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 BaseRenderer_h 27 #define BaseRenderer_h 28 29 #if USE(ACCELERATED_COMPOSITING) 30 31 #include "Color.h" 32 #include "SkRect.h" 33 #include <wtf/text/StringHash.h> 34 35 class SkCanvas; 36 class SkDevice; 37 38 namespace WebCore { 39 40 class TextureInfo; 41 class TilePainter; 42 class Tile; 43 44 struct TileRenderInfo { 45 // coordinates of the tile 46 int x; 47 int y; 48 49 // current scale factor 50 float scale; 51 52 // the expected size of the tile 53 SkSize tileSize; 54 55 // the painter object in charge of drawing our content 56 TilePainter* tilePainter; 57 58 // the base tile calling us 59 Tile* baseTile; 60 61 // info about the texture that we are to render into 62 TextureInfo* textureInfo; 63 64 bool isPureColor; 65 Color pureColor; 66 }; 67 68 /** 69 * 70 */ 71 class BaseRenderer { 72 public: 73 enum RendererType { Raster, Ganesh }; BaseRenderer(RendererType type)74 BaseRenderer(RendererType type) : m_type(type) {} ~BaseRenderer()75 virtual ~BaseRenderer() {} 76 77 void renderTiledContent(TileRenderInfo& renderInfo); 78 getType()79 RendererType getType() { return m_type; } 80 81 static BaseRenderer* createRenderer(); 82 static void swapRendererIfNeeded(BaseRenderer*& renderer); getCurrentRendererType()83 static RendererType getCurrentRendererType() { return g_currentType; } setCurrentRendererType(RendererType type)84 static void setCurrentRendererType(RendererType type) { g_currentType = type; } 85 86 protected: 87 88 virtual void setupCanvas(const TileRenderInfo& renderInfo, SkCanvas* canvas) = 0; 89 virtual void renderingComplete(const TileRenderInfo& renderInfo, SkCanvas* canvas) = 0; 90 virtual void checkForPureColor(TileRenderInfo& renderInfo, SkCanvas* canvas) = 0; 91 92 void drawTileInfo(SkCanvas* canvas, const TileRenderInfo& renderInfo, 93 int updateCount, double renderDuration); 94 95 private: 96 RendererType m_type; 97 static RendererType g_currentType; 98 }; 99 100 } // namespace WebCore 101 102 #endif // USE(ACCELERATED_COMPOSITING) 103 #endif // BaseRenderer_h 104