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| author |  mtklein <mtklein@chromium.org> | 2015-06-22 11:00:47 -0700 |
|---|---|---|
| committer |  Commit bot <commit-bot@chromium.org> | 2015-06-22 11:00:48 -0700 |
| commit | 343c7d15c831a3c3d8a6984c1a1b524b414012df (patch) | |
| tree | fcbcb455397191324852e8f3f33eccfbcca44633 /src/core/SkSpriteBlitter.h | |
| parent | fef3fad272699ecc1363664bfb4c121462761c06 (diff) | |
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/core/SkSpriteBlitter.h')
0 files changed, 0 insertions, 0 deletions