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Side by Side Diff: sky/engine/core/html/canvas/WebGLBuffer.cpp

Issue 1001913003: Remove <canvas> (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 9 months ago
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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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