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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_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2006 */
#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
/* -------------------------- tab_min_max ------------------------------ */
typedef struct _tab_min_max
{
t_object x_obj;
int x_size_src1;
int x_offset_src1;
t_float *x_beg_mem_src1;
t_symbol *x_sym_scr1;
void *x_bang_out;
void *x_min_out;
void *x_max_out;
} t_tab_min_max;
static t_class *tab_min_max_class;
static void tab_min_max_src(t_tab_min_max *x, t_symbol *s)
{
x->x_sym_scr1 = s;
}
static void tab_min_max_bang(t_tab_min_max *x)
{
int i, n;
int ok_src;
t_float *vec_src;
t_float min=1.0e37, max=-1.0e37;
ok_src = iem_tab_check_arrays(gensym("tab_min_max"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
if(ok_src)
{
n = x->x_size_src1;
vec_src = x->x_beg_mem_src1;
if(n)
{
for(i=0; i<n; i++)
{
if(vec_src[i] > max)
max = vec_src[i];
if(vec_src[i] < min)
min = vec_src[i];
}
outlet_float(x->x_max_out, max);
outlet_float(x->x_min_out, min);
outlet_bang(x->x_bang_out);
}
}
}
static void tab_min_max_list(t_tab_min_max *x, t_symbol *s, int argc, t_atom *argv)
{
int beg_src;
int i, n;
int ok_src;
t_float *vec_src;
t_float min=1.0e37, max=-1.0e37;
if((argc >= 2) &&
IS_A_FLOAT(argv,0) &&
IS_A_FLOAT(argv,1))
{
beg_src = (int)atom_getintarg(0, argc, argv);
n = (int)atom_getintarg(1, argc, argv);
if(beg_src < 0)
beg_src = 0;
if(n < 0)
n = 0;
ok_src = iem_tab_check_arrays(gensym("tab_min_max"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src+n);
if(ok_src)
{
vec_src = x->x_beg_mem_src1 + beg_src;
if(n)
{
for(i=0; i<n; i++)
{
if(vec_src[i] > max)
max = vec_src[i];
if(vec_src[i] < min)
min = vec_src[i];
}
outlet_float(x->x_max_out, max);
outlet_float(x->x_min_out, min);
outlet_bang(x->x_bang_out);
}
}
}
else
{
post("tab_min_max-ERROR: list need 2 float arguments:");
post(" source_offset + number_of_samples_to_calc_min_max");
}
}
static void tab_min_max_free(t_tab_min_max *x)
{
}
static void *tab_min_max_new(t_symbol *s, int argc, t_atom *argv)
{
t_tab_min_max *x = (t_tab_min_max *)pd_new(tab_min_max_class);
t_symbol *src;
if((argc >= 1) &&
IS_A_SYMBOL(argv,0))
{
src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
}
else
{
post("tab_min_max-ERROR: need 1 symbol argument:");
post(" source_array_name");
return(0);
}
x->x_sym_scr1 = src;
x->x_bang_out = outlet_new(&x->x_obj, &s_bang);
x->x_min_out = outlet_new(&x->x_obj, &s_float);
x->x_max_out = outlet_new(&x->x_obj, &s_float);
return(x);
}
void tab_min_max_setup(void)
{
tab_min_max_class = class_new(gensym("tab_min_max"), (t_newmethod)tab_min_max_new, (t_method)tab_min_max_free,
sizeof(t_tab_min_max), 0, A_GIMME, 0);
class_addbang(tab_min_max_class, (t_method)tab_min_max_bang);
class_addlist(tab_min_max_class, (t_method)tab_min_max_list);
class_addmethod(tab_min_max_class, (t_method)tab_min_max_src, gensym("src"), A_DEFSYMBOL, 0);
class_addmethod(tab_min_max_class, (t_method)tab_min_max_src, gensym("src1"), A_DEFSYMBOL, 0);
// class_sethelpsymbol(tab_min_max_class, gensym("iemhelp2/tab_min_max-help"));
}
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