1 // ---------------------------------------------------------------------------- 2 // 3 // Copyright (C) 2008-2018 Fons Adriaensen <fons@linuxaudio.org> 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 3 of the License, or 8 // (at your option) any later version. 9 // 10 // This program is distributed in the hope that it will be useful, 11 // but WITHOUT ANY WARRANTY; without even the implied warranty of 12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 // GNU 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, see <http://www.gnu.org/licenses/>. 17 // 18 // ---------------------------------------------------------------------------- 19 20 21 #ifndef __EQGAIN_H 22 #define __EQGAIN_H 23 24 25 #include <stdint.h> 26 27 28 class Eqgain 29 { 30 public: 31 32 Eqgain (void); 33 ~Eqgain (void); 34 35 void setgain (float g) 36 { 37 _g0 = g; 38 _touch0++; 39 } 40 void bypass (bool s) 41 { 42 if (s != _bypass) 43 { 44 _bypass = s; 45 _touch0++; 46 } 47 } 48 void prepare (int nsamp); 49 void process (int nsamp, int nchan, float *inp[], float *out[]); 50 51 private: 52 53 enum { BYPASS, STATIC, SMOOTH }; 54 55 volatile int16_t _touch0; 56 volatile int16_t _touch1; 57 bool _bypass; 58 int _state; 59 float _g0, _g1; 60 float _g, _dg; 61 }; 62 63 64 #endif 65