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-rwxr-xr-xsrc/iem16_delay.c303
1 files changed, 0 insertions, 303 deletions
diff --git a/src/iem16_delay.c b/src/iem16_delay.c
deleted file mode 100755
index 8d29ba0..0000000
--- a/src/iem16_delay.c
+++ /dev/null
@@ -1,303 +0,0 @@
-/* copyleft (c) 2003 forum::für::umläute -- IOhannes m zmölnig @ IEM
- * based on d_delay.c from pd:
- * Copyright (c) 1997-1999 Miller Puckette.
- * For information on usage and redistribution, and for a DISCLAIMER OF ALL
- * WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
-
-/* del16read~, del16write~, vd16~ */
-
-#include "iem16_table.h"
-
-#if defined __WIN32 || defined __WIN32__
-static int ugen_getsortno(void){return 0;}
-#else
-extern int ugen_getsortno(void);
-#endif
-
-#define DEFDELVS 64 /* LATER get this from canvas at DSP time */
-
-/* ----------------------------- del16write~ ----------------------------- */
-static t_class *sigdel16write_class;
-
-typedef struct del16writectl{
- int c_n;
- t_iem16_16bit *c_vec;
- int c_phase;
-} t_del16writectl;
-
-typedef struct _sigdel16write{
- t_object x_obj;
- t_symbol *x_sym;
- t_del16writectl x_cspace;
- int x_sortno; /* DSP sort number at which this was last put on chain */
- int x_rsortno; /* DSP sort # for first del16read or write in chain */
- int x_vecsize; /* vector size for del16read~ to use */
- float x_f;
-} t_sigdel16write;
-
-#define XTRASAMPS 4
-#define SAMPBLK 4
-
-/* routine to check that all del16writes/del16reads/vds have same vecsize */
-static void sigdel16write_checkvecsize(t_sigdel16write *x, int vecsize){
- if (x->x_rsortno != ugen_getsortno()) {
- x->x_vecsize = vecsize;
- x->x_rsortno = ugen_getsortno();
- }
- else if (vecsize != x->x_vecsize)
- pd_error(x, "del16read/del16write/vd vector size mismatch");
-}
-
-static void *sigdel16write_new(t_symbol *s, t_floatarg msec){
- int nsamps;
- t_sigdel16write *x = (t_sigdel16write *)pd_new(sigdel16write_class);
- if (!*s->s_name) s = gensym("del16write~");
- pd_bind(&x->x_obj.ob_pd, s);
- x->x_sym = s;
- nsamps = msec * sys_getsr() * (float)(0.001f);
- if (nsamps < 1) nsamps = 1;
- nsamps += ((- nsamps) & (SAMPBLK - 1));
- nsamps += DEFDELVS;
- x->x_cspace.c_n = nsamps;
- x->x_cspace.c_vec =
- (t_iem16_16bit *)getbytes((nsamps + XTRASAMPS) * sizeof(t_iem16_16bit));
- x->x_cspace.c_phase = XTRASAMPS;
- x->x_sortno = 0;
- x->x_vecsize = 0;
- x->x_f = 0;
- return (x);
-}
-
-static t_int *sigdel16write_perform(t_int *w){
- t_float *in = (t_float *)(w[1]);
- t_del16writectl *c = (t_del16writectl *)(w[2]);
- int n = (int)(w[3]);
- int phase = c->c_phase, nsamps = c->c_n;
- t_iem16_16bit *vp = c->c_vec, *bp = vp + phase, *ep = vp + (c->c_n + XTRASAMPS);
- phase += n;
- while (n--) {
- *bp++ = (*in++*IEM16_SCALE_UP);
- if (bp == ep) {
- vp[0] = ep[-4];
- vp[1] = ep[-3];
- vp[2] = ep[-2];
- vp[3] = ep[-1];
- bp = vp + XTRASAMPS;
- phase -= nsamps;
- }
- }
- c->c_phase = phase;
- return (w+4);
-}
-
-static void sigdel16write_dsp(t_sigdel16write *x, t_signal **sp){
- dsp_add(sigdel16write_perform, 3, sp[0]->s_vec, &x->x_cspace, sp[0]->s_n);
- x->x_sortno = ugen_getsortno();
- sigdel16write_checkvecsize(x, sp[0]->s_n);
-}
-
-static void sigdel16write_free(t_sigdel16write *x){
- pd_unbind(&x->x_obj.ob_pd, x->x_sym);
- freebytes(x->x_cspace.c_vec,
- (x->x_cspace.c_n + XTRASAMPS) * sizeof(t_iem16_16bit));
-}
-
-static void sigdel16write_setup(void){
- sigdel16write_class = class_new(gensym("del16write~"),
- (t_newmethod)sigdel16write_new, (t_method)sigdel16write_free,
- sizeof(t_sigdel16write), 0, A_DEFSYM, A_DEFFLOAT, 0);
- CLASS_MAINSIGNALIN(sigdel16write_class, t_sigdel16write, x_f);
- class_addmethod(sigdel16write_class, (t_method)sigdel16write_dsp,
- gensym("dsp"), 0);
-}
-
-// G.Holzmann: for PD-extended build system
-void del16write_tilde_setup(void)
-{
- sigdel16write_setup();
-}
-
-/* ----------------------------- del16read~ ----------------------------- */
-static t_class *sigdel16read_class;
-
-typedef struct _sigdel16read{
- t_object x_obj;
- t_symbol *x_sym;
- t_float x_deltime; /* delay in msec */
- int x_delsamps; /* delay in samples */
- t_float x_sr; /* samples per msec */
- t_float x_n; /* vector size */
- int x_zerodel; /* 0 or vecsize depending on read/write order */
-} t_sigdel16read;
-
-static void sigdel16read_16bit(t_sigdel16read *x, t_float f);
-
-static void *sigdel16read_new(t_symbol *s, t_floatarg f){
- t_sigdel16read *x = (t_sigdel16read *)pd_new(sigdel16read_class);
- x->x_sym = s;
- x->x_sr = 1;
- x->x_n = 1;
- x->x_zerodel = 0;
- sigdel16read_16bit(x, f);
- outlet_new(&x->x_obj, gensym("signal"));
- return (x);
-}
-
-static void sigdel16read_16bit(t_sigdel16read *x, t_float f){
- t_sigdel16write *delwriter =
- (t_sigdel16write *)pd_findbyclass(x->x_sym, sigdel16write_class);
- x->x_deltime = f;
- if (delwriter) {
- x->x_delsamps = (int)(0.5 + x->x_sr * x->x_deltime)
- + x->x_n - x->x_zerodel;
- if (x->x_delsamps < x->x_n) x->x_delsamps = x->x_n;
- else if (x->x_delsamps > delwriter->x_cspace.c_n - DEFDELVS)
- x->x_delsamps = delwriter->x_cspace.c_n - DEFDELVS;
- }
-}
-
-static t_int *sigdel16read_perform(t_int *w){
- t_float *out = (t_float *)(w[1]);
- t_del16writectl *c = (t_del16writectl *)(w[2]);
- int delsamps = *(int *)(w[3]);
- int n = (int)(w[4]);
- int phase = c->c_phase - delsamps, nsamps = c->c_n;
- t_iem16_16bit *vp = c->c_vec, *bp, *ep = vp + (c->c_n + XTRASAMPS);
-
- if (phase < 0) phase += nsamps;
- bp = vp + phase;
- while (n--) {
- *out++ = *bp++*IEM16_SCALE_DOWN;
- if (bp == ep) bp -= nsamps;
- }
- return (w+5);
-}
-
-static void sigdel16read_dsp(t_sigdel16read *x, t_signal **sp){
- t_sigdel16write *delwriter =
- (t_sigdel16write *)pd_findbyclass(x->x_sym, sigdel16write_class);
- x->x_sr = sp[0]->s_sr * 0.001;
- x->x_n = sp[0]->s_n;
- if (delwriter) {
- sigdel16write_checkvecsize(delwriter, sp[0]->s_n);
- x->x_zerodel = (delwriter->x_sortno == ugen_getsortno() ?
- 0 : delwriter->x_vecsize);
- sigdel16read_16bit(x, x->x_deltime);
- dsp_add(sigdel16read_perform, 4,
- sp[0]->s_vec, &delwriter->x_cspace, &x->x_delsamps, sp[0]->s_n);
- }
- else if (*x->x_sym->s_name)
- error("delread~: %s: no such delwrite~",x->x_sym->s_name);
-}
-
-static void sigdel16read_setup(void){
- sigdel16read_class = class_new(gensym("del16read~"),
- (t_newmethod)sigdel16read_new, 0,
- sizeof(t_sigdel16read), 0, A_DEFSYM, A_DEFFLOAT, 0);
- class_addmethod(sigdel16read_class, (t_method)sigdel16read_dsp,
- gensym("dsp"), 0);
- class_addfloat(sigdel16read_class, (t_method)sigdel16read_16bit);
-}
-
-// G.Holzmann: for PD-extended build system
-void del16read_tilde_setup(void)
-{
- sigdel16read_setup();
-}
-
-/* ----------------------------- vd~ ----------------------------- */
-static t_class *sig16vd_class;
-
-typedef struct _sig16vd{
- t_object x_obj;
- t_symbol *x_sym;
- t_float x_sr; /* samples per msec */
- int x_zerodel; /* 0 or vecsize depending on read/write order */
- float x_f;
-} t_sig16vd;
-
-static void *sig16vd_new(t_symbol *s){
- t_sig16vd *x = (t_sig16vd *)pd_new(sig16vd_class);
- if (!*s->s_name) s = gensym("vd~");
- x->x_sym = s;
- x->x_sr = 1;
- x->x_zerodel = 0;
- outlet_new(&x->x_obj, gensym("signal"));
- x->x_f = 0;
- return (x);
-}
-
-static t_int *sig16vd_perform(t_int *w){
- t_float *in = (t_float *)(w[1]);
- t_float *out = (t_float *)(w[2]);
- t_del16writectl *ctl = (t_del16writectl *)(w[3]);
- t_sig16vd *x = (t_sig16vd *)(w[4]);
- int n = (int)(w[5]);
-
- int nsamps = ctl->c_n;
- float limit = nsamps - n - 1;
- float fn = n-4;
- t_iem16_16bit *vp = ctl->c_vec, *bp, *wp = vp + ctl->c_phase;
- float zerodel = x->x_zerodel;
- while (n--) {
- float delsamps = x->x_sr * *in++ - zerodel, frac;
- int idelsamps;
- float a, b, c, d, cminusb;
- if (delsamps < 1.00001f) delsamps = 1.00001f;
- if (delsamps > limit) delsamps = limit;
- delsamps += fn;
- fn = fn - 1.0f;
- idelsamps = delsamps;
- frac = delsamps - (float)idelsamps;
- bp = wp - (idelsamps + 3);
- if (bp < vp + 4) bp += nsamps;
- d = bp[-3]*IEM16_SCALE_DOWN;
- c = bp[-2]*IEM16_SCALE_DOWN;
- b = bp[-1]*IEM16_SCALE_DOWN;
- a = bp[00]*IEM16_SCALE_DOWN;
- cminusb = c-b;
- *out++ = b + frac * (
- cminusb - 0.5f * (frac-1.) * (
- (a - d + 3.0f * cminusb) * frac + (b - a - cminusb)
- )
- );
- }
- return (w+6);
-}
-
-static void sig16vd_dsp(t_sig16vd *x, t_signal **sp){
- t_sigdel16write *delwriter =
- (t_sigdel16write *)pd_findbyclass(x->x_sym, sigdel16write_class);
- x->x_sr = sp[0]->s_sr * 0.001;
- if (delwriter) {
- sigdel16write_checkvecsize(delwriter, sp[0]->s_n);
- x->x_zerodel = (delwriter->x_sortno == ugen_getsortno() ?
- 0 : delwriter->x_vecsize);
- dsp_add(sig16vd_perform, 5,
- sp[0]->s_vec, sp[1]->s_vec,
- &delwriter->x_cspace, x, sp[0]->s_n);
- }
- else error("vd~: %s: no such delwrite~",x->x_sym->s_name);
-}
-
-static void sig16vd_setup(void){
- sig16vd_class = class_new(gensym("vd16~"), (t_newmethod)sig16vd_new, 0,
- sizeof(t_sig16vd), 0, A_DEFSYM, 0);
- class_addmethod(sig16vd_class, (t_method)sig16vd_dsp, gensym("dsp"), 0);
- CLASS_MAINSIGNALIN(sig16vd_class, t_sig16vd, x_f);
-}
-
-// G.Holzmann: for PD-extended build system
-void vd16_tilde_setup(void)
-{
- sig16vd_setup();
-}
-
-/* ----------------------- global setup routine ---------------- */
-
-void iem16_delay_setup(void){
- sigdel16write_setup();
- sigdel16read_setup();
- sig16vd_setup();
-}
-
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