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alsa_sequencer.h

/*
    Copyright (C) 2004 Paul Davis 
    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., 675 Mass Ave, Cambridge, MA 02139, USA.

    $Id: alsa_sequencer.h,v 1.3 2004/06/13 12:56:56 taybin Exp $
*/

#ifndef __alsa_sequencer_midiport_h__
#define __alsa_sequencer_midiport_h__

#include <vector>
#include <string>

#include <fcntl.h>
#include <unistd.h>

#include <alsa/asoundlib.h>
#include <midi++/port.h>

namespace MIDI {

class ALSA_SequencerMidiPort : public Port

{
  public:
      ALSA_SequencerMidiPort (PortRequest &req);
      virtual ~ALSA_SequencerMidiPort ();

      /* select(2)/poll(2)-based I/O */

      virtual int selectable() const;

  protected:
      /* Direct I/O */
      
      int write (byte *msg, size_t msglen);     
      int read (byte *buf, size_t max);

  private:
      snd_seq_t *seq;
      snd_midi_event_t *decoder, *encoder;
      int port_id;
      snd_seq_event_t SEv;
      int CreatePorts(PortRequest &req);

};

}; /* namespace MIDI */

#endif // __alsa_sequencer_midiport_h__


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