Initial Gelyk EQ plugin

Source/PluginProcessor.h

@@ -0,0 +1,59 @@
+#pragma once
+
+#include <JuceHeader.h>
+#include "EqualizerDSP.h"
+
+namespace gelyk
+{
+
+class GelykEQAudioProcessor final : public juce::AudioProcessor
+{
+public:
+    GelykEQAudioProcessor();
+    ~GelykEQAudioProcessor() override = default;
+
+    void prepareToPlay(double sampleRate, int samplesPerBlock) override;
+    void releaseResources() override;
+    void processBlock(juce::AudioBuffer<float>&, juce::MidiBuffer&) override;
+
+    juce::AudioProcessorEditor* createEditor() override;
+    bool hasEditor() const override { return true; }
+
+    const juce::String getName() const override { return "Gelyk EQ"; }
+    bool acceptsMidi() const override { return false; }
+    bool producesMidi() const override { return false; }
+    double getTailLengthSeconds() const override { return 0.0; }
+
+    int getNumPrograms() override { return 1; }
+    int getCurrentProgram() override { return 0; }
+    void setCurrentProgram(int) override {}
+    const juce::String getProgramName(int) override { return {}; }
+    void changeProgramName(int, const juce::String&) override {}
+
+    void getStateInformation(juce::MemoryBlock&) override;
+    void setStateInformation(const void*, int) override;
+
+    juce::AudioProcessorValueTreeState& getAPVTS() { return apvts; }
+
+    // Exposed for the editor / analyser.
+    SpectrumAnalyser& getAnalyser() { return analyser; }
+
+    // Returns human-readable Git build info.
+    const juce::String& getGitInfo() const { return gitInfo; }
+
+private:
+    juce::AudioProcessorValueTreeState apvts;
+
+    static constexpr int numBands = 5;
+    FilterBand bands[numBands];
+    double currentSampleRate = 44100.0;
+
+    SpectrumAnalyser analyser;
+
+    juce::String buildVersion;
+    juce::String gitInfo;
+
+    void rebuildCoefficients();
+};
+
+} // namespace gelyk