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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. */
#include <string.h>
#include "m_pd.h"
#include "shared.h"
#include "sickle/sic.h"
#include "sickle/arsic.h"
#define RECORD_REDRAWPAUSE 1000. /* refractory period */
typedef struct _record
{
t_arsic x_arsic;
float x_startpoint; /* the inputs */
float x_endpoint;
int x_appendmode;
int x_loopmode;
int x_startindex;
int x_endindex; /* (one past last record position) */
int x_pauseindex;
int x_phase; /* writing head */
float x_sync;
float x_syncincr;
int x_isrunning; /* to know if sync should be 0.0 or 1.0 */
t_clock *x_clock;
double x_clocklasttick;
} t_record;
static t_class *record_class;
static void record_tick(t_record *x)
{
double timesince = clock_gettimesince(x->x_clocklasttick);
if (timesince >= RECORD_REDRAWPAUSE)
{
arsic_redraw((t_arsic *)x);
x->x_clocklasttick = clock_getlogicaltime();
}
else clock_delay(x->x_clock, RECORD_REDRAWPAUSE - timesince);
}
static void record_setsync(t_record *x)
{
/* CHECKED: clipped to array size -- using indices, not points */
float range = (float)(x->x_endindex - x->x_startindex);
int phase = x->x_phase;
if (phase == SHARED_INT_MAX || range < 1.)
{
x->x_sync = (x->x_isrunning ? 1. : 0.); /* CHECKED */
x->x_syncincr = 0.;
}
else
{
x->x_sync = (float)(phase - x->x_startindex) / range;
x->x_syncincr = 1. / range;
}
}
static void record_mstoindex(t_record *x)
{
t_arsic *sic = (t_arsic *)x;
x->x_startindex = (int)(x->x_startpoint * sic->s_ksr);
if (x->x_startindex < 0)
x->x_startindex = 0; /* CHECKED */
x->x_endindex = (int)(x->x_endpoint * sic->s_ksr);
if (x->x_endindex > sic->s_vecsize
|| x->x_endindex <= 0)
x->x_endindex = sic->s_vecsize; /* CHECKED (both ways) */
record_setsync(x);
}
static void record_set(t_record *x, t_symbol *s)
{
arsic_setarray((t_arsic *)x, s, 1);
record_mstoindex(x);
}
static void record_reset(t_record *x)
{
x->x_startpoint = x->x_endpoint = 0.;
x->x_pauseindex = SHARED_INT_MAX;
x->x_phase = SHARED_INT_MAX;
x->x_isrunning = 0;
record_mstoindex(x);
}
static void record_startpoint(t_record *x, t_floatarg f)
{
x->x_startpoint = f;
record_mstoindex(x);
}
static void record_endpoint(t_record *x, t_floatarg f)
{
x->x_endpoint = f;
record_mstoindex(x);
}
static void record_float(t_record *x, t_float f)
{
if (x->x_isrunning = (f != 0))
{
/* CHECKED: no (re)start in append mode */
/* LATER consider restart if x->x_pauseindex == SHARED_INT_MAX */
x->x_phase = x->x_appendmode ? x->x_pauseindex : x->x_startindex;
if (x->x_phase >= x->x_endindex) x->x_phase = SHARED_INT_MAX;
}
else if (x->x_phase != SHARED_INT_MAX) /* CHECKED: no rewind */
{
clock_delay(x->x_clock, 10.);
x->x_pauseindex = x->x_phase;
x->x_phase = SHARED_INT_MAX;
}
record_setsync(x);
}
static void record_append(t_record *x, t_floatarg f)
{
if (f != 0)
{
x->x_appendmode = 1; /* CHECKED: always allow appending */
}
else x->x_appendmode = 0;
}
static void record_loop(t_record *x, t_floatarg f)
{
x->x_loopmode = (f != 0);
}
static t_int *record_perform(t_int *w)
{
t_arsic *sic = (t_arsic *)(w[1]);
int nblock = (int)(w[2]);
int nch = sic->s_nchannels;
t_float *out = (t_float *)(w[3 + nch]);
t_record *x = (t_record *)sic;
int phase = x->x_phase;
int endphase = x->x_endindex;
float sync = x->x_sync;
if (sic->s_playable && endphase > phase)
{
int vecsize = sic->s_vecsize;
float syncincr = x->x_syncincr;
int ch, over, i, nxfer, ndone = 0;
loopover:
if ((nxfer = endphase - phase) > nblock)
{
nxfer = nblock;
over = 0;
}
else over = 1;
ch = nch;
while (ch--)
{
t_float *vp = sic->s_vectors[ch];
if (vp)
{
t_float *ip = (t_float *)(w[3 + ch]) + ndone;
vp += phase;
i = nxfer;
/* LATER consider handling under and overflows */
while (i--) *vp++ = *ip++;
}
}
i = nxfer;
sync = phase;
syncincr = 1.;
while (i--)
{
*out++ = sync;
sync += syncincr;
}
if (over)
{
clock_delay(x->x_clock, 0);
nblock -= nxfer;
if (x->x_loopmode
&& (phase = x->x_startindex) < endphase)
{
x->x_phase = phase;
x->x_sync = sync = 0;
if (nblock > 0)
{
ndone += nxfer;
goto loopover;
}
goto alldone;
}
/* CHECKED: no restart in append mode */
x->x_pauseindex = SHARED_INT_MAX;
x->x_phase = SHARED_INT_MAX;
x->x_sync = 1.;
x->x_syncincr = 0.;
}
else
{
x->x_phase += nxfer;
x->x_sync = sync;
goto alldone;
}
}
while (nblock--) *out++ = -1; //sync;
alldone:
return (w + sic->s_nperfargs + 1);
}
static void record_dsp(t_record *x, t_signal **sp)
{
arsic_dsp((t_arsic *)x, sp, record_perform, 1);
record_mstoindex(x);
}
static void record_free(t_record *x)
{
arsic_free((t_arsic *)x);
if (x->x_clock) clock_free(x->x_clock);
}
static void *record_new(t_symbol *s, t_floatarg f)
{
/* one auxiliary signal: sync output */
t_record *x = (t_record *)arsic_new(record_class, s, (int)f, 0, 1);
if (x)
{
int nch = arsic_getnchannels((t_arsic *)x);
arsic_setminsize((t_arsic *)x, 2);
x->x_appendmode = 0;
x->x_loopmode = 0;
record_reset(x);
x->x_clock = clock_new(x, (t_method)record_tick);
x->x_clocklasttick = clock_getlogicaltime();
while (--nch)
inlet_new((t_object *)x, (t_pd *)x, &s_signal, &s_signal);
inlet_new((t_object *)x, (t_pd *)x, &s_float, gensym("ft-2"));
inlet_new((t_object *)x, (t_pd *)x, &s_float, gensym("ft-1"));
outlet_new((t_object *)x, &s_signal);
}
return (x);
}
void record_tilde_setup(void)
{
record_class = class_new(gensym("record~"),
(t_newmethod)record_new,
(t_method)record_free,
sizeof(t_record), 0,
A_DEFSYM, A_DEFFLOAT, 0);
arsic_setup(record_class, record_dsp, record_float);
class_addmethod(record_class, (t_method)record_startpoint,
gensym("ft-2"), A_FLOAT, 0);
class_addmethod(record_class, (t_method)record_endpoint,
gensym("ft-1"), A_FLOAT, 0);
class_addmethod(record_class, (t_method)record_append,
gensym("append"), A_FLOAT, 0);
class_addmethod(record_class, (t_method)record_loop,
gensym("loop"), A_FLOAT, 0);
class_addmethod(record_class, (t_method)record_set,
gensym("set"), A_SYMBOL, 0);
class_addmethod(record_class, (t_method)record_reset,
gensym("reset"), 0);
}
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