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Reenable circle blur fast path for ellipse that transforms to circle

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Bug: chromium:1132617
Change-Id: Id9ecc22dfd1720195e0753cfc2b0897fe09dc2ae
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/327378
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
This commit is contained in:
Brian Salomon 2020-10-15 17:13:34 -04:00 committed by Skia Commit-Bot
parent fd74ac6498
commit 1131b659f6
1 changed files with 21 additions and 10 deletions
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31
src/core/SkBlurMF.cpp
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@ -713,21 +713,33 @@ bool SkBlurMaskFilterImpl::directFilterMaskGPU(GrRecordingContext* context,
std::unique_ptr<GrFragmentProcessor> fp;
SkRRect devRRect;
bool devRRectIsValid = srcRRect.transform(viewMatrix, &devRRect);
bool devRRectIsCircle = devRRectIsValid && SkRRectPriv::IsCircle(devRRect);
bool canBeRect = srcRRect.isRect() && viewMatrix.preservesRightAngles();
bool canBeCircle = SkRRectPriv::IsCircle(srcRRect) && viewMatrix.isSimilarity();
bool canBeCircle = (SkRRectPriv::IsCircle(srcRRect) && viewMatrix.isSimilarity()) ||
devRRectIsCircle;
if (canBeRect || canBeCircle) {
if (canBeRect) {
fp = GrRectBlurEffect::Make(
/*inputFP=*/nullptr, context, *context->priv().caps()->shaderCaps(),
srcRRect.rect(), viewMatrix, xformedSigma);
} else {
SkPoint center = {srcRRect.getBounds().centerX(), srcRRect.getBounds().centerY()};
viewMatrix.mapPoints(&center, 1);
SkScalar radius = viewMatrix.mapVector(0, srcRRect.width()/2.f).length();
SkRect devBounds = {center.x() - radius,
center.y() - radius,
center.x() + radius,
center.y() + radius};
SkRect devBounds;
if (devRRectIsCircle) {
devBounds = devRRect.getBounds();
} else {
SkPoint center = {srcRRect.getBounds().centerX(), srcRRect.getBounds().centerY()};
viewMatrix.mapPoints(&center, 1);
SkScalar radius = viewMatrix.mapVector(0, srcRRect.width()/2.f).length();
devBounds = {center.x() - radius,
center.y() - radius,
center.x() + radius,
center.y() + radius};
}
fp = GrCircleBlurFragmentProcessor::Make(/*inputFP=*/nullptr, context, devBounds,
xformedSigma);
}
@ -760,8 +772,7 @@ bool SkBlurMaskFilterImpl::directFilterMaskGPU(GrRecordingContext* context,
if (!viewMatrix.isScaleTranslate()) {
return false;
}
SkRRect devRRect;
if (!srcRRect.transform(viewMatrix, &devRRect) || !SkRRectPriv::AllCornersCircular(devRRect)) {
if (!devRRectIsValid || !SkRRectPriv::AllCornersCircular(devRRect)) {
return false;
}