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// Copyright 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef TiledLayerChromium_h
#define TiledLayerChromium_h
#if USE(ACCELERATED_COMPOSITING)
#include "CCLayerTilingData.h"
#include "LayerChromium.h"
#include "LayerTextureUpdater.h"
namespace cc {
class UpdatableTile;
class TiledLayerChromium : public LayerChromium {
public:
enum TilingOption { AlwaysTile, NeverTile, AutoTile };
virtual ~TiledLayerChromium();
virtual void setIsMask(bool) OVERRIDE;
virtual void pushPropertiesTo(CCLayerImpl*) OVERRIDE;
virtual bool drawsContent() const OVERRIDE;
virtual bool needsContentsScale() const OVERRIDE;
virtual IntSize contentBounds() const OVERRIDE;
virtual void setNeedsDisplayRect(const FloatRect&) OVERRIDE;
virtual void setUseLCDText(bool) OVERRIDE;
virtual void setLayerTreeHost(CCLayerTreeHost*) OVERRIDE;
virtual void setTexturePriorities(const CCPriorityCalculator&) OVERRIDE;
virtual Region visibleContentOpaqueRegion() const OVERRIDE;
virtual void update(CCTextureUpdateQueue&, const CCOcclusionTracker*, CCRenderingStats&) OVERRIDE;
protected:
TiledLayerChromium();
void updateTileSizeAndTilingOption();
void updateBounds();
// Exposed to subclasses for testing.
void setTileSize(const IntSize&);
void setTextureFormat(GC3Denum textureFormat) { m_textureFormat = textureFormat; }
void setBorderTexelOption(CCLayerTilingData::BorderTexelOption);
void setSampledTexelFormat(LayerTextureUpdater::SampledTexelFormat sampledTexelFormat) { m_sampledTexelFormat = sampledTexelFormat; }
size_t numPaintedTiles() { return m_tiler->tiles().size(); }
virtual LayerTextureUpdater* textureUpdater() const = 0;
virtual void createTextureUpdaterIfNeeded() = 0;
// Set invalidations to be potentially repainted during update().
void invalidateContentRect(const IntRect& contentRect);
// Reset state on tiles that will be used for updating the layer.
void resetUpdateState();
// After preparing an update, returns true if more painting is needed.
bool needsIdlePaint();
IntRect idlePaintRect();
bool skipsDraw() const { return m_skipsDraw; }
// Virtual for testing
virtual CCPrioritizedTextureManager* textureManager() const;
private:
virtual PassOwnPtr<CCLayerImpl> createCCLayerImpl() OVERRIDE;
void createTilerIfNeeded();
void setTilingOption(TilingOption);
bool tileOnlyNeedsPartialUpdate(UpdatableTile*);
bool tileNeedsBufferedUpdate(UpdatableTile*);
void markOcclusionsAndRequestTextures(int left, int top, int right, int bottom, const CCOcclusionTracker*);
bool updateTiles(int left, int top, int right, int bottom, CCTextureUpdateQueue&, const CCOcclusionTracker*, CCRenderingStats&, bool& didPaint);
bool haveTexturesForTiles(int left, int top, int right, int bottom, bool ignoreOcclusions);
IntRect markTilesForUpdate(int left, int top, int right, int bottom, bool ignoreOcclusions);
void updateTileTextures(const IntRect& paintRect, int left, int top, int right, int bottom, CCTextureUpdateQueue&, const CCOcclusionTracker*, CCRenderingStats&);
UpdatableTile* tileAt(int, int) const;
UpdatableTile* createTile(int, int);
GC3Denum m_textureFormat;
bool m_skipsDraw;
bool m_failedUpdate;
LayerTextureUpdater::SampledTexelFormat m_sampledTexelFormat;
TilingOption m_tilingOption;
OwnPtr<CCLayerTilingData> m_tiler;
};
}
#endif // USE(ACCELERATED_COMPOSITING)
#endif
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