Digitizer.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_PHOS_DIGITIZER_H
#define ALICEO2_PHOS_DIGITIZER_H
 
#include "DataFormatsPHOS/Digit.h"
#include "DataFormatsPHOS/CalibParams.h"
#include "DataFormatsPHOS/TriggerMap.h"
#include "DataFormatsPHOS/MCLabel.h"
#include "PHOSBase/Geometry.h"
#include "PHOSBase/Hit.h"
#include "SimulationDataFormat/MCTruthContainer.h"
 
namespace o2
{
namespace phos
{
class Digitizer : public TObject
{
 public:
  Digitizer() = default;
  ~Digitizer() override = default;
  Digitizer(const Digitizer&) = delete;
  Digitizer& operator=(const Digitizer&) = delete;
 
  void init();
  void finish();
 
  void processHits(const std::vector<Hit>* mHits, const std::vector<Digit>& digitsBg,
                   std::vector<Digit>& digitsOut, o2::dataformats::MCTruthContainer<MCLabel>& mLabels,
                   int source, int entry, double dt);
  void processMC(bool mc) { mProcessMC = mc; }
 
  void setRunStartTime(long t) { mRunStartTime = t; }
  long runStartTime() const { return mRunStartTime; }
 
 protected:
  float nonLinearity(float e);
  float uncalibrate(float e, int absId);
  float uncalibrateT(float t, int absId);
  float timeResolution(float time, float e);
  float simulateNoiseEnergy(int absId);
  float simulateNoiseTime();
 
 private:
  static constexpr short NCHANNELS = 12544; 
  static constexpr short OFFSET = 1793;     
  bool mProcessMC = true;
  bool mTrig2x2 = true;                      
  bool mTrig4x4 = false;                     
  long mRunStartTime = 0;                    
  std::unique_ptr<CalibParams> mCalibParams; 
  std::unique_ptr<TriggerMap> mTrigUtils;    
  std::array<Digit, NCHANNELS> mArrayD;
 
  ClassDefOverride(Digitizer, 4);
};
} // namespace phos
} // namespace o2
 
#endif /* ALICEO2_PHOS_DIGITIZER_H */