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/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
iem_dp written by IOhannes m zmoelnig, Thomas Musil, Copyright (c) IEM KUG Graz Austria 1999 - 2007 */
/* double precision library */
#include "m_pd.h"
#include "iemlib.h"
#include "iem_dp.h"
/* -------------------------- tabwrite~~ ------------------------------ */
/* based on miller's tabwrite~ which is part of pd */
static t_class *tabwrite_tilde_tilde_class;
typedef struct _tabwrite_tilde_tilde
{
t_object x_obj;
int x_phase;
int x_nsampsintab;
iemarray_t *x_vec;
t_symbol *x_arrayname;
t_float x_f;
} t_tabwrite_tilde_tilde;
static void *tabwrite_tilde_tilde_new(t_symbol *s)
{
t_tabwrite_tilde_tilde *x = (t_tabwrite_tilde_tilde *)pd_new(tabwrite_tilde_tilde_class);
x->x_phase = 0x7fffffff;
x->x_arrayname = s;
x->x_vec = 0;
x->x_nsampsintab=0;
x->x_f = 0;
return (x);
}
static void tabwrite_tilde_tilde_redraw(t_tabwrite_tilde_tilde *x)
{
t_garray *a = (t_garray *)pd_findbyclass(x->x_arrayname, garray_class);
if(!a)
bug("tabwrite~~_redraw");
else
garray_redraw(a);
}
static t_int *tabwrite_tilde_tilde_perform(t_int *w)
{
t_tabwrite_tilde_tilde *x = (t_tabwrite_tilde_tilde *)(w[1]);
t_sample *in = (t_sample *)(w[2]);
int n = (int)(w[3]);
int phase = x->x_phase, endphase = x->x_nsampsintab;
iemarray_t *vec = x->x_vec;
if(!x->x_vec)
return(w+4);
if(endphase > phase)
{
int nxfer = endphase - phase;
int i;
vec += phase;
if(nxfer > n)
nxfer = n;
phase += nxfer;
for(i=0; i<nxfer; i++)
{
t_sample f = *in++;
/* if(PD_BIGORSMALL(f))
f = 0; */
iemarray_setfloat(vec, i, f);
}
if(phase >= endphase)
{
tabwrite_tilde_tilde_redraw(x);
phase = 0x7fffffff;
}
x->x_phase = phase;
}
else
x->x_phase = 0x7fffffff;
return (w+4);
}
static void tabwrite_tilde_tilde_set(t_tabwrite_tilde_tilde *x, t_symbol *s)
{
t_garray *a;
x->x_arrayname = s;
if(!(a = (t_garray *)pd_findbyclass(x->x_arrayname, garray_class)))
{
if(*s->s_name)
pd_error(x, "tabwrite~~: %s: no such array", x->x_arrayname->s_name);
x->x_vec = 0;
}
else if(!iemarray_getarray(a, &x->x_nsampsintab, &x->x_vec))
{
pd_error(x, "%s: bad template for tabwrite~~", x->x_arrayname->s_name);
x->x_vec = 0;
}
else
garray_usedindsp(a);
}
static void tabwrite_tilde_tilde_dsp(t_tabwrite_tilde_tilde *x, t_signal **sp)
{
tabwrite_tilde_tilde_set(x, x->x_arrayname);
dsp_add(tabwrite_tilde_tilde_perform, 3, x, sp[0]->s_vec, sp[0]->s_n);
}
static void tabwrite_tilde_tilde_bang(t_tabwrite_tilde_tilde *x)
{
x->x_phase = 0;
}
static void tabwrite_tilde_tilde_start(t_tabwrite_tilde_tilde *x, t_symbol *s, int ac, t_atom *av)
{
double fi=0;
int ii=0;
t_float f=0, c=0;
if((ac > 0)&&((av+0)->a_type == A_FLOAT))
c = atom_getfloatarg(0, ac, av);
if((ac > 1)&&((av+1)->a_type == A_FLOAT))
f = atom_getfloatarg(1, ac, av);
fi = iem_dp_calc_sum(c, f);
ii = (int)fi;
x->x_phase = (ii > 0 ? ii : 0);
}
static void tabwrite_tilde_tilde_stop(t_tabwrite_tilde_tilde *x)
{
if(x->x_phase != 0x7fffffff)
{
tabwrite_tilde_tilde_redraw(x);
x->x_phase = 0x7fffffff;
}
}
void tabwrite_tilde_tilde_setup(void)
{
tabwrite_tilde_tilde_class = class_new(gensym("tabwrite~~"),
(t_newmethod)tabwrite_tilde_tilde_new, 0,
sizeof(t_tabwrite_tilde_tilde), 0, A_DEFSYM, 0);
CLASS_MAINSIGNALIN(tabwrite_tilde_tilde_class, t_tabwrite_tilde_tilde, x_f);
class_addmethod(tabwrite_tilde_tilde_class, (t_method)tabwrite_tilde_tilde_dsp, gensym("dsp"), 0);
class_addmethod(tabwrite_tilde_tilde_class, (t_method)tabwrite_tilde_tilde_set, gensym("set"), A_SYMBOL, 0);
class_addmethod(tabwrite_tilde_tilde_class, (t_method)tabwrite_tilde_tilde_start, gensym("start"), A_GIMME, 0);
class_addmethod(tabwrite_tilde_tilde_class, (t_method)tabwrite_tilde_tilde_stop, gensym("stop"), 0);
class_addbang(tabwrite_tilde_tilde_class, tabwrite_tilde_tilde_bang);
}
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