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/* Copyright (c) 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. */
/* Put here compilation conditionals supporting older Pd versions. */
#include "m_pd.h"
#include "g_canvas.h"
#include "shared.h"
#include "unstable/forky.h"
#if FORKY_VERSION < 37
/* need this for t_class::c_wb field access */
#include "unstable/pd_imp.h"
#endif
//#define FORKY_DEBUG
t_pd *forky_newobject(t_symbol *s, int ac, t_atom *av)
{
#if FORKY_VERSION >= 37
typedmess(&pd_objectmaker, s, ac, av);
return (pd_newest());
#else
return (0);
#endif
}
void forky_setsavefn(t_class *c, t_forkysavefn fn)
{
#if FORKY_VERSION >= 37
class_setsavefn(c, fn);
#else
if (c->c_wb->w_savefn)
{
/* cloning is necessary, because class_setwidget has not been called */
t_widgetbehavior *wb = getbytes(sizeof(*wb)); /* never freed */
#ifdef FORKY_DEBUG
post("cloning widgetbehavior...");
#endif
*wb = *c->c_wb;
wb->w_savefn = fn;
class_setwidget(c, wb);
}
else c->c_wb->w_savefn = fn;
#endif
}
void forky_setpropertiesfn(t_class *c, t_forkypropertiesfn fn)
{
#if FORKY_VERSION >= 37
class_setpropertiesfn(c, fn);
#else
/* assuming wb has already been either cloned (in forky_setsavefn),
or defined from scratch -- it is unlikely to ever need props without
a specialized save (always be sure to set props after save, though). */
c->c_wb->w_propertiesfn = fn;
#endif
}
/* To be called in a 'dsp' method -- e.g. if there are no feeders, the caller
might use an optimized version of a 'perform' routine.
LATER think about replacing 'linetraverser' calls with something faster. */
int forky_hasfeeders(t_object *x, t_glist *glist, int inno, t_symbol *outsym)
{
t_linetraverser t;
linetraverser_start(&t, glist);
while (linetraverser_next(&t))
if (t.tr_ob2 == x && t.tr_inno == inno
#if FORKY_VERSION >= 36
&& (!outsym || outsym == outlet_getsymbol(t.tr_outlet))
#endif
)
return (1);
return (0);
}
/* Not really a forky, just found no better place to put it in.
Used in bitwise signal binops (sickle). Checked against msp2. */
t_int forky_getbitmask(int ac, t_atom *av)
{
t_int result = 0;
if (sizeof(shared_t_bitmask) >= sizeof(t_int))
{
int nbits = sizeof(t_int) * 8;
shared_t_bitmask bitmask = 1 << (nbits - 1);
if (ac > nbits)
ac = nbits;
while (ac--)
{
if (av->a_type == A_FLOAT &&
(int)av->a_w.w_float) /* CHECKED */
result |= bitmask;
/* CHECKED symbols are zero */
bitmask >>= 1;
av++;
}
/* CHECKED missing are zero */
#ifdef FORKY_DEBUG
post("mask set to %.8x", result);
#endif
}
else bug("sizeof(shared_t_bitmask)");
return (result);
}
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