DirectX based screen capturer logic

webrtc/modules/desktop_capture/win/screen_capturer_win_gdi.cc

 /*
  *  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.
  */
 
 #include "webrtc/modules/desktop_capture/win/screen_capturer_win_gdi.h"
 
 #include <assert.h>
 
 #include <utility>
 
 #include "webrtc/modules/desktop_capture/desktop_capture_options.h"
 #include "webrtc/modules/desktop_capture/desktop_frame.h"
 #include "webrtc/modules/desktop_capture/desktop_frame_win.h"
 #include "webrtc/modules/desktop_capture/desktop_region.h"
 #include "webrtc/modules/desktop_capture/differ.h"
 #include "webrtc/modules/desktop_capture/mouse_cursor.h"
+#include "webrtc/modules/desktop_capture/win/callback_shared_memory_factory.h"
 #include "webrtc/modules/desktop_capture/win/cursor.h"
 #include "webrtc/modules/desktop_capture/win/desktop.h"
 #include "webrtc/modules/desktop_capture/win/screen_capture_utils.h"
 #include "webrtc/system_wrappers/include/logging.h"
 #include "webrtc/system_wrappers/include/tick_util.h"
 
 namespace webrtc {
 
 namespace {
 
 // Constants from dwmapi.h.
 const UINT DWM_EC_DISABLECOMPOSITION = 0;
 const UINT DWM_EC_ENABLECOMPOSITION = 1;
 
 const wchar_t kDwmapiLibraryName[] = L"dwmapi.dll";
 
-// SharedMemoryFactory that creates SharedMemory using the deprecated
-// DesktopCapturer::Callback::CreateSharedMemory().
-class CallbackSharedMemoryFactory : public SharedMemoryFactory {
- public:
-  CallbackSharedMemoryFactory(DesktopCapturer::Callback* callback)
-      : callback_(callback) {}
-  ~CallbackSharedMemoryFactory() override {}
-
-  rtc::scoped_ptr<SharedMemory> CreateSharedMemory(size_t size) override {
-    return rtc::scoped_ptr<SharedMemory>(callback_->CreateSharedMemory(size));
-  }
-
- private:
-  DesktopCapturer::Callback* callback_;
-};
-
 }  // namespace
 
 ScreenCapturerWinGdi::ScreenCapturerWinGdi(const DesktopCaptureOptions& options)
     : callback_(NULL),
       current_screen_id_(kFullDesktopScreenId),
       desktop_dc_(NULL),
       memory_dc_(NULL),
       dwmapi_library_(NULL),
       composition_func_(NULL),
       set_thread_execution_state_failed_(false) {
@@ skipping 218 matching lines @@
            SRCCOPY | CAPTUREBLT);
 
     // Select back the previously selected object to that the device contect
     // could be destroyed independently of the bitmap if needed.
     SelectObject(memory_dc_, previous_object);
   }
   return true;
 }
 
 }  // namespace webrtc