jdkmidi class library documentation
Copyright © 2004 J.D. Koftinoff Software, Ltd.
Released under the GNU General Public License (GPL)

---

src/jdkmidi_msg.cpp

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/*
 *  libjdkmidi-2004 C++ Class Library for MIDI
 *
 *  Copyright (C) 2004  J.D. Koftinoff Software, Ltd.
 *  www.jdkoftinoff.com
 *  jeffk@jdkoftinoff.com
 *
 *  *** RELEASED UNDER THE GNU GENERAL PUBLIC LICENSE (GPL) April 27, 2004 ***
 *
 *  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
*/
/*
**  Copyright 1986 to 1998 By J.D. Koftinoff Software, Ltd.
**
**  All rights reserved.
**
**  No one may duplicate this source code in any form for any reason
**  without the written permission given by J.D. Koftinoff Software, Ltd.
**
*/

#include "jdkmidi/world.h"

#include "jdkmidi/sysex.h"
#include "jdkmidi/msg.h"

namespace jdkmidi
{
  
  
  
  char *  MIDIMessage::chan_msg_name[16] = 
  {
    "ERROR 00    ",   // 0x00
    "ERROR 10    ",   // 0x10
    "ERROR 20    ",   // 0x20
    "ERROR 30    ",       // 0x30
    "ERROR 40    ",       // 0x40
    "ERROR 50    ",       // 0x50
    "ERROR 60    ",       // 0x60
    "ERROR 70    ",       // 0x70
    "NOTE OFF    ",   // 0x80
    "NOTE ON     ",   // 0x90
    "POLY PRES.  ",   // 0xa0
    "CTRL CHANGE ",   // 0xb0
    "PG CHANGE   ",   // 0xc0
    "CHAN PRES.  ",   // 0xd0
    "BENDER      ",   // 0xe0
    "SYSTEM      "    // 0xf0
  }; 
  
  char *  MIDIMessage::sys_msg_name[16] = 
  {
    "SYSEX       ",   // 0xf0
    "MTC         ",   // 0xf1
    "SONG POS    ",   // 0xf2
    "SONG SELECT ",   // 0xf3
    "ERR - F4    ",   // 0xf4
    "ERR - F5    ",   // 0xf5
    "TUNE REQ.   ",   // 0xf6
    "SYSEX END   ",   // 0xf7
    "CLOCK       ",   // 0xf8
    "MEASURE END ",   // 0xf9
    "START       ",   // 0xfa
    "CONTINUE    ",   // 0xfb
    "STOP        ",         // 0xfc
    "ERR - FD    ",         // 0xfd
    "SENSE       ",   // 0xfe
    "META-EVENT  "    // 0xff
  }; 
  
  
  char *  MIDIMessage::MsgToText( char *txt ) const 
  {
    char buf[64];
    int len=GetLength();
    
    *txt=0;
    
    if( IsAllNotesOff() )
    {
      sprintf( buf, "Ch %2d  All Notes Off  (ctrl=%3d)", (int)GetChannel()+1, (int)byte1 );
      
      strcat( txt, buf );
    }
    else
    {
      int type=(status&0xf0)>>4;
      
      //
      // if it is a note on with vel=0, call it a NOTE OFF
      //
      
      if( type==9 && byte2==0 )
        type=8;
      
      if( type!=0xf )
      {
        sprintf( buf, "Ch %2d  ", (int)GetChannel()+1 );
        strcat( txt, buf  );
      }
      
      
      strcat( txt, chan_msg_name[type] );
      
      if( status>=0xf0 )
      {
        strcat( txt, sys_msg_name[status-0xf0] );
        
        if( len>1 )
        {
          sprintf( buf,"%02x", (int)byte1 );
          strcat( txt, buf );
        }
        
        if( len>2 )
        {     
          sprintf( buf,",%02x", (int)byte2 );
          strcat( txt, buf );
        }
        
        if( len>3 )
        {       
          sprintf( buf,",%02x", (int)byte3 );       
          strcat( txt, buf );
        }
        
      }
      else
      {
        char *endtxt = txt+strlen(txt);
        
        switch( status&0xf0 )
        {
        case NOTE_ON:
          if( byte2==0 )
            sprintf( endtxt, "Note %3d", (int)byte1 );
          else
            sprintf( endtxt, "Note %3d  Vel  %3d  ", (int)byte1, (int)byte2 );
          break;
        case NOTE_OFF:
          sprintf( endtxt, "Note %3d  Vel  %3d  ", (int)byte1, (int)byte2 );
          break;
        case POLY_PRESSURE:
          sprintf( endtxt, "Note %3d  Pres %3d  ", (int)byte1, (int)byte2 );
          break;
        case CONTROL_CHANGE:
          sprintf( endtxt, "Ctrl %3d  Val  %3d  ", (int)byte1, (int)byte2 );
          break;
        case PROGRAM_CHANGE:
          sprintf( endtxt, "PG   %3d  ", (int)byte1 );
          break;
        case CHANNEL_PRESSURE:
          sprintf( endtxt, "Pres %3d  ", (int)byte1 );
          break;
        case PITCH_BEND:
          sprintf( endtxt, "Val %5d", (int)GetBenderValue() );
          break;
        }
      }
    }
    
    //
    // pad the rest with spaces
    //
    
    {
      int len=strlen(txt);
      char *p=txt+len;
      
      while( len<45 )
      {
        *p++=' ';
        ++len;
      }
      *p++='\0';
    }
    
    return txt;
  } 
  
  
  MIDIMessage::MIDIMessage() 
  { 
    status=0;
    byte1=0; 
    byte2=0;
    byte3=0;  
  } 
  
  
  MIDIMessage::MIDIMessage( const MIDIMessage &m ) 
  {
    status=m.status;
    byte1=m.byte1;
    byte2=m.byte2;
    byte3=m.byte3;
  } 
  
  
  void  MIDIMessage::Clear() 
  {
    status=0;
    byte1=0;
    byte2=0;
    byte3=0;
  } 
  
  
  void  MIDIMessage::Copy( const MIDIMessage & m ) 
  {
    status=m.status;
    byte1=m.byte1;
    byte2=m.byte2;
    byte3=m.byte3;
  } 
  
  
  
//
// The equal operator
//
  
  const MIDIMessage & MIDIMessage::operator = ( const MIDIMessage &m ) 
  {
    status=m.status;
    byte1=m.byte1;
    byte2=m.byte2;
    byte3=m.byte3;
    return *this;
  } 
  
  
  char  MIDIMessage::GetLength() const 
  {
    if( (status&0xf0)==0xf0 )
    {
      return GetSystemMessageLength( status );
    }
    else
    {
      return GetMessageLength( status );
    }
  } 
  
  
  
  short MIDIMessage::GetBenderValue() const 
  { 
    return (short)(((byte2<<7) | byte1)-8192);  
  } 
  
  
  unsigned short  MIDIMessage::GetMetaValue() const 
  { 
    return (unsigned short)((byte3<<8) | byte2);  
  } 
  
  unsigned char MIDIMessage::GetTimeSigNumerator() const 
  {
    return byte2; 
  } 
  
  
  unsigned char MIDIMessage::GetTimeSigDenominator() const 
  {
    return byte3;
  } 
  
  
  signed char MIDIMessage::GetKeySigSharpFlats() const
  {
    return (signed char)byte2;
  }

  unsigned char MIDIMessage::GetKeySigMajorMinor() const
  {
    return byte3;
  }
  
  
  bool  MIDIMessage::IsChannelMsg() const 
  {
    return (status>=0x80) && (status<0xf0);
  } 
  
  
  bool  MIDIMessage::IsNoteOn() const 
  {
    return ((status&0xf0)==NOTE_ON) && byte2;
  } 
  
  
  bool  MIDIMessage::IsNoteOff() const 
  {
    return ((status&0xf0)==NOTE_OFF) ||
      (((status&0xf0)==NOTE_ON) && byte2==0 );
  } 
  
  
  bool  MIDIMessage::IsPolyPressure() const 
  {
    return ((status&0xf0)==POLY_PRESSURE );
  } 
  
  
  bool  MIDIMessage::IsControlChange() const 
  {
    return ((status&0xf0)==CONTROL_CHANGE);
  } 
  
  
  bool  MIDIMessage::IsProgramChange() const 
  {
    return ((status&0xf0)==PROGRAM_CHANGE);
  } 
  
  
  bool  MIDIMessage::IsChannelPressure() const 
  {
    return ((status&0xf0)==CHANNEL_PRESSURE);
  } 
  
  
  bool  MIDIMessage::IsPitchBend() const 
  {
    return ((status&0xf0)==PITCH_BEND);
  } 
  
  
  bool  MIDIMessage::IsSystemMessage() const 
  {
    return (status&0xf0)==0xf0;
  } 
  
  
  bool  MIDIMessage::IsSysEx() const 
  {
    return (status==SYSEX_START);
  } 
  
  
  short MIDIMessage::GetSysExNum() const 
  {
    return (short)((byte3<<8) | byte2);
  } 
  
  
  bool  MIDIMessage::IsMTC() const 
  {
    return (status==MTC);
  } 
  
  
  bool  MIDIMessage::IsSongPosition() const 
  {
    return (status==SONG_POSITION);
  } 
  
  
  bool  MIDIMessage::IsSongSelect() const 
  {
    return (status==SONG_SELECT);
  } 
  
  
  bool  MIDIMessage::IsTuneRequest() const 
  {
    return (status==TUNE_REQUEST);
  } 
  
  
  bool  MIDIMessage::IsMetaEvent() const 
  {
    return (status==META_EVENT);
  } 
  
  
  bool  MIDIMessage::IsTextEvent() const 
  {
    return (status==META_EVENT) &&
      (byte1>=0x1 && byte1<=0xf);
  } 
  
  
  bool  MIDIMessage::IsAllNotesOff() const 
  {
    return ((status&0xf0)==CONTROL_CHANGE )
      && (byte1>=C_ALL_NOTES_OFF);
  } 
  
  
  bool  MIDIMessage::IsNoOp() const 
  {
    return (status==META_EVENT)
      && (byte1==META_NO_OPERATION);
  } 
  
  
  bool  MIDIMessage::IsTempo() const 
  {
    return (status==META_EVENT)
      && (byte1==META_TEMPO);
  } 
  
  
  bool  MIDIMessage::IsDataEnd() const 
  {
    return (status==META_EVENT)
      && (byte1==META_DATA_END );
  } 
  
  bool  MIDIMessage::IsTimeSig() const 
  {
    return (status==META_EVENT)
      && (byte1==META_TIMESIG );
  }

  bool  MIDIMessage::IsKeySig() const 
  {
    return (status==META_EVENT)
      && (byte1==META_KEYSIG );
  }
  
  bool  MIDIMessage::IsBeatMarker() const 
  {
    return (status==META_EVENT)
      && (byte1==META_BEAT_MARKER);
  }
  
  
  
  unsigned short  MIDIMessage::GetTempo32() const 
  {
    return GetMetaValue();
  } 
  
  
  unsigned short  MIDIMessage::GetLoopNumber() const 
  {
    return GetMetaValue();
  } 
  
  
  void  MIDIMessage::SetBenderValue( short v) 
  {
    short x=(short)(v+8192);
    byte1=(unsigned char)(x&0x7f);
    byte2=(unsigned char)((x>>7)&0x7f);
  } 
  
  
  void  MIDIMessage::SetMetaType( unsigned char t ) 
  { 
    byte1=t;    
  } 
  
  
  
  void  MIDIMessage::SetMetaValue( unsigned short v ) 
  {
    byte2=(unsigned char)(v&0xff);
    byte3=(unsigned char)((v>>8)&0xff);
  } 
  
  
  void  MIDIMessage::SetNoteOn( unsigned char chan, unsigned char note, unsigned char vel ) 
  {
    status=(unsigned char)(chan | NOTE_ON);
    byte1=note;
    byte2=vel;
    byte3=0;
  } 
  
  
  void  MIDIMessage::SetNoteOff( unsigned char chan, unsigned char note, unsigned char vel ) 
  {
    status=(unsigned char)(chan | NOTE_OFF);
    byte1=note;
    byte2=vel;
    byte3=0;
  } 
  
  
  void  MIDIMessage::SetPolyPressure( unsigned char chan, unsigned char note, unsigned char pres ) 
  {
    status=(unsigned char)(chan | POLY_PRESSURE);
    byte1=note;
    byte2=pres;
    byte3=0;
  } 
  
  
  void  MIDIMessage::SetControlChange( unsigned char chan, unsigned char ctrl, unsigned char val ) 
  {
    status=(unsigned char)(chan | CONTROL_CHANGE);
    byte1=ctrl;
    byte2=val;
    byte3=0;
  } 
  
  
  void  MIDIMessage::SetProgramChange( unsigned char chan, unsigned char val ) 
  {
    status=(unsigned char)(chan | PROGRAM_CHANGE);
    byte1=val;
    byte2=0;
    byte3=0;
  } 
  
  
  void  MIDIMessage::SetChannelPressure( unsigned char chan, unsigned char val ) 
  {
    status=(unsigned char)(chan | CHANNEL_PRESSURE);
    byte1=val;
    byte2=0;
    byte3=0;
  } 
  
  
  void  MIDIMessage::SetPitchBend( unsigned char chan, short val ) 
  {
    status=(unsigned char)(chan | PITCH_BEND);
    val+=(short)0x2000; // center value
    byte1=(unsigned char)(val&0x7f); // 7 bit bytes
    byte2=(unsigned char)((val>>7)&0x7f);
    byte3=0;
  } 
  
  
  void  MIDIMessage::SetPitchBend( unsigned char chan, unsigned char low, unsigned char high ) 
  {
    status=(unsigned char)(chan | PITCH_BEND);
    byte1=(unsigned char)(low);
    byte2=(unsigned char)(high);
    byte3=0;
  } 
  
  
  void  MIDIMessage::SetSysEx() 
  {
    status=SYSEX_START;
    byte1=0;
    
    int num=0;
    byte2=(unsigned char)(num&0xff);
    byte3=(unsigned char)((num>>8)&0xff);
  } 
  
  
  void  MIDIMessage::SetMTC( unsigned char field, unsigned char v ) 
  {
    status=MTC;
    byte1=(unsigned char)((field<<4) | v);
    byte2=0;
    byte3=0;
  } 
  
  
  void  MIDIMessage::SetSongPosition( short pos ) 
  {
    status=SONG_POSITION;
    byte1=(unsigned char)(pos&0x7f);
    byte2=(unsigned char)((pos>>7)&0x7f);
    byte3=0;
  } 
  
  
  void  MIDIMessage::SetSongSelect(unsigned char sng) 
  {
    status=SONG_SELECT;
    byte1=sng;
    byte2=0;
    byte3=0;
  } 
  
  
  void  MIDIMessage::SetTuneRequest() 
  {
    status=TUNE_REQUEST;
    byte1=0;
    byte2=0;
    byte3=0;
  } 
  
  
  void  MIDIMessage::SetMetaEvent( unsigned char type, unsigned char v1, unsigned char v2 ) 
  {
    status=META_EVENT;
    byte1=type;
    byte2=v1;
    byte3=v2;
  } 
  
  
  void  MIDIMessage::SetMetaEvent( unsigned char type, unsigned short v ) 
  {
    status=META_EVENT;
    byte1=type;
    byte2=(unsigned char)(v&0xff);
    byte3=(unsigned char)((v>>8)&0xff);
  } 
  
  
  void  MIDIMessage::SetAllNotesOff(
    unsigned char chan,
    unsigned char type
    ) 
  {
    status=(unsigned char)(chan|CONTROL_CHANGE);
    byte1=type;
    byte2=0x7f;
    byte3=0;
  } 
  
  
  void  MIDIMessage::SetLocal( unsigned char chan, unsigned char v ) 
  {
    status=(unsigned char)(chan|CONTROL_CHANGE);
    byte1=C_LOCAL;
    byte2=v;
    byte3=0;
  } 
  
  
  void  MIDIMessage::SetNoOp() 
  {
    status=META_EVENT;
    byte1=META_NO_OPERATION;
    byte2=0;
    byte3=0;
  } 
  
  
  void  MIDIMessage::SetTempo32( unsigned short tempo_times_32 ) 
  {
    SetMetaEvent( META_TEMPO, tempo_times_32 );
  } 
  
  
  void  MIDIMessage::SetText( unsigned short text_num, unsigned char type) 
  {
    SetMetaEvent( type, text_num );
  } 
  
  
  void  MIDIMessage::SetDataEnd() 
  {
    SetMetaEvent( META_DATA_END,0 );
  } 
  
  void  MIDIMessage::SetTimeSig( unsigned char num, unsigned char den) 
  {
    SetMetaEvent( META_TIMESIG,num,den );
  } 

  void  MIDIMessage::SetKeySig( signed char sharp_flats, unsigned char major_minor) 
  {
    SetMetaEvent( META_KEYSIG,sharp_flats,major_minor);
  }   
  
  
  void  MIDIMessage::SetBeatMarker() 
  {
    SetMetaEvent( META_BEAT_MARKER,0,0 );
  } 
  
  
  
  MIDIBigMessage::MIDIBigMessage() 
    :
    sysex(0)
  {
  } 
  
  MIDIBigMessage::MIDIBigMessage( const MIDIBigMessage &m ) 
    :
    MIDIMessage( m ),
    sysex( 0 )
  {
    if( m.sysex )
    {
      sysex = new MIDISystemExclusive( *m.sysex );
    }
  } 
  
  MIDIBigMessage::MIDIBigMessage( const MIDIMessage &m ) 
    :
    MIDIMessage( m ),
    sysex( 0 )
  {
  } 
  
  void  MIDIBigMessage::Clear() 
  {
    if( sysex )
    {
      delete sysex;
    }
    sysex=0;
    MIDIMessage::Clear();
  } 
  
  void  MIDIBigMessage::Copy( const MIDIBigMessage &m ) 
  {
    delete sysex;
    if( m.sysex )
    {
      sysex = new MIDISystemExclusive( *m.sysex );
    }
    else
    {
      sysex = 0;
    }
    MIDIMessage::Copy( m );
  } 
  
  void  MIDIBigMessage::Copy( const MIDIMessage &m ) 
  {
    delete sysex;
    sysex = 0;
    MIDIMessage::Copy( m );
  } 
  
//
// destructors
//
  
  MIDIBigMessage::~MIDIBigMessage() 
  {
    if( sysex )
    {
      delete sysex;
      sysex=0;
    }
  } 
  
//
// operator =
//
  
  const MIDIBigMessage &MIDIBigMessage::operator = ( const MIDIBigMessage &m ) 
  {
    delete sysex;
    if( m.sysex )
    {
      sysex = new MIDISystemExclusive( *m.sysex );
    }
    else
    {
      sysex = 0;
    }
    MIDIMessage::operator = (m);
    return *this;
  } 
  
  const MIDIBigMessage &MIDIBigMessage::operator = ( const MIDIMessage &m ) 
  {   
    delete sysex;
    sysex = 0;    
    
    MIDIMessage::operator = (m);
    return *this;
  } 
  
//
// 'Get' methods
//
  
  MIDISystemExclusive *MIDIBigMessage::GetSysEx() 
  {
    return sysex;
  } 
  
  const MIDISystemExclusive *MIDIBigMessage::GetSysEx() const 
  {
    return sysex;
  } 
  
//
// 'Set' methods
//
  
  void MIDIBigMessage::CopySysEx( const MIDISystemExclusive *e ) 
  {
    delete sysex;
    sysex=0;
    if( e )
    {
      sysex = new MIDISystemExclusive( *e );
    }
  } 
  
  
#if 0
  void MIDIBigMessage::SetSysEx( MIDISystemExclusive *e ) 
  {
    delete sysex;
    sysex = e;
  } 
#endif
  
  void MIDIBigMessage::ClearSysEx()  
  {
    delete sysex;
    sysex = 0;
  } 
  
  
  
  
  
  
//
// Constructors
//
  
  MIDITimedMessage::MIDITimedMessage()  
    : time(0)
  {
  } 
  
  MIDITimedMessage::MIDITimedMessage( const MIDITimedMessage &m )  
    : MIDIMessage( m ), time(m.GetTime())
  {
  } 
  
  MIDITimedMessage::MIDITimedMessage( const MIDIMessage &m )  
    : MIDIMessage( m ), time(0)
  {
  } 
  
  void  MIDITimedMessage::Clear() 
  {
    time=0;
    MIDIMessage::Clear();
  } 
  
  void  MIDITimedMessage::Copy( const MIDITimedMessage &m ) 
  {
    time=m.GetTime();
    MIDIMessage::Copy( m );
  } 
  
//
// operator =
//
  
  const MIDITimedMessage &MIDITimedMessage::operator = ( const MIDITimedMessage & m ) 
  {
    time=m.GetTime();
    MIDIMessage::operator = (m);
    return *this;
  } 
  
  const MIDITimedMessage &MIDITimedMessage::operator = ( const MIDIMessage & m ) 
  {
    time=0;
    MIDIMessage::operator = (m);
    return *this;
  } 
  
//
// 'Get' methods
//
  
  MIDIClockTime MIDITimedMessage::GetTime() const
  {
    return time;
  }
  
//
// 'Set' methods
//
  
  void  MIDITimedMessage::SetTime( MIDIClockTime t )
  {
    time=t;
  }
  
  
  
  int   MIDITimedMessage::CompareEvents(
    const MIDITimedMessage &m1,
    const MIDITimedMessage &m2
    ) 
  {
    bool n1 = m1.IsNoOp();
    bool n2 = m2.IsNoOp();
      
      // NOP's always are larger.
      
      if( n1 && n2 )
                      return 0; // same, do not care.
      
      if( n2 )
                return 2; // m2 is larger
      
      if( n1 )
                return 1; // m1 is larger
      
      if( m1.GetTime() > m2.GetTime() )
                                         return 1;  // m1 is larger
      
      if( m2.GetTime() > m1.GetTime() )
                                         return 2;  // m2 is larger
      
      // if times are the same, a note off is always larger
      
      if(     m1.byte1 == m2.byte1
              && m1.GetStatus()==NOTE_ON
              &&  ((m2.GetStatus()==NOTE_ON && m2.byte2==0) || (m2.GetStatus()==NOTE_OFF))
        )
           return 2;  // m2 is larger
      
      if(   m1.byte1 == m2.byte1
                && m2.GetStatus()==NOTE_ON
                &&  ((m1.GetStatus()==NOTE_ON && m1.byte2==0) || (m1.GetStatus()==NOTE_OFF))
        )
           return 1;  // m1 is larger
      
      
      return 0;   // both are equal.
      
  } 
  
  
  
  
  
  MIDIDeltaTimedMessage::MIDIDeltaTimedMessage() 
    : dtime(0)
  {
  } 
  
  MIDIDeltaTimedMessage::MIDIDeltaTimedMessage( const MIDIDeltaTimedMessage &m ) 
    : MIDIMessage( m ), dtime(m.GetDeltaTime())
  {
  } 
  
  MIDIDeltaTimedMessage::MIDIDeltaTimedMessage( const MIDIMessage &m )  
    : MIDIMessage( m ), dtime(0)
  {
  } 
  
  void  MIDIDeltaTimedMessage::Clear() 
  {
    dtime=0;
    MIDIMessage::Clear();
  } 
  
  void  MIDIDeltaTimedMessage::Copy( const MIDIDeltaTimedMessage &m ) 
  {
    dtime=m.GetDeltaTime();
    MIDIMessage::Copy( m );
  } 
  
//
// operator =
//
  
  const MIDIDeltaTimedMessage &MIDIDeltaTimedMessage::operator = ( const MIDIDeltaTimedMessage &m ) 
  {
    dtime=m.GetDeltaTime();
    MIDIMessage::operator = (m);
    return *this;
  } 
  
  const MIDIDeltaTimedMessage &MIDIDeltaTimedMessage::operator = ( const MIDIMessage &m ) 
  {
    dtime=0;
    MIDIMessage::operator = (m);
    return *this;
  } 
  
//
// 'Get' methods
//
  
  MIDIClockTime MIDIDeltaTimedMessage::GetDeltaTime() const 
  { 
    return dtime; 
  }
  
//
// 'Set' methods
//
  
  void  MIDIDeltaTimedMessage::SetDeltaTime( MIDIClockTime t )
  { 
    dtime=t;  
  }
  
  
  
  
  
  
//
// Constructors
//
  
  MIDITimedBigMessage::MIDITimedBigMessage() 
    : time(0)
  {
  } 
  
  MIDITimedBigMessage::MIDITimedBigMessage( const MIDITimedBigMessage &m )  
    : MIDIBigMessage( m ),
      time(m.GetTime())
  {
  } 
  
  MIDITimedBigMessage::MIDITimedBigMessage( const MIDIBigMessage &m )   
    : MIDIBigMessage( m ),
      time(0)
  {
  } 
  
  MIDITimedBigMessage::MIDITimedBigMessage( const MIDITimedMessage &m ) 
    : MIDIBigMessage( m ),
      time(m.GetTime())
  {
  } 
  
  MIDITimedBigMessage::MIDITimedBigMessage( const MIDIMessage &m )  
    : MIDIBigMessage( m ),
      time(0)
  {
  } 
  
  void  MIDITimedBigMessage::Clear() 
  {
    time=0;
    MIDIBigMessage::Clear();
  } 
  
  void  MIDITimedBigMessage::Copy( const MIDITimedBigMessage &m ) 
  {
    time=m.GetTime();
    MIDIBigMessage::Copy( m );
  } 
  
  void  MIDITimedBigMessage::Copy( const MIDITimedMessage &m ) 
  {
    time=m.GetTime();
    MIDIBigMessage::Copy( m );
  } 
  
//
// operator =
//
  
  const MIDITimedBigMessage &MIDITimedBigMessage::operator = ( const MIDITimedBigMessage & m ) 
  {
    time=m.GetTime();
    MIDIBigMessage::operator = (m);
    return *this;
  } 
  
  const MIDITimedBigMessage &MIDITimedBigMessage::operator = ( const MIDITimedMessage & m ) 
  {
    time=m.GetTime();
    MIDIBigMessage::operator = (m);
    return *this;
  } 
  
  const MIDITimedBigMessage &MIDITimedBigMessage::operator = ( const MIDIMessage & m ) 
  {
    time=0;
    MIDIBigMessage::operator = (m);
    return *this;
  } 
  
//
// 'Get' methods
//
  
  MIDIClockTime MIDITimedBigMessage::GetTime() const    
  { 
    return time;  
  }
  
//
// 'Set' methods
//
  
  void  MIDITimedBigMessage::SetTime( MIDIClockTime t )
  {
    time=t;
  }
  
  
  
  int   MIDITimedBigMessage::CompareEvents(
    const MIDITimedBigMessage &m1,
    const MIDITimedBigMessage &m2
    ) 
  {
    bool n1 = m1.IsNoOp();
    bool n2 = m2.IsNoOp();
      
      // NOP's always are larger.
      
      if( n1 && n2 )
                      return 0; // same, do not care.
      
      if( n2 )
                return 2; // m2 is larger
      
      if( n1 )
                return 1; // m1 is larger
      
      if( m1.GetTime() > m2.GetTime() )
                                         return 1;  // m1 is larger
      
      if( m2.GetTime() > m1.GetTime() )
                                         return 2;  // m2 is larger
      
      // if times are the same, a note off is always larger
      
      if(     m1.byte1 == m2.byte1
              && m1.GetStatus()==NOTE_ON
              &&  ((m2.GetStatus()==NOTE_ON && m2.byte2==0) || (m2.GetStatus()==NOTE_OFF))
        )
           return 2;  // m2 is larger
      
      if(   m1.byte1 == m2.byte1
                && m2.GetStatus()==NOTE_ON
                &&  ((m1.GetStatus()==NOTE_ON && m1.byte2==0) || (m1.GetStatus()==NOTE_OFF))
        )
           return 1;  // m1 is larger
      
      
      return 0;   // both are equal.
      
  } 
  
  
  
//
// Constructors
//
  
  MIDIDeltaTimedBigMessage::MIDIDeltaTimedBigMessage() 
    : dtime(0)
  {
  } 
  
  MIDIDeltaTimedBigMessage::MIDIDeltaTimedBigMessage( const MIDIDeltaTimedBigMessage &m ) 
    : MIDIBigMessage( m ), dtime(m.GetDeltaTime())
  {   
  } 
  
  MIDIDeltaTimedBigMessage::MIDIDeltaTimedBigMessage( const MIDIBigMessage &m )   
    : MIDIBigMessage( m ), dtime(0)
  {
  } 
  
  MIDIDeltaTimedBigMessage::MIDIDeltaTimedBigMessage( const MIDIMessage &m ) 
    : MIDIBigMessage( m ), dtime(0)
  {
  } 
  
  MIDIDeltaTimedBigMessage::MIDIDeltaTimedBigMessage( const MIDIDeltaTimedMessage &m ) 
    : MIDIBigMessage( m ), dtime(m.GetDeltaTime())
  {
  } 
  
  void  MIDIDeltaTimedBigMessage::Clear() 
  {
    dtime=0;
    MIDIBigMessage::Clear();
  } 
  
  void  MIDIDeltaTimedBigMessage::Copy( const MIDIDeltaTimedBigMessage &m ) 
  {
    dtime=m.GetDeltaTime();
    MIDIBigMessage::Copy( m );
  } 
  
  void  MIDIDeltaTimedBigMessage::Copy( const MIDIDeltaTimedMessage &m ) 
  {
    dtime=m.GetDeltaTime();
    MIDIBigMessage::Copy( m );
  } 
  
//
// operator =
//
  
  const MIDIDeltaTimedBigMessage &MIDIDeltaTimedBigMessage::operator = ( const MIDIDeltaTimedBigMessage &m ) 
  {
    dtime=m.GetDeltaTime();
    MIDIBigMessage::operator = (m);
    return *this;
  } 
  
  const MIDIDeltaTimedBigMessage &MIDIDeltaTimedBigMessage::operator = ( const MIDIDeltaTimedMessage &m ) 
  {
    dtime=m.GetDeltaTime();
    MIDIBigMessage::operator = (m);
    return *this;
  } 
  
  const MIDIDeltaTimedBigMessage &MIDIDeltaTimedBigMessage::operator = ( const MIDIMessage &m ) 
  {
    dtime=0;
    MIDIBigMessage::operator = (m);
    return *this;
  } 
  
//
// 'Get' methods
//
  
  MIDIClockTime MIDIDeltaTimedBigMessage::GetDeltaTime() const  
  { 
    return dtime; 
  }
  
//
// 'Set' methods
//
  
  void  MIDIDeltaTimedBigMessage::SetDeltaTime( MIDIClockTime t ) 
  { 
    dtime=t;    
  }
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
}