Jack2 1.9.12

JackCoreMidiOutputPort.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 __JackCoreMidiOutputPort__
21 #define __JackCoreMidiOutputPort__
22
23 #include <semaphore.h>
24
25 #include "JackCoreMidiPort.h"
26 #include "JackMidiAsyncQueue.h"
27 #include "JackMidiBufferReadQueue.h"
28 #include "JackThread.h"
29
30 namespace Jack {
31
32 class JackCoreMidiOutputPort:
33 public JackCoreMidiPort, public JackRunnableInterface {
34
35 private:
36
37 jack_midi_event_t *
38 GetCoreMidiEvent(bool block);
39
40 MIDITimeStamp
41 GetTimeStampFromFrames(jack_nframes_t frames);
42
43 static const size_t PACKET_BUFFER_SIZE = 65536;
44
45 SInt32 advance_schedule_time;
46 char packet_buffer[PACKET_BUFFER_SIZE];
47 JackMidiBufferReadQueue *read_queue;
48 char semaphore_name[128];
49 JackThread *thread;
50 JackMidiAsyncQueue *thread_queue;
51 sem_t *thread_queue_semaphore;
52
53 protected:
54
55 virtual bool
56 SendPacketList(MIDIPacketList *packet_list) = 0;
57
58 void
59 Initialize(const char *alias_name, const char *client_name,
60 const char *driver_name, int index,
61 MIDIEndpointRef endpoint, SInt32 advance_schedule_time);
62
63 public:
64
65 JackCoreMidiOutputPort(double time_ratio, size_t max_bytes=4096,
66 size_t max_messages=1024);
67
68 virtual
69 ~JackCoreMidiOutputPort();
70
71 bool
72 Execute();
73
74 bool
75 Init();
76
77 void
78 ProcessJack(JackMidiBuffer *port_buffer, jack_nframes_t frames);
79
80 bool
81 Start();
82
83 bool
84 Stop();
85
86 };
87
88 }
89
90 #endif
Jack::JackCoreMidiOutputPort::Init
bool Init()
Jack::JackMidiAsyncQueue
Definition: JackMidiAsyncQueue.h:40
Jack::JackCoreMidiPort
Definition: JackCoreMidiPort.h:30
Jack::JackRunnableInterface
The base class for runnable objects, that have an Init and Execute method to be called in a threa...
Definition: JackThread.h:34
Jack::JackCoreMidiOutputPort
Definition: JackCoreMidiOutputPort.h:32
jack_midi_event_t
Definition: JackMidiPort.h:33
Jack::JackMidiBuffer
Definition: JackMidiPort.h:75
Jack::JackMidiBufferReadQueue
Definition: JackMidiBufferReadQueue.h:31
Jack::JackMachThread
Darwin threads. Real-time threads are actually "time constraint" threads.
Definition: JackMachThread.h:92