commit bc1ce2c0caa186bca110de06f96d7063c08bc1d8
author Mike Klein <mtklein@google.com> Mon Feb 03 12:17:13 2020 -0600
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Mon Feb 03 18:51:05 2020 +0000
tree f788141bbd12928b79f7bc9f4c47924da82e40ec
parent 23e2ad174cfa14497a13116aad4b2ebb3fbbcd8f

test premul/unpremul are no-ops when a==1.0f

Constant propagation means we can always notionally
unpremul and premul at the right points, and if alpha
was already opaque, they'll just drop away.

This has been true, but it's nice to put a test on it.

Change-Id: Iacd2002d9e1a10b73e800a452f377001d5ba3777
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/268336
Auto-Submit: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>