analogbassdrum.h

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/*
Copyright (c) 2020 Electrosmith, Corp, Emilie Gillet
 
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
 
#pragma once
#ifndef DSY_ANALOG_BD_H
#define DSY_ANALOG_BD_H
 
#include <stdint.h>
#ifdef __cplusplus
 
#include "Synthesis/oscillator.h"
#include "Filters/svf.h"
 
namespace daisysp
{
class AnalogBassDrum
{
  public:
    AnalogBassDrum() {}
    ~AnalogBassDrum() {}
 
    void Init(float sample_rate);
 
    float Process(bool trigger = false);
 
    void Trig();
 
    void SetSustain(bool sustain);
 
    void SetAccent(float accent);
 
    void SetFreq(float f0);
 
    void SetTone(float tone);
 
    void SetDecay(float decay);
 
    void SetAttackFmAmount(float attack_fm_amount);
 
    void SetSelfFmAmount(float self_fm_amount);
 
  private:
    inline float Diode(float x);
 
    float sample_rate_;
 
    float accent_, f0_, tone_, decay_;
    float attack_fm_amount_, self_fm_amount_;
 
    bool trig_, sustain_;
 
    int   pulse_remaining_samples_;
    int   fm_pulse_remaining_samples_;
    float pulse_;
    float pulse_height_;
    float pulse_lp_;
    float fm_pulse_lp_;
    float retrig_pulse_;
    float lp_out_;
    float tone_lp_;
    float sustain_gain_;
 
    Svf resonator_;
 
    //for use in sin + cos osc. in sustain mode
    float phase_;
};
} // namespace daisysp
#endif
#endif