| /* |
| * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include "webrtc/modules/desktop_capture/screen_capture_frame_queue.h" |
| |
| #include <assert.h> |
| #include <algorithm> |
| |
| #include "webrtc/modules/desktop_capture/desktop_frame.h" |
| #include "webrtc/modules/desktop_capture/shared_desktop_frame.h" |
| #include "webrtc/system_wrappers/interface/logging.h" |
| #include "webrtc/typedefs.h" |
| |
| namespace webrtc { |
| |
| ScreenCaptureFrameQueue::ScreenCaptureFrameQueue() : current_(0) {} |
| |
| ScreenCaptureFrameQueue::~ScreenCaptureFrameQueue() {} |
| |
| void ScreenCaptureFrameQueue::MoveToNextFrame() { |
| current_ = (current_ + 1) % kQueueLength; |
| |
| // Verify that the frame is not shared, i.e. that consumer has released it |
| // before attempting to capture again. |
| assert(!frames_[current_].get() || !frames_[current_]->IsShared()); |
| } |
| |
| void ScreenCaptureFrameQueue::ReplaceCurrentFrame(DesktopFrame* frame) { |
| frames_[current_].reset(SharedDesktopFrame::Wrap(frame)); |
| } |
| |
| void ScreenCaptureFrameQueue::Reset() { |
| for (int i = 0; i < kQueueLength; ++i) |
| frames_[i].reset(); |
| } |
| |
| } // namespace webrtc |