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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(3D_CANVAS)
29 
30 #include "CanvasObject.h"
31 #include "WebGLRenderingContext.h"
32 
33 namespace WebCore {
34 
CanvasObject(WebGLRenderingContext * context)35 CanvasObject::CanvasObject(WebGLRenderingContext* context)
36     : m_object(0)
37     , m_shouldDeleteObject(true)
38     , m_context(context)
39 {
40 }
41 
~CanvasObject()42 CanvasObject::~CanvasObject()
43 {
44     if (m_context)
45         m_context->removeObject(this);
46 }
47 
setObject(Platform3DObject object,bool shouldDeleteObject)48 void CanvasObject::setObject(Platform3DObject object, bool shouldDeleteObject)
49 {
50     if (object == m_object)
51         return;
52 
53     deleteObject();
54     m_object = object;
55     m_shouldDeleteObject = shouldDeleteObject;
56 }
57 
deleteObject()58 void CanvasObject::deleteObject()
59 {
60     if (m_object) {
61         if (m_shouldDeleteObject)
62             if (m_context) {
63                 m_context->graphicsContext3D()->makeContextCurrent();
64                 _deleteObject(m_object);
65             }
66         m_object = 0;
67     }
68     m_shouldDeleteObject = true;
69 }
70 
71 }
72 
73 #endif // ENABLE(3D_CANVAS)
74