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mmdevapi: Only enumerate devices that can be opened during initialization.

This commit is contained in:
Andrew Eikum 2011-07-13 14:30:45 -05:00 committed by Alexandre Julliard
parent deac5ceb1c
commit 2174717fbd
2 changed files with 27 additions and 3 deletions
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18
dlls/winealsa.drv/mmdevdrv.c
View File

@ -229,19 +229,22 @@ static HRESULT alsa_get_card_devices(EDataFlow flow, WCHAR **ids, char **keys,
static const WCHAR dashW[] = {' ','-',' ',0};
int err, device;
snd_pcm_info_t *info;
snd_pcm_stream_t stream = (flow == eRender ? SND_PCM_STREAM_PLAYBACK :
SND_PCM_STREAM_CAPTURE);
info = HeapAlloc(GetProcessHeap(), 0, snd_pcm_info_sizeof());
if(!info)
return E_OUTOFMEMORY;
snd_pcm_info_set_subdevice(info, 0);
snd_pcm_info_set_stream(info,
flow == eRender ? SND_PCM_STREAM_PLAYBACK : SND_PCM_STREAM_CAPTURE);
snd_pcm_info_set_stream(info, stream);
device = -1;
for(err = snd_ctl_pcm_next_device(ctl, &device); device != -1 && err >= 0;
err = snd_ctl_pcm_next_device(ctl, &device)){
const char *devname;
char devnode[32];
snd_pcm_t *handle;
snd_pcm_info_set_device(info, device);
@ -255,6 +258,15 @@ static HRESULT alsa_get_card_devices(EDataFlow flow, WCHAR **ids, char **keys,
continue;
}
sprintf(devnode, "hw:%d,%d", card, device);
if((err = snd_pcm_open(&handle, devnode, stream, SND_PCM_NONBLOCK)) < 0){
WARN("The device \"%s\" failed to open, pretending it doesn't exist: %d (%s)\n",
devnode, err, snd_strerror(err));
continue;
}
snd_pcm_close(handle);
if(ids && keys){
DWORD len, cardlen;
@ -286,7 +298,7 @@ static HRESULT alsa_get_card_devices(EDataFlow flow, WCHAR **ids, char **keys,
HeapFree(GetProcessHeap(), 0, ids[*num]);
return E_OUTOFMEMORY;
}
sprintf(keys[*num], "hw:%d,%d", card, device);
memcpy(keys[*num], devnode, sizeof(devnode));
}
++(*num);

12
dlls/wineoss.drv/mmdevdrv.c
View File

@ -285,6 +285,7 @@ HRESULT WINAPI AUDDRV_GetEndpointIDs(EDataFlow flow, WCHAR ***ids, void ***keys,
*def_index = -1;
for(i = 0; i < sysinfo.numaudios; ++i){
oss_audioinfo ai = {0};
int fd;
ai.dev = i;
if(ioctl(mixer_fd, SNDCTL_AUDIOINFO, &ai) < 0){
@ -293,6 +294,17 @@ HRESULT WINAPI AUDDRV_GetEndpointIDs(EDataFlow flow, WCHAR ***ids, void ***keys,
continue;
}
if(flow == eRender)
fd = open(ai.devnode, O_WRONLY, 0);
else
fd = open(ai.devnode, O_RDONLY, 0);
if(fd < 0){
WARN("Opening device \"%s\" failed, pretending it doesn't exist: %d (%s)",
ai.devnode, errno, strerror(errno));
continue;
}
close(fd);
if((flow == eCapture && (ai.caps & PCM_CAP_INPUT)) ||
(flow == eRender && (ai.caps & PCM_CAP_OUTPUT))){
size_t len;