tree 277a9173fa8d6c6feeb08974f254787bd166026b
parent 33d4ac453322e66d0ff874107f630b3a35587577
author John Stiles <johnstiles@google.com> 1624025654 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> 1624029198 +0000

Implement SkBlender support in Ganesh.

SkBlenderBase::asFragmentProcessor now returns a working runtime-blender
FP. This FP is appended to the end of the paintFP chain by
skpaint_to_grpaint_impl when an SkPaint contains an SkBlender, and the
GrPaint's XferProcessor factory is set to kSrc.

Unit tests have been added to verify basic functionality is working as
expected; more thorough drawing tests will be added once the CPU side is
running as well (since we don't want GMs that render differently on CPU
and GPU).

Change-Id: I255abd057fa75d638a9f2612c1a353be4de9e24c
Bug: skia:12080
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/419358
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>