1003 lines
33 KiB
C++
1003 lines
33 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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The code included in this file is provided under the terms of the ISC license
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http://www.isc.org/downloads/software-support-policy/isc-license. Permission
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To use, copy, modify, and/or distribute this software for any purpose with or
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without fee is hereby granted provided that the above copyright notice and
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this permission notice appear in all copies.
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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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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bool AudioDeviceManager::AudioDeviceSetup::operator!= (const AudioDeviceManager::AudioDeviceSetup& other) const
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{
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return ! operator== (other);
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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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{
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callbackHandler.reset (new CallbackHandler (*this));
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}
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AudioDeviceManager::~AudioDeviceManager()
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{
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currentAudioDevice.reset();
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defaultMidiOutput.reset();
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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 (auto* t : types)
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addAudioDeviceType (t);
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types.clear (false);
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if (auto* 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 (false));
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addIfNotNull (list, AudioIODeviceType::createAudioIODeviceType_WASAPI (true));
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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_Bela());
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addIfNotNull (list, AudioIODeviceType::createAudioIODeviceType_Oboe());
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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.get());
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}
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}
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static bool deviceListContains (AudioIODeviceType* type, bool isInput, const String& name)
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{
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for (auto& deviceName : type->getDeviceNames (isInput))
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if (deviceName.trim().equalsIgnoreCase (name.trim()))
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return true;
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return false;
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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 xml,
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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 (xml != nullptr && xml->hasTagName ("DEVICESETUP"))
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return initialiseFromXML (*xml, selectDefaultDeviceOnFailure,
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preferredDefaultDeviceName, preferredSetupOptions);
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return initialiseDefault (preferredDefaultDeviceName, preferredSetupOptions);
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}
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String AudioDeviceManager::initialiseDefault (const String& preferredDefaultDeviceName,
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const AudioDeviceSetup* preferredSetupOptions)
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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 (auto* type : availableDeviceTypes)
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{
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for (auto& out : type->getDeviceNames (false))
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{
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if (out.matchesWildcard (preferredDefaultDeviceName, true))
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{
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setup.outputDeviceName = out;
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break;
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}
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}
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for (auto& in : type->getDeviceNames (true))
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{
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if (in.matchesWildcard (preferredDefaultDeviceName, true))
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{
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setup.inputDeviceName = in;
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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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String AudioDeviceManager::initialiseFromXML (const XmlElement& xml,
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bool selectDefaultDeviceOnFailure,
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const String& preferredDefaultDeviceName,
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const AudioDeviceSetup* preferredSetupOptions)
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{
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lastExplicitSettings.reset (new XmlElement (xml));
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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 (xml.getStringAttribute ("audioDeviceName").isNotEmpty())
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{
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setup.inputDeviceName = setup.outputDeviceName
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= xml.getStringAttribute ("audioDeviceName");
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}
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else
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{
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setup.inputDeviceName = xml.getStringAttribute ("audioInputDeviceName");
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setup.outputDeviceName = xml.getStringAttribute ("audioOutputDeviceName");
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}
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currentDeviceType = xml.getStringAttribute ("deviceType");
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if (findType (currentDeviceType) == nullptr)
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{
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if (auto* type = findType (setup.inputDeviceName, setup.outputDeviceName))
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currentDeviceType = type->getTypeName();
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else if (auto* firstType = availableDeviceTypes.getFirst())
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currentDeviceType = firstType->getTypeName();
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}
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setup.bufferSize = xml.getIntAttribute ("audioDeviceBufferSize", setup.bufferSize);
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setup.sampleRate = xml.getDoubleAttribute ("audioDeviceRate", setup.sampleRate);
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setup.inputChannels .parseString (xml.getStringAttribute ("audioDeviceInChans", "11"), 2);
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setup.outputChannels.parseString (xml.getStringAttribute ("audioDeviceOutChans", "11"), 2);
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setup.useDefaultInputChannels = ! xml.hasAttribute ("audioDeviceInChans");
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setup.useDefaultOutputChannels = ! xml.hasAttribute ("audioDeviceOutChans");
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error = setAudioDeviceSetup (setup, true);
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midiInsFromXml.clear();
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forEachXmlChildElementWithTagName (xml, c, "MIDIINPUT")
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midiInsFromXml.add (c->getStringAttribute ("name"));
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for (auto& m : MidiInput::getDevices())
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setMidiInputEnabled (m, midiInsFromXml.contains (m));
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if (error.isNotEmpty() && selectDefaultDeviceOnFailure)
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error = initialise (numInputChansNeeded, numOutputChansNeeded,
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nullptr, false, preferredDefaultDeviceName);
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setDefaultMidiOutput (xml.getStringAttribute ("defaultMidiOutput"));
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return error;
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}
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String AudioDeviceManager::initialiseWithDefaultDevices (int numInputChannelsNeeded,
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int numOutputChannelsNeeded)
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{
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lastExplicitSettings.reset();
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return initialise (numInputChannelsNeeded, numOutputChannelsNeeded,
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nullptr, false, {}, nullptr);
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}
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void AudioDeviceManager::insertDefaultDeviceNames (AudioDeviceSetup& setup) const
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{
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if (auto* 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 createCopyIfNotNull (lastExplicitSettings.get());
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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 (auto* type : availableDeviceTypes)
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type->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 (auto* type : availableDeviceTypes)
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if (type->getTypeName() == typeName)
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return type;
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return {};
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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 (auto* type : availableDeviceTypes)
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if ((inputName.isNotEmpty() && deviceListContains (type, true, inputName))
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|| (outputName.isNotEmpty() && deviceListContains (type, false, outputName)))
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return type;
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return {};
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}
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void AudioDeviceManager::getAudioDeviceSetup (AudioDeviceSetup& setup) const
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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.reset();
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currentSetup.inputDeviceName.clear();
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currentSetup.outputDeviceName.clear();
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}
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void AudioDeviceManager::setCurrentAudioDeviceType (const String& type, 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 (auto* type : availableDeviceTypes)
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if (type->getTypeName() == currentDeviceType)
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return type;
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return availableDeviceTypes.getFirst();
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}
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String AudioDeviceManager::setAudioDeviceSetup (const AudioDeviceSetup& newSetup,
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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 {};
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if (! (newSetup == currentSetup))
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sendChangeMessage();
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stopDevice();
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if (! newSetup.useDefaultInputChannels) numInputChansNeeded = newSetup.inputChannels.countNumberOfSetBits();
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if (! newSetup.useDefaultOutputChannels) numOutputChansNeeded = newSetup.outputChannels.countNumberOfSetBits();
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auto newInputDeviceName (numInputChansNeeded == 0 ? String() : newSetup.inputDeviceName);
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auto newOutputDeviceName (numOutputChansNeeded == 0 ? String() : newSetup.outputDeviceName);
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String error;
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auto* 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 {};
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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() && ! deviceListContains (type, false, newOutputDeviceName))
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return "No such device: " + newOutputDeviceName;
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if (newInputDeviceName.isNotEmpty() && ! deviceListContains (type, true, newInputDeviceName))
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return "No such device: " + newInputDeviceName;
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currentAudioDevice.reset (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.get());
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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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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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auto rates = currentAudioDevice->getAvailableSampleRates();
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if (rate > 0 && rates.contains (rate))
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return rate;
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rate = currentAudioDevice->getCurrentSampleRate();
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if (rate > 0 && rates.contains (rate))
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return rate;
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|
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double lowestAbove44 = 0.0;
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for (int i = rates.size(); --i >= 0;)
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{
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auto sr = rates[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;
|
|
|
|
return rates[0];
|
|
}
|
|
|
|
int AudioDeviceManager::chooseBestBufferSize (int bufferSize) const
|
|
{
|
|
jassert (currentAudioDevice != nullptr);
|
|
|
|
if (bufferSize > 0 && currentAudioDevice->getAvailableBufferSizes().contains (bufferSize))
|
|
return bufferSize;
|
|
|
|
return currentAudioDevice->getDefaultBufferSize();
|
|
}
|
|
|
|
void AudioDeviceManager::stopDevice()
|
|
{
|
|
if (currentAudioDevice != nullptr)
|
|
currentAudioDevice->stop();
|
|
|
|
testSound.reset();
|
|
}
|
|
|
|
void AudioDeviceManager::closeAudioDevice()
|
|
{
|
|
stopDevice();
|
|
currentAudioDevice.reset();
|
|
cpuUsageMs = 0;
|
|
}
|
|
|
|
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.reset (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.get());
|
|
|
|
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);
|
|
|
|
inputLevelGetter->updateLevel (inputChannelData, numInputChannels, numSamples);
|
|
outputLevelGetter->updateLevel (const_cast<const float**> (outputChannelData), numOutputChannels, numSamples);
|
|
|
|
if (callbacks.size() > 0)
|
|
{
|
|
auto callbackStartTime = Time::getMillisecondCounterHiRes();
|
|
|
|
tempBuffer.setSize (jmax (1, numOutputChannels), jmax (1, numSamples), false, false, true);
|
|
|
|
callbacks.getUnchecked(0)->audioDeviceIOCallback (inputChannelData, numInputChannels,
|
|
outputChannelData, numOutputChannels, numSamples);
|
|
|
|
auto** tempChans = tempBuffer.getArrayOfWritePointers();
|
|
|
|
for (int i = callbacks.size(); --i > 0;)
|
|
{
|
|
callbacks.getUnchecked(i)->audioDeviceIOCallback (inputChannelData, numInputChannels,
|
|
tempChans, numOutputChannels, numSamples);
|
|
|
|
for (int chan = 0; chan < numOutputChannels; ++chan)
|
|
{
|
|
if (auto* src = tempChans [chan])
|
|
if (auto* dst = outputChannelData [chan])
|
|
for (int j = 0; j < numSamples; ++j)
|
|
dst[j] += src[j];
|
|
}
|
|
}
|
|
|
|
auto msTaken = Time::getMillisecondCounterHiRes() - callbackStartTime;
|
|
const double filterAmount = 0.2;
|
|
cpuUsageMs += filterAmount * (msTaken - cpuUsageMs);
|
|
|
|
if (msTaken > msPerBlock)
|
|
++xruns;
|
|
}
|
|
else
|
|
{
|
|
for (int i = 0; i < numOutputChannels; ++i)
|
|
zeromem (outputChannelData[i], sizeof (float) * (size_t) numSamples);
|
|
}
|
|
|
|
if (testSound != nullptr)
|
|
{
|
|
auto numSamps = jmin (numSamples, testSound->getNumSamples() - testSoundPosition);
|
|
auto* src = testSound->getReadPointer (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.reset();
|
|
}
|
|
}
|
|
|
|
void AudioDeviceManager::audioDeviceAboutToStartInt (AudioIODevice* const device)
|
|
{
|
|
cpuUsageMs = 0;
|
|
xruns = 0;
|
|
|
|
auto sampleRate = device->getCurrentSampleRate();
|
|
auto blockSize = device->getCurrentBufferSizeSamples();
|
|
|
|
if (sampleRate > 0.0 && blockSize > 0)
|
|
{
|
|
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;
|
|
xruns = 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)
|
|
{
|
|
auto index = MidiInput::getDevices().indexOf (name);
|
|
|
|
if (index >= 0)
|
|
{
|
|
if (auto* midiIn = MidiInput::openDevice (index, callbackHandler.get()))
|
|
{
|
|
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 (auto* mi : enabledMidiInputs)
|
|
if (mi->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);
|
|
|
|
MidiCallbackInfo mc;
|
|
mc.deviceName = name;
|
|
mc.callback = callbackToAdd;
|
|
midiCallbacks.add (mc);
|
|
}
|
|
}
|
|
|
|
void AudioDeviceManager::removeMidiInputCallback (const String& name, MidiInputCallback* callbackToRemove)
|
|
{
|
|
for (int i = midiCallbacks.size(); --i >= 0;)
|
|
{
|
|
auto& mc = midiCallbacks.getReference(i);
|
|
|
|
if (mc.callback == callbackToRemove && mc.deviceName == name)
|
|
{
|
|
const ScopedLock sl (midiCallbackLock);
|
|
midiCallbacks.remove (i);
|
|
}
|
|
}
|
|
}
|
|
|
|
void AudioDeviceManager::handleIncomingMidiMessageInt (MidiInput* source, const MidiMessage& message)
|
|
{
|
|
if (! message.isActiveSense())
|
|
{
|
|
const ScopedLock sl (midiCallbackLock);
|
|
|
|
for (auto& mc : midiCallbacks)
|
|
if (mc.deviceName.isEmpty() || mc.deviceName == source->getName())
|
|
mc.callback->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.reset();
|
|
defaultMidiOutputName = deviceName;
|
|
|
|
if (deviceName.isNotEmpty())
|
|
defaultMidiOutput.reset (MidiOutput::openDevice (MidiOutput::getDevices().indexOf (deviceName)));
|
|
|
|
if (currentAudioDevice != nullptr)
|
|
for (auto* c : oldCallbacks)
|
|
c->audioDeviceAboutToStart (currentAudioDevice.get());
|
|
|
|
{
|
|
const ScopedLock sl (audioCallbackLock);
|
|
oldCallbacks.swapWith (callbacks);
|
|
}
|
|
|
|
updateXml();
|
|
sendChangeMessage();
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
AudioDeviceManager::LevelMeter::LevelMeter() noexcept : level() {}
|
|
|
|
void AudioDeviceManager::LevelMeter::updateLevel (const float* const* channelData, int numChannels, int numSamples) noexcept
|
|
{
|
|
if (getReferenceCount() <= 1)
|
|
return;
|
|
|
|
auto localLevel = level.get();
|
|
|
|
if (numChannels > 0)
|
|
{
|
|
for (int j = 0; j < numSamples; ++j)
|
|
{
|
|
float s = 0;
|
|
|
|
for (int i = 0; i < numChannels; ++i)
|
|
s += std::abs (channelData[i][j]);
|
|
|
|
s /= (float) numChannels;
|
|
|
|
const float decayFactor = 0.99992f;
|
|
|
|
if (s > localLevel)
|
|
localLevel = s;
|
|
else if (localLevel > 0.001f)
|
|
localLevel *= decayFactor;
|
|
else
|
|
localLevel = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
localLevel = 0;
|
|
}
|
|
|
|
level = localLevel;
|
|
}
|
|
|
|
double AudioDeviceManager::LevelMeter::getCurrentLevel() const noexcept
|
|
{
|
|
jassert (getReferenceCount() > 1);
|
|
return level.get();
|
|
}
|
|
|
|
void AudioDeviceManager::playTestSound()
|
|
{
|
|
{ // cunningly nested to swap, unlock and delete in that order.
|
|
std::unique_ptr<AudioBuffer<float>> oldSound;
|
|
|
|
{
|
|
const ScopedLock sl (audioCallbackLock);
|
|
std::swap (oldSound, testSound);
|
|
}
|
|
}
|
|
|
|
testSoundPosition = 0;
|
|
|
|
if (currentAudioDevice != nullptr)
|
|
{
|
|
auto sampleRate = currentAudioDevice->getCurrentSampleRate();
|
|
auto soundLength = (int) sampleRate;
|
|
|
|
double frequency = 440.0;
|
|
float amplitude = 0.5f;
|
|
|
|
auto phasePerSample = MathConstants<double>::twoPi / (sampleRate / frequency);
|
|
|
|
auto* newSound = new AudioBuffer<float> (1, soundLength);
|
|
|
|
for (int i = 0; i < soundLength; ++i)
|
|
newSound->setSample (0, 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.reset (newSound);
|
|
}
|
|
}
|
|
|
|
int AudioDeviceManager::getXRunCount() const noexcept
|
|
{
|
|
auto deviceXRuns = (currentAudioDevice != nullptr ? currentAudioDevice->getXRunCount() : -1);
|
|
return jmax (0, deviceXRuns) + xruns;
|
|
}
|
|
|
|
} // namespace juce
|