diff options
Diffstat (limited to 'bilex.c')
-rw-r--r-- | bilex.c | 174 |
1 files changed, 87 insertions, 87 deletions
@@ -1,91 +1,91 @@ -/* ---------------------------- rand_bilex ------------------------------------ */
-/* */
-/* rand_bilex generates a bilinear exponentially distributed random variable. */
-/* Written by Olaf Matthes (olaf.matthes@gmx.de) */
-/* Based on code found in Dodge/Jerse "Computer Music" */
-/* 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. */
-/* */
-/* ---------------------------------------------------------------------------- */
+/* ---------------------------- rand_bilex ------------------------------------ */ +/* */ +/* rand_bilex generates a bilinear exponentially distributed random variable. */ +/* Written by Olaf Matthes (olaf.matthes@gmx.de) */ +/* Based on code found in Dodge/Jerse "Computer Music" */ +/* 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. */ +/* */ +/* ---------------------------------------------------------------------------- */ #include "m_pd.h" -#include <stdlib.h>
-#include <time.h>
-#include <math.h>
-
-#define fran() (t_float)rand()/(t_float)RAND_MAX
+#include <stdlib.h> +#include <time.h> +#include <math.h> -static char *version = "bilex v0.1, generates bilinear exponentially distributed random\n"
- " variable, written by Olaf Matthes <olaf.matthes@gmx.de>";
+#define fran() (t_float)rand()/(t_float)RAND_MAX -/* -------------------------- rand_bilex ------------------------------ */
-
-static t_class *rand_bilex_class;
-
-typedef struct _rand_bilex
-{
- t_object x_obj;
- t_float x_lambda;
-} t_rand_bilex;
-
-static void *rand_bilex_new(t_floatarg f)
-{
- t_rand_bilex *x = (t_rand_bilex *)pd_new(rand_bilex_class);
- srand( (unsigned)time( NULL ) );
- floatinlet_new(&x->x_obj, &x->x_lambda);
- outlet_new(&x->x_obj, &s_float);
- x->x_lambda = f;
- return (x);
-}
-
-static void rand_bilex_bang(t_rand_bilex *x)
-{
- t_float u, s = 1, l;
- l = (x->x_lambda <= 0 ? 0.0001 : x->x_lambda);
- do
- {
- u = 2*fran();
- }
- while(u == 0 || u == 2);
- if(u > 1)
- {
- u = 2-u;
- s=-1;
- }
- outlet_float(x->x_obj.ob_outlet, s*log(u)/l);
-}
-
-#ifndef MAXLIB
-void bilex_setup(void)
-{
- rand_bilex_class = class_new(gensym("bilex"), (t_newmethod)rand_bilex_new, 0,
- sizeof(t_rand_bilex), 0, A_DEFFLOAT, 0);
- class_addbang(rand_bilex_class, rand_bilex_bang);
- class_sethelpsymbol(rand_bilex_class, gensym("bilex-help.pd"));
- post(version);
-}
-#else
-void maxlib_bilex_setup(void)
-{
- rand_bilex_class = class_new(gensym("maxlib_bilex"), (t_newmethod)rand_bilex_new, 0,
- sizeof(t_rand_bilex), 0, A_DEFFLOAT, 0);
- class_addbang(rand_bilex_class, rand_bilex_bang);
- class_addcreator((t_newmethod)rand_bilex_new, gensym("bilex"), A_DEFFLOAT, 0);
- class_sethelpsymbol(rand_bilex_class, gensym("maxlib/bilex-help.pd"));
-}
-#endif
+static char *version = "bilex v0.1, generates bilinear exponentially distributed random\n" + " variable, written by Olaf Matthes <olaf.matthes@gmx.de>"; + +/* -------------------------- rand_bilex ------------------------------ */ + +static t_class *rand_bilex_class; + +typedef struct _rand_bilex +{ + t_object x_obj; + t_float x_lambda; +} t_rand_bilex; + +static void *rand_bilex_new(t_floatarg f) +{ + t_rand_bilex *x = (t_rand_bilex *)pd_new(rand_bilex_class); + srand( (unsigned)time( NULL ) ); + floatinlet_new(&x->x_obj, &x->x_lambda); + outlet_new(&x->x_obj, &s_float); + x->x_lambda = f; + return (x); +} + +static void rand_bilex_bang(t_rand_bilex *x) +{ + t_float u, s = 1, l; + l = (x->x_lambda <= 0 ? 0.0001 : x->x_lambda); + do + { + u = 2*fran(); + } + while(u == 0 || u == 2); + if(u > 1) + { + u = 2-u; + s=-1; + } + outlet_float(x->x_obj.ob_outlet, s*log(u)/l); +} + +#ifndef MAXLIB +void bilex_setup(void) +{ + rand_bilex_class = class_new(gensym("bilex"), (t_newmethod)rand_bilex_new, 0, + sizeof(t_rand_bilex), 0, A_DEFFLOAT, 0); + class_addbang(rand_bilex_class, rand_bilex_bang); + class_sethelpsymbol(rand_bilex_class, gensym("bilex-help.pd")); + logpost(NULL, 4, version); +} +#else +void maxlib_bilex_setup(void) +{ + rand_bilex_class = class_new(gensym("maxlib_bilex"), (t_newmethod)rand_bilex_new, 0, + sizeof(t_rand_bilex), 0, A_DEFFLOAT, 0); + class_addbang(rand_bilex_class, rand_bilex_bang); + class_addcreator((t_newmethod)rand_bilex_new, gensym("bilex"), A_DEFFLOAT, 0); + class_sethelpsymbol(rand_bilex_class, gensym("maxlib/bilex-help.pd")); +} +#endif |