119 lines
3.6 KiB
C
119 lines
3.6 KiB
C
/*
|
|
* SpanDSP - a series of DSP components for telephony
|
|
*
|
|
* complex_vector_int.c - Integer complex 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 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.
|
|
*/
|
|
|
|
/*! \file */
|
|
|
|
#if defined(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
|
|
#if defined(HAVE_STDBOOL_H)
|
|
#include <stdbool.h>
|
|
#else
|
|
#include "spandsp/stdbool.h"
|
|
#endif
|
|
#include <assert.h>
|
|
|
|
#include "floating_fudge.h"
|
|
#include "mmx_sse_decs.h"
|
|
|
|
#include "spandsp/telephony.h"
|
|
#include "spandsp/logging.h"
|
|
#include "spandsp/complex.h"
|
|
#include "spandsp/vector_int.h"
|
|
#include "spandsp/complex_vector_int.h"
|
|
|
|
SPAN_DECLARE(complexi32_t) cvec_dot_prodi16(const complexi16_t x[], const complexi16_t y[], int n)
|
|
{
|
|
int i;
|
|
complexi32_t z;
|
|
|
|
z = complex_seti32(0, 0);
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
z.re += ((int32_t) x[i].re*(int32_t) y[i].re - (int32_t) x[i].im*(int32_t) y[i].im);
|
|
z.im += ((int32_t) x[i].re*(int32_t) y[i].im + (int32_t) x[i].im*(int32_t) y[i].re);
|
|
}
|
|
return z;
|
|
}
|
|
/*- End of function --------------------------------------------------------*/
|
|
|
|
SPAN_DECLARE(complexi32_t) cvec_dot_prodi32(const complexi32_t x[], const complexi32_t y[], int n)
|
|
{
|
|
int i;
|
|
complexi32_t z;
|
|
|
|
z = complex_seti32(0, 0);
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
z.re += (x[i].re*y[i].re - x[i].im*y[i].im);
|
|
z.im += (x[i].re*y[i].im + x[i].im*y[i].re);
|
|
}
|
|
return z;
|
|
}
|
|
/*- End of function --------------------------------------------------------*/
|
|
|
|
SPAN_DECLARE(complexi32_t) cvec_circular_dot_prodi16(const complexi16_t x[], const complexi16_t y[], int n, int pos)
|
|
{
|
|
complexi32_t z;
|
|
complexi32_t z1;
|
|
|
|
z = cvec_dot_prodi16(&x[pos], &y[0], n - pos);
|
|
z1 = cvec_dot_prodi16(&x[0], &y[n - pos], pos);
|
|
z = complex_addi32(&z, &z1);
|
|
return z;
|
|
}
|
|
/*- End of function --------------------------------------------------------*/
|
|
|
|
SPAN_DECLARE(void) cvec_lmsi16(const complexi16_t x[], complexi16_t y[], int n, const complexi16_t *error)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
y[i].re += (int16_t) (((int32_t) x[i].im*(int32_t) error->im + (int32_t) x[i].re*(int32_t) error->re) >> 12);
|
|
y[i].im += (int16_t) (((int32_t) x[i].re*(int32_t) error->im - (int32_t) x[i].im*(int32_t) error->re) >> 12);
|
|
}
|
|
}
|
|
/*- End of function --------------------------------------------------------*/
|
|
|
|
SPAN_DECLARE(void) cvec_circular_lmsi16(const complexi16_t x[], complexi16_t y[], int n, int pos, const complexi16_t *error)
|
|
{
|
|
cvec_lmsi16(&x[pos], &y[0], n - pos, error);
|
|
cvec_lmsi16(&x[0], &y[n - pos], pos, error);
|
|
}
|
|
/*- End of function --------------------------------------------------------*/
|
|
/*- End of file ------------------------------------------------------------*/
|