Revert of Add ETC1 powered SSE encoder for tile texture compression (patchset #23 id:440001 of https://codereview.chromium.org/
1096703002/)
Reason for revert:
Speculative revert. Looks like this change breaks compilation on win8 GN:
http://build.chromium.org/p/chromium.win/builders/Win8%20GN
Failure Example:
http://build.chromium.org/p/chromium.win/builders/Win8%20GN/builds/7283
Original issue's description:
> Add ETC1 powered SSE encoder for tile texture compression
>
> Created an ETC1 encoder that uses SSE2 to improve compression speed.
> The SSE encoder extends TextureCompressor and uses the same algorithm as TextureCompressorETC1.
>
> Added unittest for TextureCompressorETC1.
>
> Moved shared code into a etc1 header.
>
> Added new performance test scenarios.
>
> Performance difference on Ubuntu x64, Haswell Processor:
> Without SSE:
> *RESULT Compress256x256BlackAndWhiteGradientImage: ETC1 Low= 1.
966321587562561 us
> *RESULT Compress256x256SolidBlackImage: ETC1 Low= .
0956009104847908 us
> *RESULT Compress256x256SolidColorImage: ETC1 Low= .
4367307722568512 us
> *RESULT Compress256x256RandomColorImage: ETC1 Low= 5.
948055744171143 us
>
> With SSE:
> *RESULT Compress256x256BlackAndWhiteGradientImage: ETC1 Low= 1.
0316201448440552 us
> *RESULT Compress256x256SolidBlackImage: ETC1 Low= .
25716209411621094 us
> *RESULT Compress256x256SolidColorImage: ETC1 Low= .
2768038809299469 us
> *RESULT Compress256x256RandomColorImage: ETC1 Low= 1.
834145426750183 us
>
> BUG=434699
> TEST=newly added unittest TextureCompressorETC1Test::Compress256x256CreateETC1, TextureCompressorETC1Test::Compress256x256RatioETC1
>
> Committed: https://crrev.com/
5f3849aa8307399b7e6dfe5665ed149594244077
> Cr-Commit-Position: refs/heads/master@{#329840}
TBR=reveman@chromium.org,christiank@opera.com,jie.a.chen@intel.com,robert.bradford@intel.com,radu.velea@intel.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=434699
Review URL: https://codereview.chromium.org/
1136083003
Cr-Commit-Position: refs/heads/master@{#329845}