DDASHitUnpacker.h

/* DDASHit class definition header file */

#ifndef DAQ_DDAS_DDASHITUNPACKER_H
#define DAQ_DDAS_DDASHITUNPACKER_H

#include "DDASHit.h"

#include <vector>
#include <cstdint>
#include <tuple>


namespace DAQ {
  namespace DDAS {

    class DDASHitUnpacker {
      public:
        std::tuple<DDASHit, const uint32_t*> unpack(const uint32_t* beg, const uint32_t* sentinel); 
        const uint32_t* unpack(const uint32_t* beg, const uint32_t* sentinel, DDASHit& hit); 

      protected:

        const uint32_t* parseBodySize(const uint32_t* beg, const uint32_t* sentinel);
        const uint32_t* parseModuleInfo(DDASHit& hit, const uint32_t* beg);
        const uint32_t* parseHeaderWord0(DDASHit& hit, const uint32_t* beg);
        const uint32_t* parseHeaderWords1And2(DDASHit& hit, const uint32_t* beg);
        const uint32_t* parseHeaderWord3(DDASHit& hit, const uint32_t* beg);
        const uint32_t* parseTraceData(DDASHit& hit, const uint32_t* beg);

        std::tuple<double, uint32_t, uint32_t, uint32_t> 
          parseAndComputeCFD(uint32_t ModMSPS, uint32_t data);
        double parseAndComputeCFD(DDASHit& hit, uint32_t data);


        void SetTime(DDASHit& hit);


        void SetEnergySums(DDASHit& hit, uint32_t data);

        void SetQDCSums(DDASHit& hit, uint32_t data);

        uint64_t computeCoarseTime(uint32_t adcFrequency, uint32_t timelow, uint32_t timehigh);

        const uint32_t* extractEnergySums(const uint32_t* data, DDASHit& hit);
        const uint32_t* extractQDC(const uint32_t* data, DDASHit& hit);
        const uint32_t* extractExternalTimestamp(const uint32_t* data, DDASHit& hit);

    };

  } // end DDAS namespace
} // end DAQ namespace
#endif