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Audio plugin host https://kx.studio/carla
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Carla/source/backend/engine/CarlaEngineBridge.cpp

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  1. /*

  2.  * Carla Plugin Host

  3.  * Copyright (C) 2011-2022 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. // must be first so we can undef CARLA_SAFE_*_RETURN_ERR* macros

  23. #include "CarlaPluginInternal.hpp"

  24. #undef CARLA_SAFE_ASSERT_RETURN_ERR

  25. #undef CARLA_SAFE_ASSERT_RETURN_ERRN

  26. #undef CARLA_SAFE_EXCEPTION_RETURN_ERR

  27. #undef CARLA_SAFE_EXCEPTION_RETURN_ERRN

  28. 

  29. #include "CarlaEngineClient.hpp"

  30. #include "CarlaEngineInit.hpp"

  31. 

  32. #include "CarlaBackendUtils.hpp"

  33. #include "CarlaBase64Utils.hpp"

  34. #include "CarlaBridgeUtils.hpp"

  35. #include "CarlaMIDI.h"

  36. 

  37. #ifdef __SSE2_MATH__

  38. # include <xmmintrin.h>

  39. #endif

  40. 

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

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

  43. 

  44. // must be last

  45. #include "jackbridge/JackBridge.hpp"

  46. 

  47. using water::File;

  48. using water::MemoryBlock;

  49. using water::String;

  50. using water::Time;

  51. 

  52. CARLA_BACKEND_START_NAMESPACE

  53. 

  54. // -----------------------------------------------------------------------

  55. // Bridge Engine client

  56. 

  57. struct LatencyChangedCallback {

  58.     virtual ~LatencyChangedCallback() noexcept {}

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

  60. };

  61. 

  62. class CarlaEngineBridgeClient : public CarlaEngineClientForSubclassing

  63. {

  64. public:

  65. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  66.     CarlaEngineBridgeClient(const CarlaEngine& engine,

  67.                             EngineInternalGraph& egraph,

  68.                             const CarlaPluginPtr plugin,

  69.                             LatencyChangedCallback* const cb)

  70.         : CarlaEngineClientForSubclassing(engine, egraph, plugin),

  71.           fLatencyCallback(cb) {}

  72. #else

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

  74.         : CarlaEngineClientForSubclassing(engine),

  75.           fLatencyCallback(cb) {}

  76. #endif

  77. 

  78. protected:

  79.     void setLatency(const uint32_t samples) noexcept override

  80.     {

  81.         if (getLatency() == samples)

  82.             return;

  83. 

  84.         fLatencyCallback->latencyChanged(samples);

  85.         CarlaEngineClient::setLatency(samples);

  86.     }

  87. 

  88. private:

  89.     LatencyChangedCallback* const fLatencyCallback;

  90. 

  91.     CARLA_DECLARE_NON_COPYABLE(CarlaEngineBridgeClient)

  92. };

  93. 

  94. // -------------------------------------------------------------------

  95. 

  96. class CarlaEngineBridge : public CarlaEngine,

  97.                           private CarlaThread,

  98.                           private LatencyChangedCallback

  99. {

  100. public:

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

  102.         : CarlaEngine(),

  103.           CarlaThread("CarlaEngineBridge"),

  104.           fShmAudioPool(),

  105.           fShmRtClientControl(),

  106.           fShmNonRtClientControl(),

  107.           fShmNonRtServerControl(),

  108.           fBaseNameAudioPool(audioPoolBaseName),

  109.           fBaseNameRtClientControl(rtClientBaseName),

  110.           fBaseNameNonRtClientControl(nonRtClientBaseName),

  111.           fBaseNameNonRtServerControl(nonRtServerBaseName),

  112.           fClosingDown(false),

  113.           fIsOffline(false),

  114.           fFirstIdle(true),

  115.           fLastPingTime(-1)

  116.     {

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

  118.     }

  119. 

  120.     ~CarlaEngineBridge() noexcept override

  121.     {

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

  123. 

  124.         clear();

  125.     }

  126. 

  127.     // -------------------------------------

  128.     // CarlaEngine virtual calls

  129. 

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

  131.     {

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

  133. 

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

  135.         {

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

  137.             return false;

  138.         }

  139. 

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

  141.         {

  142.             pData->close();

  143.             setLastError("Failed to attach to audio pool shared memory");

  144.             return false;

  145.         }

  146. 

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

  148.         {

  149.             pData->close();

  150.             clear();

  151.             setLastError("Failed to attach to rt client control shared memory");

  152.             return false;

  153.         }

  154. 

  155.         if (! fShmRtClientControl.mapData())

  156.         {

  157.             pData->close();

  158.             clear();

  159.             setLastError("Failed to map rt client control shared memory");

  160.             return false;

  161.         }

  162. 

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

  164.         {

  165.             pData->close();

  166.             clear();

  167.             setLastError("Failed to attach to non-rt client control shared memory");

  168.             return false;

  169.         }

  170. 

  171.         if (! fShmNonRtClientControl.mapData())

  172.         {

  173.             pData->close();

  174.             clear();

  175.             setLastError("Failed to map non-rt control client shared memory");

  176.             return false;

  177.         }

  178. 

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

  180.         {

  181.             pData->close();

  182.             clear();

  183.             setLastError("Failed to attach to non-rt server control shared memory");

  184.             return false;

  185.         }

  186. 

  187.         if (! fShmNonRtServerControl.mapData())

  188.         {

  189.             pData->close();

  190.             clear();

  191.             setLastError("Failed to map non-rt control server shared memory");

  192.             return false;

  193.         }

  194. 

  195.         PluginBridgeNonRtClientOpcode opcode;

  196. 

  197.         opcode = fShmNonRtClientControl.readOpcode();

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

  199. 

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

  201.         CARLA_SAFE_ASSERT_RETURN(apiVersion >= CARLA_PLUGIN_BRIDGE_API_VERSION_MINIMUM, false);

  202. 

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

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

  205. 

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

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

  208. 

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

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

  211. 

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

  213.             shmNonRtClientDataSize != sizeof(BridgeNonRtClientData) ||

  214.             shmNonRtServerDataSize != sizeof(BridgeNonRtServerData))

  215.         {

  216.             pData->close();

  217.             clear();

  218.             setLastError("Shared memory data size mismatch");

  219.             return false;

  220.         }

  221. 

  222.         opcode = fShmNonRtClientControl.readOpcode();

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

  224. 

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

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

  227. 

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

  229.         {

  230.             pData->close();

  231.             clear();

  232.             setLastError("Shared memory has invalid data");

  233.             return false;

  234.         }

  235. 

  236.         pData->initTime(nullptr);

  237. 

  238.         // tell backend we're live

  239.         {

  240.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  241. 

  242.             // kPluginBridgeNonRtServerVersion was added in API 7

  243.             if (apiVersion >= 7)

  244.             {

  245.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerVersion);

  246.                 fShmNonRtServerControl.writeUInt(CARLA_PLUGIN_BRIDGE_API_VERSION_CURRENT);

  247.             }

  248.             else

  249.             {

  250.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPong);

  251.             }

  252. 

  253.             fShmNonRtServerControl.commitWrite();

  254.         }

  255. 

  256.         startThread(true);

  257.         return true;

  258.     }

  259. 

  260.     bool close() override

  261.     {

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

  263.         fLastPingTime = -1;

  264. 

  265.         CarlaEngine::close();

  266. 

  267.         stopThread(5000);

  268.         clear();

  269. 

  270.         return true;

  271.     }

  272. 

  273.     bool hasIdleOnMainThread() const noexcept override

  274.     {

  275.         return true;

  276.     }

  277. 

  278.     bool isRunning() const noexcept override

  279.     {

  280.         if (fClosingDown)

  281.             return false;

  282. 

  283.         return isThreadRunning() || ! fFirstIdle;

  284.     }

  285. 

  286.     bool isOffline() const noexcept override

  287.     {

  288.         return fIsOffline;

  289.     }

  290. 

  291.     EngineType getType() const noexcept override

  292.     {

  293.         return kEngineTypeBridge;

  294.     }

  295. 

  296.     const char* getCurrentDriverName() const noexcept override

  297.     {

  298.         return "Bridge";

  299.     }

  300. 

  301.     void touchPluginParameter(const uint id, const uint32_t parameterId, const bool touch) noexcept override

  302.     {

  303.         CARLA_SAFE_ASSERT_RETURN(id == 0,);

  304. 

  305.         const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  306.         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterTouch);

  307.         fShmNonRtServerControl.writeUInt(parameterId);

  308.         fShmNonRtServerControl.writeBool(touch);

  309.         fShmNonRtServerControl.commitWrite();

  310.     }

  311. 

  312.     CarlaEngineClient* addClient(const CarlaPluginPtr plugin) override

  313.     {

  314. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  315.         return new CarlaEngineBridgeClient(*this, pData->graph, plugin, this);

  316. #else

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

  318. 

  319.         // unused

  320.         (void)plugin;

  321. #endif

  322.     }

  323. 

  324.     void idle() noexcept override

  325.     {

  326.         const CarlaPluginPtr plugin = pData->plugins[0].plugin;

  327. 

  328.         if (plugin.get() == nullptr)

  329.         {

  330.             if (const uint32_t length = static_cast<uint32_t>(pData->lastError.length()))

  331.             {

  332.                 const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  333.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerError);

  334.                 fShmNonRtServerControl.writeUInt(length);

  335.                 fShmNonRtServerControl.writeCustomData(pData->lastError.buffer(), length);

  336.                 fShmNonRtServerControl.commitWrite();

  337.             }

  338. 

  339.             signalThreadShouldExit();

  340.             callback(true, true, ENGINE_CALLBACK_QUIT, 0, 0, 0, 0, 0.0f, nullptr);

  341.             return;

  342.         }

  343. 

  344.         const bool wasFirstIdle(fFirstIdle);

  345. 

  346.         if (wasFirstIdle)

  347.         {

  348.             fFirstIdle = false;

  349.             fLastPingTime = Time::currentTimeMillis();

  350.             CARLA_SAFE_ASSERT(fLastPingTime > 0);

  351. 

  352.             char bufStr[STR_MAX+1];

  353.             carla_zeroChars(bufStr, STR_MAX+1);

  354. 

  355.             uint32_t bufStrSize;

  356. 

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

  358.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  359. 

  360.             // kPluginBridgeNonRtServerPluginInfo1

  361.             {

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

  363.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPluginInfo1);

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

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

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

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

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

  369.                 fShmNonRtServerControl.commitWrite();

  370.             }

  371. 

  372.             // kPluginBridgeNonRtServerPluginInfo2

  373.             {

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

  375.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPluginInfo2);

  376. 

  377.                 if (! plugin->getRealName(bufStr))

  378.                     bufStr[0] = '\0';

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

  380.                 fShmNonRtServerControl.writeUInt(bufStrSize);

  381.                 fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  382. 

  383.                 if (! plugin->getLabel(bufStr))

  384.                     bufStr[0] = '\0';

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

  386.                 fShmNonRtServerControl.writeUInt(bufStrSize);

  387.                 fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  388. 

  389.                 if (! plugin->getMaker(bufStr))

  390.                     bufStr[0] = '\0';

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

  392.                 fShmNonRtServerControl.writeUInt(bufStrSize);

  393.                 fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  394. 

  395.                 if (! plugin->getCopyright(bufStr))

  396.                     bufStr[0] = '\0';

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

  398.                 fShmNonRtServerControl.writeUInt(bufStrSize);

  399.                 fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  400. 

  401.                 fShmNonRtServerControl.commitWrite();

  402.             }

  403. 

  404.             // kPluginBridgeNonRtServerAudioCount

  405.             {

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

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

  408. 

  409.                 // uint/ins, uint/outs

  410.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerAudioCount);

  411.                 fShmNonRtServerControl.writeUInt(aIns);

  412.                 fShmNonRtServerControl.writeUInt(aOuts);

  413.                 fShmNonRtServerControl.commitWrite();

  414. 

  415.                 // kPluginBridgeNonRtServerPortName

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

  417.                 {

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

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

  420. 

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

  422.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPortName);

  423.                     fShmNonRtServerControl.writeByte(kPluginBridgePortAudioInput);

  424.                     fShmNonRtServerControl.writeUInt(i);

  425. 

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

  427.                     fShmNonRtServerControl.writeUInt(bufStrSize);

  428.                     fShmNonRtServerControl.writeCustomData(portName, bufStrSize);

  429.                 }

  430. 

  431.                 // kPluginBridgeNonRtServerPortName

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

  433.                 {

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

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

  436. 

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

  438.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPortName);

  439.                     fShmNonRtServerControl.writeByte(kPluginBridgePortAudioOutput);

  440.                     fShmNonRtServerControl.writeUInt(i);

  441. 

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

  443.                     fShmNonRtServerControl.writeUInt(bufStrSize);

  444.                     fShmNonRtServerControl.writeCustomData(portName, bufStrSize);

  445.                 }

  446.             }

  447. 

  448.             fShmNonRtServerControl.waitIfDataIsReachingLimit();

  449. 

  450.             // kPluginBridgeNonRtServerMidiCount

  451.             {

  452.                 // uint/ins, uint/outs

  453.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerMidiCount);

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

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

  456.                 fShmNonRtServerControl.commitWrite();

  457.             }

  458. 

  459.             fShmNonRtServerControl.waitIfDataIsReachingLimit();

  460. 

  461.             // kPluginBridgeNonRtServerCvCount

  462.             {

  463.                 // uint/ins, uint/outs

  464.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerCvCount);

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

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

  467.                 fShmNonRtServerControl.commitWrite();

  468.             }

  469. 

  470.             fShmNonRtServerControl.waitIfDataIsReachingLimit();

  471. 

  472.             // kPluginBridgeNonRtServerParameter*

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

  474.             {

  475.                 // uint/count

  476.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterCount);

  477.                 fShmNonRtServerControl.writeUInt(count);

  478.                 fShmNonRtServerControl.commitWrite();

  479. 

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

  481.                 {

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

  483. 

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

  485.                         continue;

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

  487.                         continue;

  488. 

  489.                     // kPluginBridgeNonRtServerParameterData1

  490.                     {

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

  492.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterData1);

  493.                         fShmNonRtServerControl.writeUInt(i);

  494.                         fShmNonRtServerControl.writeInt(paramData.rindex);

  495.                         fShmNonRtServerControl.writeUInt(paramData.type);

  496.                         fShmNonRtServerControl.writeUInt(paramData.hints);

  497.                         fShmNonRtServerControl.writeShort(paramData.mappedControlIndex);

  498.                         fShmNonRtServerControl.commitWrite();

  499.                     }

  500. 

  501.                     // kPluginBridgeNonRtServerParameterData2

  502.                     {

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

  504.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterData2);

  505.                         fShmNonRtServerControl.writeUInt(i);

  506. 

  507.                         if (! plugin->getParameterName(i, bufStr))

  508.                             std::snprintf(bufStr, STR_MAX, "Param %u", i+1);

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

  510.                         fShmNonRtServerControl.writeUInt(bufStrSize);

  511.                         fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  512. 

  513.                         if (! plugin->getParameterSymbol(i, bufStr))

  514.                             bufStr[0] = '\0';

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

  516.                         fShmNonRtServerControl.writeUInt(bufStrSize);

  517.                         fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  518. 

  519.                         if (! plugin->getParameterUnit(i, bufStr))

  520.                             bufStr[0] = '\0';

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

  522.                         fShmNonRtServerControl.writeUInt(bufStrSize);

  523.                         fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  524. 

  525.                         fShmNonRtServerControl.commitWrite();

  526.                     }

  527. 

  528.                     // kPluginBridgeNonRtServerParameterRanges

  529.                     {

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

  531. 

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

  533.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterRanges);

  534.                         fShmNonRtServerControl.writeUInt(i);

  535.                         fShmNonRtServerControl.writeFloat(paramRanges.def);

  536.                         fShmNonRtServerControl.writeFloat(paramRanges.min);

  537.                         fShmNonRtServerControl.writeFloat(paramRanges.max);

  538.                         fShmNonRtServerControl.writeFloat(paramRanges.step);

  539.                         fShmNonRtServerControl.writeFloat(paramRanges.stepSmall);

  540.                         fShmNonRtServerControl.writeFloat(paramRanges.stepLarge);

  541.                         fShmNonRtServerControl.commitWrite();

  542.                     }

  543. 

  544.                     // kPluginBridgeNonRtServerParameterValue2

  545.                     {

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

  547.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterValue2);

  548.                         fShmNonRtServerControl.writeUInt(i);

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

  550.                         fShmNonRtServerControl.commitWrite();

  551.                     }

  552. 

  553.                     fShmNonRtServerControl.waitIfDataIsReachingLimit();

  554.                 }

  555.             }

  556. 

  557.             // kPluginBridgeNonRtServerProgram*

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

  559.             {

  560.                 // uint/count

  561.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerProgramCount);

  562.                 fShmNonRtServerControl.writeUInt(count);

  563.                 fShmNonRtServerControl.commitWrite();

  564. 

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

  566.                 {

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

  568.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerProgramName);

  569.                     fShmNonRtServerControl.writeUInt(i);

  570. 

  571.                     if (! plugin->getProgramName(i, bufStr))

  572.                         bufStr[0] = '\0';

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

  574.                     fShmNonRtServerControl.writeUInt(bufStrSize);

  575.                     fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  576. 

  577.                     fShmNonRtServerControl.commitWrite();

  578.                     fShmNonRtServerControl.waitIfDataIsReachingLimit();

  579.                 }

  580.             }

  581. 

  582.             // kPluginBridgeNonRtServerMidiProgram*

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

  584.             {

  585.                 // uint/count

  586.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerMidiProgramCount);

  587.                 fShmNonRtServerControl.writeUInt(count);

  588.                 fShmNonRtServerControl.commitWrite();

  589. 

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

  591.                 {

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

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

  594. 

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

  596.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerMidiProgramData);

  597.                     fShmNonRtServerControl.writeUInt(i);

  598.                     fShmNonRtServerControl.writeUInt(mpData.bank);

  599.                     fShmNonRtServerControl.writeUInt(mpData.program);

  600. 

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

  602.                     fShmNonRtServerControl.writeUInt(bufStrSize);

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

  604. 

  605.                     fShmNonRtServerControl.commitWrite();

  606.                     fShmNonRtServerControl.waitIfDataIsReachingLimit();

  607.                 }

  608.             }

  609. 

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

  611.             {

  612.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetLatency);

  613.                 fShmNonRtServerControl.writeUInt(latency);

  614.                 fShmNonRtServerControl.commitWrite();

  615.             }

  616. 

  617.             // ready!

  618.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerReady);

  619.             fShmNonRtServerControl.commitWrite();

  620.             fShmNonRtServerControl.waitIfDataIsReachingLimit();

  621. 

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

  623.             fLastPingTime = Time::currentTimeMillis();

  624.         }

  625. 

  626.         // send parameter outputs

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

  628.         {

  629.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  630. 

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

  632.             {

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

  634.                     continue;

  635. 

  636.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterValue2);

  637.                 fShmNonRtServerControl.writeUInt(i);

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

  639. 

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

  641.                 if (! fShmNonRtServerControl.commitWrite())

  642.                     break;

  643.             }

  644.         }

  645. 

  646.         CarlaEngine::idle();

  647. 

  648.         try {

  649.             handleNonRtData();

  650.         } CARLA_SAFE_EXCEPTION("handleNonRtData");

  651. 

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

  653.         {

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

  655.             signalThreadShouldExit();

  656.             callback(true, true, ENGINE_CALLBACK_QUIT, 0, 0, 0, 0, 0.0f, nullptr);

  657.         }

  658.     }

  659. 

  660.     void callback(const bool sendHost, const bool sendOsc,

  661.                   const EngineCallbackOpcode action, const uint pluginId,

  662.                   const int value1, const int value2, const int value3,

  663.                   const float valuef, const char* const valueStr) noexcept override

  664.     {

  665.         CarlaEngine::callback(sendHost, sendOsc, action, pluginId, value1, value2, value3, valuef, valueStr);

  666. 

  667.         if (fClosingDown || ! sendHost)

  668.             return;

  669. 

  670.         switch (action)

  671.         {

  672.         // uint/index float/value

  673.         case ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED: {

  674.             CARLA_SAFE_ASSERT_BREAK(value1 >= 0);

  675.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  676.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterValue);

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

  678.             fShmNonRtServerControl.writeFloat(valuef);

  679.             fShmNonRtServerControl.commitWrite();

  680.         }   break;

  681. 

  682.         // uint/index float/value

  683.         case ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED: {

  684.             CARLA_SAFE_ASSERT_BREAK(value1 >= 0);

  685.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  686.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerDefaultValue);

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

  688.             fShmNonRtServerControl.writeFloat(valuef);

  689.             fShmNonRtServerControl.commitWrite();

  690.         }   break;

  691. 

  692.         // int/index

  693.         case ENGINE_CALLBACK_PROGRAM_CHANGED: {

  694.             CARLA_SAFE_ASSERT_BREAK(value1 >= -1);

  695.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  696.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerCurrentProgram);

  697.             fShmNonRtServerControl.writeInt(value1);

  698.             fShmNonRtServerControl.commitWrite();

  699.         }   break;

  700. 

  701.         // int/index

  702.         case ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED: {

  703.             CARLA_SAFE_ASSERT_BREAK(value1 >= -1);

  704.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  705.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerCurrentMidiProgram);

  706.             fShmNonRtServerControl.writeInt(value1);

  707.             fShmNonRtServerControl.commitWrite();

  708.         }   break;

  709. 

  710.         case ENGINE_CALLBACK_UI_STATE_CHANGED:

  711.             if (value1 != 1)

  712.             {

  713.                 const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  714.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerUiClosed);

  715.                 fShmNonRtServerControl.commitWrite();

  716.             }

  717.             break;

  718. 

  719.         case ENGINE_CALLBACK_EMBED_UI_RESIZED: {

  720.             CARLA_SAFE_ASSERT_BREAK(value1 > 1);

  721.             CARLA_SAFE_ASSERT_BREAK(value2 > 1);

  722. 

  723.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  724. 

  725.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerResizeEmbedUI);

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

  727.             fShmNonRtServerControl.writeUInt(static_cast<uint>(value2));

  728.             fShmNonRtServerControl.commitWrite();

  729.         }   break;

  730. 

  731.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  732.             if (const CarlaPluginPtr plugin = pData->plugins[0].plugin)

  733.             {

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

  735.                 {

  736.                     const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  737. 

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

  739.                     {

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

  741. 

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

  743.                             continue;

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

  745.                             continue;

  746. 

  747.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterValue);

  748.                         fShmNonRtServerControl.writeUInt(i);

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

  750.                         fShmNonRtServerControl.commitWrite();

  751. 

  752.                         fShmNonRtServerControl.waitIfDataIsReachingLimit();

  753.                     }

  754.                 }

  755.             }

  756.             break;

  757. 

  758.         default:

  759.             break;

  760.         }

  761.     }

  762. 

  763.     // -------------------------------------------------------------------

  764. 

  765.     void clear() noexcept

  766.     {

  767.         fShmAudioPool.clear();

  768.         fShmRtClientControl.clear();

  769.         fShmNonRtClientControl.clear();

  770.         fShmNonRtServerControl.clear();

  771.     }

  772. 

  773.     void handleNonRtData()

  774.     {

  775.         const CarlaPluginPtr plugin = pData->plugins[0].plugin;

  776.         CARLA_SAFE_ASSERT_RETURN(plugin.get() != nullptr,);

  777. 

  778.         for (; fShmNonRtClientControl.isDataAvailableForReading();)

  779.         {

  780.             const PluginBridgeNonRtClientOpcode opcode = fShmNonRtClientControl.readOpcode();

  781. 

  782. #ifdef DEBUG

  783.             if (opcode != kPluginBridgeNonRtClientPing) {

  784.                 carla_debug("CarlaEngineBridge::handleNonRtData() - got opcode: %i:%s",

  785.                             opcode, PluginBridgeNonRtClientOpcode2str(opcode));

  786.             }

  787. #endif

  788. 

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

  790.                 fLastPingTime = Time::currentTimeMillis();

  791. 

  792.             switch (opcode)

  793.             {

  794.             case kPluginBridgeNonRtClientNull:

  795.                 break;

  796. 

  797.             case kPluginBridgeNonRtClientVersion: {

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

  799.                 CARLA_SAFE_ASSERT_UINT2(apiVersion >= CARLA_PLUGIN_BRIDGE_API_VERSION_MINIMUM,

  800.                                         apiVersion, CARLA_PLUGIN_BRIDGE_API_VERSION_MINIMUM);

  801.             }   break;

  802. 

  803.             case kPluginBridgeNonRtClientPing: {

  804.                 const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  805. 

  806.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPong);

  807.                 fShmNonRtServerControl.commitWrite();

  808.             }   break;

  809. 

  810.             case kPluginBridgeNonRtClientPingOnOff: {

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

  812. 

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

  814.             }   break;

  815. 

  816.             case kPluginBridgeNonRtClientActivate:

  817.                 if (plugin->isEnabled())

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

  819.                 break;

  820. 

  821.             case kPluginBridgeNonRtClientDeactivate:

  822.                 if (plugin->isEnabled())

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

  824.                 break;

  825. 

  826.             case kPluginBridgeNonRtClientInitialSetup:

  827.                 // should never happen!!

  828.                 fShmNonRtServerControl.readUInt();

  829.                 fShmNonRtServerControl.readDouble();

  830.                 break;

  831. 

  832.             case kPluginBridgeNonRtClientSetParameterValue: {

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

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

  835. 

  836.                 if (plugin->isEnabled())

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

  838.                 break;

  839.             }

  840. 

  841.             case kPluginBridgeNonRtClientSetParameterMidiChannel: {

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

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

  844. 

  845.                 if (plugin->isEnabled())

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

  847.                 break;

  848.             }

  849. 

  850.             case kPluginBridgeNonRtClientSetParameterMappedControlIndex: {

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

  852.                 const int16_t  ctrl(fShmNonRtClientControl.readShort());

  853. 

  854.                 if (plugin->isEnabled())

  855.                     plugin->setParameterMappedControlIndex(index, ctrl, false, false, true);

  856.                 break;

  857.             }

  858. 

  859.             case kPluginBridgeNonRtClientSetParameterMappedRange: {

  860.                 const uint32_t index   = fShmNonRtClientControl.readUInt();

  861.                 const float    minimum = fShmNonRtClientControl.readFloat();

  862.                 const float    maximum = fShmNonRtClientControl.readFloat();

  863. 

  864.                 if (plugin->isEnabled())

  865.                     plugin->setParameterMappedRange(index, minimum, maximum, false, false);

  866.                 break;

  867.             }

  868. 

  869.             case kPluginBridgeNonRtClientSetProgram: {

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

  871. 

  872.                 if (plugin->isEnabled())

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

  874.                 break;

  875.             }

  876. 

  877.             case kPluginBridgeNonRtClientSetMidiProgram: {

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

  879. 

  880.                 if (plugin->isEnabled())

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

  882.                 break;

  883.             }

  884. 

  885.             case kPluginBridgeNonRtClientSetCustomData: {

  886.                 // type

  887.                 const uint32_t typeSize = fShmNonRtClientControl.readUInt();

  888.                 char typeStr[typeSize+1];

  889.                 carla_zeroChars(typeStr, typeSize+1);

  890.                 fShmNonRtClientControl.readCustomData(typeStr, typeSize);

  891. 

  892.                 // key

  893.                 const uint32_t keySize = fShmNonRtClientControl.readUInt();

  894.                 char keyStr[keySize+1];

  895.                 carla_zeroChars(keyStr, keySize+1);

  896.                 fShmNonRtClientControl.readCustomData(keyStr, keySize);

  897. 

  898.                 // value

  899.                 const uint32_t valueSize = fShmNonRtClientControl.readUInt();

  900. 

  901.                 if (valueSize > 0)

  902.                 {

  903.                     if (valueSize > 16384)

  904.                     {

  905.                         const uint32_t bigValueFilePathSize = fShmNonRtClientControl.readUInt();

  906.                         char bigValueFilePathTry[bigValueFilePathSize+1];

  907.                         carla_zeroChars(bigValueFilePathTry, bigValueFilePathSize+1);

  908.                         fShmNonRtClientControl.readCustomData(bigValueFilePathTry, bigValueFilePathSize);

  909. 

  910.                         CARLA_SAFE_ASSERT_BREAK(bigValueFilePathTry[0] != '\0');

  911.                         if (! plugin->isEnabled()) break;

  912. 

  913.                         String bigValueFilePath(bigValueFilePathTry);

  914. 

  915. #ifdef CARLA_OS_WIN

  916.                         // check if running under Wine

  917.                         if (bigValueFilePath.startsWith("/"))

  918.                             bigValueFilePath = bigValueFilePath.replaceSection(0, 1, "Z:\\").replace("/", "\\");

  919. #endif

  920. 

  921.                         File bigValueFile(bigValueFilePath);

  922.                         CARLA_SAFE_ASSERT_BREAK(bigValueFile.existsAsFile());

  923. 

  924.                         plugin->setCustomData(typeStr, keyStr, bigValueFile.loadFileAsString().toRawUTF8(), true);

  925. 

  926.                         bigValueFile.deleteFile();

  927.                     }

  928.                     else

  929.                     {

  930.                         char valueStr[valueSize+1];

  931.                         carla_zeroChars(valueStr, valueSize+1);

  932.                         fShmNonRtClientControl.readCustomData(valueStr, valueSize);

  933. 

  934.                         if (plugin->isEnabled())

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

  936.                     }

  937.                 }

  938.                 else

  939.                 {

  940.                     if (plugin->isEnabled())

  941.                         plugin->setCustomData(typeStr, keyStr, "", true);

  942.                 }

  943. 

  944.                 break;

  945.             }

  946. 

  947.             case kPluginBridgeNonRtClientSetChunkDataFile: {

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

  949.                 CARLA_SAFE_ASSERT_BREAK(size > 0);

  950. 

  951.                 char chunkFilePathTry[size+1];

  952.                 carla_zeroChars(chunkFilePathTry, size+1);

  953.                 fShmNonRtClientControl.readCustomData(chunkFilePathTry, size);

  954. 

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

  956.                 if (! plugin->isEnabled()) break;

  957. 

  958.                 String chunkFilePath(chunkFilePathTry);

  959. 

  960. #ifdef CARLA_OS_WIN

  961.                 // check if running under Wine

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

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

  964. #endif

  965. 

  966.                 File chunkFile(chunkFilePath);

  967.                 CARLA_SAFE_ASSERT_BREAK(chunkFile.existsAsFile());

  968. 

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

  970.                 chunkFile.deleteFile();

  971.                 CARLA_SAFE_ASSERT_BREAK(chunkDataBase64.isNotEmpty());

  972. 

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

  974. 

  975. #ifdef CARLA_PROPER_CPP11_SUPPORT

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

  977. #else

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

  979. #endif

  980.                 break;

  981.             }

  982. 

  983.             case kPluginBridgeNonRtClientSetCtrlChannel: {

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

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

  986. 

  987.                 if (plugin->isEnabled())

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

  989.                 break;

  990.             }

  991. 

  992.             case kPluginBridgeNonRtClientSetOption: {

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

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

  995. 

  996.                 if (plugin->isEnabled())

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

  998.                 break;

  999.             }

  1000. 

  1001.             case kPluginBridgeNonRtClientSetOptions: {

  1002.                 const uint32_t options(fShmNonRtClientControl.readUInt());

  1003. 

  1004.                 plugin->pData->options = options;

  1005.                 break;

  1006.             }

  1007. 

  1008.             case kPluginBridgeNonRtClientSetWindowTitle: {

  1009.                 const uint32_t size = fShmNonRtClientControl.readUInt();

  1010.                 CARLA_SAFE_ASSERT_BREAK(size > 0);

  1011. 

  1012.                 char title[size+1];

  1013.                 carla_zeroChars(title, size+1);

  1014.                 fShmNonRtClientControl.readCustomData(title, size);

  1015. 

  1016.                 plugin->setCustomUITitle(title);

  1017.                 break;

  1018.             }

  1019. 

  1020.             case kPluginBridgeNonRtClientGetParameterText: {

  1021.                 const int32_t index = fShmNonRtClientControl.readInt();

  1022. 

  1023.                 if (index >= 0 && plugin->isEnabled())

  1024.                 {

  1025.                     char bufStr[STR_MAX+1];

  1026.                     carla_zeroChars(bufStr, STR_MAX+1);

  1027.                     if (! plugin->getParameterText(static_cast<uint32_t>(index), bufStr))

  1028.                         bufStr[0] = '\0';

  1029. 

  1030.                     const uint32_t bufStrLen = static_cast<uint32_t>(std::strlen(bufStr));

  1031. 

  1032.                     const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1033. 

  1034.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetParameterText);

  1035. 

  1036.                     fShmNonRtServerControl.writeInt(index);

  1037.                     fShmNonRtServerControl.writeUInt(bufStrLen);

  1038.                     fShmNonRtServerControl.writeCustomData(bufStr, bufStrLen);

  1039.                     fShmNonRtServerControl.commitWrite();

  1040. 

  1041.                     fShmNonRtServerControl.waitIfDataIsReachingLimit();

  1042.                 }

  1043.                 else

  1044.                 {

  1045.                     const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1046. 

  1047.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetParameterText);

  1048.                     fShmNonRtServerControl.writeInt(index);

  1049.                     fShmNonRtServerControl.writeUInt(0);

  1050.                     fShmNonRtServerControl.commitWrite();

  1051.                 }

  1052. 

  1053.                 break;

  1054.             }

  1055. 

  1056.             case kPluginBridgeNonRtClientPrepareForSave: {

  1057.                 if (! plugin->isEnabled())

  1058.                 {

  1059.                     const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1060.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSaved);

  1061.                     fShmNonRtServerControl.commitWrite();

  1062.                     return;

  1063.                 }

  1064. 

  1065.                 plugin->prepareForSave(false);

  1066. 

  1067.                 for (uint32_t i=0, count=plugin->getCustomDataCount(); i<count; ++i)

  1068.                 {

  1069.                     const CustomData& cdata(plugin->getCustomData(i));

  1070. 

  1071.                     if (std::strcmp(cdata.type, CUSTOM_DATA_TYPE_PROPERTY) == 0)

  1072.                         continue;

  1073. 

  1074.                     const uint32_t typeLen  = static_cast<uint32_t>(std::strlen(cdata.type));

  1075.                     const uint32_t keyLen   = static_cast<uint32_t>(std::strlen(cdata.key));

  1076.                     const uint32_t valueLen = static_cast<uint32_t>(std::strlen(cdata.value));

  1077. 

  1078.                     if (valueLen > 16384)

  1079.                         fShmNonRtServerControl.waitIfDataIsReachingLimit();

  1080. 

  1081.                     {

  1082.                         const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1083. 

  1084.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetCustomData);

  1085. 

  1086.                         fShmNonRtServerControl.writeUInt(typeLen);

  1087.                         fShmNonRtServerControl.writeCustomData(cdata.type, typeLen);

  1088. 

  1089.                         fShmNonRtServerControl.writeUInt(keyLen);

  1090.                         fShmNonRtServerControl.writeCustomData(cdata.key, keyLen);

  1091. 

  1092.                         fShmNonRtServerControl.writeUInt(valueLen);

  1093. 

  1094.                         if (valueLen > 0)

  1095.                         {

  1096.                             if (valueLen > 16384)

  1097.                             {

  1098.                                 String filePath(File::getSpecialLocation(File::tempDirectory).getFullPathName());

  1099. 

  1100.                                 filePath += CARLA_OS_SEP_STR ".CarlaCustomData_";

  1101.                                 filePath += fShmAudioPool.getFilenameSuffix();

  1102. 

  1103.                                 if (File(filePath).replaceWithText(cdata.value))

  1104.                                 {

  1105.                                     const uint32_t ulength(static_cast<uint32_t>(filePath.length()));

  1106. 

  1107.                                     fShmNonRtServerControl.writeUInt(ulength);

  1108.                                     fShmNonRtServerControl.writeCustomData(filePath.toRawUTF8(), ulength);

  1109.                                 }

  1110.                                 else

  1111.                                 {

  1112.                                     fShmNonRtServerControl.writeUInt(0);

  1113.                                 }

  1114.                             }

  1115.                             else

  1116.                             {

  1117.                                 fShmNonRtServerControl.writeCustomData(cdata.value, valueLen);

  1118.                             }

  1119.                         }

  1120. 

  1121.                         fShmNonRtServerControl.commitWrite();

  1122.                     }

  1123. 

  1124.                     fShmNonRtServerControl.waitIfDataIsReachingLimit();

  1125.                 }

  1126. 

  1127.                 if (plugin->getOptionsEnabled() & PLUGIN_OPTION_USE_CHUNKS)

  1128.                 {

  1129.                     void* data = nullptr;

  1130.                     if (const std::size_t dataSize = plugin->getChunkData(&data))

  1131.                     {

  1132.                         CARLA_SAFE_ASSERT_BREAK(data != nullptr);

  1133. 

  1134.                         CarlaString dataBase64 = CarlaString::asBase64(data, dataSize);

  1135.                         CARLA_SAFE_ASSERT_BREAK(dataBase64.length() > 0);

  1136. 

  1137.                         String filePath(File::getSpecialLocation(File::tempDirectory).getFullPathName());

  1138. 

  1139.                         filePath += CARLA_OS_SEP_STR ".CarlaChunk_";

  1140.                         filePath += fShmAudioPool.getFilenameSuffix();

  1141. 

  1142.                         if (File(filePath).replaceWithText(dataBase64.buffer()))

  1143.                         {

  1144.                             const uint32_t ulength(static_cast<uint32_t>(filePath.length()));

  1145. 

  1146.                             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1147. 

  1148.                             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetChunkDataFile);

  1149.                             fShmNonRtServerControl.writeUInt(ulength);

  1150.                             fShmNonRtServerControl.writeCustomData(filePath.toRawUTF8(), ulength);

  1151.                             fShmNonRtServerControl.commitWrite();

  1152.                         }

  1153.                     }

  1154.                 }

  1155. 

  1156.                 {

  1157.                     const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1158. 

  1159.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSaved);

  1160.                     fShmNonRtServerControl.commitWrite();

  1161.                 }

  1162.                 break;

  1163.             }

  1164. 

  1165.             case kPluginBridgeNonRtClientRestoreLV2State:

  1166.                 if (plugin->isEnabled())

  1167.                     plugin->restoreLV2State(false);

  1168.                 break;

  1169. 

  1170.             case kPluginBridgeNonRtClientShowUI:

  1171.                 if (plugin->isEnabled())

  1172.                     plugin->showCustomUI(true);

  1173.                 break;

  1174. 

  1175.             case kPluginBridgeNonRtClientHideUI:

  1176.                 if (plugin->isEnabled())

  1177.                     plugin->showCustomUI(false);

  1178.                 break;

  1179. 

  1180.             case kPluginBridgeNonRtClientEmbedUI: {

  1181.                 const uint64_t winId = fShmNonRtClientControl.readULong();

  1182.                 uint64_t resp = 0;

  1183. 

  1184.                 if (plugin->isEnabled())

  1185.                     resp = reinterpret_cast<uint64_t>(plugin->embedCustomUI(reinterpret_cast<void*>(winId)));

  1186. 

  1187.                 if (resp == 0)

  1188.                     resp = 1;

  1189. 

  1190.                 const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1191. 

  1192.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerRespEmbedUI);

  1193.                 fShmNonRtServerControl.writeULong(reinterpret_cast<uint64_t>(resp));

  1194.                 fShmNonRtServerControl.commitWrite();

  1195.                 break;

  1196.             }

  1197. 

  1198.             case kPluginBridgeNonRtClientUiParameterChange: {

  1199.                 const uint32_t index = fShmNonRtClientControl.readUInt();

  1200.                 const float    value = fShmNonRtClientControl.readFloat();

  1201. 

  1202.                 if (plugin->isEnabled())

  1203.                     plugin->uiParameterChange(index, value);

  1204.                 break;

  1205.             }

  1206. 

  1207.             case kPluginBridgeNonRtClientUiProgramChange: {

  1208.                 const uint32_t index(fShmNonRtClientControl.readUInt());

  1209. 

  1210.                 if (plugin->isEnabled())

  1211.                     plugin->uiProgramChange(index);

  1212.                 break;

  1213.             }

  1214. 

  1215.             case kPluginBridgeNonRtClientUiMidiProgramChange: {

  1216.                 const uint32_t index(fShmNonRtClientControl.readUInt());

  1217. 

  1218.                 if (plugin->isEnabled())

  1219.                     plugin->uiMidiProgramChange(index);

  1220.                 break;

  1221.             }

  1222. 

  1223.             case kPluginBridgeNonRtClientUiNoteOn: {

  1224.                 const uint8_t chnl(fShmNonRtClientControl.readByte());

  1225.                 const uint8_t note(fShmNonRtClientControl.readByte());

  1226.                 const uint8_t velo(fShmNonRtClientControl.readByte());

  1227. 

  1228.                 if (plugin->isEnabled())

  1229.                     plugin->uiNoteOn(chnl, note, velo);

  1230.                 break;

  1231.             }

  1232. 

  1233.             case kPluginBridgeNonRtClientUiNoteOff: {

  1234.                 const uint8_t chnl(fShmNonRtClientControl.readByte());

  1235.                 const uint8_t note(fShmNonRtClientControl.readByte());

  1236. 

  1237.                 if (plugin->isEnabled())

  1238.                     plugin->uiNoteOff(chnl, note);

  1239.                 break;

  1240.             }

  1241. 

  1242.             case kPluginBridgeNonRtClientQuit:

  1243.                 fClosingDown = true;

  1244.                 signalThreadShouldExit();

  1245.                 callback(true, true, ENGINE_CALLBACK_QUIT, 0, 0, 0, 0, 0.0f, nullptr);

  1246.                 break;

  1247.             }

  1248.         }

  1249.     }

  1250. 

  1251.     // -------------------------------------------------------------------

  1252. 

  1253. protected:

  1254.     void run() override

  1255.     {

  1256. #ifdef __SSE2_MATH__

  1257.         // Set FTZ and DAZ flags

  1258.         _mm_setcsr(_mm_getcsr() | 0x8040);

  1259. #endif

  1260. 

  1261.         bool quitReceived = false;

  1262. 

  1263.         for (; ! shouldThreadExit();)

  1264.         {

  1265.             const BridgeRtClientControl::WaitHelper helper(fShmRtClientControl);

  1266. 

  1267.             if (! helper.ok)

  1268.                 continue;

  1269. 

  1270.             for (; fShmRtClientControl.isDataAvailableForReading();)

  1271.             {

  1272.                 const PluginBridgeRtClientOpcode opcode(fShmRtClientControl.readOpcode());

  1273.                 const CarlaPluginPtr plugin = pData->plugins[0].plugin;

  1274. 

  1275. #ifdef DEBUG

  1276.                 if (opcode != kPluginBridgeRtClientProcess && opcode != kPluginBridgeRtClientMidiEvent) {

  1277.                     carla_debug("CarlaEngineBridgeRtThread::run() - got opcode: %s", PluginBridgeRtClientOpcode2str(opcode));

  1278.                 }

  1279. #endif

  1280. 

  1281.                 switch (opcode)

  1282.                 {

  1283.                 case kPluginBridgeRtClientNull:

  1284.                     break;

  1285. 

  1286.                 case kPluginBridgeRtClientSetAudioPool: {

  1287.                     if (fShmAudioPool.data != nullptr)

  1288.                     {

  1289.                         jackbridge_shm_unmap(fShmAudioPool.shm, fShmAudioPool.data);

  1290.                         fShmAudioPool.data = nullptr;

  1291.                     }

  1292.                     const uint64_t poolSize(fShmRtClientControl.readULong());

  1293.                     CARLA_SAFE_ASSERT_BREAK(poolSize > 0);

  1294.                     fShmAudioPool.data = (float*)jackbridge_shm_map(fShmAudioPool.shm, static_cast<size_t>(poolSize));

  1295.                     break;

  1296.                 }

  1297. 

  1298.                 case kPluginBridgeRtClientSetBufferSize: {

  1299.                     const uint32_t bufferSize(fShmRtClientControl.readUInt());

  1300.                     pData->bufferSize = bufferSize;

  1301.                     bufferSizeChanged(bufferSize);

  1302.                     break;

  1303.                 }

  1304. 

  1305.                 case kPluginBridgeRtClientSetSampleRate: {

  1306.                     const double sampleRate(fShmRtClientControl.readDouble());

  1307.                     pData->sampleRate = sampleRate;

  1308.                     sampleRateChanged(sampleRate);

  1309.                     break;

  1310.                 }

  1311. 

  1312.                 case kPluginBridgeRtClientSetOnline:

  1313.                     fIsOffline = fShmRtClientControl.readBool();

  1314.                     offlineModeChanged(fIsOffline);

  1315.                     break;

  1316. 

  1317.                 // NOTE this is never used

  1318.                 case kPluginBridgeRtClientControlEventParameter: {

  1319.                     const uint32_t time(fShmRtClientControl.readUInt());

  1320.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1321.                     const uint16_t param(fShmRtClientControl.readUShort());

  1322.                     const float    value(fShmRtClientControl.readFloat());

  1323. 

  1324.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1325.                     {

  1326.                         event->type                 = kEngineEventTypeControl;

  1327.                         event->time                 = time;

  1328.                         event->channel              = channel;

  1329.                         event->ctrl.type            = kEngineControlEventTypeParameter;

  1330.                         event->ctrl.param           = param;

  1331.                         event->ctrl.midiValue       = -1;

  1332.                         event->ctrl.normalizedValue = value;

  1333.                         event->ctrl.handled         = true;

  1334.                     }

  1335.                     break;

  1336.                 }

  1337. 

  1338.                 case kPluginBridgeRtClientControlEventMidiBank: {

  1339.                     const uint32_t time(fShmRtClientControl.readUInt());

  1340.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1341.                     const uint16_t index(fShmRtClientControl.readUShort());

  1342. 

  1343.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1344.                     {

  1345.                         event->type                 = kEngineEventTypeControl;

  1346.                         event->time                 = time;

  1347.                         event->channel              = channel;

  1348.                         event->ctrl.type            = kEngineControlEventTypeMidiBank;

  1349.                         event->ctrl.param           = index;

  1350.                         event->ctrl.midiValue       = -1;

  1351.                         event->ctrl.normalizedValue = 0.0f;

  1352.                         event->ctrl.handled         = true;

  1353.                     }

  1354.                     break;

  1355.                 }

  1356. 

  1357.                 case kPluginBridgeRtClientControlEventMidiProgram: {

  1358.                     const uint32_t time(fShmRtClientControl.readUInt());

  1359.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1360.                     const uint16_t index(fShmRtClientControl.readUShort());

  1361. 

  1362.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1363.                     {

  1364.                         event->type                 = kEngineEventTypeControl;

  1365.                         event->time                 = time;

  1366.                         event->channel              = channel;

  1367.                         event->ctrl.type            = kEngineControlEventTypeMidiProgram;

  1368.                         event->ctrl.param           = index;

  1369.                         event->ctrl.midiValue       = -1;

  1370.                         event->ctrl.normalizedValue = 0.0f;

  1371.                         event->ctrl.handled         = true;

  1372.                     }

  1373.                     break;

  1374.                 }

  1375. 

  1376.                 case kPluginBridgeRtClientControlEventAllSoundOff: {

  1377.                     const uint32_t time(fShmRtClientControl.readUInt());

  1378.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1379. 

  1380.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1381.                     {

  1382.                         event->type                 = kEngineEventTypeControl;

  1383.                         event->time                 = time;

  1384.                         event->channel              = channel;

  1385.                         event->ctrl.type            = kEngineControlEventTypeAllSoundOff;

  1386.                         event->ctrl.param           = 0;

  1387.                         event->ctrl.midiValue       = -1;

  1388.                         event->ctrl.normalizedValue = 0.0f;

  1389.                         event->ctrl.handled         = true;

  1390.                     }

  1391.                 }   break;

  1392. 

  1393.                 case kPluginBridgeRtClientControlEventAllNotesOff: {

  1394.                     const uint32_t time(fShmRtClientControl.readUInt());

  1395.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1396. 

  1397.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1398.                     {

  1399.                         event->type                 = kEngineEventTypeControl;

  1400.                         event->time                 = time;

  1401.                         event->channel              = channel;

  1402.                         event->ctrl.type            = kEngineControlEventTypeAllNotesOff;

  1403.                         event->ctrl.param           = 0;

  1404.                         event->ctrl.midiValue       = -1;

  1405.                         event->ctrl.normalizedValue = 0.0f;

  1406.                         event->ctrl.handled         = true;

  1407.                     }

  1408.                 }   break;

  1409. 

  1410.                 case kPluginBridgeRtClientMidiEvent: {

  1411.                     const uint32_t time(fShmRtClientControl.readUInt());

  1412.                     const uint8_t  port(fShmRtClientControl.readByte());

  1413.                     const uint8_t  size(fShmRtClientControl.readByte());

  1414.                     CARLA_SAFE_ASSERT_BREAK(size > 0);

  1415. 

  1416.                     // FIXME variable-size stack

  1417.                     uint8_t data[size];

  1418. 

  1419.                     for (uint8_t i=0; i<size; ++i)

  1420.                         data[i] = fShmRtClientControl.readByte();

  1421. 

  1422.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1423.                     {

  1424.                         event->type    = kEngineEventTypeMidi;

  1425.                         event->time    = time;

  1426.                         event->channel = MIDI_GET_CHANNEL_FROM_DATA(data);

  1427. 

  1428.                         event->midi.port = port;

  1429.                         event->midi.size = size;

  1430. 

  1431.                         if (size > EngineMidiEvent::kDataSize)

  1432.                         {

  1433.                             event->midi.dataExt = data;

  1434.                             std::memset(event->midi.data, 0, sizeof(uint8_t)*EngineMidiEvent::kDataSize);

  1435.                         }

  1436.                         else

  1437.                         {

  1438.                             event->midi.data[0] = MIDI_GET_STATUS_FROM_DATA(data);

  1439. 

  1440.                             uint8_t i=1;

  1441.                             for (; i < size; ++i)

  1442.                                 event->midi.data[i] = data[i];

  1443.                             for (; i < EngineMidiEvent::kDataSize; ++i)

  1444.                                 event->midi.data[i] = 0;

  1445. 

  1446.                             event->midi.dataExt = nullptr;

  1447.                         }

  1448.                     }

  1449.                     break;

  1450.                 }

  1451. 

  1452.                 case kPluginBridgeRtClientProcess: {

  1453.                     const uint32_t frames(fShmRtClientControl.readUInt());

  1454. 

  1455.                     CARLA_SAFE_ASSERT_BREAK(fShmAudioPool.data != nullptr);

  1456. 

  1457.                     if (plugin.get() != nullptr && plugin->isEnabled() && plugin->tryLock(fIsOffline))

  1458.                     {

  1459.                         const BridgeTimeInfo& bridgeTimeInfo(fShmRtClientControl.data->timeInfo);

  1460. 

  1461.                         const uint32_t audioInCount(plugin->getAudioInCount());

  1462.                         const uint32_t audioOutCount(plugin->getAudioOutCount());

  1463.                         const uint32_t cvInCount(plugin->getCVInCount());

  1464.                         const uint32_t cvOutCount(plugin->getCVOutCount());

  1465. 

  1466.                         const float* audioIn[audioInCount];

  1467.                         /* */ float* audioOut[audioOutCount];

  1468.                         const float* cvIn[cvInCount];

  1469.                         /* */ float* cvOut[cvOutCount];

  1470. 

  1471.                         float* fdata = fShmAudioPool.data;

  1472. 

  1473.                         for (uint32_t i=0; i < audioInCount; ++i, fdata += pData->bufferSize)

  1474.                             audioIn[i] = fdata;

  1475.                         for (uint32_t i=0; i < audioOutCount; ++i, fdata += pData->bufferSize)

  1476.                             audioOut[i] = fdata;

  1477. 

  1478.                         for (uint32_t i=0; i < cvInCount; ++i, fdata += pData->bufferSize)

  1479.                             cvIn[i] = fdata;

  1480.                         for (uint32_t i=0; i < cvOutCount; ++i, fdata += pData->bufferSize)

  1481.                             cvOut[i] = fdata;

  1482. 

  1483.                         EngineTimeInfo& timeInfo(pData->timeInfo);

  1484. 

  1485.                         timeInfo.playing   = bridgeTimeInfo.playing;

  1486.                         timeInfo.frame     = bridgeTimeInfo.frame;

  1487.                         timeInfo.usecs     = bridgeTimeInfo.usecs;

  1488.                         timeInfo.bbt.valid = (bridgeTimeInfo.validFlags & kPluginBridgeTimeInfoValidBBT) != 0;

  1489. 

  1490.                         if (timeInfo.bbt.valid)

  1491.                         {

  1492.                             timeInfo.bbt.bar  = bridgeTimeInfo.bar;

  1493.                             timeInfo.bbt.beat = bridgeTimeInfo.beat;

  1494.                             timeInfo.bbt.tick = bridgeTimeInfo.tick;

  1495. 

  1496.                             timeInfo.bbt.beatsPerBar = bridgeTimeInfo.beatsPerBar;

  1497.                             timeInfo.bbt.beatType    = bridgeTimeInfo.beatType;

  1498. 

  1499.                             timeInfo.bbt.ticksPerBeat   = bridgeTimeInfo.ticksPerBeat;

  1500.                             timeInfo.bbt.beatsPerMinute = bridgeTimeInfo.beatsPerMinute;

  1501.                             timeInfo.bbt.barStartTick   = bridgeTimeInfo.barStartTick;

  1502.                         }

  1503. 

  1504.                         plugin->initBuffers();

  1505.                         plugin->process(audioIn, audioOut, cvIn, cvOut, frames);

  1506.                         plugin->unlock();

  1507.                     }

  1508. 

  1509.                     uint8_t* midiData(fShmRtClientControl.data->midiOut);

  1510.                     carla_zeroBytes(midiData, kBridgeBaseMidiOutHeaderSize);

  1511.                     std::size_t curMidiDataPos = 0;

  1512. 

  1513.                     if (pData->events.in[0].type != kEngineEventTypeNull)

  1514.                         carla_zeroStructs(pData->events.in, kMaxEngineEventInternalCount);

  1515. 

  1516.                     if (pData->events.out[0].type != kEngineEventTypeNull)

  1517.                     {

  1518.                         for (ushort i=0; i < kMaxEngineEventInternalCount; ++i)

  1519.                         {

  1520.                             const EngineEvent& event(pData->events.out[i]);

  1521. 

  1522.                             if (event.type == kEngineEventTypeNull)

  1523.                                 break;

  1524. 

  1525.                             if (event.type == kEngineEventTypeControl)

  1526.                             {

  1527.                                 uint8_t data[3];

  1528.                                 const uint8_t size = event.ctrl.convertToMidiData(event.channel, data);

  1529.                                 CARLA_SAFE_ASSERT_CONTINUE(size > 0 && size <= 3);

  1530. 

  1531.                                 if (curMidiDataPos + kBridgeBaseMidiOutHeaderSize + size >= kBridgeRtClientDataMidiOutSize)

  1532.                                     break;

  1533. 

  1534.                                 // set time

  1535.                                 *(uint32_t*)midiData = event.time;

  1536.                                 midiData = midiData + 4;

  1537.                                 curMidiDataPos += 4;

  1538. 

  1539.                                 // set port

  1540.                                 *midiData++ = 0;

  1541.                                 ++curMidiDataPos;

  1542. 

  1543.                                 // set size

  1544.                                 *midiData++ = size;

  1545.                                 ++curMidiDataPos;

  1546. 

  1547.                                 // set data

  1548.                                 for (uint8_t j=0; j<size; ++j)

  1549.                                     *midiData++ = data[j];

  1550. 

  1551.                                 curMidiDataPos += size;

  1552.                             }

  1553.                             else if (event.type == kEngineEventTypeMidi)

  1554.                             {

  1555.                                 const EngineMidiEvent& _midiEvent(event.midi);

  1556. 

  1557.                                 if (curMidiDataPos + kBridgeBaseMidiOutHeaderSize + _midiEvent.size >= kBridgeRtClientDataMidiOutSize)

  1558.                                     break;

  1559. 

  1560.                                 const uint8_t* const _midiData(_midiEvent.dataExt != nullptr ? _midiEvent.dataExt : _midiEvent.data);

  1561. 

  1562.                                 // set time

  1563.                                 *(uint32_t*)midiData = event.time;

  1564.                                 midiData += 4;

  1565.                                 curMidiDataPos += 4;

  1566. 

  1567.                                 // set port

  1568.                                 *midiData++ = _midiEvent.port;

  1569.                                 ++curMidiDataPos;

  1570. 

  1571.                                 // set size

  1572.                                 *midiData++ = _midiEvent.size;

  1573.                                 ++curMidiDataPos;

  1574. 

  1575.                                 // set data

  1576.                                 *midiData++ = uint8_t(_midiData[0] | (event.channel & MIDI_CHANNEL_BIT));

  1577. 

  1578.                                 for (uint8_t j=1; j<_midiEvent.size; ++j)

  1579.                                     *midiData++ = _midiData[j];

  1580. 

  1581.                                 curMidiDataPos += _midiEvent.size;

  1582.                             }

  1583.                         }

  1584. 

  1585.                         if (curMidiDataPos != 0 &&

  1586.                             curMidiDataPos + kBridgeBaseMidiOutHeaderSize < kBridgeRtClientDataMidiOutSize)

  1587.                             carla_zeroBytes(midiData, kBridgeBaseMidiOutHeaderSize);

  1588. 

  1589.                         carla_zeroStructs(pData->events.out, kMaxEngineEventInternalCount);

  1590.                     }

  1591. 

  1592.                 }   break;

  1593. 

  1594.                 case kPluginBridgeRtClientQuit: {

  1595.                     quitReceived = true;

  1596.                     fClosingDown = true;

  1597.                     signalThreadShouldExit();

  1598.                 }   break;

  1599.                 }

  1600.             }

  1601.         }

  1602. 

  1603.         callback(true, true, ENGINE_CALLBACK_ENGINE_STOPPED, 0, 0, 0, 0, 0.0f, nullptr);

  1604. 

  1605.         if (! quitReceived)

  1606.         {

  1607.             const char* const message("Plugin bridge error, process thread has stopped");

  1608.             const std::size_t messageSize(std::strlen(message));

  1609. 

  1610.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1611.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerError);

  1612.             fShmNonRtServerControl.writeUInt(messageSize);

  1613.             fShmNonRtServerControl.writeCustomData(message, messageSize);

  1614.             fShmNonRtServerControl.commitWrite();

  1615.         }

  1616.     }

  1617. 

  1618.     // called from process thread above

  1619.     EngineEvent* getNextFreeInputEvent() const noexcept

  1620.     {

  1621.         for (ushort i=0; i < kMaxEngineEventInternalCount; ++i)

  1622.         {

  1623.             EngineEvent* const event(&pData->events.in[i]);

  1624. 

  1625.             if (event->type == kEngineEventTypeNull)

  1626.                 return event;

  1627.         }

  1628.         return nullptr;

  1629.     }

  1630. 

  1631.     void latencyChanged(const uint32_t samples) noexcept override

  1632.     {

  1633.         const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1634. 

  1635.         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetLatency);

  1636.         fShmNonRtServerControl.writeUInt(samples);

  1637.         fShmNonRtServerControl.commitWrite();

  1638.     }

  1639. 

  1640.     // -------------------------------------------------------------------

  1641. 

  1642. private:

  1643.     BridgeAudioPool          fShmAudioPool;

  1644.     BridgeRtClientControl    fShmRtClientControl;

  1645.     BridgeNonRtClientControl fShmNonRtClientControl;

  1646.     BridgeNonRtServerControl fShmNonRtServerControl;

  1647. 

  1648.     CarlaString fBaseNameAudioPool;

  1649.     CarlaString fBaseNameRtClientControl;

  1650.     CarlaString fBaseNameNonRtClientControl;

  1651.     CarlaString fBaseNameNonRtServerControl;

  1652. 

  1653.     bool fClosingDown;

  1654.     bool fIsOffline;

  1655.     bool fFirstIdle;

  1656.     int64_t fLastPingTime;

  1657. 

  1658.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineBridge)

  1659. };

  1660. 

  1661. // -----------------------------------------------------------------------

  1662. 

  1663. namespace EngineInit {

  1664. 

  1665. CarlaEngine* newBridge(const char* const audioPoolBaseName,

  1666.                        const char* const rtClientBaseName,

  1667.                        const char* const nonRtClientBaseName,

  1668.                        const char* const nonRtServerBaseName)

  1669. {

  1670.     return new CarlaEngineBridge(audioPoolBaseName, rtClientBaseName, nonRtClientBaseName, nonRtServerBaseName);

  1671. }

  1672. 

  1673. }

  1674. 

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

  1676. 

  1677. CARLA_BACKEND_END_NAMESPACE

  1678. 

  1679. // -----------------------------------------------------------------------

  1680. 

  1681. #include "CarlaBridgeUtils.cpp"

  1682. 

  1683. // -----------------------------------------------------------------------