Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 83 insertions, 0 deletions

diff --git a/third_party/libwebrtc/modules/desktop_capture/win/screen_capturer_win_gdi.h b/third_party/libwebrtc/modules/desktop_capture/win/screen_capturer_win_gdi.h
new file mode 100644
index 0000000000..7c3977ed42
--- /dev/null
+++ b/third_party/libwebrtc/modules/desktop_capture/win/screen_capturer_win_gdi.h
@@ -0,0 +1,83 @@
+/*
+ *  Copyright (c) 2014 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.
+ */
+
+#ifndef MODULES_DESKTOP_CAPTURE_WIN_SCREEN_CAPTURER_WIN_GDI_H_
+#define MODULES_DESKTOP_CAPTURE_WIN_SCREEN_CAPTURER_WIN_GDI_H_
+
+#include <windows.h>
+
+#include <memory>
+
+#include "modules/desktop_capture/desktop_capturer.h"
+#include "modules/desktop_capture/screen_capture_frame_queue.h"
+#include "modules/desktop_capture/shared_desktop_frame.h"
+#include "modules/desktop_capture/win/display_configuration_monitor.h"
+#include "modules/desktop_capture/win/scoped_thread_desktop.h"
+
+namespace webrtc {
+
+// ScreenCapturerWinGdi captures 32bit RGB using GDI.
+//
+// ScreenCapturerWinGdi is double-buffered as required by ScreenCapturer.
+// This class does not detect DesktopFrame::updated_region(), the field is
+// always set to the entire frame rectangle. ScreenCapturerDifferWrapper should
+// be used if that functionality is necessary.
+class ScreenCapturerWinGdi : public DesktopCapturer {
+ public:
+  explicit ScreenCapturerWinGdi(const DesktopCaptureOptions& options);
+  ~ScreenCapturerWinGdi() override;
+
+  ScreenCapturerWinGdi(const ScreenCapturerWinGdi&) = delete;
+  ScreenCapturerWinGdi& operator=(const ScreenCapturerWinGdi&) = delete;
+
+  // Overridden from ScreenCapturer:
+  void Start(Callback* callback) override;
+  void SetSharedMemoryFactory(
+      std::unique_ptr<SharedMemoryFactory> shared_memory_factory) override;
+  void CaptureFrame() override;
+  bool GetSourceList(SourceList* sources) override;
+  bool SelectSource(SourceId id) override;
+
+ private:
+  typedef HRESULT(WINAPI* DwmEnableCompositionFunc)(UINT);
+
+  // Make sure that the device contexts match the screen configuration.
+  void PrepareCaptureResources();
+
+  // Captures the current screen contents into the current buffer. Returns true
+  // if succeeded.
+  bool CaptureImage();
+
+  // Capture the current cursor shape.
+  void CaptureCursor();
+
+  Callback* callback_ = nullptr;
+  std::unique_ptr<SharedMemoryFactory> shared_memory_factory_;
+  SourceId current_screen_id_ = kFullDesktopScreenId;
+  std::wstring current_device_key_;
+
+  ScopedThreadDesktop desktop_;
+
+  // GDI resources used for screen capture.
+  HDC desktop_dc_ = NULL;
+  HDC memory_dc_ = NULL;
+
+  // Queue of the frames buffers.
+  ScreenCaptureFrameQueue<SharedDesktopFrame> queue_;
+
+  DisplayConfigurationMonitor display_configuration_monitor_;
+
+  HMODULE dwmapi_library_ = NULL;
+  DwmEnableCompositionFunc composition_func_ = nullptr;
+};
+
+}  // namespace webrtc
+
+#endif  // MODULES_DESKTOP_CAPTURE_WIN_SCREEN_CAPTURER_WIN_GDI_H_