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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_mul
mtx_*
mtx_.*
mtx_./
matrix multiplication
*/
/* mtx_mul */
static t_class *mtx_mul_class, *mtx_mulelement_class, *mtx_mulscalar_class;
static void mtx_mul_matrix(t_mtx_binmtx *x, t_symbol *s, int argc, t_atom *argv)
{
t_matrix *m=&x->m, *m2=&x->m2;
t_atom *ap, *ap1=argv+2, *ap2=m2->atombuffer+2;
int row=atom_getfloat(argv), col=atom_getfloat(argv+1);
int row2, col2, n, r, c;
if (!m2->atombuffer){ pd_error(x, "right-hand matrix is missing"); return; }
if (argc<2){ pd_error(x, "crippled matrix"); return; }
if ((col<1)||(row<1)){pd_error(x, "invalid dimensions"); return; }
if (col*row>argc-2){ pd_error(x, "sparse matrix not yet supported : use \"mtx_check\""); return; }
row2=atom_getfloat(m2->atombuffer);
col2=atom_getfloat(m2->atombuffer+1);
if (col!=row2) { pd_error(x, "matrix dimensions do not match !"); return; }
adjustsize(m, row, col2);
ap=m->atombuffer+2;
for(r=0;r<row;r++)
for(c=0;c<col2;c++) {
t_matrixfloat sum = 0.f;
for(n=0;n<col;n++)sum+=(t_matrixfloat)atom_getfloat(ap1+col*r+n)*atom_getfloat(ap2+col2*n+c);
SETFLOAT(ap+col2*r+c,sum);
}
outlet_anything(x->x_obj.ob_outlet, gensym("matrix"), m->row*m->col+2, m->atombuffer);
}
static void mtx_mul_float(t_mtx_binmtx *x, t_float f)
{
t_matrix *m=&x->m, *m2=&x->m2;
t_atom *ap, *ap2=m2->atombuffer+2;
int row2, col2, n;
if (!m2->atombuffer){ pd_error(x, "right-hand matrix is missing"); return; }
row2=atom_getfloat(m2->atombuffer);
col2=atom_getfloat(m2->atombuffer+1);
adjustsize(m, row2, col2);
ap=m->atombuffer+2;
n=row2*col2;
while(n--){
SETFLOAT(ap, f*atom_getfloat(ap2++));
ap++;
}
outlet_anything(x->x_obj.ob_outlet, gensym("matrix"), m->row*m->col+2, m->atombuffer);
}
static void mtx_mulelement_matrix(t_mtx_binmtx *x, t_symbol *s, int argc, t_atom *argv)
{
int row=atom_getfloat(argv++);
int col=atom_getfloat(argv++);
t_atom *m;
t_atom *m2 = x->m2.atombuffer+2;
int n = argc-2;
if (argc<2){ pd_error(x, "crippled matrix"); return; }
if ((col<1)||(row<1)) { pd_error(x, "invalid dimensions"); return; }
if (col*row>argc-2){ pd_error(x, "sparse matrix not yet supported : use \"mtx_check\""); return; }
if (!(x->m2.col*x->m2.row)) {
adjustsize(&x->m, row, col);
matrix_set(&x->m, 0);
outlet_anything(x->x_obj.ob_outlet, gensym("matrix"), argc, x->m.atombuffer);
return;
}
if ((col!=x->m2.col)||(row!=x->m2.row)){ pd_error(x, "matrix dimension do not match"); /* LATER SOLVE THIS */ return; }
adjustsize(&x->m, row, col);
m = x->m.atombuffer+2;
while(n--){
t_float f = atom_getfloat(argv++)*atom_getfloat(m2++);
SETFLOAT(m, f);
m++;
}
outlet_anything(x->x_obj.ob_outlet, gensym("matrix"), argc, x->m.atombuffer);
}
static void mtx_mulscalar_matrix(t_mtx_binscalar *x, t_symbol *s, int argc, t_atom *argv)
{
int n=argc-2;
t_atom *m;
t_float factor = x->f;
int row=atom_getfloat(argv++);
int col=atom_getfloat(argv++);
if (argc<2){
pd_error(x, "crippled matrix");
return;
}
adjustsize(&x->m, row, col);
m = x->m.atombuffer+2;
while(n--){
m->a_type = A_FLOAT;
(m++)->a_w.w_float = atom_getfloat(argv++)*factor;
}
outlet_anything(x->x_obj.ob_outlet, gensym("matrix"), argc, x->m.atombuffer);
}
static void mtx_mulscalar_list(t_mtx_binscalar *x, t_symbol *s, int argc, t_atom *argv)
{
int n=argc;
t_atom *m;
t_float factor = x->f;
adjustsize(&x->m, 1, argc);
m = x->m.atombuffer;
while(n--){
m->a_type = A_FLOAT;
(m++)->a_w.w_float = atom_getfloat(argv++)*factor;
}
outlet_list(x->x_obj.ob_outlet, gensym("list"), argc, x->m.atombuffer);
}
static void *mtx_mul_new(t_symbol *s, int argc, t_atom *argv)
{
if (argc>1) error("[%s]: extra arguments ignored", s->s_name);
if (argc) {
t_mtx_binscalar *x = (t_mtx_binscalar *)pd_new(mtx_mulscalar_class);
floatinlet_new(&x->x_obj, &x->f);
x->f = atom_getfloatarg(0, argc, argv);
outlet_new(&x->x_obj, 0);
return(x);
} else {
if (s->s_name[4]=='.') {
/* element mul */
t_matrix *x = (t_matrix *)pd_new(mtx_mulelement_class);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("matrix"), gensym(""));
outlet_new(&x->x_obj, 0);
x->col = x->row = 0;
x->atombuffer = 0;
return(x);
} else {
t_mtx_binmtx *x = (t_mtx_binmtx *)pd_new(mtx_mul_class);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("matrix"), gensym(""));
outlet_new(&x->x_obj, 0);
x->m.col = x->m.row = x->m2.col = x->m2.row = 0;
x->m.atombuffer = x->m2.atombuffer = 0;
return (x);
}
}
}
void mtx_mul_setup(void)
{
mtx_mul_class = class_new(gensym("mtx_mul"), (t_newmethod)mtx_mul_new, (t_method)mtx_binmtx_free,
sizeof(t_mtx_binmtx), 0, A_GIMME, 0);
class_addcreator((t_newmethod)mtx_mul_new, gensym("mtx_*"), A_GIMME,0);
class_addmethod(mtx_mul_class, (t_method)mtx_mul_matrix, gensym("matrix"), A_GIMME, 0);
class_addmethod(mtx_mul_class, (t_method)mtx_bin_matrix2, gensym(""), A_GIMME, 0);
class_addfloat (mtx_mul_class, mtx_mul_float);
class_addbang (mtx_mul_class, mtx_binmtx_bang);
mtx_mulelement_class = class_new(gensym("mtx_.*"), (t_newmethod)mtx_mul_new, (t_method)mtx_binmtx_free,
sizeof(t_mtx_binmtx), 0, A_GIMME, 0);
class_addmethod(mtx_mulelement_class, (t_method)mtx_mulelement_matrix, gensym("matrix"), A_GIMME, 0);
class_addmethod(mtx_mulelement_class, (t_method)mtx_bin_matrix2, gensym(""), A_GIMME, 0);
class_addfloat (mtx_mulelement_class, mtx_mul_float);
class_addbang (mtx_mulelement_class, mtx_binmtx_bang);
class_sethelpsymbol(mtx_mulelement_class, gensym("mtx_mul-help"));
mtx_mulscalar_class = class_new(gensym("mtx_mul"), 0, (t_method)mtx_binscalar_free,
sizeof(t_mtx_binscalar), 0, 0);
class_addmethod(mtx_mulscalar_class, (t_method)mtx_mulscalar_matrix, gensym("matrix"), A_GIMME, 0);
class_addlist (mtx_mulscalar_class, mtx_mulscalar_list);
class_addbang (mtx_mulscalar_class, mtx_binscalar_bang);
}
/* mtx_div */
static t_class *mtx_divelement_class, *mtx_divscalar_class;
static void mtx_divelement_matrix(t_mtx_binmtx *x, t_symbol *s, int argc, t_atom *argv)
{
int row=atom_getfloat(argv++);
int col=atom_getfloat(argv++);
t_atom *m;
t_atom *m2 = x->m2.atombuffer+2;
int n = argc-2;
if (argc<2){ pd_error(x, "crippled matrix"); return; }
if ((col<1)||(row<1)) { pd_error(x, "invalid dimensions"); return; }
if (col*row>argc-2){ pd_error(x, "sparse matrix not yet supported : use \"mtx_check\""); return; }
if (!(x->m2.col*x->m2.row)) {
adjustsize(&x->m, row, col);
matrix_set(&x->m, 0);
outlet_anything(x->x_obj.ob_outlet, gensym("matrix"), argc, x->m.atombuffer);
return;
}
if ((col!=x->m2.col)||(row!=x->m2.row)){ pd_error(x, "matrix dimension do not match"); /* LATER SOLVE THIS */ return; }
adjustsize(&x->m, row, col);
m = x->m.atombuffer+2;
while(n--){
t_float f = atom_getfloat(argv++)/atom_getfloat(m2++);
SETFLOAT(m, f);
m++;
}
outlet_anything(x->x_obj.ob_outlet, gensym("matrix"), argc, x->m.atombuffer);
}
static void mtx_divelement_float(t_mtx_binmtx *x, t_float f)
{
t_matrix *m=&x->m, *m2=&x->m2;
t_atom *ap, *ap2=m2->atombuffer+2;
int row2, col2, n;
if (!m2->atombuffer){ pd_error(x, "right-hand matrix missing"); return; }
row2=atom_getfloat(m2->atombuffer);
col2=atom_getfloat(m2->atombuffer+1);
adjustsize(m, row2, col2);
ap=m->atombuffer+2;
n=row2*col2;
while(n--){
SETFLOAT(ap, f/atom_getfloat(ap2++));
ap++;
}
outlet_anything(x->x_obj.ob_outlet, gensym("matrix"), m->row*m->col+2, m->atombuffer);
}
static void mtx_divscalar_matrix(t_mtx_binscalar *x, t_symbol *s, int argc, t_atom *argv)
{
int n=argc-2;
t_atom *m;
t_float factor = 1.0/x->f;
int row=atom_getfloat(argv++);
int col=atom_getfloat(argv++);
if (argc<2){
pd_error(x, "crippled matrix");
return;
}
adjustsize(&x->m, row, col);
m = x->m.atombuffer+2;
while(n--){
m->a_type = A_FLOAT;
(m++)->a_w.w_float = atom_getfloat(argv++)*factor;
}
outlet_anything(x->x_obj.ob_outlet, gensym("matrix"), argc, x->m.atombuffer);
}
static void mtx_divscalar_list(t_mtx_binscalar *x, t_symbol *s, int argc, t_atom *argv)
{
int n=argc;
t_atom *m;
t_float factor = 1.0/x->f;
adjustsize(&x->m, 1, argc);
m = x->m.atombuffer;
while(n--){
m->a_type = A_FLOAT;
(m++)->a_w.w_float = atom_getfloat(argv++)*factor;
}
outlet_list(x->x_obj.ob_outlet, gensym("list"), argc, x->m.atombuffer);
}
static void *mtx_div_new(t_symbol *s, int argc, t_atom *argv)
{
if (argc>1) error("[%s] extra arguments ignored", s->s_name);
if (argc) {
/* scalar division */
t_mtx_binscalar *x = (t_mtx_binscalar *)pd_new(mtx_divscalar_class);
floatinlet_new(&x->x_obj, &x->f);
x->f = atom_getfloatarg(0, argc, argv);
outlet_new(&x->x_obj, 0);
return(x);
} else {
/* element division */
t_matrix *x = (t_matrix *)pd_new(mtx_divelement_class);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("matrix"), gensym(""));
outlet_new(&x->x_obj, 0);
x->col = x->row = 0;
x->atombuffer = 0;
return(x);
}
}
void mtx_div_setup(void)
{
mtx_divelement_class = class_new(gensym("mtx_./"), (t_newmethod)mtx_div_new, (t_method)mtx_binmtx_free,
sizeof(t_mtx_binmtx), 0, A_GIMME, 0);
class_addmethod(mtx_divelement_class, (t_method)mtx_divelement_matrix, gensym("matrix"), A_GIMME, 0);
class_addmethod(mtx_divelement_class, (t_method)mtx_bin_matrix2, gensym(""), A_GIMME, 0);
class_addfloat (mtx_divelement_class, mtx_divelement_float);
class_addbang (mtx_divelement_class, mtx_binmtx_bang);
mtx_divscalar_class = class_new(gensym("mtx_./"), 0, (t_method)mtx_binscalar_free,
sizeof(t_mtx_binscalar), 0, 0);
class_addmethod(mtx_divscalar_class, (t_method)mtx_divscalar_matrix, gensym("matrix"), A_GIMME, 0);
class_addlist (mtx_divscalar_class, mtx_divscalar_list);
class_addbang (mtx_divscalar_class, mtx_binscalar_bang);
class_sethelpsymbol(mtx_divelement_class, gensym("mtx_mul-help"));
class_sethelpsymbol(mtx_divscalar_class, gensym("mtx_mul-help"));
}
void iemtx_mul_setup(void)
{
mtx_mul_setup();
mtx_div_setup();
}
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