From 71b83fc040b848c98c5065d95ecbc72b0b4f8943 Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Thu, 17 Jan 2013 22:54:00 +0000 Subject: merging maxlib v1.5.5 from branches/pd-extended/0.43 svn path=/trunk/externals/maxlib/; revision=16897 --- limit.c | 250 ++++++++++++++++++++++++++++++++-------------------------------- 1 file changed, 125 insertions(+), 125 deletions(-) (limited to 'limit.c') diff --git a/limit.c b/limit.c index cf3d97a..cfd79ea 100644 --- a/limit.c +++ b/limit.c @@ -1,125 +1,125 @@ -/* ------------------------- limit ------------------------------------------ */ -/* */ -/* limits input to lie within an output range. */ -/* 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 = "limit v0.1, written by Olaf Matthes "; - -typedef struct limit -{ - t_object x_ob; - t_float x_ol; /* low border of output range */ - t_float x_oh; /* high border of output range */ - t_float x_ratio; /* 'compression ratio' */ - t_outlet *x_outlet1; /* result */ - t_float x_f; -} t_limit; - -static void limit_float(t_limit *x, t_floatarg f) -{ - if(x->x_oh < x->x_ol) /* swap values */ - { - int i = x->x_oh; - x->x_oh = x->x_ol; - x->x_ol = i; - } - if(x->x_ratio == 0) /* 'clip' mode */ - { - if(f > x->x_oh)f = x->x_oh; - else if(f < x->x_ol)f = x->x_ol; - } - else /* 'compress' mode */ - { - int diff; - if(f > x->x_oh) - { - diff = f - x->x_oh; - f = x->x_oh + (diff / x->x_ratio); - } - else if(f < x->x_ol) - { - diff = x->x_ol - f; - f = x->x_ol - (diff / x->x_ratio); - } - } - outlet_float(x->x_outlet1, f); - x->x_f = f; -} - -static void limit_bang(t_limit *x) -{ - limit_float(x, x->x_f); /* recalculate result */ -} - -static t_class *limit_class; - -static void *limit_new(t_floatarg fol, t_floatarg foh, t_floatarg fr) -{ - t_limit *x = (t_limit *)pd_new(limit_class); - - floatinlet_new(&x->x_ob, &x->x_ol); - floatinlet_new(&x->x_ob, &x->x_oh); - floatinlet_new(&x->x_ob, &x->x_ratio); - - x->x_outlet1 = outlet_new(&x->x_ob, gensym("float")); - - /* default values taken from Max's limit */ - x->x_ol = fol; - x->x_oh = foh; - if(x->x_oh < x->x_ol) /* swap values */ - { - int i = x->x_oh; - x->x_oh = x->x_ol; - x->x_ol = i; - } - x->x_ratio = fr; - x->x_f = 0; - - return (void *)x; -} - -#ifndef MAXLIB -void limit_setup(void) -{ - limit_class = class_new(gensym("limit"), (t_newmethod)limit_new, - 0, sizeof(t_limit), 0, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0); -#else -void maxlib_limit_setup(void) -{ - limit_class = class_new(gensym("maxlib_limit"), (t_newmethod)limit_new, - 0, sizeof(t_limit), 0, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0); - class_addcreator((t_newmethod)limit_new, gensym("limit"), A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0); -#endif - class_addfloat(limit_class, limit_float); - class_addbang(limit_class, limit_bang); -#ifndef MAXLIB - - post(version); -#else - class_sethelpsymbol(limit_class, gensym("maxlib/limit-help.pd")); -#endif -} - +/* ------------------------- limit ------------------------------------------ */ +/* */ +/* limits input to lie within an output range. */ +/* 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 = "limit v0.1, written by Olaf Matthes "; + +typedef struct limit +{ + t_object x_ob; + t_float x_ol; /* low border of output range */ + t_float x_oh; /* high border of output range */ + t_float x_ratio; /* 'compression ratio' */ + t_outlet *x_outlet1; /* result */ + t_float x_f; +} t_limit; + +static void limit_float(t_limit *x, t_floatarg f) +{ + if(x->x_oh < x->x_ol) /* swap values */ + { + int i = x->x_oh; + x->x_oh = x->x_ol; + x->x_ol = i; + } + if(x->x_ratio == 0) /* 'clip' mode */ + { + if(f > x->x_oh)f = x->x_oh; + else if(f < x->x_ol)f = x->x_ol; + } + else /* 'compress' mode */ + { + int diff; + if(f > x->x_oh) + { + diff = f - x->x_oh; + f = x->x_oh + (diff / x->x_ratio); + } + else if(f < x->x_ol) + { + diff = x->x_ol - f; + f = x->x_ol - (diff / x->x_ratio); + } + } + outlet_float(x->x_outlet1, f); + x->x_f = f; +} + +static void limit_bang(t_limit *x) +{ + limit_float(x, x->x_f); /* recalculate result */ +} + +static t_class *limit_class; + +static void *limit_new(t_floatarg fol, t_floatarg foh, t_floatarg fr) +{ + t_limit *x = (t_limit *)pd_new(limit_class); + + floatinlet_new(&x->x_ob, &x->x_ol); + floatinlet_new(&x->x_ob, &x->x_oh); + floatinlet_new(&x->x_ob, &x->x_ratio); + + x->x_outlet1 = outlet_new(&x->x_ob, gensym("float")); + + /* default values taken from Max's limit */ + x->x_ol = fol; + x->x_oh = foh; + if(x->x_oh < x->x_ol) /* swap values */ + { + int i = x->x_oh; + x->x_oh = x->x_ol; + x->x_ol = i; + } + x->x_ratio = fr; + x->x_f = 0; + + return (void *)x; +} + +#ifndef MAXLIB +void limit_setup(void) +{ + limit_class = class_new(gensym("limit"), (t_newmethod)limit_new, + 0, sizeof(t_limit), 0, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0); +#else +void maxlib_limit_setup(void) +{ + limit_class = class_new(gensym("maxlib_limit"), (t_newmethod)limit_new, + 0, sizeof(t_limit), 0, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0); + class_addcreator((t_newmethod)limit_new, gensym("limit"), A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0); +#endif + class_addfloat(limit_class, limit_float); + class_addbang(limit_class, limit_bang); +#ifndef MAXLIB + + logpost(NULL, 4, version); +#else + class_sethelpsymbol(limit_class, gensym("maxlib/limit-help.pd")); +#endif +} + -- cgit v1.2.1