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

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  1. /*

  2.  * Carla Plugin Bridge

  3.  * Copyright (C) 2011-2015 Filipe Coelho <falktx@falktx.com>

  4.  *

  5.  * This program is free software; you can redistribute it and/or

  6.  * modify it under the terms of the GNU General Public License as

  7.  * published by the Free Software Foundation; either version 2 of

  8.  * the License, or any later version.

  9.  *

  10.  * This program is distributed in the hope that it will be useful,

  11.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  12.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  13.  * GNU General Public License for more details.

  14.  *

  15.  * For a full copy of the GNU General Public License see the doc/GPL.txt file.

  16.  */

  17. 

  18. #if defined(BUILD_BRIDGE) && defined(BRIDGE_PLUGIN)

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

  20. #endif

  21. 

  22. #include "CarlaPluginInternal.hpp"

  23. 

  24. #include "CarlaBackendUtils.hpp"

  25. #include "CarlaBase64Utils.hpp"

  26. #include "CarlaBridgeUtils.hpp"

  27. #include "CarlaEngineUtils.hpp"

  28. #include "CarlaMathUtils.hpp"

  29. #include "CarlaShmUtils.hpp"

  30. #include "CarlaThread.hpp"

  31. 

  32. #include "jackbridge/JackBridge.hpp"

  33. 

  34. #include <ctime>

  35. 

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

  37. 

  38. using juce::ChildProcess;

  39. using juce::File;

  40. using juce::ScopedPointer;

  41. using juce::String;

  42. using juce::StringArray;

  43. using juce::Time;

  44. 

  45. CARLA_BACKEND_START_NAMESPACE

  46. 

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

  48. 

  49. struct BridgeAudioPool {

  50.     CarlaString filename;

  51.     std::size_t size;

  52.     float* data;

  53.     carla_shm_t shm;

  54. 

  55.     BridgeAudioPool() noexcept

  56.         : filename(),

  57.           size(0),

  58.           data(nullptr)

  59. #ifdef CARLA_PROPER_CPP11_SUPPORT

  60.         , shm(carla_shm_t_INIT) {}

  61. #else

  62.     {

  63.         carla_shm_init(shm);

  64.     }

  65. #endif

  66. 

  67.     ~BridgeAudioPool() noexcept

  68.     {

  69.         // should be cleared by now

  70.         CARLA_SAFE_ASSERT(data == nullptr);

  71. 

  72.         clear();

  73.     }

  74. 

  75.     bool initialize() noexcept

  76.     {

  77.         char tmpFileBase[64];

  78. 

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

  80. 

  81.         shm = carla_shm_create_temp(tmpFileBase);

  82. 

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

  84. 

  85.         filename = tmpFileBase;

  86.         return true;

  87.     }

  88. 

  89.     void clear() noexcept

  90.     {

  91.         filename.clear();

  92. 

  93.         if (! carla_is_shm_valid(shm))

  94.         {

  95.             CARLA_SAFE_ASSERT(data == nullptr);

  96.             return;

  97.         }

  98. 

  99.         if (data != nullptr)

  100.         {

  101.             carla_shm_unmap(shm, data);

  102.             data = nullptr;

  103.         }

  104. 

  105.         size = 0;

  106.         carla_shm_close(shm);

  107.         carla_shm_init(shm);

  108.     }

  109. 

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

  111.     {

  112.         CARLA_SAFE_ASSERT_RETURN(carla_is_shm_valid(shm),);

  113. 

  114.         if (data != nullptr)

  115.             carla_shm_unmap(shm, data);

  116. 

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

  118. 

  119.         if (size == 0)

  120.             size = sizeof(float);

  121. 

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

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

  124.     }

  125. 

  126.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeAudioPool)

  127. };

  128. 

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

  130. 

  131. struct BridgeRtClientControl : public CarlaRingBufferControl<SmallStackBuffer> {

  132.     BridgeRtClientData* data;

  133.     CarlaString filename;

  134.     bool needsSemDestroy;

  135.     carla_shm_t shm;

  136. 

  137.     BridgeRtClientControl()

  138.         : data(nullptr),

  139.           filename(),

  140.           needsSemDestroy(false)

  141. #ifdef CARLA_PROPER_CPP11_SUPPORT

  142.         , shm(carla_shm_t_INIT) {}

  143. #else

  144.     {

  145.         carla_shm_init(shm);

  146.     }

  147. #endif

  148. 

  149.     ~BridgeRtClientControl() noexcept override

  150.     {

  151.         // should be cleared by now

  152.         CARLA_SAFE_ASSERT(data == nullptr);

  153. 

  154.         clear();

  155.     }

  156. 

  157.     bool initialize() noexcept

  158.     {

  159.         char tmpFileBase[64];

  160. 

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

  162. 

  163.         shm = carla_shm_create_temp(tmpFileBase);

  164. 

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

  166. 

  167.         if (! mapData())

  168.         {

  169.             carla_shm_close(shm);

  170.             carla_shm_init(shm);

  171.             return false;

  172.         }

  173. 

  174.         CARLA_SAFE_ASSERT(data != nullptr);

  175. 

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

  177.         {

  178.             unmapData();

  179.             carla_shm_close(shm);

  180.             carla_shm_init(shm);

  181.             return false;

  182.         }

  183. 

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

  185.         {

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

  187.             unmapData();

  188.             carla_shm_close(shm);

  189.             carla_shm_init(shm);

  190.             return false;

  191.         }

  192. 

  193.         filename = tmpFileBase;

  194.         needsSemDestroy = true;

  195.         return true;

  196.     }

  197. 

  198.     void clear() noexcept

  199.     {

  200.         filename.clear();

  201. 

  202.         if (needsSemDestroy)

  203.         {

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

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

  206.             needsSemDestroy = false;

  207.         }

  208. 

  209.         if (data != nullptr)

  210.             unmapData();

  211. 

  212.         if (! carla_is_shm_valid(shm))

  213.             return;

  214. 

  215.         carla_shm_close(shm);

  216.         carla_shm_init(shm);

  217.     }

  218. 

  219.     bool mapData() noexcept

  220.     {

  221.         CARLA_SAFE_ASSERT(data == nullptr);

  222. 

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

  224.         {

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

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

  227.             return true;

  228.         }

  229. 

  230.         return false;

  231.     }

  232. 

  233.     void unmapData() noexcept

  234.     {

  235.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  236. 

  237.         carla_shm_unmap(shm, data);

  238.         data = nullptr;

  239. 

  240.         setRingBuffer(nullptr, false);

  241.     }

  242. 

  243.     bool waitForClient(const uint msecs) noexcept

  244.     {

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

  246. 

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

  248. 

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

  250.     }

  251. 

  252.     void writeOpcode(const PluginBridgeRtClientOpcode opcode) noexcept

  253.     {

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

  255.     }

  256. 

  257.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeRtClientControl)

  258. };

  259. 

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

  261. 

  262. struct BridgeNonRtClientControl : public CarlaRingBufferControl<BigStackBuffer> {

  263.     BridgeNonRtClientData* data;

  264.     CarlaString filename;

  265.     CarlaMutex mutex;

  266.     carla_shm_t shm;

  267. 

  268.     BridgeNonRtClientControl() noexcept

  269.         : data(nullptr),

  270.           filename(),

  271.           mutex()

  272. #ifdef CARLA_PROPER_CPP11_SUPPORT

  273.         , shm(carla_shm_t_INIT) {}

  274. #else

  275.     {

  276.         carla_shm_init(shm);

  277.     }

  278. #endif

  279. 

  280.     ~BridgeNonRtClientControl() noexcept override

  281.     {

  282.         // should be cleared by now

  283.         CARLA_SAFE_ASSERT(data == nullptr);

  284. 

  285.         clear();

  286.     }

  287. 

  288.     bool initialize() noexcept

  289.     {

  290.         char tmpFileBase[64];

  291. 

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

  293. 

  294.         shm = carla_shm_create_temp(tmpFileBase);

  295. 

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

  297. 

  298.         if (! mapData())

  299.         {

  300.             carla_shm_close(shm);

  301.             carla_shm_init(shm);

  302.             return false;

  303.         }

  304. 

  305.         CARLA_SAFE_ASSERT(data != nullptr);

  306. 

  307.         filename = tmpFileBase;

  308.         return true;

  309.     }

  310. 

  311.     void clear() noexcept

  312.     {

  313.         filename.clear();

  314. 

  315.         if (data != nullptr)

  316.             unmapData();

  317. 

  318.         if (! carla_is_shm_valid(shm))

  319.             return;

  320. 

  321.         carla_shm_close(shm);

  322.         carla_shm_init(shm);

  323.     }

  324. 

  325.     bool mapData() noexcept

  326.     {

  327.         CARLA_SAFE_ASSERT(data == nullptr);

  328. 

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

  330.         {

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

  332.             return true;

  333.         }

  334. 

  335.         return false;

  336.     }

  337. 

  338.     void unmapData() noexcept

  339.     {

  340.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  341. 

  342.         carla_shm_unmap(shm, data);

  343.         data = nullptr;

  344. 

  345.         setRingBuffer(nullptr, false);

  346.     }

  347. 

  348.     void writeOpcode(const PluginBridgeNonRtClientOpcode opcode) noexcept

  349.     {

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

  351.     }

  352. 

  353.     void waitIfDataIsReachingLimit() noexcept

  354.     {

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

  356.             return;

  357. 

  358.         carla_stdout("Server waitIfDataIsReachingLimit() waiting...");

  359. 

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

  361.         {

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

  363.             {

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

  365.                 writeOpcode(kPluginBridgeNonRtClientPing);

  366.                 commitWrite();

  367.                 return;

  368.             }

  369.             carla_msleep(20);

  370.         }

  371. 

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

  373.     }

  374. 

  375.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtClientControl)

  376. };

  377. 

  378. // -------------------------------------------------------------------------------------------------------------------

  379. 

  380. struct BridgeNonRtServerControl : public CarlaRingBufferControl<HugeStackBuffer> {

  381.     BridgeNonRtServerData* data;

  382.     CarlaString filename;

  383.     carla_shm_t shm;

  384. 

  385.     BridgeNonRtServerControl() noexcept

  386.         : data(nullptr),

  387.           filename()

  388. #ifdef CARLA_PROPER_CPP11_SUPPORT

  389.         , shm(carla_shm_t_INIT) {}

  390. #else

  391.     {

  392.         carla_shm_init(shm);

  393.     }

  394. #endif

  395. 

  396.     ~BridgeNonRtServerControl() noexcept override

  397.     {

  398.         // should be cleared by now

  399.         CARLA_SAFE_ASSERT(data == nullptr);

  400. 

  401.         clear();

  402.     }

  403. 

  404.     bool initialize() noexcept

  405.     {

  406.         char tmpFileBase[64];

  407. 

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

  409. 

  410.         shm = carla_shm_create_temp(tmpFileBase);

  411. 

  412.         if (! carla_is_shm_valid(shm))

  413.             return false;

  414. 

  415.         if (! mapData())

  416.         {

  417.             carla_shm_close(shm);

  418.             carla_shm_init(shm);

  419.             return false;

  420.         }

  421. 

  422.         CARLA_SAFE_ASSERT(data != nullptr);

  423. 

  424.         filename = tmpFileBase;

  425.         return true;

  426.     }

  427. 

  428.     void clear() noexcept

  429.     {

  430.         filename.clear();

  431. 

  432.         if (data != nullptr)

  433.             unmapData();

  434. 

  435.         if (! carla_is_shm_valid(shm))

  436.             return;

  437. 

  438.         carla_shm_close(shm);

  439.         carla_shm_init(shm);

  440.     }

  441. 

  442.     bool mapData() noexcept

  443.     {

  444.         CARLA_SAFE_ASSERT(data == nullptr);

  445. 

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

  447.         {

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

  449.             return true;

  450.         }

  451. 

  452.         return false;

  453.     }

  454. 

  455.     void unmapData() noexcept

  456.     {

  457.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  458. 

  459.         carla_shm_unmap(shm, data);

  460.         data = nullptr;

  461. 

  462.         setRingBuffer(nullptr, false);

  463.     }

  464. 

  465.     PluginBridgeNonRtServerOpcode readOpcode() noexcept

  466.     {

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

  468.     }

  469. 

  470.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtServerControl)

  471. };

  472. 

  473. // -------------------------------------------------------------------------------------------------------------------

  474. 

  475. struct BridgeParamInfo {

  476.     float value;

  477.     CarlaString name;

  478.     CarlaString symbol;

  479.     CarlaString unit;

  480. 

  481.     BridgeParamInfo() noexcept

  482.         : value(0.0f),

  483.           name(),

  484.           symbol(),

  485.           unit() {}

  486. 

  487.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeParamInfo)

  488. };

  489. 

  490. // -------------------------------------------------------------------------------------------------------------------

  491. 

  492. class CarlaPluginBridgeThread : public CarlaThread

  493. {

  494. public:

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

  496.         : CarlaThread("CarlaPluginBridgeThread"),

  497.           kEngine(engine),

  498.           kPlugin(plugin),

  499.           fBinary(),

  500.           fLabel(),

  501.           fShmIds(),

  502.           fProcess() {}

  503. 

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

  505.     {

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

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

  508.         CARLA_SAFE_ASSERT(! isThreadRunning());

  509. 

  510.         fBinary = binary;

  511.         fShmIds = shmIds;

  512. 

  513.         if (label != nullptr)

  514.             fLabel = label;

  515.         if (fLabel.isEmpty())

  516.             fLabel = "\"\"";

  517.     }

  518. 

  519.     uintptr_t getProcessPID() const noexcept

  520.     {

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

  522. 

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

  524.     }

  525. 

  526. protected:

  527.     void run()

  528.     {

  529.         if (fProcess == nullptr)

  530.         {

  531.             fProcess = new ChildProcess();

  532.         }

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

  534.         {

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

  536.         }

  537. 

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

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

  540. 

  541.         if (name.isEmpty())

  542.             name = "(none)";

  543. 

  544.         if (filename.isEmpty())

  545.             filename = "\"\"";

  546. 

  547.         StringArray arguments;

  548. 

  549. #ifndef CARLA_OS_WIN

  550.         // start with "wine" if needed

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

  552.             arguments.add("wine");

  553. #endif

  554. 

  555.         // binary

  556.         arguments.add(fBinary);

  557. 

  558.         // plugin type

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

  560. 

  561.         // filename

  562.         arguments.add(filename);

  563. 

  564.         // label

  565.         arguments.add(fLabel);

  566. 

  567.         // uniqueId

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

  569. 

  570.         bool started;

  571. 

  572.         {

  573.             char strBuf[STR_MAX+1];

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

  575. 

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

  577.             const ScopedEngineEnvironmentLocker _seel(kEngine);

  578. 

  579. #ifdef CARLA_OS_LINUX

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

  581. 

  582.             if (oldPreload != nullptr)

  583.                 ::unsetenv("LD_PRELOAD");

  584. #endif

  585. 

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

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

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

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

  590. 

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

  592.             carla_setenv("ENGINE_OPTION_MAX_PARAMETERS", strBuf);

  593. 

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

  595.             carla_setenv("ENGINE_OPTION_UI_BRIDGES_TIMEOUT",strBuf);

  596. 

  597.             if (options.pathLADSPA != nullptr)

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

  599.             else

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

  601. 

  602.             if (options.pathDSSI != nullptr)

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

  604.             else

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

  606. 

  607.             if (options.pathLV2 != nullptr)

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

  609.             else

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

  611. 

  612.             if (options.pathVST2 != nullptr)

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

  614.             else

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

  616. 

  617.             if (options.pathVST3 != nullptr)

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

  619.             else

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

  621. 

  622.             if (options.pathGIG != nullptr)

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

  624.             else

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

  626. 

  627.             if (options.pathSF2 != nullptr)

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

  629.             else

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

  631. 

  632.             if (options.pathSFZ != nullptr)

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

  634.             else

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

  636. 

  637.             if (options.binaryDir != nullptr)

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

  639.             else

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

  641. 

  642.             if (options.resourceDir != nullptr)

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

  644.             else

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

  646. 

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

  648. 

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

  650.             carla_setenv("ENGINE_OPTION_FRONTEND_WIN_ID", strBuf);

  651. 

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

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

  654. 

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

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

  657. 

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

  659. 

  660. #ifdef CARLA_OS_LINUX

  661.             if (oldPreload != nullptr)

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

  663. #endif

  664.         }

  665. 

  666.         if (! started)

  667.         {

  668.             carla_stdout("failed!");

  669.             fProcess = nullptr;

  670.             return;

  671.         }

  672. 

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

  674.             carla_sleep(1);

  675. 

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

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

  678.         {

  679.             fProcess->waitForProcessToFinish(2000);

  680. 

  681.             if (fProcess->isRunning())

  682.             {

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

  684.                 fProcess->kill();

  685.             }

  686.             else

  687.             {

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

  689.             }

  690.         }

  691.         else

  692.         {

  693.             // forced quit, may have crashed

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

  695.             {

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

  697. 

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

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

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

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

  702.             }

  703.             else

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

  705.         }

  706. 

  707.         carla_stdout("plugin bridge finished");

  708.         fProcess = nullptr;

  709.     }

  710. 

  711. private:

  712.     CarlaEngine* const kEngine;

  713.     CarlaPlugin* const kPlugin;

  714. 

  715.     String fBinary;

  716.     String fLabel;

  717.     String fShmIds;

  718. 

  719.     ScopedPointer<ChildProcess> fProcess;

  720. 

  721.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginBridgeThread)

  722. };

  723. 

  724. // -------------------------------------------------------------------------------------------------------------------

  725. 

  726. class CarlaPluginBridge : public CarlaPlugin

  727. {

  728. public:

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

  730.         : CarlaPlugin(engine, id),

  731.           fBinaryType(btype),

  732.           fPluginType(ptype),

  733.           fInitiated(false),

  734.           fInitError(false),

  735.           fSaved(true),

  736.           fTimedOut(false),

  737.           fTimedError(false),

  738.           fProcWaitTime(0),

  739.           fLastPongTime(-1),

  740.           fBridgeBinary(),

  741.           fBridgeThread(engine, this),

  742.           fShmAudioPool(),

  743.           fShmRtClientControl(),

  744.           fShmNonRtClientControl(),

  745.           fShmNonRtServerControl(),

  746.           fInfo(),

  747.           fUniqueId(0),

  748.           fParams(nullptr)

  749.     {

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

  751. 

  752.         pData->hints |= PLUGIN_IS_BRIDGE;

  753.     }

  754. 

  755.     ~CarlaPluginBridge() override

  756.     {

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

  758. 

  759.         // close UI

  760.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  761.             pData->transientTryCounter = 0;

  762. 

  763.         pData->singleMutex.lock();

  764.         pData->masterMutex.lock();

  765. 

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

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

  768. 

  769.         if (pData->active)

  770.         {

  771.             deactivate();

  772.             pData->active = false;

  773.         }

  774. 

  775.         if (fBridgeThread.isThreadRunning())

  776.         {

  777.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientQuit);

  778.             fShmNonRtClientControl.commitWrite();

  779. 

  780.             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientQuit);

  781.             fShmRtClientControl.commitWrite();

  782. 

  783.             if (! fTimedOut)

  784.                 waitForClient("stopping", 3000);

  785.         }

  786. 

  787.         fBridgeThread.stopThread(3000);

  788. 

  789.         fShmNonRtServerControl.clear();

  790.         fShmNonRtClientControl.clear();

  791.         fShmRtClientControl.clear();

  792.         fShmAudioPool.clear();

  793. 

  794.         clearBuffers();

  795. 

  796.         fInfo.chunk.clear();

  797.     }

  798. 

  799.     // -------------------------------------------------------------------

  800.     // Information (base)

  801. 

  802.     BinaryType getBinaryType() const noexcept override

  803.     {

  804.         return fBinaryType;

  805.     }

  806. 

  807.     PluginType getType() const noexcept override

  808.     {

  809.         return fPluginType;

  810.     }

  811. 

  812.     PluginCategory getCategory() const noexcept override

  813.     {

  814.         return fInfo.category;

  815.     }

  816. 

  817.     int64_t getUniqueId() const noexcept override

  818.     {

  819.         return fUniqueId;

  820.     }

  821. 

  822.     // -------------------------------------------------------------------

  823.     // Information (count)

  824. 

  825.     uint32_t getMidiInCount() const noexcept override

  826.     {

  827.         return fInfo.mIns;

  828.     }

  829. 

  830.     uint32_t getMidiOutCount() const noexcept override

  831.     {

  832.         return fInfo.mOuts;

  833.     }

  834. 

  835.     // -------------------------------------------------------------------

  836.     // Information (current data)

  837. 

  838.     // TODO - missing getCustomData

  839. 

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

  841.     {

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

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

  844. 

  845.         waitForSaved();

  846. 

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

  848. 

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

  850.         return fInfo.chunk.size();

  851.     }

  852. 

  853.     // -------------------------------------------------------------------

  854.     // Information (per-plugin data)

  855. 

  856.     uint getOptionsAvailable() const noexcept override

  857.     {

  858.         return fInfo.optionsAvailable;

  859.     }

  860. 

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

  862.     {

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

  864. 

  865.         return fParams[parameterId].value;

  866.     }

  867. 

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

  869.     {

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

  871.     }

  872. 

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

  874.     {

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

  876.     }

  877. 

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

  879.     {

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

  881.     }

  882. 

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

  884.     {

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

  886.     }

  887. 

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

  889.     {

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

  891. 

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

  893.     }

  894. 

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

  896.     {

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

  898. 

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

  900.     }

  901. 

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

  903.     {

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

  905. 

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

  907.     }

  908. 

  909.     // -------------------------------------------------------------------

  910.     // Set data (state)

  911. 

  912.     void prepareForSave() noexcept override

  913.     {

  914.         fSaved = false;

  915. 

  916.         {

  917.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  918. 

  919.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPrepareForSave);

  920.             fShmNonRtClientControl.commitWrite();

  921.         }

  922.     }

  923. 

  924.     void waitForSaved()

  925.     {

  926.         if (fSaved)

  927.             return;

  928. 

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

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

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

  932. 

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

  934. 

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

  936.         {

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

  938. 

  939.             if (needsEngineIdle)

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

  941. 

  942.             if (fSaved)

  943.                 break;

  944. 

  945.             carla_msleep(20);

  946.         }

  947. 

  948.         if (! fSaved)

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

  950.         else

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

  952.     }

  953. 

  954.     // -------------------------------------------------------------------

  955.     // Set data (internal stuff)

  956. 

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

  958.     {

  959.         {

  960.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  961. 

  962.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetOption);

  963.             fShmNonRtClientControl.writeUInt(option);

  964.             fShmNonRtClientControl.writeBool(yesNo);

  965.             fShmNonRtClientControl.commitWrite();

  966.         }

  967. 

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

  969.     }

  970. 

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

  972.     {

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

  974. 

  975.         {

  976.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  977. 

  978.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetCtrlChannel);

  979.             fShmNonRtClientControl.writeShort(channel);

  980.             fShmNonRtClientControl.commitWrite();

  981.         }

  982. 

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

  984.     }

  985. 

  986.     // -------------------------------------------------------------------

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

  988. 

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

  990.     {

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

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

  993. 

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

  995.         fParams[parameterId].value = fixedValue;

  996. 

  997.         {

  998.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  999. 

  1000.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterValue);

  1001.             fShmNonRtClientControl.writeUInt(parameterId);

  1002.             fShmNonRtClientControl.writeFloat(value);

  1003.             fShmNonRtClientControl.commitWrite();

  1004.             fShmNonRtClientControl.waitIfDataIsReachingLimit();

  1005.         }

  1006. 

  1007.         CarlaPlugin::setParameterValue(parameterId, fixedValue, sendGui, sendOsc, sendCallback);

  1008.     }

  1009. 

  1010.     void setParameterMidiChannel(const uint32_t parameterId, const uint8_t channel, const bool sendOsc, const bool sendCallback) noexcept override

  1011.     {

  1012.         CARLA_SAFE_ASSERT_RETURN(sendOsc || sendCallback,); // never call this from RT

  1013.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  1014.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1015. 

  1016.         {

  1017.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1018. 

  1019.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterMidiChannel);

  1020.             fShmNonRtClientControl.writeUInt(parameterId);

  1021.             fShmNonRtClientControl.writeByte(channel);

  1022.             fShmNonRtClientControl.commitWrite();

  1023.         }

  1024. 

  1025.         CarlaPlugin::setParameterMidiChannel(parameterId, channel, sendOsc, sendCallback);

  1026.     }

  1027. 

  1028.     void setParameterMidiCC(const uint32_t parameterId, const int16_t cc, const bool sendOsc, const bool sendCallback) noexcept override

  1029.     {

  1030.         CARLA_SAFE_ASSERT_RETURN(sendOsc || sendCallback,); // never call this from RT

  1031.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  1032.         CARLA_SAFE_ASSERT_RETURN(cc >= -1 && cc < MAX_MIDI_CONTROL,);

  1033. 

  1034.         {

  1035.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1036. 

  1037.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterMidiCC);

  1038.             fShmNonRtClientControl.writeUInt(parameterId);

  1039.             fShmNonRtClientControl.writeShort(cc);

  1040.             fShmNonRtClientControl.commitWrite();

  1041.         }

  1042. 

  1043.         CarlaPlugin::setParameterMidiCC(parameterId, cc, sendOsc, sendCallback);

  1044.     }

  1045. 

  1046.     void setProgram(const int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  1047.     {

  1048.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback,); // never call this from RT

  1049.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->prog.count),);

  1050. 

  1051.         {

  1052.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1053. 

  1054.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetProgram);

  1055.             fShmNonRtClientControl.writeInt(index);

  1056.             fShmNonRtClientControl.commitWrite();

  1057.         }

  1058. 

  1059.         CarlaPlugin::setProgram(index, sendGui, sendOsc, sendCallback);

  1060.     }

  1061. 

  1062.     void setMidiProgram(const int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  1063.     {

  1064.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback,); // never call this from RT

  1065.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->midiprog.count),);

  1066. 

  1067.         {

  1068.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1069. 

  1070.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetMidiProgram);

  1071.             fShmNonRtClientControl.writeInt(index);

  1072.             fShmNonRtClientControl.commitWrite();

  1073.         }

  1074. 

  1075.         CarlaPlugin::setMidiProgram(index, sendGui, sendOsc, sendCallback);

  1076.     }

  1077. 

  1078.     void setCustomData(const char* const type, const char* const key, const char* const value, const bool sendGui) override

  1079.     {

  1080.         CARLA_SAFE_ASSERT_RETURN(type != nullptr && type[0] != '\0',);

  1081.         CARLA_SAFE_ASSERT_RETURN(key != nullptr && key[0] != '\0',);

  1082.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

  1083. 

  1084.         if (std::strcmp(type, CUSTOM_DATA_TYPE_PROPERTY) == 0)

  1085.             return CarlaPlugin::setCustomData(type, key, value, sendGui);

  1086. 

  1087.         if (std::strcmp(type, CUSTOM_DATA_TYPE_STRING) == 0 && std::strcmp(key, "__CarlaPingOnOff__") == 0)

  1088.         {

  1089.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1090. 

  1091.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPingOnOff);

  1092.             fShmNonRtClientControl.writeBool(std::strcmp(value, "true") == 0);

  1093.             fShmNonRtClientControl.commitWrite();

  1094. 

  1095.             carla_stdout("Carla bridge server side, OnOff ping checks => %s", value);

  1096.             return;

  1097.         }

  1098. 

  1099.         const uint32_t typeLen(static_cast<uint32_t>(std::strlen(type)));

  1100.         const uint32_t keyLen(static_cast<uint32_t>(std::strlen(key)));

  1101.         const uint32_t valueLen(static_cast<uint32_t>(std::strlen(value)));

  1102. 

  1103.         {

  1104.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1105. 

  1106.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetCustomData);

  1107. 

  1108.             fShmNonRtClientControl.writeUInt(typeLen);

  1109.             fShmNonRtClientControl.writeCustomData(type, typeLen);

  1110. 

  1111.             fShmNonRtClientControl.writeUInt(keyLen);

  1112.             fShmNonRtClientControl.writeCustomData(key, keyLen);

  1113. 

  1114.             fShmNonRtClientControl.writeUInt(valueLen);

  1115.             fShmNonRtClientControl.writeCustomData(value, valueLen);

  1116. 

  1117.             fShmNonRtClientControl.commitWrite();

  1118.         }

  1119. 

  1120.         CarlaPlugin::setCustomData(type, key, value, sendGui);

  1121.     }

  1122. 

  1123.     void setChunkData(const void* const data, const std::size_t dataSize) override

  1124.     {

  1125.         CARLA_SAFE_ASSERT_RETURN(pData->options & PLUGIN_OPTION_USE_CHUNKS,);

  1126.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  1127.         CARLA_SAFE_ASSERT_RETURN(dataSize > 0,);

  1128. 

  1129.         carla_stdout("Carla bridge server side, setChunkData 001");

  1130. 

  1131.         CarlaString dataBase64(CarlaString::asBase64(data, dataSize));

  1132.         CARLA_SAFE_ASSERT_RETURN(dataBase64.length() > 0,);

  1133. 

  1134.         String filePath(File::getSpecialLocation(File::tempDirectory).getFullPathName());

  1135. 

  1136.         filePath += CARLA_OS_SEP_STR ".CarlaChunk_";

  1137.         filePath += fShmAudioPool.filename.buffer() + 18;

  1138. 

  1139.         if (File(filePath).replaceWithText(dataBase64.buffer()))

  1140.         {

  1141.             carla_stdout("Carla bridge server side, setChunkData 002");

  1142. 

  1143.             const uint32_t ulength(static_cast<uint32_t>(filePath.length()));

  1144. 

  1145.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1146. 

  1147.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetChunkDataFile);

  1148.             fShmNonRtClientControl.writeUInt(ulength);

  1149.             fShmNonRtClientControl.writeCustomData(filePath.toRawUTF8(), ulength);

  1150.             fShmNonRtClientControl.commitWrite();

  1151. 

  1152.             carla_stdout("Carla bridge server side, setChunkData sent");

  1153.         }

  1154. 

  1155.         // save data internally as well

  1156.         fInfo.chunk.resize(dataSize);

  1157.         std::memcpy(fInfo.chunk.data(), data, dataSize);

  1158. 

  1159.         carla_stdout("Carla bridge server side, setChunkData saved locally too");

  1160.     }

  1161. 

  1162.     // -------------------------------------------------------------------

  1163.     // Set ui stuff

  1164. 

  1165.     void showCustomUI(const bool yesNo) override

  1166.     {

  1167.         {

  1168.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1169. 

  1170.             fShmNonRtClientControl.writeOpcode(yesNo ? kPluginBridgeNonRtClientShowUI : kPluginBridgeNonRtClientHideUI);

  1171.             fShmNonRtClientControl.commitWrite();

  1172.         }

  1173. 

  1174. #ifndef BUILD_BRIDGE

  1175.         if (yesNo)

  1176.         {

  1177.             pData->tryTransient();

  1178.         }

  1179.         else

  1180.         {

  1181.             pData->transientTryCounter = 0;

  1182.         }

  1183. #endif

  1184.     }

  1185. 

  1186.     void idle() override

  1187.     {

  1188.         if (fBridgeThread.isThreadRunning())

  1189.         {

  1190.             if (fInitiated && fTimedOut && pData->active)

  1191.                 setActive(false, true, true);

  1192. 

  1193.             {

  1194.                 const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1195. 

  1196.                 fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPing);

  1197.                 fShmNonRtClientControl.commitWrite();

  1198.             }

  1199. 

  1200.             try {

  1201.                 handleNonRtData();

  1202.             } CARLA_SAFE_EXCEPTION("handleNonRtData");

  1203.         }

  1204.         else if (fInitiated)

  1205.         {

  1206.             fTimedOut   = true;

  1207.             fTimedError = true;

  1208.             fInitiated  = false;

  1209.             pData->engine->callback(ENGINE_CALLBACK_PLUGIN_UNAVAILABLE, pData->id, 0, 0, 0.0f, "plugin bridge has been stopped or crashed");

  1210.         }

  1211. 

  1212.         CarlaPlugin::idle();

  1213.     }

  1214. 

  1215.     // -------------------------------------------------------------------

  1216.     // Plugin state

  1217. 

  1218.     void reload() override

  1219.     {

  1220.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr,);

  1221.         carla_debug("CarlaPluginBridge::reload() - start");

  1222. 

  1223.         const EngineProcessMode processMode(pData->engine->getProccessMode());

  1224. 

  1225.         // Safely disable plugin for reload

  1226.         const ScopedDisabler sd(this);

  1227. 

  1228.         // cleanup of previous data

  1229.         pData->audioIn.clear();

  1230.         pData->audioOut.clear();

  1231.         pData->cvIn.clear();

  1232.         pData->cvOut.clear();

  1233.         pData->event.clear();

  1234. 

  1235.         bool needsCtrlIn, needsCtrlOut;

  1236.         needsCtrlIn = needsCtrlOut = false;

  1237. 

  1238.         if (fInfo.aIns > 0)

  1239.         {

  1240.             pData->audioIn.createNew(fInfo.aIns);

  1241.         }

  1242. 

  1243.         if (fInfo.aOuts > 0)

  1244.         {

  1245.             pData->audioOut.createNew(fInfo.aOuts);

  1246.             needsCtrlIn = true;

  1247.         }

  1248. 

  1249.         if (fInfo.cvIns > 0)

  1250.         {

  1251.             pData->cvIn.createNew(fInfo.cvIns);

  1252.         }

  1253. 

  1254.         if (fInfo.cvOuts > 0)

  1255.         {

  1256.             pData->cvOut.createNew(fInfo.cvOuts);

  1257.         }

  1258. 

  1259.         if (fInfo.mIns > 0)

  1260.             needsCtrlIn = true;

  1261. 

  1262.         if (fInfo.mOuts > 0)

  1263.             needsCtrlOut = true;

  1264. 

  1265.         const uint portNameSize(pData->engine->getMaxPortNameSize());

  1266.         CarlaString portName;

  1267. 

  1268.         // Audio Ins

  1269.         for (uint32_t j=0; j < fInfo.aIns; ++j)

  1270.         {

  1271.             portName.clear();

  1272. 

  1273.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1274.             {

  1275.                 portName  = pData->name;

  1276.                 portName += ":";

  1277.             }

  1278. 

  1279.             if (fInfo.aIns > 1)

  1280.             {

  1281.                 portName += "input_";

  1282.                 portName += CarlaString(j+1);

  1283.             }

  1284.             else

  1285.                 portName += "input";

  1286. 

  1287.             portName.truncate(portNameSize);

  1288. 

  1289.             pData->audioIn.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true, j);

  1290.             pData->audioIn.ports[j].rindex = j;

  1291.         }

  1292. 

  1293.         // Audio Outs

  1294.         for (uint32_t j=0; j < fInfo.aOuts; ++j)

  1295.         {

  1296.             portName.clear();

  1297. 

  1298.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1299.             {

  1300.                 portName  = pData->name;

  1301.                 portName += ":";

  1302.             }

  1303. 

  1304.             if (fInfo.aOuts > 1)

  1305.             {

  1306.                 portName += "output_";

  1307.                 portName += CarlaString(j+1);

  1308.             }

  1309.             else

  1310.                 portName += "output";

  1311. 

  1312.             portName.truncate(portNameSize);

  1313. 

  1314.             pData->audioOut.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false, j);

  1315.             pData->audioOut.ports[j].rindex = j;

  1316.         }

  1317. 

  1318.         // TODO - CV

  1319. 

  1320.         if (needsCtrlIn)

  1321.         {

  1322.             portName.clear();

  1323. 

  1324.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1325.             {

  1326.                 portName  = pData->name;

  1327.                 portName += ":";

  1328.             }

  1329. 

  1330.             portName += "event-in";

  1331.             portName.truncate(portNameSize);

  1332. 

  1333.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true, 0);

  1334.         }

  1335. 

  1336.         if (needsCtrlOut)

  1337.         {

  1338.             portName.clear();

  1339. 

  1340.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1341.             {

  1342.                 portName  = pData->name;

  1343.                 portName += ":";

  1344.             }

  1345. 

  1346.             portName += "event-out";

  1347.             portName.truncate(portNameSize);

  1348. 

  1349.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false, 0);

  1350.         }

  1351. 

  1352.         // extra plugin hints

  1353.         pData->extraHints = 0x0;

  1354. 

  1355.         if (fInfo.mIns > 0)

  1356.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  1357. 

  1358.         if (fInfo.mOuts > 0)

  1359.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_OUT;

  1360. 

  1361.         if (fInfo.aIns <= 2 && fInfo.aOuts <= 2 && (fInfo.aIns == fInfo.aOuts || fInfo.aIns == 0 || fInfo.aOuts == 0))

  1362.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1363. 

  1364.         bufferSizeChanged(pData->engine->getBufferSize());

  1365.         reloadPrograms(true);

  1366. 

  1367.         carla_debug("CarlaPluginBridge::reload() - end");

  1368.     }

  1369. 

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

  1371.     // Plugin processing

  1372. 

  1373.     void activate() noexcept override

  1374.     {

  1375.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  1376. 

  1377.         {

  1378.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1379. 

  1380.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientActivate);

  1381.             fShmNonRtClientControl.commitWrite();

  1382.         }

  1383. 

  1384.         fTimedOut = false;

  1385. 

  1386.         try {

  1387.             waitForClient("activate", 2000);

  1388.         } CARLA_SAFE_EXCEPTION("activate - waitForClient");

  1389.     }

  1390. 

  1391.     void deactivate() noexcept override

  1392.     {

  1393.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  1394. 

  1395.         {

  1396.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1397. 

  1398.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientDeactivate);

  1399.             fShmNonRtClientControl.commitWrite();

  1400.         }

  1401. 

  1402.         fTimedOut = false;

  1403. 

  1404.         try {

  1405.             waitForClient("deactivate", 2000);

  1406.         } CARLA_SAFE_EXCEPTION("deactivate - waitForClient");

  1407.     }

  1408. 

  1409.     void process(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames) override

  1410.     {

  1411.         // --------------------------------------------------------------------------------------------------------

  1412.         // Check if active

  1413. 

  1414.         if (fTimedOut || fTimedError || ! pData->active)

  1415.         {

  1416.             // disable any output sound

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

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

  1419.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1420.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1421.             return;

  1422.         }

  1423. 

  1424.         // --------------------------------------------------------------------------------------------------------

  1425.         // Check if needs reset

  1426. 

  1427.         if (pData->needsReset)

  1428.         {

  1429.             // TODO

  1430. 

  1431.             pData->needsReset = false;

  1432.         }

  1433. 

  1434.         // --------------------------------------------------------------------------------------------------------

  1435.         // Event Input

  1436. 

  1437.         if (pData->event.portIn != nullptr)

  1438.         {

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

  1440.             // MIDI Input (External)

  1441. 

  1442.             if (pData->extNotes.mutex.tryLock())

  1443.             {

  1444.                 for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin2(); it.valid(); it.next())

  1445.                 {

  1446.                     const ExternalMidiNote& note(it.getValue());

  1447. 

  1448.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1449. 

  1450.                     uint8_t data1, data2, data3;

  1451.                     data1 = uint8_t((note.velo > 0 ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF) | (note.channel & MIDI_CHANNEL_BIT));

  1452.                     data2 = note.note;

  1453.                     data3 = note.velo;

  1454. 

  1455.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1456.                     fShmRtClientControl.writeUInt(0); // time

  1457.                     fShmRtClientControl.writeByte(0); // port

  1458.                     fShmRtClientControl.writeByte(3); // size

  1459.                     fShmRtClientControl.writeByte(data1);

  1460.                     fShmRtClientControl.writeByte(data2);

  1461.                     fShmRtClientControl.writeByte(data3);

  1462.                     fShmRtClientControl.commitWrite();

  1463.                 }

  1464. 

  1465.                 pData->extNotes.data.clear();

  1466.                 pData->extNotes.mutex.unlock();

  1467. 

  1468.             } // End of MIDI Input (External)

  1469. 

  1470.             // ----------------------------------------------------------------------------------------------------

  1471.             // Event Input (System)

  1472. 

  1473. #ifndef BUILD_BRIDGE

  1474.             bool allNotesOffSent = false;

  1475. #endif

  1476. 

  1477.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1478.             {

  1479.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1480. 

  1481.                 // Control change

  1482.                 switch (event.type)

  1483.                 {

  1484.                 case kEngineEventTypeNull:

  1485.                     break;

  1486. 

  1487.                 case kEngineEventTypeControl: {

  1488.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1489. 

  1490.                     switch (ctrlEvent.type)

  1491.                     {

  1492.                     case kEngineControlEventTypeNull:

  1493.                         break;

  1494. 

  1495.                     case kEngineControlEventTypeParameter:

  1496. #ifndef BUILD_BRIDGE

  1497.                         // Control backend stuff

  1498.                         if (event.channel == pData->ctrlChannel)

  1499.                         {

  1500.                             float value;

  1501. 

  1502.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1503.                             {

  1504.                                 value = ctrlEvent.value;

  1505.                                 setDryWet(value, false, false);

  1506.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1507.                                 break;

  1508.                             }

  1509. 

  1510.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1511.                             {

  1512.                                 value = ctrlEvent.value*127.0f/100.0f;

  1513.                                 setVolume(value, false, false);

  1514.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1515.                                 break;

  1516.                             }

  1517. 

  1518.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1519.                             {

  1520.                                 float left, right;

  1521.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1522. 

  1523.                                 if (value < 0.0f)

  1524.                                 {

  1525.                                     left  = -1.0f;

  1526.                                     right = (value*2.0f)+1.0f;

  1527.                                 }

  1528.                                 else if (value > 0.0f)

  1529.                                 {

  1530.                                     left  = (value*2.0f)-1.0f;

  1531.                                     right = 1.0f;

  1532.                                 }

  1533.                                 else

  1534.                                 {

  1535.                                     left  = -1.0f;

  1536.                                     right = 1.0f;

  1537.                                 }

  1538. 

  1539.                                 setBalanceLeft(left, false, false);

  1540.                                 setBalanceRight(right, false, false);

  1541.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1542.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1543.                                 break;

  1544.                             }

  1545.                         }

  1546. #endif

  1547.                         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventParameter);

  1548.                         fShmRtClientControl.writeUInt(event.time);

  1549.                         fShmRtClientControl.writeByte(event.channel);

  1550.                         fShmRtClientControl.writeUShort(event.ctrl.param);

  1551.                         fShmRtClientControl.writeFloat(event.ctrl.value);

  1552.                         fShmRtClientControl.commitWrite();

  1553.                         break;

  1554. 

  1555.                     case kEngineControlEventTypeMidiBank:

  1556.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1557.                         {

  1558.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiBank);

  1559.                             fShmRtClientControl.writeUInt(event.time);

  1560.                             fShmRtClientControl.writeByte(event.channel);

  1561.                             fShmRtClientControl.writeUShort(event.ctrl.param);

  1562.                             fShmRtClientControl.commitWrite();

  1563.                         }

  1564.                         break;

  1565. 

  1566.                     case kEngineControlEventTypeMidiProgram:

  1567.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1568.                         {

  1569.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiProgram);

  1570.                             fShmRtClientControl.writeUInt(event.time);

  1571.                             fShmRtClientControl.writeByte(event.channel);

  1572.                             fShmRtClientControl.writeUShort(event.ctrl.param);

  1573.                             fShmRtClientControl.commitWrite();

  1574.                         }

  1575.                         break;

  1576. 

  1577.                     case kEngineControlEventTypeAllSoundOff:

  1578.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1579.                         {

  1580.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllSoundOff);

  1581.                             fShmRtClientControl.writeUInt(event.time);

  1582.                             fShmRtClientControl.writeByte(event.channel);

  1583.                             fShmRtClientControl.commitWrite();

  1584.                         }

  1585.                         break;

  1586. 

  1587.                     case kEngineControlEventTypeAllNotesOff:

  1588.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1589.                         {

  1590. #ifndef BUILD_BRIDGE

  1591.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1592.                             {

  1593.                                 allNotesOffSent = true;

  1594.                                 sendMidiAllNotesOffToCallback();

  1595.                             }

  1596. #endif

  1597. 

  1598.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllNotesOff);

  1599.                             fShmRtClientControl.writeUInt(event.time);

  1600.                             fShmRtClientControl.writeByte(event.channel);

  1601.                             fShmRtClientControl.commitWrite();

  1602.                         }

  1603.                         break;

  1604.                     } // switch (ctrlEvent.type)

  1605.                     break;

  1606.                 } // case kEngineEventTypeControl

  1607. 

  1608.                 case kEngineEventTypeMidi: {

  1609.                     const EngineMidiEvent& midiEvent(event.midi);

  1610. 

  1611.                     if (midiEvent.size == 0 || midiEvent.size >= MAX_MIDI_VALUE)

  1612.                         continue;

  1613. 

  1614.                     const uint8_t* const midiData(midiEvent.size > EngineMidiEvent::kDataSize ? midiEvent.dataExt : midiEvent.data);

  1615. 

  1616.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiData));

  1617. 

  1618.                     if (status == MIDI_STATUS_CHANNEL_PRESSURE && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1619.                         continue;

  1620.                     if (status == MIDI_STATUS_CONTROL_CHANGE && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1621.                         continue;

  1622.                     if (status == MIDI_STATUS_POLYPHONIC_AFTERTOUCH && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1623.                         continue;

  1624.                     if (status == MIDI_STATUS_PITCH_WHEEL_CONTROL && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1625.                         continue;

  1626. 

  1627.                     // Fix bad note-off

  1628.                     if (status == MIDI_STATUS_NOTE_ON && midiData[2] == 0)

  1629.                         status = MIDI_STATUS_NOTE_OFF;

  1630. 

  1631.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1632.                     fShmRtClientControl.writeUInt(event.time);

  1633.                     fShmRtClientControl.writeByte(midiEvent.port);

  1634.                     fShmRtClientControl.writeByte(midiEvent.size);

  1635. 

  1636.                     fShmRtClientControl.writeByte(uint8_t(midiData[0] | (event.channel & MIDI_CHANNEL_BIT)));

  1637. 

  1638.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1639.                         fShmRtClientControl.writeByte(midiData[j]);

  1640. 

  1641.                     fShmRtClientControl.commitWrite();

  1642. 

  1643.                     if (status == MIDI_STATUS_NOTE_ON)

  1644.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, midiData[1], midiData[2]);

  1645.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1646.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, midiData[1], 0.0f);

  1647.                 } break;

  1648.                 }

  1649.             }

  1650. 

  1651.             pData->postRtEvents.trySplice();

  1652. 

  1653.         } // End of Event Input

  1654. 

  1655.         if (! processSingle(audioIn, audioOut, cvIn, cvOut, frames))

  1656.             return;

  1657. 

  1658.         // --------------------------------------------------------------------------------------------------------

  1659.         // Control and MIDI Output

  1660. 

  1661.         if (pData->event.portOut != nullptr)

  1662.         {

  1663.             float value;

  1664. 

  1665.             for (uint32_t k=0; k < pData->param.count; ++k)

  1666.             {

  1667.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1668.                     continue;

  1669. 

  1670.                 if (pData->param.data[k].midiCC > 0)

  1671.                 {

  1672.                     value = pData->param.ranges[k].getNormalizedValue(fParams[k].value);

  1673.                     pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), value);

  1674.                 }

  1675.             }

  1676. 

  1677.             uint8_t size;

  1678.             uint32_t time;

  1679.             const uint8_t* midiData(fShmRtClientControl.data->midiOut);

  1680. 

  1681.             for (std::size_t read=0; read<kBridgeRtClientDataMidiOutSize;)

  1682.             {

  1683.                 size = *midiData;

  1684. 

  1685.                 if (size == 0)

  1686.                     break;

  1687. 

  1688.                 // advance 8 bits (1 byte)

  1689.                 midiData = midiData + 1;

  1690. 

  1691.                 // get time as 32bit

  1692.                 time = *(const uint32_t*)midiData;

  1693. 

  1694.                 // advance 32 bits (4 bytes)

  1695.                 midiData = midiData + 4;

  1696. 

  1697.                 // store midi data advancing as needed

  1698.                 uint8_t data[size];

  1699. 

  1700.                 for (uint8_t j=0; j<size; ++j)

  1701.                     data[j] = *midiData++;

  1702. 

  1703.                 pData->event.portOut->writeMidiEvent(time, size, data);

  1704. 

  1705.                 read += 1U /* size*/ + 4U /* time */ + size;

  1706.             }

  1707. 

  1708.         } // End of Control and MIDI Output

  1709.     }

  1710. 

  1711.     bool processSingle(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames)

  1712.     {

  1713.         CARLA_SAFE_ASSERT_RETURN(! fTimedError, false);

  1714.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1715. 

  1716.         if (pData->audioIn.count > 0)

  1717.         {

  1718.             CARLA_SAFE_ASSERT_RETURN(audioIn != nullptr, false);

  1719.         }

  1720.         if (pData->audioOut.count > 0)

  1721.         {

  1722.             CARLA_SAFE_ASSERT_RETURN(audioOut != nullptr, false);

  1723.         }

  1724.         if (pData->cvIn.count > 0)

  1725.         {

  1726.             CARLA_SAFE_ASSERT_RETURN(cvIn != nullptr, false);

  1727.         }

  1728.         if (pData->cvOut.count > 0)

  1729.         {

  1730.             CARLA_SAFE_ASSERT_RETURN(cvOut != nullptr, false);

  1731.         }

  1732. 

  1733.         // --------------------------------------------------------------------------------------------------------

  1734.         // Try lock, silence otherwise

  1735. 

  1736.         if (pData->engine->isOffline())

  1737.         {

  1738.             pData->singleMutex.lock();

  1739.         }

  1740.         else if (! pData->singleMutex.tryLock())

  1741.         {

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

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

  1744.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1745.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1746.             return false;

  1747.         }

  1748. 

  1749.         // --------------------------------------------------------------------------------------------------------

  1750.         // Reset audio buffers

  1751. 

  1752.         for (uint32_t i=0; i < fInfo.aIns; ++i)

  1753.             FloatVectorOperations::copy(fShmAudioPool.data + (i * frames), audioIn[i], static_cast<int>(frames));

  1754. 

  1755.         // --------------------------------------------------------------------------------------------------------

  1756.         // TimeInfo

  1757. 

  1758.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1759.         BridgeTimeInfo& bridgeTimeInfo(fShmRtClientControl.data->timeInfo);

  1760. 

  1761.         bridgeTimeInfo.playing = timeInfo.playing;

  1762.         bridgeTimeInfo.frame   = timeInfo.frame;

  1763.         bridgeTimeInfo.usecs   = timeInfo.usecs;

  1764.         bridgeTimeInfo.valid   = timeInfo.valid;

  1765. 

  1766.         if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1767.         {

  1768.             bridgeTimeInfo.bar  = timeInfo.bbt.bar;

  1769.             bridgeTimeInfo.beat = timeInfo.bbt.beat;

  1770.             bridgeTimeInfo.tick = timeInfo.bbt.tick;

  1771. 

  1772.             bridgeTimeInfo.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1773.             bridgeTimeInfo.beatType    = timeInfo.bbt.beatType;

  1774. 

  1775.             bridgeTimeInfo.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1776.             bridgeTimeInfo.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1777.             bridgeTimeInfo.barStartTick   = timeInfo.bbt.barStartTick;

  1778.         }

  1779. 

  1780.         // --------------------------------------------------------------------------------------------------------

  1781.         // Run plugin

  1782. 

  1783.         {

  1784.             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientProcess);

  1785.             fShmRtClientControl.commitWrite();

  1786.         }

  1787. 

  1788.         waitForClient("process", fProcWaitTime);

  1789. 

  1790.         if (fTimedOut)

  1791.         {

  1792.             pData->singleMutex.unlock();

  1793.             return false;

  1794.         }

  1795. 

  1796.         for (uint32_t i=0; i < fInfo.aOuts; ++i)

  1797.             FloatVectorOperations::copy(audioOut[i], fShmAudioPool.data + ((i + fInfo.aIns) * frames), static_cast<int>(frames));

  1798. 

  1799. #ifndef BUILD_BRIDGE

  1800.         // --------------------------------------------------------------------------------------------------------

  1801.         // Post-processing (dry/wet, volume and balance)

  1802. 

  1803.         {

  1804.             const bool doVolume  = (pData->hints & PLUGIN_CAN_VOLUME) != 0 && carla_isNotEqual(pData->postProc.volume, 1.0f);

  1805.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && carla_isNotEqual(pData->postProc.dryWet, 1.0f);

  1806.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_isEqual(pData->postProc.balanceLeft, -1.0f) && carla_isEqual(pData->postProc.balanceRight, 1.0f));

  1807. 

  1808.             bool isPair;

  1809.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1810. 

  1811.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1812.             {

  1813.                 // Dry/Wet

  1814.                 if (doDryWet)

  1815.                 {

  1816.                     for (uint32_t k=0; k < frames; ++k)

  1817.                     {

  1818.                         bufValue        = audioIn[(pData->audioIn.count == 1) ? 0 : i][k];

  1819.                         audioOut[i][k] = (audioOut[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1820.                     }

  1821.                 }

  1822. 

  1823.                 // Balance

  1824.                 if (doBalance)

  1825.                 {

  1826.                     isPair = (i % 2 == 0);

  1827. 

  1828.                     if (isPair)

  1829.                     {

  1830.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1831.                         FloatVectorOperations::copy(oldBufLeft, audioOut[i], static_cast<int>(frames));

  1832.                     }

  1833. 

  1834.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1835.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1836. 

  1837.                     for (uint32_t k=0; k < frames; ++k)

  1838.                     {

  1839.                         if (isPair)

  1840.                         {

  1841.                             // left

  1842.                             audioOut[i][k]  = oldBufLeft[k]     * (1.0f - balRangeL);

  1843.                             audioOut[i][k] += audioOut[i+1][k] * (1.0f - balRangeR);

  1844.                         }

  1845.                         else

  1846.                         {

  1847.                             // right

  1848.                             audioOut[i][k]  = audioOut[i][k] * balRangeR;

  1849.                             audioOut[i][k] += oldBufLeft[k]   * balRangeL;

  1850.                         }

  1851.                     }

  1852.                 }

  1853. 

  1854.                 // Volume (and buffer copy)

  1855.                 if (doVolume)

  1856.                 {

  1857.                     for (uint32_t k=0; k < frames; ++k)

  1858.                         audioOut[i][k] *= pData->postProc.volume;

  1859.                 }

  1860.             }

  1861. 

  1862.         } // End of Post-processing

  1863. 

  1864. #endif // BUILD_BRIDGE

  1865. 

  1866.         // --------------------------------------------------------------------------------------------------------

  1867. 

  1868.         pData->singleMutex.unlock();

  1869.         return true;

  1870.     }

  1871. 

  1872.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1873.     {

  1874.         resizeAudioPool(newBufferSize);

  1875. 

  1876.         {

  1877.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1878.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  1879.             fShmNonRtClientControl.writeUInt(newBufferSize);

  1880.             fShmNonRtClientControl.commitWrite();

  1881.         }

  1882. 

  1883.         //fProcWaitTime = newBufferSize*1000/pData->engine->getSampleRate();

  1884.         fProcWaitTime = 1000;

  1885. 

  1886.         waitForClient("buffersize", 1000);

  1887.     }

  1888. 

  1889.     void sampleRateChanged(const double newSampleRate) override

  1890.     {

  1891.         {

  1892.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1893.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  1894.             fShmNonRtClientControl.writeDouble(newSampleRate);

  1895.             fShmNonRtClientControl.commitWrite();

  1896.         }

  1897. 

  1898.         //fProcWaitTime = pData->engine->getBufferSize()*1000/newSampleRate;

  1899.         fProcWaitTime = 1000;

  1900. 

  1901.         waitForClient("samplerate", 1000);

  1902.     }

  1903. 

  1904.     void offlineModeChanged(const bool isOffline) override

  1905.     {

  1906.         {

  1907.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1908.             fShmNonRtClientControl.writeOpcode(isOffline ? kPluginBridgeNonRtClientSetOffline : kPluginBridgeNonRtClientSetOnline);

  1909.             fShmNonRtClientControl.commitWrite();

  1910.         }

  1911. 

  1912.         waitForClient("offline", 1000);

  1913.     }

  1914. 

  1915.     // -------------------------------------------------------------------

  1916.     // Plugin buffers

  1917. 

  1918.     void clearBuffers() noexcept override

  1919.     {

  1920.         if (fParams != nullptr)

  1921.         {

  1922.             delete[] fParams;

  1923.             fParams = nullptr;

  1924.         }

  1925. 

  1926.         CarlaPlugin::clearBuffers();

  1927.     }

  1928. 

  1929.     // -------------------------------------------------------------------

  1930.     // Post-poned UI Stuff

  1931. 

  1932.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  1933.     {

  1934.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  1935. 

  1936.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1937. 

  1938.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiParameterChange);

  1939.         fShmNonRtClientControl.writeUInt(index);

  1940.         fShmNonRtClientControl.writeFloat(value);

  1941.         fShmNonRtClientControl.commitWrite();

  1942.     }

  1943. 

  1944.     void uiProgramChange(const uint32_t index) noexcept override

  1945.     {

  1946.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1947. 

  1948.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1949. 

  1950.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiProgramChange);

  1951.         fShmNonRtClientControl.writeUInt(index);

  1952.         fShmNonRtClientControl.commitWrite();

  1953.     }

  1954. 

  1955.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1956.     {

  1957.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1958. 

  1959.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1960. 

  1961.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiMidiProgramChange);

  1962.         fShmNonRtClientControl.writeUInt(index);

  1963.         fShmNonRtClientControl.commitWrite();

  1964.     }

  1965. 

  1966.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1967.     {

  1968.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1969.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1970.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  1971. 

  1972.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1973. 

  1974.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOn);

  1975.         fShmNonRtClientControl.writeByte(channel);

  1976.         fShmNonRtClientControl.writeByte(note);

  1977.         fShmNonRtClientControl.writeByte(velo);

  1978.         fShmNonRtClientControl.commitWrite();

  1979.     }

  1980. 

  1981.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  1982.     {

  1983.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1984.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1985. 

  1986.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1987. 

  1988.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOff);

  1989.         fShmNonRtClientControl.writeByte(channel);

  1990.         fShmNonRtClientControl.writeByte(note);

  1991.         fShmNonRtClientControl.commitWrite();

  1992.     }

  1993. 

  1994.     // -------------------------------------------------------------------

  1995. 

  1996.     void handleNonRtData()

  1997.     {

  1998.         for (; fShmNonRtServerControl.isDataAvailableForReading();)

  1999.         {

  2000.             const PluginBridgeNonRtServerOpcode opcode(fShmNonRtServerControl.readOpcode());

  2001. #ifdef DEBUG

  2002.             if (opcode != kPluginBridgeNonRtServerPong) {

  2003.                 carla_debug("CarlaPluginBridge::handleNonRtData() - got opcode: %s", PluginBridgeNonRtServerOpcode2str(opcode));

  2004.             }

  2005. #endif

  2006.             if (opcode != kPluginBridgeNonRtServerNull && fLastPongTime > 0)

  2007.                 fLastPongTime = Time::currentTimeMillis();

  2008. 

  2009.             switch (opcode)

  2010.             {

  2011.             case kPluginBridgeNonRtServerNull:

  2012.             case kPluginBridgeNonRtServerPong:

  2013.                 break;

  2014. 

  2015.             case kPluginBridgeNonRtServerPluginInfo1: {

  2016.                 // uint/category, uint/hints, uint/optionsAvailable, uint/optionsEnabled, long/uniqueId

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

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

  2019.                 const uint32_t optionAv = fShmNonRtServerControl.readUInt();

  2020.                 const uint32_t optionEn = fShmNonRtServerControl.readUInt();

  2021.                 const  int64_t uniqueId = fShmNonRtServerControl.readLong();

  2022. 

  2023.                 CARLA_SAFE_ASSERT_INT2(fUniqueId == uniqueId, fUniqueId, uniqueId);

  2024. 

  2025.                 pData->hints   = hints | PLUGIN_IS_BRIDGE;

  2026.                 pData->options = optionEn;

  2027. 

  2028.                 fInfo.category = static_cast<PluginCategory>(category);

  2029.                 fInfo.optionsAvailable = optionAv;

  2030.             }   break;

  2031. 

  2032.             case kPluginBridgeNonRtServerPluginInfo2: {

  2033.                 // uint/size, str[] (realName), uint/size, str[] (label), uint/size, str[] (maker), uint/size, str[] (copyright)

  2034. 

  2035.                 // realName

  2036.                 const uint32_t realNameSize(fShmNonRtServerControl.readUInt());

  2037.                 char realName[realNameSize+1];

  2038.                 carla_zeroChars(realName, realNameSize+1);

  2039.                 fShmNonRtServerControl.readCustomData(realName, realNameSize);

  2040. 

  2041.                 // label

  2042.                 const uint32_t labelSize(fShmNonRtServerControl.readUInt());

  2043.                 char label[labelSize+1];

  2044.                 carla_zeroChars(label, labelSize+1);

  2045.                 fShmNonRtServerControl.readCustomData(label, labelSize);

  2046. 

  2047.                 // maker

  2048.                 const uint32_t makerSize(fShmNonRtServerControl.readUInt());

  2049.                 char maker[makerSize+1];

  2050.                 carla_zeroChars(maker, makerSize+1);

  2051.                 fShmNonRtServerControl.readCustomData(maker, makerSize);

  2052. 

  2053.                 // copyright

  2054.                 const uint32_t copyrightSize(fShmNonRtServerControl.readUInt());

  2055.                 char copyright[copyrightSize+1];

  2056.                 carla_zeroChars(copyright, copyrightSize+1);

  2057.                 fShmNonRtServerControl.readCustomData(copyright, copyrightSize);

  2058. 

  2059.                 fInfo.name  = realName;

  2060.                 fInfo.label = label;

  2061.                 fInfo.maker = maker;

  2062.                 fInfo.copyright = copyright;

  2063. 

  2064.                 if (pData->name == nullptr)

  2065.                     pData->name = pData->engine->getUniquePluginName(realName);

  2066.             }   break;

  2067. 

  2068.             case kPluginBridgeNonRtServerAudioCount: {

  2069.                 // uint/ins, uint/outs

  2070.                 fInfo.aIns  = fShmNonRtServerControl.readUInt();

  2071.                 fInfo.aOuts = fShmNonRtServerControl.readUInt();

  2072.             }   break;

  2073. 

  2074.             case kPluginBridgeNonRtServerMidiCount: {

  2075.                 // uint/ins, uint/outs

  2076.                 fInfo.mIns  = fShmNonRtServerControl.readUInt();

  2077.                 fInfo.mOuts = fShmNonRtServerControl.readUInt();

  2078.             }   break;

  2079. 

  2080.             case kPluginBridgeNonRtServerParameterCount: {

  2081.                 // uint/count

  2082.                 const uint32_t count = fShmNonRtServerControl.readUInt();

  2083. 

  2084.                 // delete old data

  2085.                 pData->param.clear();

  2086. 

  2087.                 if (fParams != nullptr)

  2088.                 {

  2089.                     delete[] fParams;

  2090.                     fParams = nullptr;

  2091.                 }

  2092. 

  2093.                 if (count > 0)

  2094.                 {

  2095.                     pData->param.createNew(count, false);

  2096.                     fParams = new BridgeParamInfo[count];

  2097. 

  2098.                     // we might not receive all parameter data, so ensure range max is not 0

  2099.                     for (uint32_t i=0; i<count; ++i)

  2100.                     {

  2101.                         pData->param.ranges[i].def = 0.0f;

  2102.                         pData->param.ranges[i].min = 0.0f;

  2103.                         pData->param.ranges[i].max = 1.0f;

  2104.                         pData->param.ranges[i].step = 0.001f;

  2105.                         pData->param.ranges[i].stepSmall = 0.0001f;

  2106.                         pData->param.ranges[i].stepLarge = 0.1f;

  2107.                     }

  2108.                 }

  2109.             }   break;

  2110. 

  2111.             case kPluginBridgeNonRtServerProgramCount: {

  2112.                 // uint/count

  2113.                 pData->prog.clear();

  2114. 

  2115.                 if (const uint32_t count = fShmNonRtServerControl.readUInt())

  2116.                     pData->prog.createNew(static_cast<uint32_t>(count));

  2117. 

  2118.             }   break;

  2119. 

  2120.             case kPluginBridgeNonRtServerMidiProgramCount: {

  2121.                 // uint/count

  2122.                 pData->midiprog.clear();

  2123. 

  2124.                 if (const uint32_t count = fShmNonRtServerControl.readUInt())

  2125.                     pData->midiprog.createNew(static_cast<uint32_t>(count));

  2126. 

  2127.             }   break;

  2128. 

  2129.             case kPluginBridgeNonRtServerParameterData1: {

  2130.                 // uint/index, int/rindex, uint/type, uint/hints, int/cc

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

  2132.                 const  int32_t rindex = fShmNonRtServerControl.readInt();

  2133.                 const uint32_t type   = fShmNonRtServerControl.readUInt();

  2134.                 const uint32_t hints  = fShmNonRtServerControl.readUInt();

  2135.                 const  int16_t midiCC = fShmNonRtServerControl.readShort();

  2136. 

  2137.                 CARLA_SAFE_ASSERT_BREAK(midiCC >= -1 && midiCC < MAX_MIDI_CONTROL);

  2138.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2139. 

  2140.                 if (index < pData->param.count)

  2141.                 {

  2142.                     pData->param.data[index].type   = static_cast<ParameterType>(type);

  2143.                     pData->param.data[index].index  = static_cast<int32_t>(index);

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

  2145.                     pData->param.data[index].hints  = hints;

  2146.                     pData->param.data[index].midiCC = midiCC;

  2147.                 }

  2148.             }   break;

  2149. 

  2150.             case kPluginBridgeNonRtServerParameterData2: {

  2151.                 // uint/index, uint/size, str[] (name), uint/size, str[] (unit)

  2152.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2153. 

  2154.                 // name

  2155.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2156.                 char name[nameSize+1];

  2157.                 carla_zeroChars(name, nameSize+1);

  2158.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2159. 

  2160.                 // symbol

  2161.                 const uint32_t symbolSize(fShmNonRtServerControl.readUInt());

  2162.                 char symbol[symbolSize+1];

  2163.                 carla_zeroChars(symbol, symbolSize+1);

  2164.                 fShmNonRtServerControl.readCustomData(symbol, symbolSize);

  2165. 

  2166.                 // unit

  2167.                 const uint32_t unitSize(fShmNonRtServerControl.readUInt());

  2168.                 char unit[unitSize+1];

  2169.                 carla_zeroChars(unit, unitSize+1);

  2170.                 fShmNonRtServerControl.readCustomData(unit, unitSize);

  2171. 

  2172.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2173. 

  2174.                 if (index < pData->param.count)

  2175.                 {

  2176.                     fParams[index].name   = name;

  2177.                     fParams[index].symbol = symbol;

  2178.                     fParams[index].unit   = unit;

  2179.                 }

  2180.             }   break;

  2181. 

  2182.             case kPluginBridgeNonRtServerParameterRanges: {

  2183.                 // uint/index, float/def, float/min, float/max, float/step, float/stepSmall, float/stepLarge

  2184.                 const uint32_t index = fShmNonRtServerControl.readUInt();

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

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

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

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

  2189.                 const float stepSmall = fShmNonRtServerControl.readFloat();

  2190.                 const float stepLarge = fShmNonRtServerControl.readFloat();

  2191. 

  2192.                 CARLA_SAFE_ASSERT_BREAK(min < max);

  2193.                 CARLA_SAFE_ASSERT_BREAK(def >= min);

  2194.                 CARLA_SAFE_ASSERT_BREAK(def <= max);

  2195.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2196. 

  2197.                 if (index < pData->param.count)

  2198.                 {

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

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

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

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

  2203.                     pData->param.ranges[index].stepSmall = stepSmall;

  2204.                     pData->param.ranges[index].stepLarge = stepLarge;

  2205.                 }

  2206.             }   break;

  2207. 

  2208.             case kPluginBridgeNonRtServerParameterValue: {

  2209.                 // uint/index, float/value

  2210.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2211.                 const float    value = fShmNonRtServerControl.readFloat();

  2212. 

  2213.                 if (index < pData->param.count)

  2214.                 {

  2215.                     const float fixedValue(pData->param.getFixedValue(index, value));

  2216.                     fParams[index].value = fixedValue;

  2217. 

  2218.                     CarlaPlugin::setParameterValue(index, fixedValue, false, true, true);

  2219.                 }

  2220.             }   break;

  2221. 

  2222.             case kPluginBridgeNonRtServerParameterValue2: {

  2223.                 // uint/index, float/value

  2224.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2225.                 const float    value = fShmNonRtServerControl.readFloat();

  2226. 

  2227.                 if (index < pData->param.count)

  2228.                 {

  2229.                     const float fixedValue(pData->param.getFixedValue(index, value));

  2230.                     fParams[index].value = fixedValue;

  2231.                 }

  2232.             }   break;

  2233. 

  2234.             case kPluginBridgeNonRtServerDefaultValue: {

  2235.                 // uint/index, float/value

  2236.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2237.                 const float    value = fShmNonRtServerControl.readFloat();

  2238. 

  2239.                 if (index < pData->param.count)

  2240.                     pData->param.ranges[index].def = value;

  2241.             }   break;

  2242. 

  2243.             case kPluginBridgeNonRtServerCurrentProgram: {

  2244.                 // int/index

  2245.                 const int32_t index = fShmNonRtServerControl.readInt();

  2246. 

  2247.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

  2248.                 CARLA_SAFE_ASSERT_INT2(index < static_cast<int32_t>(pData->prog.count), index, pData->prog.count);

  2249. 

  2250.                 CarlaPlugin::setProgram(index, false, true, true);

  2251.             }   break;

  2252. 

  2253.             case kPluginBridgeNonRtServerCurrentMidiProgram: {

  2254.                 // int/index

  2255.                 const int32_t index = fShmNonRtServerControl.readInt();

  2256. 

  2257.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

  2258.                 CARLA_SAFE_ASSERT_INT2(index < static_cast<int32_t>(pData->midiprog.count), index, pData->midiprog.count);

  2259. 

  2260.                 CarlaPlugin::setMidiProgram(index, false, true, true);

  2261.             }   break;

  2262. 

  2263.             case kPluginBridgeNonRtServerProgramName: {

  2264.                 // uint/index, uint/size, str[] (name)

  2265.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2266. 

  2267.                 // name

  2268.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2269.                 char name[nameSize+1];

  2270.                 carla_zeroChars(name, nameSize+1);

  2271.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2272. 

  2273.                 CARLA_SAFE_ASSERT_INT2(index < pData->prog.count, index, pData->prog.count);

  2274. 

  2275.                 if (index < pData->prog.count)

  2276.                 {

  2277.                     if (pData->prog.names[index] != nullptr)

  2278.                         delete[] pData->prog.names[index];

  2279.                     pData->prog.names[index] = carla_strdup(name);

  2280.                 }

  2281.             }   break;

  2282. 

  2283.             case kPluginBridgeNonRtServerMidiProgramData: {

  2284.                 // uint/index, uint/bank, uint/program, uint/size, str[] (name)

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

  2286.                 const uint32_t bank    = fShmNonRtServerControl.readUInt();

  2287.                 const uint32_t program = fShmNonRtServerControl.readUInt();

  2288. 

  2289.                 // name

  2290.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2291.                 char name[nameSize+1];

  2292.                 carla_zeroChars(name, nameSize+1);

  2293.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2294. 

  2295.                 CARLA_SAFE_ASSERT_INT2(index < pData->midiprog.count, index, pData->midiprog.count);

  2296. 

  2297.                 if (index < pData->midiprog.count)

  2298.                 {

  2299.                     if (pData->midiprog.data[index].name != nullptr)

  2300.                         delete[] pData->midiprog.data[index].name;

  2301.                     pData->midiprog.data[index].bank    = bank;

  2302.                     pData->midiprog.data[index].program = program;

  2303.                     pData->midiprog.data[index].name    = carla_strdup(name);

  2304.                 }

  2305.             }   break;

  2306. 

  2307.             case kPluginBridgeNonRtServerSetCustomData: {

  2308.                 // uint/size, str[], uint/size, str[], uint/size, str[]

  2309. 

  2310.                 // type

  2311.                 const uint32_t typeSize(fShmNonRtServerControl.readUInt());

  2312.                 char type[typeSize+1];

  2313.                 carla_zeroChars(type, typeSize+1);

  2314.                 fShmNonRtServerControl.readCustomData(type, typeSize);

  2315. 

  2316.                 // key

  2317.                 const uint32_t keySize(fShmNonRtServerControl.readUInt());

  2318.                 char key[keySize+1];

  2319.                 carla_zeroChars(key, keySize+1);

  2320.                 fShmNonRtServerControl.readCustomData(key, keySize);

  2321. 

  2322.                 // value

  2323.                 const uint32_t valueSize(fShmNonRtServerControl.readUInt());

  2324.                 char value[valueSize+1];

  2325.                 carla_zeroChars(value, valueSize+1);

  2326.                 fShmNonRtServerControl.readCustomData(value, valueSize);

  2327. 

  2328.                 CarlaPlugin::setCustomData(type, key, value, false);

  2329.             }   break;

  2330. 

  2331.             case kPluginBridgeNonRtServerSetChunkDataFile: {

  2332.                 // uint/size, str[] (filename)

  2333. 

  2334.                 // chunkFilePath

  2335.                 const uint32_t chunkFilePathSize(fShmNonRtServerControl.readUInt());

  2336.                 char chunkFilePath[chunkFilePathSize+1];

  2337.                 carla_zeroChars(chunkFilePath, chunkFilePathSize+1);

  2338.                 fShmNonRtServerControl.readCustomData(chunkFilePath, chunkFilePathSize);

  2339. 

  2340.                 String realChunkFilePath(chunkFilePath);

  2341.                 carla_stdout("chunk save path BEFORE => %s", realChunkFilePath.toRawUTF8());

  2342. 

  2343. #ifndef CARLA_OS_WIN

  2344.                 // Using Wine, fix temp dir

  2345.                 if (fBinaryType == BINARY_WIN32 || fBinaryType == BINARY_WIN64)

  2346.                 {

  2347.                     // Get WINEPREFIX

  2348.                     String wineDir;

  2349.                     if (const char* const WINEPREFIX = getenv("WINEPREFIX"))

  2350.                         wineDir = String(WINEPREFIX);

  2351.                     else

  2352.                         wineDir = File::getSpecialLocation(File::userHomeDirectory).getFullPathName() + "/.wine";

  2353. 

  2354.                     const StringArray driveLetterSplit(StringArray::fromTokens(realChunkFilePath, ":/", ""));

  2355. 

  2356.                     realChunkFilePath  = wineDir;

  2357.                     realChunkFilePath += "/drive_";

  2358.                     realChunkFilePath += driveLetterSplit[0].toLowerCase();

  2359.                     realChunkFilePath += "/";

  2360.                     realChunkFilePath += driveLetterSplit[1];

  2361. 

  2362.                     realChunkFilePath  = realChunkFilePath.replace("\\", "/");

  2363.                     carla_stdout("chunk save path AFTER => %s", realChunkFilePath.toRawUTF8());

  2364.                 }

  2365. #endif

  2366. 

  2367.                 File chunkFile(realChunkFilePath);

  2368. 

  2369.                 if (chunkFile.existsAsFile())

  2370.                 {

  2371.                     fInfo.chunk = carla_getChunkFromBase64String(chunkFile.loadFileAsString().toRawUTF8());

  2372.                     chunkFile.deleteFile();

  2373.                     carla_stderr("chunk data final");

  2374.                 }

  2375.             }   break;

  2376. 

  2377.             case kPluginBridgeNonRtServerSetLatency: {

  2378.                 // uint

  2379.             }   break;

  2380. 

  2381.             case kPluginBridgeNonRtServerReady:

  2382.                 fInitiated = true;

  2383.                 break;

  2384. 

  2385.             case kPluginBridgeNonRtServerSaved:

  2386.                 fSaved = true;

  2387.                 break;

  2388. 

  2389.             case kPluginBridgeNonRtServerUiClosed:

  2390.                 pData->transientTryCounter = 0;

  2391.                 pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2392.                 break;

  2393. 

  2394.             case kPluginBridgeNonRtServerError: {

  2395.                 // error

  2396.                 const uint32_t errorSize(fShmNonRtServerControl.readUInt());

  2397.                 char error[errorSize+1];

  2398.                 carla_zeroChars(error, errorSize+1);

  2399.                 fShmNonRtServerControl.readCustomData(error, errorSize);

  2400. 

  2401.                 if (fInitiated)

  2402.                 {

  2403.                     pData->engine->callback(ENGINE_CALLBACK_ERROR, pData->id, 0, 0, 0.0f, error);

  2404. 

  2405.                     // just in case

  2406.                     pData->engine->setLastError(error);

  2407.                     fInitError = true;

  2408.                 }

  2409.                 else

  2410.                 {

  2411.                     pData->engine->setLastError(error);

  2412.                     fInitError = true;

  2413.                     fInitiated = true;

  2414.                 }

  2415.             }   break;

  2416.             }

  2417.         }

  2418.     }

  2419. 

  2420.     // -------------------------------------------------------------------

  2421. 

  2422.     uintptr_t getUiBridgeProcessId() const noexcept override

  2423.     {

  2424.         return fBridgeThread.getProcessPID();

  2425.     }

  2426. 

  2427.     const void* getExtraStuff() const noexcept override

  2428.     {

  2429.         return fBridgeBinary.isNotEmpty() ? fBridgeBinary.buffer() : nullptr;

  2430.     }

  2431. 

  2432.     // -------------------------------------------------------------------

  2433. 

  2434.     bool init(const char* const filename, const char* const name, const char* const label, const int64_t uniqueId, const char* const bridgeBinary)

  2435.     {

  2436.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2437. 

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

  2439.         // first checks

  2440. 

  2441.         if (pData->client != nullptr)

  2442.         {

  2443.             pData->engine->setLastError("Plugin client is already registered");

  2444.             return false;

  2445.         }

  2446. 

  2447.         if (bridgeBinary == nullptr || bridgeBinary[0] == '\0')

  2448.         {

  2449.             pData->engine->setLastError("null bridge binary");

  2450.             return false;

  2451.         }

  2452. 

  2453.         // ---------------------------------------------------------------

  2454.         // set info

  2455. 

  2456.         if (name != nullptr && name[0] != '\0')

  2457.             pData->name = pData->engine->getUniquePluginName(name);

  2458. 

  2459.         if (filename != nullptr && filename[0] != '\0')

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

  2461.         else

  2462.             pData->filename = carla_strdup("");

  2463. 

  2464.         fUniqueId     = uniqueId;

  2465.         fBridgeBinary = bridgeBinary;

  2466. 

  2467.         std::srand(static_cast<uint>(std::time(nullptr)));

  2468. 

  2469.         // ---------------------------------------------------------------

  2470.         // init sem/shm

  2471. 

  2472.         if (! fShmAudioPool.initialize())

  2473.         {

  2474.             carla_stdout("Failed to initialize shared memory audio pool");

  2475.             return false;

  2476.         }

  2477. 

  2478.         if (! fShmRtClientControl.initialize())

  2479.         {

  2480.             carla_stdout("Failed to initialize RT client control");

  2481.             fShmAudioPool.clear();

  2482.             return false;

  2483.         }

  2484. 

  2485.         if (! fShmNonRtClientControl.initialize())

  2486.         {

  2487.             carla_stdout("Failed to initialize Non-RT client control");

  2488.             fShmRtClientControl.clear();

  2489.             fShmAudioPool.clear();

  2490.             return false;

  2491.         }

  2492. 

  2493.         if (! fShmNonRtServerControl.initialize())

  2494.         {

  2495.             carla_stdout("Failed to initialize Non-RT server control");

  2496.             fShmNonRtClientControl.clear();

  2497.             fShmRtClientControl.clear();

  2498.             fShmAudioPool.clear();

  2499.             return false;

  2500.         }

  2501. 

  2502.         // ---------------------------------------------------------------

  2503. 

  2504.         carla_stdout("Carla Server Info:");

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

  2506.         carla_stdout("  sizeof(BridgeNonRtClientData): " P_SIZE, sizeof(BridgeNonRtClientData));

  2507.         carla_stdout("  sizeof(BridgeNonRtServerData): " P_SIZE, sizeof(BridgeNonRtServerData));

  2508. 

  2509.         // initial values

  2510.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientNull);

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

  2512.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeNonRtClientData)));

  2513.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeNonRtServerData)));

  2514. 

  2515.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  2516.         fShmNonRtClientControl.writeUInt(pData->engine->getBufferSize());

  2517. 

  2518.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  2519.         fShmNonRtClientControl.writeDouble(pData->engine->getSampleRate());

  2520. 

  2521.         fShmNonRtClientControl.commitWrite();

  2522. 

  2523.         // testing dummy message

  2524.         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientNull);

  2525.         fShmRtClientControl.commitWrite();

  2526. 

  2527.         // init bridge thread

  2528.         {

  2529.             char shmIdsStr[6*4+1];

  2530.             carla_zeroChars(shmIdsStr, 6*4+1);

  2531. 

  2532.             std::strncpy(shmIdsStr+6*0, &fShmAudioPool.filename[fShmAudioPool.filename.length()-6], 6);

  2533.             std::strncpy(shmIdsStr+6*1, &fShmRtClientControl.filename[fShmRtClientControl.filename.length()-6], 6);

  2534.             std::strncpy(shmIdsStr+6*2, &fShmNonRtClientControl.filename[fShmNonRtClientControl.filename.length()-6], 6);

  2535.             std::strncpy(shmIdsStr+6*3, &fShmNonRtServerControl.filename[fShmNonRtServerControl.filename.length()-6], 6);

  2536. 

  2537.             fBridgeThread.setData(bridgeBinary, label, shmIdsStr);

  2538.             fBridgeThread.startThread();

  2539.         }

  2540. 

  2541.         fInitiated = false;

  2542.         fLastPongTime = Time::currentTimeMillis();

  2543.         CARLA_SAFE_ASSERT(fLastPongTime > 0);

  2544. 

  2545.         static bool sFirstInit = true;

  2546. 

  2547.         int64_t timeoutEnd = 5000;

  2548. 

  2549.         if (sFirstInit)

  2550.             timeoutEnd *= 2;

  2551. #ifndef CARLA_OS_WIN

  2552.          if (fBinaryType == BINARY_WIN32 || fBinaryType == BINARY_WIN64)

  2553.             timeoutEnd *= 2;

  2554. #endif

  2555.         sFirstInit = false;

  2556. 

  2557.         const bool needsEngineIdle = pData->engine->getType() != kEngineTypePlugin;

  2558. 

  2559.         for (; Time::currentTimeMillis() < fLastPongTime + timeoutEnd && fBridgeThread.isThreadRunning();)

  2560.         {

  2561.             pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2562. 

  2563.             if (needsEngineIdle)

  2564.                 pData->engine->idle();

  2565. 

  2566.             idle();

  2567. 

  2568.             if (fInitiated)

  2569.                 break;

  2570. 

  2571.             carla_msleep(20);

  2572.         }

  2573. 

  2574.         fLastPongTime = -1;

  2575. 

  2576.         if (fInitError || ! fInitiated)

  2577.         {

  2578.             fBridgeThread.stopThread(6000);

  2579. 

  2580.             if (! fInitError)

  2581.                 pData->engine->setLastError("Timeout while waiting for a response from plugin-bridge\n(or the plugin crashed on initialization?)");

  2582. 

  2583.             return false;

  2584.         }

  2585. 

  2586.         // ---------------------------------------------------------------

  2587.         // register client

  2588. 

  2589.         if (pData->name == nullptr)

  2590.         {

  2591.             if (label != nullptr && label[0] != '\0')

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

  2593.             else

  2594.                 pData->name = pData->engine->getUniquePluginName("unknown");

  2595.         }

  2596. 

  2597.         pData->client = pData->engine->addClient(this);

  2598. 

  2599.         if (pData->client == nullptr || ! pData->client->isOk())

  2600.         {

  2601.             pData->engine->setLastError("Failed to register plugin client");

  2602.             return false;

  2603.         }

  2604. 

  2605.         return true;

  2606.     }

  2607. 

  2608. private:

  2609.     const BinaryType fBinaryType;

  2610.     const PluginType fPluginType;

  2611. 

  2612.     bool fInitiated;

  2613.     bool fInitError;

  2614.     bool fSaved;

  2615.     bool fTimedOut;

  2616.     bool fTimedError;

  2617.     uint fProcWaitTime;

  2618. 

  2619.     int64_t fLastPongTime;

  2620. 

  2621.     CarlaString             fBridgeBinary;

  2622.     CarlaPluginBridgeThread fBridgeThread;

  2623. 

  2624.     BridgeAudioPool          fShmAudioPool;

  2625.     BridgeRtClientControl    fShmRtClientControl;

  2626.     BridgeNonRtClientControl fShmNonRtClientControl;

  2627.     BridgeNonRtServerControl fShmNonRtServerControl;

  2628. 

  2629.     struct Info {

  2630.         uint32_t aIns, aOuts;

  2631.         uint32_t cvIns, cvOuts;

  2632.         uint32_t mIns, mOuts;

  2633.         PluginCategory category;

  2634.         uint optionsAvailable;

  2635.         CarlaString name;

  2636.         CarlaString label;

  2637.         CarlaString maker;

  2638.         CarlaString copyright;

  2639.         std::vector<uint8_t> chunk;

  2640. 

  2641.         Info()

  2642.             : aIns(0),

  2643.               aOuts(0),

  2644.               cvIns(0),

  2645.               cvOuts(0),

  2646.               mIns(0),

  2647.               mOuts(0),

  2648.               category(PLUGIN_CATEGORY_NONE),

  2649.               optionsAvailable(0),

  2650.               name(),

  2651.               label(),

  2652.               maker(),

  2653.               copyright(),

  2654.               chunk() {}

  2655.     } fInfo;

  2656. 

  2657.     int64_t fUniqueId;

  2658. 

  2659.     BridgeParamInfo* fParams;

  2660. 

  2661.     void resizeAudioPool(const uint32_t bufferSize)

  2662.     {

  2663.         fShmAudioPool.resize(bufferSize, fInfo.aIns+fInfo.aOuts, fInfo.cvIns+fInfo.cvOuts);

  2664. 

  2665.         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientSetAudioPool);

  2666.         fShmRtClientControl.writeULong(static_cast<uint64_t>(fShmAudioPool.size));

  2667.         fShmRtClientControl.commitWrite();

  2668. 

  2669.         waitForClient("resize-pool", 5000);

  2670.     }

  2671. 

  2672.     void waitForClient(const char* const action, const uint msecs)

  2673.     {

  2674.         CARLA_SAFE_ASSERT_RETURN(! fTimedOut,);

  2675.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  2676. 

  2677.         if (fShmRtClientControl.waitForClient(msecs))

  2678.             return;

  2679. 

  2680.         fTimedOut = true;

  2681.         carla_stderr("waitForClient(%s) timed out", action);

  2682.     }

  2683. 

  2684.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginBridge)

  2685. };

  2686. 

  2687. CARLA_BACKEND_END_NAMESPACE

  2688. 

  2689. // -------------------------------------------------------------------------------------------------------------------

  2690. 

  2691. CARLA_BACKEND_START_NAMESPACE

  2692. 

  2693. CarlaPlugin* CarlaPlugin::newBridge(const Initializer& init, BinaryType btype, PluginType ptype, const char* const bridgeBinary)

  2694. {

  2695.     carla_debug("CarlaPlugin::newBridge({%p, \"%s\", \"%s\", \"%s\"}, %s, %s, \"%s\")", init.engine, init.filename, init.name, init.label, BinaryType2Str(btype), PluginType2Str(ptype), bridgeBinary);

  2696. 

  2697.     if (bridgeBinary == nullptr || bridgeBinary[0] == '\0')

  2698.     {

  2699.         init.engine->setLastError("Bridge not possible, bridge-binary not found");

  2700.         return nullptr;

  2701.     }

  2702. 

  2703.     CarlaPluginBridge* const plugin(new CarlaPluginBridge(init.engine, init.id, btype, ptype));

  2704. 

  2705.     if (! plugin->init(init.filename, init.name, init.label, init.uniqueId, bridgeBinary))

  2706.     {

  2707.         delete plugin;

  2708.         return nullptr;

  2709.     }

  2710. 

  2711.     return plugin;

  2712. }

  2713. 

  2714. CARLA_BACKEND_END_NAMESPACE

  2715. 

  2716. // -------------------------------------------------------------------------------------------------------------------