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-rw-r--r--pd/src/x_misc.c319
1 files changed, 319 insertions, 0 deletions
diff --git a/pd/src/x_misc.c b/pd/src/x_misc.c
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--- /dev/null
+++ b/pd/src/x_misc.c
@@ -0,0 +1,319 @@
+/* Copyright (c) 1997-1999 Miller Puckette.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
+
+/* misc. */
+
+#include "m_imp.h"
+#include <math.h>
+#include <stdio.h>
+#include <string.h>
+#ifdef UNIX
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/times.h>
+#include <sys/param.h>
+#endif
+#ifdef NT
+#include <wtypes.h>
+#include <time.h>
+#endif
+
+#if defined (MACOSX) || defined (__FreeBSD__)
+#define HZ CLK_TCK
+#endif
+
+/* -------------------------- random ------------------------------ */
+/* this is strictly homebrew and untested. */
+
+static t_class *random_class;
+
+typedef struct _random
+{
+ t_object x_obj;
+ t_float x_f;
+ unsigned int x_state;
+} t_random;
+
+
+static int makeseed(void)
+{
+ static unsigned int random_nextseed = 1489853723;
+ random_nextseed = random_nextseed * 435898247 + 938284287;
+ return (random_nextseed & 0x7fffffff);
+}
+
+static void *random_new(t_floatarg f)
+{
+ t_random *x = (t_random *)pd_new(random_class);
+ x->x_f = f;
+ x->x_state = makeseed();
+ floatinlet_new(&x->x_obj, &x->x_f);
+ outlet_new(&x->x_obj, &s_float);
+ return (x);
+}
+
+static void random_bang(t_random *x)
+{
+ int n = x->x_f, nval;
+ int range = (n < 1 ? 1 : n);
+ unsigned int randval = x->x_state;
+ x->x_state = randval = randval * 472940017 + 832416023;
+ nval = ((double)range) * ((double)randval)
+ * (1./4294967296.);
+ if (nval >= range) nval = range-1;
+ outlet_float(x->x_obj.ob_outlet, nval);
+}
+
+static void random_seed(t_random *x, float f, float glob)
+{
+ x->x_state = f;
+}
+
+static void random_setup(void)
+{
+ random_class = class_new(gensym("random"), (t_newmethod)random_new, 0,
+ sizeof(t_random), 0, A_DEFFLOAT, 0);
+ class_addbang(random_class, random_bang);
+ class_addmethod(random_class, (t_method)random_seed,
+ gensym("seed"), A_FLOAT, 0);
+}
+
+
+/* -------------------------- loadbang ------------------------------ */
+static t_class *loadbang_class;
+
+typedef struct _loadbang
+{
+ t_object x_obj;
+} t_loadbang;
+
+static void *loadbang_new(void)
+{
+ t_loadbang *x = (t_loadbang *)pd_new(loadbang_class);
+ outlet_new(&x->x_obj, &s_bang);
+ return (x);
+}
+
+static void loadbang_loadbang(t_loadbang *x)
+{
+ if (!sys_noloadbang)
+ outlet_bang(x->x_obj.ob_outlet);
+}
+
+static void loadbang_setup(void)
+{
+ loadbang_class = class_new(gensym("loadbang"), (t_newmethod)loadbang_new, 0,
+ sizeof(t_loadbang), 0, 0);
+ class_addmethod(loadbang_class, (t_method)loadbang_loadbang,
+ gensym("loadbang"), 0);
+}
+
+/* ------------- namecanvas (delete this later) --------------------- */
+static t_class *namecanvas_class;
+
+typedef struct _namecanvas
+{
+ t_object x_obj;
+ t_symbol *x_sym;
+ t_pd *x_owner;
+} t_namecanvas;
+
+static void *namecanvas_new(t_symbol *s)
+{
+ t_namecanvas *x = (t_namecanvas *)pd_new(namecanvas_class);
+ x->x_owner = (t_pd *)canvas_getcurrent();
+ x->x_sym = s;
+ if (*s->s_name) pd_bind(x->x_owner, s);
+ return (x);
+}
+
+static void namecanvas_free(t_namecanvas *x)
+{
+ if (*x->x_sym->s_name) pd_unbind(x->x_owner, x->x_sym);
+}
+
+static void namecanvas_setup(void)
+{
+ namecanvas_class = class_new(gensym("namecanvas"),
+ (t_newmethod)namecanvas_new, (t_method)namecanvas_free,
+ sizeof(t_namecanvas), CLASS_NOINLET, A_DEFSYM, 0);
+}
+
+/* ---------------serial ports (NT only -- hack) ------------------------- */
+#define MAXSERIAL 100
+
+static t_class *serial_class;
+
+typedef struct _serial
+{
+ t_object x_obj;
+ int x_portno;
+ int x_open;
+} t_serial;
+
+static void serial_float(t_serial *x, t_float f)
+{
+ int n = f;
+ char message[MAXSERIAL * 4 + 100];
+ if (!x->x_open)
+ {
+ sys_vgui("com%d_open\n", x->x_portno);
+ x->x_open = 1;
+ }
+ sprintf(message, "com%d_send \"\\%3.3o\"\n", x->x_portno, n);
+ sys_gui(message);
+}
+
+static void *serial_new(t_floatarg fportno)
+{
+ int portno = fportno;
+ t_serial *x = (t_serial *)pd_new(serial_class);
+ if (!portno) portno = 1;
+ x->x_portno = portno;
+ x->x_open = 0;
+ return (x);
+}
+
+static void serial_setup(void)
+{
+ serial_class = class_new(gensym("serial"), (t_newmethod)serial_new, 0,
+ sizeof(t_serial), 0, A_DEFFLOAT, 0);
+ class_addfloat(serial_class, serial_float);
+}
+
+/* -------------------------- cputime ------------------------------ */
+
+static t_class *cputime_class;
+
+typedef struct _cputime
+{
+ t_object x_obj;
+#ifdef UNIX
+ struct tms x_setcputime;
+#endif
+#ifdef NT
+ LARGE_INTEGER x_kerneltime;
+ LARGE_INTEGER x_usertime;
+ int x_warned;
+#endif
+} t_cputime;
+
+static void cputime_bang(t_cputime *x)
+{
+#ifdef UNIX
+ times(&x->x_setcputime);
+#endif
+#ifdef NT
+ FILETIME ignorethis, ignorethat;
+ BOOL retval;
+ retval = GetProcessTimes(GetCurrentProcess(), &ignorethis, &ignorethat,
+ (FILETIME *)&x->x_kerneltime, (FILETIME *)&x->x_usertime);
+ if (!retval)
+ {
+ if (!x->x_warned)
+ post("cputime is apparently not supported on your platform");
+ x->x_warned = 1;
+ x->x_kerneltime.QuadPart = 0;
+ x->x_usertime.QuadPart = 0;
+ }
+#endif
+}
+
+static void cputime_bang2(t_cputime *x)
+{
+#ifdef UNIX
+ float elapsedcpu;
+ struct tms newcputime;
+ times(&newcputime);
+ elapsedcpu = 1000 * (
+ newcputime.tms_utime + newcputime.tms_stime -
+ x->x_setcputime.tms_utime - x->x_setcputime.tms_stime) / HZ;
+ outlet_float(x->x_obj.ob_outlet, elapsedcpu);
+#endif
+#ifdef NT
+ float elapsedcpu;
+ FILETIME ignorethis, ignorethat;
+ LARGE_INTEGER usertime, kerneltime;
+ BOOL retval;
+
+ retval = GetProcessTimes(GetCurrentProcess(), &ignorethis, &ignorethat,
+ (FILETIME *)&kerneltime, (FILETIME *)&usertime);
+ if (retval)
+ elapsedcpu = 0.0001 *
+ ((kerneltime.QuadPart - x->x_kerneltime.QuadPart) +
+ (usertime.QuadPart - x->x_usertime.QuadPart));
+ else elapsedcpu = 0;
+ outlet_float(x->x_obj.ob_outlet, elapsedcpu);
+#endif
+}
+
+static void *cputime_new(void)
+{
+ t_cputime *x = (t_cputime *)pd_new(cputime_class);
+ outlet_new(&x->x_obj, gensym("float"));
+
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("bang"), gensym("bang2"));
+#ifdef NT
+ x->x_warned = 0;
+#endif
+ cputime_bang(x);
+ return (x);
+}
+
+static void cputime_setup(void)
+{
+ cputime_class = class_new(gensym("cputime"), (t_newmethod)cputime_new, 0,
+ sizeof(t_cputime), 0, 0);
+ class_addbang(cputime_class, cputime_bang);
+ class_addmethod(cputime_class, (t_method)cputime_bang2, gensym("bang2"), 0);
+}
+
+/* -------------------------- realtime ------------------------------ */
+
+static t_class *realtime_class;
+
+typedef struct _realtime
+{
+ t_object x_obj;
+ double x_setrealtime;
+} t_realtime;
+
+static void realtime_bang(t_realtime *x)
+{
+ x->x_setrealtime = sys_getrealtime();
+}
+
+static void realtime_bang2(t_realtime *x)
+{
+ outlet_float(x->x_obj.ob_outlet,
+ (sys_getrealtime() - x->x_setrealtime) * 1000.);
+}
+
+static void *realtime_new(void)
+{
+ t_realtime *x = (t_realtime *)pd_new(realtime_class);
+ outlet_new(&x->x_obj, gensym("float"));
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("bang"), gensym("bang2"));
+ realtime_bang(x);
+ return (x);
+}
+
+static void realtime_setup(void)
+{
+ realtime_class = class_new(gensym("realtime"), (t_newmethod)realtime_new, 0,
+ sizeof(t_realtime), 0, 0);
+ class_addbang(realtime_class, realtime_bang);
+ class_addmethod(realtime_class, (t_method)realtime_bang2, gensym("bang2"),
+ 0);
+}
+
+void x_misc_setup(void)
+{
+ random_setup();
+ loadbang_setup();
+ namecanvas_setup();
+ serial_setup();
+ cputime_setup();
+ realtime_setup();
+}
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