1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
/*
* 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"
#include <stdio.h>
void cconva(floatComplex *in1, int size1, floatComplex *in2,int size2, floatComplex *out){
int m1,i;
floatComplex *in1b, *in2b, *result;
m1=(int)floor( log(size1+size2-1.0) / log(2.0) + 1 );
m1=(int)pow(2.0, m1);
in1b=(floatComplex *)malloc((unsigned int)(2*m1)*sizeof(float));
for(i=0;i<m1;i++){
if (i<size1) in1b[i]=in1[i];
else in1b[i]=FloatComplex(0,0);
}
in2b=(floatComplex *)malloc((unsigned int)(2*m1)*sizeof(float));
for(i=0;i<m1;i++){
if (i<size2) in2b[i]=in2[i];
else in2b[i]=FloatComplex(0,0);
}
cfftma(in1b,m1,1,in1b);
cfftma(in2b,m1,1,in2b);
result=(floatComplex *)malloc((unsigned int)(2*m1)*sizeof(float));
cmula(in1b,in2b,m1,result);
cifftma(result,m1,1,result);
for (i=0;i<size1+size2-1;i++){
out[i]=result[i];
}
free(in1b);
free(in2b);
free(result);
}
|
