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

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  1. /*

  2.  * Carla Plugin Bridge

  3.  * Copyright (C) 2011-2015 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. #if defined(BUILD_BRIDGE) && defined(BRIDGE_PLUGIN)

  19. # error This file should be used under bridge mode

  20. #endif

  21. 

  22. #include "CarlaPluginInternal.hpp"

  23. 

  24. #include "CarlaBackendUtils.hpp"

  25. #include "CarlaBase64Utils.hpp"

  26. #include "CarlaBridgeUtils.hpp"

  27. #include "CarlaEngineUtils.hpp"

  28. #include "CarlaMathUtils.hpp"

  29. #include "CarlaShmUtils.hpp"

  30. #include "CarlaThread.hpp"

  31. 

  32. #include "jackbridge/JackBridge.hpp"

  33. 

  34. #include <ctime>

  35. 

  36. // -------------------------------------------------------------------------------------------------------------------

  37. 

  38. using juce::ChildProcess;

  39. using juce::File;

  40. using juce::ScopedPointer;

  41. using juce::String;

  42. using juce::StringArray;

  43. using juce::Time;

  44. 

  45. CARLA_BACKEND_START_NAMESPACE

  46. 

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

  48. 

  49. struct BridgeAudioPool {

  50.     CarlaString filename;

  51.     std::size_t size;

  52.     float* data;

  53.     carla_shm_t shm;

  54. 

  55.     BridgeAudioPool() noexcept

  56.         : filename(),

  57.           size(0),

  58.           data(nullptr)

  59. #ifdef CARLA_PROPER_CPP11_SUPPORT

  60.         , shm(carla_shm_t_INIT) {}

  61. #else

  62.     {

  63.         carla_shm_init(shm);

  64.     }

  65. #endif

  66. 

  67.     ~BridgeAudioPool() noexcept

  68.     {

  69.         // should be cleared by now

  70.         CARLA_SAFE_ASSERT(data == nullptr);

  71. 

  72.         clear();

  73.     }

  74. 

  75.     bool initialize() noexcept

  76.     {

  77.         char tmpFileBase[64];

  78. 

  79.         std::sprintf(tmpFileBase, PLUGIN_BRIDGE_NAMEPREFIX_AUDIO_POOL "XXXXXX");

  80. 

  81.         shm = carla_shm_create_temp(tmpFileBase);

  82. 

  83.         CARLA_SAFE_ASSERT_RETURN(carla_is_shm_valid(shm), false);

  84. 

  85.         filename = tmpFileBase;

  86.         return true;

  87.     }

  88. 

  89.     void clear() noexcept

  90.     {

  91.         filename.clear();

  92. 

  93.         if (! carla_is_shm_valid(shm))

  94.         {

  95.             CARLA_SAFE_ASSERT(data == nullptr);

  96.             return;

  97.         }

  98. 

  99.         if (data != nullptr)

  100.         {

  101.             carla_shm_unmap(shm, data);

  102.             data = nullptr;

  103.         }

  104. 

  105.         size = 0;

  106.         carla_shm_close(shm);

  107.         carla_shm_init(shm);

  108.     }

  109. 

  110.     void resize(const uint32_t bufferSize, const uint32_t audioPortCount, const uint32_t cvPortCount) noexcept

  111.     {

  112.         CARLA_SAFE_ASSERT_RETURN(carla_is_shm_valid(shm),);

  113. 

  114.         if (data != nullptr)

  115.             carla_shm_unmap(shm, data);

  116. 

  117.         size = (audioPortCount+cvPortCount)*bufferSize*sizeof(float);

  118. 

  119.         if (size == 0)

  120.             size = sizeof(float);

  121. 

  122.         data = (float*)carla_shm_map(shm, size);

  123.         std::memset(data, 0, size);

  124.     }

  125. 

  126.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeAudioPool)

  127. };

  128. 

  129. // -------------------------------------------------------------------------------------------------------------------

  130. 

  131. struct BridgeRtClientControl : public CarlaRingBufferControl<SmallStackBuffer> {

  132.     BridgeRtClientData* data;

  133.     CarlaString filename;

  134.     bool needsSemDestroy;

  135.     carla_shm_t shm;

  136. 

  137.     BridgeRtClientControl()

  138.         : data(nullptr),

  139.           filename(),

  140.           needsSemDestroy(false)

  141. #ifdef CARLA_PROPER_CPP11_SUPPORT

  142.         , shm(carla_shm_t_INIT) {}

  143. #else

  144.     {

  145.         carla_shm_init(shm);

  146.     }

  147. #endif

  148. 

  149.     ~BridgeRtClientControl() noexcept override

  150.     {

  151.         // should be cleared by now

  152.         CARLA_SAFE_ASSERT(data == nullptr);

  153. 

  154.         clear();

  155.     }

  156. 

  157.     bool initialize() noexcept

  158.     {

  159.         char tmpFileBase[64];

  160. 

  161.         std::sprintf(tmpFileBase, PLUGIN_BRIDGE_NAMEPREFIX_RT_CLIENT "XXXXXX");

  162. 

  163.         shm = carla_shm_create_temp(tmpFileBase);

  164. 

  165.         CARLA_SAFE_ASSERT_RETURN(carla_is_shm_valid(shm), false);

  166. 

  167.         if (! mapData())

  168.         {

  169.             carla_shm_close(shm);

  170.             carla_shm_init(shm);

  171.             return false;

  172.         }

  173. 

  174.         CARLA_SAFE_ASSERT(data != nullptr);

  175. 

  176.         if (! jackbridge_sem_init(&data->sem.server))

  177.         {

  178.             unmapData();

  179.             carla_shm_close(shm);

  180.             carla_shm_init(shm);

  181.             return false;

  182.         }

  183. 

  184.         if (! jackbridge_sem_init(&data->sem.client))

  185.         {

  186.             jackbridge_sem_destroy(&data->sem.server);

  187.             unmapData();

  188.             carla_shm_close(shm);

  189.             carla_shm_init(shm);

  190.             return false;

  191.         }

  192. 

  193.         filename = tmpFileBase;

  194.         needsSemDestroy = true;

  195.         return true;

  196.     }

  197. 

  198.     void clear() noexcept

  199.     {

  200.         filename.clear();

  201. 

  202.         if (needsSemDestroy)

  203.         {

  204.             jackbridge_sem_destroy(&data->sem.client);

  205.             jackbridge_sem_destroy(&data->sem.server);

  206.             needsSemDestroy = false;

  207.         }

  208. 

  209.         if (data != nullptr)

  210.             unmapData();

  211. 

  212.         if (! carla_is_shm_valid(shm))

  213.             return;

  214. 

  215.         carla_shm_close(shm);

  216.         carla_shm_init(shm);

  217.     }

  218. 

  219.     bool mapData() noexcept

  220.     {

  221.         CARLA_SAFE_ASSERT(data == nullptr);

  222. 

  223.         if (carla_shm_map<BridgeRtClientData>(shm, data))

  224.         {

  225.             std::memset(data, 0, sizeof(BridgeRtClientData));

  226.             setRingBuffer(&data->ringBuffer, true);

  227.             return true;

  228.         }

  229. 

  230.         return false;

  231.     }

  232. 

  233.     void unmapData() noexcept

  234.     {

  235.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  236. 

  237.         carla_shm_unmap(shm, data);

  238.         data = nullptr;

  239. 

  240.         setRingBuffer(nullptr, false);

  241.     }

  242. 

  243.     bool waitForClient(const uint msecs) noexcept

  244.     {

  245.         CARLA_SAFE_ASSERT_RETURN(data != nullptr, false);

  246. 

  247.         jackbridge_sem_post(&data->sem.server);

  248. 

  249.         return jackbridge_sem_timedwait(&data->sem.client, msecs);

  250.     }

  251. 

  252.     void writeOpcode(const PluginBridgeRtClientOpcode opcode) noexcept

  253.     {

  254.         writeUInt(static_cast<uint32_t>(opcode));

  255.     }

  256. 

  257.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeRtClientControl)

  258. };

  259. 

  260. // -------------------------------------------------------------------------------------------------------------------

  261. 

  262. struct BridgeNonRtClientControl : public CarlaRingBufferControl<BigStackBuffer> {

  263.     BridgeNonRtClientData* data;

  264.     CarlaString filename;

  265.     CarlaMutex mutex;

  266.     carla_shm_t shm;

  267. 

  268.     BridgeNonRtClientControl() noexcept

  269.         : data(nullptr),

  270.           filename(),

  271.           mutex()

  272. #ifdef CARLA_PROPER_CPP11_SUPPORT

  273.         , shm(carla_shm_t_INIT) {}

  274. #else

  275.     {

  276.         carla_shm_init(shm);

  277.     }

  278. #endif

  279. 

  280.     ~BridgeNonRtClientControl() noexcept override

  281.     {

  282.         // should be cleared by now

  283.         CARLA_SAFE_ASSERT(data == nullptr);

  284. 

  285.         clear();

  286.     }

  287. 

  288.     bool initialize() noexcept

  289.     {

  290.         char tmpFileBase[64];

  291. 

  292.         std::sprintf(tmpFileBase, PLUGIN_BRIDGE_NAMEPREFIX_NON_RT_CLIENT "XXXXXX");

  293. 

  294.         shm = carla_shm_create_temp(tmpFileBase);

  295. 

  296.         CARLA_SAFE_ASSERT_RETURN(carla_is_shm_valid(shm), false);

  297. 

  298.         if (! mapData())

  299.         {

  300.             carla_shm_close(shm);

  301.             carla_shm_init(shm);

  302.             return false;

  303.         }

  304. 

  305.         CARLA_SAFE_ASSERT(data != nullptr);

  306. 

  307.         filename = tmpFileBase;

  308.         return true;

  309.     }

  310. 

  311.     void clear() noexcept

  312.     {

  313.         filename.clear();

  314. 

  315.         if (data != nullptr)

  316.             unmapData();

  317. 

  318.         if (! carla_is_shm_valid(shm))

  319.             return;

  320. 

  321.         carla_shm_close(shm);

  322.         carla_shm_init(shm);

  323.     }

  324. 

  325.     bool mapData() noexcept

  326.     {

  327.         CARLA_SAFE_ASSERT(data == nullptr);

  328. 

  329.         if (carla_shm_map<BridgeNonRtClientData>(shm, data))

  330.         {

  331.             setRingBuffer(&data->ringBuffer, true);

  332.             return true;

  333.         }

  334. 

  335.         return false;

  336.     }

  337. 

  338.     void unmapData() noexcept

  339.     {

  340.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  341. 

  342.         carla_shm_unmap(shm, data);

  343.         data = nullptr;

  344. 

  345.         setRingBuffer(nullptr, false);

  346.     }

  347. 

  348.     void writeOpcode(const PluginBridgeNonRtClientOpcode opcode) noexcept

  349.     {

  350.         writeUInt(static_cast<uint32_t>(opcode));

  351.     }

  352. 

  353.     void waitIfDataIsReachingLimit() noexcept

  354.     {

  355.         if (getAvailableDataSize() < BigStackBuffer::size/4)

  356.             return;

  357. 

  358.         for (int i=50; --i >= 0;)

  359.         {

  360.             if (getAvailableDataSize() >= BigStackBuffer::size*3/4)

  361.             {

  362.                 //carla_stdout("Server waitIfDataIsReachingLimit() reached and waited successfully");

  363.                 writeOpcode(kPluginBridgeNonRtClientPing);

  364.                 commitWrite();

  365.                 return;

  366.             }

  367.             carla_msleep(20);

  368.         }

  369. 

  370.         carla_stderr("Server waitIfDataIsReachingLimit() reached and failed");

  371.     }

  372. 

  373.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtClientControl)

  374. };

  375. 

  376. // -------------------------------------------------------------------------------------------------------------------

  377. 

  378. struct BridgeNonRtServerControl : public CarlaRingBufferControl<HugeStackBuffer> {

  379.     BridgeNonRtServerData* data;

  380.     CarlaString filename;

  381.     carla_shm_t shm;

  382. 

  383.     BridgeNonRtServerControl() noexcept

  384.         : data(nullptr),

  385.           filename()

  386. #ifdef CARLA_PROPER_CPP11_SUPPORT

  387.         , shm(carla_shm_t_INIT) {}

  388. #else

  389.     {

  390.         carla_shm_init(shm);

  391.     }

  392. #endif

  393. 

  394.     ~BridgeNonRtServerControl() noexcept override

  395.     {

  396.         // should be cleared by now

  397.         CARLA_SAFE_ASSERT(data == nullptr);

  398. 

  399.         clear();

  400.     }

  401. 

  402.     bool initialize() noexcept

  403.     {

  404.         char tmpFileBase[64];

  405. 

  406.         std::sprintf(tmpFileBase, PLUGIN_BRIDGE_NAMEPREFIX_NON_RT_SERVER "XXXXXX");

  407. 

  408.         shm = carla_shm_create_temp(tmpFileBase);

  409. 

  410.         if (! carla_is_shm_valid(shm))

  411.             return false;

  412. 

  413.         if (! mapData())

  414.         {

  415.             carla_shm_close(shm);

  416.             carla_shm_init(shm);

  417.             return false;

  418.         }

  419. 

  420.         CARLA_SAFE_ASSERT(data != nullptr);

  421. 

  422.         filename = tmpFileBase;

  423.         return true;

  424.     }

  425. 

  426.     void clear() noexcept

  427.     {

  428.         filename.clear();

  429. 

  430.         if (data != nullptr)

  431.             unmapData();

  432. 

  433.         if (! carla_is_shm_valid(shm))

  434.             return;

  435. 

  436.         carla_shm_close(shm);

  437.         carla_shm_init(shm);

  438.     }

  439. 

  440.     bool mapData() noexcept

  441.     {

  442.         CARLA_SAFE_ASSERT(data == nullptr);

  443. 

  444.         if (carla_shm_map<BridgeNonRtServerData>(shm, data))

  445.         {

  446.             setRingBuffer(&data->ringBuffer, true);

  447.             return true;

  448.         }

  449. 

  450.         return false;

  451.     }

  452. 

  453.     void unmapData() noexcept

  454.     {

  455.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  456. 

  457.         carla_shm_unmap(shm, data);

  458.         data = nullptr;

  459. 

  460.         setRingBuffer(nullptr, false);

  461.     }

  462. 

  463.     PluginBridgeNonRtServerOpcode readOpcode() noexcept

  464.     {

  465.         return static_cast<PluginBridgeNonRtServerOpcode>(readUInt());

  466.     }

  467. 

  468.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtServerControl)

  469. };

  470. 

  471. // -------------------------------------------------------------------------------------------------------------------

  472. 

  473. struct BridgeParamInfo {

  474.     float value;

  475.     CarlaString name;

  476.     CarlaString symbol;

  477.     CarlaString unit;

  478. 

  479.     BridgeParamInfo() noexcept

  480.         : value(0.0f),

  481.           name(),

  482.           symbol(),

  483.           unit() {}

  484. 

  485.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeParamInfo)

  486. };

  487. 

  488. // -------------------------------------------------------------------------------------------------------------------

  489. 

  490. class CarlaPluginBridgeThread : public CarlaThread

  491. {

  492. public:

  493.     CarlaPluginBridgeThread(CarlaEngine* const engine, CarlaPlugin* const plugin) noexcept

  494.         : CarlaThread("CarlaPluginBridgeThread"),

  495.           kEngine(engine),

  496.           kPlugin(plugin),

  497.           fBinary(),

  498.           fLabel(),

  499.           fShmIds(),

  500.           fProcess() {}

  501. 

  502.     void setData(const char* const binary, const char* const label, const char* const shmIds) noexcept

  503.     {

  504.         CARLA_SAFE_ASSERT_RETURN(binary != nullptr && binary[0] != '\0',);

  505.         CARLA_SAFE_ASSERT_RETURN(shmIds != nullptr && shmIds[0] != '\0',);

  506.         CARLA_SAFE_ASSERT(! isThreadRunning());

  507. 

  508.         fBinary = binary;

  509.         fShmIds = shmIds;

  510. 

  511.         if (label != nullptr)

  512.             fLabel = label;

  513.         if (fLabel.isEmpty())

  514.             fLabel = "\"\"";

  515.     }

  516. 

  517.     uintptr_t getProcessPID() const noexcept

  518.     {

  519.         CARLA_SAFE_ASSERT_RETURN(fProcess != nullptr, 0);

  520. 

  521.         return (uintptr_t)fProcess->getPID();

  522.     }

  523. 

  524. protected:

  525.     void run()

  526.     {

  527.         if (fProcess == nullptr)

  528.         {

  529.             fProcess = new ChildProcess();

  530.         }

  531.         else if (fProcess->isRunning())

  532.         {

  533.             carla_stderr("CarlaPluginBridgeThread::run() - already running, giving up...");

  534.         }

  535. 

  536.         String name(kPlugin->getName());

  537.         String filename(kPlugin->getFilename());

  538. 

  539.         if (name.isEmpty())

  540.             name = "(none)";

  541. 

  542.         if (filename.isEmpty())

  543.             filename = "\"\"";

  544. 

  545.         StringArray arguments;

  546. 

  547. #ifndef CARLA_OS_WIN

  548.         // start with "wine" if needed

  549.         if (fBinary.endsWithIgnoreCase(".exe"))

  550.             arguments.add("wine");

  551. #endif

  552. 

  553.         // binary

  554.         arguments.add(fBinary);

  555. 

  556.         // plugin type

  557.         arguments.add(getPluginTypeAsString(kPlugin->getType()));

  558. 

  559.         // filename

  560.         arguments.add(filename);

  561. 

  562.         // label

  563.         arguments.add(fLabel);

  564. 

  565.         // uniqueId

  566.         arguments.add(String(static_cast<juce::int64>(kPlugin->getUniqueId())));

  567. 

  568.         bool started;

  569. 

  570.         {

  571.             char strBuf[STR_MAX+1];

  572.             strBuf[STR_MAX] = '\0';

  573. 

  574.             const EngineOptions& options(kEngine->getOptions());

  575.             const ScopedEngineEnvironmentLocker _seel(kEngine);

  576. 

  577. #ifdef CARLA_OS_LINUX

  578.             const char* const oldPreload(std::getenv("LD_PRELOAD"));

  579. 

  580.             if (oldPreload != nullptr)

  581.                 ::unsetenv("LD_PRELOAD");

  582. #endif

  583. 

  584.             carla_setenv("ENGINE_OPTION_FORCE_STEREO",          bool2str(options.forceStereo));

  585.             carla_setenv("ENGINE_OPTION_PREFER_PLUGIN_BRIDGES", bool2str(options.preferPluginBridges));

  586.             carla_setenv("ENGINE_OPTION_PREFER_UI_BRIDGES",     bool2str(options.preferUiBridges));

  587.             carla_setenv("ENGINE_OPTION_UIS_ALWAYS_ON_TOP",     bool2str(options.uisAlwaysOnTop));

  588. 

  589.             std::snprintf(strBuf, STR_MAX, "%u", options.maxParameters);

  590.             carla_setenv("ENGINE_OPTION_MAX_PARAMETERS", strBuf);

  591. 

  592.             std::snprintf(strBuf, STR_MAX, "%u", options.uiBridgesTimeout);

  593.             carla_setenv("ENGINE_OPTION_UI_BRIDGES_TIMEOUT",strBuf);

  594. 

  595.             if (options.pathLADSPA != nullptr)

  596.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_LADSPA", options.pathLADSPA);

  597.             else

  598.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_LADSPA", "");

  599. 

  600.             if (options.pathDSSI != nullptr)

  601.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_DSSI", options.pathDSSI);

  602.             else

  603.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_DSSI", "");

  604. 

  605.             if (options.pathLV2 != nullptr)

  606.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_LV2", options.pathLV2);

  607.             else

  608.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_LV2", "");

  609. 

  610.             if (options.pathVST2 != nullptr)

  611.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_VST2", options.pathVST2);

  612.             else

  613.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_VST2", "");

  614. 

  615.             if (options.pathVST3 != nullptr)

  616.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_VST3", options.pathVST3);

  617.             else

  618.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_VST3", "");

  619. 

  620.             if (options.pathGIG != nullptr)

  621.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_GIG", options.pathGIG);

  622.             else

  623.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_GIG", "");

  624. 

  625.             if (options.pathSF2 != nullptr)

  626.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_SF2", options.pathSF2);

  627.             else

  628.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_SF2", "");

  629. 

  630.             if (options.pathSFZ != nullptr)

  631.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_SFZ", options.pathSFZ);

  632.             else

  633.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_SFZ", "");

  634. 

  635.             if (options.binaryDir != nullptr)

  636.                 carla_setenv("ENGINE_OPTION_PATH_BINARIES", options.binaryDir);

  637.             else

  638.                 carla_setenv("ENGINE_OPTION_PATH_BINARIES", "");

  639. 

  640.             if (options.resourceDir != nullptr)

  641.                 carla_setenv("ENGINE_OPTION_PATH_RESOURCES", options.resourceDir);

  642.             else

  643.                 carla_setenv("ENGINE_OPTION_PATH_RESOURCES", "");

  644. 

  645.             carla_setenv("ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR", bool2str(options.preventBadBehaviour));

  646. 

  647.             std::snprintf(strBuf, STR_MAX, P_UINTPTR, options.frontendWinId);

  648.             carla_setenv("ENGINE_OPTION_FRONTEND_WIN_ID", strBuf);

  649. 

  650.             carla_setenv("ENGINE_BRIDGE_SHM_IDS", fShmIds.toRawUTF8());

  651.             carla_setenv("WINEDEBUG", "-all");

  652. 

  653.             carla_stdout("starting plugin bridge, command is:\n%s \"%s\" \"%s\" \"%s\" " P_INT64,

  654.                          fBinary.toRawUTF8(), getPluginTypeAsString(kPlugin->getType()), filename.toRawUTF8(), fLabel.toRawUTF8(), kPlugin->getUniqueId());

  655. 

  656.             started = fProcess->start(arguments);

  657. 

  658. #ifdef CARLA_OS_LINUX

  659.             if (oldPreload != nullptr)

  660.                 ::setenv("LD_PRELOAD", oldPreload, 1);

  661. #endif

  662.         }

  663. 

  664.         if (! started)

  665.         {

  666.             carla_stdout("failed!");

  667.             fProcess = nullptr;

  668.             return;

  669.         }

  670. 

  671.         for (; fProcess->isRunning() && ! shouldThreadExit();)

  672.             carla_sleep(1);

  673. 

  674.         // we only get here if bridge crashed or thread asked to exit

  675.         if (fProcess->isRunning() && shouldThreadExit())

  676.         {

  677.             fProcess->waitForProcessToFinish(2000);

  678. 

  679.             if (fProcess->isRunning())

  680.             {

  681.                 carla_stdout("CarlaPluginBridgeThread::run() - bridge refused to close, force kill now");

  682.                 fProcess->kill();

  683.             }

  684.             else

  685.             {

  686.                 carla_stdout("CarlaPluginBridgeThread::run() - bridge auto-closed successfully");

  687.             }

  688.         }

  689.         else

  690.         {

  691.             // forced quit, may have crashed

  692.             if (fProcess->getExitCode() != 0 /*|| fProcess->exitStatus() == QProcess::CrashExit*/)

  693.             {

  694.                 carla_stderr("CarlaPluginBridgeThread::run() - bridge crashed");

  695. 

  696.                 CarlaString errorString("Plugin '" + CarlaString(kPlugin->getName()) + "' has crashed!\n"

  697.                                         "Saving now will lose its current settings.\n"

  698.                                         "Please remove this plugin, and not rely on it from this point.");

  699.                 kEngine->callback(CarlaBackend::ENGINE_CALLBACK_ERROR, kPlugin->getId(), 0, 0, 0.0f, errorString);

  700.             }

  701.             else

  702.                 carla_stderr("CarlaPluginBridgeThread::run() - bridge closed cleanly");

  703.         }

  704. 

  705.         carla_stdout("plugin bridge finished");

  706.         fProcess = nullptr;

  707.     }

  708. 

  709. private:

  710.     CarlaEngine* const kEngine;

  711.     CarlaPlugin* const kPlugin;

  712. 

  713.     String fBinary;

  714.     String fLabel;

  715.     String fShmIds;

  716. 

  717.     ScopedPointer<ChildProcess> fProcess;

  718. 

  719.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginBridgeThread)

  720. };

  721. 

  722. // -------------------------------------------------------------------------------------------------------------------

  723. 

  724. class CarlaPluginBridge : public CarlaPlugin

  725. {

  726. public:

  727.     CarlaPluginBridge(CarlaEngine* const engine, const uint id, const BinaryType btype, const PluginType ptype)

  728.         : CarlaPlugin(engine, id),

  729.           fBinaryType(btype),

  730.           fPluginType(ptype),

  731.           fInitiated(false),

  732.           fInitError(false),

  733.           fSaved(true),

  734.           fTimedOut(false),

  735.           fTimedError(false),

  736.           fProcWaitTime(0),

  737.           fLastPongTime(-1),

  738.           fBridgeBinary(),

  739.           fBridgeThread(engine, this),

  740.           fShmAudioPool(),

  741.           fShmRtClientControl(),

  742.           fShmNonRtClientControl(),

  743.           fShmNonRtServerControl(),

  744.           fInfo(),

  745.           fUniqueId(0),

  746.           fParams(nullptr)

  747.     {

  748.         carla_debug("CarlaPluginBridge::CarlaPluginBridge(%p, %i, %s, %s)", engine, id, BinaryType2Str(btype), PluginType2Str(ptype));

  749. 

  750.         pData->hints |= PLUGIN_IS_BRIDGE;

  751.     }

  752. 

  753.     ~CarlaPluginBridge() override

  754.     {

  755.         carla_debug("CarlaPluginBridge::~CarlaPluginBridge()");

  756. 

  757.         // close UI

  758.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  759.             pData->transientTryCounter = 0;

  760. 

  761.         pData->singleMutex.lock();

  762.         pData->masterMutex.lock();

  763. 

  764.         if (pData->client != nullptr && pData->client->isActive())

  765.             pData->client->deactivate();

  766. 

  767.         if (pData->active)

  768.         {

  769.             deactivate();

  770.             pData->active = false;

  771.         }

  772. 

  773.         if (fBridgeThread.isThreadRunning())

  774.         {

  775.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientQuit);

  776.             fShmNonRtClientControl.commitWrite();

  777. 

  778.             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientQuit);

  779.             fShmRtClientControl.commitWrite();

  780. 

  781.             if (! fTimedOut)

  782.                 waitForClient("stopping", 3000);

  783.         }

  784. 

  785.         fBridgeThread.stopThread(3000);

  786. 

  787.         fShmNonRtServerControl.clear();

  788.         fShmNonRtClientControl.clear();

  789.         fShmRtClientControl.clear();

  790.         fShmAudioPool.clear();

  791. 

  792.         clearBuffers();

  793. 

  794.         fInfo.chunk.clear();

  795.     }

  796. 

  797.     // -------------------------------------------------------------------

  798.     // Information (base)

  799. 

  800.     BinaryType getBinaryType() const noexcept override

  801.     {

  802.         return fBinaryType;

  803.     }

  804. 

  805.     PluginType getType() const noexcept override

  806.     {

  807.         return fPluginType;

  808.     }

  809. 

  810.     PluginCategory getCategory() const noexcept override

  811.     {

  812.         return fInfo.category;

  813.     }

  814. 

  815.     int64_t getUniqueId() const noexcept override

  816.     {

  817.         return fUniqueId;

  818.     }

  819. 

  820.     // -------------------------------------------------------------------

  821.     // Information (count)

  822. 

  823.     uint32_t getMidiInCount() const noexcept override

  824.     {

  825.         return fInfo.mIns;

  826.     }

  827. 

  828.     uint32_t getMidiOutCount() const noexcept override

  829.     {

  830.         return fInfo.mOuts;

  831.     }

  832. 

  833.     // -------------------------------------------------------------------

  834.     // Information (current data)

  835. 

  836.     // TODO - missing getCustomData

  837. 

  838.     std::size_t getChunkData(void** const dataPtr) noexcept override

  839.     {

  840.         CARLA_SAFE_ASSERT_RETURN(pData->options & PLUGIN_OPTION_USE_CHUNKS, 0);

  841.         CARLA_SAFE_ASSERT_RETURN(dataPtr != nullptr, 0);

  842. 

  843.         waitForSaved();

  844. 

  845.         CARLA_SAFE_ASSERT_RETURN(fInfo.chunk.size() > 0, 0);

  846. 

  847.         *dataPtr = fInfo.chunk.data();

  848.         return fInfo.chunk.size();

  849.     }

  850. 

  851.     // -------------------------------------------------------------------

  852.     // Information (per-plugin data)

  853. 

  854.     uint getOptionsAvailable() const noexcept override

  855.     {

  856.         return fInfo.optionsAvailable;

  857.     }

  858. 

  859.     float getParameterValue(const uint32_t parameterId) const noexcept override

  860.     {

  861.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, 0.0f);

  862. 

  863.         return fParams[parameterId].value;

  864.     }

  865. 

  866.     void getLabel(char* const strBuf) const noexcept override

  867.     {

  868.         std::strncpy(strBuf, fInfo.label, STR_MAX);

  869.     }

  870. 

  871.     void getMaker(char* const strBuf) const noexcept override

  872.     {

  873.         std::strncpy(strBuf, fInfo.maker, STR_MAX);

  874.     }

  875. 

  876.     void getCopyright(char* const strBuf) const noexcept override

  877.     {

  878.         std::strncpy(strBuf, fInfo.copyright, STR_MAX);

  879.     }

  880. 

  881.     void getRealName(char* const strBuf) const noexcept override

  882.     {

  883.         std::strncpy(strBuf, fInfo.name, STR_MAX);

  884.     }

  885. 

  886.     void getParameterName(const uint32_t parameterId, char* const strBuf) const noexcept override

  887.     {

  888.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, nullStrBuf(strBuf));

  889. 

  890.         std::strncpy(strBuf, fParams[parameterId].name.buffer(), STR_MAX);

  891.     }

  892. 

  893.     void getParameterSymbol(const uint32_t parameterId, char* const strBuf) const noexcept override

  894.     {

  895.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, nullStrBuf(strBuf));

  896. 

  897.         std::strncpy(strBuf, fParams[parameterId].symbol.buffer(), STR_MAX);

  898.     }

  899. 

  900.     void getParameterUnit(const uint32_t parameterId, char* const strBuf) const noexcept override

  901.     {

  902.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, nullStrBuf(strBuf));

  903. 

  904.         std::strncpy(strBuf, fParams[parameterId].unit.buffer(), STR_MAX);

  905.     }

  906. 

  907.     // -------------------------------------------------------------------

  908.     // Set data (state)

  909. 

  910.     void prepareForSave() noexcept override

  911.     {

  912.         fSaved = false;

  913. 

  914.         {

  915.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  916. 

  917.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPrepareForSave);

  918.             fShmNonRtClientControl.commitWrite();

  919.         }

  920.     }

  921. 

  922.     void waitForSaved()

  923.     {

  924.         if (fSaved)

  925.             return;

  926. 

  927.         // TODO: only wait 1 minute for NI plugins

  928.         const uint32_t timeoutEnd(Time::getMillisecondCounter() + 60*1000); // 60 secs, 1 minute

  929.         const bool needsEngineIdle(pData->engine->getType() != kEngineTypePlugin);

  930. 

  931.         carla_stdout("CarlaPluginBridge::waitForSaved() - now waiting...");

  932. 

  933.         for (; Time::getMillisecondCounter() < timeoutEnd && fBridgeThread.isThreadRunning();)

  934.         {

  935.             pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  936. 

  937.             if (needsEngineIdle)

  938.                 pData->engine->idle();

  939. 

  940.             if (fSaved)

  941.                 break;

  942. 

  943.             carla_msleep(20);

  944.         }

  945. 

  946.         if (! fSaved)

  947.             carla_stderr("CarlaPluginBridge::waitForSaved() - Timeout while requesting save state");

  948.         else

  949.             carla_stdout("CarlaPluginBridge::waitForSaved() - success!");

  950.     }

  951. 

  952.     // -------------------------------------------------------------------

  953.     // Set data (internal stuff)

  954. 

  955.     void setOption(const uint option, const bool yesNo, const bool sendCallback) override

  956.     {

  957.         {

  958.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  959. 

  960.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetOption);

  961.             fShmNonRtClientControl.writeUInt(option);

  962.             fShmNonRtClientControl.writeBool(yesNo);

  963.             fShmNonRtClientControl.commitWrite();

  964.         }

  965. 

  966.         CarlaPlugin::setOption(option, yesNo, sendCallback);

  967.     }

  968. 

  969.     void setCtrlChannel(const int8_t channel, const bool sendOsc, const bool sendCallback) noexcept override

  970.     {

  971.         CARLA_SAFE_ASSERT_RETURN(sendOsc || sendCallback,); // never call this from RT

  972. 

  973.         {

  974.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  975. 

  976.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetCtrlChannel);

  977.             fShmNonRtClientControl.writeShort(channel);

  978.             fShmNonRtClientControl.commitWrite();

  979.         }

  980. 

  981.         CarlaPlugin::setCtrlChannel(channel, sendOsc, sendCallback);

  982.     }

  983. 

  984.     // -------------------------------------------------------------------

  985.     // Set data (plugin-specific stuff)

  986. 

  987.     void setParameterValue(const uint32_t parameterId, const float value, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  988.     {

  989.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback,); // never call this from RT

  990.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  991. 

  992.         const float fixedValue(pData->param.getFixedValue(parameterId, value));

  993.         fParams[parameterId].value = fixedValue;

  994. 

  995.         {

  996.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  997. 

  998.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterValue);

  999.             fShmNonRtClientControl.writeUInt(parameterId);

  1000.             fShmNonRtClientControl.writeFloat(value);

  1001.             fShmNonRtClientControl.commitWrite();

  1002.             fShmNonRtClientControl.waitIfDataIsReachingLimit();

  1003.         }

  1004. 

  1005.         CarlaPlugin::setParameterValue(parameterId, fixedValue, sendGui, sendOsc, sendCallback);

  1006.     }

  1007. 

  1008.     void setParameterMidiChannel(const uint32_t parameterId, const uint8_t channel, const bool sendOsc, const bool sendCallback) noexcept override

  1009.     {

  1010.         CARLA_SAFE_ASSERT_RETURN(sendOsc || sendCallback,); // never call this from RT

  1011.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  1012.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1013. 

  1014.         {

  1015.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1016. 

  1017.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterMidiChannel);

  1018.             fShmNonRtClientControl.writeUInt(parameterId);

  1019.             fShmNonRtClientControl.writeByte(channel);

  1020.             fShmNonRtClientControl.commitWrite();

  1021.         }

  1022. 

  1023.         CarlaPlugin::setParameterMidiChannel(parameterId, channel, sendOsc, sendCallback);

  1024.     }

  1025. 

  1026.     void setParameterMidiCC(const uint32_t parameterId, const int16_t cc, const bool sendOsc, const bool sendCallback) noexcept override

  1027.     {

  1028.         CARLA_SAFE_ASSERT_RETURN(sendOsc || sendCallback,); // never call this from RT

  1029.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  1030.         CARLA_SAFE_ASSERT_RETURN(cc >= -1 && cc < MAX_MIDI_CONTROL,);

  1031. 

  1032.         {

  1033.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1034. 

  1035.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterMidiCC);

  1036.             fShmNonRtClientControl.writeUInt(parameterId);

  1037.             fShmNonRtClientControl.writeShort(cc);

  1038.             fShmNonRtClientControl.commitWrite();

  1039.         }

  1040. 

  1041.         CarlaPlugin::setParameterMidiCC(parameterId, cc, sendOsc, sendCallback);

  1042.     }

  1043. 

  1044.     void setProgram(const int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  1045.     {

  1046.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback,); // never call this from RT

  1047.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->prog.count),);

  1048. 

  1049.         {

  1050.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1051. 

  1052.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetProgram);

  1053.             fShmNonRtClientControl.writeInt(index);

  1054.             fShmNonRtClientControl.commitWrite();

  1055.         }

  1056. 

  1057.         CarlaPlugin::setProgram(index, sendGui, sendOsc, sendCallback);

  1058.     }

  1059. 

  1060.     void setMidiProgram(const int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  1061.     {

  1062.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback,); // never call this from RT

  1063.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->midiprog.count),);

  1064. 

  1065.         {

  1066.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1067. 

  1068.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetMidiProgram);

  1069.             fShmNonRtClientControl.writeInt(index);

  1070.             fShmNonRtClientControl.commitWrite();

  1071.         }

  1072. 

  1073.         CarlaPlugin::setMidiProgram(index, sendGui, sendOsc, sendCallback);

  1074.     }

  1075. 

  1076.     void setCustomData(const char* const type, const char* const key, const char* const value, const bool sendGui) override

  1077.     {

  1078.         CARLA_SAFE_ASSERT_RETURN(type != nullptr && type[0] != '\0',);

  1079.         CARLA_SAFE_ASSERT_RETURN(key != nullptr && key[0] != '\0',);

  1080.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

  1081. 

  1082.         if (std::strcmp(type, CUSTOM_DATA_TYPE_PROPERTY) == 0)

  1083.             return CarlaPlugin::setCustomData(type, key, value, sendGui);

  1084. 

  1085.         if (std::strcmp(type, CUSTOM_DATA_TYPE_STRING) == 0 && std::strcmp(key, "__CarlaPingOnOff__") == 0)

  1086.         {

  1087.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1088. 

  1089.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPingOnOff);

  1090.             fShmNonRtClientControl.writeBool(std::strcmp(value, "true") == 0);

  1091.             fShmNonRtClientControl.commitWrite();

  1092. 

  1093.             carla_stdout("Carla bridge server side, OnOff ping checks => %s", value);

  1094.             return;

  1095.         }

  1096. 

  1097.         const uint32_t typeLen(static_cast<uint32_t>(std::strlen(type)));

  1098.         const uint32_t keyLen(static_cast<uint32_t>(std::strlen(key)));

  1099.         const uint32_t valueLen(static_cast<uint32_t>(std::strlen(value)));

  1100. 

  1101.         {

  1102.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1103. 

  1104.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetCustomData);

  1105. 

  1106.             fShmNonRtClientControl.writeUInt(typeLen);

  1107.             fShmNonRtClientControl.writeCustomData(type, typeLen);

  1108. 

  1109.             fShmNonRtClientControl.writeUInt(keyLen);

  1110.             fShmNonRtClientControl.writeCustomData(key, keyLen);

  1111. 

  1112.             fShmNonRtClientControl.writeUInt(valueLen);

  1113.             fShmNonRtClientControl.writeCustomData(value, valueLen);

  1114. 

  1115.             fShmNonRtClientControl.commitWrite();

  1116.         }

  1117. 

  1118.         CarlaPlugin::setCustomData(type, key, value, sendGui);

  1119.     }

  1120. 

  1121.     void setChunkData(const void* const data, const std::size_t dataSize) override

  1122.     {

  1123.         CARLA_SAFE_ASSERT_RETURN(pData->options & PLUGIN_OPTION_USE_CHUNKS,);

  1124.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  1125.         CARLA_SAFE_ASSERT_RETURN(dataSize > 0,);

  1126. 

  1127.         carla_stdout("Carla bridge server side, setChunkData 001");

  1128. 

  1129.         CarlaString dataBase64(CarlaString::asBase64(data, dataSize));

  1130.         CARLA_SAFE_ASSERT_RETURN(dataBase64.length() > 0,);

  1131. 

  1132.         String filePath(File::getSpecialLocation(File::tempDirectory).getFullPathName());

  1133. 

  1134.         filePath += CARLA_OS_SEP_STR ".CarlaChunk_";

  1135.         filePath += fShmAudioPool.filename.buffer() + 18;

  1136. 

  1137.         if (File(filePath).replaceWithText(dataBase64.buffer()))

  1138.         {

  1139.             carla_stdout("Carla bridge server side, setChunkData 002");

  1140. 

  1141.             const uint32_t ulength(static_cast<uint32_t>(filePath.length()));

  1142. 

  1143.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1144. 

  1145.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetChunkDataFile);

  1146.             fShmNonRtClientControl.writeUInt(ulength);

  1147.             fShmNonRtClientControl.writeCustomData(filePath.toRawUTF8(), ulength);

  1148.             fShmNonRtClientControl.commitWrite();

  1149. 

  1150.             carla_stdout("Carla bridge server side, setChunkData sent");

  1151.         }

  1152. 

  1153.         // save data internally as well

  1154.         fInfo.chunk.resize(dataSize);

  1155.         std::memcpy(fInfo.chunk.data(), data, dataSize);

  1156. 

  1157.         carla_stdout("Carla bridge server side, setChunkData saved locally too");

  1158.     }

  1159. 

  1160.     // -------------------------------------------------------------------

  1161.     // Set ui stuff

  1162. 

  1163.     void showCustomUI(const bool yesNo) override

  1164.     {

  1165.         {

  1166.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1167. 

  1168.             fShmNonRtClientControl.writeOpcode(yesNo ? kPluginBridgeNonRtClientShowUI : kPluginBridgeNonRtClientHideUI);

  1169.             fShmNonRtClientControl.commitWrite();

  1170.         }

  1171. 

  1172. #ifndef BUILD_BRIDGE

  1173.         if (yesNo)

  1174.         {

  1175.             pData->tryTransient();

  1176.         }

  1177.         else

  1178.         {

  1179.             pData->transientTryCounter = 0;

  1180.         }

  1181. #endif

  1182.     }

  1183. 

  1184.     void idle() override

  1185.     {

  1186.         if (fBridgeThread.isThreadRunning())

  1187.         {

  1188.             if (fInitiated && fTimedOut && pData->active)

  1189.                 setActive(false, true, true);

  1190. 

  1191.             {

  1192.                 const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1193. 

  1194.                 fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPing);

  1195.                 fShmNonRtClientControl.commitWrite();

  1196.             }

  1197. 

  1198.             try {

  1199.                 handleNonRtData();

  1200.             } CARLA_SAFE_EXCEPTION("handleNonRtData");

  1201.         }

  1202.         else if (fInitiated)

  1203.         {

  1204.             fTimedOut   = true;

  1205.             fTimedError = true;

  1206.             fInitiated  = false;

  1207.             pData->engine->callback(ENGINE_CALLBACK_PLUGIN_UNAVAILABLE, pData->id, 0, 0, 0.0f, "plugin bridge has been stopped or crashed");

  1208.         }

  1209. 

  1210.         CarlaPlugin::idle();

  1211.     }

  1212. 

  1213.     // -------------------------------------------------------------------

  1214.     // Plugin state

  1215. 

  1216.     void reload() override

  1217.     {

  1218.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr,);

  1219.         carla_debug("CarlaPluginBridge::reload() - start");

  1220. 

  1221.         const EngineProcessMode processMode(pData->engine->getProccessMode());

  1222. 

  1223.         // Safely disable plugin for reload

  1224.         const ScopedDisabler sd(this);

  1225. 

  1226.         // cleanup of previous data

  1227.         pData->audioIn.clear();

  1228.         pData->audioOut.clear();

  1229.         pData->cvIn.clear();

  1230.         pData->cvOut.clear();

  1231.         pData->event.clear();

  1232. 

  1233.         bool needsCtrlIn, needsCtrlOut;

  1234.         needsCtrlIn = needsCtrlOut = false;

  1235. 

  1236.         if (fInfo.aIns > 0)

  1237.         {

  1238.             pData->audioIn.createNew(fInfo.aIns);

  1239.         }

  1240. 

  1241.         if (fInfo.aOuts > 0)

  1242.         {

  1243.             pData->audioOut.createNew(fInfo.aOuts);

  1244.             needsCtrlIn = true;

  1245.         }

  1246. 

  1247.         if (fInfo.cvIns > 0)

  1248.         {

  1249.             pData->cvIn.createNew(fInfo.cvIns);

  1250.         }

  1251. 

  1252.         if (fInfo.cvOuts > 0)

  1253.         {

  1254.             pData->cvOut.createNew(fInfo.cvOuts);

  1255.         }

  1256. 

  1257.         if (fInfo.mIns > 0)

  1258.             needsCtrlIn = true;

  1259. 

  1260.         if (fInfo.mOuts > 0)

  1261.             needsCtrlOut = true;

  1262. 

  1263.         const uint portNameSize(pData->engine->getMaxPortNameSize());

  1264.         CarlaString portName;

  1265. 

  1266.         // Audio Ins

  1267.         for (uint32_t j=0; j < fInfo.aIns; ++j)

  1268.         {

  1269.             portName.clear();

  1270. 

  1271.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1272.             {

  1273.                 portName  = pData->name;

  1274.                 portName += ":";

  1275.             }

  1276. 

  1277.             if (fInfo.aIns > 1)

  1278.             {

  1279.                 portName += "input_";

  1280.                 portName += CarlaString(j+1);

  1281.             }

  1282.             else

  1283.                 portName += "input";

  1284. 

  1285.             portName.truncate(portNameSize);

  1286. 

  1287.             pData->audioIn.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true, j);

  1288.             pData->audioIn.ports[j].rindex = j;

  1289.         }

  1290. 

  1291.         // Audio Outs

  1292.         for (uint32_t j=0; j < fInfo.aOuts; ++j)

  1293.         {

  1294.             portName.clear();

  1295. 

  1296.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1297.             {

  1298.                 portName  = pData->name;

  1299.                 portName += ":";

  1300.             }

  1301. 

  1302.             if (fInfo.aOuts > 1)

  1303.             {

  1304.                 portName += "output_";

  1305.                 portName += CarlaString(j+1);

  1306.             }

  1307.             else

  1308.                 portName += "output";

  1309. 

  1310.             portName.truncate(portNameSize);

  1311. 

  1312.             pData->audioOut.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false, j);

  1313.             pData->audioOut.ports[j].rindex = j;

  1314.         }

  1315. 

  1316.         // TODO - CV

  1317. 

  1318.         if (needsCtrlIn)

  1319.         {

  1320.             portName.clear();

  1321. 

  1322.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1323.             {

  1324.                 portName  = pData->name;

  1325.                 portName += ":";

  1326.             }

  1327. 

  1328.             portName += "event-in";

  1329.             portName.truncate(portNameSize);

  1330. 

  1331.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true, 0);

  1332.         }

  1333. 

  1334.         if (needsCtrlOut)

  1335.         {

  1336.             portName.clear();

  1337. 

  1338.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1339.             {

  1340.                 portName  = pData->name;

  1341.                 portName += ":";

  1342.             }

  1343. 

  1344.             portName += "event-out";

  1345.             portName.truncate(portNameSize);

  1346. 

  1347.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false, 0);

  1348.         }

  1349. 

  1350.         // extra plugin hints

  1351.         pData->extraHints = 0x0;

  1352. 

  1353.         if (fInfo.mIns > 0)

  1354.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  1355. 

  1356.         if (fInfo.mOuts > 0)

  1357.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_OUT;

  1358. 

  1359.         if (fInfo.aIns <= 2 && fInfo.aOuts <= 2 && (fInfo.aIns == fInfo.aOuts || fInfo.aIns == 0 || fInfo.aOuts == 0))

  1360.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1361. 

  1362.         bufferSizeChanged(pData->engine->getBufferSize());

  1363.         reloadPrograms(true);

  1364. 

  1365.         carla_debug("CarlaPluginBridge::reload() - end");

  1366.     }

  1367. 

  1368.     // -------------------------------------------------------------------

  1369.     // Plugin processing

  1370. 

  1371.     void activate() noexcept override

  1372.     {

  1373.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  1374. 

  1375.         {

  1376.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1377. 

  1378.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientActivate);

  1379.             fShmNonRtClientControl.commitWrite();

  1380.         }

  1381. 

  1382.         fTimedOut = false;

  1383. 

  1384.         try {

  1385.             waitForClient("activate", 2000);

  1386.         } CARLA_SAFE_EXCEPTION("activate - waitForClient");

  1387.     }

  1388. 

  1389.     void deactivate() noexcept override

  1390.     {

  1391.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  1392. 

  1393.         {

  1394.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1395. 

  1396.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientDeactivate);

  1397.             fShmNonRtClientControl.commitWrite();

  1398.         }

  1399. 

  1400.         fTimedOut = false;

  1401. 

  1402.         try {

  1403.             waitForClient("deactivate", 2000);

  1404.         } CARLA_SAFE_EXCEPTION("deactivate - waitForClient");

  1405.     }

  1406. 

  1407.     void process(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames) override

  1408.     {

  1409.         // --------------------------------------------------------------------------------------------------------

  1410.         // Check if active

  1411. 

  1412.         if (fTimedOut || fTimedError || ! pData->active)

  1413.         {

  1414.             // disable any output sound

  1415.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1416.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1417.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1418.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1419.             return;

  1420.         }

  1421. 

  1422.         // --------------------------------------------------------------------------------------------------------

  1423.         // Check if needs reset

  1424. 

  1425.         if (pData->needsReset)

  1426.         {

  1427.             // TODO

  1428. 

  1429.             pData->needsReset = false;

  1430.         }

  1431. 

  1432.         // --------------------------------------------------------------------------------------------------------

  1433.         // Event Input

  1434. 

  1435.         if (pData->event.portIn != nullptr)

  1436.         {

  1437.             // ----------------------------------------------------------------------------------------------------

  1438.             // MIDI Input (External)

  1439. 

  1440.             if (pData->extNotes.mutex.tryLock())

  1441.             {

  1442.                 for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin2(); it.valid(); it.next())

  1443.                 {

  1444.                     const ExternalMidiNote& note(it.getValue());

  1445. 

  1446.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1447. 

  1448.                     uint8_t data1, data2, data3;

  1449.                     data1 = uint8_t((note.velo > 0 ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF) | (note.channel & MIDI_CHANNEL_BIT));

  1450.                     data2 = note.note;

  1451.                     data3 = note.velo;

  1452. 

  1453.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1454.                     fShmRtClientControl.writeUInt(0); // time

  1455.                     fShmRtClientControl.writeByte(0); // port

  1456.                     fShmRtClientControl.writeByte(3); // size

  1457.                     fShmRtClientControl.writeByte(data1);

  1458.                     fShmRtClientControl.writeByte(data2);

  1459.                     fShmRtClientControl.writeByte(data3);

  1460.                     fShmRtClientControl.commitWrite();

  1461.                 }

  1462. 

  1463.                 pData->extNotes.data.clear();

  1464.                 pData->extNotes.mutex.unlock();

  1465. 

  1466.             } // End of MIDI Input (External)

  1467. 

  1468.             // ----------------------------------------------------------------------------------------------------

  1469.             // Event Input (System)

  1470. 

  1471. #ifndef BUILD_BRIDGE

  1472.             bool allNotesOffSent = false;

  1473. #endif

  1474. 

  1475.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1476.             {

  1477.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1478. 

  1479.                 // Control change

  1480.                 switch (event.type)

  1481.                 {

  1482.                 case kEngineEventTypeNull:

  1483.                     break;

  1484. 

  1485.                 case kEngineEventTypeControl: {

  1486.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1487. 

  1488.                     switch (ctrlEvent.type)

  1489.                     {

  1490.                     case kEngineControlEventTypeNull:

  1491.                         break;

  1492. 

  1493.                     case kEngineControlEventTypeParameter:

  1494. #ifndef BUILD_BRIDGE

  1495.                         // Control backend stuff

  1496.                         if (event.channel == pData->ctrlChannel)

  1497.                         {

  1498.                             float value;

  1499. 

  1500.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1501.                             {

  1502.                                 value = ctrlEvent.value;

  1503.                                 setDryWet(value, false, false);

  1504.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1505.                                 break;

  1506.                             }

  1507. 

  1508.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1509.                             {

  1510.                                 value = ctrlEvent.value*127.0f/100.0f;

  1511.                                 setVolume(value, false, false);

  1512.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1513.                                 break;

  1514.                             }

  1515. 

  1516.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1517.                             {

  1518.                                 float left, right;

  1519.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1520. 

  1521.                                 if (value < 0.0f)

  1522.                                 {

  1523.                                     left  = -1.0f;

  1524.                                     right = (value*2.0f)+1.0f;

  1525.                                 }

  1526.                                 else if (value > 0.0f)

  1527.                                 {

  1528.                                     left  = (value*2.0f)-1.0f;

  1529.                                     right = 1.0f;

  1530.                                 }

  1531.                                 else

  1532.                                 {

  1533.                                     left  = -1.0f;

  1534.                                     right = 1.0f;

  1535.                                 }

  1536. 

  1537.                                 setBalanceLeft(left, false, false);

  1538.                                 setBalanceRight(right, false, false);

  1539.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1540.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1541.                                 break;

  1542.                             }

  1543.                         }

  1544. #endif

  1545.                         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventParameter);

  1546.                         fShmRtClientControl.writeUInt(event.time);

  1547.                         fShmRtClientControl.writeByte(event.channel);

  1548.                         fShmRtClientControl.writeUShort(event.ctrl.param);

  1549.                         fShmRtClientControl.writeFloat(event.ctrl.value);

  1550.                         fShmRtClientControl.commitWrite();

  1551.                         break;

  1552. 

  1553.                     case kEngineControlEventTypeMidiBank:

  1554.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1555.                         {

  1556.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiBank);

  1557.                             fShmRtClientControl.writeUInt(event.time);

  1558.                             fShmRtClientControl.writeByte(event.channel);

  1559.                             fShmRtClientControl.writeUShort(event.ctrl.param);

  1560.                             fShmRtClientControl.commitWrite();

  1561.                         }

  1562.                         break;

  1563. 

  1564.                     case kEngineControlEventTypeMidiProgram:

  1565.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1566.                         {

  1567.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiProgram);

  1568.                             fShmRtClientControl.writeUInt(event.time);

  1569.                             fShmRtClientControl.writeByte(event.channel);

  1570.                             fShmRtClientControl.writeUShort(event.ctrl.param);

  1571.                             fShmRtClientControl.commitWrite();

  1572.                         }

  1573.                         break;

  1574. 

  1575.                     case kEngineControlEventTypeAllSoundOff:

  1576.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1577.                         {

  1578.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllSoundOff);

  1579.                             fShmRtClientControl.writeUInt(event.time);

  1580.                             fShmRtClientControl.writeByte(event.channel);

  1581.                             fShmRtClientControl.commitWrite();

  1582.                         }

  1583.                         break;

  1584. 

  1585.                     case kEngineControlEventTypeAllNotesOff:

  1586.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1587.                         {

  1588. #ifndef BUILD_BRIDGE

  1589.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1590.                             {

  1591.                                 allNotesOffSent = true;

  1592.                                 sendMidiAllNotesOffToCallback();

  1593.                             }

  1594. #endif

  1595. 

  1596.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllNotesOff);

  1597.                             fShmRtClientControl.writeUInt(event.time);

  1598.                             fShmRtClientControl.writeByte(event.channel);

  1599.                             fShmRtClientControl.commitWrite();

  1600.                         }

  1601.                         break;

  1602.                     } // switch (ctrlEvent.type)

  1603.                     break;

  1604.                 } // case kEngineEventTypeControl

  1605. 

  1606.                 case kEngineEventTypeMidi: {

  1607.                     const EngineMidiEvent& midiEvent(event.midi);

  1608. 

  1609.                     if (midiEvent.size == 0 || midiEvent.size >= MAX_MIDI_VALUE)

  1610.                         continue;

  1611. 

  1612.                     const uint8_t* const midiData(midiEvent.size > EngineMidiEvent::kDataSize ? midiEvent.dataExt : midiEvent.data);

  1613. 

  1614.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiData));

  1615. 

  1616.                     if (status == MIDI_STATUS_CHANNEL_PRESSURE && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1617.                         continue;

  1618.                     if (status == MIDI_STATUS_CONTROL_CHANGE && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1619.                         continue;

  1620.                     if (status == MIDI_STATUS_POLYPHONIC_AFTERTOUCH && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1621.                         continue;

  1622.                     if (status == MIDI_STATUS_PITCH_WHEEL_CONTROL && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1623.                         continue;

  1624. 

  1625.                     // Fix bad note-off

  1626.                     if (status == MIDI_STATUS_NOTE_ON && midiData[2] == 0)

  1627.                         status = MIDI_STATUS_NOTE_OFF;

  1628. 

  1629.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1630.                     fShmRtClientControl.writeUInt(event.time);

  1631.                     fShmRtClientControl.writeByte(midiEvent.port);

  1632.                     fShmRtClientControl.writeByte(midiEvent.size);

  1633. 

  1634.                     fShmRtClientControl.writeByte(uint8_t(midiData[0] | (event.channel & MIDI_CHANNEL_BIT)));

  1635. 

  1636.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1637.                         fShmRtClientControl.writeByte(midiData[j]);

  1638. 

  1639.                     fShmRtClientControl.commitWrite();

  1640. 

  1641.                     if (status == MIDI_STATUS_NOTE_ON)

  1642.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, midiData[1], midiData[2]);

  1643.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1644.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, midiData[1], 0.0f);

  1645.                 } break;

  1646.                 }

  1647.             }

  1648. 

  1649.             pData->postRtEvents.trySplice();

  1650. 

  1651.         } // End of Event Input

  1652. 

  1653.         if (! processSingle(audioIn, audioOut, cvIn, cvOut, frames))

  1654.             return;

  1655. 

  1656.         // --------------------------------------------------------------------------------------------------------

  1657.         // Control and MIDI Output

  1658. 

  1659.         if (pData->event.portOut != nullptr)

  1660.         {

  1661.             float value;

  1662. 

  1663.             for (uint32_t k=0; k < pData->param.count; ++k)

  1664.             {

  1665.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1666.                     continue;

  1667. 

  1668.                 if (pData->param.data[k].midiCC > 0)

  1669.                 {

  1670.                     value = pData->param.ranges[k].getNormalizedValue(fParams[k].value);

  1671.                     pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), value);

  1672.                 }

  1673.             }

  1674. 

  1675.             uint8_t size;

  1676.             uint32_t time;

  1677.             const uint8_t* midiData(fShmRtClientControl.data->midiOut);

  1678. 

  1679.             for (std::size_t read=0; read<kBridgeRtClientDataMidiOutSize;)

  1680.             {

  1681.                 size = *midiData;

  1682. 

  1683.                 if (size == 0)

  1684.                     break;

  1685. 

  1686.                 // advance 8 bits (1 byte)

  1687.                 midiData = midiData + 1;

  1688. 

  1689.                 // get time as 32bit

  1690.                 time = *(const uint32_t*)midiData;

  1691. 

  1692.                 // advance 32 bits (4 bytes)

  1693.                 midiData = midiData + 4;

  1694. 

  1695.                 // store midi data advancing as needed

  1696.                 uint8_t data[size];

  1697. 

  1698.                 for (uint8_t j=0; j<size; ++j)

  1699.                     data[j] = *midiData++;

  1700. 

  1701.                 pData->event.portOut->writeMidiEvent(time, size, data);

  1702. 

  1703.                 read += 1U /* size*/ + 4U /* time */ + size;

  1704.             }

  1705. 

  1706.         } // End of Control and MIDI Output

  1707.     }

  1708. 

  1709.     bool processSingle(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames)

  1710.     {

  1711.         CARLA_SAFE_ASSERT_RETURN(! fTimedError, false);

  1712.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1713. 

  1714.         if (pData->audioIn.count > 0)

  1715.         {

  1716.             CARLA_SAFE_ASSERT_RETURN(audioIn != nullptr, false);

  1717.         }

  1718.         if (pData->audioOut.count > 0)

  1719.         {

  1720.             CARLA_SAFE_ASSERT_RETURN(audioOut != nullptr, false);

  1721.         }

  1722.         if (pData->cvIn.count > 0)

  1723.         {

  1724.             CARLA_SAFE_ASSERT_RETURN(cvIn != nullptr, false);

  1725.         }

  1726.         if (pData->cvOut.count > 0)

  1727.         {

  1728.             CARLA_SAFE_ASSERT_RETURN(cvOut != nullptr, false);

  1729.         }

  1730. 

  1731.         // --------------------------------------------------------------------------------------------------------

  1732.         // Try lock, silence otherwise

  1733. 

  1734.         if (pData->engine->isOffline())

  1735.         {

  1736.             pData->singleMutex.lock();

  1737.         }

  1738.         else if (! pData->singleMutex.tryLock())

  1739.         {

  1740.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1741.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1742.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1743.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1744.             return false;

  1745.         }

  1746. 

  1747.         // --------------------------------------------------------------------------------------------------------

  1748.         // Reset audio buffers

  1749. 

  1750.         for (uint32_t i=0; i < fInfo.aIns; ++i)

  1751.             FloatVectorOperations::copy(fShmAudioPool.data + (i * frames), audioIn[i], static_cast<int>(frames));

  1752. 

  1753.         // --------------------------------------------------------------------------------------------------------

  1754.         // TimeInfo

  1755. 

  1756.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1757.         BridgeTimeInfo& bridgeTimeInfo(fShmRtClientControl.data->timeInfo);

  1758. 

  1759.         bridgeTimeInfo.playing = timeInfo.playing;

  1760.         bridgeTimeInfo.frame   = timeInfo.frame;

  1761.         bridgeTimeInfo.usecs   = timeInfo.usecs;

  1762.         bridgeTimeInfo.valid   = timeInfo.valid;

  1763. 

  1764.         if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1765.         {

  1766.             bridgeTimeInfo.bar  = timeInfo.bbt.bar;

  1767.             bridgeTimeInfo.beat = timeInfo.bbt.beat;

  1768.             bridgeTimeInfo.tick = timeInfo.bbt.tick;

  1769. 

  1770.             bridgeTimeInfo.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1771.             bridgeTimeInfo.beatType    = timeInfo.bbt.beatType;

  1772. 

  1773.             bridgeTimeInfo.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1774.             bridgeTimeInfo.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1775.             bridgeTimeInfo.barStartTick   = timeInfo.bbt.barStartTick;

  1776.         }

  1777. 

  1778.         // --------------------------------------------------------------------------------------------------------

  1779.         // Run plugin

  1780. 

  1781.         {

  1782.             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientProcess);

  1783.             fShmRtClientControl.commitWrite();

  1784.         }

  1785. 

  1786.         waitForClient("process", fProcWaitTime);

  1787. 

  1788.         if (fTimedOut)

  1789.         {

  1790.             pData->singleMutex.unlock();

  1791.             return false;

  1792.         }

  1793. 

  1794.         for (uint32_t i=0; i < fInfo.aOuts; ++i)

  1795.             FloatVectorOperations::copy(audioOut[i], fShmAudioPool.data + ((i + fInfo.aIns) * frames), static_cast<int>(frames));

  1796. 

  1797. #ifndef BUILD_BRIDGE

  1798.         // --------------------------------------------------------------------------------------------------------

  1799.         // Post-processing (dry/wet, volume and balance)

  1800. 

  1801.         {

  1802.             const bool doVolume  = (pData->hints & PLUGIN_CAN_VOLUME) != 0 && carla_isNotEqual(pData->postProc.volume, 1.0f);

  1803.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && carla_isNotEqual(pData->postProc.dryWet, 1.0f);

  1804.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_isEqual(pData->postProc.balanceLeft, -1.0f) && carla_isEqual(pData->postProc.balanceRight, 1.0f));

  1805. 

  1806.             bool isPair;

  1807.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1808. 

  1809.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1810.             {

  1811.                 // Dry/Wet

  1812.                 if (doDryWet)

  1813.                 {

  1814.                     for (uint32_t k=0; k < frames; ++k)

  1815.                     {

  1816.                         bufValue        = audioIn[(pData->audioIn.count == 1) ? 0 : i][k];

  1817.                         audioOut[i][k] = (audioOut[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1818.                     }

  1819.                 }

  1820. 

  1821.                 // Balance

  1822.                 if (doBalance)

  1823.                 {

  1824.                     isPair = (i % 2 == 0);

  1825. 

  1826.                     if (isPair)

  1827.                     {

  1828.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1829.                         FloatVectorOperations::copy(oldBufLeft, audioOut[i], static_cast<int>(frames));

  1830.                     }

  1831. 

  1832.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1833.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1834. 

  1835.                     for (uint32_t k=0; k < frames; ++k)

  1836.                     {

  1837.                         if (isPair)

  1838.                         {

  1839.                             // left

  1840.                             audioOut[i][k]  = oldBufLeft[k]     * (1.0f - balRangeL);

  1841.                             audioOut[i][k] += audioOut[i+1][k] * (1.0f - balRangeR);

  1842.                         }

  1843.                         else

  1844.                         {

  1845.                             // right

  1846.                             audioOut[i][k]  = audioOut[i][k] * balRangeR;

  1847.                             audioOut[i][k] += oldBufLeft[k]   * balRangeL;

  1848.                         }

  1849.                     }

  1850.                 }

  1851. 

  1852.                 // Volume (and buffer copy)

  1853.                 if (doVolume)

  1854.                 {

  1855.                     for (uint32_t k=0; k < frames; ++k)

  1856.                         audioOut[i][k] *= pData->postProc.volume;

  1857.                 }

  1858.             }

  1859. 

  1860.         } // End of Post-processing

  1861. 

  1862. #endif // BUILD_BRIDGE

  1863. 

  1864.         // --------------------------------------------------------------------------------------------------------

  1865. 

  1866.         pData->singleMutex.unlock();

  1867.         return true;

  1868.     }

  1869. 

  1870.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1871.     {

  1872.         resizeAudioPool(newBufferSize);

  1873. 

  1874.         {

  1875.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1876.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  1877.             fShmNonRtClientControl.writeUInt(newBufferSize);

  1878.             fShmNonRtClientControl.commitWrite();

  1879.         }

  1880. 

  1881.         //fProcWaitTime = newBufferSize*1000/pData->engine->getSampleRate();

  1882.         fProcWaitTime = 1000;

  1883. 

  1884.         waitForClient("buffersize", 1000);

  1885.     }

  1886. 

  1887.     void sampleRateChanged(const double newSampleRate) override

  1888.     {

  1889.         {

  1890.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1891.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  1892.             fShmNonRtClientControl.writeDouble(newSampleRate);

  1893.             fShmNonRtClientControl.commitWrite();

  1894.         }

  1895. 

  1896.         //fProcWaitTime = pData->engine->getBufferSize()*1000/newSampleRate;

  1897.         fProcWaitTime = 1000;

  1898. 

  1899.         waitForClient("samplerate", 1000);

  1900.     }

  1901. 

  1902.     void offlineModeChanged(const bool isOffline) override

  1903.     {

  1904.         {

  1905.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1906.             fShmNonRtClientControl.writeOpcode(isOffline ? kPluginBridgeNonRtClientSetOffline : kPluginBridgeNonRtClientSetOnline);

  1907.             fShmNonRtClientControl.commitWrite();

  1908.         }

  1909. 

  1910.         waitForClient("offline", 1000);

  1911.     }

  1912. 

  1913.     // -------------------------------------------------------------------

  1914.     // Plugin buffers

  1915. 

  1916.     void clearBuffers() noexcept override

  1917.     {

  1918.         if (fParams != nullptr)

  1919.         {

  1920.             delete[] fParams;

  1921.             fParams = nullptr;

  1922.         }

  1923. 

  1924.         CarlaPlugin::clearBuffers();

  1925.     }

  1926. 

  1927.     // -------------------------------------------------------------------

  1928.     // Post-poned UI Stuff

  1929. 

  1930.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  1931.     {

  1932.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  1933. 

  1934.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1935. 

  1936.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiParameterChange);

  1937.         fShmNonRtClientControl.writeUInt(index);

  1938.         fShmNonRtClientControl.writeFloat(value);

  1939.         fShmNonRtClientControl.commitWrite();

  1940.     }

  1941. 

  1942.     void uiProgramChange(const uint32_t index) noexcept override

  1943.     {

  1944.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1945. 

  1946.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1947. 

  1948.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiProgramChange);

  1949.         fShmNonRtClientControl.writeUInt(index);

  1950.         fShmNonRtClientControl.commitWrite();

  1951.     }

  1952. 

  1953.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1954.     {

  1955.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1956. 

  1957.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1958. 

  1959.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiMidiProgramChange);

  1960.         fShmNonRtClientControl.writeUInt(index);

  1961.         fShmNonRtClientControl.commitWrite();

  1962.     }

  1963. 

  1964.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1965.     {

  1966.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1967.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1968.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  1969. 

  1970.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1971. 

  1972.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOn);

  1973.         fShmNonRtClientControl.writeByte(channel);

  1974.         fShmNonRtClientControl.writeByte(note);

  1975.         fShmNonRtClientControl.writeByte(velo);

  1976.         fShmNonRtClientControl.commitWrite();

  1977.     }

  1978. 

  1979.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  1980.     {

  1981.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1982.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1983. 

  1984.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1985. 

  1986.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOff);

  1987.         fShmNonRtClientControl.writeByte(channel);

  1988.         fShmNonRtClientControl.writeByte(note);

  1989.         fShmNonRtClientControl.commitWrite();

  1990.     }

  1991. 

  1992.     // -------------------------------------------------------------------

  1993. 

  1994.     void handleNonRtData()

  1995.     {

  1996.         for (; fShmNonRtServerControl.isDataAvailableForReading();)

  1997.         {

  1998.             const PluginBridgeNonRtServerOpcode opcode(fShmNonRtServerControl.readOpcode());

  1999. #ifdef DEBUG

  2000.             if (opcode != kPluginBridgeNonRtServerPong) {

  2001.                 carla_debug("CarlaPluginBridge::handleNonRtData() - got opcode: %s", PluginBridgeNonRtServerOpcode2str(opcode));

  2002.             }

  2003. #endif

  2004.             if (opcode != kPluginBridgeNonRtServerNull && fLastPongTime > 0)

  2005.                 fLastPongTime = Time::currentTimeMillis();

  2006. 

  2007.             switch (opcode)

  2008.             {

  2009.             case kPluginBridgeNonRtServerNull:

  2010.             case kPluginBridgeNonRtServerPong:

  2011.                 break;

  2012. 

  2013.             case kPluginBridgeNonRtServerPluginInfo1: {

  2014.                 // uint/category, uint/hints, uint/optionsAvailable, uint/optionsEnabled, long/uniqueId

  2015.                 const uint32_t category = fShmNonRtServerControl.readUInt();

  2016.                 const uint32_t hints    = fShmNonRtServerControl.readUInt();

  2017.                 const uint32_t optionAv = fShmNonRtServerControl.readUInt();

  2018.                 const uint32_t optionEn = fShmNonRtServerControl.readUInt();

  2019.                 const  int64_t uniqueId = fShmNonRtServerControl.readLong();

  2020. 

  2021.                 CARLA_SAFE_ASSERT_INT2(fUniqueId == uniqueId, fUniqueId, uniqueId);

  2022. 

  2023.                 pData->hints   = hints | PLUGIN_IS_BRIDGE;

  2024.                 pData->options = optionEn;

  2025. 

  2026.                 fInfo.category = static_cast<PluginCategory>(category);

  2027.                 fInfo.optionsAvailable = optionAv;

  2028.             }   break;

  2029. 

  2030.             case kPluginBridgeNonRtServerPluginInfo2: {

  2031.                 // uint/size, str[] (realName), uint/size, str[] (label), uint/size, str[] (maker), uint/size, str[] (copyright)

  2032. 

  2033.                 // realName

  2034.                 const uint32_t realNameSize(fShmNonRtServerControl.readUInt());

  2035.                 char realName[realNameSize+1];

  2036.                 carla_zeroChars(realName, realNameSize+1);

  2037.                 fShmNonRtServerControl.readCustomData(realName, realNameSize);

  2038. 

  2039.                 // label

  2040.                 const uint32_t labelSize(fShmNonRtServerControl.readUInt());

  2041.                 char label[labelSize+1];

  2042.                 carla_zeroChars(label, labelSize+1);

  2043.                 fShmNonRtServerControl.readCustomData(label, labelSize);

  2044. 

  2045.                 // maker

  2046.                 const uint32_t makerSize(fShmNonRtServerControl.readUInt());

  2047.                 char maker[makerSize+1];

  2048.                 carla_zeroChars(maker, makerSize+1);

  2049.                 fShmNonRtServerControl.readCustomData(maker, makerSize);

  2050. 

  2051.                 // copyright

  2052.                 const uint32_t copyrightSize(fShmNonRtServerControl.readUInt());

  2053.                 char copyright[copyrightSize+1];

  2054.                 carla_zeroChars(copyright, copyrightSize+1);

  2055.                 fShmNonRtServerControl.readCustomData(copyright, copyrightSize);

  2056. 

  2057.                 fInfo.name  = realName;

  2058.                 fInfo.label = label;

  2059.                 fInfo.maker = maker;

  2060.                 fInfo.copyright = copyright;

  2061. 

  2062.                 if (pData->name == nullptr)

  2063.                     pData->name = pData->engine->getUniquePluginName(realName);

  2064.             }   break;

  2065. 

  2066.             case kPluginBridgeNonRtServerAudioCount: {

  2067.                 // uint/ins, uint/outs

  2068.                 fInfo.aIns  = fShmNonRtServerControl.readUInt();

  2069.                 fInfo.aOuts = fShmNonRtServerControl.readUInt();

  2070.             }   break;

  2071. 

  2072.             case kPluginBridgeNonRtServerMidiCount: {

  2073.                 // uint/ins, uint/outs

  2074.                 fInfo.mIns  = fShmNonRtServerControl.readUInt();

  2075.                 fInfo.mOuts = fShmNonRtServerControl.readUInt();

  2076.             }   break;

  2077. 

  2078.             case kPluginBridgeNonRtServerParameterCount: {

  2079.                 // uint/count

  2080.                 const uint32_t count = fShmNonRtServerControl.readUInt();

  2081. 

  2082.                 // delete old data

  2083.                 pData->param.clear();

  2084. 

  2085.                 if (fParams != nullptr)

  2086.                 {

  2087.                     delete[] fParams;

  2088.                     fParams = nullptr;

  2089.                 }

  2090. 

  2091.                 if (count > 0)

  2092.                 {

  2093.                     pData->param.createNew(count, false);

  2094.                     fParams = new BridgeParamInfo[count];

  2095. 

  2096.                     // we might not receive all parameter data, so ensure range max is not 0

  2097.                     for (uint32_t i=0; i<count; ++i)

  2098.                     {

  2099.                         pData->param.ranges[i].def = 0.0f;

  2100.                         pData->param.ranges[i].min = 0.0f;

  2101.                         pData->param.ranges[i].max = 1.0f;

  2102.                         pData->param.ranges[i].step = 0.001f;

  2103.                         pData->param.ranges[i].stepSmall = 0.0001f;

  2104.                         pData->param.ranges[i].stepLarge = 0.1f;

  2105.                     }

  2106.                 }

  2107.             }   break;

  2108. 

  2109.             case kPluginBridgeNonRtServerProgramCount: {

  2110.                 // uint/count

  2111.                 pData->prog.clear();

  2112. 

  2113.                 if (const uint32_t count = fShmNonRtServerControl.readUInt())

  2114.                     pData->prog.createNew(static_cast<uint32_t>(count));

  2115. 

  2116.             }   break;

  2117. 

  2118.             case kPluginBridgeNonRtServerMidiProgramCount: {

  2119.                 // uint/count

  2120.                 pData->midiprog.clear();

  2121. 

  2122.                 if (const uint32_t count = fShmNonRtServerControl.readUInt())

  2123.                     pData->midiprog.createNew(static_cast<uint32_t>(count));

  2124. 

  2125.             }   break;

  2126. 

  2127.             case kPluginBridgeNonRtServerParameterData1: {

  2128.                 // uint/index, int/rindex, uint/type, uint/hints, int/cc

  2129.                 const uint32_t index  = fShmNonRtServerControl.readUInt();

  2130.                 const  int32_t rindex = fShmNonRtServerControl.readInt();

  2131.                 const uint32_t type   = fShmNonRtServerControl.readUInt();

  2132.                 const uint32_t hints  = fShmNonRtServerControl.readUInt();

  2133.                 const  int16_t midiCC = fShmNonRtServerControl.readShort();

  2134. 

  2135.                 CARLA_SAFE_ASSERT_BREAK(midiCC >= -1 && midiCC < MAX_MIDI_CONTROL);

  2136.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2137. 

  2138.                 if (index < pData->param.count)

  2139.                 {

  2140.                     pData->param.data[index].type   = static_cast<ParameterType>(type);

  2141.                     pData->param.data[index].index  = static_cast<int32_t>(index);

  2142.                     pData->param.data[index].rindex = rindex;

  2143.                     pData->param.data[index].hints  = hints;

  2144.                     pData->param.data[index].midiCC = midiCC;

  2145.                 }

  2146.             }   break;

  2147. 

  2148.             case kPluginBridgeNonRtServerParameterData2: {

  2149.                 // uint/index, uint/size, str[] (name), uint/size, str[] (unit)

  2150.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2151. 

  2152.                 // name

  2153.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2154.                 char name[nameSize+1];

  2155.                 carla_zeroChars(name, nameSize+1);

  2156.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2157. 

  2158.                 // symbol

  2159.                 const uint32_t symbolSize(fShmNonRtServerControl.readUInt());

  2160.                 char symbol[symbolSize+1];

  2161.                 carla_zeroChars(symbol, symbolSize+1);

  2162.                 fShmNonRtServerControl.readCustomData(symbol, symbolSize);

  2163. 

  2164.                 // unit

  2165.                 const uint32_t unitSize(fShmNonRtServerControl.readUInt());

  2166.                 char unit[unitSize+1];

  2167.                 carla_zeroChars(unit, unitSize+1);

  2168.                 fShmNonRtServerControl.readCustomData(unit, unitSize);

  2169. 

  2170.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2171. 

  2172.                 if (index < pData->param.count)

  2173.                 {

  2174.                     fParams[index].name   = name;

  2175.                     fParams[index].symbol = symbol;

  2176.                     fParams[index].unit   = unit;

  2177.                 }

  2178.             }   break;

  2179. 

  2180.             case kPluginBridgeNonRtServerParameterRanges: {

  2181.                 // uint/index, float/def, float/min, float/max, float/step, float/stepSmall, float/stepLarge

  2182.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2183.                 const float def      = fShmNonRtServerControl.readFloat();

  2184.                 const float min      = fShmNonRtServerControl.readFloat();

  2185.                 const float max      = fShmNonRtServerControl.readFloat();

  2186.                 const float step      = fShmNonRtServerControl.readFloat();

  2187.                 const float stepSmall = fShmNonRtServerControl.readFloat();

  2188.                 const float stepLarge = fShmNonRtServerControl.readFloat();

  2189. 

  2190.                 CARLA_SAFE_ASSERT_BREAK(min < max);

  2191.                 CARLA_SAFE_ASSERT_BREAK(def >= min);

  2192.                 CARLA_SAFE_ASSERT_BREAK(def <= max);

  2193.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2194. 

  2195.                 if (index < pData->param.count)

  2196.                 {

  2197.                     pData->param.ranges[index].def = def;

  2198.                     pData->param.ranges[index].min = min;

  2199.                     pData->param.ranges[index].max = max;

  2200.                     pData->param.ranges[index].step      = step;

  2201.                     pData->param.ranges[index].stepSmall = stepSmall;

  2202.                     pData->param.ranges[index].stepLarge = stepLarge;

  2203.                 }

  2204.             }   break;

  2205. 

  2206.             case kPluginBridgeNonRtServerParameterValue: {

  2207.                 // uint/index, float/value

  2208.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2209.                 const float    value = fShmNonRtServerControl.readFloat();

  2210. 

  2211.                 if (index < pData->param.count)

  2212.                 {

  2213.                     const float fixedValue(pData->param.getFixedValue(index, value));

  2214.                     fParams[index].value = fixedValue;

  2215. 

  2216.                     CarlaPlugin::setParameterValue(index, fixedValue, false, true, true);

  2217.                 }

  2218.             }   break;

  2219. 

  2220.             case kPluginBridgeNonRtServerParameterValue2: {

  2221.                 // uint/index, float/value

  2222.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2223.                 const float    value = fShmNonRtServerControl.readFloat();

  2224. 

  2225.                 if (index < pData->param.count)

  2226.                 {

  2227.                     const float fixedValue(pData->param.getFixedValue(index, value));

  2228.                     fParams[index].value = fixedValue;

  2229.                 }

  2230.             }   break;

  2231. 

  2232.             case kPluginBridgeNonRtServerDefaultValue: {

  2233.                 // uint/index, float/value

  2234.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2235.                 const float    value = fShmNonRtServerControl.readFloat();

  2236. 

  2237.                 if (index < pData->param.count)

  2238.                     pData->param.ranges[index].def = value;

  2239.             }   break;

  2240. 

  2241.             case kPluginBridgeNonRtServerCurrentProgram: {

  2242.                 // int/index

  2243.                 const int32_t index = fShmNonRtServerControl.readInt();

  2244. 

  2245.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

  2246.                 CARLA_SAFE_ASSERT_INT2(index < static_cast<int32_t>(pData->prog.count), index, pData->prog.count);

  2247. 

  2248.                 CarlaPlugin::setProgram(index, false, true, true);

  2249.             }   break;

  2250. 

  2251.             case kPluginBridgeNonRtServerCurrentMidiProgram: {

  2252.                 // int/index

  2253.                 const int32_t index = fShmNonRtServerControl.readInt();

  2254. 

  2255.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

  2256.                 CARLA_SAFE_ASSERT_INT2(index < static_cast<int32_t>(pData->midiprog.count), index, pData->midiprog.count);

  2257. 

  2258.                 CarlaPlugin::setMidiProgram(index, false, true, true);

  2259.             }   break;

  2260. 

  2261.             case kPluginBridgeNonRtServerProgramName: {

  2262.                 // uint/index, uint/size, str[] (name)

  2263.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2264. 

  2265.                 // name

  2266.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2267.                 char name[nameSize+1];

  2268.                 carla_zeroChars(name, nameSize+1);

  2269.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2270. 

  2271.                 CARLA_SAFE_ASSERT_INT2(index < pData->prog.count, index, pData->prog.count);

  2272. 

  2273.                 if (index < pData->prog.count)

  2274.                 {

  2275.                     if (pData->prog.names[index] != nullptr)

  2276.                         delete[] pData->prog.names[index];

  2277.                     pData->prog.names[index] = carla_strdup(name);

  2278.                 }

  2279.             }   break;

  2280. 

  2281.             case kPluginBridgeNonRtServerMidiProgramData: {

  2282.                 // uint/index, uint/bank, uint/program, uint/size, str[] (name)

  2283.                 const uint32_t index   = fShmNonRtServerControl.readUInt();

  2284.                 const uint32_t bank    = fShmNonRtServerControl.readUInt();

  2285.                 const uint32_t program = fShmNonRtServerControl.readUInt();

  2286. 

  2287.                 // name

  2288.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2289.                 char name[nameSize+1];

  2290.                 carla_zeroChars(name, nameSize+1);

  2291.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2292. 

  2293.                 CARLA_SAFE_ASSERT_INT2(index < pData->midiprog.count, index, pData->midiprog.count);

  2294. 

  2295.                 if (index < pData->midiprog.count)

  2296.                 {

  2297.                     if (pData->midiprog.data[index].name != nullptr)

  2298.                         delete[] pData->midiprog.data[index].name;

  2299.                     pData->midiprog.data[index].bank    = bank;

  2300.                     pData->midiprog.data[index].program = program;

  2301.                     pData->midiprog.data[index].name    = carla_strdup(name);

  2302.                 }

  2303.             }   break;

  2304. 

  2305.             case kPluginBridgeNonRtServerSetCustomData: {

  2306.                 // uint/size, str[], uint/size, str[], uint/size, str[]

  2307. 

  2308.                 // type

  2309.                 const uint32_t typeSize(fShmNonRtServerControl.readUInt());

  2310.                 char type[typeSize+1];

  2311.                 carla_zeroChars(type, typeSize+1);

  2312.                 fShmNonRtServerControl.readCustomData(type, typeSize);

  2313. 

  2314.                 // key

  2315.                 const uint32_t keySize(fShmNonRtServerControl.readUInt());

  2316.                 char key[keySize+1];

  2317.                 carla_zeroChars(key, keySize+1);

  2318.                 fShmNonRtServerControl.readCustomData(key, keySize);

  2319. 

  2320.                 // value

  2321.                 const uint32_t valueSize(fShmNonRtServerControl.readUInt());

  2322.                 char value[valueSize+1];

  2323.                 carla_zeroChars(value, valueSize+1);

  2324.                 fShmNonRtServerControl.readCustomData(value, valueSize);

  2325. 

  2326.                 CarlaPlugin::setCustomData(type, key, value, false);

  2327.             }   break;

  2328. 

  2329.             case kPluginBridgeNonRtServerSetChunkDataFile: {

  2330.                 // uint/size, str[] (filename)

  2331. 

  2332.                 // chunkFilePath

  2333.                 const uint32_t chunkFilePathSize(fShmNonRtServerControl.readUInt());

  2334.                 char chunkFilePath[chunkFilePathSize+1];

  2335.                 carla_zeroChars(chunkFilePath, chunkFilePathSize+1);

  2336.                 fShmNonRtServerControl.readCustomData(chunkFilePath, chunkFilePathSize);

  2337. 

  2338.                 String realChunkFilePath(chunkFilePath);

  2339.                 carla_stdout("chunk save path BEFORE => %s", realChunkFilePath.toRawUTF8());

  2340. 

  2341. #ifndef CARLA_OS_WIN

  2342.                 // Using Wine, fix temp dir

  2343.                 if (fBinaryType == BINARY_WIN32 || fBinaryType == BINARY_WIN64)

  2344.                 {

  2345.                     // Get WINEPREFIX

  2346.                     String wineDir;

  2347.                     if (const char* const WINEPREFIX = getenv("WINEPREFIX"))

  2348.                         wineDir = String(WINEPREFIX);

  2349.                     else

  2350.                         wineDir = File::getSpecialLocation(File::userHomeDirectory).getFullPathName() + "/.wine";

  2351. 

  2352.                     const StringArray driveLetterSplit(StringArray::fromTokens(realChunkFilePath, ":/", ""));

  2353. 

  2354.                     realChunkFilePath  = wineDir;

  2355.                     realChunkFilePath += "/drive_";

  2356.                     realChunkFilePath += driveLetterSplit[0].toLowerCase();

  2357.                     realChunkFilePath += "/";

  2358.                     realChunkFilePath += driveLetterSplit[1];

  2359. 

  2360.                     realChunkFilePath  = realChunkFilePath.replace("\\", "/");

  2361.                     carla_stdout("chunk save path AFTER => %s", realChunkFilePath.toRawUTF8());

  2362.                 }

  2363. #endif

  2364. 

  2365.                 File chunkFile(realChunkFilePath);

  2366. 

  2367.                 if (chunkFile.existsAsFile())

  2368.                 {

  2369.                     fInfo.chunk = carla_getChunkFromBase64String(chunkFile.loadFileAsString().toRawUTF8());

  2370.                     chunkFile.deleteFile();

  2371.                     carla_stderr("chunk data final");

  2372.                 }

  2373.             }   break;

  2374. 

  2375.             case kPluginBridgeNonRtServerSetLatency: {

  2376.                 // uint

  2377.             }   break;

  2378. 

  2379.             case kPluginBridgeNonRtServerReady:

  2380.                 fInitiated = true;

  2381.                 break;

  2382. 

  2383.             case kPluginBridgeNonRtServerSaved:

  2384.                 fSaved = true;

  2385.                 break;

  2386. 

  2387.             case kPluginBridgeNonRtServerUiClosed:

  2388.                 pData->transientTryCounter = 0;

  2389.                 pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2390.                 break;

  2391. 

  2392.             case kPluginBridgeNonRtServerError: {

  2393.                 // error

  2394.                 const uint32_t errorSize(fShmNonRtServerControl.readUInt());

  2395.                 char error[errorSize+1];

  2396.                 carla_zeroChars(error, errorSize+1);

  2397.                 fShmNonRtServerControl.readCustomData(error, errorSize);

  2398. 

  2399.                 if (fInitiated)

  2400.                 {

  2401.                     pData->engine->callback(ENGINE_CALLBACK_ERROR, pData->id, 0, 0, 0.0f, error);

  2402. 

  2403.                     // just in case

  2404.                     pData->engine->setLastError(error);

  2405.                     fInitError = true;

  2406.                 }

  2407.                 else

  2408.                 {

  2409.                     pData->engine->setLastError(error);

  2410.                     fInitError = true;

  2411.                     fInitiated = true;

  2412.                 }

  2413.             }   break;

  2414.             }

  2415.         }

  2416.     }

  2417. 

  2418.     // -------------------------------------------------------------------

  2419. 

  2420.     uintptr_t getUiBridgeProcessId() const noexcept override

  2421.     {

  2422.         return fBridgeThread.getProcessPID();

  2423.     }

  2424. 

  2425.     const void* getExtraStuff() const noexcept override

  2426.     {

  2427.         return fBridgeBinary.isNotEmpty() ? fBridgeBinary.buffer() : nullptr;

  2428.     }

  2429. 

  2430.     // -------------------------------------------------------------------

  2431. 

  2432.     bool init(const char* const filename, const char* const name, const char* const label, const int64_t uniqueId, const char* const bridgeBinary)

  2433.     {

  2434.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2435. 

  2436.         // ---------------------------------------------------------------

  2437.         // first checks

  2438. 

  2439.         if (pData->client != nullptr)

  2440.         {

  2441.             pData->engine->setLastError("Plugin client is already registered");

  2442.             return false;

  2443.         }

  2444. 

  2445.         if (bridgeBinary == nullptr || bridgeBinary[0] == '\0')

  2446.         {

  2447.             pData->engine->setLastError("null bridge binary");

  2448.             return false;

  2449.         }

  2450. 

  2451.         // ---------------------------------------------------------------

  2452.         // set info

  2453. 

  2454.         if (name != nullptr && name[0] != '\0')

  2455.             pData->name = pData->engine->getUniquePluginName(name);

  2456. 

  2457.         if (filename != nullptr && filename[0] != '\0')

  2458.             pData->filename = carla_strdup(filename);

  2459.         else

  2460.             pData->filename = carla_strdup("");

  2461. 

  2462.         fUniqueId     = uniqueId;

  2463.         fBridgeBinary = bridgeBinary;

  2464. 

  2465.         std::srand(static_cast<uint>(std::time(nullptr)));

  2466. 

  2467.         // ---------------------------------------------------------------

  2468.         // init sem/shm

  2469. 

  2470.         if (! fShmAudioPool.initialize())

  2471.         {

  2472.             carla_stdout("Failed to initialize shared memory audio pool");

  2473.             return false;

  2474.         }

  2475. 

  2476.         if (! fShmRtClientControl.initialize())

  2477.         {

  2478.             carla_stdout("Failed to initialize RT client control");

  2479.             fShmAudioPool.clear();

  2480.             return false;

  2481.         }

  2482. 

  2483.         if (! fShmNonRtClientControl.initialize())

  2484.         {

  2485.             carla_stdout("Failed to initialize Non-RT client control");

  2486.             fShmRtClientControl.clear();

  2487.             fShmAudioPool.clear();

  2488.             return false;

  2489.         }

  2490. 

  2491.         if (! fShmNonRtServerControl.initialize())

  2492.         {

  2493.             carla_stdout("Failed to initialize Non-RT server control");

  2494.             fShmNonRtClientControl.clear();

  2495.             fShmRtClientControl.clear();

  2496.             fShmAudioPool.clear();

  2497.             return false;

  2498.         }

  2499. 

  2500.         // ---------------------------------------------------------------

  2501. 

  2502.         carla_stdout("Carla Server Info:");

  2503.         carla_stdout("  sizeof(BridgeRtClientData):    " P_SIZE, sizeof(BridgeRtClientData));

  2504.         carla_stdout("  sizeof(BridgeNonRtClientData): " P_SIZE, sizeof(BridgeNonRtClientData));

  2505.         carla_stdout("  sizeof(BridgeNonRtServerData): " P_SIZE, sizeof(BridgeNonRtServerData));

  2506. 

  2507.         // initial values

  2508.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientNull);

  2509.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeRtClientData)));

  2510.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeNonRtClientData)));

  2511.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeNonRtServerData)));

  2512. 

  2513.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  2514.         fShmNonRtClientControl.writeUInt(pData->engine->getBufferSize());

  2515. 

  2516.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  2517.         fShmNonRtClientControl.writeDouble(pData->engine->getSampleRate());

  2518. 

  2519.         fShmNonRtClientControl.commitWrite();

  2520. 

  2521.         // testing dummy message

  2522.         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientNull);

  2523.         fShmRtClientControl.commitWrite();

  2524. 

  2525.         // init bridge thread

  2526.         {

  2527.             char shmIdsStr[6*4+1];

  2528.             carla_zeroChars(shmIdsStr, 6*4+1);

  2529. 

  2530.             std::strncpy(shmIdsStr+6*0, &fShmAudioPool.filename[fShmAudioPool.filename.length()-6], 6);

  2531.             std::strncpy(shmIdsStr+6*1, &fShmRtClientControl.filename[fShmRtClientControl.filename.length()-6], 6);

  2532.             std::strncpy(shmIdsStr+6*2, &fShmNonRtClientControl.filename[fShmNonRtClientControl.filename.length()-6], 6);

  2533.             std::strncpy(shmIdsStr+6*3, &fShmNonRtServerControl.filename[fShmNonRtServerControl.filename.length()-6], 6);

  2534. 

  2535.             fBridgeThread.setData(bridgeBinary, label, shmIdsStr);

  2536.             fBridgeThread.startThread();

  2537.         }

  2538. 

  2539.         fInitiated = false;

  2540.         fLastPongTime = Time::currentTimeMillis();

  2541.         CARLA_SAFE_ASSERT(fLastPongTime > 0);

  2542. 

  2543.         static bool sFirstInit = true;

  2544. 

  2545.         int64_t timeoutEnd = 5000;

  2546. 

  2547.         if (sFirstInit)

  2548.             timeoutEnd *= 2;

  2549. #ifndef CARLA_OS_WIN

  2550.          if (fBinaryType == BINARY_WIN32 || fBinaryType == BINARY_WIN64)

  2551.             timeoutEnd *= 2;

  2552. #endif

  2553.         sFirstInit = false;

  2554. 

  2555.         const bool needsEngineIdle = pData->engine->getType() != kEngineTypePlugin;

  2556. 

  2557.         for (; Time::currentTimeMillis() < fLastPongTime + timeoutEnd && fBridgeThread.isThreadRunning();)

  2558.         {

  2559.             pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2560. 

  2561.             if (needsEngineIdle)

  2562.                 pData->engine->idle();

  2563. 

  2564.             idle();

  2565. 

  2566.             if (fInitiated)

  2567.                 break;

  2568. 

  2569.             carla_msleep(20);

  2570.         }

  2571. 

  2572.         fLastPongTime = -1;

  2573. 

  2574.         if (fInitError || ! fInitiated)

  2575.         {

  2576.             fBridgeThread.stopThread(6000);

  2577. 

  2578.             if (! fInitError)

  2579.                 pData->engine->setLastError("Timeout while waiting for a response from plugin-bridge\n(or the plugin crashed on initialization?)");

  2580. 

  2581.             return false;

  2582.         }

  2583. 

  2584.         // ---------------------------------------------------------------

  2585.         // register client

  2586. 

  2587.         if (pData->name == nullptr)

  2588.         {

  2589.             if (label != nullptr && label[0] != '\0')

  2590.                 pData->name = pData->engine->getUniquePluginName(label);

  2591.             else

  2592.                 pData->name = pData->engine->getUniquePluginName("unknown");

  2593.         }

  2594. 

  2595.         pData->client = pData->engine->addClient(this);

  2596. 

  2597.         if (pData->client == nullptr || ! pData->client->isOk())

  2598.         {

  2599.             pData->engine->setLastError("Failed to register plugin client");

  2600.             return false;

  2601.         }

  2602. 

  2603.         return true;

  2604.     }

  2605. 

  2606. private:

  2607.     const BinaryType fBinaryType;

  2608.     const PluginType fPluginType;

  2609. 

  2610.     bool fInitiated;

  2611.     bool fInitError;

  2612.     bool fSaved;

  2613.     bool fTimedOut;

  2614.     bool fTimedError;

  2615.     uint fProcWaitTime;

  2616. 

  2617.     int64_t fLastPongTime;

  2618. 

  2619.     CarlaString             fBridgeBinary;

  2620.     CarlaPluginBridgeThread fBridgeThread;

  2621. 

  2622.     BridgeAudioPool          fShmAudioPool;

  2623.     BridgeRtClientControl    fShmRtClientControl;

  2624.     BridgeNonRtClientControl fShmNonRtClientControl;

  2625.     BridgeNonRtServerControl fShmNonRtServerControl;

  2626. 

  2627.     struct Info {

  2628.         uint32_t aIns, aOuts;

  2629.         uint32_t cvIns, cvOuts;

  2630.         uint32_t mIns, mOuts;

  2631.         PluginCategory category;

  2632.         uint optionsAvailable;

  2633.         CarlaString name;

  2634.         CarlaString label;

  2635.         CarlaString maker;

  2636.         CarlaString copyright;

  2637.         std::vector<uint8_t> chunk;

  2638. 

  2639.         Info()

  2640.             : aIns(0),

  2641.               aOuts(0),

  2642.               cvIns(0),

  2643.               cvOuts(0),

  2644.               mIns(0),

  2645.               mOuts(0),

  2646.               category(PLUGIN_CATEGORY_NONE),

  2647.               optionsAvailable(0),

  2648.               name(),

  2649.               label(),

  2650.               maker(),

  2651.               copyright(),

  2652.               chunk() {}

  2653.     } fInfo;

  2654. 

  2655.     int64_t fUniqueId;

  2656. 

  2657.     BridgeParamInfo* fParams;

  2658. 

  2659.     void resizeAudioPool(const uint32_t bufferSize)

  2660.     {

  2661.         fShmAudioPool.resize(bufferSize, fInfo.aIns+fInfo.aOuts, fInfo.cvIns+fInfo.cvOuts);

  2662. 

  2663.         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientSetAudioPool);

  2664.         fShmRtClientControl.writeULong(static_cast<uint64_t>(fShmAudioPool.size));

  2665.         fShmRtClientControl.commitWrite();

  2666. 

  2667.         waitForClient("resize-pool", 5000);

  2668.     }

  2669. 

  2670.     void waitForClient(const char* const action, const uint msecs)

  2671.     {

  2672.         CARLA_SAFE_ASSERT_RETURN(! fTimedOut,);

  2673.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  2674. 

  2675.         if (fShmRtClientControl.waitForClient(msecs))

  2676.             return;

  2677. 

  2678.         fTimedOut = true;

  2679.         carla_stderr("waitForClient(%s) timed out", action);

  2680.     }

  2681. 

  2682.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginBridge)

  2683. };

  2684. 

  2685. CARLA_BACKEND_END_NAMESPACE

  2686. 

  2687. // -------------------------------------------------------------------------------------------------------------------

  2688. 

  2689. CARLA_BACKEND_START_NAMESPACE

  2690. 

  2691. CarlaPlugin* CarlaPlugin::newBridge(const Initializer& init, BinaryType btype, PluginType ptype, const char* const bridgeBinary)

  2692. {

  2693.     carla_debug("CarlaPlugin::newBridge({%p, \"%s\", \"%s\", \"%s\"}, %s, %s, \"%s\")", init.engine, init.filename, init.name, init.label, BinaryType2Str(btype), PluginType2Str(ptype), bridgeBinary);

  2694. 

  2695.     if (bridgeBinary == nullptr || bridgeBinary[0] == '\0')

  2696.     {

  2697.         init.engine->setLastError("Bridge not possible, bridge-binary not found");

  2698.         return nullptr;

  2699.     }

  2700. 

  2701.     CarlaPluginBridge* const plugin(new CarlaPluginBridge(init.engine, init.id, btype, ptype));

  2702. 

  2703.     if (! plugin->init(init.filename, init.name, init.label, init.uniqueId, bridgeBinary))

  2704.     {

  2705.         delete plugin;

  2706.         return nullptr;

  2707.     }

  2708. 

  2709.     return plugin;

  2710. }

  2711. 

  2712. CARLA_BACKEND_END_NAMESPACE

  2713. 

  2714. // -------------------------------------------------------------------------------------------------------------------