Instrument.hxx

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00001 /*
00002  * Copyright (c) 2004 MUSIC TECHNOLOGY GROUP (MTG)
00003  *                         UNIVERSITAT POMPEU FABRA
00004  *
00005  *
00006  * This program is free software; you can redistribute it and/or modify
00007  * it under the terms of the GNU General Public License as published by
00008  * the Free Software Foundation; either version 2 of the License, or
00009  * (at your option) any later version.
00010  *
00011  * This program is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  * GNU General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU General Public License
00017  * along with this program; if not, write to the Free Software
00018  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00019  *
00020  */
00021 
00022 #ifndef __INSTRUMENT__
00023 #define __INSTRUMENT__
00024 
00025 #include "ProcessingComposite.hxx"
00026 #include "ADSR.hxx"
00027 #include "Oscillator.hxx"
00028 #include "AudioMultiplier.hxx"
00029 #include "ControlMapper.hxx"
00030 #include "ControlMultiplier.hxx"
00031 
00032 namespace CLAM
00033 {
00034         class Instrument: public ProcessingComposite
00035         {
00036         private:
00037                 AudioOutPort    mOut;
00038                 enum Status {
00039                         eDone = 0,
00040                         eBusy = 1
00041                 } mStatus;
00042 
00043                 int              mId;
00044 
00045         protected:
00046                 FloatInControl   mStateIn;
00047                 FloatInControl   mNoteIn;
00048                 FloatInControl   mVelocityIn;
00049 
00050                 FloatOutControl  mStateOut;
00051                 FloatOutControl  mNoteOut;
00052                 FloatOutControl  mVelocityOut;
00053 
00054         public:
00055                 friend class Dispatcher;
00056                 
00057                 void SetId(int id) { mId = id; }
00058 
00059                 Instrument()
00060                         : mOut("AudioOut",this)
00061                         , mStatus( eDone )
00062                         , mStateIn( "StateIn", this, &Instrument::UpdateState )
00063                         , mNoteIn( "Note", this, &Instrument::UpdateNote )
00064                         , mVelocityIn( "Velocity", this, &Instrument::UpdateVel )
00065 
00066                         , mStateOut( "State", this )
00067                         , mNoteOut( "NoteOut", this )
00068                         , mVelocityOut( "VelocityOut", this )
00069                 {
00070                 }
00071                 
00072                 void LinkStateOutWithInControl(Processing* inProc, unsigned inId)
00073                 {
00074                         GetOutControl(0).AddLink( inProc->GetInControl(inId));
00075 //                      LinkOutWithInControl( 0, inProc, inId );
00076                 }
00077 
00078                 void UpdateState( TControlData value )
00079                 {
00080                         if ( value == 0.0 )
00081                         {
00082                                 mStateOut.SendControl( mId ); 
00083                                 mStatus = eDone;
00084                         }
00085                         else
00086                                 mStatus = eBusy;
00087                 }
00088 
00089                 void UpdateNote( TControlData value )
00090                 {
00091                         mNoteOut.SendControl( value );
00092                 }
00093                 
00094                 void UpdateVel( TControlData value )
00095                 {
00096                         mVelocityOut.SendControl( value );
00097                 }
00098 
00099         public:
00100                 virtual bool Do(Audio& audio) = 0;
00101                 bool Do(void)
00102                 {
00103                         bool ret = Do(mOut.GetAudio());
00104                         mOut.Produce();
00105                         return ret;
00106                 }
00107                 const char * GetClassName() const {return "Instrument";}
00108         };
00109 }
00110 
00111 #endif
00112 
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