OLD | NEW |
---|---|
(Empty) | |
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 #include "remoting/host/desktop_capturer_proxy.h" | |
6 | |
7 #include "base/bind.h" | |
8 #include "base/location.h" | |
9 #include "base/single_thread_task_runner.h" | |
10 #include "base/thread_task_runner_handle.h" | |
11 #include "remoting/proto/control.pb.h" | |
12 #include "third_party/webrtc/modules/desktop_capture/desktop_frame.h" | |
13 #include "third_party/webrtc/modules/desktop_capture/desktop_region.h" | |
14 | |
15 namespace remoting { | |
16 | |
17 class DesktopCapturerProxy::Core : public base::NonThreadSafe, | |
18 public webrtc::DesktopCapturer::Callback { | |
19 public: | |
20 Core(base::WeakPtr<DesktopCapturerProxy> proxy, | |
21 scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner, | |
22 scoped_ptr<webrtc::DesktopCapturer> capturer); | |
23 ~Core(); | |
24 | |
25 void Start(); | |
26 void Capture(const webrtc::DesktopRegion& rect); | |
27 | |
28 private: | |
29 // webrtc::DesktopCapturer::Callback implementation. | |
30 webrtc::SharedMemory* CreateSharedMemory(size_t size) override; | |
31 void OnCaptureCompleted(webrtc::DesktopFrame* frame) override; | |
32 | |
33 base::WeakPtr<DesktopCapturerProxy> proxy_; | |
34 scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner_; | |
35 scoped_ptr<webrtc::DesktopCapturer> capturer_; | |
36 | |
37 DISALLOW_COPY_AND_ASSIGN(Core); | |
38 }; | |
39 | |
40 DesktopCapturerProxy::Core::Core( | |
41 base::WeakPtr<DesktopCapturerProxy> proxy, | |
42 scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner, | |
43 scoped_ptr<webrtc::DesktopCapturer> capturer) | |
44 : proxy_(proxy), | |
45 caller_task_runner_(base::ThreadTaskRunnerHandle::Get()), | |
46 capturer_(capturer.Pass()) { | |
47 DetachFromThread(); | |
48 } | |
49 | |
50 DesktopCapturerProxy::Core::~Core() { | |
51 DCHECK(CalledOnValidThread()); | |
52 } | |
53 | |
54 void DesktopCapturerProxy::Core::Start() { | |
55 DCHECK(CalledOnValidThread()); | |
56 capturer_->Start(this); | |
57 } | |
58 | |
59 void DesktopCapturerProxy::Core::Capture(const webrtc::DesktopRegion& rect) { | |
60 DCHECK(CalledOnValidThread()); | |
61 | |
62 capturer_->Capture(rect); | |
63 } | |
64 | |
65 webrtc::SharedMemory* DesktopCapturerProxy::Core::CreateSharedMemory( | |
66 size_t size) { | |
Wez
2015/02/12 21:59:15
nit: thread DCHECK?
Sergey Ulanov
2015/02/13 08:39:44
Done.
| |
67 // CreateSharedMemory() call is synchronous and cannot be proxied to another | |
68 // thread. | |
69 return nullptr; | |
70 } | |
71 | |
72 void DesktopCapturerProxy::Core::OnCaptureCompleted( | |
73 webrtc::DesktopFrame* frame) { | |
74 DCHECK(CalledOnValidThread()); | |
75 | |
76 caller_task_runner_->PostTask( | |
77 FROM_HERE, base::Bind(&DesktopCapturerProxy::OnFrameCaptured, proxy_, | |
78 base::Passed(make_scoped_ptr(frame)))); | |
79 } | |
80 | |
81 DesktopCapturerProxy::DesktopCapturerProxy( | |
82 scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner, | |
83 scoped_ptr<webrtc::DesktopCapturer> capturer) | |
84 : capture_task_runner_(capture_task_runner), | |
85 weak_factory_(this) { | |
86 core_.reset(new Core(weak_factory_.GetWeakPtr(), capture_task_runner, | |
87 capturer.Pass())); | |
88 } | |
89 | |
90 void DesktopCapturerProxy::Start(Callback* callback) { | |
91 DCHECK(CalledOnValidThread()); | |
92 | |
93 callback_ = callback; | |
94 | |
95 capture_task_runner_->PostTask( | |
96 FROM_HERE, base::Bind(&Core::Start, base::Unretained(core_.get()))); | |
97 } | |
98 | |
99 DesktopCapturerProxy::~DesktopCapturerProxy() { | |
100 DCHECK(CalledOnValidThread()); | |
101 | |
102 capture_task_runner_->DeleteSoon(FROM_HERE, core_.release()); | |
103 } | |
104 | |
105 void DesktopCapturerProxy::Capture(const webrtc::DesktopRegion& rect) { | |
106 DCHECK(CalledOnValidThread()); | |
107 | |
108 // Start() must be called before Capture(). | |
109 DCHECK(callback_); | |
110 | |
111 capture_task_runner_->PostTask( | |
112 FROM_HERE, | |
113 base::Bind(&Core::Capture, base::Unretained(core_.get()), rect)); | |
114 } | |
115 | |
116 void DesktopCapturerProxy::OnFrameCaptured( | |
117 scoped_ptr<webrtc::DesktopFrame> frame) { | |
118 DCHECK(CalledOnValidThread()); | |
119 | |
120 callback_->OnCaptureCompleted(frame.release()); | |
121 } | |
122 | |
123 } // namespace remoting | |
OLD | NEW |