inital checkin of spandsp from http://www.soft-switch.org/downloads/snapshots/spandsp/spandsp-20080829.tar.gz

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@9425 d0543943-73ff-0310-b7d9-9358b9ac24b2

libs/spandsp/tests/vector_int_tests.c

@@ -0,0 +1,122 @@
+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * vector_int_tests.c
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2006 Steve Underwood
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id: vector_int_tests.c,v 1.8 2008/05/13 13:17:27 steveu Exp $
+ */
+
+#if defined(HAVE_CONFIG_H)
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <string.h>
+#include <audiofile.h>
+
+#include "spandsp.h"
+
+static int32_t vec_dot_prodi16_dumb(const int16_t x[], const int16_t y[], int n)
+{
+    int32_t z;
+    int i;
+
+    z = 0;
+    for (i = 0;  i < n;  i++)
+        z += x[i]*y[i];
+    return  z;
+}
+/*- End of function --------------------------------------------------------*/
+
+static int32_t vec_min_maxi16_dumb(const int16_t x[], int n, int16_t out[])
+{
+    int i;
+    int16_t min;
+    int16_t max;
+    int16_t temp;
+    int32_t z;
+    
+    max = INT16_MIN;
+    min = INT16_MAX;
+    for (i = 0;  i < n;  i++)
+    {
+        temp = x[i];
+        if (temp > max)
+            max = temp;
+        /*endif*/
+        if (temp < min)
+            min = temp;
+        /*endif*/
+    }
+    /*endfor*/
+    out[0] = max;
+    out[1] = min;
+    z = abs(min);
+    if (z > max)
+        return z;
+    return max;
+}
+/*- End of function --------------------------------------------------------*/
+    
+int main(int argc, char *argv[])
+{
+    int i;
+    int32_t za;
+    int32_t zb;
+    int16_t x[99];
+    int16_t y[99];
+    int16_t outa[2];
+    int16_t outb[2];
+
+    for (i = 0;  i < 99;  i++)
+    {
+        x[i] = rand();
+        y[i] = rand();
+    }
+
+    za = vec_dot_prodi16(x, y, 99);
+    zb = vec_dot_prodi16_dumb(x, y, 99);
+    if (za != zb)
+    {
+        printf("Tests failed\n");
+        exit(2);
+    }
+
+    x[42] = -32768;
+    za = vec_min_maxi16_dumb(x, 99, outa);
+    zb = vec_min_maxi16(x, 99, outb);
+    if (za != zb
+        ||
+        outa[0] != outb[0]
+        ||
+        outa[1] != outb[1])
+    {
+        printf("Tests failed\n");
+        exit(2);
+    }
+    printf("Tests passed.\n");
+    return 0;
+}
+/*- End of function --------------------------------------------------------*/
+/*- End of file ------------------------------------------------------------*/