Re: [texture_from_pixmap.c] glXBindTexImageEXT undefined

[Brian P. <bri...@tu...>]

Dieter Nützel wrote:
> Am Montag, 28. Mai 2007 schrieb Brian Paul:
>> Dieter Nützel wrote:
>>> progs/xdemos> time nice +19 make
>>> gcc -I../../include -Wall -Wmissing-prototypes -std=c99 -ffast-math -O
>>> -march=athlon-mp -fomit-frame-pointer -m3dnow -msse -mmmx
>>> -mfpmath=sse,387  -m32 -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L
>>> -D_SVID_SOURCE -D_BSD_SOURCE -D_GNU_SOURCE -DPTHREADS
>>> -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER -DGLX_DIRECT_RENDERING
>>> -DGLX_INDIRECT_RENDERING -DHAVE_ALIAS -DHAVE_POSIX_MEMALIGN -DUSE_X86_ASM
>>> -DUSE_MMX_ASM -DUSE_3DNOW_ASM -DUSE_SSE_ASM texture_from_pixmap.c
>>> -L../../lib -lglut -lGLU -lGL -lm -o
>>> texture_from_pixmap
>>> /tmp/cc089W35.o: In function `main':
>>> texture_from_pixmap.c:(.text+0x811): undefined reference to
>>> `glXBindTexImageEXT'
>>> collect2: ld returned 1 exit status
>>> make: *** [texture_from_pixmap] Fehler 1
>>>
>>> My glx.h has it.
>>> Latest glxproto.h CVS not.
>> As long as you've got the latest Mesa sources,
> 
> I have. Latest Mesa git 7.1, DRM git (installed).
> 
> OpenGL vendor string: DRI R300 Project
> OpenGL renderer string: Mesa DRI R300 20060815 AGP 4x x86/MMX+/3DNow!+/SSE TCL
> OpenGL version string: 1.3 Mesa 7.1
> 
>> and everything compiled 
>> OK,
> 
> It does and works, so far.
> 
>> this shouldn't be happening. 
> 
> But...;-)
> 
>> You could run 'nm' on libGL.so and see that glXBindTexImageEXT is defined.
> 
> progs/xdemos> time nice +19 make -j10
> gcc -I../../include -Wall -Wmissing-prototypes -std=c99 -ffast-math -O -march=athlon-mp -fomit-frame-pointer -m3dnow -msse -mmmx -mfpmath=sse,387  -m32 -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURCE -D_GNU_SOURCE -DPTHREADS -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER -DGLX_DIRECT_RENDERING -DGLX_INDIRECT_RENDERING -DHAVE_ALIAS -DHAVE_POSIX_MEMALIGN -DUSE_X86_ASM -DUSE_MMX_ASM -DUSE_3DNOW_ASM -DUSE_SSE_ASM 
> texture_from_pixmap.c -L../../lib -lglut -lGLU -lGL -lm -o 
> texture_from_pixmap
> /tmp/ccA6P9wF.o: In function `main':
> texture_from_pixmap.c:(.text+0x811): undefined reference to 
> `glXBindTexImageEXT'
> collect2: ld returned 1 exit status
> make: *** [texture_from_pixmap] Fehler 1
> 0.376u 0.048s 0:00.43 95.3%     0+0k 0+0io 0pf+0w
> 
> progs/xdemos> nm /opt/mesa/lib/libGL.so.1.2 | grep glXBindTexImageEXT
> 0001b0a4 t __glXBindTexImageEXT
> 
> progs/xdemos> nm /usr/lib/libGL.so.1.2 | grep glXBindTexImageEXT
> 0001b0a4 t __glXBindTexImageEXT

I only added GLX_EXT_texture_from_pixmap to the xlib driver, as someone 
requested.  I didn't do anything on the DRI side.

I'll update the test program to check for the extension like it should.


> But what is this?
> If I set 'setenv LIBGL_ALWAYS_INDIRECT' (tcsh) I get:
> 
> OpenGL vendor string: Tungsten Graphics, Inc.
> OpenGL renderer string: Mesa DRI R300 20060815 AGP 4x x86/MMX+/3DNow!+/SSE TCL
> OpenGL version string: 1.3 Mesa 6.5.1
> 
> Shouldn't it OpenGL 2.1 like ~mesa/docs/relnotes-7.1.html stated?

The OpenGL version depends on the driver.  Core Mesa and the Xlib driver 
support 2.1, but the DRI drivers don't yet.

-Brina