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authorHans-Christoph Steiner <eighthave@users.sourceforge.net>2006-05-25 16:40:19 +0000
committerHans-Christoph Steiner <eighthave@users.sourceforge.net>2006-05-25 16:40:19 +0000
commitd962ed33f6b5fe3040cfbd798f63ab9aa36d1f9e (patch)
treef700234efa8d57c28ce9be56e0db5f6526921fbe /modules/lattice.c
parent2994949cca515f63fb82fa1d114ce07eb213220d (diff)
renamed files to match their class names
svn path=/trunk/externals/creb/; revision=5127
Diffstat (limited to 'modules/lattice.c')
-rw-r--r--modules/lattice.c144
1 files changed, 0 insertions, 144 deletions
diff --git a/modules/lattice.c b/modules/lattice.c
deleted file mode 100644
index 6f8e816..0000000
--- a/modules/lattice.c
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
- * lattice.c - a lattice filter for pd
- * Copyright (c) 2000-2003 by Tom Schouten
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-
-
-#include "m_pd.h"
-#include <math.h>
-
-#define MAXORDER 1024
-#define MAXREFCO 0.9999f
-
-typedef struct latticesegment
-{
- t_float delay; // delay element
- t_float rc; // reflection coefficient
-} t_latticesegment;
-
-typedef struct latticectl
-{
- t_latticesegment c_segment[MAXORDER]; // array of lattice segment data
- t_int c_segments;
-} t_latticectl;
-
-typedef struct lattice
-{
- t_object x_obj;
- t_float x_f;
- t_latticectl x_ctl;
-} t_lattice;
-
-
-
-static t_int *lattice_perform(t_int *w)
-{
-
-
- t_float *in = (float *)(w[3]);
- t_float *out = (float *)(w[4]);
- t_latticectl *ctl = (t_latticectl *)(w[1]);
- t_int i,j;
- t_int n = (t_int)(w[2]);
- t_float x,rc,d;
-
- t_latticesegment* seg = ctl->c_segment;
- t_int segments = ctl->c_segments;
- for (i=0; i<n; i++)
- {
- x = *in++;
- // section 0
- rc = seg[0].rc;
- x += seg[0].delay * rc;
-
- // section 1 to segments-1
- for (j=1; j < segments; j++)
- {
- rc = seg[j].rc;
- d = seg[j].delay;
- x += d * rc;
- seg[j-1].delay = d - rc * x;
- }
- // stub
- seg[segments-1].delay = x;
-
- *out++ = x;
- }
-
- return (w+5);
-}
-
-static void lattice_dsp(t_lattice *x, t_signal **sp)
-{
- dsp_add(lattice_perform, 4, &x->x_ctl, sp[0]->s_n, sp[0]->s_vec, sp[1]->s_vec);
-
-}
-static void lattice_free(void)
-{
-
-}
-
-t_class *lattice_class;
-
-static void lattice_rc(t_lattice *x, t_float segment, t_float refco)
-{
- t_int seg = (t_float)segment;
- if ((seg >= 0) && (seg < x->x_ctl.c_segments)){
- if (refco >= MAXREFCO) refco = MAXREFCO;
- if (refco <= -MAXREFCO) refco = -MAXREFCO;
- x->x_ctl.c_segment[seg].rc = refco;
- }
-}
-
-static void lattice_reset(t_lattice *x)
-{
- t_float* buf = (t_float *)x->x_ctl.c_segment;
- t_int n = x->x_ctl.c_segments;
- t_int i;
- for (i=0; i<n; i++) buf[i]=0;
-}
-
-static void *lattice_new(t_floatarg segments)
-{
- t_lattice *x = (t_lattice *)pd_new(lattice_class);
- t_int seg = (t_int)segments;
-
- outlet_new(&x->x_obj, gensym("signal"));
-
- if (seg < 1) seg = 1;
- if (seg > MAXORDER) seg = MAXORDER;
-
- x->x_ctl.c_segments = seg;
-
- lattice_reset(x);
-
- return (void *)x;
-}
-
-void lattice_tilde_setup(void)
-{
- //post("lattice~ v0.1");
- lattice_class = class_new(gensym("lattice~"), (t_newmethod)lattice_new,
- (t_method)lattice_free, sizeof(t_lattice), 0, A_DEFFLOAT, 0);
- CLASS_MAINSIGNALIN(lattice_class, t_lattice, x_f);
- class_addmethod(lattice_class, (t_method)lattice_dsp, gensym("dsp"), 0);
- class_addmethod(lattice_class, (t_method)lattice_reset, gensym("reset"), 0);
- class_addmethod(lattice_class, (t_method)lattice_rc, gensym("rc"), A_FLOAT, A_FLOAT, 0);
-
-}
-