From db464f35f5a10b58d9ed1085e0b462689adee583 Mon Sep 17 00:00:00 2001
From: Siddhesh Wani
Date: Mon, 25 May 2015 14:46:31 +0530
Subject: Original Version

---
 src/c/signalProcessing/conv/zconva.c | 51 ++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 src/c/signalProcessing/conv/zconva.c

(limited to 'src/c/signalProcessing/conv/zconva.c')

diff --git a/src/c/signalProcessing/conv/zconva.c b/src/c/signalProcessing/conv/zconva.c
new file mode 100644
index 00000000..7f773fac
--- /dev/null
+++ b/src/c/signalProcessing/conv/zconva.c
@@ -0,0 +1,51 @@
+
+/*
+ *  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);
+}
-- 
cgit