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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 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 REMOTING_HOST_CAPTURER_H_ | 5 #ifndef REMOTING_HOST_CAPTURER_H_ |
6 #define REMOTING_HOST_CAPTURER_H_ | 6 #define REMOTING_HOST_CAPTURER_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/callback.h" | 9 #include "base/callback.h" |
10 #include "base/lock.h" | 10 #include "base/lock.h" |
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76 // | 76 // |
77 // If |inval_rects_| is empty, then this does nothing except | 77 // If |inval_rects_| is empty, then this does nothing except |
78 // call the |callback| routine. | 78 // call the |callback| routine. |
79 // | 79 // |
80 // It is OK to call this method while another thread is reading | 80 // It is OK to call this method while another thread is reading |
81 // data of the last capture. | 81 // data of the last capture. |
82 // There can be at most one concurrent read going on when this | 82 // There can be at most one concurrent read going on when this |
83 // method is called. | 83 // method is called. |
84 virtual void CaptureInvalidRects(CaptureCompletedCallback* callback); | 84 virtual void CaptureInvalidRects(CaptureCompletedCallback* callback); |
85 | 85 |
86 static Capturer* Create(MessageLoop* message_loop); | |
dmac
2010/11/23 01:14:57
Can you add a comment on this method? Also, should
Sergey Ulanov
2010/11/23 01:59:18
Done.
| |
87 | |
86 protected: | 88 protected: |
87 // Update the list of |invalid_rects| to prepare for capturing the | 89 // Update the list of |invalid_rects| to prepare for capturing the |
88 // screen data. | 90 // screen data. |
89 // Depending on the platform implementation, this routine might: | 91 // Depending on the platform implementation, this routine might: |
90 // (a) Analyze screen and calculate the list of rects that have changed | 92 // (a) Analyze screen and calculate the list of rects that have changed |
91 // since the last capture. | 93 // since the last capture. |
92 // (b) Merge already-acculumated rects into a more optimal list (for | 94 // (b) Merge already-acculumated rects into a more optimal list (for |
93 // example, by combining or removing rects). | 95 // example, by combining or removing rects). |
94 virtual void CalculateInvalidRects() = 0; | 96 virtual void CalculateInvalidRects() = 0; |
95 | 97 |
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133 // capture. | 135 // capture. |
134 InvalidRects inval_rects_; | 136 InvalidRects inval_rects_; |
135 | 137 |
136 // A lock protecting |inval_rects_| across threads. | 138 // A lock protecting |inval_rects_| across threads. |
137 Lock inval_rects_lock_; | 139 Lock inval_rects_lock_; |
138 }; | 140 }; |
139 | 141 |
140 } // namespace remoting | 142 } // namespace remoting |
141 | 143 |
142 #endif // REMOTING_HOST_CAPTURER_H_ | 144 #endif // REMOTING_HOST_CAPTURER_H_ |
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