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#include <m_pd.h>
#include <m_fixed.h>
static t_class *tabwrite_tilde_class;
typedef struct _tabwrite_tilde
{
t_object x_obj;
int x_phase;
int x_nsampsintab;
t_sample *x_vec;
t_symbol *x_arrayname;
t_clock *x_clock;
float x_f;
} t_tabwrite_tilde;
static void tabwrite_tilde_tick(t_tabwrite_tilde *x);
static void *tabwrite_tilde_new(t_symbol *s)
{
t_tabwrite_tilde *x = (t_tabwrite_tilde *)pd_new(tabwrite_tilde_class);
x->x_clock = clock_new(x, (t_method)tabwrite_tilde_tick);
x->x_phase = 0x7fffffff;
x->x_arrayname = s;
x->x_f = 0;
return (x);
}
static t_int *tabwrite_tilde_perform(t_int *w)
{
t_tabwrite_tilde *x = (t_tabwrite_tilde *)(w[1]);
t_sample *in = (t_sample *)(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_sample *fp = x->x_vec + phase;
if (nxfer > n) nxfer = n;
phase += nxfer;
while (nxfer--)
{
t_sample f = *in++;
*fp++ = f;
}
if (phase >= endphase)
{
clock_delay(x->x_clock, 0);
phase = 0x7fffffff;
}
x->x_phase = phase;
}
bad:
return (w+4);
}
void tabwrite_tilde_set(t_tabwrite_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) pd_error(x, "tabwrite~: %s: no such array",
x->x_arrayname->s_name);
x->x_vec = 0;
}
else if (!garray_getfloatarray(a, &x->x_nsampsintab, &x->x_vec))
{
error("%s: bad template for tabwrite~", x->x_arrayname->s_name);
x->x_vec = 0;
}
else garray_usedindsp(a);
}
static void tabwrite_tilde_dsp(t_tabwrite_tilde *x, t_signal **sp)
{
tabwrite_tilde_set(x, x->x_arrayname);
dsp_add(tabwrite_tilde_perform, 3, x, sp[0]->s_vec, sp[0]->s_n);
}
static void tabwrite_tilde_bang(t_tabwrite_tilde *x)
{
x->x_phase = 0;
}
static void tabwrite_tilde_float(t_tabwrite_tilde *x,t_float n)
{
if (n < x->x_nsampsintab)
x->x_phase = n;
else
x->x_phase = 0;
}
static void tabwrite_tilde_stop(t_tabwrite_tilde *x)
{
if (x->x_phase != 0x7fffffff)
{
tabwrite_tilde_tick(x);
x->x_phase = 0x7fffffff;
}
}
static void tabwrite_tilde_tick(t_tabwrite_tilde *x)
{
t_garray *a = (t_garray *)pd_findbyclass(x->x_arrayname, garray_class);
if (!a) bug("tabwrite_tilde_tick");
else garray_redraw(a);
}
static void tabwrite_tilde_free(t_tabwrite_tilde *x)
{
clock_free(x->x_clock);
}
void tabwrite_tilde_setup(void)
{
tabwrite_tilde_class = class_new(gensym("tabwrite~"),
(t_newmethod)tabwrite_tilde_new, (t_method)tabwrite_tilde_free,
sizeof(t_tabwrite_tilde), 0, A_DEFSYM, 0);
CLASS_MAINSIGNALIN(tabwrite_tilde_class, t_tabwrite_tilde, x_f);
class_addmethod(tabwrite_tilde_class, (t_method)tabwrite_tilde_dsp,
gensym("dsp"), 0);
class_addmethod(tabwrite_tilde_class, (t_method)tabwrite_tilde_set,
gensym("set"), A_SYMBOL, 0);
class_addmethod(tabwrite_tilde_class, (t_method)tabwrite_tilde_stop,
gensym("stop"), 0);
class_addbang(tabwrite_tilde_class, tabwrite_tilde_bang);
class_addfloat(tabwrite_tilde_class, tabwrite_tilde_float);
}
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