SubByteTwoBitCorrection.h

//-*-C++-*-
/***************************************************************************
 *
 *   Copyright (C) 2003 by Willem van Straten
 *   Licensed under the Academic Free License version 2.1
 *
 ***************************************************************************/
 
// dspsr/Kernel/Classes/dsp/SubByteTwoBitCorrection.h
 
#ifndef __SubByteTwoBitCorrection_h
#define __SubByteTwoBitCorrection_h
 
#include "dsp/TwoBitCorrection.h"
#include "dsp/TwoBitMask.h"
#include "dsp/TwoBit1or2.h"
 
namespace dsp {
  
 
  class SubByteTwoBitCorrection: public TwoBitCorrection {
 
  public:
 
    SubByteTwoBitCorrection (const char* name = "SubByteTwoBitCorrection");
 
    ~SubByteTwoBitCorrection ();
 
    virtual unsigned get_ndig_per_byte () const;
 
    virtual unsigned get_input_offset (unsigned idig) const;
 
    virtual unsigned get_input_incr () const;
 
    virtual unsigned get_shift (unsigned idig, unsigned isamp) const;
 
    unsigned get_output_ipol (unsigned idig) const;
    unsigned get_output_ichan (unsigned idig) const;
    unsigned get_output_offset (unsigned idig) const;
    unsigned get_output_incr () const;
 
  protected:
 
    void dig_unpack (const unsigned char* input_data, 
                     float* output_data,
                     uint64_t ndat,
                     unsigned long* hist,
                     unsigned* weights = 0,
                     unsigned nweights = 0);
 
    TwoBitLookup* get_unpacker ();
 
    TwoBit< 1, ShiftMask<1> > unpack1;
 
    TwoBit< 2, ShiftMask<2> > unpack2;
  };
  
}
 
#endif