experimental speedup some xfermodes with Sk4f
Old:
7M 1 11.1ms 11.3ms 11.3ms 11.6ms 1% ▅▄▂▂▁▁▄▄█▇ 8888 Xfermode_Screen
7M 1 10.7ms 10.9ms 10.9ms 11.1ms 1% ▄▄▄▇▃▁█▄▂▅ 8888 Xfermode_Modulate
7M 1 7.86ms 8.03ms 8ms 8.18ms 1% █▇▅▁▃▃▂▃▆▅ 8888 Xfermode_Plus
7M 1 14.6ms 14.8ms 14.8ms 15.1ms 1% ▄█▆▅▄▁▁▆▄▆ 8888 Xfermode_Xor
7M 1 13ms 13.5ms 13.4ms 13.8ms 2% ▅▃▇▁█▂▃▅▃▅ 8888 Xfermode_DstATop
7M 1 13.1ms 13.4ms 13.3ms 13.6ms 1% ▄▁▁▆▅▄▇▆█▂ 8888 Xfermode_SrcATop
New:
7M 1 6.99ms 7.19ms 7.4ms 8.98ms 8% ▁▂▁▃▂█▁▂▂▂ 8888 Xfermode_Screen
7M 1 5.27ms 5.46ms 5.46ms 5.89ms 3% ▁▁▅▁▂█▄▃▄▃ 8888 Xfermode_Modulate
7M 1 6.8ms 7.04ms 7.27ms 8.53ms 8% ▂▁█▁▁▂▂▂▂▇ 8888 Xfermode_Plus
7M 1 9ms 9.2ms 9.33ms 10.5ms 5% ▁█▃▁▂▁▁▁▅▂ 8888 Xfermode_Xor
7M 1 8.34ms 8.57ms 8.73ms 10.6ms 8% ▁▁▁▂▂▂▂▂▂█ 8888 Xfermode_DstATop
7M 1 8.38ms 8.62ms 8.91ms 10.3ms 8% ▁▃▁▂▇▂▁▂▁█ 8888 Xfermode_SrcATop
Need to define SK_SUPPORT_LEGACY_SCALAR_XFERMODES in chrome to suppress change (see https://codereview.chromium.org/1054083002/)
Review URL: https://codereview.chromium.org/1043413002
2 files changed