paulxstretch/deps/juce/modules/juce_audio_utils/gui/juce_AudioAppComponent.cpp

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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2020 - Raw Material Software Limited
JUCE is an open source library subject to commercial or open-source
licensing.
By using JUCE, you agree to the terms of both the JUCE 6 End-User License
Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
End User License Agreement: www.juce.com/juce-6-licence
Privacy Policy: www.juce.com/juce-privacy-policy
Or: You may also use this code under the terms of the GPL v3 (see
www.gnu.org/licenses).
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
DISCLAIMED.
==============================================================================
*/
namespace juce
{
AudioAppComponent::AudioAppComponent()
: deviceManager (defaultDeviceManager),
usingCustomDeviceManager (false)
{
}
AudioAppComponent::AudioAppComponent (AudioDeviceManager& adm)
: deviceManager (adm),
usingCustomDeviceManager (true)
{
}
AudioAppComponent::~AudioAppComponent()
{
// If you hit this then your derived class must call shutdown audio in
// destructor!
jassert (audioSourcePlayer.getCurrentSource() == nullptr);
}
void AudioAppComponent::setAudioChannels (int numInputChannels, int numOutputChannels, const XmlElement* const xml)
{
String audioError;
if (usingCustomDeviceManager && xml == nullptr)
{
auto setup = deviceManager.getAudioDeviceSetup();
if (setup.inputChannels.countNumberOfSetBits() != numInputChannels
|| setup.outputChannels.countNumberOfSetBits() != numOutputChannels)
{
setup.inputChannels.clear();
setup.outputChannels.clear();
setup.inputChannels.setRange (0, numInputChannels, true);
setup.outputChannels.setRange (0, numOutputChannels, true);
audioError = deviceManager.setAudioDeviceSetup (setup, false);
}
}
else
{
audioError = deviceManager.initialise (numInputChannels, numOutputChannels, xml, true);
}
jassert (audioError.isEmpty());
deviceManager.addAudioCallback (&audioSourcePlayer);
audioSourcePlayer.setSource (this);
}
void AudioAppComponent::shutdownAudio()
{
audioSourcePlayer.setSource (nullptr);
deviceManager.removeAudioCallback (&audioSourcePlayer);
// other audio callbacks may still be using the device
if (! usingCustomDeviceManager)
deviceManager.closeAudioDevice();
}
} // namespace juce