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 --- src/delta.c | 139 ------------------------------------------------------------ 1 file changed, 139 deletions(-) delete mode 100644 src/delta.c (limited to 'src/delta.c') diff --git a/src/delta.c b/src/delta.c deleted file mode 100644 index 41e9b6e..0000000 --- a/src/delta.c +++ /dev/null @@ -1,139 +0,0 @@ -/* ------------------------- delta ------------------------------------------ */ -/* */ -/* Claculate 1st or 2nd order difference. */ -/* Written by Olaf Matthes (olaf.matthes@gmx.de) */ -/* Inspired by code written by Trond Lossius. */ -/* 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 - -#define MAXSIZE 32 - -static char *version = "delta v0.1, written by Olaf Matthes "; - -typedef struct delta -{ - t_object x_ob; - t_outlet *x_out; /* result */ - t_int x_order; /* 1st or second order */ - t_int x_clearflag; - t_float x_delta; /* the result */ - - t_float x_prev; /* previous value */ - t_float x_prev2; /* value previous to previous value */ -} t_delta; - -static void delta_clear(t_delta *x) -{ - if(x->x_order == 2) - x->x_clearflag = 2; - else - x->x_clearflag = 1; - x->x_delta = 0; -} - -static void delta_bang(t_delta *x) -{ - outlet_float(x->x_out, x->x_delta); -} - -static void delta_float(t_delta *x, t_floatarg f) -{ - if(x->x_order != 2) /* first order */ - { - if(x->x_clearflag) - { - x->x_prev = f; - x->x_delta = 0; - x->x_clearflag = 0; - } - else - { - x->x_delta = f - x->x_prev; - x->x_prev = f; - } - } - else - { - switch(x->x_clearflag) - { - case 0: - x->x_delta = f - 2*x->x_prev + x->x_prev2; - x->x_prev2 = x->x_prev; - x->x_prev = f; - break; - case 1: - x->x_prev = f; - x->x_clearflag--; - break; - case 2: - x->x_prev2 = f; - x->x_clearflag--; - break; - } - } - delta_bang(x); -} - -static t_class *delta_class; - -static void *delta_new(t_floatarg f) -{ - int i; - - t_delta *x = (t_delta *)pd_new(delta_class); - x->x_out = outlet_new(&x->x_ob, gensym("float")); - - x->x_order = (int)f; - if(x->x_order == 2) - x->x_clearflag = 2; - else - x->x_clearflag = 1; - x->x_delta = 0; - - return (void *)x; -} - -#ifndef MAXLIB -void delta_setup(void) -{ - delta_class = class_new(gensym("delta"), (t_newmethod)delta_new, - 0, sizeof(t_delta), 0, A_DEFFLOAT, 0); -#else -void maxlib_delta_setup(void) -{ - delta_class = class_new(gensym("maxlib_delta"), (t_newmethod)delta_new, - 0, sizeof(t_delta), 0, A_DEFFLOAT, 0); -#endif - class_addfloat(delta_class, delta_float); - class_addbang(delta_class, (t_method)delta_bang); - class_addmethod(delta_class, (t_method)delta_clear, gensym("clear"), 0); - class_sethelpsymbol(delta_class, gensym("maxlib/delta-help.pd")); -#ifndef MAXLIB - - post(version); -#else - class_addcreator((t_newmethod)delta_new, gensym("delta"), A_DEFFLOAT, 0); - class_sethelpsymbol(delta_class, gensym("maxlib/delta-help.pd")); -#endif -} - -- cgit v1.2.1