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/* 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: 'click' method */
#include <string.h>
#include "m_pd.h"
#include "sickle/sic.h"
#include "sickle/arsic.h"
#define PEEK_MAXCHANNELS 4 /* LATER implement arsic resizing feature */
typedef struct _peek
{
t_arsic x_arsic;
int x_maxchannels;
int x_effchannel; /* effective channel (clipped reqchannel) */
int x_reqchannel; /* requested channel */
int x_clipmode;
int x_pokemode;
t_float x_value;
t_clock *x_clock;
double x_clocklasttick;
int x_clockset;
} t_peek;
static t_class *peek_class;
static void peek_tick(t_peek *x)
{
arsic_redraw((t_arsic *)x); /* LATER redraw only dirty channel(s!) */
x->x_clockset = 0;
x->x_clocklasttick = clock_getsystime();
}
static void peek_set(t_peek *x, t_symbol *s)
{
arsic_setarray((t_arsic *)x, s, 1);
}
#define peek_doclip(f) (f < -1. ? -1. : (f > 1. ? 1. : f))
/* CHECKED refman error: ``if the number received in the left inlet
specifies a sample index that does not exist in the buffer~ object's
currently allocated memory, nothing happens.'' This is plainly wrong,
at least for max/msp 4.0.7 bundle: the index is clipped (just like
in tabread/tabwrite). As a kind of an experiment, lets make this
the refman's way... */
static void peek_float(t_peek *x, t_float f)
{
t_arsic *sic = (t_arsic *)x;
t_float *vp;
arsic_validate(sic, 0); /* LATER rethink (efficiency, and complaining) */
if (vp = sic->s_vectors[x->x_effchannel])
{
int ndx = (int)f;
if (vp && ndx >= 0 && ndx < sic->s_vecsize)
{
if (x->x_pokemode)
{
double timesince;
t_float f = x->x_value;
vp[ndx] = (x->x_clipmode ? peek_doclip(f) : f);
x->x_pokemode = 0;
timesince = clock_gettimesince(x->x_clocklasttick);
if (timesince > 1000) peek_tick(x);
else if (!x->x_clockset)
{
clock_delay(x->x_clock, 1000 - timesince);
x->x_clockset = 1;
}
}
/* CHECKED: output not clipped */
else outlet_float(((t_object *)x)->ob_outlet, vp[ndx]);
}
}
}
static void peek_ft1(t_peek *x, t_floatarg f)
{
x->x_value = f;
x->x_pokemode = 1;
/* CHECKED: poke-mode is reset only after receiving left inlet input
-- it is kept across 'ft2', 'clip', and 'set' inputs. */
}
static void peek_ft2(t_peek *x, t_floatarg f)
{
if ((x->x_reqchannel = (f > 1 ? (int)f - 1 : 0)) > x->x_maxchannels)
x->x_effchannel = x->x_maxchannels - 1;
else
x->x_effchannel = x->x_reqchannel;
}
static void peek_clip(t_peek *x, t_floatarg f)
{
x->x_clipmode = ((int)f != 0);
}
static void peek_free(t_peek *x)
{
if (x->x_clock) clock_free(x->x_clock);
arsic_free((t_arsic *)x);
}
static void *peek_new(t_symbol *s, t_floatarg f1, t_floatarg f2)
{
int ch = (f1 > 0 ? (int)f1 : 0);
t_peek *x = (t_peek *)arsic_new(peek_class, s,
(ch ? PEEK_MAXCHANNELS : 0), 0, 0);
if (x)
{
if (ch > PEEK_MAXCHANNELS)
ch = PEEK_MAXCHANNELS;
x->x_maxchannels = (ch ? PEEK_MAXCHANNELS : 1);
x->x_effchannel = x->x_reqchannel = (ch ? ch - 1 : 0);
/* CHECKED (refman error) clipping is disabled by default */
x->x_clipmode = ((int)f2 != 0);
x->x_pokemode = 0;
inlet_new((t_object *)x, (t_pd *)x, &s_float, gensym("ft1"));
inlet_new((t_object *)x, (t_pd *)x, &s_float, gensym("ft2"));
outlet_new((t_object *)x, &s_float);
x->x_clock = clock_new(x, (t_method)peek_tick);
x->x_clocklasttick = clock_getsystime();
x->x_clockset = 0;
}
return (x);
}
void peek_tilde_setup(void)
{
peek_class = class_new(gensym("peek~"),
(t_newmethod)peek_new,
(t_method)peek_free,
sizeof(t_peek), 0,
A_DEFSYM, A_DEFFLOAT, A_DEFFLOAT, 0);
class_addfloat(peek_class, peek_float);
class_addmethod(peek_class, (t_method)peek_set,
gensym("set"), A_SYMBOL, 0);
class_addmethod(peek_class, (t_method)peek_ft1,
gensym("ft1"), A_FLOAT, 0);
class_addmethod(peek_class, (t_method)peek_ft2,
gensym("ft2"), A_FLOAT, 0);
class_addmethod(peek_class, (t_method)peek_clip,
gensym("clip"), A_FLOAT, 0);
}
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