PanasonicV7Decompressor.h

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/*
    RawSpeed - RAW file decoder.
 
    Copyright (C) 2022 Jordan Neumeyer
 
    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 2.1 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 "decompressors/AbstractDecompressor.h"
#include "io/ByteStream.h"
#include <climits>
#include <cstdint>
 
namespace rawspeed {
template <class T> class CroppedArray1DRef;
 
class PanasonicV7Decompressor final : public AbstractDecompressor {
  RawImage mRaw;
 
  ByteStream input;
 
  static constexpr int BytesPerBlock = 16;
  static constexpr int BitsPerSample = 14;
  static constexpr int PixelsPerBlock =
      (CHAR_BIT * BytesPerBlock) / BitsPerSample;
 
  static inline void __attribute__((always_inline))
  decompressBlock(ByteStream block, CroppedArray1DRef<uint16_t> out) noexcept;
 
  void decompressRow(int row) const noexcept;
 
public:
  PanasonicV7Decompressor(RawImage img, ByteStream input_);
 
  void decompress() const;
};
 
} // namespace rawspeed