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| author |  senorblanco@chromium.org <senorblanco@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2014-01-09 17:41:42 +0000 |
|---|---|---|
| committer | senorblanco@chromium.org <senorblanco@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2014-01-09 17:41:42 +0000 |
| commit | 857e320300372dab938c0dbffadc3c2c8a893b92 (patch) | |
| tree | 70c005b39f96ede6242133d8556d1b0cede7dcad | |
| parent | 9a907fa0d3ac573af2f5b45bd41af76c9035777f (diff) | |
Use truncation, not rounding, when converting perlin noise seed (required by SVG spec).
BUG=
R=reed@google.com
Review URL: https://codereview.chromium.org/132053002
git-svn-id: http://skia.googlecode.com/svn/trunk@12995 2bbb7eff-a529-9590-31e7-b0007b416f81
| -rw-r--r-- | src/effects/SkPerlinNoiseShader.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/effects/SkPerlinNoiseShader.cpp b/src/effects/SkPerlinNoiseShader.cpp index 5f858303c5..77ce9cb348 100644 --- a/src/effects/SkPerlinNoiseShader.cpp +++ b/src/effects/SkPerlinNoiseShader.cpp @@ -124,8 +124,9 @@ public: { static const SkScalar gInvBlockSizef = SkScalarInvert(SkIntToScalar(kBlockSize)); + // According to the SVG spec, we must truncate (not round) the seed value. + fSeed = SkScalarTruncToInt(seed); // The seed value clamp to the range [1, kRandMaximum - 1]. - fSeed = SkScalarRoundToInt(seed); if (fSeed <= 0) { fSeed = -(fSeed % (kRandMaximum - 1)) + 1; } |