envelope.h

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#pragma once
 
#include "processor.h"
#include "utils.h"
 
namespace vital {
 
    class Envelope : public Processor {
    public:
        enum {
            kDelay,
            kAttack,
            kAttackPower,
            kHold,
            kDecay,
            kDecayPower,
            kSustain,
            kRelease,
            kReleasePower,
            kTrigger,
            kNumInputs
        };
 
        enum ProcessorOutput {
            kValue,
            kPhase,
            kNumOutputs
        };
 
        Envelope();
 
        virtual ~Envelope() { }
 
        virtual Processor* clone() const override { return new Envelope(*this); }
 
        virtual void process(int num_samples) override;
 
    private:
        void processControlRate(int num_samples);
 
        void processAudioRate(int num_samples);
 
        poly_float processSection(poly_float* audio_out, int from, int to,
                                  poly_float power, poly_float delta_power,
                                  poly_float position, poly_float delta_position,
                                  poly_float start, poly_float end, poly_float delta_end);
 
        poly_float current_value_;   
 
        poly_float position_;        
        poly_float value_;           
        poly_float poly_state_;      
        poly_float start_value_;     
 
        poly_float attack_power_;    
        poly_float decay_power_;     
        poly_float release_power_;   
        poly_float sustain_;         
 
        JUCE_LEAK_DETECTOR(Envelope)
    };
} // namespace vital