forked from chromium/chromium
-
Notifications
You must be signed in to change notification settings - Fork 0
/
in_process_command_buffer.cc
1580 lines (1356 loc) · 58.2 KB
/
in_process_command_buffer.cc
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
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gpu/ipc/in_process_command_buffer.h"
#include <stddef.h>
#include <stdint.h>
#include <set>
#include <utility>
#include "base/atomic_sequence_num.h"
#include "base/bind.h"
#include "base/callback_helpers.h"
#include "base/command_line.h"
#include "base/containers/queue.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/memory/weak_ptr.h"
#include "base/numerics/safe_conversions.h"
#include "base/sequence_checker.h"
#include "base/single_thread_task_runner.h"
#include "base/threading/thread.h"
#include "base/threading/thread_task_runner_handle.h"
#include "base/time/time.h"
#include "base/trace_event/memory_dump_manager.h"
#include "base/trace_event/trace_event.h"
#include "build/build_config.h"
#include "cc/base/completion_event.h"
#include "components/viz/common/features.h"
#include "gpu/command_buffer/client/gpu_control_client.h"
#include "gpu/command_buffer/client/gpu_memory_buffer_manager.h"
#include "gpu/command_buffer/client/shared_image_interface.h"
#include "gpu/command_buffer/common/gpu_memory_buffer_support.h"
#include "gpu/command_buffer/common/presentation_feedback_utils.h"
#include "gpu/command_buffer/common/swap_buffers_complete_params.h"
#include "gpu/command_buffer/common/swap_buffers_flags.h"
#include "gpu/command_buffer/common/sync_token.h"
#include "gpu/command_buffer/service/command_buffer_service.h"
#include "gpu/command_buffer/service/context_group.h"
#include "gpu/command_buffer/service/gl_context_virtual.h"
#include "gpu/command_buffer/service/gles2_cmd_decoder.h"
#include "gpu/command_buffer/service/gpu_command_buffer_memory_tracker.h"
#include "gpu/command_buffer/service/gpu_fence_manager.h"
#include "gpu/command_buffer/service/gpu_tracer.h"
#include "gpu/command_buffer/service/gr_shader_cache.h"
#include "gpu/command_buffer/service/image_factory.h"
#include "gpu/command_buffer/service/mailbox_manager_factory.h"
#include "gpu/command_buffer/service/memory_program_cache.h"
#include "gpu/command_buffer/service/memory_tracking.h"
#include "gpu/command_buffer/service/query_manager.h"
#include "gpu/command_buffer/service/raster_decoder.h"
#include "gpu/command_buffer/service/scheduler.h"
#include "gpu/command_buffer/service/service_utils.h"
#include "gpu/command_buffer/service/shared_context_state.h"
#include "gpu/command_buffer/service/sync_point_manager.h"
#include "gpu/command_buffer/service/webgpu_decoder.h"
#include "gpu/config/gpu_crash_keys.h"
#include "gpu/config/gpu_feature_info.h"
#include "gpu/config/gpu_preferences.h"
#include "gpu/config/gpu_switches.h"
#include "gpu/ipc/command_buffer_task_executor.h"
#include "gpu/ipc/common/gpu_client_ids.h"
#include "gpu/ipc/host/gpu_memory_buffer_support.h"
#include "gpu/ipc/service/gpu_channel_manager_delegate.h"
#include "gpu/ipc/service/image_transport_surface.h"
#include "gpu/ipc/shared_image_interface_in_process.h"
#include "gpu/ipc/single_task_sequence.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/gpu_fence.h"
#include "ui/gfx/gpu_fence_handle.h"
#include "ui/gl/gl_bindings.h"
#include "ui/gl/gl_context.h"
#include "ui/gl/gl_image.h"
#include "ui/gl/gl_image_shared_memory.h"
#include "ui/gl/gl_share_group.h"
#include "ui/gl/gl_version_info.h"
#include "ui/gl/init/create_gr_gl_interface.h"
#include "ui/gl/init/gl_factory.h"
#if defined(OS_WIN)
#include <windows.h>
#include "base/process/process_handle.h"
#endif
#if defined(USE_OZONE)
#include "ui/base/ui_base_features.h"
#include "ui/ozone/public/ozone_platform.h"
#include "ui/ozone/public/platform_window_surface.h"
#include "ui/ozone/public/surface_factory_ozone.h"
#endif
namespace gpu {
namespace {
base::AtomicSequenceNumber g_next_image_id;
template <typename T>
base::OnceClosure WrapTaskWithResult(base::OnceCallback<T(void)> task,
T* result,
base::WaitableEvent* completion) {
auto wrapper = [](base::OnceCallback<T(void)> task, T* result,
base::WaitableEvent* completion) {
*result = std::move(task).Run();
completion->Signal();
};
return base::BindOnce(wrapper, std::move(task), result, completion);
}
class ScopedEvent {
public:
explicit ScopedEvent(base::WaitableEvent* event) : event_(event) {}
~ScopedEvent() { event_->Signal(); }
private:
base::WaitableEvent* event_;
};
// Has to be called after Initialize.
void AddGLSurfaceRefOnGpuThread(gl::GLSurface* surface) {
surface->AddRef();
}
void ReleaseGLSurfaceOnGpuThread(gl::GLSurface* surface,
cc::CompletionEvent* event) {
surface->Release();
event->Signal();
}
void ReleaseGLSurfaceOnClientThread(gl::GLSurface* surface,
CommandBufferTaskExecutor* task_executor) {
cc::CompletionEvent event;
task_executor->ScheduleOutOfOrderTask(base::BindOnce(
&ReleaseGLSurfaceOnGpuThread, base::Unretained(surface), &event));
event.Wait();
}
} // namespace
InProcessCommandBuffer::SharedImageInterfaceHelper::SharedImageInterfaceHelper(
InProcessCommandBuffer* command_buffer)
: command_buffer_(command_buffer) {}
void InProcessCommandBuffer::SharedImageInterfaceHelper::SetError() {
// Signal errors by losing the command buffer.
command_buffer_->command_buffer_->SetParseError(error::kLostContext);
}
void InProcessCommandBuffer::SharedImageInterfaceHelper::WrapTaskWithGpuCheck(
base::OnceClosure task) {
command_buffer_->RunTaskOnGpuThread(std::move(task));
}
bool InProcessCommandBuffer::SharedImageInterfaceHelper::EnableWrappedSkImage()
const {
// We need WrappedSkImage to support creating a SharedImage with pixel data
// when GL is unavailable. This is used in various unit tests.
return command_buffer_->context_state_ &&
!command_buffer_->context_state_->GrContextIsGL();
}
InProcessCommandBuffer::InProcessCommandBuffer(
CommandBufferTaskExecutor* task_executor,
const GURL& active_url)
: active_url_(active_url),
flush_event_(base::WaitableEvent::ResetPolicy::AUTOMATIC,
base::WaitableEvent::InitialState::NOT_SIGNALED),
task_executor_(task_executor),
fence_sync_wait_event_(base::WaitableEvent::ResetPolicy::AUTOMATIC,
base::WaitableEvent::InitialState::NOT_SIGNALED) {
// This binds the client sequence checker to the current sequence.
DCHECK_CALLED_ON_VALID_SEQUENCE(client_sequence_checker_);
// Detach gpu sequence checker because we want to bind it to the gpu sequence,
// and not the current (client) sequence except for webview (see Initialize).
DETACH_FROM_SEQUENCE(gpu_sequence_checker_);
DCHECK(task_executor_);
}
InProcessCommandBuffer::~InProcessCommandBuffer() {
Destroy();
}
gpu::ServiceTransferCache* InProcessCommandBuffer::GetTransferCacheForTest()
const {
return static_cast<raster::RasterDecoder*>(decoder_.get())
->GetTransferCacheForTest();
}
int InProcessCommandBuffer::GetRasterDecoderIdForTest() const {
return static_cast<raster::RasterDecoder*>(decoder_.get())
->DecoderIdForTest();
}
webgpu::WebGPUDecoder* InProcessCommandBuffer::GetWebGPUDecoderForTest() const {
return static_cast<webgpu::WebGPUDecoder*>(decoder_.get());
}
gpu::SharedImageInterface* InProcessCommandBuffer::GetSharedImageInterface()
const {
return shared_image_interface_.get();
}
// This call happens after Initialize. Initialize blocks on finishing gpu thread
// task to create GLSurface, so when this call happens, we have a valid
// GLSurface.
base::ScopedClosureRunner InProcessCommandBuffer::GetCacheBackBufferCb() {
// It is safe to use base::Unretained for |surface_| here since the we use a
// synchronous task to create and destroy it from the client thread.
task_executor_->ScheduleOutOfOrderTask(base::BindOnce(
&AddGLSurfaceRefOnGpuThread, base::Unretained(surface_.get())));
// Also safe to use base::Unretained for |task_executor_| since the caller is
// supposed to guarentee that it outlives the callback.
return base::ScopedClosureRunner(base::BindOnce(
&ReleaseGLSurfaceOnClientThread, base::Unretained(surface_.get()),
base::Unretained(task_executor_)));
}
bool InProcessCommandBuffer::MakeCurrent() {
DCHECK_CALLED_ON_VALID_SEQUENCE(gpu_sequence_checker_);
if (!context_) {
return true;
}
if (error::IsError(command_buffer_->GetState().error)) {
DLOG(ERROR) << "MakeCurrent failed because context lost.";
return false;
}
if (!decoder_->MakeCurrent()) {
DLOG(ERROR) << "Context lost because MakeCurrent failed.";
command_buffer_->SetParseError(error::kLostContext);
return false;
}
return true;
}
absl::optional<gles2::ProgramCache::ScopedCacheUse>
InProcessCommandBuffer::CreateCacheUse() {
absl::optional<gles2::ProgramCache::ScopedCacheUse> cache_use;
if (context_group_->has_program_cache()) {
cache_use.emplace(context_group_->get_program_cache(),
base::BindRepeating(&DecoderClient::CacheShader,
base::Unretained(this)));
}
return cache_use;
}
gpu::ContextResult InProcessCommandBuffer::Initialize(
scoped_refptr<gl::GLSurface> surface,
bool is_offscreen,
SurfaceHandle surface_handle,
const ContextCreationAttribs& attribs,
GpuMemoryBufferManager* gpu_memory_buffer_manager,
ImageFactory* image_factory,
GpuChannelManagerDelegate* gpu_channel_manager_delegate,
scoped_refptr<base::SingleThreadTaskRunner> task_runner,
SingleTaskSequence* task_sequence,
DisplayCompositorMemoryAndTaskControllerOnGpu* gpu_dependency,
gpu::raster::GrShaderCache* gr_shader_cache,
GpuProcessActivityFlags* activity_flags) {
DCHECK_CALLED_ON_VALID_SEQUENCE(client_sequence_checker_);
TRACE_EVENT0("gpu", "InProcessCommandBuffer::Initialize");
is_offscreen_ = is_offscreen;
gpu_memory_buffer_manager_ = gpu_memory_buffer_manager;
gpu_channel_manager_delegate_ = gpu_channel_manager_delegate;
if (surface) {
// If a surface is provided, we are running in a webview and should not have
// a task runner.
DCHECK(!task_runner);
// GPU thread must be the same as client thread due to GLSurface not being
// thread safe. This binds the gpu sequence checker to current sequence,
// which is the client sequence. Otherwise, the gpu sequence checker will
// be bound to the gpu thread's sequence when InitializeOnGpuThread runs.
DCHECK_CALLED_ON_VALID_SEQUENCE(gpu_sequence_checker_);
surface_ = surface;
} else {
DCHECK(task_runner);
origin_task_runner_ = std::move(task_runner);
}
client_thread_weak_ptr_ = client_thread_weak_ptr_factory_.GetWeakPtr();
Capabilities capabilities;
InitializeOnGpuThreadParams params(surface_handle, attribs, &capabilities,
image_factory, gpu_dependency,
gr_shader_cache, activity_flags);
base::OnceCallback<gpu::ContextResult(void)> init_task =
base::BindOnce(&InProcessCommandBuffer::InitializeOnGpuThread,
base::Unretained(this), params);
// If a |task_sequence| is passed in, command buffer is meant to share it with
// other users, take the raw pointer in this case because the |task_sequence|
// would be kept alive by VizProcessContextProvider. If no |task_sequence| is
// passed in, create one here.
if (task_sequence) {
task_sequence_ = std::move(task_sequence);
} else {
task_scheduler_holder_ =
std::make_unique<gpu::GpuTaskSchedulerHelper>(task_executor_);
task_sequence_ = task_scheduler_holder_->GetTaskSequence();
}
// Here we block by using a WaitableEvent to make sure InitializeOnGpuThread
// is finished as part of Initialize function. This also makes sure we won't
// try to cache GLSurface before the creation is finished.
base::WaitableEvent completion(
base::WaitableEvent::ResetPolicy::MANUAL,
base::WaitableEvent::InitialState::NOT_SIGNALED);
gpu::ContextResult result = gpu::ContextResult::kSuccess;
task_sequence_->ScheduleTask(
WrapTaskWithResult(std::move(init_task), &result, &completion), {});
completion.Wait();
if (result == gpu::ContextResult::kSuccess) {
capabilities_ = capabilities;
shared_image_interface_ = std::make_unique<SharedImageInterfaceInProcess>(
task_sequence_, gpu_dependency_,
std::make_unique<SharedImageInterfaceHelper>(this));
}
return result;
}
gpu::ContextResult InProcessCommandBuffer::InitializeOnGpuThread(
const InitializeOnGpuThreadParams& params) {
DCHECK_CALLED_ON_VALID_SEQUENCE(gpu_sequence_checker_);
TRACE_EVENT0("gpu", "InProcessCommandBuffer::InitializeOnGpuThread");
UpdateActiveUrl();
if (params.gpu_dependency) {
gpu_dependency_ = params.gpu_dependency;
} else {
gpu_dependency_holder_ =
std::make_unique<DisplayCompositorMemoryAndTaskControllerOnGpu>(
task_executor_, params.image_factory);
gpu_dependency_ = gpu_dependency_holder_.get();
}
if (gpu_channel_manager_delegate_ &&
gpu_channel_manager_delegate_->IsExiting()) {
LOG(ERROR) << "ContextResult::kTransientFailure: trying to create command "
"buffer during process shutdown.";
return gpu::ContextResult::kTransientFailure;
}
GpuDriverBugWorkarounds workarounds(
task_executor_->gpu_feature_info().enabled_gpu_driver_bug_workarounds);
std::unique_ptr<MemoryTracker> memory_tracker;
// Android WebView won't have a memory tracker.
if (task_executor_->ShouldCreateMemoryTracker()) {
const uint64_t client_tracing_id =
base::trace_event::MemoryDumpManager::GetInstance()
->GetTracingProcessId();
memory_tracker = std::make_unique<GpuCommandBufferMemoryTracker>(
gpu_dependency_->command_buffer_id(), client_tracing_id,
base::ThreadTaskRunnerHandle::Get(), /* obserer=*/nullptr);
}
auto feature_info = base::MakeRefCounted<gles2::FeatureInfo>(
workarounds, task_executor_->gpu_feature_info());
context_group_ = base::MakeRefCounted<gles2::ContextGroup>(
task_executor_->gpu_preferences(),
gles2::PassthroughCommandDecoderSupported(),
task_executor_->mailbox_manager(), std::move(memory_tracker),
task_executor_->shader_translator_cache(),
task_executor_->framebuffer_completeness_cache(), feature_info,
params.attribs.bind_generates_resource, task_executor_->image_manager(),
params.image_factory, nullptr /* progress_reporter */,
task_executor_->gpu_feature_info(), task_executor_->discardable_manager(),
task_executor_->passthrough_discardable_manager(),
task_executor_->shared_image_manager());
#if defined(OS_MAC)
// Virtualize GpuPreference:::kLowPower contexts by default on OS X to prevent
// performance regressions when enabling FCM. https://crbug.com/180463
use_virtualized_gl_context_ |=
(params.attribs.gpu_preference == gl::GpuPreference::kLowPower);
#endif
use_virtualized_gl_context_ |= task_executor_->ForceVirtualizedGLContexts();
use_virtualized_gl_context_ |=
context_group_->feature_info()->workarounds().use_virtualized_gl_contexts;
if (context_group_->use_passthrough_cmd_decoder()) {
// Virtualized contexts don't work with passthrough command decoder.
// See https://crbug.com/914976
use_virtualized_gl_context_ = false;
}
// TODO(sunnyps): Should this use ScopedCrashKey instead?
crash_keys::gpu_gl_context_is_virtual.Set(use_virtualized_gl_context_ ? "1"
: "0");
command_buffer_ = std::make_unique<CommandBufferService>(
this, gpu_dependency_->memory_tracker());
context_state_ = task_executor_->GetSharedContextState();
if (!surface_) {
if (is_offscreen_) {
if (context_state_) {
surface_ = context_state_->surface();
} else {
// TODO(crbug.com/832243): GLES2CommandBufferStub has additional logic
// for offscreen surfaces that might be needed here.
surface_ = gl::init::CreateOffscreenGLSurface(gfx::Size());
if (!surface_.get()) {
DestroyOnGpuThread();
LOG(ERROR)
<< "ContextResult::kFatalFailure: Failed to create surface.";
return gpu::ContextResult::kFatalFailure;
}
}
} else {
gl::GLSurfaceFormat surface_format;
#if defined(OS_ANDROID)
// Handle Android low-bit-depth surface formats.
if (params.attribs.red_size <= 5 && params.attribs.green_size <= 6 &&
params.attribs.blue_size <= 5 && params.attribs.alpha_size == 0) {
// We hit this code path when creating the onscreen render context
// used for compositing on low-end Android devices.
surface_format.SetRGB565();
DVLOG(1) << __FUNCTION__ << ": Choosing RGB565 mode.";
}
if (!surface_format.IsCompatible(
task_executor_->share_group_surface_format())) {
use_virtualized_gl_context_ = false;
}
#endif
switch (params.attribs.color_space) {
case COLOR_SPACE_UNSPECIFIED:
surface_format.SetColorSpace(
gl::GLSurfaceFormat::COLOR_SPACE_UNSPECIFIED);
break;
case COLOR_SPACE_SRGB:
surface_format.SetColorSpace(gl::GLSurfaceFormat::COLOR_SPACE_SRGB);
break;
case COLOR_SPACE_DISPLAY_P3:
surface_format.SetColorSpace(
gl::GLSurfaceFormat::COLOR_SPACE_DISPLAY_P3);
break;
}
#if defined(USE_OZONE)
if (features::IsUsingOzonePlatform() &&
params.surface_handle != gpu::kNullSurfaceHandle) {
window_surface_ =
ui::OzonePlatform::GetInstance()
->GetSurfaceFactoryOzone()
->CreatePlatformWindowSurface(params.surface_handle);
}
#endif
surface_ = ImageTransportSurface::CreateNativeSurface(
gpu_thread_weak_ptr_factory_.GetWeakPtr(), params.surface_handle,
surface_format);
if (!surface_ || !surface_->Initialize(surface_format)) {
DestroyOnGpuThread();
LOG(ERROR)
<< "ContextResult::kSurfaceFailure: Failed to create surface.";
return gpu::ContextResult::kSurfaceFailure;
}
if (params.attribs.enable_swap_timestamps_if_supported &&
surface_->SupportsSwapTimestamps())
surface_->SetEnableSwapTimestamps();
}
}
sync_point_client_state_ =
task_executor_->sync_point_manager()->CreateSyncPointClientState(
GetNamespaceID(), GetCommandBufferID(),
task_sequence_->GetSequenceId());
if (context_group_->use_passthrough_cmd_decoder()) {
// When using the passthrough command decoder, never share with other
// contexts.
gl_share_group_ = base::MakeRefCounted<gl::GLShareGroup>();
} else {
// When using the validating command decoder, always use the global share
// group.
gl_share_group_ = task_executor_->GetShareGroup();
}
if (params.attribs.context_type == CONTEXT_TYPE_WEBGPU) {
if (!task_executor_->gpu_preferences().enable_webgpu) {
DLOG(ERROR) << "ContextResult::kFatalFailure: WebGPU not enabled";
return gpu::ContextResult::kFatalFailure;
}
std::unique_ptr<webgpu::WebGPUDecoder> webgpu_decoder(
webgpu::WebGPUDecoder::Create(
this, command_buffer_.get(), task_executor_->shared_image_manager(),
gpu_dependency_->memory_tracker(), task_executor_->outputter(),
task_executor_->gpu_preferences()));
gpu::ContextResult result = webgpu_decoder->Initialize();
if (result != gpu::ContextResult::kSuccess) {
DestroyOnGpuThread();
DLOG(ERROR) << "Failed to initialize WebGPU decoder.";
return result;
}
decoder_ = std::move(webgpu_decoder);
} else {
// TODO(khushalsagar): A lot of this initialization code is duplicated in
// GpuChannelManager. Pull it into a common util method.
scoped_refptr<gl::GLContext> real_context =
use_virtualized_gl_context_ ? gl_share_group_->shared_context()
: nullptr;
if (real_context &&
(!real_context->MakeCurrent(surface_.get()) ||
real_context->CheckStickyGraphicsResetStatus() != GL_NO_ERROR)) {
real_context = nullptr;
}
if (!real_context) {
real_context = gl::init::CreateGLContext(
gl_share_group_.get(), surface_.get(),
GenerateGLContextAttribs(params.attribs, context_group_.get()));
if (!real_context) {
// TODO(piman): This might not be fatal, we could recurse into
// CreateGLContext to get more info, tho it should be exceedingly
// rare and may not be recoverable anyway.
DestroyOnGpuThread();
LOG(ERROR) << "ContextResult::kFatalFailure: "
"Failed to create shared context for virtualization.";
return gpu::ContextResult::kFatalFailure;
}
// Ensure that context creation did not lose track of the intended share
// group.
DCHECK(real_context->share_group() == gl_share_group_.get());
task_executor_->gpu_feature_info().ApplyToGLContext(real_context.get());
if (use_virtualized_gl_context_)
gl_share_group_->SetSharedContext(real_context.get());
}
if (!real_context->MakeCurrent(surface_.get())) {
LOG(ERROR)
<< "ContextResult::kTransientFailure, failed to make context current";
DestroyOnGpuThread();
return ContextResult::kTransientFailure;
}
if (params.attribs.enable_raster_interface &&
!params.attribs.enable_gles2_interface) {
gr_shader_cache_ = params.gr_shader_cache;
if (!context_state_ ||
!context_state_->MakeCurrent(nullptr, /*needs_gl=*/true)) {
DestroyOnGpuThread();
LOG(ERROR) << "Failed to make context current.";
return ContextResult::kTransientFailure;
}
// TODO(penghuang): Merge all SharedContextState::Initialize*()
if (!context_state_->IsGLInitialized()) {
context_state_->InitializeGL(task_executor_->gpu_preferences(),
context_group_->feature_info());
}
context_ = context_state_->context();
decoder_.reset(raster::RasterDecoder::Create(
this, command_buffer_.get(), task_executor_->outputter(),
task_executor_->gpu_feature_info(), task_executor_->gpu_preferences(),
gpu_dependency_->memory_tracker(),
task_executor_->shared_image_manager(), context_state_,
true /*is_privileged*/));
} else {
decoder_.reset(gles2::GLES2Decoder::Create(this, command_buffer_.get(),
task_executor_->outputter(),
context_group_.get()));
if (use_virtualized_gl_context_) {
context_ = base::MakeRefCounted<GLContextVirtual>(
gl_share_group_.get(), real_context.get(), decoder_->AsWeakPtr());
if (!context_->Initialize(surface_.get(),
GenerateGLContextAttribs(
params.attribs, context_group_.get()))) {
// TODO(piman): This might not be fatal, we could recurse into
// CreateGLContext to get more info, tho it should be exceedingly
// rare and may not be recoverable anyway.
DestroyOnGpuThread();
LOG(ERROR) << "ContextResult::kFatalFailure: "
"Failed to initialize virtual GL context.";
return gpu::ContextResult::kFatalFailure;
}
if (!context_->MakeCurrent(surface_.get())) {
DestroyOnGpuThread();
// The caller should retry making a context, but this one won't work.
LOG(ERROR) << "ContextResult::kTransientFailure: "
"Could not make context current.";
return gpu::ContextResult::kTransientFailure;
}
} else {
context_ = real_context;
DCHECK(context_->IsCurrent(surface_.get()));
}
}
if (!context_group_->has_program_cache() &&
!context_group_->feature_info()->workarounds().disable_program_cache) {
context_group_->set_program_cache(task_executor_->program_cache());
}
}
gles2::DisallowedFeatures disallowed_features;
auto result = decoder_->Initialize(surface_, context_, is_offscreen_,
disallowed_features, params.attribs);
if (result != gpu::ContextResult::kSuccess) {
DestroyOnGpuThread();
DLOG(ERROR) << "Failed to initialize decoder.";
return result;
}
if (task_executor_->gpu_preferences().enable_gpu_service_logging)
decoder_->SetLogCommands(true);
if (context_ && use_virtualized_gl_context_) {
// If virtualized GL contexts are in use, then real GL context state
// is in an indeterminate state, since the GLStateRestorer was not
// initialized at the time the GLContextVirtual was made current. In
// the case that this command decoder is the next one to be
// processed, force a "full virtual" MakeCurrent to be performed.
context_->ForceReleaseVirtuallyCurrent();
if (!context_->MakeCurrent(surface_.get())) {
DestroyOnGpuThread();
LOG(ERROR) << "ContextResult::kTransientFailure: "
"Failed to make context current after initialization.";
return gpu::ContextResult::kTransientFailure;
}
}
*params.capabilities = decoder_->GetCapabilities();
image_factory_ = params.image_factory;
if (gpu_channel_manager_delegate_) {
gpu_channel_manager_delegate_->DidCreateContextSuccessfully();
gpu_channel_manager_delegate_->RegisterDisplayContext(this);
}
return gpu::ContextResult::kSuccess;
}
void InProcessCommandBuffer::Destroy() {
DCHECK_CALLED_ON_VALID_SEQUENCE(client_sequence_checker_);
TRACE_EVENT0("gpu", "InProcessCommandBuffer::Destroy");
client_thread_weak_ptr_factory_.InvalidateWeakPtrs();
gpu_control_client_ = nullptr;
shared_image_interface_ = nullptr;
// Here we block by using a WaitableEvent to make sure DestroyOnGpuThread is
// finished as part of Destroy.
base::WaitableEvent completion(
base::WaitableEvent::ResetPolicy::MANUAL,
base::WaitableEvent::InitialState::NOT_SIGNALED);
bool result = false;
base::OnceCallback<bool(void)> destroy_task = base::BindOnce(
&InProcessCommandBuffer::DestroyOnGpuThread, base::Unretained(this));
task_sequence_->ScheduleTask(
WrapTaskWithResult(std::move(destroy_task), &result, &completion), {});
completion.Wait();
task_sequence_ = nullptr;
}
bool InProcessCommandBuffer::DestroyOnGpuThread() {
DCHECK_CALLED_ON_VALID_SEQUENCE(gpu_sequence_checker_);
TRACE_EVENT0("gpu", "InProcessCommandBuffer::DestroyOnGpuThread");
UpdateActiveUrl();
if (gpu_channel_manager_delegate_)
gpu_channel_manager_delegate_->UnregisterDisplayContext(this);
// TODO(sunnyps): Should this use ScopedCrashKey instead?
crash_keys::gpu_gl_context_is_virtual.Set(use_virtualized_gl_context_ ? "1"
: "0");
gpu_thread_weak_ptr_factory_.InvalidateWeakPtrs();
// Clean up GL resources if possible.
bool have_context = context_.get() && context_->MakeCurrent(surface_.get());
absl::optional<gles2::ProgramCache::ScopedCacheUse> cache_use;
if (have_context)
cache_use = CreateCacheUse();
// Prepare to destroy the surface while the context is still current, because
// some surface destructors make GL calls.
if (surface_)
surface_->PrepareToDestroy(have_context);
if (decoder_) {
decoder_->Destroy(have_context);
decoder_.reset();
}
command_buffer_.reset();
surface_ = nullptr;
#if defined(USE_OZONE)
window_surface_.reset();
#endif
context_ = nullptr;
if (sync_point_client_state_) {
sync_point_client_state_->Destroy();
sync_point_client_state_ = nullptr;
}
gl_share_group_ = nullptr;
context_group_ = nullptr;
if (context_state_)
context_state_->MakeCurrent(nullptr);
context_state_ = nullptr;
if (gpu_dependency_holder_)
gpu_dependency_holder_.reset();
return true;
}
CommandBufferServiceClient::CommandBatchProcessedResult
InProcessCommandBuffer::OnCommandBatchProcessed() {
return task_sequence_->ShouldYield() ? kPauseExecution : kContinueExecution;
}
void InProcessCommandBuffer::OnParseError() {
DCHECK_CALLED_ON_VALID_SEQUENCE(gpu_sequence_checker_);
// There is a race between service side FlushOnGpuThread() calling
// UpdateLastStateOnGpuThread() and client side calling GetLastState().
// Update last_state_ now before notifying client side to save the
// error and make the race benign.
UpdateLastStateOnGpuThread();
CommandBuffer::State state = command_buffer_->GetState();
if (gpu_channel_manager_delegate_) {
// Tell the browser about this context loss so it can determine whether
// client APIs like WebGL need to be blocked from automatically running.
// |offscreen| is used to determine if it's compositing context or not.
gpu_channel_manager_delegate_->DidLoseContext(
/*offscreen=*/false, state.context_lost_reason, active_url_.url());
// Check the error reason and robustness extension to get a better idea if
// the GL context was lost. We might try restarting the GPU process to
// recover from actual GL context loss but it's unnecessary for other types
// of parse errors.
if (state.error == error::kLostContext) {
bool was_lost_by_robustness =
decoder_ && decoder_->WasContextLostByRobustnessExtension();
if (was_lost_by_robustness) {
GpuDriverBugWorkarounds workarounds(
GetGpuFeatureInfo().enabled_gpu_driver_bug_workarounds);
// Lose all other contexts.
if (gl::GLContext::LosesAllContextsOnContextLost() ||
(context_state_ && context_state_->use_virtualized_gl_contexts())) {
gpu_channel_manager_delegate_->LoseAllContexts();
}
// Work around issues with recovery by allowing a new GPU process to
// launch.
if (workarounds.exit_on_context_lost)
gpu_channel_manager_delegate_->MaybeExitOnContextLost();
}
}
}
PostOrRunClientCallback(base::BindOnce(&InProcessCommandBuffer::OnContextLost,
client_thread_weak_ptr_));
}
void InProcessCommandBuffer::MarkContextLost() {
if (!command_buffer_ ||
command_buffer_->GetState().error == error::kLostContext) {
return;
}
command_buffer_->SetContextLostReason(error::kUnknown);
if (decoder_)
decoder_->MarkContextLost(error::kUnknown);
command_buffer_->SetParseError(error::kLostContext);
}
void InProcessCommandBuffer::OnContextLost() {
DCHECK_CALLED_ON_VALID_SEQUENCE(client_sequence_checker_);
#if DCHECK_IS_ON()
// This method shouldn't be called more than once.
DCHECK(!context_lost_);
context_lost_ = true;
#endif
if (gpu_control_client_)
gpu_control_client_->OnGpuControlLostContext();
}
void InProcessCommandBuffer::RunTaskOnGpuThread(base::OnceClosure task) {
DCHECK_CALLED_ON_VALID_SEQUENCE(gpu_sequence_checker_);
UpdateActiveUrl();
crash_keys::gpu_gl_context_is_virtual.Set(use_virtualized_gl_context_ ? "1"
: "0");
std::move(task).Run();
}
void InProcessCommandBuffer::ScheduleGpuTask(
base::OnceClosure task,
std::vector<SyncToken> sync_token_fences,
SingleTaskSequence::ReportingCallback report_callback) {
base::OnceClosure gpu_task = base::BindOnce(
&InProcessCommandBuffer::RunTaskOnGpuThread,
gpu_thread_weak_ptr_factory_.GetWeakPtr(), std::move(task));
task_sequence_->ScheduleTask(std::move(gpu_task),
std::move(sync_token_fences),
std::move(report_callback));
}
void InProcessCommandBuffer::ContinueGpuTask(base::OnceClosure task) {
DCHECK_CALLED_ON_VALID_SEQUENCE(gpu_sequence_checker_);
base::OnceClosure gpu_task = base::BindOnce(
&InProcessCommandBuffer::RunTaskOnGpuThread,
gpu_thread_weak_ptr_factory_.GetWeakPtr(), std::move(task));
task_sequence_->ContinueTask(std::move(gpu_task));
}
CommandBuffer::State InProcessCommandBuffer::GetLastState() {
base::AutoLock lock(last_state_lock_);
return last_state_;
}
void InProcessCommandBuffer::UpdateLastStateOnGpuThread() {
DCHECK_CALLED_ON_VALID_SEQUENCE(gpu_sequence_checker_);
base::AutoLock lock(last_state_lock_);
command_buffer_->UpdateState();
State state = command_buffer_->GetState();
if (state.generation - last_state_.generation < 0x80000000U)
last_state_ = state;
}
bool InProcessCommandBuffer::HasUnprocessedCommandsOnGpuThread() {
DCHECK_CALLED_ON_VALID_SEQUENCE(gpu_sequence_checker_);
if (command_buffer_) {
CommandBuffer::State state = command_buffer_->GetState();
return command_buffer_->put_offset() != state.get_offset &&
!error::IsError(state.error);
}
return false;
}
void InProcessCommandBuffer::ReportTaskReady(base::TimeTicks task_ready) {
gpu_task_ready_ = task_ready;
}
void InProcessCommandBuffer::FlushOnGpuThread(
int32_t put_offset,
const std::vector<SyncToken>& sync_token_fences,
base::TimeTicks flush_timestamp) {
DCHECK_CALLED_ON_VALID_SEQUENCE(gpu_sequence_checker_);
TRACE_EVENT1("gpu", "InProcessCommandBuffer::FlushOnGpuThread", "put_offset",
put_offset);
if (!flush_timestamp.is_null()) {
viz_scheduled_draw_ = flush_timestamp;
gpu_started_draw_ = base::TimeTicks::Now();
}
ScopedEvent handle_flush(&flush_event_);
// Check if sync token waits are invalid or already complete. Do not use
// SyncPointManager::IsSyncTokenReleased() as it can't say if the wait is
// invalid.
for (const auto& sync_token : sync_token_fences)
DCHECK(!sync_point_client_state_->Wait(sync_token, base::DoNothing()));
if (!MakeCurrent())
return;
auto cache_use = CreateCacheUse();
{
absl::optional<raster::GrShaderCache::ScopedCacheUse> gr_cache_use;
if (gr_shader_cache_)
gr_cache_use.emplace(gr_shader_cache_, kDisplayCompositorClientId);
command_buffer_->Flush(put_offset, decoder_.get());
}
// Update state before signaling the flush event.
UpdateLastStateOnGpuThread();
bool has_unprocessed_commands = HasUnprocessedCommandsOnGpuThread();
if (!command_buffer_->scheduled() || has_unprocessed_commands) {
ContinueGpuTask(base::BindOnce(&InProcessCommandBuffer::FlushOnGpuThread,
gpu_thread_weak_ptr_factory_.GetWeakPtr(),
put_offset, sync_token_fences,
base::TimeTicks()));
}
// If we've processed all pending commands but still have pending queries,
// pump idle work until the query is passed.
if (!has_unprocessed_commands &&
(decoder_->HasMoreIdleWork() || decoder_->HasPendingQueries())) {
ScheduleDelayedWorkOnGpuThread();
}
}
void InProcessCommandBuffer::PerformDelayedWorkOnGpuThread() {
DCHECK_CALLED_ON_VALID_SEQUENCE(gpu_sequence_checker_);
delayed_work_pending_ = false;
// TODO(sunnyps): Should this use ScopedCrashKey instead?
crash_keys::gpu_gl_context_is_virtual.Set(use_virtualized_gl_context_ ? "1"
: "0");
if (MakeCurrent()) {
auto cache_use = CreateCacheUse();
decoder_->PerformIdleWork();
decoder_->ProcessPendingQueries(false);
if (decoder_->HasMoreIdleWork() || decoder_->HasPendingQueries()) {
ScheduleDelayedWorkOnGpuThread();
}
}
}
void InProcessCommandBuffer::ScheduleDelayedWorkOnGpuThread() {
DCHECK_CALLED_ON_VALID_SEQUENCE(gpu_sequence_checker_);
if (delayed_work_pending_)
return;
delayed_work_pending_ = true;
task_executor_->ScheduleDelayedWork(
base::BindOnce(&InProcessCommandBuffer::PerformDelayedWorkOnGpuThread,
gpu_thread_weak_ptr_factory_.GetWeakPtr()));
}
void InProcessCommandBuffer::Flush(int32_t put_offset) {
if (GetLastState().error != error::kNoError)
return;
if (last_put_offset_ == put_offset)
return;
TRACE_EVENT1("gpu", "InProcessCommandBuffer::Flush", "put_offset",
put_offset);
last_put_offset_ = put_offset;
std::vector<SyncToken> sync_token_fences;
next_flush_sync_token_fences_.swap(sync_token_fences);
base::TimeTicks flush_timestamp;
SingleTaskSequence::ReportingCallback reporting_callback;
if (should_measure_next_flush_) {
should_measure_next_flush_ = false;
flush_timestamp = base::TimeTicks::Now();
reporting_callback =
base::BindOnce(&InProcessCommandBuffer::ReportTaskReady,
gpu_thread_weak_ptr_factory_.GetWeakPtr());
}
// Don't use std::move() for |sync_token_fences| because evaluation order for
// arguments is not defined.
ScheduleGpuTask(
base::BindOnce(&InProcessCommandBuffer::FlushOnGpuThread,
gpu_thread_weak_ptr_factory_.GetWeakPtr(), put_offset,
sync_token_fences, flush_timestamp),
sync_token_fences, std::move(reporting_callback));
}
void InProcessCommandBuffer::OrderingBarrier(int32_t put_offset) {
Flush(put_offset);
}
CommandBuffer::State InProcessCommandBuffer::WaitForTokenInRange(int32_t start,
int32_t end) {
TRACE_EVENT2("gpu", "InProcessCommandBuffer::WaitForTokenInRange", "start",
start, "end", end);
State last_state = GetLastState();
while (!InRange(start, end, last_state.token) &&
last_state.error == error::kNoError) {
flush_event_.Wait();
last_state = GetLastState();
}
return last_state;
}
CommandBuffer::State InProcessCommandBuffer::WaitForGetOffsetInRange(
uint32_t set_get_buffer_count,
int32_t start,
int32_t end) {
TRACE_EVENT2("gpu", "InProcessCommandBuffer::WaitForGetOffsetInRange",
"start", start, "end", end);
State last_state = GetLastState();
while (((set_get_buffer_count != last_state.set_get_buffer_count) ||
!InRange(start, end, last_state.get_offset)) &&
last_state.error == error::kNoError) {
flush_event_.Wait();
last_state = GetLastState();
}
return last_state;
}
void InProcessCommandBuffer::SetGetBuffer(int32_t shm_id) {
if (GetLastState().error != error::kNoError)