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-rw-r--r--src/iemlib1/forpp.c192
1 files changed, 192 insertions, 0 deletions
diff --git a/src/iemlib1/forpp.c b/src/iemlib1/forpp.c
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--- /dev/null
+++ b/src/iemlib1/forpp.c
@@ -0,0 +1,192 @@
+/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
+
+iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2003 */
+
+#ifdef NT
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+
+#include "m_pd.h"
+#include "iemlib.h"
+#include <math.h>
+#include <stdio.h>
+#include <string.h>
+
+/* -------------------------- forpp ------------------------------ */
+
+typedef struct _forpp
+{
+ t_object x_obj;
+ int x_beg;
+ int x_end;
+ float x_delay;
+ int x_cur;
+ int x_incr;
+ void *x_out_end;
+ void *x_clock;
+ void *x_clock2;
+} t_forpp;
+
+static t_class *forpp_class;
+
+static void forpp_tick2(t_forpp *x)
+{
+ outlet_bang(x->x_out_end);
+ clock_unset(x->x_clock2);
+}
+
+static void forpp_tick(t_forpp *x)
+{
+ outlet_float(x->x_obj.ob_outlet, x->x_cur);
+ x->x_cur += x->x_incr;
+ if(x->x_incr > 0)
+ {
+ if(x->x_cur <= x->x_end)
+ clock_delay(x->x_clock, x->x_delay);
+ else
+ {
+ clock_unset(x->x_clock);
+ clock_delay(x->x_clock2, x->x_delay);
+ }
+ }
+ else
+ {
+ if(x->x_cur >= x->x_end)
+ clock_delay(x->x_clock, x->x_delay);
+ else
+ {
+ clock_unset(x->x_clock);
+ clock_delay(x->x_clock2, x->x_delay);
+ }
+ }
+}
+
+static void forpp_bang(t_forpp *x)
+{
+ x->x_cur = x->x_beg;
+ outlet_float(x->x_obj.ob_outlet, x->x_cur);
+ x->x_cur += x->x_incr;
+ if(x->x_incr > 0)
+ {
+ if(x->x_cur <= x->x_end)
+ clock_delay(x->x_clock, x->x_delay);
+ else
+ {
+ clock_unset(x->x_clock);
+ clock_delay(x->x_clock2, x->x_delay);
+ }
+ }
+ else
+ {
+ if(x->x_cur >= x->x_end)
+ clock_delay(x->x_clock, x->x_delay);
+ else
+ {
+ clock_unset(x->x_clock);
+ clock_delay(x->x_clock2, x->x_delay);
+ }
+ }
+
+}
+
+static void forpp_start(t_forpp *x)
+{
+ forpp_bang(x);
+}
+
+static void forpp_stop(t_forpp *x)
+{
+ if(x->x_incr > 0)
+ x->x_cur = x->x_end + 1;
+ else
+ x->x_cur = x->x_end - 1;
+ clock_unset(x->x_clock);
+ clock_unset(x->x_clock2);
+}
+
+static void forpp_float(t_forpp *x, t_float beg)
+{
+ x->x_beg = (int)beg;
+ if(x->x_end < x->x_beg)
+ x->x_incr = -1;
+ else
+ x->x_incr = 1;
+}
+
+static void forpp_ft1(t_forpp *x, t_float end)
+{
+ x->x_end = (int)end;
+ if(x->x_end < x->x_beg)
+ x->x_incr = -1;
+ else
+ x->x_incr = 1;
+}
+
+static void forpp_ft2(t_forpp *x, t_float delay)
+{
+ if(delay < 0.0)
+ delay = 0.0;
+ x->x_delay = delay;
+}
+
+static void forpp_list(t_forpp *x, t_symbol *s, int argc, t_atom *argv)
+{
+ if(argc == 2)
+ {
+ forpp_float(x, atom_getfloatarg(0, argc, argv));
+ forpp_ft1(x, atom_getfloatarg(1, argc, argv));
+ }
+ else if(argc == 3)
+ {
+ forpp_float(x, atom_getfloatarg(0, argc, argv));
+ forpp_ft1(x, atom_getfloatarg(1, argc, argv));
+ forpp_ft2(x, atom_getfloatarg(2, argc, argv));
+ }
+}
+
+static void *forpp_new(t_floatarg beg, t_floatarg end, t_floatarg delay)
+{
+ t_forpp *x = (t_forpp *)pd_new(forpp_class);
+
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1"));
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft2"));
+ outlet_new(&x->x_obj, &s_float);
+ x->x_out_end = outlet_new(&x->x_obj, &s_bang);
+ x->x_clock = clock_new(x, (t_method)forpp_tick);
+ x->x_clock2 = clock_new(x, (t_method)forpp_tick2);
+ x->x_beg = (int)beg;
+ x->x_end = (int)end;
+ if(x->x_end < x->x_beg)
+ x->x_incr = -1;
+ else
+ x->x_incr = 1;
+ if(delay < 0.0)
+ delay = 0.0;
+ x->x_delay = delay;
+ x->x_cur = x->x_beg;
+ return(x);
+}
+
+static void forpp_ff(t_forpp *x)
+{
+ clock_free(x->x_clock);
+ clock_free(x->x_clock2);
+}
+
+void forpp_setup(void)
+{
+ forpp_class = class_new(gensym("for++"), (t_newmethod)forpp_new,
+ (t_method)forpp_ff, sizeof(t_forpp),
+ 0, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0);
+ class_addbang(forpp_class, forpp_bang);
+ class_addfloat(forpp_class, forpp_float);
+ class_addlist(forpp_class, forpp_list);
+ class_addmethod(forpp_class, (t_method)forpp_start, gensym("start"), 0);
+ class_addmethod(forpp_class, (t_method)forpp_stop, gensym("stop"), 0);
+ class_addmethod(forpp_class, (t_method)forpp_ft1, gensym("ft1"), A_FLOAT, 0);
+ class_addmethod(forpp_class, (t_method)forpp_ft2, gensym("ft2"), A_FLOAT, 0);
+ class_sethelpsymbol(forpp_class, gensym("iemhelp/help-for++"));
+}