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now has problems with setting the parameters

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Bill Currie 2000-12-12 23:38:53 +00:00
parent c4f186d0ec
commit bf066ac5e6
1 changed files with 13 additions and 12 deletions
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25
source/snd_alsa_0_6.c
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@ -157,13 +157,14 @@ SNDDMA_Init (void)
dev_openned:
Con_Printf ("Using card %d, device %d.\n", card, dev);
memset (&hwinfo, 0, sizeof (hwinfo));
snd_pcm_hw_info_any (&hwinfo);
hwinfo.access_mask = SND_PCM_ACCBIT_MMAP_INTERLEAVED;
err_msg = "snd_pcm_hw_info";
if ((rc = snd_pcm_hw_info (pcm_handle, &hwinfo)) < 0)
goto error;
Con_Printf ("%08x %08x\n", hwinfo.access_mask, hwinfo.format_mask);
rate = 44100;
frag_size = 4;
format = SND_PCM_FMTBIT_S16_LE;
#if 0 // XXX
if ((rate == -1 || rate == 44100) && hwinfo.rates & SND_PCM_RATE_44100) {
rate = 44100;
@ -180,19 +181,19 @@ SNDDMA_Init (void)
Con_Printf ("ALSA: desired rates not supported\n");
goto error_2;
}
#endif
if ((format == -1 || format == SND_PCM_FMTBIT_S16_LE)
&& hwinfo.format_mask & SND_PCM_FMTBIT_S16_LE) {
format = SND_PCM_FMTBIT_S16_LE;
} else if ((format == -1 || format == SND_PCM_FMTBIT_U8)
&& hwinfo.format_mask & SND_PCM_FMTBIT_U8) {
format = SND_PCM_FMTBIT_U8;
&& hwinfo.format_mask & SND_PCM_FORMAT_S16_LE) {
format = SND_PCM_FORMAT_S16_LE;
} else if ((format == -1 || format == SND_PCM_FORMAT_U8)
&& hwinfo.format_mask & SND_PCM_FORMAT_U8) {
format = SND_PCM_FORMAT_U8;
} else {
Con_Printf ("ALSA: desired formats not supported\n");
goto error_2;
}
#endif
// XXX can't support non-interleaved stereo
if (stereo && (hwinfo.access_mask & SND_PCM_INFO_INTERLEAVED)
if (stereo && (hwinfo.access_mask & SND_PCM_ACCBIT_MMAP_INTERLEAVED)
&& hwinfo.channels_max >= 2) {
stereo = 1;
} else {
@ -208,10 +209,10 @@ SNDDMA_Init (void)
hwparams.channels = stereo + 1;
hwparams.fragment_size = frag_size;
hwparams.fragments = (1 << 17) / frag_size;
hwparams.fragments = hwinfo.fragments_max;
while (1) {
err_msg = "audio params";
err_msg = "snd_pcm_hw_params";
if ((rc = snd_pcm_hw_params (pcm_handle, &hwparams)) < 0)
goto error;
@ -228,7 +229,7 @@ SNDDMA_Init (void)
shm->channels = hwparams.channels;
shm->submission_chunk = frag_size; // don't mix less than this #
shm->samplepos = 0; // in mono samples
shm->samplebits = hwparams.format == SND_PCM_FMTBIT_S16_LE ? 16 : 8;
shm->samplebits = hwparams.format == SND_PCM_FORMAT_S16_LE ? 16 : 8;
shm->samples = hwparams.fragments * shm->channels; // mono samples in
// buffer
shm->speed = hwparams.rate;
@ -246,7 +247,7 @@ SNDDMA_Init (void)
return 1;
error:
Con_Printf ("Error: %s: %s\n", err_msg, snd_strerror (rc));
// XXXerror_2:
error_2:
snd_pcm_close (pcm_handle);
return 0;
}