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
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "libyuv.h"
#include "MacIOSurfaceHelpers.h"
#include "mozilla/gfx/MacIOSurface.h"
#include "mozilla/ScopeExit.h"
#include "YCbCrUtils.h"
namespace mozilla {
using namespace gfx;
namespace layers {
#define ALIGNED_32(x) ((x + 31) & ~31)
#define ALIGNEDPTR_32(x) \
reinterpret_cast<uint8_t*>((reinterpret_cast<uintptr_t>(x) + 31) & ~31)
static nsresult CopyFromLockedMacIOSurface(MacIOSurface* aSurface,
uint8_t* aData, int32_t aStride,
const IntSize& aSize,
SurfaceFormat aFormat) {
size_t bytesPerRow = aSurface->GetBytesPerRow();
SurfaceFormat ioFormat = aSurface->GetFormat();
if ((ioFormat == SurfaceFormat::NV12 || ioFormat == SurfaceFormat::YUY2) &&
(aSize.width > PlanarYCbCrImage::MAX_DIMENSION ||
aSize.height > PlanarYCbCrImage::MAX_DIMENSION)) {
return NS_ERROR_FAILURE;
}
if (ioFormat == SurfaceFormat::NV12) {
/* Extract and separate the CbCr planes */
size_t cbCrStride = aSurface->GetBytesPerRow(1);
size_t cbCrWidth = aSurface->GetDevicePixelWidth(1);
size_t cbCrHeight = aSurface->GetDevicePixelHeight(1);
auto cbPlane = MakeUnique<uint8_t[]>(cbCrWidth * cbCrHeight);
auto crPlane = MakeUnique<uint8_t[]>(cbCrWidth * cbCrHeight);
uint8_t* src = (uint8_t*)aSurface->GetBaseAddressOfPlane(1);
uint8_t* cbDest = cbPlane.get();
uint8_t* crDest = crPlane.get();
for (size_t i = 0; i < cbCrHeight; i++) {
uint8_t* rowSrc = src + cbCrStride * i;
for (size_t j = 0; j < cbCrWidth; j++) {
*cbDest = *rowSrc;
cbDest++;
rowSrc++;
*crDest = *rowSrc;
crDest++;
rowSrc++;
}
}
/* Convert to RGB */
PlanarYCbCrData data;
data.mYChannel = (uint8_t*)aSurface->GetBaseAddressOfPlane(0);
data.mYStride = aSurface->GetBytesPerRow(0);
data.mCbChannel = cbPlane.get();
data.mCrChannel = crPlane.get();
data.mCbCrStride = cbCrWidth;
data.mPictureRect = IntRect(IntPoint(0, 0), aSize);
data.mYUVColorSpace = aSurface->GetYUVColorSpace();
data.mColorPrimaries = aSurface->mColorPrimaries;
data.mColorRange = aSurface->IsFullRange() ? gfx::ColorRange::FULL
: gfx::ColorRange::LIMITED;
data.mChromaSubsampling = ChromaSubsampling::HALF_WIDTH_AND_HEIGHT;
nsresult result =
ConvertYCbCrToRGB(data, SurfaceFormat::B8G8R8X8, aSize, aData, aStride);
MOZ_ASSERT(NS_SUCCEEDED(result), "Failed to convert YUV into RGB data");
return result;
}
if (ioFormat == SurfaceFormat::YUY2) {
if (aSize.width == ALIGNED_32(aSize.width)) {
// Optimization when width is aligned to 32.
libyuv::ConvertToARGB((uint8_t*)aSurface->GetBaseAddress(),
0 /* not used */, aData, aStride, 0, 0, aSize.width,
aSize.height, aSize.width, aSize.height,
libyuv::kRotate0, libyuv::FOURCC_YUYV);
} else {
/* Convert to YV16 */
size_t cbCrWidth = (aSize.width + 1) >> 1;
size_t cbCrHeight = aSize.height;
// Ensure our stride is a multiple of 32 to allow for memory aligned rows.
size_t cbCrStride = ALIGNED_32(cbCrWidth);
size_t strideDelta = cbCrStride - cbCrWidth;
MOZ_ASSERT(strideDelta <= 31);
auto yPlane = MakeUnique<uint8_t[]>(cbCrStride * 2 * aSize.height + 31);
auto cbPlane = MakeUnique<uint8_t[]>(cbCrStride * cbCrHeight + 31);
auto crPlane = MakeUnique<uint8_t[]>(cbCrStride * cbCrHeight + 31);
uint8_t* src = (uint8_t*)aSurface->GetBaseAddress();
uint8_t* yDest = ALIGNEDPTR_32(yPlane.get());
uint8_t* cbDest = ALIGNEDPTR_32(cbPlane.get());
uint8_t* crDest = ALIGNEDPTR_32(crPlane.get());
for (int32_t i = 0; i < aSize.height; i++) {
uint8_t* rowSrc = src + bytesPerRow * i;
for (size_t j = 0; j < cbCrWidth; j++) {
*yDest = *rowSrc;
yDest++;
rowSrc++;
*cbDest = *rowSrc;
cbDest++;
rowSrc++;
*yDest = *rowSrc;
yDest++;
rowSrc++;
*crDest = *rowSrc;
crDest++;
rowSrc++;
}
if (strideDelta) {
cbDest += strideDelta;
crDest += strideDelta;
yDest += strideDelta << 1;
}
}
/* Convert to RGB */
PlanarYCbCrData data;
data.mYChannel = ALIGNEDPTR_32(yPlane.get());
data.mYStride = cbCrStride * 2;
data.mCbChannel = ALIGNEDPTR_32(cbPlane.get());
data.mCrChannel = ALIGNEDPTR_32(crPlane.get());
data.mCbCrStride = cbCrStride;
data.mPictureRect = IntRect(IntPoint(0, 0), aSize);
data.mYUVColorSpace = aSurface->GetYUVColorSpace();
data.mColorPrimaries = aSurface->mColorPrimaries;
data.mColorRange = aSurface->IsFullRange() ? gfx::ColorRange::FULL
: gfx::ColorRange::LIMITED;
data.mChromaSubsampling = ChromaSubsampling::HALF_WIDTH;
nsresult result = ConvertYCbCrToRGB(data, SurfaceFormat::B8G8R8X8, aSize,
aData, aStride);
MOZ_ASSERT(NS_SUCCEEDED(result), "Failed to convert YUV into RGB data");
return result;
}
} else {
unsigned char* ioData = (unsigned char*)aSurface->GetBaseAddress();
for (int32_t i = 0; i < aSize.height; ++i) {
memcpy(aData + i * aStride, ioData + i * bytesPerRow, aSize.width * 4);
}
}
return NS_OK;
}
already_AddRefed<SourceSurface> CreateSourceSurfaceFromMacIOSurface(
MacIOSurface* aSurface, gfx::DataSourceSurface* aDataSurface) {
if (NS_WARN_IF(!aSurface->Lock())) {
return nullptr;
}
auto scopeExit = MakeScopeExit([&]() { aSurface->Unlock(); });
size_t ioWidth = aSurface->GetDevicePixelWidth();
size_t ioHeight = aSurface->GetDevicePixelHeight();
IntSize size((int32_t)ioWidth, (int32_t)ioHeight);
SurfaceFormat ioFormat = aSurface->GetFormat();
SurfaceFormat format =
(ioFormat == SurfaceFormat::NV12 || ioFormat == SurfaceFormat::YUY2)
? SurfaceFormat::B8G8R8X8
: SurfaceFormat::B8G8R8A8;
RefPtr<DataSourceSurface> dataSurface;
if (aDataSurface) {
MOZ_ASSERT(aDataSurface->GetSize() == size);
MOZ_ASSERT(aDataSurface->GetFormat() == format);
if (aDataSurface->GetSize() == size &&
aDataSurface->GetFormat() == format) {
dataSurface = aDataSurface;
}
}
if (!dataSurface) {
dataSurface = Factory::CreateDataSourceSurface(size, format);
if (NS_WARN_IF(!dataSurface)) {
return nullptr;
}
}
DataSourceSurface::ScopedMap map(dataSurface, DataSourceSurface::WRITE);
if (NS_WARN_IF(!map.IsMapped())) {
return nullptr;
}
nsresult rv = CopyFromLockedMacIOSurface(aSurface, map.GetData(),
map.GetStride(), size, format);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
return dataSurface.forget();
}
nsresult CreateSurfaceDescriptorBufferFromMacIOSurface(
MacIOSurface* aSurface, SurfaceDescriptorBuffer& aSdBuffer,
Image::BuildSdbFlags aFlags,
const std::function<MemoryOrShmem(uint32_t)>& aAllocate) {
if (NS_WARN_IF(!aSurface->Lock())) {
return NS_ERROR_FAILURE;
}
auto scopeExit = MakeScopeExit([&]() { aSurface->Unlock(); });
size_t ioWidth = aSurface->GetDevicePixelWidth();
size_t ioHeight = aSurface->GetDevicePixelHeight();
IntSize size((int32_t)ioWidth, (int32_t)ioHeight);
SurfaceFormat ioFormat = aSurface->GetFormat();
SurfaceFormat format =
(ioFormat == SurfaceFormat::NV12 || ioFormat == SurfaceFormat::YUY2)
? SurfaceFormat::B8G8R8X8
: SurfaceFormat::B8G8R8A8;
uint8_t* buffer = nullptr;
int32_t stride = 0;
nsresult rv = Image::AllocateSurfaceDescriptorBufferRgb(
size, format, buffer, aSdBuffer, stride, aAllocate);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return CopyFromLockedMacIOSurface(aSurface, buffer, stride, size, format);
}
} // namespace layers
} // namespace mozilla
|
