1/*
2 * Copyright (C) 2011-2017 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#include "WebGLContextGroup.h"
28
29#if ENABLE(WEBGL)
30
31#include "GraphicsContext3D.h"
32#include "WebGLRenderingContextBase.h"
33#include "WebGLSharedObject.h"
34
35namespace WebCore {
36
37Ref<WebGLContextGroup> WebGLContextGroup::create()
38{
39 return adoptRef(*new WebGLContextGroup);
40}
41
42WebGLContextGroup::~WebGLContextGroup()
43{
44 detachAndRemoveAllObjects();
45}
46
47GraphicsContext3D& WebGLContextGroup::getAGraphicsContext3D()
48{
49 ASSERT(!m_contexts.isEmpty());
50 return *(*m_contexts.begin())->graphicsContext3D();
51}
52
53void WebGLContextGroup::addContext(WebGLRenderingContextBase& context)
54{
55 m_contexts.add(&context);
56}
57
58void WebGLContextGroup::removeContext(WebGLRenderingContextBase& context)
59{
60 // We must call detachAndRemoveAllObjects before removing the last context.
61 if (m_contexts.size() == 1 && m_contexts.contains(&context))
62 detachAndRemoveAllObjects();
63
64 m_contexts.remove(&context);
65}
66
67void WebGLContextGroup::removeObject(WebGLSharedObject& object)
68{
69 m_groupObjects.remove(&object);
70}
71
72void WebGLContextGroup::addObject(WebGLSharedObject& object)
73{
74 m_groupObjects.add(&object);
75}
76
77void WebGLContextGroup::detachAndRemoveAllObjects()
78{
79 while (!m_groupObjects.isEmpty())
80 (*m_groupObjects.begin())->detachContextGroup();
81}
82
83void WebGLContextGroup::loseContextGroup(WebGLRenderingContextBase::LostContextMode mode)
84{
85 for (auto& context : m_contexts)
86 context->loseContextImpl(mode);
87
88 detachAndRemoveAllObjects();
89}
90
91} // namespace WebCore
92
93#endif // ENABLE(WEBGL)
94