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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.         fGroupIconsChanged.clear();

  635. #endif

  636.     }

  637. 

  638.     // -------------------------------------------------------------------

  639.     // Maximum values

  640. 

  641.     unsigned int maxClientNameSize() const override

  642.     {

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

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

  645. 

  646.         return CarlaEngine::maxClientNameSize();

  647.     }

  648. 

  649.     unsigned int maxPortNameSize() const override

  650.     {

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

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

  653. 

  654.         return CarlaEngine::maxPortNameSize();

  655.     }

  656. 

  657.     // -------------------------------------------------------------------

  658.     // Virtual, per-engine type calls

  659. 

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

  661.     {

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

  663. 

  664.         fFreewheel      = false;

  665.         fTransportState = JackTransportStopped;

  666. 

  667.         carla_zeroStruct<jack_position_t>(fTransportPos);

  668. 

  669. #ifndef BUILD_BRIDGE

  670.         fLastGroupId = 0;

  671.         fLastPortId  = 0;

  672.         fLastConnectionId = 0;

  673. 

  674.         fUsedGroupNames.clear();

  675.         fUsedPortNames.clear();

  676.         fUsedConnections.clear();

  677.         fGroupIconsChanged.clear();

  678. 

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

  680. 

  681.         if (fClient != nullptr)

  682.         {

  683.             fBufferSize = jackbridge_get_buffer_size(fClient);

  684.             fSampleRate = jackbridge_get_sample_rate(fClient);

  685. 

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

  687.             jackbridge_custom_set_data_appearance_callback(fClient, carla_jack_custom_appearance_callback, this);

  688. 

  689.             jackbridge_set_buffer_size_callback(fClient, carla_jack_bufsize_callback, this);

  690.             jackbridge_set_sample_rate_callback(fClient, carla_jack_srate_callback, this);

  691.             jackbridge_set_freewheel_callback(fClient, carla_jack_freewheel_callback, this);

  692.             jackbridge_set_process_callback(fClient, carla_jack_process_callback, this);

  693.             jackbridge_on_shutdown(fClient, carla_jack_shutdown_callback, this);

  694. # if 0

  695.             jackbridge_set_latency_callback(fClient, carla_jack_latency_callback, this);

  696. # endif

  697. 

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

  699. 

  700.             initJackPatchbay(jackClientName);

  701. 

  702.             jackbridge_set_client_registration_callback(fClient, carla_jack_client_registration_callback, this);

  703.             jackbridge_set_port_registration_callback(fClient, carla_jack_port_registration_callback, this);

  704.             jackbridge_set_port_connect_callback(fClient, carla_jack_port_connect_callback, this);

  705.             jackbridge_set_port_rename_callback(fClient, carla_jack_port_rename_callback, this);

  706. 

  707.             if (fOptions.processMode == PROCESS_MODE_CONTINUOUS_RACK)

  708.             {

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

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

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

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

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

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

  715.             }

  716. 

  717.             if (jackbridge_activate(fClient))

  718.             {

  719.                 CarlaEngine::init(jackClientName);

  720.                 return true;

  721.             }

  722.             else

  723.             {

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

  725.                 jackbridge_client_close(fClient);

  726.                 fClient = nullptr;

  727.             }

  728.         }

  729.         else

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

  731. 

  732.         return false;

  733. #else

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

  735.         {

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

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

  738.             {

  739.                 fBufferSize = jackbridge_get_buffer_size(tmpClient);

  740.                 fSampleRate = jackbridge_get_sample_rate(tmpClient);

  741. 

  742.                 jackbridge_client_close(tmpClient);

  743.             }

  744.         }

  745. 

  746.         return CarlaEngine::init(clientName);

  747. #endif

  748.     }

  749. 

  750.     bool close() override

  751.     {

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

  753.         CarlaEngine::close();

  754. 

  755. #ifdef BUILD_BRIDGE

  756.         fClient  = nullptr;

  757.         fHasQuit = true;

  758.         return true;

  759. #else

  760.         if (jackbridge_deactivate(fClient))

  761.         {

  762.             if (fOptions.processMode == PROCESS_MODE_CONTINUOUS_RACK)

  763.             {

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

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

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

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

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

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

  770.             }

  771. 

  772.             if (jackbridge_client_close(fClient))

  773.             {

  774.                 fClient = nullptr;

  775.                 return true;

  776.             }

  777.             else

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

  779.         }

  780.         else

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

  782. 

  783.         fClient = nullptr;

  784. 

  785.         fUsedGroupNames.clear();

  786.         fUsedPortNames.clear();

  787.         fUsedConnections.clear();

  788.         fGroupIconsChanged.clear();

  789. #endif

  790.         return false;

  791.     }

  792. 

  793.     void idle() override

  794.     {

  795.         CarlaEngine::idle();

  796. 

  797.         if (fGroupIconsChanged.count() == 0)

  798.             return;

  799. 

  800.         static bool checkIcons = false;

  801. 

  802.         if (! checkIcons)

  803.         {

  804.             checkIcons = true; // check them next time

  805.             return;

  806.         }

  807. 

  808.         checkIcons = false;

  809. 

  810.         void*  data;

  811.         size_t dataSize;

  812. 

  813.         QList<int> groupIconsCopy(fGroupIconsChanged);

  814.         fGroupIconsChanged.clear();

  815. 

  816.         foreach (const int& groupId, groupIconsCopy)

  817.         {

  818.             const char* const groupName(getGroupName(groupId));

  819. 

  820.             data = nullptr;

  821.             dataSize = 0;

  822. 

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

  824.             {

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

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

  827. 

  828.                 PatchbayIconType groupIcon;

  829. 

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

  831.                     groupIcon = PATCHBAY_ICON_APPLICATION;

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

  833.                     groupIcon = PATCHBAY_ICON_HARDWARE;

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

  835.                     groupIcon = PATCHBAY_ICON_CARLA;

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

  837.                     groupIcon = PATCHBAY_ICON_DISTRHO;

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

  839.                     groupIcon = PATCHBAY_ICON_FILE;

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

  841.                     groupIcon = PATCHBAY_ICON_PLUGIN;

  842.                 else

  843.                     groupIcon = PATCHBAY_ICON_APPLICATION;

  844. 

  845.                 callback(CALLBACK_PATCHBAY_ICON_CHANGED, 0, groupId, groupIcon, 0.0f, nullptr);

  846.             }

  847.         }

  848.     }

  849. 

  850.     bool isRunning() const override

  851.     {

  852. #ifdef BUILD_BRIDGE

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

  854. #else

  855.         return (fClient != nullptr);

  856. #endif

  857.     }

  858. 

  859.     bool isOffline() const override

  860.     {

  861.         return fFreewheel;

  862.     }

  863. 

  864.     EngineType type() const override

  865.     {

  866.         return kEngineTypeJack;

  867.     }

  868. 

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

  870.     {

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

  872.         jack_client_t* client = nullptr;

  873. 

  874. #ifdef BUILD_BRIDGE

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

  876. 

  877.         fBufferSize = jackbridge_get_buffer_size(client);

  878.         fSampleRate = jackbridge_get_sample_rate(client);

  879. 

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

  881.         jackbridge_custom_set_data_appearance_callback(fClient, carla_jack_custom_appearance_callback, this);

  882. 

  883.         jackbridge_set_buffer_size_callback(client, carla_jack_bufsize_callback, this);

  884.         jackbridge_set_sample_rate_callback(client, carla_jack_srate_callback, this);

  885.         jackbridge_set_freewheel_callback(client, carla_jack_freewheel_callback, this);

  886.         jackbridge_set_process_callback(client, carla_jack_process_callback, this);

  887.         jackbridge_on_shutdown(client, carla_jack_shutdown_callback, this);

  888. # if 0

  889.         jackbridge_set_latency_callback(client, carla_jack_latency_callback, this);

  890. # endif

  891. #else

  892.         if (fOptions.processMode == PROCESS_MODE_SINGLE_CLIENT)

  893.         {

  894.             client = fClient;

  895.         }

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

  897.         {

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

  899. 

  900.             CARLA_ASSERT(client != nullptr);

  901. 

  902.             if (client == nullptr)

  903.                 return nullptr;

  904. 

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

  906. 

  907.             jackbridge_set_process_callback(client, carla_jack_process_callback_plugin, plugin);

  908. # if 0

  909.             jackbridge_set_latency_callback(client, carla_jack_latency_callback_plugin, plugin);

  910. # endif

  911.         }

  912. #endif

  913. 

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

  915.     }

  916. 

  917. #ifndef BUILD_BRIDGE

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

  919.     {

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

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

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

  923.         CARLA_ASSERT(newName != nullptr);

  924. 

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

  926.         {

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

  928.             return nullptr;

  929.         }

  930. 

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

  932. 

  933.         if (plugin == nullptr)

  934.         {

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

  936.             return nullptr;

  937.         }

  938. 

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

  940. 

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

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

  943. 

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

  945. 

  946.         // JACK client rename

  947.         if (fOptions.processMode == PROCESS_MODE_MULTIPLE_CLIENTS)

  948.         {

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

  950. 

  951.             if (bridge.client_rename_ptr != nullptr)

  952.             {

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

  954.             }

  955.             else

  956.             {

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

  958.                 needsReinit = true;

  959. 

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

  961.                 {

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

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

  964. 

  965.                     // close old client

  966.                     plugin->setEnabled(false);

  967. 

  968.                     if (client->isActive())

  969.                         client->deactivate();

  970. 

  971.                     plugin->clearBuffers();

  972. 

  973.                     jackbridge_client_close(client->kClient);

  974. 

  975.                     // set new client data

  976.                     name = jackbridge_get_client_name(jclient);

  977. 

  978.                     jackbridge_set_process_callback(jclient, carla_jack_process_callback_plugin, plugin);

  979. # if 0

  980.                     jackbridge_set_latency_callback(jclient, carla_jack_latency_callback_plugin, plugin);

  981. # endif

  982. 

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

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

  985.                 }

  986.             }

  987.         }

  988. 

  989.         if (name == nullptr)

  990.             return nullptr;

  991. 

  992.         // Rename

  993.         plugin->setName(name);

  994. 

  995.         if (needsReinit)

  996.         {

  997.             // reload plugin to recreate its ports

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

  999.             plugin->reload();

  1000.             plugin->loadSaveState(saveState);

  1001.         }

  1002. 

  1003.         return name;

  1004.     }

  1005. 

  1006.     // -------------------------------------------------------------------

  1007.     // Patchbay

  1008. 

  1009.     bool patchbayConnect(int portA, int portB) override

  1010.     {

  1011.         CARLA_ASSERT(fClient != nullptr);

  1012. 

  1013.         if (fClient == nullptr)

  1014.         {

  1015.             setLastError("Invalid JACK client");

  1016.             return false;

  1017.         }

  1018. 

  1019.         char portNameA[STR_MAX+1];

  1020.         char portNameB[STR_MAX+1];

  1021.         getFullPortName(portA, portNameA);

  1022.         getFullPortName(portB, portNameB);

  1023. 

  1024.         if (! jackbridge_connect(fClient, portNameA, portNameB))

  1025.         {

  1026.             setLastError("JACK operation failed");

  1027.             return false;

  1028.         }

  1029. 

  1030.         return true;

  1031.     }

  1032. 

  1033.     bool patchbayDisconnect(int connectionId) override

  1034.     {

  1035.         CARLA_ASSERT(fClient != nullptr);

  1036. 

  1037.         if (fClient == nullptr)

  1038.         {

  1039.             setLastError("Invalid JACK client");

  1040.             return false;

  1041.         }

  1042. 

  1043.         foreach (const ConnectionToId& connectionToId, fUsedConnections)

  1044.         {

  1045.             if (connectionToId.id == connectionId)

  1046.             {

  1047.                 char portNameOut[STR_MAX+1];

  1048.                 char portNameIn[STR_MAX+1];

  1049. 

  1050.                 getFullPortName(connectionToId.portOut, portNameOut);

  1051.                 getFullPortName(connectionToId.portIn, portNameIn);

  1052. 

  1053.                 if (! jackbridge_disconnect(fClient, portNameOut, portNameIn))

  1054.                 {

  1055.                     setLastError("JACK operation failed");

  1056.                     return false;

  1057.                 }

  1058. 

  1059.                 return true;

  1060.             }

  1061.         }

  1062. 

  1063.         setLastError("Failed to find the requested connection");

  1064.         return false;

  1065.     }

  1066. 

  1067.     void patchbayRefresh() override

  1068.     {

  1069.         CARLA_ASSERT(fClient != nullptr);

  1070. 

  1071.         if (fClient == nullptr)

  1072.             return;

  1073. 

  1074.         fLastGroupId = 0;

  1075.         fLastPortId  = 0;

  1076.         fLastConnectionId = 0;

  1077. 

  1078.         fUsedGroupNames.clear();

  1079.         fUsedPortNames.clear();

  1080.         fUsedConnections.clear();

  1081.         fGroupIconsChanged.clear();

  1082. 

  1083.         initJackPatchbay(jackbridge_get_client_name(fClient));

  1084.     }

  1085. #endif

  1086. 

  1087.     // -------------------------------------------------------------------

  1088.     // Transport

  1089. 

  1090.     void transportPlay() override

  1091.     {

  1092.         if (fOptions.transportMode == TRANSPORT_MODE_INTERNAL)

  1093.             CarlaEngine::transportPlay();

  1094.         else if (fClient != nullptr)

  1095.             jackbridge_transport_start(fClient);

  1096.     }

  1097. 

  1098.     void transportPause() override

  1099.     {

  1100.         if (fOptions.transportMode == TRANSPORT_MODE_INTERNAL)

  1101.             CarlaEngine::transportPause();

  1102.         else if (fClient != nullptr)

  1103.             jackbridge_transport_stop(fClient);

  1104.     }

  1105. 

  1106.     void transportRelocate(const uint32_t frame) override

  1107.     {

  1108.         if (fOptions.transportMode == TRANSPORT_MODE_INTERNAL)

  1109.             CarlaEngine::transportRelocate(frame);

  1110.         else if (fClient != nullptr)

  1111.             jackbridge_transport_locate(fClient, frame);

  1112.     }

  1113. 

  1114.     // -------------------------------------

  1115. 

  1116. protected:

  1117.     void handleCustomAppearanceCallback(const char* client_name, const char* key, jack_custom_change_t change)

  1118.     {

  1119.         if ((change == JackCustomAdded || change == JackCustomReplaced) && std::strcmp(key, URI_CANVAS_ICON) == 0)

  1120.         {

  1121.             const int groupId (getGroupId(client_name));

  1122. 

  1123.             if (groupId == -1)

  1124.                 return;

  1125. 

  1126.             fGroupIconsChanged.append(groupId);

  1127.         }

  1128.     }

  1129. 

  1130.     void handleJackBufferSizeCallback(const uint32_t newBufferSize)

  1131.     {

  1132.         if (fBufferSize == newBufferSize)

  1133.             return;

  1134. 

  1135.         fBufferSize = newBufferSize;

  1136.         bufferSizeChanged(newBufferSize);

  1137.     }

  1138. 

  1139.     void handleJackSampleRateCallback(const double newSampleRate)

  1140.     {

  1141.         if (fSampleRate == newSampleRate)

  1142.             return;

  1143. 

  1144.         fSampleRate = newSampleRate;

  1145.         sampleRateChanged(newSampleRate);

  1146.     }

  1147. 

  1148.     void handleJackFreewheelCallback(const bool isFreewheel)

  1149.     {

  1150.         fFreewheel = isFreewheel;

  1151.     }

  1152. 

  1153.     void saveTransportInfo()

  1154.     {

  1155.         if (fOptions.transportMode != TRANSPORT_MODE_JACK)

  1156.             return;

  1157. 

  1158.         fTransportPos.unique_1 = fTransportPos.unique_2 + 1; // invalidate

  1159. 

  1160.         fTransportState = jackbridge_transport_query(fClient, &fTransportPos);

  1161. 

  1162.         fTimeInfo.playing = (fTransportState == JackTransportRolling);

  1163. 

  1164.         if (fTransportPos.unique_1 == fTransportPos.unique_2)

  1165.         {

  1166.             fTimeInfo.frame = fTransportPos.frame;

  1167.             fTimeInfo.usecs = fTransportPos.usecs;

  1168. 

  1169.             if (fTransportPos.valid & JackPositionBBT)

  1170.             {

  1171.                 fTimeInfo.valid              = EngineTimeInfo::ValidBBT;

  1172.                 fTimeInfo.bbt.bar            = fTransportPos.bar;

  1173.                 fTimeInfo.bbt.beat           = fTransportPos.beat;

  1174.                 fTimeInfo.bbt.tick           = fTransportPos.tick;

  1175.                 fTimeInfo.bbt.barStartTick   = fTransportPos.bar_start_tick;

  1176.                 fTimeInfo.bbt.beatsPerBar    = fTransportPos.beats_per_bar;

  1177.                 fTimeInfo.bbt.beatType       = fTransportPos.beat_type;

  1178.                 fTimeInfo.bbt.ticksPerBeat   = fTransportPos.ticks_per_beat;

  1179.                 fTimeInfo.bbt.beatsPerMinute = fTransportPos.beats_per_minute;

  1180.             }

  1181.             else

  1182.                 fTimeInfo.valid = 0x0;

  1183.         }

  1184.         else

  1185.         {

  1186.             fTimeInfo.frame = 0;

  1187.             fTimeInfo.valid = 0x0;

  1188.         }

  1189.     }

  1190. 

  1191.     void handleJackProcessCallback(const uint32_t nframes)

  1192.     {

  1193.         saveTransportInfo();

  1194. 

  1195. #ifndef BUILD_BRIDGE

  1196.         if (kData->curPluginCount == 0)

  1197.         {

  1198.             // pass-through

  1199.             if (fOptions.processMode == PROCESS_MODE_CONTINUOUS_RACK)

  1200.             {

  1201.                 float* const audioIn1  = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioIn1], nframes);

  1202.                 float* const audioIn2  = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioIn2], nframes);

  1203.                 float* const audioOut1 = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioOut1], nframes);

  1204.                 float* const audioOut2 = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioOut2], nframes);

  1205.                 void*  const eventOut  = jackbridge_port_get_buffer(fRackPorts[kRackPortEventOut], nframes);

  1206. 

  1207.                 CARLA_ASSERT(audioIn1 != nullptr);

  1208.                 CARLA_ASSERT(audioIn2 != nullptr);

  1209.                 CARLA_ASSERT(audioOut1 != nullptr);

  1210.                 CARLA_ASSERT(audioOut2 != nullptr);

  1211.                 CARLA_ASSERT(eventOut != nullptr);

  1212. 

  1213.                 carla_copyFloat(audioOut1, audioIn1, nframes);

  1214.                 carla_copyFloat(audioOut2, audioIn2, nframes);

  1215.                 jackbridge_midi_clear_buffer(eventOut);

  1216.             }

  1217. 

  1218.             return proccessPendingEvents();

  1219.         }

  1220. #endif

  1221. 

  1222. #ifdef BUILD_BRIDGE

  1223.         CarlaPlugin* const plugin(getPluginUnchecked(0));

  1224. 

  1225.         if (plugin != nullptr && plugin->enabled() && plugin->tryLock())

  1226.         {

  1227.             plugin->initBuffers();

  1228.             processPlugin(plugin, nframes);

  1229.             plugin->unlock();

  1230.         }

  1231. #else

  1232.         if (fOptions.processMode == PROCESS_MODE_SINGLE_CLIENT)

  1233.         {

  1234.             for (unsigned int i=0; i < kData->curPluginCount; ++i)

  1235.             {

  1236.                 CarlaPlugin* const plugin(getPluginUnchecked(i));

  1237. 

  1238.                 if (plugin != nullptr && plugin->enabled() && plugin->tryLock())

  1239.                 {

  1240.                     plugin->initBuffers();

  1241.                     processPlugin(plugin, nframes);

  1242.                     plugin->unlock();

  1243.                 }

  1244.             }

  1245.         }

  1246.         else if (fOptions.processMode == PROCESS_MODE_CONTINUOUS_RACK)

  1247.         {

  1248.             // get buffers from jack

  1249.             float* const audioIn1  = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioIn1], nframes);

  1250.             float* const audioIn2  = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioIn2], nframes);

  1251.             float* const audioOut1 = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioOut1], nframes);

  1252.             float* const audioOut2 = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioOut2], nframes);

  1253.             void* const  eventIn   = jackbridge_port_get_buffer(fRackPorts[kRackPortEventIn],  nframes);

  1254.             void* const  eventOut  = jackbridge_port_get_buffer(fRackPorts[kRackPortEventOut], nframes);

  1255. 

  1256.             // assert buffers

  1257.             CARLA_ASSERT(audioIn1 != nullptr);

  1258.             CARLA_ASSERT(audioIn2 != nullptr);

  1259.             CARLA_ASSERT(audioOut1 != nullptr);

  1260.             CARLA_ASSERT(audioOut2 != nullptr);

  1261.             CARLA_ASSERT(eventIn != nullptr);

  1262.             CARLA_ASSERT(eventOut != nullptr);

  1263. 

  1264.             // create audio buffers

  1265.             float* inBuf[2]  = { audioIn1, audioIn2 };

  1266.             float* outBuf[2] = { audioOut1, audioOut2 };

  1267. 

  1268.             // initialize input events

  1269.             carla_zeroStruct<EngineEvent>(kData->bufEvents.in, INTERNAL_EVENT_COUNT);

  1270.             {

  1271.                 uint32_t engineEventIndex = 0;

  1272. 

  1273.                 jack_midi_event_t jackEvent;

  1274.                 const uint32_t jackEventCount(jackbridge_midi_get_event_count(eventIn));

  1275. 

  1276.                 for (uint32_t jackEventIndex=0; jackEventIndex < jackEventCount; ++jackEventIndex)

  1277.                 {

  1278.                     if (jackbridge_midi_event_get(&jackEvent, eventIn, jackEventIndex) != 0)

  1279.                         continue;

  1280. 

  1281.                     EngineEvent* const engineEvent(&kData->bufEvents.in[engineEventIndex++]);

  1282.                     engineEvent->clear();

  1283. 

  1284.                     const uint8_t midiStatus  = MIDI_GET_STATUS_FROM_DATA(jackEvent.buffer);

  1285.                     const uint8_t midiChannel = MIDI_GET_CHANNEL_FROM_DATA(jackEvent.buffer);

  1286. 

  1287.                     engineEvent->time    = jackEvent.time;

  1288.                     engineEvent->channel = midiChannel;

  1289. 

  1290.                     if (MIDI_IS_STATUS_CONTROL_CHANGE(midiStatus))

  1291.                     {

  1292.                         const uint8_t midiControl = jackEvent.buffer[1];

  1293.                         engineEvent->type         = kEngineEventTypeControl;

  1294. 

  1295.                         if (MIDI_IS_CONTROL_BANK_SELECT(midiControl))

  1296.                         {

  1297.                             const uint8_t midiBank  = jackEvent.buffer[2];

  1298. 

  1299.                             engineEvent->ctrl.type  = kEngineControlEventTypeMidiBank;

  1300.                             engineEvent->ctrl.param = midiBank;

  1301.                             engineEvent->ctrl.value = 0.0f;

  1302.                         }

  1303.                         else if (midiControl == MIDI_CONTROL_ALL_SOUND_OFF)

  1304.                         {

  1305.                             engineEvent->ctrl.type  = kEngineControlEventTypeAllSoundOff;

  1306.                             engineEvent->ctrl.param = 0;

  1307.                             engineEvent->ctrl.value = 0.0f;

  1308.                         }

  1309.                         else if (midiControl == MIDI_CONTROL_ALL_NOTES_OFF)

  1310.                         {

  1311.                             engineEvent->ctrl.type  = kEngineControlEventTypeAllNotesOff;

  1312.                             engineEvent->ctrl.param = 0;

  1313.                             engineEvent->ctrl.value = 0.0f;

  1314.                         }

  1315.                         else

  1316.                         {

  1317.                             const uint8_t midiValue = jackEvent.buffer[2];

  1318. 

  1319.                             engineEvent->ctrl.type  = kEngineControlEventTypeParameter;

  1320.                             engineEvent->ctrl.param = midiControl;

  1321.                             engineEvent->ctrl.value = float(midiValue)/127.0f;

  1322.                         }

  1323.                     }

  1324.                     else if (MIDI_IS_STATUS_PROGRAM_CHANGE(midiStatus))

  1325.                     {

  1326.                         const uint8_t midiProgram = jackEvent.buffer[1];

  1327.                         engineEvent->type         = kEngineEventTypeControl;

  1328. 

  1329.                         engineEvent->ctrl.type  = kEngineControlEventTypeMidiProgram;

  1330.                         engineEvent->ctrl.param = midiProgram;

  1331.                         engineEvent->ctrl.value = 0.0f;

  1332.                     }

  1333.                     else if (jackEvent.size <= 4)

  1334.                     {

  1335.                         engineEvent->type = kEngineEventTypeMidi;

  1336. 

  1337.                         carla_copy<uint8_t>(engineEvent->midi.data, jackEvent.buffer, jackEvent.size);

  1338. 

  1339.                         engineEvent->midi.data[0] = midiStatus;

  1340.                         engineEvent->midi.size    = static_cast<uint8_t>(jackEvent.size);

  1341.                     }

  1342. 

  1343.                     if (engineEventIndex >= INTERNAL_EVENT_COUNT)

  1344.                         break;

  1345.                 }

  1346.             }

  1347. 

  1348.             // process rack

  1349.             processRack(inBuf, outBuf, nframes);

  1350. 

  1351.             // output control

  1352.             {

  1353.                 jackbridge_midi_clear_buffer(eventOut);

  1354. 

  1355.                 for (unsigned short i=0; i < INTERNAL_EVENT_COUNT; ++i)

  1356.                 {

  1357.                     EngineEvent* const engineEvent = &kData->bufEvents.out[i];

  1358. 

  1359.                     uint8_t data[3] = { 0 };

  1360.                     uint8_t size    = 0;

  1361. 

  1362.                     switch (engineEvent->type)

  1363.                     {

  1364.                     case kEngineEventTypeNull:

  1365.                         break;

  1366. 

  1367.                     case kEngineEventTypeControl:

  1368.                     {

  1369.                         EngineControlEvent* const ctrlEvent = &engineEvent->ctrl;

  1370. 

  1371.                         if (ctrlEvent->type == kEngineControlEventTypeParameter && MIDI_IS_CONTROL_BANK_SELECT(ctrlEvent->param))

  1372.                         {

  1373.                             // FIXME?

  1374.                             ctrlEvent->type  = kEngineControlEventTypeMidiBank;

  1375.                             ctrlEvent->param = ctrlEvent->value;

  1376.                             ctrlEvent->value = 0.0f;

  1377.                         }

  1378. 

  1379.                         switch (ctrlEvent->type)

  1380.                         {

  1381.                         case kEngineControlEventTypeNull:

  1382.                             break;

  1383.                         case kEngineControlEventTypeParameter:

  1384.                             data[0] = MIDI_STATUS_CONTROL_CHANGE + engineEvent->channel;

  1385.                             data[1] = static_cast<uint8_t>(ctrlEvent->param);

  1386.                             data[2] = uint8_t(ctrlEvent->value * 127.0f);

  1387.                             size    = 3;

  1388.                             break;

  1389.                         case kEngineControlEventTypeMidiBank:

  1390.                             data[0] = MIDI_STATUS_CONTROL_CHANGE + engineEvent->channel;

  1391.                             data[1] = MIDI_CONTROL_BANK_SELECT;

  1392.                             data[2] = static_cast<uint8_t>(ctrlEvent->param);

  1393.                             size    = 3;

  1394.                             break;

  1395.                         case kEngineControlEventTypeMidiProgram:

  1396.                             data[0] = MIDI_STATUS_PROGRAM_CHANGE + engineEvent->channel;

  1397.                             data[1] = static_cast<uint8_t>(ctrlEvent->param);

  1398.                             size    = 2;

  1399.                             break;

  1400.                         case kEngineControlEventTypeAllSoundOff:

  1401.                             data[0] = MIDI_STATUS_CONTROL_CHANGE + engineEvent->channel;

  1402.                             data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1403.                             size    = 2;

  1404.                             break;

  1405.                         case kEngineControlEventTypeAllNotesOff:

  1406.                             data[0] = MIDI_STATUS_CONTROL_CHANGE + engineEvent->channel;

  1407.                             data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1408.                             size    = 2;

  1409.                             break;

  1410.                         }

  1411.                         break;

  1412.                     }

  1413. 

  1414.                     case kEngineEventTypeMidi:

  1415.                     {

  1416.                         EngineMidiEvent* const midiEvent = &engineEvent->midi;

  1417. 

  1418.                         data[0] = midiEvent->data[0];

  1419.                         data[1] = midiEvent->data[1];

  1420.                         data[2] = midiEvent->data[2];

  1421.                         size    = midiEvent->size;

  1422.                         break;

  1423.                     }

  1424.                     }

  1425. 

  1426.                     if (size > 0)

  1427.                         jackbridge_midi_event_write(eventOut, engineEvent->time, data, size);

  1428.                 }

  1429.             }

  1430.         }

  1431. #endif // ! BUILD_BRIDGE

  1432. 

  1433.         proccessPendingEvents();

  1434.     }

  1435. 

  1436. #if 0

  1437.     void handleJackLatencyCallback(const jack_latency_callback_mode_t mode)

  1438.     {

  1439.         if (fOptions.processMode != PROCESS_MODE_SINGLE_CLIENT)

  1440.             return;

  1441. 

  1442.         for (unsigned int i=0; i < kData->curPluginCount; ++i)

  1443.         {

  1444.             CarlaPlugin* const plugin = getPluginUnchecked(i);

  1445. 

  1446.             if (plugin && plugin->enabled())

  1447.                 latencyPlugin(plugin, mode);

  1448.         }

  1449.     }

  1450. #endif

  1451. 

  1452. #ifndef BUILD_BRIDGE

  1453.     void handleJackClientRegistrationCallback(const char* name, bool reg)

  1454.     {

  1455.         // do nothing on client registration, wait for first port

  1456.         if (reg) return;

  1457. 

  1458.         const int id(getGroupId(name)); // also checks name nullness

  1459. 

  1460.         if (id == -1)

  1461.             return;

  1462. 

  1463.         GroupNameToId groupNameId(id, name);

  1464.         fUsedGroupNames.removeAll(groupNameId);

  1465. 

  1466.         callback(CALLBACK_PATCHBAY_CLIENT_REMOVED, 0, id, 0, 0.0f, nullptr);

  1467.     }

  1468. 

  1469.     void handleJackPortRegistrationCallback(jack_port_id_t port, bool reg)

  1470.     {

  1471.         jack_port_t* const jackPort(jackbridge_port_by_id(fClient, port));

  1472.         const char*  const portName(jackbridge_port_short_name(jackPort));

  1473.         const char*  const fullPortName(jackbridge_port_name(jackPort));

  1474. 

  1475.         CARLA_ASSERT(jackPort != nullptr);

  1476.         CARLA_ASSERT(portName != nullptr);

  1477.         CARLA_ASSERT(fullPortName != nullptr);

  1478. 

  1479.         if (jackPort == nullptr)

  1480.             return;

  1481.         if (portName == nullptr)

  1482.             return;

  1483.         if (fullPortName == nullptr)

  1484.             return;

  1485. 

  1486.         const size_t groupNameSize(std::strstr(fullPortName, portName) - fullPortName - 1);

  1487.         char         groupName[groupNameSize+1];

  1488. 

  1489.         carla_copy<char>(groupName, fullPortName, groupNameSize);

  1490.         groupName[groupNameSize] = '\0';

  1491. 

  1492.         int groupId = getGroupId(groupName);

  1493. 

  1494.         if (reg)

  1495.         {

  1496.             const int jackPortFlags(jackbridge_port_flags(jackPort));

  1497. 

  1498.             if (groupId == -1)

  1499.             {

  1500.                 groupId = fLastGroupId++;

  1501. 

  1502.                 GroupNameToId groupNameToId(groupId, groupName);

  1503.                 fUsedGroupNames.append(groupNameToId);

  1504. 

  1505.                 callback(CALLBACK_PATCHBAY_CLIENT_ADDED, 0, groupId, PATCHBAY_ICON_APPLICATION, 0.0f, groupName);

  1506. 

  1507.                 fGroupIconsChanged.append(groupId);

  1508.             }

  1509. 

  1510.             bool portIsInput = (jackPortFlags & JackPortIsInput);

  1511.             bool portIsAudio = (std::strcmp(jackbridge_port_type(jackPort), JACK_DEFAULT_AUDIO_TYPE) == 0);

  1512.             bool portIsCV    = (jackPortFlags & JackPortIsControlVoltage);

  1513. 

  1514.             unsigned int canvasPortFlags = 0x0;

  1515.             canvasPortFlags |= portIsInput ? PATCHBAY_PORT_IS_INPUT : PATCHBAY_PORT_IS_OUTPUT;

  1516.             canvasPortFlags |= portIsAudio ? PATCHBAY_PORT_IS_AUDIO : PATCHBAY_PORT_IS_MIDI;

  1517. 

  1518.             if (portIsAudio && portIsCV)

  1519.                 canvasPortFlags |= PATCHBAY_PORT_IS_CV;

  1520. 

  1521.             PortNameToId portNameToId(groupId, fLastPortId++, portName, fullPortName);

  1522.             fUsedPortNames.append(portNameToId);

  1523. 

  1524.             callback(CALLBACK_PATCHBAY_PORT_ADDED, 0, groupId, portNameToId.portId, canvasPortFlags, portName);

  1525.         }

  1526.         else

  1527.         {

  1528.             const int portId(getPortId(fullPortName));

  1529. 

  1530.             CARLA_ASSERT(groupId != -1);

  1531.             CARLA_ASSERT(portId != -1);

  1532. 

  1533.             if (groupId == -1 || portId == -1)

  1534.                 return;

  1535. 

  1536.             PortNameToId portNameId(groupId, portId, portName, fullPortName);

  1537.             fUsedPortNames.removeOne(portNameId);

  1538. 

  1539.             callback(CALLBACK_PATCHBAY_PORT_REMOVED, 0, portId, 0, 0.0f, nullptr);

  1540.         }

  1541.     }

  1542. 

  1543.     void handleJackPortConnectCallback(jack_port_id_t a, jack_port_id_t b, bool connect)

  1544.     {

  1545.         jack_port_t* const jackPortA(jackbridge_port_by_id(fClient, a));

  1546.         jack_port_t* const jackPortB(jackbridge_port_by_id(fClient, b));

  1547.         const char*  const fullPortNameA(jackbridge_port_name(jackPortA));

  1548.         const char*  const fullPortNameB(jackbridge_port_name(jackPortB));

  1549. 

  1550.         CARLA_ASSERT(jackPortA != nullptr);

  1551.         CARLA_ASSERT(jackPortB != nullptr);

  1552.         CARLA_ASSERT(fullPortNameA != nullptr);

  1553.         CARLA_ASSERT(fullPortNameB != nullptr);

  1554. 

  1555.         if (jackPortA == nullptr)

  1556.             return;

  1557.         if (jackPortB == nullptr)

  1558.             return;

  1559.         if (fullPortNameA == nullptr)

  1560.             return;

  1561.         if (fullPortNameB == nullptr)

  1562.             return;

  1563. 

  1564.         const int portIdA(getPortId(fullPortNameA));

  1565.         const int portIdB(getPortId(fullPortNameB));

  1566. 

  1567.         if (portIdA == -1 || portIdB == -1)

  1568.             return;

  1569. 

  1570.         if (connect)

  1571.         {

  1572.             ConnectionToId connectionToId(fLastConnectionId++, portIdA, portIdB);

  1573.             fUsedConnections.append(connectionToId);

  1574. 

  1575.             callback(CALLBACK_PATCHBAY_CONNECTION_ADDED, 0, connectionToId.id, portIdA, portIdB, nullptr);

  1576.         }

  1577.         else

  1578.         {

  1579.             for (int i=0, count=fUsedConnections.count(); i < count; ++i)

  1580.             {

  1581.                 const ConnectionToId& connectionToId(fUsedConnections[i]);

  1582. 

  1583.                 if (connectionToId.portOut == portIdA && connectionToId.portIn == portIdB)

  1584.                 {

  1585.                     callback(CALLBACK_PATCHBAY_CONNECTION_REMOVED, 0, connectionToId.id, 0, 0.0f, nullptr);

  1586.                     fUsedConnections.takeAt(i);

  1587.                     break;

  1588.                 }

  1589.             }

  1590.         }

  1591.     }

  1592. 

  1593.     void handleJackPortRenameCallback(jack_port_id_t port, const char* oldName, const char* newName)

  1594.     {

  1595.         jack_port_t* const jackPort(jackbridge_port_by_id(fClient, port));

  1596.         const char*  const portName(jackbridge_port_short_name(jackPort));

  1597. 

  1598.         CARLA_ASSERT(jackPort != nullptr);

  1599.         CARLA_ASSERT(portName != nullptr);

  1600. 

  1601.         if (jackPort == nullptr)

  1602.             return;

  1603.         if (portName == nullptr)

  1604.             return;

  1605. 

  1606.         const size_t groupNameSize(std::strstr(newName, portName) - newName - 1);

  1607.         char         groupName[groupNameSize+1];

  1608. 

  1609.         carla_copy<char>(groupName, newName, groupNameSize);

  1610.         groupName[groupNameSize] = '\0';

  1611. 

  1612.         const int groupId(getGroupId(groupName));

  1613. 

  1614.         CARLA_ASSERT(groupId != -1);

  1615. 

  1616.         if (groupId == -1)

  1617.             return;

  1618. 

  1619.         for (int i=0, count=fUsedPortNames.count(); i < count; ++i)

  1620.         {

  1621.             PortNameToId& portNameId(fUsedPortNames[i]);

  1622. 

  1623.             if (/*portNameId.groupId == groupId &&*/ std::strcmp(portNameId.fullName, oldName) == 0)

  1624.             {

  1625.                 CARLA_ASSERT(portNameId.groupId == groupId);

  1626.                 portNameId.rename(portName, newName);

  1627.                 callback(CALLBACK_PATCHBAY_PORT_RENAMED, 0, portNameId.portId, 0, 0.0f, newName);

  1628.                 break;

  1629.             }

  1630.         }

  1631.     }

  1632. #endif

  1633. 

  1634.     void handleJackShutdownCallback()

  1635.     {

  1636.         for (unsigned int i=0; i < kData->curPluginCount; ++i)

  1637.         {

  1638.             //CarlaPlugin* const plugin = getPluginUnchecked(i);

  1639. 

  1640.             //if (plugin)

  1641.             //    plugin->x_client = nullptr;

  1642.         }

  1643. 

  1644.         fClient = nullptr;

  1645.         callback(CALLBACK_QUIT, 0, 0, 0, 0.0f, nullptr);

  1646.     }

  1647. 

  1648.     // -------------------------------------

  1649. 

  1650. private:

  1651.     jack_client_t*         fClient;

  1652.     jack_position_t        fTransportPos;

  1653.     jack_transport_state_t fTransportState;

  1654.     bool fFreewheel;

  1655. 

  1656.     // -------------------------------------

  1657. 

  1658. #ifdef BUILD_BRIDGE

  1659.     bool fHasQuit;

  1660. #else

  1661.     enum RackPorts {

  1662.         kRackPortAudioIn1  = 0,

  1663.         kRackPortAudioIn2  = 1,

  1664.         kRackPortAudioOut1 = 2,

  1665.         kRackPortAudioOut2 = 3,

  1666.         kRackPortEventIn   = 4,

  1667.         kRackPortEventOut  = 5,

  1668.         kRackPortCount     = 6

  1669.     };

  1670. 

  1671.     jack_port_t* fRackPorts[kRackPortCount];

  1672. 

  1673.     struct GroupNameToId {

  1674.         int  id;

  1675.         char name[STR_MAX+1];

  1676. 

  1677.         GroupNameToId()

  1678.         {

  1679.             id = -1;

  1680.             name[0] = '\0';

  1681.         }

  1682. 

  1683.         GroupNameToId(const int id, const char name[])

  1684.         {

  1685.             this->id = id;

  1686.             std::strncpy(this->name, name, STR_MAX);

  1687.             this->name[STR_MAX] = '\0';

  1688.         }

  1689. 

  1690.         bool operator==(const GroupNameToId& groupNameId)

  1691.         {

  1692.             if (groupNameId.id != id)

  1693.                 return false;

  1694.             if (std::strcmp(groupNameId.name, name) != 0)

  1695.                 return false;

  1696.             return true;

  1697.         }

  1698.     };

  1699. 

  1700.     struct PortNameToId {

  1701.         int  groupId;

  1702.         int  portId;

  1703.         char name[STR_MAX+1];

  1704.         char fullName[STR_MAX+1]; // unique

  1705. 

  1706.         PortNameToId()

  1707.         {

  1708.             groupId = -1;

  1709.             portId  = -1;

  1710.             name[0] = '\0';

  1711.             fullName[0] = '\0';

  1712.         }

  1713. 

  1714.         PortNameToId(const int groupId, const int portId, const char name[], const char fullName[])

  1715.         {

  1716.             this->groupId = groupId;

  1717.             this->portId  = portId;

  1718.             std::strncpy(this->name, name, STR_MAX);

  1719.             this->name[STR_MAX] = '\0';

  1720.             std::strncpy(this->fullName, fullName, STR_MAX);

  1721.             this->fullName[STR_MAX] = '\0';

  1722.         }

  1723. 

  1724.         void rename(const char name[], const char fullName[])

  1725.         {

  1726.             std::strncpy(this->name, name, STR_MAX);

  1727.             this->name[STR_MAX] = '\0';

  1728.             std::strncpy(this->fullName, fullName, STR_MAX);

  1729.             this->fullName[STR_MAX] = '\0';

  1730.         }

  1731. 

  1732.         bool operator==(const PortNameToId& portNameId)

  1733.         {

  1734.             if (portNameId.groupId != groupId)

  1735.                 return false;

  1736.             if (portNameId.portId != portId)

  1737.                 return false;

  1738.             if (std::strcmp(portNameId.name, name) != 0)

  1739.                 return false;

  1740.             if (std::strcmp(portNameId.fullName, fullName) != 0)

  1741.                 return false;

  1742.             return true;

  1743.         }

  1744.     };

  1745. 

  1746.     struct ConnectionToId {

  1747.         int id;

  1748.         int portOut;

  1749.         int portIn;

  1750. 

  1751.         ConnectionToId()

  1752.         {

  1753.             id = -1;

  1754.             portOut = -1;

  1755.             portIn  = -1;

  1756.         }

  1757. 

  1758.         ConnectionToId(const int id, const int portOut, const int portIn)

  1759.         {

  1760.             this->id = id;

  1761.             this->portOut = portOut;

  1762.             this->portIn  = portIn;

  1763.         }

  1764. 

  1765.         bool operator==(const ConnectionToId& connectionId)

  1766.         {

  1767.             if (connectionId.id != id)

  1768.                 return false;

  1769.             if (connectionId.portOut != portOut)

  1770.                 return false;

  1771.             if (connectionId.portIn != portIn)

  1772.                 return false;

  1773.             return true;

  1774.         }

  1775.     };

  1776. 

  1777.     int fLastGroupId;

  1778.     int fLastPortId;

  1779.     int fLastConnectionId;

  1780. 

  1781.     QList<GroupNameToId>  fUsedGroupNames;

  1782.     QList<PortNameToId>   fUsedPortNames;

  1783.     QList<ConnectionToId> fUsedConnections;

  1784.     QList<int> fGroupIconsChanged;

  1785. 

  1786.     int getGroupId(const char* const name)

  1787.     {

  1788.         CARLA_ASSERT(name != nullptr);

  1789. 

  1790.         if (name == nullptr)

  1791.             return -1;

  1792. 

  1793.         foreach (const GroupNameToId& groupNameId, fUsedGroupNames)

  1794.         {

  1795.             if (std::strcmp(groupNameId.name, name) == 0)

  1796.                 return groupNameId.id;

  1797.         }

  1798. 

  1799.         return -1;

  1800.     }

  1801. 

  1802.     const char* getGroupName(const int groupId)

  1803.     {

  1804.         CARLA_ASSERT(groupId >= 0);

  1805. 

  1806.         static const char fallback[1] = { '\0' };

  1807. 

  1808.         if (groupId < 0)

  1809.             return fallback;

  1810. 

  1811.         foreach (const GroupNameToId& groupNameId, fUsedGroupNames)

  1812.         {

  1813.             if (groupNameId.id == groupId)

  1814.                 return groupNameId.name;

  1815.         }

  1816. 

  1817.         return fallback;

  1818.     }

  1819. 

  1820.     int getPortId(const char* const fullName)

  1821.     {

  1822.         CARLA_ASSERT(fullName != nullptr);

  1823. 

  1824.         if (fullName == nullptr)

  1825.             return -1;

  1826. 

  1827.         foreach (const PortNameToId& portNameId, fUsedPortNames)

  1828.         {

  1829.             if (std::strcmp(portNameId.fullName, fullName) == 0)

  1830.                 return portNameId.portId;

  1831.         }

  1832. 

  1833.         return -1;

  1834.     }

  1835. 

  1836.     void getFullPortName(const int portId, char nameBuf[STR_MAX+1])

  1837.     {

  1838.         foreach (const PortNameToId& portNameId, fUsedPortNames)

  1839.         {

  1840.             if (portNameId.portId == portId)

  1841.             {

  1842.                 std::strncpy(nameBuf, portNameId.fullName, STR_MAX);

  1843.                 nameBuf[STR_MAX] = '\0';

  1844.                 return;

  1845.             }

  1846.         }

  1847. 

  1848.         nameBuf[0] = '\0';

  1849.     }

  1850. 

  1851.     void initJackPatchbay(const char* const ourName)

  1852.     {

  1853.         CARLA_ASSERT(fLastGroupId == 0);

  1854.         CARLA_ASSERT(fLastPortId == 0);

  1855.         CARLA_ASSERT(fLastConnectionId == 0);

  1856.         CARLA_ASSERT(ourName != nullptr);

  1857. 

  1858.         // query initial jack ports

  1859.         QStringList parsedGroups;

  1860. 

  1861.         // our client

  1862.         if (ourName != nullptr)

  1863.         {

  1864.             parsedGroups.append(QString(ourName));

  1865. 

  1866.             GroupNameToId groupNameToId(fLastGroupId++, ourName);

  1867.             fUsedGroupNames.append(groupNameToId);

  1868. 

  1869.             callback(CALLBACK_PATCHBAY_CLIENT_ADDED, 0, groupNameToId.id, PATCHBAY_ICON_CARLA, 0.0f, ourName);

  1870.         }

  1871. 

  1872.         if (const char** ports = jackbridge_get_ports(fClient, nullptr, nullptr, 0))

  1873.         {

  1874.             for (int i=0; ports[i] != nullptr; ++i)

  1875.             {

  1876.                 jack_port_t* const jackPort(jackbridge_port_by_name(fClient, ports[i]));

  1877.                 const char*  const portName(jackbridge_port_short_name(jackPort));

  1878.                 const char*  const fullPortName(ports[i]);

  1879. 

  1880.                 CARLA_ASSERT(jackPort != nullptr);

  1881.                 CARLA_ASSERT(portName != nullptr);

  1882. 

  1883.                 if (jackPort == nullptr)

  1884.                     continue;

  1885.                 if (portName == nullptr)

  1886.                     continue;

  1887. 

  1888.                 const int jackPortFlags(jackbridge_port_flags(jackPort));

  1889. 

  1890.                 const size_t groupNameSize(std::strstr(fullPortName, portName) - fullPortName - 1);

  1891.                 char         groupName[groupNameSize+1];

  1892.                 int          groupId = -1;

  1893. 

  1894.                 carla_copy<char>(groupName, fullPortName, groupNameSize);

  1895.                 groupName[groupNameSize] = '\0';

  1896. 

  1897.                 if (parsedGroups.contains(QString(groupName)))

  1898.                 {

  1899.                     groupId = getGroupId(groupName);

  1900.                     CARLA_ASSERT(groupId != -1);

  1901.                 }

  1902.                 else

  1903.                 {

  1904.                     groupId = fLastGroupId++;

  1905.                     parsedGroups.append(groupName);

  1906. 

  1907.                     GroupNameToId groupNameToId(groupId, groupName);

  1908.                     fUsedGroupNames.append(groupNameToId);

  1909. 

  1910.                     PatchbayIconType groupIcon = PATCHBAY_ICON_APPLICATION;

  1911. 

  1912.                     void*  data = nullptr;

  1913.                     size_t dataSize = 0;

  1914. 

  1915.                     if (jackbridge_custom_get_data(fClient, groupName, URI_CANVAS_ICON, &data, &dataSize) && data != nullptr && dataSize != 0)

  1916.                     {

  1917.                         const char* const icon((const char*)data);

  1918.                         CARLA_ASSERT(std::strlen(icon)+1 == dataSize);

  1919. 

  1920.                         if (std::strcmp(icon, "app") == 0 || std::strcmp(icon, "application") == 0)

  1921.                             groupIcon = PATCHBAY_ICON_APPLICATION;

  1922.                         else if (std::strcmp(icon, "hardware") == 0)

  1923.                             groupIcon = PATCHBAY_ICON_HARDWARE;

  1924.                         else if (std::strcmp(icon, "carla") == 0)

  1925.                             groupIcon = PATCHBAY_ICON_CARLA;

  1926.                         else if (std::strcmp(icon, "distrho") == 0)

  1927.                             groupIcon = PATCHBAY_ICON_DISTRHO;

  1928.                         else if (std::strcmp(icon, "file") == 0)

  1929.                             groupIcon = PATCHBAY_ICON_FILE;

  1930.                         else if (std::strcmp(icon, "plugin") == 0)

  1931.                             groupIcon = PATCHBAY_ICON_PLUGIN;

  1932.                     }

  1933.                     else if (jackPortFlags & JackPortIsPhysical)

  1934.                         groupIcon = PATCHBAY_ICON_HARDWARE;

  1935. 

  1936.                     callback(CALLBACK_PATCHBAY_CLIENT_ADDED, 0, groupId, groupIcon, 0.0f, groupName);

  1937.                 }

  1938. 

  1939.                 bool portIsInput = (jackPortFlags & JackPortIsInput);

  1940.                 bool portIsAudio = (std::strcmp(jackbridge_port_type(jackPort), JACK_DEFAULT_AUDIO_TYPE) == 0);

  1941.                 bool portIsCV    = (jackPortFlags & JackPortIsControlVoltage);

  1942. 

  1943.                 unsigned int canvasPortFlags = 0x0;

  1944.                 canvasPortFlags |= portIsInput ? PATCHBAY_PORT_IS_INPUT : PATCHBAY_PORT_IS_OUTPUT;

  1945.                 canvasPortFlags |= portIsAudio ? PATCHBAY_PORT_IS_AUDIO : PATCHBAY_PORT_IS_MIDI;

  1946. 

  1947.                 if (portIsAudio && portIsCV)

  1948.                     canvasPortFlags |= PATCHBAY_PORT_IS_CV;

  1949. 

  1950.                 PortNameToId portNameToId(groupId, fLastPortId++, portName, fullPortName);

  1951.                 fUsedPortNames.append(portNameToId);

  1952. 

  1953.                 callback(CALLBACK_PATCHBAY_PORT_ADDED, 0, groupId, portNameToId.portId, canvasPortFlags, portName);

  1954.             }

  1955. 

  1956.             jackbridge_free(ports);

  1957.         }

  1958. 

  1959.         // query connections, after all ports are in place

  1960.         if (const char** ports = jackbridge_get_ports(fClient, nullptr, nullptr, JackPortIsOutput))

  1961.         {

  1962.             for (int i=0; ports[i] != nullptr; ++i)

  1963.             {

  1964.                 jack_port_t* const jackPort(jackbridge_port_by_name(fClient, ports[i]));

  1965.                 const char*  const fullPortName(ports[i]);

  1966. 

  1967.                 CARLA_ASSERT(jackPort != nullptr);

  1968. 

  1969.                 if (jackPort == nullptr)

  1970.                     continue;

  1971. 

  1972.                 const int thisPortId(getPortId(fullPortName));

  1973. 

  1974.                 if (thisPortId == -1)

  1975.                     continue;

  1976. 

  1977.                 if (const char** connections = jackbridge_port_get_connections(jackPort))

  1978.                 {

  1979.                     for (int j=0; connections[j] != nullptr; ++j)

  1980.                     {

  1981.                         const int targetPortId(getPortId(connections[j]));

  1982. 

  1983.                         ConnectionToId connectionToId(fLastConnectionId++, thisPortId, targetPortId);

  1984.                         fUsedConnections.append(connectionToId);

  1985. 

  1986.                         callback(CALLBACK_PATCHBAY_CONNECTION_ADDED, 0, connectionToId.id, thisPortId, targetPortId, nullptr);

  1987.                     }

  1988. 

  1989.                     jackbridge_free(connections);

  1990.                 }

  1991.             }

  1992. 

  1993.             jackbridge_free(ports);

  1994.         }

  1995.     }

  1996. #endif

  1997. 

  1998.     // -------------------------------------

  1999. 

  2000.     void processPlugin(CarlaPlugin* const plugin, const uint32_t nframes)

  2001.     {

  2002.         const uint32_t inCount(plugin->audioInCount());

  2003.         const uint32_t outCount(plugin->audioOutCount());

  2004. 

  2005.         float* inBuffer[inCount];

  2006.         float* outBuffer[outCount];

  2007. 

  2008.         float inPeaks[2] = { 0.0f };

  2009.         float outPeaks[2] = { 0.0f };

  2010. 

  2011.         for (uint32_t i=0; i < inCount; ++i)

  2012.         {

  2013.             CarlaEngineAudioPort* const port(CarlaPluginGetAudioInPort(plugin, i));

  2014.             inBuffer[i] = port->getBuffer();

  2015.         }

  2016. 

  2017.         for (uint32_t i=0; i < outCount; ++i)

  2018.         {

  2019.             CarlaEngineAudioPort* const port(CarlaPluginGetAudioOutPort(plugin, i));

  2020.             outBuffer[i] = port->getBuffer();

  2021.         }

  2022. 

  2023.         for (uint32_t i=0; i < inCount && i < 2; ++i)

  2024.         {

  2025.             for (uint32_t j=0; j < nframes; ++j)

  2026.             {

  2027.                 const float absV(std::abs(inBuffer[i][j]));

  2028. 

  2029.                 if (absV > inPeaks[i])

  2030.                     inPeaks[i] = absV;

  2031.             }

  2032.         }

  2033. 

  2034.         plugin->process(inBuffer, outBuffer, nframes);

  2035. 

  2036.         for (uint32_t i=0; i < outCount && i < 2; ++i)

  2037.         {

  2038.             for (uint32_t j=0; j < nframes; ++j)

  2039.             {

  2040.                 const float absV(std::abs(outBuffer[i][j]));

  2041. 

  2042.                 if (absV > outPeaks[i])

  2043.                     outPeaks[i] = absV;

  2044.             }

  2045.         }

  2046. 

  2047.         setPeaks(plugin->id(), inPeaks, outPeaks);

  2048.     }

  2049. 

  2050. #if 0

  2051.     void latencyPlugin(CarlaPlugin* const plugin, jack_latency_callback_mode_t mode)

  2052.     {

  2053.         const uint32_t inCount  = plugin->audioInCount();

  2054.         const uint32_t outCount = plugin->audioOutCount();

  2055. 

  2056.         jack_latency_range_t range;

  2057.         uint32_t pluginLatency = plugin->latency();

  2058. 

  2059.         if (pluginLatency == 0)

  2060.             return;

  2061. 

  2062.         if (mode == JackCaptureLatency)

  2063.         {

  2064.             for (uint32_t i=0; i < inCount; ++i)

  2065.             {

  2066.                 uint32_t aOutI = (i >= outCount) ? outCount : i;

  2067.                 jack_port_t* const portIn  = ((CarlaEngineJackAudioPort*)CarlaPluginGetAudioInPort(plugin, i))->kPort;

  2068.                 jack_port_t* const portOut = ((CarlaEngineJackAudioPort*)CarlaPluginGetAudioOutPort(plugin, aOutI))->kPort;

  2069. 

  2070.                 jackbridge_port_get_latency_range(portIn, mode, &range);

  2071.                 range.min += pluginLatency;

  2072.                 range.max += pluginLatency;

  2073.                 jackbridge_port_set_latency_range(portOut, mode, &range);

  2074.             }

  2075.         }

  2076.         else

  2077.         {

  2078.             for (uint32_t i=0; i < outCount; ++i)

  2079.             {

  2080.                 uint32_t aInI = (i >= inCount) ? inCount : i;

  2081.                 jack_port_t* const portIn  = ((CarlaEngineJackAudioPort*)CarlaPluginGetAudioInPort(plugin, aInI))->kPort;

  2082.                 jack_port_t* const portOut = ((CarlaEngineJackAudioPort*)CarlaPluginGetAudioOutPort(plugin, i))->kPort;

  2083. 

  2084.                 jackbridge_port_get_latency_range(portOut, mode, &range);

  2085.                 range.min += pluginLatency;

  2086.                 range.max += pluginLatency;

  2087.                 jackbridge_port_set_latency_range(portIn, mode, &range);

  2088.             }

  2089.         }

  2090.     }

  2091. #endif

  2092. 

  2093.     // -------------------------------------

  2094. 

  2095.     #define handlePtr ((CarlaEngineJack*)arg)

  2096. 

  2097.     static void carla_jack_custom_appearance_callback(const char* client_name, const char* key, jack_custom_change_t change, void* arg)

  2098.     {

  2099.         handlePtr->handleCustomAppearanceCallback(client_name, key, change);

  2100.     }

  2101. 

  2102.     static int carla_jack_bufsize_callback(jack_nframes_t newBufferSize, void* arg)

  2103.     {

  2104.         handlePtr->handleJackBufferSizeCallback(newBufferSize);

  2105.         return 0;

  2106.     }

  2107. 

  2108.     static int carla_jack_srate_callback(jack_nframes_t newSampleRate, void* arg)

  2109.     {

  2110.         handlePtr->handleJackSampleRateCallback(newSampleRate);

  2111.         return 0;

  2112.     }

  2113. 

  2114.     static void carla_jack_freewheel_callback(int starting, void* arg)

  2115.     {

  2116.         handlePtr->handleJackFreewheelCallback(bool(starting));

  2117.     }

  2118. 

  2119.     static int carla_jack_process_callback(jack_nframes_t nframes, void* arg)

  2120.     {

  2121.         handlePtr->handleJackProcessCallback(nframes);

  2122.         return 0;

  2123.     }

  2124. 

  2125. #if 0

  2126.     static void carla_jack_latency_callback(jack_latency_callback_mode_t mode, void* arg)

  2127.     {

  2128.         handlePtr->handleJackLatencyCallback(mode);

  2129.     }

  2130. #endif

  2131. 

  2132. #ifndef BUILD_BRIDGE

  2133.     static void carla_jack_client_registration_callback(const char* name, int reg, void* arg)

  2134.     {

  2135.         handlePtr->handleJackClientRegistrationCallback(name, (reg != 0));

  2136.     }

  2137. 

  2138.     static void carla_jack_port_registration_callback(jack_port_id_t port, int reg, void* arg)

  2139.     {

  2140.         handlePtr->handleJackPortRegistrationCallback(port, (reg != 0));

  2141.     }

  2142. 

  2143.     static void carla_jack_port_connect_callback(jack_port_id_t a, jack_port_id_t b, int connect, void* arg)

  2144.     {

  2145.         handlePtr->handleJackPortConnectCallback(a, b, (connect != 0));

  2146.     }

  2147. 

  2148.     static int carla_jack_port_rename_callback(jack_port_id_t port, const char* oldName, const char* newName, void* arg)

  2149.     {

  2150.         handlePtr->handleJackPortRenameCallback(port, oldName, newName);

  2151.         return 0;

  2152.     }

  2153. #endif

  2154. 

  2155.     static void carla_jack_shutdown_callback(void* arg)

  2156.     {

  2157.         handlePtr->handleJackShutdownCallback();

  2158.     }

  2159. 

  2160.     #undef handlePtr

  2161. 

  2162.     // -------------------------------------

  2163. 

  2164. #ifndef BUILD_BRIDGE

  2165.     static int carla_jack_process_callback_plugin(jack_nframes_t nframes, void* arg)

  2166.     {

  2167.         CarlaPlugin* const plugin = (CarlaPlugin*)arg;

  2168. 

  2169.         if (plugin != nullptr && plugin->enabled() && plugin->tryLock())

  2170.         {

  2171.             CarlaEngineJack* const engine = (CarlaEngineJack*)CarlaPluginGetEngine(plugin);

  2172. 

  2173.             plugin->initBuffers();

  2174.             engine->saveTransportInfo();

  2175.             engine->processPlugin(plugin, nframes);

  2176.             plugin->unlock();

  2177.         }

  2178.         else

  2179.             carla_stdout("Plugin not enabled or locked");

  2180. 

  2181.         return 0;

  2182.     }

  2183. 

  2184. # if 0

  2185.     static void carla_jack_latency_callback_plugin(jack_latency_callback_mode_t mode, void* arg)

  2186.     {

  2187.         CarlaPlugin* const plugin = (CarlaPlugin*)arg;

  2188. 

  2189.         if (plugin != nullptr && plugin->enabled())

  2190.         {

  2191.             CarlaEngineJack* const engine = (CarlaEngineJack*)CarlaPluginGetEngine(plugin);

  2192. 

  2193.             engine->latencyPlugin(plugin, mode);

  2194.         }

  2195.     }

  2196. # endif

  2197. #endif

  2198. 

  2199.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineJack)

  2200. };

  2201. 

  2202. // -----------------------------------------

  2203. 

  2204. CarlaEngine* CarlaEngine::newJack()

  2205. {

  2206.     return new CarlaEngineJack();

  2207. }

  2208. 

  2209. // -----------------------------------------

  2210. 

  2211. CARLA_BACKEND_END_NAMESPACE