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

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  1. /*

  2.  * Carla Plugin Host

  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. #ifndef BUILD_BRIDGE

  19. # error This file should not be compiled if not building bridge

  20. #endif

  21. 

  22. #include "CarlaEngineInternal.hpp"

  23. #include "CarlaPlugin.hpp"

  24. 

  25. #include "CarlaBackendUtils.hpp"

  26. #include "CarlaBase64Utils.hpp"

  27. #include "CarlaBridgeUtils.hpp"

  28. #include "CarlaMIDI.h"

  29. 

  30. #include "jackbridge/JackBridge.hpp"

  31. 

  32. using juce::File;

  33. using juce::MemoryBlock;

  34. using juce::String;

  35. 

  36. template<typename T>

  37. bool jackbridge_shm_map2(char* shm, T*& value) noexcept

  38. {

  39.     value = (T*)jackbridge_shm_map(shm, sizeof(T));

  40.     return (value != nullptr);

  41. }

  42. 

  43. CARLA_BACKEND_START_NAMESPACE

  44. 

  45. // -------------------------------------------------------------------

  46. 

  47. struct BridgeAudioPool {

  48.     CarlaString filename;

  49.     float* data;

  50.     char shm[64];

  51. 

  52.     BridgeAudioPool() noexcept

  53.         : filename(),

  54.           data(nullptr)

  55.     {

  56.         carla_zeroChar(shm, 64);

  57.         jackbridge_shm_init(shm);

  58.     }

  59. 

  60.     ~BridgeAudioPool() noexcept

  61.     {

  62.         // should be cleared by now

  63.         CARLA_SAFE_ASSERT(data == nullptr);

  64. 

  65.         clear();

  66.     }

  67. 

  68.     void clear() noexcept

  69.     {

  70.         filename.clear();

  71. 

  72.         if (! jackbridge_shm_is_valid(shm))

  73.         {

  74.             CARLA_SAFE_ASSERT(data == nullptr);

  75.             return;

  76.         }

  77. 

  78.         data = nullptr;

  79. 

  80.         jackbridge_shm_close(shm);

  81.         jackbridge_shm_init(shm);

  82.     }

  83. 

  84.     bool attach() noexcept

  85.     {

  86.         // must be invalid right now

  87.         CARLA_SAFE_ASSERT_RETURN(! jackbridge_shm_is_valid(shm), false);

  88. 

  89.         jackbridge_shm_attach(shm, filename);

  90. 

  91.         return jackbridge_shm_is_valid(shm);

  92.     }

  93. 

  94.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeAudioPool)

  95. };

  96. 

  97. // -------------------------------------------------------------------

  98. 

  99. struct BridgeRtClientControl : public CarlaRingBufferControl<SmallStackBuffer> {

  100.     CarlaString filename;

  101.     BridgeRtClientData* data;

  102.     char shm[64];

  103. 

  104.     BridgeRtClientControl() noexcept

  105.         : filename(),

  106.           data(nullptr)

  107.     {

  108.         carla_zeroChar(shm, 64);

  109.         jackbridge_shm_init(shm);

  110.     }

  111. 

  112.     ~BridgeRtClientControl() noexcept override

  113.     {

  114.         // should be cleared by now

  115.         CARLA_SAFE_ASSERT(data == nullptr);

  116. 

  117.         clear();

  118.     }

  119. 

  120.     void clear() noexcept

  121.     {

  122.         filename.clear();

  123. 

  124.         if (data != nullptr)

  125.             unmapData();

  126. 

  127.         if (! jackbridge_shm_is_valid(shm))

  128.             return;

  129. 

  130.         jackbridge_shm_close(shm);

  131.         jackbridge_shm_init(shm);

  132.     }

  133. 

  134.     bool attach() noexcept

  135.     {

  136.         // must be invalid right now

  137.         CARLA_SAFE_ASSERT_RETURN(! jackbridge_shm_is_valid(shm), false);

  138. 

  139.         jackbridge_shm_attach(shm, filename);

  140. 

  141.         return jackbridge_shm_is_valid(shm);

  142.     }

  143. 

  144.     bool mapData() noexcept

  145.     {

  146.         CARLA_SAFE_ASSERT(data == nullptr);

  147. 

  148.         if (jackbridge_shm_map2<BridgeRtClientData>(shm, data))

  149.         {

  150.             CARLA_SAFE_ASSERT(data->midiOut[0] == 0);

  151.             setRingBuffer(&data->ringBuffer, false);

  152.             return true;

  153.         }

  154. 

  155.         return false;

  156.     }

  157. 

  158.     void unmapData() noexcept

  159.     {

  160.         data = nullptr;

  161.         setRingBuffer(nullptr, false);

  162.     }

  163. 

  164.     bool postClient() noexcept

  165.     {

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

  167. 

  168.         return jackbridge_sem_post(&data->sem.client);

  169.     }

  170. 

  171.     bool waitForServer(const uint secs) noexcept

  172.     {

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

  174. 

  175.         return jackbridge_sem_timedwait(&data->sem.server, secs);

  176.     }

  177. 

  178.     PluginBridgeRtClientOpcode readOpcode() noexcept

  179.     {

  180.         return static_cast<PluginBridgeRtClientOpcode>(readUInt());

  181.     }

  182. 

  183.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeRtClientControl)

  184. };

  185. 

  186. // -------------------------------------------------------------------

  187. 

  188. struct BridgeNonRtClientControl : public CarlaRingBufferControl<BigStackBuffer> {

  189.     CarlaString filename;

  190.     BridgeNonRtClientData* data;

  191.     char shm[64];

  192. 

  193.     BridgeNonRtClientControl() noexcept

  194.         : filename(),

  195.           data(nullptr)

  196.     {

  197.         carla_zeroChar(shm, 64);

  198.         jackbridge_shm_init(shm);

  199.     }

  200. 

  201.     ~BridgeNonRtClientControl() noexcept override

  202.     {

  203.         // should be cleared by now

  204.         CARLA_SAFE_ASSERT(data == nullptr);

  205. 

  206.         clear();

  207.     }

  208. 

  209.     void clear() noexcept

  210.     {

  211.         filename.clear();

  212. 

  213.         if (data != nullptr)

  214.             unmapData();

  215. 

  216.         if (! jackbridge_shm_is_valid(shm))

  217.         {

  218.             CARLA_SAFE_ASSERT(data == nullptr);

  219.             return;

  220.         }

  221. 

  222.         jackbridge_shm_close(shm);

  223.         jackbridge_shm_init(shm);

  224.     }

  225. 

  226.     bool attach() noexcept

  227.     {

  228.         // must be invalid right now

  229.         CARLA_SAFE_ASSERT_RETURN(! jackbridge_shm_is_valid(shm), false);

  230. 

  231.         jackbridge_shm_attach(shm, filename);

  232. 

  233.         return jackbridge_shm_is_valid(shm);

  234.     }

  235. 

  236.     bool mapData() noexcept

  237.     {

  238.         CARLA_SAFE_ASSERT(data == nullptr);

  239. 

  240.         if (jackbridge_shm_map2<BridgeNonRtClientData>(shm, data))

  241.         {

  242.             setRingBuffer(&data->ringBuffer, false);

  243.             return true;

  244.         }

  245. 

  246.         return false;

  247.     }

  248. 

  249.     void unmapData() noexcept

  250.     {

  251.         data = nullptr;

  252.         setRingBuffer(nullptr, false);

  253.     }

  254. 

  255.     PluginBridgeNonRtClientOpcode readOpcode() noexcept

  256.     {

  257.         return static_cast<PluginBridgeNonRtClientOpcode>(readUInt());

  258.     }

  259. 

  260.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtClientControl)

  261. };

  262. 

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

  264. 

  265. struct BridgeNonRtServerControl : public CarlaRingBufferControl<HugeStackBuffer> {

  266.     CarlaMutex mutex;

  267.     CarlaString filename;

  268.     BridgeNonRtServerData* data;

  269.     char shm[64];

  270. 

  271.     BridgeNonRtServerControl() noexcept

  272.         :  mutex(),

  273.           filename(),

  274.           data(nullptr)

  275.     {

  276.         carla_zeroChar(shm, 64);

  277.         jackbridge_shm_init(shm);

  278.     }

  279. 

  280.     ~BridgeNonRtServerControl() noexcept override

  281.     {

  282.         // should be cleared by now

  283.         CARLA_SAFE_ASSERT(data == nullptr);

  284. 

  285.         clear();

  286.     }

  287. 

  288.     void clear() noexcept

  289.     {

  290.         filename.clear();

  291. 

  292.         if (data != nullptr)

  293.             unmapData();

  294. 

  295.         if (! jackbridge_shm_is_valid(shm))

  296.         {

  297.             CARLA_SAFE_ASSERT(data == nullptr);

  298.             return;

  299.         }

  300. 

  301.         jackbridge_shm_close(shm);

  302.         jackbridge_shm_init(shm);

  303.     }

  304. 

  305.     bool attach() noexcept

  306.     {

  307.         // must be invalid right now

  308.         CARLA_SAFE_ASSERT_RETURN(! jackbridge_shm_is_valid(shm), false);

  309. 

  310.         jackbridge_shm_attach(shm, filename);

  311. 

  312.         return jackbridge_shm_is_valid(shm);

  313.     }

  314. 

  315.     bool mapData() noexcept

  316.     {

  317.         CARLA_SAFE_ASSERT(data == nullptr);

  318. 

  319.         if (jackbridge_shm_map2<BridgeNonRtServerData>(shm, data))

  320.         {

  321.             setRingBuffer(&data->ringBuffer, false);

  322.             return true;

  323.         }

  324. 

  325.         return false;

  326.     }

  327. 

  328.     void unmapData() noexcept

  329.     {

  330.         data = nullptr;

  331.         setRingBuffer(nullptr, false);

  332.     }

  333. 

  334.     void writeOpcode(const PluginBridgeNonRtServerOpcode opcode) noexcept

  335.     {

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

  337.     }

  338. 

  339.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtServerControl)

  340. };

  341. 

  342. // -------------------------------------------------------------------

  343. 

  344. class CarlaEngineBridge : public CarlaEngine,

  345.                           public CarlaThread

  346. {

  347. public:

  348.     CarlaEngineBridge(const char* const audioPoolBaseName, const char* const rtClientBaseName, const char* const nonRtClientBaseName, const char* const nonRtServerBaseName)

  349.         : CarlaEngine(),

  350.           CarlaThread("CarlaEngineBridge"),

  351.           fShmAudioPool(),

  352.           fShmRtClientControl(),

  353.           fShmNonRtClientControl(),

  354.           fShmNonRtServerControl(),

  355.           fIsRunning(false),

  356.           fIsOffline(false),

  357.           fFirstIdle(true),

  358.           fLastPingCounter(-1),

  359.           leakDetector_CarlaEngineBridge()

  360.     {

  361.         carla_stdout("CarlaEngineBridge::CarlaEngineBridge(\"%s\", \"%s\", \"%s\", \"%s\")", audioPoolBaseName, rtClientBaseName, nonRtClientBaseName, nonRtServerBaseName);

  362. 

  363.         fShmAudioPool.filename  = PLUGIN_BRIDGE_NAMEPREFIX_AUDIO_POOL;

  364.         fShmAudioPool.filename += audioPoolBaseName;

  365. 

  366.         fShmRtClientControl.filename  = PLUGIN_BRIDGE_NAMEPREFIX_RT_CLIENT;

  367.         fShmRtClientControl.filename += rtClientBaseName;

  368. 

  369.         fShmNonRtClientControl.filename  = PLUGIN_BRIDGE_NAMEPREFIX_NON_RT_CLIENT;

  370.         fShmNonRtClientControl.filename += nonRtClientBaseName;

  371. 

  372.         fShmNonRtServerControl.filename  = PLUGIN_BRIDGE_NAMEPREFIX_NON_RT_SERVER;

  373.         fShmNonRtServerControl.filename += nonRtServerBaseName;

  374.     }

  375. 

  376.     ~CarlaEngineBridge() noexcept override

  377.     {

  378.         carla_debug("CarlaEngineBridge::~CarlaEngineBridge()");

  379.     }

  380. 

  381.     // -------------------------------------

  382.     // CarlaEngine virtual calls

  383. 

  384.     bool init(const char* const clientName) override

  385.     {

  386.         carla_debug("CarlaEngineBridge::init(\"%s\")", clientName);

  387. 

  388.         if (! pData->init(clientName))

  389.         {

  390.             setLastError("Failed to init internal data");

  391.             return false;

  392.         }

  393. 

  394.         if (! fShmAudioPool.attach())

  395.         {

  396.             carla_stdout("Failed to attach to audio pool shared memory");

  397.             return false;

  398.         }

  399. 

  400.         if (! fShmRtClientControl.attach())

  401.         {

  402.             clear();

  403.             carla_stdout("Failed to attach to rt client control shared memory");

  404.             return false;

  405.         }

  406. 

  407.         if (! fShmRtClientControl.mapData())

  408.         {

  409.             clear();

  410.             carla_stdout("Failed to map rt client control shared memory");

  411.             return false;

  412.         }

  413. 

  414.         if (! fShmNonRtClientControl.attach())

  415.         {

  416.             clear();

  417.             carla_stdout("Failed to attach to non-rt client control shared memory");

  418.             return false;

  419.         }

  420. 

  421.         if (! fShmNonRtClientControl.mapData())

  422.         {

  423.             clear();

  424.             carla_stdout("Failed to map non-rt control client shared memory");

  425.             return false;

  426.         }

  427. 

  428.         if (! fShmNonRtServerControl.attach())

  429.         {

  430.             clear();

  431.             carla_stdout("Failed to attach to non-rt server control shared memory");

  432.             return false;

  433.         }

  434. 

  435.         if (! fShmNonRtServerControl.mapData())

  436.         {

  437.             clear();

  438.             carla_stdout("Failed to map non-rt control server shared memory");

  439.             return false;

  440.         }

  441. 

  442.         PluginBridgeNonRtClientOpcode opcode;

  443. 

  444.         opcode = fShmNonRtClientControl.readOpcode();

  445.         CARLA_SAFE_ASSERT_INT(opcode == kPluginBridgeNonRtClientNull, opcode);

  446. 

  447.         const uint32_t shmRtClientDataSize = fShmNonRtClientControl.readUInt();

  448.         CARLA_SAFE_ASSERT_INT2(shmRtClientDataSize == sizeof(BridgeRtClientData), shmRtClientDataSize, sizeof(BridgeRtClientData));

  449. 

  450.         const uint32_t shmNonRtClientDataSize = fShmNonRtClientControl.readUInt();

  451.         CARLA_SAFE_ASSERT_INT2(shmNonRtClientDataSize == sizeof(BridgeNonRtClientData), shmNonRtClientDataSize, sizeof(BridgeNonRtClientData));

  452. 

  453.         const uint32_t shmNonRtServerDataSize = fShmNonRtClientControl.readUInt();

  454.         CARLA_SAFE_ASSERT_INT2(shmNonRtServerDataSize == sizeof(BridgeNonRtServerData), shmNonRtServerDataSize, sizeof(BridgeNonRtServerData));

  455. 

  456.         opcode = fShmNonRtClientControl.readOpcode();

  457.         CARLA_SAFE_ASSERT_INT(opcode == kPluginBridgeNonRtClientSetBufferSize, opcode);

  458.         pData->bufferSize = fShmNonRtClientControl.readUInt();

  459. 

  460.         opcode = fShmNonRtClientControl.readOpcode();

  461.         CARLA_SAFE_ASSERT_INT(opcode == kPluginBridgeNonRtClientSetSampleRate, opcode);

  462.         pData->sampleRate = fShmNonRtClientControl.readDouble();

  463. 

  464.         carla_stdout("Carla Client Info:");

  465.         carla_stdout("  BufferSize: %i", pData->bufferSize);

  466.         carla_stdout("  SampleRate: %g", pData->sampleRate);

  467.         carla_stdout("  sizeof(BridgeRtClientData):    %i/" P_SIZE, shmRtClientDataSize,    sizeof(BridgeRtClientData));

  468.         carla_stdout("  sizeof(BridgeNonRtClientData): %i/" P_SIZE, shmNonRtClientDataSize, sizeof(BridgeNonRtClientData));

  469.         carla_stdout("  sizeof(BridgeNonRtServerData): %i/" P_SIZE, shmNonRtServerDataSize, sizeof(BridgeNonRtServerData));

  470. 

  471.         if (shmRtClientDataSize != sizeof(BridgeRtClientData) || shmNonRtClientDataSize != sizeof(BridgeNonRtClientData)  || shmNonRtServerDataSize != sizeof(BridgeNonRtServerData))

  472.             return false;

  473. 

  474.         startThread();

  475. 

  476.         return true;

  477.     }

  478. 

  479.     bool close() override

  480.     {

  481.         carla_debug("CarlaEnginePlugin::close()");

  482.         fLastPingCounter = -1;

  483. 

  484.         CarlaEngine::close();

  485. 

  486.         stopThread(5000);

  487.         clear();

  488. 

  489.         return true;

  490.     }

  491. 

  492.     bool isRunning() const noexcept override

  493.     {

  494.         return isThreadRunning();

  495.     }

  496. 

  497.     bool isOffline() const noexcept override

  498.     {

  499.         return fIsOffline;

  500.     }

  501. 

  502.     EngineType getType() const noexcept override

  503.     {

  504.         return kEngineTypeBridge;

  505.     }

  506. 

  507.     const char* getCurrentDriverName() const noexcept

  508.     {

  509.         return "Bridge";

  510.     }

  511. 

  512.     void idle() noexcept override

  513.     {

  514.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  515.         CARLA_SAFE_ASSERT_RETURN(plugin != nullptr,);

  516. 

  517.         if (fFirstIdle)

  518.         {

  519.             fFirstIdle = false;

  520.             fLastPingCounter = 0;

  521. 

  522.             char bufStr[STR_MAX+1];

  523.             uint32_t bufStrSize;

  524. 

  525.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  526. 

  527.             // kPluginBridgeNonRtServerPluginInfo1

  528.             {

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

  530.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPluginInfo1);

  531.                 fShmNonRtServerControl.writeUInt(plugin->getCategory());

  532.                 fShmNonRtServerControl.writeUInt(plugin->getHints());

  533.                 fShmNonRtServerControl.writeUInt(plugin->getOptionsAvailable());

  534.                 fShmNonRtServerControl.writeUInt(plugin->getOptionsEnabled());

  535.                 fShmNonRtServerControl.writeLong(plugin->getUniqueId());

  536.                 fShmNonRtServerControl.commitWrite();

  537.             }

  538. 

  539.             // kPluginBridgeNonRtServerPluginInfo2

  540.             {

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

  542.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPluginInfo2);

  543. 

  544.                 carla_zeroChar(bufStr, STR_MAX);

  545.                 plugin->getRealName(bufStr);

  546.                 bufStrSize = carla_fixValue(1U, 32U, static_cast<uint32_t>(std::strlen(bufStr)));

  547.                 fShmNonRtServerControl.writeUInt(bufStrSize);

  548.                 fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  549. 

  550.                 carla_zeroChar(bufStr, STR_MAX);

  551.                 plugin->getLabel(bufStr);

  552.                 bufStrSize = carla_fixValue(1U, 32U, static_cast<uint32_t>(std::strlen(bufStr)));

  553.                 fShmNonRtServerControl.writeUInt(bufStrSize);

  554.                 fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  555. 

  556.                 carla_zeroChar(bufStr, STR_MAX);

  557.                 plugin->getMaker(bufStr);

  558.                 bufStrSize = carla_fixValue(1U, 32U, static_cast<uint32_t>(std::strlen(bufStr)));

  559.                 fShmNonRtServerControl.writeUInt(bufStrSize);

  560.                 fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  561. 

  562.                 carla_zeroChar(bufStr, STR_MAX);

  563.                 plugin->getCopyright(bufStr);

  564.                 bufStrSize = carla_fixValue(1U, 32U, static_cast<uint32_t>(std::strlen(bufStr)));

  565.                 fShmNonRtServerControl.writeUInt(bufStrSize);

  566.                 fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  567. 

  568.                 fShmNonRtServerControl.commitWrite();

  569.             }

  570. 

  571.             // kPluginBridgeNonRtServerAudioCount

  572.             {

  573.                 // uint/ins, uint/outs

  574.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerAudioCount);

  575.                 fShmNonRtServerControl.writeUInt(plugin->getAudioInCount());

  576.                 fShmNonRtServerControl.writeUInt(plugin->getAudioOutCount());

  577.                 fShmNonRtServerControl.commitWrite();

  578.             }

  579. 

  580.             // kPluginBridgeNonRtServerMidiCount

  581.             {

  582.                 // uint/ins, uint/outs

  583.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerMidiCount);

  584.                 fShmNonRtServerControl.writeUInt(plugin->getMidiInCount());

  585.                 fShmNonRtServerControl.writeUInt(plugin->getMidiOutCount());

  586.                 fShmNonRtServerControl.commitWrite();

  587.             }

  588. 

  589.             // kPluginBridgeNonRtServerParameter*

  590.             if (const uint32_t count = plugin->getParameterCount())

  591.             {

  592.                 uint32_t paramIns, paramOuts;

  593.                 plugin->getParameterCountInfo(paramIns, paramOuts);

  594. 

  595.                 // uint/ins, uint/outs

  596.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterCount);

  597.                 fShmNonRtServerControl.writeUInt(paramIns);

  598.                 fShmNonRtServerControl.writeUInt(paramOuts);

  599.                 fShmNonRtServerControl.commitWrite();

  600. 

  601.                 for (uint32_t i=0, maxParams=pData->options.maxParameters; i<count && i<maxParams; ++i)

  602.                 {

  603.                     // kPluginBridgeNonRtServerParameterData1

  604.                     {

  605.                         const ParameterData& paramData(plugin->getParameterData(i));

  606. 

  607.                         // uint/index, int/rindex, uint/type, uint/hints, short/cc

  608.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterData1);

  609.                         fShmNonRtServerControl.writeUInt(i);

  610.                         fShmNonRtServerControl.writeInt(paramData.rindex);

  611.                         fShmNonRtServerControl.writeUInt(paramData.type);

  612.                         fShmNonRtServerControl.writeUInt(paramData.hints);

  613.                         fShmNonRtServerControl.writeShort(paramData.midiCC);

  614.                         fShmNonRtServerControl.commitWrite();

  615.                     }

  616. 

  617.                     // kPluginBridgeNonRtServerParameterData2

  618.                     {

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

  620.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterData2);

  621.                         fShmNonRtServerControl.writeUInt(i);

  622. 

  623.                         carla_zeroChar(bufStr, STR_MAX);

  624.                         plugin->getParameterName(i, bufStr);

  625.                         bufStrSize = carla_fixValue(1U, 32U, static_cast<uint32_t>(std::strlen(bufStr)));

  626.                         fShmNonRtServerControl.writeUInt(bufStrSize);

  627.                         fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  628. 

  629.                         carla_zeroChar(bufStr, STR_MAX);

  630.                         plugin->getParameterUnit(i, bufStr);

  631.                         bufStrSize = carla_fixValue(1U, 32U, static_cast<uint32_t>(std::strlen(bufStr)));

  632.                         fShmNonRtServerControl.writeUInt(bufStrSize);

  633.                         fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  634. 

  635.                         fShmNonRtServerControl.commitWrite();

  636.                     }

  637. 

  638.                     // kPluginBridgeNonRtServerParameterRanges

  639.                     {

  640.                         const ParameterRanges& paramRanges(plugin->getParameterRanges(i));

  641. 

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

  643.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterRanges);

  644.                         fShmNonRtServerControl.writeUInt(i);

  645.                         fShmNonRtServerControl.writeFloat(paramRanges.def);

  646.                         fShmNonRtServerControl.writeFloat(paramRanges.min);

  647.                         fShmNonRtServerControl.writeFloat(paramRanges.max);

  648.                         fShmNonRtServerControl.writeFloat(paramRanges.step);

  649.                         fShmNonRtServerControl.writeFloat(paramRanges.stepSmall);

  650.                         fShmNonRtServerControl.writeFloat(paramRanges.stepLarge);

  651.                         fShmNonRtServerControl.commitWrite();

  652.                     }

  653. 

  654.                     // kPluginBridgeNonRtServerParameterValue2

  655.                     {

  656.                         // uint/index float/value (used for init/output parameters only, don't resend values)

  657.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterValue2);

  658.                         fShmNonRtServerControl.writeUInt(i);

  659.                         fShmNonRtServerControl.writeFloat(plugin->getParameterValue(i));

  660.                         fShmNonRtServerControl.commitWrite();

  661.                     }

  662.                 }

  663.             }

  664. 

  665.             // kPluginBridgeNonRtServerProgram*

  666.             if (const uint32_t count = plugin->getProgramCount())

  667.             {

  668.                 // uint/count

  669.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerProgramCount);

  670.                 fShmNonRtServerControl.writeUInt(count);

  671.                 fShmNonRtServerControl.commitWrite();

  672. 

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

  674.                 {

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

  676.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerProgramName);

  677.                     fShmNonRtServerControl.writeUInt(i);

  678. 

  679.                     carla_zeroChar(bufStr, STR_MAX);

  680.                     plugin->getProgramName(i, bufStr);

  681.                     bufStrSize = carla_fixValue(1U, 32U, static_cast<uint32_t>(std::strlen(bufStr)));

  682.                     fShmNonRtServerControl.writeUInt(bufStrSize);

  683.                     fShmNonRtServerControl.writeCustomData(bufStr, bufStrSize);

  684. 

  685.                     fShmNonRtServerControl.commitWrite();

  686.                 }

  687.             }

  688. 

  689.             // kPluginBridgeNonRtServerMidiProgram*

  690.             if (const uint32_t count = plugin->getMidiProgramCount())

  691.             {

  692.                 // uint/count

  693.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerMidiProgramCount);

  694.                 fShmNonRtServerControl.writeUInt(count);

  695.                 fShmNonRtServerControl.commitWrite();

  696. 

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

  698.                 {

  699.                     const MidiProgramData& mpData(plugin->getMidiProgramData(i));

  700.                     CARLA_SAFE_ASSERT_CONTINUE(mpData.name != nullptr);

  701. 

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

  703.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerMidiProgramData);

  704.                     fShmNonRtServerControl.writeUInt(i);

  705.                     fShmNonRtServerControl.writeUInt(mpData.bank);

  706.                     fShmNonRtServerControl.writeUInt(mpData.program);

  707. 

  708.                     bufStrSize = carla_fixValue(1U, 32U, static_cast<uint32_t>(std::strlen(mpData.name)));

  709.                     fShmNonRtServerControl.writeUInt(bufStrSize);

  710.                     fShmNonRtServerControl.writeCustomData(mpData.name, bufStrSize);

  711. 

  712.                     fShmNonRtServerControl.commitWrite();

  713.                 }

  714.             }

  715. 

  716.             // ready!

  717.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerReady);

  718.             fShmNonRtServerControl.commitWrite();

  719. 

  720.             carla_stdout("Carla Client Ready!");

  721.         }

  722. 

  723.         if (const uint32_t count = plugin->getParameterCount())

  724.         {

  725.             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  726. 

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

  728.             {

  729.                 if (! plugin->isParameterOutput(i))

  730.                     continue;

  731. 

  732.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterValue2);

  733.                 fShmNonRtServerControl.writeUInt(i);

  734.                 fShmNonRtServerControl.writeFloat(plugin->getParameterValue(i));

  735. 

  736.                 if (! fShmNonRtServerControl.commitWrite())

  737.                     break;

  738.             }

  739.         }

  740. 

  741.         CarlaEngine::idle();

  742. 

  743.         try {

  744.             handleNonRtData();

  745.         } CARLA_SAFE_EXCEPTION("handleNonRtData");

  746. 

  747.         if (fLastPingCounter >= 0 && ++fLastPingCounter == 500)

  748.         {

  749.             carla_stderr("Did not receive ping message from server for a long time, closing...");

  750.             callback(ENGINE_CALLBACK_QUIT, 0, 0, 0, 0.0f, nullptr);

  751.         }

  752.     }

  753. 

  754.     void callback(const EngineCallbackOpcode action, const uint pluginId, const int value1, const int value2, const float value3, const char* const valueStr) noexcept override

  755.     {

  756.         CarlaEngine::callback(action, pluginId, value1, value2, value3, valueStr);

  757. 

  758.         if (fLastPingCounter < 0)

  759.             return;

  760. 

  761.         switch (action)

  762.         {

  763.         // uint/index float/value

  764.         case ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  765.             CARLA_SAFE_ASSERT_BREAK(value1 >= 0);

  766.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerParameterValue);

  767.             fShmNonRtServerControl.writeUInt(static_cast<uint>(value1));

  768.             fShmNonRtServerControl.writeFloat(value3);

  769.             fShmNonRtServerControl.commitWrite();

  770.             break;

  771. 

  772.         // uint/index float/value

  773.         case ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  774.             CARLA_SAFE_ASSERT_BREAK(value1 >= 0);

  775.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerDefaultValue);

  776.             fShmNonRtServerControl.writeUInt(static_cast<uint>(value1));

  777.             fShmNonRtServerControl.writeFloat(value3);

  778.             fShmNonRtServerControl.commitWrite();

  779.             break;

  780. 

  781.         // int/index

  782.         case ENGINE_CALLBACK_PROGRAM_CHANGED:

  783.             CARLA_SAFE_ASSERT_BREAK(value1 >= -1);

  784.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerCurrentProgram);

  785.             fShmNonRtServerControl.writeInt(value1);

  786.             fShmNonRtServerControl.commitWrite();

  787.             break;

  788. 

  789.         // int/index

  790.         case ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  791.             CARLA_SAFE_ASSERT_BREAK(value1 >= -1);

  792.             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerCurrentMidiProgram);

  793.             fShmNonRtServerControl.writeInt(value1);

  794.             fShmNonRtServerControl.commitWrite();

  795.             break;

  796. 

  797.         case ENGINE_CALLBACK_UI_STATE_CHANGED:

  798.             if (value1 != 1)

  799.             {

  800.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerUiClosed);

  801.                 fShmNonRtServerControl.commitWrite();

  802.             }

  803.             break;

  804. 

  805.         default:

  806.             break;

  807.         }

  808.     }

  809. 

  810.     // -------------------------------------------------------------------

  811. 

  812.     void clear() noexcept

  813.     {

  814.         fShmAudioPool.clear();

  815.         fShmRtClientControl.clear();

  816.         fShmNonRtClientControl.clear();

  817.         fShmNonRtServerControl.clear();

  818.     }

  819. 

  820.     void handleNonRtData()

  821.     {

  822.         for (; fShmNonRtClientControl.isDataAvailableForReading();)

  823.         {

  824.             const PluginBridgeNonRtClientOpcode opcode(fShmNonRtClientControl.readOpcode());

  825.             CarlaPlugin* const plugin(pData->plugins[0].plugin);

  826. 

  827. #ifdef DEBUG

  828.             if (opcode != kPluginBridgeNonRtClientPing) {

  829.                 carla_debug("CarlaEngineBridge::handleNonRtData() - got opcode: %s", PluginBridgeNonRtClientOpcode2str(opcode));

  830.             }

  831. #endif

  832. 

  833.             switch (opcode)

  834.             {

  835.             case kPluginBridgeNonRtClientNull:

  836.                 break;

  837. 

  838.             case kPluginBridgeNonRtClientPing: {

  839.                 if (fLastPingCounter > 0)

  840.                     fLastPingCounter = 0;

  841. 

  842.                 const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  843. 

  844.                 fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerPong);

  845.                 fShmNonRtServerControl.commitWrite();

  846.             }   break;

  847. 

  848.             case kPluginBridgeNonRtClientActivate:

  849.                 if (plugin != nullptr && plugin->isEnabled())

  850.                     plugin->setActive(true, false, false);

  851.                 break;

  852. 

  853.             case kPluginBridgeNonRtClientDeactivate:

  854.                 if (plugin != nullptr && plugin->isEnabled())

  855.                     plugin->setActive(false, false, false);

  856.                 break;

  857. 

  858.             case kPluginBridgeNonRtClientSetBufferSize: {

  859.                 const uint32_t bufferSize(fShmNonRtClientControl.readUInt());

  860.                 pData->bufferSize = bufferSize;

  861.                 bufferSizeChanged(bufferSize);

  862.                 break;

  863.             }

  864. 

  865.             case kPluginBridgeNonRtClientSetSampleRate: {

  866.                 const double sampleRate(fShmNonRtClientControl.readDouble());

  867.                 pData->sampleRate = sampleRate;

  868.                 sampleRateChanged(sampleRate);

  869.                 break;

  870.             }

  871. 

  872.             case kPluginBridgeNonRtClientSetOffline:

  873.                 fIsOffline = true;

  874.                 offlineModeChanged(true);

  875.                 break;

  876. 

  877.             case kPluginBridgeNonRtClientSetOnline:

  878.                 fIsOffline = false;

  879.                 offlineModeChanged(false);

  880.                 break;

  881. 

  882.             case kPluginBridgeNonRtClientSetParameterValue: {

  883.                 const uint32_t index(fShmNonRtClientControl.readUInt());

  884.                 const float    value(fShmNonRtClientControl.readFloat());

  885. 

  886.                 if (plugin != nullptr && plugin->isEnabled())

  887.                     plugin->setParameterValue(index, value, false, false, false);

  888.                 break;

  889.             }

  890. 

  891.             case kPluginBridgeNonRtClientSetParameterMidiChannel: {

  892.                 const uint32_t index(fShmNonRtClientControl.readUInt());

  893.                 const uint8_t  channel(fShmNonRtClientControl.readByte());

  894. 

  895.                 if (plugin != nullptr && plugin->isEnabled())

  896.                     plugin->setParameterMidiChannel(index, channel, false, false);

  897.                 break;

  898.             }

  899. 

  900.             case kPluginBridgeNonRtClientSetParameterMidiCC: {

  901.                 const uint32_t index(fShmNonRtClientControl.readUInt());

  902.                 const int16_t  cc(fShmNonRtClientControl.readShort());

  903. 

  904.                 if (plugin != nullptr && plugin->isEnabled())

  905.                     plugin->setParameterMidiCC(index, cc, false, false);

  906.                 break;

  907.             }

  908. 

  909.             case kPluginBridgeNonRtClientSetProgram: {

  910.                 const int32_t index(fShmNonRtClientControl.readInt());

  911. 

  912.                 if (plugin != nullptr && plugin->isEnabled())

  913.                     plugin->setProgram(index, false, false, false);

  914.                 break;

  915.             }

  916. 

  917.             case kPluginBridgeNonRtClientSetMidiProgram: {

  918.                 const int32_t index(fShmNonRtClientControl.readInt());

  919. 

  920.                 if (plugin != nullptr && plugin->isEnabled())

  921.                     plugin->setMidiProgram(index, false, false, false);

  922.                 break;

  923.             }

  924. 

  925.             case kPluginBridgeNonRtClientSetCustomData: {

  926.                 // type

  927.                 const uint32_t typeSize(fShmNonRtClientControl.readUInt());

  928.                 char typeStr[typeSize+1];

  929.                 carla_zeroChar(typeStr, typeSize+1);

  930.                 fShmNonRtClientControl.readCustomData(typeStr, typeSize);

  931. 

  932.                 // key

  933.                 const uint32_t keySize(fShmNonRtClientControl.readUInt());

  934.                 char keyStr[keySize+1];

  935.                 carla_zeroChar(keyStr, keySize+1);

  936.                 fShmNonRtClientControl.readCustomData(keyStr, keySize);

  937. 

  938.                 // value

  939.                 const uint32_t valueSize(fShmNonRtClientControl.readUInt());

  940.                 char valueStr[valueSize+1];

  941.                 carla_zeroChar(valueStr, valueSize+1);

  942.                 fShmNonRtClientControl.readCustomData(valueStr, valueSize);

  943. 

  944.                 if (plugin != nullptr && plugin->isEnabled())

  945.                     plugin->setCustomData(typeStr, keyStr, valueStr, true);

  946.                 break;

  947.             }

  948. 

  949.             case kPluginBridgeNonRtClientSetChunkDataFile: {

  950.                 const uint32_t size(fShmNonRtClientControl.readUInt());

  951.                 CARLA_SAFE_ASSERT_BREAK(size > 0);

  952. 

  953.                 char chunkFilePathTry[size+1];

  954.                 carla_zeroChar(chunkFilePathTry, size+1);

  955.                 fShmNonRtClientControl.readCustomData(chunkFilePathTry, size);

  956. 

  957.                 CARLA_SAFE_ASSERT_BREAK(chunkFilePathTry[0] != '\0');

  958.                 if (plugin == nullptr || ! plugin->isEnabled()) break;

  959. 

  960.                 String chunkFilePath(chunkFilePathTry);

  961. 

  962. #ifdef CARLA_OS_WIN

  963.                 // check if running under Wine

  964.                 if (chunkFilePath.startsWith("/"))

  965.                     chunkFilePath = chunkFilePath.replaceSection(0, 1, "Z:\\").replace("/", "\\");

  966. #endif

  967. 

  968.                 File chunkFile(chunkFilePath);

  969.                 CARLA_SAFE_ASSERT_BREAK(chunkFile.existsAsFile());

  970. 

  971.                 String chunkDataBase64(chunkFile.loadFileAsString());

  972.                 chunkFile.deleteFile();

  973.                 CARLA_SAFE_ASSERT_BREAK(chunkDataBase64.isNotEmpty());

  974. 

  975.                 std::vector<uint8_t> chunk(carla_getChunkFromBase64String(chunkDataBase64.toRawUTF8()));

  976.                 plugin->setChunkData(chunk.data(), chunk.size());

  977.                 break;

  978.             }

  979. 

  980.             case kPluginBridgeNonRtClientSetCtrlChannel: {

  981.                 const int16_t channel(fShmNonRtClientControl.readShort());

  982.                 CARLA_SAFE_ASSERT_BREAK(channel >= -1 && channel < MAX_MIDI_CHANNELS);

  983. 

  984.                 if (plugin != nullptr && plugin->isEnabled())

  985.                     plugin->setCtrlChannel(static_cast<int8_t>(channel), false, false);

  986.                 break;

  987.             }

  988. 

  989.             case kPluginBridgeNonRtClientSetOption: {

  990.                 const uint32_t option(fShmNonRtClientControl.readUInt());

  991.                 const bool     yesNo(fShmNonRtClientControl.readBool());

  992. 

  993.                 if (plugin != nullptr && plugin->isEnabled())

  994.                     plugin->setOption(option, yesNo, false);

  995.                 break;

  996.             }

  997. 

  998.             case kPluginBridgeNonRtClientPrepareForSave: {

  999.                 if (plugin == nullptr || ! plugin->isEnabled()) break;

  1000. 

  1001.                 plugin->prepareForSave();

  1002. 

  1003.                 for (uint32_t i=0, count=plugin->getCustomDataCount(); i<count; ++i)

  1004.                 {

  1005.                     using namespace juce;

  1006. 

  1007.                     const CustomData& cdata(plugin->getCustomData(i));

  1008. 

  1009.                     const uint32_t typeLen(static_cast<uint32_t>(std::strlen(cdata.type)));

  1010.                     const uint32_t keyLen(static_cast<uint32_t>(std::strlen(cdata.key)));

  1011. 

  1012.                     MemoryOutputStream valueMemStream;

  1013.                     GZIPCompressorOutputStream compressedValueStream(&valueMemStream, 9, false);

  1014.                     compressedValueStream.write(cdata.value, std::strlen(cdata.value));

  1015. 

  1016.                     const CarlaString valueBase64(CarlaString::asBase64(valueMemStream.getData(), valueMemStream.getDataSize()));

  1017.                     const uint32_t valueBase64Len(static_cast<uint32_t>(valueBase64.length()));

  1018.                     CARLA_SAFE_ASSERT_CONTINUE(valueBase64Len > 0);

  1019. 

  1020.                     {

  1021.                         const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1022. 

  1023.                         fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetCustomData);

  1024. 

  1025.                         fShmNonRtServerControl.writeUInt(typeLen);

  1026.                         fShmNonRtServerControl.writeCustomData(cdata.type, typeLen);

  1027. 

  1028.                         fShmNonRtServerControl.writeUInt(keyLen);

  1029.                         fShmNonRtServerControl.writeCustomData(cdata.key, keyLen);

  1030. 

  1031.                         fShmNonRtServerControl.writeUInt(valueBase64Len);

  1032.                         fShmNonRtServerControl.writeCustomData(valueBase64.buffer(), valueBase64Len);

  1033. 

  1034.                         fShmNonRtServerControl.commitWrite();

  1035.                     }

  1036.                 }

  1037. 

  1038.                 if (plugin->getOptionsEnabled() & PLUGIN_OPTION_USE_CHUNKS)

  1039.                 {

  1040.                     void* data = nullptr;

  1041.                     if (const std::size_t dataSize = plugin->getChunkData(&data))

  1042.                     {

  1043.                         CARLA_SAFE_ASSERT_BREAK(data != nullptr);

  1044. 

  1045.                         CarlaString dataBase64 = CarlaString::asBase64(data, dataSize);

  1046.                         CARLA_SAFE_ASSERT_BREAK(dataBase64.length() > 0);

  1047. 

  1048.                         String filePath(File::getSpecialLocation(File::tempDirectory).getFullPathName());

  1049. 

  1050.                         filePath += CARLA_OS_SEP_STR;

  1051.                         filePath += ".CarlaChunk_";

  1052.                         filePath += fShmNonRtClientControl.filename.buffer() + 24;

  1053. 

  1054.                         if (File(filePath).replaceWithText(dataBase64.buffer()))

  1055.                         {

  1056.                             const uint32_t ulength(static_cast<uint32_t>(filePath.length()));

  1057. 

  1058.                             const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1059. 

  1060.                             fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSetChunkDataFile);

  1061.                             fShmNonRtServerControl.writeUInt(ulength);

  1062.                             fShmNonRtServerControl.writeCustomData(filePath.toRawUTF8(), ulength);

  1063.                             fShmNonRtServerControl.commitWrite();

  1064.                         }

  1065.                     }

  1066.                 }

  1067. 

  1068.                 {

  1069.                     const CarlaMutexLocker _cml(fShmNonRtServerControl.mutex);

  1070. 

  1071.                     fShmNonRtServerControl.writeOpcode(kPluginBridgeNonRtServerSaved);

  1072.                     fShmNonRtServerControl.commitWrite();

  1073.                 }

  1074.                 break;

  1075.             }

  1076. 

  1077.             case kPluginBridgeNonRtClientShowUI:

  1078.                 if (plugin != nullptr && plugin->isEnabled())

  1079.                     plugin->showCustomUI(true);

  1080.                 break;

  1081. 

  1082.             case kPluginBridgeNonRtClientHideUI:

  1083.                 if (plugin != nullptr && plugin->isEnabled())

  1084.                     plugin->showCustomUI(false);

  1085.                 break;

  1086. 

  1087.             case kPluginBridgeNonRtClientUiParameterChange: {

  1088.                 const uint32_t index(fShmNonRtClientControl.readUInt());

  1089.                 const float    value(fShmNonRtClientControl.readFloat());

  1090. 

  1091.                 if (plugin != nullptr && plugin->isEnabled())

  1092.                     plugin->uiParameterChange(index, value);

  1093.                 break;

  1094.             }

  1095. 

  1096.             case kPluginBridgeNonRtClientUiProgramChange: {

  1097.                 const uint32_t index(fShmNonRtClientControl.readUInt());

  1098. 

  1099.                 if (plugin != nullptr && plugin->isEnabled())

  1100.                     plugin->uiProgramChange(index);

  1101.                 break;

  1102.             }

  1103. 

  1104.             case kPluginBridgeNonRtClientUiMidiProgramChange: {

  1105.                 const uint32_t index(fShmNonRtClientControl.readUInt());

  1106. 

  1107.                 if (plugin != nullptr && plugin->isEnabled())

  1108.                     plugin->uiMidiProgramChange(index);

  1109.                 break;

  1110.             }

  1111. 

  1112.             case kPluginBridgeNonRtClientUiNoteOn: {

  1113.                 const uint8_t chnl(fShmNonRtClientControl.readByte());

  1114.                 const uint8_t note(fShmNonRtClientControl.readByte());

  1115.                 const uint8_t velo(fShmNonRtClientControl.readByte());

  1116. 

  1117.                 if (plugin != nullptr && plugin->isEnabled())

  1118.                     plugin->uiNoteOn(chnl, note, velo);

  1119.                 break;

  1120.             }

  1121. 

  1122.             case kPluginBridgeNonRtClientUiNoteOff: {

  1123.                 const uint8_t chnl(fShmNonRtClientControl.readByte());

  1124.                 const uint8_t note(fShmNonRtClientControl.readByte());

  1125. 

  1126.                 if (plugin != nullptr && plugin->isEnabled())

  1127.                     plugin->uiNoteOff(chnl, note);

  1128.                 break;

  1129.             }

  1130. 

  1131.             case kPluginBridgeNonRtClientQuit:

  1132.                 signalThreadShouldExit();

  1133.                 callback(ENGINE_CALLBACK_QUIT, 0, 0, 0, 0.0f, nullptr);

  1134.                 break;

  1135.             }

  1136.         }

  1137.     }

  1138. 

  1139.     // -------------------------------------------------------------------

  1140. 

  1141. protected:

  1142.     void run() override

  1143.     {

  1144.         for (; ! shouldThreadExit();)

  1145.         {

  1146.             if (! fShmRtClientControl.waitForServer(5))

  1147.             {

  1148.                 carla_stderr2("Bridge timed-out, final post...");

  1149.                 fShmRtClientControl.postClient();

  1150.                 carla_stderr2("Bridge timed-out, done.");

  1151.                 signalThreadShouldExit();

  1152.                 break;

  1153.             }

  1154. 

  1155.             for (; fShmRtClientControl.isDataAvailableForReading();)

  1156.             {

  1157.                 const PluginBridgeRtClientOpcode opcode(fShmRtClientControl.readOpcode());

  1158.                 CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1159. 

  1160. #ifdef DEBUG

  1161.                 if (opcode != kPluginBridgeRtClientProcess && opcode != kPluginBridgeRtClientMidiEvent) {

  1162.                     carla_debug("CarlaEngineBridgeRtThread::run() - got opcode: %s", PluginBridgeRtClientOpcode2str(opcode));

  1163.                 }

  1164. #endif

  1165. 

  1166.                 switch (opcode)

  1167.                 {

  1168.                 case kPluginBridgeRtClientNull:

  1169.                     break;

  1170. 

  1171.                 case kPluginBridgeRtClientSetAudioPool: {

  1172.                     const uint64_t poolSize(fShmRtClientControl.readULong());

  1173.                     CARLA_SAFE_ASSERT_BREAK(poolSize > 0);

  1174.                     fShmAudioPool.data = (float*)jackbridge_shm_map(fShmAudioPool.shm, static_cast<size_t>(poolSize));

  1175.                     break;

  1176.                 }

  1177. 

  1178.                 case kPluginBridgeRtClientControlEventParameter: {

  1179.                     const uint32_t time(fShmRtClientControl.readUInt());

  1180.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1181.                     const uint16_t param(fShmRtClientControl.readUShort());

  1182.                     const float    value(fShmRtClientControl.readFloat());

  1183. 

  1184.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1185.                     {

  1186.                         event->type    = kEngineEventTypeControl;

  1187.                         event->time    = time;

  1188.                         event->channel = channel;

  1189.                         event->ctrl.type  = kEngineControlEventTypeParameter;

  1190.                         event->ctrl.param = param;

  1191.                         event->ctrl.value = value;

  1192.                     }

  1193.                     break;

  1194.                 }

  1195. 

  1196.                 case kPluginBridgeRtClientControlEventMidiBank: {

  1197.                     const uint32_t time(fShmRtClientControl.readUInt());

  1198.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1199.                     const uint16_t index(fShmRtClientControl.readUShort());

  1200. 

  1201.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1202.                     {

  1203.                         event->type    = kEngineEventTypeControl;

  1204.                         event->time    = time;

  1205.                         event->channel = channel;

  1206.                         event->ctrl.type  = kEngineControlEventTypeMidiBank;

  1207.                         event->ctrl.param = index;

  1208.                         event->ctrl.value = 0.0f;

  1209.                     }

  1210.                     break;

  1211.                 }

  1212. 

  1213.                 case kPluginBridgeRtClientControlEventMidiProgram: {

  1214.                     const uint32_t time(fShmRtClientControl.readUInt());

  1215.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1216.                     const uint16_t index(fShmRtClientControl.readUShort());

  1217. 

  1218.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1219.                     {

  1220.                         event->type    = kEngineEventTypeControl;

  1221.                         event->time    = time;

  1222.                         event->channel = channel;

  1223.                         event->ctrl.type  = kEngineControlEventTypeMidiProgram;

  1224.                         event->ctrl.param = index;

  1225.                         event->ctrl.value = 0.0f;

  1226.                     }

  1227.                     break;

  1228.                 }

  1229. 

  1230.                 case kPluginBridgeRtClientControlEventAllSoundOff: {

  1231.                     const uint32_t time(fShmRtClientControl.readUInt());

  1232.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1233. 

  1234.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1235.                     {

  1236.                         event->type    = kEngineEventTypeControl;

  1237.                         event->time    = time;

  1238.                         event->channel = channel;

  1239.                         event->ctrl.type  = kEngineControlEventTypeAllSoundOff;

  1240.                         event->ctrl.param = 0;

  1241.                         event->ctrl.value = 0.0f;

  1242.                     }

  1243.                 }

  1244. 

  1245.                 case kPluginBridgeRtClientControlEventAllNotesOff: {

  1246.                     const uint32_t time(fShmRtClientControl.readUInt());

  1247.                     const uint8_t  channel(fShmRtClientControl.readByte());

  1248. 

  1249.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1250.                     {

  1251.                         event->type    = kEngineEventTypeControl;

  1252.                         event->time    = time;

  1253.                         event->channel = channel;

  1254.                         event->ctrl.type  = kEngineControlEventTypeAllNotesOff;

  1255.                         event->ctrl.param = 0;

  1256.                         event->ctrl.value = 0.0f;

  1257.                     }

  1258.                 }

  1259. 

  1260.                 case kPluginBridgeRtClientMidiEvent: {

  1261.                     const uint32_t time(fShmRtClientControl.readUInt());

  1262.                     const uint8_t  port(fShmRtClientControl.readByte());

  1263.                     const uint8_t  size(fShmRtClientControl.readByte());

  1264.                     CARLA_SAFE_ASSERT_BREAK(size > 0);

  1265. 

  1266.                     uint8_t data[size];

  1267. 

  1268.                     for (uint8_t i=0; i<size; ++i)

  1269.                         data[i] = fShmRtClientControl.readByte();

  1270. 

  1271.                     if (EngineEvent* const event = getNextFreeInputEvent())

  1272.                     {

  1273.                         event->type    = kEngineEventTypeMidi;

  1274.                         event->time    = time;

  1275.                         event->channel = MIDI_GET_CHANNEL_FROM_DATA(data);

  1276. 

  1277.                         event->midi.port = port;

  1278.                         event->midi.size = size;

  1279. 

  1280.                         if (size > EngineMidiEvent::kDataSize)

  1281.                         {

  1282.                             event->midi.dataExt = data;

  1283.                             std::memset(event->midi.data, 0, sizeof(uint8_t)*EngineMidiEvent::kDataSize);

  1284.                         }

  1285.                         else

  1286.                         {

  1287.                             event->midi.data[0] = MIDI_GET_STATUS_FROM_DATA(data);

  1288. 

  1289.                             uint8_t i=1;

  1290.                             for (; i < size; ++i)

  1291.                                 event->midi.data[i] = data[i];

  1292.                             for (; i < EngineMidiEvent::kDataSize; ++i)

  1293.                                 event->midi.data[i] = 0;

  1294. 

  1295.                             event->midi.dataExt = nullptr;

  1296.                         }

  1297.                     }

  1298.                     break;

  1299.                 }

  1300. 

  1301.                 case kPluginBridgeRtClientProcess: {

  1302.                     CARLA_SAFE_ASSERT_BREAK(fShmAudioPool.data != nullptr);

  1303. 

  1304.                     if (plugin != nullptr && plugin->isEnabled() && plugin->tryLock(false))

  1305.                     {

  1306.                         const BridgeTimeInfo& bridgeTimeInfo(fShmRtClientControl.data->timeInfo);

  1307. 

  1308.                         const uint32_t audioInCount(plugin->getAudioInCount());

  1309.                         const uint32_t audioOutCount(plugin->getAudioOutCount());

  1310.                         const uint32_t cvInCount(plugin->getCVInCount());

  1311.                         const uint32_t cvOutCount(plugin->getCVOutCount());

  1312. 

  1313.                         const float* audioIn[audioInCount];

  1314.                         /* */ float* audioOut[audioOutCount];

  1315.                         const float* cvIn[cvInCount];

  1316.                         /* */ float* cvOut[cvOutCount];

  1317. 

  1318.                         for (uint32_t i=0; i < audioInCount; ++i)

  1319.                             audioIn[i] = fShmAudioPool.data + i*pData->bufferSize;

  1320.                         for (uint32_t i=0; i < audioOutCount; ++i)

  1321.                             audioOut[i] = fShmAudioPool.data + (i+audioInCount)*pData->bufferSize;

  1322. 

  1323.                         for (uint32_t i=0; i < cvInCount; ++i)

  1324.                             cvIn[i] = fShmAudioPool.data + i*pData->bufferSize;

  1325.                         for (uint32_t i=0; i < cvOutCount; ++i)

  1326.                             cvOut[i] = fShmAudioPool.data + (i+cvInCount)*pData->bufferSize;

  1327. 

  1328.                         EngineTimeInfo& timeInfo(pData->timeInfo);

  1329. 

  1330.                         timeInfo.playing = bridgeTimeInfo.playing;

  1331.                         timeInfo.frame   = bridgeTimeInfo.frame;

  1332.                         timeInfo.usecs   = bridgeTimeInfo.usecs;

  1333.                         timeInfo.valid   = bridgeTimeInfo.valid;

  1334. 

  1335.                         if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1336.                         {

  1337.                             timeInfo.bbt.bar  = bridgeTimeInfo.bar;

  1338.                             timeInfo.bbt.beat = bridgeTimeInfo.beat;

  1339.                             timeInfo.bbt.tick = bridgeTimeInfo.tick;

  1340. 

  1341.                             timeInfo.bbt.beatsPerBar = bridgeTimeInfo.beatsPerBar;

  1342.                             timeInfo.bbt.beatType    = bridgeTimeInfo.beatType;

  1343. 

  1344.                             timeInfo.bbt.ticksPerBeat   = bridgeTimeInfo.ticksPerBeat;

  1345.                             timeInfo.bbt.beatsPerMinute = bridgeTimeInfo.beatsPerMinute;

  1346.                             timeInfo.bbt.barStartTick   = bridgeTimeInfo.barStartTick;

  1347.                         }

  1348. 

  1349.                         plugin->initBuffers();

  1350.                         plugin->process(audioIn, audioOut, cvIn, cvOut, pData->bufferSize);

  1351.                         plugin->unlock();

  1352.                     }

  1353. 

  1354.                     // clear buffer

  1355.                     CARLA_SAFE_ASSERT_BREAK(pData->events.in != nullptr);

  1356. 

  1357.                     if (pData->events.in[0].type != kEngineEventTypeNull)

  1358.                         carla_zeroStruct<EngineEvent>(pData->events.in, kMaxEngineEventInternalCount);

  1359. 

  1360.                     break;

  1361.                 }

  1362. 

  1363.                 case kPluginBridgeRtClientQuit:

  1364.                     signalThreadShouldExit();

  1365.                     break;

  1366.                 }

  1367.             }

  1368. 

  1369.             if (! fShmRtClientControl.postClient())

  1370.                 carla_stderr2("Could not post to client rt semaphore");

  1371.         }

  1372. 

  1373.         fIsRunning = false;

  1374.         callback(ENGINE_CALLBACK_ENGINE_STOPPED, 0, 0, 0, 0.0f, nullptr);

  1375.     }

  1376. 

  1377.     // called from process thread above

  1378.     EngineEvent* getNextFreeInputEvent() const noexcept

  1379.     {

  1380.         for (ushort i=0; i < kMaxEngineEventInternalCount; ++i)

  1381.         {

  1382.             EngineEvent& event(pData->events.in[i]);

  1383. 

  1384.             if (event.type == kEngineEventTypeNull)

  1385.                 return &event;

  1386.         }

  1387.         return nullptr;

  1388.     }

  1389. 

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

  1391. 

  1392. private:

  1393.     BridgeAudioPool          fShmAudioPool;

  1394.     BridgeRtClientControl    fShmRtClientControl;

  1395.     BridgeNonRtClientControl fShmNonRtClientControl;

  1396.     BridgeNonRtServerControl fShmNonRtServerControl;

  1397. 

  1398.     bool fIsRunning;

  1399.     bool fIsOffline;

  1400.     bool fFirstIdle;

  1401.     int32_t fLastPingCounter;

  1402. 

  1403.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineBridge)

  1404. };

  1405. 

  1406. // -----------------------------------------------------------------------

  1407. 

  1408. CarlaEngine* CarlaEngine::newBridge(const char* const audioPoolBaseName, const char* const rtClientBaseName, const char* const nonRtClientBaseName, const char* const nonRtServerBaseName)

  1409. {

  1410.     return new CarlaEngineBridge(audioPoolBaseName, rtClientBaseName, nonRtClientBaseName, nonRtServerBaseName);

  1411. }

  1412. 

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

  1414. 

  1415. #ifdef BRIDGE_PLUGIN

  1416. CarlaPlugin* CarlaPlugin::newNative(const CarlaPlugin::Initializer&)              { return nullptr; }

  1417. CarlaPlugin* CarlaPlugin::newFileGIG(const CarlaPlugin::Initializer&, const bool) { return nullptr; }

  1418. CarlaPlugin* CarlaPlugin::newFileSF2(const CarlaPlugin::Initializer&, const bool) { return nullptr; }

  1419. CarlaPlugin* CarlaPlugin::newFileSFZ(const CarlaPlugin::Initializer&)             { return nullptr; }

  1420. #endif

  1421. 

  1422. CARLA_BACKEND_END_NAMESPACE

  1423. 

  1424. // -----------------------------------------------------------------------

  1425. 

  1426. #if defined(CARLA_OS_WIN) && ! defined(__WINE__)

  1427. extern "C" __declspec (dllexport)

  1428. #else

  1429. extern "C" __attribute__ ((visibility("default")))

  1430. #endif

  1431. void carla_register_native_plugin_carla();

  1432. void carla_register_native_plugin_carla(){}

  1433. 

  1434. // -----------------------------------------------------------------------