Bug 2909

Summary:	glx.h and glxext.h broken for GLX 1.3 and 1.4 function pointers
Product:	Mesa	Reporter:	Ian Romanick <idr>
Component:	Other	Assignee:	mesa-dev
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	high
Version:	git
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Ian Romanick 2005-04-05 14:12:55 UTC

I finally decided to track down something that has bothered me for years
(witness the comments in glxgears_fbconfig.c).  The function pointer typedefs
(the PFNGLX*PROC typedefs) for core GLX 1.3 and 1.4 in GL/glxext.h are never
available.  They exist in the file, but application source code can never access it.

I tracked this down to the fact that GLX_VERSION_1_3 and GLX_VERSION_1_4 are
defined in GL/glx.h.  This causes all of the function prototypes, defines, and
typedefs in GL/glxext.h to be skipped.  Since we'd like code to be
source-portable from other GLX systems, this seems wrong.

Just removing the #defines from GL/glx.h replaced this problem with other
compile-time problems.

I believe the correct solution is to follow the model of GL/gl.h and GL/glext.h.
 That is, don't put any "new" features in GL/glx.h that are in GL/glxext.h.  I
can make this change if people think this is the right way to go.

Comment 1 Brian Paul 2005-04-06 15:45:08 UTC

Feel free to fix this up.  Another issue is Mesa's glx.h is different from the
X/DRI glx.h (the later comes from the SGI GLX project).  We should try to unify
those too.

Comment 2 Ian Romanick 2009-04-07 18:45:07 UTC

This was fixed eons ago by putting the function pointer typedefs in glx.h.

Comment 3 Adam Jackson 2009-08-24 12:23:08 UTC

Mass version move, cvs -> git

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