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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) 2011-2014 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. #ifdef BUILD_BRIDGE

  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. 

  44. CARLA_BACKEND_START_NAMESPACE

  45. 

  46. // -------------------------------------------------------------------------------------------------------------------

  47. 

  48. struct BridgeAudioPool {

  49.     CarlaString filename;

  50.     std::size_t size;

  51.     float* data;

  52.     shm_t shm;

  53. 

  54.     BridgeAudioPool() noexcept

  55.         : filename(),

  56.           size(0),

  57.           data(nullptr)

  58. #ifdef CARLA_PROPER_CPP11_SUPPORT

  59.         , shm(shm_t_INIT) {}

  60. #else

  61.     {

  62.         shm = shm_t_INIT;

  63.     }

  64. #endif

  65. 

  66.     ~BridgeAudioPool() noexcept

  67.     {

  68.         // should be cleared by now

  69.         CARLA_SAFE_ASSERT(data == nullptr);

  70. 

  71.         clear();

  72.     }

  73. 

  74.     bool initialize() noexcept

  75.     {

  76.         char tmpFileBase[64];

  77. 

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

  79. 

  80.         shm = carla_shm_create_temp(tmpFileBase);

  81. 

  82.         if (! carla_is_shm_valid(shm))

  83.             return 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.     }

  124. 

  125.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeAudioPool)

  126. };

  127. 

  128. // -------------------------------------------------------------------------------------------------------------------

  129. 

  130. struct BridgeRtClientControl : public CarlaRingBufferControl<SmallStackBuffer> {

  131.     BridgeRtClientData* data;

  132.     CarlaString filename;

  133.     bool needsSemDestroy;

  134.     shm_t shm;

  135. 

  136.     BridgeRtClientControl()

  137.         : data(nullptr),

  138.           filename(),

  139.           needsSemDestroy(false),

  140. #ifdef CARLA_PROPER_CPP11_SUPPORT

  141.           shm(shm_t_INIT) {}

  142. #else

  143.     {

  144.         shm = shm_t_INIT;

  145.     }

  146. #endif

  147. 

  148.     ~BridgeRtClientControl() noexcept override

  149.     {

  150.         // should be cleared by now

  151.         CARLA_SAFE_ASSERT(data == nullptr);

  152. 

  153.         clear();

  154.     }

  155. 

  156.     bool initialize() noexcept

  157.     {

  158.         char tmpFileBase[64];

  159. 

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

  161. 

  162.         shm = carla_shm_create_temp(tmpFileBase);

  163. 

  164.         if (! carla_is_shm_valid(shm))

  165.             return 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.             carla_zeroStruct(data->sem);

  226.             carla_zeroStruct(data->timeInfo);

  227.             carla_zeroBytes(data->midiOut, kBridgeRtClientDataMidiOutSize);

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

  229.             return true;

  230.         }

  231. 

  232.         return false;

  233.     }

  234. 

  235.     void unmapData() noexcept

  236.     {

  237.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  238. 

  239.         carla_shm_unmap(shm, data);

  240.         data = nullptr;

  241. 

  242.         setRingBuffer(nullptr, false);

  243.     }

  244. 

  245.     bool waitForClient(const uint secs, bool* const timedOut) noexcept

  246.     {

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

  248. 

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

  250. 

  251.         return jackbridge_sem_timedwait(&data->sem.client, secs, timedOut);

  252.     }

  253. 

  254.     void writeOpcode(const PluginBridgeRtClientOpcode opcode) noexcept

  255.     {

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

  257.     }

  258. 

  259.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeRtClientControl)

  260. };

  261. 

  262. // -------------------------------------------------------------------------------------------------------------------

  263. 

  264. struct BridgeNonRtClientControl : public CarlaRingBufferControl<BigStackBuffer> {

  265.     BridgeNonRtClientData* data;

  266.     CarlaString filename;

  267.     CarlaMutex mutex;

  268.     shm_t shm;

  269. 

  270.     BridgeNonRtClientControl() noexcept

  271.         : data(nullptr),

  272.           filename(),

  273.           mutex()

  274. #ifdef CARLA_PROPER_CPP11_SUPPORT

  275.         , shm(shm_t_INIT) {}

  276. #else

  277.     {

  278.         shm = shm_t_INIT;

  279.     }

  280. #endif

  281. 

  282.     ~BridgeNonRtClientControl() noexcept override

  283.     {

  284.         // should be cleared by now

  285.         CARLA_SAFE_ASSERT(data == nullptr);

  286. 

  287.         clear();

  288.     }

  289. 

  290.     bool initialize() noexcept

  291.     {

  292.         char tmpFileBase[64];

  293. 

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

  295. 

  296.         shm = carla_shm_create_temp(tmpFileBase);

  297. 

  298.         if (! carla_is_shm_valid(shm))

  299.             return false;

  300. 

  301.         if (! mapData())

  302.         {

  303.             carla_shm_close(shm);

  304.             carla_shm_init(shm);

  305.             return false;

  306.         }

  307. 

  308.         CARLA_SAFE_ASSERT(data != nullptr);

  309. 

  310.         filename = tmpFileBase;

  311.         return true;

  312.     }

  313. 

  314.     void clear() noexcept

  315.     {

  316.         filename.clear();

  317. 

  318.         if (data != nullptr)

  319.             unmapData();

  320. 

  321.         if (! carla_is_shm_valid(shm))

  322.             return;

  323. 

  324.         carla_shm_close(shm);

  325.         carla_shm_init(shm);

  326.     }

  327. 

  328.     bool mapData() noexcept

  329.     {

  330.         CARLA_SAFE_ASSERT(data == nullptr);

  331. 

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

  333.         {

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

  335.             return true;

  336.         }

  337. 

  338.         return false;

  339.     }

  340. 

  341.     void unmapData() noexcept

  342.     {

  343.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  344. 

  345.         carla_shm_unmap(shm, data);

  346.         data = nullptr;

  347. 

  348.         setRingBuffer(nullptr, false);

  349.     }

  350. 

  351.     void writeOpcode(const PluginBridgeNonRtClientOpcode opcode) noexcept

  352.     {

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

  354.     }

  355. 

  356.     void waitIfDataIsReachingLimit() noexcept

  357.     {

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

  359.             return;

  360. 

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

  362.         {

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

  364.             {

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

  366.                 writeOpcode(kPluginBridgeNonRtClientPing);

  367.                 commitWrite();

  368.                 return;

  369.             }

  370.             carla_msleep(20);

  371.         }

  372. 

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

  374.     }

  375. 

  376.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtClientControl)

  377. };

  378. 

  379. // -------------------------------------------------------------------------------------------------------------------

  380. 

  381. struct BridgeNonRtServerControl : public CarlaRingBufferControl<HugeStackBuffer> {

  382.     BridgeNonRtServerData* data;

  383.     CarlaString filename;

  384.     shm_t shm;

  385. 

  386.     BridgeNonRtServerControl() noexcept

  387.         : data(nullptr),

  388.           filename()

  389. #ifdef CARLA_PROPER_CPP11_SUPPORT

  390.         , shm(shm_t_INIT) {}

  391. #else

  392.     {

  393.         shm = shm_t_INIT;

  394.     }

  395. #endif

  396. 

  397.     ~BridgeNonRtServerControl() noexcept override

  398.     {

  399.         // should be cleared by now

  400.         CARLA_SAFE_ASSERT(data == nullptr);

  401. 

  402.         clear();

  403.     }

  404. 

  405.     bool initialize() noexcept

  406.     {

  407.         char tmpFileBase[64];

  408. 

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

  410. 

  411.         shm = carla_shm_create_temp(tmpFileBase);

  412. 

  413.         if (! carla_is_shm_valid(shm))

  414.             return false;

  415. 

  416.         if (! mapData())

  417.         {

  418.             carla_shm_close(shm);

  419.             carla_shm_init(shm);

  420.             return false;

  421.         }

  422. 

  423.         CARLA_SAFE_ASSERT(data != nullptr);

  424. 

  425.         filename = tmpFileBase;

  426.         return true;

  427.     }

  428. 

  429.     void clear() noexcept

  430.     {

  431.         filename.clear();

  432. 

  433.         if (data != nullptr)

  434.             unmapData();

  435. 

  436.         if (! carla_is_shm_valid(shm))

  437.             return;

  438. 

  439.         carla_shm_close(shm);

  440.         carla_shm_init(shm);

  441.     }

  442. 

  443.     bool mapData() noexcept

  444.     {

  445.         CARLA_SAFE_ASSERT(data == nullptr);

  446. 

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

  448.         {

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

  450.             return true;

  451.         }

  452. 

  453.         return false;

  454.     }

  455. 

  456.     void unmapData() noexcept

  457.     {

  458.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  459. 

  460.         carla_shm_unmap(shm, data);

  461.         data = nullptr;

  462. 

  463.         setRingBuffer(nullptr, false);

  464.     }

  465. 

  466.     PluginBridgeNonRtServerOpcode readOpcode() noexcept

  467.     {

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

  469.     }

  470. 

  471.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtServerControl)

  472. };

  473. 

  474. // -------------------------------------------------------------------------------------------------------------------

  475. 

  476. struct BridgeParamInfo {

  477.     float value;

  478.     CarlaString name;

  479.     CarlaString symbol;

  480.     CarlaString unit;

  481. 

  482.     BridgeParamInfo() noexcept

  483.         : value(0.0f),

  484.           name(),

  485.           symbol(),

  486.           unit() {}

  487. 

  488.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeParamInfo)

  489. };

  490. 

  491. // -------------------------------------------------------------------------------------------------------------------

  492. 

  493. class CarlaPluginBridgeThread : public CarlaThread

  494. {

  495. public:

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

  497.         : CarlaThread("CarlaPluginBridgeThread"),

  498.           kEngine(engine),

  499.           kPlugin(plugin),

  500.           fBinary(),

  501.           fLabel(),

  502.           fShmIds(),

  503.           fProcess(),

  504.           leakDetector_CarlaPluginBridgeThread() {}

  505. 

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

  507.     {

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

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

  510.         CARLA_SAFE_ASSERT(! isThreadRunning());

  511. 

  512.         fBinary = binary;

  513.         fShmIds = shmIds;

  514. 

  515.         if (label != nullptr)

  516.             fLabel = label;

  517.         if (fLabel.isEmpty())

  518.             fLabel = "\"\"";

  519.     }

  520. 

  521.     uintptr_t getProcessPID() const noexcept

  522.     {

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

  524. 

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

  526.     }

  527. 

  528. protected:

  529.     void run()

  530.     {

  531.         if (fProcess == nullptr)

  532.         {

  533.             fProcess = new ChildProcess();

  534.         }

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

  536.         {

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

  538.         }

  539. 

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

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

  542. 

  543.         if (name.isEmpty())

  544.             name = "(none)";

  545. 

  546.         if (filename.isEmpty())

  547.             filename = "\"\"";

  548. 

  549.         StringArray arguments;

  550. 

  551. #ifndef CARLA_OS_WIN

  552.         // start with "wine" if needed

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

  554.             arguments.add("wine");

  555. #endif

  556. 

  557.         // binary

  558.         arguments.add(fBinary);

  559. 

  560.         // plugin type

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

  562. 

  563.         // filename

  564.         arguments.add(filename);

  565. 

  566.         // label

  567.         arguments.add(fLabel);

  568. 

  569.         // uniqueId

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

  571. 

  572.         bool started;

  573. 

  574.         {

  575.             char strBuf[STR_MAX+1];

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

  577. 

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

  579.             const ScopedEngineEnvironmentLocker _seel(kEngine);

  580. 

  581. #ifdef CARLA_OS_LINUX

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

  583. 

  584.             if (oldPreload != nullptr)

  585.                 ::unsetenv("LD_PRELOAD");

  586. #endif

  587. 

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

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

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

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

  592. 

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

  594.             carla_setenv("ENGINE_OPTION_MAX_PARAMETERS", strBuf);

  595. 

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

  597.             carla_setenv("ENGINE_OPTION_UI_BRIDGES_TIMEOUT",strBuf);

  598. 

  599.             if (options.pathLADSPA != nullptr)

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

  601.             else

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

  603. 

  604.             if (options.pathDSSI != nullptr)

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

  606.             else

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

  608. 

  609.             if (options.pathLV2 != nullptr)

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

  611.             else

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

  613. 

  614.             if (options.pathVST2 != nullptr)

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

  616.             else

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

  618. 

  619.             if (options.pathVST3 != nullptr)

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

  621.             else

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

  623. 

  624.             if (options.pathAU != nullptr)

  625.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_AU", options.pathAU);

  626.             else

  627.                 carla_setenv("ENGINE_OPTION_PLUGIN_PATH_AU", "");

  628. 

  629.             if (options.pathGIG != nullptr)

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

  631.             else

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

  633. 

  634.             if (options.pathSF2 != nullptr)

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

  636.             else

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

  638. 

  639.             if (options.pathSFZ != nullptr)

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

  641.             else

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

  643. 

  644.             if (options.binaryDir != nullptr)

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

  646.             else

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

  648. 

  649.             if (options.resourceDir != nullptr)

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

  651.             else

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

  653. 

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

  655. 

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

  657.             carla_setenv("ENGINE_OPTION_FRONTEND_WIN_ID", strBuf);

  658. 

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

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

  661. 

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

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

  664. 

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

  666. 

  667. #ifdef CARLA_OS_LINUX

  668.             if (oldPreload != nullptr)

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

  670. #endif

  671.         }

  672. 

  673.         if (! started)

  674.         {

  675.             carla_stdout("failed!");

  676.             fProcess = nullptr;

  677.             return;

  678.         }

  679. 

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

  681.             carla_sleep(1);

  682. 

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

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

  685.         {

  686.             fProcess->waitForProcessToFinish(2000);

  687. 

  688.             if (fProcess->isRunning())

  689.             {

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

  691.                 fProcess->kill();

  692.             }

  693.             else

  694.             {

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

  696.             }

  697.         }

  698.         else

  699.         {

  700.             // forced quit, may have crashed

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

  702.             {

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

  704. 

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

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

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

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

  709.             }

  710.             else

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

  712.         }

  713. 

  714.         carla_stdout("plugin bridge finished");

  715.         fProcess = nullptr;

  716.     }

  717. 

  718. private:

  719.     CarlaEngine* const kEngine;

  720.     CarlaPlugin* const kPlugin;

  721. 

  722.     String fBinary;

  723.     String fLabel;

  724.     String fShmIds;

  725. 

  726.     ScopedPointer<ChildProcess> fProcess;

  727. 

  728.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginBridgeThread)

  729. };

  730. 

  731. // -------------------------------------------------------------------------------------------------------------------

  732. 

  733. class CarlaPluginBridge : public CarlaPlugin

  734. {

  735. public:

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

  737.         : CarlaPlugin(engine, id),

  738.           fBinaryType(btype),

  739.           fPluginType(ptype),

  740.           fInitiated(false),

  741.           fInitError(false),

  742.           fSaved(false),

  743.           fTimedOut(false),

  744.           fTimedError(false),

  745.           fLastPongCounter(-1),

  746.           fBridgeBinary(),

  747.           fBridgeThread(engine, this),

  748.           fShmAudioPool(),

  749.           fShmRtClientControl(),

  750.           fShmNonRtClientControl(),

  751.           fShmNonRtServerControl(),

  752.           fInfo(),

  753.           fParams(nullptr),

  754.           leakDetector_CarlaPluginBridge()

  755.     {

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

  757. 

  758.         pData->hints |= PLUGIN_IS_BRIDGE;

  759.     }

  760. 

  761.     ~CarlaPluginBridge() override

  762.     {

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

  764. 

  765.         // close UI

  766.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  767.             pData->transientTryCounter = 0;

  768. 

  769.         pData->singleMutex.lock();

  770.         pData->masterMutex.lock();

  771. 

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

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

  774. 

  775.         if (pData->active)

  776.         {

  777.             deactivate();

  778.             pData->active = false;

  779.         }

  780. 

  781.         if (fBridgeThread.isThreadRunning())

  782.         {

  783.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientQuit);

  784.             fShmNonRtClientControl.commitWrite();

  785. 

  786.             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientQuit);

  787.             fShmRtClientControl.commitWrite();

  788. 

  789.             if (! fTimedOut)

  790.                 waitForClient("stopping", 3);

  791.         }

  792. 

  793.         fBridgeThread.stopThread(3000);

  794. 

  795.         fShmNonRtServerControl.clear();

  796.         fShmNonRtClientControl.clear();

  797.         fShmRtClientControl.clear();

  798.         fShmAudioPool.clear();

  799. 

  800.         clearBuffers();

  801. 

  802.         fInfo.chunk.clear();

  803.     }

  804. 

  805.     // -------------------------------------------------------------------

  806.     // Information (base)

  807. 

  808.     BinaryType getBinaryType() const noexcept

  809.     {

  810.         return fBinaryType;

  811.     }

  812. 

  813.     PluginType getType() const noexcept override

  814.     {

  815.         return fPluginType;

  816.     }

  817. 

  818.     PluginCategory getCategory() const noexcept override

  819.     {

  820.         return fInfo.category;

  821.     }

  822. 

  823.     int64_t getUniqueId() const noexcept override

  824.     {

  825.         return fInfo.uniqueId;

  826.     }

  827. 

  828.     // -------------------------------------------------------------------

  829.     // Information (count)

  830. 

  831.     uint32_t getMidiInCount() const noexcept override

  832.     {

  833.         return fInfo.mIns;

  834.     }

  835. 

  836.     uint32_t getMidiOutCount() const noexcept override

  837.     {

  838.         return fInfo.mOuts;

  839.     }

  840. 

  841.     // -------------------------------------------------------------------

  842.     // Information (current data)

  843. 

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

  845.     {

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

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

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

  849. 

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

  851.         return fInfo.chunk.size();

  852.     }

  853. 

  854.     // -------------------------------------------------------------------

  855.     // Information (per-plugin data)

  856. 

  857.     uint getOptionsAvailable() const noexcept override

  858.     {

  859.         return fInfo.optionsAvailable;

  860.     }

  861. 

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

  863.     {

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

  865. 

  866.         return fParams[parameterId].value;

  867.     }

  868. 

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

  870.     {

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

  872.     }

  873. 

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

  875.     {

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

  877.     }

  878. 

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

  880.     {

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

  882.     }

  883. 

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

  885.     {

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

  887.     }

  888. 

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

  890.     {

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

  892. 

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

  894.     }

  895. 

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

  897.     {

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

  899. 

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

  901.     }

  902. 

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

  904.     {

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

  906. 

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

  908.     }

  909. 

  910.     // -------------------------------------------------------------------

  911.     // Set data (state)

  912. 

  913.     void prepareForSave() override

  914.     {

  915.         fSaved = false;

  916. 

  917.         {

  918.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  919. 

  920.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPrepareForSave);

  921.             fShmNonRtClientControl.commitWrite();

  922.         }

  923. 

  924.         carla_stdout("CarlaPluginBridge::prepareForSave() - sent, now waiting...");

  925. 

  926.         for (int i=0; i < 200; ++i)

  927.         {

  928.             if (fSaved)

  929.                 break;

  930.             carla_msleep(30);

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

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

  933.         }

  934. 

  935.         if (! fSaved)

  936.             carla_stderr("CarlaPluginBridge::prepareForSave() - Timeout while requesting save state");

  937.         else

  938.             carla_stdout("CarlaPluginBridge::prepareForSave() - success!");

  939.     }

  940. 

  941.     // -------------------------------------------------------------------

  942.     // Set data (internal stuff)

  943. 

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

  945.     {

  946.         {

  947.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  948. 

  949.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetOption);

  950.             fShmNonRtClientControl.writeUInt(option);

  951.             fShmNonRtClientControl.writeBool(yesNo);

  952.             fShmNonRtClientControl.commitWrite();

  953.         }

  954. 

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

  956.     }

  957. 

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

  959.     {

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

  961. 

  962.         {

  963.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  964. 

  965.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetCtrlChannel);

  966.             fShmNonRtClientControl.writeShort(channel);

  967.             fShmNonRtClientControl.commitWrite();

  968.         }

  969. 

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

  971.     }

  972. 

  973.     // -------------------------------------------------------------------

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

  975. 

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

  977.     {

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

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

  980. 

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

  982.         fParams[parameterId].value = fixedValue;

  983. 

  984.         {

  985.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  986. 

  987.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterValue);

  988.             fShmNonRtClientControl.writeUInt(parameterId);

  989.             fShmNonRtClientControl.writeFloat(value);

  990.             fShmNonRtClientControl.commitWrite();

  991.             fShmNonRtClientControl.waitIfDataIsReachingLimit();

  992.         }

  993. 

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

  995.     }

  996. 

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

  998.     {

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

  1000.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  1001.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1002. 

  1003.         {

  1004.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1005. 

  1006.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterMidiChannel);

  1007.             fShmNonRtClientControl.writeUInt(parameterId);

  1008.             fShmNonRtClientControl.writeByte(channel);

  1009.             fShmNonRtClientControl.commitWrite();

  1010.         }

  1011. 

  1012.         CarlaPlugin::setParameterMidiChannel(parameterId, channel, sendOsc, sendCallback);

  1013.     }

  1014. 

  1015.     void setParameterMidiCC(const uint32_t parameterId, const int16_t cc, const bool sendOsc, const bool sendCallback) noexcept override

  1016.     {

  1017.         CARLA_SAFE_ASSERT_RETURN(sendOsc || sendCallback,); // never call this from RT

  1018.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  1019.         CARLA_SAFE_ASSERT_RETURN(cc >= -1 && cc < MAX_MIDI_CONTROL,);

  1020. 

  1021.         {

  1022.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1023. 

  1024.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterMidiCC);

  1025.             fShmNonRtClientControl.writeUInt(parameterId);

  1026.             fShmNonRtClientControl.writeShort(cc);

  1027.             fShmNonRtClientControl.commitWrite();

  1028.         }

  1029. 

  1030.         CarlaPlugin::setParameterMidiCC(parameterId, cc, sendOsc, sendCallback);

  1031.     }

  1032. 

  1033.     void setProgram(const int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  1034.     {

  1035.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback,); // never call this from RT

  1036.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->prog.count),);

  1037. 

  1038.         {

  1039.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1040. 

  1041.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetProgram);

  1042.             fShmNonRtClientControl.writeInt(index);

  1043.             fShmNonRtClientControl.commitWrite();

  1044.         }

  1045. 

  1046.         CarlaPlugin::setProgram(index, sendGui, sendOsc, sendCallback);

  1047.     }

  1048. 

  1049.     void setMidiProgram(const int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  1050.     {

  1051.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback,); // never call this from RT

  1052.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->midiprog.count),);

  1053. 

  1054.         {

  1055.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1056. 

  1057.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetMidiProgram);

  1058.             fShmNonRtClientControl.writeInt(index);

  1059.             fShmNonRtClientControl.commitWrite();

  1060.         }

  1061. 

  1062.         CarlaPlugin::setMidiProgram(index, sendGui, sendOsc, sendCallback);

  1063.     }

  1064. 

  1065.     void setCustomData(const char* const type, const char* const key, const char* const value, const bool sendGui) override

  1066.     {

  1067.         CARLA_SAFE_ASSERT_RETURN(type != nullptr && type[0] != '\0',);

  1068.         CARLA_SAFE_ASSERT_RETURN(key != nullptr && key[0] != '\0',);

  1069.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

  1070. 

  1071.         const uint32_t typeLen(static_cast<uint32_t>(std::strlen(type)));

  1072.         const uint32_t keyLen(static_cast<uint32_t>(std::strlen(key)));

  1073.         const uint32_t valueLen(static_cast<uint32_t>(std::strlen(value)));

  1074. 

  1075.         {

  1076.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1077. 

  1078.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetCustomData);

  1079. 

  1080.             fShmNonRtClientControl.writeUInt(typeLen);

  1081.             fShmNonRtClientControl.writeCustomData(type, typeLen);

  1082. 

  1083.             fShmNonRtClientControl.writeUInt(keyLen);

  1084.             fShmNonRtClientControl.writeCustomData(key, keyLen);

  1085. 

  1086.             fShmNonRtClientControl.writeUInt(valueLen);

  1087.             fShmNonRtClientControl.writeCustomData(value, valueLen);

  1088. 

  1089.             fShmNonRtClientControl.commitWrite();

  1090.         }

  1091. 

  1092.         CarlaPlugin::setCustomData(type, key, value, sendGui);

  1093.     }

  1094. 

  1095.     void setChunkData(const void* const data, const std::size_t dataSize) override

  1096.     {

  1097.         CARLA_SAFE_ASSERT_RETURN(pData->options & PLUGIN_OPTION_USE_CHUNKS,);

  1098.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  1099.         CARLA_SAFE_ASSERT_RETURN(dataSize > 0,);

  1100. 

  1101.         CarlaString dataBase64(CarlaString::asBase64(data, dataSize));

  1102.         CARLA_SAFE_ASSERT_RETURN(dataBase64.length() > 0,);

  1103. 

  1104.         String filePath(File::getSpecialLocation(File::tempDirectory).getFullPathName());

  1105. 

  1106.         filePath += CARLA_OS_SEP_STR ".CarlaChunk_";

  1107.         filePath += fShmAudioPool.filename.buffer() + 18;

  1108. 

  1109.         if (File(filePath).replaceWithText(dataBase64.buffer()))

  1110.         {

  1111.             const uint32_t ulength(static_cast<uint32_t>(filePath.length()));

  1112. 

  1113.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1114. 

  1115.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetChunkDataFile);

  1116.             fShmNonRtClientControl.writeUInt(ulength);

  1117.             fShmNonRtClientControl.writeCustomData(filePath.toRawUTF8(), ulength);

  1118.             fShmNonRtClientControl.commitWrite();

  1119.         }

  1120.     }

  1121. 

  1122.     // -------------------------------------------------------------------

  1123.     // Set ui stuff

  1124. 

  1125.     void showCustomUI(const bool yesNo) override

  1126.     {

  1127.         {

  1128.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1129. 

  1130.             fShmNonRtClientControl.writeOpcode(yesNo ? kPluginBridgeNonRtClientShowUI : kPluginBridgeNonRtClientHideUI);

  1131.             fShmNonRtClientControl.commitWrite();

  1132.         }

  1133. 

  1134.         if (yesNo)

  1135.         {

  1136.             pData->tryTransient();

  1137.         }

  1138.         else

  1139.         {

  1140.             pData->transientTryCounter = 0;

  1141.         }

  1142.     }

  1143. 

  1144.     void idle() override

  1145.     {

  1146.         if (fBridgeThread.isThreadRunning())

  1147.         {

  1148.             if (fInitiated && fTimedOut && pData->active)

  1149.                 setActive(false, true, true);

  1150. 

  1151.             {

  1152.                 const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1153. 

  1154.                 fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPing);

  1155.                 fShmNonRtClientControl.commitWrite();

  1156.             }

  1157. 

  1158.             try {

  1159.                 handleNonRtData();

  1160.             } CARLA_SAFE_EXCEPTION("handleNonRtData");

  1161.         }

  1162.         else

  1163.             carla_stderr2("TESTING: Bridge has closed!");

  1164. 

  1165.         CarlaPlugin::idle();

  1166.     }

  1167. 

  1168.     // -------------------------------------------------------------------

  1169.     // Plugin state

  1170. 

  1171.     void reload() override

  1172.     {

  1173.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr,);

  1174.         carla_debug("CarlaPluginBridge::reload() - start");

  1175. 

  1176.         const EngineProcessMode processMode(pData->engine->getProccessMode());

  1177. 

  1178.         // Safely disable plugin for reload

  1179.         const ScopedDisabler sd(this);

  1180. 

  1181.         bool needsCtrlIn, needsCtrlOut;

  1182.         needsCtrlIn = needsCtrlOut = false;

  1183. 

  1184.         if (fInfo.aIns > 0)

  1185.         {

  1186.             pData->audioIn.createNew(fInfo.aIns);

  1187.         }

  1188. 

  1189.         if (fInfo.aOuts > 0)

  1190.         {

  1191.             pData->audioOut.createNew(fInfo.aOuts);

  1192.             needsCtrlIn = true;

  1193.         }

  1194. 

  1195.         if (fInfo.cvIns > 0)

  1196.         {

  1197.             pData->cvIn.createNew(fInfo.cvIns);

  1198.         }

  1199. 

  1200.         if (fInfo.cvOuts > 0)

  1201.         {

  1202.             pData->cvOut.createNew(fInfo.cvOuts);

  1203.         }

  1204. 

  1205.         if (fInfo.mIns > 0)

  1206.             needsCtrlIn = true;

  1207. 

  1208.         if (fInfo.mOuts > 0)

  1209.             needsCtrlOut = true;

  1210. 

  1211.         const uint portNameSize(pData->engine->getMaxPortNameSize());

  1212.         CarlaString portName;

  1213. 

  1214.         // Audio Ins

  1215.         for (uint32_t j=0; j < fInfo.aIns; ++j)

  1216.         {

  1217.             portName.clear();

  1218. 

  1219.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1220.             {

  1221.                 portName  = pData->name;

  1222.                 portName += ":";

  1223.             }

  1224. 

  1225.             if (fInfo.aIns > 1)

  1226.             {

  1227.                 portName += "input_";

  1228.                 portName += CarlaString(j+1);

  1229.             }

  1230.             else

  1231.                 portName += "input";

  1232. 

  1233.             portName.truncate(portNameSize);

  1234. 

  1235.             pData->audioIn.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true);

  1236.             pData->audioIn.ports[j].rindex = j;

  1237.         }

  1238. 

  1239.         // Audio Outs

  1240.         for (uint32_t j=0; j < fInfo.aOuts; ++j)

  1241.         {

  1242.             portName.clear();

  1243. 

  1244.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1245.             {

  1246.                 portName  = pData->name;

  1247.                 portName += ":";

  1248.             }

  1249. 

  1250.             if (fInfo.aOuts > 1)

  1251.             {

  1252.                 portName += "output_";

  1253.                 portName += CarlaString(j+1);

  1254.             }

  1255.             else

  1256.                 portName += "output";

  1257. 

  1258.             portName.truncate(portNameSize);

  1259. 

  1260.             pData->audioOut.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false);

  1261.             pData->audioOut.ports[j].rindex = j;

  1262.         }

  1263. 

  1264.         // TODO - CV

  1265. 

  1266.         if (needsCtrlIn)

  1267.         {

  1268.             portName.clear();

  1269. 

  1270.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1271.             {

  1272.                 portName  = pData->name;

  1273.                 portName += ":";

  1274.             }

  1275. 

  1276.             portName += "event-in";

  1277.             portName.truncate(portNameSize);

  1278. 

  1279.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  1280.         }

  1281. 

  1282.         if (needsCtrlOut)

  1283.         {

  1284.             portName.clear();

  1285. 

  1286.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1287.             {

  1288.                 portName  = pData->name;

  1289.                 portName += ":";

  1290.             }

  1291. 

  1292.             portName += "event-out";

  1293.             portName.truncate(portNameSize);

  1294. 

  1295.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  1296.         }

  1297. 

  1298.         // extra plugin hints

  1299.         pData->extraHints = 0x0;

  1300. 

  1301.         if (fInfo.mIns > 0)

  1302.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  1303. 

  1304.         if (fInfo.mOuts > 0)

  1305.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_OUT;

  1306. 

  1307.         if (fInfo.aIns <= 2 && fInfo.aOuts <= 2 && (fInfo.aIns == fInfo.aOuts || fInfo.aIns == 0 || fInfo.aOuts == 0))

  1308.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1309. 

  1310.         bufferSizeChanged(pData->engine->getBufferSize());

  1311.         reloadPrograms(true);

  1312. 

  1313.         carla_debug("CarlaPluginBridge::reload() - end");

  1314.     }

  1315. 

  1316.     // -------------------------------------------------------------------

  1317.     // Plugin processing

  1318. 

  1319.     void activate() noexcept override

  1320.     {

  1321.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  1322. 

  1323.         {

  1324.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1325. 

  1326.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientActivate);

  1327.             fShmNonRtClientControl.commitWrite();

  1328.         }

  1329. 

  1330.         fTimedOut = false;

  1331. 

  1332.         try {

  1333.             waitForClient("activate", 2);

  1334.         } CARLA_SAFE_EXCEPTION("activate - waitForClient");

  1335.     }

  1336. 

  1337.     void deactivate() noexcept override

  1338.     {

  1339.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  1340. 

  1341.         {

  1342.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1343. 

  1344.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientDeactivate);

  1345.             fShmNonRtClientControl.commitWrite();

  1346.         }

  1347. 

  1348.         fTimedOut = false;

  1349. 

  1350.         try {

  1351.             waitForClient("deactivate", 2);

  1352.         } CARLA_SAFE_EXCEPTION("deactivate - waitForClient");

  1353.     }

  1354. 

  1355.     void process(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames) override

  1356.     {

  1357.         // --------------------------------------------------------------------------------------------------------

  1358.         // Check if active

  1359. 

  1360.         if (fTimedOut || fTimedError || ! pData->active)

  1361.         {

  1362.             // disable any output sound

  1363.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1364.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1365.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1366.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1367.             return;

  1368.         }

  1369. 

  1370.         // --------------------------------------------------------------------------------------------------------

  1371.         // Check if needs reset

  1372. 

  1373.         if (pData->needsReset)

  1374.         {

  1375.             // TODO

  1376. 

  1377.             pData->needsReset = false;

  1378.         }

  1379. 

  1380.         // --------------------------------------------------------------------------------------------------------

  1381.         // Event Input

  1382. 

  1383.         if (pData->event.portIn != nullptr)

  1384.         {

  1385.             // ----------------------------------------------------------------------------------------------------

  1386.             // MIDI Input (External)

  1387. 

  1388.             if (pData->extNotes.mutex.tryLock())

  1389.             {

  1390.                 for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin(); it.valid(); it.next())

  1391.                 {

  1392.                     const ExternalMidiNote& note(it.getValue());

  1393. 

  1394.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1395. 

  1396.                     uint8_t data1, data2, data3;

  1397.                     data1 = uint8_t((note.velo > 0 ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF) | (note.channel & MIDI_CHANNEL_BIT));

  1398.                     data2 = note.note;

  1399.                     data3 = note.velo;

  1400. 

  1401.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1402.                     fShmRtClientControl.writeUInt(0); // time

  1403.                     fShmRtClientControl.writeByte(0); // port

  1404.                     fShmRtClientControl.writeByte(3); // size

  1405.                     fShmRtClientControl.writeByte(data1);

  1406.                     fShmRtClientControl.writeByte(data2);

  1407.                     fShmRtClientControl.writeByte(data3);

  1408.                     fShmRtClientControl.commitWrite();

  1409.                 }

  1410. 

  1411.                 pData->extNotes.data.clear();

  1412.                 pData->extNotes.mutex.unlock();

  1413. 

  1414.             } // End of MIDI Input (External)

  1415. 

  1416.             // ----------------------------------------------------------------------------------------------------

  1417.             // Event Input (System)

  1418. 

  1419.             bool allNotesOffSent = false;

  1420. 

  1421.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1422.             {

  1423.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1424. 

  1425.                 // Control change

  1426.                 switch (event.type)

  1427.                 {

  1428.                 case kEngineEventTypeNull:

  1429.                     break;

  1430. 

  1431.                 case kEngineEventTypeControl: {

  1432.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1433. 

  1434.                     switch (ctrlEvent.type)

  1435.                     {

  1436.                     case kEngineControlEventTypeNull:

  1437.                         break;

  1438. 

  1439.                     case kEngineControlEventTypeParameter:

  1440.                         // Control backend stuff

  1441.                         if (event.channel == pData->ctrlChannel)

  1442.                         {

  1443.                             float value;

  1444. 

  1445.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1446.                             {

  1447.                                 value = ctrlEvent.value;

  1448.                                 setDryWet(value, false, false);

  1449.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1450.                                 break;

  1451.                             }

  1452. 

  1453.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1454.                             {

  1455.                                 value = ctrlEvent.value*127.0f/100.0f;

  1456.                                 setVolume(value, false, false);

  1457.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1458.                                 break;

  1459.                             }

  1460. 

  1461.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1462.                             {

  1463.                                 float left, right;

  1464.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1465. 

  1466.                                 if (value < 0.0f)

  1467.                                 {

  1468.                                     left  = -1.0f;

  1469.                                     right = (value*2.0f)+1.0f;

  1470.                                 }

  1471.                                 else if (value > 0.0f)

  1472.                                 {

  1473.                                     left  = (value*2.0f)-1.0f;

  1474.                                     right = 1.0f;

  1475.                                 }

  1476.                                 else

  1477.                                 {

  1478.                                     left  = -1.0f;

  1479.                                     right = 1.0f;

  1480.                                 }

  1481. 

  1482.                                 setBalanceLeft(left, false, false);

  1483.                                 setBalanceRight(right, false, false);

  1484.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1485.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1486.                                 break;

  1487.                             }

  1488.                         }

  1489. 

  1490.                         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventParameter);

  1491.                         fShmRtClientControl.writeUInt(event.time);

  1492.                         fShmRtClientControl.writeByte(event.channel);

  1493.                         fShmRtClientControl.writeUShort(event.ctrl.param);

  1494.                         fShmRtClientControl.writeFloat(event.ctrl.value);

  1495.                         fShmRtClientControl.commitWrite();

  1496.                         break;

  1497. 

  1498.                     case kEngineControlEventTypeMidiBank:

  1499.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1500.                         {

  1501.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiBank);

  1502.                             fShmRtClientControl.writeUInt(event.time);

  1503.                             fShmRtClientControl.writeByte(event.channel);

  1504.                             fShmRtClientControl.writeUShort(event.ctrl.param);

  1505.                             fShmRtClientControl.commitWrite();

  1506.                         }

  1507.                         break;

  1508. 

  1509.                     case kEngineControlEventTypeMidiProgram:

  1510.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1511.                         {

  1512.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiProgram);

  1513.                             fShmRtClientControl.writeUInt(event.time);

  1514.                             fShmRtClientControl.writeByte(event.channel);

  1515.                             fShmRtClientControl.writeUShort(event.ctrl.param);

  1516.                             fShmRtClientControl.commitWrite();

  1517.                         }

  1518.                         break;

  1519. 

  1520.                     case kEngineControlEventTypeAllSoundOff:

  1521.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1522.                         {

  1523.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllSoundOff);

  1524.                             fShmRtClientControl.writeUInt(event.time);

  1525.                             fShmRtClientControl.writeByte(event.channel);

  1526.                             fShmRtClientControl.commitWrite();

  1527.                         }

  1528.                         break;

  1529. 

  1530.                     case kEngineControlEventTypeAllNotesOff:

  1531.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1532.                         {

  1533.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1534.                             {

  1535.                                 allNotesOffSent = true;

  1536.                                 sendMidiAllNotesOffToCallback();

  1537.                             }

  1538. 

  1539.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllNotesOff);

  1540.                             fShmRtClientControl.writeUInt(event.time);

  1541.                             fShmRtClientControl.writeByte(event.channel);

  1542.                             fShmRtClientControl.commitWrite();

  1543.                         }

  1544.                         break;

  1545.                     } // switch (ctrlEvent.type)

  1546.                     break;

  1547.                 } // case kEngineEventTypeControl

  1548. 

  1549.                 case kEngineEventTypeMidi: {

  1550.                     const EngineMidiEvent& midiEvent(event.midi);

  1551. 

  1552.                     if (midiEvent.size == 0 || midiEvent.size >= MAX_MIDI_VALUE)

  1553.                         continue;

  1554. 

  1555.                     const uint8_t* const midiData(midiEvent.size > EngineMidiEvent::kDataSize ? midiEvent.dataExt : midiEvent.data);

  1556. 

  1557.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiData));

  1558. 

  1559.                     if (status == MIDI_STATUS_CHANNEL_PRESSURE && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1560.                         continue;

  1561.                     if (status == MIDI_STATUS_CONTROL_CHANGE && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1562.                         continue;

  1563.                     if (status == MIDI_STATUS_POLYPHONIC_AFTERTOUCH && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1564.                         continue;

  1565.                     if (status == MIDI_STATUS_PITCH_WHEEL_CONTROL && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1566.                         continue;

  1567. 

  1568.                     // Fix bad note-off

  1569.                     if (status == MIDI_STATUS_NOTE_ON && midiData[2] == 0)

  1570.                         status = MIDI_STATUS_NOTE_OFF;

  1571. 

  1572.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1573.                     fShmRtClientControl.writeUInt(event.time);

  1574.                     fShmRtClientControl.writeByte(midiEvent.port);

  1575.                     fShmRtClientControl.writeByte(midiEvent.size);

  1576. 

  1577.                     fShmRtClientControl.writeByte(uint8_t(midiData[0] | (event.channel & MIDI_CHANNEL_BIT)));

  1578. 

  1579.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1580.                         fShmRtClientControl.writeByte(midiData[j]);

  1581. 

  1582.                     fShmRtClientControl.commitWrite();

  1583. 

  1584.                     if (status == MIDI_STATUS_NOTE_ON)

  1585.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, midiData[1], midiData[2]);

  1586.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1587.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, midiData[1], 0.0f);

  1588.                 } break;

  1589.                 }

  1590.             }

  1591. 

  1592.             pData->postRtEvents.trySplice();

  1593. 

  1594.         } // End of Event Input

  1595. 

  1596.         processSingle(audioIn, audioOut, cvIn, cvOut, frames);

  1597.     }

  1598. 

  1599.     bool processSingle(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames)

  1600.     {

  1601.         CARLA_SAFE_ASSERT_RETURN(! fTimedError, false);

  1602.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1603. 

  1604.         if (pData->audioIn.count > 0)

  1605.         {

  1606.             CARLA_SAFE_ASSERT_RETURN(audioIn != nullptr, false);

  1607.         }

  1608.         if (pData->audioOut.count > 0)

  1609.         {

  1610.             CARLA_SAFE_ASSERT_RETURN(audioOut != nullptr, false);

  1611.         }

  1612.         if (pData->cvIn.count > 0)

  1613.         {

  1614.             CARLA_SAFE_ASSERT_RETURN(cvIn != nullptr, false);

  1615.         }

  1616.         if (pData->cvOut.count > 0)

  1617.         {

  1618.             CARLA_SAFE_ASSERT_RETURN(cvOut != nullptr, false);

  1619.         }

  1620. 

  1621.         // --------------------------------------------------------------------------------------------------------

  1622.         // Try lock, silence otherwise

  1623. 

  1624.         if (pData->engine->isOffline())

  1625.         {

  1626.             pData->singleMutex.lock();

  1627.         }

  1628.         else if (! pData->singleMutex.tryLock())

  1629.         {

  1630.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1631.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1632.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1633.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1634.             return false;

  1635.         }

  1636. 

  1637.         // --------------------------------------------------------------------------------------------------------

  1638.         // Reset audio buffers

  1639. 

  1640.         for (uint32_t i=0; i < fInfo.aIns; ++i)

  1641.             FloatVectorOperations::copy(fShmAudioPool.data + (i * frames), audioIn[i], static_cast<int>(frames));

  1642. 

  1643.         // --------------------------------------------------------------------------------------------------------

  1644.         // TimeInfo

  1645. 

  1646.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1647.         BridgeTimeInfo& bridgeTimeInfo(fShmRtClientControl.data->timeInfo);

  1648. 

  1649.         bridgeTimeInfo.playing = timeInfo.playing;

  1650.         bridgeTimeInfo.frame   = timeInfo.frame;

  1651.         bridgeTimeInfo.usecs   = timeInfo.usecs;

  1652.         bridgeTimeInfo.valid   = timeInfo.valid;

  1653. 

  1654.         if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1655.         {

  1656.             bridgeTimeInfo.bar  = timeInfo.bbt.bar;

  1657.             bridgeTimeInfo.beat = timeInfo.bbt.beat;

  1658.             bridgeTimeInfo.tick = timeInfo.bbt.tick;

  1659. 

  1660.             bridgeTimeInfo.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1661.             bridgeTimeInfo.beatType    = timeInfo.bbt.beatType;

  1662. 

  1663.             bridgeTimeInfo.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1664.             bridgeTimeInfo.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1665.             bridgeTimeInfo.barStartTick   = timeInfo.bbt.barStartTick;

  1666.         }

  1667. 

  1668.         // --------------------------------------------------------------------------------------------------------

  1669.         // Run plugin

  1670. 

  1671.         {

  1672.             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientProcess);

  1673.             fShmRtClientControl.commitWrite();

  1674.         }

  1675. 

  1676.         waitForClient("process", 1);

  1677. 

  1678.         if (fTimedOut)

  1679.         {

  1680.             pData->singleMutex.unlock();

  1681.             return false;

  1682.         }

  1683. 

  1684.         for (uint32_t i=0; i < fInfo.aOuts; ++i)

  1685.             FloatVectorOperations::copy(audioOut[i], fShmAudioPool.data + ((i + fInfo.aIns) * frames), static_cast<int>(frames));

  1686. 

  1687.         // --------------------------------------------------------------------------------------------------------

  1688.         // Post-processing (dry/wet, volume and balance)

  1689. 

  1690.         {

  1691.             const bool doVolume  = (pData->hints & PLUGIN_CAN_VOLUME) != 0 && ! carla_compareFloats(pData->postProc.volume, 1.0f);

  1692.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && ! carla_compareFloats(pData->postProc.dryWet, 1.0f);

  1693.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_compareFloats(pData->postProc.balanceLeft, -1.0f) && carla_compareFloats(pData->postProc.balanceRight, 1.0f));

  1694. 

  1695.             bool isPair;

  1696.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1697. 

  1698.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1699.             {

  1700.                 // Dry/Wet

  1701.                 if (doDryWet)

  1702.                 {

  1703.                     for (uint32_t k=0; k < frames; ++k)

  1704.                     {

  1705.                         bufValue        = audioIn[(pData->audioIn.count == 1) ? 0 : i][k];

  1706.                         audioOut[i][k] = (audioOut[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1707.                     }

  1708.                 }

  1709. 

  1710.                 // Balance

  1711.                 if (doBalance)

  1712.                 {

  1713.                     isPair = (i % 2 == 0);

  1714. 

  1715.                     if (isPair)

  1716.                     {

  1717.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1718.                         FloatVectorOperations::copy(oldBufLeft, audioOut[i], static_cast<int>(frames));

  1719.                     }

  1720. 

  1721.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1722.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1723. 

  1724.                     for (uint32_t k=0; k < frames; ++k)

  1725.                     {

  1726.                         if (isPair)

  1727.                         {

  1728.                             // left

  1729.                             audioOut[i][k]  = oldBufLeft[k]     * (1.0f - balRangeL);

  1730.                             audioOut[i][k] += audioOut[i+1][k] * (1.0f - balRangeR);

  1731.                         }

  1732.                         else

  1733.                         {

  1734.                             // right

  1735.                             audioOut[i][k]  = audioOut[i][k] * balRangeR;

  1736.                             audioOut[i][k] += oldBufLeft[k]   * balRangeL;

  1737.                         }

  1738.                     }

  1739.                 }

  1740. 

  1741.                 // Volume (and buffer copy)

  1742.                 if (doVolume)

  1743.                 {

  1744.                     for (uint32_t k=0; k < frames; ++k)

  1745.                         audioOut[i][k] *= pData->postProc.volume;

  1746.                 }

  1747.             }

  1748. 

  1749.         } // End of Post-processing

  1750. 

  1751.         // --------------------------------------------------------------------------------------------------------

  1752. 

  1753.         pData->singleMutex.unlock();

  1754.         return true;

  1755.     }

  1756. 

  1757.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1758.     {

  1759.         resizeAudioPool(newBufferSize);

  1760. 

  1761.         {

  1762.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1763.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  1764.             fShmNonRtClientControl.writeUInt(newBufferSize);

  1765.             fShmNonRtClientControl.commitWrite();

  1766.         }

  1767. 

  1768.         waitForClient("buffersize", 1);

  1769.     }

  1770. 

  1771.     void sampleRateChanged(const double newSampleRate) override

  1772.     {

  1773.         {

  1774.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1775.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  1776.             fShmNonRtClientControl.writeDouble(newSampleRate);

  1777.             fShmNonRtClientControl.commitWrite();

  1778.         }

  1779. 

  1780.         waitForClient("samplerate", 1);

  1781.     }

  1782. 

  1783.     void offlineModeChanged(const bool isOffline) override

  1784.     {

  1785.         {

  1786.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1787.             fShmNonRtClientControl.writeOpcode(isOffline ? kPluginBridgeNonRtClientSetOffline : kPluginBridgeNonRtClientSetOnline);

  1788.             fShmNonRtClientControl.commitWrite();

  1789.         }

  1790. 

  1791.         waitForClient("offline", 1);

  1792.     }

  1793. 

  1794.     // -------------------------------------------------------------------

  1795.     // Plugin buffers

  1796. 

  1797.     void clearBuffers() noexcept override

  1798.     {

  1799.         if (fParams != nullptr)

  1800.         {

  1801.             delete[] fParams;

  1802.             fParams = nullptr;

  1803.         }

  1804. 

  1805.         CarlaPlugin::clearBuffers();

  1806.     }

  1807. 

  1808.     // -------------------------------------------------------------------

  1809.     // Post-poned UI Stuff

  1810. 

  1811.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  1812.     {

  1813.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  1814. 

  1815.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1816. 

  1817.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiParameterChange);

  1818.         fShmNonRtClientControl.writeUInt(index);

  1819.         fShmNonRtClientControl.writeFloat(value);

  1820.         fShmNonRtClientControl.commitWrite();

  1821.     }

  1822. 

  1823.     void uiProgramChange(const uint32_t index) noexcept override

  1824.     {

  1825.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1826. 

  1827.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1828. 

  1829.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiProgramChange);

  1830.         fShmNonRtClientControl.writeUInt(index);

  1831.         fShmNonRtClientControl.commitWrite();

  1832.     }

  1833. 

  1834.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1835.     {

  1836.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1837. 

  1838.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1839. 

  1840.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiMidiProgramChange);

  1841.         fShmNonRtClientControl.writeUInt(index);

  1842.         fShmNonRtClientControl.commitWrite();

  1843.     }

  1844. 

  1845.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1846.     {

  1847.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1848.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1849.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  1850. 

  1851.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1852. 

  1853.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOn);

  1854.         fShmNonRtClientControl.writeByte(channel);

  1855.         fShmNonRtClientControl.writeByte(note);

  1856.         fShmNonRtClientControl.writeByte(velo);

  1857.         fShmNonRtClientControl.commitWrite();

  1858.     }

  1859. 

  1860.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  1861.     {

  1862.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1863.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1864. 

  1865.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1866. 

  1867.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOff);

  1868.         fShmNonRtClientControl.writeByte(channel);

  1869.         fShmNonRtClientControl.writeByte(note);

  1870.         fShmNonRtClientControl.commitWrite();

  1871.     }

  1872. 

  1873.     // -------------------------------------------------------------------

  1874. 

  1875.     void handleNonRtData()

  1876.     {

  1877.         for (; fShmNonRtServerControl.isDataAvailableForReading();)

  1878.         {

  1879.             const PluginBridgeNonRtServerOpcode opcode(fShmNonRtServerControl.readOpcode());

  1880. #ifdef DEBUG

  1881.             if (opcode != kPluginBridgeNonRtServerPong) {

  1882.                 carla_debug("CarlaPluginBridge::handleNonRtData() - got opcode: %s", PluginBridgeNonRtServerOpcode2str(opcode));

  1883.             }

  1884. #endif

  1885.             if (opcode != kPluginBridgeNonRtServerNull && fLastPongCounter > 0)

  1886.                 fLastPongCounter = 0;

  1887. 

  1888.             switch (opcode)

  1889.             {

  1890.             case kPluginBridgeNonRtServerNull:

  1891.             case kPluginBridgeNonRtServerPong:

  1892.                 break;

  1893. 

  1894.             case kPluginBridgeNonRtServerPluginInfo1: {

  1895.                 // uint/category, uint/hints, uint/optionsAvailable, uint/optionsEnabled, long/uniqueId

  1896.                 const uint32_t category = fShmNonRtServerControl.readUInt();

  1897.                 const uint32_t hints    = fShmNonRtServerControl.readUInt();

  1898.                 const uint32_t optionAv = fShmNonRtServerControl.readUInt();

  1899.                 const uint32_t optionEn = fShmNonRtServerControl.readUInt();

  1900.                 const  int64_t uniqueId = fShmNonRtServerControl.readLong();

  1901. 

  1902.                 pData->hints   = hints | PLUGIN_IS_BRIDGE;

  1903.                 pData->options = optionEn;

  1904. 

  1905.                 fInfo.category = static_cast<PluginCategory>(category);

  1906.                 fInfo.uniqueId = uniqueId;

  1907.                 fInfo.optionsAvailable = optionAv;

  1908.             }   break;

  1909. 

  1910.             case kPluginBridgeNonRtServerPluginInfo2: {

  1911.                 // uint/size, str[] (realName), uint/size, str[] (label), uint/size, str[] (maker), uint/size, str[] (copyright)

  1912. 

  1913.                 // realName

  1914.                 const uint32_t realNameSize(fShmNonRtServerControl.readUInt());

  1915.                 char realName[realNameSize+1];

  1916.                 carla_zeroChar(realName, realNameSize+1);

  1917.                 fShmNonRtServerControl.readCustomData(realName, realNameSize);

  1918. 

  1919.                 // label

  1920.                 const uint32_t labelSize(fShmNonRtServerControl.readUInt());

  1921.                 char label[labelSize+1];

  1922.                 carla_zeroChar(label, labelSize+1);

  1923.                 fShmNonRtServerControl.readCustomData(label, labelSize);

  1924. 

  1925.                 // maker

  1926.                 const uint32_t makerSize(fShmNonRtServerControl.readUInt());

  1927.                 char maker[makerSize+1];

  1928.                 carla_zeroChar(maker, makerSize+1);

  1929.                 fShmNonRtServerControl.readCustomData(maker, makerSize);

  1930. 

  1931.                 // copyright

  1932.                 const uint32_t copyrightSize(fShmNonRtServerControl.readUInt());

  1933.                 char copyright[copyrightSize+1];

  1934.                 carla_zeroChar(copyright, copyrightSize+1);

  1935.                 fShmNonRtServerControl.readCustomData(copyright, copyrightSize);

  1936. 

  1937.                 fInfo.name  = realName;

  1938.                 fInfo.label = label;

  1939.                 fInfo.maker = maker;

  1940.                 fInfo.copyright = copyright;

  1941. 

  1942.                 if (pData->name == nullptr)

  1943.                     pData->name = pData->engine->getUniquePluginName(realName);

  1944.             }   break;

  1945. 

  1946.             case kPluginBridgeNonRtServerAudioCount: {

  1947.                 // uint/ins, uint/outs

  1948.                 fInfo.aIns  = fShmNonRtServerControl.readUInt();

  1949.                 fInfo.aOuts = fShmNonRtServerControl.readUInt();

  1950.             }   break;

  1951. 

  1952.             case kPluginBridgeNonRtServerMidiCount: {

  1953.                 // uint/ins, uint/outs

  1954.                 fInfo.mIns  = fShmNonRtServerControl.readUInt();

  1955.                 fInfo.mOuts = fShmNonRtServerControl.readUInt();

  1956.             }   break;

  1957. 

  1958.             case kPluginBridgeNonRtServerParameterCount: {

  1959.                 // uint/count

  1960.                 const uint32_t count = fShmNonRtServerControl.readUInt();

  1961. 

  1962.                 // delete old data

  1963.                 pData->param.clear();

  1964. 

  1965.                 if (fParams != nullptr)

  1966.                 {

  1967.                     delete[] fParams;

  1968.                     fParams = nullptr;

  1969.                 }

  1970. 

  1971.                 if (count > 0)

  1972.                 {

  1973.                     pData->param.createNew(count, false);

  1974.                     fParams = new BridgeParamInfo[count];

  1975. 

  1976.                     // we might not receive all parameter data, so ensure range max is not 0

  1977.                     for (uint32_t i=0; i<count; ++i)

  1978.                     {

  1979.                         pData->param.ranges[i].def = 0.0f;

  1980.                         pData->param.ranges[i].min = 0.0f;

  1981.                         pData->param.ranges[i].max = 1.0f;

  1982.                         pData->param.ranges[i].step = 0.001f;

  1983.                         pData->param.ranges[i].stepSmall = 0.0001f;

  1984.                         pData->param.ranges[i].stepLarge = 0.1f;

  1985.                     }

  1986.                 }

  1987.             }   break;

  1988. 

  1989.             case kPluginBridgeNonRtServerProgramCount: {

  1990.                 // uint/count

  1991.                 pData->prog.clear();

  1992. 

  1993.                 if (const uint32_t count = fShmNonRtServerControl.readUInt())

  1994.                     pData->prog.createNew(static_cast<uint32_t>(count));

  1995. 

  1996.             }   break;

  1997. 

  1998.             case kPluginBridgeNonRtServerMidiProgramCount: {

  1999.                 // uint/count

  2000.                 pData->midiprog.clear();

  2001. 

  2002.                 if (const uint32_t count = fShmNonRtServerControl.readUInt())

  2003.                     pData->midiprog.createNew(static_cast<uint32_t>(count));

  2004. 

  2005.             }   break;

  2006. 

  2007.             case kPluginBridgeNonRtServerParameterData1: {

  2008.                 // uint/index, int/rindex, uint/type, uint/hints, int/cc

  2009.                 const uint32_t index  = fShmNonRtServerControl.readUInt();

  2010.                 const  int32_t rindex = fShmNonRtServerControl.readInt();

  2011.                 const uint32_t type   = fShmNonRtServerControl.readUInt();

  2012.                 const uint32_t hints  = fShmNonRtServerControl.readUInt();

  2013.                 const  int16_t midiCC = fShmNonRtServerControl.readShort();

  2014. 

  2015.                 CARLA_SAFE_ASSERT_BREAK(midiCC >= -1 && midiCC < MAX_MIDI_CONTROL);

  2016.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2017. 

  2018.                 if (index < pData->param.count)

  2019.                 {

  2020.                     pData->param.data[index].type   = static_cast<ParameterType>(type);

  2021.                     pData->param.data[index].index  = static_cast<int32_t>(index);

  2022.                     pData->param.data[index].rindex = rindex;

  2023.                     pData->param.data[index].hints  = hints;

  2024.                     pData->param.data[index].midiCC = midiCC;

  2025.                 }

  2026.             }   break;

  2027. 

  2028.             case kPluginBridgeNonRtServerParameterData2: {

  2029.                 // uint/index, uint/size, str[] (name), uint/size, str[] (unit)

  2030.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2031. 

  2032.                 // name

  2033.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2034.                 char name[nameSize+1];

  2035.                 carla_zeroChar(name, nameSize+1);

  2036.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2037. 

  2038.                 // symbol

  2039.                 const uint32_t symbolSize(fShmNonRtServerControl.readUInt());

  2040.                 char symbol[symbolSize+1];

  2041.                 carla_zeroChar(symbol, symbolSize+1);

  2042.                 fShmNonRtServerControl.readCustomData(symbol, symbolSize);

  2043. 

  2044.                 // unit

  2045.                 const uint32_t unitSize(fShmNonRtServerControl.readUInt());

  2046.                 char unit[unitSize+1];

  2047.                 carla_zeroChar(unit, unitSize+1);

  2048.                 fShmNonRtServerControl.readCustomData(unit, unitSize);

  2049. 

  2050.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2051. 

  2052.                 if (index < pData->param.count)

  2053.                 {

  2054.                     fParams[index].name   = name;

  2055.                     fParams[index].symbol = symbol;

  2056.                     fParams[index].unit   = unit;

  2057.                 }

  2058.             }   break;

  2059. 

  2060.             case kPluginBridgeNonRtServerParameterRanges: {

  2061.                 // uint/index, float/def, float/min, float/max, float/step, float/stepSmall, float/stepLarge

  2062.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2063.                 const float def      = fShmNonRtServerControl.readFloat();

  2064.                 const float min      = fShmNonRtServerControl.readFloat();

  2065.                 const float max      = fShmNonRtServerControl.readFloat();

  2066.                 const float step      = fShmNonRtServerControl.readFloat();

  2067.                 const float stepSmall = fShmNonRtServerControl.readFloat();

  2068.                 const float stepLarge = fShmNonRtServerControl.readFloat();

  2069. 

  2070.                 CARLA_SAFE_ASSERT_BREAK(min < max);

  2071.                 CARLA_SAFE_ASSERT_BREAK(def >= min);

  2072.                 CARLA_SAFE_ASSERT_BREAK(def <= max);

  2073.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2074. 

  2075.                 if (index < pData->param.count)

  2076.                 {

  2077.                     pData->param.ranges[index].def = def;

  2078.                     pData->param.ranges[index].min = min;

  2079.                     pData->param.ranges[index].max = max;

  2080.                     pData->param.ranges[index].step      = step;

  2081.                     pData->param.ranges[index].stepSmall = stepSmall;

  2082.                     pData->param.ranges[index].stepLarge = stepLarge;

  2083.                 }

  2084.             }   break;

  2085. 

  2086.             case kPluginBridgeNonRtServerParameterValue: {

  2087.                 // uint/index, float/value

  2088.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2089.                 const float    value = fShmNonRtServerControl.readFloat();

  2090. 

  2091.                 if (index < pData->param.count)

  2092.                 {

  2093.                     const float fixedValue(pData->param.getFixedValue(index, value));

  2094.                     fParams[index].value = fixedValue;

  2095. 

  2096.                     CarlaPlugin::setParameterValue(index, fixedValue, false, true, true);

  2097.                 }

  2098.             }   break;

  2099. 

  2100.             case kPluginBridgeNonRtServerParameterValue2: {

  2101.                 // uint/index, float/value

  2102.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2103.                 const float    value = fShmNonRtServerControl.readFloat();

  2104. 

  2105.                 if (index < pData->param.count)

  2106.                 {

  2107.                     const float fixedValue(pData->param.getFixedValue(index, value));

  2108.                     fParams[index].value = fixedValue;

  2109.                 }

  2110.             }   break;

  2111. 

  2112.             case kPluginBridgeNonRtServerDefaultValue: {

  2113.                 // uint/index, float/value

  2114.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2115.                 const float    value = fShmNonRtServerControl.readFloat();

  2116. 

  2117.                 if (index < pData->param.count)

  2118.                     pData->param.ranges[index].def = value;

  2119.             }   break;

  2120. 

  2121.             case kPluginBridgeNonRtServerCurrentProgram: {

  2122.                 // int/index

  2123.                 const int32_t index = fShmNonRtServerControl.readInt();

  2124. 

  2125.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

  2126.                 CARLA_SAFE_ASSERT_INT2(index < static_cast<int32_t>(pData->prog.count), index, pData->prog.count);

  2127. 

  2128.                 CarlaPlugin::setProgram(index, false, true, true);

  2129.             }   break;

  2130. 

  2131.             case kPluginBridgeNonRtServerCurrentMidiProgram: {

  2132.                 // int/index

  2133.                 const int32_t index = fShmNonRtServerControl.readInt();

  2134. 

  2135.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

  2136.                 CARLA_SAFE_ASSERT_INT2(index < static_cast<int32_t>(pData->midiprog.count), index, pData->midiprog.count);

  2137. 

  2138.                 CarlaPlugin::setMidiProgram(index, false, true, true);

  2139.             }   break;

  2140. 

  2141.             case kPluginBridgeNonRtServerProgramName: {

  2142.                 // uint/index, uint/size, str[] (name)

  2143.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2144. 

  2145.                 // name

  2146.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2147.                 char name[nameSize+1];

  2148.                 carla_zeroChar(name, nameSize+1);

  2149.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2150. 

  2151.                 CARLA_SAFE_ASSERT_INT2(index < pData->prog.count, index, pData->prog.count);

  2152. 

  2153.                 if (index < pData->prog.count)

  2154.                 {

  2155.                     if (pData->prog.names[index] != nullptr)

  2156.                         delete[] pData->prog.names[index];

  2157.                     pData->prog.names[index] = carla_strdup(name);

  2158.                 }

  2159.             }   break;

  2160. 

  2161.             case kPluginBridgeNonRtServerMidiProgramData: {

  2162.                 // uint/index, uint/bank, uint/program, uint/size, str[] (name)

  2163.                 const uint32_t index   = fShmNonRtServerControl.readUInt();

  2164.                 const uint32_t bank    = fShmNonRtServerControl.readUInt();

  2165.                 const uint32_t program = fShmNonRtServerControl.readUInt();

  2166. 

  2167.                 // name

  2168.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2169.                 char name[nameSize+1];

  2170.                 carla_zeroChar(name, nameSize+1);

  2171.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2172. 

  2173.                 CARLA_SAFE_ASSERT_INT2(index < pData->midiprog.count, index, pData->midiprog.count);

  2174. 

  2175.                 if (index < pData->midiprog.count)

  2176.                 {

  2177.                     if (pData->midiprog.data[index].name != nullptr)

  2178.                         delete[] pData->midiprog.data[index].name;

  2179.                     pData->midiprog.data[index].bank    = bank;

  2180.                     pData->midiprog.data[index].program = program;

  2181.                     pData->midiprog.data[index].name    = carla_strdup(name);

  2182.                 }

  2183.             }   break;

  2184. 

  2185.             case kPluginBridgeNonRtServerSetCustomData: {

  2186.                 // uint/size, str[], uint/size, str[], uint/size, str[]

  2187. 

  2188.                 // type

  2189.                 const uint32_t typeSize(fShmNonRtServerControl.readUInt());

  2190.                 char type[typeSize+1];

  2191.                 carla_zeroChar(type, typeSize+1);

  2192.                 fShmNonRtServerControl.readCustomData(type, typeSize);

  2193. 

  2194.                 // key

  2195.                 const uint32_t keySize(fShmNonRtServerControl.readUInt());

  2196.                 char key[keySize+1];

  2197.                 carla_zeroChar(key, keySize+1);

  2198.                 fShmNonRtServerControl.readCustomData(key, keySize);

  2199. 

  2200.                 // value

  2201.                 const uint32_t valueSize(fShmNonRtServerControl.readUInt());

  2202.                 char value[valueSize+1];

  2203.                 carla_zeroChar(value, valueSize+1);

  2204.                 fShmNonRtServerControl.readCustomData(value, valueSize);

  2205. 

  2206.                 CarlaPlugin::setCustomData(type, key, value, false);

  2207.             }   break;

  2208. 

  2209.             case kPluginBridgeNonRtServerSetChunkDataFile: {

  2210.                 // uint/size, str[] (filename)

  2211. 

  2212.                 // chunkFilePath

  2213.                 const uint32_t chunkFilePathSize(fShmNonRtServerControl.readUInt());

  2214.                 char chunkFilePath[chunkFilePathSize+1];

  2215.                 carla_zeroChar(chunkFilePath, chunkFilePathSize+1);

  2216.                 fShmNonRtServerControl.readCustomData(chunkFilePath, chunkFilePathSize);

  2217. 

  2218.                 String realChunkFilePath(chunkFilePath);

  2219.                 carla_stdout("chunk save path BEFORE => %s", realChunkFilePath.toRawUTF8());

  2220. 

  2221. #ifndef CARLA_OS_WIN

  2222.                 // Using Wine, fix temp dir

  2223.                 if (fBinaryType == BINARY_WIN32 || fBinaryType == BINARY_WIN64)

  2224.                 {

  2225.                     // Get WINEPREFIX

  2226.                     String wineDir;

  2227.                     if (const char* const WINEPREFIX = getenv("WINEPREFIX"))

  2228.                         wineDir = String(WINEPREFIX);

  2229.                     else

  2230.                         wineDir = File::getSpecialLocation(File::userHomeDirectory).getFullPathName() + "/.wine";

  2231. 

  2232.                     const StringArray driveLetterSplit(StringArray::fromTokens(realChunkFilePath, ":/", ""));

  2233. 

  2234.                     realChunkFilePath  = wineDir;

  2235.                     realChunkFilePath += "/drive_";

  2236.                     realChunkFilePath += driveLetterSplit[0].toLowerCase();

  2237.                     realChunkFilePath += "/";

  2238.                     realChunkFilePath += driveLetterSplit[1];

  2239. 

  2240.                     realChunkFilePath  = realChunkFilePath.replace("\\", "/");

  2241.                     carla_stdout("chunk save path AFTER => %s", realChunkFilePath.toRawUTF8());

  2242.                 }

  2243. #endif

  2244. 

  2245.                 File chunkFile(realChunkFilePath);

  2246. 

  2247.                 if (chunkFile.existsAsFile())

  2248.                 {

  2249.                     fInfo.chunk = carla_getChunkFromBase64String(chunkFile.loadFileAsString().toRawUTF8());

  2250.                     chunkFile.deleteFile();

  2251.                     carla_stderr("chunk data final");

  2252.                 }

  2253.             }   break;

  2254. 

  2255.             case kPluginBridgeNonRtServerSetLatency: {

  2256.                 // uint

  2257.             }   break;

  2258. 

  2259.             case kPluginBridgeNonRtServerReady:

  2260.                 fInitiated = true;

  2261.                 break;

  2262. 

  2263.             case kPluginBridgeNonRtServerSaved:

  2264.                 fSaved = true;

  2265.                 break;

  2266. 

  2267.             case kPluginBridgeNonRtServerUiClosed:

  2268.                 pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2269.                 break;

  2270. 

  2271.             case kPluginBridgeNonRtServerError: {

  2272.                 // error

  2273.                 const uint32_t errorSize(fShmNonRtServerControl.readUInt());

  2274.                 char error[errorSize+1];

  2275.                 carla_zeroChar(error, errorSize+1);

  2276.                 fShmNonRtServerControl.readCustomData(error, errorSize);

  2277. 

  2278.                 if (fInitiated)

  2279.                 {

  2280.                     pData->engine->callback(ENGINE_CALLBACK_ERROR, pData->id, 0, 0, 0.0f, error);

  2281. 

  2282.                     // just in case

  2283.                     pData->engine->setLastError(error);

  2284.                     fInitError = true;

  2285.                 }

  2286.                 else

  2287.                 {

  2288.                     pData->engine->setLastError(error);

  2289.                     fInitError = true;

  2290.                     fInitiated = true;

  2291.                 }

  2292.             }   break;

  2293.             }

  2294.         }

  2295.     }

  2296. 

  2297.     // -------------------------------------------------------------------

  2298. 

  2299.     uintptr_t getUiBridgeProcessId() const noexcept override

  2300.     {

  2301.         return fBridgeThread.getProcessPID();

  2302.     }

  2303. 

  2304.     const void* getExtraStuff() const noexcept override

  2305.     {

  2306.         return fBridgeBinary.isNotEmpty() ? fBridgeBinary.buffer() : nullptr;

  2307.     }

  2308. 

  2309.     // -------------------------------------------------------------------

  2310. 

  2311.     bool init(const char* const filename, const char* const name, const char* const label, const char* const bridgeBinary)

  2312.     {

  2313.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2314. 

  2315.         // ---------------------------------------------------------------

  2316.         // first checks

  2317. 

  2318.         if (pData->client != nullptr)

  2319.         {

  2320.             pData->engine->setLastError("Plugin client is already registered");

  2321.             return false;

  2322.         }

  2323. 

  2324.         if (bridgeBinary == nullptr || bridgeBinary[0] == '\0')

  2325.         {

  2326.             pData->engine->setLastError("null bridge binary");

  2327.             return false;

  2328.         }

  2329. 

  2330.         // ---------------------------------------------------------------

  2331.         // set info

  2332. 

  2333.         if (name != nullptr && name[0] != '\0')

  2334.             pData->name = pData->engine->getUniquePluginName(name);

  2335. 

  2336.         if (filename != nullptr && filename[0] != '\0')

  2337.             pData->filename = carla_strdup(filename);

  2338.         else

  2339.             pData->filename = carla_strdup("");

  2340. 

  2341.         fBridgeBinary = bridgeBinary;

  2342. 

  2343.         std::srand(static_cast<uint>(std::time(nullptr)));

  2344. 

  2345.         // ---------------------------------------------------------------

  2346.         // init sem/shm

  2347. 

  2348.         if (! fShmAudioPool.initialize())

  2349.         {

  2350.             carla_stdout("Failed to initialize shared memory audio pool");

  2351.             return false;

  2352.         }

  2353. 

  2354.         if (! fShmRtClientControl.initialize())

  2355.         {

  2356.             carla_stdout("Failed to initialize RT client control");

  2357.             fShmAudioPool.clear();

  2358.             return false;

  2359.         }

  2360. 

  2361.         if (! fShmNonRtClientControl.initialize())

  2362.         {

  2363.             carla_stdout("Failed to initialize Non-RT client control");

  2364.             fShmRtClientControl.clear();

  2365.             fShmAudioPool.clear();

  2366.             return false;

  2367.         }

  2368. 

  2369.         if (! fShmNonRtServerControl.initialize())

  2370.         {

  2371.             carla_stdout("Failed to initialize Non-RT server control");

  2372.             fShmNonRtClientControl.clear();

  2373.             fShmRtClientControl.clear();

  2374.             fShmAudioPool.clear();

  2375.             return false;

  2376.         }

  2377. 

  2378.         // ---------------------------------------------------------------

  2379. 

  2380.         carla_stdout("Carla Server Info:");

  2381.         carla_stdout("  sizeof(BridgeRtClientData):    " P_SIZE, sizeof(BridgeRtClientData));

  2382.         carla_stdout("  sizeof(BridgeNonRtClientData): " P_SIZE, sizeof(BridgeNonRtClientData));

  2383.         carla_stdout("  sizeof(BridgeNonRtServerData): " P_SIZE, sizeof(BridgeNonRtServerData));

  2384. 

  2385.         // initial values

  2386.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientNull);

  2387.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeRtClientData)));

  2388.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeNonRtClientData)));

  2389.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeNonRtServerData)));

  2390. 

  2391.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  2392.         fShmNonRtClientControl.writeUInt(pData->engine->getBufferSize());

  2393. 

  2394.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  2395.         fShmNonRtClientControl.writeDouble(pData->engine->getSampleRate());

  2396. 

  2397.         fShmNonRtClientControl.commitWrite();

  2398. 

  2399.         // init bridge thread

  2400.         {

  2401.             char shmIdsStr[6*4+1];

  2402.             carla_zeroChar(shmIdsStr, 6*4+1);

  2403. 

  2404.             std::strncpy(shmIdsStr+6*0, &fShmAudioPool.filename[fShmAudioPool.filename.length()-6], 6);

  2405.             std::strncpy(shmIdsStr+6*1, &fShmRtClientControl.filename[fShmRtClientControl.filename.length()-6], 6);

  2406.             std::strncpy(shmIdsStr+6*2, &fShmNonRtClientControl.filename[fShmNonRtClientControl.filename.length()-6], 6);

  2407.             std::strncpy(shmIdsStr+6*3, &fShmNonRtServerControl.filename[fShmNonRtServerControl.filename.length()-6], 6);

  2408. 

  2409.             fBridgeThread.setData(bridgeBinary, label, shmIdsStr);

  2410.             fBridgeThread.startThread();

  2411.         }

  2412. 

  2413.         fInitiated = false;

  2414.         fLastPongCounter = 0;

  2415. 

  2416.         for (; fLastPongCounter++ < 500;)

  2417.         {

  2418.             if (fInitiated || ! fBridgeThread.isThreadRunning())

  2419.                 break;

  2420.             carla_msleep(20);

  2421.             pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2422.             pData->engine->idle();

  2423.             idle();

  2424.         }

  2425. 

  2426.         fLastPongCounter = -1;

  2427. 

  2428.         if (fInitError || ! fInitiated)

  2429.         {

  2430.             fBridgeThread.stopThread(6000);

  2431. 

  2432.             if (! fInitError)

  2433.                 pData->engine->setLastError("Timeout while waiting for a response from plugin-bridge\n(or the plugin crashed on initialization?)");

  2434. 

  2435.             return false;

  2436.         }

  2437. 

  2438.         // ---------------------------------------------------------------

  2439.         // register client

  2440. 

  2441.         if (pData->name == nullptr)

  2442.         {

  2443.             if (label != nullptr && label[0] != '\0')

  2444.                 pData->name = pData->engine->getUniquePluginName(label);

  2445.             else

  2446.                 pData->name = pData->engine->getUniquePluginName("unknown");

  2447.         }

  2448. 

  2449.         pData->client = pData->engine->addClient(this);

  2450. 

  2451.         if (pData->client == nullptr || ! pData->client->isOk())

  2452.         {

  2453.             pData->engine->setLastError("Failed to register plugin client");

  2454.             return false;

  2455.         }

  2456. 

  2457.         return true;

  2458.     }

  2459. 

  2460. private:

  2461.     const BinaryType fBinaryType;

  2462.     const PluginType fPluginType;

  2463. 

  2464.     bool fInitiated;

  2465.     bool fInitError;

  2466.     bool fSaved;

  2467.     bool fTimedOut;

  2468.     bool fTimedError;

  2469. 

  2470.     int32_t fLastPongCounter;

  2471. 

  2472.     CarlaString             fBridgeBinary;

  2473.     CarlaPluginBridgeThread fBridgeThread;

  2474. 

  2475.     BridgeAudioPool          fShmAudioPool;

  2476.     BridgeRtClientControl    fShmRtClientControl;

  2477.     BridgeNonRtClientControl fShmNonRtClientControl;

  2478.     BridgeNonRtServerControl fShmNonRtServerControl;

  2479. 

  2480.     struct Info {

  2481.         uint32_t aIns, aOuts;

  2482.         uint32_t cvIns, cvOuts;

  2483.         uint32_t mIns, mOuts;

  2484.         PluginCategory category;

  2485.         uint optionsAvailable;

  2486.         int64_t uniqueId;

  2487.         CarlaString name;

  2488.         CarlaString label;

  2489.         CarlaString maker;

  2490.         CarlaString copyright;

  2491.         std::vector<uint8_t> chunk;

  2492. 

  2493.         Info()

  2494.             : aIns(0),

  2495.               aOuts(0),

  2496.               cvIns(0),

  2497.               cvOuts(0),

  2498.               mIns(0),

  2499.               mOuts(0),

  2500.               category(PLUGIN_CATEGORY_NONE),

  2501.               optionsAvailable(0),

  2502.               uniqueId(0),

  2503.               name(),

  2504.               label(),

  2505.               maker(),

  2506.               copyright(),

  2507.               chunk() {}

  2508.     } fInfo;

  2509. 

  2510.     BridgeParamInfo* fParams;

  2511. 

  2512.     void resizeAudioPool(const uint32_t bufferSize)

  2513.     {

  2514.         fShmAudioPool.resize(bufferSize, fInfo.aIns+fInfo.aOuts, fInfo.cvIns+fInfo.cvOuts);

  2515. 

  2516.         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientSetAudioPool);

  2517.         fShmRtClientControl.writeULong(static_cast<uint64_t>(fShmAudioPool.size));

  2518. 

  2519.         fShmRtClientControl.commitWrite();

  2520. 

  2521.         waitForClient("resize-pool");

  2522.     }

  2523. 

  2524.     void waitForClient(const char* const action, const uint secs = 5)

  2525.     {

  2526.         CARLA_SAFE_ASSERT_RETURN(! fTimedOut,);

  2527.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  2528. 

  2529.         if (fShmRtClientControl.waitForClient(secs, &fTimedOut))

  2530.             return;

  2531. 

  2532.         if (fTimedOut)

  2533.         {

  2534.             carla_stderr("waitForClient(%s) timeout here", action);

  2535.         }

  2536.         else

  2537.         {

  2538.             fTimedError = true;

  2539.             carla_stderr("waitForClient(%s) error while waiting", action);

  2540.         }

  2541.     }

  2542. 

  2543.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginBridge)

  2544. };

  2545. 

  2546. CARLA_BACKEND_END_NAMESPACE

  2547. 

  2548. // -------------------------------------------------------------------------------------------------------------------

  2549. 

  2550. CARLA_BACKEND_START_NAMESPACE

  2551. 

  2552. CarlaPlugin* CarlaPlugin::newBridge(const Initializer& init, BinaryType btype, PluginType ptype, const char* const bridgeBinary)

  2553. {

  2554.     carla_debug("CarlaPlugin::newBridge({%p, \"%s\", \"%s\", \"%s\"}, %s, %s, \"%s\")", init.engine, init.filename, init.name, init.label, BinaryType2Str(btype), PluginType2Str(ptype), bridgeBinary);

  2555. 

  2556.     if (bridgeBinary == nullptr || bridgeBinary[0] == '\0')

  2557.     {

  2558.         init.engine->setLastError("Bridge not possible, bridge-binary not found");

  2559.         return nullptr;

  2560.     }

  2561. 

  2562.     CarlaPluginBridge* const plugin(new CarlaPluginBridge(init.engine, init.id, btype, ptype));

  2563. 

  2564.     if (! plugin->init(init.filename, init.name, init.label, bridgeBinary))

  2565.     {

  2566.         delete plugin;

  2567.         return nullptr;

  2568.     }

  2569. 

  2570.     plugin->reload();

  2571. 

  2572.     bool canRun = true;

  2573. 

  2574.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK)

  2575.     {

  2576.         if (! plugin->canRunInRack())

  2577.         {

  2578.             init.engine->setLastError("Carla's rack mode can only work with Stereo Bridged plugins, sorry!");

  2579.             canRun = false;

  2580.         }

  2581.         else if (plugin->getCVInCount() > 0 || plugin->getCVInCount() > 0)

  2582.         {

  2583.             init.engine->setLastError("Carla's rack mode cannot work with plugins that have CV ports, sorry!");

  2584.             canRun = false;

  2585.         }

  2586.     }

  2587.     else if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_PATCHBAY && (plugin->getCVInCount() > 0 || plugin->getCVInCount() > 0))

  2588.     {

  2589.         init.engine->setLastError("CV ports in patchbay mode is still TODO");

  2590.         canRun = false;

  2591.     }

  2592. 

  2593.     if (! canRun)

  2594.     {

  2595.         delete plugin;

  2596.         return nullptr;

  2597.     }

  2598. 

  2599.     return plugin;

  2600. }

  2601. 

  2602. CARLA_BACKEND_END_NAMESPACE

  2603. 

  2604. // -------------------------------------------------------------------------------------------------------------------