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authorEric Anholt <[email protected]>2013-12-24 15:11:54 -0800
committerEric Anholt <[email protected]>2014-01-09 15:39:20 +0800
commitf46563fe1c8a5560e4de0adf03e3d8770b7fc734 (patch)
treee3c442ebd9b81218848e1f3a644d23119e6549ea /src/glsl/lower_noise.cpp
parente186b927b8254ce62e0d47db90d16cd4253b3db5 (diff)
i965: Don't do the temporary-and-blit-copy for INVALIDATE_RANGE maps.
We definitely want to fall through to the unsynchronized map case, instead of wasting bandwidth on a copy. Prevents a -43.2407% +/- 1.06113% (n=49) performance regression on aa10perf when teaching glamor to provide the GL_INVALIDATE_RANGE_BIT information. This is a performance fix, which I usually wouldn't cherry-pick to stable. But this was really was just a bug in the code, its presence would discourage developers from giving us the best information they can, and I think we've got fairly high confidence in the unsynchronized map path already. Cc: 10.0 9.2 <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
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