1 /* 2 * Copyright 2010, 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 BaseLayerAndroid_h 27 #define BaseLayerAndroid_h 28 29 #include "Color.h" 30 #include "GLWebViewState.h" 31 #include "IntRect.h" 32 #include "Layer.h" 33 #include "PictureSet.h" 34 #include "SkPicture.h" 35 36 namespace WebCore { 37 38 class BaseLayerAndroid : public Layer { 39 40 public: 41 enum ScrollState { 42 NotScrolling = 0, 43 Scrolling = 1, 44 ScrollingFinishPaint = 2 45 }; 46 47 BaseLayerAndroid(); 48 virtual ~BaseLayerAndroid(); 49 50 #if USE(ACCELERATED_COMPOSITING) 51 void setBackgroundColor(Color& color) { m_color = color; } 52 Color getBackgroundColor() { return m_color; } 53 #endif 54 void setContent(const android::PictureSet& src); 55 android::PictureSet* content() { return &m_content; } 56 // This method will paint using the current PictureSet onto 57 // the passed canvas. We used it to paint the GL tiles as well as 58 // WebView::copyBaseContentToPicture(), so a lock is necessary as 59 // we are running in different threads. 60 virtual bool drawCanvas(SkCanvas* canvas); 61 62 void updateLayerPositions(SkRect& visibleRect); 63 bool prepare(double currentTime, IntRect& viewRect, 64 SkRect& visibleRect, float scale); 65 bool drawGL(IntRect& viewRect, SkRect& visibleRect, float scale); 66 67 // rendering asset management 68 void swapTiles(); 69 void setIsDrawing(bool isDrawing); 70 void setIsPainting(Layer* drawingTree); 71 void mergeInvalsInto(Layer* replacementTree); 72 bool isReady(); 73 74 private: 75 #if USE(ACCELERATED_COMPOSITING) 76 void prefetchBasePicture(SkRect& viewport, float currentScale, 77 TiledPage* prefetchTiledPage, bool draw); 78 bool prepareBasePictureInGL(SkRect& viewport, float scale, double currentTime); 79 void drawBasePictureInGL(); 80 81 android::Mutex m_drawLock; 82 Color m_color; 83 #endif 84 android::PictureSet m_content; 85 86 ScrollState m_scrollState; 87 }; 88 89 } // namespace WebCore 90 91 #endif // BaseLayerAndroid_h 92