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
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
/* 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 "ImageConversion.h"
#include "ImageContainer.h"
#include "libyuv/convert.h"
#include "libyuv/convert_from_argb.h"
#include "mozilla/dom/ImageBitmapBinding.h"
#include "mozilla/dom/ImageUtils.h"
#include "mozilla/gfx/Point.h"
#include "mozilla/RefPtr.h"
#include "mozilla/Result.h"
#include "nsThreadUtils.h"
using mozilla::ImageFormat;
using mozilla::dom::ImageBitmapFormat;
using mozilla::dom::ImageUtils;
using mozilla::gfx::DataSourceSurface;
using mozilla::gfx::SourceSurface;
using mozilla::gfx::SurfaceFormat;
using mozilla::layers::Image;
using mozilla::layers::PlanarYCbCrData;
using mozilla::layers::PlanarYCbCrImage;
static const PlanarYCbCrData* GetPlanarYCbCrData(Image* aImage) {
switch (aImage->GetFormat()) {
case ImageFormat::PLANAR_YCBCR:
return aImage->AsPlanarYCbCrImage()->GetData();
case ImageFormat::NV_IMAGE:
return aImage->AsNVImage()->GetData();
default:
return nullptr;
}
}
static already_AddRefed<SourceSurface> GetSourceSurface(Image* aImage) {
if (!aImage->AsGLImage() || NS_IsMainThread()) {
return aImage->GetAsSourceSurface();
}
// GLImage::GetAsSourceSurface() only supports main thread
RefPtr<SourceSurface> surf;
NS_DispatchAndSpinEventLoopUntilComplete(
"ImageToI420::GLImage::GetSourceSurface"_ns,
mozilla::GetMainThreadSerialEventTarget(),
NS_NewRunnableFunction(
"ImageToI420::GLImage::GetSourceSurface",
[&aImage, &surf]() { surf = aImage->GetAsSourceSurface(); }));
return surf.forget();
}
static nsresult MapRv(int aRv) {
// Docs for libyuv::ConvertToI420 say:
// Returns 0 for successful; -1 for invalid parameter. Non-zero for failure.
switch (aRv) {
case 0:
return NS_OK;
case -1:
return NS_ERROR_INVALID_ARG;
default:
return NS_ERROR_FAILURE;
}
}
namespace mozilla {
nsresult ConvertToI420(Image* aImage, uint8_t* aDestY, int aDestStrideY,
uint8_t* aDestU, int aDestStrideU, uint8_t* aDestV,
int aDestStrideV) {
if (!aImage->IsValid()) {
return NS_ERROR_INVALID_ARG;
}
if (const PlanarYCbCrData* data = GetPlanarYCbCrData(aImage)) {
const ImageUtils imageUtils(aImage);
Maybe<dom::ImageBitmapFormat> format = imageUtils.GetFormat();
if (format.isNothing()) {
MOZ_ASSERT_UNREACHABLE("YUV format conversion not implemented");
return NS_ERROR_NOT_IMPLEMENTED;
}
switch (format.value()) {
case ImageBitmapFormat::YUV420P:
return MapRv(libyuv::I420ToI420(
data->mYChannel, data->mYStride, data->mCbChannel,
data->mCbCrStride, data->mCrChannel, data->mCbCrStride, aDestY,
aDestStrideY, aDestU, aDestStrideU, aDestV, aDestStrideV,
aImage->GetSize().width, aImage->GetSize().height));
case ImageBitmapFormat::YUV422P:
return MapRv(libyuv::I422ToI420(
data->mYChannel, data->mYStride, data->mCbChannel,
data->mCbCrStride, data->mCrChannel, data->mCbCrStride, aDestY,
aDestStrideY, aDestU, aDestStrideU, aDestV, aDestStrideV,
aImage->GetSize().width, aImage->GetSize().height));
case ImageBitmapFormat::YUV444P:
return MapRv(libyuv::I444ToI420(
data->mYChannel, data->mYStride, data->mCbChannel,
data->mCbCrStride, data->mCrChannel, data->mCbCrStride, aDestY,
aDestStrideY, aDestU, aDestStrideU, aDestV, aDestStrideV,
aImage->GetSize().width, aImage->GetSize().height));
case ImageBitmapFormat::YUV420SP_NV12:
return MapRv(libyuv::NV12ToI420(
data->mYChannel, data->mYStride, data->mCbChannel,
data->mCbCrStride, aDestY, aDestStrideY, aDestU, aDestStrideU,
aDestV, aDestStrideV, aImage->GetSize().width,
aImage->GetSize().height));
case ImageBitmapFormat::YUV420SP_NV21:
return MapRv(libyuv::NV21ToI420(
data->mYChannel, data->mYStride, data->mCrChannel,
data->mCbCrStride, aDestY, aDestStrideY, aDestU, aDestStrideU,
aDestV, aDestStrideV, aImage->GetSize().width,
aImage->GetSize().height));
default:
MOZ_ASSERT_UNREACHABLE("YUV format conversion not implemented");
return NS_ERROR_NOT_IMPLEMENTED;
}
}
RefPtr<SourceSurface> surf = GetSourceSurface(aImage);
if (!surf) {
return NS_ERROR_FAILURE;
}
RefPtr<DataSourceSurface> data = surf->GetDataSurface();
if (!data) {
return NS_ERROR_FAILURE;
}
DataSourceSurface::ScopedMap map(data, DataSourceSurface::READ);
if (!map.IsMapped()) {
return NS_ERROR_FAILURE;
}
switch (surf->GetFormat()) {
case SurfaceFormat::B8G8R8A8:
case SurfaceFormat::B8G8R8X8:
return MapRv(libyuv::ARGBToI420(
static_cast<uint8_t*>(map.GetData()), map.GetStride(), aDestY,
aDestStrideY, aDestU, aDestStrideU, aDestV, aDestStrideV,
aImage->GetSize().width, aImage->GetSize().height));
case SurfaceFormat::R5G6B5_UINT16:
return MapRv(libyuv::RGB565ToI420(
static_cast<uint8_t*>(map.GetData()), map.GetStride(), aDestY,
aDestStrideY, aDestU, aDestStrideU, aDestV, aDestStrideV,
aImage->GetSize().width, aImage->GetSize().height));
default:
MOZ_ASSERT_UNREACHABLE("Surface format conversion not implemented");
return NS_ERROR_NOT_IMPLEMENTED;
}
}
nsresult ConvertToNV12(layers::Image* aImage, uint8_t* aDestY, int aDestStrideY,
uint8_t* aDestUV, int aDestStrideUV) {
if (!aImage->IsValid()) {
return NS_ERROR_INVALID_ARG;
}
if (const PlanarYCbCrData* data = GetPlanarYCbCrData(aImage)) {
const ImageUtils imageUtils(aImage);
Maybe<dom::ImageBitmapFormat> format = imageUtils.GetFormat();
if (format.isNothing()) {
MOZ_ASSERT_UNREACHABLE("YUV format conversion not implemented");
return NS_ERROR_NOT_IMPLEMENTED;
}
if (format.value() != ImageBitmapFormat::YUV420P) {
NS_WARNING("ConvertToNV12: Convert YUV data in I420 only");
return NS_ERROR_NOT_IMPLEMENTED;
}
return MapRv(libyuv::I420ToNV12(
data->mYChannel, data->mYStride, data->mCbChannel, data->mCbCrStride,
data->mCrChannel, data->mCbCrStride, aDestY, aDestStrideY, aDestUV,
aDestStrideUV, aImage->GetSize().width, aImage->GetSize().height));
}
RefPtr<SourceSurface> surf = GetSourceSurface(aImage);
if (!surf) {
return NS_ERROR_FAILURE;
}
RefPtr<DataSourceSurface> data = surf->GetDataSurface();
if (!data) {
return NS_ERROR_FAILURE;
}
DataSourceSurface::ScopedMap map(data, DataSourceSurface::READ);
if (!map.IsMapped()) {
return NS_ERROR_FAILURE;
}
if (surf->GetFormat() != SurfaceFormat::B8G8R8A8 &&
surf->GetFormat() != SurfaceFormat::B8G8R8X8) {
NS_WARNING("ConvertToNV12: Convert SurfaceFormat in BGR* only");
return NS_ERROR_NOT_IMPLEMENTED;
}
return MapRv(
libyuv::ARGBToNV12(static_cast<uint8_t*>(map.GetData()), map.GetStride(),
aDestY, aDestStrideY, aDestUV, aDestStrideUV,
aImage->GetSize().width, aImage->GetSize().height));
}
} // namespace mozilla
|
