/*

Copyright (C) 2016 Apple Inc. All Rights Reserved.

See LICENSE.txt for this sample’s licensing information

Abstract:

MIDI Processor AU

*/

#ifndef __AUMidiPassThru_h__

#define __AUMidiPassThru_h__

#include "AUMidiPassThruVersion.h"

#include <CoreMIDI/CoreMIDI.h>

#include "AUMIDIEffectBase.h"

#include "LockFreeFIFO.h"

#pragma mark - AUMidiPassThru

class AUMidiPassThru : public AUMIDIEffectBase

{

public:

    AUMidiPassThru(AudioUnit component);

    virtual ~AUMidiPassThru();

    virtual OSStatus GetPropertyInfo(AudioUnitPropertyID inID, AudioUnitScope inScope, AudioUnitElement inElement, UInt32& outDataSize, Boolean& outWritable );

    virtual OSStatus GetProperty(AudioUnitPropertyID inID, AudioUnitScope inScope, AudioUnitElement inElement, void* outData);

    virtual OSStatus SetProperty(   AudioUnitPropertyID inID, AudioUnitScope inScope, AudioUnitElement inElement, const void* inData, UInt32 inDataSize);

    virtual bool SupportsTail() { return false; }

    virtual OSStatus Version() { return kAUMidiPassThruVersion; }

    virtual OSStatus HandleMidiEvent(UInt8 status, UInt8 channel, UInt8 data1, UInt8 data2, UInt32 inOffsetSampleFrame);

    virtual OSStatus Render(AudioUnitRenderActionFlags &ioActionFlags, const AudioTimeStamp& inTimeStamp, UInt32 nFrames);

private:

    AUMIDIOutputCallbackStruct mMIDIOutCB;

    LockFreeFIFO<MIDIPacket> mOutputPacketFIFO;

};

#endif