Optimize SkTriangulateSimplePolygon.

Adds a grid data structure for doing fast triangle checks.

Bug: skia:7971
Change-Id: I1c492fab55dbc20125dd5f2460b53ba60c62c6c7
Reviewed-on: https://skia-review.googlesource.com/155002
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
1 file changed