NefDecoder.h

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/*
    RawSpeed - RAW file decoder.
 
    Copyright (C) 2009-2014 Klaus Post
 
    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 "common/RawImage.h"
#include "decoders/AbstractTiffDecoder.h"
#include "decoders/RawDecoder.h"
#include "io/Buffer.h"
#include "tiff/TiffIFD.h"
#include <array>
#include <cstdint>
#include <string>
#include <utility>
#include <vector>
 
namespace rawspeed {
 
class Buffer;
class ByteStream;
class CameraMetaData;
class iPoint2D;
 
class NefDecoder final : public AbstractTiffDecoder {
public:
  static bool isAppropriateDecoder(const TiffRootIFD* rootIFD, Buffer file);
  NefDecoder(TiffRootIFDOwner&& root, Buffer file)
      : AbstractTiffDecoder(std::move(root), file) {}
 
  RawImage decodeRawInternal() override;
  void decodeMetaDataInternal(const CameraMetaData* meta) override;
  void checkSupportInternal(const CameraMetaData* meta) override;
 
private:
  struct NefSlice final : RawSlice {};
 
  [[nodiscard]] int getDecoderVersion() const override { return 5; }
  [[nodiscard]] bool D100IsCompressed(uint32_t offset) const;
  static bool NEFIsUncompressed(const TiffIFD* raw);
  static bool NEFIsUncompressedRGB(const TiffIFD* raw);
  void DecodeUncompressed() const;
  void DecodeD100Uncompressed() const;
  void DecodeSNefUncompressed() const;
  void readCoolpixSplitRaw(ByteStream input, const iPoint2D& size,
                           const iPoint2D& offset, int inputPitch) const;
  void DecodeNikonSNef(ByteStream input) const;
  void parseWhiteBalance() const;
  [[nodiscard]] int getBitPerSample() const;
  [[nodiscard]] std::string getMode() const;
  [[nodiscard]] std::string getExtendedMode(const std::string& mode) const;
  static std::vector<uint16_t> gammaCurve(double pwr, double ts, int imax);
 
  // We use this for the D50 and D2X whacky WB "encryption"
  static const std::array<uint8_t, 256> serialmap;
  static const std::array<uint8_t, 256> keymap;
};
 
} // namespace rawspeed