common/JackNetDriver.h

   1 /*
   2 Copyright (C) 2001 Paul Davis
   3 Copyright (C) 2008 Romain Moret at Grame
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18
  19 */
  20
  21 #ifndef __JackNetDriver__
  22 #define __JackNetDriver__
  23
  24 #include "JackAudioDriver.h"
  25 #include "JackNetInterface.h"
  26
  27 #ifdef JACK_MONITOR
  28 #include "JackFrameTimer.h"
  29 #endif
  30
  31 namespace Jack
  32 {
  33     /**
  34     \Brief This class describes the Net Backend
  35     */
  36
  37     class JackNetDriver : public JackAudioDriver, public JackNetSlaveInterface
  38     {
  39         private:
  40             //jack data
  41             jack_port_id_t* fMidiCapturePortList;
  42             jack_port_id_t* fMidiPlaybackPortList;
  43
  44             //transport
  45             int fLastTransportState;
  46             int fLastTimebaseMaster;
  47
  48             //monitoring
  49         #ifdef JACK_MONITOR
  50             JackGnuPlotMonitor<float>* fNetTimeMon;
  51             jack_time_t fRcvSyncUst;
  52         #endif
  53
  54             bool Initialize();
  55             void FreeAll();
  56
  57             int AllocPorts();
  58             int FreePorts();
  59
  60             //transport
  61             void EncodeTransportData();
  62             void DecodeTransportData();
  63
  64             JackMidiBuffer* GetMidiInputBuffer ( int port_index );
  65             JackMidiBuffer* GetMidiOutputBuffer ( int port_index );
  66
  67         public:
  68             JackNetDriver ( const char* name, const char* alias, JackLockedEngine* engine, JackSynchro* table,
  69                             const char* ip, int port, int mtu, int midi_input_ports, int midi_output_ports,
  70                             char* net_name, uint transport_sync, char network_master_mode );
  71             ~JackNetDriver();
  72
  73             int Open ( jack_nframes_t frames_per_cycle, jack_nframes_t rate, bool capturing, bool playing,
  74                        int inchannels, int outchannels, bool monitor, const char* capture_driver_name,
  75                        const char* playback_driver_name, jack_nframes_t capture_latency, jack_nframes_t playback_latency );
  76             int Close();
  77
  78             int Attach();
  79             int Detach();
  80
  81             int Read();
  82             int Write();
  83
  84             // BufferSize can't be changed
  85             bool IsFixedBufferSize()
  86             {
  87                 return true;
  88             }
  89
  90             int SetBufferSize ( jack_nframes_t buffer_size )
  91             {
  92                 return -1;
  93             }
  94
  95             int SetSampleRate ( jack_nframes_t sample_rate )
  96             {
  97                 return -1;
  98             }
  99
 100     };
 101 }
 102
 103 #endif