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 #include "webrtc/modules/desktop_capture/screen_capture_frame_queue.h" 12 13 #include <assert.h> 14 #include <algorithm> 15 16 #include "webrtc/modules/desktop_capture/desktop_frame.h" 17 #include "webrtc/modules/desktop_capture/shared_desktop_frame.h" 18 #include "webrtc/system_wrappers/interface/logging.h" 19 #include "webrtc/typedefs.h" 20 21 namespace webrtc { 22 23 ScreenCaptureFrameQueue::ScreenCaptureFrameQueue() : current_(0) {} 24 25 ScreenCaptureFrameQueue::~ScreenCaptureFrameQueue() {} 26 27 void ScreenCaptureFrameQueue::MoveToNextFrame() { 28 current_ = (current_ + 1) % kQueueLength; 29 30 // Verify that the frame is not shared, i.e. that consumer has released it 31 // before attempting to capture again. 32 assert(!frames_[current_].get() || !frames_[current_]->IsShared()); 33 } 34 35 void ScreenCaptureFrameQueue::ReplaceCurrentFrame(DesktopFrame* frame) { 36 frames_[current_].reset(SharedDesktopFrame::Wrap(frame)); 37 } 38 39 void ScreenCaptureFrameQueue::Reset() { 40 for (int i = 0; i < kQueueLength; ++i) 41 frames_[i].reset(); 42 } 43 44 } // namespace webrtc 45
