#include #include static t_class *tabread4_tilde_class; typedef struct _tabread4_tilde { t_object x_obj; int x_npoints; t_sample *x_vec; t_symbol *x_arrayname; float x_f; } t_tabread4_tilde; static void *tabread4_tilde_new(t_symbol *s) { t_tabread4_tilde *x = (t_tabread4_tilde *)pd_new(tabread4_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 *tabread4_tilde_perform(t_int *w) { t_tabread4_tilde *x = (t_tabread4_tilde *)(w[1]); t_sample *in = (t_sample *)(w[2]); t_sample *out = (t_sample *)(w[3]); int n = (int)(w[4]); int maxindex; t_sample *buf = x->x_vec, *fp; int i; maxindex = x->x_npoints - 3; if (!buf) goto zero; for (i = 0; i < n; i++) { t_time findex = ((long long) mult((*in++),ftofix(44.1))); int index = fixtoi(findex); t_sample frac; // post("%d: index %d f %lld",index,findex,*in); if (index < 1) index = 1, frac = 0; else if (index > maxindex) index = maxindex, frac = 1; else frac = findex - itofix(index); fp = buf + index; *out++ = fp[0] + mult(frac,fp[1]-fp[0]); } return (w+5); zero: while (n--) *out++ = 0; return (w+5); } void tabread4_tilde_set(t_tabread4_tilde *x, t_symbol *s) { t_garray *a; x->x_arrayname = s; if (!(a = (t_garray *)pd_findbyclass(x->x_arrayname, garray_class))) { if (*s->s_name) error("tabread4~: %s: no such array", x->x_arrayname->s_name); x->x_vec = 0; } else if (!garray_getfloatarray(a, &x->x_npoints, &x->x_vec)) { error("%s: bad template for tabread4~", x->x_arrayname->s_name); x->x_vec = 0; } else garray_usedindsp(a); } static void tabread4_tilde_dsp(t_tabread4_tilde *x, t_signal **sp) { tabread4_tilde_set(x, x->x_arrayname); dsp_add(tabread4_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n); } static void tabread4_tilde_free(t_tabread4_tilde *x) { } void tabread4_tilde_setup(void) { tabread4_tilde_class = class_new(gensym("tabread4~"), (t_newmethod)tabread4_tilde_new, (t_method)tabread4_tilde_free, sizeof(t_tabread4_tilde), 0, A_DEFSYM, 0); CLASS_MAINSIGNALIN(tabread4_tilde_class, t_tabread4_tilde, x_f); class_addmethod(tabread4_tilde_class, (t_method)tabread4_tilde_dsp, gensym("dsp"), 0); class_addmethod(tabread4_tilde_class, (t_method)tabread4_tilde_set, gensym("set"), A_SYMBOL, 0); }