1 /* 2 * Copyright 2011, The Android Open Source Project 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef PaintedSurface_h 27 #define PaintedSurface_h 28 29 #include "BaseTileTexture.h" 30 #include "ClassTracker.h" 31 #include "IntRect.h" 32 #include "LayerAndroid.h" 33 #include "SkRefCnt.h" 34 #include "TextureOwner.h" 35 #include "TiledTexture.h" 36 #include "TilesManager.h" 37 #include "TilePainter.h" 38 #include "TransformationMatrix.h" 39 #include "UpdateManager.h" 40 41 class SkCanvas; 42 class SkRegion; 43 44 namespace WebCore { 45 46 class UpdateManager; 47 48 class PaintedSurface : public SkRefCnt { 49 public: 50 PaintedSurface(LayerAndroid* layer); 51 virtual ~PaintedSurface(); 52 53 // PaintedSurface methods 54 layer()55 LayerAndroid* layer() { return m_layer; } 56 void prepare(GLWebViewState*); 57 bool draw(); 58 void markAsDirty(const SkRegion& dirtyArea); 59 bool paint(SkCanvas*); 60 void removeLayer(); 61 void removeLayer(LayerAndroid* layer); 62 void replaceLayer(LayerAndroid* layer); 63 64 bool owns(BaseTileTexture* texture); 65 66 void computeVisibleArea(); 67 68 // TilePainter methods for TiledTexture 69 virtual void paintExtra(SkCanvas*); 70 virtual const TransformationMatrix* transform(); 71 72 // used by TiledTexture area()73 const IntRect& area() { return m_area; } visibleArea()74 const IntRect& visibleArea() { return m_visibleArea; } scale()75 float scale() { return m_scale; } 76 float opacity(); pictureUsed()77 unsigned int pictureUsed() { return m_pictureUsed; } 78 79 private: 80 UpdateManager m_updateManager; 81 82 LayerAndroid* m_layer; 83 DualTiledTexture* m_tiledTexture; 84 85 IntRect m_area; 86 IntRect m_visibleArea; 87 float m_scale; 88 89 unsigned int m_pictureUsed; 90 91 android::Mutex m_layerLock; 92 }; 93 94 } // namespace WebCore 95 96 #endif // PaintedSurface_h 97