falkTX
/
Carla
mirror of https://github.com/falkTX/Carla
1
0
Fork 0
Code Releases 42 Activity
Audio plugin host https://kx.studio/carla
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
5151 Commits
16 Branches
14GB
Tree: b051899438
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from 'b051899438'
${ noResults }
Carla/source/backend/engine/CarlaEngineBridge.cpp

1478 lines
59KB
Raw Blame History 

  1. /*

  2.  * Carla Plugin Host

  3.  * Copyright (C) 2011-2019 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.     void touchPluginParameter(const uint id, const uint32_t parameterId, const bool touch) noexcept override

  260.     {

  261.         CARLA_SAFE_ASSERT_RETURN(id == 0,);

  262. 

  263.         const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  264.         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterTouch);

  265.         fShmNonRtServerControl.writeUInt(parameterId);

  266.         fShmNonRtServerControl.writeBool(touch);

  267.         fShmNonRtServerControl.commitWrite();

  268.     }

  269. 

  270.     CarlaEngineClient* addClient(CarlaPlugin* const) override

  271.     {

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

  273.     }

  274. 

  275.     void idle() noexcept override

  276.     {

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

  278. 

  279.         if (plugin == nullptr)

  280.         {

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

  282.             {

  283.                 const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  284.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerError);

  285.                 fShmNonRtServerControl.writeUInt(length);

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

  287.                 fShmNonRtServerControl.commitWrite();

  288.             }

  289. 

  290.             signalThreadShouldExit();

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

  292.             return;

  293.         }

  294. 

  295.         const bool wasFirstIdle(fFirstIdle);

  296. 

  297.         if (wasFirstIdle)

  298.         {

  299.             fFirstIdle = false;

  300.             fLastPingTime = Time::currentTimeMillis();

  301.             CARLA_SAFE_ASSERT(fLastPingTime > 0);

  302. 

  303.             char bufStr[STR_MAX+1];

  304.             carla_zeroChars(bufStr, STR_MAX+1);

  305. 

  306.             uint32_t bufStrSize;

  307. 

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

  309.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  310. 

  311.             // kPluginBridgeNonRtServerPluginInfo1

  312.             {

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

  314.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPluginInfo1);

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

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

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

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

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

  320.                 fShmNonRtServerControl.commitWrite();

  321.             }

  322. 

  323.             // kPluginBridgeNonRtServerPluginInfo2

  324.             {

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

  326.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPluginInfo2);

  327. 

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

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

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

  331.                 fShmNonRtServerControl.writeUInt(bufStrSize);

  332.                 fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  333. 

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

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

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

  337.                 fShmNonRtServerControl.writeUInt(bufStrSize);

  338.                 fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  339. 

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

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

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

  343.                 fShmNonRtServerControl.writeUInt(bufStrSize);

  344.                 fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  345. 

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

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

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

  349.                 fShmNonRtServerControl.writeUInt(bufStrSize);

  350.                 fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  351. 

  352.                 fShmNonRtServerControl.commitWrite();

  353.             }

  354. 

  355.             // kPluginBridgeNonRtServerAudioCount

  356.             {

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

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

  359. 

  360.                 // uint/ins, uint/outs

  361.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerAudioCount);

  362.                 fShmNonRtServerControl.writeUInt(aIns);

  363.                 fShmNonRtServerControl.writeUInt(aOuts);

  364.                 fShmNonRtServerControl.commitWrite();

  365. 

  366.                 // kPluginBridgeNonRtServerPortName

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

  368.                 {

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

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

  371. 

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

  373.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPortName);

  374.                     fShmNonRtServerControl.writeByte(kPluginBridgePortAudioInput);

  375.                     fShmNonRtServerControl.writeUInt(i);

  376. 

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

  378.                     fShmNonRtServerControl.writeUInt(bufStrSize);

  379.                     fShmNonRtServerControl.writeCustomData(portName, bufStrSize);

  380.                 }

  381. 

  382.                 // kPluginBridgeNonRtServerPortName

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

  384.                 {

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

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

  387. 

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

  389.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPortName);

  390.                     fShmNonRtServerControl.writeByte(kPluginBridgePortAudioOutput);

  391.                     fShmNonRtServerControl.writeUInt(i);

  392. 

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

  394.                     fShmNonRtServerControl.writeUInt(bufStrSize);

  395.                     fShmNonRtServerControl.writeCustomData(portName, bufStrSize);

  396.                 }

  397.             }

  398. 

  399.             fShmNonRtServerControl.waitIfDataIsReachingLimit();

  400. 

  401.             // kPluginBridgeNonRtServerMidiCount

  402.             {

  403.                 // uint/ins, uint/outs

  404.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerMidiCount);

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

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

  407.                 fShmNonRtServerControl.commitWrite();

  408.             }

  409. 

  410.             fShmNonRtServerControl.waitIfDataIsReachingLimit();

  411. 

  412.             // kPluginBridgeNonRtServerCvCount

  413.             {

  414.                 // uint/ins, uint/outs

  415.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerCvCount);

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

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

  418.                 fShmNonRtServerControl.commitWrite();

  419.             }

  420. 

  421.             fShmNonRtServerControl.waitIfDataIsReachingLimit();

  422. 

  423.             // kPluginBridgeNonRtServerParameter*

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

  425.             {

  426.                 // uint/count

  427.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterCount);

  428.                 fShmNonRtServerControl.writeUInt(count);

  429.                 fShmNonRtServerControl.commitWrite();

  430. 

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

  432.                 {

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

  434. 

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

  436.                         continue;

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

  438.                         continue;

  439. 

  440.                     // kPluginBridgeNonRtServerParameterData1

  441.                     {

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

  443.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterData1);

  444.                         fShmNonRtServerControl.writeUInt(i);

  445.                         fShmNonRtServerControl.writeInt(paramData.rindex);

  446.                         fShmNonRtServerControl.writeUInt(paramData.type);

  447.                         fShmNonRtServerControl.writeUInt(paramData.hints);

  448.                         fShmNonRtServerControl.writeShort(paramData.midiCC);

  449.                         fShmNonRtServerControl.commitWrite();

  450.                     }

  451. 

  452.                     // kPluginBridgeNonRtServerParameterData2

  453.                     {

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

  455.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterData2);

  456.                         fShmNonRtServerControl.writeUInt(i);

  457. 

  458.                         if (plugin->getParameterName(i, bufStr))

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

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

  461.                         fShmNonRtServerControl.writeUInt(bufStrSize);

  462.                         fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  463. 

  464.                         if (plugin->getParameterSymbol(i, bufStr))

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

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

  467.                         fShmNonRtServerControl.writeUInt(bufStrSize);

  468.                         fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  469. 

  470.                         if (plugin->getParameterUnit(i, bufStr))

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

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

  473.                         fShmNonRtServerControl.writeUInt(bufStrSize);

  474.                         fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  475. 

  476.                         fShmNonRtServerControl.commitWrite();

  477.                     }

  478. 

  479.                     // kPluginBridgeNonRtServerParameterRanges

  480.                     {

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

  482. 

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

  484.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterRanges);

  485.                         fShmNonRtServerControl.writeUInt(i);

  486.                         fShmNonRtServerControl.writeFloat(paramRanges.def);

  487.                         fShmNonRtServerControl.writeFloat(paramRanges.min);

  488.                         fShmNonRtServerControl.writeFloat(paramRanges.max);

  489.                         fShmNonRtServerControl.writeFloat(paramRanges.step);

  490.                         fShmNonRtServerControl.writeFloat(paramRanges.stepSmall);

  491.                         fShmNonRtServerControl.writeFloat(paramRanges.stepLarge);

  492.                         fShmNonRtServerControl.commitWrite();

  493.                     }

  494. 

  495.                     // kPluginBridgeNonRtServerParameterValue2

  496.                     {

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

  498.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterValue2);

  499.                         fShmNonRtServerControl.writeUInt(i);

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

  501.                         fShmNonRtServerControl.commitWrite();

  502.                     }

  503. 

  504.                     fShmNonRtServerControl.waitIfDataIsReachingLimit();

  505.                 }

  506.             }

  507. 

  508.             // kPluginBridgeNonRtServerProgram*

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

  510.             {

  511.                 // uint/count

  512.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerProgramCount);

  513.                 fShmNonRtServerControl.writeUInt(count);

  514.                 fShmNonRtServerControl.commitWrite();

  515. 

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

  517.                 {

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

  519.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerProgramName);

  520.                     fShmNonRtServerControl.writeUInt(i);

  521. 

  522.                     if (plugin->getProgramName(i, bufStr))

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

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

  525.                     fShmNonRtServerControl.writeUInt(bufStrSize);

  526.                     fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  527. 

  528.                     fShmNonRtServerControl.commitWrite();

  529.                     fShmNonRtServerControl.waitIfDataIsReachingLimit();

  530.                 }

  531.             }

  532. 

  533.             // kPluginBridgeNonRtServerMidiProgram*

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

  535.             {

  536.                 // uint/count

  537.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerMidiProgramCount);

  538.                 fShmNonRtServerControl.writeUInt(count);

  539.                 fShmNonRtServerControl.commitWrite();

  540. 

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

  542.                 {

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

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

  545. 

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

  547.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerMidiProgramData);

  548.                     fShmNonRtServerControl.writeUInt(i);

  549.                     fShmNonRtServerControl.writeUInt(mpData.bank);

  550.                     fShmNonRtServerControl.writeUInt(mpData.program);

  551. 

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

  553.                     fShmNonRtServerControl.writeUInt(bufStrSize);

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

  555. 

  556.                     fShmNonRtServerControl.commitWrite();

  557.                     fShmNonRtServerControl.waitIfDataIsReachingLimit();

  558.                 }

  559.             }

  560. 

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

  562.             {

  563.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetLatency);

  564.                 fShmNonRtServerControl.writeUInt(latency);

  565.                 fShmNonRtServerControl.commitWrite();

  566.             }

  567. 

  568.             // ready!

  569.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerReady);

  570.             fShmNonRtServerControl.commitWrite();

  571.             fShmNonRtServerControl.waitIfDataIsReachingLimit();

  572. 

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

  574.             fLastPingTime = Time::currentTimeMillis();

  575.         }

  576. 

  577.         // send parameter outputs

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

  579.         {

  580.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  581. 

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

  583.             {

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

  585.                     continue;

  586. 

  587.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterValue2);

  588.                 fShmNonRtServerControl.writeUInt(i);

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

  590. 

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

  592.                 if (! fShmNonRtServerControl.commitWrite())

  593.                     break;

  594.             }

  595.         }

  596. 

  597.         CarlaEngine::idle();

  598. 

  599.         try {

  600.             handleNonRtData();

  601.         } CARLA_SAFE_EXCEPTION("handleNonRtData");

  602. 

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

  604.         {

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

  606.             signalThreadShouldExit();

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

  608.         }

  609.     }

  610. 

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

  612.                   const EngineCallbackOpcode action, const uint pluginId,

  613.                   const int value1, const int value2, const int value3,

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

  615.     {

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

  617. 

  618.         if (fClosingDown)

  619.             return;

  620. 

  621.         switch (action)

  622.         {

  623.         // uint/index float/value

  624.         case ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED: {

  625.             CARLA_SAFE_ASSERT_BREAK(value1 >= 0);

  626.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  627.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterValue);

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

  629.             fShmNonRtServerControl.writeFloat(valuef);

  630.             fShmNonRtServerControl.commitWrite();

  631.         }   break;

  632. 

  633.         // uint/index float/value

  634.         case ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED: {

  635.             CARLA_SAFE_ASSERT_BREAK(value1 >= 0);

  636.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  637.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerDefaultValue);

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

  639.             fShmNonRtServerControl.writeFloat(valuef);

  640.             fShmNonRtServerControl.commitWrite();

  641.         }   break;

  642. 

  643.         // int/index

  644.         case ENGINE_CALLBACK_PROGRAM_CHANGED: {

  645.             CARLA_SAFE_ASSERT_BREAK(value1 >= -1);

  646.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  647.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerCurrentProgram);

  648.             fShmNonRtServerControl.writeInt(value1);

  649.             fShmNonRtServerControl.commitWrite();

  650.         }   break;

  651. 

  652.         // int/index

  653.         case ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED: {

  654.             CARLA_SAFE_ASSERT_BREAK(value1 >= -1);

  655.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  656.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerCurrentMidiProgram);

  657.             fShmNonRtServerControl.writeInt(value1);

  658.             fShmNonRtServerControl.commitWrite();

  659.         }   break;

  660. 

  661.         case ENGINE_CALLBACK_UI_STATE_CHANGED:

  662.             if (value1 != 1)

  663.             {

  664.                 const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  665.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerUiClosed);

  666.                 fShmNonRtServerControl.commitWrite();

  667.             }

  668.             break;

  669. 

  670.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

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

  672.             {

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

  674.                 {

  675.                     const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  676. 

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

  678.                     {

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

  680. 

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

  682.                             continue;

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

  684.                             continue;

  685. 

  686.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterValue);

  687.                         fShmNonRtServerControl.writeUInt(i);

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

  689.                         fShmNonRtServerControl.commitWrite();

  690. 

  691.                         fShmNonRtServerControl.waitIfDataIsReachingLimit();

  692.                     }

  693.                 }

  694.             }

  695.             break;

  696. 

  697.         default:

  698.             break;

  699.         }

  700.     }

  701. 

  702.     // -------------------------------------------------------------------

  703. 

  704.     void clear() noexcept

  705.     {

  706.         fShmAudioPool.clear();

  707.         fShmRtClientControl.clear();

  708.         fShmNonRtClientControl.clear();

  709.         fShmNonRtServerControl.clear();

  710.     }

  711. 

  712.     void handleNonRtData()

  713.     {

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

  715.         CARLA_SAFE_ASSERT_RETURN(plugin != nullptr,);

  716. 

  717.         for (; fShmNonRtClientControl.isDataAvailableForReading();)

  718.         {

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

  720. 

  721. #ifdef DEBUG

  722.             if (opcode != kPluginBridgeNonRtClientPing) {

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

  724.             }

  725. #endif

  726. 

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

  728.                 fLastPingTime = Time::currentTimeMillis();

  729. 

  730.             switch (opcode)

  731.             {

  732.             case kPluginBridgeNonRtClientNull:

  733.                 break;

  734. 

  735.             case kPluginBridgeNonRtClientVersion: {

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

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

  738.             }   break;

  739. 

  740.             case kPluginBridgeNonRtClientPing: {

  741.                 const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  742. 

  743.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPong);

  744.                 fShmNonRtServerControl.commitWrite();

  745.             }   break;

  746. 

  747.             case kPluginBridgeNonRtClientPingOnOff: {

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

  749. 

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

  751.             }   break;

  752. 

  753.             case kPluginBridgeNonRtClientActivate:

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

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

  756.                 break;

  757. 

  758.             case kPluginBridgeNonRtClientDeactivate:

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

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

  761.                 break;

  762. 

  763.             case kPluginBridgeNonRtClientInitialSetup:

  764.                 // should never happen!!

  765.                 fShmNonRtServerControl.readUInt();

  766.                 fShmNonRtServerControl.readDouble();

  767.                 break;

  768. 

  769.             case kPluginBridgeNonRtClientSetParameterValue: {

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

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

  772. 

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

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

  775.                 break;

  776.             }

  777. 

  778.             case kPluginBridgeNonRtClientSetParameterMidiChannel: {

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

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

  781. 

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

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

  784.                 break;

  785.             }

  786. 

  787.             case kPluginBridgeNonRtClientSetParameterMidiCC: {

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

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

  790. 

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

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

  793.                 break;

  794.             }

  795. 

  796.             case kPluginBridgeNonRtClientSetProgram: {

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

  798. 

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

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

  801.                 break;

  802.             }

  803. 

  804.             case kPluginBridgeNonRtClientSetMidiProgram: {

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

  806. 

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

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

  809.                 break;

  810.             }

  811. 

  812.             case kPluginBridgeNonRtClientSetCustomData: {

  813.                 // type

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

  815.                 char typeStr[typeSize+1];

  816.                 carla_zeroChars(typeStr, typeSize+1);

  817.                 fShmNonRtClientControl.readCustomData(typeStr, typeSize);

  818. 

  819.                 // key

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

  821.                 char keyStr[keySize+1];

  822.                 carla_zeroChars(keyStr, keySize+1);

  823.                 fShmNonRtClientControl.readCustomData(keyStr, keySize);

  824. 

  825.                 // value

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

  827.                 char valueStr[valueSize+1];

  828.                 carla_zeroChars(valueStr, valueSize+1);

  829. 

  830.                 if (valueSize > 0)

  831.                     fShmNonRtClientControl.readCustomData(valueStr, valueSize);

  832. 

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

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

  835.                 break;

  836.             }

  837. 

  838.             case kPluginBridgeNonRtClientSetChunkDataFile: {

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

  840.                 CARLA_SAFE_ASSERT_BREAK(size > 0);

  841. 

  842.                 char chunkFilePathTry[size+1];

  843.                 carla_zeroChars(chunkFilePathTry, size+1);

  844.                 fShmNonRtClientControl.readCustomData(chunkFilePathTry, size);

  845. 

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

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

  848. 

  849.                 String chunkFilePath(chunkFilePathTry);

  850. 

  851. #ifdef CARLA_OS_WIN

  852.                 // check if running under Wine

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

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

  855. #endif

  856. 

  857.                 File chunkFile(chunkFilePath);

  858.                 CARLA_SAFE_ASSERT_BREAK(chunkFile.existsAsFile());

  859. 

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

  861.                 chunkFile.deleteFile();

  862.                 CARLA_SAFE_ASSERT_BREAK(chunkDataBase64.isNotEmpty());

  863. 

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

  865. 

  866. #ifdef CARLA_PROPER_CPP11_SUPPORT

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

  868. #else

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

  870. #endif

  871.                 break;

  872.             }

  873. 

  874.             case kPluginBridgeNonRtClientSetCtrlChannel: {

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

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

  877. 

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

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

  880.                 break;

  881.             }

  882. 

  883.             case kPluginBridgeNonRtClientSetOption: {

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

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

  886. 

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

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

  889.                 break;

  890.             }

  891. 

  892.             case kPluginBridgeNonRtClientGetParameterText: {

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

  894. 

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

  896.                 {

  897.                     char bufStr[STR_MAX+1];

  898.                     carla_zeroChars(bufStr, STR_MAX+1);

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

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

  901. 

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

  903. 

  904.                     const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  905. 

  906.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetParameterText);

  907. 

  908.                     fShmNonRtServerControl.writeInt(index);

  909.                     fShmNonRtServerControl.writeUInt(bufStrLen);

  910.                     fShmNonRtServerControl.writeCustomData(bufStr, bufStrLen);

  911.                     fShmNonRtServerControl.commitWrite();

  912. 

  913.                     fShmNonRtServerControl.waitIfDataIsReachingLimit();

  914.                 }

  915. 

  916.                 break;

  917.             }

  918. 

  919.             case kPluginBridgeNonRtClientPrepareForSave: {

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

  921.                     break;

  922. 

  923.                 plugin->prepareForSave();

  924. 

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

  926.                 {

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

  928. 

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

  930.                         continue;

  931. 

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

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

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

  935. 

  936.                     {

  937.                         const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  938. 

  939.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetCustomData);

  940. 

  941.                         fShmNonRtServerControl.writeUInt(typeLen);

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

  943. 

  944.                         fShmNonRtServerControl.writeUInt(keyLen);

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

  946. 

  947.                         fShmNonRtServerControl.writeUInt(valueLen);

  948. 

  949.                         if (valueLen > 0)

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

  951. 

  952.                         fShmNonRtServerControl.commitWrite();

  953.                         fShmNonRtServerControl.waitIfDataIsReachingLimit();

  954.                     }

  955.                 }

  956. 

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

  958.                 {

  959.                     void* data = nullptr;

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

  961.                     {

  962.                         CARLA_SAFE_ASSERT_BREAK(data != nullptr);

  963. 

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

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

  966. 

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

  968. 

  969.                         filePath += CARLA_OS_SEP_STR ".CarlaChunk_";

  970.                         filePath += fShmAudioPool.getFilenameSuffix();

  971. 

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

  973.                         {

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

  975. 

  976.                             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  977. 

  978.                             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetChunkDataFile);

  979.                             fShmNonRtServerControl.writeUInt(ulength);

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

  981.                             fShmNonRtServerControl.commitWrite();

  982.                         }

  983.                     }

  984.                 }

  985. 

  986.                 {

  987.                     const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  988. 

  989.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSaved);

  990.                     fShmNonRtServerControl.commitWrite();

  991.                 }

  992.                 break;

  993.             }

  994. 

  995.             case kPluginBridgeNonRtClientRestoreLV2State:

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

  997.                     plugin->restoreLV2State();

  998.                 break;

  999. 

  1000.             case kPluginBridgeNonRtClientShowUI:

  1001.                 if (plugin != nullptr && plugin->isEnabled())

  1002.                     plugin->showCustomUI(true);

  1003.                 break;

  1004. 

  1005.             case kPluginBridgeNonRtClientHideUI:

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

  1007.                     plugin->showCustomUI(false);

  1008.                 break;

  1009. 

  1010.             case kPluginBridgeNonRtClientUiParameterChange: {

  1011.                 const uint32_t index(fShmNonRtClientControl.readUInt());

  1012.                 const float    value(fShmNonRtClientControl.readFloat());

  1013. 

  1014.                 if (plugin != nullptr && plugin->isEnabled())

  1015.                     plugin->uiParameterChange(index, value);

  1016.                 break;

  1017.             }

  1018. 

  1019.             case kPluginBridgeNonRtClientUiProgramChange: {

  1020.                 const uint32_t index(fShmNonRtClientControl.readUInt());

  1021. 

  1022.                 if (plugin != nullptr && plugin->isEnabled())

  1023.                     plugin->uiProgramChange(index);

  1024.                 break;

  1025.             }

  1026. 

  1027.             case kPluginBridgeNonRtClientUiMidiProgramChange: {

  1028.                 const uint32_t index(fShmNonRtClientControl.readUInt());

  1029. 

  1030.                 if (plugin != nullptr && plugin->isEnabled())

  1031.                     plugin->uiMidiProgramChange(index);

  1032.                 break;

  1033.             }

  1034. 

  1035.             case kPluginBridgeNonRtClientUiNoteOn: {

  1036.                 const uint8_t chnl(fShmNonRtClientControl.readByte());

  1037.                 const uint8_t note(fShmNonRtClientControl.readByte());

  1038.                 const uint8_t velo(fShmNonRtClientControl.readByte());

  1039. 

  1040.                 if (plugin != nullptr && plugin->isEnabled())

  1041.                     plugin->uiNoteOn(chnl, note, velo);

  1042.                 break;

  1043.             }

  1044. 

  1045.             case kPluginBridgeNonRtClientUiNoteOff: {

  1046.                 const uint8_t chnl(fShmNonRtClientControl.readByte());

  1047.                 const uint8_t note(fShmNonRtClientControl.readByte());

  1048. 

  1049.                 if (plugin != nullptr && plugin->isEnabled())

  1050.                     plugin->uiNoteOff(chnl, note);

  1051.                 break;

  1052.             }

  1053. 

  1054.             case kPluginBridgeNonRtClientQuit:

  1055.                 fClosingDown = true;

  1056.                 signalThreadShouldExit();

  1057.                 callback(true, true, ENGINE_CALLBACK_QUIT, 0, 0, 0, 0, 0.0f, nullptr);

  1058.                 break;

  1059.             }

  1060.         }

  1061.     }

  1062. 

  1063.     // -------------------------------------------------------------------

  1064. 

  1065. protected:

  1066.     void run() override

  1067.     {

  1068. #ifdef __SSE2_MATH__

  1069.         // Set FTZ and DAZ flags

  1070.         _mm_setcsr(_mm_getcsr() | 0x8040);

  1071. #endif

  1072. 

  1073.         bool quitReceived = false;

  1074. 

  1075.         for (; ! shouldThreadExit();)

  1076.         {

  1077.             const BridgeRtClientControl::WaitHelper helper(fShmRtClientControl);

  1078. 

  1079.             if (! helper.ok)

  1080.                 continue;

  1081. 

  1082.             for (; fShmRtClientControl.isDataAvailableForReading();)

  1083.             {

  1084.                 const PluginBridgeRtClientOpcode opcode(fShmRtClientControl.readOpcode());

  1085.                 CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1086. 

  1087. #ifdef DEBUG

  1088.                 if (opcode != kPluginBridgeRtClientProcess && opcode != kPluginBridgeRtClientMidiEvent) {

  1089.                     carla_debug("CarlaEngineBridgeRtThread::run() - got opcode: %s", PluginBridgeRtClientOpcode2str(opcode));

  1090.                 }

  1091. #endif

  1092. 

  1093.                 switch (opcode)

  1094.                 {

  1095.                 case kPluginBridgeRtClientNull:

  1096.                     break;

  1097. 

  1098.                 case kPluginBridgeRtClientSetAudioPool: {

  1099.                     if (fShmAudioPool.data != nullptr)

  1100.                     {

  1101.                         jackbridge_shm_unmap(fShmAudioPool.shm, fShmAudioPool.data);

  1102.                         fShmAudioPool.data = nullptr;

  1103.                     }

  1104.                     const uint64_t poolSize(fShmRtClientControl.readULong());

  1105.                     CARLA_SAFE_ASSERT_BREAK(poolSize > 0);

  1106.                     fShmAudioPool.data = (float*)jackbridge_shm_map(fShmAudioPool.shm, static_cast<size_t>(poolSize));

  1107.                     break;

  1108.                 }

  1109. 

  1110.                 case kPluginBridgeRtClientSetBufferSize: {

  1111.                     const uint32_t bufferSize(fShmRtClientControl.readUInt());

  1112.                     pData->bufferSize = bufferSize;

  1113.                     bufferSizeChanged(bufferSize);

  1114.                     break;

  1115.                 }

  1116. 

  1117.                 case kPluginBridgeRtClientSetSampleRate: {

  1118.                     const double sampleRate(fShmRtClientControl.readDouble());

  1119.                     pData->sampleRate = sampleRate;

  1120.                     sampleRateChanged(sampleRate);

  1121.                     break;

  1122.                 }

  1123. 

  1124.                 case kPluginBridgeRtClientSetOnline:

  1125.                     fIsOffline = fShmRtClientControl.readBool();

  1126.                     offlineModeChanged(fIsOffline);

  1127.                     break;

  1128. 

  1129.                 case kPluginBridgeRtClientControlEventParameter: {

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

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

  1132.                     const uint16_t param(fShmRtClientControl.readUShort());

  1133.                     const float    value(fShmRtClientControl.readFloat());

  1134. 

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

  1136.                     {

  1137.                         event->type    = kEngineEventTypeControl;

  1138.                         event->time    = time;

  1139.                         event->channel = channel;

  1140.                         event->ctrl.type  = kEngineControlEventTypeParameter;

  1141.                         event->ctrl.param = param;

  1142.                         event->ctrl.value = value;

  1143.                     }

  1144.                     break;

  1145.                 }

  1146. 

  1147.                 case kPluginBridgeRtClientControlEventMidiBank: {

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

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

  1150.                     const uint16_t index(fShmRtClientControl.readUShort());

  1151. 

  1152.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1153.                     {

  1154.                         event->type    = kEngineEventTypeControl;

  1155.                         event->time    = time;

  1156.                         event->channel = channel;

  1157.                         event->ctrl.type  = kEngineControlEventTypeMidiBank;

  1158.                         event->ctrl.param = index;

  1159.                         event->ctrl.value = 0.0f;

  1160.                     }

  1161.                     break;

  1162.                 }

  1163. 

  1164.                 case kPluginBridgeRtClientControlEventMidiProgram: {

  1165.                     const uint32_t time(fShmRtClientControl.readUInt());

  1166.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1167.                     const uint16_t index(fShmRtClientControl.readUShort());

  1168. 

  1169.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1170.                     {

  1171.                         event->type    = kEngineEventTypeControl;

  1172.                         event->time    = time;

  1173.                         event->channel = channel;

  1174.                         event->ctrl.type  = kEngineControlEventTypeMidiProgram;

  1175.                         event->ctrl.param = index;

  1176.                         event->ctrl.value = 0.0f;

  1177.                     }

  1178.                     break;

  1179.                 }

  1180. 

  1181.                 case kPluginBridgeRtClientControlEventAllSoundOff: {

  1182.                     const uint32_t time(fShmRtClientControl.readUInt());

  1183.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1184. 

  1185.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1186.                     {

  1187.                         event->type    = kEngineEventTypeControl;

  1188.                         event->time    = time;

  1189.                         event->channel = channel;

  1190.                         event->ctrl.type  = kEngineControlEventTypeAllSoundOff;

  1191.                         event->ctrl.param = 0;

  1192.                         event->ctrl.value = 0.0f;

  1193.                     }

  1194.                 }   break;

  1195. 

  1196.                 case kPluginBridgeRtClientControlEventAllNotesOff: {

  1197.                     const uint32_t time(fShmRtClientControl.readUInt());

  1198.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1199. 

  1200.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1201.                     {

  1202.                         event->type    = kEngineEventTypeControl;

  1203.                         event->time    = time;

  1204.                         event->channel = channel;

  1205.                         event->ctrl.type  = kEngineControlEventTypeAllNotesOff;

  1206.                         event->ctrl.param = 0;

  1207.                         event->ctrl.value = 0.0f;

  1208.                     }

  1209.                 }   break;

  1210. 

  1211.                 case kPluginBridgeRtClientMidiEvent: {

  1212.                     const uint32_t time(fShmRtClientControl.readUInt());

  1213.                     const uint8_t  port(fShmRtClientControl.readByte());

  1214.                     const uint8_t  size(fShmRtClientControl.readByte());

  1215.                     CARLA_SAFE_ASSERT_BREAK(size > 0);

  1216. 

  1217.                     // FIXME variable-size stack

  1218.                     uint8_t data[size];

  1219. 

  1220.                     for (uint8_t i=0; i<size; ++i)

  1221.                         data[i] = fShmRtClientControl.readByte();

  1222. 

  1223.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1224.                     {

  1225.                         event->type    = kEngineEventTypeMidi;

  1226.                         event->time    = time;

  1227.                         event->channel = MIDI_GET_CHANNEL_FROM_DATA(data);

  1228. 

  1229.                         event->midi.port = port;

  1230.                         event->midi.size = size;

  1231. 

  1232.                         if (size > EngineMidiEvent::kDataSize)

  1233.                         {

  1234.                             event->midi.dataExt = data;

  1235.                             std::memset(event->midi.data, 0, sizeof(uint8_t)*EngineMidiEvent::kDataSize);

  1236.                         }

  1237.                         else

  1238.                         {

  1239.                             event->midi.data[0] = MIDI_GET_STATUS_FROM_DATA(data);

  1240. 

  1241.                             uint8_t i=1;

  1242.                             for (; i < size; ++i)

  1243.                                 event->midi.data[i] = data[i];

  1244.                             for (; i < EngineMidiEvent::kDataSize; ++i)

  1245.                                 event->midi.data[i] = 0;

  1246. 

  1247.                             event->midi.dataExt = nullptr;

  1248.                         }

  1249.                     }

  1250.                     break;

  1251.                 }

  1252. 

  1253.                 case kPluginBridgeRtClientProcess: {

  1254.                     const uint32_t frames(fShmRtClientControl.readUInt());

  1255. 

  1256.                     CARLA_SAFE_ASSERT_BREAK(fShmAudioPool.data != nullptr);

  1257. 

  1258.                     if (plugin != nullptr && plugin->isEnabled() && plugin->tryLock(fIsOffline))

  1259.                     {

  1260.                         const BridgeTimeInfo& bridgeTimeInfo(fShmRtClientControl.data->timeInfo);

  1261. 

  1262.                         const uint32_t audioInCount(plugin->getAudioInCount());

  1263.                         const uint32_t audioOutCount(plugin->getAudioOutCount());

  1264.                         const uint32_t cvInCount(plugin->getCVInCount());

  1265.                         const uint32_t cvOutCount(plugin->getCVOutCount());

  1266. 

  1267.                         const float* audioIn[audioInCount];

  1268.                         /* */ float* audioOut[audioOutCount];

  1269.                         const float* cvIn[cvInCount];

  1270.                         /* */ float* cvOut[cvOutCount];

  1271. 

  1272.                         float* fdata = fShmAudioPool.data;

  1273. 

  1274.                         for (uint32_t i=0; i < audioInCount; ++i, fdata += pData->bufferSize)

  1275.                             audioIn[i] = fdata;

  1276.                         for (uint32_t i=0; i < audioOutCount; ++i, fdata += pData->bufferSize)

  1277.                             audioOut[i] = fdata;

  1278. 

  1279.                         for (uint32_t i=0; i < cvInCount; ++i, fdata += pData->bufferSize)

  1280.                             cvIn[i] = fdata;

  1281.                         for (uint32_t i=0; i < cvOutCount; ++i, fdata += pData->bufferSize)

  1282.                             cvOut[i] = fdata;

  1283. 

  1284.                         EngineTimeInfo& timeInfo(pData->timeInfo);

  1285. 

  1286.                         timeInfo.playing   = bridgeTimeInfo.playing;

  1287.                         timeInfo.frame     = bridgeTimeInfo.frame;

  1288.                         timeInfo.usecs     = bridgeTimeInfo.usecs;

  1289.                         timeInfo.bbt.valid = (bridgeTimeInfo.validFlags & kPluginBridgeTimeInfoValidBBT) != 0;

  1290. 

  1291.                         if (timeInfo.bbt.valid)

  1292.                         {

  1293.                             timeInfo.bbt.bar  = bridgeTimeInfo.bar;

  1294.                             timeInfo.bbt.beat = bridgeTimeInfo.beat;

  1295.                             timeInfo.bbt.tick = bridgeTimeInfo.tick;

  1296. 

  1297.                             timeInfo.bbt.beatsPerBar = bridgeTimeInfo.beatsPerBar;

  1298.                             timeInfo.bbt.beatType    = bridgeTimeInfo.beatType;

  1299. 

  1300.                             timeInfo.bbt.ticksPerBeat   = bridgeTimeInfo.ticksPerBeat;

  1301.                             timeInfo.bbt.beatsPerMinute = bridgeTimeInfo.beatsPerMinute;

  1302.                             timeInfo.bbt.barStartTick   = bridgeTimeInfo.barStartTick;

  1303.                         }

  1304. 

  1305.                         plugin->initBuffers();

  1306.                         plugin->process(audioIn, audioOut, cvIn, cvOut, frames);

  1307.                         plugin->unlock();

  1308.                     }

  1309. 

  1310.                     uint8_t* midiData(fShmRtClientControl.data->midiOut);

  1311.                     carla_zeroBytes(midiData, kBridgeBaseMidiOutHeaderSize);

  1312.                     std::size_t curMidiDataPos = 0;

  1313. 

  1314.                     if (pData->events.in[0].type != kEngineEventTypeNull)

  1315.                         carla_zeroStructs(pData->events.in, kMaxEngineEventInternalCount);

  1316. 

  1317.                     if (pData->events.out[0].type != kEngineEventTypeNull)

  1318.                     {

  1319.                         for (ushort i=0; i < kMaxEngineEventInternalCount; ++i)

  1320.                         {

  1321.                             const EngineEvent& event(pData->events.out[i]);

  1322. 

  1323.                             if (event.type == kEngineEventTypeNull)

  1324.                                 break;

  1325. 

  1326.                             if (event.type == kEngineEventTypeControl)

  1327.                             {

  1328.                                 uint8_t data[3];

  1329.                                 const uint8_t size = event.ctrl.convertToMidiData(event.channel, data);

  1330.                                 CARLA_SAFE_ASSERT_CONTINUE(size > 0 && size <= 3);

  1331. 

  1332.                                 if (curMidiDataPos + kBridgeBaseMidiOutHeaderSize + size >= kBridgeRtClientDataMidiOutSize)

  1333.                                     break;

  1334. 

  1335.                                 // set time

  1336.                                 *(uint32_t*)midiData = event.time;

  1337.                                 midiData = midiData + 4;

  1338.                                 curMidiDataPos += 4;

  1339. 

  1340.                                 // set port

  1341.                                 *midiData++ = 0;

  1342.                                 ++curMidiDataPos;

  1343. 

  1344.                                 // set size

  1345.                                 *midiData++ = size;

  1346.                                 ++curMidiDataPos;

  1347. 

  1348.                                 // set data

  1349.                                 for (uint8_t j=0; j<size; ++j)

  1350.                                     *midiData++ = data[j];

  1351. 

  1352.                                 curMidiDataPos += size;

  1353.                             }

  1354.                             else if (event.type == kEngineEventTypeMidi)

  1355.                             {

  1356.                                 const EngineMidiEvent& _midiEvent(event.midi);

  1357. 

  1358.                                 if (curMidiDataPos + kBridgeBaseMidiOutHeaderSize + _midiEvent.size >= kBridgeRtClientDataMidiOutSize)

  1359.                                     break;

  1360. 

  1361.                                 const uint8_t* const _midiData(_midiEvent.dataExt != nullptr ? _midiEvent.dataExt : _midiEvent.data);

  1362. 

  1363.                                 // set time

  1364.                                 *(uint32_t*)midiData = event.time;

  1365.                                 midiData += 4;

  1366.                                 curMidiDataPos += 4;

  1367. 

  1368.                                 // set port

  1369.                                 *midiData++ = _midiEvent.port;

  1370.                                 ++curMidiDataPos;

  1371. 

  1372.                                 // set size

  1373.                                 *midiData++ = _midiEvent.size;

  1374.                                 ++curMidiDataPos;

  1375. 

  1376.                                 // set data

  1377.                                 *midiData++ = uint8_t(_midiData[0] | (event.channel & MIDI_CHANNEL_BIT));

  1378. 

  1379.                                 for (uint8_t j=1; j<_midiEvent.size; ++j)

  1380.                                     *midiData++ = _midiData[j];

  1381. 

  1382.                                 curMidiDataPos += _midiEvent.size;

  1383.                             }

  1384.                         }

  1385. 

  1386.                         if (curMidiDataPos != 0 &&

  1387.                             curMidiDataPos + kBridgeBaseMidiOutHeaderSize < kBridgeRtClientDataMidiOutSize)

  1388.                             carla_zeroBytes(midiData, kBridgeBaseMidiOutHeaderSize);

  1389. 

  1390.                         carla_zeroStructs(pData->events.out, kMaxEngineEventInternalCount);

  1391.                     }

  1392. 

  1393.                 }   break;

  1394. 

  1395.                 case kPluginBridgeRtClientQuit: {

  1396.                     quitReceived = true;

  1397.                     fClosingDown = true;

  1398.                     signalThreadShouldExit();

  1399.                 }   break;

  1400.                 }

  1401.             }

  1402.         }

  1403. 

  1404.         callback(true, true, ENGINE_CALLBACK_ENGINE_STOPPED, 0, 0, 0, 0, 0.0f, nullptr);

  1405. 

  1406.         if (! quitReceived)

  1407.         {

  1408.             const char* const message("Plugin bridge error, process thread has stopped");

  1409.             const std::size_t messageSize(std::strlen(message));

  1410. 

  1411.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1412.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerError);

  1413.             fShmNonRtServerControl.writeUInt(messageSize);

  1414.             fShmNonRtServerControl.writeCustomData(message, messageSize);

  1415.             fShmNonRtServerControl.commitWrite();

  1416.         }

  1417.     }

  1418. 

  1419.     // called from process thread above

  1420.     EngineEvent* getNextFreeInputEvent() const noexcept

  1421.     {

  1422.         for (ushort i=0; i < kMaxEngineEventInternalCount; ++i)

  1423.         {

  1424.             EngineEvent* const event(&pData->events.in[i]);

  1425. 

  1426.             if (event->type == kEngineEventTypeNull)

  1427.                 return event;

  1428.         }

  1429.         return nullptr;

  1430.     }

  1431. 

  1432.     void latencyChanged(const uint32_t samples) noexcept override

  1433.     {

  1434.         const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1435. 

  1436.         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetLatency);

  1437.         fShmNonRtServerControl.writeUInt(samples);

  1438.         fShmNonRtServerControl.commitWrite();

  1439.     }

  1440. 

  1441.     // -------------------------------------------------------------------

  1442. 

  1443. private:

  1444.     BridgeAudioPool          fShmAudioPool;

  1445.     BridgeRtClientControl    fShmRtClientControl;

  1446.     BridgeNonRtClientControl fShmNonRtClientControl;

  1447.     BridgeNonRtServerControl fShmNonRtServerControl;

  1448. 

  1449.     CarlaString fBaseNameAudioPool;

  1450.     CarlaString fBaseNameRtClientControl;

  1451.     CarlaString fBaseNameNonRtClientControl;

  1452.     CarlaString fBaseNameNonRtServerControl;

  1453. 

  1454.     bool fClosingDown;

  1455.     bool fIsOffline;

  1456.     bool fFirstIdle;

  1457.     int64_t fLastPingTime;

  1458. 

  1459.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineBridge)

  1460. };

  1461. 

  1462. // -----------------------------------------------------------------------

  1463. 

  1464. CarlaEngine* CarlaEngine::newBridge(const char* const audioPoolBaseName, const char* const rtClientBaseName, const char* const nonRtClientBaseName, const char* const nonRtServerBaseName)

  1465. {

  1466.     return new CarlaEngineBridge(audioPoolBaseName, rtClientBaseName, nonRtClientBaseName, nonRtServerBaseName);

  1467. }

  1468. 

  1469. // -----------------------------------------------------------------------

  1470. 

  1471. CARLA_BACKEND_END_NAMESPACE

  1472. 

  1473. // -----------------------------------------------------------------------

  1474. 

  1475. #include "CarlaBridgeUtils.cpp"

  1476. 

  1477. // -----------------------------------------------------------------------