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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
|
// Copyright (c) 2012 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 "base/bind.h"
#include "base/bind_helpers.h"
#include "base/command_line.h"
#include "base/hash.h"
#include "base/json/json_writer.h"
#include "base/memory/shared_memory.h"
#include "base/time/time.h"
#include "base/trace_event/trace_event.h"
#include "build/build_config.h"
#include "content/common/gpu/gpu_channel.h"
#include "content/common/gpu/gpu_channel_manager.h"
#include "content/common/gpu/gpu_command_buffer_stub.h"
#include "content/common/gpu/gpu_memory_manager.h"
#include "content/common/gpu/gpu_memory_tracking.h"
#include "content/common/gpu/gpu_messages.h"
#include "content/common/gpu/gpu_watchdog.h"
#include "content/common/gpu/image_transport_surface.h"
#include "content/common/gpu/media/gpu_video_decode_accelerator.h"
#include "content/common/gpu/media/gpu_video_encode_accelerator.h"
#include "content/public/common/content_client.h"
#include "content/public/common/content_switches.h"
#include "gpu/command_buffer/common/constants.h"
#include "gpu/command_buffer/common/gles2_cmd_utils.h"
#include "gpu/command_buffer/common/mailbox.h"
#include "gpu/command_buffer/service/gl_context_virtual.h"
#include "gpu/command_buffer/service/gl_state_restorer_impl.h"
#include "gpu/command_buffer/service/image_factory.h"
#include "gpu/command_buffer/service/image_manager.h"
#include "gpu/command_buffer/service/logger.h"
#include "gpu/command_buffer/service/mailbox_manager.h"
#include "gpu/command_buffer/service/memory_tracking.h"
#include "gpu/command_buffer/service/query_manager.h"
#include "gpu/command_buffer/service/sync_point_manager.h"
#include "gpu/command_buffer/service/valuebuffer_manager.h"
#include "ui/gl/gl_bindings.h"
#include "ui/gl/gl_switches.h"
#if defined(OS_WIN)
#include "base/win/win_util.h"
#include "content/public/common/sandbox_init.h"
#endif
#if defined(OS_ANDROID)
#include "content/common/gpu/stream_texture_android.h"
#endif
namespace content {
struct WaitForCommandState {
WaitForCommandState(int32 start, int32 end, IPC::Message* reply)
: start(start), end(end), reply(reply) {}
int32 start;
int32 end;
scoped_ptr<IPC::Message> reply;
};
namespace {
// The GpuCommandBufferMemoryTracker class provides a bridge between the
// ContextGroup's memory type managers and the GpuMemoryManager class.
class GpuCommandBufferMemoryTracker : public gpu::gles2::MemoryTracker {
public:
explicit GpuCommandBufferMemoryTracker(GpuChannel* channel) :
tracking_group_(channel->gpu_channel_manager()->gpu_memory_manager()->
CreateTrackingGroup(channel->renderer_pid(), this)) {
}
void TrackMemoryAllocatedChange(
size_t old_size,
size_t new_size,
gpu::gles2::MemoryTracker::Pool pool) override {
tracking_group_->TrackMemoryAllocatedChange(
old_size, new_size, pool);
}
bool EnsureGPUMemoryAvailable(size_t size_needed) override {
return tracking_group_->EnsureGPUMemoryAvailable(size_needed);
};
private:
~GpuCommandBufferMemoryTracker() override {}
scoped_ptr<GpuMemoryTrackingGroup> tracking_group_;
DISALLOW_COPY_AND_ASSIGN(GpuCommandBufferMemoryTracker);
};
// FastSetActiveURL will shortcut the expensive call to SetActiveURL when the
// url_hash matches.
void FastSetActiveURL(const GURL& url, size_t url_hash) {
// Leave the previously set URL in the empty case -- empty URLs are given by
// BlinkPlatformImpl::createOffscreenGraphicsContext3D. Hopefully the
// onscreen context URL was set previously and will show up even when a crash
// occurs during offscreen command processing.
if (url.is_empty())
return;
static size_t g_last_url_hash = 0;
if (url_hash != g_last_url_hash) {
g_last_url_hash = url_hash;
GetContentClient()->SetActiveURL(url);
}
}
// The first time polling a fence, delay some extra time to allow other
// stubs to process some work, or else the timing of the fences could
// allow a pattern of alternating fast and slow frames to occur.
const int64 kHandleMoreWorkPeriodMs = 2;
const int64 kHandleMoreWorkPeriodBusyMs = 1;
// Prevents idle work from being starved.
const int64 kMaxTimeSinceIdleMs = 10;
class DevToolsChannelData : public base::trace_event::ConvertableToTraceFormat {
public:
static scoped_refptr<base::trace_event::ConvertableToTraceFormat>
CreateForChannel(GpuChannel* channel);
void AppendAsTraceFormat(std::string* out) const override {
std::string tmp;
base::JSONWriter::Write(*value_, &tmp);
*out += tmp;
}
private:
explicit DevToolsChannelData(base::Value* value) : value_(value) {}
~DevToolsChannelData() override {}
scoped_ptr<base::Value> value_;
DISALLOW_COPY_AND_ASSIGN(DevToolsChannelData);
};
scoped_refptr<base::trace_event::ConvertableToTraceFormat>
DevToolsChannelData::CreateForChannel(GpuChannel* channel) {
scoped_ptr<base::DictionaryValue> res(new base::DictionaryValue);
res->SetInteger("renderer_pid", channel->renderer_pid());
res->SetDouble("used_bytes", channel->GetMemoryUsage());
res->SetDouble("limit_bytes",
channel->gpu_channel_manager()
->gpu_memory_manager()
->GetMaximumClientAllocation());
return new DevToolsChannelData(res.release());
}
} // namespace
GpuCommandBufferStub::GpuCommandBufferStub(
GpuChannel* channel,
GpuCommandBufferStub* share_group,
const gfx::GLSurfaceHandle& handle,
gpu::gles2::MailboxManager* mailbox_manager,
gpu::gles2::SubscriptionRefSet* subscription_ref_set,
gpu::ValueStateMap* pending_valuebuffer_state,
const gfx::Size& size,
const gpu::gles2::DisallowedFeatures& disallowed_features,
const std::vector<int32>& attribs,
gfx::GpuPreference gpu_preference,
bool use_virtualized_gl_context,
int32 route_id,
int32 surface_id,
GpuWatchdog* watchdog,
bool software,
const GURL& active_url)
: channel_(channel),
handle_(handle),
initial_size_(size),
disallowed_features_(disallowed_features),
requested_attribs_(attribs),
gpu_preference_(gpu_preference),
use_virtualized_gl_context_(use_virtualized_gl_context),
route_id_(route_id),
surface_id_(surface_id),
software_(software),
last_flush_count_(0),
last_memory_allocation_valid_(false),
watchdog_(watchdog),
sync_point_wait_count_(0),
delayed_work_scheduled_(false),
previous_messages_processed_(0),
active_url_(active_url),
total_gpu_memory_(0) {
active_url_hash_ = base::Hash(active_url.possibly_invalid_spec());
FastSetActiveURL(active_url_, active_url_hash_);
gpu::gles2::ContextCreationAttribHelper attrib_parser;
attrib_parser.Parse(requested_attribs_);
if (share_group) {
context_group_ = share_group->context_group_;
DCHECK(context_group_->bind_generates_resource() ==
attrib_parser.bind_generates_resource);
} else {
context_group_ = new gpu::gles2::ContextGroup(
mailbox_manager,
new GpuCommandBufferMemoryTracker(channel),
channel_->gpu_channel_manager()->shader_translator_cache(),
NULL,
subscription_ref_set,
pending_valuebuffer_state,
attrib_parser.bind_generates_resource);
}
use_virtualized_gl_context_ |=
context_group_->feature_info()->workarounds().use_virtualized_gl_contexts;
bool is_offscreen = surface_id_ == 0;
if (is_offscreen && initial_size_.IsEmpty()) {
// If we're an offscreen surface with zero width and/or height, set to a
// non-zero size so that we have a complete framebuffer for operations like
// glClear.
initial_size_ = gfx::Size(1, 1);
}
}
GpuCommandBufferStub::~GpuCommandBufferStub() {
Destroy();
GpuChannelManager* gpu_channel_manager = channel_->gpu_channel_manager();
gpu_channel_manager->Send(new GpuHostMsg_DestroyCommandBuffer(surface_id()));
}
GpuMemoryManager* GpuCommandBufferStub::GetMemoryManager() const {
return channel()->gpu_channel_manager()->gpu_memory_manager();
}
bool GpuCommandBufferStub::OnMessageReceived(const IPC::Message& message) {
TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"),
"GPUTask",
"data",
DevToolsChannelData::CreateForChannel(channel()));
FastSetActiveURL(active_url_, active_url_hash_);
bool have_context = false;
// Ensure the appropriate GL context is current before handling any IPC
// messages directed at the command buffer. This ensures that the message
// handler can assume that the context is current (not necessary for
// RetireSyncPoint or WaitSyncPoint).
if (decoder_.get() &&
message.type() != GpuCommandBufferMsg_SetGetBuffer::ID &&
message.type() != GpuCommandBufferMsg_WaitForTokenInRange::ID &&
message.type() != GpuCommandBufferMsg_WaitForGetOffsetInRange::ID &&
message.type() != GpuCommandBufferMsg_RegisterTransferBuffer::ID &&
message.type() != GpuCommandBufferMsg_DestroyTransferBuffer::ID &&
message.type() != GpuCommandBufferMsg_RetireSyncPoint::ID &&
message.type() != GpuCommandBufferMsg_SignalSyncPoint::ID &&
message.type() !=
GpuCommandBufferMsg_SetClientHasMemoryAllocationChangedCallback::ID) {
if (!MakeCurrent())
return false;
have_context = true;
}
// Always use IPC_MESSAGE_HANDLER_DELAY_REPLY for synchronous message handlers
// here. This is so the reply can be delayed if the scheduler is unscheduled.
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(GpuCommandBufferStub, message)
IPC_MESSAGE_HANDLER_DELAY_REPLY(GpuCommandBufferMsg_Initialize,
OnInitialize);
IPC_MESSAGE_HANDLER_DELAY_REPLY(GpuCommandBufferMsg_SetGetBuffer,
OnSetGetBuffer);
IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_ProduceFrontBuffer,
OnProduceFrontBuffer);
IPC_MESSAGE_HANDLER_DELAY_REPLY(GpuCommandBufferMsg_WaitForTokenInRange,
OnWaitForTokenInRange);
IPC_MESSAGE_HANDLER_DELAY_REPLY(GpuCommandBufferMsg_WaitForGetOffsetInRange,
OnWaitForGetOffsetInRange);
IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_AsyncFlush, OnAsyncFlush);
IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_Rescheduled, OnRescheduled);
IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_RegisterTransferBuffer,
OnRegisterTransferBuffer);
IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_DestroyTransferBuffer,
OnDestroyTransferBuffer);
IPC_MESSAGE_HANDLER_DELAY_REPLY(GpuCommandBufferMsg_CreateVideoDecoder,
OnCreateVideoDecoder)
IPC_MESSAGE_HANDLER_DELAY_REPLY(GpuCommandBufferMsg_CreateVideoEncoder,
OnCreateVideoEncoder)
IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_SetSurfaceVisible,
OnSetSurfaceVisible)
IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_RetireSyncPoint,
OnRetireSyncPoint)
IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_SignalSyncPoint,
OnSignalSyncPoint)
IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_SignalQuery,
OnSignalQuery)
IPC_MESSAGE_HANDLER(
GpuCommandBufferMsg_SetClientHasMemoryAllocationChangedCallback,
OnSetClientHasMemoryAllocationChangedCallback)
IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_CreateImage, OnCreateImage);
IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_DestroyImage, OnDestroyImage);
IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_CreateStreamTexture,
OnCreateStreamTexture)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
CheckCompleteWaits();
if (have_context) {
// Ensure that any delayed work that was created will be handled.
ScheduleDelayedWork(kHandleMoreWorkPeriodMs);
}
DCHECK(handled);
return handled;
}
bool GpuCommandBufferStub::Send(IPC::Message* message) {
return channel_->Send(message);
}
bool GpuCommandBufferStub::IsScheduled() {
return (!scheduler_.get() || scheduler_->IsScheduled());
}
bool GpuCommandBufferStub::HasMoreWork() {
return scheduler_.get() && scheduler_->HasMoreWork();
}
void GpuCommandBufferStub::PollWork() {
TRACE_EVENT0("gpu", "GpuCommandBufferStub::PollWork");
delayed_work_scheduled_ = false;
FastSetActiveURL(active_url_, active_url_hash_);
if (decoder_.get() && !MakeCurrent())
return;
if (scheduler_) {
uint64 current_messages_processed =
channel()->gpu_channel_manager()->MessagesProcessed();
// We're idle when no messages were processed or scheduled.
bool is_idle =
(previous_messages_processed_ == current_messages_processed) &&
!channel()->gpu_channel_manager()->HandleMessagesScheduled();
if (!is_idle && !last_idle_time_.is_null()) {
base::TimeDelta time_since_idle =
base::TimeTicks::Now() - last_idle_time_;
base::TimeDelta max_time_since_idle =
base::TimeDelta::FromMilliseconds(kMaxTimeSinceIdleMs);
// Force idle when it's been too long since last time we were idle.
if (time_since_idle > max_time_since_idle)
is_idle = true;
}
if (is_idle) {
last_idle_time_ = base::TimeTicks::Now();
scheduler_->PerformIdleWork();
}
}
ScheduleDelayedWork(kHandleMoreWorkPeriodBusyMs);
}
bool GpuCommandBufferStub::HasUnprocessedCommands() {
if (command_buffer_) {
gpu::CommandBuffer::State state = command_buffer_->GetLastState();
return command_buffer_->GetPutOffset() != state.get_offset &&
!gpu::error::IsError(state.error);
}
return false;
}
void GpuCommandBufferStub::ScheduleDelayedWork(int64 delay) {
if (!HasMoreWork()) {
last_idle_time_ = base::TimeTicks();
return;
}
if (delayed_work_scheduled_)
return;
delayed_work_scheduled_ = true;
// Idle when no messages are processed between now and when
// PollWork is called.
previous_messages_processed_ =
channel()->gpu_channel_manager()->MessagesProcessed();
if (last_idle_time_.is_null())
last_idle_time_ = base::TimeTicks::Now();
// IsScheduled() returns true after passing all unschedule fences
// and this is when we can start performing idle work. Idle work
// is done synchronously so we can set delay to 0 and instead poll
// for more work at the rate idle work is performed. This also ensures
// that idle work is done as efficiently as possible without any
// unnecessary delays.
if (scheduler_.get() &&
scheduler_->IsScheduled() &&
scheduler_->HasMoreIdleWork()) {
delay = 0;
}
base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
FROM_HERE, base::Bind(&GpuCommandBufferStub::PollWork, AsWeakPtr()),
base::TimeDelta::FromMilliseconds(delay));
}
bool GpuCommandBufferStub::MakeCurrent() {
if (decoder_->MakeCurrent())
return true;
DLOG(ERROR) << "Context lost because MakeCurrent failed.";
command_buffer_->SetContextLostReason(decoder_->GetContextLostReason());
command_buffer_->SetParseError(gpu::error::kLostContext);
CheckContextLost();
return false;
}
void GpuCommandBufferStub::Destroy() {
if (wait_for_token_) {
Send(wait_for_token_->reply.release());
wait_for_token_.reset();
}
if (wait_for_get_offset_) {
Send(wait_for_get_offset_->reply.release());
wait_for_get_offset_.reset();
}
if (handle_.is_null() && !active_url_.is_empty()) {
GpuChannelManager* gpu_channel_manager = channel_->gpu_channel_manager();
gpu_channel_manager->Send(new GpuHostMsg_DidDestroyOffscreenContext(
active_url_));
}
memory_manager_client_state_.reset();
while (!sync_points_.empty())
OnRetireSyncPoint(sync_points_.front());
if (decoder_)
decoder_->set_engine(NULL);
// The scheduler has raw references to the decoder and the command buffer so
// destroy it before those.
scheduler_.reset();
bool have_context = false;
if (decoder_ && decoder_->GetGLContext()) {
// Try to make the context current regardless of whether it was lost, so we
// don't leak resources.
have_context = decoder_->GetGLContext()->MakeCurrent(surface_.get());
}
FOR_EACH_OBSERVER(DestructionObserver,
destruction_observers_,
OnWillDestroyStub());
if (decoder_) {
decoder_->Destroy(have_context);
decoder_.reset();
}
command_buffer_.reset();
// Remove this after crbug.com/248395 is sorted out.
surface_ = NULL;
}
void GpuCommandBufferStub::OnInitializeFailed(IPC::Message* reply_message) {
Destroy();
GpuCommandBufferMsg_Initialize::WriteReplyParams(
reply_message, false, gpu::Capabilities());
Send(reply_message);
}
void GpuCommandBufferStub::OnInitialize(
base::SharedMemoryHandle shared_state_handle,
IPC::Message* reply_message) {
TRACE_EVENT0("gpu", "GpuCommandBufferStub::OnInitialize");
DCHECK(!command_buffer_.get());
scoped_ptr<base::SharedMemory> shared_state_shm(
new base::SharedMemory(shared_state_handle, false));
command_buffer_.reset(new gpu::CommandBufferService(
context_group_->transfer_buffer_manager()));
bool result = command_buffer_->Initialize();
DCHECK(result);
decoder_.reset(::gpu::gles2::GLES2Decoder::Create(context_group_.get()));
scheduler_.reset(new gpu::GpuScheduler(command_buffer_.get(),
decoder_.get(),
decoder_.get()));
if (preemption_flag_.get())
scheduler_->SetPreemptByFlag(preemption_flag_);
decoder_->set_engine(scheduler_.get());
if (!handle_.is_null()) {
#if defined(OS_MACOSX) || defined(UI_COMPOSITOR_IMAGE_TRANSPORT)
if (software_) {
LOG(ERROR) << "No software support.";
OnInitializeFailed(reply_message);
return;
}
#endif
surface_ = ImageTransportSurface::CreateSurface(
channel_->gpu_channel_manager(),
this,
handle_);
} else {
GpuChannelManager* manager = channel_->gpu_channel_manager();
surface_ = manager->GetDefaultOffscreenSurface();
}
if (!surface_.get()) {
DLOG(ERROR) << "Failed to create surface.";
OnInitializeFailed(reply_message);
return;
}
scoped_refptr<gfx::GLContext> context;
if (use_virtualized_gl_context_ && channel_->share_group()) {
context = channel_->share_group()->GetSharedContext();
if (!context.get()) {
context = gfx::GLContext::CreateGLContext(
channel_->share_group(),
channel_->gpu_channel_manager()->GetDefaultOffscreenSurface(),
gpu_preference_);
if (!context.get()) {
DLOG(ERROR) << "Failed to create shared context for virtualization.";
OnInitializeFailed(reply_message);
return;
}
channel_->share_group()->SetSharedContext(context.get());
}
// This should be a non-virtual GL context.
DCHECK(context->GetHandle());
context = new gpu::GLContextVirtual(
channel_->share_group(), context.get(), decoder_->AsWeakPtr());
if (!context->Initialize(surface_.get(), gpu_preference_)) {
// TODO(sievers): The real context created above for the default
// offscreen surface might not be compatible with this surface.
// Need to adjust at least GLX to be able to create the initial context
// with a config that is compatible with onscreen and offscreen surfaces.
context = NULL;
DLOG(ERROR) << "Failed to initialize virtual GL context.";
OnInitializeFailed(reply_message);
return;
}
}
if (!context.get()) {
context = gfx::GLContext::CreateGLContext(
channel_->share_group(), surface_.get(), gpu_preference_);
}
if (!context.get()) {
DLOG(ERROR) << "Failed to create context.";
OnInitializeFailed(reply_message);
return;
}
if (!context->MakeCurrent(surface_.get())) {
LOG(ERROR) << "Failed to make context current.";
OnInitializeFailed(reply_message);
return;
}
if (!context->GetGLStateRestorer()) {
context->SetGLStateRestorer(
new gpu::GLStateRestorerImpl(decoder_->AsWeakPtr()));
}
if (!context->GetTotalGpuMemory(&total_gpu_memory_))
total_gpu_memory_ = 0;
if (!context_group_->has_program_cache() &&
!context_group_->feature_info()->workarounds().disable_program_cache) {
context_group_->set_program_cache(
channel_->gpu_channel_manager()->program_cache());
}
// Initialize the decoder with either the view or pbuffer GLContext.
if (!decoder_->Initialize(surface_,
context,
!surface_id(),
initial_size_,
disallowed_features_,
requested_attribs_)) {
DLOG(ERROR) << "Failed to initialize decoder.";
OnInitializeFailed(reply_message);
return;
}
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kEnableGPUServiceLogging)) {
decoder_->set_log_commands(true);
}
decoder_->GetLogger()->SetMsgCallback(
base::Bind(&GpuCommandBufferStub::SendConsoleMessage,
base::Unretained(this)));
decoder_->SetShaderCacheCallback(
base::Bind(&GpuCommandBufferStub::SendCachedShader,
base::Unretained(this)));
decoder_->SetWaitSyncPointCallback(
base::Bind(&GpuCommandBufferStub::OnWaitSyncPoint,
base::Unretained(this)));
command_buffer_->SetPutOffsetChangeCallback(
base::Bind(&GpuCommandBufferStub::PutChanged, base::Unretained(this)));
command_buffer_->SetGetBufferChangeCallback(
base::Bind(&gpu::GpuScheduler::SetGetBuffer,
base::Unretained(scheduler_.get())));
command_buffer_->SetParseErrorCallback(
base::Bind(&GpuCommandBufferStub::OnParseError, base::Unretained(this)));
scheduler_->SetSchedulingChangedCallback(
base::Bind(&GpuChannel::StubSchedulingChanged,
base::Unretained(channel_)));
if (watchdog_) {
scheduler_->SetCommandProcessedCallback(
base::Bind(&GpuCommandBufferStub::OnCommandProcessed,
base::Unretained(this)));
}
const size_t kSharedStateSize = sizeof(gpu::CommandBufferSharedState);
if (!shared_state_shm->Map(kSharedStateSize)) {
DLOG(ERROR) << "Failed to map shared state buffer.";
OnInitializeFailed(reply_message);
return;
}
command_buffer_->SetSharedStateBuffer(gpu::MakeBackingFromSharedMemory(
shared_state_shm.Pass(), kSharedStateSize));
gpu::Capabilities capabilities = decoder_->GetCapabilities();
capabilities.future_sync_points = channel_->allow_future_sync_points();
GpuCommandBufferMsg_Initialize::WriteReplyParams(
reply_message, true, capabilities);
Send(reply_message);
if (handle_.is_null() && !active_url_.is_empty()) {
GpuChannelManager* gpu_channel_manager = channel_->gpu_channel_manager();
gpu_channel_manager->Send(new GpuHostMsg_DidCreateOffscreenContext(
active_url_));
}
}
void GpuCommandBufferStub::OnCreateStreamTexture(
uint32 texture_id, int32 stream_id, bool* succeeded) {
#if defined(OS_ANDROID)
*succeeded = StreamTexture::Create(this, texture_id, stream_id);
#else
*succeeded = false;
#endif
}
void GpuCommandBufferStub::SetLatencyInfoCallback(
const LatencyInfoCallback& callback) {
latency_info_callback_ = callback;
}
int32 GpuCommandBufferStub::GetRequestedAttribute(int attr) const {
// The command buffer is pairs of enum, value
// search for the requested attribute, return the value.
for (std::vector<int32>::const_iterator it = requested_attribs_.begin();
it != requested_attribs_.end(); ++it) {
if (*it++ == attr) {
return *it;
}
}
return -1;
}
void GpuCommandBufferStub::OnSetGetBuffer(int32 shm_id,
IPC::Message* reply_message) {
TRACE_EVENT0("gpu", "GpuCommandBufferStub::OnSetGetBuffer");
if (command_buffer_)
command_buffer_->SetGetBuffer(shm_id);
Send(reply_message);
}
void GpuCommandBufferStub::OnProduceFrontBuffer(const gpu::Mailbox& mailbox) {
TRACE_EVENT0("gpu", "GpuCommandBufferStub::OnProduceFrontBuffer");
if (!decoder_) {
LOG(ERROR) << "Can't produce front buffer before initialization.";
return;
}
decoder_->ProduceFrontBuffer(mailbox);
}
void GpuCommandBufferStub::OnParseError() {
TRACE_EVENT0("gpu", "GpuCommandBufferStub::OnParseError");
DCHECK(command_buffer_.get());
gpu::CommandBuffer::State state = command_buffer_->GetLastState();
IPC::Message* msg = new GpuCommandBufferMsg_Destroyed(
route_id_, state.context_lost_reason, state.error);
msg->set_unblock(true);
Send(msg);
// Tell the browser about this context loss as well, so it can
// determine whether client APIs like WebGL need to be immediately
// blocked from automatically running.
GpuChannelManager* gpu_channel_manager = channel_->gpu_channel_manager();
gpu_channel_manager->Send(new GpuHostMsg_DidLoseContext(
handle_.is_null(), state.context_lost_reason, active_url_));
CheckContextLost();
}
void GpuCommandBufferStub::OnWaitForTokenInRange(int32 start,
int32 end,
IPC::Message* reply_message) {
TRACE_EVENT0("gpu", "GpuCommandBufferStub::OnWaitForTokenInRange");
DCHECK(command_buffer_.get());
CheckContextLost();
if (wait_for_token_)
LOG(ERROR) << "Got WaitForToken command while currently waiting for token.";
wait_for_token_ =
make_scoped_ptr(new WaitForCommandState(start, end, reply_message));
CheckCompleteWaits();
}
void GpuCommandBufferStub::OnWaitForGetOffsetInRange(
int32 start,
int32 end,
IPC::Message* reply_message) {
TRACE_EVENT0("gpu", "GpuCommandBufferStub::OnWaitForGetOffsetInRange");
DCHECK(command_buffer_.get());
CheckContextLost();
if (wait_for_get_offset_) {
LOG(ERROR)
<< "Got WaitForGetOffset command while currently waiting for offset.";
}
wait_for_get_offset_ =
make_scoped_ptr(new WaitForCommandState(start, end, reply_message));
CheckCompleteWaits();
}
void GpuCommandBufferStub::CheckCompleteWaits() {
if (wait_for_token_ || wait_for_get_offset_) {
gpu::CommandBuffer::State state = command_buffer_->GetLastState();
if (wait_for_token_ &&
(gpu::CommandBuffer::InRange(
wait_for_token_->start, wait_for_token_->end, state.token) ||
state.error != gpu::error::kNoError)) {
ReportState();
GpuCommandBufferMsg_WaitForTokenInRange::WriteReplyParams(
wait_for_token_->reply.get(), state);
Send(wait_for_token_->reply.release());
wait_for_token_.reset();
}
if (wait_for_get_offset_ &&
(gpu::CommandBuffer::InRange(wait_for_get_offset_->start,
wait_for_get_offset_->end,
state.get_offset) ||
state.error != gpu::error::kNoError)) {
ReportState();
GpuCommandBufferMsg_WaitForGetOffsetInRange::WriteReplyParams(
wait_for_get_offset_->reply.get(), state);
Send(wait_for_get_offset_->reply.release());
wait_for_get_offset_.reset();
}
}
}
void GpuCommandBufferStub::OnAsyncFlush(
int32 put_offset,
uint32 flush_count,
const std::vector<ui::LatencyInfo>& latency_info) {
TRACE_EVENT1(
"gpu", "GpuCommandBufferStub::OnAsyncFlush", "put_offset", put_offset);
if (ui::LatencyInfo::Verify(latency_info,
"GpuCommandBufferStub::OnAsyncFlush") &&
!latency_info_callback_.is_null()) {
latency_info_callback_.Run(latency_info);
}
DCHECK(command_buffer_.get());
if (flush_count - last_flush_count_ < 0x8000000U) {
last_flush_count_ = flush_count;
command_buffer_->Flush(put_offset);
} else {
// We received this message out-of-order. This should not happen but is here
// to catch regressions. Ignore the message.
NOTREACHED() << "Received a Flush message out-of-order";
}
ReportState();
}
void GpuCommandBufferStub::OnRescheduled() {
gpu::CommandBuffer::State pre_state = command_buffer_->GetLastState();
command_buffer_->Flush(command_buffer_->GetPutOffset());
gpu::CommandBuffer::State post_state = command_buffer_->GetLastState();
if (pre_state.get_offset != post_state.get_offset)
ReportState();
}
void GpuCommandBufferStub::OnRegisterTransferBuffer(
int32 id,
base::SharedMemoryHandle transfer_buffer,
uint32 size) {
TRACE_EVENT0("gpu", "GpuCommandBufferStub::OnRegisterTransferBuffer");
// Take ownership of the memory and map it into this process.
// This validates the size.
scoped_ptr<base::SharedMemory> shared_memory(
new base::SharedMemory(transfer_buffer, false));
if (!shared_memory->Map(size)) {
DVLOG(0) << "Failed to map shared memory.";
return;
}
if (command_buffer_) {
command_buffer_->RegisterTransferBuffer(
id, gpu::MakeBackingFromSharedMemory(shared_memory.Pass(), size));
}
}
void GpuCommandBufferStub::OnDestroyTransferBuffer(int32 id) {
TRACE_EVENT0("gpu", "GpuCommandBufferStub::OnDestroyTransferBuffer");
if (command_buffer_)
command_buffer_->DestroyTransferBuffer(id);
}
void GpuCommandBufferStub::OnCommandProcessed() {
if (watchdog_)
watchdog_->CheckArmed();
}
void GpuCommandBufferStub::ReportState() { command_buffer_->UpdateState(); }
void GpuCommandBufferStub::PutChanged() {
FastSetActiveURL(active_url_, active_url_hash_);
scheduler_->PutChanged();
}
void GpuCommandBufferStub::OnCreateVideoDecoder(
media::VideoCodecProfile profile,
int32 decoder_route_id,
IPC::Message* reply_message) {
TRACE_EVENT0("gpu", "GpuCommandBufferStub::OnCreateVideoDecoder");
GpuVideoDecodeAccelerator* decoder = new GpuVideoDecodeAccelerator(
decoder_route_id, this, channel_->io_task_runner());
decoder->Initialize(profile, reply_message);
// decoder is registered as a DestructionObserver of this stub and will
// self-delete during destruction of this stub.
}
void GpuCommandBufferStub::OnCreateVideoEncoder(
media::VideoFrame::Format input_format,
const gfx::Size& input_visible_size,
media::VideoCodecProfile output_profile,
uint32 initial_bitrate,
int32 encoder_route_id,
IPC::Message* reply_message) {
TRACE_EVENT0("gpu", "GpuCommandBufferStub::OnCreateVideoEncoder");
GpuVideoEncodeAccelerator* encoder =
new GpuVideoEncodeAccelerator(encoder_route_id, this);
encoder->Initialize(input_format,
input_visible_size,
output_profile,
initial_bitrate,
reply_message);
// encoder is registered as a DestructionObserver of this stub and will
// self-delete during destruction of this stub.
}
void GpuCommandBufferStub::OnSetSurfaceVisible(bool visible) {
TRACE_EVENT0("gpu", "GpuCommandBufferStub::OnSetSurfaceVisible");
if (memory_manager_client_state_)
memory_manager_client_state_->SetVisible(visible);
}
void GpuCommandBufferStub::AddSyncPoint(uint32 sync_point) {
sync_points_.push_back(sync_point);
}
void GpuCommandBufferStub::OnRetireSyncPoint(uint32 sync_point) {
DCHECK(!sync_points_.empty() && sync_points_.front() == sync_point);
sync_points_.pop_front();
GpuChannelManager* manager = channel_->gpu_channel_manager();
manager->sync_point_manager()->RetireSyncPoint(sync_point);
}
bool GpuCommandBufferStub::OnWaitSyncPoint(uint32 sync_point) {
if (!sync_point)
return true;
GpuChannelManager* manager = channel_->gpu_channel_manager();
if (manager->sync_point_manager()->IsSyncPointRetired(sync_point))
return true;
if (sync_point_wait_count_ == 0) {
TRACE_EVENT_ASYNC_BEGIN1("gpu", "WaitSyncPoint", this,
"GpuCommandBufferStub", this);
}
scheduler_->SetScheduled(false);
++sync_point_wait_count_;
manager->sync_point_manager()->AddSyncPointCallback(
sync_point,
base::Bind(&GpuCommandBufferStub::OnSyncPointRetired,
this->AsWeakPtr()));
return scheduler_->IsScheduled();
}
void GpuCommandBufferStub::OnSyncPointRetired() {
--sync_point_wait_count_;
if (sync_point_wait_count_ == 0) {
TRACE_EVENT_ASYNC_END1("gpu", "WaitSyncPoint", this,
"GpuCommandBufferStub", this);
}
scheduler_->SetScheduled(true);
}
void GpuCommandBufferStub::OnSignalSyncPoint(uint32 sync_point, uint32 id) {
GpuChannelManager* manager = channel_->gpu_channel_manager();
manager->sync_point_manager()->AddSyncPointCallback(
sync_point,
base::Bind(&GpuCommandBufferStub::OnSignalSyncPointAck,
this->AsWeakPtr(),
id));
}
void GpuCommandBufferStub::OnSignalSyncPointAck(uint32 id) {
Send(new GpuCommandBufferMsg_SignalSyncPointAck(route_id_, id));
}
void GpuCommandBufferStub::OnSignalQuery(uint32 query_id, uint32 id) {
if (decoder_) {
gpu::gles2::QueryManager* query_manager = decoder_->GetQueryManager();
if (query_manager) {
gpu::gles2::QueryManager::Query* query =
query_manager->GetQuery(query_id);
if (query) {
query->AddCallback(
base::Bind(&GpuCommandBufferStub::OnSignalSyncPointAck,
this->AsWeakPtr(),
id));
return;
}
}
}
// Something went wrong, run callback immediately.
OnSignalSyncPointAck(id);
}
void GpuCommandBufferStub::OnSetClientHasMemoryAllocationChangedCallback(
bool has_callback) {
TRACE_EVENT0(
"gpu",
"GpuCommandBufferStub::OnSetClientHasMemoryAllocationChangedCallback");
if (has_callback) {
if (!memory_manager_client_state_) {
memory_manager_client_state_.reset(GetMemoryManager()->CreateClientState(
this, surface_id_ != 0, true));
}
} else {
memory_manager_client_state_.reset();
}
}
void GpuCommandBufferStub::OnCreateImage(int32 id,
gfx::GpuMemoryBufferHandle handle,
gfx::Size size,
gfx::GpuMemoryBuffer::Format format,
uint32 internalformat) {
TRACE_EVENT0("gpu", "GpuCommandBufferStub::OnCreateImage");
if (!decoder_)
return;
gpu::gles2::ImageManager* image_manager = decoder_->GetImageManager();
DCHECK(image_manager);
if (image_manager->LookupImage(id)) {
LOG(ERROR) << "Image already exists with same ID.";
return;
}
if (!gpu::ImageFactory::IsGpuMemoryBufferFormatSupported(
format, decoder_->GetCapabilities())) {
LOG(ERROR) << "Format is not supported.";
return;
}
if (!gpu::ImageFactory::IsImageSizeValidForGpuMemoryBufferFormat(size,
format)) {
LOG(ERROR) << "Invalid image size for format.";
return;
}
if (!gpu::ImageFactory::IsImageFormatCompatibleWithGpuMemoryBufferFormat(
internalformat, format)) {
LOG(ERROR) << "Incompatible image format.";
return;
}
scoped_refptr<gfx::GLImage> image = channel()->CreateImageForGpuMemoryBuffer(
handle, size, format, internalformat);
if (!image.get())
return;
image_manager->AddImage(image.get(), id);
}
void GpuCommandBufferStub::OnDestroyImage(int32 id) {
TRACE_EVENT0("gpu", "GpuCommandBufferStub::OnDestroyImage");
if (!decoder_)
return;
gpu::gles2::ImageManager* image_manager = decoder_->GetImageManager();
DCHECK(image_manager);
if (!image_manager->LookupImage(id)) {
LOG(ERROR) << "Image with ID doesn't exist.";
return;
}
image_manager->RemoveImage(id);
}
void GpuCommandBufferStub::SendConsoleMessage(
int32 id,
const std::string& message) {
GPUCommandBufferConsoleMessage console_message;
console_message.id = id;
console_message.message = message;
IPC::Message* msg = new GpuCommandBufferMsg_ConsoleMsg(
route_id_, console_message);
msg->set_unblock(true);
Send(msg);
}
void GpuCommandBufferStub::SendCachedShader(
const std::string& key, const std::string& shader) {
channel_->CacheShader(key, shader);
}
void GpuCommandBufferStub::AddDestructionObserver(
DestructionObserver* observer) {
destruction_observers_.AddObserver(observer);
}
void GpuCommandBufferStub::RemoveDestructionObserver(
DestructionObserver* observer) {
destruction_observers_.RemoveObserver(observer);
}
void GpuCommandBufferStub::SetPreemptByFlag(
scoped_refptr<gpu::PreemptionFlag> flag) {
preemption_flag_ = flag;
if (scheduler_)
scheduler_->SetPreemptByFlag(preemption_flag_);
}
bool GpuCommandBufferStub::GetTotalGpuMemory(uint64* bytes) {
*bytes = total_gpu_memory_;
return !!total_gpu_memory_;
}
gfx::Size GpuCommandBufferStub::GetSurfaceSize() const {
if (!surface_.get())
return gfx::Size();
return surface_->GetSize();
}
const gpu::gles2::FeatureInfo* GpuCommandBufferStub::GetFeatureInfo() const {
return context_group_->feature_info();
}
gpu::gles2::MemoryTracker* GpuCommandBufferStub::GetMemoryTracker() const {
return context_group_->memory_tracker();
}
void GpuCommandBufferStub::SetMemoryAllocation(
const gpu::MemoryAllocation& allocation) {
if (!last_memory_allocation_valid_ ||
!allocation.Equals(last_memory_allocation_)) {
Send(new GpuCommandBufferMsg_SetMemoryAllocation(
route_id_, allocation));
}
last_memory_allocation_valid_ = true;
last_memory_allocation_ = allocation;
}
void GpuCommandBufferStub::SuggestHaveFrontBuffer(
bool suggest_have_frontbuffer) {
// This can be called outside of OnMessageReceived, so the context needs
// to be made current before calling methods on the surface.
if (surface_.get() && MakeCurrent())
surface_->SetFrontbufferAllocation(suggest_have_frontbuffer);
}
bool GpuCommandBufferStub::CheckContextLost() {
DCHECK(command_buffer_);
gpu::CommandBuffer::State state = command_buffer_->GetLastState();
bool was_lost = state.error == gpu::error::kLostContext;
if (was_lost) {
bool was_lost_by_robustness =
decoder_ && decoder_->WasContextLostByRobustnessExtension();
// Work around issues with recovery by allowing a new GPU process to launch.
if ((was_lost_by_robustness ||
context_group_->feature_info()->workarounds().exit_on_context_lost) &&
!base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kSingleProcess) &&
!base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kInProcessGPU)) {
LOG(ERROR) << "Exiting GPU process because some drivers cannot recover"
<< " from problems.";
#if defined(OS_WIN)
base::win::SetShouldCrashOnProcessDetach(false);
#endif
exit(0);
}
// Lose all other contexts if the reset was triggered by the robustness
// extension instead of being synthetic.
if (was_lost_by_robustness &&
(gfx::GLContext::LosesAllContextsOnContextLost() ||
use_virtualized_gl_context_)) {
channel_->LoseAllContexts();
}
}
CheckCompleteWaits();
return was_lost;
}
void GpuCommandBufferStub::MarkContextLost() {
if (!command_buffer_ ||
command_buffer_->GetLastState().error == gpu::error::kLostContext)
return;
command_buffer_->SetContextLostReason(gpu::error::kUnknown);
if (decoder_)
decoder_->MarkContextLost(gpu::error::kUnknown);
command_buffer_->SetParseError(gpu::error::kLostContext);
}
uint64 GpuCommandBufferStub::GetMemoryUsage() const {
return GetMemoryManager()->GetClientMemoryUsage(this);
}
void GpuCommandBufferStub::SendSwapBuffersCompleted(
const std::vector<ui::LatencyInfo>& latency_info,
gfx::SwapResult result) {
Send(new GpuCommandBufferMsg_SwapBuffersCompleted(route_id_, latency_info,
result));
}
void GpuCommandBufferStub::SendUpdateVSyncParameters(base::TimeTicks timebase,
base::TimeDelta interval) {
Send(new GpuCommandBufferMsg_UpdateVSyncParameters(route_id_, timebase,
interval));
}
} // namespace content
|