Simplify Porter-Duff coefficient blending expression.
The earlier implementation generated a very very long expression on a
single line. I split out the logic across into multiple lines, and
also realized that the majority of the logic was repeated two times. Now
we use a vec2 to avoid spelling out the math twice.
Change-Id: I1a60e3663de3d774c5abdcd166734b07ea3dbaaa
Bug: skia:13109
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/525841
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
1 file changed