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if at first you don't succeed...

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This commit is contained in:
Bill Currie 2003-07-10 22:20:29 +00:00
parent 42aeb83c32
commit 6efa0ca736
1 changed files with 30 additions and 33 deletions
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63
libs/audio/targets/snd_oss.c
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@ -50,6 +50,12 @@ static __attribute__ ((unused)) const char rcsid[] =
#elif HAVE_MACHINE_SOUNDCARD_H
# include <machine/soundcard.h>
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <errno.h>
#include <fcntl.h>
@ -84,7 +90,6 @@ static cvar_t *snd_rate;
static cvar_t *snd_device;
static cvar_t *snd_bits;
static cvar_t *snd_oss_mmaped;
static cvar_t *snd_oss_rw;
static plugin_t plugin_info;
static plugin_data_t plugin_info_data;
@ -108,13 +113,10 @@ SNDDMA_Init_Cvars (void)
"sound sample depth. 0 is system default");
snd_oss_mmaped = Cvar_Get ("snd_oss_mmaped", "1", CVAR_ROM, NULL,
"mmaped io");
snd_oss_rw = Cvar_Get ("snd_oss_rw", "0", CVAR_ROM, NULL,
"open the sound device in read/write rather than "
"write-only mode");
}
static qboolean
SNDDMA_Init (void)
static int
try_open (int rw)
{
int caps, fmt, rc, tmp, i;
int retries = 3;
@ -130,7 +132,7 @@ SNDDMA_Init (void)
if (snd_device->string[0])
snd_dev = snd_device->string;
if (snd_oss_rw->int_val) {
if (rw) {
omode = O_RDWR;
mmmode |= PROT_READ;
mmflags |= MAP_SHARED;
@ -145,22 +147,19 @@ SNDDMA_Init (void)
audio_fd = open (snd_dev, omode);
}
if (audio_fd < 0) {
perror (snd_dev);
Sys_Printf ("Could not open %s\n", snd_dev);
Sys_Printf ("Could not open %s: %s\n", snd_dev, strerror (errno));
return 0;
}
}
if ((rc = ioctl (audio_fd, SNDCTL_DSP_RESET, 0)) < 0) {
perror (snd_dev);
Sys_Printf ("Could not reset %s\n", snd_dev);
Sys_Printf ("Could not reset %s: %s\n", snd_dev, strerror (errno));
close (audio_fd);
return 0;
}
if (ioctl (audio_fd, SNDCTL_DSP_GETCAPS, &caps) == -1) {
perror (snd_dev);
Sys_Printf ("Sound driver too old\n");
Sys_Printf ("Sound driver too old: %s\n", strerror (errno));
close (audio_fd);
return 0;
}
@ -172,8 +171,7 @@ SNDDMA_Init (void)
}
if (ioctl (audio_fd, SNDCTL_DSP_GETOSPACE, &info) == -1) {
perror ("GETOSPACE");
Sys_Printf ("Um, can't do GETOSPACE?\n");
Sys_Printf ("Um, can't do GETOSPACE?: %s\n", strerror (errno));
close (audio_fd);
return 0;
}
@ -219,8 +217,7 @@ SNDDMA_Init (void)
tmp = 1;
rc = ioctl (audio_fd, SNDCTL_DSP_STEREO, &tmp);
if (rc < 0) {
perror (snd_dev);
Sys_Printf ("Could not set %s to stereo=%d", snd_dev, shm->channels);
Sys_Printf ("Could not set %s to stereo=%d: %s\n", snd_dev, shm->channels, strerror (errno));
close (audio_fd);
return 0;
}
@ -232,8 +229,7 @@ SNDDMA_Init (void)
rc = ioctl (audio_fd, SNDCTL_DSP_SPEED, &shm->speed);
if (rc < 0) {
perror (snd_dev);
Sys_Printf ("Could not set %s speed to %d", snd_dev, shm->speed);
Sys_Printf ("Could not set %s speed to %d: %s\n", snd_dev, shm->speed, strerror (errno));
close (audio_fd);
return 0;
}
@ -242,8 +238,7 @@ SNDDMA_Init (void)
rc = AFMT_S16_LE;
rc = ioctl (audio_fd, SNDCTL_DSP_SETFMT, &rc);
if (rc < 0) {
perror (snd_dev);
Sys_Printf ("Could not support 16-bit data. Try 8-bit.\n");
Sys_Printf ("Could not support 16-bit data. Try 8-bit. %s\n", strerror (errno));
close (audio_fd);
return 0;
}
@ -251,14 +246,12 @@ SNDDMA_Init (void)
rc = AFMT_U8;
rc = ioctl (audio_fd, SNDCTL_DSP_SETFMT, &rc);
if (rc < 0) {
perror (snd_dev);
Sys_Printf ("Could not support 8-bit data.\n");
Sys_Printf ("Could not support 8-bit data. %s\n", strerror (errno));
close (audio_fd);
return 0;
}
} else {
perror (snd_dev);
Sys_Printf ("%d-bit sound not supported.", shm->samplebits);
Sys_Printf ("%d-bit sound not supported. %s", shm->samplebits, strerror (errno));
close (audio_fd);
return 0;
}
@ -270,8 +263,7 @@ SNDDMA_Init (void)
len = (len + sz - 1) & ~(sz - 1);
shm->buffer = (byte *) mmap (NULL, len, mmmode, mmflags, audio_fd, 0);
if (shm->buffer == MAP_FAILED) {
perror (snd_dev);
Sys_Printf ("Could not mmap %s\n", snd_dev);
Sys_Printf ("Could not mmap %s: %s\n", snd_dev, strerror (errno));
close (audio_fd);
return 0;
}
@ -288,8 +280,7 @@ SNDDMA_Init (void)
tmp = 0;
rc = ioctl (audio_fd, SNDCTL_DSP_SETTRIGGER, &tmp);
if (rc < 0) {
perror (snd_dev);
Sys_Printf ("Could not toggle.\n");
Sys_Printf ("Could not toggle.: %s\n", strerror (errno));
if (mmaped_io)
munmap (shm->buffer, shm->samples * shm->samplebits / 8);
close (audio_fd);
@ -298,8 +289,7 @@ SNDDMA_Init (void)
tmp = PCM_ENABLE_OUTPUT;
rc = ioctl (audio_fd, SNDCTL_DSP_SETTRIGGER, &tmp);
if (rc < 0) {
perror (snd_dev);
Sys_Printf ("Could not toggle.\n");
Sys_Printf ("Could not toggle.: %s\n", strerror (errno));
if (mmaped_io)
munmap (shm->buffer, shm->samples * shm->samplebits / 8);
close (audio_fd);
@ -312,6 +302,14 @@ SNDDMA_Init (void)
return 1;
}
static qboolean
SNDDMA_Init (void)
{
if (try_open (0))
return 1;
return try_open (1);
}
static int
SNDDMA_GetDMAPos (void)
{
@ -321,8 +319,7 @@ SNDDMA_GetDMAPos (void)
return 0;
if (ioctl (audio_fd, SNDCTL_DSP_GETOPTR, &count) == -1) {
perror (snd_dev);
Sys_Printf ("Uh, sound dead.\n");
Sys_Printf ("Uh, %s dead: %s\n", snd_dev, strerror (errno));
if (mmaped_io)
munmap (shm->buffer, shm->samples * shm->samplebits / 8);
close (audio_fd);