common/JackMidiBufferWriteQueue.h

   1 /*
   2 Copyright (C) 2010 Devin Anderson
   3
   4 This program is free software; you can redistribute it and/or modify
   5 it under the terms of the GNU Lesser General Public License as published by
   6 the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
  13
  14 You should have received a copy of the GNU Lesser General Public License
  15 along with this program; if not, write to the Free Software
  16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18 */
  19
  20 #ifndef __JackMidiBufferWriteQueue__
  21 #define __JackMidiBufferWriteQueue__
  22
  23 #include "JackMidiWriteQueue.h"
  24
  25 namespace Jack {
  26
  27     /**
  28      * Wrapper class to present a JackMidiBuffer in a write queue interface.
  29      */
  30
  31     class SERVER_EXPORT JackMidiBufferWriteQueue: public JackMidiWriteQueue {
  32
  33     private:
  34
  35         JackMidiBuffer *buffer;
  36         jack_nframes_t last_frame_time;
  37         size_t max_bytes;
  38         jack_nframes_t next_frame_time;
  39
  40     public:
  41
  42         using JackMidiWriteQueue::EnqueueEvent;
  43
  44         JackMidiBufferWriteQueue();
  45
  46         EnqueueResult
  47         EnqueueEvent(jack_nframes_t time, size_t size,
  48                      jack_midi_data_t *buffer);
  49
  50         /**
  51          * This method must be called each period to reset the MIDI buffer for
  52          * processing.
  53          */
  54
  55         void
  56         ResetMidiBuffer(JackMidiBuffer *buffer, jack_nframes_t frames);
  57
  58     };
  59
  60 }
  61
  62 #endif