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C/C++ Source or Header  |  2001-08-22  |  3.4 KB  |  66 lines
  1. /* fft/real_pass.h
  2.  * 
  3.  * Copyright (C) 1996, 1997, 1998, 1999, 2000 Brian Gough
  4.  * 
  5.  * This program is free software; you can redistribute it and/or modify
  6.  * it under the terms of the GNU General Public License as published by
  7.  * the Free Software Foundation; either version 2 of the License, or (at
  8.  * your option) any later version.
  9.  * 
  10.  * This program is distributed in the hope that it will be useful, but
  11.  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13.  * General Public License for more details.
  14.  * 
  15.  * You should have received a copy of the GNU General Public License
  16.  * along with this program; if not, write to the Free Software
  17.  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18.  */
  19.  
  20. static void FUNCTION(fft_real,pass_2) (const BASE in[],
  21.                                        const size_t istride,
  22.                                        BASE out[],
  23.                                        const size_t ostride,
  24.                                        const size_t product,
  25.                                        const size_t n,
  26.                                        const TYPE(gsl_complex) twiddle[]);
  27.  
  28. static void FUNCTION(fft_real,pass_3) (const BASE in[], 
  29.                                        const size_t istride,
  30.                                        BASE out[],
  31.                                        const size_t ostride,
  32.                                        const size_t product,
  33.                                        const size_t n,
  34.                                        const TYPE(gsl_complex) twiddle1[],
  35.                                        const TYPE(gsl_complex) twiddle2[]);
  36.  
  37. static void FUNCTION(fft_real,pass_4) (const BASE in[],
  38.                                        const size_t istride,
  39.                                        BASE out[],
  40.                                        const size_t ostride,
  41.                                        const size_t product,
  42.                                        const size_t n,
  43.                                        const TYPE(gsl_complex) twiddle1[],
  44.                                        const TYPE(gsl_complex) twiddle2[],
  45.                                        const TYPE(gsl_complex) twiddle3[]);
  46.  
  47. static void FUNCTION(fft_real,pass_5) (const BASE in[],
  48.                                        const size_t istride,
  49.                                        BASE out[],
  50.                                        const size_t ostride,
  51.                                        const size_t product,
  52.                                        const size_t n,
  53.                                        const TYPE(gsl_complex) twiddle1[],
  54.                                        const TYPE(gsl_complex) twiddle2[],
  55.                                        const TYPE(gsl_complex) twiddle3[],
  56.                                        const TYPE(gsl_complex) twiddle4[]);
  57.  
  58. static void FUNCTION(fft_real,pass_n) (const BASE in[], 
  59.                                        const size_t istride,
  60.                                        BASE out[],
  61.                                        const size_t ostride,
  62.                                        const size_t factor,
  63.                                        const size_t product,
  64.                                        const size_t n,
  65.                                        const TYPE(gsl_complex) twiddle[]);
  66.