ref: 75e55346c70c831fe17df3f57379b280680e039e
parent: acb9df2f3366456315a3bdb28b4903705ec3495d
author: David <gek@katherine>
date: Fri Feb 19 12:21:22 EST 2021
SPEED IS THE NAME, SPEED IS THE GAME, SPEEDgit add .git add .
--- a/SDL_Examples/Makefile
+++ b/SDL_Examples/Makefile
@@ -1,5 +1,6 @@
-CC= gcc
-CFLAGS = -g -Wall -O3 -w
+include ../config.mk
+#CC= gcc
+#CFLAGS = -g -Wall -O3 -w
GL_LIBS= -L../
GL_INCLUDES= -I../include/
ALL_T= gears texture model helloworld
--- /dev/null
+++ b/config.mk
@@ -1,0 +1,10 @@
+#####################################################################
+# C compiler
+
+CC= gcc
+CFLAGS= -Wall -O3 -g -std=c99 -Wno-undef
+LFLAGS=
+
+
+
+
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,4 +1,4 @@
-include config.mk
+include ../config.mk
OBJS= api.o list.o vertex.o init.o matrix.o texture.o \
misc.o clear.o light.o clip.o select.o get.o \
--- a/src/config.mk
+++ /dev/null
@@ -1,83 +1,0 @@
-#####################################################################
-# C compiler
-
-# linux
-CC= gcc
-CFLAGS= -Wall -O3 -g -std=c99 -Wno-undef
-LFLAGS=
-
-# for BeOS PPC
-#CC= mwcc
-#CFLAGS= -I. -i-
-#LFLAGS=
-
-#####################################################################
-# TinyGL configuration
-
-#####################################################################
-# Select window API for TinyGL:
-
-# standard X11 GLX like API
-TINYGL_USE_GLX=n
-
-# BEOS API
-#TINYGL_USE_BEOS=y
-
-# Micro Windows NanoX API
-#TINYGL_USE_NANOX=y
-
-#####################################################################
-# X11 configuration (for the examples only)
-
-ifdef TINYGL_USE_GLX
-# Linux
-#UI_LIBS= -L/usr/X11R6/lib -lX11 -lXext
-UI_LIBS=
-UI_INCLUDES=
-# Solaris
-#UI_LIBS= -L/usr/X11/lib -lX11 -lXext -lsocket -lnsl
-#UI_INCLUDES=
-
-UI_OBJS=x11.o
-endif
-
-#####################################################################
-# Micro windowX11 configuration (for the examples only)
-
-ifdef TINYGL_USE_NANOX
-UI_LIBS= -lnano-X -lmwengine -lmwdrivers -lmwfonts
-UI_INCLUDES=
-
-# X11 target for nanoX
-UI_LIBS+= -L/usr/X11R6/lib -lX11 -lXext
-
-UI_OBJS=nanox.o
-endif
-
-#####################################################################
-# OpenGL configuration (for the examples only)
-
-# use TinyGL
-GL_LIBS= -L../ -lTinyGL
-GL_INCLUDES= -I../include
-GL_DEPS= ../libTinyGL.a
-
-# use Mesa
-#GL_LIBS= -lMesaGL
-#GL_INCLUDES=
-#GL_DEPS=
-
-# use OpenGL
-#GL_LIBS= -lGL
-#GL_INCLUDES=
-#GL_DEPS=
-
-####################################################################
-# Compile and link control
-
-# UNIX systems
-DIRS= src examples
-
-# BeOS
-# DIRS= src BeOS
-
--- a/src/ztriangle.c
+++ b/src/ztriangle.c
@@ -439,7 +439,7 @@
#define INTERP_Z
#define INTERP_STZ
-
+//NB_INTERP refers to some sort of texture mapping speedup enhancement.
#define NB_INTERP 8
#define DRAW_INIT() \
@@ -580,8 +580,6 @@
}
#endif
#define DRAW_LINE() {DRAW_LINE_TRI_TEXTURED()}-
-
#include "ztriangle.h"
}
--- a/src/ztriangle.h
+++ b/src/ztriangle.h
@@ -20,7 +20,7 @@
*/
{- GLfloat fdx1, fdx2, fdy1, fdy2, d1, d2;
+ GLfloat fdx1, fdx2, fdy1, fdy2;
GLushort* pz1;
PIXEL* pp1;
GLint update_left, update_right;
@@ -86,6 +86,8 @@
fdx2 *= fz;
fdy2 *= fz;
//and then
+{+GLfloat d1, d2;
#ifdef INTERP_Z
{d1 = p1->z - p0->z; //d1 first usage
@@ -157,7 +159,7 @@
dtzdy = (fdx1 * d2 - fdx2 * d1);
}
#endif
-
+} //EOF d1, d2 lifetimes.
/* screen coordinates */
pp1 = (PIXEL*)(zb->pbuf) + zb->xsize * p0->y; //pp1 first usage