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sndio: More improvements to the OpenBSD audio target (thanks, kdrakehp!). 

Fixes Bugzilla #3705.
This commit is contained in:
Ryan C. Gordon 2017-07-20 18:16:02 -04:00
parent 177f19aff0
commit ee9cc32493
1 changed files with 16 additions and 17 deletions
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33
src/audio/sndio/SDL_sndioaudio.c
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@ -48,13 +48,14 @@ static struct sio_hdl * (*SNDIO_sio_open)(const char *, unsigned int, int);
static void (*SNDIO_sio_close)(struct sio_hdl *);
static int (*SNDIO_sio_setpar)(struct sio_hdl *, struct sio_par *);
static int (*SNDIO_sio_getpar)(struct sio_hdl *, struct sio_par *);
static int (*SNDIO_sio_pollfd)(struct sio_hdl *, struct pollfd *, int);
static int (*SNDIO_sio_revents)(struct sio_hdl *, struct pollfd *);
static int (*SNDIO_sio_nfds)(struct sio_hdl *);
static int (*SNDIO_sio_start)(struct sio_hdl *);
static int (*SNDIO_sio_stop)(struct sio_hdl *);
static size_t (*SNDIO_sio_read)(struct sio_hdl *, void *, size_t);
static size_t (*SNDIO_sio_write)(struct sio_hdl *, const void *, size_t);
static int (*SNDIO_sio_nfds)(struct sio_hdl *);
static int (*SNDIO_sio_pollfd)(struct sio_hdl *, struct pollfd *, int);
static int (*SNDIO_sio_revents)(struct sio_hdl *, struct pollfd *);
static int (*SNDIO_sio_eof)(struct sio_hdl *);
static void (*SNDIO_sio_initpar)(struct sio_par *);
#ifdef SDL_AUDIO_DRIVER_SNDIO_DYNAMIC
@ -87,13 +88,14 @@ load_sndio_syms(void)
SDL_SNDIO_SYM(sio_close);
SDL_SNDIO_SYM(sio_setpar);
SDL_SNDIO_SYM(sio_getpar);
SDL_SNDIO_SYM(sio_pollfd);
SDL_SNDIO_SYM(sio_nfds);
SDL_SNDIO_SYM(sio_revents);
SDL_SNDIO_SYM(sio_start);
SDL_SNDIO_SYM(sio_stop);
SDL_SNDIO_SYM(sio_read);
SDL_SNDIO_SYM(sio_write);
SDL_SNDIO_SYM(sio_nfds);
SDL_SNDIO_SYM(sio_pollfd);
SDL_SNDIO_SYM(sio_revents);
SDL_SNDIO_SYM(sio_eof);
SDL_SNDIO_SYM(sio_initpar);
return 0;
}
@ -174,29 +176,26 @@ SNDIO_PlayDevice(_THIS)
static int
SNDIO_CaptureFromDevice(_THIS, void *buffer, int buflen)
{
size_t r;
int revents;
int nfds;
int i;
int r;
/* Emulate a blocking read */
for (i = SNDIO_sio_read(this->hidden->dev, buffer, buflen); i < buflen;) {
r = SNDIO_sio_read(this->hidden->dev, buffer, buflen);
while (r == 0 && !SNDIO_sio_eof(this->hidden->dev)) {
if ((nfds = SNDIO_sio_pollfd(this->hidden->dev, this->hidden->pfd, POLLIN)) <= 0
|| poll(this->hidden->pfd, nfds, INFTIM) <= 0) {
break;
return -1;
}
revents = SNDIO_sio_revents(this->hidden->dev, this->hidden->pfd);
revents = SNDIO_sio_revents(this->hidden->dev, this->hidden->pfd);
if (revents & POLLIN) {
if ((r = SNDIO_sio_read(this->hidden->dev, (char *)buffer + i, buflen - i)) == 0) {
break;
}
i += r;
r = SNDIO_sio_read(this->hidden->dev, buffer, buflen);
}
if (revents & POLLHUP) {
break;
}
}
return i;
return (int) r;
}
static void
@ -247,7 +246,7 @@ SNDIO_OpenDevice(_THIS, void *handle, const char *devname, int iscapture)
/* Capture devices must be non-blocking for SNDIO_FlushCapture */
if ((this->hidden->dev =
SNDIO_sio_open(devname != NULL ? SIO_DEVANY : devname,
SNDIO_sio_open(devname != NULL ? devname : SIO_DEVANY,
iscapture ? SIO_REC : SIO_PLAY, iscapture)) == NULL) {
return SDL_SetError("sio_open() failed");
}