rockbox/apps/plugins/pdbox/PDa/intern/dbtorms~.c
Peter D'Hoye 0d4560cb03 Accept FS #10244 by Wincent Balin: more pdbox work done for GSoC; also some keyword and line-ending fixes by me
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21626 a1c6a512-1295-4272-9138-f99709370657
2009-07-03 22:16:11 +00:00

62 lines
1.3 KiB
C

#ifdef ROCKBOX
#include "plugin.h"
#include "pdbox.h"
#endif
#include <m_pd.h>
#include <m_fixed.h>
#define LOGTEN 2.302585092994
typedef struct dbtorms_tilde
{
t_object x_obj;
float x_f;
} t_dbtorms_tilde;
t_class *dbtorms_tilde_class;
static void *dbtorms_tilde_new(void)
{
t_dbtorms_tilde *x = (t_dbtorms_tilde *)pd_new(dbtorms_tilde_class);
outlet_new(&x->x_obj, gensym("signal"));
x->x_f = 0;
return (x);
}
static t_int *dbtorms_tilde_perform(t_int *w)
{
float *in = *(t_float **)(w+1), *out = *(t_float **)(w+2);
t_int n = *(t_int *)(w+3);
for (; n--; in++, out++)
{
float f = *in;
if (f <= 0) *out = 0;
else
{
if (f > 485)
f = 485;
*out = exp((LOGTEN * 0.05) * (f-100.));
}
}
return (w + 4);
}
static void dbtorms_tilde_dsp(t_dbtorms_tilde *x, t_signal **sp)
{
#ifdef ROCKBOX
(void) x;
#endif
post("warning: %s not usable yet",__FUNCTION__);
dsp_add(dbtorms_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
}
void dbtorms_tilde_setup(void)
{
dbtorms_tilde_class = class_new(gensym("dbtorms~"), (t_newmethod)dbtorms_tilde_new, 0,
sizeof(t_dbtorms_tilde), 0, 0);
CLASS_MAINSIGNALIN(dbtorms_tilde_class, t_dbtorms_tilde, x_f);
class_addmethod(dbtorms_tilde_class, (t_method)dbtorms_tilde_dsp, gensym("dsp"), 0);
}