ref: 52daae6a177cd3996d2b07937bc9763c8a4c1155
parent: c72005043c56a89a4276be04e92642758ffaf41e
author: Tuomas Virtanen <katajakasa@gmail.com>
date: Sun May 1 09:29:21 EDT 2016
Move directories from dumb subdir to project root
--- /dev/null
+++ b/CMakeLists.txt
@@ -1,0 +1,149 @@
+cmake_minimum_required(VERSION 3.1)
+project(libdumb C)
+
+set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake-scripts)+
+option(BUILD_EXAMPLES "Build example binaries" ON)
+
+set(CMAKE_C_FLAGS "-Wall -DDUMB_DECLARE_DEPRECATED -D_USE_SSE -msse -Wno-unused-variable -Wno-unused-but-set-variable")
+set(CMAKE_C_FLAGS_DEBUG "-ggdb -DDEBUGMODE=1 -D_DEBUG")
+set(CMAKE_C_FLAGS_RELEASE "-ffast-math -O2 -DNDEBUG")
+set(CMAKE_C_FLAGS_RELWITHDEBINFO "-ffast-math -g -O2 -DNDEBUG")
+set(CMAKE_C_FLAGS_MINSIZEREL "-ffast-math -Os -DNDEBUG")
+
+link_directories(${CMAKE_CURRENT_BINARY_DIR})+include_directories(../include/)
+
+if(BUILD_EXAMPLES)
+ find_package(argtable2)
+ find_package(SDL2)
+else()
+ message(STATUS "Not building examples")
+endif()
+
+SET(SOURCES
+ ../src/core/unload.c
+ ../src/core/rendsig.c
+ ../src/core/rendduh.c
+ ../src/core/register.c
+ ../src/core/readduh.c
+ ../src/core/rawsig.c
+ ../src/core/makeduh.c
+ ../src/core/loadduh.c
+ ../src/core/dumbfile.c
+ ../src/core/duhtag.c
+ ../src/core/duhlen.c
+ ../src/core/atexit.c
+ ../src/helpers/stdfile.c
+ ../src/helpers/silence.c
+ ../src/helpers/sampbuf.c
+ ../src/helpers/riff.c
+ ../src/helpers/resample.c
+ ../src/helpers/memfile.c
+ ../src/helpers/clickrem.c
+ ../src/helpers/barray.c
+ ../src/helpers/tarray.c
+ ../src/it/xmeffect.c
+ ../src/it/readxm2.c
+ ../src/it/readxm.c
+ ../src/it/readstm2.c
+ ../src/it/readstm.c
+ ../src/it/reads3m2.c
+ ../src/it/reads3m.c
+ ../src/it/readriff.c
+ ../src/it/readptm.c
+ ../src/it/readpsm.c
+ ../src/it/readoldpsm.c
+ ../src/it/readokt2.c
+ ../src/it/readokt.c
+ ../src/it/readmtm.c
+ ../src/it/readmod2.c
+ ../src/it/readmod.c
+ ../src/it/readdsmf.c
+ ../src/it/readasy.c
+ ../src/it/readamf2.c
+ ../src/it/readamf.c
+ ../src/it/readam.c
+ ../src/it/read6692.c
+ ../src/it/read669.c
+ ../src/it/ptmeffect.c
+ ../src/it/loadxm2.c
+ ../src/it/loadxm.c
+ ../src/it/loadstm2.c
+ ../src/it/loadstm.c
+ ../src/it/loads3m2.c
+ ../src/it/loads3m.c
+ ../src/it/loadriff2.c
+ ../src/it/loadriff.c
+ ../src/it/loadptm2.c
+ ../src/it/loadptm.c
+ ../src/it/loadpsm2.c
+ ../src/it/loadpsm.c
+ ../src/it/loadoldpsm2.c
+ ../src/it/loadoldpsm.c
+ ../src/it/loadokt2.c
+ ../src/it/loadokt.c
+ ../src/it/loadmtm2.c
+ ../src/it/loadmtm.c
+ ../src/it/loadmod2.c
+ ../src/it/loadmod.c
+ ../src/it/loadasy2.c
+ ../src/it/loadasy.c
+ ../src/it/loadamf2.c
+ ../src/it/loadamf.c
+ ../src/it/load6692.c
+ ../src/it/load669.c
+ ../src/it/itunload.c
+ ../src/it/itrender.c
+ ../src/it/itread2.c
+ ../src/it/itread.c
+ ../src/it/itorder.c
+ ../src/it/itmisc.c
+ ../src/it/itload2.c
+ ../src/it/itload.c
+ ../src/it/readany.c
+ ../src/it/loadany2.c
+ ../src/it/loadany.c
+ ../src/it/readany2.c
+ ../src/helpers/resampler.c
+ ../src/helpers/lpc.c
+)
+
+set(INSTALL_HEADERS
+ ../include/dumb.h
+)
+
+add_library(dumb ${SOURCES})+set_target_properties(dumb PROPERTIES DEBUG_POSTFIX d)
+
+set(EXAMPLE_TARGETS "")
+
+if(BUILD_EXAMPLES)
+ add_executable(dumbout ../examples/dumbout.c)
+ add_executable(dumbplay ../examples/dumbplay.c)
+ set_property(TARGET dumbout PROPERTY C_STANDARD 99)
+ set_property(TARGET dumbplay PROPERTY C_STANDARD 99)
+ if(MINGW)
+ target_link_libraries(dumbplay mingw32)
+ endif()
+
+ target_link_libraries(dumbout ${ARGTABLE2_LIBRARY} m dumb)+ target_link_libraries(dumbplay ${ARGTABLE2_LIBRARY} ${SDL2_LIBRARY} dumb)+
+ include_directories(${ARGTABLE2_INCLUDE_DIR} ${SDL2_INCLUDE_DIR} "../examples/")+ set(EXAMPLE_TARGETS ${EXAMPLE_TARGETS} "dumbout" "dumbplay")+endif()
+
+# Make sure the dylib install name path is set on OSX so you can include dumb in app bundles
+IF(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
+ set_target_properties(dumb PROPERTIES INSTALL_NAME_DIR ${CMAKE_INSTALL_PREFIX}/lib)+ENDIF(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
+
+target_link_libraries(dumb m)
+
+INSTALL(FILES ${INSTALL_HEADERS} DESTINATION include/)+INSTALL(TARGETS dumb ${EXAMPLE_TARGETS}+ RUNTIME DESTINATION bin
+ LIBRARY DESTINATION lib${LIB_SUFFIX}+ ARCHIVE DESTINATION lib${LIB_SUFFIX}+)
--- /dev/null
+++ b/COMPILING.md
@@ -1,0 +1,33 @@
+# Compiling
+
+## 1. CMake
+
+### 1.1. Example
+
+In libdumb cmake directory (dumb/cmake/), run:
+```
+mkdir -p build
+cd build
+cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr/local -DBUILD_SHARED_LIBS:BOOL=ON ..
+make
+make install
+```
+
+### 1.2. Steps
+
+1. Create a new temporary build directory and cd into it
+2. Run libdumb cmake file with cmake (eg. `cmake -DCMAKE_INSTALL_PREFIX=/install/dir -DBUILD_SHARED_LIBS:BOOL=ON -DCMAKE_BUILD_TYPE=Release path/to/dumb/cmake/dir`).
+3. Run make (eg. just `make` or `mingw32-make` or something).
+4. If needed, run make install.
+
+### 1.3. Flags
+
+* CMAKE_INSTALL_PREFIX sets the installation path prefix
+* CMAKE_BUILD_TYPE sets the build type (eg. Release, Debug, RelWithDebInfo, MinSizeRel). Debug libraries will be named libdumbd, release libraries libdumb.
+* BUILD_SHARED_LIBS selects whether cmake should build dynamic or static library. On by default. (On=shared, OFF=static)
+* BUILD_EXAMPLES selects example binaries. Note that example binaries require argtable2 and SDL2 libraries. On by default.
+* You may also need to tell cmake what kind of makefiles to create with the "-G" flag. Eg. for MSYS one would say something like `cmake -G "MSYS Makefiles" .`.
+
+## 2. Visual Studio
+
+TODO
--- /dev/null
+++ b/cmake-scripts/FindSDL2.cmake
@@ -1,0 +1,42 @@
+
+FIND_PACKAGE(Threads)
+
+SET(SDL2_SEARCH_PATHS
+ /usr/local/
+ /usr/
+)
+
+FIND_PATH(SDL2_INCLUDE_DIR SDL2/SDL.h
+ HINTS
+ PATH_SUFFIXES include
+ PATHS ${SDL2_SEARCH_PATHS}+)
+
+FIND_LIBRARY(SDL2_LIBRARY
+ NAMES SDL2
+ HINTS
+ PATH_SUFFIXES lib64 lib
+ PATHS ${SDL2_SEARCH_PATHS}+)
+
+IF(MINGW)
+ FIND_LIBRARY(SDL2MAIN_LIBRARY
+ NAMES SDL2main
+ HINTS
+ PATH_SUFFIXES lib64 lib
+ PATHS ${SDL2_SEARCH_PATHS}+ )
+ELSE()
+ SET(SDL2MAIN_LIBRARY "")
+ENDIF()
+
+IF(SDL2_INCLUDE_DIR AND SDL2_LIBRARY)
+ SET(SDL2_FOUND TRUE)
+ENDIF (SDL2_INCLUDE_DIR AND SDL2_LIBRARY)
+
+IF(SDL2_FOUND)
+ SET(SDL2_LIBRARY ${SDL2MAIN_LIBRARY} ${SDL2_LIBRARY} ${CMAKE_THREAD_LIBS_INIT})+ MESSAGE(STATUS "Found SDL2: ${SDL2_LIBRARY}")+ELSE(SDL2_FOUND)
+ MESSAGE(WARNING "Could not find SDL2")
+ENDIF(SDL2_FOUND)
\ No newline at end of file
--- /dev/null
+++ b/cmake-scripts/Findargtable2.cmake
@@ -1,0 +1,27 @@
+SET(ARGTABLE2_SEARCH_PATHS
+ /usr/local
+ /usr
+ /opt
+)
+
+FIND_PATH(ARGTABLE2_INCLUDE_DIR argtable2.h
+ HINTS
+ PATH_SUFFIXES include
+ PATHS ${ARGTABLE2_SEARCH_PATHS}+)
+FIND_LIBRARY(ARGTABLE2_LIBRARY argtable2
+ HINTS
+ PATH_SUFFIXES lib64 lib
+ PATHS ${ARGTABLE2_SEARCH_PATHS}+)
+
+if(ARGTABLE2_INCLUDE_DIR AND ARGTABLE2_LIBRARY)
+ set(ARGTABLE2_FOUND TRUE)
+endif(ARGTABLE2_INCLUDE_DIR AND ARGTABLE2_LIBRARY)
+
+
+if(ARGTABLE2_FOUND)
+ message(STATUS "Found Argtable2: ${ARGTABLE2_LIBRARY}")+else(ARGTABLE2_FOUND)
+ message(WARNING "Could not find Argtable2")
+endif(ARGTABLE2_FOUND)
\ No newline at end of file
--- a/dumb/cmake/CMakeLists.txt
+++ /dev/null
@@ -1,149 +1,0 @@
-cmake_minimum_required(VERSION 3.1)
-project(libdumb C)
-
-set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake-scripts)-
-option(BUILD_EXAMPLES "Build example binaries" ON)
-
-set(CMAKE_C_FLAGS "-Wall -DDUMB_DECLARE_DEPRECATED -D_USE_SSE -msse -Wno-unused-variable -Wno-unused-but-set-variable")
-set(CMAKE_C_FLAGS_DEBUG "-ggdb -DDEBUGMODE=1 -D_DEBUG")
-set(CMAKE_C_FLAGS_RELEASE "-ffast-math -O2 -DNDEBUG")
-set(CMAKE_C_FLAGS_RELWITHDEBINFO "-ffast-math -g -O2 -DNDEBUG")
-set(CMAKE_C_FLAGS_MINSIZEREL "-ffast-math -Os -DNDEBUG")
-
-link_directories(${CMAKE_CURRENT_BINARY_DIR})-include_directories(../include/)
-
-if(BUILD_EXAMPLES)
- find_package(argtable2)
- find_package(SDL2)
-else()
- message(STATUS "Not building examples")
-endif()
-
-SET(SOURCES
- ../src/core/unload.c
- ../src/core/rendsig.c
- ../src/core/rendduh.c
- ../src/core/register.c
- ../src/core/readduh.c
- ../src/core/rawsig.c
- ../src/core/makeduh.c
- ../src/core/loadduh.c
- ../src/core/dumbfile.c
- ../src/core/duhtag.c
- ../src/core/duhlen.c
- ../src/core/atexit.c
- ../src/helpers/stdfile.c
- ../src/helpers/silence.c
- ../src/helpers/sampbuf.c
- ../src/helpers/riff.c
- ../src/helpers/resample.c
- ../src/helpers/memfile.c
- ../src/helpers/clickrem.c
- ../src/helpers/barray.c
- ../src/helpers/tarray.c
- ../src/it/xmeffect.c
- ../src/it/readxm2.c
- ../src/it/readxm.c
- ../src/it/readstm2.c
- ../src/it/readstm.c
- ../src/it/reads3m2.c
- ../src/it/reads3m.c
- ../src/it/readriff.c
- ../src/it/readptm.c
- ../src/it/readpsm.c
- ../src/it/readoldpsm.c
- ../src/it/readokt2.c
- ../src/it/readokt.c
- ../src/it/readmtm.c
- ../src/it/readmod2.c
- ../src/it/readmod.c
- ../src/it/readdsmf.c
- ../src/it/readasy.c
- ../src/it/readamf2.c
- ../src/it/readamf.c
- ../src/it/readam.c
- ../src/it/read6692.c
- ../src/it/read669.c
- ../src/it/ptmeffect.c
- ../src/it/loadxm2.c
- ../src/it/loadxm.c
- ../src/it/loadstm2.c
- ../src/it/loadstm.c
- ../src/it/loads3m2.c
- ../src/it/loads3m.c
- ../src/it/loadriff2.c
- ../src/it/loadriff.c
- ../src/it/loadptm2.c
- ../src/it/loadptm.c
- ../src/it/loadpsm2.c
- ../src/it/loadpsm.c
- ../src/it/loadoldpsm2.c
- ../src/it/loadoldpsm.c
- ../src/it/loadokt2.c
- ../src/it/loadokt.c
- ../src/it/loadmtm2.c
- ../src/it/loadmtm.c
- ../src/it/loadmod2.c
- ../src/it/loadmod.c
- ../src/it/loadasy2.c
- ../src/it/loadasy.c
- ../src/it/loadamf2.c
- ../src/it/loadamf.c
- ../src/it/load6692.c
- ../src/it/load669.c
- ../src/it/itunload.c
- ../src/it/itrender.c
- ../src/it/itread2.c
- ../src/it/itread.c
- ../src/it/itorder.c
- ../src/it/itmisc.c
- ../src/it/itload2.c
- ../src/it/itload.c
- ../src/it/readany.c
- ../src/it/loadany2.c
- ../src/it/loadany.c
- ../src/it/readany2.c
- ../src/helpers/resampler.c
- ../src/helpers/lpc.c
-)
-
-set(INSTALL_HEADERS
- ../include/dumb.h
-)
-
-add_library(dumb ${SOURCES})-set_target_properties(dumb PROPERTIES DEBUG_POSTFIX d)
-
-set(EXAMPLE_TARGETS "")
-
-if(BUILD_EXAMPLES)
- add_executable(dumbout ../examples/dumbout.c)
- add_executable(dumbplay ../examples/dumbplay.c)
- set_property(TARGET dumbout PROPERTY C_STANDARD 99)
- set_property(TARGET dumbplay PROPERTY C_STANDARD 99)
- if(MINGW)
- target_link_libraries(dumbplay mingw32)
- endif()
-
- target_link_libraries(dumbout ${ARGTABLE2_LIBRARY} m dumb)- target_link_libraries(dumbplay ${ARGTABLE2_LIBRARY} ${SDL2_LIBRARY} dumb)-
- include_directories(${ARGTABLE2_INCLUDE_DIR} ${SDL2_INCLUDE_DIR} "../examples/")- set(EXAMPLE_TARGETS ${EXAMPLE_TARGETS} "dumbout" "dumbplay")-endif()
-
-# Make sure the dylib install name path is set on OSX so you can include dumb in app bundles
-IF(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
- set_target_properties(dumb PROPERTIES INSTALL_NAME_DIR ${CMAKE_INSTALL_PREFIX}/lib)-ENDIF(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
-
-target_link_libraries(dumb m)
-
-INSTALL(FILES ${INSTALL_HEADERS} DESTINATION include/)-INSTALL(TARGETS dumb ${EXAMPLE_TARGETS}- RUNTIME DESTINATION bin
- LIBRARY DESTINATION lib${LIB_SUFFIX}- ARCHIVE DESTINATION lib${LIB_SUFFIX}-)
--- a/dumb/cmake/cmake-scripts/FindSDL2.cmake
+++ /dev/null
@@ -1,42 +1,0 @@
-
-FIND_PACKAGE(Threads)
-
-SET(SDL2_SEARCH_PATHS
- /usr/local/
- /usr/
-)
-
-FIND_PATH(SDL2_INCLUDE_DIR SDL2/SDL.h
- HINTS
- PATH_SUFFIXES include
- PATHS ${SDL2_SEARCH_PATHS}-)
-
-FIND_LIBRARY(SDL2_LIBRARY
- NAMES SDL2
- HINTS
- PATH_SUFFIXES lib64 lib
- PATHS ${SDL2_SEARCH_PATHS}-)
-
-IF(MINGW)
- FIND_LIBRARY(SDL2MAIN_LIBRARY
- NAMES SDL2main
- HINTS
- PATH_SUFFIXES lib64 lib
- PATHS ${SDL2_SEARCH_PATHS}- )
-ELSE()
- SET(SDL2MAIN_LIBRARY "")
-ENDIF()
-
-IF(SDL2_INCLUDE_DIR AND SDL2_LIBRARY)
- SET(SDL2_FOUND TRUE)
-ENDIF (SDL2_INCLUDE_DIR AND SDL2_LIBRARY)
-
-IF(SDL2_FOUND)
- SET(SDL2_LIBRARY ${SDL2MAIN_LIBRARY} ${SDL2_LIBRARY} ${CMAKE_THREAD_LIBS_INIT})- MESSAGE(STATUS "Found SDL2: ${SDL2_LIBRARY}")-ELSE(SDL2_FOUND)
- MESSAGE(WARNING "Could not find SDL2")
-ENDIF(SDL2_FOUND)
\ No newline at end of file
--- a/dumb/cmake/cmake-scripts/Findargtable2.cmake
+++ /dev/null
@@ -1,27 +1,0 @@
-SET(ARGTABLE2_SEARCH_PATHS
- /usr/local
- /usr
- /opt
-)
-
-FIND_PATH(ARGTABLE2_INCLUDE_DIR argtable2.h
- HINTS
- PATH_SUFFIXES include
- PATHS ${ARGTABLE2_SEARCH_PATHS}-)
-FIND_LIBRARY(ARGTABLE2_LIBRARY argtable2
- HINTS
- PATH_SUFFIXES lib64 lib
- PATHS ${ARGTABLE2_SEARCH_PATHS}-)
-
-if(ARGTABLE2_INCLUDE_DIR AND ARGTABLE2_LIBRARY)
- set(ARGTABLE2_FOUND TRUE)
-endif(ARGTABLE2_INCLUDE_DIR AND ARGTABLE2_LIBRARY)
-
-
-if(ARGTABLE2_FOUND)
- message(STATUS "Found Argtable2: ${ARGTABLE2_LIBRARY}")-else(ARGTABLE2_FOUND)
- message(WARNING "Could not find Argtable2")
-endif(ARGTABLE2_FOUND)
\ No newline at end of file
--- a/dumb/cmake/readme.txt
+++ /dev/null
@@ -1,31 +1,0 @@
-Howto build libdumb with cmake
-==============================
-
-A quick example
----------------
-
-In libdumb cmake directory (dumb/cmake/), run:
-```
-mkdir -p build
-cd build
-cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr/local -DBUILD_SHARED_LIBS:BOOL=ON ..
-make
-make install
-```
-
-Steps
------
-
-1. Create a new temporary build directory and cd into it
-2. Run libdumb cmake file with cmake (eg. `cmake -DCMAKE_INSTALL_PREFIX=/install/dir -DBUILD_SHARED_LIBS:BOOL=ON -DCMAKE_BUILD_TYPE=Release path/to/dumb/cmake/dir`).
-3. Run make (eg. just `make` or `mingw32-make` or something).
-4. If needed, run make install.
-
-Flags
------
-
-* CMAKE_INSTALL_PREFIX sets the installation path prefix
-* CMAKE_BUILD_TYPE sets the build type (eg. Release, Debug, RelWithDebInfo, MinSizeRel). Debug libraries will be named libdumbd, release libraries libdumb.
-* BUILD_SHARED_LIBS selects whether cmake should build dynamic or static library. On by default. (On=shared, OFF=static)
-* BUILD_EXAMPLES selects example binaries. Note that example binaries require argtable2 and SDL2 libraries. On by default.
-* You may also need to tell cmake what kind of makefiles to create with the "-G" flag. Eg. for MSYS one would say something like `cmake -G "MSYS Makefiles" .`.
--- a/dumb/examples/dumbout.c
+++ /dev/null
@@ -1,275 +1,0 @@
-#include <argtable2.h>
-#include <dumb.h>
-#include <stdint.h>
-#include <string.h>
-#include <stdbool.h>
-#include <math.h>
-
-static const int endian_test = 1;
-#define is_bigendian() ((*(char*)&endian_test) == 0)
-
-enum ENDIANNESS {- DUMB_LITTLE_ENDIAN = 0,
- DUMB_BIG_ENDIAN
-};
-
-typedef struct {- DUH_SIGRENDERER *renderer;
- DUH *src;
- FILE *dst;
- float delta;
- int bufsize;
- bool is_stdout;
-} streamer_t;
-
-typedef struct {- int bits;
- int endianness;
- int is_unsigned;
- int freq;
- int quality;
- int n_channels;
- float volume;
- float delay;
- const char *input;
- char *output;
-} settings_t;
-
-
-int main(int argc, char *argv[]) {- int retcode = 1;
- int nerrors = 0;
- streamer_t streamer;
- settings_t settings;
- memset(&streamer, 0, sizeof(streamer_t));
- memset(&settings, 0, sizeof(settings_t));
-
- // Defaults
- settings.freq = 44100;
- settings.n_channels = 2;
- settings.bits = 16;
- settings.endianness = DUMB_LITTLE_ENDIAN;
- settings.is_unsigned = false;
- settings.volume = 1.0f;
- settings.delay = 0.0f;
- settings.quality = DUMB_RQ_CUBIC;
-
- // commandline argument parser options
- struct arg_lit *arg_help = arg_lit0("h", "help", "print this help and exits");- struct arg_dbl *arg_delay = arg_dbl0("d", "delay", "<delay>", "sets the initial delay in seconds (0.0 to 64.0, default 0.0)");- struct arg_dbl *arg_volume = arg_dbl0("v", "volume", "<volume", "sets the output volume (-8.0 to +8.0, default 1.0)");- struct arg_int *arg_samplerate = arg_int0("s", "samplerate", "<freq>", "sets the sampling rate (default 44100)");- struct arg_int *arg_quality = arg_int0("r", "quality", "<quality>", "specify the resampling quality to use");- struct arg_lit *arg_mono = arg_lit0("m", "mono", "generate mono output instead of stereo");- struct arg_lit *arg_bigendian = arg_lit0("b", "bigendian", "generate big-endian data instead of little-endian");- struct arg_lit *arg_eight = arg_lit0("8", "eight", "generate 8-bit instead of 16-bit");- struct arg_lit *arg_unsigned = arg_lit0("u", "unsigned", "generate unsigned output instead of signed");- struct arg_file *arg_output = arg_file0("o", "output", "<file>", "output file");- struct arg_file *arg_input = arg_file1(NULL, NULL, "<file>", "input module file");
- struct arg_end *arg_fend = arg_end(20);
- void* argtable[] = {arg_help, arg_input, arg_output, arg_delay, arg_volume, arg_samplerate, arg_quality,- arg_mono, arg_bigendian, arg_eight, arg_unsigned, arg_fend};
- const char* progname = "dumbout";
-
- // Make sure everything got allocated
- if(arg_nullcheck(argtable) != 0) {- fprintf(stderr, "%s: insufficient memory\n", progname);
- goto exit_0;
- }
-
- // Parse inputs
- nerrors = arg_parse(argc, argv, argtable);
-
- // Handle help
- if(arg_help->count > 0) {- fprintf(stderr, "Usage: %s", progname);
- arg_print_syntax(stderr, argtable, "\n");
- fprintf(stderr, "\nArguments:\n");
- arg_print_glossary(stderr, argtable, "%-25s %s\n");
- goto exit_0;
- }
-
- // Handle errors
- if(nerrors > 0) {- arg_print_errors(stderr, arg_fend, progname);
- fprintf(stderr, "Try '%s --help' for more information.\n", progname);
- goto exit_0;
- }
-
- // Get input and output filenames
- settings.input = arg_input->filename[0];
- if(arg_output->count > 0) {- settings.output = malloc(strlen(arg_output->filename[0])+1);
- strcpy(settings.output, arg_output->filename[0]);
- } else {- settings.output = malloc(strlen(arg_output->basename[0])+5);
- sprintf(settings.output, "%s%s", arg_output->basename[0], ".pcm");
- }
-
- // Handle the switch options
- if(arg_bigendian->count > 0) { settings.endianness = DUMB_BIG_ENDIAN; }- if(arg_eight->count > 0) { settings.bits = 8; }- if(arg_unsigned->count > 0) { settings.is_unsigned = true; }- if(arg_mono->count > 0) { settings.n_channels = 1; }-
- if(arg_delay->count > 0) {- settings.delay = arg_delay->dval[0];
- if(settings.delay < 0.0f || settings.delay >= 64.0f) {- fprintf(stderr, "Initial delay must be between 0.0f and 64.0f.\n");
- goto exit_0;
- }
- }
-
- if(arg_volume->count > 0) {- settings.volume = arg_volume->dval[0];
- if(settings.volume < -8.0f || settings.volume > 8.0f) {- fprintf(stderr, "Volume must be between -8.0f and 8.0f.\n");
- goto exit_0;
- }
- }
-
- if(arg_samplerate->count > 0) {- settings.freq = arg_samplerate->ival[0];
- if(settings.freq < 1 || settings.freq > 96000) {- fprintf(stderr, "Sampling rate must be between 1 and 96000.\n");
- goto exit_0;
- }
- }
-
- if(arg_quality->count > 0) {- settings.quality = arg_quality->ival[0];
- if(settings.quality < 0 || settings.quality >= DUMB_RQ_N_LEVELS) {- fprintf(stderr, "Quality must be between %d and %d.\n", 0, DUMB_RQ_N_LEVELS-1);
- goto exit_0;
- }
- }
-
- // dumb settings stuff
- dumb_register_stdfiles();
-
- // Load source
- streamer.src = dumb_load_any(settings.input, 0, 0);
- if(!streamer.src) {- fprintf(stderr, "Unable to load file %s for playback!\n", settings.input);
- goto exit_0;
- }
-
- // Set up playback
- streamer.renderer = duh_start_sigrenderer(streamer.src, 0, settings.n_channels, 0);
- streamer.delta = 65536.0f / settings.freq;
- streamer.bufsize = 4096 * (settings.bits / 8) * settings.n_channels;
-
- // Stop producing samples on module end
- DUMB_IT_SIGRENDERER *itsr = duh_get_it_sigrenderer(streamer.renderer);
- dumb_it_set_loop_callback(itsr, &dumb_it_callback_terminate, NULL);
- dumb_it_set_xm_speed_zero_callback(itsr, &dumb_it_callback_terminate, NULL);
- dumb_it_set_resampling_quality(itsr, settings.quality);
-
- // Open output
- if(strcmp(settings.output, "-") == 0) {- streamer.dst = stdout;
- streamer.is_stdout = true;
- } else {- streamer.dst = fopen(settings.output, "wb");
- streamer.is_stdout = false;
- if(!streamer.dst) {- fprintf(stderr, "Could not open output file %s!", settings.output);
- goto exit_1;
- }
- }
-
- bool run = true;
- char *buffer = malloc(streamer.bufsize);
- int read_samples;
- int read_bytes;
-
- // If output endianness is different than machine endianness, and output is 16 bits, reorder bytes.
- int switch_endianness = ((is_bigendian() && settings.endianness == DUMB_LITTLE_ENDIAN) ||
- (!is_bigendian() && settings.endianness == DUMB_BIG_ENDIAN));
-
- // Write the initial delay to the file if one was requested.
- long d = ((long)floor(settings.delay * settings.freq + 0.5f)) * settings.n_channels * (settings.bits / 8);
- if(d) {- // Fill the buffer with silence. Remember to take into account endianness
- if(settings.is_unsigned) {- if(settings.bits == 16) {- if(settings.endianness == DUMB_BIG_ENDIAN) {- // Unsigned 16bits big endian
- for(int i = 0; i < streamer.bufsize; i += 2) {- buffer[i ] = (char)0x80;
- buffer[i+1] = (char)0x00;
- }
- } else {- // Unsigned 16bits little endian
- for(int i = 0; i < streamer.bufsize; i += 2) {- buffer[i ] = (char)0x00;
- buffer[i+1] = (char)0x80;
- }
- }
- } else {- // Unsigned 8 bits
- memset(buffer, 0x80, streamer.bufsize);
- }
- } else {- // Signed
- memset(buffer, 0, streamer.bufsize);
- }
-
- while(d >= streamer.bufsize) {- fwrite(buffer, 1, streamer.bufsize, streamer.dst);
- d -= streamer.bufsize;
- }
- if(d) {- fwrite(buffer, 1, d, streamer.dst);
- }
- }
-
- // Loop until we have nothing to loop through. Dumb will stop giving out bytes when the file is done.
- while(run) {- read_samples = duh_render(streamer.renderer,
- settings.bits,
- (int)settings.is_unsigned,
- settings.volume,
- streamer.delta,
- 4096, buffer);
- read_bytes = read_samples * (settings.bits / 8) * settings.n_channels;
-
- // switch endianness if required
- if(switch_endianness && settings.bits == 16) {- char tmp;
- for(int i = 0; i < read_bytes / 2; i++) {- tmp = buffer[i*2+0];
- buffer[i*2+0] = buffer[i*2+1];
- buffer[i*2+1] = tmp;
- }
- }
-
- // Write to output stream and flush if it happens to be stdout
- fwrite(buffer, 1, read_bytes, streamer.dst);
- if(streamer.is_stdout) {- fflush(streamer.dst);
- }
- run = (read_samples > 0);
- }
- free(buffer);
-
- // We made it this far without crashing, so let's just exit with no error :)
- retcode = 0;
-
- if(!streamer.is_stdout && streamer.dst) {- fclose(streamer.dst);
- }
-
-exit_1:
- if(streamer.renderer) {- duh_end_sigrenderer(streamer.renderer);
- }
- if(streamer.src) {- unload_duh(streamer.src);
- }
-
-exit_0:
- free(settings.output);
- arg_freetable(argtable, sizeof(argtable)/sizeof(argtable[0]));
- return retcode;
-}
--- a/dumb/examples/dumbplay.c
+++ /dev/null
@@ -1,284 +1,0 @@
-#include <argtable2.h>
-#include <dumb.h>
-#include <stdint.h>
-#include <string.h>
-#include <signal.h>
-#include <stdbool.h>
-#include <SDL2/SDL.h>
-
-// How many samples we should handle per callback call
-#define SAMPLES 8192
-
-// How many chars wide the progress bar is
-#define PROGRESSBAR_LENGTH 25
-
-typedef struct {- // Library contexts
- DUH_SIGRENDERER *renderer;
- DUH *src;
- SDL_AudioDeviceID dev;
-
- // Runtime vars
- float delta;
- int spos; // Samples read
- int ssize; // Total samples available
- int sbytes; // bytes per sample
- bool ended;
-
- // Config switches
- int bits;
- int freq;
- int quality;
- int n_channels;
- bool no_progress;
- float volume;
- const char *input;
-} streamer_t;
-
-// Set to true if SIGTERM or SIGINT is caught
-static bool stop_signal = false;
-
-// Simple signal handler function
-static void sig_fn(int signo) {- stop_signal = true;
-}
-
-// This is called from SDL2, and should read data from a source and hand it over to SDL2 via the stream buffer.
-void stream_audio(void* userdata, Uint8* stream, int len) {- streamer_t *streamer = (streamer_t*)userdata;
-
- // Read samples from libdumb save them to the SDL buffer. Note that we are reading SAMPLES, not bytes!
- int r_samples = len / streamer->sbytes;
- int got = duh_render(streamer->renderer, streamer->bits, 0, streamer->volume, streamer->delta, r_samples, stream);
- if(got == 0) {- streamer->ended = true;
- }
-
- // Get current position from libdumb for the playback display. If we get position that is 0, it probably
- // means that the song ended and duh_sigrenderer_get_position points to the start of the file.
- streamer->spos = duh_sigrenderer_get_position(streamer->renderer);
- if(streamer->spos == 0) {- streamer->spos = streamer->ssize;
- }
-}
-
-// Simply formats timestamp to string
-void format_ms(int ticks) {- int total_seconds = ticks / 1000;
- int hours = 0;
- int minutes = 0;
- int seconds = 0;
-
- // Calculate hours, minutes and seconds
- if(total_seconds > 3600) {- hours = total_seconds / 3600;
- total_seconds = total_seconds % 3600;
- }
- if(total_seconds > 60) {- minutes = total_seconds / 60;
- total_seconds = total_seconds % 60;
- }
- seconds = total_seconds;
-
- // If necessary, show hours. Otherwise only minutes and seconds.
- if(hours > 0) {- printf("%02d:%02d:%02d", hours, minutes, seconds);- } else {- printf("%02d:%02d", minutes, seconds);- }
-}
-
-// Shows progressbar and time played
-void show_progress(int width, float progress, int ticks) {- int d = progress * width;
- printf("%3d%% [", (int)(progress*100));- for(int x = 0; x < d; x++) {- printf("=");- }
- for(int x = 0; x < (width-d); x++) {- printf(" ");- }
- printf("] ");- format_ms(ticks);
- printf("\r");- fflush(stdout);
-}
-
-int main(int argc, char *argv[]) {- int retcode = 1;
- int nerrors = 0;
- streamer_t streamer;
- memset(&streamer, 0, sizeof(streamer_t));
-
- // Signal handlers
- signal(SIGINT, sig_fn);
- signal(SIGTERM, sig_fn);
-
- // Initialize SDL2
- if(SDL_Init(SDL_INIT_AUDIO) != 0) {- fprintf(stderr, "%s\n", SDL_GetError());
- return 1;
- }
-
- // Defaults
- streamer.freq = 44100;
- streamer.n_channels = 2;
- streamer.bits = 16;
- streamer.volume = 1.0f;
- streamer.quality = DUMB_RQ_CUBIC;
-
- // commandline argument parser options
- struct arg_lit *arg_help = arg_lit0("h", "help", "print this help and exits");- struct arg_dbl *arg_volume = arg_dbl0("v", "volume", "<volume", "sets the output volume (-8.0 to +8.0, default 1.0)");- struct arg_int *arg_samplerate = arg_int0("s", "samplerate", "<freq>", "sets the sampling rate (default 44100)");- struct arg_int *arg_quality = arg_int0("r", "quality", "<quality>", "specify the resampling quality to use");- struct arg_lit *arg_mono = arg_lit0("m", "mono", "generate mono output instead of stereo");- struct arg_lit *arg_eight = arg_lit0("8", "eight", "generate 8-bit instead of 16-bit");- struct arg_lit *arg_noprogress = arg_lit0("n", "noprogress", "hide progress bar");- struct arg_file *arg_output = arg_file0("o", "output", "<file>", "output file");- struct arg_file *arg_input = arg_file1(NULL, NULL, "<file>", "input module file");
- struct arg_end *arg_fend = arg_end(20);
- void* argtable[] = {arg_help, arg_input, arg_volume, arg_samplerate, arg_quality, arg_mono, arg_eight, arg_noprogress, arg_fend};- const char* progname = "dumbplay";
-
- // Make sure everything got allocated
- if(arg_nullcheck(argtable) != 0) {- fprintf(stderr, "%s: insufficient memory\n", progname);
- goto exit_0;
- }
-
- // Parse inputs
- nerrors = arg_parse(argc, argv, argtable);
-
- // Handle help
- if(arg_help->count > 0) {- fprintf(stderr, "Usage: %s", progname);
- arg_print_syntax(stderr, argtable, "\n");
- fprintf(stderr, "\nArguments:\n");
- arg_print_glossary(stderr, argtable, "%-25s %s\n");
- goto exit_0;
- }
-
- // Handle libargtable errors
- if(nerrors > 0) {- arg_print_errors(stderr, arg_fend, progname);
- fprintf(stderr, "Try '%s --help' for more information.\n", progname);
- goto exit_0;
- }
-
- // Handle the switch options
- streamer.input = arg_input->filename[0];
- if(arg_eight->count > 0) { streamer.bits = 8; }- if(arg_mono->count > 0) { streamer.n_channels = 1; }- if(arg_noprogress->count > 0) { streamer.no_progress = true; }-
- if(arg_volume->count > 0) {- streamer.volume = arg_volume->dval[0];
- if(streamer.volume < -8.0f || streamer.volume > 8.0f) {- fprintf(stderr, "Volume must be between -8.0f and 8.0f.\n");
- goto exit_0;
- }
- }
-
- if(arg_samplerate->count > 0) {- streamer.freq = arg_samplerate->ival[0];
- if(streamer.freq < 1 || streamer.freq > 96000) {- fprintf(stderr, "Sampling rate must be between 1 and 96000.\n");
- goto exit_0;
- }
- }
-
- if(arg_quality->count > 0) {- streamer.quality = arg_quality->ival[0];
- if(streamer.quality < 0 || streamer.quality >= DUMB_RQ_N_LEVELS) {- fprintf(stderr, "Quality must be between %d and %d.\n", 0, DUMB_RQ_N_LEVELS-1);
- goto exit_0;
- }
- }
-
- // Load source file.
- dumb_register_stdfiles();
- streamer.src = dumb_load_any(streamer.input, 0, 0);
- if(!streamer.src) {- fprintf(stderr, "Unable to load file %s for playback!\n", streamer.input);
- goto exit_0;
- }
-
- // Set up playback
- streamer.renderer = duh_start_sigrenderer(streamer.src, 0, streamer.n_channels, 0);
- streamer.delta = 65536.0f / streamer.freq;
- streamer.sbytes = (streamer.bits / 8) * streamer.n_channels;
- streamer.ssize = duh_get_length(streamer.src);
-
- // Stop producing samples on module end
- DUMB_IT_SIGRENDERER *itsr = duh_get_it_sigrenderer(streamer.renderer);
- dumb_it_set_loop_callback(itsr, &dumb_it_callback_terminate, NULL);
- dumb_it_set_xm_speed_zero_callback(itsr, &dumb_it_callback_terminate, NULL);
- dumb_it_set_resampling_quality(itsr, streamer.quality);
-
- // Set up the SDL2 format we want for playback.
- SDL_AudioSpec want;
- SDL_zero(want);
- want.freq = streamer.freq;
- want.format = (streamer.bits == 16) ? AUDIO_S16 : AUDIO_S8;
- want.channels = streamer.n_channels;
- want.samples = SAMPLES;
- want.callback = stream_audio;
- want.userdata = &streamer;
-
- // Find SDL2 audio device, and request the format we just set up.
- // SDL2 will tell us what we got in the "have" struct.
- SDL_AudioSpec have;
- streamer.dev = SDL_OpenAudioDevice(NULL, 0, &want, &have, 0);
- if(streamer.dev == 0) {- fprintf(stderr, "%s\n", SDL_GetError());
- goto exit_1;
- }
-
- // Make sure we got the format we wanted. If not, stop here.
- if(have.format != want.format) {- fprintf(stderr, "Could not get correct playback format.\n");
- goto exit_2;
- }
-
- // Play file
- SDL_PauseAudioDevice(streamer.dev, 0);
-
- // Show initial state of the progress bar (if it is enabled)
- int time_start = SDL_GetTicks();
- float seek = 0.0f;
- int ms_played = 0;
- if(!streamer.no_progress) {- show_progress(PROGRESSBAR_LENGTH, seek, ms_played);
- }
-
- // Loop while dumb is still giving data. Update progressbar if enabled.
- while(!stop_signal && !streamer.ended) {- if(!streamer.no_progress) {- seek = ((float)streamer.spos) / ((float)streamer.ssize);
- ms_played = SDL_GetTicks() - time_start;
- show_progress(PROGRESSBAR_LENGTH, seek, ms_played);
- }
- SDL_Delay(100);
- }
-
- // We made it this far without crashing, so let's just exit with no error :)
- retcode = 0;
-
- // Free up resources and exit.
-exit_2:
- SDL_CloseAudioDevice(streamer.dev);
-
-exit_1:
- if(streamer.renderer) {- duh_end_sigrenderer(streamer.renderer);
- }
- if(streamer.src) {- unload_duh(streamer.src);
- }
-
-exit_0:
- arg_freetable(argtable, sizeof(argtable)/sizeof(argtable[0]));
- SDL_Quit();
- return retcode;
-}
--- a/dumb/include/dumb.h
+++ /dev/null
@@ -1,824 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * dumb.h - The user header file for DUMB. / / \ \
- * | < / \_
- * Include this file in any of your files in | \/ /\ /
- * which you wish to use the DUMB functions \_ / > /
- * and variables. | \ / /
- * | ' /
- * Allegro users, you will probably want aldumb.h. \__/
- */
-
-#ifndef DUMB_H
-#define DUMB_H
-
-
-#include <stdlib.h>
-#include <stdio.h>
-
-#ifdef _DEBUG
-#ifdef _MSC_VER
-#define _CRTDBG_MAP_ALLOC
-#include <crtdbg.h>
-#endif
-#endif
-
-#ifdef __cplusplus
- extern "C" {-#endif
-
-
-#define DUMB_MAJOR_VERSION 1
-#define DUMB_MINOR_VERSION 0
-#define DUMB_REVISION_VERSION 0
-
-#define DUMB_VERSION (DUMB_MAJOR_VERSION*10000 + DUMB_MINOR_VERSION*100 + DUMB_REVISION_VERSION)
-
-#define DUMB_VERSION_STR "1.0.0"
-
-#define DUMB_NAME "DUMB v" DUMB_VERSION_STR
-
-#define DUMB_YEAR 2015
-#define DUMB_MONTH 1
-#define DUMB_DAY 17
-
-#define DUMB_YEAR_STR2 "15"
-#define DUMB_YEAR_STR4 "2015"
-#define DUMB_MONTH_STR1 "1"
-#define DUMB_DAY_STR1 "17"
-
-#if DUMB_MONTH < 10
-#define DUMB_MONTH_STR2 "0" DUMB_MONTH_STR1
-#else
-#define DUMB_MONTH_STR2 DUMB_MONTH_STR1
-#endif
-
-#if DUMB_DAY < 10
-#define DUMB_DAY_STR2 "0" DUMB_DAY_STR1
-#else
-#define DUMB_DAY_STR2 DUMB_DAY_STR1
-#endif
-
-
-/* WARNING: The month and day were inadvertently swapped in the v0.8 release.
- * Please do not compare this constant against any date in 2002. In
- * any case, DUMB_VERSION is probably more useful for this purpose.
- */
-#define DUMB_DATE (DUMB_YEAR*10000 + DUMB_MONTH*100 + DUMB_DAY)
-
-#define DUMB_DATE_STR DUMB_DAY_STR1 "." DUMB_MONTH_STR1 "." DUMB_YEAR_STR4
-
-
-#undef MIN
-#undef MAX
-#undef MID
-
-#define MIN(x,y) (((x) < (y)) ? (x) : (y))
-#define MAX(x,y) (((x) > (y)) ? (x) : (y))
-#define MID(x,y,z) MAX((x), MIN((y), (z)))
-
-#undef ABS
-#define ABS(x) (((x) >= 0) ? (x) : (-(x)))
-
-
-#ifdef DEBUGMODE
-
-#ifndef ASSERT
-#include <assert.h>
-#define ASSERT(n) assert(n)
-#endif
-#ifndef TRACE
-// it would be nice if this did actually trace ...
-#define TRACE 1 ? (void)0 : (void)printf
-#endif
-
-#else
-
-#ifndef ASSERT
-#define ASSERT(n)
-#endif
-#ifndef TRACE
-#define TRACE 1 ? (void)0 : (void)printf
-#endif
-
-#endif
-
-
-#define DUMB_ID(a,b,c,d) (((unsigned int)(a) << 24) | \
- ((unsigned int)(b) << 16) | \
- ((unsigned int)(c) << 8) | \
- ((unsigned int)(d) ))
-
-
-
-#ifndef LONG_LONG
-#if defined __GNUC__ || defined __INTEL_COMPILER || defined __MWERKS__
-#define LONG_LONG long long
-#elif defined _MSC_VER || defined __WATCOMC__
-#define LONG_LONG __int64
-#elif defined __sgi
-#define LONG_LONG long long
-#else
-#error 64-bit integer type unknown
-#endif
-#endif
-
-#if __GNUC__ * 100 + __GNUC_MINOR__ >= 301 /* GCC 3.1+ */
-#ifndef DUMB_DECLARE_DEPRECATED
-#define DUMB_DECLARE_DEPRECATED
-#endif
-#define DUMB_DEPRECATED __attribute__((__deprecated__))
-#else
-#define DUMB_DEPRECATED
-#endif
-
-
-/* Basic Sample Type. Normal range is -0x800000 to 0x7FFFFF. */
-
-typedef int sample_t;
-
-
-/* Library Clean-up Management */
-
-int dumb_atexit(void (*proc)(void));
-
-void dumb_exit(void);
-
-
-/* File Input Functions */
-
-typedef struct DUMBFILE_SYSTEM
-{- void *(*open)(const char *filename);
- int (*skip)(void *f, long n);
- int (*getc)(void *f);
- long (*getnc)(char *ptr, long n, void *f);
- void (*close)(void *f);
- int (*seek)(void *f, long n);
- long (*get_size)(void *f);
-}
-DUMBFILE_SYSTEM;
-
-typedef struct DUMBFILE DUMBFILE;
-
-void register_dumbfile_system(const DUMBFILE_SYSTEM *dfs);
-
-DUMBFILE *dumbfile_open(const char *filename);
-DUMBFILE *dumbfile_open_ex(void *file, const DUMBFILE_SYSTEM *dfs);
-
-long dumbfile_pos(DUMBFILE *f);
-int dumbfile_skip(DUMBFILE *f, long n);
-
-#define DFS_SEEK_SET 0
-#define DFS_SEEK_CUR 1
-#define DFS_SEEK_END 2
-
-int dumbfile_seek(DUMBFILE *f, long n, int origin);
-
-long dumbfile_get_size(DUMBFILE *f);
-
-int dumbfile_getc(DUMBFILE *f);
-
-int dumbfile_igetw(DUMBFILE *f);
-int dumbfile_mgetw(DUMBFILE *f);
-
-long dumbfile_igetl(DUMBFILE *f);
-long dumbfile_mgetl(DUMBFILE *f);
-
-unsigned long dumbfile_cgetul(DUMBFILE *f);
-signed long dumbfile_cgetsl(DUMBFILE *f);
-
-long dumbfile_getnc(char *ptr, long n, DUMBFILE *f);
-
-int dumbfile_error(DUMBFILE *f);
-int dumbfile_close(DUMBFILE *f);
-
-
-/* stdio File Input Module */
-
-void dumb_register_stdfiles(void);
-
-DUMBFILE *dumbfile_open_stdfile(FILE *p);
-
-
-/* Memory File Input Module */
-
-DUMBFILE *dumbfile_open_memory(const char *data, long size);
-
-
-/* DUH Management */
-
-typedef struct DUH DUH;
-
-#define DUH_SIGNATURE DUMB_ID('D','U','H','!')-
-void unload_duh(DUH *duh);
-
-DUH *load_duh(const char *filename);
-DUH *read_duh(DUMBFILE *f);
-
-long duh_get_length(DUH *duh);
-
-const char *duh_get_tag(DUH *duh, const char *key);
-int duh_get_tag_iterator_size(DUH *duh);
-int duh_get_tag_iterator_get(DUH *duh, const char **key, const char **tag, int i);
-
-/* Signal Rendering Functions */
-
-typedef struct DUH_SIGRENDERER DUH_SIGRENDERER;
-
-DUH_SIGRENDERER *duh_start_sigrenderer(DUH *duh, int sig, int n_channels, long pos);
-
-#ifdef DUMB_DECLARE_DEPRECATED
-typedef void (*DUH_SIGRENDERER_CALLBACK)(void *data, sample_t **samples, int n_channels, long length);
-/* This is deprecated, but is not marked as such because GCC tends to
- * complain spuriously when the typedef is used later. See comments below.
- */
-
-void duh_sigrenderer_set_callback(
- DUH_SIGRENDERER *sigrenderer,
- DUH_SIGRENDERER_CALLBACK callback, void *data
-) DUMB_DEPRECATED;
-/* The 'callback' argument's type has changed for const-correctness. See the
- * DUH_SIGRENDERER_CALLBACK definition just above. Also note that the samples
- * in the buffer are now 256 times as large; the normal range is -0x800000 to
- * 0x7FFFFF. The function has been renamed partly because its functionality
- * has changed slightly and partly so that its name is more meaningful. The
- * new one is duh_sigrenderer_set_analyser_callback(), and the typedef for
- * the function pointer has also changed, from DUH_SIGRENDERER_CALLBACK to
- * DUH_SIGRENDERER_ANALYSER_CALLBACK. (If you wanted to use this callback to
- * apply a DSP effect, don't worry; there is a better way of doing this. It
- * is undocumented, so contact me and I shall try to help. Contact details
- * are in readme.txt.)
- */
-
-typedef void (*DUH_SIGRENDERER_ANALYSER_CALLBACK)(void *data, const sample_t *const *samples, int n_channels, long length);
-/* This is deprecated, but is not marked as such because GCC tends to
- * complain spuriously when the typedef is used later. See comments below.
- */
-
-void duh_sigrenderer_set_analyser_callback(
- DUH_SIGRENDERER *sigrenderer,
- DUH_SIGRENDERER_ANALYSER_CALLBACK callback, void *data
-) DUMB_DEPRECATED;
-/* This is deprecated because the meaning of the 'samples' parameter in the
- * callback needed to change. For stereo applications, the array used to be
- * indexed with samples[channel][pos]. It is now indexed with
- * samples[0][pos*2+channel]. Mono sample data are still indexed with
- * samples[0][pos]. The array is still 2D because samples will probably only
- * ever be interleaved in twos. In order to fix your code, adapt it to the
- * new sample layout and then call
- * duh_sigrenderer_set_sample_analyser_callback below instead of this
- * function.
- */
-#endif
-
-typedef void (*DUH_SIGRENDERER_SAMPLE_ANALYSER_CALLBACK)(void *data, const sample_t *const *samples, int n_channels, long length);
-
-void duh_sigrenderer_set_sample_analyser_callback(
- DUH_SIGRENDERER *sigrenderer,
- DUH_SIGRENDERER_SAMPLE_ANALYSER_CALLBACK callback, void *data
-);
-
-int duh_sigrenderer_get_n_channels(DUH_SIGRENDERER *sigrenderer);
-long duh_sigrenderer_get_position(DUH_SIGRENDERER *sigrenderer);
-
-void duh_sigrenderer_set_sigparam(DUH_SIGRENDERER *sigrenderer, unsigned char id, long value);
-
-#ifdef DUMB_DECLARE_DEPRECATED
-long duh_sigrenderer_get_samples(
- DUH_SIGRENDERER *sigrenderer,
- float volume, float delta,
- long size, sample_t **samples
-) DUMB_DEPRECATED;
-/* The sample format has changed, so if you were using this function,
- * you should switch to duh_sigrenderer_generate_samples() and change
- * how you interpret the samples array. See the comments for
- * duh_sigrenderer_set_analyser_callback().
- */
-#endif
-
-long duh_sigrenderer_generate_samples(
- DUH_SIGRENDERER *sigrenderer,
- float volume, float delta,
- long size, sample_t **samples
-);
-
-void duh_sigrenderer_get_current_sample(DUH_SIGRENDERER *sigrenderer, float volume, sample_t *samples);
-
-void duh_end_sigrenderer(DUH_SIGRENDERER *sigrenderer);
-
-
-/* DUH Rendering Functions */
-
-/* For packed integers: 8, 16, 24-bit wide.
- * Intermediary buffer sig_samples must be freed with destroy_sample_buffer()
- * in the end of the rendering loop.
- */
-long duh_render_int(
- DUH_SIGRENDERER *sigrenderer,
- sample_t ***sig_samples,
- long *sig_samples_size,
- int bits, int unsign,
- float volume, float delta,
- long size, void *sptr
-);
-
-/* For floats: 32, 64-bit wide.
- * Intermediary buffer sig_samples must be freed with destroy_sample_buffer()
- * in the end of the rendering loop.
- */
-long duh_render_float(
- DUH_SIGRENDERER *sigrenderer,
- sample_t ***sig_samples,
- long *sig_samples_size,
- int bits,
- float volume, float delta,
- long size, void *sptr
-);
-
-#ifdef DUMB_DECLARE_DEPRECATED
-
-long duh_render(
- DUH_SIGRENDERER *sigrenderer,
- int bits, int unsign,
- float volume, float delta,
- long size, void *sptr
-) DUMB_DEPRECATED;
-
-long duh_render_signal(
- DUH_SIGRENDERER *sigrenderer,
- float volume, float delta,
- long size, sample_t **samples
-) DUMB_DEPRECATED;
-/* Please use duh_sigrenderer_generate_samples(), and see the
- * comments for the deprecated duh_sigrenderer_get_samples() too.
- */
-
-typedef DUH_SIGRENDERER DUH_RENDERER DUMB_DEPRECATED;
-/* Please use DUH_SIGRENDERER instead of DUH_RENDERER. */
-
-DUH_SIGRENDERER *duh_start_renderer(DUH *duh, int n_channels, long pos) DUMB_DEPRECATED;
-/* Please use duh_start_sigrenderer() instead. Pass 0 for 'sig'. */
-
-int duh_renderer_get_n_channels(DUH_SIGRENDERER *dr) DUMB_DEPRECATED;
-long duh_renderer_get_position(DUH_SIGRENDERER *dr) DUMB_DEPRECATED;
-/* Please use the duh_sigrenderer_*() equivalents of these two functions. */
-
-void duh_end_renderer(DUH_SIGRENDERER *dr) DUMB_DEPRECATED;
-/* Please use duh_end_sigrenderer() instead. */
-
-DUH_SIGRENDERER *duh_renderer_encapsulate_sigrenderer(DUH_SIGRENDERER *sigrenderer) DUMB_DEPRECATED;
-DUH_SIGRENDERER *duh_renderer_get_sigrenderer(DUH_SIGRENDERER *dr) DUMB_DEPRECATED;
-DUH_SIGRENDERER *duh_renderer_decompose_to_sigrenderer(DUH_SIGRENDERER *dr) DUMB_DEPRECATED;
-/* These functions have become no-ops that just return the parameter.
- * So, for instance, replace
- * duh_renderer_encapsulate_sigrenderer(my_sigrenderer)
- * with
- * my_sigrenderer
- */
-
-#endif
-
-
-/* Impulse Tracker Support */
-
-extern int dumb_it_max_to_mix;
-
-typedef struct DUMB_IT_SIGDATA DUMB_IT_SIGDATA;
-typedef struct DUMB_IT_SIGRENDERER DUMB_IT_SIGRENDERER;
-
-DUMB_IT_SIGDATA *duh_get_it_sigdata(DUH *duh);
-DUH_SIGRENDERER *duh_encapsulate_it_sigrenderer(DUMB_IT_SIGRENDERER *it_sigrenderer, int n_channels, long pos);
-DUMB_IT_SIGRENDERER *duh_get_it_sigrenderer(DUH_SIGRENDERER *sigrenderer);
-
-int dumb_it_trim_silent_patterns(DUH * duh);
-
-typedef int (*dumb_scan_callback)(void *, int, long);
-int dumb_it_scan_for_playable_orders(DUMB_IT_SIGDATA *sigdata, dumb_scan_callback callback, void * callback_data);
-
-DUH_SIGRENDERER *dumb_it_start_at_order(DUH *duh, int n_channels, int startorder);
-
-enum
-{- DUMB_IT_RAMP_NONE = 0,
- DUMB_IT_RAMP_ONOFF_ONLY = 1,
- DUMB_IT_RAMP_FULL = 2
-};
-
-void dumb_it_set_ramp_style(DUMB_IT_SIGRENDERER * sigrenderer, int ramp_style);
-
-void dumb_it_set_loop_callback(DUMB_IT_SIGRENDERER *sigrenderer, int (*callback)(void *data), void *data);
-void dumb_it_set_xm_speed_zero_callback(DUMB_IT_SIGRENDERER *sigrenderer, int (*callback)(void *data), void *data);
-void dumb_it_set_midi_callback(DUMB_IT_SIGRENDERER *sigrenderer, int (*callback)(void *data, int channel, unsigned char midi_byte), void *data);
-void dumb_it_set_global_volume_zero_callback(DUMB_IT_SIGRENDERER *sigrenderer, int (*callback)(void *data), void *data);
-
-int dumb_it_callback_terminate(void *data);
-int dumb_it_callback_midi_block(void *data, int channel, unsigned char midi_byte);
-
-/* dumb_*_mod*: restrict_ |= 1-Don't read 15 sample files / 2-Use old pattern counting method */
-
-DUH *dumb_load_it(const char *filename);
-DUH *dumb_load_xm(const char *filename);
-DUH *dumb_load_s3m(const char *filename);
-DUH *dumb_load_stm(const char *filename);
-DUH *dumb_load_mod(const char *filename, int restrict_);
-DUH *dumb_load_ptm(const char *filename);
-DUH *dumb_load_669(const char *filename);
-DUH *dumb_load_psm(const char *filename, int subsong);
-DUH *dumb_load_old_psm(const char * filename);
-DUH *dumb_load_mtm(const char *filename);
-DUH *dumb_load_riff(const char *filename);
-DUH *dumb_load_asy(const char *filename);
-DUH *dumb_load_amf(const char *filename);
-DUH *dumb_load_okt(const char *filename);
-
-DUH *dumb_read_it(DUMBFILE *f);
-DUH *dumb_read_xm(DUMBFILE *f);
-DUH *dumb_read_s3m(DUMBFILE *f);
-DUH *dumb_read_stm(DUMBFILE *f);
-DUH *dumb_read_mod(DUMBFILE *f, int restrict_);
-DUH *dumb_read_ptm(DUMBFILE *f);
-DUH *dumb_read_669(DUMBFILE *f);
-DUH *dumb_read_psm(DUMBFILE *f, int subsong);
-DUH *dumb_read_old_psm(DUMBFILE *f);
-DUH *dumb_read_mtm(DUMBFILE *f);
-DUH *dumb_read_riff(DUMBFILE *f);
-DUH *dumb_read_asy(DUMBFILE *f);
-DUH *dumb_read_amf(DUMBFILE *f);
-DUH *dumb_read_okt(DUMBFILE *f);
-
-DUH *dumb_load_it_quick(const char *filename);
-DUH *dumb_load_xm_quick(const char *filename);
-DUH *dumb_load_s3m_quick(const char *filename);
-DUH *dumb_load_stm_quick(const char *filename);
-DUH *dumb_load_mod_quick(const char *filename, int restrict_);
-DUH *dumb_load_ptm_quick(const char *filename);
-DUH *dumb_load_669_quick(const char *filename);
-DUH *dumb_load_psm_quick(const char *filename, int subsong);
-DUH *dumb_load_old_psm_quick(const char * filename);
-DUH *dumb_load_mtm_quick(const char *filename);
-DUH *dumb_load_riff_quick(const char *filename);
-DUH *dumb_load_asy_quick(const char *filename);
-DUH *dumb_load_amf_quick(const char *filename);
-DUH *dumb_load_okt_quick(const char *filename);
-
-DUH *dumb_read_it_quick(DUMBFILE *f);
-DUH *dumb_read_xm_quick(DUMBFILE *f);
-DUH *dumb_read_s3m_quick(DUMBFILE *f);
-DUH *dumb_read_stm_quick(DUMBFILE *f);
-DUH *dumb_read_mod_quick(DUMBFILE *f, int restrict_);
-DUH *dumb_read_ptm_quick(DUMBFILE *f);
-DUH *dumb_read_669_quick(DUMBFILE *f);
-DUH *dumb_read_psm_quick(DUMBFILE *f, int subsong);
-DUH *dumb_read_old_psm_quick(DUMBFILE *f);
-DUH *dumb_read_mtm_quick(DUMBFILE *f);
-DUH *dumb_read_riff_quick(DUMBFILE *f);
-DUH *dumb_read_asy_quick(DUMBFILE *f);
-DUH *dumb_read_amf_quick(DUMBFILE *f);
-DUH *dumb_read_okt_quick(DUMBFILE *f);
-
-DUH *dumb_read_any_quick(DUMBFILE *f, int restrict_, int subsong);
-DUH *dumb_read_any(DUMBFILE *f, int restrict_, int subsong);
-
-DUH *dumb_load_any_quick(const char *filename, int restrict_, int subsong);
-DUH *dumb_load_any(const char *filename, int restrict_, int subsong);
-
-long dumb_it_build_checkpoints(DUMB_IT_SIGDATA *sigdata, int startorder);
-void dumb_it_do_initial_runthrough(DUH *duh);
-
-int dumb_get_psm_subsong_count(DUMBFILE *f);
-
-const unsigned char *dumb_it_sd_get_song_message(DUMB_IT_SIGDATA *sd);
-
-int dumb_it_sd_get_n_orders(DUMB_IT_SIGDATA *sd);
-int dumb_it_sd_get_n_samples(DUMB_IT_SIGDATA *sd);
-int dumb_it_sd_get_n_instruments(DUMB_IT_SIGDATA *sd);
-
-const unsigned char *dumb_it_sd_get_sample_name(DUMB_IT_SIGDATA *sd, int i);
-const unsigned char *dumb_it_sd_get_sample_filename(DUMB_IT_SIGDATA *sd, int i);
-const unsigned char *dumb_it_sd_get_instrument_name(DUMB_IT_SIGDATA *sd, int i);
-const unsigned char *dumb_it_sd_get_instrument_filename(DUMB_IT_SIGDATA *sd, int i);
-
-int dumb_it_sd_get_initial_global_volume(DUMB_IT_SIGDATA *sd);
-void dumb_it_sd_set_initial_global_volume(DUMB_IT_SIGDATA *sd, int gv);
-
-int dumb_it_sd_get_mixing_volume(DUMB_IT_SIGDATA *sd);
-void dumb_it_sd_set_mixing_volume(DUMB_IT_SIGDATA *sd, int mv);
-
-int dumb_it_sd_get_initial_speed(DUMB_IT_SIGDATA *sd);
-void dumb_it_sd_set_initial_speed(DUMB_IT_SIGDATA *sd, int speed);
-
-int dumb_it_sd_get_initial_tempo(DUMB_IT_SIGDATA *sd);
-void dumb_it_sd_set_initial_tempo(DUMB_IT_SIGDATA *sd, int tempo);
-
-int dumb_it_sd_get_initial_channel_volume(DUMB_IT_SIGDATA *sd, int channel);
-void dumb_it_sd_set_initial_channel_volume(DUMB_IT_SIGDATA *sd, int channel, int volume);
-
-int dumb_it_sr_get_current_order(DUMB_IT_SIGRENDERER *sr);
-int dumb_it_sr_get_current_row(DUMB_IT_SIGRENDERER *sr);
-
-int dumb_it_sr_get_global_volume(DUMB_IT_SIGRENDERER *sr);
-void dumb_it_sr_set_global_volume(DUMB_IT_SIGRENDERER *sr, int gv);
-
-int dumb_it_sr_get_tempo(DUMB_IT_SIGRENDERER *sr);
-void dumb_it_sr_set_tempo(DUMB_IT_SIGRENDERER *sr, int tempo);
-
-int dumb_it_sr_get_speed(DUMB_IT_SIGRENDERER *sr);
-void dumb_it_sr_set_speed(DUMB_IT_SIGRENDERER *sr, int speed);
-
-#define DUMB_IT_N_CHANNELS 64
-#define DUMB_IT_N_NNA_CHANNELS 192
-#define DUMB_IT_TOTAL_CHANNELS (DUMB_IT_N_CHANNELS + DUMB_IT_N_NNA_CHANNELS)
-
-/* Channels passed to any of these functions are 0-based */
-int dumb_it_sr_get_channel_volume(DUMB_IT_SIGRENDERER *sr, int channel);
-void dumb_it_sr_set_channel_volume(DUMB_IT_SIGRENDERER *sr, int channel, int volume);
-
-int dumb_it_sr_get_channel_muted(DUMB_IT_SIGRENDERER *sr, int channel);
-void dumb_it_sr_set_channel_muted(DUMB_IT_SIGRENDERER *sr, int channel, int muted);
-
-typedef struct DUMB_IT_CHANNEL_STATE DUMB_IT_CHANNEL_STATE;
-
-struct DUMB_IT_CHANNEL_STATE
-{- int channel; /* 0-based; meaningful for NNA channels */
- int sample; /* 1-based; 0 if nothing playing, then other fields undef */
- int freq; /* in Hz */
- float volume; /* 1.0 maximum; affected by ALL factors, inc. mixing vol */
- unsigned char pan; /* 0-64, 100 for surround */
- signed char subpan; /* use (pan + subpan/256.0f) or ((pan<<8)+subpan) */
- unsigned char filter_cutoff; /* 0-127 cutoff=127 AND resonance=0 */
- unsigned char filter_subcutoff; /* 0-255 -> no filters (subcutoff */
- unsigned char filter_resonance; /* 0-127 always 0 in this case) */
- /* subcutoff only changes from zero if filter envelopes are in use. The
- * calculation (filter_cutoff + filter_subcutoff/256.0f) gives a more
- * accurate filter cutoff measurement as a float. It would often be more
- * useful to use a scaled int such as ((cutoff<<8) + subcutoff).
- */
-};
-
-/* Values of 64 or more will access NNA channels here. */
-void dumb_it_sr_get_channel_state(DUMB_IT_SIGRENDERER *sr, int channel, DUMB_IT_CHANNEL_STATE *state);
-
-
-/* Signal Design Helper Values */
-
-/* Use pow(DUMB_SEMITONE_BASE, n) to get the 'delta' value to transpose up by
- * n semitones. To transpose down, use negative n.
- */
-#define DUMB_SEMITONE_BASE 1.059463094359295309843105314939748495817
-
-/* Use pow(DUMB_QUARTERTONE_BASE, n) to get the 'delta' value to transpose up
- * by n quartertones. To transpose down, use negative n.
- */
-#define DUMB_QUARTERTONE_BASE 1.029302236643492074463779317738953977823
-
-/* Use pow(DUMB_PITCH_BASE, n) to get the 'delta' value to transpose up by n
- * units. In this case, 256 units represent one semitone; 3072 units
- * represent one octave. These units are used by the sequence signal (SEQU).
- */
-#define DUMB_PITCH_BASE 1.000225659305069791926712241547647863626
-
-
-/* Signal Design Function Types */
-
-typedef void sigdata_t;
-typedef void sigrenderer_t;
-
-typedef sigdata_t *(*DUH_LOAD_SIGDATA)(DUH *duh, DUMBFILE *file);
-
-typedef sigrenderer_t *(*DUH_START_SIGRENDERER)(
- DUH *duh,
- sigdata_t *sigdata,
- int n_channels,
- long pos
-);
-
-typedef void (*DUH_SIGRENDERER_SET_SIGPARAM)(
- sigrenderer_t *sigrenderer,
- unsigned char id, long value
-);
-
-typedef long (*DUH_SIGRENDERER_GENERATE_SAMPLES)(
- sigrenderer_t *sigrenderer,
- float volume, float delta,
- long size, sample_t **samples
-);
-
-typedef void (*DUH_SIGRENDERER_GET_CURRENT_SAMPLE)(
- sigrenderer_t *sigrenderer,
- float volume,
- sample_t *samples
-);
-
-typedef long (*DUH_SIGRENDERER_GET_POSITION)(
- sigrenderer_t *sigrenderer
-);
-
-typedef void (*DUH_END_SIGRENDERER)(sigrenderer_t *sigrenderer);
-
-typedef void (*DUH_UNLOAD_SIGDATA)(sigdata_t *sigdata);
-
-
-/* Signal Design Function Registration */
-
-typedef struct DUH_SIGTYPE_DESC
-{- long type;
- DUH_LOAD_SIGDATA load_sigdata;
- DUH_START_SIGRENDERER start_sigrenderer;
- DUH_SIGRENDERER_SET_SIGPARAM sigrenderer_set_sigparam;
- DUH_SIGRENDERER_GENERATE_SAMPLES sigrenderer_generate_samples;
- DUH_SIGRENDERER_GET_CURRENT_SAMPLE sigrenderer_get_current_sample;
- DUH_SIGRENDERER_GET_POSITION sigrenderer_get_position;
- DUH_END_SIGRENDERER end_sigrenderer;
- DUH_UNLOAD_SIGDATA unload_sigdata;
-}
-DUH_SIGTYPE_DESC;
-
-void dumb_register_sigtype(DUH_SIGTYPE_DESC *desc);
-
-int duh_add_signal(DUH *duh, DUH_SIGTYPE_DESC *desc, sigdata_t *sigdata);
-
-
-// Decide where to put these functions; new heading?
-
-sigdata_t *duh_get_raw_sigdata(DUH *duh, int sig, long type);
-
-DUH_SIGRENDERER *duh_encapsulate_raw_sigrenderer(sigrenderer_t *vsigrenderer, DUH_SIGTYPE_DESC *desc, int n_channels, long pos);
-sigrenderer_t *duh_get_raw_sigrenderer(DUH_SIGRENDERER *sigrenderer, long type);
-
-
-/* Standard Signal Types */
-
-//void dumb_register_sigtype_sample(void);
-
-
-/* Sample Buffer Allocation Helpers */
-
-#ifdef DUMB_DECLARE_DEPRECATED
-sample_t **create_sample_buffer(int n_channels, long length) DUMB_DEPRECATED;
-/* DUMB has been changed to interleave stereo samples. Use
- * allocate_sample_buffer() instead, and see the comments for
- * duh_sigrenderer_set_analyser_callback().
- */
-#endif
-sample_t **allocate_sample_buffer(int n_channels, long length);
-void destroy_sample_buffer(sample_t **samples);
-
-
-/* Silencing Helper */
-
-void dumb_silence(sample_t *samples, long length);
-
-
-/* Click Removal Helpers */
-
-typedef struct DUMB_CLICK_REMOVER DUMB_CLICK_REMOVER;
-
-DUMB_CLICK_REMOVER *dumb_create_click_remover(void);
-void dumb_record_click(DUMB_CLICK_REMOVER *cr, long pos, sample_t step);
-void dumb_remove_clicks(DUMB_CLICK_REMOVER *cr, sample_t *samples, long length, int step, float halflife);
-sample_t dumb_click_remover_get_offset(DUMB_CLICK_REMOVER *cr);
-void dumb_destroy_click_remover(DUMB_CLICK_REMOVER *cr);
-
-DUMB_CLICK_REMOVER **dumb_create_click_remover_array(int n);
-void dumb_record_click_array(int n, DUMB_CLICK_REMOVER **cr, long pos, sample_t *step);
-void dumb_record_click_negative_array(int n, DUMB_CLICK_REMOVER **cr, long pos, sample_t *step);
-void dumb_remove_clicks_array(int n, DUMB_CLICK_REMOVER **cr, sample_t **samples, long length, float halflife);
-void dumb_click_remover_get_offset_array(int n, DUMB_CLICK_REMOVER **cr, sample_t *offset);
-void dumb_destroy_click_remover_array(int n, DUMB_CLICK_REMOVER **cr);
-
-
-/* Resampling Helpers */
-
-#define DUMB_RQ_ALIASING 0
-#define DUMB_RQ_BLEP 1
-#define DUMB_RQ_LINEAR 2
-#define DUMB_RQ_BLAM 3
-#define DUMB_RQ_CUBIC 4
-#define DUMB_RQ_FIR 5
-#define DUMB_RQ_N_LEVELS 6
-
-extern int dumb_resampling_quality; /* This specifies the default */
-void dumb_it_set_resampling_quality(DUMB_IT_SIGRENDERER * sigrenderer, int quality); /* This overrides it */
-
-typedef struct DUMB_RESAMPLER DUMB_RESAMPLER;
-
-typedef struct DUMB_VOLUME_RAMP_INFO DUMB_VOLUME_RAMP_INFO;
-
-typedef void (*DUMB_RESAMPLE_PICKUP)(DUMB_RESAMPLER *resampler, void *data);
-
-struct DUMB_RESAMPLER
-{- void *src;
- long pos;
- int subpos;
- long start, end;
- int dir;
- DUMB_RESAMPLE_PICKUP pickup;
- void *pickup_data;
- int quality;
- /* Everything below this point is internal: do not use. */
- union {- sample_t x24[3*2];
- short x16[3*2];
- signed char x8[3*2];
- } x;
- int overshot;
- double fir_resampler_ratio;
- void* fir_resampler[2];
-};
-
-struct DUMB_VOLUME_RAMP_INFO
-{- float volume;
- float delta;
- float target;
- float mix;
- unsigned char declick_stage;
-};
-
-void dumb_reset_resampler(DUMB_RESAMPLER *resampler, sample_t *src, int src_channels, long pos, long start, long end, int quality);
-DUMB_RESAMPLER *dumb_start_resampler(sample_t *src, int src_channels, long pos, long start, long end, int quality);
-long dumb_resample_1_1(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume, float delta);
-long dumb_resample_1_2(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
-long dumb_resample_2_1(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
-long dumb_resample_2_2(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
-void dumb_resample_get_current_sample_1_1(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume, sample_t *dst);
-void dumb_resample_get_current_sample_1_2(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
-void dumb_resample_get_current_sample_2_1(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
-void dumb_resample_get_current_sample_2_2(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
-void dumb_end_resampler(DUMB_RESAMPLER *resampler);
-
-void dumb_reset_resampler_16(DUMB_RESAMPLER *resampler, short *src, int src_channels, long pos, long start, long end, int quality);
-DUMB_RESAMPLER *dumb_start_resampler_16(short *src, int src_channels, long pos, long start, long end, int quality);
-long dumb_resample_16_1_1(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume, float delta);
-long dumb_resample_16_1_2(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
-long dumb_resample_16_2_1(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
-long dumb_resample_16_2_2(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
-void dumb_resample_get_current_sample_16_1_1(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume, sample_t *dst);
-void dumb_resample_get_current_sample_16_1_2(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
-void dumb_resample_get_current_sample_16_2_1(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
-void dumb_resample_get_current_sample_16_2_2(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
-void dumb_end_resampler_16(DUMB_RESAMPLER *resampler);
-
-void dumb_reset_resampler_8(DUMB_RESAMPLER *resampler, signed char *src, int src_channels, long pos, long start, long end, int quality);
-DUMB_RESAMPLER *dumb_start_resampler_8(signed char *src, int src_channels, long pos, long start, long end, int quality);
-long dumb_resample_8_1_1(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume, float delta);
-long dumb_resample_8_1_2(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
-long dumb_resample_8_2_1(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
-long dumb_resample_8_2_2(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
-void dumb_resample_get_current_sample_8_1_1(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume, sample_t *dst);
-void dumb_resample_get_current_sample_8_1_2(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
-void dumb_resample_get_current_sample_8_2_1(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
-void dumb_resample_get_current_sample_8_2_2(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
-void dumb_end_resampler_8(DUMB_RESAMPLER *resampler);
-
-void dumb_reset_resampler_n(int n, DUMB_RESAMPLER *resampler, void *src, int src_channels, long pos, long start, long end, int quality);
-DUMB_RESAMPLER *dumb_start_resampler_n(int n, void *src, int src_channels, long pos, long start, long end, int quality);
-long dumb_resample_n_1_1(int n, DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume, float delta);
-long dumb_resample_n_1_2(int n, DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
-long dumb_resample_n_2_1(int n, DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
-long dumb_resample_n_2_2(int n, DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
-void dumb_resample_get_current_sample_n_1_1(int n, DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume, sample_t *dst);
-void dumb_resample_get_current_sample_n_1_2(int n, DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
-void dumb_resample_get_current_sample_n_2_1(int n, DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
-void dumb_resample_get_current_sample_n_2_2(int n, DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
-void dumb_end_resampler_n(int n, DUMB_RESAMPLER *resampler);
-
-/* This sets the default panning separation for hard panned formats,
- or for formats with default panning information. This must be set
- before using any readers or loaders, and is not really thread safe. */
-
-extern int dumb_it_default_panning_separation; /* in percent, default 25 */
-
-/* DUH Construction */
-
-DUH *make_duh(
- long length,
- int n_tags,
- const char *const tag[][2],
- int n_signals,
- DUH_SIGTYPE_DESC *desc[],
- sigdata_t *sigdata[]
-);
-
-void duh_set_length(DUH *duh, long length);
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* DUMB_H */
--- a/dumb/include/internal/aldumb.h
+++ /dev/null
@@ -1,27 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * internal/aldumb.h - The internal header file / / \ \
- * for DUMB with Allegro. | < / \_
- * | \/ /\ /
- * \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#ifndef INTERNAL_ALDUMB_H
-#define INTERNAL_ALDUMB_H
-
-
-void _dat_unload_duh(void *duh);
-
-
-#endif /* INTERNAL_DUMB_H */
--- a/dumb/include/internal/barray.h
+++ /dev/null
@@ -1,43 +1,0 @@
-#ifndef _B_ARRAY_H_
-#define _B_ARRAY_H_
-
-#include <stdlib.h>
-
-#ifdef BARRAY_DECORATE
-#undef PASTE
-#undef EVALUATE
-#define PASTE(a,b) a ## b
-#define EVALUATE(a,b) PASTE(a,b)
-#define bit_array_create EVALUATE(BARRAY_DECORATE,_bit_array_create)
-#define bit_array_destroy EVALUATE(BARRAY_DECORATE,_bit_array_destroy)
-#define bit_array_dup EVALUATE(BARRAY_DECORATE,_bit_array_dup)
-#define bit_array_reset EVALUATE(BARRAY_DECORATE,_bit_array_reset)
-#define bit_array_set EVALUATE(BARRAY_DECORATE,_bit_array_set)
-#define bit_array_set_range EVALUATE(BARRAY_DECORATE,_bit_array_set_range)
-#define bit_array_test EVALUATE(BARRAY_DECORATE,_bit_array_test)
-#define bit_array_test_range EVALUATE(BARRAY_DECORATE,_bit_array_test_range)
-#define bit_array_clear EVALUATE(BARRAY_DECORATE,_bit_array_clear)
-#define bit_array_clear_range EVALUATE(BARRAY_DECORATE,_bit_array_clear_range)
-#define bit_array_merge EVALUATE(BARRAY_DECORATE,_bit_array_merge)
-#define bit_array_mask EVALUATE(BARRAY_DECORATE,_bit_array_mask)
-#endif
-
-void * bit_array_create(size_t size);
-void bit_array_destroy(void * array);
-void * bit_array_dup(void * array);
-
-void bit_array_reset(void * array);
-
-void bit_array_set(void * array, size_t bit);
-void bit_array_set_range(void * array, size_t bit, size_t count);
-
-int bit_array_test(void * array, size_t bit);
-int bit_array_test_range(void * array, size_t bit, size_t count);
-
-void bit_array_clear(void * array, size_t bit);
-void bit_array_clear_range(void * array, size_t bit, size_t count);
-
-void bit_array_merge(void * array, void * source, size_t offset);
-void bit_array_mask(void * array, void * source, size_t offset);
-
-#endif
--- a/dumb/include/internal/dumb.h
+++ /dev/null
@@ -1,61 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * internal/dumb.h - DUMB's internal declarations. / / \ \
- * | < / \_
- * This header file provides access to the | \/ /\ /
- * internal structure of DUMB, and is liable \_ / > /
- * to change, mutate or cease to exist at any | \ / /
- * moment. Include it at your own peril. | ' /
- * \__/
- * ...
- *
- * Seriously. You don't need access to anything in this file. All right, you
- * probably do actually. But if you use it, you will be relying on a specific
- * version of DUMB, so please check DUMB_VERSION defined in dumb.h. Please
- * contact the authors so that we can provide a public API for what you need.
- */
-
-#ifndef INTERNAL_DUMB_H
-#define INTERNAL_DUMB_H
-
-
-typedef struct DUH_SIGTYPE_DESC_LINK
-{- struct DUH_SIGTYPE_DESC_LINK *next;
- DUH_SIGTYPE_DESC *desc;
-}
-DUH_SIGTYPE_DESC_LINK;
-
-
-typedef struct DUH_SIGNAL
-{- sigdata_t *sigdata;
- DUH_SIGTYPE_DESC *desc;
-}
-DUH_SIGNAL;
-
-
-struct DUH
-{- long length;
-
- int n_tags;
- char *(*tag)[2];
-
- int n_signals;
- DUH_SIGNAL **signal;
-};
-
-
-DUH_SIGTYPE_DESC *_dumb_get_sigtype_desc(long type);
-
-
-#endif /* INTERNAL_DUMB_H */
--- a/dumb/include/internal/dumbfile.h
+++ /dev/null
@@ -1,13 +1,0 @@
-#ifndef DUMBFILE_H
-#define DUMBFILE_H
-
-#include "../dumb.h"
-
-struct DUMBFILE
-{- const DUMBFILE_SYSTEM *dfs;
- void *file;
- long pos;
-};
-
-#endif // DUMBFILE_H
--- a/dumb/include/internal/fir_resampler.h
+++ /dev/null
@@ -1,18 +1,0 @@
-#ifndef _FIR_RESAMPLER_H_
-#define _FIR_RESAMPLER_H_
-
-void fir_init();
-
-void * fir_resampler_create();
-void fir_resampler_delete(void *);
-void * fir_resampler_dup(void *);
-
-int fir_resampler_get_free_count(void *);
-void fir_resampler_write_sample(void *, short sample);
-void fir_resampler_set_rate( void *, double new_factor );
-int fir_resampler_ready(void *);
-void fir_resampler_clear(void *);
-int fir_resampler_get_sample(void *);
-void fir_resampler_remove_sample(void *);
-
-#endif
--- a/dumb/include/internal/it.h
+++ /dev/null
@@ -1,926 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * internal/it.h - Internal stuff for IT playback / / \ \
- * and MOD/XM/S3M conversion. | < / \_
- * | \/ /\ /
- * This header file provides access to the \_ / > /
- * internal structure of DUMB, and is liable | \ / /
- * to change, mutate or cease to exist at any | ' /
- * moment. Include it at your own peril. \__/
- *
- * ...
- *
- * Seriously. You don't need access to anything in this file. All right, you
- * probably do actually. But if you use it, you will be relying on a specific
- * version of DUMB, so please check DUMB_VERSION defined in dumb.h. Please
- * contact the authors so that we can provide a public API for what you need.
- */
-
-#ifndef INTERNAL_IT_H
-#define INTERNAL_IT_H
-
-
-#define BIT_ARRAY_BULLSHIT
-
-#include <stddef.h>
-
-#include "barray.h"
-#include "tarray.h"
-
-
-/** TO DO: THINK ABOUT THE FOLLOWING:
-
-sigdata->flags & IT_COMPATIBLE_GXX
-
- Bit 5: On = Link Effect G's memory with Effect E/F. Also
- Gxx with an instrument present will cause the
- envelopes to be retriggered. If you change a
- sample on a row with Gxx, it'll adjust the
- frequency of the current note according to:
-
- NewFrequency = OldFrequency * NewC5 / OldC5;
-*/
-
-
-
-/* These #defines are TEMPORARY. They are used to write alternative code to
- * handle ambiguities in the format specification. The correct code in each
- * case will be determined most likely by experimentation.
- */
-//#define STEREO_SAMPLES_COUNT_AS_TWO
-#define INVALID_ORDERS_END_SONG
-#define SUSTAIN_LOOP_OVERRIDES_NORMAL_LOOP
-#define VOLUME_OUT_OF_RANGE_SETS_MAXIMUM
-
-
-
-#define SIGTYPE_IT DUMB_ID('I', 'T', ' ', ' ')-
-#define IT_SIGNATURE DUMB_ID('I', 'M', 'P', 'M')-#define IT_INSTRUMENT_SIGNATURE DUMB_ID('I', 'M', 'P', 'I')-#define IT_SAMPLE_SIGNATURE DUMB_ID('I', 'M', 'P', 'S')-
-// olivier sux
-#define IT_MPTX_SIGNATURE DUMB_ID('X', 'T', 'P', 'M')-#define IT_INSM_SIGNATURE DUMB_ID('M', 'S', 'N', 'I')-
-
-/* This is divided by the tempo times 256 to get the interval between ticks.
- */
-#define TICK_TIME_DIVIDEND (65536 * 5 * 128)
-
-
-
-/* I'm not going to try to explain this, because I didn't derive it very
- * formally ;)
- */
-/* #define AMIGA_DIVISOR ((float)(4.0 * 14317056.0)) */
-/* I believe the following one to be more accurate. */
-//#define AMIGA_DIVISOR ((float)(8.0 * 7159090.5))
-#define AMIGA_CLOCK 3546895
-#define AMIGA_DIVISOR ((float)(16.0 * AMIGA_CLOCK))
-
-
-
-typedef struct IT_MIDI IT_MIDI;
-typedef struct IT_FILTER_STATE IT_FILTER_STATE;
-typedef struct IT_ENVELOPE IT_ENVELOPE;
-typedef struct IT_INSTRUMENT IT_INSTRUMENT;
-typedef struct IT_SAMPLE IT_SAMPLE;
-typedef struct IT_ENTRY IT_ENTRY;
-typedef struct IT_PATTERN IT_PATTERN;
-typedef struct IT_PLAYING_ENVELOPE IT_PLAYING_ENVELOPE;
-typedef struct IT_PLAYING IT_PLAYING;
-typedef struct IT_CHANNEL IT_CHANNEL;
-typedef struct IT_CHECKPOINT IT_CHECKPOINT;
-typedef struct IT_CALLBACKS IT_CALLBACKS;
-
-
-
-struct IT_MIDI
-{- unsigned char SFmacro[16][16]; // read these from 0x120
- unsigned char SFmacrolen[16];
- unsigned short SFmacroz[16]; /* Bitfield; bit 0 set = z in first position */
- unsigned char Zmacro[128][16]; // read these from 0x320
- unsigned char Zmacrolen[128];
-};
-
-
-
-struct IT_FILTER_STATE
-{- sample_t currsample, prevsample;
-};
-
-
-
-#define IT_ENVELOPE_ON 1
-#define IT_ENVELOPE_LOOP_ON 2
-#define IT_ENVELOPE_SUSTAIN_LOOP 4
-#define IT_ENVELOPE_CARRY 8
-#define IT_ENVELOPE_PITCH_IS_FILTER 128
-
-struct IT_ENVELOPE
-{- unsigned char flags;
- unsigned char n_nodes;
- unsigned char loop_start;
- unsigned char loop_end;
- unsigned char sus_loop_start;
- unsigned char sus_loop_end;
- signed char node_y[25];
- unsigned short node_t[25];
-};
-
-
-
-#define NNA_NOTE_CUT 0
-#define NNA_NOTE_CONTINUE 1
-#define NNA_NOTE_OFF 2
-#define NNA_NOTE_FADE 3
-
-#define DCT_OFF 0
-#define DCT_NOTE 1
-#define DCT_SAMPLE 2
-#define DCT_INSTRUMENT 3
-
-#define DCA_NOTE_CUT 0
-#define DCA_NOTE_OFF 1
-#define DCA_NOTE_FADE 2
-
-struct IT_INSTRUMENT
-{- unsigned char name[27];
- unsigned char filename[14];
-
- int fadeout;
-
- IT_ENVELOPE volume_envelope;
- IT_ENVELOPE pan_envelope;
- IT_ENVELOPE pitch_envelope;
-
- unsigned char new_note_action;
- unsigned char dup_check_type;
- unsigned char dup_check_action;
- signed char pp_separation;
- unsigned char pp_centre;
- unsigned char global_volume;
- unsigned char default_pan;
- unsigned char random_volume;
- unsigned char random_pan;
-
- unsigned char filter_cutoff;
- unsigned char filter_resonance;
-
- unsigned char map_note[120];
- unsigned short map_sample[120];
-
- //int output;
-};
-
-
-
-#define IT_SAMPLE_EXISTS 1
-#define IT_SAMPLE_16BIT 2
-#define IT_SAMPLE_STEREO 4
-#define IT_SAMPLE_LOOP 16
-#define IT_SAMPLE_SUS_LOOP 32
-#define IT_SAMPLE_PINGPONG_LOOP 64
-#define IT_SAMPLE_PINGPONG_SUS_LOOP 128
-
-#define IT_VIBRATO_SINE 0
-#define IT_VIBRATO_SAWTOOTH 1
-#define IT_VIBRATO_SQUARE 2
-#define IT_VIBRATO_RANDOM 3
-#define IT_VIBRATO_XM_SQUARE 4
-#define IT_VIBRATO_RAMP_DOWN 5
-#define IT_VIBRATO_RAMP_UP 6
-
-struct IT_SAMPLE
-{- unsigned char name[35];
- unsigned char filename[15];
- unsigned char flags;
- unsigned char global_volume;
- unsigned char default_volume;
- unsigned char default_pan;
- /* default_pan:
- * 0-255 for XM
- * ignored for MOD
- * otherwise, 0-64, and add 128 to enable
- */
-
- long length;
- long loop_start;
- long loop_end;
- long C5_speed;
- long sus_loop_start;
- long sus_loop_end;
-
- unsigned char vibrato_speed;
- unsigned char vibrato_depth;
- unsigned char vibrato_rate;
- unsigned char vibrato_waveform;
-
- signed short finetune;
-
- void *data;
-
- int max_resampling_quality;
-};
-
-
-
-#define IT_ENTRY_NOTE 1
-#define IT_ENTRY_INSTRUMENT 2
-#define IT_ENTRY_VOLPAN 4
-#define IT_ENTRY_EFFECT 8
-
-#define IT_SET_END_ROW(entry) ((entry)->channel = 255)
-#define IT_IS_END_ROW(entry) ((entry)->channel >= DUMB_IT_N_CHANNELS)
-
-#define IT_NOTE_OFF 255
-#define IT_NOTE_CUT 254
-
-#define IT_ENVELOPE_SHIFT 8
-
-#define IT_SURROUND 100
-#define IT_IS_SURROUND(pan) ((pan) > 64)
-#define IT_IS_SURROUND_SHIFTED(pan) ((pan) > 64 << IT_ENVELOPE_SHIFT)
-
-#define IT_SET_SPEED 1
-#define IT_JUMP_TO_ORDER 2
-#define IT_BREAK_TO_ROW 3
-#define IT_VOLUME_SLIDE 4
-#define IT_PORTAMENTO_DOWN 5
-#define IT_PORTAMENTO_UP 6
-#define IT_TONE_PORTAMENTO 7
-#define IT_VIBRATO 8
-#define IT_TREMOR 9
-#define IT_ARPEGGIO 10
-#define IT_VOLSLIDE_VIBRATO 11
-#define IT_VOLSLIDE_TONEPORTA 12
-#define IT_SET_CHANNEL_VOLUME 13
-#define IT_CHANNEL_VOLUME_SLIDE 14
-#define IT_SET_SAMPLE_OFFSET 15
-#define IT_PANNING_SLIDE 16
-#define IT_RETRIGGER_NOTE 17
-#define IT_TREMOLO 18
-#define IT_S 19
-#define IT_SET_SONG_TEMPO 20
-#define IT_FINE_VIBRATO 21
-#define IT_SET_GLOBAL_VOLUME 22
-#define IT_GLOBAL_VOLUME_SLIDE 23
-#define IT_SET_PANNING 24
-#define IT_PANBRELLO 25
-#define IT_MIDI_MACRO 26 //see MIDI.TXT
-
-/* Some effects needed for XM compatibility */
-#define IT_XM_PORTAMENTO_DOWN 27
-#define IT_XM_PORTAMENTO_UP 28
-#define IT_XM_FINE_VOLSLIDE_DOWN 29
-#define IT_XM_FINE_VOLSLIDE_UP 30
-#define IT_XM_RETRIGGER_NOTE 31
-#define IT_XM_KEY_OFF 32
-#define IT_XM_SET_ENVELOPE_POSITION 33
-
-/* More effects needed for PTM compatibility */
-#define IT_PTM_NOTE_SLIDE_DOWN 34
-#define IT_PTM_NOTE_SLIDE_UP 35
-#define IT_PTM_NOTE_SLIDE_DOWN_RETRIG 36
-#define IT_PTM_NOTE_SLIDE_UP_RETRIG 37
-
-/* More effects needed for OKT compatibility */
-#define IT_OKT_NOTE_SLIDE_DOWN 38
-#define IT_OKT_NOTE_SLIDE_DOWN_ROW 39
-#define IT_OKT_NOTE_SLIDE_UP 40
-#define IT_OKT_NOTE_SLIDE_UP_ROW 41
-#define IT_OKT_ARPEGGIO_3 42
-#define IT_OKT_ARPEGGIO_4 43
-#define IT_OKT_ARPEGGIO_5 44
-#define IT_OKT_VOLUME_SLIDE_DOWN 45
-#define IT_OKT_VOLUME_SLIDE_UP 46
-
-#define IT_N_EFFECTS 47
-
-/* These represent the top nibble of the command value. */
-#define IT_S_SET_FILTER 0 /* Greyed out in IT... */
-#define IT_S_SET_GLISSANDO_CONTROL 1 /* Greyed out in IT... */
-#define IT_S_FINETUNE 2 /* Greyed out in IT... */
-#define IT_S_SET_VIBRATO_WAVEFORM 3
-#define IT_S_SET_TREMOLO_WAVEFORM 4
-#define IT_S_SET_PANBRELLO_WAVEFORM 5
-#define IT_S_FINE_PATTERN_DELAY 6
-#define IT_S7 7
-#define IT_S_SET_PAN 8
-#define IT_S_SET_SURROUND_SOUND 9
-#define IT_S_SET_HIGH_OFFSET 10
-#define IT_S_PATTERN_LOOP 11
-#define IT_S_DELAYED_NOTE_CUT 12
-#define IT_S_NOTE_DELAY 13
-#define IT_S_PATTERN_DELAY 14
-#define IT_S_SET_MIDI_MACRO 15
-
-/*
-S0x Set filter
-S1x Set glissando control
-S2x Set finetune
-
-
-S3x Set vibrato waveform to type x
-S4x Set tremelo waveform to type x
-S5x Set panbrello waveform to type x
- Waveforms for commands S3x, S4x and S5x:
- 0: Sine wave
- 1: Ramp down
- 2: Square wave
- 3: Random wave
-S6x Pattern delay for x ticks
-S70 Past note cut
-S71 Past note off
-S72 Past note fade
-S73 Set NNA to note cut
-S74 Set NNA to continue
-S75 Set NNA to note off
-S76 Set NNA to note fade
-S77 Turn off volume envelope
-S78 Turn on volume envelope
-S79 Turn off panning envelope
-S7A Turn on panning envelope
-S7B Turn off pitch envelope
-S7C Turn on pitch envelope
-S8x Set panning position
-S91 Set surround sound
-SAy Set high value of sample offset yxx00h
-SB0 Set loopback point
-SBx Loop x times to loopback point
-SCx Note cut after x ticks
-SDx Note delay for x ticks
-SEx Pattern delay for x rows
-SFx Set parameterised MIDI Macro
-*/
-
-struct IT_ENTRY
-{- unsigned char channel; /* End of row if channel >= DUMB_IT_N_CHANNELS */
- unsigned char mask;
- unsigned char note;
- unsigned char instrument;
- unsigned char volpan;
- unsigned char effect;
- unsigned char effectvalue;
-};
-
-
-
-struct IT_PATTERN
-{- int n_rows;
- int n_entries;
- IT_ENTRY *entry;
-};
-
-
-
-#define IT_STEREO 1
-#define IT_USE_INSTRUMENTS 4
-#define IT_LINEAR_SLIDES 8 /* If not set, use Amiga slides */
-#define IT_OLD_EFFECTS 16
-#define IT_COMPATIBLE_GXX 32
-
-/* Make sure IT_WAS_AN_XM and IT_WAS_A_MOD aren't set accidentally */
-#define IT_REAL_FLAGS 63
-
-#define IT_WAS_AN_XM 64 /* Set for both XMs and MODs */
-#define IT_WAS_A_MOD 128
-
-#define IT_WAS_AN_S3M 256
-
-#define IT_WAS_A_PTM 512
-
-#define IT_WAS_A_669 1024
-
-#define IT_WAS_AN_OKT 2048
-
-#define IT_WAS_AN_STM 4096
-
-#define IT_WAS_PROCESSED 8192 /* Will be set the first time a sigdata passes through a sigrenderer */
-
-#define IT_ORDER_END 255
-#define IT_ORDER_SKIP 254
-
-struct DUMB_IT_SIGDATA
-{- unsigned char name[65];
-
- unsigned char *song_message;
-
- int n_orders;
- int n_instruments;
- int n_samples;
- int n_patterns;
- int n_pchannels;
-
- int flags;
-
- int global_volume;
- int mixing_volume;
- int speed;
- int tempo;
- int pan_separation;
-
- unsigned char channel_pan[DUMB_IT_N_CHANNELS];
- unsigned char channel_volume[DUMB_IT_N_CHANNELS];
-
- unsigned char *order;
- unsigned char restart_position; /* for XM compatiblity */
-
- IT_INSTRUMENT *instrument;
- IT_SAMPLE *sample;
- IT_PATTERN *pattern;
-
- IT_MIDI *midi;
-
- IT_CHECKPOINT *checkpoint;
-};
-
-
-
-struct IT_PLAYING_ENVELOPE
-{- int next_node;
- int tick;
- int value;
-};
-
-
-
-#define IT_PLAYING_BACKGROUND 1
-#define IT_PLAYING_SUSTAINOFF 2
-#define IT_PLAYING_FADING 4
-#define IT_PLAYING_DEAD 8
-#define IT_PLAYING_REVERSE 16
-
-struct IT_PLAYING
-{- int flags;
-
- int resampling_quality;
-
- IT_CHANNEL *channel;
- IT_SAMPLE *sample;
- IT_INSTRUMENT *instrument;
- IT_INSTRUMENT *env_instrument;
-
- unsigned short sampnum;
- unsigned char instnum;
-
- unsigned char declick_stage;
-
- float float_volume[2];
- float ramp_volume[2];
- float ramp_delta[2];
-
- unsigned char channel_volume;
-
- unsigned char volume;
- unsigned short pan;
-
- signed char volume_offset, panning_offset;
-
- unsigned char note;
-
- unsigned char enabled_envelopes;
-
- unsigned char filter_cutoff;
- unsigned char filter_resonance;
-
- unsigned short true_filter_cutoff; /* These incorporate the filter envelope, and will not */
- unsigned char true_filter_resonance; /* be changed if they would be set to 127<<8 and 0. */
-
- unsigned char vibrato_speed;
- unsigned char vibrato_depth;
- unsigned char vibrato_n; /* May be specified twice: volpan & effect. */
- unsigned char vibrato_time;
- unsigned char vibrato_waveform;
-
- unsigned char tremolo_speed;
- unsigned char tremolo_depth;
- unsigned char tremolo_time;
- unsigned char tremolo_waveform;
-
- unsigned char panbrello_speed;
- unsigned char panbrello_depth;
- unsigned char panbrello_time;
- unsigned char panbrello_waveform;
- signed char panbrello_random;
-
- unsigned char sample_vibrato_time;
- unsigned char sample_vibrato_waveform;
- int sample_vibrato_depth; /* Starts at rate?0:depth, increases by rate */
-
- int slide;
- float delta;
- int finetune;
-
- IT_PLAYING_ENVELOPE volume_envelope;
- IT_PLAYING_ENVELOPE pan_envelope;
- IT_PLAYING_ENVELOPE pitch_envelope;
-
- int fadeoutcount;
-
- IT_FILTER_STATE filter_state[2]; /* Left and right */
-
- DUMB_RESAMPLER resampler;
-
- /* time_lost is used to emulate Impulse Tracker's sample looping
- * characteristics. When time_lost is added to pos, the result represents
- * the position in the theoretical version of the sample where all loops
- * have been expanded. If this is stored, the resampling helpers will
- * safely convert it for use with new loop boundaries. The situation is
- * slightly more complicated if dir == -1 when the change takes place; we
- * must reflect pos off the loop end point and set dir to 1 before
- * proceeding.
- */
- long time_lost;
-
- //int output;
-};
-
-
-
-#define IT_CHANNEL_MUTED 1
-
-#define IT_ENV_VOLUME 1
-#define IT_ENV_PANNING 2
-#define IT_ENV_PITCH 4
-
-struct IT_CHANNEL
-{- int flags;
-
- unsigned char volume;
- signed char volslide;
- signed char xm_volslide;
- signed char panslide;
-
- /* xm_volslide is used for volume slides done in the volume column in an
- * XM file, since it seems the volume column slide is applied first,
- * followed by clamping, followed by the effects column slide. IT does
- * not exhibit this behaviour, so xm_volslide is maintained at zero.
- */
-
- unsigned char pan;
- unsigned short truepan;
-
- unsigned char channelvolume;
- signed char channelvolslide;
-
- unsigned char instrument;
- unsigned char note;
-
- unsigned char SFmacro;
-
- unsigned char filter_cutoff;
- unsigned char filter_resonance;
-
- unsigned char key_off_count;
- unsigned char note_cut_count;
- unsigned char note_delay_count;
- IT_ENTRY *note_delay_entry;
-
- unsigned char new_note_action;
-
- unsigned char const* arpeggio_table;
- signed char arpeggio_offsets[3];
-
- int arpeggio_shift;
- unsigned char retrig;
- unsigned char xm_retrig;
- int retrig_tick;
-
- unsigned char tremor;
- unsigned char tremor_time; /* Bit 6 set if note on; bit 7 set if tremor active. */
-
- unsigned char vibrato_waveform;
- unsigned char tremolo_waveform;
- unsigned char panbrello_waveform;
-
- int portamento;
- int toneporta;
- int toneslide;
- unsigned char toneslide_tick, last_toneslide_tick, ptm_toneslide, ptm_last_toneslide, okt_toneslide;
- unsigned char destnote;
- unsigned char toneslide_retrig;
-
- unsigned char glissando;
-
- /** WARNING - for neatness, should one or both of these be in the IT_PLAYING struct? */
- unsigned short sample;
- unsigned char truenote;
-
- unsigned char midi_state;
-
- signed char lastvolslide;
- unsigned char lastDKL;
- unsigned char lastEF; /* Doubles as last portamento up for XM files */
- unsigned char lastG;
- unsigned char lastHspeed;
- unsigned char lastHdepth;
- unsigned char lastRspeed;
- unsigned char lastRdepth;
- unsigned char lastYspeed;
- unsigned char lastYdepth;
- unsigned char lastI;
- unsigned char lastJ; /* Doubles as last portamento down for XM files */
- unsigned char lastN;
- unsigned char lastO;
- unsigned char high_offset;
- unsigned char lastP;
- unsigned char lastQ;
- unsigned char lastS;
- unsigned char pat_loop_row;
- unsigned char pat_loop_count;
- unsigned char pat_loop_end_row; /* Used to catch infinite pattern loops */
- unsigned char lastW;
-
- unsigned char xm_lastE1;
- unsigned char xm_lastE2;
- unsigned char xm_lastEA;
- unsigned char xm_lastEB;
- unsigned char xm_lastX1;
- unsigned char xm_lastX2;
-
- unsigned char inv_loop_delay;
- unsigned char inv_loop_speed;
- int inv_loop_offset;
-
- IT_PLAYING *playing;
-
-#ifdef BIT_ARRAY_BULLSHIT
- void * played_patjump;
- int played_patjump_order;
-#endif
-
- //int output;
-};
-
-
-
-struct DUMB_IT_SIGRENDERER
-{- DUMB_IT_SIGDATA *sigdata;
-
- int n_channels;
-
- int resampling_quality;
-
- unsigned char globalvolume;
- signed char globalvolslide;
-
- int tempo;
- signed char temposlide;
-
- IT_CHANNEL channel[DUMB_IT_N_CHANNELS];
-
- IT_PLAYING *playing[DUMB_IT_N_NNA_CHANNELS];
-
- int tick;
- int speed;
- int rowcount;
-
- int order; /* Set to -1 if the song is terminated by a callback. */
- int row;
- int processorder;
- int processrow;
- int breakrow;
-
- int restart_position;
-
- int n_rows;
-
- IT_ENTRY *entry_start;
- IT_ENTRY *entry;
- IT_ENTRY *entry_end;
-
- long time_left; /* Time before the next tick is processed */
- int sub_time_left;
-
- DUMB_CLICK_REMOVER **click_remover;
-
- IT_CALLBACKS *callbacks;
-
-#ifdef BIT_ARRAY_BULLSHIT
- /* bit array, which rows are played, only checked by pattern break or loop commands */
- void * played;
-
- /*
- Loop indicator for internal processes, may also be useful for external processes
- 0 - Not looped
- 1 - Looped
- -1 - Continued past loop
- */
- int looped;
-
- /*
- Kept until looped
- */
- LONG_LONG time_played;
-
- void * row_timekeeper;
-#endif
-
- long gvz_time;
- int gvz_sub_time;
-
- int ramp_style;
-
- //int max_output;
-};
-
-
-
-struct IT_CHECKPOINT
-{- IT_CHECKPOINT *next;
- long time;
- DUMB_IT_SIGRENDERER *sigrenderer;
-};
-
-
-
-struct IT_CALLBACKS
-{- int (*loop)(void *data);
- void *loop_data;
- /* Return 1 to prevent looping; the music will terminate abruptly. If you
- * want to make the music stop but allow samples to fade (beware, as they
- * might not fade at all!), use dumb_it_sr_set_speed() and set the speed
- * to 0. Note that xm_speed_zero() will not be called if you set the
- * speed manually, and also that this will work for IT and S3M files even
- * though the music can't stop in this way by itself.
- */
-
- int (*xm_speed_zero)(void *data);
- void *xm_speed_zero_data;
- /* Return 1 to terminate the mod, without letting samples fade. */
-
- int (*midi)(void *data, int channel, unsigned char byte);
- void *midi_data;
- /* Return 1 to prevent DUMB from subsequently interpreting the MIDI bytes
- * itself. In other words, return 1 if the Zxx macros in an IT file are
- * controlling filters and shouldn't be.
- */
-
- int (*global_volume_zero)(void *data);
- void *global_volume_zero_data;
- /* Return 1 to terminate the module when global volume is set to zero. */
-};
-
-
-
-void _dumb_it_end_sigrenderer(sigrenderer_t *sigrenderer);
-void _dumb_it_unload_sigdata(sigdata_t *vsigdata);
-
-extern DUH_SIGTYPE_DESC _dumb_sigtype_it;
-
-
-
-#define XM_APPREGIO 0
-#define XM_PORTAMENTO_UP 1
-#define XM_PORTAMENTO_DOWN 2
-#define XM_TONE_PORTAMENTO 3
-#define XM_VIBRATO 4
-#define XM_VOLSLIDE_TONEPORTA 5
-#define XM_VOLSLIDE_VIBRATO 6
-#define XM_TREMOLO 7
-#define XM_SET_PANNING 8
-#define XM_SAMPLE_OFFSET 9
-#define XM_VOLUME_SLIDE 10 /* A */
-#define XM_POSITION_JUMP 11 /* B */
-#define XM_SET_CHANNEL_VOLUME 12 /* C */
-#define XM_PATTERN_BREAK 13 /* D */
-#define XM_E 14 /* E */
-#define XM_SET_TEMPO_BPM 15 /* F */
-#define XM_SET_GLOBAL_VOLUME 16 /* G */
-#define XM_GLOBAL_VOLUME_SLIDE 17 /* H */
-#define XM_KEY_OFF 20 /* K (undocumented) */
-#define XM_SET_ENVELOPE_POSITION 21 /* L */
-#define XM_PANNING_SLIDE 25 /* P */
-#define XM_MULTI_RETRIG 27 /* R */
-#define XM_TREMOR 29 /* T */
-#define XM_X 33 /* X */
-#define XM_N_EFFECTS (10+26)
-
-#define XM_E_SET_FILTER 0x0
-#define XM_E_FINE_PORTA_UP 0x1
-#define XM_E_FINE_PORTA_DOWN 0x2
-#define XM_E_SET_GLISSANDO_CONTROL 0x3
-#define XM_E_SET_VIBRATO_CONTROL 0x4
-#define XM_E_SET_FINETUNE 0x5
-#define XM_E_SET_LOOP 0x6
-#define XM_E_SET_TREMOLO_CONTROL 0x7
-#define XM_E_SET_PANNING 0x8
-#define XM_E_RETRIG_NOTE 0x9
-#define XM_E_FINE_VOLSLIDE_UP 0xA
-#define XM_E_FINE_VOLSLIDE_DOWN 0xB
-#define XM_E_NOTE_CUT 0xC
-#define XM_E_NOTE_DELAY 0xD
-#define XM_E_PATTERN_DELAY 0xE
-#define XM_E_SET_MIDI_MACRO 0xF
-
-#define XM_X_EXTRAFINE_PORTA_UP 1
-#define XM_X_EXTRAFINE_PORTA_DOWN 2
-
-/* To make my life a bit simpler during conversion, effect E:xy is converted
- * to effect number EBASE+x:y. The same applies to effect X, and IT's S. That
- * way, these effects can be manipulated like regular effects.
- */
-#define EBASE (XM_N_EFFECTS)
-#define XBASE (EBASE+16)
-#define SBASE (IT_N_EFFECTS)
-
-#define EFFECT_VALUE(x, y) (((x)<<4)|(y))
-#define HIGH(v) ((v)>>4)
-#define LOW(v) ((v)&0x0F)
-#define SET_HIGH(v, x) v = (((x)<<4)|((v)&0x0F))
-#define SET_LOW(v, y) v = (((v)&0xF0)|(y))
-#define BCD_TO_NORMAL(v) (HIGH(v)*10+LOW(v))
-
-
-
-#if 0
-unsigned char **_dumb_malloc2(int w, int h);
-void _dumb_free2(unsigned char **line);
-#endif
-
-void _dumb_it_xm_convert_effect(int effect, int value, IT_ENTRY *entry, int mod);
-int _dumb_it_fix_invalid_orders(DUMB_IT_SIGDATA *sigdata);
-
-
-#define PTM_APPREGIO 0
-#define PTM_PORTAMENTO_UP 1
-#define PTM_PORTAMENTO_DOWN 2
-#define PTM_TONE_PORTAMENTO 3
-#define PTM_VIBRATO 4
-#define PTM_VOLSLIDE_TONEPORTA 5
-#define PTM_VOLSLIDE_VIBRATO 6
-#define PTM_TREMOLO 7
-#define PTM_SAMPLE_OFFSET 9
-#define PTM_VOLUME_SLIDE 10 /* A */
-#define PTM_POSITION_JUMP 11 /* B */
-#define PTM_SET_CHANNEL_VOLUME 12 /* C */
-#define PTM_PATTERN_BREAK 13 /* D */
-#define PTM_E 14 /* E */
-#define PTM_SET_TEMPO_BPM 15 /* F */
-#define PTM_SET_GLOBAL_VOLUME 16 /* G */
-#define PTM_RETRIGGER 17 /* H */
-#define PTM_FINE_VIBRATO 18 /* I */
-#define PTM_NOTE_SLIDE_UP 19 /* J */
-#define PTM_NOTE_SLIDE_DOWN 20 /* K */
-#define PTM_NOTE_SLIDE_UP_RETRIG 21 /* L */
-#define PTM_NOTE_SLIDE_DOWN_RETRIG 22 /* M */
-#define PTM_N_EFFECTS 23
-
-#define PTM_E_FINE_PORTA_DOWN 0x1
-#define PTM_E_FINE_PORTA_UP 0x2
-#define PTM_E_SET_VIBRATO_CONTROL 0x4
-#define PTM_E_SET_FINETUNE 0x5
-#define PTM_E_SET_LOOP 0x6
-#define PTM_E_SET_TREMOLO_CONTROL 0x7
-#define PTM_E_SET_PANNING 0x8
-#define PTM_E_RETRIG_NOTE 0x9
-#define PTM_E_FINE_VOLSLIDE_UP 0xA
-#define PTM_E_FINE_VOLSLIDE_DOWN 0xB
-#define PTM_E_NOTE_CUT 0xC
-#define PTM_E_NOTE_DELAY 0xD
-#define PTM_E_PATTERN_DELAY 0xE
-
-/* To make my life a bit simpler during conversion, effect E:xy is converted
- * to effect number EBASE+x:y. The same applies to effect X, and IT's S. That
- * way, these effects can be manipulated like regular effects.
- */
-#define PTM_EBASE (PTM_N_EFFECTS)
-
-void _dumb_it_ptm_convert_effect(int effect, int value, IT_ENTRY *entry);
-
-long _dumb_it_read_sample_data_adpcm4(IT_SAMPLE *sample, DUMBFILE *f);
-
-void _dumb_it_interleave_stereo_sample(IT_SAMPLE *sample);
-
-/* Calling either of these is optional */
-void _dumb_init_cubic();
-#ifdef _USE_SSE
-void _dumb_init_sse();
-#endif
-
-#endif /* INTERNAL_IT_H */
--- a/dumb/include/internal/lpc.h
+++ /dev/null
@@ -1,24 +1,0 @@
-/********************************************************************
- * *
- * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
- * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
- * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
- * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
- * *
- * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 *
- * by the Xiph.Org Foundation http://www.xiph.org/ *
- * *
- ********************************************************************
-
- function: LPC low level routines
- last mod: $Id: lpc.h 16037 2009-05-26 21:10:58Z xiphmont $
-
- ********************************************************************/
-
-#ifndef _V_LPC_H_
-#define _V_LPC_H_
-
-struct DUMB_IT_SIGDATA;
-extern void dumb_it_add_lpc(struct DUMB_IT_SIGDATA *sigdata);
-
-#endif
--- a/dumb/include/internal/resampler.h
+++ /dev/null
@@ -1,60 +1,0 @@
-#ifndef _RESAMPLER_H_
-#define _RESAMPLER_H_
-
-// Ugglay
-#ifdef RESAMPLER_DECORATE
-#undef PASTE
-#undef EVALUATE
-#define PASTE(a,b) a ## b
-#define EVALUATE(a,b) PASTE(a,b)
-#define resampler_init EVALUATE(RESAMPLER_DECORATE,_resampler_init)
-#define resampler_create EVALUATE(RESAMPLER_DECORATE,_resampler_create)
-#define resampler_delete EVALUATE(RESAMPLER_DECORATE,_resampler_delete)
-#define resampler_dup EVALUATE(RESAMPLER_DECORATE,_resampler_dup)
-#define resampler_dup_inplace EVALUATE(RESAMPLER_DECORATE,_resampler_dup_inplace)
-#define resampler_set_quality EVALUATE(RESAMPLER_DECORATE,_resampler_set_quality)
-#define resampler_get_free_count EVALUATE(RESAMPLER_DECORATE,_resampler_get_free_count)
-#define resampler_write_sample EVALUATE(RESAMPLER_DECORATE,_resampler_write_sample)
-#define resampler_write_sample_fixed EVALUATE(RESAMPLER_DECORATE,_resampler_write_sample_fixed)
-#define resampler_set_rate EVALUATE(RESAMPLER_DECORATE,_resampler_set_rate)
-#define resampler_ready EVALUATE(RESAMPLER_DECORATE,_resampler_ready)
-#define resampler_clear EVALUATE(RESAMPLER_DECORATE,_resampler_clear)
-#define resampler_get_sample_count EVALUATE(RESAMPLER_DECORATE,_resampler_get_sample_count)
-#define resampler_get_sample EVALUATE(RESAMPLER_DECORATE,_resampler_get_sample)
-#define resampler_get_sample_float EVALUATE(RESAMPLER_DECORATE,_resampler_get_sample_float)
-#define resampler_remove_sample EVALUATE(RESAMPLER_DECORATE,_resampler_remove_sample)
-#endif
-
-void resampler_init(void);
-
-void * resampler_create(void);
-void resampler_delete(void *);
-void * resampler_dup(const void *);
-void resampler_dup_inplace(void *, const void *);
-
-enum
-{- RESAMPLER_QUALITY_MIN = 0,
- RESAMPLER_QUALITY_ZOH = 0,
- RESAMPLER_QUALITY_BLEP = 1,
- RESAMPLER_QUALITY_LINEAR = 2,
- RESAMPLER_QUALITY_BLAM = 3,
- RESAMPLER_QUALITY_CUBIC = 4,
- RESAMPLER_QUALITY_SINC = 5,
- RESAMPLER_QUALITY_MAX = 5
-};
-
-void resampler_set_quality(void *, int quality);
-
-int resampler_get_free_count(void *);
-void resampler_write_sample(void *, short sample);
-void resampler_write_sample_fixed(void *, int sample, unsigned char depth);
-void resampler_set_rate( void *, double new_factor );
-int resampler_ready(void *);
-void resampler_clear(void *);
-int resampler_get_sample_count(void *);
-int resampler_get_sample(void *);
-float resampler_get_sample_float(void *);
-void resampler_remove_sample(void *, int decay);
-
-#endif
--- a/dumb/include/internal/riff.h
+++ /dev/null
@@ -1,24 +1,0 @@
-#ifndef RIFF_H
-#define RIFF_H
-
-struct riff;
-
-struct riff_chunk
-{- unsigned type;
- long offset;
- unsigned size;
- struct riff * nested;
-};
-
-struct riff
-{- unsigned type;
- unsigned chunk_count;
- struct riff_chunk * chunks;
-};
-
-struct riff * riff_parse( DUMBFILE * f, long offset, long size, unsigned proper );
-void riff_free( struct riff * );
-
-#endif
--- a/dumb/include/internal/stack_alloc.h
+++ /dev/null
@@ -1,113 +1,0 @@
-/* Copyright (C) 2002 Jean-Marc Valin */
-/**
- @file stack_alloc.h
- @brief Temporary memory allocation on stack
-*/
-/*
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
-
- - Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
-
- - Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
-
- - Neither the name of the Xiph.org Foundation nor the names of its
- contributors may be used to endorse or promote products derived from
- this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#ifndef STACK_ALLOC_H
-#define STACK_ALLOC_H
-
-#ifdef WIN32
-# include <malloc.h>
-#else
-# ifdef HAVE_ALLOCA_H
-# include <alloca.h>
-# else
-# include <stdlib.h>
-# endif
-#endif
-
-/**
- * @def ALIGN(stack, size)
- *
- * Aligns the stack to a 'size' boundary
- *
- * @param stack Stack
- * @param size New size boundary
- */
-
-/**
- * @def PUSH(stack, size, type)
- *
- * Allocates 'size' elements of type 'type' on the stack
- *
- * @param stack Stack
- * @param size Number of elements
- * @param type Type of element
- */
-
-/**
- * @def VARDECL(var)
- *
- * Declare variable on stack
- *
- * @param var Variable to declare
- */
-
-/**
- * @def ALLOC(var, size, type)
- *
- * Allocate 'size' elements of 'type' on stack
- *
- * @param var Name of variable to allocate
- * @param size Number of elements
- * @param type Type of element
- */
-
-#ifdef ENABLE_VALGRIND
-
-#include <valgrind/memcheck.h>
-
-#define ALIGN(stack, size) ((stack) += ((size) - (long)(stack)) & ((size) - 1))
-
-#define PUSH(stack, size, type) (VALGRIND_MAKE_NOACCESS(stack, 1000),ALIGN((stack),sizeof(type)),VALGRIND_MAKE_WRITABLE(stack, ((size)*sizeof(type))),(stack)+=((size)*sizeof(type)),(type*)((stack)-((size)*sizeof(type))))
-
-#else
-
-#define ALIGN(stack, size) ((stack) += ((size) - (long)(stack)) & ((size) - 1))
-
-#define PUSH(stack, size, type) (ALIGN((stack),sizeof(type)),(stack)+=((size)*sizeof(type)),(type*)((stack)-((size)*sizeof(type))))
-
-#endif
-
-#if defined(VAR_ARRAYS)
-#define VARDECL(var)
-#define ALLOC(var, size, type) type var[size]
-#elif defined(USE_ALLOCA)
-#define VARDECL(var) var
-#define ALLOC(var, size, type) var = alloca(sizeof(type)*(size))
-#else
-#define VARDECL(var) var
-#define ALLOC(var, size, type) var = PUSH(stack, size, type)
-#endif
-
-
-#endif
--- a/dumb/include/internal/tarray.h
+++ /dev/null
@@ -1,31 +1,0 @@
-#ifndef _T_ARRAY_H_
-#define _T_ARRAY_H_
-
-#include <stdlib.h>
-
-#ifndef LONG_LONG
-#if defined __GNUC__ || defined __INTEL_COMPILER || defined __MWERKS__
-#define LONG_LONG long long
-#elif defined _MSC_VER || defined __WATCOMC__
-#define LONG_LONG __int64
-#elif defined __sgi
-#define LONG_LONG long long
-#else
-#error 64-bit integer type unknown
-#endif
-#endif
-
-void * timekeeping_array_create(size_t size);
-void timekeeping_array_destroy(void * array);
-void * timekeeping_array_dup(void * array);
-
-void timekeeping_array_reset(void * array, size_t loop_start);
-
-void timekeeping_array_push(void * array, size_t index, LONG_LONG time);
-void timekeeping_array_bump(void * array, size_t index);
-
-unsigned int timekeeping_array_get_count(void * array, size_t index);
-
-LONG_LONG timekeeping_array_get_item(void * array, size_t index);
-
-#endif
--- a/dumb/licence.txt
+++ /dev/null
@@ -1,87 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * licence.txt - Conditions for use of DUMB. / / \ \
- * | < / \_
- * If you do not agree to these terms, please | \/ /\ /
- * do not use DUMB. \_ / > /
- * | \ / /
- * Information in [brackets] is provided to aid | ' /
- * interpretation of the licence. \__/
- */
-
-
-Dynamic Universal Music Bibliotheque, Version 0.9.3
-
-Copyright (C) 2001-2005 Ben Davis, Robert J Ohannessian and Julien Cugniere
-
-This software is provided 'as-is', without any express or implied warranty.
-In no event shall the authors be held liable for any damages arising from the
-use of this software.
-
-Permission is granted to anyone to use this software for any purpose,
-including commercial applications, and to alter it and redistribute it
-freely, subject to the following restrictions:
-
-1. The origin of this software must not be misrepresented; you must not claim
- that you wrote the original software. If you use this software in a
- product, you are requested to acknowledge its use in the product
- documentation, along with details on where to get an unmodified version of
- this software, but this is not a strict requirement.
-
- [Note that the above point asks for a link to DUMB, not just a mention.
- Googling for DUMB doesn't help much! The URL is "http://dumb.sf.net/".]
-
- [The link was originally strictly required. This was changed for two
- reasons. Firstly, if many projects request an acknowledgement, the list of
- acknowledgements can become quite unmanageable. Secondly, DUMB was placing
- a restriction on the code using it, preventing people from using the GNU
- General Public Licence which disallows any such restrictions. See
- http://www.gnu.org/philosophy/bsd.html for more information on this
- subject. However, if DUMB plays a significant part in your project, we do
- urge you to acknowledge its use.]
-
-2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
-
-3. This notice may not be removed from or altered in any source distribution.
-
-4. If you are using the Program in someone else's bedroom on any Monday at
- 3:05 pm, you are not allowed to modify the Program for ten minutes. [This
- clause provided by Inphernic; every licence should contain at least one
- clause, the reasoning behind which is far from obvious.]
-
-5. Users who wish to use DUMB for the specific purpose of playing music are
- required to feed their dog on every full moon (if deemed appropriate).
- [This clause provided by Allefant, who couldn't remember what Inphernic's
- clause was.]
-
-6. No clause in this licence shall prevent this software from being depended
- upon by a product licensed under the GNU General Public Licence. If such a
- clause is deemed to exist, Debian, then it shall be respected in spirit as
- far as possible and all other clauses shall continue to apply in full
- force.
-
-8. Take the number stated as introducing this clause. Multiply it by two,
- then subtract four. Now insert a '+' between the two digits and evaluate
- the resulting sum. Call the result 'x'. If you have not yet concluded that
- every numbered clause in this licence whose ordinal number is strictly
- greater than 'x' (with the exception of the present clause) is null and
- void, Debian, then you are hereby informed that laughter is good for one's
- health and you are warmly suggested to do it. By the way, Clauses 4, 5 and
- 6 are null and void. Incidentally, I like Kubuntu. The work you guys do is
- awesome. (Lawyers, on the other hand ...)
-
-We regret that we cannot provide any warranty, not even the implied warranty
-of merchantability or fitness for a particular purpose.
-
-Some files generated or copied by automake, autoconf and friends are
-available in an extra download. These fall under separate licences but are
-all free to distribute. Please check their licences as necessary.
--- a/dumb/readme.txt
+++ /dev/null
@@ -1,541 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readme.txt - General information on DUMB. / / \ \
- * | < / \_
- * | \/ /\ /
- * \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-
-********************
-*** Introduction ***
-********************
-
-
-Thank you for downloading DUMB v0.9.3! You should have the following
-documentation:
-
- readme.txt - This file
- licence.txt - Conditions for the use of this software
- release.txt - Release notes and changes for this and past releases
- docs/
- howto.txt - Step-by-step instructions on adding DUMB to your project
- faq.txt - Frequently asked questions and answers to them
- dumb.txt - DUMB library reference
- deprec.txt - Information about deprecated parts of the API
- ptr.txt - Quick introduction to pointers for those who need it
- fnptr.txt - Explanation of function pointers for those who need it
- modplug.txt - Our official position regarding ModPlug Tracker
-
-This file will help you get DUMB set up. If you have not yet done so, please
-read licence.txt and release.txt before proceeding. After you've got DUMB set
-up, please refer to the files in the docs/ directory at your convenience. I
-recommend you start with howto.txt.
-
-
-****************
-*** Features ***
-****************
-
-
-Here is the statutory feature list:
-
-- Freeware
-
-- Supports playback of IT, XM, S3M and MOD files
-
-- Faithful to the original trackers, especially IT; if it plays your module
- wrongly, please tell me so I can fix the bug! (But please don't complain
- about differences between DUMB and ModPlug Tracker; see docs/modplug.txt)
-
-- Accurate support for low-pass resonant filters for IT files
-
-- Very accurate timing and pitching; completely deterministic playback
-
-- Click removal
-
-- Facility to embed music files in other files (e.g. Allegro datafiles)
-
-- Three resampling quality settings: aliasing, linear interpolation and cubic
- interpolation
-
-- Number of samples playing at once can be limited to reduce processor usage,
- but samples will come back in when other louder ones stop
-
-- All notes will be present and correct even if you start a piece of music in
- the middle
-
-- Option to take longer loading but seek fast to any point before the music
- first loops (seeking time increases beyond this point)
-
-- Audio generated can be used in any way; DUMB does not necessarily send it
- straight to a sound output system
-
-- Can be used with Allegro, can be used without (if you'd like to help make
- DUMB more approachable to people who aren't using Allegro, please contact
- me)
-
-- Makefile provided for DJGPP, MinGW, Linux, BeOS and Mac OS X
-
-- Project files provided for MSVC 6
-
-- Autotools-based configure script available as a separate download for
- masochists
-
-- Code should port anywhere that has a 32-bit C compiler; instructions on
- compiling it manually are available further down
-
-
-*********************
-*** What you need ***
-*********************
-
-
-To use DUMB, you need a 32-bit C compiler (GCC and MSVC are fine). If you
-have Allegro, DUMB can integrate with its audio streams and datafiles, making
-your life easier. If you do not wish to use Allegro, you will have to do some
-work to get music playing back. The 'dumbplay' example program requires
-Allegro.
-
- Allegro - http://alleg.sf.net/
-
-
-**********************************************
-*** How to set DUMB up with DJGPP or MinGW ***
-**********************************************
-
-
-You should have got the .zip version. If for some reason you got the .tar.gz
-version instead, you may have to convert make/config.bat to DOS text file
-format. WinZip does this automatically by default. Otherwise, loading it into
-MS EDIT and saving it again should do the trick (but do not do this to the
-Makefiles as it destroys tabs). You will have to do the same for any files
-you want to view in Windows Notepad. If you have problems, just go and
-download the .zip instead.
-
-Make sure you preserved the directory structure when you extracted DUMB from
-the archive. Most unzipping programs will do this by default, but pkunzip
-requires you to pass -d. If not, please delete DUMB and extract it again
-properly.
-
-If you are using Windows, open an MS-DOS Prompt or a Windows Command Line.
-Change to the directory into which you unzipped DUMB.
-
-If you are using MinGW (and you haven't renamed 'mingw32-make'), type:
-
- mingw32-make
-
-Otherwise, type the following:
-
- make
-
-DUMB will ask you whether you wish to compile for DJGPP or MinGW. Then it
-will ask you whether you want support for Allegro. (You have to have made and
-installed Allegro's optimised library for this to work.) Finally, it will
-compile optimised and debugging builds of DUMB, along with the example
-programs. When it has finished, run one of the following to install the
-libraries:
-
- make install
- mingw32-make install
-
-All done! If you ever need the configuration again (e.g. if you compiled for
-DJGPP before and you want to compile for MinGW now), run one of the
-following:
-
- make config
- mingw32-make config
-
-See the comments in the Makefile for other targets.
-
-Note: the Makefile will only work properly if you have COMSPEC or ComSpec set
-to point to command.com or cmd.exe. If you set it to point to a Unix-style
-shell, the Makefile won't work.
-
-Please let me know if you have any trouble.
-
-As an alternative, MSYS users may attempt to use the configure script,
-available in dumb-0.9.3-autotools.tar.gz. This has been found to work without
-Allegro, and is untested with Allegro. I should appreciate feedback from
-anyone else who tries this. I do not recommend its use, partly because it
-creates dynamically linked libraries and I don't know how to stop it from
-doing that (see the section on compiling DUMB manually), and partly because
-autotools are plain evil.
-
-Scroll down for information on the example programs. Refer to docs/howto.txt
-when you are ready to start programming with DUMB. If you use DUMB in a game,
-let me know - I might decide to place a link to your game on DUMB's website!
-
-
-******************************************************
-*** How to set DUMB up with Microsoft Visual C++ 6 ***
-******************************************************
-
-
-If you have a newer version of Microsoft Visual C++ or Visual Something that
-supports C++, please try these instructions and let me know if it works.
-
-You should have got the .zip version. If for some reason you got the .tar.gz
-version instead, you may have to convert some files to DOS text file format.
-WinZip does this automatically by default. Otherwise, loading such files into
-MS EDIT and saving them again should do the trick. You will have to do this
-for any files you want to view in Windows Notepad. If you have problems, just
-go and download the .zip instead.
-
-Make sure you preserved the directory structure when you extracted DUMB from
-the archive. Most unzipping programs will do this by default, but pkunzip
-requires you to pass -d. If not, please delete DUMB and extract it again
-properly.
-
-DUMB comes with a workspace Microsoft Visual C++ 6, containing projects for
-the DUMB core, the Allegro interface library and each of the examples. The
-first thing you might want to do is load the workspace up and have a look
-around. You will find it in the dumb\vc6 directory under the name dumb.dsw.
-Note that the aldumb and dumbplay projects require Allegro, so they won't
-work if you don't have Allegro. Nevertheless, dumbplay is the best-commented
-of the examples, so do have a look.
-
-When you are ready to add DUMB to your project, follow these instructions:
-
-1. Open your project in VC++.
-2. Select Project|Insert Project into Workspace...
-3. Navigate to the dumb\vc6\dumb directory and select dumb.dsp.
- Alternatively, if you know that you are statically linking with a library
- that uses the statically linked multithreaded runtime (/MT), you may wish
- to select dumb_static.dsp in the dumb_static subdirectory instead.
-4. Select Build|Set Active Configuration..., and reselect one of your
- project's configurations.
-5. Select Project|Dependencies... and ensure your project is dependent on
- DUMB.
-6. Select Project|Settings..., Settings for: All Configurations, C/C++ tab,
- Preprocessor category. Add the DUMB include directory to the Additional
- Include Directories box.
-7. Ensure that for all the projects in the workspace (or more likely just all
- the projects in a particular dependency chain) the run-time libraries are
- the same. That's in Project|Settings, C/C++ tab, Code generation category,
- Use run-time library dropdown. The settings for Release and Debug are
- separate, so you'll have to change them one at a time. Exactly which run-
- time library you use will depend on what you need; it doesn't appear that
- DUMB has any particular requirements, so set it to whatever you're using
- now. (It will have to be /MD, the multithreaded DLL library, if you are
- statically linking with Allegro. If you are dynamically linking with
- Allegro than it doesn't matter.)
-8. If you are using Allegro, do some or all of the above for the aldumb.dsp
- project in the aldumb directory too.
-
-Good thing you only have to do all that once ... or twice ...
-
-If you have the Intel compiler installed, it will - well, should - be used to
-compile DUMB. The only setting I [Tom Seddon] added is /QxiM. This allows the
-compiler to use PPro and MMX instructions, and so when compiling with Intel
-the resultant EXE will require a Pentium II or greater. I don't think this is
-unreasonable. After all, it is 2003 :)
-
-[Note from Ben: the Intel compiler is evil! It makes AMD processors look bad!
-Patch it or boycott it or something!]
-
-If you don't have the Intel compiler, VC will compile DUMB as normal.
-
-This project file and these instructions were provided by Tom Seddon (I hope
-I got his name right; I had to guess it from his e-mail address!). Chad
-Austin has since changed the project files around, and I've just attempted to
-hack them to incorporate new source files. I've also tried to update the
-instructions using guesswork and some knowledge of Visual J++ (you heard me).
-The instructions and the project files are to this day untested by me. If you
-have problems, check the download page at http://dumb.sf.net/ to see if they
-are addressed; failing that, direct queries to me and I'll try to figure them
-out.
-
-If you have any comments at all on how the VC6 projects are laid out, or how
-the instructions could be improved, I should be really grateful to hear them.
-I am a perfectionist, after all. :)
-
-Scroll down for information on the example programs. When you are ready to
-start using DUMB, refer to docs/howto.txt. If you use DUMB in a game, let me
-know - I might decide to place a link to your game on DUMB's website!
-
-
-******************************************************
-*** How to set DUMB up on Linux, BeOS and Mac OS X ***
-******************************************************
-
-
-You should have got the .tar.gz version. If for some reason you got the .zip
-version instead, you may have to strip all characters with ASCII code 13 from
-some of the text files. If you have problems, just go and download the
-.tar.gz instead.
-
-You have two options. There is a Makefile which should cope with most
-systems. The first option is to use this default Makefile, and the procedure
-is explained below. The second option is to download
-dumb-0.9.3-autotools.tar.gz, extract it over the installation, run
-./configure and use the generated Makefile. Users who choose to do this are
-left to their own devices but advised to read the information at the end of
-this section. I strongly recommend the first option.
-
-If you are not using the configure script, the procedure is as follows.
-
-First, run the following command as a normal user:
-
- make
-
-You will be asked whether you want Allegro support. Then, unless you are on
-BeOS, you will be asked where you'd like DUMB to install its headers,
-libraries and examples (which will go in the include/, lib/ and bin/
-subdirectories of the prefix you specify). BeOS has fixed locations for these
-files. You may use shell variables here, e.g. $HOME or ${HOME}, but ~ will-not work. Once you have specified these pieces of information, the optimised
-and debugging builds of DUMB will be compiled, along with the examples. When
-it has finished, you can install them with:
-
- make install
-
-You may need to be root for this to work. It depends on the prefix you chose.
-
-Note: the Makefile will only work if COMSPEC and ComSpec are both undefined.
-If either of these is defined, the Makefile will try to build for a Windows
-system, and will fail.
-
-Please let me know if you have any trouble.
-
-Scroll down for information on the example programs. Refer to docs/howto.txt
-when you are ready to start programming with DUMB. If you use DUMB in a game,
-let me know - I might decide to place a link to your game on DUMB's website!
-
-Important information for users of the configure script follows.
-
-The Makefile generated by the configure script creates dynamically linked
-libraries, and I don't know how to stop it from doing so. See the section
-below on building DUMB manually for why I recommend linking DUMB statically.
-However, if you choose to use the configure script, note the following.
-
-The default Makefile is a copy of Makefile.rdy (short for 'ready'), and it
-must exist with the name Makefile.rdy in order to work. The configure script
-will overwrite Makefile, so if you want the default Makefile back, just run:
-
- cp Makefile.rdy Makefile
-
-Do not use a symlink, as that would result in Makefile.rdy getting
-overwritten next time the configure script is run!
-
-You can also access the usual build system by passing '-f Makefile.rdy' to
-Make.
-
-
-********************************************************
-*** How to build DUMB manually if nothing else works ***
-********************************************************
-
-
-Those porting to platforms without floating point support should be aware
-that DUMB does use floating point operations but not in the inner loops. They
-are used for volume and note pitch calculations, and they are used when
-initialising the filter algorithm for given cut-off and resonance values.
-Please let me know if this is a problem for you. If there is enough demand, I
-may be able to eliminate one or both of these cases.
-
-All of the library source code may be found in the src/ subdirectory. There
-are headers in the include/ subdirectory, and src/helpers/resample.c also
-#includes some .inc files in its own directory.
-
-There are four subdirectories under src/. For projects not using Allegro, you
-will need all the files in src/core/, src/helpers/ and src/it/. If you are
-using Allegro, you will want the src/allegro/ subdirectory too. For
-consistency with the other build systems, the contents of src/allegro/ should
-be compiled into a separate library.
-
-I recommend static-linking DUMB, since the version information is done via
-macros and the API has a tendency to change. If you static-link, then once
-your program is in binary form, you can be sure that changes to the installed
-version of DUMB won't cause it to malfuction. It is my fault that the API has
-been so unstable. Sorry!
-
-Compile each .c file separately. As mentioned above, you will need to specify
-two places to look for #include files: the include/ directory and the source
-file's own directory. You will also need to define the symbol
-DUMB_DECLARE_DEPRECATED on the command line.
-
-Do not compile the .inc files separately.
-
-You may need to edit dumb.h and add your own definition for LONG_LONG. It
-should be a 64-bit integer. If you do this, please see if you can add a check
-for your compiler so that it still works with other compilers.
-
-DUMB has two build modes. If you define the symbol DEBUGMODE, some checks for
-programmer error will be incorporated into the library. Otherwise it will be
-built without any such checks. (DUMB will however always thoroughly check the
-validity of files it is loading. If you ever find a module file that crashes
-DUMB, please let me know!)
-
-I recommend building two versions of the library, one with DEBUGMODE defined
-and debugging information included, and the other with compiler optimisation
-enabled. If you can install DUMB system-wide so that your projects, and other
-people's, can simply #include <dumb.h> or <aldumb.h> and link with libraries
-by simple name with no path, then that is ideal.
-
-If you successfully port DUMB to a new platform, please let me know!
-
-
-****************************
-*** The example programs ***
-****************************
-
-
-Three example programs are provided. On DOS and Windows, you can find them in
-the examples subdirectory. On other systems they will be installed system-
-wide.
-
-dumbplay
- This program will only be built if you have Allegro. Pass it the filename
- of an IT, XM, S3M or MOD file, and it will play it. It's not a polished
- player with real-time threading or anything - so don't complain about it
- stuttering while you use other programs - but it does show DUMB's fidelity
- nicely. You can control the playback quality by editing dumb.ini, which
- must be in the current working directory. (This is a flaw for systems
- where the program is installed system-wide, but it is non-fatal.) Have a
- look at the examples/dumb.ini file for further information.
-
-dumbout
- This program does not need Allegro. You can use it to stream an IT, XM,
- S3M or MOD file to raw PCM. This can be used as input to an encoder like
- oggenc (with appropriate command-line options), or it can be sent to a
- .pcm file which can be read by any respectable waveform editor. This
- program is also convenient for timing DUMB. Compare the time it takes to
- render a module with the module's playing time! dumbout doesn't try to
- read any configuration file; the options are set on the command line.
-
-dumb2wav
- This program is much the same as dumbout, but it writes a .wav file with
- the appropriate header. Thanks go to Chad Austin for this useful tool.
-
-
-*********************************************
-*** Downloading music or writing your own ***
-*********************************************
-
-
-If you would like to compose your own music modules, then this section should
-help get you started.
-
-The best programs for the job are the trackers that pioneered the file
-formats:
-
- Impulse Tracker - IT files - http://www.lim.com.au/ImpulseTracker/
- Fast Tracker II - XM files - http://www.fasttracker2.com/
- Scream Tracker 3 - S3M files - No official site known, please use Google
-
-MOD files come from the Amiga; I do not know what PC tracker to recommend for
-editing these. If you know of one, let me know! In the meantime, I would
-recommend using a more advanced file format. However, don't convert your
-existing MODs just for the sake of it.
-
-Fast Tracker II is Shareware. It offers a very flashy interface and has a
-game embedded, but the IT file format is more powerful and better defined. By
-all means try them both and see which you prefer; it is largely a matter of
-taste (and, in some cases, religion). Impulse Tracker and Scream Tracker 3
-are Freeware, although you can donate to Impulse Tracker and receive a
-slightly upgraded version. DUMB is likely to be at its best with IT files.
-
-These editors are DOS programs. Users of DOS-incapable operating systems may
-like to try ModPlug Tracker, but should read docs/modplug.txt before using it
-for any serious work. If you use a different operating system, or if you know
-of any module editors for Windows that are more faithful to the original
-trackers' playback, please give me some links so I can put them here!
-
- ModPlug Tracker - http://www.modplug.com/
-
-If you have an x86 Linux system with VGA-compatible hardware (which covers
-all PC graphics cards I've ever seen), you should be able to get Impulse
-Tracker running with DOSEMU. You will have to give it access to the VGA ports
-and run it in a true console, as it will not work with the X-based VGA
-emulation. I personally added the SB16 emulation to DOSEMU, so you can even
-use filters! However, it corrupts samples alarmingly often when saving on my
-system - probably a DOSEMU issue. If you set this up, I am curious to know
-whether it works for you.
-
- DOSEMU - http://www.dosemu.org/
-
-BEWARE OF WINAMP! Although it's excellent for MP3s, it is notorious for being
-one of the worst module players in existence; very many modules play wrongly
-with it. There are plug-ins available to improve Winamp's module support, for
-example WSP.
-
- Winamp - http://www.winamp.com/
- WSP - http://www.spytech.cz/index.php?sec=demo
-
-(There is a Winamp plug-in that uses DUMB, but it is unreliable. If anyone
-would like to work on it, please get in touch.)
-
-While I am at it I should also point out that Winamp is notorious for
-containing security flaws. Install it at your own risk, and if it is your
-work computer, check with your boss first!
-
-Samples and instruments are the building blocks of music modules. You can
-download samples at
-
- http://www.tump.net/
-
-If you would like to download module files composed by other people, check
-the following sites:
-
- http://www.modarchive.com/
- http://www.scene.org/
- http://www.tump.net/
- http://www.homemusic.cc/main.php
- http://www.modplug.com/
-
-Once again, if you know of more sites where samples or module files are
-available for download, please let me know.
-
-If you wish to use someone's music in your game, please respect the
-composer's wishes. In general, you should ask the composer. Music that has
-been placed in the Public Domain can be used by anyone for anything, but it
-wouldn't do any harm to ask anyway if you know who the author is. In many
-cases the author will be thrilled, so don't hesitate!
-
-A note about converting modules from one format to another, or converting
-from MIDI: don't do it, unless you are a musician and are prepared to go
-through the file and make sure everything sounds the way it should! The
-module formats are all slightly different, and MIDI is very different;
-converting from one format to another will usually do some damage.
-
-Instead, it is recommended that you allow DUMB to interpret the original file
-as it sees fit. DUMB may make mistakes (it does a lot of conversion on
-loading), but future versions of DUMB will be able to rectify these mistakes.
-On the other hand, if you convert the file, the damage is permanent.
-
-
-***********************
-*** Contact details ***
-***********************
-
-
-If you have trouble with DUMB, or want to contact me for any other reason, my
-e-mail address is given below. Please do get in touch, even if I appear to
-have disappeared!
-
-If you wish to chat online about something, perhaps on IRC, that can most
-likely be arranged. Send me an e-mail.
-
-
-******************
-*** Conclusion ***
-******************
-
-
-This is the conclusion.
-
-
-Ben Davis
-entheh@users.sf.net
--- a/dumb/release.txt
+++ /dev/null
@@ -1,561 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * release.txt - Release notes for DUMB. / / \ \
- * | < / \_
- * | \/ /\ /
- * \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-
-*******************************************
-*** DUMB v0.9.3, released 7 August 2005 ***
-*******************************************
-
-Hello! Welcome to a long-awaited-or-probably-just-given-up-on-by-everybody
-release! New to this release are lower memory usage, faster mixing loops,
-loading of text fields in the module files, and faster load functions for
-projects that don't need to seek within the module or know its length.
-Additionally, Chad Austin has contributed a dumb2wav tool for converting
-modules to .wav files and updated the Visual Studio 6 project files to
-compile all the examples as well as the library. Users of Unix-like systems
-will be pleased to know that on Chad's suggestion I have made the build
-system cope with variables such as $HOME or ${HOME} in the prefix.-
-Chad has also contributed an Autotools build system, but neither of us
-recommends its use. The Autotools are an evil black box, we haven't quite
-managed to get it right, and goodness help you if it happens not to work for
-you. The files are available in a separate download if you absolutely need
-them. Notice that that download is almost twice as large as the rest of DUMB!
-
-Maybe we'll do SCons next time.
-
-Thanks to Chad for all his work. Chad is the author of Audiere, a portable
-sound library which has started using DUMB for its module playback! Wahoo!
-
- http://audiere.sf.net/
-
-There are three main optimisations that went into the mixing loops.
-
-First, I downloaded ModPlugXMMS and had a peek at the mixing code, which is
-Public Domain. It uses look-up tables for the cubic mixing. I pinched the
-idea, and that sped DUMB's cubic (best quality) resamplers up by a factor of
-two or three.
-
-Secondly, the samples loaded from the file are now kept in 8-bit or 16-bit
-format, whereas previously they were being converted to 24-bit-in-32-bit on
-loading. This means the samples occupy a half or a quarter of the memory they
-used to occupy. It also had the side-effect of speeding up the mixing loops,
-but it meant I had to duplicate the resampling code. (It is all done with
-macros in the source code, but it becomes two copies on the binary level.)
-
-Secondly, stereo samples and stereo mixing buffers are now kept in
-interleaved format, where previously the two channels were done separately to
-keep the code simpler. This change has made the library quite a bit bigger,
-but has made the code run almost twice as fast for stereo output (tested for
-modules whose samples are mostly mono)!
-
-DUMB is now as fast as ModPlugXMMS on my system.
-
-Some people have also commented that DUMB seems to take a long time loading
-files. This is because immediately upon loading the file it runs the playback
-engine over it up as far as the point of first loop, taking snapshots at 30-
-second intervals to be used as references for fast seeking and finally
-storing the playback time. Of course, most games don't need this. You can now
-skip it by calling the _quick versions of the dumb_load_*(), dumb_read_*() or
-dumb_register_dat_*() functions. Should you need the data later, you can call
-dumb_it_do_initial_runthrough() to calculate it. Please note that this cannot
-currently be done safely from a concurrent thread while the music is playing.
-
-As mentioned, DUMB loads the text fields in module files now. You can
-retrieve the song title with duh_get_tag(). Sample names and file names and
-instrument names and filenames, and the song message for IT files, are
-available with a call to duh_get_it_sigdata() and various dumb_it_sd_*()
-functions. Please note that text fields added as extensions by ModPlug
-Tracker are not supported.
-
-DUMB's timing is ever so slightly more accurate. This is hardly noticeable,
-but it has meant that the length computed will increase very slightly.
-
-There are many small playback fixes in this release:
-
-* The Lxx effect in XM files (set envelope position) is now supported.
-
-* Pattern looping is now correct for XM files. Bizarrely, an ordinary pattern
- loop whose start point isn't the first row seems to cause the next pattern
- to start at the row corresponding to the loop start point. That must have
- been a headache for people creating XM files! Nevertheless, DUMB now
- emulates this behaviour. If you have an XM file that was written in a
- tracker other than Fast Tracker II and breaks in DUMB, you can get around
- it by putting a D00 effect (break to row 0) right at the end of the pattern
- containing the loop.
-
-* XM pattern looping can be infinite. DUMB should detect this and call the
- loop callback when it happens. Specifically, it has a loop counter for each
- channel, so each time it sets or decrements that counter, it remembers the
- loop end point for that channel. When the loop terminates, the loop end
- point is reset to 0. If the loop end point ever decreases during a loop,
- the loop callback is called. If anyone manages to get around this check and
- prevent DUMB from calling the callback, please let me know and send me an
- illustrative XM file!
-
-* For IT files, notes are now removed from channels if they have faded out,
- even if they are still in the foreground. After this has happened, a row
- with a note and Gxx (tone portamento) specified will cause a new note to
- start playing, which is what Impulse Tracker does in this scenario.
- (Normally, Gxx prevents the new note from playing and instead causes the
- old note to start sliding towards the new note.)
-
-* If a tone portamento command occurred when no note was playing, the effect
- value wasn't stored. This has been fixed. Thanks to Maim from #trax on
- EFnet for discovering this bug.
-
-* DUMB now treats the parameter to the undocumented XM key off effect Kxx as
- a delay, consistent with Fast Tracker II's behaviour. It has also been made
- not to clear the note, so a subsequent volume command will restore it, as
- in Fast Tracker II.
-
-* DUMB used to process the first row when you created the
- DUMB_IT_SIGRENDERER. This happened before you had a chance to install any
- callbacks. If an F00 effect occurred on the first row, the music would stop
- immediately and the xm_speed_zero callback would be called if it were
- present. Unfortunately, it wasn't present, and the algorithm for
- calculating the length subsequently went into an endless loop while waiting
- for it. Worse still, the same algorithm accumulated data for fast seeking,
- and never stopped, so it pretty quickly consumed all the resources. DUMB
- will now not process the first row until you first request some samples,
- provided you pass zero for pos. Of course, any MOD or XM file with F00 in
- the very first row won't do much anyway, but such files won't crash the
- library now.
-
-* There was a subtle bug that affected a few XM files. For instruments with
- no associated samples, the array mapping notes to samples is uninitialised.
- This became a problem if such instruments were then used, which does happen
- sometimes. On many systems, memory is initialised to zero when first given
- to a program (for security reasons), so the problem didn't come up most of
- the time. However, on platforms like DOS where memory isn't initialised, or
- in programs that reuse memory later on (this includes the XMMS plug-in with
- which I discovered the bug), a rogue note would occasionally play. This has
- now been fixed.
-
-* DUMB's envelope handling for IT files was subtly wrong. Upon note off, it
- stopped obeying the sustain loop points one tick too early. Notes were
- often shorter than they should have been, and in pathological cases a whole
- extra iteration of the sustain loop section might have been skipped. The
- envelope code has now been rewritten. Thanks go to Allefant for Valgrinding
- the new code!
-
-Finally, there were two build problems in the last version, which were fixed
-in the download marked with -fixed. They are of course correct in this
-version. For the record:
-
-* The make/config.bat file, responsible for generating make/config.txt, wrote
- a crucial line to the wrong place, causing it to be left out of the file.
- As a result, the makefile would fail to install everything for Allegro
- users, and enter infinite recursion for other users. This applied to people
- using DJGPP and MinGW.
-
-* DUMB's Makefile was supposed to install the example programs on Unix-based
- platforms, but it wasn't doing. The fix was to edit Makefile and change the
- one occurrence of $COMSPEC to $(COMSPEC).
-
-That's it! I hope you enjoy this long-awaited-or-probably-just-given-up-on-
-by-everybody release of DUMB!
-
-
-******************************************
-*** DUMB v0.9.2, released 2 April 2003 ***
-******************************************
-
-Yes, there really has been a release. This is not a day-late April fools'
-joke.
-
-DUMB's full name has changed! The old "Dedicated Universal Music
-Bastardisation" was rather silly, and not much more than a forced attempt at
-finding words beginning with D, U, M and B. I spent weeks and weeks browsing
-dictionaries and hopelessly asking others for bright ideas, until the
-brilliant Chris "Kitty Cat" Robinson came up with "Dynamic". I decided to
-keep the U as Universal, since a DUH struct can hold digital music in any
-format. Now all that remained was the B, but it didn't take me long to come
-up with Bibliotheque, which, despite looking French, is indeed considered an
-English word by Oxford English Dictionary Online, to which my university has
-a subscription. So there you have it - the name now makes sense.
-
-The two most significant additions to the project would have to be the new
-thread safety (with an important restriction, detailed in docs/dumb.txt), and
-the new build system. The silly 'makeall' and 'makecore' scripts are gone. If
-you are a GCC user, all you need do now is run 'make' and 'make install', as
-for other projects. You don't even have to run a 'fix' script any more! There
-are some caveats, which are covered in readme.txt. If you use Microsoft
-Visual C++ 6, you no longer need to obtain GCC and GNU Make - there is a
-project file just for you.
-
-Huge thanks go to Steve Terry for testing on Windows XP - about five times -
-and to lillo for testing on BeOS and Mac OS X. Thanks also to X-G for testing
-on a Windows system that has consistently posed problems for DUMB's old
-makefiles.
-
-There was a bug whereby al_poll_duh() would sometimes cause the music to
-resume playing if you called it after al_pause_duh(). Whether this was DUMB's
-fault for misusing Allegro's API, or a bug in Allegro, is unclear, but this
-release makes it work.
-
-In one of my projects, I found that my AL_DUH_PLAYER stopped playing when
-there were lots of other sound effects. In order to fix this, I programmed
-DUMB to set the priority of the stream's voice to 255, the maximum. I also
-added al_duh_set_priority(), so you can set the priority yourself if you need
-to.
-
-The resampling code has undergone a transformation. The bad news is that the
-linear average code is no longer in use. The good news is that where DUMB's
-resamplers used to require three extra samples' worth of memory to be
-allocated and initialised, it now copes with just the sample data. And it
-does a very good job at bouncing off loop points and otherwise hurtling
-around the sample. The resampling code is considerably more complicated, but
-the code that uses the resamplers is considerably simpler - and if you
-noticed a slight click in some bidirectionally looping samples, you'll be
-pleased to know that that click is gone!
-
-I have also devoted some effort to optimisation. It seemed hopeless for a
-while, but then I actually figured out a way of making it faster AND more
-accurate at the same time! DUMB is now quite a bit faster than it was, and it
-mixes not with 16-bit precision, but with 24-bit precision. (It used 32-bit
-integers all along, but the difference is that it now makes use of 256 times
-as much of the integer's range.)
-
-There have been the usual improvements to playback. The last release occurred
-rather too soon after I had fixed the XM effect memories; EAx and EBx, fine
-volume ramps, had been neglected. These are now handled properly.
-
-In previous versions of DUMB, muted channels in IT were actually played with
-surround sound panning (where the right-hand channel is inverted). This has
-been fixed, so muted channels will really be muted now.
-
-There were also some subtle problems with the way DUMB handled New Note
-Actions for IT files. It turned out that, in all releases of DUMB so far,
-pitch, filter and panning envelopes and sample vibrato were not being
-processed for any note that was forced into the background by a new note on
-the same channel! This only affected IT files. Not only has this been fixed,
-but envelope interpolation is much more accurate. Long trailing envelope-
-driven fade-outs sound a lot better now!
-
-Since panning and filter envelopes are more precise, extra fields have been
-added to the DUMB_IT_CHANNEL_STATE struct, used by
-dumb_it_sr_get_channel_state(). These fields hold the 'decimal' parts of the
-pan and filter cut-off. See dumb.txt for details.
-
-Mxx (set channel volume) now correctly only modifies the last note played on
-the channel, not any previous notes that have been forced into the background
-by New Note Actions, and filter effect processing is now closer to what
-Impulse Tracker does.
-
-The XM loader was slightly flawed and could crash on files containing samples
-with out-of-range loop points. One such file was given to me. This has been
-fixed.
-
-Finally, the legal stuff. Julien Cugniere has been added to the list of
-copyright owners. He deserves it, for all the work he did on the XM support!
-And the licence has been changed. You are no longer required to include a
-link to DUMB in a project that uses DUMB; the reasons for this relaxation are
-explained in licence.txt. However, the request is still there ...
-
-As usual, enjoy!
-
-
-**********************************************
-*** DUMB v0.9.1, released 19 December 2002 ***
-**********************************************
-
-Hi again! Lots to say this time, so I shall cut right to the chase.
-
-DUMB now supports Impulse Tracker's low-pass resonant filters! Huge thanks go
-to Jeffrey Lim, author of Impulse Tracker, for giving me what information he
-still had regarding the algorithm; to cut a long story short, modifying
-ModPlug Tracker's source code (which is in the Public Domain) led to an
-algorithm whose output matched Impulse Tracker's perfectly.
-
-Please note that ModPlug Tracker's filters as they stand do not match Impulse
-Tracker's, and I have no interest in supporting ModPlug Tracker's variant
-(especially not the integer rounding problems). Please see docs/modplug.txt,
-new in this release, for details.
-
-Thanks also go to Fatso Huuskonen for motivating me to add filter support,
-and providing me with several great IT files to test it with!
-
-The other important feature added for this release is click removal. Up until
-now, DUMB has generated clicks when cutting notes, starting samples in the
-middle, and so on. This version of DUMB will remove any such clicks. Note
-that DUMB does not use volume ramps to accomplish this; the algorithm will
-not take the bite out of the music!
-
-In other news, DUMB now supports sample vibrato for IT files, and instrument
-vibrato for XM files. A slight bug in New Note Action handling for IT files
-has been fixed; Note Fade will not break the sustain loops of the sample and
-envelope, as it did before. Tremor handling (Ixy) had a strange bug in it,
-which has been fixed.
-
-Support for XM files has been greatly enhanced. The XM envelope handling new
-in the last release contained a huge bug, resulting in notes seeming not to
-stop when they should; this has been fixed. Some XM files crashed DUMB, while
-others failed to load; these problems have been solved. Effect memories now
-work properly for XM and MOD files, to the best of my knowledge. Some other
-differences between IT and XM have been accounted for, most notably the
-Retrigger Note effects, Rxy and E9x.
-
-DUMB's sound quality and accuracy are not the only areas that have been
-enhanced. The API has been expanded, at last. You can now detect when a
-module loops, or make it play through just once. You can ask DUMB to inform
-you every time it generates some samples; this is useful for visualisation.
-For IT files, you can intercept the MIDI messages generated by Zxx macros,
-enabling you to synchronise your game with the music to some extent. (There
-is no such method for XM, S3M or MOD files yet; sorry. Also note that the
-function will be called before you actually hear the sound; I cannot improve
-this until DUMB has its own sound drivers, which won't be for a while.) You
-can query the current order and row. Finally, operations like changing the
-speed and tempo are now possible, and you can query the playback state on
-each channel.
-
-Some parts of DUMB's API have been deprecated. Simple programs that use
-Allegro will be unaffected, but if you get some compiler warnings or errors,
-please review docs/deprec.txt. This file explains why those parts of the API
-were deprecated, and tells you how to adapt your code; the changes you need
-to make are straightforward. Sorry for the inconvenience.
-
-For various reasons, I have made DUMB's makefiles use different compiler
-flags depending on your GCC version (unless you are using MSVC). There is no
-elegant way of getting the makefiles to detect when GCC is upgraded. If you
-upgrade GCC, you should execute 'make clean' in order to make DUMB detect the
-GCC version again. Otherwise you may get some annoying error messages. (It is
-wise to do this in any case, so that all the object files are built with the
-same GCC version.)
-
-DUMB's example players have been unified into a single player called
-'dumbplay'. The player has been enhanced to display messages when the music
-loops, and when XM and MOD files freeze (effect F00; more information on this
-in docs/howto.txt).
-
-Finally, as noted on DUMB's website, the release notes from the last release
-were inaccurate. It has been verified that DUMBOGG v0.5 does still work with
-that release, and still works with this release. The esoteric DUMBOGG v0.6
-has not been created yet, since DUMBOGG v0.5 still works.
-
-Please scroll down and read through the indented paragraphs in the notes for
-the last release; they are relevant for this release too.
-
-That's all folks! Until next time.
-
-
-*******************************************
-*** DUMB v0.9, released 16 October 2002 ***
-*******************************************
-
-MOD support is here! DUMB now supports all four of the common module formats.
-As usual, there have also been some improvements to the way modules are
-played back. Most notably, handling of tone portamento in IT files has been
-improved a lot, and XM envelopes are now processed correctly.
-
-The other major change is that DUMB now does a dummy run through each module
-on loading. It stores the playback state at thirty-second intervals. It stops
-when the module first loops, and then stores the playback time. This results
-in a slightly longer load time and a greater memory overhead, but seeking is
-faster (to any point before the module first loops) and the length is
-calculated! duh_get_length() will return this and is now documented in
-docs/howto.txt and docs/dumb.txt.
-
-DUMB's build process has been changed to use 'mingw' wherever it used
-'mingw32' before; some directories have been renamed, and the 'fix' command
-you had to run for MinGW has been changed from 'fix mingw32' to 'fix mingw'.
-
-Last time, I directed you to scroll down and read the notes from a past
-release, but ignore this point, and that point applies to something else, and
-so on. Did anyone do so? Well, if you're reading this at all, you probably
-did. Nevertheless, this time I shall be much less confusing and restate any
-relevant information. So the least you can do is read it!
-
-- If your program ever aborts with exit code 37 while loading an IT file,
- PLEASE LET ME KNOW! The IT file in question has a stereo compressed sample
- in it, and the format is unspecified for this case (Impulse Tracker itself
- doesn't use stereo samples at all). I will need the IT file in question,
- and any information you can give me about how the IT file was created (e.g.
- what program). (If you don't get to see an exit code, let me know anyway.)
-
-- If your program ever outputs a line resembling "Inst 01 Env: 0,64 8,32
- 15,48" to stderr while loading an IT file, PLEASE LET ME KNOW! You have an
- old IT file (saved by an Impulse Tracker version older than 2.00), and
- support for such files is STILL untested.
-
-- Not all parts of DUMB's API are documented yet. You will find some
- functions in dumb.h which are not listed in docs/dumb.txt; the reason is
- that these functions still need work and will probably change. If you
- really, really want to use them, talk to me first (IRC EFnet #dumb is a
- good place for this; see readme.txt for details on using IRC). I intend to
- finalise and document the whole of DUMB's API for Version 1.0.
-
-There have been some changes to the naming conventions in DUMB's undocumented
-API. DUMBOGG v0.5 will not work with this and subsequent releases of DUMB;
-please upgrade to DUMBOGG v0.6. These changes should not break anything in
-your own code, since you didn't use those parts of the API, did you ;)
-
-There is still a great deal of work to be done before DUMB's API can be
-finalised, and thus it will be a while before DUMB v1.0 comes out. It should
-be worth the wait. In the meantime, there will be 0.9.x releases with
-additional functionality, improved playback, and possibly support for some
-extra file formats.
-
-Finally I should like to offer an apology; there is a strong possibility that
-some of DUMB's official API will change in the near future. There will not be
-any drastic changes, and the corresponding changes to your source code will
-be simple enough. If I didn't make these changes, DUMB's API would start to
-become limited, or messy, or both, so it's for the better. I apologise in
-advance for this.
-
-Now scroll down and read the notes for the first r... oh wait, we already did
-that. I guess that's it then. You can stop reading now.
-
-Right after you've read this.
-
-And this.
-
-Off you go.
-
-Bye.
-
-
-********************************************
-*** DUMB v0.8.1, released 11 August 2002 ***
-********************************************
-
-This is a minor release that fixes a few bugs. One of these bugs, however,
-was pretty serious. dumb_register_dat_xm() was never coded! It was prototyped
-in aldumb.h, so code would compile, but there would be an unresolved symbol
-at the linking stage. This has been fixed.
-
-Platforms other than Unix did not have a working 'make veryclean' target;
-this has been fixed. In addition, the makefiles now use 'xcopy' instead of
-'copy', since on some systems GNU Make seems to have trouble calling commands
-built in to the shell.
-
-Contrary to the errata that was on the DUMB website, the makeall.sh and
-makecore.sh scripts actually DID install in /usr. This has now been
-corrected, and regardless of whether you use these scripts or call make
-directly, the files will now be installed to /usr/local by default.
-
-The XM loader used to treat stereo samples as mono samples with the data for
-the right channel positioned after the data for the left channel. This
-generally resulted in an unwanted echo effect. This has been fixed.
-
-When playing XM files, specifying an invalid instrument would cause an old
-note on that channel to come back (roughly speaking). Fast Tracker 2 does not
-exhibit this behaviour. This has been fixed.
-
-The GCC makefiles used -mpentium, which is deprecated in gcc 3.x. This was
-generating warnings, and has now been fixed.
-
-In XM files, the length of a sample is stored in bytes. DUMB was assuming
-that the length of a 16-bit sample would be even. I had two XM files where
-this was not the case, and DUMB was unable to load them. This has been fixed.
-
-In order to accommodate the extra part of the version number,
-DUMB_REVISION_VERSION has been added. DUMB_VERSION has also been added in
-order to facilitate checking if the version of DUMB installed is sufficient.
-See docs/dumb.txt for details.
-
-As a last-minute fix, the XM "Break to row" effect is now loaded properly. It
-was necessary to convert from binary-coded decimal to hexadecimal (those who
-have experience with Fast Tracker 2 will know what I mean). In short, this
-means the effect will now work properly when breaking to row 10 or greater.
-
-DUMB v0.8 had faulty release date constants; DUMB_MONTH and DUMB_DAY were
-swapped! For this reason, DUMB_DATE should not be compared against any date
-in 2002. This note has been added to docs/dumb.txt and also to dumb.h.
-
-Please scroll to the end and read the release notes for the first version,
-DUMB v0.7. Most of them apply equally to this release. However, the
-non-portable code was rewritten for DUMB v0.8, so that point does not apply.
-The point about length not being calculated also applies to XM files.
-
-Enjoy :)
-
-
-****************************************
-*** DUMB v0.8, released 14 June 2002 ***
-****************************************
-
-Welcome to the second release of DUMB!
-
-In addition to these notes, please read below the release notes for the
-previous version, DUMB v0.7. Most of them apply equally to this release.
-However, the non-portable code has been rewritten; DUMB should now port to
-big-endian platforms.
-
-The main improvement in this release of DUMB is the support for XM files.
-Enormous thanks go to Julien Cugniere for working on this while I had to
-revise for my exams!
-
-There was a mistake in the makefiles in the last release. The debugging
-Allegro interface library was mistakenly named libaldmbd.a instead of
-libaldmd.a, meaning you had to compile with -laldmbd, contrary to what the
-docs said. Apologies to everyone who lost sleep trying to work out what was
-wrong! The reason for using libaldmd.a is to maintain compatibility with
-plain DOS, where filenames are limited to eight characters (plus a three-
-letter extension). The makefiles have now been changed to match the
-information in the docs, so you may have to alter your project files
-accordingly.
-
-The example programs were faulty, and crashed on Windows if they were unable
-to load the file. It was also difficult to work out how to exit them (you had
-to click the taskbar button that didn't have a window, then press a key).
-They have been improved in both these respects.
-
-I have now added a docs/faq.txt file (Frequently Asked Questions), which is
-based on problems and misconceptions people have had with the first release.
-Please refer to it before contacting me with problems.
-
-Thanks to networm for touching up the Unix makefile and writing the
-instructions on using it.
-
-Incidentally, today (Friday 14 June) is the Robinson College May Ball at
-Cambridge Uni. God knows why it's called a May Ball if it's in June. I'm not
-going myself (72 GBP, and I'd have to wear a suit, ugh), but with all the
-noise outside I shall enjoy pumping up the speakers tonight!
-
-
-****************************************
-*** DUMB v0.7, released 2 March 2002 ***
-****************************************
-
-This is the first release of DUMB, and parts of the library are not
-crystallised. Don't let this put you off! Provided you don't try to use any
-features that aren't documented in docs/dumb.txt, the library should be rock
-solid and you should be able to upgrade more or less without problems.
-
-Here are some notes on this release:
-
-- There is some non-portable code in this release of DUMB. It is likely that
- the library will fail to load IT files with compressed samples on
- big-endian machines such as the Apple Macintosh.
-
-- If your program ever aborts with exit code 37 while loading an IT file,
- PLEASE LET ME KNOW! The IT file in question has a stereo compressed sample
- in it, and the format is unspecified for this case (Impulse Tracker itself
- doesn't use stereo samples at all). I will need the IT file in question,
- and any information you can give me about how the IT file was created (e.g.
- what program). (If you don't get to see an exit code, let me know anyway.)
-
-- If your program ever outputs a line resembling "Inst 01 Env: 0,64 8,32
- 15,48" to stderr while loading an IT file, PLEASE LET ME KNOW! You have an
- old IT file (saved by an Impulse Tracker version older than 2.00), and
- support for such files is untested.
-
-- The length of IT and S3M files is not currently calculated. It is just set
- to ten minutes.
--- a/dumb/src/core/atexit.c
+++ /dev/null
@@ -1,71 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * atexit.c - Library Clean-up Management. / / \ \
- * | < / \_
- * By entheh. | \/ /\ /
- * \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-
-#include "dumb.h"
-#include "internal/dumb.h"
-
-
-
-typedef struct DUMB_ATEXIT_PROC
-{- struct DUMB_ATEXIT_PROC *next;
- void (*proc)(void);
-}
-DUMB_ATEXIT_PROC;
-
-
-
-static DUMB_ATEXIT_PROC *dumb_atexit_proc = NULL;
-
-
-
-int dumb_atexit(void (*proc)(void))
-{- DUMB_ATEXIT_PROC *dap = dumb_atexit_proc;
-
- while (dap) {- if (dap->proc == proc) return 0;
- dap = dap->next;
- }
-
- dap = malloc(sizeof(*dap));
-
- if (!dap)
- return -1;
-
- dap->next = dumb_atexit_proc;
- dap->proc = proc;
- dumb_atexit_proc = dap;
-
- return 0;
-}
-
-
-
-void dumb_exit(void)
-{- while (dumb_atexit_proc) {- DUMB_ATEXIT_PROC *next = dumb_atexit_proc->next;
- (*dumb_atexit_proc->proc)();
- free(dumb_atexit_proc);
- dumb_atexit_proc = next;
- }
-}
--- a/dumb/src/core/duhlen.c
+++ /dev/null
@@ -1,42 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * duhlen.c - Functions to set and return the / / \ \
- * length of a DUH. | < / \_
- * | \/ /\ /
- * By entheh. \_ / > /
- * | \ / /
- * Note that the length of a DUH is a constant | ' /
- * stored in the DUH struct and in the DUH disk \__/
- * format. It will be calculated on loading for
- * other formats in which the length is not explicitly stored. Also note that
- * it does not necessarily correspond to the length of time for which the DUH
- * will generate samples. Rather it represents a suitable point for a player
- * such as Winamp to stop, and in any good DUH it will allow for any final
- * flourish to fade out and be appreciated.
- */
-
-#include "dumb.h"
-#include "internal/dumb.h"
-
-
-
-long duh_get_length(DUH *duh)
-{- return duh ? duh->length : 0;
-}
-
-
-
-void duh_set_length(DUH *duh, long length)
-{- if (duh)
- duh->length = length;
-}
--- a/dumb/src/core/duhtag.c
+++ /dev/null
@@ -1,58 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * duhtag.c - Function to return the tags stored / / \ \
- * in a DUH struct (typically author | < / \_
- * information). | \/ /\ /
- * \_ / > /
- * By entheh. | \ / /
- * | ' /
- * \__/
- */
-
-#include <string.h>
-
-#include "dumb.h"
-#include "internal/dumb.h"
-
-
-
-const char *duh_get_tag(DUH *duh, const char *key)
-{- int i;
- ASSERT(key);
- if (!duh || !duh->tag) return NULL;
-
- for (i = 0; i < duh->n_tags; i++)
- if (strcmp(key, duh->tag[i][0]) == 0)
- return duh->tag[i][1];
-
- return NULL;
-}
-
-
-
-int duh_get_tag_iterator_size(DUH *duh)
-{- return (duh && duh->tag ? duh->n_tags : 0);
-}
-
-
-int duh_get_tag_iterator_get(DUH *duh, const char **key, const char **tag, int i)
-{- ASSERT(key);
- ASSERT(tag);
- if (!duh || !duh->tag || i >= duh->n_tags) return -1;
-
- *key = duh->tag[i][0];
- *tag = duh->tag[i][1];
-
- return 0;
-}
--- a/dumb/src/core/dumbfile.c
+++ /dev/null
@@ -1,418 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * dumbfile.c - Hookable, strictly sequential / / \ \
- * file input functions. | < / \_
- * | \/ /\ /
- * By entheh. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-
-#include "dumb.h"
-
-
-
-static const DUMBFILE_SYSTEM *the_dfs = NULL;
-
-
-
-void register_dumbfile_system(const DUMBFILE_SYSTEM *dfs)
-{- ASSERT(dfs);
- ASSERT(dfs->open);
- ASSERT(dfs->getc);
- ASSERT(dfs->close);
- ASSERT(dfs->seek);
- ASSERT(dfs->get_size);
- the_dfs = dfs;
-}
-
-
-
-#include "internal/dumbfile.h"
-
-
-
-DUMBFILE *dumbfile_open(const char *filename)
-{- DUMBFILE *f;
-
- ASSERT(the_dfs);
-
- f = (DUMBFILE *) malloc(sizeof(*f));
-
- if (!f)
- return NULL;
-
- f->dfs = the_dfs;
-
- f->file = (*the_dfs->open)(filename);
-
- if (!f->file) {- free(f);
- return NULL;
- }
-
- f->pos = 0;
-
- return f;
-}
-
-
-
-DUMBFILE *dumbfile_open_ex(void *file, const DUMBFILE_SYSTEM *dfs)
-{- DUMBFILE *f;
-
- ASSERT(dfs);
- ASSERT(dfs->getc);
- ASSERT(file);
-
- f = (DUMBFILE *) malloc(sizeof(*f));
-
- if (!f) {- if (dfs->close)
- (*dfs->close)(file);
- return NULL;
- }
-
- f->dfs = dfs;
- f->file = file;
-
- f->pos = 0;
-
- return f;
-}
-
-
-
-long dumbfile_pos(DUMBFILE *f)
-{- ASSERT(f);
-
- return f->pos;
-}
-
-
-
-int dumbfile_skip(DUMBFILE *f, long n)
-{- int rv;
-
- ASSERT(f);
- ASSERT(n >= 0);
-
- if (f->pos < 0)
- return -1;
-
- f->pos += n;
-
- if (f->dfs->skip) {- rv = (*f->dfs->skip)(f->file, n);
- if (rv) {- f->pos = -1;
- return rv;
- }
- } else {- while (n) {- rv = (*f->dfs->getc)(f->file);
- if (rv < 0) {- f->pos = -1;
- return rv;
- }
- n--;
- }
- }
-
- return 0;
-}
-
-
-
-int dumbfile_getc(DUMBFILE *f)
-{- int rv;
-
- ASSERT(f);
-
- if (f->pos < 0)
- return -1;
-
- rv = (*f->dfs->getc)(f->file);
-
- if (rv < 0) {- f->pos = -1;
- return rv;
- }
-
- f->pos++;
-
- return rv;
-}
-
-
-
-int dumbfile_igetw(DUMBFILE *f)
-{- int l, h;
-
- ASSERT(f);
-
- if (f->pos < 0)
- return -1;
-
- l = (*f->dfs->getc)(f->file);
- if (l < 0) {- f->pos = -1;
- return l;
- }
-
- h = (*f->dfs->getc)(f->file);
- if (h < 0) {- f->pos = -1;
- return h;
- }
-
- f->pos += 2;
-
- return l | (h << 8);
-}
-
-
-
-int dumbfile_mgetw(DUMBFILE *f)
-{- int l, h;
-
- ASSERT(f);
-
- if (f->pos < 0)
- return -1;
-
- h = (*f->dfs->getc)(f->file);
- if (h < 0) {- f->pos = -1;
- return h;
- }
-
- l = (*f->dfs->getc)(f->file);
- if (l < 0) {- f->pos = -1;
- return l;
- }
-
- f->pos += 2;
-
- return l | (h << 8);
-}
-
-
-
-long dumbfile_igetl(DUMBFILE *f)
-{- unsigned long rv, b;
-
- ASSERT(f);
-
- if (f->pos < 0)
- return -1;
-
- rv = (*f->dfs->getc)(f->file);
- if ((signed long)rv < 0) {- f->pos = -1;
- return rv;
- }
-
- b = (*f->dfs->getc)(f->file);
- if ((signed long)b < 0) {- f->pos = -1;
- return b;
- }
- rv |= b << 8;
-
- b = (*f->dfs->getc)(f->file);
- if ((signed long)b < 0) {- f->pos = -1;
- return b;
- }
- rv |= b << 16;
-
- b = (*f->dfs->getc)(f->file);
- if ((signed long)b < 0) {- f->pos = -1;
- return b;
- }
- rv |= b << 24;
-
- f->pos += 4;
-
- return rv;
-}
-
-
-
-long dumbfile_mgetl(DUMBFILE *f)
-{- unsigned long rv, b;
-
- ASSERT(f);
-
- if (f->pos < 0)
- return -1;
-
- rv = (*f->dfs->getc)(f->file);
- if ((signed long)rv < 0) {- f->pos = -1;
- return rv;
- }
- rv <<= 24;
-
- b = (*f->dfs->getc)(f->file);
- if ((signed long)b < 0) {- f->pos = -1;
- return b;
- }
- rv |= b << 16;
-
- b = (*f->dfs->getc)(f->file);
- if ((signed long)b < 0) {- f->pos = -1;
- return b;
- }
- rv |= b << 8;
-
- b = (*f->dfs->getc)(f->file);
- if ((signed long)b < 0) {- f->pos = -1;
- return b;
- }
- rv |= b;
-
- f->pos += 4;
-
- return rv;
-}
-
-
-
-unsigned long dumbfile_cgetul(DUMBFILE *f)
-{- unsigned long rv = 0;
- int v;
-
- do {- v = dumbfile_getc(f);
-
- if (v < 0)
- return v;
-
- rv <<= 7;
- rv |= v & 0x7F;
- } while (v & 0x80);
-
- return rv;
-}
-
-
-
-signed long dumbfile_cgetsl(DUMBFILE *f)
-{- unsigned long rv = dumbfile_cgetul(f);
-
- if (f->pos < 0)
- return rv;
-
- return (rv >> 1) | (rv << 31);
-}
-
-
-
-long dumbfile_getnc(char *ptr, long n, DUMBFILE *f)
-{- long rv;
-
- ASSERT(f);
- ASSERT(n >= 0);
-
- if (f->pos < 0)
- return -1;
-
- if (f->dfs->getnc) {- rv = (*f->dfs->getnc)(ptr, n, f->file);
- if (rv < n) {- f->pos = -1;
- return MAX(rv, 0);
- }
- } else {- for (rv = 0; rv < n; rv++) {- int c = (*f->dfs->getc)(f->file);
- if (c < 0) {- f->pos = -1;
- return rv;
- }
- *ptr++ = c;
- }
- }
-
- f->pos += rv;
-
- return rv;
-}
-
-
-
-int dumbfile_seek(DUMBFILE *f, long n, int origin)
-{- switch ( origin )
- {- case DFS_SEEK_CUR: n += f->pos; break;
- case DFS_SEEK_END: n += (*f->dfs->get_size)(f->file); break;
- }
- f->pos = n;
- return (*f->dfs->seek)(f->file, n);
-}
-
-
-
-long dumbfile_get_size(DUMBFILE *f)
-{- return (*f->dfs->get_size)(f->file);
-}
-
-
-
-int dumbfile_error(DUMBFILE *f)
-{- ASSERT(f);
-
- return f->pos < 0;
-}
-
-
-
-int dumbfile_close(DUMBFILE *f)
-{- int rv;
-
- ASSERT(f);
-
- rv = f->pos < 0;
-
- if (f->dfs->close)
- (*f->dfs->close)(f->file);
-
- free(f);
-
- return rv;
-}
--- a/dumb/src/core/loadduh.c
+++ /dev/null
@@ -1,42 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadduh.c - Code to read a DUH from a file, / / \ \
- * opening and closing the file for | < / \_
- * you. | \/ /\ /
- * \_ / > /
- * By entheh. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/dumb.h"
-
-
-
-/* load_duh(): loads a .duh file, returning a pointer to a DUH struct.
- * When you have finished with it, you must pass the pointer to unload_duh()
- * so that the memory can be freed.
- */
-DUH *load_duh(const char *filename)
-{- DUH *duh;
- DUMBFILE *f = dumbfile_open(filename);
-
- if (!f)
- return NULL;
-
- duh = read_duh(f);
-
- dumbfile_close(f);
-
- return duh;
-}
--- a/dumb/src/core/makeduh.c
+++ /dev/null
@@ -1,151 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * makeduh.c - Function to construct a DUH from / / \ \
- * its components. | < / \_
- * | \/ /\ /
- * By entheh. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "dumb.h"
-#include "internal/dumb.h"
-
-
-
-static DUH_SIGNAL *make_signal(DUH_SIGTYPE_DESC *desc, sigdata_t *sigdata)
-{- DUH_SIGNAL *signal;
-
- ASSERT((desc->start_sigrenderer && desc->end_sigrenderer) || (!desc->start_sigrenderer && !desc->end_sigrenderer));
- ASSERT(desc->sigrenderer_generate_samples && desc->sigrenderer_get_current_sample);
-
- signal = malloc(sizeof(*signal));
-
- if (!signal) {- if (desc->unload_sigdata)
- if (sigdata)
- (*desc->unload_sigdata)(sigdata);
- return NULL;
- }
-
- signal->desc = desc;
- signal->sigdata = sigdata;
-
- return signal;
-}
-
-
-
-DUH *make_duh(
- long length,
- int n_tags,
- const char *const tags[][2],
- int n_signals,
- DUH_SIGTYPE_DESC *desc[],
- sigdata_t *sigdata[]
-)
-{- DUH *duh = malloc(sizeof(*duh));
- int i;
- int fail;
-
- if (duh) {- duh->n_signals = n_signals;
-
- duh->signal = malloc(n_signals * sizeof(*duh->signal));
-
- if (!duh->signal) {- free(duh);
- duh = NULL;
- }
- }
-
- if (!duh) {- for (i = 0; i < n_signals; i++)
- if (desc[i]->unload_sigdata)
- if (sigdata[i])
- (*desc[i]->unload_sigdata)(sigdata[i]);
- return NULL;
- }
-
- duh->n_tags = 0;
- duh->tag = NULL;
-
- fail = 0;
-
- for (i = 0; i < n_signals; i++) {- duh->signal[i] = make_signal(desc[i], sigdata[i]);
- if (!duh->signal[i])
- fail = 1;
- }
-
- if (fail) {- unload_duh(duh);
- return NULL;
- }
-
- duh->length = length;
-
- {- int mem = n_tags * 2; /* account for NUL terminators here */
- char *ptr;
-
- for (i = 0; i < n_tags; i++)
- mem += strlen(tags[i][0]) + strlen(tags[i][1]);
-
- if (mem <= 0) return duh;
-
- duh->tag = malloc(n_tags * sizeof(*duh->tag));
- if (!duh->tag) return duh;
- duh->tag[0][0] = malloc(mem);
- if (!duh->tag[0][0]) {- free(duh->tag);
- duh->tag = NULL;
- return duh;
- }
- duh->n_tags = n_tags;
- ptr = duh->tag[0][0];
- for (i = 0; i < n_tags; i++) {- duh->tag[i][0] = ptr;
- strcpy(ptr, tags[i][0]);
- ptr += strlen(tags[i][0]) + 1;
- duh->tag[i][1] = ptr;
- strcpy(ptr, tags[i][1]);
- ptr += strlen(tags[i][1]) + 1;
- }
- }
-
- return duh;
-}
-
-int duh_add_signal(DUH *duh, DUH_SIGTYPE_DESC *desc, sigdata_t *sigdata)
-{- DUH_SIGNAL **signal;
-
- if ( !duh || !desc || !sigdata ) return -1;
-
- signal = ( DUH_SIGNAL ** ) realloc( duh->signal, ( duh->n_signals + 1 ) * sizeof( *duh->signal ) );
- if ( !signal ) return -1;
- duh->signal = signal;
-
- memmove( signal + 1, signal, duh->n_signals * sizeof( *signal ) );
- duh->n_signals++;
-
- signal[ 0 ] = make_signal( desc, sigdata );
- if ( !signal[ 0 ] ) return -1;
-
- return 0;
-}
--- a/dumb/src/core/rawsig.c
+++ /dev/null
@@ -1,58 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * rawsig.c - Function to retrieve raw signal / / \ \
- * data from a DUH provided you know | < / \_
- * what type of signal it is. | \/ /\ /
- * \_ / > /
- * By entheh. | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-
-#include "dumb.h"
-#include "internal/dumb.h"
-
-
-
-/* You have to specify the type of sigdata, proving you know what to do with
- * the pointer. If you get it wrong, you can expect NULL back.
- */
-sigdata_t *duh_get_raw_sigdata(DUH *duh, int sig, long type)
-{- int i;
- DUH_SIGNAL *signal;
-
- if (!duh) return NULL;
-
- if ( sig >= 0 )
- {- if ((unsigned int)sig >= (unsigned int)duh->n_signals) return NULL;
-
- signal = duh->signal[sig];
-
- if (signal && signal->desc->type == type)
- return signal->sigdata;
- }
- else
- {- for ( i = 0; i < duh->n_signals; i++ )
- {- signal = duh->signal[i];
-
- if (signal && signal->desc->type == type)
- return signal->sigdata;
- }
- }
-
- return NULL;
-}
--- a/dumb/src/core/readduh.c
+++ /dev/null
@@ -1,107 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readduh.c - Code to read a DUH from an open / / \ \
- * file. | < / \_
- * | \/ /\ /
- * By entheh. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-
-#include "dumb.h"
-#include "internal/dumb.h"
-
-
-
-static DUH_SIGNAL *read_signal(DUH *duh, DUMBFILE *f)
-{- DUH_SIGNAL *signal;
- long type;
-
- signal = malloc(sizeof(*signal));
-
- if (!signal)
- return NULL;
-
- type = dumbfile_mgetl(f);
- if (dumbfile_error(f)) {- free(signal);
- return NULL;
- }
-
- signal->desc = _dumb_get_sigtype_desc(type);
- if (!signal->desc) {- free(signal);
- return NULL;
- }
-
- if (signal->desc->load_sigdata) {- signal->sigdata = (*signal->desc->load_sigdata)(duh, f);
- if (!signal->sigdata) {- free(signal);
- return NULL;
- }
- } else
- signal->sigdata = NULL;
-
- return signal;
-}
-
-
-
-/* read_duh(): reads a DUH from an already open DUMBFILE, and returns its
- * pointer, or null on error. The file is not closed.
- */
-DUH *read_duh(DUMBFILE *f)
-{- DUH *duh;
- int i;
-
- if (dumbfile_mgetl(f) != DUH_SIGNATURE)
- return NULL;
-
- duh = malloc(sizeof(*duh));
- if (!duh)
- return NULL;
-
- duh->length = dumbfile_igetl(f);
- if (dumbfile_error(f) || duh->length <= 0) {- free(duh);
- return NULL;
- }
-
- duh->n_signals = dumbfile_igetl(f);
- if (dumbfile_error(f) || duh->n_signals <= 0) {- free(duh);
- return NULL;
- }
-
- duh->signal = malloc(sizeof(*duh->signal) * duh->n_signals);
- if (!duh->signal) {- free(duh);
- return NULL;
- }
-
- for (i = 0; i < duh->n_signals; i++)
- duh->signal[i] = NULL;
-
- for (i = 0; i < duh->n_signals; i++) {- if (!(duh->signal[i] = read_signal(duh, f))) {- unload_duh(duh);
- return NULL;
- }
- }
-
- return duh;
-}
--- a/dumb/src/core/register.c
+++ /dev/null
@@ -1,104 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * register.c - Signal type registration. / / \ \
- * | < / \_
- * By entheh. | \/ /\ /
- * \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-
-#include "dumb.h"
-#include "internal/dumb.h"
-
-
-
-static DUH_SIGTYPE_DESC_LINK *sigtype_desc = NULL;
-static DUH_SIGTYPE_DESC_LINK **sigtype_desc_tail = &sigtype_desc;
-
-
-
-/* destroy_sigtypes(): frees all memory allocated while registering signal
- * types. This function is set up to be called by dumb_exit().
- */
-static void destroy_sigtypes(void)
-{- DUH_SIGTYPE_DESC_LINK *desc_link = sigtype_desc, *next;
- sigtype_desc = NULL;
- sigtype_desc_tail = &sigtype_desc;
-
- while (desc_link) {- next = desc_link->next;
- free(desc_link);
- desc_link = next;
- }
-}
-
-
-
-/* dumb_register_sigtype(): registers a new signal type with DUMB. The signal
- * type is identified by a four-character string (e.g. "WAVE"), which you can
- * encode using the the DUMB_ID() macro (e.g. DUMB_ID('W','A','V','E')). The- * signal's behaviour is defined by four functions, whose pointers you pass
- * here. See the documentation for details.
- *
- * If a DUH tries to use a signal that has not been registered using this
- * function, then the library will fail to load the DUH.
- */
-void dumb_register_sigtype(DUH_SIGTYPE_DESC *desc)
-{- DUH_SIGTYPE_DESC_LINK *desc_link = sigtype_desc;
-
- ASSERT((desc->load_sigdata && desc->unload_sigdata) || (!desc->load_sigdata && !desc->unload_sigdata));
- ASSERT((desc->start_sigrenderer && desc->end_sigrenderer) || (!desc->start_sigrenderer && !desc->end_sigrenderer));
- ASSERT(desc->sigrenderer_generate_samples && desc->sigrenderer_get_current_sample);
-
- if (desc_link) {- do {- if (desc_link->desc->type == desc->type) {- desc_link->desc = desc;
- return;
- }
- desc_link = desc_link->next;
- } while (desc_link);
- } else
- dumb_atexit(&destroy_sigtypes);
-
- desc_link = *sigtype_desc_tail = malloc(sizeof(DUH_SIGTYPE_DESC_LINK));
-
- if (!desc_link)
- return;
-
- desc_link->next = NULL;
- sigtype_desc_tail = &desc_link->next;
-
- desc_link->desc = desc;
-}
-
-
-
-/* _dumb_get_sigtype_desc(): searches the registered functions for a signal
- * type matching the parameter. If such a sigtype is found, it returns a
- * pointer to a sigtype descriptor containing the necessary functions to
- * manage the signal. If none is found, it returns NULL.
- */
-DUH_SIGTYPE_DESC *_dumb_get_sigtype_desc(long type)
-{- DUH_SIGTYPE_DESC_LINK *desc_link = sigtype_desc;
-
- while (desc_link && desc_link->desc->type != type)
- desc_link = desc_link->next;
-
- return desc_link ? desc_link->desc : NULL;
-}
--- a/dumb/src/core/rendduh.c
+++ /dev/null
@@ -1,331 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * rendduh.c - Functions for rendering a DUH into / / \ \
- * an end-user sample format. | < / \_
- * | \/ /\ /
- * By entheh. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include <limits.h>
-
-#include "dumb.h"
-#include "internal/dumb.h"
-
-
-
-/* On the x86, we can use some tricks to speed stuff up */
-#if (defined _MSC_VER) || (defined __DJGPP__) || (defined __MINGW__)
-// Can't we detect Linux and other x86 platforms here? :/
-
-#define FAST_MID(var, min, max) { \- var -= (min); \
- var &= (~var) >> (sizeof(var) * CHAR_BIT - 1); \
- var += (min); \
- var -= (max); \
- var &= var >> (sizeof(var) * CHAR_BIT - 1); \
- var += (max); \
-}
-
-#define CONVERT8(src, pos, signconv) { \- signed int f = (src + 0x8000) >> 16; \
- FAST_MID(f, -128, 127); \
- ((char*)sptr)[pos] = (char)f ^ signconv; \
-}
-
-#define CONVERT16(src, pos, signconv) { \- signed int f = (src + 0x80) >> 8; \
- FAST_MID(f, -32768, 32767); \
- ((short*)sptr)[pos] = (short)(f ^ signconv); \
-}
-
-#else
-
-#define CONVERT8(src, pos, signconv) \
-{ \- signed int f = (src + 0x8000) >> 16; \
- f = MID(-128, f, 127); \
- ((char *)sptr)[pos] = (char)f ^ signconv; \
-}
-
-
-
-#define CONVERT16(src, pos, signconv) \
-{ \- signed int f = (src + 0x80) >> 8; \
- f = MID(-32768, f, 32767); \
- ((short *)sptr)[pos] = (short)(f ^ signconv); \
-}
-
-#endif
-
-#define CONVERT24(src, pos) { \- signed int f = src; \
- f = MID(-8388608, f, 8388607); \
- ((unsigned char*)sptr)[pos ] = (f) & 0xFF; \
- ((unsigned char*)sptr)[pos+1] = (f >> 8) & 0xFF; \
- ((unsigned char*)sptr)[pos+2] = (f >> 16) & 0xFF; \
-}
-
-#define CONVERT32F(src, pos) { \- ((float*)sptr)[pos] = (float)((signed int)src) * (1.0f/(float)(0xffffff/2+1)); \
-}
-
-#define CONVERT64F(src, pos) { \- ((double*)sptr)[pos] = (double)((signed int)src) * (1.0/(double)(0xffffff/2+1)); \
-}
-
-
-/* DEPRECATED */
-DUH_SIGRENDERER *duh_start_renderer(DUH *duh, int n_channels, long pos)
-{- return duh_start_sigrenderer(duh, 0, n_channels, pos);
-}
-
-
-/* DEPRECATED */
-long duh_render(
- DUH_SIGRENDERER *sigrenderer,
- int bits, int unsign,
- float volume, float delta,
- long size, void *sptr
-)
-{- long n;
-
- sample_t **sampptr;
-
- int n_channels;
-
- ASSERT(bits == 8 || bits == 16);
- ASSERT(sptr);
-
- if (!sigrenderer)
- return 0;
-
- n_channels = duh_sigrenderer_get_n_channels(sigrenderer);
-
- ASSERT(n_channels > 0);
- /* This restriction will be removed when need be. At the moment, tightly
- * optimised loops exist for exactly one or two channels.
- */
- ASSERT(n_channels <= 2);
-
- sampptr = allocate_sample_buffer(n_channels, size);
-
- if (!sampptr)
- return 0;
-
- dumb_silence(sampptr[0], n_channels * size);
-
- size = duh_sigrenderer_generate_samples(sigrenderer, volume, delta, size, sampptr);
-
- if (bits == 16) {- int signconv = unsign ? 0x8000 : 0x0000;
-
- for (n = 0; n < size * n_channels; n++) {- CONVERT16(sampptr[0][n], n, signconv);
- }
- } else {- char signconv = unsign ? 0x80 : 0x00;
-
- for (n = 0; n < size * n_channels; n++) {- CONVERT8(sampptr[0][n], n, signconv);
- }
- }
-
- destroy_sample_buffer(sampptr);
-
- return size;
-}
-
-
-long duh_render_int(
- DUH_SIGRENDERER *sigrenderer,
- sample_t ***sig_samples,
- long *sig_samples_size,
- int bits, int unsign,
- float volume, float delta,
- long size, void *sptr
-)
-{- long n;
-
- sample_t **sampptr;
-
- int n_channels;
-
- ASSERT(bits == 8 || bits == 16 || bits == 24);
- ASSERT(sptr);
- ASSERT(sig_samples);
- ASSERT(sig_samples_size);
-
- if (!sigrenderer)
- return 0;
-
- n_channels = duh_sigrenderer_get_n_channels(sigrenderer);
-
- ASSERT(n_channels > 0);
- /* This restriction will be removed when need be. At the moment, tightly
- * optimised loops exist for exactly one or two channels.
- */
- ASSERT(n_channels <= 2);
-
- if ((*sig_samples == NULL) || (*sig_samples_size != size))
- {- destroy_sample_buffer(*sig_samples);
- *sig_samples = allocate_sample_buffer(n_channels, size);
- *sig_samples_size = size;
- }
- sampptr = *sig_samples;
-
- if (!sampptr)
- return 0;
-
- dumb_silence(sampptr[0], n_channels * size);
-
- size = duh_sigrenderer_generate_samples(sigrenderer, volume, delta, size, sampptr);
-
- if (bits == 24) {- long i = 0;
- ASSERT(unsign == 0);
-
- for (n = 0; n < size * n_channels; n++, i += 3) {- CONVERT24(sampptr[0][n], i);
- }
- } else
- if (bits == 16) {- int signconv = unsign ? 0x8000 : 0x0000;
-
- for (n = 0; n < size * n_channels; n++) {- CONVERT16(sampptr[0][n], n, signconv);
- }
- } else {- char signconv = unsign ? 0x80 : 0x00;
-
- for (n = 0; n < size * n_channels; n++) {- CONVERT8(sampptr[0][n], n, signconv);
- }
- }
-
- return size;
-}
-
-
-long duh_render_float(
- DUH_SIGRENDERER *sigrenderer,
- sample_t ***sig_samples,
- long *sig_samples_size,
- int bits,
- float volume, float delta,
- long size, void *sptr
-)
-{- long n;
-
- sample_t **sampptr;
-
- int n_channels;
-
- ASSERT(bits == 32 || bits == 64);
- ASSERT(sptr);
- ASSERT(sig_samples);
- ASSERT(sig_samples_size);
-
- if (!sigrenderer)
- return 0;
-
- n_channels = duh_sigrenderer_get_n_channels(sigrenderer);
-
- ASSERT(n_channels > 0);
- /* This restriction will be removed when need be. At the moment, tightly
- * optimised loops exist for exactly one or two channels.
- */
- ASSERT(n_channels <= 2);
-
- if ((*sig_samples == NULL) || (*sig_samples_size != size))
- {- destroy_sample_buffer(*sig_samples);
- *sig_samples = allocate_sample_buffer(n_channels, size);
- *sig_samples_size = size;
- }
- sampptr = *sig_samples;
-
- if (!sampptr)
- return 0;
-
- dumb_silence(sampptr[0], n_channels * size);
-
- size = duh_sigrenderer_generate_samples(sigrenderer, volume, delta, size, sampptr);
-
- if (bits == 64) {- for (n = 0; n < size * n_channels; n++) {- CONVERT64F(sampptr[0][n], n);
- }
- } else
- if (bits == 32) {- for (n = 0; n < size * n_channels; n++) {- CONVERT32F(sampptr[0][n], n);
- }
- }
-
- return size;
-}
-
-
-/* DEPRECATED */
-int duh_renderer_get_n_channels(DUH_SIGRENDERER *dr)
-{- return duh_sigrenderer_get_n_channels(dr);
-}
-
-
-
-/* DEPRECATED */
-long duh_renderer_get_position(DUH_SIGRENDERER *dr)
-{- return duh_sigrenderer_get_position(dr);
-}
-
-
-
-/* DEPRECATED */
-void duh_end_renderer(DUH_SIGRENDERER *dr)
-{- duh_end_sigrenderer(dr);
-}
-
-
-
-/* DEPRECATED */
-DUH_SIGRENDERER *duh_renderer_encapsulate_sigrenderer(DUH_SIGRENDERER *sigrenderer)
-{- return sigrenderer;
-}
-
-
-
-/* DEPRECATED */
-DUH_SIGRENDERER *duh_renderer_get_sigrenderer(DUH_SIGRENDERER *dr)
-{- return dr;
-}
-
-
-
-/* DEPRECATED */
-DUH_SIGRENDERER *duh_renderer_decompose_to_sigrenderer(DUH_SIGRENDERER *dr)
-{- return dr;
-}
--- a/dumb/src/core/rendsig.c
+++ /dev/null
@@ -1,352 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * rendsig.c - Wrappers to render samples from / / \ \
- * the signals in a DUH. | < / \_
- * | \/ /\ /
- * By entheh. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-
-#include "dumb.h"
-#include "internal/dumb.h"
-
-
-
-struct DUH_SIGRENDERER
-{- DUH_SIGTYPE_DESC *desc;
-
- sigrenderer_t *sigrenderer;
-
- int n_channels;
-
- long pos;
- int subpos;
-
- DUH_SIGRENDERER_SAMPLE_ANALYSER_CALLBACK callback;
- void *callback_data;
-};
-
-
-
-DUH_SIGRENDERER *duh_start_sigrenderer(DUH *duh, int sig, int n_channels, long pos)
-{- DUH_SIGRENDERER *sigrenderer;
-
- DUH_SIGNAL *signal;
- DUH_START_SIGRENDERER proc;
-
- if (!duh)
- return NULL;
-
- if ((unsigned int)sig >= (unsigned int)duh->n_signals)
- return NULL;
-
- signal = duh->signal[sig];
- if (!signal)
- return NULL;
-
- sigrenderer = malloc(sizeof(*sigrenderer));
- if (!sigrenderer)
- return NULL;
-
- sigrenderer->desc = signal->desc;
-
- proc = sigrenderer->desc->start_sigrenderer;
-
- if (proc) {- duh->signal[sig] = NULL;
- sigrenderer->sigrenderer = (*proc)(duh, signal->sigdata, n_channels, pos);
- duh->signal[sig] = signal;
-
- if (!sigrenderer->sigrenderer) {- free(sigrenderer);
- return NULL;
- }
- } else
- sigrenderer->sigrenderer = NULL;
-
- sigrenderer->n_channels = n_channels;
-
- sigrenderer->pos = pos;
- sigrenderer->subpos = 0;
-
- sigrenderer->callback = NULL;
-
- return sigrenderer;
-}
-
-
-
-#include <stdio.h>
-void duh_sigrenderer_set_callback(
- DUH_SIGRENDERER *sigrenderer,
- DUH_SIGRENDERER_CALLBACK callback, void *data
-)
-{- (void)sigrenderer;
- (void)callback;
- (void)data;
- /*fprintf(stderr,
- "Call to deprecated function duh_sigrenderer_set_callback(). The callback\n"
- "was not installed. See dumb/docs/deprec.txt for how to fix this.\n");*/
-}
-
-
-
-void duh_sigrenderer_set_analyser_callback(
- DUH_SIGRENDERER *sigrenderer,
- DUH_SIGRENDERER_ANALYSER_CALLBACK callback, void *data
-)
-{- (void)sigrenderer;
- (void)callback;
- (void)data;
- fprintf(stderr,
- "Call to deprecated function duh_sigrenderer_set_analyser_callback(). The\n"
- "callback was not installed. See dumb/docs/deprec.txt for how to fix this.\n");
-}
-
-
-
-void duh_sigrenderer_set_sample_analyser_callback(
- DUH_SIGRENDERER *sigrenderer,
- DUH_SIGRENDERER_SAMPLE_ANALYSER_CALLBACK callback, void *data
-)
-{- if (sigrenderer) {- sigrenderer->callback = callback;
- sigrenderer->callback_data = data;
- }
-}
-
-
-
-int duh_sigrenderer_get_n_channels(DUH_SIGRENDERER *sigrenderer)
-{- return sigrenderer ? sigrenderer->n_channels : 0;
-}
-
-
-
-long duh_sigrenderer_get_position(DUH_SIGRENDERER *sigrenderer)
-{- DUH_SIGRENDERER_GET_POSITION proc;
-
- if (!sigrenderer) return -1;
-
- proc = sigrenderer->desc->sigrenderer_get_position;
- if (proc)
- return (*proc)(sigrenderer->sigrenderer);
- else
- return sigrenderer->pos;
-}
-
-
-
-void duh_sigrenderer_set_sigparam(
- DUH_SIGRENDERER *sigrenderer,
- unsigned char id, long value
-)
-{- DUH_SIGRENDERER_SET_SIGPARAM proc;
-
- if (!sigrenderer) return;
-
- proc = sigrenderer->desc->sigrenderer_set_sigparam;
- if (proc)
- (*proc)(sigrenderer->sigrenderer, id, value);
- else
- TRACE("Parameter #%d = %ld for signal %c%c%c%c, which does not take parameters.\n",- (int)id,
- value,
- (int)(sigrenderer->desc->type >> 24),
- (int)(sigrenderer->desc->type >> 16),
- (int)(sigrenderer->desc->type >> 8),
- (int)(sigrenderer->desc->type));
-}
-
-
-
-long duh_sigrenderer_generate_samples(
- DUH_SIGRENDERER *sigrenderer,
- float volume, float delta,
- long size, sample_t **samples
-)
-{- long rendered;
- LONG_LONG t;
-
- if (!sigrenderer) return 0;
-
- rendered = (*sigrenderer->desc->sigrenderer_generate_samples)
- (sigrenderer->sigrenderer, volume, delta, size, samples);
-
- if (rendered) {- if (sigrenderer->callback)
- (*sigrenderer->callback)(sigrenderer->callback_data,
- (const sample_t *const *)samples, sigrenderer->n_channels, rendered);
-
- t = sigrenderer->subpos + (LONG_LONG)(delta * 65536.0 + 0.5) * rendered;
-
- sigrenderer->pos += (long)(t >> 16);
- sigrenderer->subpos = (int)t & 65535;
- }
-
- return rendered;
-}
-
-
-
-/* DEPRECATED */
-long duh_sigrenderer_get_samples(
- DUH_SIGRENDERER *sigrenderer,
- float volume, float delta,
- long size, sample_t **samples
-)
-{- sample_t **s;
- long rendered;
- long i;
- int j;
- if (!samples) return duh_sigrenderer_generate_samples(sigrenderer, volume, delta, size, NULL);
- s = allocate_sample_buffer(sigrenderer->n_channels, size);
- if (!s) return 0;
- dumb_silence(s[0], sigrenderer->n_channels * size);
- rendered = duh_sigrenderer_generate_samples(sigrenderer, volume, delta, size, s);
- for (j = 0; j < sigrenderer->n_channels; j++)
- for (i = 0; i < rendered; i++)
- samples[j][i] += s[0][i*sigrenderer->n_channels+j];
- destroy_sample_buffer(s);
- return rendered;
-}
-
-
-
-/* DEPRECATED */
-long duh_render_signal(
- DUH_SIGRENDERER *sigrenderer,
- float volume, float delta,
- long size, sample_t **samples
-)
-{- sample_t **s;
- long rendered;
- long i;
- int j;
- if (!samples) return duh_sigrenderer_generate_samples(sigrenderer, volume, delta, size, NULL);
- s = allocate_sample_buffer(sigrenderer->n_channels, size);
- if (!s) return 0;
- dumb_silence(s[0], sigrenderer->n_channels * size);
- rendered = duh_sigrenderer_generate_samples(sigrenderer, volume, delta, size, s);
- for (j = 0; j < sigrenderer->n_channels; j++)
- for (i = 0; i < rendered; i++)
- samples[j][i] += s[0][i*sigrenderer->n_channels+j] >> 8;
- destroy_sample_buffer(s);
- return rendered;
-}
-
-
-
-void duh_sigrenderer_get_current_sample(DUH_SIGRENDERER *sigrenderer, float volume, sample_t *samples)
-{- if (sigrenderer)
- (*sigrenderer->desc->sigrenderer_get_current_sample)(sigrenderer->sigrenderer, volume, samples);
-}
-
-
-
-void duh_end_sigrenderer(DUH_SIGRENDERER *sigrenderer)
-{- if (sigrenderer) {- if (sigrenderer->desc->end_sigrenderer)
- if (sigrenderer->sigrenderer)
- (*sigrenderer->desc->end_sigrenderer)(sigrenderer->sigrenderer);
-
- free(sigrenderer);
- }
-}
-
-
-
-DUH_SIGRENDERER *duh_encapsulate_raw_sigrenderer(sigrenderer_t *vsigrenderer, DUH_SIGTYPE_DESC *desc, int n_channels, long pos)
-{- DUH_SIGRENDERER *sigrenderer;
-
- if (desc->start_sigrenderer && !vsigrenderer) return NULL;
-
- sigrenderer = malloc(sizeof(*sigrenderer));
- if (!sigrenderer) {- if (desc->end_sigrenderer)
- if (vsigrenderer)
- (*desc->end_sigrenderer)(vsigrenderer);
- return NULL;
- }
-
- sigrenderer->desc = desc;
- sigrenderer->sigrenderer = vsigrenderer;
-
- sigrenderer->n_channels = n_channels;
-
- sigrenderer->pos = pos;
- sigrenderer->subpos = 0;
-
- sigrenderer->callback = NULL;
-
- return sigrenderer;
-}
-
-
-
-sigrenderer_t *duh_get_raw_sigrenderer(DUH_SIGRENDERER *sigrenderer, long type)
-{- if (sigrenderer && sigrenderer->desc->type == type)
- return sigrenderer->sigrenderer;
-
- return NULL;
-}
-
-
-
-#if 0
-// This function is disabled because we don't know whether we want to destroy
-// the sigrenderer if the type doesn't match. We don't even know if we need
-// the function at all. Who would want to keep an IT_SIGRENDERER (for
-// instance) without keeping the DUH_SIGRENDERER?
-sigrenderer_t *duh_decompose_to_raw_sigrenderer(DUH_SIGRENDERER *sigrenderer, long type)
-{- if (sigrenderer && sigrenderer->desc->type == type) {-
-
-
- if (sigrenderer) {- if (sigrenderer->desc->end_sigrenderer)
- if (sigrenderer->sigrenderer)
- (*sigrenderer->desc->end_sigrenderer)(sigrenderer->sigrenderer);
-
- free(sigrenderer);
- }
-
-
-
-
-
-
- return sigrenderer->sigrenderer;
- }
-
- return NULL;
-}
-#endif
--- a/dumb/src/core/unload.c
+++ /dev/null
@@ -1,64 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * unload.c - Code to free a DUH from memory. / / \ \
- * | < / \_
- * By entheh. | \/ /\ /
- * \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-
-#include "dumb.h"
-#include "internal/dumb.h"
-
-
-
-static void destroy_signal(DUH_SIGNAL *signal)
-{- if (signal) {- if (signal->desc)
- if (signal->desc->unload_sigdata)
- if (signal->sigdata)
- (*signal->desc->unload_sigdata)(signal->sigdata);
-
- free(signal);
- }
-}
-
-
-
-/* unload_duh(): destroys a DUH struct. You must call this for every DUH
- * struct created, when you've finished with it.
- */
-void unload_duh(DUH *duh)
-{- int i;
-
- if (duh) {- if (duh->signal) {- for (i = 0; i < duh->n_signals; i++)
- destroy_signal(duh->signal[i]);
-
- free(duh->signal);
- }
-
- if (duh->tag) {- if (duh->tag[0][0])
- free(duh->tag[0][0]);
- free(duh->tag);
- }
-
- free(duh);
- }
-}
--- a/dumb/src/helpers/barray.c
+++ /dev/null
@@ -1,189 +1,0 @@
-#include "internal/barray.h"
-
-#include <string.h>
-
-
-void * bit_array_create(size_t size)
-{- size_t bsize = ((size + 7) >> 3) + sizeof(size_t);
- void * ret = calloc(1, bsize);
- if (ret) *(size_t *)ret = size;
- return ret;
-}
-
-void bit_array_destroy(void * array)
-{- if (array) free(array);
-}
-
-void * bit_array_dup(void * array)
-{- if (array)
- {- size_t * size = (size_t *) array;
- size_t bsize = ((*size + 7) >> 3) + sizeof(*size);
- void * ret = malloc(bsize);
- if (ret) memcpy(ret, array, bsize);
- return ret;
- }
- return NULL;
-}
-
-void bit_array_reset(void * array)
-{- if (array)
- {- size_t * size = (size_t *) array;
- size_t bsize = (*size + 7) >> 3;
- memset(size + 1, 0, bsize);
- }
-}
-
-
-void bit_array_set(void * array, size_t bit)
-{- if (array)
- {- size_t * size = (size_t *) array;
- if (bit < *size)
- {- unsigned char * ptr = (unsigned char *)(size + 1);
- ptr[bit >> 3] |= (1U << (bit & 7));
- }
- }
-}
-
-void bit_array_set_range(void * array, size_t bit, size_t count)
-{- if (array && count)
- {- size_t * size = (size_t *) array;
- if (bit < *size)
- {- unsigned char * ptr = (unsigned char *)(size + 1);
- size_t i;
- for (i = bit; i < *size && i < bit + count; ++i)
- ptr[i >> 3] |= (1U << (i & 7));
- }
- }
-}
-
-int bit_array_test(void * array, size_t bit)
-{- if (array)
- {- size_t * size = (size_t *) array;
- if (bit < *size)
- {- unsigned char * ptr = (unsigned char *)(size + 1);
- if (ptr[bit >> 3] & (1U << (bit & 7)))
- {- return 1;
- }
- }
- }
- return 0;
-}
-
-int bit_array_test_range(void * array, size_t bit, size_t count)
-{- if (array)
- {- size_t * size = (size_t *) array;
- if (bit < *size)
- {- unsigned char * ptr = (unsigned char *)(size + 1);
- if ((bit & 7) && (count > 8))
- {- while ((bit < *size) && count && (bit & 7))
- {- if (ptr[bit >> 3] & (1U << (bit & 7))) return 1;
- bit++;
- count--;
- }
- }
- if (!(bit & 7))
- {- while (((*size - bit) >= 8) && (count >= 8))
- {- if (ptr[bit >> 3]) return 1;
- bit += 8;
- count -= 8;
- }
- }
- while ((bit < *size) && count)
- {- if (ptr[bit >> 3] & (1U << (bit & 7))) return 1;
- bit++;
- count--;
- }
- }
- }
- return 0;
-}
-
-void bit_array_clear(void * array, size_t bit)
-{- if (array)
- {- size_t * size = (size_t *) array;
- if (bit < *size)
- {- unsigned char * ptr = (unsigned char *)(size + 1);
- ptr[bit >> 3] &= ~(1U << (bit & 7));
- }
- }
-}
-
-void bit_array_clear_range(void * array, size_t bit, size_t count)
-{- if (array && count)
- {- size_t * size = (size_t *) array;
- if (bit < *size)
- {- unsigned char * ptr = (unsigned char *)(size + 1);
- size_t i;
- for (i = bit; i < *size && i < bit + count; ++i)
- ptr[i >> 3] &= ~(1U << (i & 7));
- }
- }
-}
-
-void bit_array_merge(void * dest, void * source, size_t offset)
-{- if (dest && source)
- {- size_t * dsize = (size_t *) dest;
- size_t * ssize = (size_t *) source;
- size_t soffset = 0;
- while (offset < *dsize && soffset < *ssize)
- {- if (bit_array_test(source, soffset))
- {- bit_array_set(dest, offset);
- }
- soffset++;
- offset++;
- }
- }
-}
-
-void bit_array_mask(void * dest, void * source, size_t offset)
-{- if (dest && source)
- {- size_t * dsize = (size_t *) dest;
- size_t * ssize = (size_t *) source;
- size_t soffset = 0;
- while (offset < *dsize && soffset < *ssize)
- {- if (bit_array_test(source, soffset))
- {- bit_array_clear(dest, offset);
- }
- soffset++;
- offset++;
- }
- }
-}
--- a/dumb/src/helpers/clickrem.c
+++ /dev/null
@@ -1,281 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * clickrem.c - Click removal helpers. / / \ \
- * | < / \_
- * By entheh. | \/ /\ /
- * \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include <math.h>
-#include "dumb.h"
-
-
-
-typedef struct DUMB_CLICK DUMB_CLICK;
-
-
-struct DUMB_CLICK_REMOVER
-{- DUMB_CLICK *click;
- int n_clicks;
-
- int offset;
-};
-
-
-struct DUMB_CLICK
-{- DUMB_CLICK *next;
- long pos;
- sample_t step;
-};
-
-
-
-DUMB_CLICK_REMOVER *dumb_create_click_remover(void)
-{- DUMB_CLICK_REMOVER *cr = malloc(sizeof(*cr));
- if (!cr) return NULL;
-
- cr->click = NULL;
- cr->n_clicks = 0;
-
- cr->offset = 0;
-
- return cr;
-}
-
-
-
-void dumb_record_click(DUMB_CLICK_REMOVER *cr, long pos, sample_t step)
-{- DUMB_CLICK *click;
-
- ASSERT(pos >= 0);
-
- if (!cr || !step) return;
-
- if (pos == 0) {- cr->offset -= step;
- return;
- }
-
- click = malloc(sizeof(*click));
- if (!click) return;
-
- click->pos = pos;
- click->step = step;
-
- click->next = cr->click;
- cr->click = click;
- cr->n_clicks++;
-}
-
-
-
-static DUMB_CLICK *dumb_click_mergesort(DUMB_CLICK *click, int n_clicks)
-{- int i;
- DUMB_CLICK *c1, *c2, **cp;
-
- if (n_clicks <= 1) return click;
-
- /* Split the list into two */
- c1 = click;
- cp = &c1;
- for (i = 0; i < n_clicks; i += 2) cp = &(*cp)->next;
- c2 = *cp;
- *cp = NULL;
-
- /* Sort the sublists */
- c1 = dumb_click_mergesort(c1, (n_clicks + 1) >> 1);
- c2 = dumb_click_mergesort(c2, n_clicks >> 1);
-
- /* Merge them */
- cp = &click;
- while (c1 && c2) {- if (c1->pos > c2->pos) {- *cp = c2;
- c2 = c2->next;
- } else {- *cp = c1;
- c1 = c1->next;
- }
- cp = &(*cp)->next;
- }
- if (c2)
- *cp = c2;
- else
- *cp = c1;
-
- return click;
-}
-
-
-
-void dumb_remove_clicks(DUMB_CLICK_REMOVER *cr, sample_t *samples, long length, int step, float halflife)
-{- DUMB_CLICK *click;
- long pos = 0;
- int offset;
- int factor;
-
- if (!cr) return;
-
- factor = (int)floor(pow(0.5, 1.0/halflife) * (1U << 31));
-
- click = dumb_click_mergesort(cr->click, cr->n_clicks);
- cr->click = NULL;
- cr->n_clicks = 0;
-
- length *= step;
-
- while (click) {- DUMB_CLICK *next = click->next;
- int end = click->pos * step;
- ASSERT(end <= length);
- offset = cr->offset;
- if (offset < 0) {- offset = -offset;
- while (pos < end) {- samples[pos] -= offset;
- offset = (int)(((LONG_LONG)(offset << 1) * factor) >> 32);
- pos += step;
- }
- offset = -offset;
- } else {- while (pos < end) {- samples[pos] += offset;
- offset = (int)(((LONG_LONG)(offset << 1) * factor) >> 32);
- pos += step;
- }
- }
- cr->offset = offset - click->step;
- free(click);
- click = next;
- }
-
- offset = cr->offset;
- if (offset < 0) {- offset = -offset;
- while (pos < length) {- samples[pos] -= offset;
- offset = (int)((LONG_LONG)(offset << 1) * factor >> 32);
- pos += step;
- }
- offset = -offset;
- } else {- while (pos < length) {- samples[pos] += offset;
- offset = (int)((LONG_LONG)(offset << 1) * factor >> 32);
- pos += step;
- }
- }
- cr->offset = offset;
-}
-
-
-
-sample_t dumb_click_remover_get_offset(DUMB_CLICK_REMOVER *cr)
-{- return cr ? cr->offset : 0;
-}
-
-
-
-void dumb_destroy_click_remover(DUMB_CLICK_REMOVER *cr)
-{- if (cr) {- DUMB_CLICK *click = cr->click;
- while (click) {- DUMB_CLICK *next = click->next;
- free(click);
- click = next;
- }
- free(cr);
- }
-}
-
-
-
-DUMB_CLICK_REMOVER **dumb_create_click_remover_array(int n)
-{- int i;
- DUMB_CLICK_REMOVER **cr;
- if (n <= 0) return NULL;
- cr = malloc(n * sizeof(*cr));
- if (!cr) return NULL;
- for (i = 0; i < n; i++) cr[i] = dumb_create_click_remover();
- return cr;
-}
-
-
-
-void dumb_record_click_array(int n, DUMB_CLICK_REMOVER **cr, long pos, sample_t *step)
-{- if (cr) {- int i;
- for (i = 0; i < n; i++)
- dumb_record_click(cr[i], pos, step[i]);
- }
-}
-
-
-
-void dumb_record_click_negative_array(int n, DUMB_CLICK_REMOVER **cr, long pos, sample_t *step)
-{- if (cr) {- int i;
- for (i = 0; i < n; i++)
- dumb_record_click(cr[i], pos, -step[i]);
- }
-}
-
-
-
-void dumb_remove_clicks_array(int n, DUMB_CLICK_REMOVER **cr, sample_t **samples, long length, float halflife)
-{- if (cr) {- int i;
- for (i = 0; i < n >> 1; i++) {- dumb_remove_clicks(cr[i << 1], samples[i], length, 2, halflife);
- dumb_remove_clicks(cr[(i << 1) + 1], samples[i] + 1, length, 2, halflife);
- }
- if (n & 1)
- dumb_remove_clicks(cr[i << 1], samples[i], length, 1, halflife);
- }
-}
-
-
-
-void dumb_click_remover_get_offset_array(int n, DUMB_CLICK_REMOVER **cr, sample_t *offset)
-{- if (cr) {- int i;
- for (i = 0; i < n; i++)
- if (cr[i]) offset[i] += cr[i]->offset;
- }
-}
-
-
-
-void dumb_destroy_click_remover_array(int n, DUMB_CLICK_REMOVER **cr)
-{- if (cr) {- int i;
- for (i = 0; i < n; i++) dumb_destroy_click_remover(cr[i]);
- free(cr);
- }
-}
--- a/dumb/src/helpers/fir_resampler.c
+++ /dev/null
@@ -1,281 +1,0 @@
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include "internal/fir_resampler.h"
-
-enum { fir_width = 16 };-
-enum { fir_max_res = 1024 };-enum { fir_min_width = (fir_width < 4 ? 4 : fir_width) };-enum { fir_adj_width = fir_min_width / 4 * 4 + 2 };-enum { fir_stereo = 1 }; /* channel count, not boolean value */-enum { fir_write_offset = fir_adj_width * fir_stereo };-
-enum { fir_buffer_size = fir_width * 2 };-
-typedef short fir_impulse[fir_adj_width];
-
-/* exp slope to 31/32 of ln(8) */
-static const double fir_ratios[32] = {- 1.000, 1.067, 1.139, 1.215, 1.297, 1.384, 1.477, 1.576,
- 1.682, 1.795, 1.915, 2.044, 2.181, 2.327, 2.484, 2.650,
- 2.828, 3.018, 3.221, 3.437, 3.668, 3.914, 4.177, 4.458,
- 4.757, 5.076, 5.417, 5.781, 6.169, 6.583, 7.025, 7.497
-};
-
-static fir_impulse fir_impulses[32][fir_max_res];
-
-#undef PI
-#define PI 3.1415926535897932384626433832795029
-
-static void gen_sinc( double rolloff, int width, double offset, double spacing, double scale,
- int count, short* out )
-{- double const maxh = 256;
- double const step = PI / maxh * spacing;
- double const to_w = maxh * 2 / width;
- double const pow_a_n = pow( rolloff, maxh );
-
- double angle = (count / 2 - 1 + offset) * -step;
-
- scale /= maxh * 2;
-
- while ( count-- )
- {- double w;
- *out++ = 0;
- w = angle * to_w;
- if ( fabs( w ) < PI )
- {- double rolloff_cos_a = rolloff * cos( angle );
- double num = 1 - rolloff_cos_a -
- pow_a_n * cos( maxh * angle ) +
- pow_a_n * rolloff * cos( (maxh - 1) * angle );
- double den = 1 - rolloff_cos_a - rolloff_cos_a + rolloff * rolloff;
- double sinc = scale * num / den - scale;
-
- out [-1] = (short) (cos( w ) * sinc + sinc);
- }
- angle += step;
- }
-}
-
-typedef struct fir_resampler
-{- int write_pos, write_filled;
- int read_pos, read_filled;
- unsigned short phase;
- unsigned int phase_inc;
- unsigned int ratio_set;
- int buffer_in[fir_buffer_size * 2];
- int buffer_out[fir_buffer_size];
-} fir_resampler;
-
-void * fir_resampler_create()
-{- fir_resampler * r = ( fir_resampler * ) malloc( sizeof(fir_resampler) );
- if ( !r ) return 0;
-
- r->write_pos = 0;
- r->write_filled = 0;
- r->read_pos = 0;
- r->read_filled = 0;
- r->phase = 0;
- r->phase_inc = 0;
- r->ratio_set = 0;
- memset( r->buffer_in, 0, sizeof(r->buffer_in) );
- memset( r->buffer_out, 0, sizeof(r->buffer_out) );
-
- return r;
-}
-
-void fir_resampler_delete(void * _r)
-{- free( _r );
-}
-
-void * fir_resampler_dup(void * _r)
-{- fir_resampler * r_in = ( fir_resampler * ) _r;
- fir_resampler * r_out = ( fir_resampler * ) malloc( sizeof(fir_resampler) );
- if ( !r_out ) return 0;
-
- r_out->write_pos = r_in->write_pos;
- r_out->write_filled = r_in->write_filled;
- r_out->read_pos = r_in->read_pos;
- r_out->read_filled = r_in->read_filled;
- r_out->phase = r_in->phase;
- r_out->phase_inc = r_in->phase_inc;
- r_out->ratio_set = r_in->ratio_set;
- memcpy( r_out->buffer_in, r_in->buffer_in, sizeof(r_in->buffer_in) );
- memcpy( r_out->buffer_out, r_in->buffer_out, sizeof(r_in->buffer_out) );
-
- return r_out;
-}
-
-int fir_resampler_get_free_count(void *_r)
-{- fir_resampler * r = ( fir_resampler * ) _r;
- return fir_buffer_size - r->write_filled;
-}
-
-int fir_resampler_ready(void *_r)
-{- fir_resampler * r = ( fir_resampler * ) _r;
- return r->write_filled > fir_adj_width;
-}
-
-void fir_resampler_clear(void *_r)
-{- fir_resampler * r = ( fir_resampler * ) _r;
- r->write_pos = 0;
- r->write_filled = 0;
- r->read_pos = 0;
- r->read_filled = 0;
- r->phase = 0;
- memset( r->buffer_in, 0, sizeof(r->buffer_in) );
-}
-
-void fir_resampler_set_rate(void *_r, double new_factor)
-{- fir_resampler * r = ( fir_resampler * ) _r;
- r->phase_inc = (int)( new_factor * 65536.0 );
- r->ratio_set = 0;
- while ( r->ratio_set < 31 && new_factor > fir_ratios[ r->ratio_set ] ) r->ratio_set++;
-}
-
-void fir_resampler_write_sample(void *_r, short s)
-{- fir_resampler * r = ( fir_resampler * ) _r;
-
- if ( r->write_filled < fir_buffer_size )
- {- int s32 = s;
-
- r->buffer_in[ r->write_pos ] = s32;
- r->buffer_in[ r->write_pos + fir_buffer_size ] = s32;
-
- ++r->write_filled;
-
- r->write_pos = ( r->write_pos + 1 ) % fir_buffer_size;
- }
-}
-
-void fir_init()
-{- double const rolloff = 0.999;
- double const gain = 1.0;
-
- int const res = fir_max_res;
-
- int i;
-
- for (i = 0; i < 32; i++)
- {- double const ratio_ = fir_ratios[ i ];
-
- double fraction = 1.0 / (double)fir_max_res;
-
- double const filter = (ratio_ < 1.0) ? 1.0 : 1.0 / ratio_;
- double pos = 0.0;
- short* out = (short*) fir_impulses[ i ];
- int n;
- for ( n = res; --n >= 0; )
- {- gen_sinc( rolloff, (int) (fir_adj_width * filter + 1) & ~1, pos, filter,
- (double) (0x7FFF * gain * filter), (int) fir_adj_width, out );
- out += fir_adj_width;
-
- pos += fraction;
- }
- }
-}
-
-int fir_resampler_run(void *_r, int ** out_, int * out_end)
-{- fir_resampler * r = ( fir_resampler * ) _r;
- int in_size = r->write_filled;
- int const* in_ = r->buffer_in + fir_buffer_size + r->write_pos - r->write_filled;
- int used = 0;
- in_size -= fir_write_offset;
- if ( in_size > 0 )
- {- int* out = *out_;
- int const* in = in_;
- int const* const in_end = in + in_size;
- int phase = r->phase;
- int phase_inc = r->phase_inc;
- int ratio_set = r->ratio_set;
-
- do
- {- // accumulate in extended precision
- short const* imp = fir_impulses[ratio_set][(phase & 0xFFC0) >> 6];
- int pt = imp [0];
- int s = pt * in [0];
- int n;
- if ( out >= out_end )
- break;
- for ( n = (fir_adj_width - 2) / 2; n; --n )
- {- pt = imp [1];
- s += pt * in [1];
-
- // pre-increment more efficient on some RISC processors
- imp += 2;
- pt = imp [0];
- in += 2;
- s += pt * in [0];
- }
- pt = imp [1];
- s += pt * in [1];
-
- phase += phase_inc;
-
- in += (phase >> 16) - fir_adj_width + 2;
-
- phase &= 65535;
-
- *out++ = (int) (s >> 7);
- }
- while ( in < in_end );
-
- r->phase = phase;
- *out_ = out;
-
- used = in - in_;
-
- r->write_filled -= used;
- }
-
- return used;
-}
-
-int fir_resampler_get_sample(void *_r)
-{- fir_resampler * r = ( fir_resampler * ) _r;
- if ( r->read_filled < 1 )
- {- int write_pos = ( r->read_pos + r->read_filled ) % fir_buffer_size;
- int write_size = fir_buffer_size - write_pos;
- int * out = r->buffer_out + write_pos;
- if ( write_size > ( fir_buffer_size - r->read_filled ) )
- write_size = fir_buffer_size - r->read_filled;
- fir_resampler_run( r, &out, out + write_size );
- r->read_filled += out - r->buffer_out - write_pos;
- }
- if ( r->read_filled < 1 )
- return 0;
- return r->buffer_out[ r->read_pos ];
-}
-
-void fir_resampler_remove_sample(void *_r)
-{- fir_resampler * r = ( fir_resampler * ) _r;
- if ( r->read_filled > 0 )
- {- --r->read_filled;
- r->read_pos = ( r->read_pos + 1 ) % fir_buffer_size;
- }
-}
--- a/dumb/src/helpers/lpc.c
+++ /dev/null
@@ -1,320 +1,0 @@
-/********************************************************************
- * *
- * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
- * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
- * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
- * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
- * *
- * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2009 *
- * by the Xiph.Org Foundation http://www.xiph.org/ *
- * *
- ********************************************************************
-
- function: LPC low level routines
- last mod: $Id: lpc.c 16227 2009-07-08 06:58:46Z xiphmont $
-
- ********************************************************************/
-
-/* Some of these routines (autocorrelator, LPC coefficient estimator)
- are derived from code written by Jutta Degener and Carsten Bormann;
- thus we include their copyright below. The entirety of this file
- is freely redistributable on the condition that both of these
- copyright notices are preserved without modification. */
-
-/* Preserved Copyright: *********************************************/
-
-/* Copyright 1992, 1993, 1994 by Jutta Degener and Carsten Bormann,
-Technische Universita"t Berlin
-
-Any use of this software is permitted provided that this notice is not
-removed and that neither the authors nor the Technische Universita"t
-Berlin are deemed to have made any representations as to the
-suitability of this software for any purpose nor are held responsible
-for any defects of this software. THERE IS ABSOLUTELY NO WARRANTY FOR
-THIS SOFTWARE.
-
-As a matter of courtesy, the authors request to be informed about uses
-this software has found, about bugs in this software, and about any
-improvements that may be of general interest.
-
-Berlin, 28.11.1994
-Jutta Degener
-Carsten Bormann
-
-*********************************************************************/
-
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include "internal/stack_alloc.h"
-#include "internal/lpc.h"
-
-/* Autocorrelation LPC coeff generation algorithm invented by
- N. Levinson in 1947, modified by J. Durbin in 1959. */
-
-/* Input : n elements of time doamin data
- Output: m lpc coefficients, excitation energy */
-
-static float vorbis_lpc_from_data(float *data,float *lpci,int n,int m){- double *aut=alloca(sizeof(*aut)*(m+1));
- double *lpc=alloca(sizeof(*lpc)*(m));
- double error;
- double epsilon;
- int i,j;
-
- /* autocorrelation, p+1 lag coefficients */
- j=m+1;
- while(j--){- double d=0; /* double needed for accumulator depth */
- for(i=j;i<n;i++)d+=(double)data[i]*data[(i-j)];
- aut[j]=d;
- }
-
- /* Generate lpc coefficients from autocorr values */
-
- /* set our noise floor to about -100dB */
- error=aut[0] * (1. + 1e-10);
- epsilon=1e-9*aut[0]+1e-10;
-
- for(i=0;i<m;i++){- double r= -aut[i+1];
-
- if(error<epsilon){- memset(lpc+i,0,(m-i)*sizeof(*lpc));
- goto done;
- }
-
- /* Sum up this iteration's reflection coefficient; note that in
- Vorbis we don't save it. If anyone wants to recycle this code
- and needs reflection coefficients, save the results of 'r' from
- each iteration. */
-
- for(j=0;j<i;j++)r-=lpc[j]*aut[i-j];
- r/=error;
-
- /* Update LPC coefficients and total error */
-
- lpc[i]=r;
- for(j=0;j<i/2;j++){- double tmp=lpc[j];
-
- lpc[j]+=r*lpc[i-1-j];
- lpc[i-1-j]+=r*tmp;
- }
- if(i&1)lpc[j]+=lpc[j]*r;
-
- error*=1.-r*r;
-
- }
-
- done:
-
- /* slightly damp the filter */
- {- double g = .99;
- double damp = g;
- for(j=0;j<m;j++){- lpc[j]*=damp;
- damp*=g;
- }
- }
-
- for(j=0;j<m;j++)lpci[j]=(float)lpc[j];
-
- /* we need the error value to know how big an impulse to hit the
- filter with later */
-
- return error;
-}
-
-static void vorbis_lpc_predict(float *coeff,float *prime,int m,
- float *data,long n){-
- /* in: coeff[0...m-1] LPC coefficients
- prime[0...m-1] initial values (allocated size of n+m-1)
- out: data[0...n-1] data samples */
-
- long i,j,o,p;
- float y;
- float *work=alloca(sizeof(*work)*(m+n));
-
- if(!prime)
- for(i=0;i<m;i++)
- work[i]=0.f;
- else
- for(i=0;i<m;i++)
- work[i]=prime[i];
-
- for(i=0;i<n;i++){- y=0;
- o=i;
- p=m;
- for(j=0;j<m;j++)
- y-=work[o++]*coeff[--p];
-
- data[i]=work[o]=y;
- }
-}
-
-#include "dumb.h"
-#include "internal/dumb.h"
-#include "internal/it.h"
-
-enum { lpc_max = 256 }; /* Maximum number of input samples to train the function */-enum { lpc_order = 32 }; /* Order of the filter */-enum { lpc_extra = 64 }; /* How many samples of padding to predict or silence */-
-
-/* This extra sample padding is really only needed by the FIR resampler, but it helps the other resamplers as well. */
-
-void dumb_it_add_lpc(struct DUMB_IT_SIGDATA *sigdata){- float lpc[lpc_order * 2];
- float lpc_input[lpc_max * 2];
- float lpc_output[lpc_extra * 2];
-
- signed char * s8;
- signed short * s16;
-
- int n, o, offset, lpc_samples;
-
- for ( n = 0; n < sigdata->n_samples; n++ ) {- IT_SAMPLE * sample = sigdata->sample + n;
- if ( ( sample->flags & ( IT_SAMPLE_EXISTS | IT_SAMPLE_LOOP) ) == IT_SAMPLE_EXISTS ) {- /* If we have enough sample data to train the filter, use the filter to generate the padding */
- if ( sample->length >= lpc_order ) {- lpc_samples = sample->length;
- if (lpc_samples > lpc_max) lpc_samples = lpc_max;
- offset = sample->length - lpc_samples;
-
- if ( sample->flags & IT_SAMPLE_STEREO )
- {- if ( sample->flags & IT_SAMPLE_16BIT )
- {- s16 = ( signed short * ) sample->data;
- s16 += offset * 2;
- for ( o = 0; o < lpc_samples; o++ )
- {- lpc_input[ o ] = s16[ o * 2 + 0 ];
- lpc_input[ o + lpc_max ] = s16[ o * 2 + 1 ];
- }
- }
- else
- {- s8 = ( signed char * ) sample->data;
- s8 += offset * 2;
- for ( o = 0; o < lpc_samples; o++ )
- {- lpc_input[ o ] = s8[ o * 2 + 0 ];
- lpc_input[ o + lpc_max ] = s8[ o * 2 + 1 ];
- }
- }
-
- vorbis_lpc_from_data( lpc_input, lpc, lpc_samples, lpc_order );
- vorbis_lpc_from_data( lpc_input + lpc_max, lpc + lpc_order, lpc_samples, lpc_order );
-
- vorbis_lpc_predict( lpc, lpc_input + lpc_samples - lpc_order, lpc_order, lpc_output, lpc_extra );
- vorbis_lpc_predict( lpc + lpc_order, lpc_input + lpc_max + lpc_samples - lpc_order, lpc_order, lpc_output + lpc_extra, lpc_extra );
-
- if ( sample->flags & IT_SAMPLE_16BIT )
- {- s16 = ( signed short * ) realloc( sample->data, ( sample->length + lpc_extra ) * 2 * sizeof(short) );
- sample->data = s16;
-
- s16 += sample->length * 2;
- sample->length += lpc_extra;
-
- for ( o = 0; o < lpc_extra; o++ )
- {- s16[ o * 2 + 0 ] = lpc_output[ o ];
- s16[ o * 2 + 1 ] = lpc_output[ o + lpc_extra ];
- }
- }
- else
- {- s8 = ( signed char * ) realloc( sample->data, ( sample->length + lpc_extra ) * 2 );
- sample->data = s8;
-
- s8 += sample->length * 2;
- sample->length += lpc_extra;
-
- for ( o = 0; o < lpc_extra; o++ )
- {- s8[ o * 2 + 0 ] = lpc_output[ o ];
- s8[ o * 2 + 1 ] = lpc_output[ o + lpc_extra ];
- }
- }
- }
- else
- {- if ( sample->flags & IT_SAMPLE_16BIT )
- {- s16 = ( signed short * ) sample->data;
- s16 += offset;
- for ( o = 0; o < lpc_samples; o++ )
- {- lpc_input[ o ] = s16[ o ];
- }
- }
- else
- {- s8 = ( signed char * ) sample->data;
- s8 += offset;
- for ( o = 0; o < lpc_samples; o++ )
- {- lpc_input[ o ] = s8[ o ];
- }
- }
-
- vorbis_lpc_from_data( lpc_input, lpc, lpc_samples, lpc_order );
-
- vorbis_lpc_predict( lpc, lpc_input + lpc_samples - lpc_order, lpc_order, lpc_output, lpc_extra );
-
- if ( sample->flags & IT_SAMPLE_16BIT )
- {- s16 = ( signed short * ) realloc( sample->data, ( sample->length + lpc_extra ) * sizeof(short) );
- sample->data = s16;
-
- s16 += sample->length;
- sample->length += lpc_extra;
-
- for ( o = 0; o < lpc_extra; o++ )
- {- s16[ o ] = lpc_output[ o ];
- }
- }
- else
- {- s8 = ( signed char * ) realloc( sample->data, sample->length + lpc_extra );
- sample->data = s8;
-
- s8 += sample->length;
- sample->length += lpc_extra;
-
- for ( o = 0; o < lpc_extra; o++ )
- {- s8[ o ] = lpc_output[ o ];
- }
- }
- }
- }
- else
- /* Otherwise, pad with silence. */
- {- offset = sample->length;
- lpc_samples = lpc_extra;
-
- sample->length += lpc_samples;
-
- n = 1;
- if ( sample->flags & IT_SAMPLE_STEREO ) n *= 2;
- if ( sample->flags & IT_SAMPLE_16BIT ) n *= 2;
-
- offset *= n;
- lpc_samples *= n;
-
- sample->data = realloc( sample->data, offset + lpc_samples );
- memset( (char*)sample->data + offset, 0, lpc_samples );
- }
- }
- }
-}
--- a/dumb/src/helpers/memfile.c
+++ /dev/null
@@ -1,117 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * memfile.c - Module for reading data from / / \ \
- * memory using a DUMBFILE. | < / \_
- * | \/ /\ /
- * By entheh. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "dumb.h"
-
-
-
-typedef struct MEMFILE MEMFILE;
-
-struct MEMFILE
-{- const char *ptr, *ptr_begin;
- long left, size;
-};
-
-
-
-static int dumb_memfile_skip(void *f, long n)
-{- MEMFILE *m = f;
- if (n > m->left) return -1;
- m->ptr += n;
- m->left -= n;
- return 0;
-}
-
-
-
-static int dumb_memfile_getc(void *f)
-{- MEMFILE *m = f;
- if (m->left <= 0) return -1;
- m->left--;
- return *(const unsigned char *)m->ptr++;
-}
-
-
-
-static long dumb_memfile_getnc(char *ptr, long n, void *f)
-{- MEMFILE *m = f;
- if (n > m->left) n = m->left;
- memcpy(ptr, m->ptr, n);
- m->ptr += n;
- m->left -= n;
- return n;
-}
-
-
-
-static void dumb_memfile_close(void *f)
-{- free(f);
-}
-
-
-static int dumb_memfile_seek(void *f, long n)
-{- MEMFILE *m = f;
-
- m->ptr = m->ptr_begin + n;
- m->left = m->size - n;
-
- return 0;
-}
-
-
-static long dumb_memfile_get_size(void *f)
-{- MEMFILE *m = f;
- return m->size;
-}
-
-
-static const DUMBFILE_SYSTEM memfile_dfs = {- NULL,
- &dumb_memfile_skip,
- &dumb_memfile_getc,
- &dumb_memfile_getnc,
- &dumb_memfile_close,
- &dumb_memfile_seek,
- &dumb_memfile_get_size
-};
-
-
-
-DUMBFILE *dumbfile_open_memory(const char *data, long size)
-{- MEMFILE *m = malloc(sizeof(*m));
- if (!m) return NULL;
-
- m->ptr_begin = data;
- m->ptr = data;
- m->left = size;
- m->size = size;
-
- return dumbfile_open_ex(m, &memfile_dfs);
-}
--- a/dumb/src/helpers/resamp2.inc
+++ /dev/null
@@ -1,162 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * resamp2.inc - Resampling helper template. / / \ \
- * | < / \_
- * By Bob and entheh. | \/ /\ /
- * \_ / > /
- * In order to find a good trade-off between | \ / /
- * speed and accuracy in this code, some tests | ' /
- * were carried out regarding the behaviour of \__/
- * long long ints with gcc. The following code
- * was tested:
- *
- * int a, b, c;
- * c = ((long long)a * b) >> 16;
- *
- * DJGPP GCC Version 3.0.3 generated the following assembly language code for
- * the multiplication and scaling, leaving the 32-bit result in EAX.
- *
- * movl -8(%ebp), %eax ; read one int into EAX
- * imull -4(%ebp) ; multiply by the other; result goes in EDX:EAX
- * shrdl $16, %edx, %eax ; shift EAX right 16, shifting bits in from EDX
- *
- * Note that a 32*32->64 multiplication is performed, allowing for high
- * accuracy. On the Pentium 2 and above, shrdl takes two cycles (generally),
- * so it is a minor concern when four multiplications are being performed
- * (the cubic resampler). On the Pentium MMX and earlier, it takes four or
- * more cycles, so this method is unsuitable for use in the low-quality
- * resamplers.
- *
- * Since "long long" is a gcc-specific extension, we use LONG_LONG instead,
- * defined in dumb.h. We may investigate later what code MSVC generates, but
- * if it seems too slow then we suggest you use a good compiler.
- *
- * FIXME: these comments are somewhat out of date now.
- */
-
-
-
-#define SUFFIX3 _1
-
-/* For convenience, returns nonzero on stop. */
-static int process_pickup(DUMB_RESAMPLER *resampler)
-{- if (resampler->overshot < 0) {- resampler->overshot = 0;
- dumb_resample(resampler, NULL, 2, MONO_DEST_VOLUME_ZEROS, 1.0f); /* Doesn't matter which SUFFIX3. */
- COPYSRC(resampler->X, 0, resampler->X, 1);
- }
-
- for (;;) {- SRCTYPE *src = resampler->src;
-
- if (resampler->dir < 0) {- if (resampler->overshot >= 3 && resampler->pos+3 >= resampler->start) COPYSRC(resampler->X, 0, src, resampler->pos+3);
- if (resampler->overshot >= 2 && resampler->pos+2 >= resampler->start) COPYSRC(resampler->X, 1, src, resampler->pos+2);
- if (resampler->overshot >= 1 && resampler->pos+1 >= resampler->start) COPYSRC(resampler->X, 2, src, resampler->pos+1);
- resampler->overshot = resampler->start - resampler->pos - 1;
- } else {- if (resampler->overshot >= 3 && resampler->pos-3 < resampler->end) COPYSRC(resampler->X, 0, src, resampler->pos-3);
- if (resampler->overshot >= 2 && resampler->pos-2 < resampler->end) COPYSRC(resampler->X, 1, src, resampler->pos-2);
- if (resampler->overshot >= 1 && resampler->pos-1 < resampler->end) COPYSRC(resampler->X, 2, src, resampler->pos-1);
- resampler->overshot = resampler->pos - resampler->end;
- }
-
- if (resampler->overshot < 0) {- resampler->overshot = 0;
- return 0;
- }
-
- if (!resampler->pickup) {- resampler->dir = 0;
- return 1;
- }
- (*resampler->pickup)(resampler, resampler->pickup_data);
- if (resampler->dir == 0) return 1;
- ASSERT(resampler->dir == -1 || resampler->dir == 1);
- }
-}
-
-
-
-/* Create mono destination resampler. */
-/* SUFFIX3 was set above. */
-#define VOLUME_PARAMETERS MONO_DEST_VOLUME_PARAMETERS
-#define VOLUME_VARIABLES MONO_DEST_VOLUME_VARIABLES
-#define SET_VOLUME_VARIABLES SET_MONO_DEST_VOLUME_VARIABLES
-#define RETURN_VOLUME_VARIABLES RETURN_MONO_DEST_VOLUME_VARIABLES
-#define VOLUMES_ARE_ZERO MONO_DEST_VOLUMES_ARE_ZERO
-#define PEEK_FIR MONO_DEST_PEEK_FIR
-#define MIX_FIR MONO_DEST_MIX_FIR
-#define MIX_ZEROS(op) *dst++ op 0
-#include "resamp3.inc"
-
-/* Create stereo destination resampler. */
-#define SUFFIX3 _2
-#define VOLUME_PARAMETERS DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right
-#define VOLUME_VARIABLES lvol, lvolr, lvold, lvolt, lvolm, rvol, rvolr, rvold, rvolt, rvolm
-#define SET_VOLUME_VARIABLES { \- if ( volume_left ) { \- lvolr = (int)(volume_left->volume * 16777216.0); \
- lvold = (int)(volume_left->delta * 16777216.0); \
- lvolt = (int)(volume_left->target * 16777216.0); \
- lvolm = (int)(volume_left->mix * 16777216.0); \
- lvol = MULSCV( lvolr, lvolm ); \
- if ( lvolr == lvolt ) volume_left = NULL; \
- } else { \- lvol = 0; \
- lvold = 0; \
- lvolt = 0; \
- lvolm = 0; \
- } \
- if ( volume_right ) { \- rvolr = (int)(volume_right->volume * 16777216.0); \
- rvold = (int)(volume_right->delta * 16777216.0); \
- rvolt = (int)(volume_right->target * 16777216.0); \
- rvolm = (int)(volume_right->mix * 16777216.0); \
- rvol = MULSCV( rvolr, rvolm ); \
- if ( rvolr == rvolt ) volume_right = NULL; \
- } else { \- rvol = 0; \
- rvold = 0; \
- rvolt = 0; \
- rvolm = 0; \
- } \
-}
-#define RETURN_VOLUME_VARIABLES { \- if ( volume_left ) volume_left->volume = (float)lvolr / 16777216.0f; \
- if ( volume_right ) volume_right->volume = (float)rvolr / 16777216.0f; \
-}
-#define VOLUMES_ARE_ZERO (lvol == 0 && lvolt == 0 && rvol == 0 && rvolt == 0)
-#define PEEK_FIR STEREO_DEST_PEEK_FIR
-#define MIX_FIR STEREO_DEST_MIX_FIR
-#define MIX_ZEROS(op) { *dst++ op 0; *dst++ op 0; }-#include "resamp3.inc"
-
-
-
-#undef MONO_DEST_VOLUMES_ARE_ZERO
-#undef SET_MONO_DEST_VOLUME_VARIABLES
-#undef RETURN_MONO_DEST_VOLUME_VARIABLES
-#undef MONO_DEST_VOLUME_ZEROS
-#undef MONO_DEST_VOLUME_VARIABLES
-#undef MONO_DEST_VOLUME_PARAMETERS
-#undef MONO_DEST_PEEK_FIR
-#undef STEREO_DEST_PEEK_FIR
-#undef MONO_DEST_MIX_FIR
-#undef STEREO_DEST_MIX_FIR
-#undef ADVANCE_FIR
-#undef POKE_FIR
-#undef COPYSRC2
-#undef COPYSRC
-#undef DIVIDE_BY_SRC_CHANNELS
-#undef SRC_CHANNELS
-#undef SUFFIX2
--- a/dumb/src/helpers/resamp3.inc
+++ /dev/null
@@ -1,258 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * resamp3.inc - Resampling helper template. / / \ \
- * | < / \_
- * By Bob and entheh. | \/ /\ /
- * \_ / > /
- * In order to find a good trade-off between | \ / /
- * speed and accuracy in this code, some tests | ' /
- * were carried out regarding the behaviour of \__/
- * long long ints with gcc. The following code
- * was tested:
- *
- * int a, b, c;
- * c = ((long long)a * b) >> 16;
- *
- * DJGPP GCC Version 3.0.3 generated the following assembly language code for
- * the multiplication and scaling, leaving the 32-bit result in EAX.
- *
- * movl -8(%ebp), %eax ; read one int into EAX
- * imull -4(%ebp) ; multiply by the other; result goes in EDX:EAX
- * shrdl $16, %edx, %eax ; shift EAX right 16, shifting bits in from EDX
- *
- * Note that a 32*32->64 multiplication is performed, allowing for high
- * accuracy. On the Pentium 2 and above, shrdl takes two cycles (generally),
- * so it is a minor concern when four multiplications are being performed
- * (the cubic resampler). On the Pentium MMX and earlier, it takes four or
- * more cycles, so this method is unsuitable for use in the low-quality
- * resamplers.
- *
- * Since "long long" is a gcc-specific extension, we use LONG_LONG instead,
- * defined in dumb.h. We may investigate later what code MSVC generates, but
- * if it seems too slow then we suggest you use a good compiler.
- *
- * FIXME: these comments are somewhat out of date now.
- */
-
-
-
-long dumb_resample(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, VOLUME_PARAMETERS, float delta)
-{- int dt, inv_dt;
- int VOLUME_VARIABLES;
- long done;
- long todo;
- LONG_LONG todo64;
- int quality;
-
- if (!resampler || resampler->dir == 0) return 0;
- ASSERT(resampler->dir == -1 || resampler->dir == 1);
-
- done = 0;
- dt = (int)(delta * 65536.0 + 0.5);
- if (dt == 0 || dt == (int)-0x80000000) return 0;
- inv_dt = (int)(1.0 / delta * 65536.0 + 0.5);
- SET_VOLUME_VARIABLES;
-
- if (VOLUMES_ARE_ZERO) dst = NULL;
-
- _dumb_init_cubic();
-
- quality = resampler->quality;
-
- while (done < dst_size) {- if (process_pickup(resampler)) {- RETURN_VOLUME_VARIABLES;
- return done;
- }
-
- if ((resampler->dir ^ dt) < 0)
- dt = -dt;
-
- if (resampler->dir < 0)
- todo64 = ((((LONG_LONG)(resampler->pos - resampler->start) << 16) + resampler->subpos - dt) / -dt);
- else
- todo64 = ((((LONG_LONG)(resampler->end - resampler->pos) << 16) - resampler->subpos - 1 + dt) / dt);
-
- if (todo64 < 0)
- todo = 0;
- else if (todo64 > dst_size - done)
- todo = dst_size - done;
- else
- todo = (long) todo64;
-
- done += todo;
-
- {- SRCTYPE *src = resampler->src;
- long pos = resampler->pos;
- int subpos = resampler->subpos;
- long diff = pos;
- long overshot;
- if (resampler->dir < 0) {- if (!dst) {- /* Silence or simulation */
- LONG_LONG new_subpos = subpos + (LONG_LONG)dt * todo;
- pos += (long)(new_subpos >> 16);
- subpos = (long)new_subpos & 65535;
- } else {- /* FIR resampling, backwards */
- SRCTYPE *x;
- if ( resampler->fir_resampler_ratio != delta ) {- resampler_set_rate( resampler->fir_resampler[0], delta );
- resampler_set_rate( resampler->fir_resampler[1], delta );
- resampler->fir_resampler_ratio = delta;
- }
- x = &src[pos*SRC_CHANNELS];
- while ( todo ) {- while ( ( resampler_get_free_count( resampler->fir_resampler[0] ) ||
- (!resampler_get_sample_count( resampler->fir_resampler[0] )
-#if SRC_CHANNELS == 2
- && !resampler_get_sample_count( resampler->fir_resampler[1] )
-#endif
- ) ) && pos >= resampler->start )
- {- POKE_FIR(0);
- pos--;
- x -= SRC_CHANNELS;
- }
- if ( !resampler_get_sample_count( resampler->fir_resampler[0] ) ) break;
- MIX_FIR;
- ADVANCE_FIR;
- --todo;
- }
- done -= todo;
- }
- diff = diff - pos;
- overshot = resampler->start - pos - 1;
- if (diff >= 3) {- COPYSRC2(resampler->X, 0, overshot < 3, src, pos+3);
- COPYSRC2(resampler->X, 1, overshot < 2, src, pos+2);
- COPYSRC2(resampler->X, 2, overshot < 1, src, pos+1);
- } else if (diff >= 2) {- COPYSRC(resampler->X, 0, resampler->X, 2);
- COPYSRC2(resampler->X, 1, overshot < 2, src, pos+2);
- COPYSRC2(resampler->X, 2, overshot < 1, src, pos+1);
- } else if (diff >= 1) {- COPYSRC(resampler->X, 0, resampler->X, 1);
- COPYSRC(resampler->X, 1, resampler->X, 2);
- COPYSRC2(resampler->X, 2, overshot < 1, src, pos+1);
- }
- } else {- if (!dst) {- /* Silence or simulation */
- LONG_LONG new_subpos = subpos + (LONG_LONG)dt * todo;
- pos += (long)(new_subpos >> 16);
- subpos = (long)new_subpos & 65535;
- } else {- /* FIR resampling, forwards */
- SRCTYPE *x;
- if ( resampler->fir_resampler_ratio != delta ) {- resampler_set_rate( resampler->fir_resampler[0], delta );
- resampler_set_rate( resampler->fir_resampler[1], delta );
- resampler->fir_resampler_ratio = delta;
- }
- x = &src[pos*SRC_CHANNELS];
- while ( todo ) {- while ( ( resampler_get_free_count( resampler->fir_resampler[0] ) ||
- (!resampler_get_sample_count( resampler->fir_resampler[0] )
-#if SRC_CHANNELS == 2
- && !resampler_get_sample_count( resampler->fir_resampler[1] )
-#endif
- ) ) && pos < resampler->end )
- {- POKE_FIR(0);
- pos++;
- x += SRC_CHANNELS;
- }
- if ( !resampler_get_sample_count( resampler->fir_resampler[0] ) ) break;
- MIX_FIR;
- ADVANCE_FIR;
- --todo;
- }
- done -= todo;
- }
- diff = pos - diff;
- overshot = pos - resampler->end;
- if (diff >= 3) {- COPYSRC2(resampler->X, 0, overshot < 3, src, pos-3);
- COPYSRC2(resampler->X, 1, overshot < 2, src, pos-2);
- COPYSRC2(resampler->X, 2, overshot < 1, src, pos-1);
- } else if (diff >= 2) {- COPYSRC(resampler->X, 0, resampler->X, 2);
- COPYSRC2(resampler->X, 1, overshot < 2, src, pos-2);
- COPYSRC2(resampler->X, 2, overshot < 1, src, pos-1);
- } else if (diff >= 1) {- COPYSRC(resampler->X, 0, resampler->X, 1);
- COPYSRC(resampler->X, 1, resampler->X, 2);
- COPYSRC2(resampler->X, 2, overshot < 1, src, pos-1);
- }
- }
- resampler->pos = pos;
- resampler->subpos = subpos;
- }
- }
-
- RETURN_VOLUME_VARIABLES;
- return done;
-}
-
-
-
-void dumb_resample_get_current_sample(DUMB_RESAMPLER *resampler, VOLUME_PARAMETERS, sample_t *dst)
-{- int VOLUME_VARIABLES;
- SRCTYPE *src;
- long pos;
- int subpos;
- int quality;
- SRCTYPE *x;
-
- if (!resampler || resampler->dir == 0) { MIX_ZEROS(=); return; }- ASSERT(resampler->dir == -1 || resampler->dir == 1);
-
- if (process_pickup(resampler)) { MIX_ZEROS(=); return; }-
- SET_VOLUME_VARIABLES;
-
- if (VOLUMES_ARE_ZERO) { MIX_ZEROS(=); return; }-
- _dumb_init_cubic();
-
- quality = resampler->quality;
-
- src = resampler->src;
- pos = resampler->pos;
- subpos = resampler->subpos;
- x = resampler->X;
-
- if (resampler->dir < 0) {- HEAVYASSERT(pos >= resampler->start);
- /* FIR resampling, backwards */
- PEEK_FIR;
- } else {- HEAVYASSERT(pos < resampler->end);
- /* FIR resampling, forwards */
- PEEK_FIR;
- }
-}
-
-
-
-#undef MIX_ZEROS
-#undef MIX_FIR
-#undef PEEK_FIR
-#undef VOLUMES_ARE_ZERO
-#undef SET_VOLUME_VARIABLES
-#undef RETURN_VOLUME_VARIABLES
-#undef VOLUME_VARIABLES
-#undef VOLUME_PARAMETERS
-#undef SUFFIX3
--- a/dumb/src/helpers/resample.c
+++ /dev/null
@@ -1,330 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * resample.c - Resampling helpers. / / \ \
- * | < / \_
- * By Bob and entheh. | \/ /\ /
- * \_ / > /
- * In order to find a good trade-off between | \ / /
- * speed and accuracy in this code, some tests | ' /
- * were carried out regarding the behaviour of \__/
- * long long ints with gcc. The following code
- * was tested:
- *
- * int a, b, c;
- * c = ((long long)a * b) >> 16;
- *
- * DJGPP GCC Version 3.0.3 generated the following assembly language code for
- * the multiplication and scaling, leaving the 32-bit result in EAX.
- *
- * movl -8(%ebp), %eax ; read one int into EAX
- * imull -4(%ebp) ; multiply by the other; result goes in EDX:EAX
- * shrdl $16, %edx, %eax ; shift EAX right 16, shifting bits in from EDX
- *
- * Note that a 32*32->64 multiplication is performed, allowing for high
- * accuracy. On the Pentium 2 and above, shrdl takes two cycles (generally),
- * so it is a minor concern when four multiplications are being performed
- * (the cubic resampler). On the Pentium MMX and earlier, it takes four or
- * more cycles, so this method is unsuitable for use in the low-quality
- * resamplers.
- *
- * Since "long long" is a gcc-specific extension, we use LONG_LONG instead,
- * defined in dumb.h. We may investigate later what code MSVC generates, but
- * if it seems too slow then we suggest you use a good compiler.
- *
- * FIXME: these comments are somewhat out of date now.
- */
-
-#include <math.h>
-#include "dumb.h"
-
-#include "internal/resampler.h"
-
-
-
-/* Compile with -DHEAVYDEBUG if you want to make sure the pick-up function is
- * called when it should be. There will be a considerable performance hit,
- * since at least one condition has to be tested for every sample generated.
- */
-#ifdef HEAVYDEBUG
-#define HEAVYASSERT(cond) ASSERT(cond)
-#else
-#define HEAVYASSERT(cond)
-#endif
-
-
-
-/* Make MSVC shut the hell up about if ( upd ) UPDATE_VOLUME() conditions being constant */
-#ifdef _MSC_VER
-#pragma warning(disable:4127 4701)
-#endif
-
-
-
-/* A global variable for controlling resampling quality wherever a local
- * specification doesn't override it. The following values are valid:
- *
- * 0 - DUMB_RQ_ALIASING - fastest
- * 1 - DUMB_RQ_BLEP - nicer than aliasing, but slower
- * 2 - DUMB_RQ_LINEAR
- * 3 - DUMB_RQ_BLAM - band-limited linear interpolation, nice but slower
- * 4 - DUMB_RQ_CUBIC
- * 5 - DUMB_RQ_FIR - nicest
- *
- * Values outside the range 0-4 will behave the same as the nearest
- * value within the range.
- */
-int dumb_resampling_quality = DUMB_RQ_CUBIC;
-
-
-
-//#define MULSC(a, b) ((int)((LONG_LONG)(a) * (b) >> 16))
-//#define MULSC(a, b) ((a) * ((b) >> 2) >> 14)
-#define MULSCV(a, b) ((int)((LONG_LONG)(a) * (b) >> 32))
-#define MULSC(a, b) ((int)((LONG_LONG)((a) << 4) * ((b) << 12) >> 32))
-#define MULSC16(a, b) ((int)((LONG_LONG)((a) << 12) * ((b) << 12) >> 32))
-
-
-
-/* Executes the content 'iterator' times.
- * Clobbers the 'iterator' variable.
- * The loop is unrolled by four.
- */
-#if 0
-#define LOOP4(iterator, CONTENT) \
-{ \- if ((iterator) & 2) { \- CONTENT; \
- CONTENT; \
- } \
- if ((iterator) & 1) { \- CONTENT; \
- } \
- (iterator) >>= 2; \
- while (iterator) { \- CONTENT; \
- CONTENT; \
- CONTENT; \
- CONTENT; \
- (iterator)--; \
- } \
-}
-#else
-#define LOOP4(iterator, CONTENT) \
-{ \- while ( (iterator)-- ) \
- { \- CONTENT; \
- } \
-}
-#endif
-
-#define PASTERAW(a, b) a ## b /* This does not expand macros in b ... */
-#define PASTE(a, b) PASTERAW(a, b) /* ... but b is expanded during this substitution. */
-
-#define X PASTE(x.x, SRCBITS)
-
-
-
-void _dumb_init_cubic(void)
-{- static int done = 0;
- if (done) return;
-
- resampler_init();
-
- done = 1;
-}
-
-
-
-/* Create resamplers for 24-in-32-bit source samples. */
-
-/* #define SUFFIX
- * MSVC warns if we try to paste a null SUFFIX, so instead we define
- * special macros for the function names that don't bother doing the
- * corresponding paste. The more generic definitions are further down.
- */
-#define process_pickup PASTE(process_pickup, SUFFIX2)
-#define dumb_resample PASTE(PASTE(dumb_resample, SUFFIX2), SUFFIX3)
-#define dumb_resample_get_current_sample PASTE(PASTE(dumb_resample_get_current_sample, SUFFIX2), SUFFIX3)
-
-#define SRCTYPE sample_t
-#define SRCBITS 24
-#define FIR(x) (x >> 8)
-#include "resample.inc"
-
-/* Undefine the simplified macros. */
-#undef dumb_resample_get_current_sample
-#undef dumb_resample
-#undef process_pickup
-
-
-/* Now define the proper ones that use SUFFIX. */
-#define dumb_reset_resampler PASTE(dumb_reset_resampler, SUFFIX)
-#define dumb_start_resampler PASTE(dumb_start_resampler, SUFFIX)
-#define process_pickup PASTE(PASTE(process_pickup, SUFFIX), SUFFIX2)
-#define dumb_resample PASTE(PASTE(PASTE(dumb_resample, SUFFIX), SUFFIX2), SUFFIX3)
-#define dumb_resample_get_current_sample PASTE(PASTE(PASTE(dumb_resample_get_current_sample, SUFFIX), SUFFIX2), SUFFIX3)
-#define dumb_end_resampler PASTE(dumb_end_resampler, SUFFIX)
-
-/* Create resamplers for 16-bit source samples. */
-#define SUFFIX _16
-#define SRCTYPE short
-#define SRCBITS 16
-#define FIR(x) (x)
-#include "resample.inc"
-
-/* Create resamplers for 8-bit source samples. */
-#define SUFFIX _8
-#define SRCTYPE signed char
-#define SRCBITS 8
-#define FIR(x) (x << 8)
-#include "resample.inc"
-
-
-#undef dumb_reset_resampler
-#undef dumb_start_resampler
-#undef process_pickup
-#undef dumb_resample
-#undef dumb_resample_get_current_sample
-#undef dumb_end_resampler
-
-
-
-void dumb_reset_resampler_n(int n, DUMB_RESAMPLER *resampler, void *src, int src_channels, long pos, long start, long end, int quality)
-{- if (n == 8)
- dumb_reset_resampler_8(resampler, src, src_channels, pos, start, end, quality);
- else if (n == 16)
- dumb_reset_resampler_16(resampler, src, src_channels, pos, start, end, quality);
- else
- dumb_reset_resampler(resampler, src, src_channels, pos, start, end, quality);
-}
-
-
-
-DUMB_RESAMPLER *dumb_start_resampler_n(int n, void *src, int src_channels, long pos, long start, long end, int quality)
-{- if (n == 8)
- return dumb_start_resampler_8(src, src_channels, pos, start, end, quality);
- else if (n == 16)
- return dumb_start_resampler_16(src, src_channels, pos, start, end, quality);
- else
- return dumb_start_resampler(src, src_channels, pos, start, end, quality);
-}
-
-
-
-long dumb_resample_n_1_1(int n, DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume, float delta)
-{- if (n == 8)
- return dumb_resample_8_1_1(resampler, dst, dst_size, volume, delta);
- else if (n == 16)
- return dumb_resample_16_1_1(resampler, dst, dst_size, volume, delta);
- else
- return dumb_resample_1_1(resampler, dst, dst_size, volume, delta);
-}
-
-
-
-long dumb_resample_n_1_2(int n, DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta)
-{- if (n == 8)
- return dumb_resample_8_1_2(resampler, dst, dst_size, volume_left, volume_right, delta);
- else if (n == 16)
- return dumb_resample_16_1_2(resampler, dst, dst_size, volume_left, volume_right, delta);
- else
- return dumb_resample_1_2(resampler, dst, dst_size, volume_left, volume_right, delta);
-}
-
-
-
-long dumb_resample_n_2_1(int n, DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta)
-{- if (n == 8)
- return dumb_resample_8_2_1(resampler, dst, dst_size, volume_left, volume_right, delta);
- else if (n == 16)
- return dumb_resample_16_2_1(resampler, dst, dst_size, volume_left, volume_right, delta);
- else
- return dumb_resample_2_1(resampler, dst, dst_size, volume_left, volume_right, delta);
-}
-
-
-
-long dumb_resample_n_2_2(int n, DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta)
-{- if (n == 8)
- return dumb_resample_8_2_2(resampler, dst, dst_size, volume_left, volume_right, delta);
- else if (n == 16)
- return dumb_resample_16_2_2(resampler, dst, dst_size, volume_left, volume_right, delta);
- else
- return dumb_resample_2_2(resampler, dst, dst_size, volume_left, volume_right, delta);
-}
-
-
-
-void dumb_resample_get_current_sample_n_1_1(int n, DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume, sample_t *dst)
-{- if (n == 8)
- dumb_resample_get_current_sample_8_1_1(resampler, volume, dst);
- else if (n == 16)
- dumb_resample_get_current_sample_16_1_1(resampler, volume, dst);
- else
- dumb_resample_get_current_sample_1_1(resampler, volume, dst);
-}
-
-
-
-void dumb_resample_get_current_sample_n_1_2(int n, DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst)
-{- if (n == 8)
- dumb_resample_get_current_sample_8_1_2(resampler, volume_left, volume_right, dst);
- else if (n == 16)
- dumb_resample_get_current_sample_16_1_2(resampler, volume_left, volume_right, dst);
- else
- dumb_resample_get_current_sample_1_2(resampler, volume_left, volume_right, dst);
-}
-
-
-
-void dumb_resample_get_current_sample_n_2_1(int n, DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst)
-{- if (n == 8)
- dumb_resample_get_current_sample_8_2_1(resampler, volume_left, volume_right, dst);
- else if (n == 16)
- dumb_resample_get_current_sample_16_2_1(resampler, volume_left, volume_right, dst);
- else
- dumb_resample_get_current_sample_2_1(resampler, volume_left, volume_right, dst);
-}
-
-
-
-void dumb_resample_get_current_sample_n_2_2(int n, DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst)
-{- if (n == 8)
- dumb_resample_get_current_sample_8_2_2(resampler, volume_left, volume_right, dst);
- else if (n == 16)
- dumb_resample_get_current_sample_16_2_2(resampler, volume_left, volume_right, dst);
- else
- dumb_resample_get_current_sample_2_2(resampler, volume_left, volume_right, dst);
-}
-
-
-
-void dumb_end_resampler_n(int n, DUMB_RESAMPLER *resampler)
-{- if (n == 8)
- dumb_end_resampler_8(resampler);
- else if (n == 16)
- dumb_end_resampler_16(resampler);
- else
- dumb_end_resampler(resampler);
-}
--- a/dumb/src/helpers/resample.inc
+++ /dev/null
@@ -1,256 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * resample.inc - Resampling helper template. / / \ \
- * | < / \_
- * By Bob and entheh. | \/ /\ /
- * \_ / > /
- * In order to find a good trade-off between | \ / /
- * speed and accuracy in this code, some tests | ' /
- * were carried out regarding the behaviour of \__/
- * long long ints with gcc. The following code
- * was tested:
- *
- * int a, b, c;
- * c = ((long long)a * b) >> 16;
- *
- * DJGPP GCC Version 3.0.3 generated the following assembly language code for
- * the multiplication and scaling, leaving the 32-bit result in EAX.
- *
- * movl -8(%ebp), %eax ; read one int into EAX
- * imull -4(%ebp) ; multiply by the other; result goes in EDX:EAX
- * shrdl $16, %edx, %eax ; shift EAX right 16, shifting bits in from EDX
- *
- * Note that a 32*32->64 multiplication is performed, allowing for high
- * accuracy. On the Pentium 2 and above, shrdl takes two cycles (generally),
- * so it is a minor concern when four multiplications are being performed
- * (the cubic resampler). On the Pentium MMX and earlier, it takes four or
- * more cycles, so this method is unsuitable for use in the low-quality
- * resamplers.
- *
- * Since "long long" is a gcc-specific extension, we use LONG_LONG instead,
- * defined in dumb.h. We may investigate later what code MSVC generates, but
- * if it seems too slow then we suggest you use a good compiler.
- *
- * FIXME: these comments are somewhat out of date now.
- */
-
-
-
-void dumb_reset_resampler(DUMB_RESAMPLER *resampler, SRCTYPE *src, int src_channels, long pos, long start, long end, int quality)
-{- int i;
- resampler->src = src;
- resampler->pos = pos;
- resampler->subpos = 0;
- resampler->start = start;
- resampler->end = end;
- resampler->dir = 1;
- resampler->pickup = NULL;
- resampler->pickup_data = NULL;
- if (quality < 0)
- {- resampler->quality = 0;
- }
- else if (quality > DUMB_RQ_N_LEVELS - 1)
- {- resampler->quality = DUMB_RQ_N_LEVELS - 1;
- }
- else
- {- resampler->quality = quality;
- }
- for (i = 0; i < src_channels*3; i++) resampler->X[i] = 0;
- resampler->overshot = -1;
- resampler->fir_resampler_ratio = 0;
- resampler_clear(resampler->fir_resampler[0]);
- resampler_clear(resampler->fir_resampler[1]);
- resampler_set_quality(resampler->fir_resampler[0], resampler->quality);
- resampler_set_quality(resampler->fir_resampler[1], resampler->quality);
-}
-
-
-
-DUMB_RESAMPLER *dumb_start_resampler(SRCTYPE *src, int src_channels, long pos, long start, long end, int quality)
-{- DUMB_RESAMPLER *resampler = malloc(sizeof(*resampler));
- if (!resampler) return NULL;
- dumb_reset_resampler(resampler, src, src_channels, pos, start, end, quality);
- return resampler;
-}
-
-
-
-#define UPDATE_VOLUME( pvol, vol ) { \- if (pvol) { \- vol##r += vol##d; \
- if ((vol##d < 0 && vol##r <= vol##t) || \
- (vol##d > 0 && vol##r >= vol##t)) { \- pvol->volume = pvol->target; \
- if ( pvol->declick_stage == 0 || \
- pvol->declick_stage >= 3) \
- pvol->declick_stage++; \
- pvol = NULL; \
- vol = MULSCV( vol##t, vol##m ); \
- } else { \- vol = MULSCV( vol##r, vol##m ); \
- } \
- } \
-}
-
-
-
-/* Create mono source resampler. */
-#define SUFFIX2 _1
-#define SRC_CHANNELS 1
-#define DIVIDE_BY_SRC_CHANNELS(x) (x)
-#define COPYSRC(dstarray, dstindex, srcarray, srcindex) (dstarray)[dstindex] = (srcarray)[srcindex]
-#define COPYSRC2(dstarray, dstindex, condition, srcarray, srcindex) (dstarray)[dstindex] = condition ? (srcarray)[srcindex] : 0
-#define MONO_DEST_VOLUME_PARAMETERS DUMB_VOLUME_RAMP_INFO * volume
-#define MONO_DEST_VOLUME_VARIABLES vol, volr, vold, volt, volm
-#define MONO_DEST_VOLUME_ZEROS 0
-#define SET_MONO_DEST_VOLUME_VARIABLES { \- if ( volume ) { \- volr = (int)(volume->volume * 16777216.0); \
- vold = (int)(volume->delta * 16777216.0); \
- volt = (int)(volume->target * 16777216.0); \
- volm = (int)(volume->mix * 16777216.0); \
- vol = MULSCV( volr, volm ); \
- if ( volr == volt ) volume = NULL; \
- } else { \- vol = 0; \
- vold = 0; \
- volt = 0; \
- volm = 0; \
- } \
-}
-#define RETURN_MONO_DEST_VOLUME_VARIABLES if ( volume ) volume->volume = (float)volr / 16777216.0f
-#define MONO_DEST_VOLUMES_ARE_ZERO (vol == 0 && volt == 0)
-#define POKE_FIR(offset) { \- resampler_write_sample( resampler->fir_resampler[0], FIR(x[offset]) ); \
-}
-#define MONO_DEST_PEEK_FIR *dst = MULSC( resampler_get_sample( resampler->fir_resampler[0] ), vol )
-#define MONO_DEST_MIX_FIR { \- *dst++ += MULSC( resampler_get_sample( resampler->fir_resampler[0] ), vol ); \
- UPDATE_VOLUME( volume, vol ); \
-}
-#define ADVANCE_FIR resampler_remove_sample( resampler->fir_resampler[0], 1 )
-#define STEREO_DEST_PEEK_FIR { \- int sample = resampler_get_sample( resampler->fir_resampler[0] ); \
- *dst++ = MULSC( sample, lvol ); \
- *dst++ = MULSC( sample, rvol ); \
-}
-#define STEREO_DEST_MIX_FIR { \- int sample = resampler_get_sample( resampler->fir_resampler[0] ); \
- *dst++ += MULSC( sample, lvol ); \
- *dst++ += MULSC( sample, rvol ); \
- UPDATE_VOLUME( volume_left, lvol ); \
- UPDATE_VOLUME( volume_right, rvol ); \
-}
-#include "resamp2.inc"
-
-/* Create stereo source resampler. */
-#define SUFFIX2 _2
-#define SRC_CHANNELS 2
-#define DIVIDE_BY_SRC_CHANNELS(x) ((x) >> 1)
-#define COPYSRC(dstarray, dstindex, srcarray, srcindex) { \- (dstarray)[(dstindex)*2] = (srcarray)[(srcindex)*2]; \
- (dstarray)[(dstindex)*2+1] = (srcarray)[(srcindex)*2+1]; \
-}
-#define COPYSRC2(dstarray, dstindex, condition, srcarray, srcindex) { \- if (condition) { \- (dstarray)[(dstindex)*2] = (srcarray)[(srcindex)*2]; \
- (dstarray)[(dstindex)*2+1] = (srcarray)[(srcindex)*2+1]; \
- } else { \- (dstarray)[(dstindex)*2] = 0; \
- (dstarray)[(dstindex)*2+1] = 0; \
- } \
-}
-
-#define MONO_DEST_VOLUME_PARAMETERS DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right
-#define MONO_DEST_VOLUME_VARIABLES lvol, lvolr, lvold, lvolt, lvolm, rvol, rvolr, rvold, rvolt, rvolm
-#define MONO_DEST_VOLUME_ZEROS 0, 0
-#define SET_MONO_DEST_VOLUME_VARIABLES { \- if ( volume_left ) { \- lvolr = (int)(volume_left->volume * 16777216.0); \
- lvold = (int)(volume_left->delta * 16777216.0); \
- lvolt = (int)(volume_left->target * 16777216.0); \
- lvolm = (int)(volume_left->mix * 16777216.0); \
- lvol = MULSCV( lvolr, lvolm ); \
- if ( lvolr == lvolt ) volume_left = NULL; \
- } else { \- lvol = 0; \
- lvold = 0; \
- lvolt = 0; \
- lvolm = 0; \
- } \
- if ( volume_right ) { \- rvolr = (int)(volume_right->volume * 16777216.0); \
- rvold = (int)(volume_right->delta * 16777216.0); \
- rvolt = (int)(volume_right->target * 16777216.0); \
- rvolm = (int)(volume_right->mix * 16777216.0); \
- rvol = MULSCV( rvolr, rvolm ); \
- if ( rvolr == rvolt ) volume_right = NULL; \
- } else { \- rvol = 0; \
- rvold = 0; \
- rvolt = 0; \
- rvolm = 0; \
- } \
-}
-#define RETURN_MONO_DEST_VOLUME_VARIABLES { \- if ( volume_left ) volume_left->volume = (float)lvolr / 16777216.0f; \
- if ( volume_right ) volume_right->volume = (float)rvolr / 16777216.0f; \
-}
-#define MONO_DEST_VOLUMES_ARE_ZERO (lvol == 0 && lvolt == 0 && rvol == 0 && rvolt == 0)
-#define POKE_FIR(offset) { \- resampler_write_sample( resampler->fir_resampler[0], FIR(x[(offset)*2+0]) ); \
- resampler_write_sample( resampler->fir_resampler[1], FIR(x[(offset)*2+1]) ); \
-}
-#define MONO_DEST_PEEK_FIR { \- *dst = MULSC( resampler_get_sample( resampler->fir_resampler[0] ), lvol ) + \
- MULSC( resampler_get_sample( resampler->fir_resampler[1] ), rvol ); \
-}
-#define MONO_DEST_MIX_FIR { \- *dst++ += MULSC( resampler_get_sample( resampler->fir_resampler[0] ), lvol ) + \
- MULSC( resampler_get_sample( resampler->fir_resampler[1] ), rvol ); \
- UPDATE_VOLUME( volume_left, lvol ); \
- UPDATE_VOLUME( volume_right, rvol ); \
-}
-#define ADVANCE_FIR { \- resampler_remove_sample( resampler->fir_resampler[0], 1 ); \
- resampler_remove_sample( resampler->fir_resampler[1], 1 ); \
-}
-#define STEREO_DEST_PEEK_FIR { \- *dst++ = MULSC( resampler_get_sample( resampler->fir_resampler[0] ), lvol ); \
- *dst++ = MULSC( resampler_get_sample( resampler->fir_resampler[1] ), rvol ); \
-}
-#define STEREO_DEST_MIX_FIR { \- *dst++ += MULSC( resampler_get_sample( resampler->fir_resampler[0] ), lvol ); \
- *dst++ += MULSC( resampler_get_sample( resampler->fir_resampler[1] ), rvol ); \
- UPDATE_VOLUME( volume_left, lvol ); \
- UPDATE_VOLUME( volume_right, rvol ); \
-}
-#include "resamp2.inc"
-
-
-
-void dumb_end_resampler(DUMB_RESAMPLER *resampler)
-{- if (resampler)
- free(resampler);
-}
-
-
-
-#undef FIR
-#undef SRCBITS
-#undef SRCTYPE
-#undef SUFFIX
--- a/dumb/src/helpers/resampler.c
+++ /dev/null
@@ -1,1494 +1,0 @@
-#include <stdlib.h>
-#include <string.h>
-#define _USE_MATH_DEFINES
-#include <math.h>
-#if (defined(_M_IX86) || defined(__i386__) || defined(_M_X64) || defined(__amd64__))
-#include <xmmintrin.h>
-#define RESAMPLER_SSE
-#endif
-#ifdef __APPLE__
-#include <TargetConditionals.h>
-#if TARGET_CPU_ARM || TARGET_CPU_ARM64
-#define RESAMPLER_NEON
-#endif
-#elif (defined(__arm__) && defined(__ARM_NEON__))
-#define RESAMPLER_NEON
-#endif
-#ifdef RESAMPLER_NEON
-#include <arm_neon.h>
-#endif
-
-#ifdef _MSC_VER
-#define ALIGNED _declspec(align(16))
-#else
-#define ALIGNED __attribute__((aligned(16)))
-#endif
-
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif
-
-#include "internal/resampler.h"
-
-enum { RESAMPLER_SHIFT = 10 };-enum { RESAMPLER_SHIFT_EXTRA = 8 };-enum { RESAMPLER_RESOLUTION = 1 << RESAMPLER_SHIFT };-enum { RESAMPLER_RESOLUTION_EXTRA = 1 << (RESAMPLER_SHIFT + RESAMPLER_SHIFT_EXTRA) };-enum { SINC_WIDTH = 16 };-enum { SINC_SAMPLES = RESAMPLER_RESOLUTION * SINC_WIDTH };-enum { CUBIC_SAMPLES = RESAMPLER_RESOLUTION * 4 };-
-static const float RESAMPLER_BLEP_CUTOFF = 0.90f;
-static const float RESAMPLER_BLAM_CUTOFF = 0.93f;
-static const float RESAMPLER_SINC_CUTOFF = 0.999f;
-
-ALIGNED static float cubic_lut[CUBIC_SAMPLES];
-
-static float sinc_lut[SINC_SAMPLES + 1];
-static float window_lut[SINC_SAMPLES + 1];
-
-enum { resampler_buffer_size = SINC_WIDTH * 4 };-
-static int fEqual(const float b, const float a)
-{- return fabs(a - b) < 1.0e-6;
-}
-
-static float sinc(float x)
-{- return fEqual(x, 0.0) ? 1.0 : sin(x * M_PI) / (x * M_PI);
-}
-
-#ifdef RESAMPLER_SSE
-#ifdef _MSC_VER
-#include <intrin.h>
-#elif defined(__clang__) || defined(__GNUC__)
-static inline void
-__cpuid(int *data, int selector)
-{-#if defined(__PIC__) && defined(__i386__)
- asm("xchgl %%ebx, %%esi; cpuid; xchgl %%ebx, %%esi"- : "=a" (data[0]),
- "=S" (data[1]),
- "=c" (data[2]),
- "=d" (data[3])
- : "0" (selector));
-#elif defined(__PIC__) && defined(__amd64__)
- asm("xchg{q} {%%}rbx, %q1; cpuid; xchg{q} {%%}rbx, %q1"- : "=a" (data[0]),
- "=&r" (data[1]),
- "=c" (data[2]),
- "=d" (data[3])
- : "0" (selector));
-#else
- asm("cpuid"- : "=a" (data[0]),
- "=b" (data[1]),
- "=c" (data[2]),
- "=d" (data[3])
- : "0" (selector));
-#endif
-}
-#else
-#define __cpuid(a,b) memset((a), 0, sizeof(int) * 4)
-#endif
-
-static int query_cpu_feature_sse() {- int buffer[4];
- __cpuid(buffer,1);
- if ((buffer[3]&(1<<25)) == 0) return 0;
- return 1;
-}
-
-static int resampler_has_sse = 0;
-#endif
-
-void resampler_init(void)
-{- unsigned i;
- double dx = (float)(SINC_WIDTH) / SINC_SAMPLES, x = 0.0;
- for (i = 0; i < SINC_SAMPLES + 1; ++i, x += dx)
- {- float y = x / SINC_WIDTH;
-#if 0
- // Blackman
- float window = 0.42659 - 0.49656 * cos(M_PI + M_PI * y) + 0.076849 * cos(2.0 * M_PI * y);
-#elif 1
- // Nuttal 3 term
- float window = 0.40897 + 0.5 * cos(M_PI * y) + 0.09103 * cos(2.0 * M_PI * y);
-#elif 0
- // C.R.Helmrich's 2 term window
- float window = 0.79445 * cos(0.5 * M_PI * y) + 0.20555 * cos(1.5 * M_PI * y);
-#elif 0
- // Lanczos
- float window = sinc(y);
-#endif
- sinc_lut[i] = fabs(x) < SINC_WIDTH ? sinc(x) : 0.0;
- window_lut[i] = window;
- }
- dx = 1.0 / (float)(RESAMPLER_RESOLUTION);
- x = 0.0;
- for (i = 0; i < RESAMPLER_RESOLUTION; ++i, x += dx)
- {- cubic_lut[i*4] = (float)(-0.5 * x * x * x + x * x - 0.5 * x);
- cubic_lut[i*4+1] = (float)( 1.5 * x * x * x - 2.5 * x * x + 1.0);
- cubic_lut[i*4+2] = (float)(-1.5 * x * x * x + 2.0 * x * x + 0.5 * x);
- cubic_lut[i*4+3] = (float)( 0.5 * x * x * x - 0.5 * x * x);
- }
-#ifdef RESAMPLER_SSE
- resampler_has_sse = query_cpu_feature_sse();
-#endif
-}
-
-typedef struct resampler
-{- int write_pos, write_filled;
- int read_pos, read_filled;
- float phase;
- float phase_inc;
- float inv_phase;
- float inv_phase_inc;
- unsigned char quality;
- signed char delay_added;
- signed char delay_removed;
- float last_amp;
- float accumulator;
- float buffer_in[resampler_buffer_size * 2];
- float buffer_out[resampler_buffer_size + SINC_WIDTH * 2 - 1];
-} resampler;
-
-void * resampler_create(void)
-{- resampler * r = ( resampler * ) malloc( sizeof(resampler) );
- if ( !r ) return 0;
-
- r->write_pos = SINC_WIDTH - 1;
- r->write_filled = 0;
- r->read_pos = 0;
- r->read_filled = 0;
- r->phase = 0;
- r->phase_inc = 0;
- r->inv_phase = 0;
- r->inv_phase_inc = 0;
- r->quality = RESAMPLER_QUALITY_MAX;
- r->delay_added = -1;
- r->delay_removed = -1;
- r->last_amp = 0;
- r->accumulator = 0;
- memset( r->buffer_in, 0, sizeof(r->buffer_in) );
- memset( r->buffer_out, 0, sizeof(r->buffer_out) );
-
- return r;
-}
-
-void resampler_delete(void * _r)
-{- free( _r );
-}
-
-void * resampler_dup(const void * _r)
-{- void * r_out = malloc( sizeof(resampler) );
- if ( !r_out ) return 0;
-
- resampler_dup_inplace(r_out, _r);
-
- return r_out;
-}
-
-void resampler_dup_inplace(void *_d, const void *_s)
-{- const resampler * r_in = ( const resampler * ) _s;
- resampler * r_out = ( resampler * ) _d;
-
- r_out->write_pos = r_in->write_pos;
- r_out->write_filled = r_in->write_filled;
- r_out->read_pos = r_in->read_pos;
- r_out->read_filled = r_in->read_filled;
- r_out->phase = r_in->phase;
- r_out->phase_inc = r_in->phase_inc;
- r_out->inv_phase = r_in->inv_phase;
- r_out->inv_phase_inc = r_in->inv_phase_inc;
- r_out->quality = r_in->quality;
- r_out->delay_added = r_in->delay_added;
- r_out->delay_removed = r_in->delay_removed;
- r_out->last_amp = r_in->last_amp;
- r_out->accumulator = r_in->accumulator;
- memcpy( r_out->buffer_in, r_in->buffer_in, sizeof(r_in->buffer_in) );
- memcpy( r_out->buffer_out, r_in->buffer_out, sizeof(r_in->buffer_out) );
-}
-
-void resampler_set_quality(void *_r, int quality)
-{- resampler * r = ( resampler * ) _r;
- if (quality < RESAMPLER_QUALITY_MIN)
- quality = RESAMPLER_QUALITY_MIN;
- else if (quality > RESAMPLER_QUALITY_MAX)
- quality = RESAMPLER_QUALITY_MAX;
- if ( r->quality != quality )
- {- if ( quality == RESAMPLER_QUALITY_BLEP || r->quality == RESAMPLER_QUALITY_BLEP ||
- quality == RESAMPLER_QUALITY_BLAM || r->quality == RESAMPLER_QUALITY_BLAM )
- {- r->read_pos = 0;
- r->read_filled = 0;
- r->last_amp = 0;
- r->accumulator = 0;
- memset( r->buffer_out, 0, sizeof(r->buffer_out) );
- }
- r->delay_added = -1;
- r->delay_removed = -1;
- }
- r->quality = (unsigned char)quality;
-}
-
-int resampler_get_free_count(void *_r)
-{- resampler * r = ( resampler * ) _r;
- return resampler_buffer_size - r->write_filled;
-}
-
-static int resampler_min_filled(resampler *r)
-{- switch (r->quality)
- {- default:
- case RESAMPLER_QUALITY_ZOH:
- case RESAMPLER_QUALITY_BLEP:
- return 1;
-
- case RESAMPLER_QUALITY_LINEAR:
- case RESAMPLER_QUALITY_BLAM:
- return 2;
-
- case RESAMPLER_QUALITY_CUBIC:
- return 4;
-
- case RESAMPLER_QUALITY_SINC:
- return SINC_WIDTH * 2;
- }
-}
-
-static int resampler_input_delay(resampler *r)
-{- switch (r->quality)
- {- default:
- case RESAMPLER_QUALITY_ZOH:
- case RESAMPLER_QUALITY_BLEP:
- case RESAMPLER_QUALITY_LINEAR:
- case RESAMPLER_QUALITY_BLAM:
- return 0;
-
- case RESAMPLER_QUALITY_CUBIC:
- return 1;
-
- case RESAMPLER_QUALITY_SINC:
- return SINC_WIDTH - 1;
- }
-}
-
-static int resampler_output_delay(resampler *r)
-{- switch (r->quality)
- {- default:
- case RESAMPLER_QUALITY_ZOH:
- case RESAMPLER_QUALITY_LINEAR:
- case RESAMPLER_QUALITY_CUBIC:
- case RESAMPLER_QUALITY_SINC:
- return 0;
-
- case RESAMPLER_QUALITY_BLEP:
- case RESAMPLER_QUALITY_BLAM:
- return SINC_WIDTH - 1;
- }
-}
-
-int resampler_ready(void *_r)
-{- resampler * r = ( resampler * ) _r;
- return r->write_filled > resampler_min_filled(r);
-}
-
-void resampler_clear(void *_r)
-{- resampler * r = ( resampler * ) _r;
- r->write_pos = SINC_WIDTH - 1;
- r->write_filled = 0;
- r->read_pos = 0;
- r->read_filled = 0;
- r->phase = 0;
- r->delay_added = -1;
- r->delay_removed = -1;
- memset(r->buffer_in, 0, (SINC_WIDTH - 1) * sizeof(r->buffer_in[0]));
- memset(r->buffer_in + resampler_buffer_size, 0, (SINC_WIDTH - 1) * sizeof(r->buffer_in[0]));
- if (r->quality == RESAMPLER_QUALITY_BLEP || r->quality == RESAMPLER_QUALITY_BLAM)
- {- r->inv_phase = 0;
- r->last_amp = 0;
- r->accumulator = 0;
- memset(r->buffer_out, 0, sizeof(r->buffer_out));
- }
-}
-
-void resampler_set_rate(void *_r, double new_factor)
-{- resampler * r = ( resampler * ) _r;
- r->phase_inc = new_factor;
- new_factor = 1.0 / new_factor;
- r->inv_phase_inc = new_factor;
-}
-
-void resampler_write_sample(void *_r, short s)
-{- resampler * r = ( resampler * ) _r;
-
- if ( r->delay_added < 0 )
- {- r->delay_added = 0;
- r->write_filled = resampler_input_delay( r );
- }
-
- if ( r->write_filled < resampler_buffer_size )
- {- float s32 = s;
- s32 *= 256.0;
-
- r->buffer_in[ r->write_pos ] = s32;
- r->buffer_in[ r->write_pos + resampler_buffer_size ] = s32;
-
- ++r->write_filled;
-
- r->write_pos = ( r->write_pos + 1 ) % resampler_buffer_size;
- }
-}
-
-void resampler_write_sample_fixed(void *_r, int s, unsigned char depth)
-{- resampler * r = ( resampler * ) _r;
-
- if ( r->delay_added < 0 )
- {- r->delay_added = 0;
- r->write_filled = resampler_input_delay( r );
- }
-
- if ( r->write_filled < resampler_buffer_size )
- {- float s32 = s;
- s32 /= (double)(1 << (depth - 1));
-
- r->buffer_in[ r->write_pos ] = s32;
- r->buffer_in[ r->write_pos + resampler_buffer_size ] = s32;
-
- ++r->write_filled;
-
- r->write_pos = ( r->write_pos + 1 ) % resampler_buffer_size;
- }
-}
-
-static int resampler_run_zoh(resampler * r, float ** out_, float * out_end)
-{- int in_size = r->write_filled;
- float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
- int used = 0;
- in_size -= 1;
- if ( in_size > 0 )
- {- float* out = *out_;
- float const* in = in_;
- float const* const in_end = in + in_size;
- float phase = r->phase;
- float phase_inc = r->phase_inc;
-
- do
- {- float sample;
-
- if ( out >= out_end )
- break;
-
- sample = *in;
- *out++ = sample;
-
- phase += phase_inc;
-
- in += (int)phase;
-
- phase = fmod(phase, 1.0f);
- }
- while ( in < in_end );
-
- r->phase = phase;
- *out_ = out;
-
- used = (int)(in - in_);
-
- r->write_filled -= used;
- }
-
- return used;
-}
-
-#ifndef RESAMPLER_NEON
-static int resampler_run_blep(resampler * r, float ** out_, float * out_end)
-{- int in_size = r->write_filled;
- float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
- int used = 0;
- in_size -= 1;
- if ( in_size > 0 )
- {- float* out = *out_;
- float const* in = in_;
- float const* const in_end = in + in_size;
- float last_amp = r->last_amp;
- float inv_phase = r->inv_phase;
- float inv_phase_inc = r->inv_phase_inc;
-
- const int step = RESAMPLER_BLEP_CUTOFF * RESAMPLER_RESOLUTION;
- const int window_step = RESAMPLER_RESOLUTION;
-
- do
- {- float sample;
-
- if ( out + SINC_WIDTH * 2 > out_end )
- break;
-
- sample = *in++ - last_amp;
-
- if (sample)
- {- float kernel[SINC_WIDTH * 2], kernel_sum = 0.0f;
- int phase_reduced = (int)(inv_phase * RESAMPLER_RESOLUTION);
- int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
- int i = SINC_WIDTH;
-
- for (; i >= -SINC_WIDTH + 1; --i)
- {- int pos = i * step;
- int window_pos = i * window_step;
- kernel_sum += kernel[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
- }
- last_amp += sample;
- sample /= kernel_sum;
- for (i = 0; i < SINC_WIDTH * 2; ++i)
- out[i] += sample * kernel[i];
- }
-
- inv_phase += inv_phase_inc;
-
- out += (int)inv_phase;
-
- inv_phase = fmod(inv_phase, 1.0f);
- }
- while ( in < in_end );
-
- r->inv_phase = inv_phase;
- r->last_amp = last_amp;
- *out_ = out;
-
- used = (int)(in - in_);
-
- r->write_filled -= used;
- }
-
- return used;
-}
-#endif
-
-#ifdef RESAMPLER_SSE
-static int resampler_run_blep_sse(resampler * r, float ** out_, float * out_end)
-{- int in_size = r->write_filled;
- float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
- int used = 0;
- in_size -= 1;
- if ( in_size > 0 )
- {- float* out = *out_;
- float const* in = in_;
- float const* const in_end = in + in_size;
- float last_amp = r->last_amp;
- float inv_phase = r->inv_phase;
- float inv_phase_inc = r->inv_phase_inc;
-
- const int step = RESAMPLER_BLEP_CUTOFF * RESAMPLER_RESOLUTION;
- const int window_step = RESAMPLER_RESOLUTION;
-
- do
- {- float sample;
-
- if ( out + SINC_WIDTH * 2 > out_end )
- break;
-
- sample = *in++ - last_amp;
-
- if (sample)
- {- float kernel_sum = 0.0f;
- __m128 kernel[SINC_WIDTH / 2];
- __m128 temp1, temp2;
- __m128 samplex;
- float *kernelf = (float*)(&kernel);
- int phase_reduced = (int)(inv_phase * RESAMPLER_RESOLUTION);
- int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
- int i = SINC_WIDTH;
-
- for (; i >= -SINC_WIDTH + 1; --i)
- {- int pos = i * step;
- int window_pos = i * window_step;
- kernel_sum += kernelf[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
- }
- last_amp += sample;
- sample /= kernel_sum;
- samplex = _mm_set1_ps( sample );
- for (i = 0; i < SINC_WIDTH / 2; ++i)
- {- temp1 = _mm_load_ps( (const float *)( kernel + i ) );
- temp1 = _mm_mul_ps( temp1, samplex );
- temp2 = _mm_loadu_ps( (const float *) out + i * 4 );
- temp1 = _mm_add_ps( temp1, temp2 );
- _mm_storeu_ps( (float *) out + i * 4, temp1 );
- }
- }
-
- inv_phase += inv_phase_inc;
-
- out += (int)inv_phase;
-
- inv_phase = fmod(inv_phase, 1.0f);
- }
- while ( in < in_end );
-
- r->inv_phase = inv_phase;
- r->last_amp = last_amp;
- *out_ = out;
-
- used = (int)(in - in_);
-
- r->write_filled -= used;
- }
-
- return used;
-}
-#endif
-
-#ifdef RESAMPLER_NEON
-static int resampler_run_blep(resampler * r, float ** out_, float * out_end)
-{- int in_size = r->write_filled;
- float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
- int used = 0;
- in_size -= 1;
- if ( in_size > 0 )
- {- float* out = *out_;
- float const* in = in_;
- float const* const in_end = in + in_size;
- float last_amp = r->last_amp;
- float inv_phase = r->inv_phase;
- float inv_phase_inc = r->inv_phase_inc;
-
- const int step = RESAMPLER_BLEP_CUTOFF * RESAMPLER_RESOLUTION;
- const int window_step = RESAMPLER_RESOLUTION;
-
- do
- {- float sample;
-
- if ( out + SINC_WIDTH * 2 > out_end )
- break;
-
- sample = *in++ - last_amp;
-
- if (sample)
- {- float kernel_sum = 0.0f;
- float32x4_t kernel[SINC_WIDTH / 2];
- float32x4_t temp1, temp2;
- float32x4_t samplex;
- float *kernelf = (float*)(&kernel);
- int phase_reduced = (int)(inv_phase * RESAMPLER_RESOLUTION);
- int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
- int i = SINC_WIDTH;
-
- for (; i >= -SINC_WIDTH + 1; --i)
- {- int pos = i * step;
- int window_pos = i * window_step;
- kernel_sum += kernelf[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
- }
- last_amp += sample;
- sample /= kernel_sum;
- samplex = vdupq_n_f32(sample);
- for (i = 0; i < SINC_WIDTH / 2; ++i)
- {- temp1 = vld1q_f32( (const float32_t *)( kernel + i ) );
- temp2 = vld1q_f32( (const float32_t *) out + i * 4 );
- temp2 = vmlaq_f32( temp2, temp1, samplex );
- vst1q_f32( (float32_t *) out + i * 4, temp2 );
- }
- }
-
- inv_phase += inv_phase_inc;
-
- out += (int)inv_phase;
-
- inv_phase = fmod(inv_phase, 1.0f);
- }
- while ( in < in_end );
-
- r->inv_phase = inv_phase;
- r->last_amp = last_amp;
- *out_ = out;
-
- used = (int)(in - in_);
-
- r->write_filled -= used;
- }
-
- return used;
-}
-#endif
-
-static int resampler_run_linear(resampler * r, float ** out_, float * out_end)
-{- int in_size = r->write_filled;
- float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
- int used = 0;
- in_size -= 2;
- if ( in_size > 0 )
- {- float* out = *out_;
- float const* in = in_;
- float const* const in_end = in + in_size;
- float phase = r->phase;
- float phase_inc = r->phase_inc;
-
- do
- {- float sample;
-
- if ( out >= out_end )
- break;
-
- sample = in[0] + (in[1] - in[0]) * phase;
- *out++ = sample;
-
- phase += phase_inc;
-
- in += (int)phase;
-
- phase = fmod(phase, 1.0f);
- }
- while ( in < in_end );
-
- r->phase = phase;
- *out_ = out;
-
- used = (int)(in - in_);
-
- r->write_filled -= used;
- }
-
- return used;
-}
-
-#ifndef RESAMPLER_NEON
-static int resampler_run_blam(resampler * r, float ** out_, float * out_end)
-{- int in_size = r->write_filled;
- float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
- int used = 0;
- in_size -= 2;
- if ( in_size > 0 )
- {- float* out = *out_;
- float const* in = in_;
- float const* const in_end = in + in_size;
- float last_amp = r->last_amp;
- float phase = r->phase;
- float phase_inc = r->phase_inc;
- float inv_phase = r->inv_phase;
- float inv_phase_inc = r->inv_phase_inc;
-
- const int step = RESAMPLER_BLAM_CUTOFF * RESAMPLER_RESOLUTION;
- const int window_step = RESAMPLER_RESOLUTION;
-
- do
- {- float sample;
-
- if ( out + SINC_WIDTH * 2 > out_end )
- break;
-
- sample = in[0];
- if (phase_inc < 1.0f)
- sample += (in[1] - in[0]) * phase;
- sample -= last_amp;
-
- if (sample)
- {- float kernel[SINC_WIDTH * 2], kernel_sum = 0.0f;
- int phase_reduced = (int)(inv_phase * RESAMPLER_RESOLUTION);
- int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
- int i = SINC_WIDTH;
-
- for (; i >= -SINC_WIDTH + 1; --i)
- {- int pos = i * step;
- int window_pos = i * window_step;
- kernel_sum += kernel[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
- }
- last_amp += sample;
- sample /= kernel_sum;
- for (i = 0; i < SINC_WIDTH * 2; ++i)
- out[i] += sample * kernel[i];
- }
-
- if (inv_phase_inc < 1.0f)
- {- ++in;
- inv_phase += inv_phase_inc;
- out += (int)inv_phase;
- inv_phase = fmod(inv_phase, 1.0f);
- }
- else
- {- phase += phase_inc;
- ++out;
- in += (int)phase;
- phase = fmod(phase, 1.0f);
- }
- }
- while ( in < in_end );
-
- r->phase = phase;
- r->inv_phase = inv_phase;
- r->last_amp = last_amp;
- *out_ = out;
-
- used = (int)(in - in_);
-
- r->write_filled -= used;
- }
-
- return used;
-}
-#endif
-
-#ifdef RESAMPLER_SSE
-static int resampler_run_blam_sse(resampler * r, float ** out_, float * out_end)
-{- int in_size = r->write_filled;
- float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
- int used = 0;
- in_size -= 2;
- if ( in_size > 0 )
- {- float* out = *out_;
- float const* in = in_;
- float const* const in_end = in + in_size;
- float last_amp = r->last_amp;
- float phase = r->phase;
- float phase_inc = r->phase_inc;
- float inv_phase = r->inv_phase;
- float inv_phase_inc = r->inv_phase_inc;
-
- const int step = RESAMPLER_BLAM_CUTOFF * RESAMPLER_RESOLUTION;
- const int window_step = RESAMPLER_RESOLUTION;
-
- do
- {- float sample;
-
- if ( out + SINC_WIDTH * 2 > out_end )
- break;
-
- sample = in[0];
- if (phase_inc < 1.0f)
- {- sample += (in[1] - in[0]) * phase;
- }
- sample -= last_amp;
-
- if (sample)
- {- float kernel_sum = 0.0f;
- __m128 kernel[SINC_WIDTH / 2];
- __m128 temp1, temp2;
- __m128 samplex;
- float *kernelf = (float*)(&kernel);
- int phase_reduced = (int)(inv_phase * RESAMPLER_RESOLUTION);
- int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
- int i = SINC_WIDTH;
-
- for (; i >= -SINC_WIDTH + 1; --i)
- {- int pos = i * step;
- int window_pos = i * window_step;
- kernel_sum += kernelf[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
- }
- last_amp += sample;
- sample /= kernel_sum;
- samplex = _mm_set1_ps( sample );
- for (i = 0; i < SINC_WIDTH / 2; ++i)
- {- temp1 = _mm_load_ps( (const float *)( kernel + i ) );
- temp1 = _mm_mul_ps( temp1, samplex );
- temp2 = _mm_loadu_ps( (const float *) out + i * 4 );
- temp1 = _mm_add_ps( temp1, temp2 );
- _mm_storeu_ps( (float *) out + i * 4, temp1 );
- }
- }
-
- if (inv_phase_inc < 1.0f)
- {- ++in;
- inv_phase += inv_phase_inc;
- out += (int)inv_phase;
- inv_phase = fmod(inv_phase, 1.0f);
- }
- else
- {- phase += phase_inc;
- ++out;
-
- if (phase >= 1.0f)
- {- ++in;
- phase = fmod(phase, 1.0f);
- }
- }
- }
- while ( in < in_end );
-
- r->phase = phase;
- r->inv_phase = inv_phase;
- r->last_amp = last_amp;
- *out_ = out;
-
- used = (int)(in - in_);
-
- r->write_filled -= used;
- }
-
- return used;
-}
-#endif
-
-#ifdef RESAMPLER_NEON
-static int resampler_run_blam(resampler * r, float ** out_, float * out_end)
-{- int in_size = r->write_filled;
- float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
- int used = 0;
- in_size -= 2;
- if ( in_size > 0 )
- {- float* out = *out_;
- float const* in = in_;
- float const* const in_end = in + in_size;
- float last_amp = r->last_amp;
- float phase = r->phase;
- float phase_inc = r->phase_inc;
- float inv_phase = r->inv_phase;
- float inv_phase_inc = r->inv_phase_inc;
-
- const int step = RESAMPLER_BLAM_CUTOFF * RESAMPLER_RESOLUTION;
- const int window_step = RESAMPLER_RESOLUTION;
-
- do
- {- float sample;
-
- if ( out + SINC_WIDTH * 2 > out_end )
- break;
-
- sample = in[0];
- if (phase_inc < 1.0f)
- sample += (in[1] - in[0]) * phase;
- sample -= last_amp;
-
- if (sample)
- {- float kernel_sum = 0.0;
- float32x4_t kernel[SINC_WIDTH / 2];
- float32x4_t temp1, temp2;
- float32x4_t samplex;
- float *kernelf = (float*)(&kernel);
- int phase_reduced = (int)(inv_phase * RESAMPLER_RESOLUTION);
- int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
- int i = SINC_WIDTH;
-
- for (; i >= -SINC_WIDTH + 1; --i)
- {- int pos = i * step;
- int window_pos = i * window_step;
- kernel_sum += kernelf[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
- }
- last_amp += sample;
- sample /= kernel_sum;
- samplex = vdupq_n_f32(sample);
- for (i = 0; i < SINC_WIDTH / 2; ++i)
- {- temp1 = vld1q_f32( (const float32_t *)( kernel + i ) );
- temp2 = vld1q_f32( (const float32_t *) out + i * 4 );
- temp2 = vmlaq_f32( temp2, temp1, samplex );
- vst1q_f32( (float32_t *) out + i * 4, temp2 );
- }
- }
-
- if (inv_phase_inc < 1.0f)
- {- ++in;
- inv_phase += inv_phase_inc;
- out += (int)inv_phase;
- inv_phase = fmod(inv_phase, 1.0f);
- }
- else
- {- phase += phase_inc;
- ++out;
-
- if (phase >= 1.0f)
- {- ++in;
- phase = fmod(phase, 1.0f);
- }
- }
- }
- while ( in < in_end );
-
- r->phase = phase;
- r->inv_phase = inv_phase;
- r->last_amp = last_amp;
- *out_ = out;
-
- used = (int)(in - in_);
-
- r->write_filled -= used;
- }
-
- return used;
-}
-#endif
-
-#ifndef RESAMPLER_NEON
-static int resampler_run_cubic(resampler * r, float ** out_, float * out_end)
-{- int in_size = r->write_filled;
- float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
- int used = 0;
- in_size -= 4;
- if ( in_size > 0 )
- {- float* out = *out_;
- float const* in = in_;
- float const* const in_end = in + in_size;
- float phase = r->phase;
- float phase_inc = r->phase_inc;
-
- do
- {- float * kernel;
- int i;
- float sample;
-
- if ( out >= out_end )
- break;
-
- kernel = cubic_lut + (int)(phase * RESAMPLER_RESOLUTION) * 4;
-
- for (sample = 0, i = 0; i < 4; ++i)
- sample += in[i] * kernel[i];
- *out++ = sample;
-
- phase += phase_inc;
-
- in += (int)phase;
-
- phase = fmod(phase, 1.0f);
- }
- while ( in < in_end );
-
- r->phase = phase;
- *out_ = out;
-
- used = (int)(in - in_);
-
- r->write_filled -= used;
- }
-
- return used;
-}
-#endif
-
-#ifdef RESAMPLER_SSE
-static int resampler_run_cubic_sse(resampler * r, float ** out_, float * out_end)
-{- int in_size = r->write_filled;
- float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
- int used = 0;
- in_size -= 4;
- if ( in_size > 0 )
- {- float* out = *out_;
- float const* in = in_;
- float const* const in_end = in + in_size;
- float phase = r->phase;
- float phase_inc = r->phase_inc;
-
- do
- {- __m128 temp1, temp2;
- __m128 samplex = _mm_setzero_ps();
-
- if ( out >= out_end )
- break;
-
- temp1 = _mm_loadu_ps( (const float *)( in ) );
- temp2 = _mm_load_ps( (const float *)( cubic_lut + (int)(phase * RESAMPLER_RESOLUTION) * 4 ) );
- temp1 = _mm_mul_ps( temp1, temp2 );
- samplex = _mm_add_ps( samplex, temp1 );
- temp1 = _mm_movehl_ps( temp1, samplex );
- samplex = _mm_add_ps( samplex, temp1 );
- temp1 = samplex;
- temp1 = _mm_shuffle_ps( temp1, samplex, _MM_SHUFFLE(0, 0, 0, 1) );
- samplex = _mm_add_ps( samplex, temp1 );
- _mm_store_ss( out, samplex );
- ++out;
-
- phase += phase_inc;
-
- in += (int)phase;
-
- phase = fmod(phase, 1.0f);
- }
- while ( in < in_end );
-
- r->phase = phase;
- *out_ = out;
-
- used = (int)(in - in_);
-
- r->write_filled -= used;
- }
-
- return used;
-}
-#endif
-
-#ifdef RESAMPLER_NEON
-static int resampler_run_cubic(resampler * r, float ** out_, float * out_end)
-{- int in_size = r->write_filled;
- float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
- int used = 0;
- in_size -= 4;
- if ( in_size > 0 )
- {- float* out = *out_;
- float const* in = in_;
- float const* const in_end = in + in_size;
- float phase = r->phase;
- float phase_inc = r->phase_inc;
-
- do
- {- float32x4_t temp1, temp2;
- float32x2_t half;
-
- if ( out >= out_end )
- break;
-
- temp1 = vld1q_f32( (const float32_t *)( in ) );
- temp2 = vld1q_f32( (const float32_t *)( cubic_lut + (int)(phase * RESAMPLER_RESOLUTION) * 4 ) );
- temp1 = vmulq_f32( temp1, temp2 );
- half = vadd_f32(vget_high_f32(temp1), vget_low_f32(temp1));
- *out++ = vget_lane_f32(vpadd_f32(half, half), 0);
-
- phase += phase_inc;
-
- in += (int)phase;
-
- phase = fmod(phase, 1.0f);
- }
- while ( in < in_end );
-
- r->phase = phase;
- *out_ = out;
-
- used = (int)(in - in_);
-
- r->write_filled -= used;
- }
-
- return used;
-}
-#endif
-
-#ifndef RESAMPLER_NEON
-static int resampler_run_sinc(resampler * r, float ** out_, float * out_end)
-{- int in_size = r->write_filled;
- float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
- int used = 0;
- in_size -= SINC_WIDTH * 2;
- if ( in_size > 0 )
- {- float* out = *out_;
- float const* in = in_;
- float const* const in_end = in + in_size;
- float phase = r->phase;
- float phase_inc = r->phase_inc;
-
- int step = phase_inc > 1.0f ? (int)(RESAMPLER_RESOLUTION / phase_inc * RESAMPLER_SINC_CUTOFF) : (int)(RESAMPLER_RESOLUTION * RESAMPLER_SINC_CUTOFF);
- int window_step = RESAMPLER_RESOLUTION;
-
- do
- {- float kernel[SINC_WIDTH * 2], kernel_sum = 0.0;
- int i = SINC_WIDTH;
- int phase_reduced = (int)(phase * RESAMPLER_RESOLUTION);
- int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
- float sample;
-
- if ( out >= out_end )
- break;
-
- for (; i >= -SINC_WIDTH + 1; --i)
- {- int pos = i * step;
- int window_pos = i * window_step;
- kernel_sum += kernel[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
- }
- for (sample = 0, i = 0; i < SINC_WIDTH * 2; ++i)
- sample += in[i] * kernel[i];
- *out++ = (float)(sample / kernel_sum);
-
- phase += phase_inc;
-
- in += (int)phase;
-
- phase = fmod(phase, 1.0f);
- }
- while ( in < in_end );
-
- r->phase = phase;
- *out_ = out;
-
- used = (int)(in - in_);
-
- r->write_filled -= used;
- }
-
- return used;
-}
-#endif
-
-#ifdef RESAMPLER_SSE
-static int resampler_run_sinc_sse(resampler * r, float ** out_, float * out_end)
-{- int in_size = r->write_filled;
- float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
- int used = 0;
- in_size -= SINC_WIDTH * 2;
- if ( in_size > 0 )
- {- float* out = *out_;
- float const* in = in_;
- float const* const in_end = in + in_size;
- float phase = r->phase;
- float phase_inc = r->phase_inc;
-
- int step = phase_inc > 1.0f ? (int)(RESAMPLER_RESOLUTION / phase_inc * RESAMPLER_SINC_CUTOFF) : (int)(RESAMPLER_RESOLUTION * RESAMPLER_SINC_CUTOFF);
- int window_step = RESAMPLER_RESOLUTION;
-
- do
- {- // accumulate in extended precision
- float kernel_sum = 0.0;
- __m128 kernel[SINC_WIDTH / 2];
- __m128 temp1, temp2;
- __m128 samplex = _mm_setzero_ps();
- float *kernelf = (float*)(&kernel);
- int i = SINC_WIDTH;
- int phase_reduced = (int)(phase * RESAMPLER_RESOLUTION);
- int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
-
- if ( out >= out_end )
- break;
-
- for (; i >= -SINC_WIDTH + 1; --i)
- {- int pos = i * step;
- int window_pos = i * window_step;
- kernel_sum += kernelf[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
- }
- for (i = 0; i < SINC_WIDTH / 2; ++i)
- {- temp1 = _mm_loadu_ps( (const float *)( in + i * 4 ) );
- temp2 = _mm_load_ps( (const float *)( kernel + i ) );
- temp1 = _mm_mul_ps( temp1, temp2 );
- samplex = _mm_add_ps( samplex, temp1 );
- }
- kernel_sum = 1.0 / kernel_sum;
- temp1 = _mm_movehl_ps( temp1, samplex );
- samplex = _mm_add_ps( samplex, temp1 );
- temp1 = samplex;
- temp1 = _mm_shuffle_ps( temp1, samplex, _MM_SHUFFLE(0, 0, 0, 1) );
- samplex = _mm_add_ps( samplex, temp1 );
- temp1 = _mm_set_ss( kernel_sum );
- samplex = _mm_mul_ps( samplex, temp1 );
- _mm_store_ss( out, samplex );
- ++out;
-
- phase += phase_inc;
-
- in += (int)phase;
-
- phase = fmod(phase, 1.0f);
- }
- while ( in < in_end );
-
- r->phase = phase;
- *out_ = out;
-
- used = (int)(in - in_);
-
- r->write_filled -= used;
- }
-
- return used;
-}
-#endif
-
-#ifdef RESAMPLER_NEON
-static int resampler_run_sinc(resampler * r, float ** out_, float * out_end)
-{- int in_size = r->write_filled;
- float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
- int used = 0;
- in_size -= SINC_WIDTH * 2;
- if ( in_size > 0 )
- {- float* out = *out_;
- float const* in = in_;
- float const* const in_end = in + in_size;
- float phase = r->phase;
- float phase_inc = r->phase_inc;
-
- int step = phase_inc > 1.0f ? (int)(RESAMPLER_RESOLUTION / phase_inc * RESAMPLER_SINC_CUTOFF) : (int)(RESAMPLER_RESOLUTION * RESAMPLER_SINC_CUTOFF);
- int window_step = RESAMPLER_RESOLUTION;
-
- do
- {- // accumulate in extended precision
- float kernel_sum = 0.0;
- float32x4_t kernel[SINC_WIDTH / 2];
- float32x4_t temp1, temp2;
- float32x4_t samplex = {0};- float32x2_t half;
- float *kernelf = (float*)(&kernel);
- int i = SINC_WIDTH;
- int phase_reduced = (int)(phase * RESAMPLER_RESOLUTION);
- int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
-
- if ( out >= out_end )
- break;
-
- for (; i >= -SINC_WIDTH + 1; --i)
- {- int pos = i * step;
- int window_pos = i * window_step;
- kernel_sum += kernelf[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
- }
- for (i = 0; i < SINC_WIDTH / 2; ++i)
- {- temp1 = vld1q_f32( (const float32_t *)( in + i * 4 ) );
- temp2 = vld1q_f32( (const float32_t *)( kernel + i ) );
- samplex = vmlaq_f32( samplex, temp1, temp2 );
- }
- kernel_sum = 1.0 / kernel_sum;
- samplex = vmulq_f32(samplex, vmovq_n_f32(kernel_sum));
- half = vadd_f32(vget_high_f32(samplex), vget_low_f32(samplex));
- *out++ = vget_lane_f32(vpadd_f32(half, half), 0);
-
- phase += phase_inc;
-
- in += (int)phase;
-
- phase = fmod(phase, 1.0f);
- }
- while ( in < in_end );
-
- r->phase = phase;
- *out_ = out;
-
- used = (int)(in - in_);
-
- r->write_filled -= used;
- }
-
- return used;
-}
-#endif
-
-static void resampler_fill(resampler * r)
-{- int min_filled = resampler_min_filled(r);
- int quality = r->quality;
- while ( r->write_filled > min_filled &&
- r->read_filled < resampler_buffer_size )
- {- int write_pos = ( r->read_pos + r->read_filled ) % resampler_buffer_size;
- int write_size = resampler_buffer_size - write_pos;
- float * out = r->buffer_out + write_pos;
- if ( write_size > ( resampler_buffer_size - r->read_filled ) )
- write_size = resampler_buffer_size - r->read_filled;
- switch (quality)
- {- case RESAMPLER_QUALITY_ZOH:
- resampler_run_zoh( r, &out, out + write_size );
- break;
-
- case RESAMPLER_QUALITY_BLEP:
- {- int used;
- int write_extra = 0;
- if ( write_pos >= r->read_pos )
- write_extra = r->read_pos;
- if ( write_extra > SINC_WIDTH * 2 - 1 )
- write_extra = SINC_WIDTH * 2 - 1;
- memcpy( r->buffer_out + resampler_buffer_size, r->buffer_out, write_extra * sizeof(r->buffer_out[0]) );
-#ifdef RESAMPLER_SSE
- if ( resampler_has_sse )
- used = resampler_run_blep_sse( r, &out, out + write_size + write_extra );
- else
-#endif
- used = resampler_run_blep( r, &out, out + write_size + write_extra );
- memcpy( r->buffer_out, r->buffer_out + resampler_buffer_size, write_extra * sizeof(r->buffer_out[0]) );
- if (!used)
- return;
- break;
- }
-
- case RESAMPLER_QUALITY_LINEAR:
- resampler_run_linear( r, &out, out + write_size );
- break;
-
- case RESAMPLER_QUALITY_BLAM:
- {- float * out_ = out;
- int write_extra = 0;
- if ( write_pos >= r->read_pos )
- write_extra = r->read_pos;
- if ( write_extra > SINC_WIDTH * 2 - 1 )
- write_extra = SINC_WIDTH * 2 - 1;
- memcpy( r->buffer_out + resampler_buffer_size, r->buffer_out, write_extra * sizeof(r->buffer_out[0]) );
-#ifdef RESAMPLER_SSE
- if ( resampler_has_sse )
- resampler_run_blam_sse( r, &out, out + write_size + write_extra );
- else
-#endif
- resampler_run_blam( r, &out, out + write_size + write_extra );
- memcpy( r->buffer_out, r->buffer_out + resampler_buffer_size, write_extra * sizeof(r->buffer_out[0]) );
- if ( out == out_ )
- return;
- break;
- }
-
- case RESAMPLER_QUALITY_CUBIC:
-#ifdef RESAMPLER_SSE
- if ( resampler_has_sse )
- resampler_run_cubic_sse( r, &out, out + write_size );
- else
-#endif
- resampler_run_cubic( r, &out, out + write_size );
- break;
-
- case RESAMPLER_QUALITY_SINC:
-#ifdef RESAMPLER_SSE
- if ( resampler_has_sse )
- resampler_run_sinc_sse( r, &out, out + write_size );
- else
-#endif
- resampler_run_sinc( r, &out, out + write_size );
- break;
- }
- r->read_filled += out - r->buffer_out - write_pos;
- }
-}
-
-static void resampler_fill_and_remove_delay(resampler * r)
-{- resampler_fill( r );
- if ( r->delay_removed < 0 )
- {- int delay = resampler_output_delay( r );
- r->delay_removed = 0;
- while ( delay-- )
- resampler_remove_sample( r, 1 );
- }
-}
-
-int resampler_get_sample_count(void *_r)
-{- resampler * r = ( resampler * ) _r;
- if ( r->read_filled < 1 && ((r->quality != RESAMPLER_QUALITY_BLEP && r->quality != RESAMPLER_QUALITY_BLAM) || r->inv_phase_inc))
- resampler_fill_and_remove_delay( r );
- return r->read_filled;
-}
-
-int resampler_get_sample(void *_r)
-{- resampler * r = ( resampler * ) _r;
- if ( r->read_filled < 1 && r->phase_inc)
- resampler_fill_and_remove_delay( r );
- if ( r->read_filled < 1 )
- return 0;
- if ( r->quality == RESAMPLER_QUALITY_BLEP || r->quality == RESAMPLER_QUALITY_BLAM )
- return (int)(r->buffer_out[ r->read_pos ] + r->accumulator);
- else
- return (int)r->buffer_out[ r->read_pos ];
-}
-
-float resampler_get_sample_float(void *_r)
-{- resampler * r = ( resampler * ) _r;
- if ( r->read_filled < 1 && r->phase_inc)
- resampler_fill_and_remove_delay( r );
- if ( r->read_filled < 1 )
- return 0;
- if ( r->quality == RESAMPLER_QUALITY_BLEP || r->quality == RESAMPLER_QUALITY_BLAM )
- return r->buffer_out[ r->read_pos ] + r->accumulator;
- else
- return r->buffer_out[ r->read_pos ];
-}
-
-void resampler_remove_sample(void *_r, int decay)
-{- resampler * r = ( resampler * ) _r;
- if ( r->read_filled > 0 )
- {- if ( r->quality == RESAMPLER_QUALITY_BLEP || r->quality == RESAMPLER_QUALITY_BLAM )
- {- r->accumulator += r->buffer_out[ r->read_pos ];
- r->buffer_out[ r->read_pos ] = 0;
- if (decay)
- {- r->accumulator -= r->accumulator * (1.0f / 8192.0f);
- if (fabs(r->accumulator) < 1e-20f)
- r->accumulator = 0;
- }
- }
- --r->read_filled;
- r->read_pos = ( r->read_pos + 1 ) % resampler_buffer_size;
- }
-}
--- a/dumb/src/helpers/riff.c
+++ /dev/null
@@ -1,85 +1,0 @@
-#include "dumb.h"
-#include "internal/riff.h"
-
-#include <stdlib.h>
-
-struct riff * riff_parse( DUMBFILE * f, long offset, long size, unsigned proper )
-{- unsigned stream_size;
- struct riff * stream;
-
- if ( size < 8 ) return 0;
-
- if ( dumbfile_seek(f, offset, DFS_SEEK_SET) ) return 0;
- if ( dumbfile_mgetl(f) != DUMB_ID('R','I','F','F') ) return 0;-
- stream_size = dumbfile_igetl(f);
- if ( stream_size + 8 > size ) return 0;
- if ( stream_size < 4 ) return 0;
-
- stream = (struct riff *) malloc( sizeof( struct riff ) );
- if ( ! stream ) return 0;
-
- stream->type = dumbfile_mgetl(f);
- stream->chunk_count = 0;
- stream->chunks = 0;
-
- stream_size -= 4;
-
- while ( stream_size && !dumbfile_error(f) )
- {- struct riff_chunk * chunk;
- if ( stream_size < 8 ) break;
- stream->chunks = ( struct riff_chunk * ) realloc( stream->chunks, ( stream->chunk_count + 1 ) * sizeof( struct riff_chunk ) );
- if ( ! stream->chunks ) break;
- chunk = stream->chunks + stream->chunk_count;
- chunk->type = dumbfile_mgetl(f);
- chunk->size = dumbfile_igetl(f);
- chunk->offset = dumbfile_pos(f);
- stream_size -= 8;
- if ( stream_size < chunk->size ) break;
- if ( chunk->type == DUMB_ID('R','I','F','F') )- {- chunk->nested = riff_parse( f, chunk->offset - 8, chunk->size + 8, proper );
- if ( ! chunk->nested ) break;
- }
- else
- {- chunk->nested = 0;
- }
- dumbfile_seek(f, chunk->offset + chunk->size, DFS_SEEK_SET);
- stream_size -= chunk->size;
- if ( proper && ( chunk->size & 1 ) )
- {- dumbfile_skip(f, 1);
- -- stream_size;
- }
- ++stream->chunk_count;
- }
-
- if ( stream_size )
- {- riff_free( stream );
- stream = 0;
- }
-
- return stream;
-}
-
-void riff_free( struct riff * stream )
-{- if ( stream )
- {- if ( stream->chunks )
- {- unsigned i;
- for ( i = 0; i < stream->chunk_count; ++i )
- {- struct riff_chunk * chunk = stream->chunks + i;
- if ( chunk->nested ) riff_free( chunk->nested );
- }
- free( stream->chunks );
- }
- free( stream );
- }
-}
--- a/dumb/src/helpers/sampbuf.c
+++ /dev/null
@@ -1,64 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * sampbuf.c - Helper for allocating sample / / \ \
- * buffers. | < / \_
- * | \/ /\ /
- * By entheh. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include "dumb.h"
-
-
-
-/* DEPRECATED */
-sample_t **create_sample_buffer(int n_channels, long length)
-{- int i;
- sample_t **samples = malloc(n_channels * sizeof(*samples));
- if (!samples) return NULL;
- samples[0] = malloc(n_channels * length * sizeof(*samples[0]));
- if (!samples[0]) {- free(samples);
- return NULL;
- }
- for (i = 1; i < n_channels; i++) samples[i] = samples[i-1] + length;
- return samples;
-}
-
-
-
-sample_t **allocate_sample_buffer(int n_channels, long length)
-{- int i;
- sample_t **samples = malloc(((n_channels + 1) >> 1) * sizeof(*samples));
- if (!samples) return NULL;
- samples[0] = malloc(n_channels * length * sizeof(*samples[0]));
- if (!samples[0]) {- free(samples);
- return NULL;
- }
- for (i = 1; i < (n_channels + 1) >> 1; i++) samples[i] = samples[i-1] + length*2;
- return samples;
-}
-
-
-
-void destroy_sample_buffer(sample_t **samples)
-{- if (samples) {- free(samples[0]);
- free(samples);
- }
-}
--- a/dumb/src/helpers/silence.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * silence.c - Silencing helper. / / \ \
- * | < / \_
- * By entheh. | \/ /\ /
- * \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <string.h>
-#include "dumb.h"
-
-
-
-void dumb_silence(sample_t *samples, long length)
-{- memset(samples, 0, length * sizeof(*samples));
-}
-
--- a/dumb/src/helpers/stdfile.c
+++ /dev/null
@@ -1,146 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * stdfile.c - stdio file input module. / / \ \
- * | < / \_
- * By entheh. | \/ /\ /
- * \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdio.h>
-
-#include "dumb.h"
-
-
-
-typedef struct dumb_stdfile
-{- FILE * file;
- long size;
-} dumb_stdfile;
-
-
-
-static void *dumb_stdfile_open(const char *filename)
-{- dumb_stdfile * file = ( dumb_stdfile * ) malloc( sizeof(dumb_stdfile) );
- if ( !file ) return 0;
- file->file = fopen(filename, "rb");
- fseek(file->file, 0, SEEK_END);
- file->size = ftell(file->file);
- fseek(file->file, 0, SEEK_SET);
- return file;
-}
-
-
-
-static int dumb_stdfile_skip(void *f, long n)
-{- dumb_stdfile * file = ( dumb_stdfile * ) f;
- return fseek(file->file, n, SEEK_CUR);
-}
-
-
-
-static int dumb_stdfile_getc(void *f)
-{- dumb_stdfile * file = ( dumb_stdfile * ) f;
- return fgetc(file->file);
-}
-
-
-
-static long dumb_stdfile_getnc(char *ptr, long n, void *f)
-{- dumb_stdfile * file = ( dumb_stdfile * ) f;
- return fread(ptr, 1, n, file->file);
-}
-
-
-
-static void dumb_stdfile_close(void *f)
-{- dumb_stdfile * file = ( dumb_stdfile * ) f;
- fclose(file->file);
- free(f);
-}
-
-
-
-static void dumb_stdfile_noclose(void *f)
-{- free(f);
-}
-
-
-
-static int dumb_stdfile_seek(void *f, long n)
-{- dumb_stdfile * file = ( dumb_stdfile * ) f;
- return fseek(file->file, n, SEEK_SET);
-}
-
-
-
-static long dumb_stdfile_get_size(void *f)
-{- dumb_stdfile * file = ( dumb_stdfile * ) f;
- return file->size;
-}
-
-
-
-static const DUMBFILE_SYSTEM stdfile_dfs = {- &dumb_stdfile_open,
- &dumb_stdfile_skip,
- &dumb_stdfile_getc,
- &dumb_stdfile_getnc,
- &dumb_stdfile_close,
- &dumb_stdfile_seek,
- &dumb_stdfile_get_size
-};
-
-
-
-void dumb_register_stdfiles(void)
-{- register_dumbfile_system(&stdfile_dfs);
-}
-
-
-
-static const DUMBFILE_SYSTEM stdfile_dfs_leave_open = {- NULL,
- &dumb_stdfile_skip,
- &dumb_stdfile_getc,
- &dumb_stdfile_getnc,
- &dumb_stdfile_noclose,
- &dumb_stdfile_seek,
- &dumb_stdfile_get_size
-};
-
-
-
-DUMBFILE *dumbfile_open_stdfile(FILE *p)
-{- dumb_stdfile * file = ( dumb_stdfile * ) malloc( sizeof(dumb_stdfile) );
- DUMBFILE *d;
- if ( !file ) return 0;
- file->file = p;
- fseek(p, 0, SEEK_END);
- file->size = ftell(p);
- fseek(p, 0, SEEK_SET);
- d = dumbfile_open_ex(file, &stdfile_dfs_leave_open);
-
- return d;
-}
--- a/dumb/src/helpers/tarray.c
+++ /dev/null
@@ -1,175 +1,0 @@
-#include "internal/tarray.h"
-
-#include <string.h>
-
- /*
- Structures which contain the play times of each pattern and row combination in the song,
- not guaranteed to be valid for the whole song until the loop status is no longer zero.
- The initial count and restart count will both be zero on song start, then both will be
- incremented until the song loops. Restart count will be reset to zero on loop for all
- rows which have a time equal to or greater than the loop start point, so time keeping
- functions will know which timestamp the song is currently located at.
-
- Timestamp lists are guaranteed to be allocated in blocks of 16 timestamps at a time.
- */
-
- /*
- We don't need full timekeeping because the player loop only wants the first play time
- of the loop start order/row. We also don't really want full timekeeping because it
- involves a lot of memory allocations, which is also slow.
- */
-
-#undef FULL_TIMEKEEPING
-
-typedef struct DUMB_IT_ROW_TIME
-{- unsigned int count, restart_count;
-#ifndef FULL_TIMEKEEPING
- LONG_LONG first_time;
-#else
- LONG_LONG * times;
-#endif
-} DUMB_IT_ROW_TIME;
-
-void * timekeeping_array_create(size_t size)
-{- size_t * _size = (size_t *) calloc( 1, sizeof(size_t) + sizeof(DUMB_IT_ROW_TIME) * size );
- if ( _size ) {- *_size = size;
- }
- return _size;
-}
-
-void timekeeping_array_destroy(void * array)
-{-#ifdef FULL_TIMEKEEPING
- size_t i;
- size_t * size = (size_t *) array;
- DUMB_IT_ROW_TIME * s = (DUMB_IT_ROW_TIME *)(size + 1);
-
- for (i = 0; i < *size; i++) {- if (s[i].times) free(s[i].times);
- }
-#endif
-
- free(array);
-}
-
-void * timekeeping_array_dup(void * array)
-{- size_t i;
- size_t * size = (size_t *) array;
- DUMB_IT_ROW_TIME * s = (DUMB_IT_ROW_TIME *)(size + 1);
- size_t * new_size = (size_t *) calloc( 1, sizeof(size_t) + sizeof(DUMB_IT_ROW_TIME) * *size );
- if ( new_size ) {- DUMB_IT_ROW_TIME * new_s = (DUMB_IT_ROW_TIME *)(new_size + 1);
-
- *new_size = *size;
-
- for (i = 0; i < *size; i++) {- new_s[i].count = s[i].count;
- new_s[i].restart_count = s[i].restart_count;
-
-#ifndef FULL_TIMEKEEPING
- new_s[i].first_time = s[i].first_time;
-#else
- if ( s[i].times ) {- size_t time_count = ( s[i].count + 15 ) & ~15;
- new_s[i].times = (LONG_LONG *) malloc( sizeof(LONG_LONG) * time_count );
- if ( new_s[i].times == (void *)0 ) {- timekeeping_array_destroy( new_size );
- return (void *) 0;
- }
- memcpy( new_s[i].times, s[i].times, sizeof(LONG_LONG) * s[i].count );
- }
-#endif
- }
- }
-
- return new_size;
-}
-
-void timekeeping_array_reset(void * array, size_t loop_start)
-{- size_t i;
- size_t * size = (size_t *) array;
- DUMB_IT_ROW_TIME * s = (DUMB_IT_ROW_TIME *)(size + 1);
-
- DUMB_IT_ROW_TIME * s_loop_start = s + loop_start;
- LONG_LONG loop_start_time;
-
- if ( loop_start >= *size || s_loop_start->count < 1 ) return;
-
-#ifndef FULL_TIMEKEEPING
- loop_start_time = s_loop_start->first_time;
-#else
- loop_start_time = s_loop_start->times[0];
-#endif
-
- for ( i = 0; i < *size; i++ ) {-#ifndef FULL_TIMEKEEPING
- if ( s[i].count && s[i].first_time >= loop_start_time ) {-#else
- if ( s[i].count && s[i].times[0] >= loop_start_time ) {-#endif
- s[i].restart_count = 0;
- }
- }
-}
-
-void timekeeping_array_push(void * array, size_t index, LONG_LONG time)
-{-#ifdef FULL_TIMEKEEPING
- size_t i;
- size_t time_count;
-#endif
- size_t * size = (size_t *) array;
- DUMB_IT_ROW_TIME * s = (DUMB_IT_ROW_TIME *)(size + 1);
-
- if (index >= *size) return;
-
-#ifndef FULL_TIMEKEEPING
- if ( !s[index].count++ )
- s[index].first_time = time;
-#else
- time_count = ( s[index].count + 16 ) & ~15;
-
- s[index].times = (LONG_LONG *) realloc( s[index].times, sizeof(LONG_LONG) * time_count );
-
- s[index].times[s[index].count++] = time;
-#endif
-}
-
-void timekeeping_array_bump(void * array, size_t index)
-{- size_t * size = (size_t *) array;
- DUMB_IT_ROW_TIME * s = (DUMB_IT_ROW_TIME *)(size + 1);
-
- if (index >= *size) return;
-
- s[index].restart_count++;
-}
-
-unsigned int timekeeping_array_get_count(void * array, size_t index)
-{- size_t * size = (size_t *) array;
- DUMB_IT_ROW_TIME * s = (DUMB_IT_ROW_TIME *)(size + 1);
-
- if (index >= *size) return 0;
-
- return s[index].count;
-}
-
-LONG_LONG timekeeping_array_get_item(void * array, size_t index)
-{- size_t * size = (size_t *) array;
- DUMB_IT_ROW_TIME * s = (DUMB_IT_ROW_TIME *)(size + 1);
-
- if (index >= *size || s[index].restart_count >= s[index].count) return 0;
-
-#ifndef FULL_TIMEKEEPING
- return s[index].first_time;
-#else
- return s[index].times[s[index].restart_count];
-#endif
-}
--- a/dumb/src/it/itload.c
+++ /dev/null
@@ -1,43 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * itload.c - Code to read an Impulse Tracker / / \ \
- * file, opening and closing it for | < / \_
- * you. | \/ /\ /
- * \_ / > /
- * By entheh. Don't worry Bob, you're credited | \ / /
- * in itread.c! | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_it_quick(): loads an IT file into a DUH struct, returning a
- * pointer to the DUH struct. When you have finished with it, you must pass
- * the pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_it_quick(const char *filename)
-{- DUH *duh;
- DUMBFILE *f = dumbfile_open(filename);
-
- if (!f)
- return NULL;
-
- duh = dumb_read_it_quick(f);
-
- dumbfile_close(f);
-
- return duh;
-}
-
--- a/dumb/src/it/itload2.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * itload2.c - Function to read an Impulse Tracker / / \ \
- * file, opening and closing it for | < / \_
- * you, and do an initial run-through. | \/ /\ /
- * \_ / > /
- * Split off from itload.c by entheh. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-
-
-
-DUH *dumb_load_it(const char *filename)
-{- DUH *duh = dumb_load_it_quick(filename);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/itmisc.c
+++ /dev/null
@@ -1,249 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * itmisc.c - Miscellaneous functions relating / / \ \
- * to module files. | < / \_
- * | \/ /\ /
- * By entheh. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-int dumb_it_default_panning_separation = 25;
-
-
-DUMB_IT_SIGDATA *duh_get_it_sigdata(DUH *duh)
-{- return duh_get_raw_sigdata(duh, -1, SIGTYPE_IT);
-}
-
-
-
-const unsigned char *dumb_it_sd_get_song_message(DUMB_IT_SIGDATA *sd)
-{- return sd ? sd->song_message : NULL;
-}
-
-
-
-int dumb_it_sd_get_n_orders(DUMB_IT_SIGDATA *sd)
-{- return sd ? sd->n_orders : 0;
-}
-
-
-
-int dumb_it_sd_get_n_samples(DUMB_IT_SIGDATA *sd)
-{- return sd ? sd->n_samples : 0;
-}
-
-
-
-int dumb_it_sd_get_n_instruments(DUMB_IT_SIGDATA *sd)
-{- return sd ? sd->n_instruments : 0;
-}
-
-
-
-const unsigned char *dumb_it_sd_get_sample_name(DUMB_IT_SIGDATA *sd, int i)
-{- ASSERT(sd && sd->sample && i >= 0 && i < sd->n_samples);
- return sd->sample[i].name;
-}
-
-
-
-const unsigned char *dumb_it_sd_get_sample_filename(DUMB_IT_SIGDATA *sd, int i)
-{- ASSERT(sd && sd->sample && i >= 0 && i < sd->n_samples);
- return sd->sample[i].filename;
-}
-
-
-
-const unsigned char *dumb_it_sd_get_instrument_name(DUMB_IT_SIGDATA *sd, int i)
-{- ASSERT(sd && sd->instrument && i >= 0 && i < sd->n_instruments);
- return sd->instrument[i].name;
-}
-
-
-
-const unsigned char *dumb_it_sd_get_instrument_filename(DUMB_IT_SIGDATA *sd, int i)
-{- ASSERT(sd && sd->instrument && i >= 0 && i < sd->n_instruments);
- return sd->instrument[i].filename;
-}
-
-
-
-int dumb_it_sd_get_initial_global_volume(DUMB_IT_SIGDATA *sd)
-{- return sd ? sd->global_volume : 0;
-}
-
-
-
-void dumb_it_sd_set_initial_global_volume(DUMB_IT_SIGDATA *sd, int gv)
-{- if (sd) sd->global_volume = gv;
-}
-
-
-
-int dumb_it_sd_get_mixing_volume(DUMB_IT_SIGDATA *sd)
-{- return sd ? sd->mixing_volume : 0;
-}
-
-
-
-void dumb_it_sd_set_mixing_volume(DUMB_IT_SIGDATA *sd, int mv)
-{- if (sd) sd->mixing_volume = mv;
-}
-
-
-
-int dumb_it_sd_get_initial_speed(DUMB_IT_SIGDATA *sd)
-{- return sd ? sd->speed : 0;
-}
-
-
-
-void dumb_it_sd_set_initial_speed(DUMB_IT_SIGDATA *sd, int speed)
-{- if (sd) sd->speed = speed;
-}
-
-
-
-int dumb_it_sd_get_initial_tempo(DUMB_IT_SIGDATA *sd)
-{- return sd ? sd->tempo : 0;
-}
-
-
-
-void dumb_it_sd_set_initial_tempo(DUMB_IT_SIGDATA *sd, int tempo)
-{- if (sd) sd->tempo = tempo;
-}
-
-
-
-int dumb_it_sd_get_initial_channel_volume(DUMB_IT_SIGDATA *sd, int channel)
-{- ASSERT(channel >= 0 && channel < DUMB_IT_N_CHANNELS);
- return sd ? sd->channel_volume[channel] : 0;
-}
-
-void dumb_it_sd_set_initial_channel_volume(DUMB_IT_SIGDATA *sd, int channel, int volume)
-{- ASSERT(channel >= 0 && channel < DUMB_IT_N_CHANNELS);
- if (sd) sd->channel_volume[channel] = volume;
-}
-
-
-
-int dumb_it_sr_get_current_order(DUMB_IT_SIGRENDERER *sr)
-{- return sr ? sr->order : -1;
-}
-
-
-
-int dumb_it_sr_get_current_row(DUMB_IT_SIGRENDERER *sr)
-{- return sr ? sr->row : -1;
-}
-
-
-
-int dumb_it_sr_get_global_volume(DUMB_IT_SIGRENDERER *sr)
-{- return sr ? sr->globalvolume : 0;
-}
-
-
-
-void dumb_it_sr_set_global_volume(DUMB_IT_SIGRENDERER *sr, int gv)
-{- if (sr) sr->globalvolume = gv;
-}
-
-
-
-int dumb_it_sr_get_tempo(DUMB_IT_SIGRENDERER *sr)
-{- return sr ? sr->tempo : 0;
-}
-
-
-
-void dumb_it_sr_set_tempo(DUMB_IT_SIGRENDERER *sr, int tempo)
-{- if (sr) sr->tempo = tempo;
-}
-
-
-
-int dumb_it_sr_get_speed(DUMB_IT_SIGRENDERER *sr)
-{- return sr ? sr->speed : 0;
-}
-
-
-
-void dumb_it_sr_set_speed(DUMB_IT_SIGRENDERER *sr, int speed)
-{- if (sr) sr->speed = speed;
-}
-
-
-
-int dumb_it_sr_get_channel_volume(DUMB_IT_SIGRENDERER *sr, int channel)
-{- return sr ? sr->channel[channel].channelvolume : 0;
-}
-
-
-
-void dumb_it_sr_set_channel_volume(DUMB_IT_SIGRENDERER *sr, int channel, int volume)
-{- if (sr) sr->channel[channel].channelvolume = volume;
-}
-
-
-
-void dumb_it_sr_set_channel_muted(DUMB_IT_SIGRENDERER *sr, int channel, int muted)
-{- if (sr) {- if (muted)
- sr->channel[channel].flags |= IT_CHANNEL_MUTED;
- else
- sr->channel[channel].flags &= ~IT_CHANNEL_MUTED;
- }
-}
-
-
-
-int dumb_it_sr_get_channel_muted(DUMB_IT_SIGRENDERER *sr, int channel)
-{- return sr ? (sr->channel[channel].flags & IT_CHANNEL_MUTED) != 0 : 0;
-}
--- a/dumb/src/it/itorder.c
+++ /dev/null
@@ -1,63 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * itorder.c - Code to fix invalid patterns in / / \ \
- * the pattern table. | < / \_
- * | \/ /\ /
- * By Julien Cugniere. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-
-
-#include <stdlib.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* This function ensures that any pattern mentioned in the order table but
- * not present in the pattern table is treated as an empty 64 rows pattern.
- * This is done by adding such a dummy pattern at the end of the pattern
- * table, and redirect invalid orders to it.
- * Patterns 254 and 255 are left untouched, unless the signal is an XM.
- */
-int _dumb_it_fix_invalid_orders(DUMB_IT_SIGDATA *sigdata)
-{- int i;
- int found_some = 0;
-
- int first_invalid = sigdata->n_patterns;
- int last_invalid = (sigdata->flags & IT_WAS_AN_XM) ? 255 : 253;
-
- for (i = 0; i < sigdata->n_orders; i++) {- if (sigdata->order[i] >= first_invalid && sigdata->order[i] <= last_invalid) {- sigdata->order[i] = sigdata->n_patterns;
- found_some = 1;
- }
- }
-
- if (found_some) {- IT_PATTERN *new_pattern = realloc(sigdata->pattern, sizeof(*sigdata->pattern) * (sigdata->n_patterns + 1));
- if (!new_pattern)
- return -1;
-
- new_pattern[sigdata->n_patterns].n_rows = 64;
- new_pattern[sigdata->n_patterns].n_entries = 0;
- new_pattern[sigdata->n_patterns].entry = NULL;
- sigdata->pattern = new_pattern;
- sigdata->n_patterns++;
- }
-
- return 0;
-}
--- a/dumb/src/it/itread.c
+++ /dev/null
@@ -1,1416 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * itread.c - Code to read an Impulse Tracker / / \ \
- * module from an open file. | < / \_
- * | \/ /\ /
- * Based on the loader from an IT player by Bob. \_ / > /
- * Adapted for DUMB by entheh. | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include <string.h>//might not be necessary later; required for memset
-
-#include "dumb.h"
-#include "internal/it.h"
-
-#ifndef min
-#define min(a, b) (((a) < (b)) ? (a) : (b))
-#endif
-
-
-#define INVESTIGATE_OLD_INSTRUMENTS
-
-
-
-typedef unsigned char byte;
-typedef unsigned short word;
-typedef unsigned long dword;
-
-typedef struct readblock_crap readblock_crap;
-
-struct readblock_crap {- unsigned char *sourcebuf;
- unsigned char *sourcepos;
- unsigned char *sourceend;
- int rembits;
-};
-
-
-static int readblock(DUMBFILE *f, readblock_crap * crap)
-{- long size;
- int c;
-
- size = dumbfile_igetw(f);
- if (size < 0)
- return (int)size;
-
- crap->sourcebuf = malloc(size);
- if (!crap->sourcebuf)
- return -1;
-
- c = (int)dumbfile_getnc((char *)crap->sourcebuf, size, f);
- if (c < size) {- free(crap->sourcebuf);
- crap->sourcebuf = NULL;
- return -1;
- }
-
- crap->sourcepos = crap->sourcebuf;
- crap->sourceend = crap->sourcebuf + size;
- crap->rembits = 8;
- return 0;
-}
-
-
-
-static void freeblock(readblock_crap * crap)
-{- free(crap->sourcebuf);
- crap->sourcebuf = NULL;
-}
-
-
-
-static int readbits(int bitwidth, readblock_crap * crap)
-{- int val = 0;
- int b = 0;
-
- if (crap->sourcepos >= crap->sourceend) return val;
-
- while (bitwidth > crap->rembits) {- val |= *crap->sourcepos++ << b;
- if (crap->sourcepos >= crap->sourceend) return val;
- b += crap->rembits;
- bitwidth -= crap->rembits;
- crap->rembits = 8;
- }
-
- val |= (*crap->sourcepos & ((1 << bitwidth) - 1)) << b;
- *crap->sourcepos >>= bitwidth;
- crap->rembits -= bitwidth;
-
- return val;
-}
-
-
-
-/** WARNING - do we even need to pass `right`? */
-/** WARNING - why bother memsetting at all? The whole array is written... */
-// if we do memset, dumb_silence() would be neater...
-static int decompress8(DUMBFILE *f, signed char *data, int len, int it215, int stereo)
-{- int blocklen, blockpos;
- byte bitwidth;
- word val;
- signed char d1, d2;
- readblock_crap crap;
-
- memset(&crap, 0, sizeof(crap));
-
- for (blocklen = 0, blockpos = 0; blocklen < len; blocklen++, blockpos += 1 + stereo)
- data[ blockpos ] = 0;
-
- while (len > 0) {- //Read a block of compressed data:
- if (readblock(f, &crap))
- return -1;
- //Set up a few variables
- blocklen = (len < 0x8000) ? len : 0x8000; //Max block length is 0x8000 bytes
- blockpos = 0;
- bitwidth = 9;
- d1 = d2 = 0;
- //Start the decompression:
- while (blockpos < blocklen) {- //Read a value:
- val = (word)readbits(bitwidth, &crap);
- //Check for bit width change:
-
- if (bitwidth < 7) { //Method 1:- if (val == (1 << (bitwidth - 1))) {- val = (word)readbits(3, &crap) + 1;
- bitwidth = (val < bitwidth) ? val : val + 1;
- continue;
- }
- }
- else if (bitwidth < 9) { //Method 2- byte border = (0xFF >> (9 - bitwidth)) - 4;
-
- if (val > border && val <= (border + 8)) {- val -= border;
- bitwidth = (val < bitwidth) ? val : val + 1;
- continue;
- }
- }
- else if (bitwidth == 9) { //Method 3- if (val & 0x100) {- bitwidth = (val + 1) & 0xFF;
- continue;
- }
- }
- else { //Illegal width, abort ?- freeblock(&crap);
- return -1;
- }
-
- //Expand the value to signed byte:
- {- signed char v; //The sample value:
- if (bitwidth < 8) {- byte shift = 8 - bitwidth;
- v = (val << shift);
- v >>= shift;
- }
- else
- v = (signed char)val;
-
- //And integrate the sample value
- //(It always has to end with integration doesn't it ? ;-)
- d1 += v;
- d2 += d1;
- }
-
- //Store !
- /* Version 2.15 was an unofficial version with hacked compression
- * code. Yay, better compression :D
- */
- *data++ = it215 ? d2 : d1;
- data += stereo;
- len--;
- blockpos++;
- }
- freeblock(&crap);
- }
- return 0;
-}
-
-
-
-static int decompress16(DUMBFILE *f, short *data, int len, int it215, int stereo)
-{- int blocklen, blockpos;
- byte bitwidth;
- long val;
- signed short d1, d2;
- readblock_crap crap;
-
- memset(&crap, 0, sizeof(crap));
-
- for ( blocklen = 0, blockpos = 0; blocklen < len; blocklen++, blockpos += 1 + stereo )
- data[ blockpos ] = 0;
-
- while (len > 0) {- //Read a block of compressed data:
- if (readblock(f, &crap))
- return -1;
- //Set up a few variables
- blocklen = (len < 0x4000) ? len : 0x4000; // Max block length is 0x4000 bytes
- blockpos = 0;
- bitwidth = 17;
- d1 = d2 = 0;
- //Start the decompression:
- while (blockpos < blocklen) {- val = readbits(bitwidth, &crap);
- //Check for bit width change:
-
- if (bitwidth < 7) { //Method 1:- if (val == (1 << (bitwidth - 1))) {- val = readbits(4, &crap) + 1;
- bitwidth = (val < bitwidth) ? val : val + 1;
- continue;
- }
- }
- else if (bitwidth < 17) { //Method 2- word border = (0xFFFF >> (17 - bitwidth)) - 8;
-
- if (val > border && val <= (border + 16)) {- val -= border;
- bitwidth = val < bitwidth ? val : val + 1;
- continue;
- }
- }
- else if (bitwidth == 17) { //Method 3- if (val & 0x10000) {- bitwidth = (val + 1) & 0xFF;
- continue;
- }
- }
- else { //Illegal width, abort ?- freeblock(&crap);
- return -1;
- }
-
- //Expand the value to signed byte:
- {- short v; //The sample value:
- if (bitwidth < 16) {- byte shift = 16 - bitwidth;
- v = (short)(val << shift);
- v >>= shift;
- }
- else
- v = (short)val;
-
- //And integrate the sample value
- //(It always has to end with integration doesn't it ? ;-)
- d1 += v;
- d2 += d1;
- }
-
- //Store !
- /* Version 2.15 was an unofficial version with hacked compression
- * code. Yay, better compression :D
- */
- *data++ = it215 ? d2 : d1;
- data += stereo;
- len--;
- blockpos++;
- }
- freeblock(&crap);
- }
- return 0;
-}
-
-
-
-static int it_read_envelope(IT_ENVELOPE *envelope, DUMBFILE *f)
-{- int n;
-
- envelope->flags = dumbfile_getc(f);
- envelope->n_nodes = dumbfile_getc(f);
- if(envelope->n_nodes > 25) {- TRACE("IT error: wrong number of envelope nodes (%d)\n", envelope->n_nodes);- envelope->n_nodes = 0;
- return -1;
- }
- envelope->loop_start = dumbfile_getc(f);
- envelope->loop_end = dumbfile_getc(f);
- envelope->sus_loop_start = dumbfile_getc(f);
- envelope->sus_loop_end = dumbfile_getc(f);
- for (n = 0; n < envelope->n_nodes; n++) {- envelope->node_y[n] = dumbfile_getc(f);
- envelope->node_t[n] = dumbfile_igetw(f);
- }
- dumbfile_skip(f, 75 - envelope->n_nodes * 3 + 1);
-
- if (envelope->n_nodes <= 0)
- envelope->flags &= ~IT_ENVELOPE_ON;
- else {- if (envelope->loop_end >= envelope->n_nodes || envelope->loop_start > envelope->loop_end) envelope->flags &= ~IT_ENVELOPE_LOOP_ON;
- if (envelope->sus_loop_end >= envelope->n_nodes || envelope->sus_loop_start > envelope->sus_loop_end) envelope->flags &= ~IT_ENVELOPE_SUSTAIN_LOOP;
- }
-
- return dumbfile_error(f);
-}
-
-
-
-static int it_read_old_instrument(IT_INSTRUMENT *instrument, DUMBFILE *f)
-{- int n;
-
- /*if (dumbfile_mgetl(f) != IT_INSTRUMENT_SIGNATURE)
- return -1;*/
- // XXX
- dumbfile_skip(f, 4);
-
- dumbfile_getnc((char *)instrument->filename, 13, f);
- instrument->filename[13] = 0;
-
- instrument->volume_envelope.flags = dumbfile_getc(f);
- instrument->volume_envelope.loop_start = dumbfile_getc(f);
- instrument->volume_envelope.loop_end = dumbfile_getc(f);
- instrument->volume_envelope.sus_loop_start = dumbfile_getc(f);
- instrument->volume_envelope.sus_loop_end = dumbfile_getc(f);
-
- /* Skip two unused bytes. */
- dumbfile_skip(f, 2);
-
- /* In the old instrument format, fadeout ranges from 0 to 64, and is
- * subtracted at intervals from a value starting at 512. In the new
- * format, all these values are doubled. Therefore we double when loading
- * from the old instrument format - that way we don't have to think about
- * it later.
- */
- instrument->fadeout = dumbfile_igetw(f) << 1;
- instrument->new_note_action = dumbfile_getc(f);
- instrument->dup_check_type = dumbfile_getc(f);
- instrument->dup_check_action = DCA_NOTE_CUT; // This might be wrong!
- /** WARNING - what is the duplicate check action for old-style instruments? */
-
- /* Skip Tracker Version and Number of Samples. These are only used in
- * separate instrument files. Also skip unused byte.
- */
- dumbfile_skip(f, 4);
-
- dumbfile_getnc((char *)instrument->name, 26, f);
- instrument->name[26] = 0;
-
- /* Skip unused bytes following the Instrument Name. */
- dumbfile_skip(f, 6);
-
- instrument->pp_separation = 0;
- instrument->pp_centre = 60;
- instrument->global_volume = 128;
- /** WARNING - should global_volume be 64 or something? */
- instrument->default_pan = 32;
- /** WARNING - should default_pan be 128, meaning don`t use? */
- instrument->random_volume = 0;
- instrument->random_pan = 0;
-
- for (n = 0; n < 120; n++) {- instrument->map_note[n] = dumbfile_getc(f);
- instrument->map_sample[n] = dumbfile_getc(f);
- }
-
- /* Skip "Volume envelope (200 bytes)". */
- // - need to know better what this is for though.
- dumbfile_skip(f, 200);
-
-#ifdef INVESTIGATE_OLD_INSTRUMENTS
- fprintf(stderr, "Inst %02d Env:", n);
-#endif
-
- for (n = 0; n < 25; n++)
- {- instrument->volume_envelope.node_t[n] = dumbfile_getc(f);
- instrument->volume_envelope.node_y[n] = dumbfile_getc(f);
-
-#ifdef INVESTIGATE_OLD_INSTRUMENTS
- fprintf(stderr, " %d,%d",
- instrument->volume_envelope.node_t[n],
- instrument->volume_envelope.node_y[n]);
-#endif
-
- // This loop is unfinished, as we can probably escape from it before
- // the end if we want to. Hence the otherwise useless dumbfile_skip()
- // call below.
- }
- dumbfile_skip(f, 50 - (n << 1));
- instrument->volume_envelope.n_nodes = n;
-
-#ifdef INVESTIGATE_OLD_INSTRUMENTS
- fprintf(stderr, "\n");
-#endif
-
- if (dumbfile_error(f))
- return -1;
-
- {- IT_ENVELOPE *envelope = &instrument->volume_envelope;
- if (envelope->n_nodes <= 0)
- envelope->flags &= ~IT_ENVELOPE_ON;
- else {- if (envelope->loop_end >= envelope->n_nodes || envelope->loop_start > envelope->loop_end) envelope->flags &= ~IT_ENVELOPE_LOOP_ON;
- if (envelope->sus_loop_end >= envelope->n_nodes || envelope->sus_loop_start > envelope->sus_loop_end) envelope->flags &= ~IT_ENVELOPE_SUSTAIN_LOOP;
- }
- }
-
- instrument->filter_cutoff = 127;
- instrument->filter_resonance = 0;
-
- instrument->pan_envelope.flags = 0;
- instrument->pitch_envelope.flags = 0;
-
- return 0;
-}
-
-
-
-static int it_read_instrument(IT_INSTRUMENT *instrument, DUMBFILE *f, int maxlen)
-{- int n;
- long len;
-
- /*if (dumbfile_mgetl(f) != IT_INSTRUMENT_SIGNATURE)
- return -1;*/
- // XXX
-
- if (maxlen) len = dumbfile_pos(f);
- else len = 0;
-
- dumbfile_skip(f, 4);
-
- dumbfile_getnc((char *)instrument->filename, 13, f);
- instrument->filename[13] = 0;
-
- instrument->new_note_action = dumbfile_getc(f);
- instrument->dup_check_type = dumbfile_getc(f);
- instrument->dup_check_action = dumbfile_getc(f);
- instrument->fadeout = dumbfile_igetw(f);
- instrument->pp_separation = dumbfile_getc(f);
- instrument->pp_centre = dumbfile_getc(f);
- instrument->global_volume = dumbfile_getc(f);
- instrument->default_pan = dumbfile_getc(f);
- instrument->random_volume = dumbfile_getc(f);
- instrument->random_pan = dumbfile_getc(f);
-
- /* Skip Tracker Version and Number of Samples. These are only used in
- * separate instrument files. Also skip unused byte.
- */
- dumbfile_skip(f, 4);
-
- dumbfile_getnc((char *)instrument->name, 26, f);
- instrument->name[26] = 0;
-
- instrument->filter_cutoff = dumbfile_getc(f);
- instrument->filter_resonance = dumbfile_getc(f);
-
- /* Skip MIDI Channel, Program and Bank. */
- //dumbfile_skip(f, 4);
- /*instrument->output = dumbfile_getc(f);
- if ( instrument->output > 16 ) {- instrument->output -= 128;
- } else {- instrument->output = 0;
- }
- dumbfile_skip(f, 3);*/
- dumbfile_skip(f, 4);
-
- for (n = 0; n < 120; n++) {- instrument->map_note[n] = dumbfile_getc(f);
- instrument->map_sample[n] = dumbfile_getc(f);
- }
-
- if (dumbfile_error(f))
- return -1;
-
- if (it_read_envelope(&instrument->volume_envelope, f)) return -1;
- if (it_read_envelope(&instrument->pan_envelope, f)) return -1;
- if (it_read_envelope(&instrument->pitch_envelope, f)) return -1;
-
- if (maxlen) {- len = dumbfile_pos(f) - len;
- if ( maxlen - len < 124 ) return 0;
- }
-
- if ( dumbfile_mgetl(f) == IT_MPTX_SIGNATURE ) {- for ( n = 0; n < 120; n++ ) {- instrument->map_sample[ n ] += dumbfile_getc( f ) << 8;
- }
-
- if (dumbfile_error(f))
- return -1;
- }
-
- /*if ( dumbfile_mgetl(f) == IT_INSM_SIGNATURE ) {- long end = dumbfile_igetl(f);
- end += dumbfile_pos(f);
- while ( dumbfile_pos(f) < end ) {- int chunkid = dumbfile_igetl(f);
- switch ( chunkid ) {- case DUMB_ID('P','L','U','G'):- instrument->output = dumbfile_getc(f);
- break;
- default:
- chunkid = chunkid / 0x100 + dumbfile_getc(f) * 0x1000000;
- break;
- }
- }
-
- if (dumbfile_error(f))
- return -1;
- }*/
-
- return 0;
-}
-
-
-
-static int it_read_sample_header(IT_SAMPLE *sample, unsigned char *convert, long *offset, DUMBFILE *f)
-{- /* XXX
- if (dumbfile_mgetl(f) != IT_SAMPLE_SIGNATURE)
- return -1;*/
- int hax = 0;
- long s = dumbfile_mgetl(f);
- if (s != IT_SAMPLE_SIGNATURE) {- if ( s == ( IT_SAMPLE_SIGNATURE >> 16 ) ) {- s <<= 16;
- s |= dumbfile_mgetw(f);
- if ( s != IT_SAMPLE_SIGNATURE )
- return -1;
- hax = 1;
- }
- }
-
- dumbfile_getnc((char *)sample->filename, 13, f);
- sample->filename[13] = 0;
-
- sample->global_volume = dumbfile_getc(f);
- sample->flags = dumbfile_getc(f);
- sample->default_volume = dumbfile_getc(f);
-
- dumbfile_getnc((char *)sample->name, 26, f);
- sample->name[26] = 0;
-
- *convert = dumbfile_getc(f);
- sample->default_pan = dumbfile_getc(f);
- sample->length = dumbfile_igetl(f);
- sample->loop_start = dumbfile_igetl(f);
- sample->loop_end = dumbfile_igetl(f);
- sample->C5_speed = dumbfile_igetl(f);
- sample->sus_loop_start = dumbfile_igetl(f);
- sample->sus_loop_end = dumbfile_igetl(f);
-
-#ifdef STEREO_SAMPLES_COUNT_AS_TWO
- if (sample->flags & IT_SAMPLE_STEREO) {- sample->length >>= 1;
- sample->loop_start >>= 1;
- sample->loop_end >>= 1;
- sample->C5_speed >>= 1;
- sample->sus_loop_start >>= 1;
- sample->sus_loop_end >>= 1;
- }
-#endif
-
- if (sample->flags & IT_SAMPLE_EXISTS) {- if (sample->length <= 0)
- sample->flags &= ~IT_SAMPLE_EXISTS;
- else {- if ((unsigned int)sample->loop_end > (unsigned int)sample->length)
- sample->flags &= ~IT_SAMPLE_LOOP;
- else if ((unsigned int)sample->loop_start >= (unsigned int)sample->loop_end)
- sample->flags &= ~IT_SAMPLE_LOOP;
-
- if ((unsigned int)sample->sus_loop_end > (unsigned int)sample->length)
- sample->flags &= ~IT_SAMPLE_SUS_LOOP;
- else if ((unsigned int)sample->sus_loop_start >= (unsigned int)sample->sus_loop_end)
- sample->flags &= ~IT_SAMPLE_SUS_LOOP;
-
- /* We may be able to truncate the sample to save memory. */
- if (sample->flags & IT_SAMPLE_LOOP &&
- *convert != 0xFF) { /* not truncating compressed samples, for now... */- if ((sample->flags & IT_SAMPLE_SUS_LOOP) && sample->sus_loop_end >= sample->loop_end)
- sample->length = sample->sus_loop_end;
- else
- sample->length = sample->loop_end;
- }
- }
- }
-
- *offset = dumbfile_igetl(f);
-
- sample->vibrato_speed = dumbfile_getc(f);
- sample->vibrato_depth = dumbfile_getc(f);
- if ( ! hax ) {- sample->vibrato_rate = dumbfile_getc(f);
- sample->vibrato_waveform = dumbfile_getc(f);
- } else {- sample->vibrato_rate = 0;
- sample->vibrato_waveform = 0;
- }
- sample->finetune = 0;
- sample->max_resampling_quality = -1;
-
- return dumbfile_error(f);
-}
-
-long _dumb_it_read_sample_data_adpcm4(IT_SAMPLE *sample, DUMBFILE *f)
-{- long n, len, delta;
- signed char * ptr, * end;
- signed char compression_table[16];
- if (dumbfile_getnc((char *)compression_table, 16, f) != 16)
- return -1;
- ptr = (signed char *) sample->data;
- delta = 0;
-
- end = ptr + sample->length;
- len = (sample->length + 1) / 2;
- for (n = 0; n < len; n++) {- int b = dumbfile_getc(f);
- if (b < 0) return -1;
- delta += compression_table[b & 0x0F];
- *ptr++ = delta;
- if (ptr >= end) break;
- delta += compression_table[b >> 4];
- *ptr++ = delta;
- }
-
- return 0;
-}
-
-
-static long it_read_sample_data(IT_SAMPLE *sample, unsigned char convert, DUMBFILE *f)
-{- long n;
-
- long datasize = sample->length;
- if (sample->flags & IT_SAMPLE_STEREO) datasize <<= 1;
-
- sample->data = malloc(datasize * (sample->flags & IT_SAMPLE_16BIT ? 2 : 1));
- if (!sample->data)
- return -1;
-
- if (!(sample->flags & IT_SAMPLE_16BIT) && (convert == 0xFF)) {- if (_dumb_it_read_sample_data_adpcm4(sample, f) < 0)
- return -1;
- } else if (sample->flags & 8) {- /* If the sample is packed, then we must unpack it. */
-
- /* Behavior as defined by greasemonkey's munch.py and observed by XMPlay and OpenMPT */
-
- if (sample->flags & IT_SAMPLE_STEREO) {- if (sample->flags & IT_SAMPLE_16BIT) {- decompress16(f, (short *) sample->data, (int)(datasize >> 1), convert & 4, 1);
- decompress16(f, (short *) sample->data + 1, (int)(datasize >> 1), convert & 4, 1);
- } else {- decompress8(f, (signed char *) sample->data, (int)(datasize >> 1), convert & 4, 1);
- decompress8(f, (signed char *) sample->data + 1, (int)(datasize >> 1), convert & 4, 1);
- }
- } else {- if (sample->flags & IT_SAMPLE_16BIT)
- decompress16(f, (short *) sample->data, (int)datasize, convert & 4, 0);
- else
- decompress8(f, (signed char *) sample->data, (int)datasize, convert & 4, 0);
- }
- } else if (sample->flags & IT_SAMPLE_16BIT) {- if (sample->flags & IT_SAMPLE_STEREO) {- if (convert & 2) {- for (n = 0; n < datasize; n += 2)
- ((short *)sample->data)[n] = dumbfile_mgetw(f);
- for (n = 1; n < datasize; n += 2)
- ((short *)sample->data)[n] = dumbfile_mgetw(f);
- } else {- for (n = 0; n < datasize; n += 2)
- ((short *)sample->data)[n] = dumbfile_igetw(f);
- for (n = 1; n < datasize; n += 2)
- ((short *)sample->data)[n] = dumbfile_igetw(f);
- }
- } else {- if (convert & 2)
- for (n = 0; n < datasize; n++)
- ((short *)sample->data)[n] = dumbfile_mgetw(f);
- else
- for (n = 0; n < datasize; n++)
- ((short *)sample->data)[n] = dumbfile_igetw(f);
- }
- } else {- if (sample->flags & IT_SAMPLE_STEREO) {- for (n = 0; n < datasize; n += 2)
- ((signed char *)sample->data)[n] = dumbfile_getc(f);
- for (n = 1; n < datasize; n += 2)
- ((signed char *)sample->data)[n] = dumbfile_getc(f);
- } else
- for (n = 0; n < datasize; n++)
- ((signed char *)sample->data)[n] = dumbfile_getc(f);
- }
-
- if (dumbfile_error(f))
- return -1;
-
- if (!(convert & 1)) {- /* Convert to signed. */
- if (sample->flags & IT_SAMPLE_16BIT)
- for (n = 0; n < datasize; n++)
- ((short *)sample->data)[n] ^= 0x8000;
- else
- for (n = 0; n < datasize; n++)
- ((signed char *)sample->data)[n] ^= 0x80;
- }
-
- /* NOT SUPPORTED:
- *
- * convert & 4 - Samples stored as delta values
- * convert & 16 - Samples stored as TX-Wave 12-bit values
- * convert & 32 - Left/Right/All Stereo prompt
- */
-
- return 0;
-}
-
-
-
-//#define DETECT_DUPLICATE_CHANNELS
-#ifdef DETECT_DUPLICATE_CHANNELS
-#include <stdio.h>
-#endif
-static int it_read_pattern(IT_PATTERN *pattern, DUMBFILE *f, unsigned char *buffer)
-{- unsigned char cmask[DUMB_IT_N_CHANNELS];
- unsigned char cnote[DUMB_IT_N_CHANNELS];
- unsigned char cinstrument[DUMB_IT_N_CHANNELS];
- unsigned char cvolpan[DUMB_IT_N_CHANNELS];
- unsigned char ceffect[DUMB_IT_N_CHANNELS];
- unsigned char ceffectvalue[DUMB_IT_N_CHANNELS];
-#ifdef DETECT_DUPLICATE_CHANNELS
- IT_ENTRY *dupentry[DUMB_IT_N_CHANNELS];
-#endif
-
- int n_entries = 0;
- int buflen;
- int bufpos = 0;
-
- IT_ENTRY *entry;
-
- unsigned char channel;
- unsigned char mask;
-
- memset(cmask, 0, sizeof(cmask));
- memset(cnote, 0, sizeof(cnote));
- memset(cinstrument, 0, sizeof(cinstrument));
- memset(cvolpan, 0, sizeof(cvolpan));
- memset(ceffect, 0, sizeof(ceffect));
- memset(ceffectvalue, 0, sizeof(ceffectvalue));
-#ifdef DETECT_DUPLICATE_CHANNELS
- {- int i;
- for (i = 0; i < DUMB_IT_N_CHANNELS; i++) dupentry[i] = NULL;
- }
-#endif
-
- buflen = dumbfile_igetw(f);
- pattern->n_rows = dumbfile_igetw(f);
-
- /* Skip four unused bytes. */
- dumbfile_skip(f, 4);
-
- if (dumbfile_error(f))
- return -1;
-
- /* Read in the pattern data. */
- dumbfile_getnc((char *)buffer, buflen, f);
-
- if (dumbfile_error(f))
- return -1;
-
- /* Scan the pattern data, and work out how many entries we need room for. */
- while (bufpos < buflen) {- unsigned char b = buffer[bufpos++];
-
- if (b == 0) {- /* End of row */
- n_entries++;
- continue;
- }
-
- channel = (b - 1) & 63;
-
- if (b & 128)
- cmask[channel] = mask = buffer[bufpos++];
- else
- mask = cmask[channel];
-
- {- static const unsigned char used[16] = {0, 1, 1, 2, 1, 2, 2, 3, 2, 3, 3, 4, 3, 4, 4, 5};- n_entries += (mask != 0);
- bufpos += used[mask & 15];
- }
- }
-
- pattern->n_entries = n_entries;
-
- pattern->entry = malloc(n_entries * sizeof(*pattern->entry));
-
- if (!pattern->entry)
- return -1;
-
- bufpos = 0;
- memset(cmask, 0, sizeof(cmask));
-
- entry = pattern->entry;
-
- while (bufpos < buflen) {- unsigned char b = buffer[bufpos++];
-
- if (b == 0) {- /* End of row */
- IT_SET_END_ROW(entry);
- entry++;
-#ifdef DETECT_DUPLICATE_CHANNELS
- {- int i;
- for (i = 0; i < DUMB_IT_N_CHANNELS; i++) dupentry[i] = NULL;
- }
-#endif
- continue;
- }
-
- channel = (b - 1) & 63;
-
- if (b & 128)
- cmask[channel] = mask = buffer[bufpos++];
- else
- mask = cmask[channel];
-
- if (mask) {- entry->mask = (mask & 15) | (mask >> 4);
- entry->channel = channel;
-
- if (mask & IT_ENTRY_NOTE)
- cnote[channel] = entry->note = buffer[bufpos++];
- else if (mask & (IT_ENTRY_NOTE << 4))
- entry->note = cnote[channel];
-
- if (mask & IT_ENTRY_INSTRUMENT)
- cinstrument[channel] = entry->instrument = buffer[bufpos++];
- else if (mask & (IT_ENTRY_INSTRUMENT << 4))
- entry->instrument = cinstrument[channel];
-
- if (mask & IT_ENTRY_VOLPAN)
- cvolpan[channel] = entry->volpan = buffer[bufpos++];
- else if (mask & (IT_ENTRY_VOLPAN << 4))
- entry->volpan = cvolpan[channel];
-
- if (mask & IT_ENTRY_EFFECT) {- ceffect[channel] = entry->effect = buffer[bufpos++];
- ceffectvalue[channel] = entry->effectvalue = buffer[bufpos++];
- } else {- entry->effect = ceffect[channel];
- entry->effectvalue = ceffectvalue[channel];
- }
-
-#ifdef DETECT_DUPLICATE_CHANNELS
- if (dupentry[channel]) {- FILE *f = fopen("dupentry.txt", "a");- if (!f) abort();
- fprintf(f, "Two events on channel %d:", channel);
- fprintf(f, " Event #1:");
- if (dupentry[channel]->mask & IT_ENTRY_NOTE ) fprintf(f, " %03d", dupentry[channel]->note ); else fprintf(f, " ...");
- if (dupentry[channel]->mask & IT_ENTRY_INSTRUMENT) fprintf(f, " %03d", dupentry[channel]->instrument); else fprintf(f, " ...");
- if (dupentry[channel]->mask & IT_ENTRY_VOLPAN ) fprintf(f, " %03d", dupentry[channel]->volpan ); else fprintf(f, " ...");
- if (dupentry[channel]->mask & IT_ENTRY_EFFECT) fprintf(f, " %c%02X\n", 'A' - 1 + dupentry[channel]->effect, dupentry[channel]->effectvalue); else fprintf(f, " ...\n");
- fprintf(f, " Event #2:");
- if (entry->mask & IT_ENTRY_NOTE ) fprintf(f, " %03d", entry->note ); else fprintf(f, " ...");
- if (entry->mask & IT_ENTRY_INSTRUMENT) fprintf(f, " %03d", entry->instrument); else fprintf(f, " ...");
- if (entry->mask & IT_ENTRY_VOLPAN ) fprintf(f, " %03d", entry->volpan ); else fprintf(f, " ...");
- if (entry->mask & IT_ENTRY_EFFECT) fprintf(f, " %c%02X\n", 'A' - 1 + entry->effect, entry->effectvalue); else fprintf(f, " ...\n");
- fclose(f);
- }
- dupentry[channel] = entry;
-#endif
-
- entry++;
- }
- }
-
- ASSERT(entry == pattern->entry + n_entries);
-
- return 0;
-}
-
-
-
-/* Currently we assume the sample data are stored after the sample headers in
- * module files. This assumption may be unjustified; let me know if you have
- * trouble.
- */
-
-#define IT_COMPONENT_SONG_MESSAGE 1
-#define IT_COMPONENT_INSTRUMENT 2
-#define IT_COMPONENT_PATTERN 3
-#define IT_COMPONENT_SAMPLE 4
-
-typedef struct IT_COMPONENT
-{- unsigned char type;
- unsigned short n;
- long offset;
- short sampfirst; /* component[sampfirst] = first sample data after this */
- short sampnext; /* sampnext is used to create linked lists of sample data */
-}
-IT_COMPONENT;
-
-
-
-static int it_component_compare(const void *e1, const void *e2)
-{- return (int)(((const IT_COMPONENT *)e1)->offset -
- ((const IT_COMPONENT *)e2)->offset);
-}
-
-
-
-static sigdata_t *it_load_sigdata(DUMBFILE *f)
-{- DUMB_IT_SIGDATA *sigdata;
-
- int cwt, cmwt;
- int special;
- int message_length, message_offset;
-
- IT_COMPONENT *component;
- int n_components = 0;
-
- unsigned char sample_convert[4096];
-
- int n;
-
- unsigned char *buffer;
-
- if (dumbfile_mgetl(f) != IT_SIGNATURE)
- {- return NULL;
- }
-
- sigdata = malloc(sizeof(*sigdata));
-
- if (!sigdata)
- {- return NULL;
- }
-
- sigdata->song_message = NULL;
- sigdata->order = NULL;
- sigdata->instrument = NULL;
- sigdata->sample = NULL;
- sigdata->pattern = NULL;
- sigdata->midi = NULL;
- sigdata->checkpoint = NULL;
-
- dumbfile_getnc((char *)sigdata->name, 26, f);
- sigdata->name[26] = 0;
-
- /* Skip pattern row highlight info. */
- dumbfile_skip(f, 2);
-
- sigdata->n_orders = dumbfile_igetw(f);
- sigdata->n_instruments = dumbfile_igetw(f);
- sigdata->n_samples = dumbfile_igetw(f);
- sigdata->n_patterns = dumbfile_igetw(f);
-
- cwt = dumbfile_igetw(f);
- cmwt = dumbfile_igetw(f);
-
- sigdata->flags = dumbfile_igetw(f);
- special = dumbfile_igetw(f);
-
- sigdata->global_volume = dumbfile_getc(f);
- sigdata->mixing_volume = dumbfile_getc(f);
- sigdata->speed = dumbfile_getc(f);
- if (sigdata->speed == 0) sigdata->speed = 6; // Should we? What about tempo?
- sigdata->tempo = dumbfile_getc(f);
- sigdata->pan_separation = dumbfile_getc(f); /** WARNING: use this */
-
- /* Skip Pitch Wheel Depth */
- dumbfile_skip(f, 1);
-
- message_length = dumbfile_igetw(f);
- message_offset = (int)dumbfile_igetl(f);
-
- /* Skip Reserved. */
- dumbfile_skip(f, 4);
-
- dumbfile_getnc((char *)sigdata->channel_pan, DUMB_IT_N_CHANNELS, f);
- dumbfile_getnc((char *)sigdata->channel_volume, DUMB_IT_N_CHANNELS, f);
-
- // XXX sample count
- if (dumbfile_error(f) || sigdata->n_orders <= 0 || sigdata->n_instruments > 256 || sigdata->n_samples > 4000 || sigdata->n_patterns > 256) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- sigdata->order = malloc(sigdata->n_orders);
- if (!sigdata->order) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- if (sigdata->n_instruments) {- sigdata->instrument = malloc(sigdata->n_instruments * sizeof(*sigdata->instrument));
- if (!sigdata->instrument) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- }
-
- if (sigdata->n_samples) {- sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
- if (!sigdata->sample) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (n = 0; n < sigdata->n_samples; n++)
- sigdata->sample[n].data = NULL;
- }
-
- if (sigdata->n_patterns) {- sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
- if (!sigdata->pattern) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (n = 0; n < sigdata->n_patterns; n++)
- sigdata->pattern[n].entry = NULL;
- }
-
- dumbfile_getnc((char *)sigdata->order, sigdata->n_orders, f);
- sigdata->restart_position = 0;
-
- component = malloc(769 * sizeof(*component));
- if (!component) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- if (special & 1) {- component[n_components].type = IT_COMPONENT_SONG_MESSAGE;
- component[n_components].offset = message_offset;
- component[n_components].sampfirst = -1;
- n_components++;
- }
-
- for (n = 0; n < sigdata->n_instruments; n++) {- component[n_components].type = IT_COMPONENT_INSTRUMENT;
- component[n_components].n = n;
- component[n_components].offset = dumbfile_igetl(f);
- component[n_components].sampfirst = -1;
- n_components++;
- }
-
- for (n = 0; n < sigdata->n_samples; n++) {- component[n_components].type = IT_COMPONENT_SAMPLE;
- component[n_components].n = n;
- component[n_components].offset = dumbfile_igetl(f);
- component[n_components].sampfirst = -1;
- n_components++;
- }
-
- for (n = 0; n < sigdata->n_patterns; n++) {- long offset = dumbfile_igetl(f);
- if (offset) {- component[n_components].type = IT_COMPONENT_PATTERN;
- component[n_components].n = n;
- component[n_components].offset = offset;
- component[n_components].sampfirst = -1;
- n_components++;
- } else {- /* Empty 64-row pattern */
- sigdata->pattern[n].n_rows = 64;
- sigdata->pattern[n].n_entries = 0;
- }
- }
-
- if (dumbfile_error(f)) {- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- /*
- if (!(sigdata->flags & 128) != !(special & 8)) {- fprintf(stderr, "Flags Bit 7 (\"Request embedded MIDI configuration\"): %s\n", sigdata->flags & 128 ? "=SET=" : "clear");
- fprintf(stderr, "Special Bit 3 (\"MIDI configuration embedded\") : %s\n", special & 8 ? "=SET=" : "clear");
- fprintf(stderr, "entheh would like to investigate this IT file.\n");
- fprintf(stderr, "Please contact him! entheh@users.sf.net\n");
- }
- */
-
- if (special & 8) {- /* MIDI configuration is embedded. */
- unsigned char mididata[32];
- int i;
- sigdata->midi = malloc(sizeof(*sigdata->midi));
- if (!sigdata->midi) {- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- // Should we be happy with this outcome in some situations?
- }
- // What are we skipping?
- i = dumbfile_igetw(f);
- if (dumbfile_error(f) || dumbfile_skip(f, 8*i)) {- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- /* Read embedded MIDI configuration */
- // What are the first 9 commands for?
- if (dumbfile_skip(f, 32*9)) {- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (i = 0; i < 16; i++) {- unsigned char len = 0;
- int j, leftdigit = -1;
- if (dumbfile_getnc((char *)mididata, 32, f) < 32) {- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- sigdata->midi->SFmacroz[i] = 0;
- for (j = 0; j < 32; j++) {- if (leftdigit >= 0) {- if (mididata[j] == 0) {- sigdata->midi->SFmacro[i][len++] = leftdigit;
- break;
- } else if (mididata[j] == ' ')
- sigdata->midi->SFmacro[i][len++] = leftdigit;
- else if (mididata[j] >= '0' && mididata[j] <= '9')
- sigdata->midi->SFmacro[i][len++] = (leftdigit << 4) | (mididata[j] - '0');
- else if (mididata[j] >= 'A' && mididata[j] <= 'F')
- sigdata->midi->SFmacro[i][len++] = (leftdigit << 4) | (mididata[j] - 'A' + 0xA);
- leftdigit = -1;
- } else if (mididata[j] == 0)
- break;
- else if (mididata[j] == 'z')
- sigdata->midi->SFmacroz[i] |= 1 << len++;
- else if (mididata[j] >= '0' && mididata[j] <= '9')
- leftdigit = mididata[j] - '0';
- else if (mididata[j] >= 'A' && mididata[j] <= 'F')
- leftdigit = mididata[j] - 'A' + 0xA;
- }
- sigdata->midi->SFmacrolen[i] = len;
- }
- for (i = 0; i < 128; i++) {- unsigned char len = 0;
- int j, leftdigit = -1;
- dumbfile_getnc((char *)mididata, 32, f);
- for (j = 0; j < 32; j++) {- if (leftdigit >= 0) {- if (mididata[j] == 0) {- sigdata->midi->Zmacro[i][len++] = leftdigit;
- break;
- } else if (mididata[j] == ' ')
- sigdata->midi->Zmacro[i][len++] = leftdigit;
- else if (mididata[j] >= '0' && mididata[j] <= '9')
- sigdata->midi->Zmacro[i][len++] = (leftdigit << 4) | (mididata[j] - '0');
- else if (mididata[j] >= 'A' && mididata[j] <= 'F')
- sigdata->midi->Zmacro[i][len++] = (leftdigit << 4) | (mididata[j] - 'A' + 0xA);
- leftdigit = -1;
- } else if (mididata[j] == 0)
- break;
- else if (mididata[j] >= '0' && mididata[j] <= '9')
- leftdigit = mididata[j] - '0';
- else if (mididata[j] >= 'A' && mididata[j] <= 'F')
- leftdigit = mididata[j] - 'A' + 0xA;
- }
- sigdata->midi->Zmacrolen[i] = len;
- }
- }
-
- sigdata->flags &= IT_REAL_FLAGS;
-
- qsort(component, n_components, sizeof(IT_COMPONENT), &it_component_compare);
-
- buffer = malloc(65536);
- if (!buffer) {- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- for (n = 0; n < n_components; n++) {- long offset;
- int m;
-
- /* XXX */
- if ( component[n].offset == 0 ) {- switch (component[n].type) {- case IT_COMPONENT_INSTRUMENT:
- memset( &sigdata->instrument[component[n].n], 0, sizeof(IT_INSTRUMENT) );
- break;
- case IT_COMPONENT_SAMPLE:
- memset( &sigdata->sample[component[n].n], 0, sizeof(IT_SAMPLE) );
- break;
- case IT_COMPONENT_PATTERN:
- {- IT_PATTERN * p = &sigdata->pattern[component[n].n];
- p->entry = 0;
- p->n_rows = 64;
- p->n_entries = 0;
- }
- break;
- }
- continue;
- }
-
- if (dumbfile_seek(f, component[n].offset, DFS_SEEK_SET)) {- free(buffer);
- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- switch (component[n].type) {-
- case IT_COMPONENT_SONG_MESSAGE:
- if ( n < n_components ) {- message_length = min( message_length, (int)(component[n+1].offset - component[n].offset) );
- }
- sigdata->song_message = malloc(message_length + 1);
- if (sigdata->song_message) {- if (dumbfile_getnc((char *)sigdata->song_message, message_length, f) < message_length) {- free(buffer);
- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- sigdata->song_message[message_length] = 0;
- }
- break;
-
- case IT_COMPONENT_INSTRUMENT:
- if (cmwt < 0x200)
- m = it_read_old_instrument(&sigdata->instrument[component[n].n], f);
- else
- m = it_read_instrument(&sigdata->instrument[component[n].n], f, (n + 1 < n_components) ? (int)(component[n+1].offset - component[n].offset) : 0);
-
- if (m) {- free(buffer);
- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- break;
-
- case IT_COMPONENT_PATTERN:
- if (it_read_pattern(&sigdata->pattern[component[n].n], f, buffer)) {- free(buffer);
- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- break;
-
- case IT_COMPONENT_SAMPLE:
- if (it_read_sample_header(&sigdata->sample[component[n].n], &sample_convert[component[n].n], &offset, f)) {- free(buffer);
- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- if (sigdata->sample[component[n].n].flags & IT_SAMPLE_EXISTS) {- short *sample;
-
- for (m = n + 1; m < n_components; m++)
- if (component[m].offset > offset)
- break;
- m--;
-
- sample = &component[m].sampfirst;
-
- while (*sample >= 0 && component[*sample].offset <= offset)
- sample = &component[*sample].sampnext;
-
- component[n].sampnext = *sample;
- *sample = n;
-
- component[n].offset = offset;
- }
- }
-
- m = component[n].sampfirst;
-
- while (m >= 0) {- if (dumbfile_seek(f, component[m].offset, DFS_SEEK_SET)) {- free(buffer);
- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- if (it_read_sample_data(&sigdata->sample[component[m].n], sample_convert[component[m].n], f)) {- free(buffer);
- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- m = component[m].sampnext;
- }
- }
-
- for ( n = 0; n < 10; n++ )
- {- if ( dumbfile_getc( f ) == 'X' )
- {- if ( dumbfile_getc( f ) == 'T' )
- {- if ( dumbfile_getc( f ) == 'P' )
- {- if ( dumbfile_getc( f ) == 'M' )
- {- break;
- }
- }
- }
- }
- }
-
- if ( !dumbfile_error( f ) && n < 10 )
- {- unsigned int mptx_id = (unsigned int)dumbfile_igetl( f );
- while ( !dumbfile_error( f ) && mptx_id != DUMB_ID('M','P','T','S') )- {- unsigned int size = dumbfile_igetw( f );
- switch (mptx_id)
- {- /* TODO: Add instrument extension readers */
-
- default:
- dumbfile_skip(f, size * sigdata->n_instruments);
- break;
- }
-
- mptx_id = (unsigned int)dumbfile_igetl( f );
- }
-
- mptx_id = (unsigned int)dumbfile_igetl( f );
- while ( !dumbfile_error(f) && dumbfile_pos(f) < dumbfile_get_size(f) )
- {- unsigned int size = dumbfile_igetw( f );
- switch (mptx_id)
- {- /* TODO: Add more song extension readers */
-
- case DUMB_ID('D','T','.','.'):- if ( size == 2 )
- sigdata->tempo = dumbfile_igetw( f );
- else if ( size == 4 )
- sigdata->tempo = (int)dumbfile_igetl( f );
- break;
-
- default:
- dumbfile_skip(f, size);
- break;
- }
- mptx_id = (unsigned int)dumbfile_igetl( f );
- }
- }
-
- free(buffer);
- free(component);
-
- _dumb_it_fix_invalid_orders(sigdata);
-
- return sigdata;
-}
-
-
-
-DUH *dumb_read_it_quick(DUMBFILE *f)
-{- sigdata_t *sigdata;
-
- DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
-
- sigdata = it_load_sigdata(f);
-
- if (!sigdata)
- return NULL;
-
- {- const char *tag[2][2];
- tag[0][0] = "TITLE";
- tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
- tag[1][0] = "FORMAT";
- tag[1][1] = "IT";
- return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
- }
-}
--- a/dumb/src/it/itread2.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * itread2.c - Function to read an Impulse Tracker / / \ \
- * module from an open file and do an | < / \_
- * initial run-through. | \/ /\ /
- * \_ / > /
- * Split off from itread.c by entheh. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-
-
-
-DUH *dumb_read_it(DUMBFILE *f)
-{- DUH *duh = dumb_read_it_quick(f);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/itrender.c
+++ /dev/null
@@ -1,6102 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * itrender.c - Code to render an Impulse Tracker / / \ \
- * module. | < / \_
- * | \/ /\ /
- * Written - painstakingly - by entheh. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <math.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "dumb.h"
-#include "internal/dumb.h"
-#include "internal/it.h"
-#include "internal/lpc.h"
-
-#include "internal/resampler.h"
-
-// Keep this disabled, as it's actually slower than the original C/integer version
-//
-//#ifdef __APPLE__
-//#include <TargetConditionals.h>
-//#if TARGET_CPU_ARM || TARGET_CPU_ARM64
-//#include <arm_neon.h>
-//#define FILTER_NEON
-//#endif
-//#endif
-
-// #define BIT_ARRAY_BULLSHIT
-
-static IT_PLAYING *new_playing()
-{- IT_PLAYING * r = (IT_PLAYING*) malloc(sizeof(*r));
- if (r)
- {- r->resampler.fir_resampler_ratio = 0.0;
- r->resampler.fir_resampler[0] = resampler_create();
- if ( !r->resampler.fir_resampler[0] ) {- free( r );
- return NULL;
- }
- r->resampler.fir_resampler[1] = resampler_create();
- if ( !r->resampler.fir_resampler[1] ) {- resampler_delete( r->resampler.fir_resampler[0] );
- free( r );
- return NULL;
- }
- }
- return r;
-}
-
-static void free_playing(IT_PLAYING * r)
-{- resampler_delete( r->resampler.fir_resampler[1] );
- resampler_delete( r->resampler.fir_resampler[0] );
- free( r );
-}
-
-static IT_PLAYING *dup_playing(IT_PLAYING *src, IT_CHANNEL *dstchannel, IT_CHANNEL *srcchannel)
-{- IT_PLAYING *dst;
-
- if (!src) return NULL;
-
- dst = malloc(sizeof(*dst));
- if (!dst) return NULL;
-
- dst->flags = src->flags;
- dst->resampling_quality = src->resampling_quality;
-
- ASSERT(src->channel);
- dst->channel = &dstchannel[src->channel - srcchannel];
- dst->sample = src->sample;
- dst->instrument = src->instrument;
- dst->env_instrument = src->env_instrument;
-
- dst->sampnum = src->sampnum;
- dst->instnum = src->instnum;
-
- dst->declick_stage = src->declick_stage;
-
- dst->float_volume[0] = src->float_volume[0];
- dst->float_volume[1] = src->float_volume[1];
-
- dst->ramp_volume[0] = src->ramp_volume[0];
- dst->ramp_volume[1] = src->ramp_volume[1];
-
- dst->ramp_delta[0] = src->ramp_delta[0];
- dst->ramp_delta[1] = src->ramp_delta[1];
-
- dst->channel_volume = src->channel_volume;
-
- dst->volume = src->volume;
- dst->pan = src->pan;
-
- dst->volume_offset = src->volume_offset;
- dst->panning_offset = src->panning_offset;
-
- dst->note = src->note;
-
- dst->enabled_envelopes = src->enabled_envelopes;
-
- dst->filter_cutoff = src->filter_cutoff;
- dst->filter_resonance = src->filter_resonance;
-
- dst->true_filter_cutoff = src->true_filter_cutoff;
- dst->true_filter_resonance = src->true_filter_resonance;
-
- dst->vibrato_speed = src->vibrato_speed;
- dst->vibrato_depth = src->vibrato_depth;
- dst->vibrato_n = src->vibrato_n;
- dst->vibrato_time = src->vibrato_time;
- dst->vibrato_waveform = src->vibrato_waveform;
-
- dst->tremolo_speed = src->tremolo_speed;
- dst->tremolo_depth = src->tremolo_depth;
- dst->tremolo_time = src->tremolo_time;
- dst->tremolo_waveform = src->tremolo_waveform;
-
- dst->panbrello_speed = src->panbrello_speed;
- dst->panbrello_depth = src->panbrello_depth;
- dst->panbrello_time = src->panbrello_time;
- dst->panbrello_waveform = src->panbrello_waveform;
- dst->panbrello_random = src->panbrello_random;
-
- dst->sample_vibrato_time = src->sample_vibrato_time;
- dst->sample_vibrato_waveform = src->sample_vibrato_waveform;
- dst->sample_vibrato_depth = src->sample_vibrato_depth;
-
- dst->slide = src->slide;
- dst->delta = src->delta;
- dst->finetune = src->finetune;
-
- dst->volume_envelope = src->volume_envelope;
- dst->pan_envelope = src->pan_envelope;
- dst->pitch_envelope = src->pitch_envelope;
-
- dst->fadeoutcount = src->fadeoutcount;
-
- dst->filter_state[0] = src->filter_state[0];
- dst->filter_state[1] = src->filter_state[1];
-
- dst->resampler = src->resampler;
- dst->resampler.pickup_data = dst;
- dst->resampler.fir_resampler_ratio = src->resampler.fir_resampler_ratio;
- dst->resampler.fir_resampler[0] = resampler_dup( src->resampler.fir_resampler[0] );
- if ( !dst->resampler.fir_resampler[0] ) {- free( dst );
- return NULL;
- }
- dst->resampler.fir_resampler[1] = resampler_dup( src->resampler.fir_resampler[1] );
- if ( !dst->resampler.fir_resampler[1] ) {- resampler_delete( dst->resampler.fir_resampler[0] );
- free( dst );
- return NULL;
- }
- dst->time_lost = src->time_lost;
-
- //dst->output = src->output;
-
- return dst;
-}
-
-
-
-static void dup_channel(IT_CHANNEL *dst, IT_CHANNEL *src)
-{- dst->flags = src->flags;
-
- dst->volume = src->volume;
- dst->volslide = src->volslide;
- dst->xm_volslide = src->xm_volslide;
- dst->panslide = src->panslide;
-
- dst->pan = src->pan;
- dst->truepan = src->truepan;
-
- dst->channelvolume = src->channelvolume;
- dst->channelvolslide = src->channelvolslide;
-
- dst->instrument = src->instrument;
- dst->note = src->note;
-
- dst->SFmacro = src->SFmacro;
-
- dst->filter_cutoff = src->filter_cutoff;
- dst->filter_resonance = src->filter_resonance;
-
- dst->key_off_count = src->key_off_count;
- dst->note_cut_count = src->note_cut_count;
- dst->note_delay_count = src->note_delay_count;
- dst->note_delay_entry = src->note_delay_entry;
-
- dst->new_note_action = src->new_note_action;
-
- dst->arpeggio_table = src->arpeggio_table;
- memcpy(dst->arpeggio_offsets, src->arpeggio_offsets, sizeof(dst->arpeggio_offsets));
- dst->retrig = src->retrig;
- dst->xm_retrig = src->xm_retrig;
- dst->retrig_tick = src->retrig_tick;
-
- dst->tremor_time = src->tremor_time;
-
- dst->vibrato_waveform = src->vibrato_waveform;
- dst->tremolo_waveform = src->tremolo_waveform;
- dst->panbrello_waveform = src->panbrello_waveform;
-
- dst->portamento = src->portamento;
- dst->toneporta = src->toneporta;
- dst->toneslide = src->toneslide;
- dst->toneslide_tick = src->toneslide_tick;
- dst->last_toneslide_tick = src->last_toneslide_tick;
- dst->ptm_toneslide = src->ptm_toneslide;
- dst->ptm_last_toneslide = src->ptm_last_toneslide;
- dst->okt_toneslide = src->okt_toneslide;
- dst->destnote = src->destnote;
-
- dst->glissando = src->glissando;
-
- dst->sample = src->sample;
- dst->truenote = src->truenote;
-
- dst->midi_state = src->midi_state;
-
- dst->lastvolslide = src->lastvolslide;
- dst->lastDKL = src->lastDKL;
- dst->lastEF = src->lastEF;
- dst->lastG = src->lastG;
- dst->lastHspeed = src->lastHspeed;
- dst->lastHdepth = src->lastHdepth;
- dst->lastRspeed = src->lastRspeed;
- dst->lastRdepth = src->lastRdepth;
- dst->lastYspeed = src->lastYspeed;
- dst->lastYdepth = src->lastYdepth;
- dst->lastI = src->lastI;
- dst->lastJ = src->lastJ;
- dst->lastN = src->lastN;
- dst->lastO = src->lastO;
- dst->high_offset = src->high_offset;
- dst->lastP = src->lastP;
- dst->lastQ = src->lastQ;
- dst->lastS = src->lastS;
- dst->pat_loop_row = src->pat_loop_row;
- dst->pat_loop_count = src->pat_loop_count;
- dst->pat_loop_end_row = src->pat_loop_end_row;
- dst->lastW = src->lastW;
-
- dst->xm_lastE1 = src->xm_lastE1;
- dst->xm_lastE2 = src->xm_lastE2;
- dst->xm_lastEA = src->xm_lastEA;
- dst->xm_lastEB = src->xm_lastEB;
- dst->xm_lastX1 = src->xm_lastX1;
- dst->xm_lastX2 = src->xm_lastX2;
-
- dst->inv_loop_delay = src->inv_loop_delay;
- dst->inv_loop_speed = src->inv_loop_speed;
- dst->inv_loop_offset = src->inv_loop_offset;
-
- dst->playing = dup_playing(src->playing, dst, src);
-
-#ifdef BIT_ARRAY_BULLSHIT
- dst->played_patjump = bit_array_dup(src->played_patjump);
- dst->played_patjump_order = src->played_patjump_order;
-#endif
-
- //dst->output = src->output;
-}
-
-
-
-/* Allocate the new callbacks first, then pass them to this function!
- * It will free them on failure.
- */
-static DUMB_IT_SIGRENDERER *dup_sigrenderer(DUMB_IT_SIGRENDERER *src, int n_channels, IT_CALLBACKS *callbacks)
-{- DUMB_IT_SIGRENDERER *dst;
- int i;
-
- if (!src) {- if (callbacks) free(callbacks);
- return NULL;
- }
-
- dst = malloc(sizeof(*dst));
- if (!dst) {- if (callbacks) free(callbacks);
- return NULL;
- }
-
- dst->sigdata = src->sigdata;
-
- dst->n_channels = n_channels;
-
- dst->resampling_quality = src->resampling_quality;
-
- dst->globalvolume = src->globalvolume;
- dst->globalvolslide = src->globalvolslide;
-
- dst->tempo = src->tempo;
- dst->temposlide = src->temposlide;
-
- for (i = 0; i < DUMB_IT_N_CHANNELS; i++)
- dup_channel(&dst->channel[i], &src->channel[i]);
-
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++)
- dst->playing[i] = dup_playing(src->playing[i], dst->channel, src->channel);
-
- dst->tick = src->tick;
- dst->speed = src->speed;
- dst->rowcount = src->rowcount;
-
- dst->order = src->order;
- dst->row = src->row;
- dst->processorder = src->processorder;
- dst->processrow = src->processrow;
- dst->breakrow = src->breakrow;
-
- dst->restart_position = src->restart_position;
-
- dst->n_rows = src->n_rows;
-
- dst->entry_start = src->entry_start;
- dst->entry = src->entry;
- dst->entry_end = src->entry_end;
-
- dst->time_left = src->time_left;
- dst->sub_time_left = src->sub_time_left;
-
- dst->ramp_style = src->ramp_style;
-
- dst->click_remover = NULL;
-
- dst->callbacks = callbacks;
-
-#ifdef BIT_ARRAY_BULLSHIT
- dst->played = bit_array_dup(src->played);
-
- dst->looped = src->looped;
- dst->time_played = src->time_played;
- dst->row_timekeeper = timekeeping_array_dup(src->row_timekeeper);
-#endif
-
- dst->gvz_time = src->gvz_time;
- dst->gvz_sub_time = src->gvz_sub_time;
-
- //dst->max_output = src->max_output;
-
- return dst;
-}
-
-
-
-static const IT_MIDI default_midi = {- /* unsigned char SFmacro[16][16]; */
- {- {0xF0, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}- },
- /* unsigned char SFmacrolen[16]; */
- {4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},- /* unsigned short SFmacroz[16]; */
- /* Bitfield; bit 0 set = z in first position */
- {- 0x0008, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
- 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
- },
- /* unsigned char Zmacro[128][16]; */
- {- {0xF0, 0xF0, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0xF0, 0xF0, 0x01, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0xF0, 0xF0, 0x01, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0xF0, 0xF0, 0x01, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0xF0, 0xF0, 0x01, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0xF0, 0xF0, 0x01, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0xF0, 0xF0, 0x01, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0xF0, 0xF0, 0x01, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0xF0, 0xF0, 0x01, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0xF0, 0xF0, 0x01, 0x48, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0xF0, 0xF0, 0x01, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0xF0, 0xF0, 0x01, 0x58, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0xF0, 0xF0, 0x01, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0xF0, 0xF0, 0x01, 0x68, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0xF0, 0xF0, 0x01, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0xF0, 0xF0, 0x01, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},-
- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},-
- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},- {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},-
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- /* unsigned char Zmacrolen[128]; */
- {- 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
- }
-};
-
-
-
-static void it_reset_filter_state(IT_FILTER_STATE *state)
-{- state->currsample = 0;
- state->prevsample = 0;
-}
-
-
-
-#define LOG10 2.30258509299
-
-/* IMPORTANT: This function expects one extra sample in 'src' so it can apply
- * click removal. It reads size samples, starting from src[0], and writes its
- * output starting at dst[pos]. The pos parameter is required for getting
- * click removal right.
- */
-
-static void it_filter_int(DUMB_CLICK_REMOVER *cr, IT_FILTER_STATE *state, sample_t *dst, long pos, sample_t *src, long size, int step, int sampfreq, int cutoff, int resonance)
-{- sample_t currsample = state->currsample;
- sample_t prevsample = state->prevsample;
-
- float a, b, c;
-
- long datasize;
-
- {- float inv_angle = (float)(sampfreq * pow(0.5, 0.25 + cutoff*(1.0/(24<<IT_ENVELOPE_SHIFT))) * (1.0/(2*3.14159265358979323846*110.0)));
- float loss = (float)exp(resonance*(-LOG10*1.2/128.0));
- float d, e;
-#if 0
- loss *= 2; // This is the mistake most players seem to make!
-#endif
-
-#if 1
- d = (1.0f - loss) / inv_angle;
- if (d > 2.0f) d = 2.0f;
- d = (loss - d) * inv_angle;
- e = inv_angle * inv_angle;
- a = 1.0f / (1.0f + d + e);
- c = -e * a;
- b = 1.0f - a - c;
-#else
- a = 1.0f / (inv_angle*inv_angle + inv_angle*loss + loss);
- c = -(inv_angle*inv_angle) * a;
- b = 1.0f - a - c;
-#endif
- }
-
- dst += pos * step;
- datasize = size * step;
-
-#define INT_FILTERS
-#ifdef INT_FILTERS
-#define MULSCA(a, b) ((int)((LONG_LONG)((a) << 4) * (b) >> 32))
-#define SCALEB 12
- {- int ai = (int)(a * (1 << (16+SCALEB)));
- int bi = (int)(b * (1 << (16+SCALEB)));
- int ci = (int)(c * (1 << (16+SCALEB)));
- int i;
-
- if (cr) {- sample_t startstep = MULSCA(src[0], ai) + MULSCA(currsample, bi) + MULSCA(prevsample, ci);
- dumb_record_click(cr, pos, startstep);
- }
-
- for (i = 0; i < datasize; i += step) {- {- sample_t newsample = MULSCA(src[i], ai) + MULSCA(currsample, bi) + MULSCA(prevsample, ci);
- prevsample = currsample;
- currsample = newsample;
- }
- dst[i] += currsample;
- }
-
- if (cr) {- sample_t endstep = MULSCA(src[datasize], ai) + MULSCA(currsample, bi) + MULSCA(prevsample, ci);
- dumb_record_click(cr, pos + size, -endstep);
- }
- }
-#else
-#error This version is broken - it does not use step, and state should contain floats for it
- if (cr) {- float startstep = src[0]*a + currsample*b + prevsample*c;
- dumb_record_click(cr, pos, (sample_t)startstep);
- }
-
- {- int i = size % 3;
- while (i > 0) {- {- float newsample = *src++*a + currsample*b + prevsample*c;
- prevsample = currsample;
- currsample = newsample;
- }
- *dst++ += (sample_t)currsample;
- i--;
- }
- i = size / 3;
- while (i > 0) {- float newsample;
- /* Gotta love unrolled loops! */
- *dst++ += (sample_t)(newsample = *src++*a + currsample*b + prevsample*c);
- *dst++ += (sample_t)(prevsample = *src++*a + newsample*b + currsample*c);
- *dst++ += (sample_t)(currsample = *src++*a + prevsample*b + newsample*c);
- i--;
- }
- }
-
- if (cr) {- float endstep = src[datasize]*a + currsample*b + prevsample*c;
- dumb_record_click(cr, pos + size, -(sample_t)endstep);
- }
-#endif
-
- state->currsample = currsample;
- state->prevsample = prevsample;
-}
-
-#if defined(_USE_SSE) && (defined(_M_IX86) || defined(__i386__) || defined(_M_X64) || defined(__amd64__))
-#include <xmmintrin.h>
-
-static void it_filter_sse(DUMB_CLICK_REMOVER *cr, IT_FILTER_STATE *state, sample_t *dst, long pos, sample_t *src, long size, int step, int sampfreq, int cutoff, int resonance)
-{- __m128 data, impulse;
- __m128 temp1, temp2;
-
- sample_t currsample = state->currsample;
- sample_t prevsample = state->prevsample;
-
- float imp[4];
-
- //profiler( filter_sse ); On ClawHammer Athlon64 3200+, ~12000 cycles, ~500 for that x87 setup code (as opposed to ~25500 for the original integer code)
-
- long datasize;
-
- {- float inv_angle = (float)(sampfreq * pow(0.5, 0.25 + cutoff*(1.0/(24<<IT_ENVELOPE_SHIFT))) * (1.0/(2*3.14159265358979323846*110.0)));
- float loss = (float)exp(resonance*(-LOG10*1.2/128.0));
- float d, e;
-#if 0
- loss *= 2; // This is the mistake most players seem to make!
-#endif
-
-#if 1
- d = (1.0f - loss) / inv_angle;
- if (d > 2.0f) d = 2.0f;
- d = (loss - d) * inv_angle;
- e = inv_angle * inv_angle;
- imp[0] = 1.0f / (1.0f + d + e);
- imp[2] = -e * imp[0];
- imp[1] = 1.0f - imp[0] - imp[2];
-#else
- imp[0] = 1.0f / (inv_angle*inv_angle + inv_angle*loss + loss);
- imp[2] = -(inv_angle*inv_angle) * imp[0];
- imp[1] = 1.0f - imp[0] - imp[2];
-#endif
- imp[3] = 0.0f;
- }
-
- dst += pos * step;
- datasize = size * step;
-
- {- int ai, bi, ci, i;
-
- if (cr) {- sample_t startstep;
- ai = (int)(imp[0] * (1 << (16+SCALEB)));
- bi = (int)(imp[1] * (1 << (16+SCALEB)));
- ci = (int)(imp[2] * (1 << (16+SCALEB)));
- startstep = MULSCA(src[0], ai) + MULSCA(currsample, bi) + MULSCA(prevsample, ci);
- dumb_record_click(cr, pos, startstep);
- }
-
- temp1 = _mm_setzero_ps();
- data = _mm_cvtsi32_ss( temp1, currsample );
- temp2 = _mm_cvtsi32_ss( temp1, prevsample );
- impulse = _mm_loadu_ps( (const float *) &imp );
- data = _mm_shuffle_ps( data, temp2, _MM_SHUFFLE(1, 0, 0, 1) );
-
- for (i = 0; i < datasize; i += step) {- temp1 = _mm_cvtsi32_ss( data, src [i] );
- temp1 = _mm_mul_ps( temp1, impulse );
- temp2 = _mm_movehl_ps( temp2, temp1 );
- temp1 = _mm_add_ps( temp1, temp2 );
- temp2 = temp1;
- temp2 = _mm_shuffle_ps( temp2, temp1, _MM_SHUFFLE(0, 0, 0, 1) );
- temp1 = _mm_add_ps( temp1, temp2 );
- temp1 = _mm_shuffle_ps( temp1, data, _MM_SHUFFLE(2, 1, 0, 0) );
- data = temp1;
- dst [i] += _mm_cvtss_si32( temp1 );
- }
-
- currsample = _mm_cvtss_si32( temp1 );
- temp1 = _mm_shuffle_ps( temp1, data, _MM_SHUFFLE(0, 0, 0, 2) );
- prevsample = _mm_cvtss_si32( temp1 );
-
- if (cr) {- sample_t endstep = MULSCA(src[datasize], ai) + MULSCA(currsample, bi) + MULSCA(prevsample, ci);
- dumb_record_click(cr, pos + size, -endstep);
- }
- }
-
- state->currsample = currsample;
- state->prevsample = prevsample;
-}
-#endif
-
-#ifdef FILTER_NEON
-static void it_filter_neon(DUMB_CLICK_REMOVER *cr, IT_FILTER_STATE *state, sample_t *dst, long pos, sample_t *src, long size, int step, int sampfreq, int cutoff, int resonance)
-{- float32x4_t data, impulse;
- float32x4_t temp1;
- float32x2_t temp2;
- float32_t temp3;
-
- sample_t currsample = state->currsample;
- sample_t prevsample = state->prevsample;
-
- float imp[4];
-
- //profiler( filter_sse ); On ClawHammer Athlon64 3200+, ~12000 cycles, ~500 for that x87 setup code (as opposed to ~25500 for the original integer code)
-
- long datasize;
-
- {- float inv_angle = (float)(sampfreq * pow(0.5, 0.25 + cutoff*(1.0/(24<<IT_ENVELOPE_SHIFT))) * (1.0/(2*3.14159265358979323846*110.0)));
- float loss = (float)exp(resonance*(-LOG10*1.2/128.0));
- float d, e;
-#if 0
- loss *= 2; // This is the mistake most players seem to make!
-#endif
-
-#if 1
- d = (1.0f - loss) / inv_angle;
- if (d > 2.0f) d = 2.0f;
- d = (loss - d) * inv_angle;
- e = inv_angle * inv_angle;
- imp[0] = 1.0f / (1.0f + d + e);
- imp[2] = -e * imp[0];
- imp[1] = 1.0f - imp[0] - imp[2];
-#else
- imp[0] = 1.0f / (inv_angle*inv_angle + inv_angle*loss + loss);
- imp[2] = -(inv_angle*inv_angle) * imp[0];
- imp[1] = 1.0f - imp[0] - imp[2];
-#endif
- imp[3] = 0.0f;
- }
-
- dst += pos * step;
- datasize = size * step;
-
- {- int ai, bi, ci, i;
-
- if (cr) {- sample_t startstep;
- ai = (int)(imp[0] * (1 << (16+SCALEB)));
- bi = (int)(imp[1] * (1 << (16+SCALEB)));
- ci = (int)(imp[2] * (1 << (16+SCALEB)));
- startstep = MULSCA(src[0], ai) + MULSCA(currsample, bi) + MULSCA(prevsample, ci);
- dumb_record_click(cr, pos, startstep);
- }
-
- data = vdupq_n_f32(0.0f);
- data = vsetq_lane_f32( currsample, data, 1 );
- data = vsetq_lane_f32( prevsample, data, 2 );
- impulse = vld1q_f32( (const float32_t *) &imp );
-
- for (i = 0; i < datasize; i += step) {- data = vsetq_lane_f32( src [i], data, 0 );
- temp1 = vmulq_f32(data, impulse);
- temp2 = vadd_f32(vget_high_f32(temp1), vget_low_f32(temp1));
- temp3 = vget_lane_f32(vpadd_f32(temp2, temp2), 0);
- data = vextq_f32(data, data, 3);
- data = vsetq_lane_f32(temp3, data, 1);
- dst [i] += temp3;
- }
-
- currsample = temp3;
- prevsample = vgetq_lane_f32(data, 2);
-
- if (cr) {- sample_t endstep = MULSCA(src[datasize], ai) + MULSCA(currsample, bi) + MULSCA(prevsample, ci);
- dumb_record_click(cr, pos + size, -endstep);
- }
- }
-
- state->currsample = currsample;
- state->prevsample = prevsample;
-}
-#endif
-
-#undef LOG10
-
-#ifdef _USE_SSE
-#if defined(_M_IX86) || defined(__i386__)
-
-#ifdef _MSC_VER
-#include <intrin.h>
-#elif defined(__clang__) || defined(__GNUC__)
-static inline void
-__cpuid(int *data, int selector)
-{-#if defined(__PIC__) && defined(__i386__)
- asm("xchgl %%ebx, %%esi; cpuid; xchgl %%ebx, %%esi"- : "=a" (data[0]),
- "=S" (data[1]),
- "=c" (data[2]),
- "=d" (data[3])
- : "0" (selector));
-#elif defined(__PIC__) && defined(__amd64__)
- asm("xchg{q} {%%}rbx, %q1; cpuid; xchg{q} {%%}rbx, %q1"- : "=a" (data[0]),
- "=&r" (data[1]),
- "=c" (data[2]),
- "=d" (data[3])
- : "0" (selector));
-#else
- asm("cpuid"- : "=a" (data[0]),
- "=b" (data[1]),
- "=c" (data[2]),
- "=d" (data[3])
- : "a"(selector));
-#endif
-}
-#else
-#define __cpuid(a,b) memset((a), 0, sizeof(int) * 4)
-#endif
-
-static int query_cpu_feature_sse() {- int buffer[4];
- __cpuid(buffer,1);
- if ((buffer[3]&(1<<25)) == 0) return 0;
- return 1;
-}
-
-static int _dumb_it_use_sse = 0;
-
-void _dumb_init_sse()
-{- static int initialized = 0;
- if (!initialized)
- {- _dumb_it_use_sse = query_cpu_feature_sse();
- initialized = 1;
- }
-}
-
-#elif defined(_M_X64) || defined(__amd64__)
-
-static const int _dumb_it_use_sse = 1;
-
-void _dumb_init_sse() { }-
-#else
-
-static const int _dumb_it_use_sse = 0;
-
-void _dumb_init_sse() { }-
-#endif
-#endif
-
-static void it_filter(DUMB_CLICK_REMOVER *cr, IT_FILTER_STATE *state, sample_t *dst, long pos, sample_t *src, long size, int step, int sampfreq, int cutoff, int resonance)
-{-#if defined(_USE_SSE) && (defined(_M_IX86) || defined(__i386__) || defined(_M_X64) || defined(__amd64__))
- _dumb_init_sse();
- if ( _dumb_it_use_sse ) it_filter_sse( cr, state, dst, pos, src, size, step, sampfreq, cutoff, resonance );
- else
-#endif
-#ifdef FILTER_NEON
- it_filter_neon( cr, state, dst, pos, src, size, step, sampfreq, cutoff, resonance );
-#else
- it_filter_int( cr, state, dst, pos, src, size, step, sampfreq, cutoff, resonance );
-#endif
-}
-
-
-
-static const signed char it_sine[256] = {- 0, 2, 3, 5, 6, 8, 9, 11, 12, 14, 16, 17, 19, 20, 22, 23,
- 24, 26, 27, 29, 30, 32, 33, 34, 36, 37, 38, 39, 41, 42, 43, 44,
- 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 56, 57, 58, 59,
- 59, 60, 60, 61, 61, 62, 62, 62, 63, 63, 63, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 63, 63, 63, 62, 62, 62, 61, 61, 60, 60,
- 59, 59, 58, 57, 56, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46,
- 45, 44, 43, 42, 41, 39, 38, 37, 36, 34, 33, 32, 30, 29, 27, 26,
- 24, 23, 22, 20, 19, 17, 16, 14, 12, 11, 9, 8, 6, 5, 3, 2,
- 0, -2, -3, -5, -6, -8, -9,-11,-12,-14,-16,-17,-19,-20,-22,-23,
- -24,-26,-27,-29,-30,-32,-33,-34,-36,-37,-38,-39,-41,-42,-43,-44,
- -45,-46,-47,-48,-49,-50,-51,-52,-53,-54,-55,-56,-56,-57,-58,-59,
- -59,-60,-60,-61,-61,-62,-62,-62,-63,-63,-63,-64,-64,-64,-64,-64,
- -64,-64,-64,-64,-64,-64,-63,-63,-63,-62,-62,-62,-61,-61,-60,-60,
- -59,-59,-58,-57,-56,-56,-55,-54,-53,-52,-51,-50,-49,-48,-47,-46,
- -45,-44,-43,-42,-41,-39,-38,-37,-36,-34,-33,-32,-30,-29,-27,-26,
- -24,-23,-22,-20,-19,-17,-16,-14,-12,-11, -9, -8, -6, -5, -3, -2
-};
-
-
-
-#if 1
-/** WARNING: use these! */
-/** JULIEN: Plus for XM compatibility it could be interesting to rename
- * it_sawtooth[] to it_rampdown[], and add an it_rampup[].
- * Also, still for XM compat', twood be good if it was possible to tell the
- * the player not to retrig' the waveform on a new instrument.
- * Both of these are only for completness though, as I don't think it would
- * be very noticeable ;)
- */
-/** ENTHEH: IT also has the 'don't retrig' thingy :) */
-static const signed char it_sawtooth[256] = {- 64, 63, 63, 62, 62, 61, 61, 60, 60, 59, 59, 58, 58, 57, 57, 56,
- 56, 55, 55, 54, 54, 53, 53, 52, 52, 51, 51, 50, 50, 49, 49, 48,
- 48, 47, 47, 46, 46, 45, 45, 44, 44, 43, 43, 42, 42, 41, 41, 40,
- 40, 39, 39, 38, 38, 37, 37, 36, 36, 35, 35, 34, 34, 33, 33, 32,
- 32, 31, 31, 30, 30, 29, 29, 28, 28, 27, 27, 26, 26, 25, 25, 24,
- 24, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 18, 18, 17, 17, 16,
- 16, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 8,
- 8, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 0,
- 0, -1, -1, -2, -2, -3, -3, -4, -4, -5, -5, -6, -6, -7, -7, -8,
- -8, -9, -9,-10,-10,-11,-11,-12,-12,-13,-13,-14,-14,-15,-15,-16,
- -16,-17,-17,-18,-18,-19,-19,-20,-20,-21,-21,-22,-22,-23,-23,-24,
- -24,-25,-25,-26,-26,-27,-27,-28,-28,-29,-29,-30,-30,-31,-31,-32,
- -32,-33,-33,-34,-34,-35,-35,-36,-36,-37,-37,-38,-38,-39,-39,-40,
- -40,-41,-41,-42,-42,-43,-43,-44,-44,-45,-45,-46,-46,-47,-47,-48,
- -48,-49,-49,-50,-50,-51,-51,-52,-52,-53,-53,-54,-54,-55,-55,-56,
- -56,-57,-57,-58,-58,-59,-59,-60,-60,-61,-61,-62,-62,-63,-63,-64
-};
-
-static const signed char it_squarewave[256] = {- 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-static const signed char it_xm_ramp[256] = {- 0, -1, -1, -2, -2, -3, -3, -4, -4, -5, -5, -6, -6, -7, -7, -8,
- -8, -9, -9,-10,-10,-11,-11,-12,-12,-13,-13,-14,-14,-15,-15,-16,
- -16,-17,-17,-18,-18,-19,-19,-20,-20,-21,-21,-22,-22,-23,-23,-24,
- -24,-25,-25,-26,-26,-27,-27,-28,-28,-29,-29,-30,-30,-31,-31,-32,
- -32,-33,-33,-34,-34,-35,-35,-36,-36,-37,-37,-38,-38,-39,-39,-40,
- -40,-41,-41,-42,-42,-43,-43,-44,-44,-45,-45,-46,-46,-47,-47,-48,
- -48,-49,-49,-50,-50,-51,-51,-52,-52,-53,-53,-54,-54,-55,-55,-56,
- -56,-57,-57,-58,-58,-59,-59,-60,-60,-61,-61,-62,-62,-63,-63,-64,
- 64, 63, 63, 62, 62, 61, 61, 60, 60, 59, 59, 58, 58, 57, 57, 56,
- 56, 55, 55, 54, 54, 53, 53, 52, 52, 51, 51, 50, 50, 49, 49, 48,
- 48, 47, 47, 46, 46, 45, 45, 44, 44, 43, 43, 42, 42, 41, 41, 40,
- 40, 39, 39, 38, 38, 37, 37, 36, 36, 35, 35, 34, 34, 33, 33, 32,
- 32, 31, 31, 30, 30, 29, 29, 28, 28, 27, 27, 26, 26, 25, 25, 24,
- 24, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 18, 18, 17, 17, 16,
- 16, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 8,
- 8, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 0
-};
-
-static const signed char it_xm_squarewave[256] = {- 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
- 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
- -64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,
- -64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,
- -64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,
- -64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,
- -64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,
- -64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,
- -64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,
- -64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64
-};
-
-#endif
-
-
-
-static void reset_tick_counts(DUMB_IT_SIGRENDERER *sigrenderer)
-{- int i;
-
- for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {- IT_CHANNEL *channel = &sigrenderer->channel[i];
- channel->key_off_count = 0;
- channel->note_cut_count = 0;
- channel->note_delay_count = 0;
- }
-}
-
-
-
-static const unsigned char arpeggio_mod[32] = {0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1};-static const unsigned char arpeggio_xm[32] = {0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2};-static const unsigned char arpeggio_okt_3[32] = {1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 0};-static const unsigned char arpeggio_okt_4[32] = {0, 2, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1};-static const unsigned char arpeggio_okt_5[32] = {2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2};-
-
-
-static void reset_channel_effects(IT_CHANNEL *channel)
-{- channel->volslide = 0;
- channel->xm_volslide = 0;
- channel->panslide = 0;
- channel->channelvolslide = 0;
- channel->arpeggio_table = (const unsigned char *) &arpeggio_mod;
- memset(channel->arpeggio_offsets, 0, sizeof(channel->arpeggio_offsets));
- channel->retrig = 0;
- if (channel->xm_retrig) {- channel->xm_retrig = 0;
- channel->retrig_tick = 0;
- }
- channel->tremor_time &= 127;
- channel->portamento = 0;
- channel->toneporta = 0;
- if (channel->ptm_toneslide) {- channel->ptm_last_toneslide = channel->ptm_toneslide;
- channel->last_toneslide_tick = channel->toneslide_tick;
- } else
- channel->ptm_last_toneslide = 0;
- channel->ptm_toneslide = 0;
- channel->toneslide_tick = 0;
- channel->okt_toneslide = 0;
- if (channel->playing) {- channel->playing->vibrato_n = 0;
- channel->playing->tremolo_speed = 0;
- channel->playing->tremolo_depth = 0;
- channel->playing->panbrello_speed = 0;
- }
-}
-
-static void reset_effects(DUMB_IT_SIGRENDERER *sigrenderer)
-{- int i;
-
- sigrenderer->globalvolslide = 0;
- sigrenderer->temposlide = 0;
-
- for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {- reset_channel_effects(&sigrenderer->channel[i]);
- }
-}
-
-
-
-static void update_tremor(IT_CHANNEL *channel)
-{- if ((channel->tremor_time & 128) && channel->playing) {- if (channel->tremor_time == 128)
- channel->tremor_time = (channel->lastI >> 4) | 192;
- else if (channel->tremor_time == 192)
- channel->tremor_time = (channel->lastI & 15) | 128;
- else
- channel->tremor_time--;
- }
-}
-
-
-
-static void it_pickup_loop(DUMB_RESAMPLER *resampler, void *data)
-{- resampler->pos -= resampler->end - resampler->start;
- ((IT_PLAYING *)data)->time_lost += resampler->end - resampler->start;
-}
-
-
-
-static void it_pickup_pingpong_loop(DUMB_RESAMPLER *resampler, void *data)
-{- if (resampler->dir < 0) {- resampler->pos = (resampler->start << 1) - 1 - resampler->pos;
- resampler->subpos ^= 65535;
- resampler->dir = 1;
- ((IT_PLAYING *)data)->time_lost += (resampler->end - resampler->start) << 1;
- } else {- resampler->pos = (resampler->end << 1) - 1 - resampler->pos;
- resampler->subpos ^= 65535;
- resampler->dir = -1;
- }
-}
-
-
-
-static void it_pickup_stop_at_end(DUMB_RESAMPLER *resampler, void *data)
-{- (void)data;
-
- if (resampler->dir < 0) {- resampler->pos = (resampler->start << 1) - 1 - resampler->pos;
- resampler->subpos ^= 65535;
- /* By rights, time_lost would be updated here. However, there is no
- * need at this point; it will not be used.
- *
- * ((IT_PLAYING *)data)->time_lost += (resampler->src_end - resampler->src_start) << 1;
- */
- resampler->dir = 1;
- } else
- resampler->dir = 0;
-}
-
-
-
-static void it_pickup_stop_after_reverse(DUMB_RESAMPLER *resampler, void *data)
-{- (void)data;
-
- resampler->dir = 0;
-}
-
-
-
-static void it_playing_update_resamplers(IT_PLAYING *playing)
-{- if ((playing->sample->flags & IT_SAMPLE_SUS_LOOP) && !(playing->flags & IT_PLAYING_SUSTAINOFF)) {- playing->resampler.start = playing->sample->sus_loop_start;
- playing->resampler.end = playing->sample->sus_loop_end;
- if (playing->resampler.start == playing->resampler.end)
- playing->resampler.pickup = &it_pickup_stop_at_end;
- else if (playing->sample->flags & IT_SAMPLE_PINGPONG_SUS_LOOP)
- playing->resampler.pickup = &it_pickup_pingpong_loop;
- else
- playing->resampler.pickup = &it_pickup_loop;
- } else if (playing->sample->flags & IT_SAMPLE_LOOP) {- playing->resampler.start = playing->sample->loop_start;
- playing->resampler.end = playing->sample->loop_end;
- if (playing->resampler.start == playing->resampler.end)
- playing->resampler.pickup = &it_pickup_stop_at_end;
- else if (playing->sample->flags & IT_SAMPLE_PINGPONG_LOOP)
- playing->resampler.pickup = &it_pickup_pingpong_loop;
- else
- playing->resampler.pickup = &it_pickup_loop;
- } else if (playing->flags & IT_PLAYING_REVERSE) {- playing->resampler.start = 0;
- playing->resampler.end = playing->sample->length;
- playing->resampler.dir = -1;
- playing->resampler.pickup = &it_pickup_stop_after_reverse;
- } else {- if (playing->sample->flags & IT_SAMPLE_SUS_LOOP)
- playing->resampler.start = playing->sample->sus_loop_start;
- else
- playing->resampler.start = 0;
- playing->resampler.end = playing->sample->length;
- playing->resampler.pickup = &it_pickup_stop_at_end;
- }
- ASSERT(playing->resampler.pickup_data == playing);
-}
-
-
-
-/* This should be called whenever the sample or sample position changes. */
-static void it_playing_reset_resamplers(IT_PLAYING *playing, long pos)
-{- int bits = playing->sample->flags & IT_SAMPLE_16BIT ? 16 : 8;
- int quality = playing->resampling_quality;
- int channels = playing->sample->flags & IT_SAMPLE_STEREO ? 2 : 1;
- if (playing->sample->max_resampling_quality >= 0 && quality > playing->sample->max_resampling_quality)
- quality = playing->sample->max_resampling_quality;
- dumb_reset_resampler_n(bits, &playing->resampler, playing->sample->data, channels, pos, 0, 0, quality);
- playing->resampler.pickup_data = playing;
- playing->time_lost = 0;
- playing->flags &= ~IT_PLAYING_DEAD;
- it_playing_update_resamplers(playing);
-}
-
-static void it_retrigger_note(DUMB_IT_SIGRENDERER *sigrenderer, IT_CHANNEL *channel);
-
-/* Should we only be retriggering short samples on XM? */
-
-static void update_retrig(DUMB_IT_SIGRENDERER *sigrenderer, IT_CHANNEL *channel)
-{- if (channel->xm_retrig) {- channel->retrig_tick--;
- if (channel->retrig_tick <= 0) {- if (channel->playing) {- it_playing_reset_resamplers(channel->playing, 0);
- channel->playing->declick_stage = 0;
- } else if (sigrenderer->sigdata->flags & IT_WAS_AN_XM) it_retrigger_note(sigrenderer, channel);
- channel->retrig_tick = channel->xm_retrig;
- }
- } else if (channel->retrig & 0x0F) {- channel->retrig_tick--;
- if (channel->retrig_tick <= 0) {- if (channel->retrig < 0x10) {- } else if (channel->retrig < 0x20) {- channel->volume--;
- if (channel->volume > 64) channel->volume = 0;
- } else if (channel->retrig < 0x30) {- channel->volume -= 2;
- if (channel->volume > 64) channel->volume = 0;
- } else if (channel->retrig < 0x40) {- channel->volume -= 4;
- if (channel->volume > 64) channel->volume = 0;
- } else if (channel->retrig < 0x50) {- channel->volume -= 8;
- if (channel->volume > 64) channel->volume = 0;
- } else if (channel->retrig < 0x60) {- channel->volume -= 16;
- if (channel->volume > 64) channel->volume = 0;
- } else if (channel->retrig < 0x70) {- channel->volume <<= 1;
- channel->volume /= 3;
- } else if (channel->retrig < 0x80) {- channel->volume >>= 1;
- } else if (channel->retrig < 0x90) {- } else if (channel->retrig < 0xA0) {- channel->volume++;
- if (channel->volume > 64) channel->volume = 64;
- } else if (channel->retrig < 0xB0) {- channel->volume += 2;
- if (channel->volume > 64) channel->volume = 64;
- } else if (channel->retrig < 0xC0) {- channel->volume += 4;
- if (channel->volume > 64) channel->volume = 64;
- } else if (channel->retrig < 0xD0) {- channel->volume += 8;
- if (channel->volume > 64) channel->volume = 64;
- } else if (channel->retrig < 0xE0) {- channel->volume += 16;
- if (channel->volume > 64) channel->volume = 64;
- } else if (channel->retrig < 0xF0) {- channel->volume *= 3;
- channel->volume >>= 1;
- if (channel->volume > 64) channel->volume = 64;
- } else {- channel->volume <<= 1;
- if (channel->volume > 64) channel->volume = 64;
- }
- if (channel->playing) {- it_playing_reset_resamplers(channel->playing, 0);
- channel->playing->declick_stage = 0;
- } else if (sigrenderer->sigdata->flags & IT_WAS_AN_XM) it_retrigger_note(sigrenderer, channel);
- channel->retrig_tick = channel->retrig & 0x0F;
- }
- }
-}
-
-
-static void update_smooth_effects_playing(IT_PLAYING *playing)
-{- playing->vibrato_time += playing->vibrato_n *
- (playing->vibrato_speed << 2);
- playing->tremolo_time += playing->tremolo_speed << 2;
- playing->panbrello_time += playing->panbrello_speed;
- if (playing->panbrello_waveform == 3)
- playing->panbrello_random = (rand() % 129) - 64;
-}
-
-static void update_smooth_effects(DUMB_IT_SIGRENDERER *sigrenderer)
-{- int i;
-
- for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {- IT_CHANNEL *channel = &sigrenderer->channel[i];
- IT_PLAYING *playing = channel->playing;
-
- if (playing) {- update_smooth_effects_playing(playing);
- }
- }
-
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {- IT_PLAYING *playing = sigrenderer->playing[i];
-
- if (playing) {- update_smooth_effects_playing(playing);
- }
- }
-}
-
-
-static const unsigned char pt_tab_invloop[16] =
-{- 0x00, 0x05, 0x06, 0x07, 0x08, 0x0A, 0x0B, 0x0D,
- 0x0F, 0x13, 0x16, 0x1A, 0x20, 0x2B, 0x40, 0x80
-};
-
-static void update_invert_loop(IT_CHANNEL *channel, IT_SAMPLE *sample)
-{- channel->inv_loop_delay += pt_tab_invloop[channel->inv_loop_speed];
- if (channel->inv_loop_delay >= 0x80)
- {- channel->inv_loop_delay = 0;
-
- if (sample && ((sample->flags & (IT_SAMPLE_EXISTS | IT_SAMPLE_LOOP)) == (IT_SAMPLE_EXISTS | IT_SAMPLE_LOOP)) && !(sample->flags & (IT_SAMPLE_STEREO | IT_SAMPLE_16BIT)))
- {- if (sample->loop_end - sample->loop_start >= 4)
- {- channel->inv_loop_offset++;
- if (channel->inv_loop_offset >= (sample->loop_end - sample->loop_start)) channel->inv_loop_offset = 0;
-
- ((char *)sample->data)[sample->loop_start + channel->inv_loop_offset] ^= 0xFF;
- }
- }
- }
-}
-
-
-static void update_playing_effects(IT_PLAYING *playing)
-{- IT_CHANNEL *channel = playing->channel;
-
- if (channel->channelvolslide) {- playing->channel_volume = channel->channelvolume;
- }
-
- if (channel->okt_toneslide) {- if (channel->okt_toneslide--) {- playing->note += channel->toneslide;
- if (playing->note >= 120) {- if (channel->toneslide < 0) playing->note = 0;
- else playing->note = 119;
- }
- }
- } else if (channel->ptm_toneslide) {- if (--channel->toneslide_tick == 0) {- channel->toneslide_tick = channel->ptm_toneslide;
- if (playing) {- playing->note += channel->toneslide;
- if (playing->note >= 120) {- if (channel->toneslide < 0) playing->note = 0;
- else playing->note = 119;
- }
- if (channel->playing == playing) {- channel->note = channel->truenote = playing->note;
- }
- if (channel->toneslide_retrig) {- it_playing_reset_resamplers(playing, 0);
- playing->declick_stage = 0;
- }
- }
- }
- }
-}
-
-
-static void update_effects(DUMB_IT_SIGRENDERER *sigrenderer)
-{- int i;
-
- if (sigrenderer->globalvolslide) {- sigrenderer->globalvolume += sigrenderer->globalvolslide;
- if (sigrenderer->globalvolume > 128) {- if (sigrenderer->globalvolslide >= 0)
- sigrenderer->globalvolume = 128;
- else
- sigrenderer->globalvolume = 0;
- }
- }
-
- if (sigrenderer->temposlide) {- sigrenderer->tempo += sigrenderer->temposlide;
- if (sigrenderer->tempo < 32) {- if (sigrenderer->temposlide >= 0)
- sigrenderer->tempo = 255;
- else
- sigrenderer->tempo = 32;
- }
- }
-
- for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {- IT_CHANNEL *channel = &sigrenderer->channel[i];
- IT_PLAYING *playing = channel->playing;
-
- if (channel->xm_volslide) {- channel->volume += channel->xm_volslide;
- if (channel->volume > 64) {- if (channel->xm_volslide >= 0)
- channel->volume = 64;
- else
- channel->volume = 0;
- }
- }
-
- if (channel->volslide) {- int clip = (sigrenderer->sigdata->flags & IT_WAS_AN_S3M) ? 63 : 64;
- channel->volume += channel->volslide;
- if (channel->volume > clip) {- if (channel->volslide >= 0)
- channel->volume = clip;
- else
- channel->volume = 0;
- }
- }
-
- if (channel->panslide) {- if (sigrenderer->sigdata->flags & IT_WAS_AN_XM) {- if (IT_IS_SURROUND(channel->pan))
- {- channel->pan = 32;
- channel->truepan = 32 + 128 * 64;
- }
- if (channel->panslide == -128)
- channel->truepan = 32;
- else
- channel->truepan = MID(32, channel->truepan + channel->panslide*64, 32+255*64);
- } else {- if (IT_IS_SURROUND(channel->pan))
- {- channel->pan = 32;
- }
- channel->pan += channel->panslide;
- if (channel->pan > 64) {- if (channel->panslide >= 0)
- channel->pan = 64;
- else
- channel->pan = 0;
- }
- channel->truepan = channel->pan << IT_ENVELOPE_SHIFT;
- }
- }
-
- if (channel->channelvolslide) {- channel->channelvolume += channel->channelvolslide;
- if (channel->channelvolume > 64) {- if (channel->channelvolslide >= 0)
- channel->channelvolume = 64;
- else
- channel->channelvolume = 0;
- }
- }
-
- update_tremor(channel);
-
- update_retrig(sigrenderer, channel);
-
- if (channel->inv_loop_speed) update_invert_loop(channel, playing ? playing->sample : NULL);
-
- if (playing) {- playing->slide += channel->portamento;
-
- if (sigrenderer->sigdata->flags & IT_LINEAR_SLIDES) {- if (channel->toneporta && channel->destnote < 120) {- int currpitch = ((playing->note - 60) << 8) + playing->slide;
- int destpitch = (channel->destnote - 60) << 8;
- if (currpitch > destpitch) {- currpitch -= channel->toneporta;
- if (currpitch < destpitch) {- currpitch = destpitch;
- channel->destnote = IT_NOTE_OFF;
- }
- } else if (currpitch < destpitch) {- currpitch += channel->toneporta;
- if (currpitch > destpitch) {- currpitch = destpitch;
- channel->destnote = IT_NOTE_OFF;
- }
- }
- playing->slide = currpitch - ((playing->note - 60) << 8);
- }
- } else {- if (channel->toneporta && channel->destnote < 120) {- float amiga_multiplier = playing->sample->C5_speed * (1.0f / AMIGA_DIVISOR);
-
- float deltanote = (float)pow(DUMB_SEMITONE_BASE, 60 - playing->note);
- /* deltanote is 1.0 for C-5, 0.5 for C-6, etc. */
-
- float deltaslid = deltanote - playing->slide * amiga_multiplier;
-
- float destdelta = (float)pow(DUMB_SEMITONE_BASE, 60 - channel->destnote);
- if (deltaslid < destdelta) {- playing->slide -= channel->toneporta;
- deltaslid = deltanote - playing->slide * amiga_multiplier;
- if (deltaslid > destdelta) {- playing->note = channel->destnote;
- playing->slide = 0;
- channel->destnote = IT_NOTE_OFF;
- }
- } else {- playing->slide += channel->toneporta;
- deltaslid = deltanote - playing->slide * amiga_multiplier;
- if (deltaslid < destdelta) {- playing->note = channel->destnote;
- playing->slide = 0;
- channel->destnote = IT_NOTE_OFF;
- }
- }
- }
- }
-
- update_playing_effects(playing);
- }
- }
-
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {- IT_PLAYING *playing = sigrenderer->playing[i];
- if (playing) update_playing_effects(playing);
- }
-
- update_smooth_effects(sigrenderer);
-}
-
-
-static void it_note_off(IT_PLAYING *playing);
-
-// This function should be renamed; it doesn't do the 'Update Pattern Variables' operation ittech.txt describes
-/* Returns 1 if a pattern loop is happening. */
-static int update_pattern_variables(DUMB_IT_SIGRENDERER *sigrenderer, IT_ENTRY *entry)
-{- IT_CHANNEL *channel = &sigrenderer->channel[(int)entry->channel];
-
- if (entry->mask & IT_ENTRY_EFFECT) {- switch (entry->effect) {- case IT_JUMP_TO_ORDER:
- /* XXX jump and break in same row */
- if ( ( ( sigrenderer->processrow | 0xC00 ) == 0xFFFE ) &&
- ! ( sigrenderer->processrow & 0x800 ) ) {- sigrenderer->processrow = 0xFFFE & ~0xC00;
- } else {- sigrenderer->breakrow = 0;
- sigrenderer->processrow = 0xFFFE & ~0x400;
- }
- sigrenderer->processorder = entry->effectvalue - 1;
- break;
-
- case IT_S:
- {- unsigned char effectvalue = entry->effectvalue;
- if (sigrenderer->sigdata->flags & IT_WAS_AN_S3M) {- if (effectvalue == 0)
- effectvalue = channel->lastDKL;
- channel->lastDKL = effectvalue;
- } else {- if (effectvalue == 0)
- effectvalue = channel->lastS;
- }
- channel->lastS = effectvalue;
- switch (effectvalue >> 4) {- case IT_S_PATTERN_LOOP:
- {- unsigned char v = effectvalue & 15;
- if (v == 0) {-#ifdef BIT_ARRAY_BULLSHIT
- if (!channel->played_patjump)
- channel->played_patjump = bit_array_create(256);
- else {- if ( channel->played_patjump_order != 0xFFFE && channel->played_patjump_order != sigrenderer->order )
- bit_array_merge(sigrenderer->played, channel->played_patjump, channel->played_patjump_order * 256);
- //if (channel->played_patjump_order != sigrenderer->order)
- bit_array_reset(channel->played_patjump);
- }
- channel->played_patjump_order = sigrenderer->order;
-#endif
- channel->pat_loop_row = sigrenderer->processrow;
- } else {- if (channel->pat_loop_count == 0) {-#ifdef BIT_ARRAY_BULLSHIT
- /* wft, uninitialized and no start marker yet... */
- if (channel->played_patjump_order == 0xFFFE) {- int n;
- bit_array_destroy(channel->played_patjump);
- channel->played_patjump = bit_array_create(256);
- for (n = channel->pat_loop_row; n <= sigrenderer->row; n++)
- bit_array_clear(sigrenderer->played, sigrenderer->order * 256 + n);
- channel->played_patjump_order = sigrenderer->order;
- } else if (channel->played_patjump_order == sigrenderer->order) {- bit_array_set(channel->played_patjump, sigrenderer->row);
- bit_array_mask(sigrenderer->played, channel->played_patjump, channel->played_patjump_order * 256);
- //bit_array_reset(channel->played_patjump);
- }
-#endif
- channel->pat_loop_count = v;
- sigrenderer->breakrow = channel->pat_loop_row;
- if ((sigrenderer->sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_MOD)) == IT_WAS_AN_XM) {- /* For XM files, if a loop occurs by itself, keep breakrow set for when the pattern ends - fun bug in FT2! */
- if ((sigrenderer->processrow|0xC00) < 0xFFFE) {- /* Infinite pattern loops are possible, so we check whether the pattern loop we're hitting now is earlier than the last one we hit. */
- if (sigrenderer->processrow < channel->pat_loop_end_row)
- sigrenderer->processorder = 0xFFFE; /* suspect infinite loop, so trigger loop callback */
- else
- sigrenderer->processorder = 0xFFFF; /* don't trigger loop callback */
- channel->pat_loop_end_row = sigrenderer->processrow;
- sigrenderer->processrow = 0xFFFF; /* special case: don't reset breakrow or pat_loop_end_row */
- }
- } else {- /* IT files do this regardless of other flow control effects seen here. */
- sigrenderer->processorder = 0xFFFF; /* special case: don't trigger loop callback */
- sigrenderer->processrow = 0xFFFE;
- }
- return 1;
- } else if (--channel->pat_loop_count) {-#ifdef BIT_ARRAY_BULLSHIT
- if (channel->played_patjump_order == sigrenderer->order) {- bit_array_set(channel->played_patjump, sigrenderer->row);
- bit_array_mask(sigrenderer->played, channel->played_patjump, channel->played_patjump_order * 256);
- //bit_array_reset(channel->played_patjump);
- }
-#endif
- sigrenderer->breakrow = channel->pat_loop_row;
- if ((sigrenderer->sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_MOD)) == IT_WAS_AN_XM) {- /* For XM files, if a loop occurs by itself, keep breakrow set for when the pattern ends - fun bug in FT2! */
- if ((sigrenderer->processrow|0xC00) < 0xFFFE) {- /* Infinite pattern loops are possible, so we check whether the pattern loop we're hitting now is earlier than the last one we hit. */
- if (sigrenderer->processrow < channel->pat_loop_end_row)
- sigrenderer->processorder = 0xFFFE; /* suspect infinite loop, so trigger loop callback */
- else
- sigrenderer->processorder = 0xFFFF; /* don't trigger loop callback */
- channel->pat_loop_end_row = sigrenderer->processrow;
- sigrenderer->processrow = 0xFFFF; /* special case: don't reset breakrow or pat_loop_end_row */
- }
- } else {- /* IT files do this regardless of other flow control effects seen here. */
- sigrenderer->processorder = 0xFFFF; /* special case: don't trigger loop callback */
- sigrenderer->processrow = 0xFFFE;
- }
- return 1;
- } else if ((sigrenderer->sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_MOD)) == IT_WAS_AN_XM) {- channel->pat_loop_end_row = 0;
- // TODO
- /* Findings:
- - If a pattern loop completes successfully, and then the pattern terminates, then the next pattern will start on the row corresponding to the E60.
- - If a pattern loop doesn't do any loops, and then the pattern terminates, then the next pattern will start on the first row.
- - If a break appears to the left of the pattern loop, it jumps into the relevant position in the next pattern, and that's it.
- - If a break appears to the right of the pattern loop, it jumps to the start of the next pattern, and that's it.
- - If we jump, then effect a loop using an old E60, and then the pattern ends, the next pattern starts on the row corresponding to the E60.
- - Theory: breakrow is not cleared when it's a pattern loop effect!
- */
- if ((sigrenderer->processrow | 0xC00) < 0xFFFE) // I have no idea if this is correct or not - FT2 is so weird :(
- sigrenderer->breakrow = channel->pat_loop_row; /* emulate bug in FT2 */
- } else
- channel->pat_loop_row = sigrenderer->processrow + 1;
-#ifdef BIT_ARRAY_BULLSHIT
- /*channel->played_patjump_order |= 0x8000;*/
- if (channel->played_patjump_order == sigrenderer->order) {- bit_array_destroy(channel->played_patjump);
- channel->played_patjump = 0;
- channel->played_patjump_order = 0xFFFE;
- }
- bit_array_clear(sigrenderer->played, sigrenderer->order * 256 + sigrenderer->row);
-#endif
- }
- }
- break;
- case IT_S_PATTERN_DELAY:
- sigrenderer->rowcount = 1 + (effectvalue & 15);
- break;
- }
- }
- }
- }
-
- return 0;
-}
-
-
-
-/* This function guarantees that channel->sample will always be valid if it
- * is nonzero. In other words, to check if it is valid, simply check if it is
- * nonzero.
- */
-static void instrument_to_sample(DUMB_IT_SIGDATA *sigdata, IT_CHANNEL *channel)
-{- if (sigdata->flags & IT_USE_INSTRUMENTS) {- if (channel->instrument >= 1 && channel->instrument <= sigdata->n_instruments) {- if (channel->note < 120) {- channel->sample = sigdata->instrument[channel->instrument-1].map_sample[channel->note];
- channel->truenote = sigdata->instrument[channel->instrument-1].map_note[channel->note];
- } else
- channel->sample = 0;
- } else
- channel->sample = 0;
- } else {- channel->sample = channel->instrument;
- channel->truenote = channel->note;
- }
- if (!(channel->sample >= 1 && channel->sample <= sigdata->n_samples && (sigdata->sample[channel->sample-1].flags & IT_SAMPLE_EXISTS) && sigdata->sample[channel->sample-1].C5_speed))
- channel->sample = 0;
-}
-
-
-
-static void fix_sample_looping(IT_PLAYING *playing)
-{- if ((playing->sample->flags & (IT_SAMPLE_LOOP | IT_SAMPLE_SUS_LOOP)) ==
- (IT_SAMPLE_LOOP | IT_SAMPLE_SUS_LOOP)) {- if (playing->resampler.dir < 0) {- playing->resampler.pos = (playing->sample->sus_loop_end << 1) - 1 - playing->resampler.pos;
- playing->resampler.subpos ^= 65535;
- playing->resampler.dir = 1;
- }
-
- playing->resampler.pos += playing->time_lost;
- // XXX what
- playing->time_lost = 0;
- }
-}
-
-
-
-static void it_compatible_gxx_retrigger(DUMB_IT_SIGDATA *sigdata, IT_CHANNEL *channel)
-{- int flags = 0;
- if (channel->sample) {- if (sigdata->flags & IT_USE_INSTRUMENTS) {- if (!(channel->playing->flags & IT_PLAYING_SUSTAINOFF)) {- if (channel->playing->env_instrument->volume_envelope.flags & IT_ENVELOPE_CARRY)
- flags |= 1;
- if (channel->playing->env_instrument->pan_envelope.flags & IT_ENVELOPE_CARRY)
- flags |= 2;
- if (channel->playing->env_instrument->pitch_envelope.flags & IT_ENVELOPE_CARRY)
- flags |= 4;
- }
- }
- }
- if (!(flags & 1)) {- channel->playing->volume_envelope.next_node = 0;
- channel->playing->volume_envelope.tick = 0;
- }
- if (!(flags & 2)) {- channel->playing->pan_envelope.next_node = 0;
- channel->playing->pan_envelope.tick = 0;
- }
- if (!(flags & 4)) {- channel->playing->pitch_envelope.next_node = 0;
- channel->playing->pitch_envelope.tick = 0;
- }
- channel->playing->fadeoutcount = 1024;
- // Should we remove IT_PLAYING_BACKGROUND? Test with sample with sustain loop...
- channel->playing->flags &= ~(IT_PLAYING_BACKGROUND | IT_PLAYING_SUSTAINOFF | IT_PLAYING_FADING | IT_PLAYING_DEAD);
- it_playing_update_resamplers(channel->playing);
-
- if (!flags && channel->sample)
- if (sigdata->flags & IT_USE_INSTRUMENTS)
- channel->playing->env_instrument = &sigdata->instrument[channel->instrument-1];
-}
-
-
-
-static void it_note_off(IT_PLAYING *playing)
-{- if (playing) {- playing->enabled_envelopes |= IT_ENV_VOLUME;
- playing->flags |= IT_PLAYING_BACKGROUND | IT_PLAYING_SUSTAINOFF;
- fix_sample_looping(playing);
- it_playing_update_resamplers(playing);
- if (playing->instrument)
- if ((playing->instrument->volume_envelope.flags & (IT_ENVELOPE_ON | IT_ENVELOPE_LOOP_ON)) != IT_ENVELOPE_ON)
- playing->flags |= IT_PLAYING_FADING;
- }
-}
-
-
-
-static void xm_note_off(DUMB_IT_SIGDATA *sigdata, IT_CHANNEL *channel)
-{- if (channel->playing) {- if (!channel->instrument || channel->instrument > sigdata->n_instruments ||
- !(sigdata->instrument[channel->instrument-1].volume_envelope.flags & IT_ENVELOPE_ON))
- //if (!(entry->mask & IT_ENTRY_INSTRUMENT))
- // dunno what that was there for ...
- channel->volume = 0;
- channel->playing->flags |= IT_PLAYING_SUSTAINOFF | IT_PLAYING_FADING;
- it_playing_update_resamplers(channel->playing);
- }
-}
-
-
-static void recalculate_it_envelope_node(IT_PLAYING_ENVELOPE *pe, IT_ENVELOPE *e)
-{- int envpos = pe->tick;
- unsigned int pt = e->n_nodes - 1;
- unsigned int i;
- for (i = 0; i < (unsigned int)(e->n_nodes - 1); ++i)
- {- if (envpos <= e->node_t[i])
- {- pt = i;
- break;
- }
- }
- pe->next_node = pt;
-}
-
-
-static void recalculate_it_envelope_nodes(IT_PLAYING *playing)
-{- recalculate_it_envelope_node(&playing->volume_envelope, &playing->env_instrument->volume_envelope);
- recalculate_it_envelope_node(&playing->pan_envelope, &playing->env_instrument->pitch_envelope);
- recalculate_it_envelope_node(&playing->pitch_envelope, &playing->env_instrument->pitch_envelope);
-}
-
-
-static void it_retrigger_note(DUMB_IT_SIGRENDERER *sigrenderer, IT_CHANNEL *channel)
-{- int vol_env_tick = 0;
- int pan_env_tick = 0;
- int pitch_env_tick = 0;
-
- DUMB_IT_SIGDATA *sigdata = sigrenderer->sigdata;
- unsigned char nna = ~0;
- int i, envelopes_copied = 0;
-
- if (channel->playing) {- if (channel->note == IT_NOTE_CUT)
- nna = NNA_NOTE_CUT;
- else if (channel->note == IT_NOTE_OFF)
- nna = NNA_NOTE_OFF;
- else if (channel->note > 120)
- nna = NNA_NOTE_FADE;
- else if (!channel->playing->instrument || (channel->playing->flags & IT_PLAYING_DEAD))
- nna = NNA_NOTE_CUT;
- else if (channel->new_note_action != 0xFF)
- {- nna = channel->new_note_action;
- }
- else
- nna = channel->playing->instrument->new_note_action;
-
- if (!(channel->playing->flags & IT_PLAYING_SUSTAINOFF))
- {- if (nna != NNA_NOTE_CUT)
- vol_env_tick = channel->playing->volume_envelope.tick;
- pan_env_tick = channel->playing->pan_envelope.tick;
- pitch_env_tick = channel->playing->pitch_envelope.tick;
- envelopes_copied = 1;
- }
-
- switch (nna) {- case NNA_NOTE_CUT:
- channel->playing->declick_stage = 3;
- break;
- case NNA_NOTE_OFF:
- it_note_off(channel->playing);
- break;
- case NNA_NOTE_FADE:
- channel->playing->flags |= IT_PLAYING_BACKGROUND | IT_PLAYING_FADING;
- break;
- }
- }
-
- channel->new_note_action = 0xFF;
-
- if (channel->sample == 0 || channel->note > 120)
- return;
-
- channel->destnote = IT_NOTE_OFF;
-
- if (channel->playing) {- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (!sigrenderer->playing[i]) {- sigrenderer->playing[i] = channel->playing;
- channel->playing = NULL;
- break;
- }
- }
-
- if (sigrenderer->sigdata->flags & IT_USE_INSTRUMENTS)
- {- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {- IT_PLAYING * playing = sigrenderer->playing[i];
- if (playing && playing->channel == channel && playing->instrument->dup_check_type) {- int match = 1;
- switch (playing->instrument->dup_check_type)
- {- case DCT_NOTE:
- match = (channel->truenote == playing->note);
- case DCT_SAMPLE:
- match = match && (channel->sample == playing->sampnum);
- case DCT_INSTRUMENT:
- match = match && (channel->instrument == playing->instnum);
- break;
- }
-
- if (match)
- {- switch (playing->instrument->dup_check_action)
- {- case DCA_NOTE_CUT:
- playing->declick_stage = 3;
- if (channel->playing == playing) channel->playing = NULL;
- break;
- case DCA_NOTE_OFF:
- if (!(playing->flags & IT_PLAYING_SUSTAINOFF))
- it_note_off(playing);
- break;
- case DCA_NOTE_FADE:
- playing->flags |= IT_PLAYING_BACKGROUND | IT_PLAYING_FADING;
- break;
- }
- }
- }
- }
- }
-
-/** WARNING - come up with some more heuristics for replacing old notes */
-#if 0
- if (channel->playing) {- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (sigrenderer->playing[i]->flags & IT_PLAYING_BACKGROUND) {- write_seqtime();
- sequence_c(SEQUENCE_STOP_SIGNAL);
- sequence_c(i);
- channel->VChannel = &module->VChannel[i];
- break;
- }
- }
- }
-#endif
- }
-
- if (channel->playing)
- free_playing(channel->playing);
-
- channel->playing = new_playing();
-
- if (!channel->playing)
- return;
-
- if (!envelopes_copied && sigdata->flags & IT_USE_INSTRUMENTS) {- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {- IT_PLAYING * playing = sigrenderer->playing[i];
- if (!playing || playing->channel != channel) continue;
- if (playing->flags & IT_PLAYING_SUSTAINOFF) continue;
- if (nna != NNA_NOTE_CUT)
- vol_env_tick = playing->volume_envelope.tick;
- pan_env_tick = playing->pan_envelope.tick;
- pitch_env_tick = playing->pitch_envelope.tick;
- envelopes_copied = 1;
- break;
- }
- }
-
- channel->playing->flags = 0;
- channel->playing->resampling_quality = sigrenderer->resampling_quality;
- channel->playing->channel = channel;
- channel->playing->sample = &sigdata->sample[channel->sample-1];
- if (sigdata->flags & IT_USE_INSTRUMENTS)
- channel->playing->instrument = &sigdata->instrument[channel->instrument-1];
- else
- channel->playing->instrument = NULL;
- channel->playing->env_instrument = channel->playing->instrument;
- channel->playing->sampnum = channel->sample;
- channel->playing->instnum = channel->instrument;
- channel->playing->declick_stage = 0;
- channel->playing->channel_volume = channel->channelvolume;
- channel->playing->note = channel->truenote;
- channel->playing->enabled_envelopes = 0;
- channel->playing->volume_offset = 0;
- channel->playing->panning_offset = 0;
- //channel->playing->output = channel->output;
- if (sigdata->flags & IT_USE_INSTRUMENTS) {- IT_PLAYING * playing = channel->playing;
- IT_INSTRUMENT * instrument = playing->instrument;
- if (instrument->volume_envelope.flags & IT_ENVELOPE_ON) playing->enabled_envelopes |= IT_ENV_VOLUME;
- if (instrument->pan_envelope.flags & IT_ENVELOPE_ON) playing->enabled_envelopes |= IT_ENV_PANNING;
- if (instrument->pitch_envelope.flags & IT_ENVELOPE_ON) playing->enabled_envelopes |= IT_ENV_PITCH;
- if (instrument->random_volume) playing->volume_offset = (rand() % (instrument->random_volume * 2 + 1)) - instrument->random_volume;
- if (instrument->random_pan) playing->panning_offset = (rand() % (instrument->random_pan * 2 + 1)) - instrument->random_pan;
- //if (instrument->output) playing->output = instrument->output;
- }
- channel->playing->filter_cutoff = 127;
- channel->playing->filter_resonance = 0;
- channel->playing->true_filter_cutoff = 127 << 8;
- channel->playing->true_filter_resonance = 0;
- channel->playing->vibrato_speed = 0;
- channel->playing->vibrato_depth = 0;
- channel->playing->vibrato_n = 0;
- channel->playing->vibrato_time = 0;
- channel->playing->vibrato_waveform = channel->vibrato_waveform;
- channel->playing->tremolo_speed = 0;
- channel->playing->tremolo_depth = 0;
- channel->playing->tremolo_time = 0;
- channel->playing->tremolo_waveform = channel->tremolo_waveform;
- channel->playing->panbrello_speed = 0;
- channel->playing->panbrello_depth = 0;
- channel->playing->panbrello_time = 0;
- channel->playing->panbrello_waveform = channel->panbrello_waveform;
- channel->playing->panbrello_random = 0;
- channel->playing->sample_vibrato_time = 0;
- channel->playing->sample_vibrato_waveform = channel->playing->sample->vibrato_waveform;
- channel->playing->sample_vibrato_depth = 0;
- channel->playing->slide = 0;
- channel->playing->finetune = channel->playing->sample->finetune;
-
- if (sigdata->flags & IT_USE_INSTRUMENTS)
- {- if (envelopes_copied && channel->playing->env_instrument->volume_envelope.flags & IT_ENVELOPE_CARRY) {- channel->playing->volume_envelope.tick = vol_env_tick;
- } else {- channel->playing->volume_envelope.tick = 0;
- }
- if (envelopes_copied && channel->playing->env_instrument->pan_envelope.flags & IT_ENVELOPE_CARRY) {- channel->playing->pan_envelope.tick = pan_env_tick;
- } else {- channel->playing->pan_envelope.tick = 0;
- }
- if (envelopes_copied && channel->playing->env_instrument->pitch_envelope.flags & IT_ENVELOPE_CARRY) {- channel->playing->pitch_envelope.tick = pitch_env_tick;
- } else {- channel->playing->pitch_envelope.tick = 0;
- }
- recalculate_it_envelope_nodes(channel->playing);
- }
- channel->playing->fadeoutcount = 1024;
- it_reset_filter_state(&channel->playing->filter_state[0]);
- it_reset_filter_state(&channel->playing->filter_state[1]);
- it_playing_reset_resamplers(channel->playing, 0);
-
- /** WARNING - is everything initialised? */
-}
-
-
-
-static void get_default_volpan(DUMB_IT_SIGDATA *sigdata, IT_CHANNEL *channel)
-{- if (channel->sample == 0)
- return;
-
- channel->volume = sigdata->sample[channel->sample-1].default_volume;
-
- if (sigdata->flags & IT_WAS_AN_XM) {- if (!(sigdata->flags & IT_WAS_A_MOD))
- channel->truepan = 32 + sigdata->sample[channel->sample-1].default_pan*64;
- return;
- }
-
- {- int pan = sigdata->sample[channel->sample-1].default_pan;
- if (pan >= 128 && pan <= 192) {- channel->pan = pan - 128;
- return;
- }
- }
-
- if (sigdata->flags & IT_USE_INSTRUMENTS) {- IT_INSTRUMENT *instrument = &sigdata->instrument[channel->instrument-1];
- if (instrument->default_pan <= 64)
- channel->pan = instrument->default_pan;
- if (instrument->filter_cutoff >= 128)
- channel->filter_cutoff = instrument->filter_cutoff - 128;
- if (instrument->filter_resonance >= 128)
- channel->filter_resonance = instrument->filter_resonance - 128;
- }
-}
-
-
-
-static void get_true_pan(DUMB_IT_SIGDATA *sigdata, IT_CHANNEL *channel)
-{- channel->truepan = channel->pan << IT_ENVELOPE_SHIFT;
-
- if (channel->sample && !IT_IS_SURROUND_SHIFTED(channel->truepan) && (sigdata->flags & IT_USE_INSTRUMENTS)) {- IT_INSTRUMENT *instrument = &sigdata->instrument[channel->instrument-1];
- int truepan = channel->truepan;
- truepan += (channel->note - instrument->pp_centre) * instrument->pp_separation << (IT_ENVELOPE_SHIFT - 3);
- channel->truepan = (unsigned short)MID(0, truepan, 64 << IT_ENVELOPE_SHIFT);
- }
-}
-
-
-
-static void post_process_it_volpan(DUMB_IT_SIGRENDERER *sigrenderer, IT_ENTRY *entry)
-{- IT_CHANNEL *channel = &sigrenderer->channel[(int)entry->channel];
-
- if (entry->mask & IT_ENTRY_VOLPAN) {- if (entry->volpan <= 84) {- /* Volume */
- /* Fine volume slide up */
- /* Fine volume slide down */
- } else if (entry->volpan <= 94) {- /* Volume slide up */
- unsigned char v = entry->volpan - 85;
- if (v == 0)
- v = channel->lastvolslide;
- channel->lastvolslide = v;
- /* = effect Dx0 where x == entry->volpan - 85 */
- channel->volslide += v;
- } else if (entry->volpan <= 104) {- /* Volume slide down */
- unsigned char v = entry->volpan - 95;
- if (v == 0)
- v = channel->lastvolslide;
- channel->lastvolslide = v;
- /* = effect D0x where x == entry->volpan - 95 */
- channel->volslide -= v;
- } else if (entry->volpan <= 114) {- /* Portamento down */
- unsigned char v = (entry->volpan - 105) << 2;
- if (v == 0)
- v = channel->lastEF;
- channel->lastEF = v;
- channel->portamento -= v << 4;
- } else if (entry->volpan <= 124) {- /* Portamento up */
- unsigned char v = (entry->volpan - 115) << 2;
- if (v == 0)
- v = channel->lastEF;
- channel->lastEF = v;
- channel->portamento += v << 4;
- } else if (entry->volpan <= 202) {- /* Pan */
- /* Tone Portamento */
- } else if (entry->volpan <= 212) {- /* Vibrato */
- /* This is unaffected by IT_OLD_EFFECTS. However, if v == 0, then any doubling of depth that happened before (with Hxy in the effect column) will be preserved. */
- unsigned char v = entry->volpan - 203;
- if (v == 0)
- v = channel->lastHdepth;
- else {- v <<= 2;
- channel->lastHdepth = v;
- }
- if (channel->playing) {- channel->playing->vibrato_speed = channel->lastHspeed;
- channel->playing->vibrato_depth = v;
- channel->playing->vibrato_n++;
- }
- }
- }
-}
-
-
-
-static void it_send_midi(DUMB_IT_SIGRENDERER *sigrenderer, IT_CHANNEL *channel, unsigned char midi_byte)
-{- if (sigrenderer->callbacks->midi)
- if ((*sigrenderer->callbacks->midi)(sigrenderer->callbacks->midi_data, (int)(channel - sigrenderer->channel), midi_byte))
- return;
-
- switch (channel->midi_state) {- case 4: /* Ready to receive resonance parameter */
- if (midi_byte < 0x80) channel->filter_resonance = midi_byte;
- channel->midi_state = 0;
- break;
- case 3: /* Ready to receive cutoff parameter */
- if (midi_byte < 0x80) channel->filter_cutoff = midi_byte;
- channel->midi_state = 0;
- break;
- case 2: /* Ready for byte specifying which parameter will follow */
- if (midi_byte == 0) /* Cutoff */
- channel->midi_state = 3;
- else if (midi_byte == 1) /* Resonance */
- channel->midi_state = 4;
- else
- channel->midi_state = 0;
- break;
- default: /* Counting initial F0 bytes */
- switch (midi_byte) {- case 0xF0:
- channel->midi_state++;
- break;
- case 0xFA:
- case 0xFC:
- case 0xFF:
- /* Reset filter parameters for all channels */
- {- int i;
- for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {- sigrenderer->channel[i].filter_cutoff = 127;
- sigrenderer->channel[i].filter_resonance = 0;
- //// should we be resetting channel[i].playing->filter_* here?
- }
- }
- /* Fall through */
- default:
- channel->midi_state = 0;
- break;
- }
- }
-}
-
-
-
-static void xm_envelope_calculate_value(IT_ENVELOPE *envelope, IT_PLAYING_ENVELOPE *pe)
-{- if (pe->next_node <= 0)
- pe->value = envelope->node_y[0] << IT_ENVELOPE_SHIFT;
- else if (pe->next_node >= envelope->n_nodes)
- pe->value = envelope->node_y[envelope->n_nodes-1] << IT_ENVELOPE_SHIFT;
- else {- int ys = envelope->node_y[pe->next_node-1] << IT_ENVELOPE_SHIFT;
- int ts = envelope->node_t[pe->next_node-1];
- int te = envelope->node_t[pe->next_node];
-
- if (ts == te)
- pe->value = ys;
- else {- int ye = envelope->node_y[pe->next_node] << IT_ENVELOPE_SHIFT;
- int t = pe->tick;
-
- pe->value = ys + (ye - ys) * (t - ts) / (te - ts);
- }
- }
-}
-
-
-
-extern const char xm_convert_vibrato[];
-
-const char mod_convert_vibrato[] = {- IT_VIBRATO_SINE,
- IT_VIBRATO_RAMP_UP, /* this will be inverted by IT_OLD_EFFECTS */
- IT_VIBRATO_XM_SQUARE,
- IT_VIBRATO_XM_SQUARE
-};
-
-/* Returns 1 if a callback caused termination of playback. */
-static int process_effects(DUMB_IT_SIGRENDERER *sigrenderer, IT_ENTRY *entry, int ignore_cxx)
-{- DUMB_IT_SIGDATA *sigdata = sigrenderer->sigdata;
- IT_PLAYING *playing;
- int i;
-
- IT_CHANNEL *channel = &sigrenderer->channel[(int)entry->channel];
-
- if (entry->mask & IT_ENTRY_EFFECT) {- switch (entry->effect) {-/*
-Notes about effects (as compared to other module formats)
-
-C This is now in *HEX*. (Used to be in decimal in ST3)
-E/F/G/H/U You need to check whether the song uses Amiga/Linear slides.
-H/U Vibrato in Impulse Tracker is two times finer than in
- any other tracker and is updated EVERY tick.
- If "Old Effects" is *ON*, then the vibrato is played in the
- normal manner (every non-row tick and normal depth)
-E/F/G These commands ALL share the same memory.
-Oxx Offsets to samples are to the 'xx00th' SAMPLE. (ie. for
- 16 bit samples, the offset is xx00h*2)
- Oxx past the sample end will be ignored, unless "Old Effects"
- is ON, in which case the Oxx will play from the end of the
- sample.
-Yxy This uses a table 4 times larger (hence 4 times slower) than
- vibrato or tremelo. If the waveform is set to random, then
- the 'speed' part of the command is interpreted as a delay.
-*/
- case IT_SET_SPEED:
- if (entry->effectvalue)
- {- /*if (entry->effectvalue == 255)
- if (sigrenderer->callbacks->xm_speed_zero && (*sigrenderer->callbacks->xm_speed_zero)(sigrenderer->callbacks->xm_speed_zero_data))
- return 1;*/
- if (sigdata->flags & IT_WAS_AN_STM) {- int n = entry->effectvalue;
- if (n >= 32) {- sigrenderer->tick = sigrenderer->speed = n;
- }
- } else {- sigrenderer->tick = sigrenderer->speed = entry->effectvalue;
- }
- }
- else if ((sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_MOD)) == IT_WAS_AN_XM) {-#ifdef BIT_ARRAY_BULLSHIT
- bit_array_set(sigrenderer->played, sigrenderer->order * 256 + sigrenderer->row);
-#endif
- sigrenderer->speed = 0;
-#ifdef BIT_ARRAY_BULLSHIT
- sigrenderer->looped = 1;
-#endif
- if (sigrenderer->callbacks->xm_speed_zero && (*sigrenderer->callbacks->xm_speed_zero)(sigrenderer->callbacks->xm_speed_zero_data))
- return 1;
- }
- break;
-
- case IT_BREAK_TO_ROW:
- if (ignore_cxx) break;
- sigrenderer->breakrow = entry->effectvalue;
- /* XXX jump and break on the same row */
- if ( ( ( sigrenderer->processrow | 0xC00 ) == 0xFFFE ) &&
- ! ( sigrenderer->processrow & 0x400 ) ) {- sigrenderer->processrow = 0xFFFE & ~0xC00;
- } else {- sigrenderer->processorder = sigrenderer->order;
- sigrenderer->processrow = 0xFFFE & ~0x800;
- }
- break;
-
- case IT_VOLSLIDE_VIBRATO:
- for (i = -1; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (i < 0) playing = channel->playing;
- else {- playing = sigrenderer->playing[i];
- if (!playing || playing->channel != channel) continue;
- }
- if (playing) {- playing->vibrato_speed = channel->lastHspeed;
- playing->vibrato_depth = channel->lastHdepth;
- playing->vibrato_n++;
- }
- }
- /* Fall through and process volume slide. */
- case IT_VOLUME_SLIDE:
- case IT_VOLSLIDE_TONEPORTA:
- /* The tone portamento component is handled elsewhere. */
- {- unsigned char v = entry->effectvalue;
- if (!(sigdata->flags & IT_WAS_A_MOD)) {- if (v == 0)
- v = channel->lastDKL;
- channel->lastDKL = v;
- }
- if (!(sigdata->flags & IT_WAS_AN_XM)) {- int clip = (sigdata->flags & IT_WAS_AN_S3M) ? 63 : 64;
- if ((v & 0x0F) == 0x0F) {- if (!(v & 0xF0)) {- channel->volslide = -15;
- channel->volume -= 15;
- if (channel->volume > clip) channel->volume = 0;
- } else {- channel->volume += v >> 4;
- if (channel->volume > clip) channel->volume = clip;
- }
- } else if ((v & 0xF0) == 0xF0) {- if (!(v & 0x0F)) {- channel->volslide = 15;
- channel->volume += 15;
- if (channel->volume > clip) channel->volume = clip;
- } else {- channel->volume -= v & 15;
- if (channel->volume > clip) channel->volume = 0;
- }
- } else if (!(v & 0x0F)) {- channel->volslide = v >> 4;
- } else {- channel->volslide = -(v & 15);
- }
- } else {- if ((v & 0x0F) == 0) { /* Dx0 */- channel->volslide = v >> 4;
- } else if ((v & 0xF0) == 0) { /* D0x */- channel->volslide = -v;
- } else if ((v & 0x0F) == 0x0F) { /* DxF */- channel->volume += v >> 4;
- if (channel->volume > 64) channel->volume = 64;
- } else if ((v & 0xF0) == 0xF0) { /* DFx */- channel->volume -= v & 15;
- if (channel->volume > 64) channel->volume = 0;
- }
- }
- }
- break;
- case IT_XM_FINE_VOLSLIDE_DOWN:
- {- unsigned char v = entry->effectvalue;
- if (v == 0)
- v = channel->xm_lastEB;
- channel->xm_lastEB = v;
- channel->volume -= v;
- if (channel->volume > 64) channel->volume = 0;
- }
- break;
- case IT_XM_FINE_VOLSLIDE_UP:
- {- unsigned char v = entry->effectvalue;
- if (v == 0)
- v = channel->xm_lastEA;
- channel->xm_lastEA = v;
- channel->volume += v;
- if (channel->volume > 64) channel->volume = 64;
- }
- break;
- case IT_PORTAMENTO_DOWN:
- {- unsigned char v = entry->effectvalue;
- if (sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_669)) {- if (!(sigdata->flags & IT_WAS_A_MOD)) {- if (v == 0xF0)
- v |= channel->xm_lastE2;
- else if (v >= 0xF0)
- channel->xm_lastE2 = v & 15;
- else if (v == 0xE0)
- v |= channel->xm_lastX2;
- else
- channel->xm_lastX2 = v & 15;
- }
- } else if (sigdata->flags & IT_WAS_AN_S3M) {- if (v == 0)
- v = channel->lastDKL;
- channel->lastDKL = v;
- } else {- if (v == 0)
- v = channel->lastEF;
- channel->lastEF = v;
- }
- for (i = -1; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (i < 0) playing = channel->playing;
- else {- playing = sigrenderer->playing[i];
- if (!playing || playing->channel != channel) continue;
- }
- if (playing) {- if ((v & 0xF0) == 0xF0)
- playing->slide -= (v & 15) << 4;
- else if ((v & 0xF0) == 0xE0)
- playing->slide -= (v & 15) << 2;
- else if (i < 0 && sigdata->flags & IT_WAS_A_669)
- channel->portamento -= v << 3;
- else if (i < 0)
- channel->portamento -= v << 4;
- }
- }
- }
- break;
- case IT_PORTAMENTO_UP:
- {- unsigned char v = entry->effectvalue;
- if (sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_669)) {- if (!(sigdata->flags & IT_WAS_A_MOD)) {- if (v == 0xF0)
- v |= channel->xm_lastE1;
- else if (v >= 0xF0)
- channel->xm_lastE1 = v & 15;
- else if (v == 0xE0)
- v |= channel->xm_lastX1;
- else
- channel->xm_lastX1 = v & 15;
- }
- } else if (sigdata->flags & IT_WAS_AN_S3M) {- if (v == 0)
- v = channel->lastDKL;
- channel->lastDKL = v;
- } else {- if (v == 0)
- v = channel->lastEF;
- channel->lastEF = v;
- }
- for (i = -1; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (i < 0) playing = channel->playing;
- else {- playing = sigrenderer->playing[i];
- if (!playing || playing->channel != channel) continue;
- }
- if (playing) {- if ((v & 0xF0) == 0xF0)
- playing->slide += (v & 15) << 4;
- else if ((v & 0xF0) == 0xE0)
- playing->slide += (v & 15) << 2;
- else if (i < 0 && sigdata->flags & IT_WAS_A_669)
- channel->portamento += v << 3;
- else if (i < 0)
- channel->portamento += v << 4;
- }
- }
- }
- break;
- case IT_XM_PORTAMENTO_DOWN:
- {- unsigned char v = entry->effectvalue;
- if (!(sigdata->flags & IT_WAS_A_MOD)) {- if (v == 0)
- v = channel->lastJ;
- channel->lastJ = v;
- }
- if (channel->playing)
- channel->portamento -= v << 4;
- }
- break;
- case IT_XM_PORTAMENTO_UP:
- {- unsigned char v = entry->effectvalue;
- if (!(sigdata->flags & IT_WAS_A_MOD)) {- if (v == 0)
- v = channel->lastEF;
- channel->lastEF = v;
- }
- if (channel->playing)
- channel->portamento += v << 4;
- }
- break;
- case IT_XM_KEY_OFF:
- channel->key_off_count = entry->effectvalue;
- if (!channel->key_off_count) xm_note_off(sigdata, channel);
- break;
- case IT_VIBRATO:
- {- if (entry->effectvalue || !(sigdata->flags & IT_WAS_A_669)) {- unsigned char speed = entry->effectvalue >> 4;
- unsigned char depth = entry->effectvalue & 15;
- if (speed == 0)
- speed = channel->lastHspeed;
- channel->lastHspeed = speed;
- if (depth == 0)
- depth = channel->lastHdepth;
- else {- if (sigdata->flags & IT_OLD_EFFECTS && !(sigdata->flags & IT_WAS_A_MOD))
- depth <<= 3;
- else
- depth <<= 2;
- channel->lastHdepth = depth;
- }
- for (i = -1; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (i < 0) playing = channel->playing;
- else {- playing = sigrenderer->playing[i];
- if (!playing || playing->channel != channel) continue;
- }
- if (playing) {- playing->vibrato_speed = speed;
- playing->vibrato_depth = depth;
- playing->vibrato_n++;
- }
- }
- }
- }
- break;
- case IT_TREMOR:
- {- unsigned char v = entry->effectvalue;
- if (v == 0) {- if (sigdata->flags & IT_WAS_AN_S3M)
- v = channel->lastDKL;
- else
- v = channel->lastI;
- }
- else if (!(sigdata->flags & IT_OLD_EFFECTS)) {- if (v & 0xF0) v -= 0x10;
- if (v & 0x0F) v -= 0x01;
- }
- if (sigdata->flags & IT_WAS_AN_S3M)
- channel->lastDKL = v;
- else
- channel->lastI = v;
- channel->tremor_time |= 128;
- }
- update_tremor(channel);
- break;
- case IT_ARPEGGIO:
- {- unsigned char v = entry->effectvalue;
- /* XM files have no memory for arpeggio (000 = no effect)
- * and we use lastJ for portamento down instead.
- */
- if (!(sigdata->flags & IT_WAS_AN_XM)) {- if (sigdata->flags & IT_WAS_AN_S3M) {- if (v == 0)
- v = channel->lastDKL;
- channel->lastDKL = v;
- } else {- if (v == 0)
- v = channel->lastJ;
- channel->lastJ = v;
- }
- }
- channel->arpeggio_offsets[0] = 0;
- channel->arpeggio_offsets[1] = (v & 0xF0) >> 4;
- channel->arpeggio_offsets[2] = (v & 0x0F);
- channel->arpeggio_table = (const unsigned char *)(((sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_MOD))==IT_WAS_AN_XM) ? &arpeggio_xm : &arpeggio_mod);
- }
- break;
- case IT_SET_CHANNEL_VOLUME:
- if (sigdata->flags & IT_WAS_AN_XM)
- channel->volume = MIN(entry->effectvalue, 64);
- else if (entry->effectvalue <= 64)
- channel->channelvolume = entry->effectvalue;
-#ifdef VOLUME_OUT_OF_RANGE_SETS_MAXIMUM
- else
- channel->channelvolume = 64;
-#endif
- if (channel->playing)
- channel->playing->channel_volume = channel->channelvolume;
- break;
- case IT_CHANNEL_VOLUME_SLIDE:
- {- unsigned char v = entry->effectvalue;
- if (v == 0)
- v = channel->lastN;
- channel->lastN = v;
- if ((v & 0x0F) == 0) { /* Nx0 */- channel->channelvolslide = v >> 4;
- } else if ((v & 0xF0) == 0) { /* N0x */- channel->channelvolslide = -v;
- } else {- if ((v & 0x0F) == 0x0F) { /* NxF */- channel->channelvolume += v >> 4;
- if (channel->channelvolume > 64) channel->channelvolume = 64;
- } else if ((v & 0xF0) == 0xF0) { /* NFx */- channel->channelvolume -= v & 15;
- if (channel->channelvolume > 64) channel->channelvolume = 0;
- } else
- break;
- if (channel->playing)
- channel->playing->channel_volume = channel->channelvolume;
- }
- }
- break;
- case IT_SET_SAMPLE_OFFSET:
- {- unsigned char v = entry->effectvalue;
- /*if (sigdata->flags & IT_WAS_A_MOD) {- if (v == 0) break;
- } else*/ {- if (v == 0)
- v = channel->lastO;
- channel->lastO = v;
- }
- /* Note: we set the offset even if tone portamento is
- * specified. Impulse Tracker does the same.
- */
- if (entry->mask & IT_ENTRY_NOTE) {- if (channel->playing) {- int offset = ((int)channel->high_offset << 16) | ((int)v << 8);
- IT_PLAYING *playing = channel->playing;
- IT_SAMPLE *sample = playing->sample;
- int end;
- if ((sample->flags & IT_SAMPLE_SUS_LOOP) && !(playing->flags & IT_PLAYING_SUSTAINOFF))
- end = (int)sample->sus_loop_end;
- else if (sample->flags & IT_SAMPLE_LOOP)
- end = (int)sample->loop_end;
- else {- end = (int)sample->length;
- if ( sigdata->flags & IT_WAS_PROCESSED && end > 64 ) // XXX bah damn LPC and edge case modules
- end -= 64;
- }
- if ((sigdata->flags & IT_WAS_A_PTM) && (sample->flags & IT_SAMPLE_16BIT))
- offset >>= 1;
- if (offset < end) {- it_playing_reset_resamplers(playing, offset);
- playing->declick_stage = 0;
- } else if (sigdata->flags & IT_OLD_EFFECTS) {- it_playing_reset_resamplers(playing, end);
- playing->declick_stage = 0;
- }
- }
- }
- }
- break;
- case IT_PANNING_SLIDE:
- /** JULIEN: guess what? the docs are wrong! (how unusual ;)
- * Pxy seems to memorize its previous value... and there
- * might be other mistakes like that... (sigh!)
- */
- /** ENTHEH: umm... but... the docs say that Pxy memorises its
- * value... don't they? :o
- */
- {- unsigned char v = entry->effectvalue;
- int p = channel->truepan;
- if (sigdata->flags & IT_WAS_AN_XM)
- {- if (IT_IS_SURROUND(channel->pan))
- {- channel->pan = 32;
- p = 32 + 128 * 64;
- }
- p >>= 6;
- }
- else {- if (IT_IS_SURROUND(channel->pan)) p = 32 << 8;
- p = (p + 128) >> 8;
- channel->pan = p;
- }
- if (v == 0)
- v = channel->lastP;
- channel->lastP = v;
- if ((v & 0x0F) == 0) { /* Px0 */- channel->panslide = -(v >> 4);
- } else if ((v & 0xF0) == 0) { /* P0x */- channel->panslide = v;
- } else if ((v & 0x0F) == 0x0F) { /* PxF */- p -= v >> 4;
- } else if ((v & 0xF0) == 0xF0) { /* PFx */- p += v & 15;
- }
- if (sigdata->flags & IT_WAS_AN_XM)
- channel->truepan = 32 + MID(0, p, 255) * 64;
- else {- if (p < 0) p = 0;
- else if (p > 64) p = 64;
- channel->pan = p;
- channel->truepan = p << 8;
- }
- }
- break;
- case IT_RETRIGGER_NOTE:
- {- unsigned char v = entry->effectvalue;
- if (sigdata->flags & IT_WAS_AN_XM) {- if ((v & 0x0F) == 0) v |= channel->lastQ & 0x0F;
- if ((v & 0xF0) == 0) v |= channel->lastQ & 0xF0;
- channel->lastQ = v;
- } else if (sigdata->flags & IT_WAS_AN_S3M) {- if (v == 0)
- v = channel->lastDKL;
- channel->lastDKL = v;
- } else {- if (v == 0)
- v = channel->lastQ;
- channel->lastQ = v;
- }
- if ((v & 0x0F) == 0) v |= 0x01;
- channel->retrig = v;
- if (entry->mask & IT_ENTRY_NOTE) {- channel->retrig_tick = v & 0x0F;
- /* Emulate a bug */
- if (sigdata->flags & IT_WAS_AN_XM)
- update_retrig(sigrenderer, channel);
- } else
- update_retrig(sigrenderer, channel);
- }
- break;
- case IT_XM_RETRIGGER_NOTE:
- channel->retrig_tick = channel->xm_retrig = entry->effectvalue;
- if (entry->effectvalue == 0)
- if (channel->playing) {- it_playing_reset_resamplers(channel->playing, 0);
- channel->playing->declick_stage = 0;
- }
- break;
- case IT_TREMOLO:
- {- unsigned char speed, depth;
- if (sigdata->flags & IT_WAS_AN_S3M) {- unsigned char v = entry->effectvalue;
- if (v == 0)
- v = channel->lastDKL;
- channel->lastDKL = v;
- speed = v >> 4;
- depth = v & 15;
- } else {- speed = entry->effectvalue >> 4;
- depth = entry->effectvalue & 15;
- if (speed == 0)
- speed = channel->lastRspeed;
- channel->lastRspeed = speed;
- if (depth == 0)
- depth = channel->lastRdepth;
- channel->lastRdepth = depth;
- }
- for (i = -1; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (i < 0) playing = channel->playing;
- else {- playing = sigrenderer->playing[i];
- if (!playing || playing->channel != channel) continue;
- }
- if (playing) {- playing->tremolo_speed = speed;
- playing->tremolo_depth = depth;
- }
- }
- }
- break;
- case IT_S:
- {- /* channel->lastS was set in update_pattern_variables(). */
- unsigned char effectvalue = channel->lastS;
- switch (effectvalue >> 4) {- //case IT_S_SET_FILTER:
- /* Waveforms for commands S3x, S4x and S5x:
- * 0: Sine wave
- * 1: Ramp down
- * 2: Square wave
- * 3: Random wave
- */
- case IT_S_SET_GLISSANDO_CONTROL:
- channel->glissando = effectvalue & 15;
- break;
-
- case IT_S_FINETUNE:
- if (channel->playing) {- channel->playing->finetune = ((int)(effectvalue & 15) - 8) << 5;
- }
- break;
-
- case IT_S_SET_VIBRATO_WAVEFORM:
- {- int waveform = effectvalue & 3;
- if (sigdata->flags & IT_WAS_A_MOD) waveform = mod_convert_vibrato[waveform];
- else if (sigdata->flags & IT_WAS_AN_XM) waveform = xm_convert_vibrato[waveform];
- channel->vibrato_waveform = waveform;
- if (channel->playing) {- channel->playing->vibrato_waveform = waveform;
- if (!(effectvalue & 4))
- channel->playing->vibrato_time = 0;
- }
- }
- break;
- case IT_S_SET_TREMOLO_WAVEFORM:
- {- int waveform = effectvalue & 3;
- if (sigdata->flags & IT_WAS_A_MOD) waveform = mod_convert_vibrato[waveform];
- else if (sigdata->flags & IT_WAS_AN_XM) waveform = xm_convert_vibrato[waveform];
- channel->tremolo_waveform = waveform;
- if (channel->playing) {- channel->playing->tremolo_waveform = waveform;
- if (!(effectvalue & 4))
- channel->playing->tremolo_time = 0;
- }
- }
- break;
- case IT_S_SET_PANBRELLO_WAVEFORM:
- channel->panbrello_waveform = effectvalue & 3;
- if (channel->playing) {- channel->playing->panbrello_waveform = effectvalue & 3;
- if (!(effectvalue & 4))
- channel->playing->panbrello_time = 0;
- }
- break;
-
- case IT_S_FINE_PATTERN_DELAY:
- sigrenderer->tick += effectvalue & 15;
- break;
-#if 1
- case IT_S7:
- {- if (sigrenderer->sigdata->flags & IT_USE_INSTRUMENTS)
- {- int i;
- switch (effectvalue & 15)
- {- case 0: /* cut background notes */
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++)
- {- IT_PLAYING * playing = sigrenderer->playing[i];
- if (playing && channel == playing->channel)
- {- playing->declick_stage = 3;
- if (channel->playing == playing) channel->playing = NULL;
- }
- }
- break;
- case 1: /* release background notes */
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++)
- {- IT_PLAYING * playing = sigrenderer->playing[i];
- if (playing && channel == playing->channel && !(playing->flags & IT_PLAYING_SUSTAINOFF))
- {- it_note_off(playing);
- }
- }
- break;
- case 2: /* fade background notes */
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++)
- {- IT_PLAYING * playing = sigrenderer->playing[i];
- if (playing && channel == playing->channel)
- {- //playing->flags &= IT_PLAYING_SUSTAINOFF;
- playing->flags |= IT_PLAYING_FADING;
- }
- }
- break;
- case 3:
- channel->new_note_action = NNA_NOTE_CUT;
- break;
- case 4:
- channel->new_note_action = NNA_NOTE_CONTINUE;
- break;
- case 5:
- channel->new_note_action = NNA_NOTE_OFF;
- break;
- case 6:
- channel->new_note_action = NNA_NOTE_FADE;
- break;
-
- case 7:
- if (channel->playing)
- channel->playing->enabled_envelopes &= ~IT_ENV_VOLUME;
- break;
- case 8:
- if (channel->playing)
- channel->playing->enabled_envelopes |= IT_ENV_VOLUME;
- break;
-
- case 9:
- if (channel->playing)
- channel->playing->enabled_envelopes &= ~IT_ENV_PANNING;
- break;
- case 10:
- if (channel->playing)
- channel->playing->enabled_envelopes |= IT_ENV_PANNING;
- break;
-
- case 11:
- if (channel->playing)
- channel->playing->enabled_envelopes &= ~IT_ENV_PITCH;
- break;
- case 12:
- if (channel->playing)
- channel->playing->enabled_envelopes |= IT_ENV_PITCH;
- break;
- }
- }
- }
- break;
-#endif
- case IT_S_SET_PAN:
- //ASSERT(!(sigdata->flags & IT_WAS_AN_XM));
- channel->pan =
- ((effectvalue & 15) << 2) |
- ((effectvalue & 15) >> 2);
- channel->truepan = channel->pan << IT_ENVELOPE_SHIFT;
-
- if (channel->playing)
- channel->playing->panbrello_depth = 0;
- break;
- case IT_S_SET_SURROUND_SOUND:
- if ((effectvalue & 15) == 15) {- if (channel->playing && channel->playing->sample &&
- !(channel->playing->sample->flags & (IT_SAMPLE_LOOP | IT_SAMPLE_SUS_LOOP))) {- channel->playing->flags |= IT_PLAYING_REVERSE;
- it_playing_reset_resamplers( channel->playing, channel->playing->sample->length - 1 );
- }
- } else if ((effectvalue & 15) == 1) {- channel->pan = IT_SURROUND;
- channel->truepan = channel->pan << IT_ENVELOPE_SHIFT;
- }
- if (channel->playing)
- channel->playing->panbrello_depth = 0;
- break;
- case IT_S_SET_HIGH_OFFSET:
- channel->high_offset = effectvalue & 15;
- break;
- //case IT_S_PATTERN_LOOP:
- case IT_S_DELAYED_NOTE_CUT:
- channel->note_cut_count = effectvalue & 15;
- if (!channel->note_cut_count) {- if (sigdata->flags & (IT_WAS_AN_XM | IT_WAS_A_PTM))
- channel->volume = 0;
- else
- channel->note_cut_count = 1;
- }
- break;
- case IT_S_SET_MIDI_MACRO:
- if ((sigdata->flags & (IT_WAS_AN_XM | IT_WAS_A_MOD)) == (IT_WAS_AN_XM | IT_WAS_A_MOD)) {- channel->inv_loop_speed = effectvalue & 15;
- update_invert_loop(channel, channel->playing ? channel->playing->sample : NULL);
- } else channel->SFmacro = effectvalue & 15;
- break;
- }
- }
- break;
- case IT_SET_SONG_TEMPO:
- {- unsigned char v = entry->effectvalue;
- if (v == 0)
- v = channel->lastW;
- channel->lastW = v;
- if (v < 0x10)
- sigrenderer->temposlide = -v;
- else if (v < 0x20)
- sigrenderer->temposlide = v & 15;
- else
- sigrenderer->tempo = v;
- }
- break;
- case IT_FINE_VIBRATO:
- {- unsigned char speed = entry->effectvalue >> 4;
- unsigned char depth = entry->effectvalue & 15;
- if (speed == 0)
- speed = channel->lastHspeed;
- channel->lastHspeed = speed;
- if (depth == 0)
- depth = channel->lastHdepth;
- else {- if (sigdata->flags & IT_OLD_EFFECTS)
- depth <<= 1;
- channel->lastHdepth = depth;
- }
- for (i = -1; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (i < 0) playing = channel->playing;
- else {- playing = sigrenderer->playing[i];
- if (!playing || playing->channel != channel) continue;
- }
- if (playing) {- playing->vibrato_speed = speed;
- playing->vibrato_depth = depth;
- playing->vibrato_n++;
- }
- }
- }
- break;
- case IT_SET_GLOBAL_VOLUME:
- if ((sigdata->flags & IT_WAS_AN_S3M) && (entry->effectvalue > 64))
- break;
- if (entry->effectvalue <= 128)
- sigrenderer->globalvolume = entry->effectvalue;
-#ifdef VOLUME_OUT_OF_RANGE_SETS_MAXIMUM
- else
- sigrenderer->globalvolume = 128;
-#endif
- break;
- case IT_GLOBAL_VOLUME_SLIDE:
- {- unsigned char v = entry->effectvalue;
- if (v == 0)
- v = channel->lastW;
- channel->lastW = v;
- if ((v & 0x0F) == 0) { /* Wx0 */- sigrenderer->globalvolslide =
- (sigdata->flags & IT_WAS_AN_XM) ? (v >> 4)*2 : (v >> 4);
- } else if ((v & 0xF0) == 0) { /* W0x */- sigrenderer->globalvolslide =
- (sigdata->flags & IT_WAS_AN_XM) ? (-v)*2 : (-v);
- } else if ((v & 0x0F) == 0x0F) { /* WxF */- sigrenderer->globalvolume += v >> 4;
- if (sigrenderer->globalvolume > 128) sigrenderer->globalvolume = 128;
- } else if ((v & 0xF0) == 0xF0) { /* WFx */- sigrenderer->globalvolume -= v & 15;
- if (sigrenderer->globalvolume > 128) sigrenderer->globalvolume = 0;
- }
- }
- break;
- case IT_SET_PANNING:
- if (sigdata->flags & IT_WAS_AN_XM) {- channel->truepan = 32 + entry->effectvalue*64;
- } else {- if (sigdata->flags & IT_WAS_AN_S3M)
- channel->pan = (entry->effectvalue + 1) >> 1;
- else
- channel->pan = (entry->effectvalue + 2) >> 2;
- channel->truepan = channel->pan << IT_ENVELOPE_SHIFT;
- }
- if (channel->playing)
- channel->playing->panbrello_depth = 0;
- break;
- case IT_PANBRELLO:
- {- unsigned char speed = entry->effectvalue >> 4;
- unsigned char depth = entry->effectvalue & 15;
- if (speed == 0)
- speed = channel->lastYspeed;
- channel->lastYspeed = speed;
- if (depth == 0)
- depth = channel->lastYdepth;
- channel->lastYdepth = depth;
- if (channel->playing) {- channel->playing->panbrello_speed = speed;
- channel->playing->panbrello_depth = depth;
- }
- }
- break;
- case IT_MIDI_MACRO:
- {- const IT_MIDI *midi = sigdata->midi ? sigdata->midi : &default_midi;
- if (entry->effectvalue >= 0x80) {- int n = midi->Zmacrolen[entry->effectvalue-0x80];
- int i;
- for (i = 0; i < n; i++)
- it_send_midi(sigrenderer, channel, midi->Zmacro[entry->effectvalue-0x80][i]);
- } else {- int n = midi->SFmacrolen[channel->SFmacro];
- int i, j;
- for (i = 0, j = 1; i < n; i++, j <<= 1)
- it_send_midi(sigrenderer, channel,
- (unsigned char)(midi->SFmacroz[channel->SFmacro] & j ?
- entry->effectvalue : midi->SFmacro[channel->SFmacro][i]));
- }
- }
- break;
- case IT_XM_SET_ENVELOPE_POSITION:
- if (channel->playing && channel->playing->env_instrument) {- IT_ENVELOPE *envelope = &channel->playing->env_instrument->volume_envelope;
- if (envelope->flags & IT_ENVELOPE_ON) {- IT_PLAYING_ENVELOPE *pe = &channel->playing->volume_envelope;
- pe->tick = entry->effectvalue;
- if (pe->tick >= envelope->node_t[envelope->n_nodes-1])
- pe->tick = envelope->node_t[envelope->n_nodes-1];
- pe->next_node = 0;
- while (pe->tick > envelope->node_t[pe->next_node]) pe->next_node++;
- xm_envelope_calculate_value(envelope, pe);
- }
- }
- break;
-
- /* uggly plain portamento for now */
- case IT_PTM_NOTE_SLIDE_DOWN:
- case IT_PTM_NOTE_SLIDE_DOWN_RETRIG:
- {- channel->toneslide_retrig = (entry->effect == IT_PTM_NOTE_SLIDE_DOWN_RETRIG);
-
- if (channel->ptm_last_toneslide) {- channel->toneslide_tick = channel->last_toneslide_tick;
-
- if (--channel->toneslide_tick == 0) {- channel->truenote += channel->toneslide;
- if (channel->truenote >= 120) {- if (channel->toneslide < 0) channel->truenote = 0;
- else channel->truenote = 119;
- }
- channel->note += channel->toneslide;
- if (channel->note >= 120) {- if (channel->toneslide < 0) channel->note = 0;
- else channel->note = 119;
- }
-
- if (channel->playing) {- if (channel->sample) channel->playing->note = channel->truenote;
- else channel->playing->note = channel->note;
- it_playing_reset_resamplers(channel->playing, 0);
- channel->playing->declick_stage = 0;
- }
- }
- }
-
- channel->ptm_last_toneslide = 0;
-
- channel->toneslide = -(entry->effectvalue & 15);
- channel->ptm_toneslide = (entry->effectvalue & 0xF0) >> 4;
- channel->toneslide_tick += channel->ptm_toneslide;
- }
- break;
- case IT_PTM_NOTE_SLIDE_UP:
- case IT_PTM_NOTE_SLIDE_UP_RETRIG:
- {- channel->toneslide_retrig = (entry->effect == IT_PTM_NOTE_SLIDE_UP_RETRIG);
-
- if (channel->ptm_last_toneslide) {- channel->toneslide_tick = channel->last_toneslide_tick;
-
- if (--channel->toneslide_tick == 0) {- channel->truenote += channel->toneslide;
- if (channel->truenote >= 120) {- if (channel->toneslide < 0) channel->truenote = 0;
- else channel->truenote = 119;
- }
- channel->note += channel->toneslide;
- if (channel->note >= 120) {- if (channel->toneslide < 0) channel->note = 0;
- else channel->note = 119;
- }
-
- if (channel->playing) {- if (channel->sample) channel->playing->note = channel->truenote;
- else channel->playing->note = channel->note;
- it_playing_reset_resamplers(channel->playing, 0);
- channel->playing->declick_stage = 0;
- }
- }
- }
-
- channel->ptm_last_toneslide = 0;
-
- channel->toneslide = -(entry->effectvalue & 15);
- channel->ptm_toneslide = (entry->effectvalue & 0xF0) >> 4;
- channel->toneslide_tick += channel->ptm_toneslide;
- }
- break;
-
- case IT_OKT_NOTE_SLIDE_DOWN:
- case IT_OKT_NOTE_SLIDE_DOWN_ROW:
- channel->toneslide = -entry->effectvalue;
- channel->okt_toneslide = (entry->effect == IT_OKT_NOTE_SLIDE_DOWN) ? 255 : 1;
- break;
-
- case IT_OKT_NOTE_SLIDE_UP:
- case IT_OKT_NOTE_SLIDE_UP_ROW:
- channel->toneslide = entry->effectvalue;
- channel->okt_toneslide = (entry->effect == IT_OKT_NOTE_SLIDE_UP) ? 255 : 1;
- break;
-
- case IT_OKT_ARPEGGIO_3:
- case IT_OKT_ARPEGGIO_4:
- case IT_OKT_ARPEGGIO_5:
- {- channel->arpeggio_offsets[0] = 0;
- channel->arpeggio_offsets[1] = -(entry->effectvalue >> 4);
- channel->arpeggio_offsets[2] = entry->effectvalue & 0x0F;
-
- switch (entry->effect)
- {- case IT_OKT_ARPEGGIO_3:
- channel->arpeggio_table = (const unsigned char *)&arpeggio_okt_3;
- break;
-
- case IT_OKT_ARPEGGIO_4:
- channel->arpeggio_table = (const unsigned char *)&arpeggio_okt_4;
- break;
-
- case IT_OKT_ARPEGGIO_5:
- channel->arpeggio_table = (const unsigned char *)&arpeggio_okt_5;
- break;
- }
- }
- break;
-
- case IT_OKT_VOLUME_SLIDE_DOWN:
- if ( entry->effectvalue <= 16 ) channel->volslide = -entry->effectvalue;
- else
- {- channel->volume -= entry->effectvalue - 16;
- if (channel->volume > 64) channel->volume = 0;
- }
- break;
-
- case IT_OKT_VOLUME_SLIDE_UP:
- if ( entry->effectvalue <= 16 ) channel->volslide = entry->effectvalue;
- else
- {- channel->volume += entry->effectvalue - 16;
- if (channel->volume > 64) channel->volume = 64;
- }
- break;
- }
- }
-
- if (!(sigdata->flags & IT_WAS_AN_XM))
- post_process_it_volpan(sigrenderer, entry);
-
- return 0;
-}
-
-
-
-static int process_it_note_data(DUMB_IT_SIGRENDERER *sigrenderer, IT_ENTRY *entry)
-{- DUMB_IT_SIGDATA *sigdata = sigrenderer->sigdata;
- IT_CHANNEL *channel = &sigrenderer->channel[(int)entry->channel];
-
- // When tone portamento and instrument are specified:
- // If Gxx is off:
- // - same sample, do nothing but portamento
- // - diff sample, retrigger all but keep current note+slide + do porta
- // - if instrument is invalid, nothing; if sample is invalid, cut
- // If Gxx is on:
- // - same sample or new sample invalid, retrigger envelopes and initialise note value for portamento to 'seek' to
- // - diff sample/inst, start using new envelopes
- // When tone portamento is specified alone, sample won't change.
- // TODO: consider what happens with instrument alone after all this...
-
- if (entry->mask & (IT_ENTRY_NOTE | IT_ENTRY_INSTRUMENT)) {- if (entry->mask & IT_ENTRY_INSTRUMENT)
- channel->instrument = entry->instrument;
- instrument_to_sample(sigdata, channel);
- if (channel->note <= 120) {- if ((sigdata->flags & IT_USE_INSTRUMENTS) && channel->sample == 0)
- it_retrigger_note(sigrenderer, channel); /* Stop the note */ /*return 1;*/
- if (entry->mask & IT_ENTRY_INSTRUMENT)
- get_default_volpan(sigdata, channel);
- } else
- it_retrigger_note(sigrenderer, channel); /* Stop the note */
- }
-
- /** WARNING: This is not ideal, since channel->playing might not get allocated owing to lack of memory... */
- if (((entry->mask & IT_ENTRY_VOLPAN) && entry->volpan >= 193 && entry->volpan <= 202) ||
- ((entry->mask & IT_ENTRY_EFFECT) && (entry->effect == IT_TONE_PORTAMENTO || entry->effect == IT_VOLSLIDE_TONEPORTA)))
- {- if (channel->playing && (entry->mask & IT_ENTRY_INSTRUMENT)) {- if (sigdata->flags & IT_COMPATIBLE_GXX)
- it_compatible_gxx_retrigger(sigdata, channel);
- else if ((!(sigdata->flags & IT_USE_INSTRUMENTS) ||
- (channel->instrument >= 1 && channel->instrument <= sigdata->n_instruments)) &&
- channel->sample != channel->playing->sampnum)
- {- unsigned char note = channel->playing->note;
- int slide = channel->playing->slide;
- it_retrigger_note(sigrenderer, channel);
- if (channel->playing) {- channel->playing->note = note;
- channel->playing->slide = slide;
- // Should we be preserving sample_vibrato_time? depth?
- }
- }
- }
-
- channel->toneporta = 0;
-
- if ((entry->mask & IT_ENTRY_VOLPAN) && entry->volpan >= 193 && entry->volpan <= 202) {- /* Tone Portamento in the volume column */
- static const unsigned char slidetable[] = {0, 1, 4, 8, 16, 32, 64, 96, 128, 255};- unsigned char v = slidetable[entry->volpan - 193];
- if (sigdata->flags & IT_COMPATIBLE_GXX) {- if (v == 0)
- v = channel->lastG;
- channel->lastG = v;
- } else {- if (v == 0)
- v = channel->lastEF;
- channel->lastEF = v;
- }
- channel->toneporta += v << 4;
- }
-
- if ((entry->mask & IT_ENTRY_EFFECT) && (entry->effect == IT_TONE_PORTAMENTO || entry->effect == IT_VOLSLIDE_TONEPORTA)) {- /* Tone Portamento in the effect column */
- unsigned char v;
- if (entry->effect == IT_TONE_PORTAMENTO)
- v = entry->effectvalue;
- else
- v = 0;
- if (sigdata->flags & IT_COMPATIBLE_GXX) {- if (v == 0)
- v = channel->lastG;
- channel->lastG = v;
- } else {- if (v == 0 && !(sigdata->flags & IT_WAS_A_669))
- v = channel->lastEF;
- channel->lastEF = v;
- }
- channel->toneporta += v << 4;
- }
-
- if ((entry->mask & IT_ENTRY_NOTE) || ((sigdata->flags & IT_COMPATIBLE_GXX) && (entry->mask & IT_ENTRY_INSTRUMENT))) {- if (channel->note <= 120) {- if (channel->sample)
- channel->destnote = channel->truenote;
- else
- channel->destnote = channel->note;
- }
- }
-
- if (channel->playing) goto skip_start_note;
- }
-
- if ((entry->mask & IT_ENTRY_NOTE) ||
- ((entry->mask & IT_ENTRY_INSTRUMENT) && (!channel->playing || entry->instrument != channel->playing->instnum)))
- {- if (channel->note <= 120) {- get_true_pan(sigdata, channel);
- if ((entry->mask & IT_ENTRY_NOTE) || !(sigdata->flags & (IT_WAS_AN_S3M|IT_WAS_A_PTM)))
- it_retrigger_note(sigrenderer, channel);
- }
- }
-
- skip_start_note:
-
- if (entry->mask & IT_ENTRY_VOLPAN) {- if (entry->volpan <= 64) {- /* Volume */
- channel->volume = entry->volpan;
- } else if (entry->volpan <= 74) {- /* Fine volume slide up */
- unsigned char v = entry->volpan - 65;
- if (v == 0)
- v = channel->lastvolslide;
- channel->lastvolslide = v;
- /* = effect DxF where x == entry->volpan - 65 */
- channel->volume += v;
- if (channel->volume > 64) channel->volume = 64;
- } else if (entry->volpan <= 84) {- /* Fine volume slide down */
- unsigned char v = entry->volpan - 75;
- if (v == 0)
- v = channel->lastvolslide;
- channel->lastvolslide = v;
- /* = effect DFx where x == entry->volpan - 75 */
- channel->volume -= v;
- if (channel->volume > 64) channel->volume = 0;
- } else if (entry->volpan < 128) {- /* Volume slide up */
- /* Volume slide down */
- /* Portamento down */
- /* Portamento up */
- } else if (entry->volpan <= 192) {- /* Pan */
- channel->pan = entry->volpan - 128;
- channel->truepan = channel->pan << IT_ENVELOPE_SHIFT;
- }
- /* else */
- /* Tone Portamento */
- /* Vibrato */
- }
- return 0;
-}
-
-
-
-static void retrigger_xm_envelopes(IT_PLAYING *playing)
-{- playing->volume_envelope.next_node = 0;
- playing->volume_envelope.tick = -1;
- playing->pan_envelope.next_node = 0;
- playing->pan_envelope.tick = -1;
- playing->fadeoutcount = 1024;
-}
-
-
-
-static void process_xm_note_data(DUMB_IT_SIGRENDERER *sigrenderer, IT_ENTRY *entry)
-{- DUMB_IT_SIGDATA *sigdata = sigrenderer->sigdata;
- IT_CHANNEL *channel = &sigrenderer->channel[(int)entry->channel];
- IT_PLAYING * playing = NULL;
-
- if (entry->mask & IT_ENTRY_INSTRUMENT) {- int oldsample = channel->sample;
- channel->inv_loop_offset = 0;
- channel->instrument = entry->instrument;
- instrument_to_sample(sigdata, channel);
- if (channel->playing &&
- !((entry->mask & IT_ENTRY_NOTE) && entry->note >= 120) &&
- !((entry->mask & IT_ENTRY_EFFECT) && entry->effect == IT_XM_KEY_OFF && entry->effectvalue == 0)) {- playing = dup_playing(channel->playing, channel, channel);
- if (!playing) return;
- if (!(sigdata->flags & IT_WAS_A_MOD)) {- /* Retrigger vol/pan envelopes if enabled, and cancel fadeout.
- * Also reset vol/pan to that of _original_ instrument.
- */
- channel->playing->flags &= ~(IT_PLAYING_SUSTAINOFF | IT_PLAYING_FADING);
- it_playing_update_resamplers(channel->playing);
-
- channel->volume = channel->playing->sample->default_volume;
- channel->truepan = 32 + channel->playing->sample->default_pan*64;
-
- retrigger_xm_envelopes(channel->playing);
- } else {- /* Switch if sample changed */
- if (oldsample != channel->sample) {- int i;
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (!sigrenderer->playing[i]) {- channel->playing->declick_stage = 3;
- sigrenderer->playing[i] = channel->playing;
- channel->playing = NULL;
- break;
- }
- }
-
- if (!channel->sample) {- if (channel->playing)
- {- free_playing(channel->playing);
- channel->playing = NULL;
- }
- } else {- if (channel->playing) {- free_playing(channel->playing);
- }
- channel->playing = playing;
- playing = NULL;
- channel->playing->declick_stage = 0;
- channel->playing->sampnum = channel->sample;
- channel->playing->sample = &sigdata->sample[channel->sample-1];
- it_playing_reset_resamplers(channel->playing, 0);
- }
- }
- get_default_volpan(sigdata, channel);
- }
- }
- }
-
- if (!((entry->mask & IT_ENTRY_EFFECT) && entry->effect == IT_XM_KEY_OFF && entry->effectvalue == 0) &&
- (entry->mask & IT_ENTRY_NOTE))
- {- if (!(entry->mask & IT_ENTRY_INSTRUMENT))
- instrument_to_sample(sigdata, channel);
-
- if (channel->note >= 120)
- xm_note_off(sigdata, channel);
- else if (channel->sample == 0) {- /** If we get here, one of the following is the case:
- ** 1. The instrument has never been specified on this channel.
- ** 2. The specified instrument is invalid.
- ** 3. The instrument has no sample mapped to the selected note.
- ** What should happen?
- **
- ** Experimentation shows that any existing note stops and cannot
- ** be brought back. A subsequent instrument change fixes that.
- **/
- if (channel->playing) {- int i;
- if (playing) {- free_playing(channel->playing);
- channel->playing = playing;
- playing = NULL;
- }
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (!sigrenderer->playing[i]) {- channel->playing->declick_stage = 3;
- sigrenderer->playing[i] = channel->playing;
- channel->playing = NULL;
- break;
- }
- }
- if (channel->playing) {- free_playing(channel->playing);
- channel->playing = NULL;
- }
- }
- if (playing) free_playing(playing);
- return;
- } else if (channel->playing && (entry->mask & IT_ENTRY_VOLPAN) && ((entry->volpan>>4) == 0xF)) {- /* Don't retrigger note; portamento in the volume column. */
- } else if (channel->playing &&
- (entry->mask & IT_ENTRY_EFFECT) &&
- (entry->effect == IT_TONE_PORTAMENTO ||
- entry->effect == IT_VOLSLIDE_TONEPORTA)) {- /* Don't retrigger note; portamento in the effects column. */
- } else {- channel->destnote = IT_NOTE_OFF;
-
- if (!channel->playing) {- channel->playing = new_playing();
- if (!channel->playing) {- if (playing) free_playing(playing);
- return;
- }
- // Adding the following seems to do the trick for the case where a piece starts with an instrument alone and then some notes alone.
- retrigger_xm_envelopes(channel->playing);
- }
- else if (playing) {- /* volume rampy stuff! move note to NNA */
- int i;
- IT_PLAYING * ptemp;
- if (playing->sample) ptemp = playing;
- else ptemp = channel->playing;
- if (!ptemp) {- if (playing) free_playing(playing);
- return;
- }
- playing = NULL;
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (!sigrenderer->playing[i]) {- ptemp->declick_stage = 3;
- ptemp->flags |= IT_PLAYING_SUSTAINOFF | IT_PLAYING_FADING;
- sigrenderer->playing[i] = ptemp;
- ptemp = NULL;
- break;
- }
- }
- if (ptemp) free_playing(ptemp);
- }
-
- channel->playing->flags = 0;
- channel->playing->resampling_quality = sigrenderer->resampling_quality;
- channel->playing->channel = channel;
- channel->playing->sample = &sigdata->sample[channel->sample-1];
- if (sigdata->flags & IT_USE_INSTRUMENTS)
- channel->playing->instrument = &sigdata->instrument[channel->instrument-1];
- else
- channel->playing->instrument = NULL;
- channel->playing->env_instrument = channel->playing->instrument;
- channel->playing->sampnum = channel->sample;
- channel->playing->instnum = channel->instrument;
- channel->playing->declick_stage = 0;
- channel->playing->channel_volume = channel->channelvolume;
- channel->playing->note = channel->truenote;
- channel->playing->enabled_envelopes = 0;
- channel->playing->volume_offset = 0;
- channel->playing->panning_offset = 0;
- //channel->playing->output = channel->output;
- if (sigdata->flags & IT_USE_INSTRUMENTS) {- IT_PLAYING * playing = channel->playing;
- IT_INSTRUMENT * instrument = playing->instrument;
- if (instrument->volume_envelope.flags & IT_ENVELOPE_ON) playing->enabled_envelopes |= IT_ENV_VOLUME;
- if (instrument->pan_envelope.flags & IT_ENVELOPE_ON) playing->enabled_envelopes |= IT_ENV_PANNING;
- //if (instrument->output) playing->output = instrument->output;
- }
- channel->playing->filter_cutoff = 127;
- channel->playing->filter_resonance = 0;
- channel->playing->true_filter_cutoff = 127 << 8;
- channel->playing->true_filter_resonance = 0;
- channel->playing->vibrato_speed = 0;
- channel->playing->vibrato_depth = 0;
- channel->playing->vibrato_n = 0;
- channel->playing->vibrato_time = 0;
- channel->playing->vibrato_waveform = 0;
- channel->playing->tremolo_speed = 0;
- channel->playing->tremolo_depth = 0;
- channel->playing->tremolo_time = 0;
- channel->playing->tremolo_waveform = 0;
- channel->playing->panbrello_speed = 0;
- channel->playing->panbrello_depth = 0;
- channel->playing->panbrello_time = 0;
- channel->playing->panbrello_waveform = 0;
- channel->playing->panbrello_random = 0;
- channel->playing->sample_vibrato_time = 0;
- channel->playing->sample_vibrato_waveform = channel->playing->sample->vibrato_waveform;
- channel->playing->sample_vibrato_depth = 0;
- channel->playing->slide = 0;
- channel->playing->finetune = channel->playing->sample->finetune;
- it_reset_filter_state(&channel->playing->filter_state[0]); // Are these
- it_reset_filter_state(&channel->playing->filter_state[1]); // necessary?
- it_playing_reset_resamplers(channel->playing, 0);
-
- /** WARNING - is everything initialised? */
- }
- }
-
- if (!((entry->mask & IT_ENTRY_EFFECT) && entry->effect == IT_XM_KEY_OFF && entry->effectvalue == 0) &&
- !((entry->mask & IT_ENTRY_NOTE) && entry->note >= 120) &&
- (entry->mask & (IT_ENTRY_NOTE | IT_ENTRY_INSTRUMENT)) == (IT_ENTRY_NOTE | IT_ENTRY_INSTRUMENT))
- {- if (channel->playing) retrigger_xm_envelopes(channel->playing);
- get_default_volpan(sigdata, channel);
- }
-
- if ((entry->mask & IT_ENTRY_VOLPAN) && ((entry->volpan>>4) == 0xF)) {- /* Tone Portamento */
- unsigned char v = (entry->volpan & 15) << 4;
- if (v == 0)
- v = channel->lastG;
- channel->lastG = v;
- if (entry->mask & IT_ENTRY_NOTE)
- if (channel->sample && channel->note < 120)
- channel->destnote = channel->truenote;
- channel->toneporta = v << 4;
- } else if ((entry->mask & IT_ENTRY_EFFECT) &&
- (entry->effect == IT_TONE_PORTAMENTO ||
- entry->effect == IT_VOLSLIDE_TONEPORTA)) {- unsigned char v;
- if (entry->effect == IT_TONE_PORTAMENTO)
- v = entry->effectvalue;
- else
- v = 0;
- if (v == 0)
- v = channel->lastG;
- channel->lastG = v;
- if (entry->mask & IT_ENTRY_NOTE)
- if (channel->sample && channel->note < 120)
- channel->destnote = channel->truenote;
- channel->toneporta = v << 4;
- }
-
- if (entry->mask & IT_ENTRY_VOLPAN) {- int effect = entry->volpan >> 4;
- int value = entry->volpan & 15;
- switch (effect) {- case 0x6: /* Volume slide down */
- channel->xm_volslide = -value;
- break;
- case 0x7: /* Volume slide up */
- channel->xm_volslide = value;
- break;
- case 0x8: /* Fine volume slide down */
- channel->volume -= value;
- if (channel->volume > 64) channel->volume = 0;
- break;
- case 0x9: /* Fine volume slide up */
- channel->volume += value;
- if (channel->volume > 64) channel->volume = 64;
- break;
- case 0xA: /* Set vibrato speed */
- if (value)
- channel->lastHspeed = value;
- if (channel->playing)
- channel->playing->vibrato_speed = channel->lastHspeed;
- break;
- case 0xB: /* Vibrato */
- if (value)
- channel->lastHdepth = value << 2; /** WARNING: correct ? */
- if (channel->playing) {- channel->playing->vibrato_depth = channel->lastHdepth;
- channel->playing->vibrato_speed = channel->lastHspeed;
- channel->playing->vibrato_n++;
- }
- break;
- case 0xC: /* Set panning */
- channel->truepan = 32 + value*(17*64);
- break;
- case 0xD: /* Pan slide left */
- /* -128 is a special case for emulating a 'feature' in FT2.
- * As soon as effects are processed, it goes hard left.
- */
- channel->panslide = value ? -value : -128;
- break;
- case 0xE: /* Pan slide Right */
- channel->panslide = value;
- break;
- case 0xF: /* Tone porta */
- break;
- default: /* Volume */
- channel->volume = entry->volpan - 0x10;
- break;
- }
- }
-
- if (playing) free_playing(playing);
-}
-
-
-
-/* This function assumes !IT_IS_END_ROW(entry). */
-static int process_note_data(DUMB_IT_SIGRENDERER *sigrenderer, IT_ENTRY *entry, int ignore_cxx)
-{- DUMB_IT_SIGDATA *sigdata = sigrenderer->sigdata;
-
- if (sigdata->flags & IT_WAS_AN_XM)
- process_xm_note_data(sigrenderer, entry);
- else
- if (process_it_note_data(sigrenderer, entry)) return 0;
-
- return process_effects(sigrenderer, entry, ignore_cxx);
-}
-
-
-
-static int process_entry(DUMB_IT_SIGRENDERER *sigrenderer, IT_ENTRY *entry, int ignore_cxx)
-{- IT_CHANNEL *channel = &sigrenderer->channel[(int)entry->channel];
-
- if (entry->mask & IT_ENTRY_NOTE)
- channel->note = entry->note;
-
- if ((entry->mask & (IT_ENTRY_NOTE|IT_ENTRY_EFFECT)) && (sigrenderer->sigdata->flags & IT_WAS_A_669)) {- reset_channel_effects(channel);
- // XXX unknown
- if (channel->playing) channel->playing->finetune = 0;
- }
-
- if ((entry->mask & IT_ENTRY_EFFECT) && entry->effect == IT_S) {- /* channel->lastS was set in update_pattern_variables(). */
- unsigned char effectvalue = channel->lastS;
- if (effectvalue >> 4 == IT_S_NOTE_DELAY) {- channel->note_delay_count = effectvalue & 15;
- if (channel->note_delay_count == 0)
- channel->note_delay_count = 1;
- channel->note_delay_entry = entry;
- return 0;
- }
- }
-
- return process_note_data(sigrenderer, entry, ignore_cxx);
-}
-
-
-
-static void update_tick_counts(DUMB_IT_SIGRENDERER *sigrenderer)
-{- int i;
-
- for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {- IT_CHANNEL *channel = &sigrenderer->channel[i];
-
- if (channel->key_off_count) {- channel->key_off_count--;
- if (channel->key_off_count == 0)
- xm_note_off(sigrenderer->sigdata, channel);
- } else if (channel->note_cut_count) {- channel->note_cut_count--;
- if (channel->note_cut_count == 0) {- if (sigrenderer->sigdata->flags & (IT_WAS_AN_XM | IT_WAS_A_PTM))
- channel->volume = 0;
- else if (channel->playing) {- int i;
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (!sigrenderer->playing[i]) {- channel->playing->declick_stage = 3;
- sigrenderer->playing[i] = channel->playing;
- channel->playing = NULL;
- break;
- }
- }
- if (channel->playing) {- free_playing(channel->playing);
- channel->playing = NULL;
- }
- }
- }
- } else if (channel->note_delay_count) {- channel->note_delay_count--;
- if (channel->note_delay_count == 0)
- process_note_data(sigrenderer, channel->note_delay_entry, 0);
- /* Don't bother checking the return value; if the note
- * was delayed, there can't have been a speed=0.
- */
- }
- }
-}
-
-
-
-static int envelope_get_y(IT_ENVELOPE *envelope, IT_PLAYING_ENVELOPE *pe)
-{-#if 1
- (void)envelope; //TODO: remove the parameter
- return pe->value;
-#else
- int ys, ye;
- int ts, te;
- int t;
-
- if (pe->next_node <= 0)
- return envelope->node_y[0] << IT_ENVELOPE_SHIFT;
-
- if (pe->next_node >= envelope->n_nodes)
- return envelope->node_y[envelope->n_nodes-1] << IT_ENVELOPE_SHIFT;
-
- ys = envelope->node_y[pe->next_node-1] << IT_ENVELOPE_SHIFT;
- ts = envelope->node_t[pe->next_node-1];
- te = envelope->node_t[pe->next_node];
-
- if (ts == te)
- return ys;
-
- ye = envelope->node_y[pe->next_node] << IT_ENVELOPE_SHIFT;
-
- t = pe->tick;
-
- return ys + (ye - ys) * (t - ts) / (te - ts);
-#endif
-}
-
-
-
-#if 0
-static int it_envelope_end(IT_PLAYING *playing, IT_ENVELOPE *envelope, IT_PLAYING_ENVELOPE *pe)
-{- if (pe->next_node >= envelope->n_nodes)
- return 1;
-
- if (pe->tick < envelope->node_t[pe->next_node]) return 0;
-
- if ((envelope->flags & IT_ENVELOPE_LOOP_ON) &&
- envelope->loop_end >= pe->next_node &&
- envelope->node_t[envelope->loop_end] <= pe->tick) return 0;
-
- if ((envelope->flags & IT_ENVELOPE_SUSTAIN_LOOP) &&
- !(playing->flags & IT_PLAYING_SUSTAINOFF) &&
- envelope->sus_loop_end >= pe->next_node &&
- envelope->node_t[envelope->sus_loop_end] <= pe->tick) return 0;
-
- if (envelope->node_t[envelope->n_nodes-1] <= pe->tick) return 1;
-
- return 0;
-}
-#endif
-
-
-
-/* Returns 1 when fading should be initiated for a volume envelope. */
-static int update_it_envelope(IT_PLAYING *playing, IT_ENVELOPE *envelope, IT_PLAYING_ENVELOPE *pe, int flags)
-{- if (!(playing->enabled_envelopes & flags) || !envelope->n_nodes)
- return 0;
-
- ASSERT(envelope->n_nodes > 0);
-
- if (pe->tick <= 0)
- pe->value = envelope->node_y[0] << IT_ENVELOPE_SHIFT;
- else if (pe->tick >= envelope->node_t[envelope->n_nodes-1]) {- pe->value = envelope->node_y[envelope->n_nodes-1] << IT_ENVELOPE_SHIFT;
- } else {- int ys = envelope->node_y[pe->next_node-1] << IT_ENVELOPE_SHIFT;
- int ts = envelope->node_t[pe->next_node-1];
- int te = envelope->node_t[pe->next_node];
-
- if (ts == te)
- pe->value = ys;
- else {- int ye = envelope->node_y[pe->next_node] << IT_ENVELOPE_SHIFT;
- int t = pe->tick;
-
- pe->value = ys + (ye - ys) * (t - ts) / (te - ts);
- }
- }
-
- pe->tick++;
-
- recalculate_it_envelope_node(pe, envelope);
-
- if ((envelope->flags & IT_ENVELOPE_SUSTAIN_LOOP) && !(playing->flags & IT_PLAYING_SUSTAINOFF)) {- if (pe->tick > envelope->node_t[envelope->sus_loop_end]) {- pe->next_node = envelope->sus_loop_start + 1;
- ASSERT(pe->next_node <= envelope->n_nodes);
- pe->tick = envelope->node_t[envelope->sus_loop_start];
- return 0;
- }
- } else if (envelope->flags & IT_ENVELOPE_LOOP_ON) {- if (pe->tick > envelope->node_t[envelope->loop_end]) {- pe->next_node = envelope->loop_start + 1;
- ASSERT(pe->next_node <= envelope->n_nodes);
- pe->tick = envelope->node_t[envelope->loop_start];
- return 0;
- }
- }
- else if (pe->tick > envelope->node_t[envelope->n_nodes - 1])
- return 1;
-
- return 0;
-}
-
-
-
-static void update_it_envelopes(IT_PLAYING *playing)
-{- IT_ENVELOPE *envelope = &playing->env_instrument->volume_envelope;
- IT_PLAYING_ENVELOPE *pe = &playing->volume_envelope;
-
- if (update_it_envelope(playing, envelope, pe, IT_ENV_VOLUME)) {- playing->flags |= IT_PLAYING_FADING;
- if (pe->value == 0)
- playing->flags |= IT_PLAYING_DEAD;
- }
-
- update_it_envelope(playing, &playing->env_instrument->pan_envelope, &playing->pan_envelope, IT_ENV_PANNING);
- update_it_envelope(playing, &playing->env_instrument->pitch_envelope, &playing->pitch_envelope, IT_ENV_PITCH);
-}
-
-
-
-static int xm_envelope_is_sustaining(IT_PLAYING *playing, IT_ENVELOPE *envelope, IT_PLAYING_ENVELOPE *pe)
-{- if ((envelope->flags & IT_ENVELOPE_SUSTAIN_LOOP) && !(playing->flags & IT_PLAYING_SUSTAINOFF))
- if (envelope->sus_loop_start < envelope->n_nodes)
- if (pe->tick == envelope->node_t[envelope->sus_loop_start])
- return 1;
- return 0;
-}
-
-
-
-static void update_xm_envelope(IT_PLAYING *playing, IT_ENVELOPE *envelope, IT_PLAYING_ENVELOPE *pe)
-{- if (!(envelope->flags & IT_ENVELOPE_ON))
- return;
-
- if (xm_envelope_is_sustaining(playing, envelope, pe))
- return;
-
- if (pe->tick >= envelope->node_t[envelope->n_nodes-1])
- return;
-
- pe->tick++;
-
- /* pe->next_node must be kept up to date for envelope_get_y(). */
- while (pe->tick > envelope->node_t[pe->next_node])
- pe->next_node++;
-
- if ((envelope->flags & IT_ENVELOPE_LOOP_ON) && envelope->loop_end < envelope->n_nodes) {- if (pe->tick == envelope->node_t[envelope->loop_end]) {- pe->next_node = MID(0, envelope->loop_start, envelope->n_nodes - 1);
- pe->tick = envelope->node_t[pe->next_node];
- }
- }
-
- xm_envelope_calculate_value(envelope, pe);
-}
-
-
-
-static void update_xm_envelopes(IT_PLAYING *playing)
-{- update_xm_envelope(playing, &playing->env_instrument->volume_envelope, &playing->volume_envelope);
- update_xm_envelope(playing, &playing->env_instrument->pan_envelope, &playing->pan_envelope);
-}
-
-
-
-static void update_fadeout(DUMB_IT_SIGDATA *sigdata, IT_PLAYING *playing)
-{- if (playing->flags & IT_PLAYING_FADING) {- playing->fadeoutcount -= playing->env_instrument->fadeout;
- if (playing->fadeoutcount <= 0) {- playing->fadeoutcount = 0;
- if (!(sigdata->flags & IT_WAS_AN_XM))
- playing->flags |= IT_PLAYING_DEAD;
- }
- }
-}
-
-static int apply_pan_envelope(IT_PLAYING *playing);
-static float calculate_volume(DUMB_IT_SIGRENDERER *sigrenderer, IT_PLAYING *playing, float volume);
-
-static void playing_volume_setup(DUMB_IT_SIGRENDERER * sigrenderer, IT_PLAYING * playing, float invt2g)
-{- DUMB_IT_SIGDATA * sigdata = sigrenderer->sigdata;
- int pan;
- float vol, span;
- float rampScale;
- int ramp_style = sigrenderer->ramp_style;
-
- pan = apply_pan_envelope(playing);
-
- if ((sigrenderer->n_channels >= 2) && (sigdata->flags & IT_STEREO) && (sigrenderer->n_channels != 3 || !IT_IS_SURROUND_SHIFTED(pan))) {- if (!IT_IS_SURROUND_SHIFTED(pan)) {- span = (pan - (32<<8)) * sigdata->pan_separation * (1.0f / ((32<<8) * 128));
- vol = 0.5f * (1.0f - span);
- playing->float_volume[0] = vol;
- playing->float_volume[1] = 1.0f - vol;
- } else {- playing->float_volume[0] = -0.5f;
- playing->float_volume[1] = 0.5f;
- }
- } else {- playing->float_volume[0] = 1.0f;
- playing->float_volume[1] = 1.0f;
- }
-
- vol = calculate_volume(sigrenderer, playing, 1.0f);
- playing->float_volume[0] *= vol;
- playing->float_volume[1] *= vol;
-
- rampScale = 4;
-
- if (ramp_style > 0 && playing->declick_stage == 2) {- if ((playing->ramp_volume[0] == 0 && playing->ramp_volume[1] == 0) || vol == 0)
- rampScale = 48;
- }
-
- if (ramp_style == 0 || (ramp_style < 2 && playing->declick_stage == 2)) {- if (playing->declick_stage <= 2) {- playing->ramp_volume[0] = playing->float_volume[0];
- playing->ramp_volume[1] = playing->float_volume[1];
- playing->declick_stage = 2;
- } else {- playing->float_volume[0] = 0;
- playing->float_volume[1] = 0;
- playing->ramp_volume[0] = 0;
- playing->ramp_volume[1] = 0;
- playing->declick_stage = 5;
- }
- playing->ramp_delta[0] = 0;
- playing->ramp_delta[1] = 0;
- } else {- if (playing->declick_stage == 0) {- playing->ramp_volume[0] = 0;
- playing->ramp_volume[1] = 0;
- rampScale = 48;
- playing->declick_stage++;
- } else if (playing->declick_stage == 1) {- rampScale = 48;
- } else if (playing->declick_stage >= 3) {- playing->float_volume[0] = 0;
- playing->float_volume[1] = 0;
- if (playing->declick_stage == 3)
- playing->declick_stage++;
- rampScale = 48;
- }
- playing->ramp_delta[0] = rampScale * invt2g * (playing->float_volume[0] - playing->ramp_volume[0]);
- playing->ramp_delta[1] = rampScale * invt2g * (playing->float_volume[1] - playing->ramp_volume[1]);
- }
-}
-
-static void process_playing(DUMB_IT_SIGRENDERER *sigrenderer, IT_PLAYING *playing, float invt2g)
-{- DUMB_IT_SIGDATA * sigdata = sigrenderer->sigdata;
-
- if (playing->instrument) {- if (sigdata->flags & IT_WAS_AN_XM)
- update_xm_envelopes(playing);
- else
- update_it_envelopes(playing);
- update_fadeout(sigdata, playing);
- }
-
- playing_volume_setup(sigrenderer, playing, invt2g);
-
- if (sigdata->flags & IT_WAS_AN_XM) {- /* 'depth' is used to store the tick number for XM files. */
- if (playing->sample_vibrato_depth < playing->sample->vibrato_rate)
- playing->sample_vibrato_depth++;
- } else {- playing->sample_vibrato_depth += playing->sample->vibrato_rate;
- if (playing->sample_vibrato_depth > playing->sample->vibrato_depth << 8)
- playing->sample_vibrato_depth = playing->sample->vibrato_depth << 8;
- }
-
- playing->sample_vibrato_time += playing->sample->vibrato_speed;
-}
-
-#if (defined(_MSC_VER) && _MSC_VER < 1800) || defined(__ANDROID__)
-static float log2(float x) {return (float)log(x)/(float)log(2.0f);}-#endif
-
-static int delta_to_note(float delta, int base)
-{- float note;
- note = log2(delta * 65536.f / (float)base)*12.0f+60.5f;
- if (note > 119) note = 119;
- else if (note < 0) note = 0;
- return (int)note;
-}
-
-// Period table for Protracker octaves 0-5:
-#if 0
-static const unsigned short ProTrackerPeriodTable[6*12] =
-{- 1712,1616,1524,1440,1356,1280,1208,1140,1076,1016,960,907,
- 856,808,762,720,678,640,604,570,538,508,480,453,
- 428,404,381,360,339,320,302,285,269,254,240,226,
- 214,202,190,180,170,160,151,143,135,127,120,113,
- 107,101,95,90,85,80,75,71,67,63,60,56,
- 53,50,47,45,42,40,37,35,33,31,30,28
-};
-
-
-static const unsigned short ProTrackerTunedPeriods[16*12] =
-{- 1712,1616,1524,1440,1356,1280,1208,1140,1076,1016,960,907,
- 1700,1604,1514,1430,1348,1274,1202,1134,1070,1010,954,900,
- 1688,1592,1504,1418,1340,1264,1194,1126,1064,1004,948,894,
- 1676,1582,1492,1408,1330,1256,1184,1118,1056,996,940,888,
- 1664,1570,1482,1398,1320,1246,1176,1110,1048,990,934,882,
- 1652,1558,1472,1388,1310,1238,1168,1102,1040,982,926,874,
- 1640,1548,1460,1378,1302,1228,1160,1094,1032,974,920,868,
- 1628,1536,1450,1368,1292,1220,1150,1086,1026,968,914,862,
- 1814,1712,1616,1524,1440,1356,1280,1208,1140,1076,1016,960,
- 1800,1700,1604,1514,1430,1350,1272,1202,1134,1070,1010,954,
- 1788,1688,1592,1504,1418,1340,1264,1194,1126,1064,1004,948,
- 1774,1676,1582,1492,1408,1330,1256,1184,1118,1056,996,940,
- 1762,1664,1570,1482,1398,1320,1246,1176,1110,1048,988,934,
- 1750,1652,1558,1472,1388,1310,1238,1168,1102,1040,982,926,
- 1736,1640,1548,1460,1378,1302,1228,1160,1094,1032,974,920,
- 1724,1628,1536,1450,1368,1292,1220,1150,1086,1026,968,914
-};
-#endif
-
-static void process_all_playing(DUMB_IT_SIGRENDERER *sigrenderer)
-{- DUMB_IT_SIGDATA *sigdata = sigrenderer->sigdata;
- int i;
-
- float invt2g = 1.0f / ((float)TICK_TIME_DIVIDEND / (float)sigrenderer->tempo / 256.0f);
-
- for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {- IT_CHANNEL *channel = &sigrenderer->channel[i];
- IT_PLAYING *playing = channel->playing;
-
- if (playing) {- int vibrato_shift;
- switch (playing->vibrato_waveform)
- {- default:
- vibrato_shift = it_sine[playing->vibrato_time];
- break;
- case 1:
- vibrato_shift = it_sawtooth[playing->vibrato_time];
- break;
- case 2:
- vibrato_shift = it_squarewave[playing->vibrato_time];
- break;
- case 3:
- vibrato_shift = (rand() % 129) - 64;
- break;
- case 4:
- vibrato_shift = it_xm_squarewave[playing->vibrato_time];
- break;
- case 5:
- vibrato_shift = it_xm_ramp[playing->vibrato_time];
- break;
- case 6:
- vibrato_shift = it_xm_ramp[255-playing->vibrato_time];
- break;
- }
- vibrato_shift *= playing->vibrato_n;
- vibrato_shift *= playing->vibrato_depth;
- vibrato_shift >>= 4;
-
- if (sigdata->flags & IT_OLD_EFFECTS)
- vibrato_shift = -vibrato_shift;
-
- playing->volume = channel->volume;
- playing->pan = channel->truepan;
-
- if (playing->volume_offset) {- playing->volume += (playing->volume_offset * playing->volume) >> 7;
- if (playing->volume > 64) {- if (playing->volume_offset < 0) playing->volume = 0;
- else playing->volume = 64;
- }
- }
-
- if (playing->panning_offset && !IT_IS_SURROUND_SHIFTED(playing->pan)) {- playing->pan += playing->panning_offset << IT_ENVELOPE_SHIFT;
- if (playing->pan > 64 << IT_ENVELOPE_SHIFT) {- if (playing->panning_offset < 0) playing->pan = 0;
- else playing->pan = 64 << IT_ENVELOPE_SHIFT;
- }
- }
-
- if (sigdata->flags & IT_LINEAR_SLIDES) {- int currpitch = ((playing->note - 60) << 8) + playing->slide
- + vibrato_shift
- + playing->finetune;
-
- /* We add a feature here, which is that of keeping the pitch
- * within range. Otherwise it crashes. Trust me. It happened.
- * The limit 32768 gives almost 11 octaves either way.
- */
- if (currpitch < -32768)
- currpitch = -32768;
- else if (currpitch > 32767)
- currpitch = 32767;
-
- playing->delta = (float)pow(DUMB_PITCH_BASE, currpitch);
- playing->delta *= playing->sample->C5_speed * (1.f / 65536.0f);
- } else {- int slide = playing->slide + vibrato_shift;
-
- playing->delta = (float)pow(DUMB_PITCH_BASE, ((60 - playing->note) << 8) - playing->finetune );
- /* playing->delta is 1.0 for C-5, 0.5 for C-6, etc. */
-
- playing->delta *= 1.0f / playing->sample->C5_speed;
-
- playing->delta -= slide / AMIGA_DIVISOR;
-
- if (playing->delta < (1.0f / 65536.0f) / 32768.0f) {- // Should XM notes die if Amiga slides go out of range?
- playing->flags |= IT_PLAYING_DEAD;
- playing->delta = 1. / 32768.;
- continue;
- }
-
- playing->delta = (1.0f / 65536.0f) / playing->delta;
- }
-
- if (playing->channel->glissando && playing->channel->toneporta && playing->channel->destnote < 120) {- playing->delta = (float)pow(DUMB_SEMITONE_BASE, delta_to_note(playing->delta, (int)playing->sample->C5_speed) - 60)
- * playing->sample->C5_speed * (1.f / 65536.f);
- }
-
- /*
- if ( channel->arpeggio ) { // another FT2 bug...- if ((sigdata->flags & (IT_LINEAR_SLIDES|IT_WAS_AN_XM|IT_WAS_A_MOD)) == (IT_WAS_AN_XM|IT_LINEAR_SLIDES) &&
- playing->flags & IT_PLAYING_SUSTAINOFF)
- {- if ( channel->arpeggio > 0xFF )
- playing->delta = playing->sample->C5_speed * (1.f / 65536.f);
- }
- else*/
- {- int tick = sigrenderer->tick - 1;
- if ((sigrenderer->sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_MOD))!=IT_WAS_AN_XM)
- tick = sigrenderer->speed - tick - 1;
- else if (tick == sigrenderer->speed - 1)
- tick = 0;
- else
- ++tick;
- playing->delta *= (float)pow(DUMB_SEMITONE_BASE, channel->arpeggio_offsets[channel->arpeggio_table[tick&31]]);
- }
- /*
- }*/
-
- playing->filter_cutoff = channel->filter_cutoff;
- playing->filter_resonance = channel->filter_resonance;
- }
- }
-
- for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {- if (sigrenderer->channel[i].playing) {- process_playing(sigrenderer, sigrenderer->channel[i].playing, invt2g);
- if (!(sigdata->flags & IT_WAS_AN_XM)) {- //if ((sigrenderer->channel[i].playing->flags & (IT_PLAYING_BACKGROUND | IT_PLAYING_DEAD)) == (IT_PLAYING_BACKGROUND | IT_PLAYING_DEAD)) {- // This change was made so Gxx would work correctly when a note faded out or whatever. Let's hope nothing else was broken by it.
- if (sigrenderer->channel[i].playing->flags & IT_PLAYING_DEAD) {- free_playing(sigrenderer->channel[i].playing);
- sigrenderer->channel[i].playing = NULL;
- }
- }
- }
- }
-
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (sigrenderer->playing[i]) {- process_playing(sigrenderer, sigrenderer->playing[i], invt2g);
- if (sigrenderer->playing[i]->flags & IT_PLAYING_DEAD) {- free_playing(sigrenderer->playing[i]);
- sigrenderer->playing[i] = NULL;
- }
- }
- }
-}
-
-
-
-static int process_tick(DUMB_IT_SIGRENDERER *sigrenderer)
-{- DUMB_IT_SIGDATA *sigdata = sigrenderer->sigdata;
-
- // Set note vol/freq to vol/freq set for each channel
-
- if (sigrenderer->speed && --sigrenderer->tick == 0) {- reset_tick_counts(sigrenderer);
- sigrenderer->tick = sigrenderer->speed;
- sigrenderer->rowcount--;
- if (sigrenderer->rowcount == 0) {- sigrenderer->rowcount = 1;
-
-#ifdef BIT_ARRAY_BULLSHIT
- if (sigrenderer->n_rows)
- {-#if 1
- /*
- if (bit_array_test(sigrenderer->played, sigrenderer->order * 256 + sigrenderer->row))
- {- if (sigrenderer->callbacks->loop) {- if ((*sigrenderer->callbacks->loop)(sigrenderer->callbacks->loop_data))
- return 1;
- bit_array_reset(sigrenderer->played);
- if (sigrenderer->speed == 0)
- goto speed0; I love goto
- }
- }
- */
-#endif
- bit_array_set(sigrenderer->played, sigrenderer->order * 256 + sigrenderer->row);
- {- int n;
- for (n = 0; n < DUMB_IT_N_CHANNELS; n++)
- {- IT_CHANNEL * channel = &sigrenderer->channel[n];
- if (channel->played_patjump)
- {- if (channel->played_patjump_order == sigrenderer->order)
- {- bit_array_set(channel->played_patjump, sigrenderer->row);
- }
- /*
- else if ((channel->played_patjump_order & 0x7FFF) == sigrenderer->order)
- {- channel->played_patjump_order |= 0x4000;
- }
- else if ((channel->played_patjump_order & 0x3FFF) == sigrenderer->order)
- {- if ((sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_MOD)) == IT_WAS_AN_XM)
- {- joy, was XM, pattern loop bug triggered break to row in same order
- bit_array_mask(sigrenderer->played, channel->played_patjump, sigrenderer->order * 256);
- }
- bit_array_destroy(channel->played_patjump);
- channel->played_patjump = 0;
- channel->played_patjump_order = 0xFFFE;
- }
- */
- else
- {- bit_array_destroy(channel->played_patjump);
- channel->played_patjump = 0;
- channel->played_patjump_order = 0xFFFE;
- }
- }
- }
- }
- }
-#endif
-
- sigrenderer->processrow++;
-
- if (sigrenderer->processrow >= sigrenderer->n_rows) {- IT_PATTERN *pattern;
- int n;
- int processorder = sigrenderer->processorder;
-
- if ((sigrenderer->processrow|0xC00) == 0xFFFE + 1) { /* It was incremented above! */- sigrenderer->processrow = sigrenderer->breakrow;
- sigrenderer->breakrow = 0;
- for (n = 0; n < DUMB_IT_N_CHANNELS; n++) sigrenderer->channel[n].pat_loop_end_row = 0;
- } else {- sigrenderer->processrow = sigrenderer->breakrow;
- sigrenderer->breakrow = 0; // XXX lolwut
- }
-
- if (sigrenderer->processorder == 0xFFFF)
- sigrenderer->processorder = sigrenderer->order - 1;
-
- for (;;) {- sigrenderer->processorder++;
-
- if (sigrenderer->processorder >= sigdata->n_orders) {- sigrenderer->processorder = sigrenderer->restart_position;
- if (sigrenderer->processorder >= sigdata->n_orders) {- /* Restarting beyond end. We'll loop for now. */
- sigrenderer->processorder = -1;
- continue;
- }
- if (sigdata->flags & IT_WAS_AN_OKT) {- /* Reset some things */
- sigrenderer->speed = sigdata->speed;
- sigrenderer->tempo = sigdata->tempo;
- for (n = 0; n < DUMB_IT_N_CHANNELS; n++) {- xm_note_off(sigdata, &sigrenderer->channel[n]);
- }
- }
- }
-
- n = sigdata->order[sigrenderer->processorder];
-
- if (n < sigdata->n_patterns)
- break;
-
-#ifdef INVALID_ORDERS_END_SONG
- if (n != IT_ORDER_SKIP)
-#else
- if (n == IT_ORDER_END)
-#endif
- {- sigrenderer->processorder = sigrenderer->restart_position - 1;
- }
-
-#ifdef BIT_ARRAY_BULLSHIT
- /* Fix play tracking and timekeeping for orders containing skip commands */
- for (n = 0; n < 256; n++) {- bit_array_set(sigrenderer->played, sigrenderer->processorder * 256 + n);
- timekeeping_array_push(sigrenderer->row_timekeeper, sigrenderer->processorder * 256 + n, sigrenderer->time_played);
- timekeeping_array_bump(sigrenderer->row_timekeeper, sigrenderer->processorder * 256 + n);
- }
-#endif
- }
-
- pattern = &sigdata->pattern[n];
-
- n = sigrenderer->n_rows;
- sigrenderer->n_rows = pattern->n_rows;
-
- if (sigrenderer->processrow >= sigrenderer->n_rows)
- sigrenderer->processrow = 0;
-
-/** WARNING - everything pertaining to a new pattern initialised? */
-
- sigrenderer->entry = sigrenderer->entry_start = pattern->entry;
- sigrenderer->entry_end = sigrenderer->entry + pattern->n_entries;
-
- /* If n_rows was 0, we're only just starting. Don't do anything weird here. */
- /* added: process row check, for break to row spooniness */
- if (n && (processorder == 0xFFFF ? sigrenderer->order > sigrenderer->processorder : sigrenderer->order >= sigrenderer->processorder)
-#ifdef BIT_ARRAY_BULLSHIT
- && bit_array_test(sigrenderer->played, sigrenderer->processorder * 256 + sigrenderer->processrow)
-#endif
- ) {-#ifdef BIT_ARRAY_BULLSHIT
- sigrenderer->looped = 1;
-#endif
- if (sigrenderer->callbacks->loop) {- if ((*sigrenderer->callbacks->loop)(sigrenderer->callbacks->loop_data))
- return 1;
-#ifdef BIT_ARRAY_BULLSHIT
- bit_array_reset(sigrenderer->played);
-#endif
- if (sigrenderer->speed == 0)
- goto speed0; /* I love goto */
- }
- }
- sigrenderer->order = sigrenderer->processorder;
-
- n = sigrenderer->processrow;
- while (n) {- while (sigrenderer->entry < sigrenderer->entry_end) {- if (IT_IS_END_ROW(sigrenderer->entry)) {- sigrenderer->entry++;
- break;
- }
- sigrenderer->entry++;
- }
- n--;
- }
- sigrenderer->row = sigrenderer->processrow;
- } else {- if (sigrenderer->entry) {- while (sigrenderer->entry < sigrenderer->entry_end) {- if (IT_IS_END_ROW(sigrenderer->entry)) {- sigrenderer->entry++;
- break;
- }
- sigrenderer->entry++;
- }
- sigrenderer->row++;
- } else {-#ifdef BIT_ARRAY_BULLSHIT
- bit_array_clear(sigrenderer->played, sigrenderer->order * 256);
-#endif
- sigrenderer->entry = sigrenderer->entry_start;
- sigrenderer->row = 0;
- }
- }
-
-#ifdef BIT_ARRAY_BULLSHIT
- if (sigrenderer->looped == 0) {- timekeeping_array_push(sigrenderer->row_timekeeper, sigrenderer->order * 256 + sigrenderer->row, sigrenderer->time_played);
- }
- timekeeping_array_bump(sigrenderer->row_timekeeper, sigrenderer->order * 256 + sigrenderer->row);
-#endif
-
- if (!(sigdata->flags & IT_WAS_A_669))
- reset_effects(sigrenderer);
-
- {- IT_ENTRY *entry = sigrenderer->entry;
- int ignore_cxx = 0;
-
- while (entry < sigrenderer->entry_end && !IT_IS_END_ROW(entry))
- ignore_cxx |= update_pattern_variables(sigrenderer, entry++);
-
- entry = sigrenderer->entry;
-
- while (entry < sigrenderer->entry_end && !IT_IS_END_ROW(entry))
- if (process_entry(sigrenderer, entry++, sigdata->flags & IT_WAS_AN_XM ? 0 : ignore_cxx))
- return 1;
- }
-
- if (sigdata->flags & IT_WAS_AN_OKT)
- update_effects(sigrenderer);
- else if (!(sigdata->flags & IT_OLD_EFFECTS))
- update_smooth_effects(sigrenderer);
- } else {- {- IT_ENTRY *entry = sigrenderer->entry;
-
- while (entry < sigrenderer->entry_end && !IT_IS_END_ROW(entry)) {- if (entry->mask & IT_ENTRY_EFFECT && entry->effect != IT_SET_SAMPLE_OFFSET)
- process_effects(sigrenderer, entry, 0);
- /* Don't bother checking the return value; if there
- * was a pattern delay, there can't be a speed=0.
- */
- entry++;
- }
- }
-
- update_effects(sigrenderer);
- }
- } else {- if ( !(sigdata->flags & IT_WAS_AN_STM) || !(sigrenderer->tick & 15)) {- speed0:
- update_effects(sigrenderer);
- update_tick_counts(sigrenderer);
- }
- }
-
- if (sigrenderer->globalvolume == 0) {- if (sigrenderer->callbacks->global_volume_zero) {- LONG_LONG t = sigrenderer->gvz_sub_time + ((TICK_TIME_DIVIDEND / (sigrenderer->tempo << 8)) << 16);
- sigrenderer->gvz_time += (int)(t >> 16);
- sigrenderer->gvz_sub_time = (int)t & 65535;
- if (sigrenderer->gvz_time >= 65536 * 12) {-#ifdef BIT_ARRAY_BULLSHIT
- sigrenderer->looped = 1;
-#endif
- if ((*sigrenderer->callbacks->global_volume_zero)(sigrenderer->callbacks->global_volume_zero_data))
- return 1;
- }
- }
- } else {- if (sigrenderer->callbacks->global_volume_zero) {- sigrenderer->gvz_time = 0;
- sigrenderer->gvz_sub_time = 0;
- }
- }
-
- process_all_playing(sigrenderer);
-
- {- LONG_LONG t = (TICK_TIME_DIVIDEND / (sigrenderer->tempo << 8)) << 16;
- if ( sigrenderer->sigdata->flags & IT_WAS_AN_STM ) {- t /= 16;
- }
- t += sigrenderer->sub_time_left;
- sigrenderer->time_left += (int)(t >> 16);
- sigrenderer->sub_time_left = (int)t & 65535;
- }
-
- return 0;
-}
-
-
-
-int dumb_it_max_to_mix = 64;
-
-#if 0
-static const int aiMODVol[] =
-{- 0,
- 16, 24, 32, 48, 64, 80, 96, 112,
- 128, 144, 160, 176, 192, 208, 224, 240,
- 256, 272, 288, 304, 320, 336, 352, 368,
- 384, 400, 416, 432, 448, 464, 480, 496,
- 529, 545, 561, 577, 593, 609, 625, 641,
- 657, 673, 689, 705, 721, 737, 753, 769,
- 785, 801, 817, 833, 849, 865, 881, 897,
- 913, 929, 945, 961, 977, 993, 1009, 1024
-};
-#endif
-
-static const int aiPTMVolScaled[] =
-{- 0,
- 31, 54, 73, 96, 111, 130, 153, 172,
- 191, 206, 222, 237, 252, 275, 298, 317,
- 336, 351, 370, 386, 401, 416, 428, 443,
- 454, 466, 477, 489, 512, 531, 553, 573,
- 592, 611, 626, 645, 660, 679, 695, 710,
- 725, 740, 756, 767, 782, 798, 809, 820,
- 836, 847, 859, 870, 881, 897, 908, 916,
- 927, 939, 950, 962, 969, 983, 1005, 1024
-};
-
-static float calculate_volume(DUMB_IT_SIGRENDERER *sigrenderer, IT_PLAYING *playing, float volume)
-{- if (volume != 0) {- int vol;
-
- if (playing->channel->flags & IT_CHANNEL_MUTED)
- return 0;
-
- if ((playing->channel->tremor_time & 192) == 128)
- return 0;
-
- switch (playing->tremolo_waveform)
- {- default:
- vol = it_sine[playing->tremolo_time];
- break;
- case 1:
- vol = it_sawtooth[playing->tremolo_time];
- break;
- case 2:
- vol = it_squarewave[playing->tremolo_time];
- break;
- case 3:
- vol = (rand() % 129) - 64;
- break;
- case 4:
- vol = it_xm_squarewave[playing->tremolo_time];
- break;
- case 5:
- vol = it_xm_ramp[playing->tremolo_time];
- break;
- case 6:
- vol = it_xm_ramp[255-((sigrenderer->sigdata->flags & IT_WAS_A_MOD)?playing->vibrato_time:playing->tremolo_time)];
- break;
- }
- vol *= playing->tremolo_depth;
-
- vol = (playing->volume << 5) + vol;
-
- if (vol <= 0)
- return 0;
-
- if (vol > 64 << 5)
- vol = 64 << 5;
-
- if ( sigrenderer->sigdata->flags & IT_WAS_A_PTM )
- {- int v = aiPTMVolScaled[ vol >> 5 ];
- if ( vol < 64 << 5 )
- {- int f = vol & ( ( 1 << 5 ) - 1 );
- int f2 = ( 1 << 5 ) - f;
- int v2 = aiPTMVolScaled[ ( vol >> 5 ) + 1 ];
- v = ( v * f2 + v2 * f ) >> 5;
- }
- vol = v << 1;
- }
-
- volume *= vol; /* 64 << 5 */
- volume *= playing->sample->global_volume; /* 64 */
- volume *= playing->channel_volume; /* 64 */
- volume *= sigrenderer->globalvolume; /* 128 */
- volume *= sigrenderer->sigdata->mixing_volume; /* 128 */
- volume *= 1.0f / ((64 << 5) * 64.0f * 64.0f * 128.0f * 128.0f);
-
- if (volume && playing->instrument) {- if (playing->enabled_envelopes & IT_ENV_VOLUME && playing->env_instrument->volume_envelope.n_nodes) {- volume *= envelope_get_y(&playing->env_instrument->volume_envelope, &playing->volume_envelope);
- volume *= 1.0f / (64 << IT_ENVELOPE_SHIFT);
- }
- volume *= playing->instrument->global_volume; /* 128 */
- volume *= playing->fadeoutcount; /* 1024 */
- volume *= 1.0f / (128.0f * 1024.0f);
- }
- }
-
- return volume;
-}
-
-
-
-static int apply_pan_envelope(IT_PLAYING *playing)
-{- if (playing->pan <= 64 << IT_ENVELOPE_SHIFT) {- int pan;
- if (playing->panbrello_depth) {- switch (playing->panbrello_waveform) {- default:
- pan = it_sine[playing->panbrello_time];
- break;
- case 1:
- pan = it_sawtooth[playing->panbrello_time];
- break;
- case 2:
- pan = it_squarewave[playing->panbrello_time];
- break;
- case 3:
- pan = playing->panbrello_random;
- break;
- }
- pan *= playing->panbrello_depth << 3;
-
- pan += playing->pan;
- if (pan < 0) pan = 0;
- else if (pan > 64 << IT_ENVELOPE_SHIFT) pan = 64 << IT_ENVELOPE_SHIFT;
- } else {- pan = playing->pan;
- }
-
- if (playing->env_instrument && (playing->enabled_envelopes & IT_ENV_PANNING)) {- int p = envelope_get_y(&playing->env_instrument->pan_envelope, &playing->pan_envelope);
- if (pan > 32 << IT_ENVELOPE_SHIFT)
- p *= (64 << IT_ENVELOPE_SHIFT) - pan;
- else
- p *= pan;
- pan += p >> (5 + IT_ENVELOPE_SHIFT);
- }
- return pan;
- }
- return playing->pan;
-}
-
-
-
-/* Note: if a click remover is provided, and store_end_sample is set, then
- * the end point will be computed twice. This situation should not arise.
- */
-static long render_playing(DUMB_IT_SIGRENDERER *sigrenderer, IT_PLAYING *playing, float volume, float main_delta, float delta, long pos, long size, sample_t **samples, int store_end_sample, int *left_to_mix)
-{- int bits;
-
- long size_rendered;
-
- DUMB_VOLUME_RAMP_INFO lvol, rvol;
-
- if (playing->flags & IT_PLAYING_DEAD)
- return 0;
-
- if (*left_to_mix <= 0)
- volume = 0;
-
- {- int quality = sigrenderer->resampling_quality;
- if (playing->sample->max_resampling_quality >= 0 && quality > playing->sample->max_resampling_quality)
- quality = playing->sample->max_resampling_quality;
- playing->resampler.quality = quality;
- resampler_set_quality(playing->resampler.fir_resampler[0], quality);
- resampler_set_quality(playing->resampler.fir_resampler[1], quality);
- }
-
- bits = playing->sample->flags & IT_SAMPLE_16BIT ? 16 : 8;
-
- if (volume == 0) {- if (playing->sample->flags & IT_SAMPLE_STEREO)
- size_rendered = dumb_resample_n_2_1(bits, &playing->resampler, NULL, size, 0, 0, delta);
- else
- size_rendered = dumb_resample_n_1_1(bits, &playing->resampler, NULL, size, 0, delta);
- } else {- lvol.volume = playing->ramp_volume [0];
- rvol.volume = playing->ramp_volume [1];
- lvol.delta = playing->ramp_delta [0] * main_delta;
- rvol.delta = playing->ramp_delta [1] * main_delta;
- lvol.target = playing->float_volume [0];
- rvol.target = playing->float_volume [1];
- rvol.mix = lvol.mix = volume;
- lvol.declick_stage = rvol.declick_stage = playing->declick_stage;
- if (sigrenderer->n_channels >= 2) {- if (playing->sample->flags & IT_SAMPLE_STEREO) {- if (sigrenderer->click_remover) {- sample_t click[2];
- dumb_resample_get_current_sample_n_2_2(bits, &playing->resampler, &lvol, &rvol, click);
- dumb_record_click(sigrenderer->click_remover[0], pos, click[0]);
- dumb_record_click(sigrenderer->click_remover[1], pos, click[1]);
- }
- size_rendered = dumb_resample_n_2_2(bits, &playing->resampler, samples[0] + pos*2, size, &lvol, &rvol, delta);
- if (store_end_sample) {- sample_t click[2];
- dumb_resample_get_current_sample_n_2_2(bits, &playing->resampler, &lvol, &rvol, click);
- samples[0][(pos + size_rendered) * 2] = click[0];
- samples[0][(pos + size_rendered) * 2 + 1] = click[1];
- }
- if (sigrenderer->click_remover) {- sample_t click[2];
- dumb_resample_get_current_sample_n_2_2(bits, &playing->resampler, &lvol, &rvol, click);
- dumb_record_click(sigrenderer->click_remover[0], pos + size_rendered, -click[0]);
- dumb_record_click(sigrenderer->click_remover[1], pos + size_rendered, -click[1]);
- }
- } else {- if (sigrenderer->click_remover) {- sample_t click[2];
- dumb_resample_get_current_sample_n_1_2(bits, &playing->resampler, &lvol, &rvol, click);
- dumb_record_click(sigrenderer->click_remover[0], pos, click[0]);
- dumb_record_click(sigrenderer->click_remover[1], pos, click[1]);
- }
- size_rendered = dumb_resample_n_1_2(bits, &playing->resampler, samples[0] + pos*2, size, &lvol, &rvol, delta);
- if (store_end_sample) {- sample_t click[2];
- dumb_resample_get_current_sample_n_1_2(bits, &playing->resampler, &lvol, &rvol, click);
- samples[0][(pos + size_rendered) * 2] = click[0];
- samples[0][(pos + size_rendered) * 2 + 1] = click[1];
- }
- if (sigrenderer->click_remover) {- sample_t click[2];
- dumb_resample_get_current_sample_n_1_2(bits, &playing->resampler, &lvol, &rvol, click);
- dumb_record_click(sigrenderer->click_remover[0], pos + size_rendered, -click[0]);
- dumb_record_click(sigrenderer->click_remover[1], pos + size_rendered, -click[1]);
- }
- }
- } else {- if (playing->sample->flags & IT_SAMPLE_STEREO) {- if (sigrenderer->click_remover) {- sample_t click;
- dumb_resample_get_current_sample_n_2_1(bits, &playing->resampler, &lvol, &rvol, &click);
- dumb_record_click(sigrenderer->click_remover[0], pos, click);
- }
- size_rendered = dumb_resample_n_2_1(bits, &playing->resampler, samples[0] + pos, size, &lvol, &rvol, delta);
- if (store_end_sample)
- dumb_resample_get_current_sample_n_2_1(bits, &playing->resampler, &lvol, &rvol, &samples[0][pos + size_rendered]);
- if (sigrenderer->click_remover) {- sample_t click;
- dumb_resample_get_current_sample_n_2_1(bits, &playing->resampler, &lvol, &rvol, &click);
- dumb_record_click(sigrenderer->click_remover[0], pos + size_rendered, -click);
- }
- } else {- if (sigrenderer->click_remover) {- sample_t click;
- dumb_resample_get_current_sample_n_1_1(bits, &playing->resampler, &lvol, &click);
- dumb_record_click(sigrenderer->click_remover[0], pos, click);
- }
- size_rendered = dumb_resample_n_1_1(bits, &playing->resampler, samples[0] + pos, size, &lvol, delta);
- if (store_end_sample)
- dumb_resample_get_current_sample_n_1_1(bits, &playing->resampler, &lvol, &samples[0][pos + size_rendered]);
- if (sigrenderer->click_remover) {- sample_t click;
- dumb_resample_get_current_sample_n_1_1(bits, &playing->resampler, &lvol, &click);
- dumb_record_click(sigrenderer->click_remover[0], pos + size_rendered, -click);
- }
- }
- }
- playing->ramp_volume [0] = lvol.volume;
- playing->ramp_volume [1] = rvol.volume;
- playing->declick_stage = (lvol.declick_stage > rvol.declick_stage) ? lvol.declick_stage : rvol.declick_stage;
- if (playing->declick_stage >= 4)
- playing->flags |= IT_PLAYING_DEAD;
- (*left_to_mix)--;
- }
-
- if (playing->resampler.dir == 0)
- playing->flags |= IT_PLAYING_DEAD;
-
- return size_rendered;
-}
-
-typedef struct IT_TO_MIX
-{- IT_PLAYING *playing;
- float volume;
-}
-IT_TO_MIX;
-
-
-
-static int it_to_mix_compare(const void *e1, const void *e2)
-{- if (((const IT_TO_MIX *)e1)->volume > ((const IT_TO_MIX *)e2)->volume)
- return -1;
-
- if (((const IT_TO_MIX *)e1)->volume < ((const IT_TO_MIX *)e2)->volume)
- return 1;
-
- return 0;
-}
-
-
-
-static void apply_pitch_modifications(DUMB_IT_SIGDATA *sigdata, IT_PLAYING *playing, float *delta, int *cutoff)
-{- {- int sample_vibrato_shift;
- switch (playing->sample_vibrato_waveform)
- {- default:
- sample_vibrato_shift = it_sine[playing->sample_vibrato_time];
- break;
- case 1:
- sample_vibrato_shift = it_sawtooth[playing->sample_vibrato_time];
- break;
- case 2:
- sample_vibrato_shift = it_squarewave[playing->sample_vibrato_time];
- break;
- case 3:
- sample_vibrato_shift = (rand() % 129) - 64;
- break;
- case 4:
- sample_vibrato_shift = it_xm_squarewave[playing->sample_vibrato_time];
- break;
- case 5:
- sample_vibrato_shift = it_xm_ramp[playing->sample_vibrato_time];
- break;
- case 6:
- sample_vibrato_shift = it_xm_ramp[255-playing->sample_vibrato_time];
- break;
- }
-
- if (sigdata->flags & IT_WAS_AN_XM) {- int depth = playing->sample->vibrato_depth; /* True depth */
- if (playing->sample->vibrato_rate) {- depth *= playing->sample_vibrato_depth; /* Tick number */
- depth /= playing->sample->vibrato_rate; /* XM sweep */
- }
- sample_vibrato_shift *= depth;
- } else
- sample_vibrato_shift *= playing->sample_vibrato_depth >> 8;
-
- sample_vibrato_shift >>= 4;
-
- if (sample_vibrato_shift) {- if ((sigdata->flags & IT_LINEAR_SLIDES) || !(sigdata->flags & IT_WAS_AN_XM))
- *delta *= (float)pow(DUMB_PITCH_BASE, sample_vibrato_shift);
- else {- /* complicated! */
- float scale = *delta / playing->delta;
-
- *delta = (1.0f / 65536.0f) / playing->delta;
-
- *delta -= sample_vibrato_shift / AMIGA_DIVISOR;
-
- if (*delta < (1.0f / 65536.0f) / 32767.0f) {- *delta = (1.0f / 65536.0f) / 32767.0f;
- }
-
- *delta = (1.0f / 65536.0f) / *delta * scale;
- }
- }
- }
-
- if (playing->env_instrument &&
- (playing->enabled_envelopes & IT_ENV_PITCH))
- {- int p = envelope_get_y(&playing->env_instrument->pitch_envelope, &playing->pitch_envelope);
- if (playing->env_instrument->pitch_envelope.flags & IT_ENVELOPE_PITCH_IS_FILTER)
- *cutoff = (*cutoff * (p+(32<<IT_ENVELOPE_SHIFT))) >> (6 + IT_ENVELOPE_SHIFT);
- else
- *delta *= (float)pow(DUMB_PITCH_BASE, p >> (IT_ENVELOPE_SHIFT - 7));
- }
-}
-
-
-
-static void render_normal(DUMB_IT_SIGRENDERER *sigrenderer, float volume, float delta, long pos, long size, sample_t **samples)
-{- int i;
-
- int n_to_mix = 0;
- IT_TO_MIX to_mix[DUMB_IT_TOTAL_CHANNELS];
- int left_to_mix = dumb_it_max_to_mix;
-
- sample_t **samples_to_filter = NULL;
-
- //int max_output = sigrenderer->max_output;
-
- for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {- if (sigrenderer->channel[i].playing && !(sigrenderer->channel[i].playing->flags & IT_PLAYING_DEAD)) {- to_mix[n_to_mix].playing = sigrenderer->channel[i].playing;
- to_mix[n_to_mix].volume = volume == 0 ? 0 : calculate_volume(sigrenderer, sigrenderer->channel[i].playing, volume);
- n_to_mix++;
- }
- }
-
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (sigrenderer->playing[i]) { /* Won't be dead; it would have been freed. */- to_mix[n_to_mix].playing = sigrenderer->playing[i];
- to_mix[n_to_mix].volume = volume == 0 ? 0 : calculate_volume(sigrenderer, sigrenderer->playing[i], volume);
- n_to_mix++;
- }
- }
-
- if (volume != 0)
- qsort(to_mix, n_to_mix, sizeof(IT_TO_MIX), &it_to_mix_compare);
-
- for (i = 0; i < n_to_mix; i++) {- IT_PLAYING *playing = to_mix[i].playing;
- float note_delta = delta * playing->delta;
- int cutoff = playing->filter_cutoff << IT_ENVELOPE_SHIFT;
- //int output = min( playing->output, max_output );
-
- apply_pitch_modifications(sigrenderer->sigdata, playing, ¬e_delta, &cutoff);
-
- if (cutoff != 127 << IT_ENVELOPE_SHIFT || playing->filter_resonance != 0) {- playing->true_filter_cutoff = cutoff;
- playing->true_filter_resonance = playing->filter_resonance;
- }
-
- if (volume && (playing->true_filter_cutoff != 127 << IT_ENVELOPE_SHIFT || playing->true_filter_resonance != 0)) {- if (!samples_to_filter) {- samples_to_filter = allocate_sample_buffer(sigrenderer->n_channels, size + 1);
- if (!samples_to_filter) {- render_playing(sigrenderer, playing, 0, delta, note_delta, pos, size, NULL, 0, &left_to_mix);
- continue;
- }
- }
- {- long size_rendered;
- DUMB_CLICK_REMOVER **cr = sigrenderer->click_remover;
- dumb_silence(samples_to_filter[0], sigrenderer->n_channels * (size + 1));
- sigrenderer->click_remover = NULL;
- size_rendered = render_playing(sigrenderer, playing, volume, delta, note_delta, 0, size, samples_to_filter, 1, &left_to_mix);
- sigrenderer->click_remover = cr;
- if (sigrenderer->n_channels == 2) {- it_filter(cr ? cr[0] : NULL, &playing->filter_state[0], samples[0 /*output*/], pos, samples_to_filter[0], size_rendered,
- 2, (int)(65536.0f/delta), playing->true_filter_cutoff, playing->true_filter_resonance);
- it_filter(cr ? cr[1] : NULL, &playing->filter_state[1], samples[0 /*output*/]+1, pos, samples_to_filter[0]+1, size_rendered,
- 2, (int)(65536.0f/delta), playing->true_filter_cutoff, playing->true_filter_resonance);
- } else {- it_filter(cr ? cr[0] : NULL, &playing->filter_state[0], samples[0 /*output*/], pos, samples_to_filter[0], size_rendered,
- 1, (int)(65536.0f/delta), playing->true_filter_cutoff, playing->true_filter_resonance);
- }
- // FIXME: filtering is not prevented by low left_to_mix!
- // FIXME: change 'warning' to 'FIXME' everywhere
- }
- } else {- it_reset_filter_state(&playing->filter_state[0]);
- it_reset_filter_state(&playing->filter_state[1]);
- render_playing(sigrenderer, playing, volume, delta, note_delta, pos, size, samples /*&samples[output]*/, 0, &left_to_mix);
- }
- }
-
- destroy_sample_buffer(samples_to_filter);
-
- for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {- if (sigrenderer->channel[i].playing) {- //if ((sigrenderer->channel[i].playing->flags & (IT_PLAYING_BACKGROUND | IT_PLAYING_DEAD)) == (IT_PLAYING_BACKGROUND | IT_PLAYING_DEAD)) {- // This change was made so Gxx would work correctly when a note faded out or whatever. Let's hope nothing else was broken by it.
- if (sigrenderer->channel[i].playing->flags & IT_PLAYING_DEAD) {- free_playing(sigrenderer->channel[i].playing);
- sigrenderer->channel[i].playing = NULL;
- }
- }
- }
-
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (sigrenderer->playing[i]) {- if (sigrenderer->playing[i]->flags & IT_PLAYING_DEAD) {- free_playing(sigrenderer->playing[i]);
- sigrenderer->playing[i] = NULL;
- }
- }
- }
-}
-
-
-
-static void render_surround(DUMB_IT_SIGRENDERER *sigrenderer, float volume, float delta, long pos, long size, sample_t **samples)
-{- int i;
-
- int n_to_mix = 0, n_to_mix_surround = 0;
- IT_TO_MIX to_mix[DUMB_IT_TOTAL_CHANNELS];
- IT_TO_MIX to_mix_surround[DUMB_IT_TOTAL_CHANNELS];
- int left_to_mix = dumb_it_max_to_mix;
-
- int saved_channels = sigrenderer->n_channels;
-
- sample_t **samples_to_filter = NULL;
-
- DUMB_CLICK_REMOVER **saved_cr = sigrenderer->click_remover;
-
- //int max_output = sigrenderer->max_output;
-
- for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {- if (sigrenderer->channel[i].playing && !(sigrenderer->channel[i].playing->flags & IT_PLAYING_DEAD)) {- IT_PLAYING *playing = sigrenderer->channel[i].playing;
- IT_TO_MIX *_to_mix = IT_IS_SURROUND_SHIFTED(playing->pan) ? to_mix_surround + n_to_mix_surround++ : to_mix + n_to_mix++;
- _to_mix->playing = playing;
- _to_mix->volume = volume == 0 ? 0 : calculate_volume(sigrenderer, playing, volume);
- }
- }
-
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (sigrenderer->playing[i]) { /* Won't be dead; it would have been freed. */- IT_PLAYING *playing = sigrenderer->playing[i];
- IT_TO_MIX *_to_mix = IT_IS_SURROUND_SHIFTED(playing->pan) ? to_mix_surround + n_to_mix_surround++ : to_mix + n_to_mix++;
- _to_mix->playing = playing;
- _to_mix->volume = volume == 0 ? 0 : calculate_volume(sigrenderer, playing, volume);
- }
- }
-
- if (volume != 0) {- qsort(to_mix, n_to_mix, sizeof(IT_TO_MIX), &it_to_mix_compare);
- qsort(to_mix_surround, n_to_mix_surround, sizeof(IT_TO_MIX), &it_to_mix_compare);
- }
-
- sigrenderer->n_channels = 2;
-
- for (i = 0; i < n_to_mix; i++) {- IT_PLAYING *playing = to_mix[i].playing;
- float note_delta = delta * playing->delta;
- int cutoff = playing->filter_cutoff << IT_ENVELOPE_SHIFT;
- //int output = min( playing->output, max_output );
-
- apply_pitch_modifications(sigrenderer->sigdata, playing, ¬e_delta, &cutoff);
-
- if (cutoff != 127 << IT_ENVELOPE_SHIFT || playing->filter_resonance != 0) {- playing->true_filter_cutoff = cutoff;
- playing->true_filter_resonance = playing->filter_resonance;
- }
-
- if (volume && (playing->true_filter_cutoff != 127 << IT_ENVELOPE_SHIFT || playing->true_filter_resonance != 0)) {- if (!samples_to_filter) {- samples_to_filter = allocate_sample_buffer(sigrenderer->n_channels, size + 1);
- if (!samples_to_filter) {- render_playing(sigrenderer, playing, 0, delta, note_delta, pos, size, NULL, 0, &left_to_mix);
- continue;
- }
- }
- {- long size_rendered;
- DUMB_CLICK_REMOVER **cr = sigrenderer->click_remover;
- dumb_silence(samples_to_filter[0], sigrenderer->n_channels * (size + 1));
- sigrenderer->click_remover = NULL;
- size_rendered = render_playing(sigrenderer, playing, volume, delta, note_delta, 0, size, samples_to_filter, 1, &left_to_mix);
- sigrenderer->click_remover = cr;
- it_filter(cr ? cr[0] : NULL, &playing->filter_state[0], samples[0 /*output*/], pos, samples_to_filter[0], size_rendered,
- 2, (int)(65536.0f/delta), playing->true_filter_cutoff, playing->true_filter_resonance);
- it_filter(cr ? cr[1] : NULL, &playing->filter_state[1], samples[0 /*output*/]+1, pos, samples_to_filter[0]+1, size_rendered,
- 2, (int)(65536.0f/delta), playing->true_filter_cutoff, playing->true_filter_resonance);
- }
- } else {- it_reset_filter_state(&playing->filter_state[0]);
- it_reset_filter_state(&playing->filter_state[1]);
- render_playing(sigrenderer, playing, volume, delta, note_delta, pos, size, samples /*&samples[output]*/, 0, &left_to_mix);
- }
- }
-
- sigrenderer->n_channels = 1;
- sigrenderer->click_remover = saved_cr ? saved_cr + 2 : 0;
-
- for (i = 0; i < n_to_mix_surround; i++) {- IT_PLAYING *playing = to_mix_surround[i].playing;
- float note_delta = delta * playing->delta;
- int cutoff = playing->filter_cutoff << IT_ENVELOPE_SHIFT;
- //int output = min( playing->output, max_output );
-
- apply_pitch_modifications(sigrenderer->sigdata, playing, ¬e_delta, &cutoff);
-
- if (cutoff != 127 << IT_ENVELOPE_SHIFT || playing->filter_resonance != 0) {- playing->true_filter_cutoff = cutoff;
- playing->true_filter_resonance = playing->filter_resonance;
- }
-
- if (volume && (playing->true_filter_cutoff != 127 << IT_ENVELOPE_SHIFT || playing->true_filter_resonance != 0)) {- if (!samples_to_filter) {- samples_to_filter = allocate_sample_buffer(sigrenderer->n_channels, size + 1);
- if (!samples_to_filter) {- render_playing(sigrenderer, playing, 0, delta, note_delta, pos, size, NULL, 0, &left_to_mix);
- continue;
- }
- }
- {- long size_rendered;
- DUMB_CLICK_REMOVER **cr = sigrenderer->click_remover;
- dumb_silence(samples_to_filter[0], size + 1);
- sigrenderer->click_remover = NULL;
- size_rendered = render_playing(sigrenderer, playing, volume, delta, note_delta, 0, size, samples_to_filter, 1, &left_to_mix);
- sigrenderer->click_remover = cr;
- it_filter(cr ? cr[0] : NULL, &playing->filter_state[0], samples[1 /*output*/], pos, samples_to_filter[0], size_rendered,
- 1, (int)(65536.0f/delta), playing->true_filter_cutoff, playing->true_filter_resonance);
- // FIXME: filtering is not prevented by low left_to_mix!
- // FIXME: change 'warning' to 'FIXME' everywhere
- }
- } else {- it_reset_filter_state(&playing->filter_state[0]);
- it_reset_filter_state(&playing->filter_state[1]);
- render_playing(sigrenderer, playing, volume, delta, note_delta, pos, size, &samples[1], 0, &left_to_mix);
- }
- }
-
- sigrenderer->n_channels = saved_channels;
- sigrenderer->click_remover = saved_cr;
-
- destroy_sample_buffer(samples_to_filter);
-
- for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {- if (sigrenderer->channel[i].playing) {- //if ((sigrenderer->channel[i].playing->flags & (IT_PLAYING_BACKGROUND | IT_PLAYING_DEAD)) == (IT_PLAYING_BACKGROUND | IT_PLAYING_DEAD)) {- // This change was made so Gxx would work correctly when a note faded out or whatever. Let's hope nothing else was broken by it.
- if (sigrenderer->channel[i].playing->flags & IT_PLAYING_DEAD) {- free_playing(sigrenderer->channel[i].playing);
- sigrenderer->channel[i].playing = NULL;
- }
- }
- }
-
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (sigrenderer->playing[i]) {- if (sigrenderer->playing[i]->flags & IT_PLAYING_DEAD) {- free_playing(sigrenderer->playing[i]);
- sigrenderer->playing[i] = NULL;
- }
- }
- }
-}
-
-
-
-static void render(DUMB_IT_SIGRENDERER *sigrenderer, float volume, float delta, long pos, long size, sample_t **samples)
-{- if (size == 0) return;
- if (sigrenderer->n_channels == 1 || sigrenderer->n_channels == 2)
- render_normal(sigrenderer, volume, delta, pos, size, samples);
- else if (sigrenderer->n_channels == 3)
- render_surround(sigrenderer, volume, delta, pos, size, samples);
-}
-
-
-
-static DUMB_IT_SIGRENDERER *init_sigrenderer(DUMB_IT_SIGDATA *sigdata, int n_channels, int startorder, IT_CALLBACKS *callbacks, DUMB_CLICK_REMOVER **cr)
-{- DUMB_IT_SIGRENDERER *sigrenderer;
- int i;
-
- if (startorder > sigdata->n_orders) {- free(callbacks);
- dumb_destroy_click_remover_array(n_channels, cr);
- return NULL;
- }
-
- sigrenderer = malloc(sizeof(*sigrenderer));
- if (!sigrenderer) {- free(callbacks);
- dumb_destroy_click_remover_array(n_channels, cr);
- return NULL;
- }
-
- sigrenderer->callbacks = callbacks;
- sigrenderer->click_remover = cr;
-
- sigrenderer->sigdata = sigdata;
- sigrenderer->n_channels = n_channels;
- sigrenderer->resampling_quality = dumb_resampling_quality;
- sigrenderer->ramp_style = DUMB_IT_RAMP_FULL;
- sigrenderer->globalvolume = sigdata->global_volume;
- sigrenderer->tempo = sigdata->tempo;
-
- for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {- IT_CHANNEL *channel = &sigrenderer->channel[i];
-#if IT_CHANNEL_MUTED != 1
-#error this is wrong
-#endif
- channel->flags = sigdata->channel_pan[i] >> 7;
- channel->volume = (sigdata->flags & IT_WAS_AN_XM) ? 0 : 64;
- channel->pan = sigdata->channel_pan[i] & 0x7F;
- channel->truepan = channel->pan << IT_ENVELOPE_SHIFT;
- channel->channelvolume = sigdata->channel_volume[i];
- channel->instrument = 0;
- channel->sample = 0;
- channel->note = IT_NOTE_OFF;
- channel->SFmacro = 0;
- channel->filter_cutoff = 127;
- channel->filter_resonance = 0;
- channel->new_note_action = 0xFF;
- channel->xm_retrig = 0;
- channel->retrig_tick = 0;
- channel->tremor_time = 0;
- channel->vibrato_waveform = 0;
- channel->tremolo_waveform = 0;
- channel->panbrello_waveform = 0;
- channel->glissando = 0;
- channel->toneslide = 0;
- channel->ptm_toneslide = 0;
- channel->ptm_last_toneslide = 0;
- channel->okt_toneslide = 0;
- channel->midi_state = 0;
- channel->lastvolslide = 0;
- channel->lastDKL = 0;
- channel->lastEF = 0;
- channel->lastG = 0;
- channel->lastHspeed = 0;
- channel->lastHdepth = 0;
- channel->lastRspeed = 0;
- channel->lastRdepth = 0;
- channel->lastYspeed = 0;
- channel->lastYdepth = 0;
- channel->lastI = 0;
- channel->lastJ = 0;
- channel->lastN = 0;
- channel->lastO = 0;
- channel->high_offset = 0;
- channel->lastP = 0;
- channel->lastQ = 0;
- channel->lastS = 0;
- channel->pat_loop_row = 0;
- channel->pat_loop_count = 0;
- channel->pat_loop_end_row = 0;
- channel->lastW = 0;
- channel->xm_lastE1 = 0;
- channel->xm_lastE2 = 0;
- channel->xm_lastEA = 0;
- channel->xm_lastEB = 0;
- channel->xm_lastX1 = 0;
- channel->xm_lastX2 = 0;
- channel->inv_loop_delay = 0;
- channel->inv_loop_speed = 0;
- channel->inv_loop_offset = 0;
- channel->playing = NULL;
-#ifdef BIT_ARRAY_BULLSHIT
- channel->played_patjump = NULL;
- channel->played_patjump_order = 0xFFFE;
-#endif
- //channel->output = 0;
- }
-
- if (sigdata->flags & IT_WAS_A_669)
- reset_effects(sigrenderer);
-
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++)
- sigrenderer->playing[i] = NULL;
-
- sigrenderer->speed = sigdata->speed;
-
- sigrenderer->processrow = 0xFFFE;
- sigrenderer->n_rows = 0;
- sigrenderer->breakrow = 0;
- sigrenderer->rowcount = 1;
- sigrenderer->order = startorder;
- /* meh!
- if (startorder > 0) {- int n;
- for (n = startorder - 1; n >= 0; n--) {- if (sigdata->order[n] > sigdata->n_patterns) {- sigrenderer->restart_position = n + 1;
- break;
- }
- }
- }
- */
- if (startorder > 0) {- sigrenderer->restart_position = startorder;
- } else {- sigrenderer->restart_position = sigdata->restart_position;
- }
-
- sigrenderer->row = 0;
- sigrenderer->processorder = startorder - 1;
- sigrenderer->tick = 1;
-
-#ifdef BIT_ARRAY_BULLSHIT
- sigrenderer->played = bit_array_create(sigdata->n_orders * 256);
-
- sigrenderer->looped = 0;
- sigrenderer->time_played = 0;
- sigrenderer->row_timekeeper = timekeeping_array_create(sigdata->n_orders * 256);
-#endif
-
- {- int order;
- for (order = 0; order < sigdata->n_orders; order++) {- int n = sigdata->order[order];
- if (n < sigdata->n_patterns) goto found_valid_order;
-#ifdef INVALID_ORDERS_END_SONG
- if (n != IT_ORDER_SKIP)
-#else
- if (n == IT_ORDER_END)
-#endif
- break;
-
-#ifdef BIT_ARRAY_BULLSHIT
- /* Fix for played order detection for songs which have skips at the start of the orders list */
- for (n = 0; n < 256; n++) {- bit_array_set(sigrenderer->played, order * 256 + n);
- timekeeping_array_push(sigrenderer->row_timekeeper, order * 256 + n, 0);
- timekeeping_array_bump(sigrenderer->row_timekeeper, order * 256 + n);
- }
-#endif
- }
- /* If we get here, there were no valid orders in the song. */
- _dumb_it_end_sigrenderer(sigrenderer);
- return NULL;
- }
- found_valid_order:
-
- sigrenderer->time_left = 0;
- sigrenderer->sub_time_left = 0;
-
- sigrenderer->gvz_time = 0;
- sigrenderer->gvz_sub_time = 0;
-
- //sigrenderer->max_output = 0;
-
- if ( !(sigdata->flags & IT_WAS_PROCESSED) ) {- dumb_it_add_lpc( sigdata );
-
- sigdata->flags |= IT_WAS_PROCESSED;
- }
-
- return sigrenderer;
-}
-
-
-void dumb_it_set_resampling_quality(DUMB_IT_SIGRENDERER * sigrenderer, int quality)
-{- if (sigrenderer && quality >= 0 && quality < DUMB_RQ_N_LEVELS)
- {- int i;
- sigrenderer->resampling_quality = quality;
- for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {- if (sigrenderer->channel[i].playing)
- {- IT_PLAYING * playing = sigrenderer->channel[i].playing;
- playing->resampling_quality = quality;
- playing->resampler.quality = quality;
- resampler_set_quality(playing->resampler.fir_resampler[0], quality);
- resampler_set_quality(playing->resampler.fir_resampler[1], quality);
- }
- }
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {- if (sigrenderer->playing[i]) {- IT_PLAYING * playing = sigrenderer->playing[i];
- playing->resampling_quality = quality;
- playing->resampler.quality = quality;
- resampler_set_quality(playing->resampler.fir_resampler[0], quality);
- resampler_set_quality(playing->resampler.fir_resampler[1], quality);
- }
- }
- }
-}
-
-
-void dumb_it_set_ramp_style(DUMB_IT_SIGRENDERER * sigrenderer, int ramp_style) {- if (sigrenderer && ramp_style >= 0 && ramp_style <= 2) {- sigrenderer->ramp_style = ramp_style;
- }
-}
-
-
-void dumb_it_set_loop_callback(DUMB_IT_SIGRENDERER *sigrenderer, int (*callback)(void *data), void *data)
-{- if (sigrenderer) {- sigrenderer->callbacks->loop = callback;
- sigrenderer->callbacks->loop_data = data;
- }
-}
-
-
-
-void dumb_it_set_xm_speed_zero_callback(DUMB_IT_SIGRENDERER *sigrenderer, int (*callback)(void *data), void *data)
-{- if (sigrenderer) {- sigrenderer->callbacks->xm_speed_zero = callback;
- sigrenderer->callbacks->xm_speed_zero_data = data;
- }
-}
-
-
-
-void dumb_it_set_midi_callback(DUMB_IT_SIGRENDERER *sigrenderer, int (*callback)(void *data, int channel, unsigned char midi_byte), void *data)
-{- if (sigrenderer) {- sigrenderer->callbacks->midi = callback;
- sigrenderer->callbacks->midi_data = data;
- }
-}
-
-
-
-void dumb_it_set_global_volume_zero_callback(DUMB_IT_SIGRENDERER *sigrenderer, int (*callback)(void *data), void *data)
-{- if (sigrenderer) {- sigrenderer->callbacks->global_volume_zero = callback;
- sigrenderer->callbacks->global_volume_zero_data = data;
- }
-}
-
-
-
-static IT_CALLBACKS *create_callbacks(void)
-{- IT_CALLBACKS *callbacks = malloc(sizeof(*callbacks));
- if (!callbacks) return NULL;
- callbacks->loop = NULL;
- callbacks->xm_speed_zero = NULL;
- callbacks->midi = NULL;
- callbacks->global_volume_zero = NULL;
- return callbacks;
-}
-
-
-
-static DUMB_IT_SIGRENDERER *dumb_it_init_sigrenderer(DUMB_IT_SIGDATA *sigdata, int n_channels, int startorder)
-{- IT_CALLBACKS *callbacks;
-
- if (!sigdata) return NULL;
-
- callbacks = create_callbacks();
- if (!callbacks) return NULL;
-
- return init_sigrenderer(sigdata, n_channels, startorder, callbacks,
- dumb_create_click_remover_array(n_channels));
-}
-
-
-
-DUH_SIGRENDERER *dumb_it_start_at_order(DUH *duh, int n_channels, int startorder)
-{- DUMB_IT_SIGDATA *itsd = duh_get_it_sigdata(duh);
- DUMB_IT_SIGRENDERER *itsr = dumb_it_init_sigrenderer(itsd, n_channels, startorder);
- /*duh->length = dumb_it_build_checkpoints(itsd, startorder);*/
- return duh_encapsulate_it_sigrenderer(itsr, n_channels, 0);
-}
-
-
-
-static sigrenderer_t *it_start_sigrenderer(DUH *duh, sigdata_t *vsigdata, int n_channels, long pos)
-{- DUMB_IT_SIGDATA *sigdata = vsigdata;
- DUMB_IT_SIGRENDERER *sigrenderer;
-
- (void)duh;
-
- {- IT_CALLBACKS *callbacks = create_callbacks();
- if (!callbacks) return NULL;
-
- if (sigdata->checkpoint) {- IT_CHECKPOINT *checkpoint = sigdata->checkpoint;
- while (checkpoint->next && checkpoint->next->time < pos)
- checkpoint = checkpoint->next;
- sigrenderer = dup_sigrenderer(checkpoint->sigrenderer, n_channels, callbacks);
- if (!sigrenderer) return NULL;
- sigrenderer->click_remover = dumb_create_click_remover_array(n_channels);
- pos -= checkpoint->time;
- } else {- sigrenderer = init_sigrenderer(sigdata, n_channels, 0, callbacks,
- dumb_create_click_remover_array(n_channels));
- if (!sigrenderer) return NULL;
- }
- }
-
- while (pos > 0 && pos >= sigrenderer->time_left) {- render(sigrenderer, 0, 1.0f, 0, sigrenderer->time_left, NULL);
-
-#ifdef BIT_ARRAY_BULLSHIT
- sigrenderer->time_played += (LONG_LONG)sigrenderer->time_left << 16;
-#endif
-
- pos -= sigrenderer->time_left;
- sigrenderer->time_left = 0;
-
- if (process_tick(sigrenderer)) {- _dumb_it_end_sigrenderer(sigrenderer);
- return NULL;
- }
- }
-
- render(sigrenderer, 0, 1.0f, 0, pos, NULL);
- sigrenderer->time_left -= pos;
-
-#ifdef BIT_ARRAY_BULLSHIT
- sigrenderer->time_played += (LONG_LONG)pos << 16;
-#endif
-
- return sigrenderer;
-}
-
-
-
-static long it_sigrenderer_get_samples(
- sigrenderer_t *vsigrenderer,
- float volume, float delta,
- long size, sample_t **samples
-)
-{- DUMB_IT_SIGRENDERER *sigrenderer = vsigrenderer;
- long pos;
- int dt;
- long todo;
- int ret;
- LONG_LONG t;
-
- if (sigrenderer->order < 0) return 0; // problematic
-
- pos = 0;
- dt = (int)(delta * 65536.0f + 0.5f);
-
- /* When samples is finally used in render_playing(), it won't be used if
- * volume is 0.
- */
- if (!samples) volume = 0;
-
- for (;;) {- todo = (long)((((LONG_LONG)sigrenderer->time_left << 16) | sigrenderer->sub_time_left) / dt);
-
- if (todo >= size)
- break;
-
- render(sigrenderer, volume, delta, pos, todo, samples);
-
- pos += todo;
- size -= todo;
-
- t = sigrenderer->sub_time_left - (LONG_LONG)todo * dt;
- sigrenderer->sub_time_left = (long)t & 65535;
- sigrenderer->time_left += (long)(t >> 16);
-
-#ifdef BIT_ARRAY_BULLSHIT
- sigrenderer->time_played += (LONG_LONG)todo * dt;
-#endif
-
- ret = process_tick(sigrenderer);
-
- if (ret) {- sigrenderer->order = -1;
- sigrenderer->row = -1;
- }
-
-#ifdef BIT_ARRAY_BULLSHIT
- if (sigrenderer->looped == 1) {- sigrenderer->looped = -1;
- size = 0;
- timekeeping_array_reset(sigrenderer->row_timekeeper, sigrenderer->order * 256 + sigrenderer->row);
- sigrenderer->time_played = timekeeping_array_get_item(sigrenderer->row_timekeeper, sigrenderer->order * 256 + sigrenderer->row);
- break;
- }
-#endif
-
- if (ret) {- return pos;
- }
- }
-
- render(sigrenderer, volume, delta, pos, size, samples);
-
- pos += size;
-
- t = sigrenderer->sub_time_left - (LONG_LONG)size * dt;
- sigrenderer->sub_time_left = (long)t & 65535;
- sigrenderer->time_left += (long)(t >> 16);
-
-#ifdef BIT_ARRAY_BULLSHIT
- sigrenderer->time_played += (LONG_LONG)size * dt;
-#endif
-
- if (samples)
- dumb_remove_clicks_array(sigrenderer->n_channels, sigrenderer->click_remover, samples, pos, 512.0f / delta);
-
- return pos;
-}
-
-
-
-static void it_sigrenderer_get_current_sample(sigrenderer_t *vsigrenderer, float volume, sample_t *samples)
-{- DUMB_IT_SIGRENDERER *sigrenderer = vsigrenderer;
- (void)volume; // for consideration: in any of these such functions, is 'volume' going to be required?
- dumb_click_remover_get_offset_array(sigrenderer->n_channels, sigrenderer->click_remover, samples);
-}
-
-
-
-void _dumb_it_end_sigrenderer(sigrenderer_t *vsigrenderer)
-{- DUMB_IT_SIGRENDERER *sigrenderer = vsigrenderer;
-
- int i;
-
- if (sigrenderer) {- for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {- if (sigrenderer->channel[i].playing)
- free_playing(sigrenderer->channel[i].playing);
-#ifdef BIT_ARRAY_BULLSHIT
- bit_array_destroy(sigrenderer->channel[i].played_patjump);
-#endif
- }
-
- for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++)
- if (sigrenderer->playing[i])
- free_playing(sigrenderer->playing[i]);
-
- dumb_destroy_click_remover_array(sigrenderer->n_channels, sigrenderer->click_remover);
-
- if (sigrenderer->callbacks)
- free(sigrenderer->callbacks);
-
-#ifdef BIT_ARRAY_BULLSHIT
- bit_array_destroy(sigrenderer->played);
-
- timekeeping_array_destroy(sigrenderer->row_timekeeper);
-#endif
-
- free(vsigrenderer);
- }
-}
-
-
-
-#ifdef BIT_ARRAY_BULLSHIT
-static long it_sigrenderer_get_position(sigrenderer_t *vsigrenderer)
-{- DUMB_IT_SIGRENDERER *sigrenderer = (DUMB_IT_SIGRENDERER *) vsigrenderer;
-
- return (long)(sigrenderer->time_played >> 16);
-}
-#endif
-
-
-
-DUH_SIGTYPE_DESC _dumb_sigtype_it = {- SIGTYPE_IT,
- NULL,
- &it_start_sigrenderer,
- NULL,
- &it_sigrenderer_get_samples,
- &it_sigrenderer_get_current_sample,
-#ifdef BIT_ARRAY_BULLSHIT
- &it_sigrenderer_get_position,
-#else
- NULL,
-#endif
- &_dumb_it_end_sigrenderer,
- &_dumb_it_unload_sigdata
-};
-
-
-
-DUH_SIGRENDERER *duh_encapsulate_it_sigrenderer(DUMB_IT_SIGRENDERER *it_sigrenderer, int n_channels, long pos)
-{- return duh_encapsulate_raw_sigrenderer(it_sigrenderer, &_dumb_sigtype_it, n_channels, pos);
-}
-
-
-
-DUMB_IT_SIGRENDERER *duh_get_it_sigrenderer(DUH_SIGRENDERER *sigrenderer)
-{- return duh_get_raw_sigrenderer(sigrenderer, SIGTYPE_IT);
-}
-
-
-
-/* Values of 64 or more will access NNA channels here. */
-void dumb_it_sr_get_channel_state(DUMB_IT_SIGRENDERER *sr, int channel, DUMB_IT_CHANNEL_STATE *state)
-{- IT_PLAYING *playing;
- int t; /* temporary var for holding accurate pan and filter cutoff */
- float delta;
- ASSERT(channel < DUMB_IT_TOTAL_CHANNELS);
- if (!sr) { state->sample = 0; return; }- if (channel >= DUMB_IT_N_CHANNELS) {- playing = sr->playing[channel - DUMB_IT_N_CHANNELS];
- if (!playing) { state->sample = 0; return; }- } else {- playing = sr->channel[channel].playing;
- if (!playing) { state->sample = 0; return; }- }
-
- if (playing->flags & IT_PLAYING_DEAD) { state->sample = 0; return; }-
- state->channel = (int)(playing->channel - sr->channel);
- state->sample = playing->sampnum;
- state->volume = calculate_volume(sr, playing, 1.0f);
-
- t = apply_pan_envelope(playing);
- state->pan = (unsigned char)((t + 128) >> IT_ENVELOPE_SHIFT);
- state->subpan = (signed char)t;
-
- delta = playing->delta * 65536.0f;
- t = playing->filter_cutoff << IT_ENVELOPE_SHIFT;
- apply_pitch_modifications(sr->sigdata, playing, &delta, &t);
- state->freq = (int)delta;
- if (t == 127 << IT_ENVELOPE_SHIFT && playing->filter_resonance == 0) {- state->filter_resonance = playing->true_filter_resonance;
- t = playing->true_filter_cutoff;
- } else
- state->filter_resonance = playing->filter_resonance;
- state->filter_cutoff = (unsigned char)(t >> 8);
- state->filter_subcutoff = (unsigned char)t;
-}
-
-
-
-int dumb_it_callback_terminate(void *data)
-{- (void)data;
- return 1;
-}
-
-
-
-int dumb_it_callback_midi_block(void *data, int channel, unsigned char midi_byte)
-{- (void)data;
- (void)channel;
- (void)midi_byte;
- return 1;
-}
-
-
-
-#define IT_CHECKPOINT_INTERVAL (30 * 65536) /* Half a minute */
-
-#define FUCKIT_THRESHOLD (120 * 60 * 65536) /* two hours? probably a pattern loop mess... */
-
-/* Returns the length of the module, up until it first loops. */
-long dumb_it_build_checkpoints(DUMB_IT_SIGDATA *sigdata, int startorder)
-{- IT_CHECKPOINT *checkpoint;
- if (!sigdata) return 0;
- checkpoint = sigdata->checkpoint;
- while (checkpoint) {- IT_CHECKPOINT *next = checkpoint->next;
- _dumb_it_end_sigrenderer(checkpoint->sigrenderer);
- free(checkpoint);
- checkpoint = next;
- }
- sigdata->checkpoint = NULL;
- checkpoint = malloc(sizeof(*checkpoint));
- if (!checkpoint) return 0;
- checkpoint->time = 0;
- checkpoint->sigrenderer = dumb_it_init_sigrenderer(sigdata, 0, startorder);
- if (!checkpoint->sigrenderer) {- free(checkpoint);
- return 0;
- }
- checkpoint->sigrenderer->callbacks->loop = &dumb_it_callback_terminate;
- checkpoint->sigrenderer->callbacks->xm_speed_zero = &dumb_it_callback_terminate;
- checkpoint->sigrenderer->callbacks->global_volume_zero = &dumb_it_callback_terminate;
-
- if (sigdata->checkpoint)
- {- IT_CHECKPOINT *checkpoint = sigdata->checkpoint;
- while (checkpoint) {- IT_CHECKPOINT *next = checkpoint->next;
- _dumb_it_end_sigrenderer(checkpoint->sigrenderer);
- free(checkpoint);
- checkpoint = next;
- }
- }
-
- sigdata->checkpoint = checkpoint;
-
- for (;;) {- long l;
- DUMB_IT_SIGRENDERER *sigrenderer = dup_sigrenderer(checkpoint->sigrenderer, 0, checkpoint->sigrenderer->callbacks);
- checkpoint->sigrenderer->callbacks = NULL;
- if (!sigrenderer) {- checkpoint->next = NULL;
- return checkpoint->time;
- }
-
- l = it_sigrenderer_get_samples(sigrenderer, 0, 1.0f, IT_CHECKPOINT_INTERVAL, NULL);
- if (l < IT_CHECKPOINT_INTERVAL) {- _dumb_it_end_sigrenderer(sigrenderer);
- checkpoint->next = NULL;
- return checkpoint->time + l;
- }
-
- checkpoint->next = malloc(sizeof(*checkpoint->next));
- if (!checkpoint->next) {- _dumb_it_end_sigrenderer(sigrenderer);
- return checkpoint->time + IT_CHECKPOINT_INTERVAL;
- }
-
- checkpoint->next->time = checkpoint->time + IT_CHECKPOINT_INTERVAL;
- checkpoint = checkpoint->next;
- checkpoint->sigrenderer = sigrenderer;
-
- if (checkpoint->time >= FUCKIT_THRESHOLD) {- checkpoint->next = NULL;
- return 0;
- }
- }
-}
-
-
-
-void dumb_it_do_initial_runthrough(DUH *duh)
-{- if (duh) {- DUMB_IT_SIGDATA *sigdata = duh_get_it_sigdata(duh);
-
- if (sigdata)
- duh_set_length(duh, dumb_it_build_checkpoints(sigdata, 0));
- }
-}
-
-static int is_pattern_silent(IT_PATTERN * pattern, int order) {- int ret = 1;
- IT_ENTRY * entry, * end;
- if (!pattern || !pattern->n_rows || !pattern->n_entries || !pattern->entry) return 2;
-
- if ( pattern->n_entries == pattern->n_rows ) {- int n;
- entry = pattern->entry;
- for ( n = 0; n < pattern->n_entries; ++n, ++entry ) {- if ( !IT_IS_END_ROW(entry) ) break;
- }
- if ( n == pattern->n_entries ) return 2;
- // broken?
- }
-
- entry = pattern->entry;
- end = entry + pattern->n_entries;
-
- while (entry < end) {- if (!IT_IS_END_ROW(entry)) {- if (entry->mask & (IT_ENTRY_INSTRUMENT | IT_ENTRY_VOLPAN))
- return 0;
- if (entry->mask & IT_ENTRY_NOTE && entry->note < 120)
- return 0;
- if (entry->mask & IT_ENTRY_EFFECT) {- switch (entry->effect) {- case IT_SET_GLOBAL_VOLUME:
- if (entry->effectvalue) return 0;
- break;
-
- case IT_SET_SPEED:
- if (entry->effectvalue > 64) ret++;
- break;
-
- case IT_SET_SONG_TEMPO:
- case IT_XM_KEY_OFF:
- break;
-
- case IT_JUMP_TO_ORDER:
- if (entry->effectvalue != order)
- return 0;
- break;
-
- case IT_S:
- switch (entry->effectvalue >> 4) {- case 0: // meh bastard
- if ( entry->effectvalue != 0 ) return 0;
- break;
-
- case IT_S_FINE_PATTERN_DELAY:
- case IT_S_PATTERN_LOOP:
- case IT_S_PATTERN_DELAY:
- ret++;
- break;
-
- case IT_S7:
- if ((entry->effectvalue & 15) > 2)
- return 0;
- break;
-
- default:
- return 0;
- }
- break;
-
- // clever idiot with his S L O W crap; do nothing
- case IT_VOLSLIDE_TONEPORTA:
- case IT_SET_SAMPLE_OFFSET:
- case IT_GLOBAL_VOLUME_SLIDE:
- if ( entry->effectvalue != 0 ) return 0;
- break;
-
- // genius also uses this instead of jump to order by mistake, meh, and it's bloody BCD
- case IT_BREAK_TO_ROW:
- if ( ( ( entry->effectvalue >> 4 ) * 10 + ( entry->effectvalue & 15 ) ) != order ) return 0;
- break;
-
- default:
- return 0;
- }
- }
- }
- entry++;
- }
-
- return ret;
-}
-
-int dumb_it_trim_silent_patterns(DUH * duh) {- int n;
- DUMB_IT_SIGDATA *sigdata;
-
- if (!duh) return -1;
-
- sigdata = duh_get_it_sigdata(duh);
-
- if (!sigdata || !sigdata->order || !sigdata->pattern) return -1;
-
- for (n = 0; n < sigdata->n_orders; n++) {- int p = sigdata->order[n];
- if (p < sigdata->n_patterns) {- IT_PATTERN * pattern = &sigdata->pattern[p];
- if (is_pattern_silent(pattern, n) > 1) {- pattern->n_rows = 1;
- pattern->n_entries = 0;
- if (pattern->entry)
- {- free(pattern->entry);
- pattern->entry = NULL;
- }
- } else
- break;
- }
- }
-
- if (n == sigdata->n_orders) return -1;
-
- for (n = sigdata->n_orders - 1; n >= 0; n--) {- int p = sigdata->order[n];
- if (p < sigdata->n_patterns) {- IT_PATTERN * pattern = &sigdata->pattern[p];
- if (is_pattern_silent(pattern, n) > 1) {- pattern->n_rows = 1;
- pattern->n_entries = 0;
- if (pattern->entry)
- {- free(pattern->entry);
- pattern->entry = NULL;
- }
- } else
- break;
- }
- }
-
- if (n < 0) return -1;
-
- /*duh->length = dumb_it_build_checkpoints(sigdata, 0);*/
-
- return 0;
-}
-
-int dumb_it_scan_for_playable_orders(DUMB_IT_SIGDATA *sigdata, dumb_scan_callback callback, void * callback_data)
-{- int n;
- long length;
- void * ba_played;
- DUMB_IT_SIGRENDERER * sigrenderer;
-
- if (!sigdata->n_orders || !sigdata->order) return -1;
-
- ba_played = bit_array_create(sigdata->n_orders * 256);
- if (!ba_played) return -1;
-
- /* Skip the first order, it should always be played */
- for (n = 1; n < sigdata->n_orders; n++) {- if ((sigdata->order[n] >= sigdata->n_patterns) ||
- (is_pattern_silent(&sigdata->pattern[sigdata->order[n]], n) > 1))
- bit_array_set(ba_played, n * 256);
- }
-
- for (;;) {- for (n = 0; n < sigdata->n_orders; n++) {- if (!bit_array_test_range(ba_played, n * 256, 256)) break;
- }
-
- if (n == sigdata->n_orders) break;
-
- sigrenderer = dumb_it_init_sigrenderer(sigdata, 0, n);
- if (!sigrenderer) {- bit_array_destroy(ba_played);
- return -1;
- }
- sigrenderer->callbacks->loop = &dumb_it_callback_terminate;
- sigrenderer->callbacks->xm_speed_zero = &dumb_it_callback_terminate;
- sigrenderer->callbacks->global_volume_zero = &dumb_it_callback_terminate;
-
- length = 0;
-
- for (;;) {- long l;
-
- l = it_sigrenderer_get_samples(sigrenderer, 0, 1.0f, IT_CHECKPOINT_INTERVAL, NULL);
- length += l;
- if (l < IT_CHECKPOINT_INTERVAL || length >= FUCKIT_THRESHOLD) {- /* SONG OVA! */
- break;
- }
- }
-
- if ((*callback)(callback_data, n, length) < 0) return -1;
-
- bit_array_merge(ba_played, sigrenderer->played, 0);
-
- _dumb_it_end_sigrenderer(sigrenderer);
- }
-
- bit_array_destroy(ba_played);
-
- return 0;
-}
--- a/dumb/src/it/itunload.c
+++ /dev/null
@@ -1,72 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * itunload.c - Code to free an Impulse Tracker / / \ \
- * module from memory. | < / \_
- * | \/ /\ /
- * By entheh. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-void _dumb_it_unload_sigdata(sigdata_t *vsigdata)
-{- if (vsigdata) {- DUMB_IT_SIGDATA *sigdata = vsigdata;
- int n;
-
- if (sigdata->song_message)
- free(sigdata->song_message);
-
- if (sigdata->order)
- free(sigdata->order);
-
- if (sigdata->instrument)
- free(sigdata->instrument);
-
- if (sigdata->sample) {- for (n = 0; n < sigdata->n_samples; n++)
- if (sigdata->sample[n].data)
- free(sigdata->sample[n].data);
-
- free(sigdata->sample);
- }
-
- if (sigdata->pattern) {- for (n = 0; n < sigdata->n_patterns; n++)
- if (sigdata->pattern[n].entry)
- free(sigdata->pattern[n].entry);
- free(sigdata->pattern);
- }
-
- if (sigdata->midi)
- free(sigdata->midi);
-
- {- IT_CHECKPOINT *checkpoint = sigdata->checkpoint;
- while (checkpoint) {- IT_CHECKPOINT *next = checkpoint->next;
- _dumb_it_end_sigrenderer(checkpoint->sigrenderer);
- free(checkpoint);
- checkpoint = next;
- }
- }
-
- free(vsigdata);
- }
-}
--- a/dumb/src/it/load669.c
+++ /dev/null
@@ -1,42 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadmod.c - Code to read a 669 Composer module / / \ \
- * file, opening and closing it for | < / \_
- * you. | \/ /\ /
- * \_ / > /
- * By Chris Moeller | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_669_quick(): loads a 669 file into a DUH struct, returning a
- * pointer to the DUH struct. When you have finished with it, you must
- * pass the pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_669_quick(const char *filename)
-{- DUH *duh;
- DUMBFILE *f = dumbfile_open(filename);
-
- if (!f)
- return NULL;
-
- duh = dumb_read_669_quick(f);
-
- dumbfile_close(f);
-
- return duh;
-}
--- a/dumb/src/it/load6692.c
+++ /dev/null
@@ -1,34 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadmod2.c - Code to read a 669 Composer module / / \ \
- * file, opening and closing it for | < / \_
- * you, and do an initial run-through. | \/ /\ /
- * \_ / > /
- * By Chris Moeller | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_669(): loads a 669 file into a DUH struct, returning a pointer
- * to the DUH struct. When you have finished with it, you must pass the
- * pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_669(const char *filename)
-{- DUH *duh = dumb_load_669_quick(filename);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/loadamf.c
+++ /dev/null
@@ -1,42 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadamf.c - Code to read a DSMI AMF module file, / / \ \
- * opening and closing it for you. | < / \_
- * | \/ /\ /
- * \_ / > /
- * By Chris Moeller. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_amf_quick(): loads a AMF file into a DUH struct, returning a
- * pointer to the DUH struct. When you have finished with it, you must
- * pass the pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_amf_quick(const char *filename)
-{- DUH *duh;
- DUMBFILE *f = dumbfile_open(filename);
-
- if (!f)
- return NULL;
-
- duh = dumb_read_amf_quick(f);
-
- dumbfile_close(f);
-
- return duh;
-}
--- a/dumb/src/it/loadamf2.c
+++ /dev/null
@@ -1,34 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadamf2.c - Code to read a DSMI AMF module file, / / \ \
- * opening and closing it for you, and | < / \_
- * do an initial run-through. | \/ /\ /
- * \_ / > /
- * | \ / /
- * By Chris Moeller. | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_amf(): loads a AMF file into a DUH struct, returning a pointer
- * to the DUH struct. When you have finished with it, you must pass the
- * pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_amf(const char *filename)
-{- DUH *duh = dumb_load_amf_quick(filename);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/loadany.c
+++ /dev/null
@@ -1,38 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadany.c - Code to detect and read any of the / / \ \
- * module formats supported by DUMB, | < / \_
- * opening and closing the file for you. | \/ /\ /
- * \_ / > /
- * By Chris Moeller. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-DUH *dumb_load_any_quick(const char *filename, int restrict_, int subsong)
-{- DUH *duh;
- DUMBFILE *f = dumbfile_open(filename);
-
- if (!f)
- return NULL;
-
- duh = dumb_read_any_quick(f, restrict_, subsong);
-
- dumbfile_close(f);
-
- return duh;
-}
--- a/dumb/src/it/loadany2.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadany2.c - Code to detect and read any of the / / \ \
- * module formats supported by DUMB, | < / \_
- * opening and closing the file for | \/ /\ /
- * you, and do an initial run-through. \_ / > /
- * | \ / /
- * by Chris Moeller. | ' /
- * \__/
- */
-
-#include "dumb.h"
-
-
-
-DUH *dumb_load_any(const char *filename, int restrict_, int subsong)
-{- DUH *duh = dumb_load_any_quick(filename, restrict_, subsong);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/loadasy.c
+++ /dev/null
@@ -1,42 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadasy.c - Code to read an ASYLUM Music Format / / \ \
- * module file, opening and closing it | < / \_
- * for you. | \/ /\ /
- * \_ / > /
- * By Chris Moeller. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_asy_quick(): loads a AMF file into a DUH struct, returning a
- * pointer to the DUH struct. When you have finished with it, you must
- * pass the pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_asy_quick(const char *filename)
-{- DUH *duh;
- DUMBFILE *f = dumbfile_open(filename);
-
- if (!f)
- return NULL;
-
- duh = dumb_read_asy_quick(f);
-
- dumbfile_close(f);
-
- return duh;
-}
--- a/dumb/src/it/loadasy2.c
+++ /dev/null
@@ -1,34 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadasy2.c - Code to read an ASYLUM Music Format / / \ \
- * module file, opening and closing it | < / \_
- * for you, and do an initial run- | \/ /\ /
- * through. \_ / > /
- * | \ / /
- * By Chris Moeller. | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_asy(): loads a AMF file into a DUH struct, returning a pointer
- * to the DUH struct. When you have finished with it, you must pass the
- * pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_asy(const char *filename)
-{- DUH *duh = dumb_load_asy_quick(filename);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/loadmod.c
+++ /dev/null
@@ -1,42 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadmod.c - Code to read a good old-fashioned / / \ \
- * Amiga module file, opening and | < / \_
- * closing it for you. | \/ /\ /
- * \_ / > /
- * By entheh. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_mod_quick(): loads a MOD file into a DUH struct, returning a
- * pointer to the DUH struct. When you have finished with it, you must
- * pass the pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_mod_quick(const char *filename, int restrict_)
-{- DUH *duh;
- DUMBFILE *f = dumbfile_open(filename);
-
- if (!f)
- return NULL;
-
- duh = dumb_read_mod_quick(f, restrict_);
-
- dumbfile_close(f);
-
- return duh;
-}
--- a/dumb/src/it/loadmod2.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadmod2.c - Function to read a good old- / / \ \
- * fashioned Amiga module file, | < / \_
- * opening and closing it for you, | \/ /\ /
- * and do an initial run-through. \_ / > /
- * | \ / /
- * Split off from loadmod.c by entheh. | ' /
- * \__/
- */
-
-#include "dumb.h"
-
-
-
-DUH *dumb_load_mod(const char *filename, int restrict_)
-{- DUH *duh = dumb_load_mod_quick(filename, restrict_);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/loadmtm.c
+++ /dev/null
@@ -1,42 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadmtm.c - Code to read a MultiTracker Module / / \ \
- * file, opening and closing it for | < / \_
- * you. | \/ /\ /
- * \_ / > /
- * By Chris Moeller | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_mtm_quick(): loads a MTM file into a DUH struct, returning a
- * pointer to the DUH struct. When you have finished with it, you must
- * pass the pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_mtm_quick(const char *filename)
-{- DUH *duh;
- DUMBFILE *f = dumbfile_open(filename);
-
- if (!f)
- return NULL;
-
- duh = dumb_read_mtm_quick(f);
-
- dumbfile_close(f);
-
- return duh;
-}
--- a/dumb/src/it/loadmtm2.c
+++ /dev/null
@@ -1,34 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadmtm2.c - Code to read a MultiTracker Module / / \ \
- * file, opening and closing it for | < / \_
- * you, and do an initial run-through. | \/ /\ /
- * \_ / > /
- * By Chris Moeller | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_mtm(): loads a MTM file into a DUH struct, returning a pointer
- * to the DUH struct. When you have finished with it, you must pass the
- * pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_mtm(const char *filename)
-{- DUH *duh = dumb_load_mtm_quick(filename);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/loadokt.c
+++ /dev/null
@@ -1,42 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadokt.c - Code to read an Oktalyzer module / / \ \
- * file, opening and closing it for | < / \_
- * you. | \/ /\ /
- * \_ / > /
- * By Chris Moeller. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_okt_quick(): loads an OKT file into a DUH struct, returning a
- * pointer to the DUH struct. When you have finished with it, you must
- * pass the pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_okt_quick(const char *filename)
-{- DUH *duh;
- DUMBFILE *f = dumbfile_open(filename);
-
- if (!f)
- return NULL;
-
- duh = dumb_read_okt_quick(f);
-
- dumbfile_close(f);
-
- return duh;
-}
--- a/dumb/src/it/loadokt2.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadokt2.c - Function to read an Oktalyzer / / \ \
- * module file, opening and closing | < / \_
- * it for you, and do an initial run- | \/ /\ /
- * through. \_ / > /
- * | \ / /
- * By Chris Moeller. | ' /
- * \__/
- */
-
-#include "dumb.h"
-
-
-
-DUH *dumb_load_okt(const char *filename)
-{- DUH *duh = dumb_load_okt_quick(filename);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/loadoldpsm.c
+++ /dev/null
@@ -1,43 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadoldpsm.c - Code to read a ProTracker Studio / / \ \
- * file, opening and closing it for | < / \_
- * you. | \/ /\ /
- * \_ / > /
- * By Chris Moeller. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_old_psm_quick(): loads an old PSM file into a DUH struct,
- * returning a pointer to the DUH struct. When you have finished with it,
- * you must pass the pointer to unload_duh() so that the memory can be
- * freed.
- */
-DUH *dumb_load_old_psm_quick(const char *filename)
-{- DUH *duh;
- DUMBFILE *f = dumbfile_open(filename);
-
- if (!f)
- return NULL;
-
- duh = dumb_read_old_psm_quick(f);
-
- dumbfile_close(f);
-
- return duh;
-}
--- a/dumb/src/it/loadoldpsm2.c
+++ /dev/null
@@ -1,34 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadoldpsm2.c - Code to read a ProTracker Studio / / \ \
- * file, opening and closing it for | < / \_
- * you, and do an initial run- | \/ /\ /
- * through. \_ / > /
- * | \ / /
- * By Chris Moeller. | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_old_psm(): loads an old PSM file into a DUH struct, returning
- * a pointer to the DUH struct. When you have finished with it, you must
- * pass the pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_old_psm(const char *filename)
-{- DUH *duh = dumb_load_old_psm_quick(filename);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/loadpsm.c
+++ /dev/null
@@ -1,42 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadpsm.c - Code to read a ProTracker Studio / / \ \
- * file, opening and closing it for | < / \_
- * you. | \/ /\ /
- * \_ / > /
- * By Chris Moeller. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_psm_quick(): loads a PSM file into a DUH struct, returning a
- * pointer to the DUH struct. When you have finished with it, you must
- * pass the pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_psm_quick(const char *filename, int subsong)
-{- DUH *duh;
- DUMBFILE *f = dumbfile_open(filename);
-
- if (!f)
- return NULL;
-
- duh = dumb_read_psm_quick(f, subsong);
-
- dumbfile_close(f);
-
- return duh;
-}
--- a/dumb/src/it/loadpsm2.c
+++ /dev/null
@@ -1,34 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadpsm2.c - Code to read a ProTracker Studio / / \ \
- * file, opening and closing it for | < / \_
- * you, and do an initial run-through. | \/ /\ /
- * \_ / > /
- * By Chris Moeller. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_psm(): loads a PSM file into a DUH struct, returning a pointer
- * to the DUH struct. When you have finished with it, you must pass the
- * pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_psm(const char *filename, int subsong)
-{- DUH *duh = dumb_load_psm_quick(filename, subsong);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/loadptm.c
+++ /dev/null
@@ -1,42 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadptm.c - Code to read a Poly Tracker v2.03 / / \ \
- * file, opening and closing it for | < / \_
- * you. | \/ /\ /
- * \_ / > /
- * By Chris Moeller. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_ptm_quick(): loads a PTM file into a DUH struct, returning a
- * pointer to the DUH struct. When you have finished with it, you must
- * pass the pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_ptm_quick(const char *filename)
-{- DUH *duh;
- DUMBFILE *f = dumbfile_open(filename);
-
- if (!f)
- return NULL;
-
- duh = dumb_read_ptm_quick(f);
-
- dumbfile_close(f);
-
- return duh;
-}
--- a/dumb/src/it/loadptm2.c
+++ /dev/null
@@ -1,34 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadptm2.c - Code to read a Poly Tracker v2.03 / / \ \
- * file, opening and closing it for | < / \_
- * you, and do an initial run-through. | \/ /\ /
- * \_ / > /
- * By Chris Moeller. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_ptm(): loads a PTM file into a DUH struct, returning a pointer
- * to the DUH struct. When you have finished with it, you must pass the
- * pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_ptm(const char *filename)
-{- DUH *duh = dumb_load_ptm_quick(filename);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/loadriff.c
+++ /dev/null
@@ -1,42 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadriff.c - Code to read a RIFF module file / / \ \
- * opening and closing it for you. | < / \_
- * | \/ /\ /
- * \_ / > /
- * By Chris Moeller. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_riff_quick(): loads a RIFF file into a DUH struct, returning
- * a pointer to the DUH struct. When you have finished with it, you must
- * pass the pointer to unload_duh() so that the memory can be freed.
- */
-DUH * dumb_load_riff_quick( const char *filename )
-{- DUH * duh;
- DUMBFILE * f = dumbfile_open( filename );
-
- if ( ! f )
- return NULL;
-
- duh = dumb_read_riff_quick( f );
-
- dumbfile_close( f );
-
- return duh;
-}
--- a/dumb/src/it/loadriff2.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadriff2.c - Code to read a RIFF module file / / \ \
- * opening and closing it for you, | < / \_
- * and do an initial run-through. | \/ /\ /
- * \_ / > /
- * By Chris Moeller. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-
-
-
-DUH *dumb_load_riff(const char *filename)
-{- DUH *duh = dumb_load_riff_quick(filename);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/loads3m.c
+++ /dev/null
@@ -1,42 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loads3m.c - Code to read a ScreamTracker 3 / / \ \
- * file, opening and closing it for | < / \_
- * you. | \/ /\ /
- * \_ / > /
- * By entheh. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_s3m_quick(): loads an S3M file into a DUH struct, returning
- * a pointer to the DUH struct. When you have finished with it, you must
- * pass the pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_s3m_quick(const char *filename)
-{- DUH *duh;
- DUMBFILE *f = dumbfile_open(filename);
-
- if (!f)
- return NULL;
-
- duh = dumb_read_s3m_quick(f);
-
- dumbfile_close(f);
-
- return duh;
-}
--- a/dumb/src/it/loads3m2.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loads3m2.c - Function to read a ScreamTracker 3 / / \ \
- * file, opening and closing it for | < / \_
- * you, and do an initial run-through. | \/ /\ /
- * \_ / > /
- * Split off from loads3m.c by entheh. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-
-
-
-DUH *dumb_load_s3m(const char *filename)
-{- DUH *duh = dumb_load_s3m_quick(filename);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/loadstm.c
+++ /dev/null
@@ -1,42 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadstm.c - Code to read a ScreamTracker 2 / / \ \
- * file, opening and closing it for | < / \_
- * you. | \/ /\ /
- * \_ / > /
- * By Chris Moeller. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_stm_quick(): loads an STM file into a DUH struct, returning a
- * pointer to the DUH struct. When you have finished with it, you must
- * pass the pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_stm_quick(const char *filename)
-{- DUH *duh;
- DUMBFILE *f = dumbfile_open(filename);
-
- if (!f)
- return NULL;
-
- duh = dumb_read_stm_quick(f);
-
- dumbfile_close(f);
-
- return duh;
-}
--- a/dumb/src/it/loadstm2.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadstm2.c - Function to read a ScreamTracker 2 / / \ \
- * file, opening and closing it for | < / \_
- * you, and do an initial run-through. | \/ /\ /
- * \_ / > /
- * By Chris Moeller. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-
-
-
-DUH *dumb_load_stm(const char *filename)
-{- DUH *duh = dumb_load_stm_quick(filename);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/loadxm.c
+++ /dev/null
@@ -1,42 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadxm.c - Code to read a Fast Tracker II / / \ \
- * file, opening and closing it for | < / \_
- * you. | \/ /\ /
- * \_ / > /
- * By entheh. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-/* dumb_load_xm_quick(): loads an XM file into a DUH struct, returning a
- * pointer to the DUH struct. When you have finished with it, you must
- * pass the pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_load_xm_quick(const char *filename)
-{- DUH *duh;
- DUMBFILE *f = dumbfile_open(filename);
-
- if (!f)
- return NULL;
-
- duh = dumb_read_xm_quick(f);
-
- dumbfile_close(f);
-
- return duh;
-}
--- a/dumb/src/it/loadxm2.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * loadxm2.c - Function to read a Fast Tracker II / / \ \
- * file, opening and closing it for | < / \_
- * you, and do an initial run-through. | \/ /\ /
- * \_ / > /
- * Split off from loadxm.c by entheh. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-
-
-
-DUH *dumb_load_xm(const char *filename)
-{- DUH *duh = dumb_load_xm_quick(filename);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/ptmeffect.c
+++ /dev/null
@@ -1,125 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * ptmeffect.c - Code for converting PTM / / \ \
- * effects to IT effects. | < / \_
- * | \/ /\ /
- * By Chris Moeller. Based on xmeffect.c \_ / > /
- * by Julien Cugniere. | \ / /
- * | ' /
- * \__/
- */
-
-
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-
-void _dumb_it_ptm_convert_effect(int effect, int value, IT_ENTRY *entry)
-{- if (effect >= PTM_N_EFFECTS)
- return;
-
- /* Linearisation of the effect number... */
- if (effect == PTM_E) {- effect = PTM_EBASE + HIGH(value);
- value = LOW(value);
- }
-
- /* convert effect */
- entry->mask |= IT_ENTRY_EFFECT;
- switch (effect) {-
- case PTM_APPREGIO: effect = IT_ARPEGGIO; break;
- case PTM_PORTAMENTO_UP: effect = IT_PORTAMENTO_UP; break;
- case PTM_PORTAMENTO_DOWN: effect = IT_PORTAMENTO_DOWN; break;
- case PTM_TONE_PORTAMENTO: effect = IT_TONE_PORTAMENTO; break;
- case PTM_VIBRATO: effect = IT_VIBRATO; break;
- case PTM_VOLSLIDE_TONEPORTA: effect = IT_VOLSLIDE_TONEPORTA; break;
- case PTM_VOLSLIDE_VIBRATO: effect = IT_VOLSLIDE_VIBRATO; break;
- case PTM_TREMOLO: effect = IT_TREMOLO; break;
- case PTM_SAMPLE_OFFSET: effect = IT_SET_SAMPLE_OFFSET; break;
- case PTM_VOLUME_SLIDE: effect = IT_VOLUME_SLIDE; break;
- case PTM_POSITION_JUMP: effect = IT_JUMP_TO_ORDER; break;
- case PTM_SET_CHANNEL_VOLUME: effect = IT_SET_CHANNEL_VOLUME; break;
- case PTM_PATTERN_BREAK: effect = IT_BREAK_TO_ROW; break;
- case PTM_SET_GLOBAL_VOLUME: effect = IT_SET_GLOBAL_VOLUME; break;
- case PTM_RETRIGGER: effect = IT_RETRIGGER_NOTE; break;
- case PTM_FINE_VIBRATO: effect = IT_FINE_VIBRATO; break;
-
- /* TODO properly */
- case PTM_NOTE_SLIDE_UP: effect = IT_PTM_NOTE_SLIDE_UP; break;
- case PTM_NOTE_SLIDE_DOWN: effect = IT_PTM_NOTE_SLIDE_DOWN; break;
- case PTM_NOTE_SLIDE_UP_RETRIG: effect = IT_PTM_NOTE_SLIDE_UP_RETRIG; break;
- case PTM_NOTE_SLIDE_DOWN_RETRIG: effect = IT_PTM_NOTE_SLIDE_DOWN_RETRIG; break;
-
- case PTM_SET_TEMPO_BPM:
- effect = (value < 0x20) ? (IT_SET_SPEED) : (IT_SET_SONG_TEMPO);
- break;
-
- case PTM_EBASE+PTM_E_SET_FINETUNE: effect = SBASE+IT_S_FINETUNE; break; /** TODO */
- case PTM_EBASE+PTM_E_SET_LOOP: effect = SBASE+IT_S_PATTERN_LOOP; break;
- case PTM_EBASE+PTM_E_NOTE_CUT: effect = SBASE+IT_S_DELAYED_NOTE_CUT; break;
- case PTM_EBASE+PTM_E_NOTE_DELAY: effect = SBASE+IT_S_NOTE_DELAY; break;
- case PTM_EBASE+PTM_E_PATTERN_DELAY: effect = SBASE+IT_S_PATTERN_DELAY; break;
- case PTM_EBASE+PTM_E_SET_PANNING: effect = SBASE+IT_S_SET_PAN; break;
-
- case PTM_EBASE+PTM_E_FINE_VOLSLIDE_UP:
- effect = IT_VOLUME_SLIDE;
- value = EFFECT_VALUE(value, 0xF);
- break;
-
- case PTM_EBASE + PTM_E_FINE_VOLSLIDE_DOWN:
- effect = IT_VOLUME_SLIDE;
- value = EFFECT_VALUE(0xF, value);
- break;
-
- case PTM_EBASE + PTM_E_FINE_PORTA_UP:
- effect = IT_PORTAMENTO_UP;
- value = EFFECT_VALUE(0xF, value);
- break;
-
- case PTM_EBASE + PTM_E_FINE_PORTA_DOWN:
- effect = IT_PORTAMENTO_DOWN;
- value = EFFECT_VALUE(0xF, value);
- break;
-
- case PTM_EBASE + PTM_E_RETRIG_NOTE:
- effect = IT_XM_RETRIGGER_NOTE;
- value = EFFECT_VALUE(0, value);
- break;
-
- case PTM_EBASE + PTM_E_SET_VIBRATO_CONTROL:
- effect = SBASE+IT_S_SET_VIBRATO_WAVEFORM;
- value &= ~4; /** TODO: value&4 -> don't retrig wave */
- break;
-
- case PTM_EBASE + PTM_E_SET_TREMOLO_CONTROL:
- effect = SBASE+IT_S_SET_TREMOLO_WAVEFORM;
- value &= ~4; /** TODO: value&4 -> don't retrig wave */
- break;
-
- default:
- /* user effect (often used in demos for synchronisation) */
- entry->mask &= ~IT_ENTRY_EFFECT;
- }
-
- /* Inverse linearisation... */
- if (effect >= SBASE && effect < SBASE+16) {- value = EFFECT_VALUE(effect-SBASE, value);
- effect = IT_S;
- }
-
- entry->effect = effect;
- entry->effectvalue = value;
-}
--- a/dumb/src/it/read669.c
+++ /dev/null
@@ -1,448 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * read669.c - Code to read a 669 Composer module / / \ \
- * from an open file. | < / \_
- * | \/ /\ /
- * By Chris Moeller. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-static int it_669_read_pattern(IT_PATTERN *pattern, DUMBFILE *f, int tempo, int breakpoint, unsigned char *buffer, int * used_channels)
-{- int pos;
- int channel;
- int row;
- IT_ENTRY *entry;
-
- pattern->n_rows = 64;
-
- if (dumbfile_getnc((char *)buffer, 64 * 3 * 8, f) < 64 * 3 * 8)
- return -1;
-
- /* compute number of entries */
- pattern->n_entries = 64 + 1; /* Account for the row end markers, speed command */
- if (breakpoint < 63) pattern->n_entries++; /* and break to row 0 */
-
- pos = 0;
- for (row = 0; row < 64; row++) {- for (channel = 0; channel < 8; channel++) {- if (buffer[pos+0] != 0xFF || buffer[pos+2] != 0xFF)
- pattern->n_entries++;
- pos += 3;
- }
- }
-
- pattern->entry = malloc(pattern->n_entries * sizeof(*pattern->entry));
- if (!pattern->entry)
- return -1;
-
- if (breakpoint == 63) breakpoint++;
-
- entry = pattern->entry;
-
- entry->channel = 8;
- entry->mask = IT_ENTRY_EFFECT;
- entry->effect = IT_SET_SPEED;
- entry->effectvalue = tempo;
- entry++;
-
- pos = 0;
- for (row = 0; row < 64; row++) {-
- if (row == breakpoint) {- entry->channel = 8;
- entry->mask = IT_ENTRY_EFFECT;
- entry->effect = IT_BREAK_TO_ROW;
- entry->effectvalue = 0;
- entry++;
- }
-
- for (channel = 0; channel < 8; channel++) {- if (buffer[pos+0] != 0xFF || buffer[pos+2] != 0xFF) {- entry->channel = channel;
- entry->mask = 0;
-
- if (buffer[pos+0] < 0xFE) {- entry->mask |= IT_ENTRY_NOTE | IT_ENTRY_INSTRUMENT;
- entry->note = (buffer[pos+0] >> 2) + 36;
- entry->instrument = (((buffer[pos+0] << 4) | (buffer[pos+1] >> 4)) & 0x3F) + 1;
- }
- if (buffer[pos+0] <= 0xFE) {- entry->mask |= IT_ENTRY_VOLPAN;
- entry->volpan = ((buffer[pos+1] & 15) << 6) / 15;
- if (*used_channels < channel + 1) *used_channels = channel + 1;
- }
- if (buffer[pos+2] != 0xFF) {- entry->mask |= IT_ENTRY_EFFECT;
- entry->effectvalue = buffer[pos+2] & 15;
- switch (buffer[pos+2] >> 4) {- case 0:
- entry->effect = IT_PORTAMENTO_UP;
- break;
- case 1:
- entry->effect = IT_PORTAMENTO_DOWN;
- break;
- case 2:
- entry->effect = IT_TONE_PORTAMENTO;
- break;
- case 3:
- entry->effect = IT_S;
- entry->effectvalue += IT_S_FINETUNE * 16 + 8;
- break;
- case 4:
- entry->effect = IT_VIBRATO;
- // XXX speed unknown
- entry->effectvalue |= 0x10;
- break;
- case 5:
- if (entry->effectvalue) {- entry->effect = IT_SET_SPEED;
- } else {- entry->mask &= ~IT_ENTRY_EFFECT;
- }
- break;
-#if 0
- /* dunno about this, really... */
- case 6:
- if (entry->effectvalue == 0) {- entry->effect = IT_PANNING_SLIDE;
- entry->effectvalue = 0xFE;
- } else if (entry->effectvalue == 1) {- entry->effect = IT_PANNING_SLIDE;
- entry->effectvalue = 0xEF;
- } else {- entry->mask &= ~IT_ENTRY_EFFECT;
- }
- break;
-#endif
- default:
- entry->mask &= ~IT_ENTRY_EFFECT;
- break;
- }
- if (*used_channels < channel + 1) *used_channels = channel + 1;
- }
-
- entry++;
- }
- pos += 3;
- }
- IT_SET_END_ROW(entry);
- entry++;
- }
-
- return 0;
-}
-
-
-
-static int it_669_read_sample_header(IT_SAMPLE *sample, DUMBFILE *f)
-{- dumbfile_getnc((char *)sample->name, 13, f);
- sample->name[13] = 0;
-
- sample->filename[0] = 0;
-
- sample->length = dumbfile_igetl(f);
- sample->loop_start = dumbfile_igetl(f);
- sample->loop_end = dumbfile_igetl(f);
-
- if (dumbfile_error(f))
- return -1;
-
- if (sample->length <= 0) {- sample->flags = 0;
- return 0;
- }
-
- sample->flags = IT_SAMPLE_EXISTS;
-
- sample->global_volume = 64;
- sample->default_volume = 64;
-
- sample->default_pan = 0;
- sample->C5_speed = 8363;
- // the above line might be wrong
-
- if ((sample->loop_end > sample->length) && !(sample->loop_start))
- sample->loop_end = 0;
-
- if (sample->loop_end > sample->length)
- sample->loop_end = sample->length;
-
- if (sample->loop_end - sample->loop_start > 2)
- sample->flags |= IT_SAMPLE_LOOP;
-
- sample->vibrato_speed = 0;
- sample->vibrato_depth = 0;
- sample->vibrato_rate = 0;
- sample->vibrato_waveform = 0; // do we have to set _all_ these?
- sample->finetune = 0;
- sample->max_resampling_quality = -1;
-
- return 0;
-}
-
-
-
-static int it_669_read_sample_data(IT_SAMPLE *sample, DUMBFILE *f)
-{- long i;
- long truncated_size;
-
- /* let's get rid of the sample data coming after the end of the loop */
- if ((sample->flags & IT_SAMPLE_LOOP) && sample->loop_end < sample->length) {- truncated_size = sample->length - sample->loop_end;
- sample->length = sample->loop_end;
- } else {- truncated_size = 0;
- }
-
- sample->data = malloc(sample->length);
-
- if (!sample->data)
- return -1;
-
- if (sample->length)
- {- i = dumbfile_getnc(sample->data, sample->length, f);
-
- if (i < sample->length) {- //return -1;
- // ficking truncated files
- if (i <= 0) {- sample->flags = 0;
- return 0;
- }
- sample->length = i;
- if (sample->loop_end > i) sample->loop_end = i;
- } else {- /* skip truncated data */
- dumbfile_skip(f, truncated_size);
- // Should we be truncating it?
- if (dumbfile_error(f))
- return -1;
- }
-
- for (i = 0; i < sample->length; i++)
- ((signed char *)sample->data)[i] ^= 0x80;
- }
-
- return 0;
-}
-
-
-static DUMB_IT_SIGDATA *it_669_load_sigdata(DUMBFILE *f, int * ext)
-{- DUMB_IT_SIGDATA *sigdata;
- int n_channels;
- int i;
- unsigned char tempolist[128];
- unsigned char breaklist[128];
-
- i = dumbfile_igetw(f);
- if (i != 0x6669 && i != 0x4E4A) return NULL;
-
- *ext = (i == 0x4E4A);
-
- sigdata = malloc(sizeof(*sigdata));
- if (!sigdata) {- return NULL;
- }
-
- if (dumbfile_getnc((char *)sigdata->name, 36, f) < 36) {- free(sigdata);
- return NULL;
- }
- sigdata->name[36] = 0;
-
- sigdata->order = NULL;
- sigdata->instrument = NULL;
- sigdata->pattern = NULL;
- sigdata->midi = NULL;
- sigdata->checkpoint = NULL;
- sigdata->sample = NULL;
-
- sigdata->n_instruments = 0;
-
- sigdata->song_message = malloc(72 + 2 + 1);
- if (!sigdata->song_message) {- free(sigdata);
- return NULL;
- }
- if (dumbfile_getnc((char *)sigdata->song_message, 36, f) < 36) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- sigdata->song_message[36] = 13;
- sigdata->song_message[36 + 1] = 10;
- if (dumbfile_getnc((char *)sigdata->song_message + 38, 36, f) < 36) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- sigdata->song_message[38 + 36] = 0;
-
- sigdata->n_samples = dumbfile_getc(f);
- sigdata->n_patterns = dumbfile_getc(f);
- sigdata->restart_position = dumbfile_getc(f);
-
- if ((sigdata->n_samples) > 64 || (sigdata->n_patterns > 128)) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- sigdata->order = malloc(128); /* We may need to scan the extra ones! */
- if (!sigdata->order) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- if (dumbfile_getnc((char *)sigdata->order, 128, f) < 128) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- for (i = 0; i < 128; i++) {- if (sigdata->order[i] == 255) break;
- if (sigdata->order[i] >= sigdata->n_patterns) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- }
- if (!i) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- sigdata->n_orders = i;
-
- if (dumbfile_getnc((char *)tempolist, 128, f) < 128) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- if (dumbfile_getnc((char *)breaklist, 128, f) < 128) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
- if (!sigdata->sample) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- for (i = 0; i < sigdata->n_samples; i++)
- sigdata->sample[i].data = NULL;
-
- for (i = 0; i < sigdata->n_samples; i++) {- if (it_669_read_sample_header(&sigdata->sample[i], f)) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- }
-
- /* May as well try to save a tiny bit of memory. */
- if (sigdata->n_orders < 128) {- unsigned char *order = realloc(sigdata->order, sigdata->n_orders);
- if (order) sigdata->order = order;
- }
-
- sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
- if (!sigdata->pattern) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (i = 0; i < sigdata->n_patterns; i++)
- sigdata->pattern[i].entry = NULL;
-
- n_channels = 0;
-
- /* Read in the patterns */
- {- unsigned char *buffer = malloc(64 * 3 * 8); /* 64 rows * 3 bytes * 8 channels */
- if (!buffer) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (i = 0; i < sigdata->n_patterns; i++) {- if (it_669_read_pattern(&sigdata->pattern[i], f, tempolist[i], breaklist[i], buffer, &n_channels) != 0) {- free(buffer);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- }
- free(buffer);
- }
-
- sigdata->n_pchannels = n_channels;
-
- /* And finally, the sample data */
- for (i = 0; i < sigdata->n_samples; i++) {- if (it_669_read_sample_data(&sigdata->sample[i], f)) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- }
-
- /* Now let's initialise the remaining variables, and we're done! */
- sigdata->flags = IT_OLD_EFFECTS | IT_LINEAR_SLIDES | IT_STEREO | IT_WAS_A_669;
-
- sigdata->global_volume = 128;
- sigdata->mixing_volume = 48;
- sigdata->speed = 4;
- sigdata->tempo = 78;
- sigdata->pan_separation = 128;
-
- memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
-
- for (i = 0; i < DUMB_IT_N_CHANNELS; i += 2) {- int sep = 32 * dumb_it_default_panning_separation / 100;
- sigdata->channel_pan[i+0] = 32 + sep;
- sigdata->channel_pan[i+1] = 32 - sep;
- }
-
- _dumb_it_fix_invalid_orders(sigdata);
-
- return sigdata;
-}
-
-
-
-DUH *dumb_read_669_quick(DUMBFILE *f)
-{- sigdata_t *sigdata;
- int ext;
-
- DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
-
- sigdata = it_669_load_sigdata(f, &ext);
-
- if (!sigdata)
- return NULL;
-
- {- const char *tag[2][2];
- tag[0][0] = "TITLE";
- tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
- tag[1][0] = "FORMAT";
- tag[1][1] = ext ? "669 Extended" : "669";
- return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
- }
-}
--- a/dumb/src/it/read6692.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * read6692.c - Code to read a 669 Composer module / / \ \
- * from an open file, and do an initial | < / \_
- * run-through. | \/ /\ /
- * By Chris Moeller. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-
-
-
-DUH *dumb_read_669(DUMBFILE *f)
-{- DUH *duh = dumb_read_669_quick(f);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/readam.c
+++ /dev/null
@@ -1,789 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readam.c - Code to read a RIFF AM module / / \ \
- * from a parsed RIFF structure. | < / \_
- * | \/ /\ /
- * By Chris Moeller. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-#include "internal/riff.h"
-
-static int it_riff_am_process_sample( IT_SAMPLE * sample, DUMBFILE * f, int len, int ver )
-{- int header_length;
- int default_pan;
- int default_volume;
- int flags;
- int length;
- int length_bytes;
- int loop_start;
- int loop_end;
- int sample_rate;
-
- long start = dumbfile_pos( f );
-
- if ( ver == 0 )
- {- if ( len < 0x38 )
- return -1;
-
- header_length = 0x38;
-
- dumbfile_getnc( (char *) sample->name, 28, f );
- sample->name[ 28 ] = 0;
-
- default_pan = dumbfile_getc( f );
- default_volume = dumbfile_getc( f );
- flags = dumbfile_igetw( f );
- length = dumbfile_igetl( f );
- loop_start = dumbfile_igetl( f );
- loop_end = dumbfile_igetl( f );
- sample_rate = dumbfile_igetl( f );
- }
- else
- {- if (len < 4) return -1;
-
- header_length = dumbfile_igetl( f );
- if ( header_length < 0x40 )
- return -1;
- if ( header_length + 4 > len )
- return -1;
-
- start += 4;
- len -= 4;
-
- dumbfile_getnc( (char *) sample->name, 32, f );
-
- default_pan = dumbfile_igetw( f );
- default_volume = dumbfile_igetw( f );
- flags = dumbfile_igetw( f );
- dumbfile_skip( f, 2 );
- length = dumbfile_igetl( f );
- loop_start = dumbfile_igetl( f );
- loop_end = dumbfile_igetl( f );
- sample_rate = dumbfile_igetl( f );
-
- if ( default_pan > 0x7FFF || default_volume > 0x7FFF )
- return -1;
-
- default_pan = default_pan * 64 / 32767;
- default_volume = default_volume * 64 / 32767;
- }
-
- if ( ! length ) {- sample->flags &= ~IT_SAMPLE_EXISTS;
- return 0;
- }
-
- if ( flags & ~( 0x8000 | 0x80 | 0x20 | 0x10 | 0x08 | 0x04 ) )
- return -1;
-
- length_bytes = length << ( ( flags & 0x04 ) >> 2 );
-
- if ( length_bytes + header_length > len )
- return -1;
-
- sample->flags = 0;
-
- if ( flags & 0x80 ) sample->flags |= IT_SAMPLE_EXISTS;
- if ( flags & 0x04 ) sample->flags |= IT_SAMPLE_16BIT;
-
- sample->length = length;
- sample->loop_start = loop_start;
- sample->loop_end = loop_end;
- sample->C5_speed = sample_rate;
- sample->default_volume = default_volume;
- sample->default_pan = default_pan | ( ( flags & 0x20 ) << 2 );
- sample->filename[0] = 0;
- sample->global_volume = 64;
- sample->vibrato_speed = 0;
- sample->vibrato_depth = 0;
- sample->vibrato_rate = 0;
- sample->vibrato_waveform = IT_VIBRATO_SINE;
- sample->finetune = 0;
- sample->max_resampling_quality = -1;
-
- if ( flags & 0x08 )
- {- if (((unsigned int)sample->loop_end <= (unsigned int)sample->length) &&
- ((unsigned int)sample->loop_start < (unsigned int)sample->loop_end))
- {- sample->length = sample->loop_end;
- sample->flags |= IT_SAMPLE_LOOP;
- if ( flags & 0x10 ) sample->flags |= IT_SAMPLE_PINGPONG_LOOP;
- }
- }
-
- length_bytes = sample->length << ( ( flags & 0x04 ) >> 2 );
-
- sample->data = malloc( length_bytes );
- if ( ! sample->data )
- return -1;
-
- if ( dumbfile_seek( f, start + header_length, DFS_SEEK_SET ) )
- return -1;
-
- dumbfile_getnc( sample->data, length_bytes, f );
-
- return 0;
-}
-
-static int it_riff_am_process_pattern( IT_PATTERN * pattern, DUMBFILE * f, int len, int ver )
-{- int nrows, row;
- long start, end;
- unsigned flags;
- int p, q, r;
- IT_ENTRY * entry;
-
- nrows = dumbfile_getc( f ) + 1;
-
- pattern->n_rows = nrows;
-
- len -= 1;
-
- pattern->n_entries = 0;
-
- row = 0;
-
- start = dumbfile_pos( f );
- end = start + len;
-
- while ( (row < nrows) && !dumbfile_error( f ) && (dumbfile_pos( f ) < end) ) {- p = dumbfile_getc( f );
- if ( ! p ) {- ++ row;
- continue;
- }
-
- flags = p & 0xE0;
-
- if (flags) {- ++ pattern->n_entries;
- if (flags & 0x80) dumbfile_skip( f, 2 );
- if (flags & 0x40) dumbfile_skip( f, 2 );
- if (flags & 0x20) dumbfile_skip( f, 1 );
- }
- }
-
- if ( ! pattern->n_entries ) return 0;
-
- pattern->n_entries += nrows;
-
- pattern->entry = malloc( pattern->n_entries * sizeof( * pattern->entry ) );
- if ( ! pattern->entry ) return -1;
-
- entry = pattern->entry;
-
- row = 0;
-
- dumbfile_seek( f, start, DFS_SEEK_SET );
-
- while ( ( row < nrows ) && !dumbfile_error( f ) && ( dumbfile_pos( f ) < end ) )
- {- p = dumbfile_getc( f );
-
- if ( ! p )
- {- IT_SET_END_ROW( entry );
- ++ entry;
- ++ row;
- continue;
- }
-
- flags = p;
- entry->channel = flags & 0x1F;
- entry->mask = 0;
-
- if (flags & 0xE0)
- {- if ( flags & 0x80 )
- {- q = dumbfile_getc( f );
- r = dumbfile_getc( f );
- _dumb_it_xm_convert_effect( r, q, entry, 0 );
- }
-
- if ( flags & 0x40 )
- {- q = dumbfile_getc( f );
- r = dumbfile_getc( f );
- if ( q )
- {- entry->mask |= IT_ENTRY_INSTRUMENT;
- entry->instrument = q;
- }
- if ( r )
- {- entry->mask |= IT_ENTRY_NOTE;
- entry->note = r - 1;
- }
- }
-
- if ( flags & 0x20 )
- {- q = dumbfile_getc( f );
- entry->mask |= IT_ENTRY_VOLPAN;
- if ( ver == 0 ) entry->volpan = q;
- else entry->volpan = q * 64 / 127;
- }
-
- if (entry->mask) entry++;
- }
- }
-
- while ( row < nrows )
- {- IT_SET_END_ROW( entry );
- ++ entry;
- ++ row;
- }
-
- pattern->n_entries = entry - pattern->entry;
- if ( ! pattern->n_entries ) return -1;
-
- return 0;
-}
-
-static DUMB_IT_SIGDATA *it_riff_amff_load_sigdata( DUMBFILE * f, struct riff * stream )
-{- DUMB_IT_SIGDATA *sigdata;
-
- int n, o, p, found;
-
- if ( ! stream ) goto error;
-
- if ( stream->type != DUMB_ID( 'A', 'M', 'F', 'F' ) ) goto error;
-
- sigdata = malloc( sizeof( *sigdata ) );
- if ( ! sigdata ) goto error;
-
- sigdata->n_patterns = 0;
- sigdata->n_samples = 0;
- sigdata->name[0] = 0;
-
- found = 0;
-
- for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
- {- struct riff_chunk * c = stream->chunks + n;
- switch( c->type )
- {- case DUMB_ID( 'M', 'A', 'I', 'N' ):
- /* initialization data */
- if ( ( found & 1 ) || ( c->size < 0x48 ) ) goto error_sd;
- found |= 1;
- break;
-
- case DUMB_ID( 'O', 'R', 'D', 'R' ):
- if ( ( found & 2 ) || ( c->size < 1 ) ) goto error_sd;
- found |= 2;
- break;
-
- case DUMB_ID( 'P', 'A', 'T', 'T' ):
- if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_sd;
- o = dumbfile_getc( f );
- if ( o >= sigdata->n_patterns ) sigdata->n_patterns = o + 1;
- o = dumbfile_igetl( f );
- if ( (unsigned)o + 5 > c->size ) goto error_sd;
- break;
-
- case DUMB_ID( 'I', 'N', 'S', 'T' ):
- {- if ( c->size < 0xE1 ) goto error_sd;
- if ( dumbfile_seek( f, c->offset + 1, DFS_SEEK_SET ) ) goto error_sd;
- o = dumbfile_getc( f );
- if ( o >= sigdata->n_samples ) sigdata->n_samples = o + 1;
- if ( c->size >= 0x121 )
- {- if ( dumbfile_seek( f, c->offset + 0xE1, DFS_SEEK_SET ) ) goto error_sd;
- if ( dumbfile_mgetl( f ) == DUMB_ID('S','A','M','P') )- {- unsigned size = dumbfile_igetl( f );
- if ( size + 0xE1 + 8 > c->size ) goto error_sd;
- }
- }
- }
- break;
- }
- }
-
- if ( found != 3 || !sigdata->n_samples || !sigdata->n_patterns ) goto error_sd;
-
- if ( sigdata->n_samples > 255 || sigdata->n_patterns > 255 ) goto error_sd;
-
- sigdata->song_message = NULL;
- sigdata->order = NULL;
- sigdata->instrument = NULL;
- sigdata->sample = NULL;
- sigdata->pattern = NULL;
- sigdata->midi = NULL;
- sigdata->checkpoint = NULL;
-
- sigdata->mixing_volume = 48;
- sigdata->pan_separation = 128;
-
- sigdata->n_instruments = 0;
- sigdata->n_orders = 0;
- sigdata->restart_position = 0;
-
- memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
-
- for (n = 0; n < DUMB_IT_N_CHANNELS; n += 4) {- int sep = 32 * dumb_it_default_panning_separation / 100;
- sigdata->channel_pan[n ] = 32 - sep;
- sigdata->channel_pan[n+1] = 32 + sep;
- sigdata->channel_pan[n+2] = 32 + sep;
- sigdata->channel_pan[n+3] = 32 - sep;
- }
-
- for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
- {- struct riff_chunk * c = stream->chunks + n;
- switch ( c->type )
- {- case DUMB_ID( 'M', 'A', 'I', 'N' ):
- if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
- dumbfile_getnc( (char *) sigdata->name, 64, f );
- sigdata->name[ 64 ] = 0;
- sigdata->flags = IT_STEREO | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_WAS_AN_S3M;
- o = dumbfile_getc( f );
- if ( ! ( o & 1 ) ) sigdata->flags |= IT_LINEAR_SLIDES;
- if ( ( o & ~3 ) || ! ( o & 2 ) ) goto error_usd; // unknown flags
- sigdata->n_pchannels = dumbfile_getc( f );
- sigdata->speed = dumbfile_getc( f );
- sigdata->tempo = dumbfile_getc( f );
-
- dumbfile_skip( f, 4 );
-
- sigdata->global_volume = dumbfile_getc( f );
-
- if ( c->size < 0x48 + (unsigned)sigdata->n_pchannels ) goto error_usd;
-
- for ( o = 0; o < sigdata->n_pchannels; ++o )
- {- p = dumbfile_getc( f );
- sigdata->channel_pan[ o ] = p;
- if ( p >= 128 )
- {- sigdata->channel_volume[ o ] = 0;
- }
- }
- break;
- }
- }
-
- sigdata->pattern = malloc( sigdata->n_patterns * sizeof( *sigdata->pattern ) );
- if ( ! sigdata->pattern ) goto error_usd;
- for ( n = 0; n < sigdata->n_patterns; ++n )
- sigdata->pattern[ n ].entry = NULL;
-
- sigdata->sample = malloc( sigdata->n_samples * sizeof( *sigdata->sample ) );
- if ( ! sigdata->sample ) goto error_usd;
- for ( n = 0; n < sigdata->n_samples; ++n )
- {- IT_SAMPLE * sample = sigdata->sample + n;
- sample->data = NULL;
- sample->flags = 0;
- sample->name[ 0 ] = 0;
- }
-
- for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
- {- struct riff_chunk * c = stream->chunks + n;
- switch ( c->type )
- {- case DUMB_ID( 'O', 'R', 'D', 'R' ):
- if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
- sigdata->n_orders = dumbfile_getc( f ) + 1;
- if ( (unsigned)sigdata->n_orders + 1 > c->size ) goto error_usd;
- sigdata->order = malloc( sigdata->n_orders );
- if ( ! sigdata->order ) goto error_usd;
- dumbfile_getnc( (char *) sigdata->order, sigdata->n_orders, f );
- break;
-
- case DUMB_ID( 'P', 'A', 'T', 'T' ):
- if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
- o = dumbfile_getc( f );
- p = dumbfile_igetl( f );
- if ( it_riff_am_process_pattern( sigdata->pattern + o, f, p, 0 ) ) goto error_usd;
- break;
-
- case DUMB_ID( 'I', 'N', 'S', 'T' ):
- {- IT_SAMPLE * sample;
- if ( dumbfile_seek( f, c->offset + 1, DFS_SEEK_SET ) ) goto error_usd;
- sample = sigdata->sample + dumbfile_getc( f );
- if ( c->size >= 0x121 )
- {- if ( dumbfile_seek( f, c->offset + 0xE1, DFS_SEEK_SET ) ) goto error_usd;
- if ( dumbfile_mgetl( f ) == DUMB_ID('S','A','M','P') )- {- unsigned size = dumbfile_igetl( f );
- if ( it_riff_am_process_sample( sample, f, size, 0 ) ) goto error_usd;
- break;
- }
- }
- dumbfile_seek( f, c->offset + 2, DFS_SEEK_SET );
- dumbfile_getnc( (char *) sample->name, 28, f );
- sample->name[ 28 ] = 0;
- }
- break;
- }
- }
-
- _dumb_it_fix_invalid_orders( sigdata );
-
- return sigdata;
-
-error_usd:
- _dumb_it_unload_sigdata( sigdata );
- goto error;
-error_sd:
- free( sigdata );
-error:
- return NULL;
-}
-
-static DUMB_IT_SIGDATA *it_riff_am_load_sigdata( DUMBFILE * f, struct riff * stream )
-{- DUMB_IT_SIGDATA *sigdata;
-
- int n, o, p, found;
-
- if ( ! f || ! stream ) goto error;
-
- if ( stream->type != DUMB_ID( 'A', 'M', ' ', ' ' ) ) goto error;
-
- sigdata = malloc(sizeof(*sigdata));
- if ( ! sigdata ) goto error;
-
- sigdata->n_patterns = 0;
- sigdata->n_samples = 0;
- sigdata->name[0] = 0;
-
- found = 0;
-
- for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
- {- struct riff_chunk * c = stream->chunks + n;
- switch( c->type )
- {- case DUMB_ID( 'I' ,'N' ,'I' ,'T' ):
- /* initialization data */
- if ( ( found & 1 ) || ( c->size < 0x48 ) ) goto error_sd;
- found |= 1;
- break;
-
- case DUMB_ID( 'O', 'R', 'D', 'R' ):
- if ( ( found & 2 ) || ( c->size < 1 ) ) goto error_sd;
- found |= 2;
- break;
-
- case DUMB_ID( 'P', 'A', 'T', 'T' ):
- if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_sd;
- o = dumbfile_getc( f );
- if ( o >= sigdata->n_patterns ) sigdata->n_patterns = o + 1;
- o = dumbfile_igetl( f );
- if ( (unsigned)o + 5 > c->size ) goto error_sd;
- break;
-
- case DUMB_ID( 'R', 'I', 'F', 'F' ):
- {- struct riff * str = c->nested;
- switch ( str->type )
- {- case DUMB_ID( 'A', 'I', ' ', ' ' ):
- for ( o = 0; (unsigned)o < str->chunk_count; ++o )
- {- struct riff_chunk * chk = str->chunks + o;
- switch( chk->type )
- {- case DUMB_ID( 'I', 'N', 'S', 'T' ):
- {- struct riff * temp;
- unsigned size;
- unsigned sample_found;
- if ( dumbfile_seek( f, chk->offset, DFS_SEEK_SET ) ) goto error_sd;
- size = dumbfile_igetl( f );
- if ( size < 0x142 ) goto error_sd;
- sample_found = 0;
- dumbfile_skip( f, 1 );
- p = dumbfile_getc( f );
- if ( p >= sigdata->n_samples ) sigdata->n_samples = p + 1;
- temp = riff_parse( f, chk->offset + 4 + size, chk->size - size - 4, 1 );
- if ( temp )
- {- if ( temp->type == DUMB_ID( 'A', 'S', ' ', ' ' ) )
- {- for ( p = 0; (unsigned)p < temp->chunk_count; ++p )
- {- if ( temp->chunks[ p ].type == DUMB_ID( 'S', 'A', 'M', 'P' ) )
- {- if ( sample_found )
- {- riff_free( temp );
- goto error_sd;
- }
- sample_found = 1;
- }
- }
- }
- riff_free( temp );
- }
- }
- }
- }
- }
- }
- break;
- }
- }
-
- if ( found != 3 || !sigdata->n_samples || !sigdata->n_patterns ) goto error_sd;
-
- if ( sigdata->n_samples > 255 || sigdata->n_patterns > 255 ) goto error_sd;
-
- sigdata->song_message = NULL;
- sigdata->order = NULL;
- sigdata->instrument = NULL;
- sigdata->sample = NULL;
- sigdata->pattern = NULL;
- sigdata->midi = NULL;
- sigdata->checkpoint = NULL;
-
- sigdata->mixing_volume = 48;
- sigdata->pan_separation = 128;
-
- sigdata->n_instruments = 0;
- sigdata->n_orders = 0;
- sigdata->restart_position = 0;
-
- memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
-
- for (n = 0; n < DUMB_IT_N_CHANNELS; n += 4) {- int sep = 32 * dumb_it_default_panning_separation / 100;
- sigdata->channel_pan[n ] = 32 - sep;
- sigdata->channel_pan[n+1] = 32 + sep;
- sigdata->channel_pan[n+2] = 32 + sep;
- sigdata->channel_pan[n+3] = 32 - sep;
- }
-
- for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
- {- struct riff_chunk * c = stream->chunks + n;
- switch ( c->type )
- {- case DUMB_ID( 'I', 'N', 'I', 'T' ):
- if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
- dumbfile_getnc( (char *) sigdata->name, 64, f );
- sigdata->name[ 64 ] = 0;
- sigdata->flags = IT_STEREO | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_WAS_AN_S3M;
- o = dumbfile_getc( f );
- if ( ! ( o & 1 ) ) sigdata->flags |= IT_LINEAR_SLIDES;
- if ( ( o & ~3 ) || ! ( o & 2 ) ) goto error_usd; // unknown flags
- sigdata->n_pchannels = dumbfile_getc( f );
- sigdata->speed = dumbfile_getc( f );
- sigdata->tempo = dumbfile_getc( f );
-
- dumbfile_skip( f, 4 );
-
- sigdata->global_volume = dumbfile_getc( f );
-
- if ( c->size < 0x48 + (unsigned)sigdata->n_pchannels ) goto error_usd;
-
- for ( o = 0; o < sigdata->n_pchannels; ++o )
- {- p = dumbfile_getc( f );
- if ( p <= 128 )
- {- sigdata->channel_pan[ o ] = p / 2;
- }
- else
- {- sigdata->channel_volume[ o ] = 0;
- }
- }
- break;
- }
- }
-
- sigdata->pattern = malloc( sigdata->n_patterns * sizeof( *sigdata->pattern ) );
- if ( ! sigdata->pattern ) goto error_usd;
- for ( n = 0; n < sigdata->n_patterns; ++n )
- sigdata->pattern[ n ].entry = NULL;
-
- sigdata->sample = malloc( sigdata->n_samples * sizeof( *sigdata->sample ) );
- if ( ! sigdata->sample ) goto error_usd;
- for ( n = 0; n < sigdata->n_samples; ++n )
- {- IT_SAMPLE * sample = sigdata->sample + n;
- sample->data = NULL;
- sample->flags = 0;
- sample->name[ 0 ] = 0;
- }
-
- for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
- {- struct riff_chunk * c = stream->chunks + n;
- switch ( c->type )
- {- case DUMB_ID( 'O', 'R', 'D', 'R' ):
- if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
- sigdata->n_orders = dumbfile_getc( f ) + 1;
- if ( (unsigned)sigdata->n_orders + 1 > c->size ) goto error_usd;
- sigdata->order = malloc( sigdata->n_orders );
- if ( ! sigdata->order ) goto error_usd;
- dumbfile_getnc( (char *) sigdata->order, sigdata->n_orders, f );
- break;
-
- case DUMB_ID( 'P', 'A', 'T', 'T' ):
- if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
- o = dumbfile_getc( f );
- p = dumbfile_igetl( f );
- if ( it_riff_am_process_pattern( sigdata->pattern + o, f, p, 1 ) ) goto error_usd;
- break;
-
- case DUMB_ID( 'R', 'I', 'F', 'F' ):
- {- struct riff * str = c->nested;
- switch ( str->type )
- {- case DUMB_ID('A', 'I', ' ', ' '):- for ( o = 0; (unsigned)o < str->chunk_count; ++o )
- {- struct riff_chunk * chk = str->chunks + o;
- switch( chk->type )
- {- case DUMB_ID( 'I', 'N', 'S', 'T' ):
- {- struct riff * temp;
- unsigned size;
- unsigned sample_found;
- IT_SAMPLE * sample;
- if ( dumbfile_seek( f, chk->offset, DFS_SEEK_SET ) ) goto error_usd;
- size = dumbfile_igetl( f );
- dumbfile_skip( f, 1 );
- p = dumbfile_getc( f );
- temp = riff_parse( f, chk->offset + 4 + size, chk->size - size - 4, 1 );
- sample_found = 0;
- sample = sigdata->sample + p;
- if ( temp )
- {- if ( temp->type == DUMB_ID( 'A', 'S', ' ', ' ' ) )
- {- for ( p = 0; (unsigned)p < temp->chunk_count; ++p )
- {- struct riff_chunk * c = temp->chunks + p;
- if ( c->type == DUMB_ID( 'S', 'A', 'M', 'P' ) )
- {- if ( sample_found )
- {- riff_free( temp );
- goto error_usd;
- }
- if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) )
- {- riff_free( temp );
- goto error_usd;
- }
- if ( it_riff_am_process_sample( sample, f, c->size, 1 ) )
- {- riff_free( temp );
- goto error_usd;
- }
- sample_found = 1;
- }
- }
- }
- riff_free( temp );
- }
- if ( ! sample_found )
- {- dumbfile_seek( f, chk->offset + 6, DFS_SEEK_SET );
- dumbfile_getnc( (char *) sample->name, 32, f );
- sample->name[ 32 ] = 0;
- }
- }
- }
- }
- }
- }
- break;
- }
- }
-
- _dumb_it_fix_invalid_orders( sigdata );
-
- return sigdata;
-
-error_usd:
- _dumb_it_unload_sigdata( sigdata );
- goto error;
-error_sd:
- free( sigdata );
-error:
- return NULL;
-}
-
-DUH *dumb_read_riff_amff( DUMBFILE * f, struct riff * stream )
-{- sigdata_t *sigdata;
- long length;
-
- DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
-
- sigdata = it_riff_amff_load_sigdata( f, stream );
-
- if (!sigdata)
- return NULL;
-
- length = 0;/*_dumb_it_build_checkpoints(sigdata, 0);*/
-
- {- const char *tag[2][2];
- tag[0][0] = "TITLE";
- tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
- tag[1][0] = "FORMAT";
- tag[1][1] = "RIFF AMFF";
- return make_duh( length, 2, ( const char * const (*) [ 2 ] ) tag, 1, & descptr, & sigdata );
- }
-}
-
-DUH *dumb_read_riff_am( DUMBFILE * f, struct riff * stream )
-{- sigdata_t *sigdata;
-
- DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
-
- sigdata = it_riff_am_load_sigdata( f, stream );
-
- if (!sigdata)
- return NULL;
-
- {- const char *tag[2][2];
- tag[0][0] = "TITLE";
- tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
- tag[1][0] = "FORMAT";
- tag[1][1] = "RIFF AM";
- return make_duh( -1, 2, ( const char * const (*) [ 2 ] ) tag, 1, & descptr, & sigdata );
- }
-}
--- a/dumb/src/it/readamf.c
+++ /dev/null
@@ -1,559 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readamf.c - Code to read a DSMI AMF module from / / \ \
- * an open file. | < / \_
- * | \/ /\ /
- * By Chris Moeller. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-static void it_amf_process_track( IT_ENTRY *entry_table, unsigned char *track, int rows, int channels )
-{- int last_instrument = 0;
- int tracksize = track[ 0 ] + ( track[ 1 ] << 8 ) + ( track[ 2 ] << 16 );
- track += 3;
- while ( tracksize-- ) {- unsigned int row = track[ 0 ];
- unsigned int command = track[ 1 ];
- unsigned int argument = track[ 2 ];
- IT_ENTRY * entry = entry_table + row * channels;
- if ( row >= ( unsigned int ) rows ) break;
- if ( command < 0x7F ) {- entry->mask |= IT_ENTRY_NOTE | IT_ENTRY_INSTRUMENT | IT_ENTRY_VOLPAN;
- entry->note = command;
- if ( ! entry->instrument ) entry->instrument = last_instrument;
- entry->volpan = argument;
- }
- else if ( command == 0x7F ) {- signed char row_delta = ( signed char ) argument;
- int row_source = ( int ) row + ( int ) row_delta;
- if ( row_source >= 0 && row_source < ( int ) rows ) {- *entry = entry_table[ row_source * channels ];
- }
- }
- else if ( command == 0x80 ) {- entry->mask |= IT_ENTRY_INSTRUMENT;
- last_instrument = argument + 1;
- entry->instrument = last_instrument;
- }
- else if ( command == 0x83 ) {- entry->mask |= IT_ENTRY_VOLPAN;
- entry->volpan = argument;
- }
- else {- unsigned int effect = command & 0x7F;
- unsigned int effectvalue = argument;
- switch (effect) {- case 0x01: effect = IT_SET_SPEED; break;
-
- case 0x02: effect = IT_VOLUME_SLIDE;
- case 0x0A: if ( effect == 0x0A ) effect = IT_VOLSLIDE_TONEPORTA;
- case 0x0B: if ( effect == 0x0B ) effect = IT_VOLSLIDE_VIBRATO;
- if ( effectvalue & 0x80 ) effectvalue = ( -( signed char ) effectvalue ) & 0x0F;
- else effectvalue = ( effectvalue & 0x0F ) << 4;
- break;
-
- case 0x04:
- if ( effectvalue & 0x80 ) {- effect = IT_PORTAMENTO_UP;
- effectvalue = ( -( signed char ) effectvalue ) & 0x7F;
- }
- else {- effect = IT_PORTAMENTO_DOWN;
- }
- break;
-
- case 0x06: effect = IT_TONE_PORTAMENTO; break;
-
- case 0x07: effect = IT_TREMOR; break;
-
- case 0x08: effect = IT_ARPEGGIO; break;
-
- case 0x09: effect = IT_VIBRATO; break;
-
- case 0x0C: effect = IT_BREAK_TO_ROW; break;
-
- case 0x0D: effect = IT_JUMP_TO_ORDER; break;
-
- case 0x0F: effect = IT_RETRIGGER_NOTE; break;
-
- case 0x10: effect = IT_SET_SAMPLE_OFFSET; break;
-
- case 0x11:
- if ( effectvalue ) {- effect = IT_VOLUME_SLIDE;
- if ( effectvalue & 0x80 )
- effectvalue = 0xF0 | ( ( -( signed char ) effectvalue ) & 0x0F );
- else
- effectvalue = 0x0F | ( ( effectvalue & 0x0F ) << 4 );
- }
- else
- effect = 0;
- break;
-
- case 0x12:
- case 0x16:
- if ( effectvalue ) {- int mask = ( effect == 0x16 ) ? 0xE0 : 0xF0;
- effect = ( effectvalue & 0x80 ) ? IT_PORTAMENTO_UP : IT_PORTAMENTO_DOWN;
- if ( effectvalue & 0x80 )
- effectvalue = mask | ( ( -( signed char ) effectvalue ) & 0x0F );
- else
- effectvalue = mask | ( effectvalue & 0x0F );
- }
- else
- effect = 0;
- break;
-
- case 0x13:
- effect = IT_S;
- effectvalue = EFFECT_VALUE( IT_S_NOTE_DELAY, effectvalue & 0x0F );
- break;
-
- case 0x14:
- effect = IT_S;
- effectvalue = EFFECT_VALUE( IT_S_DELAYED_NOTE_CUT, effectvalue & 0x0F );
- break;
-
- case 0x15: effect = IT_SET_SONG_TEMPO; break;
-
- case 0x17:
- effectvalue = ( effectvalue + 64 ) & 0x7F;
- if ( entry->mask & IT_ENTRY_EFFECT ) {- if ( !( entry->mask & IT_ENTRY_VOLPAN ) ) {- entry->mask |= IT_ENTRY_VOLPAN;
- entry->volpan = ( effectvalue / 2 ) + 128;
- }
- effect = 0;
- }
- else {- effect = IT_SET_PANNING;
- }
- break;
-
- default: effect = effectvalue = 0;
- }
- if ( effect ) {- entry->mask |= IT_ENTRY_EFFECT;
- entry->effect = effect;
- entry->effectvalue = effectvalue;
- }
- }
- track += 3;
- }
-}
-
-static int it_amf_process_pattern( IT_PATTERN *pattern, IT_ENTRY *entry_table, int rows, int channels )
-{- int i, j;
- int n_entries = rows;
- IT_ENTRY * entry;
-
- pattern->n_rows = rows;
-
- for ( i = 0, j = channels * rows; i < j; i++ ) {- if ( entry_table[ i ].mask ) {- n_entries++;
- }
- }
-
- pattern->n_entries = n_entries;
-
- pattern->entry = entry = malloc( n_entries * sizeof( IT_ENTRY ) );
- if ( !entry ) {- return -1;
- }
-
- for ( i = 0; i < rows; i++ ) {- for ( j = 0; j < channels; j++ ) {- if ( entry_table[ i * channels + j ].mask ) {- *entry = entry_table[ i * channels + j ];
- entry->channel = j;
- entry++;
- }
- }
- IT_SET_END_ROW( entry );
- entry++;
- }
-
- return 0;
-}
-
-static int it_amf_read_sample_header( IT_SAMPLE *sample, DUMBFILE *f, int * offset, int ver )
-{- int exists;
-
- exists = dumbfile_getc( f );
-
- dumbfile_getnc( (char *) sample->name, 32, f );
- sample->name[32] = 0;
-
- dumbfile_getnc( (char *) sample->filename, 13, f );
- sample->filename[13] = 0;
-
- *offset = (int)dumbfile_igetl( f );
- sample->length = dumbfile_igetl( f );
- sample->C5_speed = dumbfile_igetw( f );
- sample->default_volume = dumbfile_getc( f );
- sample->global_volume = 64;
- if ( sample->default_volume > 64 ) sample->default_volume = 64;
-
- if ( ver >= 11 ) {- sample->loop_start = dumbfile_igetl( f );
- sample->loop_end = dumbfile_igetl( f );
- } else {- sample->loop_start = dumbfile_igetw( f );
- sample->loop_end = sample->length;
- }
-
- if ( sample->length <= 0 ) {- sample->flags = 0;
- return 0;
- }
-
- sample->flags = exists == 1 ? IT_SAMPLE_EXISTS : 0;
-
- sample->default_pan = 0;
- sample->finetune = 0;
-
- if ( sample->loop_end > sample->loop_start + 2 && sample->loop_end <= sample->length )
- sample->flags |= IT_SAMPLE_LOOP;
-
- sample->vibrato_speed = 0;
- sample->vibrato_depth = 0;
- sample->vibrato_rate = 0;
- sample->vibrato_waveform = 0; // do we have to set _all_ these?
- sample->max_resampling_quality = -1;
-
- return dumbfile_error(f);
-}
-
-
-
-static int it_amf_read_sample_data( IT_SAMPLE *sample, DUMBFILE *f )
-{- int i, read_length = 0;
-
- sample->data = malloc( sample->length );
-
- if ( !sample->data )
- return -1;
-
- if ( sample->length )
- read_length = (int)dumbfile_getnc( sample->data, sample->length, f );
-
- for ( i = 0; i < read_length; i++ ) {- ( ( signed char * ) sample->data )[ i ] ^= 0x80;
- }
-
- for ( i = read_length; i < sample->length; i++ ) {- ( ( signed char * ) sample->data )[ i ] = 0;
- }
-
- return 0; /* Sometimes the last sample is truncated :( */
-}
-
-static DUMB_IT_SIGDATA *it_amf_load_sigdata(DUMBFILE *f, int * version)
-{- DUMB_IT_SIGDATA *sigdata;
- int i, j, ver, ntracks, realntracks, nchannels;
-
- int maxsampleseekpos = 0;
- int sampleseekpos[256];
-
- unsigned short *orderstotracks;
- unsigned short *trackmap;
- unsigned int tracksize[256];
-
- unsigned char **track;
-
- static const char sig[] = "AMF";
-
- char signature [3];
-
- if ( dumbfile_getnc( signature, 3, f ) != 3 ||
- memcmp( signature, sig, 3 ) ) {- return NULL;
- }
-
- *version = ver = dumbfile_getc( f );
- if ( ver < 10 || ver > 14) {- return NULL;
- }
-
- sigdata = malloc(sizeof(*sigdata));
- if (!sigdata) {- return NULL;
- }
-
- dumbfile_getnc( (char *) sigdata->name, 32, f );
- sigdata->name[ 32 ] = 0;
- sigdata->n_samples = dumbfile_getc( f );
- sigdata->n_orders = dumbfile_getc( f );
- ntracks = dumbfile_igetw( f );
- nchannels = dumbfile_getc( f );
-
- if ( dumbfile_error( f ) ||
- sigdata->n_samples < 1 || sigdata->n_samples > 255 ||
- sigdata->n_orders < 1 || sigdata->n_orders > 255 ||
- ! ntracks ||
- nchannels < 1 || nchannels > 32 ) {- free( sigdata );
- return NULL;
- }
-
- sigdata->n_pchannels = nchannels;
-
- memset( sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS );
-
- if ( ver >= 11 ) {- int nchannels = ( ver >= 13 ) ? 32 : 16;
- for ( i = 0; i < nchannels; i++ ) {- signed char panpos = dumbfile_getc( f );
- int pan = ( panpos + 64 ) / 2;
- if ( pan < 0 ) pan = 0;
- else if ( pan > 64 ) pan = IT_SURROUND;
- sigdata->channel_pan[ i ] = pan;
- }
- }
- else {- int sep = 32 * dumb_it_default_panning_separation / 100;
- for ( i = 0; i < 16; i++ ) {- sigdata->channel_pan[ i ] = ( dumbfile_getc( f ) & 1 ) ? 32 - sep : 32 + sep;
- }
- }
-
- sigdata->tempo = 125;
- sigdata->speed = 6;
- if ( ver >= 13 ) {- i = dumbfile_getc( f );
- if ( i >= 32 ) sigdata->tempo = i;
- i = dumbfile_getc( f );
- if ( i <= 32 ) sigdata->speed = i;
- }
-
- sigdata->order = malloc( sigdata->n_orders );
- if ( !sigdata->order ) {- free( sigdata );
- return NULL;
- }
-
- orderstotracks = malloc( sigdata->n_orders * nchannels * sizeof( unsigned short ) );
- if ( !orderstotracks ) {- free( sigdata->order );
- free( sigdata );
- return NULL;
- }
-
- for ( i = 0; i < sigdata->n_orders; i++ ) {- sigdata->order[ i ] = i;
- tracksize[ i ] = 64;
- if ( ver >= 14 ) {- tracksize[ i ] = dumbfile_igetw( f );
- }
- for ( j = 0; j < nchannels; j++ ) {- orderstotracks[ i * nchannels + j ] = dumbfile_igetw( f );
- }
- }
-
- if ( dumbfile_error( f ) ) {- free( orderstotracks );
- free( sigdata->order );
- free( sigdata );
- return NULL;
- }
-
- sigdata->sample = malloc( sigdata->n_samples * sizeof( *sigdata->sample ) );
- if ( !sigdata->sample ) {- free( orderstotracks );
- free( sigdata->order );
- free( sigdata );
- return NULL;
- }
-
- sigdata->restart_position = 0;
-
- sigdata->song_message = NULL;
- sigdata->instrument = NULL;
- sigdata->pattern = NULL;
- sigdata->midi = NULL;
- sigdata->checkpoint = NULL;
-
- sigdata->n_instruments = 0;
-
- for ( i = 0; i < sigdata->n_samples; ++i )
- sigdata->sample[i].data = NULL;
-
- for ( i = 0; i < sigdata->n_samples; ++i ) {- int offset;
- if ( it_amf_read_sample_header( &sigdata->sample[i], f, &offset, ver ) ) {- goto error_ott;
- }
- sampleseekpos[ i ] = offset;
- if ( offset > maxsampleseekpos ) maxsampleseekpos = offset;
- }
-
- sigdata->n_patterns = sigdata->n_orders;
-
- sigdata->pattern = malloc( sigdata->n_patterns * sizeof( *sigdata->pattern ) );
- if ( !sigdata->pattern ) {- goto error_ott;
- }
- for (i = 0; i < sigdata->n_patterns; ++i)
- sigdata->pattern[i].entry = NULL;
-
- trackmap = malloc( ntracks * sizeof( unsigned short ) );
- if ( !trackmap ) {- goto error_ott;
- }
-
- if ( dumbfile_getnc( ( char * ) trackmap, ntracks * sizeof( unsigned short ), f ) != (long)(ntracks * sizeof( unsigned short )) ) {- goto error_tm;
- }
-
- realntracks = 0;
-
- for ( i = 0; i < ntracks; i++ ) {- if ( trackmap[ i ] > realntracks ) realntracks = trackmap[ i ];
- }
-
- track = calloc( realntracks, sizeof( unsigned char * ) );
- if ( !track ) {- goto error_tm;
- }
-
- for ( i = 0; i < realntracks; i++ ) {- int tracksize = dumbfile_igetw( f );
- tracksize += dumbfile_getc( f ) << 16;
- track[ i ] = malloc( tracksize * 3 + 3 );
- if ( !track[ i ] ) {- goto error_all;
- }
- track[ i ][ 0 ] = tracksize & 255;
- track[ i ][ 1 ] = ( tracksize >> 8 ) & 255;
- track[ i ][ 2 ] = ( tracksize >> 16 ) & 255;
- if ( dumbfile_getnc( (char *) track[ i ] + 3, tracksize * 3, f ) != tracksize * 3 ) {- goto error_all;
- }
- }
-
- for ( i = 1; i <= maxsampleseekpos; i++ ) {- for ( j = 0; j < sigdata->n_samples; j++ ) {- if ( sampleseekpos[ j ] == i ) {- if ( it_amf_read_sample_data( &sigdata->sample[ j ], f ) ) {- goto error_all;
- }
- break;
- }
- }
- }
-
- /* Process tracks into patterns */
- for ( i = 0; i < sigdata->n_patterns; i++ ) {- IT_ENTRY * entry_table = calloc( tracksize[ i ] * nchannels, sizeof( IT_ENTRY ) );
- if ( !entry_table ) {- goto error_all;
- }
- for ( j = 0; j < nchannels; j++ ) {- int ntrack = orderstotracks[ i * nchannels + j ];
- if ( ntrack && ntrack <= ntracks ) {- int realtrack = trackmap[ ntrack - 1 ];
- if ( realtrack ) {- realtrack--;
- if ( realtrack < realntracks && track[ realtrack ] ) {- it_amf_process_track( entry_table + j, track[ realtrack ], tracksize[ i ], nchannels );
- }
- }
- }
- }
- if ( it_amf_process_pattern( &sigdata->pattern[ i ], entry_table, tracksize[ i ], nchannels ) ) {- free( entry_table );
- goto error_all;
- }
- free( entry_table );
- }
-
- /* Now let's initialise the remaining variables, and we're done! */
- sigdata->flags = IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_STEREO | IT_WAS_AN_S3M;
-
- sigdata->global_volume = 128;
- sigdata->mixing_volume = 48;
- sigdata->pan_separation = 128;
-
- _dumb_it_fix_invalid_orders(sigdata);
-
- for ( i = 0; i < realntracks; i++ ) {- if ( track[ i ] ) {- free( track[ i ] );
- }
- }
- free( track );
- free( trackmap );
- free( orderstotracks );
-
- return sigdata;
-
-error_all:
- for ( i = 0; i < realntracks; i++ ) {- if ( track[ i ] ) {- free( track[ i ] );
- }
- }
- free( track );
-error_tm:
- free( trackmap );
-error_ott:
- free( orderstotracks );
- _dumb_it_unload_sigdata( sigdata );
- return NULL;
-}
-
-
-
-DUH *dumb_read_amf_quick(DUMBFILE *f)
-{- sigdata_t *sigdata;
-
- DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
-
- int version;
-
- sigdata = it_amf_load_sigdata(f, &version);
-
- if (!sigdata)
- return NULL;
-
- {- const char *tag[2][2];
- char ver_string[14];
- tag[0][0] = "TITLE";
- tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
- tag[1][0] = "FORMAT";
- memcpy( ver_string, "DSMI AMF v", 10 );
- ver_string[10] = '0' + version / 10;
- ver_string[11] = '.';
- ver_string[12] = '0' + version % 10;
- ver_string[13] = 0;
- tag[1][1] = ver_string;
- return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
- }
-}
--- a/dumb/src/it/readamf2.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readamf2.c - Function to read a DSMI AMF module / / \ \
- * from an open file and do an initial | < / \_
- * run-through. | \/ /\ /
- * \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-
-
-
-DUH *dumb_read_amf(DUMBFILE *f)
-{- DUH *duh = dumb_read_amf_quick(f);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/readany.c
+++ /dev/null
@@ -1,132 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readany.c - Code to detect and read any of the / / \ \
- * module formats supported by DUMB. | < / \_
- * | \/ /\ /
- * By Chris Moeller. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "dumb.h"
-
-#ifdef _MSC_VER
- #define strnicmp _strnicmp
-#else
- #if defined(unix) || defined(__unix__) || defined(__unix)
- #include <strings.h>
- #endif
- #define strnicmp strncasecmp
-#endif
-
-enum { maximum_signature_size = 0x30 };-
-DUH *dumb_read_any_quick(DUMBFILE *f, int restrict_, int subsong)
-{- unsigned char signature[ maximum_signature_size ];
- unsigned long signature_size;
- DUH * duh = NULL;
-
- /* signature_size = dumbfile_get_size(f); */
-
- signature_size = dumbfile_getnc( (char *)signature, maximum_signature_size, f );
- dumbfile_seek( f, 0, DFS_SEEK_SET );
-
- if (signature_size >= 4 &&
- signature[0] == 'I' && signature[1] == 'M' &&
- signature[2] == 'P' && signature[3] == 'M')
- {- duh = dumb_read_it_quick( f );
- }
- else if (signature_size >= 17 && !memcmp(signature, "Extended Module: ", 17))
- {- duh = dumb_read_xm_quick( f );
- }
- else if (signature_size >= 0x30 &&
- signature[0x2C] == 'S' && signature[0x2D] == 'C' &&
- signature[0x2E] == 'R' && signature[0x2F] == 'M')
- {- duh = dumb_read_s3m_quick( f );
- }
- else if (signature_size >= 30 &&
- /*signature[28] == 0x1A &&*/ signature[29] == 2 &&
- ( ! strnicmp( ( const char * ) signature + 20, "!Scream!", 8 ) ||
- ! strnicmp( ( const char * ) signature + 20, "BMOD2STM", 8 ) ||
- ! strnicmp( ( const char * ) signature + 20, "WUZAMOD!", 8 ) ) )
- {- duh = dumb_read_stm_quick( f );
- }
- else if (signature_size >= 2 &&
- ((signature[0] == 0x69 && signature[1] == 0x66) ||
- (signature[0] == 0x4A && signature[1] == 0x4E)))
- {- duh = dumb_read_669_quick( f );
- }
- else if (signature_size >= 0x30 &&
- signature[0x2C] == 'P' && signature[0x2D] == 'T' &&
- signature[0x2E] == 'M' && signature[0x2F] == 'F')
- {- duh = dumb_read_ptm_quick( f );
- }
- else if (signature_size >= 4 &&
- signature[0] == 'P' && signature[1] == 'S' &&
- signature[2] == 'M' && signature[3] == ' ')
- {- duh = dumb_read_psm_quick( f, subsong );
- }
- else if (signature_size >= 4 &&
- signature[0] == 'P' && signature[1] == 'S' &&
- signature[2] == 'M' && signature[3] == 254)
- {- duh = dumb_read_old_psm_quick( f );
- }
- else if (signature_size >= 3 &&
- signature[0] == 'M' && signature[1] == 'T' &&
- signature[2] == 'M')
- {- duh = dumb_read_mtm_quick( f );
- }
- else if ( signature_size >= 4 &&
- signature[0] == 'R' && signature[1] == 'I' &&
- signature[2] == 'F' && signature[3] == 'F')
- {- duh = dumb_read_riff_quick( f );
- }
- else if ( signature_size >= 24 &&
- !memcmp( signature, "ASYLUM Music Format", 19 ) &&
- !memcmp( signature + 19, " V1.0", 5 ) )
- {- duh = dumb_read_asy_quick( f );
- }
- else if ( signature_size >= 3 &&
- signature[0] == 'A' && signature[1] == 'M' &&
- signature[2] == 'F')
- {- duh = dumb_read_amf_quick( f );
- }
- else if ( signature_size >= 8 &&
- !memcmp( signature, "OKTASONG", 8 ) )
- {- duh = dumb_read_okt_quick( f );
- }
-
- if ( !duh )
- {- dumbfile_seek( f, 0, DFS_SEEK_SET );
- duh = dumb_read_mod_quick( f, restrict_ );
- }
-
- return duh;
-}
--- a/dumb/src/it/readany2.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readany2.c - Code to detect and read any of the / / \ \
- * module formats supported by DUMB | < / \_
- * from an open file and do an initial | \/ /\ /
- * run-through. \_ / > /
- * | \ / /
- * by Chris Moeller. | ' /
- * \__/
- */
-
-#include "dumb.h"
-
-
-
-DUH *dumb_read_any(DUMBFILE *f, int restrict_, int subsong)
-{- DUH *duh = dumb_read_any_quick(f, restrict_, subsong);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/readasy.c
+++ /dev/null
@@ -1,339 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readasy.c - Code to read an ASYLUM Music Format / / \ \
- * module from an open file. | < / \_
- * | \/ /\ /
- * By Chris Moeller. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-static int it_asy_read_pattern( IT_PATTERN *pattern, DUMBFILE *f, unsigned char *buffer )
-{- int pos;
- int channel;
- int row;
- IT_ENTRY *entry;
-
- pattern->n_rows = 64;
-
- if ( dumbfile_getnc( (char *) buffer, 64 * 8 * 4, f ) != 64 * 8 * 4 )
- return -1;
-
- /* compute number of entries */
- pattern->n_entries = 64; /* Account for the row end markers */
- pos = 0;
- for ( row = 0; row < 64; ++row ) {- for ( channel = 0; channel < 8; ++channel ) {- if ( buffer[ pos + 0 ] | buffer[ pos + 1 ] | buffer[ pos + 2 ] | buffer[ pos + 3 ] )
- ++pattern->n_entries;
- pos += 4;
- }
- }
-
- pattern->entry = malloc( pattern->n_entries * sizeof( *pattern->entry ) );
- if ( !pattern->entry )
- return -1;
-
- entry = pattern->entry;
- pos = 0;
- for ( row = 0; row < 64; ++row ) {- for ( channel = 0; channel < 8; ++channel ) {- if ( buffer[ pos + 0 ] | buffer[ pos + 1 ] | buffer[ pos + 2 ] | buffer[ pos + 3 ] ) {- entry->channel = channel;
- entry->mask = 0;
-
- if ( buffer[ pos + 0 ] && buffer[ pos + 0 ] < 96 ) {- entry->note = buffer[ pos + 0 ];
- entry->mask |= IT_ENTRY_NOTE;
- }
-
- if ( buffer[ pos + 1 ] && buffer[ pos + 1 ] <= 64 ) {- entry->instrument = buffer[ pos + 1 ];
- entry->mask |= IT_ENTRY_INSTRUMENT;
- }
-
- _dumb_it_xm_convert_effect( buffer[ pos + 2 ], buffer[ pos + 3 ], entry, 1 );
-
- // fixup
- switch ( entry->effect ) {- case IT_SET_PANNING:
- entry->effectvalue <<= 1;
- break;
- }
-
- if ( entry->mask ) ++entry;
- }
- pos += 4;
- }
- IT_SET_END_ROW( entry );
- ++entry;
- }
-
- pattern->n_entries = entry - pattern->entry;
-
- return 0;
-}
-
-
-
-static int it_asy_read_sample_header( IT_SAMPLE *sample, DUMBFILE *f )
-{- int finetune, key_offset;
-
-/**
- 21 22 Chars Sample 1 name. If the name is not a full
- 22 chars in length, it will be null
- terminated.
-
-If
-the sample name begins with a '#' character (ASCII $23 (35)) then this is
-assumed not to be an instrument name, and is probably a message.
-*/
- dumbfile_getnc( (char *) sample->name, 22, f );
- sample->name[22] = 0;
-
- sample->filename[0] = 0;
-
-/** Each finetune step changes the note 1/8th of a semitone. */
- finetune = ( signed char ) ( dumbfile_getc( f ) << 4 ) >> 4; /* signed nibble */
- sample->default_volume = dumbfile_getc( f ); // Should we be setting global_volume to this instead?
- sample->global_volume = 64;
- if ( sample->default_volume > 64 ) sample->default_volume = 64;
- key_offset = ( signed char ) dumbfile_getc( f ); /* base key offset */
- sample->length = dumbfile_igetl( f );
- sample->loop_start = dumbfile_igetl( f );
- sample->loop_end = sample->loop_start + dumbfile_igetl( f );
-
- if ( sample->length <= 0 ) {- sample->flags = 0;
- return 0;
- }
-
- sample->flags = IT_SAMPLE_EXISTS;
-
- sample->default_pan = 0;
- sample->C5_speed = (int)( AMIGA_CLOCK / 214.0 * pow( DUMB_SEMITONE_BASE, key_offset ) );//( long )( 16726.0 * pow( DUMB_PITCH_BASE, finetune * 32 ) );
- sample->finetune = finetune * 32;
- // the above line might be wrong
-
- if ( ( sample->loop_end - sample->loop_start > 2 ) && ( sample->loop_end <= sample->length ) )
- sample->flags |= IT_SAMPLE_LOOP;
-
- sample->vibrato_speed = 0;
- sample->vibrato_depth = 0;
- sample->vibrato_rate = 0;
- sample->vibrato_waveform = 0; // do we have to set _all_ these?
- sample->max_resampling_quality = -1;
-
- return dumbfile_error(f);
-}
-
-
-
-static int it_asy_read_sample_data( IT_SAMPLE *sample, DUMBFILE *f )
-{- long truncated_size;
-
- /* let's get rid of the sample data coming after the end of the loop */
- if ( ( sample->flags & IT_SAMPLE_LOOP ) && sample->loop_end < sample->length ) {- truncated_size = sample->length - sample->loop_end;
- sample->length = sample->loop_end;
- } else {- truncated_size = 0;
- }
-
- sample->data = malloc( sample->length );
-
- if ( !sample->data )
- return -1;
-
- if ( sample->length )
- dumbfile_getnc( sample->data, sample->length, f );
-
- dumbfile_skip( f, truncated_size );
-
- return dumbfile_error( f );
-}
-
-
-
-static DUMB_IT_SIGDATA *it_asy_load_sigdata(DUMBFILE *f)
-{- DUMB_IT_SIGDATA *sigdata;
- int i;
-
- static const char sig_part[] = "ASYLUM Music Format";
- static const char sig_rest[] = " V1.0"; /* whee, string space optimization with format type below */
-
- char signature [32];
-
- if ( dumbfile_getnc( signature, 32, f ) != 32 ||
- memcmp( signature, sig_part, 19 ) ||
- memcmp( signature + 19, sig_rest, 5 ) ) {- return NULL;
- }
-
- sigdata = malloc(sizeof(*sigdata));
- if (!sigdata) {- return NULL;
- }
-
- sigdata->speed = dumbfile_getc( f ); /* XXX seems to fit the files I have */
- sigdata->tempo = dumbfile_getc( f ); /* ditto */
- sigdata->n_samples = dumbfile_getc( f ); /* ditto */
- sigdata->n_patterns = dumbfile_getc( f );
- sigdata->n_orders = dumbfile_getc( f );
- sigdata->restart_position = dumbfile_getc( f );
-
- if ( dumbfile_error( f ) || !sigdata->n_samples || sigdata->n_samples > 64 || !sigdata->n_patterns ||
- !sigdata->n_orders ) {- free( sigdata );
- return NULL;
- }
-
- if ( sigdata->restart_position > sigdata->n_orders ) /* XXX */
- sigdata->restart_position = 0;
-
- sigdata->order = malloc( sigdata->n_orders );
- if ( !sigdata->order ) {- free( sigdata );
- return NULL;
- }
-
- if ( dumbfile_getnc( (char *) sigdata->order, sigdata->n_orders, f ) != sigdata->n_orders ||
- dumbfile_skip( f, 256 - sigdata->n_orders ) ) {- free( sigdata->order );
- free( sigdata );
- return NULL;
- }
-
- sigdata->sample = malloc( sigdata->n_samples * sizeof( *sigdata->sample ) );
- if ( !sigdata->sample ) {- free( sigdata->order );
- free( sigdata );
- return NULL;
- }
-
- sigdata->song_message = NULL;
- sigdata->instrument = NULL;
- sigdata->pattern = NULL;
- sigdata->midi = NULL;
- sigdata->checkpoint = NULL;
-
- sigdata->n_instruments = 0;
-
- for ( i = 0; i < sigdata->n_samples; ++i )
- sigdata->sample[i].data = NULL;
-
- for ( i = 0; i < sigdata->n_samples; ++i ) {- if ( it_asy_read_sample_header( &sigdata->sample[i], f ) ) {- _dumb_it_unload_sigdata( sigdata );
- return NULL;
- }
- }
-
- if ( dumbfile_skip( f, 37 * ( 64 - sigdata->n_samples ) ) ) {- _dumb_it_unload_sigdata( sigdata );
- return NULL;
- }
-
- sigdata->pattern = malloc( sigdata->n_patterns * sizeof( *sigdata->pattern ) );
- if ( !sigdata->pattern ) {- _dumb_it_unload_sigdata( sigdata );
- return NULL;
- }
- for (i = 0; i < sigdata->n_patterns; ++i)
- sigdata->pattern[i].entry = NULL;
-
- /* Read in the patterns */
- {- unsigned char *buffer = malloc( 64 * 8 * 4 ); /* 64 rows * 8 channels * 4 bytes */
- if ( !buffer ) {- _dumb_it_unload_sigdata( sigdata );
- return NULL;
- }
- for ( i = 0; i < sigdata->n_patterns; ++i ) {- if ( it_asy_read_pattern( &sigdata->pattern[i], f, buffer ) != 0 ) {- free( buffer );
- _dumb_it_unload_sigdata( sigdata );
- return NULL;
- }
- }
- free( buffer );
- }
-
- /* And finally, the sample data */
- for ( i = 0; i < sigdata->n_samples; ++i ) {- if ( it_asy_read_sample_data( &sigdata->sample[i], f ) ) {- _dumb_it_unload_sigdata( sigdata );
- return NULL;
- }
- }
-
- /* Now let's initialise the remaining variables, and we're done! */
- sigdata->flags = IT_WAS_AN_XM | IT_WAS_A_MOD | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_STEREO;
-
- sigdata->global_volume = 128;
- sigdata->mixing_volume = 48;
- sigdata->pan_separation = 128;
-
- sigdata->n_pchannels = 8;
-
- sigdata->name[0] = 0;
-
- memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
-
- for (i = 0; i < DUMB_IT_N_CHANNELS; i += 4) {- int sep = 32 * dumb_it_default_panning_separation / 100;
- sigdata->channel_pan[i+0] = 32 - sep;
- sigdata->channel_pan[i+1] = 32 + sep;
- sigdata->channel_pan[i+2] = 32 + sep;
- sigdata->channel_pan[i+3] = 32 - sep;
- }
-
- _dumb_it_fix_invalid_orders(sigdata);
-
- return sigdata;
-}
-
-
-
-DUH *dumb_read_asy_quick(DUMBFILE *f)
-{- sigdata_t *sigdata;
-
- DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
-
- sigdata = it_asy_load_sigdata(f);
-
- if (!sigdata)
- return NULL;
-
- {- const char *tag[2][2];
- tag[0][0] = "TITLE";
- tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
- tag[1][0] = "FORMAT";
- tag[1][1] = "ASYLUM Music Format";
- return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
- }
-}
--- a/dumb/src/it/readdsmf.c
+++ /dev/null
@@ -1,383 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readam.c - Code to read a RIFF DSMF module / / \ \
- * from a parsed RIFF structure. | < / \_
- * | \/ /\ /
- * By Chris Moeller. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-#include "internal/riff.h"
-
-static int it_riff_dsmf_process_sample( IT_SAMPLE * sample, DUMBFILE * f, int len )
-{- int flags;
-
- dumbfile_getnc( (char *) sample->filename, 13, f );
- sample->filename[ 14 ] = 0;
-
- flags = dumbfile_igetw( f );
- sample->default_volume = dumbfile_getc( f );
- sample->length = dumbfile_igetl( f );
- sample->loop_start = dumbfile_igetl( f );
- sample->loop_end = dumbfile_igetl( f );
- dumbfile_skip( f, 32 - 28 );
- sample->C5_speed = dumbfile_igetw( f ) * 2;
- dumbfile_skip( f, 36 - 34 );
- dumbfile_getnc( (char *) sample->name, 28, f );
- sample->name[ 28 ] = 0;
-
- /*if ( data[ 0x38 ] || data[ 0x39 ] || data[ 0x3A ] || data[ 0x3B ] )
- return -1;*/
-
- if ( ! sample->length ) {- sample->flags &= ~IT_SAMPLE_EXISTS;
- return 0;
- }
-
- /*if ( flags & ~( 2 | 1 ) )
- return -1;*/
-
- if ( sample->length + 64 > len )
- return -1;
-
- sample->flags = IT_SAMPLE_EXISTS;
-
- sample->default_pan = 0;
- sample->global_volume = 64;
- sample->vibrato_speed = 0;
- sample->vibrato_depth = 0;
- sample->vibrato_rate = 0;
- sample->vibrato_waveform = IT_VIBRATO_SINE;
- sample->finetune = 0;
- sample->max_resampling_quality = -1;
-
- if ( flags & 1 )
- {- if (((unsigned int)sample->loop_end <= (unsigned int)sample->length) &&
- ((unsigned int)sample->loop_start < (unsigned int)sample->loop_end))
- {- sample->length = sample->loop_end;
- sample->flags |= IT_SAMPLE_LOOP;
- if ( flags & 0x10 ) sample->flags |= IT_SAMPLE_PINGPONG_LOOP;
- }
- }
-
- sample->data = malloc( sample->length );
- if ( ! sample->data )
- return -1;
-
- dumbfile_getnc( sample->data, sample->length, f );
-
- if ( ! ( flags & 2 ) )
- {- for ( flags = 0; flags < sample->length; ++flags )
- ( ( signed char * ) sample->data ) [ flags ] ^= 0x80;
- }
-
- return 0;
-}
-
-static int it_riff_dsmf_process_pattern( IT_PATTERN * pattern, DUMBFILE * f, int len )
-{- int length, row;
- unsigned flags;
- long start, end;
- int p, q, r;
- IT_ENTRY * entry;
-
- length = dumbfile_igetw( f );
- if ( length > len ) return -1;
-
- len = length - 2;
-
- pattern->n_rows = 64;
- pattern->n_entries = 64;
-
- row = 0;
-
- start = dumbfile_pos( f );
- end = start + len;
-
- while ( (row < 64) && !dumbfile_error( f ) && (dumbfile_pos( f ) < end) ) {- p = dumbfile_getc( f );
- if ( ! p ) {- ++ row;
- continue;
- }
-
- flags = p & 0xF0;
-
- if (flags) {- ++ pattern->n_entries;
- if (flags & 0x80) dumbfile_skip( f, 1 );
- if (flags & 0x40) dumbfile_skip( f, 1 );
- if (flags & 0x20) dumbfile_skip( f, 1 );
- if (flags & 0x10) dumbfile_skip( f, 2 );
- }
- }
-
- if ( pattern->n_entries == 64 ) return 0;
-
- pattern->entry = malloc( pattern->n_entries * sizeof( * pattern->entry ) );
- if ( ! pattern->entry ) return -1;
-
- entry = pattern->entry;
-
- row = 0;
-
- if ( dumbfile_seek( f, start, DFS_SEEK_SET ) ) return -1;
-
- while ( ( row < 64 ) && !dumbfile_error( f ) && ( dumbfile_pos( f ) < end ) )
- {- p = dumbfile_getc( f );
- if ( ! p )
- {- IT_SET_END_ROW( entry );
- ++ entry;
- ++ row;
- continue;
- }
-
- flags = p;
- entry->channel = flags & 0x0F;
- entry->mask = 0;
-
- if ( flags & 0xF0 )
- {- if ( flags & 0x80 )
- {- q = dumbfile_getc( f );
- if ( q )
- {- entry->mask |= IT_ENTRY_NOTE;
- entry->note = q - 1;
- }
- }
-
- if ( flags & 0x40 )
- {- q = dumbfile_getc( f );
- if ( q )
- {- entry->mask |= IT_ENTRY_INSTRUMENT;
- entry->instrument = q;
- }
- }
-
- if ( flags & 0x20 )
- {- entry->mask |= IT_ENTRY_VOLPAN;
- entry->volpan = dumbfile_getc( f );
- }
-
- if ( flags & 0x10 )
- {- q = dumbfile_getc( f );
- r = dumbfile_getc( f );
- _dumb_it_xm_convert_effect( q, r, entry, 0 );
- }
-
- if (entry->mask) entry++;
- }
- }
-
- while ( row < 64 )
- {- IT_SET_END_ROW( entry );
- ++ entry;
- ++ row;
- }
-
- pattern->n_entries = entry - pattern->entry;
- if ( ! pattern->n_entries ) return -1;
-
- return 0;
-}
-
-static DUMB_IT_SIGDATA *it_riff_dsmf_load_sigdata( DUMBFILE * f, struct riff * stream )
-{- DUMB_IT_SIGDATA *sigdata;
-
- int n, o, found;
-
- if ( ! stream ) goto error;
-
- if ( stream->type != DUMB_ID( 'D', 'S', 'M', 'F' ) ) goto error;
-
- sigdata = malloc(sizeof(*sigdata));
- if ( ! sigdata ) goto error;
-
- sigdata->n_patterns = 0;
- sigdata->n_samples = 0;
- sigdata->name[0] = 0;
-
- found = 0;
-
- for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
- {- struct riff_chunk * c = stream->chunks + n;
- switch( c->type )
- {- case DUMB_ID( 'S' ,'O' ,'N' ,'G' ):
- /* initialization data */
- if ( ( found ) || ( c->size < 192 ) ) goto error_sd;
- found = 1;
- break;
-
- case DUMB_ID( 'P', 'A', 'T', 'T' ):
- ++ sigdata->n_patterns;
- break;
-
- case DUMB_ID( 'I', 'N', 'S', 'T' ):
- ++ sigdata->n_samples;
- break;
- }
- }
-
- if ( !found || !sigdata->n_samples || !sigdata->n_patterns ) goto error_sd;
-
- if ( sigdata->n_samples > 255 || sigdata->n_patterns > 255 ) goto error_sd;
-
- sigdata->song_message = NULL;
- sigdata->order = NULL;
- sigdata->instrument = NULL;
- sigdata->sample = NULL;
- sigdata->pattern = NULL;
- sigdata->midi = NULL;
- sigdata->checkpoint = NULL;
-
- sigdata->mixing_volume = 48;
- sigdata->pan_separation = 128;
-
- sigdata->n_instruments = 0;
- sigdata->n_orders = 0;
- sigdata->restart_position = 0;
-
- memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
-
- for (n = 0; n < DUMB_IT_N_CHANNELS; n += 4) {- int sep = 32 * dumb_it_default_panning_separation / 100;
- sigdata->channel_pan[n ] = 32 - sep;
- sigdata->channel_pan[n+1] = 32 + sep;
- sigdata->channel_pan[n+2] = 32 + sep;
- sigdata->channel_pan[n+3] = 32 - sep;
- }
-
- for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
- {- struct riff_chunk * c = stream->chunks + n;
- switch ( c->type )
- {- case DUMB_ID( 'S', 'O', 'N', 'G' ):
- if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
- dumbfile_getnc( (char *) sigdata->name, 28, f );
- sigdata->name[ 28 ] = 0;
- sigdata->flags = IT_STEREO | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX;
- dumbfile_skip( f, 36 - 28 );
- sigdata->n_orders = dumbfile_igetw( f );
- //sigdata->n_samples = ptr[ 38 ] | ( ptr[ 39 ] << 8 ); // whatever
- //sigdata->n_patterns = ptr[ 40 ] | ( ptr[ 41 ] << 8 );
- dumbfile_skip( f, 42 - 38 );
- sigdata->n_pchannels = dumbfile_igetw( f );
- sigdata->global_volume = dumbfile_getc( f );
- sigdata->mixing_volume = dumbfile_getc( f );
- sigdata->speed = dumbfile_getc( f );
- sigdata->tempo = dumbfile_getc( f );
-
- for ( o = 0; o < 16; ++o )
- {- sigdata->channel_pan[ o ] = dumbfile_getc( f ) / 2;
- }
-
- sigdata->order = malloc( 128 );
- if ( ! sigdata->order ) goto error_usd;
- dumbfile_getnc( (char *) sigdata->order, 128, f );
-
- break;
- }
- }
-
- sigdata->pattern = malloc( sigdata->n_patterns * sizeof( *sigdata->pattern ) );
- if ( ! sigdata->pattern ) goto error_usd;
- for ( n = 0; n < sigdata->n_patterns; ++n )
- sigdata->pattern[ n ].entry = NULL;
-
- sigdata->sample = malloc( sigdata->n_samples * sizeof( *sigdata->sample ) );
- if ( ! sigdata->sample ) goto error_usd;
- for ( n = 0; n < sigdata->n_samples; ++n )
- {- IT_SAMPLE * sample = sigdata->sample + n;
- sample->data = NULL;
- }
-
- sigdata->n_samples = 0;
- sigdata->n_patterns = 0;
-
- for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
- {- struct riff_chunk * c = stream->chunks + n;
- switch ( c->type )
- {- case DUMB_ID( 'P', 'A', 'T', 'T' ):
- if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
- if ( it_riff_dsmf_process_pattern( sigdata->pattern + sigdata->n_patterns, f, c->size ) ) goto error_usd;
- ++ sigdata->n_patterns;
- break;
-
- case DUMB_ID( 'I', 'N', 'S', 'T' ):
- if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
- if ( it_riff_dsmf_process_sample( sigdata->sample + sigdata->n_samples, f, c->size ) ) goto error_usd;
- ++ sigdata->n_samples;
- break;
- }
- }
-
- _dumb_it_fix_invalid_orders( sigdata );
-
- return sigdata;
-
-error_usd:
- _dumb_it_unload_sigdata( sigdata );
- goto error;
-error_sd:
- free( sigdata );
-error:
- return NULL;
-}
-
-DUH *dumb_read_riff_dsmf( DUMBFILE * f, struct riff * stream )
-{- sigdata_t *sigdata;
-
- DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
-
- sigdata = it_riff_dsmf_load_sigdata( f, stream );
-
- if (!sigdata)
- return NULL;
-
- {- const char *tag[2][2];
- tag[0][0] = "TITLE";
- tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
- tag[1][0] = "FORMAT";
- tag[1][1] = "RIFF DSMF";
- return make_duh( -1, 2, ( const char * const (*) [ 2 ] ) tag, 1, & descptr, & sigdata );
- }
-}
--- a/dumb/src/it/readmod.c
+++ /dev/null
@@ -1,637 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readmod.c - Code to read a good old-fashioned / / \ \
- * Amiga module from an open file. | < / \_
- * | \/ /\ /
- * By entheh. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-static int it_mod_read_pattern(IT_PATTERN *pattern, DUMBFILE *f, int n_channels, unsigned char *buffer)
-{- int pos;
- int channel;
- int row;
- IT_ENTRY *entry;
-
- pattern->n_rows = 64;
-
- if (n_channels == 0) {- /* Read the first four channels, leaving gaps for the rest. */
- for (pos = 0; pos < 64*8*4; pos += 8*4)
- dumbfile_getnc((char *)buffer + pos, 4*4, f);
- /* Read the other channels into the gaps we left. */
- for (pos = 4*4; pos < 64*8*4; pos += 8*4)
- dumbfile_getnc((char *)buffer + pos, 4*4, f);
-
- n_channels = 8;
- } else
- dumbfile_getnc((char *)buffer, 64 * n_channels * 4, f);
-
- if (dumbfile_error(f))
- return -1;
-
- /* compute number of entries */
- pattern->n_entries = 64; /* Account for the row end markers */
- pos = 0;
- for (row = 0; row < 64; row++) {- for (channel = 0; channel < n_channels; channel++) {- if (buffer[pos+0] | buffer[pos+1] | buffer[pos+2] | buffer[pos+3])
- pattern->n_entries++;
- pos += 4;
- }
- }
-
- pattern->entry = malloc(pattern->n_entries * sizeof(*pattern->entry));
- if (!pattern->entry)
- return -1;
-
- entry = pattern->entry;
- pos = 0;
- for (row = 0; row < 64; row++) {- for (channel = 0; channel < n_channels; channel++) {- if (buffer[pos+0] | buffer[pos+1] | buffer[pos+2] | buffer[pos+3]) {- unsigned char sample = (buffer[pos+0] & 0xF0) | (buffer[pos+2] >> 4);
- int period = ((int)(buffer[pos+0] & 0x0F) << 8) | buffer[pos+1];
-
- entry->channel = channel;
- entry->mask = 0;
-
- if (period) {- int note;
- entry->mask |= IT_ENTRY_NOTE;
-
- /* frequency = (AMIGA_DIVISOR / 8) / (period * 2)
- * C-1: period = 214 -> frequency = 16726
- * so, set C5_speed to 16726
- * and period = 214 should translate to C5 aka 60
- * halve the period, go up an octive
- *
- * period = 214 / pow(DUMB_SEMITONE_BASE, note - 60)
- * pow(DUMB_SEMITONE_BASE, note - 60) = 214 / period
- * note - 60 = log(214/period) / log(DUMB_SEMITONE_BASE)
- */
- note = (int)floor(log(214.0/period) / log(DUMB_SEMITONE_BASE) + 60.5);
- entry->note = MID(0, note, 119);
- // or should we preserve the period?
- //entry->note = buffer[pos+0] & 0x0F; /* High nibble */
- //entry->volpan = buffer[pos+1]; /* Low byte */
- // and what about finetune?
- }
-
- if (sample) {- entry->mask |= IT_ENTRY_INSTRUMENT;
- entry->instrument = sample;
- }
-
- _dumb_it_xm_convert_effect(buffer[pos+2] & 0x0F, buffer[pos+3], entry, 1);
-
- entry++;
- }
- pos += 4;
- }
- IT_SET_END_ROW(entry);
- entry++;
- }
-
- return 0;
-}
-
-
-
-static int it_mod_read_sample_header(IT_SAMPLE *sample, DUMBFILE *f, unsigned long fft, int stk)
-{- int finetune, loop_start, loop_length;
-
-/**
- 21 22 Chars Sample 1 name. If the name is not a full
- 22 chars in length, it will be null
- terminated.
-
-If
-the sample name begins with a '#' character (ASCII $23 (35)) then this is
-assumed not to be an instrument name, and is probably a message.
-*/
- dumbfile_getnc((char *)sample->name, 22, f);
- sample->name[22] = 0;
-
- sample->filename[0] = 0;
-
- sample->length = dumbfile_mgetw(f) << 1;
- if (fft == DUMB_ID('F','E','S','T'))- finetune = (signed char)((-dumbfile_getc(f) & 0x1F) << 3) >> 3;
- else
- finetune = (signed char)(dumbfile_getc(f) << 4) >> 4; /* signed nibble */
-/** Each finetune step changes the note 1/8th of a semitone. */
- sample->global_volume = 64;
- sample->default_volume = dumbfile_getc(f); // Should we be setting global_volume to this instead?
- loop_start = dumbfile_mgetw(f);
- if ( !stk ) loop_start <<= 1;
- loop_length = dumbfile_mgetw(f) << 1;
- if ( loop_length > 2 && loop_start + loop_length > sample->length && loop_start / 2 + loop_length <= sample->length )
- loop_start /= 2;
- sample->loop_start = loop_start;
- sample->loop_end = loop_start + loop_length;
-/**
-Once this sample has been played completely from beginning
-to end, if the repeat length (next field) is greater than two bytes it
-will loop back to this position in the sample and continue playing. Once
-it has played for the repeat length, it continues to loop back to the
-repeat start offset. This means the sample continues playing until it is
-told to stop.
-*/
-
- if (sample->length <= 0) {- sample->flags = 0;
- return 0;
- }
-
- sample->flags = IT_SAMPLE_EXISTS;
-
- sample->default_pan = 0;
- sample->C5_speed = (int)( AMIGA_CLOCK / 214.0 ); //(long)(16726.0*pow(DUMB_PITCH_BASE, finetune*32));
- sample->finetune = finetune * ((fft == DUMB_ID('F','E','S','T')) ? 16 : 32);- // the above line might be wrong
-
- if (sample->loop_end > sample->length)
- sample->loop_end = sample->length;
-
- if (sample->loop_end - sample->loop_start > 2)
- sample->flags |= IT_SAMPLE_LOOP;
-
- sample->vibrato_speed = 0;
- sample->vibrato_depth = 0;
- sample->vibrato_rate = 0;
- sample->vibrato_waveform = 0; // do we have to set _all_ these?
- sample->max_resampling_quality = -1;
-
- return dumbfile_error(f);
-}
-
-
-
-static int it_mod_read_sample_data(IT_SAMPLE *sample, DUMBFILE *f, unsigned long fft)
-{- long i;
- long truncated_size;
-
- /* let's get rid of the sample data coming after the end of the loop */
- if ((sample->flags & IT_SAMPLE_LOOP) && sample->loop_end < sample->length) {- truncated_size = sample->length - sample->loop_end;
- sample->length = sample->loop_end;
- } else {- truncated_size = 0;
- }
-
- if (sample->length) {- sample->data = malloc(sample->length);
-
- if (!sample->data)
- return -1;
-
- /* Sample data are stored in "8-bit two's compliment format" (sic). */
- /*
- for (i = 0; i < sample->length; i++)
- ((signed char *)sample->left)[i] = dumbfile_getc(f);
- */
- /* F U Olivier Lapicque */
- if (sample->length >= 5)
- {- i = dumbfile_getnc(sample->data, 5, f);
- if (i == 5)
- {- if (!memcmp(sample->data, "ADPCM", 5))
- {- if (_dumb_it_read_sample_data_adpcm4(sample, f) < 0)
- return -1;
-
- return 0;
- }
- else
- {- i += dumbfile_getnc(((char *)sample->data) + 5, sample->length - 5, f);
- }
- }
- }
- else
- {- i = dumbfile_getnc(sample->data, sample->length, f);
- }
- if (i < sample->length)
- {- if (i <= 0)
- {- sample->flags = 0;
- return 0;
- }
- sample->length = i;
- if (sample->loop_end > i) sample->loop_end = i;
- // holy crap!
- if (sample->loop_start > i) sample->flags &= ~IT_SAMPLE_LOOP;
- }
- else
- {- /* skip truncated data */
- int feh = dumbfile_error(f);
-
- if (truncated_size) dumbfile_skip(f, truncated_size);
- // Should we be truncating it?
-
- if (feh)
- return -1;
- }
-
- if (fft == DUMB_ID('M',0,0,0) || fft == DUMB_ID('8',0,0,0)) {- int delta = 0;
- for (i = 0; i < sample->length; i++) {- delta += ((signed char *)sample->data)[i];
- ((signed char *)sample->data)[i] = delta;
- }
- }
- }
-
- return 0;
-}
-
-
-
-#define MOD_FFT_OFFSET (20 + 31*(22+2+1+1+2+2) + 1 + 1 + 128)
-
-static DUMB_IT_SIGDATA *it_mod_load_sigdata(DUMBFILE *f, int restrict_)
-{- DUMB_IT_SIGDATA *sigdata;
- int n_channels;
- int i;
- unsigned long fft;
-
- if ( dumbfile_seek(f, MOD_FFT_OFFSET, DFS_SEEK_SET) )
- return NULL;
-
- fft = dumbfile_mgetl(f);
- if (dumbfile_error(f))
- return NULL;
-
- if ( dumbfile_seek(f, 0, DFS_SEEK_SET) )
- return NULL;
-
- sigdata = malloc(sizeof(*sigdata));
- if (!sigdata) {- return NULL;
- }
-
- /**
- 1 20 Chars Title of the song. If the title is not a
- full 20 chars in length, it will be null-
- terminated.
- */
- if (dumbfile_getnc((char *)sigdata->name, 20, f) < 20) {- free(sigdata);
- return NULL;
- }
- sigdata->name[20] = 0;
-
- sigdata->n_samples = 31;
-
- switch (fft) {- case DUMB_ID('M','.','K','.'):- case DUMB_ID('M','!','K','!'):- case DUMB_ID('M','&','K','!'):- case DUMB_ID('N','.','T','.'):- case DUMB_ID('N','S','M','S'):- case DUMB_ID('F','L','T','4'):- case DUMB_ID('M',0,0,0):- case DUMB_ID('8',0,0,0):- case DUMB_ID('F','E','S','T'):- n_channels = 4;
- break;
- case DUMB_ID('F','L','T','8'):- n_channels = 0;
- /* 0 indicates a special case; two four-channel patterns must be
- * combined into one eight-channel pattern. Pattern indexes must
- * be halved. Why oh why do they obfuscate so?
- */
- /*for (i = 0; i < 128; i++)
- sigdata->order[i] >>= 1;*/
- break;
- case DUMB_ID('C','D','8','1'):- case DUMB_ID('O','C','T','A'):- case DUMB_ID('O','K','T','A'):- n_channels = 8;
- break;
- case DUMB_ID('1','6','C','N'):- n_channels = 16;
- break;
- case DUMB_ID('3','2','C','N'):- n_channels = 32;
- break;
- default:
- /* If we get an illegal tag, assume 4 channels 15 samples. */
- if ((fft & 0x0000FFFFL) == DUMB_ID(0,0,'C','H')) {- if (fft >= '1' << 24 && fft < '4' << 24) {- n_channels = ((fft & 0x00FF0000L) >> 16) - '0';
- if ((unsigned int)n_channels >= 10) {- /* Rightmost character wasn't a digit. */
- n_channels = 4;
- sigdata->n_samples = 15;
- } else {- n_channels += (((fft & 0xFF000000L) >> 24) - '0') * 10;
- /* MODs should really only go up to 32 channels, but we're lenient. */
- if ((unsigned int)(n_channels - 1) >= DUMB_IT_N_CHANNELS - 1) {- /* No channels or too many? Can't be right... */
- n_channels = 4;
- sigdata->n_samples = 15;
- }
- }
- } else {- n_channels = 4;
- sigdata->n_samples = 15;
- }
- } else if ((fft & 0x00FFFFFFL) == DUMB_ID(0,'C','H','N')) {- n_channels = (fft >> 24) - '0';
- if ((unsigned int)(n_channels - 1) >= 9) {- /* Character was '0' or it wasn't a digit */
- n_channels = 4;
- sigdata->n_samples = 15;
- }
- } else if ((fft & 0xFFFFFF00L) == DUMB_ID('T','D','Z',0)) {- n_channels = (fft & 0x000000FFL) - '0';
- if ((unsigned int)(n_channels - 1) >= 9) {- /* We've been very lenient, given that it should have
- * been 1, 2 or 3, but this MOD has been very naughty and
- * must be punished.
- */
- n_channels = 4;
- sigdata->n_samples = 15;
- }
- } else {- n_channels = 4;
- sigdata->n_samples = 15;
- fft = 0;
- }
- }
-
- // moo
- if ( ( restrict_ & 1 ) && sigdata->n_samples == 15 )
- {- free(sigdata);
- return NULL;
- }
-
- sigdata->n_pchannels = n_channels ? n_channels : 8; /* special case for 0, see above */
-
- sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
- if (!sigdata->sample) {- free(sigdata);
- return NULL;
- }
-
- sigdata->song_message = NULL;
- sigdata->order = NULL;
- sigdata->instrument = NULL;
- sigdata->pattern = NULL;
- sigdata->midi = NULL;
- sigdata->checkpoint = NULL;
-
- sigdata->n_instruments = 0;
-
- for (i = 0; i < sigdata->n_samples; i++)
- sigdata->sample[i].data = NULL;
-
- for (i = 0; i < sigdata->n_samples; i++) {- if (it_mod_read_sample_header(&sigdata->sample[i], f, fft, sigdata->n_samples == 15)) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- }
-
- sigdata->n_orders = dumbfile_getc(f);
- sigdata->restart_position = dumbfile_getc(f);
- // what if this is >= 127? what about with Fast Tracker II?
-
-/* if (sigdata->n_orders <= 0 || sigdata->n_orders > 128) { // is this right?- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }*/
-
- //if (sigdata->restart_position >= sigdata->n_orders)
- //sigdata->restart_position = 0;
-
- sigdata->order = malloc(128); /* We may need to scan the extra ones! */
- if (!sigdata->order) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- if (dumbfile_getnc((char *)sigdata->order, 128, f) < 128) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- if (sigdata->n_orders <= 0 || sigdata->n_orders > 128) { // is this right?- sigdata->n_orders = 128;
- //while (sigdata->n_orders > 1 && !sigdata->order[sigdata->n_orders - 1]) sigdata->n_orders--;
- }
-
- if ( ! n_channels )
- for (i = 0; i < 128; i++)
- sigdata->order[i] >>= 1;
-
- /* "The old NST format contains only 15 samples (instead of 31). Further
- * it doesn't contain a file format tag (id). So Pattern data offset is
- * at 20+15*30+1+1+128."
- * - Then I shall assume the File Format Tag never exists if there are
- * only 15 samples. I hope this isn't a faulty assumption...
- */
- if (sigdata->n_samples == 31)
- dumbfile_skip(f, 4);
-
- sigdata->n_patterns = -1;
-
- if ( ( restrict_ & 2 ) )
- {- unsigned char buffer[5];
- long sample_number;
- long total_sample_size;
- long offset = dumbfile_pos(f);
- long remain = dumbfile_get_size(f) - offset;
- if ( dumbfile_error( f ) ||
- dumbfile_seek( f, 0, SEEK_END ) ) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- sample_number = sigdata->n_samples - 1;
- total_sample_size = 0;
- while (dumbfile_pos(f) > offset && sample_number >= 0) {- if (sigdata->sample[sample_number].flags & IT_SAMPLE_EXISTS) {- if ( dumbfile_seek(f, -((sigdata->sample[sample_number].length + 1) / 2 + 5 + 16), DFS_SEEK_CUR) ||
- dumbfile_getnc((char *)buffer, 5, f) < 5 ) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- if ( !memcmp( buffer, "ADPCM", 5 ) ) { /* BAH */- total_sample_size += (sigdata->sample[sample_number].length + 1) / 2 + 5 + 16;
- if ( dumbfile_seek(f, -5, DFS_SEEK_CUR) ) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- } else {- total_sample_size += sigdata->sample[sample_number].length;
- if ( dumbfile_seek(f, -(sigdata->sample[sample_number].length - ((sigdata->sample[sample_number].length + 1) / 2 + 5 + 16) + 5), DFS_SEEK_CUR) ) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- }
- }
- --sample_number;
- }
-
- if (remain > total_sample_size) {- sigdata->n_patterns = ( remain - total_sample_size + 4 ) / ( 256 * sigdata->n_pchannels );
- if (fft == DUMB_ID('M',0,0,0) || fft == DUMB_ID('8',0,0,0)) {- remain -= sigdata->n_patterns * 256 * sigdata->n_pchannels;
- if (dumbfile_skip(f, remain - total_sample_size)) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- }
- }
- }
- else
- {- for (i = 0; i < 128; i++)
- {- if (sigdata->order[i] > sigdata->n_patterns)
- sigdata->n_patterns = sigdata->order[i];
- }
- sigdata->n_patterns++;
- }
-
- if ( sigdata->n_patterns <= 0 ) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- /* May as well try to save a tiny bit of memory. */
- if (sigdata->n_orders < 128) {- unsigned char *order = realloc(sigdata->order, sigdata->n_orders);
- if (order) sigdata->order = order;
- }
-
- sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
- if (!sigdata->pattern) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (i = 0; i < sigdata->n_patterns; i++)
- sigdata->pattern[i].entry = NULL;
-
- /* Read in the patterns */
- {- unsigned char *buffer = malloc(256 * sigdata->n_pchannels); /* 64 rows * 4 bytes */
- if (!buffer) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (i = 0; i < sigdata->n_patterns; i++) {- if (it_mod_read_pattern(&sigdata->pattern[i], f, n_channels, buffer) != 0) {- free(buffer);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- }
- free(buffer);
- }
-
- /* And finally, the sample data */
- for (i = 0; i < sigdata->n_samples; i++) {- if (it_mod_read_sample_data(&sigdata->sample[i], f, fft)) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- }
-
- /* w00t! */
- /*if ( n_channels == 4 &&
- ( sigdata->n_samples == 15 ||
- ( ( fft & 240 ) != DUMB_ID( 0, 0, 'C', 0 ) &&
- ( fft & 240 ) != DUMB_ID( 0, 0, 'H', 0 ) &&
- ( fft & 240 ) != 0 ) ) ) {- for ( i = 0; i < sigdata->n_samples; ++i ) {- IT_SAMPLE * sample = &sigdata->sample [i];
- if ( sample && ( sample->flags & IT_SAMPLE_EXISTS ) ) {- int n, o;
- o = sample->length;
- if ( o > 4 ) o = 4;
- for ( n = 0; n < o; ++n )
- ( ( char * ) sample->data ) [n] = 0;
- }
- }
- }*/
-
- /* Now let's initialise the remaining variables, and we're done! */
- sigdata->flags = IT_WAS_AN_XM | IT_WAS_A_MOD | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_STEREO;
-
- sigdata->global_volume = 128;
- sigdata->mixing_volume = 48;
- /* We want 50 ticks per second; 50/6 row advances per second;
- * 50*10=500 row advances per minute; 500/4=125 beats per minute.
- */
- sigdata->speed = 6;
- sigdata->tempo = 125;
- sigdata->pan_separation = 128;
-
- memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
-
- for (i = 0; i < DUMB_IT_N_CHANNELS; i += 4) {- int sep = 32 * dumb_it_default_panning_separation / 100;
- sigdata->channel_pan[i+0] = 32 - sep;
- sigdata->channel_pan[i+1] = 32 + sep;
- sigdata->channel_pan[i+2] = 32 + sep;
- sigdata->channel_pan[i+3] = 32 - sep;
- }
-
- _dumb_it_fix_invalid_orders(sigdata);
-
- return sigdata;
-}
-
-
-
-DUH *dumb_read_mod_quick(DUMBFILE *f, int restrict_)
-{- sigdata_t *sigdata;
-
- DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
-
- sigdata = it_mod_load_sigdata(f, restrict_);
-
- if (!sigdata)
- return NULL;
-
- {- const char *tag[2][2];
- tag[0][0] = "TITLE";
- tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
- tag[1][0] = "FORMAT";
- tag[1][1] = "MOD";
- return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
- }
-}
--- a/dumb/src/it/readmod2.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readmod2.c - Function to read a good old- / / \ \
- * fashioned Amiga module from an | < / \_
- * open file and do an initial | \/ /\ /
- * run-through. \_ / > /
- * | \ / /
- * Split off from readmod.c by entheh. | ' /
- * \__/
- */
-
-#include "dumb.h"
-
-
-
-DUH *dumb_read_mod(DUMBFILE *f, int restrict_)
-{- DUH *duh = dumb_read_mod_quick(f, restrict_);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/readmtm.c
+++ /dev/null
@@ -1,413 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readmtm.c - Code to read a MultiTracker Module / / \ \
- * from an open file. | < / \_
- * | \/ /\ /
- * By Chris Moeller. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-
-size_t strlen_max(const char * ptr, size_t max)
-{- const char * end, * start;
- if (ptr==0) return 0;
- start = ptr;
- end = ptr + max;
- while(*ptr && ptr < end) ptr++;
- return ptr - start;
-}
-
-static int it_mtm_assemble_pattern(IT_PATTERN *pattern, const unsigned char * track, const unsigned short * sequence, int n_rows)
-{- int n, o, note, sample;
- const unsigned char * t;
- IT_ENTRY * entry;
-
- pattern->n_rows = n_rows;
- pattern->n_entries = n_rows;
-
- for (n = 0; n < 32; n++) {- if (sequence[n]) {- t = &track[192 * (sequence[n] - 1)];
- for (o = 0; o < n_rows; o++) {- if (t[0] || t[1] || t[2]) pattern->n_entries++;
- t += 3;
- }
- }
- }
-
- entry = malloc(pattern->n_entries * sizeof(*entry));
- if (!entry) return -1;
- pattern->entry = entry;
-
- for (n = 0; n < n_rows; n++) {- for (o = 0; o < 32; o++) {- if (sequence[o]) {- t = &track[192 * (sequence[o] - 1) + (n * 3)];
- if (t[0] || t[1] || t[2]) {- entry->channel = o;
- entry->mask = 0;
- note = t[0] >> 2;
- sample = ((t[0] << 4) | (t[1] >> 4)) & 0x3F;
-
- if (note) {- entry->mask |= IT_ENTRY_NOTE;
- entry->note = note + 24;
- }
-
- if (sample) {- entry->mask |= IT_ENTRY_INSTRUMENT;
- entry->instrument = sample;
- }
-
- _dumb_it_xm_convert_effect(t[1] & 0xF, t[2], entry, 1);
-
- if (entry->mask) entry++;
- }
- }
- }
- IT_SET_END_ROW(entry);
- entry++;
- }
-
- pattern->n_entries = entry - pattern->entry;
-
- return 0;
-}
-
-static int it_mtm_read_sample_header(IT_SAMPLE *sample, DUMBFILE *f)
-{- int finetune, flags;
-
- dumbfile_getnc((char *)sample->name, 22, f);
- sample->name[22] = 0;
-
- sample->filename[0] = 0;
-
- sample->length = dumbfile_igetl(f);
- sample->loop_start = dumbfile_igetl(f);
- sample->loop_end = dumbfile_igetl(f);
- finetune = (signed char)(dumbfile_getc(f) << 4) >> 4; /* signed nibble */
- sample->global_volume = 64;
- sample->default_volume = dumbfile_getc(f);
-
- flags = dumbfile_getc(f);
-
- if (sample->length <= 0) {- sample->flags = 0;
- return 0;
- }
-
- sample->flags = IT_SAMPLE_EXISTS;
-
- if (flags & 1) {- sample->flags |= IT_SAMPLE_16BIT;
- sample->length >>= 1;
- sample->loop_start >>= 1;
- sample->loop_end >>= 1;
- }
-
- sample->default_pan = 0;
- sample->C5_speed = (int)( AMIGA_CLOCK / 214.0 );//(long)(16726.0*pow(DUMB_PITCH_BASE, finetune*32));
- sample->finetune = finetune * 32;
- // the above line might be wrong
-
- if (sample->loop_end > sample->length)
- sample->loop_end = sample->length;
-
- if (sample->loop_end - sample->loop_start > 2)
- sample->flags |= IT_SAMPLE_LOOP;
-
- sample->vibrato_speed = 0;
- sample->vibrato_depth = 0;
- sample->vibrato_rate = 0;
- sample->vibrato_waveform = 0; // do we have to set _all_ these?
- sample->max_resampling_quality = -1;
-
- return dumbfile_error(f);
-}
-
-static int it_mtm_read_sample_data(IT_SAMPLE *sample, DUMBFILE *f)
-{- long i;
- long truncated_size;
-
- /* let's get rid of the sample data coming after the end of the loop */
- if ((sample->flags & IT_SAMPLE_LOOP) && sample->loop_end < sample->length) {- truncated_size = sample->length - sample->loop_end;
- sample->length = sample->loop_end;
- } else {- truncated_size = 0;
- }
-
- sample->data = malloc(sample->length);
-
- if (!sample->data)
- return -1;
-
- dumbfile_getnc((char *)sample->data, sample->length, f);
- dumbfile_skip(f, truncated_size);
-
- if (dumbfile_error(f))
- return -1;
-
- for (i = 0; i < sample->length; i++)
- ((signed char *)sample->data)[i] ^= 0x80;
-
- return 0;
-}
-
-static DUMB_IT_SIGDATA *it_mtm_load_sigdata(DUMBFILE *f, int * version)
-{- DUMB_IT_SIGDATA *sigdata;
-
- int n, o, n_tracks, l_comment, n_rows, n_channels;
-
- unsigned char * track;
-
- unsigned short * sequence;
-
- char * comment;
-
- if (dumbfile_getc(f) != 'M' ||
- dumbfile_getc(f) != 'T' ||
- dumbfile_getc(f) != 'M') goto error;
-
- *version = dumbfile_getc(f);
-
- sigdata = malloc(sizeof(*sigdata));
- if (!sigdata) goto error;
-
- dumbfile_getnc((char *)sigdata->name, 20, f);
- sigdata->name[20] = 0;
-
- n_tracks = dumbfile_igetw(f);
- sigdata->n_patterns = dumbfile_getc(f) + 1;
- sigdata->n_orders = dumbfile_getc(f) + 1;
- l_comment = dumbfile_igetw(f);
- sigdata->n_samples = dumbfile_getc(f);
- //if (dumbfile_getc(f)) goto error_sd;
- dumbfile_getc(f);
- n_rows = dumbfile_getc(f);
- n_channels = dumbfile_getc(f);
-
- if (dumbfile_error(f) ||
- (n_tracks <= 0) ||
- (sigdata->n_samples <= 0) ||
- (n_rows <= 0 || n_rows > 64) ||
- (n_channels <= 0 || n_channels > 32)) goto error_sd;
-
- memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
-
- if (dumbfile_getnc((char *)sigdata->channel_pan, 32, f) < 32) goto error_sd;
-
- for (n = 0; n < 32; n++) {- if (sigdata->channel_pan[n] <= 15) {- sigdata->channel_pan[n] -= (sigdata->channel_pan[n] & 8) >> 3;
- sigdata->channel_pan[n] = (sigdata->channel_pan[n] * 32) / 7;
- } else {- sigdata->channel_volume[n] = 0;
- sigdata->channel_pan[n] = 7;
- }
- }
-
- for (n = 32; n < DUMB_IT_N_CHANNELS; n += 4) {- int sep = 32 * dumb_it_default_panning_separation / 100;
- sigdata->channel_pan[n ] = 32 - sep;
- sigdata->channel_pan[n+1] = 32 + sep;
- sigdata->channel_pan[n+2] = 32 + sep;
- sigdata->channel_pan[n+3] = 32 - sep;
- }
-
- sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
- if (!sigdata->sample) goto error_sd;
-
- sigdata->flags = IT_WAS_AN_XM | IT_WAS_A_MOD | IT_STEREO | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX;
-
- sigdata->global_volume = 128;
- sigdata->mixing_volume = 48;
- sigdata->speed = 6;
- sigdata->tempo = 125;
- sigdata->pan_separation = 128;
-
- sigdata->song_message = NULL;
- sigdata->order = NULL;
- sigdata->instrument = NULL;
- sigdata->pattern = NULL;
- sigdata->midi = NULL;
- sigdata->checkpoint = NULL;
-
- sigdata->n_instruments = 0;
-
- sigdata->restart_position = 0;
- sigdata->n_pchannels = n_channels;
-
- for (n = 0; n < sigdata->n_samples; n++)
- sigdata->sample[n].data = NULL;
-
- for (n = 0; n < sigdata->n_samples; n++) {- if (it_mtm_read_sample_header(&sigdata->sample[n], f)) goto error_usd;
- }
-
- sigdata->order = malloc(sigdata->n_orders);
- if (!sigdata->order) goto error_usd;
-
- if (dumbfile_getnc((char *)sigdata->order, sigdata->n_orders, f) < sigdata->n_orders) goto error_usd;
- if (sigdata->n_orders < 128)
- if (dumbfile_skip(f, 128 - sigdata->n_orders)) goto error_usd;
-
- track = malloc(192 * n_tracks);
- if (!track) goto error_usd;
-
- if (dumbfile_getnc((char *)track, 192 * n_tracks, f) < 192 * n_tracks) goto error_ft;
-
- sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
- if (!sigdata->pattern) goto error_ft;
- for (n = 0; n < sigdata->n_patterns; n++)
- sigdata->pattern[n].entry = NULL;
-
- sequence = malloc(sigdata->n_patterns * 32 * sizeof(*sequence));
- if (!sequence) goto error_ft;
-
- for (n = 0; n < sigdata->n_patterns; n++) {- for (o = 0; o < 32; o++) {- sequence[(n * 32) + o] = dumbfile_igetw(f);
- if (sequence[(n * 32) + o] > n_tracks)
- {- //goto error_fs;
- // illegal track number, silence instead of rejecting the file
- sequence[(n * 32) + o] = 0;
- }
- }
- }
-
- for (n = 0; n < sigdata->n_patterns; n++) {- if (it_mtm_assemble_pattern(&sigdata->pattern[n], track, &sequence[n * 32], n_rows)) goto error_fs;
- }
-
- if (l_comment) {- comment = malloc(l_comment);
- if (!comment) goto error_fs;
- if (dumbfile_getnc(comment, l_comment, f) < l_comment) goto error_fc;
-
- /* Time for annoying "logic", yes. We want each line which has text,
- * and each blank line in between all the valid lines.
- */
-
- /* Find last actual line. */
- for (o = -1, n = 0; n < l_comment; n += 40) {- if (comment[n]) o = n;
- }
-
- if (o >= 0) {-
- int l, m;
-
- for (l = 0, n = 0; n <= o; n += 40) {- l += strlen_max(&comment[n], 40) + 2;
- }
-
- l -= 1;
-
- sigdata->song_message = malloc(l);
- if (!sigdata->song_message) goto error_fc;
-
- for (m = 0, n = 0; n <= o; n += 40) {- int p = strlen_max(&comment[n], 40);
- if (p) {- memcpy(sigdata->song_message + m, &comment[n], p);
- m += p;
- }
- if (l - m > 1) {- sigdata->song_message[m++] = 13;
- sigdata->song_message[m++] = 10;
- }
- }
-
- sigdata->song_message[m] = 0;
- }
-
- free(comment);
- }
-
- for (n = 0; n < sigdata->n_samples; n++) {- if (it_mtm_read_sample_data(&sigdata->sample[n], f)) goto error_fs;
- }
-
- _dumb_it_fix_invalid_orders(sigdata);
-
- free(sequence);
- free(track);
-
- return sigdata;
-
-error_fc:
- free(comment);
-error_fs:
- free(sequence);
-error_ft:
- free(track);
-error_usd:
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
-
-error_sd:
- free(sigdata);
-error:
- return NULL;
-}
-
-static char hexdigit(int in)
-{- if (in < 10) return in + '0';
- else return in + 'A' - 10;
-}
-
-DUH *dumb_read_mtm_quick(DUMBFILE *f)
-{- sigdata_t *sigdata;
- int ver;
-
- DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
-
- sigdata = it_mtm_load_sigdata(f, &ver);
-
- if (!sigdata)
- return NULL;
-
- {- char version[16];
- const char *tag[2][2];
- tag[0][0] = "TITLE";
- tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
- tag[1][0] = "FORMAT";
- version[0] = 'M';
- version[1] = 'T';
- version[2] = 'M';
- version[3] = ' ';
- version[4] = 'v';
- version[5] = hexdigit(ver >> 4);
- version[6] = '.';
- version[7] = hexdigit(ver & 15);
- version[8] = 0;
- tag[1][1] = (const char *) &version;
- return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
- }
-}
--- a/dumb/src/it/readokt.c
+++ /dev/null
@@ -1,558 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readokt.c - Code to read an Oktalyzer module / / \ \
- * from an open file. | < / \_
- * | \/ /\ /
- * By Chris Moeller. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-static int it_okt_read_pattern(IT_PATTERN *pattern, const unsigned char *data, int length, int n_channels)
-{- int pos;
- int channel;
- int row;
- int n_rows;
- IT_ENTRY *entry;
-
- if (length < 2) return -1;
-
- n_rows = (data[0] << 8) | data[1];
- if (!n_rows) n_rows = 64;
-
- if (length < 2 + (n_rows * n_channels * 4)) return -1;
-
- pattern->n_rows = n_rows;
-
- /* compute number of entries */
- pattern->n_entries = n_rows; /* Account for the row end markers */
- pos = 2;
- for (row = 0; row < pattern->n_rows; row++) {- for (channel = 0; channel < n_channels; channel++) {- if (data[pos+0] | data[pos+2])
- pattern->n_entries++;
- pos += 4;
- }
- }
-
- pattern->entry = (IT_ENTRY *) malloc(pattern->n_entries * sizeof(*pattern->entry));
- if (!pattern->entry)
- return -1;
-
- entry = pattern->entry;
- pos = 2;
- for (row = 0; row < n_rows; row++) {- for (channel = 0; channel < n_channels; channel++) {- if (data[pos+0] | data[pos+2]) {- entry->channel = channel;
- entry->mask = 0;
-
- if (data[pos+0] > 0 && data[pos+0] <= 36) {- entry->mask |= IT_ENTRY_NOTE | IT_ENTRY_INSTRUMENT;
-
- entry->note = data[pos+0] + 35;
- entry->instrument = data[pos+1] + 1;
- }
-
- entry->effect = 0;
- entry->effectvalue = data[pos+3];
-
- switch (data[pos+2]) {- case 2: if (data[pos+3]) entry->effect = IT_PORTAMENTO_DOWN; break; // XXX code calls this rs_portu, but it's adding to the period, which decreases the pitch
- case 13: if (data[pos+3]) entry->effect = IT_OKT_NOTE_SLIDE_DOWN; break;
- case 21: if (data[pos+3]) entry->effect = IT_OKT_NOTE_SLIDE_DOWN_ROW; break;
-
- case 1: if (data[pos+3]) entry->effect = IT_PORTAMENTO_UP; break; // XXX same deal here, increasing the pitch
- case 17: if (data[pos+3]) entry->effect = IT_OKT_NOTE_SLIDE_UP; break;
- case 30: if (data[pos+3]) entry->effect = IT_OKT_NOTE_SLIDE_UP_ROW; break;
-
- case 10: if (data[pos+3]) entry->effect = IT_OKT_ARPEGGIO_3; break;
- case 11: if (data[pos+3]) entry->effect = IT_OKT_ARPEGGIO_4; break;
- case 12: if (data[pos+3]) entry->effect = IT_OKT_ARPEGGIO_5; break;
-
- case 15: entry->effect = IT_S; entry->effectvalue = EFFECT_VALUE(IT_S_SET_FILTER, data[pos+3] & 0x0F); break;
-
- case 25: entry->effect = IT_JUMP_TO_ORDER; break;
-
- case 27: entry->note = IT_NOTE_OFF; entry->mask |= IT_ENTRY_NOTE; break;
-
- case 28: entry->effect = IT_SET_SPEED; break;
-
- case 31:
- if ( data[pos+3] <= 0x40 ) entry->effect = IT_SET_CHANNEL_VOLUME;
- else if ( data[pos+3] <= 0x50 ) { entry->effect = IT_OKT_VOLUME_SLIDE_DOWN; entry->effectvalue = data[pos+3] - 0x40; }- else if ( data[pos+3] <= 0x60 ) { entry->effect = IT_OKT_VOLUME_SLIDE_UP; entry->effectvalue = data[pos+3] - 0x50; }- else if ( data[pos+3] <= 0x70 ) { entry->effect = IT_OKT_VOLUME_SLIDE_DOWN; entry->effectvalue = data[pos+3] - 0x50; }- else if ( data[pos+3] <= 0x80 ) { entry->effect = IT_OKT_VOLUME_SLIDE_UP; entry->effectvalue = data[pos+3] - 0x60; }- break;
- }
-
- if ( entry->effect ) entry->mask |= IT_ENTRY_EFFECT;
-
- entry++;
- }
- pos += 4;
- }
- IT_SET_END_ROW(entry);
- entry++;
- }
-
- return 0;
-}
-
-
-
-static void it_okt_read_sample_header(IT_SAMPLE *sample, const unsigned char * data)
-{- int loop_start, loop_length;
-
- memcpy(sample->name, data, 20);
- sample->name[20] = 0;
-
- sample->filename[0] = 0;
-
- sample->length = (data[20] << 24) | (data[21] << 16) | (data[22] << 8) | data[23];
- sample->global_volume = 64;
- sample->default_volume = data[29];
- loop_start = ((data[24] << 8) | data[25]) << 1;
- loop_length = ((data[26] << 8) | data[27]) << 1;
- sample->sus_loop_start = loop_start;
- sample->sus_loop_end = loop_start + loop_length;
-
- if (sample->length <= 0) {- sample->flags = 0;
- return;
- }
-
- sample->flags = IT_SAMPLE_EXISTS;
-
- sample->default_pan = 0;
- sample->C5_speed = (int)( AMIGA_CLOCK / 214.0 ); //(long)(16726.0*pow(DUMB_PITCH_BASE, finetune*32));
- sample->finetune = 0;
-
- if (sample->sus_loop_end > sample->length)
- sample->sus_loop_end = sample->length;
-
- if (loop_length > 2)
- sample->flags |= IT_SAMPLE_SUS_LOOP;
-
- sample->vibrato_speed = 0;
- sample->vibrato_depth = 0;
- sample->vibrato_rate = 0;
- sample->vibrato_waveform = 0; // do we have to set _all_ these?
- sample->max_resampling_quality = -1;
-}
-
-
-
-static int it_okt_read_sample_data(IT_SAMPLE *sample, const char * data, int length)
-{- if (length && sample->length) {- if (length < sample->length) {- sample->length = length;
- if (length < sample->sus_loop_end) sample->sus_loop_end = length;
- }
-
- sample->data = malloc(length);
-
- if (!sample->data)
- return -1;
-
- memcpy(sample->data, data, length);
- }
-
- return 0;
-}
-
-
-
-typedef struct IFF_CHUNK IFF_CHUNK;
-typedef struct IFF_CHUNKED IFF_CHUNKED;
-
-struct IFF_CHUNK
-{- unsigned type;
- unsigned char * data;
- unsigned size;
-};
-
-struct IFF_CHUNKED
-{- unsigned chunk_count;
- IFF_CHUNK * chunks;
-};
-
-
-
-static IFF_CHUNKED *dumbfile_read_okt(DUMBFILE *f)
-{- IFF_CHUNKED *mod = (IFF_CHUNKED *) malloc(sizeof(*mod));
- if (!mod) return NULL;
-
- mod->chunk_count = 0;
- mod->chunks = 0;
-
- for (;;)
- {- long bytes_read;
- IFF_CHUNK * chunk = ( IFF_CHUNK * ) realloc( mod->chunks, ( mod->chunk_count + 1 ) * sizeof( IFF_CHUNK ) );
- if ( !chunk )
- {- if ( mod->chunks ) free( mod->chunks );
- free( mod );
- return NULL;
- }
- mod->chunks = chunk;
- chunk += mod->chunk_count;
-
- bytes_read = dumbfile_mgetl( f );
- if ( bytes_read < 0 ) break;
-
- chunk->type = bytes_read;
- chunk->size = dumbfile_mgetl( f );
-
- if ( dumbfile_error( f ) ) break;
-
- chunk->data = (unsigned char *) malloc( chunk->size );
- if ( !chunk->data )
- {- free( mod->chunks );
- free( mod );
- return NULL;
- }
-
- bytes_read = dumbfile_getnc( ( char * ) chunk->data, chunk->size, f );
- if ( bytes_read < chunk->size )
- {- if ( bytes_read <= 0 ) {- free( chunk->data );
- break;
- } else {- chunk->size = bytes_read;
- mod->chunk_count++;
- break;
- }
- }
-
- mod->chunk_count++;
- }
-
- if ( !mod->chunk_count ) {- if ( mod->chunks ) free(mod->chunks);
- free(mod);
- mod = NULL;
- }
-
- return mod;
-}
-
-void free_okt(IFF_CHUNKED * mod)
-{- unsigned i;
- if (mod)
- {- if (mod->chunks)
- {- for (i = 0; i < mod->chunk_count; i++)
- {- if (mod->chunks[i].data) free(mod->chunks[i].data);
- }
- free(mod->chunks);
- }
- free(mod);
- }
-}
-
-const IFF_CHUNK * get_chunk_by_type(IFF_CHUNKED * mod, unsigned type, unsigned offset)
-{- unsigned i;
- if (mod)
- {- if (mod->chunks)
- {- for (i = 0; i < mod->chunk_count; i++)
- {- if (mod->chunks[i].type == type)
- {- if (!offset) return &mod->chunks[i];
- else offset--;
- }
- }
- }
- }
- return NULL;
-}
-
-unsigned get_chunk_count(IFF_CHUNKED *mod, unsigned type)
-{- unsigned i, count = 0;
- if (mod)
- {- if (mod->chunks)
- {- for (i = 0; i < mod->chunk_count; i++)
- {- if (mod->chunks[i].type == type) count++;
- }
- }
- }
- return count;
-}
-
-
-static DUMB_IT_SIGDATA *it_okt_load_sigdata(DUMBFILE *f)
-{- DUMB_IT_SIGDATA *sigdata;
- int n_channels;
- int i, j, k, l;
- IFF_CHUNKED *mod;
- const IFF_CHUNK *chunk;
-
- char signature[8];
-
- if (dumbfile_getnc(signature, 8, f) < 8 ||
- memcmp(signature, "OKTASONG", 8)) {- return NULL;
- }
-
- mod = dumbfile_read_okt(f);
- if (!mod)
- return NULL;
-
- sigdata = (DUMB_IT_SIGDATA *) malloc(sizeof(*sigdata));
- if (!sigdata) {- free_okt(mod);
- return NULL;
- }
-
- sigdata->name[0] = 0;
-
- chunk = get_chunk_by_type(mod, DUMB_ID('S','P','E','E'), 0);- if (!chunk || chunk->size < 2) {- free(sigdata);
- free_okt(mod);
- return NULL;
- }
-
- sigdata->speed = (chunk->data[0] << 8) | chunk->data[1];
-
- chunk = get_chunk_by_type(mod, DUMB_ID('S','A','M','P'), 0);- if (!chunk || chunk->size < 32) {- free(sigdata);
- free_okt(mod);
- return NULL;
- }
-
- sigdata->n_samples = chunk->size / 32;
-
- chunk = get_chunk_by_type(mod, DUMB_ID('C','M','O','D'), 0);- if (!chunk || chunk->size < 8) {- free(sigdata);
- free_okt(mod);
- return NULL;
- }
-
- n_channels = 0;
-
- for (i = 0; i < 4; i++) {- j = (chunk->data[i * 2] << 8) | chunk->data[i * 2 + 1];
- if (!j) n_channels++;
- else if (j == 1) n_channels += 2;
- }
-
- if (!n_channels) {- free(sigdata);
- free_okt(mod);
- return NULL;
- }
-
- sigdata->n_pchannels = n_channels;
-
- sigdata->sample = (IT_SAMPLE *) malloc(sigdata->n_samples * sizeof(*sigdata->sample));
- if (!sigdata->sample) {- free(sigdata);
- free_okt(mod);
- return NULL;
- }
-
- sigdata->song_message = NULL;
- sigdata->order = NULL;
- sigdata->instrument = NULL;
- sigdata->pattern = NULL;
- sigdata->midi = NULL;
- sigdata->checkpoint = NULL;
-
- sigdata->n_instruments = 0;
-
- for (i = 0; i < sigdata->n_samples; i++)
- sigdata->sample[i].data = NULL;
-
- chunk = get_chunk_by_type(mod, DUMB_ID('S','A','M','P'), 0);-
- for (i = 0; i < sigdata->n_samples; i++) {- it_okt_read_sample_header(&sigdata->sample[i], chunk->data + 32 * i);
- }
-
- sigdata->restart_position = 0;
-
- chunk = get_chunk_by_type(mod, DUMB_ID('P','L','E','N'), 0);- if (!chunk || chunk->size < 2) {- _dumb_it_unload_sigdata(sigdata);
- free_okt(mod);
- return NULL;
- }
-
- sigdata->n_orders = (chunk->data[0] << 8) | chunk->data[1];
- // what if this is > 128?
-
- if (sigdata->n_orders <= 0 || sigdata->n_orders > 128) {- _dumb_it_unload_sigdata(sigdata);
- free_okt(mod);
- return NULL;
- }
-
- chunk = get_chunk_by_type(mod, DUMB_ID('P','A','T','T'), 0);- if (!chunk || chunk->size < (unsigned)sigdata->n_orders) {- _dumb_it_unload_sigdata(sigdata);
- free_okt(mod);
- return NULL;
- }
-
- sigdata->order = (unsigned char *) malloc(sigdata->n_orders);
- if (!sigdata->order) {- _dumb_it_unload_sigdata(sigdata);
- free_okt(mod);
- return NULL;
- }
-
- memcpy(sigdata->order, chunk->data, sigdata->n_orders);
-
- /* Work out how many patterns there are. */
- chunk = get_chunk_by_type(mod, DUMB_ID('S','L','E','N'), 0);- if (!chunk || chunk->size < 2) {- _dumb_it_unload_sigdata(sigdata);
- free_okt(mod);
- return NULL;
- }
-
- sigdata->n_patterns = (chunk->data[0] << 8) | chunk->data[1];
-
- j = get_chunk_count(mod, DUMB_ID('P','B','O','D'));- if (sigdata->n_patterns > j) sigdata->n_patterns = j;
-
- if (!sigdata->n_patterns) {- _dumb_it_unload_sigdata(sigdata);
- free_okt(mod);
- return NULL;
- }
-
- sigdata->pattern = (IT_PATTERN *) malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
- if (!sigdata->pattern) {- _dumb_it_unload_sigdata(sigdata);
- free_okt(mod);
- return NULL;
- }
- for (i = 0; i < sigdata->n_patterns; i++)
- sigdata->pattern[i].entry = NULL;
-
- /* Read in the patterns */
- for (i = 0; i < sigdata->n_patterns; i++) {- chunk = get_chunk_by_type(mod, DUMB_ID('P','B','O','D'), i);- if (it_okt_read_pattern(&sigdata->pattern[i], chunk->data, chunk->size, n_channels) != 0) {- _dumb_it_unload_sigdata(sigdata);
- free_okt(mod);
- return NULL;
- }
- }
-
- /* And finally, the sample data */
- k = get_chunk_count(mod, DUMB_ID('S','B','O','D'));- for (i = 0, j = 0; i < sigdata->n_samples && j < k; i++) {- if (sigdata->sample[i].flags & IT_SAMPLE_EXISTS) {- chunk = get_chunk_by_type(mod, DUMB_ID('S','B','O','D'), j);- if (it_okt_read_sample_data(&sigdata->sample[i], (const char *)chunk->data, chunk->size)) {- _dumb_it_unload_sigdata(sigdata);
- free_okt(mod);
- return NULL;
- }
- j++;
- }
- }
- for (; i < sigdata->n_samples; i++) {- sigdata->sample[i].flags = 0;
- }
-
- chunk = get_chunk_by_type(mod, DUMB_ID('C','M','O','D'), 0);-
- for (i = 0, j = 0; i < n_channels && j < 4; j++) {- k = (chunk->data[j * 2] << 8) | chunk->data[j * 2 + 1];
- l = (j == 1 || j == 2) ? 48 : 16;
- if (k == 0) {- sigdata->channel_pan[i++] = l;
- }
- else if (k == 1) {- sigdata->channel_pan[i++] = l;
- sigdata->channel_pan[i++] = l;
- }
- }
-
- free_okt(mod);
-
- /* Now let's initialise the remaining variables, and we're done! */
- sigdata->flags = IT_WAS_AN_OKT | IT_WAS_AN_XM | IT_WAS_A_MOD | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_STEREO;
-
- sigdata->global_volume = 128;
- sigdata->mixing_volume = 48;
- /* We want 50 ticks per second; 50/6 row advances per second;
- * 50*10=500 row advances per minute; 500/4=125 beats per minute.
- */
- sigdata->tempo = 125;
- sigdata->pan_separation = 128;
-
- memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
- memset(sigdata->channel_pan + n_channels, 32, DUMB_IT_N_CHANNELS - n_channels);
-
- _dumb_it_fix_invalid_orders(sigdata);
-
- return sigdata;
-}
-
-
-
-DUH *dumb_read_okt_quick(DUMBFILE *f)
-{- sigdata_t *sigdata;
-
- DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
-
- sigdata = it_okt_load_sigdata(f);
-
- if (!sigdata)
- return NULL;
-
- {- const char *tag[1][2];
- tag[0][0] = "FORMAT";
- tag[0][1] = "Oktalyzer";
- return make_duh(-1, 1, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
- }
-}
--- a/dumb/src/it/readokt2.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readokt2.c - Function to read an Oktalyzer / / \ \
- * module from an open file and do | < / \_
- * an initial run-through. | \/ /\ /
- * \_ / > /
- * | \ / /
- * By Chris Moeller. | ' /
- * \__/
- */
-
-#include "dumb.h"
-
-
-
-DUH *dumb_read_okt(DUMBFILE *f)
-{- DUH *duh = dumb_read_okt_quick(f);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/readoldpsm.c
+++ /dev/null
@@ -1,689 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readpsm.c - Code to read an old Protracker / / \ \
- * Studio module from an open file. | < / \_
- * | \/ /\ /
- * By Chris Moeller. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-
-static int psm_sample_compare(const void *e1, const void *e2)
-{- const unsigned char * pa = e1;
- const unsigned char * pb = e2;
- int a = pa[37] | (pa[38] << 8) | (pa[39] << 16) | (pa[40] << 24);
- int b = pb[37] | (pb[38] << 8) | (pb[39] << 16) | (pb[40] << 24);
- return a - b;
-}
-
-static int it_old_psm_read_samples(IT_SAMPLE ** sample, DUMBFILE * f, int * num)
-{- int n, o, count = *num, true_num, snum, offset, flags, finetune, delta;
-
- unsigned char * buffer;
- const unsigned char * sdata;
- long sample_bytes;
-
- buffer = malloc(count * 64);
- if (!buffer) goto error;
-
- if (dumbfile_getnc((char *)buffer, count * 64, f) < count * 64) goto error_fb;
-
- true_num = 0;
-
- for (n = 0; n < count; n++) {- snum = buffer[(n * 64) + 45] | (buffer[(n * 64) + 46] << 8);
- if ((snum < 1) || (snum > 255)) goto error_fb;
- if (true_num < snum) true_num = snum;
- }
-
- if (true_num > count) {- IT_SAMPLE * meh = realloc(*sample, true_num * sizeof(*meh));
- if (!meh) goto error_fb;
- for (n = count; n < true_num; n++) {- meh[n].data = NULL;
- }
- *sample = meh;
- *num = true_num;
- }
-
- qsort(buffer, count, 64, &psm_sample_compare);
-
- for (n = 0; n < true_num; n++) {- (*sample)[n].flags = 0;
- }
-
- for (n = 0; n < count; n++) {- IT_SAMPLE * s;
- snum = buffer[(n * 64) + 45] | (buffer[(n * 64) + 46] << 8);
- s = &((*sample)[snum - 1]);
- memcpy(s->filename, buffer + (n * 64), 13);
- s->filename[13] = 0;
- memcpy(s->name, buffer + (n * 64) + 13, 24);
- s->name[24] = 0;
- offset = buffer[(n * 64) + 37] | (buffer[(n * 64) + 38] << 8) |
- (buffer[(n * 64) + 39] << 16) | (buffer[(n * 64) + 40] << 24);
- flags = buffer[(n * 64) + 47];
- s->length = buffer[(n * 64) + 48] | (buffer[(n * 64) + 49] << 8) |
- (buffer[(n * 64) + 50] << 16) | (buffer[(n * 64) + 51] << 24);
- s->loop_start = buffer[(n * 64) + 52] | (buffer[(n * 64) + 53] << 8) |
- (buffer[(n * 64) + 54] << 16) | (buffer[(n * 64) + 55] << 24);
- s->loop_end = buffer[(n * 64) + 56] | (buffer[(n * 64) + 57] << 8) |
- (buffer[(n * 64) + 58] << 16) | (buffer[(n * 64) + 59] << 24);
-
- if (s->length <= 0) continue;
-
- finetune = buffer[(n * 64) + 60];
- s->default_volume = buffer[(n * 64) + 61];
- s->C5_speed = buffer[(n * 64) + 62] | (buffer[(n * 64) + 63] << 8);
- if (finetune & 15) {- finetune &= 15;
- if (finetune >= 8) finetune -= 16;
- //s->C5_speed = (long)((double)s->C5_speed * pow(DUMB_PITCH_BASE, finetune*32));
- s->finetune = finetune * 32;
- }
- else s->finetune = 0;
-
- s->flags |= IT_SAMPLE_EXISTS;
- if (flags & 0x41) {- s->flags &= ~IT_SAMPLE_EXISTS;
- continue;
- }
- if (flags & 0x20) s->flags |= IT_SAMPLE_PINGPONG_LOOP;
- if (flags & 4) s->flags |= IT_SAMPLE_16BIT;
-
- if (flags & 0x80) {- s->flags |= IT_SAMPLE_LOOP;
- if ((unsigned int)s->loop_end > (unsigned int)s->length)
- s->loop_end = s->length;
- else if ((unsigned int)s->loop_start >= (unsigned int)s->loop_end)
- s->flags &= ~IT_SAMPLE_LOOP;
- else
- s->length = s->loop_end;
- }
-
- s->global_volume = 64;
-
- s->vibrato_speed = 0;
- s->vibrato_depth = 0;
- s->vibrato_rate = 0;
- s->vibrato_waveform = IT_VIBRATO_SINE;
- s->max_resampling_quality = -1;
-
- sample_bytes = s->length * ((flags & 4) ? 2 : 1);
- s->data = malloc(sample_bytes);
- if (!s->data) goto error_fb;
-
- if (dumbfile_seek(f, offset, DFS_SEEK_SET) || dumbfile_getnc(s->data, sample_bytes, f) < sample_bytes) goto error_fb;
- sdata = ( const unsigned char * ) s->data;
-
- if (flags & 0x10) {- if (flags & 8) {- if (flags & 4) {- for (o = 0; o < s->length; o++)
- ((short *)s->data)[o] = (sdata[o * 2] | (sdata[(o * 2) + 1] << 8)) ^ 0x8000;
- } else {- for (o = 0; o < s->length; o++)
- ((signed char *)s->data)[o] = sdata[o] ^ 0x80;
- }
- } else {- if (flags & 4) {- for (o = 0; o < s->length; o++)
- ((short *)s->data)[o] = sdata[o * 2] | (sdata[(o * 2) + 1] << 8);
- } else {- memcpy(s->data, sdata, s->length);
- }
- }
- } else {- delta = 0;
- if (flags & 8) {- /* unsigned delta? mehhh, does anything even use this? */
- if (flags & 4) {- for (o = 0; o < s->length; o++) {- delta += (short)(sdata[o * 2] | (sdata[(o * 2) + 1] << 8));
- ((short *)s->data)[o] = delta ^ 0x8000;
- }
- } else {- for (o = 0; o < s->length; o++) {- delta += (signed char)sdata[o];
- ((signed char *)s->data)[o] = delta ^ 0x80;
- }
- }
- } else {- if (flags & 4) {- for (o = 0; o < s->length; o++) {- delta += (signed short)(sdata[o * 2] | (sdata[(o * 2) + 1] << 8));
- ((signed short *)s->data)[o] = delta;
- }
- } else {- for (o = 0; o < s->length; o++) {- delta += (signed char)sdata[o];
- ((signed char *)s->data)[o] = delta;
- }
- }
- }
- }
- }
-
- free(buffer);
-
- return 0;
-
-error_fb:
- free(buffer);
-error:
- return -1;
-}
-
-static int it_old_psm_read_patterns(IT_PATTERN * pattern, DUMBFILE * f, int num, int size, int pchans)
-{- int n, offset, psize, rows, chans, row, flags, channel;
-
- unsigned char * buffer, * ptr, * end;
-
- IT_ENTRY * entry;
-
- buffer = malloc(size);
- if (!buffer) goto error;
-
- if (dumbfile_getnc((char *)buffer, size, f) < size) goto error_fb;
-
- offset = 0;
-
- for (n = 0; n < num; n++) {- IT_PATTERN * p = &pattern[n];
-
- if (offset >= size) goto error_fb;
-
- ptr = buffer + offset;
- psize = ptr[0] | (ptr[1] << 8);
- rows = ptr[2];
- chans = ptr[3];
-
- if (!rows || !chans) {- p->n_rows = 1;
- p->n_entries = 0;
- continue;
- }
-
- psize = (psize + 15) & ~15;
-
- end = ptr + psize;
- ptr += 4;
-
- p->n_rows = rows;
- p->n_entries = rows;
- row = 0;
-
- while ((row < rows) && (ptr < end)) {- flags = *ptr++;
- if (!flags) {- row++;
- continue;
- }
- if (flags & 0xE0) {- p->n_entries++;
- if (flags & 0x80) ptr += 2;
- if (flags & 0x40) ptr++;
- if (flags & 0x20) {- ptr++;
- if (*ptr == 40) ptr += 3;
- else ptr++;
- }
- }
- }
-
- entry = malloc(p->n_entries * sizeof(*p->entry));
- if (!entry) goto error_fb;
-
- p->entry = entry;
-
- ptr = buffer + offset + 4;
- row = 0;
-
- while ((row < rows) && (ptr < end)) {- flags = *ptr++;
- if (!flags) {- IT_SET_END_ROW(entry);
- entry++;
- row++;
- continue;
- }
- if (flags & 0xE0) {- entry->mask = 0;
- entry->channel = channel = flags & 0x1F;
- if (channel >= chans)
- {- //channel = 0;
- //goto error_fb;
- }
- if (flags & 0x80) {- if ((*ptr < 60) && (channel < pchans)) {- entry->mask |= IT_ENTRY_NOTE;
- entry->note = *ptr + 35;
- }
- ptr++;
- if (*ptr) {- entry->mask |= IT_ENTRY_INSTRUMENT;
- entry->instrument = *ptr;
- }
- ptr++;
- }
- if (flags & 0x40) {- if (*ptr <= 64) {- entry->mask |= IT_ENTRY_VOLPAN;
- entry->volpan = *ptr;
- }
- ptr++;
- }
- if (flags & 0x20) {- entry->mask |= IT_ENTRY_EFFECT;
-
- switch (*ptr) {- case 1:
- entry->effect = IT_XM_FINE_VOLSLIDE_UP;
- entry->effectvalue = ptr[1];
- break;
-
- case 2:
- entry->effect = IT_VOLUME_SLIDE;
- entry->effectvalue = (ptr[1] << 4) & 0xF0;
- break;
-
- case 3:
- entry->effect = IT_XM_FINE_VOLSLIDE_DOWN;
- entry->effectvalue = ptr[1];
- break;
-
- case 4:
- entry->effect = IT_VOLUME_SLIDE;
- entry->effectvalue = ptr[1] & 0xF;
- break;
-
- case 10:
- entry->effect = IT_PORTAMENTO_UP;
- entry->effectvalue = EFFECT_VALUE(0xF, ptr[1]);
- break;
-
- case 11:
- entry->effect = IT_PORTAMENTO_UP;
- entry->effectvalue = ptr[1];
- break;
-
- case 12:
- entry->effect = IT_PORTAMENTO_DOWN;
- entry->effectvalue = EFFECT_VALUE(ptr[1], 0xF);
- break;
-
- case 13:
- entry->effect = IT_PORTAMENTO_DOWN;
- entry->effectvalue = ptr[1];
- break;
-
- case 14:
- entry->effect = IT_TONE_PORTAMENTO;
- entry->effectvalue = ptr[1];
- break;
-
- case 15:
- entry->effect = IT_S;
- entry->effectvalue = EFFECT_VALUE(IT_S_SET_GLISSANDO_CONTROL, ptr[1] & 15);
- break;
-
- case 16:
- entry->effect = IT_VOLSLIDE_TONEPORTA;
- entry->effectvalue = ptr[1] << 4;
- break;
-
- case 17:
- entry->effect = IT_VOLSLIDE_TONEPORTA;
- entry->effectvalue = ptr[1] & 0xF;
- break;
-
- case 20:
- entry->effect = IT_VIBRATO;
- entry->effectvalue = ptr[1];
- break;
-
- case 21:
- entry->effect = IT_S;
- entry->effectvalue = EFFECT_VALUE(IT_S_SET_VIBRATO_WAVEFORM, ptr[1] & 11);
- break;
-
- case 22:
- entry->effect = IT_VOLSLIDE_VIBRATO;
- entry->effectvalue = ptr[1] << 4;
- break;
-
- case 23:
- entry->effect = IT_VOLSLIDE_VIBRATO;
- entry->effectvalue = ptr[1] & 0xF;
- break;
-
- case 30:
- entry->effect = IT_TREMOLO;
- entry->effectvalue = ptr[1];
- break;
-
- case 31:
- entry->effect = IT_S;
- entry->effectvalue = EFFECT_VALUE(IT_S_SET_TREMOLO_WAVEFORM, ptr[1] & 11);
- break;
-
- case 40:
- entry->effect = IT_SET_SAMPLE_OFFSET;
- entry->effectvalue = ptr[2];
- ptr += 2;
- break;
-
- case 41:
- entry->effect = IT_XM_RETRIGGER_NOTE;
- entry->effectvalue = ptr[1];
- break;
-
- case 42:
- entry->effect = IT_S;
- entry->effectvalue = EFFECT_VALUE(IT_S_DELAYED_NOTE_CUT, ptr[1] & 0xF);
- break;
-
- case 43:
- entry->effect = IT_S;
- entry->effectvalue = EFFECT_VALUE(IT_S_NOTE_DELAY, ptr[1] & 0xF);
- break;
-
- case 50:
- entry->effect = IT_JUMP_TO_ORDER;
- entry->effectvalue = ptr[1];
- break;
-
- case 51:
- entry->effect = IT_BREAK_TO_ROW;
- entry->effectvalue = ptr[1];
- break;
-
- case 52:
- entry->effect = IT_S;
- entry->effectvalue = EFFECT_VALUE(IT_S_PATTERN_LOOP, ptr[1] & 0xF);
- break;
-
- case 53:
- entry->effect = IT_S;
- entry->effectvalue = EFFECT_VALUE(IT_S_PATTERN_DELAY, ptr[1] & 0xF);
- break;
-
- case 60:
- entry->effect = IT_SET_SPEED;
- entry->effectvalue = ptr[1];
- break;
-
- case 61:
- entry->effect = IT_SET_SONG_TEMPO;
- entry->effectvalue = ptr[1];
- break;
-
- case 70:
- entry->effect = IT_ARPEGGIO;
- entry->effectvalue = ptr[1];
- break;
-
- case 71:
- entry->effect = IT_S;
- entry->effectvalue = EFFECT_VALUE(IT_S_FINETUNE, ptr[1] & 0xF);
- break;
-
- case 72:
- /* "balance" ... panning? */
- entry->effect = IT_SET_PANNING;
- entry->effectvalue = ((ptr[1] - ((ptr[1] & 8) >> 3)) << 5) / 7;
- break;
-
- default:
- entry->mask &= ~IT_ENTRY_EFFECT;
- }
-
- ptr += 2;
- }
- if (entry->mask) entry++;
- }
- }
-
- p->n_entries = (int)(entry - p->entry);
- offset += psize;
- }
-
- free(buffer);
-
- return 0;
-
-error_fb:
- free(buffer);
-error:
- return -1;
-}
-
-#define PSM_COMPONENT_ORDERS 0
-#define PSM_COMPONENT_PANPOS 1
-#define PSM_COMPONENT_PATTERNS 2
-#define PSM_COMPONENT_SAMPLE_HEADERS 3
-#define PSM_COMPONENT_COMMENTS 4
-
-typedef struct PSM_COMPONENT
-{- unsigned char type;
- long offset;
-}
-PSM_COMPONENT;
-
-static int psm_component_compare(const void *e1, const void *e2)
-{- return (int)(((const PSM_COMPONENT *)e1)->offset -
- ((const PSM_COMPONENT *)e2)->offset);
-}
-
-static DUMB_IT_SIGDATA *it_old_psm_load_sigdata(DUMBFILE *f)
-{- DUMB_IT_SIGDATA *sigdata;
-
- PSM_COMPONENT *component;
- int n_components = 0;
-
- int n, flags, version, pver, n_orders, n_channels, total_pattern_size;
-
- if (dumbfile_mgetl(f) != DUMB_ID('P','S','M',254)) goto error;-
- sigdata = malloc(sizeof(*sigdata));
- if (!sigdata) goto error;
-
- if (dumbfile_getnc((char *)sigdata->name, 60, f) < 60 ||
- sigdata->name[59] != 0x1A) goto error_sd;
- sigdata->name[59] = 0;
-
- flags = dumbfile_getc(f);
- version = dumbfile_getc(f);
- pver = dumbfile_getc(f);
- sigdata->speed = dumbfile_getc(f);
- sigdata->tempo = dumbfile_getc(f);
- sigdata->mixing_volume = dumbfile_getc(f);
- sigdata->n_orders = dumbfile_igetw(f);
- n_orders = dumbfile_igetw(f);
- sigdata->n_patterns = dumbfile_igetw(f);
- sigdata->n_samples = dumbfile_igetw(f);
- sigdata->n_pchannels = dumbfile_igetw(f);
- n_channels = dumbfile_igetw(f);
-
- if (dumbfile_error(f) ||
- (flags & 1) ||
- (version != 1 && version != 0x10) ||
- (pver) ||
- (sigdata->n_orders <= 0) ||
- (sigdata->n_orders > 255) ||
- (n_orders > 255) ||
- (n_orders < sigdata->n_orders) ||
- (sigdata->n_patterns > 255) ||
- (sigdata->n_samples > 255) ||
- (sigdata->n_pchannels > DUMB_IT_N_CHANNELS) ||
- (sigdata->n_pchannels > n_channels) ||
- (n_channels > DUMB_IT_N_CHANNELS))
- goto error_sd;
-
- sigdata->flags = IT_STEREO | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX;
-
- sigdata->global_volume = 128;
- sigdata->pan_separation = 128;
-
- sigdata->song_message = NULL;
- sigdata->order = NULL;
- sigdata->instrument = NULL;
- sigdata->sample = NULL;
- sigdata->pattern = NULL;
- sigdata->midi = NULL;
- sigdata->checkpoint = NULL;
-
- sigdata->n_instruments = 0;
-
- sigdata->restart_position = 0;
-
- sigdata->order = malloc(sigdata->n_orders);
- if (!sigdata->order) goto error_usd;
-
- if (sigdata->n_samples) {- sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
- if (!sigdata->sample) goto error_usd;
- for (n = 0; n < sigdata->n_samples; n++)
- sigdata->sample[n].data = NULL;
- }
-
- if (sigdata->n_patterns) {- sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
- if (!sigdata->pattern) goto error_usd;
- for (n = 0; n < sigdata->n_patterns; n++)
- sigdata->pattern[n].entry = NULL;
- }
-
- component = malloc(5 * sizeof(*component));
- if (!component) goto error_usd;
-
- for (n = 0; n < 5; n++) {- component[n_components].offset = dumbfile_igetl(f);
- if (component[n_components].offset) {- component[n_components].type = n;
- n_components++;
- }
- }
-
- if (!n_components) goto error_fc;
-
- total_pattern_size = (int)dumbfile_igetl(f);
- if (!total_pattern_size) goto error_fc;
-
- qsort(component, n_components, sizeof(PSM_COMPONENT), &psm_component_compare);
-
- memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
-
- for (n = 0; n < DUMB_IT_N_CHANNELS; n += 4) {- int sep = 32 * dumb_it_default_panning_separation / 100;
- sigdata->channel_pan[n ] = 32 - sep;
- sigdata->channel_pan[n+1] = 32 + sep;
- sigdata->channel_pan[n+2] = 32 + sep;
- sigdata->channel_pan[n+3] = 32 - sep;
- }
-
- for (n = 0; n < n_components; n++)
- {- int o;
-
- if ( dumbfile_seek(f, component[n].offset, DFS_SEEK_SET) ) goto error_fc;
-
- switch (component[n].type) {-
- case PSM_COMPONENT_ORDERS:
- if (dumbfile_getnc((char *)sigdata->order, sigdata->n_orders, f) < sigdata->n_orders) goto error_fc;
- if (n_orders > sigdata->n_orders)
- if (dumbfile_skip(f, n_orders - sigdata->n_orders))
- goto error_fc;
- if (dumbfile_igetw(f)) goto error_fc;
- break;
-
- case PSM_COMPONENT_PANPOS:
- if (dumbfile_getnc((char *)sigdata->channel_pan, sigdata->n_pchannels, f) < sigdata->n_pchannels) goto error_fc;
- for (o = 0; o < sigdata->n_pchannels; o++) {- sigdata->channel_pan[o] -= (sigdata->channel_pan[o] & 8) >> 3;
- sigdata->channel_pan[o] = ((int)sigdata->channel_pan[o] << 5) / 7;
- }
- break;
-
- case PSM_COMPONENT_PATTERNS:
- if (it_old_psm_read_patterns(sigdata->pattern, f, sigdata->n_patterns, total_pattern_size, sigdata->n_pchannels)) goto error_fc;
- break;
-
- case PSM_COMPONENT_SAMPLE_HEADERS:
- if (it_old_psm_read_samples(&sigdata->sample, f, &sigdata->n_samples)) goto error_fc;
- break;
-
- case PSM_COMPONENT_COMMENTS:
- if (dumbfile_mgetl(f) == DUMB_ID('T','E','X','T')) {- o = dumbfile_igetw(f);
- if (o > 0) {- sigdata->song_message = malloc(o + 1);
- if (dumbfile_getnc((char *)sigdata->song_message, o, f) < o) goto error_fc;
- sigdata->song_message[o] = 0;
- }
- }
- break;
- }
- }
-
- _dumb_it_fix_invalid_orders(sigdata);
-
- free(component);
-
- return sigdata;
-
-error_fc:
- free(component);
-error_usd:
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
-error_sd:
- free(sigdata);
-error:
- return NULL;
-}
-
-DUH *dumb_read_old_psm_quick(DUMBFILE *f)
-{- sigdata_t *sigdata;
-
- DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
-
- sigdata = it_old_psm_load_sigdata(f);
-
- if (!sigdata)
- return NULL;
-
- {- const char *tag[2][2];
- tag[0][0] = "TITLE";
- tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
- tag[1][0] = "FORMAT";
- tag[1][1] = "PSM (old)";
- return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
- }
-}
--- a/dumb/src/it/readpsm.c
+++ /dev/null
@@ -1,1289 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readpsm.c - Code to read a Protracker Studio / / \ \
- * module from an open file. | < / \_
- * | \/ /\ /
- * By Chris Moeller. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-
-#ifndef min
-#define min(a, b) (((a) < (b)) ? (a) : (b))
-#endif
-
-#ifdef _MSC_VER
-#define snprintf sprintf_s
-#endif
-
-#define PSMV_OLD 940730
-#define PSMV_NEW 940902
-
-typedef struct _PSMCHUNK
-{- int id;
- int len;
- unsigned char * data;
-} PSMCHUNK;
-
-typedef struct _PSMEVENT
-{- int type;
- unsigned char data[8];
-} PSMEVENT;
-
-#define PSM_EVENT_END 0
-#define PSM_EVENT_PLAY_PATTERN 1
-#define PSM_EVENT_JUMP_TO_LINE 4
-#define PSM_EVENT_SET_SPEED 7
-#define PSM_EVENT_SET_BPM 8
-#define PSM_EVENT_SAMPLE_MAP_TABLE 12
-#define PSM_EVENT_CHANGE_PAN 13
-#define PSM_EVENT_CHANGE_VOL 14
-
-static int it_psm_process_sample(IT_SAMPLE * sample, const unsigned char * data, int len, int id, int version) {- int flags;
- int insno;
- int length;
- int loopstart;
- int loopend;
- int panpos;
- int defvol;
- int samplerate;
-
- if (len < 0x60) return -1;
-
- flags = data[0];
-
- if (version == PSMV_OLD) {- memcpy(sample->name, data + 0x0D, 34);
- sample->name[34] = 0;
-
- insno = data[0x34] | (data[0x35] << 8);
- length = data[0x36] | (data[0x37] << 8) | (data[0x38] << 16) | (data[0x39] << 24);
- loopstart = data[0x3A] | (data[0x3B] << 8) | (data[0x3C] << 16) | (data[0x3D] << 24);
- loopend = data[0x3E] | (data[0x3F] << 8) | (data[0x40] << 16) | (data[0x41] << 24);
- panpos = data[0x43];
- defvol = data[0x44];
- samplerate = data[0x49] | (data[0x4A] << 8) | (data[0x4B] << 16) | (data[0x4C] << 24);
- } else /*if (version == PSMV_NEW)*/ {- memcpy(sample->name, data + 0x11, 34);
- sample->name[34] = 0;
-
- insno = data[0x38] | (data[0x39] << 8);
- length = data[0x3A] | (data[0x3B] << 8) | (data[0x3C] << 16) | (data[0x3D] << 24);
- loopstart = data[0x3E] | (data[0x3F] << 8) | (data[0x40] << 16) | (data[0x41] << 24);
- loopend = data[0x42] | (data[0x43] << 8) | (data[0x44] << 16) | (data[0x45] << 24);
- panpos = data[0x48];
- defvol = data[0x49];
- samplerate = data[0x4E] | (data[0x4F] << 8) | (data[0x50] << 16) | (data[0x51] << 24);
- }
-
- if (insno != id) return -1;
-
- if (!length) {- sample->flags &= ~IT_SAMPLE_EXISTS;
- return 0;
- }
-
- if ((length > len - 0x60) || ((flags & 0x7F) != 0)) return -1;
-
- sample->flags = IT_SAMPLE_EXISTS;
- sample->length = length;
- sample->loop_start = loopstart;
- sample->loop_end = loopend;
- sample->C5_speed = samplerate;
- sample->default_volume = defvol >> 1;
- sample->default_pan = 0;
- sample->filename[0] = 0;
- sample->global_volume = 64;
- sample->vibrato_speed = 0;
- sample->vibrato_depth = 0;
- sample->vibrato_rate = 0;
- sample->vibrato_waveform = IT_VIBRATO_SINE;
- sample->finetune = 0;
- sample->max_resampling_quality = -1;
-
- if (flags & 0x80) {- if (((unsigned int)sample->loop_end <= (unsigned int)sample->length) &&
- ((unsigned int)sample->loop_start < (unsigned int)sample->loop_end)) {- sample->length = sample->loop_end;
- sample->flags |= IT_SAMPLE_LOOP;
- }
- }
-
- sample->data = malloc(sample->length);
- if (!sample->data)
- return -1;
-
- flags = 0;
- data += 0x60;
-
- for (insno = 0; insno < sample->length; insno++) {- flags += (signed char)(*data++);
- ((signed char *)sample->data)[insno] = flags;
- }
-
- return 0;
-}
-
-static int it_psm_process_pattern(IT_PATTERN * pattern, const unsigned char * data, int len, int speed, int bpm, const unsigned char * pan, const int * vol, int version) {- int length, nrows, row, rowlen, pos;
- unsigned flags, chan;
- IT_ENTRY * entry;
-
- length = data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24);
- if (len > length) len = length;
-
- if (version == PSMV_OLD) {- if (len < 10) return -1;
- data += 8;
- len -= 8;
- } else /*if (version == PSMV_NEW)*/ {- if (len < 14) return -1;
- data += 12;
- len -= 12;
- }
-
- nrows = data[0] | (data[1] << 8);
-
- if (!nrows) return 0;
-
- pattern->n_rows = nrows;
-
- data += 2;
- len -= 2;
-
- pattern->n_entries = 0;
-
- row = 0;
- pos = 2;
- rowlen = data[0] | (data[1] << 8);
-
- while ((row < nrows) && (pos < len)) {- if (pos >= rowlen) {- row++;
- rowlen += data[pos] | (data[pos+1] << 8);
- pos += 2;
- continue;
- }
-
- flags = data[pos++];
- chan = data[pos++];
-
- if (chan > 63) return -1;
-
- if (flags & 0xF0) {- pattern->n_entries++;
- if (flags & 0x80) pos++;
- if (flags & 0x40) pos++;
- if (flags & 0x20) pos++;
- if (flags & 0x10) {- switch (data[pos]) {- case 0x29:
- pos++;
- case 0x33:
- pos++;
- default:
- pos += 2;
- }
- }
- }
- }
-
- if (!pattern->n_entries) return 0;
-
- pattern->n_entries += nrows;
- if (speed) pattern->n_entries++;
- if (bpm >= 0x20) pattern->n_entries++;
-
- for (pos = 0; pos < 32; pos++) {- if (!(pan[pos*2+1] & 0xF9)) pattern->n_entries++;
- if (vol[pos] != -1) pattern->n_entries++;
- }
-
- pattern->entry = malloc(pattern->n_entries * sizeof(*pattern->entry));
- if (!pattern->entry) return -1;
-
- entry = pattern->entry;
-
- if (speed) {- entry->channel = 0;
- entry->mask = IT_ENTRY_EFFECT;
- entry->effect = IT_SET_SPEED;
- entry->effectvalue = speed;
- entry++;
- }
-
- if (bpm >= 0x20) {- entry->channel = 0;
- entry->mask = IT_ENTRY_EFFECT;
- entry->effect = IT_SET_SONG_TEMPO;
- entry->effectvalue = bpm;
- entry++;
- }
-
- for (pos = 0; pos < 32; pos++) {- if (!(pan[pos*2+1] & 0xF9)) {- entry->channel = pos;
- entry->mask = IT_ENTRY_EFFECT;
- switch (pan[pos*2+1]) {- case 0:
- entry->effect = IT_SET_PANNING;
- entry->effectvalue = pan[pos*2] ^ 128;
- break;
- case 2:
- entry->effect = IT_S;
- entry->effectvalue = EFFECT_VALUE(IT_S_SET_SURROUND_SOUND,1);
- break;
- case 4:
- entry->effect = IT_SET_PANNING;
- entry->effectvalue = 128;
- break;
- }
- entry++;
- }
- if (vol[pos] != -1) {- entry->channel = pos;
- entry->mask = IT_ENTRY_EFFECT;
- entry->effect = IT_SET_CHANNEL_VOLUME;
- entry->effectvalue = (vol[pos] + 2) >> 2;
- entry++;
- }
- }
-
- row = 0;
- pos = 2;
- rowlen = data[0] | (data[1] << 8);
-
- while ((row < nrows) && (pos < len)) {- if (pos >= rowlen) {- IT_SET_END_ROW(entry);
- entry++;
- row++;
- rowlen += data[pos] | (data[pos+1] << 8);
- pos += 2;
- continue;
- }
-
- flags = data[pos++];
- entry->channel = data[pos++];
- entry->mask = 0;
-
- if (flags & 0xF0) {- if (flags & 0x80) {- entry->mask |= IT_ENTRY_NOTE;
- if (version == PSMV_OLD) {- if ((data[pos] < 0x80)) entry->note = (data[pos]>>4)*12+(data[pos]&0x0f)+12;
- else entry->mask &= ~IT_ENTRY_NOTE;
- } else /*if (version == PSMV_NEW)*/ {- if ((data[pos]) && (data[pos] < 84)) entry->note = data[pos] + 35;
- else entry->mask &= ~IT_ENTRY_NOTE;
- }
- pos++;
- }
-
- if (flags & 0x40) {- entry->mask |= IT_ENTRY_INSTRUMENT;
- entry->instrument = data[pos++] + 1;
- }
-
- if (flags & 0x20) {- entry->mask |= IT_ENTRY_VOLPAN;
- entry->volpan = (data[pos++] + 1) >> 1;
- }
-
- if (flags & 0x10) {- entry->mask |= IT_ENTRY_EFFECT;
- length = data[pos+1];
- switch (data[pos]) {- case 1:
- entry->effect = IT_VOLUME_SLIDE;
- if (version == PSMV_OLD) entry->effectvalue = ((length&0x1e)<<3) | 0xF;
- else /*if (version == PSMV_NEW)*/ entry->effectvalue = (length<<4) | 0xF;
- break;
-
- case 2:
- entry->effect = IT_VOLUME_SLIDE;
- if (version == PSMV_OLD) entry->effectvalue = (length << 3) & 0xF0;
- else /*if (version == PSMV_NEW)*/ entry->effectvalue = (length << 4) & 0xF0;
- break;
-
- case 3:
- entry->effect = IT_VOLUME_SLIDE;
- if (version == PSMV_OLD) entry->effectvalue = (length >> 1) | 0xF0;
- else /*if (version == PSMV_NEW)*/ entry->effectvalue = length | 0xF0;
- break;
-
- case 4:
- entry->effect = IT_VOLUME_SLIDE;
- if (version == PSMV_OLD) entry->effectvalue = (length >> 1) & 0xF;
- else /*if (version == PSMV_NEW)*/ entry->effectvalue = length & 0xF;
- break;
-
- case 12:
- entry->effect = IT_PORTAMENTO_UP;
- if (version == PSMV_OLD) {- if (length < 4) entry->effectvalue = length | 0xF0;
- else entry->effectvalue = length >> 2;
- } else /*if (version == PSMV_NEW)*/ {- entry->effectvalue = length;
- }
- break;
-
- case 14:
- entry->effect = IT_PORTAMENTO_DOWN;
- if (version == PSMV_OLD) {- if (length < 4) entry->effectvalue = length | 0xF0;
- else entry->effectvalue = length >> 2;
- } else /*if (version == PSMV_NEW)*/ {- entry->effectvalue = length;
- }
- break;
-
- case 15:
- entry->effect = IT_TONE_PORTAMENTO;
- if (version == PSMV_OLD) entry->effectvalue = length >> 2;
- else /*if (version == PSMV_NEW)*/ entry->effectvalue = length;
- break;
-
- case 0x15:
- entry->effect = IT_VIBRATO;
- entry->effectvalue = length;
- break;
-
- case 0x18:
- entry->effect = IT_VOLSLIDE_VIBRATO;
- entry->effectvalue = length;
- break;
-
- case 0x29:
- entry->effect = IT_SET_SAMPLE_OFFSET;
- entry->effectvalue = data[pos+2];
- pos += 2;
- break;
-
- case 0x2A:
- entry->effect = IT_RETRIGGER_NOTE;
- entry->effectvalue = length;
- break;
-
- case 0x33:
-#if 0
- entry->effect = IT_POSITION_JUMP;
- entry->effectvalue = data[pos+2];
-#else
- entry->mask &= ~IT_ENTRY_EFFECT;
-#endif
- pos++;
- break;
-
- case 0x34:
- entry->effect = IT_BREAK_TO_ROW;
- entry->effectvalue = length;
- break;
-
- case 0x3D:
- entry->effect = IT_SET_SPEED;
- entry->effectvalue = length;
- break;
-
- case 0x3E:
- if (length >= 0x20) {- entry->effect = IT_SET_SONG_TEMPO;
- entry->effectvalue = length;
- } else {- entry->mask &= ~IT_ENTRY_EFFECT;
- }
- break;
-
- case 0x47:
- entry->effect = IT_ARPEGGIO;
- entry->effectvalue = length;
- break;
-
- default:
- return -1;
- }
- pos += 2;
- }
- if (entry->mask) entry++;
- }
- }
-
- while (row < nrows) {- IT_SET_END_ROW(entry);
- entry++;
- row++;
- }
-
- pattern->n_entries = entry - pattern->entry;
- if (!pattern->n_entries) return -1;
-
- return 0;
-}
-
-
-static void free_chunks(PSMCHUNK * chunk, int count) {- int n;
-
- for (n = 0; n < count; n++) {- if (chunk[n].data)
- free(chunk[n].data);
- }
-
- free(chunk);
-}
-
-static void dumb_it_optimize_orders(DUMB_IT_SIGDATA * sigdata);
-
-static int pattcmp( const unsigned char *, const unsigned char *, size_t );
-
-static DUMB_IT_SIGDATA *it_psm_load_sigdata(DUMBFILE *f, int * ver, int subsong)
-{- DUMB_IT_SIGDATA *sigdata;
-
- PSMCHUNK *chunk;
- int n_chunks = 0;
-
- PSMCHUNK *songchunk;
- int n_song_chunks = 0;
-
- PSMEVENT *event = 0;
- int n_events = 0;
-
- unsigned char * ptr;
-
- int n, length, o;
-
- int found;
-
- int n_patterns = 0;
-
- int first_pattern_line = -1;
- int first_pattern;
-
- int speed, bpm;
- unsigned char pan[64];
- int vol[32];
-
- if (dumbfile_mgetl(f) != DUMB_ID('P','S','M',' ')) goto error;-
- length = dumbfile_igetl(f);
-
- if (dumbfile_mgetl(f) != DUMB_ID('F','I','L','E')) goto error;-
- chunk = calloc(768, sizeof(*chunk));
-
- while (length >= 8) {- chunk[n_chunks].id = dumbfile_mgetl(f);
- n = dumbfile_igetl(f);
- length -= 8;
- if (n < 0 || n > length)
- goto error_fc;
- chunk[n_chunks].len = n;
- if (n) {- ptr = malloc(n);
- if (!ptr) goto error_fc;
- if (dumbfile_getnc((char *)ptr, n, f) < n)
- {- free(ptr);
- goto error_fc;
- }
- chunk[n_chunks].data = ptr;
- }
- n_chunks++;
- length -= n;
- }
-
- if (!n_chunks) goto error_fc;
-
- sigdata = malloc(sizeof(*sigdata));
- if (!sigdata) goto error_fc;
-
- sigdata->n_patterns = 0;
- sigdata->n_samples = 0;
- sigdata->name[0] = 0;
-
- found = 0;
-
- for (n = 0; n < n_chunks; n++) {- PSMCHUNK * c = &chunk[n];
- switch(c->id) {- case DUMB_ID('S','D','F','T'):- /* song data format? */
- if ((found & 1) || (c->len != 8) || memcmp(c->data, "MAINSONG", 8)) goto error_sd;
- found |= 1;
- break;
-
- case DUMB_ID('S','O','N','G'):- if (/*(found & 2) ||*/ (c->len < 11) /*|| memcmp(c->data, "MAINSONG", 8)*/) goto error_sd;
- found |= 2;
- break;
-
- case DUMB_ID('D','S','M','P'):- sigdata->n_samples++;
- break;
-
- case DUMB_ID('T','I','T','L'):- length = min(sizeof(sigdata->name) - 1, (unsigned)c->len);
- memcpy(sigdata->name, c->data, length);
- sigdata->name[length] = 0;
- }
- }
-
- if (found != 3 || !sigdata->n_samples) goto error_sd;
-
- sigdata->song_message = NULL;
- sigdata->order = NULL;
- sigdata->instrument = NULL;
- sigdata->sample = NULL;
- sigdata->pattern = NULL;
- sigdata->midi = NULL;
- sigdata->checkpoint = NULL;
-
- sigdata->n_instruments = 0;
- sigdata->n_orders = 0;
-
- for (n = 0; n < n_chunks; n++) {- PSMCHUNK * c = &chunk[n];
- if (c->id == DUMB_ID('S','O','N','G')) {- if (subsong == 0) break;
- subsong--;
- }
- }
-
- if (n == n_chunks) return NULL;
- subsong = n;
-
- /*for (n = 0; n < n_chunks; n++) {- PSMCHUNK * c = &chunk[n];
- if (c->id == DUMB_ID('S','O','N','G')) {*/- {- PSMCHUNK * c = &chunk[subsong];
- {- ptr = c->data;
- if (ptr[10] > 32) goto error_usd;
- sigdata->n_pchannels = ptr[10];
- length = c->len - 11;
- ptr += 11;
- songchunk = 0;
- if (length >= 8) {- songchunk = malloc(128 * sizeof(*songchunk));
- if (!songchunk) goto error_usd;
- while (length >= 8) {- songchunk[n_song_chunks].id = DUMB_ID(ptr[0], ptr[1], ptr[2], ptr[3]);
- n = ptr[4] | (ptr[5] << 8) | (ptr[6] << 16) | (ptr[7] << 24);
- length -= 8;
- if (n > length) goto error_sc;
- songchunk[n_song_chunks].len = n;
- songchunk[n_song_chunks].data = ptr + 8;
- n_song_chunks++;
- length -= n;
- ptr += 8 + n;
- }
- }
- /*break;*/
- }
- }
-
- if (!n_song_chunks) goto error_sc;
-
- found = 0;
-
- for (n = 0; n < n_song_chunks; n++) {- PSMCHUNK * c = &songchunk[n];
-
- if (c->id == DUMB_ID('D','A','T','E')) {- /* date of the library build / format spec */
- if (c->len == 6) {- length = c->len;
- ptr = c->data;
- while (length > 0) {- if (*ptr >= '0' && *ptr <= '9') {- found = (found * 10) + (*ptr - '0');
- } else {- found = 0;
- break;
- }
- ptr++;
- length--;
- }
- }
- break;
- }
- }
-
- /*
- if (found != 940506 &&
- found != 940509 &&
- found != 940510 &&
- found != 940530 &&
- found != 940629 &&
- found != PSMV_OLD &&
- found != 941011 &&
- found != PSMV_NEW &&
- found != 940906 &&
- found != 940903 &&
- found != 940914 &&
- found != 941213 &&
- found != 800211) WTF?
- goto error_sc;
- */
-
- *ver = found;
-
- if (found == 800211 ||
- found == PSMV_NEW ||
- found == 940903 ||
- found == 940906 ||
- found == 940914 ||
- found == 941213) found = PSMV_NEW;
- else found = PSMV_OLD;
-
- memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
-
- for (n = 0; n < DUMB_IT_N_CHANNELS; n += 4) {- int sep = 32 * dumb_it_default_panning_separation / 100;
- sigdata->channel_pan[n ] = 32 - sep;
- sigdata->channel_pan[n+1] = 32 + sep;
- sigdata->channel_pan[n+2] = 32 + sep;
- sigdata->channel_pan[n+3] = 32 - sep;
- }
-
- for (n = 0; n < n_song_chunks; n++) {- PSMCHUNK * c = &songchunk[n];
-
- switch (c->id) {- case DUMB_ID('O','P','L','H'):- if (c->len < 2) goto error_sc;
- ptr = c->data;
- o = ptr[0] | (ptr[1] << 8);
- if (!o) goto error_sc;
- event = malloc(o * sizeof(*event));
- if (!event) goto error_sc;
- length = c->len - 2;
- ptr += 2;
- while ((length > 0) && (n_events < o)) {- event[n_events].type = *ptr;
- switch (*ptr) {- case PSM_EVENT_END:
- ptr++;
- length--;
- break;
-
- case PSM_EVENT_PLAY_PATTERN:
- if (found == PSMV_OLD) {- if (length < 5) goto error_ev;
- memcpy(event[n_events].data, ptr + 1, 4);
- ptr += 5;
- length -= 5;
- } else /*if (found == PSMV_NEW)*/ {- if (length < 9) goto error_ev;
- memcpy(event[n_events].data, ptr + 1, 8);
- ptr += 9;
- length -= 9;
- }
- break;
-
- case PSM_EVENT_SET_SPEED:
- case PSM_EVENT_SET_BPM:
- if (length < 2) goto error_ev;
- event[n_events].data[0] = ptr[1];
- ptr += 2;
- length -= 2;
- break;
-
- case PSM_EVENT_JUMP_TO_LINE:
- case PSM_EVENT_CHANGE_VOL:
- if (length < 3) goto error_ev;
- memcpy(event[n_events].data, ptr + 1, 2);
- ptr += 3;
- length -= 3;
- break;
-
- case PSM_EVENT_SAMPLE_MAP_TABLE:
- if (length < 7) goto error_ev;
- memcpy(event[n_events].data, ptr + 1, 6);
- ptr += 7;
- length -= 7;
- break;
-
- case PSM_EVENT_CHANGE_PAN:
- if (length < 4) goto error_ev;
- memcpy(event[n_events].data, ptr + 1, 3);
- ptr += 4;
- length -= 4;
- break;
-
- default:
- goto error_ev;
- }
- n_events++;
- }
- break;
-
- case DUMB_ID('P','P','A','N'):- length = c->len;
- if (length & 1) goto error_ev;
- ptr = c->data;
- o = 0;
- while (length > 0) {- switch (ptr[0]) {- case 0:
- sigdata->channel_pan[o] = ((((int)(signed char)ptr[1]) * 32) / 127) + 32;
- break;
- case 2:
- sigdata->channel_pan[o] = IT_SURROUND;
- break;
- case 4:
- sigdata->channel_pan[o] = 32;
- break;
- }
- ptr += 2;
- length -= 2;
- if (++o >= DUMB_IT_N_CHANNELS) break;
- }
- break;
-
- /*
- case DUMB_ID('P','A','T','T'):- case DUMB_ID('D','S','A','M'):- */
- }
- }
-
- sigdata->flags = IT_STEREO | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX;
-
- sigdata->global_volume = 128;
- sigdata->speed = 6;
- sigdata->tempo = 125;
- sigdata->mixing_volume = 48;
- sigdata->pan_separation = 128;
-
- speed = 0;
- bpm = 0;
- memset(pan, 255, sizeof(pan));
- memset(vol, 255, sizeof(vol));
-
- sigdata->n_patterns = n_events;
- sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
- if (!sigdata->pattern) goto error_ev;
- for (n = 0; n < sigdata->n_patterns; n++)
- sigdata->pattern[n].entry = NULL;
-
- for (n = 0; n < n_events; n++) {- PSMEVENT * e = &event[n];
- switch (e->type) {- case PSM_EVENT_END:
- n = n_events;
- break;
-
- case PSM_EVENT_PLAY_PATTERN:
- for (o = 0; o < n_chunks; o++) {- PSMCHUNK * c = &chunk[o];
- if (c->id == DUMB_ID('P','B','O','D')) {- ptr = c->data;
- length = c->len;
- if (found == PSMV_OLD) {- if (length < 8) goto error_ev;
- if (!pattcmp(ptr + 4, e->data, 4)) {- if (it_psm_process_pattern(&sigdata->pattern[n_patterns], ptr, length, speed, bpm, pan, vol, found)) goto error_ev;
- if (first_pattern_line < 0) {- first_pattern_line = n;
- first_pattern = o;
- }
- e->data[0] = n_patterns;
- e->data[1] = n_patterns >> 8;
- n_patterns++;
- break;
- }
- } else /*if (found == PSMV_NEW)*/ {- if (length < 12) goto error_ev;
- if (!pattcmp(ptr + 4, e->data, 8)) {- if (it_psm_process_pattern(&sigdata->pattern[n_patterns], ptr, length, speed, bpm, pan, vol, found)) goto error_ev;
- if (first_pattern_line < 0) {- first_pattern_line = n;
- first_pattern = o;
- }
- e->data[0] = n_patterns;
- e->data[1] = n_patterns >> 8;
- n_patterns++;
- break;
- }
- }
- }
- }
- if (o == n_chunks) goto error_ev;
-
- speed = 0;
- bpm = 0;
- memset(pan, 255, sizeof(pan));
- memset(vol, 255, sizeof(vol));
-
- e->type = PSM_EVENT_END;
- break;
-
- case PSM_EVENT_JUMP_TO_LINE:
- o = e->data[0] | (e->data[1] << 8);
- if (o >= n_events) goto error_ev;
- if (o == 0) {- /* whew! easy case! */
- sigdata->restart_position = 0;
- n = n_events;
- } else if (o == n) {- /* freeze */
- n = n_events;
- } else if (o > n) {- /* jump ahead, setting played event numbers to zero will prevent endless looping */
- n = o - 1;
- } else if (o >= first_pattern_line) {- /* another semi-easy case */
- sigdata->restart_position = event[o].data[0] | (event[o].data[1] << 8);
- n = n_events;
- } else {- /* crud, try to simulate rerunning all of the commands from the indicated
- * line up to the first pattern, then dupe the first pattern again.
- */
- /*
- PSMCHUNK * c = &chunk[first_pattern];
-
- for (; o < first_pattern_line; o++) {- PSMEVENT * ev = &event[o];
- switch (ev->type) {- case PSM_EVENT_SET_SPEED:
- speed = ev->data[0];
- break;
- case PSM_EVENT_SET_BPM:
- bpm = ev->data[0];
- break;
- case PSM_EVENT_CHANGE_PAN:
- if (ev->data[0] > 31) goto error_ev;
- pan[ev->data[0] * 2] = ev->data[1];
- pan[ev->data[0] * 2 + 1] = ev->data[2];
- break;
- case PSM_EVENT_CHANGE_VOL:
- if (ev->data[0] > 31) goto error_ev;
- vol[ev->data[0]] = ev->data[1];
- break;
- }
- }
-
- if (it_psm_process_pattern(&sigdata->pattern[n_patterns], c->data, c->len, speed, bpm, pan, vol, found)) goto error_ev;
- n_patterns++;
- sigdata->restart_position = 1;
- n = n_events;
-
- Eh, what the hell? PSM has no panning commands anyway.
- */
- sigdata->restart_position = 0;
- n = n_events;
- }
- e->type = PSM_EVENT_END;
- break;
-
- case PSM_EVENT_SET_SPEED:
- speed = e->data[0];
- break;
-
- case PSM_EVENT_SET_BPM:
- bpm = e->data[0];
- break;
-
- case PSM_EVENT_CHANGE_PAN:
- o = e->data[0];
- if (o > 31) goto error_ev;
- pan[o * 2] = e->data[1];
- pan[o * 2 + 1] = e->data[2];
- break;
-
- case PSM_EVENT_CHANGE_VOL:
- o = e->data[0];
- if (o > 31) goto error_ev;
- vol[o] = e->data[1];
- break;
-
- case PSM_EVENT_SAMPLE_MAP_TABLE:
- if (e->data[0] != 0 || e->data[1] != 0xFF ||
- e->data[2] != 0 || e->data[3] != 0 ||
- e->data[4] != 1 || e->data[5] != 0)
- goto error_ev;
- break;
- }
- }
-
- if (n_patterns > 256) goto error_ev;
-
- sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
- if (!sigdata->sample) goto error_ev;
- for (n = 0; n < sigdata->n_samples; n++) {- sigdata->sample[n].data = NULL;
- sigdata->sample[n].flags = 0;
- }
-
- o = 0;
- for (n = 0; n < n_chunks; n++) {- PSMCHUNK * c = &chunk[n];
- if (c->id == DUMB_ID('D','S','M','P')) {- if (it_psm_process_sample(&sigdata->sample[o], c->data, c->len, o, found)) goto error_ev;
- o++;
- }
- }
-
- sigdata->n_orders = n_patterns;
- sigdata->n_patterns = n_patterns;
-
- sigdata->order = malloc(n_patterns);
-
- for (n = 0; n < n_patterns; n++) {- sigdata->order[n] = n;
- }
-
- free(event);
- free(songchunk);
- free_chunks(chunk, n_chunks);
-
- _dumb_it_fix_invalid_orders(sigdata);
-
- dumb_it_optimize_orders(sigdata);
-
- return sigdata;
-
-error_ev:
- free(event);
-error_sc:
- if (songchunk) free(songchunk);
-error_usd:
- _dumb_it_unload_sigdata(sigdata);
- goto error_fc;
-error_sd:
- free(sigdata);
-error_fc:
- free_chunks(chunk, n_chunks);
-error:
- return NULL;
-}
-
-static int it_order_compare(const void *e1, const void *e2) {- if (*((const char *)e1) < *((const char *)e2))
- return -1;
-
- if (*((const char *)e1) > *((const char *)e2))
- return 1;
-
- return 0;
-}
-
-/*
-static int it_optimize_compare(const void *e1, const void *e2) {- if (((const IT_ENTRY *)e1)->channel < ((const IT_ENTRY *)e2)->channel)
- return -1;
-
- if (((const IT_ENTRY *)e1)->channel > ((const IT_ENTRY *)e2)->channel)
- return 1;
-
- return 0;
-}
-*/
-
-static int it_entry_compare(const IT_ENTRY * e1, const IT_ENTRY * e2) {- if (IT_IS_END_ROW(e1) && IT_IS_END_ROW(e2)) return 1;
- if (e1->channel != e2->channel) return 0;
- if (e1->mask != e2->mask) return 0;
- if ((e1->mask & IT_ENTRY_NOTE) && (e1->note != e2->note)) return 0;
- if ((e1->mask & IT_ENTRY_INSTRUMENT) && (e1->instrument != e2->instrument)) return 0;
- if ((e1->mask & IT_ENTRY_VOLPAN) && (e1->volpan != e2->volpan)) return 0;
- if ((e1->mask & IT_ENTRY_EFFECT) && ((e1->effect != e2->effect) || (e1->effectvalue != e2->effectvalue))) return 0;
- return 1;
-}
-
-/*
-static void dumb_it_optimize_pattern(IT_PATTERN * pattern) {- IT_ENTRY * entry, * end;
- IT_ENTRY * rowstart, * rowend;
- IT_ENTRY * current;
-
- if (!pattern->n_entries || !pattern->entry) return;
-
- current = entry = pattern->entry;
- end = entry + pattern->n_entries;
-
- while (entry < end) {- rowstart = entry;
- while (!IT_IS_END_ROW(entry)) entry++;
- rowend = entry;
- if (rowend > rowstart + 1)
- qsort(rowstart, rowend - rowstart, sizeof(IT_ENTRY), &it_optimize_compare);
- entry = rowstart;
- while (entry < rowend) {- if (!(entry->mask)) {}- else if (it_entry_compare(entry, current)) {}- else if (!(current->mask) ||
- ((entry->channel == current->channel) &&
- ((entry->mask | current->mask) == (entry->mask ^ current->mask)))) {- current->mask |= entry->mask;
- if (entry->mask & IT_ENTRY_NOTE) current->note = entry->note;
- if (entry->mask & IT_ENTRY_INSTRUMENT) current->instrument = entry->instrument;
- if (entry->mask & IT_ENTRY_VOLPAN) current->volpan = entry->volpan;
- if (entry->mask & IT_ENTRY_EFFECT) {- current->effect = entry->effect;
- current->effectvalue = entry->effectvalue;
- }
- } else {- if (++current < entry) *current = *entry;
- }
- entry++;
- }
- if (++current < entry) *current = *entry;
- entry++;
- }
-
- current++;
-
- if (current < end) {- IT_ENTRY * opt;
- pattern->n_entries = current - pattern->entry;
- opt = realloc(pattern->entry, pattern->n_entries * sizeof(*pattern->entry));
- if (opt) pattern->entry = opt;
- }
-}
-*/
-
-static int it_pattern_compare(const IT_PATTERN * p1, const IT_PATTERN * p2) {- IT_ENTRY * e1, * end;
- IT_ENTRY * e2;
-
- if (p1 == p2) return 1;
- if (p1->n_entries != p2->n_entries) return 0;
-
- e1 = p1->entry; end = e1 + p1->n_entries;
- e2 = p2->entry;
-
- while (e1 < end) {- if (!it_entry_compare(e1, e2)) return 0;
- e1++; e2++;
- }
-
- return 1;
-}
-
-static void dumb_it_optimize_orders(DUMB_IT_SIGDATA * sigdata) {- int n, o, p;
-
- /*int last_invalid = (sigdata->flags & IT_WAS_AN_XM) ? 255 : 253;*/
-
- unsigned char * order_list;
- int n_patterns;
-
- IT_PATTERN * pattern;
-
- if (!sigdata->n_orders || !sigdata->n_patterns) return;
-
- n_patterns = 0;
- order_list = malloc(sigdata->n_orders);
-
- if (!order_list) return;
-
- for (n = 0; n < sigdata->n_orders; n++) {- if (sigdata->order[n] < sigdata->n_patterns) {- for (o = 0; o < n_patterns; o++) {- if (sigdata->order[n] == order_list[o]) break;
- }
- if (o == n_patterns) {- order_list[n_patterns++] = sigdata->order[n];
- }
- }
- }
-
- if (!n_patterns) {- free(order_list);
- return;
- }
-
- /*for (n = 0; n < n_patterns; n++) {- dumb_it_optimize_pattern(&sigdata->pattern[order_list[n]]);
- }*/
-
- for (n = 0; n < n_patterns; n++) {- for (o = n + 1; o < n_patterns; o++) {- if ((order_list[n] != order_list[o]) &&
- it_pattern_compare(&sigdata->pattern[order_list[n]], &sigdata->pattern[order_list[o]])) {- for (p = 0; p < sigdata->n_orders; p++) {- if (sigdata->order[p] == order_list[o]) {- sigdata->order[p] = order_list[n];
- }
- }
- for (p = o + 1; p < n_patterns; p++) {- if (order_list[p] == order_list[o]) {- order_list[p] = order_list[n];
- }
- }
- order_list[o] = order_list[n];
- }
- }
- }
-
- qsort(order_list, n_patterns, sizeof(*order_list), &it_order_compare);
-
- for (n = 0, o = 0; n < n_patterns; n++) {- if (order_list[n] != order_list[o]) {- if (++o < n) order_list[o] = order_list[n];
- }
- }
-
- n_patterns = o + 1;
-
- pattern = malloc(n_patterns * sizeof(*pattern));
- if (!pattern) {- free(order_list);
- return;
- }
-
- for (n = 0; n < n_patterns; n++) {- pattern[n] = sigdata->pattern[order_list[n]];
- }
-
- for (n = 0; n < sigdata->n_patterns; n++) {- for (o = 0; o < n_patterns; o++) {- if (order_list[o] == n) break;
- }
- if (o == n_patterns) {- if (sigdata->pattern[n].entry)
- free(sigdata->pattern[n].entry);
- }
- }
-
- free(sigdata->pattern);
- sigdata->pattern = pattern;
- sigdata->n_patterns = n_patterns;
-
- for (n = 0; n < sigdata->n_orders; n++) {- for (o = 0; o < n_patterns; o++) {- if (sigdata->order[n] == order_list[o]) {- sigdata->order[n] = o;
- break;
- }
- }
- }
-
- free(order_list);
-}
-
-int dumb_get_psm_subsong_count(DUMBFILE *f) {- int length, subsongs;
- long l;
-
- if (dumbfile_mgetl(f) != DUMB_ID('P','S','M',' ')) return 0;-
- length = dumbfile_igetl(f);
-
- if (dumbfile_mgetl(f) != DUMB_ID('F','I','L','E')) return 0;-
- subsongs = 0;
-
- while (length >= 8 && !dumbfile_error(f)) {- if (dumbfile_mgetl(f) == DUMB_ID('S','O','N','G')) subsongs++;- l = dumbfile_igetl(f);
- dumbfile_skip(f, l);
- length -= l + 8;
- }
-
- if (dumbfile_error(f)) return 0;
-
- return subsongs;
-}
-
-
-
-/* Eww */
-int pattcmp( const unsigned char * a, const unsigned char * b, size_t l )
-{- size_t i, j, na, nb;
- char * p;
-
- na = nb = 0;
-
- i = memcmp( a, b, l );
- if ( !i ) return i;
-
- /* damnit */
-
- for ( i = 0; i < l; ++i )
- {- if ( a [i] >= '0' && a [i] <= '9' ) break;
- }
-
- if ( i < l )
- {- na = strtoul( (const char *)a + i, &p, 10 );
- if ( (const unsigned char *)p == a + i ) return 1;
- }
-
- for ( j = 0; j < l; ++j )
- {- if ( b [j] >= '0' && b [j] <= '9' ) break;
- }
-
- if ( j < l )
- {- nb = strtoul( (const char *)b + j, &p, 10 );
- if ( (const unsigned char *)p == b + j ) return -1;
- }
-
- if ( i < j ) return -1;
- else if ( i > j ) return 1;
-
- i = memcmp( a, b, j );
- if ( i ) return i;
-
- return na - nb;
-}
-
-
-
-DUH *dumb_read_psm_quick(DUMBFILE *f, int subsong)
-{- sigdata_t *sigdata;
- int ver;
-
- DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
-
- sigdata = it_psm_load_sigdata(f, &ver, subsong);
-
- if (!sigdata)
- return NULL;
-
- {- int n_tags = 2;
- char version[16];
- const char *tag[3][2];
- tag[0][0] = "TITLE";
- tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
- tag[1][0] = "FORMAT";
- tag[1][1] = "PSM";
- if ( ver )
- {- tag[2][0] = "FORMATVERSION";
- snprintf( version, 15, "%d", ver );
- version[15] = 0;
- tag[2][1] = (const char *) &version;
- ++n_tags;
- }
- return make_duh(-1, n_tags, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
- }
-}
--- a/dumb/src/it/readptm.c
+++ /dev/null
@@ -1,554 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readptm.c - Code to read a Poly Tracker v2.03 / / \ \
- * module from an open file. | < / \_
- * | \/ /\ /
- * By Chris Moeller. Based on reads3m.c \_ / > /
- * by entheh. | \ / /
- * | ' /
- * \__/
- */
-
-// IT_STEREO... :o
-#include <stdlib.h>
-#include <string.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-
-
-
-static int it_ptm_read_sample_header(IT_SAMPLE *sample, long *offset, DUMBFILE *f)
-{- int flags;
-
- flags = dumbfile_getc(f);
-
- dumbfile_getnc((char *)sample->filename, 12, f);
- sample->filename[12] = 0;
-
- sample->default_volume = dumbfile_getc(f);
-
- sample->C5_speed = dumbfile_igetw(f) << 1;
-
- dumbfile_skip(f, 2); /* segment */
-
- *offset = dumbfile_igetl(f);
-
- sample->length = dumbfile_igetl(f);
- sample->loop_start = dumbfile_igetl(f);
- sample->loop_end = dumbfile_igetl(f);
-
- /* GUSBegin, GUSLStart, GUSLEnd, GUSLoop, reserverd */
- dumbfile_skip(f, 4+4+4+1+1);
-
- dumbfile_getnc((char *)sample->name, 28, f);
- sample->name[28] = 0;
-
- /*
- if (dumbfile_mgetl(f) != DUMB_ID('P','T','M','S'))- return -1;
- */
-
- /* BLAH! Shit likes to have broken or missing sample IDs */
- dumbfile_skip(f, 4);
-
- if ((flags & 3) == 0) {- /* Looks like no sample */
- sample->flags &= ~IT_SAMPLE_EXISTS;
- return dumbfile_error(f);
- }
-
- sample->global_volume = 64;
-
- sample->flags = IT_SAMPLE_EXISTS;
- if (flags & 4) sample->flags |= IT_SAMPLE_LOOP;
- if (flags & 8) sample->flags |= IT_SAMPLE_PINGPONG_LOOP;
-
- if (flags & 16) {- sample->flags |= IT_SAMPLE_16BIT;
-
- sample->length >>= 1;
- sample->loop_start >>= 1;
- sample->loop_end >>= 1;
- }
-
- if (sample->loop_end) sample->loop_end--;
-
- sample->default_pan = 0; // 0 = don't use, or 160 = centre?
-
- if (sample->length <= 0)
- sample->flags &= ~IT_SAMPLE_EXISTS;
- else if (sample->flags & IT_SAMPLE_LOOP) {- if ((unsigned int)sample->loop_end > (unsigned int)sample->length)
- sample->flags &= ~IT_SAMPLE_LOOP;
- else if ((unsigned int)sample->loop_start >= (unsigned int)sample->loop_end)
- sample->flags &= ~IT_SAMPLE_LOOP;
- else
- sample->length = sample->loop_end;
- }
-
-
- //Do we need to set all these?
- sample->vibrato_speed = 0;
- sample->vibrato_depth = 0;
- sample->vibrato_rate = 0;
- sample->vibrato_waveform = IT_VIBRATO_SINE;
- sample->finetune = 0;
- sample->max_resampling_quality = -1;
-
- return dumbfile_error(f);
-}
-
-
-static int it_ptm_read_byte(DUMBFILE *f)
-{- int meh = dumbfile_getc(f);
- if (meh < 0) return 0;
- return meh;
-}
-
-static int it_ptm_read_sample_data(IT_SAMPLE *sample, int last, DUMBFILE *f)
-{- long n;
- int s;
-
- sample->data = malloc(sample->length * (sample->flags & IT_SAMPLE_16BIT ? 2 : 1));
- if (!sample->data)
- return -1;
-
- s = 0;
-
- if (sample->flags & IT_SAMPLE_16BIT) {- unsigned char a, b;
- for (n = 0; n < sample->length; n++) {- a = s += (signed char) it_ptm_read_byte(f);
- b = s += (signed char) it_ptm_read_byte(f);
- ((short *)sample->data)[n] = a | (b << 8);
- }
- } else {- for (n = 0; n < sample->length; n++) {- s += (signed char) it_ptm_read_byte(f);
- ((signed char *)sample->data)[n] = s;
- }
- }
-
- if (dumbfile_error(f) && !last)
- return -1;
-
- return 0;
-}
-
-
-
-static int it_ptm_read_pattern(IT_PATTERN *pattern, DUMBFILE *f, unsigned char *buffer, int length)
-{- int buflen = 0;
- int bufpos = 0;
- int effect, effectvalue;
-
- IT_ENTRY *entry;
-
- unsigned char channel;
-
- if (!length)
- return -1;
-
- pattern->n_rows = 0;
- pattern->n_entries = 0;
-
- /* Read in the pattern data, little by little, and work out how many
- * entries we need room for. Sorry, but this is just so funny...
- */
- for (;;) {- unsigned char b = buffer[buflen++] = dumbfile_getc(f);
-
-#if 1
- static const unsigned char used[8] = {0, 2, 2, 4, 1, 3, 3, 5};- channel = b & 31;
- b >>= 5;
- pattern->n_entries++;
- if (b) {- if (buflen + used[b] >= 65536) return -1;
- dumbfile_getnc((char *)buffer + buflen, used[b], f);
- buflen += used[b];
- } else {- /* End of row */
- if (++pattern->n_rows == 64) break;
- if (buflen >= 65536) return -1;
- }
-#else
- if (b == 0) {- /* End of row */
- pattern->n_entries++;
- if (++pattern->n_rows == 64) break;
- if (buflen >= 65536) return -1;
- } else {- static const unsigned char used[8] = {0, 2, 2, 4, 1, 3, 3, 5};- channel = b & 31;
- b >>= 5;
- if (b) {- pattern->n_entries++;
- if (buflen + used[b] >= 65536) return -1;
- dumbfile_getnc(buffer + buflen, used[b], f);
- buflen += used[b];
- }
- }
-#endif
-
- /* We have ensured that buflen < 65536 at this point, so it is safe
- * to iterate and read at least one more byte without checking.
- * However, now would be a good time to check for errors reading from
- * the file.
- */
-
- if (dumbfile_error(f))
- return -1;
-
- /* Great. We ran out of data, but there should be data for more rows.
- * Fill the rest with null data...
- */
- if (buflen >= length && pattern->n_rows < 64)
- {- while (pattern->n_rows < 64)
- {- if (buflen >= 65536) return -1;
- buffer[buflen++] = 0;
- pattern->n_entries++;
- pattern->n_rows++;
- }
- break;
- }
- }
-
- pattern->entry = malloc(pattern->n_entries * sizeof(*pattern->entry));
-
- if (!pattern->entry)
- return -1;
-
- entry = pattern->entry;
-
- while (bufpos < buflen) {- unsigned char b = buffer[bufpos++];
-
- if (b == 0)
- {- /* End of row */
- IT_SET_END_ROW(entry);
- entry++;
- continue;
- }
-
- channel = b & 31;
-
- if (b & 224) {- entry->mask = 0;
- entry->channel = channel;
-
- if (b & 32) {- unsigned char n = buffer[bufpos++];
- if (n == 254 || (n >= 1 && n <= 120)) {- if (n == 254)
- entry->note = IT_NOTE_CUT;
- else
- entry->note = n - 1;
- entry->mask |= IT_ENTRY_NOTE;
- }
-
- entry->instrument = buffer[bufpos++];
- if (entry->instrument)
- entry->mask |= IT_ENTRY_INSTRUMENT;
- }
-
- if (b & 64) {- effect = buffer[bufpos++];
- effectvalue = buffer[bufpos++];
- _dumb_it_ptm_convert_effect(effect, effectvalue, entry);
- }
-
- if (b & 128) {- entry->volpan = buffer[bufpos++];
- if (entry->volpan <= 64)
- entry->mask |= IT_ENTRY_VOLPAN;
- }
-
- entry++;
- }
- }
-
- ASSERT(entry == pattern->entry + pattern->n_entries);
-
- return 0;
-}
-
-
-
-/** WARNING: this is duplicated in itread.c - also bad practice to use the same struct name unless they are unified in a header */
-/* Currently we assume the sample data are stored after the sample headers in
- * module files. This assumption may be unjustified; let me know if you have
- * trouble.
- */
-
-#define PTM_COMPONENT_INSTRUMENT 1
-#define PTM_COMPONENT_PATTERN 2
-#define PTM_COMPONENT_SAMPLE 3
-
-typedef struct PTM_COMPONENT
-{- unsigned char type;
- unsigned char n;
- long offset;
-}
-PTM_COMPONENT;
-
-
-
-static int ptm_component_compare(const void *e1, const void *e2)
-{- return ((const PTM_COMPONENT *)e1)->offset -
- ((const PTM_COMPONENT *)e2)->offset;
-}
-
-
-
-static DUMB_IT_SIGDATA *it_ptm_load_sigdata(DUMBFILE *f)
-{- DUMB_IT_SIGDATA *sigdata;
-
- PTM_COMPONENT *component;
- int n_components = 0;
-
- int n;
-
- unsigned char *buffer;
-
- sigdata = malloc(sizeof(*sigdata));
- if (!sigdata) return NULL;
-
- /* Skip song name. */
- dumbfile_getnc((char *)sigdata->name, 28, f);
- sigdata->name[28] = 0;
-
- if (dumbfile_getc(f) != 0x1A || dumbfile_igetw(f) != 0x203) {- free(sigdata);
- return NULL;
- }
-
- dumbfile_skip(f, 1);
-
- sigdata->song_message = NULL;
- sigdata->order = NULL;
- sigdata->instrument = NULL;
- sigdata->sample = NULL;
- sigdata->pattern = NULL;
- sigdata->midi = NULL;
- sigdata->checkpoint = NULL;
-
- sigdata->n_orders = dumbfile_igetw(f);
- sigdata->n_instruments = 0;
- sigdata->n_samples = dumbfile_igetw(f);
- sigdata->n_patterns = dumbfile_igetw(f);
-
- if (dumbfile_error(f) || sigdata->n_orders <= 0 || sigdata->n_samples > 255 || sigdata->n_patterns > 128) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- sigdata->n_pchannels = dumbfile_igetw(f);
-
- if (dumbfile_igetw(f) != 0) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- dumbfile_skip(f, 2);
-
- if (dumbfile_mgetl(f) != DUMB_ID('P','T','M','F')) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- dumbfile_skip(f, 16);
-
- sigdata->order = malloc(sigdata->n_orders);
- if (!sigdata->order) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- if (sigdata->n_samples) {- sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
- if (!sigdata->sample) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (n = 0; n < sigdata->n_samples; n++)
- sigdata->sample[n].data = NULL;
- }
-
- if (sigdata->n_patterns) {- sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
- if (!sigdata->pattern) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (n = 0; n < sigdata->n_patterns; n++)
- sigdata->pattern[n].entry = NULL;
- }
-
- /** WARNING: which ones? */
- sigdata->flags = IT_STEREO | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_WAS_A_PTM;
-
- sigdata->global_volume = 128;
- sigdata->speed = 6;
- sigdata->tempo = 125;
- sigdata->mixing_volume = 48;
-
- /* Panning positions for 32 channels */
- {- int i;
- for (i = 0; i < 32; i++) {- int c = dumbfile_getc(f);
- if (c <= 15) {- sigdata->channel_volume[i] = 64;
- sigdata->channel_pan[i] = c;
- } else {- /** WARNING: this could be improved if we support channel muting... */
- sigdata->channel_volume[i] = 0;
- sigdata->channel_pan[i] = 7;
- }
- }
- }
-
- /* Orders, byte each, length = sigdata->n_orders (should be even) */
- dumbfile_getnc((char *)sigdata->order, sigdata->n_orders, f);
- sigdata->restart_position = 0;
-
- component = malloc(768*sizeof(*component));
- if (!component) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- if (dumbfile_seek(f, 352, DFS_SEEK_SET)) {- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- for (n = 0; n < sigdata->n_patterns; n++) {- component[n_components].type = PTM_COMPONENT_PATTERN;
- component[n_components].n = n;
- component[n_components].offset = dumbfile_igetw(f) << 4;
- n_components++;
- }
-
- if (dumbfile_seek(f, 608, DFS_SEEK_SET)) {- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- for (n = 0; n < sigdata->n_samples; n++) {- if (it_ptm_read_sample_header(&sigdata->sample[n], &component[n_components].offset, f)) {- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- if (!(sigdata->sample[n].flags & IT_SAMPLE_EXISTS)) continue;
- component[n_components].type = PTM_COMPONENT_SAMPLE;
- component[n_components].n = n;
- n_components++;
- }
-
- qsort(component, n_components, sizeof(PTM_COMPONENT), &ptm_component_compare);
-
- {- int i;
- for (i = 0; i < 32; i++) {- sigdata->channel_pan[i] -= (sigdata->channel_pan[i] & 8) >> 3;
- sigdata->channel_pan[i] = ((int)sigdata->channel_pan[i] << 5) / 7;
- if (sigdata->channel_pan[i] > 64) sigdata->channel_pan[i] = 64;
- }
- }
-
- sigdata->pan_separation = 128;
-
- if (dumbfile_error(f)) {- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- buffer = malloc(65536);
- if (!buffer) {- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- for (n = 0; n < n_components; n++) {- if (dumbfile_seek(f, component[n].offset, DFS_SEEK_SET)) {- free(buffer);
- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- switch (component[n].type) {-
- case PTM_COMPONENT_PATTERN:
- if (it_ptm_read_pattern(&sigdata->pattern[component[n].n], f, buffer, (n + 1 < n_components) ? (component[n+1].offset - component[n].offset) : 0)) {- free(buffer);
- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- break;
-
- case PTM_COMPONENT_SAMPLE:
- if (it_ptm_read_sample_data(&sigdata->sample[component[n].n], (n + 1 == n_components), f)) {- free(buffer);
- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- }
- }
-
- free(buffer);
- free(component);
-
- _dumb_it_fix_invalid_orders(sigdata);
-
- return sigdata;
-}
-
-DUH *dumb_read_ptm_quick(DUMBFILE *f)
-{- sigdata_t *sigdata;
-
- DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
-
- sigdata = it_ptm_load_sigdata(f);
-
- if (!sigdata)
- return NULL;
-
- {- const char *tag[2][2];
- tag[0][0] = "TITLE";
- tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
- tag[1][0] = "FORMAT";
- tag[1][1] = "PTM";
- return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
- }
-}
--- a/dumb/src/it/readriff.c
+++ /dev/null
@@ -1,57 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readriff.c - Code to read a RIFF module file / / \ \
- * from memory. | < / \_
- * | \/ /\ /
- * \_ / > /
- * By Chris Moeller. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-#include "internal/it.h"
-#include "internal/riff.h"
-
-
-DUH *dumb_read_riff_amff( DUMBFILE * f, struct riff * stream );
-DUH *dumb_read_riff_am( DUMBFILE * f, struct riff * stream );
-DUH *dumb_read_riff_dsmf( DUMBFILE * f, struct riff * stream );
-
-/* dumb_read_riff_quick(): reads a RIFF file into a DUH struct, returning a
- * pointer to the DUH struct. When you have finished with it, you must pass
- * the pointer to unload_duh() so that the memory can be freed.
- */
-DUH *dumb_read_riff_quick( DUMBFILE * f )
-{- DUH * duh;
- struct riff * stream;
- long size;
-
- size = dumbfile_get_size(f);
-
- stream = riff_parse( f, 0, size, 1 );
- if ( ! stream ) stream = riff_parse( f, 0, size, 0 );
-
- if ( ! stream ) return 0;
-
- if ( stream->type == DUMB_ID( 'A', 'M', ' ', ' ' ) )
- duh = dumb_read_riff_am( f, stream );
- else if ( stream->type == DUMB_ID( 'A', 'M', 'F', 'F' ) )
- duh = dumb_read_riff_amff( f, stream );
- else if ( stream->type == DUMB_ID( 'D', 'S', 'M', 'F' ) )
- duh = dumb_read_riff_dsmf( f, stream );
- else duh = 0;
-
- riff_free( stream );
-
- return duh;
-}
--- a/dumb/src/it/reads3m.c
+++ /dev/null
@@ -1,766 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * reads3m.c - Code to read a ScreamTracker 3 / / \ \
- * module from an open file. | < / \_
- * | \/ /\ /
- * By entheh. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-// IT_STEREO... :o
-#include <stdlib.h>
-#include <string.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-
-static int it_s3m_read_sample_header(IT_SAMPLE *sample, long *offset, unsigned char *pack, int cwtv, DUMBFILE *f)
-{- unsigned char type;
- int flags;
-
- type = dumbfile_getc(f);
-
- dumbfile_getnc((char *)sample->filename, 12, f);
- sample->filename[12] = 0;
-
- if (type > 1) {- /** WARNING: no adlib support */
- dumbfile_skip(f, 3 + 12 + 1 + 1 + 2 + 2 + 2 + 12);
- dumbfile_getnc((char *)sample->name, 28, f);
- sample->name[28] = 0;
- dumbfile_skip(f, 4);
- sample->flags &= ~IT_SAMPLE_EXISTS;
- return dumbfile_error(f);
- }
-
- *offset = dumbfile_getc(f) << 20;
- *offset += dumbfile_igetw(f) << 4;
-
- sample->length = dumbfile_igetl(f);
- sample->loop_start = dumbfile_igetl(f);
- sample->loop_end = dumbfile_igetl(f);
-
- sample->default_volume = dumbfile_getc(f);
-
- dumbfile_skip(f, 1);
-
- flags = dumbfile_getc(f);
-
- if (flags < 0 || (flags != 0 && flags != 4))
- /* Sample is packed apparently (or error reading from file). We don't
- * know how to read packed samples.
- */
- return -1;
-
- *pack = flags;
-
- flags = dumbfile_getc(f);
-
- sample->C5_speed = dumbfile_igetl(f) << 1;
-
- /* Skip four unused bytes and three internal variables. */
- dumbfile_skip(f, 4+2+2+4);
-
- dumbfile_getnc((char *)sample->name, 28, f);
- sample->name[28] = 0;
-
- if (type == 0 || sample->length <= 0) {- /* Looks like no-existy. Anyway, there's for sure no 'SCRS' ... */
- sample->flags &= ~IT_SAMPLE_EXISTS;
- return dumbfile_error(f);
- }
-
- if (dumbfile_mgetl(f) != DUMB_ID('S','C','R','S'))- return -1;
-
- sample->global_volume = 64;
-
- sample->flags = IT_SAMPLE_EXISTS;
- if (flags & 1) sample->flags |= IT_SAMPLE_LOOP;
-
- /* The ST3 TECH.DOC is unclear on this, but IMAGO Orpheus is not. Piece of crap. */
-
- if (flags & 2) {- sample->flags |= IT_SAMPLE_STEREO;
-
- if ((cwtv & 0xF000) == 0x2000) {- sample->length >>= 1;
- sample->loop_start >>= 1;
- sample->loop_end >>= 1;
- }
- }
-
- if (flags & 4) {- sample->flags |= IT_SAMPLE_16BIT;
-
- if ((cwtv & 0xF000) == 0x2000) {- sample->length >>= 1;
- sample->loop_start >>= 1;
- sample->loop_end >>= 1;
- }
- }
-
- sample->default_pan = 0; // 0 = don't use, or 160 = centre?
-
- if (sample->flags & IT_SAMPLE_LOOP) {- if ((unsigned int)sample->loop_end > (unsigned int)sample->length)
- /*sample->flags &= ~IT_SAMPLE_LOOP;*/
- sample->loop_end = sample->length;
- else if ((unsigned int)sample->loop_start >= (unsigned int)sample->loop_end)
- sample->flags &= ~IT_SAMPLE_LOOP;
- else
- /* ScreamTracker seems not to save what comes after the loop end
- * point, but rather to assume it is a duplicate of what comes at
- * the loop start point. I am not completely sure of this though.
- * It is easy to evade; simply truncate the sample.
- */
- sample->length = sample->loop_end;
- }
-
-
- //Do we need to set all these?
- sample->vibrato_speed = 0;
- sample->vibrato_depth = 0;
- sample->vibrato_rate = 0;
- sample->vibrato_waveform = IT_VIBRATO_SINE;
- sample->finetune = 0;
- sample->max_resampling_quality = -1;
-
- return dumbfile_error(f);
-}
-
-
-
-static int it_s3m_read_sample_data(IT_SAMPLE *sample, int ffi, unsigned char pack, DUMBFILE *f)
-{- long n;
-
- long datasize = sample->length;
- if (sample->flags & IT_SAMPLE_STEREO) datasize <<= 1;
-
- sample->data = malloc(datasize * (sample->flags & IT_SAMPLE_16BIT ? 2 : 1));
- if (!sample->data)
- return -1;
-
- if (pack == 4) {- if (_dumb_it_read_sample_data_adpcm4(sample, f) < 0)
- return -1;
- }
- else if (sample->flags & IT_SAMPLE_STEREO) {- if (sample->flags & IT_SAMPLE_16BIT) {- for (n = 0; n < datasize; n += 2)
- ((short *)sample->data)[n] = dumbfile_igetw(f);
- for (n = 1; n < datasize; n += 2)
- ((short *)sample->data)[n] = dumbfile_igetw(f);
- } else {- for (n = 0; n < datasize; n += 2)
- ((signed char *)sample->data)[n] = dumbfile_getc(f);
- for (n = 1; n < datasize; n += 2)
- ((signed char *)sample->data)[n] = dumbfile_getc(f);
- }
- } else if (sample->flags & IT_SAMPLE_16BIT)
- for (n = 0; n < sample->length; n++)
- ((short *)sample->data)[n] = dumbfile_igetw(f);
- else
- for (n = 0; n < sample->length; n++)
- ((signed char *)sample->data)[n] = dumbfile_getc(f);
-
- if (dumbfile_error(f))
- return -1;
-
- if (ffi != 1) {- /* Convert to signed. */
- if (sample->flags & IT_SAMPLE_16BIT)
- for (n = 0; n < datasize; n++)
- ((short *)sample->data)[n] ^= 0x8000;
- else
- for (n = 0; n < datasize; n++)
- ((signed char *)sample->data)[n] ^= 0x80;
- }
-
- return 0;
-}
-
-
-
-static int it_s3m_read_pattern(IT_PATTERN *pattern, DUMBFILE *f, unsigned char *buffer)
-{- int length;
- int buflen = 0;
- int bufpos = 0;
-
- IT_ENTRY *entry;
-
- unsigned char channel;
-
- /* Haha, this is hilarious!
- *
- * Well, after some experimentation, it seems that different S3M writers
- * define the format in different ways. The S3M docs say that the first
- * two bytes hold the "length of [the] packed pattern", and the packed
- * pattern data follow. Judging by the contents of ARMANI.S3M, packaged
- * with ScreamTracker itself, the measure of length _includes_ the two
- * bytes used to store the length; in other words, we should read
- * (length - 2) more bytes. However, aryx.s3m, packaged with ModPlug
- * Tracker, excludes these two bytes, so (length) more bytes must be
- * read.
- *
- * Call me crazy, but I just find it insanely funny that the format was
- * misunderstood in this way :D
- *
- * Now we can't just risk reading two extra bytes, because then we
- * overshoot, and DUMBFILEs don't support backward seeking (for a good
- * reason). Luckily, there is a way. We can read the data little by
- * little, and stop when we have 64 rows in memory. Provided we protect
- * against buffer overflow, this method should work with all sensibly
- * written S3M files. If you find one for which it does not work, please
- * let me know at entheh@users.sf.net so I can look at it.
- *
- * "for a good reason" ? What's this nonsense? -kode54
- *
- */
-
- length = dumbfile_igetw(f);
-
- if (dumbfile_error(f) || !length)
- return -1;
-
- pattern->n_rows = 0;
- pattern->n_entries = 0;
-
- /* Read in the pattern data, little by little, and work out how many
- * entries we need room for. Sorry, but this is just so funny...
- */
- for (;;) {- unsigned char b = buffer[buflen++] = dumbfile_getc(f);
-
-#if 1
- static const unsigned char used[8] = {0, 2, 1, 3, 2, 4, 3, 5};- channel = b & 31;
- b >>= 5;
- pattern->n_entries++;
- if (b) {- if (buflen + used[b] >= 65536) return -1;
- if (buflen + used[b] <= length)
- dumbfile_getnc((char *)buffer + buflen, used[b], f);
- else
- memset(buffer + buflen, 0, used[b]);
- buflen += used[b];
- } else {- /* End of row */
- if (++pattern->n_rows == 64) break;
- if (buflen >= 65536) return -1;
- }
-#else
- if (b == 0) {- /* End of row */
- pattern->n_entries++;
- if (++pattern->n_rows == 64) break;
- if (buflen >= 65536) return -1;
- } else {- static const unsigned char used[8] = {0, 2, 1, 3, 2, 4, 3, 5};- channel = b & 31;
- b >>= 5;
- if (b) {- pattern->n_entries++;
- if (buflen + used[b] >= 65536) return -1;
- dumbfile_getnc(buffer + buflen, used[b], f);
- buflen += used[b];
- }
- }
-#endif
-
- /* We have ensured that buflen < 65536 at this point, so it is safe
- * to iterate and read at least one more byte without checking.
- * However, now would be a good time to check for errors reading from
- * the file.
- */
-
- if (dumbfile_error(f))
- return -1;
-
- /* Great. We ran out of data, but there should be data for more rows.
- * Fill the rest with null data...
- */
- if (buflen >= length && pattern->n_rows < 64)
- {- while (pattern->n_rows < 64)
- {- if (buflen >= 65536) return -1;
- buffer[buflen++] = 0;
- pattern->n_entries++;
- pattern->n_rows++;
- }
- break;
- }
- }
-
- pattern->entry = malloc(pattern->n_entries * sizeof(*pattern->entry));
-
- if (!pattern->entry)
- return -1;
-
- entry = pattern->entry;
-
- while (bufpos < buflen) {- unsigned char b = buffer[bufpos++];
-
-#if 1
- if (!(b & ~31))
-#else
- if (b == 0)
-#endif
- {- /* End of row */
- IT_SET_END_ROW(entry);
- entry++;
- continue;
- }
-
- channel = b & 31;
-
- if (b & 224) {- entry->mask = 0;
- entry->channel = channel;
-
- if (b & 32) {- unsigned char n = buffer[bufpos++];
- if (n != 255) {- if (n == 254)
- entry->note = IT_NOTE_CUT;
- else
- entry->note = (n >> 4) * 12 + (n & 15);
- entry->mask |= IT_ENTRY_NOTE;
- }
-
- entry->instrument = buffer[bufpos++];
- if (entry->instrument)
- entry->mask |= IT_ENTRY_INSTRUMENT;
- }
-
- if (b & 64) {- entry->volpan = buffer[bufpos++];
- if (entry->volpan != 255)
- entry->mask |= IT_ENTRY_VOLPAN;
- }
-
- if (b & 128) {- entry->effect = buffer[bufpos++];
- entry->effectvalue = buffer[bufpos++];
- // XXX woot
- if (entry->effect && entry->effect < IT_MIDI_MACRO /*!= 255*/) {- entry->mask |= IT_ENTRY_EFFECT;
- switch (entry->effect) {- case IT_BREAK_TO_ROW:
- entry->effectvalue -= (entry->effectvalue >> 4) * 6;
- break;
-
- case IT_SET_CHANNEL_VOLUME:
- case IT_CHANNEL_VOLUME_SLIDE:
- case IT_PANNING_SLIDE:
- case IT_GLOBAL_VOLUME_SLIDE:
- case IT_PANBRELLO:
- case IT_MIDI_MACRO:
- entry->mask &= ~IT_ENTRY_EFFECT;
- break;
-
- case IT_S:
- switch (entry->effectvalue >> 4) {- case IT_S_SET_PANBRELLO_WAVEFORM:
- case IT_S_FINE_PATTERN_DELAY:
- case IT_S7:
- case IT_S_SET_SURROUND_SOUND:
- case IT_S_SET_MIDI_MACRO:
- entry->mask &= ~IT_ENTRY_EFFECT;
- break;
- }
- break;
- }
- }
- /** WARNING: ARGH! CONVERT TEH EFFECTS!@~ */
- }
-
- entry++;
- }
- }
-
- ASSERT(entry == pattern->entry + pattern->n_entries);
-
- return 0;
-}
-
-
-
-/** WARNING: this is duplicated in itread.c - also bad practice to use the same struct name unless they are unified in a header */
-/* Currently we assume the sample data are stored after the sample headers in
- * module files. This assumption may be unjustified; let me know if you have
- * trouble.
- */
-
-#define S3M_COMPONENT_INSTRUMENT 1
-#define S3M_COMPONENT_PATTERN 2
-#define S3M_COMPONENT_SAMPLE 3
-
-typedef struct S3M_COMPONENT
-{- unsigned char type;
- unsigned char n;
- long offset;
- short sampfirst; /* component[sampfirst] = first sample data after this */
- short sampnext; /* sampnext is used to create linked lists of sample data */
-}
-S3M_COMPONENT;
-
-
-
-static int s3m_component_compare(const void *e1, const void *e2)
-{- return ((const S3M_COMPONENT *)e1)->offset -
- ((const S3M_COMPONENT *)e2)->offset;
-}
-
-
-
-static DUMB_IT_SIGDATA *it_s3m_load_sigdata(DUMBFILE *f, int * cwtv)
-{- DUMB_IT_SIGDATA *sigdata;
-
- int flags, ffi;
- int default_pan_present;
-
- int master_volume;
-
- unsigned char sample_pack[256];
-
- S3M_COMPONENT *component;
- int n_components = 0;
-
- int n;
-
- unsigned char *buffer;
-
- sigdata = malloc(sizeof(*sigdata));
- if (!sigdata) return NULL;
-
- dumbfile_getnc((char *)sigdata->name, 28, f);
- sigdata->name[28] = 0;
-
- n = dumbfile_getc(f);
-
- if (n != 0x1A && n != 0) {- free(sigdata);
- return NULL;
- }
-
- if (dumbfile_getc(f) != 16) {- free(sigdata);
- return NULL;
- }
-
- dumbfile_skip(f, 2);
-
- sigdata->song_message = NULL;
- sigdata->order = NULL;
- sigdata->instrument = NULL;
- sigdata->sample = NULL;
- sigdata->pattern = NULL;
- sigdata->midi = NULL;
- sigdata->checkpoint = NULL;
-
- sigdata->n_orders = dumbfile_igetw(f);
- sigdata->n_instruments = 0;
- sigdata->n_samples = dumbfile_igetw(f);
- sigdata->n_patterns = dumbfile_igetw(f);
-
- if (dumbfile_error(f) || sigdata->n_orders <= 0 || sigdata->n_samples > 256 || sigdata->n_patterns > 256) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- sigdata->order = malloc(sigdata->n_orders);
- if (!sigdata->order) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- if (sigdata->n_samples) {- sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
- if (!sigdata->sample) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (n = 0; n < sigdata->n_samples; n++)
- sigdata->sample[n].data = NULL;
- }
-
- if (sigdata->n_patterns) {- sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
- if (!sigdata->pattern) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (n = 0; n < sigdata->n_patterns; n++)
- sigdata->pattern[n].entry = NULL;
- }
-
- flags = dumbfile_igetw(f);
-
- *cwtv = dumbfile_igetw(f);
-
- if (*cwtv == 0x1300) {- /** WARNING: volume slides on every frame */
- }
-
- ffi = dumbfile_igetw(f);
-
- /** WARNING: which ones? */
- sigdata->flags = IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_WAS_AN_S3M;
-
- if (dumbfile_mgetl(f) != DUMB_ID('S','C','R','M')) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- sigdata->global_volume = dumbfile_getc(f);
- if ( !sigdata->global_volume || sigdata->global_volume > 64 ) sigdata->global_volume = 64;
- sigdata->speed = dumbfile_getc(f);
- if (sigdata->speed == 0) sigdata->speed = 6; // Should we? What about tempo?
- sigdata->tempo = dumbfile_getc(f);
- master_volume = dumbfile_getc(f); // 7 bits; +128 for stereo
- sigdata->mixing_volume = master_volume & 127;
-
- if (master_volume & 128) sigdata->flags |= IT_STEREO;
-
- /* Skip GUS Ultra Click Removal byte. */
- dumbfile_getc(f);
-
- default_pan_present = dumbfile_getc(f);
-
- dumbfile_skip(f, 8);
-
- /* Skip Special Custom Data Pointer. */
- /** WARNING: investigate this? */
- dumbfile_igetw(f);
-
- sigdata->n_pchannels = 0;
- /* Channel settings for 32 channels, 255=unused, +128=disabled */
- {- int i;
- int sep = (7 * dumb_it_default_panning_separation + 50) / 100;
- for (i = 0; i < 32; i++) {- int c = dumbfile_getc(f);
- if (!(c & (128 | 16))) { /* +128=disabled, +16=Adlib */- if (sigdata->n_pchannels < i + 1) sigdata->n_pchannels = i + 1;
- sigdata->channel_volume[i] = 64;
- sigdata->channel_pan[i] = c & 8 ? 7 + sep : 7 - sep;
- /** WARNING: ah, but it should be 7 for mono... */
- } else {- /** WARNING: this could be improved if we support channel muting... */
- sigdata->channel_volume[i] = 0;
- sigdata->channel_pan[i] = 7;
- }
- }
- }
-
- /* Orders, byte each, length = sigdata->n_orders (should be even) */
- dumbfile_getnc((char *)sigdata->order, sigdata->n_orders, f);
- sigdata->restart_position = 0;
-
- component = malloc(768*sizeof(*component));
- if (!component) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- for (n = 0; n < sigdata->n_samples; n++) {- component[n_components].type = S3M_COMPONENT_SAMPLE;
- component[n_components].n = n;
- component[n_components].offset = dumbfile_igetw(f) << 4;
- component[n_components].sampfirst = -1;
- n_components++;
- }
-
- for (n = 0; n < sigdata->n_patterns; n++) {- long offset = dumbfile_igetw(f) << 4;
- if (offset) {- component[n_components].type = S3M_COMPONENT_PATTERN;
- component[n_components].n = n;
- component[n_components].offset = offset;
- component[n_components].sampfirst = -1;
- n_components++;
- } else {- /** WARNING: Empty 64-row pattern ... ? (this does happen!) */
- sigdata->pattern[n].n_rows = 64;
- sigdata->pattern[n].n_entries = 0;
- }
- }
-
- qsort(component, n_components, sizeof(S3M_COMPONENT), &s3m_component_compare);
-
- /* I found a really dumb S3M file that claimed to contain default pan
- * data but didn't contain any. Programs would load it by reading part of
- * the first instrument header, assuming the data to be default pan
- * positions, and then rereading the instrument module. We cannot do this
- * without obfuscating the file input model, so we insert an extra check
- * here that we won't overrun the start of the first component.
- */
- if (default_pan_present == 252 && component[0].offset >= dumbfile_pos(f) + 32) {- /* Channel default pan positions */
- int i;
- for (i = 0; i < 32; i++) {- int c = dumbfile_getc(f);
- if (c & 32)
- sigdata->channel_pan[i] = c & 15;
- }
- }
-
- {- int i;
- for (i = 0; i < 32; i++) {- sigdata->channel_pan[i] -= (sigdata->channel_pan[i] & 8) >> 3;
- sigdata->channel_pan[i] = ((int)sigdata->channel_pan[i] << 5) / 7;
- }
- }
-
- sigdata->pan_separation = 128;
-
- if (dumbfile_error(f)) {- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- buffer = malloc(65536);
- if (!buffer) {- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- for (n = 0; n < n_components; n++) {- long offset;
- int m;
-
- offset = 0;
- if (dumbfile_seek(f, component[n].offset, DFS_SEEK_SET)) {- free(buffer);
- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- switch (component[n].type) {-
- case S3M_COMPONENT_PATTERN:
- if (it_s3m_read_pattern(&sigdata->pattern[component[n].n], f, buffer)) {- free(buffer);
- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- break;
-
- case S3M_COMPONENT_SAMPLE:
- if (it_s3m_read_sample_header(&sigdata->sample[component[n].n], &offset, &sample_pack[component[n].n], *cwtv, f)) {- free(buffer);
- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- if (sigdata->sample[component[n].n].flags & IT_SAMPLE_EXISTS) {- short *sample;
-
- for (m = n + 1; m < n_components; m++)
- if (component[m].offset > offset)
- break;
- m--;
-
- sample = &component[m].sampfirst;
-
- while (*sample >= 0 && component[*sample].offset <= offset)
- sample = &component[*sample].sampnext;
-
- component[n].sampnext = *sample;
- *sample = n;
-
- component[n].offset = offset;
- }
- }
-
- m = component[n].sampfirst;
-
- while (m >= 0) {- // XXX
- if (dumbfile_seek(f, component[m].offset, DFS_SEEK_SET)) {- free(buffer);
- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- if (it_s3m_read_sample_data(&sigdata->sample[component[m].n], ffi, sample_pack[component[m].n], f)) {- free(buffer);
- free(component);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- m = component[m].sampnext;
- }
- }
-
- free(buffer);
- free(component);
-
- _dumb_it_fix_invalid_orders(sigdata);
-
- return sigdata;
-}
-
-static char hexdigit(int in)
-{- if (in < 10) return in + '0';
- else return in + 'A' - 10;
-}
-
-DUH *dumb_read_s3m_quick(DUMBFILE *f)
-{- sigdata_t *sigdata;
- int cwtv;
-
- DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
-
- sigdata = it_s3m_load_sigdata(f, &cwtv);
-
- if (!sigdata)
- return NULL;
-
- {- char version[8];
- const char *tag[3][2];
- tag[0][0] = "TITLE";
- tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
- tag[1][0] = "FORMAT";
- tag[1][1] = "S3M";
- tag[2][0] = "TRACKERVERSION";
- version[0] = hexdigit((cwtv >> 8) & 15);
- version[1] = '.';
- version[2] = hexdigit((cwtv >> 4) & 15);
- version[3] = hexdigit(cwtv & 15);
- version[4] = 0;
- tag[2][1] = (const char *) &version;
- return make_duh(-1, 3, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
- }
-}
--- a/dumb/src/it/reads3m2.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * reads3m2.c - Function to read a ScreamTracker 3 / / \ \
- * module from an open file and do an | < / \_
- * initial run-through. | \/ /\ /
- * \_ / > /
- * Split off from reads3m.c by entheh. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-
-
-
-DUH *dumb_read_s3m(DUMBFILE *f)
-{- DUH *duh = dumb_read_s3m_quick(f);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/readstm.c
+++ /dev/null
@@ -1,397 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readstm.c - Code to read a ScreamTracker 2 / / \ \
- * module from an open file. | < / \_
- * | \/ /\ /
- * By Chris Moeller. \_ / > /
- * | \ / /
- * | ' /
- * \__/
- */
-
-// IT_STEREO... :o
-#include <stdlib.h>
-#include <string.h>
-#include <limits.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-
-#ifdef _MSC_VER
- #define strnicmp _strnicmp
-#else
- #if defined(unix) || defined(__unix__) || defined(__unix)
- #include <strings.h>
- #endif
- #define strnicmp strncasecmp
-#endif
-
-static int it_stm_read_sample_header( IT_SAMPLE *sample, DUMBFILE *f, unsigned short *offset )
-{- dumbfile_getnc( (char *) sample->filename, 12, f );
- sample->filename[12] = 0;
-
- memcpy( sample->name, sample->filename, 13 );
-
- dumbfile_skip( f, 2 );
-
- *offset = dumbfile_igetw( f );
-
- sample->length = dumbfile_igetw( f );
- sample->loop_start = dumbfile_igetw( f );
- sample->loop_end = dumbfile_igetw( f );
-
- sample->default_volume = dumbfile_getc( f );
-
- dumbfile_skip( f, 1 );
-
- sample->C5_speed = dumbfile_igetw( f ) << 3;
-
- dumbfile_skip( f, 6 );
-
- if ( sample->length < 4 || !sample->default_volume ) {- /* Looks like no-existy. */
- sample->flags &= ~IT_SAMPLE_EXISTS;
- sample->length = 0;
- *offset = 0;
- return dumbfile_error( f );
- }
-
- sample->flags = IT_SAMPLE_EXISTS;
- sample->global_volume = 64;
- sample->default_pan = 0; // 0 = don't use, or 160 = centre?
-
- if ( ( sample->loop_start < sample->length ) &&
- ( sample->loop_end > sample->loop_start ) &&
- ( sample->loop_end != 0xFFFF ) ) {- sample->flags |= IT_SAMPLE_LOOP;
- if ( sample->loop_end > sample->length ) sample->loop_end = sample->length;
- }
-
- //Do we need to set all these?
- sample->vibrato_speed = 0;
- sample->vibrato_depth = 0;
- sample->vibrato_rate = 0;
- sample->vibrato_waveform = IT_VIBRATO_SINE;
- sample->finetune = 0;
- sample->max_resampling_quality = -1;
-
- return dumbfile_error(f);
-}
-
-static int it_stm_read_sample_data( IT_SAMPLE *sample, DUMBFILE * f )
-{- if ( ! sample->length ) return 0;
-
- sample->data = malloc( sample->length );
- if (!sample->data)
- return -1;
-
- dumbfile_getnc( sample->data, sample->length, f );
-
- return dumbfile_error( f );
-}
-
-static int it_stm_read_pattern( IT_PATTERN *pattern, DUMBFILE *f, unsigned char *buffer )
-{- int pos;
- int channel;
- int row;
- IT_ENTRY *entry;
-
- pattern->n_rows = 64;
-
- if ( dumbfile_getnc( (char *) buffer, 64 * 4 * 4, f ) != 64 * 4 * 4 )
- return -1;
-
- pattern->n_entries = 64;
- pos = 0;
- for ( row = 0; row < 64; ++row ) {- for ( channel = 0; channel < 4; ++channel ) {- if ( buffer[ pos + 0 ] | buffer[ pos + 1 ] | buffer[ pos + 2 ] | buffer[ pos + 3 ] )
- ++pattern->n_entries;
- pos += 4;
- }
- }
-
- pattern->entry = malloc( pattern->n_entries * sizeof( *pattern->entry ) );
- if ( !pattern->entry )
- return -1;
-
- entry = pattern->entry;
- pos = 0;
- for ( row = 0; row < 64; ++row ) {- for ( channel = 0; channel < 4; ++channel ) {- if ( buffer[ pos + 0 ] | buffer[ pos + 1 ] | buffer[ pos + 2 ] | buffer[ pos + 3 ] ) {- unsigned note;
- note = buffer[ pos + 0 ];
- entry->channel = channel;
- entry->mask = 0;
- entry->instrument = buffer[ pos + 1 ] >> 3;
- entry->volpan = ( buffer[ pos + 1 ] & 0x07 ) + ( buffer[ pos + 2 ] >> 1 );
- entry->effect = buffer[ pos + 2 ] & 0x0F;
- entry->effectvalue = buffer[ pos + 3 ];
- if ( entry->instrument && entry->instrument < 32 )
- entry->mask |= IT_ENTRY_INSTRUMENT;
- if ( note < 251 ) {- entry->mask |= IT_ENTRY_NOTE;
- entry->note = ( note >> 4 ) * 12 + ( note & 0x0F );
- }
- if ( entry->volpan <= 64 )
- entry->mask |= IT_ENTRY_VOLPAN;
- entry->mask |= IT_ENTRY_EFFECT;
- switch ( entry->effect ) {- case IT_SET_SPEED:
- /* taken care of in the renderer */
- break;
-
- case IT_BREAK_TO_ROW:
- entry->effectvalue -= (entry->effectvalue >> 4) * 6;
- break;
-
- case IT_JUMP_TO_ORDER:
- case IT_VOLUME_SLIDE:
- case IT_PORTAMENTO_DOWN:
- case IT_PORTAMENTO_UP:
- case IT_TONE_PORTAMENTO:
- case IT_VIBRATO:
- case IT_TREMOR:
- case IT_ARPEGGIO:
- case IT_VOLSLIDE_VIBRATO:
- case IT_VOLSLIDE_TONEPORTA:
- break;
-
- default:
- entry->mask &= ~IT_ENTRY_EFFECT;
- break;
- }
- if ( entry->mask ) ++entry;
- }
- pos += 4;
- }
- IT_SET_END_ROW(entry);
- ++entry;
- }
-
- pattern->n_entries = entry - pattern->entry;
-
- return 0;
-}
-
-
-
-static DUMB_IT_SIGDATA *it_stm_load_sigdata(DUMBFILE *f, int * version)
-{- DUMB_IT_SIGDATA *sigdata;
-
- char tracker_name[ 8 ];
-
- unsigned short sample_offset[ 31 ];
-
- int n;
-
- sigdata = malloc(sizeof(*sigdata));
- if (!sigdata) return NULL;
-
- /* Skip song name. */
- dumbfile_getnc((char *)sigdata->name, 20, f);
- sigdata->name[20] = 0;
-
- dumbfile_getnc(tracker_name, 8, f);
- n = dumbfile_getc(f);
- if ( n != 0x02 && n != 0x1A && n != 0x1B )
- {- free( sigdata );
- return NULL;
- }
- if ( dumbfile_getc(f) != 2 ) /* only support modules */
- {- free( sigdata );
- return NULL;
- }
- if ( strnicmp( tracker_name, "!Scream!", 8 ) &&
- strnicmp( tracker_name, "BMOD2STM", 8 ) &&
- strnicmp( tracker_name, "WUZAMOD!", 8 ) )
- {- free( sigdata );
- return NULL;
- }
-
- *version = dumbfile_mgetw(f);
-
- sigdata->song_message = NULL;
- sigdata->order = NULL;
- sigdata->instrument = NULL;
- sigdata->sample = NULL;
- sigdata->pattern = NULL;
- sigdata->midi = NULL;
- sigdata->checkpoint = NULL;
-
- sigdata->n_instruments = 0;
- sigdata->n_samples = 31;
- sigdata->n_pchannels = 4;
-
- sigdata->tempo = 125;
- sigdata->mixing_volume = 48;
- sigdata->pan_separation = 128;
-
- /** WARNING: which ones? */
- sigdata->flags = IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_WAS_AN_S3M | IT_WAS_AN_STM | IT_STEREO;
-
- n = dumbfile_getc(f);
- if ( n < 32 ) n = 32;
- sigdata->speed = n;
- sigdata->n_patterns = dumbfile_getc(f);
- sigdata->global_volume = dumbfile_getc(f) << 1;
- if ( sigdata->global_volume > 128 ) sigdata->global_volume = 128;
-
- dumbfile_skip(f, 13);
-
- if ( dumbfile_error(f) || sigdata->n_patterns < 1 || sigdata->n_patterns > 99 ) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
- if (!sigdata->sample) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (n = 0; n < sigdata->n_samples; n++)
- sigdata->sample[n].data = NULL;
-
- if (sigdata->n_patterns) {- sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
- if (!sigdata->pattern) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (n = 0; n < sigdata->n_patterns; n++)
- sigdata->pattern[n].entry = NULL;
- }
-
- memset( sigdata->channel_volume, 64, 4 );
- n = 32 * dumb_it_default_panning_separation / 100;
- sigdata->channel_pan[ 0 ] = 32 + n;
- sigdata->channel_pan[ 1 ] = 32 - n;
- sigdata->channel_pan[ 2 ] = 32 + n;
- sigdata->channel_pan[ 3 ] = 32 - n;
-
- for ( n = 0; n < sigdata->n_samples; ++n ) {- if ( it_stm_read_sample_header( &sigdata->sample[ n ], f, &sample_offset[ n ] ) ) {- _dumb_it_unload_sigdata( sigdata );
- return NULL;
- }
- }
-
- sigdata->order = malloc( 128 );
- if ( !sigdata->order ) {- _dumb_it_unload_sigdata( sigdata );
- return NULL;
- }
-
- /* Orders, byte each, length = sigdata->n_orders (should be even) */
- dumbfile_getnc( (char *) sigdata->order, *version >= 0x200 ? 128 : 64, f );
- if (*version < 0x200) memset( sigdata->order + 64, 0xFF, 64 );
- sigdata->restart_position = 0;
-
- for ( n = 127; n >= 0; --n ) {- if ( sigdata->order[ n ] < sigdata->n_patterns ) break;
- }
- if ( n < 0 ) {- _dumb_it_unload_sigdata( sigdata );
- return NULL;
- }
- sigdata->n_orders = n + 1;
-
- for ( n = 0; n < 128; ++n ) {- if ( sigdata->order[ n ] >= 99 ) sigdata->order[ n ] = 0xFF;
- }
-
- if ( sigdata->n_patterns ) {- unsigned char * buffer = malloc( 64 * 4 * 4 );
- if ( ! buffer ) {- _dumb_it_unload_sigdata( sigdata );
- return NULL;
- }
- for ( n = 0; n < sigdata->n_patterns; ++n ) {- if ( it_stm_read_pattern( &sigdata->pattern[ n ], f, buffer ) ) {- free( buffer );
- _dumb_it_unload_sigdata( sigdata );
- return NULL;
- }
- }
- free( buffer );
- }
-
- for ( n = 0; n < sigdata->n_samples; ++n ) {- if ( sample_offset[ n ] )
- {- if ( dumbfile_seek( f, sample_offset[ n ] * 16, DFS_SEEK_SET ) ||
- it_stm_read_sample_data( &sigdata->sample[ n ], f ) ) {- _dumb_it_unload_sigdata( sigdata );
- return NULL;
- }
- }
- else
- {- sigdata->sample[ n ].flags = 0;
- sigdata->sample[ n ].length = 0;
- }
- }
-
- _dumb_it_fix_invalid_orders(sigdata);
-
- return sigdata;
-}
-
-DUH *dumb_read_stm_quick(DUMBFILE *f)
-{- sigdata_t *sigdata;
- int ver;
-
- DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
-
- sigdata = it_stm_load_sigdata(f , &ver);
-
- if (!sigdata)
- return NULL;
-
- {- char version[16];
- const char *tag[2][2];
- tag[0][0] = "TITLE";
- tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
- tag[1][0] = "FORMAT";
- version[0] = 'S';
- version[1] = 'T';
- version[2] = 'M';
- version[3] = ' ';
- version[4] = 'v';
- version[5] = '0' + ((ver >> 8) & 15);
- version[6] = '.';
- if ((ver & 255) > 99)
- {- version[7] = '0' + ((ver & 255) / 100 );
- version[8] = '0' + (((ver & 255) / 10) % 10);
- version[9] = '0' + ((ver & 255) % 10);
- version[10] = 0;
- }
- else
- {- version[7] = '0' + ((ver & 255) / 10);
- version[8] = '0' + ((ver & 255) % 10);
- version[9] = 0;
- }
- tag[1][1] = (const char *) &version;
- return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
- }
-}
--- a/dumb/src/it/readstm2.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readstm2.c - Function to read a ScreamTracker 2 / / \ \
- * module from an open file and do an | < / \_
- * initial run-through. | \/ /\ /
- * \_ / > /
- * By Chris Moeller. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-
-
-
-DUH *dumb_read_stm(DUMBFILE *f)
-{- DUH *duh = dumb_read_stm_quick(f);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/readxm.c
+++ /dev/null
@@ -1,1428 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readxm.c - Code to read a Fast Tracker II / / \ \
- * module from an open file. | < / \_
- * | \/ /\ /
- * By Julien Cugniere. Some bits of code taken \_ / > /
- * from reads3m.c. | \ / /
- * | ' /
- * \__/
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-#include "internal/dumbfile.h"
-
-
-
-/** TODO:
-
- * XM_TREMOLO doesn't sound quite right...
- * XM_SET_ENVELOPE_POSITION todo.
-
- * VIBRATO conversion needs to be checked (sample/effect/volume). Plus check
- that effect memory is correct when using XM_VOLSLIDE_VIBRATO.
- - sample vibrato (instrument vibrato) is now handled correctly. - entheh
-
- * XM_E_SET_VIBRATO/TREMOLO_CONTROL: effectvalue&4 -> don't retrig wave when
- a new instrument is played. In retrigger_note()?. Is it worth implementing?
-
- * Lossy fadeout approximation. 0..31 converted to 0 --> won't fade at all.
-
- * Replace DUMB's sawtooth by ramp_down/ramp_up. Update XM loader.
-
- * A lot of things need to be reset when the end of the song is reached.
-
- * It seems that IT and XM don't behave the same way when dealing with
- mixed loops. When IT encounters multiple SBx (x>0) commands on the same
- row, it decrements the loop count for all, but only execute the loop of
- the last one (highest channel). FT2 only decrements the loop count of the
- last one. Not that I know of any modules using so convoluted combinations!
-
- * Maybe we could remove patterns that don't appear in the order table ? Or
- provide a function to "optimize" a DUMB_IT_SIGDATA ?
-
-*/
-
-
-
-#define XM_LINEAR_FREQUENCY 1 /* otherwise, use amiga slides */
-
-#define XM_ENTRY_PACKED 128
-#define XM_ENTRY_NOTE 1
-#define XM_ENTRY_INSTRUMENT 2
-#define XM_ENTRY_VOLUME 4
-#define XM_ENTRY_EFFECT 8
-#define XM_ENTRY_EFFECTVALUE 16
-
-#define XM_NOTE_OFF 97
-
-#define XM_ENVELOPE_ON 1
-#define XM_ENVELOPE_SUSTAIN 2
-#define XM_ENVELOPE_LOOP 4
-
-#define XM_SAMPLE_NO_LOOP 0
-#define XM_SAMPLE_FORWARD_LOOP 1
-#define XM_SAMPLE_PINGPONG_LOOP 2
-#define XM_SAMPLE_16BIT 16
-#define XM_SAMPLE_STEREO 32
-
-#define XM_VIBRATO_SINE 0
-#define XM_VIBRATO_SQUARE 1
-#define XM_VIBRATO_RAMP_DOWN 2
-#define XM_VIBRATO_RAMP_UP 3
-
-
-
-/* Probably useless :) */
-const char xm_convert_vibrato[] = {- IT_VIBRATO_SINE,
- IT_VIBRATO_XM_SQUARE,
- IT_VIBRATO_RAMP_DOWN,
- IT_VIBRATO_RAMP_UP,
- IT_VIBRATO_RANDOM
-};
-
-
-
-#define XM_MAX_SAMPLES_PER_INSTRUMENT 16
-
-
-
-/* Extra data that doesn't fit inside IT_INSTRUMENT */
-typedef struct XM_INSTRUMENT_EXTRA
-{- int n_samples;
- int vibrato_type;
- int vibrato_sweep; /* 0-0xFF */
- int vibrato_depth; /* 0-0x0F */
- int vibrato_speed; /* 0-0x3F */
- int sample_header_size;
-}
-XM_INSTRUMENT_EXTRA;
-
-
-
-/* Trims off trailing white space, usually added by the tracker on file creation
- */
-static void trim_whitespace(char *ptr, size_t size)
-{- char *p = ptr + size - 1;
- while (p >= ptr && *p <= 0x20) *p-- = '\0';
-}
-
-/* Frees the original block if it can't resize it or if size is 0, and acts
- * as malloc if ptr is NULL.
- */
-static void *safe_realloc(void *ptr, size_t size)
-{- if (ptr == NULL)
- return malloc(size);
-
- if (size == 0) {- free(ptr);
- return NULL;
- } else {- void *new_block = realloc(ptr, size);
- if (!new_block)
- free(ptr);
- return new_block;
- }
-}
-
-
-
-/* The interpretation of the XM volume column is left to the player. Here, we
- * just filter bad values.
- */
-// This function is so tiny now, should we inline it?
-static void it_xm_convert_volume(int volume, IT_ENTRY *entry)
-{- entry->mask |= IT_ENTRY_VOLPAN;
- entry->volpan = volume;
-
- switch (volume >> 4) {- case 0xA: /* set vibrato speed */
- case 0xB: /* vibrato */
- case 0xF: /* tone porta */
- case 0x6: /* vol slide up */
- case 0x7: /* vol slide down */
- case 0x8: /* fine vol slide up */
- case 0x9: /* fine vol slide down */
- case 0xC: /* set panning */
- case 0xD: /* pan slide left */
- case 0xE: /* pan slide right */
- case 0x1: /* set volume */
- case 0x2: /* set volume */
- case 0x3: /* set volume */
- case 0x4: /* set volume */
- break;
-
- case 0x5:
- if (volume == 0x50)
- break; /* set volume */
- /* else fall through */
-
- default:
- entry->mask &= ~IT_ENTRY_VOLPAN;
- break;
- }
-}
-
-
-
-static int it_xm_read_pattern(IT_PATTERN *pattern, DUMBFILE *f, int n_channels, unsigned char *buffer, int version)
-{- int size;
- int pos;
- int channel;
- int row;
- int effect, effectvalue;
- IT_ENTRY *entry;
-
- /* pattern header size */
- if (dumbfile_igetl(f) != ( version == 0x0102 ? 0x08 : 0x09 ) ) {- TRACE("XM error: unexpected pattern header size\n");- return -1;
- }
-
- /* pattern data packing type */
- if (dumbfile_getc(f) != 0) {- TRACE("XM error: unexpected pattern packing type\n");- return -1;
- }
-
- if ( version == 0x0102 )
- pattern->n_rows = dumbfile_getc(f) + 1;
- else
- pattern->n_rows = dumbfile_igetw(f); /* 1..256 */
- size = dumbfile_igetw(f);
- pattern->n_entries = 0;
-
- if (dumbfile_error(f))
- return -1;
-
- if (size == 0)
- return 0;
-
- if (size > 1280 * n_channels) {- TRACE("XM error: pattern data size > %d bytes\n", 1280 * n_channels);- return -1;
- }
-
- if (dumbfile_getnc((char *)buffer, size, f) < size)
- return -1;
-
- /* compute number of entries */
- pattern->n_entries = 0;
- pos = channel = row = 0;
- while (pos < size) {- if (!(buffer[pos] & XM_ENTRY_PACKED) || (buffer[pos] & 31))
- pattern->n_entries++;
-
- channel++;
- if (channel >= n_channels) {- channel = 0;
- row++;
- pattern->n_entries++;
- }
-
- if (buffer[pos] & XM_ENTRY_PACKED) {- static const char offset[] = { 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4,- 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5 };
- pos += 1 + offset[buffer[pos] & 31];
- } else {- pos += 5;
- }
- }
-
- if (row > pattern->n_rows) {- TRACE("XM error: wrong number of rows in pattern data\n");- return -1;
- }
-
- /* Whoops, looks like some modules may be short, a few channels, maybe even rows... */
-
- while (row < pattern->n_rows)
- {- pattern->n_entries++;
- row++;
- }
-
- pattern->entry = malloc(pattern->n_entries * sizeof(*pattern->entry));
- if (!pattern->entry)
- return -1;
-
- /* read the entries */
- entry = pattern->entry;
- pos = channel = row = 0;
- while (pos < size) {- unsigned char mask;
-
- if (buffer[pos] & XM_ENTRY_PACKED)
- mask = buffer[pos++] & 31;
- else
- mask = 31;
-
- if (mask) {- ASSERT(entry < pattern->entry + pattern->n_entries);
-
- entry->channel = channel;
- entry->mask = 0;
-
- if (mask & XM_ENTRY_NOTE) {- int note = buffer[pos++]; /* 1-96 <=> C0-B7 */
- entry->note = (note == XM_NOTE_OFF) ? (IT_NOTE_OFF) : (note-1);
- entry->mask |= IT_ENTRY_NOTE;
- }
-
- if (mask & XM_ENTRY_INSTRUMENT) {- entry->instrument = buffer[pos++]; /* 1-128 */
- entry->mask |= IT_ENTRY_INSTRUMENT;
- }
-
- if (mask & XM_ENTRY_VOLUME)
- it_xm_convert_volume(buffer[pos++], entry);
-
- effect = effectvalue = 0;
- if (mask & XM_ENTRY_EFFECT) effect = buffer[pos++];
- if (mask & XM_ENTRY_EFFECTVALUE) effectvalue = buffer[pos++];
- _dumb_it_xm_convert_effect(effect, effectvalue, entry, 0);
-
- entry++;
- }
-
- channel++;
- if (channel >= n_channels) {- channel = 0;
- row++;
- IT_SET_END_ROW(entry);
- entry++;
- }
- }
-
- while (row < pattern->n_rows)
- {- row++;
- IT_SET_END_ROW(entry);
- entry++;
- }
-
- return 0;
-}
-
-
-
-static int it_xm_make_envelope(IT_ENVELOPE *envelope, const unsigned short *data, int y_offset)
-{- int i, pos, val;
-
- if (envelope->n_nodes > 12) {- /* XXX
- TRACE("XM error: wrong number of envelope nodes (%d)\n", envelope->n_nodes);- envelope->n_nodes = 0;
- return -1; */
- envelope->n_nodes = 12;
- }
-
- if (envelope->sus_loop_start >= 12) envelope->flags &= ~IT_ENVELOPE_SUSTAIN_LOOP;
- if (envelope->loop_end >= 12) envelope->loop_end = 0;
- if (envelope->loop_start >= envelope->loop_end) envelope->flags &= ~IT_ENVELOPE_LOOP_ON;
-
- pos = 0;
- for (i = 0; i < envelope->n_nodes; i++) {- envelope->node_t[i] = data[pos++];
- val = data[pos++];
- if (val > 64) {- TRACE("XM error: out-of-range envelope node (node_y[%d]=%d)\n", i, val);- /* FT2 seems to simply clip the value */
- val = 64;
- }
- envelope->node_y[i] = (signed char)(val + y_offset);
- }
-
- return 0;
-}
-
-
-
-typedef struct LIMITED_XM LIMITED_XM;
-
-struct LIMITED_XM
-{- unsigned char *buffered;
- long ptr, limit, allocated;
- DUMBFILE *remaining;
-};
-
-static int limit_xm_resize(void *f, long n)
-{- DUMBFILE *df = f;
- LIMITED_XM *lx = df->file;
- if (lx->buffered || n) {- if (n > lx->allocated) {- unsigned char *buffered = realloc( lx->buffered, n );
- if ( !buffered ) return -1;
- lx->buffered = buffered;
- memset( buffered + lx->allocated, 0, n - lx->allocated );
- lx->allocated = n;
- }
- if ( dumbfile_getnc( (char *)lx->buffered, n, lx->remaining ) < n ) return -1;
- } else if (!n) {- if ( lx->buffered ) free( lx->buffered );
- lx->buffered = NULL;
- lx->allocated = 0;
- }
- lx->limit = n;
- lx->ptr = 0;
- return 0;
-}
-
-static int limit_xm_skip_end(void *f, long n)
-{- DUMBFILE *df = f;
- LIMITED_XM *lx = df->file;
- return dumbfile_skip( lx->remaining, n );
-}
-
-static int limit_xm_skip(void *f, long n)
-{- LIMITED_XM *lx = f;
- lx->ptr += n;
- return 0;
-}
-
-
-
-static int limit_xm_getc(void *f)
-{- LIMITED_XM *lx = f;
- if (lx->ptr >= lx->allocated) {- return 0;
- }
- return lx->buffered[lx->ptr++];
-}
-
-
-
-static long limit_xm_getnc(char *ptr, long n, void *f)
-{- LIMITED_XM *lx = f;
- int left;
- left = lx->allocated - lx->ptr;
- if (n > left) {- if (left > 0) {- memcpy( ptr, lx->buffered + lx->ptr, left );
- memset( ptr + left, 0, n - left );
- } else {- memset( ptr, 0, n );
- }
- } else {- memcpy( ptr, lx->buffered + lx->ptr, n );
- }
- lx->ptr += n;
- return n;
-}
-
-
-
-static void limit_xm_close(void *f)
-{- LIMITED_XM *lx = f;
- if (lx->buffered) free(lx->buffered);
- /* Do NOT close lx->remaining */
- free(f);
-}
-
-
-/* These two can be stubs since this implementation doesn't use seeking */
-static int limit_xm_seek(void *f, long n)
-{- (void)f;
- (void)n;
- return 1;
-}
-
-
-
-static long limit_xm_get_size(void *f)
-{- (void)f;
- return 0;
-}
-
-
-
-DUMBFILE_SYSTEM limit_xm_dfs = {- NULL,
- &limit_xm_skip,
- &limit_xm_getc,
- &limit_xm_getnc,
- &limit_xm_close,
- &limit_xm_seek,
- &limit_xm_get_size
-};
-
-static DUMBFILE *dumbfile_limit_xm(DUMBFILE *f)
-{- LIMITED_XM * lx = malloc(sizeof(*lx));
- lx->remaining = f;
- lx->buffered = NULL;
- lx->ptr = 0;
- lx->limit = 0;
- lx->allocated = 0;
- return dumbfile_open_ex( lx, &limit_xm_dfs );
-}
-
-static int it_xm_read_instrument(IT_INSTRUMENT *instrument, XM_INSTRUMENT_EXTRA *extra, DUMBFILE *f)
-{- unsigned long size, bytes_read;
- unsigned short vol_points[24];
- unsigned short pan_points[24];
- int i, type;
- const unsigned long max_size = 4 + 22 + 1 + 2 + 4 + 96 + 48 + 48 + 1 * 14 + 2 + 2;
- unsigned long skip_end = 0;
-
- /* Header size. Tends to be more than the actual size of the structure.
- * So unread bytes must be skipped before reading the first sample
- * header.
- */
-
- if ( limit_xm_resize( f, 4 ) < 0 ) return -1;
-
- size = dumbfile_igetl(f);
-
- if ( size == 0 ) size = max_size;
- else if ( size > max_size )
- {- skip_end = size - max_size;
- size = max_size;
- }
-
- if ( limit_xm_resize( f, size - 4 ) < 0 ) return -1;
-
- dumbfile_getnc((char *)instrument->name, 22, f);
- instrument->name[22] = 0;
- trim_whitespace((char *)instrument->name, 22);
- instrument->filename[0] = 0;
- dumbfile_skip(f, 1); /* Instrument type. Should be 0, but seems random. */
- extra->n_samples = dumbfile_igetw(f);
-
- if (dumbfile_error(f) || (unsigned int)extra->n_samples > XM_MAX_SAMPLES_PER_INSTRUMENT)
- return -1;
-
- bytes_read = 4 + 22 + 1 + 2;
-
- if (extra->n_samples) {- /* sample header size */
- /*i = dumbfile_igetl(f);
- if (!i || i > 0x28) i = 0x28;*/
- dumbfile_skip(f, 4);
- i = 0x28;
- extra->sample_header_size = i;
-
- /* sample map */
- for (i = 0; i < 96; i++) {- instrument->map_sample[i] = dumbfile_getc(f) + 1;
- instrument->map_note[i] = i;
- }
-
- if (dumbfile_error(f))
- return 1;
-
- /* volume/panning envelopes */
- for (i = 0; i < 24; i++)
- vol_points[i] = dumbfile_igetw(f);
- for (i = 0; i < 24; i++)
- pan_points[i] = dumbfile_igetw(f);
-
- instrument->volume_envelope.n_nodes = dumbfile_getc(f);
- instrument->pan_envelope.n_nodes = dumbfile_getc(f);
-
- if (dumbfile_error(f))
- return -1;
-
- instrument->volume_envelope.sus_loop_start = dumbfile_getc(f);
- instrument->volume_envelope.loop_start = dumbfile_getc(f);
- instrument->volume_envelope.loop_end = dumbfile_getc(f);
-
- instrument->pan_envelope.sus_loop_start = dumbfile_getc(f);
- instrument->pan_envelope.loop_start = dumbfile_getc(f);
- instrument->pan_envelope.loop_end = dumbfile_getc(f);
-
- /* The envelope handler for XM files won't use sus_loop_end. */
-
- type = dumbfile_getc(f);
- instrument->volume_envelope.flags = 0;
- if ((type & XM_ENVELOPE_ON) && instrument->volume_envelope.n_nodes)
- instrument->volume_envelope.flags |= IT_ENVELOPE_ON;
- if (type & XM_ENVELOPE_LOOP) instrument->volume_envelope.flags |= IT_ENVELOPE_LOOP_ON;
-#if 1
- if (type & XM_ENVELOPE_SUSTAIN) instrument->volume_envelope.flags |= IT_ENVELOPE_SUSTAIN_LOOP;
-#else // This is now handled in itrender.c
- /* let's avoid fading out when reaching the last envelope node */
- if (!(type & XM_ENVELOPE_LOOP)) {- instrument->volume_envelope.loop_start = instrument->volume_envelope.n_nodes-1;
- instrument->volume_envelope.loop_end = instrument->volume_envelope.n_nodes-1;
- }
- instrument->volume_envelope.flags |= IT_ENVELOPE_LOOP_ON;
-#endif
-
- type = dumbfile_getc(f);
- instrument->pan_envelope.flags = 0;
- if ((type & XM_ENVELOPE_ON) && instrument->pan_envelope.n_nodes)
- instrument->pan_envelope.flags |= IT_ENVELOPE_ON;
- if (type & XM_ENVELOPE_LOOP) instrument->pan_envelope.flags |= IT_ENVELOPE_LOOP_ON; // should this be here?
- if (type & XM_ENVELOPE_SUSTAIN) instrument->pan_envelope.flags |= IT_ENVELOPE_SUSTAIN_LOOP;
-
- if (it_xm_make_envelope(&instrument->volume_envelope, vol_points, 0) != 0) {- TRACE("XM error: volume envelope\n");- if (instrument->volume_envelope.flags & IT_ENVELOPE_ON) return -1;
- }
-
- if (it_xm_make_envelope(&instrument->pan_envelope, pan_points, -32) != 0) {- TRACE("XM error: pan envelope\n");- if (instrument->pan_envelope.flags & IT_ENVELOPE_ON) return -1;
- }
-
- instrument->pitch_envelope.flags = 0;
-
- extra->vibrato_type = dumbfile_getc(f);
- extra->vibrato_sweep = dumbfile_getc(f);
- extra->vibrato_depth = dumbfile_getc(f);
- extra->vibrato_speed = dumbfile_getc(f);
-
- if (dumbfile_error(f) || extra->vibrato_type > 4) // XXX
- return -1;
-
- /** WARNING: lossy approximation */
- instrument->fadeout = (dumbfile_igetw(f)*128 + 64)/0xFFF;
-
- dumbfile_skip(f, 2); /* reserved */
-
- bytes_read += 4 + 96 + 48 + 48 + 14*1 + 2 + 2;
- } else
- for (i = 0; i < 96; i++)
- instrument->map_sample[i] = 0;
-
- if (size > bytes_read && dumbfile_skip(f, size - bytes_read))
- return -1;
-
- if (skip_end && limit_xm_skip_end(f, skip_end))
- return -1;
-
- instrument->new_note_action = NNA_NOTE_CUT;
- instrument->dup_check_type = DCT_OFF;
- instrument->dup_check_action = DCA_NOTE_CUT;
- instrument->pp_separation = 0;
- instrument->pp_centre = 60; /* C-5 */
- instrument->global_volume = 128;
- instrument->default_pan = 32;
- instrument->random_volume = 0;
- instrument->random_pan = 0;
- instrument->filter_cutoff = 0;
- instrument->filter_resonance = 0;
-
- return 0;
-}
-
-
-
-/* I (entheh) have two XM files saved by a very naughty program. After a
- * 16-bit sample, it saved a rogue byte. The length of the sample was indeed
- * an odd number, incremented to include the rogue byte.
- *
- * In this function we are converting sample lengths and loop points so they
- * are measured in samples. This means we forget about the extra bytes, and
- * they don't get skipped. So we fail trying to read the next instrument.
- *
- * To get around this, this function returns the number of rogue bytes that
- * won't be accounted for by reading sample->length samples. It returns a
- * negative number on failure.
- */
-static int it_xm_read_sample_header(IT_SAMPLE *sample, DUMBFILE *f)
-{- int type;
- int relative_note_number; /* relative to C4 */
- int finetune;
- int roguebytes;
- int roguebytesmask;
- int reserved;
-
- sample->length = dumbfile_igetl(f);
- sample->loop_start = dumbfile_igetl(f);
- sample->loop_end = sample->loop_start + dumbfile_igetl(f);
- sample->global_volume = 64;
- sample->default_volume = dumbfile_getc(f);
- finetune = (signed char)dumbfile_getc(f); /* -128..127 <=> -1 semitone .. +127/128 of a semitone */
- type = dumbfile_getc(f);
- sample->default_pan = dumbfile_getc(f); /* 0-255 */
- relative_note_number = (signed char)dumbfile_getc(f);
-
- reserved = dumbfile_getc(f);
-
- dumbfile_getnc((char *)sample->name, 22, f);
- sample->name[22] = 0;
- trim_whitespace((char *)sample->name, 22);
-
- sample->filename[0] = 0;
-
- if (dumbfile_error(f))
- return -1;
-
- sample->C5_speed = (long)(16726.0*pow(DUMB_SEMITONE_BASE, relative_note_number) /**pow(DUMB_PITCH_BASE, )*/ );
- sample->finetune = finetune*2;
-
- sample->flags = IT_SAMPLE_EXISTS;
-
- if (reserved == 0xAD &&
- (!(type & (XM_SAMPLE_16BIT | XM_SAMPLE_STEREO))))
- {- /* F U Olivier Lapicque */
- roguebytes = 4;
- roguebytesmask = 4 << 2;
- }
- else
- {- roguebytes = (int)sample->length;
- roguebytesmask = 3;
- }
-
- if (type & XM_SAMPLE_16BIT) {- sample->flags |= IT_SAMPLE_16BIT;
- sample->length >>= 1;
- sample->loop_start >>= 1;
- sample->loop_end >>= 1;
- } else
- roguebytesmask >>= 1;
-
- if (type & XM_SAMPLE_STEREO) {- sample->flags |= IT_SAMPLE_STEREO;
- sample->length >>= 1;
- sample->loop_start >>= 1;
- sample->loop_end >>= 1;
- } else
- roguebytesmask >>= 1;
-
- roguebytes &= roguebytesmask;
-
- if ((unsigned int)sample->loop_start < (unsigned int)sample->loop_end) {- if (type & XM_SAMPLE_FORWARD_LOOP) sample->flags |= IT_SAMPLE_LOOP;
- if (type & XM_SAMPLE_PINGPONG_LOOP) sample->flags |= IT_SAMPLE_LOOP | IT_SAMPLE_PINGPONG_LOOP;
- }
-
- if (sample->length <= 0)
- sample->flags &= ~IT_SAMPLE_EXISTS;
- else if ((unsigned int)sample->loop_end > (unsigned int)sample->length)
- sample->flags &= ~IT_SAMPLE_LOOP;
- else if ((unsigned int)sample->loop_start >= (unsigned int)sample->loop_end)
- sample->flags &= ~IT_SAMPLE_LOOP;
-
- return roguebytes;
-}
-
-
-
-static int it_xm_read_sample_data(IT_SAMPLE *sample, unsigned char roguebytes, DUMBFILE *f)
-{- int old;
- long i;
- long truncated_size;
- int n_channels;
- long datasize;
-
- if (!(sample->flags & IT_SAMPLE_EXISTS))
- return dumbfile_skip(f, roguebytes);
-
- /* let's get rid of the sample data coming after the end of the loop */
- if ((sample->flags & IT_SAMPLE_LOOP) && sample->loop_end < sample->length && roguebytes != 4) {- truncated_size = sample->length - sample->loop_end;
- sample->length = sample->loop_end;
- } else {- truncated_size = 0;
- }
-
- n_channels = sample->flags & IT_SAMPLE_STEREO ? 2 : 1;
- datasize = sample->length * n_channels;
-
- sample->data = malloc(datasize * (sample->flags & IT_SAMPLE_16BIT ? 2 : 1));
- if (!sample->data)
- return -1;
-
- if (roguebytes == 4)
- {- if (_dumb_it_read_sample_data_adpcm4(sample, f) < 0)
- return -1;
- roguebytes = 0;
- }
- else
- {- /* sample data is stored as signed delta values */
- old = 0;
- if (sample->flags & IT_SAMPLE_16BIT)
- for (i = 0; i < sample->length; i++)
- ((short *)sample->data)[i*n_channels] = old += dumbfile_igetw(f);
- else
- for (i = 0; i < sample->length; i++)
- ((signed char *)sample->data)[i*n_channels] = old += dumbfile_getc(f);
- }
-
- /* skip truncated data */
- dumbfile_skip(f, (sample->flags & IT_SAMPLE_16BIT) ? (2*truncated_size) : (truncated_size));
-
- if (sample->flags & IT_SAMPLE_STEREO) {- old = 0;
- if (sample->flags & IT_SAMPLE_16BIT)
- for (i = 1; i < datasize; i += 2)
- ((short *)sample->data)[i] = old += dumbfile_igetw(f);
- else
- for (i = 1; i < datasize; i += 2)
- ((signed char *)sample->data)[i] = old += dumbfile_getc(f);
-
- /* skip truncated data */
- dumbfile_skip(f, (sample->flags & IT_SAMPLE_16BIT) ? (2*truncated_size) : (truncated_size));
- }
-
- dumbfile_skip(f, roguebytes);
-
- if (dumbfile_error(f))
- return -1;
-
- return 0;
-}
-
-
-
-/* "Real programmers don't document. If it was hard to write,
- * it should be hard to understand."
- *
- * (Never trust the documentation provided with a tracker.
- * Real files are the only truth...)
- */
-static DUMB_IT_SIGDATA *it_xm_load_sigdata(DUMBFILE *f, int * version)
-{- DUMB_IT_SIGDATA *sigdata;
- char id_text[18];
-
- int header_size;
- int flags;
- int n_channels;
- int total_samples;
- int i, j;
-
- /* check ID text */
- if (dumbfile_getnc(id_text, 17, f) < 17)
- return NULL;
- id_text[17] = 0;
- if (strcmp(id_text, "Extended Module: ") != 0) {- TRACE("XM error: Not an Extended Module\n");- return NULL;
- }
-
- sigdata = malloc(sizeof(*sigdata));
- if (!sigdata)
- return NULL;
-
- /* song name */
- if (dumbfile_getnc((char *)sigdata->name, 20, f) < 20) {- free(sigdata);
- return NULL;
- }
- sigdata->name[20] = 0;
- trim_whitespace((char *)sigdata->name, 20);
-
- if (dumbfile_getc(f) != 0x1A) {- TRACE("XM error: 0x1A not found\n");- free(sigdata);
- return NULL;
- }
-
- /* tracker name */
- if (dumbfile_skip(f, 20)) {- free(sigdata);
- return NULL;
- }
-
- /* version number */
- * version = dumbfile_igetw(f);
- if (* version > 0x0104 || * version < 0x0102) {- TRACE("XM error: wrong format version\n");- free(sigdata);
- return NULL;
- }
-
- /*
- ------------------
- --- Header ---
- ------------------
- */
-
- /* header size */
- header_size = dumbfile_igetl(f);
- if (header_size < (4 + 2*8 + 1) || header_size > 0x114) {- TRACE("XM error: unexpected header size\n");- free(sigdata);
- return NULL;
- }
-
- sigdata->song_message = NULL;
- sigdata->order = NULL;
- sigdata->instrument = NULL;
- sigdata->sample = NULL;
- sigdata->pattern = NULL;
- sigdata->midi = NULL;
- sigdata->checkpoint = NULL;
-
- sigdata->n_samples = 0;
- sigdata->n_orders = dumbfile_igetw(f);
- sigdata->restart_position = dumbfile_igetw(f);
- n_channels = dumbfile_igetw(f); /* max 32 but we'll be lenient */
- sigdata->n_pchannels = n_channels;
- sigdata->n_patterns = dumbfile_igetw(f);
- sigdata->n_instruments = dumbfile_igetw(f); /* max 128 */ /* XXX upped to 256 */
- flags = dumbfile_igetw(f);
- sigdata->speed = dumbfile_igetw(f);
- if (sigdata->speed == 0) sigdata->speed = 6; // Should we? What about tempo?
- sigdata->tempo = dumbfile_igetw(f);
-
- // FT2 always clips restart position against the song length
- if (sigdata->restart_position > sigdata->n_orders)
- sigdata->restart_position = sigdata->n_orders;
- // And FT2 starts playback on order 0, regardless of length,
- // and only checks if the next order is greater than or equal
- // to this, not the current pattern. Work around this with
- // DUMB's playback core by overriding a zero length with one.
- if (sigdata->n_orders == 0)
- sigdata->n_orders = 1;
-
- /* sanity checks */
- // XXX
- i = header_size - 4 - 2 * 8; /* Maximum number of orders expected */
- if (dumbfile_error(f) || sigdata->n_orders <= 0 || sigdata->n_orders > i || sigdata->n_patterns > 256 || sigdata->n_instruments > 256 || n_channels > DUMB_IT_N_CHANNELS) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- //if (sigdata->restart_position >= sigdata->n_orders)
- //sigdata->restart_position = 0;
-
- /* order table */
- sigdata->order = malloc(sigdata->n_orders*sizeof(*sigdata->order));
- if (!sigdata->order) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- dumbfile_getnc((char *)sigdata->order, sigdata->n_orders, f);
- dumbfile_skip(f, i - sigdata->n_orders);
-
- if (dumbfile_error(f)) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- if ( * version > 0x103 ) {- /*
- --------------------
- --- Patterns ---
- --------------------
- */
-
- sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
- if (!sigdata->pattern) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (i = 0; i < sigdata->n_patterns; i++)
- sigdata->pattern[i].entry = NULL;
-
- {- unsigned char *buffer = malloc(1280 * n_channels); /* 256 rows * 5 bytes */
- if (!buffer) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (i = 0; i < sigdata->n_patterns; i++) {- if (it_xm_read_pattern(&sigdata->pattern[i], f, n_channels, buffer, * version) != 0) {- free(buffer);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- }
- free(buffer);
- }
-
- /*
- -----------------------------------
- --- Instruments and Samples ---
- -----------------------------------
- */
-
- sigdata->instrument = malloc(sigdata->n_instruments * sizeof(*sigdata->instrument));
- if (!sigdata->instrument) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- /* With XM, samples are not global, they're part of an instrument. In a
- * file, each instrument is stored with its samples. Because of this, I
- * don't know how to find how many samples are present in the file. Thus
- * I have to do n_instruments reallocation on sigdata->sample.
- * Looking at FT2, it doesn't seem possible to have more than 16 samples
- * per instrument (even though n_samples is stored as 2 bytes). So maybe
- * we could allocate a 128*16 array of samples, and shrink it back to the
- * correct size when we know it?
- * Alternatively, I could allocate samples by blocks of N (still O(n)),
- * or double the number of allocated samples when I need more (O(log n)).
- */
- total_samples = 0;
- sigdata->sample = NULL;
-
- for (i = 0; i < sigdata->n_instruments; i++) {- XM_INSTRUMENT_EXTRA extra;
-
- DUMBFILE * lf = dumbfile_limit_xm( f );
- if ( !lf ) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- if (it_xm_read_instrument(&sigdata->instrument[i], &extra, lf) < 0) {- // XXX
- if ( ! i )
- {- TRACE("XM error: instrument %d\n", i+1);- dumbfile_close( lf );
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- else
- {- dumbfile_close( lf );
- sigdata->n_instruments = i;
- break;
- }
- }
-
- if (extra.n_samples) {- unsigned char roguebytes[XM_MAX_SAMPLES_PER_INSTRUMENT];
-
- /* adjust instrument sample map (make indices absolute) */
- for (j = 0; j < 96; j++)
- sigdata->instrument[i].map_sample[j] += total_samples;
-
- sigdata->sample = safe_realloc(sigdata->sample, sizeof(*sigdata->sample)*(total_samples+extra.n_samples));
- if (!sigdata->sample) {- dumbfile_close( lf );
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (j = total_samples; j < total_samples+extra.n_samples; j++)
- sigdata->sample[j].data = NULL;
-
- if ( limit_xm_resize( lf, 0 ) < 0 ) {- dumbfile_close( lf );
- _dumb_it_unload_sigdata( sigdata );
- return NULL;
- }
-
- /* read instrument's samples */
- for (j = 0; j < extra.n_samples; j++) {- IT_SAMPLE *sample = &sigdata->sample[total_samples+j];
- int b;
- if ( limit_xm_resize( lf, extra.sample_header_size ) < 0 ) {- dumbfile_close( lf );
- _dumb_it_unload_sigdata( sigdata );
- return NULL;
- }
- b = it_xm_read_sample_header(sample, lf);
- if (b < 0) {- dumbfile_close( lf );
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- roguebytes[j] = b;
- // Any reason why these can't be set inside it_xm_read_sample_header()?
- sample->vibrato_speed = extra.vibrato_speed;
- sample->vibrato_depth = extra.vibrato_depth;
- sample->vibrato_rate = extra.vibrato_sweep;
- /* Rate and sweep don't match, but the difference is
- * accounted for in itrender.c.
- */
- sample->vibrato_waveform = xm_convert_vibrato[extra.vibrato_type];
- sample->max_resampling_quality = -1;
- }
- for (j = 0; j < extra.n_samples; j++) {- if (it_xm_read_sample_data(&sigdata->sample[total_samples+j], roguebytes[j], f) != 0) {- dumbfile_close( lf );
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- }
- total_samples += extra.n_samples;
- }
-
- dumbfile_close( lf );
- }
-
- sigdata->n_samples = total_samples;
- } else {- // ahboy! old layout!
- // first instruments and sample headers, then patterns, then sample data!
-
- /*
- -----------------------------------
- --- Instruments and Samples ---
- -----------------------------------
- */
-
- unsigned char * roguebytes = malloc( sigdata->n_instruments * XM_MAX_SAMPLES_PER_INSTRUMENT );
- if (!roguebytes) {- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- sigdata->instrument = malloc(sigdata->n_instruments * sizeof(*sigdata->instrument));
- if (!sigdata->instrument) {- free(roguebytes);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- total_samples = 0;
- sigdata->sample = NULL;
-
- for (i = 0; i < sigdata->n_instruments; i++) {- XM_INSTRUMENT_EXTRA extra;
-
- DUMBFILE * lf = dumbfile_limit_xm( f );
- if ( !lf ) {- free(roguebytes);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- if (it_xm_read_instrument(&sigdata->instrument[i], &extra, lf) < 0) {- TRACE("XM error: instrument %d\n", i+1);- dumbfile_close(lf);
- free(roguebytes);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
-
- if (extra.n_samples) {- /* adjust instrument sample map (make indices absolute) */
- for (j = 0; j < 96; j++)
- sigdata->instrument[i].map_sample[j] += total_samples;
-
- sigdata->sample = safe_realloc(sigdata->sample, sizeof(*sigdata->sample)*(total_samples+extra.n_samples));
- if (!sigdata->sample) {- dumbfile_close( lf );
- free(roguebytes);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (j = total_samples; j < total_samples+extra.n_samples; j++)
- sigdata->sample[j].data = NULL;
-
- if ( limit_xm_resize( lf, 0 ) < 0 ) {- dumbfile_close( lf );
- free( roguebytes );
- _dumb_it_unload_sigdata( sigdata );
- return NULL;
- }
-
- /* read instrument's samples */
- for (j = 0; j < extra.n_samples; j++) {- IT_SAMPLE *sample = &sigdata->sample[total_samples+j];
- int b;
- if ( limit_xm_resize( lf, extra.sample_header_size ) < 0 ) {- dumbfile_close( lf );
- free( roguebytes );
- _dumb_it_unload_sigdata( sigdata );
- return NULL;
- }
- b = it_xm_read_sample_header(sample, lf);
- if (b < 0) {- free(roguebytes);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- roguebytes[total_samples+j] = b;
- // Any reason why these can't be set inside it_xm_read_sample_header()?
- sample->vibrato_speed = extra.vibrato_speed;
- sample->vibrato_depth = extra.vibrato_depth;
- sample->vibrato_rate = extra.vibrato_sweep;
- /* Rate and sweep don't match, but the difference is
- * accounted for in itrender.c.
- */
- sample->vibrato_waveform = xm_convert_vibrato[extra.vibrato_type];
- sample->max_resampling_quality = -1;
- }
- total_samples += extra.n_samples;
- }
-
- dumbfile_close( lf );
- }
-
- sigdata->n_samples = total_samples;
-
- /*
- --------------------
- --- Patterns ---
- --------------------
- */
-
- sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
- if (!sigdata->pattern) {- free(roguebytes);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (i = 0; i < sigdata->n_patterns; i++)
- sigdata->pattern[i].entry = NULL;
-
- {- unsigned char *buffer = malloc(1280 * n_channels); /* 256 rows * 5 bytes */
- if (!buffer) {- free(roguebytes);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- for (i = 0; i < sigdata->n_patterns; i++) {- if (it_xm_read_pattern(&sigdata->pattern[i], f, n_channels, buffer, * version) != 0) {- free(buffer);
- free(roguebytes);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- }
- free(buffer);
- }
-
- // and now we load the sample data
- for (j = 0; j < total_samples; j++) {- if (it_xm_read_sample_data(&sigdata->sample[j], roguebytes[j], f) != 0) {- free(roguebytes);
- _dumb_it_unload_sigdata(sigdata);
- return NULL;
- }
- }
-
- free(roguebytes);
- }
-
-
- sigdata->flags = IT_WAS_AN_XM | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_STEREO | IT_USE_INSTRUMENTS;
- // Are we OK with IT_COMPATIBLE_GXX off?
- //
- // When specifying note + instr + tone portamento, and an old note is still playing (even after note off):
- // - If Compatible Gxx is on, the new note will be triggered only if the instrument _changes_.
- // - If Compatible Gxx is off, the new note will always be triggered, provided the instrument is specified.
- // - FT2 seems to do the latter (unconfirmed).
-
- // Err, wait. XM playback has its own code. The change made to the IT
- // playbackc code didn't affect XM playback. Forget this then. There's
- // still a bug in XM playback though, and it'll need some investigation...
- // tomorrow...
-
- // UPDATE: IT_COMPATIBLE_GXX is required to be on, so that tone porta has
- // separate memory from portamento.
-
- if (flags & XM_LINEAR_FREQUENCY)
- sigdata->flags |= IT_LINEAR_SLIDES;
-
- sigdata->global_volume = 128;
- sigdata->mixing_volume = 48;
- sigdata->pan_separation = 128;
-
- memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
- memset(sigdata->channel_pan, 32, DUMB_IT_N_CHANNELS);
-
- _dumb_it_fix_invalid_orders(sigdata);
-
- return sigdata;
-}
-
-
-
-#if 0 // no fucking way, dude!
-
-/* The length returned is the time required to play from the beginning of the
- * file to the last row of the last order (which is when the player will
- * loop). Depending on the song, the sound might stop sooner.
- * Due to fixed point roundoffs, I think this is only reliable to the second.
- * Full precision could be achieved by using a double during the computation,
- * or maybe a LONG_LONG.
- */
-long it_compute_length(const DUMB_IT_SIGDATA *sigdata)
-{- IT_PATTERN *pattern;
- int tempo, speed;
- int loop_start[IT_N_CHANNELS];
- char loop_count[IT_N_CHANNELS];
- int order, entry;
- int row_first_entry = 0;
- int jump, jump_dest;
- int delay, fine_delay;
- int i;
- long t;
-
- if (!sigdata)
- return 0;
-
- tempo = sigdata->tempo;
- speed = sigdata->speed;
- order = entry = 0;
- jump = jump_dest = 0;
- t = 0;
-
- /* for each PATTERN */
- for (order = 0; order < sigdata->n_orders; order++) {-
- if (sigdata->order[order] == IT_ORDER_END) break;
- if (sigdata->order[order] == IT_ORDER_SKIP) continue;
-
- for (i = 0; i < IT_N_CHANNELS; i++)
- loop_count[i] = -1;
-
- pattern = &sigdata->pattern[ sigdata->order[order] ];
- entry = 0;
- if (jump == IT_BREAK_TO_ROW) {- int row = 0;
- while (row < jump_dest)
- if (pattern->entry[entry++].channel >= IT_N_CHANNELS)
- row++;
- }
-
- /* for each ROW */
- while (entry < pattern->n_entries) {- row_first_entry = entry;
- delay = fine_delay = 0;
- jump = 0;
-
- /* for each note NOTE */
- while (entry < pattern->n_entries && pattern->entry[entry].channel < IT_N_CHANNELS) {- int value = pattern->entry[entry].effectvalue;
- int channel = pattern->entry[entry].channel;
-
- switch (pattern->entry[entry].effect) {-
- case IT_SET_SPEED: speed = value; break;
-
- case IT_JUMP_TO_ORDER:
- if (value <= order) /* infinite loop */
- return 0;
- jump = IT_JUMP_TO_ORDER;
- jump_dest = value;
- break;
-
- case IT_BREAK_TO_ROW:
- jump = IT_BREAK_TO_ROW;
- jump_dest = value;
- break;
-
- case IT_S:
- switch (HIGH(value)) {- case IT_S_PATTERN_DELAY: delay = LOW(value); break;
- case IT_S_FINE_PATTERN_DELAY: fine_delay = LOW(value); break;
- case IT_S_PATTERN_LOOP:
- if (LOW(value) == 0) {- loop_start[channel] = row_first_entry;
- } else {- if (loop_count[channel] == -1)
- loop_count[channel] = LOW(value);
-
- if (loop_count[channel]) {- jump = IT_S_PATTERN_LOOP;
- jump_dest = loop_start[channel];
- }
- loop_count[channel]--;
- }
- break;
- }
- break;
-
- case IT_SET_SONG_TEMPO:
- switch (HIGH(value)) { /* slides happen every non-row frames */- case 0: tempo = tempo - LOW(value)*(speed-1); break;
- case 1: tempo = tempo + LOW(value)*(speed-1); break;
- default: tempo = value;
- }
- tempo = MID(32, tempo, 255);
- break;
- }
-
- entry++;
- }
-
- /* end of ROW */
- entry++;
- t += TICK_TIME_DIVIDEND * (speed*(1+delay) + fine_delay) / tempo;
-
- if (jump == IT_JUMP_TO_ORDER) {- order = jump_dest - 1;
- break;
- } else if (jump == IT_BREAK_TO_ROW)
- break;
- else if (jump == IT_S_PATTERN_LOOP)
- entry = jump_dest - 1;
- }
-
- /* end of PATTERN */
- }
-
- return t;
-}
-
-#endif /* 0 */
-
-
-static char hexdigit(int in)
-{- if (in < 10) return in + '0';
- else return in + 'A' - 10;
-}
-
-DUH *dumb_read_xm_quick(DUMBFILE *f)
-{- sigdata_t *sigdata;
- int ver;
-
- DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
-
- sigdata = it_xm_load_sigdata(f, &ver);
-
- if (!sigdata)
- return NULL;
-
- {- char version[16];
- const char *tag[2][2];
- tag[0][0] = "TITLE";
- tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
- tag[1][0] = "FORMAT";
- version[0] = 'X';
- version[1] = 'M';
- version[2] = ' ';
- version[3] = 'v';
- version[4] = hexdigit( ( ver >> 8 ) & 15 );
- version[5] = '.';
- version[6] = hexdigit( ( ver >> 4 ) & 15 );
- version[7] = hexdigit( ver & 15 );
- version[8] = 0;
- tag[1][1] = ( const char * ) & version;
- return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
- }
-}
--- a/dumb/src/it/readxm2.c
+++ /dev/null
@@ -1,29 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * readxm2.c - Function to read a Fast Tracker II / / \ \
- * module from an open file and do an | < / \_
- * initial run-through. | \/ /\ /
- * \_ / > /
- * Split off from readxm.c by entheh. | \ / /
- * | ' /
- * \__/
- */
-
-#include "dumb.h"
-
-
-
-DUH *dumb_read_xm(DUMBFILE *f)
-{- DUH *duh = dumb_read_xm_quick(f);
- dumb_it_do_initial_runthrough(duh);
- return duh;
-}
--- a/dumb/src/it/xmeffect.c
+++ /dev/null
@@ -1,245 +1,0 @@
-/* _______ ____ __ ___ ___
- * \ _ \ \ / \ / \ \ / / ' ' '
- * | | \ \ | | || | \/ | . .
- * | | | | | | || ||\ /| |
- * | | | | | | || || \/ | | ' ' '
- * | | | | | | || || | | . .
- * | |_/ / \ \__// || | |
- * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
- * / \
- * / . \
- * xmeffect.c - Code for converting MOD/XM / / \ \
- * effects to IT effects. | < / \_
- * | \/ /\ /
- * By Julien Cugniere. Ripped out of readxm.c \_ / > /
- * by entheh. | \ / /
- * | ' /
- * \__/
- */
-
-
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "dumb.h"
-#include "internal/it.h"
-
-#if 0
-unsigned char **_dumb_malloc2(int w, int h)
-{- unsigned char **line = malloc(h * sizeof(*line));
- int i;
- if (!line) return NULL;
-
- line[0] = malloc(w * h * sizeof(*line[0]));
- if (!line[0]) {- free(line);
- return NULL;
- }
-
- for (i = 1; i < h; i++)
- line[i] = line[i-1] + w;
-
- memset(line[0], 0, w*h);
-
- return line;
-}
-
-
-
-void _dumb_free2(unsigned char **line)
-{- if (line) {- if (line[0])
- free(line[0]);
- free(line);
- }
-}
-
-
-
-/* Effects having a memory. 2 means that the two parts of the effectvalue
- * should be handled separately.
- */
-static const char xm_has_memory[] = {-/* 0 1 2 3 4 5 6 7 8 9 A B C D (E) F G H K L P R T (X) */
- 0, 1, 1, 1, 2, 1, 1, 2, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0,
-
-/* E0 E1 E2 E3 E4 E5 E6 E7 E9 EA EB EC ED EE X1 X2 */
- 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-};
-#endif
-
-
-
-/* Effects marked with 'special' are handled specifically in itrender.c */
-void _dumb_it_xm_convert_effect(int effect, int value, IT_ENTRY *entry, int mod)
-{-const int log = 0;
-
- if ((!effect && !value) || (effect >= XM_N_EFFECTS))
- return;
-
-if (log) printf("%c%02X", (effect<10)?('0'+effect):('A'+effect-10), value);-
- /* Linearisation of the effect number... */
- if (effect == XM_E) {- effect = EBASE + HIGH(value);
- value = LOW(value);
- } else if (effect == XM_X) {- effect = XBASE + HIGH(value);
- value = LOW(value);
- }
-
-if (log) printf(" - %2d %02X", effect, value);-
-#if 0 // This should be handled in itrender.c!
- /* update effect memory */
- switch (xm_has_memory[effect]) {- case 1:
- if (!value)
- value = memory[entry->channel][effect];
- else
- memory[entry->channel][effect] = value;
- break;
-
- case 2:
- if (!HIGH(value))
- SET_HIGH(value, HIGH(memory[entry->channel][effect]));
- else
- SET_HIGH(memory[entry->channel][effect], HIGH(value));
-
- if (!LOW(value))
- SET_LOW(value, LOW(memory[entry->channel][effect]));
- else
- SET_LOW(memory[entry->channel][effect], LOW(value));
- break;
- }
-#endif
-
- /* convert effect */
- entry->mask |= IT_ENTRY_EFFECT;
- switch (effect) {-
- case XM_APPREGIO: effect = IT_ARPEGGIO; break;
- case XM_VIBRATO: effect = IT_VIBRATO; break;
- case XM_TONE_PORTAMENTO: effect = IT_TONE_PORTAMENTO; break;
- case XM_TREMOLO: effect = IT_TREMOLO; break;
- case XM_SET_PANNING: effect = IT_SET_PANNING; break;
- case XM_SAMPLE_OFFSET: effect = IT_SET_SAMPLE_OFFSET; break;
- case XM_POSITION_JUMP: effect = IT_JUMP_TO_ORDER; break;
- case XM_MULTI_RETRIG: effect = IT_RETRIGGER_NOTE; break;
- case XM_TREMOR: effect = IT_TREMOR; break;
- case XM_PORTAMENTO_UP: effect = IT_XM_PORTAMENTO_UP; break;
- case XM_PORTAMENTO_DOWN: effect = IT_XM_PORTAMENTO_DOWN; break;
- case XM_SET_CHANNEL_VOLUME: effect = IT_SET_CHANNEL_VOLUME; break; /* special */
- case XM_VOLSLIDE_TONEPORTA: effect = IT_VOLSLIDE_TONEPORTA; break; /* special */
- case XM_VOLSLIDE_VIBRATO: effect = IT_VOLSLIDE_VIBRATO; break; /* special */
-
- case XM_PATTERN_BREAK:
- effect = IT_BREAK_TO_ROW;
- value = BCD_TO_NORMAL(value);
- if (value > 63) value = 0; /* FT2, maybe ProTracker? */
- break;
-
- case XM_VOLUME_SLIDE: /* special */
- effect = IT_VOLUME_SLIDE;
- value = HIGH(value) ? EFFECT_VALUE(HIGH(value), 0) : EFFECT_VALUE(0, LOW(value));
- break;
-
- case XM_PANNING_SLIDE:
- effect = IT_PANNING_SLIDE;
- //value = HIGH(value) ? EFFECT_VALUE(HIGH(value), 0) : EFFECT_VALUE(0, LOW(value));
- value = HIGH(value) ? EFFECT_VALUE(0, HIGH(value)) : EFFECT_VALUE(LOW(value), 0);
- break;
-
- case XM_GLOBAL_VOLUME_SLIDE: /* special */
- effect = IT_GLOBAL_VOLUME_SLIDE;
- value = HIGH(value) ? EFFECT_VALUE(HIGH(value), 0) : EFFECT_VALUE(0, LOW(value));
- break;
-
- case XM_SET_TEMPO_BPM:
- if (mod) effect = (value <= 0x20) ? (IT_SET_SPEED) : (IT_SET_SONG_TEMPO);
- else effect = (value < 0x20) ? (IT_SET_SPEED) : (IT_SET_SONG_TEMPO);
- break;
-
- case XM_SET_GLOBAL_VOLUME:
- effect = IT_SET_GLOBAL_VOLUME;
- value *= 2;
- if (value > 128) value = 128;
- break;
-
- case XM_KEY_OFF:
- effect = IT_XM_KEY_OFF;
- break;
-
- case XM_SET_ENVELOPE_POSITION:
- effect = IT_XM_SET_ENVELOPE_POSITION;
- break;
-
- case EBASE+XM_E_SET_FILTER: effect = SBASE+IT_S_SET_FILTER; break;
- case EBASE+XM_E_SET_GLISSANDO_CONTROL: effect = SBASE+IT_S_SET_GLISSANDO_CONTROL; break; /** TODO */
- case EBASE+XM_E_SET_FINETUNE: effect = SBASE+IT_S_FINETUNE; break;
- case EBASE+XM_E_SET_LOOP: effect = SBASE+IT_S_PATTERN_LOOP; break;
- case EBASE+XM_E_NOTE_CUT: effect = SBASE+IT_S_DELAYED_NOTE_CUT; break;
- case EBASE+XM_E_NOTE_DELAY: effect = SBASE+IT_S_NOTE_DELAY; break;
- case EBASE+XM_E_PATTERN_DELAY: effect = SBASE+IT_S_PATTERN_DELAY; break;
- case EBASE+XM_E_SET_PANNING: effect = SBASE+IT_S_SET_PAN; break;
- case EBASE+XM_E_FINE_VOLSLIDE_UP: effect = IT_XM_FINE_VOLSLIDE_UP; break;
- case EBASE+XM_E_FINE_VOLSLIDE_DOWN: effect = IT_XM_FINE_VOLSLIDE_DOWN; break;
- case EBASE+XM_E_SET_MIDI_MACRO: effect = SBASE+IT_S_SET_MIDI_MACRO; break;
-
- case EBASE + XM_E_FINE_PORTA_UP:
- effect = IT_PORTAMENTO_UP;
- value = EFFECT_VALUE(0xF, value);
- break;
-
- case EBASE + XM_E_FINE_PORTA_DOWN:
- effect = IT_PORTAMENTO_DOWN;
- value = EFFECT_VALUE(0xF, value);
- break;
-
- case EBASE + XM_E_RETRIG_NOTE:
- effect = IT_XM_RETRIGGER_NOTE;
- value = EFFECT_VALUE(0, value);
- break;
-
- case EBASE + XM_E_SET_VIBRATO_CONTROL:
- effect = SBASE+IT_S_SET_VIBRATO_WAVEFORM;
- value &= ~4;
- break;
-
- case EBASE + XM_E_SET_TREMOLO_CONTROL:
- effect = SBASE+IT_S_SET_TREMOLO_WAVEFORM;
- value &= ~4;
- break;
-
- case XBASE + XM_X_EXTRAFINE_PORTA_UP:
- effect = IT_PORTAMENTO_UP;
- value = EFFECT_VALUE(0xE, value);
- break;
-
- case XBASE + XM_X_EXTRAFINE_PORTA_DOWN:
- effect = IT_PORTAMENTO_DOWN;
- value = EFFECT_VALUE(0xE, value);
- break;
-
- default:
- /* user effect (often used in demos for synchronisation) */
- entry->mask &= ~IT_ENTRY_EFFECT;
- }
-
-if (log) printf(" - %2d %02X", effect, value);-
- /* Inverse linearisation... */
- if (effect >= SBASE && effect < SBASE+16) {- value = EFFECT_VALUE(effect-SBASE, value);
- effect = IT_S;
- }
-
-if (log) printf(" - %c%02X\n", 'A'+effect-1, value);-
- entry->effect = effect;
- entry->effectvalue = value;
-}
--- a/dumb/vc6/dumb/.gitignore
+++ /dev/null
@@ -1,3 +1,0 @@
-*.user
-Debug
-Release
\ No newline at end of file
--- a/dumb/vc6/dumb/dumb.vcproj
+++ /dev/null
@@ -1,2007 +1,0 @@
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- ProjectType="Visual C++"
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- OutputDirectory="$(ConfigurationName)"
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- EnableFunctionLevelLinking="true"
- PrecompiledHeaderFile="$(IntDir)\$(ProjectName).pch"
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\ No newline at end of file
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+++ /dev/null
@@ -1,332 +1,0 @@
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\ No newline at end of file
--- /dev/null
+++ b/examples/dumbout.c
@@ -1,0 +1,275 @@
+#include <argtable2.h>
+#include <dumb.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdbool.h>
+#include <math.h>
+
+static const int endian_test = 1;
+#define is_bigendian() ((*(char*)&endian_test) == 0)
+
+enum ENDIANNESS {+ DUMB_LITTLE_ENDIAN = 0,
+ DUMB_BIG_ENDIAN
+};
+
+typedef struct {+ DUH_SIGRENDERER *renderer;
+ DUH *src;
+ FILE *dst;
+ float delta;
+ int bufsize;
+ bool is_stdout;
+} streamer_t;
+
+typedef struct {+ int bits;
+ int endianness;
+ int is_unsigned;
+ int freq;
+ int quality;
+ int n_channels;
+ float volume;
+ float delay;
+ const char *input;
+ char *output;
+} settings_t;
+
+
+int main(int argc, char *argv[]) {+ int retcode = 1;
+ int nerrors = 0;
+ streamer_t streamer;
+ settings_t settings;
+ memset(&streamer, 0, sizeof(streamer_t));
+ memset(&settings, 0, sizeof(settings_t));
+
+ // Defaults
+ settings.freq = 44100;
+ settings.n_channels = 2;
+ settings.bits = 16;
+ settings.endianness = DUMB_LITTLE_ENDIAN;
+ settings.is_unsigned = false;
+ settings.volume = 1.0f;
+ settings.delay = 0.0f;
+ settings.quality = DUMB_RQ_CUBIC;
+
+ // commandline argument parser options
+ struct arg_lit *arg_help = arg_lit0("h", "help", "print this help and exits");+ struct arg_dbl *arg_delay = arg_dbl0("d", "delay", "<delay>", "sets the initial delay in seconds (0.0 to 64.0, default 0.0)");+ struct arg_dbl *arg_volume = arg_dbl0("v", "volume", "<volume", "sets the output volume (-8.0 to +8.0, default 1.0)");+ struct arg_int *arg_samplerate = arg_int0("s", "samplerate", "<freq>", "sets the sampling rate (default 44100)");+ struct arg_int *arg_quality = arg_int0("r", "quality", "<quality>", "specify the resampling quality to use");+ struct arg_lit *arg_mono = arg_lit0("m", "mono", "generate mono output instead of stereo");+ struct arg_lit *arg_bigendian = arg_lit0("b", "bigendian", "generate big-endian data instead of little-endian");+ struct arg_lit *arg_eight = arg_lit0("8", "eight", "generate 8-bit instead of 16-bit");+ struct arg_lit *arg_unsigned = arg_lit0("u", "unsigned", "generate unsigned output instead of signed");+ struct arg_file *arg_output = arg_file0("o", "output", "<file>", "output file");+ struct arg_file *arg_input = arg_file1(NULL, NULL, "<file>", "input module file");
+ struct arg_end *arg_fend = arg_end(20);
+ void* argtable[] = {arg_help, arg_input, arg_output, arg_delay, arg_volume, arg_samplerate, arg_quality,+ arg_mono, arg_bigendian, arg_eight, arg_unsigned, arg_fend};
+ const char* progname = "dumbout";
+
+ // Make sure everything got allocated
+ if(arg_nullcheck(argtable) != 0) {+ fprintf(stderr, "%s: insufficient memory\n", progname);
+ goto exit_0;
+ }
+
+ // Parse inputs
+ nerrors = arg_parse(argc, argv, argtable);
+
+ // Handle help
+ if(arg_help->count > 0) {+ fprintf(stderr, "Usage: %s", progname);
+ arg_print_syntax(stderr, argtable, "\n");
+ fprintf(stderr, "\nArguments:\n");
+ arg_print_glossary(stderr, argtable, "%-25s %s\n");
+ goto exit_0;
+ }
+
+ // Handle errors
+ if(nerrors > 0) {+ arg_print_errors(stderr, arg_fend, progname);
+ fprintf(stderr, "Try '%s --help' for more information.\n", progname);
+ goto exit_0;
+ }
+
+ // Get input and output filenames
+ settings.input = arg_input->filename[0];
+ if(arg_output->count > 0) {+ settings.output = malloc(strlen(arg_output->filename[0])+1);
+ strcpy(settings.output, arg_output->filename[0]);
+ } else {+ settings.output = malloc(strlen(arg_output->basename[0])+5);
+ sprintf(settings.output, "%s%s", arg_output->basename[0], ".pcm");
+ }
+
+ // Handle the switch options
+ if(arg_bigendian->count > 0) { settings.endianness = DUMB_BIG_ENDIAN; }+ if(arg_eight->count > 0) { settings.bits = 8; }+ if(arg_unsigned->count > 0) { settings.is_unsigned = true; }+ if(arg_mono->count > 0) { settings.n_channels = 1; }+
+ if(arg_delay->count > 0) {+ settings.delay = arg_delay->dval[0];
+ if(settings.delay < 0.0f || settings.delay >= 64.0f) {+ fprintf(stderr, "Initial delay must be between 0.0f and 64.0f.\n");
+ goto exit_0;
+ }
+ }
+
+ if(arg_volume->count > 0) {+ settings.volume = arg_volume->dval[0];
+ if(settings.volume < -8.0f || settings.volume > 8.0f) {+ fprintf(stderr, "Volume must be between -8.0f and 8.0f.\n");
+ goto exit_0;
+ }
+ }
+
+ if(arg_samplerate->count > 0) {+ settings.freq = arg_samplerate->ival[0];
+ if(settings.freq < 1 || settings.freq > 96000) {+ fprintf(stderr, "Sampling rate must be between 1 and 96000.\n");
+ goto exit_0;
+ }
+ }
+
+ if(arg_quality->count > 0) {+ settings.quality = arg_quality->ival[0];
+ if(settings.quality < 0 || settings.quality >= DUMB_RQ_N_LEVELS) {+ fprintf(stderr, "Quality must be between %d and %d.\n", 0, DUMB_RQ_N_LEVELS-1);
+ goto exit_0;
+ }
+ }
+
+ // dumb settings stuff
+ dumb_register_stdfiles();
+
+ // Load source
+ streamer.src = dumb_load_any(settings.input, 0, 0);
+ if(!streamer.src) {+ fprintf(stderr, "Unable to load file %s for playback!\n", settings.input);
+ goto exit_0;
+ }
+
+ // Set up playback
+ streamer.renderer = duh_start_sigrenderer(streamer.src, 0, settings.n_channels, 0);
+ streamer.delta = 65536.0f / settings.freq;
+ streamer.bufsize = 4096 * (settings.bits / 8) * settings.n_channels;
+
+ // Stop producing samples on module end
+ DUMB_IT_SIGRENDERER *itsr = duh_get_it_sigrenderer(streamer.renderer);
+ dumb_it_set_loop_callback(itsr, &dumb_it_callback_terminate, NULL);
+ dumb_it_set_xm_speed_zero_callback(itsr, &dumb_it_callback_terminate, NULL);
+ dumb_it_set_resampling_quality(itsr, settings.quality);
+
+ // Open output
+ if(strcmp(settings.output, "-") == 0) {+ streamer.dst = stdout;
+ streamer.is_stdout = true;
+ } else {+ streamer.dst = fopen(settings.output, "wb");
+ streamer.is_stdout = false;
+ if(!streamer.dst) {+ fprintf(stderr, "Could not open output file %s!", settings.output);
+ goto exit_1;
+ }
+ }
+
+ bool run = true;
+ char *buffer = malloc(streamer.bufsize);
+ int read_samples;
+ int read_bytes;
+
+ // If output endianness is different than machine endianness, and output is 16 bits, reorder bytes.
+ int switch_endianness = ((is_bigendian() && settings.endianness == DUMB_LITTLE_ENDIAN) ||
+ (!is_bigendian() && settings.endianness == DUMB_BIG_ENDIAN));
+
+ // Write the initial delay to the file if one was requested.
+ long d = ((long)floor(settings.delay * settings.freq + 0.5f)) * settings.n_channels * (settings.bits / 8);
+ if(d) {+ // Fill the buffer with silence. Remember to take into account endianness
+ if(settings.is_unsigned) {+ if(settings.bits == 16) {+ if(settings.endianness == DUMB_BIG_ENDIAN) {+ // Unsigned 16bits big endian
+ for(int i = 0; i < streamer.bufsize; i += 2) {+ buffer[i ] = (char)0x80;
+ buffer[i+1] = (char)0x00;
+ }
+ } else {+ // Unsigned 16bits little endian
+ for(int i = 0; i < streamer.bufsize; i += 2) {+ buffer[i ] = (char)0x00;
+ buffer[i+1] = (char)0x80;
+ }
+ }
+ } else {+ // Unsigned 8 bits
+ memset(buffer, 0x80, streamer.bufsize);
+ }
+ } else {+ // Signed
+ memset(buffer, 0, streamer.bufsize);
+ }
+
+ while(d >= streamer.bufsize) {+ fwrite(buffer, 1, streamer.bufsize, streamer.dst);
+ d -= streamer.bufsize;
+ }
+ if(d) {+ fwrite(buffer, 1, d, streamer.dst);
+ }
+ }
+
+ // Loop until we have nothing to loop through. Dumb will stop giving out bytes when the file is done.
+ while(run) {+ read_samples = duh_render(streamer.renderer,
+ settings.bits,
+ (int)settings.is_unsigned,
+ settings.volume,
+ streamer.delta,
+ 4096, buffer);
+ read_bytes = read_samples * (settings.bits / 8) * settings.n_channels;
+
+ // switch endianness if required
+ if(switch_endianness && settings.bits == 16) {+ char tmp;
+ for(int i = 0; i < read_bytes / 2; i++) {+ tmp = buffer[i*2+0];
+ buffer[i*2+0] = buffer[i*2+1];
+ buffer[i*2+1] = tmp;
+ }
+ }
+
+ // Write to output stream and flush if it happens to be stdout
+ fwrite(buffer, 1, read_bytes, streamer.dst);
+ if(streamer.is_stdout) {+ fflush(streamer.dst);
+ }
+ run = (read_samples > 0);
+ }
+ free(buffer);
+
+ // We made it this far without crashing, so let's just exit with no error :)
+ retcode = 0;
+
+ if(!streamer.is_stdout && streamer.dst) {+ fclose(streamer.dst);
+ }
+
+exit_1:
+ if(streamer.renderer) {+ duh_end_sigrenderer(streamer.renderer);
+ }
+ if(streamer.src) {+ unload_duh(streamer.src);
+ }
+
+exit_0:
+ free(settings.output);
+ arg_freetable(argtable, sizeof(argtable)/sizeof(argtable[0]));
+ return retcode;
+}
--- /dev/null
+++ b/examples/dumbplay.c
@@ -1,0 +1,284 @@
+#include <argtable2.h>
+#include <dumb.h>
+#include <stdint.h>
+#include <string.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <SDL2/SDL.h>
+
+// How many samples we should handle per callback call
+#define SAMPLES 8192
+
+// How many chars wide the progress bar is
+#define PROGRESSBAR_LENGTH 25
+
+typedef struct {+ // Library contexts
+ DUH_SIGRENDERER *renderer;
+ DUH *src;
+ SDL_AudioDeviceID dev;
+
+ // Runtime vars
+ float delta;
+ int spos; // Samples read
+ int ssize; // Total samples available
+ int sbytes; // bytes per sample
+ bool ended;
+
+ // Config switches
+ int bits;
+ int freq;
+ int quality;
+ int n_channels;
+ bool no_progress;
+ float volume;
+ const char *input;
+} streamer_t;
+
+// Set to true if SIGTERM or SIGINT is caught
+static bool stop_signal = false;
+
+// Simple signal handler function
+static void sig_fn(int signo) {+ stop_signal = true;
+}
+
+// This is called from SDL2, and should read data from a source and hand it over to SDL2 via the stream buffer.
+void stream_audio(void* userdata, Uint8* stream, int len) {+ streamer_t *streamer = (streamer_t*)userdata;
+
+ // Read samples from libdumb save them to the SDL buffer. Note that we are reading SAMPLES, not bytes!
+ int r_samples = len / streamer->sbytes;
+ int got = duh_render(streamer->renderer, streamer->bits, 0, streamer->volume, streamer->delta, r_samples, stream);
+ if(got == 0) {+ streamer->ended = true;
+ }
+
+ // Get current position from libdumb for the playback display. If we get position that is 0, it probably
+ // means that the song ended and duh_sigrenderer_get_position points to the start of the file.
+ streamer->spos = duh_sigrenderer_get_position(streamer->renderer);
+ if(streamer->spos == 0) {+ streamer->spos = streamer->ssize;
+ }
+}
+
+// Simply formats timestamp to string
+void format_ms(int ticks) {+ int total_seconds = ticks / 1000;
+ int hours = 0;
+ int minutes = 0;
+ int seconds = 0;
+
+ // Calculate hours, minutes and seconds
+ if(total_seconds > 3600) {+ hours = total_seconds / 3600;
+ total_seconds = total_seconds % 3600;
+ }
+ if(total_seconds > 60) {+ minutes = total_seconds / 60;
+ total_seconds = total_seconds % 60;
+ }
+ seconds = total_seconds;
+
+ // If necessary, show hours. Otherwise only minutes and seconds.
+ if(hours > 0) {+ printf("%02d:%02d:%02d", hours, minutes, seconds);+ } else {+ printf("%02d:%02d", minutes, seconds);+ }
+}
+
+// Shows progressbar and time played
+void show_progress(int width, float progress, int ticks) {+ int d = progress * width;
+ printf("%3d%% [", (int)(progress*100));+ for(int x = 0; x < d; x++) {+ printf("=");+ }
+ for(int x = 0; x < (width-d); x++) {+ printf(" ");+ }
+ printf("] ");+ format_ms(ticks);
+ printf("\r");+ fflush(stdout);
+}
+
+int main(int argc, char *argv[]) {+ int retcode = 1;
+ int nerrors = 0;
+ streamer_t streamer;
+ memset(&streamer, 0, sizeof(streamer_t));
+
+ // Signal handlers
+ signal(SIGINT, sig_fn);
+ signal(SIGTERM, sig_fn);
+
+ // Initialize SDL2
+ if(SDL_Init(SDL_INIT_AUDIO) != 0) {+ fprintf(stderr, "%s\n", SDL_GetError());
+ return 1;
+ }
+
+ // Defaults
+ streamer.freq = 44100;
+ streamer.n_channels = 2;
+ streamer.bits = 16;
+ streamer.volume = 1.0f;
+ streamer.quality = DUMB_RQ_CUBIC;
+
+ // commandline argument parser options
+ struct arg_lit *arg_help = arg_lit0("h", "help", "print this help and exits");+ struct arg_dbl *arg_volume = arg_dbl0("v", "volume", "<volume", "sets the output volume (-8.0 to +8.0, default 1.0)");+ struct arg_int *arg_samplerate = arg_int0("s", "samplerate", "<freq>", "sets the sampling rate (default 44100)");+ struct arg_int *arg_quality = arg_int0("r", "quality", "<quality>", "specify the resampling quality to use");+ struct arg_lit *arg_mono = arg_lit0("m", "mono", "generate mono output instead of stereo");+ struct arg_lit *arg_eight = arg_lit0("8", "eight", "generate 8-bit instead of 16-bit");+ struct arg_lit *arg_noprogress = arg_lit0("n", "noprogress", "hide progress bar");+ struct arg_file *arg_output = arg_file0("o", "output", "<file>", "output file");+ struct arg_file *arg_input = arg_file1(NULL, NULL, "<file>", "input module file");
+ struct arg_end *arg_fend = arg_end(20);
+ void* argtable[] = {arg_help, arg_input, arg_volume, arg_samplerate, arg_quality, arg_mono, arg_eight, arg_noprogress, arg_fend};+ const char* progname = "dumbplay";
+
+ // Make sure everything got allocated
+ if(arg_nullcheck(argtable) != 0) {+ fprintf(stderr, "%s: insufficient memory\n", progname);
+ goto exit_0;
+ }
+
+ // Parse inputs
+ nerrors = arg_parse(argc, argv, argtable);
+
+ // Handle help
+ if(arg_help->count > 0) {+ fprintf(stderr, "Usage: %s", progname);
+ arg_print_syntax(stderr, argtable, "\n");
+ fprintf(stderr, "\nArguments:\n");
+ arg_print_glossary(stderr, argtable, "%-25s %s\n");
+ goto exit_0;
+ }
+
+ // Handle libargtable errors
+ if(nerrors > 0) {+ arg_print_errors(stderr, arg_fend, progname);
+ fprintf(stderr, "Try '%s --help' for more information.\n", progname);
+ goto exit_0;
+ }
+
+ // Handle the switch options
+ streamer.input = arg_input->filename[0];
+ if(arg_eight->count > 0) { streamer.bits = 8; }+ if(arg_mono->count > 0) { streamer.n_channels = 1; }+ if(arg_noprogress->count > 0) { streamer.no_progress = true; }+
+ if(arg_volume->count > 0) {+ streamer.volume = arg_volume->dval[0];
+ if(streamer.volume < -8.0f || streamer.volume > 8.0f) {+ fprintf(stderr, "Volume must be between -8.0f and 8.0f.\n");
+ goto exit_0;
+ }
+ }
+
+ if(arg_samplerate->count > 0) {+ streamer.freq = arg_samplerate->ival[0];
+ if(streamer.freq < 1 || streamer.freq > 96000) {+ fprintf(stderr, "Sampling rate must be between 1 and 96000.\n");
+ goto exit_0;
+ }
+ }
+
+ if(arg_quality->count > 0) {+ streamer.quality = arg_quality->ival[0];
+ if(streamer.quality < 0 || streamer.quality >= DUMB_RQ_N_LEVELS) {+ fprintf(stderr, "Quality must be between %d and %d.\n", 0, DUMB_RQ_N_LEVELS-1);
+ goto exit_0;
+ }
+ }
+
+ // Load source file.
+ dumb_register_stdfiles();
+ streamer.src = dumb_load_any(streamer.input, 0, 0);
+ if(!streamer.src) {+ fprintf(stderr, "Unable to load file %s for playback!\n", streamer.input);
+ goto exit_0;
+ }
+
+ // Set up playback
+ streamer.renderer = duh_start_sigrenderer(streamer.src, 0, streamer.n_channels, 0);
+ streamer.delta = 65536.0f / streamer.freq;
+ streamer.sbytes = (streamer.bits / 8) * streamer.n_channels;
+ streamer.ssize = duh_get_length(streamer.src);
+
+ // Stop producing samples on module end
+ DUMB_IT_SIGRENDERER *itsr = duh_get_it_sigrenderer(streamer.renderer);
+ dumb_it_set_loop_callback(itsr, &dumb_it_callback_terminate, NULL);
+ dumb_it_set_xm_speed_zero_callback(itsr, &dumb_it_callback_terminate, NULL);
+ dumb_it_set_resampling_quality(itsr, streamer.quality);
+
+ // Set up the SDL2 format we want for playback.
+ SDL_AudioSpec want;
+ SDL_zero(want);
+ want.freq = streamer.freq;
+ want.format = (streamer.bits == 16) ? AUDIO_S16 : AUDIO_S8;
+ want.channels = streamer.n_channels;
+ want.samples = SAMPLES;
+ want.callback = stream_audio;
+ want.userdata = &streamer;
+
+ // Find SDL2 audio device, and request the format we just set up.
+ // SDL2 will tell us what we got in the "have" struct.
+ SDL_AudioSpec have;
+ streamer.dev = SDL_OpenAudioDevice(NULL, 0, &want, &have, 0);
+ if(streamer.dev == 0) {+ fprintf(stderr, "%s\n", SDL_GetError());
+ goto exit_1;
+ }
+
+ // Make sure we got the format we wanted. If not, stop here.
+ if(have.format != want.format) {+ fprintf(stderr, "Could not get correct playback format.\n");
+ goto exit_2;
+ }
+
+ // Play file
+ SDL_PauseAudioDevice(streamer.dev, 0);
+
+ // Show initial state of the progress bar (if it is enabled)
+ int time_start = SDL_GetTicks();
+ float seek = 0.0f;
+ int ms_played = 0;
+ if(!streamer.no_progress) {+ show_progress(PROGRESSBAR_LENGTH, seek, ms_played);
+ }
+
+ // Loop while dumb is still giving data. Update progressbar if enabled.
+ while(!stop_signal && !streamer.ended) {+ if(!streamer.no_progress) {+ seek = ((float)streamer.spos) / ((float)streamer.ssize);
+ ms_played = SDL_GetTicks() - time_start;
+ show_progress(PROGRESSBAR_LENGTH, seek, ms_played);
+ }
+ SDL_Delay(100);
+ }
+
+ // We made it this far without crashing, so let's just exit with no error :)
+ retcode = 0;
+
+ // Free up resources and exit.
+exit_2:
+ SDL_CloseAudioDevice(streamer.dev);
+
+exit_1:
+ if(streamer.renderer) {+ duh_end_sigrenderer(streamer.renderer);
+ }
+ if(streamer.src) {+ unload_duh(streamer.src);
+ }
+
+exit_0:
+ arg_freetable(argtable, sizeof(argtable)/sizeof(argtable[0]));
+ SDL_Quit();
+ return retcode;
+}
--- /dev/null
+++ b/include/dumb.h
@@ -1,0 +1,824 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * dumb.h - The user header file for DUMB. / / \ \
+ * | < / \_
+ * Include this file in any of your files in | \/ /\ /
+ * which you wish to use the DUMB functions \_ / > /
+ * and variables. | \ / /
+ * | ' /
+ * Allegro users, you will probably want aldumb.h. \__/
+ */
+
+#ifndef DUMB_H
+#define DUMB_H
+
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#ifdef _DEBUG
+#ifdef _MSC_VER
+#define _CRTDBG_MAP_ALLOC
+#include <crtdbg.h>
+#endif
+#endif
+
+#ifdef __cplusplus
+ extern "C" {+#endif
+
+
+#define DUMB_MAJOR_VERSION 1
+#define DUMB_MINOR_VERSION 0
+#define DUMB_REVISION_VERSION 0
+
+#define DUMB_VERSION (DUMB_MAJOR_VERSION*10000 + DUMB_MINOR_VERSION*100 + DUMB_REVISION_VERSION)
+
+#define DUMB_VERSION_STR "1.0.0"
+
+#define DUMB_NAME "DUMB v" DUMB_VERSION_STR
+
+#define DUMB_YEAR 2015
+#define DUMB_MONTH 1
+#define DUMB_DAY 17
+
+#define DUMB_YEAR_STR2 "15"
+#define DUMB_YEAR_STR4 "2015"
+#define DUMB_MONTH_STR1 "1"
+#define DUMB_DAY_STR1 "17"
+
+#if DUMB_MONTH < 10
+#define DUMB_MONTH_STR2 "0" DUMB_MONTH_STR1
+#else
+#define DUMB_MONTH_STR2 DUMB_MONTH_STR1
+#endif
+
+#if DUMB_DAY < 10
+#define DUMB_DAY_STR2 "0" DUMB_DAY_STR1
+#else
+#define DUMB_DAY_STR2 DUMB_DAY_STR1
+#endif
+
+
+/* WARNING: The month and day were inadvertently swapped in the v0.8 release.
+ * Please do not compare this constant against any date in 2002. In
+ * any case, DUMB_VERSION is probably more useful for this purpose.
+ */
+#define DUMB_DATE (DUMB_YEAR*10000 + DUMB_MONTH*100 + DUMB_DAY)
+
+#define DUMB_DATE_STR DUMB_DAY_STR1 "." DUMB_MONTH_STR1 "." DUMB_YEAR_STR4
+
+
+#undef MIN
+#undef MAX
+#undef MID
+
+#define MIN(x,y) (((x) < (y)) ? (x) : (y))
+#define MAX(x,y) (((x) > (y)) ? (x) : (y))
+#define MID(x,y,z) MAX((x), MIN((y), (z)))
+
+#undef ABS
+#define ABS(x) (((x) >= 0) ? (x) : (-(x)))
+
+
+#ifdef DEBUGMODE
+
+#ifndef ASSERT
+#include <assert.h>
+#define ASSERT(n) assert(n)
+#endif
+#ifndef TRACE
+// it would be nice if this did actually trace ...
+#define TRACE 1 ? (void)0 : (void)printf
+#endif
+
+#else
+
+#ifndef ASSERT
+#define ASSERT(n)
+#endif
+#ifndef TRACE
+#define TRACE 1 ? (void)0 : (void)printf
+#endif
+
+#endif
+
+
+#define DUMB_ID(a,b,c,d) (((unsigned int)(a) << 24) | \
+ ((unsigned int)(b) << 16) | \
+ ((unsigned int)(c) << 8) | \
+ ((unsigned int)(d) ))
+
+
+
+#ifndef LONG_LONG
+#if defined __GNUC__ || defined __INTEL_COMPILER || defined __MWERKS__
+#define LONG_LONG long long
+#elif defined _MSC_VER || defined __WATCOMC__
+#define LONG_LONG __int64
+#elif defined __sgi
+#define LONG_LONG long long
+#else
+#error 64-bit integer type unknown
+#endif
+#endif
+
+#if __GNUC__ * 100 + __GNUC_MINOR__ >= 301 /* GCC 3.1+ */
+#ifndef DUMB_DECLARE_DEPRECATED
+#define DUMB_DECLARE_DEPRECATED
+#endif
+#define DUMB_DEPRECATED __attribute__((__deprecated__))
+#else
+#define DUMB_DEPRECATED
+#endif
+
+
+/* Basic Sample Type. Normal range is -0x800000 to 0x7FFFFF. */
+
+typedef int sample_t;
+
+
+/* Library Clean-up Management */
+
+int dumb_atexit(void (*proc)(void));
+
+void dumb_exit(void);
+
+
+/* File Input Functions */
+
+typedef struct DUMBFILE_SYSTEM
+{+ void *(*open)(const char *filename);
+ int (*skip)(void *f, long n);
+ int (*getc)(void *f);
+ long (*getnc)(char *ptr, long n, void *f);
+ void (*close)(void *f);
+ int (*seek)(void *f, long n);
+ long (*get_size)(void *f);
+}
+DUMBFILE_SYSTEM;
+
+typedef struct DUMBFILE DUMBFILE;
+
+void register_dumbfile_system(const DUMBFILE_SYSTEM *dfs);
+
+DUMBFILE *dumbfile_open(const char *filename);
+DUMBFILE *dumbfile_open_ex(void *file, const DUMBFILE_SYSTEM *dfs);
+
+long dumbfile_pos(DUMBFILE *f);
+int dumbfile_skip(DUMBFILE *f, long n);
+
+#define DFS_SEEK_SET 0
+#define DFS_SEEK_CUR 1
+#define DFS_SEEK_END 2
+
+int dumbfile_seek(DUMBFILE *f, long n, int origin);
+
+long dumbfile_get_size(DUMBFILE *f);
+
+int dumbfile_getc(DUMBFILE *f);
+
+int dumbfile_igetw(DUMBFILE *f);
+int dumbfile_mgetw(DUMBFILE *f);
+
+long dumbfile_igetl(DUMBFILE *f);
+long dumbfile_mgetl(DUMBFILE *f);
+
+unsigned long dumbfile_cgetul(DUMBFILE *f);
+signed long dumbfile_cgetsl(DUMBFILE *f);
+
+long dumbfile_getnc(char *ptr, long n, DUMBFILE *f);
+
+int dumbfile_error(DUMBFILE *f);
+int dumbfile_close(DUMBFILE *f);
+
+
+/* stdio File Input Module */
+
+void dumb_register_stdfiles(void);
+
+DUMBFILE *dumbfile_open_stdfile(FILE *p);
+
+
+/* Memory File Input Module */
+
+DUMBFILE *dumbfile_open_memory(const char *data, long size);
+
+
+/* DUH Management */
+
+typedef struct DUH DUH;
+
+#define DUH_SIGNATURE DUMB_ID('D','U','H','!')+
+void unload_duh(DUH *duh);
+
+DUH *load_duh(const char *filename);
+DUH *read_duh(DUMBFILE *f);
+
+long duh_get_length(DUH *duh);
+
+const char *duh_get_tag(DUH *duh, const char *key);
+int duh_get_tag_iterator_size(DUH *duh);
+int duh_get_tag_iterator_get(DUH *duh, const char **key, const char **tag, int i);
+
+/* Signal Rendering Functions */
+
+typedef struct DUH_SIGRENDERER DUH_SIGRENDERER;
+
+DUH_SIGRENDERER *duh_start_sigrenderer(DUH *duh, int sig, int n_channels, long pos);
+
+#ifdef DUMB_DECLARE_DEPRECATED
+typedef void (*DUH_SIGRENDERER_CALLBACK)(void *data, sample_t **samples, int n_channels, long length);
+/* This is deprecated, but is not marked as such because GCC tends to
+ * complain spuriously when the typedef is used later. See comments below.
+ */
+
+void duh_sigrenderer_set_callback(
+ DUH_SIGRENDERER *sigrenderer,
+ DUH_SIGRENDERER_CALLBACK callback, void *data
+) DUMB_DEPRECATED;
+/* The 'callback' argument's type has changed for const-correctness. See the
+ * DUH_SIGRENDERER_CALLBACK definition just above. Also note that the samples
+ * in the buffer are now 256 times as large; the normal range is -0x800000 to
+ * 0x7FFFFF. The function has been renamed partly because its functionality
+ * has changed slightly and partly so that its name is more meaningful. The
+ * new one is duh_sigrenderer_set_analyser_callback(), and the typedef for
+ * the function pointer has also changed, from DUH_SIGRENDERER_CALLBACK to
+ * DUH_SIGRENDERER_ANALYSER_CALLBACK. (If you wanted to use this callback to
+ * apply a DSP effect, don't worry; there is a better way of doing this. It
+ * is undocumented, so contact me and I shall try to help. Contact details
+ * are in readme.txt.)
+ */
+
+typedef void (*DUH_SIGRENDERER_ANALYSER_CALLBACK)(void *data, const sample_t *const *samples, int n_channels, long length);
+/* This is deprecated, but is not marked as such because GCC tends to
+ * complain spuriously when the typedef is used later. See comments below.
+ */
+
+void duh_sigrenderer_set_analyser_callback(
+ DUH_SIGRENDERER *sigrenderer,
+ DUH_SIGRENDERER_ANALYSER_CALLBACK callback, void *data
+) DUMB_DEPRECATED;
+/* This is deprecated because the meaning of the 'samples' parameter in the
+ * callback needed to change. For stereo applications, the array used to be
+ * indexed with samples[channel][pos]. It is now indexed with
+ * samples[0][pos*2+channel]. Mono sample data are still indexed with
+ * samples[0][pos]. The array is still 2D because samples will probably only
+ * ever be interleaved in twos. In order to fix your code, adapt it to the
+ * new sample layout and then call
+ * duh_sigrenderer_set_sample_analyser_callback below instead of this
+ * function.
+ */
+#endif
+
+typedef void (*DUH_SIGRENDERER_SAMPLE_ANALYSER_CALLBACK)(void *data, const sample_t *const *samples, int n_channels, long length);
+
+void duh_sigrenderer_set_sample_analyser_callback(
+ DUH_SIGRENDERER *sigrenderer,
+ DUH_SIGRENDERER_SAMPLE_ANALYSER_CALLBACK callback, void *data
+);
+
+int duh_sigrenderer_get_n_channels(DUH_SIGRENDERER *sigrenderer);
+long duh_sigrenderer_get_position(DUH_SIGRENDERER *sigrenderer);
+
+void duh_sigrenderer_set_sigparam(DUH_SIGRENDERER *sigrenderer, unsigned char id, long value);
+
+#ifdef DUMB_DECLARE_DEPRECATED
+long duh_sigrenderer_get_samples(
+ DUH_SIGRENDERER *sigrenderer,
+ float volume, float delta,
+ long size, sample_t **samples
+) DUMB_DEPRECATED;
+/* The sample format has changed, so if you were using this function,
+ * you should switch to duh_sigrenderer_generate_samples() and change
+ * how you interpret the samples array. See the comments for
+ * duh_sigrenderer_set_analyser_callback().
+ */
+#endif
+
+long duh_sigrenderer_generate_samples(
+ DUH_SIGRENDERER *sigrenderer,
+ float volume, float delta,
+ long size, sample_t **samples
+);
+
+void duh_sigrenderer_get_current_sample(DUH_SIGRENDERER *sigrenderer, float volume, sample_t *samples);
+
+void duh_end_sigrenderer(DUH_SIGRENDERER *sigrenderer);
+
+
+/* DUH Rendering Functions */
+
+/* For packed integers: 8, 16, 24-bit wide.
+ * Intermediary buffer sig_samples must be freed with destroy_sample_buffer()
+ * in the end of the rendering loop.
+ */
+long duh_render_int(
+ DUH_SIGRENDERER *sigrenderer,
+ sample_t ***sig_samples,
+ long *sig_samples_size,
+ int bits, int unsign,
+ float volume, float delta,
+ long size, void *sptr
+);
+
+/* For floats: 32, 64-bit wide.
+ * Intermediary buffer sig_samples must be freed with destroy_sample_buffer()
+ * in the end of the rendering loop.
+ */
+long duh_render_float(
+ DUH_SIGRENDERER *sigrenderer,
+ sample_t ***sig_samples,
+ long *sig_samples_size,
+ int bits,
+ float volume, float delta,
+ long size, void *sptr
+);
+
+#ifdef DUMB_DECLARE_DEPRECATED
+
+long duh_render(
+ DUH_SIGRENDERER *sigrenderer,
+ int bits, int unsign,
+ float volume, float delta,
+ long size, void *sptr
+) DUMB_DEPRECATED;
+
+long duh_render_signal(
+ DUH_SIGRENDERER *sigrenderer,
+ float volume, float delta,
+ long size, sample_t **samples
+) DUMB_DEPRECATED;
+/* Please use duh_sigrenderer_generate_samples(), and see the
+ * comments for the deprecated duh_sigrenderer_get_samples() too.
+ */
+
+typedef DUH_SIGRENDERER DUH_RENDERER DUMB_DEPRECATED;
+/* Please use DUH_SIGRENDERER instead of DUH_RENDERER. */
+
+DUH_SIGRENDERER *duh_start_renderer(DUH *duh, int n_channels, long pos) DUMB_DEPRECATED;
+/* Please use duh_start_sigrenderer() instead. Pass 0 for 'sig'. */
+
+int duh_renderer_get_n_channels(DUH_SIGRENDERER *dr) DUMB_DEPRECATED;
+long duh_renderer_get_position(DUH_SIGRENDERER *dr) DUMB_DEPRECATED;
+/* Please use the duh_sigrenderer_*() equivalents of these two functions. */
+
+void duh_end_renderer(DUH_SIGRENDERER *dr) DUMB_DEPRECATED;
+/* Please use duh_end_sigrenderer() instead. */
+
+DUH_SIGRENDERER *duh_renderer_encapsulate_sigrenderer(DUH_SIGRENDERER *sigrenderer) DUMB_DEPRECATED;
+DUH_SIGRENDERER *duh_renderer_get_sigrenderer(DUH_SIGRENDERER *dr) DUMB_DEPRECATED;
+DUH_SIGRENDERER *duh_renderer_decompose_to_sigrenderer(DUH_SIGRENDERER *dr) DUMB_DEPRECATED;
+/* These functions have become no-ops that just return the parameter.
+ * So, for instance, replace
+ * duh_renderer_encapsulate_sigrenderer(my_sigrenderer)
+ * with
+ * my_sigrenderer
+ */
+
+#endif
+
+
+/* Impulse Tracker Support */
+
+extern int dumb_it_max_to_mix;
+
+typedef struct DUMB_IT_SIGDATA DUMB_IT_SIGDATA;
+typedef struct DUMB_IT_SIGRENDERER DUMB_IT_SIGRENDERER;
+
+DUMB_IT_SIGDATA *duh_get_it_sigdata(DUH *duh);
+DUH_SIGRENDERER *duh_encapsulate_it_sigrenderer(DUMB_IT_SIGRENDERER *it_sigrenderer, int n_channels, long pos);
+DUMB_IT_SIGRENDERER *duh_get_it_sigrenderer(DUH_SIGRENDERER *sigrenderer);
+
+int dumb_it_trim_silent_patterns(DUH * duh);
+
+typedef int (*dumb_scan_callback)(void *, int, long);
+int dumb_it_scan_for_playable_orders(DUMB_IT_SIGDATA *sigdata, dumb_scan_callback callback, void * callback_data);
+
+DUH_SIGRENDERER *dumb_it_start_at_order(DUH *duh, int n_channels, int startorder);
+
+enum
+{+ DUMB_IT_RAMP_NONE = 0,
+ DUMB_IT_RAMP_ONOFF_ONLY = 1,
+ DUMB_IT_RAMP_FULL = 2
+};
+
+void dumb_it_set_ramp_style(DUMB_IT_SIGRENDERER * sigrenderer, int ramp_style);
+
+void dumb_it_set_loop_callback(DUMB_IT_SIGRENDERER *sigrenderer, int (*callback)(void *data), void *data);
+void dumb_it_set_xm_speed_zero_callback(DUMB_IT_SIGRENDERER *sigrenderer, int (*callback)(void *data), void *data);
+void dumb_it_set_midi_callback(DUMB_IT_SIGRENDERER *sigrenderer, int (*callback)(void *data, int channel, unsigned char midi_byte), void *data);
+void dumb_it_set_global_volume_zero_callback(DUMB_IT_SIGRENDERER *sigrenderer, int (*callback)(void *data), void *data);
+
+int dumb_it_callback_terminate(void *data);
+int dumb_it_callback_midi_block(void *data, int channel, unsigned char midi_byte);
+
+/* dumb_*_mod*: restrict_ |= 1-Don't read 15 sample files / 2-Use old pattern counting method */
+
+DUH *dumb_load_it(const char *filename);
+DUH *dumb_load_xm(const char *filename);
+DUH *dumb_load_s3m(const char *filename);
+DUH *dumb_load_stm(const char *filename);
+DUH *dumb_load_mod(const char *filename, int restrict_);
+DUH *dumb_load_ptm(const char *filename);
+DUH *dumb_load_669(const char *filename);
+DUH *dumb_load_psm(const char *filename, int subsong);
+DUH *dumb_load_old_psm(const char * filename);
+DUH *dumb_load_mtm(const char *filename);
+DUH *dumb_load_riff(const char *filename);
+DUH *dumb_load_asy(const char *filename);
+DUH *dumb_load_amf(const char *filename);
+DUH *dumb_load_okt(const char *filename);
+
+DUH *dumb_read_it(DUMBFILE *f);
+DUH *dumb_read_xm(DUMBFILE *f);
+DUH *dumb_read_s3m(DUMBFILE *f);
+DUH *dumb_read_stm(DUMBFILE *f);
+DUH *dumb_read_mod(DUMBFILE *f, int restrict_);
+DUH *dumb_read_ptm(DUMBFILE *f);
+DUH *dumb_read_669(DUMBFILE *f);
+DUH *dumb_read_psm(DUMBFILE *f, int subsong);
+DUH *dumb_read_old_psm(DUMBFILE *f);
+DUH *dumb_read_mtm(DUMBFILE *f);
+DUH *dumb_read_riff(DUMBFILE *f);
+DUH *dumb_read_asy(DUMBFILE *f);
+DUH *dumb_read_amf(DUMBFILE *f);
+DUH *dumb_read_okt(DUMBFILE *f);
+
+DUH *dumb_load_it_quick(const char *filename);
+DUH *dumb_load_xm_quick(const char *filename);
+DUH *dumb_load_s3m_quick(const char *filename);
+DUH *dumb_load_stm_quick(const char *filename);
+DUH *dumb_load_mod_quick(const char *filename, int restrict_);
+DUH *dumb_load_ptm_quick(const char *filename);
+DUH *dumb_load_669_quick(const char *filename);
+DUH *dumb_load_psm_quick(const char *filename, int subsong);
+DUH *dumb_load_old_psm_quick(const char * filename);
+DUH *dumb_load_mtm_quick(const char *filename);
+DUH *dumb_load_riff_quick(const char *filename);
+DUH *dumb_load_asy_quick(const char *filename);
+DUH *dumb_load_amf_quick(const char *filename);
+DUH *dumb_load_okt_quick(const char *filename);
+
+DUH *dumb_read_it_quick(DUMBFILE *f);
+DUH *dumb_read_xm_quick(DUMBFILE *f);
+DUH *dumb_read_s3m_quick(DUMBFILE *f);
+DUH *dumb_read_stm_quick(DUMBFILE *f);
+DUH *dumb_read_mod_quick(DUMBFILE *f, int restrict_);
+DUH *dumb_read_ptm_quick(DUMBFILE *f);
+DUH *dumb_read_669_quick(DUMBFILE *f);
+DUH *dumb_read_psm_quick(DUMBFILE *f, int subsong);
+DUH *dumb_read_old_psm_quick(DUMBFILE *f);
+DUH *dumb_read_mtm_quick(DUMBFILE *f);
+DUH *dumb_read_riff_quick(DUMBFILE *f);
+DUH *dumb_read_asy_quick(DUMBFILE *f);
+DUH *dumb_read_amf_quick(DUMBFILE *f);
+DUH *dumb_read_okt_quick(DUMBFILE *f);
+
+DUH *dumb_read_any_quick(DUMBFILE *f, int restrict_, int subsong);
+DUH *dumb_read_any(DUMBFILE *f, int restrict_, int subsong);
+
+DUH *dumb_load_any_quick(const char *filename, int restrict_, int subsong);
+DUH *dumb_load_any(const char *filename, int restrict_, int subsong);
+
+long dumb_it_build_checkpoints(DUMB_IT_SIGDATA *sigdata, int startorder);
+void dumb_it_do_initial_runthrough(DUH *duh);
+
+int dumb_get_psm_subsong_count(DUMBFILE *f);
+
+const unsigned char *dumb_it_sd_get_song_message(DUMB_IT_SIGDATA *sd);
+
+int dumb_it_sd_get_n_orders(DUMB_IT_SIGDATA *sd);
+int dumb_it_sd_get_n_samples(DUMB_IT_SIGDATA *sd);
+int dumb_it_sd_get_n_instruments(DUMB_IT_SIGDATA *sd);
+
+const unsigned char *dumb_it_sd_get_sample_name(DUMB_IT_SIGDATA *sd, int i);
+const unsigned char *dumb_it_sd_get_sample_filename(DUMB_IT_SIGDATA *sd, int i);
+const unsigned char *dumb_it_sd_get_instrument_name(DUMB_IT_SIGDATA *sd, int i);
+const unsigned char *dumb_it_sd_get_instrument_filename(DUMB_IT_SIGDATA *sd, int i);
+
+int dumb_it_sd_get_initial_global_volume(DUMB_IT_SIGDATA *sd);
+void dumb_it_sd_set_initial_global_volume(DUMB_IT_SIGDATA *sd, int gv);
+
+int dumb_it_sd_get_mixing_volume(DUMB_IT_SIGDATA *sd);
+void dumb_it_sd_set_mixing_volume(DUMB_IT_SIGDATA *sd, int mv);
+
+int dumb_it_sd_get_initial_speed(DUMB_IT_SIGDATA *sd);
+void dumb_it_sd_set_initial_speed(DUMB_IT_SIGDATA *sd, int speed);
+
+int dumb_it_sd_get_initial_tempo(DUMB_IT_SIGDATA *sd);
+void dumb_it_sd_set_initial_tempo(DUMB_IT_SIGDATA *sd, int tempo);
+
+int dumb_it_sd_get_initial_channel_volume(DUMB_IT_SIGDATA *sd, int channel);
+void dumb_it_sd_set_initial_channel_volume(DUMB_IT_SIGDATA *sd, int channel, int volume);
+
+int dumb_it_sr_get_current_order(DUMB_IT_SIGRENDERER *sr);
+int dumb_it_sr_get_current_row(DUMB_IT_SIGRENDERER *sr);
+
+int dumb_it_sr_get_global_volume(DUMB_IT_SIGRENDERER *sr);
+void dumb_it_sr_set_global_volume(DUMB_IT_SIGRENDERER *sr, int gv);
+
+int dumb_it_sr_get_tempo(DUMB_IT_SIGRENDERER *sr);
+void dumb_it_sr_set_tempo(DUMB_IT_SIGRENDERER *sr, int tempo);
+
+int dumb_it_sr_get_speed(DUMB_IT_SIGRENDERER *sr);
+void dumb_it_sr_set_speed(DUMB_IT_SIGRENDERER *sr, int speed);
+
+#define DUMB_IT_N_CHANNELS 64
+#define DUMB_IT_N_NNA_CHANNELS 192
+#define DUMB_IT_TOTAL_CHANNELS (DUMB_IT_N_CHANNELS + DUMB_IT_N_NNA_CHANNELS)
+
+/* Channels passed to any of these functions are 0-based */
+int dumb_it_sr_get_channel_volume(DUMB_IT_SIGRENDERER *sr, int channel);
+void dumb_it_sr_set_channel_volume(DUMB_IT_SIGRENDERER *sr, int channel, int volume);
+
+int dumb_it_sr_get_channel_muted(DUMB_IT_SIGRENDERER *sr, int channel);
+void dumb_it_sr_set_channel_muted(DUMB_IT_SIGRENDERER *sr, int channel, int muted);
+
+typedef struct DUMB_IT_CHANNEL_STATE DUMB_IT_CHANNEL_STATE;
+
+struct DUMB_IT_CHANNEL_STATE
+{+ int channel; /* 0-based; meaningful for NNA channels */
+ int sample; /* 1-based; 0 if nothing playing, then other fields undef */
+ int freq; /* in Hz */
+ float volume; /* 1.0 maximum; affected by ALL factors, inc. mixing vol */
+ unsigned char pan; /* 0-64, 100 for surround */
+ signed char subpan; /* use (pan + subpan/256.0f) or ((pan<<8)+subpan) */
+ unsigned char filter_cutoff; /* 0-127 cutoff=127 AND resonance=0 */
+ unsigned char filter_subcutoff; /* 0-255 -> no filters (subcutoff */
+ unsigned char filter_resonance; /* 0-127 always 0 in this case) */
+ /* subcutoff only changes from zero if filter envelopes are in use. The
+ * calculation (filter_cutoff + filter_subcutoff/256.0f) gives a more
+ * accurate filter cutoff measurement as a float. It would often be more
+ * useful to use a scaled int such as ((cutoff<<8) + subcutoff).
+ */
+};
+
+/* Values of 64 or more will access NNA channels here. */
+void dumb_it_sr_get_channel_state(DUMB_IT_SIGRENDERER *sr, int channel, DUMB_IT_CHANNEL_STATE *state);
+
+
+/* Signal Design Helper Values */
+
+/* Use pow(DUMB_SEMITONE_BASE, n) to get the 'delta' value to transpose up by
+ * n semitones. To transpose down, use negative n.
+ */
+#define DUMB_SEMITONE_BASE 1.059463094359295309843105314939748495817
+
+/* Use pow(DUMB_QUARTERTONE_BASE, n) to get the 'delta' value to transpose up
+ * by n quartertones. To transpose down, use negative n.
+ */
+#define DUMB_QUARTERTONE_BASE 1.029302236643492074463779317738953977823
+
+/* Use pow(DUMB_PITCH_BASE, n) to get the 'delta' value to transpose up by n
+ * units. In this case, 256 units represent one semitone; 3072 units
+ * represent one octave. These units are used by the sequence signal (SEQU).
+ */
+#define DUMB_PITCH_BASE 1.000225659305069791926712241547647863626
+
+
+/* Signal Design Function Types */
+
+typedef void sigdata_t;
+typedef void sigrenderer_t;
+
+typedef sigdata_t *(*DUH_LOAD_SIGDATA)(DUH *duh, DUMBFILE *file);
+
+typedef sigrenderer_t *(*DUH_START_SIGRENDERER)(
+ DUH *duh,
+ sigdata_t *sigdata,
+ int n_channels,
+ long pos
+);
+
+typedef void (*DUH_SIGRENDERER_SET_SIGPARAM)(
+ sigrenderer_t *sigrenderer,
+ unsigned char id, long value
+);
+
+typedef long (*DUH_SIGRENDERER_GENERATE_SAMPLES)(
+ sigrenderer_t *sigrenderer,
+ float volume, float delta,
+ long size, sample_t **samples
+);
+
+typedef void (*DUH_SIGRENDERER_GET_CURRENT_SAMPLE)(
+ sigrenderer_t *sigrenderer,
+ float volume,
+ sample_t *samples
+);
+
+typedef long (*DUH_SIGRENDERER_GET_POSITION)(
+ sigrenderer_t *sigrenderer
+);
+
+typedef void (*DUH_END_SIGRENDERER)(sigrenderer_t *sigrenderer);
+
+typedef void (*DUH_UNLOAD_SIGDATA)(sigdata_t *sigdata);
+
+
+/* Signal Design Function Registration */
+
+typedef struct DUH_SIGTYPE_DESC
+{+ long type;
+ DUH_LOAD_SIGDATA load_sigdata;
+ DUH_START_SIGRENDERER start_sigrenderer;
+ DUH_SIGRENDERER_SET_SIGPARAM sigrenderer_set_sigparam;
+ DUH_SIGRENDERER_GENERATE_SAMPLES sigrenderer_generate_samples;
+ DUH_SIGRENDERER_GET_CURRENT_SAMPLE sigrenderer_get_current_sample;
+ DUH_SIGRENDERER_GET_POSITION sigrenderer_get_position;
+ DUH_END_SIGRENDERER end_sigrenderer;
+ DUH_UNLOAD_SIGDATA unload_sigdata;
+}
+DUH_SIGTYPE_DESC;
+
+void dumb_register_sigtype(DUH_SIGTYPE_DESC *desc);
+
+int duh_add_signal(DUH *duh, DUH_SIGTYPE_DESC *desc, sigdata_t *sigdata);
+
+
+// Decide where to put these functions; new heading?
+
+sigdata_t *duh_get_raw_sigdata(DUH *duh, int sig, long type);
+
+DUH_SIGRENDERER *duh_encapsulate_raw_sigrenderer(sigrenderer_t *vsigrenderer, DUH_SIGTYPE_DESC *desc, int n_channels, long pos);
+sigrenderer_t *duh_get_raw_sigrenderer(DUH_SIGRENDERER *sigrenderer, long type);
+
+
+/* Standard Signal Types */
+
+//void dumb_register_sigtype_sample(void);
+
+
+/* Sample Buffer Allocation Helpers */
+
+#ifdef DUMB_DECLARE_DEPRECATED
+sample_t **create_sample_buffer(int n_channels, long length) DUMB_DEPRECATED;
+/* DUMB has been changed to interleave stereo samples. Use
+ * allocate_sample_buffer() instead, and see the comments for
+ * duh_sigrenderer_set_analyser_callback().
+ */
+#endif
+sample_t **allocate_sample_buffer(int n_channels, long length);
+void destroy_sample_buffer(sample_t **samples);
+
+
+/* Silencing Helper */
+
+void dumb_silence(sample_t *samples, long length);
+
+
+/* Click Removal Helpers */
+
+typedef struct DUMB_CLICK_REMOVER DUMB_CLICK_REMOVER;
+
+DUMB_CLICK_REMOVER *dumb_create_click_remover(void);
+void dumb_record_click(DUMB_CLICK_REMOVER *cr, long pos, sample_t step);
+void dumb_remove_clicks(DUMB_CLICK_REMOVER *cr, sample_t *samples, long length, int step, float halflife);
+sample_t dumb_click_remover_get_offset(DUMB_CLICK_REMOVER *cr);
+void dumb_destroy_click_remover(DUMB_CLICK_REMOVER *cr);
+
+DUMB_CLICK_REMOVER **dumb_create_click_remover_array(int n);
+void dumb_record_click_array(int n, DUMB_CLICK_REMOVER **cr, long pos, sample_t *step);
+void dumb_record_click_negative_array(int n, DUMB_CLICK_REMOVER **cr, long pos, sample_t *step);
+void dumb_remove_clicks_array(int n, DUMB_CLICK_REMOVER **cr, sample_t **samples, long length, float halflife);
+void dumb_click_remover_get_offset_array(int n, DUMB_CLICK_REMOVER **cr, sample_t *offset);
+void dumb_destroy_click_remover_array(int n, DUMB_CLICK_REMOVER **cr);
+
+
+/* Resampling Helpers */
+
+#define DUMB_RQ_ALIASING 0
+#define DUMB_RQ_BLEP 1
+#define DUMB_RQ_LINEAR 2
+#define DUMB_RQ_BLAM 3
+#define DUMB_RQ_CUBIC 4
+#define DUMB_RQ_FIR 5
+#define DUMB_RQ_N_LEVELS 6
+
+extern int dumb_resampling_quality; /* This specifies the default */
+void dumb_it_set_resampling_quality(DUMB_IT_SIGRENDERER * sigrenderer, int quality); /* This overrides it */
+
+typedef struct DUMB_RESAMPLER DUMB_RESAMPLER;
+
+typedef struct DUMB_VOLUME_RAMP_INFO DUMB_VOLUME_RAMP_INFO;
+
+typedef void (*DUMB_RESAMPLE_PICKUP)(DUMB_RESAMPLER *resampler, void *data);
+
+struct DUMB_RESAMPLER
+{+ void *src;
+ long pos;
+ int subpos;
+ long start, end;
+ int dir;
+ DUMB_RESAMPLE_PICKUP pickup;
+ void *pickup_data;
+ int quality;
+ /* Everything below this point is internal: do not use. */
+ union {+ sample_t x24[3*2];
+ short x16[3*2];
+ signed char x8[3*2];
+ } x;
+ int overshot;
+ double fir_resampler_ratio;
+ void* fir_resampler[2];
+};
+
+struct DUMB_VOLUME_RAMP_INFO
+{+ float volume;
+ float delta;
+ float target;
+ float mix;
+ unsigned char declick_stage;
+};
+
+void dumb_reset_resampler(DUMB_RESAMPLER *resampler, sample_t *src, int src_channels, long pos, long start, long end, int quality);
+DUMB_RESAMPLER *dumb_start_resampler(sample_t *src, int src_channels, long pos, long start, long end, int quality);
+long dumb_resample_1_1(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume, float delta);
+long dumb_resample_1_2(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
+long dumb_resample_2_1(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
+long dumb_resample_2_2(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
+void dumb_resample_get_current_sample_1_1(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume, sample_t *dst);
+void dumb_resample_get_current_sample_1_2(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
+void dumb_resample_get_current_sample_2_1(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
+void dumb_resample_get_current_sample_2_2(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
+void dumb_end_resampler(DUMB_RESAMPLER *resampler);
+
+void dumb_reset_resampler_16(DUMB_RESAMPLER *resampler, short *src, int src_channels, long pos, long start, long end, int quality);
+DUMB_RESAMPLER *dumb_start_resampler_16(short *src, int src_channels, long pos, long start, long end, int quality);
+long dumb_resample_16_1_1(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume, float delta);
+long dumb_resample_16_1_2(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
+long dumb_resample_16_2_1(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
+long dumb_resample_16_2_2(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
+void dumb_resample_get_current_sample_16_1_1(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume, sample_t *dst);
+void dumb_resample_get_current_sample_16_1_2(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
+void dumb_resample_get_current_sample_16_2_1(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
+void dumb_resample_get_current_sample_16_2_2(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
+void dumb_end_resampler_16(DUMB_RESAMPLER *resampler);
+
+void dumb_reset_resampler_8(DUMB_RESAMPLER *resampler, signed char *src, int src_channels, long pos, long start, long end, int quality);
+DUMB_RESAMPLER *dumb_start_resampler_8(signed char *src, int src_channels, long pos, long start, long end, int quality);
+long dumb_resample_8_1_1(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume, float delta);
+long dumb_resample_8_1_2(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
+long dumb_resample_8_2_1(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
+long dumb_resample_8_2_2(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
+void dumb_resample_get_current_sample_8_1_1(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume, sample_t *dst);
+void dumb_resample_get_current_sample_8_1_2(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
+void dumb_resample_get_current_sample_8_2_1(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
+void dumb_resample_get_current_sample_8_2_2(DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
+void dumb_end_resampler_8(DUMB_RESAMPLER *resampler);
+
+void dumb_reset_resampler_n(int n, DUMB_RESAMPLER *resampler, void *src, int src_channels, long pos, long start, long end, int quality);
+DUMB_RESAMPLER *dumb_start_resampler_n(int n, void *src, int src_channels, long pos, long start, long end, int quality);
+long dumb_resample_n_1_1(int n, DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume, float delta);
+long dumb_resample_n_1_2(int n, DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
+long dumb_resample_n_2_1(int n, DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
+long dumb_resample_n_2_2(int n, DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta);
+void dumb_resample_get_current_sample_n_1_1(int n, DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume, sample_t *dst);
+void dumb_resample_get_current_sample_n_1_2(int n, DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
+void dumb_resample_get_current_sample_n_2_1(int n, DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
+void dumb_resample_get_current_sample_n_2_2(int n, DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst);
+void dumb_end_resampler_n(int n, DUMB_RESAMPLER *resampler);
+
+/* This sets the default panning separation for hard panned formats,
+ or for formats with default panning information. This must be set
+ before using any readers or loaders, and is not really thread safe. */
+
+extern int dumb_it_default_panning_separation; /* in percent, default 25 */
+
+/* DUH Construction */
+
+DUH *make_duh(
+ long length,
+ int n_tags,
+ const char *const tag[][2],
+ int n_signals,
+ DUH_SIGTYPE_DESC *desc[],
+ sigdata_t *sigdata[]
+);
+
+void duh_set_length(DUH *duh, long length);
+
+
+#ifdef __cplusplus
+ }
+#endif
+
+
+#endif /* DUMB_H */
--- /dev/null
+++ b/include/internal/aldumb.h
@@ -1,0 +1,27 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * internal/aldumb.h - The internal header file / / \ \
+ * for DUMB with Allegro. | < / \_
+ * | \/ /\ /
+ * \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#ifndef INTERNAL_ALDUMB_H
+#define INTERNAL_ALDUMB_H
+
+
+void _dat_unload_duh(void *duh);
+
+
+#endif /* INTERNAL_DUMB_H */
--- /dev/null
+++ b/include/internal/barray.h
@@ -1,0 +1,43 @@
+#ifndef _B_ARRAY_H_
+#define _B_ARRAY_H_
+
+#include <stdlib.h>
+
+#ifdef BARRAY_DECORATE
+#undef PASTE
+#undef EVALUATE
+#define PASTE(a,b) a ## b
+#define EVALUATE(a,b) PASTE(a,b)
+#define bit_array_create EVALUATE(BARRAY_DECORATE,_bit_array_create)
+#define bit_array_destroy EVALUATE(BARRAY_DECORATE,_bit_array_destroy)
+#define bit_array_dup EVALUATE(BARRAY_DECORATE,_bit_array_dup)
+#define bit_array_reset EVALUATE(BARRAY_DECORATE,_bit_array_reset)
+#define bit_array_set EVALUATE(BARRAY_DECORATE,_bit_array_set)
+#define bit_array_set_range EVALUATE(BARRAY_DECORATE,_bit_array_set_range)
+#define bit_array_test EVALUATE(BARRAY_DECORATE,_bit_array_test)
+#define bit_array_test_range EVALUATE(BARRAY_DECORATE,_bit_array_test_range)
+#define bit_array_clear EVALUATE(BARRAY_DECORATE,_bit_array_clear)
+#define bit_array_clear_range EVALUATE(BARRAY_DECORATE,_bit_array_clear_range)
+#define bit_array_merge EVALUATE(BARRAY_DECORATE,_bit_array_merge)
+#define bit_array_mask EVALUATE(BARRAY_DECORATE,_bit_array_mask)
+#endif
+
+void * bit_array_create(size_t size);
+void bit_array_destroy(void * array);
+void * bit_array_dup(void * array);
+
+void bit_array_reset(void * array);
+
+void bit_array_set(void * array, size_t bit);
+void bit_array_set_range(void * array, size_t bit, size_t count);
+
+int bit_array_test(void * array, size_t bit);
+int bit_array_test_range(void * array, size_t bit, size_t count);
+
+void bit_array_clear(void * array, size_t bit);
+void bit_array_clear_range(void * array, size_t bit, size_t count);
+
+void bit_array_merge(void * array, void * source, size_t offset);
+void bit_array_mask(void * array, void * source, size_t offset);
+
+#endif
--- /dev/null
+++ b/include/internal/dumb.h
@@ -1,0 +1,61 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * internal/dumb.h - DUMB's internal declarations. / / \ \
+ * | < / \_
+ * This header file provides access to the | \/ /\ /
+ * internal structure of DUMB, and is liable \_ / > /
+ * to change, mutate or cease to exist at any | \ / /
+ * moment. Include it at your own peril. | ' /
+ * \__/
+ * ...
+ *
+ * Seriously. You don't need access to anything in this file. All right, you
+ * probably do actually. But if you use it, you will be relying on a specific
+ * version of DUMB, so please check DUMB_VERSION defined in dumb.h. Please
+ * contact the authors so that we can provide a public API for what you need.
+ */
+
+#ifndef INTERNAL_DUMB_H
+#define INTERNAL_DUMB_H
+
+
+typedef struct DUH_SIGTYPE_DESC_LINK
+{+ struct DUH_SIGTYPE_DESC_LINK *next;
+ DUH_SIGTYPE_DESC *desc;
+}
+DUH_SIGTYPE_DESC_LINK;
+
+
+typedef struct DUH_SIGNAL
+{+ sigdata_t *sigdata;
+ DUH_SIGTYPE_DESC *desc;
+}
+DUH_SIGNAL;
+
+
+struct DUH
+{+ long length;
+
+ int n_tags;
+ char *(*tag)[2];
+
+ int n_signals;
+ DUH_SIGNAL **signal;
+};
+
+
+DUH_SIGTYPE_DESC *_dumb_get_sigtype_desc(long type);
+
+
+#endif /* INTERNAL_DUMB_H */
--- /dev/null
+++ b/include/internal/dumbfile.h
@@ -1,0 +1,13 @@
+#ifndef DUMBFILE_H
+#define DUMBFILE_H
+
+#include "../dumb.h"
+
+struct DUMBFILE
+{+ const DUMBFILE_SYSTEM *dfs;
+ void *file;
+ long pos;
+};
+
+#endif // DUMBFILE_H
--- /dev/null
+++ b/include/internal/fir_resampler.h
@@ -1,0 +1,18 @@
+#ifndef _FIR_RESAMPLER_H_
+#define _FIR_RESAMPLER_H_
+
+void fir_init();
+
+void * fir_resampler_create();
+void fir_resampler_delete(void *);
+void * fir_resampler_dup(void *);
+
+int fir_resampler_get_free_count(void *);
+void fir_resampler_write_sample(void *, short sample);
+void fir_resampler_set_rate( void *, double new_factor );
+int fir_resampler_ready(void *);
+void fir_resampler_clear(void *);
+int fir_resampler_get_sample(void *);
+void fir_resampler_remove_sample(void *);
+
+#endif
--- /dev/null
+++ b/include/internal/it.h
@@ -1,0 +1,926 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * internal/it.h - Internal stuff for IT playback / / \ \
+ * and MOD/XM/S3M conversion. | < / \_
+ * | \/ /\ /
+ * This header file provides access to the \_ / > /
+ * internal structure of DUMB, and is liable | \ / /
+ * to change, mutate or cease to exist at any | ' /
+ * moment. Include it at your own peril. \__/
+ *
+ * ...
+ *
+ * Seriously. You don't need access to anything in this file. All right, you
+ * probably do actually. But if you use it, you will be relying on a specific
+ * version of DUMB, so please check DUMB_VERSION defined in dumb.h. Please
+ * contact the authors so that we can provide a public API for what you need.
+ */
+
+#ifndef INTERNAL_IT_H
+#define INTERNAL_IT_H
+
+
+#define BIT_ARRAY_BULLSHIT
+
+#include <stddef.h>
+
+#include "barray.h"
+#include "tarray.h"
+
+
+/** TO DO: THINK ABOUT THE FOLLOWING:
+
+sigdata->flags & IT_COMPATIBLE_GXX
+
+ Bit 5: On = Link Effect G's memory with Effect E/F. Also
+ Gxx with an instrument present will cause the
+ envelopes to be retriggered. If you change a
+ sample on a row with Gxx, it'll adjust the
+ frequency of the current note according to:
+
+ NewFrequency = OldFrequency * NewC5 / OldC5;
+*/
+
+
+
+/* These #defines are TEMPORARY. They are used to write alternative code to
+ * handle ambiguities in the format specification. The correct code in each
+ * case will be determined most likely by experimentation.
+ */
+//#define STEREO_SAMPLES_COUNT_AS_TWO
+#define INVALID_ORDERS_END_SONG
+#define SUSTAIN_LOOP_OVERRIDES_NORMAL_LOOP
+#define VOLUME_OUT_OF_RANGE_SETS_MAXIMUM
+
+
+
+#define SIGTYPE_IT DUMB_ID('I', 'T', ' ', ' ')+
+#define IT_SIGNATURE DUMB_ID('I', 'M', 'P', 'M')+#define IT_INSTRUMENT_SIGNATURE DUMB_ID('I', 'M', 'P', 'I')+#define IT_SAMPLE_SIGNATURE DUMB_ID('I', 'M', 'P', 'S')+
+// olivier sux
+#define IT_MPTX_SIGNATURE DUMB_ID('X', 'T', 'P', 'M')+#define IT_INSM_SIGNATURE DUMB_ID('M', 'S', 'N', 'I')+
+
+/* This is divided by the tempo times 256 to get the interval between ticks.
+ */
+#define TICK_TIME_DIVIDEND (65536 * 5 * 128)
+
+
+
+/* I'm not going to try to explain this, because I didn't derive it very
+ * formally ;)
+ */
+/* #define AMIGA_DIVISOR ((float)(4.0 * 14317056.0)) */
+/* I believe the following one to be more accurate. */
+//#define AMIGA_DIVISOR ((float)(8.0 * 7159090.5))
+#define AMIGA_CLOCK 3546895
+#define AMIGA_DIVISOR ((float)(16.0 * AMIGA_CLOCK))
+
+
+
+typedef struct IT_MIDI IT_MIDI;
+typedef struct IT_FILTER_STATE IT_FILTER_STATE;
+typedef struct IT_ENVELOPE IT_ENVELOPE;
+typedef struct IT_INSTRUMENT IT_INSTRUMENT;
+typedef struct IT_SAMPLE IT_SAMPLE;
+typedef struct IT_ENTRY IT_ENTRY;
+typedef struct IT_PATTERN IT_PATTERN;
+typedef struct IT_PLAYING_ENVELOPE IT_PLAYING_ENVELOPE;
+typedef struct IT_PLAYING IT_PLAYING;
+typedef struct IT_CHANNEL IT_CHANNEL;
+typedef struct IT_CHECKPOINT IT_CHECKPOINT;
+typedef struct IT_CALLBACKS IT_CALLBACKS;
+
+
+
+struct IT_MIDI
+{+ unsigned char SFmacro[16][16]; // read these from 0x120
+ unsigned char SFmacrolen[16];
+ unsigned short SFmacroz[16]; /* Bitfield; bit 0 set = z in first position */
+ unsigned char Zmacro[128][16]; // read these from 0x320
+ unsigned char Zmacrolen[128];
+};
+
+
+
+struct IT_FILTER_STATE
+{+ sample_t currsample, prevsample;
+};
+
+
+
+#define IT_ENVELOPE_ON 1
+#define IT_ENVELOPE_LOOP_ON 2
+#define IT_ENVELOPE_SUSTAIN_LOOP 4
+#define IT_ENVELOPE_CARRY 8
+#define IT_ENVELOPE_PITCH_IS_FILTER 128
+
+struct IT_ENVELOPE
+{+ unsigned char flags;
+ unsigned char n_nodes;
+ unsigned char loop_start;
+ unsigned char loop_end;
+ unsigned char sus_loop_start;
+ unsigned char sus_loop_end;
+ signed char node_y[25];
+ unsigned short node_t[25];
+};
+
+
+
+#define NNA_NOTE_CUT 0
+#define NNA_NOTE_CONTINUE 1
+#define NNA_NOTE_OFF 2
+#define NNA_NOTE_FADE 3
+
+#define DCT_OFF 0
+#define DCT_NOTE 1
+#define DCT_SAMPLE 2
+#define DCT_INSTRUMENT 3
+
+#define DCA_NOTE_CUT 0
+#define DCA_NOTE_OFF 1
+#define DCA_NOTE_FADE 2
+
+struct IT_INSTRUMENT
+{+ unsigned char name[27];
+ unsigned char filename[14];
+
+ int fadeout;
+
+ IT_ENVELOPE volume_envelope;
+ IT_ENVELOPE pan_envelope;
+ IT_ENVELOPE pitch_envelope;
+
+ unsigned char new_note_action;
+ unsigned char dup_check_type;
+ unsigned char dup_check_action;
+ signed char pp_separation;
+ unsigned char pp_centre;
+ unsigned char global_volume;
+ unsigned char default_pan;
+ unsigned char random_volume;
+ unsigned char random_pan;
+
+ unsigned char filter_cutoff;
+ unsigned char filter_resonance;
+
+ unsigned char map_note[120];
+ unsigned short map_sample[120];
+
+ //int output;
+};
+
+
+
+#define IT_SAMPLE_EXISTS 1
+#define IT_SAMPLE_16BIT 2
+#define IT_SAMPLE_STEREO 4
+#define IT_SAMPLE_LOOP 16
+#define IT_SAMPLE_SUS_LOOP 32
+#define IT_SAMPLE_PINGPONG_LOOP 64
+#define IT_SAMPLE_PINGPONG_SUS_LOOP 128
+
+#define IT_VIBRATO_SINE 0
+#define IT_VIBRATO_SAWTOOTH 1
+#define IT_VIBRATO_SQUARE 2
+#define IT_VIBRATO_RANDOM 3
+#define IT_VIBRATO_XM_SQUARE 4
+#define IT_VIBRATO_RAMP_DOWN 5
+#define IT_VIBRATO_RAMP_UP 6
+
+struct IT_SAMPLE
+{+ unsigned char name[35];
+ unsigned char filename[15];
+ unsigned char flags;
+ unsigned char global_volume;
+ unsigned char default_volume;
+ unsigned char default_pan;
+ /* default_pan:
+ * 0-255 for XM
+ * ignored for MOD
+ * otherwise, 0-64, and add 128 to enable
+ */
+
+ long length;
+ long loop_start;
+ long loop_end;
+ long C5_speed;
+ long sus_loop_start;
+ long sus_loop_end;
+
+ unsigned char vibrato_speed;
+ unsigned char vibrato_depth;
+ unsigned char vibrato_rate;
+ unsigned char vibrato_waveform;
+
+ signed short finetune;
+
+ void *data;
+
+ int max_resampling_quality;
+};
+
+
+
+#define IT_ENTRY_NOTE 1
+#define IT_ENTRY_INSTRUMENT 2
+#define IT_ENTRY_VOLPAN 4
+#define IT_ENTRY_EFFECT 8
+
+#define IT_SET_END_ROW(entry) ((entry)->channel = 255)
+#define IT_IS_END_ROW(entry) ((entry)->channel >= DUMB_IT_N_CHANNELS)
+
+#define IT_NOTE_OFF 255
+#define IT_NOTE_CUT 254
+
+#define IT_ENVELOPE_SHIFT 8
+
+#define IT_SURROUND 100
+#define IT_IS_SURROUND(pan) ((pan) > 64)
+#define IT_IS_SURROUND_SHIFTED(pan) ((pan) > 64 << IT_ENVELOPE_SHIFT)
+
+#define IT_SET_SPEED 1
+#define IT_JUMP_TO_ORDER 2
+#define IT_BREAK_TO_ROW 3
+#define IT_VOLUME_SLIDE 4
+#define IT_PORTAMENTO_DOWN 5
+#define IT_PORTAMENTO_UP 6
+#define IT_TONE_PORTAMENTO 7
+#define IT_VIBRATO 8
+#define IT_TREMOR 9
+#define IT_ARPEGGIO 10
+#define IT_VOLSLIDE_VIBRATO 11
+#define IT_VOLSLIDE_TONEPORTA 12
+#define IT_SET_CHANNEL_VOLUME 13
+#define IT_CHANNEL_VOLUME_SLIDE 14
+#define IT_SET_SAMPLE_OFFSET 15
+#define IT_PANNING_SLIDE 16
+#define IT_RETRIGGER_NOTE 17
+#define IT_TREMOLO 18
+#define IT_S 19
+#define IT_SET_SONG_TEMPO 20
+#define IT_FINE_VIBRATO 21
+#define IT_SET_GLOBAL_VOLUME 22
+#define IT_GLOBAL_VOLUME_SLIDE 23
+#define IT_SET_PANNING 24
+#define IT_PANBRELLO 25
+#define IT_MIDI_MACRO 26 //see MIDI.TXT
+
+/* Some effects needed for XM compatibility */
+#define IT_XM_PORTAMENTO_DOWN 27
+#define IT_XM_PORTAMENTO_UP 28
+#define IT_XM_FINE_VOLSLIDE_DOWN 29
+#define IT_XM_FINE_VOLSLIDE_UP 30
+#define IT_XM_RETRIGGER_NOTE 31
+#define IT_XM_KEY_OFF 32
+#define IT_XM_SET_ENVELOPE_POSITION 33
+
+/* More effects needed for PTM compatibility */
+#define IT_PTM_NOTE_SLIDE_DOWN 34
+#define IT_PTM_NOTE_SLIDE_UP 35
+#define IT_PTM_NOTE_SLIDE_DOWN_RETRIG 36
+#define IT_PTM_NOTE_SLIDE_UP_RETRIG 37
+
+/* More effects needed for OKT compatibility */
+#define IT_OKT_NOTE_SLIDE_DOWN 38
+#define IT_OKT_NOTE_SLIDE_DOWN_ROW 39
+#define IT_OKT_NOTE_SLIDE_UP 40
+#define IT_OKT_NOTE_SLIDE_UP_ROW 41
+#define IT_OKT_ARPEGGIO_3 42
+#define IT_OKT_ARPEGGIO_4 43
+#define IT_OKT_ARPEGGIO_5 44
+#define IT_OKT_VOLUME_SLIDE_DOWN 45
+#define IT_OKT_VOLUME_SLIDE_UP 46
+
+#define IT_N_EFFECTS 47
+
+/* These represent the top nibble of the command value. */
+#define IT_S_SET_FILTER 0 /* Greyed out in IT... */
+#define IT_S_SET_GLISSANDO_CONTROL 1 /* Greyed out in IT... */
+#define IT_S_FINETUNE 2 /* Greyed out in IT... */
+#define IT_S_SET_VIBRATO_WAVEFORM 3
+#define IT_S_SET_TREMOLO_WAVEFORM 4
+#define IT_S_SET_PANBRELLO_WAVEFORM 5
+#define IT_S_FINE_PATTERN_DELAY 6
+#define IT_S7 7
+#define IT_S_SET_PAN 8
+#define IT_S_SET_SURROUND_SOUND 9
+#define IT_S_SET_HIGH_OFFSET 10
+#define IT_S_PATTERN_LOOP 11
+#define IT_S_DELAYED_NOTE_CUT 12
+#define IT_S_NOTE_DELAY 13
+#define IT_S_PATTERN_DELAY 14
+#define IT_S_SET_MIDI_MACRO 15
+
+/*
+S0x Set filter
+S1x Set glissando control
+S2x Set finetune
+
+
+S3x Set vibrato waveform to type x
+S4x Set tremelo waveform to type x
+S5x Set panbrello waveform to type x
+ Waveforms for commands S3x, S4x and S5x:
+ 0: Sine wave
+ 1: Ramp down
+ 2: Square wave
+ 3: Random wave
+S6x Pattern delay for x ticks
+S70 Past note cut
+S71 Past note off
+S72 Past note fade
+S73 Set NNA to note cut
+S74 Set NNA to continue
+S75 Set NNA to note off
+S76 Set NNA to note fade
+S77 Turn off volume envelope
+S78 Turn on volume envelope
+S79 Turn off panning envelope
+S7A Turn on panning envelope
+S7B Turn off pitch envelope
+S7C Turn on pitch envelope
+S8x Set panning position
+S91 Set surround sound
+SAy Set high value of sample offset yxx00h
+SB0 Set loopback point
+SBx Loop x times to loopback point
+SCx Note cut after x ticks
+SDx Note delay for x ticks
+SEx Pattern delay for x rows
+SFx Set parameterised MIDI Macro
+*/
+
+struct IT_ENTRY
+{+ unsigned char channel; /* End of row if channel >= DUMB_IT_N_CHANNELS */
+ unsigned char mask;
+ unsigned char note;
+ unsigned char instrument;
+ unsigned char volpan;
+ unsigned char effect;
+ unsigned char effectvalue;
+};
+
+
+
+struct IT_PATTERN
+{+ int n_rows;
+ int n_entries;
+ IT_ENTRY *entry;
+};
+
+
+
+#define IT_STEREO 1
+#define IT_USE_INSTRUMENTS 4
+#define IT_LINEAR_SLIDES 8 /* If not set, use Amiga slides */
+#define IT_OLD_EFFECTS 16
+#define IT_COMPATIBLE_GXX 32
+
+/* Make sure IT_WAS_AN_XM and IT_WAS_A_MOD aren't set accidentally */
+#define IT_REAL_FLAGS 63
+
+#define IT_WAS_AN_XM 64 /* Set for both XMs and MODs */
+#define IT_WAS_A_MOD 128
+
+#define IT_WAS_AN_S3M 256
+
+#define IT_WAS_A_PTM 512
+
+#define IT_WAS_A_669 1024
+
+#define IT_WAS_AN_OKT 2048
+
+#define IT_WAS_AN_STM 4096
+
+#define IT_WAS_PROCESSED 8192 /* Will be set the first time a sigdata passes through a sigrenderer */
+
+#define IT_ORDER_END 255
+#define IT_ORDER_SKIP 254
+
+struct DUMB_IT_SIGDATA
+{+ unsigned char name[65];
+
+ unsigned char *song_message;
+
+ int n_orders;
+ int n_instruments;
+ int n_samples;
+ int n_patterns;
+ int n_pchannels;
+
+ int flags;
+
+ int global_volume;
+ int mixing_volume;
+ int speed;
+ int tempo;
+ int pan_separation;
+
+ unsigned char channel_pan[DUMB_IT_N_CHANNELS];
+ unsigned char channel_volume[DUMB_IT_N_CHANNELS];
+
+ unsigned char *order;
+ unsigned char restart_position; /* for XM compatiblity */
+
+ IT_INSTRUMENT *instrument;
+ IT_SAMPLE *sample;
+ IT_PATTERN *pattern;
+
+ IT_MIDI *midi;
+
+ IT_CHECKPOINT *checkpoint;
+};
+
+
+
+struct IT_PLAYING_ENVELOPE
+{+ int next_node;
+ int tick;
+ int value;
+};
+
+
+
+#define IT_PLAYING_BACKGROUND 1
+#define IT_PLAYING_SUSTAINOFF 2
+#define IT_PLAYING_FADING 4
+#define IT_PLAYING_DEAD 8
+#define IT_PLAYING_REVERSE 16
+
+struct IT_PLAYING
+{+ int flags;
+
+ int resampling_quality;
+
+ IT_CHANNEL *channel;
+ IT_SAMPLE *sample;
+ IT_INSTRUMENT *instrument;
+ IT_INSTRUMENT *env_instrument;
+
+ unsigned short sampnum;
+ unsigned char instnum;
+
+ unsigned char declick_stage;
+
+ float float_volume[2];
+ float ramp_volume[2];
+ float ramp_delta[2];
+
+ unsigned char channel_volume;
+
+ unsigned char volume;
+ unsigned short pan;
+
+ signed char volume_offset, panning_offset;
+
+ unsigned char note;
+
+ unsigned char enabled_envelopes;
+
+ unsigned char filter_cutoff;
+ unsigned char filter_resonance;
+
+ unsigned short true_filter_cutoff; /* These incorporate the filter envelope, and will not */
+ unsigned char true_filter_resonance; /* be changed if they would be set to 127<<8 and 0. */
+
+ unsigned char vibrato_speed;
+ unsigned char vibrato_depth;
+ unsigned char vibrato_n; /* May be specified twice: volpan & effect. */
+ unsigned char vibrato_time;
+ unsigned char vibrato_waveform;
+
+ unsigned char tremolo_speed;
+ unsigned char tremolo_depth;
+ unsigned char tremolo_time;
+ unsigned char tremolo_waveform;
+
+ unsigned char panbrello_speed;
+ unsigned char panbrello_depth;
+ unsigned char panbrello_time;
+ unsigned char panbrello_waveform;
+ signed char panbrello_random;
+
+ unsigned char sample_vibrato_time;
+ unsigned char sample_vibrato_waveform;
+ int sample_vibrato_depth; /* Starts at rate?0:depth, increases by rate */
+
+ int slide;
+ float delta;
+ int finetune;
+
+ IT_PLAYING_ENVELOPE volume_envelope;
+ IT_PLAYING_ENVELOPE pan_envelope;
+ IT_PLAYING_ENVELOPE pitch_envelope;
+
+ int fadeoutcount;
+
+ IT_FILTER_STATE filter_state[2]; /* Left and right */
+
+ DUMB_RESAMPLER resampler;
+
+ /* time_lost is used to emulate Impulse Tracker's sample looping
+ * characteristics. When time_lost is added to pos, the result represents
+ * the position in the theoretical version of the sample where all loops
+ * have been expanded. If this is stored, the resampling helpers will
+ * safely convert it for use with new loop boundaries. The situation is
+ * slightly more complicated if dir == -1 when the change takes place; we
+ * must reflect pos off the loop end point and set dir to 1 before
+ * proceeding.
+ */
+ long time_lost;
+
+ //int output;
+};
+
+
+
+#define IT_CHANNEL_MUTED 1
+
+#define IT_ENV_VOLUME 1
+#define IT_ENV_PANNING 2
+#define IT_ENV_PITCH 4
+
+struct IT_CHANNEL
+{+ int flags;
+
+ unsigned char volume;
+ signed char volslide;
+ signed char xm_volslide;
+ signed char panslide;
+
+ /* xm_volslide is used for volume slides done in the volume column in an
+ * XM file, since it seems the volume column slide is applied first,
+ * followed by clamping, followed by the effects column slide. IT does
+ * not exhibit this behaviour, so xm_volslide is maintained at zero.
+ */
+
+ unsigned char pan;
+ unsigned short truepan;
+
+ unsigned char channelvolume;
+ signed char channelvolslide;
+
+ unsigned char instrument;
+ unsigned char note;
+
+ unsigned char SFmacro;
+
+ unsigned char filter_cutoff;
+ unsigned char filter_resonance;
+
+ unsigned char key_off_count;
+ unsigned char note_cut_count;
+ unsigned char note_delay_count;
+ IT_ENTRY *note_delay_entry;
+
+ unsigned char new_note_action;
+
+ unsigned char const* arpeggio_table;
+ signed char arpeggio_offsets[3];
+
+ int arpeggio_shift;
+ unsigned char retrig;
+ unsigned char xm_retrig;
+ int retrig_tick;
+
+ unsigned char tremor;
+ unsigned char tremor_time; /* Bit 6 set if note on; bit 7 set if tremor active. */
+
+ unsigned char vibrato_waveform;
+ unsigned char tremolo_waveform;
+ unsigned char panbrello_waveform;
+
+ int portamento;
+ int toneporta;
+ int toneslide;
+ unsigned char toneslide_tick, last_toneslide_tick, ptm_toneslide, ptm_last_toneslide, okt_toneslide;
+ unsigned char destnote;
+ unsigned char toneslide_retrig;
+
+ unsigned char glissando;
+
+ /** WARNING - for neatness, should one or both of these be in the IT_PLAYING struct? */
+ unsigned short sample;
+ unsigned char truenote;
+
+ unsigned char midi_state;
+
+ signed char lastvolslide;
+ unsigned char lastDKL;
+ unsigned char lastEF; /* Doubles as last portamento up for XM files */
+ unsigned char lastG;
+ unsigned char lastHspeed;
+ unsigned char lastHdepth;
+ unsigned char lastRspeed;
+ unsigned char lastRdepth;
+ unsigned char lastYspeed;
+ unsigned char lastYdepth;
+ unsigned char lastI;
+ unsigned char lastJ; /* Doubles as last portamento down for XM files */
+ unsigned char lastN;
+ unsigned char lastO;
+ unsigned char high_offset;
+ unsigned char lastP;
+ unsigned char lastQ;
+ unsigned char lastS;
+ unsigned char pat_loop_row;
+ unsigned char pat_loop_count;
+ unsigned char pat_loop_end_row; /* Used to catch infinite pattern loops */
+ unsigned char lastW;
+
+ unsigned char xm_lastE1;
+ unsigned char xm_lastE2;
+ unsigned char xm_lastEA;
+ unsigned char xm_lastEB;
+ unsigned char xm_lastX1;
+ unsigned char xm_lastX2;
+
+ unsigned char inv_loop_delay;
+ unsigned char inv_loop_speed;
+ int inv_loop_offset;
+
+ IT_PLAYING *playing;
+
+#ifdef BIT_ARRAY_BULLSHIT
+ void * played_patjump;
+ int played_patjump_order;
+#endif
+
+ //int output;
+};
+
+
+
+struct DUMB_IT_SIGRENDERER
+{+ DUMB_IT_SIGDATA *sigdata;
+
+ int n_channels;
+
+ int resampling_quality;
+
+ unsigned char globalvolume;
+ signed char globalvolslide;
+
+ int tempo;
+ signed char temposlide;
+
+ IT_CHANNEL channel[DUMB_IT_N_CHANNELS];
+
+ IT_PLAYING *playing[DUMB_IT_N_NNA_CHANNELS];
+
+ int tick;
+ int speed;
+ int rowcount;
+
+ int order; /* Set to -1 if the song is terminated by a callback. */
+ int row;
+ int processorder;
+ int processrow;
+ int breakrow;
+
+ int restart_position;
+
+ int n_rows;
+
+ IT_ENTRY *entry_start;
+ IT_ENTRY *entry;
+ IT_ENTRY *entry_end;
+
+ long time_left; /* Time before the next tick is processed */
+ int sub_time_left;
+
+ DUMB_CLICK_REMOVER **click_remover;
+
+ IT_CALLBACKS *callbacks;
+
+#ifdef BIT_ARRAY_BULLSHIT
+ /* bit array, which rows are played, only checked by pattern break or loop commands */
+ void * played;
+
+ /*
+ Loop indicator for internal processes, may also be useful for external processes
+ 0 - Not looped
+ 1 - Looped
+ -1 - Continued past loop
+ */
+ int looped;
+
+ /*
+ Kept until looped
+ */
+ LONG_LONG time_played;
+
+ void * row_timekeeper;
+#endif
+
+ long gvz_time;
+ int gvz_sub_time;
+
+ int ramp_style;
+
+ //int max_output;
+};
+
+
+
+struct IT_CHECKPOINT
+{+ IT_CHECKPOINT *next;
+ long time;
+ DUMB_IT_SIGRENDERER *sigrenderer;
+};
+
+
+
+struct IT_CALLBACKS
+{+ int (*loop)(void *data);
+ void *loop_data;
+ /* Return 1 to prevent looping; the music will terminate abruptly. If you
+ * want to make the music stop but allow samples to fade (beware, as they
+ * might not fade at all!), use dumb_it_sr_set_speed() and set the speed
+ * to 0. Note that xm_speed_zero() will not be called if you set the
+ * speed manually, and also that this will work for IT and S3M files even
+ * though the music can't stop in this way by itself.
+ */
+
+ int (*xm_speed_zero)(void *data);
+ void *xm_speed_zero_data;
+ /* Return 1 to terminate the mod, without letting samples fade. */
+
+ int (*midi)(void *data, int channel, unsigned char byte);
+ void *midi_data;
+ /* Return 1 to prevent DUMB from subsequently interpreting the MIDI bytes
+ * itself. In other words, return 1 if the Zxx macros in an IT file are
+ * controlling filters and shouldn't be.
+ */
+
+ int (*global_volume_zero)(void *data);
+ void *global_volume_zero_data;
+ /* Return 1 to terminate the module when global volume is set to zero. */
+};
+
+
+
+void _dumb_it_end_sigrenderer(sigrenderer_t *sigrenderer);
+void _dumb_it_unload_sigdata(sigdata_t *vsigdata);
+
+extern DUH_SIGTYPE_DESC _dumb_sigtype_it;
+
+
+
+#define XM_APPREGIO 0
+#define XM_PORTAMENTO_UP 1
+#define XM_PORTAMENTO_DOWN 2
+#define XM_TONE_PORTAMENTO 3
+#define XM_VIBRATO 4
+#define XM_VOLSLIDE_TONEPORTA 5
+#define XM_VOLSLIDE_VIBRATO 6
+#define XM_TREMOLO 7
+#define XM_SET_PANNING 8
+#define XM_SAMPLE_OFFSET 9
+#define XM_VOLUME_SLIDE 10 /* A */
+#define XM_POSITION_JUMP 11 /* B */
+#define XM_SET_CHANNEL_VOLUME 12 /* C */
+#define XM_PATTERN_BREAK 13 /* D */
+#define XM_E 14 /* E */
+#define XM_SET_TEMPO_BPM 15 /* F */
+#define XM_SET_GLOBAL_VOLUME 16 /* G */
+#define XM_GLOBAL_VOLUME_SLIDE 17 /* H */
+#define XM_KEY_OFF 20 /* K (undocumented) */
+#define XM_SET_ENVELOPE_POSITION 21 /* L */
+#define XM_PANNING_SLIDE 25 /* P */
+#define XM_MULTI_RETRIG 27 /* R */
+#define XM_TREMOR 29 /* T */
+#define XM_X 33 /* X */
+#define XM_N_EFFECTS (10+26)
+
+#define XM_E_SET_FILTER 0x0
+#define XM_E_FINE_PORTA_UP 0x1
+#define XM_E_FINE_PORTA_DOWN 0x2
+#define XM_E_SET_GLISSANDO_CONTROL 0x3
+#define XM_E_SET_VIBRATO_CONTROL 0x4
+#define XM_E_SET_FINETUNE 0x5
+#define XM_E_SET_LOOP 0x6
+#define XM_E_SET_TREMOLO_CONTROL 0x7
+#define XM_E_SET_PANNING 0x8
+#define XM_E_RETRIG_NOTE 0x9
+#define XM_E_FINE_VOLSLIDE_UP 0xA
+#define XM_E_FINE_VOLSLIDE_DOWN 0xB
+#define XM_E_NOTE_CUT 0xC
+#define XM_E_NOTE_DELAY 0xD
+#define XM_E_PATTERN_DELAY 0xE
+#define XM_E_SET_MIDI_MACRO 0xF
+
+#define XM_X_EXTRAFINE_PORTA_UP 1
+#define XM_X_EXTRAFINE_PORTA_DOWN 2
+
+/* To make my life a bit simpler during conversion, effect E:xy is converted
+ * to effect number EBASE+x:y. The same applies to effect X, and IT's S. That
+ * way, these effects can be manipulated like regular effects.
+ */
+#define EBASE (XM_N_EFFECTS)
+#define XBASE (EBASE+16)
+#define SBASE (IT_N_EFFECTS)
+
+#define EFFECT_VALUE(x, y) (((x)<<4)|(y))
+#define HIGH(v) ((v)>>4)
+#define LOW(v) ((v)&0x0F)
+#define SET_HIGH(v, x) v = (((x)<<4)|((v)&0x0F))
+#define SET_LOW(v, y) v = (((v)&0xF0)|(y))
+#define BCD_TO_NORMAL(v) (HIGH(v)*10+LOW(v))
+
+
+
+#if 0
+unsigned char **_dumb_malloc2(int w, int h);
+void _dumb_free2(unsigned char **line);
+#endif
+
+void _dumb_it_xm_convert_effect(int effect, int value, IT_ENTRY *entry, int mod);
+int _dumb_it_fix_invalid_orders(DUMB_IT_SIGDATA *sigdata);
+
+
+#define PTM_APPREGIO 0
+#define PTM_PORTAMENTO_UP 1
+#define PTM_PORTAMENTO_DOWN 2
+#define PTM_TONE_PORTAMENTO 3
+#define PTM_VIBRATO 4
+#define PTM_VOLSLIDE_TONEPORTA 5
+#define PTM_VOLSLIDE_VIBRATO 6
+#define PTM_TREMOLO 7
+#define PTM_SAMPLE_OFFSET 9
+#define PTM_VOLUME_SLIDE 10 /* A */
+#define PTM_POSITION_JUMP 11 /* B */
+#define PTM_SET_CHANNEL_VOLUME 12 /* C */
+#define PTM_PATTERN_BREAK 13 /* D */
+#define PTM_E 14 /* E */
+#define PTM_SET_TEMPO_BPM 15 /* F */
+#define PTM_SET_GLOBAL_VOLUME 16 /* G */
+#define PTM_RETRIGGER 17 /* H */
+#define PTM_FINE_VIBRATO 18 /* I */
+#define PTM_NOTE_SLIDE_UP 19 /* J */
+#define PTM_NOTE_SLIDE_DOWN 20 /* K */
+#define PTM_NOTE_SLIDE_UP_RETRIG 21 /* L */
+#define PTM_NOTE_SLIDE_DOWN_RETRIG 22 /* M */
+#define PTM_N_EFFECTS 23
+
+#define PTM_E_FINE_PORTA_DOWN 0x1
+#define PTM_E_FINE_PORTA_UP 0x2
+#define PTM_E_SET_VIBRATO_CONTROL 0x4
+#define PTM_E_SET_FINETUNE 0x5
+#define PTM_E_SET_LOOP 0x6
+#define PTM_E_SET_TREMOLO_CONTROL 0x7
+#define PTM_E_SET_PANNING 0x8
+#define PTM_E_RETRIG_NOTE 0x9
+#define PTM_E_FINE_VOLSLIDE_UP 0xA
+#define PTM_E_FINE_VOLSLIDE_DOWN 0xB
+#define PTM_E_NOTE_CUT 0xC
+#define PTM_E_NOTE_DELAY 0xD
+#define PTM_E_PATTERN_DELAY 0xE
+
+/* To make my life a bit simpler during conversion, effect E:xy is converted
+ * to effect number EBASE+x:y. The same applies to effect X, and IT's S. That
+ * way, these effects can be manipulated like regular effects.
+ */
+#define PTM_EBASE (PTM_N_EFFECTS)
+
+void _dumb_it_ptm_convert_effect(int effect, int value, IT_ENTRY *entry);
+
+long _dumb_it_read_sample_data_adpcm4(IT_SAMPLE *sample, DUMBFILE *f);
+
+void _dumb_it_interleave_stereo_sample(IT_SAMPLE *sample);
+
+/* Calling either of these is optional */
+void _dumb_init_cubic();
+#ifdef _USE_SSE
+void _dumb_init_sse();
+#endif
+
+#endif /* INTERNAL_IT_H */
--- /dev/null
+++ b/include/internal/lpc.h
@@ -1,0 +1,24 @@
+/********************************************************************
+ * *
+ * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
+ * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
+ * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
+ * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
+ * *
+ * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 *
+ * by the Xiph.Org Foundation http://www.xiph.org/ *
+ * *
+ ********************************************************************
+
+ function: LPC low level routines
+ last mod: $Id: lpc.h 16037 2009-05-26 21:10:58Z xiphmont $
+
+ ********************************************************************/
+
+#ifndef _V_LPC_H_
+#define _V_LPC_H_
+
+struct DUMB_IT_SIGDATA;
+extern void dumb_it_add_lpc(struct DUMB_IT_SIGDATA *sigdata);
+
+#endif
--- /dev/null
+++ b/include/internal/resampler.h
@@ -1,0 +1,60 @@
+#ifndef _RESAMPLER_H_
+#define _RESAMPLER_H_
+
+// Ugglay
+#ifdef RESAMPLER_DECORATE
+#undef PASTE
+#undef EVALUATE
+#define PASTE(a,b) a ## b
+#define EVALUATE(a,b) PASTE(a,b)
+#define resampler_init EVALUATE(RESAMPLER_DECORATE,_resampler_init)
+#define resampler_create EVALUATE(RESAMPLER_DECORATE,_resampler_create)
+#define resampler_delete EVALUATE(RESAMPLER_DECORATE,_resampler_delete)
+#define resampler_dup EVALUATE(RESAMPLER_DECORATE,_resampler_dup)
+#define resampler_dup_inplace EVALUATE(RESAMPLER_DECORATE,_resampler_dup_inplace)
+#define resampler_set_quality EVALUATE(RESAMPLER_DECORATE,_resampler_set_quality)
+#define resampler_get_free_count EVALUATE(RESAMPLER_DECORATE,_resampler_get_free_count)
+#define resampler_write_sample EVALUATE(RESAMPLER_DECORATE,_resampler_write_sample)
+#define resampler_write_sample_fixed EVALUATE(RESAMPLER_DECORATE,_resampler_write_sample_fixed)
+#define resampler_set_rate EVALUATE(RESAMPLER_DECORATE,_resampler_set_rate)
+#define resampler_ready EVALUATE(RESAMPLER_DECORATE,_resampler_ready)
+#define resampler_clear EVALUATE(RESAMPLER_DECORATE,_resampler_clear)
+#define resampler_get_sample_count EVALUATE(RESAMPLER_DECORATE,_resampler_get_sample_count)
+#define resampler_get_sample EVALUATE(RESAMPLER_DECORATE,_resampler_get_sample)
+#define resampler_get_sample_float EVALUATE(RESAMPLER_DECORATE,_resampler_get_sample_float)
+#define resampler_remove_sample EVALUATE(RESAMPLER_DECORATE,_resampler_remove_sample)
+#endif
+
+void resampler_init(void);
+
+void * resampler_create(void);
+void resampler_delete(void *);
+void * resampler_dup(const void *);
+void resampler_dup_inplace(void *, const void *);
+
+enum
+{+ RESAMPLER_QUALITY_MIN = 0,
+ RESAMPLER_QUALITY_ZOH = 0,
+ RESAMPLER_QUALITY_BLEP = 1,
+ RESAMPLER_QUALITY_LINEAR = 2,
+ RESAMPLER_QUALITY_BLAM = 3,
+ RESAMPLER_QUALITY_CUBIC = 4,
+ RESAMPLER_QUALITY_SINC = 5,
+ RESAMPLER_QUALITY_MAX = 5
+};
+
+void resampler_set_quality(void *, int quality);
+
+int resampler_get_free_count(void *);
+void resampler_write_sample(void *, short sample);
+void resampler_write_sample_fixed(void *, int sample, unsigned char depth);
+void resampler_set_rate( void *, double new_factor );
+int resampler_ready(void *);
+void resampler_clear(void *);
+int resampler_get_sample_count(void *);
+int resampler_get_sample(void *);
+float resampler_get_sample_float(void *);
+void resampler_remove_sample(void *, int decay);
+
+#endif
--- /dev/null
+++ b/include/internal/riff.h
@@ -1,0 +1,24 @@
+#ifndef RIFF_H
+#define RIFF_H
+
+struct riff;
+
+struct riff_chunk
+{+ unsigned type;
+ long offset;
+ unsigned size;
+ struct riff * nested;
+};
+
+struct riff
+{+ unsigned type;
+ unsigned chunk_count;
+ struct riff_chunk * chunks;
+};
+
+struct riff * riff_parse( DUMBFILE * f, long offset, long size, unsigned proper );
+void riff_free( struct riff * );
+
+#endif
--- /dev/null
+++ b/include/internal/stack_alloc.h
@@ -1,0 +1,113 @@
+/* Copyright (C) 2002 Jean-Marc Valin */
+/**
+ @file stack_alloc.h
+ @brief Temporary memory allocation on stack
+*/
+/*
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ - Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+ - Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ - Neither the name of the Xiph.org Foundation nor the names of its
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
+ CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef STACK_ALLOC_H
+#define STACK_ALLOC_H
+
+#ifdef WIN32
+# include <malloc.h>
+#else
+# ifdef HAVE_ALLOCA_H
+# include <alloca.h>
+# else
+# include <stdlib.h>
+# endif
+#endif
+
+/**
+ * @def ALIGN(stack, size)
+ *
+ * Aligns the stack to a 'size' boundary
+ *
+ * @param stack Stack
+ * @param size New size boundary
+ */
+
+/**
+ * @def PUSH(stack, size, type)
+ *
+ * Allocates 'size' elements of type 'type' on the stack
+ *
+ * @param stack Stack
+ * @param size Number of elements
+ * @param type Type of element
+ */
+
+/**
+ * @def VARDECL(var)
+ *
+ * Declare variable on stack
+ *
+ * @param var Variable to declare
+ */
+
+/**
+ * @def ALLOC(var, size, type)
+ *
+ * Allocate 'size' elements of 'type' on stack
+ *
+ * @param var Name of variable to allocate
+ * @param size Number of elements
+ * @param type Type of element
+ */
+
+#ifdef ENABLE_VALGRIND
+
+#include <valgrind/memcheck.h>
+
+#define ALIGN(stack, size) ((stack) += ((size) - (long)(stack)) & ((size) - 1))
+
+#define PUSH(stack, size, type) (VALGRIND_MAKE_NOACCESS(stack, 1000),ALIGN((stack),sizeof(type)),VALGRIND_MAKE_WRITABLE(stack, ((size)*sizeof(type))),(stack)+=((size)*sizeof(type)),(type*)((stack)-((size)*sizeof(type))))
+
+#else
+
+#define ALIGN(stack, size) ((stack) += ((size) - (long)(stack)) & ((size) - 1))
+
+#define PUSH(stack, size, type) (ALIGN((stack),sizeof(type)),(stack)+=((size)*sizeof(type)),(type*)((stack)-((size)*sizeof(type))))
+
+#endif
+
+#if defined(VAR_ARRAYS)
+#define VARDECL(var)
+#define ALLOC(var, size, type) type var[size]
+#elif defined(USE_ALLOCA)
+#define VARDECL(var) var
+#define ALLOC(var, size, type) var = alloca(sizeof(type)*(size))
+#else
+#define VARDECL(var) var
+#define ALLOC(var, size, type) var = PUSH(stack, size, type)
+#endif
+
+
+#endif
--- /dev/null
+++ b/include/internal/tarray.h
@@ -1,0 +1,31 @@
+#ifndef _T_ARRAY_H_
+#define _T_ARRAY_H_
+
+#include <stdlib.h>
+
+#ifndef LONG_LONG
+#if defined __GNUC__ || defined __INTEL_COMPILER || defined __MWERKS__
+#define LONG_LONG long long
+#elif defined _MSC_VER || defined __WATCOMC__
+#define LONG_LONG __int64
+#elif defined __sgi
+#define LONG_LONG long long
+#else
+#error 64-bit integer type unknown
+#endif
+#endif
+
+void * timekeeping_array_create(size_t size);
+void timekeeping_array_destroy(void * array);
+void * timekeeping_array_dup(void * array);
+
+void timekeeping_array_reset(void * array, size_t loop_start);
+
+void timekeeping_array_push(void * array, size_t index, LONG_LONG time);
+void timekeeping_array_bump(void * array, size_t index);
+
+unsigned int timekeeping_array_get_count(void * array, size_t index);
+
+LONG_LONG timekeeping_array_get_item(void * array, size_t index);
+
+#endif
--- /dev/null
+++ b/licence.txt
@@ -1,0 +1,87 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * licence.txt - Conditions for use of DUMB. / / \ \
+ * | < / \_
+ * If you do not agree to these terms, please | \/ /\ /
+ * do not use DUMB. \_ / > /
+ * | \ / /
+ * Information in [brackets] is provided to aid | ' /
+ * interpretation of the licence. \__/
+ */
+
+
+Dynamic Universal Music Bibliotheque, Version 0.9.3
+
+Copyright (C) 2001-2005 Ben Davis, Robert J Ohannessian and Julien Cugniere
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event shall the authors be held liable for any damages arising from the
+use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim
+ that you wrote the original software. If you use this software in a
+ product, you are requested to acknowledge its use in the product
+ documentation, along with details on where to get an unmodified version of
+ this software, but this is not a strict requirement.
+
+ [Note that the above point asks for a link to DUMB, not just a mention.
+ Googling for DUMB doesn't help much! The URL is "http://dumb.sf.net/".]
+
+ [The link was originally strictly required. This was changed for two
+ reasons. Firstly, if many projects request an acknowledgement, the list of
+ acknowledgements can become quite unmanageable. Secondly, DUMB was placing
+ a restriction on the code using it, preventing people from using the GNU
+ General Public Licence which disallows any such restrictions. See
+ http://www.gnu.org/philosophy/bsd.html for more information on this
+ subject. However, if DUMB plays a significant part in your project, we do
+ urge you to acknowledge its use.]
+
+2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+
+3. This notice may not be removed from or altered in any source distribution.
+
+4. If you are using the Program in someone else's bedroom on any Monday at
+ 3:05 pm, you are not allowed to modify the Program for ten minutes. [This
+ clause provided by Inphernic; every licence should contain at least one
+ clause, the reasoning behind which is far from obvious.]
+
+5. Users who wish to use DUMB for the specific purpose of playing music are
+ required to feed their dog on every full moon (if deemed appropriate).
+ [This clause provided by Allefant, who couldn't remember what Inphernic's
+ clause was.]
+
+6. No clause in this licence shall prevent this software from being depended
+ upon by a product licensed under the GNU General Public Licence. If such a
+ clause is deemed to exist, Debian, then it shall be respected in spirit as
+ far as possible and all other clauses shall continue to apply in full
+ force.
+
+8. Take the number stated as introducing this clause. Multiply it by two,
+ then subtract four. Now insert a '+' between the two digits and evaluate
+ the resulting sum. Call the result 'x'. If you have not yet concluded that
+ every numbered clause in this licence whose ordinal number is strictly
+ greater than 'x' (with the exception of the present clause) is null and
+ void, Debian, then you are hereby informed that laughter is good for one's
+ health and you are warmly suggested to do it. By the way, Clauses 4, 5 and
+ 6 are null and void. Incidentally, I like Kubuntu. The work you guys do is
+ awesome. (Lawyers, on the other hand ...)
+
+We regret that we cannot provide any warranty, not even the implied warranty
+of merchantability or fitness for a particular purpose.
+
+Some files generated or copied by automake, autoconf and friends are
+available in an extra download. These fall under separate licences but are
+all free to distribute. Please check their licences as necessary.
--- /dev/null
+++ b/readme.txt
@@ -1,0 +1,541 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readme.txt - General information on DUMB. / / \ \
+ * | < / \_
+ * | \/ /\ /
+ * \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+
+********************
+*** Introduction ***
+********************
+
+
+Thank you for downloading DUMB v0.9.3! You should have the following
+documentation:
+
+ readme.txt - This file
+ licence.txt - Conditions for the use of this software
+ release.txt - Release notes and changes for this and past releases
+ docs/
+ howto.txt - Step-by-step instructions on adding DUMB to your project
+ faq.txt - Frequently asked questions and answers to them
+ dumb.txt - DUMB library reference
+ deprec.txt - Information about deprecated parts of the API
+ ptr.txt - Quick introduction to pointers for those who need it
+ fnptr.txt - Explanation of function pointers for those who need it
+ modplug.txt - Our official position regarding ModPlug Tracker
+
+This file will help you get DUMB set up. If you have not yet done so, please
+read licence.txt and release.txt before proceeding. After you've got DUMB set
+up, please refer to the files in the docs/ directory at your convenience. I
+recommend you start with howto.txt.
+
+
+****************
+*** Features ***
+****************
+
+
+Here is the statutory feature list:
+
+- Freeware
+
+- Supports playback of IT, XM, S3M and MOD files
+
+- Faithful to the original trackers, especially IT; if it plays your module
+ wrongly, please tell me so I can fix the bug! (But please don't complain
+ about differences between DUMB and ModPlug Tracker; see docs/modplug.txt)
+
+- Accurate support for low-pass resonant filters for IT files
+
+- Very accurate timing and pitching; completely deterministic playback
+
+- Click removal
+
+- Facility to embed music files in other files (e.g. Allegro datafiles)
+
+- Three resampling quality settings: aliasing, linear interpolation and cubic
+ interpolation
+
+- Number of samples playing at once can be limited to reduce processor usage,
+ but samples will come back in when other louder ones stop
+
+- All notes will be present and correct even if you start a piece of music in
+ the middle
+
+- Option to take longer loading but seek fast to any point before the music
+ first loops (seeking time increases beyond this point)
+
+- Audio generated can be used in any way; DUMB does not necessarily send it
+ straight to a sound output system
+
+- Can be used with Allegro, can be used without (if you'd like to help make
+ DUMB more approachable to people who aren't using Allegro, please contact
+ me)
+
+- Makefile provided for DJGPP, MinGW, Linux, BeOS and Mac OS X
+
+- Project files provided for MSVC 6
+
+- Autotools-based configure script available as a separate download for
+ masochists
+
+- Code should port anywhere that has a 32-bit C compiler; instructions on
+ compiling it manually are available further down
+
+
+*********************
+*** What you need ***
+*********************
+
+
+To use DUMB, you need a 32-bit C compiler (GCC and MSVC are fine). If you
+have Allegro, DUMB can integrate with its audio streams and datafiles, making
+your life easier. If you do not wish to use Allegro, you will have to do some
+work to get music playing back. The 'dumbplay' example program requires
+Allegro.
+
+ Allegro - http://alleg.sf.net/
+
+
+**********************************************
+*** How to set DUMB up with DJGPP or MinGW ***
+**********************************************
+
+
+You should have got the .zip version. If for some reason you got the .tar.gz
+version instead, you may have to convert make/config.bat to DOS text file
+format. WinZip does this automatically by default. Otherwise, loading it into
+MS EDIT and saving it again should do the trick (but do not do this to the
+Makefiles as it destroys tabs). You will have to do the same for any files
+you want to view in Windows Notepad. If you have problems, just go and
+download the .zip instead.
+
+Make sure you preserved the directory structure when you extracted DUMB from
+the archive. Most unzipping programs will do this by default, but pkunzip
+requires you to pass -d. If not, please delete DUMB and extract it again
+properly.
+
+If you are using Windows, open an MS-DOS Prompt or a Windows Command Line.
+Change to the directory into which you unzipped DUMB.
+
+If you are using MinGW (and you haven't renamed 'mingw32-make'), type:
+
+ mingw32-make
+
+Otherwise, type the following:
+
+ make
+
+DUMB will ask you whether you wish to compile for DJGPP or MinGW. Then it
+will ask you whether you want support for Allegro. (You have to have made and
+installed Allegro's optimised library for this to work.) Finally, it will
+compile optimised and debugging builds of DUMB, along with the example
+programs. When it has finished, run one of the following to install the
+libraries:
+
+ make install
+ mingw32-make install
+
+All done! If you ever need the configuration again (e.g. if you compiled for
+DJGPP before and you want to compile for MinGW now), run one of the
+following:
+
+ make config
+ mingw32-make config
+
+See the comments in the Makefile for other targets.
+
+Note: the Makefile will only work properly if you have COMSPEC or ComSpec set
+to point to command.com or cmd.exe. If you set it to point to a Unix-style
+shell, the Makefile won't work.
+
+Please let me know if you have any trouble.
+
+As an alternative, MSYS users may attempt to use the configure script,
+available in dumb-0.9.3-autotools.tar.gz. This has been found to work without
+Allegro, and is untested with Allegro. I should appreciate feedback from
+anyone else who tries this. I do not recommend its use, partly because it
+creates dynamically linked libraries and I don't know how to stop it from
+doing that (see the section on compiling DUMB manually), and partly because
+autotools are plain evil.
+
+Scroll down for information on the example programs. Refer to docs/howto.txt
+when you are ready to start programming with DUMB. If you use DUMB in a game,
+let me know - I might decide to place a link to your game on DUMB's website!
+
+
+******************************************************
+*** How to set DUMB up with Microsoft Visual C++ 6 ***
+******************************************************
+
+
+If you have a newer version of Microsoft Visual C++ or Visual Something that
+supports C++, please try these instructions and let me know if it works.
+
+You should have got the .zip version. If for some reason you got the .tar.gz
+version instead, you may have to convert some files to DOS text file format.
+WinZip does this automatically by default. Otherwise, loading such files into
+MS EDIT and saving them again should do the trick. You will have to do this
+for any files you want to view in Windows Notepad. If you have problems, just
+go and download the .zip instead.
+
+Make sure you preserved the directory structure when you extracted DUMB from
+the archive. Most unzipping programs will do this by default, but pkunzip
+requires you to pass -d. If not, please delete DUMB and extract it again
+properly.
+
+DUMB comes with a workspace Microsoft Visual C++ 6, containing projects for
+the DUMB core, the Allegro interface library and each of the examples. The
+first thing you might want to do is load the workspace up and have a look
+around. You will find it in the dumb\vc6 directory under the name dumb.dsw.
+Note that the aldumb and dumbplay projects require Allegro, so they won't
+work if you don't have Allegro. Nevertheless, dumbplay is the best-commented
+of the examples, so do have a look.
+
+When you are ready to add DUMB to your project, follow these instructions:
+
+1. Open your project in VC++.
+2. Select Project|Insert Project into Workspace...
+3. Navigate to the dumb\vc6\dumb directory and select dumb.dsp.
+ Alternatively, if you know that you are statically linking with a library
+ that uses the statically linked multithreaded runtime (/MT), you may wish
+ to select dumb_static.dsp in the dumb_static subdirectory instead.
+4. Select Build|Set Active Configuration..., and reselect one of your
+ project's configurations.
+5. Select Project|Dependencies... and ensure your project is dependent on
+ DUMB.
+6. Select Project|Settings..., Settings for: All Configurations, C/C++ tab,
+ Preprocessor category. Add the DUMB include directory to the Additional
+ Include Directories box.
+7. Ensure that for all the projects in the workspace (or more likely just all
+ the projects in a particular dependency chain) the run-time libraries are
+ the same. That's in Project|Settings, C/C++ tab, Code generation category,
+ Use run-time library dropdown. The settings for Release and Debug are
+ separate, so you'll have to change them one at a time. Exactly which run-
+ time library you use will depend on what you need; it doesn't appear that
+ DUMB has any particular requirements, so set it to whatever you're using
+ now. (It will have to be /MD, the multithreaded DLL library, if you are
+ statically linking with Allegro. If you are dynamically linking with
+ Allegro than it doesn't matter.)
+8. If you are using Allegro, do some or all of the above for the aldumb.dsp
+ project in the aldumb directory too.
+
+Good thing you only have to do all that once ... or twice ...
+
+If you have the Intel compiler installed, it will - well, should - be used to
+compile DUMB. The only setting I [Tom Seddon] added is /QxiM. This allows the
+compiler to use PPro and MMX instructions, and so when compiling with Intel
+the resultant EXE will require a Pentium II or greater. I don't think this is
+unreasonable. After all, it is 2003 :)
+
+[Note from Ben: the Intel compiler is evil! It makes AMD processors look bad!
+Patch it or boycott it or something!]
+
+If you don't have the Intel compiler, VC will compile DUMB as normal.
+
+This project file and these instructions were provided by Tom Seddon (I hope
+I got his name right; I had to guess it from his e-mail address!). Chad
+Austin has since changed the project files around, and I've just attempted to
+hack them to incorporate new source files. I've also tried to update the
+instructions using guesswork and some knowledge of Visual J++ (you heard me).
+The instructions and the project files are to this day untested by me. If you
+have problems, check the download page at http://dumb.sf.net/ to see if they
+are addressed; failing that, direct queries to me and I'll try to figure them
+out.
+
+If you have any comments at all on how the VC6 projects are laid out, or how
+the instructions could be improved, I should be really grateful to hear them.
+I am a perfectionist, after all. :)
+
+Scroll down for information on the example programs. When you are ready to
+start using DUMB, refer to docs/howto.txt. If you use DUMB in a game, let me
+know - I might decide to place a link to your game on DUMB's website!
+
+
+******************************************************
+*** How to set DUMB up on Linux, BeOS and Mac OS X ***
+******************************************************
+
+
+You should have got the .tar.gz version. If for some reason you got the .zip
+version instead, you may have to strip all characters with ASCII code 13 from
+some of the text files. If you have problems, just go and download the
+.tar.gz instead.
+
+You have two options. There is a Makefile which should cope with most
+systems. The first option is to use this default Makefile, and the procedure
+is explained below. The second option is to download
+dumb-0.9.3-autotools.tar.gz, extract it over the installation, run
+./configure and use the generated Makefile. Users who choose to do this are
+left to their own devices but advised to read the information at the end of
+this section. I strongly recommend the first option.
+
+If you are not using the configure script, the procedure is as follows.
+
+First, run the following command as a normal user:
+
+ make
+
+You will be asked whether you want Allegro support. Then, unless you are on
+BeOS, you will be asked where you'd like DUMB to install its headers,
+libraries and examples (which will go in the include/, lib/ and bin/
+subdirectories of the prefix you specify). BeOS has fixed locations for these
+files. You may use shell variables here, e.g. $HOME or ${HOME}, but ~ will+not work. Once you have specified these pieces of information, the optimised
+and debugging builds of DUMB will be compiled, along with the examples. When
+it has finished, you can install them with:
+
+ make install
+
+You may need to be root for this to work. It depends on the prefix you chose.
+
+Note: the Makefile will only work if COMSPEC and ComSpec are both undefined.
+If either of these is defined, the Makefile will try to build for a Windows
+system, and will fail.
+
+Please let me know if you have any trouble.
+
+Scroll down for information on the example programs. Refer to docs/howto.txt
+when you are ready to start programming with DUMB. If you use DUMB in a game,
+let me know - I might decide to place a link to your game on DUMB's website!
+
+Important information for users of the configure script follows.
+
+The Makefile generated by the configure script creates dynamically linked
+libraries, and I don't know how to stop it from doing so. See the section
+below on building DUMB manually for why I recommend linking DUMB statically.
+However, if you choose to use the configure script, note the following.
+
+The default Makefile is a copy of Makefile.rdy (short for 'ready'), and it
+must exist with the name Makefile.rdy in order to work. The configure script
+will overwrite Makefile, so if you want the default Makefile back, just run:
+
+ cp Makefile.rdy Makefile
+
+Do not use a symlink, as that would result in Makefile.rdy getting
+overwritten next time the configure script is run!
+
+You can also access the usual build system by passing '-f Makefile.rdy' to
+Make.
+
+
+********************************************************
+*** How to build DUMB manually if nothing else works ***
+********************************************************
+
+
+Those porting to platforms without floating point support should be aware
+that DUMB does use floating point operations but not in the inner loops. They
+are used for volume and note pitch calculations, and they are used when
+initialising the filter algorithm for given cut-off and resonance values.
+Please let me know if this is a problem for you. If there is enough demand, I
+may be able to eliminate one or both of these cases.
+
+All of the library source code may be found in the src/ subdirectory. There
+are headers in the include/ subdirectory, and src/helpers/resample.c also
+#includes some .inc files in its own directory.
+
+There are four subdirectories under src/. For projects not using Allegro, you
+will need all the files in src/core/, src/helpers/ and src/it/. If you are
+using Allegro, you will want the src/allegro/ subdirectory too. For
+consistency with the other build systems, the contents of src/allegro/ should
+be compiled into a separate library.
+
+I recommend static-linking DUMB, since the version information is done via
+macros and the API has a tendency to change. If you static-link, then once
+your program is in binary form, you can be sure that changes to the installed
+version of DUMB won't cause it to malfuction. It is my fault that the API has
+been so unstable. Sorry!
+
+Compile each .c file separately. As mentioned above, you will need to specify
+two places to look for #include files: the include/ directory and the source
+file's own directory. You will also need to define the symbol
+DUMB_DECLARE_DEPRECATED on the command line.
+
+Do not compile the .inc files separately.
+
+You may need to edit dumb.h and add your own definition for LONG_LONG. It
+should be a 64-bit integer. If you do this, please see if you can add a check
+for your compiler so that it still works with other compilers.
+
+DUMB has two build modes. If you define the symbol DEBUGMODE, some checks for
+programmer error will be incorporated into the library. Otherwise it will be
+built without any such checks. (DUMB will however always thoroughly check the
+validity of files it is loading. If you ever find a module file that crashes
+DUMB, please let me know!)
+
+I recommend building two versions of the library, one with DEBUGMODE defined
+and debugging information included, and the other with compiler optimisation
+enabled. If you can install DUMB system-wide so that your projects, and other
+people's, can simply #include <dumb.h> or <aldumb.h> and link with libraries
+by simple name with no path, then that is ideal.
+
+If you successfully port DUMB to a new platform, please let me know!
+
+
+****************************
+*** The example programs ***
+****************************
+
+
+Three example programs are provided. On DOS and Windows, you can find them in
+the examples subdirectory. On other systems they will be installed system-
+wide.
+
+dumbplay
+ This program will only be built if you have Allegro. Pass it the filename
+ of an IT, XM, S3M or MOD file, and it will play it. It's not a polished
+ player with real-time threading or anything - so don't complain about it
+ stuttering while you use other programs - but it does show DUMB's fidelity
+ nicely. You can control the playback quality by editing dumb.ini, which
+ must be in the current working directory. (This is a flaw for systems
+ where the program is installed system-wide, but it is non-fatal.) Have a
+ look at the examples/dumb.ini file for further information.
+
+dumbout
+ This program does not need Allegro. You can use it to stream an IT, XM,
+ S3M or MOD file to raw PCM. This can be used as input to an encoder like
+ oggenc (with appropriate command-line options), or it can be sent to a
+ .pcm file which can be read by any respectable waveform editor. This
+ program is also convenient for timing DUMB. Compare the time it takes to
+ render a module with the module's playing time! dumbout doesn't try to
+ read any configuration file; the options are set on the command line.
+
+dumb2wav
+ This program is much the same as dumbout, but it writes a .wav file with
+ the appropriate header. Thanks go to Chad Austin for this useful tool.
+
+
+*********************************************
+*** Downloading music or writing your own ***
+*********************************************
+
+
+If you would like to compose your own music modules, then this section should
+help get you started.
+
+The best programs for the job are the trackers that pioneered the file
+formats:
+
+ Impulse Tracker - IT files - http://www.lim.com.au/ImpulseTracker/
+ Fast Tracker II - XM files - http://www.fasttracker2.com/
+ Scream Tracker 3 - S3M files - No official site known, please use Google
+
+MOD files come from the Amiga; I do not know what PC tracker to recommend for
+editing these. If you know of one, let me know! In the meantime, I would
+recommend using a more advanced file format. However, don't convert your
+existing MODs just for the sake of it.
+
+Fast Tracker II is Shareware. It offers a very flashy interface and has a
+game embedded, but the IT file format is more powerful and better defined. By
+all means try them both and see which you prefer; it is largely a matter of
+taste (and, in some cases, religion). Impulse Tracker and Scream Tracker 3
+are Freeware, although you can donate to Impulse Tracker and receive a
+slightly upgraded version. DUMB is likely to be at its best with IT files.
+
+These editors are DOS programs. Users of DOS-incapable operating systems may
+like to try ModPlug Tracker, but should read docs/modplug.txt before using it
+for any serious work. If you use a different operating system, or if you know
+of any module editors for Windows that are more faithful to the original
+trackers' playback, please give me some links so I can put them here!
+
+ ModPlug Tracker - http://www.modplug.com/
+
+If you have an x86 Linux system with VGA-compatible hardware (which covers
+all PC graphics cards I've ever seen), you should be able to get Impulse
+Tracker running with DOSEMU. You will have to give it access to the VGA ports
+and run it in a true console, as it will not work with the X-based VGA
+emulation. I personally added the SB16 emulation to DOSEMU, so you can even
+use filters! However, it corrupts samples alarmingly often when saving on my
+system - probably a DOSEMU issue. If you set this up, I am curious to know
+whether it works for you.
+
+ DOSEMU - http://www.dosemu.org/
+
+BEWARE OF WINAMP! Although it's excellent for MP3s, it is notorious for being
+one of the worst module players in existence; very many modules play wrongly
+with it. There are plug-ins available to improve Winamp's module support, for
+example WSP.
+
+ Winamp - http://www.winamp.com/
+ WSP - http://www.spytech.cz/index.php?sec=demo
+
+(There is a Winamp plug-in that uses DUMB, but it is unreliable. If anyone
+would like to work on it, please get in touch.)
+
+While I am at it I should also point out that Winamp is notorious for
+containing security flaws. Install it at your own risk, and if it is your
+work computer, check with your boss first!
+
+Samples and instruments are the building blocks of music modules. You can
+download samples at
+
+ http://www.tump.net/
+
+If you would like to download module files composed by other people, check
+the following sites:
+
+ http://www.modarchive.com/
+ http://www.scene.org/
+ http://www.tump.net/
+ http://www.homemusic.cc/main.php
+ http://www.modplug.com/
+
+Once again, if you know of more sites where samples or module files are
+available for download, please let me know.
+
+If you wish to use someone's music in your game, please respect the
+composer's wishes. In general, you should ask the composer. Music that has
+been placed in the Public Domain can be used by anyone for anything, but it
+wouldn't do any harm to ask anyway if you know who the author is. In many
+cases the author will be thrilled, so don't hesitate!
+
+A note about converting modules from one format to another, or converting
+from MIDI: don't do it, unless you are a musician and are prepared to go
+through the file and make sure everything sounds the way it should! The
+module formats are all slightly different, and MIDI is very different;
+converting from one format to another will usually do some damage.
+
+Instead, it is recommended that you allow DUMB to interpret the original file
+as it sees fit. DUMB may make mistakes (it does a lot of conversion on
+loading), but future versions of DUMB will be able to rectify these mistakes.
+On the other hand, if you convert the file, the damage is permanent.
+
+
+***********************
+*** Contact details ***
+***********************
+
+
+If you have trouble with DUMB, or want to contact me for any other reason, my
+e-mail address is given below. Please do get in touch, even if I appear to
+have disappeared!
+
+If you wish to chat online about something, perhaps on IRC, that can most
+likely be arranged. Send me an e-mail.
+
+
+******************
+*** Conclusion ***
+******************
+
+
+This is the conclusion.
+
+
+Ben Davis
+entheh@users.sf.net
--- /dev/null
+++ b/release.txt
@@ -1,0 +1,561 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * release.txt - Release notes for DUMB. / / \ \
+ * | < / \_
+ * | \/ /\ /
+ * \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+
+*******************************************
+*** DUMB v0.9.3, released 7 August 2005 ***
+*******************************************
+
+Hello! Welcome to a long-awaited-or-probably-just-given-up-on-by-everybody
+release! New to this release are lower memory usage, faster mixing loops,
+loading of text fields in the module files, and faster load functions for
+projects that don't need to seek within the module or know its length.
+Additionally, Chad Austin has contributed a dumb2wav tool for converting
+modules to .wav files and updated the Visual Studio 6 project files to
+compile all the examples as well as the library. Users of Unix-like systems
+will be pleased to know that on Chad's suggestion I have made the build
+system cope with variables such as $HOME or ${HOME} in the prefix.+
+Chad has also contributed an Autotools build system, but neither of us
+recommends its use. The Autotools are an evil black box, we haven't quite
+managed to get it right, and goodness help you if it happens not to work for
+you. The files are available in a separate download if you absolutely need
+them. Notice that that download is almost twice as large as the rest of DUMB!
+
+Maybe we'll do SCons next time.
+
+Thanks to Chad for all his work. Chad is the author of Audiere, a portable
+sound library which has started using DUMB for its module playback! Wahoo!
+
+ http://audiere.sf.net/
+
+There are three main optimisations that went into the mixing loops.
+
+First, I downloaded ModPlugXMMS and had a peek at the mixing code, which is
+Public Domain. It uses look-up tables for the cubic mixing. I pinched the
+idea, and that sped DUMB's cubic (best quality) resamplers up by a factor of
+two or three.
+
+Secondly, the samples loaded from the file are now kept in 8-bit or 16-bit
+format, whereas previously they were being converted to 24-bit-in-32-bit on
+loading. This means the samples occupy a half or a quarter of the memory they
+used to occupy. It also had the side-effect of speeding up the mixing loops,
+but it meant I had to duplicate the resampling code. (It is all done with
+macros in the source code, but it becomes two copies on the binary level.)
+
+Secondly, stereo samples and stereo mixing buffers are now kept in
+interleaved format, where previously the two channels were done separately to
+keep the code simpler. This change has made the library quite a bit bigger,
+but has made the code run almost twice as fast for stereo output (tested for
+modules whose samples are mostly mono)!
+
+DUMB is now as fast as ModPlugXMMS on my system.
+
+Some people have also commented that DUMB seems to take a long time loading
+files. This is because immediately upon loading the file it runs the playback
+engine over it up as far as the point of first loop, taking snapshots at 30-
+second intervals to be used as references for fast seeking and finally
+storing the playback time. Of course, most games don't need this. You can now
+skip it by calling the _quick versions of the dumb_load_*(), dumb_read_*() or
+dumb_register_dat_*() functions. Should you need the data later, you can call
+dumb_it_do_initial_runthrough() to calculate it. Please note that this cannot
+currently be done safely from a concurrent thread while the music is playing.
+
+As mentioned, DUMB loads the text fields in module files now. You can
+retrieve the song title with duh_get_tag(). Sample names and file names and
+instrument names and filenames, and the song message for IT files, are
+available with a call to duh_get_it_sigdata() and various dumb_it_sd_*()
+functions. Please note that text fields added as extensions by ModPlug
+Tracker are not supported.
+
+DUMB's timing is ever so slightly more accurate. This is hardly noticeable,
+but it has meant that the length computed will increase very slightly.
+
+There are many small playback fixes in this release:
+
+* The Lxx effect in XM files (set envelope position) is now supported.
+
+* Pattern looping is now correct for XM files. Bizarrely, an ordinary pattern
+ loop whose start point isn't the first row seems to cause the next pattern
+ to start at the row corresponding to the loop start point. That must have
+ been a headache for people creating XM files! Nevertheless, DUMB now
+ emulates this behaviour. If you have an XM file that was written in a
+ tracker other than Fast Tracker II and breaks in DUMB, you can get around
+ it by putting a D00 effect (break to row 0) right at the end of the pattern
+ containing the loop.
+
+* XM pattern looping can be infinite. DUMB should detect this and call the
+ loop callback when it happens. Specifically, it has a loop counter for each
+ channel, so each time it sets or decrements that counter, it remembers the
+ loop end point for that channel. When the loop terminates, the loop end
+ point is reset to 0. If the loop end point ever decreases during a loop,
+ the loop callback is called. If anyone manages to get around this check and
+ prevent DUMB from calling the callback, please let me know and send me an
+ illustrative XM file!
+
+* For IT files, notes are now removed from channels if they have faded out,
+ even if they are still in the foreground. After this has happened, a row
+ with a note and Gxx (tone portamento) specified will cause a new note to
+ start playing, which is what Impulse Tracker does in this scenario.
+ (Normally, Gxx prevents the new note from playing and instead causes the
+ old note to start sliding towards the new note.)
+
+* If a tone portamento command occurred when no note was playing, the effect
+ value wasn't stored. This has been fixed. Thanks to Maim from #trax on
+ EFnet for discovering this bug.
+
+* DUMB now treats the parameter to the undocumented XM key off effect Kxx as
+ a delay, consistent with Fast Tracker II's behaviour. It has also been made
+ not to clear the note, so a subsequent volume command will restore it, as
+ in Fast Tracker II.
+
+* DUMB used to process the first row when you created the
+ DUMB_IT_SIGRENDERER. This happened before you had a chance to install any
+ callbacks. If an F00 effect occurred on the first row, the music would stop
+ immediately and the xm_speed_zero callback would be called if it were
+ present. Unfortunately, it wasn't present, and the algorithm for
+ calculating the length subsequently went into an endless loop while waiting
+ for it. Worse still, the same algorithm accumulated data for fast seeking,
+ and never stopped, so it pretty quickly consumed all the resources. DUMB
+ will now not process the first row until you first request some samples,
+ provided you pass zero for pos. Of course, any MOD or XM file with F00 in
+ the very first row won't do much anyway, but such files won't crash the
+ library now.
+
+* There was a subtle bug that affected a few XM files. For instruments with
+ no associated samples, the array mapping notes to samples is uninitialised.
+ This became a problem if such instruments were then used, which does happen
+ sometimes. On many systems, memory is initialised to zero when first given
+ to a program (for security reasons), so the problem didn't come up most of
+ the time. However, on platforms like DOS where memory isn't initialised, or
+ in programs that reuse memory later on (this includes the XMMS plug-in with
+ which I discovered the bug), a rogue note would occasionally play. This has
+ now been fixed.
+
+* DUMB's envelope handling for IT files was subtly wrong. Upon note off, it
+ stopped obeying the sustain loop points one tick too early. Notes were
+ often shorter than they should have been, and in pathological cases a whole
+ extra iteration of the sustain loop section might have been skipped. The
+ envelope code has now been rewritten. Thanks go to Allefant for Valgrinding
+ the new code!
+
+Finally, there were two build problems in the last version, which were fixed
+in the download marked with -fixed. They are of course correct in this
+version. For the record:
+
+* The make/config.bat file, responsible for generating make/config.txt, wrote
+ a crucial line to the wrong place, causing it to be left out of the file.
+ As a result, the makefile would fail to install everything for Allegro
+ users, and enter infinite recursion for other users. This applied to people
+ using DJGPP and MinGW.
+
+* DUMB's Makefile was supposed to install the example programs on Unix-based
+ platforms, but it wasn't doing. The fix was to edit Makefile and change the
+ one occurrence of $COMSPEC to $(COMSPEC).
+
+That's it! I hope you enjoy this long-awaited-or-probably-just-given-up-on-
+by-everybody release of DUMB!
+
+
+******************************************
+*** DUMB v0.9.2, released 2 April 2003 ***
+******************************************
+
+Yes, there really has been a release. This is not a day-late April fools'
+joke.
+
+DUMB's full name has changed! The old "Dedicated Universal Music
+Bastardisation" was rather silly, and not much more than a forced attempt at
+finding words beginning with D, U, M and B. I spent weeks and weeks browsing
+dictionaries and hopelessly asking others for bright ideas, until the
+brilliant Chris "Kitty Cat" Robinson came up with "Dynamic". I decided to
+keep the U as Universal, since a DUH struct can hold digital music in any
+format. Now all that remained was the B, but it didn't take me long to come
+up with Bibliotheque, which, despite looking French, is indeed considered an
+English word by Oxford English Dictionary Online, to which my university has
+a subscription. So there you have it - the name now makes sense.
+
+The two most significant additions to the project would have to be the new
+thread safety (with an important restriction, detailed in docs/dumb.txt), and
+the new build system. The silly 'makeall' and 'makecore' scripts are gone. If
+you are a GCC user, all you need do now is run 'make' and 'make install', as
+for other projects. You don't even have to run a 'fix' script any more! There
+are some caveats, which are covered in readme.txt. If you use Microsoft
+Visual C++ 6, you no longer need to obtain GCC and GNU Make - there is a
+project file just for you.
+
+Huge thanks go to Steve Terry for testing on Windows XP - about five times -
+and to lillo for testing on BeOS and Mac OS X. Thanks also to X-G for testing
+on a Windows system that has consistently posed problems for DUMB's old
+makefiles.
+
+There was a bug whereby al_poll_duh() would sometimes cause the music to
+resume playing if you called it after al_pause_duh(). Whether this was DUMB's
+fault for misusing Allegro's API, or a bug in Allegro, is unclear, but this
+release makes it work.
+
+In one of my projects, I found that my AL_DUH_PLAYER stopped playing when
+there were lots of other sound effects. In order to fix this, I programmed
+DUMB to set the priority of the stream's voice to 255, the maximum. I also
+added al_duh_set_priority(), so you can set the priority yourself if you need
+to.
+
+The resampling code has undergone a transformation. The bad news is that the
+linear average code is no longer in use. The good news is that where DUMB's
+resamplers used to require three extra samples' worth of memory to be
+allocated and initialised, it now copes with just the sample data. And it
+does a very good job at bouncing off loop points and otherwise hurtling
+around the sample. The resampling code is considerably more complicated, but
+the code that uses the resamplers is considerably simpler - and if you
+noticed a slight click in some bidirectionally looping samples, you'll be
+pleased to know that that click is gone!
+
+I have also devoted some effort to optimisation. It seemed hopeless for a
+while, but then I actually figured out a way of making it faster AND more
+accurate at the same time! DUMB is now quite a bit faster than it was, and it
+mixes not with 16-bit precision, but with 24-bit precision. (It used 32-bit
+integers all along, but the difference is that it now makes use of 256 times
+as much of the integer's range.)
+
+There have been the usual improvements to playback. The last release occurred
+rather too soon after I had fixed the XM effect memories; EAx and EBx, fine
+volume ramps, had been neglected. These are now handled properly.
+
+In previous versions of DUMB, muted channels in IT were actually played with
+surround sound panning (where the right-hand channel is inverted). This has
+been fixed, so muted channels will really be muted now.
+
+There were also some subtle problems with the way DUMB handled New Note
+Actions for IT files. It turned out that, in all releases of DUMB so far,
+pitch, filter and panning envelopes and sample vibrato were not being
+processed for any note that was forced into the background by a new note on
+the same channel! This only affected IT files. Not only has this been fixed,
+but envelope interpolation is much more accurate. Long trailing envelope-
+driven fade-outs sound a lot better now!
+
+Since panning and filter envelopes are more precise, extra fields have been
+added to the DUMB_IT_CHANNEL_STATE struct, used by
+dumb_it_sr_get_channel_state(). These fields hold the 'decimal' parts of the
+pan and filter cut-off. See dumb.txt for details.
+
+Mxx (set channel volume) now correctly only modifies the last note played on
+the channel, not any previous notes that have been forced into the background
+by New Note Actions, and filter effect processing is now closer to what
+Impulse Tracker does.
+
+The XM loader was slightly flawed and could crash on files containing samples
+with out-of-range loop points. One such file was given to me. This has been
+fixed.
+
+Finally, the legal stuff. Julien Cugniere has been added to the list of
+copyright owners. He deserves it, for all the work he did on the XM support!
+And the licence has been changed. You are no longer required to include a
+link to DUMB in a project that uses DUMB; the reasons for this relaxation are
+explained in licence.txt. However, the request is still there ...
+
+As usual, enjoy!
+
+
+**********************************************
+*** DUMB v0.9.1, released 19 December 2002 ***
+**********************************************
+
+Hi again! Lots to say this time, so I shall cut right to the chase.
+
+DUMB now supports Impulse Tracker's low-pass resonant filters! Huge thanks go
+to Jeffrey Lim, author of Impulse Tracker, for giving me what information he
+still had regarding the algorithm; to cut a long story short, modifying
+ModPlug Tracker's source code (which is in the Public Domain) led to an
+algorithm whose output matched Impulse Tracker's perfectly.
+
+Please note that ModPlug Tracker's filters as they stand do not match Impulse
+Tracker's, and I have no interest in supporting ModPlug Tracker's variant
+(especially not the integer rounding problems). Please see docs/modplug.txt,
+new in this release, for details.
+
+Thanks also go to Fatso Huuskonen for motivating me to add filter support,
+and providing me with several great IT files to test it with!
+
+The other important feature added for this release is click removal. Up until
+now, DUMB has generated clicks when cutting notes, starting samples in the
+middle, and so on. This version of DUMB will remove any such clicks. Note
+that DUMB does not use volume ramps to accomplish this; the algorithm will
+not take the bite out of the music!
+
+In other news, DUMB now supports sample vibrato for IT files, and instrument
+vibrato for XM files. A slight bug in New Note Action handling for IT files
+has been fixed; Note Fade will not break the sustain loops of the sample and
+envelope, as it did before. Tremor handling (Ixy) had a strange bug in it,
+which has been fixed.
+
+Support for XM files has been greatly enhanced. The XM envelope handling new
+in the last release contained a huge bug, resulting in notes seeming not to
+stop when they should; this has been fixed. Some XM files crashed DUMB, while
+others failed to load; these problems have been solved. Effect memories now
+work properly for XM and MOD files, to the best of my knowledge. Some other
+differences between IT and XM have been accounted for, most notably the
+Retrigger Note effects, Rxy and E9x.
+
+DUMB's sound quality and accuracy are not the only areas that have been
+enhanced. The API has been expanded, at last. You can now detect when a
+module loops, or make it play through just once. You can ask DUMB to inform
+you every time it generates some samples; this is useful for visualisation.
+For IT files, you can intercept the MIDI messages generated by Zxx macros,
+enabling you to synchronise your game with the music to some extent. (There
+is no such method for XM, S3M or MOD files yet; sorry. Also note that the
+function will be called before you actually hear the sound; I cannot improve
+this until DUMB has its own sound drivers, which won't be for a while.) You
+can query the current order and row. Finally, operations like changing the
+speed and tempo are now possible, and you can query the playback state on
+each channel.
+
+Some parts of DUMB's API have been deprecated. Simple programs that use
+Allegro will be unaffected, but if you get some compiler warnings or errors,
+please review docs/deprec.txt. This file explains why those parts of the API
+were deprecated, and tells you how to adapt your code; the changes you need
+to make are straightforward. Sorry for the inconvenience.
+
+For various reasons, I have made DUMB's makefiles use different compiler
+flags depending on your GCC version (unless you are using MSVC). There is no
+elegant way of getting the makefiles to detect when GCC is upgraded. If you
+upgrade GCC, you should execute 'make clean' in order to make DUMB detect the
+GCC version again. Otherwise you may get some annoying error messages. (It is
+wise to do this in any case, so that all the object files are built with the
+same GCC version.)
+
+DUMB's example players have been unified into a single player called
+'dumbplay'. The player has been enhanced to display messages when the music
+loops, and when XM and MOD files freeze (effect F00; more information on this
+in docs/howto.txt).
+
+Finally, as noted on DUMB's website, the release notes from the last release
+were inaccurate. It has been verified that DUMBOGG v0.5 does still work with
+that release, and still works with this release. The esoteric DUMBOGG v0.6
+has not been created yet, since DUMBOGG v0.5 still works.
+
+Please scroll down and read through the indented paragraphs in the notes for
+the last release; they are relevant for this release too.
+
+That's all folks! Until next time.
+
+
+*******************************************
+*** DUMB v0.9, released 16 October 2002 ***
+*******************************************
+
+MOD support is here! DUMB now supports all four of the common module formats.
+As usual, there have also been some improvements to the way modules are
+played back. Most notably, handling of tone portamento in IT files has been
+improved a lot, and XM envelopes are now processed correctly.
+
+The other major change is that DUMB now does a dummy run through each module
+on loading. It stores the playback state at thirty-second intervals. It stops
+when the module first loops, and then stores the playback time. This results
+in a slightly longer load time and a greater memory overhead, but seeking is
+faster (to any point before the module first loops) and the length is
+calculated! duh_get_length() will return this and is now documented in
+docs/howto.txt and docs/dumb.txt.
+
+DUMB's build process has been changed to use 'mingw' wherever it used
+'mingw32' before; some directories have been renamed, and the 'fix' command
+you had to run for MinGW has been changed from 'fix mingw32' to 'fix mingw'.
+
+Last time, I directed you to scroll down and read the notes from a past
+release, but ignore this point, and that point applies to something else, and
+so on. Did anyone do so? Well, if you're reading this at all, you probably
+did. Nevertheless, this time I shall be much less confusing and restate any
+relevant information. So the least you can do is read it!
+
+- If your program ever aborts with exit code 37 while loading an IT file,
+ PLEASE LET ME KNOW! The IT file in question has a stereo compressed sample
+ in it, and the format is unspecified for this case (Impulse Tracker itself
+ doesn't use stereo samples at all). I will need the IT file in question,
+ and any information you can give me about how the IT file was created (e.g.
+ what program). (If you don't get to see an exit code, let me know anyway.)
+
+- If your program ever outputs a line resembling "Inst 01 Env: 0,64 8,32
+ 15,48" to stderr while loading an IT file, PLEASE LET ME KNOW! You have an
+ old IT file (saved by an Impulse Tracker version older than 2.00), and
+ support for such files is STILL untested.
+
+- Not all parts of DUMB's API are documented yet. You will find some
+ functions in dumb.h which are not listed in docs/dumb.txt; the reason is
+ that these functions still need work and will probably change. If you
+ really, really want to use them, talk to me first (IRC EFnet #dumb is a
+ good place for this; see readme.txt for details on using IRC). I intend to
+ finalise and document the whole of DUMB's API for Version 1.0.
+
+There have been some changes to the naming conventions in DUMB's undocumented
+API. DUMBOGG v0.5 will not work with this and subsequent releases of DUMB;
+please upgrade to DUMBOGG v0.6. These changes should not break anything in
+your own code, since you didn't use those parts of the API, did you ;)
+
+There is still a great deal of work to be done before DUMB's API can be
+finalised, and thus it will be a while before DUMB v1.0 comes out. It should
+be worth the wait. In the meantime, there will be 0.9.x releases with
+additional functionality, improved playback, and possibly support for some
+extra file formats.
+
+Finally I should like to offer an apology; there is a strong possibility that
+some of DUMB's official API will change in the near future. There will not be
+any drastic changes, and the corresponding changes to your source code will
+be simple enough. If I didn't make these changes, DUMB's API would start to
+become limited, or messy, or both, so it's for the better. I apologise in
+advance for this.
+
+Now scroll down and read the notes for the first r... oh wait, we already did
+that. I guess that's it then. You can stop reading now.
+
+Right after you've read this.
+
+And this.
+
+Off you go.
+
+Bye.
+
+
+********************************************
+*** DUMB v0.8.1, released 11 August 2002 ***
+********************************************
+
+This is a minor release that fixes a few bugs. One of these bugs, however,
+was pretty serious. dumb_register_dat_xm() was never coded! It was prototyped
+in aldumb.h, so code would compile, but there would be an unresolved symbol
+at the linking stage. This has been fixed.
+
+Platforms other than Unix did not have a working 'make veryclean' target;
+this has been fixed. In addition, the makefiles now use 'xcopy' instead of
+'copy', since on some systems GNU Make seems to have trouble calling commands
+built in to the shell.
+
+Contrary to the errata that was on the DUMB website, the makeall.sh and
+makecore.sh scripts actually DID install in /usr. This has now been
+corrected, and regardless of whether you use these scripts or call make
+directly, the files will now be installed to /usr/local by default.
+
+The XM loader used to treat stereo samples as mono samples with the data for
+the right channel positioned after the data for the left channel. This
+generally resulted in an unwanted echo effect. This has been fixed.
+
+When playing XM files, specifying an invalid instrument would cause an old
+note on that channel to come back (roughly speaking). Fast Tracker 2 does not
+exhibit this behaviour. This has been fixed.
+
+The GCC makefiles used -mpentium, which is deprecated in gcc 3.x. This was
+generating warnings, and has now been fixed.
+
+In XM files, the length of a sample is stored in bytes. DUMB was assuming
+that the length of a 16-bit sample would be even. I had two XM files where
+this was not the case, and DUMB was unable to load them. This has been fixed.
+
+In order to accommodate the extra part of the version number,
+DUMB_REVISION_VERSION has been added. DUMB_VERSION has also been added in
+order to facilitate checking if the version of DUMB installed is sufficient.
+See docs/dumb.txt for details.
+
+As a last-minute fix, the XM "Break to row" effect is now loaded properly. It
+was necessary to convert from binary-coded decimal to hexadecimal (those who
+have experience with Fast Tracker 2 will know what I mean). In short, this
+means the effect will now work properly when breaking to row 10 or greater.
+
+DUMB v0.8 had faulty release date constants; DUMB_MONTH and DUMB_DAY were
+swapped! For this reason, DUMB_DATE should not be compared against any date
+in 2002. This note has been added to docs/dumb.txt and also to dumb.h.
+
+Please scroll to the end and read the release notes for the first version,
+DUMB v0.7. Most of them apply equally to this release. However, the
+non-portable code was rewritten for DUMB v0.8, so that point does not apply.
+The point about length not being calculated also applies to XM files.
+
+Enjoy :)
+
+
+****************************************
+*** DUMB v0.8, released 14 June 2002 ***
+****************************************
+
+Welcome to the second release of DUMB!
+
+In addition to these notes, please read below the release notes for the
+previous version, DUMB v0.7. Most of them apply equally to this release.
+However, the non-portable code has been rewritten; DUMB should now port to
+big-endian platforms.
+
+The main improvement in this release of DUMB is the support for XM files.
+Enormous thanks go to Julien Cugniere for working on this while I had to
+revise for my exams!
+
+There was a mistake in the makefiles in the last release. The debugging
+Allegro interface library was mistakenly named libaldmbd.a instead of
+libaldmd.a, meaning you had to compile with -laldmbd, contrary to what the
+docs said. Apologies to everyone who lost sleep trying to work out what was
+wrong! The reason for using libaldmd.a is to maintain compatibility with
+plain DOS, where filenames are limited to eight characters (plus a three-
+letter extension). The makefiles have now been changed to match the
+information in the docs, so you may have to alter your project files
+accordingly.
+
+The example programs were faulty, and crashed on Windows if they were unable
+to load the file. It was also difficult to work out how to exit them (you had
+to click the taskbar button that didn't have a window, then press a key).
+They have been improved in both these respects.
+
+I have now added a docs/faq.txt file (Frequently Asked Questions), which is
+based on problems and misconceptions people have had with the first release.
+Please refer to it before contacting me with problems.
+
+Thanks to networm for touching up the Unix makefile and writing the
+instructions on using it.
+
+Incidentally, today (Friday 14 June) is the Robinson College May Ball at
+Cambridge Uni. God knows why it's called a May Ball if it's in June. I'm not
+going myself (72 GBP, and I'd have to wear a suit, ugh), but with all the
+noise outside I shall enjoy pumping up the speakers tonight!
+
+
+****************************************
+*** DUMB v0.7, released 2 March 2002 ***
+****************************************
+
+This is the first release of DUMB, and parts of the library are not
+crystallised. Don't let this put you off! Provided you don't try to use any
+features that aren't documented in docs/dumb.txt, the library should be rock
+solid and you should be able to upgrade more or less without problems.
+
+Here are some notes on this release:
+
+- There is some non-portable code in this release of DUMB. It is likely that
+ the library will fail to load IT files with compressed samples on
+ big-endian machines such as the Apple Macintosh.
+
+- If your program ever aborts with exit code 37 while loading an IT file,
+ PLEASE LET ME KNOW! The IT file in question has a stereo compressed sample
+ in it, and the format is unspecified for this case (Impulse Tracker itself
+ doesn't use stereo samples at all). I will need the IT file in question,
+ and any information you can give me about how the IT file was created (e.g.
+ what program). (If you don't get to see an exit code, let me know anyway.)
+
+- If your program ever outputs a line resembling "Inst 01 Env: 0,64 8,32
+ 15,48" to stderr while loading an IT file, PLEASE LET ME KNOW! You have an
+ old IT file (saved by an Impulse Tracker version older than 2.00), and
+ support for such files is untested.
+
+- The length of IT and S3M files is not currently calculated. It is just set
+ to ten minutes.
--- /dev/null
+++ b/src/core/atexit.c
@@ -1,0 +1,71 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * atexit.c - Library Clean-up Management. / / \ \
+ * | < / \_
+ * By entheh. | \/ /\ /
+ * \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+
+#include "dumb.h"
+#include "internal/dumb.h"
+
+
+
+typedef struct DUMB_ATEXIT_PROC
+{+ struct DUMB_ATEXIT_PROC *next;
+ void (*proc)(void);
+}
+DUMB_ATEXIT_PROC;
+
+
+
+static DUMB_ATEXIT_PROC *dumb_atexit_proc = NULL;
+
+
+
+int dumb_atexit(void (*proc)(void))
+{+ DUMB_ATEXIT_PROC *dap = dumb_atexit_proc;
+
+ while (dap) {+ if (dap->proc == proc) return 0;
+ dap = dap->next;
+ }
+
+ dap = malloc(sizeof(*dap));
+
+ if (!dap)
+ return -1;
+
+ dap->next = dumb_atexit_proc;
+ dap->proc = proc;
+ dumb_atexit_proc = dap;
+
+ return 0;
+}
+
+
+
+void dumb_exit(void)
+{+ while (dumb_atexit_proc) {+ DUMB_ATEXIT_PROC *next = dumb_atexit_proc->next;
+ (*dumb_atexit_proc->proc)();
+ free(dumb_atexit_proc);
+ dumb_atexit_proc = next;
+ }
+}
--- /dev/null
+++ b/src/core/duhlen.c
@@ -1,0 +1,42 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * duhlen.c - Functions to set and return the / / \ \
+ * length of a DUH. | < / \_
+ * | \/ /\ /
+ * By entheh. \_ / > /
+ * | \ / /
+ * Note that the length of a DUH is a constant | ' /
+ * stored in the DUH struct and in the DUH disk \__/
+ * format. It will be calculated on loading for
+ * other formats in which the length is not explicitly stored. Also note that
+ * it does not necessarily correspond to the length of time for which the DUH
+ * will generate samples. Rather it represents a suitable point for a player
+ * such as Winamp to stop, and in any good DUH it will allow for any final
+ * flourish to fade out and be appreciated.
+ */
+
+#include "dumb.h"
+#include "internal/dumb.h"
+
+
+
+long duh_get_length(DUH *duh)
+{+ return duh ? duh->length : 0;
+}
+
+
+
+void duh_set_length(DUH *duh, long length)
+{+ if (duh)
+ duh->length = length;
+}
--- /dev/null
+++ b/src/core/duhtag.c
@@ -1,0 +1,58 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * duhtag.c - Function to return the tags stored / / \ \
+ * in a DUH struct (typically author | < / \_
+ * information). | \/ /\ /
+ * \_ / > /
+ * By entheh. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <string.h>
+
+#include "dumb.h"
+#include "internal/dumb.h"
+
+
+
+const char *duh_get_tag(DUH *duh, const char *key)
+{+ int i;
+ ASSERT(key);
+ if (!duh || !duh->tag) return NULL;
+
+ for (i = 0; i < duh->n_tags; i++)
+ if (strcmp(key, duh->tag[i][0]) == 0)
+ return duh->tag[i][1];
+
+ return NULL;
+}
+
+
+
+int duh_get_tag_iterator_size(DUH *duh)
+{+ return (duh && duh->tag ? duh->n_tags : 0);
+}
+
+
+int duh_get_tag_iterator_get(DUH *duh, const char **key, const char **tag, int i)
+{+ ASSERT(key);
+ ASSERT(tag);
+ if (!duh || !duh->tag || i >= duh->n_tags) return -1;
+
+ *key = duh->tag[i][0];
+ *tag = duh->tag[i][1];
+
+ return 0;
+}
--- /dev/null
+++ b/src/core/dumbfile.c
@@ -1,0 +1,418 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * dumbfile.c - Hookable, strictly sequential / / \ \
+ * file input functions. | < / \_
+ * | \/ /\ /
+ * By entheh. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+
+#include "dumb.h"
+
+
+
+static const DUMBFILE_SYSTEM *the_dfs = NULL;
+
+
+
+void register_dumbfile_system(const DUMBFILE_SYSTEM *dfs)
+{+ ASSERT(dfs);
+ ASSERT(dfs->open);
+ ASSERT(dfs->getc);
+ ASSERT(dfs->close);
+ ASSERT(dfs->seek);
+ ASSERT(dfs->get_size);
+ the_dfs = dfs;
+}
+
+
+
+#include "internal/dumbfile.h"
+
+
+
+DUMBFILE *dumbfile_open(const char *filename)
+{+ DUMBFILE *f;
+
+ ASSERT(the_dfs);
+
+ f = (DUMBFILE *) malloc(sizeof(*f));
+
+ if (!f)
+ return NULL;
+
+ f->dfs = the_dfs;
+
+ f->file = (*the_dfs->open)(filename);
+
+ if (!f->file) {+ free(f);
+ return NULL;
+ }
+
+ f->pos = 0;
+
+ return f;
+}
+
+
+
+DUMBFILE *dumbfile_open_ex(void *file, const DUMBFILE_SYSTEM *dfs)
+{+ DUMBFILE *f;
+
+ ASSERT(dfs);
+ ASSERT(dfs->getc);
+ ASSERT(file);
+
+ f = (DUMBFILE *) malloc(sizeof(*f));
+
+ if (!f) {+ if (dfs->close)
+ (*dfs->close)(file);
+ return NULL;
+ }
+
+ f->dfs = dfs;
+ f->file = file;
+
+ f->pos = 0;
+
+ return f;
+}
+
+
+
+long dumbfile_pos(DUMBFILE *f)
+{+ ASSERT(f);
+
+ return f->pos;
+}
+
+
+
+int dumbfile_skip(DUMBFILE *f, long n)
+{+ int rv;
+
+ ASSERT(f);
+ ASSERT(n >= 0);
+
+ if (f->pos < 0)
+ return -1;
+
+ f->pos += n;
+
+ if (f->dfs->skip) {+ rv = (*f->dfs->skip)(f->file, n);
+ if (rv) {+ f->pos = -1;
+ return rv;
+ }
+ } else {+ while (n) {+ rv = (*f->dfs->getc)(f->file);
+ if (rv < 0) {+ f->pos = -1;
+ return rv;
+ }
+ n--;
+ }
+ }
+
+ return 0;
+}
+
+
+
+int dumbfile_getc(DUMBFILE *f)
+{+ int rv;
+
+ ASSERT(f);
+
+ if (f->pos < 0)
+ return -1;
+
+ rv = (*f->dfs->getc)(f->file);
+
+ if (rv < 0) {+ f->pos = -1;
+ return rv;
+ }
+
+ f->pos++;
+
+ return rv;
+}
+
+
+
+int dumbfile_igetw(DUMBFILE *f)
+{+ int l, h;
+
+ ASSERT(f);
+
+ if (f->pos < 0)
+ return -1;
+
+ l = (*f->dfs->getc)(f->file);
+ if (l < 0) {+ f->pos = -1;
+ return l;
+ }
+
+ h = (*f->dfs->getc)(f->file);
+ if (h < 0) {+ f->pos = -1;
+ return h;
+ }
+
+ f->pos += 2;
+
+ return l | (h << 8);
+}
+
+
+
+int dumbfile_mgetw(DUMBFILE *f)
+{+ int l, h;
+
+ ASSERT(f);
+
+ if (f->pos < 0)
+ return -1;
+
+ h = (*f->dfs->getc)(f->file);
+ if (h < 0) {+ f->pos = -1;
+ return h;
+ }
+
+ l = (*f->dfs->getc)(f->file);
+ if (l < 0) {+ f->pos = -1;
+ return l;
+ }
+
+ f->pos += 2;
+
+ return l | (h << 8);
+}
+
+
+
+long dumbfile_igetl(DUMBFILE *f)
+{+ unsigned long rv, b;
+
+ ASSERT(f);
+
+ if (f->pos < 0)
+ return -1;
+
+ rv = (*f->dfs->getc)(f->file);
+ if ((signed long)rv < 0) {+ f->pos = -1;
+ return rv;
+ }
+
+ b = (*f->dfs->getc)(f->file);
+ if ((signed long)b < 0) {+ f->pos = -1;
+ return b;
+ }
+ rv |= b << 8;
+
+ b = (*f->dfs->getc)(f->file);
+ if ((signed long)b < 0) {+ f->pos = -1;
+ return b;
+ }
+ rv |= b << 16;
+
+ b = (*f->dfs->getc)(f->file);
+ if ((signed long)b < 0) {+ f->pos = -1;
+ return b;
+ }
+ rv |= b << 24;
+
+ f->pos += 4;
+
+ return rv;
+}
+
+
+
+long dumbfile_mgetl(DUMBFILE *f)
+{+ unsigned long rv, b;
+
+ ASSERT(f);
+
+ if (f->pos < 0)
+ return -1;
+
+ rv = (*f->dfs->getc)(f->file);
+ if ((signed long)rv < 0) {+ f->pos = -1;
+ return rv;
+ }
+ rv <<= 24;
+
+ b = (*f->dfs->getc)(f->file);
+ if ((signed long)b < 0) {+ f->pos = -1;
+ return b;
+ }
+ rv |= b << 16;
+
+ b = (*f->dfs->getc)(f->file);
+ if ((signed long)b < 0) {+ f->pos = -1;
+ return b;
+ }
+ rv |= b << 8;
+
+ b = (*f->dfs->getc)(f->file);
+ if ((signed long)b < 0) {+ f->pos = -1;
+ return b;
+ }
+ rv |= b;
+
+ f->pos += 4;
+
+ return rv;
+}
+
+
+
+unsigned long dumbfile_cgetul(DUMBFILE *f)
+{+ unsigned long rv = 0;
+ int v;
+
+ do {+ v = dumbfile_getc(f);
+
+ if (v < 0)
+ return v;
+
+ rv <<= 7;
+ rv |= v & 0x7F;
+ } while (v & 0x80);
+
+ return rv;
+}
+
+
+
+signed long dumbfile_cgetsl(DUMBFILE *f)
+{+ unsigned long rv = dumbfile_cgetul(f);
+
+ if (f->pos < 0)
+ return rv;
+
+ return (rv >> 1) | (rv << 31);
+}
+
+
+
+long dumbfile_getnc(char *ptr, long n, DUMBFILE *f)
+{+ long rv;
+
+ ASSERT(f);
+ ASSERT(n >= 0);
+
+ if (f->pos < 0)
+ return -1;
+
+ if (f->dfs->getnc) {+ rv = (*f->dfs->getnc)(ptr, n, f->file);
+ if (rv < n) {+ f->pos = -1;
+ return MAX(rv, 0);
+ }
+ } else {+ for (rv = 0; rv < n; rv++) {+ int c = (*f->dfs->getc)(f->file);
+ if (c < 0) {+ f->pos = -1;
+ return rv;
+ }
+ *ptr++ = c;
+ }
+ }
+
+ f->pos += rv;
+
+ return rv;
+}
+
+
+
+int dumbfile_seek(DUMBFILE *f, long n, int origin)
+{+ switch ( origin )
+ {+ case DFS_SEEK_CUR: n += f->pos; break;
+ case DFS_SEEK_END: n += (*f->dfs->get_size)(f->file); break;
+ }
+ f->pos = n;
+ return (*f->dfs->seek)(f->file, n);
+}
+
+
+
+long dumbfile_get_size(DUMBFILE *f)
+{+ return (*f->dfs->get_size)(f->file);
+}
+
+
+
+int dumbfile_error(DUMBFILE *f)
+{+ ASSERT(f);
+
+ return f->pos < 0;
+}
+
+
+
+int dumbfile_close(DUMBFILE *f)
+{+ int rv;
+
+ ASSERT(f);
+
+ rv = f->pos < 0;
+
+ if (f->dfs->close)
+ (*f->dfs->close)(f->file);
+
+ free(f);
+
+ return rv;
+}
--- /dev/null
+++ b/src/core/loadduh.c
@@ -1,0 +1,42 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadduh.c - Code to read a DUH from a file, / / \ \
+ * opening and closing the file for | < / \_
+ * you. | \/ /\ /
+ * \_ / > /
+ * By entheh. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/dumb.h"
+
+
+
+/* load_duh(): loads a .duh file, returning a pointer to a DUH struct.
+ * When you have finished with it, you must pass the pointer to unload_duh()
+ * so that the memory can be freed.
+ */
+DUH *load_duh(const char *filename)
+{+ DUH *duh;
+ DUMBFILE *f = dumbfile_open(filename);
+
+ if (!f)
+ return NULL;
+
+ duh = read_duh(f);
+
+ dumbfile_close(f);
+
+ return duh;
+}
--- /dev/null
+++ b/src/core/makeduh.c
@@ -1,0 +1,151 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * makeduh.c - Function to construct a DUH from / / \ \
+ * its components. | < / \_
+ * | \/ /\ /
+ * By entheh. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "dumb.h"
+#include "internal/dumb.h"
+
+
+
+static DUH_SIGNAL *make_signal(DUH_SIGTYPE_DESC *desc, sigdata_t *sigdata)
+{+ DUH_SIGNAL *signal;
+
+ ASSERT((desc->start_sigrenderer && desc->end_sigrenderer) || (!desc->start_sigrenderer && !desc->end_sigrenderer));
+ ASSERT(desc->sigrenderer_generate_samples && desc->sigrenderer_get_current_sample);
+
+ signal = malloc(sizeof(*signal));
+
+ if (!signal) {+ if (desc->unload_sigdata)
+ if (sigdata)
+ (*desc->unload_sigdata)(sigdata);
+ return NULL;
+ }
+
+ signal->desc = desc;
+ signal->sigdata = sigdata;
+
+ return signal;
+}
+
+
+
+DUH *make_duh(
+ long length,
+ int n_tags,
+ const char *const tags[][2],
+ int n_signals,
+ DUH_SIGTYPE_DESC *desc[],
+ sigdata_t *sigdata[]
+)
+{+ DUH *duh = malloc(sizeof(*duh));
+ int i;
+ int fail;
+
+ if (duh) {+ duh->n_signals = n_signals;
+
+ duh->signal = malloc(n_signals * sizeof(*duh->signal));
+
+ if (!duh->signal) {+ free(duh);
+ duh = NULL;
+ }
+ }
+
+ if (!duh) {+ for (i = 0; i < n_signals; i++)
+ if (desc[i]->unload_sigdata)
+ if (sigdata[i])
+ (*desc[i]->unload_sigdata)(sigdata[i]);
+ return NULL;
+ }
+
+ duh->n_tags = 0;
+ duh->tag = NULL;
+
+ fail = 0;
+
+ for (i = 0; i < n_signals; i++) {+ duh->signal[i] = make_signal(desc[i], sigdata[i]);
+ if (!duh->signal[i])
+ fail = 1;
+ }
+
+ if (fail) {+ unload_duh(duh);
+ return NULL;
+ }
+
+ duh->length = length;
+
+ {+ int mem = n_tags * 2; /* account for NUL terminators here */
+ char *ptr;
+
+ for (i = 0; i < n_tags; i++)
+ mem += strlen(tags[i][0]) + strlen(tags[i][1]);
+
+ if (mem <= 0) return duh;
+
+ duh->tag = malloc(n_tags * sizeof(*duh->tag));
+ if (!duh->tag) return duh;
+ duh->tag[0][0] = malloc(mem);
+ if (!duh->tag[0][0]) {+ free(duh->tag);
+ duh->tag = NULL;
+ return duh;
+ }
+ duh->n_tags = n_tags;
+ ptr = duh->tag[0][0];
+ for (i = 0; i < n_tags; i++) {+ duh->tag[i][0] = ptr;
+ strcpy(ptr, tags[i][0]);
+ ptr += strlen(tags[i][0]) + 1;
+ duh->tag[i][1] = ptr;
+ strcpy(ptr, tags[i][1]);
+ ptr += strlen(tags[i][1]) + 1;
+ }
+ }
+
+ return duh;
+}
+
+int duh_add_signal(DUH *duh, DUH_SIGTYPE_DESC *desc, sigdata_t *sigdata)
+{+ DUH_SIGNAL **signal;
+
+ if ( !duh || !desc || !sigdata ) return -1;
+
+ signal = ( DUH_SIGNAL ** ) realloc( duh->signal, ( duh->n_signals + 1 ) * sizeof( *duh->signal ) );
+ if ( !signal ) return -1;
+ duh->signal = signal;
+
+ memmove( signal + 1, signal, duh->n_signals * sizeof( *signal ) );
+ duh->n_signals++;
+
+ signal[ 0 ] = make_signal( desc, sigdata );
+ if ( !signal[ 0 ] ) return -1;
+
+ return 0;
+}
--- /dev/null
+++ b/src/core/rawsig.c
@@ -1,0 +1,58 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * rawsig.c - Function to retrieve raw signal / / \ \
+ * data from a DUH provided you know | < / \_
+ * what type of signal it is. | \/ /\ /
+ * \_ / > /
+ * By entheh. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+
+#include "dumb.h"
+#include "internal/dumb.h"
+
+
+
+/* You have to specify the type of sigdata, proving you know what to do with
+ * the pointer. If you get it wrong, you can expect NULL back.
+ */
+sigdata_t *duh_get_raw_sigdata(DUH *duh, int sig, long type)
+{+ int i;
+ DUH_SIGNAL *signal;
+
+ if (!duh) return NULL;
+
+ if ( sig >= 0 )
+ {+ if ((unsigned int)sig >= (unsigned int)duh->n_signals) return NULL;
+
+ signal = duh->signal[sig];
+
+ if (signal && signal->desc->type == type)
+ return signal->sigdata;
+ }
+ else
+ {+ for ( i = 0; i < duh->n_signals; i++ )
+ {+ signal = duh->signal[i];
+
+ if (signal && signal->desc->type == type)
+ return signal->sigdata;
+ }
+ }
+
+ return NULL;
+}
--- /dev/null
+++ b/src/core/readduh.c
@@ -1,0 +1,107 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readduh.c - Code to read a DUH from an open / / \ \
+ * file. | < / \_
+ * | \/ /\ /
+ * By entheh. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+
+#include "dumb.h"
+#include "internal/dumb.h"
+
+
+
+static DUH_SIGNAL *read_signal(DUH *duh, DUMBFILE *f)
+{+ DUH_SIGNAL *signal;
+ long type;
+
+ signal = malloc(sizeof(*signal));
+
+ if (!signal)
+ return NULL;
+
+ type = dumbfile_mgetl(f);
+ if (dumbfile_error(f)) {+ free(signal);
+ return NULL;
+ }
+
+ signal->desc = _dumb_get_sigtype_desc(type);
+ if (!signal->desc) {+ free(signal);
+ return NULL;
+ }
+
+ if (signal->desc->load_sigdata) {+ signal->sigdata = (*signal->desc->load_sigdata)(duh, f);
+ if (!signal->sigdata) {+ free(signal);
+ return NULL;
+ }
+ } else
+ signal->sigdata = NULL;
+
+ return signal;
+}
+
+
+
+/* read_duh(): reads a DUH from an already open DUMBFILE, and returns its
+ * pointer, or null on error. The file is not closed.
+ */
+DUH *read_duh(DUMBFILE *f)
+{+ DUH *duh;
+ int i;
+
+ if (dumbfile_mgetl(f) != DUH_SIGNATURE)
+ return NULL;
+
+ duh = malloc(sizeof(*duh));
+ if (!duh)
+ return NULL;
+
+ duh->length = dumbfile_igetl(f);
+ if (dumbfile_error(f) || duh->length <= 0) {+ free(duh);
+ return NULL;
+ }
+
+ duh->n_signals = dumbfile_igetl(f);
+ if (dumbfile_error(f) || duh->n_signals <= 0) {+ free(duh);
+ return NULL;
+ }
+
+ duh->signal = malloc(sizeof(*duh->signal) * duh->n_signals);
+ if (!duh->signal) {+ free(duh);
+ return NULL;
+ }
+
+ for (i = 0; i < duh->n_signals; i++)
+ duh->signal[i] = NULL;
+
+ for (i = 0; i < duh->n_signals; i++) {+ if (!(duh->signal[i] = read_signal(duh, f))) {+ unload_duh(duh);
+ return NULL;
+ }
+ }
+
+ return duh;
+}
--- /dev/null
+++ b/src/core/register.c
@@ -1,0 +1,104 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * register.c - Signal type registration. / / \ \
+ * | < / \_
+ * By entheh. | \/ /\ /
+ * \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+
+#include "dumb.h"
+#include "internal/dumb.h"
+
+
+
+static DUH_SIGTYPE_DESC_LINK *sigtype_desc = NULL;
+static DUH_SIGTYPE_DESC_LINK **sigtype_desc_tail = &sigtype_desc;
+
+
+
+/* destroy_sigtypes(): frees all memory allocated while registering signal
+ * types. This function is set up to be called by dumb_exit().
+ */
+static void destroy_sigtypes(void)
+{+ DUH_SIGTYPE_DESC_LINK *desc_link = sigtype_desc, *next;
+ sigtype_desc = NULL;
+ sigtype_desc_tail = &sigtype_desc;
+
+ while (desc_link) {+ next = desc_link->next;
+ free(desc_link);
+ desc_link = next;
+ }
+}
+
+
+
+/* dumb_register_sigtype(): registers a new signal type with DUMB. The signal
+ * type is identified by a four-character string (e.g. "WAVE"), which you can
+ * encode using the the DUMB_ID() macro (e.g. DUMB_ID('W','A','V','E')). The+ * signal's behaviour is defined by four functions, whose pointers you pass
+ * here. See the documentation for details.
+ *
+ * If a DUH tries to use a signal that has not been registered using this
+ * function, then the library will fail to load the DUH.
+ */
+void dumb_register_sigtype(DUH_SIGTYPE_DESC *desc)
+{+ DUH_SIGTYPE_DESC_LINK *desc_link = sigtype_desc;
+
+ ASSERT((desc->load_sigdata && desc->unload_sigdata) || (!desc->load_sigdata && !desc->unload_sigdata));
+ ASSERT((desc->start_sigrenderer && desc->end_sigrenderer) || (!desc->start_sigrenderer && !desc->end_sigrenderer));
+ ASSERT(desc->sigrenderer_generate_samples && desc->sigrenderer_get_current_sample);
+
+ if (desc_link) {+ do {+ if (desc_link->desc->type == desc->type) {+ desc_link->desc = desc;
+ return;
+ }
+ desc_link = desc_link->next;
+ } while (desc_link);
+ } else
+ dumb_atexit(&destroy_sigtypes);
+
+ desc_link = *sigtype_desc_tail = malloc(sizeof(DUH_SIGTYPE_DESC_LINK));
+
+ if (!desc_link)
+ return;
+
+ desc_link->next = NULL;
+ sigtype_desc_tail = &desc_link->next;
+
+ desc_link->desc = desc;
+}
+
+
+
+/* _dumb_get_sigtype_desc(): searches the registered functions for a signal
+ * type matching the parameter. If such a sigtype is found, it returns a
+ * pointer to a sigtype descriptor containing the necessary functions to
+ * manage the signal. If none is found, it returns NULL.
+ */
+DUH_SIGTYPE_DESC *_dumb_get_sigtype_desc(long type)
+{+ DUH_SIGTYPE_DESC_LINK *desc_link = sigtype_desc;
+
+ while (desc_link && desc_link->desc->type != type)
+ desc_link = desc_link->next;
+
+ return desc_link ? desc_link->desc : NULL;
+}
--- /dev/null
+++ b/src/core/rendduh.c
@@ -1,0 +1,331 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * rendduh.c - Functions for rendering a DUH into / / \ \
+ * an end-user sample format. | < / \_
+ * | \/ /\ /
+ * By entheh. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include <limits.h>
+
+#include "dumb.h"
+#include "internal/dumb.h"
+
+
+
+/* On the x86, we can use some tricks to speed stuff up */
+#if (defined _MSC_VER) || (defined __DJGPP__) || (defined __MINGW__)
+// Can't we detect Linux and other x86 platforms here? :/
+
+#define FAST_MID(var, min, max) { \+ var -= (min); \
+ var &= (~var) >> (sizeof(var) * CHAR_BIT - 1); \
+ var += (min); \
+ var -= (max); \
+ var &= var >> (sizeof(var) * CHAR_BIT - 1); \
+ var += (max); \
+}
+
+#define CONVERT8(src, pos, signconv) { \+ signed int f = (src + 0x8000) >> 16; \
+ FAST_MID(f, -128, 127); \
+ ((char*)sptr)[pos] = (char)f ^ signconv; \
+}
+
+#define CONVERT16(src, pos, signconv) { \+ signed int f = (src + 0x80) >> 8; \
+ FAST_MID(f, -32768, 32767); \
+ ((short*)sptr)[pos] = (short)(f ^ signconv); \
+}
+
+#else
+
+#define CONVERT8(src, pos, signconv) \
+{ \+ signed int f = (src + 0x8000) >> 16; \
+ f = MID(-128, f, 127); \
+ ((char *)sptr)[pos] = (char)f ^ signconv; \
+}
+
+
+
+#define CONVERT16(src, pos, signconv) \
+{ \+ signed int f = (src + 0x80) >> 8; \
+ f = MID(-32768, f, 32767); \
+ ((short *)sptr)[pos] = (short)(f ^ signconv); \
+}
+
+#endif
+
+#define CONVERT24(src, pos) { \+ signed int f = src; \
+ f = MID(-8388608, f, 8388607); \
+ ((unsigned char*)sptr)[pos ] = (f) & 0xFF; \
+ ((unsigned char*)sptr)[pos+1] = (f >> 8) & 0xFF; \
+ ((unsigned char*)sptr)[pos+2] = (f >> 16) & 0xFF; \
+}
+
+#define CONVERT32F(src, pos) { \+ ((float*)sptr)[pos] = (float)((signed int)src) * (1.0f/(float)(0xffffff/2+1)); \
+}
+
+#define CONVERT64F(src, pos) { \+ ((double*)sptr)[pos] = (double)((signed int)src) * (1.0/(double)(0xffffff/2+1)); \
+}
+
+
+/* DEPRECATED */
+DUH_SIGRENDERER *duh_start_renderer(DUH *duh, int n_channels, long pos)
+{+ return duh_start_sigrenderer(duh, 0, n_channels, pos);
+}
+
+
+/* DEPRECATED */
+long duh_render(
+ DUH_SIGRENDERER *sigrenderer,
+ int bits, int unsign,
+ float volume, float delta,
+ long size, void *sptr
+)
+{+ long n;
+
+ sample_t **sampptr;
+
+ int n_channels;
+
+ ASSERT(bits == 8 || bits == 16);
+ ASSERT(sptr);
+
+ if (!sigrenderer)
+ return 0;
+
+ n_channels = duh_sigrenderer_get_n_channels(sigrenderer);
+
+ ASSERT(n_channels > 0);
+ /* This restriction will be removed when need be. At the moment, tightly
+ * optimised loops exist for exactly one or two channels.
+ */
+ ASSERT(n_channels <= 2);
+
+ sampptr = allocate_sample_buffer(n_channels, size);
+
+ if (!sampptr)
+ return 0;
+
+ dumb_silence(sampptr[0], n_channels * size);
+
+ size = duh_sigrenderer_generate_samples(sigrenderer, volume, delta, size, sampptr);
+
+ if (bits == 16) {+ int signconv = unsign ? 0x8000 : 0x0000;
+
+ for (n = 0; n < size * n_channels; n++) {+ CONVERT16(sampptr[0][n], n, signconv);
+ }
+ } else {+ char signconv = unsign ? 0x80 : 0x00;
+
+ for (n = 0; n < size * n_channels; n++) {+ CONVERT8(sampptr[0][n], n, signconv);
+ }
+ }
+
+ destroy_sample_buffer(sampptr);
+
+ return size;
+}
+
+
+long duh_render_int(
+ DUH_SIGRENDERER *sigrenderer,
+ sample_t ***sig_samples,
+ long *sig_samples_size,
+ int bits, int unsign,
+ float volume, float delta,
+ long size, void *sptr
+)
+{+ long n;
+
+ sample_t **sampptr;
+
+ int n_channels;
+
+ ASSERT(bits == 8 || bits == 16 || bits == 24);
+ ASSERT(sptr);
+ ASSERT(sig_samples);
+ ASSERT(sig_samples_size);
+
+ if (!sigrenderer)
+ return 0;
+
+ n_channels = duh_sigrenderer_get_n_channels(sigrenderer);
+
+ ASSERT(n_channels > 0);
+ /* This restriction will be removed when need be. At the moment, tightly
+ * optimised loops exist for exactly one or two channels.
+ */
+ ASSERT(n_channels <= 2);
+
+ if ((*sig_samples == NULL) || (*sig_samples_size != size))
+ {+ destroy_sample_buffer(*sig_samples);
+ *sig_samples = allocate_sample_buffer(n_channels, size);
+ *sig_samples_size = size;
+ }
+ sampptr = *sig_samples;
+
+ if (!sampptr)
+ return 0;
+
+ dumb_silence(sampptr[0], n_channels * size);
+
+ size = duh_sigrenderer_generate_samples(sigrenderer, volume, delta, size, sampptr);
+
+ if (bits == 24) {+ long i = 0;
+ ASSERT(unsign == 0);
+
+ for (n = 0; n < size * n_channels; n++, i += 3) {+ CONVERT24(sampptr[0][n], i);
+ }
+ } else
+ if (bits == 16) {+ int signconv = unsign ? 0x8000 : 0x0000;
+
+ for (n = 0; n < size * n_channels; n++) {+ CONVERT16(sampptr[0][n], n, signconv);
+ }
+ } else {+ char signconv = unsign ? 0x80 : 0x00;
+
+ for (n = 0; n < size * n_channels; n++) {+ CONVERT8(sampptr[0][n], n, signconv);
+ }
+ }
+
+ return size;
+}
+
+
+long duh_render_float(
+ DUH_SIGRENDERER *sigrenderer,
+ sample_t ***sig_samples,
+ long *sig_samples_size,
+ int bits,
+ float volume, float delta,
+ long size, void *sptr
+)
+{+ long n;
+
+ sample_t **sampptr;
+
+ int n_channels;
+
+ ASSERT(bits == 32 || bits == 64);
+ ASSERT(sptr);
+ ASSERT(sig_samples);
+ ASSERT(sig_samples_size);
+
+ if (!sigrenderer)
+ return 0;
+
+ n_channels = duh_sigrenderer_get_n_channels(sigrenderer);
+
+ ASSERT(n_channels > 0);
+ /* This restriction will be removed when need be. At the moment, tightly
+ * optimised loops exist for exactly one or two channels.
+ */
+ ASSERT(n_channels <= 2);
+
+ if ((*sig_samples == NULL) || (*sig_samples_size != size))
+ {+ destroy_sample_buffer(*sig_samples);
+ *sig_samples = allocate_sample_buffer(n_channels, size);
+ *sig_samples_size = size;
+ }
+ sampptr = *sig_samples;
+
+ if (!sampptr)
+ return 0;
+
+ dumb_silence(sampptr[0], n_channels * size);
+
+ size = duh_sigrenderer_generate_samples(sigrenderer, volume, delta, size, sampptr);
+
+ if (bits == 64) {+ for (n = 0; n < size * n_channels; n++) {+ CONVERT64F(sampptr[0][n], n);
+ }
+ } else
+ if (bits == 32) {+ for (n = 0; n < size * n_channels; n++) {+ CONVERT32F(sampptr[0][n], n);
+ }
+ }
+
+ return size;
+}
+
+
+/* DEPRECATED */
+int duh_renderer_get_n_channels(DUH_SIGRENDERER *dr)
+{+ return duh_sigrenderer_get_n_channels(dr);
+}
+
+
+
+/* DEPRECATED */
+long duh_renderer_get_position(DUH_SIGRENDERER *dr)
+{+ return duh_sigrenderer_get_position(dr);
+}
+
+
+
+/* DEPRECATED */
+void duh_end_renderer(DUH_SIGRENDERER *dr)
+{+ duh_end_sigrenderer(dr);
+}
+
+
+
+/* DEPRECATED */
+DUH_SIGRENDERER *duh_renderer_encapsulate_sigrenderer(DUH_SIGRENDERER *sigrenderer)
+{+ return sigrenderer;
+}
+
+
+
+/* DEPRECATED */
+DUH_SIGRENDERER *duh_renderer_get_sigrenderer(DUH_SIGRENDERER *dr)
+{+ return dr;
+}
+
+
+
+/* DEPRECATED */
+DUH_SIGRENDERER *duh_renderer_decompose_to_sigrenderer(DUH_SIGRENDERER *dr)
+{+ return dr;
+}
--- /dev/null
+++ b/src/core/rendsig.c
@@ -1,0 +1,352 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * rendsig.c - Wrappers to render samples from / / \ \
+ * the signals in a DUH. | < / \_
+ * | \/ /\ /
+ * By entheh. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+
+#include "dumb.h"
+#include "internal/dumb.h"
+
+
+
+struct DUH_SIGRENDERER
+{+ DUH_SIGTYPE_DESC *desc;
+
+ sigrenderer_t *sigrenderer;
+
+ int n_channels;
+
+ long pos;
+ int subpos;
+
+ DUH_SIGRENDERER_SAMPLE_ANALYSER_CALLBACK callback;
+ void *callback_data;
+};
+
+
+
+DUH_SIGRENDERER *duh_start_sigrenderer(DUH *duh, int sig, int n_channels, long pos)
+{+ DUH_SIGRENDERER *sigrenderer;
+
+ DUH_SIGNAL *signal;
+ DUH_START_SIGRENDERER proc;
+
+ if (!duh)
+ return NULL;
+
+ if ((unsigned int)sig >= (unsigned int)duh->n_signals)
+ return NULL;
+
+ signal = duh->signal[sig];
+ if (!signal)
+ return NULL;
+
+ sigrenderer = malloc(sizeof(*sigrenderer));
+ if (!sigrenderer)
+ return NULL;
+
+ sigrenderer->desc = signal->desc;
+
+ proc = sigrenderer->desc->start_sigrenderer;
+
+ if (proc) {+ duh->signal[sig] = NULL;
+ sigrenderer->sigrenderer = (*proc)(duh, signal->sigdata, n_channels, pos);
+ duh->signal[sig] = signal;
+
+ if (!sigrenderer->sigrenderer) {+ free(sigrenderer);
+ return NULL;
+ }
+ } else
+ sigrenderer->sigrenderer = NULL;
+
+ sigrenderer->n_channels = n_channels;
+
+ sigrenderer->pos = pos;
+ sigrenderer->subpos = 0;
+
+ sigrenderer->callback = NULL;
+
+ return sigrenderer;
+}
+
+
+
+#include <stdio.h>
+void duh_sigrenderer_set_callback(
+ DUH_SIGRENDERER *sigrenderer,
+ DUH_SIGRENDERER_CALLBACK callback, void *data
+)
+{+ (void)sigrenderer;
+ (void)callback;
+ (void)data;
+ /*fprintf(stderr,
+ "Call to deprecated function duh_sigrenderer_set_callback(). The callback\n"
+ "was not installed. See dumb/docs/deprec.txt for how to fix this.\n");*/
+}
+
+
+
+void duh_sigrenderer_set_analyser_callback(
+ DUH_SIGRENDERER *sigrenderer,
+ DUH_SIGRENDERER_ANALYSER_CALLBACK callback, void *data
+)
+{+ (void)sigrenderer;
+ (void)callback;
+ (void)data;
+ fprintf(stderr,
+ "Call to deprecated function duh_sigrenderer_set_analyser_callback(). The\n"
+ "callback was not installed. See dumb/docs/deprec.txt for how to fix this.\n");
+}
+
+
+
+void duh_sigrenderer_set_sample_analyser_callback(
+ DUH_SIGRENDERER *sigrenderer,
+ DUH_SIGRENDERER_SAMPLE_ANALYSER_CALLBACK callback, void *data
+)
+{+ if (sigrenderer) {+ sigrenderer->callback = callback;
+ sigrenderer->callback_data = data;
+ }
+}
+
+
+
+int duh_sigrenderer_get_n_channels(DUH_SIGRENDERER *sigrenderer)
+{+ return sigrenderer ? sigrenderer->n_channels : 0;
+}
+
+
+
+long duh_sigrenderer_get_position(DUH_SIGRENDERER *sigrenderer)
+{+ DUH_SIGRENDERER_GET_POSITION proc;
+
+ if (!sigrenderer) return -1;
+
+ proc = sigrenderer->desc->sigrenderer_get_position;
+ if (proc)
+ return (*proc)(sigrenderer->sigrenderer);
+ else
+ return sigrenderer->pos;
+}
+
+
+
+void duh_sigrenderer_set_sigparam(
+ DUH_SIGRENDERER *sigrenderer,
+ unsigned char id, long value
+)
+{+ DUH_SIGRENDERER_SET_SIGPARAM proc;
+
+ if (!sigrenderer) return;
+
+ proc = sigrenderer->desc->sigrenderer_set_sigparam;
+ if (proc)
+ (*proc)(sigrenderer->sigrenderer, id, value);
+ else
+ TRACE("Parameter #%d = %ld for signal %c%c%c%c, which does not take parameters.\n",+ (int)id,
+ value,
+ (int)(sigrenderer->desc->type >> 24),
+ (int)(sigrenderer->desc->type >> 16),
+ (int)(sigrenderer->desc->type >> 8),
+ (int)(sigrenderer->desc->type));
+}
+
+
+
+long duh_sigrenderer_generate_samples(
+ DUH_SIGRENDERER *sigrenderer,
+ float volume, float delta,
+ long size, sample_t **samples
+)
+{+ long rendered;
+ LONG_LONG t;
+
+ if (!sigrenderer) return 0;
+
+ rendered = (*sigrenderer->desc->sigrenderer_generate_samples)
+ (sigrenderer->sigrenderer, volume, delta, size, samples);
+
+ if (rendered) {+ if (sigrenderer->callback)
+ (*sigrenderer->callback)(sigrenderer->callback_data,
+ (const sample_t *const *)samples, sigrenderer->n_channels, rendered);
+
+ t = sigrenderer->subpos + (LONG_LONG)(delta * 65536.0 + 0.5) * rendered;
+
+ sigrenderer->pos += (long)(t >> 16);
+ sigrenderer->subpos = (int)t & 65535;
+ }
+
+ return rendered;
+}
+
+
+
+/* DEPRECATED */
+long duh_sigrenderer_get_samples(
+ DUH_SIGRENDERER *sigrenderer,
+ float volume, float delta,
+ long size, sample_t **samples
+)
+{+ sample_t **s;
+ long rendered;
+ long i;
+ int j;
+ if (!samples) return duh_sigrenderer_generate_samples(sigrenderer, volume, delta, size, NULL);
+ s = allocate_sample_buffer(sigrenderer->n_channels, size);
+ if (!s) return 0;
+ dumb_silence(s[0], sigrenderer->n_channels * size);
+ rendered = duh_sigrenderer_generate_samples(sigrenderer, volume, delta, size, s);
+ for (j = 0; j < sigrenderer->n_channels; j++)
+ for (i = 0; i < rendered; i++)
+ samples[j][i] += s[0][i*sigrenderer->n_channels+j];
+ destroy_sample_buffer(s);
+ return rendered;
+}
+
+
+
+/* DEPRECATED */
+long duh_render_signal(
+ DUH_SIGRENDERER *sigrenderer,
+ float volume, float delta,
+ long size, sample_t **samples
+)
+{+ sample_t **s;
+ long rendered;
+ long i;
+ int j;
+ if (!samples) return duh_sigrenderer_generate_samples(sigrenderer, volume, delta, size, NULL);
+ s = allocate_sample_buffer(sigrenderer->n_channels, size);
+ if (!s) return 0;
+ dumb_silence(s[0], sigrenderer->n_channels * size);
+ rendered = duh_sigrenderer_generate_samples(sigrenderer, volume, delta, size, s);
+ for (j = 0; j < sigrenderer->n_channels; j++)
+ for (i = 0; i < rendered; i++)
+ samples[j][i] += s[0][i*sigrenderer->n_channels+j] >> 8;
+ destroy_sample_buffer(s);
+ return rendered;
+}
+
+
+
+void duh_sigrenderer_get_current_sample(DUH_SIGRENDERER *sigrenderer, float volume, sample_t *samples)
+{+ if (sigrenderer)
+ (*sigrenderer->desc->sigrenderer_get_current_sample)(sigrenderer->sigrenderer, volume, samples);
+}
+
+
+
+void duh_end_sigrenderer(DUH_SIGRENDERER *sigrenderer)
+{+ if (sigrenderer) {+ if (sigrenderer->desc->end_sigrenderer)
+ if (sigrenderer->sigrenderer)
+ (*sigrenderer->desc->end_sigrenderer)(sigrenderer->sigrenderer);
+
+ free(sigrenderer);
+ }
+}
+
+
+
+DUH_SIGRENDERER *duh_encapsulate_raw_sigrenderer(sigrenderer_t *vsigrenderer, DUH_SIGTYPE_DESC *desc, int n_channels, long pos)
+{+ DUH_SIGRENDERER *sigrenderer;
+
+ if (desc->start_sigrenderer && !vsigrenderer) return NULL;
+
+ sigrenderer = malloc(sizeof(*sigrenderer));
+ if (!sigrenderer) {+ if (desc->end_sigrenderer)
+ if (vsigrenderer)
+ (*desc->end_sigrenderer)(vsigrenderer);
+ return NULL;
+ }
+
+ sigrenderer->desc = desc;
+ sigrenderer->sigrenderer = vsigrenderer;
+
+ sigrenderer->n_channels = n_channels;
+
+ sigrenderer->pos = pos;
+ sigrenderer->subpos = 0;
+
+ sigrenderer->callback = NULL;
+
+ return sigrenderer;
+}
+
+
+
+sigrenderer_t *duh_get_raw_sigrenderer(DUH_SIGRENDERER *sigrenderer, long type)
+{+ if (sigrenderer && sigrenderer->desc->type == type)
+ return sigrenderer->sigrenderer;
+
+ return NULL;
+}
+
+
+
+#if 0
+// This function is disabled because we don't know whether we want to destroy
+// the sigrenderer if the type doesn't match. We don't even know if we need
+// the function at all. Who would want to keep an IT_SIGRENDERER (for
+// instance) without keeping the DUH_SIGRENDERER?
+sigrenderer_t *duh_decompose_to_raw_sigrenderer(DUH_SIGRENDERER *sigrenderer, long type)
+{+ if (sigrenderer && sigrenderer->desc->type == type) {+
+
+
+ if (sigrenderer) {+ if (sigrenderer->desc->end_sigrenderer)
+ if (sigrenderer->sigrenderer)
+ (*sigrenderer->desc->end_sigrenderer)(sigrenderer->sigrenderer);
+
+ free(sigrenderer);
+ }
+
+
+
+
+
+
+ return sigrenderer->sigrenderer;
+ }
+
+ return NULL;
+}
+#endif
--- /dev/null
+++ b/src/core/unload.c
@@ -1,0 +1,64 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * unload.c - Code to free a DUH from memory. / / \ \
+ * | < / \_
+ * By entheh. | \/ /\ /
+ * \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+
+#include "dumb.h"
+#include "internal/dumb.h"
+
+
+
+static void destroy_signal(DUH_SIGNAL *signal)
+{+ if (signal) {+ if (signal->desc)
+ if (signal->desc->unload_sigdata)
+ if (signal->sigdata)
+ (*signal->desc->unload_sigdata)(signal->sigdata);
+
+ free(signal);
+ }
+}
+
+
+
+/* unload_duh(): destroys a DUH struct. You must call this for every DUH
+ * struct created, when you've finished with it.
+ */
+void unload_duh(DUH *duh)
+{+ int i;
+
+ if (duh) {+ if (duh->signal) {+ for (i = 0; i < duh->n_signals; i++)
+ destroy_signal(duh->signal[i]);
+
+ free(duh->signal);
+ }
+
+ if (duh->tag) {+ if (duh->tag[0][0])
+ free(duh->tag[0][0]);
+ free(duh->tag);
+ }
+
+ free(duh);
+ }
+}
--- /dev/null
+++ b/src/helpers/barray.c
@@ -1,0 +1,189 @@
+#include "internal/barray.h"
+
+#include <string.h>
+
+
+void * bit_array_create(size_t size)
+{+ size_t bsize = ((size + 7) >> 3) + sizeof(size_t);
+ void * ret = calloc(1, bsize);
+ if (ret) *(size_t *)ret = size;
+ return ret;
+}
+
+void bit_array_destroy(void * array)
+{+ if (array) free(array);
+}
+
+void * bit_array_dup(void * array)
+{+ if (array)
+ {+ size_t * size = (size_t *) array;
+ size_t bsize = ((*size + 7) >> 3) + sizeof(*size);
+ void * ret = malloc(bsize);
+ if (ret) memcpy(ret, array, bsize);
+ return ret;
+ }
+ return NULL;
+}
+
+void bit_array_reset(void * array)
+{+ if (array)
+ {+ size_t * size = (size_t *) array;
+ size_t bsize = (*size + 7) >> 3;
+ memset(size + 1, 0, bsize);
+ }
+}
+
+
+void bit_array_set(void * array, size_t bit)
+{+ if (array)
+ {+ size_t * size = (size_t *) array;
+ if (bit < *size)
+ {+ unsigned char * ptr = (unsigned char *)(size + 1);
+ ptr[bit >> 3] |= (1U << (bit & 7));
+ }
+ }
+}
+
+void bit_array_set_range(void * array, size_t bit, size_t count)
+{+ if (array && count)
+ {+ size_t * size = (size_t *) array;
+ if (bit < *size)
+ {+ unsigned char * ptr = (unsigned char *)(size + 1);
+ size_t i;
+ for (i = bit; i < *size && i < bit + count; ++i)
+ ptr[i >> 3] |= (1U << (i & 7));
+ }
+ }
+}
+
+int bit_array_test(void * array, size_t bit)
+{+ if (array)
+ {+ size_t * size = (size_t *) array;
+ if (bit < *size)
+ {+ unsigned char * ptr = (unsigned char *)(size + 1);
+ if (ptr[bit >> 3] & (1U << (bit & 7)))
+ {+ return 1;
+ }
+ }
+ }
+ return 0;
+}
+
+int bit_array_test_range(void * array, size_t bit, size_t count)
+{+ if (array)
+ {+ size_t * size = (size_t *) array;
+ if (bit < *size)
+ {+ unsigned char * ptr = (unsigned char *)(size + 1);
+ if ((bit & 7) && (count > 8))
+ {+ while ((bit < *size) && count && (bit & 7))
+ {+ if (ptr[bit >> 3] & (1U << (bit & 7))) return 1;
+ bit++;
+ count--;
+ }
+ }
+ if (!(bit & 7))
+ {+ while (((*size - bit) >= 8) && (count >= 8))
+ {+ if (ptr[bit >> 3]) return 1;
+ bit += 8;
+ count -= 8;
+ }
+ }
+ while ((bit < *size) && count)
+ {+ if (ptr[bit >> 3] & (1U << (bit & 7))) return 1;
+ bit++;
+ count--;
+ }
+ }
+ }
+ return 0;
+}
+
+void bit_array_clear(void * array, size_t bit)
+{+ if (array)
+ {+ size_t * size = (size_t *) array;
+ if (bit < *size)
+ {+ unsigned char * ptr = (unsigned char *)(size + 1);
+ ptr[bit >> 3] &= ~(1U << (bit & 7));
+ }
+ }
+}
+
+void bit_array_clear_range(void * array, size_t bit, size_t count)
+{+ if (array && count)
+ {+ size_t * size = (size_t *) array;
+ if (bit < *size)
+ {+ unsigned char * ptr = (unsigned char *)(size + 1);
+ size_t i;
+ for (i = bit; i < *size && i < bit + count; ++i)
+ ptr[i >> 3] &= ~(1U << (i & 7));
+ }
+ }
+}
+
+void bit_array_merge(void * dest, void * source, size_t offset)
+{+ if (dest && source)
+ {+ size_t * dsize = (size_t *) dest;
+ size_t * ssize = (size_t *) source;
+ size_t soffset = 0;
+ while (offset < *dsize && soffset < *ssize)
+ {+ if (bit_array_test(source, soffset))
+ {+ bit_array_set(dest, offset);
+ }
+ soffset++;
+ offset++;
+ }
+ }
+}
+
+void bit_array_mask(void * dest, void * source, size_t offset)
+{+ if (dest && source)
+ {+ size_t * dsize = (size_t *) dest;
+ size_t * ssize = (size_t *) source;
+ size_t soffset = 0;
+ while (offset < *dsize && soffset < *ssize)
+ {+ if (bit_array_test(source, soffset))
+ {+ bit_array_clear(dest, offset);
+ }
+ soffset++;
+ offset++;
+ }
+ }
+}
--- /dev/null
+++ b/src/helpers/clickrem.c
@@ -1,0 +1,281 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * clickrem.c - Click removal helpers. / / \ \
+ * | < / \_
+ * By entheh. | \/ /\ /
+ * \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include <math.h>
+#include "dumb.h"
+
+
+
+typedef struct DUMB_CLICK DUMB_CLICK;
+
+
+struct DUMB_CLICK_REMOVER
+{+ DUMB_CLICK *click;
+ int n_clicks;
+
+ int offset;
+};
+
+
+struct DUMB_CLICK
+{+ DUMB_CLICK *next;
+ long pos;
+ sample_t step;
+};
+
+
+
+DUMB_CLICK_REMOVER *dumb_create_click_remover(void)
+{+ DUMB_CLICK_REMOVER *cr = malloc(sizeof(*cr));
+ if (!cr) return NULL;
+
+ cr->click = NULL;
+ cr->n_clicks = 0;
+
+ cr->offset = 0;
+
+ return cr;
+}
+
+
+
+void dumb_record_click(DUMB_CLICK_REMOVER *cr, long pos, sample_t step)
+{+ DUMB_CLICK *click;
+
+ ASSERT(pos >= 0);
+
+ if (!cr || !step) return;
+
+ if (pos == 0) {+ cr->offset -= step;
+ return;
+ }
+
+ click = malloc(sizeof(*click));
+ if (!click) return;
+
+ click->pos = pos;
+ click->step = step;
+
+ click->next = cr->click;
+ cr->click = click;
+ cr->n_clicks++;
+}
+
+
+
+static DUMB_CLICK *dumb_click_mergesort(DUMB_CLICK *click, int n_clicks)
+{+ int i;
+ DUMB_CLICK *c1, *c2, **cp;
+
+ if (n_clicks <= 1) return click;
+
+ /* Split the list into two */
+ c1 = click;
+ cp = &c1;
+ for (i = 0; i < n_clicks; i += 2) cp = &(*cp)->next;
+ c2 = *cp;
+ *cp = NULL;
+
+ /* Sort the sublists */
+ c1 = dumb_click_mergesort(c1, (n_clicks + 1) >> 1);
+ c2 = dumb_click_mergesort(c2, n_clicks >> 1);
+
+ /* Merge them */
+ cp = &click;
+ while (c1 && c2) {+ if (c1->pos > c2->pos) {+ *cp = c2;
+ c2 = c2->next;
+ } else {+ *cp = c1;
+ c1 = c1->next;
+ }
+ cp = &(*cp)->next;
+ }
+ if (c2)
+ *cp = c2;
+ else
+ *cp = c1;
+
+ return click;
+}
+
+
+
+void dumb_remove_clicks(DUMB_CLICK_REMOVER *cr, sample_t *samples, long length, int step, float halflife)
+{+ DUMB_CLICK *click;
+ long pos = 0;
+ int offset;
+ int factor;
+
+ if (!cr) return;
+
+ factor = (int)floor(pow(0.5, 1.0/halflife) * (1U << 31));
+
+ click = dumb_click_mergesort(cr->click, cr->n_clicks);
+ cr->click = NULL;
+ cr->n_clicks = 0;
+
+ length *= step;
+
+ while (click) {+ DUMB_CLICK *next = click->next;
+ int end = click->pos * step;
+ ASSERT(end <= length);
+ offset = cr->offset;
+ if (offset < 0) {+ offset = -offset;
+ while (pos < end) {+ samples[pos] -= offset;
+ offset = (int)(((LONG_LONG)(offset << 1) * factor) >> 32);
+ pos += step;
+ }
+ offset = -offset;
+ } else {+ while (pos < end) {+ samples[pos] += offset;
+ offset = (int)(((LONG_LONG)(offset << 1) * factor) >> 32);
+ pos += step;
+ }
+ }
+ cr->offset = offset - click->step;
+ free(click);
+ click = next;
+ }
+
+ offset = cr->offset;
+ if (offset < 0) {+ offset = -offset;
+ while (pos < length) {+ samples[pos] -= offset;
+ offset = (int)((LONG_LONG)(offset << 1) * factor >> 32);
+ pos += step;
+ }
+ offset = -offset;
+ } else {+ while (pos < length) {+ samples[pos] += offset;
+ offset = (int)((LONG_LONG)(offset << 1) * factor >> 32);
+ pos += step;
+ }
+ }
+ cr->offset = offset;
+}
+
+
+
+sample_t dumb_click_remover_get_offset(DUMB_CLICK_REMOVER *cr)
+{+ return cr ? cr->offset : 0;
+}
+
+
+
+void dumb_destroy_click_remover(DUMB_CLICK_REMOVER *cr)
+{+ if (cr) {+ DUMB_CLICK *click = cr->click;
+ while (click) {+ DUMB_CLICK *next = click->next;
+ free(click);
+ click = next;
+ }
+ free(cr);
+ }
+}
+
+
+
+DUMB_CLICK_REMOVER **dumb_create_click_remover_array(int n)
+{+ int i;
+ DUMB_CLICK_REMOVER **cr;
+ if (n <= 0) return NULL;
+ cr = malloc(n * sizeof(*cr));
+ if (!cr) return NULL;
+ for (i = 0; i < n; i++) cr[i] = dumb_create_click_remover();
+ return cr;
+}
+
+
+
+void dumb_record_click_array(int n, DUMB_CLICK_REMOVER **cr, long pos, sample_t *step)
+{+ if (cr) {+ int i;
+ for (i = 0; i < n; i++)
+ dumb_record_click(cr[i], pos, step[i]);
+ }
+}
+
+
+
+void dumb_record_click_negative_array(int n, DUMB_CLICK_REMOVER **cr, long pos, sample_t *step)
+{+ if (cr) {+ int i;
+ for (i = 0; i < n; i++)
+ dumb_record_click(cr[i], pos, -step[i]);
+ }
+}
+
+
+
+void dumb_remove_clicks_array(int n, DUMB_CLICK_REMOVER **cr, sample_t **samples, long length, float halflife)
+{+ if (cr) {+ int i;
+ for (i = 0; i < n >> 1; i++) {+ dumb_remove_clicks(cr[i << 1], samples[i], length, 2, halflife);
+ dumb_remove_clicks(cr[(i << 1) + 1], samples[i] + 1, length, 2, halflife);
+ }
+ if (n & 1)
+ dumb_remove_clicks(cr[i << 1], samples[i], length, 1, halflife);
+ }
+}
+
+
+
+void dumb_click_remover_get_offset_array(int n, DUMB_CLICK_REMOVER **cr, sample_t *offset)
+{+ if (cr) {+ int i;
+ for (i = 0; i < n; i++)
+ if (cr[i]) offset[i] += cr[i]->offset;
+ }
+}
+
+
+
+void dumb_destroy_click_remover_array(int n, DUMB_CLICK_REMOVER **cr)
+{+ if (cr) {+ int i;
+ for (i = 0; i < n; i++) dumb_destroy_click_remover(cr[i]);
+ free(cr);
+ }
+}
--- /dev/null
+++ b/src/helpers/fir_resampler.c
@@ -1,0 +1,281 @@
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "internal/fir_resampler.h"
+
+enum { fir_width = 16 };+
+enum { fir_max_res = 1024 };+enum { fir_min_width = (fir_width < 4 ? 4 : fir_width) };+enum { fir_adj_width = fir_min_width / 4 * 4 + 2 };+enum { fir_stereo = 1 }; /* channel count, not boolean value */+enum { fir_write_offset = fir_adj_width * fir_stereo };+
+enum { fir_buffer_size = fir_width * 2 };+
+typedef short fir_impulse[fir_adj_width];
+
+/* exp slope to 31/32 of ln(8) */
+static const double fir_ratios[32] = {+ 1.000, 1.067, 1.139, 1.215, 1.297, 1.384, 1.477, 1.576,
+ 1.682, 1.795, 1.915, 2.044, 2.181, 2.327, 2.484, 2.650,
+ 2.828, 3.018, 3.221, 3.437, 3.668, 3.914, 4.177, 4.458,
+ 4.757, 5.076, 5.417, 5.781, 6.169, 6.583, 7.025, 7.497
+};
+
+static fir_impulse fir_impulses[32][fir_max_res];
+
+#undef PI
+#define PI 3.1415926535897932384626433832795029
+
+static void gen_sinc( double rolloff, int width, double offset, double spacing, double scale,
+ int count, short* out )
+{+ double const maxh = 256;
+ double const step = PI / maxh * spacing;
+ double const to_w = maxh * 2 / width;
+ double const pow_a_n = pow( rolloff, maxh );
+
+ double angle = (count / 2 - 1 + offset) * -step;
+
+ scale /= maxh * 2;
+
+ while ( count-- )
+ {+ double w;
+ *out++ = 0;
+ w = angle * to_w;
+ if ( fabs( w ) < PI )
+ {+ double rolloff_cos_a = rolloff * cos( angle );
+ double num = 1 - rolloff_cos_a -
+ pow_a_n * cos( maxh * angle ) +
+ pow_a_n * rolloff * cos( (maxh - 1) * angle );
+ double den = 1 - rolloff_cos_a - rolloff_cos_a + rolloff * rolloff;
+ double sinc = scale * num / den - scale;
+
+ out [-1] = (short) (cos( w ) * sinc + sinc);
+ }
+ angle += step;
+ }
+}
+
+typedef struct fir_resampler
+{+ int write_pos, write_filled;
+ int read_pos, read_filled;
+ unsigned short phase;
+ unsigned int phase_inc;
+ unsigned int ratio_set;
+ int buffer_in[fir_buffer_size * 2];
+ int buffer_out[fir_buffer_size];
+} fir_resampler;
+
+void * fir_resampler_create()
+{+ fir_resampler * r = ( fir_resampler * ) malloc( sizeof(fir_resampler) );
+ if ( !r ) return 0;
+
+ r->write_pos = 0;
+ r->write_filled = 0;
+ r->read_pos = 0;
+ r->read_filled = 0;
+ r->phase = 0;
+ r->phase_inc = 0;
+ r->ratio_set = 0;
+ memset( r->buffer_in, 0, sizeof(r->buffer_in) );
+ memset( r->buffer_out, 0, sizeof(r->buffer_out) );
+
+ return r;
+}
+
+void fir_resampler_delete(void * _r)
+{+ free( _r );
+}
+
+void * fir_resampler_dup(void * _r)
+{+ fir_resampler * r_in = ( fir_resampler * ) _r;
+ fir_resampler * r_out = ( fir_resampler * ) malloc( sizeof(fir_resampler) );
+ if ( !r_out ) return 0;
+
+ r_out->write_pos = r_in->write_pos;
+ r_out->write_filled = r_in->write_filled;
+ r_out->read_pos = r_in->read_pos;
+ r_out->read_filled = r_in->read_filled;
+ r_out->phase = r_in->phase;
+ r_out->phase_inc = r_in->phase_inc;
+ r_out->ratio_set = r_in->ratio_set;
+ memcpy( r_out->buffer_in, r_in->buffer_in, sizeof(r_in->buffer_in) );
+ memcpy( r_out->buffer_out, r_in->buffer_out, sizeof(r_in->buffer_out) );
+
+ return r_out;
+}
+
+int fir_resampler_get_free_count(void *_r)
+{+ fir_resampler * r = ( fir_resampler * ) _r;
+ return fir_buffer_size - r->write_filled;
+}
+
+int fir_resampler_ready(void *_r)
+{+ fir_resampler * r = ( fir_resampler * ) _r;
+ return r->write_filled > fir_adj_width;
+}
+
+void fir_resampler_clear(void *_r)
+{+ fir_resampler * r = ( fir_resampler * ) _r;
+ r->write_pos = 0;
+ r->write_filled = 0;
+ r->read_pos = 0;
+ r->read_filled = 0;
+ r->phase = 0;
+ memset( r->buffer_in, 0, sizeof(r->buffer_in) );
+}
+
+void fir_resampler_set_rate(void *_r, double new_factor)
+{+ fir_resampler * r = ( fir_resampler * ) _r;
+ r->phase_inc = (int)( new_factor * 65536.0 );
+ r->ratio_set = 0;
+ while ( r->ratio_set < 31 && new_factor > fir_ratios[ r->ratio_set ] ) r->ratio_set++;
+}
+
+void fir_resampler_write_sample(void *_r, short s)
+{+ fir_resampler * r = ( fir_resampler * ) _r;
+
+ if ( r->write_filled < fir_buffer_size )
+ {+ int s32 = s;
+
+ r->buffer_in[ r->write_pos ] = s32;
+ r->buffer_in[ r->write_pos + fir_buffer_size ] = s32;
+
+ ++r->write_filled;
+
+ r->write_pos = ( r->write_pos + 1 ) % fir_buffer_size;
+ }
+}
+
+void fir_init()
+{+ double const rolloff = 0.999;
+ double const gain = 1.0;
+
+ int const res = fir_max_res;
+
+ int i;
+
+ for (i = 0; i < 32; i++)
+ {+ double const ratio_ = fir_ratios[ i ];
+
+ double fraction = 1.0 / (double)fir_max_res;
+
+ double const filter = (ratio_ < 1.0) ? 1.0 : 1.0 / ratio_;
+ double pos = 0.0;
+ short* out = (short*) fir_impulses[ i ];
+ int n;
+ for ( n = res; --n >= 0; )
+ {+ gen_sinc( rolloff, (int) (fir_adj_width * filter + 1) & ~1, pos, filter,
+ (double) (0x7FFF * gain * filter), (int) fir_adj_width, out );
+ out += fir_adj_width;
+
+ pos += fraction;
+ }
+ }
+}
+
+int fir_resampler_run(void *_r, int ** out_, int * out_end)
+{+ fir_resampler * r = ( fir_resampler * ) _r;
+ int in_size = r->write_filled;
+ int const* in_ = r->buffer_in + fir_buffer_size + r->write_pos - r->write_filled;
+ int used = 0;
+ in_size -= fir_write_offset;
+ if ( in_size > 0 )
+ {+ int* out = *out_;
+ int const* in = in_;
+ int const* const in_end = in + in_size;
+ int phase = r->phase;
+ int phase_inc = r->phase_inc;
+ int ratio_set = r->ratio_set;
+
+ do
+ {+ // accumulate in extended precision
+ short const* imp = fir_impulses[ratio_set][(phase & 0xFFC0) >> 6];
+ int pt = imp [0];
+ int s = pt * in [0];
+ int n;
+ if ( out >= out_end )
+ break;
+ for ( n = (fir_adj_width - 2) / 2; n; --n )
+ {+ pt = imp [1];
+ s += pt * in [1];
+
+ // pre-increment more efficient on some RISC processors
+ imp += 2;
+ pt = imp [0];
+ in += 2;
+ s += pt * in [0];
+ }
+ pt = imp [1];
+ s += pt * in [1];
+
+ phase += phase_inc;
+
+ in += (phase >> 16) - fir_adj_width + 2;
+
+ phase &= 65535;
+
+ *out++ = (int) (s >> 7);
+ }
+ while ( in < in_end );
+
+ r->phase = phase;
+ *out_ = out;
+
+ used = in - in_;
+
+ r->write_filled -= used;
+ }
+
+ return used;
+}
+
+int fir_resampler_get_sample(void *_r)
+{+ fir_resampler * r = ( fir_resampler * ) _r;
+ if ( r->read_filled < 1 )
+ {+ int write_pos = ( r->read_pos + r->read_filled ) % fir_buffer_size;
+ int write_size = fir_buffer_size - write_pos;
+ int * out = r->buffer_out + write_pos;
+ if ( write_size > ( fir_buffer_size - r->read_filled ) )
+ write_size = fir_buffer_size - r->read_filled;
+ fir_resampler_run( r, &out, out + write_size );
+ r->read_filled += out - r->buffer_out - write_pos;
+ }
+ if ( r->read_filled < 1 )
+ return 0;
+ return r->buffer_out[ r->read_pos ];
+}
+
+void fir_resampler_remove_sample(void *_r)
+{+ fir_resampler * r = ( fir_resampler * ) _r;
+ if ( r->read_filled > 0 )
+ {+ --r->read_filled;
+ r->read_pos = ( r->read_pos + 1 ) % fir_buffer_size;
+ }
+}
--- /dev/null
+++ b/src/helpers/lpc.c
@@ -1,0 +1,320 @@
+/********************************************************************
+ * *
+ * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
+ * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
+ * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
+ * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
+ * *
+ * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2009 *
+ * by the Xiph.Org Foundation http://www.xiph.org/ *
+ * *
+ ********************************************************************
+
+ function: LPC low level routines
+ last mod: $Id: lpc.c 16227 2009-07-08 06:58:46Z xiphmont $
+
+ ********************************************************************/
+
+/* Some of these routines (autocorrelator, LPC coefficient estimator)
+ are derived from code written by Jutta Degener and Carsten Bormann;
+ thus we include their copyright below. The entirety of this file
+ is freely redistributable on the condition that both of these
+ copyright notices are preserved without modification. */
+
+/* Preserved Copyright: *********************************************/
+
+/* Copyright 1992, 1993, 1994 by Jutta Degener and Carsten Bormann,
+Technische Universita"t Berlin
+
+Any use of this software is permitted provided that this notice is not
+removed and that neither the authors nor the Technische Universita"t
+Berlin are deemed to have made any representations as to the
+suitability of this software for any purpose nor are held responsible
+for any defects of this software. THERE IS ABSOLUTELY NO WARRANTY FOR
+THIS SOFTWARE.
+
+As a matter of courtesy, the authors request to be informed about uses
+this software has found, about bugs in this software, and about any
+improvements that may be of general interest.
+
+Berlin, 28.11.1994
+Jutta Degener
+Carsten Bormann
+
+*********************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include "internal/stack_alloc.h"
+#include "internal/lpc.h"
+
+/* Autocorrelation LPC coeff generation algorithm invented by
+ N. Levinson in 1947, modified by J. Durbin in 1959. */
+
+/* Input : n elements of time doamin data
+ Output: m lpc coefficients, excitation energy */
+
+static float vorbis_lpc_from_data(float *data,float *lpci,int n,int m){+ double *aut=alloca(sizeof(*aut)*(m+1));
+ double *lpc=alloca(sizeof(*lpc)*(m));
+ double error;
+ double epsilon;
+ int i,j;
+
+ /* autocorrelation, p+1 lag coefficients */
+ j=m+1;
+ while(j--){+ double d=0; /* double needed for accumulator depth */
+ for(i=j;i<n;i++)d+=(double)data[i]*data[(i-j)];
+ aut[j]=d;
+ }
+
+ /* Generate lpc coefficients from autocorr values */
+
+ /* set our noise floor to about -100dB */
+ error=aut[0] * (1. + 1e-10);
+ epsilon=1e-9*aut[0]+1e-10;
+
+ for(i=0;i<m;i++){+ double r= -aut[i+1];
+
+ if(error<epsilon){+ memset(lpc+i,0,(m-i)*sizeof(*lpc));
+ goto done;
+ }
+
+ /* Sum up this iteration's reflection coefficient; note that in
+ Vorbis we don't save it. If anyone wants to recycle this code
+ and needs reflection coefficients, save the results of 'r' from
+ each iteration. */
+
+ for(j=0;j<i;j++)r-=lpc[j]*aut[i-j];
+ r/=error;
+
+ /* Update LPC coefficients and total error */
+
+ lpc[i]=r;
+ for(j=0;j<i/2;j++){+ double tmp=lpc[j];
+
+ lpc[j]+=r*lpc[i-1-j];
+ lpc[i-1-j]+=r*tmp;
+ }
+ if(i&1)lpc[j]+=lpc[j]*r;
+
+ error*=1.-r*r;
+
+ }
+
+ done:
+
+ /* slightly damp the filter */
+ {+ double g = .99;
+ double damp = g;
+ for(j=0;j<m;j++){+ lpc[j]*=damp;
+ damp*=g;
+ }
+ }
+
+ for(j=0;j<m;j++)lpci[j]=(float)lpc[j];
+
+ /* we need the error value to know how big an impulse to hit the
+ filter with later */
+
+ return error;
+}
+
+static void vorbis_lpc_predict(float *coeff,float *prime,int m,
+ float *data,long n){+
+ /* in: coeff[0...m-1] LPC coefficients
+ prime[0...m-1] initial values (allocated size of n+m-1)
+ out: data[0...n-1] data samples */
+
+ long i,j,o,p;
+ float y;
+ float *work=alloca(sizeof(*work)*(m+n));
+
+ if(!prime)
+ for(i=0;i<m;i++)
+ work[i]=0.f;
+ else
+ for(i=0;i<m;i++)
+ work[i]=prime[i];
+
+ for(i=0;i<n;i++){+ y=0;
+ o=i;
+ p=m;
+ for(j=0;j<m;j++)
+ y-=work[o++]*coeff[--p];
+
+ data[i]=work[o]=y;
+ }
+}
+
+#include "dumb.h"
+#include "internal/dumb.h"
+#include "internal/it.h"
+
+enum { lpc_max = 256 }; /* Maximum number of input samples to train the function */+enum { lpc_order = 32 }; /* Order of the filter */+enum { lpc_extra = 64 }; /* How many samples of padding to predict or silence */+
+
+/* This extra sample padding is really only needed by the FIR resampler, but it helps the other resamplers as well. */
+
+void dumb_it_add_lpc(struct DUMB_IT_SIGDATA *sigdata){+ float lpc[lpc_order * 2];
+ float lpc_input[lpc_max * 2];
+ float lpc_output[lpc_extra * 2];
+
+ signed char * s8;
+ signed short * s16;
+
+ int n, o, offset, lpc_samples;
+
+ for ( n = 0; n < sigdata->n_samples; n++ ) {+ IT_SAMPLE * sample = sigdata->sample + n;
+ if ( ( sample->flags & ( IT_SAMPLE_EXISTS | IT_SAMPLE_LOOP) ) == IT_SAMPLE_EXISTS ) {+ /* If we have enough sample data to train the filter, use the filter to generate the padding */
+ if ( sample->length >= lpc_order ) {+ lpc_samples = sample->length;
+ if (lpc_samples > lpc_max) lpc_samples = lpc_max;
+ offset = sample->length - lpc_samples;
+
+ if ( sample->flags & IT_SAMPLE_STEREO )
+ {+ if ( sample->flags & IT_SAMPLE_16BIT )
+ {+ s16 = ( signed short * ) sample->data;
+ s16 += offset * 2;
+ for ( o = 0; o < lpc_samples; o++ )
+ {+ lpc_input[ o ] = s16[ o * 2 + 0 ];
+ lpc_input[ o + lpc_max ] = s16[ o * 2 + 1 ];
+ }
+ }
+ else
+ {+ s8 = ( signed char * ) sample->data;
+ s8 += offset * 2;
+ for ( o = 0; o < lpc_samples; o++ )
+ {+ lpc_input[ o ] = s8[ o * 2 + 0 ];
+ lpc_input[ o + lpc_max ] = s8[ o * 2 + 1 ];
+ }
+ }
+
+ vorbis_lpc_from_data( lpc_input, lpc, lpc_samples, lpc_order );
+ vorbis_lpc_from_data( lpc_input + lpc_max, lpc + lpc_order, lpc_samples, lpc_order );
+
+ vorbis_lpc_predict( lpc, lpc_input + lpc_samples - lpc_order, lpc_order, lpc_output, lpc_extra );
+ vorbis_lpc_predict( lpc + lpc_order, lpc_input + lpc_max + lpc_samples - lpc_order, lpc_order, lpc_output + lpc_extra, lpc_extra );
+
+ if ( sample->flags & IT_SAMPLE_16BIT )
+ {+ s16 = ( signed short * ) realloc( sample->data, ( sample->length + lpc_extra ) * 2 * sizeof(short) );
+ sample->data = s16;
+
+ s16 += sample->length * 2;
+ sample->length += lpc_extra;
+
+ for ( o = 0; o < lpc_extra; o++ )
+ {+ s16[ o * 2 + 0 ] = lpc_output[ o ];
+ s16[ o * 2 + 1 ] = lpc_output[ o + lpc_extra ];
+ }
+ }
+ else
+ {+ s8 = ( signed char * ) realloc( sample->data, ( sample->length + lpc_extra ) * 2 );
+ sample->data = s8;
+
+ s8 += sample->length * 2;
+ sample->length += lpc_extra;
+
+ for ( o = 0; o < lpc_extra; o++ )
+ {+ s8[ o * 2 + 0 ] = lpc_output[ o ];
+ s8[ o * 2 + 1 ] = lpc_output[ o + lpc_extra ];
+ }
+ }
+ }
+ else
+ {+ if ( sample->flags & IT_SAMPLE_16BIT )
+ {+ s16 = ( signed short * ) sample->data;
+ s16 += offset;
+ for ( o = 0; o < lpc_samples; o++ )
+ {+ lpc_input[ o ] = s16[ o ];
+ }
+ }
+ else
+ {+ s8 = ( signed char * ) sample->data;
+ s8 += offset;
+ for ( o = 0; o < lpc_samples; o++ )
+ {+ lpc_input[ o ] = s8[ o ];
+ }
+ }
+
+ vorbis_lpc_from_data( lpc_input, lpc, lpc_samples, lpc_order );
+
+ vorbis_lpc_predict( lpc, lpc_input + lpc_samples - lpc_order, lpc_order, lpc_output, lpc_extra );
+
+ if ( sample->flags & IT_SAMPLE_16BIT )
+ {+ s16 = ( signed short * ) realloc( sample->data, ( sample->length + lpc_extra ) * sizeof(short) );
+ sample->data = s16;
+
+ s16 += sample->length;
+ sample->length += lpc_extra;
+
+ for ( o = 0; o < lpc_extra; o++ )
+ {+ s16[ o ] = lpc_output[ o ];
+ }
+ }
+ else
+ {+ s8 = ( signed char * ) realloc( sample->data, sample->length + lpc_extra );
+ sample->data = s8;
+
+ s8 += sample->length;
+ sample->length += lpc_extra;
+
+ for ( o = 0; o < lpc_extra; o++ )
+ {+ s8[ o ] = lpc_output[ o ];
+ }
+ }
+ }
+ }
+ else
+ /* Otherwise, pad with silence. */
+ {+ offset = sample->length;
+ lpc_samples = lpc_extra;
+
+ sample->length += lpc_samples;
+
+ n = 1;
+ if ( sample->flags & IT_SAMPLE_STEREO ) n *= 2;
+ if ( sample->flags & IT_SAMPLE_16BIT ) n *= 2;
+
+ offset *= n;
+ lpc_samples *= n;
+
+ sample->data = realloc( sample->data, offset + lpc_samples );
+ memset( (char*)sample->data + offset, 0, lpc_samples );
+ }
+ }
+ }
+}
--- /dev/null
+++ b/src/helpers/memfile.c
@@ -1,0 +1,117 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * memfile.c - Module for reading data from / / \ \
+ * memory using a DUMBFILE. | < / \_
+ * | \/ /\ /
+ * By entheh. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "dumb.h"
+
+
+
+typedef struct MEMFILE MEMFILE;
+
+struct MEMFILE
+{+ const char *ptr, *ptr_begin;
+ long left, size;
+};
+
+
+
+static int dumb_memfile_skip(void *f, long n)
+{+ MEMFILE *m = f;
+ if (n > m->left) return -1;
+ m->ptr += n;
+ m->left -= n;
+ return 0;
+}
+
+
+
+static int dumb_memfile_getc(void *f)
+{+ MEMFILE *m = f;
+ if (m->left <= 0) return -1;
+ m->left--;
+ return *(const unsigned char *)m->ptr++;
+}
+
+
+
+static long dumb_memfile_getnc(char *ptr, long n, void *f)
+{+ MEMFILE *m = f;
+ if (n > m->left) n = m->left;
+ memcpy(ptr, m->ptr, n);
+ m->ptr += n;
+ m->left -= n;
+ return n;
+}
+
+
+
+static void dumb_memfile_close(void *f)
+{+ free(f);
+}
+
+
+static int dumb_memfile_seek(void *f, long n)
+{+ MEMFILE *m = f;
+
+ m->ptr = m->ptr_begin + n;
+ m->left = m->size - n;
+
+ return 0;
+}
+
+
+static long dumb_memfile_get_size(void *f)
+{+ MEMFILE *m = f;
+ return m->size;
+}
+
+
+static const DUMBFILE_SYSTEM memfile_dfs = {+ NULL,
+ &dumb_memfile_skip,
+ &dumb_memfile_getc,
+ &dumb_memfile_getnc,
+ &dumb_memfile_close,
+ &dumb_memfile_seek,
+ &dumb_memfile_get_size
+};
+
+
+
+DUMBFILE *dumbfile_open_memory(const char *data, long size)
+{+ MEMFILE *m = malloc(sizeof(*m));
+ if (!m) return NULL;
+
+ m->ptr_begin = data;
+ m->ptr = data;
+ m->left = size;
+ m->size = size;
+
+ return dumbfile_open_ex(m, &memfile_dfs);
+}
--- /dev/null
+++ b/src/helpers/resamp2.inc
@@ -1,0 +1,162 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * resamp2.inc - Resampling helper template. / / \ \
+ * | < / \_
+ * By Bob and entheh. | \/ /\ /
+ * \_ / > /
+ * In order to find a good trade-off between | \ / /
+ * speed and accuracy in this code, some tests | ' /
+ * were carried out regarding the behaviour of \__/
+ * long long ints with gcc. The following code
+ * was tested:
+ *
+ * int a, b, c;
+ * c = ((long long)a * b) >> 16;
+ *
+ * DJGPP GCC Version 3.0.3 generated the following assembly language code for
+ * the multiplication and scaling, leaving the 32-bit result in EAX.
+ *
+ * movl -8(%ebp), %eax ; read one int into EAX
+ * imull -4(%ebp) ; multiply by the other; result goes in EDX:EAX
+ * shrdl $16, %edx, %eax ; shift EAX right 16, shifting bits in from EDX
+ *
+ * Note that a 32*32->64 multiplication is performed, allowing for high
+ * accuracy. On the Pentium 2 and above, shrdl takes two cycles (generally),
+ * so it is a minor concern when four multiplications are being performed
+ * (the cubic resampler). On the Pentium MMX and earlier, it takes four or
+ * more cycles, so this method is unsuitable for use in the low-quality
+ * resamplers.
+ *
+ * Since "long long" is a gcc-specific extension, we use LONG_LONG instead,
+ * defined in dumb.h. We may investigate later what code MSVC generates, but
+ * if it seems too slow then we suggest you use a good compiler.
+ *
+ * FIXME: these comments are somewhat out of date now.
+ */
+
+
+
+#define SUFFIX3 _1
+
+/* For convenience, returns nonzero on stop. */
+static int process_pickup(DUMB_RESAMPLER *resampler)
+{+ if (resampler->overshot < 0) {+ resampler->overshot = 0;
+ dumb_resample(resampler, NULL, 2, MONO_DEST_VOLUME_ZEROS, 1.0f); /* Doesn't matter which SUFFIX3. */
+ COPYSRC(resampler->X, 0, resampler->X, 1);
+ }
+
+ for (;;) {+ SRCTYPE *src = resampler->src;
+
+ if (resampler->dir < 0) {+ if (resampler->overshot >= 3 && resampler->pos+3 >= resampler->start) COPYSRC(resampler->X, 0, src, resampler->pos+3);
+ if (resampler->overshot >= 2 && resampler->pos+2 >= resampler->start) COPYSRC(resampler->X, 1, src, resampler->pos+2);
+ if (resampler->overshot >= 1 && resampler->pos+1 >= resampler->start) COPYSRC(resampler->X, 2, src, resampler->pos+1);
+ resampler->overshot = resampler->start - resampler->pos - 1;
+ } else {+ if (resampler->overshot >= 3 && resampler->pos-3 < resampler->end) COPYSRC(resampler->X, 0, src, resampler->pos-3);
+ if (resampler->overshot >= 2 && resampler->pos-2 < resampler->end) COPYSRC(resampler->X, 1, src, resampler->pos-2);
+ if (resampler->overshot >= 1 && resampler->pos-1 < resampler->end) COPYSRC(resampler->X, 2, src, resampler->pos-1);
+ resampler->overshot = resampler->pos - resampler->end;
+ }
+
+ if (resampler->overshot < 0) {+ resampler->overshot = 0;
+ return 0;
+ }
+
+ if (!resampler->pickup) {+ resampler->dir = 0;
+ return 1;
+ }
+ (*resampler->pickup)(resampler, resampler->pickup_data);
+ if (resampler->dir == 0) return 1;
+ ASSERT(resampler->dir == -1 || resampler->dir == 1);
+ }
+}
+
+
+
+/* Create mono destination resampler. */
+/* SUFFIX3 was set above. */
+#define VOLUME_PARAMETERS MONO_DEST_VOLUME_PARAMETERS
+#define VOLUME_VARIABLES MONO_DEST_VOLUME_VARIABLES
+#define SET_VOLUME_VARIABLES SET_MONO_DEST_VOLUME_VARIABLES
+#define RETURN_VOLUME_VARIABLES RETURN_MONO_DEST_VOLUME_VARIABLES
+#define VOLUMES_ARE_ZERO MONO_DEST_VOLUMES_ARE_ZERO
+#define PEEK_FIR MONO_DEST_PEEK_FIR
+#define MIX_FIR MONO_DEST_MIX_FIR
+#define MIX_ZEROS(op) *dst++ op 0
+#include "resamp3.inc"
+
+/* Create stereo destination resampler. */
+#define SUFFIX3 _2
+#define VOLUME_PARAMETERS DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right
+#define VOLUME_VARIABLES lvol, lvolr, lvold, lvolt, lvolm, rvol, rvolr, rvold, rvolt, rvolm
+#define SET_VOLUME_VARIABLES { \+ if ( volume_left ) { \+ lvolr = (int)(volume_left->volume * 16777216.0); \
+ lvold = (int)(volume_left->delta * 16777216.0); \
+ lvolt = (int)(volume_left->target * 16777216.0); \
+ lvolm = (int)(volume_left->mix * 16777216.0); \
+ lvol = MULSCV( lvolr, lvolm ); \
+ if ( lvolr == lvolt ) volume_left = NULL; \
+ } else { \+ lvol = 0; \
+ lvold = 0; \
+ lvolt = 0; \
+ lvolm = 0; \
+ } \
+ if ( volume_right ) { \+ rvolr = (int)(volume_right->volume * 16777216.0); \
+ rvold = (int)(volume_right->delta * 16777216.0); \
+ rvolt = (int)(volume_right->target * 16777216.0); \
+ rvolm = (int)(volume_right->mix * 16777216.0); \
+ rvol = MULSCV( rvolr, rvolm ); \
+ if ( rvolr == rvolt ) volume_right = NULL; \
+ } else { \+ rvol = 0; \
+ rvold = 0; \
+ rvolt = 0; \
+ rvolm = 0; \
+ } \
+}
+#define RETURN_VOLUME_VARIABLES { \+ if ( volume_left ) volume_left->volume = (float)lvolr / 16777216.0f; \
+ if ( volume_right ) volume_right->volume = (float)rvolr / 16777216.0f; \
+}
+#define VOLUMES_ARE_ZERO (lvol == 0 && lvolt == 0 && rvol == 0 && rvolt == 0)
+#define PEEK_FIR STEREO_DEST_PEEK_FIR
+#define MIX_FIR STEREO_DEST_MIX_FIR
+#define MIX_ZEROS(op) { *dst++ op 0; *dst++ op 0; }+#include "resamp3.inc"
+
+
+
+#undef MONO_DEST_VOLUMES_ARE_ZERO
+#undef SET_MONO_DEST_VOLUME_VARIABLES
+#undef RETURN_MONO_DEST_VOLUME_VARIABLES
+#undef MONO_DEST_VOLUME_ZEROS
+#undef MONO_DEST_VOLUME_VARIABLES
+#undef MONO_DEST_VOLUME_PARAMETERS
+#undef MONO_DEST_PEEK_FIR
+#undef STEREO_DEST_PEEK_FIR
+#undef MONO_DEST_MIX_FIR
+#undef STEREO_DEST_MIX_FIR
+#undef ADVANCE_FIR
+#undef POKE_FIR
+#undef COPYSRC2
+#undef COPYSRC
+#undef DIVIDE_BY_SRC_CHANNELS
+#undef SRC_CHANNELS
+#undef SUFFIX2
--- /dev/null
+++ b/src/helpers/resamp3.inc
@@ -1,0 +1,258 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * resamp3.inc - Resampling helper template. / / \ \
+ * | < / \_
+ * By Bob and entheh. | \/ /\ /
+ * \_ / > /
+ * In order to find a good trade-off between | \ / /
+ * speed and accuracy in this code, some tests | ' /
+ * were carried out regarding the behaviour of \__/
+ * long long ints with gcc. The following code
+ * was tested:
+ *
+ * int a, b, c;
+ * c = ((long long)a * b) >> 16;
+ *
+ * DJGPP GCC Version 3.0.3 generated the following assembly language code for
+ * the multiplication and scaling, leaving the 32-bit result in EAX.
+ *
+ * movl -8(%ebp), %eax ; read one int into EAX
+ * imull -4(%ebp) ; multiply by the other; result goes in EDX:EAX
+ * shrdl $16, %edx, %eax ; shift EAX right 16, shifting bits in from EDX
+ *
+ * Note that a 32*32->64 multiplication is performed, allowing for high
+ * accuracy. On the Pentium 2 and above, shrdl takes two cycles (generally),
+ * so it is a minor concern when four multiplications are being performed
+ * (the cubic resampler). On the Pentium MMX and earlier, it takes four or
+ * more cycles, so this method is unsuitable for use in the low-quality
+ * resamplers.
+ *
+ * Since "long long" is a gcc-specific extension, we use LONG_LONG instead,
+ * defined in dumb.h. We may investigate later what code MSVC generates, but
+ * if it seems too slow then we suggest you use a good compiler.
+ *
+ * FIXME: these comments are somewhat out of date now.
+ */
+
+
+
+long dumb_resample(DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, VOLUME_PARAMETERS, float delta)
+{+ int dt, inv_dt;
+ int VOLUME_VARIABLES;
+ long done;
+ long todo;
+ LONG_LONG todo64;
+ int quality;
+
+ if (!resampler || resampler->dir == 0) return 0;
+ ASSERT(resampler->dir == -1 || resampler->dir == 1);
+
+ done = 0;
+ dt = (int)(delta * 65536.0 + 0.5);
+ if (dt == 0 || dt == (int)-0x80000000) return 0;
+ inv_dt = (int)(1.0 / delta * 65536.0 + 0.5);
+ SET_VOLUME_VARIABLES;
+
+ if (VOLUMES_ARE_ZERO) dst = NULL;
+
+ _dumb_init_cubic();
+
+ quality = resampler->quality;
+
+ while (done < dst_size) {+ if (process_pickup(resampler)) {+ RETURN_VOLUME_VARIABLES;
+ return done;
+ }
+
+ if ((resampler->dir ^ dt) < 0)
+ dt = -dt;
+
+ if (resampler->dir < 0)
+ todo64 = ((((LONG_LONG)(resampler->pos - resampler->start) << 16) + resampler->subpos - dt) / -dt);
+ else
+ todo64 = ((((LONG_LONG)(resampler->end - resampler->pos) << 16) - resampler->subpos - 1 + dt) / dt);
+
+ if (todo64 < 0)
+ todo = 0;
+ else if (todo64 > dst_size - done)
+ todo = dst_size - done;
+ else
+ todo = (long) todo64;
+
+ done += todo;
+
+ {+ SRCTYPE *src = resampler->src;
+ long pos = resampler->pos;
+ int subpos = resampler->subpos;
+ long diff = pos;
+ long overshot;
+ if (resampler->dir < 0) {+ if (!dst) {+ /* Silence or simulation */
+ LONG_LONG new_subpos = subpos + (LONG_LONG)dt * todo;
+ pos += (long)(new_subpos >> 16);
+ subpos = (long)new_subpos & 65535;
+ } else {+ /* FIR resampling, backwards */
+ SRCTYPE *x;
+ if ( resampler->fir_resampler_ratio != delta ) {+ resampler_set_rate( resampler->fir_resampler[0], delta );
+ resampler_set_rate( resampler->fir_resampler[1], delta );
+ resampler->fir_resampler_ratio = delta;
+ }
+ x = &src[pos*SRC_CHANNELS];
+ while ( todo ) {+ while ( ( resampler_get_free_count( resampler->fir_resampler[0] ) ||
+ (!resampler_get_sample_count( resampler->fir_resampler[0] )
+#if SRC_CHANNELS == 2
+ && !resampler_get_sample_count( resampler->fir_resampler[1] )
+#endif
+ ) ) && pos >= resampler->start )
+ {+ POKE_FIR(0);
+ pos--;
+ x -= SRC_CHANNELS;
+ }
+ if ( !resampler_get_sample_count( resampler->fir_resampler[0] ) ) break;
+ MIX_FIR;
+ ADVANCE_FIR;
+ --todo;
+ }
+ done -= todo;
+ }
+ diff = diff - pos;
+ overshot = resampler->start - pos - 1;
+ if (diff >= 3) {+ COPYSRC2(resampler->X, 0, overshot < 3, src, pos+3);
+ COPYSRC2(resampler->X, 1, overshot < 2, src, pos+2);
+ COPYSRC2(resampler->X, 2, overshot < 1, src, pos+1);
+ } else if (diff >= 2) {+ COPYSRC(resampler->X, 0, resampler->X, 2);
+ COPYSRC2(resampler->X, 1, overshot < 2, src, pos+2);
+ COPYSRC2(resampler->X, 2, overshot < 1, src, pos+1);
+ } else if (diff >= 1) {+ COPYSRC(resampler->X, 0, resampler->X, 1);
+ COPYSRC(resampler->X, 1, resampler->X, 2);
+ COPYSRC2(resampler->X, 2, overshot < 1, src, pos+1);
+ }
+ } else {+ if (!dst) {+ /* Silence or simulation */
+ LONG_LONG new_subpos = subpos + (LONG_LONG)dt * todo;
+ pos += (long)(new_subpos >> 16);
+ subpos = (long)new_subpos & 65535;
+ } else {+ /* FIR resampling, forwards */
+ SRCTYPE *x;
+ if ( resampler->fir_resampler_ratio != delta ) {+ resampler_set_rate( resampler->fir_resampler[0], delta );
+ resampler_set_rate( resampler->fir_resampler[1], delta );
+ resampler->fir_resampler_ratio = delta;
+ }
+ x = &src[pos*SRC_CHANNELS];
+ while ( todo ) {+ while ( ( resampler_get_free_count( resampler->fir_resampler[0] ) ||
+ (!resampler_get_sample_count( resampler->fir_resampler[0] )
+#if SRC_CHANNELS == 2
+ && !resampler_get_sample_count( resampler->fir_resampler[1] )
+#endif
+ ) ) && pos < resampler->end )
+ {+ POKE_FIR(0);
+ pos++;
+ x += SRC_CHANNELS;
+ }
+ if ( !resampler_get_sample_count( resampler->fir_resampler[0] ) ) break;
+ MIX_FIR;
+ ADVANCE_FIR;
+ --todo;
+ }
+ done -= todo;
+ }
+ diff = pos - diff;
+ overshot = pos - resampler->end;
+ if (diff >= 3) {+ COPYSRC2(resampler->X, 0, overshot < 3, src, pos-3);
+ COPYSRC2(resampler->X, 1, overshot < 2, src, pos-2);
+ COPYSRC2(resampler->X, 2, overshot < 1, src, pos-1);
+ } else if (diff >= 2) {+ COPYSRC(resampler->X, 0, resampler->X, 2);
+ COPYSRC2(resampler->X, 1, overshot < 2, src, pos-2);
+ COPYSRC2(resampler->X, 2, overshot < 1, src, pos-1);
+ } else if (diff >= 1) {+ COPYSRC(resampler->X, 0, resampler->X, 1);
+ COPYSRC(resampler->X, 1, resampler->X, 2);
+ COPYSRC2(resampler->X, 2, overshot < 1, src, pos-1);
+ }
+ }
+ resampler->pos = pos;
+ resampler->subpos = subpos;
+ }
+ }
+
+ RETURN_VOLUME_VARIABLES;
+ return done;
+}
+
+
+
+void dumb_resample_get_current_sample(DUMB_RESAMPLER *resampler, VOLUME_PARAMETERS, sample_t *dst)
+{+ int VOLUME_VARIABLES;
+ SRCTYPE *src;
+ long pos;
+ int subpos;
+ int quality;
+ SRCTYPE *x;
+
+ if (!resampler || resampler->dir == 0) { MIX_ZEROS(=); return; }+ ASSERT(resampler->dir == -1 || resampler->dir == 1);
+
+ if (process_pickup(resampler)) { MIX_ZEROS(=); return; }+
+ SET_VOLUME_VARIABLES;
+
+ if (VOLUMES_ARE_ZERO) { MIX_ZEROS(=); return; }+
+ _dumb_init_cubic();
+
+ quality = resampler->quality;
+
+ src = resampler->src;
+ pos = resampler->pos;
+ subpos = resampler->subpos;
+ x = resampler->X;
+
+ if (resampler->dir < 0) {+ HEAVYASSERT(pos >= resampler->start);
+ /* FIR resampling, backwards */
+ PEEK_FIR;
+ } else {+ HEAVYASSERT(pos < resampler->end);
+ /* FIR resampling, forwards */
+ PEEK_FIR;
+ }
+}
+
+
+
+#undef MIX_ZEROS
+#undef MIX_FIR
+#undef PEEK_FIR
+#undef VOLUMES_ARE_ZERO
+#undef SET_VOLUME_VARIABLES
+#undef RETURN_VOLUME_VARIABLES
+#undef VOLUME_VARIABLES
+#undef VOLUME_PARAMETERS
+#undef SUFFIX3
--- /dev/null
+++ b/src/helpers/resample.c
@@ -1,0 +1,330 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * resample.c - Resampling helpers. / / \ \
+ * | < / \_
+ * By Bob and entheh. | \/ /\ /
+ * \_ / > /
+ * In order to find a good trade-off between | \ / /
+ * speed and accuracy in this code, some tests | ' /
+ * were carried out regarding the behaviour of \__/
+ * long long ints with gcc. The following code
+ * was tested:
+ *
+ * int a, b, c;
+ * c = ((long long)a * b) >> 16;
+ *
+ * DJGPP GCC Version 3.0.3 generated the following assembly language code for
+ * the multiplication and scaling, leaving the 32-bit result in EAX.
+ *
+ * movl -8(%ebp), %eax ; read one int into EAX
+ * imull -4(%ebp) ; multiply by the other; result goes in EDX:EAX
+ * shrdl $16, %edx, %eax ; shift EAX right 16, shifting bits in from EDX
+ *
+ * Note that a 32*32->64 multiplication is performed, allowing for high
+ * accuracy. On the Pentium 2 and above, shrdl takes two cycles (generally),
+ * so it is a minor concern when four multiplications are being performed
+ * (the cubic resampler). On the Pentium MMX and earlier, it takes four or
+ * more cycles, so this method is unsuitable for use in the low-quality
+ * resamplers.
+ *
+ * Since "long long" is a gcc-specific extension, we use LONG_LONG instead,
+ * defined in dumb.h. We may investigate later what code MSVC generates, but
+ * if it seems too slow then we suggest you use a good compiler.
+ *
+ * FIXME: these comments are somewhat out of date now.
+ */
+
+#include <math.h>
+#include "dumb.h"
+
+#include "internal/resampler.h"
+
+
+
+/* Compile with -DHEAVYDEBUG if you want to make sure the pick-up function is
+ * called when it should be. There will be a considerable performance hit,
+ * since at least one condition has to be tested for every sample generated.
+ */
+#ifdef HEAVYDEBUG
+#define HEAVYASSERT(cond) ASSERT(cond)
+#else
+#define HEAVYASSERT(cond)
+#endif
+
+
+
+/* Make MSVC shut the hell up about if ( upd ) UPDATE_VOLUME() conditions being constant */
+#ifdef _MSC_VER
+#pragma warning(disable:4127 4701)
+#endif
+
+
+
+/* A global variable for controlling resampling quality wherever a local
+ * specification doesn't override it. The following values are valid:
+ *
+ * 0 - DUMB_RQ_ALIASING - fastest
+ * 1 - DUMB_RQ_BLEP - nicer than aliasing, but slower
+ * 2 - DUMB_RQ_LINEAR
+ * 3 - DUMB_RQ_BLAM - band-limited linear interpolation, nice but slower
+ * 4 - DUMB_RQ_CUBIC
+ * 5 - DUMB_RQ_FIR - nicest
+ *
+ * Values outside the range 0-4 will behave the same as the nearest
+ * value within the range.
+ */
+int dumb_resampling_quality = DUMB_RQ_CUBIC;
+
+
+
+//#define MULSC(a, b) ((int)((LONG_LONG)(a) * (b) >> 16))
+//#define MULSC(a, b) ((a) * ((b) >> 2) >> 14)
+#define MULSCV(a, b) ((int)((LONG_LONG)(a) * (b) >> 32))
+#define MULSC(a, b) ((int)((LONG_LONG)((a) << 4) * ((b) << 12) >> 32))
+#define MULSC16(a, b) ((int)((LONG_LONG)((a) << 12) * ((b) << 12) >> 32))
+
+
+
+/* Executes the content 'iterator' times.
+ * Clobbers the 'iterator' variable.
+ * The loop is unrolled by four.
+ */
+#if 0
+#define LOOP4(iterator, CONTENT) \
+{ \+ if ((iterator) & 2) { \+ CONTENT; \
+ CONTENT; \
+ } \
+ if ((iterator) & 1) { \+ CONTENT; \
+ } \
+ (iterator) >>= 2; \
+ while (iterator) { \+ CONTENT; \
+ CONTENT; \
+ CONTENT; \
+ CONTENT; \
+ (iterator)--; \
+ } \
+}
+#else
+#define LOOP4(iterator, CONTENT) \
+{ \+ while ( (iterator)-- ) \
+ { \+ CONTENT; \
+ } \
+}
+#endif
+
+#define PASTERAW(a, b) a ## b /* This does not expand macros in b ... */
+#define PASTE(a, b) PASTERAW(a, b) /* ... but b is expanded during this substitution. */
+
+#define X PASTE(x.x, SRCBITS)
+
+
+
+void _dumb_init_cubic(void)
+{+ static int done = 0;
+ if (done) return;
+
+ resampler_init();
+
+ done = 1;
+}
+
+
+
+/* Create resamplers for 24-in-32-bit source samples. */
+
+/* #define SUFFIX
+ * MSVC warns if we try to paste a null SUFFIX, so instead we define
+ * special macros for the function names that don't bother doing the
+ * corresponding paste. The more generic definitions are further down.
+ */
+#define process_pickup PASTE(process_pickup, SUFFIX2)
+#define dumb_resample PASTE(PASTE(dumb_resample, SUFFIX2), SUFFIX3)
+#define dumb_resample_get_current_sample PASTE(PASTE(dumb_resample_get_current_sample, SUFFIX2), SUFFIX3)
+
+#define SRCTYPE sample_t
+#define SRCBITS 24
+#define FIR(x) (x >> 8)
+#include "resample.inc"
+
+/* Undefine the simplified macros. */
+#undef dumb_resample_get_current_sample
+#undef dumb_resample
+#undef process_pickup
+
+
+/* Now define the proper ones that use SUFFIX. */
+#define dumb_reset_resampler PASTE(dumb_reset_resampler, SUFFIX)
+#define dumb_start_resampler PASTE(dumb_start_resampler, SUFFIX)
+#define process_pickup PASTE(PASTE(process_pickup, SUFFIX), SUFFIX2)
+#define dumb_resample PASTE(PASTE(PASTE(dumb_resample, SUFFIX), SUFFIX2), SUFFIX3)
+#define dumb_resample_get_current_sample PASTE(PASTE(PASTE(dumb_resample_get_current_sample, SUFFIX), SUFFIX2), SUFFIX3)
+#define dumb_end_resampler PASTE(dumb_end_resampler, SUFFIX)
+
+/* Create resamplers for 16-bit source samples. */
+#define SUFFIX _16
+#define SRCTYPE short
+#define SRCBITS 16
+#define FIR(x) (x)
+#include "resample.inc"
+
+/* Create resamplers for 8-bit source samples. */
+#define SUFFIX _8
+#define SRCTYPE signed char
+#define SRCBITS 8
+#define FIR(x) (x << 8)
+#include "resample.inc"
+
+
+#undef dumb_reset_resampler
+#undef dumb_start_resampler
+#undef process_pickup
+#undef dumb_resample
+#undef dumb_resample_get_current_sample
+#undef dumb_end_resampler
+
+
+
+void dumb_reset_resampler_n(int n, DUMB_RESAMPLER *resampler, void *src, int src_channels, long pos, long start, long end, int quality)
+{+ if (n == 8)
+ dumb_reset_resampler_8(resampler, src, src_channels, pos, start, end, quality);
+ else if (n == 16)
+ dumb_reset_resampler_16(resampler, src, src_channels, pos, start, end, quality);
+ else
+ dumb_reset_resampler(resampler, src, src_channels, pos, start, end, quality);
+}
+
+
+
+DUMB_RESAMPLER *dumb_start_resampler_n(int n, void *src, int src_channels, long pos, long start, long end, int quality)
+{+ if (n == 8)
+ return dumb_start_resampler_8(src, src_channels, pos, start, end, quality);
+ else if (n == 16)
+ return dumb_start_resampler_16(src, src_channels, pos, start, end, quality);
+ else
+ return dumb_start_resampler(src, src_channels, pos, start, end, quality);
+}
+
+
+
+long dumb_resample_n_1_1(int n, DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume, float delta)
+{+ if (n == 8)
+ return dumb_resample_8_1_1(resampler, dst, dst_size, volume, delta);
+ else if (n == 16)
+ return dumb_resample_16_1_1(resampler, dst, dst_size, volume, delta);
+ else
+ return dumb_resample_1_1(resampler, dst, dst_size, volume, delta);
+}
+
+
+
+long dumb_resample_n_1_2(int n, DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta)
+{+ if (n == 8)
+ return dumb_resample_8_1_2(resampler, dst, dst_size, volume_left, volume_right, delta);
+ else if (n == 16)
+ return dumb_resample_16_1_2(resampler, dst, dst_size, volume_left, volume_right, delta);
+ else
+ return dumb_resample_1_2(resampler, dst, dst_size, volume_left, volume_right, delta);
+}
+
+
+
+long dumb_resample_n_2_1(int n, DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta)
+{+ if (n == 8)
+ return dumb_resample_8_2_1(resampler, dst, dst_size, volume_left, volume_right, delta);
+ else if (n == 16)
+ return dumb_resample_16_2_1(resampler, dst, dst_size, volume_left, volume_right, delta);
+ else
+ return dumb_resample_2_1(resampler, dst, dst_size, volume_left, volume_right, delta);
+}
+
+
+
+long dumb_resample_n_2_2(int n, DUMB_RESAMPLER *resampler, sample_t *dst, long dst_size, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, float delta)
+{+ if (n == 8)
+ return dumb_resample_8_2_2(resampler, dst, dst_size, volume_left, volume_right, delta);
+ else if (n == 16)
+ return dumb_resample_16_2_2(resampler, dst, dst_size, volume_left, volume_right, delta);
+ else
+ return dumb_resample_2_2(resampler, dst, dst_size, volume_left, volume_right, delta);
+}
+
+
+
+void dumb_resample_get_current_sample_n_1_1(int n, DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume, sample_t *dst)
+{+ if (n == 8)
+ dumb_resample_get_current_sample_8_1_1(resampler, volume, dst);
+ else if (n == 16)
+ dumb_resample_get_current_sample_16_1_1(resampler, volume, dst);
+ else
+ dumb_resample_get_current_sample_1_1(resampler, volume, dst);
+}
+
+
+
+void dumb_resample_get_current_sample_n_1_2(int n, DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst)
+{+ if (n == 8)
+ dumb_resample_get_current_sample_8_1_2(resampler, volume_left, volume_right, dst);
+ else if (n == 16)
+ dumb_resample_get_current_sample_16_1_2(resampler, volume_left, volume_right, dst);
+ else
+ dumb_resample_get_current_sample_1_2(resampler, volume_left, volume_right, dst);
+}
+
+
+
+void dumb_resample_get_current_sample_n_2_1(int n, DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst)
+{+ if (n == 8)
+ dumb_resample_get_current_sample_8_2_1(resampler, volume_left, volume_right, dst);
+ else if (n == 16)
+ dumb_resample_get_current_sample_16_2_1(resampler, volume_left, volume_right, dst);
+ else
+ dumb_resample_get_current_sample_2_1(resampler, volume_left, volume_right, dst);
+}
+
+
+
+void dumb_resample_get_current_sample_n_2_2(int n, DUMB_RESAMPLER *resampler, DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right, sample_t *dst)
+{+ if (n == 8)
+ dumb_resample_get_current_sample_8_2_2(resampler, volume_left, volume_right, dst);
+ else if (n == 16)
+ dumb_resample_get_current_sample_16_2_2(resampler, volume_left, volume_right, dst);
+ else
+ dumb_resample_get_current_sample_2_2(resampler, volume_left, volume_right, dst);
+}
+
+
+
+void dumb_end_resampler_n(int n, DUMB_RESAMPLER *resampler)
+{+ if (n == 8)
+ dumb_end_resampler_8(resampler);
+ else if (n == 16)
+ dumb_end_resampler_16(resampler);
+ else
+ dumb_end_resampler(resampler);
+}
--- /dev/null
+++ b/src/helpers/resample.inc
@@ -1,0 +1,256 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * resample.inc - Resampling helper template. / / \ \
+ * | < / \_
+ * By Bob and entheh. | \/ /\ /
+ * \_ / > /
+ * In order to find a good trade-off between | \ / /
+ * speed and accuracy in this code, some tests | ' /
+ * were carried out regarding the behaviour of \__/
+ * long long ints with gcc. The following code
+ * was tested:
+ *
+ * int a, b, c;
+ * c = ((long long)a * b) >> 16;
+ *
+ * DJGPP GCC Version 3.0.3 generated the following assembly language code for
+ * the multiplication and scaling, leaving the 32-bit result in EAX.
+ *
+ * movl -8(%ebp), %eax ; read one int into EAX
+ * imull -4(%ebp) ; multiply by the other; result goes in EDX:EAX
+ * shrdl $16, %edx, %eax ; shift EAX right 16, shifting bits in from EDX
+ *
+ * Note that a 32*32->64 multiplication is performed, allowing for high
+ * accuracy. On the Pentium 2 and above, shrdl takes two cycles (generally),
+ * so it is a minor concern when four multiplications are being performed
+ * (the cubic resampler). On the Pentium MMX and earlier, it takes four or
+ * more cycles, so this method is unsuitable for use in the low-quality
+ * resamplers.
+ *
+ * Since "long long" is a gcc-specific extension, we use LONG_LONG instead,
+ * defined in dumb.h. We may investigate later what code MSVC generates, but
+ * if it seems too slow then we suggest you use a good compiler.
+ *
+ * FIXME: these comments are somewhat out of date now.
+ */
+
+
+
+void dumb_reset_resampler(DUMB_RESAMPLER *resampler, SRCTYPE *src, int src_channels, long pos, long start, long end, int quality)
+{+ int i;
+ resampler->src = src;
+ resampler->pos = pos;
+ resampler->subpos = 0;
+ resampler->start = start;
+ resampler->end = end;
+ resampler->dir = 1;
+ resampler->pickup = NULL;
+ resampler->pickup_data = NULL;
+ if (quality < 0)
+ {+ resampler->quality = 0;
+ }
+ else if (quality > DUMB_RQ_N_LEVELS - 1)
+ {+ resampler->quality = DUMB_RQ_N_LEVELS - 1;
+ }
+ else
+ {+ resampler->quality = quality;
+ }
+ for (i = 0; i < src_channels*3; i++) resampler->X[i] = 0;
+ resampler->overshot = -1;
+ resampler->fir_resampler_ratio = 0;
+ resampler_clear(resampler->fir_resampler[0]);
+ resampler_clear(resampler->fir_resampler[1]);
+ resampler_set_quality(resampler->fir_resampler[0], resampler->quality);
+ resampler_set_quality(resampler->fir_resampler[1], resampler->quality);
+}
+
+
+
+DUMB_RESAMPLER *dumb_start_resampler(SRCTYPE *src, int src_channels, long pos, long start, long end, int quality)
+{+ DUMB_RESAMPLER *resampler = malloc(sizeof(*resampler));
+ if (!resampler) return NULL;
+ dumb_reset_resampler(resampler, src, src_channels, pos, start, end, quality);
+ return resampler;
+}
+
+
+
+#define UPDATE_VOLUME( pvol, vol ) { \+ if (pvol) { \+ vol##r += vol##d; \
+ if ((vol##d < 0 && vol##r <= vol##t) || \
+ (vol##d > 0 && vol##r >= vol##t)) { \+ pvol->volume = pvol->target; \
+ if ( pvol->declick_stage == 0 || \
+ pvol->declick_stage >= 3) \
+ pvol->declick_stage++; \
+ pvol = NULL; \
+ vol = MULSCV( vol##t, vol##m ); \
+ } else { \+ vol = MULSCV( vol##r, vol##m ); \
+ } \
+ } \
+}
+
+
+
+/* Create mono source resampler. */
+#define SUFFIX2 _1
+#define SRC_CHANNELS 1
+#define DIVIDE_BY_SRC_CHANNELS(x) (x)
+#define COPYSRC(dstarray, dstindex, srcarray, srcindex) (dstarray)[dstindex] = (srcarray)[srcindex]
+#define COPYSRC2(dstarray, dstindex, condition, srcarray, srcindex) (dstarray)[dstindex] = condition ? (srcarray)[srcindex] : 0
+#define MONO_DEST_VOLUME_PARAMETERS DUMB_VOLUME_RAMP_INFO * volume
+#define MONO_DEST_VOLUME_VARIABLES vol, volr, vold, volt, volm
+#define MONO_DEST_VOLUME_ZEROS 0
+#define SET_MONO_DEST_VOLUME_VARIABLES { \+ if ( volume ) { \+ volr = (int)(volume->volume * 16777216.0); \
+ vold = (int)(volume->delta * 16777216.0); \
+ volt = (int)(volume->target * 16777216.0); \
+ volm = (int)(volume->mix * 16777216.0); \
+ vol = MULSCV( volr, volm ); \
+ if ( volr == volt ) volume = NULL; \
+ } else { \+ vol = 0; \
+ vold = 0; \
+ volt = 0; \
+ volm = 0; \
+ } \
+}
+#define RETURN_MONO_DEST_VOLUME_VARIABLES if ( volume ) volume->volume = (float)volr / 16777216.0f
+#define MONO_DEST_VOLUMES_ARE_ZERO (vol == 0 && volt == 0)
+#define POKE_FIR(offset) { \+ resampler_write_sample( resampler->fir_resampler[0], FIR(x[offset]) ); \
+}
+#define MONO_DEST_PEEK_FIR *dst = MULSC( resampler_get_sample( resampler->fir_resampler[0] ), vol )
+#define MONO_DEST_MIX_FIR { \+ *dst++ += MULSC( resampler_get_sample( resampler->fir_resampler[0] ), vol ); \
+ UPDATE_VOLUME( volume, vol ); \
+}
+#define ADVANCE_FIR resampler_remove_sample( resampler->fir_resampler[0], 1 )
+#define STEREO_DEST_PEEK_FIR { \+ int sample = resampler_get_sample( resampler->fir_resampler[0] ); \
+ *dst++ = MULSC( sample, lvol ); \
+ *dst++ = MULSC( sample, rvol ); \
+}
+#define STEREO_DEST_MIX_FIR { \+ int sample = resampler_get_sample( resampler->fir_resampler[0] ); \
+ *dst++ += MULSC( sample, lvol ); \
+ *dst++ += MULSC( sample, rvol ); \
+ UPDATE_VOLUME( volume_left, lvol ); \
+ UPDATE_VOLUME( volume_right, rvol ); \
+}
+#include "resamp2.inc"
+
+/* Create stereo source resampler. */
+#define SUFFIX2 _2
+#define SRC_CHANNELS 2
+#define DIVIDE_BY_SRC_CHANNELS(x) ((x) >> 1)
+#define COPYSRC(dstarray, dstindex, srcarray, srcindex) { \+ (dstarray)[(dstindex)*2] = (srcarray)[(srcindex)*2]; \
+ (dstarray)[(dstindex)*2+1] = (srcarray)[(srcindex)*2+1]; \
+}
+#define COPYSRC2(dstarray, dstindex, condition, srcarray, srcindex) { \+ if (condition) { \+ (dstarray)[(dstindex)*2] = (srcarray)[(srcindex)*2]; \
+ (dstarray)[(dstindex)*2+1] = (srcarray)[(srcindex)*2+1]; \
+ } else { \+ (dstarray)[(dstindex)*2] = 0; \
+ (dstarray)[(dstindex)*2+1] = 0; \
+ } \
+}
+
+#define MONO_DEST_VOLUME_PARAMETERS DUMB_VOLUME_RAMP_INFO * volume_left, DUMB_VOLUME_RAMP_INFO * volume_right
+#define MONO_DEST_VOLUME_VARIABLES lvol, lvolr, lvold, lvolt, lvolm, rvol, rvolr, rvold, rvolt, rvolm
+#define MONO_DEST_VOLUME_ZEROS 0, 0
+#define SET_MONO_DEST_VOLUME_VARIABLES { \+ if ( volume_left ) { \+ lvolr = (int)(volume_left->volume * 16777216.0); \
+ lvold = (int)(volume_left->delta * 16777216.0); \
+ lvolt = (int)(volume_left->target * 16777216.0); \
+ lvolm = (int)(volume_left->mix * 16777216.0); \
+ lvol = MULSCV( lvolr, lvolm ); \
+ if ( lvolr == lvolt ) volume_left = NULL; \
+ } else { \+ lvol = 0; \
+ lvold = 0; \
+ lvolt = 0; \
+ lvolm = 0; \
+ } \
+ if ( volume_right ) { \+ rvolr = (int)(volume_right->volume * 16777216.0); \
+ rvold = (int)(volume_right->delta * 16777216.0); \
+ rvolt = (int)(volume_right->target * 16777216.0); \
+ rvolm = (int)(volume_right->mix * 16777216.0); \
+ rvol = MULSCV( rvolr, rvolm ); \
+ if ( rvolr == rvolt ) volume_right = NULL; \
+ } else { \+ rvol = 0; \
+ rvold = 0; \
+ rvolt = 0; \
+ rvolm = 0; \
+ } \
+}
+#define RETURN_MONO_DEST_VOLUME_VARIABLES { \+ if ( volume_left ) volume_left->volume = (float)lvolr / 16777216.0f; \
+ if ( volume_right ) volume_right->volume = (float)rvolr / 16777216.0f; \
+}
+#define MONO_DEST_VOLUMES_ARE_ZERO (lvol == 0 && lvolt == 0 && rvol == 0 && rvolt == 0)
+#define POKE_FIR(offset) { \+ resampler_write_sample( resampler->fir_resampler[0], FIR(x[(offset)*2+0]) ); \
+ resampler_write_sample( resampler->fir_resampler[1], FIR(x[(offset)*2+1]) ); \
+}
+#define MONO_DEST_PEEK_FIR { \+ *dst = MULSC( resampler_get_sample( resampler->fir_resampler[0] ), lvol ) + \
+ MULSC( resampler_get_sample( resampler->fir_resampler[1] ), rvol ); \
+}
+#define MONO_DEST_MIX_FIR { \+ *dst++ += MULSC( resampler_get_sample( resampler->fir_resampler[0] ), lvol ) + \
+ MULSC( resampler_get_sample( resampler->fir_resampler[1] ), rvol ); \
+ UPDATE_VOLUME( volume_left, lvol ); \
+ UPDATE_VOLUME( volume_right, rvol ); \
+}
+#define ADVANCE_FIR { \+ resampler_remove_sample( resampler->fir_resampler[0], 1 ); \
+ resampler_remove_sample( resampler->fir_resampler[1], 1 ); \
+}
+#define STEREO_DEST_PEEK_FIR { \+ *dst++ = MULSC( resampler_get_sample( resampler->fir_resampler[0] ), lvol ); \
+ *dst++ = MULSC( resampler_get_sample( resampler->fir_resampler[1] ), rvol ); \
+}
+#define STEREO_DEST_MIX_FIR { \+ *dst++ += MULSC( resampler_get_sample( resampler->fir_resampler[0] ), lvol ); \
+ *dst++ += MULSC( resampler_get_sample( resampler->fir_resampler[1] ), rvol ); \
+ UPDATE_VOLUME( volume_left, lvol ); \
+ UPDATE_VOLUME( volume_right, rvol ); \
+}
+#include "resamp2.inc"
+
+
+
+void dumb_end_resampler(DUMB_RESAMPLER *resampler)
+{+ if (resampler)
+ free(resampler);
+}
+
+
+
+#undef FIR
+#undef SRCBITS
+#undef SRCTYPE
+#undef SUFFIX
--- /dev/null
+++ b/src/helpers/resampler.c
@@ -1,0 +1,1494 @@
+#include <stdlib.h>
+#include <string.h>
+#define _USE_MATH_DEFINES
+#include <math.h>
+#if (defined(_M_IX86) || defined(__i386__) || defined(_M_X64) || defined(__amd64__))
+#include <xmmintrin.h>
+#define RESAMPLER_SSE
+#endif
+#ifdef __APPLE__
+#include <TargetConditionals.h>
+#if TARGET_CPU_ARM || TARGET_CPU_ARM64
+#define RESAMPLER_NEON
+#endif
+#elif (defined(__arm__) && defined(__ARM_NEON__))
+#define RESAMPLER_NEON
+#endif
+#ifdef RESAMPLER_NEON
+#include <arm_neon.h>
+#endif
+
+#ifdef _MSC_VER
+#define ALIGNED _declspec(align(16))
+#else
+#define ALIGNED __attribute__((aligned(16)))
+#endif
+
+#ifndef M_PI
+#define M_PI 3.14159265358979323846
+#endif
+
+#include "internal/resampler.h"
+
+enum { RESAMPLER_SHIFT = 10 };+enum { RESAMPLER_SHIFT_EXTRA = 8 };+enum { RESAMPLER_RESOLUTION = 1 << RESAMPLER_SHIFT };+enum { RESAMPLER_RESOLUTION_EXTRA = 1 << (RESAMPLER_SHIFT + RESAMPLER_SHIFT_EXTRA) };+enum { SINC_WIDTH = 16 };+enum { SINC_SAMPLES = RESAMPLER_RESOLUTION * SINC_WIDTH };+enum { CUBIC_SAMPLES = RESAMPLER_RESOLUTION * 4 };+
+static const float RESAMPLER_BLEP_CUTOFF = 0.90f;
+static const float RESAMPLER_BLAM_CUTOFF = 0.93f;
+static const float RESAMPLER_SINC_CUTOFF = 0.999f;
+
+ALIGNED static float cubic_lut[CUBIC_SAMPLES];
+
+static float sinc_lut[SINC_SAMPLES + 1];
+static float window_lut[SINC_SAMPLES + 1];
+
+enum { resampler_buffer_size = SINC_WIDTH * 4 };+
+static int fEqual(const float b, const float a)
+{+ return fabs(a - b) < 1.0e-6;
+}
+
+static float sinc(float x)
+{+ return fEqual(x, 0.0) ? 1.0 : sin(x * M_PI) / (x * M_PI);
+}
+
+#ifdef RESAMPLER_SSE
+#ifdef _MSC_VER
+#include <intrin.h>
+#elif defined(__clang__) || defined(__GNUC__)
+static inline void
+__cpuid(int *data, int selector)
+{+#if defined(__PIC__) && defined(__i386__)
+ asm("xchgl %%ebx, %%esi; cpuid; xchgl %%ebx, %%esi"+ : "=a" (data[0]),
+ "=S" (data[1]),
+ "=c" (data[2]),
+ "=d" (data[3])
+ : "0" (selector));
+#elif defined(__PIC__) && defined(__amd64__)
+ asm("xchg{q} {%%}rbx, %q1; cpuid; xchg{q} {%%}rbx, %q1"+ : "=a" (data[0]),
+ "=&r" (data[1]),
+ "=c" (data[2]),
+ "=d" (data[3])
+ : "0" (selector));
+#else
+ asm("cpuid"+ : "=a" (data[0]),
+ "=b" (data[1]),
+ "=c" (data[2]),
+ "=d" (data[3])
+ : "0" (selector));
+#endif
+}
+#else
+#define __cpuid(a,b) memset((a), 0, sizeof(int) * 4)
+#endif
+
+static int query_cpu_feature_sse() {+ int buffer[4];
+ __cpuid(buffer,1);
+ if ((buffer[3]&(1<<25)) == 0) return 0;
+ return 1;
+}
+
+static int resampler_has_sse = 0;
+#endif
+
+void resampler_init(void)
+{+ unsigned i;
+ double dx = (float)(SINC_WIDTH) / SINC_SAMPLES, x = 0.0;
+ for (i = 0; i < SINC_SAMPLES + 1; ++i, x += dx)
+ {+ float y = x / SINC_WIDTH;
+#if 0
+ // Blackman
+ float window = 0.42659 - 0.49656 * cos(M_PI + M_PI * y) + 0.076849 * cos(2.0 * M_PI * y);
+#elif 1
+ // Nuttal 3 term
+ float window = 0.40897 + 0.5 * cos(M_PI * y) + 0.09103 * cos(2.0 * M_PI * y);
+#elif 0
+ // C.R.Helmrich's 2 term window
+ float window = 0.79445 * cos(0.5 * M_PI * y) + 0.20555 * cos(1.5 * M_PI * y);
+#elif 0
+ // Lanczos
+ float window = sinc(y);
+#endif
+ sinc_lut[i] = fabs(x) < SINC_WIDTH ? sinc(x) : 0.0;
+ window_lut[i] = window;
+ }
+ dx = 1.0 / (float)(RESAMPLER_RESOLUTION);
+ x = 0.0;
+ for (i = 0; i < RESAMPLER_RESOLUTION; ++i, x += dx)
+ {+ cubic_lut[i*4] = (float)(-0.5 * x * x * x + x * x - 0.5 * x);
+ cubic_lut[i*4+1] = (float)( 1.5 * x * x * x - 2.5 * x * x + 1.0);
+ cubic_lut[i*4+2] = (float)(-1.5 * x * x * x + 2.0 * x * x + 0.5 * x);
+ cubic_lut[i*4+3] = (float)( 0.5 * x * x * x - 0.5 * x * x);
+ }
+#ifdef RESAMPLER_SSE
+ resampler_has_sse = query_cpu_feature_sse();
+#endif
+}
+
+typedef struct resampler
+{+ int write_pos, write_filled;
+ int read_pos, read_filled;
+ float phase;
+ float phase_inc;
+ float inv_phase;
+ float inv_phase_inc;
+ unsigned char quality;
+ signed char delay_added;
+ signed char delay_removed;
+ float last_amp;
+ float accumulator;
+ float buffer_in[resampler_buffer_size * 2];
+ float buffer_out[resampler_buffer_size + SINC_WIDTH * 2 - 1];
+} resampler;
+
+void * resampler_create(void)
+{+ resampler * r = ( resampler * ) malloc( sizeof(resampler) );
+ if ( !r ) return 0;
+
+ r->write_pos = SINC_WIDTH - 1;
+ r->write_filled = 0;
+ r->read_pos = 0;
+ r->read_filled = 0;
+ r->phase = 0;
+ r->phase_inc = 0;
+ r->inv_phase = 0;
+ r->inv_phase_inc = 0;
+ r->quality = RESAMPLER_QUALITY_MAX;
+ r->delay_added = -1;
+ r->delay_removed = -1;
+ r->last_amp = 0;
+ r->accumulator = 0;
+ memset( r->buffer_in, 0, sizeof(r->buffer_in) );
+ memset( r->buffer_out, 0, sizeof(r->buffer_out) );
+
+ return r;
+}
+
+void resampler_delete(void * _r)
+{+ free( _r );
+}
+
+void * resampler_dup(const void * _r)
+{+ void * r_out = malloc( sizeof(resampler) );
+ if ( !r_out ) return 0;
+
+ resampler_dup_inplace(r_out, _r);
+
+ return r_out;
+}
+
+void resampler_dup_inplace(void *_d, const void *_s)
+{+ const resampler * r_in = ( const resampler * ) _s;
+ resampler * r_out = ( resampler * ) _d;
+
+ r_out->write_pos = r_in->write_pos;
+ r_out->write_filled = r_in->write_filled;
+ r_out->read_pos = r_in->read_pos;
+ r_out->read_filled = r_in->read_filled;
+ r_out->phase = r_in->phase;
+ r_out->phase_inc = r_in->phase_inc;
+ r_out->inv_phase = r_in->inv_phase;
+ r_out->inv_phase_inc = r_in->inv_phase_inc;
+ r_out->quality = r_in->quality;
+ r_out->delay_added = r_in->delay_added;
+ r_out->delay_removed = r_in->delay_removed;
+ r_out->last_amp = r_in->last_amp;
+ r_out->accumulator = r_in->accumulator;
+ memcpy( r_out->buffer_in, r_in->buffer_in, sizeof(r_in->buffer_in) );
+ memcpy( r_out->buffer_out, r_in->buffer_out, sizeof(r_in->buffer_out) );
+}
+
+void resampler_set_quality(void *_r, int quality)
+{+ resampler * r = ( resampler * ) _r;
+ if (quality < RESAMPLER_QUALITY_MIN)
+ quality = RESAMPLER_QUALITY_MIN;
+ else if (quality > RESAMPLER_QUALITY_MAX)
+ quality = RESAMPLER_QUALITY_MAX;
+ if ( r->quality != quality )
+ {+ if ( quality == RESAMPLER_QUALITY_BLEP || r->quality == RESAMPLER_QUALITY_BLEP ||
+ quality == RESAMPLER_QUALITY_BLAM || r->quality == RESAMPLER_QUALITY_BLAM )
+ {+ r->read_pos = 0;
+ r->read_filled = 0;
+ r->last_amp = 0;
+ r->accumulator = 0;
+ memset( r->buffer_out, 0, sizeof(r->buffer_out) );
+ }
+ r->delay_added = -1;
+ r->delay_removed = -1;
+ }
+ r->quality = (unsigned char)quality;
+}
+
+int resampler_get_free_count(void *_r)
+{+ resampler * r = ( resampler * ) _r;
+ return resampler_buffer_size - r->write_filled;
+}
+
+static int resampler_min_filled(resampler *r)
+{+ switch (r->quality)
+ {+ default:
+ case RESAMPLER_QUALITY_ZOH:
+ case RESAMPLER_QUALITY_BLEP:
+ return 1;
+
+ case RESAMPLER_QUALITY_LINEAR:
+ case RESAMPLER_QUALITY_BLAM:
+ return 2;
+
+ case RESAMPLER_QUALITY_CUBIC:
+ return 4;
+
+ case RESAMPLER_QUALITY_SINC:
+ return SINC_WIDTH * 2;
+ }
+}
+
+static int resampler_input_delay(resampler *r)
+{+ switch (r->quality)
+ {+ default:
+ case RESAMPLER_QUALITY_ZOH:
+ case RESAMPLER_QUALITY_BLEP:
+ case RESAMPLER_QUALITY_LINEAR:
+ case RESAMPLER_QUALITY_BLAM:
+ return 0;
+
+ case RESAMPLER_QUALITY_CUBIC:
+ return 1;
+
+ case RESAMPLER_QUALITY_SINC:
+ return SINC_WIDTH - 1;
+ }
+}
+
+static int resampler_output_delay(resampler *r)
+{+ switch (r->quality)
+ {+ default:
+ case RESAMPLER_QUALITY_ZOH:
+ case RESAMPLER_QUALITY_LINEAR:
+ case RESAMPLER_QUALITY_CUBIC:
+ case RESAMPLER_QUALITY_SINC:
+ return 0;
+
+ case RESAMPLER_QUALITY_BLEP:
+ case RESAMPLER_QUALITY_BLAM:
+ return SINC_WIDTH - 1;
+ }
+}
+
+int resampler_ready(void *_r)
+{+ resampler * r = ( resampler * ) _r;
+ return r->write_filled > resampler_min_filled(r);
+}
+
+void resampler_clear(void *_r)
+{+ resampler * r = ( resampler * ) _r;
+ r->write_pos = SINC_WIDTH - 1;
+ r->write_filled = 0;
+ r->read_pos = 0;
+ r->read_filled = 0;
+ r->phase = 0;
+ r->delay_added = -1;
+ r->delay_removed = -1;
+ memset(r->buffer_in, 0, (SINC_WIDTH - 1) * sizeof(r->buffer_in[0]));
+ memset(r->buffer_in + resampler_buffer_size, 0, (SINC_WIDTH - 1) * sizeof(r->buffer_in[0]));
+ if (r->quality == RESAMPLER_QUALITY_BLEP || r->quality == RESAMPLER_QUALITY_BLAM)
+ {+ r->inv_phase = 0;
+ r->last_amp = 0;
+ r->accumulator = 0;
+ memset(r->buffer_out, 0, sizeof(r->buffer_out));
+ }
+}
+
+void resampler_set_rate(void *_r, double new_factor)
+{+ resampler * r = ( resampler * ) _r;
+ r->phase_inc = new_factor;
+ new_factor = 1.0 / new_factor;
+ r->inv_phase_inc = new_factor;
+}
+
+void resampler_write_sample(void *_r, short s)
+{+ resampler * r = ( resampler * ) _r;
+
+ if ( r->delay_added < 0 )
+ {+ r->delay_added = 0;
+ r->write_filled = resampler_input_delay( r );
+ }
+
+ if ( r->write_filled < resampler_buffer_size )
+ {+ float s32 = s;
+ s32 *= 256.0;
+
+ r->buffer_in[ r->write_pos ] = s32;
+ r->buffer_in[ r->write_pos + resampler_buffer_size ] = s32;
+
+ ++r->write_filled;
+
+ r->write_pos = ( r->write_pos + 1 ) % resampler_buffer_size;
+ }
+}
+
+void resampler_write_sample_fixed(void *_r, int s, unsigned char depth)
+{+ resampler * r = ( resampler * ) _r;
+
+ if ( r->delay_added < 0 )
+ {+ r->delay_added = 0;
+ r->write_filled = resampler_input_delay( r );
+ }
+
+ if ( r->write_filled < resampler_buffer_size )
+ {+ float s32 = s;
+ s32 /= (double)(1 << (depth - 1));
+
+ r->buffer_in[ r->write_pos ] = s32;
+ r->buffer_in[ r->write_pos + resampler_buffer_size ] = s32;
+
+ ++r->write_filled;
+
+ r->write_pos = ( r->write_pos + 1 ) % resampler_buffer_size;
+ }
+}
+
+static int resampler_run_zoh(resampler * r, float ** out_, float * out_end)
+{+ int in_size = r->write_filled;
+ float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
+ int used = 0;
+ in_size -= 1;
+ if ( in_size > 0 )
+ {+ float* out = *out_;
+ float const* in = in_;
+ float const* const in_end = in + in_size;
+ float phase = r->phase;
+ float phase_inc = r->phase_inc;
+
+ do
+ {+ float sample;
+
+ if ( out >= out_end )
+ break;
+
+ sample = *in;
+ *out++ = sample;
+
+ phase += phase_inc;
+
+ in += (int)phase;
+
+ phase = fmod(phase, 1.0f);
+ }
+ while ( in < in_end );
+
+ r->phase = phase;
+ *out_ = out;
+
+ used = (int)(in - in_);
+
+ r->write_filled -= used;
+ }
+
+ return used;
+}
+
+#ifndef RESAMPLER_NEON
+static int resampler_run_blep(resampler * r, float ** out_, float * out_end)
+{+ int in_size = r->write_filled;
+ float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
+ int used = 0;
+ in_size -= 1;
+ if ( in_size > 0 )
+ {+ float* out = *out_;
+ float const* in = in_;
+ float const* const in_end = in + in_size;
+ float last_amp = r->last_amp;
+ float inv_phase = r->inv_phase;
+ float inv_phase_inc = r->inv_phase_inc;
+
+ const int step = RESAMPLER_BLEP_CUTOFF * RESAMPLER_RESOLUTION;
+ const int window_step = RESAMPLER_RESOLUTION;
+
+ do
+ {+ float sample;
+
+ if ( out + SINC_WIDTH * 2 > out_end )
+ break;
+
+ sample = *in++ - last_amp;
+
+ if (sample)
+ {+ float kernel[SINC_WIDTH * 2], kernel_sum = 0.0f;
+ int phase_reduced = (int)(inv_phase * RESAMPLER_RESOLUTION);
+ int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
+ int i = SINC_WIDTH;
+
+ for (; i >= -SINC_WIDTH + 1; --i)
+ {+ int pos = i * step;
+ int window_pos = i * window_step;
+ kernel_sum += kernel[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
+ }
+ last_amp += sample;
+ sample /= kernel_sum;
+ for (i = 0; i < SINC_WIDTH * 2; ++i)
+ out[i] += sample * kernel[i];
+ }
+
+ inv_phase += inv_phase_inc;
+
+ out += (int)inv_phase;
+
+ inv_phase = fmod(inv_phase, 1.0f);
+ }
+ while ( in < in_end );
+
+ r->inv_phase = inv_phase;
+ r->last_amp = last_amp;
+ *out_ = out;
+
+ used = (int)(in - in_);
+
+ r->write_filled -= used;
+ }
+
+ return used;
+}
+#endif
+
+#ifdef RESAMPLER_SSE
+static int resampler_run_blep_sse(resampler * r, float ** out_, float * out_end)
+{+ int in_size = r->write_filled;
+ float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
+ int used = 0;
+ in_size -= 1;
+ if ( in_size > 0 )
+ {+ float* out = *out_;
+ float const* in = in_;
+ float const* const in_end = in + in_size;
+ float last_amp = r->last_amp;
+ float inv_phase = r->inv_phase;
+ float inv_phase_inc = r->inv_phase_inc;
+
+ const int step = RESAMPLER_BLEP_CUTOFF * RESAMPLER_RESOLUTION;
+ const int window_step = RESAMPLER_RESOLUTION;
+
+ do
+ {+ float sample;
+
+ if ( out + SINC_WIDTH * 2 > out_end )
+ break;
+
+ sample = *in++ - last_amp;
+
+ if (sample)
+ {+ float kernel_sum = 0.0f;
+ __m128 kernel[SINC_WIDTH / 2];
+ __m128 temp1, temp2;
+ __m128 samplex;
+ float *kernelf = (float*)(&kernel);
+ int phase_reduced = (int)(inv_phase * RESAMPLER_RESOLUTION);
+ int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
+ int i = SINC_WIDTH;
+
+ for (; i >= -SINC_WIDTH + 1; --i)
+ {+ int pos = i * step;
+ int window_pos = i * window_step;
+ kernel_sum += kernelf[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
+ }
+ last_amp += sample;
+ sample /= kernel_sum;
+ samplex = _mm_set1_ps( sample );
+ for (i = 0; i < SINC_WIDTH / 2; ++i)
+ {+ temp1 = _mm_load_ps( (const float *)( kernel + i ) );
+ temp1 = _mm_mul_ps( temp1, samplex );
+ temp2 = _mm_loadu_ps( (const float *) out + i * 4 );
+ temp1 = _mm_add_ps( temp1, temp2 );
+ _mm_storeu_ps( (float *) out + i * 4, temp1 );
+ }
+ }
+
+ inv_phase += inv_phase_inc;
+
+ out += (int)inv_phase;
+
+ inv_phase = fmod(inv_phase, 1.0f);
+ }
+ while ( in < in_end );
+
+ r->inv_phase = inv_phase;
+ r->last_amp = last_amp;
+ *out_ = out;
+
+ used = (int)(in - in_);
+
+ r->write_filled -= used;
+ }
+
+ return used;
+}
+#endif
+
+#ifdef RESAMPLER_NEON
+static int resampler_run_blep(resampler * r, float ** out_, float * out_end)
+{+ int in_size = r->write_filled;
+ float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
+ int used = 0;
+ in_size -= 1;
+ if ( in_size > 0 )
+ {+ float* out = *out_;
+ float const* in = in_;
+ float const* const in_end = in + in_size;
+ float last_amp = r->last_amp;
+ float inv_phase = r->inv_phase;
+ float inv_phase_inc = r->inv_phase_inc;
+
+ const int step = RESAMPLER_BLEP_CUTOFF * RESAMPLER_RESOLUTION;
+ const int window_step = RESAMPLER_RESOLUTION;
+
+ do
+ {+ float sample;
+
+ if ( out + SINC_WIDTH * 2 > out_end )
+ break;
+
+ sample = *in++ - last_amp;
+
+ if (sample)
+ {+ float kernel_sum = 0.0f;
+ float32x4_t kernel[SINC_WIDTH / 2];
+ float32x4_t temp1, temp2;
+ float32x4_t samplex;
+ float *kernelf = (float*)(&kernel);
+ int phase_reduced = (int)(inv_phase * RESAMPLER_RESOLUTION);
+ int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
+ int i = SINC_WIDTH;
+
+ for (; i >= -SINC_WIDTH + 1; --i)
+ {+ int pos = i * step;
+ int window_pos = i * window_step;
+ kernel_sum += kernelf[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
+ }
+ last_amp += sample;
+ sample /= kernel_sum;
+ samplex = vdupq_n_f32(sample);
+ for (i = 0; i < SINC_WIDTH / 2; ++i)
+ {+ temp1 = vld1q_f32( (const float32_t *)( kernel + i ) );
+ temp2 = vld1q_f32( (const float32_t *) out + i * 4 );
+ temp2 = vmlaq_f32( temp2, temp1, samplex );
+ vst1q_f32( (float32_t *) out + i * 4, temp2 );
+ }
+ }
+
+ inv_phase += inv_phase_inc;
+
+ out += (int)inv_phase;
+
+ inv_phase = fmod(inv_phase, 1.0f);
+ }
+ while ( in < in_end );
+
+ r->inv_phase = inv_phase;
+ r->last_amp = last_amp;
+ *out_ = out;
+
+ used = (int)(in - in_);
+
+ r->write_filled -= used;
+ }
+
+ return used;
+}
+#endif
+
+static int resampler_run_linear(resampler * r, float ** out_, float * out_end)
+{+ int in_size = r->write_filled;
+ float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
+ int used = 0;
+ in_size -= 2;
+ if ( in_size > 0 )
+ {+ float* out = *out_;
+ float const* in = in_;
+ float const* const in_end = in + in_size;
+ float phase = r->phase;
+ float phase_inc = r->phase_inc;
+
+ do
+ {+ float sample;
+
+ if ( out >= out_end )
+ break;
+
+ sample = in[0] + (in[1] - in[0]) * phase;
+ *out++ = sample;
+
+ phase += phase_inc;
+
+ in += (int)phase;
+
+ phase = fmod(phase, 1.0f);
+ }
+ while ( in < in_end );
+
+ r->phase = phase;
+ *out_ = out;
+
+ used = (int)(in - in_);
+
+ r->write_filled -= used;
+ }
+
+ return used;
+}
+
+#ifndef RESAMPLER_NEON
+static int resampler_run_blam(resampler * r, float ** out_, float * out_end)
+{+ int in_size = r->write_filled;
+ float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
+ int used = 0;
+ in_size -= 2;
+ if ( in_size > 0 )
+ {+ float* out = *out_;
+ float const* in = in_;
+ float const* const in_end = in + in_size;
+ float last_amp = r->last_amp;
+ float phase = r->phase;
+ float phase_inc = r->phase_inc;
+ float inv_phase = r->inv_phase;
+ float inv_phase_inc = r->inv_phase_inc;
+
+ const int step = RESAMPLER_BLAM_CUTOFF * RESAMPLER_RESOLUTION;
+ const int window_step = RESAMPLER_RESOLUTION;
+
+ do
+ {+ float sample;
+
+ if ( out + SINC_WIDTH * 2 > out_end )
+ break;
+
+ sample = in[0];
+ if (phase_inc < 1.0f)
+ sample += (in[1] - in[0]) * phase;
+ sample -= last_amp;
+
+ if (sample)
+ {+ float kernel[SINC_WIDTH * 2], kernel_sum = 0.0f;
+ int phase_reduced = (int)(inv_phase * RESAMPLER_RESOLUTION);
+ int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
+ int i = SINC_WIDTH;
+
+ for (; i >= -SINC_WIDTH + 1; --i)
+ {+ int pos = i * step;
+ int window_pos = i * window_step;
+ kernel_sum += kernel[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
+ }
+ last_amp += sample;
+ sample /= kernel_sum;
+ for (i = 0; i < SINC_WIDTH * 2; ++i)
+ out[i] += sample * kernel[i];
+ }
+
+ if (inv_phase_inc < 1.0f)
+ {+ ++in;
+ inv_phase += inv_phase_inc;
+ out += (int)inv_phase;
+ inv_phase = fmod(inv_phase, 1.0f);
+ }
+ else
+ {+ phase += phase_inc;
+ ++out;
+ in += (int)phase;
+ phase = fmod(phase, 1.0f);
+ }
+ }
+ while ( in < in_end );
+
+ r->phase = phase;
+ r->inv_phase = inv_phase;
+ r->last_amp = last_amp;
+ *out_ = out;
+
+ used = (int)(in - in_);
+
+ r->write_filled -= used;
+ }
+
+ return used;
+}
+#endif
+
+#ifdef RESAMPLER_SSE
+static int resampler_run_blam_sse(resampler * r, float ** out_, float * out_end)
+{+ int in_size = r->write_filled;
+ float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
+ int used = 0;
+ in_size -= 2;
+ if ( in_size > 0 )
+ {+ float* out = *out_;
+ float const* in = in_;
+ float const* const in_end = in + in_size;
+ float last_amp = r->last_amp;
+ float phase = r->phase;
+ float phase_inc = r->phase_inc;
+ float inv_phase = r->inv_phase;
+ float inv_phase_inc = r->inv_phase_inc;
+
+ const int step = RESAMPLER_BLAM_CUTOFF * RESAMPLER_RESOLUTION;
+ const int window_step = RESAMPLER_RESOLUTION;
+
+ do
+ {+ float sample;
+
+ if ( out + SINC_WIDTH * 2 > out_end )
+ break;
+
+ sample = in[0];
+ if (phase_inc < 1.0f)
+ {+ sample += (in[1] - in[0]) * phase;
+ }
+ sample -= last_amp;
+
+ if (sample)
+ {+ float kernel_sum = 0.0f;
+ __m128 kernel[SINC_WIDTH / 2];
+ __m128 temp1, temp2;
+ __m128 samplex;
+ float *kernelf = (float*)(&kernel);
+ int phase_reduced = (int)(inv_phase * RESAMPLER_RESOLUTION);
+ int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
+ int i = SINC_WIDTH;
+
+ for (; i >= -SINC_WIDTH + 1; --i)
+ {+ int pos = i * step;
+ int window_pos = i * window_step;
+ kernel_sum += kernelf[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
+ }
+ last_amp += sample;
+ sample /= kernel_sum;
+ samplex = _mm_set1_ps( sample );
+ for (i = 0; i < SINC_WIDTH / 2; ++i)
+ {+ temp1 = _mm_load_ps( (const float *)( kernel + i ) );
+ temp1 = _mm_mul_ps( temp1, samplex );
+ temp2 = _mm_loadu_ps( (const float *) out + i * 4 );
+ temp1 = _mm_add_ps( temp1, temp2 );
+ _mm_storeu_ps( (float *) out + i * 4, temp1 );
+ }
+ }
+
+ if (inv_phase_inc < 1.0f)
+ {+ ++in;
+ inv_phase += inv_phase_inc;
+ out += (int)inv_phase;
+ inv_phase = fmod(inv_phase, 1.0f);
+ }
+ else
+ {+ phase += phase_inc;
+ ++out;
+
+ if (phase >= 1.0f)
+ {+ ++in;
+ phase = fmod(phase, 1.0f);
+ }
+ }
+ }
+ while ( in < in_end );
+
+ r->phase = phase;
+ r->inv_phase = inv_phase;
+ r->last_amp = last_amp;
+ *out_ = out;
+
+ used = (int)(in - in_);
+
+ r->write_filled -= used;
+ }
+
+ return used;
+}
+#endif
+
+#ifdef RESAMPLER_NEON
+static int resampler_run_blam(resampler * r, float ** out_, float * out_end)
+{+ int in_size = r->write_filled;
+ float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
+ int used = 0;
+ in_size -= 2;
+ if ( in_size > 0 )
+ {+ float* out = *out_;
+ float const* in = in_;
+ float const* const in_end = in + in_size;
+ float last_amp = r->last_amp;
+ float phase = r->phase;
+ float phase_inc = r->phase_inc;
+ float inv_phase = r->inv_phase;
+ float inv_phase_inc = r->inv_phase_inc;
+
+ const int step = RESAMPLER_BLAM_CUTOFF * RESAMPLER_RESOLUTION;
+ const int window_step = RESAMPLER_RESOLUTION;
+
+ do
+ {+ float sample;
+
+ if ( out + SINC_WIDTH * 2 > out_end )
+ break;
+
+ sample = in[0];
+ if (phase_inc < 1.0f)
+ sample += (in[1] - in[0]) * phase;
+ sample -= last_amp;
+
+ if (sample)
+ {+ float kernel_sum = 0.0;
+ float32x4_t kernel[SINC_WIDTH / 2];
+ float32x4_t temp1, temp2;
+ float32x4_t samplex;
+ float *kernelf = (float*)(&kernel);
+ int phase_reduced = (int)(inv_phase * RESAMPLER_RESOLUTION);
+ int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
+ int i = SINC_WIDTH;
+
+ for (; i >= -SINC_WIDTH + 1; --i)
+ {+ int pos = i * step;
+ int window_pos = i * window_step;
+ kernel_sum += kernelf[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
+ }
+ last_amp += sample;
+ sample /= kernel_sum;
+ samplex = vdupq_n_f32(sample);
+ for (i = 0; i < SINC_WIDTH / 2; ++i)
+ {+ temp1 = vld1q_f32( (const float32_t *)( kernel + i ) );
+ temp2 = vld1q_f32( (const float32_t *) out + i * 4 );
+ temp2 = vmlaq_f32( temp2, temp1, samplex );
+ vst1q_f32( (float32_t *) out + i * 4, temp2 );
+ }
+ }
+
+ if (inv_phase_inc < 1.0f)
+ {+ ++in;
+ inv_phase += inv_phase_inc;
+ out += (int)inv_phase;
+ inv_phase = fmod(inv_phase, 1.0f);
+ }
+ else
+ {+ phase += phase_inc;
+ ++out;
+
+ if (phase >= 1.0f)
+ {+ ++in;
+ phase = fmod(phase, 1.0f);
+ }
+ }
+ }
+ while ( in < in_end );
+
+ r->phase = phase;
+ r->inv_phase = inv_phase;
+ r->last_amp = last_amp;
+ *out_ = out;
+
+ used = (int)(in - in_);
+
+ r->write_filled -= used;
+ }
+
+ return used;
+}
+#endif
+
+#ifndef RESAMPLER_NEON
+static int resampler_run_cubic(resampler * r, float ** out_, float * out_end)
+{+ int in_size = r->write_filled;
+ float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
+ int used = 0;
+ in_size -= 4;
+ if ( in_size > 0 )
+ {+ float* out = *out_;
+ float const* in = in_;
+ float const* const in_end = in + in_size;
+ float phase = r->phase;
+ float phase_inc = r->phase_inc;
+
+ do
+ {+ float * kernel;
+ int i;
+ float sample;
+
+ if ( out >= out_end )
+ break;
+
+ kernel = cubic_lut + (int)(phase * RESAMPLER_RESOLUTION) * 4;
+
+ for (sample = 0, i = 0; i < 4; ++i)
+ sample += in[i] * kernel[i];
+ *out++ = sample;
+
+ phase += phase_inc;
+
+ in += (int)phase;
+
+ phase = fmod(phase, 1.0f);
+ }
+ while ( in < in_end );
+
+ r->phase = phase;
+ *out_ = out;
+
+ used = (int)(in - in_);
+
+ r->write_filled -= used;
+ }
+
+ return used;
+}
+#endif
+
+#ifdef RESAMPLER_SSE
+static int resampler_run_cubic_sse(resampler * r, float ** out_, float * out_end)
+{+ int in_size = r->write_filled;
+ float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
+ int used = 0;
+ in_size -= 4;
+ if ( in_size > 0 )
+ {+ float* out = *out_;
+ float const* in = in_;
+ float const* const in_end = in + in_size;
+ float phase = r->phase;
+ float phase_inc = r->phase_inc;
+
+ do
+ {+ __m128 temp1, temp2;
+ __m128 samplex = _mm_setzero_ps();
+
+ if ( out >= out_end )
+ break;
+
+ temp1 = _mm_loadu_ps( (const float *)( in ) );
+ temp2 = _mm_load_ps( (const float *)( cubic_lut + (int)(phase * RESAMPLER_RESOLUTION) * 4 ) );
+ temp1 = _mm_mul_ps( temp1, temp2 );
+ samplex = _mm_add_ps( samplex, temp1 );
+ temp1 = _mm_movehl_ps( temp1, samplex );
+ samplex = _mm_add_ps( samplex, temp1 );
+ temp1 = samplex;
+ temp1 = _mm_shuffle_ps( temp1, samplex, _MM_SHUFFLE(0, 0, 0, 1) );
+ samplex = _mm_add_ps( samplex, temp1 );
+ _mm_store_ss( out, samplex );
+ ++out;
+
+ phase += phase_inc;
+
+ in += (int)phase;
+
+ phase = fmod(phase, 1.0f);
+ }
+ while ( in < in_end );
+
+ r->phase = phase;
+ *out_ = out;
+
+ used = (int)(in - in_);
+
+ r->write_filled -= used;
+ }
+
+ return used;
+}
+#endif
+
+#ifdef RESAMPLER_NEON
+static int resampler_run_cubic(resampler * r, float ** out_, float * out_end)
+{+ int in_size = r->write_filled;
+ float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
+ int used = 0;
+ in_size -= 4;
+ if ( in_size > 0 )
+ {+ float* out = *out_;
+ float const* in = in_;
+ float const* const in_end = in + in_size;
+ float phase = r->phase;
+ float phase_inc = r->phase_inc;
+
+ do
+ {+ float32x4_t temp1, temp2;
+ float32x2_t half;
+
+ if ( out >= out_end )
+ break;
+
+ temp1 = vld1q_f32( (const float32_t *)( in ) );
+ temp2 = vld1q_f32( (const float32_t *)( cubic_lut + (int)(phase * RESAMPLER_RESOLUTION) * 4 ) );
+ temp1 = vmulq_f32( temp1, temp2 );
+ half = vadd_f32(vget_high_f32(temp1), vget_low_f32(temp1));
+ *out++ = vget_lane_f32(vpadd_f32(half, half), 0);
+
+ phase += phase_inc;
+
+ in += (int)phase;
+
+ phase = fmod(phase, 1.0f);
+ }
+ while ( in < in_end );
+
+ r->phase = phase;
+ *out_ = out;
+
+ used = (int)(in - in_);
+
+ r->write_filled -= used;
+ }
+
+ return used;
+}
+#endif
+
+#ifndef RESAMPLER_NEON
+static int resampler_run_sinc(resampler * r, float ** out_, float * out_end)
+{+ int in_size = r->write_filled;
+ float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
+ int used = 0;
+ in_size -= SINC_WIDTH * 2;
+ if ( in_size > 0 )
+ {+ float* out = *out_;
+ float const* in = in_;
+ float const* const in_end = in + in_size;
+ float phase = r->phase;
+ float phase_inc = r->phase_inc;
+
+ int step = phase_inc > 1.0f ? (int)(RESAMPLER_RESOLUTION / phase_inc * RESAMPLER_SINC_CUTOFF) : (int)(RESAMPLER_RESOLUTION * RESAMPLER_SINC_CUTOFF);
+ int window_step = RESAMPLER_RESOLUTION;
+
+ do
+ {+ float kernel[SINC_WIDTH * 2], kernel_sum = 0.0;
+ int i = SINC_WIDTH;
+ int phase_reduced = (int)(phase * RESAMPLER_RESOLUTION);
+ int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
+ float sample;
+
+ if ( out >= out_end )
+ break;
+
+ for (; i >= -SINC_WIDTH + 1; --i)
+ {+ int pos = i * step;
+ int window_pos = i * window_step;
+ kernel_sum += kernel[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
+ }
+ for (sample = 0, i = 0; i < SINC_WIDTH * 2; ++i)
+ sample += in[i] * kernel[i];
+ *out++ = (float)(sample / kernel_sum);
+
+ phase += phase_inc;
+
+ in += (int)phase;
+
+ phase = fmod(phase, 1.0f);
+ }
+ while ( in < in_end );
+
+ r->phase = phase;
+ *out_ = out;
+
+ used = (int)(in - in_);
+
+ r->write_filled -= used;
+ }
+
+ return used;
+}
+#endif
+
+#ifdef RESAMPLER_SSE
+static int resampler_run_sinc_sse(resampler * r, float ** out_, float * out_end)
+{+ int in_size = r->write_filled;
+ float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
+ int used = 0;
+ in_size -= SINC_WIDTH * 2;
+ if ( in_size > 0 )
+ {+ float* out = *out_;
+ float const* in = in_;
+ float const* const in_end = in + in_size;
+ float phase = r->phase;
+ float phase_inc = r->phase_inc;
+
+ int step = phase_inc > 1.0f ? (int)(RESAMPLER_RESOLUTION / phase_inc * RESAMPLER_SINC_CUTOFF) : (int)(RESAMPLER_RESOLUTION * RESAMPLER_SINC_CUTOFF);
+ int window_step = RESAMPLER_RESOLUTION;
+
+ do
+ {+ // accumulate in extended precision
+ float kernel_sum = 0.0;
+ __m128 kernel[SINC_WIDTH / 2];
+ __m128 temp1, temp2;
+ __m128 samplex = _mm_setzero_ps();
+ float *kernelf = (float*)(&kernel);
+ int i = SINC_WIDTH;
+ int phase_reduced = (int)(phase * RESAMPLER_RESOLUTION);
+ int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
+
+ if ( out >= out_end )
+ break;
+
+ for (; i >= -SINC_WIDTH + 1; --i)
+ {+ int pos = i * step;
+ int window_pos = i * window_step;
+ kernel_sum += kernelf[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
+ }
+ for (i = 0; i < SINC_WIDTH / 2; ++i)
+ {+ temp1 = _mm_loadu_ps( (const float *)( in + i * 4 ) );
+ temp2 = _mm_load_ps( (const float *)( kernel + i ) );
+ temp1 = _mm_mul_ps( temp1, temp2 );
+ samplex = _mm_add_ps( samplex, temp1 );
+ }
+ kernel_sum = 1.0 / kernel_sum;
+ temp1 = _mm_movehl_ps( temp1, samplex );
+ samplex = _mm_add_ps( samplex, temp1 );
+ temp1 = samplex;
+ temp1 = _mm_shuffle_ps( temp1, samplex, _MM_SHUFFLE(0, 0, 0, 1) );
+ samplex = _mm_add_ps( samplex, temp1 );
+ temp1 = _mm_set_ss( kernel_sum );
+ samplex = _mm_mul_ps( samplex, temp1 );
+ _mm_store_ss( out, samplex );
+ ++out;
+
+ phase += phase_inc;
+
+ in += (int)phase;
+
+ phase = fmod(phase, 1.0f);
+ }
+ while ( in < in_end );
+
+ r->phase = phase;
+ *out_ = out;
+
+ used = (int)(in - in_);
+
+ r->write_filled -= used;
+ }
+
+ return used;
+}
+#endif
+
+#ifdef RESAMPLER_NEON
+static int resampler_run_sinc(resampler * r, float ** out_, float * out_end)
+{+ int in_size = r->write_filled;
+ float const* in_ = r->buffer_in + resampler_buffer_size + r->write_pos - r->write_filled;
+ int used = 0;
+ in_size -= SINC_WIDTH * 2;
+ if ( in_size > 0 )
+ {+ float* out = *out_;
+ float const* in = in_;
+ float const* const in_end = in + in_size;
+ float phase = r->phase;
+ float phase_inc = r->phase_inc;
+
+ int step = phase_inc > 1.0f ? (int)(RESAMPLER_RESOLUTION / phase_inc * RESAMPLER_SINC_CUTOFF) : (int)(RESAMPLER_RESOLUTION * RESAMPLER_SINC_CUTOFF);
+ int window_step = RESAMPLER_RESOLUTION;
+
+ do
+ {+ // accumulate in extended precision
+ float kernel_sum = 0.0;
+ float32x4_t kernel[SINC_WIDTH / 2];
+ float32x4_t temp1, temp2;
+ float32x4_t samplex = {0};+ float32x2_t half;
+ float *kernelf = (float*)(&kernel);
+ int i = SINC_WIDTH;
+ int phase_reduced = (int)(phase * RESAMPLER_RESOLUTION);
+ int phase_adj = phase_reduced * step / RESAMPLER_RESOLUTION;
+
+ if ( out >= out_end )
+ break;
+
+ for (; i >= -SINC_WIDTH + 1; --i)
+ {+ int pos = i * step;
+ int window_pos = i * window_step;
+ kernel_sum += kernelf[i + SINC_WIDTH - 1] = sinc_lut[abs(phase_adj - pos)] * window_lut[abs(phase_reduced - window_pos)];
+ }
+ for (i = 0; i < SINC_WIDTH / 2; ++i)
+ {+ temp1 = vld1q_f32( (const float32_t *)( in + i * 4 ) );
+ temp2 = vld1q_f32( (const float32_t *)( kernel + i ) );
+ samplex = vmlaq_f32( samplex, temp1, temp2 );
+ }
+ kernel_sum = 1.0 / kernel_sum;
+ samplex = vmulq_f32(samplex, vmovq_n_f32(kernel_sum));
+ half = vadd_f32(vget_high_f32(samplex), vget_low_f32(samplex));
+ *out++ = vget_lane_f32(vpadd_f32(half, half), 0);
+
+ phase += phase_inc;
+
+ in += (int)phase;
+
+ phase = fmod(phase, 1.0f);
+ }
+ while ( in < in_end );
+
+ r->phase = phase;
+ *out_ = out;
+
+ used = (int)(in - in_);
+
+ r->write_filled -= used;
+ }
+
+ return used;
+}
+#endif
+
+static void resampler_fill(resampler * r)
+{+ int min_filled = resampler_min_filled(r);
+ int quality = r->quality;
+ while ( r->write_filled > min_filled &&
+ r->read_filled < resampler_buffer_size )
+ {+ int write_pos = ( r->read_pos + r->read_filled ) % resampler_buffer_size;
+ int write_size = resampler_buffer_size - write_pos;
+ float * out = r->buffer_out + write_pos;
+ if ( write_size > ( resampler_buffer_size - r->read_filled ) )
+ write_size = resampler_buffer_size - r->read_filled;
+ switch (quality)
+ {+ case RESAMPLER_QUALITY_ZOH:
+ resampler_run_zoh( r, &out, out + write_size );
+ break;
+
+ case RESAMPLER_QUALITY_BLEP:
+ {+ int used;
+ int write_extra = 0;
+ if ( write_pos >= r->read_pos )
+ write_extra = r->read_pos;
+ if ( write_extra > SINC_WIDTH * 2 - 1 )
+ write_extra = SINC_WIDTH * 2 - 1;
+ memcpy( r->buffer_out + resampler_buffer_size, r->buffer_out, write_extra * sizeof(r->buffer_out[0]) );
+#ifdef RESAMPLER_SSE
+ if ( resampler_has_sse )
+ used = resampler_run_blep_sse( r, &out, out + write_size + write_extra );
+ else
+#endif
+ used = resampler_run_blep( r, &out, out + write_size + write_extra );
+ memcpy( r->buffer_out, r->buffer_out + resampler_buffer_size, write_extra * sizeof(r->buffer_out[0]) );
+ if (!used)
+ return;
+ break;
+ }
+
+ case RESAMPLER_QUALITY_LINEAR:
+ resampler_run_linear( r, &out, out + write_size );
+ break;
+
+ case RESAMPLER_QUALITY_BLAM:
+ {+ float * out_ = out;
+ int write_extra = 0;
+ if ( write_pos >= r->read_pos )
+ write_extra = r->read_pos;
+ if ( write_extra > SINC_WIDTH * 2 - 1 )
+ write_extra = SINC_WIDTH * 2 - 1;
+ memcpy( r->buffer_out + resampler_buffer_size, r->buffer_out, write_extra * sizeof(r->buffer_out[0]) );
+#ifdef RESAMPLER_SSE
+ if ( resampler_has_sse )
+ resampler_run_blam_sse( r, &out, out + write_size + write_extra );
+ else
+#endif
+ resampler_run_blam( r, &out, out + write_size + write_extra );
+ memcpy( r->buffer_out, r->buffer_out + resampler_buffer_size, write_extra * sizeof(r->buffer_out[0]) );
+ if ( out == out_ )
+ return;
+ break;
+ }
+
+ case RESAMPLER_QUALITY_CUBIC:
+#ifdef RESAMPLER_SSE
+ if ( resampler_has_sse )
+ resampler_run_cubic_sse( r, &out, out + write_size );
+ else
+#endif
+ resampler_run_cubic( r, &out, out + write_size );
+ break;
+
+ case RESAMPLER_QUALITY_SINC:
+#ifdef RESAMPLER_SSE
+ if ( resampler_has_sse )
+ resampler_run_sinc_sse( r, &out, out + write_size );
+ else
+#endif
+ resampler_run_sinc( r, &out, out + write_size );
+ break;
+ }
+ r->read_filled += out - r->buffer_out - write_pos;
+ }
+}
+
+static void resampler_fill_and_remove_delay(resampler * r)
+{+ resampler_fill( r );
+ if ( r->delay_removed < 0 )
+ {+ int delay = resampler_output_delay( r );
+ r->delay_removed = 0;
+ while ( delay-- )
+ resampler_remove_sample( r, 1 );
+ }
+}
+
+int resampler_get_sample_count(void *_r)
+{+ resampler * r = ( resampler * ) _r;
+ if ( r->read_filled < 1 && ((r->quality != RESAMPLER_QUALITY_BLEP && r->quality != RESAMPLER_QUALITY_BLAM) || r->inv_phase_inc))
+ resampler_fill_and_remove_delay( r );
+ return r->read_filled;
+}
+
+int resampler_get_sample(void *_r)
+{+ resampler * r = ( resampler * ) _r;
+ if ( r->read_filled < 1 && r->phase_inc)
+ resampler_fill_and_remove_delay( r );
+ if ( r->read_filled < 1 )
+ return 0;
+ if ( r->quality == RESAMPLER_QUALITY_BLEP || r->quality == RESAMPLER_QUALITY_BLAM )
+ return (int)(r->buffer_out[ r->read_pos ] + r->accumulator);
+ else
+ return (int)r->buffer_out[ r->read_pos ];
+}
+
+float resampler_get_sample_float(void *_r)
+{+ resampler * r = ( resampler * ) _r;
+ if ( r->read_filled < 1 && r->phase_inc)
+ resampler_fill_and_remove_delay( r );
+ if ( r->read_filled < 1 )
+ return 0;
+ if ( r->quality == RESAMPLER_QUALITY_BLEP || r->quality == RESAMPLER_QUALITY_BLAM )
+ return r->buffer_out[ r->read_pos ] + r->accumulator;
+ else
+ return r->buffer_out[ r->read_pos ];
+}
+
+void resampler_remove_sample(void *_r, int decay)
+{+ resampler * r = ( resampler * ) _r;
+ if ( r->read_filled > 0 )
+ {+ if ( r->quality == RESAMPLER_QUALITY_BLEP || r->quality == RESAMPLER_QUALITY_BLAM )
+ {+ r->accumulator += r->buffer_out[ r->read_pos ];
+ r->buffer_out[ r->read_pos ] = 0;
+ if (decay)
+ {+ r->accumulator -= r->accumulator * (1.0f / 8192.0f);
+ if (fabs(r->accumulator) < 1e-20f)
+ r->accumulator = 0;
+ }
+ }
+ --r->read_filled;
+ r->read_pos = ( r->read_pos + 1 ) % resampler_buffer_size;
+ }
+}
--- /dev/null
+++ b/src/helpers/riff.c
@@ -1,0 +1,85 @@
+#include "dumb.h"
+#include "internal/riff.h"
+
+#include <stdlib.h>
+
+struct riff * riff_parse( DUMBFILE * f, long offset, long size, unsigned proper )
+{+ unsigned stream_size;
+ struct riff * stream;
+
+ if ( size < 8 ) return 0;
+
+ if ( dumbfile_seek(f, offset, DFS_SEEK_SET) ) return 0;
+ if ( dumbfile_mgetl(f) != DUMB_ID('R','I','F','F') ) return 0;+
+ stream_size = dumbfile_igetl(f);
+ if ( stream_size + 8 > size ) return 0;
+ if ( stream_size < 4 ) return 0;
+
+ stream = (struct riff *) malloc( sizeof( struct riff ) );
+ if ( ! stream ) return 0;
+
+ stream->type = dumbfile_mgetl(f);
+ stream->chunk_count = 0;
+ stream->chunks = 0;
+
+ stream_size -= 4;
+
+ while ( stream_size && !dumbfile_error(f) )
+ {+ struct riff_chunk * chunk;
+ if ( stream_size < 8 ) break;
+ stream->chunks = ( struct riff_chunk * ) realloc( stream->chunks, ( stream->chunk_count + 1 ) * sizeof( struct riff_chunk ) );
+ if ( ! stream->chunks ) break;
+ chunk = stream->chunks + stream->chunk_count;
+ chunk->type = dumbfile_mgetl(f);
+ chunk->size = dumbfile_igetl(f);
+ chunk->offset = dumbfile_pos(f);
+ stream_size -= 8;
+ if ( stream_size < chunk->size ) break;
+ if ( chunk->type == DUMB_ID('R','I','F','F') )+ {+ chunk->nested = riff_parse( f, chunk->offset - 8, chunk->size + 8, proper );
+ if ( ! chunk->nested ) break;
+ }
+ else
+ {+ chunk->nested = 0;
+ }
+ dumbfile_seek(f, chunk->offset + chunk->size, DFS_SEEK_SET);
+ stream_size -= chunk->size;
+ if ( proper && ( chunk->size & 1 ) )
+ {+ dumbfile_skip(f, 1);
+ -- stream_size;
+ }
+ ++stream->chunk_count;
+ }
+
+ if ( stream_size )
+ {+ riff_free( stream );
+ stream = 0;
+ }
+
+ return stream;
+}
+
+void riff_free( struct riff * stream )
+{+ if ( stream )
+ {+ if ( stream->chunks )
+ {+ unsigned i;
+ for ( i = 0; i < stream->chunk_count; ++i )
+ {+ struct riff_chunk * chunk = stream->chunks + i;
+ if ( chunk->nested ) riff_free( chunk->nested );
+ }
+ free( stream->chunks );
+ }
+ free( stream );
+ }
+}
--- /dev/null
+++ b/src/helpers/sampbuf.c
@@ -1,0 +1,64 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * sampbuf.c - Helper for allocating sample / / \ \
+ * buffers. | < / \_
+ * | \/ /\ /
+ * By entheh. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include "dumb.h"
+
+
+
+/* DEPRECATED */
+sample_t **create_sample_buffer(int n_channels, long length)
+{+ int i;
+ sample_t **samples = malloc(n_channels * sizeof(*samples));
+ if (!samples) return NULL;
+ samples[0] = malloc(n_channels * length * sizeof(*samples[0]));
+ if (!samples[0]) {+ free(samples);
+ return NULL;
+ }
+ for (i = 1; i < n_channels; i++) samples[i] = samples[i-1] + length;
+ return samples;
+}
+
+
+
+sample_t **allocate_sample_buffer(int n_channels, long length)
+{+ int i;
+ sample_t **samples = malloc(((n_channels + 1) >> 1) * sizeof(*samples));
+ if (!samples) return NULL;
+ samples[0] = malloc(n_channels * length * sizeof(*samples[0]));
+ if (!samples[0]) {+ free(samples);
+ return NULL;
+ }
+ for (i = 1; i < (n_channels + 1) >> 1; i++) samples[i] = samples[i-1] + length*2;
+ return samples;
+}
+
+
+
+void destroy_sample_buffer(sample_t **samples)
+{+ if (samples) {+ free(samples[0]);
+ free(samples);
+ }
+}
--- /dev/null
+++ b/src/helpers/silence.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * silence.c - Silencing helper. / / \ \
+ * | < / \_
+ * By entheh. | \/ /\ /
+ * \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <string.h>
+#include "dumb.h"
+
+
+
+void dumb_silence(sample_t *samples, long length)
+{+ memset(samples, 0, length * sizeof(*samples));
+}
+
--- /dev/null
+++ b/src/helpers/stdfile.c
@@ -1,0 +1,146 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * stdfile.c - stdio file input module. / / \ \
+ * | < / \_
+ * By entheh. | \/ /\ /
+ * \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdio.h>
+
+#include "dumb.h"
+
+
+
+typedef struct dumb_stdfile
+{+ FILE * file;
+ long size;
+} dumb_stdfile;
+
+
+
+static void *dumb_stdfile_open(const char *filename)
+{+ dumb_stdfile * file = ( dumb_stdfile * ) malloc( sizeof(dumb_stdfile) );
+ if ( !file ) return 0;
+ file->file = fopen(filename, "rb");
+ fseek(file->file, 0, SEEK_END);
+ file->size = ftell(file->file);
+ fseek(file->file, 0, SEEK_SET);
+ return file;
+}
+
+
+
+static int dumb_stdfile_skip(void *f, long n)
+{+ dumb_stdfile * file = ( dumb_stdfile * ) f;
+ return fseek(file->file, n, SEEK_CUR);
+}
+
+
+
+static int dumb_stdfile_getc(void *f)
+{+ dumb_stdfile * file = ( dumb_stdfile * ) f;
+ return fgetc(file->file);
+}
+
+
+
+static long dumb_stdfile_getnc(char *ptr, long n, void *f)
+{+ dumb_stdfile * file = ( dumb_stdfile * ) f;
+ return fread(ptr, 1, n, file->file);
+}
+
+
+
+static void dumb_stdfile_close(void *f)
+{+ dumb_stdfile * file = ( dumb_stdfile * ) f;
+ fclose(file->file);
+ free(f);
+}
+
+
+
+static void dumb_stdfile_noclose(void *f)
+{+ free(f);
+}
+
+
+
+static int dumb_stdfile_seek(void *f, long n)
+{+ dumb_stdfile * file = ( dumb_stdfile * ) f;
+ return fseek(file->file, n, SEEK_SET);
+}
+
+
+
+static long dumb_stdfile_get_size(void *f)
+{+ dumb_stdfile * file = ( dumb_stdfile * ) f;
+ return file->size;
+}
+
+
+
+static const DUMBFILE_SYSTEM stdfile_dfs = {+ &dumb_stdfile_open,
+ &dumb_stdfile_skip,
+ &dumb_stdfile_getc,
+ &dumb_stdfile_getnc,
+ &dumb_stdfile_close,
+ &dumb_stdfile_seek,
+ &dumb_stdfile_get_size
+};
+
+
+
+void dumb_register_stdfiles(void)
+{+ register_dumbfile_system(&stdfile_dfs);
+}
+
+
+
+static const DUMBFILE_SYSTEM stdfile_dfs_leave_open = {+ NULL,
+ &dumb_stdfile_skip,
+ &dumb_stdfile_getc,
+ &dumb_stdfile_getnc,
+ &dumb_stdfile_noclose,
+ &dumb_stdfile_seek,
+ &dumb_stdfile_get_size
+};
+
+
+
+DUMBFILE *dumbfile_open_stdfile(FILE *p)
+{+ dumb_stdfile * file = ( dumb_stdfile * ) malloc( sizeof(dumb_stdfile) );
+ DUMBFILE *d;
+ if ( !file ) return 0;
+ file->file = p;
+ fseek(p, 0, SEEK_END);
+ file->size = ftell(p);
+ fseek(p, 0, SEEK_SET);
+ d = dumbfile_open_ex(file, &stdfile_dfs_leave_open);
+
+ return d;
+}
--- /dev/null
+++ b/src/helpers/tarray.c
@@ -1,0 +1,175 @@
+#include "internal/tarray.h"
+
+#include <string.h>
+
+ /*
+ Structures which contain the play times of each pattern and row combination in the song,
+ not guaranteed to be valid for the whole song until the loop status is no longer zero.
+ The initial count and restart count will both be zero on song start, then both will be
+ incremented until the song loops. Restart count will be reset to zero on loop for all
+ rows which have a time equal to or greater than the loop start point, so time keeping
+ functions will know which timestamp the song is currently located at.
+
+ Timestamp lists are guaranteed to be allocated in blocks of 16 timestamps at a time.
+ */
+
+ /*
+ We don't need full timekeeping because the player loop only wants the first play time
+ of the loop start order/row. We also don't really want full timekeeping because it
+ involves a lot of memory allocations, which is also slow.
+ */
+
+#undef FULL_TIMEKEEPING
+
+typedef struct DUMB_IT_ROW_TIME
+{+ unsigned int count, restart_count;
+#ifndef FULL_TIMEKEEPING
+ LONG_LONG first_time;
+#else
+ LONG_LONG * times;
+#endif
+} DUMB_IT_ROW_TIME;
+
+void * timekeeping_array_create(size_t size)
+{+ size_t * _size = (size_t *) calloc( 1, sizeof(size_t) + sizeof(DUMB_IT_ROW_TIME) * size );
+ if ( _size ) {+ *_size = size;
+ }
+ return _size;
+}
+
+void timekeeping_array_destroy(void * array)
+{+#ifdef FULL_TIMEKEEPING
+ size_t i;
+ size_t * size = (size_t *) array;
+ DUMB_IT_ROW_TIME * s = (DUMB_IT_ROW_TIME *)(size + 1);
+
+ for (i = 0; i < *size; i++) {+ if (s[i].times) free(s[i].times);
+ }
+#endif
+
+ free(array);
+}
+
+void * timekeeping_array_dup(void * array)
+{+ size_t i;
+ size_t * size = (size_t *) array;
+ DUMB_IT_ROW_TIME * s = (DUMB_IT_ROW_TIME *)(size + 1);
+ size_t * new_size = (size_t *) calloc( 1, sizeof(size_t) + sizeof(DUMB_IT_ROW_TIME) * *size );
+ if ( new_size ) {+ DUMB_IT_ROW_TIME * new_s = (DUMB_IT_ROW_TIME *)(new_size + 1);
+
+ *new_size = *size;
+
+ for (i = 0; i < *size; i++) {+ new_s[i].count = s[i].count;
+ new_s[i].restart_count = s[i].restart_count;
+
+#ifndef FULL_TIMEKEEPING
+ new_s[i].first_time = s[i].first_time;
+#else
+ if ( s[i].times ) {+ size_t time_count = ( s[i].count + 15 ) & ~15;
+ new_s[i].times = (LONG_LONG *) malloc( sizeof(LONG_LONG) * time_count );
+ if ( new_s[i].times == (void *)0 ) {+ timekeeping_array_destroy( new_size );
+ return (void *) 0;
+ }
+ memcpy( new_s[i].times, s[i].times, sizeof(LONG_LONG) * s[i].count );
+ }
+#endif
+ }
+ }
+
+ return new_size;
+}
+
+void timekeeping_array_reset(void * array, size_t loop_start)
+{+ size_t i;
+ size_t * size = (size_t *) array;
+ DUMB_IT_ROW_TIME * s = (DUMB_IT_ROW_TIME *)(size + 1);
+
+ DUMB_IT_ROW_TIME * s_loop_start = s + loop_start;
+ LONG_LONG loop_start_time;
+
+ if ( loop_start >= *size || s_loop_start->count < 1 ) return;
+
+#ifndef FULL_TIMEKEEPING
+ loop_start_time = s_loop_start->first_time;
+#else
+ loop_start_time = s_loop_start->times[0];
+#endif
+
+ for ( i = 0; i < *size; i++ ) {+#ifndef FULL_TIMEKEEPING
+ if ( s[i].count && s[i].first_time >= loop_start_time ) {+#else
+ if ( s[i].count && s[i].times[0] >= loop_start_time ) {+#endif
+ s[i].restart_count = 0;
+ }
+ }
+}
+
+void timekeeping_array_push(void * array, size_t index, LONG_LONG time)
+{+#ifdef FULL_TIMEKEEPING
+ size_t i;
+ size_t time_count;
+#endif
+ size_t * size = (size_t *) array;
+ DUMB_IT_ROW_TIME * s = (DUMB_IT_ROW_TIME *)(size + 1);
+
+ if (index >= *size) return;
+
+#ifndef FULL_TIMEKEEPING
+ if ( !s[index].count++ )
+ s[index].first_time = time;
+#else
+ time_count = ( s[index].count + 16 ) & ~15;
+
+ s[index].times = (LONG_LONG *) realloc( s[index].times, sizeof(LONG_LONG) * time_count );
+
+ s[index].times[s[index].count++] = time;
+#endif
+}
+
+void timekeeping_array_bump(void * array, size_t index)
+{+ size_t * size = (size_t *) array;
+ DUMB_IT_ROW_TIME * s = (DUMB_IT_ROW_TIME *)(size + 1);
+
+ if (index >= *size) return;
+
+ s[index].restart_count++;
+}
+
+unsigned int timekeeping_array_get_count(void * array, size_t index)
+{+ size_t * size = (size_t *) array;
+ DUMB_IT_ROW_TIME * s = (DUMB_IT_ROW_TIME *)(size + 1);
+
+ if (index >= *size) return 0;
+
+ return s[index].count;
+}
+
+LONG_LONG timekeeping_array_get_item(void * array, size_t index)
+{+ size_t * size = (size_t *) array;
+ DUMB_IT_ROW_TIME * s = (DUMB_IT_ROW_TIME *)(size + 1);
+
+ if (index >= *size || s[index].restart_count >= s[index].count) return 0;
+
+#ifndef FULL_TIMEKEEPING
+ return s[index].first_time;
+#else
+ return s[index].times[s[index].restart_count];
+#endif
+}
--- /dev/null
+++ b/src/it/itload.c
@@ -1,0 +1,43 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * itload.c - Code to read an Impulse Tracker / / \ \
+ * file, opening and closing it for | < / \_
+ * you. | \/ /\ /
+ * \_ / > /
+ * By entheh. Don't worry Bob, you're credited | \ / /
+ * in itread.c! | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_it_quick(): loads an IT file into a DUH struct, returning a
+ * pointer to the DUH struct. When you have finished with it, you must pass
+ * the pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_it_quick(const char *filename)
+{+ DUH *duh;
+ DUMBFILE *f = dumbfile_open(filename);
+
+ if (!f)
+ return NULL;
+
+ duh = dumb_read_it_quick(f);
+
+ dumbfile_close(f);
+
+ return duh;
+}
+
--- /dev/null
+++ b/src/it/itload2.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * itload2.c - Function to read an Impulse Tracker / / \ \
+ * file, opening and closing it for | < / \_
+ * you, and do an initial run-through. | \/ /\ /
+ * \_ / > /
+ * Split off from itload.c by entheh. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+
+
+
+DUH *dumb_load_it(const char *filename)
+{+ DUH *duh = dumb_load_it_quick(filename);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/itmisc.c
@@ -1,0 +1,249 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * itmisc.c - Miscellaneous functions relating / / \ \
+ * to module files. | < / \_
+ * | \/ /\ /
+ * By entheh. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+int dumb_it_default_panning_separation = 25;
+
+
+DUMB_IT_SIGDATA *duh_get_it_sigdata(DUH *duh)
+{+ return duh_get_raw_sigdata(duh, -1, SIGTYPE_IT);
+}
+
+
+
+const unsigned char *dumb_it_sd_get_song_message(DUMB_IT_SIGDATA *sd)
+{+ return sd ? sd->song_message : NULL;
+}
+
+
+
+int dumb_it_sd_get_n_orders(DUMB_IT_SIGDATA *sd)
+{+ return sd ? sd->n_orders : 0;
+}
+
+
+
+int dumb_it_sd_get_n_samples(DUMB_IT_SIGDATA *sd)
+{+ return sd ? sd->n_samples : 0;
+}
+
+
+
+int dumb_it_sd_get_n_instruments(DUMB_IT_SIGDATA *sd)
+{+ return sd ? sd->n_instruments : 0;
+}
+
+
+
+const unsigned char *dumb_it_sd_get_sample_name(DUMB_IT_SIGDATA *sd, int i)
+{+ ASSERT(sd && sd->sample && i >= 0 && i < sd->n_samples);
+ return sd->sample[i].name;
+}
+
+
+
+const unsigned char *dumb_it_sd_get_sample_filename(DUMB_IT_SIGDATA *sd, int i)
+{+ ASSERT(sd && sd->sample && i >= 0 && i < sd->n_samples);
+ return sd->sample[i].filename;
+}
+
+
+
+const unsigned char *dumb_it_sd_get_instrument_name(DUMB_IT_SIGDATA *sd, int i)
+{+ ASSERT(sd && sd->instrument && i >= 0 && i < sd->n_instruments);
+ return sd->instrument[i].name;
+}
+
+
+
+const unsigned char *dumb_it_sd_get_instrument_filename(DUMB_IT_SIGDATA *sd, int i)
+{+ ASSERT(sd && sd->instrument && i >= 0 && i < sd->n_instruments);
+ return sd->instrument[i].filename;
+}
+
+
+
+int dumb_it_sd_get_initial_global_volume(DUMB_IT_SIGDATA *sd)
+{+ return sd ? sd->global_volume : 0;
+}
+
+
+
+void dumb_it_sd_set_initial_global_volume(DUMB_IT_SIGDATA *sd, int gv)
+{+ if (sd) sd->global_volume = gv;
+}
+
+
+
+int dumb_it_sd_get_mixing_volume(DUMB_IT_SIGDATA *sd)
+{+ return sd ? sd->mixing_volume : 0;
+}
+
+
+
+void dumb_it_sd_set_mixing_volume(DUMB_IT_SIGDATA *sd, int mv)
+{+ if (sd) sd->mixing_volume = mv;
+}
+
+
+
+int dumb_it_sd_get_initial_speed(DUMB_IT_SIGDATA *sd)
+{+ return sd ? sd->speed : 0;
+}
+
+
+
+void dumb_it_sd_set_initial_speed(DUMB_IT_SIGDATA *sd, int speed)
+{+ if (sd) sd->speed = speed;
+}
+
+
+
+int dumb_it_sd_get_initial_tempo(DUMB_IT_SIGDATA *sd)
+{+ return sd ? sd->tempo : 0;
+}
+
+
+
+void dumb_it_sd_set_initial_tempo(DUMB_IT_SIGDATA *sd, int tempo)
+{+ if (sd) sd->tempo = tempo;
+}
+
+
+
+int dumb_it_sd_get_initial_channel_volume(DUMB_IT_SIGDATA *sd, int channel)
+{+ ASSERT(channel >= 0 && channel < DUMB_IT_N_CHANNELS);
+ return sd ? sd->channel_volume[channel] : 0;
+}
+
+void dumb_it_sd_set_initial_channel_volume(DUMB_IT_SIGDATA *sd, int channel, int volume)
+{+ ASSERT(channel >= 0 && channel < DUMB_IT_N_CHANNELS);
+ if (sd) sd->channel_volume[channel] = volume;
+}
+
+
+
+int dumb_it_sr_get_current_order(DUMB_IT_SIGRENDERER *sr)
+{+ return sr ? sr->order : -1;
+}
+
+
+
+int dumb_it_sr_get_current_row(DUMB_IT_SIGRENDERER *sr)
+{+ return sr ? sr->row : -1;
+}
+
+
+
+int dumb_it_sr_get_global_volume(DUMB_IT_SIGRENDERER *sr)
+{+ return sr ? sr->globalvolume : 0;
+}
+
+
+
+void dumb_it_sr_set_global_volume(DUMB_IT_SIGRENDERER *sr, int gv)
+{+ if (sr) sr->globalvolume = gv;
+}
+
+
+
+int dumb_it_sr_get_tempo(DUMB_IT_SIGRENDERER *sr)
+{+ return sr ? sr->tempo : 0;
+}
+
+
+
+void dumb_it_sr_set_tempo(DUMB_IT_SIGRENDERER *sr, int tempo)
+{+ if (sr) sr->tempo = tempo;
+}
+
+
+
+int dumb_it_sr_get_speed(DUMB_IT_SIGRENDERER *sr)
+{+ return sr ? sr->speed : 0;
+}
+
+
+
+void dumb_it_sr_set_speed(DUMB_IT_SIGRENDERER *sr, int speed)
+{+ if (sr) sr->speed = speed;
+}
+
+
+
+int dumb_it_sr_get_channel_volume(DUMB_IT_SIGRENDERER *sr, int channel)
+{+ return sr ? sr->channel[channel].channelvolume : 0;
+}
+
+
+
+void dumb_it_sr_set_channel_volume(DUMB_IT_SIGRENDERER *sr, int channel, int volume)
+{+ if (sr) sr->channel[channel].channelvolume = volume;
+}
+
+
+
+void dumb_it_sr_set_channel_muted(DUMB_IT_SIGRENDERER *sr, int channel, int muted)
+{+ if (sr) {+ if (muted)
+ sr->channel[channel].flags |= IT_CHANNEL_MUTED;
+ else
+ sr->channel[channel].flags &= ~IT_CHANNEL_MUTED;
+ }
+}
+
+
+
+int dumb_it_sr_get_channel_muted(DUMB_IT_SIGRENDERER *sr, int channel)
+{+ return sr ? (sr->channel[channel].flags & IT_CHANNEL_MUTED) != 0 : 0;
+}
--- /dev/null
+++ b/src/it/itorder.c
@@ -1,0 +1,63 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * itorder.c - Code to fix invalid patterns in / / \ \
+ * the pattern table. | < / \_
+ * | \/ /\ /
+ * By Julien Cugniere. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+
+
+#include <stdlib.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* This function ensures that any pattern mentioned in the order table but
+ * not present in the pattern table is treated as an empty 64 rows pattern.
+ * This is done by adding such a dummy pattern at the end of the pattern
+ * table, and redirect invalid orders to it.
+ * Patterns 254 and 255 are left untouched, unless the signal is an XM.
+ */
+int _dumb_it_fix_invalid_orders(DUMB_IT_SIGDATA *sigdata)
+{+ int i;
+ int found_some = 0;
+
+ int first_invalid = sigdata->n_patterns;
+ int last_invalid = (sigdata->flags & IT_WAS_AN_XM) ? 255 : 253;
+
+ for (i = 0; i < sigdata->n_orders; i++) {+ if (sigdata->order[i] >= first_invalid && sigdata->order[i] <= last_invalid) {+ sigdata->order[i] = sigdata->n_patterns;
+ found_some = 1;
+ }
+ }
+
+ if (found_some) {+ IT_PATTERN *new_pattern = realloc(sigdata->pattern, sizeof(*sigdata->pattern) * (sigdata->n_patterns + 1));
+ if (!new_pattern)
+ return -1;
+
+ new_pattern[sigdata->n_patterns].n_rows = 64;
+ new_pattern[sigdata->n_patterns].n_entries = 0;
+ new_pattern[sigdata->n_patterns].entry = NULL;
+ sigdata->pattern = new_pattern;
+ sigdata->n_patterns++;
+ }
+
+ return 0;
+}
--- /dev/null
+++ b/src/it/itread.c
@@ -1,0 +1,1416 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * itread.c - Code to read an Impulse Tracker / / \ \
+ * module from an open file. | < / \_
+ * | \/ /\ /
+ * Based on the loader from an IT player by Bob. \_ / > /
+ * Adapted for DUMB by entheh. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include <string.h>//might not be necessary later; required for memset
+
+#include "dumb.h"
+#include "internal/it.h"
+
+#ifndef min
+#define min(a, b) (((a) < (b)) ? (a) : (b))
+#endif
+
+
+#define INVESTIGATE_OLD_INSTRUMENTS
+
+
+
+typedef unsigned char byte;
+typedef unsigned short word;
+typedef unsigned long dword;
+
+typedef struct readblock_crap readblock_crap;
+
+struct readblock_crap {+ unsigned char *sourcebuf;
+ unsigned char *sourcepos;
+ unsigned char *sourceend;
+ int rembits;
+};
+
+
+static int readblock(DUMBFILE *f, readblock_crap * crap)
+{+ long size;
+ int c;
+
+ size = dumbfile_igetw(f);
+ if (size < 0)
+ return (int)size;
+
+ crap->sourcebuf = malloc(size);
+ if (!crap->sourcebuf)
+ return -1;
+
+ c = (int)dumbfile_getnc((char *)crap->sourcebuf, size, f);
+ if (c < size) {+ free(crap->sourcebuf);
+ crap->sourcebuf = NULL;
+ return -1;
+ }
+
+ crap->sourcepos = crap->sourcebuf;
+ crap->sourceend = crap->sourcebuf + size;
+ crap->rembits = 8;
+ return 0;
+}
+
+
+
+static void freeblock(readblock_crap * crap)
+{+ free(crap->sourcebuf);
+ crap->sourcebuf = NULL;
+}
+
+
+
+static int readbits(int bitwidth, readblock_crap * crap)
+{+ int val = 0;
+ int b = 0;
+
+ if (crap->sourcepos >= crap->sourceend) return val;
+
+ while (bitwidth > crap->rembits) {+ val |= *crap->sourcepos++ << b;
+ if (crap->sourcepos >= crap->sourceend) return val;
+ b += crap->rembits;
+ bitwidth -= crap->rembits;
+ crap->rembits = 8;
+ }
+
+ val |= (*crap->sourcepos & ((1 << bitwidth) - 1)) << b;
+ *crap->sourcepos >>= bitwidth;
+ crap->rembits -= bitwidth;
+
+ return val;
+}
+
+
+
+/** WARNING - do we even need to pass `right`? */
+/** WARNING - why bother memsetting at all? The whole array is written... */
+// if we do memset, dumb_silence() would be neater...
+static int decompress8(DUMBFILE *f, signed char *data, int len, int it215, int stereo)
+{+ int blocklen, blockpos;
+ byte bitwidth;
+ word val;
+ signed char d1, d2;
+ readblock_crap crap;
+
+ memset(&crap, 0, sizeof(crap));
+
+ for (blocklen = 0, blockpos = 0; blocklen < len; blocklen++, blockpos += 1 + stereo)
+ data[ blockpos ] = 0;
+
+ while (len > 0) {+ //Read a block of compressed data:
+ if (readblock(f, &crap))
+ return -1;
+ //Set up a few variables
+ blocklen = (len < 0x8000) ? len : 0x8000; //Max block length is 0x8000 bytes
+ blockpos = 0;
+ bitwidth = 9;
+ d1 = d2 = 0;
+ //Start the decompression:
+ while (blockpos < blocklen) {+ //Read a value:
+ val = (word)readbits(bitwidth, &crap);
+ //Check for bit width change:
+
+ if (bitwidth < 7) { //Method 1:+ if (val == (1 << (bitwidth - 1))) {+ val = (word)readbits(3, &crap) + 1;
+ bitwidth = (val < bitwidth) ? val : val + 1;
+ continue;
+ }
+ }
+ else if (bitwidth < 9) { //Method 2+ byte border = (0xFF >> (9 - bitwidth)) - 4;
+
+ if (val > border && val <= (border + 8)) {+ val -= border;
+ bitwidth = (val < bitwidth) ? val : val + 1;
+ continue;
+ }
+ }
+ else if (bitwidth == 9) { //Method 3+ if (val & 0x100) {+ bitwidth = (val + 1) & 0xFF;
+ continue;
+ }
+ }
+ else { //Illegal width, abort ?+ freeblock(&crap);
+ return -1;
+ }
+
+ //Expand the value to signed byte:
+ {+ signed char v; //The sample value:
+ if (bitwidth < 8) {+ byte shift = 8 - bitwidth;
+ v = (val << shift);
+ v >>= shift;
+ }
+ else
+ v = (signed char)val;
+
+ //And integrate the sample value
+ //(It always has to end with integration doesn't it ? ;-)
+ d1 += v;
+ d2 += d1;
+ }
+
+ //Store !
+ /* Version 2.15 was an unofficial version with hacked compression
+ * code. Yay, better compression :D
+ */
+ *data++ = it215 ? d2 : d1;
+ data += stereo;
+ len--;
+ blockpos++;
+ }
+ freeblock(&crap);
+ }
+ return 0;
+}
+
+
+
+static int decompress16(DUMBFILE *f, short *data, int len, int it215, int stereo)
+{+ int blocklen, blockpos;
+ byte bitwidth;
+ long val;
+ signed short d1, d2;
+ readblock_crap crap;
+
+ memset(&crap, 0, sizeof(crap));
+
+ for ( blocklen = 0, blockpos = 0; blocklen < len; blocklen++, blockpos += 1 + stereo )
+ data[ blockpos ] = 0;
+
+ while (len > 0) {+ //Read a block of compressed data:
+ if (readblock(f, &crap))
+ return -1;
+ //Set up a few variables
+ blocklen = (len < 0x4000) ? len : 0x4000; // Max block length is 0x4000 bytes
+ blockpos = 0;
+ bitwidth = 17;
+ d1 = d2 = 0;
+ //Start the decompression:
+ while (blockpos < blocklen) {+ val = readbits(bitwidth, &crap);
+ //Check for bit width change:
+
+ if (bitwidth < 7) { //Method 1:+ if (val == (1 << (bitwidth - 1))) {+ val = readbits(4, &crap) + 1;
+ bitwidth = (val < bitwidth) ? val : val + 1;
+ continue;
+ }
+ }
+ else if (bitwidth < 17) { //Method 2+ word border = (0xFFFF >> (17 - bitwidth)) - 8;
+
+ if (val > border && val <= (border + 16)) {+ val -= border;
+ bitwidth = val < bitwidth ? val : val + 1;
+ continue;
+ }
+ }
+ else if (bitwidth == 17) { //Method 3+ if (val & 0x10000) {+ bitwidth = (val + 1) & 0xFF;
+ continue;
+ }
+ }
+ else { //Illegal width, abort ?+ freeblock(&crap);
+ return -1;
+ }
+
+ //Expand the value to signed byte:
+ {+ short v; //The sample value:
+ if (bitwidth < 16) {+ byte shift = 16 - bitwidth;
+ v = (short)(val << shift);
+ v >>= shift;
+ }
+ else
+ v = (short)val;
+
+ //And integrate the sample value
+ //(It always has to end with integration doesn't it ? ;-)
+ d1 += v;
+ d2 += d1;
+ }
+
+ //Store !
+ /* Version 2.15 was an unofficial version with hacked compression
+ * code. Yay, better compression :D
+ */
+ *data++ = it215 ? d2 : d1;
+ data += stereo;
+ len--;
+ blockpos++;
+ }
+ freeblock(&crap);
+ }
+ return 0;
+}
+
+
+
+static int it_read_envelope(IT_ENVELOPE *envelope, DUMBFILE *f)
+{+ int n;
+
+ envelope->flags = dumbfile_getc(f);
+ envelope->n_nodes = dumbfile_getc(f);
+ if(envelope->n_nodes > 25) {+ TRACE("IT error: wrong number of envelope nodes (%d)\n", envelope->n_nodes);+ envelope->n_nodes = 0;
+ return -1;
+ }
+ envelope->loop_start = dumbfile_getc(f);
+ envelope->loop_end = dumbfile_getc(f);
+ envelope->sus_loop_start = dumbfile_getc(f);
+ envelope->sus_loop_end = dumbfile_getc(f);
+ for (n = 0; n < envelope->n_nodes; n++) {+ envelope->node_y[n] = dumbfile_getc(f);
+ envelope->node_t[n] = dumbfile_igetw(f);
+ }
+ dumbfile_skip(f, 75 - envelope->n_nodes * 3 + 1);
+
+ if (envelope->n_nodes <= 0)
+ envelope->flags &= ~IT_ENVELOPE_ON;
+ else {+ if (envelope->loop_end >= envelope->n_nodes || envelope->loop_start > envelope->loop_end) envelope->flags &= ~IT_ENVELOPE_LOOP_ON;
+ if (envelope->sus_loop_end >= envelope->n_nodes || envelope->sus_loop_start > envelope->sus_loop_end) envelope->flags &= ~IT_ENVELOPE_SUSTAIN_LOOP;
+ }
+
+ return dumbfile_error(f);
+}
+
+
+
+static int it_read_old_instrument(IT_INSTRUMENT *instrument, DUMBFILE *f)
+{+ int n;
+
+ /*if (dumbfile_mgetl(f) != IT_INSTRUMENT_SIGNATURE)
+ return -1;*/
+ // XXX
+ dumbfile_skip(f, 4);
+
+ dumbfile_getnc((char *)instrument->filename, 13, f);
+ instrument->filename[13] = 0;
+
+ instrument->volume_envelope.flags = dumbfile_getc(f);
+ instrument->volume_envelope.loop_start = dumbfile_getc(f);
+ instrument->volume_envelope.loop_end = dumbfile_getc(f);
+ instrument->volume_envelope.sus_loop_start = dumbfile_getc(f);
+ instrument->volume_envelope.sus_loop_end = dumbfile_getc(f);
+
+ /* Skip two unused bytes. */
+ dumbfile_skip(f, 2);
+
+ /* In the old instrument format, fadeout ranges from 0 to 64, and is
+ * subtracted at intervals from a value starting at 512. In the new
+ * format, all these values are doubled. Therefore we double when loading
+ * from the old instrument format - that way we don't have to think about
+ * it later.
+ */
+ instrument->fadeout = dumbfile_igetw(f) << 1;
+ instrument->new_note_action = dumbfile_getc(f);
+ instrument->dup_check_type = dumbfile_getc(f);
+ instrument->dup_check_action = DCA_NOTE_CUT; // This might be wrong!
+ /** WARNING - what is the duplicate check action for old-style instruments? */
+
+ /* Skip Tracker Version and Number of Samples. These are only used in
+ * separate instrument files. Also skip unused byte.
+ */
+ dumbfile_skip(f, 4);
+
+ dumbfile_getnc((char *)instrument->name, 26, f);
+ instrument->name[26] = 0;
+
+ /* Skip unused bytes following the Instrument Name. */
+ dumbfile_skip(f, 6);
+
+ instrument->pp_separation = 0;
+ instrument->pp_centre = 60;
+ instrument->global_volume = 128;
+ /** WARNING - should global_volume be 64 or something? */
+ instrument->default_pan = 32;
+ /** WARNING - should default_pan be 128, meaning don`t use? */
+ instrument->random_volume = 0;
+ instrument->random_pan = 0;
+
+ for (n = 0; n < 120; n++) {+ instrument->map_note[n] = dumbfile_getc(f);
+ instrument->map_sample[n] = dumbfile_getc(f);
+ }
+
+ /* Skip "Volume envelope (200 bytes)". */
+ // - need to know better what this is for though.
+ dumbfile_skip(f, 200);
+
+#ifdef INVESTIGATE_OLD_INSTRUMENTS
+ fprintf(stderr, "Inst %02d Env:", n);
+#endif
+
+ for (n = 0; n < 25; n++)
+ {+ instrument->volume_envelope.node_t[n] = dumbfile_getc(f);
+ instrument->volume_envelope.node_y[n] = dumbfile_getc(f);
+
+#ifdef INVESTIGATE_OLD_INSTRUMENTS
+ fprintf(stderr, " %d,%d",
+ instrument->volume_envelope.node_t[n],
+ instrument->volume_envelope.node_y[n]);
+#endif
+
+ // This loop is unfinished, as we can probably escape from it before
+ // the end if we want to. Hence the otherwise useless dumbfile_skip()
+ // call below.
+ }
+ dumbfile_skip(f, 50 - (n << 1));
+ instrument->volume_envelope.n_nodes = n;
+
+#ifdef INVESTIGATE_OLD_INSTRUMENTS
+ fprintf(stderr, "\n");
+#endif
+
+ if (dumbfile_error(f))
+ return -1;
+
+ {+ IT_ENVELOPE *envelope = &instrument->volume_envelope;
+ if (envelope->n_nodes <= 0)
+ envelope->flags &= ~IT_ENVELOPE_ON;
+ else {+ if (envelope->loop_end >= envelope->n_nodes || envelope->loop_start > envelope->loop_end) envelope->flags &= ~IT_ENVELOPE_LOOP_ON;
+ if (envelope->sus_loop_end >= envelope->n_nodes || envelope->sus_loop_start > envelope->sus_loop_end) envelope->flags &= ~IT_ENVELOPE_SUSTAIN_LOOP;
+ }
+ }
+
+ instrument->filter_cutoff = 127;
+ instrument->filter_resonance = 0;
+
+ instrument->pan_envelope.flags = 0;
+ instrument->pitch_envelope.flags = 0;
+
+ return 0;
+}
+
+
+
+static int it_read_instrument(IT_INSTRUMENT *instrument, DUMBFILE *f, int maxlen)
+{+ int n;
+ long len;
+
+ /*if (dumbfile_mgetl(f) != IT_INSTRUMENT_SIGNATURE)
+ return -1;*/
+ // XXX
+
+ if (maxlen) len = dumbfile_pos(f);
+ else len = 0;
+
+ dumbfile_skip(f, 4);
+
+ dumbfile_getnc((char *)instrument->filename, 13, f);
+ instrument->filename[13] = 0;
+
+ instrument->new_note_action = dumbfile_getc(f);
+ instrument->dup_check_type = dumbfile_getc(f);
+ instrument->dup_check_action = dumbfile_getc(f);
+ instrument->fadeout = dumbfile_igetw(f);
+ instrument->pp_separation = dumbfile_getc(f);
+ instrument->pp_centre = dumbfile_getc(f);
+ instrument->global_volume = dumbfile_getc(f);
+ instrument->default_pan = dumbfile_getc(f);
+ instrument->random_volume = dumbfile_getc(f);
+ instrument->random_pan = dumbfile_getc(f);
+
+ /* Skip Tracker Version and Number of Samples. These are only used in
+ * separate instrument files. Also skip unused byte.
+ */
+ dumbfile_skip(f, 4);
+
+ dumbfile_getnc((char *)instrument->name, 26, f);
+ instrument->name[26] = 0;
+
+ instrument->filter_cutoff = dumbfile_getc(f);
+ instrument->filter_resonance = dumbfile_getc(f);
+
+ /* Skip MIDI Channel, Program and Bank. */
+ //dumbfile_skip(f, 4);
+ /*instrument->output = dumbfile_getc(f);
+ if ( instrument->output > 16 ) {+ instrument->output -= 128;
+ } else {+ instrument->output = 0;
+ }
+ dumbfile_skip(f, 3);*/
+ dumbfile_skip(f, 4);
+
+ for (n = 0; n < 120; n++) {+ instrument->map_note[n] = dumbfile_getc(f);
+ instrument->map_sample[n] = dumbfile_getc(f);
+ }
+
+ if (dumbfile_error(f))
+ return -1;
+
+ if (it_read_envelope(&instrument->volume_envelope, f)) return -1;
+ if (it_read_envelope(&instrument->pan_envelope, f)) return -1;
+ if (it_read_envelope(&instrument->pitch_envelope, f)) return -1;
+
+ if (maxlen) {+ len = dumbfile_pos(f) - len;
+ if ( maxlen - len < 124 ) return 0;
+ }
+
+ if ( dumbfile_mgetl(f) == IT_MPTX_SIGNATURE ) {+ for ( n = 0; n < 120; n++ ) {+ instrument->map_sample[ n ] += dumbfile_getc( f ) << 8;
+ }
+
+ if (dumbfile_error(f))
+ return -1;
+ }
+
+ /*if ( dumbfile_mgetl(f) == IT_INSM_SIGNATURE ) {+ long end = dumbfile_igetl(f);
+ end += dumbfile_pos(f);
+ while ( dumbfile_pos(f) < end ) {+ int chunkid = dumbfile_igetl(f);
+ switch ( chunkid ) {+ case DUMB_ID('P','L','U','G'):+ instrument->output = dumbfile_getc(f);
+ break;
+ default:
+ chunkid = chunkid / 0x100 + dumbfile_getc(f) * 0x1000000;
+ break;
+ }
+ }
+
+ if (dumbfile_error(f))
+ return -1;
+ }*/
+
+ return 0;
+}
+
+
+
+static int it_read_sample_header(IT_SAMPLE *sample, unsigned char *convert, long *offset, DUMBFILE *f)
+{+ /* XXX
+ if (dumbfile_mgetl(f) != IT_SAMPLE_SIGNATURE)
+ return -1;*/
+ int hax = 0;
+ long s = dumbfile_mgetl(f);
+ if (s != IT_SAMPLE_SIGNATURE) {+ if ( s == ( IT_SAMPLE_SIGNATURE >> 16 ) ) {+ s <<= 16;
+ s |= dumbfile_mgetw(f);
+ if ( s != IT_SAMPLE_SIGNATURE )
+ return -1;
+ hax = 1;
+ }
+ }
+
+ dumbfile_getnc((char *)sample->filename, 13, f);
+ sample->filename[13] = 0;
+
+ sample->global_volume = dumbfile_getc(f);
+ sample->flags = dumbfile_getc(f);
+ sample->default_volume = dumbfile_getc(f);
+
+ dumbfile_getnc((char *)sample->name, 26, f);
+ sample->name[26] = 0;
+
+ *convert = dumbfile_getc(f);
+ sample->default_pan = dumbfile_getc(f);
+ sample->length = dumbfile_igetl(f);
+ sample->loop_start = dumbfile_igetl(f);
+ sample->loop_end = dumbfile_igetl(f);
+ sample->C5_speed = dumbfile_igetl(f);
+ sample->sus_loop_start = dumbfile_igetl(f);
+ sample->sus_loop_end = dumbfile_igetl(f);
+
+#ifdef STEREO_SAMPLES_COUNT_AS_TWO
+ if (sample->flags & IT_SAMPLE_STEREO) {+ sample->length >>= 1;
+ sample->loop_start >>= 1;
+ sample->loop_end >>= 1;
+ sample->C5_speed >>= 1;
+ sample->sus_loop_start >>= 1;
+ sample->sus_loop_end >>= 1;
+ }
+#endif
+
+ if (sample->flags & IT_SAMPLE_EXISTS) {+ if (sample->length <= 0)
+ sample->flags &= ~IT_SAMPLE_EXISTS;
+ else {+ if ((unsigned int)sample->loop_end > (unsigned int)sample->length)
+ sample->flags &= ~IT_SAMPLE_LOOP;
+ else if ((unsigned int)sample->loop_start >= (unsigned int)sample->loop_end)
+ sample->flags &= ~IT_SAMPLE_LOOP;
+
+ if ((unsigned int)sample->sus_loop_end > (unsigned int)sample->length)
+ sample->flags &= ~IT_SAMPLE_SUS_LOOP;
+ else if ((unsigned int)sample->sus_loop_start >= (unsigned int)sample->sus_loop_end)
+ sample->flags &= ~IT_SAMPLE_SUS_LOOP;
+
+ /* We may be able to truncate the sample to save memory. */
+ if (sample->flags & IT_SAMPLE_LOOP &&
+ *convert != 0xFF) { /* not truncating compressed samples, for now... */+ if ((sample->flags & IT_SAMPLE_SUS_LOOP) && sample->sus_loop_end >= sample->loop_end)
+ sample->length = sample->sus_loop_end;
+ else
+ sample->length = sample->loop_end;
+ }
+ }
+ }
+
+ *offset = dumbfile_igetl(f);
+
+ sample->vibrato_speed = dumbfile_getc(f);
+ sample->vibrato_depth = dumbfile_getc(f);
+ if ( ! hax ) {+ sample->vibrato_rate = dumbfile_getc(f);
+ sample->vibrato_waveform = dumbfile_getc(f);
+ } else {+ sample->vibrato_rate = 0;
+ sample->vibrato_waveform = 0;
+ }
+ sample->finetune = 0;
+ sample->max_resampling_quality = -1;
+
+ return dumbfile_error(f);
+}
+
+long _dumb_it_read_sample_data_adpcm4(IT_SAMPLE *sample, DUMBFILE *f)
+{+ long n, len, delta;
+ signed char * ptr, * end;
+ signed char compression_table[16];
+ if (dumbfile_getnc((char *)compression_table, 16, f) != 16)
+ return -1;
+ ptr = (signed char *) sample->data;
+ delta = 0;
+
+ end = ptr + sample->length;
+ len = (sample->length + 1) / 2;
+ for (n = 0; n < len; n++) {+ int b = dumbfile_getc(f);
+ if (b < 0) return -1;
+ delta += compression_table[b & 0x0F];
+ *ptr++ = delta;
+ if (ptr >= end) break;
+ delta += compression_table[b >> 4];
+ *ptr++ = delta;
+ }
+
+ return 0;
+}
+
+
+static long it_read_sample_data(IT_SAMPLE *sample, unsigned char convert, DUMBFILE *f)
+{+ long n;
+
+ long datasize = sample->length;
+ if (sample->flags & IT_SAMPLE_STEREO) datasize <<= 1;
+
+ sample->data = malloc(datasize * (sample->flags & IT_SAMPLE_16BIT ? 2 : 1));
+ if (!sample->data)
+ return -1;
+
+ if (!(sample->flags & IT_SAMPLE_16BIT) && (convert == 0xFF)) {+ if (_dumb_it_read_sample_data_adpcm4(sample, f) < 0)
+ return -1;
+ } else if (sample->flags & 8) {+ /* If the sample is packed, then we must unpack it. */
+
+ /* Behavior as defined by greasemonkey's munch.py and observed by XMPlay and OpenMPT */
+
+ if (sample->flags & IT_SAMPLE_STEREO) {+ if (sample->flags & IT_SAMPLE_16BIT) {+ decompress16(f, (short *) sample->data, (int)(datasize >> 1), convert & 4, 1);
+ decompress16(f, (short *) sample->data + 1, (int)(datasize >> 1), convert & 4, 1);
+ } else {+ decompress8(f, (signed char *) sample->data, (int)(datasize >> 1), convert & 4, 1);
+ decompress8(f, (signed char *) sample->data + 1, (int)(datasize >> 1), convert & 4, 1);
+ }
+ } else {+ if (sample->flags & IT_SAMPLE_16BIT)
+ decompress16(f, (short *) sample->data, (int)datasize, convert & 4, 0);
+ else
+ decompress8(f, (signed char *) sample->data, (int)datasize, convert & 4, 0);
+ }
+ } else if (sample->flags & IT_SAMPLE_16BIT) {+ if (sample->flags & IT_SAMPLE_STEREO) {+ if (convert & 2) {+ for (n = 0; n < datasize; n += 2)
+ ((short *)sample->data)[n] = dumbfile_mgetw(f);
+ for (n = 1; n < datasize; n += 2)
+ ((short *)sample->data)[n] = dumbfile_mgetw(f);
+ } else {+ for (n = 0; n < datasize; n += 2)
+ ((short *)sample->data)[n] = dumbfile_igetw(f);
+ for (n = 1; n < datasize; n += 2)
+ ((short *)sample->data)[n] = dumbfile_igetw(f);
+ }
+ } else {+ if (convert & 2)
+ for (n = 0; n < datasize; n++)
+ ((short *)sample->data)[n] = dumbfile_mgetw(f);
+ else
+ for (n = 0; n < datasize; n++)
+ ((short *)sample->data)[n] = dumbfile_igetw(f);
+ }
+ } else {+ if (sample->flags & IT_SAMPLE_STEREO) {+ for (n = 0; n < datasize; n += 2)
+ ((signed char *)sample->data)[n] = dumbfile_getc(f);
+ for (n = 1; n < datasize; n += 2)
+ ((signed char *)sample->data)[n] = dumbfile_getc(f);
+ } else
+ for (n = 0; n < datasize; n++)
+ ((signed char *)sample->data)[n] = dumbfile_getc(f);
+ }
+
+ if (dumbfile_error(f))
+ return -1;
+
+ if (!(convert & 1)) {+ /* Convert to signed. */
+ if (sample->flags & IT_SAMPLE_16BIT)
+ for (n = 0; n < datasize; n++)
+ ((short *)sample->data)[n] ^= 0x8000;
+ else
+ for (n = 0; n < datasize; n++)
+ ((signed char *)sample->data)[n] ^= 0x80;
+ }
+
+ /* NOT SUPPORTED:
+ *
+ * convert & 4 - Samples stored as delta values
+ * convert & 16 - Samples stored as TX-Wave 12-bit values
+ * convert & 32 - Left/Right/All Stereo prompt
+ */
+
+ return 0;
+}
+
+
+
+//#define DETECT_DUPLICATE_CHANNELS
+#ifdef DETECT_DUPLICATE_CHANNELS
+#include <stdio.h>
+#endif
+static int it_read_pattern(IT_PATTERN *pattern, DUMBFILE *f, unsigned char *buffer)
+{+ unsigned char cmask[DUMB_IT_N_CHANNELS];
+ unsigned char cnote[DUMB_IT_N_CHANNELS];
+ unsigned char cinstrument[DUMB_IT_N_CHANNELS];
+ unsigned char cvolpan[DUMB_IT_N_CHANNELS];
+ unsigned char ceffect[DUMB_IT_N_CHANNELS];
+ unsigned char ceffectvalue[DUMB_IT_N_CHANNELS];
+#ifdef DETECT_DUPLICATE_CHANNELS
+ IT_ENTRY *dupentry[DUMB_IT_N_CHANNELS];
+#endif
+
+ int n_entries = 0;
+ int buflen;
+ int bufpos = 0;
+
+ IT_ENTRY *entry;
+
+ unsigned char channel;
+ unsigned char mask;
+
+ memset(cmask, 0, sizeof(cmask));
+ memset(cnote, 0, sizeof(cnote));
+ memset(cinstrument, 0, sizeof(cinstrument));
+ memset(cvolpan, 0, sizeof(cvolpan));
+ memset(ceffect, 0, sizeof(ceffect));
+ memset(ceffectvalue, 0, sizeof(ceffectvalue));
+#ifdef DETECT_DUPLICATE_CHANNELS
+ {+ int i;
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++) dupentry[i] = NULL;
+ }
+#endif
+
+ buflen = dumbfile_igetw(f);
+ pattern->n_rows = dumbfile_igetw(f);
+
+ /* Skip four unused bytes. */
+ dumbfile_skip(f, 4);
+
+ if (dumbfile_error(f))
+ return -1;
+
+ /* Read in the pattern data. */
+ dumbfile_getnc((char *)buffer, buflen, f);
+
+ if (dumbfile_error(f))
+ return -1;
+
+ /* Scan the pattern data, and work out how many entries we need room for. */
+ while (bufpos < buflen) {+ unsigned char b = buffer[bufpos++];
+
+ if (b == 0) {+ /* End of row */
+ n_entries++;
+ continue;
+ }
+
+ channel = (b - 1) & 63;
+
+ if (b & 128)
+ cmask[channel] = mask = buffer[bufpos++];
+ else
+ mask = cmask[channel];
+
+ {+ static const unsigned char used[16] = {0, 1, 1, 2, 1, 2, 2, 3, 2, 3, 3, 4, 3, 4, 4, 5};+ n_entries += (mask != 0);
+ bufpos += used[mask & 15];
+ }
+ }
+
+ pattern->n_entries = n_entries;
+
+ pattern->entry = malloc(n_entries * sizeof(*pattern->entry));
+
+ if (!pattern->entry)
+ return -1;
+
+ bufpos = 0;
+ memset(cmask, 0, sizeof(cmask));
+
+ entry = pattern->entry;
+
+ while (bufpos < buflen) {+ unsigned char b = buffer[bufpos++];
+
+ if (b == 0) {+ /* End of row */
+ IT_SET_END_ROW(entry);
+ entry++;
+#ifdef DETECT_DUPLICATE_CHANNELS
+ {+ int i;
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++) dupentry[i] = NULL;
+ }
+#endif
+ continue;
+ }
+
+ channel = (b - 1) & 63;
+
+ if (b & 128)
+ cmask[channel] = mask = buffer[bufpos++];
+ else
+ mask = cmask[channel];
+
+ if (mask) {+ entry->mask = (mask & 15) | (mask >> 4);
+ entry->channel = channel;
+
+ if (mask & IT_ENTRY_NOTE)
+ cnote[channel] = entry->note = buffer[bufpos++];
+ else if (mask & (IT_ENTRY_NOTE << 4))
+ entry->note = cnote[channel];
+
+ if (mask & IT_ENTRY_INSTRUMENT)
+ cinstrument[channel] = entry->instrument = buffer[bufpos++];
+ else if (mask & (IT_ENTRY_INSTRUMENT << 4))
+ entry->instrument = cinstrument[channel];
+
+ if (mask & IT_ENTRY_VOLPAN)
+ cvolpan[channel] = entry->volpan = buffer[bufpos++];
+ else if (mask & (IT_ENTRY_VOLPAN << 4))
+ entry->volpan = cvolpan[channel];
+
+ if (mask & IT_ENTRY_EFFECT) {+ ceffect[channel] = entry->effect = buffer[bufpos++];
+ ceffectvalue[channel] = entry->effectvalue = buffer[bufpos++];
+ } else {+ entry->effect = ceffect[channel];
+ entry->effectvalue = ceffectvalue[channel];
+ }
+
+#ifdef DETECT_DUPLICATE_CHANNELS
+ if (dupentry[channel]) {+ FILE *f = fopen("dupentry.txt", "a");+ if (!f) abort();
+ fprintf(f, "Two events on channel %d:", channel);
+ fprintf(f, " Event #1:");
+ if (dupentry[channel]->mask & IT_ENTRY_NOTE ) fprintf(f, " %03d", dupentry[channel]->note ); else fprintf(f, " ...");
+ if (dupentry[channel]->mask & IT_ENTRY_INSTRUMENT) fprintf(f, " %03d", dupentry[channel]->instrument); else fprintf(f, " ...");
+ if (dupentry[channel]->mask & IT_ENTRY_VOLPAN ) fprintf(f, " %03d", dupentry[channel]->volpan ); else fprintf(f, " ...");
+ if (dupentry[channel]->mask & IT_ENTRY_EFFECT) fprintf(f, " %c%02X\n", 'A' - 1 + dupentry[channel]->effect, dupentry[channel]->effectvalue); else fprintf(f, " ...\n");
+ fprintf(f, " Event #2:");
+ if (entry->mask & IT_ENTRY_NOTE ) fprintf(f, " %03d", entry->note ); else fprintf(f, " ...");
+ if (entry->mask & IT_ENTRY_INSTRUMENT) fprintf(f, " %03d", entry->instrument); else fprintf(f, " ...");
+ if (entry->mask & IT_ENTRY_VOLPAN ) fprintf(f, " %03d", entry->volpan ); else fprintf(f, " ...");
+ if (entry->mask & IT_ENTRY_EFFECT) fprintf(f, " %c%02X\n", 'A' - 1 + entry->effect, entry->effectvalue); else fprintf(f, " ...\n");
+ fclose(f);
+ }
+ dupentry[channel] = entry;
+#endif
+
+ entry++;
+ }
+ }
+
+ ASSERT(entry == pattern->entry + n_entries);
+
+ return 0;
+}
+
+
+
+/* Currently we assume the sample data are stored after the sample headers in
+ * module files. This assumption may be unjustified; let me know if you have
+ * trouble.
+ */
+
+#define IT_COMPONENT_SONG_MESSAGE 1
+#define IT_COMPONENT_INSTRUMENT 2
+#define IT_COMPONENT_PATTERN 3
+#define IT_COMPONENT_SAMPLE 4
+
+typedef struct IT_COMPONENT
+{+ unsigned char type;
+ unsigned short n;
+ long offset;
+ short sampfirst; /* component[sampfirst] = first sample data after this */
+ short sampnext; /* sampnext is used to create linked lists of sample data */
+}
+IT_COMPONENT;
+
+
+
+static int it_component_compare(const void *e1, const void *e2)
+{+ return (int)(((const IT_COMPONENT *)e1)->offset -
+ ((const IT_COMPONENT *)e2)->offset);
+}
+
+
+
+static sigdata_t *it_load_sigdata(DUMBFILE *f)
+{+ DUMB_IT_SIGDATA *sigdata;
+
+ int cwt, cmwt;
+ int special;
+ int message_length, message_offset;
+
+ IT_COMPONENT *component;
+ int n_components = 0;
+
+ unsigned char sample_convert[4096];
+
+ int n;
+
+ unsigned char *buffer;
+
+ if (dumbfile_mgetl(f) != IT_SIGNATURE)
+ {+ return NULL;
+ }
+
+ sigdata = malloc(sizeof(*sigdata));
+
+ if (!sigdata)
+ {+ return NULL;
+ }
+
+ sigdata->song_message = NULL;
+ sigdata->order = NULL;
+ sigdata->instrument = NULL;
+ sigdata->sample = NULL;
+ sigdata->pattern = NULL;
+ sigdata->midi = NULL;
+ sigdata->checkpoint = NULL;
+
+ dumbfile_getnc((char *)sigdata->name, 26, f);
+ sigdata->name[26] = 0;
+
+ /* Skip pattern row highlight info. */
+ dumbfile_skip(f, 2);
+
+ sigdata->n_orders = dumbfile_igetw(f);
+ sigdata->n_instruments = dumbfile_igetw(f);
+ sigdata->n_samples = dumbfile_igetw(f);
+ sigdata->n_patterns = dumbfile_igetw(f);
+
+ cwt = dumbfile_igetw(f);
+ cmwt = dumbfile_igetw(f);
+
+ sigdata->flags = dumbfile_igetw(f);
+ special = dumbfile_igetw(f);
+
+ sigdata->global_volume = dumbfile_getc(f);
+ sigdata->mixing_volume = dumbfile_getc(f);
+ sigdata->speed = dumbfile_getc(f);
+ if (sigdata->speed == 0) sigdata->speed = 6; // Should we? What about tempo?
+ sigdata->tempo = dumbfile_getc(f);
+ sigdata->pan_separation = dumbfile_getc(f); /** WARNING: use this */
+
+ /* Skip Pitch Wheel Depth */
+ dumbfile_skip(f, 1);
+
+ message_length = dumbfile_igetw(f);
+ message_offset = (int)dumbfile_igetl(f);
+
+ /* Skip Reserved. */
+ dumbfile_skip(f, 4);
+
+ dumbfile_getnc((char *)sigdata->channel_pan, DUMB_IT_N_CHANNELS, f);
+ dumbfile_getnc((char *)sigdata->channel_volume, DUMB_IT_N_CHANNELS, f);
+
+ // XXX sample count
+ if (dumbfile_error(f) || sigdata->n_orders <= 0 || sigdata->n_instruments > 256 || sigdata->n_samples > 4000 || sigdata->n_patterns > 256) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ sigdata->order = malloc(sigdata->n_orders);
+ if (!sigdata->order) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ if (sigdata->n_instruments) {+ sigdata->instrument = malloc(sigdata->n_instruments * sizeof(*sigdata->instrument));
+ if (!sigdata->instrument) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ }
+
+ if (sigdata->n_samples) {+ sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
+ if (!sigdata->sample) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (n = 0; n < sigdata->n_samples; n++)
+ sigdata->sample[n].data = NULL;
+ }
+
+ if (sigdata->n_patterns) {+ sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
+ if (!sigdata->pattern) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (n = 0; n < sigdata->n_patterns; n++)
+ sigdata->pattern[n].entry = NULL;
+ }
+
+ dumbfile_getnc((char *)sigdata->order, sigdata->n_orders, f);
+ sigdata->restart_position = 0;
+
+ component = malloc(769 * sizeof(*component));
+ if (!component) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ if (special & 1) {+ component[n_components].type = IT_COMPONENT_SONG_MESSAGE;
+ component[n_components].offset = message_offset;
+ component[n_components].sampfirst = -1;
+ n_components++;
+ }
+
+ for (n = 0; n < sigdata->n_instruments; n++) {+ component[n_components].type = IT_COMPONENT_INSTRUMENT;
+ component[n_components].n = n;
+ component[n_components].offset = dumbfile_igetl(f);
+ component[n_components].sampfirst = -1;
+ n_components++;
+ }
+
+ for (n = 0; n < sigdata->n_samples; n++) {+ component[n_components].type = IT_COMPONENT_SAMPLE;
+ component[n_components].n = n;
+ component[n_components].offset = dumbfile_igetl(f);
+ component[n_components].sampfirst = -1;
+ n_components++;
+ }
+
+ for (n = 0; n < sigdata->n_patterns; n++) {+ long offset = dumbfile_igetl(f);
+ if (offset) {+ component[n_components].type = IT_COMPONENT_PATTERN;
+ component[n_components].n = n;
+ component[n_components].offset = offset;
+ component[n_components].sampfirst = -1;
+ n_components++;
+ } else {+ /* Empty 64-row pattern */
+ sigdata->pattern[n].n_rows = 64;
+ sigdata->pattern[n].n_entries = 0;
+ }
+ }
+
+ if (dumbfile_error(f)) {+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ /*
+ if (!(sigdata->flags & 128) != !(special & 8)) {+ fprintf(stderr, "Flags Bit 7 (\"Request embedded MIDI configuration\"): %s\n", sigdata->flags & 128 ? "=SET=" : "clear");
+ fprintf(stderr, "Special Bit 3 (\"MIDI configuration embedded\") : %s\n", special & 8 ? "=SET=" : "clear");
+ fprintf(stderr, "entheh would like to investigate this IT file.\n");
+ fprintf(stderr, "Please contact him! entheh@users.sf.net\n");
+ }
+ */
+
+ if (special & 8) {+ /* MIDI configuration is embedded. */
+ unsigned char mididata[32];
+ int i;
+ sigdata->midi = malloc(sizeof(*sigdata->midi));
+ if (!sigdata->midi) {+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ // Should we be happy with this outcome in some situations?
+ }
+ // What are we skipping?
+ i = dumbfile_igetw(f);
+ if (dumbfile_error(f) || dumbfile_skip(f, 8*i)) {+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ /* Read embedded MIDI configuration */
+ // What are the first 9 commands for?
+ if (dumbfile_skip(f, 32*9)) {+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (i = 0; i < 16; i++) {+ unsigned char len = 0;
+ int j, leftdigit = -1;
+ if (dumbfile_getnc((char *)mididata, 32, f) < 32) {+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ sigdata->midi->SFmacroz[i] = 0;
+ for (j = 0; j < 32; j++) {+ if (leftdigit >= 0) {+ if (mididata[j] == 0) {+ sigdata->midi->SFmacro[i][len++] = leftdigit;
+ break;
+ } else if (mididata[j] == ' ')
+ sigdata->midi->SFmacro[i][len++] = leftdigit;
+ else if (mididata[j] >= '0' && mididata[j] <= '9')
+ sigdata->midi->SFmacro[i][len++] = (leftdigit << 4) | (mididata[j] - '0');
+ else if (mididata[j] >= 'A' && mididata[j] <= 'F')
+ sigdata->midi->SFmacro[i][len++] = (leftdigit << 4) | (mididata[j] - 'A' + 0xA);
+ leftdigit = -1;
+ } else if (mididata[j] == 0)
+ break;
+ else if (mididata[j] == 'z')
+ sigdata->midi->SFmacroz[i] |= 1 << len++;
+ else if (mididata[j] >= '0' && mididata[j] <= '9')
+ leftdigit = mididata[j] - '0';
+ else if (mididata[j] >= 'A' && mididata[j] <= 'F')
+ leftdigit = mididata[j] - 'A' + 0xA;
+ }
+ sigdata->midi->SFmacrolen[i] = len;
+ }
+ for (i = 0; i < 128; i++) {+ unsigned char len = 0;
+ int j, leftdigit = -1;
+ dumbfile_getnc((char *)mididata, 32, f);
+ for (j = 0; j < 32; j++) {+ if (leftdigit >= 0) {+ if (mididata[j] == 0) {+ sigdata->midi->Zmacro[i][len++] = leftdigit;
+ break;
+ } else if (mididata[j] == ' ')
+ sigdata->midi->Zmacro[i][len++] = leftdigit;
+ else if (mididata[j] >= '0' && mididata[j] <= '9')
+ sigdata->midi->Zmacro[i][len++] = (leftdigit << 4) | (mididata[j] - '0');
+ else if (mididata[j] >= 'A' && mididata[j] <= 'F')
+ sigdata->midi->Zmacro[i][len++] = (leftdigit << 4) | (mididata[j] - 'A' + 0xA);
+ leftdigit = -1;
+ } else if (mididata[j] == 0)
+ break;
+ else if (mididata[j] >= '0' && mididata[j] <= '9')
+ leftdigit = mididata[j] - '0';
+ else if (mididata[j] >= 'A' && mididata[j] <= 'F')
+ leftdigit = mididata[j] - 'A' + 0xA;
+ }
+ sigdata->midi->Zmacrolen[i] = len;
+ }
+ }
+
+ sigdata->flags &= IT_REAL_FLAGS;
+
+ qsort(component, n_components, sizeof(IT_COMPONENT), &it_component_compare);
+
+ buffer = malloc(65536);
+ if (!buffer) {+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ for (n = 0; n < n_components; n++) {+ long offset;
+ int m;
+
+ /* XXX */
+ if ( component[n].offset == 0 ) {+ switch (component[n].type) {+ case IT_COMPONENT_INSTRUMENT:
+ memset( &sigdata->instrument[component[n].n], 0, sizeof(IT_INSTRUMENT) );
+ break;
+ case IT_COMPONENT_SAMPLE:
+ memset( &sigdata->sample[component[n].n], 0, sizeof(IT_SAMPLE) );
+ break;
+ case IT_COMPONENT_PATTERN:
+ {+ IT_PATTERN * p = &sigdata->pattern[component[n].n];
+ p->entry = 0;
+ p->n_rows = 64;
+ p->n_entries = 0;
+ }
+ break;
+ }
+ continue;
+ }
+
+ if (dumbfile_seek(f, component[n].offset, DFS_SEEK_SET)) {+ free(buffer);
+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ switch (component[n].type) {+
+ case IT_COMPONENT_SONG_MESSAGE:
+ if ( n < n_components ) {+ message_length = min( message_length, (int)(component[n+1].offset - component[n].offset) );
+ }
+ sigdata->song_message = malloc(message_length + 1);
+ if (sigdata->song_message) {+ if (dumbfile_getnc((char *)sigdata->song_message, message_length, f) < message_length) {+ free(buffer);
+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ sigdata->song_message[message_length] = 0;
+ }
+ break;
+
+ case IT_COMPONENT_INSTRUMENT:
+ if (cmwt < 0x200)
+ m = it_read_old_instrument(&sigdata->instrument[component[n].n], f);
+ else
+ m = it_read_instrument(&sigdata->instrument[component[n].n], f, (n + 1 < n_components) ? (int)(component[n+1].offset - component[n].offset) : 0);
+
+ if (m) {+ free(buffer);
+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ break;
+
+ case IT_COMPONENT_PATTERN:
+ if (it_read_pattern(&sigdata->pattern[component[n].n], f, buffer)) {+ free(buffer);
+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ break;
+
+ case IT_COMPONENT_SAMPLE:
+ if (it_read_sample_header(&sigdata->sample[component[n].n], &sample_convert[component[n].n], &offset, f)) {+ free(buffer);
+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ if (sigdata->sample[component[n].n].flags & IT_SAMPLE_EXISTS) {+ short *sample;
+
+ for (m = n + 1; m < n_components; m++)
+ if (component[m].offset > offset)
+ break;
+ m--;
+
+ sample = &component[m].sampfirst;
+
+ while (*sample >= 0 && component[*sample].offset <= offset)
+ sample = &component[*sample].sampnext;
+
+ component[n].sampnext = *sample;
+ *sample = n;
+
+ component[n].offset = offset;
+ }
+ }
+
+ m = component[n].sampfirst;
+
+ while (m >= 0) {+ if (dumbfile_seek(f, component[m].offset, DFS_SEEK_SET)) {+ free(buffer);
+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ if (it_read_sample_data(&sigdata->sample[component[m].n], sample_convert[component[m].n], f)) {+ free(buffer);
+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ m = component[m].sampnext;
+ }
+ }
+
+ for ( n = 0; n < 10; n++ )
+ {+ if ( dumbfile_getc( f ) == 'X' )
+ {+ if ( dumbfile_getc( f ) == 'T' )
+ {+ if ( dumbfile_getc( f ) == 'P' )
+ {+ if ( dumbfile_getc( f ) == 'M' )
+ {+ break;
+ }
+ }
+ }
+ }
+ }
+
+ if ( !dumbfile_error( f ) && n < 10 )
+ {+ unsigned int mptx_id = (unsigned int)dumbfile_igetl( f );
+ while ( !dumbfile_error( f ) && mptx_id != DUMB_ID('M','P','T','S') )+ {+ unsigned int size = dumbfile_igetw( f );
+ switch (mptx_id)
+ {+ /* TODO: Add instrument extension readers */
+
+ default:
+ dumbfile_skip(f, size * sigdata->n_instruments);
+ break;
+ }
+
+ mptx_id = (unsigned int)dumbfile_igetl( f );
+ }
+
+ mptx_id = (unsigned int)dumbfile_igetl( f );
+ while ( !dumbfile_error(f) && dumbfile_pos(f) < dumbfile_get_size(f) )
+ {+ unsigned int size = dumbfile_igetw( f );
+ switch (mptx_id)
+ {+ /* TODO: Add more song extension readers */
+
+ case DUMB_ID('D','T','.','.'):+ if ( size == 2 )
+ sigdata->tempo = dumbfile_igetw( f );
+ else if ( size == 4 )
+ sigdata->tempo = (int)dumbfile_igetl( f );
+ break;
+
+ default:
+ dumbfile_skip(f, size);
+ break;
+ }
+ mptx_id = (unsigned int)dumbfile_igetl( f );
+ }
+ }
+
+ free(buffer);
+ free(component);
+
+ _dumb_it_fix_invalid_orders(sigdata);
+
+ return sigdata;
+}
+
+
+
+DUH *dumb_read_it_quick(DUMBFILE *f)
+{+ sigdata_t *sigdata;
+
+ DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
+
+ sigdata = it_load_sigdata(f);
+
+ if (!sigdata)
+ return NULL;
+
+ {+ const char *tag[2][2];
+ tag[0][0] = "TITLE";
+ tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
+ tag[1][0] = "FORMAT";
+ tag[1][1] = "IT";
+ return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
+ }
+}
--- /dev/null
+++ b/src/it/itread2.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * itread2.c - Function to read an Impulse Tracker / / \ \
+ * module from an open file and do an | < / \_
+ * initial run-through. | \/ /\ /
+ * \_ / > /
+ * Split off from itread.c by entheh. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+
+
+
+DUH *dumb_read_it(DUMBFILE *f)
+{+ DUH *duh = dumb_read_it_quick(f);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/itrender.c
@@ -1,0 +1,6102 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * itrender.c - Code to render an Impulse Tracker / / \ \
+ * module. | < / \_
+ * | \/ /\ /
+ * Written - painstakingly - by entheh. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "dumb.h"
+#include "internal/dumb.h"
+#include "internal/it.h"
+#include "internal/lpc.h"
+
+#include "internal/resampler.h"
+
+// Keep this disabled, as it's actually slower than the original C/integer version
+//
+//#ifdef __APPLE__
+//#include <TargetConditionals.h>
+//#if TARGET_CPU_ARM || TARGET_CPU_ARM64
+//#include <arm_neon.h>
+//#define FILTER_NEON
+//#endif
+//#endif
+
+// #define BIT_ARRAY_BULLSHIT
+
+static IT_PLAYING *new_playing()
+{+ IT_PLAYING * r = (IT_PLAYING*) malloc(sizeof(*r));
+ if (r)
+ {+ r->resampler.fir_resampler_ratio = 0.0;
+ r->resampler.fir_resampler[0] = resampler_create();
+ if ( !r->resampler.fir_resampler[0] ) {+ free( r );
+ return NULL;
+ }
+ r->resampler.fir_resampler[1] = resampler_create();
+ if ( !r->resampler.fir_resampler[1] ) {+ resampler_delete( r->resampler.fir_resampler[0] );
+ free( r );
+ return NULL;
+ }
+ }
+ return r;
+}
+
+static void free_playing(IT_PLAYING * r)
+{+ resampler_delete( r->resampler.fir_resampler[1] );
+ resampler_delete( r->resampler.fir_resampler[0] );
+ free( r );
+}
+
+static IT_PLAYING *dup_playing(IT_PLAYING *src, IT_CHANNEL *dstchannel, IT_CHANNEL *srcchannel)
+{+ IT_PLAYING *dst;
+
+ if (!src) return NULL;
+
+ dst = malloc(sizeof(*dst));
+ if (!dst) return NULL;
+
+ dst->flags = src->flags;
+ dst->resampling_quality = src->resampling_quality;
+
+ ASSERT(src->channel);
+ dst->channel = &dstchannel[src->channel - srcchannel];
+ dst->sample = src->sample;
+ dst->instrument = src->instrument;
+ dst->env_instrument = src->env_instrument;
+
+ dst->sampnum = src->sampnum;
+ dst->instnum = src->instnum;
+
+ dst->declick_stage = src->declick_stage;
+
+ dst->float_volume[0] = src->float_volume[0];
+ dst->float_volume[1] = src->float_volume[1];
+
+ dst->ramp_volume[0] = src->ramp_volume[0];
+ dst->ramp_volume[1] = src->ramp_volume[1];
+
+ dst->ramp_delta[0] = src->ramp_delta[0];
+ dst->ramp_delta[1] = src->ramp_delta[1];
+
+ dst->channel_volume = src->channel_volume;
+
+ dst->volume = src->volume;
+ dst->pan = src->pan;
+
+ dst->volume_offset = src->volume_offset;
+ dst->panning_offset = src->panning_offset;
+
+ dst->note = src->note;
+
+ dst->enabled_envelopes = src->enabled_envelopes;
+
+ dst->filter_cutoff = src->filter_cutoff;
+ dst->filter_resonance = src->filter_resonance;
+
+ dst->true_filter_cutoff = src->true_filter_cutoff;
+ dst->true_filter_resonance = src->true_filter_resonance;
+
+ dst->vibrato_speed = src->vibrato_speed;
+ dst->vibrato_depth = src->vibrato_depth;
+ dst->vibrato_n = src->vibrato_n;
+ dst->vibrato_time = src->vibrato_time;
+ dst->vibrato_waveform = src->vibrato_waveform;
+
+ dst->tremolo_speed = src->tremolo_speed;
+ dst->tremolo_depth = src->tremolo_depth;
+ dst->tremolo_time = src->tremolo_time;
+ dst->tremolo_waveform = src->tremolo_waveform;
+
+ dst->panbrello_speed = src->panbrello_speed;
+ dst->panbrello_depth = src->panbrello_depth;
+ dst->panbrello_time = src->panbrello_time;
+ dst->panbrello_waveform = src->panbrello_waveform;
+ dst->panbrello_random = src->panbrello_random;
+
+ dst->sample_vibrato_time = src->sample_vibrato_time;
+ dst->sample_vibrato_waveform = src->sample_vibrato_waveform;
+ dst->sample_vibrato_depth = src->sample_vibrato_depth;
+
+ dst->slide = src->slide;
+ dst->delta = src->delta;
+ dst->finetune = src->finetune;
+
+ dst->volume_envelope = src->volume_envelope;
+ dst->pan_envelope = src->pan_envelope;
+ dst->pitch_envelope = src->pitch_envelope;
+
+ dst->fadeoutcount = src->fadeoutcount;
+
+ dst->filter_state[0] = src->filter_state[0];
+ dst->filter_state[1] = src->filter_state[1];
+
+ dst->resampler = src->resampler;
+ dst->resampler.pickup_data = dst;
+ dst->resampler.fir_resampler_ratio = src->resampler.fir_resampler_ratio;
+ dst->resampler.fir_resampler[0] = resampler_dup( src->resampler.fir_resampler[0] );
+ if ( !dst->resampler.fir_resampler[0] ) {+ free( dst );
+ return NULL;
+ }
+ dst->resampler.fir_resampler[1] = resampler_dup( src->resampler.fir_resampler[1] );
+ if ( !dst->resampler.fir_resampler[1] ) {+ resampler_delete( dst->resampler.fir_resampler[0] );
+ free( dst );
+ return NULL;
+ }
+ dst->time_lost = src->time_lost;
+
+ //dst->output = src->output;
+
+ return dst;
+}
+
+
+
+static void dup_channel(IT_CHANNEL *dst, IT_CHANNEL *src)
+{+ dst->flags = src->flags;
+
+ dst->volume = src->volume;
+ dst->volslide = src->volslide;
+ dst->xm_volslide = src->xm_volslide;
+ dst->panslide = src->panslide;
+
+ dst->pan = src->pan;
+ dst->truepan = src->truepan;
+
+ dst->channelvolume = src->channelvolume;
+ dst->channelvolslide = src->channelvolslide;
+
+ dst->instrument = src->instrument;
+ dst->note = src->note;
+
+ dst->SFmacro = src->SFmacro;
+
+ dst->filter_cutoff = src->filter_cutoff;
+ dst->filter_resonance = src->filter_resonance;
+
+ dst->key_off_count = src->key_off_count;
+ dst->note_cut_count = src->note_cut_count;
+ dst->note_delay_count = src->note_delay_count;
+ dst->note_delay_entry = src->note_delay_entry;
+
+ dst->new_note_action = src->new_note_action;
+
+ dst->arpeggio_table = src->arpeggio_table;
+ memcpy(dst->arpeggio_offsets, src->arpeggio_offsets, sizeof(dst->arpeggio_offsets));
+ dst->retrig = src->retrig;
+ dst->xm_retrig = src->xm_retrig;
+ dst->retrig_tick = src->retrig_tick;
+
+ dst->tremor_time = src->tremor_time;
+
+ dst->vibrato_waveform = src->vibrato_waveform;
+ dst->tremolo_waveform = src->tremolo_waveform;
+ dst->panbrello_waveform = src->panbrello_waveform;
+
+ dst->portamento = src->portamento;
+ dst->toneporta = src->toneporta;
+ dst->toneslide = src->toneslide;
+ dst->toneslide_tick = src->toneslide_tick;
+ dst->last_toneslide_tick = src->last_toneslide_tick;
+ dst->ptm_toneslide = src->ptm_toneslide;
+ dst->ptm_last_toneslide = src->ptm_last_toneslide;
+ dst->okt_toneslide = src->okt_toneslide;
+ dst->destnote = src->destnote;
+
+ dst->glissando = src->glissando;
+
+ dst->sample = src->sample;
+ dst->truenote = src->truenote;
+
+ dst->midi_state = src->midi_state;
+
+ dst->lastvolslide = src->lastvolslide;
+ dst->lastDKL = src->lastDKL;
+ dst->lastEF = src->lastEF;
+ dst->lastG = src->lastG;
+ dst->lastHspeed = src->lastHspeed;
+ dst->lastHdepth = src->lastHdepth;
+ dst->lastRspeed = src->lastRspeed;
+ dst->lastRdepth = src->lastRdepth;
+ dst->lastYspeed = src->lastYspeed;
+ dst->lastYdepth = src->lastYdepth;
+ dst->lastI = src->lastI;
+ dst->lastJ = src->lastJ;
+ dst->lastN = src->lastN;
+ dst->lastO = src->lastO;
+ dst->high_offset = src->high_offset;
+ dst->lastP = src->lastP;
+ dst->lastQ = src->lastQ;
+ dst->lastS = src->lastS;
+ dst->pat_loop_row = src->pat_loop_row;
+ dst->pat_loop_count = src->pat_loop_count;
+ dst->pat_loop_end_row = src->pat_loop_end_row;
+ dst->lastW = src->lastW;
+
+ dst->xm_lastE1 = src->xm_lastE1;
+ dst->xm_lastE2 = src->xm_lastE2;
+ dst->xm_lastEA = src->xm_lastEA;
+ dst->xm_lastEB = src->xm_lastEB;
+ dst->xm_lastX1 = src->xm_lastX1;
+ dst->xm_lastX2 = src->xm_lastX2;
+
+ dst->inv_loop_delay = src->inv_loop_delay;
+ dst->inv_loop_speed = src->inv_loop_speed;
+ dst->inv_loop_offset = src->inv_loop_offset;
+
+ dst->playing = dup_playing(src->playing, dst, src);
+
+#ifdef BIT_ARRAY_BULLSHIT
+ dst->played_patjump = bit_array_dup(src->played_patjump);
+ dst->played_patjump_order = src->played_patjump_order;
+#endif
+
+ //dst->output = src->output;
+}
+
+
+
+/* Allocate the new callbacks first, then pass them to this function!
+ * It will free them on failure.
+ */
+static DUMB_IT_SIGRENDERER *dup_sigrenderer(DUMB_IT_SIGRENDERER *src, int n_channels, IT_CALLBACKS *callbacks)
+{+ DUMB_IT_SIGRENDERER *dst;
+ int i;
+
+ if (!src) {+ if (callbacks) free(callbacks);
+ return NULL;
+ }
+
+ dst = malloc(sizeof(*dst));
+ if (!dst) {+ if (callbacks) free(callbacks);
+ return NULL;
+ }
+
+ dst->sigdata = src->sigdata;
+
+ dst->n_channels = n_channels;
+
+ dst->resampling_quality = src->resampling_quality;
+
+ dst->globalvolume = src->globalvolume;
+ dst->globalvolslide = src->globalvolslide;
+
+ dst->tempo = src->tempo;
+ dst->temposlide = src->temposlide;
+
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++)
+ dup_channel(&dst->channel[i], &src->channel[i]);
+
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++)
+ dst->playing[i] = dup_playing(src->playing[i], dst->channel, src->channel);
+
+ dst->tick = src->tick;
+ dst->speed = src->speed;
+ dst->rowcount = src->rowcount;
+
+ dst->order = src->order;
+ dst->row = src->row;
+ dst->processorder = src->processorder;
+ dst->processrow = src->processrow;
+ dst->breakrow = src->breakrow;
+
+ dst->restart_position = src->restart_position;
+
+ dst->n_rows = src->n_rows;
+
+ dst->entry_start = src->entry_start;
+ dst->entry = src->entry;
+ dst->entry_end = src->entry_end;
+
+ dst->time_left = src->time_left;
+ dst->sub_time_left = src->sub_time_left;
+
+ dst->ramp_style = src->ramp_style;
+
+ dst->click_remover = NULL;
+
+ dst->callbacks = callbacks;
+
+#ifdef BIT_ARRAY_BULLSHIT
+ dst->played = bit_array_dup(src->played);
+
+ dst->looped = src->looped;
+ dst->time_played = src->time_played;
+ dst->row_timekeeper = timekeeping_array_dup(src->row_timekeeper);
+#endif
+
+ dst->gvz_time = src->gvz_time;
+ dst->gvz_sub_time = src->gvz_sub_time;
+
+ //dst->max_output = src->max_output;
+
+ return dst;
+}
+
+
+
+static const IT_MIDI default_midi = {+ /* unsigned char SFmacro[16][16]; */
+ {+ {0xF0, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}+ },
+ /* unsigned char SFmacrolen[16]; */
+ {4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},+ /* unsigned short SFmacroz[16]; */
+ /* Bitfield; bit 0 set = z in first position */
+ {+ 0x0008, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
+ },
+ /* unsigned char Zmacro[128][16]; */
+ {+ {0xF0, 0xF0, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0xF0, 0xF0, 0x01, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0xF0, 0xF0, 0x01, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0xF0, 0xF0, 0x01, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0xF0, 0xF0, 0x01, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0xF0, 0xF0, 0x01, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0xF0, 0xF0, 0x01, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0xF0, 0xF0, 0x01, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0xF0, 0xF0, 0x01, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0xF0, 0xF0, 0x01, 0x48, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0xF0, 0xF0, 0x01, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0xF0, 0xF0, 0x01, 0x58, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0xF0, 0xF0, 0x01, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0xF0, 0xF0, 0x01, 0x68, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0xF0, 0xF0, 0x01, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0xF0, 0xF0, 0x01, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+
+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+
+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},+
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+ /* unsigned char Zmacrolen[128]; */
+ {+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ }
+};
+
+
+
+static void it_reset_filter_state(IT_FILTER_STATE *state)
+{+ state->currsample = 0;
+ state->prevsample = 0;
+}
+
+
+
+#define LOG10 2.30258509299
+
+/* IMPORTANT: This function expects one extra sample in 'src' so it can apply
+ * click removal. It reads size samples, starting from src[0], and writes its
+ * output starting at dst[pos]. The pos parameter is required for getting
+ * click removal right.
+ */
+
+static void it_filter_int(DUMB_CLICK_REMOVER *cr, IT_FILTER_STATE *state, sample_t *dst, long pos, sample_t *src, long size, int step, int sampfreq, int cutoff, int resonance)
+{+ sample_t currsample = state->currsample;
+ sample_t prevsample = state->prevsample;
+
+ float a, b, c;
+
+ long datasize;
+
+ {+ float inv_angle = (float)(sampfreq * pow(0.5, 0.25 + cutoff*(1.0/(24<<IT_ENVELOPE_SHIFT))) * (1.0/(2*3.14159265358979323846*110.0)));
+ float loss = (float)exp(resonance*(-LOG10*1.2/128.0));
+ float d, e;
+#if 0
+ loss *= 2; // This is the mistake most players seem to make!
+#endif
+
+#if 1
+ d = (1.0f - loss) / inv_angle;
+ if (d > 2.0f) d = 2.0f;
+ d = (loss - d) * inv_angle;
+ e = inv_angle * inv_angle;
+ a = 1.0f / (1.0f + d + e);
+ c = -e * a;
+ b = 1.0f - a - c;
+#else
+ a = 1.0f / (inv_angle*inv_angle + inv_angle*loss + loss);
+ c = -(inv_angle*inv_angle) * a;
+ b = 1.0f - a - c;
+#endif
+ }
+
+ dst += pos * step;
+ datasize = size * step;
+
+#define INT_FILTERS
+#ifdef INT_FILTERS
+#define MULSCA(a, b) ((int)((LONG_LONG)((a) << 4) * (b) >> 32))
+#define SCALEB 12
+ {+ int ai = (int)(a * (1 << (16+SCALEB)));
+ int bi = (int)(b * (1 << (16+SCALEB)));
+ int ci = (int)(c * (1 << (16+SCALEB)));
+ int i;
+
+ if (cr) {+ sample_t startstep = MULSCA(src[0], ai) + MULSCA(currsample, bi) + MULSCA(prevsample, ci);
+ dumb_record_click(cr, pos, startstep);
+ }
+
+ for (i = 0; i < datasize; i += step) {+ {+ sample_t newsample = MULSCA(src[i], ai) + MULSCA(currsample, bi) + MULSCA(prevsample, ci);
+ prevsample = currsample;
+ currsample = newsample;
+ }
+ dst[i] += currsample;
+ }
+
+ if (cr) {+ sample_t endstep = MULSCA(src[datasize], ai) + MULSCA(currsample, bi) + MULSCA(prevsample, ci);
+ dumb_record_click(cr, pos + size, -endstep);
+ }
+ }
+#else
+#error This version is broken - it does not use step, and state should contain floats for it
+ if (cr) {+ float startstep = src[0]*a + currsample*b + prevsample*c;
+ dumb_record_click(cr, pos, (sample_t)startstep);
+ }
+
+ {+ int i = size % 3;
+ while (i > 0) {+ {+ float newsample = *src++*a + currsample*b + prevsample*c;
+ prevsample = currsample;
+ currsample = newsample;
+ }
+ *dst++ += (sample_t)currsample;
+ i--;
+ }
+ i = size / 3;
+ while (i > 0) {+ float newsample;
+ /* Gotta love unrolled loops! */
+ *dst++ += (sample_t)(newsample = *src++*a + currsample*b + prevsample*c);
+ *dst++ += (sample_t)(prevsample = *src++*a + newsample*b + currsample*c);
+ *dst++ += (sample_t)(currsample = *src++*a + prevsample*b + newsample*c);
+ i--;
+ }
+ }
+
+ if (cr) {+ float endstep = src[datasize]*a + currsample*b + prevsample*c;
+ dumb_record_click(cr, pos + size, -(sample_t)endstep);
+ }
+#endif
+
+ state->currsample = currsample;
+ state->prevsample = prevsample;
+}
+
+#if defined(_USE_SSE) && (defined(_M_IX86) || defined(__i386__) || defined(_M_X64) || defined(__amd64__))
+#include <xmmintrin.h>
+
+static void it_filter_sse(DUMB_CLICK_REMOVER *cr, IT_FILTER_STATE *state, sample_t *dst, long pos, sample_t *src, long size, int step, int sampfreq, int cutoff, int resonance)
+{+ __m128 data, impulse;
+ __m128 temp1, temp2;
+
+ sample_t currsample = state->currsample;
+ sample_t prevsample = state->prevsample;
+
+ float imp[4];
+
+ //profiler( filter_sse ); On ClawHammer Athlon64 3200+, ~12000 cycles, ~500 for that x87 setup code (as opposed to ~25500 for the original integer code)
+
+ long datasize;
+
+ {+ float inv_angle = (float)(sampfreq * pow(0.5, 0.25 + cutoff*(1.0/(24<<IT_ENVELOPE_SHIFT))) * (1.0/(2*3.14159265358979323846*110.0)));
+ float loss = (float)exp(resonance*(-LOG10*1.2/128.0));
+ float d, e;
+#if 0
+ loss *= 2; // This is the mistake most players seem to make!
+#endif
+
+#if 1
+ d = (1.0f - loss) / inv_angle;
+ if (d > 2.0f) d = 2.0f;
+ d = (loss - d) * inv_angle;
+ e = inv_angle * inv_angle;
+ imp[0] = 1.0f / (1.0f + d + e);
+ imp[2] = -e * imp[0];
+ imp[1] = 1.0f - imp[0] - imp[2];
+#else
+ imp[0] = 1.0f / (inv_angle*inv_angle + inv_angle*loss + loss);
+ imp[2] = -(inv_angle*inv_angle) * imp[0];
+ imp[1] = 1.0f - imp[0] - imp[2];
+#endif
+ imp[3] = 0.0f;
+ }
+
+ dst += pos * step;
+ datasize = size * step;
+
+ {+ int ai, bi, ci, i;
+
+ if (cr) {+ sample_t startstep;
+ ai = (int)(imp[0] * (1 << (16+SCALEB)));
+ bi = (int)(imp[1] * (1 << (16+SCALEB)));
+ ci = (int)(imp[2] * (1 << (16+SCALEB)));
+ startstep = MULSCA(src[0], ai) + MULSCA(currsample, bi) + MULSCA(prevsample, ci);
+ dumb_record_click(cr, pos, startstep);
+ }
+
+ temp1 = _mm_setzero_ps();
+ data = _mm_cvtsi32_ss( temp1, currsample );
+ temp2 = _mm_cvtsi32_ss( temp1, prevsample );
+ impulse = _mm_loadu_ps( (const float *) &imp );
+ data = _mm_shuffle_ps( data, temp2, _MM_SHUFFLE(1, 0, 0, 1) );
+
+ for (i = 0; i < datasize; i += step) {+ temp1 = _mm_cvtsi32_ss( data, src [i] );
+ temp1 = _mm_mul_ps( temp1, impulse );
+ temp2 = _mm_movehl_ps( temp2, temp1 );
+ temp1 = _mm_add_ps( temp1, temp2 );
+ temp2 = temp1;
+ temp2 = _mm_shuffle_ps( temp2, temp1, _MM_SHUFFLE(0, 0, 0, 1) );
+ temp1 = _mm_add_ps( temp1, temp2 );
+ temp1 = _mm_shuffle_ps( temp1, data, _MM_SHUFFLE(2, 1, 0, 0) );
+ data = temp1;
+ dst [i] += _mm_cvtss_si32( temp1 );
+ }
+
+ currsample = _mm_cvtss_si32( temp1 );
+ temp1 = _mm_shuffle_ps( temp1, data, _MM_SHUFFLE(0, 0, 0, 2) );
+ prevsample = _mm_cvtss_si32( temp1 );
+
+ if (cr) {+ sample_t endstep = MULSCA(src[datasize], ai) + MULSCA(currsample, bi) + MULSCA(prevsample, ci);
+ dumb_record_click(cr, pos + size, -endstep);
+ }
+ }
+
+ state->currsample = currsample;
+ state->prevsample = prevsample;
+}
+#endif
+
+#ifdef FILTER_NEON
+static void it_filter_neon(DUMB_CLICK_REMOVER *cr, IT_FILTER_STATE *state, sample_t *dst, long pos, sample_t *src, long size, int step, int sampfreq, int cutoff, int resonance)
+{+ float32x4_t data, impulse;
+ float32x4_t temp1;
+ float32x2_t temp2;
+ float32_t temp3;
+
+ sample_t currsample = state->currsample;
+ sample_t prevsample = state->prevsample;
+
+ float imp[4];
+
+ //profiler( filter_sse ); On ClawHammer Athlon64 3200+, ~12000 cycles, ~500 for that x87 setup code (as opposed to ~25500 for the original integer code)
+
+ long datasize;
+
+ {+ float inv_angle = (float)(sampfreq * pow(0.5, 0.25 + cutoff*(1.0/(24<<IT_ENVELOPE_SHIFT))) * (1.0/(2*3.14159265358979323846*110.0)));
+ float loss = (float)exp(resonance*(-LOG10*1.2/128.0));
+ float d, e;
+#if 0
+ loss *= 2; // This is the mistake most players seem to make!
+#endif
+
+#if 1
+ d = (1.0f - loss) / inv_angle;
+ if (d > 2.0f) d = 2.0f;
+ d = (loss - d) * inv_angle;
+ e = inv_angle * inv_angle;
+ imp[0] = 1.0f / (1.0f + d + e);
+ imp[2] = -e * imp[0];
+ imp[1] = 1.0f - imp[0] - imp[2];
+#else
+ imp[0] = 1.0f / (inv_angle*inv_angle + inv_angle*loss + loss);
+ imp[2] = -(inv_angle*inv_angle) * imp[0];
+ imp[1] = 1.0f - imp[0] - imp[2];
+#endif
+ imp[3] = 0.0f;
+ }
+
+ dst += pos * step;
+ datasize = size * step;
+
+ {+ int ai, bi, ci, i;
+
+ if (cr) {+ sample_t startstep;
+ ai = (int)(imp[0] * (1 << (16+SCALEB)));
+ bi = (int)(imp[1] * (1 << (16+SCALEB)));
+ ci = (int)(imp[2] * (1 << (16+SCALEB)));
+ startstep = MULSCA(src[0], ai) + MULSCA(currsample, bi) + MULSCA(prevsample, ci);
+ dumb_record_click(cr, pos, startstep);
+ }
+
+ data = vdupq_n_f32(0.0f);
+ data = vsetq_lane_f32( currsample, data, 1 );
+ data = vsetq_lane_f32( prevsample, data, 2 );
+ impulse = vld1q_f32( (const float32_t *) &imp );
+
+ for (i = 0; i < datasize; i += step) {+ data = vsetq_lane_f32( src [i], data, 0 );
+ temp1 = vmulq_f32(data, impulse);
+ temp2 = vadd_f32(vget_high_f32(temp1), vget_low_f32(temp1));
+ temp3 = vget_lane_f32(vpadd_f32(temp2, temp2), 0);
+ data = vextq_f32(data, data, 3);
+ data = vsetq_lane_f32(temp3, data, 1);
+ dst [i] += temp3;
+ }
+
+ currsample = temp3;
+ prevsample = vgetq_lane_f32(data, 2);
+
+ if (cr) {+ sample_t endstep = MULSCA(src[datasize], ai) + MULSCA(currsample, bi) + MULSCA(prevsample, ci);
+ dumb_record_click(cr, pos + size, -endstep);
+ }
+ }
+
+ state->currsample = currsample;
+ state->prevsample = prevsample;
+}
+#endif
+
+#undef LOG10
+
+#ifdef _USE_SSE
+#if defined(_M_IX86) || defined(__i386__)
+
+#ifdef _MSC_VER
+#include <intrin.h>
+#elif defined(__clang__) || defined(__GNUC__)
+static inline void
+__cpuid(int *data, int selector)
+{+#if defined(__PIC__) && defined(__i386__)
+ asm("xchgl %%ebx, %%esi; cpuid; xchgl %%ebx, %%esi"+ : "=a" (data[0]),
+ "=S" (data[1]),
+ "=c" (data[2]),
+ "=d" (data[3])
+ : "0" (selector));
+#elif defined(__PIC__) && defined(__amd64__)
+ asm("xchg{q} {%%}rbx, %q1; cpuid; xchg{q} {%%}rbx, %q1"+ : "=a" (data[0]),
+ "=&r" (data[1]),
+ "=c" (data[2]),
+ "=d" (data[3])
+ : "0" (selector));
+#else
+ asm("cpuid"+ : "=a" (data[0]),
+ "=b" (data[1]),
+ "=c" (data[2]),
+ "=d" (data[3])
+ : "a"(selector));
+#endif
+}
+#else
+#define __cpuid(a,b) memset((a), 0, sizeof(int) * 4)
+#endif
+
+static int query_cpu_feature_sse() {+ int buffer[4];
+ __cpuid(buffer,1);
+ if ((buffer[3]&(1<<25)) == 0) return 0;
+ return 1;
+}
+
+static int _dumb_it_use_sse = 0;
+
+void _dumb_init_sse()
+{+ static int initialized = 0;
+ if (!initialized)
+ {+ _dumb_it_use_sse = query_cpu_feature_sse();
+ initialized = 1;
+ }
+}
+
+#elif defined(_M_X64) || defined(__amd64__)
+
+static const int _dumb_it_use_sse = 1;
+
+void _dumb_init_sse() { }+
+#else
+
+static const int _dumb_it_use_sse = 0;
+
+void _dumb_init_sse() { }+
+#endif
+#endif
+
+static void it_filter(DUMB_CLICK_REMOVER *cr, IT_FILTER_STATE *state, sample_t *dst, long pos, sample_t *src, long size, int step, int sampfreq, int cutoff, int resonance)
+{+#if defined(_USE_SSE) && (defined(_M_IX86) || defined(__i386__) || defined(_M_X64) || defined(__amd64__))
+ _dumb_init_sse();
+ if ( _dumb_it_use_sse ) it_filter_sse( cr, state, dst, pos, src, size, step, sampfreq, cutoff, resonance );
+ else
+#endif
+#ifdef FILTER_NEON
+ it_filter_neon( cr, state, dst, pos, src, size, step, sampfreq, cutoff, resonance );
+#else
+ it_filter_int( cr, state, dst, pos, src, size, step, sampfreq, cutoff, resonance );
+#endif
+}
+
+
+
+static const signed char it_sine[256] = {+ 0, 2, 3, 5, 6, 8, 9, 11, 12, 14, 16, 17, 19, 20, 22, 23,
+ 24, 26, 27, 29, 30, 32, 33, 34, 36, 37, 38, 39, 41, 42, 43, 44,
+ 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 56, 57, 58, 59,
+ 59, 60, 60, 61, 61, 62, 62, 62, 63, 63, 63, 64, 64, 64, 64, 64,
+ 64, 64, 64, 64, 64, 64, 63, 63, 63, 62, 62, 62, 61, 61, 60, 60,
+ 59, 59, 58, 57, 56, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46,
+ 45, 44, 43, 42, 41, 39, 38, 37, 36, 34, 33, 32, 30, 29, 27, 26,
+ 24, 23, 22, 20, 19, 17, 16, 14, 12, 11, 9, 8, 6, 5, 3, 2,
+ 0, -2, -3, -5, -6, -8, -9,-11,-12,-14,-16,-17,-19,-20,-22,-23,
+ -24,-26,-27,-29,-30,-32,-33,-34,-36,-37,-38,-39,-41,-42,-43,-44,
+ -45,-46,-47,-48,-49,-50,-51,-52,-53,-54,-55,-56,-56,-57,-58,-59,
+ -59,-60,-60,-61,-61,-62,-62,-62,-63,-63,-63,-64,-64,-64,-64,-64,
+ -64,-64,-64,-64,-64,-64,-63,-63,-63,-62,-62,-62,-61,-61,-60,-60,
+ -59,-59,-58,-57,-56,-56,-55,-54,-53,-52,-51,-50,-49,-48,-47,-46,
+ -45,-44,-43,-42,-41,-39,-38,-37,-36,-34,-33,-32,-30,-29,-27,-26,
+ -24,-23,-22,-20,-19,-17,-16,-14,-12,-11, -9, -8, -6, -5, -3, -2
+};
+
+
+
+#if 1
+/** WARNING: use these! */
+/** JULIEN: Plus for XM compatibility it could be interesting to rename
+ * it_sawtooth[] to it_rampdown[], and add an it_rampup[].
+ * Also, still for XM compat', twood be good if it was possible to tell the
+ * the player not to retrig' the waveform on a new instrument.
+ * Both of these are only for completness though, as I don't think it would
+ * be very noticeable ;)
+ */
+/** ENTHEH: IT also has the 'don't retrig' thingy :) */
+static const signed char it_sawtooth[256] = {+ 64, 63, 63, 62, 62, 61, 61, 60, 60, 59, 59, 58, 58, 57, 57, 56,
+ 56, 55, 55, 54, 54, 53, 53, 52, 52, 51, 51, 50, 50, 49, 49, 48,
+ 48, 47, 47, 46, 46, 45, 45, 44, 44, 43, 43, 42, 42, 41, 41, 40,
+ 40, 39, 39, 38, 38, 37, 37, 36, 36, 35, 35, 34, 34, 33, 33, 32,
+ 32, 31, 31, 30, 30, 29, 29, 28, 28, 27, 27, 26, 26, 25, 25, 24,
+ 24, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 18, 18, 17, 17, 16,
+ 16, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 8,
+ 8, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 0,
+ 0, -1, -1, -2, -2, -3, -3, -4, -4, -5, -5, -6, -6, -7, -7, -8,
+ -8, -9, -9,-10,-10,-11,-11,-12,-12,-13,-13,-14,-14,-15,-15,-16,
+ -16,-17,-17,-18,-18,-19,-19,-20,-20,-21,-21,-22,-22,-23,-23,-24,
+ -24,-25,-25,-26,-26,-27,-27,-28,-28,-29,-29,-30,-30,-31,-31,-32,
+ -32,-33,-33,-34,-34,-35,-35,-36,-36,-37,-37,-38,-38,-39,-39,-40,
+ -40,-41,-41,-42,-42,-43,-43,-44,-44,-45,-45,-46,-46,-47,-47,-48,
+ -48,-49,-49,-50,-50,-51,-51,-52,-52,-53,-53,-54,-54,-55,-55,-56,
+ -56,-57,-57,-58,-58,-59,-59,-60,-60,-61,-61,-62,-62,-63,-63,-64
+};
+
+static const signed char it_squarewave[256] = {+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+static const signed char it_xm_ramp[256] = {+ 0, -1, -1, -2, -2, -3, -3, -4, -4, -5, -5, -6, -6, -7, -7, -8,
+ -8, -9, -9,-10,-10,-11,-11,-12,-12,-13,-13,-14,-14,-15,-15,-16,
+ -16,-17,-17,-18,-18,-19,-19,-20,-20,-21,-21,-22,-22,-23,-23,-24,
+ -24,-25,-25,-26,-26,-27,-27,-28,-28,-29,-29,-30,-30,-31,-31,-32,
+ -32,-33,-33,-34,-34,-35,-35,-36,-36,-37,-37,-38,-38,-39,-39,-40,
+ -40,-41,-41,-42,-42,-43,-43,-44,-44,-45,-45,-46,-46,-47,-47,-48,
+ -48,-49,-49,-50,-50,-51,-51,-52,-52,-53,-53,-54,-54,-55,-55,-56,
+ -56,-57,-57,-58,-58,-59,-59,-60,-60,-61,-61,-62,-62,-63,-63,-64,
+ 64, 63, 63, 62, 62, 61, 61, 60, 60, 59, 59, 58, 58, 57, 57, 56,
+ 56, 55, 55, 54, 54, 53, 53, 52, 52, 51, 51, 50, 50, 49, 49, 48,
+ 48, 47, 47, 46, 46, 45, 45, 44, 44, 43, 43, 42, 42, 41, 41, 40,
+ 40, 39, 39, 38, 38, 37, 37, 36, 36, 35, 35, 34, 34, 33, 33, 32,
+ 32, 31, 31, 30, 30, 29, 29, 28, 28, 27, 27, 26, 26, 25, 25, 24,
+ 24, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 18, 18, 17, 17, 16,
+ 16, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 8,
+ 8, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 0
+};
+
+static const signed char it_xm_squarewave[256] = {+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+ 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+ -64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,
+ -64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,
+ -64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,
+ -64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,
+ -64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,
+ -64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,
+ -64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,
+ -64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64,-64
+};
+
+#endif
+
+
+
+static void reset_tick_counts(DUMB_IT_SIGRENDERER *sigrenderer)
+{+ int i;
+
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {+ IT_CHANNEL *channel = &sigrenderer->channel[i];
+ channel->key_off_count = 0;
+ channel->note_cut_count = 0;
+ channel->note_delay_count = 0;
+ }
+}
+
+
+
+static const unsigned char arpeggio_mod[32] = {0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1};+static const unsigned char arpeggio_xm[32] = {0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2};+static const unsigned char arpeggio_okt_3[32] = {1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 0};+static const unsigned char arpeggio_okt_4[32] = {0, 2, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1};+static const unsigned char arpeggio_okt_5[32] = {2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2};+
+
+
+static void reset_channel_effects(IT_CHANNEL *channel)
+{+ channel->volslide = 0;
+ channel->xm_volslide = 0;
+ channel->panslide = 0;
+ channel->channelvolslide = 0;
+ channel->arpeggio_table = (const unsigned char *) &arpeggio_mod;
+ memset(channel->arpeggio_offsets, 0, sizeof(channel->arpeggio_offsets));
+ channel->retrig = 0;
+ if (channel->xm_retrig) {+ channel->xm_retrig = 0;
+ channel->retrig_tick = 0;
+ }
+ channel->tremor_time &= 127;
+ channel->portamento = 0;
+ channel->toneporta = 0;
+ if (channel->ptm_toneslide) {+ channel->ptm_last_toneslide = channel->ptm_toneslide;
+ channel->last_toneslide_tick = channel->toneslide_tick;
+ } else
+ channel->ptm_last_toneslide = 0;
+ channel->ptm_toneslide = 0;
+ channel->toneslide_tick = 0;
+ channel->okt_toneslide = 0;
+ if (channel->playing) {+ channel->playing->vibrato_n = 0;
+ channel->playing->tremolo_speed = 0;
+ channel->playing->tremolo_depth = 0;
+ channel->playing->panbrello_speed = 0;
+ }
+}
+
+static void reset_effects(DUMB_IT_SIGRENDERER *sigrenderer)
+{+ int i;
+
+ sigrenderer->globalvolslide = 0;
+ sigrenderer->temposlide = 0;
+
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {+ reset_channel_effects(&sigrenderer->channel[i]);
+ }
+}
+
+
+
+static void update_tremor(IT_CHANNEL *channel)
+{+ if ((channel->tremor_time & 128) && channel->playing) {+ if (channel->tremor_time == 128)
+ channel->tremor_time = (channel->lastI >> 4) | 192;
+ else if (channel->tremor_time == 192)
+ channel->tremor_time = (channel->lastI & 15) | 128;
+ else
+ channel->tremor_time--;
+ }
+}
+
+
+
+static void it_pickup_loop(DUMB_RESAMPLER *resampler, void *data)
+{+ resampler->pos -= resampler->end - resampler->start;
+ ((IT_PLAYING *)data)->time_lost += resampler->end - resampler->start;
+}
+
+
+
+static void it_pickup_pingpong_loop(DUMB_RESAMPLER *resampler, void *data)
+{+ if (resampler->dir < 0) {+ resampler->pos = (resampler->start << 1) - 1 - resampler->pos;
+ resampler->subpos ^= 65535;
+ resampler->dir = 1;
+ ((IT_PLAYING *)data)->time_lost += (resampler->end - resampler->start) << 1;
+ } else {+ resampler->pos = (resampler->end << 1) - 1 - resampler->pos;
+ resampler->subpos ^= 65535;
+ resampler->dir = -1;
+ }
+}
+
+
+
+static void it_pickup_stop_at_end(DUMB_RESAMPLER *resampler, void *data)
+{+ (void)data;
+
+ if (resampler->dir < 0) {+ resampler->pos = (resampler->start << 1) - 1 - resampler->pos;
+ resampler->subpos ^= 65535;
+ /* By rights, time_lost would be updated here. However, there is no
+ * need at this point; it will not be used.
+ *
+ * ((IT_PLAYING *)data)->time_lost += (resampler->src_end - resampler->src_start) << 1;
+ */
+ resampler->dir = 1;
+ } else
+ resampler->dir = 0;
+}
+
+
+
+static void it_pickup_stop_after_reverse(DUMB_RESAMPLER *resampler, void *data)
+{+ (void)data;
+
+ resampler->dir = 0;
+}
+
+
+
+static void it_playing_update_resamplers(IT_PLAYING *playing)
+{+ if ((playing->sample->flags & IT_SAMPLE_SUS_LOOP) && !(playing->flags & IT_PLAYING_SUSTAINOFF)) {+ playing->resampler.start = playing->sample->sus_loop_start;
+ playing->resampler.end = playing->sample->sus_loop_end;
+ if (playing->resampler.start == playing->resampler.end)
+ playing->resampler.pickup = &it_pickup_stop_at_end;
+ else if (playing->sample->flags & IT_SAMPLE_PINGPONG_SUS_LOOP)
+ playing->resampler.pickup = &it_pickup_pingpong_loop;
+ else
+ playing->resampler.pickup = &it_pickup_loop;
+ } else if (playing->sample->flags & IT_SAMPLE_LOOP) {+ playing->resampler.start = playing->sample->loop_start;
+ playing->resampler.end = playing->sample->loop_end;
+ if (playing->resampler.start == playing->resampler.end)
+ playing->resampler.pickup = &it_pickup_stop_at_end;
+ else if (playing->sample->flags & IT_SAMPLE_PINGPONG_LOOP)
+ playing->resampler.pickup = &it_pickup_pingpong_loop;
+ else
+ playing->resampler.pickup = &it_pickup_loop;
+ } else if (playing->flags & IT_PLAYING_REVERSE) {+ playing->resampler.start = 0;
+ playing->resampler.end = playing->sample->length;
+ playing->resampler.dir = -1;
+ playing->resampler.pickup = &it_pickup_stop_after_reverse;
+ } else {+ if (playing->sample->flags & IT_SAMPLE_SUS_LOOP)
+ playing->resampler.start = playing->sample->sus_loop_start;
+ else
+ playing->resampler.start = 0;
+ playing->resampler.end = playing->sample->length;
+ playing->resampler.pickup = &it_pickup_stop_at_end;
+ }
+ ASSERT(playing->resampler.pickup_data == playing);
+}
+
+
+
+/* This should be called whenever the sample or sample position changes. */
+static void it_playing_reset_resamplers(IT_PLAYING *playing, long pos)
+{+ int bits = playing->sample->flags & IT_SAMPLE_16BIT ? 16 : 8;
+ int quality = playing->resampling_quality;
+ int channels = playing->sample->flags & IT_SAMPLE_STEREO ? 2 : 1;
+ if (playing->sample->max_resampling_quality >= 0 && quality > playing->sample->max_resampling_quality)
+ quality = playing->sample->max_resampling_quality;
+ dumb_reset_resampler_n(bits, &playing->resampler, playing->sample->data, channels, pos, 0, 0, quality);
+ playing->resampler.pickup_data = playing;
+ playing->time_lost = 0;
+ playing->flags &= ~IT_PLAYING_DEAD;
+ it_playing_update_resamplers(playing);
+}
+
+static void it_retrigger_note(DUMB_IT_SIGRENDERER *sigrenderer, IT_CHANNEL *channel);
+
+/* Should we only be retriggering short samples on XM? */
+
+static void update_retrig(DUMB_IT_SIGRENDERER *sigrenderer, IT_CHANNEL *channel)
+{+ if (channel->xm_retrig) {+ channel->retrig_tick--;
+ if (channel->retrig_tick <= 0) {+ if (channel->playing) {+ it_playing_reset_resamplers(channel->playing, 0);
+ channel->playing->declick_stage = 0;
+ } else if (sigrenderer->sigdata->flags & IT_WAS_AN_XM) it_retrigger_note(sigrenderer, channel);
+ channel->retrig_tick = channel->xm_retrig;
+ }
+ } else if (channel->retrig & 0x0F) {+ channel->retrig_tick--;
+ if (channel->retrig_tick <= 0) {+ if (channel->retrig < 0x10) {+ } else if (channel->retrig < 0x20) {+ channel->volume--;
+ if (channel->volume > 64) channel->volume = 0;
+ } else if (channel->retrig < 0x30) {+ channel->volume -= 2;
+ if (channel->volume > 64) channel->volume = 0;
+ } else if (channel->retrig < 0x40) {+ channel->volume -= 4;
+ if (channel->volume > 64) channel->volume = 0;
+ } else if (channel->retrig < 0x50) {+ channel->volume -= 8;
+ if (channel->volume > 64) channel->volume = 0;
+ } else if (channel->retrig < 0x60) {+ channel->volume -= 16;
+ if (channel->volume > 64) channel->volume = 0;
+ } else if (channel->retrig < 0x70) {+ channel->volume <<= 1;
+ channel->volume /= 3;
+ } else if (channel->retrig < 0x80) {+ channel->volume >>= 1;
+ } else if (channel->retrig < 0x90) {+ } else if (channel->retrig < 0xA0) {+ channel->volume++;
+ if (channel->volume > 64) channel->volume = 64;
+ } else if (channel->retrig < 0xB0) {+ channel->volume += 2;
+ if (channel->volume > 64) channel->volume = 64;
+ } else if (channel->retrig < 0xC0) {+ channel->volume += 4;
+ if (channel->volume > 64) channel->volume = 64;
+ } else if (channel->retrig < 0xD0) {+ channel->volume += 8;
+ if (channel->volume > 64) channel->volume = 64;
+ } else if (channel->retrig < 0xE0) {+ channel->volume += 16;
+ if (channel->volume > 64) channel->volume = 64;
+ } else if (channel->retrig < 0xF0) {+ channel->volume *= 3;
+ channel->volume >>= 1;
+ if (channel->volume > 64) channel->volume = 64;
+ } else {+ channel->volume <<= 1;
+ if (channel->volume > 64) channel->volume = 64;
+ }
+ if (channel->playing) {+ it_playing_reset_resamplers(channel->playing, 0);
+ channel->playing->declick_stage = 0;
+ } else if (sigrenderer->sigdata->flags & IT_WAS_AN_XM) it_retrigger_note(sigrenderer, channel);
+ channel->retrig_tick = channel->retrig & 0x0F;
+ }
+ }
+}
+
+
+static void update_smooth_effects_playing(IT_PLAYING *playing)
+{+ playing->vibrato_time += playing->vibrato_n *
+ (playing->vibrato_speed << 2);
+ playing->tremolo_time += playing->tremolo_speed << 2;
+ playing->panbrello_time += playing->panbrello_speed;
+ if (playing->panbrello_waveform == 3)
+ playing->panbrello_random = (rand() % 129) - 64;
+}
+
+static void update_smooth_effects(DUMB_IT_SIGRENDERER *sigrenderer)
+{+ int i;
+
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {+ IT_CHANNEL *channel = &sigrenderer->channel[i];
+ IT_PLAYING *playing = channel->playing;
+
+ if (playing) {+ update_smooth_effects_playing(playing);
+ }
+ }
+
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ IT_PLAYING *playing = sigrenderer->playing[i];
+
+ if (playing) {+ update_smooth_effects_playing(playing);
+ }
+ }
+}
+
+
+static const unsigned char pt_tab_invloop[16] =
+{+ 0x00, 0x05, 0x06, 0x07, 0x08, 0x0A, 0x0B, 0x0D,
+ 0x0F, 0x13, 0x16, 0x1A, 0x20, 0x2B, 0x40, 0x80
+};
+
+static void update_invert_loop(IT_CHANNEL *channel, IT_SAMPLE *sample)
+{+ channel->inv_loop_delay += pt_tab_invloop[channel->inv_loop_speed];
+ if (channel->inv_loop_delay >= 0x80)
+ {+ channel->inv_loop_delay = 0;
+
+ if (sample && ((sample->flags & (IT_SAMPLE_EXISTS | IT_SAMPLE_LOOP)) == (IT_SAMPLE_EXISTS | IT_SAMPLE_LOOP)) && !(sample->flags & (IT_SAMPLE_STEREO | IT_SAMPLE_16BIT)))
+ {+ if (sample->loop_end - sample->loop_start >= 4)
+ {+ channel->inv_loop_offset++;
+ if (channel->inv_loop_offset >= (sample->loop_end - sample->loop_start)) channel->inv_loop_offset = 0;
+
+ ((char *)sample->data)[sample->loop_start + channel->inv_loop_offset] ^= 0xFF;
+ }
+ }
+ }
+}
+
+
+static void update_playing_effects(IT_PLAYING *playing)
+{+ IT_CHANNEL *channel = playing->channel;
+
+ if (channel->channelvolslide) {+ playing->channel_volume = channel->channelvolume;
+ }
+
+ if (channel->okt_toneslide) {+ if (channel->okt_toneslide--) {+ playing->note += channel->toneslide;
+ if (playing->note >= 120) {+ if (channel->toneslide < 0) playing->note = 0;
+ else playing->note = 119;
+ }
+ }
+ } else if (channel->ptm_toneslide) {+ if (--channel->toneslide_tick == 0) {+ channel->toneslide_tick = channel->ptm_toneslide;
+ if (playing) {+ playing->note += channel->toneslide;
+ if (playing->note >= 120) {+ if (channel->toneslide < 0) playing->note = 0;
+ else playing->note = 119;
+ }
+ if (channel->playing == playing) {+ channel->note = channel->truenote = playing->note;
+ }
+ if (channel->toneslide_retrig) {+ it_playing_reset_resamplers(playing, 0);
+ playing->declick_stage = 0;
+ }
+ }
+ }
+ }
+}
+
+
+static void update_effects(DUMB_IT_SIGRENDERER *sigrenderer)
+{+ int i;
+
+ if (sigrenderer->globalvolslide) {+ sigrenderer->globalvolume += sigrenderer->globalvolslide;
+ if (sigrenderer->globalvolume > 128) {+ if (sigrenderer->globalvolslide >= 0)
+ sigrenderer->globalvolume = 128;
+ else
+ sigrenderer->globalvolume = 0;
+ }
+ }
+
+ if (sigrenderer->temposlide) {+ sigrenderer->tempo += sigrenderer->temposlide;
+ if (sigrenderer->tempo < 32) {+ if (sigrenderer->temposlide >= 0)
+ sigrenderer->tempo = 255;
+ else
+ sigrenderer->tempo = 32;
+ }
+ }
+
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {+ IT_CHANNEL *channel = &sigrenderer->channel[i];
+ IT_PLAYING *playing = channel->playing;
+
+ if (channel->xm_volslide) {+ channel->volume += channel->xm_volslide;
+ if (channel->volume > 64) {+ if (channel->xm_volslide >= 0)
+ channel->volume = 64;
+ else
+ channel->volume = 0;
+ }
+ }
+
+ if (channel->volslide) {+ int clip = (sigrenderer->sigdata->flags & IT_WAS_AN_S3M) ? 63 : 64;
+ channel->volume += channel->volslide;
+ if (channel->volume > clip) {+ if (channel->volslide >= 0)
+ channel->volume = clip;
+ else
+ channel->volume = 0;
+ }
+ }
+
+ if (channel->panslide) {+ if (sigrenderer->sigdata->flags & IT_WAS_AN_XM) {+ if (IT_IS_SURROUND(channel->pan))
+ {+ channel->pan = 32;
+ channel->truepan = 32 + 128 * 64;
+ }
+ if (channel->panslide == -128)
+ channel->truepan = 32;
+ else
+ channel->truepan = MID(32, channel->truepan + channel->panslide*64, 32+255*64);
+ } else {+ if (IT_IS_SURROUND(channel->pan))
+ {+ channel->pan = 32;
+ }
+ channel->pan += channel->panslide;
+ if (channel->pan > 64) {+ if (channel->panslide >= 0)
+ channel->pan = 64;
+ else
+ channel->pan = 0;
+ }
+ channel->truepan = channel->pan << IT_ENVELOPE_SHIFT;
+ }
+ }
+
+ if (channel->channelvolslide) {+ channel->channelvolume += channel->channelvolslide;
+ if (channel->channelvolume > 64) {+ if (channel->channelvolslide >= 0)
+ channel->channelvolume = 64;
+ else
+ channel->channelvolume = 0;
+ }
+ }
+
+ update_tremor(channel);
+
+ update_retrig(sigrenderer, channel);
+
+ if (channel->inv_loop_speed) update_invert_loop(channel, playing ? playing->sample : NULL);
+
+ if (playing) {+ playing->slide += channel->portamento;
+
+ if (sigrenderer->sigdata->flags & IT_LINEAR_SLIDES) {+ if (channel->toneporta && channel->destnote < 120) {+ int currpitch = ((playing->note - 60) << 8) + playing->slide;
+ int destpitch = (channel->destnote - 60) << 8;
+ if (currpitch > destpitch) {+ currpitch -= channel->toneporta;
+ if (currpitch < destpitch) {+ currpitch = destpitch;
+ channel->destnote = IT_NOTE_OFF;
+ }
+ } else if (currpitch < destpitch) {+ currpitch += channel->toneporta;
+ if (currpitch > destpitch) {+ currpitch = destpitch;
+ channel->destnote = IT_NOTE_OFF;
+ }
+ }
+ playing->slide = currpitch - ((playing->note - 60) << 8);
+ }
+ } else {+ if (channel->toneporta && channel->destnote < 120) {+ float amiga_multiplier = playing->sample->C5_speed * (1.0f / AMIGA_DIVISOR);
+
+ float deltanote = (float)pow(DUMB_SEMITONE_BASE, 60 - playing->note);
+ /* deltanote is 1.0 for C-5, 0.5 for C-6, etc. */
+
+ float deltaslid = deltanote - playing->slide * amiga_multiplier;
+
+ float destdelta = (float)pow(DUMB_SEMITONE_BASE, 60 - channel->destnote);
+ if (deltaslid < destdelta) {+ playing->slide -= channel->toneporta;
+ deltaslid = deltanote - playing->slide * amiga_multiplier;
+ if (deltaslid > destdelta) {+ playing->note = channel->destnote;
+ playing->slide = 0;
+ channel->destnote = IT_NOTE_OFF;
+ }
+ } else {+ playing->slide += channel->toneporta;
+ deltaslid = deltanote - playing->slide * amiga_multiplier;
+ if (deltaslid < destdelta) {+ playing->note = channel->destnote;
+ playing->slide = 0;
+ channel->destnote = IT_NOTE_OFF;
+ }
+ }
+ }
+ }
+
+ update_playing_effects(playing);
+ }
+ }
+
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ IT_PLAYING *playing = sigrenderer->playing[i];
+ if (playing) update_playing_effects(playing);
+ }
+
+ update_smooth_effects(sigrenderer);
+}
+
+
+static void it_note_off(IT_PLAYING *playing);
+
+// This function should be renamed; it doesn't do the 'Update Pattern Variables' operation ittech.txt describes
+/* Returns 1 if a pattern loop is happening. */
+static int update_pattern_variables(DUMB_IT_SIGRENDERER *sigrenderer, IT_ENTRY *entry)
+{+ IT_CHANNEL *channel = &sigrenderer->channel[(int)entry->channel];
+
+ if (entry->mask & IT_ENTRY_EFFECT) {+ switch (entry->effect) {+ case IT_JUMP_TO_ORDER:
+ /* XXX jump and break in same row */
+ if ( ( ( sigrenderer->processrow | 0xC00 ) == 0xFFFE ) &&
+ ! ( sigrenderer->processrow & 0x800 ) ) {+ sigrenderer->processrow = 0xFFFE & ~0xC00;
+ } else {+ sigrenderer->breakrow = 0;
+ sigrenderer->processrow = 0xFFFE & ~0x400;
+ }
+ sigrenderer->processorder = entry->effectvalue - 1;
+ break;
+
+ case IT_S:
+ {+ unsigned char effectvalue = entry->effectvalue;
+ if (sigrenderer->sigdata->flags & IT_WAS_AN_S3M) {+ if (effectvalue == 0)
+ effectvalue = channel->lastDKL;
+ channel->lastDKL = effectvalue;
+ } else {+ if (effectvalue == 0)
+ effectvalue = channel->lastS;
+ }
+ channel->lastS = effectvalue;
+ switch (effectvalue >> 4) {+ case IT_S_PATTERN_LOOP:
+ {+ unsigned char v = effectvalue & 15;
+ if (v == 0) {+#ifdef BIT_ARRAY_BULLSHIT
+ if (!channel->played_patjump)
+ channel->played_patjump = bit_array_create(256);
+ else {+ if ( channel->played_patjump_order != 0xFFFE && channel->played_patjump_order != sigrenderer->order )
+ bit_array_merge(sigrenderer->played, channel->played_patjump, channel->played_patjump_order * 256);
+ //if (channel->played_patjump_order != sigrenderer->order)
+ bit_array_reset(channel->played_patjump);
+ }
+ channel->played_patjump_order = sigrenderer->order;
+#endif
+ channel->pat_loop_row = sigrenderer->processrow;
+ } else {+ if (channel->pat_loop_count == 0) {+#ifdef BIT_ARRAY_BULLSHIT
+ /* wft, uninitialized and no start marker yet... */
+ if (channel->played_patjump_order == 0xFFFE) {+ int n;
+ bit_array_destroy(channel->played_patjump);
+ channel->played_patjump = bit_array_create(256);
+ for (n = channel->pat_loop_row; n <= sigrenderer->row; n++)
+ bit_array_clear(sigrenderer->played, sigrenderer->order * 256 + n);
+ channel->played_patjump_order = sigrenderer->order;
+ } else if (channel->played_patjump_order == sigrenderer->order) {+ bit_array_set(channel->played_patjump, sigrenderer->row);
+ bit_array_mask(sigrenderer->played, channel->played_patjump, channel->played_patjump_order * 256);
+ //bit_array_reset(channel->played_patjump);
+ }
+#endif
+ channel->pat_loop_count = v;
+ sigrenderer->breakrow = channel->pat_loop_row;
+ if ((sigrenderer->sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_MOD)) == IT_WAS_AN_XM) {+ /* For XM files, if a loop occurs by itself, keep breakrow set for when the pattern ends - fun bug in FT2! */
+ if ((sigrenderer->processrow|0xC00) < 0xFFFE) {+ /* Infinite pattern loops are possible, so we check whether the pattern loop we're hitting now is earlier than the last one we hit. */
+ if (sigrenderer->processrow < channel->pat_loop_end_row)
+ sigrenderer->processorder = 0xFFFE; /* suspect infinite loop, so trigger loop callback */
+ else
+ sigrenderer->processorder = 0xFFFF; /* don't trigger loop callback */
+ channel->pat_loop_end_row = sigrenderer->processrow;
+ sigrenderer->processrow = 0xFFFF; /* special case: don't reset breakrow or pat_loop_end_row */
+ }
+ } else {+ /* IT files do this regardless of other flow control effects seen here. */
+ sigrenderer->processorder = 0xFFFF; /* special case: don't trigger loop callback */
+ sigrenderer->processrow = 0xFFFE;
+ }
+ return 1;
+ } else if (--channel->pat_loop_count) {+#ifdef BIT_ARRAY_BULLSHIT
+ if (channel->played_patjump_order == sigrenderer->order) {+ bit_array_set(channel->played_patjump, sigrenderer->row);
+ bit_array_mask(sigrenderer->played, channel->played_patjump, channel->played_patjump_order * 256);
+ //bit_array_reset(channel->played_patjump);
+ }
+#endif
+ sigrenderer->breakrow = channel->pat_loop_row;
+ if ((sigrenderer->sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_MOD)) == IT_WAS_AN_XM) {+ /* For XM files, if a loop occurs by itself, keep breakrow set for when the pattern ends - fun bug in FT2! */
+ if ((sigrenderer->processrow|0xC00) < 0xFFFE) {+ /* Infinite pattern loops are possible, so we check whether the pattern loop we're hitting now is earlier than the last one we hit. */
+ if (sigrenderer->processrow < channel->pat_loop_end_row)
+ sigrenderer->processorder = 0xFFFE; /* suspect infinite loop, so trigger loop callback */
+ else
+ sigrenderer->processorder = 0xFFFF; /* don't trigger loop callback */
+ channel->pat_loop_end_row = sigrenderer->processrow;
+ sigrenderer->processrow = 0xFFFF; /* special case: don't reset breakrow or pat_loop_end_row */
+ }
+ } else {+ /* IT files do this regardless of other flow control effects seen here. */
+ sigrenderer->processorder = 0xFFFF; /* special case: don't trigger loop callback */
+ sigrenderer->processrow = 0xFFFE;
+ }
+ return 1;
+ } else if ((sigrenderer->sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_MOD)) == IT_WAS_AN_XM) {+ channel->pat_loop_end_row = 0;
+ // TODO
+ /* Findings:
+ - If a pattern loop completes successfully, and then the pattern terminates, then the next pattern will start on the row corresponding to the E60.
+ - If a pattern loop doesn't do any loops, and then the pattern terminates, then the next pattern will start on the first row.
+ - If a break appears to the left of the pattern loop, it jumps into the relevant position in the next pattern, and that's it.
+ - If a break appears to the right of the pattern loop, it jumps to the start of the next pattern, and that's it.
+ - If we jump, then effect a loop using an old E60, and then the pattern ends, the next pattern starts on the row corresponding to the E60.
+ - Theory: breakrow is not cleared when it's a pattern loop effect!
+ */
+ if ((sigrenderer->processrow | 0xC00) < 0xFFFE) // I have no idea if this is correct or not - FT2 is so weird :(
+ sigrenderer->breakrow = channel->pat_loop_row; /* emulate bug in FT2 */
+ } else
+ channel->pat_loop_row = sigrenderer->processrow + 1;
+#ifdef BIT_ARRAY_BULLSHIT
+ /*channel->played_patjump_order |= 0x8000;*/
+ if (channel->played_patjump_order == sigrenderer->order) {+ bit_array_destroy(channel->played_patjump);
+ channel->played_patjump = 0;
+ channel->played_patjump_order = 0xFFFE;
+ }
+ bit_array_clear(sigrenderer->played, sigrenderer->order * 256 + sigrenderer->row);
+#endif
+ }
+ }
+ break;
+ case IT_S_PATTERN_DELAY:
+ sigrenderer->rowcount = 1 + (effectvalue & 15);
+ break;
+ }
+ }
+ }
+ }
+
+ return 0;
+}
+
+
+
+/* This function guarantees that channel->sample will always be valid if it
+ * is nonzero. In other words, to check if it is valid, simply check if it is
+ * nonzero.
+ */
+static void instrument_to_sample(DUMB_IT_SIGDATA *sigdata, IT_CHANNEL *channel)
+{+ if (sigdata->flags & IT_USE_INSTRUMENTS) {+ if (channel->instrument >= 1 && channel->instrument <= sigdata->n_instruments) {+ if (channel->note < 120) {+ channel->sample = sigdata->instrument[channel->instrument-1].map_sample[channel->note];
+ channel->truenote = sigdata->instrument[channel->instrument-1].map_note[channel->note];
+ } else
+ channel->sample = 0;
+ } else
+ channel->sample = 0;
+ } else {+ channel->sample = channel->instrument;
+ channel->truenote = channel->note;
+ }
+ if (!(channel->sample >= 1 && channel->sample <= sigdata->n_samples && (sigdata->sample[channel->sample-1].flags & IT_SAMPLE_EXISTS) && sigdata->sample[channel->sample-1].C5_speed))
+ channel->sample = 0;
+}
+
+
+
+static void fix_sample_looping(IT_PLAYING *playing)
+{+ if ((playing->sample->flags & (IT_SAMPLE_LOOP | IT_SAMPLE_SUS_LOOP)) ==
+ (IT_SAMPLE_LOOP | IT_SAMPLE_SUS_LOOP)) {+ if (playing->resampler.dir < 0) {+ playing->resampler.pos = (playing->sample->sus_loop_end << 1) - 1 - playing->resampler.pos;
+ playing->resampler.subpos ^= 65535;
+ playing->resampler.dir = 1;
+ }
+
+ playing->resampler.pos += playing->time_lost;
+ // XXX what
+ playing->time_lost = 0;
+ }
+}
+
+
+
+static void it_compatible_gxx_retrigger(DUMB_IT_SIGDATA *sigdata, IT_CHANNEL *channel)
+{+ int flags = 0;
+ if (channel->sample) {+ if (sigdata->flags & IT_USE_INSTRUMENTS) {+ if (!(channel->playing->flags & IT_PLAYING_SUSTAINOFF)) {+ if (channel->playing->env_instrument->volume_envelope.flags & IT_ENVELOPE_CARRY)
+ flags |= 1;
+ if (channel->playing->env_instrument->pan_envelope.flags & IT_ENVELOPE_CARRY)
+ flags |= 2;
+ if (channel->playing->env_instrument->pitch_envelope.flags & IT_ENVELOPE_CARRY)
+ flags |= 4;
+ }
+ }
+ }
+ if (!(flags & 1)) {+ channel->playing->volume_envelope.next_node = 0;
+ channel->playing->volume_envelope.tick = 0;
+ }
+ if (!(flags & 2)) {+ channel->playing->pan_envelope.next_node = 0;
+ channel->playing->pan_envelope.tick = 0;
+ }
+ if (!(flags & 4)) {+ channel->playing->pitch_envelope.next_node = 0;
+ channel->playing->pitch_envelope.tick = 0;
+ }
+ channel->playing->fadeoutcount = 1024;
+ // Should we remove IT_PLAYING_BACKGROUND? Test with sample with sustain loop...
+ channel->playing->flags &= ~(IT_PLAYING_BACKGROUND | IT_PLAYING_SUSTAINOFF | IT_PLAYING_FADING | IT_PLAYING_DEAD);
+ it_playing_update_resamplers(channel->playing);
+
+ if (!flags && channel->sample)
+ if (sigdata->flags & IT_USE_INSTRUMENTS)
+ channel->playing->env_instrument = &sigdata->instrument[channel->instrument-1];
+}
+
+
+
+static void it_note_off(IT_PLAYING *playing)
+{+ if (playing) {+ playing->enabled_envelopes |= IT_ENV_VOLUME;
+ playing->flags |= IT_PLAYING_BACKGROUND | IT_PLAYING_SUSTAINOFF;
+ fix_sample_looping(playing);
+ it_playing_update_resamplers(playing);
+ if (playing->instrument)
+ if ((playing->instrument->volume_envelope.flags & (IT_ENVELOPE_ON | IT_ENVELOPE_LOOP_ON)) != IT_ENVELOPE_ON)
+ playing->flags |= IT_PLAYING_FADING;
+ }
+}
+
+
+
+static void xm_note_off(DUMB_IT_SIGDATA *sigdata, IT_CHANNEL *channel)
+{+ if (channel->playing) {+ if (!channel->instrument || channel->instrument > sigdata->n_instruments ||
+ !(sigdata->instrument[channel->instrument-1].volume_envelope.flags & IT_ENVELOPE_ON))
+ //if (!(entry->mask & IT_ENTRY_INSTRUMENT))
+ // dunno what that was there for ...
+ channel->volume = 0;
+ channel->playing->flags |= IT_PLAYING_SUSTAINOFF | IT_PLAYING_FADING;
+ it_playing_update_resamplers(channel->playing);
+ }
+}
+
+
+static void recalculate_it_envelope_node(IT_PLAYING_ENVELOPE *pe, IT_ENVELOPE *e)
+{+ int envpos = pe->tick;
+ unsigned int pt = e->n_nodes - 1;
+ unsigned int i;
+ for (i = 0; i < (unsigned int)(e->n_nodes - 1); ++i)
+ {+ if (envpos <= e->node_t[i])
+ {+ pt = i;
+ break;
+ }
+ }
+ pe->next_node = pt;
+}
+
+
+static void recalculate_it_envelope_nodes(IT_PLAYING *playing)
+{+ recalculate_it_envelope_node(&playing->volume_envelope, &playing->env_instrument->volume_envelope);
+ recalculate_it_envelope_node(&playing->pan_envelope, &playing->env_instrument->pitch_envelope);
+ recalculate_it_envelope_node(&playing->pitch_envelope, &playing->env_instrument->pitch_envelope);
+}
+
+
+static void it_retrigger_note(DUMB_IT_SIGRENDERER *sigrenderer, IT_CHANNEL *channel)
+{+ int vol_env_tick = 0;
+ int pan_env_tick = 0;
+ int pitch_env_tick = 0;
+
+ DUMB_IT_SIGDATA *sigdata = sigrenderer->sigdata;
+ unsigned char nna = ~0;
+ int i, envelopes_copied = 0;
+
+ if (channel->playing) {+ if (channel->note == IT_NOTE_CUT)
+ nna = NNA_NOTE_CUT;
+ else if (channel->note == IT_NOTE_OFF)
+ nna = NNA_NOTE_OFF;
+ else if (channel->note > 120)
+ nna = NNA_NOTE_FADE;
+ else if (!channel->playing->instrument || (channel->playing->flags & IT_PLAYING_DEAD))
+ nna = NNA_NOTE_CUT;
+ else if (channel->new_note_action != 0xFF)
+ {+ nna = channel->new_note_action;
+ }
+ else
+ nna = channel->playing->instrument->new_note_action;
+
+ if (!(channel->playing->flags & IT_PLAYING_SUSTAINOFF))
+ {+ if (nna != NNA_NOTE_CUT)
+ vol_env_tick = channel->playing->volume_envelope.tick;
+ pan_env_tick = channel->playing->pan_envelope.tick;
+ pitch_env_tick = channel->playing->pitch_envelope.tick;
+ envelopes_copied = 1;
+ }
+
+ switch (nna) {+ case NNA_NOTE_CUT:
+ channel->playing->declick_stage = 3;
+ break;
+ case NNA_NOTE_OFF:
+ it_note_off(channel->playing);
+ break;
+ case NNA_NOTE_FADE:
+ channel->playing->flags |= IT_PLAYING_BACKGROUND | IT_PLAYING_FADING;
+ break;
+ }
+ }
+
+ channel->new_note_action = 0xFF;
+
+ if (channel->sample == 0 || channel->note > 120)
+ return;
+
+ channel->destnote = IT_NOTE_OFF;
+
+ if (channel->playing) {+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (!sigrenderer->playing[i]) {+ sigrenderer->playing[i] = channel->playing;
+ channel->playing = NULL;
+ break;
+ }
+ }
+
+ if (sigrenderer->sigdata->flags & IT_USE_INSTRUMENTS)
+ {+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ IT_PLAYING * playing = sigrenderer->playing[i];
+ if (playing && playing->channel == channel && playing->instrument->dup_check_type) {+ int match = 1;
+ switch (playing->instrument->dup_check_type)
+ {+ case DCT_NOTE:
+ match = (channel->truenote == playing->note);
+ case DCT_SAMPLE:
+ match = match && (channel->sample == playing->sampnum);
+ case DCT_INSTRUMENT:
+ match = match && (channel->instrument == playing->instnum);
+ break;
+ }
+
+ if (match)
+ {+ switch (playing->instrument->dup_check_action)
+ {+ case DCA_NOTE_CUT:
+ playing->declick_stage = 3;
+ if (channel->playing == playing) channel->playing = NULL;
+ break;
+ case DCA_NOTE_OFF:
+ if (!(playing->flags & IT_PLAYING_SUSTAINOFF))
+ it_note_off(playing);
+ break;
+ case DCA_NOTE_FADE:
+ playing->flags |= IT_PLAYING_BACKGROUND | IT_PLAYING_FADING;
+ break;
+ }
+ }
+ }
+ }
+ }
+
+/** WARNING - come up with some more heuristics for replacing old notes */
+#if 0
+ if (channel->playing) {+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (sigrenderer->playing[i]->flags & IT_PLAYING_BACKGROUND) {+ write_seqtime();
+ sequence_c(SEQUENCE_STOP_SIGNAL);
+ sequence_c(i);
+ channel->VChannel = &module->VChannel[i];
+ break;
+ }
+ }
+ }
+#endif
+ }
+
+ if (channel->playing)
+ free_playing(channel->playing);
+
+ channel->playing = new_playing();
+
+ if (!channel->playing)
+ return;
+
+ if (!envelopes_copied && sigdata->flags & IT_USE_INSTRUMENTS) {+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ IT_PLAYING * playing = sigrenderer->playing[i];
+ if (!playing || playing->channel != channel) continue;
+ if (playing->flags & IT_PLAYING_SUSTAINOFF) continue;
+ if (nna != NNA_NOTE_CUT)
+ vol_env_tick = playing->volume_envelope.tick;
+ pan_env_tick = playing->pan_envelope.tick;
+ pitch_env_tick = playing->pitch_envelope.tick;
+ envelopes_copied = 1;
+ break;
+ }
+ }
+
+ channel->playing->flags = 0;
+ channel->playing->resampling_quality = sigrenderer->resampling_quality;
+ channel->playing->channel = channel;
+ channel->playing->sample = &sigdata->sample[channel->sample-1];
+ if (sigdata->flags & IT_USE_INSTRUMENTS)
+ channel->playing->instrument = &sigdata->instrument[channel->instrument-1];
+ else
+ channel->playing->instrument = NULL;
+ channel->playing->env_instrument = channel->playing->instrument;
+ channel->playing->sampnum = channel->sample;
+ channel->playing->instnum = channel->instrument;
+ channel->playing->declick_stage = 0;
+ channel->playing->channel_volume = channel->channelvolume;
+ channel->playing->note = channel->truenote;
+ channel->playing->enabled_envelopes = 0;
+ channel->playing->volume_offset = 0;
+ channel->playing->panning_offset = 0;
+ //channel->playing->output = channel->output;
+ if (sigdata->flags & IT_USE_INSTRUMENTS) {+ IT_PLAYING * playing = channel->playing;
+ IT_INSTRUMENT * instrument = playing->instrument;
+ if (instrument->volume_envelope.flags & IT_ENVELOPE_ON) playing->enabled_envelopes |= IT_ENV_VOLUME;
+ if (instrument->pan_envelope.flags & IT_ENVELOPE_ON) playing->enabled_envelopes |= IT_ENV_PANNING;
+ if (instrument->pitch_envelope.flags & IT_ENVELOPE_ON) playing->enabled_envelopes |= IT_ENV_PITCH;
+ if (instrument->random_volume) playing->volume_offset = (rand() % (instrument->random_volume * 2 + 1)) - instrument->random_volume;
+ if (instrument->random_pan) playing->panning_offset = (rand() % (instrument->random_pan * 2 + 1)) - instrument->random_pan;
+ //if (instrument->output) playing->output = instrument->output;
+ }
+ channel->playing->filter_cutoff = 127;
+ channel->playing->filter_resonance = 0;
+ channel->playing->true_filter_cutoff = 127 << 8;
+ channel->playing->true_filter_resonance = 0;
+ channel->playing->vibrato_speed = 0;
+ channel->playing->vibrato_depth = 0;
+ channel->playing->vibrato_n = 0;
+ channel->playing->vibrato_time = 0;
+ channel->playing->vibrato_waveform = channel->vibrato_waveform;
+ channel->playing->tremolo_speed = 0;
+ channel->playing->tremolo_depth = 0;
+ channel->playing->tremolo_time = 0;
+ channel->playing->tremolo_waveform = channel->tremolo_waveform;
+ channel->playing->panbrello_speed = 0;
+ channel->playing->panbrello_depth = 0;
+ channel->playing->panbrello_time = 0;
+ channel->playing->panbrello_waveform = channel->panbrello_waveform;
+ channel->playing->panbrello_random = 0;
+ channel->playing->sample_vibrato_time = 0;
+ channel->playing->sample_vibrato_waveform = channel->playing->sample->vibrato_waveform;
+ channel->playing->sample_vibrato_depth = 0;
+ channel->playing->slide = 0;
+ channel->playing->finetune = channel->playing->sample->finetune;
+
+ if (sigdata->flags & IT_USE_INSTRUMENTS)
+ {+ if (envelopes_copied && channel->playing->env_instrument->volume_envelope.flags & IT_ENVELOPE_CARRY) {+ channel->playing->volume_envelope.tick = vol_env_tick;
+ } else {+ channel->playing->volume_envelope.tick = 0;
+ }
+ if (envelopes_copied && channel->playing->env_instrument->pan_envelope.flags & IT_ENVELOPE_CARRY) {+ channel->playing->pan_envelope.tick = pan_env_tick;
+ } else {+ channel->playing->pan_envelope.tick = 0;
+ }
+ if (envelopes_copied && channel->playing->env_instrument->pitch_envelope.flags & IT_ENVELOPE_CARRY) {+ channel->playing->pitch_envelope.tick = pitch_env_tick;
+ } else {+ channel->playing->pitch_envelope.tick = 0;
+ }
+ recalculate_it_envelope_nodes(channel->playing);
+ }
+ channel->playing->fadeoutcount = 1024;
+ it_reset_filter_state(&channel->playing->filter_state[0]);
+ it_reset_filter_state(&channel->playing->filter_state[1]);
+ it_playing_reset_resamplers(channel->playing, 0);
+
+ /** WARNING - is everything initialised? */
+}
+
+
+
+static void get_default_volpan(DUMB_IT_SIGDATA *sigdata, IT_CHANNEL *channel)
+{+ if (channel->sample == 0)
+ return;
+
+ channel->volume = sigdata->sample[channel->sample-1].default_volume;
+
+ if (sigdata->flags & IT_WAS_AN_XM) {+ if (!(sigdata->flags & IT_WAS_A_MOD))
+ channel->truepan = 32 + sigdata->sample[channel->sample-1].default_pan*64;
+ return;
+ }
+
+ {+ int pan = sigdata->sample[channel->sample-1].default_pan;
+ if (pan >= 128 && pan <= 192) {+ channel->pan = pan - 128;
+ return;
+ }
+ }
+
+ if (sigdata->flags & IT_USE_INSTRUMENTS) {+ IT_INSTRUMENT *instrument = &sigdata->instrument[channel->instrument-1];
+ if (instrument->default_pan <= 64)
+ channel->pan = instrument->default_pan;
+ if (instrument->filter_cutoff >= 128)
+ channel->filter_cutoff = instrument->filter_cutoff - 128;
+ if (instrument->filter_resonance >= 128)
+ channel->filter_resonance = instrument->filter_resonance - 128;
+ }
+}
+
+
+
+static void get_true_pan(DUMB_IT_SIGDATA *sigdata, IT_CHANNEL *channel)
+{+ channel->truepan = channel->pan << IT_ENVELOPE_SHIFT;
+
+ if (channel->sample && !IT_IS_SURROUND_SHIFTED(channel->truepan) && (sigdata->flags & IT_USE_INSTRUMENTS)) {+ IT_INSTRUMENT *instrument = &sigdata->instrument[channel->instrument-1];
+ int truepan = channel->truepan;
+ truepan += (channel->note - instrument->pp_centre) * instrument->pp_separation << (IT_ENVELOPE_SHIFT - 3);
+ channel->truepan = (unsigned short)MID(0, truepan, 64 << IT_ENVELOPE_SHIFT);
+ }
+}
+
+
+
+static void post_process_it_volpan(DUMB_IT_SIGRENDERER *sigrenderer, IT_ENTRY *entry)
+{+ IT_CHANNEL *channel = &sigrenderer->channel[(int)entry->channel];
+
+ if (entry->mask & IT_ENTRY_VOLPAN) {+ if (entry->volpan <= 84) {+ /* Volume */
+ /* Fine volume slide up */
+ /* Fine volume slide down */
+ } else if (entry->volpan <= 94) {+ /* Volume slide up */
+ unsigned char v = entry->volpan - 85;
+ if (v == 0)
+ v = channel->lastvolslide;
+ channel->lastvolslide = v;
+ /* = effect Dx0 where x == entry->volpan - 85 */
+ channel->volslide += v;
+ } else if (entry->volpan <= 104) {+ /* Volume slide down */
+ unsigned char v = entry->volpan - 95;
+ if (v == 0)
+ v = channel->lastvolslide;
+ channel->lastvolslide = v;
+ /* = effect D0x where x == entry->volpan - 95 */
+ channel->volslide -= v;
+ } else if (entry->volpan <= 114) {+ /* Portamento down */
+ unsigned char v = (entry->volpan - 105) << 2;
+ if (v == 0)
+ v = channel->lastEF;
+ channel->lastEF = v;
+ channel->portamento -= v << 4;
+ } else if (entry->volpan <= 124) {+ /* Portamento up */
+ unsigned char v = (entry->volpan - 115) << 2;
+ if (v == 0)
+ v = channel->lastEF;
+ channel->lastEF = v;
+ channel->portamento += v << 4;
+ } else if (entry->volpan <= 202) {+ /* Pan */
+ /* Tone Portamento */
+ } else if (entry->volpan <= 212) {+ /* Vibrato */
+ /* This is unaffected by IT_OLD_EFFECTS. However, if v == 0, then any doubling of depth that happened before (with Hxy in the effect column) will be preserved. */
+ unsigned char v = entry->volpan - 203;
+ if (v == 0)
+ v = channel->lastHdepth;
+ else {+ v <<= 2;
+ channel->lastHdepth = v;
+ }
+ if (channel->playing) {+ channel->playing->vibrato_speed = channel->lastHspeed;
+ channel->playing->vibrato_depth = v;
+ channel->playing->vibrato_n++;
+ }
+ }
+ }
+}
+
+
+
+static void it_send_midi(DUMB_IT_SIGRENDERER *sigrenderer, IT_CHANNEL *channel, unsigned char midi_byte)
+{+ if (sigrenderer->callbacks->midi)
+ if ((*sigrenderer->callbacks->midi)(sigrenderer->callbacks->midi_data, (int)(channel - sigrenderer->channel), midi_byte))
+ return;
+
+ switch (channel->midi_state) {+ case 4: /* Ready to receive resonance parameter */
+ if (midi_byte < 0x80) channel->filter_resonance = midi_byte;
+ channel->midi_state = 0;
+ break;
+ case 3: /* Ready to receive cutoff parameter */
+ if (midi_byte < 0x80) channel->filter_cutoff = midi_byte;
+ channel->midi_state = 0;
+ break;
+ case 2: /* Ready for byte specifying which parameter will follow */
+ if (midi_byte == 0) /* Cutoff */
+ channel->midi_state = 3;
+ else if (midi_byte == 1) /* Resonance */
+ channel->midi_state = 4;
+ else
+ channel->midi_state = 0;
+ break;
+ default: /* Counting initial F0 bytes */
+ switch (midi_byte) {+ case 0xF0:
+ channel->midi_state++;
+ break;
+ case 0xFA:
+ case 0xFC:
+ case 0xFF:
+ /* Reset filter parameters for all channels */
+ {+ int i;
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {+ sigrenderer->channel[i].filter_cutoff = 127;
+ sigrenderer->channel[i].filter_resonance = 0;
+ //// should we be resetting channel[i].playing->filter_* here?
+ }
+ }
+ /* Fall through */
+ default:
+ channel->midi_state = 0;
+ break;
+ }
+ }
+}
+
+
+
+static void xm_envelope_calculate_value(IT_ENVELOPE *envelope, IT_PLAYING_ENVELOPE *pe)
+{+ if (pe->next_node <= 0)
+ pe->value = envelope->node_y[0] << IT_ENVELOPE_SHIFT;
+ else if (pe->next_node >= envelope->n_nodes)
+ pe->value = envelope->node_y[envelope->n_nodes-1] << IT_ENVELOPE_SHIFT;
+ else {+ int ys = envelope->node_y[pe->next_node-1] << IT_ENVELOPE_SHIFT;
+ int ts = envelope->node_t[pe->next_node-1];
+ int te = envelope->node_t[pe->next_node];
+
+ if (ts == te)
+ pe->value = ys;
+ else {+ int ye = envelope->node_y[pe->next_node] << IT_ENVELOPE_SHIFT;
+ int t = pe->tick;
+
+ pe->value = ys + (ye - ys) * (t - ts) / (te - ts);
+ }
+ }
+}
+
+
+
+extern const char xm_convert_vibrato[];
+
+const char mod_convert_vibrato[] = {+ IT_VIBRATO_SINE,
+ IT_VIBRATO_RAMP_UP, /* this will be inverted by IT_OLD_EFFECTS */
+ IT_VIBRATO_XM_SQUARE,
+ IT_VIBRATO_XM_SQUARE
+};
+
+/* Returns 1 if a callback caused termination of playback. */
+static int process_effects(DUMB_IT_SIGRENDERER *sigrenderer, IT_ENTRY *entry, int ignore_cxx)
+{+ DUMB_IT_SIGDATA *sigdata = sigrenderer->sigdata;
+ IT_PLAYING *playing;
+ int i;
+
+ IT_CHANNEL *channel = &sigrenderer->channel[(int)entry->channel];
+
+ if (entry->mask & IT_ENTRY_EFFECT) {+ switch (entry->effect) {+/*
+Notes about effects (as compared to other module formats)
+
+C This is now in *HEX*. (Used to be in decimal in ST3)
+E/F/G/H/U You need to check whether the song uses Amiga/Linear slides.
+H/U Vibrato in Impulse Tracker is two times finer than in
+ any other tracker and is updated EVERY tick.
+ If "Old Effects" is *ON*, then the vibrato is played in the
+ normal manner (every non-row tick and normal depth)
+E/F/G These commands ALL share the same memory.
+Oxx Offsets to samples are to the 'xx00th' SAMPLE. (ie. for
+ 16 bit samples, the offset is xx00h*2)
+ Oxx past the sample end will be ignored, unless "Old Effects"
+ is ON, in which case the Oxx will play from the end of the
+ sample.
+Yxy This uses a table 4 times larger (hence 4 times slower) than
+ vibrato or tremelo. If the waveform is set to random, then
+ the 'speed' part of the command is interpreted as a delay.
+*/
+ case IT_SET_SPEED:
+ if (entry->effectvalue)
+ {+ /*if (entry->effectvalue == 255)
+ if (sigrenderer->callbacks->xm_speed_zero && (*sigrenderer->callbacks->xm_speed_zero)(sigrenderer->callbacks->xm_speed_zero_data))
+ return 1;*/
+ if (sigdata->flags & IT_WAS_AN_STM) {+ int n = entry->effectvalue;
+ if (n >= 32) {+ sigrenderer->tick = sigrenderer->speed = n;
+ }
+ } else {+ sigrenderer->tick = sigrenderer->speed = entry->effectvalue;
+ }
+ }
+ else if ((sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_MOD)) == IT_WAS_AN_XM) {+#ifdef BIT_ARRAY_BULLSHIT
+ bit_array_set(sigrenderer->played, sigrenderer->order * 256 + sigrenderer->row);
+#endif
+ sigrenderer->speed = 0;
+#ifdef BIT_ARRAY_BULLSHIT
+ sigrenderer->looped = 1;
+#endif
+ if (sigrenderer->callbacks->xm_speed_zero && (*sigrenderer->callbacks->xm_speed_zero)(sigrenderer->callbacks->xm_speed_zero_data))
+ return 1;
+ }
+ break;
+
+ case IT_BREAK_TO_ROW:
+ if (ignore_cxx) break;
+ sigrenderer->breakrow = entry->effectvalue;
+ /* XXX jump and break on the same row */
+ if ( ( ( sigrenderer->processrow | 0xC00 ) == 0xFFFE ) &&
+ ! ( sigrenderer->processrow & 0x400 ) ) {+ sigrenderer->processrow = 0xFFFE & ~0xC00;
+ } else {+ sigrenderer->processorder = sigrenderer->order;
+ sigrenderer->processrow = 0xFFFE & ~0x800;
+ }
+ break;
+
+ case IT_VOLSLIDE_VIBRATO:
+ for (i = -1; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (i < 0) playing = channel->playing;
+ else {+ playing = sigrenderer->playing[i];
+ if (!playing || playing->channel != channel) continue;
+ }
+ if (playing) {+ playing->vibrato_speed = channel->lastHspeed;
+ playing->vibrato_depth = channel->lastHdepth;
+ playing->vibrato_n++;
+ }
+ }
+ /* Fall through and process volume slide. */
+ case IT_VOLUME_SLIDE:
+ case IT_VOLSLIDE_TONEPORTA:
+ /* The tone portamento component is handled elsewhere. */
+ {+ unsigned char v = entry->effectvalue;
+ if (!(sigdata->flags & IT_WAS_A_MOD)) {+ if (v == 0)
+ v = channel->lastDKL;
+ channel->lastDKL = v;
+ }
+ if (!(sigdata->flags & IT_WAS_AN_XM)) {+ int clip = (sigdata->flags & IT_WAS_AN_S3M) ? 63 : 64;
+ if ((v & 0x0F) == 0x0F) {+ if (!(v & 0xF0)) {+ channel->volslide = -15;
+ channel->volume -= 15;
+ if (channel->volume > clip) channel->volume = 0;
+ } else {+ channel->volume += v >> 4;
+ if (channel->volume > clip) channel->volume = clip;
+ }
+ } else if ((v & 0xF0) == 0xF0) {+ if (!(v & 0x0F)) {+ channel->volslide = 15;
+ channel->volume += 15;
+ if (channel->volume > clip) channel->volume = clip;
+ } else {+ channel->volume -= v & 15;
+ if (channel->volume > clip) channel->volume = 0;
+ }
+ } else if (!(v & 0x0F)) {+ channel->volslide = v >> 4;
+ } else {+ channel->volslide = -(v & 15);
+ }
+ } else {+ if ((v & 0x0F) == 0) { /* Dx0 */+ channel->volslide = v >> 4;
+ } else if ((v & 0xF0) == 0) { /* D0x */+ channel->volslide = -v;
+ } else if ((v & 0x0F) == 0x0F) { /* DxF */+ channel->volume += v >> 4;
+ if (channel->volume > 64) channel->volume = 64;
+ } else if ((v & 0xF0) == 0xF0) { /* DFx */+ channel->volume -= v & 15;
+ if (channel->volume > 64) channel->volume = 0;
+ }
+ }
+ }
+ break;
+ case IT_XM_FINE_VOLSLIDE_DOWN:
+ {+ unsigned char v = entry->effectvalue;
+ if (v == 0)
+ v = channel->xm_lastEB;
+ channel->xm_lastEB = v;
+ channel->volume -= v;
+ if (channel->volume > 64) channel->volume = 0;
+ }
+ break;
+ case IT_XM_FINE_VOLSLIDE_UP:
+ {+ unsigned char v = entry->effectvalue;
+ if (v == 0)
+ v = channel->xm_lastEA;
+ channel->xm_lastEA = v;
+ channel->volume += v;
+ if (channel->volume > 64) channel->volume = 64;
+ }
+ break;
+ case IT_PORTAMENTO_DOWN:
+ {+ unsigned char v = entry->effectvalue;
+ if (sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_669)) {+ if (!(sigdata->flags & IT_WAS_A_MOD)) {+ if (v == 0xF0)
+ v |= channel->xm_lastE2;
+ else if (v >= 0xF0)
+ channel->xm_lastE2 = v & 15;
+ else if (v == 0xE0)
+ v |= channel->xm_lastX2;
+ else
+ channel->xm_lastX2 = v & 15;
+ }
+ } else if (sigdata->flags & IT_WAS_AN_S3M) {+ if (v == 0)
+ v = channel->lastDKL;
+ channel->lastDKL = v;
+ } else {+ if (v == 0)
+ v = channel->lastEF;
+ channel->lastEF = v;
+ }
+ for (i = -1; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (i < 0) playing = channel->playing;
+ else {+ playing = sigrenderer->playing[i];
+ if (!playing || playing->channel != channel) continue;
+ }
+ if (playing) {+ if ((v & 0xF0) == 0xF0)
+ playing->slide -= (v & 15) << 4;
+ else if ((v & 0xF0) == 0xE0)
+ playing->slide -= (v & 15) << 2;
+ else if (i < 0 && sigdata->flags & IT_WAS_A_669)
+ channel->portamento -= v << 3;
+ else if (i < 0)
+ channel->portamento -= v << 4;
+ }
+ }
+ }
+ break;
+ case IT_PORTAMENTO_UP:
+ {+ unsigned char v = entry->effectvalue;
+ if (sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_669)) {+ if (!(sigdata->flags & IT_WAS_A_MOD)) {+ if (v == 0xF0)
+ v |= channel->xm_lastE1;
+ else if (v >= 0xF0)
+ channel->xm_lastE1 = v & 15;
+ else if (v == 0xE0)
+ v |= channel->xm_lastX1;
+ else
+ channel->xm_lastX1 = v & 15;
+ }
+ } else if (sigdata->flags & IT_WAS_AN_S3M) {+ if (v == 0)
+ v = channel->lastDKL;
+ channel->lastDKL = v;
+ } else {+ if (v == 0)
+ v = channel->lastEF;
+ channel->lastEF = v;
+ }
+ for (i = -1; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (i < 0) playing = channel->playing;
+ else {+ playing = sigrenderer->playing[i];
+ if (!playing || playing->channel != channel) continue;
+ }
+ if (playing) {+ if ((v & 0xF0) == 0xF0)
+ playing->slide += (v & 15) << 4;
+ else if ((v & 0xF0) == 0xE0)
+ playing->slide += (v & 15) << 2;
+ else if (i < 0 && sigdata->flags & IT_WAS_A_669)
+ channel->portamento += v << 3;
+ else if (i < 0)
+ channel->portamento += v << 4;
+ }
+ }
+ }
+ break;
+ case IT_XM_PORTAMENTO_DOWN:
+ {+ unsigned char v = entry->effectvalue;
+ if (!(sigdata->flags & IT_WAS_A_MOD)) {+ if (v == 0)
+ v = channel->lastJ;
+ channel->lastJ = v;
+ }
+ if (channel->playing)
+ channel->portamento -= v << 4;
+ }
+ break;
+ case IT_XM_PORTAMENTO_UP:
+ {+ unsigned char v = entry->effectvalue;
+ if (!(sigdata->flags & IT_WAS_A_MOD)) {+ if (v == 0)
+ v = channel->lastEF;
+ channel->lastEF = v;
+ }
+ if (channel->playing)
+ channel->portamento += v << 4;
+ }
+ break;
+ case IT_XM_KEY_OFF:
+ channel->key_off_count = entry->effectvalue;
+ if (!channel->key_off_count) xm_note_off(sigdata, channel);
+ break;
+ case IT_VIBRATO:
+ {+ if (entry->effectvalue || !(sigdata->flags & IT_WAS_A_669)) {+ unsigned char speed = entry->effectvalue >> 4;
+ unsigned char depth = entry->effectvalue & 15;
+ if (speed == 0)
+ speed = channel->lastHspeed;
+ channel->lastHspeed = speed;
+ if (depth == 0)
+ depth = channel->lastHdepth;
+ else {+ if (sigdata->flags & IT_OLD_EFFECTS && !(sigdata->flags & IT_WAS_A_MOD))
+ depth <<= 3;
+ else
+ depth <<= 2;
+ channel->lastHdepth = depth;
+ }
+ for (i = -1; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (i < 0) playing = channel->playing;
+ else {+ playing = sigrenderer->playing[i];
+ if (!playing || playing->channel != channel) continue;
+ }
+ if (playing) {+ playing->vibrato_speed = speed;
+ playing->vibrato_depth = depth;
+ playing->vibrato_n++;
+ }
+ }
+ }
+ }
+ break;
+ case IT_TREMOR:
+ {+ unsigned char v = entry->effectvalue;
+ if (v == 0) {+ if (sigdata->flags & IT_WAS_AN_S3M)
+ v = channel->lastDKL;
+ else
+ v = channel->lastI;
+ }
+ else if (!(sigdata->flags & IT_OLD_EFFECTS)) {+ if (v & 0xF0) v -= 0x10;
+ if (v & 0x0F) v -= 0x01;
+ }
+ if (sigdata->flags & IT_WAS_AN_S3M)
+ channel->lastDKL = v;
+ else
+ channel->lastI = v;
+ channel->tremor_time |= 128;
+ }
+ update_tremor(channel);
+ break;
+ case IT_ARPEGGIO:
+ {+ unsigned char v = entry->effectvalue;
+ /* XM files have no memory for arpeggio (000 = no effect)
+ * and we use lastJ for portamento down instead.
+ */
+ if (!(sigdata->flags & IT_WAS_AN_XM)) {+ if (sigdata->flags & IT_WAS_AN_S3M) {+ if (v == 0)
+ v = channel->lastDKL;
+ channel->lastDKL = v;
+ } else {+ if (v == 0)
+ v = channel->lastJ;
+ channel->lastJ = v;
+ }
+ }
+ channel->arpeggio_offsets[0] = 0;
+ channel->arpeggio_offsets[1] = (v & 0xF0) >> 4;
+ channel->arpeggio_offsets[2] = (v & 0x0F);
+ channel->arpeggio_table = (const unsigned char *)(((sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_MOD))==IT_WAS_AN_XM) ? &arpeggio_xm : &arpeggio_mod);
+ }
+ break;
+ case IT_SET_CHANNEL_VOLUME:
+ if (sigdata->flags & IT_WAS_AN_XM)
+ channel->volume = MIN(entry->effectvalue, 64);
+ else if (entry->effectvalue <= 64)
+ channel->channelvolume = entry->effectvalue;
+#ifdef VOLUME_OUT_OF_RANGE_SETS_MAXIMUM
+ else
+ channel->channelvolume = 64;
+#endif
+ if (channel->playing)
+ channel->playing->channel_volume = channel->channelvolume;
+ break;
+ case IT_CHANNEL_VOLUME_SLIDE:
+ {+ unsigned char v = entry->effectvalue;
+ if (v == 0)
+ v = channel->lastN;
+ channel->lastN = v;
+ if ((v & 0x0F) == 0) { /* Nx0 */+ channel->channelvolslide = v >> 4;
+ } else if ((v & 0xF0) == 0) { /* N0x */+ channel->channelvolslide = -v;
+ } else {+ if ((v & 0x0F) == 0x0F) { /* NxF */+ channel->channelvolume += v >> 4;
+ if (channel->channelvolume > 64) channel->channelvolume = 64;
+ } else if ((v & 0xF0) == 0xF0) { /* NFx */+ channel->channelvolume -= v & 15;
+ if (channel->channelvolume > 64) channel->channelvolume = 0;
+ } else
+ break;
+ if (channel->playing)
+ channel->playing->channel_volume = channel->channelvolume;
+ }
+ }
+ break;
+ case IT_SET_SAMPLE_OFFSET:
+ {+ unsigned char v = entry->effectvalue;
+ /*if (sigdata->flags & IT_WAS_A_MOD) {+ if (v == 0) break;
+ } else*/ {+ if (v == 0)
+ v = channel->lastO;
+ channel->lastO = v;
+ }
+ /* Note: we set the offset even if tone portamento is
+ * specified. Impulse Tracker does the same.
+ */
+ if (entry->mask & IT_ENTRY_NOTE) {+ if (channel->playing) {+ int offset = ((int)channel->high_offset << 16) | ((int)v << 8);
+ IT_PLAYING *playing = channel->playing;
+ IT_SAMPLE *sample = playing->sample;
+ int end;
+ if ((sample->flags & IT_SAMPLE_SUS_LOOP) && !(playing->flags & IT_PLAYING_SUSTAINOFF))
+ end = (int)sample->sus_loop_end;
+ else if (sample->flags & IT_SAMPLE_LOOP)
+ end = (int)sample->loop_end;
+ else {+ end = (int)sample->length;
+ if ( sigdata->flags & IT_WAS_PROCESSED && end > 64 ) // XXX bah damn LPC and edge case modules
+ end -= 64;
+ }
+ if ((sigdata->flags & IT_WAS_A_PTM) && (sample->flags & IT_SAMPLE_16BIT))
+ offset >>= 1;
+ if (offset < end) {+ it_playing_reset_resamplers(playing, offset);
+ playing->declick_stage = 0;
+ } else if (sigdata->flags & IT_OLD_EFFECTS) {+ it_playing_reset_resamplers(playing, end);
+ playing->declick_stage = 0;
+ }
+ }
+ }
+ }
+ break;
+ case IT_PANNING_SLIDE:
+ /** JULIEN: guess what? the docs are wrong! (how unusual ;)
+ * Pxy seems to memorize its previous value... and there
+ * might be other mistakes like that... (sigh!)
+ */
+ /** ENTHEH: umm... but... the docs say that Pxy memorises its
+ * value... don't they? :o
+ */
+ {+ unsigned char v = entry->effectvalue;
+ int p = channel->truepan;
+ if (sigdata->flags & IT_WAS_AN_XM)
+ {+ if (IT_IS_SURROUND(channel->pan))
+ {+ channel->pan = 32;
+ p = 32 + 128 * 64;
+ }
+ p >>= 6;
+ }
+ else {+ if (IT_IS_SURROUND(channel->pan)) p = 32 << 8;
+ p = (p + 128) >> 8;
+ channel->pan = p;
+ }
+ if (v == 0)
+ v = channel->lastP;
+ channel->lastP = v;
+ if ((v & 0x0F) == 0) { /* Px0 */+ channel->panslide = -(v >> 4);
+ } else if ((v & 0xF0) == 0) { /* P0x */+ channel->panslide = v;
+ } else if ((v & 0x0F) == 0x0F) { /* PxF */+ p -= v >> 4;
+ } else if ((v & 0xF0) == 0xF0) { /* PFx */+ p += v & 15;
+ }
+ if (sigdata->flags & IT_WAS_AN_XM)
+ channel->truepan = 32 + MID(0, p, 255) * 64;
+ else {+ if (p < 0) p = 0;
+ else if (p > 64) p = 64;
+ channel->pan = p;
+ channel->truepan = p << 8;
+ }
+ }
+ break;
+ case IT_RETRIGGER_NOTE:
+ {+ unsigned char v = entry->effectvalue;
+ if (sigdata->flags & IT_WAS_AN_XM) {+ if ((v & 0x0F) == 0) v |= channel->lastQ & 0x0F;
+ if ((v & 0xF0) == 0) v |= channel->lastQ & 0xF0;
+ channel->lastQ = v;
+ } else if (sigdata->flags & IT_WAS_AN_S3M) {+ if (v == 0)
+ v = channel->lastDKL;
+ channel->lastDKL = v;
+ } else {+ if (v == 0)
+ v = channel->lastQ;
+ channel->lastQ = v;
+ }
+ if ((v & 0x0F) == 0) v |= 0x01;
+ channel->retrig = v;
+ if (entry->mask & IT_ENTRY_NOTE) {+ channel->retrig_tick = v & 0x0F;
+ /* Emulate a bug */
+ if (sigdata->flags & IT_WAS_AN_XM)
+ update_retrig(sigrenderer, channel);
+ } else
+ update_retrig(sigrenderer, channel);
+ }
+ break;
+ case IT_XM_RETRIGGER_NOTE:
+ channel->retrig_tick = channel->xm_retrig = entry->effectvalue;
+ if (entry->effectvalue == 0)
+ if (channel->playing) {+ it_playing_reset_resamplers(channel->playing, 0);
+ channel->playing->declick_stage = 0;
+ }
+ break;
+ case IT_TREMOLO:
+ {+ unsigned char speed, depth;
+ if (sigdata->flags & IT_WAS_AN_S3M) {+ unsigned char v = entry->effectvalue;
+ if (v == 0)
+ v = channel->lastDKL;
+ channel->lastDKL = v;
+ speed = v >> 4;
+ depth = v & 15;
+ } else {+ speed = entry->effectvalue >> 4;
+ depth = entry->effectvalue & 15;
+ if (speed == 0)
+ speed = channel->lastRspeed;
+ channel->lastRspeed = speed;
+ if (depth == 0)
+ depth = channel->lastRdepth;
+ channel->lastRdepth = depth;
+ }
+ for (i = -1; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (i < 0) playing = channel->playing;
+ else {+ playing = sigrenderer->playing[i];
+ if (!playing || playing->channel != channel) continue;
+ }
+ if (playing) {+ playing->tremolo_speed = speed;
+ playing->tremolo_depth = depth;
+ }
+ }
+ }
+ break;
+ case IT_S:
+ {+ /* channel->lastS was set in update_pattern_variables(). */
+ unsigned char effectvalue = channel->lastS;
+ switch (effectvalue >> 4) {+ //case IT_S_SET_FILTER:
+ /* Waveforms for commands S3x, S4x and S5x:
+ * 0: Sine wave
+ * 1: Ramp down
+ * 2: Square wave
+ * 3: Random wave
+ */
+ case IT_S_SET_GLISSANDO_CONTROL:
+ channel->glissando = effectvalue & 15;
+ break;
+
+ case IT_S_FINETUNE:
+ if (channel->playing) {+ channel->playing->finetune = ((int)(effectvalue & 15) - 8) << 5;
+ }
+ break;
+
+ case IT_S_SET_VIBRATO_WAVEFORM:
+ {+ int waveform = effectvalue & 3;
+ if (sigdata->flags & IT_WAS_A_MOD) waveform = mod_convert_vibrato[waveform];
+ else if (sigdata->flags & IT_WAS_AN_XM) waveform = xm_convert_vibrato[waveform];
+ channel->vibrato_waveform = waveform;
+ if (channel->playing) {+ channel->playing->vibrato_waveform = waveform;
+ if (!(effectvalue & 4))
+ channel->playing->vibrato_time = 0;
+ }
+ }
+ break;
+ case IT_S_SET_TREMOLO_WAVEFORM:
+ {+ int waveform = effectvalue & 3;
+ if (sigdata->flags & IT_WAS_A_MOD) waveform = mod_convert_vibrato[waveform];
+ else if (sigdata->flags & IT_WAS_AN_XM) waveform = xm_convert_vibrato[waveform];
+ channel->tremolo_waveform = waveform;
+ if (channel->playing) {+ channel->playing->tremolo_waveform = waveform;
+ if (!(effectvalue & 4))
+ channel->playing->tremolo_time = 0;
+ }
+ }
+ break;
+ case IT_S_SET_PANBRELLO_WAVEFORM:
+ channel->panbrello_waveform = effectvalue & 3;
+ if (channel->playing) {+ channel->playing->panbrello_waveform = effectvalue & 3;
+ if (!(effectvalue & 4))
+ channel->playing->panbrello_time = 0;
+ }
+ break;
+
+ case IT_S_FINE_PATTERN_DELAY:
+ sigrenderer->tick += effectvalue & 15;
+ break;
+#if 1
+ case IT_S7:
+ {+ if (sigrenderer->sigdata->flags & IT_USE_INSTRUMENTS)
+ {+ int i;
+ switch (effectvalue & 15)
+ {+ case 0: /* cut background notes */
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++)
+ {+ IT_PLAYING * playing = sigrenderer->playing[i];
+ if (playing && channel == playing->channel)
+ {+ playing->declick_stage = 3;
+ if (channel->playing == playing) channel->playing = NULL;
+ }
+ }
+ break;
+ case 1: /* release background notes */
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++)
+ {+ IT_PLAYING * playing = sigrenderer->playing[i];
+ if (playing && channel == playing->channel && !(playing->flags & IT_PLAYING_SUSTAINOFF))
+ {+ it_note_off(playing);
+ }
+ }
+ break;
+ case 2: /* fade background notes */
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++)
+ {+ IT_PLAYING * playing = sigrenderer->playing[i];
+ if (playing && channel == playing->channel)
+ {+ //playing->flags &= IT_PLAYING_SUSTAINOFF;
+ playing->flags |= IT_PLAYING_FADING;
+ }
+ }
+ break;
+ case 3:
+ channel->new_note_action = NNA_NOTE_CUT;
+ break;
+ case 4:
+ channel->new_note_action = NNA_NOTE_CONTINUE;
+ break;
+ case 5:
+ channel->new_note_action = NNA_NOTE_OFF;
+ break;
+ case 6:
+ channel->new_note_action = NNA_NOTE_FADE;
+ break;
+
+ case 7:
+ if (channel->playing)
+ channel->playing->enabled_envelopes &= ~IT_ENV_VOLUME;
+ break;
+ case 8:
+ if (channel->playing)
+ channel->playing->enabled_envelopes |= IT_ENV_VOLUME;
+ break;
+
+ case 9:
+ if (channel->playing)
+ channel->playing->enabled_envelopes &= ~IT_ENV_PANNING;
+ break;
+ case 10:
+ if (channel->playing)
+ channel->playing->enabled_envelopes |= IT_ENV_PANNING;
+ break;
+
+ case 11:
+ if (channel->playing)
+ channel->playing->enabled_envelopes &= ~IT_ENV_PITCH;
+ break;
+ case 12:
+ if (channel->playing)
+ channel->playing->enabled_envelopes |= IT_ENV_PITCH;
+ break;
+ }
+ }
+ }
+ break;
+#endif
+ case IT_S_SET_PAN:
+ //ASSERT(!(sigdata->flags & IT_WAS_AN_XM));
+ channel->pan =
+ ((effectvalue & 15) << 2) |
+ ((effectvalue & 15) >> 2);
+ channel->truepan = channel->pan << IT_ENVELOPE_SHIFT;
+
+ if (channel->playing)
+ channel->playing->panbrello_depth = 0;
+ break;
+ case IT_S_SET_SURROUND_SOUND:
+ if ((effectvalue & 15) == 15) {+ if (channel->playing && channel->playing->sample &&
+ !(channel->playing->sample->flags & (IT_SAMPLE_LOOP | IT_SAMPLE_SUS_LOOP))) {+ channel->playing->flags |= IT_PLAYING_REVERSE;
+ it_playing_reset_resamplers( channel->playing, channel->playing->sample->length - 1 );
+ }
+ } else if ((effectvalue & 15) == 1) {+ channel->pan = IT_SURROUND;
+ channel->truepan = channel->pan << IT_ENVELOPE_SHIFT;
+ }
+ if (channel->playing)
+ channel->playing->panbrello_depth = 0;
+ break;
+ case IT_S_SET_HIGH_OFFSET:
+ channel->high_offset = effectvalue & 15;
+ break;
+ //case IT_S_PATTERN_LOOP:
+ case IT_S_DELAYED_NOTE_CUT:
+ channel->note_cut_count = effectvalue & 15;
+ if (!channel->note_cut_count) {+ if (sigdata->flags & (IT_WAS_AN_XM | IT_WAS_A_PTM))
+ channel->volume = 0;
+ else
+ channel->note_cut_count = 1;
+ }
+ break;
+ case IT_S_SET_MIDI_MACRO:
+ if ((sigdata->flags & (IT_WAS_AN_XM | IT_WAS_A_MOD)) == (IT_WAS_AN_XM | IT_WAS_A_MOD)) {+ channel->inv_loop_speed = effectvalue & 15;
+ update_invert_loop(channel, channel->playing ? channel->playing->sample : NULL);
+ } else channel->SFmacro = effectvalue & 15;
+ break;
+ }
+ }
+ break;
+ case IT_SET_SONG_TEMPO:
+ {+ unsigned char v = entry->effectvalue;
+ if (v == 0)
+ v = channel->lastW;
+ channel->lastW = v;
+ if (v < 0x10)
+ sigrenderer->temposlide = -v;
+ else if (v < 0x20)
+ sigrenderer->temposlide = v & 15;
+ else
+ sigrenderer->tempo = v;
+ }
+ break;
+ case IT_FINE_VIBRATO:
+ {+ unsigned char speed = entry->effectvalue >> 4;
+ unsigned char depth = entry->effectvalue & 15;
+ if (speed == 0)
+ speed = channel->lastHspeed;
+ channel->lastHspeed = speed;
+ if (depth == 0)
+ depth = channel->lastHdepth;
+ else {+ if (sigdata->flags & IT_OLD_EFFECTS)
+ depth <<= 1;
+ channel->lastHdepth = depth;
+ }
+ for (i = -1; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (i < 0) playing = channel->playing;
+ else {+ playing = sigrenderer->playing[i];
+ if (!playing || playing->channel != channel) continue;
+ }
+ if (playing) {+ playing->vibrato_speed = speed;
+ playing->vibrato_depth = depth;
+ playing->vibrato_n++;
+ }
+ }
+ }
+ break;
+ case IT_SET_GLOBAL_VOLUME:
+ if ((sigdata->flags & IT_WAS_AN_S3M) && (entry->effectvalue > 64))
+ break;
+ if (entry->effectvalue <= 128)
+ sigrenderer->globalvolume = entry->effectvalue;
+#ifdef VOLUME_OUT_OF_RANGE_SETS_MAXIMUM
+ else
+ sigrenderer->globalvolume = 128;
+#endif
+ break;
+ case IT_GLOBAL_VOLUME_SLIDE:
+ {+ unsigned char v = entry->effectvalue;
+ if (v == 0)
+ v = channel->lastW;
+ channel->lastW = v;
+ if ((v & 0x0F) == 0) { /* Wx0 */+ sigrenderer->globalvolslide =
+ (sigdata->flags & IT_WAS_AN_XM) ? (v >> 4)*2 : (v >> 4);
+ } else if ((v & 0xF0) == 0) { /* W0x */+ sigrenderer->globalvolslide =
+ (sigdata->flags & IT_WAS_AN_XM) ? (-v)*2 : (-v);
+ } else if ((v & 0x0F) == 0x0F) { /* WxF */+ sigrenderer->globalvolume += v >> 4;
+ if (sigrenderer->globalvolume > 128) sigrenderer->globalvolume = 128;
+ } else if ((v & 0xF0) == 0xF0) { /* WFx */+ sigrenderer->globalvolume -= v & 15;
+ if (sigrenderer->globalvolume > 128) sigrenderer->globalvolume = 0;
+ }
+ }
+ break;
+ case IT_SET_PANNING:
+ if (sigdata->flags & IT_WAS_AN_XM) {+ channel->truepan = 32 + entry->effectvalue*64;
+ } else {+ if (sigdata->flags & IT_WAS_AN_S3M)
+ channel->pan = (entry->effectvalue + 1) >> 1;
+ else
+ channel->pan = (entry->effectvalue + 2) >> 2;
+ channel->truepan = channel->pan << IT_ENVELOPE_SHIFT;
+ }
+ if (channel->playing)
+ channel->playing->panbrello_depth = 0;
+ break;
+ case IT_PANBRELLO:
+ {+ unsigned char speed = entry->effectvalue >> 4;
+ unsigned char depth = entry->effectvalue & 15;
+ if (speed == 0)
+ speed = channel->lastYspeed;
+ channel->lastYspeed = speed;
+ if (depth == 0)
+ depth = channel->lastYdepth;
+ channel->lastYdepth = depth;
+ if (channel->playing) {+ channel->playing->panbrello_speed = speed;
+ channel->playing->panbrello_depth = depth;
+ }
+ }
+ break;
+ case IT_MIDI_MACRO:
+ {+ const IT_MIDI *midi = sigdata->midi ? sigdata->midi : &default_midi;
+ if (entry->effectvalue >= 0x80) {+ int n = midi->Zmacrolen[entry->effectvalue-0x80];
+ int i;
+ for (i = 0; i < n; i++)
+ it_send_midi(sigrenderer, channel, midi->Zmacro[entry->effectvalue-0x80][i]);
+ } else {+ int n = midi->SFmacrolen[channel->SFmacro];
+ int i, j;
+ for (i = 0, j = 1; i < n; i++, j <<= 1)
+ it_send_midi(sigrenderer, channel,
+ (unsigned char)(midi->SFmacroz[channel->SFmacro] & j ?
+ entry->effectvalue : midi->SFmacro[channel->SFmacro][i]));
+ }
+ }
+ break;
+ case IT_XM_SET_ENVELOPE_POSITION:
+ if (channel->playing && channel->playing->env_instrument) {+ IT_ENVELOPE *envelope = &channel->playing->env_instrument->volume_envelope;
+ if (envelope->flags & IT_ENVELOPE_ON) {+ IT_PLAYING_ENVELOPE *pe = &channel->playing->volume_envelope;
+ pe->tick = entry->effectvalue;
+ if (pe->tick >= envelope->node_t[envelope->n_nodes-1])
+ pe->tick = envelope->node_t[envelope->n_nodes-1];
+ pe->next_node = 0;
+ while (pe->tick > envelope->node_t[pe->next_node]) pe->next_node++;
+ xm_envelope_calculate_value(envelope, pe);
+ }
+ }
+ break;
+
+ /* uggly plain portamento for now */
+ case IT_PTM_NOTE_SLIDE_DOWN:
+ case IT_PTM_NOTE_SLIDE_DOWN_RETRIG:
+ {+ channel->toneslide_retrig = (entry->effect == IT_PTM_NOTE_SLIDE_DOWN_RETRIG);
+
+ if (channel->ptm_last_toneslide) {+ channel->toneslide_tick = channel->last_toneslide_tick;
+
+ if (--channel->toneslide_tick == 0) {+ channel->truenote += channel->toneslide;
+ if (channel->truenote >= 120) {+ if (channel->toneslide < 0) channel->truenote = 0;
+ else channel->truenote = 119;
+ }
+ channel->note += channel->toneslide;
+ if (channel->note >= 120) {+ if (channel->toneslide < 0) channel->note = 0;
+ else channel->note = 119;
+ }
+
+ if (channel->playing) {+ if (channel->sample) channel->playing->note = channel->truenote;
+ else channel->playing->note = channel->note;
+ it_playing_reset_resamplers(channel->playing, 0);
+ channel->playing->declick_stage = 0;
+ }
+ }
+ }
+
+ channel->ptm_last_toneslide = 0;
+
+ channel->toneslide = -(entry->effectvalue & 15);
+ channel->ptm_toneslide = (entry->effectvalue & 0xF0) >> 4;
+ channel->toneslide_tick += channel->ptm_toneslide;
+ }
+ break;
+ case IT_PTM_NOTE_SLIDE_UP:
+ case IT_PTM_NOTE_SLIDE_UP_RETRIG:
+ {+ channel->toneslide_retrig = (entry->effect == IT_PTM_NOTE_SLIDE_UP_RETRIG);
+
+ if (channel->ptm_last_toneslide) {+ channel->toneslide_tick = channel->last_toneslide_tick;
+
+ if (--channel->toneslide_tick == 0) {+ channel->truenote += channel->toneslide;
+ if (channel->truenote >= 120) {+ if (channel->toneslide < 0) channel->truenote = 0;
+ else channel->truenote = 119;
+ }
+ channel->note += channel->toneslide;
+ if (channel->note >= 120) {+ if (channel->toneslide < 0) channel->note = 0;
+ else channel->note = 119;
+ }
+
+ if (channel->playing) {+ if (channel->sample) channel->playing->note = channel->truenote;
+ else channel->playing->note = channel->note;
+ it_playing_reset_resamplers(channel->playing, 0);
+ channel->playing->declick_stage = 0;
+ }
+ }
+ }
+
+ channel->ptm_last_toneslide = 0;
+
+ channel->toneslide = -(entry->effectvalue & 15);
+ channel->ptm_toneslide = (entry->effectvalue & 0xF0) >> 4;
+ channel->toneslide_tick += channel->ptm_toneslide;
+ }
+ break;
+
+ case IT_OKT_NOTE_SLIDE_DOWN:
+ case IT_OKT_NOTE_SLIDE_DOWN_ROW:
+ channel->toneslide = -entry->effectvalue;
+ channel->okt_toneslide = (entry->effect == IT_OKT_NOTE_SLIDE_DOWN) ? 255 : 1;
+ break;
+
+ case IT_OKT_NOTE_SLIDE_UP:
+ case IT_OKT_NOTE_SLIDE_UP_ROW:
+ channel->toneslide = entry->effectvalue;
+ channel->okt_toneslide = (entry->effect == IT_OKT_NOTE_SLIDE_UP) ? 255 : 1;
+ break;
+
+ case IT_OKT_ARPEGGIO_3:
+ case IT_OKT_ARPEGGIO_4:
+ case IT_OKT_ARPEGGIO_5:
+ {+ channel->arpeggio_offsets[0] = 0;
+ channel->arpeggio_offsets[1] = -(entry->effectvalue >> 4);
+ channel->arpeggio_offsets[2] = entry->effectvalue & 0x0F;
+
+ switch (entry->effect)
+ {+ case IT_OKT_ARPEGGIO_3:
+ channel->arpeggio_table = (const unsigned char *)&arpeggio_okt_3;
+ break;
+
+ case IT_OKT_ARPEGGIO_4:
+ channel->arpeggio_table = (const unsigned char *)&arpeggio_okt_4;
+ break;
+
+ case IT_OKT_ARPEGGIO_5:
+ channel->arpeggio_table = (const unsigned char *)&arpeggio_okt_5;
+ break;
+ }
+ }
+ break;
+
+ case IT_OKT_VOLUME_SLIDE_DOWN:
+ if ( entry->effectvalue <= 16 ) channel->volslide = -entry->effectvalue;
+ else
+ {+ channel->volume -= entry->effectvalue - 16;
+ if (channel->volume > 64) channel->volume = 0;
+ }
+ break;
+
+ case IT_OKT_VOLUME_SLIDE_UP:
+ if ( entry->effectvalue <= 16 ) channel->volslide = entry->effectvalue;
+ else
+ {+ channel->volume += entry->effectvalue - 16;
+ if (channel->volume > 64) channel->volume = 64;
+ }
+ break;
+ }
+ }
+
+ if (!(sigdata->flags & IT_WAS_AN_XM))
+ post_process_it_volpan(sigrenderer, entry);
+
+ return 0;
+}
+
+
+
+static int process_it_note_data(DUMB_IT_SIGRENDERER *sigrenderer, IT_ENTRY *entry)
+{+ DUMB_IT_SIGDATA *sigdata = sigrenderer->sigdata;
+ IT_CHANNEL *channel = &sigrenderer->channel[(int)entry->channel];
+
+ // When tone portamento and instrument are specified:
+ // If Gxx is off:
+ // - same sample, do nothing but portamento
+ // - diff sample, retrigger all but keep current note+slide + do porta
+ // - if instrument is invalid, nothing; if sample is invalid, cut
+ // If Gxx is on:
+ // - same sample or new sample invalid, retrigger envelopes and initialise note value for portamento to 'seek' to
+ // - diff sample/inst, start using new envelopes
+ // When tone portamento is specified alone, sample won't change.
+ // TODO: consider what happens with instrument alone after all this...
+
+ if (entry->mask & (IT_ENTRY_NOTE | IT_ENTRY_INSTRUMENT)) {+ if (entry->mask & IT_ENTRY_INSTRUMENT)
+ channel->instrument = entry->instrument;
+ instrument_to_sample(sigdata, channel);
+ if (channel->note <= 120) {+ if ((sigdata->flags & IT_USE_INSTRUMENTS) && channel->sample == 0)
+ it_retrigger_note(sigrenderer, channel); /* Stop the note */ /*return 1;*/
+ if (entry->mask & IT_ENTRY_INSTRUMENT)
+ get_default_volpan(sigdata, channel);
+ } else
+ it_retrigger_note(sigrenderer, channel); /* Stop the note */
+ }
+
+ /** WARNING: This is not ideal, since channel->playing might not get allocated owing to lack of memory... */
+ if (((entry->mask & IT_ENTRY_VOLPAN) && entry->volpan >= 193 && entry->volpan <= 202) ||
+ ((entry->mask & IT_ENTRY_EFFECT) && (entry->effect == IT_TONE_PORTAMENTO || entry->effect == IT_VOLSLIDE_TONEPORTA)))
+ {+ if (channel->playing && (entry->mask & IT_ENTRY_INSTRUMENT)) {+ if (sigdata->flags & IT_COMPATIBLE_GXX)
+ it_compatible_gxx_retrigger(sigdata, channel);
+ else if ((!(sigdata->flags & IT_USE_INSTRUMENTS) ||
+ (channel->instrument >= 1 && channel->instrument <= sigdata->n_instruments)) &&
+ channel->sample != channel->playing->sampnum)
+ {+ unsigned char note = channel->playing->note;
+ int slide = channel->playing->slide;
+ it_retrigger_note(sigrenderer, channel);
+ if (channel->playing) {+ channel->playing->note = note;
+ channel->playing->slide = slide;
+ // Should we be preserving sample_vibrato_time? depth?
+ }
+ }
+ }
+
+ channel->toneporta = 0;
+
+ if ((entry->mask & IT_ENTRY_VOLPAN) && entry->volpan >= 193 && entry->volpan <= 202) {+ /* Tone Portamento in the volume column */
+ static const unsigned char slidetable[] = {0, 1, 4, 8, 16, 32, 64, 96, 128, 255};+ unsigned char v = slidetable[entry->volpan - 193];
+ if (sigdata->flags & IT_COMPATIBLE_GXX) {+ if (v == 0)
+ v = channel->lastG;
+ channel->lastG = v;
+ } else {+ if (v == 0)
+ v = channel->lastEF;
+ channel->lastEF = v;
+ }
+ channel->toneporta += v << 4;
+ }
+
+ if ((entry->mask & IT_ENTRY_EFFECT) && (entry->effect == IT_TONE_PORTAMENTO || entry->effect == IT_VOLSLIDE_TONEPORTA)) {+ /* Tone Portamento in the effect column */
+ unsigned char v;
+ if (entry->effect == IT_TONE_PORTAMENTO)
+ v = entry->effectvalue;
+ else
+ v = 0;
+ if (sigdata->flags & IT_COMPATIBLE_GXX) {+ if (v == 0)
+ v = channel->lastG;
+ channel->lastG = v;
+ } else {+ if (v == 0 && !(sigdata->flags & IT_WAS_A_669))
+ v = channel->lastEF;
+ channel->lastEF = v;
+ }
+ channel->toneporta += v << 4;
+ }
+
+ if ((entry->mask & IT_ENTRY_NOTE) || ((sigdata->flags & IT_COMPATIBLE_GXX) && (entry->mask & IT_ENTRY_INSTRUMENT))) {+ if (channel->note <= 120) {+ if (channel->sample)
+ channel->destnote = channel->truenote;
+ else
+ channel->destnote = channel->note;
+ }
+ }
+
+ if (channel->playing) goto skip_start_note;
+ }
+
+ if ((entry->mask & IT_ENTRY_NOTE) ||
+ ((entry->mask & IT_ENTRY_INSTRUMENT) && (!channel->playing || entry->instrument != channel->playing->instnum)))
+ {+ if (channel->note <= 120) {+ get_true_pan(sigdata, channel);
+ if ((entry->mask & IT_ENTRY_NOTE) || !(sigdata->flags & (IT_WAS_AN_S3M|IT_WAS_A_PTM)))
+ it_retrigger_note(sigrenderer, channel);
+ }
+ }
+
+ skip_start_note:
+
+ if (entry->mask & IT_ENTRY_VOLPAN) {+ if (entry->volpan <= 64) {+ /* Volume */
+ channel->volume = entry->volpan;
+ } else if (entry->volpan <= 74) {+ /* Fine volume slide up */
+ unsigned char v = entry->volpan - 65;
+ if (v == 0)
+ v = channel->lastvolslide;
+ channel->lastvolslide = v;
+ /* = effect DxF where x == entry->volpan - 65 */
+ channel->volume += v;
+ if (channel->volume > 64) channel->volume = 64;
+ } else if (entry->volpan <= 84) {+ /* Fine volume slide down */
+ unsigned char v = entry->volpan - 75;
+ if (v == 0)
+ v = channel->lastvolslide;
+ channel->lastvolslide = v;
+ /* = effect DFx where x == entry->volpan - 75 */
+ channel->volume -= v;
+ if (channel->volume > 64) channel->volume = 0;
+ } else if (entry->volpan < 128) {+ /* Volume slide up */
+ /* Volume slide down */
+ /* Portamento down */
+ /* Portamento up */
+ } else if (entry->volpan <= 192) {+ /* Pan */
+ channel->pan = entry->volpan - 128;
+ channel->truepan = channel->pan << IT_ENVELOPE_SHIFT;
+ }
+ /* else */
+ /* Tone Portamento */
+ /* Vibrato */
+ }
+ return 0;
+}
+
+
+
+static void retrigger_xm_envelopes(IT_PLAYING *playing)
+{+ playing->volume_envelope.next_node = 0;
+ playing->volume_envelope.tick = -1;
+ playing->pan_envelope.next_node = 0;
+ playing->pan_envelope.tick = -1;
+ playing->fadeoutcount = 1024;
+}
+
+
+
+static void process_xm_note_data(DUMB_IT_SIGRENDERER *sigrenderer, IT_ENTRY *entry)
+{+ DUMB_IT_SIGDATA *sigdata = sigrenderer->sigdata;
+ IT_CHANNEL *channel = &sigrenderer->channel[(int)entry->channel];
+ IT_PLAYING * playing = NULL;
+
+ if (entry->mask & IT_ENTRY_INSTRUMENT) {+ int oldsample = channel->sample;
+ channel->inv_loop_offset = 0;
+ channel->instrument = entry->instrument;
+ instrument_to_sample(sigdata, channel);
+ if (channel->playing &&
+ !((entry->mask & IT_ENTRY_NOTE) && entry->note >= 120) &&
+ !((entry->mask & IT_ENTRY_EFFECT) && entry->effect == IT_XM_KEY_OFF && entry->effectvalue == 0)) {+ playing = dup_playing(channel->playing, channel, channel);
+ if (!playing) return;
+ if (!(sigdata->flags & IT_WAS_A_MOD)) {+ /* Retrigger vol/pan envelopes if enabled, and cancel fadeout.
+ * Also reset vol/pan to that of _original_ instrument.
+ */
+ channel->playing->flags &= ~(IT_PLAYING_SUSTAINOFF | IT_PLAYING_FADING);
+ it_playing_update_resamplers(channel->playing);
+
+ channel->volume = channel->playing->sample->default_volume;
+ channel->truepan = 32 + channel->playing->sample->default_pan*64;
+
+ retrigger_xm_envelopes(channel->playing);
+ } else {+ /* Switch if sample changed */
+ if (oldsample != channel->sample) {+ int i;
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (!sigrenderer->playing[i]) {+ channel->playing->declick_stage = 3;
+ sigrenderer->playing[i] = channel->playing;
+ channel->playing = NULL;
+ break;
+ }
+ }
+
+ if (!channel->sample) {+ if (channel->playing)
+ {+ free_playing(channel->playing);
+ channel->playing = NULL;
+ }
+ } else {+ if (channel->playing) {+ free_playing(channel->playing);
+ }
+ channel->playing = playing;
+ playing = NULL;
+ channel->playing->declick_stage = 0;
+ channel->playing->sampnum = channel->sample;
+ channel->playing->sample = &sigdata->sample[channel->sample-1];
+ it_playing_reset_resamplers(channel->playing, 0);
+ }
+ }
+ get_default_volpan(sigdata, channel);
+ }
+ }
+ }
+
+ if (!((entry->mask & IT_ENTRY_EFFECT) && entry->effect == IT_XM_KEY_OFF && entry->effectvalue == 0) &&
+ (entry->mask & IT_ENTRY_NOTE))
+ {+ if (!(entry->mask & IT_ENTRY_INSTRUMENT))
+ instrument_to_sample(sigdata, channel);
+
+ if (channel->note >= 120)
+ xm_note_off(sigdata, channel);
+ else if (channel->sample == 0) {+ /** If we get here, one of the following is the case:
+ ** 1. The instrument has never been specified on this channel.
+ ** 2. The specified instrument is invalid.
+ ** 3. The instrument has no sample mapped to the selected note.
+ ** What should happen?
+ **
+ ** Experimentation shows that any existing note stops and cannot
+ ** be brought back. A subsequent instrument change fixes that.
+ **/
+ if (channel->playing) {+ int i;
+ if (playing) {+ free_playing(channel->playing);
+ channel->playing = playing;
+ playing = NULL;
+ }
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (!sigrenderer->playing[i]) {+ channel->playing->declick_stage = 3;
+ sigrenderer->playing[i] = channel->playing;
+ channel->playing = NULL;
+ break;
+ }
+ }
+ if (channel->playing) {+ free_playing(channel->playing);
+ channel->playing = NULL;
+ }
+ }
+ if (playing) free_playing(playing);
+ return;
+ } else if (channel->playing && (entry->mask & IT_ENTRY_VOLPAN) && ((entry->volpan>>4) == 0xF)) {+ /* Don't retrigger note; portamento in the volume column. */
+ } else if (channel->playing &&
+ (entry->mask & IT_ENTRY_EFFECT) &&
+ (entry->effect == IT_TONE_PORTAMENTO ||
+ entry->effect == IT_VOLSLIDE_TONEPORTA)) {+ /* Don't retrigger note; portamento in the effects column. */
+ } else {+ channel->destnote = IT_NOTE_OFF;
+
+ if (!channel->playing) {+ channel->playing = new_playing();
+ if (!channel->playing) {+ if (playing) free_playing(playing);
+ return;
+ }
+ // Adding the following seems to do the trick for the case where a piece starts with an instrument alone and then some notes alone.
+ retrigger_xm_envelopes(channel->playing);
+ }
+ else if (playing) {+ /* volume rampy stuff! move note to NNA */
+ int i;
+ IT_PLAYING * ptemp;
+ if (playing->sample) ptemp = playing;
+ else ptemp = channel->playing;
+ if (!ptemp) {+ if (playing) free_playing(playing);
+ return;
+ }
+ playing = NULL;
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (!sigrenderer->playing[i]) {+ ptemp->declick_stage = 3;
+ ptemp->flags |= IT_PLAYING_SUSTAINOFF | IT_PLAYING_FADING;
+ sigrenderer->playing[i] = ptemp;
+ ptemp = NULL;
+ break;
+ }
+ }
+ if (ptemp) free_playing(ptemp);
+ }
+
+ channel->playing->flags = 0;
+ channel->playing->resampling_quality = sigrenderer->resampling_quality;
+ channel->playing->channel = channel;
+ channel->playing->sample = &sigdata->sample[channel->sample-1];
+ if (sigdata->flags & IT_USE_INSTRUMENTS)
+ channel->playing->instrument = &sigdata->instrument[channel->instrument-1];
+ else
+ channel->playing->instrument = NULL;
+ channel->playing->env_instrument = channel->playing->instrument;
+ channel->playing->sampnum = channel->sample;
+ channel->playing->instnum = channel->instrument;
+ channel->playing->declick_stage = 0;
+ channel->playing->channel_volume = channel->channelvolume;
+ channel->playing->note = channel->truenote;
+ channel->playing->enabled_envelopes = 0;
+ channel->playing->volume_offset = 0;
+ channel->playing->panning_offset = 0;
+ //channel->playing->output = channel->output;
+ if (sigdata->flags & IT_USE_INSTRUMENTS) {+ IT_PLAYING * playing = channel->playing;
+ IT_INSTRUMENT * instrument = playing->instrument;
+ if (instrument->volume_envelope.flags & IT_ENVELOPE_ON) playing->enabled_envelopes |= IT_ENV_VOLUME;
+ if (instrument->pan_envelope.flags & IT_ENVELOPE_ON) playing->enabled_envelopes |= IT_ENV_PANNING;
+ //if (instrument->output) playing->output = instrument->output;
+ }
+ channel->playing->filter_cutoff = 127;
+ channel->playing->filter_resonance = 0;
+ channel->playing->true_filter_cutoff = 127 << 8;
+ channel->playing->true_filter_resonance = 0;
+ channel->playing->vibrato_speed = 0;
+ channel->playing->vibrato_depth = 0;
+ channel->playing->vibrato_n = 0;
+ channel->playing->vibrato_time = 0;
+ channel->playing->vibrato_waveform = 0;
+ channel->playing->tremolo_speed = 0;
+ channel->playing->tremolo_depth = 0;
+ channel->playing->tremolo_time = 0;
+ channel->playing->tremolo_waveform = 0;
+ channel->playing->panbrello_speed = 0;
+ channel->playing->panbrello_depth = 0;
+ channel->playing->panbrello_time = 0;
+ channel->playing->panbrello_waveform = 0;
+ channel->playing->panbrello_random = 0;
+ channel->playing->sample_vibrato_time = 0;
+ channel->playing->sample_vibrato_waveform = channel->playing->sample->vibrato_waveform;
+ channel->playing->sample_vibrato_depth = 0;
+ channel->playing->slide = 0;
+ channel->playing->finetune = channel->playing->sample->finetune;
+ it_reset_filter_state(&channel->playing->filter_state[0]); // Are these
+ it_reset_filter_state(&channel->playing->filter_state[1]); // necessary?
+ it_playing_reset_resamplers(channel->playing, 0);
+
+ /** WARNING - is everything initialised? */
+ }
+ }
+
+ if (!((entry->mask & IT_ENTRY_EFFECT) && entry->effect == IT_XM_KEY_OFF && entry->effectvalue == 0) &&
+ !((entry->mask & IT_ENTRY_NOTE) && entry->note >= 120) &&
+ (entry->mask & (IT_ENTRY_NOTE | IT_ENTRY_INSTRUMENT)) == (IT_ENTRY_NOTE | IT_ENTRY_INSTRUMENT))
+ {+ if (channel->playing) retrigger_xm_envelopes(channel->playing);
+ get_default_volpan(sigdata, channel);
+ }
+
+ if ((entry->mask & IT_ENTRY_VOLPAN) && ((entry->volpan>>4) == 0xF)) {+ /* Tone Portamento */
+ unsigned char v = (entry->volpan & 15) << 4;
+ if (v == 0)
+ v = channel->lastG;
+ channel->lastG = v;
+ if (entry->mask & IT_ENTRY_NOTE)
+ if (channel->sample && channel->note < 120)
+ channel->destnote = channel->truenote;
+ channel->toneporta = v << 4;
+ } else if ((entry->mask & IT_ENTRY_EFFECT) &&
+ (entry->effect == IT_TONE_PORTAMENTO ||
+ entry->effect == IT_VOLSLIDE_TONEPORTA)) {+ unsigned char v;
+ if (entry->effect == IT_TONE_PORTAMENTO)
+ v = entry->effectvalue;
+ else
+ v = 0;
+ if (v == 0)
+ v = channel->lastG;
+ channel->lastG = v;
+ if (entry->mask & IT_ENTRY_NOTE)
+ if (channel->sample && channel->note < 120)
+ channel->destnote = channel->truenote;
+ channel->toneporta = v << 4;
+ }
+
+ if (entry->mask & IT_ENTRY_VOLPAN) {+ int effect = entry->volpan >> 4;
+ int value = entry->volpan & 15;
+ switch (effect) {+ case 0x6: /* Volume slide down */
+ channel->xm_volslide = -value;
+ break;
+ case 0x7: /* Volume slide up */
+ channel->xm_volslide = value;
+ break;
+ case 0x8: /* Fine volume slide down */
+ channel->volume -= value;
+ if (channel->volume > 64) channel->volume = 0;
+ break;
+ case 0x9: /* Fine volume slide up */
+ channel->volume += value;
+ if (channel->volume > 64) channel->volume = 64;
+ break;
+ case 0xA: /* Set vibrato speed */
+ if (value)
+ channel->lastHspeed = value;
+ if (channel->playing)
+ channel->playing->vibrato_speed = channel->lastHspeed;
+ break;
+ case 0xB: /* Vibrato */
+ if (value)
+ channel->lastHdepth = value << 2; /** WARNING: correct ? */
+ if (channel->playing) {+ channel->playing->vibrato_depth = channel->lastHdepth;
+ channel->playing->vibrato_speed = channel->lastHspeed;
+ channel->playing->vibrato_n++;
+ }
+ break;
+ case 0xC: /* Set panning */
+ channel->truepan = 32 + value*(17*64);
+ break;
+ case 0xD: /* Pan slide left */
+ /* -128 is a special case for emulating a 'feature' in FT2.
+ * As soon as effects are processed, it goes hard left.
+ */
+ channel->panslide = value ? -value : -128;
+ break;
+ case 0xE: /* Pan slide Right */
+ channel->panslide = value;
+ break;
+ case 0xF: /* Tone porta */
+ break;
+ default: /* Volume */
+ channel->volume = entry->volpan - 0x10;
+ break;
+ }
+ }
+
+ if (playing) free_playing(playing);
+}
+
+
+
+/* This function assumes !IT_IS_END_ROW(entry). */
+static int process_note_data(DUMB_IT_SIGRENDERER *sigrenderer, IT_ENTRY *entry, int ignore_cxx)
+{+ DUMB_IT_SIGDATA *sigdata = sigrenderer->sigdata;
+
+ if (sigdata->flags & IT_WAS_AN_XM)
+ process_xm_note_data(sigrenderer, entry);
+ else
+ if (process_it_note_data(sigrenderer, entry)) return 0;
+
+ return process_effects(sigrenderer, entry, ignore_cxx);
+}
+
+
+
+static int process_entry(DUMB_IT_SIGRENDERER *sigrenderer, IT_ENTRY *entry, int ignore_cxx)
+{+ IT_CHANNEL *channel = &sigrenderer->channel[(int)entry->channel];
+
+ if (entry->mask & IT_ENTRY_NOTE)
+ channel->note = entry->note;
+
+ if ((entry->mask & (IT_ENTRY_NOTE|IT_ENTRY_EFFECT)) && (sigrenderer->sigdata->flags & IT_WAS_A_669)) {+ reset_channel_effects(channel);
+ // XXX unknown
+ if (channel->playing) channel->playing->finetune = 0;
+ }
+
+ if ((entry->mask & IT_ENTRY_EFFECT) && entry->effect == IT_S) {+ /* channel->lastS was set in update_pattern_variables(). */
+ unsigned char effectvalue = channel->lastS;
+ if (effectvalue >> 4 == IT_S_NOTE_DELAY) {+ channel->note_delay_count = effectvalue & 15;
+ if (channel->note_delay_count == 0)
+ channel->note_delay_count = 1;
+ channel->note_delay_entry = entry;
+ return 0;
+ }
+ }
+
+ return process_note_data(sigrenderer, entry, ignore_cxx);
+}
+
+
+
+static void update_tick_counts(DUMB_IT_SIGRENDERER *sigrenderer)
+{+ int i;
+
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {+ IT_CHANNEL *channel = &sigrenderer->channel[i];
+
+ if (channel->key_off_count) {+ channel->key_off_count--;
+ if (channel->key_off_count == 0)
+ xm_note_off(sigrenderer->sigdata, channel);
+ } else if (channel->note_cut_count) {+ channel->note_cut_count--;
+ if (channel->note_cut_count == 0) {+ if (sigrenderer->sigdata->flags & (IT_WAS_AN_XM | IT_WAS_A_PTM))
+ channel->volume = 0;
+ else if (channel->playing) {+ int i;
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (!sigrenderer->playing[i]) {+ channel->playing->declick_stage = 3;
+ sigrenderer->playing[i] = channel->playing;
+ channel->playing = NULL;
+ break;
+ }
+ }
+ if (channel->playing) {+ free_playing(channel->playing);
+ channel->playing = NULL;
+ }
+ }
+ }
+ } else if (channel->note_delay_count) {+ channel->note_delay_count--;
+ if (channel->note_delay_count == 0)
+ process_note_data(sigrenderer, channel->note_delay_entry, 0);
+ /* Don't bother checking the return value; if the note
+ * was delayed, there can't have been a speed=0.
+ */
+ }
+ }
+}
+
+
+
+static int envelope_get_y(IT_ENVELOPE *envelope, IT_PLAYING_ENVELOPE *pe)
+{+#if 1
+ (void)envelope; //TODO: remove the parameter
+ return pe->value;
+#else
+ int ys, ye;
+ int ts, te;
+ int t;
+
+ if (pe->next_node <= 0)
+ return envelope->node_y[0] << IT_ENVELOPE_SHIFT;
+
+ if (pe->next_node >= envelope->n_nodes)
+ return envelope->node_y[envelope->n_nodes-1] << IT_ENVELOPE_SHIFT;
+
+ ys = envelope->node_y[pe->next_node-1] << IT_ENVELOPE_SHIFT;
+ ts = envelope->node_t[pe->next_node-1];
+ te = envelope->node_t[pe->next_node];
+
+ if (ts == te)
+ return ys;
+
+ ye = envelope->node_y[pe->next_node] << IT_ENVELOPE_SHIFT;
+
+ t = pe->tick;
+
+ return ys + (ye - ys) * (t - ts) / (te - ts);
+#endif
+}
+
+
+
+#if 0
+static int it_envelope_end(IT_PLAYING *playing, IT_ENVELOPE *envelope, IT_PLAYING_ENVELOPE *pe)
+{+ if (pe->next_node >= envelope->n_nodes)
+ return 1;
+
+ if (pe->tick < envelope->node_t[pe->next_node]) return 0;
+
+ if ((envelope->flags & IT_ENVELOPE_LOOP_ON) &&
+ envelope->loop_end >= pe->next_node &&
+ envelope->node_t[envelope->loop_end] <= pe->tick) return 0;
+
+ if ((envelope->flags & IT_ENVELOPE_SUSTAIN_LOOP) &&
+ !(playing->flags & IT_PLAYING_SUSTAINOFF) &&
+ envelope->sus_loop_end >= pe->next_node &&
+ envelope->node_t[envelope->sus_loop_end] <= pe->tick) return 0;
+
+ if (envelope->node_t[envelope->n_nodes-1] <= pe->tick) return 1;
+
+ return 0;
+}
+#endif
+
+
+
+/* Returns 1 when fading should be initiated for a volume envelope. */
+static int update_it_envelope(IT_PLAYING *playing, IT_ENVELOPE *envelope, IT_PLAYING_ENVELOPE *pe, int flags)
+{+ if (!(playing->enabled_envelopes & flags) || !envelope->n_nodes)
+ return 0;
+
+ ASSERT(envelope->n_nodes > 0);
+
+ if (pe->tick <= 0)
+ pe->value = envelope->node_y[0] << IT_ENVELOPE_SHIFT;
+ else if (pe->tick >= envelope->node_t[envelope->n_nodes-1]) {+ pe->value = envelope->node_y[envelope->n_nodes-1] << IT_ENVELOPE_SHIFT;
+ } else {+ int ys = envelope->node_y[pe->next_node-1] << IT_ENVELOPE_SHIFT;
+ int ts = envelope->node_t[pe->next_node-1];
+ int te = envelope->node_t[pe->next_node];
+
+ if (ts == te)
+ pe->value = ys;
+ else {+ int ye = envelope->node_y[pe->next_node] << IT_ENVELOPE_SHIFT;
+ int t = pe->tick;
+
+ pe->value = ys + (ye - ys) * (t - ts) / (te - ts);
+ }
+ }
+
+ pe->tick++;
+
+ recalculate_it_envelope_node(pe, envelope);
+
+ if ((envelope->flags & IT_ENVELOPE_SUSTAIN_LOOP) && !(playing->flags & IT_PLAYING_SUSTAINOFF)) {+ if (pe->tick > envelope->node_t[envelope->sus_loop_end]) {+ pe->next_node = envelope->sus_loop_start + 1;
+ ASSERT(pe->next_node <= envelope->n_nodes);
+ pe->tick = envelope->node_t[envelope->sus_loop_start];
+ return 0;
+ }
+ } else if (envelope->flags & IT_ENVELOPE_LOOP_ON) {+ if (pe->tick > envelope->node_t[envelope->loop_end]) {+ pe->next_node = envelope->loop_start + 1;
+ ASSERT(pe->next_node <= envelope->n_nodes);
+ pe->tick = envelope->node_t[envelope->loop_start];
+ return 0;
+ }
+ }
+ else if (pe->tick > envelope->node_t[envelope->n_nodes - 1])
+ return 1;
+
+ return 0;
+}
+
+
+
+static void update_it_envelopes(IT_PLAYING *playing)
+{+ IT_ENVELOPE *envelope = &playing->env_instrument->volume_envelope;
+ IT_PLAYING_ENVELOPE *pe = &playing->volume_envelope;
+
+ if (update_it_envelope(playing, envelope, pe, IT_ENV_VOLUME)) {+ playing->flags |= IT_PLAYING_FADING;
+ if (pe->value == 0)
+ playing->flags |= IT_PLAYING_DEAD;
+ }
+
+ update_it_envelope(playing, &playing->env_instrument->pan_envelope, &playing->pan_envelope, IT_ENV_PANNING);
+ update_it_envelope(playing, &playing->env_instrument->pitch_envelope, &playing->pitch_envelope, IT_ENV_PITCH);
+}
+
+
+
+static int xm_envelope_is_sustaining(IT_PLAYING *playing, IT_ENVELOPE *envelope, IT_PLAYING_ENVELOPE *pe)
+{+ if ((envelope->flags & IT_ENVELOPE_SUSTAIN_LOOP) && !(playing->flags & IT_PLAYING_SUSTAINOFF))
+ if (envelope->sus_loop_start < envelope->n_nodes)
+ if (pe->tick == envelope->node_t[envelope->sus_loop_start])
+ return 1;
+ return 0;
+}
+
+
+
+static void update_xm_envelope(IT_PLAYING *playing, IT_ENVELOPE *envelope, IT_PLAYING_ENVELOPE *pe)
+{+ if (!(envelope->flags & IT_ENVELOPE_ON))
+ return;
+
+ if (xm_envelope_is_sustaining(playing, envelope, pe))
+ return;
+
+ if (pe->tick >= envelope->node_t[envelope->n_nodes-1])
+ return;
+
+ pe->tick++;
+
+ /* pe->next_node must be kept up to date for envelope_get_y(). */
+ while (pe->tick > envelope->node_t[pe->next_node])
+ pe->next_node++;
+
+ if ((envelope->flags & IT_ENVELOPE_LOOP_ON) && envelope->loop_end < envelope->n_nodes) {+ if (pe->tick == envelope->node_t[envelope->loop_end]) {+ pe->next_node = MID(0, envelope->loop_start, envelope->n_nodes - 1);
+ pe->tick = envelope->node_t[pe->next_node];
+ }
+ }
+
+ xm_envelope_calculate_value(envelope, pe);
+}
+
+
+
+static void update_xm_envelopes(IT_PLAYING *playing)
+{+ update_xm_envelope(playing, &playing->env_instrument->volume_envelope, &playing->volume_envelope);
+ update_xm_envelope(playing, &playing->env_instrument->pan_envelope, &playing->pan_envelope);
+}
+
+
+
+static void update_fadeout(DUMB_IT_SIGDATA *sigdata, IT_PLAYING *playing)
+{+ if (playing->flags & IT_PLAYING_FADING) {+ playing->fadeoutcount -= playing->env_instrument->fadeout;
+ if (playing->fadeoutcount <= 0) {+ playing->fadeoutcount = 0;
+ if (!(sigdata->flags & IT_WAS_AN_XM))
+ playing->flags |= IT_PLAYING_DEAD;
+ }
+ }
+}
+
+static int apply_pan_envelope(IT_PLAYING *playing);
+static float calculate_volume(DUMB_IT_SIGRENDERER *sigrenderer, IT_PLAYING *playing, float volume);
+
+static void playing_volume_setup(DUMB_IT_SIGRENDERER * sigrenderer, IT_PLAYING * playing, float invt2g)
+{+ DUMB_IT_SIGDATA * sigdata = sigrenderer->sigdata;
+ int pan;
+ float vol, span;
+ float rampScale;
+ int ramp_style = sigrenderer->ramp_style;
+
+ pan = apply_pan_envelope(playing);
+
+ if ((sigrenderer->n_channels >= 2) && (sigdata->flags & IT_STEREO) && (sigrenderer->n_channels != 3 || !IT_IS_SURROUND_SHIFTED(pan))) {+ if (!IT_IS_SURROUND_SHIFTED(pan)) {+ span = (pan - (32<<8)) * sigdata->pan_separation * (1.0f / ((32<<8) * 128));
+ vol = 0.5f * (1.0f - span);
+ playing->float_volume[0] = vol;
+ playing->float_volume[1] = 1.0f - vol;
+ } else {+ playing->float_volume[0] = -0.5f;
+ playing->float_volume[1] = 0.5f;
+ }
+ } else {+ playing->float_volume[0] = 1.0f;
+ playing->float_volume[1] = 1.0f;
+ }
+
+ vol = calculate_volume(sigrenderer, playing, 1.0f);
+ playing->float_volume[0] *= vol;
+ playing->float_volume[1] *= vol;
+
+ rampScale = 4;
+
+ if (ramp_style > 0 && playing->declick_stage == 2) {+ if ((playing->ramp_volume[0] == 0 && playing->ramp_volume[1] == 0) || vol == 0)
+ rampScale = 48;
+ }
+
+ if (ramp_style == 0 || (ramp_style < 2 && playing->declick_stage == 2)) {+ if (playing->declick_stage <= 2) {+ playing->ramp_volume[0] = playing->float_volume[0];
+ playing->ramp_volume[1] = playing->float_volume[1];
+ playing->declick_stage = 2;
+ } else {+ playing->float_volume[0] = 0;
+ playing->float_volume[1] = 0;
+ playing->ramp_volume[0] = 0;
+ playing->ramp_volume[1] = 0;
+ playing->declick_stage = 5;
+ }
+ playing->ramp_delta[0] = 0;
+ playing->ramp_delta[1] = 0;
+ } else {+ if (playing->declick_stage == 0) {+ playing->ramp_volume[0] = 0;
+ playing->ramp_volume[1] = 0;
+ rampScale = 48;
+ playing->declick_stage++;
+ } else if (playing->declick_stage == 1) {+ rampScale = 48;
+ } else if (playing->declick_stage >= 3) {+ playing->float_volume[0] = 0;
+ playing->float_volume[1] = 0;
+ if (playing->declick_stage == 3)
+ playing->declick_stage++;
+ rampScale = 48;
+ }
+ playing->ramp_delta[0] = rampScale * invt2g * (playing->float_volume[0] - playing->ramp_volume[0]);
+ playing->ramp_delta[1] = rampScale * invt2g * (playing->float_volume[1] - playing->ramp_volume[1]);
+ }
+}
+
+static void process_playing(DUMB_IT_SIGRENDERER *sigrenderer, IT_PLAYING *playing, float invt2g)
+{+ DUMB_IT_SIGDATA * sigdata = sigrenderer->sigdata;
+
+ if (playing->instrument) {+ if (sigdata->flags & IT_WAS_AN_XM)
+ update_xm_envelopes(playing);
+ else
+ update_it_envelopes(playing);
+ update_fadeout(sigdata, playing);
+ }
+
+ playing_volume_setup(sigrenderer, playing, invt2g);
+
+ if (sigdata->flags & IT_WAS_AN_XM) {+ /* 'depth' is used to store the tick number for XM files. */
+ if (playing->sample_vibrato_depth < playing->sample->vibrato_rate)
+ playing->sample_vibrato_depth++;
+ } else {+ playing->sample_vibrato_depth += playing->sample->vibrato_rate;
+ if (playing->sample_vibrato_depth > playing->sample->vibrato_depth << 8)
+ playing->sample_vibrato_depth = playing->sample->vibrato_depth << 8;
+ }
+
+ playing->sample_vibrato_time += playing->sample->vibrato_speed;
+}
+
+#if (defined(_MSC_VER) && _MSC_VER < 1800) || defined(__ANDROID__)
+static float log2(float x) {return (float)log(x)/(float)log(2.0f);}+#endif
+
+static int delta_to_note(float delta, int base)
+{+ float note;
+ note = log2(delta * 65536.f / (float)base)*12.0f+60.5f;
+ if (note > 119) note = 119;
+ else if (note < 0) note = 0;
+ return (int)note;
+}
+
+// Period table for Protracker octaves 0-5:
+#if 0
+static const unsigned short ProTrackerPeriodTable[6*12] =
+{+ 1712,1616,1524,1440,1356,1280,1208,1140,1076,1016,960,907,
+ 856,808,762,720,678,640,604,570,538,508,480,453,
+ 428,404,381,360,339,320,302,285,269,254,240,226,
+ 214,202,190,180,170,160,151,143,135,127,120,113,
+ 107,101,95,90,85,80,75,71,67,63,60,56,
+ 53,50,47,45,42,40,37,35,33,31,30,28
+};
+
+
+static const unsigned short ProTrackerTunedPeriods[16*12] =
+{+ 1712,1616,1524,1440,1356,1280,1208,1140,1076,1016,960,907,
+ 1700,1604,1514,1430,1348,1274,1202,1134,1070,1010,954,900,
+ 1688,1592,1504,1418,1340,1264,1194,1126,1064,1004,948,894,
+ 1676,1582,1492,1408,1330,1256,1184,1118,1056,996,940,888,
+ 1664,1570,1482,1398,1320,1246,1176,1110,1048,990,934,882,
+ 1652,1558,1472,1388,1310,1238,1168,1102,1040,982,926,874,
+ 1640,1548,1460,1378,1302,1228,1160,1094,1032,974,920,868,
+ 1628,1536,1450,1368,1292,1220,1150,1086,1026,968,914,862,
+ 1814,1712,1616,1524,1440,1356,1280,1208,1140,1076,1016,960,
+ 1800,1700,1604,1514,1430,1350,1272,1202,1134,1070,1010,954,
+ 1788,1688,1592,1504,1418,1340,1264,1194,1126,1064,1004,948,
+ 1774,1676,1582,1492,1408,1330,1256,1184,1118,1056,996,940,
+ 1762,1664,1570,1482,1398,1320,1246,1176,1110,1048,988,934,
+ 1750,1652,1558,1472,1388,1310,1238,1168,1102,1040,982,926,
+ 1736,1640,1548,1460,1378,1302,1228,1160,1094,1032,974,920,
+ 1724,1628,1536,1450,1368,1292,1220,1150,1086,1026,968,914
+};
+#endif
+
+static void process_all_playing(DUMB_IT_SIGRENDERER *sigrenderer)
+{+ DUMB_IT_SIGDATA *sigdata = sigrenderer->sigdata;
+ int i;
+
+ float invt2g = 1.0f / ((float)TICK_TIME_DIVIDEND / (float)sigrenderer->tempo / 256.0f);
+
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {+ IT_CHANNEL *channel = &sigrenderer->channel[i];
+ IT_PLAYING *playing = channel->playing;
+
+ if (playing) {+ int vibrato_shift;
+ switch (playing->vibrato_waveform)
+ {+ default:
+ vibrato_shift = it_sine[playing->vibrato_time];
+ break;
+ case 1:
+ vibrato_shift = it_sawtooth[playing->vibrato_time];
+ break;
+ case 2:
+ vibrato_shift = it_squarewave[playing->vibrato_time];
+ break;
+ case 3:
+ vibrato_shift = (rand() % 129) - 64;
+ break;
+ case 4:
+ vibrato_shift = it_xm_squarewave[playing->vibrato_time];
+ break;
+ case 5:
+ vibrato_shift = it_xm_ramp[playing->vibrato_time];
+ break;
+ case 6:
+ vibrato_shift = it_xm_ramp[255-playing->vibrato_time];
+ break;
+ }
+ vibrato_shift *= playing->vibrato_n;
+ vibrato_shift *= playing->vibrato_depth;
+ vibrato_shift >>= 4;
+
+ if (sigdata->flags & IT_OLD_EFFECTS)
+ vibrato_shift = -vibrato_shift;
+
+ playing->volume = channel->volume;
+ playing->pan = channel->truepan;
+
+ if (playing->volume_offset) {+ playing->volume += (playing->volume_offset * playing->volume) >> 7;
+ if (playing->volume > 64) {+ if (playing->volume_offset < 0) playing->volume = 0;
+ else playing->volume = 64;
+ }
+ }
+
+ if (playing->panning_offset && !IT_IS_SURROUND_SHIFTED(playing->pan)) {+ playing->pan += playing->panning_offset << IT_ENVELOPE_SHIFT;
+ if (playing->pan > 64 << IT_ENVELOPE_SHIFT) {+ if (playing->panning_offset < 0) playing->pan = 0;
+ else playing->pan = 64 << IT_ENVELOPE_SHIFT;
+ }
+ }
+
+ if (sigdata->flags & IT_LINEAR_SLIDES) {+ int currpitch = ((playing->note - 60) << 8) + playing->slide
+ + vibrato_shift
+ + playing->finetune;
+
+ /* We add a feature here, which is that of keeping the pitch
+ * within range. Otherwise it crashes. Trust me. It happened.
+ * The limit 32768 gives almost 11 octaves either way.
+ */
+ if (currpitch < -32768)
+ currpitch = -32768;
+ else if (currpitch > 32767)
+ currpitch = 32767;
+
+ playing->delta = (float)pow(DUMB_PITCH_BASE, currpitch);
+ playing->delta *= playing->sample->C5_speed * (1.f / 65536.0f);
+ } else {+ int slide = playing->slide + vibrato_shift;
+
+ playing->delta = (float)pow(DUMB_PITCH_BASE, ((60 - playing->note) << 8) - playing->finetune );
+ /* playing->delta is 1.0 for C-5, 0.5 for C-6, etc. */
+
+ playing->delta *= 1.0f / playing->sample->C5_speed;
+
+ playing->delta -= slide / AMIGA_DIVISOR;
+
+ if (playing->delta < (1.0f / 65536.0f) / 32768.0f) {+ // Should XM notes die if Amiga slides go out of range?
+ playing->flags |= IT_PLAYING_DEAD;
+ playing->delta = 1. / 32768.;
+ continue;
+ }
+
+ playing->delta = (1.0f / 65536.0f) / playing->delta;
+ }
+
+ if (playing->channel->glissando && playing->channel->toneporta && playing->channel->destnote < 120) {+ playing->delta = (float)pow(DUMB_SEMITONE_BASE, delta_to_note(playing->delta, (int)playing->sample->C5_speed) - 60)
+ * playing->sample->C5_speed * (1.f / 65536.f);
+ }
+
+ /*
+ if ( channel->arpeggio ) { // another FT2 bug...+ if ((sigdata->flags & (IT_LINEAR_SLIDES|IT_WAS_AN_XM|IT_WAS_A_MOD)) == (IT_WAS_AN_XM|IT_LINEAR_SLIDES) &&
+ playing->flags & IT_PLAYING_SUSTAINOFF)
+ {+ if ( channel->arpeggio > 0xFF )
+ playing->delta = playing->sample->C5_speed * (1.f / 65536.f);
+ }
+ else*/
+ {+ int tick = sigrenderer->tick - 1;
+ if ((sigrenderer->sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_MOD))!=IT_WAS_AN_XM)
+ tick = sigrenderer->speed - tick - 1;
+ else if (tick == sigrenderer->speed - 1)
+ tick = 0;
+ else
+ ++tick;
+ playing->delta *= (float)pow(DUMB_SEMITONE_BASE, channel->arpeggio_offsets[channel->arpeggio_table[tick&31]]);
+ }
+ /*
+ }*/
+
+ playing->filter_cutoff = channel->filter_cutoff;
+ playing->filter_resonance = channel->filter_resonance;
+ }
+ }
+
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {+ if (sigrenderer->channel[i].playing) {+ process_playing(sigrenderer, sigrenderer->channel[i].playing, invt2g);
+ if (!(sigdata->flags & IT_WAS_AN_XM)) {+ //if ((sigrenderer->channel[i].playing->flags & (IT_PLAYING_BACKGROUND | IT_PLAYING_DEAD)) == (IT_PLAYING_BACKGROUND | IT_PLAYING_DEAD)) {+ // This change was made so Gxx would work correctly when a note faded out or whatever. Let's hope nothing else was broken by it.
+ if (sigrenderer->channel[i].playing->flags & IT_PLAYING_DEAD) {+ free_playing(sigrenderer->channel[i].playing);
+ sigrenderer->channel[i].playing = NULL;
+ }
+ }
+ }
+ }
+
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (sigrenderer->playing[i]) {+ process_playing(sigrenderer, sigrenderer->playing[i], invt2g);
+ if (sigrenderer->playing[i]->flags & IT_PLAYING_DEAD) {+ free_playing(sigrenderer->playing[i]);
+ sigrenderer->playing[i] = NULL;
+ }
+ }
+ }
+}
+
+
+
+static int process_tick(DUMB_IT_SIGRENDERER *sigrenderer)
+{+ DUMB_IT_SIGDATA *sigdata = sigrenderer->sigdata;
+
+ // Set note vol/freq to vol/freq set for each channel
+
+ if (sigrenderer->speed && --sigrenderer->tick == 0) {+ reset_tick_counts(sigrenderer);
+ sigrenderer->tick = sigrenderer->speed;
+ sigrenderer->rowcount--;
+ if (sigrenderer->rowcount == 0) {+ sigrenderer->rowcount = 1;
+
+#ifdef BIT_ARRAY_BULLSHIT
+ if (sigrenderer->n_rows)
+ {+#if 1
+ /*
+ if (bit_array_test(sigrenderer->played, sigrenderer->order * 256 + sigrenderer->row))
+ {+ if (sigrenderer->callbacks->loop) {+ if ((*sigrenderer->callbacks->loop)(sigrenderer->callbacks->loop_data))
+ return 1;
+ bit_array_reset(sigrenderer->played);
+ if (sigrenderer->speed == 0)
+ goto speed0; I love goto
+ }
+ }
+ */
+#endif
+ bit_array_set(sigrenderer->played, sigrenderer->order * 256 + sigrenderer->row);
+ {+ int n;
+ for (n = 0; n < DUMB_IT_N_CHANNELS; n++)
+ {+ IT_CHANNEL * channel = &sigrenderer->channel[n];
+ if (channel->played_patjump)
+ {+ if (channel->played_patjump_order == sigrenderer->order)
+ {+ bit_array_set(channel->played_patjump, sigrenderer->row);
+ }
+ /*
+ else if ((channel->played_patjump_order & 0x7FFF) == sigrenderer->order)
+ {+ channel->played_patjump_order |= 0x4000;
+ }
+ else if ((channel->played_patjump_order & 0x3FFF) == sigrenderer->order)
+ {+ if ((sigdata->flags & (IT_WAS_AN_XM|IT_WAS_A_MOD)) == IT_WAS_AN_XM)
+ {+ joy, was XM, pattern loop bug triggered break to row in same order
+ bit_array_mask(sigrenderer->played, channel->played_patjump, sigrenderer->order * 256);
+ }
+ bit_array_destroy(channel->played_patjump);
+ channel->played_patjump = 0;
+ channel->played_patjump_order = 0xFFFE;
+ }
+ */
+ else
+ {+ bit_array_destroy(channel->played_patjump);
+ channel->played_patjump = 0;
+ channel->played_patjump_order = 0xFFFE;
+ }
+ }
+ }
+ }
+ }
+#endif
+
+ sigrenderer->processrow++;
+
+ if (sigrenderer->processrow >= sigrenderer->n_rows) {+ IT_PATTERN *pattern;
+ int n;
+ int processorder = sigrenderer->processorder;
+
+ if ((sigrenderer->processrow|0xC00) == 0xFFFE + 1) { /* It was incremented above! */+ sigrenderer->processrow = sigrenderer->breakrow;
+ sigrenderer->breakrow = 0;
+ for (n = 0; n < DUMB_IT_N_CHANNELS; n++) sigrenderer->channel[n].pat_loop_end_row = 0;
+ } else {+ sigrenderer->processrow = sigrenderer->breakrow;
+ sigrenderer->breakrow = 0; // XXX lolwut
+ }
+
+ if (sigrenderer->processorder == 0xFFFF)
+ sigrenderer->processorder = sigrenderer->order - 1;
+
+ for (;;) {+ sigrenderer->processorder++;
+
+ if (sigrenderer->processorder >= sigdata->n_orders) {+ sigrenderer->processorder = sigrenderer->restart_position;
+ if (sigrenderer->processorder >= sigdata->n_orders) {+ /* Restarting beyond end. We'll loop for now. */
+ sigrenderer->processorder = -1;
+ continue;
+ }
+ if (sigdata->flags & IT_WAS_AN_OKT) {+ /* Reset some things */
+ sigrenderer->speed = sigdata->speed;
+ sigrenderer->tempo = sigdata->tempo;
+ for (n = 0; n < DUMB_IT_N_CHANNELS; n++) {+ xm_note_off(sigdata, &sigrenderer->channel[n]);
+ }
+ }
+ }
+
+ n = sigdata->order[sigrenderer->processorder];
+
+ if (n < sigdata->n_patterns)
+ break;
+
+#ifdef INVALID_ORDERS_END_SONG
+ if (n != IT_ORDER_SKIP)
+#else
+ if (n == IT_ORDER_END)
+#endif
+ {+ sigrenderer->processorder = sigrenderer->restart_position - 1;
+ }
+
+#ifdef BIT_ARRAY_BULLSHIT
+ /* Fix play tracking and timekeeping for orders containing skip commands */
+ for (n = 0; n < 256; n++) {+ bit_array_set(sigrenderer->played, sigrenderer->processorder * 256 + n);
+ timekeeping_array_push(sigrenderer->row_timekeeper, sigrenderer->processorder * 256 + n, sigrenderer->time_played);
+ timekeeping_array_bump(sigrenderer->row_timekeeper, sigrenderer->processorder * 256 + n);
+ }
+#endif
+ }
+
+ pattern = &sigdata->pattern[n];
+
+ n = sigrenderer->n_rows;
+ sigrenderer->n_rows = pattern->n_rows;
+
+ if (sigrenderer->processrow >= sigrenderer->n_rows)
+ sigrenderer->processrow = 0;
+
+/** WARNING - everything pertaining to a new pattern initialised? */
+
+ sigrenderer->entry = sigrenderer->entry_start = pattern->entry;
+ sigrenderer->entry_end = sigrenderer->entry + pattern->n_entries;
+
+ /* If n_rows was 0, we're only just starting. Don't do anything weird here. */
+ /* added: process row check, for break to row spooniness */
+ if (n && (processorder == 0xFFFF ? sigrenderer->order > sigrenderer->processorder : sigrenderer->order >= sigrenderer->processorder)
+#ifdef BIT_ARRAY_BULLSHIT
+ && bit_array_test(sigrenderer->played, sigrenderer->processorder * 256 + sigrenderer->processrow)
+#endif
+ ) {+#ifdef BIT_ARRAY_BULLSHIT
+ sigrenderer->looped = 1;
+#endif
+ if (sigrenderer->callbacks->loop) {+ if ((*sigrenderer->callbacks->loop)(sigrenderer->callbacks->loop_data))
+ return 1;
+#ifdef BIT_ARRAY_BULLSHIT
+ bit_array_reset(sigrenderer->played);
+#endif
+ if (sigrenderer->speed == 0)
+ goto speed0; /* I love goto */
+ }
+ }
+ sigrenderer->order = sigrenderer->processorder;
+
+ n = sigrenderer->processrow;
+ while (n) {+ while (sigrenderer->entry < sigrenderer->entry_end) {+ if (IT_IS_END_ROW(sigrenderer->entry)) {+ sigrenderer->entry++;
+ break;
+ }
+ sigrenderer->entry++;
+ }
+ n--;
+ }
+ sigrenderer->row = sigrenderer->processrow;
+ } else {+ if (sigrenderer->entry) {+ while (sigrenderer->entry < sigrenderer->entry_end) {+ if (IT_IS_END_ROW(sigrenderer->entry)) {+ sigrenderer->entry++;
+ break;
+ }
+ sigrenderer->entry++;
+ }
+ sigrenderer->row++;
+ } else {+#ifdef BIT_ARRAY_BULLSHIT
+ bit_array_clear(sigrenderer->played, sigrenderer->order * 256);
+#endif
+ sigrenderer->entry = sigrenderer->entry_start;
+ sigrenderer->row = 0;
+ }
+ }
+
+#ifdef BIT_ARRAY_BULLSHIT
+ if (sigrenderer->looped == 0) {+ timekeeping_array_push(sigrenderer->row_timekeeper, sigrenderer->order * 256 + sigrenderer->row, sigrenderer->time_played);
+ }
+ timekeeping_array_bump(sigrenderer->row_timekeeper, sigrenderer->order * 256 + sigrenderer->row);
+#endif
+
+ if (!(sigdata->flags & IT_WAS_A_669))
+ reset_effects(sigrenderer);
+
+ {+ IT_ENTRY *entry = sigrenderer->entry;
+ int ignore_cxx = 0;
+
+ while (entry < sigrenderer->entry_end && !IT_IS_END_ROW(entry))
+ ignore_cxx |= update_pattern_variables(sigrenderer, entry++);
+
+ entry = sigrenderer->entry;
+
+ while (entry < sigrenderer->entry_end && !IT_IS_END_ROW(entry))
+ if (process_entry(sigrenderer, entry++, sigdata->flags & IT_WAS_AN_XM ? 0 : ignore_cxx))
+ return 1;
+ }
+
+ if (sigdata->flags & IT_WAS_AN_OKT)
+ update_effects(sigrenderer);
+ else if (!(sigdata->flags & IT_OLD_EFFECTS))
+ update_smooth_effects(sigrenderer);
+ } else {+ {+ IT_ENTRY *entry = sigrenderer->entry;
+
+ while (entry < sigrenderer->entry_end && !IT_IS_END_ROW(entry)) {+ if (entry->mask & IT_ENTRY_EFFECT && entry->effect != IT_SET_SAMPLE_OFFSET)
+ process_effects(sigrenderer, entry, 0);
+ /* Don't bother checking the return value; if there
+ * was a pattern delay, there can't be a speed=0.
+ */
+ entry++;
+ }
+ }
+
+ update_effects(sigrenderer);
+ }
+ } else {+ if ( !(sigdata->flags & IT_WAS_AN_STM) || !(sigrenderer->tick & 15)) {+ speed0:
+ update_effects(sigrenderer);
+ update_tick_counts(sigrenderer);
+ }
+ }
+
+ if (sigrenderer->globalvolume == 0) {+ if (sigrenderer->callbacks->global_volume_zero) {+ LONG_LONG t = sigrenderer->gvz_sub_time + ((TICK_TIME_DIVIDEND / (sigrenderer->tempo << 8)) << 16);
+ sigrenderer->gvz_time += (int)(t >> 16);
+ sigrenderer->gvz_sub_time = (int)t & 65535;
+ if (sigrenderer->gvz_time >= 65536 * 12) {+#ifdef BIT_ARRAY_BULLSHIT
+ sigrenderer->looped = 1;
+#endif
+ if ((*sigrenderer->callbacks->global_volume_zero)(sigrenderer->callbacks->global_volume_zero_data))
+ return 1;
+ }
+ }
+ } else {+ if (sigrenderer->callbacks->global_volume_zero) {+ sigrenderer->gvz_time = 0;
+ sigrenderer->gvz_sub_time = 0;
+ }
+ }
+
+ process_all_playing(sigrenderer);
+
+ {+ LONG_LONG t = (TICK_TIME_DIVIDEND / (sigrenderer->tempo << 8)) << 16;
+ if ( sigrenderer->sigdata->flags & IT_WAS_AN_STM ) {+ t /= 16;
+ }
+ t += sigrenderer->sub_time_left;
+ sigrenderer->time_left += (int)(t >> 16);
+ sigrenderer->sub_time_left = (int)t & 65535;
+ }
+
+ return 0;
+}
+
+
+
+int dumb_it_max_to_mix = 64;
+
+#if 0
+static const int aiMODVol[] =
+{+ 0,
+ 16, 24, 32, 48, 64, 80, 96, 112,
+ 128, 144, 160, 176, 192, 208, 224, 240,
+ 256, 272, 288, 304, 320, 336, 352, 368,
+ 384, 400, 416, 432, 448, 464, 480, 496,
+ 529, 545, 561, 577, 593, 609, 625, 641,
+ 657, 673, 689, 705, 721, 737, 753, 769,
+ 785, 801, 817, 833, 849, 865, 881, 897,
+ 913, 929, 945, 961, 977, 993, 1009, 1024
+};
+#endif
+
+static const int aiPTMVolScaled[] =
+{+ 0,
+ 31, 54, 73, 96, 111, 130, 153, 172,
+ 191, 206, 222, 237, 252, 275, 298, 317,
+ 336, 351, 370, 386, 401, 416, 428, 443,
+ 454, 466, 477, 489, 512, 531, 553, 573,
+ 592, 611, 626, 645, 660, 679, 695, 710,
+ 725, 740, 756, 767, 782, 798, 809, 820,
+ 836, 847, 859, 870, 881, 897, 908, 916,
+ 927, 939, 950, 962, 969, 983, 1005, 1024
+};
+
+static float calculate_volume(DUMB_IT_SIGRENDERER *sigrenderer, IT_PLAYING *playing, float volume)
+{+ if (volume != 0) {+ int vol;
+
+ if (playing->channel->flags & IT_CHANNEL_MUTED)
+ return 0;
+
+ if ((playing->channel->tremor_time & 192) == 128)
+ return 0;
+
+ switch (playing->tremolo_waveform)
+ {+ default:
+ vol = it_sine[playing->tremolo_time];
+ break;
+ case 1:
+ vol = it_sawtooth[playing->tremolo_time];
+ break;
+ case 2:
+ vol = it_squarewave[playing->tremolo_time];
+ break;
+ case 3:
+ vol = (rand() % 129) - 64;
+ break;
+ case 4:
+ vol = it_xm_squarewave[playing->tremolo_time];
+ break;
+ case 5:
+ vol = it_xm_ramp[playing->tremolo_time];
+ break;
+ case 6:
+ vol = it_xm_ramp[255-((sigrenderer->sigdata->flags & IT_WAS_A_MOD)?playing->vibrato_time:playing->tremolo_time)];
+ break;
+ }
+ vol *= playing->tremolo_depth;
+
+ vol = (playing->volume << 5) + vol;
+
+ if (vol <= 0)
+ return 0;
+
+ if (vol > 64 << 5)
+ vol = 64 << 5;
+
+ if ( sigrenderer->sigdata->flags & IT_WAS_A_PTM )
+ {+ int v = aiPTMVolScaled[ vol >> 5 ];
+ if ( vol < 64 << 5 )
+ {+ int f = vol & ( ( 1 << 5 ) - 1 );
+ int f2 = ( 1 << 5 ) - f;
+ int v2 = aiPTMVolScaled[ ( vol >> 5 ) + 1 ];
+ v = ( v * f2 + v2 * f ) >> 5;
+ }
+ vol = v << 1;
+ }
+
+ volume *= vol; /* 64 << 5 */
+ volume *= playing->sample->global_volume; /* 64 */
+ volume *= playing->channel_volume; /* 64 */
+ volume *= sigrenderer->globalvolume; /* 128 */
+ volume *= sigrenderer->sigdata->mixing_volume; /* 128 */
+ volume *= 1.0f / ((64 << 5) * 64.0f * 64.0f * 128.0f * 128.0f);
+
+ if (volume && playing->instrument) {+ if (playing->enabled_envelopes & IT_ENV_VOLUME && playing->env_instrument->volume_envelope.n_nodes) {+ volume *= envelope_get_y(&playing->env_instrument->volume_envelope, &playing->volume_envelope);
+ volume *= 1.0f / (64 << IT_ENVELOPE_SHIFT);
+ }
+ volume *= playing->instrument->global_volume; /* 128 */
+ volume *= playing->fadeoutcount; /* 1024 */
+ volume *= 1.0f / (128.0f * 1024.0f);
+ }
+ }
+
+ return volume;
+}
+
+
+
+static int apply_pan_envelope(IT_PLAYING *playing)
+{+ if (playing->pan <= 64 << IT_ENVELOPE_SHIFT) {+ int pan;
+ if (playing->panbrello_depth) {+ switch (playing->panbrello_waveform) {+ default:
+ pan = it_sine[playing->panbrello_time];
+ break;
+ case 1:
+ pan = it_sawtooth[playing->panbrello_time];
+ break;
+ case 2:
+ pan = it_squarewave[playing->panbrello_time];
+ break;
+ case 3:
+ pan = playing->panbrello_random;
+ break;
+ }
+ pan *= playing->panbrello_depth << 3;
+
+ pan += playing->pan;
+ if (pan < 0) pan = 0;
+ else if (pan > 64 << IT_ENVELOPE_SHIFT) pan = 64 << IT_ENVELOPE_SHIFT;
+ } else {+ pan = playing->pan;
+ }
+
+ if (playing->env_instrument && (playing->enabled_envelopes & IT_ENV_PANNING)) {+ int p = envelope_get_y(&playing->env_instrument->pan_envelope, &playing->pan_envelope);
+ if (pan > 32 << IT_ENVELOPE_SHIFT)
+ p *= (64 << IT_ENVELOPE_SHIFT) - pan;
+ else
+ p *= pan;
+ pan += p >> (5 + IT_ENVELOPE_SHIFT);
+ }
+ return pan;
+ }
+ return playing->pan;
+}
+
+
+
+/* Note: if a click remover is provided, and store_end_sample is set, then
+ * the end point will be computed twice. This situation should not arise.
+ */
+static long render_playing(DUMB_IT_SIGRENDERER *sigrenderer, IT_PLAYING *playing, float volume, float main_delta, float delta, long pos, long size, sample_t **samples, int store_end_sample, int *left_to_mix)
+{+ int bits;
+
+ long size_rendered;
+
+ DUMB_VOLUME_RAMP_INFO lvol, rvol;
+
+ if (playing->flags & IT_PLAYING_DEAD)
+ return 0;
+
+ if (*left_to_mix <= 0)
+ volume = 0;
+
+ {+ int quality = sigrenderer->resampling_quality;
+ if (playing->sample->max_resampling_quality >= 0 && quality > playing->sample->max_resampling_quality)
+ quality = playing->sample->max_resampling_quality;
+ playing->resampler.quality = quality;
+ resampler_set_quality(playing->resampler.fir_resampler[0], quality);
+ resampler_set_quality(playing->resampler.fir_resampler[1], quality);
+ }
+
+ bits = playing->sample->flags & IT_SAMPLE_16BIT ? 16 : 8;
+
+ if (volume == 0) {+ if (playing->sample->flags & IT_SAMPLE_STEREO)
+ size_rendered = dumb_resample_n_2_1(bits, &playing->resampler, NULL, size, 0, 0, delta);
+ else
+ size_rendered = dumb_resample_n_1_1(bits, &playing->resampler, NULL, size, 0, delta);
+ } else {+ lvol.volume = playing->ramp_volume [0];
+ rvol.volume = playing->ramp_volume [1];
+ lvol.delta = playing->ramp_delta [0] * main_delta;
+ rvol.delta = playing->ramp_delta [1] * main_delta;
+ lvol.target = playing->float_volume [0];
+ rvol.target = playing->float_volume [1];
+ rvol.mix = lvol.mix = volume;
+ lvol.declick_stage = rvol.declick_stage = playing->declick_stage;
+ if (sigrenderer->n_channels >= 2) {+ if (playing->sample->flags & IT_SAMPLE_STEREO) {+ if (sigrenderer->click_remover) {+ sample_t click[2];
+ dumb_resample_get_current_sample_n_2_2(bits, &playing->resampler, &lvol, &rvol, click);
+ dumb_record_click(sigrenderer->click_remover[0], pos, click[0]);
+ dumb_record_click(sigrenderer->click_remover[1], pos, click[1]);
+ }
+ size_rendered = dumb_resample_n_2_2(bits, &playing->resampler, samples[0] + pos*2, size, &lvol, &rvol, delta);
+ if (store_end_sample) {+ sample_t click[2];
+ dumb_resample_get_current_sample_n_2_2(bits, &playing->resampler, &lvol, &rvol, click);
+ samples[0][(pos + size_rendered) * 2] = click[0];
+ samples[0][(pos + size_rendered) * 2 + 1] = click[1];
+ }
+ if (sigrenderer->click_remover) {+ sample_t click[2];
+ dumb_resample_get_current_sample_n_2_2(bits, &playing->resampler, &lvol, &rvol, click);
+ dumb_record_click(sigrenderer->click_remover[0], pos + size_rendered, -click[0]);
+ dumb_record_click(sigrenderer->click_remover[1], pos + size_rendered, -click[1]);
+ }
+ } else {+ if (sigrenderer->click_remover) {+ sample_t click[2];
+ dumb_resample_get_current_sample_n_1_2(bits, &playing->resampler, &lvol, &rvol, click);
+ dumb_record_click(sigrenderer->click_remover[0], pos, click[0]);
+ dumb_record_click(sigrenderer->click_remover[1], pos, click[1]);
+ }
+ size_rendered = dumb_resample_n_1_2(bits, &playing->resampler, samples[0] + pos*2, size, &lvol, &rvol, delta);
+ if (store_end_sample) {+ sample_t click[2];
+ dumb_resample_get_current_sample_n_1_2(bits, &playing->resampler, &lvol, &rvol, click);
+ samples[0][(pos + size_rendered) * 2] = click[0];
+ samples[0][(pos + size_rendered) * 2 + 1] = click[1];
+ }
+ if (sigrenderer->click_remover) {+ sample_t click[2];
+ dumb_resample_get_current_sample_n_1_2(bits, &playing->resampler, &lvol, &rvol, click);
+ dumb_record_click(sigrenderer->click_remover[0], pos + size_rendered, -click[0]);
+ dumb_record_click(sigrenderer->click_remover[1], pos + size_rendered, -click[1]);
+ }
+ }
+ } else {+ if (playing->sample->flags & IT_SAMPLE_STEREO) {+ if (sigrenderer->click_remover) {+ sample_t click;
+ dumb_resample_get_current_sample_n_2_1(bits, &playing->resampler, &lvol, &rvol, &click);
+ dumb_record_click(sigrenderer->click_remover[0], pos, click);
+ }
+ size_rendered = dumb_resample_n_2_1(bits, &playing->resampler, samples[0] + pos, size, &lvol, &rvol, delta);
+ if (store_end_sample)
+ dumb_resample_get_current_sample_n_2_1(bits, &playing->resampler, &lvol, &rvol, &samples[0][pos + size_rendered]);
+ if (sigrenderer->click_remover) {+ sample_t click;
+ dumb_resample_get_current_sample_n_2_1(bits, &playing->resampler, &lvol, &rvol, &click);
+ dumb_record_click(sigrenderer->click_remover[0], pos + size_rendered, -click);
+ }
+ } else {+ if (sigrenderer->click_remover) {+ sample_t click;
+ dumb_resample_get_current_sample_n_1_1(bits, &playing->resampler, &lvol, &click);
+ dumb_record_click(sigrenderer->click_remover[0], pos, click);
+ }
+ size_rendered = dumb_resample_n_1_1(bits, &playing->resampler, samples[0] + pos, size, &lvol, delta);
+ if (store_end_sample)
+ dumb_resample_get_current_sample_n_1_1(bits, &playing->resampler, &lvol, &samples[0][pos + size_rendered]);
+ if (sigrenderer->click_remover) {+ sample_t click;
+ dumb_resample_get_current_sample_n_1_1(bits, &playing->resampler, &lvol, &click);
+ dumb_record_click(sigrenderer->click_remover[0], pos + size_rendered, -click);
+ }
+ }
+ }
+ playing->ramp_volume [0] = lvol.volume;
+ playing->ramp_volume [1] = rvol.volume;
+ playing->declick_stage = (lvol.declick_stage > rvol.declick_stage) ? lvol.declick_stage : rvol.declick_stage;
+ if (playing->declick_stage >= 4)
+ playing->flags |= IT_PLAYING_DEAD;
+ (*left_to_mix)--;
+ }
+
+ if (playing->resampler.dir == 0)
+ playing->flags |= IT_PLAYING_DEAD;
+
+ return size_rendered;
+}
+
+typedef struct IT_TO_MIX
+{+ IT_PLAYING *playing;
+ float volume;
+}
+IT_TO_MIX;
+
+
+
+static int it_to_mix_compare(const void *e1, const void *e2)
+{+ if (((const IT_TO_MIX *)e1)->volume > ((const IT_TO_MIX *)e2)->volume)
+ return -1;
+
+ if (((const IT_TO_MIX *)e1)->volume < ((const IT_TO_MIX *)e2)->volume)
+ return 1;
+
+ return 0;
+}
+
+
+
+static void apply_pitch_modifications(DUMB_IT_SIGDATA *sigdata, IT_PLAYING *playing, float *delta, int *cutoff)
+{+ {+ int sample_vibrato_shift;
+ switch (playing->sample_vibrato_waveform)
+ {+ default:
+ sample_vibrato_shift = it_sine[playing->sample_vibrato_time];
+ break;
+ case 1:
+ sample_vibrato_shift = it_sawtooth[playing->sample_vibrato_time];
+ break;
+ case 2:
+ sample_vibrato_shift = it_squarewave[playing->sample_vibrato_time];
+ break;
+ case 3:
+ sample_vibrato_shift = (rand() % 129) - 64;
+ break;
+ case 4:
+ sample_vibrato_shift = it_xm_squarewave[playing->sample_vibrato_time];
+ break;
+ case 5:
+ sample_vibrato_shift = it_xm_ramp[playing->sample_vibrato_time];
+ break;
+ case 6:
+ sample_vibrato_shift = it_xm_ramp[255-playing->sample_vibrato_time];
+ break;
+ }
+
+ if (sigdata->flags & IT_WAS_AN_XM) {+ int depth = playing->sample->vibrato_depth; /* True depth */
+ if (playing->sample->vibrato_rate) {+ depth *= playing->sample_vibrato_depth; /* Tick number */
+ depth /= playing->sample->vibrato_rate; /* XM sweep */
+ }
+ sample_vibrato_shift *= depth;
+ } else
+ sample_vibrato_shift *= playing->sample_vibrato_depth >> 8;
+
+ sample_vibrato_shift >>= 4;
+
+ if (sample_vibrato_shift) {+ if ((sigdata->flags & IT_LINEAR_SLIDES) || !(sigdata->flags & IT_WAS_AN_XM))
+ *delta *= (float)pow(DUMB_PITCH_BASE, sample_vibrato_shift);
+ else {+ /* complicated! */
+ float scale = *delta / playing->delta;
+
+ *delta = (1.0f / 65536.0f) / playing->delta;
+
+ *delta -= sample_vibrato_shift / AMIGA_DIVISOR;
+
+ if (*delta < (1.0f / 65536.0f) / 32767.0f) {+ *delta = (1.0f / 65536.0f) / 32767.0f;
+ }
+
+ *delta = (1.0f / 65536.0f) / *delta * scale;
+ }
+ }
+ }
+
+ if (playing->env_instrument &&
+ (playing->enabled_envelopes & IT_ENV_PITCH))
+ {+ int p = envelope_get_y(&playing->env_instrument->pitch_envelope, &playing->pitch_envelope);
+ if (playing->env_instrument->pitch_envelope.flags & IT_ENVELOPE_PITCH_IS_FILTER)
+ *cutoff = (*cutoff * (p+(32<<IT_ENVELOPE_SHIFT))) >> (6 + IT_ENVELOPE_SHIFT);
+ else
+ *delta *= (float)pow(DUMB_PITCH_BASE, p >> (IT_ENVELOPE_SHIFT - 7));
+ }
+}
+
+
+
+static void render_normal(DUMB_IT_SIGRENDERER *sigrenderer, float volume, float delta, long pos, long size, sample_t **samples)
+{+ int i;
+
+ int n_to_mix = 0;
+ IT_TO_MIX to_mix[DUMB_IT_TOTAL_CHANNELS];
+ int left_to_mix = dumb_it_max_to_mix;
+
+ sample_t **samples_to_filter = NULL;
+
+ //int max_output = sigrenderer->max_output;
+
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {+ if (sigrenderer->channel[i].playing && !(sigrenderer->channel[i].playing->flags & IT_PLAYING_DEAD)) {+ to_mix[n_to_mix].playing = sigrenderer->channel[i].playing;
+ to_mix[n_to_mix].volume = volume == 0 ? 0 : calculate_volume(sigrenderer, sigrenderer->channel[i].playing, volume);
+ n_to_mix++;
+ }
+ }
+
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (sigrenderer->playing[i]) { /* Won't be dead; it would have been freed. */+ to_mix[n_to_mix].playing = sigrenderer->playing[i];
+ to_mix[n_to_mix].volume = volume == 0 ? 0 : calculate_volume(sigrenderer, sigrenderer->playing[i], volume);
+ n_to_mix++;
+ }
+ }
+
+ if (volume != 0)
+ qsort(to_mix, n_to_mix, sizeof(IT_TO_MIX), &it_to_mix_compare);
+
+ for (i = 0; i < n_to_mix; i++) {+ IT_PLAYING *playing = to_mix[i].playing;
+ float note_delta = delta * playing->delta;
+ int cutoff = playing->filter_cutoff << IT_ENVELOPE_SHIFT;
+ //int output = min( playing->output, max_output );
+
+ apply_pitch_modifications(sigrenderer->sigdata, playing, ¬e_delta, &cutoff);
+
+ if (cutoff != 127 << IT_ENVELOPE_SHIFT || playing->filter_resonance != 0) {+ playing->true_filter_cutoff = cutoff;
+ playing->true_filter_resonance = playing->filter_resonance;
+ }
+
+ if (volume && (playing->true_filter_cutoff != 127 << IT_ENVELOPE_SHIFT || playing->true_filter_resonance != 0)) {+ if (!samples_to_filter) {+ samples_to_filter = allocate_sample_buffer(sigrenderer->n_channels, size + 1);
+ if (!samples_to_filter) {+ render_playing(sigrenderer, playing, 0, delta, note_delta, pos, size, NULL, 0, &left_to_mix);
+ continue;
+ }
+ }
+ {+ long size_rendered;
+ DUMB_CLICK_REMOVER **cr = sigrenderer->click_remover;
+ dumb_silence(samples_to_filter[0], sigrenderer->n_channels * (size + 1));
+ sigrenderer->click_remover = NULL;
+ size_rendered = render_playing(sigrenderer, playing, volume, delta, note_delta, 0, size, samples_to_filter, 1, &left_to_mix);
+ sigrenderer->click_remover = cr;
+ if (sigrenderer->n_channels == 2) {+ it_filter(cr ? cr[0] : NULL, &playing->filter_state[0], samples[0 /*output*/], pos, samples_to_filter[0], size_rendered,
+ 2, (int)(65536.0f/delta), playing->true_filter_cutoff, playing->true_filter_resonance);
+ it_filter(cr ? cr[1] : NULL, &playing->filter_state[1], samples[0 /*output*/]+1, pos, samples_to_filter[0]+1, size_rendered,
+ 2, (int)(65536.0f/delta), playing->true_filter_cutoff, playing->true_filter_resonance);
+ } else {+ it_filter(cr ? cr[0] : NULL, &playing->filter_state[0], samples[0 /*output*/], pos, samples_to_filter[0], size_rendered,
+ 1, (int)(65536.0f/delta), playing->true_filter_cutoff, playing->true_filter_resonance);
+ }
+ // FIXME: filtering is not prevented by low left_to_mix!
+ // FIXME: change 'warning' to 'FIXME' everywhere
+ }
+ } else {+ it_reset_filter_state(&playing->filter_state[0]);
+ it_reset_filter_state(&playing->filter_state[1]);
+ render_playing(sigrenderer, playing, volume, delta, note_delta, pos, size, samples /*&samples[output]*/, 0, &left_to_mix);
+ }
+ }
+
+ destroy_sample_buffer(samples_to_filter);
+
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {+ if (sigrenderer->channel[i].playing) {+ //if ((sigrenderer->channel[i].playing->flags & (IT_PLAYING_BACKGROUND | IT_PLAYING_DEAD)) == (IT_PLAYING_BACKGROUND | IT_PLAYING_DEAD)) {+ // This change was made so Gxx would work correctly when a note faded out or whatever. Let's hope nothing else was broken by it.
+ if (sigrenderer->channel[i].playing->flags & IT_PLAYING_DEAD) {+ free_playing(sigrenderer->channel[i].playing);
+ sigrenderer->channel[i].playing = NULL;
+ }
+ }
+ }
+
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (sigrenderer->playing[i]) {+ if (sigrenderer->playing[i]->flags & IT_PLAYING_DEAD) {+ free_playing(sigrenderer->playing[i]);
+ sigrenderer->playing[i] = NULL;
+ }
+ }
+ }
+}
+
+
+
+static void render_surround(DUMB_IT_SIGRENDERER *sigrenderer, float volume, float delta, long pos, long size, sample_t **samples)
+{+ int i;
+
+ int n_to_mix = 0, n_to_mix_surround = 0;
+ IT_TO_MIX to_mix[DUMB_IT_TOTAL_CHANNELS];
+ IT_TO_MIX to_mix_surround[DUMB_IT_TOTAL_CHANNELS];
+ int left_to_mix = dumb_it_max_to_mix;
+
+ int saved_channels = sigrenderer->n_channels;
+
+ sample_t **samples_to_filter = NULL;
+
+ DUMB_CLICK_REMOVER **saved_cr = sigrenderer->click_remover;
+
+ //int max_output = sigrenderer->max_output;
+
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {+ if (sigrenderer->channel[i].playing && !(sigrenderer->channel[i].playing->flags & IT_PLAYING_DEAD)) {+ IT_PLAYING *playing = sigrenderer->channel[i].playing;
+ IT_TO_MIX *_to_mix = IT_IS_SURROUND_SHIFTED(playing->pan) ? to_mix_surround + n_to_mix_surround++ : to_mix + n_to_mix++;
+ _to_mix->playing = playing;
+ _to_mix->volume = volume == 0 ? 0 : calculate_volume(sigrenderer, playing, volume);
+ }
+ }
+
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (sigrenderer->playing[i]) { /* Won't be dead; it would have been freed. */+ IT_PLAYING *playing = sigrenderer->playing[i];
+ IT_TO_MIX *_to_mix = IT_IS_SURROUND_SHIFTED(playing->pan) ? to_mix_surround + n_to_mix_surround++ : to_mix + n_to_mix++;
+ _to_mix->playing = playing;
+ _to_mix->volume = volume == 0 ? 0 : calculate_volume(sigrenderer, playing, volume);
+ }
+ }
+
+ if (volume != 0) {+ qsort(to_mix, n_to_mix, sizeof(IT_TO_MIX), &it_to_mix_compare);
+ qsort(to_mix_surround, n_to_mix_surround, sizeof(IT_TO_MIX), &it_to_mix_compare);
+ }
+
+ sigrenderer->n_channels = 2;
+
+ for (i = 0; i < n_to_mix; i++) {+ IT_PLAYING *playing = to_mix[i].playing;
+ float note_delta = delta * playing->delta;
+ int cutoff = playing->filter_cutoff << IT_ENVELOPE_SHIFT;
+ //int output = min( playing->output, max_output );
+
+ apply_pitch_modifications(sigrenderer->sigdata, playing, ¬e_delta, &cutoff);
+
+ if (cutoff != 127 << IT_ENVELOPE_SHIFT || playing->filter_resonance != 0) {+ playing->true_filter_cutoff = cutoff;
+ playing->true_filter_resonance = playing->filter_resonance;
+ }
+
+ if (volume && (playing->true_filter_cutoff != 127 << IT_ENVELOPE_SHIFT || playing->true_filter_resonance != 0)) {+ if (!samples_to_filter) {+ samples_to_filter = allocate_sample_buffer(sigrenderer->n_channels, size + 1);
+ if (!samples_to_filter) {+ render_playing(sigrenderer, playing, 0, delta, note_delta, pos, size, NULL, 0, &left_to_mix);
+ continue;
+ }
+ }
+ {+ long size_rendered;
+ DUMB_CLICK_REMOVER **cr = sigrenderer->click_remover;
+ dumb_silence(samples_to_filter[0], sigrenderer->n_channels * (size + 1));
+ sigrenderer->click_remover = NULL;
+ size_rendered = render_playing(sigrenderer, playing, volume, delta, note_delta, 0, size, samples_to_filter, 1, &left_to_mix);
+ sigrenderer->click_remover = cr;
+ it_filter(cr ? cr[0] : NULL, &playing->filter_state[0], samples[0 /*output*/], pos, samples_to_filter[0], size_rendered,
+ 2, (int)(65536.0f/delta), playing->true_filter_cutoff, playing->true_filter_resonance);
+ it_filter(cr ? cr[1] : NULL, &playing->filter_state[1], samples[0 /*output*/]+1, pos, samples_to_filter[0]+1, size_rendered,
+ 2, (int)(65536.0f/delta), playing->true_filter_cutoff, playing->true_filter_resonance);
+ }
+ } else {+ it_reset_filter_state(&playing->filter_state[0]);
+ it_reset_filter_state(&playing->filter_state[1]);
+ render_playing(sigrenderer, playing, volume, delta, note_delta, pos, size, samples /*&samples[output]*/, 0, &left_to_mix);
+ }
+ }
+
+ sigrenderer->n_channels = 1;
+ sigrenderer->click_remover = saved_cr ? saved_cr + 2 : 0;
+
+ for (i = 0; i < n_to_mix_surround; i++) {+ IT_PLAYING *playing = to_mix_surround[i].playing;
+ float note_delta = delta * playing->delta;
+ int cutoff = playing->filter_cutoff << IT_ENVELOPE_SHIFT;
+ //int output = min( playing->output, max_output );
+
+ apply_pitch_modifications(sigrenderer->sigdata, playing, ¬e_delta, &cutoff);
+
+ if (cutoff != 127 << IT_ENVELOPE_SHIFT || playing->filter_resonance != 0) {+ playing->true_filter_cutoff = cutoff;
+ playing->true_filter_resonance = playing->filter_resonance;
+ }
+
+ if (volume && (playing->true_filter_cutoff != 127 << IT_ENVELOPE_SHIFT || playing->true_filter_resonance != 0)) {+ if (!samples_to_filter) {+ samples_to_filter = allocate_sample_buffer(sigrenderer->n_channels, size + 1);
+ if (!samples_to_filter) {+ render_playing(sigrenderer, playing, 0, delta, note_delta, pos, size, NULL, 0, &left_to_mix);
+ continue;
+ }
+ }
+ {+ long size_rendered;
+ DUMB_CLICK_REMOVER **cr = sigrenderer->click_remover;
+ dumb_silence(samples_to_filter[0], size + 1);
+ sigrenderer->click_remover = NULL;
+ size_rendered = render_playing(sigrenderer, playing, volume, delta, note_delta, 0, size, samples_to_filter, 1, &left_to_mix);
+ sigrenderer->click_remover = cr;
+ it_filter(cr ? cr[0] : NULL, &playing->filter_state[0], samples[1 /*output*/], pos, samples_to_filter[0], size_rendered,
+ 1, (int)(65536.0f/delta), playing->true_filter_cutoff, playing->true_filter_resonance);
+ // FIXME: filtering is not prevented by low left_to_mix!
+ // FIXME: change 'warning' to 'FIXME' everywhere
+ }
+ } else {+ it_reset_filter_state(&playing->filter_state[0]);
+ it_reset_filter_state(&playing->filter_state[1]);
+ render_playing(sigrenderer, playing, volume, delta, note_delta, pos, size, &samples[1], 0, &left_to_mix);
+ }
+ }
+
+ sigrenderer->n_channels = saved_channels;
+ sigrenderer->click_remover = saved_cr;
+
+ destroy_sample_buffer(samples_to_filter);
+
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {+ if (sigrenderer->channel[i].playing) {+ //if ((sigrenderer->channel[i].playing->flags & (IT_PLAYING_BACKGROUND | IT_PLAYING_DEAD)) == (IT_PLAYING_BACKGROUND | IT_PLAYING_DEAD)) {+ // This change was made so Gxx would work correctly when a note faded out or whatever. Let's hope nothing else was broken by it.
+ if (sigrenderer->channel[i].playing->flags & IT_PLAYING_DEAD) {+ free_playing(sigrenderer->channel[i].playing);
+ sigrenderer->channel[i].playing = NULL;
+ }
+ }
+ }
+
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (sigrenderer->playing[i]) {+ if (sigrenderer->playing[i]->flags & IT_PLAYING_DEAD) {+ free_playing(sigrenderer->playing[i]);
+ sigrenderer->playing[i] = NULL;
+ }
+ }
+ }
+}
+
+
+
+static void render(DUMB_IT_SIGRENDERER *sigrenderer, float volume, float delta, long pos, long size, sample_t **samples)
+{+ if (size == 0) return;
+ if (sigrenderer->n_channels == 1 || sigrenderer->n_channels == 2)
+ render_normal(sigrenderer, volume, delta, pos, size, samples);
+ else if (sigrenderer->n_channels == 3)
+ render_surround(sigrenderer, volume, delta, pos, size, samples);
+}
+
+
+
+static DUMB_IT_SIGRENDERER *init_sigrenderer(DUMB_IT_SIGDATA *sigdata, int n_channels, int startorder, IT_CALLBACKS *callbacks, DUMB_CLICK_REMOVER **cr)
+{+ DUMB_IT_SIGRENDERER *sigrenderer;
+ int i;
+
+ if (startorder > sigdata->n_orders) {+ free(callbacks);
+ dumb_destroy_click_remover_array(n_channels, cr);
+ return NULL;
+ }
+
+ sigrenderer = malloc(sizeof(*sigrenderer));
+ if (!sigrenderer) {+ free(callbacks);
+ dumb_destroy_click_remover_array(n_channels, cr);
+ return NULL;
+ }
+
+ sigrenderer->callbacks = callbacks;
+ sigrenderer->click_remover = cr;
+
+ sigrenderer->sigdata = sigdata;
+ sigrenderer->n_channels = n_channels;
+ sigrenderer->resampling_quality = dumb_resampling_quality;
+ sigrenderer->ramp_style = DUMB_IT_RAMP_FULL;
+ sigrenderer->globalvolume = sigdata->global_volume;
+ sigrenderer->tempo = sigdata->tempo;
+
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {+ IT_CHANNEL *channel = &sigrenderer->channel[i];
+#if IT_CHANNEL_MUTED != 1
+#error this is wrong
+#endif
+ channel->flags = sigdata->channel_pan[i] >> 7;
+ channel->volume = (sigdata->flags & IT_WAS_AN_XM) ? 0 : 64;
+ channel->pan = sigdata->channel_pan[i] & 0x7F;
+ channel->truepan = channel->pan << IT_ENVELOPE_SHIFT;
+ channel->channelvolume = sigdata->channel_volume[i];
+ channel->instrument = 0;
+ channel->sample = 0;
+ channel->note = IT_NOTE_OFF;
+ channel->SFmacro = 0;
+ channel->filter_cutoff = 127;
+ channel->filter_resonance = 0;
+ channel->new_note_action = 0xFF;
+ channel->xm_retrig = 0;
+ channel->retrig_tick = 0;
+ channel->tremor_time = 0;
+ channel->vibrato_waveform = 0;
+ channel->tremolo_waveform = 0;
+ channel->panbrello_waveform = 0;
+ channel->glissando = 0;
+ channel->toneslide = 0;
+ channel->ptm_toneslide = 0;
+ channel->ptm_last_toneslide = 0;
+ channel->okt_toneslide = 0;
+ channel->midi_state = 0;
+ channel->lastvolslide = 0;
+ channel->lastDKL = 0;
+ channel->lastEF = 0;
+ channel->lastG = 0;
+ channel->lastHspeed = 0;
+ channel->lastHdepth = 0;
+ channel->lastRspeed = 0;
+ channel->lastRdepth = 0;
+ channel->lastYspeed = 0;
+ channel->lastYdepth = 0;
+ channel->lastI = 0;
+ channel->lastJ = 0;
+ channel->lastN = 0;
+ channel->lastO = 0;
+ channel->high_offset = 0;
+ channel->lastP = 0;
+ channel->lastQ = 0;
+ channel->lastS = 0;
+ channel->pat_loop_row = 0;
+ channel->pat_loop_count = 0;
+ channel->pat_loop_end_row = 0;
+ channel->lastW = 0;
+ channel->xm_lastE1 = 0;
+ channel->xm_lastE2 = 0;
+ channel->xm_lastEA = 0;
+ channel->xm_lastEB = 0;
+ channel->xm_lastX1 = 0;
+ channel->xm_lastX2 = 0;
+ channel->inv_loop_delay = 0;
+ channel->inv_loop_speed = 0;
+ channel->inv_loop_offset = 0;
+ channel->playing = NULL;
+#ifdef BIT_ARRAY_BULLSHIT
+ channel->played_patjump = NULL;
+ channel->played_patjump_order = 0xFFFE;
+#endif
+ //channel->output = 0;
+ }
+
+ if (sigdata->flags & IT_WAS_A_669)
+ reset_effects(sigrenderer);
+
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++)
+ sigrenderer->playing[i] = NULL;
+
+ sigrenderer->speed = sigdata->speed;
+
+ sigrenderer->processrow = 0xFFFE;
+ sigrenderer->n_rows = 0;
+ sigrenderer->breakrow = 0;
+ sigrenderer->rowcount = 1;
+ sigrenderer->order = startorder;
+ /* meh!
+ if (startorder > 0) {+ int n;
+ for (n = startorder - 1; n >= 0; n--) {+ if (sigdata->order[n] > sigdata->n_patterns) {+ sigrenderer->restart_position = n + 1;
+ break;
+ }
+ }
+ }
+ */
+ if (startorder > 0) {+ sigrenderer->restart_position = startorder;
+ } else {+ sigrenderer->restart_position = sigdata->restart_position;
+ }
+
+ sigrenderer->row = 0;
+ sigrenderer->processorder = startorder - 1;
+ sigrenderer->tick = 1;
+
+#ifdef BIT_ARRAY_BULLSHIT
+ sigrenderer->played = bit_array_create(sigdata->n_orders * 256);
+
+ sigrenderer->looped = 0;
+ sigrenderer->time_played = 0;
+ sigrenderer->row_timekeeper = timekeeping_array_create(sigdata->n_orders * 256);
+#endif
+
+ {+ int order;
+ for (order = 0; order < sigdata->n_orders; order++) {+ int n = sigdata->order[order];
+ if (n < sigdata->n_patterns) goto found_valid_order;
+#ifdef INVALID_ORDERS_END_SONG
+ if (n != IT_ORDER_SKIP)
+#else
+ if (n == IT_ORDER_END)
+#endif
+ break;
+
+#ifdef BIT_ARRAY_BULLSHIT
+ /* Fix for played order detection for songs which have skips at the start of the orders list */
+ for (n = 0; n < 256; n++) {+ bit_array_set(sigrenderer->played, order * 256 + n);
+ timekeeping_array_push(sigrenderer->row_timekeeper, order * 256 + n, 0);
+ timekeeping_array_bump(sigrenderer->row_timekeeper, order * 256 + n);
+ }
+#endif
+ }
+ /* If we get here, there were no valid orders in the song. */
+ _dumb_it_end_sigrenderer(sigrenderer);
+ return NULL;
+ }
+ found_valid_order:
+
+ sigrenderer->time_left = 0;
+ sigrenderer->sub_time_left = 0;
+
+ sigrenderer->gvz_time = 0;
+ sigrenderer->gvz_sub_time = 0;
+
+ //sigrenderer->max_output = 0;
+
+ if ( !(sigdata->flags & IT_WAS_PROCESSED) ) {+ dumb_it_add_lpc( sigdata );
+
+ sigdata->flags |= IT_WAS_PROCESSED;
+ }
+
+ return sigrenderer;
+}
+
+
+void dumb_it_set_resampling_quality(DUMB_IT_SIGRENDERER * sigrenderer, int quality)
+{+ if (sigrenderer && quality >= 0 && quality < DUMB_RQ_N_LEVELS)
+ {+ int i;
+ sigrenderer->resampling_quality = quality;
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {+ if (sigrenderer->channel[i].playing)
+ {+ IT_PLAYING * playing = sigrenderer->channel[i].playing;
+ playing->resampling_quality = quality;
+ playing->resampler.quality = quality;
+ resampler_set_quality(playing->resampler.fir_resampler[0], quality);
+ resampler_set_quality(playing->resampler.fir_resampler[1], quality);
+ }
+ }
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++) {+ if (sigrenderer->playing[i]) {+ IT_PLAYING * playing = sigrenderer->playing[i];
+ playing->resampling_quality = quality;
+ playing->resampler.quality = quality;
+ resampler_set_quality(playing->resampler.fir_resampler[0], quality);
+ resampler_set_quality(playing->resampler.fir_resampler[1], quality);
+ }
+ }
+ }
+}
+
+
+void dumb_it_set_ramp_style(DUMB_IT_SIGRENDERER * sigrenderer, int ramp_style) {+ if (sigrenderer && ramp_style >= 0 && ramp_style <= 2) {+ sigrenderer->ramp_style = ramp_style;
+ }
+}
+
+
+void dumb_it_set_loop_callback(DUMB_IT_SIGRENDERER *sigrenderer, int (*callback)(void *data), void *data)
+{+ if (sigrenderer) {+ sigrenderer->callbacks->loop = callback;
+ sigrenderer->callbacks->loop_data = data;
+ }
+}
+
+
+
+void dumb_it_set_xm_speed_zero_callback(DUMB_IT_SIGRENDERER *sigrenderer, int (*callback)(void *data), void *data)
+{+ if (sigrenderer) {+ sigrenderer->callbacks->xm_speed_zero = callback;
+ sigrenderer->callbacks->xm_speed_zero_data = data;
+ }
+}
+
+
+
+void dumb_it_set_midi_callback(DUMB_IT_SIGRENDERER *sigrenderer, int (*callback)(void *data, int channel, unsigned char midi_byte), void *data)
+{+ if (sigrenderer) {+ sigrenderer->callbacks->midi = callback;
+ sigrenderer->callbacks->midi_data = data;
+ }
+}
+
+
+
+void dumb_it_set_global_volume_zero_callback(DUMB_IT_SIGRENDERER *sigrenderer, int (*callback)(void *data), void *data)
+{+ if (sigrenderer) {+ sigrenderer->callbacks->global_volume_zero = callback;
+ sigrenderer->callbacks->global_volume_zero_data = data;
+ }
+}
+
+
+
+static IT_CALLBACKS *create_callbacks(void)
+{+ IT_CALLBACKS *callbacks = malloc(sizeof(*callbacks));
+ if (!callbacks) return NULL;
+ callbacks->loop = NULL;
+ callbacks->xm_speed_zero = NULL;
+ callbacks->midi = NULL;
+ callbacks->global_volume_zero = NULL;
+ return callbacks;
+}
+
+
+
+static DUMB_IT_SIGRENDERER *dumb_it_init_sigrenderer(DUMB_IT_SIGDATA *sigdata, int n_channels, int startorder)
+{+ IT_CALLBACKS *callbacks;
+
+ if (!sigdata) return NULL;
+
+ callbacks = create_callbacks();
+ if (!callbacks) return NULL;
+
+ return init_sigrenderer(sigdata, n_channels, startorder, callbacks,
+ dumb_create_click_remover_array(n_channels));
+}
+
+
+
+DUH_SIGRENDERER *dumb_it_start_at_order(DUH *duh, int n_channels, int startorder)
+{+ DUMB_IT_SIGDATA *itsd = duh_get_it_sigdata(duh);
+ DUMB_IT_SIGRENDERER *itsr = dumb_it_init_sigrenderer(itsd, n_channels, startorder);
+ /*duh->length = dumb_it_build_checkpoints(itsd, startorder);*/
+ return duh_encapsulate_it_sigrenderer(itsr, n_channels, 0);
+}
+
+
+
+static sigrenderer_t *it_start_sigrenderer(DUH *duh, sigdata_t *vsigdata, int n_channels, long pos)
+{+ DUMB_IT_SIGDATA *sigdata = vsigdata;
+ DUMB_IT_SIGRENDERER *sigrenderer;
+
+ (void)duh;
+
+ {+ IT_CALLBACKS *callbacks = create_callbacks();
+ if (!callbacks) return NULL;
+
+ if (sigdata->checkpoint) {+ IT_CHECKPOINT *checkpoint = sigdata->checkpoint;
+ while (checkpoint->next && checkpoint->next->time < pos)
+ checkpoint = checkpoint->next;
+ sigrenderer = dup_sigrenderer(checkpoint->sigrenderer, n_channels, callbacks);
+ if (!sigrenderer) return NULL;
+ sigrenderer->click_remover = dumb_create_click_remover_array(n_channels);
+ pos -= checkpoint->time;
+ } else {+ sigrenderer = init_sigrenderer(sigdata, n_channels, 0, callbacks,
+ dumb_create_click_remover_array(n_channels));
+ if (!sigrenderer) return NULL;
+ }
+ }
+
+ while (pos > 0 && pos >= sigrenderer->time_left) {+ render(sigrenderer, 0, 1.0f, 0, sigrenderer->time_left, NULL);
+
+#ifdef BIT_ARRAY_BULLSHIT
+ sigrenderer->time_played += (LONG_LONG)sigrenderer->time_left << 16;
+#endif
+
+ pos -= sigrenderer->time_left;
+ sigrenderer->time_left = 0;
+
+ if (process_tick(sigrenderer)) {+ _dumb_it_end_sigrenderer(sigrenderer);
+ return NULL;
+ }
+ }
+
+ render(sigrenderer, 0, 1.0f, 0, pos, NULL);
+ sigrenderer->time_left -= pos;
+
+#ifdef BIT_ARRAY_BULLSHIT
+ sigrenderer->time_played += (LONG_LONG)pos << 16;
+#endif
+
+ return sigrenderer;
+}
+
+
+
+static long it_sigrenderer_get_samples(
+ sigrenderer_t *vsigrenderer,
+ float volume, float delta,
+ long size, sample_t **samples
+)
+{+ DUMB_IT_SIGRENDERER *sigrenderer = vsigrenderer;
+ long pos;
+ int dt;
+ long todo;
+ int ret;
+ LONG_LONG t;
+
+ if (sigrenderer->order < 0) return 0; // problematic
+
+ pos = 0;
+ dt = (int)(delta * 65536.0f + 0.5f);
+
+ /* When samples is finally used in render_playing(), it won't be used if
+ * volume is 0.
+ */
+ if (!samples) volume = 0;
+
+ for (;;) {+ todo = (long)((((LONG_LONG)sigrenderer->time_left << 16) | sigrenderer->sub_time_left) / dt);
+
+ if (todo >= size)
+ break;
+
+ render(sigrenderer, volume, delta, pos, todo, samples);
+
+ pos += todo;
+ size -= todo;
+
+ t = sigrenderer->sub_time_left - (LONG_LONG)todo * dt;
+ sigrenderer->sub_time_left = (long)t & 65535;
+ sigrenderer->time_left += (long)(t >> 16);
+
+#ifdef BIT_ARRAY_BULLSHIT
+ sigrenderer->time_played += (LONG_LONG)todo * dt;
+#endif
+
+ ret = process_tick(sigrenderer);
+
+ if (ret) {+ sigrenderer->order = -1;
+ sigrenderer->row = -1;
+ }
+
+#ifdef BIT_ARRAY_BULLSHIT
+ if (sigrenderer->looped == 1) {+ sigrenderer->looped = -1;
+ size = 0;
+ timekeeping_array_reset(sigrenderer->row_timekeeper, sigrenderer->order * 256 + sigrenderer->row);
+ sigrenderer->time_played = timekeeping_array_get_item(sigrenderer->row_timekeeper, sigrenderer->order * 256 + sigrenderer->row);
+ break;
+ }
+#endif
+
+ if (ret) {+ return pos;
+ }
+ }
+
+ render(sigrenderer, volume, delta, pos, size, samples);
+
+ pos += size;
+
+ t = sigrenderer->sub_time_left - (LONG_LONG)size * dt;
+ sigrenderer->sub_time_left = (long)t & 65535;
+ sigrenderer->time_left += (long)(t >> 16);
+
+#ifdef BIT_ARRAY_BULLSHIT
+ sigrenderer->time_played += (LONG_LONG)size * dt;
+#endif
+
+ if (samples)
+ dumb_remove_clicks_array(sigrenderer->n_channels, sigrenderer->click_remover, samples, pos, 512.0f / delta);
+
+ return pos;
+}
+
+
+
+static void it_sigrenderer_get_current_sample(sigrenderer_t *vsigrenderer, float volume, sample_t *samples)
+{+ DUMB_IT_SIGRENDERER *sigrenderer = vsigrenderer;
+ (void)volume; // for consideration: in any of these such functions, is 'volume' going to be required?
+ dumb_click_remover_get_offset_array(sigrenderer->n_channels, sigrenderer->click_remover, samples);
+}
+
+
+
+void _dumb_it_end_sigrenderer(sigrenderer_t *vsigrenderer)
+{+ DUMB_IT_SIGRENDERER *sigrenderer = vsigrenderer;
+
+ int i;
+
+ if (sigrenderer) {+ for (i = 0; i < DUMB_IT_N_CHANNELS; i++) {+ if (sigrenderer->channel[i].playing)
+ free_playing(sigrenderer->channel[i].playing);
+#ifdef BIT_ARRAY_BULLSHIT
+ bit_array_destroy(sigrenderer->channel[i].played_patjump);
+#endif
+ }
+
+ for (i = 0; i < DUMB_IT_N_NNA_CHANNELS; i++)
+ if (sigrenderer->playing[i])
+ free_playing(sigrenderer->playing[i]);
+
+ dumb_destroy_click_remover_array(sigrenderer->n_channels, sigrenderer->click_remover);
+
+ if (sigrenderer->callbacks)
+ free(sigrenderer->callbacks);
+
+#ifdef BIT_ARRAY_BULLSHIT
+ bit_array_destroy(sigrenderer->played);
+
+ timekeeping_array_destroy(sigrenderer->row_timekeeper);
+#endif
+
+ free(vsigrenderer);
+ }
+}
+
+
+
+#ifdef BIT_ARRAY_BULLSHIT
+static long it_sigrenderer_get_position(sigrenderer_t *vsigrenderer)
+{+ DUMB_IT_SIGRENDERER *sigrenderer = (DUMB_IT_SIGRENDERER *) vsigrenderer;
+
+ return (long)(sigrenderer->time_played >> 16);
+}
+#endif
+
+
+
+DUH_SIGTYPE_DESC _dumb_sigtype_it = {+ SIGTYPE_IT,
+ NULL,
+ &it_start_sigrenderer,
+ NULL,
+ &it_sigrenderer_get_samples,
+ &it_sigrenderer_get_current_sample,
+#ifdef BIT_ARRAY_BULLSHIT
+ &it_sigrenderer_get_position,
+#else
+ NULL,
+#endif
+ &_dumb_it_end_sigrenderer,
+ &_dumb_it_unload_sigdata
+};
+
+
+
+DUH_SIGRENDERER *duh_encapsulate_it_sigrenderer(DUMB_IT_SIGRENDERER *it_sigrenderer, int n_channels, long pos)
+{+ return duh_encapsulate_raw_sigrenderer(it_sigrenderer, &_dumb_sigtype_it, n_channels, pos);
+}
+
+
+
+DUMB_IT_SIGRENDERER *duh_get_it_sigrenderer(DUH_SIGRENDERER *sigrenderer)
+{+ return duh_get_raw_sigrenderer(sigrenderer, SIGTYPE_IT);
+}
+
+
+
+/* Values of 64 or more will access NNA channels here. */
+void dumb_it_sr_get_channel_state(DUMB_IT_SIGRENDERER *sr, int channel, DUMB_IT_CHANNEL_STATE *state)
+{+ IT_PLAYING *playing;
+ int t; /* temporary var for holding accurate pan and filter cutoff */
+ float delta;
+ ASSERT(channel < DUMB_IT_TOTAL_CHANNELS);
+ if (!sr) { state->sample = 0; return; }+ if (channel >= DUMB_IT_N_CHANNELS) {+ playing = sr->playing[channel - DUMB_IT_N_CHANNELS];
+ if (!playing) { state->sample = 0; return; }+ } else {+ playing = sr->channel[channel].playing;
+ if (!playing) { state->sample = 0; return; }+ }
+
+ if (playing->flags & IT_PLAYING_DEAD) { state->sample = 0; return; }+
+ state->channel = (int)(playing->channel - sr->channel);
+ state->sample = playing->sampnum;
+ state->volume = calculate_volume(sr, playing, 1.0f);
+
+ t = apply_pan_envelope(playing);
+ state->pan = (unsigned char)((t + 128) >> IT_ENVELOPE_SHIFT);
+ state->subpan = (signed char)t;
+
+ delta = playing->delta * 65536.0f;
+ t = playing->filter_cutoff << IT_ENVELOPE_SHIFT;
+ apply_pitch_modifications(sr->sigdata, playing, &delta, &t);
+ state->freq = (int)delta;
+ if (t == 127 << IT_ENVELOPE_SHIFT && playing->filter_resonance == 0) {+ state->filter_resonance = playing->true_filter_resonance;
+ t = playing->true_filter_cutoff;
+ } else
+ state->filter_resonance = playing->filter_resonance;
+ state->filter_cutoff = (unsigned char)(t >> 8);
+ state->filter_subcutoff = (unsigned char)t;
+}
+
+
+
+int dumb_it_callback_terminate(void *data)
+{+ (void)data;
+ return 1;
+}
+
+
+
+int dumb_it_callback_midi_block(void *data, int channel, unsigned char midi_byte)
+{+ (void)data;
+ (void)channel;
+ (void)midi_byte;
+ return 1;
+}
+
+
+
+#define IT_CHECKPOINT_INTERVAL (30 * 65536) /* Half a minute */
+
+#define FUCKIT_THRESHOLD (120 * 60 * 65536) /* two hours? probably a pattern loop mess... */
+
+/* Returns the length of the module, up until it first loops. */
+long dumb_it_build_checkpoints(DUMB_IT_SIGDATA *sigdata, int startorder)
+{+ IT_CHECKPOINT *checkpoint;
+ if (!sigdata) return 0;
+ checkpoint = sigdata->checkpoint;
+ while (checkpoint) {+ IT_CHECKPOINT *next = checkpoint->next;
+ _dumb_it_end_sigrenderer(checkpoint->sigrenderer);
+ free(checkpoint);
+ checkpoint = next;
+ }
+ sigdata->checkpoint = NULL;
+ checkpoint = malloc(sizeof(*checkpoint));
+ if (!checkpoint) return 0;
+ checkpoint->time = 0;
+ checkpoint->sigrenderer = dumb_it_init_sigrenderer(sigdata, 0, startorder);
+ if (!checkpoint->sigrenderer) {+ free(checkpoint);
+ return 0;
+ }
+ checkpoint->sigrenderer->callbacks->loop = &dumb_it_callback_terminate;
+ checkpoint->sigrenderer->callbacks->xm_speed_zero = &dumb_it_callback_terminate;
+ checkpoint->sigrenderer->callbacks->global_volume_zero = &dumb_it_callback_terminate;
+
+ if (sigdata->checkpoint)
+ {+ IT_CHECKPOINT *checkpoint = sigdata->checkpoint;
+ while (checkpoint) {+ IT_CHECKPOINT *next = checkpoint->next;
+ _dumb_it_end_sigrenderer(checkpoint->sigrenderer);
+ free(checkpoint);
+ checkpoint = next;
+ }
+ }
+
+ sigdata->checkpoint = checkpoint;
+
+ for (;;) {+ long l;
+ DUMB_IT_SIGRENDERER *sigrenderer = dup_sigrenderer(checkpoint->sigrenderer, 0, checkpoint->sigrenderer->callbacks);
+ checkpoint->sigrenderer->callbacks = NULL;
+ if (!sigrenderer) {+ checkpoint->next = NULL;
+ return checkpoint->time;
+ }
+
+ l = it_sigrenderer_get_samples(sigrenderer, 0, 1.0f, IT_CHECKPOINT_INTERVAL, NULL);
+ if (l < IT_CHECKPOINT_INTERVAL) {+ _dumb_it_end_sigrenderer(sigrenderer);
+ checkpoint->next = NULL;
+ return checkpoint->time + l;
+ }
+
+ checkpoint->next = malloc(sizeof(*checkpoint->next));
+ if (!checkpoint->next) {+ _dumb_it_end_sigrenderer(sigrenderer);
+ return checkpoint->time + IT_CHECKPOINT_INTERVAL;
+ }
+
+ checkpoint->next->time = checkpoint->time + IT_CHECKPOINT_INTERVAL;
+ checkpoint = checkpoint->next;
+ checkpoint->sigrenderer = sigrenderer;
+
+ if (checkpoint->time >= FUCKIT_THRESHOLD) {+ checkpoint->next = NULL;
+ return 0;
+ }
+ }
+}
+
+
+
+void dumb_it_do_initial_runthrough(DUH *duh)
+{+ if (duh) {+ DUMB_IT_SIGDATA *sigdata = duh_get_it_sigdata(duh);
+
+ if (sigdata)
+ duh_set_length(duh, dumb_it_build_checkpoints(sigdata, 0));
+ }
+}
+
+static int is_pattern_silent(IT_PATTERN * pattern, int order) {+ int ret = 1;
+ IT_ENTRY * entry, * end;
+ if (!pattern || !pattern->n_rows || !pattern->n_entries || !pattern->entry) return 2;
+
+ if ( pattern->n_entries == pattern->n_rows ) {+ int n;
+ entry = pattern->entry;
+ for ( n = 0; n < pattern->n_entries; ++n, ++entry ) {+ if ( !IT_IS_END_ROW(entry) ) break;
+ }
+ if ( n == pattern->n_entries ) return 2;
+ // broken?
+ }
+
+ entry = pattern->entry;
+ end = entry + pattern->n_entries;
+
+ while (entry < end) {+ if (!IT_IS_END_ROW(entry)) {+ if (entry->mask & (IT_ENTRY_INSTRUMENT | IT_ENTRY_VOLPAN))
+ return 0;
+ if (entry->mask & IT_ENTRY_NOTE && entry->note < 120)
+ return 0;
+ if (entry->mask & IT_ENTRY_EFFECT) {+ switch (entry->effect) {+ case IT_SET_GLOBAL_VOLUME:
+ if (entry->effectvalue) return 0;
+ break;
+
+ case IT_SET_SPEED:
+ if (entry->effectvalue > 64) ret++;
+ break;
+
+ case IT_SET_SONG_TEMPO:
+ case IT_XM_KEY_OFF:
+ break;
+
+ case IT_JUMP_TO_ORDER:
+ if (entry->effectvalue != order)
+ return 0;
+ break;
+
+ case IT_S:
+ switch (entry->effectvalue >> 4) {+ case 0: // meh bastard
+ if ( entry->effectvalue != 0 ) return 0;
+ break;
+
+ case IT_S_FINE_PATTERN_DELAY:
+ case IT_S_PATTERN_LOOP:
+ case IT_S_PATTERN_DELAY:
+ ret++;
+ break;
+
+ case IT_S7:
+ if ((entry->effectvalue & 15) > 2)
+ return 0;
+ break;
+
+ default:
+ return 0;
+ }
+ break;
+
+ // clever idiot with his S L O W crap; do nothing
+ case IT_VOLSLIDE_TONEPORTA:
+ case IT_SET_SAMPLE_OFFSET:
+ case IT_GLOBAL_VOLUME_SLIDE:
+ if ( entry->effectvalue != 0 ) return 0;
+ break;
+
+ // genius also uses this instead of jump to order by mistake, meh, and it's bloody BCD
+ case IT_BREAK_TO_ROW:
+ if ( ( ( entry->effectvalue >> 4 ) * 10 + ( entry->effectvalue & 15 ) ) != order ) return 0;
+ break;
+
+ default:
+ return 0;
+ }
+ }
+ }
+ entry++;
+ }
+
+ return ret;
+}
+
+int dumb_it_trim_silent_patterns(DUH * duh) {+ int n;
+ DUMB_IT_SIGDATA *sigdata;
+
+ if (!duh) return -1;
+
+ sigdata = duh_get_it_sigdata(duh);
+
+ if (!sigdata || !sigdata->order || !sigdata->pattern) return -1;
+
+ for (n = 0; n < sigdata->n_orders; n++) {+ int p = sigdata->order[n];
+ if (p < sigdata->n_patterns) {+ IT_PATTERN * pattern = &sigdata->pattern[p];
+ if (is_pattern_silent(pattern, n) > 1) {+ pattern->n_rows = 1;
+ pattern->n_entries = 0;
+ if (pattern->entry)
+ {+ free(pattern->entry);
+ pattern->entry = NULL;
+ }
+ } else
+ break;
+ }
+ }
+
+ if (n == sigdata->n_orders) return -1;
+
+ for (n = sigdata->n_orders - 1; n >= 0; n--) {+ int p = sigdata->order[n];
+ if (p < sigdata->n_patterns) {+ IT_PATTERN * pattern = &sigdata->pattern[p];
+ if (is_pattern_silent(pattern, n) > 1) {+ pattern->n_rows = 1;
+ pattern->n_entries = 0;
+ if (pattern->entry)
+ {+ free(pattern->entry);
+ pattern->entry = NULL;
+ }
+ } else
+ break;
+ }
+ }
+
+ if (n < 0) return -1;
+
+ /*duh->length = dumb_it_build_checkpoints(sigdata, 0);*/
+
+ return 0;
+}
+
+int dumb_it_scan_for_playable_orders(DUMB_IT_SIGDATA *sigdata, dumb_scan_callback callback, void * callback_data)
+{+ int n;
+ long length;
+ void * ba_played;
+ DUMB_IT_SIGRENDERER * sigrenderer;
+
+ if (!sigdata->n_orders || !sigdata->order) return -1;
+
+ ba_played = bit_array_create(sigdata->n_orders * 256);
+ if (!ba_played) return -1;
+
+ /* Skip the first order, it should always be played */
+ for (n = 1; n < sigdata->n_orders; n++) {+ if ((sigdata->order[n] >= sigdata->n_patterns) ||
+ (is_pattern_silent(&sigdata->pattern[sigdata->order[n]], n) > 1))
+ bit_array_set(ba_played, n * 256);
+ }
+
+ for (;;) {+ for (n = 0; n < sigdata->n_orders; n++) {+ if (!bit_array_test_range(ba_played, n * 256, 256)) break;
+ }
+
+ if (n == sigdata->n_orders) break;
+
+ sigrenderer = dumb_it_init_sigrenderer(sigdata, 0, n);
+ if (!sigrenderer) {+ bit_array_destroy(ba_played);
+ return -1;
+ }
+ sigrenderer->callbacks->loop = &dumb_it_callback_terminate;
+ sigrenderer->callbacks->xm_speed_zero = &dumb_it_callback_terminate;
+ sigrenderer->callbacks->global_volume_zero = &dumb_it_callback_terminate;
+
+ length = 0;
+
+ for (;;) {+ long l;
+
+ l = it_sigrenderer_get_samples(sigrenderer, 0, 1.0f, IT_CHECKPOINT_INTERVAL, NULL);
+ length += l;
+ if (l < IT_CHECKPOINT_INTERVAL || length >= FUCKIT_THRESHOLD) {+ /* SONG OVA! */
+ break;
+ }
+ }
+
+ if ((*callback)(callback_data, n, length) < 0) return -1;
+
+ bit_array_merge(ba_played, sigrenderer->played, 0);
+
+ _dumb_it_end_sigrenderer(sigrenderer);
+ }
+
+ bit_array_destroy(ba_played);
+
+ return 0;
+}
--- /dev/null
+++ b/src/it/itunload.c
@@ -1,0 +1,72 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * itunload.c - Code to free an Impulse Tracker / / \ \
+ * module from memory. | < / \_
+ * | \/ /\ /
+ * By entheh. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+void _dumb_it_unload_sigdata(sigdata_t *vsigdata)
+{+ if (vsigdata) {+ DUMB_IT_SIGDATA *sigdata = vsigdata;
+ int n;
+
+ if (sigdata->song_message)
+ free(sigdata->song_message);
+
+ if (sigdata->order)
+ free(sigdata->order);
+
+ if (sigdata->instrument)
+ free(sigdata->instrument);
+
+ if (sigdata->sample) {+ for (n = 0; n < sigdata->n_samples; n++)
+ if (sigdata->sample[n].data)
+ free(sigdata->sample[n].data);
+
+ free(sigdata->sample);
+ }
+
+ if (sigdata->pattern) {+ for (n = 0; n < sigdata->n_patterns; n++)
+ if (sigdata->pattern[n].entry)
+ free(sigdata->pattern[n].entry);
+ free(sigdata->pattern);
+ }
+
+ if (sigdata->midi)
+ free(sigdata->midi);
+
+ {+ IT_CHECKPOINT *checkpoint = sigdata->checkpoint;
+ while (checkpoint) {+ IT_CHECKPOINT *next = checkpoint->next;
+ _dumb_it_end_sigrenderer(checkpoint->sigrenderer);
+ free(checkpoint);
+ checkpoint = next;
+ }
+ }
+
+ free(vsigdata);
+ }
+}
--- /dev/null
+++ b/src/it/load669.c
@@ -1,0 +1,42 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadmod.c - Code to read a 669 Composer module / / \ \
+ * file, opening and closing it for | < / \_
+ * you. | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_669_quick(): loads a 669 file into a DUH struct, returning a
+ * pointer to the DUH struct. When you have finished with it, you must
+ * pass the pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_669_quick(const char *filename)
+{+ DUH *duh;
+ DUMBFILE *f = dumbfile_open(filename);
+
+ if (!f)
+ return NULL;
+
+ duh = dumb_read_669_quick(f);
+
+ dumbfile_close(f);
+
+ return duh;
+}
--- /dev/null
+++ b/src/it/load6692.c
@@ -1,0 +1,34 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadmod2.c - Code to read a 669 Composer module / / \ \
+ * file, opening and closing it for | < / \_
+ * you, and do an initial run-through. | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_669(): loads a 669 file into a DUH struct, returning a pointer
+ * to the DUH struct. When you have finished with it, you must pass the
+ * pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_669(const char *filename)
+{+ DUH *duh = dumb_load_669_quick(filename);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadamf.c
@@ -1,0 +1,42 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadamf.c - Code to read a DSMI AMF module file, / / \ \
+ * opening and closing it for you. | < / \_
+ * | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_amf_quick(): loads a AMF file into a DUH struct, returning a
+ * pointer to the DUH struct. When you have finished with it, you must
+ * pass the pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_amf_quick(const char *filename)
+{+ DUH *duh;
+ DUMBFILE *f = dumbfile_open(filename);
+
+ if (!f)
+ return NULL;
+
+ duh = dumb_read_amf_quick(f);
+
+ dumbfile_close(f);
+
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadamf2.c
@@ -1,0 +1,34 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadamf2.c - Code to read a DSMI AMF module file, / / \ \
+ * opening and closing it for you, and | < / \_
+ * do an initial run-through. | \/ /\ /
+ * \_ / > /
+ * | \ / /
+ * By Chris Moeller. | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_amf(): loads a AMF file into a DUH struct, returning a pointer
+ * to the DUH struct. When you have finished with it, you must pass the
+ * pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_amf(const char *filename)
+{+ DUH *duh = dumb_load_amf_quick(filename);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadany.c
@@ -1,0 +1,38 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadany.c - Code to detect and read any of the / / \ \
+ * module formats supported by DUMB, | < / \_
+ * opening and closing the file for you. | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+DUH *dumb_load_any_quick(const char *filename, int restrict_, int subsong)
+{+ DUH *duh;
+ DUMBFILE *f = dumbfile_open(filename);
+
+ if (!f)
+ return NULL;
+
+ duh = dumb_read_any_quick(f, restrict_, subsong);
+
+ dumbfile_close(f);
+
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadany2.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadany2.c - Code to detect and read any of the / / \ \
+ * module formats supported by DUMB, | < / \_
+ * opening and closing the file for | \/ /\ /
+ * you, and do an initial run-through. \_ / > /
+ * | \ / /
+ * by Chris Moeller. | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+
+
+
+DUH *dumb_load_any(const char *filename, int restrict_, int subsong)
+{+ DUH *duh = dumb_load_any_quick(filename, restrict_, subsong);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadasy.c
@@ -1,0 +1,42 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadasy.c - Code to read an ASYLUM Music Format / / \ \
+ * module file, opening and closing it | < / \_
+ * for you. | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_asy_quick(): loads a AMF file into a DUH struct, returning a
+ * pointer to the DUH struct. When you have finished with it, you must
+ * pass the pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_asy_quick(const char *filename)
+{+ DUH *duh;
+ DUMBFILE *f = dumbfile_open(filename);
+
+ if (!f)
+ return NULL;
+
+ duh = dumb_read_asy_quick(f);
+
+ dumbfile_close(f);
+
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadasy2.c
@@ -1,0 +1,34 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadasy2.c - Code to read an ASYLUM Music Format / / \ \
+ * module file, opening and closing it | < / \_
+ * for you, and do an initial run- | \/ /\ /
+ * through. \_ / > /
+ * | \ / /
+ * By Chris Moeller. | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_asy(): loads a AMF file into a DUH struct, returning a pointer
+ * to the DUH struct. When you have finished with it, you must pass the
+ * pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_asy(const char *filename)
+{+ DUH *duh = dumb_load_asy_quick(filename);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadmod.c
@@ -1,0 +1,42 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadmod.c - Code to read a good old-fashioned / / \ \
+ * Amiga module file, opening and | < / \_
+ * closing it for you. | \/ /\ /
+ * \_ / > /
+ * By entheh. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_mod_quick(): loads a MOD file into a DUH struct, returning a
+ * pointer to the DUH struct. When you have finished with it, you must
+ * pass the pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_mod_quick(const char *filename, int restrict_)
+{+ DUH *duh;
+ DUMBFILE *f = dumbfile_open(filename);
+
+ if (!f)
+ return NULL;
+
+ duh = dumb_read_mod_quick(f, restrict_);
+
+ dumbfile_close(f);
+
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadmod2.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadmod2.c - Function to read a good old- / / \ \
+ * fashioned Amiga module file, | < / \_
+ * opening and closing it for you, | \/ /\ /
+ * and do an initial run-through. \_ / > /
+ * | \ / /
+ * Split off from loadmod.c by entheh. | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+
+
+
+DUH *dumb_load_mod(const char *filename, int restrict_)
+{+ DUH *duh = dumb_load_mod_quick(filename, restrict_);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadmtm.c
@@ -1,0 +1,42 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadmtm.c - Code to read a MultiTracker Module / / \ \
+ * file, opening and closing it for | < / \_
+ * you. | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_mtm_quick(): loads a MTM file into a DUH struct, returning a
+ * pointer to the DUH struct. When you have finished with it, you must
+ * pass the pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_mtm_quick(const char *filename)
+{+ DUH *duh;
+ DUMBFILE *f = dumbfile_open(filename);
+
+ if (!f)
+ return NULL;
+
+ duh = dumb_read_mtm_quick(f);
+
+ dumbfile_close(f);
+
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadmtm2.c
@@ -1,0 +1,34 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadmtm2.c - Code to read a MultiTracker Module / / \ \
+ * file, opening and closing it for | < / \_
+ * you, and do an initial run-through. | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_mtm(): loads a MTM file into a DUH struct, returning a pointer
+ * to the DUH struct. When you have finished with it, you must pass the
+ * pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_mtm(const char *filename)
+{+ DUH *duh = dumb_load_mtm_quick(filename);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadokt.c
@@ -1,0 +1,42 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadokt.c - Code to read an Oktalyzer module / / \ \
+ * file, opening and closing it for | < / \_
+ * you. | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_okt_quick(): loads an OKT file into a DUH struct, returning a
+ * pointer to the DUH struct. When you have finished with it, you must
+ * pass the pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_okt_quick(const char *filename)
+{+ DUH *duh;
+ DUMBFILE *f = dumbfile_open(filename);
+
+ if (!f)
+ return NULL;
+
+ duh = dumb_read_okt_quick(f);
+
+ dumbfile_close(f);
+
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadokt2.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadokt2.c - Function to read an Oktalyzer / / \ \
+ * module file, opening and closing | < / \_
+ * it for you, and do an initial run- | \/ /\ /
+ * through. \_ / > /
+ * | \ / /
+ * By Chris Moeller. | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+
+
+
+DUH *dumb_load_okt(const char *filename)
+{+ DUH *duh = dumb_load_okt_quick(filename);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadoldpsm.c
@@ -1,0 +1,43 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadoldpsm.c - Code to read a ProTracker Studio / / \ \
+ * file, opening and closing it for | < / \_
+ * you. | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_old_psm_quick(): loads an old PSM file into a DUH struct,
+ * returning a pointer to the DUH struct. When you have finished with it,
+ * you must pass the pointer to unload_duh() so that the memory can be
+ * freed.
+ */
+DUH *dumb_load_old_psm_quick(const char *filename)
+{+ DUH *duh;
+ DUMBFILE *f = dumbfile_open(filename);
+
+ if (!f)
+ return NULL;
+
+ duh = dumb_read_old_psm_quick(f);
+
+ dumbfile_close(f);
+
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadoldpsm2.c
@@ -1,0 +1,34 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadoldpsm2.c - Code to read a ProTracker Studio / / \ \
+ * file, opening and closing it for | < / \_
+ * you, and do an initial run- | \/ /\ /
+ * through. \_ / > /
+ * | \ / /
+ * By Chris Moeller. | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_old_psm(): loads an old PSM file into a DUH struct, returning
+ * a pointer to the DUH struct. When you have finished with it, you must
+ * pass the pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_old_psm(const char *filename)
+{+ DUH *duh = dumb_load_old_psm_quick(filename);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadpsm.c
@@ -1,0 +1,42 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadpsm.c - Code to read a ProTracker Studio / / \ \
+ * file, opening and closing it for | < / \_
+ * you. | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_psm_quick(): loads a PSM file into a DUH struct, returning a
+ * pointer to the DUH struct. When you have finished with it, you must
+ * pass the pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_psm_quick(const char *filename, int subsong)
+{+ DUH *duh;
+ DUMBFILE *f = dumbfile_open(filename);
+
+ if (!f)
+ return NULL;
+
+ duh = dumb_read_psm_quick(f, subsong);
+
+ dumbfile_close(f);
+
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadpsm2.c
@@ -1,0 +1,34 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadpsm2.c - Code to read a ProTracker Studio / / \ \
+ * file, opening and closing it for | < / \_
+ * you, and do an initial run-through. | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_psm(): loads a PSM file into a DUH struct, returning a pointer
+ * to the DUH struct. When you have finished with it, you must pass the
+ * pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_psm(const char *filename, int subsong)
+{+ DUH *duh = dumb_load_psm_quick(filename, subsong);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadptm.c
@@ -1,0 +1,42 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadptm.c - Code to read a Poly Tracker v2.03 / / \ \
+ * file, opening and closing it for | < / \_
+ * you. | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_ptm_quick(): loads a PTM file into a DUH struct, returning a
+ * pointer to the DUH struct. When you have finished with it, you must
+ * pass the pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_ptm_quick(const char *filename)
+{+ DUH *duh;
+ DUMBFILE *f = dumbfile_open(filename);
+
+ if (!f)
+ return NULL;
+
+ duh = dumb_read_ptm_quick(f);
+
+ dumbfile_close(f);
+
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadptm2.c
@@ -1,0 +1,34 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadptm2.c - Code to read a Poly Tracker v2.03 / / \ \
+ * file, opening and closing it for | < / \_
+ * you, and do an initial run-through. | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_ptm(): loads a PTM file into a DUH struct, returning a pointer
+ * to the DUH struct. When you have finished with it, you must pass the
+ * pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_ptm(const char *filename)
+{+ DUH *duh = dumb_load_ptm_quick(filename);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadriff.c
@@ -1,0 +1,42 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadriff.c - Code to read a RIFF module file / / \ \
+ * opening and closing it for you. | < / \_
+ * | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_riff_quick(): loads a RIFF file into a DUH struct, returning
+ * a pointer to the DUH struct. When you have finished with it, you must
+ * pass the pointer to unload_duh() so that the memory can be freed.
+ */
+DUH * dumb_load_riff_quick( const char *filename )
+{+ DUH * duh;
+ DUMBFILE * f = dumbfile_open( filename );
+
+ if ( ! f )
+ return NULL;
+
+ duh = dumb_read_riff_quick( f );
+
+ dumbfile_close( f );
+
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadriff2.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadriff2.c - Code to read a RIFF module file / / \ \
+ * opening and closing it for you, | < / \_
+ * and do an initial run-through. | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+
+
+
+DUH *dumb_load_riff(const char *filename)
+{+ DUH *duh = dumb_load_riff_quick(filename);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/loads3m.c
@@ -1,0 +1,42 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loads3m.c - Code to read a ScreamTracker 3 / / \ \
+ * file, opening and closing it for | < / \_
+ * you. | \/ /\ /
+ * \_ / > /
+ * By entheh. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_s3m_quick(): loads an S3M file into a DUH struct, returning
+ * a pointer to the DUH struct. When you have finished with it, you must
+ * pass the pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_s3m_quick(const char *filename)
+{+ DUH *duh;
+ DUMBFILE *f = dumbfile_open(filename);
+
+ if (!f)
+ return NULL;
+
+ duh = dumb_read_s3m_quick(f);
+
+ dumbfile_close(f);
+
+ return duh;
+}
--- /dev/null
+++ b/src/it/loads3m2.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loads3m2.c - Function to read a ScreamTracker 3 / / \ \
+ * file, opening and closing it for | < / \_
+ * you, and do an initial run-through. | \/ /\ /
+ * \_ / > /
+ * Split off from loads3m.c by entheh. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+
+
+
+DUH *dumb_load_s3m(const char *filename)
+{+ DUH *duh = dumb_load_s3m_quick(filename);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadstm.c
@@ -1,0 +1,42 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadstm.c - Code to read a ScreamTracker 2 / / \ \
+ * file, opening and closing it for | < / \_
+ * you. | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_stm_quick(): loads an STM file into a DUH struct, returning a
+ * pointer to the DUH struct. When you have finished with it, you must
+ * pass the pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_stm_quick(const char *filename)
+{+ DUH *duh;
+ DUMBFILE *f = dumbfile_open(filename);
+
+ if (!f)
+ return NULL;
+
+ duh = dumb_read_stm_quick(f);
+
+ dumbfile_close(f);
+
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadstm2.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadstm2.c - Function to read a ScreamTracker 2 / / \ \
+ * file, opening and closing it for | < / \_
+ * you, and do an initial run-through. | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+
+
+
+DUH *dumb_load_stm(const char *filename)
+{+ DUH *duh = dumb_load_stm_quick(filename);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadxm.c
@@ -1,0 +1,42 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadxm.c - Code to read a Fast Tracker II / / \ \
+ * file, opening and closing it for | < / \_
+ * you. | \/ /\ /
+ * \_ / > /
+ * By entheh. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* dumb_load_xm_quick(): loads an XM file into a DUH struct, returning a
+ * pointer to the DUH struct. When you have finished with it, you must
+ * pass the pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_load_xm_quick(const char *filename)
+{+ DUH *duh;
+ DUMBFILE *f = dumbfile_open(filename);
+
+ if (!f)
+ return NULL;
+
+ duh = dumb_read_xm_quick(f);
+
+ dumbfile_close(f);
+
+ return duh;
+}
--- /dev/null
+++ b/src/it/loadxm2.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * loadxm2.c - Function to read a Fast Tracker II / / \ \
+ * file, opening and closing it for | < / \_
+ * you, and do an initial run-through. | \/ /\ /
+ * \_ / > /
+ * Split off from loadxm.c by entheh. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+
+
+
+DUH *dumb_load_xm(const char *filename)
+{+ DUH *duh = dumb_load_xm_quick(filename);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/ptmeffect.c
@@ -1,0 +1,125 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * ptmeffect.c - Code for converting PTM / / \ \
+ * effects to IT effects. | < / \_
+ * | \/ /\ /
+ * By Chris Moeller. Based on xmeffect.c \_ / > /
+ * by Julien Cugniere. | \ / /
+ * | ' /
+ * \__/
+ */
+
+
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+
+void _dumb_it_ptm_convert_effect(int effect, int value, IT_ENTRY *entry)
+{+ if (effect >= PTM_N_EFFECTS)
+ return;
+
+ /* Linearisation of the effect number... */
+ if (effect == PTM_E) {+ effect = PTM_EBASE + HIGH(value);
+ value = LOW(value);
+ }
+
+ /* convert effect */
+ entry->mask |= IT_ENTRY_EFFECT;
+ switch (effect) {+
+ case PTM_APPREGIO: effect = IT_ARPEGGIO; break;
+ case PTM_PORTAMENTO_UP: effect = IT_PORTAMENTO_UP; break;
+ case PTM_PORTAMENTO_DOWN: effect = IT_PORTAMENTO_DOWN; break;
+ case PTM_TONE_PORTAMENTO: effect = IT_TONE_PORTAMENTO; break;
+ case PTM_VIBRATO: effect = IT_VIBRATO; break;
+ case PTM_VOLSLIDE_TONEPORTA: effect = IT_VOLSLIDE_TONEPORTA; break;
+ case PTM_VOLSLIDE_VIBRATO: effect = IT_VOLSLIDE_VIBRATO; break;
+ case PTM_TREMOLO: effect = IT_TREMOLO; break;
+ case PTM_SAMPLE_OFFSET: effect = IT_SET_SAMPLE_OFFSET; break;
+ case PTM_VOLUME_SLIDE: effect = IT_VOLUME_SLIDE; break;
+ case PTM_POSITION_JUMP: effect = IT_JUMP_TO_ORDER; break;
+ case PTM_SET_CHANNEL_VOLUME: effect = IT_SET_CHANNEL_VOLUME; break;
+ case PTM_PATTERN_BREAK: effect = IT_BREAK_TO_ROW; break;
+ case PTM_SET_GLOBAL_VOLUME: effect = IT_SET_GLOBAL_VOLUME; break;
+ case PTM_RETRIGGER: effect = IT_RETRIGGER_NOTE; break;
+ case PTM_FINE_VIBRATO: effect = IT_FINE_VIBRATO; break;
+
+ /* TODO properly */
+ case PTM_NOTE_SLIDE_UP: effect = IT_PTM_NOTE_SLIDE_UP; break;
+ case PTM_NOTE_SLIDE_DOWN: effect = IT_PTM_NOTE_SLIDE_DOWN; break;
+ case PTM_NOTE_SLIDE_UP_RETRIG: effect = IT_PTM_NOTE_SLIDE_UP_RETRIG; break;
+ case PTM_NOTE_SLIDE_DOWN_RETRIG: effect = IT_PTM_NOTE_SLIDE_DOWN_RETRIG; break;
+
+ case PTM_SET_TEMPO_BPM:
+ effect = (value < 0x20) ? (IT_SET_SPEED) : (IT_SET_SONG_TEMPO);
+ break;
+
+ case PTM_EBASE+PTM_E_SET_FINETUNE: effect = SBASE+IT_S_FINETUNE; break; /** TODO */
+ case PTM_EBASE+PTM_E_SET_LOOP: effect = SBASE+IT_S_PATTERN_LOOP; break;
+ case PTM_EBASE+PTM_E_NOTE_CUT: effect = SBASE+IT_S_DELAYED_NOTE_CUT; break;
+ case PTM_EBASE+PTM_E_NOTE_DELAY: effect = SBASE+IT_S_NOTE_DELAY; break;
+ case PTM_EBASE+PTM_E_PATTERN_DELAY: effect = SBASE+IT_S_PATTERN_DELAY; break;
+ case PTM_EBASE+PTM_E_SET_PANNING: effect = SBASE+IT_S_SET_PAN; break;
+
+ case PTM_EBASE+PTM_E_FINE_VOLSLIDE_UP:
+ effect = IT_VOLUME_SLIDE;
+ value = EFFECT_VALUE(value, 0xF);
+ break;
+
+ case PTM_EBASE + PTM_E_FINE_VOLSLIDE_DOWN:
+ effect = IT_VOLUME_SLIDE;
+ value = EFFECT_VALUE(0xF, value);
+ break;
+
+ case PTM_EBASE + PTM_E_FINE_PORTA_UP:
+ effect = IT_PORTAMENTO_UP;
+ value = EFFECT_VALUE(0xF, value);
+ break;
+
+ case PTM_EBASE + PTM_E_FINE_PORTA_DOWN:
+ effect = IT_PORTAMENTO_DOWN;
+ value = EFFECT_VALUE(0xF, value);
+ break;
+
+ case PTM_EBASE + PTM_E_RETRIG_NOTE:
+ effect = IT_XM_RETRIGGER_NOTE;
+ value = EFFECT_VALUE(0, value);
+ break;
+
+ case PTM_EBASE + PTM_E_SET_VIBRATO_CONTROL:
+ effect = SBASE+IT_S_SET_VIBRATO_WAVEFORM;
+ value &= ~4; /** TODO: value&4 -> don't retrig wave */
+ break;
+
+ case PTM_EBASE + PTM_E_SET_TREMOLO_CONTROL:
+ effect = SBASE+IT_S_SET_TREMOLO_WAVEFORM;
+ value &= ~4; /** TODO: value&4 -> don't retrig wave */
+ break;
+
+ default:
+ /* user effect (often used in demos for synchronisation) */
+ entry->mask &= ~IT_ENTRY_EFFECT;
+ }
+
+ /* Inverse linearisation... */
+ if (effect >= SBASE && effect < SBASE+16) {+ value = EFFECT_VALUE(effect-SBASE, value);
+ effect = IT_S;
+ }
+
+ entry->effect = effect;
+ entry->effectvalue = value;
+}
--- /dev/null
+++ b/src/it/read669.c
@@ -1,0 +1,448 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * read669.c - Code to read a 669 Composer module / / \ \
+ * from an open file. | < / \_
+ * | \/ /\ /
+ * By Chris Moeller. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+static int it_669_read_pattern(IT_PATTERN *pattern, DUMBFILE *f, int tempo, int breakpoint, unsigned char *buffer, int * used_channels)
+{+ int pos;
+ int channel;
+ int row;
+ IT_ENTRY *entry;
+
+ pattern->n_rows = 64;
+
+ if (dumbfile_getnc((char *)buffer, 64 * 3 * 8, f) < 64 * 3 * 8)
+ return -1;
+
+ /* compute number of entries */
+ pattern->n_entries = 64 + 1; /* Account for the row end markers, speed command */
+ if (breakpoint < 63) pattern->n_entries++; /* and break to row 0 */
+
+ pos = 0;
+ for (row = 0; row < 64; row++) {+ for (channel = 0; channel < 8; channel++) {+ if (buffer[pos+0] != 0xFF || buffer[pos+2] != 0xFF)
+ pattern->n_entries++;
+ pos += 3;
+ }
+ }
+
+ pattern->entry = malloc(pattern->n_entries * sizeof(*pattern->entry));
+ if (!pattern->entry)
+ return -1;
+
+ if (breakpoint == 63) breakpoint++;
+
+ entry = pattern->entry;
+
+ entry->channel = 8;
+ entry->mask = IT_ENTRY_EFFECT;
+ entry->effect = IT_SET_SPEED;
+ entry->effectvalue = tempo;
+ entry++;
+
+ pos = 0;
+ for (row = 0; row < 64; row++) {+
+ if (row == breakpoint) {+ entry->channel = 8;
+ entry->mask = IT_ENTRY_EFFECT;
+ entry->effect = IT_BREAK_TO_ROW;
+ entry->effectvalue = 0;
+ entry++;
+ }
+
+ for (channel = 0; channel < 8; channel++) {+ if (buffer[pos+0] != 0xFF || buffer[pos+2] != 0xFF) {+ entry->channel = channel;
+ entry->mask = 0;
+
+ if (buffer[pos+0] < 0xFE) {+ entry->mask |= IT_ENTRY_NOTE | IT_ENTRY_INSTRUMENT;
+ entry->note = (buffer[pos+0] >> 2) + 36;
+ entry->instrument = (((buffer[pos+0] << 4) | (buffer[pos+1] >> 4)) & 0x3F) + 1;
+ }
+ if (buffer[pos+0] <= 0xFE) {+ entry->mask |= IT_ENTRY_VOLPAN;
+ entry->volpan = ((buffer[pos+1] & 15) << 6) / 15;
+ if (*used_channels < channel + 1) *used_channels = channel + 1;
+ }
+ if (buffer[pos+2] != 0xFF) {+ entry->mask |= IT_ENTRY_EFFECT;
+ entry->effectvalue = buffer[pos+2] & 15;
+ switch (buffer[pos+2] >> 4) {+ case 0:
+ entry->effect = IT_PORTAMENTO_UP;
+ break;
+ case 1:
+ entry->effect = IT_PORTAMENTO_DOWN;
+ break;
+ case 2:
+ entry->effect = IT_TONE_PORTAMENTO;
+ break;
+ case 3:
+ entry->effect = IT_S;
+ entry->effectvalue += IT_S_FINETUNE * 16 + 8;
+ break;
+ case 4:
+ entry->effect = IT_VIBRATO;
+ // XXX speed unknown
+ entry->effectvalue |= 0x10;
+ break;
+ case 5:
+ if (entry->effectvalue) {+ entry->effect = IT_SET_SPEED;
+ } else {+ entry->mask &= ~IT_ENTRY_EFFECT;
+ }
+ break;
+#if 0
+ /* dunno about this, really... */
+ case 6:
+ if (entry->effectvalue == 0) {+ entry->effect = IT_PANNING_SLIDE;
+ entry->effectvalue = 0xFE;
+ } else if (entry->effectvalue == 1) {+ entry->effect = IT_PANNING_SLIDE;
+ entry->effectvalue = 0xEF;
+ } else {+ entry->mask &= ~IT_ENTRY_EFFECT;
+ }
+ break;
+#endif
+ default:
+ entry->mask &= ~IT_ENTRY_EFFECT;
+ break;
+ }
+ if (*used_channels < channel + 1) *used_channels = channel + 1;
+ }
+
+ entry++;
+ }
+ pos += 3;
+ }
+ IT_SET_END_ROW(entry);
+ entry++;
+ }
+
+ return 0;
+}
+
+
+
+static int it_669_read_sample_header(IT_SAMPLE *sample, DUMBFILE *f)
+{+ dumbfile_getnc((char *)sample->name, 13, f);
+ sample->name[13] = 0;
+
+ sample->filename[0] = 0;
+
+ sample->length = dumbfile_igetl(f);
+ sample->loop_start = dumbfile_igetl(f);
+ sample->loop_end = dumbfile_igetl(f);
+
+ if (dumbfile_error(f))
+ return -1;
+
+ if (sample->length <= 0) {+ sample->flags = 0;
+ return 0;
+ }
+
+ sample->flags = IT_SAMPLE_EXISTS;
+
+ sample->global_volume = 64;
+ sample->default_volume = 64;
+
+ sample->default_pan = 0;
+ sample->C5_speed = 8363;
+ // the above line might be wrong
+
+ if ((sample->loop_end > sample->length) && !(sample->loop_start))
+ sample->loop_end = 0;
+
+ if (sample->loop_end > sample->length)
+ sample->loop_end = sample->length;
+
+ if (sample->loop_end - sample->loop_start > 2)
+ sample->flags |= IT_SAMPLE_LOOP;
+
+ sample->vibrato_speed = 0;
+ sample->vibrato_depth = 0;
+ sample->vibrato_rate = 0;
+ sample->vibrato_waveform = 0; // do we have to set _all_ these?
+ sample->finetune = 0;
+ sample->max_resampling_quality = -1;
+
+ return 0;
+}
+
+
+
+static int it_669_read_sample_data(IT_SAMPLE *sample, DUMBFILE *f)
+{+ long i;
+ long truncated_size;
+
+ /* let's get rid of the sample data coming after the end of the loop */
+ if ((sample->flags & IT_SAMPLE_LOOP) && sample->loop_end < sample->length) {+ truncated_size = sample->length - sample->loop_end;
+ sample->length = sample->loop_end;
+ } else {+ truncated_size = 0;
+ }
+
+ sample->data = malloc(sample->length);
+
+ if (!sample->data)
+ return -1;
+
+ if (sample->length)
+ {+ i = dumbfile_getnc(sample->data, sample->length, f);
+
+ if (i < sample->length) {+ //return -1;
+ // ficking truncated files
+ if (i <= 0) {+ sample->flags = 0;
+ return 0;
+ }
+ sample->length = i;
+ if (sample->loop_end > i) sample->loop_end = i;
+ } else {+ /* skip truncated data */
+ dumbfile_skip(f, truncated_size);
+ // Should we be truncating it?
+ if (dumbfile_error(f))
+ return -1;
+ }
+
+ for (i = 0; i < sample->length; i++)
+ ((signed char *)sample->data)[i] ^= 0x80;
+ }
+
+ return 0;
+}
+
+
+static DUMB_IT_SIGDATA *it_669_load_sigdata(DUMBFILE *f, int * ext)
+{+ DUMB_IT_SIGDATA *sigdata;
+ int n_channels;
+ int i;
+ unsigned char tempolist[128];
+ unsigned char breaklist[128];
+
+ i = dumbfile_igetw(f);
+ if (i != 0x6669 && i != 0x4E4A) return NULL;
+
+ *ext = (i == 0x4E4A);
+
+ sigdata = malloc(sizeof(*sigdata));
+ if (!sigdata) {+ return NULL;
+ }
+
+ if (dumbfile_getnc((char *)sigdata->name, 36, f) < 36) {+ free(sigdata);
+ return NULL;
+ }
+ sigdata->name[36] = 0;
+
+ sigdata->order = NULL;
+ sigdata->instrument = NULL;
+ sigdata->pattern = NULL;
+ sigdata->midi = NULL;
+ sigdata->checkpoint = NULL;
+ sigdata->sample = NULL;
+
+ sigdata->n_instruments = 0;
+
+ sigdata->song_message = malloc(72 + 2 + 1);
+ if (!sigdata->song_message) {+ free(sigdata);
+ return NULL;
+ }
+ if (dumbfile_getnc((char *)sigdata->song_message, 36, f) < 36) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ sigdata->song_message[36] = 13;
+ sigdata->song_message[36 + 1] = 10;
+ if (dumbfile_getnc((char *)sigdata->song_message + 38, 36, f) < 36) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ sigdata->song_message[38 + 36] = 0;
+
+ sigdata->n_samples = dumbfile_getc(f);
+ sigdata->n_patterns = dumbfile_getc(f);
+ sigdata->restart_position = dumbfile_getc(f);
+
+ if ((sigdata->n_samples) > 64 || (sigdata->n_patterns > 128)) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ sigdata->order = malloc(128); /* We may need to scan the extra ones! */
+ if (!sigdata->order) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ if (dumbfile_getnc((char *)sigdata->order, 128, f) < 128) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ for (i = 0; i < 128; i++) {+ if (sigdata->order[i] == 255) break;
+ if (sigdata->order[i] >= sigdata->n_patterns) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ }
+ if (!i) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ sigdata->n_orders = i;
+
+ if (dumbfile_getnc((char *)tempolist, 128, f) < 128) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ if (dumbfile_getnc((char *)breaklist, 128, f) < 128) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
+ if (!sigdata->sample) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ for (i = 0; i < sigdata->n_samples; i++)
+ sigdata->sample[i].data = NULL;
+
+ for (i = 0; i < sigdata->n_samples; i++) {+ if (it_669_read_sample_header(&sigdata->sample[i], f)) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ }
+
+ /* May as well try to save a tiny bit of memory. */
+ if (sigdata->n_orders < 128) {+ unsigned char *order = realloc(sigdata->order, sigdata->n_orders);
+ if (order) sigdata->order = order;
+ }
+
+ sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
+ if (!sigdata->pattern) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (i = 0; i < sigdata->n_patterns; i++)
+ sigdata->pattern[i].entry = NULL;
+
+ n_channels = 0;
+
+ /* Read in the patterns */
+ {+ unsigned char *buffer = malloc(64 * 3 * 8); /* 64 rows * 3 bytes * 8 channels */
+ if (!buffer) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (i = 0; i < sigdata->n_patterns; i++) {+ if (it_669_read_pattern(&sigdata->pattern[i], f, tempolist[i], breaklist[i], buffer, &n_channels) != 0) {+ free(buffer);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ }
+ free(buffer);
+ }
+
+ sigdata->n_pchannels = n_channels;
+
+ /* And finally, the sample data */
+ for (i = 0; i < sigdata->n_samples; i++) {+ if (it_669_read_sample_data(&sigdata->sample[i], f)) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ }
+
+ /* Now let's initialise the remaining variables, and we're done! */
+ sigdata->flags = IT_OLD_EFFECTS | IT_LINEAR_SLIDES | IT_STEREO | IT_WAS_A_669;
+
+ sigdata->global_volume = 128;
+ sigdata->mixing_volume = 48;
+ sigdata->speed = 4;
+ sigdata->tempo = 78;
+ sigdata->pan_separation = 128;
+
+ memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
+
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i += 2) {+ int sep = 32 * dumb_it_default_panning_separation / 100;
+ sigdata->channel_pan[i+0] = 32 + sep;
+ sigdata->channel_pan[i+1] = 32 - sep;
+ }
+
+ _dumb_it_fix_invalid_orders(sigdata);
+
+ return sigdata;
+}
+
+
+
+DUH *dumb_read_669_quick(DUMBFILE *f)
+{+ sigdata_t *sigdata;
+ int ext;
+
+ DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
+
+ sigdata = it_669_load_sigdata(f, &ext);
+
+ if (!sigdata)
+ return NULL;
+
+ {+ const char *tag[2][2];
+ tag[0][0] = "TITLE";
+ tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
+ tag[1][0] = "FORMAT";
+ tag[1][1] = ext ? "669 Extended" : "669";
+ return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
+ }
+}
--- /dev/null
+++ b/src/it/read6692.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * read6692.c - Code to read a 669 Composer module / / \ \
+ * from an open file, and do an initial | < / \_
+ * run-through. | \/ /\ /
+ * By Chris Moeller. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+
+
+
+DUH *dumb_read_669(DUMBFILE *f)
+{+ DUH *duh = dumb_read_669_quick(f);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/readam.c
@@ -1,0 +1,789 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readam.c - Code to read a RIFF AM module / / \ \
+ * from a parsed RIFF structure. | < / \_
+ * | \/ /\ /
+ * By Chris Moeller. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+#include "internal/riff.h"
+
+static int it_riff_am_process_sample( IT_SAMPLE * sample, DUMBFILE * f, int len, int ver )
+{+ int header_length;
+ int default_pan;
+ int default_volume;
+ int flags;
+ int length;
+ int length_bytes;
+ int loop_start;
+ int loop_end;
+ int sample_rate;
+
+ long start = dumbfile_pos( f );
+
+ if ( ver == 0 )
+ {+ if ( len < 0x38 )
+ return -1;
+
+ header_length = 0x38;
+
+ dumbfile_getnc( (char *) sample->name, 28, f );
+ sample->name[ 28 ] = 0;
+
+ default_pan = dumbfile_getc( f );
+ default_volume = dumbfile_getc( f );
+ flags = dumbfile_igetw( f );
+ length = dumbfile_igetl( f );
+ loop_start = dumbfile_igetl( f );
+ loop_end = dumbfile_igetl( f );
+ sample_rate = dumbfile_igetl( f );
+ }
+ else
+ {+ if (len < 4) return -1;
+
+ header_length = dumbfile_igetl( f );
+ if ( header_length < 0x40 )
+ return -1;
+ if ( header_length + 4 > len )
+ return -1;
+
+ start += 4;
+ len -= 4;
+
+ dumbfile_getnc( (char *) sample->name, 32, f );
+
+ default_pan = dumbfile_igetw( f );
+ default_volume = dumbfile_igetw( f );
+ flags = dumbfile_igetw( f );
+ dumbfile_skip( f, 2 );
+ length = dumbfile_igetl( f );
+ loop_start = dumbfile_igetl( f );
+ loop_end = dumbfile_igetl( f );
+ sample_rate = dumbfile_igetl( f );
+
+ if ( default_pan > 0x7FFF || default_volume > 0x7FFF )
+ return -1;
+
+ default_pan = default_pan * 64 / 32767;
+ default_volume = default_volume * 64 / 32767;
+ }
+
+ if ( ! length ) {+ sample->flags &= ~IT_SAMPLE_EXISTS;
+ return 0;
+ }
+
+ if ( flags & ~( 0x8000 | 0x80 | 0x20 | 0x10 | 0x08 | 0x04 ) )
+ return -1;
+
+ length_bytes = length << ( ( flags & 0x04 ) >> 2 );
+
+ if ( length_bytes + header_length > len )
+ return -1;
+
+ sample->flags = 0;
+
+ if ( flags & 0x80 ) sample->flags |= IT_SAMPLE_EXISTS;
+ if ( flags & 0x04 ) sample->flags |= IT_SAMPLE_16BIT;
+
+ sample->length = length;
+ sample->loop_start = loop_start;
+ sample->loop_end = loop_end;
+ sample->C5_speed = sample_rate;
+ sample->default_volume = default_volume;
+ sample->default_pan = default_pan | ( ( flags & 0x20 ) << 2 );
+ sample->filename[0] = 0;
+ sample->global_volume = 64;
+ sample->vibrato_speed = 0;
+ sample->vibrato_depth = 0;
+ sample->vibrato_rate = 0;
+ sample->vibrato_waveform = IT_VIBRATO_SINE;
+ sample->finetune = 0;
+ sample->max_resampling_quality = -1;
+
+ if ( flags & 0x08 )
+ {+ if (((unsigned int)sample->loop_end <= (unsigned int)sample->length) &&
+ ((unsigned int)sample->loop_start < (unsigned int)sample->loop_end))
+ {+ sample->length = sample->loop_end;
+ sample->flags |= IT_SAMPLE_LOOP;
+ if ( flags & 0x10 ) sample->flags |= IT_SAMPLE_PINGPONG_LOOP;
+ }
+ }
+
+ length_bytes = sample->length << ( ( flags & 0x04 ) >> 2 );
+
+ sample->data = malloc( length_bytes );
+ if ( ! sample->data )
+ return -1;
+
+ if ( dumbfile_seek( f, start + header_length, DFS_SEEK_SET ) )
+ return -1;
+
+ dumbfile_getnc( sample->data, length_bytes, f );
+
+ return 0;
+}
+
+static int it_riff_am_process_pattern( IT_PATTERN * pattern, DUMBFILE * f, int len, int ver )
+{+ int nrows, row;
+ long start, end;
+ unsigned flags;
+ int p, q, r;
+ IT_ENTRY * entry;
+
+ nrows = dumbfile_getc( f ) + 1;
+
+ pattern->n_rows = nrows;
+
+ len -= 1;
+
+ pattern->n_entries = 0;
+
+ row = 0;
+
+ start = dumbfile_pos( f );
+ end = start + len;
+
+ while ( (row < nrows) && !dumbfile_error( f ) && (dumbfile_pos( f ) < end) ) {+ p = dumbfile_getc( f );
+ if ( ! p ) {+ ++ row;
+ continue;
+ }
+
+ flags = p & 0xE0;
+
+ if (flags) {+ ++ pattern->n_entries;
+ if (flags & 0x80) dumbfile_skip( f, 2 );
+ if (flags & 0x40) dumbfile_skip( f, 2 );
+ if (flags & 0x20) dumbfile_skip( f, 1 );
+ }
+ }
+
+ if ( ! pattern->n_entries ) return 0;
+
+ pattern->n_entries += nrows;
+
+ pattern->entry = malloc( pattern->n_entries * sizeof( * pattern->entry ) );
+ if ( ! pattern->entry ) return -1;
+
+ entry = pattern->entry;
+
+ row = 0;
+
+ dumbfile_seek( f, start, DFS_SEEK_SET );
+
+ while ( ( row < nrows ) && !dumbfile_error( f ) && ( dumbfile_pos( f ) < end ) )
+ {+ p = dumbfile_getc( f );
+
+ if ( ! p )
+ {+ IT_SET_END_ROW( entry );
+ ++ entry;
+ ++ row;
+ continue;
+ }
+
+ flags = p;
+ entry->channel = flags & 0x1F;
+ entry->mask = 0;
+
+ if (flags & 0xE0)
+ {+ if ( flags & 0x80 )
+ {+ q = dumbfile_getc( f );
+ r = dumbfile_getc( f );
+ _dumb_it_xm_convert_effect( r, q, entry, 0 );
+ }
+
+ if ( flags & 0x40 )
+ {+ q = dumbfile_getc( f );
+ r = dumbfile_getc( f );
+ if ( q )
+ {+ entry->mask |= IT_ENTRY_INSTRUMENT;
+ entry->instrument = q;
+ }
+ if ( r )
+ {+ entry->mask |= IT_ENTRY_NOTE;
+ entry->note = r - 1;
+ }
+ }
+
+ if ( flags & 0x20 )
+ {+ q = dumbfile_getc( f );
+ entry->mask |= IT_ENTRY_VOLPAN;
+ if ( ver == 0 ) entry->volpan = q;
+ else entry->volpan = q * 64 / 127;
+ }
+
+ if (entry->mask) entry++;
+ }
+ }
+
+ while ( row < nrows )
+ {+ IT_SET_END_ROW( entry );
+ ++ entry;
+ ++ row;
+ }
+
+ pattern->n_entries = entry - pattern->entry;
+ if ( ! pattern->n_entries ) return -1;
+
+ return 0;
+}
+
+static DUMB_IT_SIGDATA *it_riff_amff_load_sigdata( DUMBFILE * f, struct riff * stream )
+{+ DUMB_IT_SIGDATA *sigdata;
+
+ int n, o, p, found;
+
+ if ( ! stream ) goto error;
+
+ if ( stream->type != DUMB_ID( 'A', 'M', 'F', 'F' ) ) goto error;
+
+ sigdata = malloc( sizeof( *sigdata ) );
+ if ( ! sigdata ) goto error;
+
+ sigdata->n_patterns = 0;
+ sigdata->n_samples = 0;
+ sigdata->name[0] = 0;
+
+ found = 0;
+
+ for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
+ {+ struct riff_chunk * c = stream->chunks + n;
+ switch( c->type )
+ {+ case DUMB_ID( 'M', 'A', 'I', 'N' ):
+ /* initialization data */
+ if ( ( found & 1 ) || ( c->size < 0x48 ) ) goto error_sd;
+ found |= 1;
+ break;
+
+ case DUMB_ID( 'O', 'R', 'D', 'R' ):
+ if ( ( found & 2 ) || ( c->size < 1 ) ) goto error_sd;
+ found |= 2;
+ break;
+
+ case DUMB_ID( 'P', 'A', 'T', 'T' ):
+ if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_sd;
+ o = dumbfile_getc( f );
+ if ( o >= sigdata->n_patterns ) sigdata->n_patterns = o + 1;
+ o = dumbfile_igetl( f );
+ if ( (unsigned)o + 5 > c->size ) goto error_sd;
+ break;
+
+ case DUMB_ID( 'I', 'N', 'S', 'T' ):
+ {+ if ( c->size < 0xE1 ) goto error_sd;
+ if ( dumbfile_seek( f, c->offset + 1, DFS_SEEK_SET ) ) goto error_sd;
+ o = dumbfile_getc( f );
+ if ( o >= sigdata->n_samples ) sigdata->n_samples = o + 1;
+ if ( c->size >= 0x121 )
+ {+ if ( dumbfile_seek( f, c->offset + 0xE1, DFS_SEEK_SET ) ) goto error_sd;
+ if ( dumbfile_mgetl( f ) == DUMB_ID('S','A','M','P') )+ {+ unsigned size = dumbfile_igetl( f );
+ if ( size + 0xE1 + 8 > c->size ) goto error_sd;
+ }
+ }
+ }
+ break;
+ }
+ }
+
+ if ( found != 3 || !sigdata->n_samples || !sigdata->n_patterns ) goto error_sd;
+
+ if ( sigdata->n_samples > 255 || sigdata->n_patterns > 255 ) goto error_sd;
+
+ sigdata->song_message = NULL;
+ sigdata->order = NULL;
+ sigdata->instrument = NULL;
+ sigdata->sample = NULL;
+ sigdata->pattern = NULL;
+ sigdata->midi = NULL;
+ sigdata->checkpoint = NULL;
+
+ sigdata->mixing_volume = 48;
+ sigdata->pan_separation = 128;
+
+ sigdata->n_instruments = 0;
+ sigdata->n_orders = 0;
+ sigdata->restart_position = 0;
+
+ memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
+
+ for (n = 0; n < DUMB_IT_N_CHANNELS; n += 4) {+ int sep = 32 * dumb_it_default_panning_separation / 100;
+ sigdata->channel_pan[n ] = 32 - sep;
+ sigdata->channel_pan[n+1] = 32 + sep;
+ sigdata->channel_pan[n+2] = 32 + sep;
+ sigdata->channel_pan[n+3] = 32 - sep;
+ }
+
+ for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
+ {+ struct riff_chunk * c = stream->chunks + n;
+ switch ( c->type )
+ {+ case DUMB_ID( 'M', 'A', 'I', 'N' ):
+ if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
+ dumbfile_getnc( (char *) sigdata->name, 64, f );
+ sigdata->name[ 64 ] = 0;
+ sigdata->flags = IT_STEREO | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_WAS_AN_S3M;
+ o = dumbfile_getc( f );
+ if ( ! ( o & 1 ) ) sigdata->flags |= IT_LINEAR_SLIDES;
+ if ( ( o & ~3 ) || ! ( o & 2 ) ) goto error_usd; // unknown flags
+ sigdata->n_pchannels = dumbfile_getc( f );
+ sigdata->speed = dumbfile_getc( f );
+ sigdata->tempo = dumbfile_getc( f );
+
+ dumbfile_skip( f, 4 );
+
+ sigdata->global_volume = dumbfile_getc( f );
+
+ if ( c->size < 0x48 + (unsigned)sigdata->n_pchannels ) goto error_usd;
+
+ for ( o = 0; o < sigdata->n_pchannels; ++o )
+ {+ p = dumbfile_getc( f );
+ sigdata->channel_pan[ o ] = p;
+ if ( p >= 128 )
+ {+ sigdata->channel_volume[ o ] = 0;
+ }
+ }
+ break;
+ }
+ }
+
+ sigdata->pattern = malloc( sigdata->n_patterns * sizeof( *sigdata->pattern ) );
+ if ( ! sigdata->pattern ) goto error_usd;
+ for ( n = 0; n < sigdata->n_patterns; ++n )
+ sigdata->pattern[ n ].entry = NULL;
+
+ sigdata->sample = malloc( sigdata->n_samples * sizeof( *sigdata->sample ) );
+ if ( ! sigdata->sample ) goto error_usd;
+ for ( n = 0; n < sigdata->n_samples; ++n )
+ {+ IT_SAMPLE * sample = sigdata->sample + n;
+ sample->data = NULL;
+ sample->flags = 0;
+ sample->name[ 0 ] = 0;
+ }
+
+ for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
+ {+ struct riff_chunk * c = stream->chunks + n;
+ switch ( c->type )
+ {+ case DUMB_ID( 'O', 'R', 'D', 'R' ):
+ if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
+ sigdata->n_orders = dumbfile_getc( f ) + 1;
+ if ( (unsigned)sigdata->n_orders + 1 > c->size ) goto error_usd;
+ sigdata->order = malloc( sigdata->n_orders );
+ if ( ! sigdata->order ) goto error_usd;
+ dumbfile_getnc( (char *) sigdata->order, sigdata->n_orders, f );
+ break;
+
+ case DUMB_ID( 'P', 'A', 'T', 'T' ):
+ if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
+ o = dumbfile_getc( f );
+ p = dumbfile_igetl( f );
+ if ( it_riff_am_process_pattern( sigdata->pattern + o, f, p, 0 ) ) goto error_usd;
+ break;
+
+ case DUMB_ID( 'I', 'N', 'S', 'T' ):
+ {+ IT_SAMPLE * sample;
+ if ( dumbfile_seek( f, c->offset + 1, DFS_SEEK_SET ) ) goto error_usd;
+ sample = sigdata->sample + dumbfile_getc( f );
+ if ( c->size >= 0x121 )
+ {+ if ( dumbfile_seek( f, c->offset + 0xE1, DFS_SEEK_SET ) ) goto error_usd;
+ if ( dumbfile_mgetl( f ) == DUMB_ID('S','A','M','P') )+ {+ unsigned size = dumbfile_igetl( f );
+ if ( it_riff_am_process_sample( sample, f, size, 0 ) ) goto error_usd;
+ break;
+ }
+ }
+ dumbfile_seek( f, c->offset + 2, DFS_SEEK_SET );
+ dumbfile_getnc( (char *) sample->name, 28, f );
+ sample->name[ 28 ] = 0;
+ }
+ break;
+ }
+ }
+
+ _dumb_it_fix_invalid_orders( sigdata );
+
+ return sigdata;
+
+error_usd:
+ _dumb_it_unload_sigdata( sigdata );
+ goto error;
+error_sd:
+ free( sigdata );
+error:
+ return NULL;
+}
+
+static DUMB_IT_SIGDATA *it_riff_am_load_sigdata( DUMBFILE * f, struct riff * stream )
+{+ DUMB_IT_SIGDATA *sigdata;
+
+ int n, o, p, found;
+
+ if ( ! f || ! stream ) goto error;
+
+ if ( stream->type != DUMB_ID( 'A', 'M', ' ', ' ' ) ) goto error;
+
+ sigdata = malloc(sizeof(*sigdata));
+ if ( ! sigdata ) goto error;
+
+ sigdata->n_patterns = 0;
+ sigdata->n_samples = 0;
+ sigdata->name[0] = 0;
+
+ found = 0;
+
+ for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
+ {+ struct riff_chunk * c = stream->chunks + n;
+ switch( c->type )
+ {+ case DUMB_ID( 'I' ,'N' ,'I' ,'T' ):
+ /* initialization data */
+ if ( ( found & 1 ) || ( c->size < 0x48 ) ) goto error_sd;
+ found |= 1;
+ break;
+
+ case DUMB_ID( 'O', 'R', 'D', 'R' ):
+ if ( ( found & 2 ) || ( c->size < 1 ) ) goto error_sd;
+ found |= 2;
+ break;
+
+ case DUMB_ID( 'P', 'A', 'T', 'T' ):
+ if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_sd;
+ o = dumbfile_getc( f );
+ if ( o >= sigdata->n_patterns ) sigdata->n_patterns = o + 1;
+ o = dumbfile_igetl( f );
+ if ( (unsigned)o + 5 > c->size ) goto error_sd;
+ break;
+
+ case DUMB_ID( 'R', 'I', 'F', 'F' ):
+ {+ struct riff * str = c->nested;
+ switch ( str->type )
+ {+ case DUMB_ID( 'A', 'I', ' ', ' ' ):
+ for ( o = 0; (unsigned)o < str->chunk_count; ++o )
+ {+ struct riff_chunk * chk = str->chunks + o;
+ switch( chk->type )
+ {+ case DUMB_ID( 'I', 'N', 'S', 'T' ):
+ {+ struct riff * temp;
+ unsigned size;
+ unsigned sample_found;
+ if ( dumbfile_seek( f, chk->offset, DFS_SEEK_SET ) ) goto error_sd;
+ size = dumbfile_igetl( f );
+ if ( size < 0x142 ) goto error_sd;
+ sample_found = 0;
+ dumbfile_skip( f, 1 );
+ p = dumbfile_getc( f );
+ if ( p >= sigdata->n_samples ) sigdata->n_samples = p + 1;
+ temp = riff_parse( f, chk->offset + 4 + size, chk->size - size - 4, 1 );
+ if ( temp )
+ {+ if ( temp->type == DUMB_ID( 'A', 'S', ' ', ' ' ) )
+ {+ for ( p = 0; (unsigned)p < temp->chunk_count; ++p )
+ {+ if ( temp->chunks[ p ].type == DUMB_ID( 'S', 'A', 'M', 'P' ) )
+ {+ if ( sample_found )
+ {+ riff_free( temp );
+ goto error_sd;
+ }
+ sample_found = 1;
+ }
+ }
+ }
+ riff_free( temp );
+ }
+ }
+ }
+ }
+ }
+ }
+ break;
+ }
+ }
+
+ if ( found != 3 || !sigdata->n_samples || !sigdata->n_patterns ) goto error_sd;
+
+ if ( sigdata->n_samples > 255 || sigdata->n_patterns > 255 ) goto error_sd;
+
+ sigdata->song_message = NULL;
+ sigdata->order = NULL;
+ sigdata->instrument = NULL;
+ sigdata->sample = NULL;
+ sigdata->pattern = NULL;
+ sigdata->midi = NULL;
+ sigdata->checkpoint = NULL;
+
+ sigdata->mixing_volume = 48;
+ sigdata->pan_separation = 128;
+
+ sigdata->n_instruments = 0;
+ sigdata->n_orders = 0;
+ sigdata->restart_position = 0;
+
+ memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
+
+ for (n = 0; n < DUMB_IT_N_CHANNELS; n += 4) {+ int sep = 32 * dumb_it_default_panning_separation / 100;
+ sigdata->channel_pan[n ] = 32 - sep;
+ sigdata->channel_pan[n+1] = 32 + sep;
+ sigdata->channel_pan[n+2] = 32 + sep;
+ sigdata->channel_pan[n+3] = 32 - sep;
+ }
+
+ for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
+ {+ struct riff_chunk * c = stream->chunks + n;
+ switch ( c->type )
+ {+ case DUMB_ID( 'I', 'N', 'I', 'T' ):
+ if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
+ dumbfile_getnc( (char *) sigdata->name, 64, f );
+ sigdata->name[ 64 ] = 0;
+ sigdata->flags = IT_STEREO | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_WAS_AN_S3M;
+ o = dumbfile_getc( f );
+ if ( ! ( o & 1 ) ) sigdata->flags |= IT_LINEAR_SLIDES;
+ if ( ( o & ~3 ) || ! ( o & 2 ) ) goto error_usd; // unknown flags
+ sigdata->n_pchannels = dumbfile_getc( f );
+ sigdata->speed = dumbfile_getc( f );
+ sigdata->tempo = dumbfile_getc( f );
+
+ dumbfile_skip( f, 4 );
+
+ sigdata->global_volume = dumbfile_getc( f );
+
+ if ( c->size < 0x48 + (unsigned)sigdata->n_pchannels ) goto error_usd;
+
+ for ( o = 0; o < sigdata->n_pchannels; ++o )
+ {+ p = dumbfile_getc( f );
+ if ( p <= 128 )
+ {+ sigdata->channel_pan[ o ] = p / 2;
+ }
+ else
+ {+ sigdata->channel_volume[ o ] = 0;
+ }
+ }
+ break;
+ }
+ }
+
+ sigdata->pattern = malloc( sigdata->n_patterns * sizeof( *sigdata->pattern ) );
+ if ( ! sigdata->pattern ) goto error_usd;
+ for ( n = 0; n < sigdata->n_patterns; ++n )
+ sigdata->pattern[ n ].entry = NULL;
+
+ sigdata->sample = malloc( sigdata->n_samples * sizeof( *sigdata->sample ) );
+ if ( ! sigdata->sample ) goto error_usd;
+ for ( n = 0; n < sigdata->n_samples; ++n )
+ {+ IT_SAMPLE * sample = sigdata->sample + n;
+ sample->data = NULL;
+ sample->flags = 0;
+ sample->name[ 0 ] = 0;
+ }
+
+ for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
+ {+ struct riff_chunk * c = stream->chunks + n;
+ switch ( c->type )
+ {+ case DUMB_ID( 'O', 'R', 'D', 'R' ):
+ if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
+ sigdata->n_orders = dumbfile_getc( f ) + 1;
+ if ( (unsigned)sigdata->n_orders + 1 > c->size ) goto error_usd;
+ sigdata->order = malloc( sigdata->n_orders );
+ if ( ! sigdata->order ) goto error_usd;
+ dumbfile_getnc( (char *) sigdata->order, sigdata->n_orders, f );
+ break;
+
+ case DUMB_ID( 'P', 'A', 'T', 'T' ):
+ if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
+ o = dumbfile_getc( f );
+ p = dumbfile_igetl( f );
+ if ( it_riff_am_process_pattern( sigdata->pattern + o, f, p, 1 ) ) goto error_usd;
+ break;
+
+ case DUMB_ID( 'R', 'I', 'F', 'F' ):
+ {+ struct riff * str = c->nested;
+ switch ( str->type )
+ {+ case DUMB_ID('A', 'I', ' ', ' '):+ for ( o = 0; (unsigned)o < str->chunk_count; ++o )
+ {+ struct riff_chunk * chk = str->chunks + o;
+ switch( chk->type )
+ {+ case DUMB_ID( 'I', 'N', 'S', 'T' ):
+ {+ struct riff * temp;
+ unsigned size;
+ unsigned sample_found;
+ IT_SAMPLE * sample;
+ if ( dumbfile_seek( f, chk->offset, DFS_SEEK_SET ) ) goto error_usd;
+ size = dumbfile_igetl( f );
+ dumbfile_skip( f, 1 );
+ p = dumbfile_getc( f );
+ temp = riff_parse( f, chk->offset + 4 + size, chk->size - size - 4, 1 );
+ sample_found = 0;
+ sample = sigdata->sample + p;
+ if ( temp )
+ {+ if ( temp->type == DUMB_ID( 'A', 'S', ' ', ' ' ) )
+ {+ for ( p = 0; (unsigned)p < temp->chunk_count; ++p )
+ {+ struct riff_chunk * c = temp->chunks + p;
+ if ( c->type == DUMB_ID( 'S', 'A', 'M', 'P' ) )
+ {+ if ( sample_found )
+ {+ riff_free( temp );
+ goto error_usd;
+ }
+ if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) )
+ {+ riff_free( temp );
+ goto error_usd;
+ }
+ if ( it_riff_am_process_sample( sample, f, c->size, 1 ) )
+ {+ riff_free( temp );
+ goto error_usd;
+ }
+ sample_found = 1;
+ }
+ }
+ }
+ riff_free( temp );
+ }
+ if ( ! sample_found )
+ {+ dumbfile_seek( f, chk->offset + 6, DFS_SEEK_SET );
+ dumbfile_getnc( (char *) sample->name, 32, f );
+ sample->name[ 32 ] = 0;
+ }
+ }
+ }
+ }
+ }
+ }
+ break;
+ }
+ }
+
+ _dumb_it_fix_invalid_orders( sigdata );
+
+ return sigdata;
+
+error_usd:
+ _dumb_it_unload_sigdata( sigdata );
+ goto error;
+error_sd:
+ free( sigdata );
+error:
+ return NULL;
+}
+
+DUH *dumb_read_riff_amff( DUMBFILE * f, struct riff * stream )
+{+ sigdata_t *sigdata;
+ long length;
+
+ DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
+
+ sigdata = it_riff_amff_load_sigdata( f, stream );
+
+ if (!sigdata)
+ return NULL;
+
+ length = 0;/*_dumb_it_build_checkpoints(sigdata, 0);*/
+
+ {+ const char *tag[2][2];
+ tag[0][0] = "TITLE";
+ tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
+ tag[1][0] = "FORMAT";
+ tag[1][1] = "RIFF AMFF";
+ return make_duh( length, 2, ( const char * const (*) [ 2 ] ) tag, 1, & descptr, & sigdata );
+ }
+}
+
+DUH *dumb_read_riff_am( DUMBFILE * f, struct riff * stream )
+{+ sigdata_t *sigdata;
+
+ DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
+
+ sigdata = it_riff_am_load_sigdata( f, stream );
+
+ if (!sigdata)
+ return NULL;
+
+ {+ const char *tag[2][2];
+ tag[0][0] = "TITLE";
+ tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
+ tag[1][0] = "FORMAT";
+ tag[1][1] = "RIFF AM";
+ return make_duh( -1, 2, ( const char * const (*) [ 2 ] ) tag, 1, & descptr, & sigdata );
+ }
+}
--- /dev/null
+++ b/src/it/readamf.c
@@ -1,0 +1,559 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readamf.c - Code to read a DSMI AMF module from / / \ \
+ * an open file. | < / \_
+ * | \/ /\ /
+ * By Chris Moeller. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+static void it_amf_process_track( IT_ENTRY *entry_table, unsigned char *track, int rows, int channels )
+{+ int last_instrument = 0;
+ int tracksize = track[ 0 ] + ( track[ 1 ] << 8 ) + ( track[ 2 ] << 16 );
+ track += 3;
+ while ( tracksize-- ) {+ unsigned int row = track[ 0 ];
+ unsigned int command = track[ 1 ];
+ unsigned int argument = track[ 2 ];
+ IT_ENTRY * entry = entry_table + row * channels;
+ if ( row >= ( unsigned int ) rows ) break;
+ if ( command < 0x7F ) {+ entry->mask |= IT_ENTRY_NOTE | IT_ENTRY_INSTRUMENT | IT_ENTRY_VOLPAN;
+ entry->note = command;
+ if ( ! entry->instrument ) entry->instrument = last_instrument;
+ entry->volpan = argument;
+ }
+ else if ( command == 0x7F ) {+ signed char row_delta = ( signed char ) argument;
+ int row_source = ( int ) row + ( int ) row_delta;
+ if ( row_source >= 0 && row_source < ( int ) rows ) {+ *entry = entry_table[ row_source * channels ];
+ }
+ }
+ else if ( command == 0x80 ) {+ entry->mask |= IT_ENTRY_INSTRUMENT;
+ last_instrument = argument + 1;
+ entry->instrument = last_instrument;
+ }
+ else if ( command == 0x83 ) {+ entry->mask |= IT_ENTRY_VOLPAN;
+ entry->volpan = argument;
+ }
+ else {+ unsigned int effect = command & 0x7F;
+ unsigned int effectvalue = argument;
+ switch (effect) {+ case 0x01: effect = IT_SET_SPEED; break;
+
+ case 0x02: effect = IT_VOLUME_SLIDE;
+ case 0x0A: if ( effect == 0x0A ) effect = IT_VOLSLIDE_TONEPORTA;
+ case 0x0B: if ( effect == 0x0B ) effect = IT_VOLSLIDE_VIBRATO;
+ if ( effectvalue & 0x80 ) effectvalue = ( -( signed char ) effectvalue ) & 0x0F;
+ else effectvalue = ( effectvalue & 0x0F ) << 4;
+ break;
+
+ case 0x04:
+ if ( effectvalue & 0x80 ) {+ effect = IT_PORTAMENTO_UP;
+ effectvalue = ( -( signed char ) effectvalue ) & 0x7F;
+ }
+ else {+ effect = IT_PORTAMENTO_DOWN;
+ }
+ break;
+
+ case 0x06: effect = IT_TONE_PORTAMENTO; break;
+
+ case 0x07: effect = IT_TREMOR; break;
+
+ case 0x08: effect = IT_ARPEGGIO; break;
+
+ case 0x09: effect = IT_VIBRATO; break;
+
+ case 0x0C: effect = IT_BREAK_TO_ROW; break;
+
+ case 0x0D: effect = IT_JUMP_TO_ORDER; break;
+
+ case 0x0F: effect = IT_RETRIGGER_NOTE; break;
+
+ case 0x10: effect = IT_SET_SAMPLE_OFFSET; break;
+
+ case 0x11:
+ if ( effectvalue ) {+ effect = IT_VOLUME_SLIDE;
+ if ( effectvalue & 0x80 )
+ effectvalue = 0xF0 | ( ( -( signed char ) effectvalue ) & 0x0F );
+ else
+ effectvalue = 0x0F | ( ( effectvalue & 0x0F ) << 4 );
+ }
+ else
+ effect = 0;
+ break;
+
+ case 0x12:
+ case 0x16:
+ if ( effectvalue ) {+ int mask = ( effect == 0x16 ) ? 0xE0 : 0xF0;
+ effect = ( effectvalue & 0x80 ) ? IT_PORTAMENTO_UP : IT_PORTAMENTO_DOWN;
+ if ( effectvalue & 0x80 )
+ effectvalue = mask | ( ( -( signed char ) effectvalue ) & 0x0F );
+ else
+ effectvalue = mask | ( effectvalue & 0x0F );
+ }
+ else
+ effect = 0;
+ break;
+
+ case 0x13:
+ effect = IT_S;
+ effectvalue = EFFECT_VALUE( IT_S_NOTE_DELAY, effectvalue & 0x0F );
+ break;
+
+ case 0x14:
+ effect = IT_S;
+ effectvalue = EFFECT_VALUE( IT_S_DELAYED_NOTE_CUT, effectvalue & 0x0F );
+ break;
+
+ case 0x15: effect = IT_SET_SONG_TEMPO; break;
+
+ case 0x17:
+ effectvalue = ( effectvalue + 64 ) & 0x7F;
+ if ( entry->mask & IT_ENTRY_EFFECT ) {+ if ( !( entry->mask & IT_ENTRY_VOLPAN ) ) {+ entry->mask |= IT_ENTRY_VOLPAN;
+ entry->volpan = ( effectvalue / 2 ) + 128;
+ }
+ effect = 0;
+ }
+ else {+ effect = IT_SET_PANNING;
+ }
+ break;
+
+ default: effect = effectvalue = 0;
+ }
+ if ( effect ) {+ entry->mask |= IT_ENTRY_EFFECT;
+ entry->effect = effect;
+ entry->effectvalue = effectvalue;
+ }
+ }
+ track += 3;
+ }
+}
+
+static int it_amf_process_pattern( IT_PATTERN *pattern, IT_ENTRY *entry_table, int rows, int channels )
+{+ int i, j;
+ int n_entries = rows;
+ IT_ENTRY * entry;
+
+ pattern->n_rows = rows;
+
+ for ( i = 0, j = channels * rows; i < j; i++ ) {+ if ( entry_table[ i ].mask ) {+ n_entries++;
+ }
+ }
+
+ pattern->n_entries = n_entries;
+
+ pattern->entry = entry = malloc( n_entries * sizeof( IT_ENTRY ) );
+ if ( !entry ) {+ return -1;
+ }
+
+ for ( i = 0; i < rows; i++ ) {+ for ( j = 0; j < channels; j++ ) {+ if ( entry_table[ i * channels + j ].mask ) {+ *entry = entry_table[ i * channels + j ];
+ entry->channel = j;
+ entry++;
+ }
+ }
+ IT_SET_END_ROW( entry );
+ entry++;
+ }
+
+ return 0;
+}
+
+static int it_amf_read_sample_header( IT_SAMPLE *sample, DUMBFILE *f, int * offset, int ver )
+{+ int exists;
+
+ exists = dumbfile_getc( f );
+
+ dumbfile_getnc( (char *) sample->name, 32, f );
+ sample->name[32] = 0;
+
+ dumbfile_getnc( (char *) sample->filename, 13, f );
+ sample->filename[13] = 0;
+
+ *offset = (int)dumbfile_igetl( f );
+ sample->length = dumbfile_igetl( f );
+ sample->C5_speed = dumbfile_igetw( f );
+ sample->default_volume = dumbfile_getc( f );
+ sample->global_volume = 64;
+ if ( sample->default_volume > 64 ) sample->default_volume = 64;
+
+ if ( ver >= 11 ) {+ sample->loop_start = dumbfile_igetl( f );
+ sample->loop_end = dumbfile_igetl( f );
+ } else {+ sample->loop_start = dumbfile_igetw( f );
+ sample->loop_end = sample->length;
+ }
+
+ if ( sample->length <= 0 ) {+ sample->flags = 0;
+ return 0;
+ }
+
+ sample->flags = exists == 1 ? IT_SAMPLE_EXISTS : 0;
+
+ sample->default_pan = 0;
+ sample->finetune = 0;
+
+ if ( sample->loop_end > sample->loop_start + 2 && sample->loop_end <= sample->length )
+ sample->flags |= IT_SAMPLE_LOOP;
+
+ sample->vibrato_speed = 0;
+ sample->vibrato_depth = 0;
+ sample->vibrato_rate = 0;
+ sample->vibrato_waveform = 0; // do we have to set _all_ these?
+ sample->max_resampling_quality = -1;
+
+ return dumbfile_error(f);
+}
+
+
+
+static int it_amf_read_sample_data( IT_SAMPLE *sample, DUMBFILE *f )
+{+ int i, read_length = 0;
+
+ sample->data = malloc( sample->length );
+
+ if ( !sample->data )
+ return -1;
+
+ if ( sample->length )
+ read_length = (int)dumbfile_getnc( sample->data, sample->length, f );
+
+ for ( i = 0; i < read_length; i++ ) {+ ( ( signed char * ) sample->data )[ i ] ^= 0x80;
+ }
+
+ for ( i = read_length; i < sample->length; i++ ) {+ ( ( signed char * ) sample->data )[ i ] = 0;
+ }
+
+ return 0; /* Sometimes the last sample is truncated :( */
+}
+
+static DUMB_IT_SIGDATA *it_amf_load_sigdata(DUMBFILE *f, int * version)
+{+ DUMB_IT_SIGDATA *sigdata;
+ int i, j, ver, ntracks, realntracks, nchannels;
+
+ int maxsampleseekpos = 0;
+ int sampleseekpos[256];
+
+ unsigned short *orderstotracks;
+ unsigned short *trackmap;
+ unsigned int tracksize[256];
+
+ unsigned char **track;
+
+ static const char sig[] = "AMF";
+
+ char signature [3];
+
+ if ( dumbfile_getnc( signature, 3, f ) != 3 ||
+ memcmp( signature, sig, 3 ) ) {+ return NULL;
+ }
+
+ *version = ver = dumbfile_getc( f );
+ if ( ver < 10 || ver > 14) {+ return NULL;
+ }
+
+ sigdata = malloc(sizeof(*sigdata));
+ if (!sigdata) {+ return NULL;
+ }
+
+ dumbfile_getnc( (char *) sigdata->name, 32, f );
+ sigdata->name[ 32 ] = 0;
+ sigdata->n_samples = dumbfile_getc( f );
+ sigdata->n_orders = dumbfile_getc( f );
+ ntracks = dumbfile_igetw( f );
+ nchannels = dumbfile_getc( f );
+
+ if ( dumbfile_error( f ) ||
+ sigdata->n_samples < 1 || sigdata->n_samples > 255 ||
+ sigdata->n_orders < 1 || sigdata->n_orders > 255 ||
+ ! ntracks ||
+ nchannels < 1 || nchannels > 32 ) {+ free( sigdata );
+ return NULL;
+ }
+
+ sigdata->n_pchannels = nchannels;
+
+ memset( sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS );
+
+ if ( ver >= 11 ) {+ int nchannels = ( ver >= 13 ) ? 32 : 16;
+ for ( i = 0; i < nchannels; i++ ) {+ signed char panpos = dumbfile_getc( f );
+ int pan = ( panpos + 64 ) / 2;
+ if ( pan < 0 ) pan = 0;
+ else if ( pan > 64 ) pan = IT_SURROUND;
+ sigdata->channel_pan[ i ] = pan;
+ }
+ }
+ else {+ int sep = 32 * dumb_it_default_panning_separation / 100;
+ for ( i = 0; i < 16; i++ ) {+ sigdata->channel_pan[ i ] = ( dumbfile_getc( f ) & 1 ) ? 32 - sep : 32 + sep;
+ }
+ }
+
+ sigdata->tempo = 125;
+ sigdata->speed = 6;
+ if ( ver >= 13 ) {+ i = dumbfile_getc( f );
+ if ( i >= 32 ) sigdata->tempo = i;
+ i = dumbfile_getc( f );
+ if ( i <= 32 ) sigdata->speed = i;
+ }
+
+ sigdata->order = malloc( sigdata->n_orders );
+ if ( !sigdata->order ) {+ free( sigdata );
+ return NULL;
+ }
+
+ orderstotracks = malloc( sigdata->n_orders * nchannels * sizeof( unsigned short ) );
+ if ( !orderstotracks ) {+ free( sigdata->order );
+ free( sigdata );
+ return NULL;
+ }
+
+ for ( i = 0; i < sigdata->n_orders; i++ ) {+ sigdata->order[ i ] = i;
+ tracksize[ i ] = 64;
+ if ( ver >= 14 ) {+ tracksize[ i ] = dumbfile_igetw( f );
+ }
+ for ( j = 0; j < nchannels; j++ ) {+ orderstotracks[ i * nchannels + j ] = dumbfile_igetw( f );
+ }
+ }
+
+ if ( dumbfile_error( f ) ) {+ free( orderstotracks );
+ free( sigdata->order );
+ free( sigdata );
+ return NULL;
+ }
+
+ sigdata->sample = malloc( sigdata->n_samples * sizeof( *sigdata->sample ) );
+ if ( !sigdata->sample ) {+ free( orderstotracks );
+ free( sigdata->order );
+ free( sigdata );
+ return NULL;
+ }
+
+ sigdata->restart_position = 0;
+
+ sigdata->song_message = NULL;
+ sigdata->instrument = NULL;
+ sigdata->pattern = NULL;
+ sigdata->midi = NULL;
+ sigdata->checkpoint = NULL;
+
+ sigdata->n_instruments = 0;
+
+ for ( i = 0; i < sigdata->n_samples; ++i )
+ sigdata->sample[i].data = NULL;
+
+ for ( i = 0; i < sigdata->n_samples; ++i ) {+ int offset;
+ if ( it_amf_read_sample_header( &sigdata->sample[i], f, &offset, ver ) ) {+ goto error_ott;
+ }
+ sampleseekpos[ i ] = offset;
+ if ( offset > maxsampleseekpos ) maxsampleseekpos = offset;
+ }
+
+ sigdata->n_patterns = sigdata->n_orders;
+
+ sigdata->pattern = malloc( sigdata->n_patterns * sizeof( *sigdata->pattern ) );
+ if ( !sigdata->pattern ) {+ goto error_ott;
+ }
+ for (i = 0; i < sigdata->n_patterns; ++i)
+ sigdata->pattern[i].entry = NULL;
+
+ trackmap = malloc( ntracks * sizeof( unsigned short ) );
+ if ( !trackmap ) {+ goto error_ott;
+ }
+
+ if ( dumbfile_getnc( ( char * ) trackmap, ntracks * sizeof( unsigned short ), f ) != (long)(ntracks * sizeof( unsigned short )) ) {+ goto error_tm;
+ }
+
+ realntracks = 0;
+
+ for ( i = 0; i < ntracks; i++ ) {+ if ( trackmap[ i ] > realntracks ) realntracks = trackmap[ i ];
+ }
+
+ track = calloc( realntracks, sizeof( unsigned char * ) );
+ if ( !track ) {+ goto error_tm;
+ }
+
+ for ( i = 0; i < realntracks; i++ ) {+ int tracksize = dumbfile_igetw( f );
+ tracksize += dumbfile_getc( f ) << 16;
+ track[ i ] = malloc( tracksize * 3 + 3 );
+ if ( !track[ i ] ) {+ goto error_all;
+ }
+ track[ i ][ 0 ] = tracksize & 255;
+ track[ i ][ 1 ] = ( tracksize >> 8 ) & 255;
+ track[ i ][ 2 ] = ( tracksize >> 16 ) & 255;
+ if ( dumbfile_getnc( (char *) track[ i ] + 3, tracksize * 3, f ) != tracksize * 3 ) {+ goto error_all;
+ }
+ }
+
+ for ( i = 1; i <= maxsampleseekpos; i++ ) {+ for ( j = 0; j < sigdata->n_samples; j++ ) {+ if ( sampleseekpos[ j ] == i ) {+ if ( it_amf_read_sample_data( &sigdata->sample[ j ], f ) ) {+ goto error_all;
+ }
+ break;
+ }
+ }
+ }
+
+ /* Process tracks into patterns */
+ for ( i = 0; i < sigdata->n_patterns; i++ ) {+ IT_ENTRY * entry_table = calloc( tracksize[ i ] * nchannels, sizeof( IT_ENTRY ) );
+ if ( !entry_table ) {+ goto error_all;
+ }
+ for ( j = 0; j < nchannels; j++ ) {+ int ntrack = orderstotracks[ i * nchannels + j ];
+ if ( ntrack && ntrack <= ntracks ) {+ int realtrack = trackmap[ ntrack - 1 ];
+ if ( realtrack ) {+ realtrack--;
+ if ( realtrack < realntracks && track[ realtrack ] ) {+ it_amf_process_track( entry_table + j, track[ realtrack ], tracksize[ i ], nchannels );
+ }
+ }
+ }
+ }
+ if ( it_amf_process_pattern( &sigdata->pattern[ i ], entry_table, tracksize[ i ], nchannels ) ) {+ free( entry_table );
+ goto error_all;
+ }
+ free( entry_table );
+ }
+
+ /* Now let's initialise the remaining variables, and we're done! */
+ sigdata->flags = IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_STEREO | IT_WAS_AN_S3M;
+
+ sigdata->global_volume = 128;
+ sigdata->mixing_volume = 48;
+ sigdata->pan_separation = 128;
+
+ _dumb_it_fix_invalid_orders(sigdata);
+
+ for ( i = 0; i < realntracks; i++ ) {+ if ( track[ i ] ) {+ free( track[ i ] );
+ }
+ }
+ free( track );
+ free( trackmap );
+ free( orderstotracks );
+
+ return sigdata;
+
+error_all:
+ for ( i = 0; i < realntracks; i++ ) {+ if ( track[ i ] ) {+ free( track[ i ] );
+ }
+ }
+ free( track );
+error_tm:
+ free( trackmap );
+error_ott:
+ free( orderstotracks );
+ _dumb_it_unload_sigdata( sigdata );
+ return NULL;
+}
+
+
+
+DUH *dumb_read_amf_quick(DUMBFILE *f)
+{+ sigdata_t *sigdata;
+
+ DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
+
+ int version;
+
+ sigdata = it_amf_load_sigdata(f, &version);
+
+ if (!sigdata)
+ return NULL;
+
+ {+ const char *tag[2][2];
+ char ver_string[14];
+ tag[0][0] = "TITLE";
+ tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
+ tag[1][0] = "FORMAT";
+ memcpy( ver_string, "DSMI AMF v", 10 );
+ ver_string[10] = '0' + version / 10;
+ ver_string[11] = '.';
+ ver_string[12] = '0' + version % 10;
+ ver_string[13] = 0;
+ tag[1][1] = ver_string;
+ return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
+ }
+}
--- /dev/null
+++ b/src/it/readamf2.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readamf2.c - Function to read a DSMI AMF module / / \ \
+ * from an open file and do an initial | < / \_
+ * run-through. | \/ /\ /
+ * \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+
+
+
+DUH *dumb_read_amf(DUMBFILE *f)
+{+ DUH *duh = dumb_read_amf_quick(f);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/readany.c
@@ -1,0 +1,132 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readany.c - Code to detect and read any of the / / \ \
+ * module formats supported by DUMB. | < / \_
+ * | \/ /\ /
+ * By Chris Moeller. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "dumb.h"
+
+#ifdef _MSC_VER
+ #define strnicmp _strnicmp
+#else
+ #if defined(unix) || defined(__unix__) || defined(__unix)
+ #include <strings.h>
+ #endif
+ #define strnicmp strncasecmp
+#endif
+
+enum { maximum_signature_size = 0x30 };+
+DUH *dumb_read_any_quick(DUMBFILE *f, int restrict_, int subsong)
+{+ unsigned char signature[ maximum_signature_size ];
+ unsigned long signature_size;
+ DUH * duh = NULL;
+
+ /* signature_size = dumbfile_get_size(f); */
+
+ signature_size = dumbfile_getnc( (char *)signature, maximum_signature_size, f );
+ dumbfile_seek( f, 0, DFS_SEEK_SET );
+
+ if (signature_size >= 4 &&
+ signature[0] == 'I' && signature[1] == 'M' &&
+ signature[2] == 'P' && signature[3] == 'M')
+ {+ duh = dumb_read_it_quick( f );
+ }
+ else if (signature_size >= 17 && !memcmp(signature, "Extended Module: ", 17))
+ {+ duh = dumb_read_xm_quick( f );
+ }
+ else if (signature_size >= 0x30 &&
+ signature[0x2C] == 'S' && signature[0x2D] == 'C' &&
+ signature[0x2E] == 'R' && signature[0x2F] == 'M')
+ {+ duh = dumb_read_s3m_quick( f );
+ }
+ else if (signature_size >= 30 &&
+ /*signature[28] == 0x1A &&*/ signature[29] == 2 &&
+ ( ! strnicmp( ( const char * ) signature + 20, "!Scream!", 8 ) ||
+ ! strnicmp( ( const char * ) signature + 20, "BMOD2STM", 8 ) ||
+ ! strnicmp( ( const char * ) signature + 20, "WUZAMOD!", 8 ) ) )
+ {+ duh = dumb_read_stm_quick( f );
+ }
+ else if (signature_size >= 2 &&
+ ((signature[0] == 0x69 && signature[1] == 0x66) ||
+ (signature[0] == 0x4A && signature[1] == 0x4E)))
+ {+ duh = dumb_read_669_quick( f );
+ }
+ else if (signature_size >= 0x30 &&
+ signature[0x2C] == 'P' && signature[0x2D] == 'T' &&
+ signature[0x2E] == 'M' && signature[0x2F] == 'F')
+ {+ duh = dumb_read_ptm_quick( f );
+ }
+ else if (signature_size >= 4 &&
+ signature[0] == 'P' && signature[1] == 'S' &&
+ signature[2] == 'M' && signature[3] == ' ')
+ {+ duh = dumb_read_psm_quick( f, subsong );
+ }
+ else if (signature_size >= 4 &&
+ signature[0] == 'P' && signature[1] == 'S' &&
+ signature[2] == 'M' && signature[3] == 254)
+ {+ duh = dumb_read_old_psm_quick( f );
+ }
+ else if (signature_size >= 3 &&
+ signature[0] == 'M' && signature[1] == 'T' &&
+ signature[2] == 'M')
+ {+ duh = dumb_read_mtm_quick( f );
+ }
+ else if ( signature_size >= 4 &&
+ signature[0] == 'R' && signature[1] == 'I' &&
+ signature[2] == 'F' && signature[3] == 'F')
+ {+ duh = dumb_read_riff_quick( f );
+ }
+ else if ( signature_size >= 24 &&
+ !memcmp( signature, "ASYLUM Music Format", 19 ) &&
+ !memcmp( signature + 19, " V1.0", 5 ) )
+ {+ duh = dumb_read_asy_quick( f );
+ }
+ else if ( signature_size >= 3 &&
+ signature[0] == 'A' && signature[1] == 'M' &&
+ signature[2] == 'F')
+ {+ duh = dumb_read_amf_quick( f );
+ }
+ else if ( signature_size >= 8 &&
+ !memcmp( signature, "OKTASONG", 8 ) )
+ {+ duh = dumb_read_okt_quick( f );
+ }
+
+ if ( !duh )
+ {+ dumbfile_seek( f, 0, DFS_SEEK_SET );
+ duh = dumb_read_mod_quick( f, restrict_ );
+ }
+
+ return duh;
+}
--- /dev/null
+++ b/src/it/readany2.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readany2.c - Code to detect and read any of the / / \ \
+ * module formats supported by DUMB | < / \_
+ * from an open file and do an initial | \/ /\ /
+ * run-through. \_ / > /
+ * | \ / /
+ * by Chris Moeller. | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+
+
+
+DUH *dumb_read_any(DUMBFILE *f, int restrict_, int subsong)
+{+ DUH *duh = dumb_read_any_quick(f, restrict_, subsong);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/readasy.c
@@ -1,0 +1,339 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readasy.c - Code to read an ASYLUM Music Format / / \ \
+ * module from an open file. | < / \_
+ * | \/ /\ /
+ * By Chris Moeller. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+static int it_asy_read_pattern( IT_PATTERN *pattern, DUMBFILE *f, unsigned char *buffer )
+{+ int pos;
+ int channel;
+ int row;
+ IT_ENTRY *entry;
+
+ pattern->n_rows = 64;
+
+ if ( dumbfile_getnc( (char *) buffer, 64 * 8 * 4, f ) != 64 * 8 * 4 )
+ return -1;
+
+ /* compute number of entries */
+ pattern->n_entries = 64; /* Account for the row end markers */
+ pos = 0;
+ for ( row = 0; row < 64; ++row ) {+ for ( channel = 0; channel < 8; ++channel ) {+ if ( buffer[ pos + 0 ] | buffer[ pos + 1 ] | buffer[ pos + 2 ] | buffer[ pos + 3 ] )
+ ++pattern->n_entries;
+ pos += 4;
+ }
+ }
+
+ pattern->entry = malloc( pattern->n_entries * sizeof( *pattern->entry ) );
+ if ( !pattern->entry )
+ return -1;
+
+ entry = pattern->entry;
+ pos = 0;
+ for ( row = 0; row < 64; ++row ) {+ for ( channel = 0; channel < 8; ++channel ) {+ if ( buffer[ pos + 0 ] | buffer[ pos + 1 ] | buffer[ pos + 2 ] | buffer[ pos + 3 ] ) {+ entry->channel = channel;
+ entry->mask = 0;
+
+ if ( buffer[ pos + 0 ] && buffer[ pos + 0 ] < 96 ) {+ entry->note = buffer[ pos + 0 ];
+ entry->mask |= IT_ENTRY_NOTE;
+ }
+
+ if ( buffer[ pos + 1 ] && buffer[ pos + 1 ] <= 64 ) {+ entry->instrument = buffer[ pos + 1 ];
+ entry->mask |= IT_ENTRY_INSTRUMENT;
+ }
+
+ _dumb_it_xm_convert_effect( buffer[ pos + 2 ], buffer[ pos + 3 ], entry, 1 );
+
+ // fixup
+ switch ( entry->effect ) {+ case IT_SET_PANNING:
+ entry->effectvalue <<= 1;
+ break;
+ }
+
+ if ( entry->mask ) ++entry;
+ }
+ pos += 4;
+ }
+ IT_SET_END_ROW( entry );
+ ++entry;
+ }
+
+ pattern->n_entries = entry - pattern->entry;
+
+ return 0;
+}
+
+
+
+static int it_asy_read_sample_header( IT_SAMPLE *sample, DUMBFILE *f )
+{+ int finetune, key_offset;
+
+/**
+ 21 22 Chars Sample 1 name. If the name is not a full
+ 22 chars in length, it will be null
+ terminated.
+
+If
+the sample name begins with a '#' character (ASCII $23 (35)) then this is
+assumed not to be an instrument name, and is probably a message.
+*/
+ dumbfile_getnc( (char *) sample->name, 22, f );
+ sample->name[22] = 0;
+
+ sample->filename[0] = 0;
+
+/** Each finetune step changes the note 1/8th of a semitone. */
+ finetune = ( signed char ) ( dumbfile_getc( f ) << 4 ) >> 4; /* signed nibble */
+ sample->default_volume = dumbfile_getc( f ); // Should we be setting global_volume to this instead?
+ sample->global_volume = 64;
+ if ( sample->default_volume > 64 ) sample->default_volume = 64;
+ key_offset = ( signed char ) dumbfile_getc( f ); /* base key offset */
+ sample->length = dumbfile_igetl( f );
+ sample->loop_start = dumbfile_igetl( f );
+ sample->loop_end = sample->loop_start + dumbfile_igetl( f );
+
+ if ( sample->length <= 0 ) {+ sample->flags = 0;
+ return 0;
+ }
+
+ sample->flags = IT_SAMPLE_EXISTS;
+
+ sample->default_pan = 0;
+ sample->C5_speed = (int)( AMIGA_CLOCK / 214.0 * pow( DUMB_SEMITONE_BASE, key_offset ) );//( long )( 16726.0 * pow( DUMB_PITCH_BASE, finetune * 32 ) );
+ sample->finetune = finetune * 32;
+ // the above line might be wrong
+
+ if ( ( sample->loop_end - sample->loop_start > 2 ) && ( sample->loop_end <= sample->length ) )
+ sample->flags |= IT_SAMPLE_LOOP;
+
+ sample->vibrato_speed = 0;
+ sample->vibrato_depth = 0;
+ sample->vibrato_rate = 0;
+ sample->vibrato_waveform = 0; // do we have to set _all_ these?
+ sample->max_resampling_quality = -1;
+
+ return dumbfile_error(f);
+}
+
+
+
+static int it_asy_read_sample_data( IT_SAMPLE *sample, DUMBFILE *f )
+{+ long truncated_size;
+
+ /* let's get rid of the sample data coming after the end of the loop */
+ if ( ( sample->flags & IT_SAMPLE_LOOP ) && sample->loop_end < sample->length ) {+ truncated_size = sample->length - sample->loop_end;
+ sample->length = sample->loop_end;
+ } else {+ truncated_size = 0;
+ }
+
+ sample->data = malloc( sample->length );
+
+ if ( !sample->data )
+ return -1;
+
+ if ( sample->length )
+ dumbfile_getnc( sample->data, sample->length, f );
+
+ dumbfile_skip( f, truncated_size );
+
+ return dumbfile_error( f );
+}
+
+
+
+static DUMB_IT_SIGDATA *it_asy_load_sigdata(DUMBFILE *f)
+{+ DUMB_IT_SIGDATA *sigdata;
+ int i;
+
+ static const char sig_part[] = "ASYLUM Music Format";
+ static const char sig_rest[] = " V1.0"; /* whee, string space optimization with format type below */
+
+ char signature [32];
+
+ if ( dumbfile_getnc( signature, 32, f ) != 32 ||
+ memcmp( signature, sig_part, 19 ) ||
+ memcmp( signature + 19, sig_rest, 5 ) ) {+ return NULL;
+ }
+
+ sigdata = malloc(sizeof(*sigdata));
+ if (!sigdata) {+ return NULL;
+ }
+
+ sigdata->speed = dumbfile_getc( f ); /* XXX seems to fit the files I have */
+ sigdata->tempo = dumbfile_getc( f ); /* ditto */
+ sigdata->n_samples = dumbfile_getc( f ); /* ditto */
+ sigdata->n_patterns = dumbfile_getc( f );
+ sigdata->n_orders = dumbfile_getc( f );
+ sigdata->restart_position = dumbfile_getc( f );
+
+ if ( dumbfile_error( f ) || !sigdata->n_samples || sigdata->n_samples > 64 || !sigdata->n_patterns ||
+ !sigdata->n_orders ) {+ free( sigdata );
+ return NULL;
+ }
+
+ if ( sigdata->restart_position > sigdata->n_orders ) /* XXX */
+ sigdata->restart_position = 0;
+
+ sigdata->order = malloc( sigdata->n_orders );
+ if ( !sigdata->order ) {+ free( sigdata );
+ return NULL;
+ }
+
+ if ( dumbfile_getnc( (char *) sigdata->order, sigdata->n_orders, f ) != sigdata->n_orders ||
+ dumbfile_skip( f, 256 - sigdata->n_orders ) ) {+ free( sigdata->order );
+ free( sigdata );
+ return NULL;
+ }
+
+ sigdata->sample = malloc( sigdata->n_samples * sizeof( *sigdata->sample ) );
+ if ( !sigdata->sample ) {+ free( sigdata->order );
+ free( sigdata );
+ return NULL;
+ }
+
+ sigdata->song_message = NULL;
+ sigdata->instrument = NULL;
+ sigdata->pattern = NULL;
+ sigdata->midi = NULL;
+ sigdata->checkpoint = NULL;
+
+ sigdata->n_instruments = 0;
+
+ for ( i = 0; i < sigdata->n_samples; ++i )
+ sigdata->sample[i].data = NULL;
+
+ for ( i = 0; i < sigdata->n_samples; ++i ) {+ if ( it_asy_read_sample_header( &sigdata->sample[i], f ) ) {+ _dumb_it_unload_sigdata( sigdata );
+ return NULL;
+ }
+ }
+
+ if ( dumbfile_skip( f, 37 * ( 64 - sigdata->n_samples ) ) ) {+ _dumb_it_unload_sigdata( sigdata );
+ return NULL;
+ }
+
+ sigdata->pattern = malloc( sigdata->n_patterns * sizeof( *sigdata->pattern ) );
+ if ( !sigdata->pattern ) {+ _dumb_it_unload_sigdata( sigdata );
+ return NULL;
+ }
+ for (i = 0; i < sigdata->n_patterns; ++i)
+ sigdata->pattern[i].entry = NULL;
+
+ /* Read in the patterns */
+ {+ unsigned char *buffer = malloc( 64 * 8 * 4 ); /* 64 rows * 8 channels * 4 bytes */
+ if ( !buffer ) {+ _dumb_it_unload_sigdata( sigdata );
+ return NULL;
+ }
+ for ( i = 0; i < sigdata->n_patterns; ++i ) {+ if ( it_asy_read_pattern( &sigdata->pattern[i], f, buffer ) != 0 ) {+ free( buffer );
+ _dumb_it_unload_sigdata( sigdata );
+ return NULL;
+ }
+ }
+ free( buffer );
+ }
+
+ /* And finally, the sample data */
+ for ( i = 0; i < sigdata->n_samples; ++i ) {+ if ( it_asy_read_sample_data( &sigdata->sample[i], f ) ) {+ _dumb_it_unload_sigdata( sigdata );
+ return NULL;
+ }
+ }
+
+ /* Now let's initialise the remaining variables, and we're done! */
+ sigdata->flags = IT_WAS_AN_XM | IT_WAS_A_MOD | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_STEREO;
+
+ sigdata->global_volume = 128;
+ sigdata->mixing_volume = 48;
+ sigdata->pan_separation = 128;
+
+ sigdata->n_pchannels = 8;
+
+ sigdata->name[0] = 0;
+
+ memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
+
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i += 4) {+ int sep = 32 * dumb_it_default_panning_separation / 100;
+ sigdata->channel_pan[i+0] = 32 - sep;
+ sigdata->channel_pan[i+1] = 32 + sep;
+ sigdata->channel_pan[i+2] = 32 + sep;
+ sigdata->channel_pan[i+3] = 32 - sep;
+ }
+
+ _dumb_it_fix_invalid_orders(sigdata);
+
+ return sigdata;
+}
+
+
+
+DUH *dumb_read_asy_quick(DUMBFILE *f)
+{+ sigdata_t *sigdata;
+
+ DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
+
+ sigdata = it_asy_load_sigdata(f);
+
+ if (!sigdata)
+ return NULL;
+
+ {+ const char *tag[2][2];
+ tag[0][0] = "TITLE";
+ tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
+ tag[1][0] = "FORMAT";
+ tag[1][1] = "ASYLUM Music Format";
+ return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
+ }
+}
--- /dev/null
+++ b/src/it/readdsmf.c
@@ -1,0 +1,383 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readam.c - Code to read a RIFF DSMF module / / \ \
+ * from a parsed RIFF structure. | < / \_
+ * | \/ /\ /
+ * By Chris Moeller. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+#include "internal/riff.h"
+
+static int it_riff_dsmf_process_sample( IT_SAMPLE * sample, DUMBFILE * f, int len )
+{+ int flags;
+
+ dumbfile_getnc( (char *) sample->filename, 13, f );
+ sample->filename[ 14 ] = 0;
+
+ flags = dumbfile_igetw( f );
+ sample->default_volume = dumbfile_getc( f );
+ sample->length = dumbfile_igetl( f );
+ sample->loop_start = dumbfile_igetl( f );
+ sample->loop_end = dumbfile_igetl( f );
+ dumbfile_skip( f, 32 - 28 );
+ sample->C5_speed = dumbfile_igetw( f ) * 2;
+ dumbfile_skip( f, 36 - 34 );
+ dumbfile_getnc( (char *) sample->name, 28, f );
+ sample->name[ 28 ] = 0;
+
+ /*if ( data[ 0x38 ] || data[ 0x39 ] || data[ 0x3A ] || data[ 0x3B ] )
+ return -1;*/
+
+ if ( ! sample->length ) {+ sample->flags &= ~IT_SAMPLE_EXISTS;
+ return 0;
+ }
+
+ /*if ( flags & ~( 2 | 1 ) )
+ return -1;*/
+
+ if ( sample->length + 64 > len )
+ return -1;
+
+ sample->flags = IT_SAMPLE_EXISTS;
+
+ sample->default_pan = 0;
+ sample->global_volume = 64;
+ sample->vibrato_speed = 0;
+ sample->vibrato_depth = 0;
+ sample->vibrato_rate = 0;
+ sample->vibrato_waveform = IT_VIBRATO_SINE;
+ sample->finetune = 0;
+ sample->max_resampling_quality = -1;
+
+ if ( flags & 1 )
+ {+ if (((unsigned int)sample->loop_end <= (unsigned int)sample->length) &&
+ ((unsigned int)sample->loop_start < (unsigned int)sample->loop_end))
+ {+ sample->length = sample->loop_end;
+ sample->flags |= IT_SAMPLE_LOOP;
+ if ( flags & 0x10 ) sample->flags |= IT_SAMPLE_PINGPONG_LOOP;
+ }
+ }
+
+ sample->data = malloc( sample->length );
+ if ( ! sample->data )
+ return -1;
+
+ dumbfile_getnc( sample->data, sample->length, f );
+
+ if ( ! ( flags & 2 ) )
+ {+ for ( flags = 0; flags < sample->length; ++flags )
+ ( ( signed char * ) sample->data ) [ flags ] ^= 0x80;
+ }
+
+ return 0;
+}
+
+static int it_riff_dsmf_process_pattern( IT_PATTERN * pattern, DUMBFILE * f, int len )
+{+ int length, row;
+ unsigned flags;
+ long start, end;
+ int p, q, r;
+ IT_ENTRY * entry;
+
+ length = dumbfile_igetw( f );
+ if ( length > len ) return -1;
+
+ len = length - 2;
+
+ pattern->n_rows = 64;
+ pattern->n_entries = 64;
+
+ row = 0;
+
+ start = dumbfile_pos( f );
+ end = start + len;
+
+ while ( (row < 64) && !dumbfile_error( f ) && (dumbfile_pos( f ) < end) ) {+ p = dumbfile_getc( f );
+ if ( ! p ) {+ ++ row;
+ continue;
+ }
+
+ flags = p & 0xF0;
+
+ if (flags) {+ ++ pattern->n_entries;
+ if (flags & 0x80) dumbfile_skip( f, 1 );
+ if (flags & 0x40) dumbfile_skip( f, 1 );
+ if (flags & 0x20) dumbfile_skip( f, 1 );
+ if (flags & 0x10) dumbfile_skip( f, 2 );
+ }
+ }
+
+ if ( pattern->n_entries == 64 ) return 0;
+
+ pattern->entry = malloc( pattern->n_entries * sizeof( * pattern->entry ) );
+ if ( ! pattern->entry ) return -1;
+
+ entry = pattern->entry;
+
+ row = 0;
+
+ if ( dumbfile_seek( f, start, DFS_SEEK_SET ) ) return -1;
+
+ while ( ( row < 64 ) && !dumbfile_error( f ) && ( dumbfile_pos( f ) < end ) )
+ {+ p = dumbfile_getc( f );
+ if ( ! p )
+ {+ IT_SET_END_ROW( entry );
+ ++ entry;
+ ++ row;
+ continue;
+ }
+
+ flags = p;
+ entry->channel = flags & 0x0F;
+ entry->mask = 0;
+
+ if ( flags & 0xF0 )
+ {+ if ( flags & 0x80 )
+ {+ q = dumbfile_getc( f );
+ if ( q )
+ {+ entry->mask |= IT_ENTRY_NOTE;
+ entry->note = q - 1;
+ }
+ }
+
+ if ( flags & 0x40 )
+ {+ q = dumbfile_getc( f );
+ if ( q )
+ {+ entry->mask |= IT_ENTRY_INSTRUMENT;
+ entry->instrument = q;
+ }
+ }
+
+ if ( flags & 0x20 )
+ {+ entry->mask |= IT_ENTRY_VOLPAN;
+ entry->volpan = dumbfile_getc( f );
+ }
+
+ if ( flags & 0x10 )
+ {+ q = dumbfile_getc( f );
+ r = dumbfile_getc( f );
+ _dumb_it_xm_convert_effect( q, r, entry, 0 );
+ }
+
+ if (entry->mask) entry++;
+ }
+ }
+
+ while ( row < 64 )
+ {+ IT_SET_END_ROW( entry );
+ ++ entry;
+ ++ row;
+ }
+
+ pattern->n_entries = entry - pattern->entry;
+ if ( ! pattern->n_entries ) return -1;
+
+ return 0;
+}
+
+static DUMB_IT_SIGDATA *it_riff_dsmf_load_sigdata( DUMBFILE * f, struct riff * stream )
+{+ DUMB_IT_SIGDATA *sigdata;
+
+ int n, o, found;
+
+ if ( ! stream ) goto error;
+
+ if ( stream->type != DUMB_ID( 'D', 'S', 'M', 'F' ) ) goto error;
+
+ sigdata = malloc(sizeof(*sigdata));
+ if ( ! sigdata ) goto error;
+
+ sigdata->n_patterns = 0;
+ sigdata->n_samples = 0;
+ sigdata->name[0] = 0;
+
+ found = 0;
+
+ for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
+ {+ struct riff_chunk * c = stream->chunks + n;
+ switch( c->type )
+ {+ case DUMB_ID( 'S' ,'O' ,'N' ,'G' ):
+ /* initialization data */
+ if ( ( found ) || ( c->size < 192 ) ) goto error_sd;
+ found = 1;
+ break;
+
+ case DUMB_ID( 'P', 'A', 'T', 'T' ):
+ ++ sigdata->n_patterns;
+ break;
+
+ case DUMB_ID( 'I', 'N', 'S', 'T' ):
+ ++ sigdata->n_samples;
+ break;
+ }
+ }
+
+ if ( !found || !sigdata->n_samples || !sigdata->n_patterns ) goto error_sd;
+
+ if ( sigdata->n_samples > 255 || sigdata->n_patterns > 255 ) goto error_sd;
+
+ sigdata->song_message = NULL;
+ sigdata->order = NULL;
+ sigdata->instrument = NULL;
+ sigdata->sample = NULL;
+ sigdata->pattern = NULL;
+ sigdata->midi = NULL;
+ sigdata->checkpoint = NULL;
+
+ sigdata->mixing_volume = 48;
+ sigdata->pan_separation = 128;
+
+ sigdata->n_instruments = 0;
+ sigdata->n_orders = 0;
+ sigdata->restart_position = 0;
+
+ memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
+
+ for (n = 0; n < DUMB_IT_N_CHANNELS; n += 4) {+ int sep = 32 * dumb_it_default_panning_separation / 100;
+ sigdata->channel_pan[n ] = 32 - sep;
+ sigdata->channel_pan[n+1] = 32 + sep;
+ sigdata->channel_pan[n+2] = 32 + sep;
+ sigdata->channel_pan[n+3] = 32 - sep;
+ }
+
+ for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
+ {+ struct riff_chunk * c = stream->chunks + n;
+ switch ( c->type )
+ {+ case DUMB_ID( 'S', 'O', 'N', 'G' ):
+ if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
+ dumbfile_getnc( (char *) sigdata->name, 28, f );
+ sigdata->name[ 28 ] = 0;
+ sigdata->flags = IT_STEREO | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX;
+ dumbfile_skip( f, 36 - 28 );
+ sigdata->n_orders = dumbfile_igetw( f );
+ //sigdata->n_samples = ptr[ 38 ] | ( ptr[ 39 ] << 8 ); // whatever
+ //sigdata->n_patterns = ptr[ 40 ] | ( ptr[ 41 ] << 8 );
+ dumbfile_skip( f, 42 - 38 );
+ sigdata->n_pchannels = dumbfile_igetw( f );
+ sigdata->global_volume = dumbfile_getc( f );
+ sigdata->mixing_volume = dumbfile_getc( f );
+ sigdata->speed = dumbfile_getc( f );
+ sigdata->tempo = dumbfile_getc( f );
+
+ for ( o = 0; o < 16; ++o )
+ {+ sigdata->channel_pan[ o ] = dumbfile_getc( f ) / 2;
+ }
+
+ sigdata->order = malloc( 128 );
+ if ( ! sigdata->order ) goto error_usd;
+ dumbfile_getnc( (char *) sigdata->order, 128, f );
+
+ break;
+ }
+ }
+
+ sigdata->pattern = malloc( sigdata->n_patterns * sizeof( *sigdata->pattern ) );
+ if ( ! sigdata->pattern ) goto error_usd;
+ for ( n = 0; n < sigdata->n_patterns; ++n )
+ sigdata->pattern[ n ].entry = NULL;
+
+ sigdata->sample = malloc( sigdata->n_samples * sizeof( *sigdata->sample ) );
+ if ( ! sigdata->sample ) goto error_usd;
+ for ( n = 0; n < sigdata->n_samples; ++n )
+ {+ IT_SAMPLE * sample = sigdata->sample + n;
+ sample->data = NULL;
+ }
+
+ sigdata->n_samples = 0;
+ sigdata->n_patterns = 0;
+
+ for ( n = 0; (unsigned)n < stream->chunk_count; ++n )
+ {+ struct riff_chunk * c = stream->chunks + n;
+ switch ( c->type )
+ {+ case DUMB_ID( 'P', 'A', 'T', 'T' ):
+ if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
+ if ( it_riff_dsmf_process_pattern( sigdata->pattern + sigdata->n_patterns, f, c->size ) ) goto error_usd;
+ ++ sigdata->n_patterns;
+ break;
+
+ case DUMB_ID( 'I', 'N', 'S', 'T' ):
+ if ( dumbfile_seek( f, c->offset, DFS_SEEK_SET ) ) goto error_usd;
+ if ( it_riff_dsmf_process_sample( sigdata->sample + sigdata->n_samples, f, c->size ) ) goto error_usd;
+ ++ sigdata->n_samples;
+ break;
+ }
+ }
+
+ _dumb_it_fix_invalid_orders( sigdata );
+
+ return sigdata;
+
+error_usd:
+ _dumb_it_unload_sigdata( sigdata );
+ goto error;
+error_sd:
+ free( sigdata );
+error:
+ return NULL;
+}
+
+DUH *dumb_read_riff_dsmf( DUMBFILE * f, struct riff * stream )
+{+ sigdata_t *sigdata;
+
+ DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
+
+ sigdata = it_riff_dsmf_load_sigdata( f, stream );
+
+ if (!sigdata)
+ return NULL;
+
+ {+ const char *tag[2][2];
+ tag[0][0] = "TITLE";
+ tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
+ tag[1][0] = "FORMAT";
+ tag[1][1] = "RIFF DSMF";
+ return make_duh( -1, 2, ( const char * const (*) [ 2 ] ) tag, 1, & descptr, & sigdata );
+ }
+}
--- /dev/null
+++ b/src/it/readmod.c
@@ -1,0 +1,637 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readmod.c - Code to read a good old-fashioned / / \ \
+ * Amiga module from an open file. | < / \_
+ * | \/ /\ /
+ * By entheh. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+static int it_mod_read_pattern(IT_PATTERN *pattern, DUMBFILE *f, int n_channels, unsigned char *buffer)
+{+ int pos;
+ int channel;
+ int row;
+ IT_ENTRY *entry;
+
+ pattern->n_rows = 64;
+
+ if (n_channels == 0) {+ /* Read the first four channels, leaving gaps for the rest. */
+ for (pos = 0; pos < 64*8*4; pos += 8*4)
+ dumbfile_getnc((char *)buffer + pos, 4*4, f);
+ /* Read the other channels into the gaps we left. */
+ for (pos = 4*4; pos < 64*8*4; pos += 8*4)
+ dumbfile_getnc((char *)buffer + pos, 4*4, f);
+
+ n_channels = 8;
+ } else
+ dumbfile_getnc((char *)buffer, 64 * n_channels * 4, f);
+
+ if (dumbfile_error(f))
+ return -1;
+
+ /* compute number of entries */
+ pattern->n_entries = 64; /* Account for the row end markers */
+ pos = 0;
+ for (row = 0; row < 64; row++) {+ for (channel = 0; channel < n_channels; channel++) {+ if (buffer[pos+0] | buffer[pos+1] | buffer[pos+2] | buffer[pos+3])
+ pattern->n_entries++;
+ pos += 4;
+ }
+ }
+
+ pattern->entry = malloc(pattern->n_entries * sizeof(*pattern->entry));
+ if (!pattern->entry)
+ return -1;
+
+ entry = pattern->entry;
+ pos = 0;
+ for (row = 0; row < 64; row++) {+ for (channel = 0; channel < n_channels; channel++) {+ if (buffer[pos+0] | buffer[pos+1] | buffer[pos+2] | buffer[pos+3]) {+ unsigned char sample = (buffer[pos+0] & 0xF0) | (buffer[pos+2] >> 4);
+ int period = ((int)(buffer[pos+0] & 0x0F) << 8) | buffer[pos+1];
+
+ entry->channel = channel;
+ entry->mask = 0;
+
+ if (period) {+ int note;
+ entry->mask |= IT_ENTRY_NOTE;
+
+ /* frequency = (AMIGA_DIVISOR / 8) / (period * 2)
+ * C-1: period = 214 -> frequency = 16726
+ * so, set C5_speed to 16726
+ * and period = 214 should translate to C5 aka 60
+ * halve the period, go up an octive
+ *
+ * period = 214 / pow(DUMB_SEMITONE_BASE, note - 60)
+ * pow(DUMB_SEMITONE_BASE, note - 60) = 214 / period
+ * note - 60 = log(214/period) / log(DUMB_SEMITONE_BASE)
+ */
+ note = (int)floor(log(214.0/period) / log(DUMB_SEMITONE_BASE) + 60.5);
+ entry->note = MID(0, note, 119);
+ // or should we preserve the period?
+ //entry->note = buffer[pos+0] & 0x0F; /* High nibble */
+ //entry->volpan = buffer[pos+1]; /* Low byte */
+ // and what about finetune?
+ }
+
+ if (sample) {+ entry->mask |= IT_ENTRY_INSTRUMENT;
+ entry->instrument = sample;
+ }
+
+ _dumb_it_xm_convert_effect(buffer[pos+2] & 0x0F, buffer[pos+3], entry, 1);
+
+ entry++;
+ }
+ pos += 4;
+ }
+ IT_SET_END_ROW(entry);
+ entry++;
+ }
+
+ return 0;
+}
+
+
+
+static int it_mod_read_sample_header(IT_SAMPLE *sample, DUMBFILE *f, unsigned long fft, int stk)
+{+ int finetune, loop_start, loop_length;
+
+/**
+ 21 22 Chars Sample 1 name. If the name is not a full
+ 22 chars in length, it will be null
+ terminated.
+
+If
+the sample name begins with a '#' character (ASCII $23 (35)) then this is
+assumed not to be an instrument name, and is probably a message.
+*/
+ dumbfile_getnc((char *)sample->name, 22, f);
+ sample->name[22] = 0;
+
+ sample->filename[0] = 0;
+
+ sample->length = dumbfile_mgetw(f) << 1;
+ if (fft == DUMB_ID('F','E','S','T'))+ finetune = (signed char)((-dumbfile_getc(f) & 0x1F) << 3) >> 3;
+ else
+ finetune = (signed char)(dumbfile_getc(f) << 4) >> 4; /* signed nibble */
+/** Each finetune step changes the note 1/8th of a semitone. */
+ sample->global_volume = 64;
+ sample->default_volume = dumbfile_getc(f); // Should we be setting global_volume to this instead?
+ loop_start = dumbfile_mgetw(f);
+ if ( !stk ) loop_start <<= 1;
+ loop_length = dumbfile_mgetw(f) << 1;
+ if ( loop_length > 2 && loop_start + loop_length > sample->length && loop_start / 2 + loop_length <= sample->length )
+ loop_start /= 2;
+ sample->loop_start = loop_start;
+ sample->loop_end = loop_start + loop_length;
+/**
+Once this sample has been played completely from beginning
+to end, if the repeat length (next field) is greater than two bytes it
+will loop back to this position in the sample and continue playing. Once
+it has played for the repeat length, it continues to loop back to the
+repeat start offset. This means the sample continues playing until it is
+told to stop.
+*/
+
+ if (sample->length <= 0) {+ sample->flags = 0;
+ return 0;
+ }
+
+ sample->flags = IT_SAMPLE_EXISTS;
+
+ sample->default_pan = 0;
+ sample->C5_speed = (int)( AMIGA_CLOCK / 214.0 ); //(long)(16726.0*pow(DUMB_PITCH_BASE, finetune*32));
+ sample->finetune = finetune * ((fft == DUMB_ID('F','E','S','T')) ? 16 : 32);+ // the above line might be wrong
+
+ if (sample->loop_end > sample->length)
+ sample->loop_end = sample->length;
+
+ if (sample->loop_end - sample->loop_start > 2)
+ sample->flags |= IT_SAMPLE_LOOP;
+
+ sample->vibrato_speed = 0;
+ sample->vibrato_depth = 0;
+ sample->vibrato_rate = 0;
+ sample->vibrato_waveform = 0; // do we have to set _all_ these?
+ sample->max_resampling_quality = -1;
+
+ return dumbfile_error(f);
+}
+
+
+
+static int it_mod_read_sample_data(IT_SAMPLE *sample, DUMBFILE *f, unsigned long fft)
+{+ long i;
+ long truncated_size;
+
+ /* let's get rid of the sample data coming after the end of the loop */
+ if ((sample->flags & IT_SAMPLE_LOOP) && sample->loop_end < sample->length) {+ truncated_size = sample->length - sample->loop_end;
+ sample->length = sample->loop_end;
+ } else {+ truncated_size = 0;
+ }
+
+ if (sample->length) {+ sample->data = malloc(sample->length);
+
+ if (!sample->data)
+ return -1;
+
+ /* Sample data are stored in "8-bit two's compliment format" (sic). */
+ /*
+ for (i = 0; i < sample->length; i++)
+ ((signed char *)sample->left)[i] = dumbfile_getc(f);
+ */
+ /* F U Olivier Lapicque */
+ if (sample->length >= 5)
+ {+ i = dumbfile_getnc(sample->data, 5, f);
+ if (i == 5)
+ {+ if (!memcmp(sample->data, "ADPCM", 5))
+ {+ if (_dumb_it_read_sample_data_adpcm4(sample, f) < 0)
+ return -1;
+
+ return 0;
+ }
+ else
+ {+ i += dumbfile_getnc(((char *)sample->data) + 5, sample->length - 5, f);
+ }
+ }
+ }
+ else
+ {+ i = dumbfile_getnc(sample->data, sample->length, f);
+ }
+ if (i < sample->length)
+ {+ if (i <= 0)
+ {+ sample->flags = 0;
+ return 0;
+ }
+ sample->length = i;
+ if (sample->loop_end > i) sample->loop_end = i;
+ // holy crap!
+ if (sample->loop_start > i) sample->flags &= ~IT_SAMPLE_LOOP;
+ }
+ else
+ {+ /* skip truncated data */
+ int feh = dumbfile_error(f);
+
+ if (truncated_size) dumbfile_skip(f, truncated_size);
+ // Should we be truncating it?
+
+ if (feh)
+ return -1;
+ }
+
+ if (fft == DUMB_ID('M',0,0,0) || fft == DUMB_ID('8',0,0,0)) {+ int delta = 0;
+ for (i = 0; i < sample->length; i++) {+ delta += ((signed char *)sample->data)[i];
+ ((signed char *)sample->data)[i] = delta;
+ }
+ }
+ }
+
+ return 0;
+}
+
+
+
+#define MOD_FFT_OFFSET (20 + 31*(22+2+1+1+2+2) + 1 + 1 + 128)
+
+static DUMB_IT_SIGDATA *it_mod_load_sigdata(DUMBFILE *f, int restrict_)
+{+ DUMB_IT_SIGDATA *sigdata;
+ int n_channels;
+ int i;
+ unsigned long fft;
+
+ if ( dumbfile_seek(f, MOD_FFT_OFFSET, DFS_SEEK_SET) )
+ return NULL;
+
+ fft = dumbfile_mgetl(f);
+ if (dumbfile_error(f))
+ return NULL;
+
+ if ( dumbfile_seek(f, 0, DFS_SEEK_SET) )
+ return NULL;
+
+ sigdata = malloc(sizeof(*sigdata));
+ if (!sigdata) {+ return NULL;
+ }
+
+ /**
+ 1 20 Chars Title of the song. If the title is not a
+ full 20 chars in length, it will be null-
+ terminated.
+ */
+ if (dumbfile_getnc((char *)sigdata->name, 20, f) < 20) {+ free(sigdata);
+ return NULL;
+ }
+ sigdata->name[20] = 0;
+
+ sigdata->n_samples = 31;
+
+ switch (fft) {+ case DUMB_ID('M','.','K','.'):+ case DUMB_ID('M','!','K','!'):+ case DUMB_ID('M','&','K','!'):+ case DUMB_ID('N','.','T','.'):+ case DUMB_ID('N','S','M','S'):+ case DUMB_ID('F','L','T','4'):+ case DUMB_ID('M',0,0,0):+ case DUMB_ID('8',0,0,0):+ case DUMB_ID('F','E','S','T'):+ n_channels = 4;
+ break;
+ case DUMB_ID('F','L','T','8'):+ n_channels = 0;
+ /* 0 indicates a special case; two four-channel patterns must be
+ * combined into one eight-channel pattern. Pattern indexes must
+ * be halved. Why oh why do they obfuscate so?
+ */
+ /*for (i = 0; i < 128; i++)
+ sigdata->order[i] >>= 1;*/
+ break;
+ case DUMB_ID('C','D','8','1'):+ case DUMB_ID('O','C','T','A'):+ case DUMB_ID('O','K','T','A'):+ n_channels = 8;
+ break;
+ case DUMB_ID('1','6','C','N'):+ n_channels = 16;
+ break;
+ case DUMB_ID('3','2','C','N'):+ n_channels = 32;
+ break;
+ default:
+ /* If we get an illegal tag, assume 4 channels 15 samples. */
+ if ((fft & 0x0000FFFFL) == DUMB_ID(0,0,'C','H')) {+ if (fft >= '1' << 24 && fft < '4' << 24) {+ n_channels = ((fft & 0x00FF0000L) >> 16) - '0';
+ if ((unsigned int)n_channels >= 10) {+ /* Rightmost character wasn't a digit. */
+ n_channels = 4;
+ sigdata->n_samples = 15;
+ } else {+ n_channels += (((fft & 0xFF000000L) >> 24) - '0') * 10;
+ /* MODs should really only go up to 32 channels, but we're lenient. */
+ if ((unsigned int)(n_channels - 1) >= DUMB_IT_N_CHANNELS - 1) {+ /* No channels or too many? Can't be right... */
+ n_channels = 4;
+ sigdata->n_samples = 15;
+ }
+ }
+ } else {+ n_channels = 4;
+ sigdata->n_samples = 15;
+ }
+ } else if ((fft & 0x00FFFFFFL) == DUMB_ID(0,'C','H','N')) {+ n_channels = (fft >> 24) - '0';
+ if ((unsigned int)(n_channels - 1) >= 9) {+ /* Character was '0' or it wasn't a digit */
+ n_channels = 4;
+ sigdata->n_samples = 15;
+ }
+ } else if ((fft & 0xFFFFFF00L) == DUMB_ID('T','D','Z',0)) {+ n_channels = (fft & 0x000000FFL) - '0';
+ if ((unsigned int)(n_channels - 1) >= 9) {+ /* We've been very lenient, given that it should have
+ * been 1, 2 or 3, but this MOD has been very naughty and
+ * must be punished.
+ */
+ n_channels = 4;
+ sigdata->n_samples = 15;
+ }
+ } else {+ n_channels = 4;
+ sigdata->n_samples = 15;
+ fft = 0;
+ }
+ }
+
+ // moo
+ if ( ( restrict_ & 1 ) && sigdata->n_samples == 15 )
+ {+ free(sigdata);
+ return NULL;
+ }
+
+ sigdata->n_pchannels = n_channels ? n_channels : 8; /* special case for 0, see above */
+
+ sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
+ if (!sigdata->sample) {+ free(sigdata);
+ return NULL;
+ }
+
+ sigdata->song_message = NULL;
+ sigdata->order = NULL;
+ sigdata->instrument = NULL;
+ sigdata->pattern = NULL;
+ sigdata->midi = NULL;
+ sigdata->checkpoint = NULL;
+
+ sigdata->n_instruments = 0;
+
+ for (i = 0; i < sigdata->n_samples; i++)
+ sigdata->sample[i].data = NULL;
+
+ for (i = 0; i < sigdata->n_samples; i++) {+ if (it_mod_read_sample_header(&sigdata->sample[i], f, fft, sigdata->n_samples == 15)) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ }
+
+ sigdata->n_orders = dumbfile_getc(f);
+ sigdata->restart_position = dumbfile_getc(f);
+ // what if this is >= 127? what about with Fast Tracker II?
+
+/* if (sigdata->n_orders <= 0 || sigdata->n_orders > 128) { // is this right?+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }*/
+
+ //if (sigdata->restart_position >= sigdata->n_orders)
+ //sigdata->restart_position = 0;
+
+ sigdata->order = malloc(128); /* We may need to scan the extra ones! */
+ if (!sigdata->order) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ if (dumbfile_getnc((char *)sigdata->order, 128, f) < 128) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ if (sigdata->n_orders <= 0 || sigdata->n_orders > 128) { // is this right?+ sigdata->n_orders = 128;
+ //while (sigdata->n_orders > 1 && !sigdata->order[sigdata->n_orders - 1]) sigdata->n_orders--;
+ }
+
+ if ( ! n_channels )
+ for (i = 0; i < 128; i++)
+ sigdata->order[i] >>= 1;
+
+ /* "The old NST format contains only 15 samples (instead of 31). Further
+ * it doesn't contain a file format tag (id). So Pattern data offset is
+ * at 20+15*30+1+1+128."
+ * - Then I shall assume the File Format Tag never exists if there are
+ * only 15 samples. I hope this isn't a faulty assumption...
+ */
+ if (sigdata->n_samples == 31)
+ dumbfile_skip(f, 4);
+
+ sigdata->n_patterns = -1;
+
+ if ( ( restrict_ & 2 ) )
+ {+ unsigned char buffer[5];
+ long sample_number;
+ long total_sample_size;
+ long offset = dumbfile_pos(f);
+ long remain = dumbfile_get_size(f) - offset;
+ if ( dumbfile_error( f ) ||
+ dumbfile_seek( f, 0, SEEK_END ) ) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ sample_number = sigdata->n_samples - 1;
+ total_sample_size = 0;
+ while (dumbfile_pos(f) > offset && sample_number >= 0) {+ if (sigdata->sample[sample_number].flags & IT_SAMPLE_EXISTS) {+ if ( dumbfile_seek(f, -((sigdata->sample[sample_number].length + 1) / 2 + 5 + 16), DFS_SEEK_CUR) ||
+ dumbfile_getnc((char *)buffer, 5, f) < 5 ) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ if ( !memcmp( buffer, "ADPCM", 5 ) ) { /* BAH */+ total_sample_size += (sigdata->sample[sample_number].length + 1) / 2 + 5 + 16;
+ if ( dumbfile_seek(f, -5, DFS_SEEK_CUR) ) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ } else {+ total_sample_size += sigdata->sample[sample_number].length;
+ if ( dumbfile_seek(f, -(sigdata->sample[sample_number].length - ((sigdata->sample[sample_number].length + 1) / 2 + 5 + 16) + 5), DFS_SEEK_CUR) ) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ }
+ }
+ --sample_number;
+ }
+
+ if (remain > total_sample_size) {+ sigdata->n_patterns = ( remain - total_sample_size + 4 ) / ( 256 * sigdata->n_pchannels );
+ if (fft == DUMB_ID('M',0,0,0) || fft == DUMB_ID('8',0,0,0)) {+ remain -= sigdata->n_patterns * 256 * sigdata->n_pchannels;
+ if (dumbfile_skip(f, remain - total_sample_size)) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ }
+ }
+ }
+ else
+ {+ for (i = 0; i < 128; i++)
+ {+ if (sigdata->order[i] > sigdata->n_patterns)
+ sigdata->n_patterns = sigdata->order[i];
+ }
+ sigdata->n_patterns++;
+ }
+
+ if ( sigdata->n_patterns <= 0 ) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ /* May as well try to save a tiny bit of memory. */
+ if (sigdata->n_orders < 128) {+ unsigned char *order = realloc(sigdata->order, sigdata->n_orders);
+ if (order) sigdata->order = order;
+ }
+
+ sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
+ if (!sigdata->pattern) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (i = 0; i < sigdata->n_patterns; i++)
+ sigdata->pattern[i].entry = NULL;
+
+ /* Read in the patterns */
+ {+ unsigned char *buffer = malloc(256 * sigdata->n_pchannels); /* 64 rows * 4 bytes */
+ if (!buffer) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (i = 0; i < sigdata->n_patterns; i++) {+ if (it_mod_read_pattern(&sigdata->pattern[i], f, n_channels, buffer) != 0) {+ free(buffer);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ }
+ free(buffer);
+ }
+
+ /* And finally, the sample data */
+ for (i = 0; i < sigdata->n_samples; i++) {+ if (it_mod_read_sample_data(&sigdata->sample[i], f, fft)) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ }
+
+ /* w00t! */
+ /*if ( n_channels == 4 &&
+ ( sigdata->n_samples == 15 ||
+ ( ( fft & 240 ) != DUMB_ID( 0, 0, 'C', 0 ) &&
+ ( fft & 240 ) != DUMB_ID( 0, 0, 'H', 0 ) &&
+ ( fft & 240 ) != 0 ) ) ) {+ for ( i = 0; i < sigdata->n_samples; ++i ) {+ IT_SAMPLE * sample = &sigdata->sample [i];
+ if ( sample && ( sample->flags & IT_SAMPLE_EXISTS ) ) {+ int n, o;
+ o = sample->length;
+ if ( o > 4 ) o = 4;
+ for ( n = 0; n < o; ++n )
+ ( ( char * ) sample->data ) [n] = 0;
+ }
+ }
+ }*/
+
+ /* Now let's initialise the remaining variables, and we're done! */
+ sigdata->flags = IT_WAS_AN_XM | IT_WAS_A_MOD | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_STEREO;
+
+ sigdata->global_volume = 128;
+ sigdata->mixing_volume = 48;
+ /* We want 50 ticks per second; 50/6 row advances per second;
+ * 50*10=500 row advances per minute; 500/4=125 beats per minute.
+ */
+ sigdata->speed = 6;
+ sigdata->tempo = 125;
+ sigdata->pan_separation = 128;
+
+ memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
+
+ for (i = 0; i < DUMB_IT_N_CHANNELS; i += 4) {+ int sep = 32 * dumb_it_default_panning_separation / 100;
+ sigdata->channel_pan[i+0] = 32 - sep;
+ sigdata->channel_pan[i+1] = 32 + sep;
+ sigdata->channel_pan[i+2] = 32 + sep;
+ sigdata->channel_pan[i+3] = 32 - sep;
+ }
+
+ _dumb_it_fix_invalid_orders(sigdata);
+
+ return sigdata;
+}
+
+
+
+DUH *dumb_read_mod_quick(DUMBFILE *f, int restrict_)
+{+ sigdata_t *sigdata;
+
+ DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
+
+ sigdata = it_mod_load_sigdata(f, restrict_);
+
+ if (!sigdata)
+ return NULL;
+
+ {+ const char *tag[2][2];
+ tag[0][0] = "TITLE";
+ tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
+ tag[1][0] = "FORMAT";
+ tag[1][1] = "MOD";
+ return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
+ }
+}
--- /dev/null
+++ b/src/it/readmod2.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readmod2.c - Function to read a good old- / / \ \
+ * fashioned Amiga module from an | < / \_
+ * open file and do an initial | \/ /\ /
+ * run-through. \_ / > /
+ * | \ / /
+ * Split off from readmod.c by entheh. | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+
+
+
+DUH *dumb_read_mod(DUMBFILE *f, int restrict_)
+{+ DUH *duh = dumb_read_mod_quick(f, restrict_);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/readmtm.c
@@ -1,0 +1,413 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readmtm.c - Code to read a MultiTracker Module / / \ \
+ * from an open file. | < / \_
+ * | \/ /\ /
+ * By Chris Moeller. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+
+size_t strlen_max(const char * ptr, size_t max)
+{+ const char * end, * start;
+ if (ptr==0) return 0;
+ start = ptr;
+ end = ptr + max;
+ while(*ptr && ptr < end) ptr++;
+ return ptr - start;
+}
+
+static int it_mtm_assemble_pattern(IT_PATTERN *pattern, const unsigned char * track, const unsigned short * sequence, int n_rows)
+{+ int n, o, note, sample;
+ const unsigned char * t;
+ IT_ENTRY * entry;
+
+ pattern->n_rows = n_rows;
+ pattern->n_entries = n_rows;
+
+ for (n = 0; n < 32; n++) {+ if (sequence[n]) {+ t = &track[192 * (sequence[n] - 1)];
+ for (o = 0; o < n_rows; o++) {+ if (t[0] || t[1] || t[2]) pattern->n_entries++;
+ t += 3;
+ }
+ }
+ }
+
+ entry = malloc(pattern->n_entries * sizeof(*entry));
+ if (!entry) return -1;
+ pattern->entry = entry;
+
+ for (n = 0; n < n_rows; n++) {+ for (o = 0; o < 32; o++) {+ if (sequence[o]) {+ t = &track[192 * (sequence[o] - 1) + (n * 3)];
+ if (t[0] || t[1] || t[2]) {+ entry->channel = o;
+ entry->mask = 0;
+ note = t[0] >> 2;
+ sample = ((t[0] << 4) | (t[1] >> 4)) & 0x3F;
+
+ if (note) {+ entry->mask |= IT_ENTRY_NOTE;
+ entry->note = note + 24;
+ }
+
+ if (sample) {+ entry->mask |= IT_ENTRY_INSTRUMENT;
+ entry->instrument = sample;
+ }
+
+ _dumb_it_xm_convert_effect(t[1] & 0xF, t[2], entry, 1);
+
+ if (entry->mask) entry++;
+ }
+ }
+ }
+ IT_SET_END_ROW(entry);
+ entry++;
+ }
+
+ pattern->n_entries = entry - pattern->entry;
+
+ return 0;
+}
+
+static int it_mtm_read_sample_header(IT_SAMPLE *sample, DUMBFILE *f)
+{+ int finetune, flags;
+
+ dumbfile_getnc((char *)sample->name, 22, f);
+ sample->name[22] = 0;
+
+ sample->filename[0] = 0;
+
+ sample->length = dumbfile_igetl(f);
+ sample->loop_start = dumbfile_igetl(f);
+ sample->loop_end = dumbfile_igetl(f);
+ finetune = (signed char)(dumbfile_getc(f) << 4) >> 4; /* signed nibble */
+ sample->global_volume = 64;
+ sample->default_volume = dumbfile_getc(f);
+
+ flags = dumbfile_getc(f);
+
+ if (sample->length <= 0) {+ sample->flags = 0;
+ return 0;
+ }
+
+ sample->flags = IT_SAMPLE_EXISTS;
+
+ if (flags & 1) {+ sample->flags |= IT_SAMPLE_16BIT;
+ sample->length >>= 1;
+ sample->loop_start >>= 1;
+ sample->loop_end >>= 1;
+ }
+
+ sample->default_pan = 0;
+ sample->C5_speed = (int)( AMIGA_CLOCK / 214.0 );//(long)(16726.0*pow(DUMB_PITCH_BASE, finetune*32));
+ sample->finetune = finetune * 32;
+ // the above line might be wrong
+
+ if (sample->loop_end > sample->length)
+ sample->loop_end = sample->length;
+
+ if (sample->loop_end - sample->loop_start > 2)
+ sample->flags |= IT_SAMPLE_LOOP;
+
+ sample->vibrato_speed = 0;
+ sample->vibrato_depth = 0;
+ sample->vibrato_rate = 0;
+ sample->vibrato_waveform = 0; // do we have to set _all_ these?
+ sample->max_resampling_quality = -1;
+
+ return dumbfile_error(f);
+}
+
+static int it_mtm_read_sample_data(IT_SAMPLE *sample, DUMBFILE *f)
+{+ long i;
+ long truncated_size;
+
+ /* let's get rid of the sample data coming after the end of the loop */
+ if ((sample->flags & IT_SAMPLE_LOOP) && sample->loop_end < sample->length) {+ truncated_size = sample->length - sample->loop_end;
+ sample->length = sample->loop_end;
+ } else {+ truncated_size = 0;
+ }
+
+ sample->data = malloc(sample->length);
+
+ if (!sample->data)
+ return -1;
+
+ dumbfile_getnc((char *)sample->data, sample->length, f);
+ dumbfile_skip(f, truncated_size);
+
+ if (dumbfile_error(f))
+ return -1;
+
+ for (i = 0; i < sample->length; i++)
+ ((signed char *)sample->data)[i] ^= 0x80;
+
+ return 0;
+}
+
+static DUMB_IT_SIGDATA *it_mtm_load_sigdata(DUMBFILE *f, int * version)
+{+ DUMB_IT_SIGDATA *sigdata;
+
+ int n, o, n_tracks, l_comment, n_rows, n_channels;
+
+ unsigned char * track;
+
+ unsigned short * sequence;
+
+ char * comment;
+
+ if (dumbfile_getc(f) != 'M' ||
+ dumbfile_getc(f) != 'T' ||
+ dumbfile_getc(f) != 'M') goto error;
+
+ *version = dumbfile_getc(f);
+
+ sigdata = malloc(sizeof(*sigdata));
+ if (!sigdata) goto error;
+
+ dumbfile_getnc((char *)sigdata->name, 20, f);
+ sigdata->name[20] = 0;
+
+ n_tracks = dumbfile_igetw(f);
+ sigdata->n_patterns = dumbfile_getc(f) + 1;
+ sigdata->n_orders = dumbfile_getc(f) + 1;
+ l_comment = dumbfile_igetw(f);
+ sigdata->n_samples = dumbfile_getc(f);
+ //if (dumbfile_getc(f)) goto error_sd;
+ dumbfile_getc(f);
+ n_rows = dumbfile_getc(f);
+ n_channels = dumbfile_getc(f);
+
+ if (dumbfile_error(f) ||
+ (n_tracks <= 0) ||
+ (sigdata->n_samples <= 0) ||
+ (n_rows <= 0 || n_rows > 64) ||
+ (n_channels <= 0 || n_channels > 32)) goto error_sd;
+
+ memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
+
+ if (dumbfile_getnc((char *)sigdata->channel_pan, 32, f) < 32) goto error_sd;
+
+ for (n = 0; n < 32; n++) {+ if (sigdata->channel_pan[n] <= 15) {+ sigdata->channel_pan[n] -= (sigdata->channel_pan[n] & 8) >> 3;
+ sigdata->channel_pan[n] = (sigdata->channel_pan[n] * 32) / 7;
+ } else {+ sigdata->channel_volume[n] = 0;
+ sigdata->channel_pan[n] = 7;
+ }
+ }
+
+ for (n = 32; n < DUMB_IT_N_CHANNELS; n += 4) {+ int sep = 32 * dumb_it_default_panning_separation / 100;
+ sigdata->channel_pan[n ] = 32 - sep;
+ sigdata->channel_pan[n+1] = 32 + sep;
+ sigdata->channel_pan[n+2] = 32 + sep;
+ sigdata->channel_pan[n+3] = 32 - sep;
+ }
+
+ sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
+ if (!sigdata->sample) goto error_sd;
+
+ sigdata->flags = IT_WAS_AN_XM | IT_WAS_A_MOD | IT_STEREO | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX;
+
+ sigdata->global_volume = 128;
+ sigdata->mixing_volume = 48;
+ sigdata->speed = 6;
+ sigdata->tempo = 125;
+ sigdata->pan_separation = 128;
+
+ sigdata->song_message = NULL;
+ sigdata->order = NULL;
+ sigdata->instrument = NULL;
+ sigdata->pattern = NULL;
+ sigdata->midi = NULL;
+ sigdata->checkpoint = NULL;
+
+ sigdata->n_instruments = 0;
+
+ sigdata->restart_position = 0;
+ sigdata->n_pchannels = n_channels;
+
+ for (n = 0; n < sigdata->n_samples; n++)
+ sigdata->sample[n].data = NULL;
+
+ for (n = 0; n < sigdata->n_samples; n++) {+ if (it_mtm_read_sample_header(&sigdata->sample[n], f)) goto error_usd;
+ }
+
+ sigdata->order = malloc(sigdata->n_orders);
+ if (!sigdata->order) goto error_usd;
+
+ if (dumbfile_getnc((char *)sigdata->order, sigdata->n_orders, f) < sigdata->n_orders) goto error_usd;
+ if (sigdata->n_orders < 128)
+ if (dumbfile_skip(f, 128 - sigdata->n_orders)) goto error_usd;
+
+ track = malloc(192 * n_tracks);
+ if (!track) goto error_usd;
+
+ if (dumbfile_getnc((char *)track, 192 * n_tracks, f) < 192 * n_tracks) goto error_ft;
+
+ sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
+ if (!sigdata->pattern) goto error_ft;
+ for (n = 0; n < sigdata->n_patterns; n++)
+ sigdata->pattern[n].entry = NULL;
+
+ sequence = malloc(sigdata->n_patterns * 32 * sizeof(*sequence));
+ if (!sequence) goto error_ft;
+
+ for (n = 0; n < sigdata->n_patterns; n++) {+ for (o = 0; o < 32; o++) {+ sequence[(n * 32) + o] = dumbfile_igetw(f);
+ if (sequence[(n * 32) + o] > n_tracks)
+ {+ //goto error_fs;
+ // illegal track number, silence instead of rejecting the file
+ sequence[(n * 32) + o] = 0;
+ }
+ }
+ }
+
+ for (n = 0; n < sigdata->n_patterns; n++) {+ if (it_mtm_assemble_pattern(&sigdata->pattern[n], track, &sequence[n * 32], n_rows)) goto error_fs;
+ }
+
+ if (l_comment) {+ comment = malloc(l_comment);
+ if (!comment) goto error_fs;
+ if (dumbfile_getnc(comment, l_comment, f) < l_comment) goto error_fc;
+
+ /* Time for annoying "logic", yes. We want each line which has text,
+ * and each blank line in between all the valid lines.
+ */
+
+ /* Find last actual line. */
+ for (o = -1, n = 0; n < l_comment; n += 40) {+ if (comment[n]) o = n;
+ }
+
+ if (o >= 0) {+
+ int l, m;
+
+ for (l = 0, n = 0; n <= o; n += 40) {+ l += strlen_max(&comment[n], 40) + 2;
+ }
+
+ l -= 1;
+
+ sigdata->song_message = malloc(l);
+ if (!sigdata->song_message) goto error_fc;
+
+ for (m = 0, n = 0; n <= o; n += 40) {+ int p = strlen_max(&comment[n], 40);
+ if (p) {+ memcpy(sigdata->song_message + m, &comment[n], p);
+ m += p;
+ }
+ if (l - m > 1) {+ sigdata->song_message[m++] = 13;
+ sigdata->song_message[m++] = 10;
+ }
+ }
+
+ sigdata->song_message[m] = 0;
+ }
+
+ free(comment);
+ }
+
+ for (n = 0; n < sigdata->n_samples; n++) {+ if (it_mtm_read_sample_data(&sigdata->sample[n], f)) goto error_fs;
+ }
+
+ _dumb_it_fix_invalid_orders(sigdata);
+
+ free(sequence);
+ free(track);
+
+ return sigdata;
+
+error_fc:
+ free(comment);
+error_fs:
+ free(sequence);
+error_ft:
+ free(track);
+error_usd:
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+
+error_sd:
+ free(sigdata);
+error:
+ return NULL;
+}
+
+static char hexdigit(int in)
+{+ if (in < 10) return in + '0';
+ else return in + 'A' - 10;
+}
+
+DUH *dumb_read_mtm_quick(DUMBFILE *f)
+{+ sigdata_t *sigdata;
+ int ver;
+
+ DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
+
+ sigdata = it_mtm_load_sigdata(f, &ver);
+
+ if (!sigdata)
+ return NULL;
+
+ {+ char version[16];
+ const char *tag[2][2];
+ tag[0][0] = "TITLE";
+ tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
+ tag[1][0] = "FORMAT";
+ version[0] = 'M';
+ version[1] = 'T';
+ version[2] = 'M';
+ version[3] = ' ';
+ version[4] = 'v';
+ version[5] = hexdigit(ver >> 4);
+ version[6] = '.';
+ version[7] = hexdigit(ver & 15);
+ version[8] = 0;
+ tag[1][1] = (const char *) &version;
+ return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
+ }
+}
--- /dev/null
+++ b/src/it/readokt.c
@@ -1,0 +1,558 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readokt.c - Code to read an Oktalyzer module / / \ \
+ * from an open file. | < / \_
+ * | \/ /\ /
+ * By Chris Moeller. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+static int it_okt_read_pattern(IT_PATTERN *pattern, const unsigned char *data, int length, int n_channels)
+{+ int pos;
+ int channel;
+ int row;
+ int n_rows;
+ IT_ENTRY *entry;
+
+ if (length < 2) return -1;
+
+ n_rows = (data[0] << 8) | data[1];
+ if (!n_rows) n_rows = 64;
+
+ if (length < 2 + (n_rows * n_channels * 4)) return -1;
+
+ pattern->n_rows = n_rows;
+
+ /* compute number of entries */
+ pattern->n_entries = n_rows; /* Account for the row end markers */
+ pos = 2;
+ for (row = 0; row < pattern->n_rows; row++) {+ for (channel = 0; channel < n_channels; channel++) {+ if (data[pos+0] | data[pos+2])
+ pattern->n_entries++;
+ pos += 4;
+ }
+ }
+
+ pattern->entry = (IT_ENTRY *) malloc(pattern->n_entries * sizeof(*pattern->entry));
+ if (!pattern->entry)
+ return -1;
+
+ entry = pattern->entry;
+ pos = 2;
+ for (row = 0; row < n_rows; row++) {+ for (channel = 0; channel < n_channels; channel++) {+ if (data[pos+0] | data[pos+2]) {+ entry->channel = channel;
+ entry->mask = 0;
+
+ if (data[pos+0] > 0 && data[pos+0] <= 36) {+ entry->mask |= IT_ENTRY_NOTE | IT_ENTRY_INSTRUMENT;
+
+ entry->note = data[pos+0] + 35;
+ entry->instrument = data[pos+1] + 1;
+ }
+
+ entry->effect = 0;
+ entry->effectvalue = data[pos+3];
+
+ switch (data[pos+2]) {+ case 2: if (data[pos+3]) entry->effect = IT_PORTAMENTO_DOWN; break; // XXX code calls this rs_portu, but it's adding to the period, which decreases the pitch
+ case 13: if (data[pos+3]) entry->effect = IT_OKT_NOTE_SLIDE_DOWN; break;
+ case 21: if (data[pos+3]) entry->effect = IT_OKT_NOTE_SLIDE_DOWN_ROW; break;
+
+ case 1: if (data[pos+3]) entry->effect = IT_PORTAMENTO_UP; break; // XXX same deal here, increasing the pitch
+ case 17: if (data[pos+3]) entry->effect = IT_OKT_NOTE_SLIDE_UP; break;
+ case 30: if (data[pos+3]) entry->effect = IT_OKT_NOTE_SLIDE_UP_ROW; break;
+
+ case 10: if (data[pos+3]) entry->effect = IT_OKT_ARPEGGIO_3; break;
+ case 11: if (data[pos+3]) entry->effect = IT_OKT_ARPEGGIO_4; break;
+ case 12: if (data[pos+3]) entry->effect = IT_OKT_ARPEGGIO_5; break;
+
+ case 15: entry->effect = IT_S; entry->effectvalue = EFFECT_VALUE(IT_S_SET_FILTER, data[pos+3] & 0x0F); break;
+
+ case 25: entry->effect = IT_JUMP_TO_ORDER; break;
+
+ case 27: entry->note = IT_NOTE_OFF; entry->mask |= IT_ENTRY_NOTE; break;
+
+ case 28: entry->effect = IT_SET_SPEED; break;
+
+ case 31:
+ if ( data[pos+3] <= 0x40 ) entry->effect = IT_SET_CHANNEL_VOLUME;
+ else if ( data[pos+3] <= 0x50 ) { entry->effect = IT_OKT_VOLUME_SLIDE_DOWN; entry->effectvalue = data[pos+3] - 0x40; }+ else if ( data[pos+3] <= 0x60 ) { entry->effect = IT_OKT_VOLUME_SLIDE_UP; entry->effectvalue = data[pos+3] - 0x50; }+ else if ( data[pos+3] <= 0x70 ) { entry->effect = IT_OKT_VOLUME_SLIDE_DOWN; entry->effectvalue = data[pos+3] - 0x50; }+ else if ( data[pos+3] <= 0x80 ) { entry->effect = IT_OKT_VOLUME_SLIDE_UP; entry->effectvalue = data[pos+3] - 0x60; }+ break;
+ }
+
+ if ( entry->effect ) entry->mask |= IT_ENTRY_EFFECT;
+
+ entry++;
+ }
+ pos += 4;
+ }
+ IT_SET_END_ROW(entry);
+ entry++;
+ }
+
+ return 0;
+}
+
+
+
+static void it_okt_read_sample_header(IT_SAMPLE *sample, const unsigned char * data)
+{+ int loop_start, loop_length;
+
+ memcpy(sample->name, data, 20);
+ sample->name[20] = 0;
+
+ sample->filename[0] = 0;
+
+ sample->length = (data[20] << 24) | (data[21] << 16) | (data[22] << 8) | data[23];
+ sample->global_volume = 64;
+ sample->default_volume = data[29];
+ loop_start = ((data[24] << 8) | data[25]) << 1;
+ loop_length = ((data[26] << 8) | data[27]) << 1;
+ sample->sus_loop_start = loop_start;
+ sample->sus_loop_end = loop_start + loop_length;
+
+ if (sample->length <= 0) {+ sample->flags = 0;
+ return;
+ }
+
+ sample->flags = IT_SAMPLE_EXISTS;
+
+ sample->default_pan = 0;
+ sample->C5_speed = (int)( AMIGA_CLOCK / 214.0 ); //(long)(16726.0*pow(DUMB_PITCH_BASE, finetune*32));
+ sample->finetune = 0;
+
+ if (sample->sus_loop_end > sample->length)
+ sample->sus_loop_end = sample->length;
+
+ if (loop_length > 2)
+ sample->flags |= IT_SAMPLE_SUS_LOOP;
+
+ sample->vibrato_speed = 0;
+ sample->vibrato_depth = 0;
+ sample->vibrato_rate = 0;
+ sample->vibrato_waveform = 0; // do we have to set _all_ these?
+ sample->max_resampling_quality = -1;
+}
+
+
+
+static int it_okt_read_sample_data(IT_SAMPLE *sample, const char * data, int length)
+{+ if (length && sample->length) {+ if (length < sample->length) {+ sample->length = length;
+ if (length < sample->sus_loop_end) sample->sus_loop_end = length;
+ }
+
+ sample->data = malloc(length);
+
+ if (!sample->data)
+ return -1;
+
+ memcpy(sample->data, data, length);
+ }
+
+ return 0;
+}
+
+
+
+typedef struct IFF_CHUNK IFF_CHUNK;
+typedef struct IFF_CHUNKED IFF_CHUNKED;
+
+struct IFF_CHUNK
+{+ unsigned type;
+ unsigned char * data;
+ unsigned size;
+};
+
+struct IFF_CHUNKED
+{+ unsigned chunk_count;
+ IFF_CHUNK * chunks;
+};
+
+
+
+static IFF_CHUNKED *dumbfile_read_okt(DUMBFILE *f)
+{+ IFF_CHUNKED *mod = (IFF_CHUNKED *) malloc(sizeof(*mod));
+ if (!mod) return NULL;
+
+ mod->chunk_count = 0;
+ mod->chunks = 0;
+
+ for (;;)
+ {+ long bytes_read;
+ IFF_CHUNK * chunk = ( IFF_CHUNK * ) realloc( mod->chunks, ( mod->chunk_count + 1 ) * sizeof( IFF_CHUNK ) );
+ if ( !chunk )
+ {+ if ( mod->chunks ) free( mod->chunks );
+ free( mod );
+ return NULL;
+ }
+ mod->chunks = chunk;
+ chunk += mod->chunk_count;
+
+ bytes_read = dumbfile_mgetl( f );
+ if ( bytes_read < 0 ) break;
+
+ chunk->type = bytes_read;
+ chunk->size = dumbfile_mgetl( f );
+
+ if ( dumbfile_error( f ) ) break;
+
+ chunk->data = (unsigned char *) malloc( chunk->size );
+ if ( !chunk->data )
+ {+ free( mod->chunks );
+ free( mod );
+ return NULL;
+ }
+
+ bytes_read = dumbfile_getnc( ( char * ) chunk->data, chunk->size, f );
+ if ( bytes_read < chunk->size )
+ {+ if ( bytes_read <= 0 ) {+ free( chunk->data );
+ break;
+ } else {+ chunk->size = bytes_read;
+ mod->chunk_count++;
+ break;
+ }
+ }
+
+ mod->chunk_count++;
+ }
+
+ if ( !mod->chunk_count ) {+ if ( mod->chunks ) free(mod->chunks);
+ free(mod);
+ mod = NULL;
+ }
+
+ return mod;
+}
+
+void free_okt(IFF_CHUNKED * mod)
+{+ unsigned i;
+ if (mod)
+ {+ if (mod->chunks)
+ {+ for (i = 0; i < mod->chunk_count; i++)
+ {+ if (mod->chunks[i].data) free(mod->chunks[i].data);
+ }
+ free(mod->chunks);
+ }
+ free(mod);
+ }
+}
+
+const IFF_CHUNK * get_chunk_by_type(IFF_CHUNKED * mod, unsigned type, unsigned offset)
+{+ unsigned i;
+ if (mod)
+ {+ if (mod->chunks)
+ {+ for (i = 0; i < mod->chunk_count; i++)
+ {+ if (mod->chunks[i].type == type)
+ {+ if (!offset) return &mod->chunks[i];
+ else offset--;
+ }
+ }
+ }
+ }
+ return NULL;
+}
+
+unsigned get_chunk_count(IFF_CHUNKED *mod, unsigned type)
+{+ unsigned i, count = 0;
+ if (mod)
+ {+ if (mod->chunks)
+ {+ for (i = 0; i < mod->chunk_count; i++)
+ {+ if (mod->chunks[i].type == type) count++;
+ }
+ }
+ }
+ return count;
+}
+
+
+static DUMB_IT_SIGDATA *it_okt_load_sigdata(DUMBFILE *f)
+{+ DUMB_IT_SIGDATA *sigdata;
+ int n_channels;
+ int i, j, k, l;
+ IFF_CHUNKED *mod;
+ const IFF_CHUNK *chunk;
+
+ char signature[8];
+
+ if (dumbfile_getnc(signature, 8, f) < 8 ||
+ memcmp(signature, "OKTASONG", 8)) {+ return NULL;
+ }
+
+ mod = dumbfile_read_okt(f);
+ if (!mod)
+ return NULL;
+
+ sigdata = (DUMB_IT_SIGDATA *) malloc(sizeof(*sigdata));
+ if (!sigdata) {+ free_okt(mod);
+ return NULL;
+ }
+
+ sigdata->name[0] = 0;
+
+ chunk = get_chunk_by_type(mod, DUMB_ID('S','P','E','E'), 0);+ if (!chunk || chunk->size < 2) {+ free(sigdata);
+ free_okt(mod);
+ return NULL;
+ }
+
+ sigdata->speed = (chunk->data[0] << 8) | chunk->data[1];
+
+ chunk = get_chunk_by_type(mod, DUMB_ID('S','A','M','P'), 0);+ if (!chunk || chunk->size < 32) {+ free(sigdata);
+ free_okt(mod);
+ return NULL;
+ }
+
+ sigdata->n_samples = chunk->size / 32;
+
+ chunk = get_chunk_by_type(mod, DUMB_ID('C','M','O','D'), 0);+ if (!chunk || chunk->size < 8) {+ free(sigdata);
+ free_okt(mod);
+ return NULL;
+ }
+
+ n_channels = 0;
+
+ for (i = 0; i < 4; i++) {+ j = (chunk->data[i * 2] << 8) | chunk->data[i * 2 + 1];
+ if (!j) n_channels++;
+ else if (j == 1) n_channels += 2;
+ }
+
+ if (!n_channels) {+ free(sigdata);
+ free_okt(mod);
+ return NULL;
+ }
+
+ sigdata->n_pchannels = n_channels;
+
+ sigdata->sample = (IT_SAMPLE *) malloc(sigdata->n_samples * sizeof(*sigdata->sample));
+ if (!sigdata->sample) {+ free(sigdata);
+ free_okt(mod);
+ return NULL;
+ }
+
+ sigdata->song_message = NULL;
+ sigdata->order = NULL;
+ sigdata->instrument = NULL;
+ sigdata->pattern = NULL;
+ sigdata->midi = NULL;
+ sigdata->checkpoint = NULL;
+
+ sigdata->n_instruments = 0;
+
+ for (i = 0; i < sigdata->n_samples; i++)
+ sigdata->sample[i].data = NULL;
+
+ chunk = get_chunk_by_type(mod, DUMB_ID('S','A','M','P'), 0);+
+ for (i = 0; i < sigdata->n_samples; i++) {+ it_okt_read_sample_header(&sigdata->sample[i], chunk->data + 32 * i);
+ }
+
+ sigdata->restart_position = 0;
+
+ chunk = get_chunk_by_type(mod, DUMB_ID('P','L','E','N'), 0);+ if (!chunk || chunk->size < 2) {+ _dumb_it_unload_sigdata(sigdata);
+ free_okt(mod);
+ return NULL;
+ }
+
+ sigdata->n_orders = (chunk->data[0] << 8) | chunk->data[1];
+ // what if this is > 128?
+
+ if (sigdata->n_orders <= 0 || sigdata->n_orders > 128) {+ _dumb_it_unload_sigdata(sigdata);
+ free_okt(mod);
+ return NULL;
+ }
+
+ chunk = get_chunk_by_type(mod, DUMB_ID('P','A','T','T'), 0);+ if (!chunk || chunk->size < (unsigned)sigdata->n_orders) {+ _dumb_it_unload_sigdata(sigdata);
+ free_okt(mod);
+ return NULL;
+ }
+
+ sigdata->order = (unsigned char *) malloc(sigdata->n_orders);
+ if (!sigdata->order) {+ _dumb_it_unload_sigdata(sigdata);
+ free_okt(mod);
+ return NULL;
+ }
+
+ memcpy(sigdata->order, chunk->data, sigdata->n_orders);
+
+ /* Work out how many patterns there are. */
+ chunk = get_chunk_by_type(mod, DUMB_ID('S','L','E','N'), 0);+ if (!chunk || chunk->size < 2) {+ _dumb_it_unload_sigdata(sigdata);
+ free_okt(mod);
+ return NULL;
+ }
+
+ sigdata->n_patterns = (chunk->data[0] << 8) | chunk->data[1];
+
+ j = get_chunk_count(mod, DUMB_ID('P','B','O','D'));+ if (sigdata->n_patterns > j) sigdata->n_patterns = j;
+
+ if (!sigdata->n_patterns) {+ _dumb_it_unload_sigdata(sigdata);
+ free_okt(mod);
+ return NULL;
+ }
+
+ sigdata->pattern = (IT_PATTERN *) malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
+ if (!sigdata->pattern) {+ _dumb_it_unload_sigdata(sigdata);
+ free_okt(mod);
+ return NULL;
+ }
+ for (i = 0; i < sigdata->n_patterns; i++)
+ sigdata->pattern[i].entry = NULL;
+
+ /* Read in the patterns */
+ for (i = 0; i < sigdata->n_patterns; i++) {+ chunk = get_chunk_by_type(mod, DUMB_ID('P','B','O','D'), i);+ if (it_okt_read_pattern(&sigdata->pattern[i], chunk->data, chunk->size, n_channels) != 0) {+ _dumb_it_unload_sigdata(sigdata);
+ free_okt(mod);
+ return NULL;
+ }
+ }
+
+ /* And finally, the sample data */
+ k = get_chunk_count(mod, DUMB_ID('S','B','O','D'));+ for (i = 0, j = 0; i < sigdata->n_samples && j < k; i++) {+ if (sigdata->sample[i].flags & IT_SAMPLE_EXISTS) {+ chunk = get_chunk_by_type(mod, DUMB_ID('S','B','O','D'), j);+ if (it_okt_read_sample_data(&sigdata->sample[i], (const char *)chunk->data, chunk->size)) {+ _dumb_it_unload_sigdata(sigdata);
+ free_okt(mod);
+ return NULL;
+ }
+ j++;
+ }
+ }
+ for (; i < sigdata->n_samples; i++) {+ sigdata->sample[i].flags = 0;
+ }
+
+ chunk = get_chunk_by_type(mod, DUMB_ID('C','M','O','D'), 0);+
+ for (i = 0, j = 0; i < n_channels && j < 4; j++) {+ k = (chunk->data[j * 2] << 8) | chunk->data[j * 2 + 1];
+ l = (j == 1 || j == 2) ? 48 : 16;
+ if (k == 0) {+ sigdata->channel_pan[i++] = l;
+ }
+ else if (k == 1) {+ sigdata->channel_pan[i++] = l;
+ sigdata->channel_pan[i++] = l;
+ }
+ }
+
+ free_okt(mod);
+
+ /* Now let's initialise the remaining variables, and we're done! */
+ sigdata->flags = IT_WAS_AN_OKT | IT_WAS_AN_XM | IT_WAS_A_MOD | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_STEREO;
+
+ sigdata->global_volume = 128;
+ sigdata->mixing_volume = 48;
+ /* We want 50 ticks per second; 50/6 row advances per second;
+ * 50*10=500 row advances per minute; 500/4=125 beats per minute.
+ */
+ sigdata->tempo = 125;
+ sigdata->pan_separation = 128;
+
+ memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
+ memset(sigdata->channel_pan + n_channels, 32, DUMB_IT_N_CHANNELS - n_channels);
+
+ _dumb_it_fix_invalid_orders(sigdata);
+
+ return sigdata;
+}
+
+
+
+DUH *dumb_read_okt_quick(DUMBFILE *f)
+{+ sigdata_t *sigdata;
+
+ DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
+
+ sigdata = it_okt_load_sigdata(f);
+
+ if (!sigdata)
+ return NULL;
+
+ {+ const char *tag[1][2];
+ tag[0][0] = "FORMAT";
+ tag[0][1] = "Oktalyzer";
+ return make_duh(-1, 1, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
+ }
+}
--- /dev/null
+++ b/src/it/readokt2.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readokt2.c - Function to read an Oktalyzer / / \ \
+ * module from an open file and do | < / \_
+ * an initial run-through. | \/ /\ /
+ * \_ / > /
+ * | \ / /
+ * By Chris Moeller. | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+
+
+
+DUH *dumb_read_okt(DUMBFILE *f)
+{+ DUH *duh = dumb_read_okt_quick(f);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/readoldpsm.c
@@ -1,0 +1,689 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readpsm.c - Code to read an old Protracker / / \ \
+ * Studio module from an open file. | < / \_
+ * | \/ /\ /
+ * By Chris Moeller. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+
+static int psm_sample_compare(const void *e1, const void *e2)
+{+ const unsigned char * pa = e1;
+ const unsigned char * pb = e2;
+ int a = pa[37] | (pa[38] << 8) | (pa[39] << 16) | (pa[40] << 24);
+ int b = pb[37] | (pb[38] << 8) | (pb[39] << 16) | (pb[40] << 24);
+ return a - b;
+}
+
+static int it_old_psm_read_samples(IT_SAMPLE ** sample, DUMBFILE * f, int * num)
+{+ int n, o, count = *num, true_num, snum, offset, flags, finetune, delta;
+
+ unsigned char * buffer;
+ const unsigned char * sdata;
+ long sample_bytes;
+
+ buffer = malloc(count * 64);
+ if (!buffer) goto error;
+
+ if (dumbfile_getnc((char *)buffer, count * 64, f) < count * 64) goto error_fb;
+
+ true_num = 0;
+
+ for (n = 0; n < count; n++) {+ snum = buffer[(n * 64) + 45] | (buffer[(n * 64) + 46] << 8);
+ if ((snum < 1) || (snum > 255)) goto error_fb;
+ if (true_num < snum) true_num = snum;
+ }
+
+ if (true_num > count) {+ IT_SAMPLE * meh = realloc(*sample, true_num * sizeof(*meh));
+ if (!meh) goto error_fb;
+ for (n = count; n < true_num; n++) {+ meh[n].data = NULL;
+ }
+ *sample = meh;
+ *num = true_num;
+ }
+
+ qsort(buffer, count, 64, &psm_sample_compare);
+
+ for (n = 0; n < true_num; n++) {+ (*sample)[n].flags = 0;
+ }
+
+ for (n = 0; n < count; n++) {+ IT_SAMPLE * s;
+ snum = buffer[(n * 64) + 45] | (buffer[(n * 64) + 46] << 8);
+ s = &((*sample)[snum - 1]);
+ memcpy(s->filename, buffer + (n * 64), 13);
+ s->filename[13] = 0;
+ memcpy(s->name, buffer + (n * 64) + 13, 24);
+ s->name[24] = 0;
+ offset = buffer[(n * 64) + 37] | (buffer[(n * 64) + 38] << 8) |
+ (buffer[(n * 64) + 39] << 16) | (buffer[(n * 64) + 40] << 24);
+ flags = buffer[(n * 64) + 47];
+ s->length = buffer[(n * 64) + 48] | (buffer[(n * 64) + 49] << 8) |
+ (buffer[(n * 64) + 50] << 16) | (buffer[(n * 64) + 51] << 24);
+ s->loop_start = buffer[(n * 64) + 52] | (buffer[(n * 64) + 53] << 8) |
+ (buffer[(n * 64) + 54] << 16) | (buffer[(n * 64) + 55] << 24);
+ s->loop_end = buffer[(n * 64) + 56] | (buffer[(n * 64) + 57] << 8) |
+ (buffer[(n * 64) + 58] << 16) | (buffer[(n * 64) + 59] << 24);
+
+ if (s->length <= 0) continue;
+
+ finetune = buffer[(n * 64) + 60];
+ s->default_volume = buffer[(n * 64) + 61];
+ s->C5_speed = buffer[(n * 64) + 62] | (buffer[(n * 64) + 63] << 8);
+ if (finetune & 15) {+ finetune &= 15;
+ if (finetune >= 8) finetune -= 16;
+ //s->C5_speed = (long)((double)s->C5_speed * pow(DUMB_PITCH_BASE, finetune*32));
+ s->finetune = finetune * 32;
+ }
+ else s->finetune = 0;
+
+ s->flags |= IT_SAMPLE_EXISTS;
+ if (flags & 0x41) {+ s->flags &= ~IT_SAMPLE_EXISTS;
+ continue;
+ }
+ if (flags & 0x20) s->flags |= IT_SAMPLE_PINGPONG_LOOP;
+ if (flags & 4) s->flags |= IT_SAMPLE_16BIT;
+
+ if (flags & 0x80) {+ s->flags |= IT_SAMPLE_LOOP;
+ if ((unsigned int)s->loop_end > (unsigned int)s->length)
+ s->loop_end = s->length;
+ else if ((unsigned int)s->loop_start >= (unsigned int)s->loop_end)
+ s->flags &= ~IT_SAMPLE_LOOP;
+ else
+ s->length = s->loop_end;
+ }
+
+ s->global_volume = 64;
+
+ s->vibrato_speed = 0;
+ s->vibrato_depth = 0;
+ s->vibrato_rate = 0;
+ s->vibrato_waveform = IT_VIBRATO_SINE;
+ s->max_resampling_quality = -1;
+
+ sample_bytes = s->length * ((flags & 4) ? 2 : 1);
+ s->data = malloc(sample_bytes);
+ if (!s->data) goto error_fb;
+
+ if (dumbfile_seek(f, offset, DFS_SEEK_SET) || dumbfile_getnc(s->data, sample_bytes, f) < sample_bytes) goto error_fb;
+ sdata = ( const unsigned char * ) s->data;
+
+ if (flags & 0x10) {+ if (flags & 8) {+ if (flags & 4) {+ for (o = 0; o < s->length; o++)
+ ((short *)s->data)[o] = (sdata[o * 2] | (sdata[(o * 2) + 1] << 8)) ^ 0x8000;
+ } else {+ for (o = 0; o < s->length; o++)
+ ((signed char *)s->data)[o] = sdata[o] ^ 0x80;
+ }
+ } else {+ if (flags & 4) {+ for (o = 0; o < s->length; o++)
+ ((short *)s->data)[o] = sdata[o * 2] | (sdata[(o * 2) + 1] << 8);
+ } else {+ memcpy(s->data, sdata, s->length);
+ }
+ }
+ } else {+ delta = 0;
+ if (flags & 8) {+ /* unsigned delta? mehhh, does anything even use this? */
+ if (flags & 4) {+ for (o = 0; o < s->length; o++) {+ delta += (short)(sdata[o * 2] | (sdata[(o * 2) + 1] << 8));
+ ((short *)s->data)[o] = delta ^ 0x8000;
+ }
+ } else {+ for (o = 0; o < s->length; o++) {+ delta += (signed char)sdata[o];
+ ((signed char *)s->data)[o] = delta ^ 0x80;
+ }
+ }
+ } else {+ if (flags & 4) {+ for (o = 0; o < s->length; o++) {+ delta += (signed short)(sdata[o * 2] | (sdata[(o * 2) + 1] << 8));
+ ((signed short *)s->data)[o] = delta;
+ }
+ } else {+ for (o = 0; o < s->length; o++) {+ delta += (signed char)sdata[o];
+ ((signed char *)s->data)[o] = delta;
+ }
+ }
+ }
+ }
+ }
+
+ free(buffer);
+
+ return 0;
+
+error_fb:
+ free(buffer);
+error:
+ return -1;
+}
+
+static int it_old_psm_read_patterns(IT_PATTERN * pattern, DUMBFILE * f, int num, int size, int pchans)
+{+ int n, offset, psize, rows, chans, row, flags, channel;
+
+ unsigned char * buffer, * ptr, * end;
+
+ IT_ENTRY * entry;
+
+ buffer = malloc(size);
+ if (!buffer) goto error;
+
+ if (dumbfile_getnc((char *)buffer, size, f) < size) goto error_fb;
+
+ offset = 0;
+
+ for (n = 0; n < num; n++) {+ IT_PATTERN * p = &pattern[n];
+
+ if (offset >= size) goto error_fb;
+
+ ptr = buffer + offset;
+ psize = ptr[0] | (ptr[1] << 8);
+ rows = ptr[2];
+ chans = ptr[3];
+
+ if (!rows || !chans) {+ p->n_rows = 1;
+ p->n_entries = 0;
+ continue;
+ }
+
+ psize = (psize + 15) & ~15;
+
+ end = ptr + psize;
+ ptr += 4;
+
+ p->n_rows = rows;
+ p->n_entries = rows;
+ row = 0;
+
+ while ((row < rows) && (ptr < end)) {+ flags = *ptr++;
+ if (!flags) {+ row++;
+ continue;
+ }
+ if (flags & 0xE0) {+ p->n_entries++;
+ if (flags & 0x80) ptr += 2;
+ if (flags & 0x40) ptr++;
+ if (flags & 0x20) {+ ptr++;
+ if (*ptr == 40) ptr += 3;
+ else ptr++;
+ }
+ }
+ }
+
+ entry = malloc(p->n_entries * sizeof(*p->entry));
+ if (!entry) goto error_fb;
+
+ p->entry = entry;
+
+ ptr = buffer + offset + 4;
+ row = 0;
+
+ while ((row < rows) && (ptr < end)) {+ flags = *ptr++;
+ if (!flags) {+ IT_SET_END_ROW(entry);
+ entry++;
+ row++;
+ continue;
+ }
+ if (flags & 0xE0) {+ entry->mask = 0;
+ entry->channel = channel = flags & 0x1F;
+ if (channel >= chans)
+ {+ //channel = 0;
+ //goto error_fb;
+ }
+ if (flags & 0x80) {+ if ((*ptr < 60) && (channel < pchans)) {+ entry->mask |= IT_ENTRY_NOTE;
+ entry->note = *ptr + 35;
+ }
+ ptr++;
+ if (*ptr) {+ entry->mask |= IT_ENTRY_INSTRUMENT;
+ entry->instrument = *ptr;
+ }
+ ptr++;
+ }
+ if (flags & 0x40) {+ if (*ptr <= 64) {+ entry->mask |= IT_ENTRY_VOLPAN;
+ entry->volpan = *ptr;
+ }
+ ptr++;
+ }
+ if (flags & 0x20) {+ entry->mask |= IT_ENTRY_EFFECT;
+
+ switch (*ptr) {+ case 1:
+ entry->effect = IT_XM_FINE_VOLSLIDE_UP;
+ entry->effectvalue = ptr[1];
+ break;
+
+ case 2:
+ entry->effect = IT_VOLUME_SLIDE;
+ entry->effectvalue = (ptr[1] << 4) & 0xF0;
+ break;
+
+ case 3:
+ entry->effect = IT_XM_FINE_VOLSLIDE_DOWN;
+ entry->effectvalue = ptr[1];
+ break;
+
+ case 4:
+ entry->effect = IT_VOLUME_SLIDE;
+ entry->effectvalue = ptr[1] & 0xF;
+ break;
+
+ case 10:
+ entry->effect = IT_PORTAMENTO_UP;
+ entry->effectvalue = EFFECT_VALUE(0xF, ptr[1]);
+ break;
+
+ case 11:
+ entry->effect = IT_PORTAMENTO_UP;
+ entry->effectvalue = ptr[1];
+ break;
+
+ case 12:
+ entry->effect = IT_PORTAMENTO_DOWN;
+ entry->effectvalue = EFFECT_VALUE(ptr[1], 0xF);
+ break;
+
+ case 13:
+ entry->effect = IT_PORTAMENTO_DOWN;
+ entry->effectvalue = ptr[1];
+ break;
+
+ case 14:
+ entry->effect = IT_TONE_PORTAMENTO;
+ entry->effectvalue = ptr[1];
+ break;
+
+ case 15:
+ entry->effect = IT_S;
+ entry->effectvalue = EFFECT_VALUE(IT_S_SET_GLISSANDO_CONTROL, ptr[1] & 15);
+ break;
+
+ case 16:
+ entry->effect = IT_VOLSLIDE_TONEPORTA;
+ entry->effectvalue = ptr[1] << 4;
+ break;
+
+ case 17:
+ entry->effect = IT_VOLSLIDE_TONEPORTA;
+ entry->effectvalue = ptr[1] & 0xF;
+ break;
+
+ case 20:
+ entry->effect = IT_VIBRATO;
+ entry->effectvalue = ptr[1];
+ break;
+
+ case 21:
+ entry->effect = IT_S;
+ entry->effectvalue = EFFECT_VALUE(IT_S_SET_VIBRATO_WAVEFORM, ptr[1] & 11);
+ break;
+
+ case 22:
+ entry->effect = IT_VOLSLIDE_VIBRATO;
+ entry->effectvalue = ptr[1] << 4;
+ break;
+
+ case 23:
+ entry->effect = IT_VOLSLIDE_VIBRATO;
+ entry->effectvalue = ptr[1] & 0xF;
+ break;
+
+ case 30:
+ entry->effect = IT_TREMOLO;
+ entry->effectvalue = ptr[1];
+ break;
+
+ case 31:
+ entry->effect = IT_S;
+ entry->effectvalue = EFFECT_VALUE(IT_S_SET_TREMOLO_WAVEFORM, ptr[1] & 11);
+ break;
+
+ case 40:
+ entry->effect = IT_SET_SAMPLE_OFFSET;
+ entry->effectvalue = ptr[2];
+ ptr += 2;
+ break;
+
+ case 41:
+ entry->effect = IT_XM_RETRIGGER_NOTE;
+ entry->effectvalue = ptr[1];
+ break;
+
+ case 42:
+ entry->effect = IT_S;
+ entry->effectvalue = EFFECT_VALUE(IT_S_DELAYED_NOTE_CUT, ptr[1] & 0xF);
+ break;
+
+ case 43:
+ entry->effect = IT_S;
+ entry->effectvalue = EFFECT_VALUE(IT_S_NOTE_DELAY, ptr[1] & 0xF);
+ break;
+
+ case 50:
+ entry->effect = IT_JUMP_TO_ORDER;
+ entry->effectvalue = ptr[1];
+ break;
+
+ case 51:
+ entry->effect = IT_BREAK_TO_ROW;
+ entry->effectvalue = ptr[1];
+ break;
+
+ case 52:
+ entry->effect = IT_S;
+ entry->effectvalue = EFFECT_VALUE(IT_S_PATTERN_LOOP, ptr[1] & 0xF);
+ break;
+
+ case 53:
+ entry->effect = IT_S;
+ entry->effectvalue = EFFECT_VALUE(IT_S_PATTERN_DELAY, ptr[1] & 0xF);
+ break;
+
+ case 60:
+ entry->effect = IT_SET_SPEED;
+ entry->effectvalue = ptr[1];
+ break;
+
+ case 61:
+ entry->effect = IT_SET_SONG_TEMPO;
+ entry->effectvalue = ptr[1];
+ break;
+
+ case 70:
+ entry->effect = IT_ARPEGGIO;
+ entry->effectvalue = ptr[1];
+ break;
+
+ case 71:
+ entry->effect = IT_S;
+ entry->effectvalue = EFFECT_VALUE(IT_S_FINETUNE, ptr[1] & 0xF);
+ break;
+
+ case 72:
+ /* "balance" ... panning? */
+ entry->effect = IT_SET_PANNING;
+ entry->effectvalue = ((ptr[1] - ((ptr[1] & 8) >> 3)) << 5) / 7;
+ break;
+
+ default:
+ entry->mask &= ~IT_ENTRY_EFFECT;
+ }
+
+ ptr += 2;
+ }
+ if (entry->mask) entry++;
+ }
+ }
+
+ p->n_entries = (int)(entry - p->entry);
+ offset += psize;
+ }
+
+ free(buffer);
+
+ return 0;
+
+error_fb:
+ free(buffer);
+error:
+ return -1;
+}
+
+#define PSM_COMPONENT_ORDERS 0
+#define PSM_COMPONENT_PANPOS 1
+#define PSM_COMPONENT_PATTERNS 2
+#define PSM_COMPONENT_SAMPLE_HEADERS 3
+#define PSM_COMPONENT_COMMENTS 4
+
+typedef struct PSM_COMPONENT
+{+ unsigned char type;
+ long offset;
+}
+PSM_COMPONENT;
+
+static int psm_component_compare(const void *e1, const void *e2)
+{+ return (int)(((const PSM_COMPONENT *)e1)->offset -
+ ((const PSM_COMPONENT *)e2)->offset);
+}
+
+static DUMB_IT_SIGDATA *it_old_psm_load_sigdata(DUMBFILE *f)
+{+ DUMB_IT_SIGDATA *sigdata;
+
+ PSM_COMPONENT *component;
+ int n_components = 0;
+
+ int n, flags, version, pver, n_orders, n_channels, total_pattern_size;
+
+ if (dumbfile_mgetl(f) != DUMB_ID('P','S','M',254)) goto error;+
+ sigdata = malloc(sizeof(*sigdata));
+ if (!sigdata) goto error;
+
+ if (dumbfile_getnc((char *)sigdata->name, 60, f) < 60 ||
+ sigdata->name[59] != 0x1A) goto error_sd;
+ sigdata->name[59] = 0;
+
+ flags = dumbfile_getc(f);
+ version = dumbfile_getc(f);
+ pver = dumbfile_getc(f);
+ sigdata->speed = dumbfile_getc(f);
+ sigdata->tempo = dumbfile_getc(f);
+ sigdata->mixing_volume = dumbfile_getc(f);
+ sigdata->n_orders = dumbfile_igetw(f);
+ n_orders = dumbfile_igetw(f);
+ sigdata->n_patterns = dumbfile_igetw(f);
+ sigdata->n_samples = dumbfile_igetw(f);
+ sigdata->n_pchannels = dumbfile_igetw(f);
+ n_channels = dumbfile_igetw(f);
+
+ if (dumbfile_error(f) ||
+ (flags & 1) ||
+ (version != 1 && version != 0x10) ||
+ (pver) ||
+ (sigdata->n_orders <= 0) ||
+ (sigdata->n_orders > 255) ||
+ (n_orders > 255) ||
+ (n_orders < sigdata->n_orders) ||
+ (sigdata->n_patterns > 255) ||
+ (sigdata->n_samples > 255) ||
+ (sigdata->n_pchannels > DUMB_IT_N_CHANNELS) ||
+ (sigdata->n_pchannels > n_channels) ||
+ (n_channels > DUMB_IT_N_CHANNELS))
+ goto error_sd;
+
+ sigdata->flags = IT_STEREO | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX;
+
+ sigdata->global_volume = 128;
+ sigdata->pan_separation = 128;
+
+ sigdata->song_message = NULL;
+ sigdata->order = NULL;
+ sigdata->instrument = NULL;
+ sigdata->sample = NULL;
+ sigdata->pattern = NULL;
+ sigdata->midi = NULL;
+ sigdata->checkpoint = NULL;
+
+ sigdata->n_instruments = 0;
+
+ sigdata->restart_position = 0;
+
+ sigdata->order = malloc(sigdata->n_orders);
+ if (!sigdata->order) goto error_usd;
+
+ if (sigdata->n_samples) {+ sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
+ if (!sigdata->sample) goto error_usd;
+ for (n = 0; n < sigdata->n_samples; n++)
+ sigdata->sample[n].data = NULL;
+ }
+
+ if (sigdata->n_patterns) {+ sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
+ if (!sigdata->pattern) goto error_usd;
+ for (n = 0; n < sigdata->n_patterns; n++)
+ sigdata->pattern[n].entry = NULL;
+ }
+
+ component = malloc(5 * sizeof(*component));
+ if (!component) goto error_usd;
+
+ for (n = 0; n < 5; n++) {+ component[n_components].offset = dumbfile_igetl(f);
+ if (component[n_components].offset) {+ component[n_components].type = n;
+ n_components++;
+ }
+ }
+
+ if (!n_components) goto error_fc;
+
+ total_pattern_size = (int)dumbfile_igetl(f);
+ if (!total_pattern_size) goto error_fc;
+
+ qsort(component, n_components, sizeof(PSM_COMPONENT), &psm_component_compare);
+
+ memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
+
+ for (n = 0; n < DUMB_IT_N_CHANNELS; n += 4) {+ int sep = 32 * dumb_it_default_panning_separation / 100;
+ sigdata->channel_pan[n ] = 32 - sep;
+ sigdata->channel_pan[n+1] = 32 + sep;
+ sigdata->channel_pan[n+2] = 32 + sep;
+ sigdata->channel_pan[n+3] = 32 - sep;
+ }
+
+ for (n = 0; n < n_components; n++)
+ {+ int o;
+
+ if ( dumbfile_seek(f, component[n].offset, DFS_SEEK_SET) ) goto error_fc;
+
+ switch (component[n].type) {+
+ case PSM_COMPONENT_ORDERS:
+ if (dumbfile_getnc((char *)sigdata->order, sigdata->n_orders, f) < sigdata->n_orders) goto error_fc;
+ if (n_orders > sigdata->n_orders)
+ if (dumbfile_skip(f, n_orders - sigdata->n_orders))
+ goto error_fc;
+ if (dumbfile_igetw(f)) goto error_fc;
+ break;
+
+ case PSM_COMPONENT_PANPOS:
+ if (dumbfile_getnc((char *)sigdata->channel_pan, sigdata->n_pchannels, f) < sigdata->n_pchannels) goto error_fc;
+ for (o = 0; o < sigdata->n_pchannels; o++) {+ sigdata->channel_pan[o] -= (sigdata->channel_pan[o] & 8) >> 3;
+ sigdata->channel_pan[o] = ((int)sigdata->channel_pan[o] << 5) / 7;
+ }
+ break;
+
+ case PSM_COMPONENT_PATTERNS:
+ if (it_old_psm_read_patterns(sigdata->pattern, f, sigdata->n_patterns, total_pattern_size, sigdata->n_pchannels)) goto error_fc;
+ break;
+
+ case PSM_COMPONENT_SAMPLE_HEADERS:
+ if (it_old_psm_read_samples(&sigdata->sample, f, &sigdata->n_samples)) goto error_fc;
+ break;
+
+ case PSM_COMPONENT_COMMENTS:
+ if (dumbfile_mgetl(f) == DUMB_ID('T','E','X','T')) {+ o = dumbfile_igetw(f);
+ if (o > 0) {+ sigdata->song_message = malloc(o + 1);
+ if (dumbfile_getnc((char *)sigdata->song_message, o, f) < o) goto error_fc;
+ sigdata->song_message[o] = 0;
+ }
+ }
+ break;
+ }
+ }
+
+ _dumb_it_fix_invalid_orders(sigdata);
+
+ free(component);
+
+ return sigdata;
+
+error_fc:
+ free(component);
+error_usd:
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+error_sd:
+ free(sigdata);
+error:
+ return NULL;
+}
+
+DUH *dumb_read_old_psm_quick(DUMBFILE *f)
+{+ sigdata_t *sigdata;
+
+ DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
+
+ sigdata = it_old_psm_load_sigdata(f);
+
+ if (!sigdata)
+ return NULL;
+
+ {+ const char *tag[2][2];
+ tag[0][0] = "TITLE";
+ tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
+ tag[1][0] = "FORMAT";
+ tag[1][1] = "PSM (old)";
+ return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
+ }
+}
--- /dev/null
+++ b/src/it/readpsm.c
@@ -1,0 +1,1289 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readpsm.c - Code to read a Protracker Studio / / \ \
+ * module from an open file. | < / \_
+ * | \/ /\ /
+ * By Chris Moeller. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+
+#ifndef min
+#define min(a, b) (((a) < (b)) ? (a) : (b))
+#endif
+
+#ifdef _MSC_VER
+#define snprintf sprintf_s
+#endif
+
+#define PSMV_OLD 940730
+#define PSMV_NEW 940902
+
+typedef struct _PSMCHUNK
+{+ int id;
+ int len;
+ unsigned char * data;
+} PSMCHUNK;
+
+typedef struct _PSMEVENT
+{+ int type;
+ unsigned char data[8];
+} PSMEVENT;
+
+#define PSM_EVENT_END 0
+#define PSM_EVENT_PLAY_PATTERN 1
+#define PSM_EVENT_JUMP_TO_LINE 4
+#define PSM_EVENT_SET_SPEED 7
+#define PSM_EVENT_SET_BPM 8
+#define PSM_EVENT_SAMPLE_MAP_TABLE 12
+#define PSM_EVENT_CHANGE_PAN 13
+#define PSM_EVENT_CHANGE_VOL 14
+
+static int it_psm_process_sample(IT_SAMPLE * sample, const unsigned char * data, int len, int id, int version) {+ int flags;
+ int insno;
+ int length;
+ int loopstart;
+ int loopend;
+ int panpos;
+ int defvol;
+ int samplerate;
+
+ if (len < 0x60) return -1;
+
+ flags = data[0];
+
+ if (version == PSMV_OLD) {+ memcpy(sample->name, data + 0x0D, 34);
+ sample->name[34] = 0;
+
+ insno = data[0x34] | (data[0x35] << 8);
+ length = data[0x36] | (data[0x37] << 8) | (data[0x38] << 16) | (data[0x39] << 24);
+ loopstart = data[0x3A] | (data[0x3B] << 8) | (data[0x3C] << 16) | (data[0x3D] << 24);
+ loopend = data[0x3E] | (data[0x3F] << 8) | (data[0x40] << 16) | (data[0x41] << 24);
+ panpos = data[0x43];
+ defvol = data[0x44];
+ samplerate = data[0x49] | (data[0x4A] << 8) | (data[0x4B] << 16) | (data[0x4C] << 24);
+ } else /*if (version == PSMV_NEW)*/ {+ memcpy(sample->name, data + 0x11, 34);
+ sample->name[34] = 0;
+
+ insno = data[0x38] | (data[0x39] << 8);
+ length = data[0x3A] | (data[0x3B] << 8) | (data[0x3C] << 16) | (data[0x3D] << 24);
+ loopstart = data[0x3E] | (data[0x3F] << 8) | (data[0x40] << 16) | (data[0x41] << 24);
+ loopend = data[0x42] | (data[0x43] << 8) | (data[0x44] << 16) | (data[0x45] << 24);
+ panpos = data[0x48];
+ defvol = data[0x49];
+ samplerate = data[0x4E] | (data[0x4F] << 8) | (data[0x50] << 16) | (data[0x51] << 24);
+ }
+
+ if (insno != id) return -1;
+
+ if (!length) {+ sample->flags &= ~IT_SAMPLE_EXISTS;
+ return 0;
+ }
+
+ if ((length > len - 0x60) || ((flags & 0x7F) != 0)) return -1;
+
+ sample->flags = IT_SAMPLE_EXISTS;
+ sample->length = length;
+ sample->loop_start = loopstart;
+ sample->loop_end = loopend;
+ sample->C5_speed = samplerate;
+ sample->default_volume = defvol >> 1;
+ sample->default_pan = 0;
+ sample->filename[0] = 0;
+ sample->global_volume = 64;
+ sample->vibrato_speed = 0;
+ sample->vibrato_depth = 0;
+ sample->vibrato_rate = 0;
+ sample->vibrato_waveform = IT_VIBRATO_SINE;
+ sample->finetune = 0;
+ sample->max_resampling_quality = -1;
+
+ if (flags & 0x80) {+ if (((unsigned int)sample->loop_end <= (unsigned int)sample->length) &&
+ ((unsigned int)sample->loop_start < (unsigned int)sample->loop_end)) {+ sample->length = sample->loop_end;
+ sample->flags |= IT_SAMPLE_LOOP;
+ }
+ }
+
+ sample->data = malloc(sample->length);
+ if (!sample->data)
+ return -1;
+
+ flags = 0;
+ data += 0x60;
+
+ for (insno = 0; insno < sample->length; insno++) {+ flags += (signed char)(*data++);
+ ((signed char *)sample->data)[insno] = flags;
+ }
+
+ return 0;
+}
+
+static int it_psm_process_pattern(IT_PATTERN * pattern, const unsigned char * data, int len, int speed, int bpm, const unsigned char * pan, const int * vol, int version) {+ int length, nrows, row, rowlen, pos;
+ unsigned flags, chan;
+ IT_ENTRY * entry;
+
+ length = data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24);
+ if (len > length) len = length;
+
+ if (version == PSMV_OLD) {+ if (len < 10) return -1;
+ data += 8;
+ len -= 8;
+ } else /*if (version == PSMV_NEW)*/ {+ if (len < 14) return -1;
+ data += 12;
+ len -= 12;
+ }
+
+ nrows = data[0] | (data[1] << 8);
+
+ if (!nrows) return 0;
+
+ pattern->n_rows = nrows;
+
+ data += 2;
+ len -= 2;
+
+ pattern->n_entries = 0;
+
+ row = 0;
+ pos = 2;
+ rowlen = data[0] | (data[1] << 8);
+
+ while ((row < nrows) && (pos < len)) {+ if (pos >= rowlen) {+ row++;
+ rowlen += data[pos] | (data[pos+1] << 8);
+ pos += 2;
+ continue;
+ }
+
+ flags = data[pos++];
+ chan = data[pos++];
+
+ if (chan > 63) return -1;
+
+ if (flags & 0xF0) {+ pattern->n_entries++;
+ if (flags & 0x80) pos++;
+ if (flags & 0x40) pos++;
+ if (flags & 0x20) pos++;
+ if (flags & 0x10) {+ switch (data[pos]) {+ case 0x29:
+ pos++;
+ case 0x33:
+ pos++;
+ default:
+ pos += 2;
+ }
+ }
+ }
+ }
+
+ if (!pattern->n_entries) return 0;
+
+ pattern->n_entries += nrows;
+ if (speed) pattern->n_entries++;
+ if (bpm >= 0x20) pattern->n_entries++;
+
+ for (pos = 0; pos < 32; pos++) {+ if (!(pan[pos*2+1] & 0xF9)) pattern->n_entries++;
+ if (vol[pos] != -1) pattern->n_entries++;
+ }
+
+ pattern->entry = malloc(pattern->n_entries * sizeof(*pattern->entry));
+ if (!pattern->entry) return -1;
+
+ entry = pattern->entry;
+
+ if (speed) {+ entry->channel = 0;
+ entry->mask = IT_ENTRY_EFFECT;
+ entry->effect = IT_SET_SPEED;
+ entry->effectvalue = speed;
+ entry++;
+ }
+
+ if (bpm >= 0x20) {+ entry->channel = 0;
+ entry->mask = IT_ENTRY_EFFECT;
+ entry->effect = IT_SET_SONG_TEMPO;
+ entry->effectvalue = bpm;
+ entry++;
+ }
+
+ for (pos = 0; pos < 32; pos++) {+ if (!(pan[pos*2+1] & 0xF9)) {+ entry->channel = pos;
+ entry->mask = IT_ENTRY_EFFECT;
+ switch (pan[pos*2+1]) {+ case 0:
+ entry->effect = IT_SET_PANNING;
+ entry->effectvalue = pan[pos*2] ^ 128;
+ break;
+ case 2:
+ entry->effect = IT_S;
+ entry->effectvalue = EFFECT_VALUE(IT_S_SET_SURROUND_SOUND,1);
+ break;
+ case 4:
+ entry->effect = IT_SET_PANNING;
+ entry->effectvalue = 128;
+ break;
+ }
+ entry++;
+ }
+ if (vol[pos] != -1) {+ entry->channel = pos;
+ entry->mask = IT_ENTRY_EFFECT;
+ entry->effect = IT_SET_CHANNEL_VOLUME;
+ entry->effectvalue = (vol[pos] + 2) >> 2;
+ entry++;
+ }
+ }
+
+ row = 0;
+ pos = 2;
+ rowlen = data[0] | (data[1] << 8);
+
+ while ((row < nrows) && (pos < len)) {+ if (pos >= rowlen) {+ IT_SET_END_ROW(entry);
+ entry++;
+ row++;
+ rowlen += data[pos] | (data[pos+1] << 8);
+ pos += 2;
+ continue;
+ }
+
+ flags = data[pos++];
+ entry->channel = data[pos++];
+ entry->mask = 0;
+
+ if (flags & 0xF0) {+ if (flags & 0x80) {+ entry->mask |= IT_ENTRY_NOTE;
+ if (version == PSMV_OLD) {+ if ((data[pos] < 0x80)) entry->note = (data[pos]>>4)*12+(data[pos]&0x0f)+12;
+ else entry->mask &= ~IT_ENTRY_NOTE;
+ } else /*if (version == PSMV_NEW)*/ {+ if ((data[pos]) && (data[pos] < 84)) entry->note = data[pos] + 35;
+ else entry->mask &= ~IT_ENTRY_NOTE;
+ }
+ pos++;
+ }
+
+ if (flags & 0x40) {+ entry->mask |= IT_ENTRY_INSTRUMENT;
+ entry->instrument = data[pos++] + 1;
+ }
+
+ if (flags & 0x20) {+ entry->mask |= IT_ENTRY_VOLPAN;
+ entry->volpan = (data[pos++] + 1) >> 1;
+ }
+
+ if (flags & 0x10) {+ entry->mask |= IT_ENTRY_EFFECT;
+ length = data[pos+1];
+ switch (data[pos]) {+ case 1:
+ entry->effect = IT_VOLUME_SLIDE;
+ if (version == PSMV_OLD) entry->effectvalue = ((length&0x1e)<<3) | 0xF;
+ else /*if (version == PSMV_NEW)*/ entry->effectvalue = (length<<4) | 0xF;
+ break;
+
+ case 2:
+ entry->effect = IT_VOLUME_SLIDE;
+ if (version == PSMV_OLD) entry->effectvalue = (length << 3) & 0xF0;
+ else /*if (version == PSMV_NEW)*/ entry->effectvalue = (length << 4) & 0xF0;
+ break;
+
+ case 3:
+ entry->effect = IT_VOLUME_SLIDE;
+ if (version == PSMV_OLD) entry->effectvalue = (length >> 1) | 0xF0;
+ else /*if (version == PSMV_NEW)*/ entry->effectvalue = length | 0xF0;
+ break;
+
+ case 4:
+ entry->effect = IT_VOLUME_SLIDE;
+ if (version == PSMV_OLD) entry->effectvalue = (length >> 1) & 0xF;
+ else /*if (version == PSMV_NEW)*/ entry->effectvalue = length & 0xF;
+ break;
+
+ case 12:
+ entry->effect = IT_PORTAMENTO_UP;
+ if (version == PSMV_OLD) {+ if (length < 4) entry->effectvalue = length | 0xF0;
+ else entry->effectvalue = length >> 2;
+ } else /*if (version == PSMV_NEW)*/ {+ entry->effectvalue = length;
+ }
+ break;
+
+ case 14:
+ entry->effect = IT_PORTAMENTO_DOWN;
+ if (version == PSMV_OLD) {+ if (length < 4) entry->effectvalue = length | 0xF0;
+ else entry->effectvalue = length >> 2;
+ } else /*if (version == PSMV_NEW)*/ {+ entry->effectvalue = length;
+ }
+ break;
+
+ case 15:
+ entry->effect = IT_TONE_PORTAMENTO;
+ if (version == PSMV_OLD) entry->effectvalue = length >> 2;
+ else /*if (version == PSMV_NEW)*/ entry->effectvalue = length;
+ break;
+
+ case 0x15:
+ entry->effect = IT_VIBRATO;
+ entry->effectvalue = length;
+ break;
+
+ case 0x18:
+ entry->effect = IT_VOLSLIDE_VIBRATO;
+ entry->effectvalue = length;
+ break;
+
+ case 0x29:
+ entry->effect = IT_SET_SAMPLE_OFFSET;
+ entry->effectvalue = data[pos+2];
+ pos += 2;
+ break;
+
+ case 0x2A:
+ entry->effect = IT_RETRIGGER_NOTE;
+ entry->effectvalue = length;
+ break;
+
+ case 0x33:
+#if 0
+ entry->effect = IT_POSITION_JUMP;
+ entry->effectvalue = data[pos+2];
+#else
+ entry->mask &= ~IT_ENTRY_EFFECT;
+#endif
+ pos++;
+ break;
+
+ case 0x34:
+ entry->effect = IT_BREAK_TO_ROW;
+ entry->effectvalue = length;
+ break;
+
+ case 0x3D:
+ entry->effect = IT_SET_SPEED;
+ entry->effectvalue = length;
+ break;
+
+ case 0x3E:
+ if (length >= 0x20) {+ entry->effect = IT_SET_SONG_TEMPO;
+ entry->effectvalue = length;
+ } else {+ entry->mask &= ~IT_ENTRY_EFFECT;
+ }
+ break;
+
+ case 0x47:
+ entry->effect = IT_ARPEGGIO;
+ entry->effectvalue = length;
+ break;
+
+ default:
+ return -1;
+ }
+ pos += 2;
+ }
+ if (entry->mask) entry++;
+ }
+ }
+
+ while (row < nrows) {+ IT_SET_END_ROW(entry);
+ entry++;
+ row++;
+ }
+
+ pattern->n_entries = entry - pattern->entry;
+ if (!pattern->n_entries) return -1;
+
+ return 0;
+}
+
+
+static void free_chunks(PSMCHUNK * chunk, int count) {+ int n;
+
+ for (n = 0; n < count; n++) {+ if (chunk[n].data)
+ free(chunk[n].data);
+ }
+
+ free(chunk);
+}
+
+static void dumb_it_optimize_orders(DUMB_IT_SIGDATA * sigdata);
+
+static int pattcmp( const unsigned char *, const unsigned char *, size_t );
+
+static DUMB_IT_SIGDATA *it_psm_load_sigdata(DUMBFILE *f, int * ver, int subsong)
+{+ DUMB_IT_SIGDATA *sigdata;
+
+ PSMCHUNK *chunk;
+ int n_chunks = 0;
+
+ PSMCHUNK *songchunk;
+ int n_song_chunks = 0;
+
+ PSMEVENT *event = 0;
+ int n_events = 0;
+
+ unsigned char * ptr;
+
+ int n, length, o;
+
+ int found;
+
+ int n_patterns = 0;
+
+ int first_pattern_line = -1;
+ int first_pattern;
+
+ int speed, bpm;
+ unsigned char pan[64];
+ int vol[32];
+
+ if (dumbfile_mgetl(f) != DUMB_ID('P','S','M',' ')) goto error;+
+ length = dumbfile_igetl(f);
+
+ if (dumbfile_mgetl(f) != DUMB_ID('F','I','L','E')) goto error;+
+ chunk = calloc(768, sizeof(*chunk));
+
+ while (length >= 8) {+ chunk[n_chunks].id = dumbfile_mgetl(f);
+ n = dumbfile_igetl(f);
+ length -= 8;
+ if (n < 0 || n > length)
+ goto error_fc;
+ chunk[n_chunks].len = n;
+ if (n) {+ ptr = malloc(n);
+ if (!ptr) goto error_fc;
+ if (dumbfile_getnc((char *)ptr, n, f) < n)
+ {+ free(ptr);
+ goto error_fc;
+ }
+ chunk[n_chunks].data = ptr;
+ }
+ n_chunks++;
+ length -= n;
+ }
+
+ if (!n_chunks) goto error_fc;
+
+ sigdata = malloc(sizeof(*sigdata));
+ if (!sigdata) goto error_fc;
+
+ sigdata->n_patterns = 0;
+ sigdata->n_samples = 0;
+ sigdata->name[0] = 0;
+
+ found = 0;
+
+ for (n = 0; n < n_chunks; n++) {+ PSMCHUNK * c = &chunk[n];
+ switch(c->id) {+ case DUMB_ID('S','D','F','T'):+ /* song data format? */
+ if ((found & 1) || (c->len != 8) || memcmp(c->data, "MAINSONG", 8)) goto error_sd;
+ found |= 1;
+ break;
+
+ case DUMB_ID('S','O','N','G'):+ if (/*(found & 2) ||*/ (c->len < 11) /*|| memcmp(c->data, "MAINSONG", 8)*/) goto error_sd;
+ found |= 2;
+ break;
+
+ case DUMB_ID('D','S','M','P'):+ sigdata->n_samples++;
+ break;
+
+ case DUMB_ID('T','I','T','L'):+ length = min(sizeof(sigdata->name) - 1, (unsigned)c->len);
+ memcpy(sigdata->name, c->data, length);
+ sigdata->name[length] = 0;
+ }
+ }
+
+ if (found != 3 || !sigdata->n_samples) goto error_sd;
+
+ sigdata->song_message = NULL;
+ sigdata->order = NULL;
+ sigdata->instrument = NULL;
+ sigdata->sample = NULL;
+ sigdata->pattern = NULL;
+ sigdata->midi = NULL;
+ sigdata->checkpoint = NULL;
+
+ sigdata->n_instruments = 0;
+ sigdata->n_orders = 0;
+
+ for (n = 0; n < n_chunks; n++) {+ PSMCHUNK * c = &chunk[n];
+ if (c->id == DUMB_ID('S','O','N','G')) {+ if (subsong == 0) break;
+ subsong--;
+ }
+ }
+
+ if (n == n_chunks) return NULL;
+ subsong = n;
+
+ /*for (n = 0; n < n_chunks; n++) {+ PSMCHUNK * c = &chunk[n];
+ if (c->id == DUMB_ID('S','O','N','G')) {*/+ {+ PSMCHUNK * c = &chunk[subsong];
+ {+ ptr = c->data;
+ if (ptr[10] > 32) goto error_usd;
+ sigdata->n_pchannels = ptr[10];
+ length = c->len - 11;
+ ptr += 11;
+ songchunk = 0;
+ if (length >= 8) {+ songchunk = malloc(128 * sizeof(*songchunk));
+ if (!songchunk) goto error_usd;
+ while (length >= 8) {+ songchunk[n_song_chunks].id = DUMB_ID(ptr[0], ptr[1], ptr[2], ptr[3]);
+ n = ptr[4] | (ptr[5] << 8) | (ptr[6] << 16) | (ptr[7] << 24);
+ length -= 8;
+ if (n > length) goto error_sc;
+ songchunk[n_song_chunks].len = n;
+ songchunk[n_song_chunks].data = ptr + 8;
+ n_song_chunks++;
+ length -= n;
+ ptr += 8 + n;
+ }
+ }
+ /*break;*/
+ }
+ }
+
+ if (!n_song_chunks) goto error_sc;
+
+ found = 0;
+
+ for (n = 0; n < n_song_chunks; n++) {+ PSMCHUNK * c = &songchunk[n];
+
+ if (c->id == DUMB_ID('D','A','T','E')) {+ /* date of the library build / format spec */
+ if (c->len == 6) {+ length = c->len;
+ ptr = c->data;
+ while (length > 0) {+ if (*ptr >= '0' && *ptr <= '9') {+ found = (found * 10) + (*ptr - '0');
+ } else {+ found = 0;
+ break;
+ }
+ ptr++;
+ length--;
+ }
+ }
+ break;
+ }
+ }
+
+ /*
+ if (found != 940506 &&
+ found != 940509 &&
+ found != 940510 &&
+ found != 940530 &&
+ found != 940629 &&
+ found != PSMV_OLD &&
+ found != 941011 &&
+ found != PSMV_NEW &&
+ found != 940906 &&
+ found != 940903 &&
+ found != 940914 &&
+ found != 941213 &&
+ found != 800211) WTF?
+ goto error_sc;
+ */
+
+ *ver = found;
+
+ if (found == 800211 ||
+ found == PSMV_NEW ||
+ found == 940903 ||
+ found == 940906 ||
+ found == 940914 ||
+ found == 941213) found = PSMV_NEW;
+ else found = PSMV_OLD;
+
+ memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
+
+ for (n = 0; n < DUMB_IT_N_CHANNELS; n += 4) {+ int sep = 32 * dumb_it_default_panning_separation / 100;
+ sigdata->channel_pan[n ] = 32 - sep;
+ sigdata->channel_pan[n+1] = 32 + sep;
+ sigdata->channel_pan[n+2] = 32 + sep;
+ sigdata->channel_pan[n+3] = 32 - sep;
+ }
+
+ for (n = 0; n < n_song_chunks; n++) {+ PSMCHUNK * c = &songchunk[n];
+
+ switch (c->id) {+ case DUMB_ID('O','P','L','H'):+ if (c->len < 2) goto error_sc;
+ ptr = c->data;
+ o = ptr[0] | (ptr[1] << 8);
+ if (!o) goto error_sc;
+ event = malloc(o * sizeof(*event));
+ if (!event) goto error_sc;
+ length = c->len - 2;
+ ptr += 2;
+ while ((length > 0) && (n_events < o)) {+ event[n_events].type = *ptr;
+ switch (*ptr) {+ case PSM_EVENT_END:
+ ptr++;
+ length--;
+ break;
+
+ case PSM_EVENT_PLAY_PATTERN:
+ if (found == PSMV_OLD) {+ if (length < 5) goto error_ev;
+ memcpy(event[n_events].data, ptr + 1, 4);
+ ptr += 5;
+ length -= 5;
+ } else /*if (found == PSMV_NEW)*/ {+ if (length < 9) goto error_ev;
+ memcpy(event[n_events].data, ptr + 1, 8);
+ ptr += 9;
+ length -= 9;
+ }
+ break;
+
+ case PSM_EVENT_SET_SPEED:
+ case PSM_EVENT_SET_BPM:
+ if (length < 2) goto error_ev;
+ event[n_events].data[0] = ptr[1];
+ ptr += 2;
+ length -= 2;
+ break;
+
+ case PSM_EVENT_JUMP_TO_LINE:
+ case PSM_EVENT_CHANGE_VOL:
+ if (length < 3) goto error_ev;
+ memcpy(event[n_events].data, ptr + 1, 2);
+ ptr += 3;
+ length -= 3;
+ break;
+
+ case PSM_EVENT_SAMPLE_MAP_TABLE:
+ if (length < 7) goto error_ev;
+ memcpy(event[n_events].data, ptr + 1, 6);
+ ptr += 7;
+ length -= 7;
+ break;
+
+ case PSM_EVENT_CHANGE_PAN:
+ if (length < 4) goto error_ev;
+ memcpy(event[n_events].data, ptr + 1, 3);
+ ptr += 4;
+ length -= 4;
+ break;
+
+ default:
+ goto error_ev;
+ }
+ n_events++;
+ }
+ break;
+
+ case DUMB_ID('P','P','A','N'):+ length = c->len;
+ if (length & 1) goto error_ev;
+ ptr = c->data;
+ o = 0;
+ while (length > 0) {+ switch (ptr[0]) {+ case 0:
+ sigdata->channel_pan[o] = ((((int)(signed char)ptr[1]) * 32) / 127) + 32;
+ break;
+ case 2:
+ sigdata->channel_pan[o] = IT_SURROUND;
+ break;
+ case 4:
+ sigdata->channel_pan[o] = 32;
+ break;
+ }
+ ptr += 2;
+ length -= 2;
+ if (++o >= DUMB_IT_N_CHANNELS) break;
+ }
+ break;
+
+ /*
+ case DUMB_ID('P','A','T','T'):+ case DUMB_ID('D','S','A','M'):+ */
+ }
+ }
+
+ sigdata->flags = IT_STEREO | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX;
+
+ sigdata->global_volume = 128;
+ sigdata->speed = 6;
+ sigdata->tempo = 125;
+ sigdata->mixing_volume = 48;
+ sigdata->pan_separation = 128;
+
+ speed = 0;
+ bpm = 0;
+ memset(pan, 255, sizeof(pan));
+ memset(vol, 255, sizeof(vol));
+
+ sigdata->n_patterns = n_events;
+ sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
+ if (!sigdata->pattern) goto error_ev;
+ for (n = 0; n < sigdata->n_patterns; n++)
+ sigdata->pattern[n].entry = NULL;
+
+ for (n = 0; n < n_events; n++) {+ PSMEVENT * e = &event[n];
+ switch (e->type) {+ case PSM_EVENT_END:
+ n = n_events;
+ break;
+
+ case PSM_EVENT_PLAY_PATTERN:
+ for (o = 0; o < n_chunks; o++) {+ PSMCHUNK * c = &chunk[o];
+ if (c->id == DUMB_ID('P','B','O','D')) {+ ptr = c->data;
+ length = c->len;
+ if (found == PSMV_OLD) {+ if (length < 8) goto error_ev;
+ if (!pattcmp(ptr + 4, e->data, 4)) {+ if (it_psm_process_pattern(&sigdata->pattern[n_patterns], ptr, length, speed, bpm, pan, vol, found)) goto error_ev;
+ if (first_pattern_line < 0) {+ first_pattern_line = n;
+ first_pattern = o;
+ }
+ e->data[0] = n_patterns;
+ e->data[1] = n_patterns >> 8;
+ n_patterns++;
+ break;
+ }
+ } else /*if (found == PSMV_NEW)*/ {+ if (length < 12) goto error_ev;
+ if (!pattcmp(ptr + 4, e->data, 8)) {+ if (it_psm_process_pattern(&sigdata->pattern[n_patterns], ptr, length, speed, bpm, pan, vol, found)) goto error_ev;
+ if (first_pattern_line < 0) {+ first_pattern_line = n;
+ first_pattern = o;
+ }
+ e->data[0] = n_patterns;
+ e->data[1] = n_patterns >> 8;
+ n_patterns++;
+ break;
+ }
+ }
+ }
+ }
+ if (o == n_chunks) goto error_ev;
+
+ speed = 0;
+ bpm = 0;
+ memset(pan, 255, sizeof(pan));
+ memset(vol, 255, sizeof(vol));
+
+ e->type = PSM_EVENT_END;
+ break;
+
+ case PSM_EVENT_JUMP_TO_LINE:
+ o = e->data[0] | (e->data[1] << 8);
+ if (o >= n_events) goto error_ev;
+ if (o == 0) {+ /* whew! easy case! */
+ sigdata->restart_position = 0;
+ n = n_events;
+ } else if (o == n) {+ /* freeze */
+ n = n_events;
+ } else if (o > n) {+ /* jump ahead, setting played event numbers to zero will prevent endless looping */
+ n = o - 1;
+ } else if (o >= first_pattern_line) {+ /* another semi-easy case */
+ sigdata->restart_position = event[o].data[0] | (event[o].data[1] << 8);
+ n = n_events;
+ } else {+ /* crud, try to simulate rerunning all of the commands from the indicated
+ * line up to the first pattern, then dupe the first pattern again.
+ */
+ /*
+ PSMCHUNK * c = &chunk[first_pattern];
+
+ for (; o < first_pattern_line; o++) {+ PSMEVENT * ev = &event[o];
+ switch (ev->type) {+ case PSM_EVENT_SET_SPEED:
+ speed = ev->data[0];
+ break;
+ case PSM_EVENT_SET_BPM:
+ bpm = ev->data[0];
+ break;
+ case PSM_EVENT_CHANGE_PAN:
+ if (ev->data[0] > 31) goto error_ev;
+ pan[ev->data[0] * 2] = ev->data[1];
+ pan[ev->data[0] * 2 + 1] = ev->data[2];
+ break;
+ case PSM_EVENT_CHANGE_VOL:
+ if (ev->data[0] > 31) goto error_ev;
+ vol[ev->data[0]] = ev->data[1];
+ break;
+ }
+ }
+
+ if (it_psm_process_pattern(&sigdata->pattern[n_patterns], c->data, c->len, speed, bpm, pan, vol, found)) goto error_ev;
+ n_patterns++;
+ sigdata->restart_position = 1;
+ n = n_events;
+
+ Eh, what the hell? PSM has no panning commands anyway.
+ */
+ sigdata->restart_position = 0;
+ n = n_events;
+ }
+ e->type = PSM_EVENT_END;
+ break;
+
+ case PSM_EVENT_SET_SPEED:
+ speed = e->data[0];
+ break;
+
+ case PSM_EVENT_SET_BPM:
+ bpm = e->data[0];
+ break;
+
+ case PSM_EVENT_CHANGE_PAN:
+ o = e->data[0];
+ if (o > 31) goto error_ev;
+ pan[o * 2] = e->data[1];
+ pan[o * 2 + 1] = e->data[2];
+ break;
+
+ case PSM_EVENT_CHANGE_VOL:
+ o = e->data[0];
+ if (o > 31) goto error_ev;
+ vol[o] = e->data[1];
+ break;
+
+ case PSM_EVENT_SAMPLE_MAP_TABLE:
+ if (e->data[0] != 0 || e->data[1] != 0xFF ||
+ e->data[2] != 0 || e->data[3] != 0 ||
+ e->data[4] != 1 || e->data[5] != 0)
+ goto error_ev;
+ break;
+ }
+ }
+
+ if (n_patterns > 256) goto error_ev;
+
+ sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
+ if (!sigdata->sample) goto error_ev;
+ for (n = 0; n < sigdata->n_samples; n++) {+ sigdata->sample[n].data = NULL;
+ sigdata->sample[n].flags = 0;
+ }
+
+ o = 0;
+ for (n = 0; n < n_chunks; n++) {+ PSMCHUNK * c = &chunk[n];
+ if (c->id == DUMB_ID('D','S','M','P')) {+ if (it_psm_process_sample(&sigdata->sample[o], c->data, c->len, o, found)) goto error_ev;
+ o++;
+ }
+ }
+
+ sigdata->n_orders = n_patterns;
+ sigdata->n_patterns = n_patterns;
+
+ sigdata->order = malloc(n_patterns);
+
+ for (n = 0; n < n_patterns; n++) {+ sigdata->order[n] = n;
+ }
+
+ free(event);
+ free(songchunk);
+ free_chunks(chunk, n_chunks);
+
+ _dumb_it_fix_invalid_orders(sigdata);
+
+ dumb_it_optimize_orders(sigdata);
+
+ return sigdata;
+
+error_ev:
+ free(event);
+error_sc:
+ if (songchunk) free(songchunk);
+error_usd:
+ _dumb_it_unload_sigdata(sigdata);
+ goto error_fc;
+error_sd:
+ free(sigdata);
+error_fc:
+ free_chunks(chunk, n_chunks);
+error:
+ return NULL;
+}
+
+static int it_order_compare(const void *e1, const void *e2) {+ if (*((const char *)e1) < *((const char *)e2))
+ return -1;
+
+ if (*((const char *)e1) > *((const char *)e2))
+ return 1;
+
+ return 0;
+}
+
+/*
+static int it_optimize_compare(const void *e1, const void *e2) {+ if (((const IT_ENTRY *)e1)->channel < ((const IT_ENTRY *)e2)->channel)
+ return -1;
+
+ if (((const IT_ENTRY *)e1)->channel > ((const IT_ENTRY *)e2)->channel)
+ return 1;
+
+ return 0;
+}
+*/
+
+static int it_entry_compare(const IT_ENTRY * e1, const IT_ENTRY * e2) {+ if (IT_IS_END_ROW(e1) && IT_IS_END_ROW(e2)) return 1;
+ if (e1->channel != e2->channel) return 0;
+ if (e1->mask != e2->mask) return 0;
+ if ((e1->mask & IT_ENTRY_NOTE) && (e1->note != e2->note)) return 0;
+ if ((e1->mask & IT_ENTRY_INSTRUMENT) && (e1->instrument != e2->instrument)) return 0;
+ if ((e1->mask & IT_ENTRY_VOLPAN) && (e1->volpan != e2->volpan)) return 0;
+ if ((e1->mask & IT_ENTRY_EFFECT) && ((e1->effect != e2->effect) || (e1->effectvalue != e2->effectvalue))) return 0;
+ return 1;
+}
+
+/*
+static void dumb_it_optimize_pattern(IT_PATTERN * pattern) {+ IT_ENTRY * entry, * end;
+ IT_ENTRY * rowstart, * rowend;
+ IT_ENTRY * current;
+
+ if (!pattern->n_entries || !pattern->entry) return;
+
+ current = entry = pattern->entry;
+ end = entry + pattern->n_entries;
+
+ while (entry < end) {+ rowstart = entry;
+ while (!IT_IS_END_ROW(entry)) entry++;
+ rowend = entry;
+ if (rowend > rowstart + 1)
+ qsort(rowstart, rowend - rowstart, sizeof(IT_ENTRY), &it_optimize_compare);
+ entry = rowstart;
+ while (entry < rowend) {+ if (!(entry->mask)) {}+ else if (it_entry_compare(entry, current)) {}+ else if (!(current->mask) ||
+ ((entry->channel == current->channel) &&
+ ((entry->mask | current->mask) == (entry->mask ^ current->mask)))) {+ current->mask |= entry->mask;
+ if (entry->mask & IT_ENTRY_NOTE) current->note = entry->note;
+ if (entry->mask & IT_ENTRY_INSTRUMENT) current->instrument = entry->instrument;
+ if (entry->mask & IT_ENTRY_VOLPAN) current->volpan = entry->volpan;
+ if (entry->mask & IT_ENTRY_EFFECT) {+ current->effect = entry->effect;
+ current->effectvalue = entry->effectvalue;
+ }
+ } else {+ if (++current < entry) *current = *entry;
+ }
+ entry++;
+ }
+ if (++current < entry) *current = *entry;
+ entry++;
+ }
+
+ current++;
+
+ if (current < end) {+ IT_ENTRY * opt;
+ pattern->n_entries = current - pattern->entry;
+ opt = realloc(pattern->entry, pattern->n_entries * sizeof(*pattern->entry));
+ if (opt) pattern->entry = opt;
+ }
+}
+*/
+
+static int it_pattern_compare(const IT_PATTERN * p1, const IT_PATTERN * p2) {+ IT_ENTRY * e1, * end;
+ IT_ENTRY * e2;
+
+ if (p1 == p2) return 1;
+ if (p1->n_entries != p2->n_entries) return 0;
+
+ e1 = p1->entry; end = e1 + p1->n_entries;
+ e2 = p2->entry;
+
+ while (e1 < end) {+ if (!it_entry_compare(e1, e2)) return 0;
+ e1++; e2++;
+ }
+
+ return 1;
+}
+
+static void dumb_it_optimize_orders(DUMB_IT_SIGDATA * sigdata) {+ int n, o, p;
+
+ /*int last_invalid = (sigdata->flags & IT_WAS_AN_XM) ? 255 : 253;*/
+
+ unsigned char * order_list;
+ int n_patterns;
+
+ IT_PATTERN * pattern;
+
+ if (!sigdata->n_orders || !sigdata->n_patterns) return;
+
+ n_patterns = 0;
+ order_list = malloc(sigdata->n_orders);
+
+ if (!order_list) return;
+
+ for (n = 0; n < sigdata->n_orders; n++) {+ if (sigdata->order[n] < sigdata->n_patterns) {+ for (o = 0; o < n_patterns; o++) {+ if (sigdata->order[n] == order_list[o]) break;
+ }
+ if (o == n_patterns) {+ order_list[n_patterns++] = sigdata->order[n];
+ }
+ }
+ }
+
+ if (!n_patterns) {+ free(order_list);
+ return;
+ }
+
+ /*for (n = 0; n < n_patterns; n++) {+ dumb_it_optimize_pattern(&sigdata->pattern[order_list[n]]);
+ }*/
+
+ for (n = 0; n < n_patterns; n++) {+ for (o = n + 1; o < n_patterns; o++) {+ if ((order_list[n] != order_list[o]) &&
+ it_pattern_compare(&sigdata->pattern[order_list[n]], &sigdata->pattern[order_list[o]])) {+ for (p = 0; p < sigdata->n_orders; p++) {+ if (sigdata->order[p] == order_list[o]) {+ sigdata->order[p] = order_list[n];
+ }
+ }
+ for (p = o + 1; p < n_patterns; p++) {+ if (order_list[p] == order_list[o]) {+ order_list[p] = order_list[n];
+ }
+ }
+ order_list[o] = order_list[n];
+ }
+ }
+ }
+
+ qsort(order_list, n_patterns, sizeof(*order_list), &it_order_compare);
+
+ for (n = 0, o = 0; n < n_patterns; n++) {+ if (order_list[n] != order_list[o]) {+ if (++o < n) order_list[o] = order_list[n];
+ }
+ }
+
+ n_patterns = o + 1;
+
+ pattern = malloc(n_patterns * sizeof(*pattern));
+ if (!pattern) {+ free(order_list);
+ return;
+ }
+
+ for (n = 0; n < n_patterns; n++) {+ pattern[n] = sigdata->pattern[order_list[n]];
+ }
+
+ for (n = 0; n < sigdata->n_patterns; n++) {+ for (o = 0; o < n_patterns; o++) {+ if (order_list[o] == n) break;
+ }
+ if (o == n_patterns) {+ if (sigdata->pattern[n].entry)
+ free(sigdata->pattern[n].entry);
+ }
+ }
+
+ free(sigdata->pattern);
+ sigdata->pattern = pattern;
+ sigdata->n_patterns = n_patterns;
+
+ for (n = 0; n < sigdata->n_orders; n++) {+ for (o = 0; o < n_patterns; o++) {+ if (sigdata->order[n] == order_list[o]) {+ sigdata->order[n] = o;
+ break;
+ }
+ }
+ }
+
+ free(order_list);
+}
+
+int dumb_get_psm_subsong_count(DUMBFILE *f) {+ int length, subsongs;
+ long l;
+
+ if (dumbfile_mgetl(f) != DUMB_ID('P','S','M',' ')) return 0;+
+ length = dumbfile_igetl(f);
+
+ if (dumbfile_mgetl(f) != DUMB_ID('F','I','L','E')) return 0;+
+ subsongs = 0;
+
+ while (length >= 8 && !dumbfile_error(f)) {+ if (dumbfile_mgetl(f) == DUMB_ID('S','O','N','G')) subsongs++;+ l = dumbfile_igetl(f);
+ dumbfile_skip(f, l);
+ length -= l + 8;
+ }
+
+ if (dumbfile_error(f)) return 0;
+
+ return subsongs;
+}
+
+
+
+/* Eww */
+int pattcmp( const unsigned char * a, const unsigned char * b, size_t l )
+{+ size_t i, j, na, nb;
+ char * p;
+
+ na = nb = 0;
+
+ i = memcmp( a, b, l );
+ if ( !i ) return i;
+
+ /* damnit */
+
+ for ( i = 0; i < l; ++i )
+ {+ if ( a [i] >= '0' && a [i] <= '9' ) break;
+ }
+
+ if ( i < l )
+ {+ na = strtoul( (const char *)a + i, &p, 10 );
+ if ( (const unsigned char *)p == a + i ) return 1;
+ }
+
+ for ( j = 0; j < l; ++j )
+ {+ if ( b [j] >= '0' && b [j] <= '9' ) break;
+ }
+
+ if ( j < l )
+ {+ nb = strtoul( (const char *)b + j, &p, 10 );
+ if ( (const unsigned char *)p == b + j ) return -1;
+ }
+
+ if ( i < j ) return -1;
+ else if ( i > j ) return 1;
+
+ i = memcmp( a, b, j );
+ if ( i ) return i;
+
+ return na - nb;
+}
+
+
+
+DUH *dumb_read_psm_quick(DUMBFILE *f, int subsong)
+{+ sigdata_t *sigdata;
+ int ver;
+
+ DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
+
+ sigdata = it_psm_load_sigdata(f, &ver, subsong);
+
+ if (!sigdata)
+ return NULL;
+
+ {+ int n_tags = 2;
+ char version[16];
+ const char *tag[3][2];
+ tag[0][0] = "TITLE";
+ tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
+ tag[1][0] = "FORMAT";
+ tag[1][1] = "PSM";
+ if ( ver )
+ {+ tag[2][0] = "FORMATVERSION";
+ snprintf( version, 15, "%d", ver );
+ version[15] = 0;
+ tag[2][1] = (const char *) &version;
+ ++n_tags;
+ }
+ return make_duh(-1, n_tags, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
+ }
+}
--- /dev/null
+++ b/src/it/readptm.c
@@ -1,0 +1,554 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readptm.c - Code to read a Poly Tracker v2.03 / / \ \
+ * module from an open file. | < / \_
+ * | \/ /\ /
+ * By Chris Moeller. Based on reads3m.c \_ / > /
+ * by entheh. | \ / /
+ * | ' /
+ * \__/
+ */
+
+// IT_STEREO... :o
+#include <stdlib.h>
+#include <string.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+static int it_ptm_read_sample_header(IT_SAMPLE *sample, long *offset, DUMBFILE *f)
+{+ int flags;
+
+ flags = dumbfile_getc(f);
+
+ dumbfile_getnc((char *)sample->filename, 12, f);
+ sample->filename[12] = 0;
+
+ sample->default_volume = dumbfile_getc(f);
+
+ sample->C5_speed = dumbfile_igetw(f) << 1;
+
+ dumbfile_skip(f, 2); /* segment */
+
+ *offset = dumbfile_igetl(f);
+
+ sample->length = dumbfile_igetl(f);
+ sample->loop_start = dumbfile_igetl(f);
+ sample->loop_end = dumbfile_igetl(f);
+
+ /* GUSBegin, GUSLStart, GUSLEnd, GUSLoop, reserverd */
+ dumbfile_skip(f, 4+4+4+1+1);
+
+ dumbfile_getnc((char *)sample->name, 28, f);
+ sample->name[28] = 0;
+
+ /*
+ if (dumbfile_mgetl(f) != DUMB_ID('P','T','M','S'))+ return -1;
+ */
+
+ /* BLAH! Shit likes to have broken or missing sample IDs */
+ dumbfile_skip(f, 4);
+
+ if ((flags & 3) == 0) {+ /* Looks like no sample */
+ sample->flags &= ~IT_SAMPLE_EXISTS;
+ return dumbfile_error(f);
+ }
+
+ sample->global_volume = 64;
+
+ sample->flags = IT_SAMPLE_EXISTS;
+ if (flags & 4) sample->flags |= IT_SAMPLE_LOOP;
+ if (flags & 8) sample->flags |= IT_SAMPLE_PINGPONG_LOOP;
+
+ if (flags & 16) {+ sample->flags |= IT_SAMPLE_16BIT;
+
+ sample->length >>= 1;
+ sample->loop_start >>= 1;
+ sample->loop_end >>= 1;
+ }
+
+ if (sample->loop_end) sample->loop_end--;
+
+ sample->default_pan = 0; // 0 = don't use, or 160 = centre?
+
+ if (sample->length <= 0)
+ sample->flags &= ~IT_SAMPLE_EXISTS;
+ else if (sample->flags & IT_SAMPLE_LOOP) {+ if ((unsigned int)sample->loop_end > (unsigned int)sample->length)
+ sample->flags &= ~IT_SAMPLE_LOOP;
+ else if ((unsigned int)sample->loop_start >= (unsigned int)sample->loop_end)
+ sample->flags &= ~IT_SAMPLE_LOOP;
+ else
+ sample->length = sample->loop_end;
+ }
+
+
+ //Do we need to set all these?
+ sample->vibrato_speed = 0;
+ sample->vibrato_depth = 0;
+ sample->vibrato_rate = 0;
+ sample->vibrato_waveform = IT_VIBRATO_SINE;
+ sample->finetune = 0;
+ sample->max_resampling_quality = -1;
+
+ return dumbfile_error(f);
+}
+
+
+static int it_ptm_read_byte(DUMBFILE *f)
+{+ int meh = dumbfile_getc(f);
+ if (meh < 0) return 0;
+ return meh;
+}
+
+static int it_ptm_read_sample_data(IT_SAMPLE *sample, int last, DUMBFILE *f)
+{+ long n;
+ int s;
+
+ sample->data = malloc(sample->length * (sample->flags & IT_SAMPLE_16BIT ? 2 : 1));
+ if (!sample->data)
+ return -1;
+
+ s = 0;
+
+ if (sample->flags & IT_SAMPLE_16BIT) {+ unsigned char a, b;
+ for (n = 0; n < sample->length; n++) {+ a = s += (signed char) it_ptm_read_byte(f);
+ b = s += (signed char) it_ptm_read_byte(f);
+ ((short *)sample->data)[n] = a | (b << 8);
+ }
+ } else {+ for (n = 0; n < sample->length; n++) {+ s += (signed char) it_ptm_read_byte(f);
+ ((signed char *)sample->data)[n] = s;
+ }
+ }
+
+ if (dumbfile_error(f) && !last)
+ return -1;
+
+ return 0;
+}
+
+
+
+static int it_ptm_read_pattern(IT_PATTERN *pattern, DUMBFILE *f, unsigned char *buffer, int length)
+{+ int buflen = 0;
+ int bufpos = 0;
+ int effect, effectvalue;
+
+ IT_ENTRY *entry;
+
+ unsigned char channel;
+
+ if (!length)
+ return -1;
+
+ pattern->n_rows = 0;
+ pattern->n_entries = 0;
+
+ /* Read in the pattern data, little by little, and work out how many
+ * entries we need room for. Sorry, but this is just so funny...
+ */
+ for (;;) {+ unsigned char b = buffer[buflen++] = dumbfile_getc(f);
+
+#if 1
+ static const unsigned char used[8] = {0, 2, 2, 4, 1, 3, 3, 5};+ channel = b & 31;
+ b >>= 5;
+ pattern->n_entries++;
+ if (b) {+ if (buflen + used[b] >= 65536) return -1;
+ dumbfile_getnc((char *)buffer + buflen, used[b], f);
+ buflen += used[b];
+ } else {+ /* End of row */
+ if (++pattern->n_rows == 64) break;
+ if (buflen >= 65536) return -1;
+ }
+#else
+ if (b == 0) {+ /* End of row */
+ pattern->n_entries++;
+ if (++pattern->n_rows == 64) break;
+ if (buflen >= 65536) return -1;
+ } else {+ static const unsigned char used[8] = {0, 2, 2, 4, 1, 3, 3, 5};+ channel = b & 31;
+ b >>= 5;
+ if (b) {+ pattern->n_entries++;
+ if (buflen + used[b] >= 65536) return -1;
+ dumbfile_getnc(buffer + buflen, used[b], f);
+ buflen += used[b];
+ }
+ }
+#endif
+
+ /* We have ensured that buflen < 65536 at this point, so it is safe
+ * to iterate and read at least one more byte without checking.
+ * However, now would be a good time to check for errors reading from
+ * the file.
+ */
+
+ if (dumbfile_error(f))
+ return -1;
+
+ /* Great. We ran out of data, but there should be data for more rows.
+ * Fill the rest with null data...
+ */
+ if (buflen >= length && pattern->n_rows < 64)
+ {+ while (pattern->n_rows < 64)
+ {+ if (buflen >= 65536) return -1;
+ buffer[buflen++] = 0;
+ pattern->n_entries++;
+ pattern->n_rows++;
+ }
+ break;
+ }
+ }
+
+ pattern->entry = malloc(pattern->n_entries * sizeof(*pattern->entry));
+
+ if (!pattern->entry)
+ return -1;
+
+ entry = pattern->entry;
+
+ while (bufpos < buflen) {+ unsigned char b = buffer[bufpos++];
+
+ if (b == 0)
+ {+ /* End of row */
+ IT_SET_END_ROW(entry);
+ entry++;
+ continue;
+ }
+
+ channel = b & 31;
+
+ if (b & 224) {+ entry->mask = 0;
+ entry->channel = channel;
+
+ if (b & 32) {+ unsigned char n = buffer[bufpos++];
+ if (n == 254 || (n >= 1 && n <= 120)) {+ if (n == 254)
+ entry->note = IT_NOTE_CUT;
+ else
+ entry->note = n - 1;
+ entry->mask |= IT_ENTRY_NOTE;
+ }
+
+ entry->instrument = buffer[bufpos++];
+ if (entry->instrument)
+ entry->mask |= IT_ENTRY_INSTRUMENT;
+ }
+
+ if (b & 64) {+ effect = buffer[bufpos++];
+ effectvalue = buffer[bufpos++];
+ _dumb_it_ptm_convert_effect(effect, effectvalue, entry);
+ }
+
+ if (b & 128) {+ entry->volpan = buffer[bufpos++];
+ if (entry->volpan <= 64)
+ entry->mask |= IT_ENTRY_VOLPAN;
+ }
+
+ entry++;
+ }
+ }
+
+ ASSERT(entry == pattern->entry + pattern->n_entries);
+
+ return 0;
+}
+
+
+
+/** WARNING: this is duplicated in itread.c - also bad practice to use the same struct name unless they are unified in a header */
+/* Currently we assume the sample data are stored after the sample headers in
+ * module files. This assumption may be unjustified; let me know if you have
+ * trouble.
+ */
+
+#define PTM_COMPONENT_INSTRUMENT 1
+#define PTM_COMPONENT_PATTERN 2
+#define PTM_COMPONENT_SAMPLE 3
+
+typedef struct PTM_COMPONENT
+{+ unsigned char type;
+ unsigned char n;
+ long offset;
+}
+PTM_COMPONENT;
+
+
+
+static int ptm_component_compare(const void *e1, const void *e2)
+{+ return ((const PTM_COMPONENT *)e1)->offset -
+ ((const PTM_COMPONENT *)e2)->offset;
+}
+
+
+
+static DUMB_IT_SIGDATA *it_ptm_load_sigdata(DUMBFILE *f)
+{+ DUMB_IT_SIGDATA *sigdata;
+
+ PTM_COMPONENT *component;
+ int n_components = 0;
+
+ int n;
+
+ unsigned char *buffer;
+
+ sigdata = malloc(sizeof(*sigdata));
+ if (!sigdata) return NULL;
+
+ /* Skip song name. */
+ dumbfile_getnc((char *)sigdata->name, 28, f);
+ sigdata->name[28] = 0;
+
+ if (dumbfile_getc(f) != 0x1A || dumbfile_igetw(f) != 0x203) {+ free(sigdata);
+ return NULL;
+ }
+
+ dumbfile_skip(f, 1);
+
+ sigdata->song_message = NULL;
+ sigdata->order = NULL;
+ sigdata->instrument = NULL;
+ sigdata->sample = NULL;
+ sigdata->pattern = NULL;
+ sigdata->midi = NULL;
+ sigdata->checkpoint = NULL;
+
+ sigdata->n_orders = dumbfile_igetw(f);
+ sigdata->n_instruments = 0;
+ sigdata->n_samples = dumbfile_igetw(f);
+ sigdata->n_patterns = dumbfile_igetw(f);
+
+ if (dumbfile_error(f) || sigdata->n_orders <= 0 || sigdata->n_samples > 255 || sigdata->n_patterns > 128) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ sigdata->n_pchannels = dumbfile_igetw(f);
+
+ if (dumbfile_igetw(f) != 0) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ dumbfile_skip(f, 2);
+
+ if (dumbfile_mgetl(f) != DUMB_ID('P','T','M','F')) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ dumbfile_skip(f, 16);
+
+ sigdata->order = malloc(sigdata->n_orders);
+ if (!sigdata->order) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ if (sigdata->n_samples) {+ sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
+ if (!sigdata->sample) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (n = 0; n < sigdata->n_samples; n++)
+ sigdata->sample[n].data = NULL;
+ }
+
+ if (sigdata->n_patterns) {+ sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
+ if (!sigdata->pattern) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (n = 0; n < sigdata->n_patterns; n++)
+ sigdata->pattern[n].entry = NULL;
+ }
+
+ /** WARNING: which ones? */
+ sigdata->flags = IT_STEREO | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_WAS_A_PTM;
+
+ sigdata->global_volume = 128;
+ sigdata->speed = 6;
+ sigdata->tempo = 125;
+ sigdata->mixing_volume = 48;
+
+ /* Panning positions for 32 channels */
+ {+ int i;
+ for (i = 0; i < 32; i++) {+ int c = dumbfile_getc(f);
+ if (c <= 15) {+ sigdata->channel_volume[i] = 64;
+ sigdata->channel_pan[i] = c;
+ } else {+ /** WARNING: this could be improved if we support channel muting... */
+ sigdata->channel_volume[i] = 0;
+ sigdata->channel_pan[i] = 7;
+ }
+ }
+ }
+
+ /* Orders, byte each, length = sigdata->n_orders (should be even) */
+ dumbfile_getnc((char *)sigdata->order, sigdata->n_orders, f);
+ sigdata->restart_position = 0;
+
+ component = malloc(768*sizeof(*component));
+ if (!component) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ if (dumbfile_seek(f, 352, DFS_SEEK_SET)) {+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ for (n = 0; n < sigdata->n_patterns; n++) {+ component[n_components].type = PTM_COMPONENT_PATTERN;
+ component[n_components].n = n;
+ component[n_components].offset = dumbfile_igetw(f) << 4;
+ n_components++;
+ }
+
+ if (dumbfile_seek(f, 608, DFS_SEEK_SET)) {+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ for (n = 0; n < sigdata->n_samples; n++) {+ if (it_ptm_read_sample_header(&sigdata->sample[n], &component[n_components].offset, f)) {+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ if (!(sigdata->sample[n].flags & IT_SAMPLE_EXISTS)) continue;
+ component[n_components].type = PTM_COMPONENT_SAMPLE;
+ component[n_components].n = n;
+ n_components++;
+ }
+
+ qsort(component, n_components, sizeof(PTM_COMPONENT), &ptm_component_compare);
+
+ {+ int i;
+ for (i = 0; i < 32; i++) {+ sigdata->channel_pan[i] -= (sigdata->channel_pan[i] & 8) >> 3;
+ sigdata->channel_pan[i] = ((int)sigdata->channel_pan[i] << 5) / 7;
+ if (sigdata->channel_pan[i] > 64) sigdata->channel_pan[i] = 64;
+ }
+ }
+
+ sigdata->pan_separation = 128;
+
+ if (dumbfile_error(f)) {+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ buffer = malloc(65536);
+ if (!buffer) {+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ for (n = 0; n < n_components; n++) {+ if (dumbfile_seek(f, component[n].offset, DFS_SEEK_SET)) {+ free(buffer);
+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ switch (component[n].type) {+
+ case PTM_COMPONENT_PATTERN:
+ if (it_ptm_read_pattern(&sigdata->pattern[component[n].n], f, buffer, (n + 1 < n_components) ? (component[n+1].offset - component[n].offset) : 0)) {+ free(buffer);
+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ break;
+
+ case PTM_COMPONENT_SAMPLE:
+ if (it_ptm_read_sample_data(&sigdata->sample[component[n].n], (n + 1 == n_components), f)) {+ free(buffer);
+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ }
+ }
+
+ free(buffer);
+ free(component);
+
+ _dumb_it_fix_invalid_orders(sigdata);
+
+ return sigdata;
+}
+
+DUH *dumb_read_ptm_quick(DUMBFILE *f)
+{+ sigdata_t *sigdata;
+
+ DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
+
+ sigdata = it_ptm_load_sigdata(f);
+
+ if (!sigdata)
+ return NULL;
+
+ {+ const char *tag[2][2];
+ tag[0][0] = "TITLE";
+ tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
+ tag[1][0] = "FORMAT";
+ tag[1][1] = "PTM";
+ return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
+ }
+}
--- /dev/null
+++ b/src/it/readriff.c
@@ -1,0 +1,57 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readriff.c - Code to read a RIFF module file / / \ \
+ * from memory. | < / \_
+ * | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+#include "internal/it.h"
+#include "internal/riff.h"
+
+
+DUH *dumb_read_riff_amff( DUMBFILE * f, struct riff * stream );
+DUH *dumb_read_riff_am( DUMBFILE * f, struct riff * stream );
+DUH *dumb_read_riff_dsmf( DUMBFILE * f, struct riff * stream );
+
+/* dumb_read_riff_quick(): reads a RIFF file into a DUH struct, returning a
+ * pointer to the DUH struct. When you have finished with it, you must pass
+ * the pointer to unload_duh() so that the memory can be freed.
+ */
+DUH *dumb_read_riff_quick( DUMBFILE * f )
+{+ DUH * duh;
+ struct riff * stream;
+ long size;
+
+ size = dumbfile_get_size(f);
+
+ stream = riff_parse( f, 0, size, 1 );
+ if ( ! stream ) stream = riff_parse( f, 0, size, 0 );
+
+ if ( ! stream ) return 0;
+
+ if ( stream->type == DUMB_ID( 'A', 'M', ' ', ' ' ) )
+ duh = dumb_read_riff_am( f, stream );
+ else if ( stream->type == DUMB_ID( 'A', 'M', 'F', 'F' ) )
+ duh = dumb_read_riff_amff( f, stream );
+ else if ( stream->type == DUMB_ID( 'D', 'S', 'M', 'F' ) )
+ duh = dumb_read_riff_dsmf( f, stream );
+ else duh = 0;
+
+ riff_free( stream );
+
+ return duh;
+}
--- /dev/null
+++ b/src/it/reads3m.c
@@ -1,0 +1,766 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * reads3m.c - Code to read a ScreamTracker 3 / / \ \
+ * module from an open file. | < / \_
+ * | \/ /\ /
+ * By entheh. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+// IT_STEREO... :o
+#include <stdlib.h>
+#include <string.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+
+static int it_s3m_read_sample_header(IT_SAMPLE *sample, long *offset, unsigned char *pack, int cwtv, DUMBFILE *f)
+{+ unsigned char type;
+ int flags;
+
+ type = dumbfile_getc(f);
+
+ dumbfile_getnc((char *)sample->filename, 12, f);
+ sample->filename[12] = 0;
+
+ if (type > 1) {+ /** WARNING: no adlib support */
+ dumbfile_skip(f, 3 + 12 + 1 + 1 + 2 + 2 + 2 + 12);
+ dumbfile_getnc((char *)sample->name, 28, f);
+ sample->name[28] = 0;
+ dumbfile_skip(f, 4);
+ sample->flags &= ~IT_SAMPLE_EXISTS;
+ return dumbfile_error(f);
+ }
+
+ *offset = dumbfile_getc(f) << 20;
+ *offset += dumbfile_igetw(f) << 4;
+
+ sample->length = dumbfile_igetl(f);
+ sample->loop_start = dumbfile_igetl(f);
+ sample->loop_end = dumbfile_igetl(f);
+
+ sample->default_volume = dumbfile_getc(f);
+
+ dumbfile_skip(f, 1);
+
+ flags = dumbfile_getc(f);
+
+ if (flags < 0 || (flags != 0 && flags != 4))
+ /* Sample is packed apparently (or error reading from file). We don't
+ * know how to read packed samples.
+ */
+ return -1;
+
+ *pack = flags;
+
+ flags = dumbfile_getc(f);
+
+ sample->C5_speed = dumbfile_igetl(f) << 1;
+
+ /* Skip four unused bytes and three internal variables. */
+ dumbfile_skip(f, 4+2+2+4);
+
+ dumbfile_getnc((char *)sample->name, 28, f);
+ sample->name[28] = 0;
+
+ if (type == 0 || sample->length <= 0) {+ /* Looks like no-existy. Anyway, there's for sure no 'SCRS' ... */
+ sample->flags &= ~IT_SAMPLE_EXISTS;
+ return dumbfile_error(f);
+ }
+
+ if (dumbfile_mgetl(f) != DUMB_ID('S','C','R','S'))+ return -1;
+
+ sample->global_volume = 64;
+
+ sample->flags = IT_SAMPLE_EXISTS;
+ if (flags & 1) sample->flags |= IT_SAMPLE_LOOP;
+
+ /* The ST3 TECH.DOC is unclear on this, but IMAGO Orpheus is not. Piece of crap. */
+
+ if (flags & 2) {+ sample->flags |= IT_SAMPLE_STEREO;
+
+ if ((cwtv & 0xF000) == 0x2000) {+ sample->length >>= 1;
+ sample->loop_start >>= 1;
+ sample->loop_end >>= 1;
+ }
+ }
+
+ if (flags & 4) {+ sample->flags |= IT_SAMPLE_16BIT;
+
+ if ((cwtv & 0xF000) == 0x2000) {+ sample->length >>= 1;
+ sample->loop_start >>= 1;
+ sample->loop_end >>= 1;
+ }
+ }
+
+ sample->default_pan = 0; // 0 = don't use, or 160 = centre?
+
+ if (sample->flags & IT_SAMPLE_LOOP) {+ if ((unsigned int)sample->loop_end > (unsigned int)sample->length)
+ /*sample->flags &= ~IT_SAMPLE_LOOP;*/
+ sample->loop_end = sample->length;
+ else if ((unsigned int)sample->loop_start >= (unsigned int)sample->loop_end)
+ sample->flags &= ~IT_SAMPLE_LOOP;
+ else
+ /* ScreamTracker seems not to save what comes after the loop end
+ * point, but rather to assume it is a duplicate of what comes at
+ * the loop start point. I am not completely sure of this though.
+ * It is easy to evade; simply truncate the sample.
+ */
+ sample->length = sample->loop_end;
+ }
+
+
+ //Do we need to set all these?
+ sample->vibrato_speed = 0;
+ sample->vibrato_depth = 0;
+ sample->vibrato_rate = 0;
+ sample->vibrato_waveform = IT_VIBRATO_SINE;
+ sample->finetune = 0;
+ sample->max_resampling_quality = -1;
+
+ return dumbfile_error(f);
+}
+
+
+
+static int it_s3m_read_sample_data(IT_SAMPLE *sample, int ffi, unsigned char pack, DUMBFILE *f)
+{+ long n;
+
+ long datasize = sample->length;
+ if (sample->flags & IT_SAMPLE_STEREO) datasize <<= 1;
+
+ sample->data = malloc(datasize * (sample->flags & IT_SAMPLE_16BIT ? 2 : 1));
+ if (!sample->data)
+ return -1;
+
+ if (pack == 4) {+ if (_dumb_it_read_sample_data_adpcm4(sample, f) < 0)
+ return -1;
+ }
+ else if (sample->flags & IT_SAMPLE_STEREO) {+ if (sample->flags & IT_SAMPLE_16BIT) {+ for (n = 0; n < datasize; n += 2)
+ ((short *)sample->data)[n] = dumbfile_igetw(f);
+ for (n = 1; n < datasize; n += 2)
+ ((short *)sample->data)[n] = dumbfile_igetw(f);
+ } else {+ for (n = 0; n < datasize; n += 2)
+ ((signed char *)sample->data)[n] = dumbfile_getc(f);
+ for (n = 1; n < datasize; n += 2)
+ ((signed char *)sample->data)[n] = dumbfile_getc(f);
+ }
+ } else if (sample->flags & IT_SAMPLE_16BIT)
+ for (n = 0; n < sample->length; n++)
+ ((short *)sample->data)[n] = dumbfile_igetw(f);
+ else
+ for (n = 0; n < sample->length; n++)
+ ((signed char *)sample->data)[n] = dumbfile_getc(f);
+
+ if (dumbfile_error(f))
+ return -1;
+
+ if (ffi != 1) {+ /* Convert to signed. */
+ if (sample->flags & IT_SAMPLE_16BIT)
+ for (n = 0; n < datasize; n++)
+ ((short *)sample->data)[n] ^= 0x8000;
+ else
+ for (n = 0; n < datasize; n++)
+ ((signed char *)sample->data)[n] ^= 0x80;
+ }
+
+ return 0;
+}
+
+
+
+static int it_s3m_read_pattern(IT_PATTERN *pattern, DUMBFILE *f, unsigned char *buffer)
+{+ int length;
+ int buflen = 0;
+ int bufpos = 0;
+
+ IT_ENTRY *entry;
+
+ unsigned char channel;
+
+ /* Haha, this is hilarious!
+ *
+ * Well, after some experimentation, it seems that different S3M writers
+ * define the format in different ways. The S3M docs say that the first
+ * two bytes hold the "length of [the] packed pattern", and the packed
+ * pattern data follow. Judging by the contents of ARMANI.S3M, packaged
+ * with ScreamTracker itself, the measure of length _includes_ the two
+ * bytes used to store the length; in other words, we should read
+ * (length - 2) more bytes. However, aryx.s3m, packaged with ModPlug
+ * Tracker, excludes these two bytes, so (length) more bytes must be
+ * read.
+ *
+ * Call me crazy, but I just find it insanely funny that the format was
+ * misunderstood in this way :D
+ *
+ * Now we can't just risk reading two extra bytes, because then we
+ * overshoot, and DUMBFILEs don't support backward seeking (for a good
+ * reason). Luckily, there is a way. We can read the data little by
+ * little, and stop when we have 64 rows in memory. Provided we protect
+ * against buffer overflow, this method should work with all sensibly
+ * written S3M files. If you find one for which it does not work, please
+ * let me know at entheh@users.sf.net so I can look at it.
+ *
+ * "for a good reason" ? What's this nonsense? -kode54
+ *
+ */
+
+ length = dumbfile_igetw(f);
+
+ if (dumbfile_error(f) || !length)
+ return -1;
+
+ pattern->n_rows = 0;
+ pattern->n_entries = 0;
+
+ /* Read in the pattern data, little by little, and work out how many
+ * entries we need room for. Sorry, but this is just so funny...
+ */
+ for (;;) {+ unsigned char b = buffer[buflen++] = dumbfile_getc(f);
+
+#if 1
+ static const unsigned char used[8] = {0, 2, 1, 3, 2, 4, 3, 5};+ channel = b & 31;
+ b >>= 5;
+ pattern->n_entries++;
+ if (b) {+ if (buflen + used[b] >= 65536) return -1;
+ if (buflen + used[b] <= length)
+ dumbfile_getnc((char *)buffer + buflen, used[b], f);
+ else
+ memset(buffer + buflen, 0, used[b]);
+ buflen += used[b];
+ } else {+ /* End of row */
+ if (++pattern->n_rows == 64) break;
+ if (buflen >= 65536) return -1;
+ }
+#else
+ if (b == 0) {+ /* End of row */
+ pattern->n_entries++;
+ if (++pattern->n_rows == 64) break;
+ if (buflen >= 65536) return -1;
+ } else {+ static const unsigned char used[8] = {0, 2, 1, 3, 2, 4, 3, 5};+ channel = b & 31;
+ b >>= 5;
+ if (b) {+ pattern->n_entries++;
+ if (buflen + used[b] >= 65536) return -1;
+ dumbfile_getnc(buffer + buflen, used[b], f);
+ buflen += used[b];
+ }
+ }
+#endif
+
+ /* We have ensured that buflen < 65536 at this point, so it is safe
+ * to iterate and read at least one more byte without checking.
+ * However, now would be a good time to check for errors reading from
+ * the file.
+ */
+
+ if (dumbfile_error(f))
+ return -1;
+
+ /* Great. We ran out of data, but there should be data for more rows.
+ * Fill the rest with null data...
+ */
+ if (buflen >= length && pattern->n_rows < 64)
+ {+ while (pattern->n_rows < 64)
+ {+ if (buflen >= 65536) return -1;
+ buffer[buflen++] = 0;
+ pattern->n_entries++;
+ pattern->n_rows++;
+ }
+ break;
+ }
+ }
+
+ pattern->entry = malloc(pattern->n_entries * sizeof(*pattern->entry));
+
+ if (!pattern->entry)
+ return -1;
+
+ entry = pattern->entry;
+
+ while (bufpos < buflen) {+ unsigned char b = buffer[bufpos++];
+
+#if 1
+ if (!(b & ~31))
+#else
+ if (b == 0)
+#endif
+ {+ /* End of row */
+ IT_SET_END_ROW(entry);
+ entry++;
+ continue;
+ }
+
+ channel = b & 31;
+
+ if (b & 224) {+ entry->mask = 0;
+ entry->channel = channel;
+
+ if (b & 32) {+ unsigned char n = buffer[bufpos++];
+ if (n != 255) {+ if (n == 254)
+ entry->note = IT_NOTE_CUT;
+ else
+ entry->note = (n >> 4) * 12 + (n & 15);
+ entry->mask |= IT_ENTRY_NOTE;
+ }
+
+ entry->instrument = buffer[bufpos++];
+ if (entry->instrument)
+ entry->mask |= IT_ENTRY_INSTRUMENT;
+ }
+
+ if (b & 64) {+ entry->volpan = buffer[bufpos++];
+ if (entry->volpan != 255)
+ entry->mask |= IT_ENTRY_VOLPAN;
+ }
+
+ if (b & 128) {+ entry->effect = buffer[bufpos++];
+ entry->effectvalue = buffer[bufpos++];
+ // XXX woot
+ if (entry->effect && entry->effect < IT_MIDI_MACRO /*!= 255*/) {+ entry->mask |= IT_ENTRY_EFFECT;
+ switch (entry->effect) {+ case IT_BREAK_TO_ROW:
+ entry->effectvalue -= (entry->effectvalue >> 4) * 6;
+ break;
+
+ case IT_SET_CHANNEL_VOLUME:
+ case IT_CHANNEL_VOLUME_SLIDE:
+ case IT_PANNING_SLIDE:
+ case IT_GLOBAL_VOLUME_SLIDE:
+ case IT_PANBRELLO:
+ case IT_MIDI_MACRO:
+ entry->mask &= ~IT_ENTRY_EFFECT;
+ break;
+
+ case IT_S:
+ switch (entry->effectvalue >> 4) {+ case IT_S_SET_PANBRELLO_WAVEFORM:
+ case IT_S_FINE_PATTERN_DELAY:
+ case IT_S7:
+ case IT_S_SET_SURROUND_SOUND:
+ case IT_S_SET_MIDI_MACRO:
+ entry->mask &= ~IT_ENTRY_EFFECT;
+ break;
+ }
+ break;
+ }
+ }
+ /** WARNING: ARGH! CONVERT TEH EFFECTS!@~ */
+ }
+
+ entry++;
+ }
+ }
+
+ ASSERT(entry == pattern->entry + pattern->n_entries);
+
+ return 0;
+}
+
+
+
+/** WARNING: this is duplicated in itread.c - also bad practice to use the same struct name unless they are unified in a header */
+/* Currently we assume the sample data are stored after the sample headers in
+ * module files. This assumption may be unjustified; let me know if you have
+ * trouble.
+ */
+
+#define S3M_COMPONENT_INSTRUMENT 1
+#define S3M_COMPONENT_PATTERN 2
+#define S3M_COMPONENT_SAMPLE 3
+
+typedef struct S3M_COMPONENT
+{+ unsigned char type;
+ unsigned char n;
+ long offset;
+ short sampfirst; /* component[sampfirst] = first sample data after this */
+ short sampnext; /* sampnext is used to create linked lists of sample data */
+}
+S3M_COMPONENT;
+
+
+
+static int s3m_component_compare(const void *e1, const void *e2)
+{+ return ((const S3M_COMPONENT *)e1)->offset -
+ ((const S3M_COMPONENT *)e2)->offset;
+}
+
+
+
+static DUMB_IT_SIGDATA *it_s3m_load_sigdata(DUMBFILE *f, int * cwtv)
+{+ DUMB_IT_SIGDATA *sigdata;
+
+ int flags, ffi;
+ int default_pan_present;
+
+ int master_volume;
+
+ unsigned char sample_pack[256];
+
+ S3M_COMPONENT *component;
+ int n_components = 0;
+
+ int n;
+
+ unsigned char *buffer;
+
+ sigdata = malloc(sizeof(*sigdata));
+ if (!sigdata) return NULL;
+
+ dumbfile_getnc((char *)sigdata->name, 28, f);
+ sigdata->name[28] = 0;
+
+ n = dumbfile_getc(f);
+
+ if (n != 0x1A && n != 0) {+ free(sigdata);
+ return NULL;
+ }
+
+ if (dumbfile_getc(f) != 16) {+ free(sigdata);
+ return NULL;
+ }
+
+ dumbfile_skip(f, 2);
+
+ sigdata->song_message = NULL;
+ sigdata->order = NULL;
+ sigdata->instrument = NULL;
+ sigdata->sample = NULL;
+ sigdata->pattern = NULL;
+ sigdata->midi = NULL;
+ sigdata->checkpoint = NULL;
+
+ sigdata->n_orders = dumbfile_igetw(f);
+ sigdata->n_instruments = 0;
+ sigdata->n_samples = dumbfile_igetw(f);
+ sigdata->n_patterns = dumbfile_igetw(f);
+
+ if (dumbfile_error(f) || sigdata->n_orders <= 0 || sigdata->n_samples > 256 || sigdata->n_patterns > 256) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ sigdata->order = malloc(sigdata->n_orders);
+ if (!sigdata->order) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ if (sigdata->n_samples) {+ sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
+ if (!sigdata->sample) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (n = 0; n < sigdata->n_samples; n++)
+ sigdata->sample[n].data = NULL;
+ }
+
+ if (sigdata->n_patterns) {+ sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
+ if (!sigdata->pattern) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (n = 0; n < sigdata->n_patterns; n++)
+ sigdata->pattern[n].entry = NULL;
+ }
+
+ flags = dumbfile_igetw(f);
+
+ *cwtv = dumbfile_igetw(f);
+
+ if (*cwtv == 0x1300) {+ /** WARNING: volume slides on every frame */
+ }
+
+ ffi = dumbfile_igetw(f);
+
+ /** WARNING: which ones? */
+ sigdata->flags = IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_WAS_AN_S3M;
+
+ if (dumbfile_mgetl(f) != DUMB_ID('S','C','R','M')) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ sigdata->global_volume = dumbfile_getc(f);
+ if ( !sigdata->global_volume || sigdata->global_volume > 64 ) sigdata->global_volume = 64;
+ sigdata->speed = dumbfile_getc(f);
+ if (sigdata->speed == 0) sigdata->speed = 6; // Should we? What about tempo?
+ sigdata->tempo = dumbfile_getc(f);
+ master_volume = dumbfile_getc(f); // 7 bits; +128 for stereo
+ sigdata->mixing_volume = master_volume & 127;
+
+ if (master_volume & 128) sigdata->flags |= IT_STEREO;
+
+ /* Skip GUS Ultra Click Removal byte. */
+ dumbfile_getc(f);
+
+ default_pan_present = dumbfile_getc(f);
+
+ dumbfile_skip(f, 8);
+
+ /* Skip Special Custom Data Pointer. */
+ /** WARNING: investigate this? */
+ dumbfile_igetw(f);
+
+ sigdata->n_pchannels = 0;
+ /* Channel settings for 32 channels, 255=unused, +128=disabled */
+ {+ int i;
+ int sep = (7 * dumb_it_default_panning_separation + 50) / 100;
+ for (i = 0; i < 32; i++) {+ int c = dumbfile_getc(f);
+ if (!(c & (128 | 16))) { /* +128=disabled, +16=Adlib */+ if (sigdata->n_pchannels < i + 1) sigdata->n_pchannels = i + 1;
+ sigdata->channel_volume[i] = 64;
+ sigdata->channel_pan[i] = c & 8 ? 7 + sep : 7 - sep;
+ /** WARNING: ah, but it should be 7 for mono... */
+ } else {+ /** WARNING: this could be improved if we support channel muting... */
+ sigdata->channel_volume[i] = 0;
+ sigdata->channel_pan[i] = 7;
+ }
+ }
+ }
+
+ /* Orders, byte each, length = sigdata->n_orders (should be even) */
+ dumbfile_getnc((char *)sigdata->order, sigdata->n_orders, f);
+ sigdata->restart_position = 0;
+
+ component = malloc(768*sizeof(*component));
+ if (!component) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ for (n = 0; n < sigdata->n_samples; n++) {+ component[n_components].type = S3M_COMPONENT_SAMPLE;
+ component[n_components].n = n;
+ component[n_components].offset = dumbfile_igetw(f) << 4;
+ component[n_components].sampfirst = -1;
+ n_components++;
+ }
+
+ for (n = 0; n < sigdata->n_patterns; n++) {+ long offset = dumbfile_igetw(f) << 4;
+ if (offset) {+ component[n_components].type = S3M_COMPONENT_PATTERN;
+ component[n_components].n = n;
+ component[n_components].offset = offset;
+ component[n_components].sampfirst = -1;
+ n_components++;
+ } else {+ /** WARNING: Empty 64-row pattern ... ? (this does happen!) */
+ sigdata->pattern[n].n_rows = 64;
+ sigdata->pattern[n].n_entries = 0;
+ }
+ }
+
+ qsort(component, n_components, sizeof(S3M_COMPONENT), &s3m_component_compare);
+
+ /* I found a really dumb S3M file that claimed to contain default pan
+ * data but didn't contain any. Programs would load it by reading part of
+ * the first instrument header, assuming the data to be default pan
+ * positions, and then rereading the instrument module. We cannot do this
+ * without obfuscating the file input model, so we insert an extra check
+ * here that we won't overrun the start of the first component.
+ */
+ if (default_pan_present == 252 && component[0].offset >= dumbfile_pos(f) + 32) {+ /* Channel default pan positions */
+ int i;
+ for (i = 0; i < 32; i++) {+ int c = dumbfile_getc(f);
+ if (c & 32)
+ sigdata->channel_pan[i] = c & 15;
+ }
+ }
+
+ {+ int i;
+ for (i = 0; i < 32; i++) {+ sigdata->channel_pan[i] -= (sigdata->channel_pan[i] & 8) >> 3;
+ sigdata->channel_pan[i] = ((int)sigdata->channel_pan[i] << 5) / 7;
+ }
+ }
+
+ sigdata->pan_separation = 128;
+
+ if (dumbfile_error(f)) {+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ buffer = malloc(65536);
+ if (!buffer) {+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ for (n = 0; n < n_components; n++) {+ long offset;
+ int m;
+
+ offset = 0;
+ if (dumbfile_seek(f, component[n].offset, DFS_SEEK_SET)) {+ free(buffer);
+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ switch (component[n].type) {+
+ case S3M_COMPONENT_PATTERN:
+ if (it_s3m_read_pattern(&sigdata->pattern[component[n].n], f, buffer)) {+ free(buffer);
+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ break;
+
+ case S3M_COMPONENT_SAMPLE:
+ if (it_s3m_read_sample_header(&sigdata->sample[component[n].n], &offset, &sample_pack[component[n].n], *cwtv, f)) {+ free(buffer);
+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ if (sigdata->sample[component[n].n].flags & IT_SAMPLE_EXISTS) {+ short *sample;
+
+ for (m = n + 1; m < n_components; m++)
+ if (component[m].offset > offset)
+ break;
+ m--;
+
+ sample = &component[m].sampfirst;
+
+ while (*sample >= 0 && component[*sample].offset <= offset)
+ sample = &component[*sample].sampnext;
+
+ component[n].sampnext = *sample;
+ *sample = n;
+
+ component[n].offset = offset;
+ }
+ }
+
+ m = component[n].sampfirst;
+
+ while (m >= 0) {+ // XXX
+ if (dumbfile_seek(f, component[m].offset, DFS_SEEK_SET)) {+ free(buffer);
+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ if (it_s3m_read_sample_data(&sigdata->sample[component[m].n], ffi, sample_pack[component[m].n], f)) {+ free(buffer);
+ free(component);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ m = component[m].sampnext;
+ }
+ }
+
+ free(buffer);
+ free(component);
+
+ _dumb_it_fix_invalid_orders(sigdata);
+
+ return sigdata;
+}
+
+static char hexdigit(int in)
+{+ if (in < 10) return in + '0';
+ else return in + 'A' - 10;
+}
+
+DUH *dumb_read_s3m_quick(DUMBFILE *f)
+{+ sigdata_t *sigdata;
+ int cwtv;
+
+ DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
+
+ sigdata = it_s3m_load_sigdata(f, &cwtv);
+
+ if (!sigdata)
+ return NULL;
+
+ {+ char version[8];
+ const char *tag[3][2];
+ tag[0][0] = "TITLE";
+ tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
+ tag[1][0] = "FORMAT";
+ tag[1][1] = "S3M";
+ tag[2][0] = "TRACKERVERSION";
+ version[0] = hexdigit((cwtv >> 8) & 15);
+ version[1] = '.';
+ version[2] = hexdigit((cwtv >> 4) & 15);
+ version[3] = hexdigit(cwtv & 15);
+ version[4] = 0;
+ tag[2][1] = (const char *) &version;
+ return make_duh(-1, 3, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
+ }
+}
--- /dev/null
+++ b/src/it/reads3m2.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * reads3m2.c - Function to read a ScreamTracker 3 / / \ \
+ * module from an open file and do an | < / \_
+ * initial run-through. | \/ /\ /
+ * \_ / > /
+ * Split off from reads3m.c by entheh. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+
+
+
+DUH *dumb_read_s3m(DUMBFILE *f)
+{+ DUH *duh = dumb_read_s3m_quick(f);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/readstm.c
@@ -1,0 +1,397 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readstm.c - Code to read a ScreamTracker 2 / / \ \
+ * module from an open file. | < / \_
+ * | \/ /\ /
+ * By Chris Moeller. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+// IT_STEREO... :o
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+
+#ifdef _MSC_VER
+ #define strnicmp _strnicmp
+#else
+ #if defined(unix) || defined(__unix__) || defined(__unix)
+ #include <strings.h>
+ #endif
+ #define strnicmp strncasecmp
+#endif
+
+static int it_stm_read_sample_header( IT_SAMPLE *sample, DUMBFILE *f, unsigned short *offset )
+{+ dumbfile_getnc( (char *) sample->filename, 12, f );
+ sample->filename[12] = 0;
+
+ memcpy( sample->name, sample->filename, 13 );
+
+ dumbfile_skip( f, 2 );
+
+ *offset = dumbfile_igetw( f );
+
+ sample->length = dumbfile_igetw( f );
+ sample->loop_start = dumbfile_igetw( f );
+ sample->loop_end = dumbfile_igetw( f );
+
+ sample->default_volume = dumbfile_getc( f );
+
+ dumbfile_skip( f, 1 );
+
+ sample->C5_speed = dumbfile_igetw( f ) << 3;
+
+ dumbfile_skip( f, 6 );
+
+ if ( sample->length < 4 || !sample->default_volume ) {+ /* Looks like no-existy. */
+ sample->flags &= ~IT_SAMPLE_EXISTS;
+ sample->length = 0;
+ *offset = 0;
+ return dumbfile_error( f );
+ }
+
+ sample->flags = IT_SAMPLE_EXISTS;
+ sample->global_volume = 64;
+ sample->default_pan = 0; // 0 = don't use, or 160 = centre?
+
+ if ( ( sample->loop_start < sample->length ) &&
+ ( sample->loop_end > sample->loop_start ) &&
+ ( sample->loop_end != 0xFFFF ) ) {+ sample->flags |= IT_SAMPLE_LOOP;
+ if ( sample->loop_end > sample->length ) sample->loop_end = sample->length;
+ }
+
+ //Do we need to set all these?
+ sample->vibrato_speed = 0;
+ sample->vibrato_depth = 0;
+ sample->vibrato_rate = 0;
+ sample->vibrato_waveform = IT_VIBRATO_SINE;
+ sample->finetune = 0;
+ sample->max_resampling_quality = -1;
+
+ return dumbfile_error(f);
+}
+
+static int it_stm_read_sample_data( IT_SAMPLE *sample, DUMBFILE * f )
+{+ if ( ! sample->length ) return 0;
+
+ sample->data = malloc( sample->length );
+ if (!sample->data)
+ return -1;
+
+ dumbfile_getnc( sample->data, sample->length, f );
+
+ return dumbfile_error( f );
+}
+
+static int it_stm_read_pattern( IT_PATTERN *pattern, DUMBFILE *f, unsigned char *buffer )
+{+ int pos;
+ int channel;
+ int row;
+ IT_ENTRY *entry;
+
+ pattern->n_rows = 64;
+
+ if ( dumbfile_getnc( (char *) buffer, 64 * 4 * 4, f ) != 64 * 4 * 4 )
+ return -1;
+
+ pattern->n_entries = 64;
+ pos = 0;
+ for ( row = 0; row < 64; ++row ) {+ for ( channel = 0; channel < 4; ++channel ) {+ if ( buffer[ pos + 0 ] | buffer[ pos + 1 ] | buffer[ pos + 2 ] | buffer[ pos + 3 ] )
+ ++pattern->n_entries;
+ pos += 4;
+ }
+ }
+
+ pattern->entry = malloc( pattern->n_entries * sizeof( *pattern->entry ) );
+ if ( !pattern->entry )
+ return -1;
+
+ entry = pattern->entry;
+ pos = 0;
+ for ( row = 0; row < 64; ++row ) {+ for ( channel = 0; channel < 4; ++channel ) {+ if ( buffer[ pos + 0 ] | buffer[ pos + 1 ] | buffer[ pos + 2 ] | buffer[ pos + 3 ] ) {+ unsigned note;
+ note = buffer[ pos + 0 ];
+ entry->channel = channel;
+ entry->mask = 0;
+ entry->instrument = buffer[ pos + 1 ] >> 3;
+ entry->volpan = ( buffer[ pos + 1 ] & 0x07 ) + ( buffer[ pos + 2 ] >> 1 );
+ entry->effect = buffer[ pos + 2 ] & 0x0F;
+ entry->effectvalue = buffer[ pos + 3 ];
+ if ( entry->instrument && entry->instrument < 32 )
+ entry->mask |= IT_ENTRY_INSTRUMENT;
+ if ( note < 251 ) {+ entry->mask |= IT_ENTRY_NOTE;
+ entry->note = ( note >> 4 ) * 12 + ( note & 0x0F );
+ }
+ if ( entry->volpan <= 64 )
+ entry->mask |= IT_ENTRY_VOLPAN;
+ entry->mask |= IT_ENTRY_EFFECT;
+ switch ( entry->effect ) {+ case IT_SET_SPEED:
+ /* taken care of in the renderer */
+ break;
+
+ case IT_BREAK_TO_ROW:
+ entry->effectvalue -= (entry->effectvalue >> 4) * 6;
+ break;
+
+ case IT_JUMP_TO_ORDER:
+ case IT_VOLUME_SLIDE:
+ case IT_PORTAMENTO_DOWN:
+ case IT_PORTAMENTO_UP:
+ case IT_TONE_PORTAMENTO:
+ case IT_VIBRATO:
+ case IT_TREMOR:
+ case IT_ARPEGGIO:
+ case IT_VOLSLIDE_VIBRATO:
+ case IT_VOLSLIDE_TONEPORTA:
+ break;
+
+ default:
+ entry->mask &= ~IT_ENTRY_EFFECT;
+ break;
+ }
+ if ( entry->mask ) ++entry;
+ }
+ pos += 4;
+ }
+ IT_SET_END_ROW(entry);
+ ++entry;
+ }
+
+ pattern->n_entries = entry - pattern->entry;
+
+ return 0;
+}
+
+
+
+static DUMB_IT_SIGDATA *it_stm_load_sigdata(DUMBFILE *f, int * version)
+{+ DUMB_IT_SIGDATA *sigdata;
+
+ char tracker_name[ 8 ];
+
+ unsigned short sample_offset[ 31 ];
+
+ int n;
+
+ sigdata = malloc(sizeof(*sigdata));
+ if (!sigdata) return NULL;
+
+ /* Skip song name. */
+ dumbfile_getnc((char *)sigdata->name, 20, f);
+ sigdata->name[20] = 0;
+
+ dumbfile_getnc(tracker_name, 8, f);
+ n = dumbfile_getc(f);
+ if ( n != 0x02 && n != 0x1A && n != 0x1B )
+ {+ free( sigdata );
+ return NULL;
+ }
+ if ( dumbfile_getc(f) != 2 ) /* only support modules */
+ {+ free( sigdata );
+ return NULL;
+ }
+ if ( strnicmp( tracker_name, "!Scream!", 8 ) &&
+ strnicmp( tracker_name, "BMOD2STM", 8 ) &&
+ strnicmp( tracker_name, "WUZAMOD!", 8 ) )
+ {+ free( sigdata );
+ return NULL;
+ }
+
+ *version = dumbfile_mgetw(f);
+
+ sigdata->song_message = NULL;
+ sigdata->order = NULL;
+ sigdata->instrument = NULL;
+ sigdata->sample = NULL;
+ sigdata->pattern = NULL;
+ sigdata->midi = NULL;
+ sigdata->checkpoint = NULL;
+
+ sigdata->n_instruments = 0;
+ sigdata->n_samples = 31;
+ sigdata->n_pchannels = 4;
+
+ sigdata->tempo = 125;
+ sigdata->mixing_volume = 48;
+ sigdata->pan_separation = 128;
+
+ /** WARNING: which ones? */
+ sigdata->flags = IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_WAS_AN_S3M | IT_WAS_AN_STM | IT_STEREO;
+
+ n = dumbfile_getc(f);
+ if ( n < 32 ) n = 32;
+ sigdata->speed = n;
+ sigdata->n_patterns = dumbfile_getc(f);
+ sigdata->global_volume = dumbfile_getc(f) << 1;
+ if ( sigdata->global_volume > 128 ) sigdata->global_volume = 128;
+
+ dumbfile_skip(f, 13);
+
+ if ( dumbfile_error(f) || sigdata->n_patterns < 1 || sigdata->n_patterns > 99 ) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ sigdata->sample = malloc(sigdata->n_samples * sizeof(*sigdata->sample));
+ if (!sigdata->sample) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (n = 0; n < sigdata->n_samples; n++)
+ sigdata->sample[n].data = NULL;
+
+ if (sigdata->n_patterns) {+ sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
+ if (!sigdata->pattern) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (n = 0; n < sigdata->n_patterns; n++)
+ sigdata->pattern[n].entry = NULL;
+ }
+
+ memset( sigdata->channel_volume, 64, 4 );
+ n = 32 * dumb_it_default_panning_separation / 100;
+ sigdata->channel_pan[ 0 ] = 32 + n;
+ sigdata->channel_pan[ 1 ] = 32 - n;
+ sigdata->channel_pan[ 2 ] = 32 + n;
+ sigdata->channel_pan[ 3 ] = 32 - n;
+
+ for ( n = 0; n < sigdata->n_samples; ++n ) {+ if ( it_stm_read_sample_header( &sigdata->sample[ n ], f, &sample_offset[ n ] ) ) {+ _dumb_it_unload_sigdata( sigdata );
+ return NULL;
+ }
+ }
+
+ sigdata->order = malloc( 128 );
+ if ( !sigdata->order ) {+ _dumb_it_unload_sigdata( sigdata );
+ return NULL;
+ }
+
+ /* Orders, byte each, length = sigdata->n_orders (should be even) */
+ dumbfile_getnc( (char *) sigdata->order, *version >= 0x200 ? 128 : 64, f );
+ if (*version < 0x200) memset( sigdata->order + 64, 0xFF, 64 );
+ sigdata->restart_position = 0;
+
+ for ( n = 127; n >= 0; --n ) {+ if ( sigdata->order[ n ] < sigdata->n_patterns ) break;
+ }
+ if ( n < 0 ) {+ _dumb_it_unload_sigdata( sigdata );
+ return NULL;
+ }
+ sigdata->n_orders = n + 1;
+
+ for ( n = 0; n < 128; ++n ) {+ if ( sigdata->order[ n ] >= 99 ) sigdata->order[ n ] = 0xFF;
+ }
+
+ if ( sigdata->n_patterns ) {+ unsigned char * buffer = malloc( 64 * 4 * 4 );
+ if ( ! buffer ) {+ _dumb_it_unload_sigdata( sigdata );
+ return NULL;
+ }
+ for ( n = 0; n < sigdata->n_patterns; ++n ) {+ if ( it_stm_read_pattern( &sigdata->pattern[ n ], f, buffer ) ) {+ free( buffer );
+ _dumb_it_unload_sigdata( sigdata );
+ return NULL;
+ }
+ }
+ free( buffer );
+ }
+
+ for ( n = 0; n < sigdata->n_samples; ++n ) {+ if ( sample_offset[ n ] )
+ {+ if ( dumbfile_seek( f, sample_offset[ n ] * 16, DFS_SEEK_SET ) ||
+ it_stm_read_sample_data( &sigdata->sample[ n ], f ) ) {+ _dumb_it_unload_sigdata( sigdata );
+ return NULL;
+ }
+ }
+ else
+ {+ sigdata->sample[ n ].flags = 0;
+ sigdata->sample[ n ].length = 0;
+ }
+ }
+
+ _dumb_it_fix_invalid_orders(sigdata);
+
+ return sigdata;
+}
+
+DUH *dumb_read_stm_quick(DUMBFILE *f)
+{+ sigdata_t *sigdata;
+ int ver;
+
+ DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
+
+ sigdata = it_stm_load_sigdata(f , &ver);
+
+ if (!sigdata)
+ return NULL;
+
+ {+ char version[16];
+ const char *tag[2][2];
+ tag[0][0] = "TITLE";
+ tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
+ tag[1][0] = "FORMAT";
+ version[0] = 'S';
+ version[1] = 'T';
+ version[2] = 'M';
+ version[3] = ' ';
+ version[4] = 'v';
+ version[5] = '0' + ((ver >> 8) & 15);
+ version[6] = '.';
+ if ((ver & 255) > 99)
+ {+ version[7] = '0' + ((ver & 255) / 100 );
+ version[8] = '0' + (((ver & 255) / 10) % 10);
+ version[9] = '0' + ((ver & 255) % 10);
+ version[10] = 0;
+ }
+ else
+ {+ version[7] = '0' + ((ver & 255) / 10);
+ version[8] = '0' + ((ver & 255) % 10);
+ version[9] = 0;
+ }
+ tag[1][1] = (const char *) &version;
+ return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
+ }
+}
--- /dev/null
+++ b/src/it/readstm2.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readstm2.c - Function to read a ScreamTracker 2 / / \ \
+ * module from an open file and do an | < / \_
+ * initial run-through. | \/ /\ /
+ * \_ / > /
+ * By Chris Moeller. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+
+
+
+DUH *dumb_read_stm(DUMBFILE *f)
+{+ DUH *duh = dumb_read_stm_quick(f);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/readxm.c
@@ -1,0 +1,1428 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readxm.c - Code to read a Fast Tracker II / / \ \
+ * module from an open file. | < / \_
+ * | \/ /\ /
+ * By Julien Cugniere. Some bits of code taken \_ / > /
+ * from reads3m.c. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+#include "internal/dumbfile.h"
+
+
+
+/** TODO:
+
+ * XM_TREMOLO doesn't sound quite right...
+ * XM_SET_ENVELOPE_POSITION todo.
+
+ * VIBRATO conversion needs to be checked (sample/effect/volume). Plus check
+ that effect memory is correct when using XM_VOLSLIDE_VIBRATO.
+ - sample vibrato (instrument vibrato) is now handled correctly. - entheh
+
+ * XM_E_SET_VIBRATO/TREMOLO_CONTROL: effectvalue&4 -> don't retrig wave when
+ a new instrument is played. In retrigger_note()?. Is it worth implementing?
+
+ * Lossy fadeout approximation. 0..31 converted to 0 --> won't fade at all.
+
+ * Replace DUMB's sawtooth by ramp_down/ramp_up. Update XM loader.
+
+ * A lot of things need to be reset when the end of the song is reached.
+
+ * It seems that IT and XM don't behave the same way when dealing with
+ mixed loops. When IT encounters multiple SBx (x>0) commands on the same
+ row, it decrements the loop count for all, but only execute the loop of
+ the last one (highest channel). FT2 only decrements the loop count of the
+ last one. Not that I know of any modules using so convoluted combinations!
+
+ * Maybe we could remove patterns that don't appear in the order table ? Or
+ provide a function to "optimize" a DUMB_IT_SIGDATA ?
+
+*/
+
+
+
+#define XM_LINEAR_FREQUENCY 1 /* otherwise, use amiga slides */
+
+#define XM_ENTRY_PACKED 128
+#define XM_ENTRY_NOTE 1
+#define XM_ENTRY_INSTRUMENT 2
+#define XM_ENTRY_VOLUME 4
+#define XM_ENTRY_EFFECT 8
+#define XM_ENTRY_EFFECTVALUE 16
+
+#define XM_NOTE_OFF 97
+
+#define XM_ENVELOPE_ON 1
+#define XM_ENVELOPE_SUSTAIN 2
+#define XM_ENVELOPE_LOOP 4
+
+#define XM_SAMPLE_NO_LOOP 0
+#define XM_SAMPLE_FORWARD_LOOP 1
+#define XM_SAMPLE_PINGPONG_LOOP 2
+#define XM_SAMPLE_16BIT 16
+#define XM_SAMPLE_STEREO 32
+
+#define XM_VIBRATO_SINE 0
+#define XM_VIBRATO_SQUARE 1
+#define XM_VIBRATO_RAMP_DOWN 2
+#define XM_VIBRATO_RAMP_UP 3
+
+
+
+/* Probably useless :) */
+const char xm_convert_vibrato[] = {+ IT_VIBRATO_SINE,
+ IT_VIBRATO_XM_SQUARE,
+ IT_VIBRATO_RAMP_DOWN,
+ IT_VIBRATO_RAMP_UP,
+ IT_VIBRATO_RANDOM
+};
+
+
+
+#define XM_MAX_SAMPLES_PER_INSTRUMENT 16
+
+
+
+/* Extra data that doesn't fit inside IT_INSTRUMENT */
+typedef struct XM_INSTRUMENT_EXTRA
+{+ int n_samples;
+ int vibrato_type;
+ int vibrato_sweep; /* 0-0xFF */
+ int vibrato_depth; /* 0-0x0F */
+ int vibrato_speed; /* 0-0x3F */
+ int sample_header_size;
+}
+XM_INSTRUMENT_EXTRA;
+
+
+
+/* Trims off trailing white space, usually added by the tracker on file creation
+ */
+static void trim_whitespace(char *ptr, size_t size)
+{+ char *p = ptr + size - 1;
+ while (p >= ptr && *p <= 0x20) *p-- = '\0';
+}
+
+/* Frees the original block if it can't resize it or if size is 0, and acts
+ * as malloc if ptr is NULL.
+ */
+static void *safe_realloc(void *ptr, size_t size)
+{+ if (ptr == NULL)
+ return malloc(size);
+
+ if (size == 0) {+ free(ptr);
+ return NULL;
+ } else {+ void *new_block = realloc(ptr, size);
+ if (!new_block)
+ free(ptr);
+ return new_block;
+ }
+}
+
+
+
+/* The interpretation of the XM volume column is left to the player. Here, we
+ * just filter bad values.
+ */
+// This function is so tiny now, should we inline it?
+static void it_xm_convert_volume(int volume, IT_ENTRY *entry)
+{+ entry->mask |= IT_ENTRY_VOLPAN;
+ entry->volpan = volume;
+
+ switch (volume >> 4) {+ case 0xA: /* set vibrato speed */
+ case 0xB: /* vibrato */
+ case 0xF: /* tone porta */
+ case 0x6: /* vol slide up */
+ case 0x7: /* vol slide down */
+ case 0x8: /* fine vol slide up */
+ case 0x9: /* fine vol slide down */
+ case 0xC: /* set panning */
+ case 0xD: /* pan slide left */
+ case 0xE: /* pan slide right */
+ case 0x1: /* set volume */
+ case 0x2: /* set volume */
+ case 0x3: /* set volume */
+ case 0x4: /* set volume */
+ break;
+
+ case 0x5:
+ if (volume == 0x50)
+ break; /* set volume */
+ /* else fall through */
+
+ default:
+ entry->mask &= ~IT_ENTRY_VOLPAN;
+ break;
+ }
+}
+
+
+
+static int it_xm_read_pattern(IT_PATTERN *pattern, DUMBFILE *f, int n_channels, unsigned char *buffer, int version)
+{+ int size;
+ int pos;
+ int channel;
+ int row;
+ int effect, effectvalue;
+ IT_ENTRY *entry;
+
+ /* pattern header size */
+ if (dumbfile_igetl(f) != ( version == 0x0102 ? 0x08 : 0x09 ) ) {+ TRACE("XM error: unexpected pattern header size\n");+ return -1;
+ }
+
+ /* pattern data packing type */
+ if (dumbfile_getc(f) != 0) {+ TRACE("XM error: unexpected pattern packing type\n");+ return -1;
+ }
+
+ if ( version == 0x0102 )
+ pattern->n_rows = dumbfile_getc(f) + 1;
+ else
+ pattern->n_rows = dumbfile_igetw(f); /* 1..256 */
+ size = dumbfile_igetw(f);
+ pattern->n_entries = 0;
+
+ if (dumbfile_error(f))
+ return -1;
+
+ if (size == 0)
+ return 0;
+
+ if (size > 1280 * n_channels) {+ TRACE("XM error: pattern data size > %d bytes\n", 1280 * n_channels);+ return -1;
+ }
+
+ if (dumbfile_getnc((char *)buffer, size, f) < size)
+ return -1;
+
+ /* compute number of entries */
+ pattern->n_entries = 0;
+ pos = channel = row = 0;
+ while (pos < size) {+ if (!(buffer[pos] & XM_ENTRY_PACKED) || (buffer[pos] & 31))
+ pattern->n_entries++;
+
+ channel++;
+ if (channel >= n_channels) {+ channel = 0;
+ row++;
+ pattern->n_entries++;
+ }
+
+ if (buffer[pos] & XM_ENTRY_PACKED) {+ static const char offset[] = { 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4,+ 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5 };
+ pos += 1 + offset[buffer[pos] & 31];
+ } else {+ pos += 5;
+ }
+ }
+
+ if (row > pattern->n_rows) {+ TRACE("XM error: wrong number of rows in pattern data\n");+ return -1;
+ }
+
+ /* Whoops, looks like some modules may be short, a few channels, maybe even rows... */
+
+ while (row < pattern->n_rows)
+ {+ pattern->n_entries++;
+ row++;
+ }
+
+ pattern->entry = malloc(pattern->n_entries * sizeof(*pattern->entry));
+ if (!pattern->entry)
+ return -1;
+
+ /* read the entries */
+ entry = pattern->entry;
+ pos = channel = row = 0;
+ while (pos < size) {+ unsigned char mask;
+
+ if (buffer[pos] & XM_ENTRY_PACKED)
+ mask = buffer[pos++] & 31;
+ else
+ mask = 31;
+
+ if (mask) {+ ASSERT(entry < pattern->entry + pattern->n_entries);
+
+ entry->channel = channel;
+ entry->mask = 0;
+
+ if (mask & XM_ENTRY_NOTE) {+ int note = buffer[pos++]; /* 1-96 <=> C0-B7 */
+ entry->note = (note == XM_NOTE_OFF) ? (IT_NOTE_OFF) : (note-1);
+ entry->mask |= IT_ENTRY_NOTE;
+ }
+
+ if (mask & XM_ENTRY_INSTRUMENT) {+ entry->instrument = buffer[pos++]; /* 1-128 */
+ entry->mask |= IT_ENTRY_INSTRUMENT;
+ }
+
+ if (mask & XM_ENTRY_VOLUME)
+ it_xm_convert_volume(buffer[pos++], entry);
+
+ effect = effectvalue = 0;
+ if (mask & XM_ENTRY_EFFECT) effect = buffer[pos++];
+ if (mask & XM_ENTRY_EFFECTVALUE) effectvalue = buffer[pos++];
+ _dumb_it_xm_convert_effect(effect, effectvalue, entry, 0);
+
+ entry++;
+ }
+
+ channel++;
+ if (channel >= n_channels) {+ channel = 0;
+ row++;
+ IT_SET_END_ROW(entry);
+ entry++;
+ }
+ }
+
+ while (row < pattern->n_rows)
+ {+ row++;
+ IT_SET_END_ROW(entry);
+ entry++;
+ }
+
+ return 0;
+}
+
+
+
+static int it_xm_make_envelope(IT_ENVELOPE *envelope, const unsigned short *data, int y_offset)
+{+ int i, pos, val;
+
+ if (envelope->n_nodes > 12) {+ /* XXX
+ TRACE("XM error: wrong number of envelope nodes (%d)\n", envelope->n_nodes);+ envelope->n_nodes = 0;
+ return -1; */
+ envelope->n_nodes = 12;
+ }
+
+ if (envelope->sus_loop_start >= 12) envelope->flags &= ~IT_ENVELOPE_SUSTAIN_LOOP;
+ if (envelope->loop_end >= 12) envelope->loop_end = 0;
+ if (envelope->loop_start >= envelope->loop_end) envelope->flags &= ~IT_ENVELOPE_LOOP_ON;
+
+ pos = 0;
+ for (i = 0; i < envelope->n_nodes; i++) {+ envelope->node_t[i] = data[pos++];
+ val = data[pos++];
+ if (val > 64) {+ TRACE("XM error: out-of-range envelope node (node_y[%d]=%d)\n", i, val);+ /* FT2 seems to simply clip the value */
+ val = 64;
+ }
+ envelope->node_y[i] = (signed char)(val + y_offset);
+ }
+
+ return 0;
+}
+
+
+
+typedef struct LIMITED_XM LIMITED_XM;
+
+struct LIMITED_XM
+{+ unsigned char *buffered;
+ long ptr, limit, allocated;
+ DUMBFILE *remaining;
+};
+
+static int limit_xm_resize(void *f, long n)
+{+ DUMBFILE *df = f;
+ LIMITED_XM *lx = df->file;
+ if (lx->buffered || n) {+ if (n > lx->allocated) {+ unsigned char *buffered = realloc( lx->buffered, n );
+ if ( !buffered ) return -1;
+ lx->buffered = buffered;
+ memset( buffered + lx->allocated, 0, n - lx->allocated );
+ lx->allocated = n;
+ }
+ if ( dumbfile_getnc( (char *)lx->buffered, n, lx->remaining ) < n ) return -1;
+ } else if (!n) {+ if ( lx->buffered ) free( lx->buffered );
+ lx->buffered = NULL;
+ lx->allocated = 0;
+ }
+ lx->limit = n;
+ lx->ptr = 0;
+ return 0;
+}
+
+static int limit_xm_skip_end(void *f, long n)
+{+ DUMBFILE *df = f;
+ LIMITED_XM *lx = df->file;
+ return dumbfile_skip( lx->remaining, n );
+}
+
+static int limit_xm_skip(void *f, long n)
+{+ LIMITED_XM *lx = f;
+ lx->ptr += n;
+ return 0;
+}
+
+
+
+static int limit_xm_getc(void *f)
+{+ LIMITED_XM *lx = f;
+ if (lx->ptr >= lx->allocated) {+ return 0;
+ }
+ return lx->buffered[lx->ptr++];
+}
+
+
+
+static long limit_xm_getnc(char *ptr, long n, void *f)
+{+ LIMITED_XM *lx = f;
+ int left;
+ left = lx->allocated - lx->ptr;
+ if (n > left) {+ if (left > 0) {+ memcpy( ptr, lx->buffered + lx->ptr, left );
+ memset( ptr + left, 0, n - left );
+ } else {+ memset( ptr, 0, n );
+ }
+ } else {+ memcpy( ptr, lx->buffered + lx->ptr, n );
+ }
+ lx->ptr += n;
+ return n;
+}
+
+
+
+static void limit_xm_close(void *f)
+{+ LIMITED_XM *lx = f;
+ if (lx->buffered) free(lx->buffered);
+ /* Do NOT close lx->remaining */
+ free(f);
+}
+
+
+/* These two can be stubs since this implementation doesn't use seeking */
+static int limit_xm_seek(void *f, long n)
+{+ (void)f;
+ (void)n;
+ return 1;
+}
+
+
+
+static long limit_xm_get_size(void *f)
+{+ (void)f;
+ return 0;
+}
+
+
+
+DUMBFILE_SYSTEM limit_xm_dfs = {+ NULL,
+ &limit_xm_skip,
+ &limit_xm_getc,
+ &limit_xm_getnc,
+ &limit_xm_close,
+ &limit_xm_seek,
+ &limit_xm_get_size
+};
+
+static DUMBFILE *dumbfile_limit_xm(DUMBFILE *f)
+{+ LIMITED_XM * lx = malloc(sizeof(*lx));
+ lx->remaining = f;
+ lx->buffered = NULL;
+ lx->ptr = 0;
+ lx->limit = 0;
+ lx->allocated = 0;
+ return dumbfile_open_ex( lx, &limit_xm_dfs );
+}
+
+static int it_xm_read_instrument(IT_INSTRUMENT *instrument, XM_INSTRUMENT_EXTRA *extra, DUMBFILE *f)
+{+ unsigned long size, bytes_read;
+ unsigned short vol_points[24];
+ unsigned short pan_points[24];
+ int i, type;
+ const unsigned long max_size = 4 + 22 + 1 + 2 + 4 + 96 + 48 + 48 + 1 * 14 + 2 + 2;
+ unsigned long skip_end = 0;
+
+ /* Header size. Tends to be more than the actual size of the structure.
+ * So unread bytes must be skipped before reading the first sample
+ * header.
+ */
+
+ if ( limit_xm_resize( f, 4 ) < 0 ) return -1;
+
+ size = dumbfile_igetl(f);
+
+ if ( size == 0 ) size = max_size;
+ else if ( size > max_size )
+ {+ skip_end = size - max_size;
+ size = max_size;
+ }
+
+ if ( limit_xm_resize( f, size - 4 ) < 0 ) return -1;
+
+ dumbfile_getnc((char *)instrument->name, 22, f);
+ instrument->name[22] = 0;
+ trim_whitespace((char *)instrument->name, 22);
+ instrument->filename[0] = 0;
+ dumbfile_skip(f, 1); /* Instrument type. Should be 0, but seems random. */
+ extra->n_samples = dumbfile_igetw(f);
+
+ if (dumbfile_error(f) || (unsigned int)extra->n_samples > XM_MAX_SAMPLES_PER_INSTRUMENT)
+ return -1;
+
+ bytes_read = 4 + 22 + 1 + 2;
+
+ if (extra->n_samples) {+ /* sample header size */
+ /*i = dumbfile_igetl(f);
+ if (!i || i > 0x28) i = 0x28;*/
+ dumbfile_skip(f, 4);
+ i = 0x28;
+ extra->sample_header_size = i;
+
+ /* sample map */
+ for (i = 0; i < 96; i++) {+ instrument->map_sample[i] = dumbfile_getc(f) + 1;
+ instrument->map_note[i] = i;
+ }
+
+ if (dumbfile_error(f))
+ return 1;
+
+ /* volume/panning envelopes */
+ for (i = 0; i < 24; i++)
+ vol_points[i] = dumbfile_igetw(f);
+ for (i = 0; i < 24; i++)
+ pan_points[i] = dumbfile_igetw(f);
+
+ instrument->volume_envelope.n_nodes = dumbfile_getc(f);
+ instrument->pan_envelope.n_nodes = dumbfile_getc(f);
+
+ if (dumbfile_error(f))
+ return -1;
+
+ instrument->volume_envelope.sus_loop_start = dumbfile_getc(f);
+ instrument->volume_envelope.loop_start = dumbfile_getc(f);
+ instrument->volume_envelope.loop_end = dumbfile_getc(f);
+
+ instrument->pan_envelope.sus_loop_start = dumbfile_getc(f);
+ instrument->pan_envelope.loop_start = dumbfile_getc(f);
+ instrument->pan_envelope.loop_end = dumbfile_getc(f);
+
+ /* The envelope handler for XM files won't use sus_loop_end. */
+
+ type = dumbfile_getc(f);
+ instrument->volume_envelope.flags = 0;
+ if ((type & XM_ENVELOPE_ON) && instrument->volume_envelope.n_nodes)
+ instrument->volume_envelope.flags |= IT_ENVELOPE_ON;
+ if (type & XM_ENVELOPE_LOOP) instrument->volume_envelope.flags |= IT_ENVELOPE_LOOP_ON;
+#if 1
+ if (type & XM_ENVELOPE_SUSTAIN) instrument->volume_envelope.flags |= IT_ENVELOPE_SUSTAIN_LOOP;
+#else // This is now handled in itrender.c
+ /* let's avoid fading out when reaching the last envelope node */
+ if (!(type & XM_ENVELOPE_LOOP)) {+ instrument->volume_envelope.loop_start = instrument->volume_envelope.n_nodes-1;
+ instrument->volume_envelope.loop_end = instrument->volume_envelope.n_nodes-1;
+ }
+ instrument->volume_envelope.flags |= IT_ENVELOPE_LOOP_ON;
+#endif
+
+ type = dumbfile_getc(f);
+ instrument->pan_envelope.flags = 0;
+ if ((type & XM_ENVELOPE_ON) && instrument->pan_envelope.n_nodes)
+ instrument->pan_envelope.flags |= IT_ENVELOPE_ON;
+ if (type & XM_ENVELOPE_LOOP) instrument->pan_envelope.flags |= IT_ENVELOPE_LOOP_ON; // should this be here?
+ if (type & XM_ENVELOPE_SUSTAIN) instrument->pan_envelope.flags |= IT_ENVELOPE_SUSTAIN_LOOP;
+
+ if (it_xm_make_envelope(&instrument->volume_envelope, vol_points, 0) != 0) {+ TRACE("XM error: volume envelope\n");+ if (instrument->volume_envelope.flags & IT_ENVELOPE_ON) return -1;
+ }
+
+ if (it_xm_make_envelope(&instrument->pan_envelope, pan_points, -32) != 0) {+ TRACE("XM error: pan envelope\n");+ if (instrument->pan_envelope.flags & IT_ENVELOPE_ON) return -1;
+ }
+
+ instrument->pitch_envelope.flags = 0;
+
+ extra->vibrato_type = dumbfile_getc(f);
+ extra->vibrato_sweep = dumbfile_getc(f);
+ extra->vibrato_depth = dumbfile_getc(f);
+ extra->vibrato_speed = dumbfile_getc(f);
+
+ if (dumbfile_error(f) || extra->vibrato_type > 4) // XXX
+ return -1;
+
+ /** WARNING: lossy approximation */
+ instrument->fadeout = (dumbfile_igetw(f)*128 + 64)/0xFFF;
+
+ dumbfile_skip(f, 2); /* reserved */
+
+ bytes_read += 4 + 96 + 48 + 48 + 14*1 + 2 + 2;
+ } else
+ for (i = 0; i < 96; i++)
+ instrument->map_sample[i] = 0;
+
+ if (size > bytes_read && dumbfile_skip(f, size - bytes_read))
+ return -1;
+
+ if (skip_end && limit_xm_skip_end(f, skip_end))
+ return -1;
+
+ instrument->new_note_action = NNA_NOTE_CUT;
+ instrument->dup_check_type = DCT_OFF;
+ instrument->dup_check_action = DCA_NOTE_CUT;
+ instrument->pp_separation = 0;
+ instrument->pp_centre = 60; /* C-5 */
+ instrument->global_volume = 128;
+ instrument->default_pan = 32;
+ instrument->random_volume = 0;
+ instrument->random_pan = 0;
+ instrument->filter_cutoff = 0;
+ instrument->filter_resonance = 0;
+
+ return 0;
+}
+
+
+
+/* I (entheh) have two XM files saved by a very naughty program. After a
+ * 16-bit sample, it saved a rogue byte. The length of the sample was indeed
+ * an odd number, incremented to include the rogue byte.
+ *
+ * In this function we are converting sample lengths and loop points so they
+ * are measured in samples. This means we forget about the extra bytes, and
+ * they don't get skipped. So we fail trying to read the next instrument.
+ *
+ * To get around this, this function returns the number of rogue bytes that
+ * won't be accounted for by reading sample->length samples. It returns a
+ * negative number on failure.
+ */
+static int it_xm_read_sample_header(IT_SAMPLE *sample, DUMBFILE *f)
+{+ int type;
+ int relative_note_number; /* relative to C4 */
+ int finetune;
+ int roguebytes;
+ int roguebytesmask;
+ int reserved;
+
+ sample->length = dumbfile_igetl(f);
+ sample->loop_start = dumbfile_igetl(f);
+ sample->loop_end = sample->loop_start + dumbfile_igetl(f);
+ sample->global_volume = 64;
+ sample->default_volume = dumbfile_getc(f);
+ finetune = (signed char)dumbfile_getc(f); /* -128..127 <=> -1 semitone .. +127/128 of a semitone */
+ type = dumbfile_getc(f);
+ sample->default_pan = dumbfile_getc(f); /* 0-255 */
+ relative_note_number = (signed char)dumbfile_getc(f);
+
+ reserved = dumbfile_getc(f);
+
+ dumbfile_getnc((char *)sample->name, 22, f);
+ sample->name[22] = 0;
+ trim_whitespace((char *)sample->name, 22);
+
+ sample->filename[0] = 0;
+
+ if (dumbfile_error(f))
+ return -1;
+
+ sample->C5_speed = (long)(16726.0*pow(DUMB_SEMITONE_BASE, relative_note_number) /**pow(DUMB_PITCH_BASE, )*/ );
+ sample->finetune = finetune*2;
+
+ sample->flags = IT_SAMPLE_EXISTS;
+
+ if (reserved == 0xAD &&
+ (!(type & (XM_SAMPLE_16BIT | XM_SAMPLE_STEREO))))
+ {+ /* F U Olivier Lapicque */
+ roguebytes = 4;
+ roguebytesmask = 4 << 2;
+ }
+ else
+ {+ roguebytes = (int)sample->length;
+ roguebytesmask = 3;
+ }
+
+ if (type & XM_SAMPLE_16BIT) {+ sample->flags |= IT_SAMPLE_16BIT;
+ sample->length >>= 1;
+ sample->loop_start >>= 1;
+ sample->loop_end >>= 1;
+ } else
+ roguebytesmask >>= 1;
+
+ if (type & XM_SAMPLE_STEREO) {+ sample->flags |= IT_SAMPLE_STEREO;
+ sample->length >>= 1;
+ sample->loop_start >>= 1;
+ sample->loop_end >>= 1;
+ } else
+ roguebytesmask >>= 1;
+
+ roguebytes &= roguebytesmask;
+
+ if ((unsigned int)sample->loop_start < (unsigned int)sample->loop_end) {+ if (type & XM_SAMPLE_FORWARD_LOOP) sample->flags |= IT_SAMPLE_LOOP;
+ if (type & XM_SAMPLE_PINGPONG_LOOP) sample->flags |= IT_SAMPLE_LOOP | IT_SAMPLE_PINGPONG_LOOP;
+ }
+
+ if (sample->length <= 0)
+ sample->flags &= ~IT_SAMPLE_EXISTS;
+ else if ((unsigned int)sample->loop_end > (unsigned int)sample->length)
+ sample->flags &= ~IT_SAMPLE_LOOP;
+ else if ((unsigned int)sample->loop_start >= (unsigned int)sample->loop_end)
+ sample->flags &= ~IT_SAMPLE_LOOP;
+
+ return roguebytes;
+}
+
+
+
+static int it_xm_read_sample_data(IT_SAMPLE *sample, unsigned char roguebytes, DUMBFILE *f)
+{+ int old;
+ long i;
+ long truncated_size;
+ int n_channels;
+ long datasize;
+
+ if (!(sample->flags & IT_SAMPLE_EXISTS))
+ return dumbfile_skip(f, roguebytes);
+
+ /* let's get rid of the sample data coming after the end of the loop */
+ if ((sample->flags & IT_SAMPLE_LOOP) && sample->loop_end < sample->length && roguebytes != 4) {+ truncated_size = sample->length - sample->loop_end;
+ sample->length = sample->loop_end;
+ } else {+ truncated_size = 0;
+ }
+
+ n_channels = sample->flags & IT_SAMPLE_STEREO ? 2 : 1;
+ datasize = sample->length * n_channels;
+
+ sample->data = malloc(datasize * (sample->flags & IT_SAMPLE_16BIT ? 2 : 1));
+ if (!sample->data)
+ return -1;
+
+ if (roguebytes == 4)
+ {+ if (_dumb_it_read_sample_data_adpcm4(sample, f) < 0)
+ return -1;
+ roguebytes = 0;
+ }
+ else
+ {+ /* sample data is stored as signed delta values */
+ old = 0;
+ if (sample->flags & IT_SAMPLE_16BIT)
+ for (i = 0; i < sample->length; i++)
+ ((short *)sample->data)[i*n_channels] = old += dumbfile_igetw(f);
+ else
+ for (i = 0; i < sample->length; i++)
+ ((signed char *)sample->data)[i*n_channels] = old += dumbfile_getc(f);
+ }
+
+ /* skip truncated data */
+ dumbfile_skip(f, (sample->flags & IT_SAMPLE_16BIT) ? (2*truncated_size) : (truncated_size));
+
+ if (sample->flags & IT_SAMPLE_STEREO) {+ old = 0;
+ if (sample->flags & IT_SAMPLE_16BIT)
+ for (i = 1; i < datasize; i += 2)
+ ((short *)sample->data)[i] = old += dumbfile_igetw(f);
+ else
+ for (i = 1; i < datasize; i += 2)
+ ((signed char *)sample->data)[i] = old += dumbfile_getc(f);
+
+ /* skip truncated data */
+ dumbfile_skip(f, (sample->flags & IT_SAMPLE_16BIT) ? (2*truncated_size) : (truncated_size));
+ }
+
+ dumbfile_skip(f, roguebytes);
+
+ if (dumbfile_error(f))
+ return -1;
+
+ return 0;
+}
+
+
+
+/* "Real programmers don't document. If it was hard to write,
+ * it should be hard to understand."
+ *
+ * (Never trust the documentation provided with a tracker.
+ * Real files are the only truth...)
+ */
+static DUMB_IT_SIGDATA *it_xm_load_sigdata(DUMBFILE *f, int * version)
+{+ DUMB_IT_SIGDATA *sigdata;
+ char id_text[18];
+
+ int header_size;
+ int flags;
+ int n_channels;
+ int total_samples;
+ int i, j;
+
+ /* check ID text */
+ if (dumbfile_getnc(id_text, 17, f) < 17)
+ return NULL;
+ id_text[17] = 0;
+ if (strcmp(id_text, "Extended Module: ") != 0) {+ TRACE("XM error: Not an Extended Module\n");+ return NULL;
+ }
+
+ sigdata = malloc(sizeof(*sigdata));
+ if (!sigdata)
+ return NULL;
+
+ /* song name */
+ if (dumbfile_getnc((char *)sigdata->name, 20, f) < 20) {+ free(sigdata);
+ return NULL;
+ }
+ sigdata->name[20] = 0;
+ trim_whitespace((char *)sigdata->name, 20);
+
+ if (dumbfile_getc(f) != 0x1A) {+ TRACE("XM error: 0x1A not found\n");+ free(sigdata);
+ return NULL;
+ }
+
+ /* tracker name */
+ if (dumbfile_skip(f, 20)) {+ free(sigdata);
+ return NULL;
+ }
+
+ /* version number */
+ * version = dumbfile_igetw(f);
+ if (* version > 0x0104 || * version < 0x0102) {+ TRACE("XM error: wrong format version\n");+ free(sigdata);
+ return NULL;
+ }
+
+ /*
+ ------------------
+ --- Header ---
+ ------------------
+ */
+
+ /* header size */
+ header_size = dumbfile_igetl(f);
+ if (header_size < (4 + 2*8 + 1) || header_size > 0x114) {+ TRACE("XM error: unexpected header size\n");+ free(sigdata);
+ return NULL;
+ }
+
+ sigdata->song_message = NULL;
+ sigdata->order = NULL;
+ sigdata->instrument = NULL;
+ sigdata->sample = NULL;
+ sigdata->pattern = NULL;
+ sigdata->midi = NULL;
+ sigdata->checkpoint = NULL;
+
+ sigdata->n_samples = 0;
+ sigdata->n_orders = dumbfile_igetw(f);
+ sigdata->restart_position = dumbfile_igetw(f);
+ n_channels = dumbfile_igetw(f); /* max 32 but we'll be lenient */
+ sigdata->n_pchannels = n_channels;
+ sigdata->n_patterns = dumbfile_igetw(f);
+ sigdata->n_instruments = dumbfile_igetw(f); /* max 128 */ /* XXX upped to 256 */
+ flags = dumbfile_igetw(f);
+ sigdata->speed = dumbfile_igetw(f);
+ if (sigdata->speed == 0) sigdata->speed = 6; // Should we? What about tempo?
+ sigdata->tempo = dumbfile_igetw(f);
+
+ // FT2 always clips restart position against the song length
+ if (sigdata->restart_position > sigdata->n_orders)
+ sigdata->restart_position = sigdata->n_orders;
+ // And FT2 starts playback on order 0, regardless of length,
+ // and only checks if the next order is greater than or equal
+ // to this, not the current pattern. Work around this with
+ // DUMB's playback core by overriding a zero length with one.
+ if (sigdata->n_orders == 0)
+ sigdata->n_orders = 1;
+
+ /* sanity checks */
+ // XXX
+ i = header_size - 4 - 2 * 8; /* Maximum number of orders expected */
+ if (dumbfile_error(f) || sigdata->n_orders <= 0 || sigdata->n_orders > i || sigdata->n_patterns > 256 || sigdata->n_instruments > 256 || n_channels > DUMB_IT_N_CHANNELS) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ //if (sigdata->restart_position >= sigdata->n_orders)
+ //sigdata->restart_position = 0;
+
+ /* order table */
+ sigdata->order = malloc(sigdata->n_orders*sizeof(*sigdata->order));
+ if (!sigdata->order) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ dumbfile_getnc((char *)sigdata->order, sigdata->n_orders, f);
+ dumbfile_skip(f, i - sigdata->n_orders);
+
+ if (dumbfile_error(f)) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ if ( * version > 0x103 ) {+ /*
+ --------------------
+ --- Patterns ---
+ --------------------
+ */
+
+ sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
+ if (!sigdata->pattern) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (i = 0; i < sigdata->n_patterns; i++)
+ sigdata->pattern[i].entry = NULL;
+
+ {+ unsigned char *buffer = malloc(1280 * n_channels); /* 256 rows * 5 bytes */
+ if (!buffer) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (i = 0; i < sigdata->n_patterns; i++) {+ if (it_xm_read_pattern(&sigdata->pattern[i], f, n_channels, buffer, * version) != 0) {+ free(buffer);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ }
+ free(buffer);
+ }
+
+ /*
+ -----------------------------------
+ --- Instruments and Samples ---
+ -----------------------------------
+ */
+
+ sigdata->instrument = malloc(sigdata->n_instruments * sizeof(*sigdata->instrument));
+ if (!sigdata->instrument) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ /* With XM, samples are not global, they're part of an instrument. In a
+ * file, each instrument is stored with its samples. Because of this, I
+ * don't know how to find how many samples are present in the file. Thus
+ * I have to do n_instruments reallocation on sigdata->sample.
+ * Looking at FT2, it doesn't seem possible to have more than 16 samples
+ * per instrument (even though n_samples is stored as 2 bytes). So maybe
+ * we could allocate a 128*16 array of samples, and shrink it back to the
+ * correct size when we know it?
+ * Alternatively, I could allocate samples by blocks of N (still O(n)),
+ * or double the number of allocated samples when I need more (O(log n)).
+ */
+ total_samples = 0;
+ sigdata->sample = NULL;
+
+ for (i = 0; i < sigdata->n_instruments; i++) {+ XM_INSTRUMENT_EXTRA extra;
+
+ DUMBFILE * lf = dumbfile_limit_xm( f );
+ if ( !lf ) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ if (it_xm_read_instrument(&sigdata->instrument[i], &extra, lf) < 0) {+ // XXX
+ if ( ! i )
+ {+ TRACE("XM error: instrument %d\n", i+1);+ dumbfile_close( lf );
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ else
+ {+ dumbfile_close( lf );
+ sigdata->n_instruments = i;
+ break;
+ }
+ }
+
+ if (extra.n_samples) {+ unsigned char roguebytes[XM_MAX_SAMPLES_PER_INSTRUMENT];
+
+ /* adjust instrument sample map (make indices absolute) */
+ for (j = 0; j < 96; j++)
+ sigdata->instrument[i].map_sample[j] += total_samples;
+
+ sigdata->sample = safe_realloc(sigdata->sample, sizeof(*sigdata->sample)*(total_samples+extra.n_samples));
+ if (!sigdata->sample) {+ dumbfile_close( lf );
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (j = total_samples; j < total_samples+extra.n_samples; j++)
+ sigdata->sample[j].data = NULL;
+
+ if ( limit_xm_resize( lf, 0 ) < 0 ) {+ dumbfile_close( lf );
+ _dumb_it_unload_sigdata( sigdata );
+ return NULL;
+ }
+
+ /* read instrument's samples */
+ for (j = 0; j < extra.n_samples; j++) {+ IT_SAMPLE *sample = &sigdata->sample[total_samples+j];
+ int b;
+ if ( limit_xm_resize( lf, extra.sample_header_size ) < 0 ) {+ dumbfile_close( lf );
+ _dumb_it_unload_sigdata( sigdata );
+ return NULL;
+ }
+ b = it_xm_read_sample_header(sample, lf);
+ if (b < 0) {+ dumbfile_close( lf );
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ roguebytes[j] = b;
+ // Any reason why these can't be set inside it_xm_read_sample_header()?
+ sample->vibrato_speed = extra.vibrato_speed;
+ sample->vibrato_depth = extra.vibrato_depth;
+ sample->vibrato_rate = extra.vibrato_sweep;
+ /* Rate and sweep don't match, but the difference is
+ * accounted for in itrender.c.
+ */
+ sample->vibrato_waveform = xm_convert_vibrato[extra.vibrato_type];
+ sample->max_resampling_quality = -1;
+ }
+ for (j = 0; j < extra.n_samples; j++) {+ if (it_xm_read_sample_data(&sigdata->sample[total_samples+j], roguebytes[j], f) != 0) {+ dumbfile_close( lf );
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ }
+ total_samples += extra.n_samples;
+ }
+
+ dumbfile_close( lf );
+ }
+
+ sigdata->n_samples = total_samples;
+ } else {+ // ahboy! old layout!
+ // first instruments and sample headers, then patterns, then sample data!
+
+ /*
+ -----------------------------------
+ --- Instruments and Samples ---
+ -----------------------------------
+ */
+
+ unsigned char * roguebytes = malloc( sigdata->n_instruments * XM_MAX_SAMPLES_PER_INSTRUMENT );
+ if (!roguebytes) {+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ sigdata->instrument = malloc(sigdata->n_instruments * sizeof(*sigdata->instrument));
+ if (!sigdata->instrument) {+ free(roguebytes);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ total_samples = 0;
+ sigdata->sample = NULL;
+
+ for (i = 0; i < sigdata->n_instruments; i++) {+ XM_INSTRUMENT_EXTRA extra;
+
+ DUMBFILE * lf = dumbfile_limit_xm( f );
+ if ( !lf ) {+ free(roguebytes);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ if (it_xm_read_instrument(&sigdata->instrument[i], &extra, lf) < 0) {+ TRACE("XM error: instrument %d\n", i+1);+ dumbfile_close(lf);
+ free(roguebytes);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+
+ if (extra.n_samples) {+ /* adjust instrument sample map (make indices absolute) */
+ for (j = 0; j < 96; j++)
+ sigdata->instrument[i].map_sample[j] += total_samples;
+
+ sigdata->sample = safe_realloc(sigdata->sample, sizeof(*sigdata->sample)*(total_samples+extra.n_samples));
+ if (!sigdata->sample) {+ dumbfile_close( lf );
+ free(roguebytes);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (j = total_samples; j < total_samples+extra.n_samples; j++)
+ sigdata->sample[j].data = NULL;
+
+ if ( limit_xm_resize( lf, 0 ) < 0 ) {+ dumbfile_close( lf );
+ free( roguebytes );
+ _dumb_it_unload_sigdata( sigdata );
+ return NULL;
+ }
+
+ /* read instrument's samples */
+ for (j = 0; j < extra.n_samples; j++) {+ IT_SAMPLE *sample = &sigdata->sample[total_samples+j];
+ int b;
+ if ( limit_xm_resize( lf, extra.sample_header_size ) < 0 ) {+ dumbfile_close( lf );
+ free( roguebytes );
+ _dumb_it_unload_sigdata( sigdata );
+ return NULL;
+ }
+ b = it_xm_read_sample_header(sample, lf);
+ if (b < 0) {+ free(roguebytes);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ roguebytes[total_samples+j] = b;
+ // Any reason why these can't be set inside it_xm_read_sample_header()?
+ sample->vibrato_speed = extra.vibrato_speed;
+ sample->vibrato_depth = extra.vibrato_depth;
+ sample->vibrato_rate = extra.vibrato_sweep;
+ /* Rate and sweep don't match, but the difference is
+ * accounted for in itrender.c.
+ */
+ sample->vibrato_waveform = xm_convert_vibrato[extra.vibrato_type];
+ sample->max_resampling_quality = -1;
+ }
+ total_samples += extra.n_samples;
+ }
+
+ dumbfile_close( lf );
+ }
+
+ sigdata->n_samples = total_samples;
+
+ /*
+ --------------------
+ --- Patterns ---
+ --------------------
+ */
+
+ sigdata->pattern = malloc(sigdata->n_patterns * sizeof(*sigdata->pattern));
+ if (!sigdata->pattern) {+ free(roguebytes);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (i = 0; i < sigdata->n_patterns; i++)
+ sigdata->pattern[i].entry = NULL;
+
+ {+ unsigned char *buffer = malloc(1280 * n_channels); /* 256 rows * 5 bytes */
+ if (!buffer) {+ free(roguebytes);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ for (i = 0; i < sigdata->n_patterns; i++) {+ if (it_xm_read_pattern(&sigdata->pattern[i], f, n_channels, buffer, * version) != 0) {+ free(buffer);
+ free(roguebytes);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ }
+ free(buffer);
+ }
+
+ // and now we load the sample data
+ for (j = 0; j < total_samples; j++) {+ if (it_xm_read_sample_data(&sigdata->sample[j], roguebytes[j], f) != 0) {+ free(roguebytes);
+ _dumb_it_unload_sigdata(sigdata);
+ return NULL;
+ }
+ }
+
+ free(roguebytes);
+ }
+
+
+ sigdata->flags = IT_WAS_AN_XM | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX | IT_STEREO | IT_USE_INSTRUMENTS;
+ // Are we OK with IT_COMPATIBLE_GXX off?
+ //
+ // When specifying note + instr + tone portamento, and an old note is still playing (even after note off):
+ // - If Compatible Gxx is on, the new note will be triggered only if the instrument _changes_.
+ // - If Compatible Gxx is off, the new note will always be triggered, provided the instrument is specified.
+ // - FT2 seems to do the latter (unconfirmed).
+
+ // Err, wait. XM playback has its own code. The change made to the IT
+ // playbackc code didn't affect XM playback. Forget this then. There's
+ // still a bug in XM playback though, and it'll need some investigation...
+ // tomorrow...
+
+ // UPDATE: IT_COMPATIBLE_GXX is required to be on, so that tone porta has
+ // separate memory from portamento.
+
+ if (flags & XM_LINEAR_FREQUENCY)
+ sigdata->flags |= IT_LINEAR_SLIDES;
+
+ sigdata->global_volume = 128;
+ sigdata->mixing_volume = 48;
+ sigdata->pan_separation = 128;
+
+ memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
+ memset(sigdata->channel_pan, 32, DUMB_IT_N_CHANNELS);
+
+ _dumb_it_fix_invalid_orders(sigdata);
+
+ return sigdata;
+}
+
+
+
+#if 0 // no fucking way, dude!
+
+/* The length returned is the time required to play from the beginning of the
+ * file to the last row of the last order (which is when the player will
+ * loop). Depending on the song, the sound might stop sooner.
+ * Due to fixed point roundoffs, I think this is only reliable to the second.
+ * Full precision could be achieved by using a double during the computation,
+ * or maybe a LONG_LONG.
+ */
+long it_compute_length(const DUMB_IT_SIGDATA *sigdata)
+{+ IT_PATTERN *pattern;
+ int tempo, speed;
+ int loop_start[IT_N_CHANNELS];
+ char loop_count[IT_N_CHANNELS];
+ int order, entry;
+ int row_first_entry = 0;
+ int jump, jump_dest;
+ int delay, fine_delay;
+ int i;
+ long t;
+
+ if (!sigdata)
+ return 0;
+
+ tempo = sigdata->tempo;
+ speed = sigdata->speed;
+ order = entry = 0;
+ jump = jump_dest = 0;
+ t = 0;
+
+ /* for each PATTERN */
+ for (order = 0; order < sigdata->n_orders; order++) {+
+ if (sigdata->order[order] == IT_ORDER_END) break;
+ if (sigdata->order[order] == IT_ORDER_SKIP) continue;
+
+ for (i = 0; i < IT_N_CHANNELS; i++)
+ loop_count[i] = -1;
+
+ pattern = &sigdata->pattern[ sigdata->order[order] ];
+ entry = 0;
+ if (jump == IT_BREAK_TO_ROW) {+ int row = 0;
+ while (row < jump_dest)
+ if (pattern->entry[entry++].channel >= IT_N_CHANNELS)
+ row++;
+ }
+
+ /* for each ROW */
+ while (entry < pattern->n_entries) {+ row_first_entry = entry;
+ delay = fine_delay = 0;
+ jump = 0;
+
+ /* for each note NOTE */
+ while (entry < pattern->n_entries && pattern->entry[entry].channel < IT_N_CHANNELS) {+ int value = pattern->entry[entry].effectvalue;
+ int channel = pattern->entry[entry].channel;
+
+ switch (pattern->entry[entry].effect) {+
+ case IT_SET_SPEED: speed = value; break;
+
+ case IT_JUMP_TO_ORDER:
+ if (value <= order) /* infinite loop */
+ return 0;
+ jump = IT_JUMP_TO_ORDER;
+ jump_dest = value;
+ break;
+
+ case IT_BREAK_TO_ROW:
+ jump = IT_BREAK_TO_ROW;
+ jump_dest = value;
+ break;
+
+ case IT_S:
+ switch (HIGH(value)) {+ case IT_S_PATTERN_DELAY: delay = LOW(value); break;
+ case IT_S_FINE_PATTERN_DELAY: fine_delay = LOW(value); break;
+ case IT_S_PATTERN_LOOP:
+ if (LOW(value) == 0) {+ loop_start[channel] = row_first_entry;
+ } else {+ if (loop_count[channel] == -1)
+ loop_count[channel] = LOW(value);
+
+ if (loop_count[channel]) {+ jump = IT_S_PATTERN_LOOP;
+ jump_dest = loop_start[channel];
+ }
+ loop_count[channel]--;
+ }
+ break;
+ }
+ break;
+
+ case IT_SET_SONG_TEMPO:
+ switch (HIGH(value)) { /* slides happen every non-row frames */+ case 0: tempo = tempo - LOW(value)*(speed-1); break;
+ case 1: tempo = tempo + LOW(value)*(speed-1); break;
+ default: tempo = value;
+ }
+ tempo = MID(32, tempo, 255);
+ break;
+ }
+
+ entry++;
+ }
+
+ /* end of ROW */
+ entry++;
+ t += TICK_TIME_DIVIDEND * (speed*(1+delay) + fine_delay) / tempo;
+
+ if (jump == IT_JUMP_TO_ORDER) {+ order = jump_dest - 1;
+ break;
+ } else if (jump == IT_BREAK_TO_ROW)
+ break;
+ else if (jump == IT_S_PATTERN_LOOP)
+ entry = jump_dest - 1;
+ }
+
+ /* end of PATTERN */
+ }
+
+ return t;
+}
+
+#endif /* 0 */
+
+
+static char hexdigit(int in)
+{+ if (in < 10) return in + '0';
+ else return in + 'A' - 10;
+}
+
+DUH *dumb_read_xm_quick(DUMBFILE *f)
+{+ sigdata_t *sigdata;
+ int ver;
+
+ DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
+
+ sigdata = it_xm_load_sigdata(f, &ver);
+
+ if (!sigdata)
+ return NULL;
+
+ {+ char version[16];
+ const char *tag[2][2];
+ tag[0][0] = "TITLE";
+ tag[0][1] = (const char *)(((DUMB_IT_SIGDATA *)sigdata)->name);
+ tag[1][0] = "FORMAT";
+ version[0] = 'X';
+ version[1] = 'M';
+ version[2] = ' ';
+ version[3] = 'v';
+ version[4] = hexdigit( ( ver >> 8 ) & 15 );
+ version[5] = '.';
+ version[6] = hexdigit( ( ver >> 4 ) & 15 );
+ version[7] = hexdigit( ver & 15 );
+ version[8] = 0;
+ tag[1][1] = ( const char * ) & version;
+ return make_duh(-1, 2, (const char *const (*)[2])tag, 1, &descptr, &sigdata);
+ }
+}
--- /dev/null
+++ b/src/it/readxm2.c
@@ -1,0 +1,29 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * readxm2.c - Function to read a Fast Tracker II / / \ \
+ * module from an open file and do an | < / \_
+ * initial run-through. | \/ /\ /
+ * \_ / > /
+ * Split off from readxm.c by entheh. | \ / /
+ * | ' /
+ * \__/
+ */
+
+#include "dumb.h"
+
+
+
+DUH *dumb_read_xm(DUMBFILE *f)
+{+ DUH *duh = dumb_read_xm_quick(f);
+ dumb_it_do_initial_runthrough(duh);
+ return duh;
+}
--- /dev/null
+++ b/src/it/xmeffect.c
@@ -1,0 +1,245 @@
+/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * xmeffect.c - Code for converting MOD/XM / / \ \
+ * effects to IT effects. | < / \_
+ * | \/ /\ /
+ * By Julien Cugniere. Ripped out of readxm.c \_ / > /
+ * by entheh. | \ / /
+ * | ' /
+ * \__/
+ */
+
+
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+
+#if 0
+unsigned char **_dumb_malloc2(int w, int h)
+{+ unsigned char **line = malloc(h * sizeof(*line));
+ int i;
+ if (!line) return NULL;
+
+ line[0] = malloc(w * h * sizeof(*line[0]));
+ if (!line[0]) {+ free(line);
+ return NULL;
+ }
+
+ for (i = 1; i < h; i++)
+ line[i] = line[i-1] + w;
+
+ memset(line[0], 0, w*h);
+
+ return line;
+}
+
+
+
+void _dumb_free2(unsigned char **line)
+{+ if (line) {+ if (line[0])
+ free(line[0]);
+ free(line);
+ }
+}
+
+
+
+/* Effects having a memory. 2 means that the two parts of the effectvalue
+ * should be handled separately.
+ */
+static const char xm_has_memory[] = {+/* 0 1 2 3 4 5 6 7 8 9 A B C D (E) F G H K L P R T (X) */
+ 0, 1, 1, 1, 2, 1, 1, 2, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0,
+
+/* E0 E1 E2 E3 E4 E5 E6 E7 E9 EA EB EC ED EE X1 X2 */
+ 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+#endif
+
+
+
+/* Effects marked with 'special' are handled specifically in itrender.c */
+void _dumb_it_xm_convert_effect(int effect, int value, IT_ENTRY *entry, int mod)
+{+const int log = 0;
+
+ if ((!effect && !value) || (effect >= XM_N_EFFECTS))
+ return;
+
+if (log) printf("%c%02X", (effect<10)?('0'+effect):('A'+effect-10), value);+
+ /* Linearisation of the effect number... */
+ if (effect == XM_E) {+ effect = EBASE + HIGH(value);
+ value = LOW(value);
+ } else if (effect == XM_X) {+ effect = XBASE + HIGH(value);
+ value = LOW(value);
+ }
+
+if (log) printf(" - %2d %02X", effect, value);+
+#if 0 // This should be handled in itrender.c!
+ /* update effect memory */
+ switch (xm_has_memory[effect]) {+ case 1:
+ if (!value)
+ value = memory[entry->channel][effect];
+ else
+ memory[entry->channel][effect] = value;
+ break;
+
+ case 2:
+ if (!HIGH(value))
+ SET_HIGH(value, HIGH(memory[entry->channel][effect]));
+ else
+ SET_HIGH(memory[entry->channel][effect], HIGH(value));
+
+ if (!LOW(value))
+ SET_LOW(value, LOW(memory[entry->channel][effect]));
+ else
+ SET_LOW(memory[entry->channel][effect], LOW(value));
+ break;
+ }
+#endif
+
+ /* convert effect */
+ entry->mask |= IT_ENTRY_EFFECT;
+ switch (effect) {+
+ case XM_APPREGIO: effect = IT_ARPEGGIO; break;
+ case XM_VIBRATO: effect = IT_VIBRATO; break;
+ case XM_TONE_PORTAMENTO: effect = IT_TONE_PORTAMENTO; break;
+ case XM_TREMOLO: effect = IT_TREMOLO; break;
+ case XM_SET_PANNING: effect = IT_SET_PANNING; break;
+ case XM_SAMPLE_OFFSET: effect = IT_SET_SAMPLE_OFFSET; break;
+ case XM_POSITION_JUMP: effect = IT_JUMP_TO_ORDER; break;
+ case XM_MULTI_RETRIG: effect = IT_RETRIGGER_NOTE; break;
+ case XM_TREMOR: effect = IT_TREMOR; break;
+ case XM_PORTAMENTO_UP: effect = IT_XM_PORTAMENTO_UP; break;
+ case XM_PORTAMENTO_DOWN: effect = IT_XM_PORTAMENTO_DOWN; break;
+ case XM_SET_CHANNEL_VOLUME: effect = IT_SET_CHANNEL_VOLUME; break; /* special */
+ case XM_VOLSLIDE_TONEPORTA: effect = IT_VOLSLIDE_TONEPORTA; break; /* special */
+ case XM_VOLSLIDE_VIBRATO: effect = IT_VOLSLIDE_VIBRATO; break; /* special */
+
+ case XM_PATTERN_BREAK:
+ effect = IT_BREAK_TO_ROW;
+ value = BCD_TO_NORMAL(value);
+ if (value > 63) value = 0; /* FT2, maybe ProTracker? */
+ break;
+
+ case XM_VOLUME_SLIDE: /* special */
+ effect = IT_VOLUME_SLIDE;
+ value = HIGH(value) ? EFFECT_VALUE(HIGH(value), 0) : EFFECT_VALUE(0, LOW(value));
+ break;
+
+ case XM_PANNING_SLIDE:
+ effect = IT_PANNING_SLIDE;
+ //value = HIGH(value) ? EFFECT_VALUE(HIGH(value), 0) : EFFECT_VALUE(0, LOW(value));
+ value = HIGH(value) ? EFFECT_VALUE(0, HIGH(value)) : EFFECT_VALUE(LOW(value), 0);
+ break;
+
+ case XM_GLOBAL_VOLUME_SLIDE: /* special */
+ effect = IT_GLOBAL_VOLUME_SLIDE;
+ value = HIGH(value) ? EFFECT_VALUE(HIGH(value), 0) : EFFECT_VALUE(0, LOW(value));
+ break;
+
+ case XM_SET_TEMPO_BPM:
+ if (mod) effect = (value <= 0x20) ? (IT_SET_SPEED) : (IT_SET_SONG_TEMPO);
+ else effect = (value < 0x20) ? (IT_SET_SPEED) : (IT_SET_SONG_TEMPO);
+ break;
+
+ case XM_SET_GLOBAL_VOLUME:
+ effect = IT_SET_GLOBAL_VOLUME;
+ value *= 2;
+ if (value > 128) value = 128;
+ break;
+
+ case XM_KEY_OFF:
+ effect = IT_XM_KEY_OFF;
+ break;
+
+ case XM_SET_ENVELOPE_POSITION:
+ effect = IT_XM_SET_ENVELOPE_POSITION;
+ break;
+
+ case EBASE+XM_E_SET_FILTER: effect = SBASE+IT_S_SET_FILTER; break;
+ case EBASE+XM_E_SET_GLISSANDO_CONTROL: effect = SBASE+IT_S_SET_GLISSANDO_CONTROL; break; /** TODO */
+ case EBASE+XM_E_SET_FINETUNE: effect = SBASE+IT_S_FINETUNE; break;
+ case EBASE+XM_E_SET_LOOP: effect = SBASE+IT_S_PATTERN_LOOP; break;
+ case EBASE+XM_E_NOTE_CUT: effect = SBASE+IT_S_DELAYED_NOTE_CUT; break;
+ case EBASE+XM_E_NOTE_DELAY: effect = SBASE+IT_S_NOTE_DELAY; break;
+ case EBASE+XM_E_PATTERN_DELAY: effect = SBASE+IT_S_PATTERN_DELAY; break;
+ case EBASE+XM_E_SET_PANNING: effect = SBASE+IT_S_SET_PAN; break;
+ case EBASE+XM_E_FINE_VOLSLIDE_UP: effect = IT_XM_FINE_VOLSLIDE_UP; break;
+ case EBASE+XM_E_FINE_VOLSLIDE_DOWN: effect = IT_XM_FINE_VOLSLIDE_DOWN; break;
+ case EBASE+XM_E_SET_MIDI_MACRO: effect = SBASE+IT_S_SET_MIDI_MACRO; break;
+
+ case EBASE + XM_E_FINE_PORTA_UP:
+ effect = IT_PORTAMENTO_UP;
+ value = EFFECT_VALUE(0xF, value);
+ break;
+
+ case EBASE + XM_E_FINE_PORTA_DOWN:
+ effect = IT_PORTAMENTO_DOWN;
+ value = EFFECT_VALUE(0xF, value);
+ break;
+
+ case EBASE + XM_E_RETRIG_NOTE:
+ effect = IT_XM_RETRIGGER_NOTE;
+ value = EFFECT_VALUE(0, value);
+ break;
+
+ case EBASE + XM_E_SET_VIBRATO_CONTROL:
+ effect = SBASE+IT_S_SET_VIBRATO_WAVEFORM;
+ value &= ~4;
+ break;
+
+ case EBASE + XM_E_SET_TREMOLO_CONTROL:
+ effect = SBASE+IT_S_SET_TREMOLO_WAVEFORM;
+ value &= ~4;
+ break;
+
+ case XBASE + XM_X_EXTRAFINE_PORTA_UP:
+ effect = IT_PORTAMENTO_UP;
+ value = EFFECT_VALUE(0xE, value);
+ break;
+
+ case XBASE + XM_X_EXTRAFINE_PORTA_DOWN:
+ effect = IT_PORTAMENTO_DOWN;
+ value = EFFECT_VALUE(0xE, value);
+ break;
+
+ default:
+ /* user effect (often used in demos for synchronisation) */
+ entry->mask &= ~IT_ENTRY_EFFECT;
+ }
+
+if (log) printf(" - %2d %02X", effect, value);+
+ /* Inverse linearisation... */
+ if (effect >= SBASE && effect < SBASE+16) {+ value = EFFECT_VALUE(effect-SBASE, value);
+ effect = IT_S;
+ }
+
+if (log) printf(" - %c%02X\n", 'A'+effect-1, value);+
+ entry->effect = effect;
+ entry->effectvalue = value;
+}
--- /dev/null
+++ b/vc6/dumb/.gitignore
@@ -1,0 +1,3 @@
+*.user
+Debug
+Release
\ No newline at end of file
--- /dev/null
+++ b/vc6/dumb/dumb.vcproj
@@ -1,0 +1,2007 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+ ProjectType="Visual C++"
+ Version="9.00"
+ Name="dumb"
+ ProjectGUID="{612D360C-A51B-4B34-8F49-33F42A2957F5}"+ RootNamespace="dumb"
+ SccProjectName=""$/foobar2000/plugins.root/plugins", CEAAAAAA"
+ SccLocalPath="..\..\..\.."
+ SccProvider="MSSCCI:Microsoft Visual SourceSafe"
+ TargetFrameworkVersion="131072"
+ >
+ <Platforms>
+ <Platform
+ Name="Win32"
+ />
+ </Platforms>
+ <ToolFiles>
+ </ToolFiles>
+ <Configurations>
+ <Configuration
+ Name="Release|Win32"
+ OutputDirectory="$(ConfigurationName)"
+ IntermediateDirectory="$(ConfigurationName)"
+ ConfigurationType="4"
+ UseOfMFC="0"
+ ATLMinimizesCRunTimeLibraryUsage="false"
+ CharacterSet="2"
+ >
+ <Tool
+ Name="VCPreBuildEventTool"
+ />
+ <Tool
+ Name="VCCustomBuildTool"
+ />
+ <Tool
+ Name="VCXMLDataGeneratorTool"
+ />
+ <Tool
+ Name="VCWebServiceProxyGeneratorTool"
+ />
+ <Tool
+ Name="VCMIDLTool"
+ />
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="2"
+ InlineFunctionExpansion="2"
+ WholeProgramOptimization="true"
+ AdditionalIncludeDirectories="../../include"
+ PreprocessorDefinitions="NDEBUG;WIN32;_LIB;DUMB_DECLARE_DEPRECATED"
+ StringPooling="true"
+ RuntimeLibrary="2"
+ EnableFunctionLevelLinking="true"
+ PrecompiledHeaderFile="$(IntDir)\$(ProjectName).pch"
+ AssemblerListingLocation="$(IntDir)\"
+ ObjectFile="$(IntDir)\"
+ ProgramDataBaseFileName="$(IntDir)\"
+ WarningLevel="3"
+ SuppressStartupBanner="true"
+ CompileAs="0"
+ />
+ <Tool
+ Name="VCManagedResourceCompilerTool"
+ />
+ <Tool
+ Name="VCResourceCompilerTool"
+ PreprocessorDefinitions="NDEBUG"
+ Culture="1033"
+ />
+ <Tool
+ Name="VCPreLinkEventTool"
+ />
+ <Tool
+ Name="VCLibrarianTool"
+ OutputFile="$(OutDir)\$(ProjectName).lib"
+ SuppressStartupBanner="true"
+ />
+ <Tool
+ Name="VCALinkTool"
+ />
+ <Tool
+ Name="VCXDCMakeTool"
+ />
+ <Tool
+ Name="VCBscMakeTool"
+ />
+ <Tool
+ Name="VCFxCopTool"
+ />
+ <Tool
+ Name="VCPostBuildEventTool"
+ />
+ </Configuration>
+ <Configuration
+ Name="Debug|Win32"
+ OutputDirectory="$(ConfigurationName)"
+ IntermediateDirectory="$(ConfigurationName)"
+ ConfigurationType="4"
+ UseOfMFC="0"
+ ATLMinimizesCRunTimeLibraryUsage="false"
+ CharacterSet="2"
+ >
+ <Tool
+ Name="VCPreBuildEventTool"
+ />
+ <Tool
+ Name="VCCustomBuildTool"
+ />
+ <Tool
+ Name="VCXMLDataGeneratorTool"
+ />
+ <Tool
+ Name="VCWebServiceProxyGeneratorTool"
+ />
+ <Tool
+ Name="VCMIDLTool"
+ />
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="0"
+ AdditionalIncludeDirectories="../../include"
+ PreprocessorDefinitions="_DEBUG;WIN32;_LIB;DUMB_DECLARE_DEPRECATED;DEBUGMODE=1"
+ BasicRuntimeChecks="3"
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+ AssemblerListingLocation="$(IntDir)\"
+ ObjectFile="$(IntDir)\"
+ ProgramDataBaseFileName="$(IntDir)\"
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+ SuppressStartupBanner="true"
+ DebugInformationFormat="4"
+ CompileAs="0"
+ />
+ <Tool
+ Name="VCManagedResourceCompilerTool"
+ />
+ <Tool
+ Name="VCResourceCompilerTool"
+ PreprocessorDefinitions="_DEBUG"
+ Culture="1033"
+ />
+ <Tool
+ Name="VCPreLinkEventTool"
+ />
+ <Tool
+ Name="VCLibrarianTool"
+ OutputFile="$(OutDir)\$(ProjectName).lib"
+ SuppressStartupBanner="true"
+ />
+ <Tool
+ Name="VCALinkTool"
+ />
+ <Tool
+ Name="VCXDCMakeTool"
+ />
+ <Tool
+ Name="VCBscMakeTool"
+ />
+ <Tool
+ Name="VCFxCopTool"
+ />
+ <Tool
+ Name="VCPostBuildEventTool"
+ />
+ </Configuration>
+ <Configuration
+ Name="Release staticlink|Win32"
+ OutputDirectory="$(ConfigurationName)"
+ IntermediateDirectory="$(ConfigurationName)"
+ ConfigurationType="4"
+ UseOfMFC="0"
+ ATLMinimizesCRunTimeLibraryUsage="false"
+ CharacterSet="2"
+ WholeProgramOptimization="1"
+ >
+ <Tool
+ Name="VCPreBuildEventTool"
+ />
+ <Tool
+ Name="VCCustomBuildTool"
+ />
+ <Tool
+ Name="VCXMLDataGeneratorTool"
+ />
+ <Tool
+ Name="VCWebServiceProxyGeneratorTool"
+ />
+ <Tool
+ Name="VCMIDLTool"
+ />
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+ Name="VCCLCompilerTool"
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+ AdditionalIncludeDirectories="../../include"
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+ AssemblerListingLocation="$(IntDir)\"
+ ObjectFile="$(IntDir)\"
+ ProgramDataBaseFileName="$(IntDir)\"
+ WarningLevel="3"
+ SuppressStartupBanner="true"
+ DebugInformationFormat="3"
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+ />
+ <Tool
+ Name="VCManagedResourceCompilerTool"
+ />
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+ Name="VCResourceCompilerTool"
+ PreprocessorDefinitions="NDEBUG"
+ Culture="1033"
+ />
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+ />
+ <Tool
+ Name="VCLibrarianTool"
+ OutputFile="$(OutDir)\$(ProjectName).lib"
+ SuppressStartupBanner="true"
+ />
+ <Tool
+ Name="VCALinkTool"
+ />
+ <Tool
+ Name="VCXDCMakeTool"
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+ <Tool
+ Name="VCBscMakeTool"
+ />
+ <Tool
+ Name="VCFxCopTool"
+ />
+ <Tool
+ Name="VCPostBuildEventTool"
+ />
+ </Configuration>
+ </Configurations>
+ <References>
+ </References>
+ <Files>
+ <Filter
+ Name="src"
+ >
+ <Filter
+ Name="core"
+ >
+ <File
+ RelativePath="..\..\src\core\atexit.c"
+ >
+ <FileConfiguration
+ Name="Release|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="2"
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+ PreprocessorDefinitions=""
+ />
+ </FileConfiguration>
+ <FileConfiguration
+ Name="Debug|Win32"
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+ Name="VCCLCompilerTool"
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+ <FileConfiguration
+ Name="Release staticlink|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="2"
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+ />
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+ </File>
+ <File
+ RelativePath="..\..\src\core\duhlen.c"
+ >
+ <FileConfiguration
+ Name="Release|Win32"
+ >
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+ Name="VCCLCompilerTool"
+ Optimization="2"
+ AdditionalIncludeDirectories=""
+ PreprocessorDefinitions=""
+ />
+ </FileConfiguration>
+ <FileConfiguration
+ Name="Debug|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
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+ />
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+ <FileConfiguration
+ Name="Release staticlink|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
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+ />
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+ </File>
+ <File
+ RelativePath="..\..\src\core\duhtag.c"
+ >
+ <FileConfiguration
+ Name="Release|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
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+ Name="Debug|Win32"
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+ Name="VCCLCompilerTool"
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+ Name="Release staticlink|Win32"
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+ Name="VCCLCompilerTool"
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+ PreprocessorDefinitions=""
+ />
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+ </File>
+ <File
+ RelativePath="..\..\src\core\dumbfile.c"
+ >
+ <FileConfiguration
+ Name="Release|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="2"
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+ />
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+ Name="Debug|Win32"
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+ Name="VCCLCompilerTool"
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+ />
+ </FileConfiguration>
+ <FileConfiguration
+ Name="Release staticlink|Win32"
+ >
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+ Name="VCCLCompilerTool"
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+ </File>
+ <File
+ RelativePath="..\..\src\core\loadduh.c"
+ >
+ <FileConfiguration
+ Name="Release|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
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+ />
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+ Name="Debug|Win32"
+ >
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+ />
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+ <FileConfiguration
+ Name="Release staticlink|Win32"
+ >
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+ <File
+ RelativePath="..\..\src\core\makeduh.c"
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+ Name="Release|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
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+ />
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+ Name="Debug|Win32"
+ >
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+ />
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+ <FileConfiguration
+ Name="Release staticlink|Win32"
+ >
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+ Name="VCCLCompilerTool"
+ Optimization="2"
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+ />
+ </FileConfiguration>
+ </File>
+ <File
+ RelativePath="..\..\src\core\rawsig.c"
+ >
+ <FileConfiguration
+ Name="Release|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="2"
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+ />
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+ Name="Debug|Win32"
+ >
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+ Name="VCCLCompilerTool"
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+ />
+ </FileConfiguration>
+ <FileConfiguration
+ Name="Release staticlink|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="2"
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+ PreprocessorDefinitions=""
+ />
+ </FileConfiguration>
+ </File>
+ <File
+ RelativePath="..\..\src\core\readduh.c"
+ >
+ <FileConfiguration
+ Name="Release|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="2"
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+ />
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+ <FileConfiguration
+ Name="Debug|Win32"
+ >
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+ Name="VCCLCompilerTool"
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+ />
+ </FileConfiguration>
+ <FileConfiguration
+ Name="Release staticlink|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="2"
+ AdditionalIncludeDirectories=""
+ PreprocessorDefinitions=""
+ />
+ </FileConfiguration>
+ </File>
+ <File
+ RelativePath="..\..\src\core\register.c"
+ >
+ <FileConfiguration
+ Name="Release|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="2"
+ AdditionalIncludeDirectories=""
+ PreprocessorDefinitions=""
+ />
+ </FileConfiguration>
+ <FileConfiguration
+ Name="Debug|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="0"
+ AdditionalIncludeDirectories=""
+ PreprocessorDefinitions=""
+ BasicRuntimeChecks="3"
+ />
+ </FileConfiguration>
+ <FileConfiguration
+ Name="Release staticlink|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="2"
+ AdditionalIncludeDirectories=""
+ PreprocessorDefinitions=""
+ />
+ </FileConfiguration>
+ </File>
+ <File
+ RelativePath="..\..\src\core\rendduh.c"
+ >
+ <FileConfiguration
+ Name="Release|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="2"
+ AdditionalIncludeDirectories=""
+ PreprocessorDefinitions=""
+ />
+ </FileConfiguration>
+ <FileConfiguration
+ Name="Debug|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="0"
+ AdditionalIncludeDirectories=""
+ PreprocessorDefinitions=""
+ BasicRuntimeChecks="3"
+ />
+ </FileConfiguration>
+ <FileConfiguration
+ Name="Release staticlink|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="2"
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+ PreprocessorDefinitions=""
+ />
+ </FileConfiguration>
+ </File>
+ <File
+ RelativePath="..\..\src\core\rendsig.c"
+ >
+ <FileConfiguration
+ Name="Release|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="2"
+ AdditionalIncludeDirectories=""
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+ />
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+ <FileConfiguration
+ Name="Debug|Win32"
+ >
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+ Name="VCCLCompilerTool"
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+ />
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+ <FileConfiguration
+ Name="Release staticlink|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="2"
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+ </FileConfiguration>
+ </File>
+ <File
+ RelativePath="..\..\src\core\unload.c"
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+ Name="Release|Win32"
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+ Name="VCCLCompilerTool"
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+ Name="Debug|Win32"
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+ </FileConfiguration>
+ <FileConfiguration
+ Name="Release staticlink|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="2"
+ AdditionalIncludeDirectories=""
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+ />
+ </FileConfiguration>
+ </File>
+ </Filter>
+ <Filter
+ Name="helpers"
+ >
+ <File
+ RelativePath="..\..\src\helpers\barray.c"
+ >
+ <FileConfiguration
+ Name="Release|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
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+ <File
+ RelativePath="..\..\src\helpers\clickrem.c"
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+ <FileConfiguration
+ Name="Release|Win32"
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+ <Tool
+ Name="VCCLCompilerTool"
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+ <FileConfiguration
+ Name="Release staticlink|Win32"
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+ Name="VCCLCompilerTool"
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+ </FileConfiguration>
+ </File>
+ <File
+ RelativePath="..\..\src\helpers\memfile.c"
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+ <FileConfiguration
+ Name="Release|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="2"
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+ <FileConfiguration
+ Name="Debug|Win32"
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+ Name="VCCLCompilerTool"
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+ </FileConfiguration>
+ <FileConfiguration
+ Name="Release staticlink|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
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+ </FileConfiguration>
+ </File>
+ <File
+ RelativePath="..\..\src\helpers\resamp2.inc"
+ >
+ <FileConfiguration
+ Name="Release|Win32"
+ ExcludedFromBuild="true"
+ >
+ <Tool
+ Name="VCCustomBuildTool"
+ />
+ </FileConfiguration>
+ <FileConfiguration
+ Name="Debug|Win32"
+ ExcludedFromBuild="true"
+ >
+ <Tool
+ Name="VCCustomBuildTool"
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+ <FileConfiguration
+ Name="Release staticlink|Win32"
+ ExcludedFromBuild="true"
+ >
+ <Tool
+ Name="VCCustomBuildTool"
+ />
+ </FileConfiguration>
+ </File>
+ <File
+ RelativePath="..\..\src\helpers\resamp3.inc"
+ >
+ <FileConfiguration
+ Name="Release|Win32"
+ ExcludedFromBuild="true"
+ >
+ <Tool
+ Name="VCCustomBuildTool"
+ />
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+ <FileConfiguration
+ Name="Debug|Win32"
+ ExcludedFromBuild="true"
+ >
+ <Tool
+ Name="VCCustomBuildTool"
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+ </FileConfiguration>
+ <FileConfiguration
+ Name="Release staticlink|Win32"
+ ExcludedFromBuild="true"
+ >
+ <Tool
+ Name="VCCustomBuildTool"
+ />
+ </FileConfiguration>
+ </File>
+ <File
+ RelativePath="..\..\src\helpers\resample.c"
+ >
+ <FileConfiguration
+ Name="Release|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
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+ <FileConfiguration
+ Name="Debug|Win32"
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+ Name="VCCLCompilerTool"
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+ <CustomBuild Include="..\..\src\helpers\resamp3.inc">
+ <Filter>src\helpers</Filter>
+ </CustomBuild>
+ <CustomBuild Include="..\..\src\helpers\resamp2.inc">
+ <Filter>src\helpers</Filter>
+ </CustomBuild>
+ <CustomBuild Include="..\..\src\helpers\resample.inc">
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+ </CustomBuild>
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+</Project>
\ No newline at end of file