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 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 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 "WebGLObject.h" 30 31namespace WebCore { 32 33class GraphicsContext3D; 34class WebGLContextGroup; 35class WebGLRenderingContext; 36 37// WebGLSharedObject the base class for objects that can be shared by multiple 38// WebGLRenderingContexts. 39class WebGLSharedObject : public WebGLObject { 40public: 41 virtual ~WebGLSharedObject(); 42 43 WebGLContextGroup* contextGroup() const { return m_contextGroup; } 44 45 virtual bool isBuffer() const { return false; } 46 virtual bool isFramebuffer() const { return false; } 47 virtual bool isProgram() const { return false; } 48 virtual bool isRenderbuffer() const { return false; } 49 virtual bool isShader() const { return false; } 50 virtual bool isTexture() const { return false; } 51 52 virtual bool validate(const WebGLContextGroup* contextGroup, const WebGLRenderingContext*) const override 53 { 54 return contextGroup == m_contextGroup; 55 } 56 57 void detachContextGroup(); 58 59protected: 60 WebGLSharedObject(WebGLRenderingContext*); 61 62 virtual bool hasGroupOrContext() const override 63 { 64 return m_contextGroup; 65 } 66 67 virtual GraphicsContext3D* getAGraphicsContext3D() const override; 68 69private: 70 WebGLContextGroup* m_contextGroup; 71}; 72 73} // namespace WebCore 74 75#endif // WebGLSharedObject_h 76