tree 33035ec717c4d81de7cb633989cb966598b80230
parent 2a65a238b0e688356aee09d08f3f8a317359b4d2
author qiankun.miao <qiankun.miao@intel.com> 1409105201 -0700
committer Commit bot <commit-bot@chromium.org> 1409105202 -0700

Improve performance of highQualityFilter

Move loop invariant caculation out of loop. This gives about 15% speedup
for bitmap_BGRA_8888_A_scale_rotate_bicubic on my desktop i7-3770.

BUG=skia:
R=humper@google.com, mtklein@google.com, reed@google.com

Author: qiankun.miao@intel.com

Review URL: https://codereview.chromium.org/502953004