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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 TextureMapperBackingStore_h
#define TextureMapperBackingStore_h
#if USE(ACCELERATED_COMPOSITING) && USE(TEXTURE_MAPPER)
#include "FloatRect.h"
#include "Image.h"
#include "TextureMapper.h"
#include "TextureMapperPlatformLayer.h"
#include <wtf/RefPtr.h>
#if USE(GRAPHICS_SURFACE)
#include "GraphicsSurface.h"
#endif
namespace WebCore {
class GraphicsLayer;
class TextureMapperBackingStore : public TextureMapperPlatformLayer, public RefCounted<TextureMapperBackingStore> {
public:
virtual PassRefPtr<BitmapTexture> texture() const = 0;
virtual void paintToTextureMapper(TextureMapper*, const FloatRect&, const TransformationMatrix&, float) = 0;
virtual void drawRepaintCounter(TextureMapper*, int /* repaintCount */, const Color&, const FloatRect&, const TransformationMatrix&) { }
virtual ~TextureMapperBackingStore() { }
protected:
static unsigned calculateExposedTileEdges(const FloatRect& totalRect, const FloatRect& tileRect);
};
}
#endif
#endif // TextureMapperBackingStore_h
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