/* 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 __FUNCTABLE_H__

#define __FUNCTABLE_H__

typedef void FunctableFunc (double *fx, double *dfx, double x, void *closure);

typedef struct _Functable Functable;

struct _Functable {

  int length;

  double offset;

  double multiplier;

  double inv_multiplier;

  double *fx;

  double *dfx;

};

#ifdef __SYMBIAN32__

IMPORT_C

#endif

Functable *functable_new (void);

void functable_setup (Functable *t);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void functable_free (Functable *t);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void functable_set_length (Functable *t, int length);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void functable_set_offset (Functable *t, double offset);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void functable_set_multiplier (Functable *t, double multiplier);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void functable_calculate (Functable *t, FunctableFunc func, void *closure);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void functable_calculate_multiply (Functable *t, FunctableFunc func, void *closure);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

double functable_evaluate (Functable *t,double x);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

double functable_fir(Functable *t,double x0,int n,double *data,int len);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void functable_fir2(Functable *t,double *r0, double *r1, double x0,

        int n,double *data,int len);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void functable_func_sinc(double *fx, double *dfx, double x, void *closure);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void functable_func_boxcar(double *fx, double *dfx, double x, void *closure);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void functable_func_hanning(double *fx, double *dfx, double x, void *closure);

#endif /* __PRIVATE_H__ */