ref: 2247f4c8984d43c50550fbd4444e2eed321007d2
dir: /src/ft2_sample_ed.c/
// for finding memory leaks in debug mode with Visual Studio
#if defined _DEBUG && defined _MSC_VER
#include <crtdbg.h>
#endif
#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include <math.h>
#ifndef _WIN32
#include <unistd.h> // chdir() in UNICHAR_CHDIR()
#endif
#include "ft2_header.h"
#include "ft2_config.h"
#include "ft2_audio.h"
#include "ft2_pattern_ed.h"
#include "ft2_gui.h"
#include "ft2_scopes.h"
#include "ft2_video.h"
#include "ft2_inst_ed.h"
#include "ft2_sample_ed.h"
#include "ft2_sample_saver.h"
#include "ft2_mouse.h"
#include "ft2_diskop.h"
#include "ft2_keyboard.h"
static const char sharpNote1Char[12] = { 'C', 'C', 'D', 'D', 'E', 'F', 'F', 'G', 'G', 'A', 'A', 'B' };
static const char sharpNote2Char[12] = { '-', '#', '-', '#', '-', '-', '#', '-', '#', '-', '#', '-' };
static const char flatNote1Char[12] = { 'C', 'D', 'D', 'E', 'E', 'F', 'G', 'G', 'A', 'A', 'B', 'B' };
static const char flatNote2Char[12] = { '-', 'b', '-', 'b', '-', '-', 'b', '-', 'b', '-', 'b', '-' };
static char smpEd_SysReqText[64];
static int8_t *smpCopyBuff;
static bool updateLoopsOnMouseUp, writeSampleFlag;
static int32_t smpEd_OldSmpPosLine = -1;
static int32_t smpEd_ViewSize, smpEd_ScrPos, smpCopySize, smpCopyBits;
static int32_t old_Rx1, old_Rx2, old_ViewSize, old_SmpScrPos;
static int32_t lastMouseX, lastMouseY, lastDrawX, lastDrawY, mouseXOffs, curSmpRepS, curSmpRepL;
static double dScrPosScaled, dPos2ScrMul, dScr2SmpPosMul;
static SDL_Thread *thread;
// globals
int32_t smpEd_Rx1 = 0, smpEd_Rx2 = 0;
sampleTyp *getCurSample(void)
{
if (editor.curInstr == 0 || instr[editor.curInstr] == NULL)
return NULL;
return &instr[editor.curInstr]->samp[editor.curSmp];
}
// adds wrapped samples after loop/end (for branchless mixer interpolation)
void fixSample(sampleTyp *s)
{
uint8_t loopType;
int16_t *ptr16;
int32_t loopStart, loopLen, loopEnd, len;
assert(s != NULL);
if (s->origPek == NULL)
return; // empty sample
assert(s->pek != NULL);
loopType = s->typ & 3;
if (loopType == 0)
{
len = s->len;
// no loop (don't mess with fixed, fixSpar of fixedPos)
if (s->typ & 16)
{
if (len < 2)
return;
len /= 2;
ptr16 = (int16_t *)s->pek;
// write new values
ptr16[-1] = 0;
ptr16[len+0] = 0;
#ifndef LERPMIX
ptr16[len+1] = 0;
#endif
}
else
{
if (len < 1)
return;
// write new values
s->pek[-1] = 0;
s->pek[len+0] = 0;
#ifndef LERPMIX
s->pek[len+1] = 0;
#endif
}
return;
}
if (s->fixed)
return; // already fixed
if (loopType == 1)
{
// forward loop
if (s->typ & 16)
{
// 16-bit sample
if (s->repL < 2)
return;
loopStart = s->repS / 2;
loopEnd = (s->repS + s->repL) / 2;
ptr16 = (int16_t *)s->pek;
// store old fix position and old values
s->fixedPos = s->repS + s->repL;
s->fixedSmp1 = ptr16[loopEnd+0];
#ifndef LERPMIX
s->fixedSmp2 = ptr16[loopEnd+1];
#endif
// write new values
ptr16[loopEnd+0] = ptr16[loopStart+0];
#ifndef LERPMIX
if (loopStart == 0 && loopEnd > 0)
ptr16[-1] = ptr16[loopEnd-1];
ptr16[loopEnd+1] = ptr16[loopStart+1];
#endif
}
else
{
// 8-bit sample
if (s->repL < 1)
return;
loopStart = s->repS;
loopEnd = s->repS + s->repL;
// store old fix position and old values
s->fixedPos = loopEnd;
s->fixedSmp1 = s->pek[loopEnd+0];
#ifndef LERPMIX
s->fixedSmp2 = s->pek[loopEnd+1];
#endif
// write new values
s->pek[loopEnd+0] = s->pek[loopStart+0];
#ifndef LERPMIX
if (loopStart == 0 && loopEnd > 0)
s->pek[-1] = s->pek[loopEnd-1];
s->pek[loopEnd+1] = s->pek[loopStart+1];
#endif
}
}
else
{
// pingpong loop
if (s->typ & 16)
{
// 16-bit sample
if (s->repL < 2)
return;
loopStart = s->repS / 2;
loopLen = s->repL/ 2;
loopEnd = loopStart + loopLen;
ptr16 = (int16_t *)s->pek;
// store old fix position and old values
s->fixedPos = s->repS + s->repL;
s->fixedSmp1 = ptr16[loopEnd+0];
#ifndef LERPMIX
s->fixedSmp2 = ptr16[loopEnd+1];
#endif
// write new values
ptr16[loopEnd+0] = ptr16[loopEnd-1];
#ifndef LERPMIX
if (loopStart == 0)
ptr16[-1] = ptr16[0];
if (loopLen >= 2)
ptr16[loopEnd+1] = ptr16[loopEnd-2];
else
ptr16[loopEnd+1] = ptr16[loopStart+0];
#endif
}
else
{
// 8-bit sample
if (s->repL < 1)
return;
loopStart = s->repS;
loopLen = s->repL;
loopEnd = loopStart + loopLen;
// store old fix position and old values
s->fixedPos = loopEnd;
s->fixedSmp1 = s->pek[loopEnd+0];
#ifndef LERPMIX
s->fixedSmp2 = s->pek[loopEnd+1];
#endif
// write new values
s->pek[loopEnd+0] = s->pek[loopEnd-1];
#ifndef LERPMIX
if (loopStart == 0)
s->pek[-1] = s->pek[0];
if (loopLen >= 2)
s->pek[loopEnd+1] = s->pek[loopEnd-2];
else
s->pek[loopEnd+1] = s->pek[loopStart+0];
#endif
}
}
s->fixed = true;
}
// reverts wrapped samples after loop/end (for branchless mixer interpolation)
void restoreSample(sampleTyp *s)
{
int16_t *ptr16;
int32_t fixedPos16;
assert(s != NULL);
if (s->origPek == NULL || s->len == 0 || (s->typ & 3) == 0 || !s->fixed)
return; // empty sample, no loop or not fixed
assert(s->pek != NULL);
s->fixed = false;
// clear pre-start bytes
s->pek[-4] = 0;
s->pek[-3] = 0;
s->pek[-2] = 0;
s->pek[-1] = 0;
if (s->typ & 16)
{
// 16-bit sample
ptr16 = (int16_t *)s->pek;
fixedPos16 = s->fixedPos >> 1;
ptr16[fixedPos16+0] = s->fixedSmp1;
#ifndef LERPMIX
ptr16[fixedPos16+1] = s->fixedSmp2;
#endif
}
else
{
// 8-bit sample
s->pek[s->fixedPos+0] = (int8_t)s->fixedSmp1;
#ifndef LERPMIX
s->pek[s->fixedPos+1] = (int8_t)s->fixedSmp2;
#endif
}
}
inline int16_t getSampleValueNr(int8_t *ptr, uint8_t typ, int32_t pos)
{
assert(pos >= 0);
if (ptr == NULL)
return 0;
if (typ & 16)
{
assert(!(pos & 1));
return *(int16_t *)&ptr[pos];
}
else
{
return ptr[pos];
}
}
inline void putSampleValueNr(int8_t *ptr, uint8_t typ, int32_t pos, int16_t val)
{
assert(pos >= 0);
if (ptr == NULL)
return;
if (typ & 16)
{
assert(!(pos & 1));
*(int16_t *)&ptr[pos] = val;
}
else
{
ptr[pos] = (int8_t)val;
}
}
void clearCopyBuffer(void)
{
if (smpCopyBuff != NULL)
{
free(smpCopyBuff);
smpCopyBuff = NULL;
}
smpCopySize = 0;
smpCopyBits = 8;
}
int32_t getSampleMiddleCRate(sampleTyp *s)
{
int32_t realFineTune = (int32_t)s->fine >> 3; // the FT2 replayer is ASR'ing the finetune to the right by 3
double dFTune = realFineTune * (1.0 / 16.0); // new range is -16..15
double dFreq = 8363.0 * exp2((s->relTon + dFTune) * (1.0 / 12.0));
return (int32_t)(dFreq + 0.5);
}
int32_t getSampleRangeStart(void)
{
return smpEd_Rx1;
}
int32_t getSampleRangeEnd(void)
{
return smpEd_Rx2;
}
int32_t getSampleRangeLength(void)
{
return smpEd_Rx2 - smpEd_Rx1;
}
// for smpPos2Scr() / scr2SmpPos()
static void updateViewSize(void)
{
if (smpEd_ViewSize == 0)
dPos2ScrMul = 1.0;
else
dPos2ScrMul = (double)SAMPLE_AREA_WIDTH / smpEd_ViewSize;
dScr2SmpPosMul = smpEd_ViewSize * (1.0 / SAMPLE_AREA_WIDTH);
}
static void updateScrPos(void)
{
dScrPosScaled = trunc(smpEd_ScrPos * dPos2ScrMul);
}
// sample pos -> screen x pos (if outside of visible area, will return <0 or >=SCREEN_W)
static int32_t smpPos2Scr(int32_t pos)
{
double dPos;
sampleTyp *s;
if (smpEd_ViewSize <= 0)
return -1;
s = getCurSample();
if (s == NULL)
return -1;
if (pos > s->len)
pos = s->len;
dPos = (pos * dPos2ScrMul) + 0.5; // rounding is needed here (+ 0.5)
dPos -= dScrPosScaled;
// this is important, or else the result can mess up in some cases
dPos = CLAMP(dPos, INT32_MIN, INT32_MAX);
pos = (int32_t)dPos;
return pos;
}
// screen x pos -> sample pos
static int32_t scr2SmpPos(int32_t x)
{
double dPos;
sampleTyp *s;
if (smpEd_ViewSize <= 0)
return 0;
s = getCurSample();
if (s == NULL)
return 0;
if (x < 0)
x = 0;
dPos = (dScrPosScaled + x) * dScr2SmpPosMul;
x = (int32_t)dPos;
if (x > s->len)
x = s->len;
if (s->typ & 16)
x &= 0xFFFFFFFE;
return x;
}
static void fixRepeatGadgets(void)
{
int32_t repS, repE;
sampleTyp *s;
bool showLoopPins = true;
s = getCurSample();
if (s == NULL || s->len <= 0 || s->pek == NULL || (s->typ & 3) == 0 || !editor.ui.sampleEditorShown)
showLoopPins = false;
if (editor.ui.sampleEditorShown)
{
// draw Repeat/Replen. numbers
hexOutBg(536, 375, PAL_FORGRND, PAL_DESKTOP, curSmpRepS, 8);
hexOutBg(536, 387, PAL_FORGRND, PAL_DESKTOP, curSmpRepL, 8);
}
if (!showLoopPins)
{
hideSprite(SPRITE_LEFT_LOOP_PIN);
hideSprite(SPRITE_RIGHT_LOOP_PIN);
return;
}
// draw sample loop points
repS = smpPos2Scr(curSmpRepS);
repE = smpPos2Scr(curSmpRepS+curSmpRepL);
// do -8 test because part of the loop sprite sticks out on the left/right
if (repS >= -8 && repS <= SAMPLE_AREA_WIDTH+8)
setSpritePos(SPRITE_LEFT_LOOP_PIN, (int16_t)(repS - 8), 174);
else
hideSprite(SPRITE_LEFT_LOOP_PIN);
if (repE >= -8)
{
if (repE <= SAMPLE_AREA_WIDTH+8)
setSpritePos(SPRITE_RIGHT_LOOP_PIN, (int16_t)(repE - 8), 174);
else
hideSprite(SPRITE_RIGHT_LOOP_PIN);
}
else
{
hideSprite(SPRITE_RIGHT_LOOP_PIN);
}
}
static void fixSampleDrag(void)
{
sampleTyp *s = getCurSample();
if (s == NULL)
{
setScrollBarPageLength(SB_SAMP_SCROLL, 0);
setScrollBarEnd(SB_SAMP_SCROLL, 0);
setScrollBarPos(SB_SAMP_SCROLL, 0, false);
return;
}
setScrollBarPageLength(SB_SAMP_SCROLL, smpEd_ViewSize);
setScrollBarEnd(SB_SAMP_SCROLL, instr[editor.curInstr]->samp[editor.curSmp].len);
setScrollBarPos(SB_SAMP_SCROLL, smpEd_ScrPos, false);
}
static bool getCopyBuffer(int32_t size)
{
if (smpCopyBuff != NULL)
free(smpCopyBuff);
if (size > MAX_SAMPLE_LEN)
size = MAX_SAMPLE_LEN;
smpCopyBuff = (int8_t *)malloc(size);
if (smpCopyBuff == NULL)
{
smpCopySize = 0;
return false;
}
smpCopySize = size;
return true;
}
static int32_t SDLCALL copySampleThread(void *ptr)
{
bool error;
int8_t *p;
int16_t destIns, destSmp, sourceIns, sourceSmp;
sampleTyp *src, *dst;
(void)ptr;
error = false;
destIns = editor.curInstr;
destSmp = editor.curSmp;
sourceIns = editor.srcInstr;
sourceSmp = editor.srcSmp;
pauseAudio();
if (instr[destIns] == NULL)
error = !allocateInstr(destIns);
if (!error)
{
freeSample(destIns, destSmp);
src = &instr[sourceIns]->samp[sourceSmp];
dst = &instr[destIns]->samp[destSmp];
if (instr[sourceIns] != NULL && src->origPek != NULL)
{
p = (int8_t *)malloc(src->len + LOOP_FIX_LEN);
if (p != NULL)
{
memcpy(dst, src, sizeof (sampleTyp));
memcpy(p, src->origPek, src->len + LOOP_FIX_LEN);
dst->origPek = p;
dst->pek = dst->origPek + SMP_DAT_OFFSET;
}
else error = true;
}
}
resumeAudio();
if (error)
okBoxThreadSafe(0, "System message", "Not enough memory!");
editor.updateCurSmp = true;
setSongModifiedFlag();
setMouseBusy(false);
return true;
}
void copySmp(void) // copy sample from srcInstr->srcSmp to curInstr->curSmp
{
if (editor.curInstr == 0 || (editor.curInstr == editor.srcInstr && editor.curSmp == editor.srcSmp))
return;
mouseAnimOn();
thread = SDL_CreateThread(copySampleThread, NULL, NULL);
if (thread == NULL)
{
okBox(0, "System message", "Couldn't create thread!");
return;
}
SDL_DetachThread(thread);
}
void xchgSmp(void) // dstSmp <-> srcSmp
{
sampleTyp *src, *dst, dstTmp;
if (editor.curInstr == 0 ||
(editor.curInstr == editor.srcInstr && editor.curSmp == editor.srcSmp) ||
instr[editor.curInstr] == NULL)
{
return;
}
src = &instr[editor.curInstr]->samp[editor.srcSmp];
dst = &instr[editor.curInstr]->samp[editor.curSmp];
lockMixerCallback();
dstTmp = *dst;
*dst = *src;
*src = dstTmp;
unlockMixerCallback();
updateNewSample();
setSongModifiedFlag();
}
static void writeRange(void)
{
int32_t start, end, rangeLen;
uint32_t *ptr32;
// very first sample (rx1=0,rx2=0) is the "no range" special case
if (!editor.ui.sampleEditorShown || smpEd_ViewSize == 0 || (smpEd_Rx1 == 0 && smpEd_Rx2 == 0))
return;
// test if range is outside of view (passed it by scrolling)
start = smpPos2Scr(smpEd_Rx1);
if (start >= SAMPLE_AREA_WIDTH)
return;
// test if range is outside of view (passed it by scrolling)
end = smpPos2Scr(smpEd_Rx2);
if (end < 0)
return;
start = CLAMP(start, 0, SAMPLE_AREA_WIDTH - 1);
end = CLAMP(end, 0, SAMPLE_AREA_WIDTH - 1);
rangeLen = (end + 1) - start;
assert(start+rangeLen <= SCREEN_W);
ptr32 = &video.frameBuffer[(174 * SCREEN_W) + start];
for (int32_t y = 0; y < SAMPLE_AREA_HEIGHT; y++)
{
for (int32_t x = 0; x < rangeLen; x++)
ptr32[x] = video.palette[(ptr32[x] >> 24) ^ 2]; // ">> 24" to get palette, XOR 2 to switch between mark/normal palette
ptr32 += SCREEN_W;
}
}
static int8_t getScaledSample(sampleTyp *s, int32_t index)
{
int8_t *ptr8, sample;
int16_t *ptr16;
int32_t tmp32;
if (s->pek == NULL || index < 0 || index >= s->len)
return 0; // return center value if overflown (e.g. sample is shorter than screen width)
if (s->typ & 16)
{
ptr16 = (int16_t *)s->pek;
assert(!(index & 1));
// restore fixed mixer interpolation sample(s)
if (s->fixed)
{
if (index == s->fixedPos)
tmp32 = s->fixedSmp1;
#ifndef LERPMIX
else if (index == s->fixedPos+2)
tmp32 = s->fixedSmp2;
#endif
else
tmp32 = ptr16[index >> 1];
}
else
{
tmp32 = ptr16[index >> 1];
}
sample = (int8_t)((tmp32 * SAMPLE_AREA_HEIGHT) >> 16);
}
else
{
ptr8 = s->pek;
// restore fixed mixer interpolation sample(s)
if (s->fixed)
{
if (index == s->fixedPos)
tmp32 = s->fixedSmp1;
#ifndef LERPMIX
else if (index == s->fixedPos+1)
tmp32 = s->fixedSmp2;
#endif
else
tmp32 = ptr8[index];
}
else
{
tmp32 = ptr8[index];
}
sample = (int8_t)((tmp32 * SAMPLE_AREA_HEIGHT) >> 8);
}
return sample;
}
static void sampleLine(int16_t x1, int16_t x2, int16_t y1, int16_t y2)
{
int16_t d, x, y, sx, sy, dx, dy;
uint16_t ax, ay;
int32_t pitch;
uint32_t pal1, pal2, pixVal, *dst32;
// get coefficients
dx = x2 - x1;
ax = ABS(dx) * 2;
sx = SGN(dx);
dy = y2 - y1;
ay = ABS(dy) * 2;
sy = SGN(dy);
x = x1;
y = y1;
pal1 = video.palette[PAL_DESKTOP];
pal2 = video.palette[PAL_FORGRND];
pixVal = video.palette[PAL_PATTEXT];
pitch = sy * SCREEN_W;
dst32 = &video.frameBuffer[(y * SCREEN_W) + x];
// draw line
if (ax > ay)
{
d = ay - (ax / 2);
while (true)
{
// invert certain colors
if (*dst32 != pal2)
{
if (*dst32 == pal1)
*dst32 = pal2;
else
*dst32 = pixVal;
}
if (x == x2)
break;
if (d >= 0)
{
d -= ax;
dst32 += pitch;
}
x += sx;
d += ay;
dst32 += sx;
}
}
else
{
d = ax - (ay / 2);
while (true)
{
// invert certain colors
if (*dst32 != pal2)
{
if (*dst32 == pal1)
*dst32 = pal2;
else
*dst32 = pixVal;
}
if (y == y2)
break;
if (d >= 0)
{
d -= ay;
dst32 += sx;
}
y += sy;
d += ax;
dst32 += pitch;
}
}
}
static void getMinMax16(const void *p, uint32_t scanLen, int16_t *min16, int16_t *max16)
{
#if defined __APPLE__ || defined _WIN32 || defined __amd64__ || (defined __i386__ && defined __SSE2__)
if (cpu.hasSSE2)
{
/* Taken with permission from the OpenMPT project (and slightly modified).
**
** SSE2 implementation for min/max finder, packs 8*int16 in a 128-bit XMM register.
** scanLen = How many samples to process
*/
const int16_t *p16;
uint32_t scanLen8;
const __m128i *v;
__m128i minVal, maxVal, minVal2, maxVal2, curVals;
// Put minimum / maximum in 8 packed int16 values
minVal = _mm_set1_epi16(32767);
maxVal = _mm_set1_epi16(-32768);
scanLen8 = scanLen / 8;
if (scanLen8 > 0)
{
v = (__m128i *)p;
p = (const __m128i *)p + scanLen8;
while (scanLen8--)
{
curVals = _mm_loadu_si128(v++);
minVal = _mm_min_epi16(minVal, curVals);
maxVal = _mm_max_epi16(maxVal, curVals);
}
/* Now we have 8 minima and maxima each.
** Move the upper 4 values to the lower half and compute the minima/maxima of that. */
minVal2 = _mm_unpackhi_epi64(minVal, minVal);
maxVal2 = _mm_unpackhi_epi64(maxVal, maxVal);
minVal = _mm_min_epi16(minVal, minVal2);
maxVal = _mm_max_epi16(maxVal, maxVal2);
/* Now we have 4 minima and maxima each.
** Move the upper 2 values to the lower half and compute the minima/maxima of that. */
minVal2 = _mm_shuffle_epi32(minVal, _MM_SHUFFLE(1, 1, 1, 1));
maxVal2 = _mm_shuffle_epi32(maxVal, _MM_SHUFFLE(1, 1, 1, 1));
minVal = _mm_min_epi16(minVal, minVal2);
maxVal = _mm_max_epi16(maxVal, maxVal2);
// Compute the minima/maxima of the both remaining values
minVal2 = _mm_shufflelo_epi16(minVal, _MM_SHUFFLE(1, 1, 1, 1));
maxVal2 = _mm_shufflelo_epi16(maxVal, _MM_SHUFFLE(1, 1, 1, 1));
minVal = _mm_min_epi16(minVal, minVal2);
maxVal = _mm_max_epi16(maxVal, maxVal2);
}
p16 = (const int16_t *)p;
while (scanLen-- & 7)
{
curVals = _mm_set1_epi16(*p16++);
minVal = _mm_min_epi16(minVal, curVals);
maxVal = _mm_max_epi16(maxVal, curVals);
}
*min16 = (int16_t)_mm_cvtsi128_si32(minVal);
*max16 = (int16_t)_mm_cvtsi128_si32(maxVal);
}
else
#endif
{
// non-SSE version (really slow for big samples, especially when scrolling!)
int16_t smp16, minVal, maxVal, *ptr16;
minVal = 32767;
maxVal = -32768;
ptr16 = (int16_t *)p;
for (uint32_t i = 0; i < scanLen; i++)
{
smp16 = ptr16[i];
if (smp16 < minVal) minVal = smp16;
if (smp16 > maxVal) maxVal = smp16;
}
*min16 = minVal;
*max16 = maxVal;
}
}
static void getMinMax8(const void *p, uint32_t scanLen, int8_t *min8, int8_t *max8)
{
#if defined __APPLE__ || defined _WIN32 || defined __amd64__ || (defined __i386__ && defined __SSE2__)
if (cpu.hasSSE2)
{
/* Taken with permission from the OpenMPT project (and slightly modified).
**
** SSE2 implementation for min/max finder, packs 16*int8 in a 128-bit XMM register.
** scanLen = How many samples to process
*/
const int8_t *p8;
uint32_t scanLen16;
const __m128i *v;
__m128i xorVal, minVal, maxVal, minVal2, maxVal2, curVals;
// Put minimum / maximum in 8 packed int16 values (-1 and 0 because unsigned)
minVal = _mm_set1_epi8(-1);
maxVal = _mm_set1_epi8(0);
// For signed <-> unsigned conversion (_mm_min_epi8/_mm_max_epi8 is SSE4)
xorVal = _mm_set1_epi8(0x80);
scanLen16 = scanLen / 16;
if (scanLen16 > 0)
{
v = (__m128i *)p;
p = (const __m128i *)p + scanLen16;
while (scanLen16--)
{
curVals = _mm_loadu_si128(v++);
curVals = _mm_xor_si128(curVals, xorVal);
minVal = _mm_min_epu8(minVal, curVals);
maxVal = _mm_max_epu8(maxVal, curVals);
}
/* Now we have 16 minima and maxima each.
** Move the upper 8 values to the lower half and compute the minima/maxima of that. */
minVal2 = _mm_unpackhi_epi64(minVal, minVal);
maxVal2 = _mm_unpackhi_epi64(maxVal, maxVal);
minVal = _mm_min_epu8(minVal, minVal2);
maxVal = _mm_max_epu8(maxVal, maxVal2);
/* Now we have 8 minima and maxima each.
** Move the upper 4 values to the lower half and compute the minima/maxima of that. */
minVal2 = _mm_shuffle_epi32(minVal, _MM_SHUFFLE(1, 1, 1, 1));
maxVal2 = _mm_shuffle_epi32(maxVal, _MM_SHUFFLE(1, 1, 1, 1));
minVal = _mm_min_epu8(minVal, minVal2);
maxVal = _mm_max_epu8(maxVal, maxVal2);
/* Now we have 4 minima and maxima each.
** Move the upper 2 values to the lower half and compute the minima/maxima of that. */
minVal2 = _mm_srai_epi32(minVal, 16);
maxVal2 = _mm_srai_epi32(maxVal, 16);
minVal = _mm_min_epu8(minVal, minVal2);
maxVal = _mm_max_epu8(maxVal, maxVal2);
// Compute the minima/maxima of the both remaining values
minVal2 = _mm_srai_epi16(minVal, 8);
maxVal2 = _mm_srai_epi16(maxVal, 8);
minVal = _mm_min_epu8(minVal, minVal2);
maxVal = _mm_max_epu8(maxVal, maxVal2);
}
p8 = (const int8_t *)p;
while (scanLen-- & 15)
{
curVals = _mm_set1_epi8(*p8++ ^ 0x80);
minVal = _mm_min_epu8(minVal, curVals);
maxVal = _mm_max_epu8(maxVal, curVals);
}
*min8 = (int8_t)(_mm_cvtsi128_si32(minVal) ^ 0x80);
*max8 = (int8_t)(_mm_cvtsi128_si32(maxVal) ^ 0x80);
}
else
#endif
{
// non-SSE version (really slow for big samples, especially when scrolling!)
int8_t smp8, minVal, maxVal, *ptr8;
minVal = 127;
maxVal = -128;
ptr8 = (int8_t *)p;
for (uint32_t i = 0; i < scanLen; i++)
{
smp8 = ptr8[i];
if (smp8 < minVal) minVal = smp8;
if (smp8 > maxVal) maxVal = smp8;
}
*min8 = minVal;
*max8 = maxVal;
}
}
static void getSampleDataPeak(sampleTyp *s, int32_t index, int32_t numBytes, int16_t *outMin, int16_t *outMax)
{
int8_t min8, max8;
int16_t min16, max16;
if (numBytes == 0 || s->pek == NULL || s->len <= 0)
{
*outMin = SAMPLE_AREA_Y_CENTER;
*outMax = SAMPLE_AREA_Y_CENTER;
return;
}
if (s->typ & 16)
{
// 16-bit sample
assert(!(index & 1));
getMinMax16((int16_t *)&s->pek[index], numBytes >> 1, &min16, &max16);
*outMin = SAMPLE_AREA_Y_CENTER - ((min16 * SAMPLE_AREA_HEIGHT) >> 16);
*outMax = SAMPLE_AREA_Y_CENTER - ((max16 * SAMPLE_AREA_HEIGHT) >> 16);
}
else
{
// 8-bit sample
getMinMax8(&s->pek[index], numBytes, &min8, &max8);
*outMin = SAMPLE_AREA_Y_CENTER - ((min8 * SAMPLE_AREA_HEIGHT) >> 8);
*outMax = SAMPLE_AREA_Y_CENTER - ((max8 * SAMPLE_AREA_HEIGHT) >> 8);
}
}
static void writeWaveform(void)
{
int16_t x, y1, y2, min, max, oldMin, oldMax;
int32_t smpIdx, smpNum, smpNumMin;
uint32_t viewSizeSamples;
sampleTyp *s;
// clear sample data area
memset(&video.frameBuffer[174 * SCREEN_W], 0, SAMPLE_AREA_WIDTH * SAMPLE_AREA_HEIGHT * sizeof (int32_t));
// draw center line
hLine(0, SAMPLE_AREA_Y_CENTER, SAMPLE_AREA_WIDTH, PAL_DESKTOP);
if (instr[editor.curInstr] == NULL || smpEd_ViewSize == 0)
return;
s = &instr[editor.curInstr]->samp[editor.curSmp];
if (s->pek == NULL || s->len == 0)
return;
y1 = SAMPLE_AREA_Y_CENTER - getScaledSample(s, scr2SmpPos(0));
viewSizeSamples = smpEd_ViewSize;
if (s->typ & 16)
viewSizeSamples >>= 1;
if (viewSizeSamples <= SAMPLE_AREA_WIDTH)
{
// 1:1 or zoomed in
for (x = 1; x < SAMPLE_AREA_WIDTH; x++)
{
y2 = SAMPLE_AREA_Y_CENTER - getScaledSample(s, scr2SmpPos(x));
sampleLine(x - 1, x, y1, y2);
y1 = y2;
}
}
else
{
// zoomed out
oldMin = y1;
oldMax = y1;
smpNumMin = (s->typ & 16) ? 2 : 1;
for (x = 0; x < SAMPLE_AREA_WIDTH; x++)
{
smpIdx = scr2SmpPos(x);
smpNum = scr2SmpPos(x+1) - smpIdx;
// prevent look-up overflow (yes, this can happen near the end of the sample)
if (smpIdx+smpNum > s->len)
smpNum = s->len - smpNum;
if (smpNum < smpNumMin)
smpNum = smpNumMin;
getSampleDataPeak(s, smpIdx, smpNum, &min, &max);
if (x != 0)
{
if (min > oldMax) sampleLine(x - 1, x, oldMax, min);
if (max < oldMin) sampleLine(x - 1, x, oldMin, max);
}
sampleLine(x, x, max, min);
oldMin = min;
oldMax = max;
}
}
}
void writeSample(bool forceSmpRedraw)
{
int32_t tmpRx1, tmpRx2;
sampleTyp *s;
// update sample loop points for visuals
if (instr[editor.curInstr] == NULL)
s = &instr[0]->samp[0];
else
s = &instr[editor.curInstr]->samp[editor.curSmp];
curSmpRepS = s->repS;
curSmpRepL = s->repL;
// exchange range variables if x1 is after x2
if (smpEd_Rx1 > smpEd_Rx2)
{
tmpRx2 = smpEd_Rx2;
smpEd_Rx2 = smpEd_Rx1;
smpEd_Rx1 = tmpRx2;
}
// clamp range
smpEd_Rx1 = CLAMP(smpEd_Rx1, 0, s->len);
smpEd_Rx2 = CLAMP(smpEd_Rx2, 0, s->len);
// sanitize sample scroll position
if (smpEd_ScrPos+smpEd_ViewSize > s->len)
{
smpEd_ScrPos = s->len - smpEd_ViewSize;
updateScrPos();
}
if (smpEd_ScrPos < 0)
{
smpEd_ScrPos = 0;
updateScrPos();
if (smpEd_ViewSize > s->len)
{
smpEd_ViewSize = s->len;
updateViewSize();
}
}
// handle updating
if (editor.ui.sampleEditorShown)
{
// check if we need to redraw sample data
if (forceSmpRedraw || (old_SmpScrPos != smpEd_ScrPos || old_ViewSize != smpEd_ViewSize))
{
if (editor.ui.sampleEditorShown)
writeWaveform();
old_SmpScrPos = smpEd_ScrPos;
old_ViewSize = smpEd_ViewSize;
if (editor.ui.sampleEditorShown)
writeRange(); // range was overwritten, draw it again
smpEd_OldSmpPosLine = -1;
old_Rx1 = smpEd_Rx1;
old_Rx2 = smpEd_Rx2;
}
// check if we need to write new range
if (old_Rx1 != smpEd_Rx1 || old_Rx2 != smpEd_Rx2)
{
tmpRx1 = smpEd_Rx1;
tmpRx2 = smpEd_Rx2;
// remove old range
smpEd_Rx1 = old_Rx1;
smpEd_Rx2 = old_Rx2;
if (editor.ui.sampleEditorShown)
writeRange();
// write new range
smpEd_Rx1 = tmpRx1;
smpEd_Rx2 = tmpRx2;
if (editor.ui.sampleEditorShown)
writeRange();
old_Rx1 = smpEd_Rx1;
old_Rx2 = smpEd_Rx2;
}
fixRepeatGadgets();
}
if (editor.ui.sampleEditorShown)
fixSampleDrag();
updateSampleEditor();
}
static void setSampleRange(int32_t start, int32_t end)
{
sampleTyp *s;
if (instr[editor.curInstr] == NULL)
{
smpEd_Rx1 = 0;
smpEd_Rx2 = 0;
return;
}
s = &instr[editor.curInstr]->samp[editor.curSmp];
if (start < 0)
start = 0;
if (end < 0)
end = 0;
// kludge so that you can mark the last sample of what we see
// XXX: This doesn't seem to work properly!
if (end == SCREEN_W-1)
{
if (smpEd_ViewSize < SAMPLE_AREA_WIDTH) // zoomed in
end += 2;
else if (smpEd_ScrPos+smpEd_ViewSize >= s->len)
end++;
}
smpEd_Rx1 = scr2SmpPos(start);
smpEd_Rx2 = scr2SmpPos(end);
// 2-byte align if sample is 16-bit
if (s->typ & 16)
{
smpEd_Rx1 &= 0xFFFFFFFE;
smpEd_Rx2 &= 0xFFFFFFFE;
}
}
void updateSampleEditorSample(void)
{
smpEd_Rx1 = 0;
smpEd_Rx2 = 0;
smpEd_ScrPos = 0;
updateScrPos();
if (instr[editor.curInstr] == NULL)
smpEd_ViewSize = 0;
else
smpEd_ViewSize = instr[editor.curInstr]->samp[editor.curSmp].len;
updateViewSize();
writeSample(true);
}
void updateSampleEditor(void)
{
char noteChar1, noteChar2, octaChar;
uint8_t note, typ;
int32_t sampleLen;
if (!editor.ui.sampleEditorShown)
return;
if (instr[editor.curInstr] == NULL)
{
typ = 0;
sampleLen = 0;
}
else
{
typ = instr[editor.curInstr]->samp[editor.curSmp].typ;
sampleLen = instr[editor.curInstr]->samp[editor.curSmp].len;
}
// sample bit depth radio buttons
uncheckRadioButtonGroup(RB_GROUP_SAMPLE_DEPTH);
if (typ & 16)
radioButtons[RB_SAMPLE_16BIT].state = RADIOBUTTON_CHECKED;
else
radioButtons[RB_SAMPLE_8BIT].state = RADIOBUTTON_CHECKED;
showRadioButtonGroup(RB_GROUP_SAMPLE_DEPTH);
// sample loop radio buttons
uncheckRadioButtonGroup(RB_GROUP_SAMPLE_LOOP);
if (typ & 3)
{
if (typ & 2)
radioButtons[RB_SAMPLE_PINGPONG_LOOP].state = RADIOBUTTON_CHECKED;
else
radioButtons[RB_SAMPLE_FORWARD_LOOP].state = RADIOBUTTON_CHECKED;
}
else
{
radioButtons[RB_SAMPLE_NO_LOOP].state = RADIOBUTTON_CHECKED;
}
showRadioButtonGroup(RB_GROUP_SAMPLE_LOOP);
// draw sample play note
note = (editor.smpEd_NoteNr - 1) % 12;
if (config.ptnAcc == 0)
{
noteChar1 = sharpNote1Char[note];
noteChar2 = sharpNote2Char[note];
}
else
{
noteChar1 = flatNote1Char[note];
noteChar2 = flatNote2Char[note];
}
octaChar = '0' + ((editor.smpEd_NoteNr - 1) / 12);
charOutBg(7, 369, PAL_FORGRND, PAL_BCKGRND, noteChar1);
charOutBg(15, 369, PAL_FORGRND, PAL_BCKGRND, noteChar2);
charOutBg(23, 369, PAL_FORGRND, PAL_BCKGRND, octaChar);
// draw sample display/length
hexOutBg(536, 350, PAL_FORGRND, PAL_DESKTOP, smpEd_ViewSize, 8);
hexOutBg(536, 362, PAL_FORGRND, PAL_DESKTOP, sampleLen, 8);
}
void sampPlayNoteUp(void)
{
if (editor.smpEd_NoteNr < 96)
{
editor.smpEd_NoteNr++;
updateSampleEditor();
}
}
void sampPlayNoteDown(void)
{
if (editor.smpEd_NoteNr > 1)
{
editor.smpEd_NoteNr--;
updateSampleEditor();
}
}
void scrollSampleDataLeft(void)
{
int32_t scrollAmount, sampleLen;
if (instr[editor.curInstr] == NULL)
sampleLen = 0;
else
sampleLen = instr[editor.curInstr]->samp[editor.curSmp].len;
if (smpEd_ViewSize == 0 || smpEd_ViewSize == sampleLen)
return;
if (mouse.rightButtonPressed)
scrollAmount = smpEd_ViewSize / 14; // rounded from 16 (70Hz)
else
scrollAmount = smpEd_ViewSize / 27; // rounded from 32 (70Hz)
if (scrollAmount < 1)
scrollAmount = 1;
smpEd_ScrPos -= scrollAmount;
if (smpEd_ScrPos < 0)
smpEd_ScrPos = 0;
updateScrPos();
}
void scrollSampleDataRight(void)
{
int32_t scrollAmount, sampleLen;
if (instr[editor.curInstr] == NULL)
sampleLen = 0;
else
sampleLen = instr[editor.curInstr]->samp[editor.curSmp].len;
if (smpEd_ViewSize == 0 || smpEd_ViewSize == sampleLen)
return;
if (mouse.rightButtonPressed)
scrollAmount = smpEd_ViewSize / 14; // was 16 (70Hz->60Hz)
else
scrollAmount = smpEd_ViewSize / 27; // was 32 (70Hz->60Hz)
if (scrollAmount < 1)
scrollAmount = 1;
smpEd_ScrPos += scrollAmount;
if (smpEd_ScrPos+smpEd_ViewSize > sampleLen)
smpEd_ScrPos = sampleLen - smpEd_ViewSize;
updateScrPos();
}
void scrollSampleData(uint32_t pos)
{
int32_t sampleLen;
if (instr[editor.curInstr] == NULL)
sampleLen = 0;
else
sampleLen = instr[editor.curInstr]->samp[editor.curSmp].len;
if (smpEd_ViewSize == 0 || smpEd_ViewSize == sampleLen)
return;
smpEd_ScrPos = (int32_t)pos;
updateScrPos();
}
void sampPlayWave(void)
{
playSample(editor.cursor.ch, editor.curInstr, editor.curSmp, editor.smpEd_NoteNr, 0, 0);
}
void sampPlayDisplay(void)
{
playRange(editor.cursor.ch, editor.curInstr, editor.curSmp, editor.smpEd_NoteNr, 0, 0, smpEd_ScrPos, smpEd_ViewSize);
}
void sampPlayRange(void)
{
playRange(editor.cursor.ch, editor.curInstr, editor.curSmp, editor.smpEd_NoteNr, 0, 0, smpEd_Rx1, smpEd_Rx2 - smpEd_Rx1);
}
void showRange(void)
{
sampleTyp *s;
if (editor.curInstr == 0 || instr[editor.curInstr] == NULL)
return;
s = &instr[editor.curInstr]->samp[editor.curSmp];
if (s->pek == NULL)
return;
if (smpEd_Rx1 < smpEd_Rx2)
{
smpEd_ViewSize = smpEd_Rx2 - smpEd_Rx1;
if (s->typ & 16)
{
if (smpEd_ViewSize < 4)
smpEd_ViewSize = 4;
}
else if (smpEd_ViewSize < 2)
{
smpEd_ViewSize = 2;
}
updateViewSize();
smpEd_ScrPos = smpEd_Rx1;
updateScrPos();
}
else
{
okBox(0, "System message", "Cannot show empty range!");
}
}
void rangeAll(void)
{
if (editor.curInstr == 0 ||
instr[editor.curInstr] == NULL ||
instr[editor.curInstr]->samp[editor.curSmp].pek == NULL)
{
return;
}
smpEd_Rx1 = smpEd_ScrPos;
smpEd_Rx2 = smpEd_ScrPos + smpEd_ViewSize;
}
static void zoomSampleDataIn(int32_t step, int32_t x)
{
int32_t tmp32, minViewSize;
int64_t newScrPos64;
sampleTyp *s;
if (editor.curInstr == 0 ||
instr[editor.curInstr] == NULL ||
instr[editor.curInstr]->samp[editor.curSmp].pek == NULL)
{
return;
}
s = &instr[editor.curInstr]->samp[editor.curSmp];
minViewSize = (s->typ & 16) ? 4 : 2;
if (old_ViewSize <= minViewSize)
return;
if (step < 1)
step = 1;
smpEd_ViewSize = old_ViewSize - (step * 2);
if (smpEd_ViewSize < minViewSize)
smpEd_ViewSize = minViewSize;
updateViewSize();
tmp32 = (x - (SAMPLE_AREA_WIDTH / 2)) * step;
tmp32 += SAMPLE_AREA_WIDTH/4; // rounding bias
tmp32 /= SAMPLE_AREA_WIDTH/2;
step += tmp32;
newScrPos64 = old_SmpScrPos + step;
if (newScrPos64+smpEd_ViewSize > s->len)
newScrPos64 = s->len - smpEd_ViewSize;
smpEd_ScrPos = newScrPos64 & 0xFFFFFFFF;
updateScrPos();
}
static void zoomSampleDataOut(int32_t step, int32_t x)
{
int32_t tmp32;
int64_t newViewSize64;
sampleTyp *s;
if (editor.curInstr == 0 ||
instr[editor.curInstr] == NULL ||
instr[editor.curInstr]->samp[editor.curSmp].pek == NULL)
{
return;
}
s = &instr[editor.curInstr]->samp[editor.curSmp];
if (old_ViewSize == s->len)
return;
if (step < 1)
step = 1;
newViewSize64 = (int64_t)old_ViewSize + (step * 2);
if (newViewSize64 > s->len)
{
smpEd_ViewSize = s->len;
smpEd_ScrPos = 0;
}
else
{
tmp32 = (x - (SAMPLE_AREA_WIDTH / 2)) * step;
tmp32 += SAMPLE_AREA_WIDTH/4; // rounding bias
tmp32 /= SAMPLE_AREA_WIDTH/2;
step += tmp32;
smpEd_ViewSize = newViewSize64 & 0xFFFFFFFF;
smpEd_ScrPos = old_SmpScrPos - step;
if (smpEd_ScrPos < 0)
smpEd_ScrPos = 0;
if ((smpEd_ScrPos + smpEd_ViewSize) > s->len)
smpEd_ScrPos = s->len - smpEd_ViewSize;
}
updateViewSize();
updateScrPos();
}
void mouseZoomSampleDataIn(void)
{
if (editor.curInstr == 0 ||
instr[editor.curInstr] == NULL ||
instr[editor.curInstr]->samp[editor.curSmp].pek == NULL)
{
return;
}
zoomSampleDataIn((old_ViewSize + 5) / 10, mouse.x);
}
void mouseZoomSampleDataOut(void)
{
if (editor.curInstr == 0 ||
instr[editor.curInstr] == NULL ||
instr[editor.curInstr]->samp[editor.curSmp].pek == NULL)
{
return;
}
zoomSampleDataOut((old_ViewSize + 5) / 10, mouse.x);
}
void zoomOut(void)
{
sampleTyp *s;
if (editor.curInstr == 0 ||
instr[editor.curInstr] == NULL ||
instr[editor.curInstr]->samp[editor.curSmp].pek == NULL)
{
return;
}
s = &instr[editor.curInstr]->samp[editor.curSmp];
if (old_ViewSize == s->len)
return;
int32_t tmp32 = old_ViewSize;
tmp32++; // rounding bias
tmp32 >>= 1;
smpEd_ScrPos = old_SmpScrPos - tmp32;
if (smpEd_ScrPos < 0)
smpEd_ScrPos = 0;
smpEd_ViewSize = old_ViewSize * 2;
if (smpEd_ViewSize < old_ViewSize)
{
smpEd_ViewSize = s->len;
smpEd_ScrPos = 0;
}
else if (smpEd_ViewSize+smpEd_ScrPos > s->len)
{
smpEd_ViewSize = s->len - smpEd_ScrPos;
}
updateViewSize();
updateScrPos();
}
void showAll(void)
{
if (editor.curInstr == 0 ||
instr[editor.curInstr] == NULL ||
instr[editor.curInstr]->samp[editor.curSmp].pek == NULL)
{
return;
}
smpEd_ScrPos = 0;
updateScrPos();
smpEd_ViewSize = instr[editor.curInstr]->samp[editor.curSmp].len;
updateViewSize();
}
void saveRange(void)
{
UNICHAR *filenameU;
if (editor.curInstr == 0 ||
instr[editor.curInstr] == NULL ||
instr[editor.curInstr]->samp[editor.curSmp].pek == NULL)
{
return;
}
if (smpEd_Rx1 >= smpEd_Rx2)
{
okBox(0, "System message", "No range specified!");
return;
}
smpEd_SysReqText[0] = '\0';
if (inputBox(1, "Enter filename:", smpEd_SysReqText, sizeof (smpEd_SysReqText) - 1) != 1)
return;
if (smpEd_SysReqText[0] == '\0')
{
okBox(0, "System message", "Filename can't be empty!");
return;
}
if (smpEd_SysReqText[0] == '.')
{
okBox(0, "System message", "The very first character in the filename can't be '.' (dot)!");
return;
}
if (strpbrk(smpEd_SysReqText, "\\/:*?\"<>|") != NULL)
{
okBox(0, "System message", "The filename can't contain the following characters: \\ / : * ? \" < > |");
return;
}
switch (editor.sampleSaveMode)
{
case SMP_SAVE_MODE_RAW: changeFilenameExt(smpEd_SysReqText, ".raw", sizeof (smpEd_SysReqText) - 1); break;
case SMP_SAVE_MODE_IFF: changeFilenameExt(smpEd_SysReqText, ".iff", sizeof (smpEd_SysReqText) - 1); break;
default: case SMP_SAVE_MODE_WAV: changeFilenameExt(smpEd_SysReqText, ".wav", sizeof (smpEd_SysReqText) - 1); break;
}
filenameU = cp437ToUnichar(smpEd_SysReqText);
if (filenameU == NULL)
{
okBox(0, "System message", "Error converting string locale!");
return;
}
saveSample(filenameU, SAVE_RANGE);
free(filenameU);
}
static bool cutRange(bool cropMode, int32_t r1, int32_t r2)
{
int8_t *newPtr;
int32_t len, repE;
sampleTyp *s = getCurSample();
if (s == NULL)
return false;
assert(!(s->typ & 16) || (!(r1 & 1) && !(r2 & 1) && !(s->len & 1)));
if (!cropMode)
{
if (editor.curInstr == 0 || s->pek == NULL || s->len == 0)
return false;
pauseAudio();
restoreSample(s);
if (config.smpCutToBuffer)
{
if (!getCopyBuffer(r2 - r1))
{
fixSample(s);
resumeAudio();
okBoxThreadSafe(0, "System message", "Not enough memory!");
return false;
}
memcpy(smpCopyBuff, &s->pek[r1], r2 - r1);
smpCopyBits = (s->typ & 16) ? 16 : 8;
}
}
memmove(&s->pek[r1], &s->pek[r2], s->len - r2);
len = s->len - r2 + r1;
if (len > 0)
{
newPtr = (int8_t *)realloc(s->origPek, len + LOOP_FIX_LEN);
if (newPtr == NULL)
{
freeSample(editor.curInstr, editor.curSmp);
editor.updateCurSmp = true;
if (!cropMode)
resumeAudio();
okBoxThreadSafe(0, "System message", "Not enough memory!");
return false;
}
s->origPek = newPtr;
s->pek = s->origPek + SMP_DAT_OFFSET;
s->len = len;
repE = s->repS + s->repL;
if (s->repS > r1)
{
s->repS -= r2 - r1;
if (s->repS < r1)
s->repS = r1;
}
if (repE > r1)
{
repE -= r2 - r1;
if (repE < r1)
repE = r1;
}
s->repL = repE - s->repS;
if (s->repL < 0)
s->repL = 0;
if (s->repS+s->repL > len)
s->repL = len - s->repS;
// 2-byte align loop points if sample is 16-bit
if (s->typ & 16)
{
s->repL &= 0xFFFFFFFE;
s->repS &= 0xFFFFFFFE;
}
if (s->repL == 0)
{
s->repS = 0;
s->typ &= ~3; // disable loop
}
if (!cropMode)
fixSample(s);
}
else
{
freeSample(editor.curInstr, editor.curSmp);
editor.updateCurSmp = true;
}
if (!cropMode)
{
resumeAudio();
setSongModifiedFlag();
setMouseBusy(false);
smpEd_Rx2 = r1;
writeSampleFlag = true;
}
return true;
}
static int32_t SDLCALL sampCutThread(void *ptr)
{
(void)ptr;
if (!cutRange(false, smpEd_Rx1, smpEd_Rx2))
okBoxThreadSafe(0, "System message", "Not enough memory! (Disable \"cut to buffer\")");
else
writeSampleFlag = true;
return true;
}
void sampCut(void)
{
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0 || smpEd_Rx2 == 0 || smpEd_Rx2 < smpEd_Rx1)
return;
mouseAnimOn();
thread = SDL_CreateThread(sampCutThread, NULL, NULL);
if (thread == NULL)
{
okBox(0, "System message", "Couldn't create thread!");
return;
}
SDL_DetachThread(thread);
}
static int32_t SDLCALL sampCopyThread(void *ptr)
{
sampleTyp *s = getCurSample();
(void)ptr;
assert(s != NULL && (!(s->typ & 16) || (!(smpEd_Rx1 & 1) && !(smpEd_Rx2 & 1))));
if (!getCopyBuffer(smpEd_Rx2 - smpEd_Rx1))
{
okBoxThreadSafe(0, "System message", "Not enough memory!");
return true;
}
restoreSample(s);
memcpy(smpCopyBuff, &s->pek[smpEd_Rx1], smpEd_Rx2 - smpEd_Rx1);
fixSample(s);
smpCopyBits = (s->typ & 16) ? 16 : 8;
setMouseBusy(false);
return true;
}
void sampCopy(void)
{
sampleTyp *s = getCurSample();
if (s == NULL || s->origPek == NULL || s->len <= 0 || smpEd_Rx2 == 0 || smpEd_Rx2 < smpEd_Rx1)
return;
mouseAnimOn();
thread = SDL_CreateThread(sampCopyThread, NULL, NULL);
if (thread == NULL)
{
okBox(0, "System message", "Couldn't create thread!");
return;
}
SDL_DetachThread(thread);
}
static void pasteOverwrite(sampleTyp *s)
{
int8_t *p = (int8_t *)malloc(smpCopySize + LOOP_FIX_LEN);
if (p == NULL)
{
okBoxThreadSafe(0, "System message", "Not enough memory!");
return;
}
pauseAudio();
if (s->origPek != NULL)
free(s->origPek);
memset(s, 0, sizeof (sampleTyp));
s->origPek = p;
s->pek = p + SMP_DAT_OFFSET;
memcpy(s->pek, smpCopyBuff, smpCopySize);
s->len = smpCopySize;
s->vol = 64;
s->pan = 128;
s->typ = (smpCopyBits == 16) ? 16 : 0;
fixSample(s);
resumeAudio();
editor.updateCurSmp = true;
setSongModifiedFlag();
setMouseBusy(false);
}
static void pasteCopiedData(int8_t *pek, int32_t offset, int32_t length, bool smpIs16Bit)
{
if (smpIs16Bit)
{
// destination sample = 16-bit
if (smpCopyBits == 16)
{
// src/dst = equal bits, copy directly
memcpy(&pek[offset], smpCopyBuff, length);
}
else
{
// convert copy data to 16-bit then paste
int16_t *ptr16 = (int16_t *)&pek[offset];
int32_t len32 = length >> 1;
for (int32_t i = 0; i < len32; i++)
ptr16[i] = smpCopyBuff[i] << 8;
}
}
else
{
// destination sample = 8-bit
if (smpCopyBits == 8)
{
// src/dst = equal bits, copy directly
memcpy(&pek[offset], smpCopyBuff, length);
}
else
{
// convert copy data to 8-bit then paste
int8_t *ptr8 = (int8_t *)&pek[offset];
int16_t *ptr16 = (int16_t *)smpCopyBuff;
for (int32_t i = 0; i < length; i++)
ptr8[i] = ptr16[i] >> 8;
}
}
}
static int32_t SDLCALL sampPasteThread(void *ptr)
{
int8_t *p;
int32_t newLength, realCopyLen;
sampleTyp *s;
(void)ptr;
if (instr[editor.curInstr] == NULL && !allocateInstr(editor.curInstr))
{
okBoxThreadSafe(0, "System message", "Not enough memory!");
return true;
}
s = getCurSample();
if (smpEd_Rx2 == 0 || s == NULL || s->pek == NULL)
{
pasteOverwrite(s);
return true;
}
bool smpIs16Bit = (s->typ >> 4) & 1;
assert(!smpIs16Bit || (!(smpEd_Rx1 & 1) && !(smpEd_Rx2 & 1) && !(s->len & 1)));
if (s->len+smpCopySize > MAX_SAMPLE_LEN)
{
okBoxThreadSafe(0, "System message", "Not enough room in sample!");
return true;
}
realCopyLen = smpCopySize;
if (smpIs16Bit)
{
// destination sample is 16-bit
if (smpCopyBits == 8) // copy buffer is 8-bit, multiply length by 2
realCopyLen <<= 1;
}
else
{
// destination sample is 8-bit
if (smpCopyBits == 16) // copy buffer is 16-bit, divide length by 2
realCopyLen >>= 1;
}
newLength = s->len + realCopyLen - (smpEd_Rx2 - smpEd_Rx1);
if (newLength <= 0)
return true;
if (newLength > MAX_SAMPLE_LEN)
{
okBoxThreadSafe(0, "System message", "Not enough room in sample!");
return true;
}
p = (int8_t *)malloc(newLength + LOOP_FIX_LEN);
if (p == NULL)
{
okBoxThreadSafe(0, "System message", "Not enough memory!");
return true;
}
int8_t *newPek = p + SMP_DAT_OFFSET;
pauseAudio();
restoreSample(s);
// paste left part of original sample
if (smpEd_Rx1 > 0)
memcpy(newPek, s->pek, smpEd_Rx1);
// paste copied data
pasteCopiedData(newPek, smpEd_Rx1, realCopyLen, smpIs16Bit);
// paste right part of original sample
if (smpEd_Rx2 < s->len)
memmove(&newPek[smpEd_Rx1+realCopyLen], &s->pek[smpEd_Rx2], s->len - smpEd_Rx2);
free(s->origPek);
// adjust loop points if necessary
if (smpEd_Rx2-smpEd_Rx1 != realCopyLen)
{
int32_t loopAdjust = realCopyLen - (smpEd_Rx1 - smpEd_Rx2);
if (s->repS > smpEd_Rx2)
{
s->repS += loopAdjust;
s->repL -= loopAdjust;
}
if (s->repS+s->repL > smpEd_Rx2)
s->repL += loopAdjust;
if (s->repS > newLength)
{
s->repS = 0;
s->repL = 0;
}
if (s->repS+s->repL > newLength)
s->repL = newLength - s->repS;
// align loop points if sample is 16-bit
if (smpIs16Bit)
{
s->repL &= 0xFFFFFFFE;
s->repS &= 0xFFFFFFFE;
}
}
s->len = newLength;
s->origPek = p;
s->pek = s->origPek + SMP_DAT_OFFSET;
fixSample(s);
resumeAudio();
setSongModifiedFlag();
setMouseBusy(false);
// set new range
smpEd_Rx2 = smpEd_Rx1 + realCopyLen;
// align sample marking points if sample is 16-bit
if (smpIs16Bit)
{
smpEd_Rx1 &= 0xFFFFFFFE;
smpEd_Rx2 &= 0xFFFFFFFE;
}
writeSampleFlag = true;
return true;
}
void sampPaste(void)
{
if (editor.curInstr == 0 || smpEd_Rx2 < smpEd_Rx1 || smpCopyBuff == NULL || smpCopySize == 0)
return;
if (smpEd_Rx2 == 0) // no sample data marked, overwrite sample with copy buffer
{
sampleTyp *s = getCurSample();
if (s != NULL && s->pek != NULL)
{
if (okBox(2, "System request", "The current sample is not empty. Do you really want to overwrite it?") != 1)
return;
}
}
mouseAnimOn();
thread = SDL_CreateThread(sampPasteThread, NULL, NULL);
if (thread == NULL)
{
okBox(0, "System message", "Couldn't create thread!");
return;
}
SDL_DetachThread(thread);
}
static int32_t SDLCALL sampCropThread(void *ptr)
{
int32_t r1, r2;
sampleTyp *s = getCurSample();
(void)ptr;
assert(!(s->typ & 16) || (!(smpEd_Rx1 & 1) && !(smpEd_Rx2 & 1) && !(s->len & 1)));
r1 = smpEd_Rx1;
r2 = smpEd_Rx2;
pauseAudio();
restoreSample(s);
if (!cutRange(true, 0, r1) || !cutRange(true, r2 - r1, s->len))
{
fixSample(s);
resumeAudio();
return true;
}
fixSample(s);
resumeAudio();
r1 = 0;
r2 = s->len;
if (s->typ & 16)
r2 &= 0xFFFFFFFE;
setSongModifiedFlag();
setMouseBusy(false);
smpEd_Rx1 = r1;
smpEd_Rx2 = r2;
writeSampleFlag = true;
return true;
}
void sampCrop(void)
{
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0 || smpEd_Rx1 >= smpEd_Rx2)
return;
if (smpEd_Rx1 == 0 && smpEd_Rx2 >= s->len)
return; // no need to crop (the whole sample is marked)
mouseAnimOn();
thread = SDL_CreateThread(sampCropThread, NULL, NULL);
if (thread == NULL)
{
okBox(0, "System message", "Couldn't create thread!");
return;
}
SDL_DetachThread(thread);
}
void sampXFade(void)
{
bool is16Bit;
uint8_t t;
int16_t c ,d;
int32_t tmp32, i, x1, x2, y1, y2, a, b, d1, d2, d3, dist;
double dR, dS1, dS2, dS3, dS4;
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
assert(!(s->typ & 16) || (!(smpEd_Rx1 & 1) && !(smpEd_Rx2 & 1) && !(s->len & 1)));
t = s->typ;
// check if the sample has the loop flag enabled
if ((t & 3) == 0)
{
okBox(0, "System message", "X-Fade can only be used on a loop-enabled sample!");
return;
}
// check if we selected a range
if (smpEd_Rx2 == 0)
{
okBox(0, "System message", "No range selected! Make a small range that includes loop start or loop end.");
return;
}
// check if we selected a valid range length
if (smpEd_Rx2-smpEd_Rx1 <= 2)
{
okBox(0, "System message", "Invalid range!");
return;
}
x1 = smpEd_Rx1;
x2 = smpEd_Rx2;
is16Bit = (t & 16) ? true : false;
if ((t & 3) >= 2)
{
// pingpong loop
y1 = s->repS;
if (x1 <= y1)
{
// first loop point
if (x2 <= y1 || x2 >= s->repS+s->repL)
{
okBox(0, "System message", "Not enough sample data outside loop!");
return;
}
d1 = y1 - x1;
if (x2-y1 > d1)
d1 = x2 - y1;
d2 = y1 - x1;
d3 = x2 - y1;
if (d1 < 1 || d2 < 1 || d3 < 1)
{
okBox(0, "System message", "Not enough sample data outside loop!");
return;
}
if (y1-d1 < 0 || y1+d1 >= s->len)
{
okBox(0, "System message", "Invalid range!");
return;
}
dist = 1;
if (is16Bit)
dist++;
pauseAudio();
restoreSample(s);
i = 0;
while (i < d1)
{
a = getSampleValueNr(s->pek, t, y1 + dist * (-i - 1));
b = getSampleValueNr(s->pek, t, y1 + dist * i);
dS1 = 1.0 - i / (double)d2; dS2 = 2.0 - dS1;
dS3 = 1.0 - i / (double)d3; dS4 = 2.0 - dS3;
tmp32 = (int32_t)round((a * dS2 + b * dS1) / (dS1 + dS2));
c = (int16_t)tmp32;
tmp32 = (int32_t)round((b * dS4 + a * dS3) / (dS3 + dS4));
d = (int16_t)tmp32;
if (i < d2) putSampleValueNr(s->pek, t, y1 + dist * (-i - 1), c);
if (i < d3) putSampleValueNr(s->pek, t, y1 + dist * i, d);
i += dist;
}
fixSample(s);
resumeAudio();
}
else
{
// last loop point
y1 += s->repL;
if (x1 >= y1 || x2 <= y1 || x2 >= s->len)
{
okBox(0, "System message", "Not enough sample data outside loop!");
return;
}
d1 = y1 - x1;
if (x2-y1 > d1)
d1 = x2 - y1;
d2 = y1 - x1;
d3 = x2 - y1;
if (d1 < 1 || d2 < 1 || d3 < 1)
{
okBox(0, "System message", "Not enough sample data outside loop!");
return;
}
if (y1-d1 < 0 || y1+d1 >= s->len)
{
okBox(0, "System message", "Invalid range!");
return;
}
dist = is16Bit ? 2 : 1;
pauseAudio();
restoreSample(s);
i = 0;
while (i < d1)
{
a = getSampleValueNr(s->pek, t, y1 - i - dist);
b = getSampleValueNr(s->pek, t, y1 + i);
dS1 = 1.0 - i / (double)d2; dS2 = 2.0 - dS1;
dS3 = 1.0 - i / (double)d3; dS4 = 2.0 - dS3;
tmp32 = (int32_t)round((a * dS2 + b * dS1) / (dS1 + dS2));
c = (int16_t)tmp32;
tmp32 = (int32_t)round((b * dS4 + a * dS3) / (dS3 + dS4));
d = (int16_t)tmp32;
if (i < d2) putSampleValueNr(s->pek, t, y1 - i - dist, c);
if (i < d3) putSampleValueNr(s->pek, t, y1 + i, d);
i += dist;
}
fixSample(s);
resumeAudio();
}
}
else
{
// standard loop
if (x1 > s->repS)
{
x1 -= s->repL;
x2 -= s->repL;
}
if (x1 < 0 || x2 <= x1 || x2 >= s->len)
{
okBox(0, "System message", "Not enough sample data outside loop!");
return;
}
i = (x2 - x1 + 1) / 2;
y1 = s->repS - i;
y2 = s->repS + s->repL - i;
if (t & 16)
{
y1 &= 0xFFFFFFFE;
y2 &= 0xFFFFFFFE;
}
if (y1 < 0 || y2+(x2-x1) >= s->len)
{
okBox(0, "System message", "Invalid range!");
return;
}
d1 = x2 - x1;
d2 = s->repS - y1;
d3 = x2 - x1 - d2;
if (y1+(x2-x1) <= s->repS || d1 == 0 || d3 == 0 || d1 > s->repL)
{
okBox(0, "System message", "Not enough sample data outside loop!");
return;
}
dR = (s->repS - i) / (double)(x2 - x1);
dist = is16Bit ? 2 : 1;
pauseAudio();
restoreSample(s);
i = 0;
while (i < x2-x1)
{
a = getSampleValueNr(s->pek, t, y1 + i);
b = getSampleValueNr(s->pek, t, y2 + i);
dS2 = i / (double)d1;
dS1 = 1.0 - dS2;
if (y1+i < s->repS)
{
dS3 = 1.0 - (1.0 - dR) * i / d2;
dS4 = dR * i / d2;
tmp32 = (int32_t)round((a * dS3 + b * dS4) / (dS3 + dS4));
c = (int16_t)tmp32;
tmp32 = (int32_t)round((a * dS2 + b * dS1) / (dS1 + dS2));
d = (int16_t)tmp32;
}
else
{
dS3 = 1.0 - (1.0 - dR) * (d1 - i) / d3;
dS4 = dR * (d1 - i) / d3;
tmp32 = (int32_t)round((a * dS2 + b * dS1) / (dS1 + dS2));
c = (int16_t)tmp32;
tmp32 = (int32_t)round((a * dS4 + b * dS3) / (dS3 + dS4));
d = (int16_t)tmp32;
}
putSampleValueNr(s->pek, t, y1 + i, c);
putSampleValueNr(s->pek, t, y2 + i, d);
i += dist;
}
fixSample(s);
resumeAudio();
}
writeSample(true);
setSongModifiedFlag();
}
void rbSampleNoLoop(void)
{
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
lockMixerCallback();
restoreSample(s);
s->typ &= ~3;
fixSample(s);
unlockMixerCallback();
updateSampleEditor();
writeSample(true);
setSongModifiedFlag();
}
void rbSampleForwardLoop(void)
{
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
lockMixerCallback();
restoreSample(s);
s->typ = (s->typ & ~3) | 1;
if (s->repL+s->repS == 0)
{
s->repS = 0;
s->repL = s->len;
}
fixSample(s);
unlockMixerCallback();
updateSampleEditor();
writeSample(true);
setSongModifiedFlag();
}
void rbSamplePingpongLoop(void)
{
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
lockMixerCallback();
restoreSample(s);
s->typ = (s->typ & ~3) | 2;
if (s->repL+s->repS == 0)
{
s->repS = 0;
s->repL = s->len;
}
fixSample(s);
unlockMixerCallback();
updateSampleEditor();
writeSample(true);
setSongModifiedFlag();
}
static int32_t SDLCALL convSmp8Bit(void *ptr)
{
int8_t *dst8, *newPtr;
int16_t *src16;
int32_t i, newLen;
sampleTyp *s = getCurSample();
(void)ptr;
pauseAudio();
restoreSample(s);
src16 = (int16_t *)s->pek;
dst8 = s->pek;
newLen = s->len >> 1;
for (i = 0; i < newLen; i++)
dst8[i] = src16[i] >> 8;
assert(s->origPek != NULL);
newPtr = (int8_t *)realloc(s->origPek, newLen + LOOP_FIX_LEN);
if (newPtr != NULL)
{
s->origPek = newPtr;
s->pek = s->origPek + SMP_DAT_OFFSET;
}
s->repL >>= 1;
s->repS >>= 1;
s->len >>= 1;
s->typ &= ~16; // remove 16-bit flag
fixSample(s);
resumeAudio();
editor.updateCurSmp = true;
setSongModifiedFlag();
setMouseBusy(false);
return true;
}
void rbSample8bit(void)
{
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
if (okBox(2, "System request", "Convert sampledata?") == 1)
{
mouseAnimOn();
thread = SDL_CreateThread(convSmp8Bit, NULL, NULL);
if (thread == NULL)
{
okBox(0, "System message", "Couldn't create thread!");
return;
}
SDL_DetachThread(thread);
return;
}
else
{
lockMixerCallback();
restoreSample(s);
s->typ &= ~16; // remove 16-bit flag
fixSample(s);
unlockMixerCallback();
updateSampleEditorSample();
updateSampleEditor();
setSongModifiedFlag();
}
}
static int32_t SDLCALL convSmp16Bit(void *ptr)
{
int8_t *src8, *newPtr;
int16_t smp16, *dst16;
int32_t i;
sampleTyp *s = getCurSample();
(void)ptr;
pauseAudio();
restoreSample(s);
assert(s->origPek != NULL);
newPtr = (int8_t *)realloc(s->origPek, (s->len * 2) + LOOP_FIX_LEN);
if (newPtr == NULL)
{
okBoxThreadSafe(0, "System message", "Not enough memory!");
return true;
}
else
{
s->origPek = newPtr;
s->pek = s->origPek + SMP_DAT_OFFSET;
}
src8 = s->pek;
dst16 = (int16_t *)s->pek;
for (i = s->len-1; i >= 0; i--)
{
smp16 = src8[i] << 8;
dst16[i] = smp16;
}
s->len <<= 1;
s->repL <<= 1;
s->repS <<= 1;
s->typ |= 16; // add 16-bit flag
fixSample(s);
resumeAudio();
editor.updateCurSmp = true;
setSongModifiedFlag();
setMouseBusy(false);
return true;
}
void rbSample16bit(void)
{
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
if (okBox(2, "System request", "Convert sampledata?") == 1)
{
mouseAnimOn();
thread = SDL_CreateThread(convSmp16Bit, NULL, NULL);
if (thread == NULL)
{
okBox(0, "System message", "Couldn't create thread!");
return;
}
SDL_DetachThread(thread);
return;
}
else
{
lockMixerCallback();
restoreSample(s);
s->typ |= 16; // add 16-bit flag
// make sure stuff is 2-byte aligned for 16-bit mode
s->repS &= 0xFFFFFFFE;
s->repL &= 0xFFFFFFFE;
s->len &= 0xFFFFFFFE;
fixSample(s);
unlockMixerCallback();
updateSampleEditorSample();
updateSampleEditor();
setSongModifiedFlag();
}
}
void clearSample(void)
{
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
if (okBox(1, "System request", "Clear sample?") != 1)
return;
freeSample(editor.curInstr, editor.curSmp);
updateNewSample();
setSongModifiedFlag();
}
void sampMin(void)
{
int8_t *newPtr;
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
if (okBox(1, "System request", "Minimize sample?") != 1)
return;
bool hasLoop = s->typ & 3;
if (hasLoop && s->len > s->repS+s->repL && s->repL < s->len)
{
lockMixerCallback();
s->len = s->repS + s->repL;
newPtr = (int8_t *)realloc(s->origPek, s->len + LOOP_FIX_LEN);
if (newPtr != NULL)
{
s->origPek = newPtr;
s->pek = s->origPek + SMP_DAT_OFFSET;
}
// Note: we don't need to make a call to fixSample()
unlockMixerCallback();
updateSampleEditorSample();
updateSampleEditor();
setSongModifiedFlag();
}
}
void sampRepeatUp(void)
{
int32_t repS, repL, addVal, lenSub;
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
if (s->typ & 16)
{
lenSub = 4;
addVal = 2;
}
else
{
lenSub = 2;
addVal = 1;
}
repS = curSmpRepS;
repL = curSmpRepL;
if (repS < s->len-lenSub)
repS += addVal;
if (repS+repL > s->len)
repL = s->len - repS;
curSmpRepS = (s->typ & 16) ? (int32_t)(repS & 0xFFFFFFFE) : repS;
curSmpRepL = (s->typ & 16) ? (int32_t)(repL & 0xFFFFFFFE) : repL;
fixRepeatGadgets();
updateLoopsOnMouseUp = true;
}
void sampRepeatDown(void)
{
int32_t repS;
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
if (s->typ & 16)
repS = curSmpRepS - 2;
else
repS = curSmpRepS - 1;
if (repS < 0)
repS = 0;
curSmpRepS = (s->typ & 16) ? (int32_t)(repS & 0xFFFFFFFE) : repS;
fixRepeatGadgets();
updateLoopsOnMouseUp = true;
}
void sampReplenUp(void)
{
int32_t repL;
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
if (s->typ & 16)
repL = curSmpRepL + 2;
else
repL = curSmpRepL + 1;
if (curSmpRepS+repL > s->len)
repL = s->len - curSmpRepS;
curSmpRepL = (s->typ & 16) ? (int32_t)(repL & 0xFFFFFFFE) : repL;
fixRepeatGadgets();
updateLoopsOnMouseUp = true;
}
void sampReplenDown(void)
{
int32_t repL;
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
if (s->typ & 16)
repL = curSmpRepL - 2;
else
repL = curSmpRepL - 1;
if (repL < 0)
repL = 0;
curSmpRepL = (s->typ & 16) ? (int32_t)(repL & 0xFFFFFFFE) : repL;
fixRepeatGadgets();
updateLoopsOnMouseUp = true;
}
void hideSampleEditor(void)
{
hidePushButton(PB_SAMP_SCROLL_LEFT);
hidePushButton(PB_SAMP_SCROLL_RIGHT);
hidePushButton(PB_SAMP_PNOTE_UP);
hidePushButton(PB_SAMP_PNOTE_DOWN);
hidePushButton(PB_SAMP_STOP);
hidePushButton(PB_SAMP_PWAVE);
hidePushButton(PB_SAMP_PRANGE);
hidePushButton(PB_SAMP_PDISPLAY);
hidePushButton(PB_SAMP_SHOW_RANGE);
hidePushButton(PB_SAMP_RANGE_ALL);
hidePushButton(PB_SAMP_CLR_RANGE);
hidePushButton(PB_SAMP_ZOOM_OUT);
hidePushButton(PB_SAMP_SHOW_ALL);
hidePushButton(PB_SAMP_SAVE_RNG);
hidePushButton(PB_SAMP_CUT);
hidePushButton(PB_SAMP_COPY);
hidePushButton(PB_SAMP_PASTE);
hidePushButton(PB_SAMP_CROP);
hidePushButton(PB_SAMP_VOLUME);
hidePushButton(PB_SAMP_XFADE);
hidePushButton(PB_SAMP_EXIT);
hidePushButton(PB_SAMP_CLEAR);
hidePushButton(PB_SAMP_MIN);
hidePushButton(PB_SAMP_REPEAT_UP);
hidePushButton(PB_SAMP_REPEAT_DOWN);
hidePushButton(PB_SAMP_REPLEN_UP);
hidePushButton(PB_SAMP_REPLEN_DOWN);
hideRadioButtonGroup(RB_GROUP_SAMPLE_LOOP);
hideRadioButtonGroup(RB_GROUP_SAMPLE_DEPTH);
hideScrollBar(SB_SAMP_SCROLL);
editor.ui.sampleEditorShown = false;
hideSprite(SPRITE_LEFT_LOOP_PIN);
hideSprite(SPRITE_RIGHT_LOOP_PIN);
}
void exitSampleEditor(void)
{
hideSampleEditor();
if (editor.ui.sampleEditorExtShown)
hideSampleEditorExt();
showPatternEditor();
}
void showSampleEditor(void)
{
if (editor.ui.extended)
exitPatternEditorExtended();
hideInstEditor();
hidePatternEditor();
editor.ui.sampleEditorShown = true;
drawFramework(0, 329, 632, 17, FRAMEWORK_TYPE1);
drawFramework(0, 346, 115, 54, FRAMEWORK_TYPE1);
drawFramework(115, 346, 133, 54, FRAMEWORK_TYPE1);
drawFramework(248, 346, 49, 54, FRAMEWORK_TYPE1);
drawFramework(297, 346, 56, 54, FRAMEWORK_TYPE1);
drawFramework(353, 346, 74, 54, FRAMEWORK_TYPE1);
drawFramework(427, 346, 205, 54, FRAMEWORK_TYPE1);
drawFramework(2, 366, 34, 15, FRAMEWORK_TYPE2);
textOutShadow(5, 352, PAL_FORGRND, PAL_DSKTOP2, "Play:");
textOutShadow(371, 352, PAL_FORGRND, PAL_DSKTOP2, "No loop");
textOutShadow(371, 369, PAL_FORGRND, PAL_DSKTOP2, "Forward");
textOutShadow(371, 386, PAL_FORGRND, PAL_DSKTOP2, "Pingpong");
textOutShadow(446, 369, PAL_FORGRND, PAL_DSKTOP2, "8-bit");
textOutShadow(445, 384, PAL_FORGRND, PAL_DSKTOP2, "16-bit");
textOutShadow(488, 350, PAL_FORGRND, PAL_DSKTOP2, "Display");
textOutShadow(488, 362, PAL_FORGRND, PAL_DSKTOP2, "Length");
textOutShadow(488, 375, PAL_FORGRND, PAL_DSKTOP2, "Repeat");
textOutShadow(488, 387, PAL_FORGRND, PAL_DSKTOP2, "Replen.");
showPushButton(PB_SAMP_SCROLL_LEFT);
showPushButton(PB_SAMP_SCROLL_RIGHT);
showPushButton(PB_SAMP_PNOTE_UP);
showPushButton(PB_SAMP_PNOTE_DOWN);
showPushButton(PB_SAMP_STOP);
showPushButton(PB_SAMP_PWAVE);
showPushButton(PB_SAMP_PRANGE);
showPushButton(PB_SAMP_PDISPLAY);
showPushButton(PB_SAMP_SHOW_RANGE);
showPushButton(PB_SAMP_RANGE_ALL);
showPushButton(PB_SAMP_CLR_RANGE);
showPushButton(PB_SAMP_ZOOM_OUT);
showPushButton(PB_SAMP_SHOW_ALL);
showPushButton(PB_SAMP_SAVE_RNG);
showPushButton(PB_SAMP_CUT);
showPushButton(PB_SAMP_COPY);
showPushButton(PB_SAMP_PASTE);
showPushButton(PB_SAMP_CROP);
showPushButton(PB_SAMP_VOLUME);
showPushButton(PB_SAMP_XFADE);
showPushButton(PB_SAMP_EXIT);
showPushButton(PB_SAMP_CLEAR);
showPushButton(PB_SAMP_MIN);
showPushButton(PB_SAMP_REPEAT_UP);
showPushButton(PB_SAMP_REPEAT_DOWN);
showPushButton(PB_SAMP_REPLEN_UP);
showPushButton(PB_SAMP_REPLEN_DOWN);
showRadioButtonGroup(RB_GROUP_SAMPLE_LOOP);
showRadioButtonGroup(RB_GROUP_SAMPLE_DEPTH);
showScrollBar(SB_SAMP_SCROLL);
// clear two lines that are never written to when the sampler is open
hLine(0, 173, SAMPLE_AREA_WIDTH, PAL_BCKGRND);
hLine(0, 328, SAMPLE_AREA_WIDTH, PAL_BCKGRND);
updateSampleEditor();
writeSample(true);
}
void toggleSampleEditor(void)
{
hideInstEditor();
if (editor.ui.sampleEditorShown)
{
exitSampleEditor();
}
else
{
hidePatternEditor();
showSampleEditor();
}
}
static void writeSmpXORLine(int32_t x)
{
uint32_t *ptr32;
if (x < 0 || x >= SCREEN_W)
return;
ptr32 = &video.frameBuffer[(174 * SCREEN_W) + x];
for (int32_t y = 0; y < SAMPLE_AREA_HEIGHT; y++)
{
*ptr32 = video.palette[(*ptr32 >> 24) ^ 1]; // ">> 24" to get palette, XOR 1 to switch between normal/inverted mode
ptr32 += SCREEN_W;
}
}
static void writeSamplePosLine(void)
{
uint8_t ins, smp;
int32_t smpPos, scrPos;
lastChInstr_t *c;
assert(editor.curSmpChannel < MAX_VOICES);
c = &lastChInstr[editor.curSmpChannel];
if (c->instrNr == 130) // "Play Wave/Range/Display" in Smp. Ed.
{
ins = editor.curPlayInstr;
smp = editor.curPlaySmp;
}
else
{
ins = c->instrNr;
smp = c->sampleNr;
}
if (editor.curInstr == ins && editor.curSmp == smp)
{
smpPos = getSamplePosition(editor.curSmpChannel);
if (smpPos != -1)
{
// convert sample position to screen position
scrPos = smpPos2Scr(smpPos);
if (scrPos != -1)
{
if (scrPos != smpEd_OldSmpPosLine)
{
writeSmpXORLine(smpEd_OldSmpPosLine); // remove old line
writeSmpXORLine(scrPos); // write new line
}
smpEd_OldSmpPosLine = scrPos;
return;
}
}
}
if (smpEd_OldSmpPosLine != -1)
writeSmpXORLine(smpEd_OldSmpPosLine);
smpEd_OldSmpPosLine = -1;
}
void handleSamplerRedrawing(void)
{
// update sample editor
if (!editor.ui.sampleEditorShown || editor.samplingAudioFlag)
return;
if (writeSampleFlag)
{
writeSampleFlag = false;
writeSample(true);
}
else if (smpEd_Rx1 != old_Rx1 || smpEd_Rx2 != old_Rx2 || smpEd_ScrPos != old_SmpScrPos || smpEd_ViewSize != old_ViewSize)
{
writeSample(false);
}
writeSamplePosLine();
}
static void setLeftLoopPinPos(int32_t x)
{
int32_t repS, repL, newPos;
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
newPos = scr2SmpPos(x) - curSmpRepS;
repS = curSmpRepS + newPos;
repL = curSmpRepL - newPos;
if (repS < 0)
{
repL += repS;
repS = 0;
}
if (repL < 0)
{
repL = 0;
repS = curSmpRepS + curSmpRepL;
}
if (s->typ & 16)
{
repS &= 0xFFFFFFFE;
repL &= 0xFFFFFFFE;
}
curSmpRepS = repS;
curSmpRepL = repL;
fixRepeatGadgets();
updateLoopsOnMouseUp = true;
}
static void setRightLoopPinPos(int32_t x)
{
int32_t repL;
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
repL = scr2SmpPos(x) - curSmpRepS;
if (repL < 0)
repL = 0;
if (repL+curSmpRepS > s->len)
repL = s->len - curSmpRepS;
if (repL < 0)
repL = 0;
if (s->typ & 16)
repL &= 0xFFFFFFFE;
curSmpRepL = repL;
fixRepeatGadgets();
updateLoopsOnMouseUp = true;
}
static void editSampleData(bool mouseButtonHeld)
{
int8_t *ptr8;
int16_t *ptr16;
int32_t mx, my, tmp32, p, vl, tvl, r, rl, rvl, start, end;
double dVal;
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
// ported directly from FT2 and slightly modified
mx = mouse.x;
my = mouse.y;
if (!mouseButtonHeld)
{
pauseAudio();
restoreSample(s);
editor.editSampleFlag = true;
lastDrawX = scr2SmpPos(mx);
if (s->typ & 16)
lastDrawX >>= 1;
if (my == 250) // center
{
lastDrawY = 128;
}
else
{
dVal = (my - 174) * (256.0 / SAMPLE_AREA_HEIGHT);
lastDrawY = (int32_t)(dVal + 0.5);
lastDrawY = CLAMP(lastDrawY, 0, 255);
lastDrawY ^= 0xFF;
}
lastMouseX = mx;
lastMouseY = my;
}
else if (mx == lastMouseX && my == lastMouseY)
{
return; // don't continue if we didn't move the mouse
}
// kludge so that you can edit the very end of the sample
if (mx == SCREEN_W-1 && smpEd_ScrPos+smpEd_ViewSize >= s->len)
mx++;
if (mx != lastMouseX)
{
p = scr2SmpPos(mx);
if (s->typ & 16)
p >>= 1;
}
else
{
p = lastDrawX;
}
if (!keyb.leftShiftPressed && my != lastMouseY)
{
if (my == 250) // center
{
vl = 128;
}
else
{
dVal = (my - 174) * (256.0 / SAMPLE_AREA_HEIGHT);
vl = (int32_t)(dVal + 0.5);
vl = CLAMP(vl, 0, 255);
vl ^= 0xFF;
}
}
else
{
vl = lastDrawY;
}
lastMouseX = mx;
lastMouseY = my;
r = p;
rvl = vl;
// swap x/y if needed
if (p > lastDrawX)
{
// swap x
tmp32 = p;
p = lastDrawX;
lastDrawX = tmp32;
// swap y
tmp32 = lastDrawY;
lastDrawY = vl;
vl = tmp32;
}
if (s->typ & 16)
{
// 16-bit
ptr16 = (int16_t *)s->pek;
start = p;
end = lastDrawX+1;
if (start < 0)
start = 0;
tmp32 = s->len >> 1;
if (end > tmp32)
end = tmp32;
if (p == lastDrawX)
{
int16_t smpVal = (int16_t)((vl << 8) ^ 0x8000);
for (rl = start; rl < end; rl++)
ptr16[rl] = smpVal;
}
else
{
int32_t y = lastDrawY - vl;
uint32_t x = lastDrawX - p;
int32_t xMul = 0xFFFFFFFF;
if (x != 0)
xMul /= x;
int32_t i = 0;
for (rl = start; rl < end; rl++)
{
tvl = y * i;
tvl = ((int64_t)tvl * xMul) >> 32; // tvl /= x;
tvl += vl;
tvl <<= 8;
tvl ^= 0x8000;
ptr16[rl] = (int16_t)tvl;
i++;
}
}
}
else
{
// 8-bit
ptr8 = s->pek;
start = p;
if (start < 0)
start = 0;
end = lastDrawX+1;
if (end > s->len)
end = s->len;
if (p == lastDrawX)
{
int8_t smpVal = (int8_t)(vl ^ 0x80);
for (rl = start; rl < end; rl++)
ptr8[rl] = smpVal;
}
else
{
int32_t y = lastDrawY - vl;
uint32_t x = lastDrawX - p;
int32_t xMul = 0xFFFFFFFF;
if (x != 0)
xMul /= x;
int32_t i = 0;
for (rl = start; rl < end; rl++)
{
tvl = y * i;
tvl = ((int64_t)tvl * xMul) >> 32; // tvl /= x;
tvl += vl;
tvl ^= 0x80;
ptr8[rl] = (int8_t)tvl;
i++;
}
}
}
lastDrawY = rvl;
lastDrawX = r;
writeSample(true);
}
void handleSampleDataMouseDown(bool mouseButtonHeld)
{
int32_t tmp, leftLoopPinPos, rightLoopPinPos;
if (editor.curInstr == 0)
return;
if (!mouseButtonHeld)
{
editor.ui.rightLoopPinMoving = false;
editor.ui.leftLoopPinMoving = false;
editor.ui.sampleDataOrLoopDrag = -1;
mouseXOffs = 0;
lastMouseX = mouse.x;
lastMouseY = mouse.y;
mouse.lastUsedObjectType = OBJECT_SMPDATA;
if (mouse.leftButtonPressed)
{
// move loop pins
if (mouse.y < 183)
{
leftLoopPinPos = getSpritePosX(SPRITE_LEFT_LOOP_PIN);
if (mouse.x >= leftLoopPinPos && mouse.x <= leftLoopPinPos+16)
{
mouseXOffs = (leftLoopPinPos + 8) - mouse.x;
editor.ui.sampleDataOrLoopDrag = true;
setLeftLoopPinState(true);
lastMouseX = mouse.x;
editor.ui.leftLoopPinMoving = true;
return;
}
}
else if (mouse.y > 318)
{
rightLoopPinPos = getSpritePosX(SPRITE_RIGHT_LOOP_PIN);
if (mouse.x >= rightLoopPinPos && mouse.x <= rightLoopPinPos+16)
{
mouseXOffs = (rightLoopPinPos + 8) - mouse.x;
editor.ui.sampleDataOrLoopDrag = true;
setRightLoopPinState(true);
lastMouseX = mouse.x;
editor.ui.rightLoopPinMoving = true;
return;
}
}
// mark data
editor.ui.sampleDataOrLoopDrag = mouse.x;
lastMouseX = editor.ui.sampleDataOrLoopDrag;
setSampleRange(editor.ui.sampleDataOrLoopDrag, editor.ui.sampleDataOrLoopDrag);
}
else if (mouse.rightButtonPressed)
{
// edit data
editor.ui.sampleDataOrLoopDrag = true;
editSampleData(false);
}
return;
}
if (mouse.rightButtonPressed)
{
editSampleData(true);
return;
}
if (mouse.x != lastMouseX)
{
if (mouse.leftButtonPressed)
{
if (editor.ui.leftLoopPinMoving)
{
lastMouseX = mouse.x;
setLeftLoopPinPos(mouseXOffs + lastMouseX);
}
else if (editor.ui.rightLoopPinMoving)
{
lastMouseX = mouse.x;
setRightLoopPinPos(mouseXOffs + lastMouseX);
}
else if (editor.ui.sampleDataOrLoopDrag >= 0)
{
// mark data
lastMouseX = mouse.x;
tmp = lastMouseX;
if (lastMouseX > editor.ui.sampleDataOrLoopDrag)
setSampleRange(editor.ui.sampleDataOrLoopDrag, tmp);
else if (lastMouseX == editor.ui.sampleDataOrLoopDrag)
setSampleRange(editor.ui.sampleDataOrLoopDrag, editor.ui.sampleDataOrLoopDrag);
else if (lastMouseX < editor.ui.sampleDataOrLoopDrag)
setSampleRange(tmp, editor.ui.sampleDataOrLoopDrag);
}
}
}
}
// SAMPLE EDITOR EXTENSION
void handleSampleEditorExtRedrawing(void)
{
hexOutBg(35, 96, PAL_FORGRND, PAL_DESKTOP, smpEd_Rx1, 8);
hexOutBg(99, 96, PAL_FORGRND, PAL_DESKTOP, smpEd_Rx2, 8);
hexOutBg(99, 110, PAL_FORGRND, PAL_DESKTOP, smpEd_Rx2 - smpEd_Rx1, 8);
hexOutBg(99, 124, PAL_FORGRND, PAL_DESKTOP, smpCopySize, 8);
hexOutBg(226, 96, PAL_FORGRND, PAL_DESKTOP, editor.srcInstr, 2);
hexOutBg(274, 96, PAL_FORGRND, PAL_DESKTOP, editor.srcSmp, 2);
hexOutBg(226, 109, PAL_FORGRND, PAL_DESKTOP, editor.curInstr, 2);
hexOutBg(274, 109, PAL_FORGRND, PAL_DESKTOP, editor.curSmp, 2);
}
void drawSampleEditorExt(void)
{
drawFramework(0, 92, 158, 44, FRAMEWORK_TYPE1);
drawFramework(0, 136, 158, 37, FRAMEWORK_TYPE1);
drawFramework(158, 92, 133, 81, FRAMEWORK_TYPE1);
textOutShadow( 4, 96, PAL_FORGRND, PAL_DSKTOP2, "Rng.:");
charOutShadow(91, 95, PAL_FORGRND, PAL_DSKTOP2, '-');
textOutShadow( 4, 110, PAL_FORGRND, PAL_DSKTOP2, "Range size");
textOutShadow( 4, 124, PAL_FORGRND, PAL_DSKTOP2, "Copy buf. size");
textOutShadow(162, 96, PAL_FORGRND, PAL_DSKTOP2, "Src.instr.");
textOutShadow(245, 96, PAL_FORGRND, PAL_DSKTOP2, "smp.");
textOutShadow(162, 109, PAL_FORGRND, PAL_DSKTOP2, "Dest.instr.");
textOutShadow(245, 109, PAL_FORGRND, PAL_DSKTOP2, "smp.");
showPushButton(PB_SAMP_EXT_CLEAR_COPYBUF);
showPushButton(PB_SAMP_EXT_CONV);
showPushButton(PB_SAMP_EXT_ECHO);
showPushButton(PB_SAMP_EXT_BACKWARDS);
showPushButton(PB_SAMP_EXT_CONV_W);
showPushButton(PB_SAMP_EXT_MORPH);
showPushButton(PB_SAMP_EXT_COPY_INS);
showPushButton(PB_SAMP_EXT_COPY_SMP);
showPushButton(PB_SAMP_EXT_XCHG_INS);
showPushButton(PB_SAMP_EXT_XCHG_SMP);
showPushButton(PB_SAMP_EXT_RESAMPLE);
showPushButton(PB_SAMP_EXT_MIX_SAMPLE);
}
void showSampleEditorExt(void)
{
hideTopScreen();
showTopScreen(false);
if (editor.ui.extended)
exitPatternEditorExtended();
if (!editor.ui.sampleEditorShown)
showSampleEditor();
editor.ui.sampleEditorExtShown = true;
editor.ui.scopesShown = false;
drawSampleEditorExt();
}
void hideSampleEditorExt(void)
{
editor.ui.sampleEditorExtShown = false;
hidePushButton(PB_SAMP_EXT_CLEAR_COPYBUF);
hidePushButton(PB_SAMP_EXT_CONV);
hidePushButton(PB_SAMP_EXT_ECHO);
hidePushButton(PB_SAMP_EXT_BACKWARDS);
hidePushButton(PB_SAMP_EXT_CONV_W);
hidePushButton(PB_SAMP_EXT_MORPH);
hidePushButton(PB_SAMP_EXT_COPY_INS);
hidePushButton(PB_SAMP_EXT_COPY_SMP);
hidePushButton(PB_SAMP_EXT_XCHG_INS);
hidePushButton(PB_SAMP_EXT_XCHG_SMP);
hidePushButton(PB_SAMP_EXT_RESAMPLE);
hidePushButton(PB_SAMP_EXT_MIX_SAMPLE);
editor.ui.scopesShown = true;
drawScopeFramework();
}
void toggleSampleEditorExt(void)
{
if (editor.ui.sampleEditorExtShown)
hideSampleEditorExt();
else
showSampleEditorExt();
}
static int32_t SDLCALL sampleBackwardsThread(void *ptr)
{
int8_t tmp8, *ptrStart, *ptrEnd;
int16_t tmp16, *ptrStart16, *ptrEnd16;
sampleTyp *s = getCurSample();
(void)ptr;
if (s->typ & 16)
{
if (smpEd_Rx1 >= smpEd_Rx2)
{
ptrStart16 = (int16_t *)s->pek;
ptrEnd16 = (int16_t *)&s->pek[s->len-2];
}
else
{
ptrStart16 = (int16_t *)&s->pek[smpEd_Rx1];
ptrEnd16 = (int16_t *)&s->pek[smpEd_Rx2-2];
}
pauseAudio();
restoreSample(s);
while (ptrStart16 < ptrEnd16)
{
tmp16 = *ptrStart16;
*ptrStart16++ = *ptrEnd16;
*ptrEnd16-- = tmp16;
}
fixSample(s);
resumeAudio();
}
else
{
if (smpEd_Rx1 >= smpEd_Rx2)
{
ptrStart = s->pek;
ptrEnd = &s->pek[s->len-1];
}
else
{
ptrStart = &s->pek[smpEd_Rx1];
ptrEnd = &s->pek[smpEd_Rx2-1];
}
pauseAudio();
restoreSample(s);
while (ptrStart < ptrEnd)
{
tmp8 = *ptrStart;
*ptrStart++ = *ptrEnd;
*ptrEnd-- = tmp8;
}
fixSample(s);
resumeAudio();
}
setSongModifiedFlag();
setMouseBusy(false);
writeSampleFlag = true;
return true;
}
void sampleBackwards(void)
{
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len < 2)
return;
mouseAnimOn();
thread = SDL_CreateThread(sampleBackwardsThread, NULL, NULL);
if (thread == NULL)
{
okBox(0, "System message", "Couldn't create thread!");
return;
}
SDL_DetachThread(thread);
}
static int32_t SDLCALL sampleConvThread(void *ptr)
{
int8_t *ptr8;
int16_t *ptr16;
int32_t i, len;
sampleTyp *s = getCurSample();
(void)ptr;
pauseAudio();
restoreSample(s);
if (s->typ & 16)
{
len = s->len / 2;
ptr16 = (int16_t *)s->pek;
for (i = 0; i < len; i++)
ptr16[i] ^= 0x8000;
}
else
{
len = s->len;
ptr8 = s->pek;
for (i = 0; i < len; i++)
ptr8[i] ^= 0x80;
}
fixSample(s);
resumeAudio();
setSongModifiedFlag();
setMouseBusy(false);
writeSampleFlag = true;
return true;
}
void sampleConv(void)
{
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
mouseAnimOn();
thread = SDL_CreateThread(sampleConvThread, NULL, NULL);
if (thread == NULL)
{
okBox(0, "System message", "Couldn't create thread!");
return;
}
SDL_DetachThread(thread);
}
static int32_t SDLCALL sampleConvWThread(void *ptr)
{
int8_t *ptr8, tmp;
int32_t len;
sampleTyp *s = getCurSample();
(void)ptr;
pauseAudio();
restoreSample(s);
len = s->len / 2;
ptr8 = s->pek;
for (int32_t i = 0; i < len; i++)
{
tmp = ptr8[0];
ptr8[0] = ptr8[1];
ptr8[1] = tmp;
ptr8 += 2;
}
fixSample(s);
resumeAudio();
setSongModifiedFlag();
setMouseBusy(false);
writeSampleFlag = true;
return true;
}
void sampleConvW(void)
{
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
mouseAnimOn();
thread = SDL_CreateThread(sampleConvWThread, NULL, NULL);
if (thread == NULL)
{
okBox(0, "System message", "Couldn't create thread!");
return;
}
SDL_DetachThread(thread);
}
static int32_t SDLCALL fixDCThread(void *ptr)
{
int8_t *ptr8;
int16_t *ptr16;
int32_t i, len, smpSub, smp32;
int64_t averageDC;
sampleTyp *s = getCurSample();
(void)ptr;
averageDC = 0;
if (s->typ & 16)
{
if (smpEd_Rx1 >= smpEd_Rx2)
{
assert(!(s->len & 1));
ptr16 = (int16_t *)s->pek;
len = s->len >> 1;
}
else
{
assert(!(smpEd_Rx1 & 1));
assert(!(smpEd_Rx2 & 1));
ptr16 = (int16_t *)&s->pek[smpEd_Rx1];
len = (smpEd_Rx2 - smpEd_Rx1) >> 1;
}
if (len < 0 || len > s->len>>1)
{
setMouseBusy(false);
return true;
}
pauseAudio();
restoreSample(s);
for (i = 0; i < len; i++)
averageDC += ptr16[i];
averageDC /= len;
smpSub = (int32_t)averageDC;
for (i = 0; i < len; i++)
{
smp32 = ptr16[i] - smpSub;
CLAMP16(smp32);
ptr16[i] = (int16_t)smp32;
}
fixSample(s);
resumeAudio();
}
else
{
if (smpEd_Rx1 >= smpEd_Rx2)
{
ptr8 = s->pek;
len = s->len;
}
else
{
ptr8 = &s->pek[smpEd_Rx1];
len = smpEd_Rx2 - smpEd_Rx1;
}
if (len < 0 || len > s->len)
{
setMouseBusy(false);
return true;
}
pauseAudio();
restoreSample(s);
for (i = 0; i < len; i++)
averageDC += ptr8[i];
averageDC /= len;
smpSub = (int32_t)averageDC;
for (i = 0; i < len; i++)
{
smp32 = ptr8[i] - smpSub;
CLAMP8(smp32);
ptr8[i] = (int8_t)smp32;
}
fixSample(s);
resumeAudio();
}
writeSampleFlag = true;
setSongModifiedFlag();
setMouseBusy(false);
return true;
}
void fixDC(void)
{
sampleTyp *s = getCurSample();
if (s == NULL || s->pek == NULL || s->len <= 0)
return;
mouseAnimOn();
thread = SDL_CreateThread(fixDCThread, NULL, NULL);
if (thread == NULL)
{
okBox(0, "System message", "Couldn't create thread!");
return;
}
SDL_DetachThread(thread);
}
void smpEdStop(void)
{
// safely kills all voices
lockMixerCallback();
unlockMixerCallback();
}
void testSmpEdMouseUp(void) // used for setting new loop points
{
sampleTyp *s;
if (updateLoopsOnMouseUp)
{
updateLoopsOnMouseUp = false;
s = getCurSample();
if (s == NULL)
return;
if (s->repS != curSmpRepS || s->repL != curSmpRepL)
{
lockMixerCallback();
restoreSample(s);
setSongModifiedFlag();
s->repS = curSmpRepS;
s->repL = curSmpRepL;
fixSample(s);
unlockMixerCallback();
writeSample(true);
}
}
}