DirectX based screen capturer logic

webrtc/modules/desktop_capture/win/callback_shared_memory_factory.h

+/*
+ *  Copyright (c) 2016 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 WEBRTC_MODULES_DESKTOP_CAPTURE_WIN_CALLBACK_SHARED_MEMORY_FACTORY_H_
+#define WEBRTC_MODULES_DESKTOP_CAPTURE_WIN_CALLBACK_SHARED_MEMORY_FACTORY_H_
+
+#include <stddef.h>
+
+#include "webrtc/base/scoped_ptr.h"
+#include "webrtc/modules/desktop_capture/desktop_capturer.h"
+#include "webrtc/modules/desktop_capture/shared_memory.h"
+
+namespace webrtc {
+
+// SharedMemoryFactory that creates SharedMemory using the deprecated
+// DesktopCapturer::Callback::CreateSharedMemory().
+class CallbackSharedMemoryFactory : public SharedMemoryFactory {

[Sergey Ulanov, 2016/03/31 18:41:15]

why do you need this?
I think DesktopCapturer::Callback::CreateSharedMemory() can be removed now. You
certainly don't want to support it in the new capturer.

[Hzj_jie, 2016/04/05 23:15:17]

Done.

+ 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 webrtc
+
+#endif  // WEBRTC_MODULES_DESKTOP_CAPTURE_WIN_CALLBACK_SHARED_MEMORY_FACTORY_H_