From d532ab70c9c672647f029c863c80136d525828bf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?IOhannes=20m=20zm=C3=B6lnig?=
<zmoelnig@users.sourceforge.net>
Date: Thu, 3 Jan 2008 13:23:32 +0000
Subject: an object to test for equality of matrices
svn path=/trunk/externals/iem/iemmatrix/; revision=9116
---
src/mtx_isequal.c | 153 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 153 insertions(+)
create mode 100644 src/mtx_isequal.c
diff --git a/src/mtx_isequal.c b/src/mtx_isequal.c
new file mode 100644
index 0000000..ded85c7
--- /dev/null
+++ b/src/mtx_isequal.c
@@ -0,0 +1,153 @@
+/*
+ * iemmatrix
+ *
+ * objects for manipulating simple matrices
+ * mostly refering to matlab/octave matrix functions
+ *
+ * Copyright (c) IOhannes m zm�lnig, forum::f�r::uml�ute
+ * IEM, Graz, Austria
+ *
+ * For information on usage and redistribution, and for a DISCLAIMER OF ALL
+ * WARRANTIES, see the file, "LICENSE.txt," in this distribution.
+ *
+ */
+#include "iemmatrix.h"
+
+/*
+ mtx_isequal
+*/
+
+/* mtx_isequal */
+static t_class *mtx_isequal_class, *mtx_isequalscalar_class;
+
+static void mtx_isequalscalar_matrix(t_mtx_binscalar *x, t_symbol *s, int argc, t_atom *argv)
+{
+ int n=argc-2;
+ int row=atom_getfloat(argv), col=atom_getfloat(argv+1);
+
+ t_float offset=x->f;
+ t_atom *buf;
+ t_atom *ap=argv+2;
+
+ if(argc<2){post("mtx_isequal: crippled matrix");return; }
+
+ while(n--){
+ if(atom_getfloat(ap)!=offset) {
+ outlet_float(x->x_obj.ob_outlet, (t_float)0);
+ return;
+ }
+ ap++;
+ }
+ outlet_float(x->x_obj.ob_outlet, (t_float)1);
+}
+static void mtx_isequalscalar_list(t_mtx_binscalar *x, t_symbol *s, int argc, t_atom *argv)
+{
+ int n=argc;
+ t_atom *ap=argv;
+ t_float offset = x->f;
+
+ while(n--){
+ if(atom_getfloat(ap)!=offset) {
+ outlet_float(x->x_obj.ob_outlet, (t_float)0);
+ return;
+ }
+ ap++;
+ }
+ outlet_float(x->x_obj.ob_outlet, (t_float)1);
+}
+
+static void mtx_isequal_matrix(t_mtx_binmtx *x, t_symbol *s, int argc, t_atom *argv)
+{
+ int row=atom_getfloat(argv);
+ int col=atom_getfloat(argv+1);
+ t_atom *m;
+ t_atom *m1 = argv+2;
+ t_atom *m2 = x->m2.atombuffer+2;
+ int n = argc-2;
+
+ if (argc<2){ post("mtx_isequal: crippled matrix"); return; }
+ if ((col<1)||(row<1)) { post("mtx_isequal: invalid dimensions"); return; }
+ if (col*row>argc-2){ post("sparse matrix not yet supported : use \"mtx_check\""); return; }
+
+ if ((col!=x->m2.col)||(row!=x->m2.row)){
+ outlet_float(x->x_obj.ob_outlet, (t_float)0);
+ return;
+ }
+
+ while(n--){
+ if(atom_getfloat(m1++)!=atom_getfloat(m2++)) {
+ outlet_float(x->x_obj.ob_outlet, (t_float)0);
+ return;
+ }
+ }
+
+ outlet_float(x->x_obj.ob_outlet, (t_float)1);
+}
+static void mtx_isequal_float(t_mtx_binmtx *x, t_float f)
+{
+ t_matrix *m=&x->m, *m2=&x->m2;
+ t_atom *ap=m2->atombuffer+2;
+ int row2, col2, n;
+
+ if (!m2->atombuffer){
+ outlet_float(x->x_obj.ob_outlet, (t_float)0);
+ return;
+ }
+
+ row2=atom_getfloat(m2->atombuffer);
+ col2=atom_getfloat(m2->atombuffer+1);
+
+ n=row2*col2;
+
+
+ while(n--){
+ if(atom_getfloat(ap)!=f) {
+ outlet_float(x->x_obj.ob_outlet, (t_float)0);
+ return;
+ }
+ ap++;
+ }
+ outlet_float(x->x_obj.ob_outlet, (t_float)1);
+}
+static void *mtx_isequal_new(t_symbol *s, int argc, t_atom *argv)
+{
+ if (argc>1) post("mtx_isequal : extra arguments ignored");
+ if (argc) {
+ t_mtx_binscalar *x = (t_mtx_binscalar *)pd_new(mtx_isequalscalar_class);
+ floatinlet_new(&x->x_obj, &x->f);
+ x->f = atom_getfloatarg(0, argc, argv);
+ outlet_new(&x->x_obj, 0);
+ return(x);
+ } else {
+ t_mtx_binmtx *x = (t_mtx_binmtx *)pd_new(mtx_isequal_class);
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("matrix"), gensym(""));
+ outlet_new(&x->x_obj, 0);
+ x->m.col = x->m.row = x->m2.col = x->m2.row = 0;
+ x->m.atombuffer = x->m2.atombuffer = 0;
+ return(x);
+ }
+}
+
+void mtx_isequal_setup(void)
+{
+ mtx_isequal_class = class_new(gensym("mtx_isequal"), (t_newmethod)mtx_isequal_new, (t_method)mtx_binmtx_free,
+ sizeof(t_mtx_binmtx), 0, A_GIMME, 0);
+ class_addmethod(mtx_isequal_class, (t_method)mtx_isequal_matrix, gensym("matrix"), A_GIMME, 0);
+ class_addmethod(mtx_isequal_class, (t_method)mtx_bin_matrix2, gensym(""), A_GIMME, 0);
+ class_addfloat (mtx_isequal_class, mtx_isequal_float);
+ class_addbang (mtx_isequal_class, mtx_binmtx_bang);
+
+ mtx_isequalscalar_class = class_new(gensym("mtx_isequal"), 0, (t_method)mtx_binscalar_free,
+ sizeof(t_mtx_binscalar), 0, 0);
+ class_addmethod(mtx_isequalscalar_class, (t_method)mtx_isequalscalar_matrix, gensym("matrix"), A_GIMME, 0);
+ class_addlist (mtx_isequalscalar_class, mtx_isequalscalar_list);
+ class_addbang (mtx_isequalscalar_class, mtx_binscalar_bang);
+
+
+
+}
+
+void iemtx_isequal_setup(void)
+{
+ mtx_isequal_setup();
+}
--
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