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
241
242
243
244
245
246
247
248
|
/* -*- 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 "RenderAndroidHardwareBufferTextureHost.h"
#include "mozilla/layers/AndroidHardwareBuffer.h"
#include "mozilla/webrender/RenderThread.h"
#include "mozilla/gfx/2D.h"
#include "GLContextEGL.h"
#include "GLLibraryEGL.h"
#include "GLReadTexImageHelper.h"
#include "OGLShaderConfig.h"
namespace mozilla {
namespace wr {
RenderAndroidHardwareBufferTextureHost::RenderAndroidHardwareBufferTextureHost(
layers::AndroidHardwareBuffer* aAndroidHardwareBuffer)
: mAndroidHardwareBuffer(aAndroidHardwareBuffer),
mEGLImage(EGL_NO_IMAGE),
mTextureHandle(0) {
MOZ_ASSERT(mAndroidHardwareBuffer);
MOZ_COUNT_CTOR_INHERITED(RenderAndroidHardwareBufferTextureHost,
RenderTextureHost);
}
RenderAndroidHardwareBufferTextureHost::
~RenderAndroidHardwareBufferTextureHost() {
MOZ_COUNT_DTOR_INHERITED(RenderAndroidHardwareBufferTextureHost,
RenderTextureHost);
DeleteTextureHandle();
DestroyEGLImage();
}
gfx::IntSize RenderAndroidHardwareBufferTextureHost::GetSize() const {
if (mAndroidHardwareBuffer) {
return mAndroidHardwareBuffer->mSize;
}
return gfx::IntSize();
}
bool RenderAndroidHardwareBufferTextureHost::EnsureLockable() {
if (!mAndroidHardwareBuffer) {
return false;
}
auto fenceFd = mAndroidHardwareBuffer->GetAndResetAcquireFence();
if (fenceFd.IsValid()) {
const auto& gle = gl::GLContextEGL::Cast(mGL);
const auto& egl = gle->mEgl;
auto rawFD = fenceFd.TakePlatformHandle();
const EGLint attribs[] = {LOCAL_EGL_SYNC_NATIVE_FENCE_FD_ANDROID,
rawFD.get(), LOCAL_EGL_NONE};
EGLSync sync =
egl->fCreateSync(LOCAL_EGL_SYNC_NATIVE_FENCE_ANDROID, attribs);
if (sync) {
// Release fd here, since it is owned by EGLSync
Unused << rawFD.release();
if (egl->IsExtensionSupported(gl::EGLExtension::KHR_wait_sync)) {
egl->fWaitSync(sync, 0);
} else {
egl->fClientWaitSync(sync, 0, LOCAL_EGL_FOREVER);
}
egl->fDestroySync(sync);
} else {
gfxCriticalNote << "Failed to create EGLSync from acquire fence fd";
}
}
if (mTextureHandle) {
return true;
}
if (!mEGLImage) {
// XXX add crop handling for video
// Should only happen the first time.
const auto& gle = gl::GLContextEGL::Cast(mGL);
const auto& egl = gle->mEgl;
const EGLint attrs[] = {
LOCAL_EGL_IMAGE_PRESERVED,
LOCAL_EGL_TRUE,
LOCAL_EGL_NONE,
LOCAL_EGL_NONE,
};
EGLClientBuffer clientBuffer = egl->mLib->fGetNativeClientBufferANDROID(
mAndroidHardwareBuffer->GetNativeBuffer());
mEGLImage = egl->fCreateImage(
EGL_NO_CONTEXT, LOCAL_EGL_NATIVE_BUFFER_ANDROID, clientBuffer, attrs);
}
MOZ_ASSERT(mEGLImage);
mGL->fGenTextures(1, &mTextureHandle);
mGL->fBindTexture(LOCAL_GL_TEXTURE_EXTERNAL, mTextureHandle);
mGL->fTexParameteri(LOCAL_GL_TEXTURE_EXTERNAL, LOCAL_GL_TEXTURE_WRAP_T,
LOCAL_GL_CLAMP_TO_EDGE);
mGL->fTexParameteri(LOCAL_GL_TEXTURE_EXTERNAL, LOCAL_GL_TEXTURE_WRAP_S,
LOCAL_GL_CLAMP_TO_EDGE);
mGL->fEGLImageTargetTexture2D(LOCAL_GL_TEXTURE_EXTERNAL, mEGLImage);
ActivateBindAndTexParameteri(mGL, LOCAL_GL_TEXTURE0,
LOCAL_GL_TEXTURE_EXTERNAL_OES, mTextureHandle);
return true;
}
wr::WrExternalImage RenderAndroidHardwareBufferTextureHost::Lock(
uint8_t aChannelIndex, gl::GLContext* aGL) {
MOZ_ASSERT(aChannelIndex == 0);
if (mGL.get() != aGL) {
if (mGL) {
// This should not happen.
MOZ_ASSERT_UNREACHABLE("Unexpected GL context");
return InvalidToWrExternalImage();
}
mGL = aGL;
}
if (!mGL || !mGL->MakeCurrent()) {
return InvalidToWrExternalImage();
}
if (!EnsureLockable()) {
return InvalidToWrExternalImage();
}
const auto uvs = GetUvCoords(GetSize());
return NativeTextureToWrExternalImage(
mTextureHandle, uvs.first.x, uvs.first.y, uvs.second.x, uvs.second.y);
}
void RenderAndroidHardwareBufferTextureHost::Unlock() {}
size_t RenderAndroidHardwareBufferTextureHost::Bytes() {
return GetSize().width * GetSize().height *
BytesPerPixel(mAndroidHardwareBuffer->mFormat);
}
void RenderAndroidHardwareBufferTextureHost::DeleteTextureHandle() {
if (!mTextureHandle) {
return;
}
MOZ_ASSERT(mGL);
mGL->fDeleteTextures(1, &mTextureHandle);
mTextureHandle = 0;
}
void RenderAndroidHardwareBufferTextureHost::DestroyEGLImage() {
if (!mEGLImage) {
return;
}
MOZ_ASSERT(mGL);
const auto& gle = gl::GLContextEGL::Cast(mGL);
const auto& egl = gle->mEgl;
egl->fDestroyImage(mEGLImage);
mEGLImage = EGL_NO_IMAGE;
}
gfx::SurfaceFormat RenderAndroidHardwareBufferTextureHost::GetFormat() const {
MOZ_ASSERT(mAndroidHardwareBuffer->mFormat == gfx::SurfaceFormat::R8G8B8A8 ||
mAndroidHardwareBuffer->mFormat == gfx::SurfaceFormat::R8G8B8X8);
if (mAndroidHardwareBuffer->mFormat == gfx::SurfaceFormat::R8G8B8A8) {
return gfx::SurfaceFormat::B8G8R8A8;
}
if (mAndroidHardwareBuffer->mFormat == gfx::SurfaceFormat::R8G8B8X8) {
return gfx::SurfaceFormat::B8G8R8X8;
}
gfxCriticalNoteOnce
<< "Unexpected color format of RenderAndroidSurfaceTextureHost";
return gfx::SurfaceFormat::UNKNOWN;
}
already_AddRefed<gfx::DataSourceSurface>
RenderAndroidHardwareBufferTextureHost::ReadTexImage() {
if (!mGL) {
mGL = RenderThread::Get()->SingletonGL();
if (!mGL) {
return nullptr;
}
}
if (!EnsureLockable()) {
return nullptr;
}
/* Allocate resulting image surface */
int32_t stride = GetSize().width * BytesPerPixel(GetFormat());
RefPtr<gfx::DataSourceSurface> surf =
gfx::Factory::CreateDataSourceSurfaceWithStride(GetSize(), GetFormat(),
stride);
if (!surf) {
return nullptr;
}
layers::ShaderConfigOGL config = layers::ShaderConfigFromTargetAndFormat(
LOCAL_GL_TEXTURE_EXTERNAL, mAndroidHardwareBuffer->mFormat);
int shaderConfig = config.mFeatures;
bool ret = mGL->ReadTexImageHelper()->ReadTexImage(
surf, mTextureHandle, LOCAL_GL_TEXTURE_EXTERNAL, GetSize(), shaderConfig,
/* aYInvert */ false);
if (!ret) {
return nullptr;
}
return surf.forget();
}
bool RenderAndroidHardwareBufferTextureHost::MapPlane(
RenderCompositor* aCompositor, uint8_t aChannelIndex,
PlaneInfo& aPlaneInfo) {
RefPtr<gfx::DataSourceSurface> readback = ReadTexImage();
if (!readback) {
return false;
}
gfx::DataSourceSurface::MappedSurface map;
if (!readback->Map(gfx::DataSourceSurface::MapType::READ, &map)) {
return false;
}
mReadback = readback;
aPlaneInfo.mSize = GetSize();
aPlaneInfo.mStride = map.mStride;
aPlaneInfo.mData = map.mData;
return true;
}
void RenderAndroidHardwareBufferTextureHost::UnmapPlanes() {
if (mReadback) {
mReadback->Unmap();
mReadback = nullptr;
}
}
} // namespace wr
} // namespace mozilla
|
