diff options
Diffstat (limited to 'cyclone/hammer/speedlim.c')
| -rw-r--r-- | cyclone/hammer/speedlim.c | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/cyclone/hammer/speedlim.c b/cyclone/hammer/speedlim.c new file mode 100644 index 0000000..3cad0f7 --- /dev/null +++ b/cyclone/hammer/speedlim.c @@ -0,0 +1,173 @@ +/* Copyright (c) 2002-2003 krzYszcz and others. + * For information on usage and redistribution, and for a DISCLAIMER OF ALL + * WARRANTIES, see the file, "LICENSE.txt," in this distribution. */ + +/* LATER 'clock' method */ + +#include <string.h> +#include "m_pd.h" +#include "common/grow.h" + +#define SPEEDLIM_INISIZE 32 /* LATER rethink */ +#define SPEEDLIM_MAXSIZE 256 /* not used */ + +typedef struct _speedlim +{ + t_object x_ob; + int x_open; + t_float x_delta; + t_symbol *x_selector; + t_float x_float; + t_symbol *x_symbol; + t_gpointer *x_pointer; + int x_size; /* as allocated */ + int x_natoms; /* as used */ + t_atom *x_message; + t_atom x_messini[SPEEDLIM_INISIZE]; + int x_entered; + t_clock *x_clock; +} t_speedlim; + +static t_class *speedlim_class; + +static void speedlim_dooutput(t_speedlim *x, t_symbol *s, int ac, t_atom *av) +{ + x->x_open = 0; /* so there will be no reentrant calls of dooutput */ + x->x_entered = 1; /* this prevents a message from being overridden */ + clock_unset(x->x_clock); + if (s == &s_bang) + outlet_bang(((t_object *)x)->ob_outlet); + else if (s == &s_float) + outlet_float(((t_object *)x)->ob_outlet, x->x_float); + else if (s == &s_symbol && x->x_symbol) + { + /* if x_symbol is null, then symbol &s_ is passed + by outlet_anything() -> typedmess() */ + outlet_symbol(((t_object *)x)->ob_outlet, x->x_symbol); + x->x_symbol = 0; + } + else if (s == &s_pointer && x->x_pointer) + { + /* LATER */ + x->x_pointer = 0; + } + else if (s == &s_list) + outlet_list(((t_object *)x)->ob_outlet, &s_list, ac, av); + else if (s) + outlet_anything(((t_object *)x)->ob_outlet, s, ac, av); + x->x_selector = 0; + x->x_natoms = 0; + if (x->x_delta > 0) + clock_delay(x->x_clock, x->x_delta); + else + x->x_open = 1; + x->x_entered = 0; +} + +static void speedlim_tick(t_speedlim *x) +{ + if (x->x_selector) + speedlim_dooutput(x, x->x_selector, x->x_natoms, x->x_message); + else + x->x_open = 1; +} + +static void speedlim_anything(t_speedlim *x, t_symbol *s, int ac, t_atom *av) +{ + if (x->x_open) + speedlim_dooutput(x, s, ac, av); + else if (s && s != &s_ && !x->x_entered) + { + if (ac > x->x_size) + /* MAXSIZE not used, not even a warning... + LATER consider clipping */ + x->x_message = grow_nodata(&ac, &x->x_size, x->x_message, + SPEEDLIM_INISIZE, x->x_messini, + sizeof(*x->x_message)); + x->x_selector = s; + x->x_natoms = ac; + if (ac) + memcpy(x->x_message, av, ac * sizeof(*x->x_message)); + } +} + +static void speedlim_bang(t_speedlim *x) +{ + x->x_selector = &s_bang; + speedlim_anything(x, x->x_selector, 0, 0); +} + +static void speedlim_float(t_speedlim *x, t_float f) +{ + x->x_selector = &s_float; + x->x_float = f; + speedlim_anything(x, x->x_selector, 0, 0); +} + +static void speedlim_symbol(t_speedlim *x, t_symbol *s) +{ + x->x_selector = &s_symbol; + x->x_symbol = s; + speedlim_anything(x, x->x_selector, 0, 0); +} + +/* LATER gpointer */ + +static void speedlim_list(t_speedlim *x, t_symbol *s, int ac, t_atom *av) +{ + x->x_selector = &s_list; + speedlim_anything(x, x->x_selector, ac, av); +} + +static void speedlim_ft1(t_speedlim *x, t_floatarg f) +{ + if (f < 0) + f = 0; /* redundant (and CHECKED) */ + x->x_delta = f; + /* CHECKED: no rearming -- + if clock is set, then new delta value is not used until next tick */ +} + +static void speedlim_free(t_speedlim *x) +{ + if (x->x_message != x->x_messini) + freebytes(x->x_message, x->x_size * sizeof(*x->x_message)); + if (x->x_clock) + clock_free(x->x_clock); +} + +static void *speedlim_new(t_floatarg f) +{ + t_speedlim *x = (t_speedlim *)pd_new(speedlim_class); + x->x_open = 1; /* CHECKED */ + x->x_delta = 0; + x->x_selector = 0; + x->x_float = 0; + x->x_symbol = 0; + x->x_pointer = 0; + x->x_size = SPEEDLIM_INISIZE; + x->x_natoms = 0; + x->x_message = x->x_messini; + x->x_entered = 0; + inlet_new((t_object *)x, (t_pd *)x, &s_float, gensym("ft1")); + outlet_new((t_object *)x, &s_anything); + x->x_clock = clock_new(x, (t_method)speedlim_tick); + speedlim_ft1(x, f); + return (x); +} + +void speedlim_setup(void) +{ + speedlim_class = class_new(gensym("speedlim"), + (t_newmethod)speedlim_new, + (t_method)speedlim_free, + sizeof(t_speedlim), 0, + A_DEFFLOAT, 0); + class_addbang(speedlim_class, speedlim_bang); + class_addfloat(speedlim_class, speedlim_float); + class_addsymbol(speedlim_class, speedlim_symbol); + class_addlist(speedlim_class, speedlim_list); + class_addanything(speedlim_class, speedlim_anything); + class_addmethod(speedlim_class, (t_method)speedlim_ft1, + gensym("ft1"), A_FLOAT, 0); +} |