| /* |
| 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 <wtf/HashMap.h> |
| #include <wtf/HashSet.h> |
| |
| namespace WebKit { |
| |
| class ShareableSurface; |
| |
| class CoordinatedBackingStoreTile : public WebCore::TextureMapperTile { |
| public: |
| CoordinatedBackingStoreTile(float scale = 1) |
| : TextureMapperTile(WebCore::FloatRect()) |
| , m_scale(scale) |
| , m_repaintCount(0) |
| { |
| } |
| |
| inline float scale() const { return m_scale; } |
| inline void incrementRepaintCount() { ++m_repaintCount; } |
| inline int repaintCount() const { return m_repaintCount; } |
| void swapBuffers(WebCore::TextureMapper*); |
| void setBackBuffer(const WebCore::IntRect&, const WebCore::IntRect&, PassRefPtr<ShareableSurface> buffer, const WebCore::IntPoint&); |
| |
| private: |
| RefPtr<ShareableSurface> m_surface; |
| WebCore::IntRect m_sourceRect; |
| WebCore::IntRect m_tileRect; |
| WebCore::IntPoint m_surfaceOffset; |
| float m_scale; |
| int m_repaintCount; |
| }; |
| |
| class CoordinatedBackingStore : public WebCore::TextureMapperBackingStore { |
| public: |
| void createTile(int, float); |
| void removeTile(int); |
| void updateTile(int, const WebCore::IntRect&, const WebCore::IntRect&, PassRefPtr<ShareableSurface>, const WebCore::IntPoint&); |
| bool isEmpty() const; |
| static PassRefPtr<CoordinatedBackingStore> create() { return adoptRef(new CoordinatedBackingStore); } |
| void commitTileOperations(WebCore::TextureMapper*); |
| PassRefPtr<WebCore::BitmapTexture> texture() const; |
| void setSize(const WebCore::IntSize&); |
| virtual void paintToTextureMapper(WebCore::TextureMapper*, const WebCore::FloatRect&, const WebCore::TransformationMatrix&, float, WebCore::BitmapTexture*); |
| |
| private: |
| CoordinatedBackingStore() |
| : m_scale(1.) |
| { } |
| void paintTilesToTextureMapper(Vector<WebCore::TextureMapperTile*>&, WebCore::TextureMapper*, const WebCore::TransformationMatrix&, float, WebCore::BitmapTexture*, const WebCore::FloatRect&); |
| |
| HashMap<int, CoordinatedBackingStoreTile> m_tiles; |
| HashSet<int> m_tilesToRemove; |
| WebCore::IntSize m_size; |
| float m_scale; |
| }; |
| |
| } // namespace WebKit |
| #endif |
| |
| #endif // CoordinatedBackingStore_h |