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1 // Copyright 2015 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 #ifndef COMPONENTS_MUS_GLES2_GPU_STATE_H_ | |
6 #define COMPONENTS_MUS_GLES2_GPU_STATE_H_ | |
7 | |
8 #include <memory> | |
9 | |
10 #include "base/memory/ref_counted.h" | |
11 #include "base/single_thread_task_runner.h" | |
12 #include "base/threading/thread.h" | |
13 #include "components/mus/gles2/command_buffer_driver_manager.h" | |
14 #include "components/mus/gles2/command_buffer_task_runner.h" | |
15 #include "gpu/command_buffer/service/gpu_preferences.h" | |
16 #include "gpu/command_buffer/service/mailbox_manager_impl.h" | |
17 #include "gpu/command_buffer/service/sync_point_manager.h" | |
18 #include "gpu/config/gpu_driver_bug_workarounds.h" | |
19 #include "gpu/config/gpu_info.h" | |
20 #include "ui/gl/gl_share_group.h" | |
21 | |
22 namespace { | |
23 class WaitableEvent; | |
24 } | |
25 | |
26 namespace mus { | |
27 | |
28 // We need to share these across all CommandBuffer instances so that contexts | |
29 // they create can share resources with each other via mailboxes. | |
30 class GpuState : public base::RefCountedThreadSafe<GpuState> { | |
31 public: | |
32 GpuState(); | |
33 | |
34 // We run the CommandBufferImpl on the control_task_runner, which forwards | |
35 // most method class to the CommandBufferDriver, which runs on the "driver", | |
36 // thread (i.e., the thread on which GpuImpl instances are created). | |
37 scoped_refptr<base::SingleThreadTaskRunner> control_task_runner() { | |
38 return control_thread_task_runner_; | |
39 } | |
40 | |
41 void StopThreads(); | |
42 | |
43 const gpu::GpuPreferences& gpu_preferences() const { | |
44 return gpu_preferences_; | |
45 } | |
46 | |
47 const gpu::GpuDriverBugWorkarounds& gpu_driver_bug_workarounds() const { | |
48 return gpu_driver_bug_workarounds_; | |
49 } | |
50 | |
51 CommandBufferTaskRunner* command_buffer_task_runner() const { | |
52 return command_buffer_task_runner_.get(); | |
53 } | |
54 | |
55 CommandBufferDriverManager* driver_manager() const { | |
56 return driver_manager_.get(); | |
57 } | |
58 | |
59 // These objects are intended to be used on the "driver" thread (i.e., the | |
60 // thread on which GpuImpl instances are created). | |
61 gl::GLShareGroup* share_group() const { return share_group_.get(); } | |
62 gpu::gles2::MailboxManager* mailbox_manager() const { | |
63 return mailbox_manager_.get(); | |
64 } | |
65 gpu::SyncPointManager* sync_point_manager() const { | |
66 return sync_point_manager_.get(); | |
67 } | |
68 | |
69 const gpu::GPUInfo& gpu_info() const { | |
70 return gpu_info_; | |
71 } | |
72 | |
73 bool HardwareRenderingAvailable() const { | |
74 return hardware_rendering_available_; | |
75 } | |
76 | |
77 private: | |
78 friend class base::RefCountedThreadSafe<GpuState>; | |
79 ~GpuState(); | |
80 | |
81 void InitializeOnGpuThread(base::WaitableEvent* event); | |
82 | |
83 void DestroyGpuSpecificStateOnGpuThread(); | |
84 | |
85 // |gpu_thread_| is for executing OS GL calls. | |
86 base::Thread gpu_thread_; | |
87 // |control_thread_| is for mojo incoming calls of CommandBufferImpl. | |
88 base::Thread control_thread_; | |
89 | |
90 // Same as control_thread_->task_runner(). The TaskRunner is cached as it may | |
91 // be needed during shutdown. | |
92 scoped_refptr<base::SingleThreadTaskRunner> control_thread_task_runner_; | |
93 | |
94 gpu::GpuPreferences gpu_preferences_; | |
95 const gpu::GpuDriverBugWorkarounds gpu_driver_bug_workarounds_; | |
96 scoped_refptr<CommandBufferTaskRunner> command_buffer_task_runner_; | |
97 std::unique_ptr<CommandBufferDriverManager> driver_manager_; | |
98 std::unique_ptr<gpu::SyncPointManager> sync_point_manager_; | |
99 scoped_refptr<gl::GLShareGroup> share_group_; | |
100 scoped_refptr<gpu::gles2::MailboxManager> mailbox_manager_; | |
101 gpu::GPUInfo gpu_info_; | |
102 bool hardware_rendering_available_; | |
103 }; | |
104 | |
105 } // namespace mus | |
106 | |
107 #endif // COMPONENTS_MUS_GLES2_GPU_STATE_H_ | |
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