Chris@0: /*
Chris@0:   copyright (C) 2012 I. Irigaray, M. Rocamora
Chris@0: 
Chris@0:   This program is free software: you can redistribute it and/or modify
Chris@0:   it under the terms of the GNU General Public License as published by
Chris@0:   the Free Software Foundation, either version 3 of the License, or
Chris@0:   (at your option) any later version.
Chris@0: 
Chris@0:   This program is distributed in the hope that it will be useful,
Chris@0:   but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@0:   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@0:   GNU General Public License for more details.
Chris@0: 
Chris@0:   You should have received a copy of the GNU General Public License
Chris@0:   along with this program.  If not, see <http://www.gnu.org/licenses/>.
Chris@0:  */
Chris@0: 
Chris@14: #ifndef FCHTRANSFORMUTILS_H
Chris@14: #define FCHTRANSFORMUTILS_H
Chris@14: 
Chris@0: #include <string.h>
Chris@0: 
Chris@14: class Utils
Chris@14: {
Chris@14: public:
Chris@14:     static void interp1(const double *x1,const double *y1, int N1, const double *x2, double *y2, int N2);
Chris@0: 
Chris@14:     static void interp1q(const double *y1, const int *x2_int, const double *x2_frac, double *y2, int N2){
Chris@14:         for(int i=0;i<N2;i++){
Chris@14:             y2[i] = y1[x2_int[i]]*(1.0-x2_frac[i])+y1[x2_int[i]+1]*x2_frac[i];
Chris@14:         } // for
Chris@14:     }
Chris@0: 
Chris@14:     static void cumtrapz(const double *x, const double *y, int N, double *accum);
Chris@0: 
Chris@14:     static void hanning_window(double *p_window, int n, bool normalize);
Chris@14: };
Chris@14: 
Chris@14: #endif
Chris@14: