diff spandsp-0.0.3/spandsp-0.0.3/src/vector_float.c @ 5:f762bf195c4b

import spandsp-0.0.3
author Peter Meerwald <pmeerw@cosy.sbg.ac.at>
date Fri, 25 Jun 2010 16:00:21 +0200
parents
children
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spandsp-0.0.3/spandsp-0.0.3/src/vector_float.c	Fri Jun 25 16:00:21 2010 +0200
@@ -0,0 +1,317 @@
+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * vector_float.c - Floating vector arithmetic routines.
+ *
+ * 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_float.c,v 1.5 2006/11/19 14:07:26 steveu Exp $
+ */
+
+/*! \file */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <inttypes.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#if defined(HAVE_TGMATH_H)
+#include <tgmath.h>
+#endif
+#if defined(HAVE_MATH_H)
+#include <math.h>
+#endif
+#include <assert.h>
+
+#include "spandsp/telephony.h"
+#include "spandsp/logging.h"
+#include "spandsp/vector_float.h"
+
+void vec_copyf(float z[], const float x[], int n)
+{
+    int i;
+    
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i];
+}
+/*- End of function --------------------------------------------------------*/
+
+void vec_copy(double z[], const double x[], int n)
+{
+    int i;
+    
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i];
+}
+/*- End of function --------------------------------------------------------*/
+
+#if defined(HAVE_LONG_DOUBLE)
+void vec_copyl(long double z[], const long double x[], int n)
+{
+    int i;
+    
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i];
+}
+/*- End of function --------------------------------------------------------*/
+#endif
+
+void vec_zerof(float z[], int n)
+{
+    int i;
+    
+    for (i = 0;  i < n;  i++)
+        z[i] = 0.0f;
+}
+/*- End of function --------------------------------------------------------*/
+
+void vec_zero(double z[], int n)
+{
+    int i;
+    
+    for (i = 0;  i < n;  i++)
+        z[i] = 0.0;
+}
+/*- End of function --------------------------------------------------------*/
+
+#if defined(HAVE_LONG_DOUBLE)
+void vec_zerol(long double z[], int n)
+{
+    int i;
+    
+    for (i = 0;  i < n;  i++)
+        z[i] = 0.0;
+}
+/*- End of function --------------------------------------------------------*/
+#endif
+
+void vec_setf(float z[], float x, int n)
+{
+    int i;
+    
+    for (i = 0;  i < n;  i++)
+        z[i] = x;
+}
+/*- End of function --------------------------------------------------------*/
+
+void vec_set(double z[], double x, int n)
+{
+    int i;
+    
+    for (i = 0;  i < n;  i++)
+        z[i] = x;
+}
+/*- End of function --------------------------------------------------------*/
+
+#if defined(HAVE_LONG_DOUBLE)
+void vec_setl(long double z[], long double x, int n)
+{
+    int i;
+    
+    for (i = 0;  i < n;  i++)
+        z[i] = x;
+}
+/*- End of function --------------------------------------------------------*/
+#endif
+
+void vec_addf(float z[], const float x[], const float y[], int n)
+{
+    int i;
+
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i] + y[i];
+}
+/*- End of function --------------------------------------------------------*/
+
+void vec_add(double z[], const double x[], const double y[], int n)
+{
+    int i;
+
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i] + y[i];
+}
+/*- End of function --------------------------------------------------------*/
+
+void vec_addl(long double z[], const long double x[], const long double y[], int n)
+{
+    int i;
+
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i] + y[i];
+}
+/*- End of function --------------------------------------------------------*/
+
+void vec_scaled_addf(float z[], const float x[], float x_scale, const float y[], float y_scale, int n)
+{
+    int i;
+
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i]*x_scale + y[i]*y_scale;
+}
+/*- End of function --------------------------------------------------------*/
+
+void vec_scaled_add(double z[], const double x[], double x_scale, const double y[], double y_scale, int n)
+{
+    int i;
+
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i]*x_scale + y[i]*y_scale;
+}
+/*- End of function --------------------------------------------------------*/
+
+#if defined(HAVE_LONG_DOUBLE)
+void vec_scaled_addl(long double z[], const long double x[], long double x_scale, const long double y[], long double y_scale, int n)
+{
+    int i;
+
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i]*x_scale + y[i]*y_scale;
+}
+/*- End of function --------------------------------------------------------*/
+#endif
+
+void vec_subf(float z[], const float x[], const float y[], int n)
+{
+    int i;
+
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i] - y[i];
+}
+/*- End of function --------------------------------------------------------*/
+
+void vec_sub(double z[], const double x[], const double y[], int n)
+{
+    int i;
+
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i] - y[i];
+}
+/*- End of function --------------------------------------------------------*/
+
+#if defined(HAVE_LONG_DOUBLE)
+void vec_subl(long double z[], const long double x[], const long double y[], int n)
+{
+    int i;
+
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i] - y[i];
+}
+/*- End of function --------------------------------------------------------*/
+#endif
+
+void vec_scaled_subf(float z[], const float x[], float x_scale, const float y[], float y_scale, int n)
+{
+    int i;
+
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i]*x_scale - y[i]*y_scale;
+}
+/*- End of function --------------------------------------------------------*/
+
+void vec_scaled_sub(double z[], const double x[], double x_scale, const double y[], double y_scale, int n)
+{
+    int i;
+
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i]*x_scale - y[i]*y_scale;
+}
+/*- End of function --------------------------------------------------------*/
+
+#if defined(HAVE_LONG_DOUBLE)
+void vec_scaled_subl(long double z[], const long double x[], long double x_scale, const long double y[], long double y_scale, int n)
+{
+    int i;
+
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i]*x_scale - y[i]*y_scale;
+}
+/*- End of function --------------------------------------------------------*/
+#endif
+
+void vec_scalar_mulf(float z[], const float x[], float y, int n)
+{
+    int i;
+
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i]*y;
+}
+/*- End of function --------------------------------------------------------*/
+
+void vec_scalar_mul(double z[], const double x[], double y, int n)
+{
+    int i;
+
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i]*y;
+}
+/*- End of function --------------------------------------------------------*/
+
+#if defined(HAVE_LONG_DOUBLE)
+void vec_scalar_mull(long double z[], const long double x[], long double y, int n)
+{
+    int i;
+
+    for (i = 0;  i < n;  i++)
+        z[i] = x[i]*y;
+}
+/*- End of function --------------------------------------------------------*/
+#endif
+
+float vec_dot_prodf(const float x[], const float y[], int n)
+{
+    int i;
+    float z;
+
+    z = 0.0f;
+    for (i = 0;  i < n;  i++)
+        z += x[i]*y[i];
+    return z;
+}
+/*- End of function --------------------------------------------------------*/
+
+double vec_dot_prod(const double x[], const double y[], int n)
+{
+    int i;
+    double z;
+
+    z = 0.0;
+    for (i = 0;  i < n;  i++)
+        z += x[i]*y[i];
+    return z;
+}
+/*- End of function --------------------------------------------------------*/
+
+#if defined(HAVE_LONG_DOUBLE)
+long double vec_dot_prodl(const long double x[], const long double y[], int n)
+{
+    int i;
+    long double z;
+
+    z = 0.0;
+    for (i = 0;  i < n;  i++)
+        z += x[i]*y[i];
+    return z;
+}
+/*- End of function --------------------------------------------------------*/
+#endif
+/*- End of file ------------------------------------------------------------*/

Repositories maintained by Peter Meerwald, pmeerw@pmeerw.net.