From d41e58e6cd71fdacdca69ba78c29d42dc7d330d5 Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Wed, 20 Nov 2002 17:46:33 +0000 Subject: This commit was generated by cvs2svn to compensate for changes in r224, which included commits to RCS files with non-trunk default branches. svn path=/trunk/externals/maxlib/; revision=225 --- src/gestalt.c | 109 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 109 insertions(+) create mode 100644 src/gestalt.c (limited to 'src/gestalt.c') diff --git a/src/gestalt.c b/src/gestalt.c new file mode 100644 index 0000000..a0efc39 --- /dev/null +++ b/src/gestalt.c @@ -0,0 +1,109 @@ +/* ------------------------- gestalt ---------------------------------------- */ +/* */ +/* Find the 'gestalt' of the MIDI input. */ +/* Written by Olaf Matthes */ +/* 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 +#include + +static char *version = "gestalt v0.1, written by Olaf Matthes "; + +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); + class_sethelpsymbol(gestalt_class, gensym("maxlib/help-gestalt.pd")); +} + -- cgit v1.2.1