517 lines
16 KiB
C++
517 lines
16 KiB
C++
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#include "jack.hxx"
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#include <sstream>
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#include <cstring>
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#include <iostream>
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#include "audiobuffer.hxx"
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#include "eventhandler.hxx"
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#include "controller/guicontroller.hxx"
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#include "controller/genericmidi.hxx"
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#include "controller/apc.hxx"
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using namespace std;
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int AudioBuffer::privateID = 0;
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// static pointer from main.
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extern Jack* jack;
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extern int jackSamplerate;
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Jack::Jack() :
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client( jack_client_open ( "Luppp", JackNullOption , 0 , 0 ) ),
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state( new State() ),
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controllerUpdater( new ControllerUpdater() ),
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clientActive(false)
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{
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jack = this;
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// construct Observer classes here, not in the initializer list as the Jack*
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// will be 0x0 until then.
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timeManager = new TimeManager(),
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metronome = new Metronome();
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logic = new Logic();
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gridLogic = new GridLogic();
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buffers.nframes = jack_get_buffer_size( client );
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buffers.samplerate = jack_get_sample_rate( client );
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EventSamplerate e(buffers.samplerate);
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writeToGuiRingbuffer( &e );
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uiUpdateCounter = buffers.samplerate / 30;
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uiUpdateConstant = buffers.samplerate / 30;
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masterInput = jack_port_register( client,
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"master_in",
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JACK_DEFAULT_AUDIO_TYPE,
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JackPortIsInput,
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0 );
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masterReturnL = jack_port_register( client,
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"master_return_left",
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JACK_DEFAULT_AUDIO_TYPE,
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JackPortIsInput,
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0 );
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masterReturnR = jack_port_register( client,
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"master_return_right",
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JACK_DEFAULT_AUDIO_TYPE,
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JackPortIsInput,
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0 );
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masterOutputL = jack_port_register( client,
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"master_left",
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JACK_DEFAULT_AUDIO_TYPE,
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JackPortIsOutput,
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0 );
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masterOutputR = jack_port_register( client,
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"master_right",
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JACK_DEFAULT_AUDIO_TYPE,
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JackPortIsOutput,
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0 );
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sendOutput = jack_port_register( client,
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"send_out",
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JACK_DEFAULT_AUDIO_TYPE,
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JackPortIsOutput,
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0 );
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sidechainKeyOutput= jack_port_register( client,
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"sidechain_key",
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JACK_DEFAULT_AUDIO_TYPE,
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JackPortIsOutput,
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0 );
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sidechainSignalOutput= jack_port_register( client,
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"sidechain_signal",
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JACK_DEFAULT_AUDIO_TYPE,
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JackPortIsOutput,
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0 );
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masterMidiInput = jack_port_register( client,
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"midi_in",
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JACK_DEFAULT_MIDI_TYPE,
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JackPortIsInput,
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0 );
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masterVol = 0.0f;
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/// prepare internal buffers
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buffers.audio[Buffers::SEND] = new float[ buffers.nframes ];
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buffers.audio[Buffers::SIDECHAIN_KEY] = new float[ buffers.nframes ];
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buffers.audio[Buffers::SIDECHAIN_SIGNAL]=new float[ buffers.nframes ];
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buffers.audio[Buffers::MASTER_OUT_L] = new float[ buffers.nframes ];
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buffers.audio[Buffers::MASTER_OUT_R] = new float[ buffers.nframes ];
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for(int i = 0; i < NTRACKS; i++)
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{
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loopers.push_back( new Looper(i) );
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trackOutputs.push_back( new TrackOutput(i, loopers.back() ) );
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buffers.audio[Buffers::TRACK_0 + i] = new float[ buffers.nframes ];
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timeManager->registerObserver( loopers.back() );
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}
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/// setup DSP instances
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inputVol = 1.0f;
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masterVol = 0.75f;
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masterMeter = new DBMeter( buffers.samplerate );
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inputMeter = new DBMeter( buffers.samplerate );
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/// setup JACK callbacks
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if ( jack_set_process_callback( client,
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static_process,
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static_cast<void*>(this)) )
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{
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LUPPP_ERROR("%s","Error setting process callback");
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}
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if ( jack_set_timebase_callback(client,
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0,
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(JackTimebaseCallback)static_timebase,
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static_cast<void*>(this)) )
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{
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LUPPP_ERROR("%s","Error setting timebase callback");
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}
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}
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Jack::~Jack()
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{
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delete timeManager;
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delete metronome;
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delete state;
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delete logic;
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delete gridLogic;
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delete controllerUpdater;
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delete inputMeter;
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delete masterMeter;
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}
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void Jack::activate()
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{
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Controller* c = new AkaiAPC();
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Controller* m = new GenericMIDI();
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Controller* g = new LupppGUI();
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if ( !c || !m || !g )
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{
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LUPPP_WARN("%s","Error creating Controller subclass instance");
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}
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jack_activate( client );
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jack_transport_start(client);
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}
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void Jack::quit()
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{
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jack_deactivate( client );
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jack_client_close( client );
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LUPPP_NOTE("%s","Quit JACK.");
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}
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TrackOutput* Jack::getTrackOutput(int t)
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{
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if ( t >= 0 && t < NTRACKS )
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return trackOutputs.at(t);
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#ifdef DEBUG_TRACKS
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else
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{
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printf( "Jack::getTrackOutput() returning 0x0: invalid track requested!\n" );
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}
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#endif
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return 0;
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}
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Looper* Jack::getLooper(int t)
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{
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if ( t >= 0 && t < NTRACKS )
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return loopers.at(t);
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#ifdef DEBUG_TRACKS
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else
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{
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printf( "Jack::getLooper() returning 0x0: invalid track requested!\n" );
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}
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#endif
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return 0;
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}
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void Jack::registerMidiObserver( MidiObserver* mo, std::string name )
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{
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LUPPP_NOTE("%s: %s","Jack::registerMidiObserver() ", name.c_str() );
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// register the observer
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midiObservers.push_back( mo );
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//set the index of the MIDI controller port on the MidiObserver
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midiObservers.back()->port( midiObservers.size() - 1 );
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// register new MIDI I/O ports for this controller
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stringstream s;
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s << name << "_in";
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jack_port_t* tmp = jack_port_register(client,
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s.str().c_str(),
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JACK_DEFAULT_MIDI_TYPE,
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JackPortIsInput,
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0 );
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midiObserverInputBuffers.push_back( 0 );
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midiObserverInputPorts.push_back( tmp );
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stringstream s2;
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s2 << name << "_out";
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tmp = jack_port_register( client,
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s2.str().c_str(),
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JACK_DEFAULT_MIDI_TYPE,
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JackPortIsOutput,
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0 );
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midiObserverOutputBuffers.push_back( 0 );
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midiObserverOutputPorts.push_back( tmp );
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}
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void Jack::unregisterMidiObserver( MidiObserver* mo )
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{
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cout << "Jack::unregisterMidiObserver()" << endl;
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// remove MIDI I/O ports
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jack_port_unregister(client, midiObserverInputPorts .at( mo->port() ) );
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jack_port_unregister(client, midiObserverOutputPorts.at( mo->port() ) );
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/* // indeces for other instances can't change!
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midiObserverInputBuffers.push_back( 0 );
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midiObserverInputPorts.push_back( tmp );
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midiObserverOutputBuffers.push_back( 0 );
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midiObserverOutputPorts.push_back( tmp );
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*/
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// unregister the observer
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//midiObservers.push_back( mo );
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}
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int Jack::process (jack_nframes_t nframes)
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{
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/// get buffers
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buffers.audio[Buffers::MASTER_INPUT] = (float*)jack_port_get_buffer( masterInput , nframes );
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buffers.audio[Buffers::MASTER_RETURN_L] = (float*)jack_port_get_buffer( masterReturnL , nframes );
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buffers.audio[Buffers::MASTER_RETURN_R] = (float*)jack_port_get_buffer( masterReturnR , nframes );
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buffers.audio[Buffers::JACK_SEND_OUT] = (float*)jack_port_get_buffer( sendOutput , nframes );
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buffers.audio[Buffers::JACK_MASTER_OUT_L] = (float*)jack_port_get_buffer( masterOutputL , nframes );
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buffers.audio[Buffers::JACK_MASTER_OUT_R] = (float*)jack_port_get_buffer( masterOutputR , nframes );
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buffers.audio[Buffers::JACK_SIDECHAIN_KEY] = (float*)jack_port_get_buffer(sidechainKeyOutput,nframes);
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buffers.audio[Buffers::JACK_SIDECHAIN_SIGNAL]=(float*)jack_port_get_buffer(sidechainSignalOutput,nframes);
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buffers.midi [Buffers::MASTER_MIDI_INPUT] = (void*) jack_port_get_buffer( masterMidiInput, nframes );
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memset( buffers.audio[Buffers::JACK_MASTER_OUT_L] , 0, sizeof(float) * nframes );
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memset( buffers.audio[Buffers::JACK_MASTER_OUT_R] , 0, sizeof(float) * nframes );
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memset( buffers.audio[Buffers::MASTER_OUT_L] , 0, sizeof(float) * nframes );
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memset( buffers.audio[Buffers::MASTER_OUT_R] , 0, sizeof(float) * nframes );
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memset( buffers.audio[Buffers::SEND] , 0, sizeof(float) * nframes );
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memset( buffers.audio[Buffers::SIDECHAIN_KEY] , 0, sizeof(float) * nframes );
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memset( buffers.audio[Buffers::SIDECHAIN_SIGNAL] , 0, sizeof(float) * nframes );
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/// do events from the ringbuffer
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handleDspEvents();
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/// process incoming MIDI
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jack_midi_event_t in_event;
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int masterMidiInputIndex = 0;
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int event_count = (int) jack_midi_get_event_count( buffers.midi[Buffers::MASTER_MIDI_INPUT] );
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while ( masterMidiInputIndex < event_count )
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{
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jack_midi_event_get(&in_event, buffers.midi[Buffers::MASTER_MIDI_INPUT], masterMidiInputIndex);
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char buffer [50];
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//sprintf (buffer, "MIDI %i %i %i", int(in_event.buffer[0]), int(in_event.buffer[1]), int(in_event.buffer[2]) );
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EventGuiPrint e( buffer );
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writeToGuiRingbuffer( &e );
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masterMidiInputIndex++;
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}
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/// process each MidiObserver registered MIDI port
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for(unsigned int i = 0; i < midiObservers.size(); i++ )
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{
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midiObserverInputBuffers.at( i ) =
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(void*) jack_port_get_buffer( midiObserverInputPorts.at(i), nframes );
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midiObserverOutputBuffers.at( i ) =
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(void*) jack_port_get_buffer( midiObserverOutputPorts.at(i), nframes );
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jack_midi_clear_buffer( midiObserverOutputBuffers.at( i ) );
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jack_midi_event_t in_event;
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int index = 0;
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int event_count = (int) jack_midi_get_event_count( midiObserverInputBuffers.at( i ) );
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while ( index < event_count )
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{
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jack_midi_event_get(&in_event, midiObserverInputBuffers.at( i ), index);
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midiObservers.at(i)->midi( (unsigned char*) &in_event.buffer[0] );
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//printf( "%s MIDI %i %i %i\n", midiObservers.at(i)->getName().c_str(), int(in_event.buffer[0]), int(in_event.buffer[1]), int(in_event.buffer[2]) );
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index++;
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}
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}
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/// process each track, starting at output and working up signal path
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for(unsigned int i = 0; i < NTRACKS; i++)
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{
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trackOutputs.at(i)->process( nframes, &buffers );
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}
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/// metro signal
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metronome->process( nframes, &buffers );
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/// mix input, reverb & post-sidechain in
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for(unsigned int i = 0; i < buffers.nframes; i++)
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{
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float input= buffers.audio[Buffers::MASTER_INPUT][i] * inputVol;
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float L = buffers.audio[Buffers::MASTER_OUT_L][i];
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float R = buffers.audio[Buffers::MASTER_OUT_R][i];
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float returnL = buffers.audio[Buffers::MASTER_RETURN_L][i];
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float returnR = buffers.audio[Buffers::MASTER_RETURN_R][i];
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if ( inputToMixEnable )
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{
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// if sending to mix, scale by volume *and* by XSide send
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float tmp = input * inputToMixVol * (1-inputToXSideVol);
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L += tmp;
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R += tmp;
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}
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if ( inputToSendEnable )
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{
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// post-mix-send amount: hence * inputToMixVol
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buffers.audio[Buffers::SEND][i] += input * inputToSendVol * inputToMixVol;
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}
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if ( inputToKeyEnable )
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{
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buffers.audio[Buffers::SIDECHAIN_KEY][i] += input;
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}
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buffers.audio[Buffers::SIDECHAIN_SIGNAL][i] += input * inputToXSideVol;
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/// mixdown returns into master buffers
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buffers.audio[Buffers::MASTER_OUT_L][i] = (L + returnL) * masterVol;
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buffers.audio[Buffers::MASTER_OUT_R][i] = (R + returnR) * masterVol;
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/// write SEND content to JACK port
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buffers.audio[Buffers::JACK_SEND_OUT][i] = buffers.audio[Buffers::SEND][i];
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buffers.audio[Buffers::JACK_SIDECHAIN_KEY][i] = buffers.audio[Buffers::SIDECHAIN_KEY][i];
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buffers.audio[Buffers::JACK_SIDECHAIN_SIGNAL][i] = buffers.audio[Buffers::SIDECHAIN_SIGNAL][i];
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}
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/// db meter on master input & output
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inputMeter->process( nframes, buffers.audio[Buffers::MASTER_INPUT], buffers.audio[Buffers::MASTER_INPUT]);
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masterMeter->process(nframes, buffers.audio[Buffers::MASTER_OUT_L], buffers.audio[Buffers::MASTER_OUT_R] );
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if ( uiUpdateCounter > uiUpdateConstant )
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{
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// instead of scaling whole buffer, just scale output by vol
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EventTrackSignalLevel e(-1, masterMeter->getLeftDB(), masterMeter->getRightDB() );
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writeToGuiRingbuffer( &e );
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EventTrackSignalLevel e2(-2, inputMeter->getLeftDB() * inputVol, inputMeter->getRightDB() * inputVol );
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writeToGuiRingbuffer( &e2 );
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uiUpdateCounter = 0;
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}
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uiUpdateCounter += nframes;
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// memcpy the internal MASTER_OUTPUT buffer to the JACK_MASTER_OUTPUT
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memcpy( buffers.audio[Buffers::JACK_MASTER_OUT_L],
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buffers.audio[Buffers::MASTER_OUT_L],
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sizeof(float)*nframes);
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memcpy( buffers.audio[Buffers::JACK_MASTER_OUT_R],
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buffers.audio[Buffers::MASTER_OUT_R],
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//buffers.audio[Buffers::POST_SIDECHAIN],
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//buffers.audio[Buffers::SEND], // uncomment to listen to reverb send only
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sizeof(float)*nframes);
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return false;
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}
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void Jack::masterVolume(float vol)
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{
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masterVol = vol;
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}
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void Jack::inputVolume(float v)
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{
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inputVol = v * 2;
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}
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void Jack::inputTo(INPUT_TO to, float v)
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{
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switch ( to )
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{
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case INPUT_TO_MIX:
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inputToMixVol = v;
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break;
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case INPUT_TO_SEND:
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inputToSendVol = v;
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break;
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case INPUT_TO_XSIDE:
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inputToXSideVol = v;
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break;
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default:
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break;
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}
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}
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void Jack::inputToActive(INPUT_TO to, bool a)
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{
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switch ( to )
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{
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case INPUT_TO_MIX:
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inputToMixEnable = a;
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break;
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case INPUT_TO_SEND:
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inputToSendEnable = a;
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break;
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case INPUT_TO_SIDE_KEY:
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inputToKeyEnable = a;
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break;
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default:
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break;
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}
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}
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int Jack::getBuffersize()
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{
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return jack_get_buffer_size( client );
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}
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int Jack::getSamplerate()
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{
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return jack_get_sample_rate( client );
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}
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void Jack::midiObserverWriteMIDI( int portIndex, unsigned char* data )
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{
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// FIXME: MIDI output needs a QUEUE structure, so we can send more data to the APC "at once"
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void* portBuffer = midiObserverOutputBuffers.at(portIndex);
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unsigned char* buf = jack_midi_event_reserve( portBuffer, 0, 3);
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if( buf != 0 )
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{
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memcpy( buf, data, sizeof( unsigned char ) * 3);
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#ifdef DEBUG_MIDI
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cout << "midiObserverWriteMIDI portID " << portIndex << " " << int(buf[0]) << ", " << int(buf[1]) << ", " << int(buf[2]) << endl;
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#endif
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}
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else
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{
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EventGuiPrint e( "Jack::writeApcOutput(): Buffer full!" );
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writeToGuiRingbuffer( &e );
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}
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}
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int Jack::timebase(jack_transport_state_t state,
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jack_nframes_t nframes,
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jack_position_t* pos,
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int newPos)
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{
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// fill buffers with data, then pass to timeManager
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buffers.transportFrame = jack_get_current_transport_frame(client);
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buffers.transportPosition = pos;
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buffers.transportState =&state;
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// update "time" from JACK master, or write master?
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timeManager->process( &buffers );
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return 0;
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}
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int Jack::static_process(jack_nframes_t nframes, void *instance)
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{
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return static_cast<Jack*>(instance)->process(nframes);
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}
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int Jack::static_timebase(jack_transport_state_t state,
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jack_nframes_t nframes,
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jack_position_t* pos,
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int newPos,
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void* instance)
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{
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return static_cast<Jack*>(instance)->timebase(state,nframes, pos, newPos );
|
|
}
|