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 #include "core/html/canvas/WebGLVertexArrayObjectOES.h"
29
30 #include "core/html/canvas/WebGLRenderingContextBase.h"
31
32 namespace WebCore {
33
create(WebGLRenderingContextBase * ctx,VaoType type)34 PassRefPtr<WebGLVertexArrayObjectOES> WebGLVertexArrayObjectOES::create(WebGLRenderingContextBase* ctx, VaoType type)
35 {
36 return adoptRef(new WebGLVertexArrayObjectOES(ctx, type));
37 }
38
WebGLVertexArrayObjectOES(WebGLRenderingContextBase * ctx,VaoType type)39 WebGLVertexArrayObjectOES::WebGLVertexArrayObjectOES(WebGLRenderingContextBase* ctx, VaoType type)
40 : WebGLContextObject(ctx)
41 , m_type(type)
42 , m_hasEverBeenBound(false)
43 , m_boundElementArrayBuffer(nullptr)
44 {
45 ScriptWrappable::init(this);
46 m_vertexAttribState.resize(ctx->maxVertexAttribs());
47
48 switch (m_type) {
49 case VaoTypeDefault:
50 break;
51 default:
52 setObject(context()->webContext()->createVertexArrayOES());
53 break;
54 }
55 }
56
~WebGLVertexArrayObjectOES()57 WebGLVertexArrayObjectOES::~WebGLVertexArrayObjectOES()
58 {
59 deleteObject(0);
60 }
61
deleteObjectImpl(blink::WebGraphicsContext3D * context3d,Platform3DObject object)62 void WebGLVertexArrayObjectOES::deleteObjectImpl(blink::WebGraphicsContext3D* context3d, Platform3DObject object)
63 {
64 switch (m_type) {
65 case VaoTypeDefault:
66 break;
67 default:
68 context()->webContext()->deleteVertexArrayOES(object);
69 break;
70 }
71
72 if (m_boundElementArrayBuffer)
73 m_boundElementArrayBuffer->onDetached(context3d);
74
75 for (size_t i = 0; i < m_vertexAttribState.size(); ++i) {
76 VertexAttribState& state = m_vertexAttribState[i];
77 if (state.bufferBinding)
78 state.bufferBinding->onDetached(context3d);
79 }
80 }
81
setElementArrayBuffer(PassRefPtr<WebGLBuffer> buffer)82 void WebGLVertexArrayObjectOES::setElementArrayBuffer(PassRefPtr<WebGLBuffer> buffer)
83 {
84 if (buffer)
85 buffer->onAttached();
86 if (m_boundElementArrayBuffer)
87 m_boundElementArrayBuffer->onDetached(context()->webContext());
88 m_boundElementArrayBuffer = buffer;
89
90 }
91
setVertexAttribState(GLuint index,GLsizei bytesPerElement,GLint size,GLenum type,GLboolean normalized,GLsizei stride,GLintptr offset,PassRefPtr<WebGLBuffer> buffer)92 void WebGLVertexArrayObjectOES::setVertexAttribState(
93 GLuint index, GLsizei bytesPerElement, GLint size, GLenum type, GLboolean normalized, GLsizei stride, GLintptr offset, PassRefPtr<WebGLBuffer> buffer)
94 {
95 GLsizei validatedStride = stride ? stride : bytesPerElement;
96
97 VertexAttribState& state = m_vertexAttribState[index];
98
99 if (buffer)
100 buffer->onAttached();
101 if (state.bufferBinding)
102 state.bufferBinding->onDetached(context()->webContext());
103
104 state.bufferBinding = buffer;
105 state.bytesPerElement = bytesPerElement;
106 state.size = size;
107 state.type = type;
108 state.normalized = normalized;
109 state.stride = validatedStride;
110 state.originalStride = stride;
111 state.offset = offset;
112 }
113
unbindBuffer(PassRefPtr<WebGLBuffer> buffer)114 void WebGLVertexArrayObjectOES::unbindBuffer(PassRefPtr<WebGLBuffer> buffer)
115 {
116 if (m_boundElementArrayBuffer == buffer) {
117 m_boundElementArrayBuffer->onDetached(context()->webContext());
118 m_boundElementArrayBuffer = nullptr;
119 }
120
121 for (size_t i = 0; i < m_vertexAttribState.size(); ++i) {
122 VertexAttribState& state = m_vertexAttribState[i];
123 if (state.bufferBinding == buffer) {
124 buffer->onDetached(context()->webContext());
125 state.bufferBinding = nullptr;
126 }
127 }
128 }
129
setVertexAttribDivisor(GLuint index,GLuint divisor)130 void WebGLVertexArrayObjectOES::setVertexAttribDivisor(GLuint index, GLuint divisor)
131 {
132 VertexAttribState& state = m_vertexAttribState[index];
133 state.divisor = divisor;
134 }
135
136 }
137