From d532ab70c9c672647f029c863c80136d525828bf Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?IOhannes=20m=20zm=C3=B6lnig?= Date: Thu, 3 Jan 2008 13:23:32 +0000 Subject: an object to test for equality of matrices svn path=/trunk/externals/iem/iemmatrix/; revision=9116 --- src/mtx_isequal.c | 153 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 153 insertions(+) create mode 100644 src/mtx_isequal.c (limited to 'src/mtx_isequal.c') diff --git a/src/mtx_isequal.c b/src/mtx_isequal.c new file mode 100644 index 0000000..ded85c7 --- /dev/null +++ b/src/mtx_isequal.c @@ -0,0 +1,153 @@ +/* + * 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(); +} -- cgit v1.2.1