In the CPU backend, stop treating alpha images as coverage
This makes behavior (more) consistent with the GPU. In particular, the
alpha_image GM now looks roughly identical (it was very different
before).
Bug: skia:9692
Change-Id: I405375760ffe90577f863fa2d8eb9d2fc0f6edf8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/472799
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
4 files changed