1/* 2 Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies) 3 4 This library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Library General Public 6 License as published by the Free Software Foundation; either 7 version 2 of the License, or (at your option) any later version. 8 9 This library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Library General Public License for more details. 13 14 You should have received a copy of the GNU Library General Public License 15 along with this library; see the file COPYING.LIB. If not, write to 16 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 Boston, MA 02110-1301, USA. 18 */ 19 20#ifndef TextureMapperBackingStore_h 21#define TextureMapperBackingStore_h 22 23#if USE(TEXTURE_MAPPER) 24 25#include "FloatRect.h" 26#include "Image.h" 27#include "TextureMapper.h" 28#include "TextureMapperPlatformLayer.h" 29#include <wtf/RefPtr.h> 30 31#if USE(GRAPHICS_SURFACE) 32#include "GraphicsSurface.h" 33#endif 34 35namespace WebCore { 36 37class GraphicsLayer; 38 39class TextureMapperBackingStore : public TextureMapperPlatformLayer, public RefCounted<TextureMapperBackingStore> { 40public: 41 virtual PassRefPtr<BitmapTexture> texture() const = 0; 42 virtual void paintToTextureMapper(TextureMapper*, const FloatRect&, const TransformationMatrix&, float) = 0; 43 virtual void drawRepaintCounter(TextureMapper*, int /* repaintCount */, const Color&, const FloatRect&, const TransformationMatrix&) { } 44 virtual ~TextureMapperBackingStore() { } 45 46protected: 47 static unsigned calculateExposedTileEdges(const FloatRect& totalRect, const FloatRect& tileRect); 48}; 49 50} 51#endif 52 53#endif // TextureMapperBackingStore_h 54