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Attempt to work around BSD segfault.

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Ragnvald Maartmann-Moe IV 2002-08-24 07:40:10 +00:00
parent 876eaa467c
commit 9d6bdf5fca
1 changed files with 25 additions and 19 deletions
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22
libs/audio/targets/snd_oss.c
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@ -72,14 +72,15 @@ static int snd_inited;
static int mmaped_io = 0;
static const char *snd_dev = "/dev/dsp";
static volatile dma_t sn;
static int tryrates[] = { 11025, 22050, 22051, 44100, 8000 };
static cvar_t *snd_stereo;
static cvar_t *snd_rate;
static cvar_t *snd_device;
static cvar_t *snd_bits;
static cvar_t *snd_oss_mmaped;
static int tryrates[] = { 11025, 22050, 22051, 44100, 8000 };
static plugin_t plugin_info;
static plugin_data_t plugin_info_data;
static plugin_funcs_t plugin_info_funcs;
@ -245,12 +246,15 @@ SNDDMA_Init (void)
return 0;
}
if (mmaped_io) {
// memory map the dma buffer
if (mmaped_io) { // memory map the dma buffer
shm->buffer = (unsigned char *) mmap
(NULL, info.fragstotal * info.fragsize, PROT_WRITE,
(NULL, info.fragstotal * info.fragsize,
#if (defined(BSD)) // workaround for BSD OSS quirk
PROT_READ | PROT_WRITE,
#else
PROT_WRITE,
#endif
MAP_FILE | MAP_SHARED, audio_fd, 0);
if (shm->buffer == MAP_FAILED) {
perror (snd_dev);
Sys_Printf ("Could not mmap %s\n", snd_dev);
@ -330,17 +334,19 @@ SNDDMA_Shutdown (void)
}
}
#define BITSIZE (shm->samplebits / 8)
#define BYTES (samples / BITSIZE)
/*
SNDDMA_Submit
Send sound to device if buffer isn't really the dma buffer
*/
#define BITSIZE (shm->samplebits / 8)
#define BYTES (samples / BITSIZE)
static void
SNDDMA_Submit (void)
{
int samples;
if (snd_inited && !mmaped_io) {
samples = *plugin_info_snd_output_data.paintedtime
- *plugin_info_snd_output_data.soundtime;