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Carla/source/backend/engine/CarlaEngineBridge.cpp

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  1. /*

  2.  * Carla Plugin Host

  3.  * Copyright (C) 2011-2018 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. #ifndef BUILD_BRIDGE

  19. # error This file should not be compiled if not building bridge

  20. #endif

  21. 

  22. #include "CarlaEngineInternal.hpp"

  23. #include "CarlaPlugin.hpp"

  24. 

  25. #include "CarlaBackendUtils.hpp"

  26. #include "CarlaBase64Utils.hpp"

  27. #include "CarlaBridgeUtils.hpp"

  28. #include "CarlaMIDI.h"

  29. 

  30. #ifdef __SSE2_MATH__

  31. # include <xmmintrin.h>

  32. #endif

  33. 

  34. #include "water/files/File.h"

  35. #include "water/misc/Time.h"

  36. 

  37. // must be last

  38. #include "jackbridge/JackBridge.hpp"

  39. 

  40. using water::File;

  41. using water::MemoryBlock;

  42. using water::String;

  43. using water::Time;

  44. 

  45. CARLA_BACKEND_START_NAMESPACE

  46. 

  47. // -----------------------------------------------------------------------

  48. // Bridge Engine client

  49. 

  50. struct LatencyChangedCallback {

  51.     virtual ~LatencyChangedCallback() noexcept {}

  52.     virtual void latencyChanged(const uint32_t samples) noexcept = 0;

  53. };

  54. 

  55. class CarlaEngineBridgeClient : public CarlaEngineClient

  56. {

  57. public:

  58.     CarlaEngineBridgeClient(const CarlaEngine& engine, LatencyChangedCallback* const cb)

  59.         : CarlaEngineClient(engine),

  60.           fLatencyCallback(cb) {}

  61. 

  62. protected:

  63.     void setLatency(const uint32_t samples) noexcept override

  64.     {

  65.         if (getLatency() == samples)

  66.             return;

  67. 

  68.         fLatencyCallback->latencyChanged(samples);

  69.         CarlaEngineClient::setLatency(samples);

  70.     }

  71. 

  72. private:

  73.     LatencyChangedCallback* const fLatencyCallback;

  74. 

  75.     CARLA_DECLARE_NON_COPY_CLASS(CarlaEngineBridgeClient)

  76. };

  77. 

  78. // -------------------------------------------------------------------

  79. 

  80. class CarlaEngineBridge : public CarlaEngine,

  81.                           private CarlaThread,

  82.                           private LatencyChangedCallback

  83. {

  84. public:

  85.     CarlaEngineBridge(const char* const audioPoolBaseName, const char* const rtClientBaseName, const char* const nonRtClientBaseName, const char* const nonRtServerBaseName)

  86.         : CarlaEngine(),

  87.           CarlaThread("CarlaEngineBridge"),

  88.           fShmAudioPool(),

  89.           fShmRtClientControl(),

  90.           fShmNonRtClientControl(),

  91.           fShmNonRtServerControl(),

  92.           fBaseNameAudioPool(audioPoolBaseName),

  93.           fBaseNameRtClientControl(rtClientBaseName),

  94.           fBaseNameNonRtClientControl(nonRtClientBaseName),

  95.           fBaseNameNonRtServerControl(nonRtServerBaseName),

  96.           fClosingDown(false),

  97.           fIsOffline(false),

  98.           fFirstIdle(true),

  99.           fLastPingTime(-1)

  100.     {

  101.         carla_debug("CarlaEngineBridge::CarlaEngineBridge(\"%s\", \"%s\", \"%s\", \"%s\")", audioPoolBaseName, rtClientBaseName, nonRtClientBaseName, nonRtServerBaseName);

  102.     }

  103. 

  104.     ~CarlaEngineBridge() noexcept override

  105.     {

  106.         carla_debug("CarlaEngineBridge::~CarlaEngineBridge()");

  107. 

  108.         clear();

  109.     }

  110. 

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

  112.     // CarlaEngine virtual calls

  113. 

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

  115.     {

  116.         carla_debug("CarlaEngineBridge::init(\"%s\")", clientName);

  117. 

  118.         if (! pData->init(clientName))

  119.         {

  120.             setLastError("Failed to init internal data");

  121.             return false;

  122.         }

  123. 

  124.         if (! fShmAudioPool.attachClient(fBaseNameAudioPool))

  125.         {

  126.             carla_stderr("Failed to attach to audio pool shared memory");

  127.             return false;

  128.         }

  129. 

  130.         if (! fShmRtClientControl.attachClient(fBaseNameRtClientControl))

  131.         {

  132.             clear();

  133.             carla_stderr("Failed to attach to rt client control shared memory");

  134.             return false;

  135.         }

  136. 

  137.         if (! fShmRtClientControl.mapData())

  138.         {

  139.             clear();

  140.             carla_stderr("Failed to map rt client control shared memory");

  141.             return false;

  142.         }

  143. 

  144.         if (! fShmNonRtClientControl.attachClient(fBaseNameNonRtClientControl))

  145.         {

  146.             clear();

  147.             carla_stderr("Failed to attach to non-rt client control shared memory");

  148.             return false;

  149.         }

  150. 

  151.         if (! fShmNonRtClientControl.mapData())

  152.         {

  153.             clear();

  154.             carla_stderr("Failed to map non-rt control client shared memory");

  155.             return false;

  156.         }

  157. 

  158.         if (! fShmNonRtServerControl.attachClient(fBaseNameNonRtServerControl))

  159.         {

  160.             clear();

  161.             carla_stderr("Failed to attach to non-rt server control shared memory");

  162.             return false;

  163.         }

  164. 

  165.         if (! fShmNonRtServerControl.mapData())

  166.         {

  167.             clear();

  168.             carla_stderr("Failed to map non-rt control server shared memory");

  169.             return false;

  170.         }

  171. 

  172.         PluginBridgeNonRtClientOpcode opcode;

  173. 

  174.         opcode = fShmNonRtClientControl.readOpcode();

  175.         CARLA_SAFE_ASSERT_RETURN(opcode == kPluginBridgeNonRtClientVersion, false);

  176. 

  177.         const uint32_t apiVersion = fShmNonRtClientControl.readUInt();

  178.         CARLA_SAFE_ASSERT_RETURN(apiVersion == CARLA_PLUGIN_BRIDGE_API_VERSION, false);

  179. 

  180.         const uint32_t shmRtClientDataSize = fShmNonRtClientControl.readUInt();

  181.         CARLA_SAFE_ASSERT_INT2(shmRtClientDataSize == sizeof(BridgeRtClientData), shmRtClientDataSize, sizeof(BridgeRtClientData));

  182. 

  183.         const uint32_t shmNonRtClientDataSize = fShmNonRtClientControl.readUInt();

  184.         CARLA_SAFE_ASSERT_INT2(shmNonRtClientDataSize == sizeof(BridgeNonRtClientData), shmNonRtClientDataSize, sizeof(BridgeNonRtClientData));

  185. 

  186.         const uint32_t shmNonRtServerDataSize = fShmNonRtClientControl.readUInt();

  187.         CARLA_SAFE_ASSERT_INT2(shmNonRtServerDataSize == sizeof(BridgeNonRtServerData), shmNonRtServerDataSize, sizeof(BridgeNonRtServerData));

  188. 

  189.         if (shmRtClientDataSize != sizeof(BridgeRtClientData) ||

  190.             shmNonRtClientDataSize != sizeof(BridgeNonRtClientData) ||

  191.             shmNonRtServerDataSize != sizeof(BridgeNonRtServerData))

  192.         {

  193.             carla_stderr2("CarlaJackAppClient: data size mismatch");

  194.             return false;

  195.         }

  196. 

  197.         opcode = fShmNonRtClientControl.readOpcode();

  198.         CARLA_SAFE_ASSERT_RETURN(opcode == kPluginBridgeNonRtClientInitialSetup, false);

  199. 

  200.         pData->bufferSize = fShmNonRtClientControl.readUInt();

  201.         pData->sampleRate = fShmNonRtClientControl.readDouble();

  202. 

  203.         if (pData->bufferSize == 0 || carla_isZero(pData->sampleRate))

  204.         {

  205.             carla_stderr2("CarlaEngineBridge: invalid empty state");

  206.             return false;

  207.         }

  208. 

  209.         pData->initTime(nullptr);

  210. 

  211.         // tell backend we're live

  212.         {

  213.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  214. 

  215.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPong);

  216.             fShmNonRtServerControl.commitWrite();

  217.         }

  218. 

  219.         startThread(true);

  220.         return true;

  221.     }

  222. 

  223.     bool close() override

  224.     {

  225.         carla_debug("CarlaEngineBridge::close()");

  226.         fLastPingTime = -1;

  227. 

  228.         CarlaEngine::close();

  229. 

  230.         stopThread(5000);

  231.         clear();

  232. 

  233.         return true;

  234.     }

  235. 

  236.     bool isRunning() const noexcept override

  237.     {

  238.         if (fClosingDown)

  239.             return false;

  240. 

  241.         return isThreadRunning() || ! fFirstIdle;

  242.     }

  243. 

  244.     bool isOffline() const noexcept override

  245.     {

  246.         return fIsOffline;

  247.     }

  248. 

  249.     EngineType getType() const noexcept override

  250.     {

  251.         return kEngineTypeBridge;

  252.     }

  253. 

  254.     const char* getCurrentDriverName() const noexcept override

  255.     {

  256.         return "Bridge";

  257.     }

  258. 

  259.     CarlaEngineClient* addClient(CarlaPlugin* const) override

  260.     {

  261.         return new CarlaEngineBridgeClient(*this, this);

  262.     }

  263. 

  264.     void idle() noexcept override

  265.     {

  266.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  267.         CARLA_SAFE_ASSERT_RETURN(plugin != nullptr,);

  268. 

  269.         const bool wasFirstIdle(fFirstIdle);

  270. 

  271.         if (wasFirstIdle)

  272.         {

  273.             fFirstIdle = false;

  274.             fLastPingTime = Time::currentTimeMillis();

  275.             CARLA_SAFE_ASSERT(fLastPingTime > 0);

  276. 

  277.             char bufStr[STR_MAX+1];

  278.             uint32_t bufStrSize;

  279. 

  280.             const CarlaEngineClient* const client(plugin->getEngineClient());

  281.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  282. 

  283.             // kPluginBridgeNonRtServerPluginInfo1

  284.             {

  285.                 // uint/category, uint/hints, uint/optionsAvailable, uint/optionsEnabled, long/uniqueId

  286.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPluginInfo1);

  287.                 fShmNonRtServerControl.writeUInt(plugin->getCategory());

  288.                 fShmNonRtServerControl.writeUInt(plugin->getHints());

  289.                 fShmNonRtServerControl.writeUInt(plugin->getOptionsAvailable());

  290.                 fShmNonRtServerControl.writeUInt(plugin->getOptionsEnabled());

  291.                 fShmNonRtServerControl.writeLong(plugin->getUniqueId());

  292.                 fShmNonRtServerControl.commitWrite();

  293.             }

  294. 

  295.             // kPluginBridgeNonRtServerPluginInfo2

  296.             {

  297.                 // uint/size, str[] (realName), uint/size, str[] (label), uint/size, str[] (maker), uint/size, str[] (copyright)

  298.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPluginInfo2);

  299. 

  300.                 carla_zeroChars(bufStr, STR_MAX);

  301.                 plugin->getRealName(bufStr);

  302.                 bufStrSize = carla_fixedValue(1U, 64U, static_cast<uint32_t>(std::strlen(bufStr)));

  303.                 fShmNonRtServerControl.writeUInt(bufStrSize);

  304.                 fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  305. 

  306.                 carla_zeroChars(bufStr, STR_MAX);

  307.                 plugin->getLabel(bufStr);

  308.                 bufStrSize = carla_fixedValue(1U, 256U, static_cast<uint32_t>(std::strlen(bufStr)));

  309.                 fShmNonRtServerControl.writeUInt(bufStrSize);

  310.                 fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  311. 

  312.                 carla_zeroChars(bufStr, STR_MAX);

  313.                 plugin->getMaker(bufStr);

  314.                 bufStrSize = carla_fixedValue(1U, 64U, static_cast<uint32_t>(std::strlen(bufStr)));

  315.                 fShmNonRtServerControl.writeUInt(bufStrSize);

  316.                 fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  317. 

  318.                 carla_zeroChars(bufStr, STR_MAX);

  319.                 plugin->getCopyright(bufStr);

  320.                 bufStrSize = carla_fixedValue(1U, 64U, static_cast<uint32_t>(std::strlen(bufStr)));

  321.                 fShmNonRtServerControl.writeUInt(bufStrSize);

  322.                 fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  323. 

  324.                 fShmNonRtServerControl.commitWrite();

  325.             }

  326. 

  327.             // kPluginBridgeNonRtServerAudioCount

  328.             {

  329.                 const uint32_t aIns  = plugin->getAudioInCount();

  330.                 const uint32_t aOuts = plugin->getAudioOutCount();

  331. 

  332.                 // uint/ins, uint/outs

  333.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerAudioCount);

  334.                 fShmNonRtServerControl.writeUInt(aIns);

  335.                 fShmNonRtServerControl.writeUInt(aOuts);

  336.                 fShmNonRtServerControl.commitWrite();

  337. 

  338.                 // kPluginBridgeNonRtServerPortName

  339.                 for (uint32_t i=0; i<aIns; ++i)

  340.                 {

  341.                     const char* const portName(client->getAudioPortName(true, i));

  342.                     CARLA_SAFE_ASSERT_CONTINUE(portName != nullptr && portName[0] != '\0');

  343. 

  344.                     // byte/type, uint/index, uint/size, str[] (name)

  345.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPortName);

  346.                     fShmNonRtServerControl.writeByte(kPluginBridgePortAudioInput);

  347.                     fShmNonRtServerControl.writeUInt(i);

  348. 

  349.                     bufStrSize = static_cast<uint32_t>(std::strlen(portName));

  350.                     fShmNonRtServerControl.writeUInt(bufStrSize);

  351.                     fShmNonRtServerControl.writeCustomData(portName, bufStrSize);

  352.                 }

  353. 

  354.                 // kPluginBridgeNonRtServerPortName

  355.                 for (uint32_t i=0; i<aOuts; ++i)

  356.                 {

  357.                     const char* const portName(client->getAudioPortName(false, i));

  358.                     CARLA_SAFE_ASSERT_CONTINUE(portName != nullptr && portName[0] != '\0');

  359. 

  360.                     // byte/type, uint/index, uint/size, str[] (name)

  361.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPortName);

  362.                     fShmNonRtServerControl.writeByte(kPluginBridgePortAudioOutput);

  363.                     fShmNonRtServerControl.writeUInt(i);

  364. 

  365.                     bufStrSize = static_cast<uint32_t>(std::strlen(portName));

  366.                     fShmNonRtServerControl.writeUInt(bufStrSize);

  367.                     fShmNonRtServerControl.writeCustomData(portName, bufStrSize);

  368.                 }

  369.             }

  370. 

  371.             fShmNonRtServerControl.waitIfDataIsReachingLimit();

  372. 

  373.             // kPluginBridgeNonRtServerMidiCount

  374.             {

  375.                 // uint/ins, uint/outs

  376.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerMidiCount);

  377.                 fShmNonRtServerControl.writeUInt(plugin->getMidiInCount());

  378.                 fShmNonRtServerControl.writeUInt(plugin->getMidiOutCount());

  379.                 fShmNonRtServerControl.commitWrite();

  380.             }

  381. 

  382.             fShmNonRtServerControl.waitIfDataIsReachingLimit();

  383. 

  384.             // kPluginBridgeNonRtServerCvCount

  385.             {

  386.                 // uint/ins, uint/outs

  387.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerCvCount);

  388.                 fShmNonRtServerControl.writeUInt(plugin->getCVInCount());

  389.                 fShmNonRtServerControl.writeUInt(plugin->getCVOutCount());

  390.                 fShmNonRtServerControl.commitWrite();

  391.             }

  392. 

  393.             fShmNonRtServerControl.waitIfDataIsReachingLimit();

  394. 

  395.             // kPluginBridgeNonRtServerParameter*

  396.             if (const uint32_t count = plugin->getParameterCount())

  397.             {

  398.                 // uint/count

  399.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterCount);

  400.                 fShmNonRtServerControl.writeUInt(count);

  401.                 fShmNonRtServerControl.commitWrite();

  402. 

  403.                 for (uint32_t i=0; i<count; ++i)

  404.                 {

  405.                     const ParameterData& paramData(plugin->getParameterData(i));

  406. 

  407.                     if (paramData.type != PARAMETER_INPUT && paramData.type != PARAMETER_OUTPUT)

  408.                         continue;

  409.                     if ((paramData.hints & PARAMETER_IS_ENABLED) == 0)

  410.                         continue;

  411. 

  412.                     // kPluginBridgeNonRtServerParameterData1

  413.                     {

  414.                         // uint/index, int/rindex, uint/type, uint/hints, short/cc

  415.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterData1);

  416.                         fShmNonRtServerControl.writeUInt(i);

  417.                         fShmNonRtServerControl.writeInt(paramData.rindex);

  418.                         fShmNonRtServerControl.writeUInt(paramData.type);

  419.                         fShmNonRtServerControl.writeUInt(paramData.hints);

  420.                         fShmNonRtServerControl.writeShort(paramData.midiCC);

  421.                         fShmNonRtServerControl.commitWrite();

  422.                     }

  423. 

  424.                     // kPluginBridgeNonRtServerParameterData2

  425.                     {

  426.                         // uint/index, uint/size, str[] (name), uint/size, str[] (symbol), uint/size, str[] (unit)

  427.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterData2);

  428.                         fShmNonRtServerControl.writeUInt(i);

  429. 

  430.                         carla_zeroChars(bufStr, STR_MAX);

  431.                         plugin->getParameterName(i, bufStr);

  432.                         bufStrSize = carla_fixedValue(1U, 32U, static_cast<uint32_t>(std::strlen(bufStr)));

  433.                         fShmNonRtServerControl.writeUInt(bufStrSize);

  434.                         fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  435. 

  436.                         carla_zeroChars(bufStr, STR_MAX);

  437.                         plugin->getParameterSymbol(i, bufStr);

  438.                         bufStrSize = carla_fixedValue(1U, 64U, static_cast<uint32_t>(std::strlen(bufStr)));

  439.                         fShmNonRtServerControl.writeUInt(bufStrSize);

  440.                         fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  441. 

  442.                         carla_zeroChars(bufStr, STR_MAX);

  443.                         plugin->getParameterUnit(i, bufStr);

  444.                         bufStrSize = carla_fixedValue(1U, 32U, static_cast<uint32_t>(std::strlen(bufStr)));

  445.                         fShmNonRtServerControl.writeUInt(bufStrSize);

  446.                         fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  447. 

  448.                         fShmNonRtServerControl.commitWrite();

  449.                     }

  450. 

  451.                     // kPluginBridgeNonRtServerParameterRanges

  452.                     {

  453.                         const ParameterRanges& paramRanges(plugin->getParameterRanges(i));

  454. 

  455.                         // uint/index, float/def, float/min, float/max, float/step, float/stepSmall, float/stepLarge

  456.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterRanges);

  457.                         fShmNonRtServerControl.writeUInt(i);

  458.                         fShmNonRtServerControl.writeFloat(paramRanges.def);

  459.                         fShmNonRtServerControl.writeFloat(paramRanges.min);

  460.                         fShmNonRtServerControl.writeFloat(paramRanges.max);

  461.                         fShmNonRtServerControl.writeFloat(paramRanges.step);

  462.                         fShmNonRtServerControl.writeFloat(paramRanges.stepSmall);

  463.                         fShmNonRtServerControl.writeFloat(paramRanges.stepLarge);

  464.                         fShmNonRtServerControl.commitWrite();

  465.                     }

  466. 

  467.                     // kPluginBridgeNonRtServerParameterValue2

  468.                     {

  469.                         // uint/index float/value (used for init/output parameters only, don't resend values)

  470.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterValue2);

  471.                         fShmNonRtServerControl.writeUInt(i);

  472.                         fShmNonRtServerControl.writeFloat(plugin->getParameterValue(i));

  473.                         fShmNonRtServerControl.commitWrite();

  474.                     }

  475. 

  476.                     fShmNonRtServerControl.waitIfDataIsReachingLimit();

  477.                 }

  478.             }

  479. 

  480.             // kPluginBridgeNonRtServerProgram*

  481.             if (const uint32_t count = plugin->getProgramCount())

  482.             {

  483.                 // uint/count

  484.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerProgramCount);

  485.                 fShmNonRtServerControl.writeUInt(count);

  486.                 fShmNonRtServerControl.commitWrite();

  487. 

  488.                 for (uint32_t i=0; i < count; ++i)

  489.                 {

  490.                     // uint/index, uint/size, str[] (name)

  491.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerProgramName);

  492.                     fShmNonRtServerControl.writeUInt(i);

  493. 

  494.                     carla_zeroChars(bufStr, STR_MAX);

  495.                     plugin->getProgramName(i, bufStr);

  496.                     bufStrSize = carla_fixedValue(1U, 32U, static_cast<uint32_t>(std::strlen(bufStr)));

  497.                     fShmNonRtServerControl.writeUInt(bufStrSize);

  498.                     fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  499. 

  500.                     fShmNonRtServerControl.commitWrite();

  501.                     fShmNonRtServerControl.waitIfDataIsReachingLimit();

  502.                 }

  503.             }

  504. 

  505.             // kPluginBridgeNonRtServerMidiProgram*

  506.             if (const uint32_t count = plugin->getMidiProgramCount())

  507.             {

  508.                 // uint/count

  509.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerMidiProgramCount);

  510.                 fShmNonRtServerControl.writeUInt(count);

  511.                 fShmNonRtServerControl.commitWrite();

  512. 

  513.                 for (uint32_t i=0; i < count; ++i)

  514.                 {

  515.                     const MidiProgramData& mpData(plugin->getMidiProgramData(i));

  516.                     CARLA_SAFE_ASSERT_CONTINUE(mpData.name != nullptr);

  517. 

  518.                     // uint/index, uint/bank, uint/program, uint/size, str[] (name)

  519.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerMidiProgramData);

  520.                     fShmNonRtServerControl.writeUInt(i);

  521.                     fShmNonRtServerControl.writeUInt(mpData.bank);

  522.                     fShmNonRtServerControl.writeUInt(mpData.program);

  523. 

  524.                     bufStrSize = carla_fixedValue(1U, 32U, static_cast<uint32_t>(std::strlen(mpData.name)));

  525.                     fShmNonRtServerControl.writeUInt(bufStrSize);

  526.                     fShmNonRtServerControl.writeCustomData(mpData.name, bufStrSize);

  527. 

  528.                     fShmNonRtServerControl.commitWrite();

  529.                     fShmNonRtServerControl.waitIfDataIsReachingLimit();

  530.                 }

  531.             }

  532. 

  533.             if (const uint32_t latency = plugin->getLatencyInFrames())

  534.             {

  535.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetLatency);

  536.                 fShmNonRtServerControl.writeUInt(latency);

  537.                 fShmNonRtServerControl.commitWrite();

  538.             }

  539. 

  540.             // ready!

  541.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerReady);

  542.             fShmNonRtServerControl.commitWrite();

  543.             fShmNonRtServerControl.waitIfDataIsReachingLimit();

  544. 

  545.             carla_stdout("Carla Bridge Ready!");

  546.             fLastPingTime = Time::currentTimeMillis();

  547.         }

  548. 

  549.         // send parameter outputs

  550.         if (const uint32_t count = plugin->getParameterCount())

  551.         {

  552.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  553. 

  554.             for (uint32_t i=0; i < count; ++i)

  555.             {

  556.                 if (! plugin->isParameterOutput(i))

  557.                     continue;

  558. 

  559.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterValue2);

  560.                 fShmNonRtServerControl.writeUInt(i);

  561.                 fShmNonRtServerControl.writeFloat(plugin->getParameterValue(i));

  562. 

  563.                 // parameter outputs are not that important, we can skip some

  564.                 if (! fShmNonRtServerControl.commitWrite())

  565.                     break;

  566.             }

  567.         }

  568. 

  569.         CarlaEngine::idle();

  570. 

  571.         try {

  572.             handleNonRtData();

  573.         } CARLA_SAFE_EXCEPTION("handleNonRtData");

  574. 

  575.         if (fLastPingTime > 0 && Time::currentTimeMillis() > fLastPingTime + 30000 && ! wasFirstIdle)

  576.         {

  577.             carla_stderr("Did not receive ping message from server for 30 secs, closing...");

  578.             signalThreadShouldExit();

  579.             callback(ENGINE_CALLBACK_QUIT, 0, 0, 0, 0.0f, nullptr);

  580.         }

  581.     }

  582. 

  583.     void callback(const EngineCallbackOpcode action, const uint pluginId, const int value1, const int value2, const float value3, const char* const valueStr) noexcept override

  584.     {

  585.         CarlaEngine::callback(action, pluginId, value1, value2, value3, valueStr);

  586. 

  587.         if (fLastPingTime < 0)

  588.             return;

  589. 

  590.         switch (action)

  591.         {

  592.         // uint/index float/value

  593.         case ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED: {

  594.             CARLA_SAFE_ASSERT_BREAK(value1 >= 0);

  595.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  596.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterValue);

  597.             fShmNonRtServerControl.writeUInt(static_cast<uint>(value1));

  598.             fShmNonRtServerControl.writeFloat(value3);

  599.             fShmNonRtServerControl.commitWrite();

  600.         }   break;

  601. 

  602.         // uint/index float/value

  603.         case ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED: {

  604.             CARLA_SAFE_ASSERT_BREAK(value1 >= 0);

  605.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  606.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerDefaultValue);

  607.             fShmNonRtServerControl.writeUInt(static_cast<uint>(value1));

  608.             fShmNonRtServerControl.writeFloat(value3);

  609.             fShmNonRtServerControl.commitWrite();

  610.         }   break;

  611. 

  612.         // int/index

  613.         case ENGINE_CALLBACK_PROGRAM_CHANGED: {

  614.             CARLA_SAFE_ASSERT_BREAK(value1 >= -1);

  615.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  616.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerCurrentProgram);

  617.             fShmNonRtServerControl.writeInt(value1);

  618.             fShmNonRtServerControl.commitWrite();

  619.         }   break;

  620. 

  621.         // int/index

  622.         case ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED: {

  623.             CARLA_SAFE_ASSERT_BREAK(value1 >= -1);

  624.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  625.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerCurrentMidiProgram);

  626.             fShmNonRtServerControl.writeInt(value1);

  627.             fShmNonRtServerControl.commitWrite();

  628.         }   break;

  629. 

  630.         case ENGINE_CALLBACK_UI_STATE_CHANGED:

  631.             if (value1 != 1)

  632.             {

  633.                 const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  634.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerUiClosed);

  635.                 fShmNonRtServerControl.commitWrite();

  636.             }

  637.             break;

  638. 

  639.         default:

  640.             break;

  641.         }

  642.     }

  643. 

  644.     // -------------------------------------------------------------------

  645. 

  646.     void clear() noexcept

  647.     {

  648.         fShmAudioPool.clear();

  649.         fShmRtClientControl.clear();

  650.         fShmNonRtClientControl.clear();

  651.         fShmNonRtServerControl.clear();

  652.     }

  653. 

  654.     void handleNonRtData()

  655.     {

  656.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  657.         CARLA_SAFE_ASSERT_RETURN(plugin != nullptr,);

  658. 

  659.         for (; fShmNonRtClientControl.isDataAvailableForReading();)

  660.         {

  661.             const PluginBridgeNonRtClientOpcode opcode(fShmNonRtClientControl.readOpcode());

  662. 

  663. #ifdef DEBUG

  664.             if (opcode != kPluginBridgeNonRtClientPing) {

  665.                 carla_debug("CarlaEngineBridge::handleNonRtData() - got opcode: %s", PluginBridgeNonRtClientOpcode2str(opcode));

  666.             }

  667. #endif

  668. 

  669.             if (opcode != kPluginBridgeNonRtClientNull && opcode != kPluginBridgeNonRtClientPingOnOff && fLastPingTime > 0)

  670.                 fLastPingTime = Time::currentTimeMillis();

  671. 

  672.             switch (opcode)

  673.             {

  674.             case kPluginBridgeNonRtClientNull:

  675.                 break;

  676. 

  677.             case kPluginBridgeNonRtClientVersion: {

  678.                 const uint apiVersion = fShmNonRtServerControl.readUInt();

  679.                 CARLA_SAFE_ASSERT_UINT2(apiVersion == CARLA_PLUGIN_BRIDGE_API_VERSION, apiVersion, CARLA_PLUGIN_BRIDGE_API_VERSION);

  680.             }   break;

  681. 

  682.             case kPluginBridgeNonRtClientPing: {

  683.                 const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  684. 

  685.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPong);

  686.                 fShmNonRtServerControl.commitWrite();

  687.             }   break;

  688. 

  689.             case kPluginBridgeNonRtClientPingOnOff: {

  690.                 const uint32_t onOff(fShmNonRtClientControl.readBool());

  691. 

  692.                 fLastPingTime = onOff ? Time::currentTimeMillis() : -1;

  693.             }   break;

  694. 

  695.             case kPluginBridgeNonRtClientActivate:

  696.                 if (plugin != nullptr && plugin->isEnabled())

  697.                     plugin->setActive(true, false, false);

  698.                 break;

  699. 

  700.             case kPluginBridgeNonRtClientDeactivate:

  701.                 if (plugin != nullptr && plugin->isEnabled())

  702.                     plugin->setActive(false, false, false);

  703.                 break;

  704. 

  705.             case kPluginBridgeNonRtClientInitialSetup:

  706.                 // should never happen!!

  707.                 fShmNonRtServerControl.readUInt();

  708.                 fShmNonRtServerControl.readDouble();

  709.                 break;

  710. 

  711.             case kPluginBridgeNonRtClientSetParameterValue: {

  712.                 const uint32_t index(fShmNonRtClientControl.readUInt());

  713.                 const float    value(fShmNonRtClientControl.readFloat());

  714. 

  715.                 if (plugin != nullptr && plugin->isEnabled())

  716.                     plugin->setParameterValue(index, value, true, false, false);

  717.                 break;

  718.             }

  719. 

  720.             case kPluginBridgeNonRtClientSetParameterMidiChannel: {

  721.                 const uint32_t index(fShmNonRtClientControl.readUInt());

  722.                 const uint8_t  channel(fShmNonRtClientControl.readByte());

  723. 

  724.                 if (plugin != nullptr && plugin->isEnabled())

  725.                     plugin->setParameterMidiChannel(index, channel, false, false);

  726.                 break;

  727.             }

  728. 

  729.             case kPluginBridgeNonRtClientSetParameterMidiCC: {

  730.                 const uint32_t index(fShmNonRtClientControl.readUInt());

  731.                 const int16_t  cc(fShmNonRtClientControl.readShort());

  732. 

  733.                 if (plugin != nullptr && plugin->isEnabled())

  734.                     plugin->setParameterMidiCC(index, cc, false, false);

  735.                 break;

  736.             }

  737. 

  738.             case kPluginBridgeNonRtClientSetProgram: {

  739.                 const int32_t index(fShmNonRtClientControl.readInt());

  740. 

  741.                 if (plugin != nullptr && plugin->isEnabled())

  742.                     plugin->setProgram(index, true, false, false);

  743.                 break;

  744.             }

  745. 

  746.             case kPluginBridgeNonRtClientSetMidiProgram: {

  747.                 const int32_t index(fShmNonRtClientControl.readInt());

  748. 

  749.                 if (plugin != nullptr && plugin->isEnabled())

  750.                     plugin->setMidiProgram(index, true, false, false);

  751.                 break;

  752.             }

  753. 

  754.             case kPluginBridgeNonRtClientSetCustomData: {

  755.                 // type

  756.                 const uint32_t typeSize(fShmNonRtClientControl.readUInt());

  757.                 char typeStr[typeSize+1];

  758.                 carla_zeroChars(typeStr, typeSize+1);

  759.                 fShmNonRtClientControl.readCustomData(typeStr, typeSize);

  760. 

  761.                 // key

  762.                 const uint32_t keySize(fShmNonRtClientControl.readUInt());

  763.                 char keyStr[keySize+1];

  764.                 carla_zeroChars(keyStr, keySize+1);

  765.                 fShmNonRtClientControl.readCustomData(keyStr, keySize);

  766. 

  767.                 // value

  768.                 const uint32_t valueSize(fShmNonRtClientControl.readUInt());

  769.                 char valueStr[valueSize+1];

  770.                 carla_zeroChars(valueStr, valueSize+1);

  771. 

  772.                 if (valueSize > 0)

  773.                     fShmNonRtClientControl.readCustomData(valueStr, valueSize);

  774. 

  775.                 if (plugin != nullptr && plugin->isEnabled())

  776.                     plugin->setCustomData(typeStr, keyStr, valueStr, true);

  777.                 break;

  778.             }

  779. 

  780.             case kPluginBridgeNonRtClientSetChunkDataFile: {

  781.                 const uint32_t size(fShmNonRtClientControl.readUInt());

  782.                 CARLA_SAFE_ASSERT_BREAK(size > 0);

  783. 

  784.                 char chunkFilePathTry[size+1];

  785.                 carla_zeroChars(chunkFilePathTry, size+1);

  786.                 fShmNonRtClientControl.readCustomData(chunkFilePathTry, size);

  787. 

  788.                 CARLA_SAFE_ASSERT_BREAK(chunkFilePathTry[0] != '\0');

  789.                 if (plugin == nullptr || ! plugin->isEnabled()) break;

  790. 

  791.                 String chunkFilePath(chunkFilePathTry);

  792. 

  793. #ifdef CARLA_OS_WIN

  794.                 // check if running under Wine

  795.                 if (chunkFilePath.startsWith("/"))

  796.                     chunkFilePath = chunkFilePath.replaceSection(0, 1, "Z:\\").replace("/", "\\");

  797. #endif

  798. 

  799.                 File chunkFile(chunkFilePath);

  800.                 CARLA_SAFE_ASSERT_BREAK(chunkFile.existsAsFile());

  801. 

  802.                 String chunkDataBase64(chunkFile.loadFileAsString());

  803.                 chunkFile.deleteFile();

  804.                 CARLA_SAFE_ASSERT_BREAK(chunkDataBase64.isNotEmpty());

  805. 

  806.                 std::vector<uint8_t> chunk(carla_getChunkFromBase64String(chunkDataBase64.toRawUTF8()));

  807. 

  808. #ifdef CARLA_PROPER_CPP11_SUPPORT

  809.                 plugin->setChunkData(chunk.data(), chunk.size());

  810. #else

  811.                 plugin->setChunkData(&chunk.front(), chunk.size());

  812. #endif

  813.                 break;

  814.             }

  815. 

  816.             case kPluginBridgeNonRtClientSetCtrlChannel: {

  817.                 const int16_t channel(fShmNonRtClientControl.readShort());

  818.                 CARLA_SAFE_ASSERT_BREAK(channel >= -1 && channel < MAX_MIDI_CHANNELS);

  819. 

  820.                 if (plugin != nullptr && plugin->isEnabled())

  821.                     plugin->setCtrlChannel(static_cast<int8_t>(channel), false, false);

  822.                 break;

  823.             }

  824. 

  825.             case kPluginBridgeNonRtClientSetOption: {

  826.                 const uint32_t option(fShmNonRtClientControl.readUInt());

  827.                 const bool     yesNo(fShmNonRtClientControl.readBool());

  828. 

  829.                 if (plugin != nullptr && plugin->isEnabled())

  830.                     plugin->setOption(option, yesNo, false);

  831.                 break;

  832.             }

  833. 

  834.             case kPluginBridgeNonRtClientGetParameterText: {

  835.                 const int32_t index(fShmNonRtClientControl.readInt());

  836. 

  837.                 if (index >= 0 && plugin != nullptr && plugin->isEnabled())

  838.                 {

  839.                     char strBuf[STR_MAX];

  840.                     plugin->getParameterText(index, strBuf);

  841.                     const uint32_t strBufLen(std::strlen(strBuf));

  842. 

  843.                     const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  844. 

  845.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetParameterText);

  846. 

  847.                     fShmNonRtServerControl.writeInt(index);

  848.                     fShmNonRtServerControl.writeUInt(strBufLen);

  849.                     fShmNonRtServerControl.writeCustomData(strBuf, strBufLen);

  850.                     fShmNonRtServerControl.commitWrite();

  851. 

  852.                     fShmNonRtServerControl.waitIfDataIsReachingLimit();

  853.                 }

  854. 

  855.                 break;

  856.             }

  857. 

  858.             case kPluginBridgeNonRtClientPrepareForSave: {

  859.                 if (plugin == nullptr || ! plugin->isEnabled()) break;

  860. 

  861.                 plugin->prepareForSave();

  862. 

  863.                 for (uint32_t i=0, count=plugin->getCustomDataCount(); i<count; ++i)

  864.                 {

  865.                     const CustomData& cdata(plugin->getCustomData(i));

  866. 

  867.                     if (std::strcmp(cdata.type, CUSTOM_DATA_TYPE_PROPERTY) == 0)

  868.                         continue;

  869. 

  870.                     const uint32_t typeLen(static_cast<uint32_t>(std::strlen(cdata.type)));

  871.                     const uint32_t keyLen(static_cast<uint32_t>(std::strlen(cdata.key)));

  872.                     const uint32_t valueLen(static_cast<uint32_t>(std::strlen(cdata.value)));

  873. 

  874.                     {

  875.                         const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  876. 

  877.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetCustomData);

  878. 

  879.                         fShmNonRtServerControl.writeUInt(typeLen);

  880.                         fShmNonRtServerControl.writeCustomData(cdata.type, typeLen);

  881. 

  882.                         fShmNonRtServerControl.writeUInt(keyLen);

  883.                         fShmNonRtServerControl.writeCustomData(cdata.key, keyLen);

  884. 

  885.                         fShmNonRtServerControl.writeUInt(valueLen);

  886. 

  887.                         if (valueLen > 0)

  888.                             fShmNonRtServerControl.writeCustomData(cdata.value, valueLen);

  889. 

  890.                         fShmNonRtServerControl.commitWrite();

  891.                         fShmNonRtServerControl.waitIfDataIsReachingLimit();

  892.                     }

  893.                 }

  894. 

  895.                 if (plugin->getOptionsEnabled() & PLUGIN_OPTION_USE_CHUNKS)

  896.                 {

  897.                     void* data = nullptr;

  898.                     if (const std::size_t dataSize = plugin->getChunkData(&data))

  899.                     {

  900.                         CARLA_SAFE_ASSERT_BREAK(data != nullptr);

  901. 

  902.                         CarlaString dataBase64 = CarlaString::asBase64(data, dataSize);

  903.                         CARLA_SAFE_ASSERT_BREAK(dataBase64.length() > 0);

  904. 

  905.                         String filePath(File::getSpecialLocation(File::tempDirectory).getFullPathName());

  906. 

  907.                         filePath += CARLA_OS_SEP_STR ".CarlaChunk_";

  908.                         filePath += fShmAudioPool.getFilenameSuffix();

  909. 

  910.                         if (File(filePath).replaceWithText(dataBase64.buffer()))

  911.                         {

  912.                             const uint32_t ulength(static_cast<uint32_t>(filePath.length()));

  913. 

  914.                             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  915. 

  916.                             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetChunkDataFile);

  917.                             fShmNonRtServerControl.writeUInt(ulength);

  918.                             fShmNonRtServerControl.writeCustomData(filePath.toRawUTF8(), ulength);

  919.                             fShmNonRtServerControl.commitWrite();

  920.                         }

  921.                     }

  922.                 }

  923. 

  924.                 {

  925.                     const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  926. 

  927.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSaved);

  928.                     fShmNonRtServerControl.commitWrite();

  929.                 }

  930.                 break;

  931.             }

  932. 

  933.             case kPluginBridgeNonRtClientShowUI:

  934.                 if (plugin != nullptr && plugin->isEnabled())

  935.                     plugin->showCustomUI(true);

  936.                 break;

  937. 

  938.             case kPluginBridgeNonRtClientHideUI:

  939.                 if (plugin != nullptr && plugin->isEnabled())

  940.                     plugin->showCustomUI(false);

  941.                 break;

  942. 

  943.             case kPluginBridgeNonRtClientUiParameterChange: {

  944.                 const uint32_t index(fShmNonRtClientControl.readUInt());

  945.                 const float    value(fShmNonRtClientControl.readFloat());

  946. 

  947.                 if (plugin != nullptr && plugin->isEnabled())

  948.                     plugin->uiParameterChange(index, value);

  949.                 break;

  950.             }

  951. 

  952.             case kPluginBridgeNonRtClientUiProgramChange: {

  953.                 const uint32_t index(fShmNonRtClientControl.readUInt());

  954. 

  955.                 if (plugin != nullptr && plugin->isEnabled())

  956.                     plugin->uiProgramChange(index);

  957.                 break;

  958.             }

  959. 

  960.             case kPluginBridgeNonRtClientUiMidiProgramChange: {

  961.                 const uint32_t index(fShmNonRtClientControl.readUInt());

  962. 

  963.                 if (plugin != nullptr && plugin->isEnabled())

  964.                     plugin->uiMidiProgramChange(index);

  965.                 break;

  966.             }

  967. 

  968.             case kPluginBridgeNonRtClientUiNoteOn: {

  969.                 const uint8_t chnl(fShmNonRtClientControl.readByte());

  970.                 const uint8_t note(fShmNonRtClientControl.readByte());

  971.                 const uint8_t velo(fShmNonRtClientControl.readByte());

  972. 

  973.                 if (plugin != nullptr && plugin->isEnabled())

  974.                     plugin->uiNoteOn(chnl, note, velo);

  975.                 break;

  976.             }

  977. 

  978.             case kPluginBridgeNonRtClientUiNoteOff: {

  979.                 const uint8_t chnl(fShmNonRtClientControl.readByte());

  980.                 const uint8_t note(fShmNonRtClientControl.readByte());

  981. 

  982.                 if (plugin != nullptr && plugin->isEnabled())

  983.                     plugin->uiNoteOff(chnl, note);

  984.                 break;

  985.             }

  986. 

  987.             case kPluginBridgeNonRtClientQuit:

  988.                 fClosingDown = true;

  989.                 signalThreadShouldExit();

  990.                 callback(ENGINE_CALLBACK_QUIT, 0, 0, 0, 0.0f, nullptr);

  991.                 break;

  992.             }

  993.         }

  994.     }

  995. 

  996.     // -------------------------------------------------------------------

  997. 

  998. protected:

  999.     void run() override

  1000.     {

  1001. #ifdef __SSE2_MATH__

  1002.         // Set FTZ and DAZ flags

  1003.         _mm_setcsr(_mm_getcsr() | 0x8040);

  1004. #endif

  1005. 

  1006.         bool quitReceived = false;

  1007. 

  1008.         for (; ! shouldThreadExit();)

  1009.         {

  1010.             const BridgeRtClientControl::WaitHelper helper(fShmRtClientControl);

  1011. 

  1012.             if (! helper.ok)

  1013.                 continue;

  1014. 

  1015.             for (; fShmRtClientControl.isDataAvailableForReading();)

  1016.             {

  1017.                 const PluginBridgeRtClientOpcode opcode(fShmRtClientControl.readOpcode());

  1018.                 CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1019. 

  1020. #ifdef DEBUG

  1021.                 if (opcode != kPluginBridgeRtClientProcess && opcode != kPluginBridgeRtClientMidiEvent) {

  1022.                     carla_debug("CarlaEngineBridgeRtThread::run() - got opcode: %s", PluginBridgeRtClientOpcode2str(opcode));

  1023.                 }

  1024. #endif

  1025. 

  1026.                 switch (opcode)

  1027.                 {

  1028.                 case kPluginBridgeRtClientNull:

  1029.                     break;

  1030. 

  1031.                 case kPluginBridgeRtClientSetAudioPool: {

  1032.                     if (fShmAudioPool.data != nullptr)

  1033.                     {

  1034.                         jackbridge_shm_unmap(fShmAudioPool.shm, fShmAudioPool.data);

  1035.                         fShmAudioPool.data = nullptr;

  1036.                     }

  1037.                     const uint64_t poolSize(fShmRtClientControl.readULong());

  1038.                     CARLA_SAFE_ASSERT_BREAK(poolSize > 0);

  1039.                     fShmAudioPool.data = (float*)jackbridge_shm_map(fShmAudioPool.shm, static_cast<size_t>(poolSize));

  1040.                     break;

  1041.                 }

  1042. 

  1043.                 case kPluginBridgeRtClientSetBufferSize: {

  1044.                     const uint32_t bufferSize(fShmRtClientControl.readUInt());

  1045.                     pData->bufferSize = bufferSize;

  1046.                     bufferSizeChanged(bufferSize);

  1047.                     break;

  1048.                 }

  1049. 

  1050.                 case kPluginBridgeRtClientSetSampleRate: {

  1051.                     const double sampleRate(fShmRtClientControl.readDouble());

  1052.                     pData->sampleRate = sampleRate;

  1053.                     sampleRateChanged(sampleRate);

  1054.                     break;

  1055.                 }

  1056. 

  1057.                 case kPluginBridgeRtClientSetOnline:

  1058.                     fIsOffline = fShmRtClientControl.readBool();

  1059.                     offlineModeChanged(fIsOffline);

  1060.                     break;

  1061. 

  1062.                 case kPluginBridgeRtClientControlEventParameter: {

  1063.                     const uint32_t time(fShmRtClientControl.readUInt());

  1064.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1065.                     const uint16_t param(fShmRtClientControl.readUShort());

  1066.                     const float    value(fShmRtClientControl.readFloat());

  1067. 

  1068.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1069.                     {

  1070.                         event->type    = kEngineEventTypeControl;

  1071.                         event->time    = time;

  1072.                         event->channel = channel;

  1073.                         event->ctrl.type  = kEngineControlEventTypeParameter;

  1074.                         event->ctrl.param = param;

  1075.                         event->ctrl.value = value;

  1076.                     }

  1077.                     break;

  1078.                 }

  1079. 

  1080.                 case kPluginBridgeRtClientControlEventMidiBank: {

  1081.                     const uint32_t time(fShmRtClientControl.readUInt());

  1082.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1083.                     const uint16_t index(fShmRtClientControl.readUShort());

  1084. 

  1085.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1086.                     {

  1087.                         event->type    = kEngineEventTypeControl;

  1088.                         event->time    = time;

  1089.                         event->channel = channel;

  1090.                         event->ctrl.type  = kEngineControlEventTypeMidiBank;

  1091.                         event->ctrl.param = index;

  1092.                         event->ctrl.value = 0.0f;

  1093.                     }

  1094.                     break;

  1095.                 }

  1096. 

  1097.                 case kPluginBridgeRtClientControlEventMidiProgram: {

  1098.                     const uint32_t time(fShmRtClientControl.readUInt());

  1099.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1100.                     const uint16_t index(fShmRtClientControl.readUShort());

  1101. 

  1102.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1103.                     {

  1104.                         event->type    = kEngineEventTypeControl;

  1105.                         event->time    = time;

  1106.                         event->channel = channel;

  1107.                         event->ctrl.type  = kEngineControlEventTypeMidiProgram;

  1108.                         event->ctrl.param = index;

  1109.                         event->ctrl.value = 0.0f;

  1110.                     }

  1111.                     break;

  1112.                 }

  1113. 

  1114.                 case kPluginBridgeRtClientControlEventAllSoundOff: {

  1115.                     const uint32_t time(fShmRtClientControl.readUInt());

  1116.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1117. 

  1118.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1119.                     {

  1120.                         event->type    = kEngineEventTypeControl;

  1121.                         event->time    = time;

  1122.                         event->channel = channel;

  1123.                         event->ctrl.type  = kEngineControlEventTypeAllSoundOff;

  1124.                         event->ctrl.param = 0;

  1125.                         event->ctrl.value = 0.0f;

  1126.                     }

  1127.                 }   break;

  1128. 

  1129.                 case kPluginBridgeRtClientControlEventAllNotesOff: {

  1130.                     const uint32_t time(fShmRtClientControl.readUInt());

  1131.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1132. 

  1133.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1134.                     {

  1135.                         event->type    = kEngineEventTypeControl;

  1136.                         event->time    = time;

  1137.                         event->channel = channel;

  1138.                         event->ctrl.type  = kEngineControlEventTypeAllNotesOff;

  1139.                         event->ctrl.param = 0;

  1140.                         event->ctrl.value = 0.0f;

  1141.                     }

  1142.                 }   break;

  1143. 

  1144.                 case kPluginBridgeRtClientMidiEvent: {

  1145.                     const uint32_t time(fShmRtClientControl.readUInt());

  1146.                     const uint8_t  port(fShmRtClientControl.readByte());

  1147.                     const uint8_t  size(fShmRtClientControl.readByte());

  1148.                     CARLA_SAFE_ASSERT_BREAK(size > 0);

  1149. 

  1150.                     // FIXME variable-size stack

  1151.                     uint8_t data[size];

  1152. 

  1153.                     for (uint8_t i=0; i<size; ++i)

  1154.                         data[i] = fShmRtClientControl.readByte();

  1155. 

  1156.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1157.                     {

  1158.                         event->type    = kEngineEventTypeMidi;

  1159.                         event->time    = time;

  1160.                         event->channel = MIDI_GET_CHANNEL_FROM_DATA(data);

  1161. 

  1162.                         event->midi.port = port;

  1163.                         event->midi.size = size;

  1164. 

  1165.                         if (size > EngineMidiEvent::kDataSize)

  1166.                         {

  1167.                             event->midi.dataExt = data;

  1168.                             std::memset(event->midi.data, 0, sizeof(uint8_t)*EngineMidiEvent::kDataSize);

  1169.                         }

  1170.                         else

  1171.                         {

  1172.                             event->midi.data[0] = MIDI_GET_STATUS_FROM_DATA(data);

  1173. 

  1174.                             uint8_t i=1;

  1175.                             for (; i < size; ++i)

  1176.                                 event->midi.data[i] = data[i];

  1177.                             for (; i < EngineMidiEvent::kDataSize; ++i)

  1178.                                 event->midi.data[i] = 0;

  1179. 

  1180.                             event->midi.dataExt = nullptr;

  1181.                         }

  1182.                     }

  1183.                     break;

  1184.                 }

  1185. 

  1186.                 case kPluginBridgeRtClientProcess: {

  1187.                     CARLA_SAFE_ASSERT_BREAK(fShmAudioPool.data != nullptr);

  1188. 

  1189.                     if (plugin != nullptr && plugin->isEnabled() && plugin->tryLock(fIsOffline))

  1190.                     {

  1191.                         const BridgeTimeInfo& bridgeTimeInfo(fShmRtClientControl.data->timeInfo);

  1192. 

  1193.                         const uint32_t audioInCount(plugin->getAudioInCount());

  1194.                         const uint32_t audioOutCount(plugin->getAudioOutCount());

  1195.                         const uint32_t cvInCount(plugin->getCVInCount());

  1196.                         const uint32_t cvOutCount(plugin->getCVOutCount());

  1197. 

  1198.                         const float* audioIn[audioInCount];

  1199.                         /* */ float* audioOut[audioOutCount];

  1200.                         const float* cvIn[cvInCount];

  1201.                         /* */ float* cvOut[cvOutCount];

  1202. 

  1203.                         float* fdata = fShmAudioPool.data;

  1204. 

  1205.                         for (uint32_t i=0; i < audioInCount; ++i, fdata += pData->bufferSize)

  1206.                             audioIn[i] = fdata;

  1207.                         for (uint32_t i=0; i < audioOutCount; ++i, fdata += pData->bufferSize)

  1208.                             audioOut[i] = fdata;

  1209. 

  1210.                         for (uint32_t i=0; i < cvInCount; ++i, fdata += pData->bufferSize)

  1211.                             cvIn[i] = fdata;

  1212.                         for (uint32_t i=0; i < cvOutCount; ++i, fdata += pData->bufferSize)

  1213.                             cvOut[i] = fdata;

  1214. 

  1215.                         EngineTimeInfo& timeInfo(pData->timeInfo);

  1216. 

  1217.                         timeInfo.playing   = bridgeTimeInfo.playing;

  1218.                         timeInfo.frame     = bridgeTimeInfo.frame;

  1219.                         timeInfo.usecs     = bridgeTimeInfo.usecs;

  1220.                         timeInfo.bbt.valid = (bridgeTimeInfo.validFlags & kPluginBridgeTimeInfoValidBBT) != 0;

  1221. 

  1222.                         if (timeInfo.bbt.valid)

  1223.                         {

  1224.                             timeInfo.bbt.bar  = bridgeTimeInfo.bar;

  1225.                             timeInfo.bbt.beat = bridgeTimeInfo.beat;

  1226.                             timeInfo.bbt.tick = bridgeTimeInfo.tick;

  1227. 

  1228.                             timeInfo.bbt.beatsPerBar = bridgeTimeInfo.beatsPerBar;

  1229.                             timeInfo.bbt.beatType    = bridgeTimeInfo.beatType;

  1230. 

  1231.                             timeInfo.bbt.ticksPerBeat   = bridgeTimeInfo.ticksPerBeat;

  1232.                             timeInfo.bbt.beatsPerMinute = bridgeTimeInfo.beatsPerMinute;

  1233.                             timeInfo.bbt.barStartTick   = bridgeTimeInfo.barStartTick;

  1234.                         }

  1235. 

  1236.                         plugin->initBuffers();

  1237.                         plugin->process(audioIn, audioOut, cvIn, cvOut, pData->bufferSize);

  1238.                         plugin->unlock();

  1239.                     }

  1240. 

  1241.                     uint8_t* midiData(fShmRtClientControl.data->midiOut);

  1242.                     carla_zeroBytes(midiData, kBridgeBaseMidiOutHeaderSize);

  1243.                     std::size_t curMidiDataPos = 0;

  1244. 

  1245.                     if (pData->events.in[0].type != kEngineEventTypeNull)

  1246.                         carla_zeroStructs(pData->events.in, kMaxEngineEventInternalCount);

  1247. 

  1248.                     if (pData->events.out[0].type != kEngineEventTypeNull)

  1249.                     {

  1250.                         for (ushort i=0; i < kMaxEngineEventInternalCount; ++i)

  1251.                         {

  1252.                             const EngineEvent& event(pData->events.out[i]);

  1253. 

  1254.                             if (event.type == kEngineEventTypeNull)

  1255.                                 break;

  1256. 

  1257.                             if (event.type == kEngineEventTypeControl)

  1258.                             {

  1259.                                 uint8_t data[3];

  1260.                                 const uint8_t size = event.ctrl.convertToMidiData(event.channel, data);

  1261.                                 CARLA_SAFE_ASSERT_CONTINUE(size > 0 && size <= 3);

  1262. 

  1263.                                 if (curMidiDataPos + kBridgeBaseMidiOutHeaderSize + size >= kBridgeRtClientDataMidiOutSize)

  1264.                                     break;

  1265. 

  1266.                                 // set time

  1267.                                 *(uint32_t*)midiData = event.time;

  1268.                                 midiData = midiData + 4;

  1269.                                 curMidiDataPos += 4;

  1270. 

  1271.                                 // set port

  1272.                                 *midiData++ = 0;

  1273.                                 ++curMidiDataPos;

  1274. 

  1275.                                 // set size

  1276.                                 *midiData++ = size;

  1277.                                 ++curMidiDataPos;

  1278. 

  1279.                                 // set data

  1280.                                 for (uint8_t j=0; j<size; ++j)

  1281.                                     *midiData++ = data[j];

  1282. 

  1283.                                 curMidiDataPos += size;

  1284.                             }

  1285.                             else if (event.type == kEngineEventTypeMidi)

  1286.                             {

  1287.                                 const EngineMidiEvent& _midiEvent(event.midi);

  1288. 

  1289.                                 if (curMidiDataPos + kBridgeBaseMidiOutHeaderSize + _midiEvent.size >= kBridgeRtClientDataMidiOutSize)

  1290.                                     break;

  1291. 

  1292.                                 const uint8_t* const _midiData(_midiEvent.dataExt != nullptr ? _midiEvent.dataExt : _midiEvent.data);

  1293. 

  1294.                                 // set time

  1295.                                 *(uint32_t*)midiData = event.time;

  1296.                                 midiData += 4;

  1297.                                 curMidiDataPos += 4;

  1298. 

  1299.                                 // set port

  1300.                                 *midiData++ = _midiEvent.port;

  1301.                                 ++curMidiDataPos;

  1302. 

  1303.                                 // set size

  1304.                                 *midiData++ = _midiEvent.size;

  1305.                                 ++curMidiDataPos;

  1306. 

  1307.                                 // set data

  1308.                                 *midiData++ = uint8_t(_midiData[0] | (event.channel & MIDI_CHANNEL_BIT));

  1309. 

  1310.                                 for (uint8_t j=1; j<_midiEvent.size; ++j)

  1311.                                     *midiData++ = _midiData[j];

  1312. 

  1313.                                 curMidiDataPos += _midiEvent.size;

  1314.                             }

  1315.                         }

  1316. 

  1317.                         if (curMidiDataPos != 0 &&

  1318.                             curMidiDataPos + kBridgeBaseMidiOutHeaderSize < kBridgeRtClientDataMidiOutSize)

  1319.                             carla_zeroBytes(midiData, kBridgeBaseMidiOutHeaderSize);

  1320. 

  1321.                         carla_zeroStructs(pData->events.out, kMaxEngineEventInternalCount);

  1322.                     }

  1323. 

  1324.                 }   break;

  1325. 

  1326.                 case kPluginBridgeRtClientQuit: {

  1327.                     quitReceived = true;

  1328.                     fClosingDown = true;

  1329.                     signalThreadShouldExit();

  1330.                 }   break;

  1331.                 }

  1332.             }

  1333.         }

  1334. 

  1335.         callback(ENGINE_CALLBACK_ENGINE_STOPPED, 0, 0, 0, 0.0f, nullptr);

  1336. 

  1337.         if (! quitReceived)

  1338.         {

  1339.             const char* const message("Plugin bridge error, process thread has stopped");

  1340.             const std::size_t messageSize(std::strlen(message));

  1341. 

  1342.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1343.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerError);

  1344.             fShmNonRtServerControl.writeUInt(messageSize);

  1345.             fShmNonRtServerControl.writeCustomData(message, messageSize);

  1346.             fShmNonRtServerControl.commitWrite();

  1347.         }

  1348.     }

  1349. 

  1350.     // called from process thread above

  1351.     EngineEvent* getNextFreeInputEvent() const noexcept

  1352.     {

  1353.         for (ushort i=0; i < kMaxEngineEventInternalCount; ++i)

  1354.         {

  1355.             EngineEvent* const event(&pData->events.in[i]);

  1356. 

  1357.             if (event->type == kEngineEventTypeNull)

  1358.                 return event;

  1359.         }

  1360.         return nullptr;

  1361.     }

  1362. 

  1363.     void latencyChanged(const uint32_t samples) noexcept override

  1364.     {

  1365.         const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1366. 

  1367.         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetLatency);

  1368.         fShmNonRtServerControl.writeUInt(samples);

  1369.         fShmNonRtServerControl.commitWrite();

  1370.     }

  1371. 

  1372.     // -------------------------------------------------------------------

  1373. 

  1374. private:

  1375.     BridgeAudioPool          fShmAudioPool;

  1376.     BridgeRtClientControl    fShmRtClientControl;

  1377.     BridgeNonRtClientControl fShmNonRtClientControl;

  1378.     BridgeNonRtServerControl fShmNonRtServerControl;

  1379. 

  1380.     CarlaString fBaseNameAudioPool;

  1381.     CarlaString fBaseNameRtClientControl;

  1382.     CarlaString fBaseNameNonRtClientControl;

  1383.     CarlaString fBaseNameNonRtServerControl;

  1384. 

  1385.     bool fClosingDown;

  1386.     bool fIsOffline;

  1387.     bool fFirstIdle;

  1388.     int64_t fLastPingTime;

  1389. 

  1390.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineBridge)

  1391. };

  1392. 

  1393. // -----------------------------------------------------------------------

  1394. 

  1395. CarlaEngine* CarlaEngine::newBridge(const char* const audioPoolBaseName, const char* const rtClientBaseName, const char* const nonRtClientBaseName, const char* const nonRtServerBaseName)

  1396. {

  1397.     return new CarlaEngineBridge(audioPoolBaseName, rtClientBaseName, nonRtClientBaseName, nonRtServerBaseName);

  1398. }

  1399. 

  1400. // -----------------------------------------------------------------------

  1401. 

  1402. #ifdef BUILD_BRIDGE_ALTERNATIVE_ARCH

  1403. CarlaPlugin* CarlaPlugin::newNative(const CarlaPlugin::Initializer&)              { return nullptr; }

  1404. CarlaPlugin* CarlaPlugin::newFileGIG(const CarlaPlugin::Initializer&, const bool) { return nullptr; }

  1405. CarlaPlugin* CarlaPlugin::newFileSF2(const CarlaPlugin::Initializer&, const bool) { return nullptr; }

  1406. CarlaPlugin* CarlaPlugin::newFileSFZ(const CarlaPlugin::Initializer&)             { return nullptr; }

  1407. #endif

  1408. 

  1409. CARLA_BACKEND_END_NAMESPACE

  1410. 

  1411. // -----------------------------------------------------------------------

  1412. 

  1413. #if defined(CARLA_OS_WIN) && ! defined(__WINE__)

  1414. extern "C" __declspec (dllexport)

  1415. #else

  1416. extern "C" __attribute__ ((visibility("default")))

  1417. #endif

  1418. void carla_register_native_plugin_carla();

  1419. void carla_register_native_plugin_carla(){}

  1420. 

  1421. #include "CarlaBridgeUtils.cpp"

  1422. 

  1423. // -----------------------------------------------------------------------