From 8b0873392ad0db55fdb9d0cdfc670366bc96a9c9 Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Mon, 26 Apr 2010 03:10:47 +0000 Subject: converted maxlib to use libdir template, in preparations for debianizing it svn path=/trunk/externals/maxlib/; revision=13476 --- ignore.c | 119 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 119 insertions(+) create mode 100644 ignore.c (limited to 'ignore.c') diff --git a/ignore.c b/ignore.c new file mode 100644 index 0000000..4dda16d --- /dev/null +++ b/ignore.c @@ -0,0 +1,119 @@ +/* ------------------------- ignore ------------------------------------------- */ +/* */ +/* Ignores input that is followed by next value faster than N ms. */ +/* 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" + +static char *version = "ignore v0.1, written by Olaf Matthes "; + +typedef struct ignore +{ + t_object x_ob; + t_clock *x_clock; + t_inlet *x_intime; + t_outlet *x_outfloat; + t_float x_input; + t_float x_lastinput; + t_int x_limit; /* indicates if input is 'blocked' (1) */ + t_int x_time; /* the time in ms */ +} t_ignore; + +static void ignore_tick(t_ignore *x) +{ + x->x_limit = 0; + /* output in case nothing has changed */ + if(x->x_lastinput == x->x_input) + outlet_float(x->x_outfloat, x->x_lastinput); +} + +static void ignore_float(t_ignore *x, t_floatarg f) +{ + x->x_input = f; + if(!x->x_limit) + { + x->x_limit = 1; /* ignore input within next N ms */ + clock_delay(x->x_clock, x->x_time); /* start clock */ + } + else /* ignore / start clock again */ + { + x->x_lastinput = x->x_input; /* save current as last valid value */ + clock_unset(x->x_clock); /* throw out last clock */ + clock_delay(x->x_clock, x->x_time); /* start new clock */ + } +} + +static void ignore_time(t_ignore *x, t_floatarg f) +{ + x->x_time = (t_int)f; +} + +static void ignore_reset(t_ignore *x) +{ + x->x_limit = 0; + post("ignore: reset"); +} + +static void ignore_free(t_ignore *x) +{ + clock_free(x->x_clock); +} + +static t_class *ignore_class; + +static void *ignore_new(t_floatarg f) +{ + t_ignore *x = (t_ignore *)pd_new(ignore_class); + x->x_intime = inlet_new(&x->x_ob, &x->x_ob.ob_pd, gensym("float"), gensym("time")); + x->x_outfloat = outlet_new(&x->x_ob, gensym("float")); + x->x_clock = clock_new(x, (t_method)ignore_tick); + + x->x_time = (t_int)f; + x->x_lastinput = 0; + + return (void *)x; +} + +#ifndef MAXLIB +void ignore_setup(void) +{ + ignore_class = class_new(gensym("ignore"), (t_newmethod)ignore_new, + (t_method)ignore_free, sizeof(t_ignore), 0, A_DEFFLOAT, 0); + class_addmethod(ignore_class, (t_method)ignore_reset, gensym("reset"), 0); + class_addmethod(ignore_class, (t_method)ignore_time, gensym("time"), A_FLOAT, 0); + class_addfloat(ignore_class, ignore_float); + + post(version); +} +#else +void maxlib_ignore_setup(void) +{ + ignore_class = class_new(gensym("maxlib_ignore"), (t_newmethod)ignore_new, + (t_method)ignore_free, sizeof(t_ignore), 0, A_DEFFLOAT, 0); + class_addcreator((t_newmethod)ignore_new, gensym("ignore"), A_DEFFLOAT, 0); + class_addmethod(ignore_class, (t_method)ignore_reset, gensym("reset"), 0); + class_addmethod(ignore_class, (t_method)ignore_time, gensym("time"), A_FLOAT, 0); + class_addfloat(ignore_class, ignore_float); + class_sethelpsymbol(ignore_class, gensym("maxlib/ignore-help.pd")); +} +#endif + -- cgit v1.2.1