CTFCoder.cxx

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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.
 
 
#include "EMCALReconstruction/CTFCoder.h"
#include "CommonUtils/StringUtils.h"
#include <TTree.h>
 
using namespace o2::emcal;
 
// Register encoded data in the tree (Fill is not called, will be done by caller)
void CTFCoder::appendToTree(TTree& tree, CTF& ec)
{
  ec.appendToTree(tree, mDet.getName());
}
 
// extract and decode data from the tree
void CTFCoder::readFromTree(TTree& tree, int entry, std::vector<TriggerRecord>& trigVec, std::vector<Cell>& cellVec)
{
  assert(entry >= 0 && entry < tree.GetEntries());
  CTF ec;
  ec.readFromTree(tree, mDet.getName(), entry);
  decode(ec, trigVec, cellVec);
}
 
void CTFCoder::createCoders(const std::vector<char>& bufVec, o2::ctf::CTFCoderBase::OpType op)
{
  const auto ctf = CTF::getImage(bufVec.data());
  // just to get types
  int16_t bcInc = 0;
  int32_t orbitInc = 0;
  uint16_t entries = 0, cellTime = 0, energy = 0, tower = 0, trigger = 0;
  uint8_t status = 0;
#define MAKECODER(part, slot) createCoder(op, std::get<rans::RenormedDenseHistogram<decltype(part)>>(ctf.getDictionary<decltype(part)>(slot, mANSVersion)), int(slot))
  // clang-format off
  MAKECODER(bcInc,      CTF::BLC_bcIncTrig);
  MAKECODER(orbitInc,   CTF::BLC_orbitIncTrig);
  MAKECODER(entries,    CTF::BLC_entriesTrig);
  MAKECODER(tower,      CTF::BLC_towerID);
  MAKECODER(cellTime,   CTF::BLC_time);
  MAKECODER(energy,     CTF::BLC_energy);
  MAKECODER(status,     CTF::BLC_status);
  // extra slot was added in the end
  MAKECODER(trigger,    CTF::BLC_trigger);
  // clang-format on
}
 
void CTFCoder::assignDictVersion(o2::ctf::CTFDictHeader& h) const
{
  if (mExtHeader.isValidDictTimeStamp()) {
    h = mExtHeader;
  } else {
    h.majorVersion = 1;
    h.minorVersion = 2;
  }
}