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#include "m_pd.h"
//#include <string.h>
#define IS_A_SYMBOL(atom,index) ((atom+index)->a_type == A_SYMBOL)
#define IS_A_FLOAT(atom,index) ((atom+index)->a_type == A_FLOAT)
// The maxsize should match the maximum value of an int (2147483647)
#define MAXSIZE 2147483647
//#define MAXSIZE 20
static t_class *list_accum_class;
typedef struct _list_accum {
t_object x_obj;
int got_data;
t_outlet* outlet1;
t_outlet* outlet2;
int mem_size;
int ac;
t_atom* av;
} t_list_accum;
// Bang: output accumulated list
static void list_accum_bang(t_list_accum *x)
{
if ( x->got_data) {
x->got_data = 0;
outlet_list(x->outlet1,&s_list,x->ac,x->av);
} else {
outlet_bang(x->outlet2);
}
}
void list_accum_clear(t_list_accum *x) {
x->got_data = 0;
}
void list_accum_anything(t_list_accum *x, t_symbol* s, int ac, t_atom* av)
{
// COPY
if ( !x->got_data ) x->ac =0;
x->got_data = 1;
int do_selector = ( s != &s_list && s != &s_float && s != &s_symbol );
int ac_prev = x->ac;
unsigned int ac_new = x->ac + ac + do_selector; //One more for the selector
if ( ac_new < MAXSIZE ) {
x->ac = ac_new;
// Resize memory if required and add 10 atoms just in case
if(x->ac > x->mem_size) {
x->av = resizebytes(x->av, x->mem_size * sizeof(*(x->av)),
(10 + x->ac) * sizeof(*(x->av)));
x->mem_size = 10 + x->ac;
}
t_atom* dst = x->av + ac_prev; //Offset destination by current size
// Copy selector
if ( do_selector ) {
SETSYMBOL(dst, s);
dst++;
}
// Copy atoms
while(ac--) *dst++ = *av++;
} else {
pd_error(x, "[list_accum]: Input was ignored because maximum size(%d) would be exceeded.", MAXSIZE);
}
}
static void list_accum_free(t_list_accum *x)
{
freebytes(x->av, x->mem_size * sizeof(*(x->av)));
}
void *list_accum_new(t_symbol *s, int argc, t_atom *argv)
{
t_list_accum *x = (t_list_accum *)pd_new(list_accum_class);
//x->iterating = 0;
/*
x->mode = 0;
if (argc && IS_A_SYMBOL(argv,0) ) {
t_symbol* type = atom_getsymbol(argv);
if (type->s_name == gensym("prepend") ) {
x->mode = 1;
}
}
*/
// Initialize memory
x->mem_size = 10;
x->ac = 0;
x->av = getbytes(x->mem_size * sizeof(*(x->av)));
x->outlet1 = outlet_new(&x->x_obj, &s_list);
x->outlet2 = outlet_new(&x->x_obj, &s_bang);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("bang"), gensym("clear"));
return (void *)x;
}
void list_accum_setup(void) {
list_accum_class = class_new(gensym("list_accum"),
(t_newmethod)list_accum_new,
(t_method)list_accum_free, sizeof(t_list_accum),
CLASS_DEFAULT,
A_GIMME, 0);
class_addbang (list_accum_class, list_accum_bang);
class_addmethod(list_accum_class, (t_method)list_accum_clear, gensym("clear"),0);
class_addanything (list_accum_class, list_accum_anything);
//class_addlist (list_accum_class, list_accum_list);
}
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