Index: webrtc/modules/desktop_capture/screen_capture_frame_queue.cc |
diff --git a/webrtc/modules/desktop_capture/screen_capture_frame_queue.cc b/webrtc/modules/desktop_capture/screen_capture_frame_queue.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..94d8a27b137600db17dda571b3f5366ec5d637c4 |
--- /dev/null |
+++ b/webrtc/modules/desktop_capture/screen_capture_frame_queue.cc |
@@ -0,0 +1,44 @@ |
+/* |
+ * 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/include/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 |