Re: [Mesa3d-users] Software shaders with Mesa and Xorg

[Jeremy W. S. <jw...@cs...>]

Thanks for the input.  I have things working now.  As it turns out, I
tried this first, before ever looking into Xorg, and it didn't work.  What
I didn't notice was that the install rule was producing an error and not
making the symlink from libGL.so.1.5 to libGL.so, so I was still linking
against the old library.  I fixed this manually and now things are working
great.  I'll provide a patch in the next day or so.

Jeremy

On Tue, 2 Nov 2004, Brian Paul wrote:

> Jeremy W. Sheaffer wrote:
> > I'm working under FreeBSD on a machine with an ATI 9600 mobile, and need
> > to be able to run OpenGL programs using, among others, the
> > ARB_vertex_program, ARB_fragment_program, and ARB_occlusion_query
> > extensions.  These are all exported by Mesa-6.2.  Xorg, as shipped with
> > FreeBSD uses Mesa-5.1 as the renderer, so I upgraded from source to Xorg
> > 6.8.1, which is current stable.  This uses Mesa-6.1, which *should* give
> > me the functionality I need--but it doesn't.  glxinfo tells me my renderer
> > version is OpenGL '1.2 (1.5 Mesa 6.1)'.  So I manually replaced the Mesa
> > subtree in Xorg with Mesa-6.2, hoping that might make a difference.  I
> > also went through the Mesa source and made certain that all conditionally
> > compiled code that involves the extensions I need are built, and then
> > rebuilt Xorg.  Still no dice.  Version string is '1.2 (1.5 Mesa 6.2)', and
> > the extensions I need are not being exported.  I don't know if this is a
> > Mesa problem or an Xorg problem, but I'm trying here first.  Does anyone
> > have any idea what I might be missing?  I realize, of course, that the
> > drivers aren't there to really support my card (FYI I'm using the radeon
> > driver, but I've also tried various others), but I could care less if I
> > get acceleration! Mesa exports the functionality in software, and I need
> > to be able to use it.  Any suggestions?
>
> The problem is libGL.so and the server-side GLX protocol dispatcher
> don't currently support the ARB extensions you mention above.
>
> The simplest solution would be for you to download/compile Mesa-6.2.
> This will result in a "stand-alone" libGL.so library that renders with
> Xlib, instead of going over the GLX protocol to the X server.
>
> -Brian
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by:
> Sybase ASE Linux Express Edition - download now for FREE
> LinuxWorld Reader's Choice Award Winner for best database on Linux.
> http://ads.osdn.com/?ad_id=5588&alloc_id=12065&op=click
> _______________________________________________
> Mesa3d-users mailing list
> Mes...@li...
> https://lists.sourceforge.net/lists/listinfo/mesa3d-users
>

-- 
Jeremy W. Sheaffer
jw...@cs...
http://cs.virginia.edu/~jws9c/



             /*********************************************
             * The Moving Finger writes; and having writ, *
             *    Moves on: nor all thy piety nor wit     *
             *  Shall lure it back to cancel half a line  *
             *  Nor all thy tears wash out a word of it.  *
             *                                            *
             *                       -Omar Khayyam        *
             *********************************************/