File oscillatorbank.h¶

File List > DaisySP > Source > Synthesis > oscillatorbank.h
Source Code¶

/*
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_OSCILLATORBANK_H
#define DSY_OSCILLATORBANK_H

#include <stdint.h>
#ifdef __cplusplus

namespace daisysp
{
class OscillatorBank
{
  public:
    OscillatorBank() {}
    ~OscillatorBank() {}

    void Init(float sample_rate);

    float Process();

    void SetFreq(float freq);

    void SetAmplitudes(const float* amplitudes);

    void SetSingleAmp(float amp, int idx);

    void SetGain(float gain);

  private:
    // Oscillator state.
    float phase_;
    float next_sample_;
    int   segment_;
    float gain_;
    float registration_[7];
    float unshifted_registration_[7];

    float frequency_;
    float saw_8_gain_;
    float saw_4_gain_;
    float saw_2_gain_;
    float saw_1_gain_;

    float sample_rate_;
    bool  recalc_, recalc_gain_;

    bool cmp(float a, float b) { return fabsf(a - b) > .0000001; }
};
} // namespace daisysp
#endif
#endif