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Side by Side Diff: components/view_manager/gles2/command_buffer_driver.cc

Issue 1344573002: Mandoline: Rename components/view_manager to components/mus (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebased Created 5 years, 3 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "components/view_manager/gles2/command_buffer_driver.h"
6
7 #include "base/bind.h"
8 #include "base/macros.h"
9 #include "base/memory/shared_memory.h"
10 #include "components/view_manager/gles2/command_buffer_type_conversions.h"
11 #include "components/view_manager/gles2/gpu_memory_tracker.h"
12 #include "components/view_manager/gles2/gpu_state.h"
13 #include "components/view_manager/gles2/mojo_buffer_backing.h"
14 #include "gpu/command_buffer/common/constants.h"
15 #include "gpu/command_buffer/common/value_state.h"
16 #include "gpu/command_buffer/service/command_buffer_service.h"
17 #include "gpu/command_buffer/service/context_group.h"
18 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
19 #include "gpu/command_buffer/service/gpu_scheduler.h"
20 #include "gpu/command_buffer/service/image_factory.h"
21 #include "gpu/command_buffer/service/image_manager.h"
22 #include "gpu/command_buffer/service/mailbox_manager.h"
23 #include "gpu/command_buffer/service/memory_tracking.h"
24 #include "gpu/command_buffer/service/sync_point_manager.h"
25 #include "gpu/command_buffer/service/transfer_buffer_manager.h"
26 #include "gpu/command_buffer/service/valuebuffer_manager.h"
27 #include "mojo/converters/geometry/geometry_type_converters.h"
28 #include "mojo/platform_handle/platform_handle_functions.h"
29 #include "ui/gfx/gpu_memory_buffer.h"
30 #include "ui/gfx/vsync_provider.h"
31 #include "ui/gl/gl_context.h"
32 #include "ui/gl/gl_image_shared_memory.h"
33 #include "ui/gl/gl_surface.h"
34
35 namespace gles2 {
36
37 CommandBufferDriver::Client::~Client() {
38 }
39
40 CommandBufferDriver::CommandBufferDriver(scoped_refptr<GpuState> gpu_state)
41 : client_(nullptr),
42 gpu_state_(gpu_state),
43 weak_factory_(this) {
44 }
45
46 CommandBufferDriver::~CommandBufferDriver() {
47 DestroyDecoder();
48 }
49
50 void CommandBufferDriver::Initialize(
51 mojo::CommandBufferSyncClientPtr sync_client,
52 mojo::CommandBufferLostContextObserverPtr loss_observer,
53 mojo::ScopedSharedBufferHandle shared_state) {
54 sync_client_ = sync_client.Pass();
55 loss_observer_ = loss_observer.Pass();
56 bool success = DoInitialize(shared_state.Pass());
57 mojo::GpuCapabilitiesPtr capabilities =
58 success ? mojo::GpuCapabilities::From(decoder_->GetCapabilities())
59 : nullptr;
60 sync_client_->DidInitialize(success, capabilities.Pass());
61 }
62
63 bool CommandBufferDriver::MakeCurrent() {
64 if (!decoder_)
65 return false;
66 if (decoder_->MakeCurrent())
67 return true;
68 DLOG(ERROR) << "Context lost because MakeCurrent failed.";
69 gpu::error::ContextLostReason reason =
70 static_cast<gpu::error::ContextLostReason>(
71 decoder_->GetContextLostReason());
72 command_buffer_->SetContextLostReason(reason);
73 command_buffer_->SetParseError(gpu::error::kLostContext);
74 OnContextLost(reason);
75 return false;
76 }
77
78 bool CommandBufferDriver::DoInitialize(
79 mojo::ScopedSharedBufferHandle shared_state) {
80 surface_ = gfx::GLSurface::CreateOffscreenGLSurface(gfx::Size(1, 1));
81
82 if (!surface_.get())
83 return false;
84
85 // TODO(piman): virtual contexts, gpu preference.
86 context_ = gfx::GLContext::CreateGLContext(
87 gpu_state_->share_group(), surface_.get(), gfx::PreferIntegratedGpu);
88 if (!context_.get())
89 return false;
90
91 if (!context_->MakeCurrent(surface_.get()))
92 return false;
93
94 // TODO(piman): ShaderTranslatorCache is currently per-ContextGroup but
95 // only needs to be per-thread.
96 bool bind_generates_resource = false;
97 scoped_refptr<gpu::gles2::ContextGroup> context_group =
98 new gpu::gles2::ContextGroup(
99 gpu_state_->mailbox_manager(), new GpuMemoryTracker,
100 new gpu::gles2::ShaderTranslatorCache,
101 new gpu::gles2::FramebufferCompletenessCache, nullptr, nullptr,
102 nullptr, bind_generates_resource);
103
104 command_buffer_.reset(
105 new gpu::CommandBufferService(context_group->transfer_buffer_manager()));
106 bool result = command_buffer_->Initialize();
107 DCHECK(result);
108
109 decoder_.reset(::gpu::gles2::GLES2Decoder::Create(context_group.get()));
110 scheduler_.reset(new gpu::GpuScheduler(command_buffer_.get(), decoder_.get(),
111 decoder_.get()));
112 decoder_->set_engine(scheduler_.get());
113 decoder_->SetResizeCallback(
114 base::Bind(&CommandBufferDriver::OnResize, base::Unretained(this)));
115 decoder_->SetWaitSyncPointCallback(base::Bind(
116 &CommandBufferDriver::OnWaitSyncPoint, base::Unretained(this)));
117
118 gpu::gles2::DisallowedFeatures disallowed_features;
119
120 // TODO(piman): attributes.
121 std::vector<int32> attrib_vector;
122 if (!decoder_->Initialize(surface_, context_, false /* offscreen */,
123 gfx::Size(1, 1), disallowed_features,
124 attrib_vector))
125 return false;
126
127 command_buffer_->SetPutOffsetChangeCallback(base::Bind(
128 &gpu::GpuScheduler::PutChanged, base::Unretained(scheduler_.get())));
129 command_buffer_->SetGetBufferChangeCallback(base::Bind(
130 &gpu::GpuScheduler::SetGetBuffer, base::Unretained(scheduler_.get())));
131 command_buffer_->SetParseErrorCallback(
132 base::Bind(&CommandBufferDriver::OnParseError, base::Unretained(this)));
133
134 // TODO(piman): other callbacks
135
136 const size_t kSize = sizeof(gpu::CommandBufferSharedState);
137 scoped_ptr<gpu::BufferBacking> backing(
138 gles2::MojoBufferBacking::Create(shared_state.Pass(), kSize));
139 if (!backing)
140 return false;
141
142 command_buffer_->SetSharedStateBuffer(backing.Pass());
143 return true;
144 }
145
146 void CommandBufferDriver::SetGetBuffer(int32_t buffer) {
147 command_buffer_->SetGetBuffer(buffer);
148 }
149
150 void CommandBufferDriver::Flush(int32_t put_offset) {
151 if (!context_)
152 return;
153 if (!context_->MakeCurrent(surface_.get())) {
154 DLOG(WARNING) << "Context lost";
155 OnContextLost(gpu::error::kUnknown);
156 return;
157 }
158 command_buffer_->Flush(put_offset);
159 }
160
161 void CommandBufferDriver::MakeProgress(int32_t last_get_offset) {
162 // TODO(piman): handle out-of-order.
163 sync_client_->DidMakeProgress(
164 mojo::CommandBufferState::From(command_buffer_->GetLastState()));
165 }
166
167 void CommandBufferDriver::RegisterTransferBuffer(
168 int32_t id,
169 mojo::ScopedSharedBufferHandle transfer_buffer,
170 uint32_t size) {
171 // Take ownership of the memory and map it into this process.
172 // This validates the size.
173 scoped_ptr<gpu::BufferBacking> backing(
174 gles2::MojoBufferBacking::Create(transfer_buffer.Pass(), size));
175 if (!backing) {
176 DVLOG(0) << "Failed to map shared memory.";
177 return;
178 }
179 command_buffer_->RegisterTransferBuffer(id, backing.Pass());
180 }
181
182 void CommandBufferDriver::DestroyTransferBuffer(int32_t id) {
183 command_buffer_->DestroyTransferBuffer(id);
184 }
185
186 void CommandBufferDriver::Echo(const mojo::Callback<void()>& callback) {
187 callback.Run();
188 }
189
190 void CommandBufferDriver::CreateImage(int32_t id,
191 mojo::ScopedHandle memory_handle,
192 int32 type,
193 mojo::SizePtr size,
194 int32_t format,
195 int32_t internal_format) {
196 if (!MakeCurrent())
197 return;
198
199 gpu::gles2::ImageManager* image_manager = decoder_->GetImageManager();
200 if (image_manager->LookupImage(id)) {
201 LOG(ERROR) << "Image already exists with same ID.";
202 return;
203 }
204
205 gfx::BufferFormat gpu_format = static_cast<gfx::BufferFormat>(format);
206 if (!gpu::ImageFactory::IsGpuMemoryBufferFormatSupported(
207 gpu_format, decoder_->GetCapabilities())) {
208 LOG(ERROR) << "Format is not supported.";
209 return;
210 }
211
212 gfx::Size gfx_size = size.To<gfx::Size>();
213 if (!gpu::ImageFactory::IsImageSizeValidForGpuMemoryBufferFormat(
214 gfx_size, gpu_format)) {
215 LOG(ERROR) << "Invalid image size for format.";
216 return;
217 }
218
219 if (!gpu::ImageFactory::IsImageFormatCompatibleWithGpuMemoryBufferFormat(
220 internal_format, gpu_format)) {
221 LOG(ERROR) << "Incompatible image format.";
222 return;
223 }
224
225 if (type != gfx::SHARED_MEMORY_BUFFER) {
226 NOTIMPLEMENTED();
227 return;
228 }
229
230 gfx::GpuMemoryBufferHandle gfx_handle;
231 // TODO(jam): create mojo enum for this and converter
232 gfx_handle.type = static_cast<gfx::GpuMemoryBufferType>(type);
233 gfx_handle.id = gfx::GpuMemoryBufferId(id);
234
235 MojoPlatformHandle platform_handle;
236 MojoResult extract_result = MojoExtractPlatformHandle(
237 memory_handle.release().value(),
238 &platform_handle);
239 if (extract_result != MOJO_RESULT_OK) {
240 NOTREACHED();
241 return;
242 }
243
244 #if defined(OS_WIN)
245 gfx_handle.handle = platform_handle;
246 #else
247 gfx_handle.handle = base::FileDescriptor(platform_handle, false);
248 #endif
249
250 scoped_refptr<gfx::GLImageSharedMemory> image =
251 new gfx::GLImageSharedMemory(gfx_size, internal_format);
252 // TODO(jam): also need a mojo enum for this enum
253 if (!image->Initialize(gfx_handle, gpu_format)) {
254 NOTREACHED();
255 return;
256 }
257
258 image_manager->AddImage(image.get(), id);
259 }
260
261 void CommandBufferDriver::DestroyImage(int32_t id) {
262 gpu::gles2::ImageManager* image_manager = decoder_->GetImageManager();
263 if (!image_manager->LookupImage(id)) {
264 LOG(ERROR) << "Image with ID doesn't exist.";
265 return;
266 }
267 if (!MakeCurrent())
268 return;
269 image_manager->RemoveImage(id);
270 }
271
272 void CommandBufferDriver::OnParseError() {
273 gpu::CommandBuffer::State state = command_buffer_->GetLastState();
274 OnContextLost(state.context_lost_reason);
275 }
276
277 void CommandBufferDriver::OnResize(gfx::Size size, float scale_factor) {
278 surface_->Resize(size);
279 }
280
281 bool CommandBufferDriver::OnWaitSyncPoint(uint32_t sync_point) {
282 if (!sync_point)
283 return true;
284 if (gpu_state_->sync_point_manager()->IsSyncPointRetired(sync_point))
285 return true;
286 scheduler_->SetScheduled(false);
287 gpu_state_->sync_point_manager()->AddSyncPointCallback(
288 sync_point, base::Bind(&CommandBufferDriver::OnSyncPointRetired,
289 weak_factory_.GetWeakPtr()));
290 return scheduler_->IsScheduled();
291 }
292
293 void CommandBufferDriver::OnSyncPointRetired() {
294 scheduler_->SetScheduled(true);
295 }
296
297 void CommandBufferDriver::OnContextLost(uint32_t reason) {
298 loss_observer_->DidLoseContext(reason);
299 client_->DidLoseContext();
300 }
301
302 void CommandBufferDriver::DestroyDecoder() {
303 if (decoder_) {
304 bool have_context = decoder_->MakeCurrent();
305 decoder_->Destroy(have_context);
306 decoder_.reset();
307 }
308 }
309
310 } // namespace gles2
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