From 8b0873392ad0db55fdb9d0cdfc670366bc96a9c9 Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Mon, 26 Apr 2010 03:10:47 +0000 Subject: converted maxlib to use libdir template, in preparations for debianizing it svn path=/trunk/externals/maxlib/; revision=13476 --- nchange.c | 205 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 205 insertions(+) create mode 100644 nchange.c (limited to 'nchange.c') diff --git a/nchange.c b/nchange.c new file mode 100644 index 0000000..57945b1 --- /dev/null +++ b/nchange.c @@ -0,0 +1,205 @@ +/* ------------------------- ignore ------------------------------------------- */ +/* */ +/* A 'new' change object for more than just floats. */ +/* Written by Olaf Matthes */ +/* Get source at http://www.akustische-kunst.org/puredata/maxlib/ */ +/* */ +/* This program is free software; you can redistribute it and/or */ +/* modify it under the terms of the GNU General Public License */ +/* as published by the Free Software Foundation; either version 2 */ +/* of the License, or (at your option) any later version. */ +/* */ +/* This program is distributed in the hope that it will be useful, */ +/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ +/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ +/* GNU General Public License for more details. */ +/* */ +/* You should have received a copy of the GNU General Public License */ +/* along with this program; if not, write to the Free Software */ +/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +/* */ +/* Based on PureData by Miller Puckette and others. */ +/* */ +/* ---------------------------------------------------------------------------- */ + +#define A_LIST 254; +#define A_ANYTHING 255; + +#include "m_pd.h" + +// #include +// #include + +/* -------------------------- nchange ------------------------------ */ +static char *version = "nchange v0.1, written by Olaf Matthes "; + +static t_class *nchange_class; + +typedef struct _nchange +{ + t_object x_obj; + t_atom x_a[256]; + int x_c; + int x_type; +} t_nchange; + +static void *nchange_new(t_symbol *s) +{ + int i; + + t_nchange *x = (t_nchange *)pd_new(nchange_class); + + if(s == gensym("s")) + { + x->x_type = A_SYMBOL; + outlet_new(&x->x_obj, &s_symbol); + } + else if(s == gensym("f")) + { + x->x_type = A_FLOAT; + outlet_new(&x->x_obj, &s_float); + } + else if(s == gensym("l")) + { + x->x_type = A_LIST; + outlet_new(&x->x_obj, &s_list); + } + else + { + x->x_type = A_ANYTHING; + outlet_new(&x->x_obj, &s_anything); + } + + return (x); +} + +static void nchange_bang(t_nchange *x) +{ + if (x->x_type == A_FLOAT) + outlet_float(x->x_obj.ob_outlet, x->x_a->a_w.w_float); + else if (x->x_type == A_SYMBOL) + outlet_symbol(x->x_obj.ob_outlet, x->x_a->a_w.w_symbol); + else + outlet_list(x->x_obj.ob_outlet, NULL, x->x_c, x->x_a); +} + +static void nchange_float(t_nchange *x, t_float f) +{ + if (x->x_type == A_FLOAT) + { + if (f != x->x_a->a_w.w_float) + { + // x->x_f = f; + SETFLOAT(x->x_a, f); + outlet_float(x->x_obj.ob_outlet, x->x_a->a_w.w_float); + } + } +} + +static void nchange_symbol(t_nchange *x, t_symbol *s) +{ + if (x->x_type == A_SYMBOL) + { + if (s != x->x_a->a_w.w_symbol) + { + // x->x_s = s; + SETSYMBOL(x->x_a, s); + outlet_symbol(x->x_obj.ob_outlet, x->x_a->a_w.w_symbol); + } + } +} + +static void nchange_list(t_nchange *x, t_symbol *s, int argc, t_atom *argv) +{ + int i, change = 0; + int c = argc; + + if(c == x->x_c) // same number of elements + for (i = 0; i < c; i++) + { + /* if(x->x_a[i].a_type != argv[i].a_type) + { + change = 1; + break; + } */ + if (x->x_a[i].a_type == A_FLOAT) + { + if (argv[i].a_type != A_FLOAT || x->x_a[i].a_w.w_float != argv[i].a_w.w_float) + { + change = 1; + break; + } + } + else if (x->x_a[i].a_type == A_SYMBOL) + { + if (argv[i].a_type != A_SYMBOL || x->x_a[i].a_w.w_symbol != argv[i].a_w.w_symbol) + { + change = 1; + break; + } + } + } + else change = 1; // different number of elems. + + if (change) + { + x->x_c = c; + for (i = 0; i < c; i++) // same new list + { + x->x_a[i] = argv[i]; + } + outlet_list(x->x_obj.ob_outlet, s, argc, argv); + } +} + +static void nchange_set(t_nchange *x, t_symbol *s, int argc, t_atom *argv) +{ + int i; + + if (x->x_type == A_SYMBOL) + { + SETSYMBOL(x->x_a, argv->a_w.w_symbol); + } + else if (x->x_type == A_FLOAT) + { + SETFLOAT(x->x_a, argv->a_w.w_float); + } + else // list or anything + { + x->x_c = argc; + for (i = 0; i < argc; i++) + { + x->x_a[i] = argv[i]; + } + } +} + +#ifndef MAXLIB +void nchange_setup(void) +{ + nchange_class = class_new(gensym("nchange"), (t_newmethod)nchange_new, 0, + sizeof(t_nchange), 0, A_SYMBOL, 0); + class_addbang(nchange_class, nchange_bang); + class_addfloat(nchange_class, nchange_float); + class_addsymbol(nchange_class, nchange_symbol); + class_addlist(nchange_class, nchange_list); + class_addanything(nchange_class, nchange_list); + class_addmethod(nchange_class, (t_method)nchange_set, gensym("set"), A_GIMME, 0); + + post(version); +} +#else +void maxlib_nchange_setup(void) +{ + nchange_class = class_new(gensym("maxlib_nchange"), (t_newmethod)nchange_new, 0, + sizeof(t_nchange), 0, A_SYMBOL, 0); + class_addcreator((t_newmethod)nchange_new, gensym("nchange"), A_SYMBOL, 0); + class_addbang(nchange_class, nchange_bang); + class_addfloat(nchange_class, nchange_float); + class_addsymbol(nchange_class, nchange_symbol); + class_addlist(nchange_class, nchange_list); + class_addanything(nchange_class, nchange_list); + class_addmethod(nchange_class, (t_method)nchange_set, gensym("set"), A_GIMME, 0); + class_sethelpsymbol(nchange_class, gensym("maxlib/nchange-help.pd")); +} +#endif -- cgit v1.2.1