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winealsa.drv: Small capture fixes. 

Deadlock, off-by-one and forgetting to declare that we want MMAP
access, so accelerated mode wouldn't work at all but fail silently.
This commit is contained in:
Maarten Lankhorst 2009-09-22 13:49:27 +02:00 committed by Alexandre Julliard
parent 6dd6074f60
commit b0e45368d7
1 changed files with 6 additions and 2 deletions
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8
dlls/winealsa.drv/dscapture.c
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@ -134,7 +134,8 @@ static void CALLBACK Capture_Notify(UINT timerID, UINT msg, DWORD_PTR dwUser, DW
PIDSCDRIVERBUFFER iface = (PIDSCDRIVERBUFFER)This;
/* **** */
EnterCriticalSection(&This->pcm_crst);
/* Don't deadlock since there is a critical section can be held by the timer api itself while running this code */
if (!TryEnterCriticalSection(&This->pcm_crst)) return;
IDsDriverBuffer_GetPosition(iface, &playpos, NULL);
last_playpos = This->notify->playpos;
@ -555,7 +556,7 @@ static HRESULT WINAPI IDsCaptureDriverBufferImpl_Lock(PIDSCDRIVERBUFFER iface, L
if (ppvAudio1)
*ppvAudio1 = (LPBYTE)This->presented_buffer + dwWritePosition;
if (dwWritePosition + dwWriteLen < This->mmap_buflen_bytes) {
if (dwWritePosition + dwWriteLen <= This->mmap_buflen_bytes) {
if (pdwLen1)
*pdwLen1 = dwWriteLen;
if (ppvAudio2)
@ -631,6 +632,9 @@ static HRESULT WINAPI IDsCaptureDriverBufferImpl_SetFormat(PIDSCDRIVERBUFFER ifa
/* Set some defaults */
snd_pcm_hw_params_any(pcm, hw_params);
err = snd_pcm_hw_params_set_access (pcm, hw_params, SND_PCM_ACCESS_MMAP_INTERLEAVED);
if (err < 0) goto err;
err = snd_pcm_hw_params_set_channels(pcm, hw_params, pwfx->nChannels);
if (err < 0) { WARN("Could not set channels to %d\n", pwfx->nChannels); goto err; }