/*
* attach play (rec) abuf structure to the device and
* switch to the ``RUN'' state; the play abug must not be empty
*/
int
wav_attach(struct wav *f, int force)
{
struct abuf *rbuf = NULL, *wbuf = NULL;
struct dev *d = f->dev;
if (f->mode & MODE_PLAY)
rbuf = LIST_FIRST(&f->pipe.file.rproc->outs);
if (f->mode & MODE_RECMASK)
wbuf = LIST_FIRST(&f->pipe.file.wproc->ins);
f->pstate = WAV_RUN;
#ifdef DEBUG
if (debug_level >= 3) {
wav_dbg(f);
dbg_puts(": attaching\n");
}
#endif
/*
* start the device (dev_getpos() and dev_attach() must
* be called on a started device
*/
dev_wakeup(d);
dev_attach(d, f->pipe.file.name, f->mode,
rbuf, &f->hpar, f->join ? d->opar.cmax - d->opar.cmin + 1 : 0,
wbuf, &f->hpar, f->join ? d->ipar.cmax - d->ipar.cmin + 1 : 0,
f->xrun, f->maxweight);
if (f->mode & MODE_PLAY)
dev_setvol(d, rbuf, MIDI_TO_ADATA(f->vol));
return 1;
}
/*
* callback to set the volume, invoked by the MIDI control code
*/
void
wav_setvol(void *arg, unsigned int vol)
{
struct wav *f = (struct wav *)arg;
struct abuf *rbuf;
f->vol = vol;
if ((f->mode & MODE_PLAY) && f->pstate == WAV_RUN) {
rbuf = LIST_FIRST(&f->pipe.file.rproc->outs);
dev_setvol(f->dev, rbuf, MIDI_TO_ADATA(vol));
}
}
struct opt *
mkopt(char *path, struct dev *d,
int pmin, int pmax, int rmin, int rmax,
int mode, int vol, int mmc, int dup)
{
struct opt *o;
o = opt_new(path, d, pmin, pmax, rmin, rmax,
MIDI_TO_ADATA(vol), mmc, dup, mode);
if (o == NULL)
errx(1, "%s: couldn't create subdev", path);
dev_adjpar(d, o->mode, o->pmin, o->pmax, o->rmin, o->rmax);
return o;
}
struct opt *
mkopt(char *path, struct dev *d, struct aparams *rpar, struct aparams *ppar,
int mode, int vol, int mmc, int join)
{
struct opt *o;
if (d->reqmode & MODE_LOOP)
errx(1, "%s: can't attach to loopback", path);
if (d->reqmode & MODE_THRU)
mode = MODE_MIDIMASK;
if (!rpar->rate)
ppar->rate = rpar->rate = DEFAULT_RATE;
o = opt_new(path, d, rpar, ppar, MIDI_TO_ADATA(vol), mmc, join, mode);
if (o == NULL)
errx(1, "%s: couldn't create subdev", path);
dev_adjpar(d, o->mode, rpar, ppar);
return o;
}
/*
* create a file reader in the ``INIT'' state
*/
struct wav *
wav_new_in(struct fileops *ops, struct dev *dev,
unsigned int mode, char *name, unsigned int hdr,
struct aparams *par, unsigned int xrun,
unsigned int volctl, int mmc, int join)
{
int fd;
struct wav *f;
if (!wav_autohdr(name, dev, &hdr, &mode))
return NULL;
if (strcmp(name, "-") == 0) {
fd = STDIN_FILENO;
if (fcntl(fd, F_SETFL, O_NONBLOCK) < 0)
perror(name);
} else {
fd = open(name, O_RDONLY | O_NONBLOCK, 0666);
if (fd < 0) {
perror(name);
return NULL;
}
}
f = (struct wav *)pipe_new(ops, fd, name);
if (f == NULL) {
close(fd);
return NULL;
}
f->mode = mode;
f->pstate = WAV_CFG;
f->endpos = f->startpos = 0;
f->next = wav_list;
wav_list = f;
if (hdr == HDR_WAV) {
if (!wav_readhdr(f->pipe.fd, par,
&f->startpos, &f->rbytes, &f->map)) {
file_del((struct file *)f);
return NULL;
}
f->endpos = f->startpos + f->rbytes;
} else {
f->endpos = pipe_endpos(&f->pipe.file);
if (f->endpos > 0) {
if (!pipe_seek(&f->pipe.file, 0)) {
file_del((struct file *)f);
return NULL;
}
f->rbytes = f->endpos;
} else
f->rbytes = -1;
f->map = NULL;
}
f->dev = dev;
f->mmc = mmc;
f->join = join;
f->mode = mode;
f->hpar = *par;
f->hdr = hdr;
f->xrun = xrun;
f->maxweight = MIDI_TO_ADATA(volctl);
f->slot = -1;
rwav_new((struct file *)f);
#ifdef DEBUG
if (debug_level >= 2) {
dbg_puts(name);
dbg_puts(":");
if (f->mode & MODE_PLAY) {
dbg_puts(" playing ");
aparams_dbg(par);
dbg_puts(" ");
dbg_putu(f->startpos);
dbg_puts("..");
dbg_putu(f->endpos);
if (f->mmc)
dbg_puts(", mmc");
}
if (f->mode & MODE_MIDIOUT)
dbg_puts(" midi/out");
dbg_puts("\n");
}
#endif
return f;
}
