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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_STRING) == 0 && std::strcmp(key, "__CarlaPingOnOff__") == 0)

  1084.         {

  1085.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1086. 

  1087.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPingOnOff);

  1088.             fShmNonRtClientControl.writeBool(std::strcmp(value, "true") == 0);

  1089.             fShmNonRtClientControl.commitWrite();

  1090. 

  1091.             carla_stdout("Carla bridge server side, OnOff ping checks => %s", value);

  1092.             return;

  1093.         }

  1094. 

  1095.         const uint32_t typeLen(static_cast<uint32_t>(std::strlen(type)));

  1096.         const uint32_t keyLen(static_cast<uint32_t>(std::strlen(key)));

  1097.         const uint32_t valueLen(static_cast<uint32_t>(std::strlen(value)));

  1098. 

  1099.         {

  1100.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1101. 

  1102.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetCustomData);

  1103. 

  1104.             fShmNonRtClientControl.writeUInt(typeLen);

  1105.             fShmNonRtClientControl.writeCustomData(type, typeLen);

  1106. 

  1107.             fShmNonRtClientControl.writeUInt(keyLen);

  1108.             fShmNonRtClientControl.writeCustomData(key, keyLen);

  1109. 

  1110.             fShmNonRtClientControl.writeUInt(valueLen);

  1111.             fShmNonRtClientControl.writeCustomData(value, valueLen);

  1112. 

  1113.             fShmNonRtClientControl.commitWrite();

  1114.         }

  1115. 

  1116.         CarlaPlugin::setCustomData(type, key, value, sendGui);

  1117.     }

  1118. 

  1119.     void setChunkData(const void* const data, const std::size_t dataSize) override

  1120.     {

  1121.         CARLA_SAFE_ASSERT_RETURN(pData->options & PLUGIN_OPTION_USE_CHUNKS,);

  1122.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  1123.         CARLA_SAFE_ASSERT_RETURN(dataSize > 0,);

  1124. 

  1125.         carla_stdout("Carla bridge server side, setChunkData 001");

  1126. 

  1127.         CarlaString dataBase64(CarlaString::asBase64(data, dataSize));

  1128.         CARLA_SAFE_ASSERT_RETURN(dataBase64.length() > 0,);

  1129. 

  1130.         String filePath(File::getSpecialLocation(File::tempDirectory).getFullPathName());

  1131. 

  1132.         filePath += CARLA_OS_SEP_STR ".CarlaChunk_";

  1133.         filePath += fShmAudioPool.filename.buffer() + 18;

  1134. 

  1135.         if (File(filePath).replaceWithText(dataBase64.buffer()))

  1136.         {

  1137.             carla_stdout("Carla bridge server side, setChunkData 002");

  1138. 

  1139.             const uint32_t ulength(static_cast<uint32_t>(filePath.length()));

  1140. 

  1141.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1142. 

  1143.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetChunkDataFile);

  1144.             fShmNonRtClientControl.writeUInt(ulength);

  1145.             fShmNonRtClientControl.writeCustomData(filePath.toRawUTF8(), ulength);

  1146.             fShmNonRtClientControl.commitWrite();

  1147. 

  1148.             carla_stdout("Carla bridge server side, setChunkData sent");

  1149.         }

  1150. 

  1151.         // save data internally as well

  1152.         fInfo.chunk.resize(dataSize);

  1153.         std::memcpy(fInfo.chunk.data(), data, dataSize);

  1154. 

  1155.         carla_stdout("Carla bridge server side, setChunkData saved locally too");

  1156.     }

  1157. 

  1158.     // -------------------------------------------------------------------

  1159.     // Set ui stuff

  1160. 

  1161.     void showCustomUI(const bool yesNo) override

  1162.     {

  1163.         {

  1164.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1165. 

  1166.             fShmNonRtClientControl.writeOpcode(yesNo ? kPluginBridgeNonRtClientShowUI : kPluginBridgeNonRtClientHideUI);

  1167.             fShmNonRtClientControl.commitWrite();

  1168.         }

  1169. 

  1170. #ifndef BUILD_BRIDGE

  1171.         if (yesNo)

  1172.         {

  1173.             pData->tryTransient();

  1174.         }

  1175.         else

  1176.         {

  1177.             pData->transientTryCounter = 0;

  1178.         }

  1179. #endif

  1180.     }

  1181. 

  1182.     void idle() override

  1183.     {

  1184.         if (fBridgeThread.isThreadRunning())

  1185.         {

  1186.             if (fInitiated && fTimedOut && pData->active)

  1187.                 setActive(false, true, true);

  1188. 

  1189.             {

  1190.                 const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1191. 

  1192.                 fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPing);

  1193.                 fShmNonRtClientControl.commitWrite();

  1194.             }

  1195. 

  1196.             try {

  1197.                 handleNonRtData();

  1198.             } CARLA_SAFE_EXCEPTION("handleNonRtData");

  1199.         }

  1200.         else if (fInitiated)

  1201.         {

  1202.             fTimedOut   = true;

  1203.             fTimedError = true;

  1204.             fInitiated  = false;

  1205.             pData->engine->callback(ENGINE_CALLBACK_PLUGIN_UNAVAILABLE, pData->id, 0, 0, 0.0f, "plugin bridge has been stopped or crashed");

  1206.         }

  1207. 

  1208.         CarlaPlugin::idle();

  1209.     }

  1210. 

  1211.     // -------------------------------------------------------------------

  1212.     // Plugin state

  1213. 

  1214.     void reload() override

  1215.     {

  1216.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr,);

  1217.         carla_debug("CarlaPluginBridge::reload() - start");

  1218. 

  1219.         const EngineProcessMode processMode(pData->engine->getProccessMode());

  1220. 

  1221.         // Safely disable plugin for reload

  1222.         const ScopedDisabler sd(this);

  1223. 

  1224.         bool needsCtrlIn, needsCtrlOut;

  1225.         needsCtrlIn = needsCtrlOut = false;

  1226. 

  1227.         if (fInfo.aIns > 0)

  1228.         {

  1229.             pData->audioIn.createNew(fInfo.aIns);

  1230.         }

  1231. 

  1232.         if (fInfo.aOuts > 0)

  1233.         {

  1234.             pData->audioOut.createNew(fInfo.aOuts);

  1235.             needsCtrlIn = true;

  1236.         }

  1237. 

  1238.         if (fInfo.cvIns > 0)

  1239.         {

  1240.             pData->cvIn.createNew(fInfo.cvIns);

  1241.         }

  1242. 

  1243.         if (fInfo.cvOuts > 0)

  1244.         {

  1245.             pData->cvOut.createNew(fInfo.cvOuts);

  1246.         }

  1247. 

  1248.         if (fInfo.mIns > 0)

  1249.             needsCtrlIn = true;

  1250. 

  1251.         if (fInfo.mOuts > 0)

  1252.             needsCtrlOut = true;

  1253. 

  1254.         const uint portNameSize(pData->engine->getMaxPortNameSize());

  1255.         CarlaString portName;

  1256. 

  1257.         // Audio Ins

  1258.         for (uint32_t j=0; j < fInfo.aIns; ++j)

  1259.         {

  1260.             portName.clear();

  1261. 

  1262.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1263.             {

  1264.                 portName  = pData->name;

  1265.                 portName += ":";

  1266.             }

  1267. 

  1268.             if (fInfo.aIns > 1)

  1269.             {

  1270.                 portName += "input_";

  1271.                 portName += CarlaString(j+1);

  1272.             }

  1273.             else

  1274.                 portName += "input";

  1275. 

  1276.             portName.truncate(portNameSize);

  1277. 

  1278.             pData->audioIn.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true);

  1279.             pData->audioIn.ports[j].rindex = j;

  1280.         }

  1281. 

  1282.         // Audio Outs

  1283.         for (uint32_t j=0; j < fInfo.aOuts; ++j)

  1284.         {

  1285.             portName.clear();

  1286. 

  1287.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1288.             {

  1289.                 portName  = pData->name;

  1290.                 portName += ":";

  1291.             }

  1292. 

  1293.             if (fInfo.aOuts > 1)

  1294.             {

  1295.                 portName += "output_";

  1296.                 portName += CarlaString(j+1);

  1297.             }

  1298.             else

  1299.                 portName += "output";

  1300. 

  1301.             portName.truncate(portNameSize);

  1302. 

  1303.             pData->audioOut.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false);

  1304.             pData->audioOut.ports[j].rindex = j;

  1305.         }

  1306. 

  1307.         // TODO - CV

  1308. 

  1309.         if (needsCtrlIn)

  1310.         {

  1311.             portName.clear();

  1312. 

  1313.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1314.             {

  1315.                 portName  = pData->name;

  1316.                 portName += ":";

  1317.             }

  1318. 

  1319.             portName += "event-in";

  1320.             portName.truncate(portNameSize);

  1321. 

  1322.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  1323.         }

  1324. 

  1325.         if (needsCtrlOut)

  1326.         {

  1327.             portName.clear();

  1328. 

  1329.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1330.             {

  1331.                 portName  = pData->name;

  1332.                 portName += ":";

  1333.             }

  1334. 

  1335.             portName += "event-out";

  1336.             portName.truncate(portNameSize);

  1337. 

  1338.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  1339.         }

  1340. 

  1341.         // extra plugin hints

  1342.         pData->extraHints = 0x0;

  1343. 

  1344.         if (fInfo.mIns > 0)

  1345.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  1346. 

  1347.         if (fInfo.mOuts > 0)

  1348.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_OUT;

  1349. 

  1350.         if (fInfo.aIns <= 2 && fInfo.aOuts <= 2 && (fInfo.aIns == fInfo.aOuts || fInfo.aIns == 0 || fInfo.aOuts == 0))

  1351.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1352. 

  1353.         bufferSizeChanged(pData->engine->getBufferSize());

  1354.         reloadPrograms(true);

  1355. 

  1356.         carla_debug("CarlaPluginBridge::reload() - end");

  1357.     }

  1358. 

  1359.     // -------------------------------------------------------------------

  1360.     // Plugin processing

  1361. 

  1362.     void activate() noexcept override

  1363.     {

  1364.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  1365. 

  1366.         {

  1367.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1368. 

  1369.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientActivate);

  1370.             fShmNonRtClientControl.commitWrite();

  1371.         }

  1372. 

  1373.         fTimedOut = false;

  1374. 

  1375.         try {

  1376.             waitForClient("activate", 2);

  1377.         } CARLA_SAFE_EXCEPTION("activate - waitForClient");

  1378.     }

  1379. 

  1380.     void deactivate() noexcept override

  1381.     {

  1382.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  1383. 

  1384.         {

  1385.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1386. 

  1387.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientDeactivate);

  1388.             fShmNonRtClientControl.commitWrite();

  1389.         }

  1390. 

  1391.         fTimedOut = false;

  1392. 

  1393.         try {

  1394.             waitForClient("deactivate", 2);

  1395.         } CARLA_SAFE_EXCEPTION("deactivate - waitForClient");

  1396.     }

  1397. 

  1398.     void process(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames) override

  1399.     {

  1400.         // --------------------------------------------------------------------------------------------------------

  1401.         // Check if active

  1402. 

  1403.         if (fTimedOut || fTimedError || ! pData->active)

  1404.         {

  1405.             // disable any output sound

  1406.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1407.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1408.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1409.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1410.             return;

  1411.         }

  1412. 

  1413.         // --------------------------------------------------------------------------------------------------------

  1414.         // Check if needs reset

  1415. 

  1416.         if (pData->needsReset)

  1417.         {

  1418.             // TODO

  1419. 

  1420.             pData->needsReset = false;

  1421.         }

  1422. 

  1423.         // --------------------------------------------------------------------------------------------------------

  1424.         // Event Input

  1425. 

  1426.         if (pData->event.portIn != nullptr)

  1427.         {

  1428.             // ----------------------------------------------------------------------------------------------------

  1429.             // MIDI Input (External)

  1430. 

  1431.             if (pData->extNotes.mutex.tryLock())

  1432.             {

  1433.                 for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin(); it.valid(); it.next())

  1434.                 {

  1435.                     const ExternalMidiNote& note(it.getValue());

  1436. 

  1437.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1438. 

  1439.                     uint8_t data1, data2, data3;

  1440.                     data1 = uint8_t((note.velo > 0 ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF) | (note.channel & MIDI_CHANNEL_BIT));

  1441.                     data2 = note.note;

  1442.                     data3 = note.velo;

  1443. 

  1444.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1445.                     fShmRtClientControl.writeUInt(0); // time

  1446.                     fShmRtClientControl.writeByte(0); // port

  1447.                     fShmRtClientControl.writeByte(3); // size

  1448.                     fShmRtClientControl.writeByte(data1);

  1449.                     fShmRtClientControl.writeByte(data2);

  1450.                     fShmRtClientControl.writeByte(data3);

  1451.                     fShmRtClientControl.commitWrite();

  1452.                 }

  1453. 

  1454.                 pData->extNotes.data.clear();

  1455.                 pData->extNotes.mutex.unlock();

  1456. 

  1457.             } // End of MIDI Input (External)

  1458. 

  1459.             // ----------------------------------------------------------------------------------------------------

  1460.             // Event Input (System)

  1461. 

  1462. #ifndef BUILD_BRIDGE

  1463.             bool allNotesOffSent = false;

  1464. #endif

  1465. 

  1466.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1467.             {

  1468.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1469. 

  1470.                 // Control change

  1471.                 switch (event.type)

  1472.                 {

  1473.                 case kEngineEventTypeNull:

  1474.                     break;

  1475. 

  1476.                 case kEngineEventTypeControl: {

  1477.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1478. 

  1479.                     switch (ctrlEvent.type)

  1480.                     {

  1481.                     case kEngineControlEventTypeNull:

  1482.                         break;

  1483. 

  1484.                     case kEngineControlEventTypeParameter:

  1485. #ifndef BUILD_BRIDGE

  1486.                         // Control backend stuff

  1487.                         if (event.channel == pData->ctrlChannel)

  1488.                         {

  1489.                             float value;

  1490. 

  1491.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1492.                             {

  1493.                                 value = ctrlEvent.value;

  1494.                                 setDryWet(value, false, false);

  1495.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1496.                                 break;

  1497.                             }

  1498. 

  1499.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1500.                             {

  1501.                                 value = ctrlEvent.value*127.0f/100.0f;

  1502.                                 setVolume(value, false, false);

  1503.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1504.                                 break;

  1505.                             }

  1506. 

  1507.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1508.                             {

  1509.                                 float left, right;

  1510.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1511. 

  1512.                                 if (value < 0.0f)

  1513.                                 {

  1514.                                     left  = -1.0f;

  1515.                                     right = (value*2.0f)+1.0f;

  1516.                                 }

  1517.                                 else if (value > 0.0f)

  1518.                                 {

  1519.                                     left  = (value*2.0f)-1.0f;

  1520.                                     right = 1.0f;

  1521.                                 }

  1522.                                 else

  1523.                                 {

  1524.                                     left  = -1.0f;

  1525.                                     right = 1.0f;

  1526.                                 }

  1527. 

  1528.                                 setBalanceLeft(left, false, false);

  1529.                                 setBalanceRight(right, false, false);

  1530.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1531.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1532.                                 break;

  1533.                             }

  1534.                         }

  1535. #endif

  1536.                         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventParameter);

  1537.                         fShmRtClientControl.writeUInt(event.time);

  1538.                         fShmRtClientControl.writeByte(event.channel);

  1539.                         fShmRtClientControl.writeUShort(event.ctrl.param);

  1540.                         fShmRtClientControl.writeFloat(event.ctrl.value);

  1541.                         fShmRtClientControl.commitWrite();

  1542.                         break;

  1543. 

  1544.                     case kEngineControlEventTypeMidiBank:

  1545.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1546.                         {

  1547.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiBank);

  1548.                             fShmRtClientControl.writeUInt(event.time);

  1549.                             fShmRtClientControl.writeByte(event.channel);

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

  1551.                             fShmRtClientControl.commitWrite();

  1552.                         }

  1553.                         break;

  1554. 

  1555.                     case kEngineControlEventTypeMidiProgram:

  1556.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1557.                         {

  1558.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiProgram);

  1559.                             fShmRtClientControl.writeUInt(event.time);

  1560.                             fShmRtClientControl.writeByte(event.channel);

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

  1562.                             fShmRtClientControl.commitWrite();

  1563.                         }

  1564.                         break;

  1565. 

  1566.                     case kEngineControlEventTypeAllSoundOff:

  1567.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1568.                         {

  1569.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllSoundOff);

  1570.                             fShmRtClientControl.writeUInt(event.time);

  1571.                             fShmRtClientControl.writeByte(event.channel);

  1572.                             fShmRtClientControl.commitWrite();

  1573.                         }

  1574.                         break;

  1575. 

  1576.                     case kEngineControlEventTypeAllNotesOff:

  1577.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1578.                         {

  1579. #ifndef BUILD_BRIDGE

  1580.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1581.                             {

  1582.                                 allNotesOffSent = true;

  1583.                                 sendMidiAllNotesOffToCallback();

  1584.                             }

  1585. #endif

  1586. 

  1587.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllNotesOff);

  1588.                             fShmRtClientControl.writeUInt(event.time);

  1589.                             fShmRtClientControl.writeByte(event.channel);

  1590.                             fShmRtClientControl.commitWrite();

  1591.                         }

  1592.                         break;

  1593.                     } // switch (ctrlEvent.type)

  1594.                     break;

  1595.                 } // case kEngineEventTypeControl

  1596. 

  1597.                 case kEngineEventTypeMidi: {

  1598.                     const EngineMidiEvent& midiEvent(event.midi);

  1599. 

  1600.                     if (midiEvent.size == 0 || midiEvent.size >= MAX_MIDI_VALUE)

  1601.                         continue;

  1602. 

  1603.                     const uint8_t* const midiData(midiEvent.size > EngineMidiEvent::kDataSize ? midiEvent.dataExt : midiEvent.data);

  1604. 

  1605.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiData));

  1606. 

  1607.                     if (status == MIDI_STATUS_CHANNEL_PRESSURE && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1608.                         continue;

  1609.                     if (status == MIDI_STATUS_CONTROL_CHANGE && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1610.                         continue;

  1611.                     if (status == MIDI_STATUS_POLYPHONIC_AFTERTOUCH && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1612.                         continue;

  1613.                     if (status == MIDI_STATUS_PITCH_WHEEL_CONTROL && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1614.                         continue;

  1615. 

  1616.                     // Fix bad note-off

  1617.                     if (status == MIDI_STATUS_NOTE_ON && midiData[2] == 0)

  1618.                         status = MIDI_STATUS_NOTE_OFF;

  1619. 

  1620.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1621.                     fShmRtClientControl.writeUInt(event.time);

  1622.                     fShmRtClientControl.writeByte(midiEvent.port);

  1623.                     fShmRtClientControl.writeByte(midiEvent.size);

  1624. 

  1625.                     fShmRtClientControl.writeByte(uint8_t(midiData[0] | (event.channel & MIDI_CHANNEL_BIT)));

  1626. 

  1627.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1628.                         fShmRtClientControl.writeByte(midiData[j]);

  1629. 

  1630.                     fShmRtClientControl.commitWrite();

  1631. 

  1632.                     if (status == MIDI_STATUS_NOTE_ON)

  1633.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, midiData[1], midiData[2]);

  1634.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1635.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, midiData[1], 0.0f);

  1636.                 } break;

  1637.                 }

  1638.             }

  1639. 

  1640.             pData->postRtEvents.trySplice();

  1641. 

  1642.         } // End of Event Input

  1643. 

  1644.         if (! processSingle(audioIn, audioOut, cvIn, cvOut, frames))

  1645.             return;

  1646. 

  1647.         // --------------------------------------------------------------------------------------------------------

  1648.         // Control and MIDI Output

  1649. 

  1650.         if (pData->event.portOut != nullptr)

  1651.         {

  1652.             float value;

  1653. 

  1654.             for (uint32_t k=0; k < pData->param.count; ++k)

  1655.             {

  1656.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1657.                     continue;

  1658. 

  1659.                 if (pData->param.data[k].midiCC > 0)

  1660.                 {

  1661.                     value = pData->param.ranges[k].getNormalizedValue(fParams[k].value);

  1662.                     pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), value);

  1663.                 }

  1664.             }

  1665. 

  1666.             uint8_t size;

  1667.             uint32_t time;

  1668.             const uint8_t* midiData(fShmRtClientControl.data->midiOut);

  1669. 

  1670.             for (std::size_t read=0; read<kBridgeRtClientDataMidiOutSize;)

  1671.             {

  1672.                 size = *midiData;

  1673. 

  1674.                 if (size == 0)

  1675.                     break;

  1676. 

  1677.                 // advance 8 bits (1 byte)

  1678.                 midiData = midiData + 1;

  1679. 

  1680.                 // get time as 32bit

  1681.                 time = *(const uint32_t*)midiData;

  1682. 

  1683.                 // advance 32 bits (4 bytes)

  1684.                 midiData = midiData + 4;

  1685. 

  1686.                 // store midi data advancing as needed

  1687.                 uint8_t data[size];

  1688. 

  1689.                 for (uint8_t j=0; j<size; ++j)

  1690.                     data[j] = *midiData++;

  1691. 

  1692.                 pData->event.portOut->writeMidiEvent(time, size, data);

  1693. 

  1694.                 read += 1U /* size*/ + 4U /* time */ + size;

  1695.             }

  1696. 

  1697.         } // End of Control and MIDI Output

  1698.     }

  1699. 

  1700.     bool processSingle(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames)

  1701.     {

  1702.         CARLA_SAFE_ASSERT_RETURN(! fTimedError, false);

  1703.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1704. 

  1705.         if (pData->audioIn.count > 0)

  1706.         {

  1707.             CARLA_SAFE_ASSERT_RETURN(audioIn != nullptr, false);

  1708.         }

  1709.         if (pData->audioOut.count > 0)

  1710.         {

  1711.             CARLA_SAFE_ASSERT_RETURN(audioOut != nullptr, false);

  1712.         }

  1713.         if (pData->cvIn.count > 0)

  1714.         {

  1715.             CARLA_SAFE_ASSERT_RETURN(cvIn != nullptr, false);

  1716.         }

  1717.         if (pData->cvOut.count > 0)

  1718.         {

  1719.             CARLA_SAFE_ASSERT_RETURN(cvOut != nullptr, false);

  1720.         }

  1721. 

  1722.         // --------------------------------------------------------------------------------------------------------

  1723.         // Try lock, silence otherwise

  1724. 

  1725.         if (pData->engine->isOffline())

  1726.         {

  1727.             pData->singleMutex.lock();

  1728.         }

  1729.         else if (! pData->singleMutex.tryLock())

  1730.         {

  1731.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1732.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1733.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1734.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1735.             return false;

  1736.         }

  1737. 

  1738.         // --------------------------------------------------------------------------------------------------------

  1739.         // Reset audio buffers

  1740. 

  1741.         for (uint32_t i=0; i < fInfo.aIns; ++i)

  1742.             FloatVectorOperations::copy(fShmAudioPool.data + (i * frames), audioIn[i], static_cast<int>(frames));

  1743. 

  1744.         // --------------------------------------------------------------------------------------------------------

  1745.         // TimeInfo

  1746. 

  1747.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1748.         BridgeTimeInfo& bridgeTimeInfo(fShmRtClientControl.data->timeInfo);

  1749. 

  1750.         bridgeTimeInfo.playing = timeInfo.playing;

  1751.         bridgeTimeInfo.frame   = timeInfo.frame;

  1752.         bridgeTimeInfo.usecs   = timeInfo.usecs;

  1753.         bridgeTimeInfo.valid   = timeInfo.valid;

  1754. 

  1755.         if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1756.         {

  1757.             bridgeTimeInfo.bar  = timeInfo.bbt.bar;

  1758.             bridgeTimeInfo.beat = timeInfo.bbt.beat;

  1759.             bridgeTimeInfo.tick = timeInfo.bbt.tick;

  1760. 

  1761.             bridgeTimeInfo.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1762.             bridgeTimeInfo.beatType    = timeInfo.bbt.beatType;

  1763. 

  1764.             bridgeTimeInfo.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1765.             bridgeTimeInfo.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1766.             bridgeTimeInfo.barStartTick   = timeInfo.bbt.barStartTick;

  1767.         }

  1768. 

  1769.         // --------------------------------------------------------------------------------------------------------

  1770.         // Run plugin

  1771. 

  1772.         {

  1773.             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientProcess);

  1774.             fShmRtClientControl.commitWrite();

  1775.         }

  1776. 

  1777.         waitForClient("process", 1);

  1778. 

  1779.         if (fTimedOut)

  1780.         {

  1781.             pData->singleMutex.unlock();

  1782.             return false;

  1783.         }

  1784. 

  1785.         for (uint32_t i=0; i < fInfo.aOuts; ++i)

  1786.             FloatVectorOperations::copy(audioOut[i], fShmAudioPool.data + ((i + fInfo.aIns) * frames), static_cast<int>(frames));

  1787. 

  1788. #ifndef BUILD_BRIDGE

  1789.         // --------------------------------------------------------------------------------------------------------

  1790.         // Post-processing (dry/wet, volume and balance)

  1791. 

  1792.         {

  1793.             const bool doVolume  = (pData->hints & PLUGIN_CAN_VOLUME) != 0 && ! carla_compareFloats(pData->postProc.volume, 1.0f);

  1794.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && ! carla_compareFloats(pData->postProc.dryWet, 1.0f);

  1795.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_compareFloats(pData->postProc.balanceLeft, -1.0f) && carla_compareFloats(pData->postProc.balanceRight, 1.0f));

  1796. 

  1797.             bool isPair;

  1798.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1799. 

  1800.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1801.             {

  1802.                 // Dry/Wet

  1803.                 if (doDryWet)

  1804.                 {

  1805.                     for (uint32_t k=0; k < frames; ++k)

  1806.                     {

  1807.                         bufValue        = audioIn[(pData->audioIn.count == 1) ? 0 : i][k];

  1808.                         audioOut[i][k] = (audioOut[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1809.                     }

  1810.                 }

  1811. 

  1812.                 // Balance

  1813.                 if (doBalance)

  1814.                 {

  1815.                     isPair = (i % 2 == 0);

  1816. 

  1817.                     if (isPair)

  1818.                     {

  1819.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1820.                         FloatVectorOperations::copy(oldBufLeft, audioOut[i], static_cast<int>(frames));

  1821.                     }

  1822. 

  1823.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1824.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1825. 

  1826.                     for (uint32_t k=0; k < frames; ++k)

  1827.                     {

  1828.                         if (isPair)

  1829.                         {

  1830.                             // left

  1831.                             audioOut[i][k]  = oldBufLeft[k]     * (1.0f - balRangeL);

  1832.                             audioOut[i][k] += audioOut[i+1][k] * (1.0f - balRangeR);

  1833.                         }

  1834.                         else

  1835.                         {

  1836.                             // right

  1837.                             audioOut[i][k]  = audioOut[i][k] * balRangeR;

  1838.                             audioOut[i][k] += oldBufLeft[k]   * balRangeL;

  1839.                         }

  1840.                     }

  1841.                 }

  1842. 

  1843.                 // Volume (and buffer copy)

  1844.                 if (doVolume)

  1845.                 {

  1846.                     for (uint32_t k=0; k < frames; ++k)

  1847.                         audioOut[i][k] *= pData->postProc.volume;

  1848.                 }

  1849.             }

  1850. 

  1851.         } // End of Post-processing

  1852. 

  1853. #endif // BUILD_BRIDGE

  1854. 

  1855.         // --------------------------------------------------------------------------------------------------------

  1856. 

  1857.         pData->singleMutex.unlock();

  1858.         return true;

  1859.     }

  1860. 

  1861.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1862.     {

  1863.         resizeAudioPool(newBufferSize);

  1864. 

  1865.         {

  1866.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1867.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  1868.             fShmNonRtClientControl.writeUInt(newBufferSize);

  1869.             fShmNonRtClientControl.commitWrite();

  1870.         }

  1871. 

  1872.         waitForClient("buffersize", 1);

  1873.     }

  1874. 

  1875.     void sampleRateChanged(const double newSampleRate) override

  1876.     {

  1877.         {

  1878.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1879.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  1880.             fShmNonRtClientControl.writeDouble(newSampleRate);

  1881.             fShmNonRtClientControl.commitWrite();

  1882.         }

  1883. 

  1884.         waitForClient("samplerate", 1);

  1885.     }

  1886. 

  1887.     void offlineModeChanged(const bool isOffline) override

  1888.     {

  1889.         {

  1890.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1891.             fShmNonRtClientControl.writeOpcode(isOffline ? kPluginBridgeNonRtClientSetOffline : kPluginBridgeNonRtClientSetOnline);

  1892.             fShmNonRtClientControl.commitWrite();

  1893.         }

  1894. 

  1895.         waitForClient("offline", 1);

  1896.     }

  1897. 

  1898.     // -------------------------------------------------------------------

  1899.     // Plugin buffers

  1900. 

  1901.     void clearBuffers() noexcept override

  1902.     {

  1903.         if (fParams != nullptr)

  1904.         {

  1905.             delete[] fParams;

  1906.             fParams = nullptr;

  1907.         }

  1908. 

  1909.         CarlaPlugin::clearBuffers();

  1910.     }

  1911. 

  1912.     // -------------------------------------------------------------------

  1913.     // Post-poned UI Stuff

  1914. 

  1915.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  1916.     {

  1917.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  1918. 

  1919.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1920. 

  1921.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiParameterChange);

  1922.         fShmNonRtClientControl.writeUInt(index);

  1923.         fShmNonRtClientControl.writeFloat(value);

  1924.         fShmNonRtClientControl.commitWrite();

  1925.     }

  1926. 

  1927.     void uiProgramChange(const uint32_t index) noexcept override

  1928.     {

  1929.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1930. 

  1931.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1932. 

  1933.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiProgramChange);

  1934.         fShmNonRtClientControl.writeUInt(index);

  1935.         fShmNonRtClientControl.commitWrite();

  1936.     }

  1937. 

  1938.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1939.     {

  1940.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1941. 

  1942.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1943. 

  1944.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiMidiProgramChange);

  1945.         fShmNonRtClientControl.writeUInt(index);

  1946.         fShmNonRtClientControl.commitWrite();

  1947.     }

  1948. 

  1949.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1950.     {

  1951.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1952.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1953.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  1954. 

  1955.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1956. 

  1957.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOn);

  1958.         fShmNonRtClientControl.writeByte(channel);

  1959.         fShmNonRtClientControl.writeByte(note);

  1960.         fShmNonRtClientControl.writeByte(velo);

  1961.         fShmNonRtClientControl.commitWrite();

  1962.     }

  1963. 

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

  1965.     {

  1966.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1967.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1968. 

  1969.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1970. 

  1971.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOff);

  1972.         fShmNonRtClientControl.writeByte(channel);

  1973.         fShmNonRtClientControl.writeByte(note);

  1974.         fShmNonRtClientControl.commitWrite();

  1975.     }

  1976. 

  1977.     // -------------------------------------------------------------------

  1978. 

  1979.     void handleNonRtData()

  1980.     {

  1981.         for (; fShmNonRtServerControl.isDataAvailableForReading();)

  1982.         {

  1983.             const PluginBridgeNonRtServerOpcode opcode(fShmNonRtServerControl.readOpcode());

  1984. #ifdef DEBUG

  1985.             if (opcode != kPluginBridgeNonRtServerPong) {

  1986.                 carla_debug("CarlaPluginBridge::handleNonRtData() - got opcode: %s", PluginBridgeNonRtServerOpcode2str(opcode));

  1987.             }

  1988. #endif

  1989.             if (opcode != kPluginBridgeNonRtServerNull && fLastPongTime > 0)

  1990.                 fLastPongTime = Time::currentTimeMillis();

  1991. 

  1992.             switch (opcode)

  1993.             {

  1994.             case kPluginBridgeNonRtServerNull:

  1995.             case kPluginBridgeNonRtServerPong:

  1996.                 break;

  1997. 

  1998.             case kPluginBridgeNonRtServerPluginInfo1: {

  1999.                 // uint/category, uint/hints, uint/optionsAvailable, uint/optionsEnabled, long/uniqueId

  2000.                 const uint32_t category = fShmNonRtServerControl.readUInt();

  2001.                 const uint32_t hints    = fShmNonRtServerControl.readUInt();

  2002.                 const uint32_t optionAv = fShmNonRtServerControl.readUInt();

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

  2004.                 const  int64_t uniqueId = fShmNonRtServerControl.readLong();

  2005. 

  2006.                 pData->hints   = hints | PLUGIN_IS_BRIDGE;

  2007.                 pData->options = optionEn;

  2008. 

  2009.                 fInfo.category = static_cast<PluginCategory>(category);

  2010.                 fInfo.uniqueId = uniqueId;

  2011.                 fInfo.optionsAvailable = optionAv;

  2012.             }   break;

  2013. 

  2014.             case kPluginBridgeNonRtServerPluginInfo2: {

  2015.                 // uint/size, str[] (realName), uint/size, str[] (label), uint/size, str[] (maker), uint/size, str[] (copyright)

  2016. 

  2017.                 // realName

  2018.                 const uint32_t realNameSize(fShmNonRtServerControl.readUInt());

  2019.                 char realName[realNameSize+1];

  2020.                 carla_zeroChar(realName, realNameSize+1);

  2021.                 fShmNonRtServerControl.readCustomData(realName, realNameSize);

  2022. 

  2023.                 // label

  2024.                 const uint32_t labelSize(fShmNonRtServerControl.readUInt());

  2025.                 char label[labelSize+1];

  2026.                 carla_zeroChar(label, labelSize+1);

  2027.                 fShmNonRtServerControl.readCustomData(label, labelSize);

  2028. 

  2029.                 // maker

  2030.                 const uint32_t makerSize(fShmNonRtServerControl.readUInt());

  2031.                 char maker[makerSize+1];

  2032.                 carla_zeroChar(maker, makerSize+1);

  2033.                 fShmNonRtServerControl.readCustomData(maker, makerSize);

  2034. 

  2035.                 // copyright

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

  2037.                 char copyright[copyrightSize+1];

  2038.                 carla_zeroChar(copyright, copyrightSize+1);

  2039.                 fShmNonRtServerControl.readCustomData(copyright, copyrightSize);

  2040. 

  2041.                 fInfo.name  = realName;

  2042.                 fInfo.label = label;

  2043.                 fInfo.maker = maker;

  2044.                 fInfo.copyright = copyright;

  2045. 

  2046.                 if (pData->name == nullptr)

  2047.                     pData->name = pData->engine->getUniquePluginName(realName);

  2048.             }   break;

  2049. 

  2050.             case kPluginBridgeNonRtServerAudioCount: {

  2051.                 // uint/ins, uint/outs

  2052.                 fInfo.aIns  = fShmNonRtServerControl.readUInt();

  2053.                 fInfo.aOuts = fShmNonRtServerControl.readUInt();

  2054.             }   break;

  2055. 

  2056.             case kPluginBridgeNonRtServerMidiCount: {

  2057.                 // uint/ins, uint/outs

  2058.                 fInfo.mIns  = fShmNonRtServerControl.readUInt();

  2059.                 fInfo.mOuts = fShmNonRtServerControl.readUInt();

  2060.             }   break;

  2061. 

  2062.             case kPluginBridgeNonRtServerParameterCount: {

  2063.                 // uint/count

  2064.                 const uint32_t count = fShmNonRtServerControl.readUInt();

  2065. 

  2066.                 // delete old data

  2067.                 pData->param.clear();

  2068. 

  2069.                 if (fParams != nullptr)

  2070.                 {

  2071.                     delete[] fParams;

  2072.                     fParams = nullptr;

  2073.                 }

  2074. 

  2075.                 if (count > 0)

  2076.                 {

  2077.                     pData->param.createNew(count, false);

  2078.                     fParams = new BridgeParamInfo[count];

  2079. 

  2080.                     // we might not receive all parameter data, so ensure range max is not 0

  2081.                     for (uint32_t i=0; i<count; ++i)

  2082.                     {

  2083.                         pData->param.ranges[i].def = 0.0f;

  2084.                         pData->param.ranges[i].min = 0.0f;

  2085.                         pData->param.ranges[i].max = 1.0f;

  2086.                         pData->param.ranges[i].step = 0.001f;

  2087.                         pData->param.ranges[i].stepSmall = 0.0001f;

  2088.                         pData->param.ranges[i].stepLarge = 0.1f;

  2089.                     }

  2090.                 }

  2091.             }   break;

  2092. 

  2093.             case kPluginBridgeNonRtServerProgramCount: {

  2094.                 // uint/count

  2095.                 pData->prog.clear();

  2096. 

  2097.                 if (const uint32_t count = fShmNonRtServerControl.readUInt())

  2098.                     pData->prog.createNew(static_cast<uint32_t>(count));

  2099. 

  2100.             }   break;

  2101. 

  2102.             case kPluginBridgeNonRtServerMidiProgramCount: {

  2103.                 // uint/count

  2104.                 pData->midiprog.clear();

  2105. 

  2106.                 if (const uint32_t count = fShmNonRtServerControl.readUInt())

  2107.                     pData->midiprog.createNew(static_cast<uint32_t>(count));

  2108. 

  2109.             }   break;

  2110. 

  2111.             case kPluginBridgeNonRtServerParameterData1: {

  2112.                 // uint/index, int/rindex, uint/type, uint/hints, int/cc

  2113.                 const uint32_t index  = fShmNonRtServerControl.readUInt();

  2114.                 const  int32_t rindex = fShmNonRtServerControl.readInt();

  2115.                 const uint32_t type   = fShmNonRtServerControl.readUInt();

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

  2117.                 const  int16_t midiCC = fShmNonRtServerControl.readShort();

  2118. 

  2119.                 CARLA_SAFE_ASSERT_BREAK(midiCC >= -1 && midiCC < MAX_MIDI_CONTROL);

  2120.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2121. 

  2122.                 if (index < pData->param.count)

  2123.                 {

  2124.                     pData->param.data[index].type   = static_cast<ParameterType>(type);

  2125.                     pData->param.data[index].index  = static_cast<int32_t>(index);

  2126.                     pData->param.data[index].rindex = rindex;

  2127.                     pData->param.data[index].hints  = hints;

  2128.                     pData->param.data[index].midiCC = midiCC;

  2129.                 }

  2130.             }   break;

  2131. 

  2132.             case kPluginBridgeNonRtServerParameterData2: {

  2133.                 // uint/index, uint/size, str[] (name), uint/size, str[] (unit)

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

  2135. 

  2136.                 // name

  2137.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2138.                 char name[nameSize+1];

  2139.                 carla_zeroChar(name, nameSize+1);

  2140.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2141. 

  2142.                 // symbol

  2143.                 const uint32_t symbolSize(fShmNonRtServerControl.readUInt());

  2144.                 char symbol[symbolSize+1];

  2145.                 carla_zeroChar(symbol, symbolSize+1);

  2146.                 fShmNonRtServerControl.readCustomData(symbol, symbolSize);

  2147. 

  2148.                 // unit

  2149.                 const uint32_t unitSize(fShmNonRtServerControl.readUInt());

  2150.                 char unit[unitSize+1];

  2151.                 carla_zeroChar(unit, unitSize+1);

  2152.                 fShmNonRtServerControl.readCustomData(unit, unitSize);

  2153. 

  2154.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2155. 

  2156.                 if (index < pData->param.count)

  2157.                 {

  2158.                     fParams[index].name   = name;

  2159.                     fParams[index].symbol = symbol;

  2160.                     fParams[index].unit   = unit;

  2161.                 }

  2162.             }   break;

  2163. 

  2164.             case kPluginBridgeNonRtServerParameterRanges: {

  2165.                 // uint/index, float/def, float/min, float/max, float/step, float/stepSmall, float/stepLarge

  2166.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2167.                 const float def      = fShmNonRtServerControl.readFloat();

  2168.                 const float min      = fShmNonRtServerControl.readFloat();

  2169.                 const float max      = fShmNonRtServerControl.readFloat();

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

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

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

  2173. 

  2174.                 CARLA_SAFE_ASSERT_BREAK(min < max);

  2175.                 CARLA_SAFE_ASSERT_BREAK(def >= min);

  2176.                 CARLA_SAFE_ASSERT_BREAK(def <= max);

  2177.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2178. 

  2179.                 if (index < pData->param.count)

  2180.                 {

  2181.                     pData->param.ranges[index].def = def;

  2182.                     pData->param.ranges[index].min = min;

  2183.                     pData->param.ranges[index].max = max;

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

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

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

  2187.                 }

  2188.             }   break;

  2189. 

  2190.             case kPluginBridgeNonRtServerParameterValue: {

  2191.                 // uint/index, float/value

  2192.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2193.                 const float    value = fShmNonRtServerControl.readFloat();

  2194. 

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

  2196.                 {

  2197.                     const float fixedValue(pData->param.getFixedValue(index, value));

  2198.                     fParams[index].value = fixedValue;

  2199. 

  2200.                     CarlaPlugin::setParameterValue(index, fixedValue, false, true, true);

  2201.                 }

  2202.             }   break;

  2203. 

  2204.             case kPluginBridgeNonRtServerParameterValue2: {

  2205.                 // uint/index, float/value

  2206.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2207.                 const float    value = fShmNonRtServerControl.readFloat();

  2208. 

  2209.                 if (index < pData->param.count)

  2210.                 {

  2211.                     const float fixedValue(pData->param.getFixedValue(index, value));

  2212.                     fParams[index].value = fixedValue;

  2213.                 }

  2214.             }   break;

  2215. 

  2216.             case kPluginBridgeNonRtServerDefaultValue: {

  2217.                 // uint/index, float/value

  2218.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2219.                 const float    value = fShmNonRtServerControl.readFloat();

  2220. 

  2221.                 if (index < pData->param.count)

  2222.                     pData->param.ranges[index].def = value;

  2223.             }   break;

  2224. 

  2225.             case kPluginBridgeNonRtServerCurrentProgram: {

  2226.                 // int/index

  2227.                 const int32_t index = fShmNonRtServerControl.readInt();

  2228. 

  2229.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

  2230.                 CARLA_SAFE_ASSERT_INT2(index < static_cast<int32_t>(pData->prog.count), index, pData->prog.count);

  2231. 

  2232.                 CarlaPlugin::setProgram(index, false, true, true);

  2233.             }   break;

  2234. 

  2235.             case kPluginBridgeNonRtServerCurrentMidiProgram: {

  2236.                 // int/index

  2237.                 const int32_t index = fShmNonRtServerControl.readInt();

  2238. 

  2239.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

  2240.                 CARLA_SAFE_ASSERT_INT2(index < static_cast<int32_t>(pData->midiprog.count), index, pData->midiprog.count);

  2241. 

  2242.                 CarlaPlugin::setMidiProgram(index, false, true, true);

  2243.             }   break;

  2244. 

  2245.             case kPluginBridgeNonRtServerProgramName: {

  2246.                 // uint/index, uint/size, str[] (name)

  2247.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2248. 

  2249.                 // name

  2250.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2251.                 char name[nameSize+1];

  2252.                 carla_zeroChar(name, nameSize+1);

  2253.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2254. 

  2255.                 CARLA_SAFE_ASSERT_INT2(index < pData->prog.count, index, pData->prog.count);

  2256. 

  2257.                 if (index < pData->prog.count)

  2258.                 {

  2259.                     if (pData->prog.names[index] != nullptr)

  2260.                         delete[] pData->prog.names[index];

  2261.                     pData->prog.names[index] = carla_strdup(name);

  2262.                 }

  2263.             }   break;

  2264. 

  2265.             case kPluginBridgeNonRtServerMidiProgramData: {

  2266.                 // uint/index, uint/bank, uint/program, uint/size, str[] (name)

  2267.                 const uint32_t index   = fShmNonRtServerControl.readUInt();

  2268.                 const uint32_t bank    = fShmNonRtServerControl.readUInt();

  2269.                 const uint32_t program = fShmNonRtServerControl.readUInt();

  2270. 

  2271.                 // name

  2272.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2273.                 char name[nameSize+1];

  2274.                 carla_zeroChar(name, nameSize+1);

  2275.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2276. 

  2277.                 CARLA_SAFE_ASSERT_INT2(index < pData->midiprog.count, index, pData->midiprog.count);

  2278. 

  2279.                 if (index < pData->midiprog.count)

  2280.                 {

  2281.                     if (pData->midiprog.data[index].name != nullptr)

  2282.                         delete[] pData->midiprog.data[index].name;

  2283.                     pData->midiprog.data[index].bank    = bank;

  2284.                     pData->midiprog.data[index].program = program;

  2285.                     pData->midiprog.data[index].name    = carla_strdup(name);

  2286.                 }

  2287.             }   break;

  2288. 

  2289.             case kPluginBridgeNonRtServerSetCustomData: {

  2290.                 // uint/size, str[], uint/size, str[], uint/size, str[]

  2291. 

  2292.                 // type

  2293.                 const uint32_t typeSize(fShmNonRtServerControl.readUInt());

  2294.                 char type[typeSize+1];

  2295.                 carla_zeroChar(type, typeSize+1);

  2296.                 fShmNonRtServerControl.readCustomData(type, typeSize);

  2297. 

  2298.                 // key

  2299.                 const uint32_t keySize(fShmNonRtServerControl.readUInt());

  2300.                 char key[keySize+1];

  2301.                 carla_zeroChar(key, keySize+1);

  2302.                 fShmNonRtServerControl.readCustomData(key, keySize);

  2303. 

  2304.                 // value

  2305.                 const uint32_t valueSize(fShmNonRtServerControl.readUInt());

  2306.                 char value[valueSize+1];

  2307.                 carla_zeroChar(value, valueSize+1);

  2308.                 fShmNonRtServerControl.readCustomData(value, valueSize);

  2309. 

  2310.                 CarlaPlugin::setCustomData(type, key, value, false);

  2311.             }   break;

  2312. 

  2313.             case kPluginBridgeNonRtServerSetChunkDataFile: {

  2314.                 // uint/size, str[] (filename)

  2315. 

  2316.                 // chunkFilePath

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

  2318.                 char chunkFilePath[chunkFilePathSize+1];

  2319.                 carla_zeroChar(chunkFilePath, chunkFilePathSize+1);

  2320.                 fShmNonRtServerControl.readCustomData(chunkFilePath, chunkFilePathSize);

  2321. 

  2322.                 String realChunkFilePath(chunkFilePath);

  2323.                 carla_stdout("chunk save path BEFORE => %s", realChunkFilePath.toRawUTF8());

  2324. 

  2325. #ifndef CARLA_OS_WIN

  2326.                 // Using Wine, fix temp dir

  2327.                 if (fBinaryType == BINARY_WIN32 || fBinaryType == BINARY_WIN64)

  2328.                 {

  2329.                     // Get WINEPREFIX

  2330.                     String wineDir;

  2331.                     if (const char* const WINEPREFIX = getenv("WINEPREFIX"))

  2332.                         wineDir = String(WINEPREFIX);

  2333.                     else

  2334.                         wineDir = File::getSpecialLocation(File::userHomeDirectory).getFullPathName() + "/.wine";

  2335. 

  2336.                     const StringArray driveLetterSplit(StringArray::fromTokens(realChunkFilePath, ":/", ""));

  2337. 

  2338.                     realChunkFilePath  = wineDir;

  2339.                     realChunkFilePath += "/drive_";

  2340.                     realChunkFilePath += driveLetterSplit[0].toLowerCase();

  2341.                     realChunkFilePath += "/";

  2342.                     realChunkFilePath += driveLetterSplit[1];

  2343. 

  2344.                     realChunkFilePath  = realChunkFilePath.replace("\\", "/");

  2345.                     carla_stdout("chunk save path AFTER => %s", realChunkFilePath.toRawUTF8());

  2346.                 }

  2347. #endif

  2348. 

  2349.                 File chunkFile(realChunkFilePath);

  2350. 

  2351.                 if (chunkFile.existsAsFile())

  2352.                 {

  2353.                     fInfo.chunk = carla_getChunkFromBase64String(chunkFile.loadFileAsString().toRawUTF8());

  2354.                     chunkFile.deleteFile();

  2355.                     carla_stderr("chunk data final");

  2356.                 }

  2357.             }   break;

  2358. 

  2359.             case kPluginBridgeNonRtServerSetLatency: {

  2360.                 // uint

  2361.             }   break;

  2362. 

  2363.             case kPluginBridgeNonRtServerReady:

  2364.                 fInitiated = true;

  2365.                 break;

  2366. 

  2367.             case kPluginBridgeNonRtServerSaved:

  2368.                 fSaved = true;

  2369.                 break;

  2370. 

  2371.             case kPluginBridgeNonRtServerUiClosed:

  2372.                 pData->transientTryCounter = 0;

  2373.                 pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2374.                 break;

  2375. 

  2376.             case kPluginBridgeNonRtServerError: {

  2377.                 // error

  2378.                 const uint32_t errorSize(fShmNonRtServerControl.readUInt());

  2379.                 char error[errorSize+1];

  2380.                 carla_zeroChar(error, errorSize+1);

  2381.                 fShmNonRtServerControl.readCustomData(error, errorSize);

  2382. 

  2383.                 if (fInitiated)

  2384.                 {

  2385.                     pData->engine->callback(ENGINE_CALLBACK_ERROR, pData->id, 0, 0, 0.0f, error);

  2386. 

  2387.                     // just in case

  2388.                     pData->engine->setLastError(error);

  2389.                     fInitError = true;

  2390.                 }

  2391.                 else

  2392.                 {

  2393.                     pData->engine->setLastError(error);

  2394.                     fInitError = true;

  2395.                     fInitiated = true;

  2396.                 }

  2397.             }   break;

  2398.             }

  2399.         }

  2400.     }

  2401. 

  2402.     // -------------------------------------------------------------------

  2403. 

  2404.     uintptr_t getUiBridgeProcessId() const noexcept override

  2405.     {

  2406.         return fBridgeThread.getProcessPID();

  2407.     }

  2408. 

  2409.     const void* getExtraStuff() const noexcept override

  2410.     {

  2411.         return fBridgeBinary.isNotEmpty() ? fBridgeBinary.buffer() : nullptr;

  2412.     }

  2413. 

  2414.     // -------------------------------------------------------------------

  2415. 

  2416.     bool init(const char* const filename, const char* const name, const char* const label, const char* const bridgeBinary)

  2417.     {

  2418.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2419. 

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

  2421.         // first checks

  2422. 

  2423.         if (pData->client != nullptr)

  2424.         {

  2425.             pData->engine->setLastError("Plugin client is already registered");

  2426.             return false;

  2427.         }

  2428. 

  2429.         if (bridgeBinary == nullptr || bridgeBinary[0] == '\0')

  2430.         {

  2431.             pData->engine->setLastError("null bridge binary");

  2432.             return false;

  2433.         }

  2434. 

  2435.         // ---------------------------------------------------------------

  2436.         // set info

  2437. 

  2438.         if (name != nullptr && name[0] != '\0')

  2439.             pData->name = pData->engine->getUniquePluginName(name);

  2440. 

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

  2442.             pData->filename = carla_strdup(filename);

  2443.         else

  2444.             pData->filename = carla_strdup("");

  2445. 

  2446.         fBridgeBinary = bridgeBinary;

  2447. 

  2448.         std::srand(static_cast<uint>(std::time(nullptr)));

  2449. 

  2450.         // ---------------------------------------------------------------

  2451.         // init sem/shm

  2452. 

  2453.         if (! fShmAudioPool.initialize())

  2454.         {

  2455.             carla_stdout("Failed to initialize shared memory audio pool");

  2456.             return false;

  2457.         }

  2458. 

  2459.         if (! fShmRtClientControl.initialize())

  2460.         {

  2461.             carla_stdout("Failed to initialize RT client control");

  2462.             fShmAudioPool.clear();

  2463.             return false;

  2464.         }

  2465. 

  2466.         if (! fShmNonRtClientControl.initialize())

  2467.         {

  2468.             carla_stdout("Failed to initialize Non-RT client control");

  2469.             fShmRtClientControl.clear();

  2470.             fShmAudioPool.clear();

  2471.             return false;

  2472.         }

  2473. 

  2474.         if (! fShmNonRtServerControl.initialize())

  2475.         {

  2476.             carla_stdout("Failed to initialize Non-RT server control");

  2477.             fShmNonRtClientControl.clear();

  2478.             fShmRtClientControl.clear();

  2479.             fShmAudioPool.clear();

  2480.             return false;

  2481.         }

  2482. 

  2483.         // ---------------------------------------------------------------

  2484. 

  2485.         carla_stdout("Carla Server Info:");

  2486.         carla_stdout("  sizeof(BridgeRtClientData):    " P_SIZE, sizeof(BridgeRtClientData));

  2487.         carla_stdout("  sizeof(BridgeNonRtClientData): " P_SIZE, sizeof(BridgeNonRtClientData));

  2488.         carla_stdout("  sizeof(BridgeNonRtServerData): " P_SIZE, sizeof(BridgeNonRtServerData));

  2489. 

  2490.         // initial values

  2491.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientNull);

  2492.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeRtClientData)));

  2493.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeNonRtClientData)));

  2494.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeNonRtServerData)));

  2495. 

  2496.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  2497.         fShmNonRtClientControl.writeUInt(pData->engine->getBufferSize());

  2498. 

  2499.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  2500.         fShmNonRtClientControl.writeDouble(pData->engine->getSampleRate());

  2501. 

  2502.         fShmNonRtClientControl.commitWrite();

  2503. 

  2504.         // init bridge thread

  2505.         {

  2506.             char shmIdsStr[6*4+1];

  2507.             carla_zeroChar(shmIdsStr, 6*4+1);

  2508. 

  2509.             std::strncpy(shmIdsStr+6*0, &fShmAudioPool.filename[fShmAudioPool.filename.length()-6], 6);

  2510.             std::strncpy(shmIdsStr+6*1, &fShmRtClientControl.filename[fShmRtClientControl.filename.length()-6], 6);

  2511.             std::strncpy(shmIdsStr+6*2, &fShmNonRtClientControl.filename[fShmNonRtClientControl.filename.length()-6], 6);

  2512.             std::strncpy(shmIdsStr+6*3, &fShmNonRtServerControl.filename[fShmNonRtServerControl.filename.length()-6], 6);

  2513. 

  2514.             fBridgeThread.setData(bridgeBinary, label, shmIdsStr);

  2515.             fBridgeThread.startThread();

  2516.         }

  2517. 

  2518.         fInitiated = false;

  2519.         fLastPongTime = Time::currentTimeMillis();

  2520.         CARLA_SAFE_ASSERT(fLastPongTime > 0);

  2521. 

  2522.         static bool sFirstInit = true;

  2523. 

  2524.         int64_t timeoutEnd = 5000;

  2525. 

  2526.         if (sFirstInit)

  2527.             timeoutEnd *= 2;

  2528. #ifndef CARLA_OS_WIN

  2529.          if (fBinaryType == BINARY_WIN32 || fBinaryType == BINARY_WIN64)

  2530.             timeoutEnd *= 2;

  2531. #endif

  2532.         sFirstInit = false;

  2533. 

  2534.         for (; Time::currentTimeMillis() < fLastPongTime + timeoutEnd && fBridgeThread.isThreadRunning();)

  2535.         {

  2536.             pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2537.             pData->engine->idle();

  2538.             idle();

  2539. 

  2540.             if (fInitiated)

  2541.                 break;

  2542. 

  2543.             carla_msleep(20);

  2544.         }

  2545. 

  2546.         fLastPongTime = -1;

  2547. 

  2548.         if (fInitError || ! fInitiated)

  2549.         {

  2550.             fBridgeThread.stopThread(6000);

  2551. 

  2552.             if (! fInitError)

  2553.                 pData->engine->setLastError("Timeout while waiting for a response from plugin-bridge\n(or the plugin crashed on initialization?)");

  2554. 

  2555.             return false;

  2556.         }

  2557. 

  2558.         // ---------------------------------------------------------------

  2559.         // register client

  2560. 

  2561.         if (pData->name == nullptr)

  2562.         {

  2563.             if (label != nullptr && label[0] != '\0')

  2564.                 pData->name = pData->engine->getUniquePluginName(label);

  2565.             else

  2566.                 pData->name = pData->engine->getUniquePluginName("unknown");

  2567.         }

  2568. 

  2569.         pData->client = pData->engine->addClient(this);

  2570. 

  2571.         if (pData->client == nullptr || ! pData->client->isOk())

  2572.         {

  2573.             pData->engine->setLastError("Failed to register plugin client");

  2574.             return false;

  2575.         }

  2576. 

  2577.         return true;

  2578.     }

  2579. 

  2580. private:

  2581.     const BinaryType fBinaryType;

  2582.     const PluginType fPluginType;

  2583. 

  2584.     bool fInitiated;

  2585.     bool fInitError;

  2586.     bool fSaved;

  2587.     bool fTimedOut;

  2588.     bool fTimedError;

  2589. 

  2590.     int64_t fLastPongTime;

  2591. 

  2592.     CarlaString             fBridgeBinary;

  2593.     CarlaPluginBridgeThread fBridgeThread;

  2594. 

  2595.     BridgeAudioPool          fShmAudioPool;

  2596.     BridgeRtClientControl    fShmRtClientControl;

  2597.     BridgeNonRtClientControl fShmNonRtClientControl;

  2598.     BridgeNonRtServerControl fShmNonRtServerControl;

  2599. 

  2600.     struct Info {

  2601.         uint32_t aIns, aOuts;

  2602.         uint32_t cvIns, cvOuts;

  2603.         uint32_t mIns, mOuts;

  2604.         PluginCategory category;

  2605.         uint optionsAvailable;

  2606.         int64_t uniqueId;

  2607.         CarlaString name;

  2608.         CarlaString label;

  2609.         CarlaString maker;

  2610.         CarlaString copyright;

  2611.         std::vector<uint8_t> chunk;

  2612. 

  2613.         Info()

  2614.             : aIns(0),

  2615.               aOuts(0),

  2616.               cvIns(0),

  2617.               cvOuts(0),

  2618.               mIns(0),

  2619.               mOuts(0),

  2620.               category(PLUGIN_CATEGORY_NONE),

  2621.               optionsAvailable(0),

  2622.               uniqueId(0),

  2623.               name(),

  2624.               label(),

  2625.               maker(),

  2626.               copyright(),

  2627.               chunk() {}

  2628.     } fInfo;

  2629. 

  2630.     BridgeParamInfo* fParams;

  2631. 

  2632.     void resizeAudioPool(const uint32_t bufferSize)

  2633.     {

  2634.         fShmAudioPool.resize(bufferSize, fInfo.aIns+fInfo.aOuts, fInfo.cvIns+fInfo.cvOuts);

  2635. 

  2636.         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientSetAudioPool);

  2637.         fShmRtClientControl.writeULong(static_cast<uint64_t>(fShmAudioPool.size));

  2638. 

  2639.         fShmRtClientControl.commitWrite();

  2640. 

  2641.         waitForClient("resize-pool");

  2642.     }

  2643. 

  2644.     void waitForClient(const char* const action, const uint secs = 5)

  2645.     {

  2646.         CARLA_SAFE_ASSERT_RETURN(! fTimedOut,);

  2647.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  2648. 

  2649.         if (fShmRtClientControl.waitForClient(secs, &fTimedOut))

  2650.             return;

  2651. 

  2652.         if (fTimedOut)

  2653.         {

  2654.             carla_stderr("waitForClient(%s) timeout here", action);

  2655.         }

  2656.         else

  2657.         {

  2658.             fTimedError = true;

  2659.             carla_stderr("waitForClient(%s) error while waiting", action);

  2660.         }

  2661.     }

  2662. 

  2663.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginBridge)

  2664. };

  2665. 

  2666. CARLA_BACKEND_END_NAMESPACE

  2667. 

  2668. // -------------------------------------------------------------------------------------------------------------------

  2669. 

  2670. CARLA_BACKEND_START_NAMESPACE

  2671. 

  2672. CarlaPlugin* CarlaPlugin::newBridge(const Initializer& init, BinaryType btype, PluginType ptype, const char* const bridgeBinary)

  2673. {

  2674.     carla_debug("CarlaPlugin::newBridge({%p, \"%s\", \"%s\", \"%s\"}, %s, %s, \"%s\")", init.engine, init.filename, init.name, init.label, BinaryType2Str(btype), PluginType2Str(ptype), bridgeBinary);

  2675. 

  2676.     if (bridgeBinary == nullptr || bridgeBinary[0] == '\0')

  2677.     {

  2678.         init.engine->setLastError("Bridge not possible, bridge-binary not found");

  2679.         return nullptr;

  2680.     }

  2681. 

  2682.     CarlaPluginBridge* const plugin(new CarlaPluginBridge(init.engine, init.id, btype, ptype));

  2683. 

  2684.     if (! plugin->init(init.filename, init.name, init.label, bridgeBinary))

  2685.     {

  2686.         delete plugin;

  2687.         return nullptr;

  2688.     }

  2689. 

  2690.     plugin->reload();

  2691. 

  2692.     bool canRun = true;

  2693. 

  2694.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK)

  2695.     {

  2696.         if (! plugin->canRunInRack())

  2697.         {

  2698.             init.engine->setLastError("Carla's rack mode can only work with Stereo Bridged plugins, sorry!");

  2699.             canRun = false;

  2700.         }

  2701.         else if (plugin->getCVInCount() > 0 || plugin->getCVInCount() > 0)

  2702.         {

  2703.             init.engine->setLastError("Carla's rack mode cannot work with plugins that have CV ports, sorry!");

  2704.             canRun = false;

  2705.         }

  2706.     }

  2707.     else if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_PATCHBAY && (plugin->getCVInCount() > 0 || plugin->getCVInCount() > 0))

  2708.     {

  2709.         init.engine->setLastError("CV ports in patchbay mode is still TODO");

  2710.         canRun = false;

  2711.     }

  2712. 

  2713.     if (! canRun)

  2714.     {

  2715.         delete plugin;

  2716.         return nullptr;

  2717.     }

  2718. 

  2719.     return plugin;

  2720. }

  2721. 

  2722. CARLA_BACKEND_END_NAMESPACE

  2723. 

  2724. // -------------------------------------------------------------------------------------------------------------------