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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) 2011-2018 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("CarlaEngineBridge: 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 = std::min(pData->options.maxParameters, 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 (fClosingDown)

  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.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  640.             if (CarlaPlugin* const plugin = pData->plugins[0].plugin)

  641.             {

  642.                 if (const uint32_t count = std::min(pData->options.maxParameters, plugin->getParameterCount()))

  643.                 {

  644.                     const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  645. 

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

  647.                     {

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

  649. 

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

  651.                             continue;

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

  653.                             continue;

  654. 

  655.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterValue);

  656.                         fShmNonRtServerControl.writeUInt(i);

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

  658.                         fShmNonRtServerControl.commitWrite();

  659. 

  660.                         fShmNonRtServerControl.waitIfDataIsReachingLimit();

  661.                     }

  662.                 }

  663.             }

  664.             break;

  665. 

  666.         default:

  667.             break;

  668.         }

  669.     }

  670. 

  671.     // -------------------------------------------------------------------

  672. 

  673.     void clear() noexcept

  674.     {

  675.         fShmAudioPool.clear();

  676.         fShmRtClientControl.clear();

  677.         fShmNonRtClientControl.clear();

  678.         fShmNonRtServerControl.clear();

  679.     }

  680. 

  681.     void handleNonRtData()

  682.     {

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

  684.         CARLA_SAFE_ASSERT_RETURN(plugin != nullptr,);

  685. 

  686.         for (; fShmNonRtClientControl.isDataAvailableForReading();)

  687.         {

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

  689. 

  690. #ifdef DEBUG

  691.             if (opcode != kPluginBridgeNonRtClientPing) {

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

  693.             }

  694. #endif

  695. 

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

  697.                 fLastPingTime = Time::currentTimeMillis();

  698. 

  699.             switch (opcode)

  700.             {

  701.             case kPluginBridgeNonRtClientNull:

  702.                 break;

  703. 

  704.             case kPluginBridgeNonRtClientVersion: {

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

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

  707.             }   break;

  708. 

  709.             case kPluginBridgeNonRtClientPing: {

  710.                 const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  711. 

  712.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPong);

  713.                 fShmNonRtServerControl.commitWrite();

  714.             }   break;

  715. 

  716.             case kPluginBridgeNonRtClientPingOnOff: {

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

  718. 

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

  720.             }   break;

  721. 

  722.             case kPluginBridgeNonRtClientActivate:

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

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

  725.                 break;

  726. 

  727.             case kPluginBridgeNonRtClientDeactivate:

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

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

  730.                 break;

  731. 

  732.             case kPluginBridgeNonRtClientInitialSetup:

  733.                 // should never happen!!

  734.                 fShmNonRtServerControl.readUInt();

  735.                 fShmNonRtServerControl.readDouble();

  736.                 break;

  737. 

  738.             case kPluginBridgeNonRtClientSetParameterValue: {

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

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

  741. 

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

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

  744.                 break;

  745.             }

  746. 

  747.             case kPluginBridgeNonRtClientSetParameterMidiChannel: {

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

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

  750. 

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

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

  753.                 break;

  754.             }

  755. 

  756.             case kPluginBridgeNonRtClientSetParameterMidiCC: {

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

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

  759. 

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

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

  762.                 break;

  763.             }

  764. 

  765.             case kPluginBridgeNonRtClientSetProgram: {

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

  767. 

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

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

  770.                 break;

  771.             }

  772. 

  773.             case kPluginBridgeNonRtClientSetMidiProgram: {

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

  775. 

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

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

  778.                 break;

  779.             }

  780. 

  781.             case kPluginBridgeNonRtClientSetCustomData: {

  782.                 // type

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

  784.                 char typeStr[typeSize+1];

  785.                 carla_zeroChars(typeStr, typeSize+1);

  786.                 fShmNonRtClientControl.readCustomData(typeStr, typeSize);

  787. 

  788.                 // key

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

  790.                 char keyStr[keySize+1];

  791.                 carla_zeroChars(keyStr, keySize+1);

  792.                 fShmNonRtClientControl.readCustomData(keyStr, keySize);

  793. 

  794.                 // value

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

  796.                 char valueStr[valueSize+1];

  797.                 carla_zeroChars(valueStr, valueSize+1);

  798. 

  799.                 if (valueSize > 0)

  800.                     fShmNonRtClientControl.readCustomData(valueStr, valueSize);

  801. 

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

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

  804.                 break;

  805.             }

  806. 

  807.             case kPluginBridgeNonRtClientSetChunkDataFile: {

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

  809.                 CARLA_SAFE_ASSERT_BREAK(size > 0);

  810. 

  811.                 char chunkFilePathTry[size+1];

  812.                 carla_zeroChars(chunkFilePathTry, size+1);

  813.                 fShmNonRtClientControl.readCustomData(chunkFilePathTry, size);

  814. 

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

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

  817. 

  818.                 String chunkFilePath(chunkFilePathTry);

  819. 

  820. #ifdef CARLA_OS_WIN

  821.                 // check if running under Wine

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

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

  824. #endif

  825. 

  826.                 File chunkFile(chunkFilePath);

  827.                 CARLA_SAFE_ASSERT_BREAK(chunkFile.existsAsFile());

  828. 

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

  830.                 chunkFile.deleteFile();

  831.                 CARLA_SAFE_ASSERT_BREAK(chunkDataBase64.isNotEmpty());

  832. 

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

  834. 

  835. #ifdef CARLA_PROPER_CPP11_SUPPORT

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

  837. #else

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

  839. #endif

  840.                 break;

  841.             }

  842. 

  843.             case kPluginBridgeNonRtClientSetCtrlChannel: {

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

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

  846. 

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

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

  849.                 break;

  850.             }

  851. 

  852.             case kPluginBridgeNonRtClientSetOption: {

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

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

  855. 

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

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

  858.                 break;

  859.             }

  860. 

  861.             case kPluginBridgeNonRtClientGetParameterText: {

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

  863. 

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

  865.                 {

  866.                     char strBuf[STR_MAX];

  867.                     plugin->getParameterText(static_cast<uint32_t>(index), strBuf);

  868.                     const uint32_t strBufLen = static_cast<uint32_t>(std::strlen(strBuf));

  869. 

  870.                     const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  871. 

  872.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetParameterText);

  873. 

  874.                     fShmNonRtServerControl.writeInt(index);

  875.                     fShmNonRtServerControl.writeUInt(strBufLen);

  876.                     fShmNonRtServerControl.writeCustomData(strBuf, strBufLen);

  877.                     fShmNonRtServerControl.commitWrite();

  878. 

  879.                     fShmNonRtServerControl.waitIfDataIsReachingLimit();

  880.                 }

  881. 

  882.                 break;

  883.             }

  884. 

  885.             case kPluginBridgeNonRtClientPrepareForSave: {

  886.                 if (plugin == nullptr || ! plugin->isEnabled())

  887.                     break;

  888. 

  889.                 plugin->prepareForSave();

  890. 

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

  892.                 {

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

  894. 

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

  896.                         continue;

  897. 

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

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

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

  901. 

  902.                     {

  903.                         const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  904. 

  905.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetCustomData);

  906. 

  907.                         fShmNonRtServerControl.writeUInt(typeLen);

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

  909. 

  910.                         fShmNonRtServerControl.writeUInt(keyLen);

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

  912. 

  913.                         fShmNonRtServerControl.writeUInt(valueLen);

  914. 

  915.                         if (valueLen > 0)

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

  917. 

  918.                         fShmNonRtServerControl.commitWrite();

  919.                         fShmNonRtServerControl.waitIfDataIsReachingLimit();

  920.                     }

  921.                 }

  922. 

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

  924.                 {

  925.                     void* data = nullptr;

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

  927.                     {

  928.                         CARLA_SAFE_ASSERT_BREAK(data != nullptr);

  929. 

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

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

  932. 

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

  934. 

  935.                         filePath += CARLA_OS_SEP_STR ".CarlaChunk_";

  936.                         filePath += fShmAudioPool.getFilenameSuffix();

  937. 

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

  939.                         {

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

  941. 

  942.                             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  943. 

  944.                             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetChunkDataFile);

  945.                             fShmNonRtServerControl.writeUInt(ulength);

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

  947.                             fShmNonRtServerControl.commitWrite();

  948.                         }

  949.                     }

  950.                 }

  951. 

  952.                 {

  953.                     const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  954. 

  955.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSaved);

  956.                     fShmNonRtServerControl.commitWrite();

  957.                 }

  958.                 break;

  959.             }

  960. 

  961.             case kPluginBridgeNonRtClientRestoreLV2State:

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

  963.                     plugin->restoreLV2State();

  964.                 break;

  965. 

  966.             case kPluginBridgeNonRtClientShowUI:

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

  968.                     plugin->showCustomUI(true);

  969.                 break;

  970. 

  971.             case kPluginBridgeNonRtClientHideUI:

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

  973.                     plugin->showCustomUI(false);

  974.                 break;

  975. 

  976.             case kPluginBridgeNonRtClientUiParameterChange: {

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

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

  979. 

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

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

  982.                 break;

  983.             }

  984. 

  985.             case kPluginBridgeNonRtClientUiProgramChange: {

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

  987. 

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

  989.                     plugin->uiProgramChange(index);

  990.                 break;

  991.             }

  992. 

  993.             case kPluginBridgeNonRtClientUiMidiProgramChange: {

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

  995. 

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

  997.                     plugin->uiMidiProgramChange(index);

  998.                 break;

  999.             }

  1000. 

  1001.             case kPluginBridgeNonRtClientUiNoteOn: {

  1002.                 const uint8_t chnl(fShmNonRtClientControl.readByte());

  1003.                 const uint8_t note(fShmNonRtClientControl.readByte());

  1004.                 const uint8_t velo(fShmNonRtClientControl.readByte());

  1005. 

  1006.                 if (plugin != nullptr && plugin->isEnabled())

  1007.                     plugin->uiNoteOn(chnl, note, velo);

  1008.                 break;

  1009.             }

  1010. 

  1011.             case kPluginBridgeNonRtClientUiNoteOff: {

  1012.                 const uint8_t chnl(fShmNonRtClientControl.readByte());

  1013.                 const uint8_t note(fShmNonRtClientControl.readByte());

  1014. 

  1015.                 if (plugin != nullptr && plugin->isEnabled())

  1016.                     plugin->uiNoteOff(chnl, note);

  1017.                 break;

  1018.             }

  1019. 

  1020.             case kPluginBridgeNonRtClientQuit:

  1021.                 fClosingDown = true;

  1022.                 signalThreadShouldExit();

  1023.                 callback(ENGINE_CALLBACK_QUIT, 0, 0, 0, 0.0f, nullptr);

  1024.                 break;

  1025.             }

  1026.         }

  1027.     }

  1028. 

  1029.     // -------------------------------------------------------------------

  1030. 

  1031. protected:

  1032.     void run() override

  1033.     {

  1034. #ifdef __SSE2_MATH__

  1035.         // Set FTZ and DAZ flags

  1036.         _mm_setcsr(_mm_getcsr() | 0x8040);

  1037. #endif

  1038. 

  1039.         bool quitReceived = false;

  1040. 

  1041.         for (; ! shouldThreadExit();)

  1042.         {

  1043.             const BridgeRtClientControl::WaitHelper helper(fShmRtClientControl);

  1044. 

  1045.             if (! helper.ok)

  1046.                 continue;

  1047. 

  1048.             for (; fShmRtClientControl.isDataAvailableForReading();)

  1049.             {

  1050.                 const PluginBridgeRtClientOpcode opcode(fShmRtClientControl.readOpcode());

  1051.                 CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1052. 

  1053. #ifdef DEBUG

  1054.                 if (opcode != kPluginBridgeRtClientProcess && opcode != kPluginBridgeRtClientMidiEvent) {

  1055.                     carla_debug("CarlaEngineBridgeRtThread::run() - got opcode: %s", PluginBridgeRtClientOpcode2str(opcode));

  1056.                 }

  1057. #endif

  1058. 

  1059.                 switch (opcode)

  1060.                 {

  1061.                 case kPluginBridgeRtClientNull:

  1062.                     break;

  1063. 

  1064.                 case kPluginBridgeRtClientSetAudioPool: {

  1065.                     if (fShmAudioPool.data != nullptr)

  1066.                     {

  1067.                         jackbridge_shm_unmap(fShmAudioPool.shm, fShmAudioPool.data);

  1068.                         fShmAudioPool.data = nullptr;

  1069.                     }

  1070.                     const uint64_t poolSize(fShmRtClientControl.readULong());

  1071.                     CARLA_SAFE_ASSERT_BREAK(poolSize > 0);

  1072.                     fShmAudioPool.data = (float*)jackbridge_shm_map(fShmAudioPool.shm, static_cast<size_t>(poolSize));

  1073.                     break;

  1074.                 }

  1075. 

  1076.                 case kPluginBridgeRtClientSetBufferSize: {

  1077.                     const uint32_t bufferSize(fShmRtClientControl.readUInt());

  1078.                     pData->bufferSize = bufferSize;

  1079.                     bufferSizeChanged(bufferSize);

  1080.                     break;

  1081.                 }

  1082. 

  1083.                 case kPluginBridgeRtClientSetSampleRate: {

  1084.                     const double sampleRate(fShmRtClientControl.readDouble());

  1085.                     pData->sampleRate = sampleRate;

  1086.                     sampleRateChanged(sampleRate);

  1087.                     break;

  1088.                 }

  1089. 

  1090.                 case kPluginBridgeRtClientSetOnline:

  1091.                     fIsOffline = fShmRtClientControl.readBool();

  1092.                     offlineModeChanged(fIsOffline);

  1093.                     break;

  1094. 

  1095.                 case kPluginBridgeRtClientControlEventParameter: {

  1096.                     const uint32_t time(fShmRtClientControl.readUInt());

  1097.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1098.                     const uint16_t param(fShmRtClientControl.readUShort());

  1099.                     const float    value(fShmRtClientControl.readFloat());

  1100. 

  1101.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1102.                     {

  1103.                         event->type    = kEngineEventTypeControl;

  1104.                         event->time    = time;

  1105.                         event->channel = channel;

  1106.                         event->ctrl.type  = kEngineControlEventTypeParameter;

  1107.                         event->ctrl.param = param;

  1108.                         event->ctrl.value = value;

  1109.                     }

  1110.                     break;

  1111.                 }

  1112. 

  1113.                 case kPluginBridgeRtClientControlEventMidiBank: {

  1114.                     const uint32_t time(fShmRtClientControl.readUInt());

  1115.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1116.                     const uint16_t index(fShmRtClientControl.readUShort());

  1117. 

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

  1119.                     {

  1120.                         event->type    = kEngineEventTypeControl;

  1121.                         event->time    = time;

  1122.                         event->channel = channel;

  1123.                         event->ctrl.type  = kEngineControlEventTypeMidiBank;

  1124.                         event->ctrl.param = index;

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

  1126.                     }

  1127.                     break;

  1128.                 }

  1129. 

  1130.                 case kPluginBridgeRtClientControlEventMidiProgram: {

  1131.                     const uint32_t time(fShmRtClientControl.readUInt());

  1132.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1133.                     const uint16_t index(fShmRtClientControl.readUShort());

  1134. 

  1135.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1136.                     {

  1137.                         event->type    = kEngineEventTypeControl;

  1138.                         event->time    = time;

  1139.                         event->channel = channel;

  1140.                         event->ctrl.type  = kEngineControlEventTypeMidiProgram;

  1141.                         event->ctrl.param = index;

  1142.                         event->ctrl.value = 0.0f;

  1143.                     }

  1144.                     break;

  1145.                 }

  1146. 

  1147.                 case kPluginBridgeRtClientControlEventAllSoundOff: {

  1148.                     const uint32_t time(fShmRtClientControl.readUInt());

  1149.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1150. 

  1151.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1152.                     {

  1153.                         event->type    = kEngineEventTypeControl;

  1154.                         event->time    = time;

  1155.                         event->channel = channel;

  1156.                         event->ctrl.type  = kEngineControlEventTypeAllSoundOff;

  1157.                         event->ctrl.param = 0;

  1158.                         event->ctrl.value = 0.0f;

  1159.                     }

  1160.                 }   break;

  1161. 

  1162.                 case kPluginBridgeRtClientControlEventAllNotesOff: {

  1163.                     const uint32_t time(fShmRtClientControl.readUInt());

  1164.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1165. 

  1166.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1167.                     {

  1168.                         event->type    = kEngineEventTypeControl;

  1169.                         event->time    = time;

  1170.                         event->channel = channel;

  1171.                         event->ctrl.type  = kEngineControlEventTypeAllNotesOff;

  1172.                         event->ctrl.param = 0;

  1173.                         event->ctrl.value = 0.0f;

  1174.                     }

  1175.                 }   break;

  1176. 

  1177.                 case kPluginBridgeRtClientMidiEvent: {

  1178.                     const uint32_t time(fShmRtClientControl.readUInt());

  1179.                     const uint8_t  port(fShmRtClientControl.readByte());

  1180.                     const uint8_t  size(fShmRtClientControl.readByte());

  1181.                     CARLA_SAFE_ASSERT_BREAK(size > 0);

  1182. 

  1183.                     // FIXME variable-size stack

  1184.                     uint8_t data[size];

  1185. 

  1186.                     for (uint8_t i=0; i<size; ++i)

  1187.                         data[i] = fShmRtClientControl.readByte();

  1188. 

  1189.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1190.                     {

  1191.                         event->type    = kEngineEventTypeMidi;

  1192.                         event->time    = time;

  1193.                         event->channel = MIDI_GET_CHANNEL_FROM_DATA(data);

  1194. 

  1195.                         event->midi.port = port;

  1196.                         event->midi.size = size;

  1197. 

  1198.                         if (size > EngineMidiEvent::kDataSize)

  1199.                         {

  1200.                             event->midi.dataExt = data;

  1201.                             std::memset(event->midi.data, 0, sizeof(uint8_t)*EngineMidiEvent::kDataSize);

  1202.                         }

  1203.                         else

  1204.                         {

  1205.                             event->midi.data[0] = MIDI_GET_STATUS_FROM_DATA(data);

  1206. 

  1207.                             uint8_t i=1;

  1208.                             for (; i < size; ++i)

  1209.                                 event->midi.data[i] = data[i];

  1210.                             for (; i < EngineMidiEvent::kDataSize; ++i)

  1211.                                 event->midi.data[i] = 0;

  1212. 

  1213.                             event->midi.dataExt = nullptr;

  1214.                         }

  1215.                     }

  1216.                     break;

  1217.                 }

  1218. 

  1219.                 case kPluginBridgeRtClientProcess: {

  1220.                     const uint32_t frames(fShmRtClientControl.readUInt());

  1221. 

  1222.                     CARLA_SAFE_ASSERT_BREAK(fShmAudioPool.data != nullptr);

  1223. 

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

  1225.                     {

  1226.                         const BridgeTimeInfo& bridgeTimeInfo(fShmRtClientControl.data->timeInfo);

  1227. 

  1228.                         const uint32_t audioInCount(plugin->getAudioInCount());

  1229.                         const uint32_t audioOutCount(plugin->getAudioOutCount());

  1230.                         const uint32_t cvInCount(plugin->getCVInCount());

  1231.                         const uint32_t cvOutCount(plugin->getCVOutCount());

  1232. 

  1233.                         const float* audioIn[audioInCount];

  1234.                         /* */ float* audioOut[audioOutCount];

  1235.                         const float* cvIn[cvInCount];

  1236.                         /* */ float* cvOut[cvOutCount];

  1237. 

  1238.                         float* fdata = fShmAudioPool.data;

  1239. 

  1240.                         for (uint32_t i=0; i < audioInCount; ++i, fdata += pData->bufferSize)

  1241.                             audioIn[i] = fdata;

  1242.                         for (uint32_t i=0; i < audioOutCount; ++i, fdata += pData->bufferSize)

  1243.                             audioOut[i] = fdata;

  1244. 

  1245.                         for (uint32_t i=0; i < cvInCount; ++i, fdata += pData->bufferSize)

  1246.                             cvIn[i] = fdata;

  1247.                         for (uint32_t i=0; i < cvOutCount; ++i, fdata += pData->bufferSize)

  1248.                             cvOut[i] = fdata;

  1249. 

  1250.                         EngineTimeInfo& timeInfo(pData->timeInfo);

  1251. 

  1252.                         timeInfo.playing   = bridgeTimeInfo.playing;

  1253.                         timeInfo.frame     = bridgeTimeInfo.frame;

  1254.                         timeInfo.usecs     = bridgeTimeInfo.usecs;

  1255.                         timeInfo.bbt.valid = (bridgeTimeInfo.validFlags & kPluginBridgeTimeInfoValidBBT) != 0;

  1256. 

  1257.                         if (timeInfo.bbt.valid)

  1258.                         {

  1259.                             timeInfo.bbt.bar  = bridgeTimeInfo.bar;

  1260.                             timeInfo.bbt.beat = bridgeTimeInfo.beat;

  1261.                             timeInfo.bbt.tick = bridgeTimeInfo.tick;

  1262. 

  1263.                             timeInfo.bbt.beatsPerBar = bridgeTimeInfo.beatsPerBar;

  1264.                             timeInfo.bbt.beatType    = bridgeTimeInfo.beatType;

  1265. 

  1266.                             timeInfo.bbt.ticksPerBeat   = bridgeTimeInfo.ticksPerBeat;

  1267.                             timeInfo.bbt.beatsPerMinute = bridgeTimeInfo.beatsPerMinute;

  1268.                             timeInfo.bbt.barStartTick   = bridgeTimeInfo.barStartTick;

  1269.                         }

  1270. 

  1271.                         plugin->initBuffers();

  1272.                         plugin->process(audioIn, audioOut, cvIn, cvOut, frames);

  1273.                         plugin->unlock();

  1274.                     }

  1275. 

  1276.                     uint8_t* midiData(fShmRtClientControl.data->midiOut);

  1277.                     carla_zeroBytes(midiData, kBridgeBaseMidiOutHeaderSize);

  1278.                     std::size_t curMidiDataPos = 0;

  1279. 

  1280.                     if (pData->events.in[0].type != kEngineEventTypeNull)

  1281.                         carla_zeroStructs(pData->events.in, kMaxEngineEventInternalCount);

  1282. 

  1283.                     if (pData->events.out[0].type != kEngineEventTypeNull)

  1284.                     {

  1285.                         for (ushort i=0; i < kMaxEngineEventInternalCount; ++i)

  1286.                         {

  1287.                             const EngineEvent& event(pData->events.out[i]);

  1288. 

  1289.                             if (event.type == kEngineEventTypeNull)

  1290.                                 break;

  1291. 

  1292.                             if (event.type == kEngineEventTypeControl)

  1293.                             {

  1294.                                 uint8_t data[3];

  1295.                                 const uint8_t size = event.ctrl.convertToMidiData(event.channel, data);

  1296.                                 CARLA_SAFE_ASSERT_CONTINUE(size > 0 && size <= 3);

  1297. 

  1298.                                 if (curMidiDataPos + kBridgeBaseMidiOutHeaderSize + size >= kBridgeRtClientDataMidiOutSize)

  1299.                                     break;

  1300. 

  1301.                                 // set time

  1302.                                 *(uint32_t*)midiData = event.time;

  1303.                                 midiData = midiData + 4;

  1304.                                 curMidiDataPos += 4;

  1305. 

  1306.                                 // set port

  1307.                                 *midiData++ = 0;

  1308.                                 ++curMidiDataPos;

  1309. 

  1310.                                 // set size

  1311.                                 *midiData++ = size;

  1312.                                 ++curMidiDataPos;

  1313. 

  1314.                                 // set data

  1315.                                 for (uint8_t j=0; j<size; ++j)

  1316.                                     *midiData++ = data[j];

  1317. 

  1318.                                 curMidiDataPos += size;

  1319.                             }

  1320.                             else if (event.type == kEngineEventTypeMidi)

  1321.                             {

  1322.                                 const EngineMidiEvent& _midiEvent(event.midi);

  1323. 

  1324.                                 if (curMidiDataPos + kBridgeBaseMidiOutHeaderSize + _midiEvent.size >= kBridgeRtClientDataMidiOutSize)

  1325.                                     break;

  1326. 

  1327.                                 const uint8_t* const _midiData(_midiEvent.dataExt != nullptr ? _midiEvent.dataExt : _midiEvent.data);

  1328. 

  1329.                                 // set time

  1330.                                 *(uint32_t*)midiData = event.time;

  1331.                                 midiData += 4;

  1332.                                 curMidiDataPos += 4;

  1333. 

  1334.                                 // set port

  1335.                                 *midiData++ = _midiEvent.port;

  1336.                                 ++curMidiDataPos;

  1337. 

  1338.                                 // set size

  1339.                                 *midiData++ = _midiEvent.size;

  1340.                                 ++curMidiDataPos;

  1341. 

  1342.                                 // set data

  1343.                                 *midiData++ = uint8_t(_midiData[0] | (event.channel & MIDI_CHANNEL_BIT));

  1344. 

  1345.                                 for (uint8_t j=1; j<_midiEvent.size; ++j)

  1346.                                     *midiData++ = _midiData[j];

  1347. 

  1348.                                 curMidiDataPos += _midiEvent.size;

  1349.                             }

  1350.                         }

  1351. 

  1352.                         if (curMidiDataPos != 0 &&

  1353.                             curMidiDataPos + kBridgeBaseMidiOutHeaderSize < kBridgeRtClientDataMidiOutSize)

  1354.                             carla_zeroBytes(midiData, kBridgeBaseMidiOutHeaderSize);

  1355. 

  1356.                         carla_zeroStructs(pData->events.out, kMaxEngineEventInternalCount);

  1357.                     }

  1358. 

  1359.                 }   break;

  1360. 

  1361.                 case kPluginBridgeRtClientQuit: {

  1362.                     quitReceived = true;

  1363.                     fClosingDown = true;

  1364.                     signalThreadShouldExit();

  1365.                 }   break;

  1366.                 }

  1367.             }

  1368.         }

  1369. 

  1370.         callback(ENGINE_CALLBACK_ENGINE_STOPPED, 0, 0, 0, 0.0f, nullptr);

  1371. 

  1372.         if (! quitReceived)

  1373.         {

  1374.             const char* const message("Plugin bridge error, process thread has stopped");

  1375.             const std::size_t messageSize(std::strlen(message));

  1376. 

  1377.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1378.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerError);

  1379.             fShmNonRtServerControl.writeUInt(messageSize);

  1380.             fShmNonRtServerControl.writeCustomData(message, messageSize);

  1381.             fShmNonRtServerControl.commitWrite();

  1382.         }

  1383.     }

  1384. 

  1385.     // called from process thread above

  1386.     EngineEvent* getNextFreeInputEvent() const noexcept

  1387.     {

  1388.         for (ushort i=0; i < kMaxEngineEventInternalCount; ++i)

  1389.         {

  1390.             EngineEvent* const event(&pData->events.in[i]);

  1391. 

  1392.             if (event->type == kEngineEventTypeNull)

  1393.                 return event;

  1394.         }

  1395.         return nullptr;

  1396.     }

  1397. 

  1398.     void latencyChanged(const uint32_t samples) noexcept override

  1399.     {

  1400.         const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1401. 

  1402.         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetLatency);

  1403.         fShmNonRtServerControl.writeUInt(samples);

  1404.         fShmNonRtServerControl.commitWrite();

  1405.     }

  1406. 

  1407.     // -------------------------------------------------------------------

  1408. 

  1409. private:

  1410.     BridgeAudioPool          fShmAudioPool;

  1411.     BridgeRtClientControl    fShmRtClientControl;

  1412.     BridgeNonRtClientControl fShmNonRtClientControl;

  1413.     BridgeNonRtServerControl fShmNonRtServerControl;

  1414. 

  1415.     CarlaString fBaseNameAudioPool;

  1416.     CarlaString fBaseNameRtClientControl;

  1417.     CarlaString fBaseNameNonRtClientControl;

  1418.     CarlaString fBaseNameNonRtServerControl;

  1419. 

  1420.     bool fClosingDown;

  1421.     bool fIsOffline;

  1422.     bool fFirstIdle;

  1423.     int64_t fLastPingTime;

  1424. 

  1425.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineBridge)

  1426. };

  1427. 

  1428. // -----------------------------------------------------------------------

  1429. 

  1430. CarlaEngine* CarlaEngine::newBridge(const char* const audioPoolBaseName, const char* const rtClientBaseName, const char* const nonRtClientBaseName, const char* const nonRtServerBaseName)

  1431. {

  1432.     return new CarlaEngineBridge(audioPoolBaseName, rtClientBaseName, nonRtClientBaseName, nonRtServerBaseName);

  1433. }

  1434. 

  1435. // -----------------------------------------------------------------------

  1436. 

  1437. CARLA_BACKEND_END_NAMESPACE

  1438. 

  1439. // -----------------------------------------------------------------------

  1440. 

  1441. #include "CarlaBridgeUtils.cpp"

  1442. 

  1443. // -----------------------------------------------------------------------