diff options
Diffstat (limited to 'src/iem16_array_tilde.c')
| -rw-r--r-- | src/iem16_array_tilde.c | 502 |
1 files changed, 502 insertions, 0 deletions
diff --git a/src/iem16_array_tilde.c b/src/iem16_array_tilde.c new file mode 100644 index 0000000..2cda11f --- /dev/null +++ b/src/iem16_array_tilde.c @@ -0,0 +1,502 @@ +/* copyleft (c) 2003 forum::für::umläute -- IOhannes m zmölnig @ IEM + * based on d_array.c from pd: + * Copyright (c) 1997-1999 Miller Puckette and others. + * For information on usage and redistribution, and for a DISCLAIMER OF ALL + * WARRANTIES, see the file, "LICENSE.txt," in this distribution. */ + +/* tab16write~, tab16play~, tab16read~, tab16read4~, tab16send~, tab16receive~ */ + +#include "iem16_table.h" + +/* ------------------------- tab16write~ -------------------------- */ + +static t_class *tab16write_tilde_class; + +typedef struct _tab16write_tilde { + t_object x_obj; + int x_phase; + int x_nsampsintab; + short *x_vec; + t_symbol *x_arrayname; + float x_f; +} t_tab16write_tilde; + +static void *tab16write_tilde_new(t_symbol *s) { + t_tab16write_tilde *x = (t_tab16write_tilde *)pd_new(tab16write_tilde_class); + x->x_phase = 0x7fffffff; + x->x_arrayname = s; + x->x_f = 0; + return (x); +} + +static t_int *tab16write_tilde_perform(t_int *w) { + t_tab16write_tilde *x = (t_tab16write_tilde *)(w[1]); + t_float *in = (t_float *)(w[2]); + int n = (int)(w[3]), phase = x->x_phase, endphase = x->x_nsampsintab; + if (!x->x_vec) goto bad; + + if (endphase > phase) { + int nxfer = endphase - phase; + t_iem16_16bit *fp = x->x_vec + phase; + if (nxfer > n) nxfer = n; + phase += nxfer; + while (nxfer--)*fp++ = *in++*IEM16_SCALE_UP; + x->x_phase = phase; + } + bad: + return (w+4); +} + +void tab16write_tilde_set(t_tab16write_tilde *x, t_symbol *s){ + t_table16 *a; + + x->x_arrayname = s; + if (!(a = (t_table16 *)pd_findbyclass(x->x_arrayname, table16_class))) { + if (*s->s_name) pd_error(x, "tab16write~: %s: no such array", + x->x_arrayname->s_name); + x->x_vec = 0; + } + else if (!table16_getarray16(a, &x->x_nsampsintab, &x->x_vec)) { + error("%s: bad template for tab16write~", x->x_arrayname->s_name); + x->x_vec = 0; + } + else table16_usedindsp(a); +} + +static void tab16write_tilde_dsp(t_tab16write_tilde *x, t_signal **sp){ + tab16write_tilde_set(x, x->x_arrayname); + dsp_add(tab16write_tilde_perform, 3, x, sp[0]->s_vec, sp[0]->s_n); +} + +static void tab16write_tilde_bang(t_tab16write_tilde *x){ + x->x_phase = 0; +} + +static void tab16write_tilde_stop(t_tab16write_tilde *x){} + +static void tab16write_tilde_free(t_tab16write_tilde *x){} + +static void tab16write_tilde_setup(void){ + tab16write_tilde_class = class_new(gensym("tab16write~"), + (t_newmethod)tab16write_tilde_new, (t_method)tab16write_tilde_free, + sizeof(t_tab16write_tilde), 0, A_DEFSYM, 0); + CLASS_MAINSIGNALIN(tab16write_tilde_class, t_tab16write_tilde, x_f); + class_addmethod(tab16write_tilde_class, (t_method)tab16write_tilde_dsp, + gensym("dsp"), 0); + class_addmethod(tab16write_tilde_class, (t_method)tab16write_tilde_set, + gensym("set"), A_SYMBOL, 0); + class_addmethod(tab16write_tilde_class, (t_method)tab16write_tilde_stop, + gensym("stop"), 0); + class_addbang(tab16write_tilde_class, tab16write_tilde_bang); +} + +/* ------------ tab16play~ - non-transposing sample playback --------------- */ + +static t_class *tab16play_tilde_class; + +typedef struct _tab16play_tilde{ + t_object x_obj; + t_outlet *x_bangout; + int x_phase; + int x_nsampsintab; + int x_limit; + t_iem16_16bit *x_vec; + t_symbol *x_arrayname; +} t_tab16play_tilde; + +static void *tab16play_tilde_new(t_symbol *s){ + t_tab16play_tilde *x = (t_tab16play_tilde *)pd_new(tab16play_tilde_class); + x->x_phase = 0x7fffffff; + x->x_limit = 0; + x->x_arrayname = s; + outlet_new(&x->x_obj, &s_signal); + x->x_bangout = outlet_new(&x->x_obj, &s_bang); + return (x); +} + +static t_int *tab16play_tilde_perform(t_int *w){ + t_tab16play_tilde *x = (t_tab16play_tilde *)(w[1]); + t_float *out = (t_float *)(w[2]); + t_iem16_16bit *fp; + int n = (int)(w[3]), phase = x->x_phase, + endphase = (x->x_nsampsintab < x->x_limit ? + x->x_nsampsintab : x->x_limit), nxfer, n3; + if (!x->x_vec || phase >= endphase) goto zero; + + nxfer = endphase - phase; + fp = x->x_vec + phase; + if (nxfer > n) + nxfer = n; + n3 = n - nxfer; + phase += nxfer; + while (nxfer--) *out++ = *fp++*IEM16_SCALE_DOWN; + if (phase >= endphase) { + x->x_phase = 0x7fffffff; + while (n3--) *out++ = 0; + } + else x->x_phase = phase; + + return (w+4); + zero: + while (n--) *out++ = 0; + return (w+4); +} + +void tab16play_tilde_set(t_tab16play_tilde *x, t_symbol *s){ + t_table16 *a; + + x->x_arrayname = s; + if (!(a = (t_table16 *)pd_findbyclass(x->x_arrayname, table16_class))) { + if (*s->s_name) pd_error(x, "tab16play~: %s: no such array", + x->x_arrayname->s_name); + x->x_vec = 0; + } + else if (!table16_getarray16(a, &x->x_nsampsintab, &x->x_vec)) { + error("%s: bad template for tab16play~", x->x_arrayname->s_name); + x->x_vec = 0; + } + else table16_usedindsp(a); +} + +static void tab16play_tilde_dsp(t_tab16play_tilde *x, t_signal **sp){ + tab16play_tilde_set(x, x->x_arrayname); + dsp_add(tab16play_tilde_perform, 3, x, sp[0]->s_vec, sp[0]->s_n); +} + +static void tab16play_tilde_list(t_tab16play_tilde *x, t_symbol *s, + int argc, t_atom *argv){ + long start = atom_getfloatarg(0, argc, argv); + long length = atom_getfloatarg(1, argc, argv); + if (start < 0) start = 0; + if (length <= 0)x->x_limit = 0x7fffffff; + else x->x_limit = start + length; + x->x_phase = start; +} + +static void tab16play_tilde_stop(t_tab16play_tilde *x){ + x->x_phase = 0x7fffffff; +} + +static void tab16play_tilde_free(t_tab16play_tilde *x){} + +static void tab16play_tilde_setup(void){ + tab16play_tilde_class = class_new(gensym("tab16play~"), + (t_newmethod)tab16play_tilde_new, (t_method)tab16play_tilde_free, + sizeof(t_tab16play_tilde), 0, A_DEFSYM, 0); + class_addmethod(tab16play_tilde_class, (t_method)tab16play_tilde_dsp, + gensym("dsp"), 0); + class_addmethod(tab16play_tilde_class, (t_method)tab16play_tilde_stop, + gensym("stop"), 0); + class_addmethod(tab16play_tilde_class, (t_method)tab16play_tilde_set, + gensym("set"), A_DEFSYM, 0); + class_addlist(tab16play_tilde_class, tab16play_tilde_list); +} + +/* ------------------------ tab16send~ ------------------------- */ + +static t_class *tab16send_class; + +typedef struct _tab16send{ + t_object x_obj; + t_iem16_16bit *x_vec; + int x_graphperiod; + int x_graphcount; + t_symbol *x_arrayname; + float x_f; +} t_tab16send; + +static void *tab16send_new(t_symbol *s){ + t_tab16send *x = (t_tab16send *)pd_new(tab16send_class); + x->x_graphcount = 0; + x->x_arrayname = s; + x->x_f = 0; + return (x); +} + +static t_int *tab16send_perform(t_int *w){ + t_tab16send *x = (t_tab16send *)(w[1]); + t_float *in = (t_float *)(w[2]); + int n = w[3]; + t_iem16_16bit *dest = x->x_vec; + int i = x->x_graphcount; + if (!x->x_vec) goto bad; + + while (n--) *dest = *in++*IEM16_SCALE_UP; + if (!i--)i = x->x_graphperiod; + x->x_graphcount = i; + bad: + return (w+4); +} + +static void tab16send_dsp(t_tab16send *x, t_signal **sp){ + int vecsize; + t_table16 *a; + + if (!(a = (t_table16 *)pd_findbyclass(x->x_arrayname, table16_class))) { + if (*x->x_arrayname->s_name) + error("tab16send~: %s: no such array", x->x_arrayname->s_name); + } + else if (!table16_getarray16(a, &vecsize, &x->x_vec)) + error("%s: bad template for tab16send~", x->x_arrayname->s_name); + else { + int n = sp[0]->s_n; + int ticksper = sp[0]->s_sr/n; + if (ticksper < 1) ticksper = 1; + x->x_graphperiod = ticksper; + if (x->x_graphcount > ticksper) x->x_graphcount = ticksper; + if (n < vecsize) vecsize = n; + table16_usedindsp(a); + dsp_add(tab16send_perform, 3, x, sp[0]->s_vec, vecsize); + } +} + +static void tab16send_free(t_tab16send *x){} + +static void tab16send_setup(void){ + tab16send_class = class_new(gensym("tab16send~"), (t_newmethod)tab16send_new, + (t_method)tab16send_free, sizeof(t_tab16send), 0, A_DEFSYM, 0); + CLASS_MAINSIGNALIN(tab16send_class, t_tab16send, x_f); + class_addmethod(tab16send_class, (t_method)tab16send_dsp, gensym("dsp"), 0); +} + +/* ------------------------ tab16receive~ ------------------------- */ + +static t_class *tab16receive_class; + +typedef struct _tab16receive{ + t_object x_obj; + t_iem16_16bit *x_vec; + t_symbol *x_arrayname; +} t_tab16receive; + +static t_int *tab16receive_perform(t_int *w){ + t_tab16receive *x = (t_tab16receive *)(w[1]); + t_float *out = (t_float *)(w[2]); + int n = w[3]; + t_iem16_16bit *from = x->x_vec; + if (from) while (n--) *out++ = *from++*IEM16_SCALE_DOWN; + else while (n--) *out++ = 0; + return (w+4); +} + +static void tab16receive_dsp(t_tab16receive *x, t_signal **sp){ + t_table16 *a; + int vecsize; + + if (!(a = (t_table16 *)pd_findbyclass(x->x_arrayname, table16_class))) { + if (*x->x_arrayname->s_name) + error("tab16send~: %s: no such array", x->x_arrayname->s_name); + } + else if (!table16_getarray16(a, &vecsize, &x->x_vec)) + error("%s: bad template for tab16receive~", x->x_arrayname->s_name); + else { + int n = sp[0]->s_n; + if (n < vecsize) vecsize = n; + table16_usedindsp(a); + dsp_add(tab16receive_perform, 3, x, sp[0]->s_vec, vecsize); + } +} + +static void *tab16receive_new(t_symbol *s){ + t_tab16receive *x = (t_tab16receive *)pd_new(tab16receive_class); + x->x_arrayname = s; + outlet_new(&x->x_obj, &s_signal); + return (x); +} + +static void tab16receive_setup(void){ + tab16receive_class = class_new(gensym("tab16receive~"), + (t_newmethod)tab16receive_new, 0, + sizeof(t_tab16receive), 0, A_DEFSYM, 0); + class_addmethod(tab16receive_class, (t_method)tab16receive_dsp, + gensym("dsp"), 0); +} + +/******************** tab16read~ ***********************/ + +static t_class *tab16read_tilde_class; + +typedef struct _tab16read_tilde{ + t_object x_obj; + int x_npoints; + t_iem16_16bit *x_vec; + t_symbol *x_arrayname; + float x_f; +} t_tab16read_tilde; + +static void *tab16read_tilde_new(t_symbol *s){ + t_tab16read_tilde *x = (t_tab16read_tilde *)pd_new(tab16read_tilde_class); + x->x_arrayname = s; + x->x_vec = 0; + outlet_new(&x->x_obj, gensym("signal")); + x->x_f = 0; + return (x); +} + +static t_int *tab16read_tilde_perform(t_int *w){ + t_tab16read_tilde *x = (t_tab16read_tilde *)(w[1]); + t_float *in = (t_float *)(w[2]); + t_float *out = (t_float *)(w[3]); + int n = (int)(w[4]); + int maxindex; + t_iem16_16bit *buf = x->x_vec; + int i; + + maxindex = x->x_npoints - 1; + if (!buf) goto zero; + + for (i = 0; i < n; i++) { + int index = *in++; + if (index < 0) index = 0; + else if (index > maxindex) index = maxindex; + *out++ = buf[index]*IEM16_SCALE_DOWN; + } + return (w+5); + zero: + while (n--) *out++ = 0; + + return (w+5); +} + +void tab16read_tilde_set(t_tab16read_tilde *x, t_symbol *s){ + t_table16 *a; + + x->x_arrayname = s; + if (!(a = (t_table16 *)pd_findbyclass(x->x_arrayname, table16_class))) { + if (*s->s_name) + error("tab16read~: %s: no such array", x->x_arrayname->s_name); + x->x_vec = 0; + } + else if (!table16_getarray16(a, &x->x_npoints, &x->x_vec)) { + error("%s: bad template for tab16read~", x->x_arrayname->s_name); + x->x_vec = 0; + } + else table16_usedindsp(a); +} + +static void tab16read_tilde_dsp(t_tab16read_tilde *x, t_signal **sp){ + tab16read_tilde_set(x, x->x_arrayname); + + dsp_add(tab16read_tilde_perform, 4, x, + sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n); + +} + +static void tab16read_tilde_free(t_tab16read_tilde *x){} + +static void tab16read_tilde_setup(void){ + tab16read_tilde_class = class_new(gensym("tab16read~"), + (t_newmethod)tab16read_tilde_new, (t_method)tab16read_tilde_free, + sizeof(t_tab16read_tilde), 0, A_DEFSYM, 0); + CLASS_MAINSIGNALIN(tab16read_tilde_class, t_tab16read_tilde, x_f); + class_addmethod(tab16read_tilde_class, (t_method)tab16read_tilde_dsp, + gensym("dsp"), 0); + class_addmethod(tab16read_tilde_class, (t_method)tab16read_tilde_set, + gensym("set"), A_SYMBOL, 0); +} + +/******************** tab16read4~ ***********************/ + +static t_class *tab16read4_tilde_class; + +typedef struct _tab16read4_tilde{ + t_object x_obj; + int x_npoints; + t_iem16_16bit *x_vec; + t_symbol *x_arrayname; + float x_f; +} t_tab16read4_tilde; + +static void *tab16read4_tilde_new(t_symbol *s){ + t_tab16read4_tilde *x = (t_tab16read4_tilde *)pd_new(tab16read4_tilde_class); + x->x_arrayname = s; + x->x_vec = 0; + outlet_new(&x->x_obj, gensym("signal")); + x->x_f = 0; + return (x); +} + +static t_int *tab16read4_tilde_perform(t_int *w){ + t_tab16read4_tilde *x = (t_tab16read4_tilde *)(w[1]); + t_float *in = (t_float *)(w[2]); + t_float *out = (t_float *)(w[3]); + int n = (int)(w[4]); + int maxindex; + t_iem16_16bit *buf = x->x_vec; + t_iem16_16bit *fp; + int i; + + maxindex = x->x_npoints - 3; + + if (!buf) goto zero; + + for (i = 0; i < n; i++) { + float findex = *in++; + int index = findex; + float frac, a, b, c, d, cminusb; + if (index < 1) index = 1, frac = 0; + else if (index > maxindex) index = maxindex, frac = 1; + else frac = findex - index; + fp = buf + index; + a = fp[-1]*IEM16_SCALE_DOWN; + b = fp[0]*IEM16_SCALE_DOWN; + c = fp[1]*IEM16_SCALE_DOWN; + d = fp[2]*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+5); + zero: + while (n--) *out++ = 0; + + return (w+5); +} + +void tab16read4_tilde_set(t_tab16read4_tilde *x, t_symbol *s){ + t_table16 *a; + + x->x_arrayname = s; + if (!(a = (t_table16 *)pd_findbyclass(x->x_arrayname, table16_class))) { + if (*s->s_name) + error("tab16read4~: %s: no such array", x->x_arrayname->s_name); + x->x_vec = 0; + } + else if (!table16_getarray16(a, &x->x_npoints, &x->x_vec)) { + error("%s: bad template for tab16read4~", x->x_arrayname->s_name); + x->x_vec = 0; + } + else table16_usedindsp(a); +} + +static void tab16read4_tilde_dsp(t_tab16read4_tilde *x, t_signal **sp){ + tab16read4_tilde_set(x, x->x_arrayname); + + dsp_add(tab16read4_tilde_perform, 4, x, + sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n); +} + +static void tab16read4_tilde_setup(void){ + tab16read4_tilde_class = class_new(gensym("tab16read4~"), + (t_newmethod)tab16read4_tilde_new, 0, + sizeof(t_tab16read4_tilde), 0, A_DEFSYM, 0); + CLASS_MAINSIGNALIN(tab16read4_tilde_class, t_tab16read4_tilde, x_f); + class_addmethod(tab16read4_tilde_class, (t_method)tab16read4_tilde_dsp, + gensym("dsp"), 0); + class_addmethod(tab16read4_tilde_class, (t_method)tab16read4_tilde_set, + gensym("set"), A_SYMBOL, 0); +} +/* ------------------------ global setup routine ------------------------- */ + +void iem16_array_tilde_setup(void){ + tab16write_tilde_setup(); + tab16play_tilde_setup(); + tab16read_tilde_setup(); + tab16read4_tilde_setup(); + tab16send_setup(); + tab16receive_setup(); +} + |