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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 doc/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(const uint32_t frames, const uint32_t timeOffset) override

  166.     {

  167.         CARLA_ASSERT(! kIsInput);

  168. 

  169.         if (kIsInput)

  170.             return;

  171. 

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

  173.         carla_copyFloat(jackBuffer+timeOffset, fBuffer, frames);

  174.     }

  175. 

  176. private:

  177.     jack_client_t* const kClient;

  178.     jack_port_t*   const kPort;

  179. 

  180.     friend class CarlaEngineJack;

  181. 

  182.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineJackCVPort)

  183. };

  184. 

  185. // -------------------------------------------------------------------------------------------------------------------

  186. // Carla Engine JACK-Event port

  187. 

  188. class CarlaEngineJackEventPort : public CarlaEngineEventPort

  189. {

  190. public:

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

  192.         : CarlaEngineEventPort(isInput, processMode),

  193.           kClient(client),

  194.           kPort(port),

  195.           fJackBuffer(nullptr)

  196.     {

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

  198. 

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

  200.         {

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

  202.         }

  203.         else

  204.         {

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

  206.         }

  207.     }

  208. 

  209.     ~CarlaEngineJackEventPort() override

  210.     {

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

  212. 

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

  214.             jackbridge_port_unregister(kClient, kPort);

  215.     }

  216. 

  217.     void initBuffer(CarlaEngine* const engine) override

  218.     {

  219.         CARLA_ASSERT(engine != nullptr);

  220. 

  221.         if (engine == nullptr)

  222.             return;

  223. 

  224.         if (kPort == nullptr)

  225.             return CarlaEngineEventPort::initBuffer(engine);

  226. 

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

  228. 

  229.         if (! kIsInput)

  230.             jackbridge_midi_clear_buffer(fJackBuffer);

  231.     }

  232. 

  233.     uint32_t getEventCount() const override

  234.     {

  235.         if (kPort == nullptr)

  236.             return CarlaEngineEventPort::getEventCount();

  237. 

  238.         CARLA_ASSERT(kIsInput);

  239.         CARLA_ASSERT(fJackBuffer != nullptr);

  240. 

  241.         if (! kIsInput)

  242.             return 0;

  243.         if (fJackBuffer == nullptr)

  244.             return 0;

  245. 

  246.         return jackbridge_midi_get_event_count(fJackBuffer);

  247.     }

  248. 

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

  250.     {

  251.         if (kPort == nullptr)

  252.             return CarlaEngineEventPort::getEvent(index);

  253. 

  254.         CARLA_ASSERT(kIsInput);

  255.         CARLA_ASSERT(fJackBuffer != nullptr);

  256. 

  257.         if (! kIsInput)

  258.             return kFallbackJackEngineEvent;

  259.         if (fJackBuffer == nullptr)

  260.             return kFallbackJackEngineEvent;

  261. 

  262.         jack_midi_event_t jackEvent;

  263.         carla_zeroStruct<jack_midi_event_t>(jackEvent);

  264. 

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

  266.             return kFallbackJackEngineEvent;

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

  268.             return kFallbackJackEngineEvent;

  269. 

  270.         fRetEvent.clear();

  271. 

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

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

  274. 

  275.         fRetEvent.time    = jackEvent.time;

  276.         fRetEvent.channel = midiChannel;

  277. 

  278.         if (MIDI_IS_STATUS_CONTROL_CHANGE(midiStatus))

  279.         {

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

  281. 

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

  283.             fRetEvent.type            = kEngineEventTypeControl;

  284. 

  285.             if (MIDI_IS_CONTROL_BANK_SELECT(midiControl))

  286.             {

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

  288. 

  289.                 fRetEvent.ctrl.type  = kEngineControlEventTypeMidiBank;

  290.                 fRetEvent.ctrl.param = midiBank;

  291.                 fRetEvent.ctrl.value = 0.0f;

  292.             }

  293.             else if (midiControl == MIDI_CONTROL_ALL_SOUND_OFF)

  294.             {

  295.                 fRetEvent.ctrl.type  = kEngineControlEventTypeAllSoundOff;

  296.                 fRetEvent.ctrl.param = 0;

  297.                 fRetEvent.ctrl.value = 0.0f;

  298.             }

  299.             else if (midiControl == MIDI_CONTROL_ALL_NOTES_OFF)

  300.             {

  301.                 fRetEvent.ctrl.type  = kEngineControlEventTypeAllNotesOff;

  302.                 fRetEvent.ctrl.param = 0;

  303.                 fRetEvent.ctrl.value = 0.0f;

  304.             }

  305.             else

  306.             {

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

  308. 

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

  310. 

  311.                 fRetEvent.ctrl.type  = kEngineControlEventTypeParameter;

  312.                 fRetEvent.ctrl.param = midiControl;

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

  314.             }

  315.         }

  316.         else if (MIDI_IS_STATUS_PROGRAM_CHANGE(midiStatus))

  317.         {

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

  319. 

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

  321.             fRetEvent.type            = kEngineEventTypeControl;

  322. 

  323.             fRetEvent.ctrl.type  = kEngineControlEventTypeMidiProgram;

  324.             fRetEvent.ctrl.param = midiProgram;

  325.             fRetEvent.ctrl.value = 0.0f;

  326.         }

  327.         else

  328.         {

  329.             fRetEvent.type = kEngineEventTypeMidi;

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

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

  332. 

  333.             if (jackEvent.size > 1)

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

  335.         }

  336. 

  337.         return fRetEvent;

  338.     }

  339. 

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

  341.     {

  342.         if (kPort == nullptr)

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

  344. 

  345.         CARLA_ASSERT(! kIsInput);

  346.         CARLA_ASSERT(fJackBuffer != nullptr);

  347.         CARLA_ASSERT(type != kEngineControlEventTypeNull);

  348.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  349.         CARLA_ASSERT(param < MAX_MIDI_VALUE);

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

  351. 

  352.         if (kIsInput)

  353.             return;

  354.         if (fJackBuffer == nullptr)

  355.             return;

  356.         if (type == kEngineControlEventTypeNull)

  357.             return;

  358.         if (channel >= MAX_MIDI_CHANNELS)

  359.             return;

  360.         if (param >= MAX_MIDI_VALUE)

  361.             return;

  362.         if (type == kEngineControlEventTypeParameter)

  363.         {

  364.             CARLA_ASSERT(! MIDI_IS_CONTROL_BANK_SELECT(param));

  365.         }

  366. 

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

  368. 

  369.         size_t size = 0;

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

  371. 

  372.         switch (type)

  373.         {

  374.         case kEngineControlEventTypeNull:

  375.             break;

  376.         case kEngineControlEventTypeParameter:

  377.             data[0] = MIDI_STATUS_CONTROL_CHANGE + channel;

  378.             data[1] = param;

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

  380.             size    = 3;

  381.             break;

  382.         case kEngineControlEventTypeMidiBank:

  383.             data[0] = MIDI_STATUS_CONTROL_CHANGE + channel;

  384.             data[1] = MIDI_CONTROL_BANK_SELECT;

  385.             data[2] = param;

  386.             size    = 3;

  387.             break;

  388.         case kEngineControlEventTypeMidiProgram:

  389.             data[0] = MIDI_STATUS_PROGRAM_CHANGE + channel;

  390.             data[1] = param;

  391.             size    = 2;

  392.             break;

  393.         case kEngineControlEventTypeAllSoundOff:

  394.             data[0] = MIDI_STATUS_CONTROL_CHANGE + channel;

  395.             data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  396.             data[2] = 0;

  397.             size    = 3;

  398.             break;

  399.         case kEngineControlEventTypeAllNotesOff:

  400.             data[0] = MIDI_STATUS_CONTROL_CHANGE + channel;

  401.             data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  402.             data[2] = 0;

  403.             size    = 3;

  404.             break;

  405.         }

  406. 

  407.         if (size > 0)

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

  409.     }

  410. 

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

  412.     {

  413.         if (kPort == nullptr)

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

  415. 

  416.         CARLA_ASSERT(! kIsInput);

  417.         CARLA_ASSERT(fJackBuffer != nullptr);

  418.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  419.         CARLA_ASSERT(data != nullptr);

  420.         CARLA_ASSERT(size != 0);

  421. 

  422.         if (kIsInput)

  423.             return;

  424.         if (fJackBuffer == nullptr)

  425.             return;

  426.         if (channel >= MAX_MIDI_CHANNELS)

  427.             return;

  428.         if (data == nullptr)

  429.             return;

  430.         if (size == 0)

  431.             return;

  432. 

  433.         uint8_t jdata[size];

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

  435. 

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

  437. 

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

  439.     }

  440. 

  441. private:

  442.     jack_client_t* const kClient;

  443.     jack_port_t*   const kPort;

  444. 

  445.     void*       fJackBuffer;

  446.     EngineEvent fRetEvent;

  447. 

  448.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineJackEventPort)

  449. };

  450. 

  451. // -------------------------------------------------------------------------------------------------------------------

  452. // Jack Engine client

  453. 

  454. class CarlaEngineJackClient : public CarlaEngineClient

  455. {

  456. public:

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

  458.         : CarlaEngineClient(engine),

  459.           kClient(client),

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

  461.     {

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

  463. 

  464.         if (kUseClient)

  465.         {

  466.             CARLA_ASSERT(kClient != nullptr);

  467.         }

  468.         else

  469.         {

  470.             CARLA_ASSERT(kClient == nullptr);

  471.         }

  472.     }

  473. 

  474.     ~CarlaEngineJackClient() override

  475.     {

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

  477. 

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

  479.             jackbridge_client_close(kClient);

  480.     }

  481. 

  482.     void activate() override

  483.     {

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

  485. 

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

  487.         {

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

  489. 

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

  491.                 jackbridge_activate(kClient);

  492.         }

  493. 

  494.         CarlaEngineClient::activate();

  495.     }

  496. 

  497.     void deactivate() override

  498.     {

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

  500. 

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

  502.         {

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

  504. 

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

  506.                 jackbridge_deactivate(kClient);

  507.         }

  508. 

  509.         CarlaEngineClient::deactivate();

  510.     }

  511. 

  512.     bool isOk() const override

  513.     {

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

  515. 

  516.         if (kUseClient)

  517.             return (kClient != nullptr);

  518. 

  519.         return CarlaEngineClient::isOk();

  520.     }

  521. 

  522. #if 0

  523.     void setLatency(const uint32_t samples) override

  524.     {

  525.         CarlaEngineClient::setLatency(samples);

  526. 

  527.         if (kUseClient)

  528.             jackbridge_recompute_total_latencies(kClient);

  529.     }

  530. #endif

  531. 

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

  533.     {

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

  535. 

  536.         jack_port_t* port = nullptr;

  537. 

  538.         // Create JACK port first, if needed

  539.         if (kUseClient)

  540.         {

  541.             switch (portType)

  542.             {

  543.             case kEnginePortTypeNull:

  544.                 break;

  545.             case kEnginePortTypeAudio:

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

  547.                 break;

  548.             case kEnginePortTypeCV:

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

  550.                 break;

  551.             case kEnginePortTypeEvent:

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

  553.                 break;

  554.             }

  555.         }

  556. 

  557.         // Create Engine port

  558.         switch (portType)

  559.         {

  560.         case kEnginePortTypeNull:

  561.             break;

  562.         case kEnginePortTypeAudio:

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

  564.         case kEnginePortTypeCV:

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

  566.         case kEnginePortTypeEvent:

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

  568.         }

  569. 

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

  571.         return nullptr;

  572.     }

  573. 

  574. private:

  575.     jack_client_t* const kClient;

  576.     const bool           kUseClient;

  577. 

  578.     friend class CarlaEngineJack;

  579.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineJackClient)

  580. };

  581. 

  582. // -------------------------------------------------------------------------------------------------------------------

  583. // Jack Engine

  584. 

  585. class CarlaEngineJack : public CarlaEngine

  586. {

  587. public:

  588.     CarlaEngineJack()

  589.         : CarlaEngine(),

  590.           fClient(nullptr),

  591.           fTransportState(JackTransportStopped),

  592.           fFreewheel(false),

  593. #ifdef BUILD_BRIDGE

  594.           fHasQuit(false)

  595. #else

  596. # ifdef CARLA_PROPER_CPP11_SUPPORT

  597.           fRackPorts{nullptr},

  598. # endif

  599.           fLastGroupId(0),

  600.           fLastPortId(0),

  601.           fLastConnectionId(0)

  602. #endif

  603.     {

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

  605. 

  606. #ifdef BUILD_BRIDGE

  607.         fOptions.processMode = PROCESS_MODE_MULTIPLE_CLIENTS;

  608. #else

  609. # ifndef CARLA_PROPER_CPP11_SUPPORT

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

  611. # endif

  612. #endif

  613. 

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

  615.         fOptions.transportMode = TRANSPORT_MODE_JACK;

  616. 

  617.         carla_zeroStruct<jack_position_t>(fTransportPos);

  618.     }

  619. 

  620.     ~CarlaEngineJack() override

  621.     {

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

  623.         CARLA_ASSERT(fClient == nullptr);

  624. 

  625. #ifndef BUILD_BRIDGE

  626.         fUsedGroupNames.clear();

  627.         fUsedPortNames.clear();

  628.         fUsedConnections.clear();

  629.         fGroupIconsChanged.clear();

  630. #endif

  631.     }

  632. 

  633.     // -------------------------------------------------------------------

  634.     // Maximum values

  635. 

  636.     unsigned int maxClientNameSize() const override

  637.     {

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

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

  640. 

  641.         return CarlaEngine::maxClientNameSize();

  642.     }

  643. 

  644.     unsigned int maxPortNameSize() const override

  645.     {

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

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

  648. 

  649.         return CarlaEngine::maxPortNameSize();

  650.     }

  651. 

  652.     // -------------------------------------------------------------------

  653.     // Virtual, per-engine type calls

  654. 

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

  656.     {

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

  658. 

  659.         fFreewheel      = false;

  660.         fTransportState = JackTransportStopped;

  661. 

  662.         carla_zeroStruct<jack_position_t>(fTransportPos);

  663. 

  664. #ifndef BUILD_BRIDGE

  665.         fLastGroupId = 0;

  666.         fLastPortId  = 0;

  667.         fLastConnectionId = 0;

  668. 

  669.         fUsedGroupNames.clear();

  670.         fUsedPortNames.clear();

  671.         fUsedConnections.clear();

  672.         fGroupIconsChanged.clear();

  673. 

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

  675. 

  676.         if (fClient != nullptr)

  677.         {

  678.             fBufferSize = jackbridge_get_buffer_size(fClient);

  679.             fSampleRate = jackbridge_get_sample_rate(fClient);

  680. 

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

  682.             jackbridge_custom_set_data_appearance_callback(fClient, carla_jack_custom_appearance_callback, this);

  683. 

  684.             jackbridge_set_buffer_size_callback(fClient, carla_jack_bufsize_callback, this);

  685.             jackbridge_set_sample_rate_callback(fClient, carla_jack_srate_callback, this);

  686.             jackbridge_set_freewheel_callback(fClient, carla_jack_freewheel_callback, this);

  687.             jackbridge_set_latency_callback(fClient, carla_jack_latency_callback, this);

  688.             jackbridge_set_process_callback(fClient, carla_jack_process_callback, this);

  689.             jackbridge_on_shutdown(fClient, carla_jack_shutdown_callback, this);

  690. 

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

  692. 

  693.             initJackPatchbay(jackClientName);

  694. 

  695.             jackbridge_set_client_registration_callback(fClient, carla_jack_client_registration_callback, this);

  696.             jackbridge_set_port_registration_callback(fClient, carla_jack_port_registration_callback, this);

  697.             jackbridge_set_port_connect_callback(fClient, carla_jack_port_connect_callback, this);

  698.             jackbridge_set_port_rename_callback(fClient, carla_jack_port_rename_callback, this);

  699. 

  700.             if (fOptions.processMode == PROCESS_MODE_CONTINUOUS_RACK)

  701.             {

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

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

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

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

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

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

  708.             }

  709. 

  710.             if (jackbridge_activate(fClient))

  711.             {

  712.                 CarlaEngine::init(jackClientName);

  713.                 return true;

  714.             }

  715.             else

  716.             {

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

  718.                 jackbridge_client_close(fClient);

  719.                 fClient = nullptr;

  720.             }

  721.         }

  722.         else

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

  724. 

  725.         return false;

  726. #else

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

  728.         {

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

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

  731.             {

  732.                 fBufferSize = jackbridge_get_buffer_size(tmpClient);

  733.                 fSampleRate = jackbridge_get_sample_rate(tmpClient);

  734. 

  735.                 jackbridge_client_close(tmpClient);

  736.             }

  737.         }

  738. 

  739.         return CarlaEngine::init(clientName);

  740. #endif

  741.     }

  742. 

  743.     bool close() override

  744.     {

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

  746.         CarlaEngine::close();

  747. 

  748. #ifdef BUILD_BRIDGE

  749.         fClient  = nullptr;

  750.         fHasQuit = true;

  751.         return true;

  752. #else

  753.         if (jackbridge_deactivate(fClient))

  754.         {

  755.             if (fOptions.processMode == PROCESS_MODE_CONTINUOUS_RACK)

  756.             {

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

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

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

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

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

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

  763.             }

  764. 

  765.             if (jackbridge_client_close(fClient))

  766.             {

  767.                 fClient = nullptr;

  768.                 return true;

  769.             }

  770.             else

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

  772.         }

  773.         else

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

  775. 

  776.         fClient = nullptr;

  777. 

  778.         fUsedGroupNames.clear();

  779.         fUsedPortNames.clear();

  780.         fUsedConnections.clear();

  781.         fGroupIconsChanged.clear();

  782. #endif

  783.         return false;

  784.     }

  785. 

  786. #ifndef BUILD_BRIDGE

  787.     void idle() override

  788.     {

  789.         CarlaEngine::idle();

  790. 

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

  792.             return;

  793. 

  794.         static bool checkIcons = false;

  795. 

  796.         if (! checkIcons)

  797.         {

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

  799.             return;

  800.         }

  801. 

  802.         checkIcons = false;

  803. 

  804.         void*  data;

  805.         size_t dataSize;

  806. 

  807.         QList<int> groupIconsCopy(fGroupIconsChanged);

  808.         fGroupIconsChanged.clear();

  809. 

  810.         foreach (const int& groupId, groupIconsCopy)

  811.         {

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

  813. 

  814.             data = nullptr;

  815.             dataSize = 0;

  816. 

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

  818.             {

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

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

  821. 

  822.                 PatchbayIconType groupIcon;

  823. 

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

  825.                     groupIcon = PATCHBAY_ICON_APPLICATION;

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

  827.                     groupIcon = PATCHBAY_ICON_HARDWARE;

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

  829.                     groupIcon = PATCHBAY_ICON_CARLA;

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

  831.                     groupIcon = PATCHBAY_ICON_DISTRHO;

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

  833.                     groupIcon = PATCHBAY_ICON_FILE;

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

  835.                     groupIcon = PATCHBAY_ICON_PLUGIN;

  836.                 else

  837.                     groupIcon = PATCHBAY_ICON_APPLICATION;

  838. 

  839.                 callback(CALLBACK_PATCHBAY_ICON_CHANGED, 0, groupId, groupIcon, 0.0f, groupName);

  840. 

  841.                 jackbridge_free(data);

  842.             }

  843.         }

  844.     }

  845. #endif

  846. 

  847.     bool isRunning() const override

  848.     {

  849. #ifdef BUILD_BRIDGE

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

  851. #else

  852.         return (fClient != nullptr);

  853. #endif

  854.     }

  855. 

  856.     bool isOffline() const override

  857.     {

  858.         return fFreewheel;

  859.     }

  860. 

  861.     EngineType type() const override

  862.     {

  863.         return kEngineTypeJack;

  864.     }

  865. 

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

  867.     {

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

  869.         jack_client_t* client = nullptr;

  870. 

  871. #ifdef BUILD_BRIDGE

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

  873. 

  874.         CARLA_ASSERT(client != nullptr);

  875. 

  876.         if (client == nullptr)

  877.             return nullptr;

  878. 

  879.         fBufferSize = jackbridge_get_buffer_size(client);

  880.         fSampleRate = jackbridge_get_sample_rate(client);

  881. 

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

  883. 

  884.         jackbridge_set_buffer_size_callback(client, carla_jack_bufsize_callback, this);

  885.         jackbridge_set_sample_rate_callback(client, carla_jack_srate_callback, this);

  886.         jackbridge_set_freewheel_callback(client, carla_jack_freewheel_callback, this);

  887.         jackbridge_set_latency_callback(client, carla_jack_latency_callback, this);

  888.         jackbridge_set_process_callback(client, carla_jack_process_callback, this);

  889.         jackbridge_on_shutdown(client, carla_jack_shutdown_callback, this);

  890. #else

  891.         if (fOptions.processMode == PROCESS_MODE_SINGLE_CLIENT)

  892.         {

  893.             client = fClient;

  894.         }

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

  896.         {

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

  898. 

  899.             CARLA_ASSERT(client != nullptr);

  900. 

  901.             if (client == nullptr)

  902.                 return nullptr;

  903. 

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

  905. 

  906.             jackbridge_set_latency_callback(client, carla_jack_latency_callback_plugin, plugin);

  907.             jackbridge_set_process_callback(client, carla_jack_process_callback_plugin, plugin);

  908.         }

  909. #endif

  910. 

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

  912.     }

  913. 

  914. #ifndef BUILD_BRIDGE

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

  916.     {

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

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

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

  920.         CARLA_ASSERT(newName != nullptr);

  921. 

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

  923.         {

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

  925.             return nullptr;

  926.         }

  927. 

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

  929. 

  930.         if (plugin == nullptr)

  931.         {

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

  933.             return nullptr;

  934.         }

  935. 

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

  937. 

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

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

  940. 

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

  942. 

  943.         // JACK client rename

  944.         if (fOptions.processMode == PROCESS_MODE_MULTIPLE_CLIENTS)

  945.         {

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

  947. 

  948.             if (bridge.client_rename_ptr != nullptr)

  949.             {

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

  951.             }

  952.             else

  953.             {

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

  955.                 needsReinit = true;

  956. 

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

  958.                 {

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

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

  961. 

  962.                     // close old client

  963.                     plugin->setEnabled(false);

  964. 

  965.                     if (client->isActive())

  966.                         client->deactivate();

  967. 

  968.                     plugin->clearBuffers();

  969. 

  970.                     jackbridge_client_close(client->kClient);

  971. 

  972.                     // set new client data

  973.                     name = jackbridge_get_client_name(jclient);

  974. 

  975.                     jackbridge_set_process_callback(jclient, carla_jack_process_callback_plugin, plugin);

  976.                     jackbridge_set_latency_callback(jclient, carla_jack_latency_callback_plugin, plugin);

  977. 

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

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

  980.                 }

  981.             }

  982.         }

  983. 

  984.         if (name == nullptr)

  985.             return nullptr;

  986. 

  987.         // Rename

  988.         plugin->setName(name);

  989. 

  990.         if (needsReinit)

  991.         {

  992.             // reload plugin to recreate its ports

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

  994.             plugin->reload();

  995.             plugin->loadSaveState(saveState);

  996.         }

  997. 

  998.         return name;

  999.     }

  1000. 

  1001.     // -------------------------------------------------------------------

  1002.     // Patchbay

  1003. 

  1004.     bool patchbayConnect(int portA, int portB) override

  1005.     {

  1006.         CARLA_ASSERT(fClient != nullptr);

  1007. 

  1008.         if (fClient == nullptr)

  1009.         {

  1010.             setLastError("Invalid JACK client");

  1011.             return false;

  1012.         }

  1013. 

  1014.         char portNameA[STR_MAX+1];

  1015.         char portNameB[STR_MAX+1];

  1016.         getFullPortName(portA, portNameA);

  1017.         getFullPortName(portB, portNameB);

  1018. 

  1019.         if (! jackbridge_connect(fClient, portNameA, portNameB))

  1020.         {

  1021.             setLastError("JACK operation failed");

  1022.             return false;

  1023.         }

  1024. 

  1025.         return true;

  1026.     }

  1027. 

  1028.     bool patchbayDisconnect(int connectionId) override

  1029.     {

  1030.         CARLA_ASSERT(fClient != nullptr);

  1031. 

  1032.         if (fClient == nullptr)

  1033.         {

  1034.             setLastError("Invalid JACK client");

  1035.             return false;

  1036.         }

  1037. 

  1038.         foreach (const ConnectionToId& connectionToId, fUsedConnections)

  1039.         {

  1040.             if (connectionToId.id == connectionId)

  1041.             {

  1042.                 char portNameOut[STR_MAX+1];

  1043.                 char portNameIn[STR_MAX+1];

  1044. 

  1045.                 getFullPortName(connectionToId.portOut, portNameOut);

  1046.                 getFullPortName(connectionToId.portIn, portNameIn);

  1047. 

  1048.                 if (! jackbridge_disconnect(fClient, portNameOut, portNameIn))

  1049.                 {

  1050.                     setLastError("JACK operation failed");

  1051.                     return false;

  1052.                 }

  1053. 

  1054.                 return true;

  1055.             }

  1056.         }

  1057. 

  1058.         setLastError("Failed to find the requested connection");

  1059.         return false;

  1060.     }

  1061. 

  1062.     void patchbayRefresh() override

  1063.     {

  1064.         CARLA_ASSERT(fClient != nullptr);

  1065. 

  1066.         if (fClient == nullptr)

  1067.             return;

  1068. 

  1069.         fLastGroupId = 0;

  1070.         fLastPortId  = 0;

  1071.         fLastConnectionId = 0;

  1072. 

  1073.         fUsedGroupNames.clear();

  1074.         fUsedPortNames.clear();

  1075.         fUsedConnections.clear();

  1076.         fGroupIconsChanged.clear();

  1077. 

  1078.         initJackPatchbay(jackbridge_get_client_name(fClient));

  1079.     }

  1080. #endif

  1081. 

  1082.     // -------------------------------------------------------------------

  1083.     // Transport

  1084. 

  1085.     void transportPlay() override

  1086.     {

  1087.         if (fOptions.transportMode == TRANSPORT_MODE_INTERNAL)

  1088.             CarlaEngine::transportPlay();

  1089.         else if (fClient != nullptr)

  1090.             jackbridge_transport_start(fClient);

  1091.     }

  1092. 

  1093.     void transportPause() override

  1094.     {

  1095.         if (fOptions.transportMode == TRANSPORT_MODE_INTERNAL)

  1096.             CarlaEngine::transportPause();

  1097.         else if (fClient != nullptr)

  1098.             jackbridge_transport_stop(fClient);

  1099.     }

  1100. 

  1101.     void transportRelocate(const uint32_t frame) override

  1102.     {

  1103.         if (fOptions.transportMode == TRANSPORT_MODE_INTERNAL)

  1104.             CarlaEngine::transportRelocate(frame);

  1105.         else if (fClient != nullptr)

  1106.             jackbridge_transport_locate(fClient, frame);

  1107.     }

  1108. 

  1109.     // -------------------------------------

  1110. 

  1111. protected:

  1112.     void handleJackBufferSizeCallback(const uint32_t newBufferSize)

  1113.     {

  1114.         if (fBufferSize == newBufferSize)

  1115.             return;

  1116. 

  1117.         fBufferSize = newBufferSize;

  1118.         bufferSizeChanged(newBufferSize);

  1119.     }

  1120. 

  1121.     void handleJackSampleRateCallback(const double newSampleRate)

  1122.     {

  1123.         if (fSampleRate == newSampleRate)

  1124.             return;

  1125. 

  1126.         fSampleRate = newSampleRate;

  1127.         sampleRateChanged(newSampleRate);

  1128.     }

  1129. 

  1130.     void handleJackFreewheelCallback(const bool isFreewheel)

  1131.     {

  1132.         if (fFreewheel == isFreewheel)

  1133.             return;

  1134. 

  1135.         fFreewheel = isFreewheel;

  1136.         offlineModeChanged(isFreewheel);

  1137.     }

  1138. 

  1139.     void saveTransportInfo()

  1140.     {

  1141.         if (fOptions.transportMode != TRANSPORT_MODE_JACK)

  1142.             return;

  1143. 

  1144.         fTransportPos.unique_1 = fTransportPos.unique_2 + 1; // invalidate

  1145. 

  1146.         fTransportState = jackbridge_transport_query(fClient, &fTransportPos);

  1147. 

  1148.         fTimeInfo.playing = (fTransportState == JackTransportRolling);

  1149. 

  1150.         if (fTransportPos.unique_1 == fTransportPos.unique_2)

  1151.         {

  1152.             fTimeInfo.frame = fTransportPos.frame;

  1153.             fTimeInfo.usecs = fTransportPos.usecs;

  1154. 

  1155.             if (fTransportPos.valid & JackPositionBBT)

  1156.             {

  1157.                 fTimeInfo.valid              = EngineTimeInfo::ValidBBT;

  1158.                 fTimeInfo.bbt.bar            = fTransportPos.bar;

  1159.                 fTimeInfo.bbt.beat           = fTransportPos.beat;

  1160.                 fTimeInfo.bbt.tick           = fTransportPos.tick;

  1161.                 fTimeInfo.bbt.barStartTick   = fTransportPos.bar_start_tick;

  1162.                 fTimeInfo.bbt.beatsPerBar    = fTransportPos.beats_per_bar;

  1163.                 fTimeInfo.bbt.beatType       = fTransportPos.beat_type;

  1164.                 fTimeInfo.bbt.ticksPerBeat   = fTransportPos.ticks_per_beat;

  1165.                 fTimeInfo.bbt.beatsPerMinute = fTransportPos.beats_per_minute;

  1166.             }

  1167.             else

  1168.                 fTimeInfo.valid = 0x0;

  1169.         }

  1170.         else

  1171.         {

  1172.             fTimeInfo.frame = 0;

  1173.             fTimeInfo.valid = 0x0;

  1174.         }

  1175.     }

  1176. 

  1177.     void handleJackProcessCallback(const uint32_t nframes)

  1178.     {

  1179.         saveTransportInfo();

  1180. 

  1181.         if (kData->curPluginCount == 0)

  1182.         {

  1183. #ifndef BUILD_BRIDGE

  1184.             // pass-through

  1185.             if (fOptions.processMode == PROCESS_MODE_CONTINUOUS_RACK)

  1186.             {

  1187.                 float* const audioIn1  = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioIn1], nframes);

  1188.                 float* const audioIn2  = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioIn2], nframes);

  1189.                 float* const audioOut1 = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioOut1], nframes);

  1190.                 float* const audioOut2 = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioOut2], nframes);

  1191.                 void*  const eventOut  = jackbridge_port_get_buffer(fRackPorts[kRackPortEventOut], nframes);

  1192. 

  1193.                 CARLA_ASSERT(audioIn1 != nullptr);

  1194.                 CARLA_ASSERT(audioIn2 != nullptr);

  1195.                 CARLA_ASSERT(audioOut1 != nullptr);

  1196.                 CARLA_ASSERT(audioOut2 != nullptr);

  1197.                 CARLA_ASSERT(eventOut != nullptr);

  1198. 

  1199.                 carla_copyFloat(audioOut1, audioIn1, nframes);

  1200.                 carla_copyFloat(audioOut2, audioIn2, nframes);

  1201.                 jackbridge_midi_clear_buffer(eventOut);

  1202.             }

  1203. #endif

  1204. 

  1205.             return proccessPendingEvents();

  1206.         }

  1207. 

  1208. #ifdef BUILD_BRIDGE

  1209.         CarlaPlugin* const plugin(kData->plugins[0].plugin);

  1210. 

  1211.         if (plugin != nullptr && plugin->enabled() && plugin->tryLock())

  1212.         {

  1213.             plugin->initBuffers();

  1214.             processPlugin(plugin, nframes);

  1215.             plugin->unlock();

  1216.         }

  1217. #else

  1218.         if (fOptions.processMode == PROCESS_MODE_SINGLE_CLIENT)

  1219.         {

  1220.             for (unsigned int i=0; i < kData->curPluginCount; ++i)

  1221.             {

  1222.                 CarlaPlugin* const plugin(kData->plugins[i].plugin);

  1223. 

  1224.                 if (plugin != nullptr && plugin->enabled() && plugin->tryLock())

  1225.                 {

  1226.                     plugin->initBuffers();

  1227.                     processPlugin(plugin, nframes);

  1228.                     plugin->unlock();

  1229.                 }

  1230.             }

  1231.         }

  1232.         else if (fOptions.processMode == PROCESS_MODE_CONTINUOUS_RACK)

  1233.         {

  1234.             // get buffers from jack

  1235.             float* const audioIn1  = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioIn1], nframes);

  1236.             float* const audioIn2  = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioIn2], nframes);

  1237.             float* const audioOut1 = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioOut1], nframes);

  1238.             float* const audioOut2 = (float*)jackbridge_port_get_buffer(fRackPorts[kRackPortAudioOut2], nframes);

  1239.             void* const  eventIn   = jackbridge_port_get_buffer(fRackPorts[kRackPortEventIn],  nframes);

  1240.             void* const  eventOut  = jackbridge_port_get_buffer(fRackPorts[kRackPortEventOut], nframes);

  1241. 

  1242.             // assert buffers

  1243.             CARLA_ASSERT(audioIn1 != nullptr);

  1244.             CARLA_ASSERT(audioIn2 != nullptr);

  1245.             CARLA_ASSERT(audioOut1 != nullptr);

  1246.             CARLA_ASSERT(audioOut2 != nullptr);

  1247.             CARLA_ASSERT(eventIn != nullptr);

  1248.             CARLA_ASSERT(eventOut != nullptr);

  1249. 

  1250.             // create audio buffers

  1251.             float* inBuf[2]  = { audioIn1, audioIn2 };

  1252.             float* outBuf[2] = { audioOut1, audioOut2 };

  1253. 

  1254.             // initialize input events

  1255.             carla_zeroStruct<EngineEvent>(kData->bufEvents.in, INTERNAL_EVENT_COUNT);

  1256.             {

  1257.                 uint32_t engineEventIndex = 0;

  1258. 

  1259.                 jack_midi_event_t jackEvent;

  1260.                 const uint32_t jackEventCount(jackbridge_midi_get_event_count(eventIn));

  1261. 

  1262.                 for (uint32_t jackEventIndex=0; jackEventIndex < jackEventCount; ++jackEventIndex)

  1263.                 {

  1264.                     if (! jackbridge_midi_event_get(&jackEvent, eventIn, jackEventIndex))

  1265.                         continue;

  1266. 

  1267.                     EngineEvent* const engineEvent(&kData->bufEvents.in[engineEventIndex++]);

  1268.                     engineEvent->clear();

  1269. 

  1270.                     const uint8_t midiStatus  = MIDI_GET_STATUS_FROM_DATA(jackEvent.buffer);

  1271.                     const uint8_t midiChannel = MIDI_GET_CHANNEL_FROM_DATA(jackEvent.buffer);

  1272. 

  1273.                     engineEvent->time    = jackEvent.time;

  1274.                     engineEvent->channel = midiChannel;

  1275. 

  1276.                     if (MIDI_IS_STATUS_CONTROL_CHANGE(midiStatus))

  1277.                     {

  1278.                         CARLA_ASSERT(jackEvent.size == 2 || jackEvent.size == 3);

  1279. 

  1280.                         const uint8_t midiControl = jackEvent.buffer[1];

  1281.                         engineEvent->type         = kEngineEventTypeControl;

  1282. 

  1283.                         if (MIDI_IS_CONTROL_BANK_SELECT(midiControl))

  1284.                         {

  1285.                             const uint8_t midiBank  = jackEvent.buffer[2];

  1286. 

  1287.                             engineEvent->ctrl.type  = kEngineControlEventTypeMidiBank;

  1288.                             engineEvent->ctrl.param = midiBank;

  1289.                             engineEvent->ctrl.value = 0.0f;

  1290.                         }

  1291.                         else if (midiControl == MIDI_CONTROL_ALL_SOUND_OFF)

  1292.                         {

  1293.                             engineEvent->ctrl.type  = kEngineControlEventTypeAllSoundOff;

  1294.                             engineEvent->ctrl.param = 0;

  1295.                             engineEvent->ctrl.value = 0.0f;

  1296.                         }

  1297.                         else if (midiControl == MIDI_CONTROL_ALL_NOTES_OFF)

  1298.                         {

  1299.                             engineEvent->ctrl.type  = kEngineControlEventTypeAllNotesOff;

  1300.                             engineEvent->ctrl.param = 0;

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

  1302.                         }

  1303.                         else

  1304.                         {

  1305.                             CARLA_ASSERT(jackEvent.size == 3);

  1306. 

  1307.                             const uint8_t midiValue = jackEvent.buffer[2];

  1308. 

  1309.                             engineEvent->ctrl.type  = kEngineControlEventTypeParameter;

  1310.                             engineEvent->ctrl.param = midiControl;

  1311.                             engineEvent->ctrl.value = float(midiValue)/127.0f;

  1312.                         }

  1313.                     }

  1314.                     else if (MIDI_IS_STATUS_PROGRAM_CHANGE(midiStatus))

  1315.                     {

  1316.                         CARLA_ASSERT(jackEvent.size == 2);

  1317. 

  1318.                         const uint8_t midiProgram = jackEvent.buffer[1];

  1319.                         engineEvent->type         = kEngineEventTypeControl;

  1320. 

  1321.                         engineEvent->ctrl.type  = kEngineControlEventTypeMidiProgram;

  1322.                         engineEvent->ctrl.param = midiProgram;

  1323.                         engineEvent->ctrl.value = 0.0f;

  1324.                     }

  1325.                     else if (jackEvent.size <= 4)

  1326.                     {

  1327.                         engineEvent->type = kEngineEventTypeMidi;

  1328. 

  1329.                         engineEvent->midi.data[0] = midiStatus;

  1330.                         engineEvent->midi.size    = static_cast<uint8_t>(jackEvent.size);

  1331. 

  1332.                         if (jackEvent.size > 1)

  1333.                             carla_copy<uint8_t>(engineEvent->midi.data+1, jackEvent.buffer+1, jackEvent.size-1);

  1334.                     }

  1335. 

  1336.                     if (engineEventIndex >= INTERNAL_EVENT_COUNT)

  1337.                         break;

  1338.                 }

  1339.             }

  1340. 

  1341.             // process rack

  1342.             processRack(inBuf, outBuf, nframes);

  1343. 

  1344.             // output control

  1345.             {

  1346.                 jackbridge_midi_clear_buffer(eventOut);

  1347. 

  1348.                 for (unsigned short i=0; i < INTERNAL_EVENT_COUNT; ++i)

  1349.                 {

  1350.                     EngineEvent* const engineEvent = &kData->bufEvents.out[i];

  1351. 

  1352.                     uint8_t data[3] = { 0 };

  1353.                     uint8_t size    = 0;

  1354. 

  1355.                     switch (engineEvent->type)

  1356.                     {

  1357.                     case kEngineEventTypeNull:

  1358.                         break;

  1359. 

  1360.                     case kEngineEventTypeControl:

  1361.                     {

  1362.                         EngineControlEvent* const ctrlEvent = &engineEvent->ctrl;

  1363. 

  1364.                         if (ctrlEvent->type == kEngineControlEventTypeParameter && MIDI_IS_CONTROL_BANK_SELECT(ctrlEvent->param))

  1365.                         {

  1366.                             // FIXME?

  1367.                             ctrlEvent->type  = kEngineControlEventTypeMidiBank;

  1368.                             ctrlEvent->param = ctrlEvent->value;

  1369.                             ctrlEvent->value = 0.0f;

  1370.                         }

  1371. 

  1372.                         switch (ctrlEvent->type)

  1373.                         {

  1374.                         case kEngineControlEventTypeNull:

  1375.                             break;

  1376.                         case kEngineControlEventTypeParameter:

  1377.                             data[0] = MIDI_STATUS_CONTROL_CHANGE + engineEvent->channel;

  1378.                             data[1] = static_cast<uint8_t>(ctrlEvent->param);

  1379.                             data[2] = uint8_t(ctrlEvent->value * 127.0f);

  1380.                             size    = 3;

  1381.                             break;

  1382.                         case kEngineControlEventTypeMidiBank:

  1383.                             data[0] = MIDI_STATUS_CONTROL_CHANGE + engineEvent->channel;

  1384.                             data[1] = MIDI_CONTROL_BANK_SELECT;

  1385.                             data[2] = static_cast<uint8_t>(ctrlEvent->param);

  1386.                             size    = 3;

  1387.                             break;

  1388.                         case kEngineControlEventTypeMidiProgram:

  1389.                             data[0] = MIDI_STATUS_PROGRAM_CHANGE + engineEvent->channel;

  1390.                             data[1] = static_cast<uint8_t>(ctrlEvent->param);

  1391.                             size    = 2;

  1392.                             break;

  1393.                         case kEngineControlEventTypeAllSoundOff:

  1394.                             data[0] = MIDI_STATUS_CONTROL_CHANGE + engineEvent->channel;

  1395.                             data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1396.                             size    = 2;

  1397.                             break;

  1398.                         case kEngineControlEventTypeAllNotesOff:

  1399.                             data[0] = MIDI_STATUS_CONTROL_CHANGE + engineEvent->channel;

  1400.                             data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1401.                             size    = 2;

  1402.                             break;

  1403.                         }

  1404.                         break;

  1405.                     }

  1406. 

  1407.                     case kEngineEventTypeMidi:

  1408.                     {

  1409.                         EngineMidiEvent* const midiEvent = &engineEvent->midi;

  1410. 

  1411.                         data[0] = midiEvent->data[0];

  1412.                         data[1] = midiEvent->data[1];

  1413.                         data[2] = midiEvent->data[2];

  1414.                         size    = midiEvent->size;

  1415.                         break;

  1416.                     }

  1417.                     }

  1418. 

  1419.                     if (size > 0)

  1420.                         jackbridge_midi_event_write(eventOut, engineEvent->time, data, size);

  1421.                 }

  1422.             }

  1423.         }

  1424. #endif // ! BUILD_BRIDGE

  1425. 

  1426.         proccessPendingEvents();

  1427.     }

  1428. 

  1429.     void handleJackLatencyCallback(const jack_latency_callback_mode_t mode)

  1430.     {

  1431.         if (fOptions.processMode != PROCESS_MODE_SINGLE_CLIENT)

  1432.             return;

  1433. 

  1434.         for (unsigned int i=0; i < kData->curPluginCount; ++i)

  1435.         {

  1436.             CarlaPlugin* const plugin(kData->plugins[i].plugin);

  1437. 

  1438.             if (plugin != nullptr && plugin->enabled())

  1439.                 latencyPlugin(plugin, mode);

  1440.         }

  1441.     }

  1442. 

  1443. #ifndef BUILD_BRIDGE

  1444.     void handleCustomAppearanceCallback(const char* client_name, const char* key, jack_custom_change_t change)

  1445.     {

  1446.         if ((change == JackCustomAdded || change == JackCustomReplaced) && std::strcmp(key, URI_CANVAS_ICON) == 0)

  1447.         {

  1448.             const int groupId (getGroupId(client_name));

  1449. 

  1450.             if (groupId == -1)

  1451.                 return;

  1452. 

  1453.             fGroupIconsChanged.append(groupId);

  1454.         }

  1455.     }

  1456. 

  1457.     void handleJackClientRegistrationCallback(const char* const name, const bool reg)

  1458.     {

  1459.         // do nothing on client registration, wait for first port

  1460.         if (reg) return;

  1461. 

  1462.         const int id(getGroupId(name)); // also checks name nullness

  1463. 

  1464.         if (id == -1)

  1465.             return;

  1466. 

  1467.         GroupNameToId groupNameId(id, name);

  1468.         fUsedGroupNames.removeAll(groupNameId);

  1469. 

  1470.         callback(CALLBACK_PATCHBAY_CLIENT_REMOVED, 0, id, 0, 0.0f, name);

  1471.     }

  1472. 

  1473.     void handleJackPortRegistrationCallback(const jack_port_id_t port, const bool reg)

  1474.     {

  1475.         jack_port_t* const jackPort(jackbridge_port_by_id(fClient, port));

  1476.         const char*  const portName(jackbridge_port_short_name(jackPort));

  1477.         const char*  const fullPortName(jackbridge_port_name(jackPort));

  1478. 

  1479.         CARLA_ASSERT(jackPort != nullptr);

  1480.         CARLA_ASSERT(portName != nullptr);

  1481.         CARLA_ASSERT(fullPortName != nullptr);

  1482. 

  1483.         if (jackPort == nullptr)

  1484.             return;

  1485.         if (portName == nullptr)

  1486.             return;

  1487.         if (fullPortName == nullptr)

  1488.             return;

  1489. 

  1490.         CarlaString groupName(fullPortName);

  1491.         groupName.truncate(groupName.rfind(portName)-1);

  1492. 

  1493.         int groupId = getGroupId(groupName);

  1494. 

  1495.         if (reg)

  1496.         {

  1497.             const int jackPortFlags(jackbridge_port_flags(jackPort));

  1498. 

  1499.             if (groupId == -1)

  1500.             {

  1501.                 groupId = fLastGroupId++;

  1502. 

  1503.                 GroupNameToId groupNameToId(groupId, groupName);

  1504.                 fUsedGroupNames.append(groupNameToId);

  1505. 

  1506.                 if (jackPortFlags & JackPortIsPhysical)

  1507.                 {

  1508.                     callback(CALLBACK_PATCHBAY_CLIENT_ADDED, 0, groupId, PATCHBAY_ICON_HARDWARE, 0.0f, groupName);

  1509.                 }

  1510.                 else

  1511.                 {

  1512.                     callback(CALLBACK_PATCHBAY_CLIENT_ADDED, 0, groupId, PATCHBAY_ICON_APPLICATION, 0.0f, groupName);

  1513.                     fGroupIconsChanged.append(groupId);

  1514.                 }

  1515.             }

  1516. 

  1517.             bool portIsInput = (jackPortFlags & JackPortIsInput);

  1518.             bool portIsAudio = (std::strcmp(jackbridge_port_type(jackPort), JACK_DEFAULT_AUDIO_TYPE) == 0);

  1519.             bool portIsCV    = (jackPortFlags & JackPortIsControlVoltage);

  1520. 

  1521.             unsigned int canvasPortFlags = 0x0;

  1522.             canvasPortFlags |= portIsInput ? PATCHBAY_PORT_IS_INPUT : PATCHBAY_PORT_IS_OUTPUT;

  1523.             canvasPortFlags |= portIsAudio ? PATCHBAY_PORT_IS_AUDIO : PATCHBAY_PORT_IS_MIDI;

  1524. 

  1525.             if (portIsAudio && portIsCV)

  1526.                 canvasPortFlags |= PATCHBAY_PORT_IS_CV;

  1527. 

  1528.             PortNameToId portNameToId(groupId, fLastPortId++, portName, fullPortName);

  1529.             fUsedPortNames.append(portNameToId);

  1530. 

  1531.             callback(CALLBACK_PATCHBAY_PORT_ADDED, 0, groupId, portNameToId.portId, canvasPortFlags, portName);

  1532.         }

  1533.         else

  1534.         {

  1535.             const int portId(getPortId(fullPortName));

  1536. 

  1537.             CARLA_ASSERT(groupId != -1);

  1538.             CARLA_ASSERT(portId != -1);

  1539. 

  1540.             if (groupId == -1 || portId == -1)

  1541.                 return;

  1542. 

  1543.             PortNameToId portNameId(groupId, portId, portName, fullPortName);

  1544.             fUsedPortNames.removeOne(portNameId);

  1545. 

  1546.             callback(CALLBACK_PATCHBAY_PORT_REMOVED, 0, groupId, portId, 0.0f, portName);

  1547.         }

  1548.     }

  1549. 

  1550.     void handleJackPortConnectCallback(const jack_port_id_t a, const jack_port_id_t b, const bool connect)

  1551.     {

  1552.         jack_port_t* const jackPortA(jackbridge_port_by_id(fClient, a));

  1553.         jack_port_t* const jackPortB(jackbridge_port_by_id(fClient, b));

  1554.         const char*  const fullPortNameA(jackbridge_port_name(jackPortA));

  1555.         const char*  const fullPortNameB(jackbridge_port_name(jackPortB));

  1556. 

  1557.         CARLA_ASSERT(jackPortA != nullptr);

  1558.         CARLA_ASSERT(jackPortB != nullptr);

  1559.         CARLA_ASSERT(fullPortNameA != nullptr);

  1560.         CARLA_ASSERT(fullPortNameB != nullptr);

  1561. 

  1562.         if (jackPortA == nullptr)

  1563.             return;

  1564.         if (jackPortB == nullptr)

  1565.             return;

  1566.         if (fullPortNameA == nullptr)

  1567.             return;

  1568.         if (fullPortNameB == nullptr)

  1569.             return;

  1570. 

  1571.         const int portIdA(getPortId(fullPortNameA));

  1572.         const int portIdB(getPortId(fullPortNameB));

  1573. 

  1574.         if (portIdA == -1 || portIdB == -1)

  1575.             return;

  1576. 

  1577.         if (connect)

  1578.         {

  1579.             ConnectionToId connectionToId(fLastConnectionId++, portIdA, portIdB);

  1580.             fUsedConnections.append(connectionToId);

  1581. 

  1582.             callback(CALLBACK_PATCHBAY_CONNECTION_ADDED, 0, connectionToId.id, portIdA, portIdB, nullptr);

  1583.         }

  1584.         else

  1585.         {

  1586.             for (int i=0, count=fUsedConnections.count(); i < count; ++i)

  1587.             {

  1588.                 const ConnectionToId& connectionToId(fUsedConnections[i]);

  1589. 

  1590.                 if (connectionToId.portOut == portIdA && connectionToId.portIn == portIdB)

  1591.                 {

  1592.                     callback(CALLBACK_PATCHBAY_CONNECTION_REMOVED, 0, connectionToId.id, 0, 0.0f, nullptr);

  1593.                     fUsedConnections.takeAt(i);

  1594.                     break;

  1595.                 }

  1596.             }

  1597.         }

  1598.     }

  1599. 

  1600.     void handleJackClientRenameCallback(const char* const oldName, const char* const newName)

  1601.     {

  1602.         for (int i=0, count=fUsedGroupNames.count(); i < count; ++i)

  1603.         {

  1604.             GroupNameToId& groupNameToId(fUsedGroupNames[i]);

  1605. 

  1606.             if (std::strcmp(groupNameToId.name, oldName) == 0)

  1607.             {

  1608.                 groupNameToId.rename(newName);

  1609.                 callback(CALLBACK_PATCHBAY_CLIENT_RENAMED, 0, groupNameToId.id, 0, 0.0f, newName);

  1610.                 break;

  1611.             }

  1612.         }

  1613.     }

  1614. 

  1615.     void handleJackPortRenameCallback(const jack_port_id_t port, const char* const oldName, const char* const newName)

  1616.     {

  1617.         jack_port_t* const jackPort(jackbridge_port_by_id(fClient, port));

  1618.         const char*  const portName(jackbridge_port_short_name(jackPort));

  1619. 

  1620.         CARLA_ASSERT(jackPort != nullptr);

  1621.         CARLA_ASSERT(portName != nullptr);

  1622. 

  1623.         if (jackPort == nullptr)

  1624.             return;

  1625.         if (portName == nullptr)

  1626.             return;

  1627. 

  1628.         CarlaString groupName(newName);

  1629.         groupName.truncate(groupName.rfind(portName)-1);

  1630. 

  1631.         const int groupId(getGroupId(groupName));

  1632. 

  1633.         CARLA_ASSERT(groupId != -1);

  1634. 

  1635.         if (groupId == -1)

  1636.             return;

  1637. 

  1638.         for (int i=0, count=fUsedPortNames.count(); i < count; ++i)

  1639.         {

  1640.             PortNameToId& portNameId(fUsedPortNames[i]);

  1641. 

  1642.             if (std::strcmp(portNameId.fullName, oldName) == 0)

  1643.             {

  1644.                 CARLA_ASSERT(portNameId.groupId == groupId);

  1645.                 portNameId.rename(portName, newName);

  1646.                 callback(CALLBACK_PATCHBAY_PORT_RENAMED, 0, groupId, portNameId.portId, 0.0f, newName);

  1647.                 break;

  1648.             }

  1649.         }

  1650.     }

  1651. #endif

  1652. 

  1653.     void handleJackShutdownCallback()

  1654.     {

  1655.         for (unsigned int i=0; i < kData->curPluginCount; ++i)

  1656.         {

  1657.             //CarlaPlugin* const plugin(kData->plugins[i].plugin);

  1658. 

  1659.             //if (plugin)

  1660.             //    plugin->x_client = nullptr;

  1661.         }

  1662. 

  1663.         fClient = nullptr;

  1664.         callback(CALLBACK_QUIT, 0, 0, 0, 0.0f, nullptr);

  1665.     }

  1666. 

  1667.     // -------------------------------------

  1668. 

  1669. private:

  1670.     jack_client_t*         fClient;

  1671.     jack_position_t        fTransportPos;

  1672.     jack_transport_state_t fTransportState;

  1673.     bool fFreewheel;

  1674. 

  1675.     // -------------------------------------

  1676. 

  1677. #ifdef BUILD_BRIDGE

  1678.     bool fHasQuit;

  1679. #else

  1680.     enum RackPorts {

  1681.         kRackPortAudioIn1  = 0,

  1682.         kRackPortAudioIn2  = 1,

  1683.         kRackPortAudioOut1 = 2,

  1684.         kRackPortAudioOut2 = 3,

  1685.         kRackPortEventIn   = 4,

  1686.         kRackPortEventOut  = 5,

  1687.         kRackPortCount     = 6

  1688.     };

  1689. 

  1690.     jack_port_t* fRackPorts[kRackPortCount];

  1691. 

  1692.     struct GroupNameToId {

  1693.         int  id;

  1694.         char name[STR_MAX+1];

  1695. 

  1696.         GroupNameToId()

  1697.         {

  1698.             id = -1;

  1699.             name[0] = '\0';

  1700.         }

  1701. 

  1702.         GroupNameToId(const int id, const char name[])

  1703.         {

  1704.             this->id = id;

  1705.             std::strncpy(this->name, name, STR_MAX);

  1706.             this->name[STR_MAX] = '\0';

  1707.         }

  1708. 

  1709.         void rename(const char name[])

  1710.         {

  1711.             std::strncpy(this->name, name, STR_MAX);

  1712.             this->name[STR_MAX] = '\0';

  1713.         }

  1714. 

  1715.         bool operator==(const GroupNameToId& groupNameId)

  1716.         {

  1717.             if (groupNameId.id != id)

  1718.                 return false;

  1719.             if (std::strcmp(groupNameId.name, name) != 0)

  1720.                 return false;

  1721.             return true;

  1722.         }

  1723.     };

  1724. 

  1725.     struct PortNameToId {

  1726.         int  groupId;

  1727.         int  portId;

  1728.         char name[STR_MAX+1];

  1729.         char fullName[STR_MAX+1]; // unique

  1730. 

  1731.         PortNameToId()

  1732.         {

  1733.             groupId = -1;

  1734.             portId  = -1;

  1735.             name[0] = '\0';

  1736.             fullName[0] = '\0';

  1737.         }

  1738. 

  1739.         PortNameToId(const int groupId, const int portId, const char name[], const char fullName[])

  1740.         {

  1741.             this->groupId = groupId;

  1742.             this->portId  = portId;

  1743.             std::strncpy(this->name, name, STR_MAX);

  1744.             this->name[STR_MAX] = '\0';

  1745.             std::strncpy(this->fullName, fullName, STR_MAX);

  1746.             this->fullName[STR_MAX] = '\0';

  1747.         }

  1748. 

  1749.         void rename(const char name[], const char fullName[])

  1750.         {

  1751.             std::strncpy(this->name, name, STR_MAX);

  1752.             this->name[STR_MAX] = '\0';

  1753.             std::strncpy(this->fullName, fullName, STR_MAX);

  1754.             this->fullName[STR_MAX] = '\0';

  1755.         }

  1756. 

  1757.         bool operator==(const PortNameToId& portNameId)

  1758.         {

  1759.             if (portNameId.groupId != groupId)

  1760.                 return false;

  1761.             if (portNameId.portId != portId)

  1762.                 return false;

  1763.             if (std::strcmp(portNameId.name, name) != 0)

  1764.                 return false;

  1765.             if (std::strcmp(portNameId.fullName, fullName) != 0)

  1766.                 return false;

  1767.             return true;

  1768.         }

  1769.     };

  1770. 

  1771.     struct ConnectionToId {

  1772.         int id;

  1773.         int portOut;

  1774.         int portIn;

  1775. 

  1776.         ConnectionToId()

  1777.         {

  1778.             id = -1;

  1779.             portOut = -1;

  1780.             portIn  = -1;

  1781.         }

  1782. 

  1783.         ConnectionToId(const int id, const int portOut, const int portIn)

  1784.         {

  1785.             this->id = id;

  1786.             this->portOut = portOut;

  1787.             this->portIn  = portIn;

  1788.         }

  1789. 

  1790.         bool operator==(const ConnectionToId& connectionId)

  1791.         {

  1792.             if (connectionId.id != id)

  1793.                 return false;

  1794.             if (connectionId.portOut != portOut)

  1795.                 return false;

  1796.             if (connectionId.portIn != portIn)

  1797.                 return false;

  1798.             return true;

  1799.         }

  1800.     };

  1801. 

  1802.     int fLastGroupId;

  1803.     int fLastPortId;

  1804.     int fLastConnectionId;

  1805. 

  1806.     QList<GroupNameToId>  fUsedGroupNames;

  1807.     QList<PortNameToId>   fUsedPortNames;

  1808.     QList<ConnectionToId> fUsedConnections;

  1809.     QList<int> fGroupIconsChanged;

  1810. 

  1811.     int getGroupId(const char* const name)

  1812.     {

  1813.         CARLA_ASSERT(name != nullptr);

  1814. 

  1815.         if (name == nullptr)

  1816.             return -1;

  1817. 

  1818.         foreach (const GroupNameToId& groupNameId, fUsedGroupNames)

  1819.         {

  1820.             if (std::strcmp(groupNameId.name, name) == 0)

  1821.                 return groupNameId.id;

  1822.         }

  1823. 

  1824.         return -1;

  1825.     }

  1826. 

  1827.     const char* getGroupName(const int groupId)

  1828.     {

  1829.         CARLA_ASSERT(groupId >= 0);

  1830. 

  1831.         static const char fallback[1] = { '\0' };

  1832. 

  1833.         if (groupId < 0)

  1834.             return fallback;

  1835. 

  1836.         foreach (const GroupNameToId& groupNameId, fUsedGroupNames)

  1837.         {

  1838.             if (groupNameId.id == groupId)

  1839.                 return groupNameId.name;

  1840.         }

  1841. 

  1842.         return fallback;

  1843.     }

  1844. 

  1845.     int getPortId(const char* const fullName)

  1846.     {

  1847.         CARLA_ASSERT(fullName != nullptr);

  1848. 

  1849.         if (fullName == nullptr)

  1850.             return -1;

  1851. 

  1852.         foreach (const PortNameToId& portNameId, fUsedPortNames)

  1853.         {

  1854.             if (std::strcmp(portNameId.fullName, fullName) == 0)

  1855.                 return portNameId.portId;

  1856.         }

  1857. 

  1858.         return -1;

  1859.     }

  1860. 

  1861.     void getFullPortName(const int portId, char nameBuf[STR_MAX+1])

  1862.     {

  1863.         foreach (const PortNameToId& portNameId, fUsedPortNames)

  1864.         {

  1865.             if (portNameId.portId == portId)

  1866.             {

  1867.                 std::strncpy(nameBuf, portNameId.fullName, STR_MAX);

  1868.                 nameBuf[STR_MAX] = '\0';

  1869.                 return;

  1870.             }

  1871.         }

  1872. 

  1873.         nameBuf[0] = '\0';

  1874.     }

  1875. 

  1876.     void initJackPatchbay(const char* const ourName)

  1877.     {

  1878.         CARLA_ASSERT(fLastGroupId == 0);

  1879.         CARLA_ASSERT(fLastPortId == 0);

  1880.         CARLA_ASSERT(fLastConnectionId == 0);

  1881.         CARLA_ASSERT(ourName != nullptr);

  1882. 

  1883.         // query initial jack ports

  1884.         QStringList parsedGroups;

  1885. 

  1886.         // our client

  1887.         if (ourName != nullptr)

  1888.         {

  1889.             parsedGroups.append(QString(ourName));

  1890. 

  1891.             GroupNameToId groupNameToId(fLastGroupId++, ourName);

  1892.             fUsedGroupNames.append(groupNameToId);

  1893. 

  1894.             callback(CALLBACK_PATCHBAY_CLIENT_ADDED, 0, groupNameToId.id, PATCHBAY_ICON_CARLA, 0.0f, ourName);

  1895.         }

  1896. 

  1897.         if (const char** ports = jackbridge_get_ports(fClient, nullptr, nullptr, 0))

  1898.         {

  1899.             for (int i=0; ports[i] != nullptr; ++i)

  1900.             {

  1901.                 jack_port_t* const jackPort(jackbridge_port_by_name(fClient, ports[i]));

  1902.                 const char*  const portName(jackbridge_port_short_name(jackPort));

  1903.                 const char*  const fullPortName(ports[i]);

  1904. 

  1905.                 CARLA_ASSERT(jackPort != nullptr);

  1906.                 CARLA_ASSERT(portName != nullptr);

  1907. 

  1908.                 if (jackPort == nullptr)

  1909.                     continue;

  1910.                 if (portName == nullptr)

  1911.                     continue;

  1912. 

  1913.                 const int jackPortFlags(jackbridge_port_flags(jackPort));

  1914. 

  1915.                 int groupId = -1;

  1916. 

  1917.                 CarlaString groupName(fullPortName);

  1918.                 groupName.truncate(groupName.rfind(portName)-1);

  1919. 

  1920.                 QString qGroupName(groupName);

  1921. 

  1922.                 if (parsedGroups.contains(qGroupName))

  1923.                 {

  1924.                     groupId = getGroupId(groupName);

  1925.                     CARLA_ASSERT(groupId != -1);

  1926.                 }

  1927.                 else

  1928.                 {

  1929.                     groupId = fLastGroupId++;

  1930.                     parsedGroups.append(qGroupName);

  1931. 

  1932.                     GroupNameToId groupNameToId(groupId, groupName);

  1933.                     fUsedGroupNames.append(groupNameToId);

  1934. 

  1935.                     PatchbayIconType groupIcon = PATCHBAY_ICON_APPLICATION;

  1936. 

  1937.                     void*  data = nullptr;

  1938.                     size_t dataSize = 0;

  1939. 

  1940.                     if (jackPortFlags & JackPortIsPhysical)

  1941.                     {

  1942.                         groupIcon = PATCHBAY_ICON_HARDWARE;

  1943.                     }

  1944.                     else if (jackbridge_custom_get_data(fClient, groupName, URI_CANVAS_ICON, &data, &dataSize) && data != nullptr && dataSize != 0)

  1945.                     {

  1946.                         const char* const icon((const char*)data);

  1947.                         CARLA_ASSERT(std::strlen(icon)+1 == dataSize);

  1948. 

  1949.                         if (std::strcmp(icon, "app") == 0 || std::strcmp(icon, "application") == 0)

  1950.                             groupIcon = PATCHBAY_ICON_APPLICATION;

  1951.                         else if (std::strcmp(icon, "hardware") == 0)

  1952.                             groupIcon = PATCHBAY_ICON_HARDWARE;

  1953.                         else if (std::strcmp(icon, "carla") == 0)

  1954.                             groupIcon = PATCHBAY_ICON_CARLA;

  1955.                         else if (std::strcmp(icon, "distrho") == 0)

  1956.                             groupIcon = PATCHBAY_ICON_DISTRHO;

  1957.                         else if (std::strcmp(icon, "file") == 0)

  1958.                             groupIcon = PATCHBAY_ICON_FILE;

  1959.                         else if (std::strcmp(icon, "plugin") == 0)

  1960.                             groupIcon = PATCHBAY_ICON_PLUGIN;

  1961.                     }

  1962. 

  1963.                     callback(CALLBACK_PATCHBAY_CLIENT_ADDED, 0, groupId, groupIcon, 0.0f, groupName);

  1964.                 }

  1965. 

  1966.                 bool portIsInput = (jackPortFlags & JackPortIsInput);

  1967.                 bool portIsAudio = (std::strcmp(jackbridge_port_type(jackPort), JACK_DEFAULT_AUDIO_TYPE) == 0);

  1968.                 bool portIsCV    = (jackPortFlags & JackPortIsControlVoltage);

  1969. 

  1970.                 unsigned int canvasPortFlags = 0x0;

  1971.                 canvasPortFlags |= portIsInput ? PATCHBAY_PORT_IS_INPUT : PATCHBAY_PORT_IS_OUTPUT;

  1972.                 canvasPortFlags |= portIsAudio ? PATCHBAY_PORT_IS_AUDIO : PATCHBAY_PORT_IS_MIDI;

  1973. 

  1974.                 if (portIsAudio && portIsCV)

  1975.                     canvasPortFlags |= PATCHBAY_PORT_IS_CV;

  1976. 

  1977.                 PortNameToId portNameToId(groupId, fLastPortId++, portName, fullPortName);

  1978.                 fUsedPortNames.append(portNameToId);

  1979. 

  1980.                 callback(CALLBACK_PATCHBAY_PORT_ADDED, 0, groupId, portNameToId.portId, canvasPortFlags, portName);

  1981.             }

  1982. 

  1983.             jackbridge_free(ports);

  1984.         }

  1985. 

  1986.         // query connections, after all ports are in place

  1987.         if (const char** ports = jackbridge_get_ports(fClient, nullptr, nullptr, JackPortIsOutput))

  1988.         {

  1989.             for (int i=0; ports[i] != nullptr; ++i)

  1990.             {

  1991.                 jack_port_t* const jackPort(jackbridge_port_by_name(fClient, ports[i]));

  1992.                 const char*  const fullPortName(ports[i]);

  1993. 

  1994.                 CARLA_ASSERT(jackPort != nullptr);

  1995. 

  1996.                 if (jackPort == nullptr)

  1997.                     continue;

  1998. 

  1999.                 const int thisPortId(getPortId(fullPortName));

  2000. 

  2001.                 if (thisPortId == -1)

  2002.                     continue;

  2003. 

  2004.                 if (const char** connections = jackbridge_port_get_connections(jackPort))

  2005.                 {

  2006.                     for (int j=0; connections[j] != nullptr; ++j)

  2007.                     {

  2008.                         const int targetPortId(getPortId(connections[j]));

  2009. 

  2010.                         ConnectionToId connectionToId(fLastConnectionId++, thisPortId, targetPortId);

  2011.                         fUsedConnections.append(connectionToId);

  2012. 

  2013.                         callback(CALLBACK_PATCHBAY_CONNECTION_ADDED, 0, connectionToId.id, thisPortId, targetPortId, nullptr);

  2014.                     }

  2015. 

  2016.                     jackbridge_free(connections);

  2017.                 }

  2018.             }

  2019. 

  2020.             jackbridge_free(ports);

  2021.         }

  2022.     }

  2023. #endif

  2024. 

  2025.     // -------------------------------------

  2026. 

  2027.     void processPlugin(CarlaPlugin* const plugin, const uint32_t nframes)

  2028.     {

  2029.         const uint32_t inCount(plugin->audioInCount());

  2030.         const uint32_t outCount(plugin->audioOutCount());

  2031. 

  2032.         float* inBuffer[inCount];

  2033.         float* outBuffer[outCount];

  2034. 

  2035.         float inPeaks[2] = { 0.0f };

  2036.         float outPeaks[2] = { 0.0f };

  2037. 

  2038.         for (uint32_t i=0; i < inCount; ++i)

  2039.         {

  2040.             CarlaEngineAudioPort* const port(CarlaPluginGetAudioInPort(plugin, i));

  2041.             inBuffer[i] = port->getBuffer();

  2042.         }

  2043. 

  2044.         for (uint32_t i=0; i < outCount; ++i)

  2045.         {

  2046.             CarlaEngineAudioPort* const port(CarlaPluginGetAudioOutPort(plugin, i));

  2047.             outBuffer[i] = port->getBuffer();

  2048.         }

  2049. 

  2050.         for (uint32_t i=0; i < inCount && i < 2; ++i)

  2051.         {

  2052.             for (uint32_t j=0; j < nframes; ++j)

  2053.             {

  2054.                 const float absV(std::abs(inBuffer[i][j]));

  2055. 

  2056.                 if (absV > inPeaks[i])

  2057.                     inPeaks[i] = absV;

  2058.             }

  2059.         }

  2060. 

  2061.         plugin->process(inBuffer, outBuffer, nframes);

  2062. 

  2063.         for (uint32_t i=0; i < outCount && i < 2; ++i)

  2064.         {

  2065.             for (uint32_t j=0; j < nframes; ++j)

  2066.             {

  2067.                 const float absV(std::abs(outBuffer[i][j]));

  2068. 

  2069.                 if (absV > outPeaks[i])

  2070.                     outPeaks[i] = absV;

  2071.             }

  2072.         }

  2073. 

  2074.         setPeaks(plugin->id(), inPeaks, outPeaks);

  2075.     }

  2076. 

  2077.     void latencyPlugin(CarlaPlugin* const plugin, jack_latency_callback_mode_t mode)

  2078.     {

  2079.         //const uint32_t inCount(plugin->audioInCount());

  2080.         //const uint32_t outCount(plugin->audioOutCount());

  2081.         const uint32_t latency(plugin->latency());

  2082. 

  2083.         if (latency == 0)

  2084.             return;

  2085. 

  2086.         //jack_latency_range_t range;

  2087. 

  2088.         // TODO

  2089. 

  2090.         if (mode == JackCaptureLatency)

  2091.         {

  2092. #if 0

  2093.             for (uint32_t i=0; i < inCount; ++i)

  2094.             {

  2095.                 uint32_t aOutI = (i >= outCount) ? outCount : i;

  2096.                 jack_port_t* const portIn  = ((CarlaEngineJackAudioPort*)CarlaPluginGetAudioInPort(plugin, i))->kPort;

  2097.                 jack_port_t* const portOut = ((CarlaEngineJackAudioPort*)CarlaPluginGetAudioOutPort(plugin, aOutI))->kPort;

  2098. 

  2099.                 jackbridge_port_get_latency_range(portIn, mode, &range);

  2100.                 range.min += latency;

  2101.                 range.max += latency;

  2102.                 jackbridge_port_set_latency_range(portOut, mode, &range);

  2103.             }

  2104. #endif

  2105.         }

  2106.         else

  2107.         {

  2108. #if 0

  2109.             for (uint32_t i=0; i < outCount; ++i)

  2110.             {

  2111.                 uint32_t aInI = (i >= inCount) ? inCount : i;

  2112.                 jack_port_t* const portIn  = ((CarlaEngineJackAudioPort*)CarlaPluginGetAudioInPort(plugin, aInI))->kPort;

  2113.                 jack_port_t* const portOut = ((CarlaEngineJackAudioPort*)CarlaPluginGetAudioOutPort(plugin, i))->kPort;

  2114. 

  2115.                 jackbridge_port_get_latency_range(portOut, mode, &range);

  2116.                 range.min += latency;

  2117.                 range.max += latency;

  2118.                 jackbridge_port_set_latency_range(portIn, mode, &range);

  2119.             }

  2120. #endif

  2121.         }

  2122.     }

  2123. 

  2124.     // -------------------------------------

  2125. 

  2126.     #define handlePtr ((CarlaEngineJack*)arg)

  2127. 

  2128.     static int carla_jack_bufsize_callback(jack_nframes_t newBufferSize, void* arg)

  2129.     {

  2130.         handlePtr->handleJackBufferSizeCallback(newBufferSize);

  2131.         return 0;

  2132.     }

  2133. 

  2134.     static int carla_jack_srate_callback(jack_nframes_t newSampleRate, void* arg)

  2135.     {

  2136.         handlePtr->handleJackSampleRateCallback(newSampleRate);

  2137.         return 0;

  2138.     }

  2139. 

  2140.     static void carla_jack_freewheel_callback(int starting, void* arg)

  2141.     {

  2142.         handlePtr->handleJackFreewheelCallback(bool(starting));

  2143.     }

  2144. 

  2145.     static int carla_jack_process_callback(jack_nframes_t nframes, void* arg)

  2146.     {

  2147.         handlePtr->handleJackProcessCallback(nframes);

  2148.         return 0;

  2149.     }

  2150. 

  2151.     static void carla_jack_latency_callback(jack_latency_callback_mode_t mode, void* arg)

  2152.     {

  2153.         handlePtr->handleJackLatencyCallback(mode);

  2154.     }

  2155. 

  2156. #ifndef BUILD_BRIDGE

  2157.     static void carla_jack_custom_appearance_callback(const char* client_name, const char* key, jack_custom_change_t change, void* arg)

  2158.     {

  2159.         handlePtr->handleCustomAppearanceCallback(client_name, key, change);

  2160.     }

  2161. 

  2162.     static void carla_jack_client_registration_callback(const char* name, int reg, void* arg)

  2163.     {

  2164.         handlePtr->handleJackClientRegistrationCallback(name, (reg != 0));

  2165.     }

  2166. 

  2167.     static void carla_jack_port_registration_callback(jack_port_id_t port, int reg, void* arg)

  2168.     {

  2169.         handlePtr->handleJackPortRegistrationCallback(port, (reg != 0));

  2170.     }

  2171. 

  2172.     static void carla_jack_port_connect_callback(jack_port_id_t a, jack_port_id_t b, int connect, void* arg)

  2173.     {

  2174.         handlePtr->handleJackPortConnectCallback(a, b, (connect != 0));

  2175.     }

  2176. 

  2177.     static int carla_jack_client_rename_callback(const char* oldName, const char* newName, void* arg)

  2178.     {

  2179.         handlePtr->handleJackClientRenameCallback(oldName, newName);

  2180.         return 0;

  2181.     }

  2182. 

  2183.     static int carla_jack_port_rename_callback(jack_port_id_t port, const char* oldName, const char* newName, void* arg)

  2184.     {

  2185.         handlePtr->handleJackPortRenameCallback(port, oldName, newName);

  2186.         return 0;

  2187.     }

  2188. #endif

  2189. 

  2190.     static void carla_jack_shutdown_callback(void* arg)

  2191.     {

  2192.         handlePtr->handleJackShutdownCallback();

  2193.     }

  2194. 

  2195.     #undef handlePtr

  2196. 

  2197.     // -------------------------------------

  2198. 

  2199. #ifndef BUILD_BRIDGE

  2200.     static int carla_jack_process_callback_plugin(jack_nframes_t nframes, void* arg)

  2201.     {

  2202.         CarlaPlugin* const plugin((CarlaPlugin*)arg);

  2203. 

  2204.         if (plugin != nullptr && plugin->enabled() && plugin->tryLock())

  2205.         {

  2206.             CarlaEngineJack* const engine((CarlaEngineJack*)CarlaPluginGetEngine(plugin));

  2207.             CARLA_ASSERT(engine != nullptr);

  2208. 

  2209.             plugin->initBuffers();

  2210.             engine->saveTransportInfo();

  2211.             engine->processPlugin(plugin, nframes);

  2212.             plugin->unlock();

  2213.         }

  2214. 

  2215.         return 0;

  2216.     }

  2217. 

  2218.     static void carla_jack_latency_callback_plugin(jack_latency_callback_mode_t mode, void* arg)

  2219.     {

  2220.         CarlaPlugin* const plugin((CarlaPlugin*)arg);

  2221. 

  2222.         if (plugin != nullptr && plugin->enabled())

  2223.         {

  2224.             CarlaEngineJack* const engine((CarlaEngineJack*)CarlaPluginGetEngine(plugin));

  2225.             CARLA_ASSERT(engine != nullptr);

  2226. 

  2227.             engine->latencyPlugin(plugin, mode);

  2228.         }

  2229.     }

  2230. #endif

  2231. 

  2232.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineJack)

  2233. };

  2234. 

  2235. // -----------------------------------------

  2236. 

  2237. CarlaEngine* CarlaEngine::newJack()

  2238. {

  2239.     carla_debug("CarlaEngine::newJack()");

  2240.     return new CarlaEngineJack();

  2241. }

  2242. 

  2243. // -----------------------------------------

  2244. 

  2245. CARLA_BACKEND_END_NAMESPACE