Jack2  1.9.9
JackCoreMidiPhysicalOutputPort.cpp
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 #include <sstream>
21 #include <stdexcept>
22 
23 #include "JackCoreMidiPhysicalOutputPort.h"
24 #include "JackCoreMidiUtil.h"
25 
27 
28 JackCoreMidiPhysicalOutputPort::
29 JackCoreMidiPhysicalOutputPort(const char *alias_name, const char *client_name,
30  const char *driver_name, int index,
31  MIDIClientRef client,
32  MIDIPortRef internal_output, double time_ratio,
33  size_t max_bytes,
34  size_t max_messages):
35  JackCoreMidiOutputPort(time_ratio, max_bytes,
36  max_messages)
37 {
38  MIDIEndpointRef destination = MIDIGetDestination(index);
39  if (! destination) {
40  // X: Can we get a better error message?
41  std::stringstream stream;
42  stream << "The destination at index '" << index
43  << "' is not available";
44  throw std::runtime_error(stream.str().c_str());
45  }
46  SInt32 advance_schedule_time;
47  OSStatus status =
48  MIDIObjectGetIntegerProperty(destination,
49  kMIDIPropertyAdvanceScheduleTimeMuSec,
50  &advance_schedule_time);
51  if (status != noErr) {
52  WriteMacOSError("JackCoreMidiPhysicalOutputPort [constructor]",
53  "MIDIObjectGetIntegerProperty", status);
54  advance_schedule_time = 0;
55  } else if (advance_schedule_time < 0) {
56  advance_schedule_time = 0;
57  }
58  Initialize(alias_name, client_name, driver_name, index, destination,
59  advance_schedule_time);
60  this->internal_output = internal_output;
61 }
62 
63 JackCoreMidiPhysicalOutputPort::~JackCoreMidiPhysicalOutputPort()
64 {
65  // Empty
66 }
67 
68 bool
69 JackCoreMidiPhysicalOutputPort::SendPacketList(MIDIPacketList *packet_list)
70 {
71  OSStatus status = MIDISend(internal_output, endpoint, packet_list);
72  bool result = status == noErr;
73  if (! result) {
74  WriteMacOSError("JackCoreMidiPhysicalOutputPort::SendPacketList",
75  "MIDISend", status);
76  }
77  return result;
78 }