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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 CoordinatedBackingStore_h
#define CoordinatedBackingStore_h
#if USE(COORDINATED_GRAPHICS)
#include "TextureMapper.h"
#include "TextureMapperBackingStore.h"
#include "TextureMapperTile.h"
#include <wtf/HashMap.h>
#include <wtf/HashSet.h>
namespace WebCore {
class CoordinatedSurface;
class CoordinatedBackingStoreTile : public TextureMapperTile {
public:
explicit CoordinatedBackingStoreTile(float scale = 1)
: TextureMapperTile(FloatRect())
, m_scale(scale)
{
}
inline float scale() const { return m_scale; }
void swapBuffers(TextureMapper*);
void setBackBuffer(const IntRect&, const IntRect&, PassRefPtr<CoordinatedSurface> buffer, const IntPoint&);
private:
RefPtr<CoordinatedSurface> m_surface;
IntRect m_sourceRect;
IntRect m_tileRect;
IntPoint m_surfaceOffset;
float m_scale;
};
class CoordinatedBackingStore : public TextureMapperBackingStore {
public:
void createTile(uint32_t tileID, float);
void removeTile(uint32_t tileID);
void removeAllTiles();
void updateTile(uint32_t tileID, const IntRect&, const IntRect&, PassRefPtr<CoordinatedSurface>, const IntPoint&);
static PassRefPtr<CoordinatedBackingStore> create() { return adoptRef(new CoordinatedBackingStore); }
void commitTileOperations(TextureMapper*);
PassRefPtr<BitmapTexture> texture() const;
void setSize(const FloatSize&);
virtual void paintToTextureMapper(TextureMapper*, const FloatRect&, const TransformationMatrix&, float);
virtual void drawBorder(TextureMapper*, const Color&, float borderWidth, const FloatRect&, const TransformationMatrix&) override;
virtual void drawRepaintCounter(TextureMapper*, int repaintCount, const Color&, const FloatRect&, const TransformationMatrix&) override;
private:
CoordinatedBackingStore()
: m_scale(1.)
{ }
void paintTilesToTextureMapper(Vector<TextureMapperTile*>&, TextureMapper*, const TransformationMatrix&, float, const FloatRect&);
TransformationMatrix adjustedTransformForRect(const FloatRect&);
FloatRect rect() const { return FloatRect(FloatPoint::zero(), m_size); }
typedef HashMap<uint32_t, CoordinatedBackingStoreTile> CoordinatedBackingStoreTileMap;
CoordinatedBackingStoreTileMap m_tiles;
HashSet<uint32_t> m_tilesToRemove;
// FIXME: m_pendingSize should be removed after the following bug is fixed: https://bugs.webkit.org/show_bug.cgi?id=108294
FloatSize m_pendingSize;
FloatSize m_size;
float m_scale;
};
} // namespace WebCore
#endif // USE(COORDINATED_GRAPHICS)
#endif // CoordinatedBackingStore_h
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