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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. 

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

  504.     {

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

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

  507.         CARLA_SAFE_ASSERT(! isThreadRunning());

  508. 

  509.         fBinary = binary;

  510.         fShmIds = shmIds;

  511. 

  512.         if (label != nullptr)

  513.             fLabel = label;

  514.         if (fLabel.isEmpty())

  515.             fLabel = "\"\"";

  516.     }

  517. 

  518.     uintptr_t getProcessPID() const noexcept

  519.     {

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

  521. 

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

  523.     }

  524. 

  525. protected:

  526.     void run()

  527.     {

  528.         if (fProcess == nullptr)

  529.         {

  530.             fProcess = new ChildProcess();

  531.         }

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

  533.         {

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

  535.         }

  536. 

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

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

  539. 

  540.         if (name.isEmpty())

  541.             name = "(none)";

  542. 

  543.         if (filename.isEmpty())

  544.             filename = "\"\"";

  545. 

  546.         StringArray arguments;

  547. 

  548. #ifndef CARLA_OS_WIN

  549.         // start with "wine" if needed

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

  551.             arguments.add("wine");

  552. #endif

  553. 

  554.         // binary

  555.         arguments.add(fBinary);

  556. 

  557.         // plugin type

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

  559. 

  560.         // filename

  561.         arguments.add(filename);

  562. 

  563.         // label

  564.         arguments.add(fLabel);

  565. 

  566.         // uniqueId

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

  568. 

  569.         bool started;

  570. 

  571.         {

  572.             char strBuf[STR_MAX+1];

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

  574. 

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

  576.             const ScopedEngineEnvironmentLocker _seel(kEngine);

  577. 

  578. #ifdef CARLA_OS_LINUX

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

  580. 

  581.             if (oldPreload != nullptr)

  582.                 ::unsetenv("LD_PRELOAD");

  583. #endif

  584. 

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

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

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

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

  589. 

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

  591.             carla_setenv("ENGINE_OPTION_MAX_PARAMETERS", strBuf);

  592. 

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

  594.             carla_setenv("ENGINE_OPTION_UI_BRIDGES_TIMEOUT",strBuf);

  595. 

  596.             if (options.pathLADSPA != nullptr)

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

  598.             else

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

  600. 

  601.             if (options.pathDSSI != nullptr)

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

  603.             else

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

  605. 

  606.             if (options.pathLV2 != nullptr)

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

  608.             else

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

  610. 

  611.             if (options.pathVST2 != nullptr)

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

  613.             else

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

  615. 

  616.             if (options.pathVST3 != nullptr)

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

  618.             else

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

  620. 

  621.             if (options.pathGIG != nullptr)

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

  623.             else

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

  625. 

  626.             if (options.pathSF2 != nullptr)

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

  628.             else

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

  630. 

  631.             if (options.pathSFZ != nullptr)

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

  633.             else

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

  635. 

  636.             if (options.binaryDir != nullptr)

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

  638.             else

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

  640. 

  641.             if (options.resourceDir != nullptr)

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

  643.             else

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

  645. 

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

  647. 

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

  649.             carla_setenv("ENGINE_OPTION_FRONTEND_WIN_ID", strBuf);

  650. 

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

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

  653. 

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

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

  656. 

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

  658. 

  659. #ifdef CARLA_OS_LINUX

  660.             if (oldPreload != nullptr)

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

  662. #endif

  663.         }

  664. 

  665.         if (! started)

  666.         {

  667.             carla_stdout("failed!");

  668.             fProcess = nullptr;

  669.             return;

  670.         }

  671. 

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

  673.             carla_sleep(1);

  674. 

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

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

  677.         {

  678.             fProcess->waitForProcessToFinish(2000);

  679. 

  680.             if (fProcess->isRunning())

  681.             {

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

  683.                 fProcess->kill();

  684.             }

  685.             else

  686.             {

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

  688.             }

  689.         }

  690.         else

  691.         {

  692.             // forced quit, may have crashed

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

  694.             {

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

  696. 

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

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

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

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

  701.             }

  702.             else

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

  704.         }

  705. 

  706.         carla_stdout("plugin bridge finished");

  707.         fProcess = nullptr;

  708.     }

  709. 

  710. private:

  711.     CarlaEngine* const kEngine;

  712.     CarlaPlugin* const kPlugin;

  713. 

  714.     String fBinary;

  715.     String fLabel;

  716.     String fShmIds;

  717. 

  718.     ScopedPointer<ChildProcess> fProcess;

  719. 

  720.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginBridgeThread)

  721. };

  722. 

  723. // -------------------------------------------------------------------------------------------------------------------

  724. 

  725. class CarlaPluginBridge : public CarlaPlugin

  726. {

  727. public:

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

  729.         : CarlaPlugin(engine, id),

  730.           fBinaryType(btype),

  731.           fPluginType(ptype),

  732.           fInitiated(false),

  733.           fInitError(false),

  734.           fSaved(true),

  735.           fTimedOut(false),

  736.           fTimedError(false),

  737.           fLastPongTime(-1),

  738.           fBridgeBinary(),

  739.           fBridgeThread(engine, this),

  740.           fShmAudioPool(),

  741.           fShmRtClientControl(),

  742.           fShmNonRtClientControl(),

  743.           fShmNonRtServerControl(),

  744.           fInfo(),

  745.           fUniqueId(0),

  746.           fParams(nullptr)

  747.     {

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

  749. 

  750.         pData->hints |= PLUGIN_IS_BRIDGE;

  751.     }

  752. 

  753.     ~CarlaPluginBridge() override

  754.     {

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

  756. 

  757.         // close UI

  758.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  759.             pData->transientTryCounter = 0;

  760. 

  761.         pData->singleMutex.lock();

  762.         pData->masterMutex.lock();

  763. 

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

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

  766. 

  767.         if (pData->active)

  768.         {

  769.             deactivate();

  770.             pData->active = false;

  771.         }

  772. 

  773.         if (fBridgeThread.isThreadRunning())

  774.         {

  775.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientQuit);

  776.             fShmNonRtClientControl.commitWrite();

  777. 

  778.             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientQuit);

  779.             fShmRtClientControl.commitWrite();

  780. 

  781.             if (! fTimedOut)

  782.                 waitForClient("stopping", 3);

  783.         }

  784. 

  785.         fBridgeThread.stopThread(3000);

  786. 

  787.         fShmNonRtServerControl.clear();

  788.         fShmNonRtClientControl.clear();

  789.         fShmRtClientControl.clear();

  790.         fShmAudioPool.clear();

  791. 

  792.         clearBuffers();

  793. 

  794.         fInfo.chunk.clear();

  795.     }

  796. 

  797.     // -------------------------------------------------------------------

  798.     // Information (base)

  799. 

  800.     BinaryType getBinaryType() const noexcept

  801.     {

  802.         return fBinaryType;

  803.     }

  804. 

  805.     PluginType getType() const noexcept override

  806.     {

  807.         return fPluginType;

  808.     }

  809. 

  810.     PluginCategory getCategory() const noexcept override

  811.     {

  812.         return fInfo.category;

  813.     }

  814. 

  815.     int64_t getUniqueId() const noexcept override

  816.     {

  817.         return fUniqueId;

  818.     }

  819. 

  820.     // -------------------------------------------------------------------

  821.     // Information (count)

  822. 

  823.     uint32_t getMidiInCount() const noexcept override

  824.     {

  825.         return fInfo.mIns;

  826.     }

  827. 

  828.     uint32_t getMidiOutCount() const noexcept override

  829.     {

  830.         return fInfo.mOuts;

  831.     }

  832. 

  833.     // -------------------------------------------------------------------

  834.     // Information (current data)

  835. 

  836.     // TODO - missing getCustomData

  837. 

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

  839.     {

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

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

  842. 

  843.         waitForSaved();

  844. 

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

  846. 

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

  848.         return fInfo.chunk.size();

  849.     }

  850. 

  851.     // -------------------------------------------------------------------

  852.     // Information (per-plugin data)

  853. 

  854.     uint getOptionsAvailable() const noexcept override

  855.     {

  856.         return fInfo.optionsAvailable;

  857.     }

  858. 

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

  860.     {

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

  862. 

  863.         return fParams[parameterId].value;

  864.     }

  865. 

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

  867.     {

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

  869.     }

  870. 

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

  872.     {

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

  874.     }

  875. 

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

  877.     {

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

  879.     }

  880. 

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

  882.     {

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

  884.     }

  885. 

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

  887.     {

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

  889. 

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

  891.     }

  892. 

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

  894.     {

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

  896. 

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

  898.     }

  899. 

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

  901.     {

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

  903. 

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

  905.     }

  906. 

  907.     // -------------------------------------------------------------------

  908.     // Set data (state)

  909. 

  910.     void prepareForSave() noexcept override

  911.     {

  912.         fSaved = false;

  913. 

  914.         {

  915.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  916. 

  917.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPrepareForSave);

  918.             fShmNonRtClientControl.commitWrite();

  919.         }

  920.     }

  921. 

  922.     void waitForSaved()

  923.     {

  924.         if (fSaved)

  925.             return;

  926. 

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

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

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

  930. 

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

  932. 

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

  934.         {

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

  936. 

  937.             if (needsEngineIdle)

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

  939. 

  940.             if (fSaved)

  941.                 break;

  942. 

  943.             carla_msleep(20);

  944.         }

  945. 

  946.         if (! fSaved)

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

  948.         else

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

  950.     }

  951. 

  952.     // -------------------------------------------------------------------

  953.     // Set data (internal stuff)

  954. 

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

  956.     {

  957.         {

  958.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  959. 

  960.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetOption);

  961.             fShmNonRtClientControl.writeUInt(option);

  962.             fShmNonRtClientControl.writeBool(yesNo);

  963.             fShmNonRtClientControl.commitWrite();

  964.         }

  965. 

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

  967.     }

  968. 

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

  970.     {

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

  972. 

  973.         {

  974.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  975. 

  976.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetCtrlChannel);

  977.             fShmNonRtClientControl.writeShort(channel);

  978.             fShmNonRtClientControl.commitWrite();

  979.         }

  980. 

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

  982.     }

  983. 

  984.     // -------------------------------------------------------------------

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

  986. 

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

  988.     {

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

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

  991. 

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

  993.         fParams[parameterId].value = fixedValue;

  994. 

  995.         {

  996.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  997. 

  998.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterValue);

  999.             fShmNonRtClientControl.writeUInt(parameterId);

  1000.             fShmNonRtClientControl.writeFloat(value);

  1001.             fShmNonRtClientControl.commitWrite();

  1002.             fShmNonRtClientControl.waitIfDataIsReachingLimit();

  1003.         }

  1004. 

  1005.         CarlaPlugin::setParameterValue(parameterId, fixedValue, sendGui, sendOsc, sendCallback);

  1006.     }

  1007. 

  1008.     void setParameterMidiChannel(const uint32_t parameterId, const uint8_t channel, const bool sendOsc, const bool sendCallback) noexcept override

  1009.     {

  1010.         CARLA_SAFE_ASSERT_RETURN(sendOsc || sendCallback,); // never call this from RT

  1011.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  1012.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1013. 

  1014.         {

  1015.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1016. 

  1017.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterMidiChannel);

  1018.             fShmNonRtClientControl.writeUInt(parameterId);

  1019.             fShmNonRtClientControl.writeByte(channel);

  1020.             fShmNonRtClientControl.commitWrite();

  1021.         }

  1022. 

  1023.         CarlaPlugin::setParameterMidiChannel(parameterId, channel, sendOsc, sendCallback);

  1024.     }

  1025. 

  1026.     void setParameterMidiCC(const uint32_t parameterId, const int16_t cc, const bool sendOsc, const bool sendCallback) noexcept override

  1027.     {

  1028.         CARLA_SAFE_ASSERT_RETURN(sendOsc || sendCallback,); // never call this from RT

  1029.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  1030.         CARLA_SAFE_ASSERT_RETURN(cc >= -1 && cc < MAX_MIDI_CONTROL,);

  1031. 

  1032.         {

  1033.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1034. 

  1035.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterMidiCC);

  1036.             fShmNonRtClientControl.writeUInt(parameterId);

  1037.             fShmNonRtClientControl.writeShort(cc);

  1038.             fShmNonRtClientControl.commitWrite();

  1039.         }

  1040. 

  1041.         CarlaPlugin::setParameterMidiCC(parameterId, cc, sendOsc, sendCallback);

  1042.     }

  1043. 

  1044.     void setProgram(const int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  1045.     {

  1046.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback,); // never call this from RT

  1047.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->prog.count),);

  1048. 

  1049.         {

  1050.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1051. 

  1052.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetProgram);

  1053.             fShmNonRtClientControl.writeInt(index);

  1054.             fShmNonRtClientControl.commitWrite();

  1055.         }

  1056. 

  1057.         CarlaPlugin::setProgram(index, sendGui, sendOsc, sendCallback);

  1058.     }

  1059. 

  1060.     void setMidiProgram(const int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  1061.     {

  1062.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback,); // never call this from RT

  1063.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->midiprog.count),);

  1064. 

  1065.         {

  1066.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1067. 

  1068.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetMidiProgram);

  1069.             fShmNonRtClientControl.writeInt(index);

  1070.             fShmNonRtClientControl.commitWrite();

  1071.         }

  1072. 

  1073.         CarlaPlugin::setMidiProgram(index, sendGui, sendOsc, sendCallback);

  1074.     }

  1075. 

  1076.     void setCustomData(const char* const type, const char* const key, const char* const value, const bool sendGui) override

  1077.     {

  1078.         CARLA_SAFE_ASSERT_RETURN(type != nullptr && type[0] != '\0',);

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

  1080.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

  1081. 

  1082.         if (std::strcmp(type, CUSTOM_DATA_TYPE_PROPERTY) == 0)

  1083.             return CarlaPlugin::setCustomData(type, key, value, sendGui);

  1084. 

  1085.         if (std::strcmp(type, CUSTOM_DATA_TYPE_STRING) == 0 && std::strcmp(key, "__CarlaPingOnOff__") == 0)

  1086.         {

  1087.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1088. 

  1089.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPingOnOff);

  1090.             fShmNonRtClientControl.writeBool(std::strcmp(value, "true") == 0);

  1091.             fShmNonRtClientControl.commitWrite();

  1092. 

  1093.             carla_stdout("Carla bridge server side, OnOff ping checks => %s", value);

  1094.             return;

  1095.         }

  1096. 

  1097.         const uint32_t typeLen(static_cast<uint32_t>(std::strlen(type)));

  1098.         const uint32_t keyLen(static_cast<uint32_t>(std::strlen(key)));

  1099.         const uint32_t valueLen(static_cast<uint32_t>(std::strlen(value)));

  1100. 

  1101.         {

  1102.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1103. 

  1104.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetCustomData);

  1105. 

  1106.             fShmNonRtClientControl.writeUInt(typeLen);

  1107.             fShmNonRtClientControl.writeCustomData(type, typeLen);

  1108. 

  1109.             fShmNonRtClientControl.writeUInt(keyLen);

  1110.             fShmNonRtClientControl.writeCustomData(key, keyLen);

  1111. 

  1112.             fShmNonRtClientControl.writeUInt(valueLen);

  1113.             fShmNonRtClientControl.writeCustomData(value, valueLen);

  1114. 

  1115.             fShmNonRtClientControl.commitWrite();

  1116.         }

  1117. 

  1118.         CarlaPlugin::setCustomData(type, key, value, sendGui);

  1119.     }

  1120. 

  1121.     void setChunkData(const void* const data, const std::size_t dataSize) override

  1122.     {

  1123.         CARLA_SAFE_ASSERT_RETURN(pData->options & PLUGIN_OPTION_USE_CHUNKS,);

  1124.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  1125.         CARLA_SAFE_ASSERT_RETURN(dataSize > 0,);

  1126. 

  1127.         carla_stdout("Carla bridge server side, setChunkData 001");

  1128. 

  1129.         CarlaString dataBase64(CarlaString::asBase64(data, dataSize));

  1130.         CARLA_SAFE_ASSERT_RETURN(dataBase64.length() > 0,);

  1131. 

  1132.         String filePath(File::getSpecialLocation(File::tempDirectory).getFullPathName());

  1133. 

  1134.         filePath += CARLA_OS_SEP_STR ".CarlaChunk_";

  1135.         filePath += fShmAudioPool.filename.buffer() + 18;

  1136. 

  1137.         if (File(filePath).replaceWithText(dataBase64.buffer()))

  1138.         {

  1139.             carla_stdout("Carla bridge server side, setChunkData 002");

  1140. 

  1141.             const uint32_t ulength(static_cast<uint32_t>(filePath.length()));

  1142. 

  1143.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1144. 

  1145.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetChunkDataFile);

  1146.             fShmNonRtClientControl.writeUInt(ulength);

  1147.             fShmNonRtClientControl.writeCustomData(filePath.toRawUTF8(), ulength);

  1148.             fShmNonRtClientControl.commitWrite();

  1149. 

  1150.             carla_stdout("Carla bridge server side, setChunkData sent");

  1151.         }

  1152. 

  1153.         // save data internally as well

  1154.         fInfo.chunk.resize(dataSize);

  1155.         std::memcpy(fInfo.chunk.data(), data, dataSize);

  1156. 

  1157.         carla_stdout("Carla bridge server side, setChunkData saved locally too");

  1158.     }

  1159. 

  1160.     // -------------------------------------------------------------------

  1161.     // Set ui stuff

  1162. 

  1163.     void showCustomUI(const bool yesNo) override

  1164.     {

  1165.         {

  1166.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1167. 

  1168.             fShmNonRtClientControl.writeOpcode(yesNo ? kPluginBridgeNonRtClientShowUI : kPluginBridgeNonRtClientHideUI);

  1169.             fShmNonRtClientControl.commitWrite();

  1170.         }

  1171. 

  1172. #ifndef BUILD_BRIDGE

  1173.         if (yesNo)

  1174.         {

  1175.             pData->tryTransient();

  1176.         }

  1177.         else

  1178.         {

  1179.             pData->transientTryCounter = 0;

  1180.         }

  1181. #endif

  1182.     }

  1183. 

  1184.     void idle() override

  1185.     {

  1186.         if (fBridgeThread.isThreadRunning())

  1187.         {

  1188.             if (fInitiated && fTimedOut && pData->active)

  1189.                 setActive(false, true, true);

  1190. 

  1191.             {

  1192.                 const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1193. 

  1194.                 fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPing);

  1195.                 fShmNonRtClientControl.commitWrite();

  1196.             }

  1197. 

  1198.             try {

  1199.                 handleNonRtData();

  1200.             } CARLA_SAFE_EXCEPTION("handleNonRtData");

  1201.         }

  1202.         else if (fInitiated)

  1203.         {

  1204.             fTimedOut   = true;

  1205.             fTimedError = true;

  1206.             fInitiated  = false;

  1207.             pData->engine->callback(ENGINE_CALLBACK_PLUGIN_UNAVAILABLE, pData->id, 0, 0, 0.0f, "plugin bridge has been stopped or crashed");

  1208.         }

  1209. 

  1210.         CarlaPlugin::idle();

  1211.     }

  1212. 

  1213.     // -------------------------------------------------------------------

  1214.     // Plugin state

  1215. 

  1216.     void reload() override

  1217.     {

  1218.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr,);

  1219.         carla_debug("CarlaPluginBridge::reload() - start");

  1220. 

  1221.         const EngineProcessMode processMode(pData->engine->getProccessMode());

  1222. 

  1223.         // Safely disable plugin for reload

  1224.         const ScopedDisabler sd(this);

  1225. 

  1226.         bool needsCtrlIn, needsCtrlOut;

  1227.         needsCtrlIn = needsCtrlOut = false;

  1228. 

  1229.         if (fInfo.aIns > 0)

  1230.         {

  1231.             pData->audioIn.createNew(fInfo.aIns);

  1232.         }

  1233. 

  1234.         if (fInfo.aOuts > 0)

  1235.         {

  1236.             pData->audioOut.createNew(fInfo.aOuts);

  1237.             needsCtrlIn = true;

  1238.         }

  1239. 

  1240.         if (fInfo.cvIns > 0)

  1241.         {

  1242.             pData->cvIn.createNew(fInfo.cvIns);

  1243.         }

  1244. 

  1245.         if (fInfo.cvOuts > 0)

  1246.         {

  1247.             pData->cvOut.createNew(fInfo.cvOuts);

  1248.         }

  1249. 

  1250.         if (fInfo.mIns > 0)

  1251.             needsCtrlIn = true;

  1252. 

  1253.         if (fInfo.mOuts > 0)

  1254.             needsCtrlOut = true;

  1255. 

  1256.         const uint portNameSize(pData->engine->getMaxPortNameSize());

  1257.         CarlaString portName;

  1258. 

  1259.         // Audio Ins

  1260.         for (uint32_t j=0; j < fInfo.aIns; ++j)

  1261.         {

  1262.             portName.clear();

  1263. 

  1264.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1265.             {

  1266.                 portName  = pData->name;

  1267.                 portName += ":";

  1268.             }

  1269. 

  1270.             if (fInfo.aIns > 1)

  1271.             {

  1272.                 portName += "input_";

  1273.                 portName += CarlaString(j+1);

  1274.             }

  1275.             else

  1276.                 portName += "input";

  1277. 

  1278.             portName.truncate(portNameSize);

  1279. 

  1280.             pData->audioIn.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true, j);

  1281.             pData->audioIn.ports[j].rindex = j;

  1282.         }

  1283. 

  1284.         // Audio Outs

  1285.         for (uint32_t j=0; j < fInfo.aOuts; ++j)

  1286.         {

  1287.             portName.clear();

  1288. 

  1289.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1290.             {

  1291.                 portName  = pData->name;

  1292.                 portName += ":";

  1293.             }

  1294. 

  1295.             if (fInfo.aOuts > 1)

  1296.             {

  1297.                 portName += "output_";

  1298.                 portName += CarlaString(j+1);

  1299.             }

  1300.             else

  1301.                 portName += "output";

  1302. 

  1303.             portName.truncate(portNameSize);

  1304. 

  1305.             pData->audioOut.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false, j);

  1306.             pData->audioOut.ports[j].rindex = j;

  1307.         }

  1308. 

  1309.         // TODO - CV

  1310. 

  1311.         if (needsCtrlIn)

  1312.         {

  1313.             portName.clear();

  1314. 

  1315.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1316.             {

  1317.                 portName  = pData->name;

  1318.                 portName += ":";

  1319.             }

  1320. 

  1321.             portName += "event-in";

  1322.             portName.truncate(portNameSize);

  1323. 

  1324.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true, 0);

  1325.         }

  1326. 

  1327.         if (needsCtrlOut)

  1328.         {

  1329.             portName.clear();

  1330. 

  1331.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1332.             {

  1333.                 portName  = pData->name;

  1334.                 portName += ":";

  1335.             }

  1336. 

  1337.             portName += "event-out";

  1338.             portName.truncate(portNameSize);

  1339. 

  1340.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false, 0);

  1341.         }

  1342. 

  1343.         // extra plugin hints

  1344.         pData->extraHints = 0x0;

  1345. 

  1346.         if (fInfo.mIns > 0)

  1347.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  1348. 

  1349.         if (fInfo.mOuts > 0)

  1350.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_OUT;

  1351. 

  1352.         if (fInfo.aIns <= 2 && fInfo.aOuts <= 2 && (fInfo.aIns == fInfo.aOuts || fInfo.aIns == 0 || fInfo.aOuts == 0))

  1353.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1354. 

  1355.         bufferSizeChanged(pData->engine->getBufferSize());

  1356.         reloadPrograms(true);

  1357. 

  1358.         carla_debug("CarlaPluginBridge::reload() - end");

  1359.     }

  1360. 

  1361.     // -------------------------------------------------------------------

  1362.     // Plugin processing

  1363. 

  1364.     void activate() noexcept override

  1365.     {

  1366.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  1367. 

  1368.         {

  1369.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1370. 

  1371.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientActivate);

  1372.             fShmNonRtClientControl.commitWrite();

  1373.         }

  1374. 

  1375.         fTimedOut = false;

  1376. 

  1377.         try {

  1378.             waitForClient("activate", 2);

  1379.         } CARLA_SAFE_EXCEPTION("activate - waitForClient");

  1380.     }

  1381. 

  1382.     void deactivate() noexcept override

  1383.     {

  1384.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  1385. 

  1386.         {

  1387.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1388. 

  1389.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientDeactivate);

  1390.             fShmNonRtClientControl.commitWrite();

  1391.         }

  1392. 

  1393.         fTimedOut = false;

  1394. 

  1395.         try {

  1396.             waitForClient("deactivate", 2);

  1397.         } CARLA_SAFE_EXCEPTION("deactivate - waitForClient");

  1398.     }

  1399. 

  1400.     void process(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames) override

  1401.     {

  1402.         // --------------------------------------------------------------------------------------------------------

  1403.         // Check if active

  1404. 

  1405.         if (fTimedOut || fTimedError || ! pData->active)

  1406.         {

  1407.             // disable any output sound

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

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

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

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

  1412.             return;

  1413.         }

  1414. 

  1415.         // --------------------------------------------------------------------------------------------------------

  1416.         // Check if needs reset

  1417. 

  1418.         if (pData->needsReset)

  1419.         {

  1420.             // TODO

  1421. 

  1422.             pData->needsReset = false;

  1423.         }

  1424. 

  1425.         // --------------------------------------------------------------------------------------------------------

  1426.         // Event Input

  1427. 

  1428.         if (pData->event.portIn != nullptr)

  1429.         {

  1430.             // ----------------------------------------------------------------------------------------------------

  1431.             // MIDI Input (External)

  1432. 

  1433.             if (pData->extNotes.mutex.tryLock())

  1434.             {

  1435.                 for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin2(); it.valid(); it.next())

  1436.                 {

  1437.                     const ExternalMidiNote& note(it.getValue());

  1438. 

  1439.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1440. 

  1441.                     uint8_t data1, data2, data3;

  1442.                     data1 = uint8_t((note.velo > 0 ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF) | (note.channel & MIDI_CHANNEL_BIT));

  1443.                     data2 = note.note;

  1444.                     data3 = note.velo;

  1445. 

  1446.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1447.                     fShmRtClientControl.writeUInt(0); // time

  1448.                     fShmRtClientControl.writeByte(0); // port

  1449.                     fShmRtClientControl.writeByte(3); // size

  1450.                     fShmRtClientControl.writeByte(data1);

  1451.                     fShmRtClientControl.writeByte(data2);

  1452.                     fShmRtClientControl.writeByte(data3);

  1453.                     fShmRtClientControl.commitWrite();

  1454.                 }

  1455. 

  1456.                 pData->extNotes.data.clear();

  1457.                 pData->extNotes.mutex.unlock();

  1458. 

  1459.             } // End of MIDI Input (External)

  1460. 

  1461.             // ----------------------------------------------------------------------------------------------------

  1462.             // Event Input (System)

  1463. 

  1464. #ifndef BUILD_BRIDGE

  1465.             bool allNotesOffSent = false;

  1466. #endif

  1467. 

  1468.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1469.             {

  1470.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1471. 

  1472.                 // Control change

  1473.                 switch (event.type)

  1474.                 {

  1475.                 case kEngineEventTypeNull:

  1476.                     break;

  1477. 

  1478.                 case kEngineEventTypeControl: {

  1479.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1480. 

  1481.                     switch (ctrlEvent.type)

  1482.                     {

  1483.                     case kEngineControlEventTypeNull:

  1484.                         break;

  1485. 

  1486.                     case kEngineControlEventTypeParameter:

  1487. #ifndef BUILD_BRIDGE

  1488.                         // Control backend stuff

  1489.                         if (event.channel == pData->ctrlChannel)

  1490.                         {

  1491.                             float value;

  1492. 

  1493.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1494.                             {

  1495.                                 value = ctrlEvent.value;

  1496.                                 setDryWet(value, false, false);

  1497.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1498.                                 break;

  1499.                             }

  1500. 

  1501.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1502.                             {

  1503.                                 value = ctrlEvent.value*127.0f/100.0f;

  1504.                                 setVolume(value, false, false);

  1505.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1506.                                 break;

  1507.                             }

  1508. 

  1509.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1510.                             {

  1511.                                 float left, right;

  1512.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1513. 

  1514.                                 if (value < 0.0f)

  1515.                                 {

  1516.                                     left  = -1.0f;

  1517.                                     right = (value*2.0f)+1.0f;

  1518.                                 }

  1519.                                 else if (value > 0.0f)

  1520.                                 {

  1521.                                     left  = (value*2.0f)-1.0f;

  1522.                                     right = 1.0f;

  1523.                                 }

  1524.                                 else

  1525.                                 {

  1526.                                     left  = -1.0f;

  1527.                                     right = 1.0f;

  1528.                                 }

  1529. 

  1530.                                 setBalanceLeft(left, false, false);

  1531.                                 setBalanceRight(right, false, false);

  1532.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1533.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1534.                                 break;

  1535.                             }

  1536.                         }

  1537. #endif

  1538.                         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventParameter);

  1539.                         fShmRtClientControl.writeUInt(event.time);

  1540.                         fShmRtClientControl.writeByte(event.channel);

  1541.                         fShmRtClientControl.writeUShort(event.ctrl.param);

  1542.                         fShmRtClientControl.writeFloat(event.ctrl.value);

  1543.                         fShmRtClientControl.commitWrite();

  1544.                         break;

  1545. 

  1546.                     case kEngineControlEventTypeMidiBank:

  1547.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1548.                         {

  1549.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiBank);

  1550.                             fShmRtClientControl.writeUInt(event.time);

  1551.                             fShmRtClientControl.writeByte(event.channel);

  1552.                             fShmRtClientControl.writeUShort(event.ctrl.param);

  1553.                             fShmRtClientControl.commitWrite();

  1554.                         }

  1555.                         break;

  1556. 

  1557.                     case kEngineControlEventTypeMidiProgram:

  1558.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1559.                         {

  1560.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiProgram);

  1561.                             fShmRtClientControl.writeUInt(event.time);

  1562.                             fShmRtClientControl.writeByte(event.channel);

  1563.                             fShmRtClientControl.writeUShort(event.ctrl.param);

  1564.                             fShmRtClientControl.commitWrite();

  1565.                         }

  1566.                         break;

  1567. 

  1568.                     case kEngineControlEventTypeAllSoundOff:

  1569.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1570.                         {

  1571.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllSoundOff);

  1572.                             fShmRtClientControl.writeUInt(event.time);

  1573.                             fShmRtClientControl.writeByte(event.channel);

  1574.                             fShmRtClientControl.commitWrite();

  1575.                         }

  1576.                         break;

  1577. 

  1578.                     case kEngineControlEventTypeAllNotesOff:

  1579.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1580.                         {

  1581. #ifndef BUILD_BRIDGE

  1582.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1583.                             {

  1584.                                 allNotesOffSent = true;

  1585.                                 sendMidiAllNotesOffToCallback();

  1586.                             }

  1587. #endif

  1588. 

  1589.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllNotesOff);

  1590.                             fShmRtClientControl.writeUInt(event.time);

  1591.                             fShmRtClientControl.writeByte(event.channel);

  1592.                             fShmRtClientControl.commitWrite();

  1593.                         }

  1594.                         break;

  1595.                     } // switch (ctrlEvent.type)

  1596.                     break;

  1597.                 } // case kEngineEventTypeControl

  1598. 

  1599.                 case kEngineEventTypeMidi: {

  1600.                     const EngineMidiEvent& midiEvent(event.midi);

  1601. 

  1602.                     if (midiEvent.size == 0 || midiEvent.size >= MAX_MIDI_VALUE)

  1603.                         continue;

  1604. 

  1605.                     const uint8_t* const midiData(midiEvent.size > EngineMidiEvent::kDataSize ? midiEvent.dataExt : midiEvent.data);

  1606. 

  1607.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiData));

  1608. 

  1609.                     if (status == MIDI_STATUS_CHANNEL_PRESSURE && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1610.                         continue;

  1611.                     if (status == MIDI_STATUS_CONTROL_CHANGE && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1612.                         continue;

  1613.                     if (status == MIDI_STATUS_POLYPHONIC_AFTERTOUCH && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1614.                         continue;

  1615.                     if (status == MIDI_STATUS_PITCH_WHEEL_CONTROL && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1616.                         continue;

  1617. 

  1618.                     // Fix bad note-off

  1619.                     if (status == MIDI_STATUS_NOTE_ON && midiData[2] == 0)

  1620.                         status = MIDI_STATUS_NOTE_OFF;

  1621. 

  1622.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1623.                     fShmRtClientControl.writeUInt(event.time);

  1624.                     fShmRtClientControl.writeByte(midiEvent.port);

  1625.                     fShmRtClientControl.writeByte(midiEvent.size);

  1626. 

  1627.                     fShmRtClientControl.writeByte(uint8_t(midiData[0] | (event.channel & MIDI_CHANNEL_BIT)));

  1628. 

  1629.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1630.                         fShmRtClientControl.writeByte(midiData[j]);

  1631. 

  1632.                     fShmRtClientControl.commitWrite();

  1633. 

  1634.                     if (status == MIDI_STATUS_NOTE_ON)

  1635.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, midiData[1], midiData[2]);

  1636.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1637.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, midiData[1], 0.0f);

  1638.                 } break;

  1639.                 }

  1640.             }

  1641. 

  1642.             pData->postRtEvents.trySplice();

  1643. 

  1644.         } // End of Event Input

  1645. 

  1646.         if (! processSingle(audioIn, audioOut, cvIn, cvOut, frames))

  1647.             return;

  1648. 

  1649.         // --------------------------------------------------------------------------------------------------------

  1650.         // Control and MIDI Output

  1651. 

  1652.         if (pData->event.portOut != nullptr)

  1653.         {

  1654.             float value;

  1655. 

  1656.             for (uint32_t k=0; k < pData->param.count; ++k)

  1657.             {

  1658.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1659.                     continue;

  1660. 

  1661.                 if (pData->param.data[k].midiCC > 0)

  1662.                 {

  1663.                     value = pData->param.ranges[k].getNormalizedValue(fParams[k].value);

  1664.                     pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), value);

  1665.                 }

  1666.             }

  1667. 

  1668.             uint8_t size;

  1669.             uint32_t time;

  1670.             const uint8_t* midiData(fShmRtClientControl.data->midiOut);

  1671. 

  1672.             for (std::size_t read=0; read<kBridgeRtClientDataMidiOutSize;)

  1673.             {

  1674.                 size = *midiData;

  1675. 

  1676.                 if (size == 0)

  1677.                     break;

  1678. 

  1679.                 // advance 8 bits (1 byte)

  1680.                 midiData = midiData + 1;

  1681. 

  1682.                 // get time as 32bit

  1683.                 time = *(const uint32_t*)midiData;

  1684. 

  1685.                 // advance 32 bits (4 bytes)

  1686.                 midiData = midiData + 4;

  1687. 

  1688.                 // store midi data advancing as needed

  1689.                 uint8_t data[size];

  1690. 

  1691.                 for (uint8_t j=0; j<size; ++j)

  1692.                     data[j] = *midiData++;

  1693. 

  1694.                 pData->event.portOut->writeMidiEvent(time, size, data);

  1695. 

  1696.                 read += 1U /* size*/ + 4U /* time */ + size;

  1697.             }

  1698. 

  1699.         } // End of Control and MIDI Output

  1700.     }

  1701. 

  1702.     bool processSingle(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames)

  1703.     {

  1704.         CARLA_SAFE_ASSERT_RETURN(! fTimedError, false);

  1705.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1706. 

  1707.         if (pData->audioIn.count > 0)

  1708.         {

  1709.             CARLA_SAFE_ASSERT_RETURN(audioIn != nullptr, false);

  1710.         }

  1711.         if (pData->audioOut.count > 0)

  1712.         {

  1713.             CARLA_SAFE_ASSERT_RETURN(audioOut != nullptr, false);

  1714.         }

  1715.         if (pData->cvIn.count > 0)

  1716.         {

  1717.             CARLA_SAFE_ASSERT_RETURN(cvIn != nullptr, false);

  1718.         }

  1719.         if (pData->cvOut.count > 0)

  1720.         {

  1721.             CARLA_SAFE_ASSERT_RETURN(cvOut != nullptr, false);

  1722.         }

  1723. 

  1724.         // --------------------------------------------------------------------------------------------------------

  1725.         // Try lock, silence otherwise

  1726. 

  1727.         if (pData->engine->isOffline())

  1728.         {

  1729.             pData->singleMutex.lock();

  1730.         }

  1731.         else if (! pData->singleMutex.tryLock())

  1732.         {

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

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

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

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

  1737.             return false;

  1738.         }

  1739. 

  1740.         // --------------------------------------------------------------------------------------------------------

  1741.         // Reset audio buffers

  1742. 

  1743.         for (uint32_t i=0; i < fInfo.aIns; ++i)

  1744.             FloatVectorOperations::copy(fShmAudioPool.data + (i * frames), audioIn[i], static_cast<int>(frames));

  1745. 

  1746.         // --------------------------------------------------------------------------------------------------------

  1747.         // TimeInfo

  1748. 

  1749.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1750.         BridgeTimeInfo& bridgeTimeInfo(fShmRtClientControl.data->timeInfo);

  1751. 

  1752.         bridgeTimeInfo.playing = timeInfo.playing;

  1753.         bridgeTimeInfo.frame   = timeInfo.frame;

  1754.         bridgeTimeInfo.usecs   = timeInfo.usecs;

  1755.         bridgeTimeInfo.valid   = timeInfo.valid;

  1756. 

  1757.         if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1758.         {

  1759.             bridgeTimeInfo.bar  = timeInfo.bbt.bar;

  1760.             bridgeTimeInfo.beat = timeInfo.bbt.beat;

  1761.             bridgeTimeInfo.tick = timeInfo.bbt.tick;

  1762. 

  1763.             bridgeTimeInfo.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1764.             bridgeTimeInfo.beatType    = timeInfo.bbt.beatType;

  1765. 

  1766.             bridgeTimeInfo.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1767.             bridgeTimeInfo.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1768.             bridgeTimeInfo.barStartTick   = timeInfo.bbt.barStartTick;

  1769.         }

  1770. 

  1771.         // --------------------------------------------------------------------------------------------------------

  1772.         // Run plugin

  1773. 

  1774.         {

  1775.             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientProcess);

  1776.             fShmRtClientControl.commitWrite();

  1777.         }

  1778. 

  1779.         waitForClient("process", 1);

  1780. 

  1781.         if (fTimedOut)

  1782.         {

  1783.             pData->singleMutex.unlock();

  1784.             return false;

  1785.         }

  1786. 

  1787.         for (uint32_t i=0; i < fInfo.aOuts; ++i)

  1788.             FloatVectorOperations::copy(audioOut[i], fShmAudioPool.data + ((i + fInfo.aIns) * frames), static_cast<int>(frames));

  1789. 

  1790. #ifndef BUILD_BRIDGE

  1791.         // --------------------------------------------------------------------------------------------------------

  1792.         // Post-processing (dry/wet, volume and balance)

  1793. 

  1794.         {

  1795.             const bool doVolume  = (pData->hints & PLUGIN_CAN_VOLUME) != 0 && carla_isNotEqual(pData->postProc.volume, 1.0f);

  1796.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && carla_isNotEqual(pData->postProc.dryWet, 1.0f);

  1797.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_isEqual(pData->postProc.balanceLeft, -1.0f) && carla_isEqual(pData->postProc.balanceRight, 1.0f));

  1798. 

  1799.             bool isPair;

  1800.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1801. 

  1802.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1803.             {

  1804.                 // Dry/Wet

  1805.                 if (doDryWet)

  1806.                 {

  1807.                     for (uint32_t k=0; k < frames; ++k)

  1808.                     {

  1809.                         bufValue        = audioIn[(pData->audioIn.count == 1) ? 0 : i][k];

  1810.                         audioOut[i][k] = (audioOut[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1811.                     }

  1812.                 }

  1813. 

  1814.                 // Balance

  1815.                 if (doBalance)

  1816.                 {

  1817.                     isPair = (i % 2 == 0);

  1818. 

  1819.                     if (isPair)

  1820.                     {

  1821.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1822.                         FloatVectorOperations::copy(oldBufLeft, audioOut[i], static_cast<int>(frames));

  1823.                     }

  1824. 

  1825.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

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

  1827. 

  1828.                     for (uint32_t k=0; k < frames; ++k)

  1829.                     {

  1830.                         if (isPair)

  1831.                         {

  1832.                             // left

  1833.                             audioOut[i][k]  = oldBufLeft[k]     * (1.0f - balRangeL);

  1834.                             audioOut[i][k] += audioOut[i+1][k] * (1.0f - balRangeR);

  1835.                         }

  1836.                         else

  1837.                         {

  1838.                             // right

  1839.                             audioOut[i][k]  = audioOut[i][k] * balRangeR;

  1840.                             audioOut[i][k] += oldBufLeft[k]   * balRangeL;

  1841.                         }

  1842.                     }

  1843.                 }

  1844. 

  1845.                 // Volume (and buffer copy)

  1846.                 if (doVolume)

  1847.                 {

  1848.                     for (uint32_t k=0; k < frames; ++k)

  1849.                         audioOut[i][k] *= pData->postProc.volume;

  1850.                 }

  1851.             }

  1852. 

  1853.         } // End of Post-processing

  1854. 

  1855. #endif // BUILD_BRIDGE

  1856. 

  1857.         // --------------------------------------------------------------------------------------------------------

  1858. 

  1859.         pData->singleMutex.unlock();

  1860.         return true;

  1861.     }

  1862. 

  1863.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1864.     {

  1865.         resizeAudioPool(newBufferSize);

  1866. 

  1867.         {

  1868.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1869.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  1870.             fShmNonRtClientControl.writeUInt(newBufferSize);

  1871.             fShmNonRtClientControl.commitWrite();

  1872.         }

  1873. 

  1874.         waitForClient("buffersize", 1);

  1875.     }

  1876. 

  1877.     void sampleRateChanged(const double newSampleRate) override

  1878.     {

  1879.         {

  1880.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1881.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  1882.             fShmNonRtClientControl.writeDouble(newSampleRate);

  1883.             fShmNonRtClientControl.commitWrite();

  1884.         }

  1885. 

  1886.         waitForClient("samplerate", 1);

  1887.     }

  1888. 

  1889.     void offlineModeChanged(const bool isOffline) override

  1890.     {

  1891.         {

  1892.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1893.             fShmNonRtClientControl.writeOpcode(isOffline ? kPluginBridgeNonRtClientSetOffline : kPluginBridgeNonRtClientSetOnline);

  1894.             fShmNonRtClientControl.commitWrite();

  1895.         }

  1896. 

  1897.         waitForClient("offline", 1);

  1898.     }

  1899. 

  1900.     // -------------------------------------------------------------------

  1901.     // Plugin buffers

  1902. 

  1903.     void clearBuffers() noexcept override

  1904.     {

  1905.         if (fParams != nullptr)

  1906.         {

  1907.             delete[] fParams;

  1908.             fParams = nullptr;

  1909.         }

  1910. 

  1911.         CarlaPlugin::clearBuffers();

  1912.     }

  1913. 

  1914.     // -------------------------------------------------------------------

  1915.     // Post-poned UI Stuff

  1916. 

  1917.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  1918.     {

  1919.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  1920. 

  1921.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1922. 

  1923.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiParameterChange);

  1924.         fShmNonRtClientControl.writeUInt(index);

  1925.         fShmNonRtClientControl.writeFloat(value);

  1926.         fShmNonRtClientControl.commitWrite();

  1927.     }

  1928. 

  1929.     void uiProgramChange(const uint32_t index) noexcept override

  1930.     {

  1931.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1932. 

  1933.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1934. 

  1935.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiProgramChange);

  1936.         fShmNonRtClientControl.writeUInt(index);

  1937.         fShmNonRtClientControl.commitWrite();

  1938.     }

  1939. 

  1940.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1941.     {

  1942.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1943. 

  1944.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1945. 

  1946.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiMidiProgramChange);

  1947.         fShmNonRtClientControl.writeUInt(index);

  1948.         fShmNonRtClientControl.commitWrite();

  1949.     }

  1950. 

  1951.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1952.     {

  1953.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1954.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1955.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  1956. 

  1957.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1958. 

  1959.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOn);

  1960.         fShmNonRtClientControl.writeByte(channel);

  1961.         fShmNonRtClientControl.writeByte(note);

  1962.         fShmNonRtClientControl.writeByte(velo);

  1963.         fShmNonRtClientControl.commitWrite();

  1964.     }

  1965. 

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

  1967.     {

  1968.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1969.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1970. 

  1971.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1972. 

  1973.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOff);

  1974.         fShmNonRtClientControl.writeByte(channel);

  1975.         fShmNonRtClientControl.writeByte(note);

  1976.         fShmNonRtClientControl.commitWrite();

  1977.     }

  1978. 

  1979.     // -------------------------------------------------------------------

  1980. 

  1981.     void handleNonRtData()

  1982.     {

  1983.         for (; fShmNonRtServerControl.isDataAvailableForReading();)

  1984.         {

  1985.             const PluginBridgeNonRtServerOpcode opcode(fShmNonRtServerControl.readOpcode());

  1986. #ifdef DEBUG

  1987.             if (opcode != kPluginBridgeNonRtServerPong) {

  1988.                 carla_debug("CarlaPluginBridge::handleNonRtData() - got opcode: %s", PluginBridgeNonRtServerOpcode2str(opcode));

  1989.             }

  1990. #endif

  1991.             if (opcode != kPluginBridgeNonRtServerNull && fLastPongTime > 0)

  1992.                 fLastPongTime = Time::currentTimeMillis();

  1993. 

  1994.             switch (opcode)

  1995.             {

  1996.             case kPluginBridgeNonRtServerNull:

  1997.             case kPluginBridgeNonRtServerPong:

  1998.                 break;

  1999. 

  2000.             case kPluginBridgeNonRtServerPluginInfo1: {

  2001.                 // uint/category, uint/hints, uint/optionsAvailable, uint/optionsEnabled, long/uniqueId

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

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

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

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

  2006.                 const  int64_t uniqueId = fShmNonRtServerControl.readLong();

  2007. 

  2008.                 CARLA_SAFE_ASSERT_INT2(fUniqueId == uniqueId, fUniqueId, uniqueId);

  2009. 

  2010.                 pData->hints   = hints | PLUGIN_IS_BRIDGE;

  2011.                 pData->options = optionEn;

  2012. 

  2013.                 fInfo.category = static_cast<PluginCategory>(category);

  2014.                 fInfo.optionsAvailable = optionAv;

  2015.             }   break;

  2016. 

  2017.             case kPluginBridgeNonRtServerPluginInfo2: {

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

  2019. 

  2020.                 // realName

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

  2022.                 char realName[realNameSize+1];

  2023.                 carla_zeroChars(realName, realNameSize+1);

  2024.                 fShmNonRtServerControl.readCustomData(realName, realNameSize);

  2025. 

  2026.                 // label

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

  2028.                 char label[labelSize+1];

  2029.                 carla_zeroChars(label, labelSize+1);

  2030.                 fShmNonRtServerControl.readCustomData(label, labelSize);

  2031. 

  2032.                 // maker

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

  2034.                 char maker[makerSize+1];

  2035.                 carla_zeroChars(maker, makerSize+1);

  2036.                 fShmNonRtServerControl.readCustomData(maker, makerSize);

  2037. 

  2038.                 // copyright

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

  2040.                 char copyright[copyrightSize+1];

  2041.                 carla_zeroChars(copyright, copyrightSize+1);

  2042.                 fShmNonRtServerControl.readCustomData(copyright, copyrightSize);

  2043. 

  2044.                 fInfo.name  = realName;

  2045.                 fInfo.label = label;

  2046.                 fInfo.maker = maker;

  2047.                 fInfo.copyright = copyright;

  2048. 

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

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

  2051.             }   break;

  2052. 

  2053.             case kPluginBridgeNonRtServerAudioCount: {

  2054.                 // uint/ins, uint/outs

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

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

  2057.             }   break;

  2058. 

  2059.             case kPluginBridgeNonRtServerMidiCount: {

  2060.                 // uint/ins, uint/outs

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

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

  2063.             }   break;

  2064. 

  2065.             case kPluginBridgeNonRtServerParameterCount: {

  2066.                 // uint/count

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

  2068. 

  2069.                 // delete old data

  2070.                 pData->param.clear();

  2071. 

  2072.                 if (fParams != nullptr)

  2073.                 {

  2074.                     delete[] fParams;

  2075.                     fParams = nullptr;

  2076.                 }

  2077. 

  2078.                 if (count > 0)

  2079.                 {

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

  2081.                     fParams = new BridgeParamInfo[count];

  2082. 

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

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

  2085.                     {

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

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

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

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

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

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

  2092.                     }

  2093.                 }

  2094.             }   break;

  2095. 

  2096.             case kPluginBridgeNonRtServerProgramCount: {

  2097.                 // uint/count

  2098.                 pData->prog.clear();

  2099. 

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

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

  2102. 

  2103.             }   break;

  2104. 

  2105.             case kPluginBridgeNonRtServerMidiProgramCount: {

  2106.                 // uint/count

  2107.                 pData->midiprog.clear();

  2108. 

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

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

  2111. 

  2112.             }   break;

  2113. 

  2114.             case kPluginBridgeNonRtServerParameterData1: {

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

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

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

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

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

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

  2121. 

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

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

  2124. 

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

  2126.                 {

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

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

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

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

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

  2132.                 }

  2133.             }   break;

  2134. 

  2135.             case kPluginBridgeNonRtServerParameterData2: {

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

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

  2138. 

  2139.                 // name

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

  2141.                 char name[nameSize+1];

  2142.                 carla_zeroChars(name, nameSize+1);

  2143.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2144. 

  2145.                 // symbol

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

  2147.                 char symbol[symbolSize+1];

  2148.                 carla_zeroChars(symbol, symbolSize+1);

  2149.                 fShmNonRtServerControl.readCustomData(symbol, symbolSize);

  2150. 

  2151.                 // unit

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

  2153.                 char unit[unitSize+1];

  2154.                 carla_zeroChars(unit, unitSize+1);

  2155.                 fShmNonRtServerControl.readCustomData(unit, unitSize);

  2156. 

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

  2158. 

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

  2160.                 {

  2161.                     fParams[index].name   = name;

  2162.                     fParams[index].symbol = symbol;

  2163.                     fParams[index].unit   = unit;

  2164.                 }

  2165.             }   break;

  2166. 

  2167.             case kPluginBridgeNonRtServerParameterRanges: {

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

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

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

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

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

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

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

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

  2176. 

  2177.                 CARLA_SAFE_ASSERT_BREAK(min < max);

  2178.                 CARLA_SAFE_ASSERT_BREAK(def >= min);

  2179.                 CARLA_SAFE_ASSERT_BREAK(def <= max);

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

  2181. 

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

  2183.                 {

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

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

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

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

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

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

  2190.                 }

  2191.             }   break;

  2192. 

  2193.             case kPluginBridgeNonRtServerParameterValue: {

  2194.                 // uint/index, float/value

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

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

  2197. 

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

  2199.                 {

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

  2201.                     fParams[index].value = fixedValue;

  2202. 

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

  2204.                 }

  2205.             }   break;

  2206. 

  2207.             case kPluginBridgeNonRtServerParameterValue2: {

  2208.                 // uint/index, float/value

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

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

  2211. 

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

  2213.                 {

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

  2215.                     fParams[index].value = fixedValue;

  2216.                 }

  2217.             }   break;

  2218. 

  2219.             case kPluginBridgeNonRtServerDefaultValue: {

  2220.                 // uint/index, float/value

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

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

  2223. 

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

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

  2226.             }   break;

  2227. 

  2228.             case kPluginBridgeNonRtServerCurrentProgram: {

  2229.                 // int/index

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

  2231. 

  2232.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

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

  2234. 

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

  2236.             }   break;

  2237. 

  2238.             case kPluginBridgeNonRtServerCurrentMidiProgram: {

  2239.                 // int/index

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

  2241. 

  2242.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

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

  2244. 

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

  2246.             }   break;

  2247. 

  2248.             case kPluginBridgeNonRtServerProgramName: {

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

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

  2251. 

  2252.                 // name

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

  2254.                 char name[nameSize+1];

  2255.                 carla_zeroChars(name, nameSize+1);

  2256.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2257. 

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

  2259. 

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

  2261.                 {

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

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

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

  2265.                 }

  2266.             }   break;

  2267. 

  2268.             case kPluginBridgeNonRtServerMidiProgramData: {

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

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

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

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

  2273. 

  2274.                 // name

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

  2276.                 char name[nameSize+1];

  2277.                 carla_zeroChars(name, nameSize+1);

  2278.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2279. 

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

  2281. 

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

  2283.                 {

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

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

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

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

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

  2289.                 }

  2290.             }   break;

  2291. 

  2292.             case kPluginBridgeNonRtServerSetCustomData: {

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

  2294. 

  2295.                 // type

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

  2297.                 char type[typeSize+1];

  2298.                 carla_zeroChars(type, typeSize+1);

  2299.                 fShmNonRtServerControl.readCustomData(type, typeSize);

  2300. 

  2301.                 // key

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

  2303.                 char key[keySize+1];

  2304.                 carla_zeroChars(key, keySize+1);

  2305.                 fShmNonRtServerControl.readCustomData(key, keySize);

  2306. 

  2307.                 // value

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

  2309.                 char value[valueSize+1];

  2310.                 carla_zeroChars(value, valueSize+1);

  2311.                 fShmNonRtServerControl.readCustomData(value, valueSize);

  2312. 

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

  2314.             }   break;

  2315. 

  2316.             case kPluginBridgeNonRtServerSetChunkDataFile: {

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

  2318. 

  2319.                 // chunkFilePath

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

  2321.                 char chunkFilePath[chunkFilePathSize+1];

  2322.                 carla_zeroChars(chunkFilePath, chunkFilePathSize+1);

  2323.                 fShmNonRtServerControl.readCustomData(chunkFilePath, chunkFilePathSize);

  2324. 

  2325.                 String realChunkFilePath(chunkFilePath);

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

  2327. 

  2328. #ifndef CARLA_OS_WIN

  2329.                 // Using Wine, fix temp dir

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

  2331.                 {

  2332.                     // Get WINEPREFIX

  2333.                     String wineDir;

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

  2335.                         wineDir = String(WINEPREFIX);

  2336.                     else

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

  2338. 

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

  2340. 

  2341.                     realChunkFilePath  = wineDir;

  2342.                     realChunkFilePath += "/drive_";

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

  2344.                     realChunkFilePath += "/";

  2345.                     realChunkFilePath += driveLetterSplit[1];

  2346. 

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

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

  2349.                 }

  2350. #endif

  2351. 

  2352.                 File chunkFile(realChunkFilePath);

  2353. 

  2354.                 if (chunkFile.existsAsFile())

  2355.                 {

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

  2357.                     chunkFile.deleteFile();

  2358.                     carla_stderr("chunk data final");

  2359.                 }

  2360.             }   break;

  2361. 

  2362.             case kPluginBridgeNonRtServerSetLatency: {

  2363.                 // uint

  2364.             }   break;

  2365. 

  2366.             case kPluginBridgeNonRtServerReady:

  2367.                 fInitiated = true;

  2368.                 break;

  2369. 

  2370.             case kPluginBridgeNonRtServerSaved:

  2371.                 fSaved = true;

  2372.                 break;

  2373. 

  2374.             case kPluginBridgeNonRtServerUiClosed:

  2375.                 pData->transientTryCounter = 0;

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

  2377.                 break;

  2378. 

  2379.             case kPluginBridgeNonRtServerError: {

  2380.                 // error

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

  2382.                 char error[errorSize+1];

  2383.                 carla_zeroChars(error, errorSize+1);

  2384.                 fShmNonRtServerControl.readCustomData(error, errorSize);

  2385. 

  2386.                 if (fInitiated)

  2387.                 {

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

  2389. 

  2390.                     // just in case

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

  2392.                     fInitError = true;

  2393.                 }

  2394.                 else

  2395.                 {

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

  2397.                     fInitError = true;

  2398.                     fInitiated = true;

  2399.                 }

  2400.             }   break;

  2401.             }

  2402.         }

  2403.     }

  2404. 

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

  2406. 

  2407.     uintptr_t getUiBridgeProcessId() const noexcept override

  2408.     {

  2409.         return fBridgeThread.getProcessPID();

  2410.     }

  2411. 

  2412.     const void* getExtraStuff() const noexcept override

  2413.     {

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

  2415.     }

  2416. 

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

  2418. 

  2419.     bool init(const char* const filename, const char* const name, const char* const label, const int64_t uniqueId, const char* const bridgeBinary)

  2420.     {

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

  2422. 

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

  2424.         // first checks

  2425. 

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

  2427.         {

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

  2429.             return false;

  2430.         }

  2431. 

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

  2433.         {

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

  2435.             return false;

  2436.         }

  2437. 

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

  2439.         // set info

  2440. 

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

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

  2443. 

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

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

  2446.         else

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

  2448. 

  2449.         fUniqueId     = uniqueId;

  2450.         fBridgeBinary = bridgeBinary;

  2451. 

  2452.         std::srand(static_cast<uint>(std::time(nullptr)));

  2453. 

  2454.         // ---------------------------------------------------------------

  2455.         // init sem/shm

  2456. 

  2457.         if (! fShmAudioPool.initialize())

  2458.         {

  2459.             carla_stdout("Failed to initialize shared memory audio pool");

  2460.             return false;

  2461.         }

  2462. 

  2463.         if (! fShmRtClientControl.initialize())

  2464.         {

  2465.             carla_stdout("Failed to initialize RT client control");

  2466.             fShmAudioPool.clear();

  2467.             return false;

  2468.         }

  2469. 

  2470.         if (! fShmNonRtClientControl.initialize())

  2471.         {

  2472.             carla_stdout("Failed to initialize Non-RT client control");

  2473.             fShmRtClientControl.clear();

  2474.             fShmAudioPool.clear();

  2475.             return false;

  2476.         }

  2477. 

  2478.         if (! fShmNonRtServerControl.initialize())

  2479.         {

  2480.             carla_stdout("Failed to initialize Non-RT server control");

  2481.             fShmNonRtClientControl.clear();

  2482.             fShmRtClientControl.clear();

  2483.             fShmAudioPool.clear();

  2484.             return false;

  2485.         }

  2486. 

  2487.         // ---------------------------------------------------------------

  2488. 

  2489.         carla_stdout("Carla Server Info:");

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

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

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

  2493. 

  2494.         // initial values

  2495.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientNull);

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

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

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

  2499. 

  2500.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  2501.         fShmNonRtClientControl.writeUInt(pData->engine->getBufferSize());

  2502. 

  2503.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  2504.         fShmNonRtClientControl.writeDouble(pData->engine->getSampleRate());

  2505. 

  2506.         fShmNonRtClientControl.commitWrite();

  2507. 

  2508.         // init bridge thread

  2509.         {

  2510.             char shmIdsStr[6*4+1];

  2511.             carla_zeroChars(shmIdsStr, 6*4+1);

  2512. 

  2513.             std::strncpy(shmIdsStr+6*0, &fShmAudioPool.filename[fShmAudioPool.filename.length()-6], 6);

  2514.             std::strncpy(shmIdsStr+6*1, &fShmRtClientControl.filename[fShmRtClientControl.filename.length()-6], 6);

  2515.             std::strncpy(shmIdsStr+6*2, &fShmNonRtClientControl.filename[fShmNonRtClientControl.filename.length()-6], 6);

  2516.             std::strncpy(shmIdsStr+6*3, &fShmNonRtServerControl.filename[fShmNonRtServerControl.filename.length()-6], 6);

  2517. 

  2518.             fBridgeThread.setData(bridgeBinary, label, shmIdsStr);

  2519.             fBridgeThread.startThread();

  2520.         }

  2521. 

  2522.         fInitiated = false;

  2523.         fLastPongTime = Time::currentTimeMillis();

  2524.         CARLA_SAFE_ASSERT(fLastPongTime > 0);

  2525. 

  2526.         static bool sFirstInit = true;

  2527. 

  2528.         int64_t timeoutEnd = 5000;

  2529. 

  2530.         if (sFirstInit)

  2531.             timeoutEnd *= 2;

  2532. #ifndef CARLA_OS_WIN

  2533.          if (fBinaryType == BINARY_WIN32 || fBinaryType == BINARY_WIN64)

  2534.             timeoutEnd *= 2;

  2535. #endif

  2536.         sFirstInit = false;

  2537. 

  2538.         const bool needsEngineIdle = pData->engine->getType() != kEngineTypePlugin;

  2539. 

  2540.         for (; Time::currentTimeMillis() < fLastPongTime + timeoutEnd && fBridgeThread.isThreadRunning();)

  2541.         {

  2542.             pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2543. 

  2544.             if (needsEngineIdle)

  2545.                 pData->engine->idle();

  2546. 

  2547.             idle();

  2548. 

  2549.             if (fInitiated)

  2550.                 break;

  2551. 

  2552.             carla_msleep(20);

  2553.         }

  2554. 

  2555.         fLastPongTime = -1;

  2556. 

  2557.         if (fInitError || ! fInitiated)

  2558.         {

  2559.             fBridgeThread.stopThread(6000);

  2560. 

  2561.             if (! fInitError)

  2562.                 pData->engine->setLastError("Timeout while waiting for a response from plugin-bridge\n(or the plugin crashed on initialization?)");

  2563. 

  2564.             return false;

  2565.         }

  2566. 

  2567.         // ---------------------------------------------------------------

  2568.         // register client

  2569. 

  2570.         if (pData->name == nullptr)

  2571.         {

  2572.             if (label != nullptr && label[0] != '\0')

  2573.                 pData->name = pData->engine->getUniquePluginName(label);

  2574.             else

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

  2576.         }

  2577. 

  2578.         pData->client = pData->engine->addClient(this);

  2579. 

  2580.         if (pData->client == nullptr || ! pData->client->isOk())

  2581.         {

  2582.             pData->engine->setLastError("Failed to register plugin client");

  2583.             return false;

  2584.         }

  2585. 

  2586.         return true;

  2587.     }

  2588. 

  2589. private:

  2590.     const BinaryType fBinaryType;

  2591.     const PluginType fPluginType;

  2592. 

  2593.     bool fInitiated;

  2594.     bool fInitError;

  2595.     bool fSaved;

  2596.     bool fTimedOut;

  2597.     bool fTimedError;

  2598. 

  2599.     int64_t fLastPongTime;

  2600. 

  2601.     CarlaString             fBridgeBinary;

  2602.     CarlaPluginBridgeThread fBridgeThread;

  2603. 

  2604.     BridgeAudioPool          fShmAudioPool;

  2605.     BridgeRtClientControl    fShmRtClientControl;

  2606.     BridgeNonRtClientControl fShmNonRtClientControl;

  2607.     BridgeNonRtServerControl fShmNonRtServerControl;

  2608. 

  2609.     struct Info {

  2610.         uint32_t aIns, aOuts;

  2611.         uint32_t cvIns, cvOuts;

  2612.         uint32_t mIns, mOuts;

  2613.         PluginCategory category;

  2614.         uint optionsAvailable;

  2615.         CarlaString name;

  2616.         CarlaString label;

  2617.         CarlaString maker;

  2618.         CarlaString copyright;

  2619.         std::vector<uint8_t> chunk;

  2620. 

  2621.         Info()

  2622.             : aIns(0),

  2623.               aOuts(0),

  2624.               cvIns(0),

  2625.               cvOuts(0),

  2626.               mIns(0),

  2627.               mOuts(0),

  2628.               category(PLUGIN_CATEGORY_NONE),

  2629.               optionsAvailable(0),

  2630.               name(),

  2631.               label(),

  2632.               maker(),

  2633.               copyright(),

  2634.               chunk() {}

  2635.     } fInfo;

  2636. 

  2637.     int64_t fUniqueId;

  2638. 

  2639.     BridgeParamInfo* fParams;

  2640. 

  2641.     void resizeAudioPool(const uint32_t bufferSize)

  2642.     {

  2643.         fShmAudioPool.resize(bufferSize, fInfo.aIns+fInfo.aOuts, fInfo.cvIns+fInfo.cvOuts);

  2644. 

  2645.         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientSetAudioPool);

  2646.         fShmRtClientControl.writeULong(static_cast<uint64_t>(fShmAudioPool.size));

  2647. 

  2648.         fShmRtClientControl.commitWrite();

  2649. 

  2650.         waitForClient("resize-pool");

  2651.     }

  2652. 

  2653.     void waitForClient(const char* const action, const uint secs = 5)

  2654.     {

  2655.         CARLA_SAFE_ASSERT_RETURN(! fTimedOut,);

  2656.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  2657. 

  2658.         if (fShmRtClientControl.waitForClient(secs, &fTimedOut))

  2659.             return;

  2660. 

  2661.         if (fTimedOut)

  2662.         {

  2663.             carla_stderr("waitForClient(%s) timeout here", action);

  2664.         }

  2665.         else

  2666.         {

  2667.             fTimedError = true;

  2668.             carla_stderr("waitForClient(%s) error while waiting", action);

  2669.         }

  2670.     }

  2671. 

  2672.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginBridge)

  2673. };

  2674. 

  2675. CARLA_BACKEND_END_NAMESPACE

  2676. 

  2677. // -------------------------------------------------------------------------------------------------------------------

  2678. 

  2679. CARLA_BACKEND_START_NAMESPACE

  2680. 

  2681. CarlaPlugin* CarlaPlugin::newBridge(const Initializer& init, BinaryType btype, PluginType ptype, const char* const bridgeBinary)

  2682. {

  2683.     carla_debug("CarlaPlugin::newBridge({%p, \"%s\", \"%s\", \"%s\"}, %s, %s, \"%s\")", init.engine, init.filename, init.name, init.label, BinaryType2Str(btype), PluginType2Str(ptype), bridgeBinary);

  2684. 

  2685.     if (bridgeBinary == nullptr || bridgeBinary[0] == '\0')

  2686.     {

  2687.         init.engine->setLastError("Bridge not possible, bridge-binary not found");

  2688.         return nullptr;

  2689.     }

  2690. 

  2691.     CarlaPluginBridge* const plugin(new CarlaPluginBridge(init.engine, init.id, btype, ptype));

  2692. 

  2693.     if (! plugin->init(init.filename, init.name, init.label, init.uniqueId, bridgeBinary))

  2694.     {

  2695.         delete plugin;

  2696.         return nullptr;

  2697.     }

  2698. 

  2699.     return plugin;

  2700. }

  2701. 

  2702. CARLA_BACKEND_END_NAMESPACE

  2703. 

  2704. // -------------------------------------------------------------------------------------------------------------------