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/*
* iemmatrix
*
* objects for manipulating simple matrices
* mostly refering to matlab/octave matrix functions
*
* Copyright (c) 2005, Franz Zotter
* 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"
static t_class *mtx_repmat_class;
typedef struct _MTXrepmat_ MTXrepmat;
struct _MTXrepmat_
{
t_object x_obj;
int size;
int repeat_rows;
int repeat_cols;
t_outlet *list_outlet;
t_atom *list_out;
};
static void deleteMTXRepmat (MTXrepmat *mtx_repmat_obj)
{
if (mtx_repmat_obj->list_out)
freebytes (mtx_repmat_obj->list_out, sizeof(t_atom)*(mtx_repmat_obj->size+2));
}
static void mTXRepmatList (MTXrepmat *mtx_repmat_obj, t_symbol *s,
int argc, t_atom *argv)
{
if (argc!=2) {
post("mtx_repmat: there have to be exactly 2 arguments");
return;
}
mtx_repmat_obj->repeat_rows = atom_getint(argv++);
mtx_repmat_obj->repeat_cols = atom_getint(argv);
}
static void *newMTXRepmat (t_symbol *s, int argc, t_atom *argv)
{
MTXrepmat *mtx_repmat_obj = (MTXrepmat *) pd_new (mtx_repmat_class);
mtx_repmat_obj->repeat_cols = 1;
mtx_repmat_obj->repeat_rows = 1;
if (argc)
mTXRepmatList (mtx_repmat_obj, gensym("list"), argc, argv);
mtx_repmat_obj->list_outlet = outlet_new (&mtx_repmat_obj->x_obj, gensym("matrix"));
inlet_new(&mtx_repmat_obj->x_obj, &mtx_repmat_obj->x_obj.ob_pd, gensym("list"),gensym(""));
return ((void *) mtx_repmat_obj);
}
static void mTXRepmatBang (MTXrepmat *mtx_repmat_obj)
{
if (mtx_repmat_obj->list_out)
outlet_anything(mtx_repmat_obj->list_outlet, gensym("matrix"),
mtx_repmat_obj->size+2, mtx_repmat_obj->list_out);
}
static void copyList (int n, t_atom *x, t_atom *y)
{
while (n--)
*y++=*x++;
}
static void writeRepeatIntoMatrix (int repeat_rows, int repeat_cols, int rows, int columns, t_atom *x, t_atom *y)
{
int row_cnt;
int col_cnt;
int new_col = columns * repeat_cols;
t_atom *ptr = y;
// writing each row repeatedly (repeat_col times) into output array
// so that : row1#1 row1#2 ... row1#RN | ... | rowN#1 rowN#2 ... rowN#RN
for (row_cnt=rows;row_cnt--;x+=columns)
for(col_cnt=repeat_cols;col_cnt--;ptr+=columns)
copyList (columns, x, ptr);
// repeating the above written long lines repeat row_repeat times in output array
for (;--repeat_rows;)
for (row_cnt=rows;row_cnt--;y+=new_col,ptr+=new_col)
copyList (new_col, y, ptr);
}
static void mTXRepmatMatrix (MTXrepmat *mtx_repmat_obj, t_symbol *s,
int argc, t_atom *argv)
{
int rows = atom_getint (argv++);
int columns = atom_getint (argv++);
int rep_rows = mtx_repmat_obj->repeat_rows;
int rep_cols = mtx_repmat_obj->repeat_cols;
int mrows = rows * rep_rows;
int mcolumns = columns * rep_cols;
int size = rows * columns;
int list_size = argc - 2;
t_atom *list_in = argv;
t_atom *list_out = mtx_repmat_obj->list_out;
// size check
if (!size) {
post("mtx_repmat: invalid dimensions");
return;
}
else if (list_size<size) {
post("mtx_repmat: sparse matrix not yet supported: use \"mtx_check\"");
return;
}
mrows = rows * rep_rows;
mcolumns = columns * rep_cols;
size = mrows * mcolumns;
if (size != mtx_repmat_obj->size) {
if (list_out)
list_out = (t_atom*) resizebytes (list_out,
sizeof(t_atom)*(mtx_repmat_obj->size+2),
sizeof(t_atom)*(size+2));
else
list_out = (t_atom*) getbytes (sizeof(t_atom)*(size+2));
mtx_repmat_obj->list_out = list_out;
mtx_repmat_obj->size = size;
//post("size %d, rows %d, columns %d", size, rows, columns);
}
// main part
writeRepeatIntoMatrix (rep_rows, rep_cols, rows, columns,
list_in, list_out+2);
SETFLOAT(list_out, mrows);
SETFLOAT(&list_out[1], mcolumns);
mTXRepmatBang (mtx_repmat_obj);
}
void mtx_repmat_setup (void)
{
mtx_repmat_class = class_new
(gensym("mtx_repmat"),
(t_newmethod) newMTXRepmat,
(t_method) deleteMTXRepmat,
sizeof (MTXrepmat),
CLASS_DEFAULT, A_GIMME, 0);
class_addbang (mtx_repmat_class, (t_method) mTXRepmatBang);
class_addmethod (mtx_repmat_class, (t_method) mTXRepmatMatrix, gensym("matrix"), A_GIMME,0);
class_addmethod (mtx_repmat_class, (t_method) mTXRepmatList, gensym(""), A_GIMME,0);
class_sethelpsymbol (mtx_repmat_class, gensym("iemmatrix/mtx_repmat"));
}
void iemtx_repmat_setup(void){
mtx_repmat_setup();
}
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