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/*
* iemmatrix
*
* objects for manipulating simple matrices
* mostly refering to matlab/octave matrix functions
*
* Copyright (c) IOhannes m zmölnig, forum::für::umläute
* 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_resize */
static t_class *mtx_resize_class;
static void mtx_resize_list2(t_matrix *x, t_symbol *s, int argc, t_atom *argv)
{
int r, c;
if (argc<1)return;
if (argc>2)pd_error(x, "mtx_resize : only rows & cols are needed, skipping the rest");
if (argc==1)r=c=atom_getfloat(argv++);
else{
r=atom_getfloat(argv++);
c=atom_getfloat(argv++);
}
if (r<0)r=0;
if (c<0)c=0;
x->current_row = r;
x->current_col = c;
}
static void mtx_resize_matrix(t_matrix *x, t_symbol *s, int argc, t_atom *argv)
{
int row=atom_getfloat(argv);
int col=atom_getfloat(argv+1);
int r = x->current_row, c = x->current_col;
int R=0, ROW, COL;
if (argc<2){ post("mtx_add: crippled matrix"); return; }
if ((col<1)||(row<1)) { post("mtx_add: invalid dimensions"); return; }
if (col*row>argc-2){ post("sparse matrix not yet supported : use \"mtx_check\""); return; }
if (!r)r=row;
if (!c)c=col;
if (r==row && c==col) { /* no need to change */
outlet_anything(x->x_obj.ob_outlet, gensym("matrix"), argc, argv);
return;
}
x->atombuffer=(t_atom *)getbytes((c*r+2)*sizeof(t_atom));
setdimen(x, r, c);
matrix_set(x, 0);
ROW=(r<row)?r:row;
COL=(c<col)?c:col;
R=ROW;
while(R--)memcpy(x->atombuffer+2+(ROW-R-1)*c, argv+2+(ROW-R-1)*col, COL*sizeof(t_atom));
matrix_bang(x);
freebytes(x->atombuffer, (c*r+2)*sizeof(t_atom));
}
static void *mtx_resize_new(t_symbol *s, int argc, t_atom *argv)
{
t_matrix *x = (t_matrix *)pd_new(mtx_resize_class);
int c=0, r=0;
if(argc){
if(argc-1){
r=atom_getfloat(argv);
c=atom_getfloat(argv+1);
} else r=c=atom_getfloat(argv);
if(c<0)c=0;
if(r<0)r=0;
}
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym(""));
outlet_new(&x->x_obj, 0);
x->current_row = r;
x->current_col = c;
x->row = x->col= 0;
x->atombuffer = 0;
return (x);
}
void mtx_resize_setup(void)
{
mtx_resize_class = class_new(gensym("mtx_resize"), (t_newmethod)mtx_resize_new,
0, sizeof(t_matrix), 0, A_GIMME, 0);
class_addmethod (mtx_resize_class, (t_method)mtx_resize_matrix, gensym("matrix"), A_GIMME, 0);
class_addmethod (mtx_resize_class, (t_method)mtx_resize_list2, gensym(""), A_GIMME, 0);
}
void iemtx_resize_setup(void){
mtx_resize_setup();
}
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