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/* Copyright (c) 2002 Yves Degoyon. */
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL */
/* WARRANTIES, see the file, "COPYING" in this distribution. */
/* */
/* beatify~ -- modulates an audio signal amplitude, */
/* making it sounding like drums (sometimes) */
/* */
/* This program is free software; you can redistribute it and/or */
/* modify it under the terms of the GNU General Public License */
/* as published by the Free Software Foundation; either version 2 */
/* of the License, or (at your option) any later version. */
/* */
/* See file LICENSE for further informations on licensing terms. */
/* */
/* This program is distributed in the hope that it will be useful, */
/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
/* GNU General Public License for more details. */
/* */
/* You should have received a copy of the GNU General Public License */
/* along with this program; if not, write to the Free Software */
/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* */
/* Based on PureData by Miller Puckette and others. */
/* */
/* Made while listening to : */
/* */
/* "We wanted succes" */
/* "We got lost into the night" */
/* "Take life as it comes" */
/* PJ Harvey -- We Float */
/* ---------------------------------------------------------------------------- */
#include "m_pd.h"
#include <stdlib.h>
#include <math.h>
static char *beatify_version = "beatify~: an audio beatify, version 0.1 (ydegoyon@free.fr)";
typedef struct _beatify
{
t_object x_obj;
t_float x_attack;
t_float x_sustain;
t_float x_decay;
t_float x_size;
t_float x_gamplitude;
t_float x_vol;
t_int x_current;
t_float x_f;
} t_beatify;
static t_class *beatify_class;
static void beatify_attack(t_beatify *x, t_floatarg fattack )
{
if (fattack < 1.0)
{
x->x_attack = 1.0;
}
else
{
x->x_attack = fattack;
}
}
static void beatify_sustain(t_beatify *x, t_floatarg fsustain )
{
if (fsustain < 0.0)
{
x->x_sustain = 0.0;
}
else
{
x->x_sustain = fsustain;
}
}
static void beatify_decay(t_beatify *x, t_floatarg fdecay )
{
if (fdecay < 1.0)
{
x->x_decay = 1.0;
}
else
{
x->x_decay = fdecay;
}
}
static void beatify_size(t_beatify *x, t_floatarg fsize )
{
if (fsize < 100.0)
{
x->x_size = 100.0;
}
else
{
x->x_size = fsize;
}
}
static void beatify_gamplitude(t_beatify *x, t_floatarg fgamplitude )
{
if (fgamplitude < 0.0) {
x->x_gamplitude = 0.0;
} else if (fgamplitude > 1.0) {
x->x_gamplitude = 1.0;
} else {
x->x_gamplitude = fgamplitude;
}
}
static void *beatify_new(void)
{
t_beatify *x = (t_beatify *)pd_new(beatify_class);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("attack"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("sustain"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("decay"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("size"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("gamplitude"));
x->x_attack = 10;
x->x_decay = 50;
x->x_sustain = 2;
x->x_size = 700;
x->x_gamplitude = 0.5;
x->x_current = x->x_size;
outlet_new(&x->x_obj, &s_signal);
return (x);
}
static t_int *beatify_perform(t_int *w)
{
t_float *in = (t_float *)(w[1]);
t_float *out = (t_float *)(w[2]);
t_int n = (int)(w[3]);
t_beatify *x = (t_beatify*)(w[4]);
t_float adelta = 0., ddelta = 0.;
while (n--) {
if ( x->x_current>=x->x_size )
{
adelta = (x->x_gamplitude-x->x_vol)/x->x_attack;
ddelta = x->x_gamplitude/x->x_decay;
x->x_current = 0;
}
if ( x->x_current<x->x_attack ) x->x_vol+= adelta;
if ( x->x_current>x->x_attack+x->x_sustain && x->x_current<x->x_attack+x->x_sustain+x->x_decay )
{
x->x_vol-= ddelta;
}
x->x_current++;
*(out) = *(in)*x->x_vol;
out++; in++;
}
return (w+5);
}
static void beatify_dsp(t_beatify *x, t_signal **sp)
{
dsp_add(beatify_perform, 4, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n, x );
}
void beatify_tilde_setup(void)
{
post( beatify_version );
beatify_class = class_new(gensym("beatify~"), (t_newmethod)beatify_new, 0,
sizeof(t_beatify), 0, 0);
CLASS_MAINSIGNALIN( beatify_class, t_beatify, x_f );
class_addmethod(beatify_class, (t_method)beatify_dsp, gensym("dsp"), 0);
class_addmethod(beatify_class, (t_method)beatify_attack, gensym("attack"), A_FLOAT, 0);
class_addmethod(beatify_class, (t_method)beatify_sustain, gensym("sustain"), A_FLOAT, 0);
class_addmethod(beatify_class, (t_method)beatify_decay, gensym("decay"), A_FLOAT, 0);
class_addmethod(beatify_class, (t_method)beatify_size, gensym("size"), A_FLOAT, 0);
class_addmethod(beatify_class, (t_method)beatify_gamplitude, gensym("gamplitude"), A_FLOAT, 0);
}
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