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Bug 535185 - patterns of non-integer scaled size have seams. r=roc

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This commit is contained in:
Robert Longson 2009-12-23 11:30:44 +00:00
parent 39819bf5e6
commit a5223c1c5f
1 changed files with 5 additions and 3 deletions
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8
layout/svg/base/src/nsSVGPatternFrame.cpp
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@ -241,8 +241,10 @@ nsSVGPatternFrame::PaintPattern(gfxASurface** surface,
if (surfaceSize.width <= 0 || surfaceSize.height <= 0)
return NS_ERROR_FAILURE;
if (resultOverflows) {
// scale down drawing to new pattern surface size
if (resultOverflows ||
patternWidth != surfaceSize.width ||
patternHeight != surfaceSize.height) {
// scale drawing to pattern surface size
nsCOMPtr<nsIDOMSVGMatrix> tempTM, aCTM;
NS_NewSVGMatrix(getter_AddRefs(tempTM),
surfaceSize.width / patternWidth, 0.0f,
@ -251,7 +253,7 @@ nsSVGPatternFrame::PaintPattern(gfxASurface** surface,
patternFrame->mCTM->Multiply(tempTM, getter_AddRefs(aCTM));
aCTM.swap(patternFrame->mCTM);
// and magnify pattern to compensate
// and rescale pattern to compensate
patternMatrix->Scale(patternWidth / surfaceSize.width,
patternHeight / surfaceSize.height);
}