1 #if !defined HAVE_DCTDST_H__ 2 #define HAVE_DCTDST_H__ 3 // This file is part of the FXT library. 4 // Copyright (C) 2010, 2018 Joerg Arndt 5 // License: GNU General Public License version 3 or later, 6 // see the file COPYING.txt in the main directory. 7 8 9 #include "fxttypes.h" 10 11 //: cosine and sine transforms 12 13 // dctdst/cosrot.cc: 14 void cos_rot(const double *x, double *y, ulong n); // aux 15 16 17 // dctdst/dct.cc: 18 //void dct(double *x, ulong ldn, double *y=nullptr); 19 //void dct_basis(double *f, ulong n, ulong k); 20 21 // dctdst/dcth.cc: 22 void dcth(double *x, ulong ldn, double *y=nullptr); 23 void idcth(double *x, ulong ldn, double *y=nullptr); 24 void dcth_basis(double *f, ulong n, ulong k); 25 26 // dctdst/dctzapata.cc: 27 void dcth_zapata(double *x, ulong ldn, double *y=nullptr); 28 29 // dctdst/dct4.cc: 30 void dct4(double *f, ulong n); 31 void idct4(double *f, ulong n); 32 void dct4_basis(double *f, ulong n, ulong k); 33 34 35 // dctdst/dst.cc: 36 void dst(double *x, ulong ldn, double *y=nullptr); 37 void dst_basis(double *f, ulong n, ulong k); 38 39 // dctdst/dsth.cc: 40 void dsth(double *x, ulong ldn, double *y=nullptr); 41 void idsth(double *x, ulong ldn, double *y=nullptr); 42 void dsth_basis(double *f, ulong n, ulong k); 43 44 45 #endif // !defined HAVE_DCTDST_H__ 46