diff options
| author | mtklein <mtklein@chromium.org> | 2015-06-22 11:00:47 -0700 |
|---|---|---|
| committer | Steve Kondik <steve@cyngn.com> | 2016-06-27 17:33:59 -0700 |
| commit | 66b1265cd8ce01288de9be29970719e519a3dfd8 (patch) | |
| tree | 1560054832c2e9c0fd0f63d3f31f49d6d9704e57 /src/opts/SkXfermode_opts_SSE2.cpp | |
| parent | d763b7472ad70d657fe20be6b3ed5275f5d72b6f (diff) | |
| download | android_external_skia-66b1265cd8ce01288de9be29970719e519a3dfd8.tar.gz android_external_skia-66b1265cd8ce01288de9be29970719e519a3dfd8.tar.bz2 android_external_skia-66b1265cd8ce01288de9be29970719e519a3dfd8.zip | |
Use vmulq_n_u32(..., 0x01010101) to distribute alphas.
This seems to make alphas() faster and Load[24]Alphas() no slower.
The change is particularly noticeable on xfermodes that call alphas()
twice (on src and dst), with a 10-12% speedup.
Xfermode_Difference_aa 29ms -> 28.4ms 0.98x
Xfermode_DstATop_aa 27.2ms -> 26.7ms 0.98x
Xfermode_Xor_aa 27.2ms -> 26.5ms 0.98x
Xfermode_DstOver 23.6ms -> 22.9ms 0.97x
Xfermode_DstOver_aa 27.8ms -> 26.8ms 0.96x
Xfermode_DstOut 22.6ms -> 21.7ms 0.96x
Xfermode_Multiply_aa 30ms -> 28.5ms 0.95x
Xfermode_DstOut_aa 26.1ms -> 24.8ms 0.95x
Xfermode_DstIn_aa 25.4ms -> 24.1ms 0.95x
Xfermode_DstATop 28.7ms -> 26ms 0.9x
Xfermode_Multiply 35.5ms -> 31.3ms 0.88x
Xfermode_Difference 31.8ms -> 27.7ms 0.87x
Xfermode_Xor 30.1ms -> 26.1ms 0.87x
BUG=skia:
Review URL: https://codereview.chromium.org/1203513002
Diffstat (limited to 'src/opts/SkXfermode_opts_SSE2.cpp')
0 files changed, 0 insertions, 0 deletions