00001 /* 00002 oscils.h: 00003 00004 Copyright (C) 2002 Istvan Varga 00005 00006 This file is part of Csound. 00007 00008 The Csound Library is free software; you can redistribute it 00009 and/or modify it under the terms of the GNU Lesser General Public 00010 License as published by the Free Software Foundation; either 00011 version 2.1 of the License, or (at your option) any later version. 00012 00013 Csound is distributed in the hope that it will be useful, 00014 but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00016 GNU Lesser General Public License for more details. 00017 00018 You should have received a copy of the GNU Lesser General Public 00019 License along with Csound; if not, write to the Free Software 00020 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 00021 02111-1307 USA 00022 */ 00023 00024 /* ------ oscils, lphasor, and tablexkt by Istvan Varga (Jan 5 2002) ------ */ 00025 00026 #ifndef CSOUND_OSCILS_H 00027 #define CSOUND_OSCILS_H 00028 00029 /* oscils opcode struct */ 00030 00031 typedef struct { 00032 OPDS h; 00033 MYFLT *ar, *iamp, *icps, *iphs, *iflg; /* opcode args */ 00034 /* internal variables */ 00035 int use_double; 00036 double xd, cd, vd; 00037 MYFLT x, c, v; 00038 } OSCILS; 00039 00040 /* lphasor opcode struct */ 00041 00042 typedef struct { 00043 OPDS h; 00044 MYFLT *ar, *xtrns, *ilps, *ilpe; /* opcode */ 00045 MYFLT *imode, *istrt, *istor; /* args */ 00046 /* internal variables */ 00047 int loop_mode; 00048 double phs, lps, lpe; 00049 int dir; /* playback direction (0: backward, 1: forward) */ 00050 } LPHASOR; 00051 00052 /* tablexkt opcode struct */ 00053 00054 typedef struct { 00055 OPDS h; 00056 MYFLT *ar, *xndx, *kfn, *kwarp, *iwsize; /* opcode */ 00057 MYFLT *ixmode, *ixoff, *iwrap; /* args */ 00058 /* internal variables */ 00059 int raw_ndx, ndx_scl, wrap_ndx, wsize; 00060 MYFLT win_fact; 00061 /* double wsized2_d, pidwsize_d; */ /* for oscils_hann.c */ 00062 } TABLEXKT; 00063 00064 /* these functions are exported to entry*.c */ 00065 00066 #ifndef CSOUND_OSCILS_C 00067 extern int oscils_set (void*); 00068 extern int oscils (void*); 00069 extern int lphasor_set (void*); 00070 extern int lphasor (void*); 00071 extern int tablexkt_set (void*); 00072 extern int tablexkt (void*); 00073 #endif 00074 00075 #endif /* CSOUND_OSCILS_H */ 00076