diff options
Diffstat (limited to 'edge.c')
-rw-r--r-- | edge.c | 164 |
1 files changed, 82 insertions, 82 deletions
@@ -1,82 +1,82 @@ -/* --------------------------- edge ----------------------------------------- */
-/* */
-/* Detect rising or falling edge of float input. */
-/* Written by Olaf Matthes (olaf.matthes@gmx.de) */
-/* 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 <stdio.h>
-
-static char *version = "edge v0.1, written by Olaf Matthes <olaf.matthes@gmx.de>";
-
-typedef struct edge
-{
- t_object x_ob;
- t_outlet *x_out1; /* bang on rising edge */
- t_outlet *x_out2; /* bang on falling edge */
- t_float x_lastval; /* last input value */
-} t_edge;
-
-static void edge_float(t_edge *x, t_floatarg f)
-{
- if((x->x_lastval <= 0) && (f >= 1)) /* rising edge */
- outlet_bang(x->x_out1);
- else if((x->x_lastval >= 1) && (f <= 0)) /* falling edge */
- outlet_bang(x->x_out2);
-
- x->x_lastval = f; /* save last value */
-}
-
-static t_class *edge_class;
-
-static void *edge_new(t_floatarg f)
-{
- int i;
-
- t_edge *x = (t_edge *)pd_new(edge_class);
- x->x_out1 = outlet_new(&x->x_ob, gensym("bang"));
- x->x_out2 = outlet_new(&x->x_ob, gensym("bang"));
-
- x->x_lastval = f;
-
- return (void *)x;
-}
-
-#ifndef MAXLIB
-void edge_setup(void)
-{
- edge_class = class_new(gensym("edge"), (t_newmethod)edge_new,
- 0, sizeof(t_edge), 0, A_DEFFLOAT, 0);
- class_addfloat(edge_class, edge_float);
-
- post(version);
-}
-#else
-void maxlib_edge_setup(void)
-{
- edge_class = class_new(gensym("maxlib_edge"), (t_newmethod)edge_new,
- 0, sizeof(t_edge), 0, A_DEFFLOAT, 0);
- class_addfloat(edge_class, edge_float);
- class_addcreator((t_newmethod)edge_new, gensym("edge"), A_DEFFLOAT, 0);
- class_sethelpsymbol(edge_class, gensym("maxlib/edge-help.pd"));
-}
-#endif
-
+/* --------------------------- edge ----------------------------------------- */ +/* */ +/* Detect rising or falling edge of float input. */ +/* Written by Olaf Matthes (olaf.matthes@gmx.de) */ +/* 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 <stdio.h> + +static char *version = "edge v0.1, written by Olaf Matthes <olaf.matthes@gmx.de>"; + +typedef struct edge +{ + t_object x_ob; + t_outlet *x_out1; /* bang on rising edge */ + t_outlet *x_out2; /* bang on falling edge */ + t_float x_lastval; /* last input value */ +} t_edge; + +static void edge_float(t_edge *x, t_floatarg f) +{ + if((x->x_lastval <= 0) && (f >= 1)) /* rising edge */ + outlet_bang(x->x_out1); + else if((x->x_lastval >= 1) && (f <= 0)) /* falling edge */ + outlet_bang(x->x_out2); + + x->x_lastval = f; /* save last value */ +} + +static t_class *edge_class; + +static void *edge_new(t_floatarg f) +{ + int i; + + t_edge *x = (t_edge *)pd_new(edge_class); + x->x_out1 = outlet_new(&x->x_ob, gensym("bang")); + x->x_out2 = outlet_new(&x->x_ob, gensym("bang")); + + x->x_lastval = f; + + return (void *)x; +} + +#ifndef MAXLIB +void edge_setup(void) +{ + edge_class = class_new(gensym("edge"), (t_newmethod)edge_new, + 0, sizeof(t_edge), 0, A_DEFFLOAT, 0); + class_addfloat(edge_class, edge_float); + + logpost(NULL, 4, version); +} +#else +void maxlib_edge_setup(void) +{ + edge_class = class_new(gensym("maxlib_edge"), (t_newmethod)edge_new, + 0, sizeof(t_edge), 0, A_DEFFLOAT, 0); + class_addfloat(edge_class, edge_float); + class_addcreator((t_newmethod)edge_new, gensym("edge"), A_DEFFLOAT, 0); + class_sethelpsymbol(edge_class, gensym("maxlib/edge-help.pd")); +} +#endif + |