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/* Copyright (c) 2002-2003 krzYszcz and others.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
/* This is a modified version of Joseph A. Sarlo's code.
The most important changes are listed in "pd-lib-notes.txt" file. */
#include "m_pd.h"
#include "common/loud.h"
//#define CYCLE_USEEVENTNO
#define CYCLE_MINOUTS 1
#define CYCLE_MAXOUTS 100 /* CHECKED */
#define CYCLE_DEFOUTS 1
typedef struct _cycle
{
t_object x_ob;
int x_eventmode;
#ifdef CYCLE_USEEVENTNO
int x_lastevent;
#else
double x_lastevent;
#endif
int x_index;
int x_nouts;
t_outlet **x_outs;
} t_cycle;
static t_class *cycle_class;
static int cycle_isnextevent(t_cycle *x)
{
#ifdef CYCLE_USEEVENTNO
int nextevent = sys_geteventno();
#else
double nextevent = clock_getlogicaltime();
#endif
if (x->x_lastevent == nextevent)
return (0);
else
{
x->x_lastevent = nextevent;
return (1);
}
}
static void cycle_bang(t_cycle *x)
{
/* CHECKED: bangs ignored (but message 'bang' is an error -- why?) */
}
static void cycle_float(t_cycle *x, t_float f)
{
if ((x->x_eventmode && cycle_isnextevent(x)) || x->x_index >= x->x_nouts)
x->x_index = 0;
outlet_float(x->x_outs[x->x_index++], f);
}
static void cycle_symbol(t_cycle *x, t_symbol *s)
{
if ((x->x_eventmode && cycle_isnextevent(x)) || x->x_index >= x->x_nouts)
x->x_index = 0;
outlet_symbol(x->x_outs[x->x_index++], s);
}
/* LATER gpointer */
static void cycle_list(t_cycle *x, t_symbol *s, int ac, t_atom *av)
{
if ((x->x_eventmode && cycle_isnextevent(x)) || x->x_index >= x->x_nouts)
x->x_index = 0;
while (ac--)
{
if (av->a_type == A_FLOAT)
outlet_float(x->x_outs[x->x_index], av->a_w.w_float);
else if (av->a_type == A_SYMBOL)
outlet_symbol(x->x_outs[x->x_index], av->a_w.w_symbol);
av++;
if (++(x->x_index) >= x->x_nouts) x->x_index = 0;
}
}
static void cycle_anything(t_cycle *x, t_symbol *s, int ac, t_atom *av)
{
if (s && s != &s_) cycle_symbol(x, s); /* CHECKED */
cycle_list(x, 0, ac, av);
}
static void cycle_set(t_cycle *x, t_floatarg f)
{
int i = (int)f;
if (i >= 0 && i < x->x_nouts) x->x_index = i;
}
static void cycle_thresh(t_cycle *x, t_floatarg f)
{
if (x->x_eventmode = (f != 0))
#ifdef CYCLE_USEEVENTNO
x->x_lastevent = sys_geteventno();
#else
x->x_lastevent = clock_getlogicaltime();
#endif
}
static void cycle_free(t_cycle *x)
{
if (x->x_outs)
freebytes(x->x_outs, x->x_nouts * sizeof(*x->x_outs));
}
static void *cycle_new(t_floatarg f1, t_floatarg f2)
{
t_cycle *x;
int i, nouts = (int)f1;
t_outlet **outs;
if (nouts < CYCLE_MINOUTS)
nouts = CYCLE_DEFOUTS;
if (nouts > CYCLE_MAXOUTS)
{
loud_incompatible_max(cycle_class, CYCLE_MAXOUTS, "outlets");
/* CHECKED: max clips with an error:
``perhaps you were trying to make an oscillator?'' */
}
if (!(outs = (t_outlet **)getbytes(nouts * sizeof(*outs))))
return (0);
x = (t_cycle *)pd_new(cycle_class);
x->x_nouts = nouts;
x->x_outs = outs;
x->x_index = 0;
for (i = 0; i < nouts; i++)
x->x_outs[i] = outlet_new((t_object *)x, &s_anything);
cycle_thresh(x, f2);
return (x);
}
void cycle_setup(void)
{
cycle_class = class_new(gensym("cycle"),
(t_newmethod)cycle_new,
(t_method)cycle_free,
sizeof(t_cycle), 0, A_DEFFLOAT, A_DEFFLOAT, 0);
class_addbang(cycle_class, cycle_bang);
class_addfloat(cycle_class, cycle_float);
class_addsymbol(cycle_class, cycle_symbol);
class_addlist(cycle_class, cycle_list);
class_addanything(cycle_class, cycle_anything);
class_addmethod(cycle_class, (t_method)cycle_set,
gensym("set"), A_FLOAT, 0); /* CHECKED: arg required */
class_addmethod(cycle_class, (t_method)cycle_thresh,
gensym("thresh"), A_FLOAT, 0);
}
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