PreDigit.h

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
#ifndef ALICEO2_ITSMFT_PREDIGIT_H
#define ALICEO2_ITSMFT_PREDIGIT_H
 
#include "SimulationDataFormat/MCCompLabel.h"
 
 
namespace o2
{
 
namespace itsmft
{
 
// PreDigit is a contribution to the digit from a single hit which happen
// to be registered 1st in given chip row/column/roframe
// Eventual extra contributions will be registered as PreDigitExtra, pointed by
// the "next" index
 
// PreDigitExtra registers additional contributions to the same row/column/roframe
struct PreDigitLabelRef {
  o2::MCCompLabel label; 
  int next = -1;         
  PreDigitLabelRef(o2::MCCompLabel lbl = 0, int nxt = -1) : label(lbl), next(nxt) {}
 
  ClassDefNV(PreDigitLabelRef, 1);
};
 
struct PreDigit {
  UShort_t row = 0;          
  UShort_t col = 0;          
  UInt_t roFrame = 0;        
  int charge = 0.f;          
  PreDigitLabelRef labelRef; 
 
  PreDigit(UInt_t rf = 0, UShort_t rw = 0, UShort_t cl = 0, int nele = 0, o2::MCCompLabel lbl = 0)
    : row(rw), col(cl), roFrame(rf), charge(nele), labelRef(lbl) {}
 
  ClassDefNV(PreDigit, 1);
};
} // namespace itsmft
} // namespace o2
#endif /* ALICEO2_ITSMFT_PREDIGIT_H */