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| author |  commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2014-05-19 18:51:05 +0000 |
|---|---|---|
| committer | commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2014-05-19 18:51:05 +0000 |
| commit | 7ba1702bbb52da72da3e2638c895e2080e1625f9 (patch) | |
| tree | 7e0f39b27646865731c560e1f54aa8eb97bfb07f /src/effects | |
| parent | 8d093d505941cfec47bdd2a53e5e6e36e6a1cede (diff) | |
fix off-by-one error in texture coordinate calculations for rrect gpu
blur; output now matches CPU
BUG=
R=bsalomon@google.com
Author: humper@google.com
Review URL: https://codereview.chromium.org/292773003
git-svn-id: http://skia.googlecode.com/svn/trunk@14788 2bbb7eff-a529-9590-31e7-b0007b416f81
Diffstat (limited to 'src/effects')
| -rw-r--r-- | src/effects/SkBlurMaskFilter.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/effects/SkBlurMaskFilter.cpp b/src/effects/SkBlurMaskFilter.cpp index 2169a42cb6..f263a02784 100644 --- a/src/effects/SkBlurMaskFilter.cpp +++ b/src/effects/SkBlurMaskFilter.cpp @@ -1040,13 +1040,13 @@ void GrGLRRectBlurEffect::emitCode(GrGLShaderBuilder* builder, builder->fsCodeAppendf("\t\tif (translatedFragPos.x >= threshold && translatedFragPos.x < (middle.x+threshold)) {\n" ); builder->fsCodeAppendf("\t\t\ttranslatedFragPos.x = threshold;\n"); builder->fsCodeAppendf("\t\t} else if (translatedFragPos.x >= (middle.x + threshold)) {\n"); - builder->fsCodeAppendf("\t\t\ttranslatedFragPos.x -= middle.x;\n"); + builder->fsCodeAppendf("\t\t\ttranslatedFragPos.x -= middle.x - 1.0;\n"); builder->fsCodeAppendf("\t\t}\n"); builder->fsCodeAppendf("\t\tif (translatedFragPos.y > threshold && translatedFragPos.y < (middle.y+threshold)) {\n" ); builder->fsCodeAppendf("\t\t\ttranslatedFragPos.y = threshold;\n"); builder->fsCodeAppendf("\t\t} else if (translatedFragPos.y >= (middle.y + threshold)) {\n"); - builder->fsCodeAppendf("\t\t\ttranslatedFragPos.y -= middle.y;\n"); + builder->fsCodeAppendf("\t\t\ttranslatedFragPos.y -= middle.y - 1.0;\n"); builder->fsCodeAppendf("\t\t}\n"); builder->fsCodeAppendf("\t\tvec2 proxyDims = vec2(2.0*threshold+1.0);\n"); |