Index: webrtc/modules/desktop_capture/win/dxgi_frame.cc |
diff --git a/webrtc/modules/desktop_capture/win/dxgi_frame.cc b/webrtc/modules/desktop_capture/win/dxgi_frame.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..0ba678dd0ad21d24831fbff0a87dc24eebd8e3b6 |
--- /dev/null |
+++ b/webrtc/modules/desktop_capture/win/dxgi_frame.cc |
@@ -0,0 +1,66 @@ |
+/* |
+ * Copyright (c) 2017 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/win/dxgi_frame.h" |
+ |
+#include <utility> |
+ |
+#include "webrtc/base/checks.h" |
+#include "webrtc/modules/desktop_capture/desktop_frame.h" |
+#include "webrtc/modules/desktop_capture/win/dxgi_duplicator_controller.h" |
+ |
+namespace webrtc { |
+ |
+DxgiFrame::DxgiFrame(SharedMemoryFactory* factory) |
+ : factory_(factory) {} |
+ |
+DxgiFrame::~DxgiFrame() = default; |
+ |
+bool DxgiFrame::Prepare(DesktopSize size, DesktopCapturer::SourceId source_id) { |
+ if (source_id != source_id_) { |
+ // Once the source has been changed, the entire source should be copied. |
+ source_id_ = source_id; |
+ context_.Reset(); |
+ } |
+ |
+ if (resolution_change_detector_.IsChanged(size)) { |
+ // Once the output size changed, recreate the SharedDesktopFrame. |
+ frame_.reset(); |
+ resolution_change_detector_.Reset(); |
+ } |
+ |
+ if (!frame_) { |
+ std::unique_ptr<DesktopFrame> frame; |
+ if (factory_) { |
+ frame = SharedMemoryDesktopFrame::Create(size, factory_); |
+ } else { |
+ frame.reset(new BasicDesktopFrame(size)); |
+ } |
+ if (!frame) { |
+ return false; |
+ } |
+ |
+ frame_ = SharedDesktopFrame::Wrap(std::move(frame)); |
+ } |
+ |
+ return !!frame_; |
+} |
+ |
+SharedDesktopFrame* DxgiFrame::frame() const { |
+ RTC_DCHECK(frame_); |
+ return frame_.get(); |
+} |
+ |
+DxgiFrame::Context* DxgiFrame::context() { |
+ RTC_DCHECK(frame_); |
+ return &context_; |
+} |
+ |
+} // namespace webrtc |