DCFmpacket_Rtmra_float_scalar.cpp

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

// specialization DCFmpacket< Rtmra<float,scalar> >

DCFmpacket< Rtmra<float,scalar> >::DCFmpacket( 
  const int sizebmax,
  const int bplen_sizeb, const int bplen_n,
  DCFencode< Rtmra<float,scalar> >& enc
  ) : DCFmpacketBase(sizebmax, bplen_sizeb, bplen_n) {

   _enc=enc;

};

void DCFmpacket< Rtmra<float,scalar> >::setencode( 
  const int sizebmax,
  const int bplen_sizeb, const int bplen_n,
  DCFencode< Rtmra<float,scalar> >& enc
  ) {

   setencode(sizebmax, bplen_sizeb, bplen_n );
   _enc=enc;

};

DCFmpacket< Rtmra<float,scalar> >& 
  DCFmpacket< Rtmra<float,scalar> >::operator()(
    Rtmra<float,scalar>& x,
    const char mcode
    ) {
     DCFmpacket< Rtmra<float,scalar> >::encode(x,mcode);
     return *this;
};

void DCFmpacket< Rtmra<float,scalar> >::encode(
    Rtmra<float,scalar>& x,
    const char mcode
    ) {

   float tmp;
   bytepack bp;

   int n;

   if (sw(mcode)) { n=((( x.mrastep() )&( (1<<x.mmax()) -1 ) )>> m(mcode)); } 
   else { n=0; }

   clear();
   set(mcode,n);

   if (sw(mcode)) { tmp=x.wav(m(mcode)); } 
   else { tmp=x.scal(m(mcode)); }

   if (fabs(tmp)>=_enc.quantcoef()) {
#ifdef STORM_DEBUG
   cout << "DCFmpacket.encode(): put() : mcode, n, tmp = "
        << int( (unsigned char)(mcode) ) << ' ' << n << ' ' << tmp << '\n';
#endif
      put( bp(tmp,_enc.bplen_coef()) );
   }

};


void DCFmpacket< Rtmra<float,scalar> >::replace( Rtmra<float,scalar>& x ) {

   int j;
   float tmp;
   bytepack bp;

   if (empty()) { tmp=0; }
   else {
      bp(0,_enc.bplen_coef());
      for(j=0;j<bp.size();j++) { bp[j]=_ptmpacket[j]; }
      tmp=float(bp);
   }

#ifdef STORM_DEBUG
   cout << "DCFmpacket.replace(): sw m coef "
        << sw() << ' ' << m() << ' ' << tmp << '\n';
#endif

   if (sw()) { x.wav(m(),tmp); } 
   else { x.scal(m(),tmp); }

};

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