Am Donnerstag, den 26.01.2006, 22:31 +0100 schrieb Michael Karcher: > Am Donnerstag, den 26.01.2006, 14:05 -0700 schrieb Brian Paul: > > I don't have a Savage card to test anything myself. Looks like the > > driver's ColorMask code depends on the card model. Which card are you > > using? > As the subject says, it is a Savage IX built into a Thinkpad T20. I > probably should add that I am using 16bpp, which makes bitmask errors > possible. I now tried other depths, which just showed another bunch of problems. If I switch to 24bpp, I get really funny colors in 2D mode, they change with the xgamma setting. I guess the gamma correction tables are messed up. 3D acceleration produces very strange results (picture width horizontally half of what it should be, distorted geometry and colors) which give the impression that some part of hard- or software is assuming 2 bytes per pixel instead of four. Software fallback (as Felix mentioned) in the red/blue stereo case works OK (except for the funny colors already seen in 2D), and looks the same as with LIBGL_ALWAYS_INDIRECT, but of course it is slow.
After that experience I tried 15bpp. In this case 2D looks quite OK. The gradient in the window title of my sawfish theme looks a bit odd with too much red mixed in some steps, but that might be an application bug. 3D acceleration does not work correctly, as warning messages of libgl already say "driver claims to not support visual 0x..". The output of 3D acceleration looks like it is meant for 16bpp. Software fallback in the red/blue-stereo case does *not* work correctly: The image width doubles, and at some time the application crashes. It looks like rendering for 32bpp, which might be OK. A final note to the 16bpp case: The performance of xmakemol and the User-to-system CPU usage ratio seem to indicate the software fallback, so the question remains: Why is the output wrong? Michael Karcher ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
