38ea40eb75
TBR= Change-Id: Ibf65efc69031f8f6e19f4f28cccab29c357e704d Reviewed-on: https://skia-review.googlesource.com/101540 Reviewed-by: Florin Malita <fmalita@chromium.org> Commit-Queue: Florin Malita <fmalita@chromium.org>
51 lines
1.2 KiB
C++
51 lines
1.2 KiB
C++
/*
|
|
* Copyright 2018 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#include "SkSGClipEffect.h"
|
|
|
|
#include "SkCanvas.h"
|
|
#include "SkPath.h"
|
|
#include "SkSGGeometryNode.h"
|
|
|
|
namespace sksg {
|
|
|
|
ClipEffect::ClipEffect(sk_sp<RenderNode> child, sk_sp<GeometryNode> clip, bool aa)
|
|
: INHERITED(std::move(child))
|
|
, fClipNode(std::move(clip))
|
|
, fAntiAlias(aa) {
|
|
this->observeInval(fClipNode);
|
|
}
|
|
|
|
ClipEffect::~ClipEffect() {
|
|
this->unobserveInval(fClipNode);
|
|
}
|
|
|
|
void ClipEffect::onRender(SkCanvas* canvas) const {
|
|
if (this->bounds().isEmpty())
|
|
return;
|
|
|
|
SkAutoCanvasRestore acr(canvas, !fNoop);
|
|
if (!fNoop) {
|
|
fClipNode->clip(canvas, fAntiAlias);
|
|
}
|
|
|
|
this->INHERITED::onRender(canvas);
|
|
}
|
|
|
|
SkRect ClipEffect::onRevalidate(InvalidationController* ic, const SkMatrix& ctm) {
|
|
SkASSERT(this->hasInval());
|
|
|
|
const auto clipBounds = fClipNode->revalidate(ic, ctm);
|
|
auto childBounds = this->INHERITED::onRevalidate(ic, ctm);
|
|
|
|
fNoop = fClipNode->asPath().conservativelyContainsRect(childBounds);
|
|
|
|
return childBounds.intersect(clipBounds) ? childBounds : SkRect::MakeEmpty();
|
|
}
|
|
|
|
} // namespace sksg
|