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_ 50
