/*
* callback to start the stream, invoked by the MIDI control code
*/
void
wav_startreq(void *arg)
{
struct wav *f = (struct wav *)arg;
switch (f->pstate) {
case WAV_INIT:
#ifdef DEBUG
if (debug_level >= 2) {
wav_dbg(f);
dbg_puts(": skipped (failed to seek)\n");
}
#endif
return;
case WAV_READY:
if (f->mode & MODE_RECMASK)
f->endpos = f->mmcpos + f->startpos;
(void)wav_attach(f, 0);
break;
#ifdef DEBUG
default:
wav_dbg(f);
dbg_puts(": not in READY state\n");
dbg_panic();
break;
#endif
}
}
/*
* close method of the file structure
*/
void
wav_close(struct file *file)
{
struct wav *f = (struct wav *)file, **pf;
if (f->mode & MODE_RECMASK) {
pipe_trunc(&f->pipe.file, f->endpos);
if (f->hdr == HDR_WAV) {
wav_writehdr(f->pipe.fd,
&f->hpar,
&f->startpos,
f->endpos - f->startpos);
}
}
pipe_close(file);
if (f->pstate != WAV_CFG)
dev_unref(f->dev);
for (pf = &wav_list; *pf != f; pf = &(*pf)->next) {
#ifdef DEBUG
if (*pf == NULL) {
dbg_puts("wav_close: not on list\n");
dbg_panic();
}
#endif
}
*pf = f->next;
}
/*
* callback to relocate the stream, invoked by the MIDI control code
* on a stopped stream
*/
void
wav_locreq(void *arg, unsigned int mmc)
{
struct wav *f = (struct wav *)arg;
#ifdef DEBUG
if (f->pstate == WAV_RUN) {
wav_dbg(f);
dbg_puts(": in RUN state\n");
dbg_panic();
}
#endif
f->mmcpos = f->startpos +
((off_t)mmc * f->hpar.rate / MTC_SEC) * aparams_bpf(&f->hpar);
(void)wav_seekmmc(f);
}
/*
* read samples from the file and possibly start it
*/
int
wav_rdata(struct wav *f)
{
struct aproc *p;
struct abuf *obuf;
p = f->pipe.file.rproc;
obuf = LIST_FIRST(&p->outs);
if (obuf == NULL)
return 0;
if (!ABUF_WOK(obuf) || !(f->pipe.file.state & FILE_ROK))
return 0;
if (!rfile_do(p, obuf->len, NULL))
return 0;
switch (f->pstate) {
case WAV_START:
if (!ABUF_WOK(obuf) || (f->pipe.file.state & FILE_EOF))
f->pstate = WAV_READY;
/* PASSTHROUGH */
case WAV_READY:
if (dev_slotstart(f->dev, f->slot))
(void)wav_attach(f, 0);
break;
case WAV_RUN:
break;
case WAV_MIDI:
return 1;
#ifdef DEBUG
default:
wav_dbg(f);
dbg_puts(": bad state\n");
dbg_panic();
#endif
}
if (f->rbytes == 0 && f->mmc) {
#ifdef DEBUG
if (debug_level >= 3) {
wav_dbg(f);
dbg_puts(": trying to restart\n");
}
#endif
if (!wav_seekmmc(f))
return 0;
}
return 1;
}
void
siofile_cb(void *addr, int delta)
{
struct siofile *f = (struct siofile *)addr;
struct aproc *p;
#ifdef DEBUG
if (delta < 0 || delta > (60 * RATE_MAX)) {
file_dbg(&f->file);
dbg_puts(": ");
dbg_puti(delta);
dbg_puts(": bogus sndio delta");
dbg_panic();
}
if (debug_level >= 4) {
file_dbg(&f->file);
dbg_puts(": tick, delta = ");
dbg_puti(delta);
dbg_puts(", load = ");
dbg_puti((file_utime - f->utime) / 1000);
dbg_puts(" + ");
dbg_puti((file_wtime - f->wtime) / 1000);
dbg_puts("\n");
}
f->wtime = file_wtime;
f->utime = file_utime;
#endif
if (delta != 0) {
p = f->file.wproc;
if (p && p->ops->opos)
p->ops->opos(p, NULL, delta);
p = f->file.rproc;
if (p && p->ops->ipos)
p->ops->ipos(p, NULL, delta);
}
if (f->onmove)
f->onmove(f->arg, delta);
f->wtickets += delta * f->wbpf;
f->rtickets += delta * f->rbpf;
}
/*
* switch to the ``INIT'' state performing
* necessary actions to reach it
*/
void
wav_reset(struct wav *f)
{
switch (f->pstate) {
case WAV_START:
case WAV_READY:
if (dev_slotstart(f->dev, f->slot))
(void)wav_attach(f, 1);
/* PASSTHROUGH */
case WAV_RUN:
wav_freebuf(f);
/* PASSTHROUGH */
case WAV_INIT:
/* nothing yet */
break;
#ifdef DEBUG
case WAV_MIDI:
dbg_puts("wav_reset: in midi mode\n");
dbg_panic();
#endif
}
}
