commit | 80077a80c25a9623a800006c97ebe67daf89ba60 | [log] [tgz] |
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author | Frank Barchard <fbarchard@chromium.org> | Mon Oct 23 18:47:18 2017 |
committer | Commit Bot <commit-bot@chromium.org> | Mon Oct 23 21:15:12 2017 |
tree | 31032780f5ece609e1a5a09cb538d91009fa3cb8 | |
parent | 3e5bbea5bfecfdb233e23aec6fd188c643c3ad53 [diff] |
HammingDistance_X86 using popcnt assembly popcnt has a fake dependency on the destination. This assembly avoids the dependency by using a different register for each popcnt. Bug: libyuv:701 Test: LIBYUV_DISABLE_SSSE3=1 out/Release/libyuv_unittest --gtest_filter=*Ham*Opt --libyuv_width=1280 --libyuv_height=720 --libyuv_repeat=9999 --libyuv_flags=-1 --libyuv_cpu_info=-1 Change-Id: Ie1d202e2613b7fa8a3c02acd433940e92c80eafa Reviewed-on: https://chromium-review.googlesource.com/731826 Reviewed-by: Cheng Wang <wangcheng@google.com> Reviewed-by: Frank Barchard <fbarchard@google.com> Commit-Queue: Frank Barchard <fbarchard@google.com>
libyuv is an open source project that includes YUV scaling and conversion functionality.
See [Getting started] 1 for instructions on how to get started developing.
You can also browse the [docs directory] 2 for more documentation.