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

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  1. /*

  2.  * Carla Plugin Bridge

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

  4.  *

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

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

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

  8.  * the License, or any later version.

  9.  *

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

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

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

  13.  * GNU General Public License for more details.

  14.  *

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

  16.  */

  17. 

  18. #ifdef BUILD_BRIDGE

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

  20. #endif

  21. 

  22. #include "CarlaPluginInternal.hpp"

  23. 

  24. #include "CarlaBackendUtils.hpp"

  25. #include "CarlaBase64Utils.hpp"

  26. #include "CarlaBridgeUtils.hpp"

  27. #include "CarlaEngineUtils.hpp"

  28. #include "CarlaMathUtils.hpp"

  29. #include "CarlaShmUtils.hpp"

  30. #include "CarlaThread.hpp"

  31. 

  32. #include "jackbridge/JackBridge.hpp"

  33. 

  34. #include <ctime>

  35. 

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

  37. 

  38. using juce::ChildProcess;

  39. using juce::File;

  40. using juce::ScopedPointer;

  41. using juce::String;

  42. using juce::StringArray;

  43. using juce::Time;

  44. 

  45. CARLA_BACKEND_START_NAMESPACE

  46. 

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

  48. 

  49. struct BridgeAudioPool {

  50.     CarlaString filename;

  51.     std::size_t size;

  52.     float* data;

  53.     shm_t shm;

  54. 

  55.     BridgeAudioPool() noexcept

  56.         : filename(),

  57.           size(0),

  58.           data(nullptr)

  59. #ifdef CARLA_PROPER_CPP11_SUPPORT

  60.         , shm(shm_t_INIT) {}

  61. #else

  62.     {

  63.         shm = shm_t_INIT;

  64.     }

  65. #endif

  66. 

  67.     ~BridgeAudioPool() noexcept

  68.     {

  69.         // should be cleared by now

  70.         CARLA_SAFE_ASSERT(data == nullptr);

  71. 

  72.         clear();

  73.     }

  74. 

  75.     bool initialize() noexcept

  76.     {

  77.         char tmpFileBase[64];

  78. 

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

  80. 

  81.         shm = carla_shm_create_temp(tmpFileBase);

  82. 

  83.         if (! carla_is_shm_valid(shm))

  84.             return false;

  85. 

  86.         filename = tmpFileBase;

  87.         return true;

  88.     }

  89. 

  90.     void clear() noexcept

  91.     {

  92.         filename.clear();

  93. 

  94.         if (! carla_is_shm_valid(shm))

  95.         {

  96.             CARLA_SAFE_ASSERT(data == nullptr);

  97.             return;

  98.         }

  99. 

  100.         if (data != nullptr)

  101.         {

  102.             carla_shm_unmap(shm, data);

  103.             data = nullptr;

  104.         }

  105. 

  106.         size = 0;

  107.         carla_shm_close(shm);

  108.         carla_shm_init(shm);

  109.     }

  110. 

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

  112.     {

  113.         CARLA_SAFE_ASSERT_RETURN(carla_is_shm_valid(shm),);

  114. 

  115.         if (data != nullptr)

  116.             carla_shm_unmap(shm, data);

  117. 

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

  119. 

  120.         if (size == 0)

  121.             size = sizeof(float);

  122. 

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

  124.     }

  125. 

  126.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeAudioPool)

  127. };

  128. 

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

  130. 

  131. struct BridgeRtClientControl : public CarlaRingBufferControl<SmallStackBuffer> {

  132.     BridgeRtClientData* data;

  133.     CarlaString filename;

  134.     bool needsSemDestroy;

  135.     shm_t shm;

  136. 

  137.     BridgeRtClientControl()

  138.         : data(nullptr),

  139.           filename(),

  140.           needsSemDestroy(false),

  141. #ifdef CARLA_PROPER_CPP11_SUPPORT

  142.           shm(shm_t_INIT) {}

  143. #else

  144.     {

  145.         shm = shm_t_INIT;

  146.     }

  147. #endif

  148. 

  149.     ~BridgeRtClientControl() noexcept override

  150.     {

  151.         // should be cleared by now

  152.         CARLA_SAFE_ASSERT(data == nullptr);

  153. 

  154.         clear();

  155.     }

  156. 

  157.     bool initialize() noexcept

  158.     {

  159.         char tmpFileBase[64];

  160. 

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

  162. 

  163.         shm = carla_shm_create_temp(tmpFileBase);

  164. 

  165.         if (! carla_is_shm_valid(shm))

  166.             return false;

  167. 

  168.         if (! mapData())

  169.         {

  170.             carla_shm_close(shm);

  171.             carla_shm_init(shm);

  172.             return false;

  173.         }

  174. 

  175.         CARLA_SAFE_ASSERT(data != nullptr);

  176. 

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

  178.         {

  179.             unmapData();

  180.             carla_shm_close(shm);

  181.             carla_shm_init(shm);

  182.             return false;

  183.         }

  184. 

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

  186.         {

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

  188.             unmapData();

  189.             carla_shm_close(shm);

  190.             carla_shm_init(shm);

  191.             return false;

  192.         }

  193. 

  194.         filename = tmpFileBase;

  195.         needsSemDestroy = true;

  196.         return true;

  197.     }

  198. 

  199.     void clear() noexcept

  200.     {

  201.         filename.clear();

  202. 

  203.         if (needsSemDestroy)

  204.         {

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

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

  207.             needsSemDestroy = false;

  208.         }

  209. 

  210.         if (data != nullptr)

  211.             unmapData();

  212. 

  213.         if (! carla_is_shm_valid(shm))

  214.             return;

  215. 

  216.         carla_shm_close(shm);

  217.         carla_shm_init(shm);

  218.     }

  219. 

  220.     bool mapData() noexcept

  221.     {

  222.         CARLA_SAFE_ASSERT(data == nullptr);

  223. 

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

  225.         {

  226.             carla_zeroStruct(data->sem);

  227.             carla_zeroStruct(data->timeInfo);

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

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

  230.             return true;

  231.         }

  232. 

  233.         return false;

  234.     }

  235. 

  236.     void unmapData() noexcept

  237.     {

  238.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  239. 

  240.         carla_shm_unmap(shm, data);

  241.         data = nullptr;

  242. 

  243.         setRingBuffer(nullptr, false);

  244.     }

  245. 

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

  247.     {

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

  249. 

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

  251. 

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

  253.     }

  254. 

  255.     void writeOpcode(const PluginBridgeRtClientOpcode opcode) noexcept

  256.     {

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

  258.     }

  259. 

  260.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeRtClientControl)

  261. };

  262. 

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

  264. 

  265. struct BridgeNonRtClientControl : public CarlaRingBufferControl<BigStackBuffer> {

  266.     BridgeNonRtClientData* data;

  267.     CarlaString filename;

  268.     CarlaMutex mutex;

  269.     shm_t shm;

  270. 

  271.     BridgeNonRtClientControl() noexcept

  272.         : data(nullptr),

  273.           filename(),

  274.           mutex()

  275. #ifdef CARLA_PROPER_CPP11_SUPPORT

  276.         , shm(shm_t_INIT) {}

  277. #else

  278.     {

  279.         shm = shm_t_INIT;

  280.     }

  281. #endif

  282. 

  283.     ~BridgeNonRtClientControl() noexcept override

  284.     {

  285.         // should be cleared by now

  286.         CARLA_SAFE_ASSERT(data == nullptr);

  287. 

  288.         clear();

  289.     }

  290. 

  291.     bool initialize() noexcept

  292.     {

  293.         char tmpFileBase[64];

  294. 

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

  296. 

  297.         shm = carla_shm_create_temp(tmpFileBase);

  298. 

  299.         if (! carla_is_shm_valid(shm))

  300.             return false;

  301. 

  302.         if (! mapData())

  303.         {

  304.             carla_shm_close(shm);

  305.             carla_shm_init(shm);

  306.             return false;

  307.         }

  308. 

  309.         CARLA_SAFE_ASSERT(data != nullptr);

  310. 

  311.         filename = tmpFileBase;

  312.         return true;

  313.     }

  314. 

  315.     void clear() noexcept

  316.     {

  317.         filename.clear();

  318. 

  319.         if (data != nullptr)

  320.             unmapData();

  321. 

  322.         if (! carla_is_shm_valid(shm))

  323.             return;

  324. 

  325.         carla_shm_close(shm);

  326.         carla_shm_init(shm);

  327.     }

  328. 

  329.     bool mapData() noexcept

  330.     {

  331.         CARLA_SAFE_ASSERT(data == nullptr);

  332. 

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

  334.         {

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

  336.             return true;

  337.         }

  338. 

  339.         return false;

  340.     }

  341. 

  342.     void unmapData() noexcept

  343.     {

  344.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  345. 

  346.         carla_shm_unmap(shm, data);

  347.         data = nullptr;

  348. 

  349.         setRingBuffer(nullptr, false);

  350.     }

  351. 

  352.     void writeOpcode(const PluginBridgeNonRtClientOpcode opcode) noexcept

  353.     {

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

  355.     }

  356. 

  357.     void waitIfDataIsReachingLimit() noexcept

  358.     {

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

  360.             return;

  361. 

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

  363.         {

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

  365.             {

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

  367.                 writeOpcode(kPluginBridgeNonRtClientPing);

  368.                 commitWrite();

  369.                 return;

  370.             }

  371.             carla_msleep(20);

  372.         }

  373. 

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

  375.     }

  376. 

  377.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtClientControl)

  378. };

  379. 

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

  381. 

  382. struct BridgeNonRtServerControl : public CarlaRingBufferControl<HugeStackBuffer> {

  383.     BridgeNonRtServerData* data;

  384.     CarlaString filename;

  385.     shm_t shm;

  386. 

  387.     BridgeNonRtServerControl() noexcept

  388.         : data(nullptr),

  389.           filename()

  390. #ifdef CARLA_PROPER_CPP11_SUPPORT

  391.         , shm(shm_t_INIT) {}

  392. #else

  393.     {

  394.         shm = shm_t_INIT;

  395.     }

  396. #endif

  397. 

  398.     ~BridgeNonRtServerControl() noexcept override

  399.     {

  400.         // should be cleared by now

  401.         CARLA_SAFE_ASSERT(data == nullptr);

  402. 

  403.         clear();

  404.     }

  405. 

  406.     bool initialize() noexcept

  407.     {

  408.         char tmpFileBase[64];

  409. 

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

  411. 

  412.         shm = carla_shm_create_temp(tmpFileBase);

  413. 

  414.         if (! carla_is_shm_valid(shm))

  415.             return false;

  416. 

  417.         if (! mapData())

  418.         {

  419.             carla_shm_close(shm);

  420.             carla_shm_init(shm);

  421.             return false;

  422.         }

  423. 

  424.         CARLA_SAFE_ASSERT(data != nullptr);

  425. 

  426.         filename = tmpFileBase;

  427.         return true;

  428.     }

  429. 

  430.     void clear() noexcept

  431.     {

  432.         filename.clear();

  433. 

  434.         if (data != nullptr)

  435.             unmapData();

  436. 

  437.         if (! carla_is_shm_valid(shm))

  438.             return;

  439. 

  440.         carla_shm_close(shm);

  441.         carla_shm_init(shm);

  442.     }

  443. 

  444.     bool mapData() noexcept

  445.     {

  446.         CARLA_SAFE_ASSERT(data == nullptr);

  447. 

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

  449.         {

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

  451.             return true;

  452.         }

  453. 

  454.         return false;

  455.     }

  456. 

  457.     void unmapData() noexcept

  458.     {

  459.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  460. 

  461.         carla_shm_unmap(shm, data);

  462.         data = nullptr;

  463. 

  464.         setRingBuffer(nullptr, false);

  465.     }

  466. 

  467.     PluginBridgeNonRtServerOpcode readOpcode() noexcept

  468.     {

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

  470.     }

  471. 

  472.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtServerControl)

  473. };

  474. 

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

  476. 

  477. struct BridgeParamInfo {

  478.     float value;

  479.     CarlaString name;

  480.     CarlaString symbol;

  481.     CarlaString unit;

  482. 

  483.     BridgeParamInfo() noexcept

  484.         : value(0.0f),

  485.           name(),

  486.           symbol(),

  487.           unit() {}

  488. 

  489.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeParamInfo)

  490. };

  491. 

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

  493. 

  494. class CarlaPluginBridgeThread : public CarlaThread

  495. {

  496. public:

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

  498.         : CarlaThread("CarlaPluginBridgeThread"),

  499.           kEngine(engine),

  500.           kPlugin(plugin),

  501.           fBinary(),

  502.           fLabel(),

  503.           fShmIds(),

  504.           fProcess(),

  505.           leakDetector_CarlaPluginBridgeThread() {}

  506. 

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

  508.     {

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

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

  511.         CARLA_SAFE_ASSERT(! isThreadRunning());

  512. 

  513.         fBinary = binary;

  514.         fShmIds = shmIds;

  515. 

  516.         if (label != nullptr)

  517.             fLabel = label;

  518.         if (fLabel.isEmpty())

  519.             fLabel = "\"\"";

  520.     }

  521. 

  522.     uintptr_t getProcessPID() const noexcept

  523.     {

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

  525. 

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

  527.     }

  528. 

  529. protected:

  530.     void run()

  531.     {

  532.         if (fProcess == nullptr)

  533.         {

  534.             fProcess = new ChildProcess();

  535.         }

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

  537.         {

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

  539.         }

  540. 

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

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

  543. 

  544.         if (name.isEmpty())

  545.             name = "(none)";

  546. 

  547.         if (filename.isEmpty())

  548.             filename = "\"\"";

  549. 

  550.         StringArray arguments;

  551. 

  552. #ifndef CARLA_OS_WIN

  553.         // start with "wine" if needed

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

  555.             arguments.add("wine");

  556. #endif

  557. 

  558.         // binary

  559.         arguments.add(fBinary);

  560. 

  561.         // plugin type

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

  563. 

  564.         // filename

  565.         arguments.add(filename);

  566. 

  567.         // label

  568.         arguments.add(fLabel);

  569. 

  570.         // uniqueId

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

  572. 

  573.         bool started;

  574. 

  575.         {

  576.             char strBuf[STR_MAX+1];

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

  578. 

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

  580.             const ScopedEngineEnvironmentLocker _seel(kEngine);

  581. 

  582. #ifdef CARLA_OS_LINUX

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

  584. 

  585.             if (oldPreload != nullptr)

  586.                 ::unsetenv("LD_PRELOAD");

  587. #endif

  588. 

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

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

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

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

  593. 

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

  595.             carla_setenv("ENGINE_OPTION_MAX_PARAMETERS", strBuf);

  596. 

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

  598.             carla_setenv("ENGINE_OPTION_UI_BRIDGES_TIMEOUT",strBuf);

  599. 

  600.             if (options.pathLADSPA != nullptr)

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

  602.             else

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

  604. 

  605.             if (options.pathDSSI != nullptr)

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

  607.             else

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

  609. 

  610.             if (options.pathLV2 != nullptr)

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

  612.             else

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

  614. 

  615.             if (options.pathVST2 != nullptr)

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

  617.             else

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

  619. 

  620.             if (options.pathVST3 != nullptr)

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

  622.             else

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

  624. 

  625.             if (options.pathAU != nullptr)

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

  627.             else

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

  629. 

  630.             if (options.pathGIG != nullptr)

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

  632.             else

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

  634. 

  635.             if (options.pathSF2 != nullptr)

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

  637.             else

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

  639. 

  640.             if (options.pathSFZ != nullptr)

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

  642.             else

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

  644. 

  645.             if (options.binaryDir != nullptr)

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

  647.             else

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

  649. 

  650.             if (options.resourceDir != nullptr)

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

  652.             else

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

  654. 

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

  656. 

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

  658.             carla_setenv("ENGINE_OPTION_FRONTEND_WIN_ID", strBuf);

  659. 

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

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

  662. 

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

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

  665. 

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

  667. 

  668. #ifdef CARLA_OS_LINUX

  669.             if (oldPreload != nullptr)

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

  671. #endif

  672.         }

  673. 

  674.         if (! started)

  675.         {

  676.             carla_stdout("failed!");

  677.             fProcess = nullptr;

  678.             return;

  679.         }

  680. 

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

  682.             carla_sleep(1);

  683. 

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

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

  686.         {

  687.             fProcess->waitForProcessToFinish(2000);

  688. 

  689.             if (fProcess->isRunning())

  690.             {

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

  692.                 fProcess->kill();

  693.             }

  694.             else

  695.             {

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

  697.             }

  698.         }

  699.         else

  700.         {

  701.             // forced quit, may have crashed

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

  703.             {

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

  705. 

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

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

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

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

  710.             }

  711.             else

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

  713.         }

  714. 

  715.         carla_stdout("plugin bridge finished");

  716.         fProcess = nullptr;

  717.     }

  718. 

  719. private:

  720.     CarlaEngine* const kEngine;

  721.     CarlaPlugin* const kPlugin;

  722. 

  723.     String fBinary;

  724.     String fLabel;

  725.     String fShmIds;

  726. 

  727.     ScopedPointer<ChildProcess> fProcess;

  728. 

  729.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginBridgeThread)

  730. };

  731. 

  732. // -------------------------------------------------------------------------------------------------------------------

  733. 

  734. class CarlaPluginBridge : public CarlaPlugin

  735. {

  736. public:

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

  738.         : CarlaPlugin(engine, id),

  739.           fBinaryType(btype),

  740.           fPluginType(ptype),

  741.           fInitiated(false),

  742.           fInitError(false),

  743.           fSaved(true),

  744.           fTimedOut(false),

  745.           fTimedError(false),

  746.           fLastPongTime(-1),

  747.           fBridgeBinary(),

  748.           fBridgeThread(engine, this),

  749.           fShmAudioPool(),

  750.           fShmRtClientControl(),

  751.           fShmNonRtClientControl(),

  752.           fShmNonRtServerControl(),

  753.           fInfo(),

  754.           fParams(nullptr),

  755.           leakDetector_CarlaPluginBridge()

  756.     {

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

  758. 

  759.         pData->hints |= PLUGIN_IS_BRIDGE;

  760.     }

  761. 

  762.     ~CarlaPluginBridge() override

  763.     {

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

  765. 

  766.         // close UI

  767.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  768.             pData->transientTryCounter = 0;

  769. 

  770.         pData->singleMutex.lock();

  771.         pData->masterMutex.lock();

  772. 

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

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

  775. 

  776.         if (pData->active)

  777.         {

  778.             deactivate();

  779.             pData->active = false;

  780.         }

  781. 

  782.         if (fBridgeThread.isThreadRunning())

  783.         {

  784.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientQuit);

  785.             fShmNonRtClientControl.commitWrite();

  786. 

  787.             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientQuit);

  788.             fShmRtClientControl.commitWrite();

  789. 

  790.             if (! fTimedOut)

  791.                 waitForClient("stopping", 3);

  792.         }

  793. 

  794.         fBridgeThread.stopThread(3000);

  795. 

  796.         fShmNonRtServerControl.clear();

  797.         fShmNonRtClientControl.clear();

  798.         fShmRtClientControl.clear();

  799.         fShmAudioPool.clear();

  800. 

  801.         clearBuffers();

  802. 

  803.         fInfo.chunk.clear();

  804.     }

  805. 

  806.     // -------------------------------------------------------------------

  807.     // Information (base)

  808. 

  809.     BinaryType getBinaryType() const noexcept

  810.     {

  811.         return fBinaryType;

  812.     }

  813. 

  814.     PluginType getType() const noexcept override

  815.     {

  816.         return fPluginType;

  817.     }

  818. 

  819.     PluginCategory getCategory() const noexcept override

  820.     {

  821.         return fInfo.category;

  822.     }

  823. 

  824.     int64_t getUniqueId() const noexcept override

  825.     {

  826.         return fInfo.uniqueId;

  827.     }

  828. 

  829.     // -------------------------------------------------------------------

  830.     // Information (count)

  831. 

  832.     uint32_t getMidiInCount() const noexcept override

  833.     {

  834.         return fInfo.mIns;

  835.     }

  836. 

  837.     uint32_t getMidiOutCount() const noexcept override

  838.     {

  839.         return fInfo.mOuts;

  840.     }

  841. 

  842.     // -------------------------------------------------------------------

  843.     // Information (current data)

  844. 

  845.     // TODO - missing getCustomData

  846. 

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

  848.     {

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

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

  851. 

  852.         waitForSaved();

  853. 

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

  855. 

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

  857.         return fInfo.chunk.size();

  858.     }

  859. 

  860.     // -------------------------------------------------------------------

  861.     // Information (per-plugin data)

  862. 

  863.     uint getOptionsAvailable() const noexcept override

  864.     {

  865.         return fInfo.optionsAvailable;

  866.     }

  867. 

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

  869.     {

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

  871. 

  872.         return fParams[parameterId].value;

  873.     }

  874. 

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

  876.     {

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

  878.     }

  879. 

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

  881.     {

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

  883.     }

  884. 

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

  886.     {

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

  888.     }

  889. 

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

  891.     {

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

  893.     }

  894. 

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

  896.     {

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

  898. 

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

  900.     }

  901. 

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

  903.     {

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

  905. 

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

  907.     }

  908. 

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

  910.     {

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

  912. 

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

  914.     }

  915. 

  916.     // -------------------------------------------------------------------

  917.     // Set data (state)

  918. 

  919.     void prepareForSave() noexcept override

  920.     {

  921.         fSaved = false;

  922. 

  923.         {

  924.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  925. 

  926.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPrepareForSave);

  927.             fShmNonRtClientControl.commitWrite();

  928.         }

  929.     }

  930. 

  931.     void waitForSaved()

  932.     {

  933.         if (fSaved)

  934.             return;

  935. 

  936.         const uint32_t timeoutEnd(Time::getMillisecondCounter() + 3000);

  937. 

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

  939. 

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

  941.         {

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

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

  944. 

  945.             if (fSaved)

  946.                 break;

  947. 

  948.             carla_msleep(20);

  949.         }

  950. 

  951.         if (! fSaved)

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

  953.         else

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

  955.     }

  956. 

  957.     // -------------------------------------------------------------------

  958.     // Set data (internal stuff)

  959. 

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

  961.     {

  962.         {

  963.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  964. 

  965.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetOption);

  966.             fShmNonRtClientControl.writeUInt(option);

  967.             fShmNonRtClientControl.writeBool(yesNo);

  968.             fShmNonRtClientControl.commitWrite();

  969.         }

  970. 

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

  972.     }

  973. 

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

  975.     {

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

  977. 

  978.         {

  979.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  980. 

  981.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetCtrlChannel);

  982.             fShmNonRtClientControl.writeShort(channel);

  983.             fShmNonRtClientControl.commitWrite();

  984.         }

  985. 

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

  987.     }

  988. 

  989.     // -------------------------------------------------------------------

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

  991. 

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

  993.     {

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

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

  996. 

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

  998.         fParams[parameterId].value = fixedValue;

  999. 

  1000.         {

  1001.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1002. 

  1003.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterValue);

  1004.             fShmNonRtClientControl.writeUInt(parameterId);

  1005.             fShmNonRtClientControl.writeFloat(value);

  1006.             fShmNonRtClientControl.commitWrite();

  1007.             fShmNonRtClientControl.waitIfDataIsReachingLimit();

  1008.         }

  1009. 

  1010.         CarlaPlugin::setParameterValue(parameterId, fixedValue, sendGui, sendOsc, sendCallback);

  1011.     }

  1012. 

  1013.     void setParameterMidiChannel(const uint32_t parameterId, const uint8_t channel, const bool sendOsc, const bool sendCallback) noexcept override

  1014.     {

  1015.         CARLA_SAFE_ASSERT_RETURN(sendOsc || sendCallback,); // never call this from RT

  1016.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  1017.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1018. 

  1019.         {

  1020.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1021. 

  1022.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterMidiChannel);

  1023.             fShmNonRtClientControl.writeUInt(parameterId);

  1024.             fShmNonRtClientControl.writeByte(channel);

  1025.             fShmNonRtClientControl.commitWrite();

  1026.         }

  1027. 

  1028.         CarlaPlugin::setParameterMidiChannel(parameterId, channel, sendOsc, sendCallback);

  1029.     }

  1030. 

  1031.     void setParameterMidiCC(const uint32_t parameterId, const int16_t cc, const bool sendOsc, const bool sendCallback) noexcept override

  1032.     {

  1033.         CARLA_SAFE_ASSERT_RETURN(sendOsc || sendCallback,); // never call this from RT

  1034.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  1035.         CARLA_SAFE_ASSERT_RETURN(cc >= -1 && cc < MAX_MIDI_CONTROL,);

  1036. 

  1037.         {

  1038.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1039. 

  1040.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetParameterMidiCC);

  1041.             fShmNonRtClientControl.writeUInt(parameterId);

  1042.             fShmNonRtClientControl.writeShort(cc);

  1043.             fShmNonRtClientControl.commitWrite();

  1044.         }

  1045. 

  1046.         CarlaPlugin::setParameterMidiCC(parameterId, cc, sendOsc, sendCallback);

  1047.     }

  1048. 

  1049.     void setProgram(const int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  1050.     {

  1051.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback,); // never call this from RT

  1052.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->prog.count),);

  1053. 

  1054.         {

  1055.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1056. 

  1057.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetProgram);

  1058.             fShmNonRtClientControl.writeInt(index);

  1059.             fShmNonRtClientControl.commitWrite();

  1060.         }

  1061. 

  1062.         CarlaPlugin::setProgram(index, sendGui, sendOsc, sendCallback);

  1063.     }

  1064. 

  1065.     void setMidiProgram(const int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  1066.     {

  1067.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback,); // never call this from RT

  1068.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->midiprog.count),);

  1069. 

  1070.         {

  1071.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1072. 

  1073.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetMidiProgram);

  1074.             fShmNonRtClientControl.writeInt(index);

  1075.             fShmNonRtClientControl.commitWrite();

  1076.         }

  1077. 

  1078.         CarlaPlugin::setMidiProgram(index, sendGui, sendOsc, sendCallback);

  1079.     }

  1080. 

  1081.     void setCustomData(const char* const type, const char* const key, const char* const value, const bool sendGui) override

  1082.     {

  1083.         CARLA_SAFE_ASSERT_RETURN(type != nullptr && type[0] != '\0',);

  1084.         CARLA_SAFE_ASSERT_RETURN(key != nullptr && key[0] != '\0',);

  1085.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

  1086. 

  1087.         const uint32_t typeLen(static_cast<uint32_t>(std::strlen(type)));

  1088.         const uint32_t keyLen(static_cast<uint32_t>(std::strlen(key)));

  1089.         const uint32_t valueLen(static_cast<uint32_t>(std::strlen(value)));

  1090. 

  1091.         {

  1092.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1093. 

  1094.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetCustomData);

  1095. 

  1096.             fShmNonRtClientControl.writeUInt(typeLen);

  1097.             fShmNonRtClientControl.writeCustomData(type, typeLen);

  1098. 

  1099.             fShmNonRtClientControl.writeUInt(keyLen);

  1100.             fShmNonRtClientControl.writeCustomData(key, keyLen);

  1101. 

  1102.             fShmNonRtClientControl.writeUInt(valueLen);

  1103.             fShmNonRtClientControl.writeCustomData(value, valueLen);

  1104. 

  1105.             fShmNonRtClientControl.commitWrite();

  1106.         }

  1107. 

  1108.         CarlaPlugin::setCustomData(type, key, value, sendGui);

  1109.     }

  1110. 

  1111.     void setChunkData(const void* const data, const std::size_t dataSize) override

  1112.     {

  1113.         CARLA_SAFE_ASSERT_RETURN(pData->options & PLUGIN_OPTION_USE_CHUNKS,);

  1114.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  1115.         CARLA_SAFE_ASSERT_RETURN(dataSize > 0,);

  1116. 

  1117.         CarlaString dataBase64(CarlaString::asBase64(data, dataSize));

  1118.         CARLA_SAFE_ASSERT_RETURN(dataBase64.length() > 0,);

  1119. 

  1120.         String filePath(File::getSpecialLocation(File::tempDirectory).getFullPathName());

  1121. 

  1122.         filePath += CARLA_OS_SEP_STR ".CarlaChunk_";

  1123.         filePath += fShmAudioPool.filename.buffer() + 18;

  1124. 

  1125.         if (File(filePath).replaceWithText(dataBase64.buffer()))

  1126.         {

  1127.             const uint32_t ulength(static_cast<uint32_t>(filePath.length()));

  1128. 

  1129.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1130. 

  1131.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetChunkDataFile);

  1132.             fShmNonRtClientControl.writeUInt(ulength);

  1133.             fShmNonRtClientControl.writeCustomData(filePath.toRawUTF8(), ulength);

  1134.             fShmNonRtClientControl.commitWrite();

  1135.         }

  1136. 

  1137.         // save data internally as well

  1138.         fInfo.chunk.resize(dataSize);

  1139.         std::memcpy(fInfo.chunk.data(), data, dataSize);

  1140.     }

  1141. 

  1142.     // -------------------------------------------------------------------

  1143.     // Set ui stuff

  1144. 

  1145.     void showCustomUI(const bool yesNo) override

  1146.     {

  1147.         {

  1148.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1149. 

  1150.             fShmNonRtClientControl.writeOpcode(yesNo ? kPluginBridgeNonRtClientShowUI : kPluginBridgeNonRtClientHideUI);

  1151.             fShmNonRtClientControl.commitWrite();

  1152.         }

  1153. 

  1154.         if (yesNo)

  1155.         {

  1156.             pData->tryTransient();

  1157.         }

  1158.         else

  1159.         {

  1160.             pData->transientTryCounter = 0;

  1161.         }

  1162.     }

  1163. 

  1164.     void idle() override

  1165.     {

  1166.         if (fBridgeThread.isThreadRunning())

  1167.         {

  1168.             if (fInitiated && fTimedOut && pData->active)

  1169.                 setActive(false, true, true);

  1170. 

  1171.             {

  1172.                 const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1173. 

  1174.                 fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientPing);

  1175.                 fShmNonRtClientControl.commitWrite();

  1176.             }

  1177. 

  1178.             try {

  1179.                 handleNonRtData();

  1180.             } CARLA_SAFE_EXCEPTION("handleNonRtData");

  1181.         }

  1182.         else

  1183.             carla_stderr2("TESTING: Bridge has closed!");

  1184. 

  1185.         CarlaPlugin::idle();

  1186.     }

  1187. 

  1188.     // -------------------------------------------------------------------

  1189.     // Plugin state

  1190. 

  1191.     void reload() override

  1192.     {

  1193.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr,);

  1194.         carla_debug("CarlaPluginBridge::reload() - start");

  1195. 

  1196.         const EngineProcessMode processMode(pData->engine->getProccessMode());

  1197. 

  1198.         // Safely disable plugin for reload

  1199.         const ScopedDisabler sd(this);

  1200. 

  1201.         bool needsCtrlIn, needsCtrlOut;

  1202.         needsCtrlIn = needsCtrlOut = false;

  1203. 

  1204.         if (fInfo.aIns > 0)

  1205.         {

  1206.             pData->audioIn.createNew(fInfo.aIns);

  1207.         }

  1208. 

  1209.         if (fInfo.aOuts > 0)

  1210.         {

  1211.             pData->audioOut.createNew(fInfo.aOuts);

  1212.             needsCtrlIn = true;

  1213.         }

  1214. 

  1215.         if (fInfo.cvIns > 0)

  1216.         {

  1217.             pData->cvIn.createNew(fInfo.cvIns);

  1218.         }

  1219. 

  1220.         if (fInfo.cvOuts > 0)

  1221.         {

  1222.             pData->cvOut.createNew(fInfo.cvOuts);

  1223.         }

  1224. 

  1225.         if (fInfo.mIns > 0)

  1226.             needsCtrlIn = true;

  1227. 

  1228.         if (fInfo.mOuts > 0)

  1229.             needsCtrlOut = true;

  1230. 

  1231.         const uint portNameSize(pData->engine->getMaxPortNameSize());

  1232.         CarlaString portName;

  1233. 

  1234.         // Audio Ins

  1235.         for (uint32_t j=0; j < fInfo.aIns; ++j)

  1236.         {

  1237.             portName.clear();

  1238. 

  1239.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1240.             {

  1241.                 portName  = pData->name;

  1242.                 portName += ":";

  1243.             }

  1244. 

  1245.             if (fInfo.aIns > 1)

  1246.             {

  1247.                 portName += "input_";

  1248.                 portName += CarlaString(j+1);

  1249.             }

  1250.             else

  1251.                 portName += "input";

  1252. 

  1253.             portName.truncate(portNameSize);

  1254. 

  1255.             pData->audioIn.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true);

  1256.             pData->audioIn.ports[j].rindex = j;

  1257.         }

  1258. 

  1259.         // Audio Outs

  1260.         for (uint32_t j=0; j < fInfo.aOuts; ++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.aOuts > 1)

  1271.             {

  1272.                 portName += "output_";

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

  1274.             }

  1275.             else

  1276.                 portName += "output";

  1277. 

  1278.             portName.truncate(portNameSize);

  1279. 

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

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

  1282.         }

  1283. 

  1284.         // TODO - CV

  1285. 

  1286.         if (needsCtrlIn)

  1287.         {

  1288.             portName.clear();

  1289. 

  1290.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1291.             {

  1292.                 portName  = pData->name;

  1293.                 portName += ":";

  1294.             }

  1295. 

  1296.             portName += "event-in";

  1297.             portName.truncate(portNameSize);

  1298. 

  1299.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  1300.         }

  1301. 

  1302.         if (needsCtrlOut)

  1303.         {

  1304.             portName.clear();

  1305. 

  1306.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1307.             {

  1308.                 portName  = pData->name;

  1309.                 portName += ":";

  1310.             }

  1311. 

  1312.             portName += "event-out";

  1313.             portName.truncate(portNameSize);

  1314. 

  1315.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  1316.         }

  1317. 

  1318.         // extra plugin hints

  1319.         pData->extraHints = 0x0;

  1320. 

  1321.         if (fInfo.mIns > 0)

  1322.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  1323. 

  1324.         if (fInfo.mOuts > 0)

  1325.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_OUT;

  1326. 

  1327.         if (fInfo.aIns <= 2 && fInfo.aOuts <= 2 && (fInfo.aIns == fInfo.aOuts || fInfo.aIns == 0 || fInfo.aOuts == 0))

  1328.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1329. 

  1330.         bufferSizeChanged(pData->engine->getBufferSize());

  1331.         reloadPrograms(true);

  1332. 

  1333.         carla_debug("CarlaPluginBridge::reload() - end");

  1334.     }

  1335. 

  1336.     // -------------------------------------------------------------------

  1337.     // Plugin processing

  1338. 

  1339.     void activate() noexcept override

  1340.     {

  1341.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  1342. 

  1343.         {

  1344.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1345. 

  1346.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientActivate);

  1347.             fShmNonRtClientControl.commitWrite();

  1348.         }

  1349. 

  1350.         fTimedOut = false;

  1351. 

  1352.         try {

  1353.             waitForClient("activate", 2);

  1354.         } CARLA_SAFE_EXCEPTION("activate - waitForClient");

  1355.     }

  1356. 

  1357.     void deactivate() noexcept override

  1358.     {

  1359.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  1360. 

  1361.         {

  1362.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1363. 

  1364.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientDeactivate);

  1365.             fShmNonRtClientControl.commitWrite();

  1366.         }

  1367. 

  1368.         fTimedOut = false;

  1369. 

  1370.         try {

  1371.             waitForClient("deactivate", 2);

  1372.         } CARLA_SAFE_EXCEPTION("deactivate - waitForClient");

  1373.     }

  1374. 

  1375.     void process(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames) override

  1376.     {

  1377.         // --------------------------------------------------------------------------------------------------------

  1378.         // Check if active

  1379. 

  1380.         if (fTimedOut || fTimedError || ! pData->active)

  1381.         {

  1382.             // disable any output sound

  1383.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1384.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1385.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1386.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1387.             return;

  1388.         }

  1389. 

  1390.         // --------------------------------------------------------------------------------------------------------

  1391.         // Check if needs reset

  1392. 

  1393.         if (pData->needsReset)

  1394.         {

  1395.             // TODO

  1396. 

  1397.             pData->needsReset = false;

  1398.         }

  1399. 

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

  1401.         // Event Input

  1402. 

  1403.         if (pData->event.portIn != nullptr)

  1404.         {

  1405.             // ----------------------------------------------------------------------------------------------------

  1406.             // MIDI Input (External)

  1407. 

  1408.             if (pData->extNotes.mutex.tryLock())

  1409.             {

  1410.                 for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin(); it.valid(); it.next())

  1411.                 {

  1412.                     const ExternalMidiNote& note(it.getValue());

  1413. 

  1414.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1415. 

  1416.                     uint8_t data1, data2, data3;

  1417.                     data1 = uint8_t((note.velo > 0 ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF) | (note.channel & MIDI_CHANNEL_BIT));

  1418.                     data2 = note.note;

  1419.                     data3 = note.velo;

  1420. 

  1421.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1422.                     fShmRtClientControl.writeUInt(0); // time

  1423.                     fShmRtClientControl.writeByte(0); // port

  1424.                     fShmRtClientControl.writeByte(3); // size

  1425.                     fShmRtClientControl.writeByte(data1);

  1426.                     fShmRtClientControl.writeByte(data2);

  1427.                     fShmRtClientControl.writeByte(data3);

  1428.                     fShmRtClientControl.commitWrite();

  1429.                 }

  1430. 

  1431.                 pData->extNotes.data.clear();

  1432.                 pData->extNotes.mutex.unlock();

  1433. 

  1434.             } // End of MIDI Input (External)

  1435. 

  1436.             // ----------------------------------------------------------------------------------------------------

  1437.             // Event Input (System)

  1438. 

  1439.             bool allNotesOffSent = false;

  1440. 

  1441.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1442.             {

  1443.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1444. 

  1445.                 // Control change

  1446.                 switch (event.type)

  1447.                 {

  1448.                 case kEngineEventTypeNull:

  1449.                     break;

  1450. 

  1451.                 case kEngineEventTypeControl: {

  1452.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1453. 

  1454.                     switch (ctrlEvent.type)

  1455.                     {

  1456.                     case kEngineControlEventTypeNull:

  1457.                         break;

  1458. 

  1459.                     case kEngineControlEventTypeParameter:

  1460.                         // Control backend stuff

  1461.                         if (event.channel == pData->ctrlChannel)

  1462.                         {

  1463.                             float value;

  1464. 

  1465.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1466.                             {

  1467.                                 value = ctrlEvent.value;

  1468.                                 setDryWet(value, false, false);

  1469.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1470.                                 break;

  1471.                             }

  1472. 

  1473.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1474.                             {

  1475.                                 value = ctrlEvent.value*127.0f/100.0f;

  1476.                                 setVolume(value, false, false);

  1477.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1478.                                 break;

  1479.                             }

  1480. 

  1481.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1482.                             {

  1483.                                 float left, right;

  1484.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1485. 

  1486.                                 if (value < 0.0f)

  1487.                                 {

  1488.                                     left  = -1.0f;

  1489.                                     right = (value*2.0f)+1.0f;

  1490.                                 }

  1491.                                 else if (value > 0.0f)

  1492.                                 {

  1493.                                     left  = (value*2.0f)-1.0f;

  1494.                                     right = 1.0f;

  1495.                                 }

  1496.                                 else

  1497.                                 {

  1498.                                     left  = -1.0f;

  1499.                                     right = 1.0f;

  1500.                                 }

  1501. 

  1502.                                 setBalanceLeft(left, false, false);

  1503.                                 setBalanceRight(right, false, false);

  1504.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1505.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1506.                                 break;

  1507.                             }

  1508.                         }

  1509. 

  1510.                         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventParameter);

  1511.                         fShmRtClientControl.writeUInt(event.time);

  1512.                         fShmRtClientControl.writeByte(event.channel);

  1513.                         fShmRtClientControl.writeUShort(event.ctrl.param);

  1514.                         fShmRtClientControl.writeFloat(event.ctrl.value);

  1515.                         fShmRtClientControl.commitWrite();

  1516.                         break;

  1517. 

  1518.                     case kEngineControlEventTypeMidiBank:

  1519.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1520.                         {

  1521.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiBank);

  1522.                             fShmRtClientControl.writeUInt(event.time);

  1523.                             fShmRtClientControl.writeByte(event.channel);

  1524.                             fShmRtClientControl.writeUShort(event.ctrl.param);

  1525.                             fShmRtClientControl.commitWrite();

  1526.                         }

  1527.                         break;

  1528. 

  1529.                     case kEngineControlEventTypeMidiProgram:

  1530.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1531.                         {

  1532.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventMidiProgram);

  1533.                             fShmRtClientControl.writeUInt(event.time);

  1534.                             fShmRtClientControl.writeByte(event.channel);

  1535.                             fShmRtClientControl.writeUShort(event.ctrl.param);

  1536.                             fShmRtClientControl.commitWrite();

  1537.                         }

  1538.                         break;

  1539. 

  1540.                     case kEngineControlEventTypeAllSoundOff:

  1541.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1542.                         {

  1543.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllSoundOff);

  1544.                             fShmRtClientControl.writeUInt(event.time);

  1545.                             fShmRtClientControl.writeByte(event.channel);

  1546.                             fShmRtClientControl.commitWrite();

  1547.                         }

  1548.                         break;

  1549. 

  1550.                     case kEngineControlEventTypeAllNotesOff:

  1551.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1552.                         {

  1553.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1554.                             {

  1555.                                 allNotesOffSent = true;

  1556.                                 sendMidiAllNotesOffToCallback();

  1557.                             }

  1558. 

  1559.                             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientControlEventAllNotesOff);

  1560.                             fShmRtClientControl.writeUInt(event.time);

  1561.                             fShmRtClientControl.writeByte(event.channel);

  1562.                             fShmRtClientControl.commitWrite();

  1563.                         }

  1564.                         break;

  1565.                     } // switch (ctrlEvent.type)

  1566.                     break;

  1567.                 } // case kEngineEventTypeControl

  1568. 

  1569.                 case kEngineEventTypeMidi: {

  1570.                     const EngineMidiEvent& midiEvent(event.midi);

  1571. 

  1572.                     if (midiEvent.size == 0 || midiEvent.size >= MAX_MIDI_VALUE)

  1573.                         continue;

  1574. 

  1575.                     const uint8_t* const midiData(midiEvent.size > EngineMidiEvent::kDataSize ? midiEvent.dataExt : midiEvent.data);

  1576. 

  1577.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiData));

  1578. 

  1579.                     if (status == MIDI_STATUS_CHANNEL_PRESSURE && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1580.                         continue;

  1581.                     if (status == MIDI_STATUS_CONTROL_CHANGE && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1582.                         continue;

  1583.                     if (status == MIDI_STATUS_POLYPHONIC_AFTERTOUCH && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1584.                         continue;

  1585.                     if (status == MIDI_STATUS_PITCH_WHEEL_CONTROL && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1586.                         continue;

  1587. 

  1588.                     // Fix bad note-off

  1589.                     if (status == MIDI_STATUS_NOTE_ON && midiData[2] == 0)

  1590.                         status = MIDI_STATUS_NOTE_OFF;

  1591. 

  1592.                     fShmRtClientControl.writeOpcode(kPluginBridgeRtClientMidiEvent);

  1593.                     fShmRtClientControl.writeUInt(event.time);

  1594.                     fShmRtClientControl.writeByte(midiEvent.port);

  1595.                     fShmRtClientControl.writeByte(midiEvent.size);

  1596. 

  1597.                     fShmRtClientControl.writeByte(uint8_t(midiData[0] | (event.channel & MIDI_CHANNEL_BIT)));

  1598. 

  1599.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1600.                         fShmRtClientControl.writeByte(midiData[j]);

  1601. 

  1602.                     fShmRtClientControl.commitWrite();

  1603. 

  1604.                     if (status == MIDI_STATUS_NOTE_ON)

  1605.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, midiData[1], midiData[2]);

  1606.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1607.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, midiData[1], 0.0f);

  1608.                 } break;

  1609.                 }

  1610.             }

  1611. 

  1612.             pData->postRtEvents.trySplice();

  1613. 

  1614.         } // End of Event Input

  1615. 

  1616.         processSingle(audioIn, audioOut, cvIn, cvOut, frames);

  1617.     }

  1618. 

  1619.     bool processSingle(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames)

  1620.     {

  1621.         CARLA_SAFE_ASSERT_RETURN(! fTimedError, false);

  1622.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1623. 

  1624.         if (pData->audioIn.count > 0)

  1625.         {

  1626.             CARLA_SAFE_ASSERT_RETURN(audioIn != nullptr, false);

  1627.         }

  1628.         if (pData->audioOut.count > 0)

  1629.         {

  1630.             CARLA_SAFE_ASSERT_RETURN(audioOut != nullptr, false);

  1631.         }

  1632.         if (pData->cvIn.count > 0)

  1633.         {

  1634.             CARLA_SAFE_ASSERT_RETURN(cvIn != nullptr, false);

  1635.         }

  1636.         if (pData->cvOut.count > 0)

  1637.         {

  1638.             CARLA_SAFE_ASSERT_RETURN(cvOut != nullptr, false);

  1639.         }

  1640. 

  1641.         // --------------------------------------------------------------------------------------------------------

  1642.         // Try lock, silence otherwise

  1643. 

  1644.         if (pData->engine->isOffline())

  1645.         {

  1646.             pData->singleMutex.lock();

  1647.         }

  1648.         else if (! pData->singleMutex.tryLock())

  1649.         {

  1650.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1651.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1652.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1653.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1654.             return false;

  1655.         }

  1656. 

  1657.         // --------------------------------------------------------------------------------------------------------

  1658.         // Reset audio buffers

  1659. 

  1660.         for (uint32_t i=0; i < fInfo.aIns; ++i)

  1661.             FloatVectorOperations::copy(fShmAudioPool.data + (i * frames), audioIn[i], static_cast<int>(frames));

  1662. 

  1663.         // --------------------------------------------------------------------------------------------------------

  1664.         // TimeInfo

  1665. 

  1666.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1667.         BridgeTimeInfo& bridgeTimeInfo(fShmRtClientControl.data->timeInfo);

  1668. 

  1669.         bridgeTimeInfo.playing = timeInfo.playing;

  1670.         bridgeTimeInfo.frame   = timeInfo.frame;

  1671.         bridgeTimeInfo.usecs   = timeInfo.usecs;

  1672.         bridgeTimeInfo.valid   = timeInfo.valid;

  1673. 

  1674.         if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1675.         {

  1676.             bridgeTimeInfo.bar  = timeInfo.bbt.bar;

  1677.             bridgeTimeInfo.beat = timeInfo.bbt.beat;

  1678.             bridgeTimeInfo.tick = timeInfo.bbt.tick;

  1679. 

  1680.             bridgeTimeInfo.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1681.             bridgeTimeInfo.beatType    = timeInfo.bbt.beatType;

  1682. 

  1683.             bridgeTimeInfo.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1684.             bridgeTimeInfo.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1685.             bridgeTimeInfo.barStartTick   = timeInfo.bbt.barStartTick;

  1686.         }

  1687. 

  1688.         // --------------------------------------------------------------------------------------------------------

  1689.         // Run plugin

  1690. 

  1691.         {

  1692.             fShmRtClientControl.writeOpcode(kPluginBridgeRtClientProcess);

  1693.             fShmRtClientControl.commitWrite();

  1694.         }

  1695. 

  1696.         waitForClient("process", 1);

  1697. 

  1698.         if (fTimedOut)

  1699.         {

  1700.             pData->singleMutex.unlock();

  1701.             return false;

  1702.         }

  1703. 

  1704.         for (uint32_t i=0; i < fInfo.aOuts; ++i)

  1705.             FloatVectorOperations::copy(audioOut[i], fShmAudioPool.data + ((i + fInfo.aIns) * frames), static_cast<int>(frames));

  1706. 

  1707.         // --------------------------------------------------------------------------------------------------------

  1708.         // Post-processing (dry/wet, volume and balance)

  1709. 

  1710.         {

  1711.             const bool doVolume  = (pData->hints & PLUGIN_CAN_VOLUME) != 0 && ! carla_compareFloats(pData->postProc.volume, 1.0f);

  1712.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && ! carla_compareFloats(pData->postProc.dryWet, 1.0f);

  1713.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_compareFloats(pData->postProc.balanceLeft, -1.0f) && carla_compareFloats(pData->postProc.balanceRight, 1.0f));

  1714. 

  1715.             bool isPair;

  1716.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1717. 

  1718.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1719.             {

  1720.                 // Dry/Wet

  1721.                 if (doDryWet)

  1722.                 {

  1723.                     for (uint32_t k=0; k < frames; ++k)

  1724.                     {

  1725.                         bufValue        = audioIn[(pData->audioIn.count == 1) ? 0 : i][k];

  1726.                         audioOut[i][k] = (audioOut[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1727.                     }

  1728.                 }

  1729. 

  1730.                 // Balance

  1731.                 if (doBalance)

  1732.                 {

  1733.                     isPair = (i % 2 == 0);

  1734. 

  1735.                     if (isPair)

  1736.                     {

  1737.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1738.                         FloatVectorOperations::copy(oldBufLeft, audioOut[i], static_cast<int>(frames));

  1739.                     }

  1740. 

  1741.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1742.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1743. 

  1744.                     for (uint32_t k=0; k < frames; ++k)

  1745.                     {

  1746.                         if (isPair)

  1747.                         {

  1748.                             // left

  1749.                             audioOut[i][k]  = oldBufLeft[k]     * (1.0f - balRangeL);

  1750.                             audioOut[i][k] += audioOut[i+1][k] * (1.0f - balRangeR);

  1751.                         }

  1752.                         else

  1753.                         {

  1754.                             // right

  1755.                             audioOut[i][k]  = audioOut[i][k] * balRangeR;

  1756.                             audioOut[i][k] += oldBufLeft[k]   * balRangeL;

  1757.                         }

  1758.                     }

  1759.                 }

  1760. 

  1761.                 // Volume (and buffer copy)

  1762.                 if (doVolume)

  1763.                 {

  1764.                     for (uint32_t k=0; k < frames; ++k)

  1765.                         audioOut[i][k] *= pData->postProc.volume;

  1766.                 }

  1767.             }

  1768. 

  1769.         } // End of Post-processing

  1770. 

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

  1772. 

  1773.         pData->singleMutex.unlock();

  1774.         return true;

  1775.     }

  1776. 

  1777.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1778.     {

  1779.         resizeAudioPool(newBufferSize);

  1780. 

  1781.         {

  1782.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1783.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  1784.             fShmNonRtClientControl.writeUInt(newBufferSize);

  1785.             fShmNonRtClientControl.commitWrite();

  1786.         }

  1787. 

  1788.         waitForClient("buffersize", 1);

  1789.     }

  1790. 

  1791.     void sampleRateChanged(const double newSampleRate) override

  1792.     {

  1793.         {

  1794.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1795.             fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  1796.             fShmNonRtClientControl.writeDouble(newSampleRate);

  1797.             fShmNonRtClientControl.commitWrite();

  1798.         }

  1799. 

  1800.         waitForClient("samplerate", 1);

  1801.     }

  1802. 

  1803.     void offlineModeChanged(const bool isOffline) override

  1804.     {

  1805.         {

  1806.             const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1807.             fShmNonRtClientControl.writeOpcode(isOffline ? kPluginBridgeNonRtClientSetOffline : kPluginBridgeNonRtClientSetOnline);

  1808.             fShmNonRtClientControl.commitWrite();

  1809.         }

  1810. 

  1811.         waitForClient("offline", 1);

  1812.     }

  1813. 

  1814.     // -------------------------------------------------------------------

  1815.     // Plugin buffers

  1816. 

  1817.     void clearBuffers() noexcept override

  1818.     {

  1819.         if (fParams != nullptr)

  1820.         {

  1821.             delete[] fParams;

  1822.             fParams = nullptr;

  1823.         }

  1824. 

  1825.         CarlaPlugin::clearBuffers();

  1826.     }

  1827. 

  1828.     // -------------------------------------------------------------------

  1829.     // Post-poned UI Stuff

  1830. 

  1831.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  1832.     {

  1833.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  1834. 

  1835.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1836. 

  1837.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiParameterChange);

  1838.         fShmNonRtClientControl.writeUInt(index);

  1839.         fShmNonRtClientControl.writeFloat(value);

  1840.         fShmNonRtClientControl.commitWrite();

  1841.     }

  1842. 

  1843.     void uiProgramChange(const uint32_t index) noexcept override

  1844.     {

  1845.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1846. 

  1847.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1848. 

  1849.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiProgramChange);

  1850.         fShmNonRtClientControl.writeUInt(index);

  1851.         fShmNonRtClientControl.commitWrite();

  1852.     }

  1853. 

  1854.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1855.     {

  1856.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1857. 

  1858.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1859. 

  1860.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiMidiProgramChange);

  1861.         fShmNonRtClientControl.writeUInt(index);

  1862.         fShmNonRtClientControl.commitWrite();

  1863.     }

  1864. 

  1865.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1866.     {

  1867.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1868.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1869.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  1870. 

  1871.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1872. 

  1873.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOn);

  1874.         fShmNonRtClientControl.writeByte(channel);

  1875.         fShmNonRtClientControl.writeByte(note);

  1876.         fShmNonRtClientControl.writeByte(velo);

  1877.         fShmNonRtClientControl.commitWrite();

  1878.     }

  1879. 

  1880.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  1881.     {

  1882.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1883.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1884. 

  1885.         const CarlaMutexLocker _cml(fShmNonRtClientControl.mutex);

  1886. 

  1887.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientUiNoteOff);

  1888.         fShmNonRtClientControl.writeByte(channel);

  1889.         fShmNonRtClientControl.writeByte(note);

  1890.         fShmNonRtClientControl.commitWrite();

  1891.     }

  1892. 

  1893.     // -------------------------------------------------------------------

  1894. 

  1895.     void handleNonRtData()

  1896.     {

  1897.         for (; fShmNonRtServerControl.isDataAvailableForReading();)

  1898.         {

  1899.             const PluginBridgeNonRtServerOpcode opcode(fShmNonRtServerControl.readOpcode());

  1900. #ifdef DEBUG

  1901.             if (opcode != kPluginBridgeNonRtServerPong) {

  1902.                 carla_debug("CarlaPluginBridge::handleNonRtData() - got opcode: %s", PluginBridgeNonRtServerOpcode2str(opcode));

  1903.             }

  1904. #endif

  1905.             if (opcode != kPluginBridgeNonRtServerNull && fLastPongTime > 0)

  1906.                 fLastPongTime = Time::currentTimeMillis();

  1907. 

  1908.             switch (opcode)

  1909.             {

  1910.             case kPluginBridgeNonRtServerNull:

  1911.             case kPluginBridgeNonRtServerPong:

  1912.                 break;

  1913. 

  1914.             case kPluginBridgeNonRtServerPluginInfo1: {

  1915.                 // uint/category, uint/hints, uint/optionsAvailable, uint/optionsEnabled, long/uniqueId

  1916.                 const uint32_t category = fShmNonRtServerControl.readUInt();

  1917.                 const uint32_t hints    = fShmNonRtServerControl.readUInt();

  1918.                 const uint32_t optionAv = fShmNonRtServerControl.readUInt();

  1919.                 const uint32_t optionEn = fShmNonRtServerControl.readUInt();

  1920.                 const  int64_t uniqueId = fShmNonRtServerControl.readLong();

  1921. 

  1922.                 pData->hints   = hints | PLUGIN_IS_BRIDGE;

  1923.                 pData->options = optionEn;

  1924. 

  1925.                 fInfo.category = static_cast<PluginCategory>(category);

  1926.                 fInfo.uniqueId = uniqueId;

  1927.                 fInfo.optionsAvailable = optionAv;

  1928.             }   break;

  1929. 

  1930.             case kPluginBridgeNonRtServerPluginInfo2: {

  1931.                 // uint/size, str[] (realName), uint/size, str[] (label), uint/size, str[] (maker), uint/size, str[] (copyright)

  1932. 

  1933.                 // realName

  1934.                 const uint32_t realNameSize(fShmNonRtServerControl.readUInt());

  1935.                 char realName[realNameSize+1];

  1936.                 carla_zeroChar(realName, realNameSize+1);

  1937.                 fShmNonRtServerControl.readCustomData(realName, realNameSize);

  1938. 

  1939.                 // label

  1940.                 const uint32_t labelSize(fShmNonRtServerControl.readUInt());

  1941.                 char label[labelSize+1];

  1942.                 carla_zeroChar(label, labelSize+1);

  1943.                 fShmNonRtServerControl.readCustomData(label, labelSize);

  1944. 

  1945.                 // maker

  1946.                 const uint32_t makerSize(fShmNonRtServerControl.readUInt());

  1947.                 char maker[makerSize+1];

  1948.                 carla_zeroChar(maker, makerSize+1);

  1949.                 fShmNonRtServerControl.readCustomData(maker, makerSize);

  1950. 

  1951.                 // copyright

  1952.                 const uint32_t copyrightSize(fShmNonRtServerControl.readUInt());

  1953.                 char copyright[copyrightSize+1];

  1954.                 carla_zeroChar(copyright, copyrightSize+1);

  1955.                 fShmNonRtServerControl.readCustomData(copyright, copyrightSize);

  1956. 

  1957.                 fInfo.name  = realName;

  1958.                 fInfo.label = label;

  1959.                 fInfo.maker = maker;

  1960.                 fInfo.copyright = copyright;

  1961. 

  1962.                 if (pData->name == nullptr)

  1963.                     pData->name = pData->engine->getUniquePluginName(realName);

  1964.             }   break;

  1965. 

  1966.             case kPluginBridgeNonRtServerAudioCount: {

  1967.                 // uint/ins, uint/outs

  1968.                 fInfo.aIns  = fShmNonRtServerControl.readUInt();

  1969.                 fInfo.aOuts = fShmNonRtServerControl.readUInt();

  1970.             }   break;

  1971. 

  1972.             case kPluginBridgeNonRtServerMidiCount: {

  1973.                 // uint/ins, uint/outs

  1974.                 fInfo.mIns  = fShmNonRtServerControl.readUInt();

  1975.                 fInfo.mOuts = fShmNonRtServerControl.readUInt();

  1976.             }   break;

  1977. 

  1978.             case kPluginBridgeNonRtServerParameterCount: {

  1979.                 // uint/count

  1980.                 const uint32_t count = fShmNonRtServerControl.readUInt();

  1981. 

  1982.                 // delete old data

  1983.                 pData->param.clear();

  1984. 

  1985.                 if (fParams != nullptr)

  1986.                 {

  1987.                     delete[] fParams;

  1988.                     fParams = nullptr;

  1989.                 }

  1990. 

  1991.                 if (count > 0)

  1992.                 {

  1993.                     pData->param.createNew(count, false);

  1994.                     fParams = new BridgeParamInfo[count];

  1995. 

  1996.                     // we might not receive all parameter data, so ensure range max is not 0

  1997.                     for (uint32_t i=0; i<count; ++i)

  1998.                     {

  1999.                         pData->param.ranges[i].def = 0.0f;

  2000.                         pData->param.ranges[i].min = 0.0f;

  2001.                         pData->param.ranges[i].max = 1.0f;

  2002.                         pData->param.ranges[i].step = 0.001f;

  2003.                         pData->param.ranges[i].stepSmall = 0.0001f;

  2004.                         pData->param.ranges[i].stepLarge = 0.1f;

  2005.                     }

  2006.                 }

  2007.             }   break;

  2008. 

  2009.             case kPluginBridgeNonRtServerProgramCount: {

  2010.                 // uint/count

  2011.                 pData->prog.clear();

  2012. 

  2013.                 if (const uint32_t count = fShmNonRtServerControl.readUInt())

  2014.                     pData->prog.createNew(static_cast<uint32_t>(count));

  2015. 

  2016.             }   break;

  2017. 

  2018.             case kPluginBridgeNonRtServerMidiProgramCount: {

  2019.                 // uint/count

  2020.                 pData->midiprog.clear();

  2021. 

  2022.                 if (const uint32_t count = fShmNonRtServerControl.readUInt())

  2023.                     pData->midiprog.createNew(static_cast<uint32_t>(count));

  2024. 

  2025.             }   break;

  2026. 

  2027.             case kPluginBridgeNonRtServerParameterData1: {

  2028.                 // uint/index, int/rindex, uint/type, uint/hints, int/cc

  2029.                 const uint32_t index  = fShmNonRtServerControl.readUInt();

  2030.                 const  int32_t rindex = fShmNonRtServerControl.readInt();

  2031.                 const uint32_t type   = fShmNonRtServerControl.readUInt();

  2032.                 const uint32_t hints  = fShmNonRtServerControl.readUInt();

  2033.                 const  int16_t midiCC = fShmNonRtServerControl.readShort();

  2034. 

  2035.                 CARLA_SAFE_ASSERT_BREAK(midiCC >= -1 && midiCC < MAX_MIDI_CONTROL);

  2036.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2037. 

  2038.                 if (index < pData->param.count)

  2039.                 {

  2040.                     pData->param.data[index].type   = static_cast<ParameterType>(type);

  2041.                     pData->param.data[index].index  = static_cast<int32_t>(index);

  2042.                     pData->param.data[index].rindex = rindex;

  2043.                     pData->param.data[index].hints  = hints;

  2044.                     pData->param.data[index].midiCC = midiCC;

  2045.                 }

  2046.             }   break;

  2047. 

  2048.             case kPluginBridgeNonRtServerParameterData2: {

  2049.                 // uint/index, uint/size, str[] (name), uint/size, str[] (unit)

  2050.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2051. 

  2052.                 // name

  2053.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2054.                 char name[nameSize+1];

  2055.                 carla_zeroChar(name, nameSize+1);

  2056.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2057. 

  2058.                 // symbol

  2059.                 const uint32_t symbolSize(fShmNonRtServerControl.readUInt());

  2060.                 char symbol[symbolSize+1];

  2061.                 carla_zeroChar(symbol, symbolSize+1);

  2062.                 fShmNonRtServerControl.readCustomData(symbol, symbolSize);

  2063. 

  2064.                 // unit

  2065.                 const uint32_t unitSize(fShmNonRtServerControl.readUInt());

  2066.                 char unit[unitSize+1];

  2067.                 carla_zeroChar(unit, unitSize+1);

  2068.                 fShmNonRtServerControl.readCustomData(unit, unitSize);

  2069. 

  2070.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2071. 

  2072.                 if (index < pData->param.count)

  2073.                 {

  2074.                     fParams[index].name   = name;

  2075.                     fParams[index].symbol = symbol;

  2076.                     fParams[index].unit   = unit;

  2077.                 }

  2078.             }   break;

  2079. 

  2080.             case kPluginBridgeNonRtServerParameterRanges: {

  2081.                 // uint/index, float/def, float/min, float/max, float/step, float/stepSmall, float/stepLarge

  2082.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2083.                 const float def      = fShmNonRtServerControl.readFloat();

  2084.                 const float min      = fShmNonRtServerControl.readFloat();

  2085.                 const float max      = fShmNonRtServerControl.readFloat();

  2086.                 const float step      = fShmNonRtServerControl.readFloat();

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

  2088.                 const float stepLarge = fShmNonRtServerControl.readFloat();

  2089. 

  2090.                 CARLA_SAFE_ASSERT_BREAK(min < max);

  2091.                 CARLA_SAFE_ASSERT_BREAK(def >= min);

  2092.                 CARLA_SAFE_ASSERT_BREAK(def <= max);

  2093.                 CARLA_SAFE_ASSERT_INT2(index < pData->param.count, index, pData->param.count);

  2094. 

  2095.                 if (index < pData->param.count)

  2096.                 {

  2097.                     pData->param.ranges[index].def = def;

  2098.                     pData->param.ranges[index].min = min;

  2099.                     pData->param.ranges[index].max = max;

  2100.                     pData->param.ranges[index].step      = step;

  2101.                     pData->param.ranges[index].stepSmall = stepSmall;

  2102.                     pData->param.ranges[index].stepLarge = stepLarge;

  2103.                 }

  2104.             }   break;

  2105. 

  2106.             case kPluginBridgeNonRtServerParameterValue: {

  2107.                 // uint/index, float/value

  2108.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2109.                 const float    value = fShmNonRtServerControl.readFloat();

  2110. 

  2111.                 if (index < pData->param.count)

  2112.                 {

  2113.                     const float fixedValue(pData->param.getFixedValue(index, value));

  2114.                     fParams[index].value = fixedValue;

  2115. 

  2116.                     CarlaPlugin::setParameterValue(index, fixedValue, false, true, true);

  2117.                 }

  2118.             }   break;

  2119. 

  2120.             case kPluginBridgeNonRtServerParameterValue2: {

  2121.                 // uint/index, float/value

  2122.                 const uint32_t index = fShmNonRtServerControl.readUInt();

  2123.                 const float    value = fShmNonRtServerControl.readFloat();

  2124. 

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

  2126.                 {

  2127.                     const float fixedValue(pData->param.getFixedValue(index, value));

  2128.                     fParams[index].value = fixedValue;

  2129.                 }

  2130.             }   break;

  2131. 

  2132.             case kPluginBridgeNonRtServerDefaultValue: {

  2133.                 // uint/index, float/value

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

  2135.                 const float    value = fShmNonRtServerControl.readFloat();

  2136. 

  2137.                 if (index < pData->param.count)

  2138.                     pData->param.ranges[index].def = value;

  2139.             }   break;

  2140. 

  2141.             case kPluginBridgeNonRtServerCurrentProgram: {

  2142.                 // int/index

  2143.                 const int32_t index = fShmNonRtServerControl.readInt();

  2144. 

  2145.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

  2146.                 CARLA_SAFE_ASSERT_INT2(index < static_cast<int32_t>(pData->prog.count), index, pData->prog.count);

  2147. 

  2148.                 CarlaPlugin::setProgram(index, false, true, true);

  2149.             }   break;

  2150. 

  2151.             case kPluginBridgeNonRtServerCurrentMidiProgram: {

  2152.                 // int/index

  2153.                 const int32_t index = fShmNonRtServerControl.readInt();

  2154. 

  2155.                 CARLA_SAFE_ASSERT_BREAK(index >= -1);

  2156.                 CARLA_SAFE_ASSERT_INT2(index < static_cast<int32_t>(pData->midiprog.count), index, pData->midiprog.count);

  2157. 

  2158.                 CarlaPlugin::setMidiProgram(index, false, true, true);

  2159.             }   break;

  2160. 

  2161.             case kPluginBridgeNonRtServerProgramName: {

  2162.                 // uint/index, uint/size, str[] (name)

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

  2164. 

  2165.                 // name

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

  2167.                 char name[nameSize+1];

  2168.                 carla_zeroChar(name, nameSize+1);

  2169.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2170. 

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

  2172. 

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

  2174.                 {

  2175.                     if (pData->prog.names[index] != nullptr)

  2176.                         delete[] pData->prog.names[index];

  2177.                     pData->prog.names[index] = carla_strdup(name);

  2178.                 }

  2179.             }   break;

  2180. 

  2181.             case kPluginBridgeNonRtServerMidiProgramData: {

  2182.                 // uint/index, uint/bank, uint/program, uint/size, str[] (name)

  2183.                 const uint32_t index   = fShmNonRtServerControl.readUInt();

  2184.                 const uint32_t bank    = fShmNonRtServerControl.readUInt();

  2185.                 const uint32_t program = fShmNonRtServerControl.readUInt();

  2186. 

  2187.                 // name

  2188.                 const uint32_t nameSize(fShmNonRtServerControl.readUInt());

  2189.                 char name[nameSize+1];

  2190.                 carla_zeroChar(name, nameSize+1);

  2191.                 fShmNonRtServerControl.readCustomData(name, nameSize);

  2192. 

  2193.                 CARLA_SAFE_ASSERT_INT2(index < pData->midiprog.count, index, pData->midiprog.count);

  2194. 

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

  2196.                 {

  2197.                     if (pData->midiprog.data[index].name != nullptr)

  2198.                         delete[] pData->midiprog.data[index].name;

  2199.                     pData->midiprog.data[index].bank    = bank;

  2200.                     pData->midiprog.data[index].program = program;

  2201.                     pData->midiprog.data[index].name    = carla_strdup(name);

  2202.                 }

  2203.             }   break;

  2204. 

  2205.             case kPluginBridgeNonRtServerSetCustomData: {

  2206.                 // uint/size, str[], uint/size, str[], uint/size, str[]

  2207. 

  2208.                 // type

  2209.                 const uint32_t typeSize(fShmNonRtServerControl.readUInt());

  2210.                 char type[typeSize+1];

  2211.                 carla_zeroChar(type, typeSize+1);

  2212.                 fShmNonRtServerControl.readCustomData(type, typeSize);

  2213. 

  2214.                 // key

  2215.                 const uint32_t keySize(fShmNonRtServerControl.readUInt());

  2216.                 char key[keySize+1];

  2217.                 carla_zeroChar(key, keySize+1);

  2218.                 fShmNonRtServerControl.readCustomData(key, keySize);

  2219. 

  2220.                 // value

  2221.                 const uint32_t valueSize(fShmNonRtServerControl.readUInt());

  2222.                 char value[valueSize+1];

  2223.                 carla_zeroChar(value, valueSize+1);

  2224.                 fShmNonRtServerControl.readCustomData(value, valueSize);

  2225. 

  2226.                 CarlaPlugin::setCustomData(type, key, value, false);

  2227.             }   break;

  2228. 

  2229.             case kPluginBridgeNonRtServerSetChunkDataFile: {

  2230.                 // uint/size, str[] (filename)

  2231. 

  2232.                 // chunkFilePath

  2233.                 const uint32_t chunkFilePathSize(fShmNonRtServerControl.readUInt());

  2234.                 char chunkFilePath[chunkFilePathSize+1];

  2235.                 carla_zeroChar(chunkFilePath, chunkFilePathSize+1);

  2236.                 fShmNonRtServerControl.readCustomData(chunkFilePath, chunkFilePathSize);

  2237. 

  2238.                 String realChunkFilePath(chunkFilePath);

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

  2240. 

  2241. #ifndef CARLA_OS_WIN

  2242.                 // Using Wine, fix temp dir

  2243.                 if (fBinaryType == BINARY_WIN32 || fBinaryType == BINARY_WIN64)

  2244.                 {

  2245.                     // Get WINEPREFIX

  2246.                     String wineDir;

  2247.                     if (const char* const WINEPREFIX = getenv("WINEPREFIX"))

  2248.                         wineDir = String(WINEPREFIX);

  2249.                     else

  2250.                         wineDir = File::getSpecialLocation(File::userHomeDirectory).getFullPathName() + "/.wine";

  2251. 

  2252.                     const StringArray driveLetterSplit(StringArray::fromTokens(realChunkFilePath, ":/", ""));

  2253. 

  2254.                     realChunkFilePath  = wineDir;

  2255.                     realChunkFilePath += "/drive_";

  2256.                     realChunkFilePath += driveLetterSplit[0].toLowerCase();

  2257.                     realChunkFilePath += "/";

  2258.                     realChunkFilePath += driveLetterSplit[1];

  2259. 

  2260.                     realChunkFilePath  = realChunkFilePath.replace("\\", "/");

  2261.                     carla_stdout("chunk save path AFTER => %s", realChunkFilePath.toRawUTF8());

  2262.                 }

  2263. #endif

  2264. 

  2265.                 File chunkFile(realChunkFilePath);

  2266. 

  2267.                 if (chunkFile.existsAsFile())

  2268.                 {

  2269.                     fInfo.chunk = carla_getChunkFromBase64String(chunkFile.loadFileAsString().toRawUTF8());

  2270.                     chunkFile.deleteFile();

  2271.                     carla_stderr("chunk data final");

  2272.                 }

  2273.             }   break;

  2274. 

  2275.             case kPluginBridgeNonRtServerSetLatency: {

  2276.                 // uint

  2277.             }   break;

  2278. 

  2279.             case kPluginBridgeNonRtServerReady:

  2280.                 fInitiated = true;

  2281.                 break;

  2282. 

  2283.             case kPluginBridgeNonRtServerSaved:

  2284.                 fSaved = true;

  2285.                 break;

  2286. 

  2287.             case kPluginBridgeNonRtServerUiClosed:

  2288.                 pData->transientTryCounter = 0;

  2289.                 pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2290.                 break;

  2291. 

  2292.             case kPluginBridgeNonRtServerError: {

  2293.                 // error

  2294.                 const uint32_t errorSize(fShmNonRtServerControl.readUInt());

  2295.                 char error[errorSize+1];

  2296.                 carla_zeroChar(error, errorSize+1);

  2297.                 fShmNonRtServerControl.readCustomData(error, errorSize);

  2298. 

  2299.                 if (fInitiated)

  2300.                 {

  2301.                     pData->engine->callback(ENGINE_CALLBACK_ERROR, pData->id, 0, 0, 0.0f, error);

  2302. 

  2303.                     // just in case

  2304.                     pData->engine->setLastError(error);

  2305.                     fInitError = true;

  2306.                 }

  2307.                 else

  2308.                 {

  2309.                     pData->engine->setLastError(error);

  2310.                     fInitError = true;

  2311.                     fInitiated = true;

  2312.                 }

  2313.             }   break;

  2314.             }

  2315.         }

  2316.     }

  2317. 

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

  2319. 

  2320.     uintptr_t getUiBridgeProcessId() const noexcept override

  2321.     {

  2322.         return fBridgeThread.getProcessPID();

  2323.     }

  2324. 

  2325.     const void* getExtraStuff() const noexcept override

  2326.     {

  2327.         return fBridgeBinary.isNotEmpty() ? fBridgeBinary.buffer() : nullptr;

  2328.     }

  2329. 

  2330.     // -------------------------------------------------------------------

  2331. 

  2332.     bool init(const char* const filename, const char* const name, const char* const label, const char* const bridgeBinary)

  2333.     {

  2334.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2335. 

  2336.         // ---------------------------------------------------------------

  2337.         // first checks

  2338. 

  2339.         if (pData->client != nullptr)

  2340.         {

  2341.             pData->engine->setLastError("Plugin client is already registered");

  2342.             return false;

  2343.         }

  2344. 

  2345.         if (bridgeBinary == nullptr || bridgeBinary[0] == '\0')

  2346.         {

  2347.             pData->engine->setLastError("null bridge binary");

  2348.             return false;

  2349.         }

  2350. 

  2351.         // ---------------------------------------------------------------

  2352.         // set info

  2353. 

  2354.         if (name != nullptr && name[0] != '\0')

  2355.             pData->name = pData->engine->getUniquePluginName(name);

  2356. 

  2357.         if (filename != nullptr && filename[0] != '\0')

  2358.             pData->filename = carla_strdup(filename);

  2359.         else

  2360.             pData->filename = carla_strdup("");

  2361. 

  2362.         fBridgeBinary = bridgeBinary;

  2363. 

  2364.         std::srand(static_cast<uint>(std::time(nullptr)));

  2365. 

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

  2367.         // init sem/shm

  2368. 

  2369.         if (! fShmAudioPool.initialize())

  2370.         {

  2371.             carla_stdout("Failed to initialize shared memory audio pool");

  2372.             return false;

  2373.         }

  2374. 

  2375.         if (! fShmRtClientControl.initialize())

  2376.         {

  2377.             carla_stdout("Failed to initialize RT client control");

  2378.             fShmAudioPool.clear();

  2379.             return false;

  2380.         }

  2381. 

  2382.         if (! fShmNonRtClientControl.initialize())

  2383.         {

  2384.             carla_stdout("Failed to initialize Non-RT client control");

  2385.             fShmRtClientControl.clear();

  2386.             fShmAudioPool.clear();

  2387.             return false;

  2388.         }

  2389. 

  2390.         if (! fShmNonRtServerControl.initialize())

  2391.         {

  2392.             carla_stdout("Failed to initialize Non-RT server control");

  2393.             fShmNonRtClientControl.clear();

  2394.             fShmRtClientControl.clear();

  2395.             fShmAudioPool.clear();

  2396.             return false;

  2397.         }

  2398. 

  2399.         // ---------------------------------------------------------------

  2400. 

  2401.         carla_stdout("Carla Server Info:");

  2402.         carla_stdout("  sizeof(BridgeRtClientData):    " P_SIZE, sizeof(BridgeRtClientData));

  2403.         carla_stdout("  sizeof(BridgeNonRtClientData): " P_SIZE, sizeof(BridgeNonRtClientData));

  2404.         carla_stdout("  sizeof(BridgeNonRtServerData): " P_SIZE, sizeof(BridgeNonRtServerData));

  2405. 

  2406.         // initial values

  2407.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientNull);

  2408.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeRtClientData)));

  2409.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeNonRtClientData)));

  2410.         fShmNonRtClientControl.writeUInt(static_cast<uint32_t>(sizeof(BridgeNonRtServerData)));

  2411. 

  2412.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetBufferSize);

  2413.         fShmNonRtClientControl.writeUInt(pData->engine->getBufferSize());

  2414. 

  2415.         fShmNonRtClientControl.writeOpcode(kPluginBridgeNonRtClientSetSampleRate);

  2416.         fShmNonRtClientControl.writeDouble(pData->engine->getSampleRate());

  2417. 

  2418.         fShmNonRtClientControl.commitWrite();

  2419. 

  2420.         // init bridge thread

  2421.         {

  2422.             char shmIdsStr[6*4+1];

  2423.             carla_zeroChar(shmIdsStr, 6*4+1);

  2424. 

  2425.             std::strncpy(shmIdsStr+6*0, &fShmAudioPool.filename[fShmAudioPool.filename.length()-6], 6);

  2426.             std::strncpy(shmIdsStr+6*1, &fShmRtClientControl.filename[fShmRtClientControl.filename.length()-6], 6);

  2427.             std::strncpy(shmIdsStr+6*2, &fShmNonRtClientControl.filename[fShmNonRtClientControl.filename.length()-6], 6);

  2428.             std::strncpy(shmIdsStr+6*3, &fShmNonRtServerControl.filename[fShmNonRtServerControl.filename.length()-6], 6);

  2429. 

  2430.             fBridgeThread.setData(bridgeBinary, label, shmIdsStr);

  2431.             fBridgeThread.startThread();

  2432.         }

  2433. 

  2434.         fInitiated = false;

  2435.         fLastPongTime = Time::currentTimeMillis();

  2436.         CARLA_SAFE_ASSERT(fLastPongTime > 0);

  2437. 

  2438.         static bool sFirstInit = true;

  2439. 

  2440.         int64_t timeoutEnd = 5000;

  2441. 

  2442.         if (sFirstInit)

  2443.             timeoutEnd *= 2;

  2444. #ifndef CARLA_OS_WIN

  2445.          if (fBinaryType == BINARY_WIN32 || fBinaryType == BINARY_WIN64)

  2446.             timeoutEnd *= 2;

  2447. #endif

  2448.         sFirstInit = false;

  2449. 

  2450.         carla_stdout("plugin bridge starting, current time: " P_INT64 "; max wait time: " P_INT64, fLastPongTime, timeoutEnd);

  2451. 

  2452.         for (; Time::currentTimeMillis() < fLastPongTime + timeoutEnd && fBridgeThread.isThreadRunning();)

  2453.         {

  2454.             pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2455.             pData->engine->idle();

  2456.             idle();

  2457. 

  2458.             if (fInitiated)

  2459.                 break;

  2460. 

  2461.             carla_msleep(20);

  2462.             carla_stdout("plugin bridge waiting 20ms, remainig time: " P_INT64, fLastPongTime + timeoutEnd - Time::currentTimeMillis());

  2463.         }

  2464. 

  2465.         fLastPongTime = -1;

  2466. 

  2467.         if (fInitError || ! fInitiated)

  2468.         {

  2469.             fBridgeThread.stopThread(6000);

  2470. 

  2471.             if (! fInitError)

  2472.                 pData->engine->setLastError("Timeout while waiting for a response from plugin-bridge\n(or the plugin crashed on initialization?)");

  2473. 

  2474.             return false;

  2475.         }

  2476. 

  2477.         // ---------------------------------------------------------------

  2478.         // register client

  2479. 

  2480.         if (pData->name == nullptr)

  2481.         {

  2482.             if (label != nullptr && label[0] != '\0')

  2483.                 pData->name = pData->engine->getUniquePluginName(label);

  2484.             else

  2485.                 pData->name = pData->engine->getUniquePluginName("unknown");

  2486.         }

  2487. 

  2488.         pData->client = pData->engine->addClient(this);

  2489. 

  2490.         if (pData->client == nullptr || ! pData->client->isOk())

  2491.         {

  2492.             pData->engine->setLastError("Failed to register plugin client");

  2493.             return false;

  2494.         }

  2495. 

  2496.         return true;

  2497.     }

  2498. 

  2499. private:

  2500.     const BinaryType fBinaryType;

  2501.     const PluginType fPluginType;

  2502. 

  2503.     bool fInitiated;

  2504.     bool fInitError;

  2505.     bool fSaved;

  2506.     bool fTimedOut;

  2507.     bool fTimedError;

  2508. 

  2509.     int64_t fLastPongTime;

  2510. 

  2511.     CarlaString             fBridgeBinary;

  2512.     CarlaPluginBridgeThread fBridgeThread;

  2513. 

  2514.     BridgeAudioPool          fShmAudioPool;

  2515.     BridgeRtClientControl    fShmRtClientControl;

  2516.     BridgeNonRtClientControl fShmNonRtClientControl;

  2517.     BridgeNonRtServerControl fShmNonRtServerControl;

  2518. 

  2519.     struct Info {

  2520.         uint32_t aIns, aOuts;

  2521.         uint32_t cvIns, cvOuts;

  2522.         uint32_t mIns, mOuts;

  2523.         PluginCategory category;

  2524.         uint optionsAvailable;

  2525.         int64_t uniqueId;

  2526.         CarlaString name;

  2527.         CarlaString label;

  2528.         CarlaString maker;

  2529.         CarlaString copyright;

  2530.         std::vector<uint8_t> chunk;

  2531. 

  2532.         Info()

  2533.             : aIns(0),

  2534.               aOuts(0),

  2535.               cvIns(0),

  2536.               cvOuts(0),

  2537.               mIns(0),

  2538.               mOuts(0),

  2539.               category(PLUGIN_CATEGORY_NONE),

  2540.               optionsAvailable(0),

  2541.               uniqueId(0),

  2542.               name(),

  2543.               label(),

  2544.               maker(),

  2545.               copyright(),

  2546.               chunk() {}

  2547.     } fInfo;

  2548. 

  2549.     BridgeParamInfo* fParams;

  2550. 

  2551.     void resizeAudioPool(const uint32_t bufferSize)

  2552.     {

  2553.         fShmAudioPool.resize(bufferSize, fInfo.aIns+fInfo.aOuts, fInfo.cvIns+fInfo.cvOuts);

  2554. 

  2555.         fShmRtClientControl.writeOpcode(kPluginBridgeRtClientSetAudioPool);

  2556.         fShmRtClientControl.writeULong(static_cast<uint64_t>(fShmAudioPool.size));

  2557. 

  2558.         fShmRtClientControl.commitWrite();

  2559. 

  2560.         waitForClient("resize-pool");

  2561.     }

  2562. 

  2563.     void waitForClient(const char* const action, const uint secs = 5)

  2564.     {

  2565.         CARLA_SAFE_ASSERT_RETURN(! fTimedOut,);

  2566.         CARLA_SAFE_ASSERT_RETURN(! fTimedError,);

  2567. 

  2568.         if (fShmRtClientControl.waitForClient(secs, &fTimedOut))

  2569.             return;

  2570. 

  2571.         if (fTimedOut)

  2572.         {

  2573.             carla_stderr("waitForClient(%s) timeout here", action);

  2574.         }

  2575.         else

  2576.         {

  2577.             fTimedError = true;

  2578.             carla_stderr("waitForClient(%s) error while waiting", action);

  2579.         }

  2580.     }

  2581. 

  2582.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginBridge)

  2583. };

  2584. 

  2585. CARLA_BACKEND_END_NAMESPACE

  2586. 

  2587. // -------------------------------------------------------------------------------------------------------------------

  2588. 

  2589. CARLA_BACKEND_START_NAMESPACE

  2590. 

  2591. CarlaPlugin* CarlaPlugin::newBridge(const Initializer& init, BinaryType btype, PluginType ptype, const char* const bridgeBinary)

  2592. {

  2593.     carla_debug("CarlaPlugin::newBridge({%p, \"%s\", \"%s\", \"%s\"}, %s, %s, \"%s\")", init.engine, init.filename, init.name, init.label, BinaryType2Str(btype), PluginType2Str(ptype), bridgeBinary);

  2594. 

  2595.     if (bridgeBinary == nullptr || bridgeBinary[0] == '\0')

  2596.     {

  2597.         init.engine->setLastError("Bridge not possible, bridge-binary not found");

  2598.         return nullptr;

  2599.     }

  2600. 

  2601.     CarlaPluginBridge* const plugin(new CarlaPluginBridge(init.engine, init.id, btype, ptype));

  2602. 

  2603.     if (! plugin->init(init.filename, init.name, init.label, bridgeBinary))

  2604.     {

  2605.         delete plugin;

  2606.         return nullptr;

  2607.     }

  2608. 

  2609.     plugin->reload();

  2610. 

  2611.     bool canRun = true;

  2612. 

  2613.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK)

  2614.     {

  2615.         if (! plugin->canRunInRack())

  2616.         {

  2617.             init.engine->setLastError("Carla's rack mode can only work with Stereo Bridged plugins, sorry!");

  2618.             canRun = false;

  2619.         }

  2620.         else if (plugin->getCVInCount() > 0 || plugin->getCVInCount() > 0)

  2621.         {

  2622.             init.engine->setLastError("Carla's rack mode cannot work with plugins that have CV ports, sorry!");

  2623.             canRun = false;

  2624.         }

  2625.     }

  2626.     else if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_PATCHBAY && (plugin->getCVInCount() > 0 || plugin->getCVInCount() > 0))

  2627.     {

  2628.         init.engine->setLastError("CV ports in patchbay mode is still TODO");

  2629.         canRun = false;

  2630.     }

  2631. 

  2632.     if (! canRun)

  2633.     {

  2634.         delete plugin;

  2635.         return nullptr;

  2636.     }

  2637. 

  2638.     return plugin;

  2639. }

  2640. 

  2641. CARLA_BACKEND_END_NAMESPACE

  2642. 

  2643. // -------------------------------------------------------------------------------------------------------------------