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#pragma once
27
28#include "WebGLObject.h"
29
30namespace WebCore {
31
32class GraphicsContext3D;
33class WebGLContextGroup;
34class WebGLRenderingContextBase;
35
36// WebGLSharedObject the base class for objects that can be shared by multiple WebGLRenderingContexts.
37class WebGLSharedObject : public WebGLObject {
38public:
39 virtual ~WebGLSharedObject();
40
41 WebGLContextGroup* contextGroup() const { return m_contextGroup; }
42
43 virtual bool isRenderbuffer() const { return false; }
44 virtual bool isTexture() const { return false; }
45
46 bool validate(const WebGLContextGroup* contextGroup, const WebGLRenderingContextBase&) const override
47 {
48 return contextGroup == m_contextGroup;
49 }
50
51 void detachContextGroup();
52
53protected:
54 WebGLSharedObject(WebGLRenderingContextBase&);
55
56 bool hasGroupOrContext() const override
57 {
58 return m_contextGroup;
59 }
60
61 GraphicsContext3D* getAGraphicsContext3D() const override;
62
63private:
64 WebGLContextGroup* m_contextGroup;
65};
66
67} // namespace WebCore
68