1 /* 2 * Copyright (C) 2011 Apple 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 COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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 WebGLSharedObject_h 27 #define WebGLSharedObject_h 28 29 #include "core/html/canvas/WebGLObject.h" 30 31 namespace blink { 32 33 class WebGLContextGroup; 34 class WebGLRenderingContextBase; 35 36 // WebGLSharedObject the base class for objects that can be shared by multiple 37 // WebGLRenderingContexts. 38 class WebGLSharedObject : public WebGLObject { 39 public: 40 virtual ~WebGLSharedObject(); 41 contextGroup()42 WebGLContextGroup* contextGroup() const { return m_contextGroup; } 43 isBuffer()44 virtual bool isBuffer() const { return false; } isProgram()45 virtual bool isProgram() const { return false; } isRenderbuffer()46 virtual bool isRenderbuffer() const { return false; } isShader()47 virtual bool isShader() const { return false; } isTexture()48 virtual bool isTexture() const { return false; } 49 validate(const WebGLContextGroup * contextGroup,const WebGLRenderingContextBase *)50 virtual bool validate(const WebGLContextGroup* contextGroup, const WebGLRenderingContextBase*) const OVERRIDE FINAL 51 { 52 return contextGroup == m_contextGroup; 53 } 54 55 void detachContextGroup(); 56 57 protected: 58 explicit WebGLSharedObject(WebGLRenderingContextBase*); 59 hasGroupOrContext()60 virtual bool hasGroupOrContext() const OVERRIDE FINAL 61 { 62 return m_contextGroup; 63 } 64 65 virtual blink::WebGraphicsContext3D* getAWebGraphicsContext3D() const OVERRIDE FINAL; 66 67 private: 68 WebGLContextGroup* m_contextGroup; 69 }; 70 71 } // namespace blink 72 73 #endif // WebGLSharedObject_h 74