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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. */
#include <string.h>
#include "m_pd.h"
#include "common/grow.h"
#define FUNNEL_MINSLOTS 2
#define FUNNEL_INISIZE 32 /* LATER rethink */
#define FUNNEL_MAXSIZE 256
typedef struct _funnel
{
t_object x_ob;
int x_nslots;
int x_nproxies; /* as requested (and allocated) */
t_pd **x_proxies;
} t_funnel;
typedef struct _funnel_proxy
{
t_object p_ob;
t_outlet *p_out; /* master outlet (the same value for each slot) */
int p_id; /* adjusted according to an offset argument */
t_float p_value;
int p_size; /* as allocated */
t_atom *p_message;
t_atom p_messini[FUNNEL_INISIZE];
int p_entered;
} t_funnel_proxy;
static t_class *funnel_class;
static t_class *funnel_proxy_class;
static void funnel_proxy_bang(t_funnel_proxy *x)
{
t_atom at[2];
SETFLOAT(&at[0], x->p_id);
SETFLOAT(&at[1], x->p_value);
outlet_list(x->p_out, &s_list, 2, at);
}
static void funnel_proxy_float(t_funnel_proxy *x, t_float f)
{
x->p_value = f;
funnel_proxy_bang(x);
}
static void funnel_proxy_list(t_funnel_proxy *x,
t_symbol *s, int ac, t_atom *av)
{
int reentered = x->p_entered;
int prealloc = !reentered;
int ntotal = ac + 1;
x->p_entered = 1;
if (prealloc && ntotal > x->p_size)
{
if (ntotal > FUNNEL_MAXSIZE)
prealloc = 0;
else
{
x->p_message = grow_nodata(&ntotal, &x->p_size, x->p_message,
FUNNEL_INISIZE, x->p_messini,
sizeof(*x->p_message));
ac = ntotal - 1;
}
}
/* LATER consider a compatibility warning if av->a_type != A_FLOAT */
x->p_value = ((ac && av->a_type == A_FLOAT) ? av->a_w.w_float : 0);
if (prealloc)
{
SETFLOAT(x->p_message, x->p_id);
if (ac)
memcpy(x->p_message + 1, av, ac * sizeof(*x->p_message));
outlet_list(x->p_out, &s_list, ntotal, x->p_message);
}
else
{
/* LATER consider using the stack if ntotal <= MAXSTACK */
t_atom *buf = getbytes(ntotal * sizeof(*buf));
if (buf)
{
SETFLOAT(buf, x->p_id);
if (ac)
memcpy(buf + 1, av, ac * sizeof(*buf));
outlet_list(x->p_out, &s_list, ntotal, buf);
freebytes(buf, ntotal * sizeof(*buf));
}
}
if (!reentered) x->p_entered = 0;
}
static void funnel_bang(t_funnel *x)
{
funnel_proxy_bang((t_funnel_proxy *)x->x_proxies[0]);
}
static void funnel_float(t_funnel *x, t_float f)
{
funnel_proxy_float((t_funnel_proxy *)x->x_proxies[0], f);
}
static void funnel_list(t_funnel *x, t_symbol *s, int ac, t_atom *av)
{
funnel_proxy_list((t_funnel_proxy *)x->x_proxies[0], s, ac, av);
}
static void funnel_free(t_funnel *x)
{
if (x->x_proxies)
{
int i = x->x_nslots;
while (i--)
{
t_funnel_proxy *y = (t_funnel_proxy *)x->x_proxies[i];
if (y->p_message != y->p_messini)
freebytes(y->p_message, y->p_size * sizeof(*y->p_message));
pd_free((t_pd *)y);
}
freebytes(x->x_proxies, x->x_nproxies * sizeof(*x->x_proxies));
}
}
static void *funnel_new(t_floatarg f1, t_floatarg f2)
{
t_funnel *x;
int i, nslots, nproxies = (int)f1;
int offset = (int)f2;
t_outlet *out;
t_pd **proxies;
if (nproxies < 1) /* CHECKED: one-slot funnel may be created */
nproxies = FUNNEL_MINSLOTS;
if (!(proxies = (t_pd **)getbytes(nproxies * sizeof(*proxies))))
return (0);
for (nslots = 0; nslots < nproxies; nslots++)
if (!(proxies[nslots] = pd_new(funnel_proxy_class))) break;
if (!nslots)
{
freebytes(proxies, nproxies * sizeof(*proxies));
return (0);
}
x = (t_funnel *)pd_new(funnel_class);
x->x_nslots = nslots;
x->x_nproxies = nproxies;
x->x_proxies = proxies;
out = outlet_new((t_object *)x, &s_list);
for (i = 0; i < nslots; i++)
{
t_funnel_proxy *y = (t_funnel_proxy *)proxies[i];
y->p_out = out;
y->p_id = offset++;
y->p_value = 0;
y->p_size = FUNNEL_INISIZE;
y->p_message = y->p_messini;
y->p_entered = 0;
if (i) inlet_new((t_object *)x, (t_pd *)y, 0, 0);
}
return (x);
}
void funnel_setup(void)
{
funnel_class = class_new(gensym("funnel"),
(t_newmethod)funnel_new,
(t_method)funnel_free,
sizeof(t_funnel), 0, A_DEFFLOAT, A_DEFFLOAT, 0);
class_addbang(funnel_class, funnel_bang);
class_addfloat(funnel_class, funnel_float);
class_addlist(funnel_class, funnel_list);
/* CHECKED: funnel doesn't understand symbol, anything */
funnel_proxy_class = class_new(gensym("_funnel_proxy"), 0, 0,
sizeof(t_funnel_proxy),
CLASS_PD | CLASS_NOINLET, 0);
class_addbang(funnel_proxy_class, funnel_proxy_bang);
class_addfloat(funnel_proxy_class, funnel_proxy_float);
class_addlist(funnel_proxy_class, funnel_proxy_list);
/* CHECKED: funnel doesn't understand symbol, anything */
}
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