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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.         carla_shm_init(shm);

  64.     }

  65. #endif

  66. 

  67.     ~BridgeAudioPool() noexcept

  68.     {

  69.         // should be cleared by now

  70.         CARLA_SAFE_ASSERT(data == nullptr);

  71. 

  72.         clear();

  73.     }

  74. 

  75.     bool initialize() noexcept

  76.     {

  77.         char tmpFileBase[64];

  78. 

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

  80. 

  81.         shm = carla_shm_create_temp(tmpFileBase);

  82. 

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

  84. 

  85.         filename = tmpFileBase;

  86.         return true;

  87.     }

  88. 

  89.     void clear() noexcept

  90.     {

  91.         filename.clear();

  92. 

  93.         if (! carla_is_shm_valid(shm))

  94.         {

  95.             CARLA_SAFE_ASSERT(data == nullptr);

  96.             return;

  97.         }

  98. 

  99.         if (data != nullptr)

  100.         {

  101.             carla_shm_unmap(shm, data);

  102.             data = nullptr;

  103.         }

  104. 

  105.         size = 0;

  106.         carla_shm_close(shm);

  107.         carla_shm_init(shm);

  108.     }

  109. 

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

  111.     {

  112.         CARLA_SAFE_ASSERT_RETURN(carla_is_shm_valid(shm),);

  113. 

  114.         if (data != nullptr)

  115.             carla_shm_unmap(shm, data);

  116. 

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

  118. 

  119.         if (size == 0)

  120.             size = sizeof(float);

  121. 

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

  123.     }

  124. 

  125.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeAudioPool)

  126. };

  127. 

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

  129. 

  130. struct BridgeRtClientControl : public CarlaRingBufferControl<SmallStackBuffer> {

  131.     BridgeRtClientData* data;

  132.     CarlaString filename;

  133.     bool needsSemDestroy;

  134.     shm_t shm;

  135. 

  136.     BridgeRtClientControl()

  137.         : data(nullptr),

  138.           filename(),

  139.           needsSemDestroy(false)

  140. #ifdef CARLA_PROPER_CPP11_SUPPORT

  141.         , shm(shm_t_INIT) {}

  142. #else

  143.     {

  144.         carla_shm_init(shm);

  145.     }

  146. #endif

  147. 

  148.     ~BridgeRtClientControl() noexcept override

  149.     {

  150.         // should be cleared by now

  151.         CARLA_SAFE_ASSERT(data == nullptr);

  152. 

  153.         clear();

  154.     }

  155. 

  156.     bool initialize() noexcept

  157.     {

  158.         char tmpFileBase[64];

  159. 

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

  161. 

  162.         shm = carla_shm_create_temp(tmpFileBase);

  163. 

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

  165. 

  166.         if (! mapData())

  167.         {

  168.             carla_shm_close(shm);

  169.             carla_shm_init(shm);

  170.             return false;

  171.         }

  172. 

  173.         CARLA_SAFE_ASSERT(data != nullptr);

  174. 

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

  176.         {

  177.             unmapData();

  178.             carla_shm_close(shm);

  179.             carla_shm_init(shm);

  180.             return false;

  181.         }

  182. 

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

  184.         {

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

  186.             unmapData();

  187.             carla_shm_close(shm);

  188.             carla_shm_init(shm);

  189.             return false;

  190.         }

  191. 

  192.         filename = tmpFileBase;

  193.         needsSemDestroy = true;

  194.         return true;

  195.     }

  196. 

  197.     void clear() noexcept

  198.     {

  199.         filename.clear();

  200. 

  201.         if (needsSemDestroy)

  202.         {

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

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

  205.             needsSemDestroy = false;

  206.         }

  207. 

  208.         if (data != nullptr)

  209.             unmapData();

  210. 

  211.         if (! carla_is_shm_valid(shm))

  212.             return;

  213. 

  214.         carla_shm_close(shm);

  215.         carla_shm_init(shm);

  216.     }

  217. 

  218.     bool mapData() noexcept

  219.     {

  220.         CARLA_SAFE_ASSERT(data == nullptr);

  221. 

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

  223.         {

  224.             carla_zeroStruct(data->sem);

  225.             carla_zeroStruct(data->timeInfo);

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

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

  228.             return true;

  229.         }

  230. 

  231.         return false;

  232.     }

  233. 

  234.     void unmapData() noexcept

  235.     {

  236.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  237. 

  238.         carla_shm_unmap(shm, data);

  239.         data = nullptr;

  240. 

  241.         setRingBuffer(nullptr, false);

  242.     }

  243. 

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

  245.     {

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

  247. 

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

  249. 

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

  251.     }

  252. 

  253.     void writeOpcode(const PluginBridgeRtClientOpcode opcode) noexcept

  254.     {

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

  256.     }

  257. 

  258.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeRtClientControl)

  259. };

  260. 

  261. // -------------------------------------------------------------------------------------------------------------------

  262. 

  263. struct BridgeNonRtClientControl : public CarlaRingBufferControl<BigStackBuffer> {

  264.     BridgeNonRtClientData* data;

  265.     CarlaString filename;

  266.     CarlaMutex mutex;

  267.     shm_t shm;

  268. 

  269.     BridgeNonRtClientControl() noexcept

  270.         : data(nullptr),

  271.           filename(),

  272.           mutex()

  273. #ifdef CARLA_PROPER_CPP11_SUPPORT

  274.         , shm(shm_t_INIT) {}

  275. #else

  276.     {

  277.         carla_shm_init(shm);

  278.     }

  279. #endif

  280. 

  281.     ~BridgeNonRtClientControl() noexcept override

  282.     {

  283.         // should be cleared by now

  284.         CARLA_SAFE_ASSERT(data == nullptr);

  285. 

  286.         clear();

  287.     }

  288. 

  289.     bool initialize() noexcept

  290.     {

  291.         char tmpFileBase[64];

  292. 

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

  294. 

  295.         shm = carla_shm_create_temp(tmpFileBase);

  296. 

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

  298. 

  299.         if (! mapData())

  300.         {

  301.             carla_shm_close(shm);

  302.             carla_shm_init(shm);

  303.             return false;

  304.         }

  305. 

  306.         CARLA_SAFE_ASSERT(data != nullptr);

  307. 

  308.         filename = tmpFileBase;

  309.         return true;

  310.     }

  311. 

  312.     void clear() noexcept

  313.     {

  314.         filename.clear();

  315. 

  316.         if (data != nullptr)

  317.             unmapData();

  318. 

  319.         if (! carla_is_shm_valid(shm))

  320.             return;

  321. 

  322.         carla_shm_close(shm);

  323.         carla_shm_init(shm);

  324.     }

  325. 

  326.     bool mapData() noexcept

  327.     {

  328.         CARLA_SAFE_ASSERT(data == nullptr);

  329. 

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

  331.         {

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

  333.             return true;

  334.         }

  335. 

  336.         return false;

  337.     }

  338. 

  339.     void unmapData() noexcept

  340.     {

  341.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  342. 

  343.         carla_shm_unmap(shm, data);

  344.         data = nullptr;

  345. 

  346.         setRingBuffer(nullptr, false);

  347.     }

  348. 

  349.     void writeOpcode(const PluginBridgeNonRtClientOpcode opcode) noexcept

  350.     {

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

  352.     }

  353. 

  354.     void waitIfDataIsReachingLimit() noexcept

  355.     {

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

  357.             return;

  358. 

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

  360.         {

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

  362.             {

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

  364.                 writeOpcode(kPluginBridgeNonRtClientPing);

  365.                 commitWrite();

  366.                 return;

  367.             }

  368.             carla_msleep(20);

  369.         }

  370. 

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

  372.     }

  373. 

  374.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtClientControl)

  375. };

  376. 

  377. // -------------------------------------------------------------------------------------------------------------------

  378. 

  379. struct BridgeNonRtServerControl : public CarlaRingBufferControl<HugeStackBuffer> {

  380.     BridgeNonRtServerData* data;

  381.     CarlaString filename;

  382.     shm_t shm;

  383. 

  384.     BridgeNonRtServerControl() noexcept

  385.         : data(nullptr),

  386.           filename()

  387. #ifdef CARLA_PROPER_CPP11_SUPPORT

  388.         , shm(shm_t_INIT) {}

  389. #else

  390.     {

  391.         carla_shm_init(shm);

  392.     }

  393. #endif

  394. 

  395.     ~BridgeNonRtServerControl() noexcept override

  396.     {

  397.         // should be cleared by now

  398.         CARLA_SAFE_ASSERT(data == nullptr);

  399. 

  400.         clear();

  401.     }

  402. 

  403.     bool initialize() noexcept

  404.     {

  405.         char tmpFileBase[64];

  406. 

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

  408. 

  409.         shm = carla_shm_create_temp(tmpFileBase);

  410. 

  411.         if (! carla_is_shm_valid(shm))

  412.             return false;

  413. 

  414.         if (! mapData())

  415.         {

  416.             carla_shm_close(shm);

  417.             carla_shm_init(shm);

  418.             return false;

  419.         }

  420. 

  421.         CARLA_SAFE_ASSERT(data != nullptr);

  422. 

  423.         filename = tmpFileBase;

  424.         return true;

  425.     }

  426. 

  427.     void clear() noexcept

  428.     {

  429.         filename.clear();

  430. 

  431.         if (data != nullptr)

  432.             unmapData();

  433. 

  434.         if (! carla_is_shm_valid(shm))

  435.             return;

  436. 

  437.         carla_shm_close(shm);

  438.         carla_shm_init(shm);

  439.     }

  440. 

  441.     bool mapData() noexcept

  442.     {

  443.         CARLA_SAFE_ASSERT(data == nullptr);

  444. 

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

  446.         {

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

  448.             return true;

  449.         }

  450. 

  451.         return false;

  452.     }

  453. 

  454.     void unmapData() noexcept

  455.     {

  456.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  457. 

  458.         carla_shm_unmap(shm, data);

  459.         data = nullptr;

  460. 

  461.         setRingBuffer(nullptr, false);

  462.     }

  463. 

  464.     PluginBridgeNonRtServerOpcode readOpcode() noexcept

  465.     {

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

  467.     }

  468. 

  469.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtServerControl)

  470. };

  471. 

  472. // -------------------------------------------------------------------------------------------------------------------

  473. 

  474. struct BridgeParamInfo {

  475.     float value;

  476.     CarlaString name;

  477.     CarlaString symbol;

  478.     CarlaString unit;

  479. 

  480.     BridgeParamInfo() noexcept

  481.         : value(0.0f),

  482.           name(),

  483.           symbol(),

  484.           unit() {}

  485. 

  486.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeParamInfo)

  487. };

  488. 

  489. // -------------------------------------------------------------------------------------------------------------------

  490. 

  491. class CarlaPluginBridgeThread : public CarlaThread

  492. {

  493. public:

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

  495.         : CarlaThread("CarlaPluginBridgeThread"),

  496.           kEngine(engine),

  497.           kPlugin(plugin),

  498.           fBinary(),

  499.           fLabel(),

  500.           fShmIds(),

  501.           fProcess(),

  502.           leakDetector_CarlaPluginBridgeThread() {}

  503. 

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

  505.     {

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

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

  508.         CARLA_SAFE_ASSERT(! isThreadRunning());

  509. 

  510.         fBinary = binary;

  511.         fShmIds = shmIds;

  512. 

  513.         if (label != nullptr)

  514.             fLabel = label;

  515.         if (fLabel.isEmpty())

  516.             fLabel = "\"\"";

  517.     }

  518. 

  519.     uintptr_t getProcessPID() const noexcept

  520.     {

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

  522. 

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

  524.     }

  525. 

  526. protected:

  527.     void run()

  528.     {

  529.         if (fProcess == nullptr)

  530.         {

  531.             fProcess = new ChildProcess();

  532.         }

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

  534.         {

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

  536.         }

  537. 

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

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

  540. 

  541.         if (name.isEmpty())

  542.             name = "(none)";

  543. 

  544.         if (filename.isEmpty())

  545.             filename = "\"\"";

  546. 

  547.         StringArray arguments;

  548. 

  549. #ifndef CARLA_OS_WIN

  550.         // start with "wine" if needed

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

  552.             arguments.add("wine");

  553. #endif

  554. 

  555.         // binary

  556.         arguments.add(fBinary);

  557. 

  558.         // plugin type

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

  560. 

  561.         // filename

  562.         arguments.add(filename);

  563. 

  564.         // label

  565.         arguments.add(fLabel);

  566. 

  567.         // uniqueId

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

  569. 

  570.         bool started;

  571. 

  572.         {

  573.             char strBuf[STR_MAX+1];

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

  575. 

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

  577.             const ScopedEngineEnvironmentLocker _seel(kEngine);

  578. 

  579. #ifdef CARLA_OS_LINUX

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

  581. 

  582.             if (oldPreload != nullptr)

  583.                 ::unsetenv("LD_PRELOAD");

  584. #endif

  585. 

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

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

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

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

  590. 

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

  592.             carla_setenv("ENGINE_OPTION_MAX_PARAMETERS", strBuf);

  593. 

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

  595.             carla_setenv("ENGINE_OPTION_UI_BRIDGES_TIMEOUT",strBuf);

  596. 

  597.             if (options.pathLADSPA != nullptr)

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

  599.             else

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

  601. 

  602.             if (options.pathDSSI != nullptr)

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

  604.             else

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

  606. 

  607.             if (options.pathLV2 != nullptr)

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

  609.             else

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

  611. 

  612.             if (options.pathVST2 != nullptr)

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

  614.             else

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

  616. 

  617.             if (options.pathVST3 != nullptr)

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

  619.             else

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

  621. 

  622.             if (options.pathGIG != nullptr)

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

  624.             else

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

  626. 

  627.             if (options.pathSF2 != nullptr)

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

  629.             else

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

  631. 

  632.             if (options.pathSFZ != nullptr)

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

  634.             else

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

  636. 

  637.             if (options.binaryDir != nullptr)

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

  639.             else

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

  641. 

  642.             if (options.resourceDir != nullptr)

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

  644.             else

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

  646. 

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

  648. 

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

  650.             carla_setenv("ENGINE_OPTION_FRONTEND_WIN_ID", strBuf);

  651. 

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

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

  654. 

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

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

  657. 

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

  659. 

  660. #ifdef CARLA_OS_LINUX

  661.             if (oldPreload != nullptr)

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

  663. #endif

  664.         }

  665. 

  666.         if (! started)

  667.         {

  668.             carla_stdout("failed!");

  669.             fProcess = nullptr;

  670.             return;

  671.         }

  672. 

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

  674.             carla_sleep(1);

  675. 

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

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

  678.         {

  679.             fProcess->waitForProcessToFinish(2000);

  680. 

  681.             if (fProcess->isRunning())

  682.             {

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

  684.                 fProcess->kill();

  685.             }

  686.             else

  687.             {

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

  689.             }

  690.         }

  691.         else

  692.         {

  693.             // forced quit, may have crashed

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

  695.             {

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

  697. 

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

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

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

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

  702.             }

  703.             else

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

  705.         }

  706. 

  707.         carla_stdout("plugin bridge finished");

  708.         fProcess = nullptr;

  709.     }

  710. 

  711. private:

  712.     CarlaEngine* const kEngine;

  713.     CarlaPlugin* const kPlugin;

  714. 

  715.     String fBinary;

  716.     String fLabel;

  717.     String fShmIds;

  718. 

  719.     ScopedPointer<ChildProcess> fProcess;

  720. 

  721.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginBridgeThread)

  722. };

  723. 

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

  725. 

  726. class CarlaPluginBridge : public CarlaPlugin

  727. {

  728. public:

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

  730.         : CarlaPlugin(engine, id),

  731.           fBinaryType(btype),

  732.           fPluginType(ptype),

  733.           fInitiated(false),

  734.           fInitError(false),

  735.           fSaved(true),

  736.           fTimedOut(false),

  737.           fTimedError(false),

  738.           fLastPongTime(-1),

  739.           fBridgeBinary(),

  740.           fBridgeThread(engine, this),

  741.           fShmAudioPool(),

  742.           fShmRtClientControl(),

  743.           fShmNonRtClientControl(),

  744.           fShmNonRtServerControl(),

  745.           fInfo(),

  746.           fUniqueId(0),

  747.           fParams(nullptr),

  748.           leakDetector_CarlaPluginBridge()

  749.     {

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

  751. 

  752.         pData->hints |= PLUGIN_IS_BRIDGE;

  753.     }

  754. 

  755.     ~CarlaPluginBridge() override

  756.     {

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

  758. 

  759.         // close UI

  760.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  761.             pData->transientTryCounter = 0;

  762. 

  763.         pData->singleMutex.lock();

  764.         pData->masterMutex.lock();

  765. 

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

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

  768. 

  769.         if (pData->active)

  770.         {

  771.             deactivate();

  772.             pData->active = false;

  773.         }

  774. 

  775.         if (fBridgeThread.isThreadRunning())

  776.         {

  777.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientQuit);

  778.             fShmNonRtClientControl.commitWrite();

  779. 

  780.             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientQuit);

  781.             fShmRtClientControl.commitWrite();

  782. 

  783.             if (! fTimedOut)

  784.                 waitForClient("stopping", 3);

  785.         }

  786. 

  787.         fBridgeThread.stopThread(3000);

  788. 

  789.         fShmNonRtServerControl.clear();

  790.         fShmNonRtClientControl.clear();

  791.         fShmRtClientControl.clear();

  792.         fShmAudioPool.clear();

  793. 

  794.         clearBuffers();

  795. 

  796.         fInfo.chunk.clear();

  797.     }

  798. 

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

  800.     // Information (base)

  801. 

  802.     BinaryType getBinaryType() const noexcept

  803.     {

  804.         return fBinaryType;

  805.     }

  806. 

  807.     PluginType getType() const noexcept override

  808.     {

  809.         return fPluginType;

  810.     }

  811. 

  812.     PluginCategory getCategory() const noexcept override

  813.     {

  814.         return fInfo.category;

  815.     }

  816. 

  817.     int64_t getUniqueId() const noexcept override

  818.     {

  819.         return fUniqueId;

  820.     }

  821. 

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

  823.     // Information (count)

  824. 

  825.     uint32_t getMidiInCount() const noexcept override

  826.     {

  827.         return fInfo.mIns;

  828.     }

  829. 

  830.     uint32_t getMidiOutCount() const noexcept override

  831.     {

  832.         return fInfo.mOuts;

  833.     }

  834. 

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

  836.     // Information (current data)

  837. 

  838.     // TODO - missing getCustomData

  839. 

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

  841.     {

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

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

  844. 

  845.         waitForSaved();

  846. 

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

  848. 

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

  850.         return fInfo.chunk.size();

  851.     }

  852. 

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

  854.     // Information (per-plugin data)

  855. 

  856.     uint getOptionsAvailable() const noexcept override

  857.     {

  858.         return fInfo.optionsAvailable;

  859.     }

  860. 

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

  862.     {

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

  864. 

  865.         return fParams[parameterId].value;

  866.     }

  867. 

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

  869.     {

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

  871.     }

  872. 

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

  874.     {

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

  876.     }

  877. 

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

  879.     {

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

  881.     }

  882. 

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

  884.     {

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

  886.     }

  887. 

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

  889.     {

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

  891. 

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

  893.     }

  894. 

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

  896.     {

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

  898. 

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

  900.     }

  901. 

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

  903.     {

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

  905. 

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

  907.     }

  908. 

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

  910.     // Set data (state)

  911. 

  912.     void prepareForSave() noexcept override

  913.     {

  914.         fSaved = false;

  915. 

  916.         {

  917.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  918. 

  919.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPrepareForSave);

  920.             fShmNonRtClientControl.commitWrite();

  921.         }

  922.     }

  923. 

  924.     void waitForSaved()

  925.     {

  926.         if (fSaved)

  927.             return;

  928. 

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

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

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

  932. 

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

  934. 

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

  936.         {

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

  938. 

  939.             if (needsEngineIdle)

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

  941. 

  942.             if (fSaved)

  943.                 break;

  944. 

  945.             carla_msleep(20);

  946.         }

  947. 

  948.         if (! fSaved)

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

  950.         else

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

  952.     }

  953. 

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

  955.     // Set data (internal stuff)

  956. 

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

  958.     {

  959.         {

  960.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  961. 

  962.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetOption);

  963.             fShmNonRtClientControl.writeUInt(option);

  964.             fShmNonRtClientControl.writeBool(yesNo);

  965.             fShmNonRtClientControl.commitWrite();

  966.         }

  967. 

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

  969.     }

  970. 

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

  972.     {

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

  974. 

  975.         {

  976.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  977. 

  978.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetCtrlChannel);

  979.             fShmNonRtClientControl.writeShort(channel);

  980.             fShmNonRtClientControl.commitWrite();

  981.         }

  982. 

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

  984.     }

  985. 

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

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

  988. 

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

  990.     {

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

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

  993. 

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

  995.         fParams[parameterId].value = fixedValue;

  996. 

  997.         {

  998.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  999. 

  1000.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterValue);

  1001.             fShmNonRtClientControl.writeUInt(parameterId);

  1002.             fShmNonRtClientControl.writeFloat(value);

  1003.             fShmNonRtClientControl.commitWrite();

  1004.             fShmNonRtClientControl.waitIfDataIsReachingLimit();

  1005.         }

  1006. 

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

  1008.     }

  1009. 

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

  1011.     {

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

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

  1014.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1015. 

  1016.         {

  1017.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1018. 

  1019.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterMidiChannel);

  1020.             fShmNonRtClientControl.writeUInt(parameterId);

  1021.             fShmNonRtClientControl.writeByte(channel);

  1022.             fShmNonRtClientControl.commitWrite();

  1023.         }

  1024. 

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

  1026.     }

  1027. 

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

  1029.     {

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

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

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

  1033. 

  1034.         {

  1035.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1036. 

  1037.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterMidiCC);

  1038.             fShmNonRtClientControl.writeUInt(parameterId);

  1039.             fShmNonRtClientControl.writeShort(cc);

  1040.             fShmNonRtClientControl.commitWrite();

  1041.         }

  1042. 

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

  1044.     }

  1045. 

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

  1047.     {

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

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

  1050. 

  1051.         {

  1052.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1053. 

  1054.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetProgram);

  1055.             fShmNonRtClientControl.writeInt(index);

  1056.             fShmNonRtClientControl.commitWrite();

  1057.         }

  1058. 

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

  1060.     }

  1061. 

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

  1063.     {

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

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

  1066. 

  1067.         {

  1068.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1069. 

  1070.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetMidiProgram);

  1071.             fShmNonRtClientControl.writeInt(index);

  1072.             fShmNonRtClientControl.commitWrite();

  1073.         }

  1074. 

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

  1076.     }

  1077. 

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

  1079.     {

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

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

  1082.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

  1083. 

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

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

  1086. 

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

  1088.         {

  1089.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1090. 

  1091.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPingOnOff);

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

  1093.             fShmNonRtClientControl.commitWrite();

  1094. 

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

  1096.             return;

  1097.         }

  1098. 

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

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

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

  1102. 

  1103.         {

  1104.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1105. 

  1106.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetCustomData);

  1107. 

  1108.             fShmNonRtClientControl.writeUInt(typeLen);

  1109.             fShmNonRtClientControl.writeCustomData(type, typeLen);

  1110. 

  1111.             fShmNonRtClientControl.writeUInt(keyLen);

  1112.             fShmNonRtClientControl.writeCustomData(key, keyLen);

  1113. 

  1114.             fShmNonRtClientControl.writeUInt(valueLen);

  1115.             fShmNonRtClientControl.writeCustomData(value, valueLen);

  1116. 

  1117.             fShmNonRtClientControl.commitWrite();

  1118.         }

  1119. 

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

  1121.     }

  1122. 

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

  1124.     {

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

  1126.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  1127.         CARLA_SAFE_ASSERT_RETURN(dataSize > 0,);

  1128. 

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

  1130. 

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

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

  1133. 

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

  1135. 

  1136.         filePath += CARLA_OS_SEP_STR ".CarlaChunk_";

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

  1138. 

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

  1140.         {

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

  1142. 

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

  1144. 

  1145.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1146. 

  1147.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetChunkDataFile);

  1148.             fShmNonRtClientControl.writeUInt(ulength);

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

  1150.             fShmNonRtClientControl.commitWrite();

  1151. 

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

  1153.         }

  1154. 

  1155.         // save data internally as well

  1156.         fInfo.chunk.resize(dataSize);

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

  1158. 

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

  1160.     }

  1161. 

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

  1163.     // Set ui stuff

  1164. 

  1165.     void showCustomUI(const bool yesNo) override

  1166.     {

  1167.         {

  1168.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1169. 

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

  1171.             fShmNonRtClientControl.commitWrite();

  1172.         }

  1173. 

  1174. #ifndef BUILD_BRIDGE

  1175.         if (yesNo)

  1176.         {

  1177.             pData->tryTransient();

  1178.         }

  1179.         else

  1180.         {

  1181.             pData->transientTryCounter = 0;

  1182.         }

  1183. #endif

  1184.     }

  1185. 

  1186.     void idle() override

  1187.     {

  1188.         if (fBridgeThread.isThreadRunning())

  1189.         {

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

  1191.                 setActive(false, true, true);

  1192. 

  1193.             {

  1194.                 const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1195. 

  1196.                 fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPing);

  1197.                 fShmNonRtClientControl.commitWrite();

  1198.             }

  1199. 

  1200.             try {

  1201.                 handleNonRtData();

  1202.             } CARLA_SAFE_EXCEPTION("handleNonRtData");

  1203.         }

  1204.         else if (fInitiated)

  1205.         {

  1206.             fTimedOut   = true;

  1207.             fTimedError = true;

  1208.             fInitiated  = false;

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

  1210.         }

  1211. 

  1212.         CarlaPlugin::idle();

  1213.     }

  1214. 

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

  1216.     // Plugin state

  1217. 

  1218.     void reload() override

  1219.     {

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

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

  1222. 

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

  1224. 

  1225.         // Safely disable plugin for reload

  1226.         const ScopedDisabler sd(this);

  1227. 

  1228.         bool needsCtrlIn, needsCtrlOut;

  1229.         needsCtrlIn = needsCtrlOut = false;

  1230. 

  1231.         if (fInfo.aIns > 0)

  1232.         {

  1233.             pData->audioIn.createNew(fInfo.aIns);

  1234.         }

  1235. 

  1236.         if (fInfo.aOuts > 0)

  1237.         {

  1238.             pData->audioOut.createNew(fInfo.aOuts);

  1239.             needsCtrlIn = true;

  1240.         }

  1241. 

  1242.         if (fInfo.cvIns > 0)

  1243.         {

  1244.             pData->cvIn.createNew(fInfo.cvIns);

  1245.         }

  1246. 

  1247.         if (fInfo.cvOuts > 0)

  1248.         {

  1249.             pData->cvOut.createNew(fInfo.cvOuts);

  1250.         }

  1251. 

  1252.         if (fInfo.mIns > 0)

  1253.             needsCtrlIn = true;

  1254. 

  1255.         if (fInfo.mOuts > 0)

  1256.             needsCtrlOut = true;

  1257. 

  1258.         const uint portNameSize(pData->engine->getMaxPortNameSize());

  1259.         CarlaString portName;

  1260. 

  1261.         // Audio Ins

  1262.         for (uint32_t j=0; j < fInfo.aIns; ++j)

  1263.         {

  1264.             portName.clear();

  1265. 

  1266.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1267.             {

  1268.                 portName  = pData->name;

  1269.                 portName += ":";

  1270.             }

  1271. 

  1272.             if (fInfo.aIns > 1)

  1273.             {

  1274.                 portName += "input_";

  1275.                 portName += CarlaString(j+1);

  1276.             }

  1277.             else

  1278.                 portName += "input";

  1279. 

  1280.             portName.truncate(portNameSize);

  1281. 

  1282.             pData->audioIn.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true);

  1283.             pData->audioIn.ports[j].rindex = j;

  1284.         }

  1285. 

  1286.         // Audio Outs

  1287.         for (uint32_t j=0; j < fInfo.aOuts; ++j)

  1288.         {

  1289.             portName.clear();

  1290. 

  1291.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1292.             {

  1293.                 portName  = pData->name;

  1294.                 portName += ":";

  1295.             }

  1296. 

  1297.             if (fInfo.aOuts > 1)

  1298.             {

  1299.                 portName += "output_";

  1300.                 portName += CarlaString(j+1);

  1301.             }

  1302.             else

  1303.                 portName += "output";

  1304. 

  1305.             portName.truncate(portNameSize);

  1306. 

  1307.             pData->audioOut.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false);

  1308.             pData->audioOut.ports[j].rindex = j;

  1309.         }

  1310. 

  1311.         // TODO - CV

  1312. 

  1313.         if (needsCtrlIn)

  1314.         {

  1315.             portName.clear();

  1316. 

  1317.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1318.             {

  1319.                 portName  = pData->name;

  1320.                 portName += ":";

  1321.             }

  1322. 

  1323.             portName += "event-in";

  1324.             portName.truncate(portNameSize);

  1325. 

  1326.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  1327.         }

  1328. 

  1329.         if (needsCtrlOut)

  1330.         {

  1331.             portName.clear();

  1332. 

  1333.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1334.             {

  1335.                 portName  = pData->name;

  1336.                 portName += ":";

  1337.             }

  1338. 

  1339.             portName += "event-out";

  1340.             portName.truncate(portNameSize);

  1341. 

  1342.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  1343.         }

  1344. 

  1345.         // extra plugin hints

  1346.         pData->extraHints = 0x0;

  1347. 

  1348.         if (fInfo.mIns > 0)

  1349.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  1350. 

  1351.         if (fInfo.mOuts > 0)

  1352.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_OUT;

  1353. 

  1354.         if (fInfo.aIns <= 2 && fInfo.aOuts <= 2 && (fInfo.aIns == fInfo.aOuts || fInfo.aIns == 0 || fInfo.aOuts == 0))

  1355.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1356. 

  1357.         bufferSizeChanged(pData->engine->getBufferSize());

  1358.         reloadPrograms(true);

  1359. 

  1360.         carla_debug("CarlaPluginBridge::reload() - end");

  1361.     }

  1362. 

  1363.     // -------------------------------------------------------------------

  1364.     // Plugin processing

  1365. 

  1366.     void activate() noexcept override

  1367.     {

  1368.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  1369. 

  1370.         {

  1371.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1372. 

  1373.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientActivate);

  1374.             fShmNonRtClientControl.commitWrite();

  1375.         }

  1376. 

  1377.         fTimedOut = false;

  1378. 

  1379.         try {

  1380.             waitForClient("activate", 2);

  1381.         } CARLA_SAFE_EXCEPTION("activate - waitForClient");

  1382.     }

  1383. 

  1384.     void deactivate() noexcept override

  1385.     {

  1386.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  1387. 

  1388.         {

  1389.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1390. 

  1391.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientDeactivate);

  1392.             fShmNonRtClientControl.commitWrite();

  1393.         }

  1394. 

  1395.         fTimedOut = false;

  1396. 

  1397.         try {

  1398.             waitForClient("deactivate", 2);

  1399.         } CARLA_SAFE_EXCEPTION("deactivate - waitForClient");

  1400.     }

  1401. 

  1402.     void process(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames) override

  1403.     {

  1404.         // --------------------------------------------------------------------------------------------------------

  1405.         // Check if active

  1406. 

  1407.         if (fTimedOut || fTimedError || ! pData->active)

  1408.         {

  1409.             // disable any output sound

  1410.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1411.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1412.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1413.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1414.             return;

  1415.         }

  1416. 

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

  1418.         // Check if needs reset

  1419. 

  1420.         if (pData->needsReset)

  1421.         {

  1422.             // TODO

  1423. 

  1424.             pData->needsReset = false;

  1425.         }

  1426. 

  1427.         // --------------------------------------------------------------------------------------------------------

  1428.         // Event Input

  1429. 

  1430.         if (pData->event.portIn != nullptr)

  1431.         {

  1432.             // ----------------------------------------------------------------------------------------------------

  1433.             // MIDI Input (External)

  1434. 

  1435.             if (pData->extNotes.mutex.tryLock())

  1436.             {

  1437.                 for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin(); it.valid(); it.next())

  1438.                 {

  1439.                     const ExternalMidiNote& note(it.getValue());

  1440. 

  1441.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1442. 

  1443.                     uint8_t data1, data2, data3;

  1444.                     data1 = uint8_t((note.velo > 0 ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF) | (note.channel & MIDI_CHANNEL_BIT));

  1445.                     data2 = note.note;

  1446.                     data3 = note.velo;

  1447. 

  1448.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1449.                     fShmRtClientControl.writeUInt(0); // time

  1450.                     fShmRtClientControl.writeByte(0); // port

  1451.                     fShmRtClientControl.writeByte(3); // size

  1452.                     fShmRtClientControl.writeByte(data1);

  1453.                     fShmRtClientControl.writeByte(data2);

  1454.                     fShmRtClientControl.writeByte(data3);

  1455.                     fShmRtClientControl.commitWrite();

  1456.                 }

  1457. 

  1458.                 pData->extNotes.data.clear();

  1459.                 pData->extNotes.mutex.unlock();

  1460. 

  1461.             } // End of MIDI Input (External)

  1462. 

  1463.             // ----------------------------------------------------------------------------------------------------

  1464.             // Event Input (System)

  1465. 

  1466. #ifndef BUILD_BRIDGE

  1467.             bool allNotesOffSent = false;

  1468. #endif

  1469. 

  1470.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1471.             {

  1472.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1473. 

  1474.                 // Control change

  1475.                 switch (event.type)

  1476.                 {

  1477.                 case kEngineEventTypeNull:

  1478.                     break;

  1479. 

  1480.                 case kEngineEventTypeControl: {

  1481.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1482. 

  1483.                     switch (ctrlEvent.type)

  1484.                     {

  1485.                     case kEngineControlEventTypeNull:

  1486.                         break;

  1487. 

  1488.                     case kEngineControlEventTypeParameter:

  1489. #ifndef BUILD_BRIDGE

  1490.                         // Control backend stuff

  1491.                         if (event.channel == pData->ctrlChannel)

  1492.                         {

  1493.                             float value;

  1494. 

  1495.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1496.                             {

  1497.                                 value = ctrlEvent.value;

  1498.                                 setDryWet(value, false, false);

  1499.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1500.                                 break;

  1501.                             }

  1502. 

  1503.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1504.                             {

  1505.                                 value = ctrlEvent.value*127.0f/100.0f;

  1506.                                 setVolume(value, false, false);

  1507.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1508.                                 break;

  1509.                             }

  1510. 

  1511.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1512.                             {

  1513.                                 float left, right;

  1514.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1515. 

  1516.                                 if (value < 0.0f)

  1517.                                 {

  1518.                                     left  = -1.0f;

  1519.                                     right = (value*2.0f)+1.0f;

  1520.                                 }

  1521.                                 else if (value > 0.0f)

  1522.                                 {

  1523.                                     left  = (value*2.0f)-1.0f;

  1524.                                     right = 1.0f;

  1525.                                 }

  1526.                                 else

  1527.                                 {

  1528.                                     left  = -1.0f;

  1529.                                     right = 1.0f;

  1530.                                 }

  1531. 

  1532.                                 setBalanceLeft(left, false, false);

  1533.                                 setBalanceRight(right, false, false);

  1534.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1535.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1536.                                 break;

  1537.                             }

  1538.                         }

  1539. #endif

  1540.                         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventParameter);

  1541.                         fShmRtClientControl.writeUInt(event.time);

  1542.                         fShmRtClientControl.writeByte(event.channel);

  1543.                         fShmRtClientControl.writeUShort(event.ctrl.param);

  1544.                         fShmRtClientControl.writeFloat(event.ctrl.value);

  1545.                         fShmRtClientControl.commitWrite();

  1546.                         break;

  1547. 

  1548.                     case kEngineControlEventTypeMidiBank:

  1549.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1550.                         {

  1551.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiBank);

  1552.                             fShmRtClientControl.writeUInt(event.time);

  1553.                             fShmRtClientControl.writeByte(event.channel);

  1554.                             fShmRtClientControl.writeUShort(event.ctrl.param);

  1555.                             fShmRtClientControl.commitWrite();

  1556.                         }

  1557.                         break;

  1558. 

  1559.                     case kEngineControlEventTypeMidiProgram:

  1560.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1561.                         {

  1562.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiProgram);

  1563.                             fShmRtClientControl.writeUInt(event.time);

  1564.                             fShmRtClientControl.writeByte(event.channel);

  1565.                             fShmRtClientControl.writeUShort(event.ctrl.param);

  1566.                             fShmRtClientControl.commitWrite();

  1567.                         }

  1568.                         break;

  1569. 

  1570.                     case kEngineControlEventTypeAllSoundOff:

  1571.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1572.                         {

  1573.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllSoundOff);

  1574.                             fShmRtClientControl.writeUInt(event.time);

  1575.                             fShmRtClientControl.writeByte(event.channel);

  1576.                             fShmRtClientControl.commitWrite();

  1577.                         }

  1578.                         break;

  1579. 

  1580.                     case kEngineControlEventTypeAllNotesOff:

  1581.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1582.                         {

  1583. #ifndef BUILD_BRIDGE

  1584.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1585.                             {

  1586.                                 allNotesOffSent = true;

  1587.                                 sendMidiAllNotesOffToCallback();

  1588.                             }

  1589. #endif

  1590. 

  1591.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllNotesOff);

  1592.                             fShmRtClientControl.writeUInt(event.time);

  1593.                             fShmRtClientControl.writeByte(event.channel);

  1594.                             fShmRtClientControl.commitWrite();

  1595.                         }

  1596.                         break;

  1597.                     } // switch (ctrlEvent.type)

  1598.                     break;

  1599.                 } // case kEngineEventTypeControl

  1600. 

  1601.                 case kEngineEventTypeMidi: {

  1602.                     const EngineMidiEvent& midiEvent(event.midi);

  1603. 

  1604.                     if (midiEvent.size == 0 || midiEvent.size >= MAX_MIDI_VALUE)

  1605.                         continue;

  1606. 

  1607.                     const uint8_t* const midiData(midiEvent.size > EngineMidiEvent::kDataSize ? midiEvent.dataExt : midiEvent.data);

  1608. 

  1609.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiData));

  1610. 

  1611.                     if (status == MIDI_STATUS_CHANNEL_PRESSURE && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1612.                         continue;

  1613.                     if (status == MIDI_STATUS_CONTROL_CHANGE && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1614.                         continue;

  1615.                     if (status == MIDI_STATUS_POLYPHONIC_AFTERTOUCH && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1616.                         continue;

  1617.                     if (status == MIDI_STATUS_PITCH_WHEEL_CONTROL && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1618.                         continue;

  1619. 

  1620.                     // Fix bad note-off

  1621.                     if (status == MIDI_STATUS_NOTE_ON && midiData[2] == 0)

  1622.                         status = MIDI_STATUS_NOTE_OFF;

  1623. 

  1624.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1625.                     fShmRtClientControl.writeUInt(event.time);

  1626.                     fShmRtClientControl.writeByte(midiEvent.port);

  1627.                     fShmRtClientControl.writeByte(midiEvent.size);

  1628. 

  1629.                     fShmRtClientControl.writeByte(uint8_t(midiData[0] | (event.channel & MIDI_CHANNEL_BIT)));

  1630. 

  1631.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1632.                         fShmRtClientControl.writeByte(midiData[j]);

  1633. 

  1634.                     fShmRtClientControl.commitWrite();

  1635. 

  1636.                     if (status == MIDI_STATUS_NOTE_ON)

  1637.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, midiData[1], midiData[2]);

  1638.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1639.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, midiData[1], 0.0f);

  1640.                 } break;

  1641.                 }

  1642.             }

  1643. 

  1644.             pData->postRtEvents.trySplice();

  1645. 

  1646.         } // End of Event Input

  1647. 

  1648.         if (! processSingle(audioIn, audioOut, cvIn, cvOut, frames))

  1649.             return;

  1650. 

  1651.         // --------------------------------------------------------------------------------------------------------

  1652.         // Control and MIDI Output

  1653. 

  1654.         if (pData->event.portOut != nullptr)

  1655.         {

  1656.             float value;

  1657. 

  1658.             for (uint32_t k=0; k < pData->param.count; ++k)

  1659.             {

  1660.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1661.                     continue;

  1662. 

  1663.                 if (pData->param.data[k].midiCC > 0)

  1664.                 {

  1665.                     value = pData->param.ranges[k].getNormalizedValue(fParams[k].value);

  1666.                     pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), value);

  1667.                 }

  1668.             }

  1669. 

  1670.             uint8_t size;

  1671.             uint32_t time;

  1672.             const uint8_t* midiData(fShmRtClientControl.data->midiOut);

  1673. 

  1674.             for (std::size_t read=0; read<kBridgeRtClientDataMidiOutSize;)

  1675.             {

  1676.                 size = *midiData;

  1677. 

  1678.                 if (size == 0)

  1679.                     break;

  1680. 

  1681.                 // advance 8 bits (1 byte)

  1682.                 midiData = midiData + 1;

  1683. 

  1684.                 // get time as 32bit

  1685.                 time = *(const uint32_t*)midiData;

  1686. 

  1687.                 // advance 32 bits (4 bytes)

  1688.                 midiData = midiData + 4;

  1689. 

  1690.                 // store midi data advancing as needed

  1691.                 uint8_t data[size];

  1692. 

  1693.                 for (uint8_t j=0; j<size; ++j)

  1694.                     data[j] = *midiData++;

  1695. 

  1696.                 pData->event.portOut->writeMidiEvent(time, size, data);

  1697. 

  1698.                 read += 1U /* size*/ + 4U /* time */ + size;

  1699.             }

  1700. 

  1701.         } // End of Control and MIDI Output

  1702.     }

  1703. 

  1704.     bool processSingle(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames)

  1705.     {

  1706.         CARLA_SAFE_ASSERT_RETURN(! fTimedError, false);

  1707.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1708. 

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

  1710.         {

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

  1712.         }

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

  1714.         {

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

  1716.         }

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

  1718.         {

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

  1720.         }

  1721.         if (pData->cvOut.count > 0)

  1722.         {

  1723.             CARLA_SAFE_ASSERT_RETURN(cvOut != nullptr, false);

  1724.         }

  1725. 

  1726.         // --------------------------------------------------------------------------------------------------------

  1727.         // Try lock, silence otherwise

  1728. 

  1729.         if (pData->engine->isOffline())

  1730.         {

  1731.             pData->singleMutex.lock();

  1732.         }

  1733.         else if (! pData->singleMutex.tryLock())

  1734.         {

  1735.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1736.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1737.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1738.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1739.             return false;

  1740.         }

  1741. 

  1742.         // --------------------------------------------------------------------------------------------------------

  1743.         // Reset audio buffers

  1744. 

  1745.         for (uint32_t i=0; i < fInfo.aIns; ++i)

  1746.             FloatVectorOperations::copy(fShmAudioPool.data + (i * frames), audioIn[i], static_cast<int>(frames));

  1747. 

  1748.         // --------------------------------------------------------------------------------------------------------

  1749.         // TimeInfo

  1750. 

  1751.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1752.         BridgeTimeInfo& bridgeTimeInfo(fShmRtClientControl.data->timeInfo);

  1753. 

  1754.         bridgeTimeInfo.playing = timeInfo.playing;

  1755.         bridgeTimeInfo.frame   = timeInfo.frame;

  1756.         bridgeTimeInfo.usecs   = timeInfo.usecs;

  1757.         bridgeTimeInfo.valid   = timeInfo.valid;

  1758. 

  1759.         if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1760.         {

  1761.             bridgeTimeInfo.bar  = timeInfo.bbt.bar;

  1762.             bridgeTimeInfo.beat = timeInfo.bbt.beat;

  1763.             bridgeTimeInfo.tick = timeInfo.bbt.tick;

  1764. 

  1765.             bridgeTimeInfo.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1766.             bridgeTimeInfo.beatType    = timeInfo.bbt.beatType;

  1767. 

  1768.             bridgeTimeInfo.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1769.             bridgeTimeInfo.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1770.             bridgeTimeInfo.barStartTick   = timeInfo.bbt.barStartTick;

  1771.         }

  1772. 

  1773.         // --------------------------------------------------------------------------------------------------------

  1774.         // Run plugin

  1775. 

  1776.         {

  1777.             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientProcess);

  1778.             fShmRtClientControl.commitWrite();

  1779.         }

  1780. 

  1781.         waitForClient("process", 1);

  1782. 

  1783.         if (fTimedOut)

  1784.         {

  1785.             pData->singleMutex.unlock();

  1786.             return false;

  1787.         }

  1788. 

  1789.         for (uint32_t i=0; i < fInfo.aOuts; ++i)

  1790.             FloatVectorOperations::copy(audioOut[i], fShmAudioPool.data + ((i + fInfo.aIns) * frames), static_cast<int>(frames));

  1791. 

  1792. #ifndef BUILD_BRIDGE

  1793.         // --------------------------------------------------------------------------------------------------------

  1794.         // Post-processing (dry/wet, volume and balance)

  1795. 

  1796.         {

  1797.             const bool doVolume  = (pData->hints & PLUGIN_CAN_VOLUME) != 0 && ! carla_compareFloats(pData->postProc.volume, 1.0f);

  1798.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && ! carla_compareFloats(pData->postProc.dryWet, 1.0f);

  1799.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_compareFloats(pData->postProc.balanceLeft, -1.0f) && carla_compareFloats(pData->postProc.balanceRight, 1.0f));

  1800. 

  1801.             bool isPair;

  1802.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1803. 

  1804.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1805.             {

  1806.                 // Dry/Wet

  1807.                 if (doDryWet)

  1808.                 {

  1809.                     for (uint32_t k=0; k < frames; ++k)

  1810.                     {

  1811.                         bufValue        = audioIn[(pData->audioIn.count == 1) ? 0 : i][k];

  1812.                         audioOut[i][k] = (audioOut[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1813.                     }

  1814.                 }

  1815. 

  1816.                 // Balance

  1817.                 if (doBalance)

  1818.                 {

  1819.                     isPair = (i % 2 == 0);

  1820. 

  1821.                     if (isPair)

  1822.                     {

  1823.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1824.                         FloatVectorOperations::copy(oldBufLeft, audioOut[i], static_cast<int>(frames));

  1825.                     }

  1826. 

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

  1828.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1829. 

  1830.                     for (uint32_t k=0; k < frames; ++k)

  1831.                     {

  1832.                         if (isPair)

  1833.                         {

  1834.                             // left

  1835.                             audioOut[i][k]  = oldBufLeft[k]     * (1.0f - balRangeL);

  1836.                             audioOut[i][k] += audioOut[i+1][k] * (1.0f - balRangeR);

  1837.                         }

  1838.                         else

  1839.                         {

  1840.                             // right

  1841.                             audioOut[i][k]  = audioOut[i][k] * balRangeR;

  1842.                             audioOut[i][k] += oldBufLeft[k]   * balRangeL;

  1843.                         }

  1844.                     }

  1845.                 }

  1846. 

  1847.                 // Volume (and buffer copy)

  1848.                 if (doVolume)

  1849.                 {

  1850.                     for (uint32_t k=0; k < frames; ++k)

  1851.                         audioOut[i][k] *= pData->postProc.volume;

  1852.                 }

  1853.             }

  1854. 

  1855.         } // End of Post-processing

  1856. 

  1857. #endif // BUILD_BRIDGE

  1858. 

  1859.         // --------------------------------------------------------------------------------------------------------

  1860. 

  1861.         pData->singleMutex.unlock();

  1862.         return true;

  1863.     }

  1864. 

  1865.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1866.     {

  1867.         resizeAudioPool(newBufferSize);

  1868. 

  1869.         {

  1870.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1871.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  1872.             fShmNonRtClientControl.writeUInt(newBufferSize);

  1873.             fShmNonRtClientControl.commitWrite();

  1874.         }

  1875. 

  1876.         waitForClient("buffersize", 1);

  1877.     }

  1878. 

  1879.     void sampleRateChanged(const double newSampleRate) override

  1880.     {

  1881.         {

  1882.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1883.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  1884.             fShmNonRtClientControl.writeDouble(newSampleRate);

  1885.             fShmNonRtClientControl.commitWrite();

  1886.         }

  1887. 

  1888.         waitForClient("samplerate", 1);

  1889.     }

  1890. 

  1891.     void offlineModeChanged(const bool isOffline) override

  1892.     {

  1893.         {

  1894.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1895.             fShmNonRtClientControl.writeOpcode(isOffline ? kPluginBridgeNonRtClientSetOffline : kPluginBridgeNonRtClientSetOnline);

  1896.             fShmNonRtClientControl.commitWrite();

  1897.         }

  1898. 

  1899.         waitForClient("offline", 1);

  1900.     }

  1901. 

  1902.     // -------------------------------------------------------------------

  1903.     // Plugin buffers

  1904. 

  1905.     void clearBuffers() noexcept override

  1906.     {

  1907.         if (fParams != nullptr)

  1908.         {

  1909.             delete[] fParams;

  1910.             fParams = nullptr;

  1911.         }

  1912. 

  1913.         CarlaPlugin::clearBuffers();

  1914.     }

  1915. 

  1916.     // -------------------------------------------------------------------

  1917.     // Post-poned UI Stuff

  1918. 

  1919.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  1920.     {

  1921.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  1922. 

  1923.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1924. 

  1925.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiParameterChange);

  1926.         fShmNonRtClientControl.writeUInt(index);

  1927.         fShmNonRtClientControl.writeFloat(value);

  1928.         fShmNonRtClientControl.commitWrite();

  1929.     }

  1930. 

  1931.     void uiProgramChange(const uint32_t index) noexcept override

  1932.     {

  1933.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1934. 

  1935.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1936. 

  1937.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiProgramChange);

  1938.         fShmNonRtClientControl.writeUInt(index);

  1939.         fShmNonRtClientControl.commitWrite();

  1940.     }

  1941. 

  1942.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1943.     {

  1944.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1945. 

  1946.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1947. 

  1948.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiMidiProgramChange);

  1949.         fShmNonRtClientControl.writeUInt(index);

  1950.         fShmNonRtClientControl.commitWrite();

  1951.     }

  1952. 

  1953.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1954.     {

  1955.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1956.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1957.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  1958. 

  1959.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1960. 

  1961.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOn);

  1962.         fShmNonRtClientControl.writeByte(channel);

  1963.         fShmNonRtClientControl.writeByte(note);

  1964.         fShmNonRtClientControl.writeByte(velo);

  1965.         fShmNonRtClientControl.commitWrite();

  1966.     }

  1967. 

  1968.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  1969.     {

  1970.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1971.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1972. 

  1973.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1974. 

  1975.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOff);

  1976.         fShmNonRtClientControl.writeByte(channel);

  1977.         fShmNonRtClientControl.writeByte(note);

  1978.         fShmNonRtClientControl.commitWrite();

  1979.     }

  1980. 

  1981.     // -------------------------------------------------------------------

  1982. 

  1983.     void handleNonRtData()

  1984.     {

  1985.         for (; fShmNonRtServerControl.isDataAvailableForReading();)

  1986.         {

  1987.             const PluginBridgeNonRtServerOpcode opcode(fShmNonRtServerControl.readOpcode());

  1988. #ifdef DEBUG

  1989.             if (opcode != kPluginBridgeNonRtServerPong) {

  1990.                 carla_debug("CarlaPluginBridge::handleNonRtData() - got opcode: %s", PluginBridgeNonRtServerOpcode2str(opcode));

  1991.             }

  1992. #endif

  1993.             if (opcode != kPluginBridgeNonRtServerNull && fLastPongTime > 0)

  1994.                 fLastPongTime = Time::currentTimeMillis();

  1995. 

  1996.             switch (opcode)

  1997.             {

  1998.             case kPluginBridgeNonRtServerNull:

  1999.             case kPluginBridgeNonRtServerPong:

  2000.                 break;

  2001. 

  2002.             case kPluginBridgeNonRtServerPluginInfo1: {

  2003.                 // uint/category, uint/hints, uint/optionsAvailable, uint/optionsEnabled, long/uniqueId

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

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

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

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

  2008.                 const  int64_t uniqueId = fShmNonRtServerControl.readLong();

  2009. 

  2010.                 CARLA_SAFE_ASSERT_INT2(fUniqueId == uniqueId, fUniqueId, uniqueId);

  2011. 

  2012.                 pData->hints   = hints | PLUGIN_IS_BRIDGE;

  2013.                 pData->options = optionEn;

  2014. 

  2015.                 fInfo.category = static_cast<PluginCategory>(category);

  2016.                 fInfo.optionsAvailable = optionAv;

  2017.             }   break;

  2018. 

  2019.             case kPluginBridgeNonRtServerPluginInfo2: {

  2020.                 // uint/size, str[] (realName), uint/size, str[] (label), uint/size, str[] (maker), uint/size, str[] (copyright)

  2021. 

  2022.                 // realName

  2023.                 const uint32_t realNameSize(fShmNonRtServerControl.readUInt());

  2024.                 char realName[realNameSize+1];

  2025.                 carla_zeroChar(realName, realNameSize+1);

  2026.                 fShmNonRtServerControl.readCustomData(realName, realNameSize);

  2027. 

  2028.                 // label

  2029.                 const uint32_t labelSize(fShmNonRtServerControl.readUInt());

  2030.                 char label[labelSize+1];

  2031.                 carla_zeroChar(label, labelSize+1);

  2032.                 fShmNonRtServerControl.readCustomData(label, labelSize);

  2033. 

  2034.                 // maker

  2035.                 const uint32_t makerSize(fShmNonRtServerControl.readUInt());

  2036.                 char maker[makerSize+1];

  2037.                 carla_zeroChar(maker, makerSize+1);

  2038.                 fShmNonRtServerControl.readCustomData(maker, makerSize);

  2039. 

  2040.                 // copyright

  2041.                 const uint32_t copyrightSize(fShmNonRtServerControl.readUInt());

  2042.                 char copyright[copyrightSize+1];

  2043.                 carla_zeroChar(copyright, copyrightSize+1);

  2044.                 fShmNonRtServerControl.readCustomData(copyright, copyrightSize);

  2045. 

  2046.                 fInfo.name  = realName;

  2047.                 fInfo.label = label;

  2048.                 fInfo.maker = maker;

  2049.                 fInfo.copyright = copyright;

  2050. 

  2051.                 if (pData->name == nullptr)

  2052.                     pData->name = pData->engine->getUniquePluginName(realName);

  2053.             }   break;

  2054. 

  2055.             case kPluginBridgeNonRtServerAudioCount: {

  2056.                 // uint/ins, uint/outs

  2057.                 fInfo.aIns  = fShmNonRtServerControl.readUInt();

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

  2059.             }   break;

  2060. 

  2061.             case kPluginBridgeNonRtServerMidiCount: {

  2062.                 // uint/ins, uint/outs

  2063.                 fInfo.mIns  = fShmNonRtServerControl.readUInt();

  2064.                 fInfo.mOuts = fShmNonRtServerControl.readUInt();

  2065.             }   break;

  2066. 

  2067.             case kPluginBridgeNonRtServerParameterCount: {

  2068.                 // uint/count

  2069.                 const uint32_t count = fShmNonRtServerControl.readUInt();

  2070. 

  2071.                 // delete old data

  2072.                 pData->param.clear();

  2073. 

  2074.                 if (fParams != nullptr)

  2075.                 {

  2076.                     delete[] fParams;

  2077.                     fParams = nullptr;

  2078.                 }

  2079. 

  2080.                 if (count > 0)

  2081.                 {

  2082.                     pData->param.createNew(count, false);

  2083.                     fParams = new BridgeParamInfo[count];

  2084. 

  2085.                     // we might not receive all parameter data, so ensure range max is not 0

  2086.                     for (uint32_t i=0; i<count; ++i)

  2087.                     {

  2088.                         pData->param.ranges[i].def = 0.0f;

  2089.                         pData->param.ranges[i].min = 0.0f;

  2090.                         pData->param.ranges[i].max = 1.0f;

  2091.                         pData->param.ranges[i].step = 0.001f;

  2092.                         pData->param.ranges[i].stepSmall = 0.0001f;

  2093.                         pData->param.ranges[i].stepLarge = 0.1f;

  2094.                     }

  2095.                 }

  2096.             }   break;

  2097. 

  2098.             case kPluginBridgeNonRtServerProgramCount: {

  2099.                 // uint/count

  2100.                 pData->prog.clear();

  2101. 

  2102.                 if (const uint32_t count = fShmNonRtServerControl.readUInt())

  2103.                     pData->prog.createNew(static_cast<uint32_t>(count));

  2104. 

  2105.             }   break;

  2106. 

  2107.             case kPluginBridgeNonRtServerMidiProgramCount: {

  2108.                 // uint/count

  2109.                 pData->midiprog.clear();

  2110. 

  2111.                 if (const uint32_t count = fShmNonRtServerControl.readUInt())

  2112.                     pData->midiprog.createNew(static_cast<uint32_t>(count));

  2113. 

  2114.             }   break;

  2115. 

  2116.             case kPluginBridgeNonRtServerParameterData1: {

  2117.                 // uint/index, int/rindex, uint/type, uint/hints, int/cc

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

  2119.                 const  int32_t rindex = fShmNonRtServerControl.readInt();

  2120.                 const uint32_t type   = fShmNonRtServerControl.readUInt();

  2121.                 const uint32_t hints  = fShmNonRtServerControl.readUInt();

  2122.                 const  int16_t midiCC = fShmNonRtServerControl.readShort();

  2123. 

  2124.                 CARLA_SAFE_ASSERT_BREAK(midiCC >= -1 && midiCC < MAX_MIDI_CONTROL);

  2125.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2126. 

  2127.                 if (index < pData->param.count)

  2128.                 {

  2129.                     pData->param.data[index].type   = static_cast<ParameterType>(type);

  2130.                     pData->param.data[index].index  = static_cast<int32_t>(index);

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

  2132.                     pData->param.data[index].hints  = hints;

  2133.                     pData->param.data[index].midiCC = midiCC;

  2134.                 }

  2135.             }   break;

  2136. 

  2137.             case kPluginBridgeNonRtServerParameterData2: {

  2138.                 // uint/index, uint/size, str[] (name), uint/size, str[] (unit)

  2139.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2140. 

  2141.                 // name

  2142.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2143.                 char name[nameSize+1];

  2144.                 carla_zeroChar(name, nameSize+1);

  2145.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2146. 

  2147.                 // symbol

  2148.                 const uint32_t symbolSize(fShmNonRtServerControl.readUInt());

  2149.                 char symbol[symbolSize+1];

  2150.                 carla_zeroChar(symbol, symbolSize+1);

  2151.                 fShmNonRtServerControl.readCustomData(symbol, symbolSize);

  2152. 

  2153.                 // unit

  2154.                 const uint32_t unitSize(fShmNonRtServerControl.readUInt());

  2155.                 char unit[unitSize+1];

  2156.                 carla_zeroChar(unit, unitSize+1);

  2157.                 fShmNonRtServerControl.readCustomData(unit, unitSize);

  2158. 

  2159.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2160. 

  2161.                 if (index < pData->param.count)

  2162.                 {

  2163.                     fParams[index].name   = name;

  2164.                     fParams[index].symbol = symbol;

  2165.                     fParams[index].unit   = unit;

  2166.                 }

  2167.             }   break;

  2168. 

  2169.             case kPluginBridgeNonRtServerParameterRanges: {

  2170.                 // uint/index, float/def, float/min, float/max, float/step, float/stepSmall, float/stepLarge

  2171.                 const uint32_t index = fShmNonRtServerControl.readUInt();

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

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

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

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

  2176.                 const float stepSmall = fShmNonRtServerControl.readFloat();

  2177.                 const float stepLarge = fShmNonRtServerControl.readFloat();

  2178. 

  2179.                 CARLA_SAFE_ASSERT_BREAK(min < max);

  2180.                 CARLA_SAFE_ASSERT_BREAK(def >= min);

  2181.                 CARLA_SAFE_ASSERT_BREAK(def <= max);

  2182.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2183. 

  2184.                 if (index < pData->param.count)

  2185.                 {

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

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

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

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

  2190.                     pData->param.ranges[index].stepSmall = stepSmall;

  2191.                     pData->param.ranges[index].stepLarge = stepLarge;

  2192.                 }

  2193.             }   break;

  2194. 

  2195.             case kPluginBridgeNonRtServerParameterValue: {

  2196.                 // uint/index, float/value

  2197.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2198.                 const float    value = fShmNonRtServerControl.readFloat();

  2199. 

  2200.                 if (index < pData->param.count)

  2201.                 {

  2202.                     const float fixedValue(pData->param.getFixedValue(index, value));

  2203.                     fParams[index].value = fixedValue;

  2204. 

  2205.                     CarlaPlugin::setParameterValue(index, fixedValue, false, true, true);

  2206.                 }

  2207.             }   break;

  2208. 

  2209.             case kPluginBridgeNonRtServerParameterValue2: {

  2210.                 // uint/index, float/value

  2211.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2212.                 const float    value = fShmNonRtServerControl.readFloat();

  2213. 

  2214.                 if (index < pData->param.count)

  2215.                 {

  2216.                     const float fixedValue(pData->param.getFixedValue(index, value));

  2217.                     fParams[index].value = fixedValue;

  2218.                 }

  2219.             }   break;

  2220. 

  2221.             case kPluginBridgeNonRtServerDefaultValue: {

  2222.                 // uint/index, float/value

  2223.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2224.                 const float    value = fShmNonRtServerControl.readFloat();

  2225. 

  2226.                 if (index < pData->param.count)

  2227.                     pData->param.ranges[index].def = value;

  2228.             }   break;

  2229. 

  2230.             case kPluginBridgeNonRtServerCurrentProgram: {

  2231.                 // int/index

  2232.                 const int32_t index = fShmNonRtServerControl.readInt();

  2233. 

  2234.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

  2235.                 CARLA_SAFE_ASSERT_INT2(index < static_cast<int32_t>(pData->prog.count), index, pData->prog.count);

  2236. 

  2237.                 CarlaPlugin::setProgram(index, false, true, true);

  2238.             }   break;

  2239. 

  2240.             case kPluginBridgeNonRtServerCurrentMidiProgram: {

  2241.                 // int/index

  2242.                 const int32_t index = fShmNonRtServerControl.readInt();

  2243. 

  2244.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

  2245.                 CARLA_SAFE_ASSERT_INT2(index < static_cast<int32_t>(pData->midiprog.count), index, pData->midiprog.count);

  2246. 

  2247.                 CarlaPlugin::setMidiProgram(index, false, true, true);

  2248.             }   break;

  2249. 

  2250.             case kPluginBridgeNonRtServerProgramName: {

  2251.                 // uint/index, uint/size, str[] (name)

  2252.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2253. 

  2254.                 // name

  2255.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2256.                 char name[nameSize+1];

  2257.                 carla_zeroChar(name, nameSize+1);

  2258.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2259. 

  2260.                 CARLA_SAFE_ASSERT_INT2(index < pData->prog.count, index, pData->prog.count);

  2261. 

  2262.                 if (index < pData->prog.count)

  2263.                 {

  2264.                     if (pData->prog.names[index] != nullptr)

  2265.                         delete[] pData->prog.names[index];

  2266.                     pData->prog.names[index] = carla_strdup(name);

  2267.                 }

  2268.             }   break;

  2269. 

  2270.             case kPluginBridgeNonRtServerMidiProgramData: {

  2271.                 // uint/index, uint/bank, uint/program, uint/size, str[] (name)

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

  2273.                 const uint32_t bank    = fShmNonRtServerControl.readUInt();

  2274.                 const uint32_t program = fShmNonRtServerControl.readUInt();

  2275. 

  2276.                 // name

  2277.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2278.                 char name[nameSize+1];

  2279.                 carla_zeroChar(name, nameSize+1);

  2280.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2281. 

  2282.                 CARLA_SAFE_ASSERT_INT2(index < pData->midiprog.count, index, pData->midiprog.count);

  2283. 

  2284.                 if (index < pData->midiprog.count)

  2285.                 {

  2286.                     if (pData->midiprog.data[index].name != nullptr)

  2287.                         delete[] pData->midiprog.data[index].name;

  2288.                     pData->midiprog.data[index].bank    = bank;

  2289.                     pData->midiprog.data[index].program = program;

  2290.                     pData->midiprog.data[index].name    = carla_strdup(name);

  2291.                 }

  2292.             }   break;

  2293. 

  2294.             case kPluginBridgeNonRtServerSetCustomData: {

  2295.                 // uint/size, str[], uint/size, str[], uint/size, str[]

  2296. 

  2297.                 // type

  2298.                 const uint32_t typeSize(fShmNonRtServerControl.readUInt());

  2299.                 char type[typeSize+1];

  2300.                 carla_zeroChar(type, typeSize+1);

  2301.                 fShmNonRtServerControl.readCustomData(type, typeSize);

  2302. 

  2303.                 // key

  2304.                 const uint32_t keySize(fShmNonRtServerControl.readUInt());

  2305.                 char key[keySize+1];

  2306.                 carla_zeroChar(key, keySize+1);

  2307.                 fShmNonRtServerControl.readCustomData(key, keySize);

  2308. 

  2309.                 // value

  2310.                 const uint32_t valueSize(fShmNonRtServerControl.readUInt());

  2311.                 char value[valueSize+1];

  2312.                 carla_zeroChar(value, valueSize+1);

  2313.                 fShmNonRtServerControl.readCustomData(value, valueSize);

  2314. 

  2315.                 CarlaPlugin::setCustomData(type, key, value, false);

  2316.             }   break;

  2317. 

  2318.             case kPluginBridgeNonRtServerSetChunkDataFile: {

  2319.                 // uint/size, str[] (filename)

  2320. 

  2321.                 // chunkFilePath

  2322.                 const uint32_t chunkFilePathSize(fShmNonRtServerControl.readUInt());

  2323.                 char chunkFilePath[chunkFilePathSize+1];

  2324.                 carla_zeroChar(chunkFilePath, chunkFilePathSize+1);

  2325.                 fShmNonRtServerControl.readCustomData(chunkFilePath, chunkFilePathSize);

  2326. 

  2327.                 String realChunkFilePath(chunkFilePath);

  2328.                 carla_stdout("chunk save path BEFORE => %s", realChunkFilePath.toRawUTF8());

  2329. 

  2330. #ifndef CARLA_OS_WIN

  2331.                 // Using Wine, fix temp dir

  2332.                 if (fBinaryType == BINARY_WIN32 || fBinaryType == BINARY_WIN64)

  2333.                 {

  2334.                     // Get WINEPREFIX

  2335.                     String wineDir;

  2336.                     if (const char* const WINEPREFIX = getenv("WINEPREFIX"))

  2337.                         wineDir = String(WINEPREFIX);

  2338.                     else

  2339.                         wineDir = File::getSpecialLocation(File::userHomeDirectory).getFullPathName() + "/.wine";

  2340. 

  2341.                     const StringArray driveLetterSplit(StringArray::fromTokens(realChunkFilePath, ":/", ""));

  2342. 

  2343.                     realChunkFilePath  = wineDir;

  2344.                     realChunkFilePath += "/drive_";

  2345.                     realChunkFilePath += driveLetterSplit[0].toLowerCase();

  2346.                     realChunkFilePath += "/";

  2347.                     realChunkFilePath += driveLetterSplit[1];

  2348. 

  2349.                     realChunkFilePath  = realChunkFilePath.replace("\\", "/");

  2350.                     carla_stdout("chunk save path AFTER => %s", realChunkFilePath.toRawUTF8());

  2351.                 }

  2352. #endif

  2353. 

  2354.                 File chunkFile(realChunkFilePath);

  2355. 

  2356.                 if (chunkFile.existsAsFile())

  2357.                 {

  2358.                     fInfo.chunk = carla_getChunkFromBase64String(chunkFile.loadFileAsString().toRawUTF8());

  2359.                     chunkFile.deleteFile();

  2360.                     carla_stderr("chunk data final");

  2361.                 }

  2362.             }   break;

  2363. 

  2364.             case kPluginBridgeNonRtServerSetLatency: {

  2365.                 // uint

  2366.             }   break;

  2367. 

  2368.             case kPluginBridgeNonRtServerReady:

  2369.                 fInitiated = true;

  2370.                 break;

  2371. 

  2372.             case kPluginBridgeNonRtServerSaved:

  2373.                 fSaved = true;

  2374.                 break;

  2375. 

  2376.             case kPluginBridgeNonRtServerUiClosed:

  2377.                 pData->transientTryCounter = 0;

  2378.                 pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2379.                 break;

  2380. 

  2381.             case kPluginBridgeNonRtServerError: {

  2382.                 // error

  2383.                 const uint32_t errorSize(fShmNonRtServerControl.readUInt());

  2384.                 char error[errorSize+1];

  2385.                 carla_zeroChar(error, errorSize+1);

  2386.                 fShmNonRtServerControl.readCustomData(error, errorSize);

  2387. 

  2388.                 if (fInitiated)

  2389.                 {

  2390.                     pData->engine->callback(ENGINE_CALLBACK_ERROR, pData->id, 0, 0, 0.0f, error);

  2391. 

  2392.                     // just in case

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

  2394.                     fInitError = true;

  2395.                 }

  2396.                 else

  2397.                 {

  2398.                     pData->engine->setLastError(error);

  2399.                     fInitError = true;

  2400.                     fInitiated = true;

  2401.                 }

  2402.             }   break;

  2403.             }

  2404.         }

  2405.     }

  2406. 

  2407.     // -------------------------------------------------------------------

  2408. 

  2409.     uintptr_t getUiBridgeProcessId() const noexcept override

  2410.     {

  2411.         return fBridgeThread.getProcessPID();

  2412.     }

  2413. 

  2414.     const void* getExtraStuff() const noexcept override

  2415.     {

  2416.         return fBridgeBinary.isNotEmpty() ? fBridgeBinary.buffer() : nullptr;

  2417.     }

  2418. 

  2419.     // -------------------------------------------------------------------

  2420. 

  2421.     bool init(const char* const filename, const char* const name, const char* const label, const int64_t uniqueId, const char* const bridgeBinary)

  2422.     {

  2423.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2424. 

  2425.         // ---------------------------------------------------------------

  2426.         // first checks

  2427. 

  2428.         if (pData->client != nullptr)

  2429.         {

  2430.             pData->engine->setLastError("Plugin client is already registered");

  2431.             return false;

  2432.         }

  2433. 

  2434.         if (bridgeBinary == nullptr || bridgeBinary[0] == '\0')

  2435.         {

  2436.             pData->engine->setLastError("null bridge binary");

  2437.             return false;

  2438.         }

  2439. 

  2440.         // ---------------------------------------------------------------

  2441.         // set info

  2442. 

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

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

  2445. 

  2446.         if (filename != nullptr && filename[0] != '\0')

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

  2448.         else

  2449.             pData->filename = carla_strdup("");

  2450. 

  2451.         fUniqueId     = uniqueId;

  2452.         fBridgeBinary = bridgeBinary;

  2453. 

  2454.         std::srand(static_cast<uint>(std::time(nullptr)));

  2455. 

  2456.         // ---------------------------------------------------------------

  2457.         // init sem/shm

  2458. 

  2459.         if (! fShmAudioPool.initialize())

  2460.         {

  2461.             carla_stdout("Failed to initialize shared memory audio pool");

  2462.             return false;

  2463.         }

  2464. 

  2465.         if (! fShmRtClientControl.initialize())

  2466.         {

  2467.             carla_stdout("Failed to initialize RT client control");

  2468.             fShmAudioPool.clear();

  2469.             return false;

  2470.         }

  2471. 

  2472.         if (! fShmNonRtClientControl.initialize())

  2473.         {

  2474.             carla_stdout("Failed to initialize Non-RT client control");

  2475.             fShmRtClientControl.clear();

  2476.             fShmAudioPool.clear();

  2477.             return false;

  2478.         }

  2479. 

  2480.         if (! fShmNonRtServerControl.initialize())

  2481.         {

  2482.             carla_stdout("Failed to initialize Non-RT server control");

  2483.             fShmNonRtClientControl.clear();

  2484.             fShmRtClientControl.clear();

  2485.             fShmAudioPool.clear();

  2486.             return false;

  2487.         }

  2488. 

  2489.         // ---------------------------------------------------------------

  2490. 

  2491.         carla_stdout("Carla Server Info:");

  2492.         carla_stdout("  sizeof(BridgeRtClientData):    " P_SIZE, sizeof(BridgeRtClientData));

  2493.         carla_stdout("  sizeof(BridgeNonRtClientData): " P_SIZE, sizeof(BridgeNonRtClientData));

  2494.         carla_stdout("  sizeof(BridgeNonRtServerData): " P_SIZE, sizeof(BridgeNonRtServerData));

  2495. 

  2496.         // initial values

  2497.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientNull);

  2498.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeRtClientData)));

  2499.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeNonRtClientData)));

  2500.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeNonRtServerData)));

  2501. 

  2502.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  2503.         fShmNonRtClientControl.writeUInt(pData->engine->getBufferSize());

  2504. 

  2505.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  2506.         fShmNonRtClientControl.writeDouble(pData->engine->getSampleRate());

  2507. 

  2508.         fShmNonRtClientControl.commitWrite();

  2509. 

  2510.         // init bridge thread

  2511.         {

  2512.             char shmIdsStr[6*4+1];

  2513.             carla_zeroChar(shmIdsStr, 6*4+1);

  2514. 

  2515.             std::strncpy(shmIdsStr+6*0, &fShmAudioPool.filename[fShmAudioPool.filename.length()-6], 6);

  2516.             std::strncpy(shmIdsStr+6*1, &fShmRtClientControl.filename[fShmRtClientControl.filename.length()-6], 6);

  2517.             std::strncpy(shmIdsStr+6*2, &fShmNonRtClientControl.filename[fShmNonRtClientControl.filename.length()-6], 6);

  2518.             std::strncpy(shmIdsStr+6*3, &fShmNonRtServerControl.filename[fShmNonRtServerControl.filename.length()-6], 6);

  2519. 

  2520.             fBridgeThread.setData(bridgeBinary, label, shmIdsStr);

  2521.             fBridgeThread.startThread();

  2522.         }

  2523. 

  2524.         fInitiated = false;

  2525.         fLastPongTime = Time::currentTimeMillis();

  2526.         CARLA_SAFE_ASSERT(fLastPongTime > 0);

  2527. 

  2528.         static bool sFirstInit = true;

  2529. 

  2530.         int64_t timeoutEnd = 5000;

  2531. 

  2532.         if (sFirstInit)

  2533.             timeoutEnd *= 2;

  2534. #ifndef CARLA_OS_WIN

  2535.          if (fBinaryType == BINARY_WIN32 || fBinaryType == BINARY_WIN64)

  2536.             timeoutEnd *= 2;

  2537. #endif

  2538.         sFirstInit = false;

  2539. 

  2540.         const bool needsEngineIdle = pData->engine->getType() != kEngineTypePlugin;

  2541. 

  2542.         for (; Time::currentTimeMillis() < fLastPongTime + timeoutEnd && fBridgeThread.isThreadRunning();)

  2543.         {

  2544.             pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2545. 

  2546.             if (needsEngineIdle)

  2547.                 pData->engine->idle();

  2548. 

  2549.             idle();

  2550. 

  2551.             if (fInitiated)

  2552.                 break;

  2553. 

  2554.             carla_msleep(20);

  2555.         }

  2556. 

  2557.         fLastPongTime = -1;

  2558. 

  2559.         if (fInitError || ! fInitiated)

  2560.         {

  2561.             fBridgeThread.stopThread(6000);

  2562. 

  2563.             if (! fInitError)

  2564.                 pData->engine->setLastError("Timeout while waiting for a response from plugin-bridge\n(or the plugin crashed on initialization?)");

  2565. 

  2566.             return false;

  2567.         }

  2568. 

  2569.         // ---------------------------------------------------------------

  2570.         // register client

  2571. 

  2572.         if (pData->name == nullptr)

  2573.         {

  2574.             if (label != nullptr && label[0] != '\0')

  2575.                 pData->name = pData->engine->getUniquePluginName(label);

  2576.             else

  2577.                 pData->name = pData->engine->getUniquePluginName("unknown");

  2578.         }

  2579. 

  2580.         pData->client = pData->engine->addClient(this);

  2581. 

  2582.         if (pData->client == nullptr || ! pData->client->isOk())

  2583.         {

  2584.             pData->engine->setLastError("Failed to register plugin client");

  2585.             return false;

  2586.         }

  2587. 

  2588.         return true;

  2589.     }

  2590. 

  2591. private:

  2592.     const BinaryType fBinaryType;

  2593.     const PluginType fPluginType;

  2594. 

  2595.     bool fInitiated;

  2596.     bool fInitError;

  2597.     bool fSaved;

  2598.     bool fTimedOut;

  2599.     bool fTimedError;

  2600. 

  2601.     int64_t fLastPongTime;

  2602. 

  2603.     CarlaString             fBridgeBinary;

  2604.     CarlaPluginBridgeThread fBridgeThread;

  2605. 

  2606.     BridgeAudioPool          fShmAudioPool;

  2607.     BridgeRtClientControl    fShmRtClientControl;

  2608.     BridgeNonRtClientControl fShmNonRtClientControl;

  2609.     BridgeNonRtServerControl fShmNonRtServerControl;

  2610. 

  2611.     struct Info {

  2612.         uint32_t aIns, aOuts;

  2613.         uint32_t cvIns, cvOuts;

  2614.         uint32_t mIns, mOuts;

  2615.         PluginCategory category;

  2616.         uint optionsAvailable;

  2617.         CarlaString name;

  2618.         CarlaString label;

  2619.         CarlaString maker;

  2620.         CarlaString copyright;

  2621.         std::vector<uint8_t> chunk;

  2622. 

  2623.         Info()

  2624.             : aIns(0),

  2625.               aOuts(0),

  2626.               cvIns(0),

  2627.               cvOuts(0),

  2628.               mIns(0),

  2629.               mOuts(0),

  2630.               category(PLUGIN_CATEGORY_NONE),

  2631.               optionsAvailable(0),

  2632.               name(),

  2633.               label(),

  2634.               maker(),

  2635.               copyright(),

  2636.               chunk() {}

  2637.     } fInfo;

  2638. 

  2639.     int64_t fUniqueId;

  2640. 

  2641.     BridgeParamInfo* fParams;

  2642. 

  2643.     void resizeAudioPool(const uint32_t bufferSize)

  2644.     {

  2645.         fShmAudioPool.resize(bufferSize, fInfo.aIns+fInfo.aOuts, fInfo.cvIns+fInfo.cvOuts);

  2646. 

  2647.         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientSetAudioPool);

  2648.         fShmRtClientControl.writeULong(static_cast<uint64_t>(fShmAudioPool.size));

  2649. 

  2650.         fShmRtClientControl.commitWrite();

  2651. 

  2652.         waitForClient("resize-pool");

  2653.     }

  2654. 

  2655.     void waitForClient(const char* const action, const uint secs = 5)

  2656.     {

  2657.         CARLA_SAFE_ASSERT_RETURN(! fTimedOut,);

  2658.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  2659. 

  2660.         if (fShmRtClientControl.waitForClient(secs, &fTimedOut))

  2661.             return;

  2662. 

  2663.         if (fTimedOut)

  2664.         {

  2665.             carla_stderr("waitForClient(%s) timeout here", action);

  2666.         }

  2667.         else

  2668.         {

  2669.             fTimedError = true;

  2670.             carla_stderr("waitForClient(%s) error while waiting", action);

  2671.         }

  2672.     }

  2673. 

  2674.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginBridge)

  2675. };

  2676. 

  2677. CARLA_BACKEND_END_NAMESPACE

  2678. 

  2679. // -------------------------------------------------------------------------------------------------------------------

  2680. 

  2681. CARLA_BACKEND_START_NAMESPACE

  2682. 

  2683. CarlaPlugin* CarlaPlugin::newBridge(const Initializer& init, BinaryType btype, PluginType ptype, const char* const bridgeBinary)

  2684. {

  2685.     carla_debug("CarlaPlugin::newBridge({%p, \"%s\", \"%s\", \"%s\"}, %s, %s, \"%s\")", init.engine, init.filename, init.name, init.label, BinaryType2Str(btype), PluginType2Str(ptype), bridgeBinary);

  2686. 

  2687.     if (bridgeBinary == nullptr || bridgeBinary[0] == '\0')

  2688.     {

  2689.         init.engine->setLastError("Bridge not possible, bridge-binary not found");

  2690.         return nullptr;

  2691.     }

  2692. 

  2693.     CarlaPluginBridge* const plugin(new CarlaPluginBridge(init.engine, init.id, btype, ptype));

  2694. 

  2695.     if (! plugin->init(init.filename, init.name, init.label, init.uniqueId, bridgeBinary))

  2696.     {

  2697.         delete plugin;

  2698.         return nullptr;

  2699.     }

  2700. 

  2701.     return plugin;

  2702. }

  2703. 

  2704. CARLA_BACKEND_END_NAMESPACE

  2705. 

  2706. // -------------------------------------------------------------------------------------------------------------------