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now it actually DOES work for me :/

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This commit is contained in:
Bill Currie 2000-12-13 17:07:02 +00:00
parent 9b99313852
commit d82f4f6b56
1 changed files with 18 additions and 9 deletions
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17
source/snd_alsa_0_6.c
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@ -46,6 +46,7 @@ static int snd_inited;
static snd_pcm_t *pcm_handle; static snd_pcm_t *pcm_handle;
static snd_pcm_hw_info_t hwinfo; static snd_pcm_hw_info_t hwinfo;
static snd_pcm_hw_params_t hwparams; static snd_pcm_hw_params_t hwparams;
static snd_pcm_sw_params_t swparams;
static const snd_pcm_channel_area_t *mmap_running_areas; static const snd_pcm_channel_area_t *mmap_running_areas;
static int card = -1, dev = -1; static int card = -1, dev = -1;
@ -211,14 +212,21 @@ SNDDMA_Init (void)
hwparams.fragment_size = 512; hwparams.fragment_size = 512;
hwparams.fragments = 32; hwparams.fragments = 32;
while (1) {
err_msg = "snd_pcm_hw_params"; err_msg = "snd_pcm_hw_params";
if ((rc = snd_pcm_hw_params (pcm_handle, &hwparams)) < 0) { if ((rc = snd_pcm_hw_params (pcm_handle, &hwparams)) < 0) {
Con_Printf("failed: %08x\n", hwparams.fail_mask); Con_Printf("failed: %08x\n", hwparams.fail_mask);
goto error; goto error;
} }
break; // XXX memset (&swparams, 0, sizeof (swparams));
swparams.start_mode = SND_PCM_START_EXPLICIT;
swparams.xrun_mode = SND_PCM_XRUN_NONE;
swparams.xfer_min = 1;
swparams.xfer_align = 1;
err_msg = "snd_pcm_sw_params";
if ((rc = snd_pcm_sw_params (pcm_handle, &swparams)) < 0) {
Con_Printf("failed: %08x\n", swparams.fail_mask);
goto error;
} }
err_msg = "audio prepare"; err_msg = "audio prepare";
@ -234,8 +242,8 @@ SNDDMA_Init (void)
shm->submission_chunk = frag_size; // don't mix less than this # shm->submission_chunk = frag_size; // don't mix less than this #
shm->samplepos = 0; // in mono samples shm->samplepos = 0; // in mono samples
shm->samplebits = hwparams.format == SND_PCM_FORMAT_S16_LE ? 16 : 8; shm->samplebits = hwparams.format == SND_PCM_FORMAT_S16_LE ? 16 : 8;
shm->samples = hwparams.fragment_size * hwparams.fragments * shm->channels; // mono samples in shm->samples = hwparams.fragment_size * hwparams.fragments
// buffer * shm->channels; // mono samples in buffer
shm->speed = hwparams.rate; shm->speed = hwparams.rate;
shm->buffer = (unsigned char *) mmap_running_areas->addr; shm->buffer = (unsigned char *) mmap_running_areas->addr;
Con_Printf ("%5d stereo\n", shm->channels - 1); Con_Printf ("%5d stereo\n", shm->channels - 1);
@ -339,6 +347,7 @@ SNDDMA_Submit (void)
} }
break; break;
default: default:
printf("umm\n");
break; break;
} }
} }