diff options
Diffstat (limited to 'cyclone/hammer/gate.c')
| -rw-r--r-- | cyclone/hammer/gate.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/cyclone/hammer/gate.c b/cyclone/hammer/gate.c new file mode 100644 index 0000000..2dbae57 --- /dev/null +++ b/cyclone/hammer/gate.c @@ -0,0 +1,147 @@ +/* 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. */ + +#include "m_pd.h" +#include "common/loud.h" + +#define GATE_MINOUTS 1 +#define GATE_MAXOUTS 100 +#define GATE_DEFOUTS 1 + +typedef struct _gate +{ + t_object x_ob; + int x_open; + t_pd *x_proxy; + int x_nouts; /* requested + 1 (as allocated) */ + t_outlet **x_outs; +} t_gate; + +typedef struct _gate_proxy +{ + t_object p_ob; + t_gate *p_master; +} t_gate_proxy; + +static t_class *gate_class; +static t_class *gate_proxy_class; + +static void gate_proxy_bang(t_gate_proxy *x) +{ + t_gate *master = x->p_master; + if (master->x_open) + outlet_bang(master->x_outs[master->x_open]); +} + +static void gate_proxy_float(t_gate_proxy *x, t_float f) +{ + t_gate *master = x->p_master; + if (master->x_open) + outlet_float(master->x_outs[master->x_open], f); +} + +static void gate_proxy_symbol(t_gate_proxy *x, t_symbol *s) +{ + t_gate *master = x->p_master; + if (master->x_open) + outlet_symbol(master->x_outs[master->x_open], s); +} + +static void gate_proxy_pointer(t_gate_proxy *x, t_gpointer *gp) +{ + t_gate *master = x->p_master; + if (master->x_open) + outlet_pointer(master->x_outs[master->x_open], gp); +} + +static void gate_proxy_list(t_gate_proxy *x, + t_symbol *s, int ac, t_atom *av) +{ + t_gate *master = x->p_master; + if (master->x_open) + outlet_list(master->x_outs[master->x_open], s, ac, av); +} + +static void gate_proxy_anything(t_gate_proxy *x, + t_symbol *s, int ac, t_atom *av) +{ + t_gate *master = x->p_master; + if (master->x_open) + outlet_anything(master->x_outs[master->x_open], s, ac, av); +} + +static void gate_float(t_gate *x, t_float f) +{ + int i = (int)f; + if (i < 0) i = 1; + if (i >= x->x_nouts) i = x->x_nouts - 1; + x->x_open = i; +} + +static void gate_bang(t_gate *x) +{ + outlet_float(x->x_outs[1], x->x_open); +} + +static void gate_free(t_gate *x) +{ + if (x->x_proxy) pd_free(x->x_proxy); + if (x->x_outs) + freebytes(x->x_outs, x->x_nouts * sizeof(*x->x_outs)); +} + +static void *gate_new(t_floatarg f1, t_floatarg f2) +{ + t_gate *x; + int i, nouts = (int)f1; + t_outlet **outs; + t_pd *proxy; + if (nouts < GATE_MINOUTS) + nouts = GATE_DEFOUTS; + if (nouts > GATE_MAXOUTS) + loud_incompatible_max(gate_class, GATE_MAXOUTS, "outlets"); + nouts++; /* for convenience (the cost is one pointer) */ + if (!(outs = (t_outlet **)getbytes(nouts * sizeof(*outs)))) + return (0); + if (!(proxy = pd_new(gate_proxy_class))) + { + freebytes(outs, nouts * sizeof(*outs)); + return (0); + } + x = (t_gate *)pd_new(gate_class); + x->x_nouts = nouts; + x->x_outs = outs; + x->x_proxy = proxy; + ((t_gate_proxy *)proxy)->p_master = x; + /* from max sdk manual: ``The dst parameter can be changed (or set to 0) + dynamically with the inlet_to function... The gate object uses this + technique to assign its inlet to one of several outlets, or no outlet + at all.'' We have to use a proxy, because Pd's outlet is not a t_pd + (besides, Pd does not handle inlets with null destination). */ + inlet_new((t_object *)x, proxy, 0, 0); + for (i = 1; i < nouts; i++) + x->x_outs[i] = outlet_new((t_object *)x, &s_anything); + gate_float(x, (f2 > 0 ? f2 : 0)); /* CHECKED */ + return (x); +} + +void gate_setup(void) +{ + gate_class = class_new(gensym("gate"), + (t_newmethod)gate_new, + (t_method)gate_free, + sizeof(t_gate), 0, + A_DEFFLOAT, A_DEFFLOAT, 0); + class_addfloat(gate_class, gate_float); + class_addbang(gate_class, gate_bang); + gate_proxy_class = class_new(gensym("_gate_proxy"), 0, 0, + sizeof(t_gate_proxy), + CLASS_PD | CLASS_NOINLET, 0); + class_addfloat(gate_proxy_class, gate_proxy_float); + class_addbang(gate_proxy_class, gate_proxy_bang); + class_addsymbol(gate_proxy_class, gate_proxy_symbol); + class_addpointer(gate_proxy_class, gate_proxy_pointer); + class_addlist(gate_proxy_class, gate_proxy_list); + class_addanything(gate_proxy_class, gate_proxy_anything); +} |