jFEXCompression.h

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/*
  Copyright (C) 2002-2023 CERN for the benefit of the ATLAS collaboration
*/
/***************************************************************************
                          jFEXCompression.h  -  description
                             -------------------
    begin                : 07-02-2019 
    email                : Alan.Watson@cern.ch antonio.jacques.costa@cern.ch
 ***************************************************************************/
 
                                                                                
 #ifndef jFEXCompression_H
 #define jFEXCompression_H
                                                                                
#include <array>
 
namespace LVL1 {

class jFEXCompression {
 
public: 
  static unsigned int Compress(float floatEt, bool empty = false);
  static int Expand(unsigned int code);
  static unsigned int Threshold(unsigned int code, int threshold = -800);
  static unsigned int Linearize(unsigned int code, int threshold = 0);
 
private: 
  static const int s_maxET = 800000;
  static const unsigned int s_nRanges = 5;
  static const int s_steps[s_nRanges];
  static const int s_minET[s_nRanges];
  static const int s_minCode[s_nRanges];
  static const int s_NoData = 0;
  static const unsigned int s_LArUnderflow = 1;
  static const unsigned int s_LArOverflow  = 4048;
  static const unsigned int s_LArMaxCode   = 4095;
  static const unsigned int s_LArInvalid   = 4095;
  static const unsigned int s_jFEXstep     = 25;
  static const unsigned int s_jFEXOverflow = 0xffff;
  static const int s_error = -99999;
};
 
 
}//end of ns
 
#endif