Re: [Mesa3d-dev] radeon r200 TCL in xorg-video-ati 6.10

[Roland S. <sr...@vm...>]

On 26.04.2009 17:59, martin krastev wrote:
> hello.
> 
> I have been experiencing difficulties trying to get fixed-pipeline TCL
> and ARBVP1 hardware support for an ATI 9250 PCI board (chip id 0x5960)
> under Xorg 1.5.3 and FOSS ATI DRI edge 6.10, running on a ppc station.
> Is there such a know issue or does my problem present an isolated
> case?
> 
> for the record, glxinfo -i reports nothing wrong on the subject:
> 
> $ glxinfo -l
> <snip>
> OpenGL vendor string: Tungsten Graphics, Inc.
> OpenGL renderer string: Mesa DRI R200 20060602 TCL
> OpenGL version string: 1.3 Mesa 7.2
> <snip>
> 
> but the exhibited performance degradation of more than a decimal order
> of magnitude compared to the same test case on a quite similar hw
> configuration, just under osx, suggests software emulation.
> 
> here's the complete components version info as seen in Xorg.0.log:

I'm not aware of any problems with hw TCL or ARB_vp on any r200 chip
(and it shouldn't matter if pci or agp for this). You can use
R200_DEBUG=fall env var to see if the code hits any fallbacks.
Note that there are however cases the code is not optimized for and
might get excessively slow (like doing CopyTexImage which isn't hardware
accelerated).

Roland