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1 /* | |
2 * Copyright (C) 2011 Google 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/OESVertexArrayObject.h" | |
29 | |
30 #include "sky/engine/bindings/exception_state.h" | |
31 #include "sky/engine/core/html/canvas/WebGLRenderingContextBase.h" | |
32 #include "sky/engine/core/html/canvas/WebGLVertexArrayObjectOES.h" | |
33 | |
34 namespace blink { | |
35 | |
36 OESVertexArrayObject::OESVertexArrayObject(WebGLRenderingContextBase* context) | |
37 : WebGLExtension(context) | |
38 { | |
39 context->extensionsUtil()->ensureExtensionEnabled("GL_OES_vertex_array_objec
t"); | |
40 } | |
41 | |
42 OESVertexArrayObject::~OESVertexArrayObject() | |
43 { | |
44 } | |
45 | |
46 WebGLExtensionName OESVertexArrayObject::name() const | |
47 { | |
48 return OESVertexArrayObjectName; | |
49 } | |
50 | |
51 PassRefPtr<OESVertexArrayObject> OESVertexArrayObject::create(WebGLRenderingCont
extBase* context) | |
52 { | |
53 return adoptRef(new OESVertexArrayObject(context)); | |
54 } | |
55 | |
56 PassRefPtr<WebGLVertexArrayObjectOES> OESVertexArrayObject::createVertexArrayOES
() | |
57 { | |
58 if (isLost()) | |
59 return nullptr; | |
60 | |
61 RefPtr<WebGLVertexArrayObjectOES> o = WebGLVertexArrayObjectOES::create(m_co
ntext, WebGLVertexArrayObjectOES::VaoTypeUser); | |
62 m_context->addContextObject(o.get()); | |
63 return o.release(); | |
64 } | |
65 | |
66 void OESVertexArrayObject::deleteVertexArrayOES(WebGLVertexArrayObjectOES* array
Object) | |
67 { | |
68 if (!arrayObject || isLost()) | |
69 return; | |
70 | |
71 if (!arrayObject->isDefaultObject() && arrayObject == m_context->m_boundVert
exArrayObject) | |
72 m_context->setBoundVertexArrayObject(nullptr); | |
73 | |
74 arrayObject->deleteObject(m_context->webContext()); | |
75 } | |
76 | |
77 GLboolean OESVertexArrayObject::isVertexArrayOES(WebGLVertexArrayObjectOES* arra
yObject) | |
78 { | |
79 if (!arrayObject || isLost()) | |
80 return 0; | |
81 | |
82 if (!arrayObject->hasEverBeenBound()) | |
83 return 0; | |
84 | |
85 return m_context->webContext()->isVertexArrayOES(arrayObject->object()); | |
86 } | |
87 | |
88 void OESVertexArrayObject::bindVertexArrayOES(WebGLVertexArrayObjectOES* arrayOb
ject) | |
89 { | |
90 if (isLost()) | |
91 return; | |
92 | |
93 if (arrayObject && (arrayObject->isDeleted() || !arrayObject->validate(0, co
ntext()))) { | |
94 m_context->webContext()->synthesizeGLError(GL_INVALID_OPERATION); | |
95 return; | |
96 } | |
97 | |
98 if (arrayObject && !arrayObject->isDefaultObject() && arrayObject->object())
{ | |
99 m_context->webContext()->bindVertexArrayOES(arrayObject->object()); | |
100 | |
101 arrayObject->setHasEverBeenBound(); | |
102 m_context->setBoundVertexArrayObject(arrayObject); | |
103 } else { | |
104 m_context->webContext()->bindVertexArrayOES(0); | |
105 m_context->setBoundVertexArrayObject(nullptr); | |
106 } | |
107 } | |
108 | |
109 bool OESVertexArrayObject::supported(WebGLRenderingContextBase* context) | |
110 { | |
111 return context->extensionsUtil()->supportsExtension("GL_OES_vertex_array_obj
ect"); | |
112 } | |
113 | |
114 const char* OESVertexArrayObject::extensionName() | |
115 { | |
116 return "OES_vertex_array_object"; | |
117 } | |
118 | |
119 } // namespace blink | |
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