1*d9f75844SAndroid Build Coastguard Worker /* 2*d9f75844SAndroid Build Coastguard Worker * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. 3*d9f75844SAndroid Build Coastguard Worker * 4*d9f75844SAndroid Build Coastguard Worker * Use of this source code is governed by a BSD-style license 5*d9f75844SAndroid Build Coastguard Worker * that can be found in the LICENSE file in the root of the source 6*d9f75844SAndroid Build Coastguard Worker * tree. An additional intellectual property rights grant can be found 7*d9f75844SAndroid Build Coastguard Worker * in the file PATENTS. All contributing project authors may 8*d9f75844SAndroid Build Coastguard Worker * be found in the AUTHORS file in the root of the source tree. 9*d9f75844SAndroid Build Coastguard Worker */ 10*d9f75844SAndroid Build Coastguard Worker 11*d9f75844SAndroid Build Coastguard Worker #ifndef MODULES_DESKTOP_CAPTURE_RESOLUTION_TRACKER_H_ 12*d9f75844SAndroid Build Coastguard Worker #define MODULES_DESKTOP_CAPTURE_RESOLUTION_TRACKER_H_ 13*d9f75844SAndroid Build Coastguard Worker 14*d9f75844SAndroid Build Coastguard Worker #include "modules/desktop_capture/desktop_geometry.h" 15*d9f75844SAndroid Build Coastguard Worker 16*d9f75844SAndroid Build Coastguard Worker namespace webrtc { 17*d9f75844SAndroid Build Coastguard Worker 18*d9f75844SAndroid Build Coastguard Worker class ResolutionTracker final { 19*d9f75844SAndroid Build Coastguard Worker public: 20*d9f75844SAndroid Build Coastguard Worker // Sets the resolution to `size`. Returns true if a previous size was recorded 21*d9f75844SAndroid Build Coastguard Worker // and differs from `size`. 22*d9f75844SAndroid Build Coastguard Worker bool SetResolution(DesktopSize size); 23*d9f75844SAndroid Build Coastguard Worker 24*d9f75844SAndroid Build Coastguard Worker // Resets to the initial state. 25*d9f75844SAndroid Build Coastguard Worker void Reset(); 26*d9f75844SAndroid Build Coastguard Worker 27*d9f75844SAndroid Build Coastguard Worker private: 28*d9f75844SAndroid Build Coastguard Worker DesktopSize last_size_; 29*d9f75844SAndroid Build Coastguard Worker bool initialized_ = false; 30*d9f75844SAndroid Build Coastguard Worker }; 31*d9f75844SAndroid Build Coastguard Worker 32*d9f75844SAndroid Build Coastguard Worker } // namespace webrtc 33*d9f75844SAndroid Build Coastguard Worker 34*d9f75844SAndroid Build Coastguard Worker #endif // MODULES_DESKTOP_CAPTURE_RESOLUTION_TRACKER_H_ 35