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/* ------------------------- pitch ------------------------------------------ */
/* */
/* Get a lot of info about an incoming pitch (class, register, interval...). */
/* 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 <stdio.h>
static char *version = "pitch v0.1b, written by Olaf Matthes <olaf.matthes@gmx.de>";
typedef struct pitch
{
t_object x_ob;
t_inlet *x_inpitch; /* inlet for pitch */
t_outlet *x_outpitchval; /* pitch as MIDI note number */
t_outlet *x_outpitchname; /* pitch name, e.g. "C1" */
t_outlet *x_outpitchclass; /* pitch class */
t_outlet *x_outintv; /* interval */
t_outlet *x_outregister; /* register */
t_int x_lastpitch;
} t_pitch;
static void pitch_float(t_pitch *x, t_floatarg f) {
char buf[8];
int r, c, interval = 0, pitch;
char* notes_up[12] = {"C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B"};
char* notes_down[12] = {"C", "Db", "D", "Eb", "E", "F", "Gb", "G", "Ab", "A", "Bb", "B"};
pitch = (t_int)f;
if(pitch < 1) pitch = 0;
if(pitch > 127) pitch = 127;
if(x->x_lastpitch != 0)interval = pitch - x->x_lastpitch;
x->x_lastpitch = pitch;
r = (pitch / 12) - 1;
c = pitch % 12;
if(interval >= 0)
{
sprintf(buf, "%s%d", notes_up[c], r);
}
else
{
sprintf(buf, "%s%d", notes_down[c], r);
}
// post("note: %s %d", notes[c], r);
/* output values from right to left */
outlet_float(x->x_outregister, r);
outlet_float(x->x_outintv, interval);
outlet_float(x->x_outpitchclass, c);
outlet_symbol(x->x_outpitchname, gensym(buf));
outlet_float(x->x_outpitchval, pitch);
}
static t_class *pitch_class;
static void *pitch_new(t_floatarg f)
{
t_pitch *x = (t_pitch *)pd_new(pitch_class);
x->x_inpitch = inlet_new(&x->x_ob, &x->x_ob.ob_pd, gensym("float"), gensym("ft1"));
x->x_outpitchval = outlet_new(&x->x_ob, gensym("float"));
x->x_outpitchname = outlet_new(&x->x_ob, gensym("symbol"));
x->x_outpitchclass = outlet_new(&x->x_ob, gensym("float"));
x->x_outintv = outlet_new(&x->x_ob, gensym("float"));
x->x_outregister = outlet_new(&x->x_ob, gensym("float"));
x->x_lastpitch = f;
#ifndef MAXLIB
post(version);
#endif
return (void *)x;
}
void pitch_setup(void)
{
pitch_class = class_new(gensym("pitch"), (t_newmethod)pitch_new,
0, sizeof(t_pitch), 0, A_DEFFLOAT, 0);
class_addfloat(pitch_class, pitch_float);
class_sethelpsymbol(pitch_class, gensym("maxlib/help-pitch.pd"));
}
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