SM-26 synthesizer: initial implementation

Source/PluginProcessor.h

@@ -0,0 +1,52 @@
+#pragma once
+
+#include <JuceHeader.h>
+#include "SynthEngine.h"
+#include "Presets.h"
+
+class SM26AudioProcessor : public juce::AudioProcessor,
+                            public juce::AudioProcessorValueTreeState::Listener
+{
+public:
+    SM26AudioProcessor();
+    ~SM26AudioProcessor() override;
+
+    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 "SM-26"; }
+
+    bool acceptsMidi() const override  { return true; }
+    bool producesMidi() const override { return false; }
+    bool isMidiEffect() 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& destData) override;
+    void setStateInformation (const void* data, int sizeInBytes) override;
+
+    void setKnob (int knob, float value01);
+    void adjustParam (int paramId, float delta01);
+
+    juce::AudioProcessorValueTreeState apvts;
+    sm26::SynthEngine engine;
+
+    void setPresetByIndex (int i);
+    int  presetCount() const { return sm26::PresetStore::count(); }
+
+private:
+    void parameterChanged (const juce::String& parameterID, float newValue) override;
+    void applyPresetKnobs();
+
+    std::atomic<bool> paramsReady{false};
+
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (SM26AudioProcessor)
+};