CbmStsDigi.cxx

Go to the documentation of this file.

/** CbmStsDigi.cxx
 **@author V.Friese <v.friese@gsi.de>
 **@since 28.08.2006
 **@version 2.0
 **/
 
#include "CbmStsDigi.h"
 
#include "FairLogger.h"
 
// -----   Bit fields for charge and time stamp   --------------------------
const Int_t CbmStsDigi::fgkCharBits = 12;   // in data0
const Int_t CbmStsDigi::fgkTimeBits = 14;   // in data1
const Int_t CbmStsDigi::fgkAddrBits =
    CbmStsDigi::fgkStatBits + CbmStsDigi::fgkSectBits + CbmStsDigi::fgkSideBits + CbmStsDigi::fgkChanBits;
// -------------------------------------------------------------------------
 
// -----   Bit shift for charge and time stamp   ---------------------------
const Int_t CbmStsDigi::fgkCharShift = CbmStsDigi::fgkAddrBits;
const Int_t CbmStsDigi::fgkTimeShift = CbmStsDigi::fgkCharShift + CbmStsDigi::fgkCharBits;
// -------------------------------------------------------------------------
 
// -----   Bit masks for charge and time stamp   ---------------------------
const Long64_t CbmStsDigi::fgkAddrMask = (1 << CbmStsDigi::fgkAddrBits) - 1;
const Long64_t CbmStsDigi::fgkCharMask = (1 << CbmStsDigi::fgkCharBits) - 1;
const Long64_t CbmStsDigi::fgkTimeMask = (1 << CbmStsDigi::fgkTimeBits) - 1;
// -------------------------------------------------------------------------
 
// -----   Default constructor   -------------------------------------------
CbmStsDigi::CbmStsDigi()
    : FairMultiLinkedData()
    , CbmStsDetectorId()
    , fData(0)
{}
// -------------------------------------------------------------------------
 
// -----   Standard constructor   ------------------------------------------
// CbmStsDigi::CbmStsDigi(Int_t station, Int_t sector, Int_t side,
//             Int_t channel, Int_t adc, Int_t time)
//   : FairMultiLinkedData(),
//     CbmStsDetectorId(),
//     fData(0)
// {
//   AddIndex(index);
//   fData = ( (DetectorId(station, sector, side, channel) >> 4) & fgkAddrMask )
//     | ( (adc  & fgkCharMask) << fgkCharShift )
//     | ( (time & fgkTimeMask) << fgkTimeShift ) ;
//
// }
// -------------------------------------------------------------------------
CbmStsDigi::CbmStsDigi(Int_t station, Int_t sector, Int_t side, Int_t channel, Int_t adc, Int_t time)
    : FairMultiLinkedData()
    , CbmStsDetectorId()
    , fData(0)
{
    //   AddIndex(index,adc);
 
    // Check for ADC range
    if (adc > GetMaxAdc()) {
        LOG(warn) << "ADC " << adc << " exceeds ADC range " << GetMaxAdc();
        return;
    }
 
    fData = ((DetectorId(station, sector, side, channel) >> 4) & fgkAddrMask) | ((adc & fgkCharMask) << fgkCharShift)
            | ((time & fgkTimeMask) << fgkTimeShift);
}
 
// -----   Destructor   ----------------------------------------------------
CbmStsDigi::~CbmStsDigi() {}
// -------------------------------------------------------------------------
 
// -----   Add charge   ----------------------------------------------------
void CbmStsDigi::AddAdc(Int_t adc)
{
    Int_t maxAdc = (1 << fgkCharBits) - 1;
    Int_t newAdc = GetAdc() + adc;
    if (newAdc > maxAdc)
        newAdc = maxAdc;
    SetAdc(newAdc);
}
// -------------------------------------------------------------------------
 
// -----   Set new charge   ------------------------------------------------
void CbmStsDigi::SetAdc(Int_t adc)
{
 
    // First set old charge to zero
    fData = fData & ~(fgkCharMask << fgkCharShift);
 
    // Check for ADC range
    if (adc > GetMaxAdc()) {
        LOG(warn) << "ADC " << adc << " exceeds ADC range " << GetMaxAdc();
        return;
    }
 
    // Now set new charge
    fData = fData | ((adc & fgkCharMask) << fgkCharShift);
}
// -------------------------------------------------------------------------