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/*
VASP modular - vector assembling signal processor / objects for Max/MSP and PD
Copyright (c) 2002 Thomas Grill (xovo@gmx.net)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
*/
#include "main.h"
#include "ops_trnsc.h"
#include "opdefs.h"
#include "util.h"
#include <math.h>
// --------------------------------------------------------------
template<class T> V f_rpow(T &v,T a,T b) { v = pow(fabs(a),b)*sgn(a); }
BL VecOp::d_pow(OpParam &p) { d__rbin(f_rpow<S>,p); }
template<class T> V f_crpow(T &rv,T &iv,T ra,T ia,T rb,T)
{
register const R _abs = sqrt(sqabs(ra,ia));
if(_abs) {
register const R _p = pow(_abs,rb)/_abs;
rv = _p*ra,iv = _p*ia;
}
else
rv = iv = 0;
}
BL VecOp::d_rpow(OpParam &p) { d__cbin(f_crpow<S>,p); }
Vasp *VaspOp::m_rpow(OpParam &p,Vasp &src,const Argument &arg,Vasp *dst)
{
Vasp *ret = NULL;
CVecBlock *vecs = GetCVecs(p.opname,src,dst);
if(vecs) {
if(arg.IsList() && arg.GetList().Count() >= 1 && flext::CanbeFloat(arg.GetList()[0]))
p.cbin.rarg = flext::GetAFloat(arg.GetList()[0]);
else {
post("%s - argument is invalid -> set to 1",p.opname);
p.cbin.rarg = 1;
}
p.cbin.iarg = 0; // not used anyway
ret = DoOp(vecs,VecOp::d_rpow,p);
delete vecs;
}
return ret;
}
VASP_BINARY("vasp.pow",pow,true,VASP_ARG_R(1),"Real power function")
VASP_ANYOP("vasp.rpow",rpow,0,true,VASP_ARG_R(1),"Power function acting on complex radius")
// --------------------------------------------------------------
template<class T> V f_rsqrt(T &v,T a) { v = sqrt(fabs(a)); }
template<class T> V f_rssqrt(T &v,T a) { v = sqrt(fabs(a))*sgn(a); }
BL VecOp::d_sqrt(OpParam &p) { d__run(f_rsqrt<S>,p); }
BL VecOp::d_ssqrt(OpParam &p) { d__run(f_rssqrt<S>,p); }
VASP_UNARY("vasp.sqrt",sqrt,true,"Square root")
VASP_UNARY("vasp.ssqrt",ssqrt,true,"Square root preserving the sign")
// --------------------------------------------------------------
template<class T> V f_rexp(T &v,T a) { v = exp(a); }
template<class T> V f_rlog(T &v,T a) { v = log(a); } // \todo detect NANs
BL VecOp::d_exp(OpParam &p) { d__run(f_rexp<S>,p); }
BL VecOp::d_log(OpParam &p) { d__run(f_rlog<S>,p); }
VASP_UNARY("vasp.exp",exp,true,"Exponential function")
VASP_UNARY("vasp.log",log,true,"Natural logarithm")
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