EcalScDetId.h

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// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: t; tab-width: 8; -*-
//
// \author Philippe Gras (CEA/Saclay). Code adapted from EEDetId.
//
#ifndef EcalDetId_EcalScDetId_h
#define EcalDetId_EcalScDetId_h

#include <iosfwd>
#include "DataFormats/DetId/interface/DetId.h"
#include "DataFormats/EcalDetId/interface/EcalSubdetector.h"
#include "FWCore/Utilities/interface/thread_safety_macros.h"

class EcalScDetId : public DetId {
public:
  EcalScDetId();

  EcalScDetId(uint32_t rawid);

  EcalScDetId(int ix, int iy, int iz);

  EcalScDetId(const DetId& id);

  EcalScDetId& operator=(const DetId& id);

  EcalSubdetector subdet() const { return EcalSubdetector(subdetId()); }

  int zside() const { return (id_ & 0x4000) ? (1) : (-1); }

  int ix() const { return (id_ >> 7) & 0x7F; }

  int iy() const { return id_ & 0x7F; }

  int iquadrant() const;

  int hashedIndex() const {
    checkHashedIndexMap();
    if (!validDetId(ix(), iy(), zside()))
      return -1;
    return xyz2HashedIndex[ix() - IX_MIN][iy() - IY_MIN][zside() > 0 ? 1 : 0];
  }

  static EcalScDetId unhashIndex(int hi) {
    checkHashedIndexMap();
    if (hi < 0 || hi >= kSizeForDenseIndexing)
      return EcalScDetId();
    return hashedIndex2DetId[hi];
  }

  uint32_t denseIndex() const { return hashedIndex(); }

  static bool validDenseIndex(uint32_t din) { return din < kSizeForDenseIndexing; }

  static bool validHashIndex(int hi) { return validDenseIndex(hi); }

  static const int SC_PER_EE_CNT = 312;

  static const int IX_MIN = 1;

  static const int IY_MIN = 1;

  static const int IX_MAX = 20;

  static const int IY_MAX = 20;

  static const int IHASHED_MIN = 0;

  static const int IHASHED_MAX = SC_PER_EE_CNT * 2 - 1;

  static bool validDetId(int ix, int iy, int iz);

private:
  static void checkHashedIndexMap();

  //fields
public:
  enum {
    kSizeForDenseIndexing = SC_PER_EE_CNT * 2
  };

private:
  static const int nEndcaps = 2;

  CMS_THREAD_SAFE static short xyz2HashedIndex[IX_MAX][IY_MAX][nEndcaps];

  CMS_THREAD_SAFE static EcalScDetId hashedIndex2DetId[kSizeForDenseIndexing];

  /*The two arrays are thread safe since they are filled safely using std::call_once and
    then only read and never modified.
   */
};

std::ostream& operator<<(std::ostream& s, const EcalScDetId& id);

#endif  //EcalDetId_EcalScDetId_h not defined