- add sources.
[platform/framework/web/crosswalk.git] / src / remoting / client / frame_consumer_proxy.h
1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // FrameConsumerProxy is used to allow a FrameConsumer on the UI thread to be
6 // invoked by a Decoder on the decoder thread.  The Detach() method is used by
7 // the proxy's owner before tearing down the FrameConsumer, to prevent any
8 // further invokations reaching it.
9
10 #ifndef REMOTING_CLIENT_FRAME_CONSUMER_PROXY_H_
11 #define REMOTING_CLIENT_FRAME_CONSUMER_PROXY_H_
12
13 #include "base/memory/ref_counted.h"
14 #include "base/memory/weak_ptr.h"
15 #include "remoting/client/frame_consumer.h"
16
17 namespace base {
18 class SingleThreadTaskRunner;
19 }  // namespace base
20
21 namespace remoting {
22
23 class FrameConsumerProxy
24     : public base::RefCountedThreadSafe<FrameConsumerProxy>,
25       public FrameConsumer {
26  public:
27   // Constructs a proxy for |frame_consumer| which will trampoline invocations
28   // to |frame_consumer_message_loop|.
29   FrameConsumerProxy(scoped_refptr<base::SingleThreadTaskRunner> task_runner,
30                      const base::WeakPtr<FrameConsumer>& frame_consumer);
31
32   // FrameConsumer implementation.
33   virtual void ApplyBuffer(const webrtc::DesktopSize& view_size,
34                            const webrtc::DesktopRect& clip_area,
35                            webrtc::DesktopFrame* buffer,
36                            const webrtc::DesktopRegion& region) OVERRIDE;
37   virtual void ReturnBuffer(webrtc::DesktopFrame* buffer) OVERRIDE;
38   virtual void SetSourceSize(const webrtc::DesktopSize& source_size,
39                              const webrtc::DesktopVector& dpi) OVERRIDE;
40   virtual PixelFormat GetPixelFormat() OVERRIDE;
41
42  private:
43   friend class base::RefCountedThreadSafe<FrameConsumerProxy>;
44   virtual ~FrameConsumerProxy();
45
46   base::WeakPtr<FrameConsumer> frame_consumer_;
47   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
48
49   PixelFormat pixel_format_;
50
51   DISALLOW_COPY_AND_ASSIGN(FrameConsumerProxy);
52 };
53
54 }  // namespace remoting
55
56 #endif  // REMOTING_CLIENT_FRAME_CONSUMER_PROXY_H_