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/* Resampling library
* Copyright (C) <2001> David Schleef <ds@schleef.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __PRIVATE_H__
#define __PRIVATE_H__
#include "resample.h"
void gst_resample_nearest_s16(gst_resample_t *r);
void gst_resample_bilinear_s16(gst_resample_t *r);
void gst_resample_sinc_s16(gst_resample_t *r);
void gst_resample_sinc_slow_s16(gst_resample_t *r);
void gst_resample_sinc_ft_s16(gst_resample_t * r);
void gst_resample_nearest_float(gst_resample_t *r);
void gst_resample_bilinear_float(gst_resample_t *r);
void gst_resample_sinc_float(gst_resample_t *r);
void gst_resample_sinc_slow_float(gst_resample_t *r);
void gst_resample_sinc_ft_float(gst_resample_t * r);
typedef struct functable_s functable_t;
struct functable_s {
double start;
double offset;
int len;
double invoffset;
double scale;
double scale2;
double (*func_x)(void *,double x);
double (*func_dx)(void *,double x);
double (*func2_x)(void *,double x);
double (*func2_dx)(void *,double x);
double *fx;
double *fdx;
void *priv;
};
void functable_init(functable_t *t);
double functable_eval(functable_t *t,double x);
double functable_fir(functable_t *t,double x0,int n,double *data,int len);
void functable_fir2(functable_t *t,double *r0, double *r1, double x0,
int n,double *data,int len);
double functable_sinc(void *p, double x);
double functable_dsinc(void *p, double x);
double functable_window_std(void *p, double x);
double functable_window_dstd(void *p, double x);
double functable_window_boxcar(void *p, double x);
double functable_window_dboxcar(void *p, double x);
/* math lib stuff */
void conv_double_short_table(double *dest, short *src, int n);
void conv_double_short_unroll(double *dest, short *src, int n);
void conv_double_short_ref(double *dest, short *src, int n);
#ifdef HAVE_CPU_PPC
void conv_double_short_altivec(double *dest, short *src, int n);
#endif
void conv_short_double_ref(short *dest, double *src, int n);
#ifdef HAVE_CPU_PPC
void conv_short_double_ppcasm(short *dest, double *src, int n);
#endif
#ifdef HAVE_CPU_PPC
# define conv_double_short conv_double_short_table
# if 0
/* disabled as in .c */
# define conv_short_double conv_short_double_ppcasm
# else
# define conv_short_double conv_short_double_ref
# endif
#else
# define conv_double_short conv_double_short_ref
# define conv_short_double conv_short_double_ref
#endif
#define conv_double_float conv_double_float_ref
#define conv_float_double conv_float_double_ref
void conv_double_short_dstr(double *dest, short *src, int n, int dstr);
void conv_short_double_sstr(short *dest, double *src, int n, int dstr);
void conv_double_float_ref(double *dest, float *src, int n);
void conv_float_double_ref(float *dest, double *src, int n);
void conv_double_float_dstr(double *dest, float *src, int n, int dstr);
void conv_float_double_sstr(float *dest, double *src, int n, int sstr);
#endif /* __PRIVATE_H__ */
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