1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
|
/*
oscbnk.h:
Copyright (C) 2002, 2005 Istvan Varga
This file is part of Csound.
The Csound Library is free software; you can redistribute it
and/or modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
Csound is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with Csound; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA
*/
#ifndef CSOUND_OSCBNK_H
#define CSOUND_OSCBNK_H
#include "stdopcod.h"
/*
#ifdef B64BIT
#define MAXLEN 0x40000000
#define FMAXLEN ((MYFLT)(MAXLEN))
#define PHMASK 0x3fffffff
#else
#define MAXLEN 0x1000000L
#define FMAXLEN ((MYFLT)(MAXLEN))
#define PHMASK 0x0FFFFFFL
#endif
*/
/* ---- oscbnk, grain2, and grain3 - written by Istvan Varga, 2001 ---- */
#define OSCBNK_PHSMAX 0x80000000UL /* max. phase */
#define OSCBNK_PHSMSK 0x7FFFFFFFUL /* phase mask */
#define OSCBNK_RNDPHS 0 /* 31 bit rand -> phase bit shift */
/* convert floating point phase value to integer */
#define OSCBNK_PHS2INT(x) \
((uint32) MYFLT2LRND((x) * (MYFLT) OSCBNK_PHSMAX) & OSCBNK_PHSMSK)
/* oscbnk types */
typedef struct {
uint32 LFO1phs; /* LFO 1 phase */
MYFLT LFO1frq; /* LFO 1 frequency (0-1) */
uint32 LFO2phs; /* LFO 2 phase */
MYFLT LFO2frq; /* LFO 2 frequency (0-1) */
uint32 osc_phs; /* main oscillator phase */
MYFLT osc_phm; /* phase mod. */
MYFLT osc_frq, osc_amp; /* osc. freq. / sr, amplitude */
MYFLT xnm1, xnm2, ynm1, ynm2; /* EQ tmp data */
MYFLT a1, a2, b0, b1, b2; /* EQ coeffs saved for interp. */
} OSCBNK_OSC;
typedef struct {
OPDS h;
MYFLT *args[27]; /* opcode args (see manual) */
int32_t init_k; /* 1st k-cycle (0: no, 1: yes) */
int32_t nr_osc; /* number of oscillators */
int32 seed; /* random seed */
int32_t ilfomode, ieqmode; /* LFO and EQ mode */
int32_t eq_interp; /* enable filter coeff. interp. */
MYFLT frq_scl; /* constants for calculating */
MYFLT lf1_scl, lf1_ofs; /* k-rate parameters */
MYFLT lf2_scl, lf2_ofs;
MYFLT eqo_scl, eqo_ofs;
MYFLT eql_scl, eql_ofs;
MYFLT eqq_scl, eqq_ofs;
MYFLT *l1t, l1t_pfrac; /* LFO 1 ftable */
uint32 l1t_mask, l1t_lobits;
MYFLT *l2t, l2t_pfrac; /* LFO 2 ftable */
uint32 l2t_mask, l2t_lobits;
MYFLT *eqft; /* EQ frequency table */
int32 eqft_len;
MYFLT *eqlt; /* EQ level table */
int32 eqlt_len;
MYFLT *eqqt; /* EQ Q table */
int32 eqqt_len;
MYFLT *tabl; /* parameter input table */
int32 tabl_len; /* (optional) */
MYFLT *outft; /* parameter output table */
int32 outft_len; /* (optional) */
int32 tabl_cnt; /* current param in table */
AUXCH auxdata;
OSCBNK_OSC *osc; /* oscillator array */
} OSCBNK;
/* grain2 types */
typedef struct {
uint32 grain_phs; /* grain phase */
uint32 grain_frq_int; /* grain frequency (integer) */
MYFLT grain_frq_flt; /* grain frequency (float) */
uint32 window_phs; /* window phase */
} GRAIN2_OSC;
typedef struct {
OPDS h;
MYFLT *ar, *kcps, *kfmd; /* opcode args */
MYFLT *kgdur, *iovrlp;
MYFLT *kfn, *iwfn, *irpow;
MYFLT *iseed, *imode;
int32_t init_k; /* 1st k-cycle (0: no, 1: yes) */
int32_t mode; /* imode (see manual) */
int32_t nr_osc; /* number of oscillators */
int32 seed; /* random seed */
int32_t rnd_mode; /* random distribution params */
MYFLT rnd_pow;
MYFLT grain_frq, frq_scl; /* grain frequency */
MYFLT *wft, wft_pfrac; /* window table */
uint32 wft_lobits, wft_mask;
AUXCH auxdata;
GRAIN2_OSC *osc; /* oscillator array */
} GRAIN2;
/* -------- grain3 types -------- */
typedef struct {
OPDS h;
MYFLT *ar, *kcps, *kphs; /* opcode args */
MYFLT *kfmd, *kpmd;
MYFLT *kgdur, *kdens;
MYFLT *imaxovr, *kfn, *iwfn;
MYFLT *kfrpow, *kprpow;
MYFLT *iseed, *imode;
int32_t init_k; /* 1st k-cycle (0: no, 1: yes) */
int32_t mode; /* imode (see manual) */
int32_t ovrlap; /* max. number of oscillators */
int32 seed; /* random seed */
int32_t f_rnd_mode; /* random distribution (freq.) */
MYFLT f_rnd_pow;
int32_t p_rnd_mode, pm_wrap; /* random distribution (phase) */
MYFLT p_rnd_pow;
uint32 grain_frq; /* grain frequency */
MYFLT frq_scl;
MYFLT phs0; /* prev. kphs value for interp. */
uint32 x_phs;
MYFLT *wft, wft_pfrac; /* window table */
uint32 wft_lobits, wft_mask;
AUXCH auxdata;
uint32 *phase; /* grain phase offset */
GRAIN2_OSC *osc; /* oscillator array */
GRAIN2_OSC *osc_start; /* first active grain */
GRAIN2_OSC *osc_end; /* last active grain + 1 */
GRAIN2_OSC *osc_max; /* ptr to last osc in array */
} GRAIN3;
/* -------- rnd31 types -------- */
typedef struct {
OPDS h; /* opcode args */
MYFLT *out; /* output signal */
MYFLT *scl; /* scale */
MYFLT *rpow; /* distribution */
MYFLT *iseed; /* seed */
/* internal variables */
int32 *rnd31i_seed; /* global seed for rnd31 */
int32 seed; /* random seed */
} RND31;
/* -------- oscilikt types -------- */
typedef struct {
OPDS h;
MYFLT *sr, *xamp, *xcps, *kfn, *iphs, *istor;
uint32 phs, lobits, mask;
MYFLT pfrac, *ft, oldfn;
} OSCKT;
typedef struct {
OPDS h;
MYFLT *ar, *kcps, *kfn, *kphs, *istor;
uint32 phs, lobits, mask;
MYFLT pfrac, *ft, oldfn, old_phs;
int32_t init_k;
} OSCKTP;
typedef struct {
OPDS h;
MYFLT *ar, *xamp, *xcps, *kfn, *async, *kphs, *istor;
uint32 phs, lobits, mask;
MYFLT pfrac, *ft, oldfn;
int32_t init_k;
} OSCKTS;
/* ---- vco2init, vco2ft, and vco2 opcodes by Istvan Varga, Sep 2002 ---- */
/* Select algorithm to be used for finding table numbers */
/* Define this macro to use simple table lookup (slower */
/* at high control rate, due to float->int32_t cast), or */
/* comment it out to use a search algorithm (slower with */
/* very fast changes in frequency) */
#define VCO2FT_USE_TABLE 1
typedef struct {
int32_t npart; /* number of harmonic partials (may be zero) */
int32_t size; /* size of the table (not incl. guard point) */
uint32 /* parameters needed for reading the table, */
lobits, mask; /* and interpolation */
MYFLT pfrac;
MYFLT *ftable; /* table data (size + 1 floats) */
} VCO2_TABLE;
struct VCO2_TABLE_ARRAY_ {
int32_t ntabl; /* number of tables */
int32_t base_ftnum; /* base ftable number (-1: none) */
#ifdef VCO2FT_USE_TABLE
VCO2_TABLE **nparts_tabl; /* table ptrs for all numbers of partials */
#else
MYFLT *nparts; /* number of partials list */
#endif
VCO2_TABLE *tables; /* array of table structures */
};
typedef struct {
OPDS h;
MYFLT *ift, *iwaveforms, *iftnum, *ipmul, *iminsiz, *imaxsiz, *isrcft;
} VCO2INIT;
typedef struct {
OPDS h;
MYFLT *ar, *kamp, *kcps, *imode, *kpw, *kphs, *inyx;
MYFLT *dummy[9];
#ifdef VCO2FT_USE_TABLE
VCO2_TABLE **nparts_tabl; /* table ptrs for all numbers of partials */
#endif
int32_t init_k; /* 1 in first k-cycle, 0 otherwise */
int32_t mode; /* algorithm (0, 1, or 2) */
int32_t pm_enabled; /* phase modulation enabled (0: no, 1: yes) */
#ifdef VCO2FT_USE_TABLE
MYFLT f_scl, p_min, p_scl, kphs_old, kphs2_old;
#else
MYFLT f_scl, p_min, p_scl, *npart_old, *nparts, kphs_old, kphs2_old;
VCO2_TABLE *tables; /* pointer to array of tables */
#endif
uint32 phs, phs2; /* oscillator phase */
VCO2_TABLE_ARRAY ***vco2_tables;
int32_t *vco2_nr_table_arrays;
} VCO2;
typedef struct {
OPDS h;
MYFLT *kft, *kcps, *iwave, *inyx;
MYFLT p_min, p_scl;
#ifdef VCO2FT_USE_TABLE
VCO2_TABLE **nparts_tabl, *tab0;
#else
MYFLT *npart_old, *nparts;
#endif
VCO2_TABLE_ARRAY ***vco2_tables;
int32_t *vco2_nr_table_arrays;
int32_t base_ftnum;
} VCO2FT;
typedef struct { /* denorm a1[, a2[, a3[, ... ]]] */
OPDS h;
MYFLT *ar[256];
int32_t *seedptr;
} DENORMS;
typedef struct { /* kr delayk ksig, idel[, imode] */
OPDS h;
MYFLT *ar, *ksig, *idel, *imode;
int32_t npts, init_k, readp, mode;
AUXCH aux;
} DELAYK;
typedef struct { /* kr vdel_k ksig, kdel, imdel[, imode] */
OPDS h;
MYFLT *ar, *ksig, *kdel, *imdel, *imode;
int32_t npts, init_k, wrtp, mode;
MYFLT frstkval;
AUXCH aux;
} VDELAYK;
typedef struct { /* ar rbjeq asig, kfco, klvl, kQ, kS[, imode] */
OPDS h;
MYFLT *ar, *asig, *kcps, *klvl, *kQ, *kS, *imode; /* args */
/* internal variables */
MYFLT old_kcps, old_klvl, old_kQ, old_kS;
double omega, cs, sn;
MYFLT xnm1, xnm2, ynm1, ynm2;
MYFLT b0, b1, b2, a1, a2;
int32_t
ftype;
} RBJEQ;
#endif /* CSOUND_OSCBNK_H */
|
