0ebf4192f1
Node subclasses can now control whether their bounds (changes)
contribute to damage.
Tristate:
* Default: The node bounds contribute to damage if the node itself was
invalidated, observing hasSelfInval(). This is the default
behavior.
* ForceSelf: The node bounds contribute to damage, regardless of
hasSelfInval(). Used for domain-boundary nodes (e.g. Draw),
which gate blocked fragments (e.g. geometry, paint nodes).
* BlockSelf: The node bounds do not contribute to damage, regardless of
hasSelfInval(). Used for nodes which do not contribute
damage directly (e.g. paints, geometry).
TBR=
Change-Id: I7c941c7ea12e14b008d846ec13108e66e34dbc73
Reviewed-on: https://skia-review.googlesource.com/91104
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
/*
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* Copyright 2017 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkSGDraw.h"
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#include "SkSGGeometryNode.h"
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#include "SkSGInvalidationController.h"
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#include "SkSGPaintNode.h"
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namespace sksg {
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Draw::Draw(sk_sp<GeometryNode> geometry, sk_sp<PaintNode> paint)
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: fGeometry(std::move(geometry))
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, fPaint(std::move(paint)) {
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fGeometry->addInvalReceiver(this);
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fPaint->addInvalReceiver(this);
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}
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Draw::~Draw() {
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fGeometry->removeInvalReceiver(this);
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fPaint->removeInvalReceiver(this);
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}
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void Draw::onRender(SkCanvas* canvas) const {
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fGeometry->draw(canvas, fPaint->makePaint());
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}
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Node::RevalidationResult Draw::onRevalidate(InvalidationController* ic, const SkMatrix& ctm) {
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SkASSERT(this->hasInval());
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// TODO: adjust bounds for paint
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const auto bounds = fGeometry->revalidate(ic, ctm);
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fPaint->revalidate(ic, ctm);
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// Neither paint nor geometry contribute to damage directly; instead we generate
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// damage here, at the binding point.
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return { bounds, Damage::kForceSelf };
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}
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} // namespace sksg
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