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This is only meaningful for indirect contexts, and all it does is (maybe) prevent a flush when switching away from an indirect context. Indirect contexts aren't worth optimizing for, and Mesa tracks whether a flush is needed anyway. Careful readers will note that ReadPixels would reset the flag even though it doesn't imply a flush! Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Adam Jackson <ajax@redhat.com>
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11 KiB