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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef UI_OZONE_PLATFORM_DRM_GPU_DRM_DEVICE_MANAGER_H_ | 5 #ifndef UI_OZONE_PLATFORM_DRM_GPU_DRM_DEVICE_MANAGER_H_ |
6 #define UI_OZONE_PLATFORM_DRM_GPU_DRM_DEVICE_MANAGER_H_ | 6 #define UI_OZONE_PLATFORM_DRM_GPU_DRM_DEVICE_MANAGER_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
11 #include "base/files/file_path.h" | |
12 #include "base/files/scoped_file.h" | |
11 #include "base/memory/ref_counted.h" | 13 #include "base/memory/ref_counted.h" |
12 #include "base/memory/scoped_ptr.h" | 14 #include "base/memory/scoped_ptr.h" |
13 #include "base/synchronization/lock.h" | 15 #include "base/synchronization/lock.h" |
14 #include "base/threading/thread_checker.h" | 16 #include "base/threading/thread_checker.h" |
15 #include "ui/gfx/native_widget_types.h" | 17 #include "ui/gfx/native_widget_types.h" |
16 #include "ui/ozone/ozone_export.h" | 18 #include "ui/ozone/ozone_export.h" |
17 | 19 |
18 namespace base { | 20 namespace base { |
19 class FilePath; | |
20 struct FileDescriptor; | 21 struct FileDescriptor; |
21 class SingleThreadTaskRunner; | 22 class SingleThreadTaskRunner; |
22 } | 23 } |
23 | 24 |
24 namespace ui { | 25 namespace ui { |
25 | 26 |
26 class DrmDevice; | 27 class DrmDevice; |
27 class DrmDeviceGenerator; | 28 class DrmDeviceGenerator; |
28 | 29 |
29 typedef std::vector<scoped_refptr<DrmDevice>> DrmDeviceVector; | 30 typedef std::vector<scoped_refptr<DrmDevice>> DrmDeviceVector; |
30 | 31 |
31 // Tracks the mapping between widgets and the DRM devices used to allocate | 32 // Tracks the mapping between widgets and the DRM devices used to allocate |
32 // buffers for the window represented by the widget. | 33 // buffers for the window represented by the widget. |
33 // Note: All calls are protected by a lock since | 34 // Note: All calls are protected by a lock since |
34 // GetDrmDevice(gfx::AcceleratedWidget) may be called on the IO thread. | 35 // GetDrmDevice(gfx::AcceleratedWidget) may be called on the IO thread. |
35 class OZONE_EXPORT DrmDeviceManager { | 36 class OZONE_EXPORT DrmDeviceManager { |
36 public: | 37 public: |
37 DrmDeviceManager(scoped_ptr<DrmDeviceGenerator> drm_device_generator); | 38 DrmDeviceManager(scoped_ptr<DrmDeviceGenerator> drm_device_generator); |
38 ~DrmDeviceManager(); | 39 ~DrmDeviceManager(); |
39 | 40 |
40 // The first device registered is assumed to be the primary device. | 41 // The first device registered is assumed to be the primary device. |
41 bool AddDrmDevice(const base::FilePath& path, const base::FileDescriptor& fd); | 42 bool AddDrmDevice(const base::FilePath& path, |
43 const base::FileDescriptor& fd, | |
44 bool is_vgem); | |
42 void RemoveDrmDevice(const base::FilePath& path); | 45 void RemoveDrmDevice(const base::FilePath& path); |
43 | 46 |
44 void InitializeIOTaskRunner( | 47 void InitializeIOTaskRunner( |
45 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner); | 48 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner); |
46 | 49 |
47 // Updates the device associated with |widget|. | 50 // Updates the device associated with |widget|. |
48 void UpdateDrmDevice(gfx::AcceleratedWidget widget, | 51 void UpdateDrmDevice(gfx::AcceleratedWidget widget, |
49 const scoped_refptr<DrmDevice>& device); | 52 const scoped_refptr<DrmDevice>& device); |
50 | 53 |
51 // Removes the device associated with |widget|. | 54 // Removes the device associated with |widget|. |
52 void RemoveDrmDevice(gfx::AcceleratedWidget widget); | 55 void RemoveDrmDevice(gfx::AcceleratedWidget widget); |
53 | 56 |
54 // Returns the device associated with |widget|. If there is no association | 57 // Returns the device associated with |widget|. If there is no association |
55 // returns |primary_device_|. | 58 // returns |primary_device_|. |
56 scoped_refptr<DrmDevice> GetDrmDevice(gfx::AcceleratedWidget widget); | 59 scoped_refptr<DrmDevice> GetDrmDevice(gfx::AcceleratedWidget widget); |
57 | 60 |
58 const DrmDeviceVector& GetDrmDevices() const; | 61 const DrmDeviceVector& GetDrmDevices() const; |
59 | 62 |
63 int GetVgemDevice() const; | |
dshwang
2015/05/11 13:25:33
This method is needed to implement zero/one-copy t
| |
64 | |
60 private: | 65 private: |
61 // With the exception of GetDrmDevice() all functions must be called on GPU | 66 // With the exception of GetDrmDevice() all functions must be called on GPU |
62 // main. | 67 // main. |
63 base::ThreadChecker thread_checker_; | 68 base::ThreadChecker thread_checker_; |
64 | 69 |
65 scoped_ptr<DrmDeviceGenerator> drm_device_generator_; | 70 scoped_ptr<DrmDeviceGenerator> drm_device_generator_; |
66 | 71 |
67 scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_; | 72 scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_; |
68 | 73 |
69 DrmDeviceVector devices_; | 74 DrmDeviceVector devices_; |
70 | 75 |
71 std::map<gfx::AcceleratedWidget, scoped_refptr<DrmDevice>> drm_device_map_; | 76 std::map<gfx::AcceleratedWidget, scoped_refptr<DrmDevice>> drm_device_map_; |
72 | 77 |
73 // This device represents the primary graphics device and is used when: | 78 // This device represents the primary graphics device and is used when: |
74 // 1) 'widget == kNullAcceleratedWidget' when the API requesting a buffer has | 79 // 1) 'widget == kNullAcceleratedWidget' when the API requesting a buffer has |
75 // no knowledge of the surface/display it belongs to (currently this happens | 80 // no knowledge of the surface/display it belongs to (currently this happens |
76 // for video buffers), or | 81 // for video buffers), or |
77 // 2) in order to allocate buffers for unmatched surfaces (surfaces without a | 82 // 2) in order to allocate buffers for unmatched surfaces (surfaces without a |
78 // display; ie: when in headless mode). | 83 // display; ie: when in headless mode). |
79 scoped_refptr<DrmDevice> primary_device_; | 84 scoped_refptr<DrmDevice> primary_device_; |
80 | 85 |
86 base::ScopedFD vgem_device_; | |
87 base::FilePath vgem_path_; | |
88 | |
81 // This class is accessed from the main thread and the IO thread. This lock | 89 // This class is accessed from the main thread and the IO thread. This lock |
82 // protects access to the device map. | 90 // protects access to the device map. |
83 base::Lock lock_; | 91 base::Lock lock_; |
84 | 92 |
85 DISALLOW_COPY_AND_ASSIGN(DrmDeviceManager); | 93 DISALLOW_COPY_AND_ASSIGN(DrmDeviceManager); |
86 }; | 94 }; |
87 | 95 |
88 } // namespace ui | 96 } // namespace ui |
89 | 97 |
90 #endif // UI_OZONE_PLATFORM_DRM_GPU_DRM_DEVICE_MANAGER_H_ | 98 #endif // UI_OZONE_PLATFORM_DRM_GPU_DRM_DEVICE_MANAGER_H_ |
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