1 /* 2 oscils.h: 3 4 Copyright (C) 2002 Istvan Varga 5 6 This file is part of Csound. 7 8 The Csound Library is free software; you can redistribute it 9 and/or modify it under the terms of the GNU Lesser General Public 10 License as published by the Free Software Foundation; either 11 version 2.1 of the License, or (at your option) any later version. 12 13 Csound is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU Lesser General Public License for more details. 17 18 You should have received a copy of the GNU Lesser General Public 19 License along with Csound; if not, write to the Free Software 20 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 21 02110-1301 USA 22 */ 23 24 /* ------ oscils, lphasor, and tablexkt by Istvan Varga (Jan 5 2002) ------ */ 25 26 #ifndef CSOUND_OSCILS_H 27 #define CSOUND_OSCILS_H 28 29 /* oscils opcode struct */ 30 31 typedef struct { 32 OPDS h; 33 MYFLT *ar, *iamp, *icps, *iphs, *iflg; /* opcode args */ 34 /* internal variables */ 35 int use_double; 36 double xd, cd, vd; 37 MYFLT x, c, v; 38 } OSCILS; 39 40 /* lphasor opcode struct */ 41 42 typedef struct { 43 OPDS h; 44 MYFLT *ar, *xtrns, *ilps, *ilpe; /* opcode */ 45 MYFLT *imode, *istrt, *istor; /* args */ 46 /* internal variables */ 47 int loop_mode; 48 double phs, lps, lpe; 49 int dir; /* playback direction (0: backward, 1: forward) */ 50 } LPHASOR; 51 52 /* tablexkt opcode struct */ 53 54 typedef struct { 55 OPDS h; 56 MYFLT *ar, *xndx, *kfn, *kwarp, *iwsize; /* opcode */ 57 MYFLT *ixmode, *ixoff, *iwrap; /* args */ 58 /* internal variables */ 59 int raw_ndx, ndx_scl, wrap_ndx, wsize; 60 MYFLT win_fact; 61 /* double wsized2_d, pidwsize_d; */ /* for oscils_hann.c */ 62 } TABLEXKT; 63 64 /* these functions are exported to entry*.c */ 65 66 #ifndef CSOUND_OSCILS_C 67 extern int oscils_set (CSOUND *, void*); 68 extern int oscils (CSOUND *, void*); 69 extern int lphasor_set (CSOUND *, void*); 70 extern int lphasor (CSOUND *, void*); 71 extern int tablexkt_set (CSOUND *, void*); 72 extern int tablexkt (CSOUND *, void*); 73 #endif 74 75 #endif /* CSOUND_OSCILS_H */ 76 77