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// 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_GPU_GPU_VIDEO_DECODER_H_
#define CHROME_GPU_GPU_VIDEO_DECODER_H_
#include "base/basictypes.h"
#include "base/callback.h"
#include "base/ref_counted.h"
#include "base/scoped_ptr.h"
#include "chrome/common/gpu_video_common.h"
#include "ipc/ipc_channel.h"
class GpuChannel;
class GpuVideoDecoder
: public IPC::Channel::Listener,
public base::RefCountedThreadSafe<GpuVideoDecoder> {
public:
// IPC::Channel::Listener.
virtual void OnChannelConnected(int32 peer_pid);
virtual void OnChannelError();
virtual void OnMessageReceived(const IPC::Message& message);
virtual bool DoInitialize(const GpuVideoDecoderInitParam& init_param,
GpuVideoDecoderInitDoneParam* done_param) = 0;
virtual bool DoUninitialize() = 0;
virtual void DoFlush() = 0;
virtual void DoEmptyThisBuffer(
const GpuVideoDecoderInputBufferParam& buffer) = 0;
virtual void DoFillThisBuffer(
const GpuVideoDecoderOutputBufferParam& frame) = 0;
virtual void DoFillThisBufferDoneACK() = 0;
GpuVideoDecoder(const GpuVideoDecoderInfoParam* param,
GpuChannel* channel_,
base::ProcessHandle handle);
virtual ~GpuVideoDecoder() {}
protected:
// Output message helper.
void SendInitializeDone(const GpuVideoDecoderInitDoneParam& param);
void SendUninitializeDone();
void SendFlushDone();
void SendEmptyBufferDone();
void SendEmptyBufferACK();
void SendFillBufferDone(const GpuVideoDecoderOutputBufferParam& frame);
int32 route_id() { return decoder_host_route_id_; }
int32 decoder_host_route_id_;
GpuChannel* channel_;
base::ProcessHandle renderer_handle_;
GpuVideoDecoderInitParam init_param_;
GpuVideoDecoderInitDoneParam done_param_;
scoped_ptr<base::SharedMemory> input_transfer_buffer_;
scoped_ptr<base::SharedMemory> output_transfer_buffer_;
private:
// Input message handler.
void OnInitialize(const GpuVideoDecoderInitParam& param);
void OnUninitialize();
void OnFlush();
void OnEmptyThisBuffer(const GpuVideoDecoderInputBufferParam& buffer);
void OnFillThisBuffer(const GpuVideoDecoderOutputBufferParam& frame);
void OnFillThisBufferDoneACK();
DISALLOW_COPY_AND_ASSIGN(GpuVideoDecoder);
};
#endif // CHROME_GPU_GPU_VIDEO_DECODER_H_
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