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#include "config.h" 27 28#if ENABLE(WEBGL) 29 30#include "WebGLContextGroup.h" 31 32#include "GraphicsContext3D.h" 33#include "WebGLRenderingContext.h" 34#include "WebGLSharedObject.h" 35 36#if PLATFORM(QT) 37#undef emit 38#endif 39 40namespace WebCore { 41 42PassRefPtr<WebGLContextGroup> WebGLContextGroup::create() 43{ 44 RefPtr<WebGLContextGroup> contextGroup = adoptRef(new WebGLContextGroup()); 45 return contextGroup.release(); 46} 47 48WebGLContextGroup::WebGLContextGroup() 49{ 50} 51 52WebGLContextGroup::~WebGLContextGroup() 53{ 54 detachAndRemoveAllObjects(); 55} 56 57GraphicsContext3D* WebGLContextGroup::getAGraphicsContext3D() 58{ 59 ASSERT(!m_contexts.isEmpty()); 60 HashSet<WebGLRenderingContext*>::iterator it = m_contexts.begin(); 61 return (*it)->graphicsContext3D(); 62} 63 64void WebGLContextGroup::addContext(WebGLRenderingContext* context) 65{ 66 m_contexts.add(context); 67} 68 69void WebGLContextGroup::removeContext(WebGLRenderingContext* context) 70{ 71 // We must call detachAndRemoveAllObjects before removing the last context. 72 if (m_contexts.size() == 1 && m_contexts.contains(context)) 73 detachAndRemoveAllObjects(); 74 75 m_contexts.remove(context); 76} 77 78void WebGLContextGroup::removeObject(WebGLSharedObject* object) 79{ 80 m_groupObjects.remove(object); 81} 82 83void WebGLContextGroup::addObject(WebGLSharedObject* object) 84{ 85 m_groupObjects.add(object); 86} 87 88void WebGLContextGroup::detachAndRemoveAllObjects() 89{ 90 while (!m_groupObjects.isEmpty()) { 91 HashSet<WebGLSharedObject*>::iterator it = m_groupObjects.begin(); 92 (*it)->detachContextGroup(); 93 } 94} 95 96void WebGLContextGroup::loseContextGroup(WebGLRenderingContext::LostContextMode mode) 97{ 98 for (HashSet<WebGLRenderingContext*>::iterator it = m_contexts.begin(); it != m_contexts.end(); ++it) 99 (*it)->loseContextImpl(mode); 100 101 detachAndRemoveAllObjects(); 102} 103 104} // namespace WebCore 105 106#endif // ENABLE(WEBGL) 107