diff options
author | Simon Hausmann <simon.hausmann@digia.com> | 2012-10-17 16:21:14 +0200 |
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committer | Simon Hausmann <simon.hausmann@digia.com> | 2012-10-17 16:21:14 +0200 |
commit | 8995b83bcbfbb68245f779b64e5517627c6cc6ea (patch) | |
tree | 17985605dab9263cc2444bd4d45f189e142cca7c /Source/WebCore/platform/graphics/filters/FEMorphology.cpp | |
parent | b9c9652036d5e9f1e29c574f40bc73a35c81ace6 (diff) |
Imported WebKit commit cf4f8fc6f19b0629f51860cb2d4b25e139d07e00 (http://svn.webkit.org/repository/webkit/trunk@131592)
New snapshot that includes the build fixes for Mac OS X 10.6 and earlier as well
as the previously cherry-picked changes
Diffstat (limited to 'Source/WebCore/platform/graphics/filters/FEMorphology.cpp')
-rw-r--r-- | Source/WebCore/platform/graphics/filters/FEMorphology.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/Source/WebCore/platform/graphics/filters/FEMorphology.cpp b/Source/WebCore/platform/graphics/filters/FEMorphology.cpp index 98d2a6a01..9e720f74a 100644 --- a/Source/WebCore/platform/graphics/filters/FEMorphology.cpp +++ b/Source/WebCore/platform/graphics/filters/FEMorphology.cpp @@ -173,14 +173,17 @@ void FEMorphology::platformApply(PaintingData* paintingData) ParallelJobs<PlatformApplyParameters> parallelJobs(&WebCore::FEMorphology::platformApplyWorker, optimalThreadNumber); int numOfThreads = parallelJobs.numberOfJobs(); if (numOfThreads > 1) { - const int deltaY = 1 + paintingData->height / numOfThreads; + // Split the job into "jobSize"-sized jobs but there a few jobs that need to be slightly larger since + // jobSize * jobs < total size. These extras are handled by the remainder "jobsWithExtra". + const int jobSize = paintingData->height / numOfThreads; + const int jobsWithExtra = paintingData->height % numOfThreads; int currentY = 0; for (int job = numOfThreads - 1; job >= 0; --job) { PlatformApplyParameters& param = parallelJobs.parameter(job); param.filter = this; param.startY = currentY; - currentY += deltaY; - param.endY = job ? currentY : paintingData->height; + currentY += job < jobsWithExtra ? jobSize + 1 : jobSize; + param.endY = currentY; param.paintingData = paintingData; } parallelJobs.execute(); |