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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_diag */
static t_class *mtx_diag_class;
static void mtx_diag_matrix(t_matrix *x, t_symbol *s, int argc, t_atom *argv)
{
int row=atom_getfloat(argv++);
int col=atom_getfloat(argv++);
int length=(col<row)?col:row, n=length;
t_atom *ap = (t_atom *)getbytes(length * sizeof(t_atom)), *dummy=ap;
if(row*col>argc-2)post("mtx_diag: sparse matrices not yet supported : use \"mtx_check\"");
else {
for(n=0;n<length;n++, dummy++)SETFLOAT(dummy, atom_getfloat(argv+n*(col+1)));
outlet_list(x->x_obj.ob_outlet, gensym("diag"), length, ap);
}
freebytes(ap, (length * sizeof(t_atom)));
}
static void *mtx_diag_new(t_symbol *s, int argc, t_atom *argv)
{
t_matrix *x = (t_matrix *)pd_new(mtx_diag_class);
outlet_new(&x->x_obj, 0);
x->row = x->col = 0;
x->atombuffer = 0;
if(!argc)return(x);
x->atombuffer = (t_atom *)getbytes((argc*argc+2)*sizeof(t_atom));
setdimen(x, argc, argc);
matrix_set(x, 0);
argv+=argc-1;
while(argc--)SETFLOAT(x->atombuffer+2+argc*(1+x->col), atom_getfloat(argv--));
return (x);
}
void mtx_diag_setup(void)
{
mtx_diag_class = class_new(gensym("mtx_diag"), (t_newmethod)mtx_diag_new,
(t_method)matrix_free, sizeof(t_matrix), 0, A_GIMME, 0);
class_addlist (mtx_diag_class, matrix_diag);
class_addbang (mtx_diag_class, matrix_bang);
class_addmethod(mtx_diag_class, (t_method)mtx_diag_matrix, gensym("matrix"), A_GIMME, 0);
class_sethelpsymbol(mtx_diag_class, gensym("iemmatrix/mtx_trace"));
}
void iemtx_diag_setup(void){
void mtx_diag_setup(void);
}
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