MIDIReceiver.h

#ifndef __PancakeHouse__MIDIReceiver__
#define __PancakeHouse__MIDIReceiver__

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wextra-tokens"
#include "IPlug_include_in_plug_hdr.h"
#pragma clang diagnostic pop

#include "IMidiQueue.h"


#include "GallantSignal.h"
using Gallant::Signal2;


class MIDIReceiver {
private:
	IMidiQueue mMidiQueue;
	static const int keyCount = 128;
	int mNumKeys; //how many keys are being played at the moment (via midi)
	bool mKeyStatus[keyCount]; // arry of on/off for each key (index is not number)
	int mOffset;
	inline double noteNumberToFrequency(int noteNumber) { return 440.0 * pow(2.0, (noteNumber - 69.0) / 12.0); }



public:
	MIDIReceiver():
	mNumKeys(0),
	mOffset(0) {
		for (int i = 0; i < keyCount; i++) {
			mKeyStatus[i] = false;
		}
	};

	//Returns true if the key with a given index is currently pressed
	inline bool getKeyStatus(int keyIndex) const { return mKeyStatus[keyIndex]; }

	// Returns number of keys currently pressed
	inline int getNumKeys() const { return mNumKeys; }

	// Returns the last pressed note number

	void advance();
	void onMessageReceived(IMidiMsg* midiMessage);
	inline void Flush(int nFrames) { mMidiQueue.Flush(nFrames); mOffset = 0; }
	inline void Resize(int blockSize) { mMidiQueue.Resize(blockSize); }

	Signal2<int, int> noteOn;
	Signal2<int, int> noteOff;
};

#endif /* defined(__PancakeHouse__MIDIReceiver__) */