Fix line endings and some cleanup

Source/SynthVoice.h

@@ -0,0 +1,97 @@
+#pragma once
+#include <JuceHeader.h>
+#include <functional>                 // <-- for std::function used by WaveShaper
+#include "NeuralSharedParams.h"
+#include "BlepOsc.h"
+
+//==============================================================================
+// A single polyBLEP oscillator voice with per-voice ADSR, filter ADSR,
+// flanger (delayline), simple delay, chorus, reverb, distortion, EQ, master.
+class NeuralSynthVoice : public juce::MPESynthesiserVoice
+{
+public:
+    explicit NeuralSynthVoice (NeuralSharedParams& sharedParams);
+
+    // JUCE voice API
+    void prepare (const juce::dsp::ProcessSpec& spec);
+    void renderNextBlock (juce::AudioBuffer<float>& outputBuffer,
+                          int startSample, int numSamples) override;
+
+    void noteStarted() override;
+    void noteStopped (bool allowTailOff) override;
+    void notePitchbendChanged() override;
+
+    void notePressureChanged() override {}
+    void noteTimbreChanged()   override {}
+    void noteKeyStateChanged() override {}
+
+    // Called from the processor when the GUI waveform param changes
+    void changeWaveform (int wf) { setWaveform (wf); }
+
+private:
+    void setWaveform (int waveformType);
+
+    //=== Processing chain (without oscillator) ===============================
+    using DelayLine = juce::dsp::DelayLine<float,
+                        juce::dsp::DelayLineInterpolationTypes::Linear>;
+    using IIR        = juce::dsp::IIR::Filter<float>;
+    using Gain       = juce::dsp::Gain<float>;
+    using WaveShaper = juce::dsp::WaveShaper<float, std::function<float(float)>>; // <-- fix
+    using Chorus     = juce::dsp::Chorus<float>;
+    using Reverb     = juce::dsp::Reverb;
+    using Limiter    = juce::dsp::Limiter<float>;
+
+    enum ChainIndex
+    {
+        flangerIndex = 0,
+        delayIndex,
+        chorusIndex,
+        reverbIndex,
+        distortionPreGain,
+        distortionIndex,
+        distortionPostLPF,
+        eqLowIndex,
+        eqMidIndex,
+        eqHighIndex,
+        masterIndex,
+        limiterIndex
+    };
+
+    using Chain = juce::dsp::ProcessorChain<
+        DelayLine,        // flanger
+        DelayLine,        // simple delay
+        Chorus,           // chorus
+        Reverb,           // reverb
+        Gain,             // distortion pre-gain (drive)
+        WaveShaper,       // distortion waveshaper
+        IIR,              // tone / post-EQ for distortion
+        IIR,              // EQ low
+        IIR,              // EQ mid
+        IIR,              // EQ high
+        Gain,             // master gain
+        Limiter           // safety limiter
+    >;
+
+private:
+    NeuralSharedParams& shared;
+
+    juce::dsp::ProcessSpec spec {};
+
+    // ==== Oscillator (polyBLEP) ============================================
+    BlepOsc osc;
+    std::atomic<int> pendingWaveform {-1};   // set by changeWaveform()
+
+    // ==== Envelopes & Filter ===============================================
+    juce::ADSR adsr;
+    juce::ADSR filterAdsr;
+    juce::dsp::StateVariableTPTFilter<float> svf;
+
+    // ==== Chain (FX, EQ, master, limiter) ==================================
+    Chain chain;
+
+    // ==== Scratch buffer (properly allocated) ===============================
+    juce::AudioBuffer<float>          tempBuffer;
+    juce::dsp::AudioBlock<float>      tempBlock;
+
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (NeuralSynthVoice)
+};