Jack2 1.9.10
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00001 /* 00002 Copyright (C) 2011 Devin Anderson 00003 00004 This program is free software; you can redistribute it and/or modify 00005 it under the terms of the GNU General Public License as published by 00006 the Free Software Foundation; either version 2 of the License, or 00007 (at your option) any later version. 00008 00009 This program is distributed in the hope that it will be useful, 00010 but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 GNU General Public License for more details. 00013 00014 You should have received a copy of the GNU General Public License 00015 along with this program; if not, write to the Free Software 00016 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00017 00018 */ 00019 00020 #ifndef __JackCoreMidiOutputPort__ 00021 #define __JackCoreMidiOutputPort__ 00022 00023 #include <semaphore.h> 00024 00025 #include "JackCoreMidiPort.h" 00026 #include "JackMidiAsyncQueue.h" 00027 #include "JackMidiBufferReadQueue.h" 00028 #include "JackThread.h" 00029 00030 namespace Jack { 00031 00032 class JackCoreMidiOutputPort: 00033 public JackCoreMidiPort, public JackRunnableInterface { 00034 00035 private: 00036 00037 jack_midi_event_t * 00038 GetCoreMidiEvent(bool block); 00039 00040 MIDITimeStamp 00041 GetTimeStampFromFrames(jack_nframes_t frames); 00042 00043 static const size_t PACKET_BUFFER_SIZE = 65536; 00044 00045 SInt32 advance_schedule_time; 00046 char packet_buffer[PACKET_BUFFER_SIZE]; 00047 JackMidiBufferReadQueue *read_queue; 00048 char semaphore_name[128]; 00049 JackThread *thread; 00050 JackMidiAsyncQueue *thread_queue; 00051 sem_t *thread_queue_semaphore; 00052 00053 protected: 00054 00055 virtual bool 00056 SendPacketList(MIDIPacketList *packet_list) = 0; 00057 00058 void 00059 Initialize(const char *alias_name, const char *client_name, 00060 const char *driver_name, int index, 00061 MIDIEndpointRef endpoint, SInt32 advance_schedule_time); 00062 00063 public: 00064 00065 JackCoreMidiOutputPort(double time_ratio, size_t max_bytes=4096, 00066 size_t max_messages=1024); 00067 00068 virtual 00069 ~JackCoreMidiOutputPort(); 00070 00071 bool 00072 Execute(); 00073 00074 bool 00075 Init(); 00076 00077 void 00078 ProcessJack(JackMidiBuffer *port_buffer, jack_nframes_t frames); 00079 00080 bool 00081 Start(); 00082 00083 bool 00084 Stop(); 00085 00086 }; 00087 00088 } 00089 00090 #endif