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
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
//
// Copyright (c) 2013 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// VertexBuffer11.cpp: Defines the D3D11 VertexBuffer implementation.
#include "libANGLE/renderer/d3d/d3d11/VertexBuffer11.h"
#include "libANGLE/Buffer.h"
#include "libANGLE/VertexAttribute.h"
#include "libANGLE/formatutils.h"
#include "libANGLE/renderer/d3d/d3d11/Buffer11.h"
#include "libANGLE/renderer/d3d/d3d11/formatutils11.h"
#include "libANGLE/renderer/d3d/d3d11/Renderer11.h"
#include "libANGLE/renderer/d3d/d3d11/renderer11_utils.h"
namespace rx
{
VertexBuffer11::VertexBuffer11(Renderer11 *const renderer) : mRenderer(renderer)
{
mBuffer = NULL;
mBufferSize = 0;
mDynamicUsage = false;
mMappedResourceData = NULL;
}
VertexBuffer11::~VertexBuffer11()
{
ASSERT(mMappedResourceData == NULL);
SafeRelease(mBuffer);
}
gl::Error VertexBuffer11::initialize(unsigned int size, bool dynamicUsage)
{
SafeRelease(mBuffer);
updateSerial();
if (size > 0)
{
ID3D11Device *dxDevice = mRenderer->getDevice();
D3D11_BUFFER_DESC bufferDesc;
bufferDesc.ByteWidth = size;
bufferDesc.Usage = D3D11_USAGE_DYNAMIC;
bufferDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
bufferDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
bufferDesc.MiscFlags = 0;
bufferDesc.StructureByteStride = 0;
HRESULT result = dxDevice->CreateBuffer(&bufferDesc, NULL, &mBuffer);
if (FAILED(result))
{
return gl::Error(GL_OUT_OF_MEMORY,
"Failed to allocate internal vertex buffer of size, %lu.", size);
}
if (dynamicUsage)
{
d3d11::SetDebugName(mBuffer, "VertexBuffer11 (dynamic)");
}
else
{
d3d11::SetDebugName(mBuffer, "VertexBuffer11 (static)");
}
}
mBufferSize = size;
mDynamicUsage = dynamicUsage;
return gl::Error(GL_NO_ERROR);
}
gl::Error VertexBuffer11::mapResource()
{
if (mMappedResourceData == NULL)
{
ID3D11DeviceContext *dxContext = mRenderer->getDeviceContext();
D3D11_MAPPED_SUBRESOURCE mappedResource;
HRESULT result =
dxContext->Map(mBuffer, 0, D3D11_MAP_WRITE_NO_OVERWRITE, 0, &mappedResource);
if (FAILED(result))
{
return gl::Error(GL_OUT_OF_MEMORY,
"Failed to map internal vertex buffer, HRESULT: 0x%08x.", result);
}
mMappedResourceData = reinterpret_cast<uint8_t *>(mappedResource.pData);
}
return gl::Error(GL_NO_ERROR);
}
void VertexBuffer11::hintUnmapResource()
{
if (mMappedResourceData != NULL)
{
ID3D11DeviceContext *dxContext = mRenderer->getDeviceContext();
dxContext->Unmap(mBuffer, 0);
mMappedResourceData = NULL;
}
}
gl::Error VertexBuffer11::storeVertexAttributes(const gl::VertexAttribute &attrib,
GLenum currentValueType,
GLint start,
GLsizei count,
GLsizei instances,
unsigned int offset,
const uint8_t *sourceData)
{
if (!mBuffer)
{
return gl::Error(GL_OUT_OF_MEMORY, "Internal vertex buffer is not initialized.");
}
int inputStride = static_cast<int>(ComputeVertexAttributeStride(attrib));
// This will map the resource if it isn't already mapped.
ANGLE_TRY(mapResource());
uint8_t *output = mMappedResourceData + offset;
const uint8_t *input = sourceData;
if (instances == 0 || attrib.divisor == 0)
{
input += inputStride * start;
}
gl::VertexFormatType vertexFormatType = gl::GetVertexFormatType(attrib, currentValueType);
const D3D_FEATURE_LEVEL featureLevel = mRenderer->getRenderer11DeviceCaps().featureLevel;
const d3d11::VertexFormat &vertexFormatInfo =
d3d11::GetVertexFormatInfo(vertexFormatType, featureLevel);
ASSERT(vertexFormatInfo.copyFunction != NULL);
vertexFormatInfo.copyFunction(input, inputStride, count, output);
return gl::NoError();
}
unsigned int VertexBuffer11::getBufferSize() const
{
return mBufferSize;
}
gl::Error VertexBuffer11::setBufferSize(unsigned int size)
{
if (size > mBufferSize)
{
return initialize(size, mDynamicUsage);
}
else
{
return gl::Error(GL_NO_ERROR);
}
}
gl::Error VertexBuffer11::discard()
{
if (!mBuffer)
{
return gl::Error(GL_OUT_OF_MEMORY, "Internal vertex buffer is not initialized.");
}
ID3D11DeviceContext *dxContext = mRenderer->getDeviceContext();
D3D11_MAPPED_SUBRESOURCE mappedResource;
HRESULT result = dxContext->Map(mBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
if (FAILED(result))
{
return gl::Error(GL_OUT_OF_MEMORY,
"Failed to map internal buffer for discarding, HRESULT: 0x%08x", result);
}
dxContext->Unmap(mBuffer, 0);
return gl::Error(GL_NO_ERROR);
}
ID3D11Buffer *VertexBuffer11::getBuffer() const
{
return mBuffer;
}
} // namespace rx
|
