sergeyu@chromium.org | 6c82a7e | 2013-06-04 18:51:23 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license |
| 5 | * that can be found in the LICENSE file in the root of the source |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
| 11 | #ifndef WEBRTC_MODULES_DESKTOP_CAPTURE_SHARED_DESKTOP_FRAME_H_ |
| 12 | #define WEBRTC_MODULES_DESKTOP_CAPTURE_SHARED_DESKTOP_FRAME_H_ |
| 13 | |
| 14 | #include "webrtc/modules/desktop_capture/desktop_frame.h" |
| 15 | #include "webrtc/system_wrappers/interface/scoped_refptr.h" |
| 16 | |
| 17 | namespace webrtc { |
| 18 | |
| 19 | // SharedDesktopFrame is a DesktopFrame that may have multiple instances all |
| 20 | // sharing the same buffer. |
| 21 | class SharedDesktopFrame : public DesktopFrame { |
| 22 | public: |
| 23 | virtual ~SharedDesktopFrame(); |
| 24 | |
| 25 | static SharedDesktopFrame* Wrap(DesktopFrame* desktop_frame); |
| 26 | |
| 27 | // Returns the underlying instance of DesktopFrame. |
| 28 | DesktopFrame* GetUnderlyingFrame(); |
| 29 | |
| 30 | // Creates a clone of this object. |
| 31 | SharedDesktopFrame* Share(); |
| 32 | |
| 33 | // Checks if the frame is currently shared. If it returns false it's |
| 34 | // guaranteed that there are no clones of the object. |
| 35 | bool IsShared(); |
| 36 | |
| 37 | private: |
| 38 | class Core; |
| 39 | |
| 40 | SharedDesktopFrame(scoped_refptr<Core> core); |
| 41 | |
| 42 | scoped_refptr<Core> core_; |
| 43 | |
| 44 | DISALLOW_COPY_AND_ASSIGN(SharedDesktopFrame); |
| 45 | }; |
| 46 | |
| 47 | } // namespace webrtc |
| 48 | |
| 49 | #endif // WEBRTC_MODULES_DESKTOP_CAPTURE_SHARED_DESKTOP_FRAME_H_ |