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Patch to get oss sound working in BSD thanks to Alexander Leidinger 

<Alexander@Leidinger.net>
This commit is contained in:
Bill Currie 2002-06-10 15:36:33 +00:00
parent 374d229a0e
commit a7f1e1185b
1 changed files with 49 additions and 59 deletions
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108
libs/audio/targets/snd_oss.c
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@ -196,6 +196,55 @@ SNDDMA_Init (void)
shm->samples = info.fragstotal * info.fragsize / (shm->samplebits / 8);
shm->submission_chunk = 1;
tmp = 0;
if (shm->channels == 2)
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);
close (audio_fd);
return 0;
}
if (tmp)
shm->channels = 2;
else
shm->channels = 1;
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);
close (audio_fd);
return 0;
}
if (shm->samplebits == 16) {
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");
close (audio_fd);
return 0;
}
} else if (shm->samplebits == 8) {
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");
close (audio_fd);
return 0;
}
} else {
perror (snd_dev);
Sys_Printf ("%d-bit sound not supported.", shm->samplebits);
close (audio_fd);
return 0;
}
if (mmaped_io) {
// memory map the dma buffer
shm->buffer = (unsigned char *) mmap
@ -217,65 +266,6 @@ SNDDMA_Init (void)
}
}
tmp = 0;
if (shm->channels == 2)
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);
if (mmaped_io)
munmap (shm->buffer, shm->samples * shm->samplebits / 8);
close (audio_fd);
return 0;
}
if (tmp)
shm->channels = 2;
else
shm->channels = 1;
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);
if (mmaped_io)
munmap (shm->buffer, shm->samples * shm->samplebits / 8);
close (audio_fd);
return 0;
}
if (shm->samplebits == 16) {
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");
if (mmaped_io)
munmap (shm->buffer, shm->samples * shm->samplebits / 8);
close (audio_fd);
return 0;
}
} else if (shm->samplebits == 8) {
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");
if (mmaped_io)
munmap (shm->buffer, shm->samples * shm->samplebits / 8);
close (audio_fd);
return 0;
}
} else {
perror (snd_dev);
Sys_Printf ("%d-bit sound not supported.", shm->samplebits);
if (mmaped_io)
munmap (shm->buffer, shm->samples * shm->samplebits / 8);
close (audio_fd);
return 0;
}
// toggle the trigger & start her up
tmp = 0;
rc = ioctl (audio_fd, SNDCTL_DSP_SETTRIGGER, &tmp);