WebGLObject.cpp revision 2fc2651226baac27029e38c9d6ef883fa32084db 
1/*
2 * Copyright (C) 2009 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#include "config.h"
27
28#if ENABLE(WEBGL)
29
30#include "WebGLObject.h"
31
32#include "WebGLRenderingContext.h"
33
34namespace WebCore {
35
36WebGLObject::WebGLObject(WebGLRenderingContext* context)
37    : m_object(0)
38    , m_context(context)
39    , m_attachmentCount(0)
40    , m_deleted(false)
41{
42}
43
44WebGLObject::~WebGLObject()
45{
46    if (m_context)
47        m_context->removeObject(this);
48}
49
50void WebGLObject::setObject(Platform3DObject object)
51{
52    // object==0 && m_deleted==false indicating an uninitialized state;
53    ASSERT(!m_object && !m_deleted);
54    m_object = object;
55}
56
57void WebGLObject::deleteObject()
58{
59    m_deleted = true;
60    if (!m_context || !m_object)
61        return;
62    if (!m_attachmentCount) {
63        m_context->graphicsContext3D()->makeContextCurrent();
64        deleteObjectImpl(m_object);
65        m_object = 0;
66    }
67}
68
69}
70
71#endif // ENABLE(WEBGL)
72