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

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

  20. #endif

  21. 

  22. #include "CarlaPluginInternal.hpp"

  23. 

  24. #include "CarlaBackendUtils.hpp"

  25. #include "CarlaBase64Utils.hpp"

  26. #include "CarlaBridgeUtils.hpp"

  27. #include "CarlaEngineUtils.hpp"

  28. #include "CarlaMathUtils.hpp"

  29. #include "CarlaShmUtils.hpp"

  30. #include "CarlaThread.hpp"

  31. 

  32. #include "jackbridge/JackBridge.hpp"

  33. 

  34. #include <ctime>

  35. 

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

  37. 

  38. using juce::ChildProcess;

  39. using juce::File;

  40. using juce::ScopedPointer;

  41. using juce::String;

  42. using juce::StringArray;

  43. using juce::Time;

  44. 

  45. CARLA_BACKEND_START_NAMESPACE

  46. 

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

  48. 

  49. struct BridgeAudioPool {

  50.     CarlaString filename;

  51.     std::size_t size;

  52.     float* data;

  53.     shm_t shm;

  54. 

  55.     BridgeAudioPool() noexcept

  56.         : filename(),

  57.           size(0),

  58.           data(nullptr)

  59. #ifdef CARLA_PROPER_CPP11_SUPPORT

  60.         , shm(shm_t_INIT) {}

  61. #else

  62.     {

  63.         shm = shm_t_INIT;

  64.     }

  65. #endif

  66. 

  67.     ~BridgeAudioPool() noexcept

  68.     {

  69.         // should be cleared by now

  70.         CARLA_SAFE_ASSERT(data == nullptr);

  71. 

  72.         clear();

  73.     }

  74. 

  75.     bool initialize() noexcept

  76.     {

  77.         char tmpFileBase[64];

  78. 

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

  80. 

  81.         shm = carla_shm_create_temp(tmpFileBase);

  82. 

  83.         if (! carla_is_shm_valid(shm))

  84.             return false;

  85. 

  86.         filename = tmpFileBase;

  87.         return true;

  88.     }

  89. 

  90.     void clear() noexcept

  91.     {

  92.         filename.clear();

  93. 

  94.         if (! carla_is_shm_valid(shm))

  95.         {

  96.             CARLA_SAFE_ASSERT(data == nullptr);

  97.             return;

  98.         }

  99. 

  100.         if (data != nullptr)

  101.         {

  102.             carla_shm_unmap(shm, data);

  103.             data = nullptr;

  104.         }

  105. 

  106.         size = 0;

  107.         carla_shm_close(shm);

  108.         carla_shm_init(shm);

  109.     }

  110. 

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

  112.     {

  113.         CARLA_SAFE_ASSERT_RETURN(carla_is_shm_valid(shm),);

  114. 

  115.         if (data != nullptr)

  116.             carla_shm_unmap(shm, data);

  117. 

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

  119. 

  120.         if (size == 0)

  121.             size = sizeof(float);

  122. 

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

  124.     }

  125. 

  126.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeAudioPool)

  127. };

  128. 

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

  130. 

  131. struct BridgeRtClientControl : public CarlaRingBufferControl<SmallStackBuffer> {

  132.     BridgeRtClientData* data;

  133.     CarlaString filename;

  134.     bool needsSemDestroy;

  135.     shm_t shm;

  136. 

  137.     BridgeRtClientControl()

  138.         : data(nullptr),

  139.           filename(),

  140.           needsSemDestroy(false),

  141. #ifdef CARLA_PROPER_CPP11_SUPPORT

  142.           shm(shm_t_INIT) {}

  143. #else

  144.     {

  145.         shm = shm_t_INIT;

  146.     }

  147. #endif

  148. 

  149.     ~BridgeRtClientControl() noexcept override

  150.     {

  151.         // should be cleared by now

  152.         CARLA_SAFE_ASSERT(data == nullptr);

  153. 

  154.         clear();

  155.     }

  156. 

  157.     bool initialize() noexcept

  158.     {

  159.         char tmpFileBase[64];

  160. 

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

  162. 

  163.         shm = carla_shm_create_temp(tmpFileBase);

  164. 

  165.         if (! carla_is_shm_valid(shm))

  166.             return false;

  167. 

  168.         if (! mapData())

  169.         {

  170.             carla_shm_close(shm);

  171.             carla_shm_init(shm);

  172.             return false;

  173.         }

  174. 

  175.         CARLA_SAFE_ASSERT(data != nullptr);

  176. 

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

  178.         {

  179.             unmapData();

  180.             carla_shm_close(shm);

  181.             carla_shm_init(shm);

  182.             return false;

  183.         }

  184. 

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

  186.         {

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

  188.             unmapData();

  189.             carla_shm_close(shm);

  190.             carla_shm_init(shm);

  191.             return false;

  192.         }

  193. 

  194.         filename = tmpFileBase;

  195.         needsSemDestroy = true;

  196.         return true;

  197.     }

  198. 

  199.     void clear() noexcept

  200.     {

  201.         filename.clear();

  202. 

  203.         if (needsSemDestroy)

  204.         {

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

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

  207.             needsSemDestroy = false;

  208.         }

  209. 

  210.         if (data != nullptr)

  211.             unmapData();

  212. 

  213.         if (! carla_is_shm_valid(shm))

  214.             return;

  215. 

  216.         carla_shm_close(shm);

  217.         carla_shm_init(shm);

  218.     }

  219. 

  220.     bool mapData() noexcept

  221.     {

  222.         CARLA_SAFE_ASSERT(data == nullptr);

  223. 

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

  225.         {

  226.             carla_zeroStruct(data->sem);

  227.             carla_zeroStruct(data->timeInfo);

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

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

  230.             return true;

  231.         }

  232. 

  233.         return false;

  234.     }

  235. 

  236.     void unmapData() noexcept

  237.     {

  238.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  239. 

  240.         carla_shm_unmap(shm, data);

  241.         data = nullptr;

  242. 

  243.         setRingBuffer(nullptr, false);

  244.     }

  245. 

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

  247.     {

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

  249. 

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

  251. 

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

  253.     }

  254. 

  255.     void writeOpcode(const PluginBridgeRtClientOpcode opcode) noexcept

  256.     {

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

  258.     }

  259. 

  260.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeRtClientControl)

  261. };

  262. 

  263. // -------------------------------------------------------------------------------------------------------------------

  264. 

  265. struct BridgeNonRtClientControl : public CarlaRingBufferControl<BigStackBuffer> {

  266.     BridgeNonRtClientData* data;

  267.     CarlaString filename;

  268.     CarlaMutex mutex;

  269.     shm_t shm;

  270. 

  271.     BridgeNonRtClientControl() noexcept

  272.         : data(nullptr),

  273.           filename(),

  274.           mutex()

  275. #ifdef CARLA_PROPER_CPP11_SUPPORT

  276.         , shm(shm_t_INIT) {}

  277. #else

  278.     {

  279.         shm = shm_t_INIT;

  280.     }

  281. #endif

  282. 

  283.     ~BridgeNonRtClientControl() noexcept override

  284.     {

  285.         // should be cleared by now

  286.         CARLA_SAFE_ASSERT(data == nullptr);

  287. 

  288.         clear();

  289.     }

  290. 

  291.     bool initialize() noexcept

  292.     {

  293.         char tmpFileBase[64];

  294. 

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

  296. 

  297.         shm = carla_shm_create_temp(tmpFileBase);

  298. 

  299.         if (! carla_is_shm_valid(shm))

  300.             return false;

  301. 

  302.         if (! mapData())

  303.         {

  304.             carla_shm_close(shm);

  305.             carla_shm_init(shm);

  306.             return false;

  307.         }

  308. 

  309.         CARLA_SAFE_ASSERT(data != nullptr);

  310. 

  311.         filename = tmpFileBase;

  312.         return true;

  313.     }

  314. 

  315.     void clear() noexcept

  316.     {

  317.         filename.clear();

  318. 

  319.         if (data != nullptr)

  320.             unmapData();

  321. 

  322.         if (! carla_is_shm_valid(shm))

  323.             return;

  324. 

  325.         carla_shm_close(shm);

  326.         carla_shm_init(shm);

  327.     }

  328. 

  329.     bool mapData() noexcept

  330.     {

  331.         CARLA_SAFE_ASSERT(data == nullptr);

  332. 

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

  334.         {

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

  336.             return true;

  337.         }

  338. 

  339.         return false;

  340.     }

  341. 

  342.     void unmapData() noexcept

  343.     {

  344.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  345. 

  346.         carla_shm_unmap(shm, data);

  347.         data = nullptr;

  348. 

  349.         setRingBuffer(nullptr, false);

  350.     }

  351. 

  352.     void writeOpcode(const PluginBridgeNonRtClientOpcode opcode) noexcept

  353.     {

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

  355.     }

  356. 

  357.     void waitIfDataIsReachingLimit() noexcept

  358.     {

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

  360.             return;

  361. 

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

  363.         {

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

  365.             {

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

  367.                 writeOpcode(kPluginBridgeNonRtClientPing);

  368.                 commitWrite();

  369.                 return;

  370.             }

  371.             carla_msleep(20);

  372.         }

  373. 

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

  375.     }

  376. 

  377.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtClientControl)

  378. };

  379. 

  380. // -------------------------------------------------------------------------------------------------------------------

  381. 

  382. struct BridgeNonRtServerControl : public CarlaRingBufferControl<HugeStackBuffer> {

  383.     BridgeNonRtServerData* data;

  384.     CarlaString filename;

  385.     shm_t shm;

  386. 

  387.     BridgeNonRtServerControl() noexcept

  388.         : data(nullptr),

  389.           filename()

  390. #ifdef CARLA_PROPER_CPP11_SUPPORT

  391.         , shm(shm_t_INIT) {}

  392. #else

  393.     {

  394.         shm = shm_t_INIT;

  395.     }

  396. #endif

  397. 

  398.     ~BridgeNonRtServerControl() noexcept override

  399.     {

  400.         // should be cleared by now

  401.         CARLA_SAFE_ASSERT(data == nullptr);

  402. 

  403.         clear();

  404.     }

  405. 

  406.     bool initialize() noexcept

  407.     {

  408.         char tmpFileBase[64];

  409. 

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

  411. 

  412.         shm = carla_shm_create_temp(tmpFileBase);

  413. 

  414.         if (! carla_is_shm_valid(shm))

  415.             return false;

  416. 

  417.         if (! mapData())

  418.         {

  419.             carla_shm_close(shm);

  420.             carla_shm_init(shm);

  421.             return false;

  422.         }

  423. 

  424.         CARLA_SAFE_ASSERT(data != nullptr);

  425. 

  426.         filename = tmpFileBase;

  427.         return true;

  428.     }

  429. 

  430.     void clear() noexcept

  431.     {

  432.         filename.clear();

  433. 

  434.         if (data != nullptr)

  435.             unmapData();

  436. 

  437.         if (! carla_is_shm_valid(shm))

  438.             return;

  439. 

  440.         carla_shm_close(shm);

  441.         carla_shm_init(shm);

  442.     }

  443. 

  444.     bool mapData() noexcept

  445.     {

  446.         CARLA_SAFE_ASSERT(data == nullptr);

  447. 

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

  449.         {

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

  451.             return true;

  452.         }

  453. 

  454.         return false;

  455.     }

  456. 

  457.     void unmapData() noexcept

  458.     {

  459.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  460. 

  461.         carla_shm_unmap(shm, data);

  462.         data = nullptr;

  463. 

  464.         setRingBuffer(nullptr, false);

  465.     }

  466. 

  467.     PluginBridgeNonRtServerOpcode readOpcode() noexcept

  468.     {

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

  470.     }

  471. 

  472.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtServerControl)

  473. };

  474. 

  475. // -------------------------------------------------------------------------------------------------------------------

  476. 

  477. struct BridgeParamInfo {

  478.     float value;

  479.     CarlaString name;

  480.     CarlaString symbol;

  481.     CarlaString unit;

  482. 

  483.     BridgeParamInfo() noexcept

  484.         : value(0.0f),

  485.           name(),

  486.           symbol(),

  487.           unit() {}

  488. 

  489.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeParamInfo)

  490. };

  491. 

  492. // -------------------------------------------------------------------------------------------------------------------

  493. 

  494. class CarlaPluginBridgeThread : public CarlaThread

  495. {

  496. public:

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

  498.         : CarlaThread("CarlaPluginBridgeThread"),

  499.           kEngine(engine),

  500.           kPlugin(plugin),

  501.           fBinary(),

  502.           fLabel(),

  503.           fShmIds(),

  504.           fProcess(),

  505.           leakDetector_CarlaPluginBridgeThread() {}

  506. 

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

  508.     {

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

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

  511.         CARLA_SAFE_ASSERT(! isThreadRunning());

  512. 

  513.         fBinary = binary;

  514.         fShmIds = shmIds;

  515. 

  516.         if (label != nullptr)

  517.             fLabel = label;

  518.         if (fLabel.isEmpty())

  519.             fLabel = "\"\"";

  520.     }

  521. 

  522.     uintptr_t getProcessPID() const noexcept

  523.     {

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

  525. 

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

  527.     }

  528. 

  529. protected:

  530.     void run()

  531.     {

  532.         if (fProcess == nullptr)

  533.         {

  534.             fProcess = new ChildProcess();

  535.         }

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

  537.         {

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

  539.         }

  540. 

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

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

  543. 

  544.         if (name.isEmpty())

  545.             name = "(none)";

  546. 

  547.         if (filename.isEmpty())

  548.             filename = "\"\"";

  549. 

  550.         StringArray arguments;

  551. 

  552. #ifndef CARLA_OS_WIN

  553.         // start with "wine" if needed

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

  555.             arguments.add("wine");

  556. #endif

  557. 

  558.         // binary

  559.         arguments.add(fBinary);

  560. 

  561.         // plugin type

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

  563. 

  564.         // filename

  565.         arguments.add(filename);

  566. 

  567.         // label

  568.         arguments.add(fLabel);

  569. 

  570.         // uniqueId

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

  572. 

  573.         bool started;

  574. 

  575.         {

  576.             char strBuf[STR_MAX+1];

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

  578. 

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

  580.             const ScopedEngineEnvironmentLocker _seel(kEngine);

  581. 

  582. #ifdef CARLA_OS_LINUX

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

  584. 

  585.             if (oldPreload != nullptr)

  586.                 ::unsetenv("LD_PRELOAD");

  587. #endif

  588. 

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

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

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

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

  593. 

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

  595.             carla_setenv("ENGINE_OPTION_MAX_PARAMETERS", strBuf);

  596. 

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

  598.             carla_setenv("ENGINE_OPTION_UI_BRIDGES_TIMEOUT",strBuf);

  599. 

  600.             if (options.pathLADSPA != nullptr)

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

  602.             else

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

  604. 

  605.             if (options.pathDSSI != nullptr)

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

  607.             else

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

  609. 

  610.             if (options.pathLV2 != nullptr)

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

  612.             else

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

  614. 

  615.             if (options.pathVST2 != nullptr)

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

  617.             else

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

  619. 

  620.             if (options.pathVST3 != nullptr)

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

  622.             else

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

  624. 

  625.             if (options.pathGIG != nullptr)

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

  627.             else

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

  629. 

  630.             if (options.pathSF2 != nullptr)

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

  632.             else

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

  634. 

  635.             if (options.pathSFZ != nullptr)

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

  637.             else

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

  639. 

  640.             if (options.binaryDir != nullptr)

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

  642.             else

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

  644. 

  645.             if (options.resourceDir != nullptr)

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

  647.             else

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

  649. 

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

  651. 

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

  653.             carla_setenv("ENGINE_OPTION_FRONTEND_WIN_ID", strBuf);

  654. 

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

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

  657. 

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

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

  660. 

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

  662. 

  663. #ifdef CARLA_OS_LINUX

  664.             if (oldPreload != nullptr)

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

  666. #endif

  667.         }

  668. 

  669.         if (! started)

  670.         {

  671.             carla_stdout("failed!");

  672.             fProcess = nullptr;

  673.             return;

  674.         }

  675. 

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

  677.             carla_sleep(1);

  678. 

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

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

  681.         {

  682.             fProcess->waitForProcessToFinish(2000);

  683. 

  684.             if (fProcess->isRunning())

  685.             {

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

  687.                 fProcess->kill();

  688.             }

  689.             else

  690.             {

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

  692.             }

  693.         }

  694.         else

  695.         {

  696.             // forced quit, may have crashed

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

  698.             {

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

  700. 

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

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

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

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

  705.             }

  706.             else

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

  708.         }

  709. 

  710.         carla_stdout("plugin bridge finished");

  711.         fProcess = nullptr;

  712.     }

  713. 

  714. private:

  715.     CarlaEngine* const kEngine;

  716.     CarlaPlugin* const kPlugin;

  717. 

  718.     String fBinary;

  719.     String fLabel;

  720.     String fShmIds;

  721. 

  722.     ScopedPointer<ChildProcess> fProcess;

  723. 

  724.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginBridgeThread)

  725. };

  726. 

  727. // -------------------------------------------------------------------------------------------------------------------

  728. 

  729. class CarlaPluginBridge : public CarlaPlugin

  730. {

  731. public:

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

  733.         : CarlaPlugin(engine, id),

  734.           fBinaryType(btype),

  735.           fPluginType(ptype),

  736.           fInitiated(false),

  737.           fInitError(false),

  738.           fSaved(true),

  739.           fTimedOut(false),

  740.           fTimedError(false),

  741.           fLastPongTime(-1),

  742.           fBridgeBinary(),

  743.           fBridgeThread(engine, this),

  744.           fShmAudioPool(),

  745.           fShmRtClientControl(),

  746.           fShmNonRtClientControl(),

  747.           fShmNonRtServerControl(),

  748.           fInfo(),

  749.           fParams(nullptr),

  750.           leakDetector_CarlaPluginBridge()

  751.     {

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

  753. 

  754.         pData->hints |= PLUGIN_IS_BRIDGE;

  755.     }

  756. 

  757.     ~CarlaPluginBridge() override

  758.     {

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

  760. 

  761.         // close UI

  762.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  763.             pData->transientTryCounter = 0;

  764. 

  765.         pData->singleMutex.lock();

  766.         pData->masterMutex.lock();

  767. 

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

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

  770. 

  771.         if (pData->active)

  772.         {

  773.             deactivate();

  774.             pData->active = false;

  775.         }

  776. 

  777.         if (fBridgeThread.isThreadRunning())

  778.         {

  779.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientQuit);

  780.             fShmNonRtClientControl.commitWrite();

  781. 

  782.             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientQuit);

  783.             fShmRtClientControl.commitWrite();

  784. 

  785.             if (! fTimedOut)

  786.                 waitForClient("stopping", 3);

  787.         }

  788. 

  789.         fBridgeThread.stopThread(3000);

  790. 

  791.         fShmNonRtServerControl.clear();

  792.         fShmNonRtClientControl.clear();

  793.         fShmRtClientControl.clear();

  794.         fShmAudioPool.clear();

  795. 

  796.         clearBuffers();

  797. 

  798.         fInfo.chunk.clear();

  799.     }

  800. 

  801.     // -------------------------------------------------------------------

  802.     // Information (base)

  803. 

  804.     BinaryType getBinaryType() const noexcept

  805.     {

  806.         return fBinaryType;

  807.     }

  808. 

  809.     PluginType getType() const noexcept override

  810.     {

  811.         return fPluginType;

  812.     }

  813. 

  814.     PluginCategory getCategory() const noexcept override

  815.     {

  816.         return fInfo.category;

  817.     }

  818. 

  819.     int64_t getUniqueId() const noexcept override

  820.     {

  821.         return fInfo.uniqueId;

  822.     }

  823. 

  824.     // -------------------------------------------------------------------

  825.     // Information (count)

  826. 

  827.     uint32_t getMidiInCount() const noexcept override

  828.     {

  829.         return fInfo.mIns;

  830.     }

  831. 

  832.     uint32_t getMidiOutCount() const noexcept override

  833.     {

  834.         return fInfo.mOuts;

  835.     }

  836. 

  837.     // -------------------------------------------------------------------

  838.     // Information (current data)

  839. 

  840.     // TODO - missing getCustomData

  841. 

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

  843.     {

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

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

  846. 

  847.         waitForSaved();

  848. 

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

  850. 

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

  852.         return fInfo.chunk.size();

  853.     }

  854. 

  855.     // -------------------------------------------------------------------

  856.     // Information (per-plugin data)

  857. 

  858.     uint getOptionsAvailable() const noexcept override

  859.     {

  860.         return fInfo.optionsAvailable;

  861.     }

  862. 

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

  864.     {

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

  866. 

  867.         return fParams[parameterId].value;

  868.     }

  869. 

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

  871.     {

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

  873.     }

  874. 

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

  876.     {

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

  878.     }

  879. 

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

  881.     {

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

  883.     }

  884. 

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

  886.     {

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

  888.     }

  889. 

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

  891.     {

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

  893. 

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

  895.     }

  896. 

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

  898.     {

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

  900. 

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

  902.     }

  903. 

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

  905.     {

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

  907. 

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

  909.     }

  910. 

  911.     // -------------------------------------------------------------------

  912.     // Set data (state)

  913. 

  914.     void prepareForSave() noexcept override

  915.     {

  916.         fSaved = false;

  917. 

  918.         {

  919.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  920. 

  921.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPrepareForSave);

  922.             fShmNonRtClientControl.commitWrite();

  923.         }

  924.     }

  925. 

  926.     void waitForSaved()

  927.     {

  928.         if (fSaved)

  929.             return;

  930. 

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

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

  933. 

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

  935. 

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

  937.         {

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

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

  940. 

  941.             if (fSaved)

  942.                 break;

  943. 

  944.             carla_msleep(20);

  945.         }

  946. 

  947.         if (! fSaved)

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

  949.         else

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

  951.     }

  952. 

  953.     // -------------------------------------------------------------------

  954.     // Set data (internal stuff)

  955. 

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

  957.     {

  958.         {

  959.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  960. 

  961.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetOption);

  962.             fShmNonRtClientControl.writeUInt(option);

  963.             fShmNonRtClientControl.writeBool(yesNo);

  964.             fShmNonRtClientControl.commitWrite();

  965.         }

  966. 

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

  968.     }

  969. 

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

  971.     {

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

  973. 

  974.         {

  975.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  976. 

  977.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetCtrlChannel);

  978.             fShmNonRtClientControl.writeShort(channel);

  979.             fShmNonRtClientControl.commitWrite();

  980.         }

  981. 

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

  983.     }

  984. 

  985.     // -------------------------------------------------------------------

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

  987. 

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

  989.     {

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

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

  992. 

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

  994.         fParams[parameterId].value = fixedValue;

  995. 

  996.         {

  997.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  998. 

  999.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterValue);

  1000.             fShmNonRtClientControl.writeUInt(parameterId);

  1001.             fShmNonRtClientControl.writeFloat(value);

  1002.             fShmNonRtClientControl.commitWrite();

  1003.             fShmNonRtClientControl.waitIfDataIsReachingLimit();

  1004.         }

  1005. 

  1006.         CarlaPlugin::setParameterValue(parameterId, fixedValue, sendGui, sendOsc, sendCallback);

  1007.     }

  1008. 

  1009.     void setParameterMidiChannel(const uint32_t parameterId, const uint8_t channel, const bool sendOsc, const bool sendCallback) noexcept override

  1010.     {

  1011.         CARLA_SAFE_ASSERT_RETURN(sendOsc || sendCallback,); // never call this from RT

  1012.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  1013.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1014. 

  1015.         {

  1016.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1017. 

  1018.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterMidiChannel);

  1019.             fShmNonRtClientControl.writeUInt(parameterId);

  1020.             fShmNonRtClientControl.writeByte(channel);

  1021.             fShmNonRtClientControl.commitWrite();

  1022.         }

  1023. 

  1024.         CarlaPlugin::setParameterMidiChannel(parameterId, channel, sendOsc, sendCallback);

  1025.     }

  1026. 

  1027.     void setParameterMidiCC(const uint32_t parameterId, const int16_t cc, const bool sendOsc, const bool sendCallback) noexcept override

  1028.     {

  1029.         CARLA_SAFE_ASSERT_RETURN(sendOsc || sendCallback,); // never call this from RT

  1030.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  1031.         CARLA_SAFE_ASSERT_RETURN(cc >= -1 && cc < MAX_MIDI_CONTROL,);

  1032. 

  1033.         {

  1034.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1035. 

  1036.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterMidiCC);

  1037.             fShmNonRtClientControl.writeUInt(parameterId);

  1038.             fShmNonRtClientControl.writeShort(cc);

  1039.             fShmNonRtClientControl.commitWrite();

  1040.         }

  1041. 

  1042.         CarlaPlugin::setParameterMidiCC(parameterId, cc, sendOsc, sendCallback);

  1043.     }

  1044. 

  1045.     void setProgram(const int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  1046.     {

  1047.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback,); // never call this from RT

  1048.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->prog.count),);

  1049. 

  1050.         {

  1051.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1052. 

  1053.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetProgram);

  1054.             fShmNonRtClientControl.writeInt(index);

  1055.             fShmNonRtClientControl.commitWrite();

  1056.         }

  1057. 

  1058.         CarlaPlugin::setProgram(index, sendGui, sendOsc, sendCallback);

  1059.     }

  1060. 

  1061.     void setMidiProgram(const int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  1062.     {

  1063.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback,); // never call this from RT

  1064.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->midiprog.count),);

  1065. 

  1066.         {

  1067.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1068. 

  1069.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetMidiProgram);

  1070.             fShmNonRtClientControl.writeInt(index);

  1071.             fShmNonRtClientControl.commitWrite();

  1072.         }

  1073. 

  1074.         CarlaPlugin::setMidiProgram(index, sendGui, sendOsc, sendCallback);

  1075.     }

  1076. 

  1077.     void setCustomData(const char* const type, const char* const key, const char* const value, const bool sendGui) override

  1078.     {

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

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

  1081.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

  1082. 

  1083.         if (std::strcmp(type, CUSTOM_DATA_TYPE_PROPERTY) == 0)

  1084.             return CarlaPlugin::setCustomData(type, key, value, sendGui);

  1085. 

  1086.         if (std::strcmp(type, CUSTOM_DATA_TYPE_STRING) == 0 && std::strcmp(key, "__CarlaPingOnOff__") == 0)

  1087.         {

  1088.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1089. 

  1090.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPingOnOff);

  1091.             fShmNonRtClientControl.writeBool(std::strcmp(value, "true") == 0);

  1092.             fShmNonRtClientControl.commitWrite();

  1093. 

  1094.             carla_stdout("Carla bridge server side, OnOff ping checks => %s", value);

  1095.             return;

  1096.         }

  1097. 

  1098.         const uint32_t typeLen(static_cast<uint32_t>(std::strlen(type)));

  1099.         const uint32_t keyLen(static_cast<uint32_t>(std::strlen(key)));

  1100.         const uint32_t valueLen(static_cast<uint32_t>(std::strlen(value)));

  1101. 

  1102.         {

  1103.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1104. 

  1105.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetCustomData);

  1106. 

  1107.             fShmNonRtClientControl.writeUInt(typeLen);

  1108.             fShmNonRtClientControl.writeCustomData(type, typeLen);

  1109. 

  1110.             fShmNonRtClientControl.writeUInt(keyLen);

  1111.             fShmNonRtClientControl.writeCustomData(key, keyLen);

  1112. 

  1113.             fShmNonRtClientControl.writeUInt(valueLen);

  1114.             fShmNonRtClientControl.writeCustomData(value, valueLen);

  1115. 

  1116.             fShmNonRtClientControl.commitWrite();

  1117.         }

  1118. 

  1119.         CarlaPlugin::setCustomData(type, key, value, sendGui);

  1120.     }

  1121. 

  1122.     void setChunkData(const void* const data, const std::size_t dataSize) override

  1123.     {

  1124.         CARLA_SAFE_ASSERT_RETURN(pData->options & PLUGIN_OPTION_USE_CHUNKS,);

  1125.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  1126.         CARLA_SAFE_ASSERT_RETURN(dataSize > 0,);

  1127. 

  1128.         carla_stdout("Carla bridge server side, setChunkData 001");

  1129. 

  1130.         CarlaString dataBase64(CarlaString::asBase64(data, dataSize));

  1131.         CARLA_SAFE_ASSERT_RETURN(dataBase64.length() > 0,);

  1132. 

  1133.         String filePath(File::getSpecialLocation(File::tempDirectory).getFullPathName());

  1134. 

  1135.         filePath += CARLA_OS_SEP_STR ".CarlaChunk_";

  1136.         filePath += fShmAudioPool.filename.buffer() + 18;

  1137. 

  1138.         if (File(filePath).replaceWithText(dataBase64.buffer()))

  1139.         {

  1140.             carla_stdout("Carla bridge server side, setChunkData 002");

  1141. 

  1142.             const uint32_t ulength(static_cast<uint32_t>(filePath.length()));

  1143. 

  1144.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1145. 

  1146.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetChunkDataFile);

  1147.             fShmNonRtClientControl.writeUInt(ulength);

  1148.             fShmNonRtClientControl.writeCustomData(filePath.toRawUTF8(), ulength);

  1149.             fShmNonRtClientControl.commitWrite();

  1150. 

  1151.             carla_stdout("Carla bridge server side, setChunkData sent");

  1152.         }

  1153. 

  1154.         // save data internally as well

  1155.         fInfo.chunk.resize(dataSize);

  1156.         std::memcpy(fInfo.chunk.data(), data, dataSize);

  1157. 

  1158.         carla_stdout("Carla bridge server side, setChunkData saved locally too");

  1159.     }

  1160. 

  1161.     // -------------------------------------------------------------------

  1162.     // Set ui stuff

  1163. 

  1164.     void showCustomUI(const bool yesNo) override

  1165.     {

  1166.         {

  1167.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1168. 

  1169.             fShmNonRtClientControl.writeOpcode(yesNo ? kPluginBridgeNonRtClientShowUI : kPluginBridgeNonRtClientHideUI);

  1170.             fShmNonRtClientControl.commitWrite();

  1171.         }

  1172. 

  1173. #ifndef BUILD_BRIDGE

  1174.         if (yesNo)

  1175.         {

  1176.             pData->tryTransient();

  1177.         }

  1178.         else

  1179.         {

  1180.             pData->transientTryCounter = 0;

  1181.         }

  1182. #endif

  1183.     }

  1184. 

  1185.     void idle() override

  1186.     {

  1187.         if (fBridgeThread.isThreadRunning())

  1188.         {

  1189.             if (fInitiated && fTimedOut && pData->active)

  1190.                 setActive(false, true, true);

  1191. 

  1192.             {

  1193.                 const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1194. 

  1195.                 fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPing);

  1196.                 fShmNonRtClientControl.commitWrite();

  1197.             }

  1198. 

  1199.             try {

  1200.                 handleNonRtData();

  1201.             } CARLA_SAFE_EXCEPTION("handleNonRtData");

  1202.         }

  1203.         else if (fInitiated)

  1204.         {

  1205.             fTimedOut   = true;

  1206.             fTimedError = true;

  1207.             fInitiated  = false;

  1208.             pData->engine->callback(ENGINE_CALLBACK_PLUGIN_UNAVAILABLE, pData->id, 0, 0, 0.0f, "plugin bridge has been stopped or crashed");

  1209.         }

  1210. 

  1211.         CarlaPlugin::idle();

  1212.     }

  1213. 

  1214.     // -------------------------------------------------------------------

  1215.     // Plugin state

  1216. 

  1217.     void reload() override

  1218.     {

  1219.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr,);

  1220.         carla_debug("CarlaPluginBridge::reload() - start");

  1221. 

  1222.         const EngineProcessMode processMode(pData->engine->getProccessMode());

  1223. 

  1224.         // Safely disable plugin for reload

  1225.         const ScopedDisabler sd(this);

  1226. 

  1227.         bool needsCtrlIn, needsCtrlOut;

  1228.         needsCtrlIn = needsCtrlOut = false;

  1229. 

  1230.         if (fInfo.aIns > 0)

  1231.         {

  1232.             pData->audioIn.createNew(fInfo.aIns);

  1233.         }

  1234. 

  1235.         if (fInfo.aOuts > 0)

  1236.         {

  1237.             pData->audioOut.createNew(fInfo.aOuts);

  1238.             needsCtrlIn = true;

  1239.         }

  1240. 

  1241.         if (fInfo.cvIns > 0)

  1242.         {

  1243.             pData->cvIn.createNew(fInfo.cvIns);

  1244.         }

  1245. 

  1246.         if (fInfo.cvOuts > 0)

  1247.         {

  1248.             pData->cvOut.createNew(fInfo.cvOuts);

  1249.         }

  1250. 

  1251.         if (fInfo.mIns > 0)

  1252.             needsCtrlIn = true;

  1253. 

  1254.         if (fInfo.mOuts > 0)

  1255.             needsCtrlOut = true;

  1256. 

  1257.         const uint portNameSize(pData->engine->getMaxPortNameSize());

  1258.         CarlaString portName;

  1259. 

  1260.         // Audio Ins

  1261.         for (uint32_t j=0; j < fInfo.aIns; ++j)

  1262.         {

  1263.             portName.clear();

  1264. 

  1265.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1266.             {

  1267.                 portName  = pData->name;

  1268.                 portName += ":";

  1269.             }

  1270. 

  1271.             if (fInfo.aIns > 1)

  1272.             {

  1273.                 portName += "input_";

  1274.                 portName += CarlaString(j+1);

  1275.             }

  1276.             else

  1277.                 portName += "input";

  1278. 

  1279.             portName.truncate(portNameSize);

  1280. 

  1281.             pData->audioIn.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true);

  1282.             pData->audioIn.ports[j].rindex = j;

  1283.         }

  1284. 

  1285.         // Audio Outs

  1286.         for (uint32_t j=0; j < fInfo.aOuts; ++j)

  1287.         {

  1288.             portName.clear();

  1289. 

  1290.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1291.             {

  1292.                 portName  = pData->name;

  1293.                 portName += ":";

  1294.             }

  1295. 

  1296.             if (fInfo.aOuts > 1)

  1297.             {

  1298.                 portName += "output_";

  1299.                 portName += CarlaString(j+1);

  1300.             }

  1301.             else

  1302.                 portName += "output";

  1303. 

  1304.             portName.truncate(portNameSize);

  1305. 

  1306.             pData->audioOut.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false);

  1307.             pData->audioOut.ports[j].rindex = j;

  1308.         }

  1309. 

  1310.         // TODO - CV

  1311. 

  1312.         if (needsCtrlIn)

  1313.         {

  1314.             portName.clear();

  1315. 

  1316.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1317.             {

  1318.                 portName  = pData->name;

  1319.                 portName += ":";

  1320.             }

  1321. 

  1322.             portName += "event-in";

  1323.             portName.truncate(portNameSize);

  1324. 

  1325.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  1326.         }

  1327. 

  1328.         if (needsCtrlOut)

  1329.         {

  1330.             portName.clear();

  1331. 

  1332.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1333.             {

  1334.                 portName  = pData->name;

  1335.                 portName += ":";

  1336.             }

  1337. 

  1338.             portName += "event-out";

  1339.             portName.truncate(portNameSize);

  1340. 

  1341.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  1342.         }

  1343. 

  1344.         // extra plugin hints

  1345.         pData->extraHints = 0x0;

  1346. 

  1347.         if (fInfo.mIns > 0)

  1348.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  1349. 

  1350.         if (fInfo.mOuts > 0)

  1351.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_OUT;

  1352. 

  1353.         if (fInfo.aIns <= 2 && fInfo.aOuts <= 2 && (fInfo.aIns == fInfo.aOuts || fInfo.aIns == 0 || fInfo.aOuts == 0))

  1354.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1355. 

  1356.         bufferSizeChanged(pData->engine->getBufferSize());

  1357.         reloadPrograms(true);

  1358. 

  1359.         carla_debug("CarlaPluginBridge::reload() - end");

  1360.     }

  1361. 

  1362.     // -------------------------------------------------------------------

  1363.     // Plugin processing

  1364. 

  1365.     void activate() noexcept override

  1366.     {

  1367.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  1368. 

  1369.         {

  1370.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1371. 

  1372.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientActivate);

  1373.             fShmNonRtClientControl.commitWrite();

  1374.         }

  1375. 

  1376.         fTimedOut = false;

  1377. 

  1378.         try {

  1379.             waitForClient("activate", 2);

  1380.         } CARLA_SAFE_EXCEPTION("activate - waitForClient");

  1381.     }

  1382. 

  1383.     void deactivate() noexcept override

  1384.     {

  1385.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  1386. 

  1387.         {

  1388.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1389. 

  1390.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientDeactivate);

  1391.             fShmNonRtClientControl.commitWrite();

  1392.         }

  1393. 

  1394.         fTimedOut = false;

  1395. 

  1396.         try {

  1397.             waitForClient("deactivate", 2);

  1398.         } CARLA_SAFE_EXCEPTION("deactivate - waitForClient");

  1399.     }

  1400. 

  1401.     void process(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames) override

  1402.     {

  1403.         // --------------------------------------------------------------------------------------------------------

  1404.         // Check if active

  1405. 

  1406.         if (fTimedOut || fTimedError || ! pData->active)

  1407.         {

  1408.             // disable any output sound

  1409.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1410.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1411.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1412.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1413.             return;

  1414.         }

  1415. 

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

  1417.         // Check if needs reset

  1418. 

  1419.         if (pData->needsReset)

  1420.         {

  1421.             // TODO

  1422. 

  1423.             pData->needsReset = false;

  1424.         }

  1425. 

  1426.         // --------------------------------------------------------------------------------------------------------

  1427.         // Event Input

  1428. 

  1429.         if (pData->event.portIn != nullptr)

  1430.         {

  1431.             // ----------------------------------------------------------------------------------------------------

  1432.             // MIDI Input (External)

  1433. 

  1434.             if (pData->extNotes.mutex.tryLock())

  1435.             {

  1436.                 for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin(); it.valid(); it.next())

  1437.                 {

  1438.                     const ExternalMidiNote& note(it.getValue());

  1439. 

  1440.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1441. 

  1442.                     uint8_t data1, data2, data3;

  1443.                     data1 = uint8_t((note.velo > 0 ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF) | (note.channel & MIDI_CHANNEL_BIT));

  1444.                     data2 = note.note;

  1445.                     data3 = note.velo;

  1446. 

  1447.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1448.                     fShmRtClientControl.writeUInt(0); // time

  1449.                     fShmRtClientControl.writeByte(0); // port

  1450.                     fShmRtClientControl.writeByte(3); // size

  1451.                     fShmRtClientControl.writeByte(data1);

  1452.                     fShmRtClientControl.writeByte(data2);

  1453.                     fShmRtClientControl.writeByte(data3);

  1454.                     fShmRtClientControl.commitWrite();

  1455.                 }

  1456. 

  1457.                 pData->extNotes.data.clear();

  1458.                 pData->extNotes.mutex.unlock();

  1459. 

  1460.             } // End of MIDI Input (External)

  1461. 

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

  1463.             // Event Input (System)

  1464. 

  1465. #ifndef BUILD_BRIDGE

  1466.             bool allNotesOffSent = false;

  1467. #endif

  1468. 

  1469.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1470.             {

  1471.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1472. 

  1473.                 // Control change

  1474.                 switch (event.type)

  1475.                 {

  1476.                 case kEngineEventTypeNull:

  1477.                     break;

  1478. 

  1479.                 case kEngineEventTypeControl: {

  1480.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1481. 

  1482.                     switch (ctrlEvent.type)

  1483.                     {

  1484.                     case kEngineControlEventTypeNull:

  1485.                         break;

  1486. 

  1487.                     case kEngineControlEventTypeParameter:

  1488. #ifndef BUILD_BRIDGE

  1489.                         // Control backend stuff

  1490.                         if (event.channel == pData->ctrlChannel)

  1491.                         {

  1492.                             float value;

  1493. 

  1494.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1495.                             {

  1496.                                 value = ctrlEvent.value;

  1497.                                 setDryWet(value, false, false);

  1498.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1499.                                 break;

  1500.                             }

  1501. 

  1502.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1503.                             {

  1504.                                 value = ctrlEvent.value*127.0f/100.0f;

  1505.                                 setVolume(value, false, false);

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

  1507.                                 break;

  1508.                             }

  1509. 

  1510.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1511.                             {

  1512.                                 float left, right;

  1513.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1514. 

  1515.                                 if (value < 0.0f)

  1516.                                 {

  1517.                                     left  = -1.0f;

  1518.                                     right = (value*2.0f)+1.0f;

  1519.                                 }

  1520.                                 else if (value > 0.0f)

  1521.                                 {

  1522.                                     left  = (value*2.0f)-1.0f;

  1523.                                     right = 1.0f;

  1524.                                 }

  1525.                                 else

  1526.                                 {

  1527.                                     left  = -1.0f;

  1528.                                     right = 1.0f;

  1529.                                 }

  1530. 

  1531.                                 setBalanceLeft(left, false, false);

  1532.                                 setBalanceRight(right, false, false);

  1533.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1534.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1535.                                 break;

  1536.                             }

  1537.                         }

  1538. #endif

  1539.                         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventParameter);

  1540.                         fShmRtClientControl.writeUInt(event.time);

  1541.                         fShmRtClientControl.writeByte(event.channel);

  1542.                         fShmRtClientControl.writeUShort(event.ctrl.param);

  1543.                         fShmRtClientControl.writeFloat(event.ctrl.value);

  1544.                         fShmRtClientControl.commitWrite();

  1545.                         break;

  1546. 

  1547.                     case kEngineControlEventTypeMidiBank:

  1548.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1549.                         {

  1550.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiBank);

  1551.                             fShmRtClientControl.writeUInt(event.time);

  1552.                             fShmRtClientControl.writeByte(event.channel);

  1553.                             fShmRtClientControl.writeUShort(event.ctrl.param);

  1554.                             fShmRtClientControl.commitWrite();

  1555.                         }

  1556.                         break;

  1557. 

  1558.                     case kEngineControlEventTypeMidiProgram:

  1559.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1560.                         {

  1561.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiProgram);

  1562.                             fShmRtClientControl.writeUInt(event.time);

  1563.                             fShmRtClientControl.writeByte(event.channel);

  1564.                             fShmRtClientControl.writeUShort(event.ctrl.param);

  1565.                             fShmRtClientControl.commitWrite();

  1566.                         }

  1567.                         break;

  1568. 

  1569.                     case kEngineControlEventTypeAllSoundOff:

  1570.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1571.                         {

  1572.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllSoundOff);

  1573.                             fShmRtClientControl.writeUInt(event.time);

  1574.                             fShmRtClientControl.writeByte(event.channel);

  1575.                             fShmRtClientControl.commitWrite();

  1576.                         }

  1577.                         break;

  1578. 

  1579.                     case kEngineControlEventTypeAllNotesOff:

  1580.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1581.                         {

  1582. #ifndef BUILD_BRIDGE

  1583.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1584.                             {

  1585.                                 allNotesOffSent = true;

  1586.                                 sendMidiAllNotesOffToCallback();

  1587.                             }

  1588. #endif

  1589. 

  1590.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllNotesOff);

  1591.                             fShmRtClientControl.writeUInt(event.time);

  1592.                             fShmRtClientControl.writeByte(event.channel);

  1593.                             fShmRtClientControl.commitWrite();

  1594.                         }

  1595.                         break;

  1596.                     } // switch (ctrlEvent.type)

  1597.                     break;

  1598.                 } // case kEngineEventTypeControl

  1599. 

  1600.                 case kEngineEventTypeMidi: {

  1601.                     const EngineMidiEvent& midiEvent(event.midi);

  1602. 

  1603.                     if (midiEvent.size == 0 || midiEvent.size >= MAX_MIDI_VALUE)

  1604.                         continue;

  1605. 

  1606.                     const uint8_t* const midiData(midiEvent.size > EngineMidiEvent::kDataSize ? midiEvent.dataExt : midiEvent.data);

  1607. 

  1608.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiData));

  1609. 

  1610.                     if (status == MIDI_STATUS_CHANNEL_PRESSURE && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1611.                         continue;

  1612.                     if (status == MIDI_STATUS_CONTROL_CHANGE && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1613.                         continue;

  1614.                     if (status == MIDI_STATUS_POLYPHONIC_AFTERTOUCH && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1615.                         continue;

  1616.                     if (status == MIDI_STATUS_PITCH_WHEEL_CONTROL && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1617.                         continue;

  1618. 

  1619.                     // Fix bad note-off

  1620.                     if (status == MIDI_STATUS_NOTE_ON && midiData[2] == 0)

  1621.                         status = MIDI_STATUS_NOTE_OFF;

  1622. 

  1623.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1624.                     fShmRtClientControl.writeUInt(event.time);

  1625.                     fShmRtClientControl.writeByte(midiEvent.port);

  1626.                     fShmRtClientControl.writeByte(midiEvent.size);

  1627. 

  1628.                     fShmRtClientControl.writeByte(uint8_t(midiData[0] | (event.channel & MIDI_CHANNEL_BIT)));

  1629. 

  1630.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1631.                         fShmRtClientControl.writeByte(midiData[j]);

  1632. 

  1633.                     fShmRtClientControl.commitWrite();

  1634. 

  1635.                     if (status == MIDI_STATUS_NOTE_ON)

  1636.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, midiData[1], midiData[2]);

  1637.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1638.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, midiData[1], 0.0f);

  1639.                 } break;

  1640.                 }

  1641.             }

  1642. 

  1643.             pData->postRtEvents.trySplice();

  1644. 

  1645.         } // End of Event Input

  1646. 

  1647.         if (! processSingle(audioIn, audioOut, cvIn, cvOut, frames))

  1648.             return;

  1649. 

  1650.         // --------------------------------------------------------------------------------------------------------

  1651.         // Control and MIDI Output

  1652. 

  1653.         if (pData->event.portOut != nullptr)

  1654.         {

  1655.             float value;

  1656. 

  1657.             for (uint32_t k=0; k < pData->param.count; ++k)

  1658.             {

  1659.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1660.                     continue;

  1661. 

  1662.                 if (pData->param.data[k].midiCC > 0)

  1663.                 {

  1664.                     value = pData->param.ranges[k].getNormalizedValue(fParams[k].value);

  1665.                     pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), value);

  1666.                 }

  1667.             }

  1668. 

  1669.             uint8_t size;

  1670.             uint32_t time;

  1671.             const uint8_t* midiData(fShmRtClientControl.data->midiOut);

  1672. 

  1673.             for (std::size_t read=0; read<kBridgeRtClientDataMidiOutSize;)

  1674.             {

  1675.                 size = *midiData;

  1676. 

  1677.                 if (size == 0)

  1678.                     break;

  1679. 

  1680.                 // advance 8 bits (1 byte)

  1681.                 midiData = midiData + 1;

  1682. 

  1683.                 // get time as 32bit

  1684.                 time = *(const uint32_t*)midiData;

  1685. 

  1686.                 // advance 32 bits (4 bytes)

  1687.                 midiData = midiData + 4;

  1688. 

  1689.                 // store midi data advancing as needed

  1690.                 uint8_t data[size];

  1691. 

  1692.                 for (uint8_t j=0; j<size; ++j)

  1693.                     data[j] = *midiData++;

  1694. 

  1695.                 pData->event.portOut->writeMidiEvent(time, size, data);

  1696. 

  1697.                 read += 1U /* size*/ + 4U /* time */ + size;

  1698.             }

  1699. 

  1700.         } // End of Control and MIDI Output

  1701.     }

  1702. 

  1703.     bool processSingle(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames)

  1704.     {

  1705.         CARLA_SAFE_ASSERT_RETURN(! fTimedError, false);

  1706.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1707. 

  1708.         if (pData->audioIn.count > 0)

  1709.         {

  1710.             CARLA_SAFE_ASSERT_RETURN(audioIn != nullptr, false);

  1711.         }

  1712.         if (pData->audioOut.count > 0)

  1713.         {

  1714.             CARLA_SAFE_ASSERT_RETURN(audioOut != nullptr, false);

  1715.         }

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

  1717.         {

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

  1719.         }

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

  1721.         {

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

  1723.         }

  1724. 

  1725.         // --------------------------------------------------------------------------------------------------------

  1726.         // Try lock, silence otherwise

  1727. 

  1728.         if (pData->engine->isOffline())

  1729.         {

  1730.             pData->singleMutex.lock();

  1731.         }

  1732.         else if (! pData->singleMutex.tryLock())

  1733.         {

  1734.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1735.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1736.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1737.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1738.             return false;

  1739.         }

  1740. 

  1741.         // --------------------------------------------------------------------------------------------------------

  1742.         // Reset audio buffers

  1743. 

  1744.         for (uint32_t i=0; i < fInfo.aIns; ++i)

  1745.             FloatVectorOperations::copy(fShmAudioPool.data + (i * frames), audioIn[i], static_cast<int>(frames));

  1746. 

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

  1748.         // TimeInfo

  1749. 

  1750.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1751.         BridgeTimeInfo& bridgeTimeInfo(fShmRtClientControl.data->timeInfo);

  1752. 

  1753.         bridgeTimeInfo.playing = timeInfo.playing;

  1754.         bridgeTimeInfo.frame   = timeInfo.frame;

  1755.         bridgeTimeInfo.usecs   = timeInfo.usecs;

  1756.         bridgeTimeInfo.valid   = timeInfo.valid;

  1757. 

  1758.         if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1759.         {

  1760.             bridgeTimeInfo.bar  = timeInfo.bbt.bar;

  1761.             bridgeTimeInfo.beat = timeInfo.bbt.beat;

  1762.             bridgeTimeInfo.tick = timeInfo.bbt.tick;

  1763. 

  1764.             bridgeTimeInfo.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1765.             bridgeTimeInfo.beatType    = timeInfo.bbt.beatType;

  1766. 

  1767.             bridgeTimeInfo.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1768.             bridgeTimeInfo.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1769.             bridgeTimeInfo.barStartTick   = timeInfo.bbt.barStartTick;

  1770.         }

  1771. 

  1772.         // --------------------------------------------------------------------------------------------------------

  1773.         // Run plugin

  1774. 

  1775.         {

  1776.             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientProcess);

  1777.             fShmRtClientControl.commitWrite();

  1778.         }

  1779. 

  1780.         waitForClient("process", 1);

  1781. 

  1782.         if (fTimedOut)

  1783.         {

  1784.             pData->singleMutex.unlock();

  1785.             return false;

  1786.         }

  1787. 

  1788.         for (uint32_t i=0; i < fInfo.aOuts; ++i)

  1789.             FloatVectorOperations::copy(audioOut[i], fShmAudioPool.data + ((i + fInfo.aIns) * frames), static_cast<int>(frames));

  1790. 

  1791. #ifndef BUILD_BRIDGE

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

  1793.         // Post-processing (dry/wet, volume and balance)

  1794. 

  1795.         {

  1796.             const bool doVolume  = (pData->hints & PLUGIN_CAN_VOLUME) != 0 && ! carla_compareFloats(pData->postProc.volume, 1.0f);

  1797.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && ! carla_compareFloats(pData->postProc.dryWet, 1.0f);

  1798.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_compareFloats(pData->postProc.balanceLeft, -1.0f) && carla_compareFloats(pData->postProc.balanceRight, 1.0f));

  1799. 

  1800.             bool isPair;

  1801.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1802. 

  1803.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1804.             {

  1805.                 // Dry/Wet

  1806.                 if (doDryWet)

  1807.                 {

  1808.                     for (uint32_t k=0; k < frames; ++k)

  1809.                     {

  1810.                         bufValue        = audioIn[(pData->audioIn.count == 1) ? 0 : i][k];

  1811.                         audioOut[i][k] = (audioOut[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1812.                     }

  1813.                 }

  1814. 

  1815.                 // Balance

  1816.                 if (doBalance)

  1817.                 {

  1818.                     isPair = (i % 2 == 0);

  1819. 

  1820.                     if (isPair)

  1821.                     {

  1822.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1823.                         FloatVectorOperations::copy(oldBufLeft, audioOut[i], static_cast<int>(frames));

  1824.                     }

  1825. 

  1826.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1827.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1828. 

  1829.                     for (uint32_t k=0; k < frames; ++k)

  1830.                     {

  1831.                         if (isPair)

  1832.                         {

  1833.                             // left

  1834.                             audioOut[i][k]  = oldBufLeft[k]     * (1.0f - balRangeL);

  1835.                             audioOut[i][k] += audioOut[i+1][k] * (1.0f - balRangeR);

  1836.                         }

  1837.                         else

  1838.                         {

  1839.                             // right

  1840.                             audioOut[i][k]  = audioOut[i][k] * balRangeR;

  1841.                             audioOut[i][k] += oldBufLeft[k]   * balRangeL;

  1842.                         }

  1843.                     }

  1844.                 }

  1845. 

  1846.                 // Volume (and buffer copy)

  1847.                 if (doVolume)

  1848.                 {

  1849.                     for (uint32_t k=0; k < frames; ++k)

  1850.                         audioOut[i][k] *= pData->postProc.volume;

  1851.                 }

  1852.             }

  1853. 

  1854.         } // End of Post-processing

  1855. 

  1856. #endif // BUILD_BRIDGE

  1857. 

  1858.         // --------------------------------------------------------------------------------------------------------

  1859. 

  1860.         pData->singleMutex.unlock();

  1861.         return true;

  1862.     }

  1863. 

  1864.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1865.     {

  1866.         resizeAudioPool(newBufferSize);

  1867. 

  1868.         {

  1869.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1870.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  1871.             fShmNonRtClientControl.writeUInt(newBufferSize);

  1872.             fShmNonRtClientControl.commitWrite();

  1873.         }

  1874. 

  1875.         waitForClient("buffersize", 1);

  1876.     }

  1877. 

  1878.     void sampleRateChanged(const double newSampleRate) override

  1879.     {

  1880.         {

  1881.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1882.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  1883.             fShmNonRtClientControl.writeDouble(newSampleRate);

  1884.             fShmNonRtClientControl.commitWrite();

  1885.         }

  1886. 

  1887.         waitForClient("samplerate", 1);

  1888.     }

  1889. 

  1890.     void offlineModeChanged(const bool isOffline) override

  1891.     {

  1892.         {

  1893.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1894.             fShmNonRtClientControl.writeOpcode(isOffline ? kPluginBridgeNonRtClientSetOffline : kPluginBridgeNonRtClientSetOnline);

  1895.             fShmNonRtClientControl.commitWrite();

  1896.         }

  1897. 

  1898.         waitForClient("offline", 1);

  1899.     }

  1900. 

  1901.     // -------------------------------------------------------------------

  1902.     // Plugin buffers

  1903. 

  1904.     void clearBuffers() noexcept override

  1905.     {

  1906.         if (fParams != nullptr)

  1907.         {

  1908.             delete[] fParams;

  1909.             fParams = nullptr;

  1910.         }

  1911. 

  1912.         CarlaPlugin::clearBuffers();

  1913.     }

  1914. 

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

  1916.     // Post-poned UI Stuff

  1917. 

  1918.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  1919.     {

  1920.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  1921. 

  1922.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1923. 

  1924.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiParameterChange);

  1925.         fShmNonRtClientControl.writeUInt(index);

  1926.         fShmNonRtClientControl.writeFloat(value);

  1927.         fShmNonRtClientControl.commitWrite();

  1928.     }

  1929. 

  1930.     void uiProgramChange(const uint32_t index) noexcept override

  1931.     {

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

  1933. 

  1934.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1935. 

  1936.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiProgramChange);

  1937.         fShmNonRtClientControl.writeUInt(index);

  1938.         fShmNonRtClientControl.commitWrite();

  1939.     }

  1940. 

  1941.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1942.     {

  1943.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1944. 

  1945.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1946. 

  1947.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiMidiProgramChange);

  1948.         fShmNonRtClientControl.writeUInt(index);

  1949.         fShmNonRtClientControl.commitWrite();

  1950.     }

  1951. 

  1952.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1953.     {

  1954.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1955.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1956.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  1957. 

  1958.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1959. 

  1960.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOn);

  1961.         fShmNonRtClientControl.writeByte(channel);

  1962.         fShmNonRtClientControl.writeByte(note);

  1963.         fShmNonRtClientControl.writeByte(velo);

  1964.         fShmNonRtClientControl.commitWrite();

  1965.     }

  1966. 

  1967.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  1968.     {

  1969.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1970.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1971. 

  1972.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1973. 

  1974.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOff);

  1975.         fShmNonRtClientControl.writeByte(channel);

  1976.         fShmNonRtClientControl.writeByte(note);

  1977.         fShmNonRtClientControl.commitWrite();

  1978.     }

  1979. 

  1980.     // -------------------------------------------------------------------

  1981. 

  1982.     void handleNonRtData()

  1983.     {

  1984.         for (; fShmNonRtServerControl.isDataAvailableForReading();)

  1985.         {

  1986.             const PluginBridgeNonRtServerOpcode opcode(fShmNonRtServerControl.readOpcode());

  1987. #ifdef DEBUG

  1988.             if (opcode != kPluginBridgeNonRtServerPong) {

  1989.                 carla_debug("CarlaPluginBridge::handleNonRtData() - got opcode: %s", PluginBridgeNonRtServerOpcode2str(opcode));

  1990.             }

  1991. #endif

  1992.             if (opcode != kPluginBridgeNonRtServerNull && fLastPongTime > 0)

  1993.                 fLastPongTime = Time::currentTimeMillis();

  1994. 

  1995.             switch (opcode)

  1996.             {

  1997.             case kPluginBridgeNonRtServerNull:

  1998.             case kPluginBridgeNonRtServerPong:

  1999.                 break;

  2000. 

  2001.             case kPluginBridgeNonRtServerPluginInfo1: {

  2002.                 // uint/category, uint/hints, uint/optionsAvailable, uint/optionsEnabled, long/uniqueId

  2003.                 const uint32_t category = fShmNonRtServerControl.readUInt();

  2004.                 const uint32_t hints    = fShmNonRtServerControl.readUInt();

  2005.                 const uint32_t optionAv = fShmNonRtServerControl.readUInt();

  2006.                 const uint32_t optionEn = fShmNonRtServerControl.readUInt();

  2007.                 const  int64_t uniqueId = fShmNonRtServerControl.readLong();

  2008. 

  2009.                 pData->hints   = hints | PLUGIN_IS_BRIDGE;

  2010.                 pData->options = optionEn;

  2011. 

  2012.                 fInfo.category = static_cast<PluginCategory>(category);

  2013.                 fInfo.uniqueId = uniqueId;

  2014.                 fInfo.optionsAvailable = optionAv;

  2015.             }   break;

  2016. 

  2017.             case kPluginBridgeNonRtServerPluginInfo2: {

  2018.                 // uint/size, str[] (realName), uint/size, str[] (label), uint/size, str[] (maker), uint/size, str[] (copyright)

  2019. 

  2020.                 // realName

  2021.                 const uint32_t realNameSize(fShmNonRtServerControl.readUInt());

  2022.                 char realName[realNameSize+1];

  2023.                 carla_zeroChar(realName, realNameSize+1);

  2024.                 fShmNonRtServerControl.readCustomData(realName, realNameSize);

  2025. 

  2026.                 // label

  2027.                 const uint32_t labelSize(fShmNonRtServerControl.readUInt());

  2028.                 char label[labelSize+1];

  2029.                 carla_zeroChar(label, labelSize+1);

  2030.                 fShmNonRtServerControl.readCustomData(label, labelSize);

  2031. 

  2032.                 // maker

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

  2034.                 char maker[makerSize+1];

  2035.                 carla_zeroChar(maker, makerSize+1);

  2036.                 fShmNonRtServerControl.readCustomData(maker, makerSize);

  2037. 

  2038.                 // copyright

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

  2040.                 char copyright[copyrightSize+1];

  2041.                 carla_zeroChar(copyright, copyrightSize+1);

  2042.                 fShmNonRtServerControl.readCustomData(copyright, copyrightSize);

  2043. 

  2044.                 fInfo.name  = realName;

  2045.                 fInfo.label = label;

  2046.                 fInfo.maker = maker;

  2047.                 fInfo.copyright = copyright;

  2048. 

  2049.                 if (pData->name == nullptr)

  2050.                     pData->name = pData->engine->getUniquePluginName(realName);

  2051.             }   break;

  2052. 

  2053.             case kPluginBridgeNonRtServerAudioCount: {

  2054.                 // uint/ins, uint/outs

  2055.                 fInfo.aIns  = fShmNonRtServerControl.readUInt();

  2056.                 fInfo.aOuts = fShmNonRtServerControl.readUInt();

  2057.             }   break;

  2058. 

  2059.             case kPluginBridgeNonRtServerMidiCount: {

  2060.                 // uint/ins, uint/outs

  2061.                 fInfo.mIns  = fShmNonRtServerControl.readUInt();

  2062.                 fInfo.mOuts = fShmNonRtServerControl.readUInt();

  2063.             }   break;

  2064. 

  2065.             case kPluginBridgeNonRtServerParameterCount: {

  2066.                 // uint/count

  2067.                 const uint32_t count = fShmNonRtServerControl.readUInt();

  2068. 

  2069.                 // delete old data

  2070.                 pData->param.clear();

  2071. 

  2072.                 if (fParams != nullptr)

  2073.                 {

  2074.                     delete[] fParams;

  2075.                     fParams = nullptr;

  2076.                 }

  2077. 

  2078.                 if (count > 0)

  2079.                 {

  2080.                     pData->param.createNew(count, false);

  2081.                     fParams = new BridgeParamInfo[count];

  2082. 

  2083.                     // we might not receive all parameter data, so ensure range max is not 0

  2084.                     for (uint32_t i=0; i<count; ++i)

  2085.                     {

  2086.                         pData->param.ranges[i].def = 0.0f;

  2087.                         pData->param.ranges[i].min = 0.0f;

  2088.                         pData->param.ranges[i].max = 1.0f;

  2089.                         pData->param.ranges[i].step = 0.001f;

  2090.                         pData->param.ranges[i].stepSmall = 0.0001f;

  2091.                         pData->param.ranges[i].stepLarge = 0.1f;

  2092.                     }

  2093.                 }

  2094.             }   break;

  2095. 

  2096.             case kPluginBridgeNonRtServerProgramCount: {

  2097.                 // uint/count

  2098.                 pData->prog.clear();

  2099. 

  2100.                 if (const uint32_t count = fShmNonRtServerControl.readUInt())

  2101.                     pData->prog.createNew(static_cast<uint32_t>(count));

  2102. 

  2103.             }   break;

  2104. 

  2105.             case kPluginBridgeNonRtServerMidiProgramCount: {

  2106.                 // uint/count

  2107.                 pData->midiprog.clear();

  2108. 

  2109.                 if (const uint32_t count = fShmNonRtServerControl.readUInt())

  2110.                     pData->midiprog.createNew(static_cast<uint32_t>(count));

  2111. 

  2112.             }   break;

  2113. 

  2114.             case kPluginBridgeNonRtServerParameterData1: {

  2115.                 // uint/index, int/rindex, uint/type, uint/hints, int/cc

  2116.                 const uint32_t index  = fShmNonRtServerControl.readUInt();

  2117.                 const  int32_t rindex = fShmNonRtServerControl.readInt();

  2118.                 const uint32_t type   = fShmNonRtServerControl.readUInt();

  2119.                 const uint32_t hints  = fShmNonRtServerControl.readUInt();

  2120.                 const  int16_t midiCC = fShmNonRtServerControl.readShort();

  2121. 

  2122.                 CARLA_SAFE_ASSERT_BREAK(midiCC >= -1 && midiCC < MAX_MIDI_CONTROL);

  2123.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2124. 

  2125.                 if (index < pData->param.count)

  2126.                 {

  2127.                     pData->param.data[index].type   = static_cast<ParameterType>(type);

  2128.                     pData->param.data[index].index  = static_cast<int32_t>(index);

  2129.                     pData->param.data[index].rindex = rindex;

  2130.                     pData->param.data[index].hints  = hints;

  2131.                     pData->param.data[index].midiCC = midiCC;

  2132.                 }

  2133.             }   break;

  2134. 

  2135.             case kPluginBridgeNonRtServerParameterData2: {

  2136.                 // uint/index, uint/size, str[] (name), uint/size, str[] (unit)

  2137.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2138. 

  2139.                 // name

  2140.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2141.                 char name[nameSize+1];

  2142.                 carla_zeroChar(name, nameSize+1);

  2143.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2144. 

  2145.                 // symbol

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

  2147.                 char symbol[symbolSize+1];

  2148.                 carla_zeroChar(symbol, symbolSize+1);

  2149.                 fShmNonRtServerControl.readCustomData(symbol, symbolSize);

  2150. 

  2151.                 // unit

  2152.                 const uint32_t unitSize(fShmNonRtServerControl.readUInt());

  2153.                 char unit[unitSize+1];

  2154.                 carla_zeroChar(unit, unitSize+1);

  2155.                 fShmNonRtServerControl.readCustomData(unit, unitSize);

  2156. 

  2157.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2158. 

  2159.                 if (index < pData->param.count)

  2160.                 {

  2161.                     fParams[index].name   = name;

  2162.                     fParams[index].symbol = symbol;

  2163.                     fParams[index].unit   = unit;

  2164.                 }

  2165.             }   break;

  2166. 

  2167.             case kPluginBridgeNonRtServerParameterRanges: {

  2168.                 // uint/index, float/def, float/min, float/max, float/step, float/stepSmall, float/stepLarge

  2169.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2170.                 const float def      = fShmNonRtServerControl.readFloat();

  2171.                 const float min      = fShmNonRtServerControl.readFloat();

  2172.                 const float max      = fShmNonRtServerControl.readFloat();

  2173.                 const float step      = fShmNonRtServerControl.readFloat();

  2174.                 const float stepSmall = fShmNonRtServerControl.readFloat();

  2175.                 const float stepLarge = fShmNonRtServerControl.readFloat();

  2176. 

  2177.                 CARLA_SAFE_ASSERT_BREAK(min < max);

  2178.                 CARLA_SAFE_ASSERT_BREAK(def >= min);

  2179.                 CARLA_SAFE_ASSERT_BREAK(def <= max);

  2180.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2181. 

  2182.                 if (index < pData->param.count)

  2183.                 {

  2184.                     pData->param.ranges[index].def = def;

  2185.                     pData->param.ranges[index].min = min;

  2186.                     pData->param.ranges[index].max = max;

  2187.                     pData->param.ranges[index].step      = step;

  2188.                     pData->param.ranges[index].stepSmall = stepSmall;

  2189.                     pData->param.ranges[index].stepLarge = stepLarge;

  2190.                 }

  2191.             }   break;

  2192. 

  2193.             case kPluginBridgeNonRtServerParameterValue: {

  2194.                 // uint/index, float/value

  2195.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2196.                 const float    value = fShmNonRtServerControl.readFloat();

  2197. 

  2198.                 if (index < pData->param.count)

  2199.                 {

  2200.                     const float fixedValue(pData->param.getFixedValue(index, value));

  2201.                     fParams[index].value = fixedValue;

  2202. 

  2203.                     CarlaPlugin::setParameterValue(index, fixedValue, false, true, true);

  2204.                 }

  2205.             }   break;

  2206. 

  2207.             case kPluginBridgeNonRtServerParameterValue2: {

  2208.                 // uint/index, float/value

  2209.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2210.                 const float    value = fShmNonRtServerControl.readFloat();

  2211. 

  2212.                 if (index < pData->param.count)

  2213.                 {

  2214.                     const float fixedValue(pData->param.getFixedValue(index, value));

  2215.                     fParams[index].value = fixedValue;

  2216.                 }

  2217.             }   break;

  2218. 

  2219.             case kPluginBridgeNonRtServerDefaultValue: {

  2220.                 // uint/index, float/value

  2221.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2222.                 const float    value = fShmNonRtServerControl.readFloat();

  2223. 

  2224.                 if (index < pData->param.count)

  2225.                     pData->param.ranges[index].def = value;

  2226.             }   break;

  2227. 

  2228.             case kPluginBridgeNonRtServerCurrentProgram: {

  2229.                 // int/index

  2230.                 const int32_t index = fShmNonRtServerControl.readInt();

  2231. 

  2232.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

  2233.                 CARLA_SAFE_ASSERT_INT2(index < static_cast<int32_t>(pData->prog.count), index, pData->prog.count);

  2234. 

  2235.                 CarlaPlugin::setProgram(index, false, true, true);

  2236.             }   break;

  2237. 

  2238.             case kPluginBridgeNonRtServerCurrentMidiProgram: {

  2239.                 // int/index

  2240.                 const int32_t index = fShmNonRtServerControl.readInt();

  2241. 

  2242.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

  2243.                 CARLA_SAFE_ASSERT_INT2(index < static_cast<int32_t>(pData->midiprog.count), index, pData->midiprog.count);

  2244. 

  2245.                 CarlaPlugin::setMidiProgram(index, false, true, true);

  2246.             }   break;

  2247. 

  2248.             case kPluginBridgeNonRtServerProgramName: {

  2249.                 // uint/index, uint/size, str[] (name)

  2250.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2251. 

  2252.                 // name

  2253.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2254.                 char name[nameSize+1];

  2255.                 carla_zeroChar(name, nameSize+1);

  2256.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2257. 

  2258.                 CARLA_SAFE_ASSERT_INT2(index < pData->prog.count, index, pData->prog.count);

  2259. 

  2260.                 if (index < pData->prog.count)

  2261.                 {

  2262.                     if (pData->prog.names[index] != nullptr)

  2263.                         delete[] pData->prog.names[index];

  2264.                     pData->prog.names[index] = carla_strdup(name);

  2265.                 }

  2266.             }   break;

  2267. 

  2268.             case kPluginBridgeNonRtServerMidiProgramData: {

  2269.                 // uint/index, uint/bank, uint/program, uint/size, str[] (name)

  2270.                 const uint32_t index   = fShmNonRtServerControl.readUInt();

  2271.                 const uint32_t bank    = fShmNonRtServerControl.readUInt();

  2272.                 const uint32_t program = fShmNonRtServerControl.readUInt();

  2273. 

  2274.                 // name

  2275.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2276.                 char name[nameSize+1];

  2277.                 carla_zeroChar(name, nameSize+1);

  2278.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2279. 

  2280.                 CARLA_SAFE_ASSERT_INT2(index < pData->midiprog.count, index, pData->midiprog.count);

  2281. 

  2282.                 if (index < pData->midiprog.count)

  2283.                 {

  2284.                     if (pData->midiprog.data[index].name != nullptr)

  2285.                         delete[] pData->midiprog.data[index].name;

  2286.                     pData->midiprog.data[index].bank    = bank;

  2287.                     pData->midiprog.data[index].program = program;

  2288.                     pData->midiprog.data[index].name    = carla_strdup(name);

  2289.                 }

  2290.             }   break;

  2291. 

  2292.             case kPluginBridgeNonRtServerSetCustomData: {

  2293.                 // uint/size, str[], uint/size, str[], uint/size, str[]

  2294. 

  2295.                 // type

  2296.                 const uint32_t typeSize(fShmNonRtServerControl.readUInt());

  2297.                 char type[typeSize+1];

  2298.                 carla_zeroChar(type, typeSize+1);

  2299.                 fShmNonRtServerControl.readCustomData(type, typeSize);

  2300. 

  2301.                 // key

  2302.                 const uint32_t keySize(fShmNonRtServerControl.readUInt());

  2303.                 char key[keySize+1];

  2304.                 carla_zeroChar(key, keySize+1);

  2305.                 fShmNonRtServerControl.readCustomData(key, keySize);

  2306. 

  2307.                 // value

  2308.                 const uint32_t valueSize(fShmNonRtServerControl.readUInt());

  2309.                 char value[valueSize+1];

  2310.                 carla_zeroChar(value, valueSize+1);

  2311.                 fShmNonRtServerControl.readCustomData(value, valueSize);

  2312. 

  2313.                 CarlaPlugin::setCustomData(type, key, value, false);

  2314.             }   break;

  2315. 

  2316.             case kPluginBridgeNonRtServerSetChunkDataFile: {

  2317.                 // uint/size, str[] (filename)

  2318. 

  2319.                 // chunkFilePath

  2320.                 const uint32_t chunkFilePathSize(fShmNonRtServerControl.readUInt());

  2321.                 char chunkFilePath[chunkFilePathSize+1];

  2322.                 carla_zeroChar(chunkFilePath, chunkFilePathSize+1);

  2323.                 fShmNonRtServerControl.readCustomData(chunkFilePath, chunkFilePathSize);

  2324. 

  2325.                 String realChunkFilePath(chunkFilePath);

  2326.                 carla_stdout("chunk save path BEFORE => %s", realChunkFilePath.toRawUTF8());

  2327. 

  2328. #ifndef CARLA_OS_WIN

  2329.                 // Using Wine, fix temp dir

  2330.                 if (fBinaryType == BINARY_WIN32 || fBinaryType == BINARY_WIN64)

  2331.                 {

  2332.                     // Get WINEPREFIX

  2333.                     String wineDir;

  2334.                     if (const char* const WINEPREFIX = getenv("WINEPREFIX"))

  2335.                         wineDir = String(WINEPREFIX);

  2336.                     else

  2337.                         wineDir = File::getSpecialLocation(File::userHomeDirectory).getFullPathName() + "/.wine";

  2338. 

  2339.                     const StringArray driveLetterSplit(StringArray::fromTokens(realChunkFilePath, ":/", ""));

  2340. 

  2341.                     realChunkFilePath  = wineDir;

  2342.                     realChunkFilePath += "/drive_";

  2343.                     realChunkFilePath += driveLetterSplit[0].toLowerCase();

  2344.                     realChunkFilePath += "/";

  2345.                     realChunkFilePath += driveLetterSplit[1];

  2346. 

  2347.                     realChunkFilePath  = realChunkFilePath.replace("\\", "/");

  2348.                     carla_stdout("chunk save path AFTER => %s", realChunkFilePath.toRawUTF8());

  2349.                 }

  2350. #endif

  2351. 

  2352.                 File chunkFile(realChunkFilePath);

  2353. 

  2354.                 if (chunkFile.existsAsFile())

  2355.                 {

  2356.                     fInfo.chunk = carla_getChunkFromBase64String(chunkFile.loadFileAsString().toRawUTF8());

  2357.                     chunkFile.deleteFile();

  2358.                     carla_stderr("chunk data final");

  2359.                 }

  2360.             }   break;

  2361. 

  2362.             case kPluginBridgeNonRtServerSetLatency: {

  2363.                 // uint

  2364.             }   break;

  2365. 

  2366.             case kPluginBridgeNonRtServerReady:

  2367.                 fInitiated = true;

  2368.                 break;

  2369. 

  2370.             case kPluginBridgeNonRtServerSaved:

  2371.                 fSaved = true;

  2372.                 break;

  2373. 

  2374.             case kPluginBridgeNonRtServerUiClosed:

  2375.                 pData->transientTryCounter = 0;

  2376.                 pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2377.                 break;

  2378. 

  2379.             case kPluginBridgeNonRtServerError: {

  2380.                 // error

  2381.                 const uint32_t errorSize(fShmNonRtServerControl.readUInt());

  2382.                 char error[errorSize+1];

  2383.                 carla_zeroChar(error, errorSize+1);

  2384.                 fShmNonRtServerControl.readCustomData(error, errorSize);

  2385. 

  2386.                 if (fInitiated)

  2387.                 {

  2388.                     pData->engine->callback(ENGINE_CALLBACK_ERROR, pData->id, 0, 0, 0.0f, error);

  2389. 

  2390.                     // just in case

  2391.                     pData->engine->setLastError(error);

  2392.                     fInitError = true;

  2393.                 }

  2394.                 else

  2395.                 {

  2396.                     pData->engine->setLastError(error);

  2397.                     fInitError = true;

  2398.                     fInitiated = true;

  2399.                 }

  2400.             }   break;

  2401.             }

  2402.         }

  2403.     }

  2404. 

  2405.     // -------------------------------------------------------------------

  2406. 

  2407.     uintptr_t getUiBridgeProcessId() const noexcept override

  2408.     {

  2409.         return fBridgeThread.getProcessPID();

  2410.     }

  2411. 

  2412.     const void* getExtraStuff() const noexcept override

  2413.     {

  2414.         return fBridgeBinary.isNotEmpty() ? fBridgeBinary.buffer() : nullptr;

  2415.     }

  2416. 

  2417.     // -------------------------------------------------------------------

  2418. 

  2419.     bool init(const char* const filename, const char* const name, const char* const label, const char* const bridgeBinary)

  2420.     {

  2421.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2422. 

  2423.         // ---------------------------------------------------------------

  2424.         // first checks

  2425. 

  2426.         if (pData->client != nullptr)

  2427.         {

  2428.             pData->engine->setLastError("Plugin client is already registered");

  2429.             return false;

  2430.         }

  2431. 

  2432.         if (bridgeBinary == nullptr || bridgeBinary[0] == '\0')

  2433.         {

  2434.             pData->engine->setLastError("null bridge binary");

  2435.             return false;

  2436.         }

  2437. 

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

  2439.         // set info

  2440. 

  2441.         if (name != nullptr && name[0] != '\0')

  2442.             pData->name = pData->engine->getUniquePluginName(name);

  2443. 

  2444.         if (filename != nullptr && filename[0] != '\0')

  2445.             pData->filename = carla_strdup(filename);

  2446.         else

  2447.             pData->filename = carla_strdup("");

  2448. 

  2449.         fBridgeBinary = bridgeBinary;

  2450. 

  2451.         std::srand(static_cast<uint>(std::time(nullptr)));

  2452. 

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

  2454.         // init sem/shm

  2455. 

  2456.         if (! fShmAudioPool.initialize())

  2457.         {

  2458.             carla_stdout("Failed to initialize shared memory audio pool");

  2459.             return false;

  2460.         }

  2461. 

  2462.         if (! fShmRtClientControl.initialize())

  2463.         {

  2464.             carla_stdout("Failed to initialize RT client control");

  2465.             fShmAudioPool.clear();

  2466.             return false;

  2467.         }

  2468. 

  2469.         if (! fShmNonRtClientControl.initialize())

  2470.         {

  2471.             carla_stdout("Failed to initialize Non-RT client control");

  2472.             fShmRtClientControl.clear();

  2473.             fShmAudioPool.clear();

  2474.             return false;

  2475.         }

  2476. 

  2477.         if (! fShmNonRtServerControl.initialize())

  2478.         {

  2479.             carla_stdout("Failed to initialize Non-RT server control");

  2480.             fShmNonRtClientControl.clear();

  2481.             fShmRtClientControl.clear();

  2482.             fShmAudioPool.clear();

  2483.             return false;

  2484.         }

  2485. 

  2486.         // ---------------------------------------------------------------

  2487. 

  2488.         carla_stdout("Carla Server Info:");

  2489.         carla_stdout("  sizeof(BridgeRtClientData):    " P_SIZE, sizeof(BridgeRtClientData));

  2490.         carla_stdout("  sizeof(BridgeNonRtClientData): " P_SIZE, sizeof(BridgeNonRtClientData));

  2491.         carla_stdout("  sizeof(BridgeNonRtServerData): " P_SIZE, sizeof(BridgeNonRtServerData));

  2492. 

  2493.         // initial values

  2494.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientNull);

  2495.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeRtClientData)));

  2496.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeNonRtClientData)));

  2497.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeNonRtServerData)));

  2498. 

  2499.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  2500.         fShmNonRtClientControl.writeUInt(pData->engine->getBufferSize());

  2501. 

  2502.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  2503.         fShmNonRtClientControl.writeDouble(pData->engine->getSampleRate());

  2504. 

  2505.         fShmNonRtClientControl.commitWrite();

  2506. 

  2507.         // init bridge thread

  2508.         {

  2509.             char shmIdsStr[6*4+1];

  2510.             carla_zeroChar(shmIdsStr, 6*4+1);

  2511. 

  2512.             std::strncpy(shmIdsStr+6*0, &fShmAudioPool.filename[fShmAudioPool.filename.length()-6], 6);

  2513.             std::strncpy(shmIdsStr+6*1, &fShmRtClientControl.filename[fShmRtClientControl.filename.length()-6], 6);

  2514.             std::strncpy(shmIdsStr+6*2, &fShmNonRtClientControl.filename[fShmNonRtClientControl.filename.length()-6], 6);

  2515.             std::strncpy(shmIdsStr+6*3, &fShmNonRtServerControl.filename[fShmNonRtServerControl.filename.length()-6], 6);

  2516. 

  2517.             fBridgeThread.setData(bridgeBinary, label, shmIdsStr);

  2518.             fBridgeThread.startThread();

  2519.         }

  2520. 

  2521.         fInitiated = false;

  2522.         fLastPongTime = Time::currentTimeMillis();

  2523.         CARLA_SAFE_ASSERT(fLastPongTime > 0);

  2524. 

  2525.         static bool sFirstInit = true;

  2526. 

  2527.         int64_t timeoutEnd = 5000;

  2528. 

  2529.         if (sFirstInit)

  2530.             timeoutEnd *= 2;

  2531. #ifndef CARLA_OS_WIN

  2532.          if (fBinaryType == BINARY_WIN32 || fBinaryType == BINARY_WIN64)

  2533.             timeoutEnd *= 2;

  2534. #endif

  2535.         sFirstInit = false;

  2536. 

  2537.         for (; Time::currentTimeMillis() < fLastPongTime + timeoutEnd && fBridgeThread.isThreadRunning();)

  2538.         {

  2539.             pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2540.             pData->engine->idle();

  2541.             idle();

  2542. 

  2543.             if (fInitiated)

  2544.                 break;

  2545. 

  2546.             carla_msleep(20);

  2547.         }

  2548. 

  2549.         fLastPongTime = -1;

  2550. 

  2551.         if (fInitError || ! fInitiated)

  2552.         {

  2553.             fBridgeThread.stopThread(6000);

  2554. 

  2555.             if (! fInitError)

  2556.                 pData->engine->setLastError("Timeout while waiting for a response from plugin-bridge\n(or the plugin crashed on initialization?)");

  2557. 

  2558.             return false;

  2559.         }

  2560. 

  2561.         // ---------------------------------------------------------------

  2562.         // register client

  2563. 

  2564.         if (pData->name == nullptr)

  2565.         {

  2566.             if (label != nullptr && label[0] != '\0')

  2567.                 pData->name = pData->engine->getUniquePluginName(label);

  2568.             else

  2569.                 pData->name = pData->engine->getUniquePluginName("unknown");

  2570.         }

  2571. 

  2572.         pData->client = pData->engine->addClient(this);

  2573. 

  2574.         if (pData->client == nullptr || ! pData->client->isOk())

  2575.         {

  2576.             pData->engine->setLastError("Failed to register plugin client");

  2577.             return false;

  2578.         }

  2579. 

  2580.         return true;

  2581.     }

  2582. 

  2583. private:

  2584.     const BinaryType fBinaryType;

  2585.     const PluginType fPluginType;

  2586. 

  2587.     bool fInitiated;

  2588.     bool fInitError;

  2589.     bool fSaved;

  2590.     bool fTimedOut;

  2591.     bool fTimedError;

  2592. 

  2593.     int64_t fLastPongTime;

  2594. 

  2595.     CarlaString             fBridgeBinary;

  2596.     CarlaPluginBridgeThread fBridgeThread;

  2597. 

  2598.     BridgeAudioPool          fShmAudioPool;

  2599.     BridgeRtClientControl    fShmRtClientControl;

  2600.     BridgeNonRtClientControl fShmNonRtClientControl;

  2601.     BridgeNonRtServerControl fShmNonRtServerControl;

  2602. 

  2603.     struct Info {

  2604.         uint32_t aIns, aOuts;

  2605.         uint32_t cvIns, cvOuts;

  2606.         uint32_t mIns, mOuts;

  2607.         PluginCategory category;

  2608.         uint optionsAvailable;

  2609.         int64_t uniqueId;

  2610.         CarlaString name;

  2611.         CarlaString label;

  2612.         CarlaString maker;

  2613.         CarlaString copyright;

  2614.         std::vector<uint8_t> chunk;

  2615. 

  2616.         Info()

  2617.             : aIns(0),

  2618.               aOuts(0),

  2619.               cvIns(0),

  2620.               cvOuts(0),

  2621.               mIns(0),

  2622.               mOuts(0),

  2623.               category(PLUGIN_CATEGORY_NONE),

  2624.               optionsAvailable(0),

  2625.               uniqueId(0),

  2626.               name(),

  2627.               label(),

  2628.               maker(),

  2629.               copyright(),

  2630.               chunk() {}

  2631.     } fInfo;

  2632. 

  2633.     BridgeParamInfo* fParams;

  2634. 

  2635.     void resizeAudioPool(const uint32_t bufferSize)

  2636.     {

  2637.         fShmAudioPool.resize(bufferSize, fInfo.aIns+fInfo.aOuts, fInfo.cvIns+fInfo.cvOuts);

  2638. 

  2639.         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientSetAudioPool);

  2640.         fShmRtClientControl.writeULong(static_cast<uint64_t>(fShmAudioPool.size));

  2641. 

  2642.         fShmRtClientControl.commitWrite();

  2643. 

  2644.         waitForClient("resize-pool");

  2645.     }

  2646. 

  2647.     void waitForClient(const char* const action, const uint secs = 5)

  2648.     {

  2649.         CARLA_SAFE_ASSERT_RETURN(! fTimedOut,);

  2650.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  2651. 

  2652.         if (fShmRtClientControl.waitForClient(secs, &fTimedOut))

  2653.             return;

  2654. 

  2655.         if (fTimedOut)

  2656.         {

  2657.             carla_stderr("waitForClient(%s) timeout here", action);

  2658.         }

  2659.         else

  2660.         {

  2661.             fTimedError = true;

  2662.             carla_stderr("waitForClient(%s) error while waiting", action);

  2663.         }

  2664.     }

  2665. 

  2666.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginBridge)

  2667. };

  2668. 

  2669. CARLA_BACKEND_END_NAMESPACE

  2670. 

  2671. // -------------------------------------------------------------------------------------------------------------------

  2672. 

  2673. CARLA_BACKEND_START_NAMESPACE

  2674. 

  2675. CarlaPlugin* CarlaPlugin::newBridge(const Initializer& init, BinaryType btype, PluginType ptype, const char* const bridgeBinary)

  2676. {

  2677.     carla_debug("CarlaPlugin::newBridge({%p, \"%s\", \"%s\", \"%s\"}, %s, %s, \"%s\")", init.engine, init.filename, init.name, init.label, BinaryType2Str(btype), PluginType2Str(ptype), bridgeBinary);

  2678. 

  2679.     if (bridgeBinary == nullptr || bridgeBinary[0] == '\0')

  2680.     {

  2681.         init.engine->setLastError("Bridge not possible, bridge-binary not found");

  2682.         return nullptr;

  2683.     }

  2684. 

  2685.     CarlaPluginBridge* const plugin(new CarlaPluginBridge(init.engine, init.id, btype, ptype));

  2686. 

  2687.     if (! plugin->init(init.filename, init.name, init.label, bridgeBinary))

  2688.     {

  2689.         delete plugin;

  2690.         return nullptr;

  2691.     }

  2692. 

  2693.     plugin->reload();

  2694. 

  2695.     bool canRun = true;

  2696. 

  2697.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK)

  2698.     {

  2699.         if (! plugin->canRunInRack())

  2700.         {

  2701.             init.engine->setLastError("Carla's rack mode can only work with Stereo Bridged plugins, sorry!");

  2702.             canRun = false;

  2703.         }

  2704.         else if (plugin->getCVInCount() > 0 || plugin->getCVInCount() > 0)

  2705.         {

  2706.             init.engine->setLastError("Carla's rack mode cannot work with plugins that have CV ports, sorry!");

  2707.             canRun = false;

  2708.         }

  2709.     }

  2710.     else if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_PATCHBAY && (plugin->getCVInCount() > 0 || plugin->getCVInCount() > 0))

  2711.     {

  2712.         init.engine->setLastError("CV ports in patchbay mode is still TODO");

  2713.         canRun = false;

  2714.     }

  2715. 

  2716.     if (! canRun)

  2717.     {

  2718.         delete plugin;

  2719.         return nullptr;

  2720.     }

  2721. 

  2722.     return plugin;

  2723. }

  2724. 

  2725. CARLA_BACKEND_END_NAMESPACE

  2726. 

  2727. // -------------------------------------------------------------------------------------------------------------------