Re: [Mesa3d-dev] OSMesaCreateContext missing in XFree86 4.0

[Brian P. <br...@pr...>]

Howard wrote:
> 
> Are OSMesaCreateContext, OSMesaDestroyContext and other OSMesa functions
> intentionally excluded from the Mesa version included with XFree86 4.0?
> The offscreen functions in general appear to be missing from XFree86 4.0
> Mesa. Was this a design decision, or is this 4.0 release incomplete?

OS/Mesa is not in XFree86 4.0 in any form.  However, this is something
I was thinking about yesterday and I think it would be possible to add
this feature to XFree86's libGL.  Basically, I'd provide a new library,
libOSMesa.so which you'd have to link with.  It would patch into the
libGL.so dispatcher and work like stand-alone Mesa.


> Also, is there any known reason why glXChooseVisual in XFree86 4.0 Mesa
> would not find an XPixmap with RGB, depth and stencil?
                    ^^^^^^^
You mean a GLXVisual, I think.

Use glxinfo to list your GLX visuals.  You might not have a stencil
buffer, I'd guess.


> We are on a Linux x86 libc6 based system, using a GForce 256 AGP card.

Using NVIDIA or the UtathGLX drivers?

In either case, your libGL doesn't have the OS/Mesa functionality.

-Brian