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