MIDIMapper.h

#ifndef __MidiMapper__
#define __MidiMapper__
 
/*
  GUIDO Library
  Copyright (C) 2011  Grame
 
 
  This Source Code Form is subject to the terms of the Mozilla Public
  License, v. 2.0. If a copy of the MPL was not distributed with this
  file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
  Grame Research Laboratory, 11, cours de Verdun Gensoul 69002 Lyon - France
  research@grame.fr
 
*/
 
#include <map>
 
#include "TimeUnwrap.h"
#include "MidiShareLight.h"
 
typedef struct TMidiSeq *MidiSeqPtr;
struct Guido2MidiParams;
 
//------------------------------------------------------------------------------
class MidiMapper : public TimeUnwrap
{
    private:
        const Guido2MidiParams* fParams;
        MidiLight*      fMidi;
        MidiSeqPtr      fSeq;
        MidiSeqPtr      fTempoMap;
        int             fChan;
        float           fLastTempo;
        TYPE_TIMEPOSITION   fUPosition;     // the current unrolled time position
        int             fFlags;             // a bit field carrying accents, stacc, tenuto, etc...
        int             fCurrVelocity;      // the current velocity, updated by \intens tags
        std::map<char, MidiEvPtr>   fTiedNotes;     // tied notes mapped by Midi pitch
        TYPE_DURATION   fEmptyDur;          // empty duration storage: used for chords
        bool            fChord;             // a flag to indicate that we're in a chord
        
        enum { knoflag, hasStaccato=1, hasSlur=hasStaccato*2, hasTenuto=hasSlur*2, hasFermata = hasTenuto*2,
            hasAccent=hasFermata*2,  hasMarcato=hasAccent*2, hasTie=hasMarcato*2 };
 
        int         Ticks (TYPE_DURATION duration);
        int         AdjustDuration (int duration, const Guido2MidiParams* p) const;
        int         AdjustVelocity (int vel, const Guido2MidiParams* p) const;
        void        MoveTime (TYPE_DURATION duration);
        void        TempoChge (const ARMusicalObject * ev);
        void        IntensChge (const ARMusicalObject * ev);
        void        TiedNote (MidiEvPtr note);
 
    protected:
        virtual void        Event (const ARMusicalObject * ev, EventType type);
        virtual void        Note (const ARMusicalObject * ev);
        virtual void        Rest (const ARMusicalObject * ev);
 
    public:
                 MidiMapper(ARMusicalVoice* voice, MidiLight* midi, const Guido2MidiParams* p, int chan, MidiSeqPtr outseq, MidiSeqPtr tmap);
        virtual ~MidiMapper();
        
        virtual void    AtPos (const ARMusicalObject * ev, EventType type);
 
        void        End();
        void        Clear();
};
 
 
#endif