1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
/*
* Copyright (C) 2015-2021 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "WebGLVertexArrayObjectBase.h"
#if ENABLE(WEBGL)
#include "WebGLRenderingContextBase.h"
#include <JavaScriptCore/AbstractSlotVisitorInlines.h>
#include <wtf/Locker.h>
namespace WebCore {
WebGLVertexArrayObjectBase::WebGLVertexArrayObjectBase(WebGLRenderingContextBase& context, Type type)
: WebGLContextObject(context)
, m_type(type)
{
m_vertexAttribState.resize(context.getMaxVertexAttribs());
}
void WebGLVertexArrayObjectBase::setElementArrayBuffer(const AbstractLocker& locker, WebGLBuffer* buffer)
{
if (buffer)
buffer->onAttached();
if (m_boundElementArrayBuffer)
m_boundElementArrayBuffer->onDetached(locker, context()->graphicsContextGL());
m_boundElementArrayBuffer = buffer;
}
void WebGLVertexArrayObjectBase::setVertexAttribState(const AbstractLocker& locker, GCGLuint index, GCGLsizei bytesPerElement, GCGLint size, GCGLenum type, GCGLboolean normalized, GCGLsizei stride, GCGLintptr offset, bool isInteger, WebGLBuffer* buffer)
{
GCGLsizei validatedStride = stride ? stride : bytesPerElement;
auto& state = m_vertexAttribState[index];
if (buffer)
buffer->onAttached();
if (state.bufferBinding)
state.bufferBinding->onDetached(locker, context()->graphicsContextGL());
state.bufferBinding = buffer;
state.bytesPerElement = bytesPerElement;
state.size = size;
state.type = type;
state.normalized = normalized;
state.stride = validatedStride;
state.originalStride = stride;
state.offset = offset;
state.isInteger = isInteger;
}
void WebGLVertexArrayObjectBase::unbindBuffer(const AbstractLocker& locker, WebGLBuffer& buffer)
{
if (m_boundElementArrayBuffer == &buffer) {
m_boundElementArrayBuffer->onDetached(locker, context()->graphicsContextGL());
m_boundElementArrayBuffer = nullptr;
}
for (size_t i = 0; i < m_vertexAttribState.size(); ++i) {
auto& state = m_vertexAttribState[i];
if (state.bufferBinding == &buffer) {
buffer.onDetached(locker, context()->graphicsContextGL());
#if !USE(ANGLE)
if (!i && !context()->isGLES2Compliant()) {
state.bufferBinding = context()->m_vertexAttrib0Buffer;
state.bufferBinding->onAttached();
state.bytesPerElement = 0;
state.size = 4;
state.type = GraphicsContextGL::FLOAT;
state.normalized = false;
state.stride = 16;
state.originalStride = 0;
state.offset = 0;
} else
#endif
state.bufferBinding = nullptr;
}
}
}
void WebGLVertexArrayObjectBase::setVertexAttribDivisor(GCGLuint index, GCGLuint divisor)
{
m_vertexAttribState[index].divisor = divisor;
}
void WebGLVertexArrayObjectBase::addMembersToOpaqueRoots(const AbstractLocker&, JSC::AbstractSlotVisitor& visitor)
{
visitor.addOpaqueRoot(m_boundElementArrayBuffer.get());
for (auto& state : m_vertexAttribState)
visitor.addOpaqueRoot(state.bufferBinding.get());
}
}
#endif // ENABLE(WEBGL)
|
