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/*
* Copyright (C) 2021 Sony Interactive Entertainment Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if USE(GRAPHICS_LAYER_WC)
#include "WCUpdateInfo.h"
#include <WebCore/GraphicsLayerContentsDisplayDelegate.h>
#include <wtf/DoublyLinkedList.h>
namespace WebCore {
class TransformState;
}
namespace WebKit {
class WCTiledBacking;
class GraphicsLayerWC final : public WebCore::GraphicsLayer, public DoublyLinkedListNode<GraphicsLayerWC> {
public:
struct Observer {
virtual void graphicsLayerAdded(GraphicsLayerWC&) = 0;
virtual void graphicsLayerRemoved(GraphicsLayerWC&) = 0;
virtual void commitLayerUpdateInfo(WCLayerUpdateInfo&&) = 0;
virtual RefPtr<WebCore::ImageBuffer> createImageBuffer(WebCore::FloatSize, float deviceScaleFactor) = 0;
};
GraphicsLayerWC(Type layerType, WebCore::GraphicsLayerClient&, Observer&);
~GraphicsLayerWC() override;
void clearObserver() { m_observer = nullptr; }
// GraphicsLayer
std::optional<WebCore::PlatformLayerIdentifier> primaryLayerID() const override;
void setNeedsDisplay() override;
void setNeedsDisplayInRect(const WebCore::FloatRect&, ShouldClipToLayer) override;
void setContentsNeedsDisplay() override;
bool setChildren(Vector<Ref<GraphicsLayer>>&&) override;
void addChild(Ref<GraphicsLayer>&&) override;
void addChildAtIndex(Ref<GraphicsLayer>&&, int index) override;
void addChildAbove(Ref<GraphicsLayer>&&, GraphicsLayer* sibling) override;
void addChildBelow(Ref<GraphicsLayer>&&, GraphicsLayer* sibling) override;
bool replaceChild(GraphicsLayer* oldChild, Ref<GraphicsLayer>&& newChild) override;
void willModifyChildren() override;
void setMaskLayer(RefPtr<GraphicsLayer>&&) override;
void setReplicatedLayer(GraphicsLayer*) override;
void setReplicatedByLayer(RefPtr<GraphicsLayer>&&) override;
void setPosition(const WebCore::FloatPoint&) override;
void syncPosition(const WebCore::FloatPoint&) override;
void setAnchorPoint(const WebCore::FloatPoint3D&) override;
void setSize(const WebCore::FloatSize&) override;
void setBoundsOrigin(const WebCore::FloatPoint&) override;
void syncBoundsOrigin(const WebCore::FloatPoint&) override;
void setTransform(const WebCore::TransformationMatrix&) override;
void setChildrenTransform(const WebCore::TransformationMatrix&) override;
void setPreserves3D(bool) override;
void setMasksToBounds(bool) override;
void setBackgroundColor(const WebCore::Color&) override;
void setOpacity(float) override;
void setContentsRect(const WebCore::FloatRect&) override;
void setContentsClippingRect(const WebCore::FloatRoundedRect&) override;
void setContentsRectClipsDescendants(bool) override;
void setDrawsContent(bool) override;
void setContentsVisible(bool) override;
void setBackfaceVisibility(bool) override;
void setContentsToSolidColor(const WebCore::Color&) override;
void setContentsToPlatformLayer(PlatformLayer*, ContentsLayerPurpose) override;
void setContentsToPlatformLayerHost(WebCore::LayerHostingContextIdentifier) override;
void setContentsDisplayDelegate(RefPtr<WebCore::GraphicsLayerContentsDisplayDelegate>&&, ContentsLayerPurpose) override;
bool shouldDirectlyCompositeImage(WebCore::Image*) const override { return false; }
bool usesContentsLayer() const override;
void setShowDebugBorder(bool) override;
void setDebugBorder(const WebCore::Color&, float width) override;
void setShowRepaintCounter(bool) override;
bool setFilters(const WebCore::FilterOperations&) override;
bool setBackdropFilters(const WebCore::FilterOperations&) override;
void setBackdropFiltersRect(const WebCore::FloatRoundedRect&) override;
void flushCompositingState(const WebCore::FloatRect& clipRect) override;
void flushCompositingStateForThisLayerOnly() override;
WebCore::TiledBacking* tiledBacking() const override;
protected:
friend WCTiledBacking;
RefPtr<WebCore::ImageBuffer> createImageBuffer(WebCore::FloatSize, float deviceScaleFactor);
private:
struct VisibleAndCoverageRects {
WTF_MAKE_STRUCT_FAST_ALLOCATED;
WebCore::FloatRect visibleRect;
WebCore::FloatRect coverageRect;
WebCore::TransformationMatrix animatingTransform;
};
enum ScheduleFlushOrNot { ScheduleFlush, DontScheduleFlush };
void noteLayerPropertyChanged(OptionSet<WCLayerChange>, ScheduleFlushOrNot = ScheduleFlush);
WebCore::TransformationMatrix transformByApplyingAnchorPoint(const WebCore::TransformationMatrix&) const;
WebCore::TransformationMatrix layerTransform(const WebCore::FloatPoint&, const WebCore::TransformationMatrix* = nullptr) const;
VisibleAndCoverageRects computeVisibleAndCoverageRect(WebCore::TransformState&, bool preserves3D) const;
void recursiveCommitChanges(const WebCore::TransformState&);
friend class WTF::DoublyLinkedListNode<GraphicsLayerWC>;
GraphicsLayerWC* m_prev;
GraphicsLayerWC* m_next;
WebCore::PlatformLayerIdentifier m_layerID { WebCore::PlatformLayerIdentifier::generate() };
Observer* m_observer;
std::unique_ptr<WCTiledBacking> m_tiledBacking;
PlatformLayer* m_platformLayer { nullptr };
Markable<WebCore::LayerHostingContextIdentifier> m_hostIdentifier;
WebCore::Color m_solidColor;
WebCore::Color m_debugBorderColor;
OptionSet<WCLayerChange> m_uncommittedChanges;
float m_debugBorderWidth { 0 };
};
} // namespace WebKit
#endif // USE(GRAPHICS_LAYER_WC)
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