PhysicsToBitConverter.cc

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#include "PhysicsToBitConverter.h"

namespace l1t {
  PhysicsToBitConverter::PhysicsToBitConverter() {
    for (int m = 0; m < 2; m++) {
      for (int n = 0; n < 6; n++) {
        words32bitLink[m][n] = 0;
      }
    }
    for (int m = 0; m < 2; m++) {
      for (int n = 0; n < 192; n++) {
        bitsLink[m][n] = 0;
      }
    }
  }

  void PhysicsToBitConverter::Convert() {
    for (int iword = 0; iword < 6; iword++) {
      for (int ibit = 0; ibit < 32; ibit++) {
        //bitsLink[0].push_back(ReadBitInInt(ibit,words32bitLink[0][iword]));
        //bitsLink[1].push_back(ReadBitInInt(ibit,words32bitLink[1][iword]));
        bitsLink[0][ibit + iword * 32] = ReadBitInInt(ibit, words32bitLink[0][iword]);
        bitsLink[1][ibit + iword * 32] = ReadBitInInt(ibit, words32bitLink[1][iword]);
      }
    }
  }

  void PhysicsToBitConverter::Extract32bitwords() {
    //link,words

    for (int ilink = 0; ilink < 2; ilink++) {
      for (int iword = 0; iword < 6; iword++) {
        words32bitLink[ilink][iword] = BuildDecimalValue(iword * 32, 32, ilink);
      }
    }
  }

  int PhysicsToBitConverter::GetObject(rctDataBase::rctObjectType t, int firstindex, int secondindex) {
    int mystart = databaseobject.GetIndices(t, firstindex, secondindex);
    int mylength = databaseobject.GetLength(t);
    int mylink = databaseobject.GetLink(t);

    return BuildDecimalValue(mystart, mylength, mylink);
  }

  void PhysicsToBitConverter::SetObject(rctDataBase::rctObjectType t, int value, int firstindex, int secondindex) {
    int mystart = databaseobject.GetIndices(t, firstindex, secondindex);
    int mylength = databaseobject.GetLength(t);
    int mylink = databaseobject.GetLink(t);

    if (value > (pow(2, mylength) - 1))
      std::cout << "The value you are trying to set has more bins than expected " << std::endl;
    for (int i = 0; i < mylength; i++)
      bitsLink[mylink][i + mystart] = (value >> i) & 0x1;
  }

  int PhysicsToBitConverter::ReadBitInInt(int bit, int value) {
    std::bitset<32> foo(value);
    return foo[bit];
  }

  int PhysicsToBitConverter::BuildDecimalValue(int firstbit, int bitlength, int linkid) {
    int myvalue = 0;
    int counter = 0;

    for (int m = firstbit; m < firstbit + bitlength; m++) {
      myvalue |= (bitsLink[linkid][m] & (0x1)) << counter;
      counter++;
    }
    return myvalue;
  }
}  // namespace l1t