Revert 55405 - Special thanks for in-ming cheng's MFT hardware decodering cod...

chrome/renderer/gpu_video_decoder_host.h

-// Copyright (c) 2010 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.
-
-#ifndef CHROME_RENDERER_GPU_VIDEO_DECODER_HOST_H_
-#define CHROME_RENDERER_GPU_VIDEO_DECODER_HOST_H_
-
-#include <deque>
-
-#include "base/singleton.h"
-#include "chrome/common/gpu_video_common.h"
-#include "chrome/renderer/gpu_channel_host.h"
-#include "ipc/ipc_channel_proxy.h"
-#include "media/base/buffers.h"
-#include "media/base/video_frame.h"
-
-using media::VideoFrame;
-using media::Buffer;
-
-class GpuVideoServiceHost;
-
-class GpuVideoDecoderHost
-    : public base::RefCountedThreadSafe<GpuVideoDecoderHost>,
-      public IPC::Channel::Listener {
- public:
-  class EventHandler {
-   public:
-    virtual void OnInitializeDone(
-        bool success,
-        const GpuVideoDecoderInitDoneParam& param) = 0;
-    virtual void OnUninitializeDone() = 0;
-    virtual void OnFlushDone() = 0;
-    virtual void OnEmptyBufferDone(scoped_refptr<Buffer> buffer) = 0;
-    virtual void OnFillBufferDone(scoped_refptr<VideoFrame> frame) = 0;
-    virtual void OnDeviceError() = 0;
-  };
-
-  typedef enum {
-    kStateUninitialized,
-    kStateNormal,
-    kStateError,
-    kStateFlushing,
-  } GpuVideoDecoderHostState;
-
-  // IPC::Channel::Listener.
-  virtual void OnChannelConnected(int32 peer_pid) {}
-  virtual void OnChannelError();
-  virtual void OnMessageReceived(const IPC::Message& message);
-
-  bool Initialize(const GpuVideoDecoderInitParam& param);
-  bool Uninitialize();
-  void EmptyThisBuffer(scoped_refptr<Buffer> buffer);
-  void FillThisBuffer(scoped_refptr<VideoFrame> frame);
-  bool Flush();
-
-  int32 decoder_id() { return decoder_info_.decoder_id_; }
-  int32 route_id() { return decoder_info_.decoder_route_id_; }
-  int32 my_route_id() { return decoder_info_.decoder_host_route_id_; }
-
-  virtual ~GpuVideoDecoderHost() {}
-
- private:
-  GpuVideoDecoderHost(GpuVideoServiceHost* service_host,
-                      GpuChannelHost* channel_host,
-                      EventHandler* event_handler,
-                      GpuVideoDecoderInfoParam decoder_info)
-      : gpu_video_service_host_(service_host),
-        channel_host_(channel_host),
-        event_handler_(event_handler),
-        decoder_info_(decoder_info),
-        buffer_id_serial_(0),
-        state_(kStateUninitialized),
-        input_buffer_busy_(false) {}
-  friend class GpuVideoServiceHost;
-
-  // Input message handler.
-  void OnInitializeDone(const GpuVideoDecoderInitDoneParam& param);
-  void OnUninitializeDone();
-  void OnFlushDone();
-  void OnEmptyThisBufferDone();
-  void OnFillThisBufferDone(const GpuVideoDecoderOutputBufferParam& param);
-  void OnEmptyThisBufferACK();
-
-  // Helper function.
-  void SendInputBufferToGpu();
-
-  // We expect that GpuVideoServiceHost's always available during our life span.
-  GpuVideoServiceHost* gpu_video_service_host_;
-
-  scoped_refptr<GpuChannelHost> channel_host_;
-
-  // We expect that the client of us will always available during our life span.
-  EventHandler* event_handler_;
-
-  // Globally identify this decoder in the GPU process.
-  GpuVideoDecoderInfoParam decoder_info_;
-
-  // Input buffer id serial number generator.
-  int32 buffer_id_serial_;
-
-  // Hold information about GpuVideoDecoder configuration.
-  GpuVideoDecoderInitParam init_param_;
-
-  // Hold information about output surface format, etc.
-  GpuVideoDecoderInitDoneParam done_param_;
-
-  // Current state of video decoder.
-  GpuVideoDecoderHostState state_;
-
-  // We are not able to push all received buffer to gpu process at once.
-  std::deque<scoped_refptr<Buffer> > input_buffer_queue_;
-
-  // Currently we do not use ring buffer in input buffer, therefore before
-  // GPU process had finished access it, we should not touch it.
-  bool input_buffer_busy_;
-
-  // Transfer buffers for both input and output.
-  // TODO(jiesun): remove output buffer when hardware composition is ready.
-  scoped_ptr<base::SharedMemory> input_transfer_buffer_;
-  scoped_ptr<base::SharedMemory> output_transfer_buffer_;
-
-  DISALLOW_COPY_AND_ASSIGN(GpuVideoDecoderHost);
-};
-
-#endif  // CHROME_RENDERER_GPU_VIDEO_DECODER_HOST_H_
-