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/*
Copyright (C) 2010 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 CoordinatedGraphicsLayer_h
#define CoordinatedGraphicsLayer_h
#include "CoordinatedGraphicsState.h"
#include "CoordinatedImageBacking.h"
#include "FloatPoint3D.h"
#include "GraphicsLayer.h"
#include "GraphicsLayerTransform.h"
#include "Image.h"
#include "IntSize.h"
#include "TextureMapperAnimation.h"
#include "TextureMapperPlatformLayer.h"
#include "TiledBackingStore.h"
#include "TiledBackingStoreClient.h"
#include "TransformationMatrix.h"
#if USE(GRAPHICS_SURFACE)
#include "GraphicsSurfaceToken.h"
#endif
#include <wtf/text/StringHash.h>
#if USE(COORDINATED_GRAPHICS)
namespace WebCore {
class CoordinatedGraphicsLayer;
class TextureMapperAnimations;
class ScrollableArea;
class CoordinatedGraphicsLayerClient {
public:
virtual bool isFlushingLayerChanges() const = 0;
virtual FloatRect visibleContentsRect() const = 0;
virtual PassRefPtr<CoordinatedImageBacking> createImageBackingIfNeeded(Image*) = 0;
virtual void detachLayer(CoordinatedGraphicsLayer*) = 0;
virtual bool paintToSurface(const IntSize&, CoordinatedSurface::Flags, uint32_t& atlasID, IntPoint&, CoordinatedSurface::Client*) = 0;
virtual void syncLayerState(CoordinatedLayerID, CoordinatedGraphicsLayerState&) = 0;
};
class CoordinatedGraphicsLayer : public GraphicsLayer
, public TiledBackingStoreClient
#if USE(COORDINATED_GRAPHICS_THREADED)
, public TextureMapperPlatformLayer::Client
#endif
, public CoordinatedImageBacking::Host {
public:
explicit CoordinatedGraphicsLayer(Type, GraphicsLayerClient&);
virtual ~CoordinatedGraphicsLayer();
PlatformLayerID primaryLayerID() const override { return id(); }
// Reimplementations from GraphicsLayer.h.
virtual bool setChildren(const Vector<GraphicsLayer*>&) override;
virtual void addChild(GraphicsLayer*) override;
virtual void addChildAtIndex(GraphicsLayer*, int) override;
virtual void addChildAbove(GraphicsLayer*, GraphicsLayer*) override;
virtual void addChildBelow(GraphicsLayer*, GraphicsLayer*) override;
virtual bool replaceChild(GraphicsLayer*, GraphicsLayer*) override;
virtual void removeFromParent() override;
virtual void setPosition(const FloatPoint&) override;
virtual void setAnchorPoint(const FloatPoint3D&) override;
virtual void setSize(const FloatSize&) override;
virtual void setTransform(const TransformationMatrix&) override;
virtual void setChildrenTransform(const TransformationMatrix&) override;
virtual void setPreserves3D(bool) override;
virtual void setMasksToBounds(bool) override;
virtual void setDrawsContent(bool) override;
virtual void setContentsVisible(bool) override;
virtual void setContentsOpaque(bool) override;
virtual void setBackfaceVisibility(bool) override;
virtual void setOpacity(float) override;
virtual void setContentsRect(const FloatRect&) override;
virtual void setContentsTilePhase(const FloatSize&) override;
virtual void setContentsTileSize(const FloatSize&) override;
virtual void setContentsToImage(Image*) override;
virtual void setContentsToSolidColor(const Color&) override;
virtual void setShowDebugBorder(bool) override;
virtual void setShowRepaintCounter(bool) override;
virtual bool shouldDirectlyCompositeImage(Image*) const override;
virtual void setContentsToPlatformLayer(PlatformLayer*, ContentsLayerPurpose) override;
virtual void setMaskLayer(GraphicsLayer*) override;
virtual void setReplicatedByLayer(GraphicsLayer*) override;
virtual void setNeedsDisplay() override;
virtual void setNeedsDisplayInRect(const FloatRect&, ShouldClipToLayer = ClipToLayer) override;
virtual void setContentsNeedsDisplay() override;
virtual void deviceOrPageScaleFactorChanged() override;
virtual void flushCompositingState(const FloatRect&, bool) override;
virtual void flushCompositingStateForThisLayerOnly(bool) override;
virtual bool setFilters(const FilterOperations&) override;
virtual bool addAnimation(const KeyframeValueList&, const FloatSize&, const Animation*, const String&, double) override;
virtual void pauseAnimation(const String&, double) override;
virtual void removeAnimation(const String&) override;
virtual void suspendAnimations(double time) override;
virtual void resumeAnimations() override;
virtual bool usesContentsLayer() const override { return m_platformLayer || m_compositedImage; }
void syncPendingStateChangesIncludingSubLayers();
void updateContentBuffersIncludingSubLayers();
FloatPoint computePositionRelativeToBase();
void computePixelAlignment(FloatPoint& position, FloatSize&, FloatPoint3D& anchorPoint, FloatSize& alignmentOffset);
void setVisibleContentRectTrajectoryVector(const FloatPoint&);
void setScrollableArea(ScrollableArea*);
bool isScrollable() const { return !!m_scrollableArea; }
void commitScrollOffset(const IntSize&);
CoordinatedLayerID id() const { return m_id; }
void setFixedToViewport(bool isFixed);
IntRect coverRect() const { return m_mainBackingStore ? m_mainBackingStore->mapToContents(m_mainBackingStore->coverRect()) : IntRect(); }
IntRect transformedVisibleRect();
// TiledBackingStoreClient
virtual void tiledBackingStorePaint(GraphicsContext&, const IntRect&) override;
virtual void didUpdateTileBuffers() override;
virtual void tiledBackingStoreHasPendingTileCreation() override;
virtual void createTile(uint32_t tileID, float) override;
virtual void updateTile(uint32_t tileID, const SurfaceUpdateInfo&, const IntRect&) override;
virtual void removeTile(uint32_t tileID) override;
virtual bool paintToSurface(const IntSize&, uint32_t& /* atlasID */, IntPoint&, CoordinatedSurface::Client*) override;
void setCoordinator(CoordinatedGraphicsLayerClient*);
void setNeedsVisibleRectAdjustment();
void purgeBackingStores();
static void setShouldSupportContentsTiling(bool);
CoordinatedGraphicsLayer* findFirstDescendantWithContentsRecursively();
private:
#if USE(GRAPHICS_SURFACE)
enum PendingPlatformLayerOperation {
None = 0x00,
CreatePlatformLayer = 0x01,
DestroyPlatformLayer = 0x02,
SyncPlatformLayer = 0x04,
CreateAndSyncPlatformLayer = CreatePlatformLayer | SyncPlatformLayer,
RecreatePlatformLayer = CreateAndSyncPlatformLayer | DestroyPlatformLayer
};
void destroyPlatformLayerIfNeeded();
void createPlatformLayerIfNeeded();
#endif
void syncPlatformLayer();
#if USE(COORDINATED_GRAPHICS_THREADED)
void platformLayerWillBeDestroyed();
void setPlatformLayerNeedsDisplay();
#endif
virtual void setDebugBorder(const Color&, float width) override;
bool fixedToViewport() const { return m_fixedToViewport; }
void didChangeLayerState();
void didChangeAnimations();
void didChangeGeometry();
void didChangeChildren();
void didChangeFilters();
void didChangeImageBacking();
void resetLayerState();
void syncLayerState();
void syncAnimations();
void syncChildren();
void syncFilters();
void syncImageBacking();
void computeTransformedVisibleRect();
void updateContentBuffers();
void createBackingStore();
void releaseImageBackingIfNeeded();
bool notifyFlushRequired();
// CoordinatedImageBacking::Host
virtual bool imageBackingVisible() override;
bool shouldHaveBackingStore() const;
bool selfOrAncestorHasActiveTransformAnimation() const;
bool selfOrAncestorHaveNonAffineTransforms();
void adjustContentsScale();
void setShouldUpdateVisibleRect();
float effectiveContentsScale();
void animationStartedTimerFired();
CoordinatedLayerID m_id;
CoordinatedGraphicsLayerState m_layerState;
GraphicsLayerTransform m_layerTransform;
TransformationMatrix m_cachedInverseTransform;
FloatSize m_pixelAlignmentOffset;
FloatSize m_adjustedSize;
FloatPoint m_adjustedPosition;
FloatPoint3D m_adjustedAnchorPoint;
#ifndef NDEBUG
bool m_isPurging;
#endif
bool m_shouldUpdateVisibleRect: 1;
bool m_shouldSyncLayerState: 1;
bool m_shouldSyncChildren: 1;
bool m_shouldSyncFilters: 1;
bool m_shouldSyncImageBacking: 1;
bool m_shouldSyncAnimations: 1;
bool m_fixedToViewport : 1;
bool m_movingVisibleRect : 1;
bool m_pendingContentsScaleAdjustment : 1;
bool m_pendingVisibleRectAdjustment : 1;
#if USE(GRAPHICS_SURFACE)
bool m_isValidPlatformLayer : 1;
unsigned m_pendingPlatformLayerOperation : 3;
#endif
#if USE(COORDINATED_GRAPHICS_THREADED)
bool m_shouldSyncPlatformLayer : 1;
#endif
CoordinatedGraphicsLayerClient* m_coordinator;
std::unique_ptr<TiledBackingStore> m_mainBackingStore;
std::unique_ptr<TiledBackingStore> m_previousBackingStore;
RefPtr<Image> m_compositedImage;
NativeImagePtr m_compositedNativeImagePtr;
RefPtr<CoordinatedImageBacking> m_coordinatedImageBacking;
PlatformLayer* m_platformLayer;
#if USE(GRAPHICS_SURFACE)
IntSize m_platformLayerSize;
GraphicsSurfaceToken m_platformLayerToken;
#endif
Timer m_animationStartedTimer;
TextureMapperAnimations m_animations;
double m_lastAnimationStartTime;
ScrollableArea* m_scrollableArea;
};
CoordinatedGraphicsLayer* toCoordinatedGraphicsLayer(GraphicsLayer*);
} // namespace WebCore
#endif // USE(COORDINATED_GRAPHICS)
#endif // CoordinatedGraphicsLayer_h
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