PentaxDecompressor.h

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/*
    RawSpeed - RAW file decoder.
 
    Copyright (C) 2009-2014 Klaus Post
    Copyright (C) 2017 Axel Waggershauser
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
 
#pragma once
 
#include "adt/Optional.h"
#include "codes/AbstractPrefixCode.h"
#include "codes/HuffmanCode.h"
#include "codes/PrefixCodeDecoder.h"
#include "common/RawImage.h"
#include "decompressors/AbstractDecompressor.h"
#include <array>
#include <cstdint>
 
namespace rawspeed {
 
class ByteStream;
 
class PentaxDecompressor final : public AbstractDecompressor {
  RawImage mRaw;
  const PrefixCodeDecoder<> ht;
 
public:
  PentaxDecompressor(RawImage img, Optional<ByteStream> metaData);
 
  void decompress(ByteStream data) const;
 
private:
  static HuffmanCode<BaselineCodeTag> SetupPrefixCodeDecoder_Legacy();
  static HuffmanCode<BaselineCodeTag>
  SetupPrefixCodeDecoder_Modern(ByteStream stream);
  static PrefixCodeDecoder<>
  SetupPrefixCodeDecoder(Optional<ByteStream> metaData);
 
  static const std::array<std::array<std::array<uint8_t, 16>, 2>, 1>
      pentax_tree;
};
 
} // namespace rawspeed