Add trunc/round/roundEven SKSL ES3 public APIs.
Improved tests caught a longstanding bug in the compile-time
optimization logic for round/roundEven. These would *always* round to an
even number even when it didn't make sense to do so. (e.g. 3.1 would
round to 4.)
RoundEven isn't available in lower shader models of Direct3D;
SPIRV-Cross throws if it's unavailable. We may need a caps bit for this.
Change-Id: I3cc50238a2116b8d4e2c4059730d8b5cfb2bb056
Bug: skia:12022, skia:12352
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/441078
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
16 files changed
