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authorIOhannes m zmölnig <zmoelnig@users.sourceforge.net>2005-03-21 14:33:31 +0000
committerIOhannes m zmölnig <zmoelnig@users.sourceforge.net>2005-03-21 14:33:31 +0000
commit10b474fba485e9a93157c7fa534bb66e7bcc6fde (patch)
tree73e9e02738ea62179a1722b37ef49a9e91cfcbad /src/mtx_roll.c
This commit was generated by cvs2svn to compensate for changes in r2637,svn2git-root
which included commits to RCS files with non-trunk default branches. svn path=/trunk/externals/iem/iemmatrix/; revision=2638
Diffstat (limited to 'src/mtx_roll.c')
-rw-r--r--src/mtx_roll.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/src/mtx_roll.c b/src/mtx_roll.c
new file mode 100644
index 0000000..a437b06
--- /dev/null
+++ b/src/mtx_roll.c
@@ -0,0 +1,73 @@
+/*
+ * iemmatrix
+ *
+ * objects for manipulating simple matrices
+ * mostly refering to matlab/octave matrix functions
+ *
+ * (c) IOhannes m zmlnig, forum::fr::umlute
+ *
+ * IEM, Graz
+ *
+ * this code is published under the LGPL
+ *
+ */
+#include "iemmatrix.h"
+
+/* mtx_roll */
+/* roll the rows */
+static t_class *mtx_roll_class;
+
+static void mtx_roll_matrix(t_matrix *x, t_symbol *s, int argc, t_atom *argv)
+{
+ int row=atom_getfloat(argv++);
+ int col=atom_getfloat(argv++);
+ t_atom *ap;
+ int colroll = ((int)x->f%col+col)%col;
+ int c;
+
+ if(row*col>argc-2) {
+ post("mtx_roll: sparse matrices not yet supported : use \"mtx_check\"");
+ return;
+ }
+
+ adjustsize(x, row, col);
+ ap = x->atombuffer+2;
+
+ c=col;
+ while(c--){
+ t_atom *in = argv+col-c-1;
+ t_atom *out = ap +(col-c-1+colroll)%col;
+ int r = row;
+ while (r--){
+ SETFLOAT(out, atom_getfloat(in));
+ out+=col;
+ in+=col;
+ }
+
+ }
+
+ matrix_bang(x);
+}
+
+static void *mtx_roll_new(t_symbol *s, int argc, t_atom *argv)
+{
+ t_matrix *x = (t_matrix *)pd_new(mtx_roll_class);
+ floatinlet_new(&x->x_obj, &(x->f));
+ outlet_new(&x->x_obj, 0);
+
+ x->f=argc?atom_getfloat(argv):0;
+ x->col=x->row=0;
+ x->atombuffer=0;
+ return (x);
+}
+void mtx_roll_setup(void)
+{
+ mtx_roll_class = class_new(gensym("mtx_roll"), (t_newmethod)mtx_roll_new,
+ (t_method)matrix_free, sizeof(t_matrix), 0, A_GIMME, 0);
+ class_addbang (mtx_roll_class, matrix_bang);
+ class_addmethod(mtx_roll_class, (t_method)mtx_roll_matrix, gensym("matrix"), A_GIMME, 0);
+ class_sethelpsymbol(mtx_roll_class, gensym("iemmatrix/mtx_transpose"));
+}
+void iemtx_roll_setup(void){
+ mtx_roll_setup();
+}