Refactoring of the client-side input pipeline and scaling dimension management.

remoting/client/plugin/pepper_view_proxy.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// PepperViewProxy is used to invoke PepperView object on pepper thread. It
-// has the same interface as PepperView. When a method calls is received on
-// any chromoting threads it delegates the method call to pepper thread.
-// It also provide a detach mechanism so that when PepperView object is
-// destroyed PepperViewProxy will not call it anymore. This is important in
-// providing a safe shutdown of ChromotingInstance and PepperView.
-
-// This object is accessed on chromoting threads and pepper thread. The internal
-// PepperView object is only accessed on pepper thread so as the Detach() method
-// call.
-
-#ifndef REMOTING_CLIENT_PLUGIN_PEPPER_VIEW_PROXY_H_
-#define REMOTING_CLIENT_PLUGIN_PEPPER_VIEW_PROXY_H_
-
-#include "base/memory/ref_counted.h"
-#include "remoting/client/plugin/pepper_view.h"
-
-namespace base {
-class MessageLoopProxy;
-}  // namespace base
-
-namespace remoting {
-
-class ChromotingInstance;
-
-class PepperViewProxy : public base::RefCountedThreadSafe<PepperViewProxy>,
-                        public ChromotingView,
-                        public FrameConsumer {
- public:
-  PepperViewProxy(ChromotingInstance* instance, PepperView* view,
-                  base::MessageLoopProxy* plugin_message_loop);
-  virtual ~PepperViewProxy();
-
-  // ChromotingView implementation.
-  virtual bool Initialize() OVERRIDE;
-  virtual void TearDown() OVERRIDE;
-  virtual void Paint() OVERRIDE;
-  virtual void SetSolidFill(uint32 color) OVERRIDE;
-  virtual void UnsetSolidFill() OVERRIDE;
-  virtual void SetConnectionState(
-      protocol::ConnectionToHost::State state,
-      protocol::ConnectionToHost::Error error) OVERRIDE;
-
-  // This method returns a value, so must run synchronously, so must be
-  // called only on the pepper thread.
-  virtual double GetHorizontalScaleRatio() const OVERRIDE;
-  virtual double GetVerticalScaleRatio() const OVERRIDE;
-
-  // FrameConsumer implementation.
-  virtual void AllocateFrame(media::VideoFrame::Format format,
-                             const SkISize& size,
-                             scoped_refptr<media::VideoFrame>* frame_out,
-                             const base::Closure& done) OVERRIDE;
-  virtual void ReleaseFrame(media::VideoFrame* frame) OVERRIDE;
-  virtual void OnPartialFrameOutput(media::VideoFrame* frame,
-                                    RectVector* rects,
-                                    const base::Closure& done) OVERRIDE;
-
-  // Remove the reference to |instance_| and |view_| by setting the value to
-  // NULL.
-  // This method should only be called on pepper thread.
-  void Detach();
-
- private:
-  // This variable is accessed on chromoting threads and pepper thread.
-  // This is initialized when this object is constructed. Its value is reset
-  // to NULL on pepper thread when Detach() is called and there will be no
-  // other threads accessing this variable at the same time. Given the above
-  // conditions locking this variable is not necessary.
-  ChromotingInstance* instance_;
-
-  // This variable is only accessed on the pepper thread. Locking is not
-  // necessary.
-  PepperView* view_;
-
-  scoped_refptr<base::MessageLoopProxy> plugin_message_loop_;
-
-  DISALLOW_COPY_AND_ASSIGN(PepperViewProxy);
-};
-
-}  // namespace remoting
-
-#endif  // REMOTING_CLIENT_PLUGIN_PEPPER_VIEW_PROXY_H_