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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 "sky/engine/config.h" | |
27 | |
28 #include "sky/engine/core/html/canvas/WebGLBuffer.h" | |
29 | |
30 #include "sky/engine/core/html/canvas/WebGLRenderingContextBase.h" | |
31 | |
32 namespace blink { | |
33 | |
34 PassRefPtr<WebGLBuffer> WebGLBuffer::create(WebGLRenderingContextBase* ctx) | |
35 { | |
36 return adoptRef(new WebGLBuffer(ctx)); | |
37 } | |
38 | |
39 WebGLBuffer::WebGLBuffer(WebGLRenderingContextBase* ctx) | |
40 : WebGLSharedObject(ctx) | |
41 , m_target(0) | |
42 { | |
43 setObject(ctx->webContext()->createBuffer()); | |
44 } | |
45 | |
46 WebGLBuffer::~WebGLBuffer() | |
47 { | |
48 // Delete the buffer's platform object. This object will have been | |
49 // detached from the WebGLContextGroup if the group object was | |
50 // finalized first. With Oilpan not enabled, it always will be, | |
51 // but with Oilpan enabled, the WebGLBuffer might end up being | |
52 // finalized first. In which case detachment is needed to ensure | |
53 // that the platform object is indeed deleted. | |
54 // | |
55 // To keep the code regular, the trivial detach()ment is always | |
56 // performed. | |
57 detachAndDeleteObject(); | |
58 } | |
59 | |
60 void WebGLBuffer::deleteObjectImpl(blink::WebGraphicsContext3D* context3d, Platf
orm3DObject object) | |
61 { | |
62 context3d->deleteBuffer(object); | |
63 } | |
64 | |
65 void WebGLBuffer::setTarget(GLenum target) | |
66 { | |
67 // In WebGL, a buffer is bound to one target in its lifetime | |
68 if (m_target) | |
69 return; | |
70 if (target == GL_ARRAY_BUFFER || target == GL_ELEMENT_ARRAY_BUFFER) | |
71 m_target = target; | |
72 } | |
73 | |
74 } | |
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