GrTessellator: catch missing intersections.
Sometimes the intersection check will miss an intersection (because
floating point). This can leave the active edge list in an invalid
state, where an edge pair is incorrectly ordered. The fix is to test
for edge crossings after testing for intersections, and split the
edges manually. This extra check may result in a performance hit, so
we'll have to watch the perf bots carefully.
Bug: 843135
Change-Id: If50320413026be503cdb2d33e6c97f620e4d51a9
Reviewed-on: https://skia-review.googlesource.com/133400
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2 files changed