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foxbox/apps/plugins/pdbox/PDa/src/m_class.c
Peter D'Hoye 526b5580da Cut the files in half and it might work better (note to self: check your tree is really clean before patching) 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21070 a1c6a512-1295-4272-9138-f99709370657
2009-05-24 21:28:16 +00:00

825 lines
22 KiB
C
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/* 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. */
#define PD_CLASS_DEF
#include "m_pd.h"
#include "m_imp.h"
#include "s_stuff.h"
#include <stdlib.h>
#ifdef UNIX
#include <unistd.h>
#endif
#ifdef MSW
#include <io.h>
#endif
#include <stdarg.h>
#include <string.h>
static t_symbol *class_loadsym; /* name under which an extern is invoked */
static void pd_defaultfloat(t_pd *x, t_float f);
static void pd_defaultlist(t_pd *x, t_symbol *s, int argc, t_atom *argv);
t_pd pd_objectmaker; /* factory for creating "object" boxes */
t_pd pd_canvasmaker; /* factory for creating canvases */
static t_symbol *class_extern_dir = &s_;
static void pd_defaultanything(t_pd *x, t_symbol *s, int argc, t_atom *argv)
{
pd_error(x, "%s: no method for '%s'", (*x)->c_name->s_name, s->s_name);
}
static void pd_defaultbang(t_pd *x)
{
if (*(*x)->c_listmethod != pd_defaultlist)
(*(*x)->c_listmethod)(x, 0, 0, 0);
else (*(*x)->c_anymethod)(x, &s_bang, 0, 0);
}
static void pd_defaultpointer(t_pd *x, t_gpointer *gp)
{
if (*(*x)->c_listmethod != pd_defaultlist)
{
t_atom at;
SETPOINTER(&at, gp);
(*(*x)->c_listmethod)(x, 0, 1, &at);
}
else
{
t_atom at;
SETPOINTER(&at, gp);
(*(*x)->c_anymethod)(x, &s_pointer, 1, &at);
}
}
static void pd_defaultfloat(t_pd *x, t_float f)
{
if (*(*x)->c_listmethod != pd_defaultlist)
{
t_atom at;
SETFLOAT(&at, f);
(*(*x)->c_listmethod)(x, 0, 1, &at);
}
else
{
t_atom at;
SETFLOAT(&at, f);
(*(*x)->c_anymethod)(x, &s_float, 1, &at);
}
}
static void pd_defaultsymbol(t_pd *x, t_symbol *s)
{
if (*(*x)->c_listmethod != pd_defaultlist)
{
t_atom at;
SETSYMBOL(&at, s);
(*(*x)->c_listmethod)(x, 0, 1, &at);
}
else
{
t_atom at;
SETSYMBOL(&at, s);
(*(*x)->c_anymethod)(x, &s_symbol, 1, &at);
}
}
void obj_list(t_object *x, t_symbol *s, int argc, t_atom *argv);
static void class_nosavefn(t_gobj *z, t_binbuf *b);
/* handle "list" messages to Pds without explicit list methods defined. */
static void pd_defaultlist(t_pd *x, t_symbol *s, int argc, t_atom *argv)
{
/* a list with one element which is a number can be handled by a
"float" method if any is defined; same for "symbol", "pointer". */
if (argc == 1)
{
if (argv->a_type == A_FLOAT &&
*(*x)->c_floatmethod != pd_defaultfloat)
{
(*(*x)->c_floatmethod)(x, argv->a_w.w_float);
return;
}
else if (argv->a_type == A_SYMBOL &&
*(*x)->c_symbolmethod != pd_defaultsymbol)
{
(*(*x)->c_symbolmethod)(x, argv->a_w.w_symbol);
return;
}
else if (argv->a_type == A_POINTER &&
*(*x)->c_pointermethod != pd_defaultpointer)
{
(*(*x)->c_pointermethod)(x, argv->a_w.w_gpointer);
return;
}
}
/* Next try for an "anything" method */
if ((*x)->c_anymethod != pd_defaultanything)
(*(*x)->c_anymethod)(x, &s_list, argc, argv);
/* if the object is patchable (i.e., can have proper inlets)
send it on to obj_list which will unpack the list into the inlets */
else if ((*x)->c_patchable)
obj_list((t_object *)x, s, argc, argv);
/* otherwise gove up and complain. */
else pd_defaultanything(x, &s_list, argc, argv);
}
/* for now we assume that all "gobjs" are text unless explicitly
overridden later by calling class_setbehavior(). I'm not sure
how to deal with Pds that aren't gobjs; shouldn't there be a
way to check that at run time? Perhaps the presence of a "newmethod"
should be our cue, or perhaps the "tiny" flag. */
/* another matter. This routine does two unrelated things: it creates
a Pd class, but also adds a "new" method to create an instance of it.
These are combined for historical reasons and for brevity in writing
objects. To avoid adding a "new" method send a null function pointer.
To add additional ones, use class_addcreator below. Some "classes", like
"select", are actually two classes of the same name, one for the single-
argument form, one for the multiple one; see select_setup() to find out
how this is handled. */
extern t_widgetbehavior text_widgetbehavior;
extern void text_save(t_gobj *z, t_binbuf *b);
t_class *class_new(t_symbol *s, t_newmethod newmethod, t_method freemethod,
size_t size, int flags, t_atomtype type1, ...)
{
va_list ap;
t_atomtype vec[MAXPDARG+1], *vp = vec;
int count = 0;
t_class *c;
int typeflag = flags & CLASS_TYPEMASK;
if (!typeflag) typeflag = CLASS_PATCHABLE;
*vp = type1;
va_start(ap, type1);
while (*vp)
{
if (count == MAXPDARG)
{
error("class %s: sorry: only %d creation args allowed",
s->s_name, MAXPDARG);
break;
}
vp++;
count++;
*vp = va_arg(ap, t_atomtype);
}
va_end(ap);
if (pd_objectmaker && newmethod)
{
/* add a "new" method by the name specified by the object */
class_addmethod(pd_objectmaker, (t_method)newmethod, s,
vec[0], vec[1], vec[2], vec[3], vec[4], vec[5]);
if (class_loadsym)
{
/* if we're loading an extern it might have been invoked by a
longer file name; in this case, make this an admissible name
too. */
char *loadstring = class_loadsym->s_name,
l1 = strlen(s->s_name), l2 = strlen(loadstring);
if (l2 > l1 && !strcmp(s->s_name, loadstring + (l2 - l1)))
class_addmethod(pd_objectmaker, (t_method)newmethod,
class_loadsym,
vec[0], vec[1], vec[2], vec[3], vec[4], vec[5]);
}
}
c = (t_class *)t_getbytes(sizeof(*c));
c->c_name = c->c_helpname = s;
c->c_size = size;
c->c_methods = t_getbytes(0);
c->c_nmethod = 0;
c->c_freemethod = (t_method)freemethod;
c->c_bangmethod = pd_defaultbang;
c->c_pointermethod = pd_defaultpointer;
c->c_floatmethod = pd_defaultfloat;
c->c_symbolmethod = pd_defaultsymbol;
c->c_listmethod = pd_defaultlist;
c->c_anymethod = pd_defaultanything;
c->c_wb = (typeflag == CLASS_PATCHABLE ? &text_widgetbehavior : 0);
c->c_pwb = 0;
c->c_firstin = ((flags & CLASS_NOINLET) == 0);
c->c_patchable = (typeflag == CLASS_PATCHABLE);
c->c_gobj = (typeflag >= CLASS_GOBJ);
c->c_drawcommand = 0;
c->c_floatsignalin = 0;
c->c_externdir = class_extern_dir;
c->c_savefn = (typeflag == CLASS_PATCHABLE ? text_save : class_nosavefn);
#if 0
post("class: %s", c->c_name->s_name);
#endif
return (c);
}
/* add a creation method, which is a function that returns a Pd object
suitable for putting in an object box. We presume you've got a class it
can belong to, but this won't be used until the newmethod is actually
called back (and the new method explicitly takes care of this.) */
void class_addcreator(t_newmethod newmethod, t_symbol *s,
t_atomtype type1, ...)
{
va_list ap;
t_atomtype vec[MAXPDARG+1], *vp = vec;
int count = 0;
*vp = type1;
va_start(ap, type1);
while (*vp)
{
if (count == MAXPDARG)
{
error("class %s: sorry: only %d creation args allowed",
s->s_name, MAXPDARG);
break;
}
vp++;
count++;
*vp = va_arg(ap, t_atomtype);
}
va_end(ap);
class_addmethod(pd_objectmaker, (t_method)newmethod, s,
vec[0], vec[1], vec[2], vec[3], vec[4], vec[5]);
}
void class_addmethod(t_class *c, t_method fn, t_symbol *sel,
t_atomtype arg1, ...)
{
va_list ap;
t_methodentry *m;
t_atomtype argtype = arg1;
int nargs;
va_start(ap, arg1);
/* "signal" method specifies that we take audio signals but
that we don't want automatic float to signal conversion. This
is obsolete; you should now use the CLASS_MAINSIGNALIN macro. */
if (sel == &s_signal)
{
if (c->c_floatsignalin)
post("warning: signal method overrides class_mainsignalin");
c->c_floatsignalin = -1;
}
/* check for special cases. "Pointer" is missing here so that
pd_objectmaker's pointer method can be typechecked differently. */
if (sel == &s_bang)
{
if (argtype) goto phooey;
class_addbang(c, fn);
}
else if (sel == &s_float)
{
if (argtype != A_FLOAT || va_arg(ap, t_atomtype)) goto phooey;
class_doaddfloat(c, fn);
}
else if (sel == &s_symbol)
{
if (argtype != A_SYMBOL || va_arg(ap, t_atomtype)) goto phooey;
class_addsymbol(c, fn);
}
else if (sel == &s_list)
{
if (argtype != A_GIMME) goto phooey;
class_addlist(c, fn);
}
else if (sel == &s_anything)
{
if (argtype != A_GIMME) goto phooey;
class_addanything(c, fn);
}
else
{
c->c_methods = t_resizebytes(c->c_methods,
c->c_nmethod * sizeof(*c->c_methods),
(c->c_nmethod + 1) * sizeof(*c->c_methods));
m = c->c_methods + c->c_nmethod;
c->c_nmethod++;
m->me_name = sel;
m->me_fun = (t_gotfn)fn;
nargs = 0;
while (argtype != A_NULL && nargs < MAXPDARG)
{
m->me_arg[nargs++] = argtype;
argtype = va_arg(ap, t_atomtype);
}
if (argtype != A_NULL)
error("%s_%s: only 5 arguments are typecheckable; use A_GIMME",
c->c_name->s_name, sel->s_name);
va_end(ap);
m->me_arg[nargs] = A_NULL;
}
return;
phooey:
bug("class_addmethod: %s_%s: bad argument types\n",
c->c_name->s_name, sel->s_name);
}
/* Instead of these, see the "class_addfloat", etc., macros in m_pd.h */
void class_addbang(t_class *c, t_method fn)
{
c->c_bangmethod = (t_bangmethod)fn;
}
void class_addpointer(t_class *c, t_method fn)
{
c->c_pointermethod = (t_pointermethod)fn;
}
void class_doaddfloat(t_class *c, t_method fn)
{
c->c_floatmethod = (t_floatmethod)fn;
}
void class_addsymbol(t_class *c, t_method fn)
{
c->c_symbolmethod = (t_symbolmethod)fn;
}
void class_addlist(t_class *c, t_method fn)
{
c->c_listmethod = (t_listmethod)fn;
}
void class_addanything(t_class *c, t_method fn)
{
c->c_anymethod = (t_anymethod)fn;
}
void class_setwidget(t_class *c, t_widgetbehavior *w)
{
c->c_wb = w;
}
void class_setparentwidget(t_class *c, t_parentwidgetbehavior *pw)
{
c->c_pwb = pw;
}
char *class_getname(t_class *c)
{
return (c->c_name->s_name);
}
char *class_gethelpname(t_class *c)
{
return (c->c_helpname->s_name);
}
void class_sethelpsymbol(t_class *c, t_symbol *s)
{
c->c_helpname = s;
}
t_parentwidgetbehavior *pd_getparentwidget(t_pd *x)
{
return ((*x)->c_pwb);
}
void class_setdrawcommand(t_class *c)
{
c->c_drawcommand = 1;
}
int class_isdrawcommand(t_class *c)
{
return (c->c_drawcommand);
}
static void pd_floatforsignal(t_pd *x, t_float f)
{
int offset = (*x)->c_floatsignalin;
if (offset > 0)
*(t_sample *)(((char *)x) + offset) = ftofix(f);
else
pd_error(x, "%s: float unexpected for signal input",
(*x)->c_name->s_name);
}
void class_domainsignalin(t_class *c, int onset)
{
if (onset <= 0) onset = -1;
else
{
if (c->c_floatmethod != pd_defaultfloat)
post("warning: %s: float method overwritten", c->c_name->s_name);
c->c_floatmethod = (t_floatmethod)pd_floatforsignal;
}
c->c_floatsignalin = onset;
}
void class_set_extern_dir(t_symbol *s)
{
class_extern_dir = s;
}
char *class_gethelpdir(t_class *c)
{
return (c->c_externdir->s_name);
}
static void class_nosavefn(t_gobj *z, t_binbuf *b)
{
bug("save function called but not defined");
}
void class_setsavefn(t_class *c, t_savefn f)
{
c->c_savefn = f;
}
t_savefn class_getsavefn(t_class *c)
{
return (c->c_savefn);
}
void class_setpropertiesfn(t_class *c, t_propertiesfn f)
{
c->c_propertiesfn = f;
}
t_propertiesfn class_getpropertiesfn(t_class *c)
{
return (c->c_propertiesfn);
}
/* ---------------- the symbol table ------------------------ */
#define HASHSIZE 1024
static t_symbol *symhash[HASHSIZE];
t_symbol *dogensym(char *s, t_symbol *oldsym)
{
t_symbol **sym1, *sym2;
unsigned int hash1 = 0, hash2 = 0;
int length = 0;
char *s2 = s;
while (*s2)
{
hash1 += *s2;
hash2 += hash1;
length++;
s2++;
}
sym1 = symhash + (hash2 & (HASHSIZE-1));
while (sym2 = *sym1)
{
if (!strcmp(sym2->s_name, s)) return(sym2);
sym1 = &sym2->s_next;
}
if (oldsym) sym2 = oldsym;
else
{
sym2 = (t_symbol *)t_getbytes(sizeof(*sym2));
sym2->s_name = t_getbytes(length+1);
sym2->s_next = 0;
sym2->s_thing = 0;
strcpy(sym2->s_name, s);
}
*sym1 = sym2;
return (sym2);
}
t_symbol *gensym(char *s)
{
return(dogensym(s, 0));
}
static t_symbol *addfileextent(t_symbol *s)
{
char namebuf[MAXPDSTRING], *str = s->s_name;
int ln = strlen(str);
if (!strcmp(str + ln - 3, ".pd")) return (s);
strcpy(namebuf, str);
strcpy(namebuf+ln, ".pd");
return (gensym(namebuf));
}
static int tryingalready;
void canvas_popabstraction(t_canvas *x);
extern t_pd *newest;
t_symbol* pathsearch(t_symbol *s,char* ext);
int pd_setloadingabstraction(t_symbol *sym);
/* this routine is called when a new "object" is requested whose class Pd
doesn't know. Pd tries to load it as an extern, then as an abstraction. */
void new_anything(void *dummy, t_symbol *s, int argc, t_atom *argv)
{
t_pd *current;
t_symbol *dir = canvas_getcurrentdir();
int fd;
char dirbuf[MAXPDSTRING], *nameptr;
if (tryingalready) return;
newest = 0;
class_loadsym = s;
if (sys_load_lib(dir->s_name, s->s_name))
{
tryingalready = 1;
typedmess(dummy, s, argc, argv);
tryingalready = 0;
return;
}
class_loadsym = 0;
current = s__X.s_thing;
if ((fd = open_via_path(dir->s_name, s->s_name, ".pd",
dirbuf, &nameptr, MAXPDSTRING, 0)) >= 0 ||
(fd = open_via_path(dir->s_name, s->s_name, ".pat",
dirbuf, &nameptr, MAXPDSTRING, 0)) >= 0)
{
close (fd);
if (!pd_setloadingabstraction(s))
{
canvas_setargs(argc, argv); /* bug fix by Krzysztof Czaja */
binbuf_evalfile(gensym(nameptr), gensym(dirbuf));
if (s__X.s_thing != current)
canvas_popabstraction((t_canvas *)(s__X.s_thing));
canvas_setargs(0, 0);
}
else error("%s: can't load abstraction within itself\n", s->s_name);
}
else newest = 0;
}
t_symbol s_pointer = {"pointer", 0, 0};
t_symbol s_float = {"float", 0, 0};
t_symbol s_symbol = {"symbol", 0, 0};
t_symbol s_bang = {"bang", 0, 0};
t_symbol s_list = {"list", 0, 0};
t_symbol s_anything = {"anything", 0, 0};
t_symbol s_signal = {"signal", 0, 0};
t_symbol s__N = {"#N", 0, 0};
t_symbol s__X = {"#X", 0, 0};
t_symbol s_x = {"x", 0, 0};
t_symbol s_y = {"y", 0, 0};
t_symbol s_ = {"", 0, 0};
static t_symbol *symlist[] = { &s_pointer, &s_float, &s_symbol, &s_bang,
&s_list, &s_anything, &s_signal, &s__N, &s__X, &s_x, &s_y, &s_};
void mess_init(void)
{
t_symbol **sp;
int i;
if (pd_objectmaker) return;
for (i = sizeof(symlist)/sizeof(*symlist), sp = symlist; i--; sp++)
(void) dogensym((*sp)->s_name, *sp);
pd_objectmaker = class_new(gensym("objectmaker"), 0, 0, sizeof(t_pd),
CLASS_DEFAULT, A_NULL);
pd_canvasmaker = class_new(gensym("classmaker"), 0, 0, sizeof(t_pd),
CLASS_DEFAULT, A_NULL);
pd_bind(&pd_canvasmaker, &s__N);
class_addanything(pd_objectmaker, (t_method)new_anything);
}
t_pd *newest;
/* This is externally available, but note that it might later disappear; the
whole "newest" thing is a hack which needs to be redesigned. */
t_pd *pd_newest(void)
{
return (newest);
}
/* horribly, we need prototypes for each of the artificial function
calls in typedmess(), to keep the compiler quiet. */
typedef t_pd *(*t_newgimme)(t_symbol *s, int argc, t_atom *argv);
typedef void(*t_messgimme)(t_pd *x, t_symbol *s, int argc, t_atom *argv);
typedef t_pd *(*t_fun0)(
t_floatarg d1, t_floatarg d2, t_floatarg d3, t_floatarg d4, t_floatarg d5);
typedef t_pd *(*t_fun1)(t_int i1,
t_floatarg d1, t_floatarg d2, t_floatarg d3, t_floatarg d4, t_floatarg d5);
typedef t_pd *(*t_fun2)(t_int i1, t_int i2,
t_floatarg d1, t_floatarg d2, t_floatarg d3, t_floatarg d4, t_floatarg d5);
typedef t_pd *(*t_fun3)(t_int i1, t_int i2, t_int i3,
t_floatarg d1, t_floatarg d2, t_floatarg d3, t_floatarg d4, t_floatarg d5);
typedef t_pd *(*t_fun4)(t_int i1, t_int i2, t_int i3, t_int i4,
t_floatarg d1, t_floatarg d2, t_floatarg d3, t_floatarg d4, t_floatarg d5);
typedef t_pd *(*t_fun5)(t_int i1, t_int i2, t_int i3, t_int i4, t_int i5,
t_floatarg d1, t_floatarg d2, t_floatarg d3, t_floatarg d4, t_floatarg d5);
typedef t_pd *(*t_fun6)(t_int i1, t_int i2, t_int i3, t_int i4, t_int i5, t_int i6,
t_floatarg d1, t_floatarg d2, t_floatarg d3, t_floatarg d4, t_floatarg d5);
void pd_typedmess(t_pd *x, t_symbol *s, int argc, t_atom *argv)
{
t_method *f;
t_class *c = *x;
t_methodentry *m;
t_atomtype *wp, wanttype;
int i;
t_int ai[MAXPDARG+1], *ap = ai;
t_floatarg ad[MAXPDARG+1], *dp = ad;
int narg = 0;
t_pd *bonzo;
/* check for messages that are handled by fixed slots in the class
structure. We don't catch "pointer" though so that sending "pointer"
to pd_objectmaker doesn't require that we supply a pointer value. */
if (s == &s_float)
{
if (!argc) (*c->c_floatmethod)(x, 0.);
else if (argv->a_type == A_FLOAT)
(*c->c_floatmethod)(x, argv->a_w.w_float);
else goto badarg;
return;
}
if (s == &s_bang)
{
(*c->c_bangmethod)(x);
return;
}
if (s == &s_list)
{
(*c->c_listmethod)(x, s, argc, argv);
return;
}
if (s == &s_symbol)
{
if (argc && argv->a_type == A_SYMBOL)
(*c->c_symbolmethod)(x, argv->a_w.w_symbol);
else
(*c->c_symbolmethod)(x, &s_);
return;
}
for (i = c->c_nmethod, m = c->c_methods; i--; m++)
if (m->me_name == s)
{
wp = m->me_arg;
if (*wp == A_GIMME)
{
if (x == &pd_objectmaker)
newest = (*((t_newgimme)(m->me_fun)))(s, argc, argv);
else (*((t_messgimme)(m->me_fun)))(x, s, argc, argv);
return;
}
if (argc > MAXPDARG) argc = MAXPDARG;
if (x != &pd_objectmaker) *(ap++) = (t_int)x, narg++;
while (wanttype = *wp++)
{
switch (wanttype)
{
case A_POINTER:
if (!argc) goto badarg;
else
{
if (argv->a_type == A_POINTER)
*ap = (t_int)(argv->a_w.w_gpointer);
else goto badarg;
argc--;
argv++;
}
narg++;
ap++;
break;
case A_FLOAT:
if (!argc) goto badarg;
case A_DEFFLOAT:
if (!argc) *dp = 0;
else
{
if (argv->a_type == A_FLOAT)
*dp = argv->a_w.w_float;
else goto badarg;
argc--;
argv++;
}
dp++;
break;
case A_SYMBOL:
if (!argc) goto badarg;
case A_DEFSYM:
if (!argc) *ap = (t_int)(&s_);
else
{
if (argv->a_type == A_SYMBOL)
*ap = (t_int)(argv->a_w.w_symbol);
/* if it's an unfilled "dollar" argument it appears
as zero here; cheat and bash it to the null
symbol. Unfortunately, this lets real zeros
pass as symbols too, which seems wrong... */
else if (x == &pd_objectmaker && argv->a_type == A_FLOAT
&& argv->a_w.w_float == 0)
*ap = (t_int)(&s_);
else goto badarg;
argc--;
argv++;
}
narg++;
ap++;
}
}
switch (narg)
{
case 0 : bonzo = (*(t_fun0)(m->me_fun))
(ad[0], ad[1], ad[2], ad[3], ad[4]); break;
case 1 : bonzo = (*(t_fun1)(m->me_fun))
(ai[0], ad[0], ad[1], ad[2], ad[3], ad[4]); break;
case 2 : bonzo = (*(t_fun2)(m->me_fun))
(ai[0], ai[1], ad[0], ad[1], ad[2], ad[3], ad[4]); break;
case 3 : bonzo = (*(t_fun3)(m->me_fun))
(ai[0], ai[1], ai[2], ad[0], ad[1], ad[2], ad[3], ad[4]); break;
case 4 : bonzo = (*(t_fun4)(m->me_fun))
(ai[0], ai[1], ai[2], ai[3],
ad[0], ad[1], ad[2], ad[3], ad[4]); break;
case 5 : bonzo = (*(t_fun5)(m->me_fun))
(ai[0], ai[1], ai[2], ai[3], ai[4],
ad[0], ad[1], ad[2], ad[3], ad[4]); break;
case 6 : bonzo = (*(t_fun6)(m->me_fun))
(ai[0], ai[1], ai[2], ai[3], ai[4], ai[5],
ad[0], ad[1], ad[2], ad[3], ad[4]); break;
default: bonzo = 0;
}
if (x == &pd_objectmaker)
newest = bonzo;
return;
}
(*c->c_anymethod)(x, s, argc, argv);
return;
badarg:
pd_error(x, "Bad arguments for message '%s' to object '%s'",
s->s_name, c->c_name->s_name);
}
void pd_vmess(t_pd *x, t_symbol *sel, char *fmt, ...)
{
va_list ap;
t_atom arg[MAXPDARG], *at =arg;
int nargs = 0;
char *fp = fmt;
va_start(ap, fmt);
while (1)
{
if (nargs > MAXPDARG)
{
pd_error(x, "pd_vmess: only %d allowed", MAXPDARG);
break;
}
switch(*fp++)
{
case 'f': SETFLOAT(at, va_arg(ap, double)); break;
case 's': SETSYMBOL(at, va_arg(ap, t_symbol *)); break;
case 'i': SETFLOAT(at, va_arg(ap, t_int)); break;
case 'p': SETPOINTER(at, va_arg(ap, t_gpointer *)); break;
default: goto done;
}
at++;
nargs++;
}
done:
va_end(ap);
typedmess(x, sel, nargs, arg);
}
void pd_forwardmess(t_pd *x, int argc, t_atom *argv)
{
if (argc)
{
t_atomtype t = argv->a_type;
if (t == A_SYMBOL) pd_typedmess(x, argv->a_w.w_symbol, argc-1, argv+1);
else if (t == A_POINTER)
{
if (argc == 1) pd_pointer(x, argv->a_w.w_gpointer);
else pd_list(x, &s_list, argc, argv);
}
else if (t == A_FLOAT)
{
if (argc == 1) pd_float(x, argv->a_w.w_float);
else pd_list(x, &s_list, argc, argv);
}
else bug("pd_forwardmess");
}
}
void nullfn(void) {}
t_gotfn getfn(t_pd *x, t_symbol *s)
{
t_class *c = *x;
t_methodentry *m;
int i;
for (i = c->c_nmethod, m = c->c_methods; i--; m++)
if (m->me_name == s) return(m->me_fun);
pd_error(x, "%s: no method for message '%s'", c->c_name->s_name, s->s_name);
return((t_gotfn)nullfn);
}
t_gotfn zgetfn(t_pd *x, t_symbol *s)
{
t_class *c = *x;
t_methodentry *m;
int i;
for (i = c->c_nmethod, m = c->c_methods; i--; m++)
if (m->me_name == s) return(m->me_fun);
return(0);
}
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