diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/utils/SkPolyUtils.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/utils/SkPolyUtils.cpp b/src/utils/SkPolyUtils.cpp index 0d1b71c76b..8a4bf49000 100644 --- a/src/utils/SkPolyUtils.cpp +++ b/src/utils/SkPolyUtils.cpp @@ -486,7 +486,13 @@ bool SkComputeRadialSteps(const SkVector& v1, const SkVector& v2, SkScalar r, } SkScalar theta = SkScalarATan2(rSin, rCos); - int steps = SkScalarRoundToInt(SkScalarAbs(r*theta*kRecipPixelsPerArcSegment)); + SkScalar floatSteps = SkScalarAbs(r*theta*kRecipPixelsPerArcSegment); + // limit the number of steps to at most max uint16_t (that's all we can index) + // knock one value off the top to account for rounding + if (floatSteps >= (1 << 16)-1) { + return false; + } + int steps = SkScalarRoundToInt(floatSteps); SkScalar dTheta = steps > 0 ? theta / steps : 0; *rotSin = SkScalarSinCos(dTheta, rotCos); |