PluginProcessor.cpp

#include "PluginProcessor.h"
#include "PluginEditor.h"
extern "C" {
#include "doomgeneric/doomgeneric/d_iwad.h"
#include "doomgeneric/doomgeneric/d_main.h"
}

//==============================================================================
AudioPluginAudioProcessor::AudioPluginAudioProcessor()
    : AudioProcessor(BusesProperties()
#if !JucePlugin_IsMidiEffect
#if !JucePlugin_IsSynth
                         .withInput("Input", juce::AudioChannelSet::stereo(), true)
#endif
                         .withOutput("Output", juce::AudioChannelSet::stereo(), true)
#endif
    ) {

    for (auto& key : m_key_atomics)
        key.store(false, std::memory_order_relaxed);
}

AudioPluginAudioProcessor::~AudioPluginAudioProcessor() { }

//==============================================================================
const juce::String AudioPluginAudioProcessor::getName() const {
    return JucePlugin_Name;
}

bool AudioPluginAudioProcessor::acceptsMidi() const {
#if JucePlugin_WantsMidiInput
    return true;
#else
    return false;
#endif
}

bool AudioPluginAudioProcessor::producesMidi() const {
#if JucePlugin_ProducesMidiOutput
    return true;
#else
    return false;
#endif
}

bool AudioPluginAudioProcessor::isMidiEffect() const {
#if JucePlugin_IsMidiEffect
    return true;
#else
    return false;
#endif
}

double AudioPluginAudioProcessor::getTailLengthSeconds() const {
    return 0.0;
}

int AudioPluginAudioProcessor::getNumPrograms() {
    return 1; // NB: some hosts don't cope very well if you tell them there are 0 programs,
              // so this should be at least 1, even if you're not really implementing programs.
}

int AudioPluginAudioProcessor::getCurrentProgram() {
    return 0;
}

void AudioPluginAudioProcessor::setCurrentProgram(int index) {
    juce::ignoreUnused(index);
}

const juce::String AudioPluginAudioProcessor::getProgramName(int index) {
    juce::ignoreUnused(index);
    return {};
}

void AudioPluginAudioProcessor::changeProgramName(int index, const juce::String& newName) {
    juce::ignoreUnused(index, newName);
}

//==============================================================================
void AudioPluginAudioProcessor::prepareToPlay(double sampleRate, int samplesPerBlock) {
    // Use this method as the place to do any pre-playback
    // initialisation that you need..
    juce::ignoreUnused(sampleRate, samplesPerBlock);
}

void AudioPluginAudioProcessor::releaseResources() {
    // When playback stops, you can use this as an opportunity to free up any
    // spare memory, etc.
}

bool AudioPluginAudioProcessor::isBusesLayoutSupported(const BusesLayout& layouts) const {
#if JucePlugin_IsMidiEffect
    juce::ignoreUnused(layouts);
    return true;
#else
    // This is the place where you check if the layout is supported.
    // In this template code we only support mono or stereo.
    // Some plugin hosts, such as certain GarageBand versions, will only
    // load plugins that support stereo bus layouts.
    if (layouts.getMainOutputChannelSet() != juce::AudioChannelSet::mono()
        && layouts.getMainOutputChannelSet() != juce::AudioChannelSet::stereo())
        return false;

        // This checks if the input layout matches the output layout
#if !JucePlugin_IsSynth
    if (layouts.getMainOutputChannelSet() != layouts.getMainInputChannelSet())
        return false;
#endif

    return true;
#endif
}

void AudioPluginAudioProcessor::processBlock(juce::AudioBuffer<float>& buffer,
                                             juce::MidiBuffer& midiMessages) {
    juce::ignoreUnused(midiMessages);

    juce::ScopedNoDenormals noDenormals;
    auto totalNumInputChannels = getTotalNumInputChannels();
    auto totalNumOutputChannels = getTotalNumOutputChannels();

    for (const juce::MidiMessageMetadata metadata : midiMessages) {
        const auto& message = metadata.getMessage();

        if (message.isNoteOnOrOff() && m_midi_to_key.count(message.getNoteNumber())) {
            DBG(metadata.getMessage().getDescription());
            const auto index = m_midi_to_key[message.getNoteNumber()];

            m_key_atomics[index].store(message.isNoteOn(), std::memory_order_relaxed);
        }
    }
}

//==============================================================================
bool AudioPluginAudioProcessor::hasEditor() const {
    return true; // (change this to false if you choose to not supply an editor)
}

juce::AudioProcessorEditor* AudioPluginAudioProcessor::createEditor() {
    return new DoomWindow(*this);
}

//==============================================================================
void AudioPluginAudioProcessor::getStateInformation(juce::MemoryBlock& destData) {
    // You should use this method to store your parameters in the memory block.
    // You could do that either as raw data, or use the XML or ValueTree classes
    // as intermediaries to make it easy to save and load complex data.
    juce::ignoreUnused(destData);
}

void AudioPluginAudioProcessor::setStateInformation(const void* data, int sizeInBytes) {
    // You should use this method to restore your parameters from this memory block,
    // whose contents will have been created by the getStateInformation() call.
    juce::ignoreUnused(data, sizeInBytes);
}

//==============================================================================
// This creates new instances of the plugin..
juce::AudioProcessor* JUCE_CALLTYPE createPluginFilter() {
    return new AudioPluginAudioProcessor();
}