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/*
* iemmatrix
*
* objects for manipulating simple matrices
* mostly refering to matlab/octave matrix functions
*
* (c) IOhannes m zmölnig, forum::für::umläute
*
* IEM, Graz
*
* this code is published under the LGPL
*
*/
#include "iemmatrix.h"
/* mtx_scroll */
/* scroll the rows */
static t_class *mtx_scroll_class;
static void mtx_scroll_matrix(t_matrix *x, t_symbol *s, int argc, t_atom *argv)
{
int row=atom_getfloat(argv++);
int col=atom_getfloat(argv++);
int rowscroll = ((int)x->f%row+row)%row;
if(row*col>argc-2) {
post("mtx_scroll: sparse matrices not yet supported : use \"mtx_check\"");
return;
}
adjustsize(x, row, col);
memcpy(x->atombuffer+2, argv+(row-rowscroll)*col, rowscroll*col*sizeof(t_atom));
memcpy(x->atombuffer+2+rowscroll*col, argv, (row-rowscroll)*col*sizeof(t_atom));
matrix_bang(x);
}
static void *mtx_scroll_new(t_symbol *s, int argc, t_atom *argv)
{
t_matrix *x = (t_matrix *)pd_new(mtx_scroll_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_scroll_setup(void)
{
mtx_scroll_class = class_new(gensym("mtx_scroll"), (t_newmethod)mtx_scroll_new,
(t_method)matrix_free, sizeof(t_matrix), 0, A_GIMME, 0);
class_addbang (mtx_scroll_class, matrix_bang);
class_addmethod(mtx_scroll_class, (t_method)mtx_scroll_matrix, gensym("matrix"), A_GIMME, 0);
class_sethelpsymbol(mtx_scroll_class, gensym("iemmatrix/mtx_transpose"));
}
void iemtx_scroll_setup(void){
mtx_scroll_setup();
}
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