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Update the device update fields after initializing the MMDevApi device

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This commit is contained in:
Chris Robinson
2011-05-19 15:55:27 -07:00
parent b838d123f8
commit 555ccce4ee
1 changed files with 21 additions and 1 deletions
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Alc/mmdevapi.c
+21 -1
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@@ -245,6 +245,8 @@ static ALCboolean MMDevApiResetPlayback(ALCdevice *device)
MMDevApiData *data = device->ExtraData;
WAVEFORMATEXTENSIBLE OutputType;
WAVEFORMATEX *wfx = NULL;
REFERENCE_TIME def_per;
UINT32 buffer_len;
HRESULT hr;
hr = IAudioClient_GetMixFormat(data->client, &wfx);
@@ -458,10 +460,28 @@ static ALCboolean MMDevApiResetPlayback(ALCdevice *device)
return ALC_FALSE;
}
hr = IAudioClient_GetDevicePeriod(data->client, &def_per, NULL);
if(SUCCEEDED(hr))
hr = IAudioClient_GetBufferSize(data->client, &buffer_len);
if(FAILED(hr))
{
AL_PRINT("Failed to get audio buffer info: 0x%08lx\n", hr);
return ALC_FALSE;
}
device->NumUpdates = (ALuint)((REFERENCE_TIME)buffer_len * 10000000 /
device->Frequency / def_per);
if(device->NumUpdates <= 1)
{
device->NumUpdates = 1;
AL_PRINT("Audio client returned default_period > buffer_len/2; expect break up\n");
}
device->UpdateSize = buffer_len / device->NumUpdates;
hr = IAudioClient_Start(data->client);
if(FAILED(hr))
{
AL_PRINT("Failed to start audio client\n");
AL_PRINT("Failed to start audio client: 0x%08lx\n", hr);
return ALC_FALSE;
}