get 3d textures working again

ideal from a performance viewpoint and there are mechanisms to avoid this
in future.

Makefile

@@ -134,10 +134,10 @@ ultrix-gcc:
 
 # Rules for making release tarballs
 
-DIRECTORY = Mesa-6.4.1
-LIB_NAME = MesaLib-6.4.1
-DEMO_NAME = MesaDemos-6.4.1
-GLUT_NAME = MesaGLUT-6.4.1
+DIRECTORY = Mesa-6.5
+LIB_NAME = MesaLib-6.5
+DEMO_NAME = MesaDemos-6.5
+GLUT_NAME = MesaGLUT-6.5
 
 MAIN_FILES = \
 	$(DIRECTORY)/Makefile*						\

bin/installmesa

@@ -51,6 +51,8 @@ fi
 
 if [ `uname` = "FreeBSD" ] ; then
 	CP_FLAGS="-f"
+elif [ `uname` = "Darwin" ] ; then
+	CP_FLAGS="-f"
 else
 	CP_FLAGS="-fd"
 fi
@@ -63,6 +65,7 @@ mkdir ${INCLUDE_DIR}/GL
 mkdir ${INCLUDE_DIR}/GLES
 mkdir ${LIB_DIR}
 cp -f ${TOP}/include/GL/*.h ${INCLUDE_DIR}/GL
+cp -f ${TOP}/src/glw/*.h ${INCLUDE_DIR}/GL
 # NOT YET: cp -f ${TOP}/include/GLES/*.h ${INCLUDE_DIR}/GLES
 cp ${CP_FLAGS} ${TOP}/lib*/lib* ${LIB_DIR}
 

bin/mklib

@@ -209,10 +209,8 @@ case $ARCH in
         elif [ $STATIC = 1 ] ; then
 	    LIBNAME="lib${LIBNAME}"     # prefix with "lib"
             echo "mklib: Making" $ARCH "static library: " ${LIBNAME}.a
-            LINK="ar"
-            OPTS="-ru"
-            # make lib
-            ${LINK} ${OPTS} ${LIBNAME}.a ${OBJECTS}
+            rm -f ${LIBNAME}.a
+            ar -ru ${LIBNAME}.a ${OBJECTS}
 	    ranlib ${LIBNAME}.a
             # finish up
             FINAL_LIBS=${LIBNAME}.a
@@ -428,6 +426,7 @@ case $ARCH in
         if [ $STATIC = 1 ] ; then
             LIBNAME="lib${LIBNAME}.a"
             echo "mklib: Making AIX static library: " ${LIBNAME}
+	    rm -f ${LIBNAME}
             ar -ruv ${X64} ${LIBNAME} ${OBJECTS}
             FINAL_LIBS=${LIBNAME}
         else

configs/beos

@@ -26,7 +26,8 @@ ifeq ($(CPU), x86)
 		-DUSE_3DNOW_ASM \
 		-DUSE_SSE_ASM
 	
-	ASM_SOURCES = $(X86_SOURCES) $(X86_API)
+	ASM_SOURCES = $(X86_SOURCES)
+	ASM_API = $(X86_API)
 
 	CC = gcc
 	CXX = g++

configs/darwin

@@ -5,11 +5,13 @@ include $(TOP)/configs/default
 CONFIG_NAME = darwin
 
 # Compiler and flags
-CC = cc
-CXX = cc
+CC = c++
+CXX = c++
 CFLAGS = -I/usr/X11R6/include -O3 -fPIC -fno-common -ffast-math -funroll-loops -fexpensive-optimizations -no-cpp-precomp -dynamic -Ddarwin
 CXXFLAGS = -I/usr/X11R6/include -O3 -fPIC -fno-common -ffast-math -funroll-loops -fexpensive-optimizations -no-cpp-precomp -dynamic -Ddarwin
 
+MKLIB_OPTIONS = -cplusplus
+
 # Library names (actual file names)
 GL_LIB_NAME = libGL.dylib
 GLU_LIB_NAME = libGLU.dylib

configs/default

@@ -7,8 +7,8 @@ CONFIG_NAME = default
 
 # Version info
 MESA_MAJOR=6
-MESA_MINOR=4
-MESA_TINY=1
+MESA_MINOR=5
+MESA_TINY=0
 
 # external projects.  This should be useless now that we use libdrm.
 DRM_SOURCE_PATH=$(TOP)/../drm

configs/freebsd

@@ -9,7 +9,8 @@ CC = gcc
 CXX = g++
 MAKE = gmake
 
-CFLAGS = -O2 -fPIC -pedantic -I/usr/X11R6/include -DUSE_XSHM -DHZ=100
+CFLAGS = -O2 -fPIC -pedantic -I/usr/X11R6/include -DUSE_XSHM -DHZ=100 \
+	$(ASM_FLAGS)
 CXXFLAGS = -O2 -fPIC -pedantic
 GLUT_CFLAGS = -fexceptions
 

configs/freebsd-dri

@@ -16,7 +16,7 @@ X11_INCLUDES = -I/usr/X11R6/include
 DEFINES = -DPTHREADS -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER \
 	-DGLX_DIRECT_RENDERING -DHAVE_ALIAS
 CFLAGS = $(DEFINES) -Wmissing-prototypes -g -std=c99  -Wundef -fPIC \
-	-ffast-math $(X11_INCLUDES)
+	-ffast-math $(ASM_FLAGS) $(X11_INCLUDES)
 CXXFLAGS = $(DEFINES) -Wall -g -ansi -pedantic -fPIC
 
 ASM_SOURCES = 
@@ -24,7 +24,7 @@ ASM_SOURCES =
 # Library/program dependencies
 LIBDRM_LIB = `pkg-config --libs libdrm` -ldrm
 DRI_LIB_DEPS = -L/usr/local/lib -lm -lpthread -lexpat $(LIBDRM_LIB)
-GL_LIB_DEPS = -L/usr/X11R6/lib -lX11 -lXext -lm -lpthread $(LIBDRM_LIB)
+GL_LIB_DEPS = -L/usr/X11R6/lib -lX11 -lXext -lXxf86vm -lm -lpthread $(LIBDRM_LIB)
 
 GLUT_LIB_DEPS = -L$(LIB_DIR) -L/usr/X11R6/lib -lGLU -lGL -lX11 -lXmu -lXt -lXi -lm
 GLW_LIB_DEPS = -L$(LIB_DIR) -L/usr/X11R6/lib -lGL -lXt -lXm -lX11

configs/freebsd-dri-amd64

@@ -6,4 +6,5 @@ include $(TOP)/configs/freebsd-dri
 CONFIG_NAME = freebsd-dri-x86-64
 
 ASM_FLAGS = -DUSE_X86_64_ASM
-ASM_SOURCES = $(X86-64_SOURCES) $(X86-64_API)
+ASM_SOURCES = $(X86-64_SOURCES)
+ASM_API = $(X86-64_API)

configs/freebsd-dri-x86

@@ -10,3 +10,4 @@ PIC_FLAGS =
 
 ASM_FLAGS = -DUSE_X86_ASM -DUSE_MMX_ASM -DUSE_3DNOW_ASM -DUSE_SSE_ASM
 ASM_SOURCES = $(X86_SOURCES)
+ASM_API = $(X86_API)

configs/linux

@@ -8,7 +8,6 @@ CONFIG_NAME = linux
 CC = gcc
 CXX = g++
 
-WARN_FLAGS = -Wall
 OPT_FLAGS  = -O3 -g
 PIC_FLAGS  = -fPIC
 
@@ -22,10 +21,10 @@ DEFINES = -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE \
 
 X11_INCLUDES = -I/usr/X11R6/include
 
-CFLAGS   = $(WARN_FLAGS) $(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) $(DEFINES) \
-	$(ASM_FLAGS) $(X11_INCLUDES) -std=c99 -ffast-math 
+CFLAGS = -Wall -Wmissing-prototypes $(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) \
+	$(DEFINES) $(ASM_FLAGS) $(X11_INCLUDES) -std=c99 -ffast-math 
 
-CXXFLAGS = $(WARN_FLAGS) $(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) $(DEFINES) \
+CXXFLAGS = -Wall $(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) $(DEFINES) \
 	$(X11_INCLUDES) 
 
 GLUT_CFLAGS = -fexceptions

configs/linux-debug

@@ -5,4 +5,4 @@ include $(TOP)/configs/linux
 CONFIG_NAME = linux-debug
 
 OPT_FLAGS = -g
-DEFINES += -DDEBUG -DMESA_DEBUG -DRUN_DEBUG_BENCHMARK
+DEFINES += -DDEBUG -DDEBUG_MATH

configs/linux-directfb

@@ -17,7 +17,8 @@ HAVE_X86 = $(shell uname -m | grep 'i[3-6]86' >/dev/null && echo yes)
 ifeq ($(HAVE_X86), yes)
      CFLAGS   += -DUSE_X86_ASM -DUSE_MMX_ASM -DUSE_3DNOW_ASM -DUSE_SSE_ASM
      CXXFLAGS += -DUSE_X86_ASM -DUSE_MMX_ASM -DUSE_3DNOW_ASM -DUSE_SSE_ASM
-     ASM_SOURCES = $(X86_SOURCES) $(X86_API)
+     ASM_SOURCES = $(X86_SOURCES)
+     ASM_API = $(X86_API)
 endif
 
 # Directories

configs/linux-dri

@@ -9,12 +9,11 @@ CONFIG_NAME = linux-dri
 CC = gcc
 CXX = g++
 
-MKDEP = /usr/X11R6/bin/makedepend
+#MKDEP = /usr/X11R6/bin/makedepend
 #MKDEP = gcc -M
 #MKDEP_OPTIONS = -MF depend
 
-WARN_FLAGS = -Wall
-OPT_FLAGS  = -O -g
+OPT_FLAGS  = -g
 PIC_FLAGS  = -fPIC
 
 # Add '-DGLX_USE_TLS' to ARCH_FLAGS to enable TLS support.
@@ -27,10 +26,10 @@ DEFINES = -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE \
 
 X11_INCLUDES = -I/usr/X11R6/include
 
-CFLAGS   = $(WARN_FLAGS) $(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) $(DEFINES) \
-	$(ASM_FLAGS) -std=c99 -ffast-math 
+CFLAGS = -Wall -Wmissing-prototypes $(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) \
+	$(DEFINES) $(ASM_FLAGS) -std=c99 -ffast-math 
 
-CXXFLAGS = $(WARN_FLAGS) $(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) $(DEFINES)
+CXXFLAGS = -Wall $(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) $(DEFINES)
 
 
 ASM_SOURCES = 
@@ -64,5 +63,7 @@ WINDOW_SYSTEM=dri
 
 # gamma are missing because they have not been converted to use the new
 # interface.
-DRI_DIRS = i810 i830 i915 mach64 mga r128 r200 r300 radeon s3v \
+DRI_DIRS = i810 i915 mach64 mga r128 r200 r300 radeon s3v \
 	savage sis tdfx trident unichrome ffb
+
+DRI_DIRS = i915 

configs/linux-dri-x86

@@ -13,4 +13,5 @@ ARCH_FLAGS = -m32
 
 ASM_FLAGS = -DUSE_X86_ASM -DUSE_MMX_ASM -DUSE_3DNOW_ASM -DUSE_SSE_ASM
 ASM_SOURCES = $(X86_SOURCES)
+ASM_API = $(X86_API)
 

configs/linux-dri-x86-64

@@ -8,7 +8,8 @@ CONFIG_NAME = linux-dri-x86-64
 ARCH_FLAGS = -m64
 
 ASM_FLAGS = -DUSE_X86_64_ASM
-ASM_SOURCES = $(X86-64_SOURCES) $(X86-64_API)
+ASM_SOURCES = $(X86-64_SOURCES)
+ASM_API = $(X86-64_API)
 
 LIB_DIR = $(TOP)/lib64
 

configs/linux-icc

@@ -16,6 +16,7 @@ GL_LIB_DEPS = -L/usr/X11R6/lib -lX11 -lXext -lm -lpthread
 GLUT_LIB_DEPS = -L$(LIB_DIR) -l$(GLU_LIB) -l$(GL_LIB) -L/usr/X11R6/lib -lX11 -lXmu -lXt -lXi -lm
 APP_LIB_DEPS = -L$(LIB_DIR) -l$(GLUT_LIB) -l$(GLU_LIB) -l$(GL_LIB) -lm
 
-ASM_SOURCES = $(X86_SOURCES) $(X86_API)
+ASM_SOURCES = $(X86_SOURCES)
+ASM_API = $(X86_API)
 
 

configs/linux-icc-static

@@ -24,6 +24,7 @@ GLUT_LIB_DEPS = -L$(LIB_DIR) -l$(GLU_LIB) -l$(GL_LIB) -L/usr/X11R6/lib -lX11 -lX
 APP_LIB_DEPS = -L$(LIB_DIR) -l$(GLUT_LIB) -l$(GLU_LIB) -l$(GL_LIB) -L/usr/X11R6/lib -lX11 -lXmu -lXt -lXi -lm
 MKLIB_OPTIONS = -arch icc
 
-ASM_SOURCES = $(X86_SOURCES) $(X86_API)
+ASM_SOURCES = $(X86_SOURCES)
+ASM_API = $(X86_API)
 
 

configs/linux-profile

@@ -8,9 +8,9 @@ CONFIG_NAME = linux-profile
 CC = gcc
 CXX = g++
 
-CFLAGS = -pg -O -ansi -pedantic -Wall -Wmissing-prototypes -Wundef -fPIC -ffast-math -D_POSIX_SOURCE -D_SVID_SOURCE -D_BSD_SOURCE -I/usr/X11R6/include -DUSE_XSHM -DPTHREADS -DDEBUG -DMESA_DEBUG
+CFLAGS = -pg -O -ansi -pedantic -Wall -Wmissing-prototypes -Wundef -fPIC -ffast-math -D_POSIX_SOURCE -D_SVID_SOURCE -D_BSD_SOURCE -I/usr/X11R6/include -DUSE_XSHM -DPTHREADS -DDEBUG
 
-CXXFLAGS = -pg -O -ansi -pedantic -Wall -Wundef -fPIC -ffast-math -D_POSIX_SOURCE -D_SVID_SOURCE -D_BSD_SOURCE -DDEBUG -DMESA_DEBUG
+CXXFLAGS = -pg -O -ansi -pedantic -Wall -Wundef -fPIC -ffast-math -D_POSIX_SOURCE -D_SVID_SOURCE -D_BSD_SOURCE -DDEBUG
 
 GLUT_CFLAGS = -fexceptions
 

configs/linux-solo-x86

@@ -10,3 +10,4 @@ PIC_FLAGS =
 
 ASM_FLAGS = -DUSE_X86_ASM -DUSE_MMX_ASM -DUSE_3DNOW_ASM -DUSE_SSE_ASM
 ASM_SOURCES = $(X86_SOURCES)
+ASM_API = $(X86_API)

configs/linux-tcc

@@ -1,22 +0,0 @@
-# Configuration for debugging on Linux
-
-include $(TOP)/configs/default
-
-CONFIG_NAME = linux-tcc
-
-# Compiler and flags
-CC = gcc
-CXX = g++
-
-TCC_DIR=/home/progs/tcc-0.9.20
-
-CFLAGS = -g -ansi -pedantic -Wall -Wmissing-prototypes -Wundef -fPIC -ffast-math -D_POSIX_SOURCE -D_SVID_SOURCE -D_BSD_SOURCE -I/usr/X11R6/include -DUSE_XSHM -DPTHREADS -DDEBUG -DMESA_DEBUG -DUSE_TCC -I$(TCC_DIR)
-
-CXXFLAGS = -g -ansi -pedantic -Wall -Wundef -fPIC -ffast-math -D_POSIX_SOURCE -D_SVID_SOURCE -D_BSD_SOURCE -DDEBUG -DMESA_DEBUG
-
-GLUT_CFLAGS = -fexceptions
-
-GL_LIB_DEPS = -L/usr/X11R6/lib -lX11 -lXext -lm -lpthread -L$(TCC_DIR) -ltcc -ldl
-GLUT_LIB_DEPS = -L$(LIB_DIR) -l$(GLU_LIB) -l$(GL_LIB) -L/usr/X11R6/lib -lX11 -lXmu -lXt -lXi -lm
-GLW_LIB_DEPS = -L$(LIB_DIR) -l$(GL_LIB) -lXt -L/usr/X11R6/lib -lX11
-APP_LIB_DEPS = -L$(LIB_DIR) -l$(GLUT_LIB) -l$(GLU_LIB) -l$(GL_LIB) -lm

configs/linux-x86

@@ -5,4 +5,5 @@ include $(TOP)/configs/linux
 CONFIG_NAME = linux-x86
 
 ASM_FLAGS = -DUSE_X86_ASM -DUSE_MMX_ASM -DUSE_3DNOW_ASM -DUSE_SSE_ASM
-ASM_SOURCES = $(X86_SOURCES) $(X86_API)
+ASM_SOURCES = $(X86_SOURCES)
+ASM_API = $(X86_API)

configs/linux-x86-64

@@ -6,7 +6,8 @@ CONFIG_NAME = linux-x86-64
 
 ARCH_FLAGS = -m64
 
-ASM_SOURCES = $(X86-64_SOURCES) $(X86-64_API)
+ASM_SOURCES = $(X86-64_SOURCES)
+ASM_API = $(X86-64_API)
 ASM_FLAGS = -DUSE_X86_64_ASM
 
 LIB_DIR = $(TOP)/lib64

configs/linux-x86-64-debug

@@ -4,4 +4,4 @@ include $(TOP)/configs/linux-x86-64
 
 CONFIG_NAME = linux-x86-64-debug
 
-DEFINES += -DDEBUG -DMESA_DEBUG -DRUN_DEBUG_BENCHMARK
+DEFINES += -DDEBUG -DDEBUG_MATH

configs/linux-x86-debug

@@ -6,4 +6,4 @@ include $(TOP)/configs/linux-x86
 CONFIG_NAME = linux-x86-debug
 
 OPT_FLAGS = -g
-DEFINES += -DDEBUG -DMESA_DEBUG -DRUN_DEBUG_BENCHMARK
+DEFINES += -DDEBUG -DDEBUG_MATH

configs/linux-x86-glide

@@ -15,7 +15,8 @@ CXXFLAGS = -Wall -O3 -ansi -pedantic -fPIC -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199
 GLUT_CFLAGS = -fexceptions
 
 
-ASM_SOURCES = $(X86_SOURCES) $(X86_API)
+ASM_SOURCES = $(X86_SOURCES)
+ASM_API = $(X86_API)
 
 # Library/program dependencies
 GL_LIB_DEPS = -L/usr/X11R6/lib -lX11 -lXext -L/usr/local/glide/lib -lglide3x -lm -lpthread

configs/linux-x86-xcb

@@ -15,7 +15,8 @@ CXXFLAGS = -Wall -O3 -ansi -pedantic -fPIC -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199
 GLUT_CFLAGS = -fexceptions
 
 
-ASM_SOURCES = $(X86_SOURCES) $(X86_API)
+ASM_SOURCES = $(X86_SOURCES)
+ASM_API = $(X86_API)
 
 # Library/program dependencies
 GL_LIB_DEPS = -L/usr/X11R6/lib -lX11 -lXext -lm -lpthread -lXCB

configs/sunos5-gcc

@@ -16,7 +16,8 @@ ARCH_FLAGS ?=
 
 DEFINES = -D_REENTRANT -DUSE_XSHM
 
-ASM_SOURCES = $(SPARC_SOURCES) $(SPARC_API)
+ASM_SOURCES = $(SPARC_SOURCES)
+ASM_API = $(SPARC_API)
 ASM_FLAGS = -DUSE_SPARC_ASM
 
 CFLAGS   = $(WARN_FLAGS) $(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) $(DEFINES) \

docs/README.VMS

@@ -26,7 +26,13 @@ On Alpha platforms at default a sharable images for the libraries are created.
 To get a static library make it by typing MMS/MACRO=(NOSHARE=1).
 On VAX platforms only static libraries can be build.
 
-
-You may want to compile Mesa to use IEEE floating point arithmetic, instead
-of VAX floating point by specifying the /float=IEEE flag to the compiler.
-For more information see https://bugs.freedesktop.org/show_bug.cgi?id=4270
+23-sep-2005
+changed default compilation to use /float=ieee/ieee=denorm. The reason for 
+this is that it makes Mesa on OpenVMS better compatible with other platforms
+and other packages for VMS that I maintain.
+For more information see
+      http://nchrem.tnw.tudelft.nl/openvms
+      https://bugs.freedesktop.org/show_bug.cgi?id=4270
+You may want to compile Mesa to use VAX-floating point arithmetic, instead
+of IEEE floating point by removing the /float=IEEE/denorm flag from the
+compiler options in the descrip.mms files.

docs/RELNOTES-6.4

@@ -47,4 +47,4 @@ in Mesa 6.3.
 
 
 ----------------------------------------------------------------------
-$Id: RELNOTES-6.4,v 1.1.2.5 2005/10/24 23:12:29 brianp Exp $
+$Id: RELNOTES-6.4,v 3.1 2005/10/24 23:33:27 brianp Exp $

docs/RELNOTES-6.4.1

@@ -1,47 +0,0 @@
-
-		        Mesa 6.4.1 Release Notes
-
-
-Introduction
-------------
-
-Mesa uses an even/odd version number scheme like the Linux kernel.
-Odd numbered versions (such as 6.3) designate new developmental releases.
-Even numbered versions (such as 6.4) designate stable releases.
-
-
-6.4.1 is a bug-fix release.  See the VERSIONS file for details.
-
-
-
-GLUT tarball
-------------
-
-Starting with 6.4, the GLUT library sources are distributed in a separate
-tarball.  This was done at the request of Linux distro vendors who prefer
-to use freeglut.
-
-
-
-
-Driver			Status
-----------------------	----------------------
-DRI drivers		varies with the driver
-XMesa (Xlib)		implements OpenGL 1.5
-OSMesa (off-screen)	implements OpenGL 1.5
-Windows/Win32		implements OpenGL 1.5
-Glide (3dfx Voodoo1/2)  requires updates	
-SVGA			requires updates
-DJGPP			requires updates
-GGI			requires updates
-BeOS			requires updates
-Allegro			requires updates
-D3D			requires updates
-
-The drivers which require updates mostly need to be updated to work
-with the new gl_renderbuffer / gl_framebuffer infrastructure introduced
-in Mesa 6.3.
-
-
-----------------------------------------------------------------------
-$Id: RELNOTES-6.4.1,v 1.1.2.1 2005/11/30 01:15:15 brianp Exp $

docs/RELNOTES-6.5

@@ -0,0 +1,74 @@
+
+                       Mesa 6.5 Release Notes
+
+                           month, day, 2005
+
+
+
+Introduction
+------------
+
+Mesa uses an even/odd version number scheme like the Linux kernel.
+Odd numbered versions (such as 6.5) designate new developmental releases.
+Even numbered versions (such as 6.4) designate stable releases.
+
+
+
+New Features
+------------
+
+GL_EXT_timer_query  - used to get elapsed time information from the renderer.
+
+
+
+Driver Interface Changes
+------------------------
+
+Stencil: The Driver.StencilOp/Func/Mask() functions have been replaced by
+the two-sided versions: Driver.Stencil*Separate().
+
+
+
+To Do
+-----
+Fix linux-glide target/driver.
+Fix lambda calculation for frag progs.
+
+
+
+
+Removed Extensions
+------------------
+
+The following extensions have been removed:
+
+  GL_HP_occlusion_test - this is superceded by GL_ARB_occlusion_query.
+
+
+
+To Do (someday) items
+---------------------
+ Switch to freeglut
+ Increase MAX_DRAWBUFFERS
+
+
+
+
+Driver			Status
+----------------------	----------------------
+DRI drivers		varies with the driver
+XMesa (Xlib)		implements OpenGL 1.5
+OSMesa (off-screen)	implements OpenGL 1.5
+Glide (3dfx Voodoo1/2)	implements OpenGL 1.3
+SVGA			implements OpenGL 1.3
+Wind River UGL		implements OpenGL 1.3
+Windows/Win32		implements OpenGL 1.5
+DJGPP			implements OpenGL 1.5
+GGI			implements OpenGL 1.3
+BeOS			implements OpenGL 1.5
+Allegro			needs updating
+D3D			needs updating
+
+
+----------------------------------------------------------------------
+$Id: RELNOTES-6.5,v 3.1 2005/09/14 14:34:54 brianp Exp $

docs/VERSIONS

@@ -1407,17 +1407,21 @@ Mesa Version History
 	- fragment programs that wrote result.depth.z didn't work
 
 
-6.4.1  November 30, 2005
+6.5  month, day, 2005
+    New:
+	- GL_EXT_packed_depth_stencil extension
+	- GL_EXT_timer_query extension
+	- reflect demo improved to support multiple windows
+	- singlebuffer demo (shows no/little-flicker single-buffered rendering)
+	- r200: enable GL_ARB_texture_env_crossbar, separate the texture
+	  sampling unit bits from the texture env combine enable bits
+	- r200: add support for GL_ATI_fragment_shader
+	- added fast XOR-mode line drawing optimization
+	- radeon: add support for all 3 tmus, GL_ARB_texture_cube_map
+	  and GL_EXT_fog_coord
+	- MESA_GLX_ALPHA_BITS env var for xlib driver
+    Changes:
+	- removed GL_HP_occlusion_test (use GL_ARB_occlusion_query instead)
+	- removed GL_SGIX/SGIS_pixel_texture extensions
     Bug fixes:
-	- redefining a vertex program string didn't take effect in TNL module
-	- fixed occasional segfault upon vertex/fragment parsing error
-	- vertex program LIT instruction didn't handle 0^0=1 correctly
-	- fragment program fog option didn't work with glDrawPixels, glBitmap
-	- USE_MGL_NAMESPACE didn't work for x86-64
-	- OSMesa demos were missing from previous release tarballs
-	- fixed problem with float->ushort conversion in glClear (bug 4992)
-	- popping of GL_EYE_PLANE texgen state was broken (bug 4996)
-	- popping of GL_SPOT_DIRECTION light state was broken (bug 5005)
-	- fixed occasional triangle color interpolation problem on VMS
-	- work around invalid free() call (bug 5131)
-	- fixed BSD X server compilation problem by including stdint.h
+

docs/contents.html

@@ -79,7 +79,7 @@ a:visited {
 <b>Links</b>
 <ul>
 <li><a href="http://www.opengl.org" target="_parent">OpenGL website</a>
-<li><a href="http://dri.sourceforge.net" target="_parent">DRI website</a>
+<li><a href="http://dri.freedesktop.org" target="_parent">DRI website</a>
 <li><a href="http://www.freedesktop.org" target="_parent">freedesktop.org</a>
 <li><a href="games.html" target="MainFrame">Games and Entertainment</a>
 <li><a href="libraries.html" target="MainFrame">Libraries and Toolkits</a>
@@ -98,4 +98,4 @@ WIDTH="88" HEIGHT="31" ALIGN="BOTTOM" ALT="Sourceforge.net" BORDER="0"></A>
 </blockquote>
 
 </body>
-</html>
+</html>

docs/download.html

@@ -9,7 +9,11 @@
 <H1>Downloading</H1>
 
 <p>
-Current stable release: <b>6.4.1</b>
+Last development release: <b>6.3.2</b>
+</p>
+
+<p>
+Last stable release: <b>6.2.1</b>
 </p>
 
 <p>

docs/envvars.html

@@ -37,6 +37,7 @@ software driver:
   "window" to render into a window, or "disable" to disable the Glide driver.
 <li>MESA_GLX_FORCE_ALPHA - if set, forces RGB windows to have an alpha channel.
 <li>MESA_GLX_DEPTH_BITS - specifies default number of bits for depth buffer.
+<li>MESA_GLX_ALPHA_BITS - specifies default number of bits for alpha channel.
 </ul>
 
 

docs/intro.html

@@ -136,7 +136,7 @@ GL_ARB_fragment_program extensions.
 <p>
 Ongoing: Mesa is used as the core of many hardware OpenGL drivers for
 the XFree86 X.org X servers within the
-<A href="http://dri.sourceforge.net/" target="_parent">DRI project</A>.
+<A href="http://dri.freedesktop.org/" target="_parent">DRI project</A>.
 I continue to enhance Mesa with new extensions and features.
 </p>
 

docs/modelers.html

@@ -62,8 +62,6 @@
 	</li><li><a href="http://mesa3d.sourceforge.net/notfound.html">VRweb</a> - VRML browser
 	</li><li><a href="http://www.csv.ica.uni-stuttgart.de/vrml/dune/" target="_parent">white_dune</a>
 	- graphical VRML97 Editor and animation tool
-	</li><li><a href="http://www.wings3d.org/" target="_parent">Wings 3D</a> - static 3D modeller
-	with VRML export.  Uses SDL library.
 </li></ul>
 
 

docs/news.html

@@ -11,35 +11,6 @@
 <H1>News</H1>
 
 
-<h2>November 29, 2005</h2>
-<p>
-Mesa 6.4.1 has been released.  This is a stable, bug-fix release.
-</p>
-<pre>
-    Bug fixes:
-	- redefining a vertex program string didn't take effect in TNL module
-	- fixed occasional segfault upon vertex/fragment parsing error
-	- vertex program LIT instruction didn't handle 0^0=1 correctly
-	- fragment program fog option didn't work with glDrawPixels, glBitmap
-	- USE_MGL_NAMESPACE didn't work for x86-64
-	- OSMesa demos were missing from previous release tarballs
-	- fixed problem with float->ushort conversion in glClear (bug 4992)
-	- popping of GL_EYE_PLANE texgen state was broken (bug 4996)
-	- popping of GL_SPOT_DIRECTION light state was broken (bug 5005)
-	- fixed occasional triangle color interpolation problem on VMS
-	- work around invalid free() call (bug 5131)
-	- fixed BSD X server compilation problem by including stdint.h
-</pre>
-<p>
-The MD5 checksums are:
-</p>
-<pre>
-TBD
-</pre>
-
-
-
-
 <h2>October 24, 2005</h2>
 <p>
 Mesa 6.4 has been released.  This is a stable, bug-fix release.
@@ -1131,6 +1102,6 @@ source code</a>.</p>
 
 
 <hr>
-$Id: news.html,v 3.24.2.4 2005/11/30 01:15:50 brianp Exp $
+$Id: news.html,v 3.25 2005/10/24 23:33:27 brianp Exp $
 </body>
 </html>

docs/relnotes.html

@@ -13,7 +13,6 @@ The release notes summarize what's new or changed in each Mesa release.
 </p>
 
 <UL>
-<LI><A HREF="RELNOTES-6.4.1">RELNOTES-6.4.1</A>
 <LI><A HREF="RELNOTES-6.4">RELNOTES-6.4</A>
 <LI><A HREF="RELNOTES-6.3.2">RELNOTES-6.3.2</A>
 <LI><A HREF="RELNOTES-6.3">RELNOTES-6.3</A>

docs/systems.html

@@ -33,7 +33,7 @@ Be warned that some drivers may be out of date and no longer function.
 
 <UL>
 <LI>Xlib driver for the X Window System <A HREF="README.X11">(README.X11)</A>
-<li><a href="http://dri.sourceforge.net/" target="_parent">
+<li><a href="http://dri.freedesktop.org/" target="_parent">
 DRI hardware drivers</a> for the X window system
 <LI>Microsoft Windows <A HREF="README.WIN32">(README.WIN32)</A>
 <LI>DEC VMS <A HREF="README.VMS">(README.VMS)</A>
@@ -53,4 +53,4 @@ DRI hardware drivers</a> for the X window system
 </UL>
 
 </body>
-</html>
+</html>

include/GL/gl.h

@@ -2231,6 +2231,46 @@ typedef void (APIENTRYP PFNGLBLENDEQUATIONSEPARATEATIPROC) (GLenum modeRGB, GLen
 #endif /* GL_ATI_blend_equation_separate */
 
 
+
+#ifndef GL_EXT_timer_query
+#define GL_EXT_timer_query 1
+
+/* Define 64-bit types */
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+   typedef long long int GLint64EXT;
+   typedef unsigned long long int GLuint64EXT;
+#elif defined(_WIN32)
+   typedef __int64 GLint64EXT;
+   typedef unsigned __int64 GLuint64EXT;
+#else
+   /* this might actually be a 32-bit type */
+   typedef long int GLint64EXT;
+   typedef unsigned long int GLuint64EXT;
+#endif
+
+#define GL_TIME_ELAPSED_EXT  0x88BF
+
+GLAPI void GLAPIENTRY glGetQueryObjecti64vEXT(GLuint id, GLenum pname, GLint64EXT *params);
+GLAPI void GLAPIENTRY glGetQueryObjectui64vEXT(GLuint id, GLenum pname, GLuint64EXT *params);
+
+typedef void (APIENTRYP PFNGLGETQUERYOBJECTI64VEXTPROC) (GLuint id, GLenum pname, GLint64EXT *params);
+typedef void (APIENTRYP PFNGLGETQUERYOBJECTUI64VEXTPROC) (GLuint id, GLenum pname, GLuint64EXT *params);
+
+#endif /* GL_EXT_timer_query */
+
+
+
+#ifndef GL_EXT_packed_depth_stencil
+#define GL_EXT_packed_depth_stencil 1
+
+#define GL_DEPTH_STENCIL_EXT          0x84F9
+#define GL_UNSIGNED_INT_24_8_EXT      0x84FA
+#define GL_DEPTH24_STENCIL8_EXT       0x88F0
+#define GL_TEXTURE_STENCIL_SIZE_EXT   0x88F1
+
+#endif /* GL_EXT_packed_depth_stencil */
+
+
 /**
  ** NOTE!!!!!  If you add new functions to this file, or update
  ** glext.h be sure to regenerate the gl_mangle.h file.  See comments

include/GL/gl_mangle.h

@@ -520,8 +520,10 @@
 #define glGetProgramStringNV		MANGLE(GetProgramStringNV)
 #define glGetQueryivARB		MANGLE(GetQueryivARB)
 #define glGetQueryiv		MANGLE(GetQueryiv)
+#define glGetQueryObjecti64vEXT		MANGLE(GetQueryObjecti64vEXT)
 #define glGetQueryObjectivARB		MANGLE(GetQueryObjectivARB)
 #define glGetQueryObjectiv		MANGLE(GetQueryObjectiv)
+#define glGetQueryObjectui64vEXT		MANGLE(GetQueryObjectui64vEXT)
 #define glGetQueryObjectuivARB		MANGLE(GetQueryObjectuivARB)
 #define glGetQueryObjectuiv		MANGLE(GetQueryObjectuiv)
 #define glGetRenderbufferParameterivEXT		MANGLE(GetRenderbufferParameterivEXT)

include/GL/glfbdev.h

@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  5.1
+ * Version:  6.5
  *
- * Copyright (C) 1999-2003  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2005  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -65,7 +65,7 @@ glFBDevGetString( int str );
 typedef void (*GLFBDevProc)();
 
 
-extern const GLFBDevProc
+extern GLFBDevProc
 glFBDevGetProcAddress( const char *procName );
 
 

include/GL/glx.h

@@ -1,6 +1,6 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.3
+ * Version:  6.5
  * 
  * Copyright (C) 1999-2005  Brian Paul   All Rights Reserved.
  * 
@@ -302,138 +302,6 @@ extern void (*glXGetProcAddress(const GLubyte *procname))( void );
 #else
 
 
-/*
- * 28. GLX_EXT_visual_info extension
- */
-#ifndef GLX_EXT_visual_info
-#define GLX_EXT_visual_info		1
-
-#define GLX_X_VISUAL_TYPE_EXT		0x22
-#define GLX_TRANSPARENT_TYPE_EXT	0x23
-#define GLX_TRANSPARENT_INDEX_VALUE_EXT	0x24
-#define GLX_TRANSPARENT_RED_VALUE_EXT	0x25
-#define GLX_TRANSPARENT_GREEN_VALUE_EXT	0x26
-#define GLX_TRANSPARENT_BLUE_VALUE_EXT	0x27
-#define GLX_TRANSPARENT_ALPHA_VALUE_EXT	0x28
-#define GLX_TRUE_COLOR_EXT		0x8002
-#define GLX_DIRECT_COLOR_EXT		0x8003
-#define GLX_PSEUDO_COLOR_EXT		0x8004
-#define GLX_STATIC_COLOR_EXT		0x8005
-#define GLX_GRAY_SCALE_EXT		0x8006
-#define GLX_STATIC_GRAY_EXT		0x8007
-#define GLX_NONE_EXT			0x8000
-#define GLX_TRANSPARENT_RGB_EXT		0x8008
-#define GLX_TRANSPARENT_INDEX_EXT	0x8009
-
-#endif /* 28. GLX_EXT_visual_info extension */
-
-
-
-/*
- * 41. GLX_SGI_video_sync
- */
-#ifndef GLX_SGI_video_sync
-#define GLX_SGI_video_sync 1
-
-extern int glXGetVideoSyncSGI(unsigned int *count);
-extern int glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count);
-
-#endif /* GLX_SGI_video_sync */
-
-
-
-/*
- * 42. GLX_EXT_visual_rating
- */
-#ifndef GLX_EXT_visual_rating
-#define GLX_EXT_visual_rating		1
-
-#define GLX_VISUAL_CAVEAT_EXT		0x20
-/*#define GLX_NONE_EXT			0x8000*/
-#define GLX_SLOW_VISUAL_EXT		0x8001
-#define GLX_NON_CONFORMANT_VISUAL_EXT	0x800D
-
-#endif /* GLX_EXT_visual_rating	*/
-
-
-
-/*
- * 47. GLX_EXT_import_context
- */
-#ifndef GLX_EXT_import_context
-#define GLX_EXT_import_context 1
-
-#define GLX_SHARE_CONTEXT_EXT		0x800A
-#define GLX_VISUAL_ID_EXT		0x800B
-#define GLX_SCREEN_EXT			0x800C
-
-extern void glXFreeContextEXT(Display *dpy, GLXContext context);
-
-extern GLXContextID glXGetContextIDEXT(const GLXContext context);
-
-extern Display *glXGetCurrentDisplayEXT(void);
-
-extern GLXContext glXImportContextEXT(Display *dpy, GLXContextID contextID);
-
-extern int glXQueryContextInfoEXT(Display *dpy, GLXContext context,
-                                  int attribute,int *value);
-
-#endif /* GLX_EXT_import_context */
-
-
-
-/*
- * 215. GLX_MESA_copy_sub_buffer
- */
-#ifndef GLX_MESA_copy_sub_buffer
-#define GLX_MESA_copy_sub_buffer 1
-
-extern void glXCopySubBufferMESA( Display *dpy, GLXDrawable drawable,
-                                  int x, int y, int width, int height );
-
-#endif
-
-
-
-/*
- * 216. GLX_MESA_pixmap_colormap
- */
-#ifndef GLX_MESA_pixmap_colormap
-#define GLX_MESA_pixmap_colormap 1
-
-extern GLXPixmap glXCreateGLXPixmapMESA( Display *dpy, XVisualInfo *visual,
-                                         Pixmap pixmap, Colormap cmap );
-
-#endif /* GLX_MESA_pixmap_colormap */
-
-
-
-/*
- * 217. GLX_MESA_release_buffers
- */
-#ifndef GLX_MESA_release_buffers
-#define GLX_MESA_release_buffers 1
-
-extern Bool glXReleaseBuffersMESA( Display *dpy, GLXDrawable d );
-
-#endif /* GLX_MESA_release_buffers */
-
-
-
-/*
- * 218. GLX_MESA_set_3dfx_mode
- */
-#ifndef GLX_MESA_set_3dfx_mode
-#define GLX_MESA_set_3dfx_mode 1
-
-#define GLX_3DFX_WINDOW_MODE_MESA       0x1
-#define GLX_3DFX_FULLSCREEN_MODE_MESA   0x2
-
-extern Bool glXSet3DfxModeMESA( int mode );
-
-#endif /* GLX_MESA_set_3dfx_mode */
-
-
 
 /*
  * ARB 2. GLX_ARB_get_proc_address
@@ -441,7 +309,8 @@ extern Bool glXSet3DfxModeMESA( int mode );
 #ifndef GLX_ARB_get_proc_address
 #define GLX_ARB_get_proc_address 1
 
-extern void (*glXGetProcAddressARB(const GLubyte *procName))();
+typedef void (*__GLXextFuncPtr)(void);
+extern __GLXextFuncPtr glXGetProcAddressARB (const GLubyte *);
 
 #endif /* GLX_ARB_get_proc_address */
 
@@ -469,19 +338,6 @@ typedef void ( * PFNGLXFREEMEMORYNVPROC) (GLvoid *pointer);
 #endif /* GLX_NV_vertex_array_range */
 
 
-
-/*
- * ???. GLX_MESA_agp_offset
- */ 
-#ifndef GLX_MESA_agp_offset
-#define GLX_MESA_agp_offset 1
-
-extern GLuint glXGetAGPOffsetMESA(const GLvoid *pointer);
-typedef GLuint (* PFNGLXGETAGPOFFSETMESAPROC) (const GLvoid *pointer);
-
-#endif /* GLX_MESA_agp_offset */
-
-
 /*
  * ???. GLX_MESA_allocate_memory
  */ 
@@ -497,8 +353,10 @@ typedef GLuint (* PFNGLXGETMEMORYOFFSETMESAPROC) (Display *dpy, int scrn, const
 
 #endif /* GLX_MESA_allocate_memory */
 
+
 /*
  * ARB ?. GLX_ARB_render_texture
+ * XXX This was never finalized!
  */
 #ifndef GLX_ARB_render_texture
 #define GLX_ARB_render_texture 1

include/GL/osmesa.h

@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.3
+ * Version:  6.5
  * 
- * Copyright (C) 1999-2003  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2005  Brian Paul   All Rights Reserved.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -61,7 +61,7 @@ extern "C" {
 
 
 #define OSMESA_MAJOR_VERSION 6
-#define OSMESA_MINOR_VERSION 3
+#define OSMESA_MINOR_VERSION 5
 #define OSMESA_PATCH_VERSION 0
 
 
@@ -267,6 +267,15 @@ GLAPI OSMESAproc GLAPIENTRY
 OSMesaGetProcAddress( const char *funcName );
 
 
+
+/**
+ * Enable/disable color clamping, off by default.
+ * New in Mesa 6.4.2
+ */
+GLAPI void GLAPIENTRY
+OSMesaColorClamp(GLboolean enable);
+
+
 #if defined(__BEOS__) || defined(__QUICKDRAW__)
 #pragma export off
 #endif

include/GL/wmesa.h

@@ -78,7 +78,7 @@ typedef struct wmesa_context *WMesaContext;
  * appropriate colormap.
  *
  * Input:
- *         hWnd - Window handle
+ *         hDC - Windows device or memory context
  *         Pal  - Palette to use
  *         rgb_flag - GL_TRUE = RGB mode,
  *                    GL_FALSE = color index mode
@@ -91,7 +91,7 @@ typedef struct wmesa_context *WMesaContext;
  *
  * Return:  a WMesa_context or NULL if error.
  */
-extern WMesaContext WMesaCreateContext(HWND hWnd,HPALETTE* pPal,
+extern WMesaContext WMesaCreateContext(HDC hDC,HPALETTE* pPal,
                                        GLboolean rgb_flag,
                                        GLboolean db_flag,
                                        GLboolean alpha_flag);

include/GLES/egl.h

@@ -235,21 +235,23 @@ GLAPI EGLBoolean APIENTRY eglCopyBuffers (EGLDisplay dpy, EGLSurface surface, Na
 #ifndef EGL_MESA_screen_surface
 #define EGL_MESA_screen_surface 1
 
-#define EGL_BAD_SCREEN_MESA        0x4000
-#define EGL_BAD_MODE_MESA          0x4001
-#define EGL_SCREEN_COUNT_MESA      0x4002
-#define EGL_SCREEN_POSITION_MESA   0x4003
-#define EGL_MODE_ID_MESA           0x4004
-#define EGL_REFRESH_RATE_MESA      0x4005
-#define EGL_OPTIMAL_MODE_MESA      0x4006
-#define EGL_SCREEN_BIT_MESA        0x08
+#define EGL_BAD_SCREEN_MESA                    0x4000
+#define EGL_BAD_MODE_MESA                      0x4001
+#define EGL_SCREEN_COUNT_MESA                  0x4002
+#define EGL_SCREEN_POSITION_MESA               0x4003
+#define EGL_SCREEN_POSITION_GRANULARITY_MESA   0x4004
+#define EGL_MODE_ID_MESA                       0x4005
+#define EGL_REFRESH_RATE_MESA                  0x4006
+#define EGL_OPTIMAL_MESA                       0x4007
+#define EGL_INTERLACED_MESA                    0x4008
+#define EGL_SCREEN_BIT_MESA                    0x08
 
 GLAPI EGLBoolean APIENTRY eglChooseModeMESA(EGLDisplay dpy, EGLScreenMESA screen, const EGLint *attrib_list, EGLModeMESA *modes, EGLint modes_size, EGLint *num_modes);
 GLAPI EGLBoolean APIENTRY eglGetModesMESA(EGLDisplay dpy, EGLScreenMESA screen, EGLModeMESA *modes, EGLint modes_size, EGLint *num_modes);
 GLAPI EGLBoolean APIENTRY eglGetModeAttribMESA(EGLDisplay dpy, EGLModeMESA mode, EGLint attribute, EGLint *value);
 GLAPI EGLBoolean APIENTRY eglGetScreensMESA(EGLDisplay dpy, EGLScreenMESA *screens, EGLint max_screens, EGLint *num_screens);
 GLAPI EGLSurface APIENTRY eglCreateScreenSurfaceMESA(EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list);
-GLAPI EGLBoolean APIENTRY eglShowSurfaceMESA(EGLDisplay dpy, EGLint screen, EGLSurface surface, EGLModeMESA mode);
+GLAPI EGLBoolean APIENTRY eglShowScreenSurfaceMESA(EGLDisplay dpy, EGLint screen, EGLSurface surface, EGLModeMESA mode);
 GLAPI EGLBoolean APIENTRY eglScreenPositionMESA(EGLDisplay dpy, EGLScreenMESA screen, EGLint x, EGLint y);
 GLAPI EGLBoolean APIENTRY eglQueryScreenMESA(EGLDisplay dpy, EGLScreenMESA screen, EGLint attribute, EGLint *value);
 GLAPI EGLBoolean APIENTRY eglQueryScreenSurfaceMESA(EGLDisplay dpy, EGLScreenMESA screen, EGLSurface *surface);

progs/demos/Makefile

@@ -25,6 +25,7 @@ PROGS = \
 	fplight \
 	gamma \
 	gears \
+	gearbox \
 	geartrain \
 	glinfo \
 	gloss \
@@ -37,13 +38,13 @@ PROGS = \
 	multiarb \
 	occlude \
 	paltex \
-	pixeltex \
 	pointblast \
 	ray \
 	readpix \
 	reflect \
 	renormal \
 	shadowtex \
+	singlebuffer \
 	spectex \
 	spriteblast \
 	stex3d \
@@ -51,7 +52,7 @@ PROGS = \
 	terrain \
 	tessdemo \
 	texcyl \
-	texdown \
+	texdown-pool \
 	texenv \
 	texobj \
 	trispd \

progs/demos/descrip.mms

@@ -10,7 +10,7 @@
 ##### MACROS #####
 
 INCDIR = ([--.include],[-.util])
-CFLAGS = /include=$(INCDIR)/prefix=all/name=(as_is,short)
+CFLAGS =/include=$(INCDIR)/prefix=all/name=(as_is,short)/float=ieee/ieee=denorm
 
 .ifdef SHARE
 GL_LIBS = $(XLIBS)

progs/demos/gearbox.c

@@ -0,0 +1,486 @@
+/*
+ * Use glCopyTexSubImage2D to draw animated gears on the sides of a box.
+ *
+ * Brian Paul
+ * 27 January 2006
+ */
+
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <GL/glut.h>
+
+#ifndef M_PI
+#define M_PI 3.14159265
+#endif
+
+static GLint WinWidth = 800, WinHeight = 500;
+static GLint TexWidth, TexHeight;
+static GLuint TexObj = 1;
+static GLenum IntFormat = GL_RGBA;
+
+static GLboolean WireFrame = GL_FALSE;
+
+static GLint T0 = 0;
+static GLint Frames = 0;
+static GLint Win = 0;
+
+static GLfloat ViewRotX = 20.0, ViewRotY = 30.0, ViewRotZ = 0.0;
+static GLint Gear1, Gear2, Gear3;
+static GLfloat GearRot = 0.0;
+static GLfloat CubeRot = 0.0;
+
+
+/**
+  Draw a gear wheel.  You'll probably want to call this function when
+  building a display list since we do a lot of trig here.
+ 
+  Input:  inner_radius - radius of hole at center
+          outer_radius - radius at center of teeth
+          width - width of gear
+          teeth - number of teeth
+          tooth_depth - depth of tooth
+ **/
+static void
+gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
+     GLint teeth, GLfloat tooth_depth)
+{
+  GLint i;
+  GLfloat r0, r1, r2;
+  GLfloat angle, da;
+  GLfloat u, v, len;
+
+  r0 = inner_radius;
+  r1 = outer_radius - tooth_depth / 2.0;
+  r2 = outer_radius + tooth_depth / 2.0;
+
+  da = 2.0 * M_PI / teeth / 4.0;
+
+  glShadeModel(GL_FLAT);
+
+  glNormal3f(0.0, 0.0, 1.0);
+
+  /* draw front face */
+  glBegin(GL_QUAD_STRIP);
+  for (i = 0; i <= teeth; i++) {
+    angle = i * 2.0 * M_PI / teeth;
+    glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
+    glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
+    if (i < teeth) {
+      glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
+      glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), width * 0.5);
+    }
+  }
+  glEnd();
+
+  /* draw front sides of teeth */
+  glBegin(GL_QUADS);
+  da = 2.0 * M_PI / teeth / 4.0;
+  for (i = 0; i < teeth; i++) {
+    angle = i * 2.0 * M_PI / teeth;
+
+    glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
+    glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
+    glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), width * 0.5);
+    glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), width * 0.5);
+  }
+  glEnd();
+
+  glNormal3f(0.0, 0.0, -1.0);
+
+  /* draw back face */
+  glBegin(GL_QUAD_STRIP);
+  for (i = 0; i <= teeth; i++) {
+    angle = i * 2.0 * M_PI / teeth;
+    glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
+    glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
+    if (i < teeth) {
+      glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), -width * 0.5);
+      glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
+    }
+  }
+  glEnd();
+
+  /* draw back sides of teeth */
+  glBegin(GL_QUADS);
+  da = 2.0 * M_PI / teeth / 4.0;
+  for (i = 0; i < teeth; i++) {
+    angle = i * 2.0 * M_PI / teeth;
+
+    glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), -width * 0.5);
+    glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), -width * 0.5);
+    glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
+    glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
+  }
+  glEnd();
+
+  /* draw outward faces of teeth */
+  glBegin(GL_QUAD_STRIP);
+  for (i = 0; i < teeth; i++) {
+    angle = i * 2.0 * M_PI / teeth;
+
+    glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
+    glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
+    u = r2 * cos(angle + da) - r1 * cos(angle);
+    v = r2 * sin(angle + da) - r1 * sin(angle);
+    len = sqrt(u * u + v * v);
+    u /= len;
+    v /= len;
+    glNormal3f(v, -u, 0.0);
+    glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
+    glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
+    glNormal3f(cos(angle), sin(angle), 0.0);
+    glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), width * 0.5);
+    glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), -width * 0.5);
+    u = r1 * cos(angle + 3 * da) - r2 * cos(angle + 2 * da);
+    v = r1 * sin(angle + 3 * da) - r2 * sin(angle + 2 * da);
+    glNormal3f(v, -u, 0.0);
+    glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), width * 0.5);
+    glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), -width * 0.5);
+    glNormal3f(cos(angle), sin(angle), 0.0);
+  }
+
+  glVertex3f(r1 * cos(0), r1 * sin(0), width * 0.5);
+  glVertex3f(r1 * cos(0), r1 * sin(0), -width * 0.5);
+
+  glEnd();
+
+  glShadeModel(GL_SMOOTH);
+
+  /* draw inside radius cylinder */
+  glBegin(GL_QUAD_STRIP);
+  for (i = 0; i <= teeth; i++) {
+    angle = i * 2.0 * M_PI / teeth;
+    glNormal3f(-cos(angle), -sin(angle), 0.0);
+    glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
+    glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
+  }
+  glEnd();
+
+}
+
+static void
+cleanup(void)
+{
+   glDeleteTextures(1, &TexObj);
+   glDeleteLists(Gear1, 1);
+   glDeleteLists(Gear2, 1);
+   glDeleteLists(Gear3, 1);
+   glutDestroyWindow(Win);
+}
+
+
+static void
+DrawGears(void)
+{
+   if (WireFrame) {
+      glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+   }
+
+   glPushMatrix();
+      glRotatef(20/*ViewRotX*/, 1.0, 0.0, 0.0);
+      glRotatef(ViewRotY, 0.0, 1.0, 0.0);
+      glRotatef(ViewRotZ, 0.0, 0.0, 1.0);
+
+      glPushMatrix();
+         glTranslatef(-3.0, -2.0, 0.0);
+         glRotatef(GearRot, 0.0, 0.0, 1.0);
+         glCallList(Gear1);
+      glPopMatrix();
+
+      glPushMatrix();
+         glTranslatef(3.1, -2.0, 0.0);
+         glRotatef(-2.0 * GearRot - 9.0, 0.0, 0.0, 1.0);
+         glCallList(Gear2);
+      glPopMatrix();
+
+      glPushMatrix();
+         glTranslatef(-3.1, 4.2, 0.0);
+         glRotatef(-2.0 * GearRot - 25.0, 0.0, 0.0, 1.0);
+         glCallList(Gear3);
+      glPopMatrix();
+
+  glPopMatrix();
+
+  glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+}
+
+
+static void
+DrawCube(void)
+{
+   static const GLfloat texcoords[4][2] = {
+      { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 }
+   };
+   static const GLfloat vertices[4][2] = {
+      { -1, -1 }, { 1, -1 }, { 1, 1 }, { -1, 1 }
+   };
+   static const GLfloat xforms[6][4] = {
+      {   0, 0, 1, 0 },
+      {  90, 0, 1, 0 },
+      { 180, 0, 1, 0 },
+      { 270, 0, 1, 0 },
+      {  90, 1, 0, 0 },
+      { -90, 1, 0, 0 }
+   };
+   static const GLfloat mat[4] = { 1.0, 1.0, 0.5, 1.0 };
+   GLint i, j;
+
+   glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, mat);
+   glEnable(GL_TEXTURE_2D);
+
+   glPushMatrix();
+      glRotatef(ViewRotX, 1.0, 0.0, 0.0);
+      glRotatef(15, 1, 0, 0);
+      glRotatef(CubeRot, 0, 1, 0);
+      glScalef(4, 4, 4);
+
+      for (i = 0; i < 6; i++) {
+         glPushMatrix();
+            glRotatef(xforms[i][0], xforms[i][1], xforms[i][2], xforms[i][3]);
+            glTranslatef(0, 0, 1.1);
+            glBegin(GL_POLYGON);
+               glNormal3f(0, 0, 1);
+               for (j = 0; j < 4; j++) {
+                  glTexCoord2fv(texcoords[j]);
+                  glVertex2fv(vertices[j]);
+               }
+            glEnd();
+         glPopMatrix();
+      }
+   glPopMatrix();
+
+   glDisable(GL_TEXTURE_2D);
+}
+
+
+static void
+draw(void)
+{
+   float ar;
+
+   glMatrixMode(GL_MODELVIEW);
+   glLoadIdentity();
+   glTranslatef(0.0, 0.0, -40.0);
+
+   glDisable(GL_SCISSOR_TEST);
+   glClear(GL_DEPTH_BUFFER_BIT);
+   glEnable(GL_SCISSOR_TEST);
+
+   /* draw gears */
+   glViewport(0, 0, TexWidth, TexHeight);
+   glScissor(0, 0, TexWidth, TexHeight);
+   glClearColor(0.5, 0.5, 0.8, 0.0);
+   glClearColor(1, 1, 1, 0);
+   glClear(GL_COLOR_BUFFER_BIT);
+
+   glMatrixMode(GL_PROJECTION);
+   glLoadIdentity();
+   glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 60.0);
+   glMatrixMode(GL_MODELVIEW);
+
+   DrawGears();
+
+   glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, TexWidth, TexHeight);
+   
+   /* draw textured cube */
+   glViewport(TexWidth, 0, WinWidth - TexWidth, WinHeight);
+   glScissor(TexWidth, 0, WinWidth - TexWidth, WinHeight);
+   glClearColor(0.5, 0.5, 0.8, 0.0);
+   glClear(GL_COLOR_BUFFER_BIT);
+
+   ar = (float) (WinWidth - TexWidth) / WinHeight;
+   glMatrixMode(GL_PROJECTION);
+   glLoadIdentity();
+   glFrustum(-ar, ar, -1.0, 1.0, 5.0, 60.0);
+   glMatrixMode(GL_MODELVIEW);
+
+   DrawCube();
+
+   /* finish up */
+   glutSwapBuffers();
+
+   Frames++;
+   {
+      GLint t = glutGet(GLUT_ELAPSED_TIME);
+      if (t - T0 >= 5000) {
+         GLfloat seconds = (t - T0) / 1000.0;
+         GLfloat fps = Frames / seconds;
+         printf("%d frames in %6.3f seconds = %6.3f FPS\n", Frames, seconds, fps);
+         T0 = t;
+         Frames = 0;
+      }
+   }
+}
+
+
+static void
+idle(void)
+{
+  static double t0 = -1.;
+  double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
+  if (t0 < 0.0)
+    t0 = t;
+  dt = t - t0;
+  t0 = t;
+
+  GearRot += 70.0 * dt;  /* 70 degrees per second */
+  GearRot = fmod(GearRot, 360.0); /* prevents eventual overflow */
+
+  CubeRot += 15.0 * dt;
+
+  glutPostRedisplay();
+}
+
+
+/* change view angle, exit upon ESC */
+static void
+key(unsigned char k, int x, int y)
+{
+   (void) x;
+   (void) y;
+   switch (k) {
+   case 'w':
+      WireFrame = !WireFrame;
+      break;
+   case 'z':
+      ViewRotZ += 5.0;
+      break;
+   case 'Z':
+      ViewRotZ -= 5.0;
+      break;
+   case 27:  /* Escape */
+      cleanup();
+      exit(0);
+      break;
+   default:
+      return;
+   }
+   glutPostRedisplay();
+}
+
+/* change view angle */
+static void
+special(int k, int x, int y)
+{
+   (void) x;
+   (void) y;
+   switch (k) {
+   case GLUT_KEY_UP:
+      ViewRotX += 5.0;
+      break;
+   case GLUT_KEY_DOWN:
+      ViewRotX -= 5.0;
+      break;
+   case GLUT_KEY_LEFT:
+      ViewRotY += 5.0;
+      break;
+   case GLUT_KEY_RIGHT:
+      ViewRotY -= 5.0;
+      break;
+   default:
+      return;
+   }
+   glutPostRedisplay();
+}
+
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+  WinWidth = width;
+  WinHeight = height;
+}
+
+
+static void
+init(int argc, char *argv[])
+{
+  static GLfloat pos[4] = {5.0, 5.0, 10.0, 0.0};
+  static GLfloat red[4] = {0.8, 0.1, 0.0, 1.0};
+  static GLfloat green[4] = {0.0, 0.8, 0.2, 1.0};
+  static GLfloat blue[4] = {0.2, 0.2, 1.0, 1.0};
+  GLint i;
+
+  glLightfv(GL_LIGHT0, GL_POSITION, pos);
+#if 0
+  glEnable(GL_CULL_FACE);
+#endif
+  glEnable(GL_LIGHTING);
+  glEnable(GL_LIGHT0);
+  glEnable(GL_DEPTH_TEST);
+
+  /* make the gears */
+  Gear1 = glGenLists(1);
+  glNewList(Gear1, GL_COMPILE);
+  glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red);
+  gear(1.0, 4.0, 1.0, 20, 0.7);
+  glEndList();
+
+  Gear2 = glGenLists(1);
+  glNewList(Gear2, GL_COMPILE);
+  glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green);
+  gear(0.5, 2.0, 2.0, 10, 0.7);
+  glEndList();
+
+  Gear3 = glGenLists(1);
+  glNewList(Gear3, GL_COMPILE);
+  glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue);
+  gear(1.3, 2.0, 0.5, 10, 0.7);
+  glEndList();
+
+  glEnable(GL_NORMALIZE);
+
+  /* xxx make size dynamic */
+  TexWidth = 256;
+  TexHeight = 256;
+
+   glBindTexture(GL_TEXTURE_2D, TexObj);
+   glTexImage2D(GL_TEXTURE_2D, 0, IntFormat, TexWidth, TexHeight, 0,
+                GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+   glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+
+  for ( i=1; i<argc; i++ ) {
+    if (strcmp(argv[i], "-info")==0) {
+      printf("GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
+      printf("GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
+      printf("GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
+      printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
+    }
+  }
+}
+
+
+static void 
+visible(int vis)
+{
+  if (vis == GLUT_VISIBLE)
+    glutIdleFunc(idle);
+  else
+    glutIdleFunc(NULL);
+}
+
+
+int
+main(int argc, char *argv[])
+{
+   glutInit(&argc, argv);
+   glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
+
+   glutInitWindowSize(WinWidth, WinHeight);
+   Win = glutCreateWindow("gearbox");
+   init(argc, argv);
+
+   glutDisplayFunc(draw);
+   glutReshapeFunc(reshape);
+   glutKeyboardFunc(key);
+   glutSpecialFunc(special);
+   glutVisibilityFunc(visible);
+
+   glutMainLoop();
+   return 0;             /* ANSI C requires main to return int. */
+}

progs/demos/morph3d.c

@@ -176,6 +176,7 @@ So the angle is:
 
 static int       mono=0;
 static int       smooth=1;
+static int       anim=1;
 static GLint     WindH, WindW;
 static GLfloat   step=0;
 static GLfloat   seno;
@@ -660,13 +661,6 @@ static void draw_ico( void )
 }
 
 static void draw ( void ) {
-  static double t0 = -1.;
-  double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-  if (t0 < 0.0)
-     t0 = t;
-  dt = t - t0;
-  t0 = t;
-
   glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
 
   glPushMatrix();
@@ -688,11 +682,19 @@ static void draw ( void ) {
 
   glutSwapBuffers();
 
-  step += dt;
 }
 
 static void idle_( void )
 {
+  static double t0 = -1.;
+  double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
+  if (t0 < 0.0)
+     t0 = t;
+  dt = t - t0;
+  t0 = t;
+
+  step += dt;
+
    glutPostRedisplay();
 }
 
@@ -718,11 +720,19 @@ static void key( unsigned char k, int x, int y )
     case '4': object=4; break;
     case '5': object=5; break;
     case ' ': mono^=1; break;
-    case 13: smooth^=1; break;
+    case 's': smooth^=1; break;
+    case 'a':
+       anim^=1;
+       if (anim)
+          glutIdleFunc( idle_ );
+       else
+          glutIdleFunc(NULL);
+       break;
     case 27:
        exit(0);
   }
   pinit();
+  glutPostRedisplay();
 }
 
 static void pinit(void)

progs/demos/pixeltex.c

@@ -1,210 +0,0 @@
-/*
- * GL_SGIS_pixel_texture demo
- *
- * Brian Paul
- * 6 Apr 2000
- *
- * Copyright (C) 2000  Brian Paul   All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- * 
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/*
- * How this works:
- * 1. We load the image into a 2D texture.
- * 2. We generate a sequence of RGB images in which the R component
- *    is really the S texture coordinate and the G component is really
- *    the T texture coordinate.
- *    By warping the mapping from R to S and G to T we can get non-linear
- *    distortions.
- * 3. Draw the warped image (a 2-D warping function) with pixel texgen
- *    enabled.
- * 4. Loop over the warped images to animate.
- *
- * The pixel texgen extension can also be used to do color-space
- * conversions.  For example, we could convert YCR to RGB with a
- * 3D texture map which takes YCR as the S,T,R texture coordinate and
- * returns RGB texel values.
- *
- * You can use this extension in (at least) two ways:
- * 1. glDrawPixels w/ color space conversion/warping
- * 2. glDrawPixels to spatially warp another image in texture memory
- *
- * We're basically using glDrawPixels to draw a texture coordinate image.
- */
-
-
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <GL/glut.h>
-#include <GL/glext.h>
-#include "readtex.h"
-
-#define TEXTURE_FILE "../images/girl.rgb"
-
-static int ImgWidth = 300, ImgHeight = 300;
-#define FRAMES 20
-static GLubyte *ImgData[FRAMES];
-static GLint Frame = 0;
-
-static GLboolean TextureFlag = GL_TRUE;
-
-
-static void Display( void )
-{
-   glClear( GL_COLOR_BUFFER_BIT );
-
-   if (TextureFlag) {
-      glEnable(GL_PIXEL_TEXTURE_SGIS);
-      glEnable(GL_TEXTURE_2D);
-   }
-   else {
-      glDisable(GL_PIXEL_TEXTURE_SGIS);
-      glDisable(GL_TEXTURE_2D);
-   }
-
-   glColor3f(1, 1, 1);
-   glRasterPos2f(10, 10);
-   glDrawPixels(ImgWidth, ImgHeight, GL_RGB, GL_UNSIGNED_BYTE, ImgData[Frame]);
-
-   glutSwapBuffers();
-}
-
-
-static void Reshape( int width, int height )
-{
-   glViewport( 0, 0, width, height );
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glOrtho(0, width, 0, height, -1, 1);
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case ' ':
-         TextureFlag = !TextureFlag;
-         break;
-      case 27:
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void Idle(void)
-{
-   Frame++;
-   if (Frame >= FRAMES)
-      Frame = 0;
-   glutPostRedisplay();
-}
-
-
-static GLubyte warp(GLfloat s, int frame)
-{
-   static const GLfloat pi = 3.14159265;
-   static int halfFrame = FRAMES / 2;
-   GLfloat y, weight, v;
-   if (frame >= halfFrame)
-      frame = halfFrame - (frame - halfFrame);
-   y = sin(s * pi);
-   weight = (float) frame / (FRAMES-1);
-   v = y * (0.8 * weight + 0.2);
-   return (GLint) (v * 255.0F);
-}
-
-
-static void InitImage(void)
-{
-   int i, j, frame;
-   for (frame = 0; frame < FRAMES; frame++) {
-      ImgData[frame] = (GLubyte *) malloc(ImgWidth * ImgHeight * 3);
-      for (i = 0; i < ImgHeight; i++) {
-         for (j = 0; j < ImgWidth; j++) {
-            GLubyte *pixel = ImgData[frame] + (i * ImgWidth + j) * 3;
-            pixel[0] = warp((float) j / (ImgWidth - 0), frame);
-            pixel[1] = warp((float) i / (ImgHeight - 0), frame);
-            pixel[2] = 0.0;
-         }
-      }
-   }
-}
-
-
-static void Init( int argc, char *argv[] )
-{
-   const char *exten = (const char *) glGetString(GL_EXTENSIONS);
-   if (!strstr(exten, "GL_SGIS_pixel_texture")) {
-      printf("Sorry, GL_SGIS_pixel_texture not supported by this renderer.\n");
-      exit(1);
-   }
-
-   /* linear filtering looks nicer, but it's slower, since it's in software */
-#if 1
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-#else
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-#endif
-
-   glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
-   if (!LoadRGBMipmaps(TEXTURE_FILE, GL_RGB)) {
-      printf("Error: couldn't load texture image\n");
-      exit(1);
-   }
-
-   glClearColor(0.3, 0.3, 0.4, 1.0);
-
-   InitImage();
-
-   printf("Hit SPACE to toggle pixel texgen\n");
-}
-
-
-int main( int argc, char *argv[] )
-{
-   glutInit( &argc, argv );
-   glutInitWindowSize( 330, 330 );
-   glutInitWindowPosition( 0, 0 );
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
-   glutCreateWindow(argv[0] );
-
-   Init( argc, argv );
-
-   glutKeyboardFunc( Key );
-   glutReshapeFunc( Reshape );
-   glutDisplayFunc( Display );
-   glutIdleFunc( Idle );
-
-   glutMainLoop();
-   return 0;
-}

progs/demos/reflect.c

@@ -1,4 +1,3 @@
-
 /*
  * Demo of a reflective, texture-mapped surface with OpenGL.
  * Brian Paul   August 14, 1995   This file is in the public domain.
@@ -24,9 +23,11 @@
  *   Dirk Reiners (reiners@igd.fhg.de) made some modifications to this code.
  *   Mark Kilgard (April 1997)
  *   Brian Paul (April 2000 - added keyboard d/s options)
+ *   Brian Paul (August 2005 - added multi window feature)
  */
 
 
+#include <assert.h>
 #include <math.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -36,40 +37,102 @@
 
 
 #define DEG2RAD (3.14159/180.0)
-
 #define TABLE_TEXTURE "../images/tile.rgb"
-
-static GLint ImgWidth, ImgHeight;
-static GLenum ImgFormat;
-static GLubyte *Image = NULL;
-
 #define MAX_OBJECTS 2
-static GLint table_list;
-static GLint objects_list[MAX_OBJECTS];
-
-static GLfloat xrot, yrot;
-static GLfloat spin;
-
-static GLint Width = 400, Height = 300;
-static GLenum ShowBuffer = GL_NONE;
-static GLboolean Anim = GL_TRUE;
-
-/* performance info */
-static GLint T0 = 0;
-static GLint Frames = 0;
+#define INIT_WIDTH 400
+#define INIT_HEIGHT 300
 
 
-static void make_table( void )
+struct window {
+   int id;               /* returned by glutCreateWindow() */
+   int width, height;
+   GLboolean anim;
+   GLfloat xrot, yrot;
+   GLfloat spin;
+   GLenum showBuffer;
+   GLenum drawBuffer;
+   GLuint table_list;
+   GLuint objects_list[MAX_OBJECTS];
+   double t0;
+   struct window *next;
+};
+
+
+static struct window *FirstWindow = NULL;
+
+
+static void
+CreateWindow(void);
+
+
+static struct window *
+CurrentWindow(void)
+{
+   int id = glutGetWindow();
+   struct window *w;
+   for (w = FirstWindow; w; w = w->next) {
+      if (w->id == id)
+         return w;
+   }
+   return NULL;
+}
+
+
+static GLboolean
+AnyAnimating(void)
+{
+   struct window *w;
+   for (w = FirstWindow; w; w = w->next) {
+      if (w->anim)
+         return 1;
+   }
+   return 0;
+}
+
+
+static void
+KillWindow(struct window *w)
+{
+   struct window *win, *prev = NULL;
+   for (win = FirstWindow; win; win = win->next) {
+      if (win == w) {
+         if (prev) {
+            prev->next = win->next;
+         }
+         else {
+            FirstWindow = win->next;
+         }
+         glutDestroyWindow(win->id);
+         win->next = NULL;
+         free(win);
+         return;
+      }
+      prev = win;
+   }
+}
+
+
+static void
+KillAllWindows(void)
+{
+   while (FirstWindow)
+      KillWindow(FirstWindow);
+}
+
+
+static GLuint
+MakeTable(void)
 {
    static GLfloat table_mat[] = { 1.0, 1.0, 1.0, 0.6 };
    static GLfloat gray[] = { 0.4, 0.4, 0.4, 1.0 };
+   GLuint table_list;
 
    table_list = glGenLists(1);
    glNewList( table_list, GL_COMPILE );
 
    /* load table's texture */
    glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, table_mat );
-/*   glMaterialfv( GL_FRONT, GL_EMISSION, gray );*/
+   /*glMaterialfv( GL_FRONT, GL_EMISSION, gray );*/
    glMaterialfv( GL_FRONT, GL_DIFFUSE, table_mat );
    glMaterialfv( GL_FRONT, GL_AMBIENT, gray );
    
@@ -88,10 +151,12 @@ static void make_table( void )
    glDisable( GL_TEXTURE_2D );
 
    glEndList();
+   return table_list;
 }
 
 
-static void make_objects( void )
+static void
+MakeObjects(GLuint *objects_list)
 {
    GLUquadricObj *q;
 
@@ -116,32 +181,36 @@ static void make_objects( void )
    glMaterialfv( GL_FRONT, GL_EMISSION, black );
    gluCylinder( q, 1.5, 0.0,  2.5, 15, 1 );
    glEndList();
+
+   gluDeleteQuadric(q);
 }
 
 
-static void init( void )
+static void
+InitWindow(struct window *w)
 {
-   make_table();
-   make_objects();
+   GLint imgWidth, imgHeight;
+   GLenum imgFormat;
+   GLubyte *image = NULL;
 
-   Image = LoadRGBImage( TABLE_TEXTURE, &ImgWidth, &ImgHeight, &ImgFormat );
-   if (!Image) {
+   w->table_list = MakeTable();
+   MakeObjects(w->objects_list);
+
+   image = LoadRGBImage( TABLE_TEXTURE, &imgWidth, &imgHeight, &imgFormat );
+   if (!image) {
       printf("Couldn't read %s\n", TABLE_TEXTURE);
       exit(0);
    }
 
-   gluBuild2DMipmaps(GL_TEXTURE_2D, 3, ImgWidth, ImgHeight,
-                     ImgFormat, GL_UNSIGNED_BYTE, Image);
+   gluBuild2DMipmaps(GL_TEXTURE_2D, 3, imgWidth, imgHeight,
+                     imgFormat, GL_UNSIGNED_BYTE, image);
+   free(image);
 
    glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
    glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
    glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
    glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
 
-   xrot = 30.0;
-   yrot = 50.0;
-   spin = 0.0;
-
    glShadeModel( GL_FLAT );
    
    glEnable( GL_LIGHT0 );
@@ -153,14 +222,15 @@ static void init( void )
 }
 
 
-
-static void reshape(int w, int h)
+static void
+Reshape(int width, int height)
 {
+   struct window *w = CurrentWindow();
    GLfloat yAspect = 2.5;
-   GLfloat xAspect = yAspect * (float) w / (float) h;
-   Width = w;
-   Height = h;
-   glViewport(0, 0, w, h);
+   GLfloat xAspect = yAspect * (float) width / (float) height;
+   w->width = width;
+   w->height = height;
+   glViewport(0, 0, width, height);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    glFrustum( -xAspect, xAspect, -yAspect, yAspect, 10.0, 30.0 );
@@ -169,8 +239,8 @@ static void reshape(int w, int h)
 }
 
 
-
-static void draw_objects( GLfloat eyex, GLfloat eyey, GLfloat eyez )
+static void
+DrawObjects(struct window *w, GLfloat eyex, GLfloat eyey, GLfloat eyez)
 {
    (void) eyex;
    (void) eyey;
@@ -178,62 +248,65 @@ static void draw_objects( GLfloat eyex, GLfloat eyey, GLfloat eyez )
 #ifndef USE_ZBUFFER
    if (eyex<0.5) {
 #endif
-	   glPushMatrix();
-	   glTranslatef( 1.0, 1.5, 0.0 );
-	   glRotatef( spin, 1.0, 0.5, 0.0 );
-	   glRotatef( 0.5*spin, 0.0, 0.5, 1.0 );
-	   glCallList( objects_list[0] );
-	   glPopMatrix();
-	
-	   glPushMatrix();
-	   glTranslatef( -1.0, 0.85+3.0*fabs( cos(0.01*spin) ), 0.0 );
-	   glRotatef( 0.5*spin, 0.0, 0.5, 1.0 );
-	   glRotatef( spin, 1.0, 0.5, 0.0 );
-	   glScalef( 0.5, 0.5, 0.5 );
-	   glCallList( objects_list[1] );
-	   glPopMatrix();
+      glPushMatrix();
+      glTranslatef( 1.0, 1.5, 0.0 );
+      glRotatef( w->spin, 1.0, 0.5, 0.0 );
+      glRotatef( 0.5*w->spin, 0.0, 0.5, 1.0 );
+      glCallList( w->objects_list[0] );
+      glPopMatrix();
+      
+      glPushMatrix();
+      glTranslatef( -1.0, 0.85+3.0*fabs( cos(0.01*w->spin) ), 0.0 );
+      glRotatef( 0.5*w->spin, 0.0, 0.5, 1.0 );
+      glRotatef( w->spin, 1.0, 0.5, 0.0 );
+      glScalef( 0.5, 0.5, 0.5 );
+      glCallList( w->objects_list[1] );
+      glPopMatrix();
 #ifndef USE_ZBUFFER
    }
    else {	
-	   glPushMatrix();
-	   glTranslatef( -1.0, 0.85+3.0*fabs( cos(0.01*spin) ), 0.0 );
-	   glRotatef( 0.5*spin, 0.0, 0.5, 1.0 );
-	   glRotatef( spin, 1.0, 0.5, 0.0 );
-	   glScalef( 0.5, 0.5, 0.5 );
-	   glCallList( objects_list[1] );
-	   glPopMatrix();
+      glPushMatrix();
+      glTranslatef( -1.0, 0.85+3.0*fabs( cos(0.01*w->spin) ), 0.0 );
+      glRotatef( 0.5*w->spin, 0.0, 0.5, 1.0 );
+      glRotatef( w->spin, 1.0, 0.5, 0.0 );
+      glScalef( 0.5, 0.5, 0.5 );
+      glCallList( w->objects_list[1] );
+      glPopMatrix();
 
-	   glPushMatrix();
-	   glTranslatef( 1.0, 1.5, 0.0 );
-	   glRotatef( spin, 1.0, 0.5, 0.0 );
-	   glRotatef( 0.5*spin, 0.0, 0.5, 1.0 );
-	   glCallList( objects_list[0] );
-	   glPopMatrix();
+      glPushMatrix();
+      glTranslatef( 1.0, 1.5, 0.0 );
+      glRotatef( w->spin, 1.0, 0.5, 0.0 );
+      glRotatef( 0.5*w->spin, 0.0, 0.5, 1.0 );
+      glCallList( w->objects_list[0] );
+      glPopMatrix();
    }
 #endif
 }
 
 
-
-static void draw_table( void )
+static void
+DrawTable(struct window *w)
 {
-   glCallList( table_list );
+   glCallList(w->table_list);
 }
 
 
-
-static void draw_scene( void )
+static void
+DrawWindow(void)
 {
+   struct window *w = CurrentWindow();
    static GLfloat light_pos[] = { 0.0, 20.0, 0.0, 1.0 };
    GLfloat dist = 20.0;
    GLfloat eyex, eyey, eyez;
 
+   glDrawBuffer(w->drawBuffer);
+   glReadBuffer(w->drawBuffer);
+
    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
 
-
-   eyex = dist * cos(yrot*DEG2RAD) * cos(xrot*DEG2RAD);
-   eyez = dist * sin(yrot*DEG2RAD) * cos(xrot*DEG2RAD);
-   eyey = dist * sin(xrot*DEG2RAD);
+   eyex = dist  *  cos(w->yrot * DEG2RAD)  *  cos(w->xrot * DEG2RAD);
+   eyez = dist  *  sin(w->yrot * DEG2RAD)  *  cos(w->xrot * DEG2RAD);
+   eyey = dist  *  sin(w->xrot * DEG2RAD);
 
    /* view from top */
    glPushMatrix();
@@ -247,7 +320,7 @@ static void draw_scene( void )
    glStencilFunc( GL_ALWAYS, 1, 0xffffffff );
    glStencilOp( GL_REPLACE, GL_REPLACE, GL_REPLACE );
    glColorMask( GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE );
-   draw_table();
+   DrawTable(w);
    glColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
 
    glEnable( GL_DEPTH_TEST );
@@ -264,7 +337,7 @@ static void draw_scene( void )
       /* Reposition light in reflected space. */
       glLightfv(GL_LIGHT0, GL_POSITION, light_pos);
 
-      draw_objects(eyex, eyey, eyez);
+      DrawObjects(w, eyex, eyey, eyez);
       glPopMatrix();
 
       /* Restore light's original unreflected position. */
@@ -277,128 +350,224 @@ static void draw_scene( void )
    glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
 
    glEnable( GL_TEXTURE_2D );
-   draw_table();
+   DrawTable(w);
    glDisable( GL_TEXTURE_2D );
    glDisable( GL_BLEND );
 
    /* view from top */
    glPushMatrix();
 
-   draw_objects(eyex, eyey, eyez);
+   DrawObjects(w, eyex, eyey, eyez);
 
    glPopMatrix();
 
    glPopMatrix();
 
-   if (ShowBuffer == GL_DEPTH) {
-      ShowDepthBuffer(Width, Height, 1.0, 0.0);
+   if (w->showBuffer == GL_DEPTH) {
+      ShowDepthBuffer(w->width, w->height, 1.0, 0.0);
    }
-   else if (ShowBuffer == GL_STENCIL) {
-      ShowStencilBuffer(Width, Height, 255.0, 0.0);
+   else if (w->showBuffer == GL_STENCIL) {
+      ShowStencilBuffer(w->width, w->height, 255.0, 0.0);
    }
-   else if (ShowBuffer == GL_ALPHA) {
-      ShowAlphaBuffer(Width, Height);
+   else if (w->showBuffer == GL_ALPHA) {
+      ShowAlphaBuffer(w->width, w->height);
    }
 
-   glutSwapBuffers();
+   if (w->drawBuffer == GL_BACK)
+      glutSwapBuffers();
+   else
+      glFinish();
 
+   /* calc/show frame rate */
    {
+      static GLint t0 = 0;
+      static GLint frames = 0;
       GLint t = glutGet(GLUT_ELAPSED_TIME);
-      Frames++;
-      if (t - T0 >= 5000) {
-         GLfloat seconds = (t - T0) / 1000.0;
-         GLfloat fps = Frames / seconds;
-         printf("%d frames in %g seconds = %g FPS\n", Frames, seconds, fps);
-         T0 = t;
-         Frames = 0;
+      frames++;
+      if (t - t0 >= 5000) {
+         GLfloat seconds = (t - t0) / 1000.0;
+         GLfloat fps = frames / seconds;
+         printf("%d frames in %g seconds = %g FPS\n", frames, seconds, fps);
+         t0 = t;
+         frames = 0;
       }
    }
 }
 
 
-static void idle( void )
+static void
+Idle(void)
 {
-   static double t0 = -1.;
-   double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-   if (t0 < 0.0)
-      t0 = t;
-   dt = t - t0;
-   t0 = t;
-   spin += 60.0 * dt;
-   yrot += 90.0 * dt;
-   glutPostRedisplay();
+   double t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
+   struct window *w;
+   for (w = FirstWindow; w; w = w->next) {
+      if (w->anim) {
+         double dt;
+         if (w->t0 < 0.0)
+            w->t0 = t;
+         dt = t - w->t0;
+         w->t0 = t;
+         w->spin += 60.0 * dt;
+         w->yrot += 90.0 * dt;
+         assert(w->id);
+         glutSetWindow(w->id);
+         glutPostRedisplay();
+      }
+   }
 }
 
 
-static void Key( unsigned char key, int x, int y )
+static void
+UpdateIdleFunc(void)
 {
+   if (AnyAnimating())
+      glutIdleFunc(Idle);
+   else
+      glutIdleFunc(NULL);
+}
+
+static void
+Key(unsigned char key, int x, int y)
+{
+   struct window *w = CurrentWindow();
    (void) x;
    (void) y;
-   if (key == 'd') {
-      ShowBuffer = GL_DEPTH;
-   }
-   else if (key == 's') {
-      ShowBuffer = GL_STENCIL;
-   }
-   else if (key == 'a') {
-      ShowBuffer = GL_ALPHA;
-   }
-   else if (key == ' ') {
-      Anim = !Anim;
-      if (Anim)
-         glutIdleFunc(idle);
+
+   switch (key) {
+   case 'd':
+      w->showBuffer = GL_DEPTH;
+      glutPostRedisplay();
+      break;
+   case 's':
+      w->showBuffer = GL_STENCIL;
+      glutPostRedisplay();
+      break;
+   case 'a':
+      w->showBuffer = GL_ALPHA;
+      glutPostRedisplay();
+      break;
+   case 'c':
+      w->showBuffer = GL_NONE;
+      glutPostRedisplay();
+      break;
+   case 'f':
+      if (w->drawBuffer == GL_FRONT)
+         w->drawBuffer = GL_BACK;
       else
-         glutIdleFunc(NULL);
-   }
-   else if (key==27) {
+         w->drawBuffer = GL_FRONT;
+      glutPostRedisplay();
+      break;
+   case ' ':
+      w->anim = !w->anim;
+      w->t0 = -1;
+      UpdateIdleFunc();
+      glutPostRedisplay();
+      break;
+   case 'n':
+      CreateWindow();
+      UpdateIdleFunc();
+      break;
+   case 'k':
+      KillWindow(w);
+      if (FirstWindow == NULL)
+         exit(0);
+      break;
+   case 27:
+      KillAllWindows();
       exit(0);
+      break;
+   default:
+      ;
    }
-   else {
-      ShowBuffer = GL_NONE;
-   }
-   glutPostRedisplay();
 }
 
 
-static void SpecialKey( int key, int x, int y )
+static void
+SpecialKey(int key, int x, int y)
 {
+   struct window *w = CurrentWindow();
    (void) x;
    (void) y;
    switch (key) {
       case GLUT_KEY_UP:
-         xrot += 3.0;
-         if ( xrot > 85 )
-            xrot = 85;
+         w->xrot += 3.0;
+         if (w->xrot > 85)
+            w->xrot = 85;
          break;
       case GLUT_KEY_DOWN:
-         xrot -= 3.0;
-         if ( xrot < 5 )
-            xrot = 5;
+         w->xrot -= 3.0;
+         if (w->xrot < 5)
+            w->xrot = 5;
          break;
       case GLUT_KEY_LEFT:
-         yrot += 3.0;
+         w->yrot += 3.0;
          break;
       case GLUT_KEY_RIGHT:
-         yrot -= 3.0;
+         w->yrot -= 3.0;
          break;
    }
    glutPostRedisplay();
 }
 
 
-int main( int argc, char *argv[] )
+static void
+CreateWindow(void)
 {
-   glutInit(&argc, argv);
-   glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH | GLUT_STENCIL | GLUT_ALPHA);
-   glutInitWindowPosition( 0, 0 );
-   glutInitWindowSize( Width, Height );
-   glutCreateWindow(argv[0]);
-   glutReshapeFunc(reshape);
-   glutDisplayFunc(draw_scene);
+   char title[1000];
+   struct window *w = (struct window *) calloc(1, sizeof(struct window));
+   
+   glutInitWindowSize(INIT_WIDTH, INIT_HEIGHT);
+   w->id = glutCreateWindow("foo");
+   sprintf(title, "reflect window %d", w->id);
+   glutSetWindowTitle(title);
+   assert(w->id);
+   w->width = INIT_WIDTH;
+   w->height = INIT_HEIGHT;
+   w->anim = GL_TRUE;
+   w->xrot = 30.0;
+   w->yrot = 50.0;
+   w->spin = 0.0;
+   w->showBuffer = GL_NONE;
+   w->drawBuffer = GL_BACK;
+
+   InitWindow(w);
+
+   glutReshapeFunc(Reshape);
+   glutDisplayFunc(DrawWindow);
    glutKeyboardFunc(Key);
    glutSpecialFunc(SpecialKey);
-   glutIdleFunc(idle);
-   init();
+
+   /* insert at head of list */
+   w->next = FirstWindow;
+   FirstWindow = w;
+}
+
+
+static void
+Usage(void)
+{
+   printf("Keys:\n");
+   printf("  a      - show alpha buffer\n");
+   printf("  d      - show depth buffer\n");
+   printf("  s      - show stencil buffer\n");
+   printf("  c      - show color buffer\n");
+   printf("  f      - toggle rendering to front/back color buffer\n");
+   printf("  n      - create new window\n");
+   printf("  k      - kill window\n");
+   printf("  SPACE  - toggle animation\n");
+   printf("  ARROWS - rotate scene\n");
+}
+
+
+int
+main(int argc, char *argv[])
+{
+   glutInit(&argc, argv);
+   glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH |
+                       GLUT_STENCIL | GLUT_ALPHA);
+   CreateWindow();
+   glutIdleFunc(Idle);
+   Usage();
    glutMainLoop();
    return 0;
 }

progs/demos/singlebuffer.c

@@ -0,0 +1,269 @@
+/*
+ * Demo of (nearly) flicker-free drawing with a single color buffer.
+ *
+ * Basically, draw the scene into the Z buffer first, then draw the
+ * scene into the color buffer.  Finally, "clear" the background by
+ * setting the fragments we didn't hit earlier.
+ *
+ * This won't work if you need blending.  The technique works best
+ * when the scene is relatively simple and can be rendered quickly
+ * (i.e. with hardware), and when the objects don't move too much from
+ * one frame to the next.
+ *
+ * Brian Paul
+ * 25 August 2005
+ *
+ * See Mesa license for terms.
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <GL/glut.h>
+
+
+#define FLICKER 0
+#define NO_FLICKER 1
+
+static GLint Mode = NO_FLICKER;
+static GLfloat Xrot = 0, Yrot = 0, Zrot = 0;
+static GLboolean Anim = GL_TRUE;
+static GLfloat ClearColor[4] = {0.2, 0.2, 0.9, 0.0};
+static GLfloat NearClip = 5.0, FarClip = 25.0, ViewDist = 7.0;
+static double PrevTime = -1;
+
+struct box {
+   float tx, ty, tz;
+   float rx, ry, rz, ra;
+   float sx, sy, sz;
+   float color[4];
+};
+
+#define NUM_BOXES 25
+
+struct box Boxes[NUM_BOXES];
+
+
+/* Return random float in [0,1] */
+static float
+Random(void)
+{
+   int i = rand();
+   return (float) (i % 1000) / 1000.0;
+}
+
+
+static void
+MakeBoxes(void)
+{
+   int i;
+   for (i = 0; i < NUM_BOXES; i++) {
+      Boxes[i].tx = -1.0 + 2.0 * Random();
+      Boxes[i].ty = -1.0 + 2.0 * Random();
+      Boxes[i].tz = -1.0 + 2.0 * Random();
+      Boxes[i].sx = 0.1 + Random() * 0.4;
+      Boxes[i].sy = 0.1 + Random() * 0.4;
+      Boxes[i].sz = 0.1 + Random() * 0.4;
+      Boxes[i].rx = Random();
+      Boxes[i].ry = Random();
+      Boxes[i].rz = Random();
+      Boxes[i].ra = Random() * 360.0;
+      Boxes[i].color[0] = Random();
+      Boxes[i].color[1] = Random();
+      Boxes[i].color[2] = Random();
+      Boxes[i].color[3] = 1.0;
+   }
+}
+
+
+static void
+DrawBoxes(void)
+{
+   int i;
+   for (i = 0; i < NUM_BOXES; i++) {
+      glPushMatrix();
+      glTranslatef(Boxes[i].tx, Boxes[i].ty, Boxes[i].tz);
+      glRotatef(Boxes[i].ra, Boxes[i].rx, Boxes[i].ry, Boxes[i].rz);
+      glScalef(Boxes[i].sx, Boxes[i].sy, Boxes[i].sz);
+      glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, Boxes[i].color);
+      glutSolidCube(1.0);
+      glPopMatrix();
+   }
+}
+
+
+static void
+Idle(void)
+{
+   double dt, t = glutGet(GLUT_ELAPSED_TIME) * 0.001;
+   if (PrevTime < 0.0)
+      PrevTime = t;
+   dt = t - PrevTime;
+   PrevTime = t;
+   Xrot += 16.0 * dt;
+   Yrot += 12.0 * dt;
+   Zrot += 8.0 * dt;
+   glutPostRedisplay();
+}
+
+
+static void
+Draw(void)
+{
+   if (Mode == FLICKER) {
+      glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+   }
+   else {
+      /* don't clear color buffer */
+      glClear(GL_DEPTH_BUFFER_BIT);
+      /* update Z buffer only */
+      glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
+   }
+
+   glPushMatrix();
+   glRotatef(Xrot, 1, 0, 0);
+   glRotatef(Yrot, 0, 1, 0);
+   glRotatef(Zrot, 0, 0, 1);
+
+   DrawBoxes();
+
+   if (Mode == NO_FLICKER) {
+      /* update color buffer now */
+      glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+      glDepthFunc(GL_EQUAL);
+      DrawBoxes();
+      glDepthFunc(GL_LESS);
+   }
+
+   glPopMatrix();
+
+   if (Mode == NO_FLICKER) {
+      /* "clear" the untouched pixels now.
+       * Note: if you comment-out this code you'll see something interesting.
+       */
+      GLfloat x = FarClip / NearClip;
+      GLfloat z = -(FarClip - ViewDist - 1.0);
+      glDisable(GL_LIGHTING);
+      glColor4fv(ClearColor);
+      glBegin(GL_POLYGON);
+      glVertex3f(-x, -x, z);
+      glVertex3f( x, -x, z);
+      glVertex3f( x,  x, z);
+      glVertex3f(-x,  x, z);
+      glEnd();
+      glEnable(GL_LIGHTING);
+   }
+
+   /* This is where you'd normally do SwapBuffers */
+   glFinish();
+}
+
+
+static void
+Reshape(int width, int height)
+{
+   glViewport(0, 0, width, height);
+   glMatrixMode(GL_PROJECTION);
+   glLoadIdentity();
+   glFrustum(-1.0, 1.0, -1.0, 1.0, NearClip, FarClip);
+   glMatrixMode(GL_MODELVIEW);
+   glLoadIdentity();
+   glTranslatef(0.0, 0.0, -ViewDist);
+}
+
+
+static void
+Key(unsigned char key, int x, int y)
+{
+   (void) x;
+   (void) y;
+   switch (key) {
+      case 'a':
+         Anim = !Anim;
+         if (Anim)
+            glutIdleFunc(Idle);
+         else
+            glutIdleFunc(NULL);
+         PrevTime = -1;
+         break;
+      case 'm':
+         Mode = !Mode;
+         break;
+      case 'b':
+         MakeBoxes();
+         break;
+      case 27:
+         exit(0);
+         break;
+   }
+   glutPostRedisplay();
+}
+
+
+static void
+SpecialKey(int key, int x, int y)
+{
+   const GLfloat step = 3.0;
+   (void) x;
+   (void) y;
+   switch (key) {
+      case GLUT_KEY_UP:
+         Xrot -= step;
+         break;
+      case GLUT_KEY_DOWN:
+         Xrot += step;
+         break;
+      case GLUT_KEY_LEFT:
+         Yrot -= step;
+         break;
+      case GLUT_KEY_RIGHT:
+         Yrot += step;
+         break;
+   }
+   glutPostRedisplay();
+}
+
+
+static void
+Init(void)
+{
+   glClearColor(ClearColor[0], ClearColor[1], ClearColor[2], ClearColor[3]);
+   glEnable(GL_DEPTH_TEST);
+   glEnable(GL_LIGHTING);
+   glEnable(GL_LIGHT0);
+   glEnable(GL_CULL_FACE);
+   glEnable(GL_NORMALIZE);
+   MakeBoxes();
+}
+
+
+static void
+Usage(void)
+{
+   printf("Keys:\n");
+   printf("  m       - toggle drawing mode (flicker vs. no flicker)\n");
+   printf("  a       - toggle animation\n");
+   printf("  b       - generate new boxes\n");
+   printf("  ARROWS  - rotate scene\n");
+   printf("  ESC     - exit\n");
+}
+
+
+int
+main(int argc, char *argv[])
+{
+   glutInit(&argc, argv);
+   glutInitWindowSize(800, 800);
+   glutInitDisplayMode(GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH);
+   glutCreateWindow(argv[0]);
+   glutReshapeFunc(Reshape);
+   glutKeyboardFunc(Key);
+   glutSpecialFunc(SpecialKey);
+   glutDisplayFunc(Draw);
+   if (Anim)
+      glutIdleFunc(Idle);
+   Init();
+   Usage();
+   glutMainLoop();
+   return 0;
+}

progs/demos/texdown-pool.c

@@ -38,8 +38,8 @@
 #include <GL/glut.h>
 
 
-static GLsizei MaxSize = 1024;
-static GLsizei TexWidth = 256, TexHeight = 256, TexBorder = 0;
+static GLsizei MaxSize = 2048;
+static GLsizei TexWidth = 1024, TexHeight = 1024, TexBorder = 0;
 static GLboolean ScaleAndBias = GL_FALSE;
 static GLboolean SubImage = GL_FALSE;
 static GLdouble DownloadRate = 0.0;  /* texels/sec */
@@ -47,6 +47,32 @@ static GLdouble DownloadRate = 0.0;  /* texels/sec */
 static GLuint Mode = 0;
 
 
+/* Try and avoid L2 cache effects by cycling through a small number of
+ * textures.
+ * 
+ * At the initial size of 1024x1024x4 == 4mbyte, say 8 textures will
+ * keep us out of most caches at 32mb total.
+ *
+ * This turns into a fairly interesting question of what exactly you
+ * expect to be in cache in normal usage, and what you think should be
+ * outside.  There's no rules for this, no reason to favour one usage
+ * over another except what the application you care about happens to
+ * resemble most closely.
+ *
+ * - Should the client texture image be in L2 cache?  Has it just been
+ *   generated or read from disk?
+ * - Does the application really use >1 texture, or is it constantly 
+ *   updating one image in-place?
+ *
+ * Different answers will favour different texture upload mechanisms.
+ * To upload an image that is purely outside of cache, a DMA-based
+ * upload will probably win, whereas for small, in-cache textures,
+ * copying looks good.
+ */
+#define NR_TEXOBJ 4
+static GLuint TexObj[NR_TEXOBJ];
+
+
 struct FormatRec {
    GLenum Format;
    GLenum Type;
@@ -116,25 +142,57 @@ TypeStr(GLenum type)
    }
 }
 
+/* On x86, there is a performance cliff for memcpy to texture memory
+ * for sources below 64 byte alignment.  We do our best with this in
+ * the driver, but it is better if the images are correctly aligned to
+ * start with:
+ */
+#define ALIGN (1<<12)
+
+static unsigned align(unsigned value, unsigned a)
+{
+   return (value + a - 1) & ~(a-1);
+}
+
+static int MIN2(int a, int b)
+{
+   return a < b ? a : b;
+}
 
 static void
 MeasureDownloadRate(void)
 {
    const int w = TexWidth + 2 * TexBorder;
    const int h = TexHeight + 2 * TexBorder;
-   const int bytes = w * h * BytesPerTexel(Format);
+   const int image_bytes = align(w * h * BytesPerTexel(Format), ALIGN);
+   const int bytes = image_bytes * NR_TEXOBJ;
+   GLubyte *orig_texImage, *orig_getImage;
    GLubyte *texImage, *getImage;
    GLdouble t0, t1, time;
    int count;
    int i;
+   int offset = 0;
+   GLdouble total = 0;		/* ints will tend to overflow */
 
-   texImage = (GLubyte *) malloc(bytes);
-   getImage = (GLubyte *) malloc(bytes);
-   if (!texImage || !getImage) {
+   printf("allocating %d bytes for %d %dx%d images\n",
+	  bytes, NR_TEXOBJ, w, h);
+
+   orig_texImage = (GLubyte *) malloc(bytes + ALIGN);
+   orig_getImage = (GLubyte *) malloc(image_bytes + ALIGN);
+   if (!orig_texImage || !orig_getImage) {
       DownloadRate = 0.0;
       return;
    }
 
+   printf("alloc %p %p\n", orig_texImage, orig_getImage);
+
+   texImage = (GLubyte *)align((unsigned)orig_texImage, ALIGN);
+   getImage = (GLubyte *)align((unsigned)orig_getImage, ALIGN);   
+
+   for (i = 1; !(((unsigned)texImage) & i); i<<=1)
+      ;
+   printf("texture image alignment: %d bytes (%p)\n", i, texImage);
+      
    for (i = 0; i < bytes; i++) {
       texImage[i] = i & 0xff;
    }
@@ -166,51 +224,80 @@ MeasureDownloadRate(void)
    count = 0;
    t0 = glutGet(GLUT_ELAPSED_TIME) * 0.001;
    do {
+      int img = count%NR_TEXOBJ;
+      GLubyte *img_ptr = texImage + img * image_bytes;
+
+      glBindTexture(GL_TEXTURE_2D, TexObj[img]);
+
       if (SubImage && count > 0) {
-         glTexSubImage2D(GL_TEXTURE_2D, 0, -TexBorder, -TexBorder, w, h,
+	 /* Only update a portion of the image each iteration.  This
+	  * is presumably why you'd want to use texsubimage, otherwise
+	  * you may as well just call teximage again.
+	  *
+	  * A bigger question is whether to use a pointer that moves
+	  * with each call, ie does the incoming data come from L2
+	  * cache under normal circumstances, or is it pulled from
+	  * uncached memory?  
+	  * 
+	  * There's a good argument to say L2 cache, ie you'd expect
+	  * the data to have been recently generated.  It's possible
+	  * that it could have come from a file read, which may or may
+	  * not have gone through the cpu.
+	  */
+         glTexSubImage2D(GL_TEXTURE_2D, 0, 
+			 -TexBorder, 
+			 -TexBorder + offset * h/8, 
+			 w, 
+			 h/8,
                          FormatTable[Format].Format,
-                         FormatTable[Format].Type, texImage);
+                         FormatTable[Format].Type, 
+#if 1
+			 texImage /* likely in L2$ */
+#else
+			 img_ptr + offset * bytes/8 /* unlikely in L2$ */
+#endif
+	    );
+	 offset += 1;
+	 offset %= 8;
+	 total += w * h / 8;
       }
       else {
          glTexImage2D(GL_TEXTURE_2D, 0,
                       FormatTable[Format].IntFormat, w, h, TexBorder,
                       FormatTable[Format].Format,
-                      FormatTable[Format].Type, texImage);
+                      FormatTable[Format].Type, 
+		      img_ptr);
+	 total += w*h;
       }
 
+#if 1
+      /* Render a texture, but not necessarily the one just uploaded.  
+       */
+/*       glBindTexture(GL_TEXTURE_2D, TexObj[(img + NR_TEXOBJ/2)%NR_TEXOBJ]); */
+
       /* draw a tiny polygon to force texture into texram */
       glBegin(GL_TRIANGLES);
       glTexCoord2f(0, 0);     glVertex2f(1, 1);
       glTexCoord2f(1, 0);     glVertex2f(3, 1);
       glTexCoord2f(0.5, 1);   glVertex2f(2, 3);
       glEnd();
+/*       glFinish(); */
+#endif
 
       t1 = glutGet(GLUT_ELAPSED_TIME) * 0.001;
       time = t1 - t0;
       count++;
+/*       printf("total %f count %d\n", total, count); */
    } while (time < 3.0);
 
    glDisable(GL_TEXTURE_2D);
 
-   printf("w*h=%d  count=%d  time=%f\n", w*h, count, time);
-   DownloadRate = w * h * count / time;
+   printf("total texels=%f  time=%f\n", total, time);
+   DownloadRate = total / time;
 
-#if 0
-   if (!ScaleAndBias) {
-      /* verify texture readback */
-      glGetTexImage(GL_TEXTURE_2D, 0,
-                    FormatTable[Format].Format,
-                    FormatTable[Format].Type, getImage);
-      for (i = 0; i < w * h; i++) {
-         if (texImage[i] != getImage[i]) {
-            printf("[%d] %d != %d\n", i, texImage[i], getImage[i]);
-         }
-      }
-   }
-#endif
 
-   free(texImage);
-   free(getImage);
+   free(orig_texImage); 
+   free(orig_getImage); 
 
    {
       GLint err = glGetError();

progs/demos/texobj.c

@@ -92,7 +92,7 @@ static void idle( void )
    dt = t - t0;
    t0 = t;
    Angle += 120.0*dt;
-   glutPostRedisplay();
+/*    glutPostRedisplay(); */
 }
 
 

progs/egl/demo2.c

@@ -152,7 +152,7 @@ main(int argc, char *argv[])
       return 0;
    }
    
-   eglShowSurfaceMESA(d, screen, screen_surf, mode);
+   eglShowScreenSurfaceMESA(d, screen, screen_surf, mode);
 
    b = eglMakeCurrent(d, screen_surf, screen_surf, ctx);
    if (!b) {

progs/egl/demo3.c

@@ -603,7 +603,7 @@ main(int argc, char *argv[])
       return 0;
    }
 
-   eglShowSurfaceMESA(d, screen, screen_surf, mode);
+   eglShowScreenSurfaceMESA(d, screen, screen_surf, mode);
 
    b = eglMakeCurrent(d, screen_surf, screen_surf, ctx);
    if (!b) {

progs/egl/eglgears.c

@@ -35,6 +35,8 @@
 #include <GLES/egl.h>
 #include <assert.h>
 
+#define MAX_CONFIGS 10
+#define MAX_MODES 100
 
 #define BENCHMARK
 
@@ -87,9 +89,11 @@ static GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 0.0;
 static GLint gear1, gear2, gear3;
 static GLfloat angle = 0.0;
 
-//static GLfloat eyesep = 5.0;		/* Eye separation. */
-//static GLfloat fix_point = 40.0;	/* Fixation point distance.  */
-//static GLfloat left, right, asp;	/* Stereo frustum params.  */
+#if 0
+static GLfloat eyesep = 5.0;		/* Eye separation. */
+static GLfloat fix_point = 40.0;	/* Fixation point distance.  */
+static GLfloat left, right, asp;	/* Stereo frustum params.  */
+#endif
 
 
 /*
@@ -339,7 +343,6 @@ static void run_gears(EGLDisplay dpy, EGLSurface surf, int ttr)
 		
 		draw();
 		
-		// DBR : Swap the Buffers
 		eglSwapBuffers(dpy, surf);
 	
 		
@@ -359,21 +362,18 @@ main(int argc, char *argv[])
 	int maj, min;
 	EGLContext ctx;
 	EGLSurface screen_surf;
-	EGLConfig configs[10];
+	EGLConfig configs[MAX_CONFIGS];
 	EGLint numConfigs, i;
 	EGLBoolean b;
-	
-	const EGLint screenAttribs[] = {
-		EGL_WIDTH, 1024,
-		EGL_HEIGHT, 768,
-		EGL_NONE
-	};
-	
-	EGLModeMESA mode;
+	EGLDisplay d;
+	EGLint screenAttribs[10];
+	EGLModeMESA mode[MAX_MODES];
 	EGLScreenMESA screen;
-	EGLint count;	
+	EGLint count, chosenMode;
 	GLboolean printInfo = GL_FALSE;
+	EGLint width = 0, height = 0;
 	
+        /* parse cmd line args */
 	for (i = 1; i < argc; i++)
 	{
 		if (strcmp(argv[i], "-info") == 0)
@@ -384,42 +384,73 @@ main(int argc, char *argv[])
 			printf("Warning: unknown parameter: %s\n", argv[i]);
 	}
 	
-	// DBR : Create EGL context/surface etc
-	EGLDisplay d = eglGetDisplay(":0");
+	/* DBR : Create EGL context/surface etc */
+        d = eglGetDisplay(":0");
 	assert(d);
 
 	if (!eglInitialize(d, &maj, &min)) {
-		printf("demo: eglInitialize failed\n");
+		printf("eglgears: eglInitialize failed\n");
 		exit(1);
 	}
 	
-	printf("EGL version = %d.%d\n", maj, min);
-	printf("EGL_VENDOR = %s\n", eglQueryString(d, EGL_VENDOR));
+	printf("eglgears: EGL version = %d.%d\n", maj, min);
+	printf("eglgears: EGL_VENDOR = %s\n", eglQueryString(d, EGL_VENDOR));
 	
-	eglGetConfigs(d, configs, 10, &numConfigs);
+        /* XXX use ChooseConfig */
+	eglGetConfigs(d, configs, MAX_CONFIGS, &numConfigs);
 	eglGetScreensMESA(d, &screen, 1, &count);
-	eglGetModesMESA(d, screen, &mode, 1, &count);
+
+	if (!eglGetModesMESA(d, screen, mode, MAX_MODES, &count) || count == 0) {
+		printf("eglgears: eglGetModesMESA failed!\n");
+		return 0;
+	}
+
+        /* Print list of modes, and find the one to use */
+	printf("eglgears: Found %d modes:\n", count);
+	for (i = 0; i < count; i++) {
+		EGLint w, h;
+		eglGetModeAttribMESA(d, mode[i], EGL_WIDTH, &w);
+		eglGetModeAttribMESA(d, mode[i], EGL_HEIGHT, &h);
+		printf("%3d: %d x %d\n", i, w, h);
+		if (w > width && h > height && w <= 1280 && h <= 1024) {
+			width = w;
+			height = h;
+                        chosenMode = i;
+		}
+	}
+	printf("eglgears: Using screen mode/size %d: %d x %d\n", chosenMode, width, height);
 
 	ctx = eglCreateContext(d, configs[0], EGL_NO_CONTEXT, NULL);
 	if (ctx == EGL_NO_CONTEXT) {
-		printf("failed to create context\n");
+		printf("eglgears: failed to create context\n");
 		return 0;
 	}
 	
+	/* build up screenAttribs array */
+	i = 0;
+	screenAttribs[i++] = EGL_WIDTH;
+	screenAttribs[i++] = width;
+	screenAttribs[i++] = EGL_HEIGHT;
+	screenAttribs[i++] = height;
+	screenAttribs[i++] = EGL_NONE;
+
 	screen_surf = eglCreateScreenSurfaceMESA(d, configs[0], screenAttribs);
 	if (screen_surf == EGL_NO_SURFACE) {
-		printf("failed to create screen surface\n");
+		printf("eglgears: failed to create screen surface\n");
 		return 0;
 	}
 	
-	eglShowSurfaceMESA(d, screen, screen_surf, mode);
-	
+	b = eglShowScreenSurfaceMESA(d, screen, screen_surf, mode[chosenMode]);
+	if (!b) {
+		printf("eglgears: show surface failed\n");
+		return 0;
+	}
+
 	b = eglMakeCurrent(d, screen_surf, screen_surf, ctx);
 	if (!b) {
-		printf("make current failed\n");
+		printf("eglgears: make current failed\n");
 		return 0;
 	}
-	// DBR
 	
 	if (printInfo)
 	{
@@ -429,20 +460,16 @@ main(int argc, char *argv[])
 		printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
 	}
 	
-	init();			// Initialise the GL visual
-	reshape(1024,768);
+	init();
+	reshape(width, height);
 
-   glDrawBuffer( GL_BACK );
+        glDrawBuffer( GL_BACK );
 
-	// DBR : Run the simulation
 	run_gears(d, screen_surf, 5.0);
 	
-	
-	// DBR : Destroy EGL context/surface etc
 	eglDestroySurface(d, screen_surf);
 	eglDestroyContext(d, ctx);
 	eglTerminate(d);
-	// DBR
 	
 	return 0;
 }

progs/egl/eglinfo.c

@@ -48,9 +48,9 @@ PrintConfigs(EGLDisplay d)
    eglGetConfigs(d, configs, MAX_CONFIGS, &numConfigs);
 
    printf("Configurations:\n");
-   printf("     bf lv d st colorbuffer dp st   supported \n");
+   printf("     bf lv d st colorbuffer dp st   supported\n");
    printf("  id sz  l b ro  r  g  b  a th cl   surfaces  \n");
-   printf("----------------------------------------------\n");
+   printf("---------------------------------------------------\n");
    for (i = 0; i < numConfigs; i++) {
       EGLint id, size, level;
       EGLint red, green, blue, alpha;
@@ -77,6 +77,10 @@ PrintConfigs(EGLDisplay d)
          strcat(surfString, "pb,");
       if (surfaces & EGL_PIXMAP_BIT)
          strcat(surfString, "pix,");
+#ifdef EGL_MESA_screen_surface
+      if (surfaces & EGL_SCREEN_BIT_MESA)
+         strcat(surfString, "scrn,");
+#endif
       if (strlen(surfString) > 0)
          surfString[strlen(surfString) - 1] = 0;
 
@@ -136,7 +140,7 @@ main(int argc, char *argv[])
 {
    int maj, min;
    /*EGLDisplay d = eglGetDisplay(EGL_DEFAULT_DISPLAY);*/
-   EGLDisplay d = eglGetDisplay("!r200_dri");
+   EGLDisplay d = eglGetDisplay(":0");
 
    if (!eglInitialize(d, &maj, &min)) {
       printf("eglinfo: eglInitialize failed\n");

progs/fp/Makefile

@@ -0,0 +1,127 @@
+# progs/tests/Makefile
+
+
+# These programs aren't intended to be included with the normal distro.
+# They're not too interesting but they're good for testing.
+
+TOP = ../..
+include $(TOP)/configs/current
+
+
+LIBS = $(APP_LIB_DEPS)
+
+SOURCES = \
+	tri-abs.c \
+	tri-add.c \
+	tri-cmp.c \
+	tri-cos.c \
+	tri-dp3.c \
+	tri-dp4.c \
+	tri-dph.c \
+	tri-dst.c \
+	tri-ex2.c \
+	tri-flr.c \
+	tri-frc.c \
+	tri-kil.c \
+	tri-lg2.c \
+	tri-lit.c \
+	tri-lrp.c \
+	tri-mad.c \
+	tri-max.c \
+	tri-min.c \
+	tri-mov.c \
+	tri-mul.c \
+	tri-pow.c \
+	tri-param.c \
+	tri-rcp.c \
+	tri-rsq.c \
+	tri-scs.c \
+	tri-sge.c \
+	tri-sge2.c \
+	tri-sin.c \
+	tri-slt.c \
+	tri-sub.c \
+	tri-swz.c \
+	tri-swz2.c \
+	tri-tex.c \
+	tri-xpd.c \
+	tri-position.c \
+	tri-depth.c \
+	tri-depth2.c \
+	tri-depthwrite.c \
+	tri-depthwrite2.c \
+
+NOTDONE=\
+	tri-txb.c \
+	tri-txp.c \
+	tri-depthwrite.c \
+	tri-fogoption.c 
+
+
+PROGS = $(SOURCES:%.c=%)
+
+INCLUDES = -I. -I$(TOP)/include -I../samples
+
+UTIL_FILES = readtex.h readtex.c
+
+
+##### RULES #####
+
+.SUFFIXES:
+.SUFFIXES: .c
+
+.c:
+	$(CC) $(INCLUDES) $(CFLAGS) $< $(LIBS) -o $@
+
+.c.o:
+	$(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@
+
+.S.o:
+	$(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES)  $< -o $@
+
+
+##### TARGETS #####
+
+default: $(UTIL_FILES) $(PROGS)
+
+clean:
+	rm -f $(PROGS)
+	rm -f *.o
+	rm -f getproclist.h
+
+
+# auto code generation
+getprocaddress: getprocaddress.c getproclist.h
+
+getproclist.h: $(TOP)/src/mesa/glapi/gl_API.xml getprocaddress.c getprocaddress.py
+	python getprocaddress.py > getproclist.h
+
+
+texrect: texrect.o readtex.o
+	$(CC) texrect.o readtex.o $(LIBS) -o $@
+
+texrect.o: texrect.c readtex.h
+	$(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@
+
+invert: invert.o readtex.o
+	$(CC) invert.o readtex.o $(LIBS) -o $@
+
+invert.o: invert.c readtex.h
+	$(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@
+
+readtex.o: readtex.c
+	$(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@
+
+
+readtex.h: $(TOP)/progs/util/readtex.h
+	ln -s $(TOP)/progs/util/readtex.h .
+
+readtex.c: $(TOP)/progs/util/readtex.c
+	ln -s $(TOP)/progs/util/readtex.c .
+
+
+
+
+# Emacs tags
+tags:
+	etags `find . -name \*.[ch]` `find ../include`

progs/fp/tri-abs.c

@@ -0,0 +1,107 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0;\n"
+      "SUB R0, {0.5}.x, fragment.color; \n"
+      "ABS result.color, R0; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+}
+
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-add.c

@@ -0,0 +1,110 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0;\n"
+      "ADD R0, fragment.color, fragment.color; \n"
+      "ADD result.color, R0, R0; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-cmp.c

@@ -0,0 +1,110 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0;\n"
+      "SUB R0, {0.5}.x, fragment.color; \n"
+      "CMP result.color, R0, fragment.color, {0.0}.x; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-cos.c

@@ -0,0 +1,113 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0; \n"
+      "MUL R0, fragment.color, {3.14}.x; \n"
+      "COS result.color.x, R0.x; \n"
+      "COS result.color.y, R0.y; \n"
+      "COS result.color.z, R0.z; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-depth.c

@@ -0,0 +1,111 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   /* scale of 10.0 gives me a visible result on nv hardware.
+    */
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "MUL result.color, fragment.position.z, {10.0}.x; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -40.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -40.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -25.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-depth2.c

@@ -0,0 +1,116 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   /* scale of 10.0 gives me a visible result on nv hardware.
+    */
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0;\n"
+      "MUL R0, fragment.position.z, {10.0}.x;\n"
+      "MOV result.color, R0; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
+   glEnable(GL_DEPTH_TEST);
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1);
+	glVertex3f( 0.9, -0.9, -30.0);
+	glVertex3f( 0.9,  0.9, -30.0);
+	glVertex3f(-0.9,  0.0, -30.0);
+   glColor3f(0,1,0);
+	glVertex3f(-0.9, -0.9, -40.0);
+	glVertex3f(-0.9,  0.9, -40.0);
+	glVertex3f( 0.9,  0.0, -25.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB | GLUT_DEPTH;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-depthwrite.c

@@ -0,0 +1,107 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+static void Init(void)
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "MUL result.depth.z, fragment.color.z, {.1}.x; \n"
+      "MOV result.color.xy, fragment.color; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
+	glEnable(GL_DEPTH_TEST);
+
+
+    glBegin(GL_TRIANGLES);
+    glColor4f(.8,0,.5,0);
+	glVertex3f( 0.9, -0.9, -30.0);
+	glVertex3f( 0.9,  0.9, -30.0);
+	glVertex3f(-0.9,  0.0, -30.0);
+
+    glColor4f(0,.8,.7,0);
+	glVertex3f(-0.9, -0.9, -40.0);
+    glColor4f(0,.8,.7,0);
+	glVertex3f(-0.9,  0.9, -40.0);
+    glColor4f(0,.8,.3,0);
+	glVertex3f( 0.9,  0.0, -40.0);
+    glEnd();
+
+    glFlush();
+}
+
+
+int main(int argc, char **argv)
+{
+    glutInit(&argc, argv);
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300);
+
+    glutInitDisplayMode(GLUT_DEPTH | GLUT_RGB | GLUT_SINGLE);
+
+    if (glutCreateWindow("Depth Test") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-depthwrite2.c

@@ -0,0 +1,107 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+static void Init(void)
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "MUL result.depth.z, fragment.color.z, {.1}.x; \n"
+      "MOV result.color, fragment.color.z; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
+	glEnable(GL_DEPTH_TEST);
+
+
+    glBegin(GL_TRIANGLES);
+    glColor4f(.8,0,.5,0);
+	glVertex3f( 0.9, -0.9, -30.0);
+	glVertex3f( 0.9,  0.9, -30.0);
+	glVertex3f(-0.9,  0.0, -30.0);
+
+    glColor4f(0,.8,.7,0);
+	glVertex3f(-0.9, -0.9, -40.0);
+    glColor4f(0,.8,.7,0);
+	glVertex3f(-0.9,  0.9, -40.0);
+    glColor4f(0,.8,.3,0);
+	glVertex3f( 0.9,  0.0, -40.0);
+    glEnd();
+
+    glFlush();
+}
+
+
+int main(int argc, char **argv)
+{
+    glutInit(&argc, argv);
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300);
+
+    glutInitDisplayMode(GLUT_DEPTH | GLUT_RGB | GLUT_SINGLE);
+
+    if (glutCreateWindow("Depth Test") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-dp3.c

@@ -0,0 +1,109 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0;\n"
+      "DP3 result.color, fragment.color, fragment.color; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-dp4.c

@@ -0,0 +1,109 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0;\n"
+      "DP4 result.color, fragment.color.xxxx, fragment.color; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-dph.c

@@ -0,0 +1,109 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0;\n"
+      "DPH result.color, fragment.color, fragment.color.xyzx; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-dst.c

@@ -0,0 +1,109 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "DST result.color, fragment.color, fragment.color; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-ex2.c

@@ -0,0 +1,110 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0;\n"
+      "EX2 R0, fragment.color.x; \n"
+      "SUB result.color, R0, {1.0}.x; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-flr.c

@@ -0,0 +1,110 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0;\n"
+      "ADD R0, fragment.color, {0.5}.x; \n"
+      "FLR result.color,  R0; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-fp.c

@@ -0,0 +1,109 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "SLT result.color, {0.5}.x, fragment.color; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-frc.c

@@ -0,0 +1,111 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0; \n"
+      "MUL R0, fragment.color, {3.0}.x; \n"
+      "FRC result.color, R0; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-inv.c

@@ -0,0 +1,109 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0;\n"
+      "INV result.color, fragment.color; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-kil.c

@@ -0,0 +1,111 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0;\n"
+      "SUB R0, fragment.color, {0.5,0,0,0}; \n"
+      "KIL R0;"
+      "MOV result.color, R0;"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-lg2.c

@@ -0,0 +1,110 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0;\n"
+      "MUL R0, fragment.color, {4.0}.x; \n"
+      "LG2 result.color, R0.x; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-lit.c

@@ -0,0 +1,111 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0;\n"
+      "SUB R0, {0.5}.x, fragment.color; \n"
+      "LIT result.color, R0; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-lrp.c

@@ -0,0 +1,109 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0, R1;\n"
+      "LRP result.color, fragment.color.z, {1,0,0,1}, {0,1,0,1}; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-mad.c

@@ -0,0 +1,109 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0, R1;\n"
+      "MAD result.color, fragment.color.z, {1,0,0,1}, fragment.color; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-max.c

@@ -0,0 +1,109 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "MAX result.color, {0.5}.x, fragment.color; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-min.c

@@ -0,0 +1,109 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "MIN result.color, {0.5}.x, fragment.color; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-mov.c

@@ -0,0 +1,102 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "MOV result.color, fragment.color; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB | GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-mul.c

@@ -0,0 +1,109 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "MUL result.color, fragment.color, fragment.color; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-param.c

@@ -0,0 +1,114 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "MOV result.color, program.local[32]; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+   glProgramLocalParameter4fARB(GL_FRAGMENT_PROGRAM_ARB, 32, 0.25, .5, 0.25, 1);
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.0, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glProgramLocalParameter4fARB(GL_FRAGMENT_PROGRAM_ARB, 32, 0.25, 0, 0.25, 1);
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9,  0.0, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB | GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-position.c

@@ -0,0 +1,109 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "MUL result.color, fragment.position, {.005}.x; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-pow.c

@@ -0,0 +1,109 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0;\n"
+      "POW result.color,  fragment.color.x, fragment.color.y; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-rcp.c

@@ -0,0 +1,110 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0;\n"
+      "ADD R0, fragment.color.x, fragment.color.x; \n"
+      "RCP result.color, R0.x; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-rsq.c

@@ -0,0 +1,110 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0;\n"
+      "MUL R0, fragment.color, {3.0}.x; \n"
+      "RSQ result.color, R0.x; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-scs.c

@@ -0,0 +1,111 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0; \n"
+      "MUL R0, fragment.color, {3.14}.x; \n"
+      "SCS result.color, R0.x; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-sge.c

@@ -0,0 +1,109 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "SGE result.color, {0.5}.x, fragment.color; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-sge2.c

@@ -0,0 +1,114 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0;\n"
+      "TEMP R1;\n"
+      "SGE R0, fragment.color, fragment.color.yzxw; \n"
+      "SGE R1, fragment.color, fragment.color.zxyw; \n"
+      "MUL R0, R0, R1; \n"
+      "MUL result.color, R0, fragment.color; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-sin.c

@@ -0,0 +1,114 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "TEMP R0; \n"
+      "MUL R0, fragment.color, {3.14}.x; \n"
+      "MOV result.color, {0.0}.x; \n"
+      "SIN result.color.x, R0.x; \n"
+      "SIN result.color.y, R0.y; \n"
+      "SIN result.color.z, R0.z; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-slt.c

@@ -0,0 +1,109 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "SLT result.color, {0.5}.x, fragment.color; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-sub.c

@@ -0,0 +1,109 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "SUB result.color, fragment.color.yzxw, fragment.color; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}

progs/fp/tri-swz.c

@@ -0,0 +1,109 @@
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+#include "GL/gl.h"
+
+
+
+static void Init( void )
+{
+   static const char *modulate2D =
+      "!!ARBfp1.0\n"
+      "SWZ result.color, fragment.color, 1,x,y,z; \n"
+      "END"
+      ;
+   GLuint modulateProg;
+
+   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
+      printf("Error: GL_ARB_fragment_program not supported!\n");
+      exit(1);
+   }
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+   /* Setup the fragment program */
+   glGenProgramsARB(1, &modulateProg);
+   glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, modulateProg);
+   glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+                        strlen(modulate2D), (const GLubyte *)modulate2D);
+
+   printf("glGetError = 0x%x\n", (int) glGetError());
+   printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
+          (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+
+   glEnable(GL_FRAGMENT_PROGRAM_ARB);
+
+   glClearColor(.3, .3, .3, 0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,1); 
+   glVertex3f( 0.9, -0.9, -30.0);
+   glColor3f(1,0,0); 
+   glVertex3f( 0.9,  0.9, -30.0);
+   glColor3f(0,1,0); 
+   glVertex3f(-0.9,  0.0, -30.0);
+   glEnd();
+
+   glFlush();
+
+
+}
+
+
+int main(int argc, char **argv)
+{
+    GLenum type;
+
+    glutInit(&argc, argv);
+
+
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB;
+    type |= GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}