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[sksg] Skip zero-width strokes

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Zero-width strokes imply hairline in Skia, but in other models (e.g.
Lottie) they are simply ignored.  The latter approach avoids
discontinuities when width -> 0, so let's make it the default for sksg.

TBR=
Change-Id: I957a873c0e6468e21372115ed18cc7316fd2e7d1
Reviewed-on: https://skia-review.googlesource.com/97661
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
This commit is contained in:
Florin Malita 2018-01-21 10:26:46 -05:00 committed by Skia Commit-Bot
parent b7235a9b73
commit 739641580f
1 changed files with 7 additions and 1 deletions
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8
experimental/sksg/SkSGDraw.cpp
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@ -26,7 +26,13 @@ Draw::~Draw() {
}
void Draw::onRender(SkCanvas* canvas) const {
fGeometry->draw(canvas, fPaint->makePaint());
const auto& paint = fPaint->makePaint();
const auto skipDraw = paint.nothingToDraw() ||
(paint.getStyle() == SkPaint::kStroke_Style && paint.getStrokeWidth() <= 0);
if (!skipDraw) {
fGeometry->draw(canvas, paint);
}
}
SkRect Draw::onRevalidate(InvalidationController* ic, const SkMatrix& ctm) {