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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.
iemlib2 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
/* ------------------------ exp_inc ---------------------------- */
/* ------- exponetial/linear-incremental-bang-counter ---------- */
static t_class *exp_inc_class;
typedef struct _exp_inc
{
t_object x_obj;
t_float x_initialval;
t_float x_currentval;
t_float x_mulfactor;
t_float x_addincrement;
t_float x_min;
t_float x_max;
} t_exp_inc;
static void exp_inc_bang(t_exp_inc *x)
{
outlet_float(x->x_obj.ob_outlet, x->x_currentval);
x->x_currentval = x->x_currentval * x->x_mulfactor + x->x_addincrement;
if(x->x_currentval < x->x_min)
x->x_currentval = x->x_min;
if(x->x_currentval > x->x_max)
x->x_currentval = x->x_max;
}
static void exp_inc_reset(t_exp_inc *x)
{
x->x_currentval = x->x_initialval;
if(x->x_currentval < x->x_min)
x->x_currentval = x->x_min;
if(x->x_currentval > x->x_max)
x->x_currentval = x->x_max;
}
static void exp_inc_float(t_exp_inc *x, t_floatarg f)
{
x->x_initialval = (t_float)f;
x->x_currentval = x->x_initialval;
if(x->x_currentval < x->x_min)
x->x_currentval = x->x_min;
if(x->x_currentval > x->x_max)
x->x_currentval = x->x_max;
}
static void exp_inc_ft1(t_exp_inc *x, t_floatarg f)
{
x->x_mulfactor = 1.0 + 0.01*(t_float)f;
}
static void exp_inc_ft2(t_exp_inc *x, t_floatarg f)
{
x->x_addincrement = (t_float)f;
}
static void exp_inc_ft3(t_exp_inc *x, t_floatarg f)
{
x->x_min = (t_float)f;
if(x->x_currentval < x->x_min)
x->x_currentval = x->x_min;
}
static void exp_inc_ft4(t_exp_inc *x, t_floatarg f)
{
x->x_max = (t_float)f;
if(x->x_currentval > x->x_max)
x->x_currentval = x->x_max;
}
static void exp_inc_list(t_exp_inc *x, t_symbol *s, int ac, t_atom *av)
{
if((ac == 5)&&IS_A_FLOAT(av,0)&&IS_A_FLOAT(av,1)&&IS_A_FLOAT(av,2)
&&IS_A_FLOAT(av,3)&&IS_A_FLOAT(av,4))
{
exp_inc_ft4(x, atom_getfloatarg(4, ac, av));
exp_inc_ft3(x, atom_getfloatarg(3, ac, av));
exp_inc_ft2(x, atom_getfloatarg(2, ac, av));
exp_inc_ft1(x, atom_getfloatarg(1, ac, av));
exp_inc_float(x, atom_getfloatarg(0, ac, av));
}
}
static void *exp_inc_new(t_symbol *s, int ac, t_atom *av)
{
t_exp_inc *x = (t_exp_inc *)pd_new(exp_inc_class);
x->x_currentval = 10.0;
x->x_mulfactor = 1.0;
x->x_addincrement = 0.0;
x->x_min = 0.0;
x->x_max = 1000.0;
if((ac == 5)&&IS_A_FLOAT(av,0)&&IS_A_FLOAT(av,1)&&IS_A_FLOAT(av,2)
&&IS_A_FLOAT(av,3)&&IS_A_FLOAT(av,4))
{
exp_inc_ft4(x, atom_getfloatarg(4, ac, av));
exp_inc_ft3(x, atom_getfloatarg(3, ac, av));
exp_inc_ft2(x, atom_getfloatarg(2, ac, av));
exp_inc_ft1(x, atom_getfloatarg(1, ac, av));
exp_inc_float(x, atom_getfloatarg(0, ac, av));
}
outlet_new(&x->x_obj, &s_float);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft2"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft3"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft4"));
return (x);
}
void exp_inc_setup(void)
{
exp_inc_class = class_new(gensym("exp_inc"), (t_newmethod)exp_inc_new,
0, sizeof(t_exp_inc), 0, A_GIMME, 0);
class_addbang(exp_inc_class, exp_inc_bang);
class_addlist(exp_inc_class, (t_method)exp_inc_list);
class_addmethod(exp_inc_class, (t_method)exp_inc_reset, gensym("reset"), 0);
class_addfloat(exp_inc_class, (t_method)exp_inc_float);
class_addmethod(exp_inc_class, (t_method)exp_inc_ft1, gensym("ft1"), A_FLOAT, 0);
class_addmethod(exp_inc_class, (t_method)exp_inc_ft2, gensym("ft2"), A_FLOAT, 0);
class_addmethod(exp_inc_class, (t_method)exp_inc_ft3, gensym("ft3"), A_FLOAT, 0);
class_addmethod(exp_inc_class, (t_method)exp_inc_ft4, gensym("ft4"), A_FLOAT, 0);
class_sethelpsymbol(exp_inc_class, gensym("iemhelp/help-exp_inc"));
}
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