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authorIOhannes m zmölnig <zmoelnig@users.sourceforge.net>2005-09-19 13:28:51 +0000
committerIOhannes m zmölnig <zmoelnig@users.sourceforge.net>2005-09-19 13:28:51 +0000
commit50de7975dd56bacba6dd86d7a354a742803484ce (patch)
tree3172f01ab2eca8519388c00c22ee3833e0b49279 /src/mtx_max2.c
parente3e08e3c507a4ad6f7e34d38ad38deaf2d3d9338 (diff)
functions to get elementwise minimum/maximum of 2 matrices
svn path=/trunk/externals/iem/iemmatrix/; revision=3596
Diffstat (limited to 'src/mtx_max2.c')
-rw-r--r--src/mtx_max2.c157
1 files changed, 157 insertions, 0 deletions
diff --git a/src/mtx_max2.c b/src/mtx_max2.c
new file mode 100644
index 0000000..de25479
--- /dev/null
+++ b/src/mtx_max2.c
@@ -0,0 +1,157 @@
+/*
+ * iemmatrix
+ *
+ * objects for manipulating simple matrices
+ * mostly refering to matlab/octave matrix functions
+ *
+ * Copyright (c) IOhannes m zmlnig, forum::fr::umlute
+ * 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_max2
+*/
+
+/* mtx_max2 */
+static t_class *mtx_max2_class, *mtx_max2scalar_class;
+
+static void mtx_max2scalar_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_max2: crippled matrix");return; }
+ adjustsize(&x->m, row, col);
+
+ buf=x->m.atombuffer+2;
+
+ while(n--){
+ buf->a_type = A_FLOAT;
+ buf++->a_w.w_float = atom_getfloat(ap++) + offset;
+ }
+ outlet_anything(x->x_obj.ob_outlet, gensym("matrix"), argc, x->m.atombuffer);
+}
+static void mtx_max2scalar_list(t_mtx_binscalar *x, t_symbol *s, int argc, t_atom *argv)
+{
+ int n=argc;
+ t_atom *m;
+ t_float offset = x->f;
+ adjustsize(&x->m, 1, argc);
+ m = x->m.atombuffer;
+
+ while(n--){
+ m->a_type = A_FLOAT;
+ (m++)->a_w.w_float = atom_getfloat(argv++) + offset;
+ }
+ outlet_list(x->x_obj.ob_outlet, gensym("list"), argc, x->m.atombuffer);
+}
+
+static void mtx_max2_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_max2: crippled matrix"); return; }
+ if ((col<1)||(row<1)) { post("mtx_max2: invalid dimensions"); return; }
+ if (col*row>argc-2){ post("sparse matrix not yet supported : use \"mtx_check\""); return; }
+
+ if (!(x->m2.col*x->m2.row)) {
+ outlet_anything(x->x_obj.ob_outlet, gensym("matrix"), argc, argv);
+ return;
+ }
+
+ if ((col!=x->m2.col)||(row!=x->m2.row)){
+ post("mtx_max2: matrix dimensions do not match");
+ /* LATER SOLVE THIS */
+ return;
+ }
+ adjustsize(&x->m, row, col);
+ m = x->m.atombuffer+2;
+
+ while(n--){
+ t_float f1=atom_getfloat(m1++);
+ t_float f2=atom_getfloat(m2++);
+ t_float f = (f1>f2)?f1:f2;
+ SETFLOAT(m, f);
+ m++;
+ }
+
+ outlet_anything(x->x_obj.ob_outlet, gensym("matrix"), argc, x->m.atombuffer);
+}
+static void mtx_max2_float(t_mtx_binmtx *x, t_float f)
+{
+ t_matrix *m=&x->m, *m2=&x->m2;
+ t_atom *ap, *ap2=m2->atombuffer+2;
+ int row2, col2, n;
+
+ if (!m2->atombuffer){ post("mulitply with what ?"); return; }
+
+ row2=atom_getfloat(m2->atombuffer);
+ col2=atom_getfloat(m2->atombuffer+1);
+ adjustsize(m, row2, col2);
+ ap=m->atombuffer+2;
+
+ n=row2*col2;
+
+ while(n--){
+ SETFLOAT(ap, f+atom_getfloat(ap2++));
+ ap++;
+ }
+
+ outlet_anything(x->x_obj.ob_outlet, gensym("matrix"), m->row*m->col+2, m->atombuffer);
+}
+static void *mtx_max2_new(t_symbol *s, int argc, t_atom *argv)
+{
+ if (argc>1) post("mtx_max2 : extra arguments ignored");
+ if (argc) {
+ t_mtx_binscalar *x = (t_mtx_binscalar *)pd_new(mtx_max2scalar_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_max2_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_max2_setup(void)
+{
+ mtx_max2_class = class_new(gensym("mtx_max2"), (t_newmethod)mtx_max2_new, (t_method)mtx_binmtx_free,
+ sizeof(t_mtx_binmtx), 0, A_GIMME, 0);
+ class_addmethod(mtx_max2_class, (t_method)mtx_max2_matrix, gensym("matrix"), A_GIMME, 0);
+ class_addmethod(mtx_max2_class, (t_method)mtx_bin_matrix2, gensym(""), A_GIMME, 0);
+ class_addfloat (mtx_max2_class, mtx_max2_float);
+ class_addbang (mtx_max2_class, mtx_binmtx_bang);
+
+ mtx_max2scalar_class = class_new(gensym("mtx_max2"), 0, (t_method)mtx_binscalar_free,
+ sizeof(t_mtx_binscalar), 0, 0);
+ class_addmethod(mtx_max2scalar_class, (t_method)mtx_max2scalar_matrix, gensym("matrix"), A_GIMME, 0);
+ class_addlist (mtx_max2scalar_class, mtx_max2scalar_list);
+ class_addbang (mtx_max2scalar_class, mtx_binscalar_bang);
+
+ class_sethelpsymbol(mtx_max2_class, gensym("iemmatrix/mtx_binops"));
+ class_sethelpsymbol(mtx_max2scalar_class, gensym("iemmatrix/mtx_binops"));
+}
+
+void iemtx_max2_setup(void)
+{
+ mtx_max2_setup();
+}