Instrument.hxx

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/*
 * Copyright (c) 2004 MUSIC TECHNOLOGY GROUP (MTG)
 *                         UNIVERSITAT POMPEU FABRA
 *
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#ifndef __INSTRUMENT__
#define __INSTRUMENT__

#include "ProcessingComposite.hxx"
#include "ADSR.hxx"
#include "Oscillator.hxx"
#include "AudioMultiplier.hxx"
#include "ControlMapper.hxx"
#include "ControlMultiplier.hxx"

namespace CLAM
{
        class Instrument: public ProcessingComposite
        {
        private:
                AudioOutPort    mOut;
                enum Status {
                        eDone = 0,
                        eBusy = 1
                } mStatus;

                int              mId;

        protected:
                FloatInControl   mStateIn;
                FloatInControl   mNoteIn;
                FloatInControl   mVelocityIn;

                FloatOutControl  mStateOut;
                FloatOutControl  mNoteOut;
                FloatOutControl  mVelocityOut;

        public:
                friend class Dispatcher;
                
                void SetId(int id) { mId = id; }

                Instrument()
                        : mOut("AudioOut",this)
                        , mStatus( eDone )
                        , mStateIn( "StateIn", this, &Instrument::UpdateState )
                        , mNoteIn( "Note", this, &Instrument::UpdateNote )
                        , mVelocityIn( "Velocity", this, &Instrument::UpdateVel )

                        , mStateOut( "State", this )
                        , mNoteOut( "NoteOut", this )
                        , mVelocityOut( "VelocityOut", this )
                {
                }
                
                void LinkStateOutWithInControl(Processing* inProc, unsigned inId)
                {
                        GetOutControl(0).AddLink( inProc->GetInControl(inId));
//                      LinkOutWithInControl( 0, inProc, inId );
                }

                void UpdateState( TControlData value )
                {
                        if ( value == 0.0 )
                        {
                                mStateOut.SendControl( mId ); 
                                mStatus = eDone;
                        }
                        else
                                mStatus = eBusy;
                }

                void UpdateNote( TControlData value )
                {
                        mNoteOut.SendControl( value );
                }
                
                void UpdateVel( TControlData value )
                {
                        mVelocityOut.SendControl( value );
                }

        public:
                virtual bool Do(Audio& audio) = 0;
                bool Do(void)
                {
                        bool ret = Do(mOut.GetAudio());
                        mOut.Produce();
                        return ret;
                }
                const char * GetClassName() const {return "Instrument";}
        };
}

#endif