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

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  1. /*

  2.  * Carla Plugin Bridge

  3.  * Copyright (C) 2011-2014 Filipe Coelho <falktx@falktx.com>

  4.  *

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

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

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

  8.  * the License, or any later version.

  9.  *

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

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

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

  13.  * GNU General Public License for more details.

  14.  *

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

  16.  */

  17. 

  18. #ifdef BUILD_BRIDGE

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

  20. #endif

  21. 

  22. #include "CarlaPluginInternal.hpp"

  23. 

  24. #include "CarlaBackendUtils.hpp"

  25. #include "CarlaBase64Utils.hpp"

  26. #include "CarlaBridgeUtils.hpp"

  27. #include "CarlaEngineUtils.hpp"

  28. #include "CarlaMathUtils.hpp"

  29. #include "CarlaShmUtils.hpp"

  30. #include "CarlaThread.hpp"

  31. 

  32. #include "jackbridge/JackBridge.hpp"

  33. 

  34. #include <ctime>

  35. 

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

  37. 

  38. using juce::ChildProcess;

  39. using juce::File;

  40. using juce::ScopedPointer;

  41. using juce::String;

  42. using juce::StringArray;

  43. 

  44. CARLA_BACKEND_START_NAMESPACE

  45. 

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

  47. 

  48. struct BridgeAudioPool {

  49.     CarlaString filename;

  50.     std::size_t size;

  51.     float* data;

  52.     shm_t shm;

  53. 

  54.     BridgeAudioPool() noexcept

  55.         : filename(),

  56.           size(0),

  57.           data(nullptr)

  58. #ifdef CARLA_PROPER_CPP11_SUPPORT

  59.         , shm(shm_t_INIT) {}

  60. #else

  61.     {

  62.         shm = shm_t_INIT;

  63.     }

  64. #endif

  65. 

  66.     ~BridgeAudioPool() noexcept

  67.     {

  68.         // should be cleared by now

  69.         CARLA_SAFE_ASSERT(data == nullptr);

  70. 

  71.         clear();

  72.     }

  73. 

  74.     bool initialize() noexcept

  75.     {

  76.         char tmpFileBase[64];

  77. 

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

  79. 

  80.         shm = carla_shm_create_temp(tmpFileBase);

  81. 

  82.         if (! carla_is_shm_valid(shm))

  83.             return false;

  84. 

  85.         filename = tmpFileBase;

  86.         return true;

  87.     }

  88. 

  89.     void clear() noexcept

  90.     {

  91.         filename.clear();

  92. 

  93.         if (! carla_is_shm_valid(shm))

  94.         {

  95.             CARLA_SAFE_ASSERT(data == nullptr);

  96.             return;

  97.         }

  98. 

  99.         if (data != nullptr)

  100.         {

  101.             carla_shm_unmap(shm, data);

  102.             data = nullptr;

  103.         }

  104. 

  105.         size = 0;

  106.         carla_shm_close(shm);

  107.         carla_shm_init(shm);

  108.     }

  109. 

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

  111.     {

  112.         CARLA_SAFE_ASSERT_RETURN(carla_is_shm_valid(shm),);

  113. 

  114.         if (data != nullptr)

  115.             carla_shm_unmap(shm, data);

  116. 

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

  118. 

  119.         if (size == 0)

  120.             size = sizeof(float);

  121. 

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

  123.     }

  124. 

  125.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeAudioPool)

  126. };

  127. 

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

  129. 

  130. struct BridgeRtClientControl : public CarlaRingBufferControl<SmallStackBuffer> {

  131.     BridgeRtClientData* data;

  132.     CarlaString filename;

  133.     bool needsSemDestroy;

  134.     shm_t shm;

  135. 

  136.     BridgeRtClientControl()

  137.         : data(nullptr),

  138.           filename(),

  139.           needsSemDestroy(false),

  140. #ifdef CARLA_PROPER_CPP11_SUPPORT

  141.           shm(shm_t_INIT) {}

  142. #else

  143.     {

  144.         shm = shm_t_INIT;

  145.     }

  146. #endif

  147. 

  148.     ~BridgeRtClientControl() noexcept override

  149.     {

  150.         // should be cleared by now

  151.         CARLA_SAFE_ASSERT(data == nullptr);

  152. 

  153.         clear();

  154.     }

  155. 

  156.     bool initialize() noexcept

  157.     {

  158.         char tmpFileBase[64];

  159. 

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

  161. 

  162.         shm = carla_shm_create_temp(tmpFileBase);

  163. 

  164.         if (! carla_is_shm_valid(shm))

  165.             return false;

  166. 

  167.         if (! mapData())

  168.         {

  169.             carla_shm_close(shm);

  170.             carla_shm_init(shm);

  171.             return false;

  172.         }

  173. 

  174.         CARLA_SAFE_ASSERT(data != nullptr);

  175. 

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

  177.         {

  178.             unmapData();

  179.             carla_shm_close(shm);

  180.             carla_shm_init(shm);

  181.             return false;

  182.         }

  183. 

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

  185.         {

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

  187.             unmapData();

  188.             carla_shm_close(shm);

  189.             carla_shm_init(shm);

  190.             return false;

  191.         }

  192. 

  193.         filename = tmpFileBase;

  194.         needsSemDestroy = true;

  195.         return true;

  196.     }

  197. 

  198.     void clear() noexcept

  199.     {

  200.         filename.clear();

  201. 

  202.         if (needsSemDestroy)

  203.         {

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

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

  206.             needsSemDestroy = false;

  207.         }

  208. 

  209.         if (data != nullptr)

  210.             unmapData();

  211. 

  212.         if (! carla_is_shm_valid(shm))

  213.             return;

  214. 

  215.         carla_shm_close(shm);

  216.         carla_shm_init(shm);

  217.     }

  218. 

  219.     bool mapData() noexcept

  220.     {

  221.         CARLA_SAFE_ASSERT(data == nullptr);

  222. 

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

  224.         {

  225.             carla_zeroStruct(data->sem);

  226.             carla_zeroStruct(data->timeInfo);

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

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

  229.             return true;

  230.         }

  231. 

  232.         return false;

  233.     }

  234. 

  235.     void unmapData() noexcept

  236.     {

  237.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  238. 

  239.         carla_shm_unmap(shm, data);

  240.         data = nullptr;

  241. 

  242.         setRingBuffer(nullptr, false);

  243.     }

  244. 

  245.     bool waitForClient(const uint secs) noexcept

  246.     {

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

  248. 

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

  250. 

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

  252.     }

  253. 

  254.     void writeOpcode(const PluginBridgeRtClientOpcode opcode) noexcept

  255.     {

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

  257.     }

  258. 

  259.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeRtClientControl)

  260. };

  261. 

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

  263. 

  264. struct BridgeNonRtClientControl : public CarlaRingBufferControl<BigStackBuffer> {

  265.     BridgeNonRtClientData* data;

  266.     CarlaString filename;

  267.     CarlaMutex mutex;

  268.     shm_t shm;

  269. 

  270.     BridgeNonRtClientControl() noexcept

  271.         : data(nullptr),

  272.           filename(),

  273.           mutex()

  274. #ifdef CARLA_PROPER_CPP11_SUPPORT

  275.         , shm(shm_t_INIT) {}

  276. #else

  277.     {

  278.         shm = shm_t_INIT;

  279.     }

  280. #endif

  281. 

  282.     ~BridgeNonRtClientControl() noexcept override

  283.     {

  284.         // should be cleared by now

  285.         CARLA_SAFE_ASSERT(data == nullptr);

  286. 

  287.         clear();

  288.     }

  289. 

  290.     bool initialize() noexcept

  291.     {

  292.         char tmpFileBase[64];

  293. 

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

  295. 

  296.         shm = carla_shm_create_temp(tmpFileBase);

  297. 

  298.         if (! carla_is_shm_valid(shm))

  299.             return false;

  300. 

  301.         if (! mapData())

  302.         {

  303.             carla_shm_close(shm);

  304.             carla_shm_init(shm);

  305.             return false;

  306.         }

  307. 

  308.         CARLA_SAFE_ASSERT(data != nullptr);

  309. 

  310.         filename = tmpFileBase;

  311.         return true;

  312.     }

  313. 

  314.     void clear() noexcept

  315.     {

  316.         filename.clear();

  317. 

  318.         if (data != nullptr)

  319.             unmapData();

  320. 

  321.         if (! carla_is_shm_valid(shm))

  322.             return;

  323. 

  324.         carla_shm_close(shm);

  325.         carla_shm_init(shm);

  326.     }

  327. 

  328.     bool mapData() noexcept

  329.     {

  330.         CARLA_SAFE_ASSERT(data == nullptr);

  331. 

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

  333.         {

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

  335.             return true;

  336.         }

  337. 

  338.         return false;

  339.     }

  340. 

  341.     void unmapData() noexcept

  342.     {

  343.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  344. 

  345.         carla_shm_unmap(shm, data);

  346.         data = nullptr;

  347. 

  348.         setRingBuffer(nullptr, false);

  349.     }

  350. 

  351.     void writeOpcode(const PluginBridgeNonRtClientOpcode opcode) noexcept

  352.     {

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

  354.     }

  355. 

  356.     void waitIfDataIsReachingLimit() noexcept

  357.     {

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

  359.             return;

  360. 

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

  362.         {

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

  364.             {

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

  366.                 writeOpcode(kPluginBridgeNonRtClientPing);

  367.                 commitWrite();

  368.                 return;

  369.             }

  370.             carla_msleep(20);

  371.         }

  372. 

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

  374.     }

  375. 

  376.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtClientControl)

  377. };

  378. 

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

  380. 

  381. struct BridgeNonRtServerControl : public CarlaRingBufferControl<HugeStackBuffer> {

  382.     BridgeNonRtServerData* data;

  383.     CarlaString filename;

  384.     shm_t shm;

  385. 

  386.     BridgeNonRtServerControl() noexcept

  387.         : data(nullptr),

  388.           filename()

  389. #ifdef CARLA_PROPER_CPP11_SUPPORT

  390.         , shm(shm_t_INIT) {}

  391. #else

  392.     {

  393.         shm = shm_t_INIT;

  394.     }

  395. #endif

  396. 

  397.     ~BridgeNonRtServerControl() noexcept override

  398.     {

  399.         // should be cleared by now

  400.         CARLA_SAFE_ASSERT(data == nullptr);

  401. 

  402.         clear();

  403.     }

  404. 

  405.     bool initialize() noexcept

  406.     {

  407.         char tmpFileBase[64];

  408. 

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

  410. 

  411.         shm = carla_shm_create_temp(tmpFileBase);

  412. 

  413.         if (! carla_is_shm_valid(shm))

  414.             return false;

  415. 

  416.         if (! mapData())

  417.         {

  418.             carla_shm_close(shm);

  419.             carla_shm_init(shm);

  420.             return false;

  421.         }

  422. 

  423.         CARLA_SAFE_ASSERT(data != nullptr);

  424. 

  425.         filename = tmpFileBase;

  426.         return true;

  427.     }

  428. 

  429.     void clear() noexcept

  430.     {

  431.         filename.clear();

  432. 

  433.         if (data != nullptr)

  434.             unmapData();

  435. 

  436.         if (! carla_is_shm_valid(shm))

  437.             return;

  438. 

  439.         carla_shm_close(shm);

  440.         carla_shm_init(shm);

  441.     }

  442. 

  443.     bool mapData() noexcept

  444.     {

  445.         CARLA_SAFE_ASSERT(data == nullptr);

  446. 

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

  448.         {

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

  450.             return true;

  451.         }

  452. 

  453.         return false;

  454.     }

  455. 

  456.     void unmapData() noexcept

  457.     {

  458.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  459. 

  460.         carla_shm_unmap(shm, data);

  461.         data = nullptr;

  462. 

  463.         setRingBuffer(nullptr, false);

  464.     }

  465. 

  466.     PluginBridgeNonRtServerOpcode readOpcode() noexcept

  467.     {

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

  469.     }

  470. 

  471.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtServerControl)

  472. };

  473. 

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

  475. 

  476. struct BridgeParamInfo {

  477.     float value;

  478.     CarlaString name;

  479.     CarlaString symbol;

  480.     CarlaString unit;

  481. 

  482.     BridgeParamInfo() noexcept

  483.         : value(0.0f),

  484.           name(),

  485.           symbol(),

  486.           unit() {}

  487. 

  488.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeParamInfo)

  489. };

  490. 

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

  492. 

  493. class CarlaPluginBridgeThread : public CarlaThread

  494. {

  495. public:

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

  497.         : CarlaThread("CarlaPluginBridgeThread"),

  498.           kEngine(engine),

  499.           kPlugin(plugin),

  500.           fBinary(),

  501.           fLabel(),

  502.           fShmIds(),

  503.           fProcess(),

  504.           leakDetector_CarlaPluginBridgeThread() {}

  505. 

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

  507.     {

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

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

  510.         CARLA_SAFE_ASSERT(! isThreadRunning());

  511. 

  512.         fBinary = binary;

  513.         fShmIds = shmIds;

  514. 

  515.         if (label != nullptr)

  516.             fLabel = label;

  517.         if (fLabel.isEmpty())

  518.             fLabel = "\"\"";

  519.     }

  520. 

  521.     uintptr_t getProcessPID() const noexcept

  522.     {

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

  524. 

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

  526.     }

  527. 

  528. protected:

  529.     void run()

  530.     {

  531.         if (fProcess == nullptr)

  532.         {

  533.             fProcess = new ChildProcess();

  534.         }

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

  536.         {

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

  538.         }

  539. 

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

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

  542. 

  543.         if (name.isEmpty())

  544.             name = "(none)";

  545. 

  546.         if (filename.isEmpty())

  547.             filename = "\"\"";

  548. 

  549.         StringArray arguments;

  550. 

  551. #ifndef CARLA_OS_WIN

  552.         // start with "wine" if needed

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

  554.             arguments.add("wine");

  555. #endif

  556. 

  557.         // binary

  558.         arguments.add(fBinary);

  559. 

  560.         // plugin type

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

  562. 

  563.         // filename

  564.         arguments.add(filename);

  565. 

  566.         // label

  567.         arguments.add(fLabel);

  568. 

  569.         // uniqueId

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

  571. 

  572.         bool started;

  573. 

  574.         {

  575.             char strBuf[STR_MAX+1];

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

  577. 

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

  579.             const ScopedEngineEnvironmentLocker _seel(kEngine);

  580. 

  581. #ifdef CARLA_OS_LINUX

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

  583. 

  584.             if (oldPreload != nullptr)

  585.                 ::unsetenv("LD_PRELOAD");

  586. #endif

  587. 

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

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

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

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

  592. 

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

  594.             carla_setenv("ENGINE_OPTION_MAX_PARAMETERS", strBuf);

  595. 

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

  597.             carla_setenv("ENGINE_OPTION_UI_BRIDGES_TIMEOUT",strBuf);

  598. 

  599.             if (options.pathLADSPA != nullptr)

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

  601.             else

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

  603. 

  604.             if (options.pathDSSI != nullptr)

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

  606.             else

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

  608. 

  609.             if (options.pathLV2 != nullptr)

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

  611.             else

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

  613. 

  614.             if (options.pathVST2 != nullptr)

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

  616.             else

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

  618. 

  619.             if (options.pathVST3 != nullptr)

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

  621.             else

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

  623. 

  624.             if (options.pathAU != nullptr)

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

  626.             else

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

  628. 

  629.             if (options.pathGIG != nullptr)

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

  631.             else

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

  633. 

  634.             if (options.pathSF2 != nullptr)

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

  636.             else

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

  638. 

  639.             if (options.pathSFZ != nullptr)

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

  641.             else

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

  643. 

  644.             if (options.binaryDir != nullptr)

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

  646.             else

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

  648. 

  649.             if (options.resourceDir != nullptr)

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

  651.             else

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

  653. 

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

  655. 

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

  657.             carla_setenv("ENGINE_OPTION_FRONTEND_WIN_ID", strBuf);

  658. 

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

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

  661. 

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

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

  664. 

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

  666. 

  667. #ifdef CARLA_OS_LINUX

  668.             if (oldPreload != nullptr)

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

  670. #endif

  671.         }

  672. 

  673.         if (! started)

  674.         {

  675.             carla_stdout("failed!");

  676.             fProcess = nullptr;

  677.             return;

  678.         }

  679. 

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

  681.             carla_sleep(1);

  682. 

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

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

  685.         {

  686.             fProcess->waitForProcessToFinish(2000);

  687. 

  688.             if (fProcess->isRunning())

  689.             {

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

  691.                 fProcess->kill();

  692.             }

  693.             else

  694.             {

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

  696.             }

  697.         }

  698.         else

  699.         {

  700.             // forced quit, may have crashed

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

  702.             {

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

  704. 

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

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

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

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

  709.             }

  710.             else

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

  712.         }

  713. 

  714.         carla_stdout("plugin bridge finished");

  715.         fProcess = nullptr;

  716.     }

  717. 

  718. private:

  719.     CarlaEngine* const kEngine;

  720.     CarlaPlugin* const kPlugin;

  721. 

  722.     String fBinary;

  723.     String fLabel;

  724.     String fShmIds;

  725. 

  726.     ScopedPointer<ChildProcess> fProcess;

  727. 

  728.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginBridgeThread)

  729. };

  730. 

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

  732. 

  733. class CarlaPluginBridge : public CarlaPlugin

  734. {

  735. public:

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

  737.         : CarlaPlugin(engine, id),

  738.           fBinaryType(btype),

  739.           fPluginType(ptype),

  740.           fInitiated(false),

  741.           fInitError(false),

  742.           fSaved(false),

  743.           fTimedOut(false),

  744.           fLastPongCounter(-1),

  745.           fBridgeBinary(),

  746.           fBridgeThread(engine, this),

  747.           fShmAudioPool(),

  748.           fShmRtClientControl(),

  749.           fShmNonRtClientControl(),

  750.           fShmNonRtServerControl(),

  751.           fInfo(),

  752.           fParams(nullptr),

  753.           leakDetector_CarlaPluginBridge()

  754.     {

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

  756. 

  757.         pData->hints |= PLUGIN_IS_BRIDGE;

  758.     }

  759. 

  760.     ~CarlaPluginBridge() override

  761.     {

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

  763. 

  764.         // close UI

  765.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  766.             pData->transientTryCounter = 0;

  767. 

  768.         pData->singleMutex.lock();

  769.         pData->masterMutex.lock();

  770. 

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

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

  773. 

  774.         if (pData->active)

  775.         {

  776.             deactivate();

  777.             pData->active = false;

  778.         }

  779. 

  780.         if (fBridgeThread.isThreadRunning())

  781.         {

  782.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientQuit);

  783.             fShmNonRtClientControl.commitWrite();

  784. 

  785.             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientQuit);

  786.             fShmRtClientControl.commitWrite();

  787. 

  788.             if (! fTimedOut)

  789.                 fShmRtClientControl.waitForClient(3);

  790.         }

  791. 

  792.         fBridgeThread.stopThread(3000);

  793. 

  794.         fShmNonRtServerControl.clear();

  795.         fShmNonRtClientControl.clear();

  796.         fShmRtClientControl.clear();

  797.         fShmAudioPool.clear();

  798. 

  799.         clearBuffers();

  800. 

  801.         fInfo.chunk.clear();

  802.     }

  803. 

  804.     // -------------------------------------------------------------------

  805.     // Information (base)

  806. 

  807.     BinaryType getBinaryType() const noexcept

  808.     {

  809.         return fBinaryType;

  810.     }

  811. 

  812.     PluginType getType() const noexcept override

  813.     {

  814.         return fPluginType;

  815.     }

  816. 

  817.     PluginCategory getCategory() const noexcept override

  818.     {

  819.         return fInfo.category;

  820.     }

  821. 

  822.     int64_t getUniqueId() const noexcept override

  823.     {

  824.         return fInfo.uniqueId;

  825.     }

  826. 

  827.     // -------------------------------------------------------------------

  828.     // Information (count)

  829. 

  830.     uint32_t getMidiInCount() const noexcept override

  831.     {

  832.         return fInfo.mIns;

  833.     }

  834. 

  835.     uint32_t getMidiOutCount() const noexcept override

  836.     {

  837.         return fInfo.mOuts;

  838.     }

  839. 

  840.     // -------------------------------------------------------------------

  841.     // Information (current data)

  842. 

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

  844.     {

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

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

  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() override

  913.     {

  914.         fSaved = false;

  915. 

  916.         {

  917.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  918. 

  919.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPrepareForSave);

  920.             fShmNonRtClientControl.commitWrite();

  921.         }

  922. 

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

  924. 

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

  926.         {

  927.             if (fSaved)

  928.                 break;

  929.             carla_msleep(30);

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

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

  932.         }

  933. 

  934.         if (! fSaved)

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

  936.         else

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

  938.     }

  939. 

  940.     // -------------------------------------------------------------------

  941.     // Set data (internal stuff)

  942. 

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

  944.     {

  945.         {

  946.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  947. 

  948.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetOption);

  949.             fShmNonRtClientControl.writeUInt(option);

  950.             fShmNonRtClientControl.writeBool(yesNo);

  951.             fShmNonRtClientControl.commitWrite();

  952.         }

  953. 

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

  955.     }

  956. 

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

  958.     {

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

  960. 

  961.         {

  962.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  963. 

  964.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetCtrlChannel);

  965.             fShmNonRtClientControl.writeShort(channel);

  966.             fShmNonRtClientControl.commitWrite();

  967.         }

  968. 

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

  970.     }

  971. 

  972.     // -------------------------------------------------------------------

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

  974. 

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

  976.     {

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

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

  979. 

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

  981.         fParams[parameterId].value = fixedValue;

  982. 

  983.         {

  984.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  985. 

  986.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterValue);

  987.             fShmNonRtClientControl.writeUInt(parameterId);

  988.             fShmNonRtClientControl.writeFloat(value);

  989.             fShmNonRtClientControl.commitWrite();

  990.             fShmNonRtClientControl.waitIfDataIsReachingLimit();

  991.         }

  992. 

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

  994.     }

  995. 

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

  997.     {

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

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

  1000.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1001. 

  1002.         {

  1003.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1004. 

  1005.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterMidiChannel);

  1006.             fShmNonRtClientControl.writeUInt(parameterId);

  1007.             fShmNonRtClientControl.writeByte(channel);

  1008.             fShmNonRtClientControl.commitWrite();

  1009.         }

  1010. 

  1011.         CarlaPlugin::setParameterMidiChannel(parameterId, channel, sendOsc, sendCallback);

  1012.     }

  1013. 

  1014.     void setParameterMidiCC(const uint32_t parameterId, const int16_t cc, const bool sendOsc, const bool sendCallback) noexcept override

  1015.     {

  1016.         CARLA_SAFE_ASSERT_RETURN(sendOsc || sendCallback,); // never call this from RT

  1017.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  1018.         CARLA_SAFE_ASSERT_RETURN(cc >= -1 && cc < MAX_MIDI_CONTROL,);

  1019. 

  1020.         {

  1021.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1022. 

  1023.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterMidiCC);

  1024.             fShmNonRtClientControl.writeUInt(parameterId);

  1025.             fShmNonRtClientControl.writeShort(cc);

  1026.             fShmNonRtClientControl.commitWrite();

  1027.         }

  1028. 

  1029.         CarlaPlugin::setParameterMidiCC(parameterId, cc, sendOsc, sendCallback);

  1030.     }

  1031. 

  1032.     void setProgram(const int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  1033.     {

  1034.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback,); // never call this from RT

  1035.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->prog.count),);

  1036. 

  1037.         {

  1038.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1039. 

  1040.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetProgram);

  1041.             fShmNonRtClientControl.writeInt(index);

  1042.             fShmNonRtClientControl.commitWrite();

  1043.         }

  1044. 

  1045.         CarlaPlugin::setProgram(index, sendGui, sendOsc, sendCallback);

  1046.     }

  1047. 

  1048.     void setMidiProgram(const int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  1049.     {

  1050.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback,); // never call this from RT

  1051.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->midiprog.count),);

  1052. 

  1053.         {

  1054.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1055. 

  1056.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetMidiProgram);

  1057.             fShmNonRtClientControl.writeInt(index);

  1058.             fShmNonRtClientControl.commitWrite();

  1059.         }

  1060. 

  1061.         CarlaPlugin::setMidiProgram(index, sendGui, sendOsc, sendCallback);

  1062.     }

  1063. 

  1064.     void setCustomData(const char* const type, const char* const key, const char* const value, const bool sendGui) override

  1065.     {

  1066.         CARLA_SAFE_ASSERT_RETURN(type != nullptr && type[0] != '\0',);

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

  1068.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

  1069. 

  1070.         const uint32_t typeLen(static_cast<uint32_t>(std::strlen(type)));

  1071.         const uint32_t keyLen(static_cast<uint32_t>(std::strlen(key)));

  1072.         const uint32_t valueLen(static_cast<uint32_t>(std::strlen(value)));

  1073. 

  1074.         {

  1075.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1076. 

  1077.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetCustomData);

  1078. 

  1079.             fShmNonRtClientControl.writeUInt(typeLen);

  1080.             fShmNonRtClientControl.writeCustomData(type, typeLen);

  1081. 

  1082.             fShmNonRtClientControl.writeUInt(keyLen);

  1083.             fShmNonRtClientControl.writeCustomData(key, keyLen);

  1084. 

  1085.             fShmNonRtClientControl.writeUInt(valueLen);

  1086.             fShmNonRtClientControl.writeCustomData(value, valueLen);

  1087. 

  1088.             fShmNonRtClientControl.commitWrite();

  1089.         }

  1090. 

  1091.         CarlaPlugin::setCustomData(type, key, value, sendGui);

  1092.     }

  1093. 

  1094.     void setChunkData(const void* const data, const std::size_t dataSize) override

  1095.     {

  1096.         CARLA_SAFE_ASSERT_RETURN(pData->options & PLUGIN_OPTION_USE_CHUNKS,);

  1097.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  1098.         CARLA_SAFE_ASSERT_RETURN(dataSize > 0,);

  1099. 

  1100.         CarlaString dataBase64(CarlaString::asBase64(data, dataSize));

  1101.         CARLA_SAFE_ASSERT_RETURN(dataBase64.length() > 0,);

  1102. 

  1103.         String filePath(File::getSpecialLocation(File::tempDirectory).getFullPathName());

  1104. 

  1105.         filePath += CARLA_OS_SEP_STR ".CarlaChunk_";

  1106.         filePath += fShmAudioPool.filename.buffer() + 18;

  1107. 

  1108.         if (File(filePath).replaceWithText(dataBase64.buffer()))

  1109.         {

  1110.             const uint32_t ulength(static_cast<uint32_t>(filePath.length()));

  1111. 

  1112.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1113. 

  1114.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetChunkDataFile);

  1115.             fShmNonRtClientControl.writeUInt(ulength);

  1116.             fShmNonRtClientControl.writeCustomData(filePath.toRawUTF8(), ulength);

  1117.             fShmNonRtClientControl.commitWrite();

  1118.         }

  1119.     }

  1120. 

  1121.     // -------------------------------------------------------------------

  1122.     // Set ui stuff

  1123. 

  1124.     void showCustomUI(const bool yesNo) override

  1125.     {

  1126.         {

  1127.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1128. 

  1129.             fShmNonRtClientControl.writeOpcode(yesNo ? kPluginBridgeNonRtClientShowUI : kPluginBridgeNonRtClientHideUI);

  1130.             fShmNonRtClientControl.commitWrite();

  1131.         }

  1132. 

  1133.         if (yesNo)

  1134.         {

  1135.             pData->tryTransient();

  1136.         }

  1137.         else

  1138.         {

  1139.             pData->transientTryCounter = 0;

  1140.         }

  1141.     }

  1142. 

  1143.     void idle() override

  1144.     {

  1145.         if (fBridgeThread.isThreadRunning())

  1146.         {

  1147.             if (fInitiated && fTimedOut && pData->active)

  1148.                 setActive(false, true, true);

  1149. 

  1150.             {

  1151.                 const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1152. 

  1153.                 fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPing);

  1154.                 fShmNonRtClientControl.commitWrite();

  1155.             }

  1156. 

  1157.             try {

  1158.                 handleNonRtData();

  1159.             } CARLA_SAFE_EXCEPTION("handleNonRtData");

  1160.         }

  1161.         else

  1162.             carla_stderr2("TESTING: Bridge has closed!");

  1163. 

  1164.         CarlaPlugin::idle();

  1165.     }

  1166. 

  1167.     // -------------------------------------------------------------------

  1168.     // Plugin state

  1169. 

  1170.     void reload() override

  1171.     {

  1172.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr,);

  1173.         carla_debug("CarlaPluginBridge::reload() - start");

  1174. 

  1175.         const EngineProcessMode processMode(pData->engine->getProccessMode());

  1176. 

  1177.         // Safely disable plugin for reload

  1178.         const ScopedDisabler sd(this);

  1179. 

  1180.         bool needsCtrlIn, needsCtrlOut;

  1181.         needsCtrlIn = needsCtrlOut = false;

  1182. 

  1183.         if (fInfo.aIns > 0)

  1184.         {

  1185.             pData->audioIn.createNew(fInfo.aIns);

  1186.         }

  1187. 

  1188.         if (fInfo.aOuts > 0)

  1189.         {

  1190.             pData->audioOut.createNew(fInfo.aOuts);

  1191.             needsCtrlIn = true;

  1192.         }

  1193. 

  1194.         if (fInfo.cvIns > 0)

  1195.         {

  1196.             pData->cvIn.createNew(fInfo.cvIns);

  1197.         }

  1198. 

  1199.         if (fInfo.cvOuts > 0)

  1200.         {

  1201.             pData->cvOut.createNew(fInfo.cvOuts);

  1202.         }

  1203. 

  1204.         if (fInfo.mIns > 0)

  1205.             needsCtrlIn = true;

  1206. 

  1207.         if (fInfo.mOuts > 0)

  1208.             needsCtrlOut = true;

  1209. 

  1210.         const uint portNameSize(pData->engine->getMaxPortNameSize());

  1211.         CarlaString portName;

  1212. 

  1213.         // Audio Ins

  1214.         for (uint32_t j=0; j < fInfo.aIns; ++j)

  1215.         {

  1216.             portName.clear();

  1217. 

  1218.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1219.             {

  1220.                 portName  = pData->name;

  1221.                 portName += ":";

  1222.             }

  1223. 

  1224.             if (fInfo.aIns > 1)

  1225.             {

  1226.                 portName += "input_";

  1227.                 portName += CarlaString(j+1);

  1228.             }

  1229.             else

  1230.                 portName += "input";

  1231. 

  1232.             portName.truncate(portNameSize);

  1233. 

  1234.             pData->audioIn.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true);

  1235.             pData->audioIn.ports[j].rindex = j;

  1236.         }

  1237. 

  1238.         // Audio Outs

  1239.         for (uint32_t j=0; j < fInfo.aOuts; ++j)

  1240.         {

  1241.             portName.clear();

  1242. 

  1243.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1244.             {

  1245.                 portName  = pData->name;

  1246.                 portName += ":";

  1247.             }

  1248. 

  1249.             if (fInfo.aOuts > 1)

  1250.             {

  1251.                 portName += "output_";

  1252.                 portName += CarlaString(j+1);

  1253.             }

  1254.             else

  1255.                 portName += "output";

  1256. 

  1257.             portName.truncate(portNameSize);

  1258. 

  1259.             pData->audioOut.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false);

  1260.             pData->audioOut.ports[j].rindex = j;

  1261.         }

  1262. 

  1263.         // TODO - CV

  1264. 

  1265.         if (needsCtrlIn)

  1266.         {

  1267.             portName.clear();

  1268. 

  1269.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1270.             {

  1271.                 portName  = pData->name;

  1272.                 portName += ":";

  1273.             }

  1274. 

  1275.             portName += "event-in";

  1276.             portName.truncate(portNameSize);

  1277. 

  1278.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  1279.         }

  1280. 

  1281.         if (needsCtrlOut)

  1282.         {

  1283.             portName.clear();

  1284. 

  1285.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1286.             {

  1287.                 portName  = pData->name;

  1288.                 portName += ":";

  1289.             }

  1290. 

  1291.             portName += "event-out";

  1292.             portName.truncate(portNameSize);

  1293. 

  1294.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  1295.         }

  1296. 

  1297.         // extra plugin hints

  1298.         pData->extraHints = 0x0;

  1299. 

  1300.         if (fInfo.mIns > 0)

  1301.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  1302. 

  1303.         if (fInfo.mOuts > 0)

  1304.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_OUT;

  1305. 

  1306.         if (fInfo.aIns <= 2 && fInfo.aOuts <= 2 && (fInfo.aIns == fInfo.aOuts || fInfo.aIns == 0 || fInfo.aOuts == 0))

  1307.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1308. 

  1309.         bufferSizeChanged(pData->engine->getBufferSize());

  1310.         reloadPrograms(true);

  1311. 

  1312.         carla_debug("CarlaPluginBridge::reload() - end");

  1313.     }

  1314. 

  1315.     // -------------------------------------------------------------------

  1316.     // Plugin processing

  1317. 

  1318.     void activate() noexcept override

  1319.     {

  1320.         {

  1321.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1322. 

  1323.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientActivate);

  1324.             fShmNonRtClientControl.commitWrite();

  1325.         }

  1326. 

  1327.         bool timedOut = true;

  1328. 

  1329.         try {

  1330.             timedOut = waitForClient(1);

  1331.         } CARLA_SAFE_EXCEPTION("activate - waitForClient");

  1332. 

  1333.         if (! timedOut)

  1334.             fTimedOut = false;

  1335.     }

  1336. 

  1337.     void deactivate() noexcept override

  1338.     {

  1339.         {

  1340.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1341. 

  1342.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientDeactivate);

  1343.             fShmNonRtClientControl.commitWrite();

  1344.         }

  1345. 

  1346.         bool timedOut = true;

  1347. 

  1348.         try {

  1349.             timedOut = waitForClient(1);

  1350.         } CARLA_SAFE_EXCEPTION("deactivate - waitForClient");

  1351. 

  1352.         if (! timedOut)

  1353.             fTimedOut = false;

  1354.     }

  1355. 

  1356.     void process(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames) override

  1357.     {

  1358.         // --------------------------------------------------------------------------------------------------------

  1359.         // Check if active

  1360. 

  1361.         if (fTimedOut || ! pData->active)

  1362.         {

  1363.             // disable any output sound

  1364.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1365.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1366.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1367.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1368.             return;

  1369.         }

  1370. 

  1371.         // --------------------------------------------------------------------------------------------------------

  1372.         // Check if needs reset

  1373. 

  1374.         if (pData->needsReset)

  1375.         {

  1376.             // TODO

  1377. 

  1378.             pData->needsReset = false;

  1379.         }

  1380. 

  1381.         // --------------------------------------------------------------------------------------------------------

  1382.         // Event Input

  1383. 

  1384.         if (pData->event.portIn != nullptr)

  1385.         {

  1386.             // ----------------------------------------------------------------------------------------------------

  1387.             // MIDI Input (External)

  1388. 

  1389.             if (pData->extNotes.mutex.tryLock())

  1390.             {

  1391.                 for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin(); it.valid(); it.next())

  1392.                 {

  1393.                     const ExternalMidiNote& note(it.getValue());

  1394. 

  1395.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1396. 

  1397.                     uint8_t data1, data2, data3;

  1398.                     data1 = uint8_t((note.velo > 0 ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF) | (note.channel & MIDI_CHANNEL_BIT));

  1399.                     data2 = note.note;

  1400.                     data3 = note.velo;

  1401. 

  1402.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1403.                     fShmRtClientControl.writeUInt(0); // time

  1404.                     fShmRtClientControl.writeByte(0); // port

  1405.                     fShmRtClientControl.writeByte(3); // size

  1406.                     fShmRtClientControl.writeByte(data1);

  1407.                     fShmRtClientControl.writeByte(data2);

  1408.                     fShmRtClientControl.writeByte(data3);

  1409.                     fShmRtClientControl.commitWrite();

  1410.                 }

  1411. 

  1412.                 pData->extNotes.data.clear();

  1413.                 pData->extNotes.mutex.unlock();

  1414. 

  1415.             } // End of MIDI Input (External)

  1416. 

  1417.             // ----------------------------------------------------------------------------------------------------

  1418.             // Event Input (System)

  1419. 

  1420.             bool allNotesOffSent = false;

  1421. 

  1422.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1423.             {

  1424.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1425. 

  1426.                 // Control change

  1427.                 switch (event.type)

  1428.                 {

  1429.                 case kEngineEventTypeNull:

  1430.                     break;

  1431. 

  1432.                 case kEngineEventTypeControl: {

  1433.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1434. 

  1435.                     switch (ctrlEvent.type)

  1436.                     {

  1437.                     case kEngineControlEventTypeNull:

  1438.                         break;

  1439. 

  1440.                     case kEngineControlEventTypeParameter:

  1441.                         // Control backend stuff

  1442.                         if (event.channel == pData->ctrlChannel)

  1443.                         {

  1444.                             float value;

  1445. 

  1446.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1447.                             {

  1448.                                 value = ctrlEvent.value;

  1449.                                 setDryWet(value, false, false);

  1450.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1451.                                 break;

  1452.                             }

  1453. 

  1454.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1455.                             {

  1456.                                 value = ctrlEvent.value*127.0f/100.0f;

  1457.                                 setVolume(value, false, false);

  1458.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1459.                                 break;

  1460.                             }

  1461. 

  1462.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1463.                             {

  1464.                                 float left, right;

  1465.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1466. 

  1467.                                 if (value < 0.0f)

  1468.                                 {

  1469.                                     left  = -1.0f;

  1470.                                     right = (value*2.0f)+1.0f;

  1471.                                 }

  1472.                                 else if (value > 0.0f)

  1473.                                 {

  1474.                                     left  = (value*2.0f)-1.0f;

  1475.                                     right = 1.0f;

  1476.                                 }

  1477.                                 else

  1478.                                 {

  1479.                                     left  = -1.0f;

  1480.                                     right = 1.0f;

  1481.                                 }

  1482. 

  1483.                                 setBalanceLeft(left, false, false);

  1484.                                 setBalanceRight(right, false, false);

  1485.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1486.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1487.                                 break;

  1488.                             }

  1489.                         }

  1490. 

  1491.                         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventParameter);

  1492.                         fShmRtClientControl.writeUInt(event.time);

  1493.                         fShmRtClientControl.writeByte(event.channel);

  1494.                         fShmRtClientControl.writeUShort(event.ctrl.param);

  1495.                         fShmRtClientControl.writeFloat(event.ctrl.value);

  1496.                         fShmRtClientControl.commitWrite();

  1497.                         break;

  1498. 

  1499.                     case kEngineControlEventTypeMidiBank:

  1500.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1501.                         {

  1502.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiBank);

  1503.                             fShmRtClientControl.writeUInt(event.time);

  1504.                             fShmRtClientControl.writeByte(event.channel);

  1505.                             fShmRtClientControl.writeUShort(event.ctrl.param);

  1506.                             fShmRtClientControl.commitWrite();

  1507.                         }

  1508.                         break;

  1509. 

  1510.                     case kEngineControlEventTypeMidiProgram:

  1511.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1512.                         {

  1513.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiProgram);

  1514.                             fShmRtClientControl.writeUInt(event.time);

  1515.                             fShmRtClientControl.writeByte(event.channel);

  1516.                             fShmRtClientControl.writeUShort(event.ctrl.param);

  1517.                             fShmRtClientControl.commitWrite();

  1518.                         }

  1519.                         break;

  1520. 

  1521.                     case kEngineControlEventTypeAllSoundOff:

  1522.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1523.                         {

  1524.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllSoundOff);

  1525.                             fShmRtClientControl.writeUInt(event.time);

  1526.                             fShmRtClientControl.writeByte(event.channel);

  1527.                             fShmRtClientControl.commitWrite();

  1528.                         }

  1529.                         break;

  1530. 

  1531.                     case kEngineControlEventTypeAllNotesOff:

  1532.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1533.                         {

  1534.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1535.                             {

  1536.                                 allNotesOffSent = true;

  1537.                                 sendMidiAllNotesOffToCallback();

  1538.                             }

  1539. 

  1540.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllNotesOff);

  1541.                             fShmRtClientControl.writeUInt(event.time);

  1542.                             fShmRtClientControl.writeByte(event.channel);

  1543.                             fShmRtClientControl.commitWrite();

  1544.                         }

  1545.                         break;

  1546.                     } // switch (ctrlEvent.type)

  1547.                     break;

  1548.                 } // case kEngineEventTypeControl

  1549. 

  1550.                 case kEngineEventTypeMidi: {

  1551.                     const EngineMidiEvent& midiEvent(event.midi);

  1552. 

  1553.                     if (midiEvent.size == 0 || midiEvent.size >= MAX_MIDI_VALUE)

  1554.                         continue;

  1555. 

  1556.                     const uint8_t* const midiData(midiEvent.size > EngineMidiEvent::kDataSize ? midiEvent.dataExt : midiEvent.data);

  1557. 

  1558.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiData));

  1559. 

  1560.                     if (status == MIDI_STATUS_CHANNEL_PRESSURE && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1561.                         continue;

  1562.                     if (status == MIDI_STATUS_CONTROL_CHANGE && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1563.                         continue;

  1564.                     if (status == MIDI_STATUS_POLYPHONIC_AFTERTOUCH && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1565.                         continue;

  1566.                     if (status == MIDI_STATUS_PITCH_WHEEL_CONTROL && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1567.                         continue;

  1568. 

  1569.                     // Fix bad note-off

  1570.                     if (status == MIDI_STATUS_NOTE_ON && midiData[2] == 0)

  1571.                         status = MIDI_STATUS_NOTE_OFF;

  1572. 

  1573.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1574.                     fShmRtClientControl.writeUInt(event.time);

  1575.                     fShmRtClientControl.writeByte(midiEvent.port);

  1576.                     fShmRtClientControl.writeByte(midiEvent.size);

  1577. 

  1578.                     fShmRtClientControl.writeByte(uint8_t(midiData[0] | (event.channel & MIDI_CHANNEL_BIT)));

  1579. 

  1580.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1581.                         fShmRtClientControl.writeByte(midiData[j]);

  1582. 

  1583.                     fShmRtClientControl.commitWrite();

  1584. 

  1585.                     if (status == MIDI_STATUS_NOTE_ON)

  1586.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, midiData[1], midiData[2]);

  1587.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1588.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, midiData[1], 0.0f);

  1589.                 } break;

  1590.                 }

  1591.             }

  1592. 

  1593.             pData->postRtEvents.trySplice();

  1594. 

  1595.         } // End of Event Input

  1596. 

  1597.         processSingle(audioIn, audioOut, cvIn, cvOut, frames);

  1598.     }

  1599. 

  1600.     bool processSingle(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames)

  1601.     {

  1602.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1603. 

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

  1605.         {

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

  1607.         }

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

  1609.         {

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

  1611.         }

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

  1613.         {

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

  1615.         }

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

  1617.         {

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

  1619.         }

  1620. 

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

  1622.         // Try lock, silence otherwise

  1623. 

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

  1625.         {

  1626.             pData->singleMutex.lock();

  1627.         }

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

  1629.         {

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

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

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

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

  1634.             return false;

  1635.         }

  1636. 

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

  1638.         // Reset audio buffers

  1639. 

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

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

  1642. 

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

  1644.         // TimeInfo

  1645. 

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

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

  1648. 

  1649.         bridgeTimeInfo.playing = timeInfo.playing;

  1650.         bridgeTimeInfo.frame   = timeInfo.frame;

  1651.         bridgeTimeInfo.usecs   = timeInfo.usecs;

  1652.         bridgeTimeInfo.valid   = timeInfo.valid;

  1653. 

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

  1655.         {

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

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

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

  1659. 

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

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

  1662. 

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

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

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

  1666.         }

  1667. 

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

  1669.         // Run plugin

  1670. 

  1671.         {

  1672.             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientProcess);

  1673.             fShmRtClientControl.commitWrite();

  1674.         }

  1675. 

  1676.         if (! waitForClient(2))

  1677.         {

  1678.             pData->singleMutex.unlock();

  1679.             return true;

  1680.         }

  1681. 

  1682.         for (uint32_t i=0; i < fInfo.aOuts; ++i)

  1683.             FloatVectorOperations::copy(audioOut[i], fShmAudioPool.data + ((i + fInfo.aIns) * frames), static_cast<int>(frames));

  1684. 

  1685.         // --------------------------------------------------------------------------------------------------------

  1686.         // Post-processing (dry/wet, volume and balance)

  1687. 

  1688.         {

  1689.             const bool doVolume  = (pData->hints & PLUGIN_CAN_VOLUME) != 0 && ! carla_compareFloats(pData->postProc.volume, 1.0f);

  1690.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && ! carla_compareFloats(pData->postProc.dryWet, 1.0f);

  1691.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_compareFloats(pData->postProc.balanceLeft, -1.0f) && carla_compareFloats(pData->postProc.balanceRight, 1.0f));

  1692. 

  1693.             bool isPair;

  1694.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1695. 

  1696.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1697.             {

  1698.                 // Dry/Wet

  1699.                 if (doDryWet)

  1700.                 {

  1701.                     for (uint32_t k=0; k < frames; ++k)

  1702.                     {

  1703.                         bufValue        = audioIn[(pData->audioIn.count == 1) ? 0 : i][k];

  1704.                         audioOut[i][k] = (audioOut[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1705.                     }

  1706.                 }

  1707. 

  1708.                 // Balance

  1709.                 if (doBalance)

  1710.                 {

  1711.                     isPair = (i % 2 == 0);

  1712. 

  1713.                     if (isPair)

  1714.                     {

  1715.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1716.                         FloatVectorOperations::copy(oldBufLeft, audioOut[i], static_cast<int>(frames));

  1717.                     }

  1718. 

  1719.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1720.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1721. 

  1722.                     for (uint32_t k=0; k < frames; ++k)

  1723.                     {

  1724.                         if (isPair)

  1725.                         {

  1726.                             // left

  1727.                             audioOut[i][k]  = oldBufLeft[k]     * (1.0f - balRangeL);

  1728.                             audioOut[i][k] += audioOut[i+1][k] * (1.0f - balRangeR);

  1729.                         }

  1730.                         else

  1731.                         {

  1732.                             // right

  1733.                             audioOut[i][k]  = audioOut[i][k] * balRangeR;

  1734.                             audioOut[i][k] += oldBufLeft[k]   * balRangeL;

  1735.                         }

  1736.                     }

  1737.                 }

  1738. 

  1739.                 // Volume (and buffer copy)

  1740.                 if (doVolume)

  1741.                 {

  1742.                     for (uint32_t k=0; k < frames; ++k)

  1743.                         audioOut[i][k] *= pData->postProc.volume;

  1744.                 }

  1745.             }

  1746. 

  1747.         } // End of Post-processing

  1748. 

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

  1750. 

  1751.         pData->singleMutex.unlock();

  1752.         return true;

  1753.     }

  1754. 

  1755.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1756.     {

  1757.         resizeAudioPool(newBufferSize);

  1758. 

  1759.         {

  1760.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1761.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  1762.             fShmNonRtClientControl.writeUInt(newBufferSize);

  1763.             fShmNonRtClientControl.commitWrite();

  1764.         }

  1765. 

  1766.         fShmRtClientControl.waitForClient(1);

  1767.     }

  1768. 

  1769.     void sampleRateChanged(const double newSampleRate) override

  1770.     {

  1771.         {

  1772.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1773.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  1774.             fShmNonRtClientControl.writeDouble(newSampleRate);

  1775.             fShmNonRtClientControl.commitWrite();

  1776.         }

  1777. 

  1778.         fShmRtClientControl.waitForClient(1);

  1779.     }

  1780. 

  1781.     void offlineModeChanged(const bool isOffline) override

  1782.     {

  1783.         {

  1784.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1785.             fShmNonRtClientControl.writeOpcode(isOffline ? kPluginBridgeNonRtClientSetOffline : kPluginBridgeNonRtClientSetOnline);

  1786.             fShmNonRtClientControl.commitWrite();

  1787.         }

  1788. 

  1789.         fShmRtClientControl.waitForClient(1);

  1790.     }

  1791. 

  1792.     // -------------------------------------------------------------------

  1793.     // Plugin buffers

  1794. 

  1795.     void clearBuffers() noexcept override

  1796.     {

  1797.         if (fParams != nullptr)

  1798.         {

  1799.             delete[] fParams;

  1800.             fParams = nullptr;

  1801.         }

  1802. 

  1803.         CarlaPlugin::clearBuffers();

  1804.     }

  1805. 

  1806.     // -------------------------------------------------------------------

  1807.     // Post-poned UI Stuff

  1808. 

  1809.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  1810.     {

  1811.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  1812. 

  1813.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1814. 

  1815.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiParameterChange);

  1816.         fShmNonRtClientControl.writeUInt(index);

  1817.         fShmNonRtClientControl.writeFloat(value);

  1818.         fShmNonRtClientControl.commitWrite();

  1819.     }

  1820. 

  1821.     void uiProgramChange(const uint32_t index) noexcept override

  1822.     {

  1823.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1824. 

  1825.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1826. 

  1827.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiProgramChange);

  1828.         fShmNonRtClientControl.writeUInt(index);

  1829.         fShmNonRtClientControl.commitWrite();

  1830.     }

  1831. 

  1832.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1833.     {

  1834.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1835. 

  1836.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1837. 

  1838.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiMidiProgramChange);

  1839.         fShmNonRtClientControl.writeUInt(index);

  1840.         fShmNonRtClientControl.commitWrite();

  1841.     }

  1842. 

  1843.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1844.     {

  1845.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1846.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1847.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  1848. 

  1849.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1850. 

  1851.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOn);

  1852.         fShmNonRtClientControl.writeByte(channel);

  1853.         fShmNonRtClientControl.writeByte(note);

  1854.         fShmNonRtClientControl.writeByte(velo);

  1855.         fShmNonRtClientControl.commitWrite();

  1856.     }

  1857. 

  1858.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  1859.     {

  1860.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1861.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1862. 

  1863.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1864. 

  1865.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOff);

  1866.         fShmNonRtClientControl.writeByte(channel);

  1867.         fShmNonRtClientControl.writeByte(note);

  1868.         fShmNonRtClientControl.commitWrite();

  1869.     }

  1870. 

  1871.     // -------------------------------------------------------------------

  1872. 

  1873.     void handleNonRtData()

  1874.     {

  1875.         for (; fShmNonRtServerControl.isDataAvailableForReading();)

  1876.         {

  1877.             const PluginBridgeNonRtServerOpcode opcode(fShmNonRtServerControl.readOpcode());

  1878. #ifdef DEBUG

  1879.             if (opcode != kPluginBridgeNonRtServerPong) {

  1880.                 carla_debug("CarlaPluginBridge::handleNonRtData() - got opcode: %s", PluginBridgeNonRtServerOpcode2str(opcode));

  1881.             }

  1882. #endif

  1883.             if (opcode != kPluginBridgeNonRtServerNull && fLastPongCounter > 0)

  1884.                 fLastPongCounter = 0;

  1885. 

  1886.             switch (opcode)

  1887.             {

  1888.             case kPluginBridgeNonRtServerNull:

  1889.             case kPluginBridgeNonRtServerPong:

  1890.                 break;

  1891. 

  1892.             case kPluginBridgeNonRtServerPluginInfo1: {

  1893.                 // uint/category, uint/hints, uint/optionsAvailable, uint/optionsEnabled, long/uniqueId

  1894.                 const uint32_t category = fShmNonRtServerControl.readUInt();

  1895.                 const uint32_t hints    = fShmNonRtServerControl.readUInt();

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

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

  1898.                 const  int64_t uniqueId = fShmNonRtServerControl.readLong();

  1899. 

  1900.                 pData->hints   = hints | PLUGIN_IS_BRIDGE;

  1901.                 pData->options = optionEn;

  1902. 

  1903.                 fInfo.category = static_cast<PluginCategory>(category);

  1904.                 fInfo.uniqueId = uniqueId;

  1905.                 fInfo.optionsAvailable = optionAv;

  1906.             }   break;

  1907. 

  1908.             case kPluginBridgeNonRtServerPluginInfo2: {

  1909.                 // uint/size, str[] (realName), uint/size, str[] (label), uint/size, str[] (maker), uint/size, str[] (copyright)

  1910. 

  1911.                 // realName

  1912.                 const uint32_t realNameSize(fShmNonRtServerControl.readUInt());

  1913.                 char realName[realNameSize+1];

  1914.                 carla_zeroChar(realName, realNameSize+1);

  1915.                 fShmNonRtServerControl.readCustomData(realName, realNameSize);

  1916. 

  1917.                 // label

  1918.                 const uint32_t labelSize(fShmNonRtServerControl.readUInt());

  1919.                 char label[labelSize+1];

  1920.                 carla_zeroChar(label, labelSize+1);

  1921.                 fShmNonRtServerControl.readCustomData(label, labelSize);

  1922. 

  1923.                 // maker

  1924.                 const uint32_t makerSize(fShmNonRtServerControl.readUInt());

  1925.                 char maker[makerSize+1];

  1926.                 carla_zeroChar(maker, makerSize+1);

  1927.                 fShmNonRtServerControl.readCustomData(maker, makerSize);

  1928. 

  1929.                 // copyright

  1930.                 const uint32_t copyrightSize(fShmNonRtServerControl.readUInt());

  1931.                 char copyright[copyrightSize+1];

  1932.                 carla_zeroChar(copyright, copyrightSize+1);

  1933.                 fShmNonRtServerControl.readCustomData(copyright, copyrightSize);

  1934. 

  1935.                 fInfo.name  = realName;

  1936.                 fInfo.label = label;

  1937.                 fInfo.maker = maker;

  1938.                 fInfo.copyright = copyright;

  1939. 

  1940.                 if (pData->name == nullptr)

  1941.                     pData->name = pData->engine->getUniquePluginName(realName);

  1942.             }   break;

  1943. 

  1944.             case kPluginBridgeNonRtServerAudioCount: {

  1945.                 // uint/ins, uint/outs

  1946.                 fInfo.aIns  = fShmNonRtServerControl.readUInt();

  1947.                 fInfo.aOuts = fShmNonRtServerControl.readUInt();

  1948.             }   break;

  1949. 

  1950.             case kPluginBridgeNonRtServerMidiCount: {

  1951.                 // uint/ins, uint/outs

  1952.                 fInfo.mIns  = fShmNonRtServerControl.readUInt();

  1953.                 fInfo.mOuts = fShmNonRtServerControl.readUInt();

  1954.             }   break;

  1955. 

  1956.             case kPluginBridgeNonRtServerParameterCount: {

  1957.                 // uint/count

  1958.                 const uint32_t count = fShmNonRtServerControl.readUInt();

  1959. 

  1960.                 // delete old data

  1961.                 pData->param.clear();

  1962. 

  1963.                 if (fParams != nullptr)

  1964.                 {

  1965.                     delete[] fParams;

  1966.                     fParams = nullptr;

  1967.                 }

  1968. 

  1969.                 if (count > 0)

  1970.                 {

  1971.                     pData->param.createNew(count, false);

  1972.                     fParams = new BridgeParamInfo[count];

  1973. 

  1974.                     // we might not receive all parameter data, so ensure range max is not 0

  1975.                     for (uint32_t i=0; i<count; ++i)

  1976.                     {

  1977.                         pData->param.ranges[i].def = 0.0f;

  1978.                         pData->param.ranges[i].min = 0.0f;

  1979.                         pData->param.ranges[i].max = 1.0f;

  1980.                         pData->param.ranges[i].step = 0.001f;

  1981.                         pData->param.ranges[i].stepSmall = 0.0001f;

  1982.                         pData->param.ranges[i].stepLarge = 0.1f;

  1983.                     }

  1984.                 }

  1985.             }   break;

  1986. 

  1987.             case kPluginBridgeNonRtServerProgramCount: {

  1988.                 // uint/count

  1989.                 pData->prog.clear();

  1990. 

  1991.                 if (const uint32_t count = fShmNonRtServerControl.readUInt())

  1992.                     pData->prog.createNew(static_cast<uint32_t>(count));

  1993. 

  1994.             }   break;

  1995. 

  1996.             case kPluginBridgeNonRtServerMidiProgramCount: {

  1997.                 // uint/count

  1998.                 pData->midiprog.clear();

  1999. 

  2000.                 if (const uint32_t count = fShmNonRtServerControl.readUInt())

  2001.                     pData->midiprog.createNew(static_cast<uint32_t>(count));

  2002. 

  2003.             }   break;

  2004. 

  2005.             case kPluginBridgeNonRtServerParameterData1: {

  2006.                 // uint/index, int/rindex, uint/type, uint/hints, int/cc

  2007.                 const uint32_t index  = fShmNonRtServerControl.readUInt();

  2008.                 const  int32_t rindex = fShmNonRtServerControl.readInt();

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

  2010.                 const uint32_t hints  = fShmNonRtServerControl.readUInt();

  2011.                 const  int16_t midiCC = fShmNonRtServerControl.readShort();

  2012. 

  2013.                 CARLA_SAFE_ASSERT_BREAK(midiCC >= -1 && midiCC < MAX_MIDI_CONTROL);

  2014.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2015. 

  2016.                 if (index < pData->param.count)

  2017.                 {

  2018.                     pData->param.data[index].type   = static_cast<ParameterType>(type);

  2019.                     pData->param.data[index].index  = static_cast<int32_t>(index);

  2020.                     pData->param.data[index].rindex = rindex;

  2021.                     pData->param.data[index].hints  = hints;

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

  2023.                 }

  2024.             }   break;

  2025. 

  2026.             case kPluginBridgeNonRtServerParameterData2: {

  2027.                 // uint/index, uint/size, str[] (name), uint/size, str[] (unit)

  2028.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2029. 

  2030.                 // name

  2031.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2032.                 char name[nameSize+1];

  2033.                 carla_zeroChar(name, nameSize+1);

  2034.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2035. 

  2036.                 // symbol

  2037.                 const uint32_t symbolSize(fShmNonRtServerControl.readUInt());

  2038.                 char symbol[symbolSize+1];

  2039.                 carla_zeroChar(symbol, symbolSize+1);

  2040.                 fShmNonRtServerControl.readCustomData(symbol, symbolSize);

  2041. 

  2042.                 // unit

  2043.                 const uint32_t unitSize(fShmNonRtServerControl.readUInt());

  2044.                 char unit[unitSize+1];

  2045.                 carla_zeroChar(unit, unitSize+1);

  2046.                 fShmNonRtServerControl.readCustomData(unit, unitSize);

  2047. 

  2048.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2049. 

  2050.                 if (index < pData->param.count)

  2051.                 {

  2052.                     fParams[index].name   = name;

  2053.                     fParams[index].symbol = symbol;

  2054.                     fParams[index].unit   = unit;

  2055.                 }

  2056.             }   break;

  2057. 

  2058.             case kPluginBridgeNonRtServerParameterRanges: {

  2059.                 // uint/index, float/def, float/min, float/max, float/step, float/stepSmall, float/stepLarge

  2060.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2061.                 const float def      = fShmNonRtServerControl.readFloat();

  2062.                 const float min      = fShmNonRtServerControl.readFloat();

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

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

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

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

  2067. 

  2068.                 CARLA_SAFE_ASSERT_BREAK(min < max);

  2069.                 CARLA_SAFE_ASSERT_BREAK(def >= min);

  2070.                 CARLA_SAFE_ASSERT_BREAK(def <= max);

  2071.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2072. 

  2073.                 if (index < pData->param.count)

  2074.                 {

  2075.                     pData->param.ranges[index].def = def;

  2076.                     pData->param.ranges[index].min = min;

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

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

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

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

  2081.                 }

  2082.             }   break;

  2083. 

  2084.             case kPluginBridgeNonRtServerParameterValue: {

  2085.                 // uint/index, float/value

  2086.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2087.                 const float    value = fShmNonRtServerControl.readFloat();

  2088. 

  2089.                 if (index < pData->param.count)

  2090.                 {

  2091.                     const float fixedValue(pData->param.getFixedValue(index, value));

  2092.                     fParams[index].value = fixedValue;

  2093. 

  2094.                     CarlaPlugin::setParameterValue(index, fixedValue, false, true, true);

  2095.                 }

  2096.             }   break;

  2097. 

  2098.             case kPluginBridgeNonRtServerParameterValue2: {

  2099.                 // uint/index, float/value

  2100.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2101.                 const float    value = fShmNonRtServerControl.readFloat();

  2102. 

  2103.                 if (index < pData->param.count)

  2104.                 {

  2105.                     const float fixedValue(pData->param.getFixedValue(index, value));

  2106.                     fParams[index].value = fixedValue;

  2107.                 }

  2108.             }   break;

  2109. 

  2110.             case kPluginBridgeNonRtServerDefaultValue: {

  2111.                 // uint/index, float/value

  2112.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2113.                 const float    value = fShmNonRtServerControl.readFloat();

  2114. 

  2115.                 if (index < pData->param.count)

  2116.                     pData->param.ranges[index].def = value;

  2117.             }   break;

  2118. 

  2119.             case kPluginBridgeNonRtServerCurrentProgram: {

  2120.                 // int/index

  2121.                 const int32_t index = fShmNonRtServerControl.readInt();

  2122. 

  2123.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

  2124.                 CARLA_SAFE_ASSERT_INT2(index < static_cast<int32_t>(pData->prog.count), index, pData->prog.count);

  2125. 

  2126.                 CarlaPlugin::setProgram(index, false, true, true);

  2127.             }   break;

  2128. 

  2129.             case kPluginBridgeNonRtServerCurrentMidiProgram: {

  2130.                 // int/index

  2131.                 const int32_t index = fShmNonRtServerControl.readInt();

  2132. 

  2133.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

  2134.                 CARLA_SAFE_ASSERT_INT2(index < static_cast<int32_t>(pData->midiprog.count), index, pData->midiprog.count);

  2135. 

  2136.                 CarlaPlugin::setMidiProgram(index, false, true, true);

  2137.             }   break;

  2138. 

  2139.             case kPluginBridgeNonRtServerProgramName: {

  2140.                 // uint/index, uint/size, str[] (name)

  2141.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2142. 

  2143.                 // name

  2144.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2145.                 char name[nameSize+1];

  2146.                 carla_zeroChar(name, nameSize+1);

  2147.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2148. 

  2149.                 CARLA_SAFE_ASSERT_INT2(index < pData->prog.count, index, pData->prog.count);

  2150. 

  2151.                 if (index < pData->prog.count)

  2152.                 {

  2153.                     if (pData->prog.names[index] != nullptr)

  2154.                         delete[] pData->prog.names[index];

  2155.                     pData->prog.names[index] = carla_strdup(name);

  2156.                 }

  2157.             }   break;

  2158. 

  2159.             case kPluginBridgeNonRtServerMidiProgramData: {

  2160.                 // uint/index, uint/bank, uint/program, uint/size, str[] (name)

  2161.                 const uint32_t index   = fShmNonRtServerControl.readUInt();

  2162.                 const uint32_t bank    = fShmNonRtServerControl.readUInt();

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

  2164. 

  2165.                 // name

  2166.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2167.                 char name[nameSize+1];

  2168.                 carla_zeroChar(name, nameSize+1);

  2169.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2170. 

  2171.                 CARLA_SAFE_ASSERT_INT2(index < pData->midiprog.count, index, pData->midiprog.count);

  2172. 

  2173.                 if (index < pData->midiprog.count)

  2174.                 {

  2175.                     if (pData->midiprog.data[index].name != nullptr)

  2176.                         delete[] pData->midiprog.data[index].name;

  2177.                     pData->midiprog.data[index].bank    = bank;

  2178.                     pData->midiprog.data[index].program = program;

  2179.                     pData->midiprog.data[index].name    = carla_strdup(name);

  2180.                 }

  2181.             }   break;

  2182. 

  2183.             case kPluginBridgeNonRtServerSetCustomData: {

  2184.                 // uint/size, str[], uint/size, str[], uint/size, str[]

  2185. 

  2186.                 // type

  2187.                 const uint32_t typeSize(fShmNonRtServerControl.readUInt());

  2188.                 char type[typeSize+1];

  2189.                 carla_zeroChar(type, typeSize+1);

  2190.                 fShmNonRtServerControl.readCustomData(type, typeSize);

  2191. 

  2192.                 // key

  2193.                 const uint32_t keySize(fShmNonRtServerControl.readUInt());

  2194.                 char key[keySize+1];

  2195.                 carla_zeroChar(key, keySize+1);

  2196.                 fShmNonRtServerControl.readCustomData(key, keySize);

  2197. 

  2198.                 // value

  2199.                 const uint32_t valueSize(fShmNonRtServerControl.readUInt());

  2200.                 char value[valueSize+1];

  2201.                 carla_zeroChar(value, valueSize+1);

  2202.                 fShmNonRtServerControl.readCustomData(value, valueSize);

  2203. 

  2204.                 CarlaPlugin::setCustomData(type, key, value, false);

  2205.             }   break;

  2206. 

  2207.             case kPluginBridgeNonRtServerSetChunkDataFile: {

  2208.                 // uint/size, str[] (filename)

  2209. 

  2210.                 // chunkFilePath

  2211.                 const uint32_t chunkFilePathSize(fShmNonRtServerControl.readUInt());

  2212.                 char chunkFilePath[chunkFilePathSize+1];

  2213.                 carla_zeroChar(chunkFilePath, chunkFilePathSize+1);

  2214.                 fShmNonRtServerControl.readCustomData(chunkFilePath, chunkFilePathSize);

  2215. 

  2216.                 String realChunkFilePath(chunkFilePath);

  2217.                 carla_stdout("chunk save path BEFORE => %s", realChunkFilePath.toRawUTF8());

  2218. 

  2219. #ifndef CARLA_OS_WIN

  2220.                 // Using Wine, fix temp dir

  2221.                 if (fBinaryType == BINARY_WIN32 || fBinaryType == BINARY_WIN64)

  2222.                 {

  2223.                     // Get WINEPREFIX

  2224.                     String wineDir;

  2225.                     if (const char* const WINEPREFIX = getenv("WINEPREFIX"))

  2226.                         wineDir = String(WINEPREFIX);

  2227.                     else

  2228.                         wineDir = File::getSpecialLocation(File::userHomeDirectory).getFullPathName() + "/.wine";

  2229. 

  2230.                     const StringArray driveLetterSplit(StringArray::fromTokens(realChunkFilePath, ":/", ""));

  2231. 

  2232.                     realChunkFilePath  = wineDir;

  2233.                     realChunkFilePath += "/drive_";

  2234.                     realChunkFilePath += driveLetterSplit[0].toLowerCase();

  2235.                     realChunkFilePath += "/";

  2236.                     realChunkFilePath += driveLetterSplit[1];

  2237. 

  2238.                     realChunkFilePath  = realChunkFilePath.replace("\\", "/");

  2239.                     carla_stdout("chunk save path AFTER => %s", realChunkFilePath.toRawUTF8());

  2240.                 }

  2241. #endif

  2242. 

  2243.                 File chunkFile(realChunkFilePath);

  2244. 

  2245.                 if (chunkFile.existsAsFile())

  2246.                 {

  2247.                     fInfo.chunk = carla_getChunkFromBase64String(chunkFile.loadFileAsString().toRawUTF8());

  2248.                     chunkFile.deleteFile();

  2249.                     carla_stderr("chunk data final");

  2250.                 }

  2251.             }   break;

  2252. 

  2253.             case kPluginBridgeNonRtServerSetLatency: {

  2254.                 // uint

  2255.             }   break;

  2256. 

  2257.             case kPluginBridgeNonRtServerReady:

  2258.                 fInitiated = true;

  2259.                 break;

  2260. 

  2261.             case kPluginBridgeNonRtServerSaved:

  2262.                 fSaved = true;

  2263.                 break;

  2264. 

  2265.             case kPluginBridgeNonRtServerUiClosed:

  2266.                 pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2267.                 break;

  2268. 

  2269.             case kPluginBridgeNonRtServerError: {

  2270.                 // error

  2271.                 const uint32_t errorSize(fShmNonRtServerControl.readUInt());

  2272.                 char error[errorSize+1];

  2273.                 carla_zeroChar(error, errorSize+1);

  2274.                 fShmNonRtServerControl.readCustomData(error, errorSize);

  2275. 

  2276.                 pData->engine->setLastError(error);

  2277. 

  2278.                 fInitError = true;

  2279.                 fInitiated = true;

  2280.             }   break;

  2281.             }

  2282.         }

  2283.     }

  2284. 

  2285.     // -------------------------------------------------------------------

  2286. 

  2287.     uintptr_t getUiBridgeProcessId() const noexcept override

  2288.     {

  2289.         return fBridgeThread.getProcessPID();

  2290.     }

  2291. 

  2292.     const void* getExtraStuff() const noexcept override

  2293.     {

  2294.         return fBridgeBinary.isNotEmpty() ? fBridgeBinary.buffer() : nullptr;

  2295.     }

  2296. 

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

  2298. 

  2299.     bool init(const char* const filename, const char* const name, const char* const label, const char* const bridgeBinary)

  2300.     {

  2301.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2302. 

  2303.         // ---------------------------------------------------------------

  2304.         // first checks

  2305. 

  2306.         if (pData->client != nullptr)

  2307.         {

  2308.             pData->engine->setLastError("Plugin client is already registered");

  2309.             return false;

  2310.         }

  2311. 

  2312.         if (bridgeBinary == nullptr || bridgeBinary[0] == '\0')

  2313.         {

  2314.             pData->engine->setLastError("null bridge binary");

  2315.             return false;

  2316.         }

  2317. 

  2318.         // ---------------------------------------------------------------

  2319.         // set info

  2320. 

  2321.         if (name != nullptr && name[0] != '\0')

  2322.             pData->name = pData->engine->getUniquePluginName(name);

  2323. 

  2324.         if (filename != nullptr && filename[0] != '\0')

  2325.             pData->filename = carla_strdup(filename);

  2326.         else

  2327.             pData->filename = carla_strdup("");

  2328. 

  2329.         fBridgeBinary = bridgeBinary;

  2330. 

  2331.         std::srand(static_cast<uint>(std::time(nullptr)));

  2332. 

  2333.         // ---------------------------------------------------------------

  2334.         // init sem/shm

  2335. 

  2336.         if (! fShmAudioPool.initialize())

  2337.         {

  2338.             carla_stdout("Failed to initialize shared memory audio pool");

  2339.             return false;

  2340.         }

  2341. 

  2342.         if (! fShmRtClientControl.initialize())

  2343.         {

  2344.             carla_stdout("Failed to initialize RT client control");

  2345.             fShmAudioPool.clear();

  2346.             return false;

  2347.         }

  2348. 

  2349.         if (! fShmNonRtClientControl.initialize())

  2350.         {

  2351.             carla_stdout("Failed to initialize Non-RT client control");

  2352.             fShmRtClientControl.clear();

  2353.             fShmAudioPool.clear();

  2354.             return false;

  2355.         }

  2356. 

  2357.         if (! fShmNonRtServerControl.initialize())

  2358.         {

  2359.             carla_stdout("Failed to initialize Non-RT server control");

  2360.             fShmNonRtClientControl.clear();

  2361.             fShmRtClientControl.clear();

  2362.             fShmAudioPool.clear();

  2363.             return false;

  2364.         }

  2365. 

  2366.         // ---------------------------------------------------------------

  2367. 

  2368.         carla_stdout("Carla Server Info:");

  2369.         carla_stdout("  sizeof(BridgeRtClientData):    " P_SIZE, sizeof(BridgeRtClientData));

  2370.         carla_stdout("  sizeof(BridgeNonRtClientData): " P_SIZE, sizeof(BridgeNonRtClientData));

  2371.         carla_stdout("  sizeof(BridgeNonRtServerData): " P_SIZE, sizeof(BridgeNonRtServerData));

  2372. 

  2373.         // initial values

  2374.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientNull);

  2375.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeRtClientData)));

  2376.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeNonRtClientData)));

  2377.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeNonRtServerData)));

  2378. 

  2379.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  2380.         fShmNonRtClientControl.writeUInt(pData->engine->getBufferSize());

  2381. 

  2382.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  2383.         fShmNonRtClientControl.writeDouble(pData->engine->getSampleRate());

  2384. 

  2385.         fShmNonRtClientControl.commitWrite();

  2386. 

  2387.         // init bridge thread

  2388.         {

  2389.             char shmIdsStr[6*4+1];

  2390.             carla_zeroChar(shmIdsStr, 6*4+1);

  2391. 

  2392.             std::strncpy(shmIdsStr+6*0, &fShmAudioPool.filename[fShmAudioPool.filename.length()-6], 6);

  2393.             std::strncpy(shmIdsStr+6*1, &fShmRtClientControl.filename[fShmRtClientControl.filename.length()-6], 6);

  2394.             std::strncpy(shmIdsStr+6*2, &fShmNonRtClientControl.filename[fShmNonRtClientControl.filename.length()-6], 6);

  2395.             std::strncpy(shmIdsStr+6*3, &fShmNonRtServerControl.filename[fShmNonRtServerControl.filename.length()-6], 6);

  2396. 

  2397.             fBridgeThread.setData(bridgeBinary, label, shmIdsStr);

  2398.             fBridgeThread.startThread();

  2399.         }

  2400. 

  2401.         fInitiated = false;

  2402.         fLastPongCounter = 0;

  2403. 

  2404.         for (; fLastPongCounter++ < 500;)

  2405.         {

  2406.             if (fInitiated || ! fBridgeThread.isThreadRunning())

  2407.                 break;

  2408.             carla_msleep(20);

  2409.             pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2410.             pData->engine->idle();

  2411.             idle();

  2412.         }

  2413. 

  2414.         fLastPongCounter = -1;

  2415. 

  2416.         if (fInitError || ! fInitiated)

  2417.         {

  2418.             fBridgeThread.stopThread(6000);

  2419. 

  2420.             if (! fInitError)

  2421.                 pData->engine->setLastError("Timeout while waiting for a response from plugin-bridge\n(or the plugin crashed on initialization?)");

  2422. 

  2423.             return false;

  2424.         }

  2425. 

  2426.         // ---------------------------------------------------------------

  2427.         // register client

  2428. 

  2429.         if (pData->name == nullptr)

  2430.         {

  2431.             if (label != nullptr && label[0] != '\0')

  2432.                 pData->name = pData->engine->getUniquePluginName(label);

  2433.             else

  2434.                 pData->name = pData->engine->getUniquePluginName("unknown");

  2435.         }

  2436. 

  2437.         pData->client = pData->engine->addClient(this);

  2438. 

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

  2440.         {

  2441.             pData->engine->setLastError("Failed to register plugin client");

  2442.             return false;

  2443.         }

  2444. 

  2445.         return true;

  2446.     }

  2447. 

  2448. private:

  2449.     const BinaryType fBinaryType;

  2450.     const PluginType fPluginType;

  2451. 

  2452.     bool fInitiated;

  2453.     bool fInitError;

  2454.     bool fSaved;

  2455.     bool fTimedOut;

  2456. 

  2457.     int32_t fLastPongCounter;

  2458. 

  2459.     CarlaString             fBridgeBinary;

  2460.     CarlaPluginBridgeThread fBridgeThread;

  2461. 

  2462.     BridgeAudioPool          fShmAudioPool;

  2463.     BridgeRtClientControl    fShmRtClientControl;

  2464.     BridgeNonRtClientControl fShmNonRtClientControl;

  2465.     BridgeNonRtServerControl fShmNonRtServerControl;

  2466. 

  2467.     struct Info {

  2468.         uint32_t aIns, aOuts;

  2469.         uint32_t cvIns, cvOuts;

  2470.         uint32_t mIns, mOuts;

  2471.         PluginCategory category;

  2472.         uint optionsAvailable;

  2473.         int64_t uniqueId;

  2474.         CarlaString name;

  2475.         CarlaString label;

  2476.         CarlaString maker;

  2477.         CarlaString copyright;

  2478.         std::vector<uint8_t> chunk;

  2479. 

  2480.         Info()

  2481.             : aIns(0),

  2482.               aOuts(0),

  2483.               cvIns(0),

  2484.               cvOuts(0),

  2485.               mIns(0),

  2486.               mOuts(0),

  2487.               category(PLUGIN_CATEGORY_NONE),

  2488.               optionsAvailable(0),

  2489.               uniqueId(0),

  2490.               name(),

  2491.               label(),

  2492.               maker(),

  2493.               copyright(),

  2494.               chunk() {}

  2495.     } fInfo;

  2496. 

  2497.     BridgeParamInfo* fParams;

  2498. 

  2499.     void resizeAudioPool(const uint32_t bufferSize)

  2500.     {

  2501.         fShmAudioPool.resize(bufferSize, fInfo.aIns+fInfo.aOuts, fInfo.cvIns+fInfo.cvOuts);

  2502. 

  2503.         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientSetAudioPool);

  2504.         fShmRtClientControl.writeULong(static_cast<uint64_t>(fShmAudioPool.size));

  2505. 

  2506.         fShmRtClientControl.commitWrite();

  2507. 

  2508.         waitForClient();

  2509.     }

  2510. 

  2511.     bool waitForClient(const uint secs = 5)

  2512.     {

  2513.         CARLA_SAFE_ASSERT_RETURN(! fTimedOut, false);

  2514. 

  2515.         if (! fShmRtClientControl.waitForClient(secs))

  2516.         {

  2517.             carla_stderr("waitForClient() timeout here");

  2518.             fTimedOut = true;

  2519.             return false;

  2520.         }

  2521. 

  2522.         return true;

  2523.     }

  2524. 

  2525.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginBridge)

  2526. };

  2527. 

  2528. CARLA_BACKEND_END_NAMESPACE

  2529. 

  2530. // -------------------------------------------------------------------------------------------------------------------

  2531. 

  2532. CARLA_BACKEND_START_NAMESPACE

  2533. 

  2534. CarlaPlugin* CarlaPlugin::newBridge(const Initializer& init, BinaryType btype, PluginType ptype, const char* const bridgeBinary)

  2535. {

  2536.     carla_debug("CarlaPlugin::newBridge({%p, \"%s\", \"%s\", \"%s\"}, %s, %s, \"%s\")", init.engine, init.filename, init.name, init.label, BinaryType2Str(btype), PluginType2Str(ptype), bridgeBinary);

  2537. 

  2538.     if (bridgeBinary == nullptr || bridgeBinary[0] == '\0')

  2539.     {

  2540.         init.engine->setLastError("Bridge not possible, bridge-binary not found");

  2541.         return nullptr;

  2542.     }

  2543. 

  2544.     CarlaPluginBridge* const plugin(new CarlaPluginBridge(init.engine, init.id, btype, ptype));

  2545. 

  2546.     if (! plugin->init(init.filename, init.name, init.label, bridgeBinary))

  2547.     {

  2548.         delete plugin;

  2549.         return nullptr;

  2550.     }

  2551. 

  2552.     plugin->reload();

  2553. 

  2554.     bool canRun = true;

  2555. 

  2556.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK)

  2557.     {

  2558.         if (! plugin->canRunInRack())

  2559.         {

  2560.             init.engine->setLastError("Carla's rack mode can only work with Stereo Bridged plugins, sorry!");

  2561.             canRun = false;

  2562.         }

  2563.         else if (plugin->getCVInCount() > 0 || plugin->getCVInCount() > 0)

  2564.         {

  2565.             init.engine->setLastError("Carla's rack mode cannot work with plugins that have CV ports, sorry!");

  2566.             canRun = false;

  2567.         }

  2568.     }

  2569.     else if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_PATCHBAY && (plugin->getCVInCount() > 0 || plugin->getCVInCount() > 0))

  2570.     {

  2571.         init.engine->setLastError("CV ports in patchbay mode is still TODO");

  2572.         canRun = false;

  2573.     }

  2574. 

  2575.     if (! canRun)

  2576.     {

  2577.         delete plugin;

  2578.         return nullptr;

  2579.     }

  2580. 

  2581.     return plugin;

  2582. }

  2583. 

  2584. CARLA_BACKEND_END_NAMESPACE

  2585. 

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