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/*
* Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies)
*
* 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 CoordinatedTile_h
#define CoordinatedTile_h
#if USE(TILED_BACKING_STORE)
#include "Tile.h"
#include "TiledBackingStore.h"
#include "WebCore/IntRect.h"
namespace WebCore {
class ImageBuffer;
class TiledBackingStore;
}
namespace WebKit {
class CoordinatedTileClient;
class SurfaceUpdateInfo;
class CoordinatedTile : public WebCore::Tile {
public:
static PassRefPtr<Tile> create(CoordinatedTileClient* client, WebCore::TiledBackingStore* tiledBackingStore, const Coordinate& tileCoordinate) { return adoptRef(new CoordinatedTile(client, tiledBackingStore, tileCoordinate)); }
~CoordinatedTile();
bool isDirty() const;
void invalidate(const WebCore::IntRect&);
Vector<WebCore::IntRect> updateBackBuffer();
void swapBackBufferToFront();
bool isReadyToPaint() const;
void paint(WebCore::GraphicsContext*, const WebCore::IntRect&);
const Coordinate& coordinate() const { return m_coordinate; }
const WebCore::IntRect& rect() const { return m_rect; }
void resize(const WebCore::IntSize&);
private:
CoordinatedTile(CoordinatedTileClient*, WebCore::TiledBackingStore*, const Coordinate&);
CoordinatedTileClient* m_client;
WebCore::TiledBackingStore* m_tiledBackingStore;
Coordinate m_coordinate;
WebCore::IntRect m_rect;
int m_ID;
WebCore::IntRect m_dirtyRect;
OwnPtr<WebCore::ImageBuffer> m_localBuffer;
};
class CoordinatedTileClient {
public:
virtual ~CoordinatedTileClient() { }
virtual void createTile(int tileID, const SurfaceUpdateInfo&, const WebCore::IntRect&) = 0;
virtual void updateTile(int tileID, const SurfaceUpdateInfo&, const WebCore::IntRect&) = 0;
virtual void removeTile(int tileID) = 0;
virtual PassOwnPtr<WebCore::GraphicsContext> beginContentUpdate(const WebCore::IntSize&, int& atlasID, WebCore::IntPoint&) = 0;
};
class CoordinatedTileBackend : public WebCore::TiledBackingStoreBackend {
public:
static PassOwnPtr<WebCore::TiledBackingStoreBackend> create(CoordinatedTileClient* client) { return adoptPtr(new CoordinatedTileBackend(client)); }
PassRefPtr<WebCore::Tile> createTile(WebCore::TiledBackingStore*, const WebCore::Tile::Coordinate&);
void paintCheckerPattern(WebCore::GraphicsContext*, const WebCore::FloatRect&);
private:
explicit CoordinatedTileBackend(CoordinatedTileClient*);
CoordinatedTileClient* m_client;
};
} // namespace WebKit
#endif // USE(TILED_BACKING_STORE)
#endif // CoordinatedTile
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