Xfermode: SSE2 implementation of a number of simple transfer modes
These modes share some common code and not very complex, so group them
together. This CL yields about 50% performance improvement on desktop
i7-3770. Here are the data:
before:
Xfermode_Screen 8888: cmsecs = 30.25 565: cmsecs = 46.81
Xfermode_Modulate 8888: cmsecs = 22.48 565: cmsecs = 40.06
Xfermode_Plus 8888: cmsecs = 21.04 565: cmsecs = 37.51
Xfermode_Xor 8888: cmsecs = 37.18 565: cmsecs = 52.53
Xfermode_DstATop 8888: cmsecs = 28.97 565: cmsecs = 46.42
Xfermode_SrcATop 8888: cmsecs = 29.74 565: cmsecs = 46.25
Xfermode_DstOut 8888: cmsecs = 5.34 565: cmsecs = 24.53
Xfermode_SrcOut 8888: cmsecs = 12.25 565: cmsecs = 24.39
Xfermode_DstIn 8888: cmsecs = 5.30 565: cmsecs = 24.50
Xfermode_SrcIn 8888: cmsecs = 12.05 565: cmsecs = 25.40
Xfermode_DstOver 8888: cmsecs = 12.45 565: cmsecs = 0.15
Xfermode_SrcOver 8888: cmsecs = 2.68 565: cmsecs = 4.42
after:
Xfermode_Screen 8888: cmsecs = 13.68 565: cmsecs = 21.73
Xfermode_Modulate 8888: cmsecs = 13.25 565: cmsecs = 20.97
Xfermode_Plus 8888: cmsecs = 9.77 565: cmsecs = 16.71
Xfermode_Xor 8888: cmsecs = 17.64 565: cmsecs = 25.62
Xfermode_DstATop 8888: cmsecs = 15.99 565: cmsecs = 23.74
Xfermode_SrcATop 8888: cmsecs = 15.69 565: cmsecs = 23.40
Xfermode_DstOut 8888: cmsecs = 4.77 565: cmsecs = 11.85
Xfermode_SrcOut 8888: cmsecs = 4.98 565: cmsecs = 11.84
Xfermode_DstIn 8888: cmsecs = 4.68 565: cmsecs = 11.72
Xfermode_SrcIn 8888: cmsecs = 4.93 565: cmsecs = 11.79
Xfermode_DstOver 8888: cmsecs = 5.04 565: cmsecs = 0.15
Xfermode_SrcOver 8888: cmsecs = 2.69 565: cmsecs = 4.42
BUG=skia:
R=mtklein@google.com
Author: qiankun.miao@intel.com
Review URL: https://codereview.chromium.org/232793002
git-svn-id: http://skia.googlecode.com/svn/trunk/src@14176 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed