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
|
// 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.
#ifndef GPU_IPC_SERVICE_GPU_CHANNEL_MANAGER_H_
#define GPU_IPC_SERVICE_GPU_CHANNEL_MANAGER_H_
#include <stdint.h>
#include <memory>
#include <string>
#include <unordered_map>
#include <vector>
#include "base/macros.h"
#include "base/memory/memory_pressure_listener.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/single_thread_task_runner.h"
#include "build/build_config.h"
#include "gpu/command_buffer/common/activity_flags.h"
#include "gpu/command_buffer/common/constants.h"
#include "gpu/command_buffer/service/gpu_preferences.h"
#include "gpu/command_buffer/service/service_discardable_manager.h"
#include "gpu/command_buffer/service/shader_translator_cache.h"
#include "gpu/config/gpu_driver_bug_workarounds.h"
#include "gpu/config/gpu_feature_info.h"
#include "gpu/gpu_export.h"
#include "gpu/ipc/service/gpu_memory_manager.h"
#include "ui/gfx/gpu_memory_buffer.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/gl/gl_surface.h"
#include "url/gurl.h"
#if defined(OS_ANDROID)
#include "base/android/application_status_listener.h"
#endif
namespace gl {
class GLShareGroup;
}
namespace gpu {
struct GpuPreferences;
class PreemptionFlag;
class Scheduler;
class SyncPointManager;
struct SyncToken;
namespace gles2 {
class MailboxManager;
class Outputter;
class ProgramCache;
}
}
namespace gpu {
class GpuChannel;
class GpuChannelManagerDelegate;
class GpuMemoryBufferFactory;
class GpuWatchdogThread;
// A GpuChannelManager is a thread responsible for issuing rendering commands
// managing the lifetimes of GPU channels and forwarding IPC requests from the
// browser process to them based on the corresponding renderer ID.
class GPU_EXPORT GpuChannelManager {
public:
GpuChannelManager(const GpuPreferences& gpu_preferences,
GpuChannelManagerDelegate* delegate,
GpuWatchdogThread* watchdog,
scoped_refptr<base::SingleThreadTaskRunner> task_runner,
scoped_refptr<base::SingleThreadTaskRunner> io_task_runner,
Scheduler* scheduler,
SyncPointManager* sync_point_manager,
GpuMemoryBufferFactory* gpu_memory_buffer_factory,
const GpuFeatureInfo& gpu_feature_info,
GpuProcessActivityFlags activity_flags);
~GpuChannelManager();
GpuChannelManagerDelegate* delegate() const { return delegate_; }
GpuWatchdogThread* watchdog() const { return watchdog_; }
GpuChannel* EstablishChannel(int client_id,
uint64_t client_tracing_id,
bool is_gpu_host);
void PopulateShaderCache(const std::string& key, const std::string& program);
void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
int client_id,
const SyncToken& sync_token);
#if defined(OS_ANDROID)
void WakeUpGpu();
#endif
void DestroyAllChannels();
// Remove the channel for a particular renderer.
void RemoveChannel(int client_id);
void LoseAllContexts();
void MaybeExitOnContextLost();
const GpuPreferences& gpu_preferences() const { return gpu_preferences_; }
const GpuDriverBugWorkarounds& gpu_driver_bug_workarounds() const {
return gpu_driver_bug_workarounds_;
}
const GpuFeatureInfo& gpu_feature_info() const { return gpu_feature_info_; }
ServiceDiscardableManager* discardable_manager() {
return &discardable_manager_;
}
gles2::Outputter* outputter();
gles2::ProgramCache* program_cache();
gles2::ShaderTranslatorCache* shader_translator_cache() {
return &shader_translator_cache_;
}
gles2::FramebufferCompletenessCache* framebuffer_completeness_cache() {
return &framebuffer_completeness_cache_;
}
GpuMemoryManager* gpu_memory_manager() { return &gpu_memory_manager_; }
GpuChannel* LookupChannel(int32_t client_id) const;
gl::GLSurface* GetDefaultOffscreenSurface();
GpuMemoryBufferFactory* gpu_memory_buffer_factory() {
return gpu_memory_buffer_factory_;
}
#if defined(OS_ANDROID)
void DidAccessGpu();
void OnApplicationStateChange(base::android::ApplicationState state);
void set_low_end_mode_for_testing(bool mode) {
is_running_on_low_end_mode_ = mode;
}
#endif
bool is_exiting_for_lost_context() { return exiting_for_lost_context_; }
gles2::MailboxManager* mailbox_manager() { return mailbox_manager_.get(); }
gl::GLShareGroup* share_group() const { return share_group_.get(); }
void set_share_group(gl::GLShareGroup* share_group);
SyncPointManager* sync_point_manager() const { return sync_point_manager_; }
private:
friend class GpuChannelManagerTest;
void InternalDestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id, int client_id);
void InternalDestroyGpuMemoryBufferOnIO(gfx::GpuMemoryBufferId id,
int client_id);
#if defined(OS_ANDROID)
void ScheduleWakeUpGpu();
void DoWakeUpGpu();
void OnApplicationBackgrounded();
#endif
void HandleMemoryPressure(
base::MemoryPressureListener::MemoryPressureLevel memory_pressure_level);
// These objects manage channels to individual renderer processes. There is
// one channel for each renderer process that has connected to this GPU
// process.
std::unordered_map<int32_t, std::unique_ptr<GpuChannel>> gpu_channels_;
scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
const GpuPreferences gpu_preferences_;
const GpuDriverBugWorkarounds gpu_driver_bug_workarounds_;
GpuChannelManagerDelegate* const delegate_;
GpuWatchdogThread* watchdog_;
scoped_refptr<gl::GLShareGroup> share_group_;
scoped_refptr<PreemptionFlag> preemption_flag_;
std::unique_ptr<gles2::MailboxManager> mailbox_manager_;
std::unique_ptr<gles2::Outputter> outputter_;
GpuMemoryManager gpu_memory_manager_;
Scheduler* scheduler_;
// SyncPointManager guaranteed to outlive running MessageLoop.
SyncPointManager* sync_point_manager_;
std::unique_ptr<gles2::ProgramCache> program_cache_;
gles2::ShaderTranslatorCache shader_translator_cache_;
gles2::FramebufferCompletenessCache framebuffer_completeness_cache_;
scoped_refptr<gl::GLSurface> default_offscreen_surface_;
GpuMemoryBufferFactory* const gpu_memory_buffer_factory_;
GpuFeatureInfo gpu_feature_info_;
ServiceDiscardableManager discardable_manager_;
#if defined(OS_ANDROID)
// Last time we know the GPU was powered on. Global for tracking across all
// transport surfaces.
base::TimeTicks last_gpu_access_time_;
base::TimeTicks begin_wake_up_time_;
base::android::ApplicationStatusListener application_status_listener_;
bool is_running_on_low_end_mode_;
bool is_backgrounded_for_testing_;
#endif
// Set during intentional GPU process shutdown.
bool exiting_for_lost_context_;
// Flags which indicate GPU process activity. Read by the browser process
// on GPU process crash.
GpuProcessActivityFlags activity_flags_;
base::MemoryPressureListener memory_pressure_listener_;
// Member variables should appear before the WeakPtrFactory, to ensure
// that any WeakPtrs to Controller are invalidated before its members
// variable's destructors are executed, rendering them invalid.
base::WeakPtrFactory<GpuChannelManager> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(GpuChannelManager);
};
} // namespace gpu
#endif // GPU_IPC_SERVICE_GPU_CHANNEL_MANAGER_H_
|
