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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 "m_pd.h"
#include "common/grow.h"
#include "sickle/sic.h"
#define CLICK_INISIZE 16 /* LATER rethink */
typedef struct _click
{
t_sic x_sic;
int x_nsamples; /* as used */
int x_bufsize; /* as allocated */
t_float *x_buffer;
t_float x_bufini[CLICK_INISIZE];
int x_nleft;
t_float *x_head;
} t_click;
static t_class *click_class;
static void click_bang(t_click *x)
{
x->x_nleft = x->x_nsamples;
x->x_head = x->x_buffer;
}
static void click_set(t_click *x, t_symbol *s, int ac, t_atom *av)
{
int i, nsamples = 0;
t_atom *ap;
t_float *bp;
for (i = 0, ap = av; i < ac; i++, ap++)
{
if (ap->a_type == A_FLOAT) nsamples++;
/* CHECKED no restrictions (refman's error about 0.0-1.0 range)
CHECKED nonnumeric atoms silently ignored */
}
if (nsamples > x->x_bufsize)
x->x_buffer = grow_nodata(&nsamples, &x->x_bufsize, x->x_buffer,
CLICK_INISIZE, x->x_bufini,
sizeof(*x->x_buffer));
if (nsamples)
{
x->x_nsamples = nsamples;
bp = x->x_buffer;
while (nsamples--) *bp++ = av++->a_w.w_float;
}
else x->x_nsamples = 0; /* CHECKED, need to 'set 1' explicitly */
x->x_nleft = 0;
x->x_head = x->x_buffer;
}
static t_int *click_perform(t_int *w)
{
t_click *x = (t_click *)(w[1]);
int nblock = (int)(w[2]);
t_float *out = (t_float *)(w[3]);
if (x->x_nleft)
{
int nleft = x->x_nleft;
t_float *head = x->x_head;
if (nleft >= nblock)
{
x->x_nleft -= nblock;
while (nblock--) *out++ = *head++;
x->x_head = head;
}
else
{
nblock -= nleft;
while (nleft--) *out++ = *head++;
while (nblock--) *out++ = 0.;
x->x_nleft = 0;
x->x_head = x->x_buffer;
}
}
else while (nblock--) *out++ = 0.;
return (w + 4);
}
static void click_dsp(t_click *x, t_signal **sp)
{
dsp_add(click_perform, 3, x, sp[0]->s_n, sp[0]->s_vec);
}
static void click_free(t_click *x)
{
if (x->x_buffer != x->x_bufini)
freebytes(x->x_buffer, x->x_bufsize * sizeof(*x->x_buffer));
}
static void *click_new(t_symbol *s, int ac, t_atom *av)
{
t_click *x = (t_click *)pd_new(click_class);
x->x_nsamples = 1; /* CHECKED */
x->x_bufsize = CLICK_INISIZE;
x->x_buffer = x->x_bufini;
x->x_buffer[0] = 1.; /* CHECKED */
x->x_nleft = 0;
x->x_head = x->x_buffer;
outlet_new((t_object *)x, &s_signal);
if (ac) click_set(x, 0, ac, av);
return (x);
}
void click_tilde_setup(void)
{
click_class = class_new(gensym("click~"),
(t_newmethod)click_new,
(t_method)click_free,
sizeof(t_click), 0, A_GIMME, 0);
sic_setup(click_class, click_dsp, SIC_NOMAINSIGNALIN);
class_addbang(click_class, click_bang);
class_addmethod(click_class, (t_method)click_set,
gensym("set"), A_GIMME, 0);
}
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