/* ======================================================================== *\
!
! *
! * This file is part of MARS, the MAGIC Analysis and Reconstruction
! * Software. It is distributed to you in the hope that it can be a useful
! * and timesaving tool in analysing Data of imaging Cerenkov telescopes.
! * It is distributed WITHOUT ANY WARRANTY.
! *
! * Permission to use, copy, modify and distribute this software and its
! * documentation for any purpose is hereby granted without fee,
! * provided that the above copyright notice appear in all copies and
! * that both that copyright notice and this permission notice appear
! * in supporting documentation. It is provided "as is" without express
! * or implied warranty.
! *
!
!
!   Author(s): Markus Gaug, 04/2004 <mailto:markus@ifae.es>
!              Thomas Bretz, 01/2004 
!
!   Copyright: MAGIC Software Development, 2000-2004
!
!
\* ======================================================================== */

//////////////////////////////////////////////////////////////////////////////
//
//  MExtractFixedWindow
//
//  Extracts the signal from a fixed window
//
//////////////////////////////////////////////////////////////////////////////
#include "MExtractFixedWindow.h"
#include "MExtractor.h"

#include <fstream>


ClassImp(MExtractFixedWindow);

using namespace std;

const Byte_t MExtractFixedWindow::fgHiGainFirst =  3;
const Byte_t MExtractFixedWindow::fgHiGainLast  =  14;
const Byte_t MExtractFixedWindow::fgLoGainFirst =  3;
const Byte_t MExtractFixedWindow::fgLoGainLast  =  14;
// --------------------------------------------------------------------------
//
// Default constructor. 
//
MExtractFixedWindow::MExtractFixedWindow(const char *name, const char *title)
{
  fName  = name  ? name  : "MExtractFixedWindow";
  fTitle = title ? title : "Signal Extractor for a fixed FADC window";


  SetRange(fgHiGainFirst, fgHiGainLast, fgLoGainFirst, fgLoGainLast);

  fNumHiGainSamples = (Float_t)(fHiGainLast-fHiGainFirst) + 1.;
  fNumLoGainSamples = (Float_t)(fLoGainLast-fLoGainFirst) + 1.;

  fSqrtHiGainSamples = TMath::Sqrt(fNumHiGainSamples);
  fSqrtLoGainSamples = TMath::Sqrt(fNumLoGainSamples);
}


void MExtractFixedWindow::FindSignalHiGain(Byte_t *ptr, Int_t &sum, Byte_t &sat) const
{

  Byte_t *end = ptr + fHiGainLast - fHiGainFirst + 1;
  
  sum = 0;
  sat = 0;
  
  while (ptr<end)
    {
      sum += *ptr;
      
      if (*ptr++ >= fSaturationLimit)
        sat++;
    }
}

void MExtractFixedWindow::FindSignalLoGain(Byte_t *ptr, Int_t &sum, Byte_t &sat) const
{

  Byte_t *end = ptr + fLoGainLast - fLoGainFirst + 1;
  
  sum = 0;
  sat = 0;
  
  while (ptr<end)
    {
      sum += *ptr;
      
      if (*ptr++ >= fSaturationLimit)
        sat++;
    }
}

// --------------------------------------------------------------------------
//
// Implementation of SavePrimitive. Used to write the call to a constructor
// to a macro. In the original root implementation it is used to write
// gui elements to a macro-file.
//
void MExtractFixedWindow::StreamPrimitive(ofstream &out) const
{

  out << "   " << ClassName() << " " << GetUniqueName() << "(\"";
  out << "\"" << fName << "\", \"" << fTitle << "\");" << endl;
  
  if (fSaturationLimit!=fgSaturationLimit)
    {
      out << "   " << GetUniqueName() << ".SetSaturationLimit(";
      out << (int)fSaturationLimit << ");" << endl;
    }
  
  const Bool_t arg4 = fNumLoGainSamples+fLoGainFirst-1 != fgLoGainLast;
  const Bool_t arg3 = arg4 || fLoGainFirst != fgLoGainFirst;
  const Bool_t arg2 = arg3 || fNumHiGainSamples+fHiGainFirst-1 != fgHiGainLast;
  const Bool_t arg1 = arg2 || fHiGainFirst != fgHiGainFirst;
  
  if (!arg1)
    return;
  
  out << "   " << GetUniqueName() << ".SetRange(";
  out << (int)fLoGainFirst;
  if (arg2)
    {
      out << ", " << (int)(fNumHiGainSamples+fHiGainFirst-1);
      if (arg3)
        {
          out << ", " << (int)fLoGainFirst;
          if (arg4)
            out << ", " << (int)(fNumLoGainSamples+fLoGainFirst-1);
        }
    }
  out << ");" << endl;
}