1 /* 2 * Copyright (C) 2011 Google Inc. All rights reserved. 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 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. 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 APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25 #ifndef CCHeadsUpDisplay_h 26 #define CCHeadsUpDisplay_h 27 28 #if USE(ACCELERATED_COMPOSITING) 29 30 #include "Font.h" 31 #include "ProgramBinding.h" 32 #include "ShaderChromium.h" 33 34 namespace WebCore { 35 36 class GeometryBinding; 37 class GraphicsContext3D; 38 class LayerRendererChromium; 39 class LayerTexture; 40 41 // Class that handles drawing of composited render layers using GL. 42 class CCHeadsUpDisplay { 43 WTF_MAKE_NONCOPYABLE(CCHeadsUpDisplay); 44 public: create(LayerRendererChromium * owner)45 static PassOwnPtr<CCHeadsUpDisplay> create(LayerRendererChromium* owner) 46 { 47 return adoptPtr(new CCHeadsUpDisplay(owner)); 48 } 49 50 ~CCHeadsUpDisplay(); 51 52 void onPresent(); 53 setShowFPSCounter(bool enable)54 void setShowFPSCounter(bool enable) { m_showFPSCounter = enable; } showFPSCounter()55 bool showFPSCounter() const { return m_showFPSCounter; } 56 setShowPlatformLayerTree(bool enable)57 void setShowPlatformLayerTree(bool enable) { m_showPlatformLayerTree = enable; } showPlatformLayerTree()58 bool showPlatformLayerTree() const { return m_showPlatformLayerTree; } 59 enabled()60 bool enabled() const { return m_showPlatformLayerTree || m_showFPSCounter; } 61 void draw(); 62 63 typedef ProgramBinding<VertexShaderPosTex, FragmentShaderBGRATexAlpha> Program; 64 65 private: 66 explicit CCHeadsUpDisplay(LayerRendererChromium* owner); 67 void drawHudContents(GraphicsContext*, const IntSize& hudSize); 68 void drawFPSCounter(GraphicsContext*, int top, int height); 69 void drawPlatformLayerTree(GraphicsContext*, int top); 70 71 72 int m_currentFrameNumber; 73 74 double m_filteredFrameTime; 75 76 OwnPtr<LayerTexture> m_hudTexture; 77 78 LayerRendererChromium* m_layerRenderer; 79 80 static const int kPresentHistorySize = 64; 81 double m_presentTimeHistoryInSec[kPresentHistorySize]; 82 83 bool m_showFPSCounter; 84 bool m_showPlatformLayerTree; 85 86 OwnPtr<Font> m_smallFont; 87 OwnPtr<Font> m_mediumFont; 88 }; 89 90 } 91 92 #endif // USE(ACCELERATED_COMPOSITING) 93 94 #endif 95