1 /* 2 * Copyright (C) 2010 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 32 #ifndef CanvasLayerChromium_h 33 #define CanvasLayerChromium_h 34 35 #if USE(ACCELERATED_COMPOSITING) 36 37 #include "LayerChromium.h" 38 39 namespace WebCore { 40 41 // Base class for WebGL and accelerated 2d canvases. 42 class CanvasLayerChromium : public LayerChromium { 43 public: 44 virtual ~CanvasLayerChromium(); 45 46 virtual PassRefPtr<CCLayerImpl> createCCLayerImpl(); 47 48 virtual void pushPropertiesTo(CCLayerImpl*); 49 50 protected: 51 explicit CanvasLayerChromium(GraphicsLayerChromium* owner); 52 53 virtual const char* layerTypeAsString() const { return "CanvasLayer"; } 54 55 bool m_textureChanged; 56 unsigned m_textureId; 57 bool m_premultipliedAlpha; 58 }; 59 60 } 61 #endif // USE(ACCELERATED_COMPOSITING) 62 63 #endif // CanvasLayerChromium_h 64