chassis/plugin/chassis.hpp

/*
   Chassis polysynth framework

   Copyright 2024 Gordon JC Pearce <gordonjcp@gjcp.net>

   Permission to use, copy, modify, and/or distribute this software for any
   purpose with or without fee is hereby granted, provided that the above
   copyright notice and this permission notice appear in all copies.

   THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
   SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
   OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
   CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/

#ifndef _CHASSIS_HPP
#define _CHASSIS_HPP

#define NUM_VOICES 8

#include "DistrhoPlugin.hpp"
#include "voice.hpp"

START_NAMESPACE_DISTRHO

// uint16_t attack_table[128];
// uint16_t decay_table[128];

class Chassis : public Plugin {
   public:
    enum Parameters {
        paramLFORate,
        paramLFODelay,

        paramVCORange,
        paramVCOLFO,
        paramPWMLFO,
        paramPWMMode,
        paramSaw,
        paramSqr,
        paramSub,
        paramNoise,

        paramHPF,

        paramVCFFreq,
        paramVCFReso,
        paramVCFMode,
        paramVCFEnv,
        paramVCFLFO,
        paramVCFKey,

        paramEnvGate,
        paramVCALevel,

        paramAttack,
        paramDecay,
        paramSustain,
        paramRelease,

        parameterCount
    };

    Chassis();

   protected:
    const char *getLabel() const override { return "chassis"; }
    const char *getDescription() const override {
        return "MIDIVerb emulation, a tribute to Keith Barr";
    }
    const char *getMaker() const override { return "Gordonjcp"; }
    const char *getLicense() const override { return "ISC"; }
    uint32_t getVersion() const override { return d_version(1, 0, 0); }
    int64_t getUniqueId() const override { return d_cconst('P', 'f', 'a', 'u'); }

    // Initialisation
    void initAudioPort(bool input, uint32_t index, AudioPort &port) override;
    void initParameter(uint32_t index, Parameter &parameter) override;

    void setParameterValue(uint32_t index, float value) override;
    float getParameterValue(uint32_t index) const override;

    // void initProgramName(uint32_t index, String &programName) override;
    //  void loadProgram(uint32_t index) override;

    // Processing
    void activate() override;
    void deactivate() override;
    void run(const float **, float **outputs, uint32_t frames, const MidiEvent *midiEvents, uint32_t midiEventCount) override;

    void noteOn(uint8_t note);
    void noteOff(uint8_t note);

   private:
    void doMidi(const MidiEvent *ev, uint32_t count, uint32_t timelimit);
    double sampleRate;
    uint32_t lastEvent;
    // Voice voice[NUM_VOICES];
    uint8_t vPtr;

    Synth s;

    DISTRHO_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(Chassis);
};

END_NAMESPACE_DISTRHO

#endif  // _CHASSIS_HPP