tree e469cd7a141bdd8817ea23e3710b7bab3ae9badd
parent 38af9438d7b7fa838aff2931d9afb4dd4a82549d
author liyuqian <liyuqian@google.com> 1478887191 -0800
committer Commit bot <commit-bot@chromium.org> 1478887191 -0800

Tighten SkAAClip Bounds by Path Bounds

This bug chromium:662780 exists after our original fix (https://codereview.chromium.org/2477393002/) because this path (added in unit test) is calling blitAntiRect rather than blitAntiH when the path is drifted across the boundary. (The quadratic edge drifts across the boundary after an update and sets a dX=0 line segment which triggers blitAntiRect.)

Note that I didn't assert for the dLeft = dRite = 0 case because the left/right there won't drift after the SkTMin/SkTMax in line 964/966.

Theoretically we can revert the relaxation in https://codereview.chromium.org/2477393002/ (that's only a relaxation for analytic AA, not supersampled AA). However, consider that the initial landing of analytic AA is so painful, I decide to revert that relaxation only after our successful landing...

BUG=chromium:662780, chromium:662862
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2482193004

Review-Url: https://codereview.chromium.org/2482193004