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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_colon_class;
typedef struct _MTXColon_ MTXColon;
struct _MTXColon_
{
t_object x_obj;
int size;
t_atom *list_out;
t_outlet *list_outlet;
};
static void deleteMTXColon (MTXColon *mtx_colon_obj)
{
if (mtx_colon_obj->list_out)
freebytes (mtx_colon_obj->list_out, sizeof(t_atom)*(mtx_colon_obj->size+2));
}
static void *newMTXColon (t_symbol *s, int argc, t_atom *argv)
{
MTXColon *mtx_colon_obj = (MTXColon *) pd_new (mtx_colon_class);
mtx_colon_obj->list_outlet = outlet_new (&mtx_colon_obj->x_obj, gensym("matrix"));
return ((void *) mtx_colon_obj);
}
static void mTXColonBang (MTXColon *mtx_colon_obj)
{
if (mtx_colon_obj->list_out)
outlet_anything(mtx_colon_obj->list_outlet, gensym("matrix"),
mtx_colon_obj->size+2, mtx_colon_obj->list_out);
}
static void mTXColonList (MTXColon *mtx_colon_obj, t_symbol *s,
int argc, t_atom *argv)
{
int size;
t_float startval;
t_float stopval;
t_float step;
t_atom *list_out = mtx_colon_obj->list_out;
if (argc == 3) {
startval = atom_getfloat(argv++);
step = atom_getfloat(argv++);
stopval = atom_getfloat(argv++);
}
else if (argc == 2) {
startval = atom_getfloat(argv++);
stopval = atom_getfloat(argv++);
step = 1.0f;
}
else {
post("mtx_colon: wrong number of input arguments");
return;
}
size = (int)((stopval- startval + step) / step);
//post("startval %f stopval %f step %f, size %d",startval, stopval, step, size);
if (size) {
if (size!=mtx_colon_obj->size) {
if (list_out)
list_out = (t_atom *) resizebytes (list_out,
sizeof(t_atom)*(mtx_colon_obj->size+2),
sizeof(t_atom)*(size+2));
else
list_out = (t_atom*) getbytes (sizeof(t_atom)*(size+2));
mtx_colon_obj->size = size;
}
mtx_colon_obj->list_out = list_out;
SETFLOAT (&list_out[0],1.0f);
SETFLOAT (&list_out[1],(t_float)size);
list_out += 2;
for (;size--;list_out++,startval+=step)
SETFLOAT(list_out,startval);
mTXColonBang (mtx_colon_obj);
}
}
static void mTXColonMtx (MTXColon *mtx_colon_obj, t_symbol *s,
int argc, t_atom *argv)
{
int rows = atom_getint (argv++);
int columns = atom_getint (argv++);
int size = rows * columns;
int list_size = argc - 2;
t_atom *list_ptr = argv;
t_atom *list_out = mtx_colon_obj->list_out;
if (!size) {
post("mtx_colon: invalid matrix dimensions");
return;
}
else if (list_size<size) {
post("mtx_colon: sparse matrix not yet supported: use \"mtx_check\"");
return;
}
else if (!list_out) {
list_out = (t_atom*) getbytes (sizeof (t_atom) * (size+2));
}
else if (size != mtx_colon_obj->size)
{
list_out = (t_atom*) resizebytes (list_out,
sizeof (t_atom) * (mtx_colon_obj->size+2),
sizeof (t_atom) * (size+2));
}
mtx_colon_obj->list_out = list_out;
mtx_colon_obj->size = size;
list_out+=2;
while (size--)
*list_out++ = *list_ptr++;
list_out = mtx_colon_obj->list_out;
size = mtx_colon_obj->size;
SETSYMBOL(list_out, gensym("matrix"));
SETFLOAT(list_out, 1);
SETFLOAT(&list_out[1], size);
mTXColonBang (mtx_colon_obj);
}
void mtx_colon_setup (void)
{
mtx_colon_class = class_new
(gensym("mtx_colon"),
(t_newmethod) newMTXColon,
(t_method) deleteMTXColon,
sizeof (MTXColon),
CLASS_DEFAULT, A_GIMME, 0);
class_addbang (mtx_colon_class, (t_method) mTXColonBang);
class_addmethod (mtx_colon_class, (t_method) mTXColonMtx, gensym("matrix"), A_GIMME, 0);
class_addlist (mtx_colon_class, (t_method) mTXColonList);
class_addcreator ((t_newmethod) newMTXColon, gensym("mtx_:"), A_GIMME, 0);
}
void iemtx_colon_setup(void){
mtx_colon_setup();
}
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