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https://github.com/flutter/flutter.git
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99 lines
3.3 KiB
C++
99 lines
3.3 KiB
C++
/*
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* Copyright (C) 2011 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "core/html/canvas/WebGLContextGroup.h"
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#include "core/html/canvas/WebGLSharedObject.h"
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namespace blink {
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PassRefPtr<WebGLContextGroup> WebGLContextGroup::create()
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{
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RefPtr<WebGLContextGroup> contextGroup = adoptRef(new WebGLContextGroup());
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return contextGroup.release();
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}
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WebGLContextGroup::WebGLContextGroup()
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{
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}
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WebGLContextGroup::~WebGLContextGroup()
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{
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detachAndRemoveAllObjects();
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}
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blink::WebGraphicsContext3D* WebGLContextGroup::getAWebGraphicsContext3D()
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{
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ASSERT(!m_contexts.isEmpty());
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HashSet<WebGLRenderingContextBase*>::iterator it = m_contexts.begin();
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return (*it)->webContext();
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}
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void WebGLContextGroup::addContext(WebGLRenderingContextBase* context)
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{
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m_contexts.add(context);
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}
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void WebGLContextGroup::removeContext(WebGLRenderingContextBase* context)
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{
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// We must call detachAndRemoveAllObjects before removing the last context.
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if (m_contexts.size() == 1 && m_contexts.contains(context))
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detachAndRemoveAllObjects();
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m_contexts.remove(context);
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}
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void WebGLContextGroup::removeObject(WebGLSharedObject* object)
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{
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m_groupObjects.remove(object);
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}
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void WebGLContextGroup::addObject(WebGLSharedObject* object)
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{
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m_groupObjects.add(object);
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}
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void WebGLContextGroup::detachAndRemoveAllObjects()
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{
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while (!m_groupObjects.isEmpty()) {
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HashSet<WebGLSharedObject*>::iterator it = m_groupObjects.begin();
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(*it)->detachContextGroup();
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}
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}
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void WebGLContextGroup::loseContextGroup(WebGLRenderingContextBase::LostContextMode mode, WebGLRenderingContextBase::AutoRecoveryMethod autoRecoveryMethod)
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{
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// Detach must happen before loseContextImpl, which destroys the GraphicsContext3D
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// and prevents groupObjects from being properly deleted.
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detachAndRemoveAllObjects();
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for (HashSet<WebGLRenderingContextBase*>::iterator it = m_contexts.begin(); it != m_contexts.end(); ++it)
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(*it)->loseContextImpl(mode, autoRecoveryMethod);
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}
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} // namespace blink
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