http://bugs.freedesktop.org/show_bug.cgi?id=21774
--- Comment #6 from Ian Romanick <i...@freedesktop.org> 2009-06-29 18:46:52
PST ---
I committed a fix last week to mesa_7_5_branch that fixes and additional
front-buffer rendering issue. It might fix this problem as well.
commit 2d86503471cb8691ce266342810237fc1b15a7b2
Author: Ian Romanick <ian.d.roman...@intel.com>
Date: Fri Jun 26 13:30:16 2009 -0700
intel / DRI2: Additional flush of fake front-buffer to real front-buffer
To maintain correctness, the server will copy the real front-buffer to
a newly allocated fake front-buffer in DRI2GetBuffersWithFormat.
However, if the DRI2GetBuffersWithFormat is triggered by glViewport,
this will copy stale data into the new buffer. Fix this by flushing
the current fake front-buffer to the real front-buffer in
intel_viewport.
Fixes bug #22288.
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