horizont/Source/PluginProcessor.h

#pragma once

#include <JuceHeader.h>

#include <atomic>

#include "Presets.h"
#include "HorizontEngine.h"

class HorizontAudioProcessor : public juce::AudioProcessor
{
public:
    HorizontAudioProcessor();
    ~HorizontAudioProcessor() override;

    void prepareToPlay (double sampleRate, int samplesPerBlock) override;
    void releaseResources() override;

    bool isBusesLayoutSupported (const BusesLayout& layouts) const override;

    void processBlock (juce::AudioBuffer<float>&, juce::MidiBuffer&) override;

    juce::AudioProcessorEditor* createEditor() override;
    bool hasEditor() const override;

    const juce::String getName() const override;
    bool acceptsMidi() const override;
    bool producesMidi() const override;
    double getTailLengthSeconds() const override;

    int getNumPrograms() override;
    int getCurrentProgram() override;
    void setCurrentProgram (int index) override;
    const juce::String getProgramName (int index) override;
    void changeProgramName (int index, const juce::String& newName) override;

    void getStateInformation (juce::MemoryBlock& destData) override;
    void setStateInformation (const void* data, int sizeInBytes) override;

    juce::AudioProcessorValueTreeState::ParameterLayout createParameterLayout();

    void applyPreset (const Preset& preset);
    const std::vector<Preset>& getPresets() const noexcept { return presets; }

    void pushWetSamples (const float* data, int numToWrite);
    int readWetSamples (float* dest, int numToRead);

    void appendDrySamples (const float* data, int numToWrite);
    int copyRecentDrySamples (float* dest, int numToRead);

    juce::AudioProcessorValueTreeState apvts;

private:
    void updateParameters();

    HorizontEngine engine;
    std::vector<Preset> presets;
    int currentProgram = 0;

    juce::AbstractFifo wetFifo { 2048 };
    juce::AudioBuffer<float> wetRing { 1, 2048 };
    std::vector<float> wetScratch;

    std::vector<float> dryScratch;
    static constexpr int dryRingSize = 4096;
    std::vector<float> dryRingLive = std::vector<float> (dryRingSize, 0.0f);
    std::atomic<size_t> dryWritePos { 0 };
    std::atomic<size_t> dryTotalWritten { 0 };

    std::atomic<float>* lowCutParam = nullptr;
    std::atomic<float>* highCutParam = nullptr;
    std::atomic<float>* decayParam = nullptr;
    std::atomic<float>* sizeParam = nullptr;
    std::atomic<float>* diffusionParam = nullptr;
    std::atomic<float>* brightnessParam = nullptr;
    std::atomic<float>* feedbackParam = nullptr;
    std::atomic<float>* pitchParam = nullptr;
    std::atomic<float>* dryWetParam = nullptr;

    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (HorizontAudioProcessor)
};