AuroraMiddleware/skia2
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Add a comment to explain clip intersection in crop rects.

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BUG=skia:
R=robertphillips

Review URL: https://codereview.chromium.org/1401973003
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senorblanco 2015-10-15 05:04:27 -07:00 committed by Commit bot
parent f469fc0e0f
commit 74ec8d47b5
1 changed files with 5 additions and 0 deletions
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5
src/core/SkImageFilter.cpp
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@ -87,6 +87,11 @@ bool SkImageFilter::CropRect::applyTo(const SkIRect& imageBounds, const Context&
cropped->fBottom = cropped->fTop + devICropR.height(); cropped->fBottom = cropped->fTop + devICropR.height();
} }
} }
// Intersect against the clip bounds, in case the crop rect has
// grown the bounds beyond the original clip. This can happen for
// example in tiling, where the clip is much smaller than the filtered
// primitive. If we didn't do this, we would be processing the filter
// at the full crop rect size in every tile.
return cropped->intersect(ctx.clipBounds()); return cropped->intersect(ctx.clipBounds());
} }