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#include "../src/m_pd.h"
#include "../src/m_fixed.h"
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)
{
#ifdef ROCKBOX
(void) x;
#endif
}
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);
}
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