Jack2  1.9.9
JackALSARawMidiPort.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 __JackALSARawMidiPort__
21 #define __JackALSARawMidiPort__
22 
23 #include <alsa/asoundlib.h>
24 #include <poll.h>
25 
26 #include "JackConstants.h"
27 
28 namespace Jack {
29 
31 
32  private:
33 
34  char alias[REAL_JACK_PORT_NAME_SIZE];
35  struct pollfd *alsa_poll_fds;
36  int alsa_poll_fd_count;
37  int fds[2];
38  unsigned short io_mask;
39  char name[REAL_JACK_PORT_NAME_SIZE];
40  struct pollfd *queue_poll_fd;
41 
42  protected:
43 
44  snd_rawmidi_t *rawmidi;
45 
46  int
47  GetIOPollEvent();
48 
49  int
50  GetQueuePollEvent();
51 
52  void
53  SetIOEventsEnabled(bool enabled);
54 
55  void
56  SetQueueEventsEnabled(bool enabled);
57 
58  bool
59  TriggerQueueEvent();
60 
61  public:
62 
63  JackALSARawMidiPort(snd_rawmidi_info_t *info, size_t index,
64  unsigned short io_mask);
65 
66  virtual
68 
69  const char *
70  GetAlias();
71 
72  const char *
73  GetName();
74 
75  int
76  GetPollDescriptorCount();
77 
78  void
79  PopulatePollDescriptors(struct pollfd *poll_fd);
80 
81  };
82 
83 }
84 
85 #endif