Convert A8 D32 mask blitters to Sk4px
Improves the newly added bench by ~25% (hsw):
-- before --
micros bench
2298.34 shadermaskfilter_picture_80 8888
2339.60 shadermaskfilter_picture_ff 8888
2287.11 shadermaskfilter_bitmap_80 8888
2223.14 shadermaskfilter_bitmap_ff 8888
-- after --
1693.36 shadermaskfilter_picture_80 8888
1637.45 shadermaskfilter_picture_ff 8888
1691.65 shadermaskfilter_bitmap_80 8888
1637.70 shadermaskfilter_bitmap_ff 8888
But: skia:7810
Change-Id: I7274b10f517551ee2c0646842f72e0372d55e509
Reviewed-on: https://skia-review.googlesource.com/121642
Commit-Queue: Florin Malita <fmalita@chromium.org>
Reviewed-by: Mike Klein <mtklein@google.com>
5 files changed