linux/alsarawmidi/JackALSARawMidiSendQueue.h

   1 /*
   2 Copyright (C) 2011 Devin Anderson
   3
   4 This program is free software; you can redistribute it and/or modify
   5 it under the terms of the GNU General Public License as published by
   6 the Free Software Foundation; either version 2 of the License, or
   7 (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program; if not, write to the Free Software
  16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifndef __JackALSARawMidiSendQueue__
  21 #define __JackALSARawMidiSendQueue__
  22
  23 #include <alsa/asoundlib.h>
  24
  25 #include "JackMidiSendQueue.h"
  26
  27 namespace Jack {
  28
  29     class JackALSARawMidiSendQueue: public JackMidiSendQueue {
  30
  31     private:
  32
  33         bool blocked;
  34         size_t bytes_available;
  35         size_t bytes_per_poll;
  36         snd_rawmidi_t *rawmidi;
  37
  38     public:
  39
  40         JackALSARawMidiSendQueue(snd_rawmidi_t *rawmidi,
  41                                  size_t bytes_per_poll=0);
  42
  43         JackMidiWriteQueue::EnqueueResult
  44         EnqueueEvent(jack_nframes_t time, size_t size,
  45                      jack_midi_data_t *buffer);
  46
  47         bool
  48         IsBlocked();
  49
  50         void
  51         ResetPollByteCount();
  52
  53     };
  54
  55 }
  56
  57 #endif