portemento, adsr

Source/shifter_voice.h

@@ -0,0 +1,46 @@
+/*
+  ==============================================================================
+
+	shifter_voice.h
+	Created: 25 Oct 2025 2:09:42pm
+	Author:  mickl
+
+  ==============================================================================
+*/
+
+#pragma once
+
+#include "adsr.h"
+#include "port.h"
+#include "math.h"
+#include <juce_core/juce_core.h>
+#include <stdlib.h>
+
+class ShifterVoice {
+public:
+	ShifterVoice() {}
+	~ShifterVoice() {}
+	void Init(float sample_rate);
+	bool IsActive();
+	void Trigger(int midi_note);
+	void Release();
+	void Process();
+	float CurrentAmplitude();
+	float CurrentPeriod();
+	bool PeriodOverflow();
+	void SetPortamentoTime(float time);
+	void SetAdsrTimes(float attack, float decay, float release);
+	float GetPanning(int channel) const;
+	int GetMidiNote() const { return current_midi; }
+
+private:
+	Port portamento_;
+	Adsr amplitude_envelope_;
+	bool onoff_;
+	bool overflow_;
+	int current_midi;
+	float current_period_;
+	float current_amplitude;
+	float period_counter;
+	float panning;
+};