1 /* 2 reverb.h 3 4 Midi Wavetable Processing library 5 6 Copyright (C) Chris Ison 2001-2011 7 Copyright (C) Bret Curtis 2013-2014 8 9 This file is part of WildMIDI. 10 11 WildMIDI is free software: you can redistribute and/or modify the player 12 under the terms of the GNU General Public License and you can redistribute 13 and/or modify the library under the terms of the GNU Lesser General Public 14 License as published by the Free Software Foundation, either version 3 of 15 the licenses, or(at your option) any later version. 16 17 WildMIDI is distributed in the hope that it will be useful, but WITHOUT 18 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 19 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License and 20 the GNU Lesser General Public License for more details. 21 22 You should have received a copy of the GNU General Public License and the 23 GNU Lesser General Public License along with WildMIDI. If not, see 24 <http://www.gnu.org/licenses/>. 25 */ 26 27 #ifndef __REVERB_H 28 #define __REVERB_H 29 30 struct _rvb { 31 /* filter data */ 32 signed int l_buf_flt_in[8][6][2]; 33 signed int l_buf_flt_out[8][6][2]; 34 signed int r_buf_flt_in[8][6][2]; 35 signed int r_buf_flt_out[8][6][2]; 36 signed int coeff[8][6][5]; 37 /* buffer data */ 38 signed int *l_buf; 39 signed int *r_buf; 40 int l_buf_size; 41 int r_buf_size; 42 int l_out; 43 int r_out; 44 int l_sp_in[8]; 45 int r_sp_in[8]; 46 int l_in[4]; 47 int r_in[4]; 48 int gain; 49 unsigned long int max_reverb_time; 50 }; 51 52 extern void _WM_reset_reverb (struct _rvb *rvb); 53 extern struct _rvb *_WM_init_reverb(int rate, float room_x, float room_y, float listen_x, float listen_y); 54 extern void _WM_free_reverb (struct _rvb *rvb); 55 extern void _WM_do_reverb (struct _rvb *rvb, signed int *buffer, int size); 56 57 #endif /* __REVERB_H */ 58