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/*
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) 2008 - INRIA - Arnaud TORSET
*
* This file must be used under the terms of the CeCILL.
* This source file is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at
* http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
*
*/
#include "conv.h"
void zconva(doubleComplex *in1, int size1, doubleComplex *in2,int size2, doubleComplex *out){
int m1,i;
doubleComplex *in1b, *in2b, *result;
m1=(int) floor(log(size1+size2-1.0) / log(2.0) + 1.0);
m1=(int) pow(2.0, m1);
in1b=(doubleComplex *)malloc(2*(unsigned int)m1*sizeof(double));
for(i=0;i<m1;i++){
if (i<size1) in1b[i]=in1[i];
else in1b[i]=DoubleComplex(0,0);
}
in2b=(doubleComplex *)malloc(2*(unsigned int)m1*sizeof(double));
for(i=0;i<m1;i++){
if (i<size2) in2b[i]=in2[i];
else in2b[i]=DoubleComplex(0,0);
}
zfftma(in1b,m1,1,in1b);
zfftma(in2b,m1,1,in2b);
result=(doubleComplex *)malloc(2*(unsigned int)m1*sizeof(double));
zmula(in1b,in2b,m1,result);
zifftma(result,m1,1,result);
for (i=0;i<size1+size2-1;i++){
out[i]=result[i];
}
free(result);
free(in2b);
free(in1b);
}
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