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winealsa: Move the pcm device opening to a helper. 

This will allow GetMixFormat and IsFormatSupported to share
this code without needing a stream.

Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Andrew Eikum <aeikum@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Huw Davies 2022-02-16 09:34:50 +00:00 committed by Alexandre Julliard
parent 04d01ee3c2
commit 2df122934e
1 changed files with 31 additions and 19 deletions
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50
dlls/winealsa.drv/mmdevdrv.c
View File

@ -442,10 +442,37 @@ static BOOL get_alsa_name_by_guid(GUID *guid, char *name, DWORD name_size, EData
return FALSE;
}
static HRESULT alsa_open_device(const char *alsa_name, EDataFlow flow, snd_pcm_t **pcm_handle,
snd_pcm_hw_params_t **hw_params)
{
int err;
if(flow != eRender && flow != eCapture)
return E_UNEXPECTED;
err = snd_pcm_open(pcm_handle, alsa_name, alsa_get_direction(flow), SND_PCM_NONBLOCK);
if(err < 0){
WARN("Unable to open PCM \"%s\": %d (%s)\n", alsa_name, err, snd_strerror(err));
switch(err){
case -EBUSY:
return AUDCLNT_E_DEVICE_IN_USE;
default:
return AUDCLNT_E_ENDPOINT_CREATE_FAILED;
}
}
*hw_params = HeapAlloc(GetProcessHeap(), 0, snd_pcm_hw_params_sizeof());
if(!*hw_params){
snd_pcm_close(*pcm_handle);
return E_OUTOFMEMORY;
}
return S_OK;
}
HRESULT WINAPI AUDDRV_GetAudioEndpoint(GUID *guid, IMMDevice *dev, IAudioClient **out)
{
ACImpl *This;
int err;
char alsa_name[256];
EDataFlow dataflow;
HRESULT hr;
@ -486,26 +513,11 @@ HRESULT WINAPI AUDDRV_GetAudioEndpoint(GUID *guid, IMMDevice *dev, IAudioClient
return E_OUTOFMEMORY;
}
err = snd_pcm_open(&This->stream->pcm_handle, alsa_name, alsa_get_direction(dataflow), SND_PCM_NONBLOCK);
if(err < 0){
hr = alsa_open_device(alsa_name, dataflow, &This->stream->pcm_handle, &This->stream->hw_params);
if(FAILED(hr)){
HeapFree(GetProcessHeap(), 0, This->stream);
HeapFree(GetProcessHeap(), 0, This);
WARN("Unable to open PCM \"%s\": %d (%s)\n", alsa_name, err, snd_strerror(err));
switch(err){
case -EBUSY:
return AUDCLNT_E_DEVICE_IN_USE;
default:
return AUDCLNT_E_ENDPOINT_CREATE_FAILED;
}
}
This->stream->hw_params = HeapAlloc(GetProcessHeap(), 0,
snd_pcm_hw_params_sizeof());
if(!This->stream->hw_params){
snd_pcm_close(This->stream->pcm_handle);
HeapFree(GetProcessHeap(), 0, This->stream);
HeapFree(GetProcessHeap(), 0, This);
return E_OUTOFMEMORY;
return hr;
}
InitializeCriticalSection(&This->lock);