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check for culled-out paths inside SkDraw

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BUG=629026
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2155213002

Review-Url: https://codereview.chromium.org/2155213002
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reed 2016-07-18 13:22:55 -07:00 committed by Commit bot
parent 034f243c6d
commit 01a2ff8a32
1 changed files with 21 additions and 0 deletions
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21
src/core/SkDraw.cpp
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@ -1017,6 +1017,27 @@ SkScalar SkDraw::ComputeResScaleForStroking(const SkMatrix& matrix) {
void SkDraw::drawDevPath(const SkPath& devPath, const SkPaint& paint, bool drawCoverage, void SkDraw::drawDevPath(const SkPath& devPath, const SkPaint& paint, bool drawCoverage,
SkBlitter* customBlitter, bool doFill) const { SkBlitter* customBlitter, bool doFill) const {
// Do a conservative quick-reject test, since a looper or other modifier may have moved us
// out of range.
if (!devPath.isInverseFillType()) {
// If we're a H or V line, our bounds will be empty. So we bloat here just so we don't
// appear empty to the intersects call. This also gives us slop in case we're antialiasing
SkRect pathBounds = devPath.getBounds().makeOutset(1, 1);
if (paint.getMaskFilter()) {
paint.getMaskFilter()->computeFastBounds(pathBounds, &pathBounds);
// Need to outset the path to work-around a bug in blurmaskfilter. When that is fixed
// we can remove this hack. See skbug.com/5542
pathBounds.outset(7, 7);
}
// Now compare against the clip's bounds
if (!SkRect::Make(fRC->getBounds()).intersects(pathBounds)) {
return;
}
}
SkBlitter* blitter = nullptr; SkBlitter* blitter = nullptr;
SkAutoBlitterChoose blitterStorage; SkAutoBlitterChoose blitterStorage;
if (nullptr == customBlitter) { if (nullptr == customBlitter) {