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/*
* iemmatrix
*
* objects for manipulating simple matrices
* mostly refering to matlab/octave matrix functions
* this functions depends on the GNU scientific library
*
* Copyright (c) 2009, 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"
#include <stdlib.h>
#include "mtx_sh/sharmonics.c"
#include "mtx_sh/legendre_a.c"
#include "mtx_sh/chebyshev12.c"
#include "mtx_sh/sharmonics_normalization.c"
static t_class *mtx_sh_class;
typedef struct _MTXSh_ MTXSh;
struct _MTXSh_
{
t_object x_obj;
t_outlet *list_sh_out;
t_atom *list_sh;
double *phi;
double *theta;
SHWorkSpace *ws;
size_t nmax;
size_t l;
};
static void allocMTXdata (MTXSh *x)
{
x->phi=(double*)calloc(x->l,sizeof(double));
x->theta=(double*)calloc(x->l,sizeof(double));
x->ws=sharmonics_alloc(x->nmax,x->l);
x->list_sh=(t_atom*)calloc(x->l*(x->nmax+1)*(x->nmax+1)+2,sizeof(t_atom));
}
static void deleteMTXShdata (MTXSh *x)
{
if (x->phi!=0)
free(x->phi);
if (x->theta!=0)
free(x->theta);
if (x->list_sh!=0)
free(x->list_sh);
sharmonics_free(x->ws);
x->ws=0;
x->list_sh=0;
x->theta=0;
x->phi=0;
}
static void *newMTXSh (t_symbol *s, int argc, t_atom *argv)
{
int nmax;
MTXSh *x = (MTXSh *) pd_new (mtx_sh_class);
x->list_sh_out = outlet_new (&x->x_obj, gensym("matrix"));
x->list_sh = 0;
x->phi = 0;
x->theta = 0;
x->ws = 0;
x->l=0;
nmax=(int) atom_getfloat(argv);
post("mtx_sh order %d",nmax);
if (nmax<0)
nmax=0;
x->nmax=nmax;
return ((void *) x);
}
static void mTXShBang (MTXSh *x)
{
if (x->list_sh!=0) {
outlet_anything(x->list_sh_out, gensym("matrix"), x->l*(x->nmax+1)*(x->nmax+1)+2, x->list_sh);
}
}
static void mTXShMatrix (MTXSh *x, t_symbol *s,
int argc, t_atom *argv)
{
int rows = atom_getint (argv++);
int columns = atom_getint (argv++);
int size = rows * columns;
int in_size = argc-2;
int n;
/* size check */
if (!size)
post("mtx_sh: invalid dimensions");
else if (in_size<size)
post("mtx_sh: sparse matrix not yet supported: use \"mtx_check\"");
else if ((rows!=2)||(columns<1))
post("mtx_sh: 2 X L matrix expected with phi and theta vector, but got more rows/no entries");
else {
if (x->l!=columns) {
deleteMTXShdata(x);
x->l=columns;
allocMTXdata(x);
}
for (n=0;n<x->l;n++) {
x->phi[n]=(double) atom_getfloat(argv+n);
x->theta[n]=(double) atom_getfloat(argv+columns);
}
if (x->ws!=0) {
sharmonics(x->phi, x->theta, x->ws);
in_size=x->l*(x->nmax+1)*(x->nmax+1);
SETFLOAT(x->list_sh,(float)x->l);
SETFLOAT(x->list_sh+1,(float)(x->nmax+1)*(x->nmax+1));
for (n=0;n<in_size; n++)
SETFLOAT(x->list_sh+n+2,(float)x->ws->y[n]);
mTXShBang(x);
}
else
post("mtx_sh: memory error, no operation");
}
}
void mtx_sh_setup (void)
{
mtx_sh_class = class_new
(gensym("mtx_sh"),
(t_newmethod) newMTXSh,
(t_method) deleteMTXShdata,
sizeof (MTXSh),
CLASS_DEFAULT, A_GIMME, 0);
class_addbang (mtx_sh_class, (t_method) mTXShBang);
class_addmethod (mtx_sh_class, (t_method) mTXShMatrix, gensym("matrix"), A_GIMME,0);
}
void iemtx_sh_setup(void){
mtx_sh_setup();
}
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