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 "config.h"
27
28 #if ENABLE(WEBGL)
29
30 #include "OESVertexArrayObject.h"
31
32 #include "Extensions3D.h"
33 #include "WebGLRenderingContext.h"
34 #include "WebGLVertexArrayObjectOES.h"
35
36 namespace WebCore {
37
OESVertexArrayObject(WebGLRenderingContext * context)38 OESVertexArrayObject::OESVertexArrayObject(WebGLRenderingContext* context)
39 : WebGLExtension()
40 , m_context(context)
41 {
42 }
43
~OESVertexArrayObject()44 OESVertexArrayObject::~OESVertexArrayObject()
45 {
46 }
47
getName() const48 WebGLExtension::ExtensionName OESVertexArrayObject::getName() const
49 {
50 return OESVertexArrayObjectName;
51 }
52
create(WebGLRenderingContext * context)53 PassRefPtr<OESVertexArrayObject> OESVertexArrayObject::create(WebGLRenderingContext* context)
54 {
55 return adoptRef(new OESVertexArrayObject(context));
56 }
57
createVertexArrayOES()58 PassRefPtr<WebGLVertexArrayObjectOES> OESVertexArrayObject::createVertexArrayOES()
59 {
60 if (m_context->isContextLost())
61 return 0;
62
63 RefPtr<WebGLVertexArrayObjectOES> o = WebGLVertexArrayObjectOES::create(m_context, WebGLVertexArrayObjectOES::VaoTypeUser);
64 m_context->addObject(o.get());
65 return o.release();
66 }
67
deleteVertexArrayOES(WebGLVertexArrayObjectOES * arrayObject)68 void OESVertexArrayObject::deleteVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject)
69 {
70 if (!arrayObject || m_context->isContextLost())
71 return;
72
73 arrayObject->deleteObject();
74 }
75
isVertexArrayOES(WebGLVertexArrayObjectOES * arrayObject)76 GC3Dboolean OESVertexArrayObject::isVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject)
77 {
78 if (!arrayObject || m_context->isContextLost())
79 return 0;
80
81 if (!arrayObject->hasEverBeenBound())
82 return 0;
83
84 Extensions3D* extensions = m_context->graphicsContext3D()->getExtensions();
85 return extensions->isVertexArrayOES(arrayObject->object());
86 }
87
bindVertexArrayOES(WebGLVertexArrayObjectOES * arrayObject,ExceptionCode & ec)88 void OESVertexArrayObject::bindVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject, ExceptionCode& ec)
89 {
90 UNUSED_PARAM(ec);
91 if (m_context->isContextLost())
92 return;
93
94 if (arrayObject && arrayObject->context() != m_context) {
95 m_context->graphicsContext3D()->synthesizeGLError(GraphicsContext3D::INVALID_OPERATION);
96 return;
97 }
98
99 Extensions3D* extensions = m_context->graphicsContext3D()->getExtensions();
100 if (arrayObject && !arrayObject->isDefaultObject() && arrayObject->object()) {
101 extensions->bindVertexArrayOES(arrayObject->object());
102
103 arrayObject->setHasEverBeenBound();
104 m_context->setBoundVertexArrayObject(arrayObject);
105 } else {
106 extensions->bindVertexArrayOES(0);
107
108 m_context->setBoundVertexArrayObject(0);
109 }
110
111 m_context->cleanupAfterGraphicsCall(false);
112 }
113
114 } // namespace WebCore
115
116 #endif // ENABLE(WEBGL)
117