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/*
Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef WebLayerTreeRenderer_h
#define WebLayerTreeRenderer_h
#if USE(UI_SIDE_COMPOSITING)
#include "BackingStore.h"
#include "TextureMapper.h"
#include "TextureMapperBackingStore.h"
#include "WebLayerTreeInfo.h"
#include <WebCore/GraphicsContext.h>
#include <WebCore/GraphicsLayer.h>
#include <WebCore/IntRect.h>
#include <WebCore/IntSize.h>
#include <WebCore/RunLoop.h>
#include <WebCore/Timer.h>
#include <wtf/Functional.h>
#include <wtf/HashSet.h>
#include <wtf/ThreadingPrimitives.h>
namespace WebKit {
class LayerBackingStore;
class LayerTreeHostProxy;
class WebLayerInfo;
class WebLayerUpdateInfo;
class WebLayerTreeRenderer : public ThreadSafeRefCounted<WebLayerTreeRenderer>, public WebCore::GraphicsLayerClient {
public:
WebLayerTreeRenderer(LayerTreeHostProxy*);
virtual ~WebLayerTreeRenderer();
void purgeGLResources();
void paintToCurrentGLContext(const WebCore::TransformationMatrix&, float, const WebCore::FloatRect&);
void paintToGraphicsContext(BackingStore::PlatformGraphicsContext);
void syncRemoteContent();
void setVisibleContentsRectForScaling(const WebCore::IntRect&, float);
void detach();
void appendUpdate(const Function<void()>&);
void updateViewport();
void deleteLayer(WebLayerID);
void setRootLayerID(WebLayerID);
void syncLayerParameters(const WebLayerInfo&);
void createTile(WebLayerID, int, float scale);
void removeTile(WebLayerID, int);
void updateTile(WebLayerID, int, const WebCore::IntRect&, const WebCore::IntRect&, PassRefPtr<ShareableBitmap>);
void flushLayerChanges();
void createImage(int64_t, PassRefPtr<ShareableBitmap>);
void destroyImage(int64_t);
private:
PassOwnPtr<WebCore::GraphicsLayer> createLayer(WebLayerID);
WebCore::GraphicsLayer* layerByID(WebLayerID id) { return (id == InvalidWebLayerID) ? 0 : m_layers.get(id); }
WebCore::GraphicsLayer* rootLayer() { return m_rootLayer.get(); }
// Reimplementations from WebCore::GraphicsLayerClient.
virtual void notifyAnimationStarted(const WebCore::GraphicsLayer*, double) { }
virtual void notifySyncRequired(const WebCore::GraphicsLayer*) { }
virtual bool showDebugBorders(const WebCore::GraphicsLayer*) const { return false; }
virtual bool showRepaintCounter(const WebCore::GraphicsLayer*) const { return false; }
void paintContents(const WebCore::GraphicsLayer*, WebCore::GraphicsContext&, WebCore::GraphicsLayerPaintingPhase, const WebCore::IntRect&) { }
void callOnMainTread(const Function<void()>&);
typedef HashMap<WebLayerID, WebCore::GraphicsLayer*> LayerMap;
WebCore::IntRect m_visibleContentsRect;
float m_contentsScale;
// Render queue can be accessed ony from main thread or updatePaintNode call stack!
Vector<Function<void()> > m_renderQueue;
#if USE(TEXTURE_MAPPER)
OwnPtr<WebCore::TextureMapper> m_textureMapper;
PassRefPtr<LayerBackingStore> getBackingStore(WebLayerID);
HashMap<int64_t, RefPtr<WebCore::TextureMapperBackingStore> > m_directlyCompositedImages;
HashSet<RefPtr<LayerBackingStore> > m_backingStoresWithPendingBuffers;
#endif
void scheduleWebViewUpdate();
void synchronizeViewport();
void assignImageToLayer(WebCore::GraphicsLayer*, int64_t imageID);
void ensureRootLayer();
void ensureLayer(WebLayerID);
void swapBuffers();
void syncAnimations();
void renderNextFrame();
void purgeBackingStores();
LayerTreeHostProxy* m_layerTreeHostProxy;
OwnPtr<WebCore::GraphicsLayer> m_rootLayer;
Vector<WebLayerID> m_layersToDelete;
LayerMap m_layers;
WebLayerID m_rootLayerID;
};
};
#endif // USE(UI_SIDE_COMPOSITING)
#endif // WebLayerTreeRenderer_h
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