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/* ------------------------- gestalt ---------------------------------------- */
/* */
/* Find the 'gestalt' of the MIDI input. */
/* Written by Olaf Matthes <olaf.matthes@gmx.de> */
/* Get source at http://www.akustische-kunst.org/puredata/maxlib/ */
/* */
/* 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. */
/* */
/* 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. */
/* */
/* ---------------------------------------------------------------------------- */
#include "m_pd.h"
#include <math.h>
#include <stdio.h>
static char *version = "gestalt v0.1, written by Olaf Matthes <olaf.matthes@gmx.de>";
typedef struct gestalt
{
t_object x_ob;
t_inlet *x_invelocity; /* inlet for velocity */
t_outlet *x_outgestalt; /* calculated 'gestalt'-value */
t_float x_lastpitch;
t_float x_velocity;
t_float x_reftime;
double x_lastontime;
} t_gestalt;
static void gestalt_ft1(t_gestalt *x, t_floatarg f)
{
x->x_velocity = f;
}
static void gestalt_ft2(t_gestalt *x, t_floatarg f)
{
if(f > 0.0) x->x_reftime = f;
}
static void gestalt_float(t_gestalt *x, t_floatarg f)
{
int interval, pitch, gestalt;
double ontime = clock_getlogicaltime();
if(x->x_velocity) /* only process note-ons */
{
pitch = (t_int)f;
if(pitch < 1) pitch = 0;
if(pitch > 127) pitch = 127;
interval = abs(pitch - x->x_lastpitch);
gestalt = (clock_gettimesince(x->x_lastontime)/x->x_reftime) + interval;
x->x_lastpitch = pitch;
x->x_lastontime = ontime;
/* output values from right to left */
outlet_float(x->x_outgestalt, gestalt);
}
}
static t_class *gestalt_class;
static void *gestalt_new(t_floatarg f)
{
t_gestalt *x = (t_gestalt *)pd_new(gestalt_class);
inlet_new(&x->x_ob, &x->x_ob.ob_pd, gensym("float"), gensym("ft1"));
inlet_new(&x->x_ob, &x->x_ob.ob_pd, gensym("float"), gensym("ft2"));
x->x_outgestalt = outlet_new(&x->x_ob, gensym("float"));
x->x_lastontime = clock_getlogicaltime();
x->x_reftime = f;
if(x->x_reftime < 1) x->x_reftime = 1;
#ifndef MAXLIB
post(version);
#endif
return (void *)x;
}
void gestalt_setup(void)
{
gestalt_class = class_new(gensym("gestalt"), (t_newmethod)gestalt_new,
0, sizeof(t_gestalt), 0, A_DEFFLOAT, 0);
class_addfloat(gestalt_class, gestalt_float);
class_addmethod(gestalt_class, (t_method)gestalt_ft1, gensym("ft1"), A_FLOAT, 0);
class_addmethod(gestalt_class, (t_method)gestalt_ft2, gensym("ft2"), A_FLOAT, 0);
}
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