diff spandsp-0.0.6pre17/src/spandsp/complex_vector_int.h @ 4:26cd8f1ef0b1

import spandsp-0.0.6pre17
author Peter Meerwald <pmeerw@cosy.sbg.ac.at>
date Fri, 25 Jun 2010 15:50:58 +0200
parents
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spandsp-0.0.6pre17/src/spandsp/complex_vector_int.h	Fri Jun 25 15:50:58 2010 +0200
@@ -0,0 +1,131 @@
+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * complex_vector_int.h
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2003 Steve Underwood
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 2.1,
+ * 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id: complex_vector_int.h,v 1.4 2009/01/31 08:48:11 steveu Exp $
+ */
+
+#if !defined(_SPANDSP_COMPLEX_VECTOR_INT_H_)
+#define _SPANDSP_COMPLEX_VECTOR_INT_H_
+
+#if defined(__cplusplus)
+extern "C"
+{
+#endif
+
+static __inline__ void cvec_copyi(complexi_t z[], const complexi_t x[], int n)
+{
+    memcpy(z, x, n*sizeof(z[0]));
+}
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ void cvec_copyi16(complexi16_t z[], const complexi16_t x[], int n)
+{
+    memcpy(z, x, n*sizeof(z[0]));
+}
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ void cvec_copyi32(complexi32_t z[], const complexi32_t x[], int n)
+{
+    memcpy(z, x, n*sizeof(z[0]));
+}
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ void cvec_zeroi(complexi_t z[], int n)
+{
+    memset(z, 0, n*sizeof(z[0]));
+}
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ void cvec_zeroi16(complexi16_t z[], int n)
+{
+    memset(z, 0, n*sizeof(z[0]));
+}
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ void cvec_zeroi32(complexi32_t z[], int n)
+{
+    memset(z, 0, n*sizeof(z[0]));
+}
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ void cvec_seti(complexi_t z[], complexi_t *x, int n)
+{
+    int i;
+    
+    for (i = 0;  i < n;  i++)
+        z[i] = *x;
+}
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ void cvec_seti16(complexi16_t z[], complexi16_t *x, int n)
+{
+    int i;
+    
+    for (i = 0;  i < n;  i++)
+        z[i] = *x;
+}
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ void cvec_seti32(complexi32_t z[], complexi32_t *x, int n)
+{
+    int i;
+    
+    for (i = 0;  i < n;  i++)
+        z[i] = *x;
+}
+/*- End of function --------------------------------------------------------*/
+
+/*! \brief Find the dot product of two complex int16_t vectors.
+    \param x The first vector.
+    \param y The first vector.
+    \param n The number of elements in the vectors.
+    \return The dot product of the two vectors. */
+SPAN_DECLARE(complexi32_t) cvec_dot_prodi16(const complexi16_t x[], const complexi16_t y[], int n);
+
+/*! \brief Find the dot product of two complex int32_t vectors.
+    \param x The first vector.
+    \param y The first vector.
+    \param n The number of elements in the vectors.
+    \return The dot product of the two vectors. */
+SPAN_DECLARE(complexi32_t) cvec_dot_prodi32(const complexi32_t x[], const complexi32_t y[], int n);
+
+/*! \brief Find the dot product of two complex int16_t vectors, where the first is a circular buffer
+           with an offset for the starting position.
+    \param x The first vector.
+    \param y The first vector.
+    \param n The number of elements in the vectors.
+    \param pos The starting position in the x vector.
+    \return The dot product of the two vectors. */
+SPAN_DECLARE(complexi32_t) cvec_circular_dot_prodi16(const complexi16_t x[], const complexi16_t y[], int n, int pos);
+
+SPAN_DECLARE(void) cvec_lmsi16(const complexi16_t x[], complexi16_t y[], int n, const complexi16_t *error);
+
+SPAN_DECLARE(void) cvec_circular_lmsi16(const complexi16_t x[], complexi16_t y[], int n, int pos, const complexi16_t *error);
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif
+/*- End of file ------------------------------------------------------------*/

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