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//See associated .cpp file for copyright and other info
#ifndef __mdaPiano__
#define __mdaPiano__
#pragma GCC system_header
#include <lv2synth.hpp>
#include <string.h>
#define NPARAMS 12 //number of parameters
#define NPROGS 8 //number of programs
#define NOUTS 2 //number of outputs
#define NVOICES 32 //max polyphony
#define SUSTAIN 128
#define SILENCE 0.0001f //voice choking
#define WAVELEN 586348 //wave data bytes
class mdaPianoProgram
{
friend class mdaPiano;
public:
mdaPianoProgram();
~mdaPianoProgram() {}
private:
float param[NPARAMS];
char name[24];
};
struct VOICE //voice state
{
uint32_t delta; //sample playback
uint32_t frac;
uint32_t pos;
uint32_t end;
uint32_t loop;
float env; //envelope
float dec;
float f0; //first-order LPF
float f1;
float ff;
float outl;
float outr;
uint32_t note; //remember what note triggered this
};
struct KGRP //keygroup
{
uint32_t root; //MIDI root note
uint32_t high; //highest note
uint32_t pos;
uint32_t end;
uint32_t loop;
};
class mdaPiano : public LV2::Synth<mdaPianoVoice, mdaPiano> {
public:
mdaPiano(double rate);
~mdaPiano();
virtual void process(float **inputs, float **outputs, uint32_t sampleframes);
virtual void processReplacing(float **inputs, float **outputs, uint32_t sampleframes);
virtual uint32_t processEvents(VstEvents* events);
virtual void setParameter(uint32_t index, float value);
virtual void resume();
private:
void update(); //my parameter update
void noteOn(uint32_t note, uint32_t velocity);
float param[NPARAMS];
float Fs, iFs;
#define EVENTBUFFER 120
#define EVENTS_DONE 99999999
uint32_t notes[EVENTBUFFER + 8]; //list of delta|note|velocity for current block
///global internal variables
KGRP kgrp[16];
VOICE voice[NVOICES];
uint32_t activevoices, poly, cpos;
short *waves;
uint32_t cmax;
float *comb, cdep, width, trim;
uint32_t size, sustain;
float tune, fine, random, stretch;
float muff, muffvel, sizevel, velsens, volume;
};
#endif
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