xybrid/xybrid/nodelib/instrumentcore.h

103 lines
2.6 KiB
C++

#pragma once
#include <memory>
#include <functional>
#include <unordered_map>
#include "nodelib/basics.h"
#include "data/node.h"
namespace Xybrid::Data {
class CommandPort;
class AudioPort;
}
namespace Xybrid::NodeLib {
/*!
* \class InstrumentCore
*
* Helper class to form the core of an instrument node.
*
* Not mandatory by any means, but handles all the "standard" commands for you.
*/
class InstrumentCore {
double time;
double smpTime;
public:
class Note {
friend class InstrumentCore;
void* intern = nullptr;
public:
uint16_t id;
double note; // floating point to allow smooth pitch bends
double time = 0;
double volume = 1.0;
double pan = 0.0;
ADSR adsr;
double adsrTime = 0;
uint8_t adsrPhase = 0;
std::array<double, 5> scratch{0.0};
Note() = default;
Note(uint16_t id);
double ampMult() const;
};
class Tween {
friend class InstrumentCore;
public:
uint16_t noteId;
int16_t ticksLeft = -1;
uint8_t flags = 0;
double timeStart = 0.0;
double timeEnd = 0.0;
double valStart = 0.0;
double valEnd = 0.0;
double* op;
Tween(Note&, double*, double val, double time, int16_t ticks = -1);
void startTick(Note&, double tickTime);
void process(Note&);
};
std::unordered_map<uint16_t, Note> activeNotes;
std::unordered_multimap<uint16_t, Tween> activeTweens;
std::function<void(Note&, Data::AudioPort*)> processNote;
std::function<void(Note&)> onNoteOn;
std::function<void(Note&)> onNoteLegato;
std::function<void(Note&, bool)> onNoteOff;
std::function<void(Note&)> onDeleteNote;
InstrumentCore() = default;
inline double globalTime() const { return time; }
inline double sampleTime() const { return smpTime; }
void reset();
void process(Data::Node*);
void process(Data::CommandPort*, Data::AudioPort* = nullptr);
void advanceNote(Note&);
void deleteNote(Note&);
/// Removes tweens matching the specified note and target.
void removeTweens(Note&, double*);
/// Removes all tweens matching the specified note.
void removeTweens(Note&);
Tween& startTween(Note&, double*, double val, double time, int16_t ticks = -1);
};
}