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968 lines
33 KiB
968 lines
33 KiB
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2013 - Raw Material Software Ltd.
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Permission is granted to use this software under the terms of either:
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a) the GPL v2 (or any later version)
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b) the Affero GPL v3
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Details of these licenses can be found at: www.gnu.org/licenses
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.juce.com for more information.
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==============================================================================
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*/
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AudioDeviceManager::AudioDeviceSetup::AudioDeviceSetup()
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: sampleRate (0),
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bufferSize (0),
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useDefaultInputChannels (true),
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useDefaultOutputChannels (true)
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{
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}
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bool AudioDeviceManager::AudioDeviceSetup::operator== (const AudioDeviceManager::AudioDeviceSetup& other) const
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{
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return outputDeviceName == other.outputDeviceName
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&& inputDeviceName == other.inputDeviceName
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&& sampleRate == other.sampleRate
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&& bufferSize == other.bufferSize
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&& inputChannels == other.inputChannels
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&& useDefaultInputChannels == other.useDefaultInputChannels
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&& outputChannels == other.outputChannels
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&& useDefaultOutputChannels == other.useDefaultOutputChannels;
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}
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//==============================================================================
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class AudioDeviceManager::CallbackHandler : public AudioIODeviceCallback,
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public MidiInputCallback,
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public AudioIODeviceType::Listener
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{
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public:
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CallbackHandler (AudioDeviceManager& adm) noexcept : owner (adm) {}
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private:
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void audioDeviceIOCallback (const float** ins, int numIns, float** outs, int numOuts, int numSamples) override
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{
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owner.audioDeviceIOCallbackInt (ins, numIns, outs, numOuts, numSamples);
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}
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void audioDeviceAboutToStart (AudioIODevice* device) override
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{
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owner.audioDeviceAboutToStartInt (device);
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}
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void audioDeviceStopped() override
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{
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owner.audioDeviceStoppedInt();
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}
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void audioDeviceError (const String& message) override
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{
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owner.audioDeviceErrorInt (message);
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}
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void handleIncomingMidiMessage (MidiInput* source, const MidiMessage& message) override
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{
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owner.handleIncomingMidiMessageInt (source, message);
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}
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void audioDeviceListChanged() override
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{
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owner.audioDeviceListChanged();
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}
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AudioDeviceManager& owner;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (CallbackHandler)
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};
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//==============================================================================
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AudioDeviceManager::AudioDeviceManager()
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: numInputChansNeeded (0),
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numOutputChansNeeded (2),
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listNeedsScanning (true),
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useInputNames (false),
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inputLevel (0),
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testSoundPosition (0),
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tempBuffer (2, 2),
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cpuUsageMs (0),
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timeToCpuScale (0)
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{
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callbackHandler = new CallbackHandler (*this);
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}
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AudioDeviceManager::~AudioDeviceManager()
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{
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currentAudioDevice = nullptr;
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defaultMidiOutput = nullptr;
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}
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//==============================================================================
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void AudioDeviceManager::createDeviceTypesIfNeeded()
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{
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if (availableDeviceTypes.size() == 0)
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{
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OwnedArray <AudioIODeviceType> types;
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createAudioDeviceTypes (types);
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for (int i = 0; i < types.size(); ++i)
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addAudioDeviceType (types.getUnchecked(i));
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types.clear (false);
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if (AudioIODeviceType* first = availableDeviceTypes.getFirst())
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currentDeviceType = first->getTypeName();
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}
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}
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const OwnedArray <AudioIODeviceType>& AudioDeviceManager::getAvailableDeviceTypes()
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{
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scanDevicesIfNeeded();
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return availableDeviceTypes;
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}
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void AudioDeviceManager::audioDeviceListChanged()
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{
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if (currentAudioDevice != nullptr)
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{
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currentSetup.sampleRate = currentAudioDevice->getCurrentSampleRate();
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currentSetup.bufferSize = currentAudioDevice->getCurrentBufferSizeSamples();
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currentSetup.inputChannels = currentAudioDevice->getActiveInputChannels();
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currentSetup.outputChannels = currentAudioDevice->getActiveOutputChannels();
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}
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sendChangeMessage();
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}
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//==============================================================================
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static void addIfNotNull (OwnedArray <AudioIODeviceType>& list, AudioIODeviceType* const device)
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{
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if (device != nullptr)
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list.add (device);
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}
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void AudioDeviceManager::createAudioDeviceTypes (OwnedArray <AudioIODeviceType>& list)
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{
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addIfNotNull (list, AudioIODeviceType::createAudioIODeviceType_WASAPI());
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addIfNotNull (list, AudioIODeviceType::createAudioIODeviceType_DirectSound());
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addIfNotNull (list, AudioIODeviceType::createAudioIODeviceType_ASIO());
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addIfNotNull (list, AudioIODeviceType::createAudioIODeviceType_CoreAudio());
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addIfNotNull (list, AudioIODeviceType::createAudioIODeviceType_iOSAudio());
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addIfNotNull (list, AudioIODeviceType::createAudioIODeviceType_ALSA());
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addIfNotNull (list, AudioIODeviceType::createAudioIODeviceType_JACK());
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addIfNotNull (list, AudioIODeviceType::createAudioIODeviceType_OpenSLES());
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addIfNotNull (list, AudioIODeviceType::createAudioIODeviceType_Android());
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}
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void AudioDeviceManager::addAudioDeviceType (AudioIODeviceType* newDeviceType)
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{
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if (newDeviceType != nullptr)
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{
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jassert (lastDeviceTypeConfigs.size() == availableDeviceTypes.size());
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availableDeviceTypes.add (newDeviceType);
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lastDeviceTypeConfigs.add (new AudioDeviceSetup());
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newDeviceType->addListener (callbackHandler);
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}
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}
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//==============================================================================
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String AudioDeviceManager::initialise (const int numInputChannelsNeeded,
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const int numOutputChannelsNeeded,
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const XmlElement* const e,
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const bool selectDefaultDeviceOnFailure,
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const String& preferredDefaultDeviceName,
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const AudioDeviceSetup* preferredSetupOptions)
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{
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scanDevicesIfNeeded();
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numInputChansNeeded = numInputChannelsNeeded;
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numOutputChansNeeded = numOutputChannelsNeeded;
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if (e != nullptr && e->hasTagName ("DEVICESETUP"))
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{
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lastExplicitSettings = new XmlElement (*e);
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String error;
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AudioDeviceSetup setup;
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if (preferredSetupOptions != nullptr)
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setup = *preferredSetupOptions;
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if (e->getStringAttribute ("audioDeviceName").isNotEmpty())
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{
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setup.inputDeviceName = setup.outputDeviceName
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= e->getStringAttribute ("audioDeviceName");
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}
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else
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{
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setup.inputDeviceName = e->getStringAttribute ("audioInputDeviceName");
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setup.outputDeviceName = e->getStringAttribute ("audioOutputDeviceName");
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}
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currentDeviceType = e->getStringAttribute ("deviceType");
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if (findType (currentDeviceType) == nullptr)
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{
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if (AudioIODeviceType* const type = findType (setup.inputDeviceName, setup.outputDeviceName))
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currentDeviceType = type->getTypeName();
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else if (availableDeviceTypes.size() > 0)
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currentDeviceType = availableDeviceTypes.getUnchecked(0)->getTypeName();
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}
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setup.bufferSize = e->getIntAttribute ("audioDeviceBufferSize");
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setup.sampleRate = e->getDoubleAttribute ("audioDeviceRate");
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setup.inputChannels .parseString (e->getStringAttribute ("audioDeviceInChans", "11"), 2);
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setup.outputChannels.parseString (e->getStringAttribute ("audioDeviceOutChans", "11"), 2);
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setup.useDefaultInputChannels = ! e->hasAttribute ("audioDeviceInChans");
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setup.useDefaultOutputChannels = ! e->hasAttribute ("audioDeviceOutChans");
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error = setAudioDeviceSetup (setup, true);
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midiInsFromXml.clear();
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forEachXmlChildElementWithTagName (*e, c, "MIDIINPUT")
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midiInsFromXml.add (c->getStringAttribute ("name"));
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const StringArray allMidiIns (MidiInput::getDevices());
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for (int i = allMidiIns.size(); --i >= 0;)
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setMidiInputEnabled (allMidiIns[i], midiInsFromXml.contains (allMidiIns[i]));
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if (error.isNotEmpty() && selectDefaultDeviceOnFailure)
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error = initialise (numInputChannelsNeeded, numOutputChannelsNeeded, 0,
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false, preferredDefaultDeviceName);
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setDefaultMidiOutput (e->getStringAttribute ("defaultMidiOutput"));
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return error;
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}
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else
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{
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AudioDeviceSetup setup;
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if (preferredSetupOptions != nullptr)
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{
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setup = *preferredSetupOptions;
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}
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else if (preferredDefaultDeviceName.isNotEmpty())
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{
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for (int j = availableDeviceTypes.size(); --j >= 0;)
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{
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AudioIODeviceType* const type = availableDeviceTypes.getUnchecked(j);
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const StringArray outs (type->getDeviceNames (false));
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for (int i = 0; i < outs.size(); ++i)
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{
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if (outs[i].matchesWildcard (preferredDefaultDeviceName, true))
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{
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setup.outputDeviceName = outs[i];
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break;
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}
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}
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const StringArray ins (type->getDeviceNames (true));
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for (int i = 0; i < ins.size(); ++i)
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{
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if (ins[i].matchesWildcard (preferredDefaultDeviceName, true))
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{
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setup.inputDeviceName = ins[i];
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break;
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}
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}
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}
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}
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insertDefaultDeviceNames (setup);
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return setAudioDeviceSetup (setup, false);
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}
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}
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void AudioDeviceManager::insertDefaultDeviceNames (AudioDeviceSetup& setup) const
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{
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if (AudioIODeviceType* type = getCurrentDeviceTypeObject())
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{
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if (setup.outputDeviceName.isEmpty())
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setup.outputDeviceName = type->getDeviceNames (false) [type->getDefaultDeviceIndex (false)];
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if (setup.inputDeviceName.isEmpty())
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setup.inputDeviceName = type->getDeviceNames (true) [type->getDefaultDeviceIndex (true)];
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}
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}
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XmlElement* AudioDeviceManager::createStateXml() const
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{
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return lastExplicitSettings.createCopy();
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}
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//==============================================================================
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void AudioDeviceManager::scanDevicesIfNeeded()
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{
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if (listNeedsScanning)
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{
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listNeedsScanning = false;
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createDeviceTypesIfNeeded();
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for (int i = availableDeviceTypes.size(); --i >= 0;)
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availableDeviceTypes.getUnchecked(i)->scanForDevices();
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}
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}
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AudioIODeviceType* AudioDeviceManager::findType (const String& typeName)
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{
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scanDevicesIfNeeded();
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for (int i = availableDeviceTypes.size(); --i >= 0;)
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if (availableDeviceTypes.getUnchecked(i)->getTypeName() == typeName)
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return availableDeviceTypes.getUnchecked(i);
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return nullptr;
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}
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AudioIODeviceType* AudioDeviceManager::findType (const String& inputName, const String& outputName)
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{
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scanDevicesIfNeeded();
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for (int i = availableDeviceTypes.size(); --i >= 0;)
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{
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AudioIODeviceType* const type = availableDeviceTypes.getUnchecked(i);
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if ((inputName.isNotEmpty() && type->getDeviceNames (true).contains (inputName, true))
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|| (outputName.isNotEmpty() && type->getDeviceNames (false).contains (outputName, true)))
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{
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return type;
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}
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}
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return nullptr;
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}
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void AudioDeviceManager::getAudioDeviceSetup (AudioDeviceSetup& setup)
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{
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setup = currentSetup;
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}
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void AudioDeviceManager::deleteCurrentDevice()
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{
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currentAudioDevice = nullptr;
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currentSetup.inputDeviceName = String::empty;
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currentSetup.outputDeviceName = String::empty;
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}
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void AudioDeviceManager::setCurrentAudioDeviceType (const String& type,
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const bool treatAsChosenDevice)
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{
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for (int i = 0; i < availableDeviceTypes.size(); ++i)
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{
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if (availableDeviceTypes.getUnchecked(i)->getTypeName() == type
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&& currentDeviceType != type)
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{
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if (currentAudioDevice != nullptr)
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{
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closeAudioDevice();
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Thread::sleep (1500); // allow a moment for OS devices to sort themselves out, to help
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// avoid things like DirectSound/ASIO clashes
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}
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currentDeviceType = type;
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AudioDeviceSetup s (*lastDeviceTypeConfigs.getUnchecked(i));
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insertDefaultDeviceNames (s);
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setAudioDeviceSetup (s, treatAsChosenDevice);
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sendChangeMessage();
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break;
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}
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}
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}
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AudioIODeviceType* AudioDeviceManager::getCurrentDeviceTypeObject() const
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{
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for (int i = 0; i < availableDeviceTypes.size(); ++i)
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if (availableDeviceTypes.getUnchecked(i)->getTypeName() == currentDeviceType)
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return availableDeviceTypes.getUnchecked(i);
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return availableDeviceTypes[0];
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}
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String AudioDeviceManager::setAudioDeviceSetup (const AudioDeviceSetup& newSetup,
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const bool treatAsChosenDevice)
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{
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jassert (&newSetup != ¤tSetup); // this will have no effect
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if (newSetup == currentSetup && currentAudioDevice != nullptr)
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return String::empty;
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if (! (newSetup == currentSetup))
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sendChangeMessage();
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stopDevice();
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const String newInputDeviceName (numInputChansNeeded == 0 ? String::empty : newSetup.inputDeviceName);
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const String newOutputDeviceName (numOutputChansNeeded == 0 ? String::empty : newSetup.outputDeviceName);
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String error;
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AudioIODeviceType* type = getCurrentDeviceTypeObject();
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if (type == nullptr || (newInputDeviceName.isEmpty() && newOutputDeviceName.isEmpty()))
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{
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deleteCurrentDevice();
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if (treatAsChosenDevice)
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updateXml();
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return String::empty;
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}
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if (currentSetup.inputDeviceName != newInputDeviceName
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|| currentSetup.outputDeviceName != newOutputDeviceName
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|| currentAudioDevice == nullptr)
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{
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deleteCurrentDevice();
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scanDevicesIfNeeded();
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if (newOutputDeviceName.isNotEmpty()
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&& ! type->getDeviceNames (false).contains (newOutputDeviceName))
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{
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return "No such device: " + newOutputDeviceName;
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}
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if (newInputDeviceName.isNotEmpty()
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&& ! type->getDeviceNames (true).contains (newInputDeviceName))
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{
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return "No such device: " + newInputDeviceName;
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}
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currentAudioDevice = type->createDevice (newOutputDeviceName, newInputDeviceName);
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if (currentAudioDevice == nullptr)
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error = "Can't open the audio device!\n\n"
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"This may be because another application is currently using the same device - "
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"if so, you should close any other applications and try again!";
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else
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error = currentAudioDevice->getLastError();
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if (error.isNotEmpty())
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{
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deleteCurrentDevice();
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return error;
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}
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if (newSetup.useDefaultInputChannels)
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{
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inputChannels.clear();
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inputChannels.setRange (0, numInputChansNeeded, true);
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}
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if (newSetup.useDefaultOutputChannels)
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{
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outputChannels.clear();
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outputChannels.setRange (0, numOutputChansNeeded, true);
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}
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if (newInputDeviceName.isEmpty()) inputChannels.clear();
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if (newOutputDeviceName.isEmpty()) outputChannels.clear();
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}
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if (! newSetup.useDefaultInputChannels) inputChannels = newSetup.inputChannels;
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if (! newSetup.useDefaultOutputChannels) outputChannels = newSetup.outputChannels;
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currentSetup = newSetup;
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currentSetup.sampleRate = chooseBestSampleRate (newSetup.sampleRate);
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currentSetup.bufferSize = chooseBestBufferSize (newSetup.bufferSize);
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error = currentAudioDevice->open (inputChannels,
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outputChannels,
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currentSetup.sampleRate,
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currentSetup.bufferSize);
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if (error.isEmpty())
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{
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currentDeviceType = currentAudioDevice->getTypeName();
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currentAudioDevice->start (callbackHandler);
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currentSetup.sampleRate = currentAudioDevice->getCurrentSampleRate();
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currentSetup.bufferSize = currentAudioDevice->getCurrentBufferSizeSamples();
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currentSetup.inputChannels = currentAudioDevice->getActiveInputChannels();
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currentSetup.outputChannels = currentAudioDevice->getActiveOutputChannels();
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|
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for (int i = 0; i < availableDeviceTypes.size(); ++i)
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if (availableDeviceTypes.getUnchecked (i)->getTypeName() == currentDeviceType)
|
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*(lastDeviceTypeConfigs.getUnchecked (i)) = currentSetup;
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if (treatAsChosenDevice)
|
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updateXml();
|
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}
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else
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{
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deleteCurrentDevice();
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}
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return error;
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}
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|
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double AudioDeviceManager::chooseBestSampleRate (double rate) const
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{
|
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jassert (currentAudioDevice != nullptr);
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|
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if (rate > 0)
|
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for (int i = currentAudioDevice->getNumSampleRates(); --i >= 0;)
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if (currentAudioDevice->getSampleRate (i) == rate)
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return rate;
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|
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double lowestAbove44 = 0.0;
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|
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for (int i = currentAudioDevice->getNumSampleRates(); --i >= 0;)
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{
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const double sr = currentAudioDevice->getSampleRate (i);
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if (sr >= 44100.0 && (lowestAbove44 < 1.0 || sr < lowestAbove44))
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lowestAbove44 = sr;
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}
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if (lowestAbove44 > 0.0)
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return lowestAbove44;
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|
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return currentAudioDevice->getSampleRate (0);
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}
|
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|
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int AudioDeviceManager::chooseBestBufferSize (int bufferSize) const
|
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{
|
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jassert (currentAudioDevice != nullptr);
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|
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if (bufferSize > 0)
|
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for (int i = currentAudioDevice->getNumBufferSizesAvailable(); --i >= 0;)
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if (currentAudioDevice->getBufferSizeSamples(i) == bufferSize)
|
|
return bufferSize;
|
|
|
|
return currentAudioDevice->getDefaultBufferSize();
|
|
}
|
|
|
|
void AudioDeviceManager::stopDevice()
|
|
{
|
|
if (currentAudioDevice != nullptr)
|
|
currentAudioDevice->stop();
|
|
|
|
testSound = nullptr;
|
|
}
|
|
|
|
void AudioDeviceManager::closeAudioDevice()
|
|
{
|
|
stopDevice();
|
|
currentAudioDevice = nullptr;
|
|
}
|
|
|
|
void AudioDeviceManager::restartLastAudioDevice()
|
|
{
|
|
if (currentAudioDevice == nullptr)
|
|
{
|
|
if (currentSetup.inputDeviceName.isEmpty()
|
|
&& currentSetup.outputDeviceName.isEmpty())
|
|
{
|
|
// This method will only reload the last device that was running
|
|
// before closeAudioDevice() was called - you need to actually open
|
|
// one first, with setAudioDevice().
|
|
jassertfalse;
|
|
return;
|
|
}
|
|
|
|
AudioDeviceSetup s (currentSetup);
|
|
setAudioDeviceSetup (s, false);
|
|
}
|
|
}
|
|
|
|
void AudioDeviceManager::updateXml()
|
|
{
|
|
lastExplicitSettings = new XmlElement ("DEVICESETUP");
|
|
|
|
lastExplicitSettings->setAttribute ("deviceType", currentDeviceType);
|
|
lastExplicitSettings->setAttribute ("audioOutputDeviceName", currentSetup.outputDeviceName);
|
|
lastExplicitSettings->setAttribute ("audioInputDeviceName", currentSetup.inputDeviceName);
|
|
|
|
if (currentAudioDevice != nullptr)
|
|
{
|
|
lastExplicitSettings->setAttribute ("audioDeviceRate", currentAudioDevice->getCurrentSampleRate());
|
|
|
|
if (currentAudioDevice->getDefaultBufferSize() != currentAudioDevice->getCurrentBufferSizeSamples())
|
|
lastExplicitSettings->setAttribute ("audioDeviceBufferSize", currentAudioDevice->getCurrentBufferSizeSamples());
|
|
|
|
if (! currentSetup.useDefaultInputChannels)
|
|
lastExplicitSettings->setAttribute ("audioDeviceInChans", currentSetup.inputChannels.toString (2));
|
|
|
|
if (! currentSetup.useDefaultOutputChannels)
|
|
lastExplicitSettings->setAttribute ("audioDeviceOutChans", currentSetup.outputChannels.toString (2));
|
|
}
|
|
|
|
for (int i = 0; i < enabledMidiInputs.size(); ++i)
|
|
lastExplicitSettings->createNewChildElement ("MIDIINPUT")
|
|
->setAttribute ("name", enabledMidiInputs[i]->getName());
|
|
|
|
if (midiInsFromXml.size() > 0)
|
|
{
|
|
// Add any midi devices that have been enabled before, but which aren't currently
|
|
// open because the device has been disconnected.
|
|
const StringArray availableMidiDevices (MidiInput::getDevices());
|
|
|
|
for (int i = 0; i < midiInsFromXml.size(); ++i)
|
|
if (! availableMidiDevices.contains (midiInsFromXml[i], true))
|
|
lastExplicitSettings->createNewChildElement ("MIDIINPUT")
|
|
->setAttribute ("name", midiInsFromXml[i]);
|
|
}
|
|
|
|
if (defaultMidiOutputName.isNotEmpty())
|
|
lastExplicitSettings->setAttribute ("defaultMidiOutput", defaultMidiOutputName);
|
|
}
|
|
|
|
//==============================================================================
|
|
void AudioDeviceManager::addAudioCallback (AudioIODeviceCallback* newCallback)
|
|
{
|
|
{
|
|
const ScopedLock sl (audioCallbackLock);
|
|
if (callbacks.contains (newCallback))
|
|
return;
|
|
}
|
|
|
|
if (currentAudioDevice != nullptr && newCallback != nullptr)
|
|
newCallback->audioDeviceAboutToStart (currentAudioDevice);
|
|
|
|
const ScopedLock sl (audioCallbackLock);
|
|
callbacks.add (newCallback);
|
|
}
|
|
|
|
void AudioDeviceManager::removeAudioCallback (AudioIODeviceCallback* callbackToRemove)
|
|
{
|
|
if (callbackToRemove != nullptr)
|
|
{
|
|
bool needsDeinitialising = currentAudioDevice != nullptr;
|
|
|
|
{
|
|
const ScopedLock sl (audioCallbackLock);
|
|
|
|
needsDeinitialising = needsDeinitialising && callbacks.contains (callbackToRemove);
|
|
callbacks.removeFirstMatchingValue (callbackToRemove);
|
|
}
|
|
|
|
if (needsDeinitialising)
|
|
callbackToRemove->audioDeviceStopped();
|
|
}
|
|
}
|
|
|
|
void AudioDeviceManager::audioDeviceIOCallbackInt (const float** inputChannelData,
|
|
int numInputChannels,
|
|
float** outputChannelData,
|
|
int numOutputChannels,
|
|
int numSamples)
|
|
{
|
|
const ScopedLock sl (audioCallbackLock);
|
|
|
|
if (inputLevelMeasurementEnabledCount.get() > 0 && numInputChannels > 0)
|
|
{
|
|
for (int j = 0; j < numSamples; ++j)
|
|
{
|
|
float s = 0;
|
|
|
|
for (int i = 0; i < numInputChannels; ++i)
|
|
s += std::abs (inputChannelData[i][j]);
|
|
|
|
s /= numInputChannels;
|
|
|
|
const double decayFactor = 0.99992;
|
|
|
|
if (s > inputLevel)
|
|
inputLevel = s;
|
|
else if (inputLevel > 0.001f)
|
|
inputLevel *= decayFactor;
|
|
else
|
|
inputLevel = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
inputLevel = 0;
|
|
}
|
|
|
|
if (callbacks.size() > 0)
|
|
{
|
|
const double callbackStartTime = Time::getMillisecondCounterHiRes();
|
|
|
|
tempBuffer.setSize (jmax (1, numOutputChannels), jmax (1, numSamples), false, false, true);
|
|
|
|
callbacks.getUnchecked(0)->audioDeviceIOCallback (inputChannelData, numInputChannels,
|
|
outputChannelData, numOutputChannels, numSamples);
|
|
|
|
float** const tempChans = tempBuffer.getArrayOfChannels();
|
|
|
|
for (int i = callbacks.size(); --i > 0;)
|
|
{
|
|
callbacks.getUnchecked(i)->audioDeviceIOCallback (inputChannelData, numInputChannels,
|
|
tempChans, numOutputChannels, numSamples);
|
|
|
|
for (int chan = 0; chan < numOutputChannels; ++chan)
|
|
{
|
|
if (const float* const src = tempChans [chan])
|
|
if (float* const dst = outputChannelData [chan])
|
|
for (int j = 0; j < numSamples; ++j)
|
|
dst[j] += src[j];
|
|
}
|
|
}
|
|
|
|
const double msTaken = Time::getMillisecondCounterHiRes() - callbackStartTime;
|
|
const double filterAmount = 0.2;
|
|
cpuUsageMs += filterAmount * (msTaken - cpuUsageMs);
|
|
}
|
|
else
|
|
{
|
|
for (int i = 0; i < numOutputChannels; ++i)
|
|
zeromem (outputChannelData[i], sizeof (float) * (size_t) numSamples);
|
|
}
|
|
|
|
if (testSound != nullptr)
|
|
{
|
|
const int numSamps = jmin (numSamples, testSound->getNumSamples() - testSoundPosition);
|
|
const float* const src = testSound->getSampleData (0, testSoundPosition);
|
|
|
|
for (int i = 0; i < numOutputChannels; ++i)
|
|
for (int j = 0; j < numSamps; ++j)
|
|
outputChannelData [i][j] += src[j];
|
|
|
|
testSoundPosition += numSamps;
|
|
if (testSoundPosition >= testSound->getNumSamples())
|
|
testSound = nullptr;
|
|
}
|
|
}
|
|
|
|
void AudioDeviceManager::audioDeviceAboutToStartInt (AudioIODevice* const device)
|
|
{
|
|
cpuUsageMs = 0;
|
|
|
|
const double sampleRate = device->getCurrentSampleRate();
|
|
const int blockSize = device->getCurrentBufferSizeSamples();
|
|
|
|
if (sampleRate > 0.0 && blockSize > 0)
|
|
{
|
|
const double msPerBlock = 1000.0 * blockSize / sampleRate;
|
|
timeToCpuScale = (msPerBlock > 0.0) ? (1.0 / msPerBlock) : 0.0;
|
|
}
|
|
|
|
{
|
|
const ScopedLock sl (audioCallbackLock);
|
|
for (int i = callbacks.size(); --i >= 0;)
|
|
callbacks.getUnchecked(i)->audioDeviceAboutToStart (device);
|
|
}
|
|
|
|
sendChangeMessage();
|
|
}
|
|
|
|
void AudioDeviceManager::audioDeviceStoppedInt()
|
|
{
|
|
cpuUsageMs = 0;
|
|
timeToCpuScale = 0;
|
|
sendChangeMessage();
|
|
|
|
const ScopedLock sl (audioCallbackLock);
|
|
for (int i = callbacks.size(); --i >= 0;)
|
|
callbacks.getUnchecked(i)->audioDeviceStopped();
|
|
}
|
|
|
|
void AudioDeviceManager::audioDeviceErrorInt (const String& message)
|
|
{
|
|
const ScopedLock sl (audioCallbackLock);
|
|
for (int i = callbacks.size(); --i >= 0;)
|
|
callbacks.getUnchecked(i)->audioDeviceError (message);
|
|
}
|
|
|
|
double AudioDeviceManager::getCpuUsage() const
|
|
{
|
|
return jlimit (0.0, 1.0, timeToCpuScale * cpuUsageMs);
|
|
}
|
|
|
|
//==============================================================================
|
|
void AudioDeviceManager::setMidiInputEnabled (const String& name, const bool enabled)
|
|
{
|
|
if (enabled != isMidiInputEnabled (name))
|
|
{
|
|
if (enabled)
|
|
{
|
|
const int index = MidiInput::getDevices().indexOf (name);
|
|
|
|
if (index >= 0)
|
|
{
|
|
if (MidiInput* const midiIn = MidiInput::openDevice (index, callbackHandler))
|
|
{
|
|
enabledMidiInputs.add (midiIn);
|
|
midiIn->start();
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (int i = enabledMidiInputs.size(); --i >= 0;)
|
|
if (enabledMidiInputs[i]->getName() == name)
|
|
enabledMidiInputs.remove (i);
|
|
}
|
|
|
|
updateXml();
|
|
sendChangeMessage();
|
|
}
|
|
}
|
|
|
|
bool AudioDeviceManager::isMidiInputEnabled (const String& name) const
|
|
{
|
|
for (int i = enabledMidiInputs.size(); --i >= 0;)
|
|
if (enabledMidiInputs[i]->getName() == name)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
void AudioDeviceManager::addMidiInputCallback (const String& name, MidiInputCallback* callbackToAdd)
|
|
{
|
|
removeMidiInputCallback (name, callbackToAdd);
|
|
|
|
if (name.isEmpty() || isMidiInputEnabled (name))
|
|
{
|
|
const ScopedLock sl (midiCallbackLock);
|
|
midiCallbacks.add (callbackToAdd);
|
|
midiCallbackDevices.add (name);
|
|
}
|
|
}
|
|
|
|
void AudioDeviceManager::removeMidiInputCallback (const String& name, MidiInputCallback* callbackToRemove)
|
|
{
|
|
for (int i = midiCallbacks.size(); --i >= 0;)
|
|
{
|
|
if (midiCallbackDevices[i] == name && midiCallbacks.getUnchecked(i) == callbackToRemove)
|
|
{
|
|
const ScopedLock sl (midiCallbackLock);
|
|
midiCallbacks.remove (i);
|
|
midiCallbackDevices.remove (i);
|
|
}
|
|
}
|
|
}
|
|
|
|
void AudioDeviceManager::handleIncomingMidiMessageInt (MidiInput* source, const MidiMessage& message)
|
|
{
|
|
if (! message.isActiveSense())
|
|
{
|
|
const bool isDefaultSource = (source == nullptr || source == enabledMidiInputs.getFirst());
|
|
|
|
const ScopedLock sl (midiCallbackLock);
|
|
|
|
for (int i = midiCallbackDevices.size(); --i >= 0;)
|
|
{
|
|
const String name (midiCallbackDevices[i]);
|
|
|
|
if ((isDefaultSource && name.isEmpty()) || (name.isNotEmpty() && name == source->getName()))
|
|
midiCallbacks.getUnchecked(i)->handleIncomingMidiMessage (source, message);
|
|
}
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
void AudioDeviceManager::setDefaultMidiOutput (const String& deviceName)
|
|
{
|
|
if (defaultMidiOutputName != deviceName)
|
|
{
|
|
Array <AudioIODeviceCallback*> oldCallbacks;
|
|
|
|
{
|
|
const ScopedLock sl (audioCallbackLock);
|
|
oldCallbacks.swapWith (callbacks);
|
|
}
|
|
|
|
if (currentAudioDevice != nullptr)
|
|
for (int i = oldCallbacks.size(); --i >= 0;)
|
|
oldCallbacks.getUnchecked(i)->audioDeviceStopped();
|
|
|
|
defaultMidiOutput = nullptr;
|
|
defaultMidiOutputName = deviceName;
|
|
|
|
if (deviceName.isNotEmpty())
|
|
defaultMidiOutput = MidiOutput::openDevice (MidiOutput::getDevices().indexOf (deviceName));
|
|
|
|
if (currentAudioDevice != nullptr)
|
|
for (int i = oldCallbacks.size(); --i >= 0;)
|
|
oldCallbacks.getUnchecked(i)->audioDeviceAboutToStart (currentAudioDevice);
|
|
|
|
{
|
|
const ScopedLock sl (audioCallbackLock);
|
|
oldCallbacks.swapWith (callbacks);
|
|
}
|
|
|
|
updateXml();
|
|
sendChangeMessage();
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
void AudioDeviceManager::playTestSound()
|
|
{
|
|
{ // cunningly nested to swap, unlock and delete in that order.
|
|
ScopedPointer <AudioSampleBuffer> oldSound;
|
|
|
|
{
|
|
const ScopedLock sl (audioCallbackLock);
|
|
oldSound = testSound;
|
|
}
|
|
}
|
|
|
|
testSoundPosition = 0;
|
|
|
|
if (currentAudioDevice != nullptr)
|
|
{
|
|
const double sampleRate = currentAudioDevice->getCurrentSampleRate();
|
|
const int soundLength = (int) sampleRate;
|
|
|
|
AudioSampleBuffer* const newSound = new AudioSampleBuffer (1, soundLength);
|
|
float* samples = newSound->getSampleData (0);
|
|
|
|
const double frequency = 440.0;
|
|
const float amplitude = 0.5f;
|
|
|
|
const double phasePerSample = double_Pi * 2.0 / (sampleRate / frequency);
|
|
|
|
for (int i = 0; i < soundLength; ++i)
|
|
samples[i] = amplitude * (float) std::sin (i * phasePerSample);
|
|
|
|
newSound->applyGainRamp (0, 0, soundLength / 10, 0.0f, 1.0f);
|
|
newSound->applyGainRamp (0, soundLength - soundLength / 4, soundLength / 4, 1.0f, 0.0f);
|
|
|
|
const ScopedLock sl (audioCallbackLock);
|
|
testSound = newSound;
|
|
}
|
|
}
|
|
|
|
void AudioDeviceManager::enableInputLevelMeasurement (const bool enableMeasurement)
|
|
{
|
|
if (enableMeasurement)
|
|
++inputLevelMeasurementEnabledCount;
|
|
else
|
|
--inputLevelMeasurementEnabledCount;
|
|
|
|
inputLevel = 0;
|
|
}
|
|
|
|
double AudioDeviceManager::getCurrentInputLevel() const
|
|
{
|
|
jassert (inputLevelMeasurementEnabledCount.get() > 0); // you need to call enableInputLevelMeasurement() before using this!
|
|
return inputLevel;
|
|
}
|
|
|