DCFsbistreamBase.cpp

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// DCFsbistreamBase.cpp
//////////////////////////////////////////////////////////////////////
//          (c) Copyright 2001-2002 Brown Deer Technology, LLC.
//                        All rights reserved.
//////////////////////////////////////////////////////////////////////

#ifdef USE_STD
#include <string>
using namespace std;
#else
#include <string.h>
#endif

#include "DCFsbistreamBase.h"

DCFsbistreamBase::DCFsbistreamBase( istream& is) 
  : _version(0), _revision(0), _author(0),
    _blocknum(0), _mthis0(0), _mthis1(0), _mmax(0),
    _bplen_sizeb(1), _bplen_n(1),
    _enctype(0), _encsizeb(2),
    _is(&is)
{
#ifdef STORM_DEBUG
   cout << "DCFsbistreamBase Constructor.\n";
#endif
   _descript = "\0";
   _lendescript=_descript.size();
   _finalstep =( 1 << _mmax ) - 1;
}

void DCFsbistreamBase::descr() 
{
   cout << "DCFsbistream<>::descr();\n";
   cout << "   version=" <<_version << '\n';
   cout << "   revision=" << _revision << '\n';
   cout << "   author=" << _author << '\n';
   cout << "   lendescript=" << _lendescript << '\n';
   cout << "   descript=" << _descript << '\n';
   cout << "   blocknum=" << _blocknum << '\n';
   cout << "   mthis0=" << _mthis0 << '\n';
   cout << "   mthis1=" << _mthis1 << '\n';
   cout << "   mmax=" << _mmax << '\n';
   cout << "   bplen_sizeb=" << _bplen_sizeb << '\n';
   cout << "   bplen_n=" << _bplen_n << '\n';

   cout << "   enctype=" << _enctype << '\n';
   cout << "   encsizeb=" << _encsizeb << '\n';
   cout << "   finalstep=" << _finalstep << '\n';
};

//void DCFsbistreamBase::inheader() {
void DCFsbistreamBase::open() 
{
   char c;
   char ptc[7];
   bytepack bp;

   for( int i = 0; i < 6; i++ ) { 
      (*_is) >> ptc[i]; 
#ifdef STORM_DEBUG
      cout << ptc[i];  
#endif
   }

   ptc[6] = 0;

   if ( strcmp(ptc,"DCFsb_\0") ) { 
     cout << "not a DCFsb file!\n"; 
   }

   (*_is) >> bp(0,1); _version = bp;
   (*_is) >> bp(0,1); _revision = bp;
   (*_is) >> bp(0,2); _author = bp;
   (*_is) >> bp(0,1); _lendescript = bp;

   _descript="";
   for( int i = 0; i < _lendescript; i++ ) { 
      (*_is).get(c); 
      _descript += c; 
   }

   (*_is) >> bp(0,2); _blocknum = bp;
   (*_is) >> bp(0,1); _mthis0 = bp;
   (*_is) >> bp(0,1); _mthis1 = bp;
   (*_is) >> bp(0,1); _mmax = bp;
   (*_is) >> bp(0,1); _bplen_sizeb = bp;
   (*_is) >> bp(0,1); _bplen_n = bp;

   (*_is) >> bp(0,1); _enctype = bp;
   (*_is) >> bp(0,1); _encsizeb = bp;

   _finalstep = ( 1 << _mmax ) - 1;
};

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