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/*
* Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies)
* Copyright (C) 2013 Company 100, Inc. All rights reserved.
*
* 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. AND ITS CONTRIBUTORS ``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 ITS 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.
*/
#ifndef CompositingCoordinator_h
#define CompositingCoordinator_h
#if USE(COORDINATED_GRAPHICS)
#include "UpdateAtlas.h"
#include <WebCore/CoordinatedGraphicsLayer.h>
#include <WebCore/CoordinatedGraphicsState.h>
#include <WebCore/CoordinatedImageBacking.h>
#include <WebCore/FloatPoint.h>
#include <WebCore/GraphicsLayerClient.h>
#include <WebCore/GraphicsLayerFactory.h>
#include <WebCore/IntRect.h>
namespace WebCore {
class Page;
class GraphicsContext;
class GraphicsLayer;
class CoordinatedSurface;
}
namespace WebKit {
class CompositingCoordinator final : public WebCore::GraphicsLayerClient
, public WebCore::CoordinatedGraphicsLayerClient
, public WebCore::CoordinatedImageBacking::Client
, public UpdateAtlas::Client
, public WebCore::GraphicsLayerFactory {
WTF_MAKE_NONCOPYABLE(CompositingCoordinator);
public:
class Client {
public:
virtual void didFlushRootLayer(const WebCore::FloatRect& visibleContentRect) = 0;
virtual void notifyFlushRequired() = 0;
virtual void commitSceneState(const WebCore::CoordinatedGraphicsState&) = 0;
virtual void paintLayerContents(const WebCore::GraphicsLayer*, WebCore::GraphicsContext&, const WebCore::IntRect& clipRect) = 0;
virtual void releaseUpdateAtlases(const Vector<uint32_t>&) = 0;
};
CompositingCoordinator(WebCore::Page*, CompositingCoordinator::Client&);
virtual ~CompositingCoordinator();
void invalidate();
void clearUpdateAtlases();
void setRootCompositingLayer(WebCore::GraphicsLayer*);
void setViewOverlayRootLayer(WebCore::GraphicsLayer*);
void sizeDidChange(const WebCore::IntSize&);
void deviceOrPageScaleFactorChanged();
void setVisibleContentsRect(const WebCore::FloatRect&, const WebCore::FloatPoint&);
void renderNextFrame();
void commitScrollOffset(uint32_t layerID, const WebCore::IntSize& offset);
void createRootLayer(const WebCore::IntSize&);
WebCore::GraphicsLayer* rootLayer() const { return m_rootLayer.get(); }
WebCore::GraphicsLayer* rootCompositingLayer() const { return m_rootCompositingLayer; }
WebCore::CoordinatedGraphicsLayer* mainContentsLayer();
void forceFrameSync() { m_shouldSyncFrame = true; }
bool flushPendingLayerChanges();
WebCore::CoordinatedGraphicsState& state() { return m_state; }
void syncDisplayState();
double nextAnimationServiceTime() const;
private:
enum ReleaseAtlasPolicy {
ReleaseInactive,
ReleaseUnused
};
// GraphicsLayerClient
void notifyAnimationStarted(const WebCore::GraphicsLayer*, const String&, double time) override;
void notifyFlushRequired(const WebCore::GraphicsLayer*) override;
void paintContents(const WebCore::GraphicsLayer*, WebCore::GraphicsContext&, WebCore::GraphicsLayerPaintingPhase, const WebCore::FloatRect& clipRect, WebCore::GraphicsLayerPaintBehavior) override;
float deviceScaleFactor() const override;
float pageScaleFactor() const override;
// CoordinatedImageBacking::Client
void createImageBacking(WebCore::CoordinatedImageBackingID) override;
void updateImageBacking(WebCore::CoordinatedImageBackingID, RefPtr<WebCore::CoordinatedSurface>&&) override;
void clearImageBackingContents(WebCore::CoordinatedImageBackingID) override;
void removeImageBacking(WebCore::CoordinatedImageBackingID) override;
// CoordinatedGraphicsLayerClient
bool isFlushingLayerChanges() const override { return m_isFlushingLayerChanges; }
WebCore::FloatRect visibleContentsRect() const override;
Ref<WebCore::CoordinatedImageBacking> createImageBackingIfNeeded(WebCore::Image&) override;
void detachLayer(WebCore::CoordinatedGraphicsLayer*) override;
bool paintToSurface(const WebCore::IntSize&, WebCore::CoordinatedSurface::Flags, uint32_t& /* atlasID */, WebCore::IntPoint&, WebCore::CoordinatedSurface::Client&) override;
void syncLayerState(WebCore::CoordinatedLayerID, WebCore::CoordinatedGraphicsLayerState&) override;
// UpdateAtlas::Client
void createUpdateAtlas(uint32_t atlasID, RefPtr<WebCore::CoordinatedSurface>&&) override;
void removeUpdateAtlas(uint32_t atlasID) override;
// GraphicsLayerFactory
std::unique_ptr<WebCore::GraphicsLayer> createGraphicsLayer(WebCore::GraphicsLayer::Type, WebCore::GraphicsLayerClient&) override;
void initializeRootCompositingLayerIfNeeded();
void flushPendingImageBackingChanges();
void clearPendingStateChanges();
void purgeBackingStores();
void scheduleReleaseInactiveAtlases();
void releaseInactiveAtlasesTimerFired();
void releaseAtlases(ReleaseAtlasPolicy);
double timestamp() const;
WebCore::Page* m_page;
CompositingCoordinator::Client& m_client;
std::unique_ptr<WebCore::GraphicsLayer> m_rootLayer;
WebCore::GraphicsLayer* m_rootCompositingLayer { nullptr };
WebCore::GraphicsLayer* m_overlayCompositingLayer { nullptr };
WebCore::CoordinatedGraphicsState m_state;
typedef HashMap<WebCore::CoordinatedLayerID, WebCore::CoordinatedGraphicsLayer*> LayerMap;
LayerMap m_registeredLayers;
typedef HashMap<WebCore::CoordinatedImageBackingID, RefPtr<WebCore::CoordinatedImageBacking> > ImageBackingMap;
ImageBackingMap m_imageBackings;
Vector<std::unique_ptr<UpdateAtlas>> m_updateAtlases;
Vector<uint32_t> m_atlasesToRemove;
// We don't send the messages related to releasing resources to renderer during purging, because renderer already had removed all resources.
bool m_isDestructing { false };
bool m_isPurging { false };
bool m_isFlushingLayerChanges { false };
bool m_shouldSyncFrame { false };
bool m_didInitializeRootCompositingLayer { false };
WebCore::FloatRect m_visibleContentsRect;
RunLoop::Timer<CompositingCoordinator> m_releaseInactiveAtlasesTimer;
double m_lastAnimationServiceTime { 0 };
};
}
#endif // namespace WebKit
#endif // CompositingCoordinator_h
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