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Carla/source/backend/engine/CarlaEngineJack.cpp

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  1. /*

  2.  * Carla JACK Engine

  3.  * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>

  4.  *

  5.  * This program is free software; you can redistribute it and/or

  6.  * modify it under the terms of the GNU General Public License as

  7.  * published by the Free Software Foundation; either version 2 of

  8.  * the License, or 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.  * For a full copy of the GNU General Public License see the GPL.txt file

  16.  */

  17. 

  18. #include "CarlaEngineInternal.hpp"

  19. #include "CarlaBackendUtils.hpp"

  20. #include "CarlaMIDI.h"

  21. 

  22. #ifdef JACKBRIDGE_EXPORT

  23. # include "jackbridge/JackBridge.hpp"

  24. #else

  25. # include "jackbridge/JackBridge1.cpp"

  26. # include "jackbridge/JackBridge2.cpp"

  27. #endif

  28. 

  29. #include <cmath>

  30. #include <QtCore/QStringList>

  31. 

  32. #define URI_CANVAS_ICON "http://kxstudio.sf.net/ns/canvas/icon"

  33. 

  34. CARLA_BACKEND_START_NAMESPACE

  35. 

  36. #if 0

  37. } // Fix editor indentation

  38. #endif

  39. 

  40. // -------------------------------------------------------------------------------------------------------------------

  41. // Fallback data

  42. 

  43. static const EngineEvent kFallbackJackEngineEvent;

  44. 

  45. // -------------------------------------------------------------------------------------------------------------------

  46. // Plugin Helpers, defined in CarlaPlugin.cpp

  47. 

  48. extern CarlaEngine*          CarlaPluginGetEngine(CarlaPlugin* const plugin);

  49. extern CarlaEngineClient*    CarlaPluginGetEngineClient(CarlaPlugin* const plugin);

  50. extern CarlaEngineAudioPort* CarlaPluginGetAudioInPort(CarlaPlugin* const plugin, uint32_t index);

  51. extern CarlaEngineAudioPort* CarlaPluginGetAudioOutPort(CarlaPlugin* const plugin, uint32_t index);

  52. 

  53. // -------------------------------------------------------------------------------------------------------------------

  54. // Carla Engine JACK-Audio port

  55. 

  56. class CarlaEngineJackAudioPort : public CarlaEngineAudioPort

  57. {

  58. public:

  59.     CarlaEngineJackAudioPort(const bool isInput, const ProcessMode processMode, jack_client_t* const client, jack_port_t* const port)

  60.         : CarlaEngineAudioPort(isInput, processMode),

  61.           kClient(client),

  62.           kPort(port)

  63.     {

  64.         carla_debug("CarlaEngineJackAudioPort::CarlaEngineJackAudioPort(%s, %s, %p, %p)", bool2str(isInput), ProcessMode2Str(processMode), client, port);

  65. 

  66.         if (processMode == PROCESS_MODE_SINGLE_CLIENT || processMode == PROCESS_MODE_MULTIPLE_CLIENTS)

  67.         {

  68.             CARLA_ASSERT(client != nullptr && port != nullptr);

  69.         }

  70.         else

  71.         {

  72.             CARLA_ASSERT(client == nullptr && port == nullptr);

  73.         }

  74.     }

  75. 

  76.     ~CarlaEngineJackAudioPort() override

  77.     {

  78.         carla_debug("CarlaEngineJackAudioPort::~CarlaEngineJackAudioPort()");

  79. 

  80.         if (kClient != nullptr && kPort != nullptr)

  81.             jackbridge_port_unregister(kClient, kPort);

  82.     }

  83. 

  84.     void initBuffer(CarlaEngine* const engine) override

  85.     {

  86.         CARLA_ASSERT(engine != nullptr);

  87. 

  88.         if (engine == nullptr)

  89.             return;

  90. 

  91.         if (kPort == nullptr)

  92.             return CarlaEngineAudioPort::initBuffer(engine);

  93. 

  94.         const uint32_t bufferSize(engine->getBufferSize());

  95. 

  96.         fBuffer = (float*)jackbridge_port_get_buffer(kPort, bufferSize);

  97. 

  98.         if (! kIsInput)

  99.            carla_zeroFloat(fBuffer, bufferSize);

  100.     }

  101. 

  102. private:

  103.     jack_client_t* const kClient;

  104.     jack_port_t*   const kPort;

  105. 

  106.     friend class CarlaEngineJack;

  107. 

  108.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineJackAudioPort)

  109. };

  110. 

  111. // -------------------------------------------------------------------------------------------------------------------

  112. // Carla Engine JACK-CV port

  113. 

  114. class CarlaEngineJackCVPort : public CarlaEngineCVPort

  115. {

  116. public:

  117.     CarlaEngineJackCVPort(const bool isInput, const ProcessMode processMode, const uint32_t bufferSize, jack_client_t* const client, jack_port_t* const port)

  118.         : CarlaEngineCVPort(isInput, processMode, bufferSize),

  119.           kClient(client),

  120.           kPort(port)

  121.     {

  122.         carla_debug("CarlaEngineJackCVPort::CarlaEngineJackCVPort(%s, %s, %p, %p)", bool2str(isInput), ProcessMode2Str(processMode), client, port);

  123. 

  124.         if (processMode == PROCESS_MODE_SINGLE_CLIENT || processMode == PROCESS_MODE_MULTIPLE_CLIENTS)

  125.         {

  126.             CARLA_ASSERT(client != nullptr && port != nullptr);

  127.         }

  128.         else

  129.         {

  130.             CARLA_ASSERT(client == nullptr && port == nullptr);

  131.         }

  132.     }

  133. 

  134.     ~CarlaEngineJackCVPort() override

  135.     {

  136.         carla_debug("CarlaEngineJackCVPort::~CarlaEngineJackCVPort()");

  137. 

  138.         if (kClient != nullptr && kPort != nullptr)

  139.             jackbridge_port_unregister(kClient, kPort);

  140.     }

  141. 

  142.     void initBuffer(CarlaEngine* const engine) override

  143.     {

  144.         CARLA_ASSERT(engine != nullptr);

  145. 

  146.         if (engine == nullptr)

  147.             return;

  148. 

  149.         if (kPort == nullptr)

  150.             return CarlaEngineCVPort::initBuffer(engine);

  151. 

  152.         CARLA_ASSERT(engine->getBufferSize() == fBufferSize);

  153. 

  154.         if (kIsInput)

  155.         {

  156.             float* const jackBuffer = (float*)jackbridge_port_get_buffer(kPort, fBufferSize);

  157.             carla_copyFloat(fBuffer, jackBuffer, fBufferSize);

  158.         }

  159.         else

  160.         {

  161.             carla_zeroFloat(fBuffer, fBufferSize);

  162.         }

  163.     }

  164. 

  165.     void writeBuffer(CarlaEngine* const engine) override

  166.     {

  167.         CARLA_ASSERT(! kIsInput);

  168.         CARLA_ASSERT(engine != nullptr);

  169. 

  170.         if (kIsInput)

  171.             return;

  172.         if (engine == nullptr)

  173.             return;

  174. 

  175.         CARLA_ASSERT(engine->getBufferSize() == fBufferSize);

  176. 

  177.         float* const jackBuffer = (float*)jackbridge_port_get_buffer(kPort, fBufferSize);

  178.         carla_copyFloat(jackBuffer, fBuffer, fBufferSize);

  179.     }

  180. 

  181. private:

  182.     jack_client_t* const kClient;

  183.     jack_port_t*   const kPort;

  184. 

  185.     friend class CarlaEngineJack;

  186. 

  187.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineJackCVPort)

  188. };

  189. 

  190. // -------------------------------------------------------------------------------------------------------------------

  191. // Carla Engine JACK-Event port

  192. 

  193. class CarlaEngineJackEventPort : public CarlaEngineEventPort

  194. {

  195. public:

  196.     CarlaEngineJackEventPort(const bool isInput, const ProcessMode processMode, jack_client_t* const client, jack_port_t* const port)

  197.         : CarlaEngineEventPort(isInput, processMode),

  198.           kClient(client),

  199.           kPort(port),

  200.           fJackBuffer(nullptr)

  201.     {

  202.         carla_debug("CarlaEngineJackEventPort::CarlaEngineJackEventPort(%s, %s, %p, %p)", bool2str(isInput), ProcessMode2Str(processMode), client, port);

  203. 

  204.         if (processMode == PROCESS_MODE_SINGLE_CLIENT || processMode == PROCESS_MODE_MULTIPLE_CLIENTS)

  205.         {

  206.             CARLA_ASSERT(client != nullptr && port != nullptr);

  207.         }

  208.         else

  209.         {

  210.             CARLA_ASSERT(client == nullptr && port == nullptr);

  211.         }

  212.     }

  213. 

  214.     ~CarlaEngineJackEventPort() override

  215.     {

  216.         carla_debug("CarlaEngineJackEventPort::~CarlaEngineJackEventPort()");

  217. 

  218.         if (kClient != nullptr && kPort != nullptr)

  219.             jackbridge_port_unregister(kClient, kPort);

  220.     }

  221. 

  222.     void initBuffer(CarlaEngine* const engine) override

  223.     {

  224.         CARLA_ASSERT(engine != nullptr);

  225. 

  226.         if (engine == nullptr)

  227.             return;

  228. 

  229.         if (kPort == nullptr)

  230.             return CarlaEngineEventPort::initBuffer(engine);

  231. 

  232.         fJackBuffer = jackbridge_port_get_buffer(kPort, engine->getBufferSize());

  233. 

  234.         if (! kIsInput)

  235.             jackbridge_midi_clear_buffer(fJackBuffer);

  236.     }

  237. 

  238.     uint32_t getEventCount() const override

  239.     {

  240.         if (kPort == nullptr)

  241.             return CarlaEngineEventPort::getEventCount();

  242. 

  243.         CARLA_ASSERT(kIsInput);

  244.         CARLA_ASSERT(fJackBuffer != nullptr);

  245. 

  246.         if (! kIsInput)

  247.             return 0;

  248.         if (fJackBuffer == nullptr)

  249.             return 0;

  250. 

  251.         return jackbridge_midi_get_event_count(fJackBuffer);

  252.     }

  253. 

  254.     const EngineEvent& getEvent(const uint32_t index) override

  255.     {

  256.         if (kPort == nullptr)

  257.             return CarlaEngineEventPort::getEvent(index);

  258. 

  259.         CARLA_ASSERT(kIsInput);

  260.         CARLA_ASSERT(fJackBuffer != nullptr);

  261. 

  262.         if (! kIsInput)

  263.             return kFallbackJackEngineEvent;

  264.         if (fJackBuffer == nullptr)

  265.             return kFallbackJackEngineEvent;

  266. 

  267.         jack_midi_event_t jackEvent;

  268.         carla_zeroStruct<jack_midi_event_t>(jackEvent);

  269. 

  270.         if (! jackbridge_midi_event_get(&jackEvent, fJackBuffer, index))

  271.             return kFallbackJackEngineEvent;

  272.         if (jackEvent.size == 0 || jackEvent.size > 4)

  273.             return kFallbackJackEngineEvent;

  274. 

  275.         fRetEvent.clear();

  276. 

  277.         const uint8_t midiStatus  = MIDI_GET_STATUS_FROM_DATA(jackEvent.buffer);

  278.         const uint8_t midiChannel = MIDI_GET_CHANNEL_FROM_DATA(jackEvent.buffer);

  279. 

  280.         fRetEvent.time    = jackEvent.time;

  281.         fRetEvent.channel = midiChannel;

  282. 

  283.         if (MIDI_IS_STATUS_CONTROL_CHANGE(midiStatus))

  284.         {

  285.             CARLA_ASSERT(jackEvent.size == 2 || jackEvent.size == 3);

  286. 

  287.             const uint8_t midiControl = jackEvent.buffer[1];

  288.             fRetEvent.type            = kEngineEventTypeControl;

  289. 

  290.             if (MIDI_IS_CONTROL_BANK_SELECT(midiControl))

  291.             {

  292.                 const uint8_t midiBank = jackEvent.buffer[2];

  293. 

  294.                 fRetEvent.ctrl.type  = kEngineControlEventTypeMidiBank;

  295.                 fRetEvent.ctrl.param = midiBank;

  296.                 fRetEvent.ctrl.value = 0.0f;

  297.             }

  298.             else if (midiControl == MIDI_CONTROL_ALL_SOUND_OFF)

  299.             {

  300.                 fRetEvent.ctrl.type  = kEngineControlEventTypeAllSoundOff;

  301.                 fRetEvent.ctrl.param = 0;

  302.                 fRetEvent.ctrl.value = 0.0f;

  303.             }

  304.             else if (midiControl == MIDI_CONTROL_ALL_NOTES_OFF)

  305.             {

  306.                 fRetEvent.ctrl.type  = kEngineControlEventTypeAllNotesOff;

  307.                 fRetEvent.ctrl.param = 0;

  308.                 fRetEvent.ctrl.value = 0.0f;

  309.             }

  310.             else

  311.             {

  312.                 CARLA_ASSERT(jackEvent.size == 3);

  313. 

  314.                 const uint8_t midiValue = jackEvent.buffer[2];

  315. 

  316.                 fRetEvent.ctrl.type  = kEngineControlEventTypeParameter;

  317.                 fRetEvent.ctrl.param = midiControl;

  318.                 fRetEvent.ctrl.value = float(midiValue)/127.0f;

  319.             }

  320.         }

  321.         else if (MIDI_IS_STATUS_PROGRAM_CHANGE(midiStatus))

  322.         {

  323.             CARLA_ASSERT(jackEvent.size == 2);

  324. 

  325.             const uint8_t midiProgram = jackEvent.buffer[1];

  326.             fRetEvent.type            = kEngineEventTypeControl;

  327. 

  328.             fRetEvent.ctrl.type  = kEngineControlEventTypeMidiProgram;

  329.             fRetEvent.ctrl.param = midiProgram;

  330.             fRetEvent.ctrl.value = 0.0f;

  331.         }

  332.         else

  333.         {

  334.             fRetEvent.type = kEngineEventTypeMidi;

  335.             fRetEvent.midi.data[0] = midiStatus;

  336.             fRetEvent.midi.size    = static_cast<uint8_t>(jackEvent.size);

  337. 

  338.             if (jackEvent.size > 1)

  339.                 carla_copy<uint8_t>(fRetEvent.midi.data+1, jackEvent.buffer+1, jackEvent.size-1);

  340.         }

  341. 

  342.         return fRetEvent;

  343.     }

  344. 

  345.     void writeControlEvent(const uint32_t time, const uint8_t channel, const EngineControlEventType type, const uint16_t param, const float value) override

  346.     {

  347.         if (kPort == nullptr)

  348.             return CarlaEngineEventPort::writeControlEvent(time, channel, type, param, value);

  349. 

  350.         CARLA_ASSERT(! kIsInput);

  351.         CARLA_ASSERT(fJackBuffer != nullptr);

  352.         CARLA_ASSERT(type != kEngineControlEventTypeNull);

  353.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  354.         CARLA_ASSERT(param < MAX_MIDI_VALUE);

  355.         CARLA_SAFE_ASSERT(value >= 0.0f && value <= 1.0f);

  356. 

  357.         if (kIsInput)

  358.             return;

  359.         if (fJackBuffer == nullptr)

  360.             return;

  361.         if (type == kEngineControlEventTypeNull)

  362.             return;

  363.         if (channel >= MAX_MIDI_CHANNELS)

  364.             return;

  365.         if (param >= MAX_MIDI_VALUE)

  366.             return;

  367.         if (type == kEngineControlEventTypeParameter)

  368.         {

  369.             CARLA_ASSERT(! MIDI_IS_CONTROL_BANK_SELECT(param));

  370.         }

  371. 

  372.         const float fixedValue(carla_fixValue<float>(0.0f, 1.0f, value));

  373. 

  374.         size_t size = 0;

  375.         jack_midi_data_t data[4] = { 0 };

  376. 

  377.         switch (type)

  378.         {

  379.         case kEngineControlEventTypeNull:

  380.             break;

  381.         case kEngineControlEventTypeParameter:

  382.             data[0] = MIDI_STATUS_CONTROL_CHANGE + channel;

  383.             data[1] = param;

  384.             data[2] = fixedValue * 127.0f;

  385.             size    = 3;

  386.             break;

  387.         case kEngineControlEventTypeMidiBank:

  388.             data[0] = MIDI_STATUS_CONTROL_CHANGE + channel;

  389.             data[1] = MIDI_CONTROL_BANK_SELECT;

  390.             data[2] = param;

  391.             size    = 3;

  392.             break;

  393.         case kEngineControlEventTypeMidiProgram:

  394.             data[0] = MIDI_STATUS_PROGRAM_CHANGE + channel;

  395.             data[1] = param;

  396.             size    = 2;

  397.             break;

  398.         case kEngineControlEventTypeAllSoundOff:

  399.             data[0] = MIDI_STATUS_CONTROL_CHANGE + channel;

  400.             data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  401.             data[2] = 0;

  402.             size    = 3;

  403.             break;

  404.         case kEngineControlEventTypeAllNotesOff:

  405.             data[0] = MIDI_STATUS_CONTROL_CHANGE + channel;

  406.             data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  407.             data[2] = 0;

  408.             size    = 3;

  409.             break;

  410.         }

  411. 

  412.         if (size > 0)

  413.             jackbridge_midi_event_write(fJackBuffer, time, data, size);

  414.     }

  415. 

  416.     void writeMidiEvent(const uint32_t time, const uint8_t channel, const uint8_t port, const uint8_t* const data, const uint8_t size) override

  417.     {

  418.         if (kPort == nullptr)

  419.             return CarlaEngineEventPort::writeMidiEvent(time, channel, port, data, size);

  420. 

  421.         CARLA_ASSERT(! kIsInput);

  422.         CARLA_ASSERT(fJackBuffer != nullptr);

  423.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  424.         CARLA_ASSERT(data != nullptr);

  425.         CARLA_ASSERT(size != 0);

  426. 

  427.         if (kIsInput)

  428.             return;

  429.         if (fJackBuffer == nullptr)

  430.             return;

  431.         if (channel >= MAX_MIDI_CHANNELS)

  432.             return;

  433.         if (data == nullptr)

  434.             return;

  435.         if (size == 0)

  436.             return;

  437. 

  438.         uint8_t jdata[size];

  439.         carla_copy<uint8_t>(jdata, data, size);

  440. 

  441.         jdata[0] = MIDI_GET_STATUS_FROM_DATA(data) + channel;

  442. 

  443.         jackbridge_midi_event_write(fJackBuffer, time, jdata, size);

  444.     }

  445. 

  446. private:

  447.     jack_client_t* const kClient;

  448.     jack_port_t*   const kPort;

  449. 

  450.     void*       fJackBuffer;

  451.     EngineEvent fRetEvent;

  452. 

  453.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineJackEventPort)

  454. };

  455. 

  456. // -------------------------------------------------------------------------------------------------------------------

  457. // Jack Engine client

  458. 

  459. class CarlaEngineJackClient : public CarlaEngineClient

  460. {

  461. public:

  462.     CarlaEngineJackClient(const CarlaEngine& engine, jack_client_t* const client)

  463.         : CarlaEngineClient(engine),

  464.           kClient(client),

  465.           kUseClient(engine.getProccessMode() == PROCESS_MODE_SINGLE_CLIENT || engine.getProccessMode() == PROCESS_MODE_MULTIPLE_CLIENTS)

  466.     {

  467.         carla_debug("CarlaEngineJackClient::CarlaEngineJackClient(name:\"%s\", %p)", engine.getName(), client);

  468. 

  469.         if (kUseClient)

  470.         {

  471.             CARLA_ASSERT(kClient != nullptr);

  472.         }

  473.         else

  474.         {

  475.             CARLA_ASSERT(kClient == nullptr);

  476.         }

  477.     }

  478. 

  479.     ~CarlaEngineJackClient() override

  480.     {

  481.         carla_debug("CarlaEngineClient::~CarlaEngineClient()");

  482. 

  483.         if (kEngine.getProccessMode() == PROCESS_MODE_MULTIPLE_CLIENTS && kClient != nullptr)

  484.             jackbridge_client_close(kClient);

  485.     }

  486. 

  487.     void activate() override

  488.     {

  489.         carla_debug("CarlaEngineJackClient::activate()");

  490. 

  491.         if (kEngine.getProccessMode() == PROCESS_MODE_MULTIPLE_CLIENTS)

  492.         {

  493.             CARLA_ASSERT(kClient != nullptr && ! fActive);

  494. 

  495.             if (kClient != nullptr && ! fActive)

  496.                 jackbridge_activate(kClient);

  497.         }

  498. 

  499.         CarlaEngineClient::activate();

  500.     }

  501. 

  502.     void deactivate() override

  503.     {

  504.         carla_debug("CarlaEngineJackClient::deactivate()");

  505. 

  506.         if (kEngine.getProccessMode() == PROCESS_MODE_MULTIPLE_CLIENTS)

  507.         {

  508.             CARLA_ASSERT(kClient != nullptr && fActive);

  509. 

  510.             if (kClient != nullptr && fActive)

  511.                 jackbridge_deactivate(kClient);

  512.         }

  513. 

  514.         CarlaEngineClient::deactivate();

  515.     }

  516. 

  517.     bool isOk() const override

  518.     {

  519.         carla_debug("CarlaEngineJackClient::isOk()");

  520. 

  521.         if (kUseClient)

  522.             return (kClient != nullptr);

  523. 

  524.         return CarlaEngineClient::isOk();

  525.     }

  526. 

  527. #if 0

  528.     void setLatency(const uint32_t samples) override

  529.     {

  530.         CarlaEngineClient::setLatency(samples);

  531. 

  532.         if (kUseClient)

  533.             jackbridge_recompute_total_latencies(kClient);

  534.     }

  535. #endif

  536. 

  537.     CarlaEnginePort* addPort(const EnginePortType portType, const char* const name, const bool isInput) override

  538.     {

  539.         carla_debug("CarlaEngineJackClient::addPort(%s, \"%s\", %s)", EnginePortType2Str(portType), name, bool2str(isInput));

  540. 

  541.         jack_port_t* port = nullptr;

  542. 

  543.         // Create JACK port first, if needed

  544.         if (kUseClient)

  545.         {

  546.             switch (portType)

  547.             {

  548.             case kEnginePortTypeNull:

  549.                 break;

  550.             case kEnginePortTypeAudio:

  551.                 port = jackbridge_port_register(kClient, name, JACK_DEFAULT_AUDIO_TYPE, isInput ? JackPortIsInput : JackPortIsOutput, 0);

  552.                 break;

  553.             case kEnginePortTypeCV:

  554.                 port = jackbridge_port_register(kClient, name, JACK_DEFAULT_AUDIO_TYPE, JackPortIsControlVoltage | (isInput ? JackPortIsInput : JackPortIsOutput), 0);

  555.                 break;

  556.             case kEnginePortTypeEvent:

  557.                 port = jackbridge_port_register(kClient, name, JACK_DEFAULT_MIDI_TYPE, isInput ? JackPortIsInput : JackPortIsOutput, 0);

  558.                 break;

  559.             }

  560.         }

  561. 

  562.         // Create Engine port

  563.         switch (portType)

  564.         {

  565.         case kEnginePortTypeNull:

  566.             break;

  567.         case kEnginePortTypeAudio:

  568.             return new CarlaEngineJackAudioPort(isInput, kEngine.getProccessMode(), kClient, port);

  569.         case kEnginePortTypeCV:

  570.             return new CarlaEngineJackCVPort(isInput, kEngine.getProccessMode(), kEngine.getBufferSize(), kClient, port);

  571.         case kEnginePortTypeEvent:

  572.             return new CarlaEngineJackEventPort(isInput, kEngine.getProccessMode(), kClient, port);

  573.         }

  574. 

  575.         carla_stderr("CarlaEngineJackClient::addPort(%s, \"%s\", %s) - invalid type", EnginePortType2Str(portType), name, bool2str(isInput));

  576.         return nullptr;

  577.     }

  578. 

  579. private:

  580.     jack_client_t* const kClient;

  581.     const bool           kUseClient;

  582. 

  583.     friend class CarlaEngineJack;

  584.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineJackClient)

  585. };

  586. 

  587. // -------------------------------------------------------------------------------------------------------------------

  588. // Jack Engine

  589. 

  590. class CarlaEngineJack : public CarlaEngine

  591. {

  592. public:

  593.     CarlaEngineJack()

  594.         : CarlaEngine(),

  595.           fClient(nullptr),

  596.           fTransportState(JackTransportStopped),

  597.           fFreewheel(false),

  598. #ifdef BUILD_BRIDGE

  599.           fHasQuit(false)

  600. #else

  601. # ifdef CARLA_PROPER_CPP11_SUPPORT

  602.           fRackPorts{nullptr},

  603. # endif

  604.           fLastGroupId(0),

  605.           fLastPortId(0),

  606.           fLastConnectionId(0)

  607. #endif

  608.     {

  609.         carla_debug("CarlaEngineJack::CarlaEngineJack()");

  610. 

  611. #ifdef BUILD_BRIDGE

  612.         fOptions.processMode = PROCESS_MODE_MULTIPLE_CLIENTS;

  613. #else

  614. # ifndef CARLA_PROPER_CPP11_SUPPORT

  615.         carla_fill<jack_port_t*>(fRackPorts, kRackPortCount, nullptr);

  616. # endif

  617. #endif

  618. 

  619.         // FIXME: Always enable JACK transport for now

  620.         fOptions.transportMode = TRANSPORT_MODE_JACK;

  621. 

  622.         carla_zeroStruct<jack_position_t>(fTransportPos);

  623.     }

  624. 

  625.     ~CarlaEngineJack() override

  626.     {

  627.         carla_debug("CarlaEngineJack::~CarlaEngineJack()");

  628.         CARLA_ASSERT(fClient == nullptr);

  629. 

  630. #ifndef BUILD_BRIDGE

  631.         fUsedGroupNames.clear();

  632.         fUsedPortNames.clear();

  633.         fUsedConnections.clear();

  634. #endif

  635.     }

  636. 

  637.     // -------------------------------------------------------------------

  638.     // Maximum values

  639. 

  640.     unsigned int maxClientNameSize() const override

  641.     {

  642.         if (fOptions.processMode == PROCESS_MODE_SINGLE_CLIENT || fOptions.processMode == PROCESS_MODE_MULTIPLE_CLIENTS)

  643.             return static_cast<unsigned int>(jackbridge_client_name_size());

  644. 

  645.         return CarlaEngine::maxClientNameSize();

  646.     }

  647. 

  648.     unsigned int maxPortNameSize() const override

  649.     {

  650.         if (fOptions.processMode == PROCESS_MODE_SINGLE_CLIENT || fOptions.processMode == PROCESS_MODE_MULTIPLE_CLIENTS)

  651.             return static_cast<unsigned int>(jackbridge_port_name_size());

  652. 

  653.         return CarlaEngine::maxPortNameSize();

  654.     }

  655. 

  656.     // -------------------------------------------------------------------

  657.     // Virtual, per-engine type calls

  658. 

  659.     bool init(const char* const clientName) override

  660.     {

  661.         carla_debug("CarlaEngineJack::init(\"%s\")", clientName);

  662. 

  663.         fFreewheel      = false;

  664.         fTransportState = JackTransportStopped;

  665. 

  666.         carla_zeroStruct<jack_position_t>(fTransportPos);

  667. 

  668. #ifndef BUILD_BRIDGE

  669.         fLastGroupId = 0;

  670.         fLastPortId  = 0;

  671.         fLastConnectionId = 0;

  672. 

  673.         fUsedGroupNames.clear();

  674.         fUsedPortNames.clear();

  675.         fUsedConnections.clear();

  676. 

  677.         fClient = jackbridge_client_open(clientName, JackNullOption, nullptr);

  678. 

  679.         if (fClient != nullptr)

  680.         {

  681.             fBufferSize = jackbridge_get_buffer_size(fClient);

  682.             fSampleRate = jackbridge_get_sample_rate(fClient);

  683. 

  684.             jackbridge_custom_publish_data(fClient, URI_CANVAS_ICON, "carla", 6);

  685. 

  686.             jackbridge_set_buffer_size_callback(fClient, carla_jack_bufsize_callback, this);

  687.             jackbridge_set_sample_rate_callback(fClient, carla_jack_srate_callback, this);

  688.             jackbridge_set_freewheel_callback(fClient, carla_jack_freewheel_callback, this);

  689.             jackbridge_set_process_callback(fClient, carla_jack_process_callback, this);

  690.             jackbridge_on_shutdown(fClient, carla_jack_shutdown_callback, this);

  691. # if 0

  692.             jackbridge_set_latency_callback(fClient, carla_jack_latency_callback, this);

  693. # endif

  694. 

  695.             const char* const jackClientName(jackbridge_get_client_name(fClient));

  696. 

  697.             initJackPatchbay(jackClientName);

  698. 

  699.             jackbridge_set_client_registration_callback(fClient, carla_jack_client_registration_callback, this);

  700.             jackbridge_set_port_registration_callback(fClient, carla_jack_port_registration_callback, this);

  701.             jackbridge_set_port_connect_callback(fClient, carla_jack_port_connect_callback, this);

  702.             jackbridge_set_port_rename_callback(fClient, carla_jack_port_rename_callback, this);

  703. 

  704.             if (fOptions.processMode == PROCESS_MODE_CONTINUOUS_RACK)

  705.             {

  706.                 fRackPorts[kRackPortAudioIn1]  = jackbridge_port_register(fClient, "audio-in1",  JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0);

  707.                 fRackPorts[kRackPortAudioIn2]  = jackbridge_port_register(fClient, "audio-in2",  JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0);

  708.                 fRackPorts[kRackPortAudioOut1] = jackbridge_port_register(fClient, "audio-out1", JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);

  709.                 fRackPorts[kRackPortAudioOut2] = jackbridge_port_register(fClient, "audio-out2", JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);

  710.                 fRackPorts[kRackPortEventIn]   = jackbridge_port_register(fClient, "events-in",  JACK_DEFAULT_MIDI_TYPE, JackPortIsInput, 0);

  711.                 fRackPorts[kRackPortEventOut]  = jackbridge_port_register(fClient, "events-out", JACK_DEFAULT_MIDI_TYPE, JackPortIsOutput, 0);

  712.             }

  713. 

  714.             if (jackbridge_activate(fClient))

  715.             {

  716.                 CarlaEngine::init(jackClientName);

  717.                 return true;

  718.             }

  719.             else

  720.             {

  721.                 setLastError("Failed to activate the JACK client");

  722.                 jackbridge_client_close(fClient);

  723.                 fClient = nullptr;

  724.             }

  725.         }

  726.         else

  727.             setLastError("Failed to create new JACK client");

  728. 

  729.         return false;

  730. #else

  731.         if (fBufferSize == 0 || fSampleRate == 0.0)

  732.         {

  733.             // open temp client to get initial buffer-size and sample-rate values

  734.             if (jack_client_t* tmpClient = jackbridge_client_open(clientName, JackNullOption, nullptr))

  735.             {

  736.                 fBufferSize = jackbridge_get_buffer_size(tmpClient);

  737.                 fSampleRate = jackbridge_get_sample_rate(tmpClient);

  738. 

  739.                 jackbridge_client_close(tmpClient);

  740.             }

  741.         }

  742. 

  743.         return CarlaEngine::init(clientName);

  744. #endif

  745.     }

  746. 

  747.     bool close() override

  748.     {

  749.         carla_debug("CarlaEngineJack::close()");

  750.         CarlaEngine::close();

  751. 

  752. #ifdef BUILD_BRIDGE

  753.         fClient  = nullptr;

  754.         fHasQuit = true;

  755.         return true;

  756. #else

  757.         if (jackbridge_deactivate(fClient))

  758.         {

  759.             if (fOptions.processMode == PROCESS_MODE_CONTINUOUS_RACK)

  760.             {

  761.                 jackbridge_port_unregister(fClient, fRackPorts[kRackPortAudioIn1]);

  762.                 jackbridge_port_unregister(fClient, fRackPorts[kRackPortAudioIn2]);

  763.                 jackbridge_port_unregister(fClient, fRackPorts[kRackPortAudioOut1]);

  764.                 jackbridge_port_unregister(fClient, fRackPorts[kRackPortAudioOut2]);

  765.                 jackbridge_port_unregister(fClient, fRackPorts[kRackPortEventIn]);

  766.                 jackbridge_port_unregister(fClient, fRackPorts[kRackPortEventOut]);

  767.             }

  768. 

  769.             if (jackbridge_client_close(fClient))

  770.             {

  771.                 fClient = nullptr;

  772.                 return true;

  773.             }

  774.             else

  775.                 setLastError("Failed to close the JACK client");

  776.         }

  777.         else

  778.             setLastError("Failed to deactivate the JACK client");

  779. 

  780.         fClient = nullptr;

  781. 

  782.         fUsedGroupNames.clear();

  783.         fUsedPortNames.clear();

  784.         fUsedConnections.clear();

  785. #endif

  786.         return false;

  787.     }

  788. 

  789.     bool isRunning() const override

  790.     {

  791. #ifdef BUILD_BRIDGE

  792.         return (fClient != nullptr || ! fHasQuit);

  793. #else

  794.         return (fClient != nullptr);

  795. #endif

  796.     }

  797. 

  798.     bool isOffline() const override

  799.     {

  800.         return fFreewheel;

  801.     }

  802. 

  803.     EngineType type() const override

  804.     {

  805.         return kEngineTypeJack;

  806.     }

  807. 

  808.     CarlaEngineClient* addClient(CarlaPlugin* const plugin) override

  809.     {

  810.         const char* const iconName(plugin->iconName());

  811.         jack_client_t* client = nullptr;

  812. 

  813. #ifdef BUILD_BRIDGE

  814.         client = fClient = jackbridge_client_open(plugin->name(), JackNullOption, nullptr);

  815. 

  816.         fBufferSize = jackbridge_get_buffer_size(client);

  817.         fSampleRate = jackbridge_get_sample_rate(client);

  818. 

  819.         jackbridge_custom_publish_data(client, URI_CANVAS_ICON, iconName, std::strlen(iconName)+1);

  820. 

  821.         jackbridge_set_buffer_size_callback(client, carla_jack_bufsize_callback, this);

  822.         jackbridge_set_sample_rate_callback(client, carla_jack_srate_callback, this);

  823.         jackbridge_set_freewheel_callback(client, carla_jack_freewheel_callback, this);

  824.         jackbridge_set_process_callback(client, carla_jack_process_callback, this);

  825.         jackbridge_on_shutdown(client, carla_jack_shutdown_callback, this);

  826. # if 0

  827.         jackbridge_set_latency_callback(client, carla_jack_latency_callback, this);

  828. # endif

  829. #else

  830.         if (fOptions.processMode == PROCESS_MODE_SINGLE_CLIENT)

  831.         {

  832.             client = fClient;

  833.         }

  834.         else if (fOptions.processMode == PROCESS_MODE_MULTIPLE_CLIENTS)

  835.         {

  836.             client = jackbridge_client_open(plugin->name(), JackNullOption, nullptr);

  837. 

  838.             CARLA_ASSERT(client != nullptr);

  839. 

  840.             if (client == nullptr)

  841.                 return nullptr;

  842. 

  843.             jackbridge_custom_publish_data(client, URI_CANVAS_ICON, iconName, std::strlen(iconName)+1);

  844. 

  845.             jackbridge_set_process_callback(client, carla_jack_process_callback_plugin, plugin);

  846. # if 0

  847.             jackbridge_set_latency_callback(client, carla_jack_latency_callback_plugin, plugin);

  848. # endif

  849.         }

  850. #endif

  851. 

  852.         return new CarlaEngineJackClient(*this, client);

  853.     }

  854. 

  855. #ifndef BUILD_BRIDGE

  856.     const char* renamePlugin(const unsigned int id, const char* const newName) override

  857.     {

  858.         CARLA_ASSERT(kData->curPluginCount > 0);

  859.         CARLA_ASSERT(id < kData->curPluginCount);

  860.         CARLA_ASSERT(kData->plugins != nullptr);

  861.         CARLA_ASSERT(newName != nullptr);

  862. 

  863.         if (kData->plugins == nullptr)

  864.         {

  865.             setLastError("Critical error: no plugins are currently loaded!");

  866.             return nullptr;

  867.         }

  868. 

  869.         CarlaPlugin* const plugin(kData->plugins[id].plugin);

  870. 

  871.         if (plugin == nullptr)

  872.         {

  873.             carla_stderr("CarlaEngine::clonePlugin(%i) - could not find plugin", id);

  874.             return nullptr;

  875.         }

  876. 

  877.         CARLA_ASSERT(plugin->id() == id);

  878. 

  879.         bool needsReinit = (fOptions.processMode == PROCESS_MODE_SINGLE_CLIENT);

  880.         const char* name = getUniquePluginName(newName);

  881. 

  882.         // TODO - use rename port if single-client

  883. 

  884.         // JACK client rename

  885.         if (fOptions.processMode == PROCESS_MODE_MULTIPLE_CLIENTS)

  886.         {

  887.             CarlaEngineJackClient* const client((CarlaEngineJackClient*)CarlaPluginGetEngineClient(plugin));

  888. 

  889.             if (bridge.client_rename_ptr != nullptr)

  890.             {

  891.                 name = bridge.client_rename_ptr(client->kClient, name);

  892.             }

  893.             else

  894.             {

  895.                 // we should not be able to do this, jack really needs to allow client rename

  896.                 needsReinit = true;

  897. 

  898.                 if (jack_client_t* jclient = jackbridge_client_open(name, JackNullOption, nullptr))

  899.                 {

  900.                     const char* const iconName(plugin->iconName());

  901.                     jackbridge_custom_publish_data(jclient, URI_CANVAS_ICON, iconName, std::strlen(iconName)+1);

  902. 

  903.                     // close old client

  904.                     plugin->setEnabled(false);

  905. 

  906.                     if (client->isActive())

  907.                         client->deactivate();

  908. 

  909.                     plugin->clearBuffers();

  910. 

  911.                     jackbridge_client_close(client->kClient);

  912. 

  913.                     // set new client data

  914.                     name = jackbridge_get_client_name(jclient);

  915. 

  916.                     jackbridge_set_process_callback(jclient, carla_jack_process_callback_plugin, plugin);

  917. # if 0

  918.                     jackbridge_set_latency_callback(jclient, carla_jack_latency_callback_plugin, plugin);

  919. # endif

  920. 

  921.                     // this is supposed to be constant...

  922.                     std::memcpy((jack_client_t**)&client->kClient, &jclient, sizeof(jack_client_t**));

  923.                 }

  924.             }

  925.         }

  926. 

  927.         if (name == nullptr)

  928.             return nullptr;

  929. 

  930.         // Rename

  931.         plugin->setName(name);

  932. 

  933.         if (needsReinit)

  934.         {

  935.             // reload plugin to recreate its ports

  936.             const SaveState& saveState(plugin->getSaveState());

  937.             plugin->reload();

  938.             plugin->loadSaveState(saveState);

  939.         }

  940. 

  941.         return name;

  942.     }

  943. 

  944.     // -------------------------------------------------------------------

  945.     // Patchbay

  946. 

  947.     bool patchbayConnect(int portA, int portB) override

  948.     {

  949.         CARLA_ASSERT(fClient != nullptr);

  950. 

  951.         if (fClient == nullptr)

  952.         {

  953.             setLastError("Invalid JACK client");

  954.             return false;

  955.         }

  956. 

  957.         char portNameA[STR_MAX+1];

  958.         char portNameB[STR_MAX+1];

  959.         getFullPortName(portA, portNameA);

  960.         getFullPortName(portB, portNameB);

  961. 

  962.         if (! jackbridge_connect(fClient, portNameA, portNameB))

  963.         {

  964.             setLastError("JACK operation failed");

  965.             return false;

  966.         }

  967. 

  968.         return true;

  969.     }

  970. 

  971.     bool patchbayDisconnect(int connectionId) override

  972.     {

  973.         CARLA_ASSERT(fClient != nullptr);

  974. 

  975.         if (fClient == nullptr)

  976.         {

  977.             setLastError("Invalid JACK client");

  978.             return false;

  979.         }

  980. 

  981.         foreach (const ConnectionToId& connectionToId, fUsedConnections)

  982.         {

  983.             if (connectionToId.id == connectionId)

  984.             {

  985.                 char portNameOut[STR_MAX+1];

  986.                 char portNameIn[STR_MAX+1];

  987. 

  988.                 getFullPortName(connectionToId.portOut, portNameOut);

  989.                 getFullPortName(connectionToId.portIn, portNameIn);

  990. 

  991.                 if (! jackbridge_disconnect(fClient, portNameOut, portNameIn))

  992.                 {

  993.                     setLastError("JACK operation failed");

  994.                     return false;

  995.                 }

  996. 

  997.                 return true;

  998.             }

  999.         }

  1000. 

  1001.         setLastError("Failed to find the requested connection");

  1002.         return false;

  1003.     }

  1004. 

  1005.     void patchbayRefresh() override

  1006.     {

  1007.         CARLA_ASSERT(fClient != nullptr);

  1008. 

  1009.         if (fClient == nullptr)

  1010.             return;

  1011. 

  1012.         fLastGroupId = 0;

  1013.         fLastPortId  = 0;

  1014.         fLastConnectionId = 0;

  1015. 

  1016.         fUsedGroupNames.clear();

  1017.         fUsedPortNames.clear();

  1018.         fUsedConnections.clear();

  1019. 

  1020.         initJackPatchbay(jackbridge_get_client_name(fClient));

  1021.     }

  1022. #endif

  1023. 

  1024.     // -------------------------------------------------------------------

  1025.     // Transport

  1026. 

  1027.     void transportPlay() override

  1028.     {

  1029.         if (fOptions.transportMode == TRANSPORT_MODE_INTERNAL)

  1030.             CarlaEngine::transportPlay();

  1031.         else if (fClient != nullptr)

  1032.             jackbridge_transport_start(fClient);

  1033.     }

  1034. 

  1035.     void transportPause() override

  1036.     {

  1037.         if (fOptions.transportMode == TRANSPORT_MODE_INTERNAL)

  1038.             CarlaEngine::transportPause();

  1039.         else if (fClient != nullptr)

  1040.             jackbridge_transport_stop(fClient);

  1041.     }

  1042. 

  1043.     void transportRelocate(const uint32_t frame) override

  1044.     {

  1045.         if (fOptions.transportMode == TRANSPORT_MODE_INTERNAL)

  1046.             CarlaEngine::transportRelocate(frame);

  1047.         else if (fClient != nullptr)

  1048.             jackbridge_transport_locate(fClient, frame);

  1049.     }

  1050. 

  1051.     // -------------------------------------

  1052. 

  1053. protected:

  1054.     void handleJackBufferSizeCallback(const uint32_t newBufferSize)

  1055.     {

  1056.         if (fBufferSize == newBufferSize)

  1057.             return;

  1058. 

  1059.         fBufferSize = newBufferSize;

  1060.         bufferSizeChanged(newBufferSize);

  1061.     }

  1062. 

  1063.     void handleJackSampleRateCallback(const double newSampleRate)

  1064.     {

  1065.         if (fSampleRate == newSampleRate)

  1066.             return;

  1067. 

  1068.         fSampleRate = newSampleRate;

  1069.         sampleRateChanged(newSampleRate);

  1070.     }

  1071. 

  1072.     void handleJackFreewheelCallback(const bool isFreewheel)

  1073.     {

  1074.         fFreewheel = isFreewheel;

  1075.     }

  1076. 

  1077.     void saveTransportInfo()

  1078.     {

  1079.         if (fOptions.transportMode != TRANSPORT_MODE_JACK)

  1080.             return;

  1081. 

  1082.         fTransportPos.unique_1 = fTransportPos.unique_2 + 1; // invalidate

  1083. 

  1084.         fTransportState = jackbridge_transport_query(fClient, &fTransportPos);

  1085. 

  1086.         fTimeInfo.playing = (fTransportState == JackTransportRolling);

  1087. 

  1088.         if (fTransportPos.unique_1 == fTransportPos.unique_2)

  1089.         {

  1090.             fTimeInfo.frame = fTransportPos.frame;

  1091.             fTimeInfo.usecs = fTransportPos.usecs;

  1092. 

  1093.             if (fTransportPos.valid & JackPositionBBT)

  1094.             {

  1095.                 fTimeInfo.valid              = EngineTimeInfo::ValidBBT;

  1096.                 fTimeInfo.bbt.bar            = fTransportPos.bar;

  1097.                 fTimeInfo.bbt.beat           = fTransportPos.beat;

  1098.                 fTimeInfo.bbt.tick           = fTransportPos.tick;

  1099.                 fTimeInfo.bbt.barStartTick   = fTransportPos.bar_start_tick;

  1100.                 fTimeInfo.bbt.beatsPerBar    = fTransportPos.beats_per_bar;

  1101.                 fTimeInfo.bbt.beatType       = fTransportPos.beat_type;

  1102.                 fTimeInfo.bbt.ticksPerBeat   = fTransportPos.ticks_per_beat;

  1103.                 fTimeInfo.bbt.beatsPerMinute = fTransportPos.beats_per_minute;

  1104.             }

  1105.             else

  1106.                 fTimeInfo.valid = 0x0;

  1107.         }

  1108.         else

  1109.         {

  1110.             fTimeInfo.frame = 0;

  1111.             fTimeInfo.valid = 0x0;

  1112.         }

  1113.     }

  1114. 

  1115.     void handleJackProcessCallback(const uint32_t nframes)

  1116.     {

  1117.         saveTransportInfo();

  1118. 

  1119. #ifndef BUILD_BRIDGE

  1120.         if (kData->curPluginCount == 0)

  1121.         {

  1122.             // pass-through

  1123.             if (fOptions.processMode == PROCESS_MODE_CONTINUOUS_RACK)

  1124.             {

  1125.                 float* const audioIn1  = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioIn1], nframes);

  1126.                 float* const audioIn2  = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioIn2], nframes);

  1127.                 float* const audioOut1 = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioOut1], nframes);

  1128.                 float* const audioOut2 = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioOut2], nframes);

  1129.                 void*  const eventOut  = jackbridge_port_get_buffer(fRackPorts[kRackPortEventOut], nframes);

  1130. 

  1131.                 CARLA_ASSERT(audioIn1 != nullptr);

  1132.                 CARLA_ASSERT(audioIn2 != nullptr);

  1133.                 CARLA_ASSERT(audioOut1 != nullptr);

  1134.                 CARLA_ASSERT(audioOut2 != nullptr);

  1135.                 CARLA_ASSERT(eventOut != nullptr);

  1136. 

  1137.                 carla_copyFloat(audioOut1, audioIn1, nframes);

  1138.                 carla_copyFloat(audioOut2, audioIn2, nframes);

  1139.                 jackbridge_midi_clear_buffer(eventOut);

  1140.             }

  1141. 

  1142.             return proccessPendingEvents();

  1143.         }

  1144. #endif

  1145. 

  1146. #ifdef BUILD_BRIDGE

  1147.         CarlaPlugin* const plugin(getPluginUnchecked(0));

  1148. 

  1149.         if (plugin != nullptr && plugin->enabled() && plugin->tryLock())

  1150.         {

  1151.             plugin->initBuffers();

  1152.             processPlugin(plugin, nframes);

  1153.             plugin->unlock();

  1154.         }

  1155. #else

  1156.         if (fOptions.processMode == PROCESS_MODE_SINGLE_CLIENT)

  1157.         {

  1158.             for (unsigned int i=0; i < kData->curPluginCount; ++i)

  1159.             {

  1160.                 CarlaPlugin* const plugin(getPluginUnchecked(i));

  1161. 

  1162.                 if (plugin != nullptr && plugin->enabled() && plugin->tryLock())

  1163.                 {

  1164.                     plugin->initBuffers();

  1165.                     processPlugin(plugin, nframes);

  1166.                     plugin->unlock();

  1167.                 }

  1168.             }

  1169.         }

  1170.         else if (fOptions.processMode == PROCESS_MODE_CONTINUOUS_RACK)

  1171.         {

  1172.             // get buffers from jack

  1173.             float* const audioIn1  = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioIn1], nframes);

  1174.             float* const audioIn2  = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioIn2], nframes);

  1175.             float* const audioOut1 = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioOut1], nframes);

  1176.             float* const audioOut2 = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioOut2], nframes);

  1177.             void* const  eventIn   = jackbridge_port_get_buffer(fRackPorts[kRackPortEventIn],  nframes);

  1178.             void* const  eventOut  = jackbridge_port_get_buffer(fRackPorts[kRackPortEventOut], nframes);

  1179. 

  1180.             // assert buffers

  1181.             CARLA_ASSERT(audioIn1 != nullptr);

  1182.             CARLA_ASSERT(audioIn2 != nullptr);

  1183.             CARLA_ASSERT(audioOut1 != nullptr);

  1184.             CARLA_ASSERT(audioOut2 != nullptr);

  1185.             CARLA_ASSERT(eventIn != nullptr);

  1186.             CARLA_ASSERT(eventOut != nullptr);

  1187. 

  1188.             // create audio buffers

  1189.             float* inBuf[2]  = { audioIn1, audioIn2 };

  1190.             float* outBuf[2] = { audioOut1, audioOut2 };

  1191. 

  1192.             // initialize input events

  1193.             carla_zeroStruct<EngineEvent>(kData->bufEvents.in, INTERNAL_EVENT_COUNT);

  1194.             {

  1195.                 uint32_t engineEventIndex = 0;

  1196. 

  1197.                 jack_midi_event_t jackEvent;

  1198.                 const uint32_t jackEventCount(jackbridge_midi_get_event_count(eventIn));

  1199. 

  1200.                 for (uint32_t jackEventIndex=0; jackEventIndex < jackEventCount; ++jackEventIndex)

  1201.                 {

  1202.                     if (jackbridge_midi_event_get(&jackEvent, eventIn, jackEventIndex) != 0)

  1203.                         continue;

  1204. 

  1205.                     EngineEvent* const engineEvent(&kData->bufEvents.in[engineEventIndex++]);

  1206.                     engineEvent->clear();

  1207. 

  1208.                     const uint8_t midiStatus  = MIDI_GET_STATUS_FROM_DATA(jackEvent.buffer);

  1209.                     const uint8_t midiChannel = MIDI_GET_CHANNEL_FROM_DATA(jackEvent.buffer);

  1210. 

  1211.                     engineEvent->time    = jackEvent.time;

  1212.                     engineEvent->channel = midiChannel;

  1213. 

  1214.                     if (MIDI_IS_STATUS_CONTROL_CHANGE(midiStatus))

  1215.                     {

  1216.                         const uint8_t midiControl = jackEvent.buffer[1];

  1217.                         engineEvent->type         = kEngineEventTypeControl;

  1218. 

  1219.                         if (MIDI_IS_CONTROL_BANK_SELECT(midiControl))

  1220.                         {

  1221.                             const uint8_t midiBank  = jackEvent.buffer[2];

  1222. 

  1223.                             engineEvent->ctrl.type  = kEngineControlEventTypeMidiBank;

  1224.                             engineEvent->ctrl.param = midiBank;

  1225.                             engineEvent->ctrl.value = 0.0f;

  1226.                         }

  1227.                         else if (midiControl == MIDI_CONTROL_ALL_SOUND_OFF)

  1228.                         {

  1229.                             engineEvent->ctrl.type  = kEngineControlEventTypeAllSoundOff;

  1230.                             engineEvent->ctrl.param = 0;

  1231.                             engineEvent->ctrl.value = 0.0f;

  1232.                         }

  1233.                         else if (midiControl == MIDI_CONTROL_ALL_NOTES_OFF)

  1234.                         {

  1235.                             engineEvent->ctrl.type  = kEngineControlEventTypeAllNotesOff;

  1236.                             engineEvent->ctrl.param = 0;

  1237.                             engineEvent->ctrl.value = 0.0f;

  1238.                         }

  1239.                         else

  1240.                         {

  1241.                             const uint8_t midiValue = jackEvent.buffer[2];

  1242. 

  1243.                             engineEvent->ctrl.type  = kEngineControlEventTypeParameter;

  1244.                             engineEvent->ctrl.param = midiControl;

  1245.                             engineEvent->ctrl.value = float(midiValue)/127.0f;

  1246.                         }

  1247.                     }

  1248.                     else if (MIDI_IS_STATUS_PROGRAM_CHANGE(midiStatus))

  1249.                     {

  1250.                         const uint8_t midiProgram = jackEvent.buffer[1];

  1251.                         engineEvent->type         = kEngineEventTypeControl;

  1252. 

  1253.                         engineEvent->ctrl.type  = kEngineControlEventTypeMidiProgram;

  1254.                         engineEvent->ctrl.param = midiProgram;

  1255.                         engineEvent->ctrl.value = 0.0f;

  1256.                     }

  1257.                     else if (jackEvent.size <= 4)

  1258.                     {

  1259.                         engineEvent->type = kEngineEventTypeMidi;

  1260. 

  1261.                         carla_copy<uint8_t>(engineEvent->midi.data, jackEvent.buffer, jackEvent.size);

  1262. 

  1263.                         engineEvent->midi.data[0] = midiStatus;

  1264.                         engineEvent->midi.size    = static_cast<uint8_t>(jackEvent.size);

  1265.                     }

  1266. 

  1267.                     if (engineEventIndex >= INTERNAL_EVENT_COUNT)

  1268.                         break;

  1269.                 }

  1270.             }

  1271. 

  1272.             // process rack

  1273.             processRack(inBuf, outBuf, nframes);

  1274. 

  1275.             // output control

  1276.             {

  1277.                 jackbridge_midi_clear_buffer(eventOut);

  1278. 

  1279.                 for (unsigned short i=0; i < INTERNAL_EVENT_COUNT; ++i)

  1280.                 {

  1281.                     EngineEvent* const engineEvent = &kData->bufEvents.out[i];

  1282. 

  1283.                     uint8_t data[3] = { 0 };

  1284.                     uint8_t size    = 0;

  1285. 

  1286.                     switch (engineEvent->type)

  1287.                     {

  1288.                     case kEngineEventTypeNull:

  1289.                         break;

  1290. 

  1291.                     case kEngineEventTypeControl:

  1292.                     {

  1293.                         EngineControlEvent* const ctrlEvent = &engineEvent->ctrl;

  1294. 

  1295.                         if (ctrlEvent->type == kEngineControlEventTypeParameter && MIDI_IS_CONTROL_BANK_SELECT(ctrlEvent->param))

  1296.                         {

  1297.                             // FIXME?

  1298.                             ctrlEvent->type  = kEngineControlEventTypeMidiBank;

  1299.                             ctrlEvent->param = ctrlEvent->value;

  1300.                             ctrlEvent->value = 0.0f;

  1301.                         }

  1302. 

  1303.                         switch (ctrlEvent->type)

  1304.                         {

  1305.                         case kEngineControlEventTypeNull:

  1306.                             break;

  1307.                         case kEngineControlEventTypeParameter:

  1308.                             data[0] = MIDI_STATUS_CONTROL_CHANGE + engineEvent->channel;

  1309.                             data[1] = static_cast<uint8_t>(ctrlEvent->param);

  1310.                             data[2] = uint8_t(ctrlEvent->value * 127.0f);

  1311.                             size    = 3;

  1312.                             break;

  1313.                         case kEngineControlEventTypeMidiBank:

  1314.                             data[0] = MIDI_STATUS_CONTROL_CHANGE + engineEvent->channel;

  1315.                             data[1] = MIDI_CONTROL_BANK_SELECT;

  1316.                             data[2] = static_cast<uint8_t>(ctrlEvent->param);

  1317.                             size    = 3;

  1318.                             break;

  1319.                         case kEngineControlEventTypeMidiProgram:

  1320.                             data[0] = MIDI_STATUS_PROGRAM_CHANGE + engineEvent->channel;

  1321.                             data[1] = static_cast<uint8_t>(ctrlEvent->param);

  1322.                             size    = 2;

  1323.                             break;

  1324.                         case kEngineControlEventTypeAllSoundOff:

  1325.                             data[0] = MIDI_STATUS_CONTROL_CHANGE + engineEvent->channel;

  1326.                             data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1327.                             size    = 2;

  1328.                             break;

  1329.                         case kEngineControlEventTypeAllNotesOff:

  1330.                             data[0] = MIDI_STATUS_CONTROL_CHANGE + engineEvent->channel;

  1331.                             data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1332.                             size    = 2;

  1333.                             break;

  1334.                         }

  1335.                         break;

  1336.                     }

  1337. 

  1338.                     case kEngineEventTypeMidi:

  1339.                     {

  1340.                         EngineMidiEvent* const midiEvent = &engineEvent->midi;

  1341. 

  1342.                         data[0] = midiEvent->data[0];

  1343.                         data[1] = midiEvent->data[1];

  1344.                         data[2] = midiEvent->data[2];

  1345.                         size    = midiEvent->size;

  1346.                         break;

  1347.                     }

  1348.                     }

  1349. 

  1350.                     if (size > 0)

  1351.                         jackbridge_midi_event_write(eventOut, engineEvent->time, data, size);

  1352.                 }

  1353.             }

  1354.         }

  1355. #endif // ! BUILD_BRIDGE

  1356. 

  1357.         proccessPendingEvents();

  1358.     }

  1359. 

  1360. #if 0

  1361.     void handleJackLatencyCallback(const jack_latency_callback_mode_t mode)

  1362.     {

  1363.         if (fOptions.processMode != PROCESS_MODE_SINGLE_CLIENT)

  1364.             return;

  1365. 

  1366.         for (unsigned int i=0; i < kData->curPluginCount; ++i)

  1367.         {

  1368.             CarlaPlugin* const plugin = getPluginUnchecked(i);

  1369. 

  1370.             if (plugin && plugin->enabled())

  1371.                 latencyPlugin(plugin, mode);

  1372.         }

  1373.     }

  1374. #endif

  1375. 

  1376. #ifndef BUILD_BRIDGE

  1377.     void handleJackClientRegistrationCallback(const char* name, bool reg)

  1378.     {

  1379.         // do nothing on client registration, wait for first port

  1380.         if (reg) return;

  1381. 

  1382.         const int id(getGroupId(name)); // also checks name nullness

  1383. 

  1384.         if (id == -1)

  1385.             return;

  1386. 

  1387.         GroupNameToId groupNameId(id, name);

  1388.         fUsedGroupNames.removeAll(groupNameId);

  1389. 

  1390.         callback(CALLBACK_PATCHBAY_CLIENT_REMOVED, 0, id, 0, 0.0f, nullptr);

  1391.     }

  1392. 

  1393.     void handleJackPortRegistrationCallback(jack_port_id_t port, bool reg)

  1394.     {

  1395.         jack_port_t* const jackPort(jackbridge_port_by_id(fClient, port));

  1396.         const char*  const portName(jackbridge_port_short_name(jackPort));

  1397.         const char*  const fullPortName(jackbridge_port_name(jackPort));

  1398. 

  1399.         CARLA_ASSERT(jackPort != nullptr);

  1400.         CARLA_ASSERT(portName != nullptr);

  1401.         CARLA_ASSERT(fullPortName != nullptr);

  1402. 

  1403.         if (jackPort == nullptr)

  1404.             return;

  1405.         if (portName == nullptr)

  1406.             return;

  1407.         if (fullPortName == nullptr)

  1408.             return;

  1409. 

  1410.         const size_t groupNameSize(std::strstr(fullPortName, portName) - fullPortName - 1);

  1411.         char         groupName[groupNameSize+1];

  1412. 

  1413.         carla_copy<char>(groupName, fullPortName, groupNameSize);

  1414.         groupName[groupNameSize] = '\0';

  1415. 

  1416.         int groupId = getGroupId(groupName);

  1417. 

  1418.         if (reg)

  1419.         {

  1420.             const int jackPortFlags(jackbridge_port_flags(jackPort));

  1421. 

  1422.             if (groupId == -1)

  1423.             {

  1424.                 groupId = fLastGroupId++;

  1425. 

  1426.                 GroupNameToId groupNameToId(groupId, groupName);

  1427.                 fUsedGroupNames.append(groupNameToId);

  1428. 

  1429.                 PatchbayIconType groupIcon = PATCHBAY_ICON_APPLICATION;

  1430. 

  1431.                 void*  data = nullptr;

  1432.                 size_t dataSize = 0;

  1433. 

  1434.                 if (jackbridge_custom_get_data(fClient, groupName, URI_CANVAS_ICON, &data, &dataSize) && data != nullptr && dataSize != 0)

  1435.                 {

  1436.                     const char* const icon((const char*)data);

  1437.                     CARLA_ASSERT(std::strlen(icon)+1 == dataSize);

  1438. 

  1439.                     if (std::strcmp(icon, "app") == 0 || std::strcmp(icon, "application") == 0)

  1440.                         groupIcon = PATCHBAY_ICON_APPLICATION;

  1441.                     else if (std::strcmp(icon, "hardware") == 0)

  1442.                         groupIcon = PATCHBAY_ICON_HARDWARE;

  1443.                     else if (std::strcmp(icon, "carla") == 0)

  1444.                         groupIcon = PATCHBAY_ICON_CARLA;

  1445.                     else if (std::strcmp(icon, "distrho") == 0)

  1446.                         groupIcon = PATCHBAY_ICON_DISTRHO;

  1447.                     else if (std::strcmp(icon, "file") == 0)

  1448.                         groupIcon = PATCHBAY_ICON_FILE;

  1449.                     else if (std::strcmp(icon, "plugin") == 0)

  1450.                         groupIcon = PATCHBAY_ICON_PLUGIN;

  1451.                 }

  1452.                 else if (jackPortFlags & JackPortIsPhysical)

  1453.                     groupIcon = PATCHBAY_ICON_HARDWARE;

  1454. 

  1455.                 callback(CALLBACK_PATCHBAY_CLIENT_ADDED, 0, groupId, groupIcon, 0.0f, groupName);

  1456.             }

  1457. 

  1458.             bool portIsInput = (jackPortFlags & JackPortIsInput);

  1459.             bool portIsAudio = (std::strcmp(jackbridge_port_type(jackPort), JACK_DEFAULT_AUDIO_TYPE) == 0);

  1460.             bool portIsCV    = (jackPortFlags & JackPortIsControlVoltage);

  1461. 

  1462.             unsigned int canvasPortFlags = 0x0;

  1463.             canvasPortFlags |= portIsInput ? PATCHBAY_PORT_IS_INPUT : PATCHBAY_PORT_IS_OUTPUT;

  1464.             canvasPortFlags |= portIsAudio ? PATCHBAY_PORT_IS_AUDIO : PATCHBAY_PORT_IS_MIDI;

  1465. 

  1466.             if (portIsAudio && portIsCV)

  1467.                 canvasPortFlags |= PATCHBAY_PORT_IS_CV;

  1468. 

  1469.             PortNameToId portNameToId(groupId, fLastPortId++, portName, fullPortName);

  1470.             fUsedPortNames.append(portNameToId);

  1471. 

  1472.             callback(CALLBACK_PATCHBAY_PORT_ADDED, 0, groupId, portNameToId.portId, canvasPortFlags, portName);

  1473.         }

  1474.         else

  1475.         {

  1476.             const int portId(getPortId(fullPortName));

  1477. 

  1478.             CARLA_ASSERT(groupId != -1);

  1479.             CARLA_ASSERT(portId != -1);

  1480. 

  1481.             if (groupId == -1 || portId == -1)

  1482.                 return;

  1483. 

  1484.             PortNameToId portNameId(groupId, portId, portName, fullPortName);

  1485.             fUsedPortNames.removeOne(portNameId);

  1486. 

  1487.             callback(CALLBACK_PATCHBAY_PORT_REMOVED, 0, portId, 0, 0.0f, nullptr);

  1488.         }

  1489.     }

  1490. 

  1491.     void handleJackPortConnectCallback(jack_port_id_t a, jack_port_id_t b, bool connect)

  1492.     {

  1493.         jack_port_t* const jackPortA(jackbridge_port_by_id(fClient, a));

  1494.         jack_port_t* const jackPortB(jackbridge_port_by_id(fClient, b));

  1495.         const char*  const fullPortNameA(jackbridge_port_name(jackPortA));

  1496.         const char*  const fullPortNameB(jackbridge_port_name(jackPortB));

  1497. 

  1498.         CARLA_ASSERT(jackPortA != nullptr);

  1499.         CARLA_ASSERT(jackPortB != nullptr);

  1500.         CARLA_ASSERT(fullPortNameA != nullptr);

  1501.         CARLA_ASSERT(fullPortNameB != nullptr);

  1502. 

  1503.         if (jackPortA == nullptr)

  1504.             return;

  1505.         if (jackPortB == nullptr)

  1506.             return;

  1507.         if (fullPortNameA == nullptr)

  1508.             return;

  1509.         if (fullPortNameB == nullptr)

  1510.             return;

  1511. 

  1512.         const int portIdA(getPortId(fullPortNameA));

  1513.         const int portIdB(getPortId(fullPortNameB));

  1514. 

  1515.         if (portIdA == -1 || portIdB == -1)

  1516.             return;

  1517. 

  1518.         if (connect)

  1519.         {

  1520.             ConnectionToId connectionToId(fLastConnectionId++, portIdA, portIdB);

  1521.             fUsedConnections.append(connectionToId);

  1522. 

  1523.             callback(CALLBACK_PATCHBAY_CONNECTION_ADDED, 0, connectionToId.id, portIdA, portIdB, nullptr);

  1524.         }

  1525.         else

  1526.         {

  1527.             for (int i=0, count=fUsedConnections.count(); i < count; ++i)

  1528.             {

  1529.                 const ConnectionToId& connectionToId(fUsedConnections[i]);

  1530. 

  1531.                 if (connectionToId.portOut == portIdA && connectionToId.portIn == portIdB)

  1532.                 {

  1533.                     callback(CALLBACK_PATCHBAY_CONNECTION_REMOVED, 0, connectionToId.id, 0, 0.0f, nullptr);

  1534.                     fUsedConnections.takeAt(i);

  1535.                     break;

  1536.                 }

  1537.             }

  1538.         }

  1539.     }

  1540. 

  1541.     void handleJackPortRenameCallback(jack_port_id_t port, const char* oldName, const char* newName)

  1542.     {

  1543.         jack_port_t* const jackPort(jackbridge_port_by_id(fClient, port));

  1544.         const char*  const portName(jackbridge_port_short_name(jackPort));

  1545. 

  1546.         CARLA_ASSERT(jackPort != nullptr);

  1547.         CARLA_ASSERT(portName != nullptr);

  1548. 

  1549.         if (jackPort == nullptr)

  1550.             return;

  1551.         if (portName == nullptr)

  1552.             return;

  1553. 

  1554.         const size_t groupNameSize(std::strstr(newName, portName) - newName - 1);

  1555.         char         groupName[groupNameSize+1];

  1556. 

  1557.         carla_copy<char>(groupName, newName, groupNameSize);

  1558.         groupName[groupNameSize] = '\0';

  1559. 

  1560.         const int groupId(getGroupId(groupName));

  1561. 

  1562.         CARLA_ASSERT(groupId != -1);

  1563. 

  1564.         if (groupId == -1)

  1565.             return;

  1566. 

  1567.         for (int i=0, count=fUsedPortNames.count(); i < count; ++i)

  1568.         {

  1569.             PortNameToId& portNameId(fUsedPortNames[i]);

  1570. 

  1571.             if (/*portNameId.groupId == groupId &&*/ std::strcmp(portNameId.fullName, oldName) == 0)

  1572.             {

  1573.                 CARLA_ASSERT(portNameId.groupId == groupId);

  1574.                 portNameId.rename(portName, newName);

  1575.                 callback(CALLBACK_PATCHBAY_PORT_RENAMED, 0, portNameId.portId, 0, 0.0f, newName);

  1576.                 break;

  1577.             }

  1578.         }

  1579.     }

  1580. #endif

  1581. 

  1582.     void handleJackShutdownCallback()

  1583.     {

  1584.         for (unsigned int i=0; i < kData->curPluginCount; ++i)

  1585.         {

  1586.             //CarlaPlugin* const plugin = getPluginUnchecked(i);

  1587. 

  1588.             //if (plugin)

  1589.             //    plugin->x_client = nullptr;

  1590.         }

  1591. 

  1592.         fClient = nullptr;

  1593.         callback(CALLBACK_QUIT, 0, 0, 0, 0.0f, nullptr);

  1594.     }

  1595. 

  1596.     // -------------------------------------

  1597. 

  1598. private:

  1599.     jack_client_t*         fClient;

  1600.     jack_position_t        fTransportPos;

  1601.     jack_transport_state_t fTransportState;

  1602.     bool fFreewheel;

  1603. 

  1604.     // -------------------------------------

  1605. 

  1606. #ifdef BUILD_BRIDGE

  1607.     bool fHasQuit;

  1608. #else

  1609.     enum RackPorts {

  1610.         kRackPortAudioIn1  = 0,

  1611.         kRackPortAudioIn2  = 1,

  1612.         kRackPortAudioOut1 = 2,

  1613.         kRackPortAudioOut2 = 3,

  1614.         kRackPortEventIn   = 4,

  1615.         kRackPortEventOut  = 5,

  1616.         kRackPortCount     = 6

  1617.     };

  1618. 

  1619.     jack_port_t* fRackPorts[kRackPortCount];

  1620. 

  1621.     struct GroupNameToId {

  1622.         int  id;

  1623.         char name[STR_MAX+1];

  1624. 

  1625.         GroupNameToId()

  1626.         {

  1627.             id = -1;

  1628.             name[0] = '\0';

  1629.         }

  1630. 

  1631.         GroupNameToId(const int id, const char name[])

  1632.         {

  1633.             this->id = id;

  1634.             std::strncpy(this->name, name, STR_MAX);

  1635.             this->name[STR_MAX] = '\0';

  1636.         }

  1637. 

  1638.         bool operator==(const GroupNameToId& groupNameId)

  1639.         {

  1640.             if (groupNameId.id != id)

  1641.                 return false;

  1642.             if (std::strcmp(groupNameId.name, name) != 0)

  1643.                 return false;

  1644.             return true;

  1645.         }

  1646.     };

  1647. 

  1648.     struct PortNameToId {

  1649.         int  groupId;

  1650.         int  portId;

  1651.         char name[STR_MAX+1];

  1652.         char fullName[STR_MAX+1]; // unique

  1653. 

  1654.         PortNameToId()

  1655.         {

  1656.             groupId = -1;

  1657.             portId  = -1;

  1658.             name[0] = '\0';

  1659.             fullName[0] = '\0';

  1660.         }

  1661. 

  1662.         PortNameToId(const int groupId, const int portId, const char name[], const char fullName[])

  1663.         {

  1664.             this->groupId = groupId;

  1665.             this->portId  = portId;

  1666.             std::strncpy(this->name, name, STR_MAX);

  1667.             this->name[STR_MAX] = '\0';

  1668.             std::strncpy(this->fullName, fullName, STR_MAX);

  1669.             this->fullName[STR_MAX] = '\0';

  1670.         }

  1671. 

  1672.         void rename(const char name[], const char fullName[])

  1673.         {

  1674.             std::strncpy(this->name, name, STR_MAX);

  1675.             this->name[STR_MAX] = '\0';

  1676.             std::strncpy(this->fullName, fullName, STR_MAX);

  1677.             this->fullName[STR_MAX] = '\0';

  1678.         }

  1679. 

  1680.         bool operator==(const PortNameToId& portNameId)

  1681.         {

  1682.             if (portNameId.groupId != groupId)

  1683.                 return false;

  1684.             if (portNameId.portId != portId)

  1685.                 return false;

  1686.             if (std::strcmp(portNameId.name, name) != 0)

  1687.                 return false;

  1688.             if (std::strcmp(portNameId.fullName, fullName) != 0)

  1689.                 return false;

  1690.             return true;

  1691.         }

  1692.     };

  1693. 

  1694.     struct ConnectionToId {

  1695.         int id;

  1696.         int portOut;

  1697.         int portIn;

  1698. 

  1699.         ConnectionToId()

  1700.         {

  1701.             id = -1;

  1702.             portOut = -1;

  1703.             portIn  = -1;

  1704.         }

  1705. 

  1706.         ConnectionToId(const int id, const int portOut, const int portIn)

  1707.         {

  1708.             this->id = id;

  1709.             this->portOut = portOut;

  1710.             this->portIn  = portIn;

  1711.         }

  1712. 

  1713.         bool operator==(const ConnectionToId& connectionId)

  1714.         {

  1715.             if (connectionId.id != id)

  1716.                 return false;

  1717.             if (connectionId.portOut != portOut)

  1718.                 return false;

  1719.             if (connectionId.portIn != portIn)

  1720.                 return false;

  1721.             return true;

  1722.         }

  1723.     };

  1724. 

  1725.     int fLastGroupId;

  1726.     int fLastPortId;

  1727.     int fLastConnectionId;

  1728. 

  1729.     QList<GroupNameToId>  fUsedGroupNames;

  1730.     QList<PortNameToId>   fUsedPortNames;

  1731.     QList<ConnectionToId> fUsedConnections;

  1732. 

  1733.     int getGroupId(const char* const name)

  1734.     {

  1735.         CARLA_ASSERT(name != nullptr);

  1736. 

  1737.         if (name == nullptr)

  1738.             return -1;

  1739. 

  1740.         foreach (const GroupNameToId& groupNameId, fUsedGroupNames)

  1741.         {

  1742.             if (std::strcmp(groupNameId.name, name) == 0)

  1743.                 return groupNameId.id;

  1744.         }

  1745. 

  1746.         return -1;

  1747.     }

  1748. 

  1749.     int getPortId(const char* const fullName)

  1750.     {

  1751.         CARLA_ASSERT(fullName != nullptr);

  1752. 

  1753.         if (fullName == nullptr)

  1754.             return -1;

  1755. 

  1756.         foreach (const PortNameToId& portNameId, fUsedPortNames)

  1757.         {

  1758.             if (std::strcmp(portNameId.fullName, fullName) == 0)

  1759.                 return portNameId.portId;

  1760.         }

  1761. 

  1762.         return -1;

  1763.     }

  1764. 

  1765.     void getFullPortName(const int portId, char nameBuf[STR_MAX+1])

  1766.     {

  1767.         foreach (const PortNameToId& portNameId, fUsedPortNames)

  1768.         {

  1769.             if (portNameId.portId == portId)

  1770.             {

  1771.                 std::strncpy(nameBuf, portNameId.fullName, STR_MAX);

  1772.                 nameBuf[STR_MAX] = '\0';

  1773.                 return;

  1774.             }

  1775.         }

  1776. 

  1777.         nameBuf[0] = '\0';

  1778.     }

  1779. 

  1780.     void initJackPatchbay(const char* const ourName)

  1781.     {

  1782.         CARLA_ASSERT(fLastGroupId == 0);

  1783.         CARLA_ASSERT(fLastPortId == 0);

  1784.         CARLA_ASSERT(fLastConnectionId == 0);

  1785.         CARLA_ASSERT(ourName != nullptr);

  1786. 

  1787.         // query initial jack ports

  1788.         QStringList parsedGroups;

  1789. 

  1790.         // our client

  1791.         if (ourName != nullptr)

  1792.         {

  1793.             parsedGroups.append(QString(ourName));

  1794. 

  1795.             GroupNameToId groupNameToId(fLastGroupId++, ourName);

  1796.             fUsedGroupNames.append(groupNameToId);

  1797. 

  1798.             callback(CALLBACK_PATCHBAY_CLIENT_ADDED, 0, groupNameToId.id, PATCHBAY_ICON_CARLA, 0.0f, ourName);

  1799.         }

  1800. 

  1801.         if (const char** ports = jackbridge_get_ports(fClient, nullptr, nullptr, 0))

  1802.         {

  1803.             for (int i=0; ports[i] != nullptr; ++i)

  1804.             {

  1805.                 jack_port_t* const jackPort(jackbridge_port_by_name(fClient, ports[i]));

  1806.                 const char*  const portName(jackbridge_port_short_name(jackPort));

  1807.                 const char*  const fullPortName(ports[i]);

  1808. 

  1809.                 CARLA_ASSERT(jackPort != nullptr);

  1810.                 CARLA_ASSERT(portName != nullptr);

  1811. 

  1812.                 if (jackPort == nullptr)

  1813.                     continue;

  1814.                 if (portName == nullptr)

  1815.                     continue;

  1816. 

  1817.                 const int jackPortFlags(jackbridge_port_flags(jackPort));

  1818. 

  1819.                 const size_t groupNameSize(std::strstr(fullPortName, portName) - fullPortName - 1);

  1820.                 char         groupName[groupNameSize+1];

  1821.                 int          groupId = -1;

  1822. 

  1823.                 carla_copy<char>(groupName, fullPortName, groupNameSize);

  1824.                 groupName[groupNameSize] = '\0';

  1825. 

  1826.                 if (parsedGroups.contains(QString(groupName)))

  1827.                 {

  1828.                     groupId = getGroupId(groupName);

  1829.                     CARLA_ASSERT(groupId != -1);

  1830.                 }

  1831.                 else

  1832.                 {

  1833.                     groupId = fLastGroupId++;

  1834.                     parsedGroups.append(groupName);

  1835. 

  1836.                     GroupNameToId groupNameToId(groupId, groupName);

  1837.                     fUsedGroupNames.append(groupNameToId);

  1838. 

  1839.                     PatchbayIconType groupIcon = PATCHBAY_ICON_APPLICATION;

  1840. 

  1841.                     void*  data = nullptr;

  1842.                     size_t dataSize = 0;

  1843. 

  1844.                     if (jackbridge_custom_get_data(fClient, groupName, URI_CANVAS_ICON, &data, &dataSize) && data != nullptr && dataSize != 0)

  1845.                     {

  1846.                         const char* const icon((const char*)data);

  1847.                         CARLA_ASSERT(std::strlen(icon)+1 == dataSize);

  1848. 

  1849.                         if (std::strcmp(icon, "app") == 0 || std::strcmp(icon, "application") == 0)

  1850.                             groupIcon = PATCHBAY_ICON_APPLICATION;

  1851.                         else if (std::strcmp(icon, "hardware") == 0)

  1852.                             groupIcon = PATCHBAY_ICON_HARDWARE;

  1853.                         else if (std::strcmp(icon, "carla") == 0)

  1854.                             groupIcon = PATCHBAY_ICON_CARLA;

  1855.                         else if (std::strcmp(icon, "distrho") == 0)

  1856.                             groupIcon = PATCHBAY_ICON_DISTRHO;

  1857.                         else if (std::strcmp(icon, "file") == 0)

  1858.                             groupIcon = PATCHBAY_ICON_FILE;

  1859.                         else if (std::strcmp(icon, "plugin") == 0)

  1860.                             groupIcon = PATCHBAY_ICON_PLUGIN;

  1861.                     }

  1862.                     else if (jackPortFlags & JackPortIsPhysical)

  1863.                         groupIcon = PATCHBAY_ICON_HARDWARE;

  1864. 

  1865.                     callback(CALLBACK_PATCHBAY_CLIENT_ADDED, 0, groupId, groupIcon, 0.0f, groupName);

  1866.                 }

  1867. 

  1868.                 bool portIsInput = (jackPortFlags & JackPortIsInput);

  1869.                 bool portIsAudio = (std::strcmp(jackbridge_port_type(jackPort), JACK_DEFAULT_AUDIO_TYPE) == 0);

  1870.                 bool portIsCV    = (jackPortFlags & JackPortIsControlVoltage);

  1871. 

  1872.                 unsigned int canvasPortFlags = 0x0;

  1873.                 canvasPortFlags |= portIsInput ? PATCHBAY_PORT_IS_INPUT : PATCHBAY_PORT_IS_OUTPUT;

  1874.                 canvasPortFlags |= portIsAudio ? PATCHBAY_PORT_IS_AUDIO : PATCHBAY_PORT_IS_MIDI;

  1875. 

  1876.                 if (portIsAudio && portIsCV)

  1877.                     canvasPortFlags |= PATCHBAY_PORT_IS_CV;

  1878. 

  1879.                 PortNameToId portNameToId(groupId, fLastPortId++, portName, fullPortName);

  1880.                 fUsedPortNames.append(portNameToId);

  1881. 

  1882.                 callback(CALLBACK_PATCHBAY_PORT_ADDED, 0, groupId, portNameToId.portId, canvasPortFlags, portName);

  1883.             }

  1884. 

  1885.             jackbridge_free(ports);

  1886.         }

  1887. 

  1888.         // query connections, after all ports are in place

  1889.         if (const char** ports = jackbridge_get_ports(fClient, nullptr, nullptr, JackPortIsOutput))

  1890.         {

  1891.             for (int i=0; ports[i] != nullptr; ++i)

  1892.             {

  1893.                 jack_port_t* const jackPort(jackbridge_port_by_name(fClient, ports[i]));

  1894.                 const char*  const fullPortName(ports[i]);

  1895. 

  1896.                 CARLA_ASSERT(jackPort != nullptr);

  1897. 

  1898.                 if (jackPort == nullptr)

  1899.                     continue;

  1900. 

  1901.                 const int thisPortId(getPortId(fullPortName));

  1902. 

  1903.                 if (thisPortId == -1)

  1904.                     continue;

  1905. 

  1906.                 if (const char** connections = jackbridge_port_get_connections(jackPort))

  1907.                 {

  1908.                     for (int j=0; connections[j] != nullptr; ++j)

  1909.                     {

  1910.                         const int targetPortId(getPortId(connections[j]));

  1911. 

  1912.                         ConnectionToId connectionToId(fLastConnectionId++, thisPortId, targetPortId);

  1913.                         fUsedConnections.append(connectionToId);

  1914. 

  1915.                         callback(CALLBACK_PATCHBAY_CONNECTION_ADDED, 0, connectionToId.id, thisPortId, targetPortId, nullptr);

  1916.                     }

  1917. 

  1918.                     jackbridge_free(connections);

  1919.                 }

  1920.             }

  1921. 

  1922.             jackbridge_free(ports);

  1923.         }

  1924.     }

  1925. #endif

  1926. 

  1927.     // -------------------------------------

  1928. 

  1929.     void processPlugin(CarlaPlugin* const plugin, const uint32_t nframes)

  1930.     {

  1931.         const uint32_t inCount(plugin->audioInCount());

  1932.         const uint32_t outCount(plugin->audioOutCount());

  1933. 

  1934.         float* inBuffer[inCount];

  1935.         float* outBuffer[outCount];

  1936. 

  1937.         float inPeaks[2] = { 0.0f };

  1938.         float outPeaks[2] = { 0.0f };

  1939. 

  1940.         for (uint32_t i=0; i < inCount; ++i)

  1941.         {

  1942.             CarlaEngineAudioPort* const port(CarlaPluginGetAudioInPort(plugin, i));

  1943.             inBuffer[i] = port->getBuffer();

  1944.         }

  1945. 

  1946.         for (uint32_t i=0; i < outCount; ++i)

  1947.         {

  1948.             CarlaEngineAudioPort* const port(CarlaPluginGetAudioOutPort(plugin, i));

  1949.             outBuffer[i] = port->getBuffer();

  1950.         }

  1951. 

  1952.         for (uint32_t i=0; i < inCount && i < 2; ++i)

  1953.         {

  1954.             for (uint32_t j=0; j < nframes; ++j)

  1955.             {

  1956.                 const float absV(std::abs(inBuffer[i][j]));

  1957. 

  1958.                 if (absV > inPeaks[i])

  1959.                     inPeaks[i] = absV;

  1960.             }

  1961.         }

  1962. 

  1963.         plugin->process(inBuffer, outBuffer, nframes);

  1964. 

  1965.         for (uint32_t i=0; i < outCount && i < 2; ++i)

  1966.         {

  1967.             for (uint32_t j=0; j < nframes; ++j)

  1968.             {

  1969.                 const float absV(std::abs(outBuffer[i][j]));

  1970. 

  1971.                 if (absV > outPeaks[i])

  1972.                     outPeaks[i] = absV;

  1973.             }

  1974.         }

  1975. 

  1976.         setPeaks(plugin->id(), inPeaks, outPeaks);

  1977.     }

  1978. 

  1979. #if 0

  1980.     void latencyPlugin(CarlaPlugin* const plugin, jack_latency_callback_mode_t mode)

  1981.     {

  1982.         const uint32_t inCount  = plugin->audioInCount();

  1983.         const uint32_t outCount = plugin->audioOutCount();

  1984. 

  1985.         jack_latency_range_t range;

  1986.         uint32_t pluginLatency = plugin->latency();

  1987. 

  1988.         if (pluginLatency == 0)

  1989.             return;

  1990. 

  1991.         if (mode == JackCaptureLatency)

  1992.         {

  1993.             for (uint32_t i=0; i < inCount; ++i)

  1994.             {

  1995.                 uint32_t aOutI = (i >= outCount) ? outCount : i;

  1996.                 jack_port_t* const portIn  = ((CarlaEngineJackAudioPort*)CarlaPluginGetAudioInPort(plugin, i))->kPort;

  1997.                 jack_port_t* const portOut = ((CarlaEngineJackAudioPort*)CarlaPluginGetAudioOutPort(plugin, aOutI))->kPort;

  1998. 

  1999.                 jackbridge_port_get_latency_range(portIn, mode, &range);

  2000.                 range.min += pluginLatency;

  2001.                 range.max += pluginLatency;

  2002.                 jackbridge_port_set_latency_range(portOut, mode, &range);

  2003.             }

  2004.         }

  2005.         else

  2006.         {

  2007.             for (uint32_t i=0; i < outCount; ++i)

  2008.             {

  2009.                 uint32_t aInI = (i >= inCount) ? inCount : i;

  2010.                 jack_port_t* const portIn  = ((CarlaEngineJackAudioPort*)CarlaPluginGetAudioInPort(plugin, aInI))->kPort;

  2011.                 jack_port_t* const portOut = ((CarlaEngineJackAudioPort*)CarlaPluginGetAudioOutPort(plugin, i))->kPort;

  2012. 

  2013.                 jackbridge_port_get_latency_range(portOut, mode, &range);

  2014.                 range.min += pluginLatency;

  2015.                 range.max += pluginLatency;

  2016.                 jackbridge_port_set_latency_range(portIn, mode, &range);

  2017.             }

  2018.         }

  2019.     }

  2020. #endif

  2021. 

  2022.     // -------------------------------------

  2023. 

  2024.     #define handlePtr ((CarlaEngineJack*)arg)

  2025. 

  2026.     static int carla_jack_srate_callback(jack_nframes_t newSampleRate, void* arg)

  2027.     {

  2028.         handlePtr->handleJackSampleRateCallback(newSampleRate);

  2029.         return 0;

  2030.     }

  2031. 

  2032.     static int carla_jack_bufsize_callback(jack_nframes_t newBufferSize, void* arg)

  2033.     {

  2034.         handlePtr->handleJackBufferSizeCallback(newBufferSize);

  2035.         return 0;

  2036.     }

  2037. 

  2038.     static void carla_jack_freewheel_callback(int starting, void* arg)

  2039.     {

  2040.         handlePtr->handleJackFreewheelCallback(bool(starting));

  2041.     }

  2042. 

  2043.     static int carla_jack_process_callback(jack_nframes_t nframes, void* arg)

  2044.     {

  2045.         handlePtr->handleJackProcessCallback(nframes);

  2046.         return 0;

  2047.     }

  2048. 

  2049. #if 0

  2050.     static void carla_jack_latency_callback(jack_latency_callback_mode_t mode, void* arg)

  2051.     {

  2052.         handlePtr->handleJackLatencyCallback(mode);

  2053.     }

  2054. #endif

  2055. 

  2056. #ifndef BUILD_BRIDGE

  2057.     static void carla_jack_client_registration_callback(const char* name, int reg, void* arg)

  2058.     {

  2059.         handlePtr->handleJackClientRegistrationCallback(name, (reg != 0));

  2060.     }

  2061. 

  2062.     static void carla_jack_port_registration_callback(jack_port_id_t port, int reg, void* arg)

  2063.     {

  2064.         handlePtr->handleJackPortRegistrationCallback(port, (reg != 0));

  2065.     }

  2066. 

  2067.     static void carla_jack_port_connect_callback(jack_port_id_t a, jack_port_id_t b, int connect, void* arg)

  2068.     {

  2069.         handlePtr->handleJackPortConnectCallback(a, b, (connect != 0));

  2070.     }

  2071. 

  2072.     static int carla_jack_port_rename_callback(jack_port_id_t port, const char* oldName, const char* newName, void* arg)

  2073.     {

  2074.         handlePtr->handleJackPortRenameCallback(port, oldName, newName);

  2075.         return 0;

  2076.     }

  2077. #endif

  2078. 

  2079.     static void carla_jack_shutdown_callback(void* arg)

  2080.     {

  2081.         handlePtr->handleJackShutdownCallback();

  2082.     }

  2083. 

  2084.     #undef handlePtr

  2085. 

  2086.     // -------------------------------------

  2087. 

  2088. #ifndef BUILD_BRIDGE

  2089.     static int carla_jack_process_callback_plugin(jack_nframes_t nframes, void* arg)

  2090.     {

  2091.         CarlaPlugin* const plugin = (CarlaPlugin*)arg;

  2092. 

  2093.         if (plugin != nullptr && plugin->enabled() && plugin->tryLock())

  2094.         {

  2095.             CarlaEngineJack* const engine = (CarlaEngineJack*)CarlaPluginGetEngine(plugin);

  2096. 

  2097.             plugin->initBuffers();

  2098.             engine->saveTransportInfo();

  2099.             engine->processPlugin(plugin, nframes);

  2100.             plugin->unlock();

  2101.         }

  2102.         else

  2103.             carla_stdout("Plugin not enabled or locked");

  2104. 

  2105.         return 0;

  2106.     }

  2107. 

  2108. # if 0

  2109.     static void carla_jack_latency_callback_plugin(jack_latency_callback_mode_t mode, void* arg)

  2110.     {

  2111.         CarlaPlugin* const plugin = (CarlaPlugin*)arg;

  2112. 

  2113.         if (plugin != nullptr && plugin->enabled())

  2114.         {

  2115.             CarlaEngineJack* const engine = (CarlaEngineJack*)CarlaPluginGetEngine(plugin);

  2116. 

  2117.             engine->latencyPlugin(plugin, mode);

  2118.         }

  2119.     }

  2120. # endif

  2121. #endif

  2122. 

  2123.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineJack)

  2124. };

  2125. 

  2126. // -----------------------------------------

  2127. 

  2128. CarlaEngine* CarlaEngine::newJack()

  2129. {

  2130.     return new CarlaEngineJack();

  2131. }

  2132. 

  2133. // -----------------------------------------

  2134. 

  2135. CARLA_BACKEND_END_NAMESPACE