diff options
| author |  Yuqian Li <liyuqian@google.com> | 2016-11-16 13:07:57 -0500 |
|---|---|---|
| committer | Yuqian Li <liyuqian@google.com> | 2016-11-16 18:43:52 +0000 |
| commit | 20079a94e82fd7345dfb119a8777e5ba482a041c (patch) | |
| tree | 379ad97f7cb40878d03c1a7ee08531bf0e842482 /src/core/SkAnalyticEdge.h | |
| parent | 721625b25e3e99d23b7765c75ba0b2ae5a351f7e (diff) | |
Fix mask overflow caused by edge drift
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4797
Change-Id: Ica1568b67c1e1ce4aae2bdaba2c5b1f2155d1382
Reviewed-on: https://skia-review.googlesource.com/4797
Reviewed-by: Cary Clark <caryclark@google.com>
Diffstat (limited to 'src/core/SkAnalyticEdge.h')
| -rw-r--r-- | src/core/SkAnalyticEdge.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/core/SkAnalyticEdge.h b/src/core/SkAnalyticEdge.h index 00812866d5..a55ab2a71e 100644 --- a/src/core/SkAnalyticEdge.h +++ b/src/core/SkAnalyticEdge.h @@ -44,7 +44,7 @@ struct SkAnalyticEdge { static inline SkFixed snapY(SkFixed y, int accuracy = kDefaultAccuracy) { // This approach is safer than left shift, round, then right shift - return (y + (SK_Fixed1 >> (accuracy + 1))) >> (16 - accuracy) << (16 - accuracy); + return ((unsigned)y + (SK_Fixed1 >> (accuracy + 1))) >> (16 - accuracy) << (16 - accuracy); } // Update fX, fY of this edge so fY = y |