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WASAPI: Use more early returns

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reuk 2025-06-02 15:03:55 +01:00
parent b20df8d713
commit 86e0248f79
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1 changed files with 82 additions and 81 deletions
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163
modules/juce_audio_devices/native/juce_WASAPI_windows.cpp
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@ -465,29 +465,26 @@ public:
client = createClient();
if (client != nullptr
&& tryInitialisingWithBufferSize (bufferSizeSamples))
{
sampleRateHasChanged = false;
shouldShutdown = false;
if (client == nullptr || ! tryInitialisingWithBufferSize (bufferSizeSamples))
return false;
channelMaps.clear();
sampleRateHasChanged = false;
shouldShutdown = false;
for (int i = 0; i <= channels.getHighestBit(); ++i)
if (channels[i])
channelMaps.add (i);
channelMaps.clear();
REFERENCE_TIME latency;
for (int i = 0; i <= channels.getHighestBit(); ++i)
if (channels[i])
channelMaps.add (i);
if (check (client->GetStreamLatency (&latency)))
latencySamples = refTimeToSamples (latency, sampleRate);
REFERENCE_TIME latency;
(void) check (client->GetBufferSize (&actualBufferSize));
createSessionEventCallback();
return check (client->SetEventHandle (clientEvent));
}
if (check (client->GetStreamLatency (&latency)))
latencySamples = refTimeToSamples (latency, sampleRate);
return false;
(void) check (client->GetBufferSize (&actualBufferSize));
createSessionEventCallback();
return check (client->SetEventHandle (clientEvent));
}
void closeClient()
@ -606,11 +603,11 @@ private:
client->GetService (__uuidof (IAudioSessionControl),
(void**) audioSessionControl.resetAndGetPointerAddress());
if (audioSessionControl != nullptr)
{
sessionEventCallback = becomeComSmartPtrOwner (new SessionEventCallback (*this));
audioSessionControl->RegisterAudioSessionNotification (sessionEventCallback);
}
if (audioSessionControl == nullptr)
return;
sessionEventCallback = becomeComSmartPtrOwner (new SessionEventCallback (*this));
audioSessionControl->RegisterAudioSessionNotification (sessionEventCallback);
}
void deleteSessionEventCallback()
@ -670,17 +667,17 @@ private:
lowLatencyBufferSizeMultiple = (int) fundamentalPeriod;
}
}
}
else
{
REFERENCE_TIME defaultPeriod, minPeriod;
if (! check (audioClient->GetDevicePeriod (&defaultPeriod, &minPeriod)))
return;
minBufferSize = refTimeToSamples (minPeriod, defaultSampleRate);
defaultBufferSize = refTimeToSamples (defaultPeriod, defaultSampleRate);
return;
}
REFERENCE_TIME defaultPeriod, minPeriod;
if (! check (audioClient->GetDevicePeriod (&defaultPeriod, &minPeriod)))
return;
minBufferSize = refTimeToSamples (minPeriod, defaultSampleRate);
defaultBufferSize = refTimeToSamples (defaultPeriod, defaultSampleRate);
}
void querySupportedSampleRates (WAVEFORMATEXTENSIBLE format, ComSmartPtr<IAudioClient>& audioClient)
@ -894,25 +891,25 @@ private:
bool tryInitialisingWithBufferSize (int bufferSizeSamples)
{
if (auto format = findSupportedFormat (client, numChannels, sampleRate))
{
auto isInitialised = isLowLatencyMode (deviceMode) ? initialiseLowLatencyClient (bufferSizeSamples, *format)
: initialiseStandardClient (bufferSizeSamples, *format);
auto format = findSupportedFormat (client, numChannels, sampleRate);
if (isInitialised)
{
actualNumChannels = format->Format.nChannels;
const bool isFloat = format->Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE && format->SubFormat == KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
bytesPerSample = format->Format.wBitsPerSample / 8;
bytesPerFrame = format->Format.nBlockAlign;
if (! format.has_value())
return false;
updateFormat (isFloat);
auto isInitialised = isLowLatencyMode (deviceMode) ? initialiseLowLatencyClient (bufferSizeSamples, *format)
: initialiseStandardClient (bufferSizeSamples, *format);
return true;
}
}
if (! isInitialised)
return false;
return false;
actualNumChannels = format->Format.nChannels;
const bool isFloat = format->Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE && format->SubFormat == KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
bytesPerSample = format->Format.wBitsPerSample / 8;
bytesPerFrame = format->Format.nBlockAlign;
updateFormat (isFloat);
return true;
}
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (WASAPIDeviceBase)
@ -1310,22 +1307,26 @@ public:
StringArray getOutputChannelNames() override
{
if (outputDevice == nullptr)
return {};
StringArray outChannels;
if (outputDevice != nullptr)
for (int i = 1; i <= outputDevice->maxNumChannels; ++i)
outChannels.add ("Output channel " + String (i));
for (int i = 1; i <= outputDevice->maxNumChannels; ++i)
outChannels.add ("Output channel " + String (i));
return outChannels;
}
StringArray getInputChannelNames() override
{
if (inputDevice == nullptr)
return {};
StringArray inChannels;
if (inputDevice != nullptr)
for (int i = 1; i <= inputDevice->maxNumChannels; ++i)
inChannels.add ("Input channel " + String (i));
for (int i = 1; i <= inputDevice->maxNumChannels; ++i)
inChannels.add ("Input channel " + String (i));
return inChannels;
}
@ -1456,37 +1457,37 @@ public:
void start (AudioIODeviceCallback* call) override
{
if (isOpen_ && call != nullptr && ! isStarted)
if (! isOpen_ || call == nullptr || isStarted)
return;
if (! isThreadRunning())
{
if (! isThreadRunning())
{
// something's gone wrong and the thread's stopped..
isOpen_ = false;
return;
}
call->audioDeviceAboutToStart (this);
const ScopedLock sl (startStopLock);
callback = call;
isStarted = true;
// something's gone wrong and the thread's stopped..
isOpen_ = false;
return;
}
call->audioDeviceAboutToStart (this);
const ScopedLock sl (startStopLock);
callback = call;
isStarted = true;
}
void stop() override
{
if (isStarted)
if (! isStarted)
return;
auto* callbackLocal = callback;
{
auto* callbackLocal = callback;
{
const ScopedLock sl (startStopLock);
isStarted = false;
}
if (callbackLocal != nullptr)
callbackLocal->audioDeviceStopped();
const ScopedLock sl (startStopLock);
isStarted = false;
}
if (callbackLocal != nullptr)
callbackLocal->audioDeviceStopped();
}
void setMMThreadPriority()
@ -1495,13 +1496,13 @@ public:
JUCE_LOAD_WINAPI_FUNCTION (dll, AvSetMmThreadCharacteristicsW, avSetMmThreadCharacteristics, HANDLE, (LPCWSTR, LPDWORD))
JUCE_LOAD_WINAPI_FUNCTION (dll, AvSetMmThreadPriority, avSetMmThreadPriority, HANDLE, (HANDLE, AVRT_PRIORITY))
if (avSetMmThreadCharacteristics != nullptr && avSetMmThreadPriority != nullptr)
{
DWORD dummy = 0;
if (avSetMmThreadCharacteristics == nullptr || avSetMmThreadPriority == nullptr)
return;
if (auto h = avSetMmThreadCharacteristics (L"Pro Audio", &dummy))
avSetMmThreadPriority (h, AVRT_PRIORITY_NORMAL);
}
DWORD dummy = 0;
if (auto h = avSetMmThreadCharacteristics (L"Pro Audio", &dummy))
avSetMmThreadPriority (h, AVRT_PRIORITY_NORMAL);
}
void run() override