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(OSS) Get rid of static globals

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This commit is contained in:
twinaphex 2020-09-20 23:30:19 +02:00
parent 11b4043ef6
commit e50d5af2db
1 changed files with 37 additions and 30 deletions
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67
audio/drivers/oss.c
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@ -42,23 +42,27 @@
#define DEFAULT_OSS_DEV "/dev/dsp"
#endif
/* TODO/FIXME - static global variable */
static bool oss_is_paused = false;
typedef struct oss_audio
{
int fd;
bool is_paused;
} oss_audio_t;
static void *oss_init(const char *device, unsigned rate, unsigned latency,
static void *oss_init(const char *device,
unsigned rate, unsigned latency,
unsigned block_frames,
unsigned *new_out_rate)
{
int frags, frag, channels, format, new_rate;
int *fd = (int*)calloc(1, sizeof(int));
oss_audio_t *ossaudio = (oss_audio_t*)calloc(1, sizeof(oss_audio_t));
const char *oss_device = device ? device : DEFAULT_OSS_DEV;
if (!fd)
if (!ossaudio)
return NULL;
if ((*fd = open(oss_device, O_WRONLY)) < 0)
if ((ossaudio->fd = open(oss_device, O_WRONLY)) < 0)
{
free(fd);
free(ossaudio);
perror("open");
return NULL;
}
@ -66,21 +70,21 @@ static void *oss_init(const char *device, unsigned rate, unsigned latency,
frags = (latency * rate * 4) / (1000 * (1 << 10));
frag = (frags << 16) | 10;
if (ioctl(*fd, SNDCTL_DSP_SETFRAGMENT, &frag) < 0)
if (ioctl(ossaudio->fd, SNDCTL_DSP_SETFRAGMENT, &frag) < 0)
RARCH_WARN("Cannot set fragment sizes. Latency might not be as expected ...\n");
channels = 2;
format = is_little_endian() ? AFMT_S16_LE : AFMT_S16_BE;
if (ioctl(*fd, SNDCTL_DSP_CHANNELS, &channels) < 0)
if (ioctl(ossaudio->fd, SNDCTL_DSP_CHANNELS, &channels) < 0)
goto error;
if (ioctl(*fd, SNDCTL_DSP_SETFMT, &format) < 0)
if (ioctl(ossaudio->fd, SNDCTL_DSP_SETFMT, &format) < 0)
goto error;
new_rate = rate;
if (ioctl(*fd, SNDCTL_DSP_SPEED, &new_rate) < 0)
if (ioctl(ossaudio->fd, SNDCTL_DSP_SPEED, &new_rate) < 0)
goto error;
if (new_rate != (int)rate)
@ -89,11 +93,12 @@ static void *oss_init(const char *device, unsigned rate, unsigned latency,
*new_out_rate = new_rate;
}
return fd;
return ossaudio;
error:
close(*fd);
free(fd);
close(ossaudio->fd);
if (ossaudio)
free(ossaudio);
perror("ioctl");
return NULL;
}
@ -101,14 +106,14 @@ error:
static ssize_t oss_write(void *data, const void *buf, size_t size)
{
ssize_t ret;
int *fd = (int*)data;
oss_audio_t *ossaudio = (oss_audio_t*)data;
if (size == 0)
return 0;
if ((ret = write(*fd, buf, size)) < 0)
if ((ret = write(ossaudio->fd, buf, size)) < 0)
{
if (errno == EAGAIN && (fcntl(*fd, F_GETFL) & O_NONBLOCK))
if (errno == EAGAIN && (fcntl(ossaudio->fd, F_GETFL) & O_NONBLOCK))
return 0;
return -1;
@ -119,9 +124,9 @@ static ssize_t oss_write(void *data, const void *buf, size_t size)
static bool oss_stop(void *data)
{
int *fd = (int*)data;
oss_audio_t *ossaudio = (oss_audio_t*)data;
if (ioctl(*fd, SNDCTL_DSP_RESET, 0) < 0)
if (ioctl(ossaudio->fd, SNDCTL_DSP_RESET, 0) < 0)
return false;
oss_is_paused = true;
@ -144,33 +149,35 @@ static bool oss_alive(void *data)
static void oss_set_nonblock_state(void *data, bool state)
{
int rc;
int *fd = (int*)data;
oss_audio_t *ossaudio = (oss_audio_t*)data;
if (state)
rc = fcntl(*fd, F_SETFL, fcntl(*fd, F_GETFL) | O_NONBLOCK);
rc = fcntl(ossaudio->fd, F_SETFL,
fcntl(ossaudio->fd, F_GETFL) | O_NONBLOCK);
else
rc = fcntl(*fd, F_SETFL, fcntl(*fd, F_GETFL) & (~O_NONBLOCK));
rc = fcntl(ossaudio->fd, F_SETFL,
fcntl(ossaudio->fd, F_GETFL) & (~O_NONBLOCK));
if (rc != 0)
RARCH_WARN("Could not set nonblocking on OSS file descriptor. Will not be able to fast-forward.\n");
}
static void oss_free(void *data)
{
int *fd = (int*)data;
oss_audio_t *ossaudio = (oss_audio_t*)data;
if (ioctl(*fd, SNDCTL_DSP_RESET, 0) < 0)
if (ioctl(ossaudio->fd, SNDCTL_DSP_RESET, 0) < 0)
return;
close(*fd);
free(fd);
close(ossaudio->fd);
free(data);
}
static size_t oss_write_avail(void *data)
{
audio_buf_info info;
int *fd = (int*)data;
oss_audio_t *ossaudio = (oss_audio_t*)data;
if (ioctl(*fd, SNDCTL_DSP_GETOSPACE, &info) < 0)
if (ioctl(ossaudio->fd, SNDCTL_DSP_GETOSPACE, &info) < 0)
{
RARCH_ERR("[OSS]: SNDCTL_DSP_GETOSPACE failed ...\n");
return 0;
@ -182,9 +189,9 @@ static size_t oss_write_avail(void *data)
static size_t oss_buffer_size(void *data)
{
audio_buf_info info;
int *fd = (int*)data;
oss_audio_t *ossaudio = (oss_audio_t*)data;
if (ioctl(*fd, SNDCTL_DSP_GETOSPACE, &info) < 0)
if (ioctl(ossaudio->fd, SNDCTL_DSP_GETOSPACE, &info) < 0)
{
RARCH_ERR("[OSS]: SNDCTL_DSP_GETOSPACE failed ...\n");
return 1; /* Return something non-zero to avoid SIGFPE. */