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Windows: Added ComSmartPtr::getInterface() and used it in a few places to simplify some COM code

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This commit is contained in:
ed 2020-09-07 16:01:48 +01:00
parent 99b3d85fcc
commit 54164fac3f
4 changed files with 76 additions and 90 deletions
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19
modules/juce_audio_devices/native/juce_win32_WASAPI.cpp
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@ -362,9 +362,8 @@ String getDeviceID (IMMDevice* device)
static EDataFlow getDataFlow (const ComSmartPtr<IMMDevice>& device)
{
EDataFlow flow = eRender;
ComSmartPtr<IMMEndpoint> endPoint;
if (check (device.QueryInterface (endPoint)))
(void) check (endPoint->GetDataFlow (&flow));
if (auto endpoint = device.getInterface<IMMEndpoint>())
(void) check (endpoint->GetDataFlow (&flow));
return flow;
}
@ -622,22 +621,12 @@ private:
return true;
}
static ComSmartPtr<IAudioClient3> getClientAsVersion3 (ComSmartPtr<IAudioClient>& clientVersion1)
{
ComSmartPtr<IAudioClient3> newClient;
if (clientVersion1 != nullptr)
clientVersion1.QueryInterface (__uuidof (IAudioClient3), newClient);
return newClient;
}
//==============================================================================
void querySupportedBufferSizes (WAVEFORMATEXTENSIBLE format, ComSmartPtr<IAudioClient>& audioClient)
{
if (isLowLatencyMode (deviceMode))
{
if (auto audioClient3 = getClientAsVersion3 (audioClient))
if (auto audioClient3 = audioClient.getInterface<IAudioClient3>())
{
UINT32 defaultPeriod = 0, fundamentalPeriod = 0, minPeriod = 0, maxPeriod = 0;
@ -793,7 +782,7 @@ private:
bool initialiseLowLatencyClient (int bufferSizeSamples, WAVEFORMATEXTENSIBLE format)
{
if (auto audioClient3 = getClientAsVersion3 (client))
if (auto audioClient3 = client.getInterface<IAudioClient3>())
return check (audioClient3->InitializeSharedAudioStream (getStreamFlags(),
bufferSizeSamples,
(WAVEFORMATEX*) &format,