pdsfir.h

/*
 * pdsfir.h
 * 
 * Copyright 2011 Fernando Pujaico Rivera <fernando.pujaico.rivera@gmail.com>
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * 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., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 * 
 */

#ifndef __PDSFIR_H__
#define __PDSFIR_H__


#ifdef __cplusplus
extern "C" {
#endif 

#include <pds/pdsdfglobal.h>
#include <pds/pdsvector.h>

#include <stdio.h>

#ifndef TRUE
        #define TRUE 1
#endif

#ifndef FALSE
        #define FALSE 0
#endif

typedef struct 
{
        PdsVector *h;
        PdsDfNatural N;
        PdsVector *X;
}PdsFir;


PdsFir *pds_fir_new(const PdsVector *h);


PdsFir *pds_fir_get_new_lowpass(PdsDfNatural Order,PdsDfReal Wn,const PdsVector *Window);


PdsFir *pds_fir_get_new_highpass(PdsDfNatural Order,PdsDfReal Wn,const PdsVector *Window);



PdsFir *pds_fir_get_new_bandpass(PdsDfNatural Order,PdsDfReal Wn1,PdsDfReal Wn2,const PdsVector *Window);

PdsFir *pds_fir_get_new_bandstop(PdsDfNatural Order,PdsDfReal Wn1,PdsDfReal Wn2,const PdsVector *Window);


int pds_fir_evaluate_value(PdsFir *FIR,PdsDfReal x,PdsDfReal *y);


int pds_fir_evaluate_vector(PdsFir *FIR,const PdsVector *x,PdsVector *y);



int pds_fir_get_x_value(PdsFir *FIR,PdsDfNatural i,PdsDfReal *x);

int pds_fir_get_h_value(PdsFir *FIR,PdsDfNatural i,PdsDfReal *h);


const PdsVector* pds_fir_get_h_vector(PdsFir *FIR);


int pds_fir_get_order(PdsFir *FIR);

int pds_fir_get_length(PdsFir *FIR);


int pds_fir_frequency_response(const PdsFir *FIR,PdsVector *H);


void pds_fir_free(PdsFir *FIR);


void pds_fir_destroy(PdsFir **FIR);


#ifdef __cplusplus
}
#endif 

#endif  /* __PDSFIR_H__ */