| Summary: | swrast does not support GLX1.3 API of glXCreateWindow | ||
|---|---|---|---|
| Product: | Mesa | Reporter: | Zhiyuan <zhiyuan.lv> |
| Component: | GLX | Assignee: | Eric Anholt <eric> |
| Status: | RESOLVED FIXED | QA Contact: | |
| Severity: | normal | ||
| Priority: | medium | CC: | bugs.freedesktop, xinyunliu |
| Version: | 7.6 | ||
| Hardware: | x86 (IA32) | ||
| OS: | Linux (All) | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
| Attachments: | test case to show the error of "glXCreateWindow" in swrast | ||
Created attachment 35079 [details]
test case to show the error of "glXCreateWindow" in swrast
Works fine with 10.5.4. |
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glXCreateWindow() in mesa/src/glx/x11/ will call createDrawable() provided by dri backends. Right now the swrast implementation of that function (in mesa/src/glx/x11/drisw_glx.c) is quite like DRI implementation, which does not allow to have a new created drawable for GLX. Only DRI2 can work well. If the graphic driver does not support DRI2, or X client application is forced to run on swrast, there would be problems. How to reproduce: 1, Find a Linux machine with GLX1.3 or higher supported 2, compile the attached test case with: gcc -o test_glXCreateWindow test_glXCreateWindow.c -lGL 3, run the application with: LIBGL_ALWAYS_SOFTWARE=yes ./test_glXCreateWindow 4, MESA will then report "failed to create drawable"