tree c29fb45c6ca91f9dd8850372f10f81da472af9d4
parent 077a06c140001849dafbedc4175f9aa703bbba69
author Ian Romanick <ian.d.romanick@intel.com> 1246048216 -0700
committer Ian Romanick <ian.d.romanick@intel.com> 1246048346 -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.