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#ifndef WebGLContextGroup_h
27#define WebGLContextGroup_h
28
29#include <WebGLRenderingContext.h>
30#include <wtf/HashSet.h>
31#include <wtf/PassRefPtr.h>
32#include <wtf/RefCounted.h>
33
34namespace WebCore {
35
36class GraphicsContext3D;
37class WebGLExtension;
38class WebGLSharedObject;
39class WebGLRenderingContext;
40
41typedef int ExceptionCode;
42
43class WebGLContextGroup : public RefCounted<WebGLContextGroup> {
44public:
45    static PassRefPtr<WebGLContextGroup> create();
46    virtual ~WebGLContextGroup();
47
48    void addContext(WebGLRenderingContext*);
49    void removeContext(WebGLRenderingContext*);
50
51    void addObject(WebGLSharedObject*);
52    void removeObject(WebGLSharedObject*);
53
54    GraphicsContext3D* getAGraphicsContext3D();
55
56    void loseContextGroup(WebGLRenderingContext::LostContextMode);
57
58  private:
59    friend class WebGLObject;
60
61    WebGLContextGroup();
62
63    void detachAndRemoveAllObjects();
64
65    HashSet<WebGLRenderingContext*> m_contexts;
66    HashSet<WebGLSharedObject*> m_groupObjects;
67};
68
69} // namespace WebCore
70
71#endif // WebGLContextGroup_h
72