gxMidiDataQueue.h

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/*  Copyright (C) 2005  Guido Simone
 *
 *  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 GXLIB_GXMIDIDATAQUEUE_H
#define GXLIB_GXMIDIDATAQUEUE_H

#include "../gx.h"
#include "gxMidiData.h"
class gxMidiDataQueue
{
public:
   gxMidiDataQueue() { m_count = 0; }
   virtual ~gxMidiDataQueue() {}

   virtual int add( midi_time_t midiTime, midi_message_t midiMessage, int clientData = 0)
   {
      if ( m_count == QUEUE_SIZE )
         return E_FAIL;

      gxMidiData & item = m_queue[m_count];
      item.setTime(midiTime);
      item.setMessage(midiMessage);
      item.setClientData( clientData );
      m_count++;
      return 0;
   }
   virtual void clear()
   {
      m_count = 0;
   }
   virtual int getCount()
   {
      return m_count;
   }
   virtual gxMidiData & get( int index )
   {
      return m_queue[index];
   }
private:
   enum { QUEUE_SIZE = 512 };

   typedef gxMidiData queue_t[ QUEUE_SIZE ] ;
   queue_t m_queue;
   int     m_count;

   gxMidiDataQueue( const gxMidiDataQueue & rhs);
   gxMidiDataQueue & operator=( const gxMidiDataQueue & rhs);
};
#endif

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