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Bug 1229473 - Don't use composite colors for border sizes > 10000px because it's too slow. r=tn

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This commit is contained in:
Mats Palmgren 2016-06-20 19:55:57 +02:00
parent d5b52bdab1
commit e6364c3ff6
1 changed files with 12 additions and 3 deletions
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15
layout/base/nsCSSRenderingBorders.cpp
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@ -32,6 +32,8 @@
using namespace mozilla;
using namespace mozilla::gfx;
#define MAX_COMPOSITE_BORDER_WIDTH LayoutDeviceIntCoord(10000)
/**
* nsCSSRendering::PaintBorder
* nsCSSRendering::PaintOutline
@ -1373,9 +1375,16 @@ nsCSSBorderRenderer::DrawBorderSides(int aSides)
// color is used for the remainder of the border's size. Just
// hand off to another function to do all that.
if (compositeColors) {
DrawBorderSidesCompositeColors(aSides, compositeColors);
return;
}
Float maxBorderWidth(0);
NS_FOR_CSS_SIDES (i) {
maxBorderWidth = std::max(maxBorderWidth, mBorderWidths[i]);
}
if (maxBorderWidth <= MAX_COMPOSITE_BORDER_WIDTH) {
DrawBorderSidesCompositeColors(aSides, compositeColors);
return;
}
NS_WARNING("DrawBorderSides: too large border width for composite colors");
}
// We're not doing compositeColors, so we can calculate the
// borderColorStyle based on the specified style. The