diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/effects/SkPerlinNoiseShader.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/effects/SkPerlinNoiseShader.cpp b/src/effects/SkPerlinNoiseShader.cpp index 72a26d5f6b..1f19326e52 100644 --- a/src/effects/SkPerlinNoiseShader.cpp +++ b/src/effects/SkPerlinNoiseShader.cpp @@ -357,6 +357,9 @@ SkScalar SkPerlinNoiseShader::PerlinNoiseShaderContext::noise2D( int b11 = (j + noiseY.nextNoisePositionIntegerValue) & kBlockMask; SkScalar sx = smoothCurve(noiseX.noisePositionFractionValue); SkScalar sy = smoothCurve(noiseY.noisePositionFractionValue); + if (sx < 0 || sy < 0 || sx > 1 || sy > 1) { + return 0; // Check for pathological inputs. + } // This is taken 1:1 from SVG spec: http://www.w3.org/TR/SVG11/filters.html#feTurbulenceElement SkPoint fractionValue = SkPoint::Make(noiseX.noisePositionFractionValue, noiseY.noisePositionFractionValue); // Offset (0,0) |