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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_row */
static t_class *mtx_row_class;
static void mtx_row_float(t_matrix *x, t_floatarg f)
{
int i = f;
if(i<0)i=0;
x->current_row = i;
}
static void mtx_row_matrix(t_matrix *x, t_symbol *s, int argc, t_atom *argv)
{
int row, col;
if (argc<2){ post("matrix : corrupt matrix passed"); return; }
row = atom_getfloat(argv);
col = atom_getfloat(argv+1);
if ((row<1)||(col<1)){ post("matrix : corrupt matrix passed"); return; }
if (row*col > argc-2){ post("matrix: sparse matrices not yet supported : use \"mtx_check\""); return; }
matrix_matrix2(x, s, argc, argv);
matrix_bang(x);
}
static void mtx_row_list(t_matrix *x, t_symbol *s, int argc, t_atom *argv)
{
if (argc==1){
t_float f=atom_getfloat(argv);
t_atom *ap=x->atombuffer+2+(x->current_row-1)*x->col;
if (x->current_row>x->row){
post("mtx_row : too high a row is to be set");
return;
}
if (x->current_row){
int n=x->col;
while(n--){
SETFLOAT(ap, f);
ap++;
}
}
matrix_bang(x);
return;
}
if (argc<x->col){
post("mtx_row : row length is too small for %dx%d-matrix", x->row, x->col);
return;
}
if (x->current_row>x->row){
post("mtx_row : too high a row is to be set");
return;
}
if(x->current_row) {memcpy(x->atombuffer+2+(x->current_row-1)*x->col, argv, x->col*sizeof(t_atom));
} else {
int r=x->row;
while(r--)memcpy(x->atombuffer+2+r*x->col, argv, x->col*sizeof(t_atom));
}
matrix_bang(x);
}
static void *mtx_row_new(t_symbol *s, int argc, t_atom *argv)
{
t_matrix *x = (t_matrix *)pd_new(mtx_row_class);
int i, j, q;
outlet_new(&x->x_obj, 0);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym(""));
x->current_row=0;
x->col=x->row=0;
x->atombuffer=0;
switch (argc) {
case 0:break;
case 1:
i = atom_getfloat(argv);
if (i<0)i=0;
if(i)adjustsize(x, i, i);
matrix_set(x, 0);
break;
case 2:
i = atom_getfloat(argv++);if(i<0)i=0;
j = atom_getfloat(argv++);if(j<0)j=0;
if(i*j)adjustsize(x, i, j);
matrix_set(x, 0);
break;
default:
i = atom_getfloat(argv++);if(i<0)i=0;
j = atom_getfloat(argv++);if(j<0)j=0;
q = atom_getfloat(argv++);if(q<0)q=0;
if(i*j)adjustsize(x, i, j);
matrix_set(x, 0);
x->current_row=q;
}
return (x);
}
void mtx_row_setup(void)
{
mtx_row_class = class_new(gensym("mtx_row"), (t_newmethod)mtx_row_new,
(t_method)matrix_free, sizeof(t_matrix), 0, A_GIMME, 0);
class_addbang (mtx_row_class, matrix_bang);
class_addlist (mtx_row_class, mtx_row_list);
class_addmethod(mtx_row_class, (t_method)mtx_row_matrix, gensym("matrix"), A_GIMME, 0);
class_addmethod(mtx_row_class, (t_method)mtx_row_float, gensym(""), A_FLOAT, 0);
class_sethelpsymbol(mtx_row_class, gensym("iemmatrix/mtx_element"));
}
void iemmtx_row_setup(void)
{
mtx_row_setup();
}
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