* For ambient we outset a constant amount around the perspective shape.
* For spot we compute the projection of the bounds from the light's
perspective, and from that compute a matrix to transform the path.
Bug: skia:7971
Change-Id: I7fffdd1446423956773d145ff4fae0a81602ad5b
Reviewed-on: https://skia-review.googlesource.com/150471
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
* Clamp path polygon points to nearest 1/16th of a pixel to help
with floating point issues.
* Added check for multiple contour paths.
* Return empty SkVertices for certain degenerate cases to avoid
unnecessary blurs.
* Check iteration count in SkOffsetPolygon to avoid infinite loops.
* Add new tests to verify these.
Bug: skia:
Change-Id: Ie6ad48d2504e065dcc822609d369f90c56ef3ad3
Reviewed-on: https://skia-review.googlesource.com/136701
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Bug: b/71719631
Change-Id: I676c34dfe5ea9b5e184ea53dd49a8b835d4e8cb6
Reviewed-on: https://skia-review.googlesource.com/95741
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Bug: skia:6880
Change-Id: Ia8b94e52eec3feb5104d2351bf7a7e6f99101deb
Reviewed-on: https://skia-review.googlesource.com/26370
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
