// Copyright (c) 2012 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 REMOTING_CODEC_VIDEO_DECODER_VERBATIM_H_
#define REMOTING_CODEC_VIDEO_DECODER_VERBATIM_H_

#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "remoting/codec/video_decoder.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_region.h"

namespace remoting {

// Video decoder implementations that decodes video packet encoded by
// VideoEncoderVerbatim. It just copies data from incoming packets to the
// video frames.
class VideoDecoderVerbatim : public VideoDecoder {
 public:
  ~VideoDecoderVerbatim() override;

  VideoDecoderVerbatim();

  // VideoDecoder implementation.
  void Initialize(const webrtc::DesktopSize& screen_size) override;
  bool DecodePacket(const VideoPacket& packet) override;
  void Invalidate(const webrtc::DesktopSize& view_size,
                  const webrtc::DesktopRegion& region) override;
  void RenderFrame(const webrtc::DesktopSize& view_size,
                   const webrtc::DesktopRect& clip_area,
                   uint8* image_buffer,
                   int image_stride,
                   webrtc::DesktopRegion* output_region) override;
  const webrtc::DesktopRegion* GetImageShape() override;

 private:
  // The region updated that hasn't been copied to the screen yet.
  webrtc::DesktopRegion updated_region_;

  // Size of the remote screen.
  webrtc::DesktopSize screen_size_;

  // The bitmap holding the remote screen bits.
  scoped_ptr<uint8[]> screen_buffer_;

  DISALLOW_COPY_AND_ASSIGN(VideoDecoderVerbatim);
};

}  // namespace remoting

#endif  // REMOTING_CODEC_VIDEO_DECODER_VERBATIM_H_