This prevents visuals with odd sizes. The machine I use didn't have
this problem, but it shows up on some others.
(cherry picked from commit ed181382ddeb77019577d39b9c06b1cd839e18e4)
GL/capabilities.c: Add handleDepthModes(), and extend
handleRendererDescription() for the various depth and multisampling flags.
Add initialization of the new config options to initConfig().
GL/capabilities.h: Add depth and multisample config members.
GL/visualConfigs.c: Add depth and multisampling support to the visual config
setup.
(cherry picked from commit f527381eea6a8ae6cd791475b2060d21fcf8efb2)
GL/capabilities.c: #if 0 (for now) any capabilities above 8 bits per channel,
because they introduce drawing problems.
GL/indirect.c: Comment out some visual setup code that shouldn't be running, and
actually seemed to cause some problems. The current visualConfigs.c code seems
to do a reasonable job of setting up visuals for XQuartz.
GL/visualConfigs.c: Make use of the proper visual .class. Eliminate depth 0.
It seems we really just want 24 for now, and 0 I think was a flaw in the original
code.
(cherry picked from commit 1e5f63f15e13a40a6e69a1505934d10d6990b6a2)
This is used in libGL to determine a preferred visual. glxinfo -v will also
report "visualCaveat=Slow" for such visuals.
(cherry picked from commit d5c17f585a240be9f9135975738e62951cde3353)
This gives us a *lot* more visuals, and they should be more accurate.
Some of the visuals may have been wrong before. This may enable more
OpenGL programs to behave correctly.
I also suspect libGL needs a little work to handle some of these correctly.
(cherry picked from commit 98a084ce9c455260ecdb5f8eecb67f33dbb53b69)
We need to revisit the GL/indirect.c changes. I think indirect.c should
be using the same feature detection and GLX visual config code. The
indirect changes will require testing...
(cherry picked from commit 49b7a7c6f20ca85d4d624444eb83db2f91344591)
Use ErrorF for an error message after an xcalloc failure, and return instead of falling through to GlxSetVisualConfigs, or abort()ing at the test branch.
(cherry picked from commit 1056700971fd5c034396ed6dbea15e092f0c6332)
Add a setVisualConfigs that is called before the fbScreenInit, to setup the __GLXvisualConfigs.
(cherry picked from commit fc86f9e4482043eca76d9d7a96e166be1aabf674)