Update of /cvsroot/pure-data/externals/iem/iemmatrix/src In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv15248
Added Files: mtx_isequal.c Log Message: an object to test for equality of matrices
--- NEW FILE: mtx_isequal.c --- /* * 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_isequal */
/* mtx_isequal */ static t_class *mtx_isequal_class, *mtx_isequalscalar_class;
static void mtx_isequalscalar_matrix(t_mtx_binscalar *x, t_symbol *s, int argc, t_atom *argv) { int n=argc-2; int row=atom_getfloat(argv), col=atom_getfloat(argv+1);
t_float offset=x->f; t_atom *buf; t_atom *ap=argv+2;
if(argc<2){post("mtx_isequal: crippled matrix");return; }
while(n--){ if(atom_getfloat(ap)!=offset) { outlet_float(x->x_obj.ob_outlet, (t_float)0); return; } ap++; } outlet_float(x->x_obj.ob_outlet, (t_float)1); } static void mtx_isequalscalar_list(t_mtx_binscalar *x, t_symbol *s, int argc, t_atom *argv) { int n=argc; t_atom *ap=argv; t_float offset = x->f;
while(n--){ if(atom_getfloat(ap)!=offset) { outlet_float(x->x_obj.ob_outlet, (t_float)0); return; } ap++; } outlet_float(x->x_obj.ob_outlet, (t_float)1); }
static void mtx_isequal_matrix(t_mtx_binmtx *x, t_symbol *s, int argc, t_atom *argv) { int row=atom_getfloat(argv); int col=atom_getfloat(argv+1); t_atom *m; t_atom *m1 = argv+2; t_atom *m2 = x->m2.atombuffer+2; int n = argc-2;
if (argc<2){ post("mtx_isequal: crippled matrix"); return; } if ((col<1)||(row<1)) { post("mtx_isequal: invalid dimensions"); return; } if (col*row>argc-2){ post("sparse matrix not yet supported : use "mtx_check""); return; }
if ((col!=x->m2.col)||(row!=x->m2.row)){ outlet_float(x->x_obj.ob_outlet, (t_float)0); return; }
while(n--){ if(atom_getfloat(m1++)!=atom_getfloat(m2++)) { outlet_float(x->x_obj.ob_outlet, (t_float)0); return; } }
outlet_float(x->x_obj.ob_outlet, (t_float)1); } static void mtx_isequal_float(t_mtx_binmtx *x, t_float f) { t_matrix *m=&x->m, *m2=&x->m2; t_atom *ap=m2->atombuffer+2; int row2, col2, n;
if (!m2->atombuffer){ outlet_float(x->x_obj.ob_outlet, (t_float)0); return; }
row2=atom_getfloat(m2->atombuffer); col2=atom_getfloat(m2->atombuffer+1);
n=row2*col2;
while(n--){ if(atom_getfloat(ap)!=f) { outlet_float(x->x_obj.ob_outlet, (t_float)0); return; } ap++; } outlet_float(x->x_obj.ob_outlet, (t_float)1); } static void *mtx_isequal_new(t_symbol *s, int argc, t_atom *argv) { if (argc>1) post("mtx_isequal : extra arguments ignored"); if (argc) { t_mtx_binscalar *x = (t_mtx_binscalar *)pd_new(mtx_isequalscalar_class); floatinlet_new(&x->x_obj, &x->f); x->f = atom_getfloatarg(0, argc, argv); outlet_new(&x->x_obj, 0); return(x); } else { t_mtx_binmtx *x = (t_mtx_binmtx *)pd_new(mtx_isequal_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_isequal_setup(void) { mtx_isequal_class = class_new(gensym("mtx_isequal"), (t_newmethod)mtx_isequal_new, (t_method)mtx_binmtx_free, sizeof(t_mtx_binmtx), 0, A_GIMME, 0); class_addmethod(mtx_isequal_class, (t_method)mtx_isequal_matrix, gensym("matrix"), A_GIMME, 0); class_addmethod(mtx_isequal_class, (t_method)mtx_bin_matrix2, gensym(""), A_GIMME, 0); class_addfloat (mtx_isequal_class, mtx_isequal_float); class_addbang (mtx_isequal_class, mtx_binmtx_bang);
mtx_isequalscalar_class = class_new(gensym("mtx_isequal"), 0, (t_method)mtx_binscalar_free, sizeof(t_mtx_binscalar), 0, 0); class_addmethod(mtx_isequalscalar_class, (t_method)mtx_isequalscalar_matrix, gensym("matrix"), A_GIMME, 0); class_addlist (mtx_isequalscalar_class, mtx_isequalscalar_list); class_addbang (mtx_isequalscalar_class, mtx_binscalar_bang);
}
void iemtx_isequal_setup(void) { mtx_isequal_setup(); }