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-rw-r--r--simile/simile.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/simile/simile.c b/simile/simile.c
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+/*
+ * simile : windowed similarity comparison
+ * Copyright (C) 2005 edward kelly <morph_2016@yahoo.co.uk>
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "m_pd.h"
+
+typedef struct _simile {
+ t_object x_obj;
+ t_float x_win;
+ t_float min;
+ t_float sign;
+ t_float x_in1;
+ t_float x_in2;
+ t_float x_result;
+ t_outlet *x_sim, *x_sign;
+} t_simile;
+
+void simile_float(t_simile *x, t_floatarg in1) {
+ x->x_in1 = in1;
+ x->x_win = x->x_win > 0 ? x->x_win : 0.01; /* defaults to 0.01 so that we avoid /0 errors */
+ x->min = ( x->x_in1 > x->x_in2 ) ? (x->x_in1 - x->x_in2) : (x->x_in2 - x->x_in1);
+ x->sign = ( x->x_in1 >= x->x_in2 ) ? 1 : -1;
+ x->x_result = 1 / ((x->min / x->x_win) + 1);
+ outlet_float(x->x_sign, x->sign);
+ outlet_float(x->x_sim, x->x_result);
+}
+
+void simile_bang(t_simile *x) {
+ outlet_float(x->x_sign, x->sign);
+ outlet_float(x->x_sim, x->x_result);
+}
+
+t_class *simile_class;
+
+void *simile_new(t_floatarg x_win) {
+ t_simile *x = (t_simile *)pd_new(simile_class);
+ x->x_sim = outlet_new(&x->x_obj, gensym("float"));
+ x->x_sign = outlet_new(&x->x_obj, gensym("float"));
+ floatinlet_new(&x->x_obj, &x->x_in2);
+ floatinlet_new(&x->x_obj, &x->x_win);
+ return (void *)x;
+}
+
+void simile_setup(void) {
+ simile_class = class_new(gensym("simile"),
+ (t_newmethod)simile_new,
+ 0, sizeof(t_simile),
+ 0, A_DEFFLOAT, 0);
+ post("|------------->simile<--------------|");
+ post("|->weighted similarity measurement<-|");
+ post("|-->edward<----->kelly<----->2005<--|");
+ class_sethelpsymbol(simile_class, gensym("help-simile"));
+ class_addbang(simile_class, simile_bang);
+ class_addfloat(simile_class, simile_float);
+}