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 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 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#include "OESVertexArrayObject.h"
28
29#if ENABLE(WEBGL)
30
31#include "Extensions3D.h"
32#include "WebGLRenderingContext.h"
33
34namespace WebCore {
35
36OESVertexArrayObject::OESVertexArrayObject(WebGLRenderingContextBase& context)
37 : WebGLExtension(context)
38{
39}
40
41WebGLExtension::ExtensionName OESVertexArrayObject::getName() const
42{
43 return OESVertexArrayObjectName;
44}
45
46RefPtr<WebGLVertexArrayObjectOES> OESVertexArrayObject::createVertexArrayOES()
47{
48 if (m_context.isContextLost())
49 return nullptr;
50
51 auto object = WebGLVertexArrayObjectOES::create(m_context, WebGLVertexArrayObjectOES::Type::User);
52 m_context.addContextObject(object.get());
53 return object;
54}
55
56void OESVertexArrayObject::deleteVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject)
57{
58 if (!arrayObject || m_context.isContextLost())
59 return;
60
61 if (!arrayObject->isDefaultObject() && arrayObject == static_cast<WebGLRenderingContext&>(m_context).m_boundVertexArrayObject)
62 static_cast<WebGLRenderingContext&>(m_context).setBoundVertexArrayObject(nullptr);
63
64 arrayObject->deleteObject(m_context.graphicsContext3D());
65}
66
67GC3Dboolean OESVertexArrayObject::isVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject)
68{
69 return arrayObject && !m_context.isContextLost() && arrayObject->hasEverBeenBound()
70 && m_context.graphicsContext3D()->getExtensions().isVertexArrayOES(arrayObject->object());
71}
72
73void OESVertexArrayObject::bindVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject)
74{
75 if (m_context.isContextLost())
76 return;
77
78 if (arrayObject && (arrayObject->isDeleted() || !arrayObject->validate(nullptr, context()))) {
79 m_context.graphicsContext3D()->synthesizeGLError(GraphicsContext3D::INVALID_OPERATION);
80 return;
81 }
82
83 auto& extensions = m_context.graphicsContext3D()->getExtensions();
84 auto& context = downcast<WebGLRenderingContext>(m_context);
85 if (arrayObject && !arrayObject->isDefaultObject() && arrayObject->object()) {
86 extensions.bindVertexArrayOES(arrayObject->object());
87 arrayObject->setHasEverBeenBound();
88 context.setBoundVertexArrayObject(arrayObject);
89 } else {
90 extensions.bindVertexArrayOES(0);
91 context.setBoundVertexArrayObject(nullptr);
92 }
93}
94
95} // namespace WebCore
96
97#endif // ENABLE(WEBGL)
98