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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 LayerTreeRenderer_h
#define LayerTreeRenderer_h
#if USE(COORDINATED_GRAPHICS)
#include "BackingStore.h"
#include "ShareableSurface.h"
#include "TextureMapper.h"
#include "TextureMapperBackingStore.h"
#include "WebLayerTreeInfo.h"
#include <WebCore/GraphicsContext.h>
#include <WebCore/GraphicsLayer.h>
#include <WebCore/GraphicsSurface.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 CoordinatedBackingStore;
class LayerTreeCoordinatorProxy;
class WebLayerInfo;
class WebLayerUpdateInfo;
class LayerTreeRenderer : public ThreadSafeRefCounted<LayerTreeRenderer>, public WebCore::GraphicsLayerClient {
public:
struct TileUpdate {
WebCore::IntRect sourceRect;
WebCore::IntRect targetRect;
RefPtr<ShareableSurface> surface;
WebCore::IntPoint offset;
TileUpdate(const WebCore::IntRect& source, const WebCore::IntRect& target, PassRefPtr<ShareableSurface> newSurface, const WebCore::IntPoint& newOffset)
: sourceRect(source)
, targetRect(target)
, surface(newSurface)
, offset(newOffset)
{
}
};
LayerTreeRenderer(LayerTreeCoordinatorProxy*);
virtual ~LayerTreeRenderer();
void purgeGLResources();
void paintToCurrentGLContext(const WebCore::TransformationMatrix&, float, const WebCore::FloatRect&, WebCore::TextureMapper::PaintFlags = 0);
void paintToGraphicsContext(BackingStore::PlatformGraphicsContext);
void syncRemoteContent();
void setContentsSize(const WebCore::FloatSize&);
void setVisibleContentsRect(const WebCore::FloatRect&);
void didChangeScrollPosition(const WebCore::IntPoint& position);
#if USE(GRAPHICS_SURFACE)
void syncCanvas(uint32_t id, const WebCore::IntSize& canvasSize, const WebCore::GraphicsSurfaceToken&, uint32_t frontBuffer);
#endif
void detach();
void appendUpdate(const Function<void()>&);
void updateViewport();
void setActive(bool);
void deleteLayer(WebLayerID);
void setRootLayerID(WebLayerID);
void setLayerChildren(WebLayerID, const Vector<WebLayerID>&);
void setLayerState(WebLayerID, const WebLayerInfo&);
#if ENABLE(CSS_FILTERS)
void setLayerFilters(WebLayerID, const WebCore::FilterOperations&);
#endif
void createTile(WebLayerID, int, float scale);
void removeTile(WebLayerID, int);
void updateTile(WebLayerID, int, const TileUpdate&);
void flushLayerChanges();
void createImage(int64_t, PassRefPtr<ShareableBitmap>);
void destroyImage(int64_t);
void setAnimatedOpacity(uint32_t, float);
void setAnimatedTransform(uint32_t, const WebCore::TransformationMatrix&);
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 notifyFlushRequired(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 dispatchOnMainThread(const Function<void()>&);
void adjustPositionForFixedLayers();
typedef HashMap<WebLayerID, WebCore::GraphicsLayer*> LayerMap;
WebCore::FloatSize m_contentsSize;
WebCore::FloatRect m_visibleContentsRect;
// 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<CoordinatedBackingStore> getBackingStore(WebLayerID);
HashMap<int64_t, RefPtr<WebCore::TextureMapperBackingStore> > m_directlyCompositedImages;
HashSet<RefPtr<CoordinatedBackingStore> > m_backingStoresWithPendingBuffers;
#endif
#if USE(GRAPHICS_SURFACE)
typedef HashMap<WebLayerID, RefPtr<WebCore::TextureMapperSurfaceBackingStore> > SurfaceBackingStoreMap;
SurfaceBackingStoreMap m_surfaceBackingStores;
#endif
void scheduleWebViewUpdate();
void synchronizeViewport();
void assignImageToLayer(WebCore::GraphicsLayer*, int64_t imageID);
void ensureRootLayer();
void ensureLayer(WebLayerID);
void commitTileOperations();
void syncAnimations();
void renderNextFrame();
void purgeBackingStores();
LayerTreeCoordinatorProxy* m_layerTreeCoordinatorProxy;
OwnPtr<WebCore::GraphicsLayer> m_rootLayer;
Vector<WebLayerID> m_layersToDelete;
LayerMap m_layers;
LayerMap m_fixedLayers;
WebLayerID m_rootLayerID;
WebCore::IntPoint m_renderedContentsScrollPosition;
WebCore::IntPoint m_pendingRenderedContentsScrollPosition;
bool m_isActive;
};
};
#endif // USE(COORDINATED_GRAPHICS)
#endif // LayerTreeRenderer_h
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