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/******************************************************
*
* zexy - implementation file
*
* copyleft (c) IOhannes m zmölnig
*
* 1999:forum::für::umläute:2004
*
* institute of electronic music and acoustics (iem)
*
******************************************************
*
* license: GNU General Public License v.2
*
******************************************************/
#include "zexy.h"
/* ------------------------ pack~ ----------------------------- */
/* pack the signal-vector to a float-package */
static t_class *sigpack_class;
typedef struct _sigpack
{
t_object x_obj;
int vector_length;
t_atom *buffer;
} t_sigpack;
static t_int *sigpack_perform(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_sigpack *x = (t_sigpack *)w[2];
int n = (int)(w[3]), i = 0;
t_atom *buf = x->buffer;
while (n--) {
SETFLOAT(&buf[i], *in++);
i++;
}
outlet_list(x->x_obj.ob_outlet, &s_list, x->vector_length, x->buffer);
return (w+4);
}
static void sigpack_dsp(t_sigpack *x, t_signal **sp)
{
if (x->vector_length != sp[0]->s_n) {
freebytes(x->buffer, x->vector_length * sizeof(t_atom));
x->vector_length = sp[0]->s_n;
x->buffer = (t_atom *)getbytes(x->vector_length * sizeof(t_atom));
}
dsp_add(sigpack_perform, 3, sp[0]->s_vec, x, sp[0]->s_n);
}
static void *sigpack_new(void)
{
t_sigpack *x = (t_sigpack *)pd_new(sigpack_class);
x->vector_length = 0;
x->buffer = 0;
outlet_new(&x->x_obj, gensym("list"));
return (x);
}
static void sigpack_help(void)
{
post("pack~\t:: outputs the signal-vectors as float-packages");
}
void pack_tilde_setup(void)
{
sigpack_class = class_new(gensym("pack~"), (t_newmethod)sigpack_new, 0,
sizeof(t_sigpack), 0, A_DEFFLOAT, 0);
class_addmethod(sigpack_class, nullfn, gensym("signal"), 0);
class_addmethod(sigpack_class, (t_method)sigpack_dsp, gensym("dsp"), 0);
class_addmethod(sigpack_class, (t_method)sigpack_help, gensym("help"), 0);
class_sethelpsymbol(sigpack_class, gensym("zexy/pack~"));
zexy_register("pack~");
}
void z_pack__setup(void)
{
pack_tilde_setup();
}
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