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Audio plugin host https://kx.studio/carla
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Carla/source/backend/engine/CarlaEngineNative.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. #include "CarlaDefines.h"

  19. 

  20. #ifdef BUILD_BRIDGE

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

  22. #endif

  23. #ifdef CARLA_OS_WIN

  24. # error This file should not be compiled for Windows

  25. #endif

  26. 

  27. #include "CarlaEngineInternal.hpp"

  28. #include "CarlaPlugin.hpp"

  29. 

  30. #include "CarlaBackendUtils.hpp"

  31. #include "CarlaMathUtils.hpp"

  32. #include "CarlaStateUtils.hpp"

  33. 

  34. #include "CarlaExternalUI.hpp"

  35. #include "CarlaNative.hpp"

  36. 

  37. #include <QtCore/QTextStream>

  38. #include <QtXml/QDomNode>

  39. 

  40. CARLA_BACKEND_START_NAMESPACE

  41. 

  42. #if 0

  43. } // Fix editor indentation

  44. #endif

  45. 

  46. // -----------------------------------------------------------------------

  47. 

  48. class CarlaEngineNativeUI : public CarlaExternalUI

  49. {

  50. public:

  51.     CarlaEngineNativeUI(CarlaEngine* const engine)

  52.         : fEngine(engine)

  53.     {

  54.         carla_debug("CarlaEngineNativeUI::CarlaEngineNativeUI(%p)", engine);

  55.     }

  56. 

  57.     ~CarlaEngineNativeUI() override

  58.     {

  59.         carla_debug("CarlaEngineNativeUI::~CarlaEngineNativeUI()");

  60.     }

  61. 

  62.     CarlaMutex& getWriteLock() noexcept

  63.     {

  64.         return fWriteLock;

  65.     }

  66. 

  67. protected:

  68.     bool msgReceived(const char* const msg) noexcept override

  69.     {

  70.         if (CarlaExternalUI::msgReceived(msg))

  71.             return true;

  72. 

  73.         bool ok = true;

  74. 

  75.         if (std::strcmp(msg, "set_engine_option") == 0)

  76.         {

  77.             uint32_t option;

  78.             int32_t value;

  79.             const char* valueStr;

  80. 

  81.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(option), true);

  82.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(value), true);

  83.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(valueStr), true);

  84. 

  85.             try {

  86.                 fEngine->setOption(static_cast<EngineOption>(option), value, valueStr);

  87.             } catch(...) {}

  88. 

  89.             delete[] valueStr;

  90.         }

  91.         else if (std::strcmp(msg, "load_file") == 0)

  92.         {

  93.             const char* filename;

  94. 

  95.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);

  96. 

  97.             try {

  98.                 ok = fEngine->loadFile(filename);

  99.             } catch(...) {}

  100. 

  101.             delete[] filename;

  102.         }

  103.         else if (std::strcmp(msg, "load_project") == 0)

  104.         {

  105.             const char* filename;

  106. 

  107.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);

  108. 

  109.             try {

  110.                 ok = fEngine->loadProject(filename);

  111.             } catch(...) {}

  112. 

  113.             delete[] filename;

  114.         }

  115.         else if (std::strcmp(msg, "save_project") == 0)

  116.         {

  117.             const char* filename;

  118. 

  119.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);

  120. 

  121.             try {

  122.                 ok = fEngine->saveProject(filename);

  123.             } catch(...) {}

  124. 

  125.             delete[] filename;

  126.         }

  127.         else if (std::strcmp(msg, "patchbay_connect") == 0)

  128.         {

  129.             uint32_t groupA, portA, groupB, portB;

  130. 

  131.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(groupA), true);

  132.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(portA), true);

  133.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(groupB), true);

  134.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(portB), true);

  135. 

  136.             try {

  137.                 ok = fEngine->patchbayConnect(groupA, portA, groupB, portB);

  138.             } catch(...) {}

  139.         }

  140.         else if (std::strcmp(msg, "patchbay_disconnect") == 0)

  141.         {

  142.             uint32_t connectionId;

  143. 

  144.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(connectionId), true);

  145. 

  146.             try {

  147.                 ok = fEngine->patchbayDisconnect(connectionId);

  148.             } catch(...) {}

  149.         }

  150.         else if (std::strcmp(msg, "patchbay_refresh") == 0)

  151.         {

  152.             try {

  153.                 ok = fEngine->patchbayRefresh();

  154.             } catch(...) {}

  155.         }

  156.         else if (std::strcmp(msg, "transport_play") == 0)

  157.         {

  158.             fEngine->transportPlay();

  159.         }

  160.         else if (std::strcmp(msg, "transport_pause") == 0)

  161.         {

  162.             fEngine->transportPause();

  163.         }

  164.         else if (std::strcmp(msg, "transport_relocate") == 0)

  165.         {

  166.             uint64_t frame;

  167. 

  168.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsULong(frame), true);

  169. 

  170.             fEngine->transportRelocate(frame);

  171.         }

  172.         else if (std::strcmp(msg, "add_plugin") == 0)

  173.         {

  174.             uint32_t btype, ptype;

  175.             const char* filename = nullptr;

  176.             const char* name;

  177.             const char* label;

  178.             int64_t uniqueId;

  179. 

  180.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(btype), true);

  181.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(ptype), true);

  182.             readNextLineAsString(filename); // can be null

  183.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(name), true);

  184.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(label), true);

  185.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsLong(uniqueId), true);

  186. 

  187.             if (filename != nullptr && std::strcmp(filename, "(null)") == 0)

  188.             {

  189.                 delete[] filename;

  190.                 filename = nullptr;

  191.             }

  192. 

  193.             if (std::strcmp(name, "(null)") == 0)

  194.             {

  195.                 delete[] name;

  196.                 name = nullptr;

  197.             }

  198. 

  199.             ok = fEngine->addPlugin(static_cast<BinaryType>(btype), static_cast<PluginType>(ptype), filename, name, label, uniqueId, nullptr);

  200. 

  201.             if (filename != nullptr)

  202.                 delete[] filename;

  203.             if (name != nullptr)

  204.                 delete[] name;

  205.             delete[] label;

  206.         }

  207.         else if (std::strcmp(msg, "remove_plugin") == 0)

  208.         {

  209.             uint32_t pluginId;

  210. 

  211.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  212. 

  213.             ok = fEngine->removePlugin(pluginId);

  214.         }

  215.         else if (std::strcmp(msg, "remove_all_plugins") == 0)

  216.         {

  217.             ok = fEngine->removeAllPlugins();

  218.         }

  219.         else if (std::strcmp(msg, "rename_plugin") == 0)

  220.         {

  221.             uint32_t pluginId;

  222.             const char* newName;

  223. 

  224.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  225.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(newName), true);

  226. 

  227.             // TODO

  228.             /*const char* name =*/ fEngine->renamePlugin(pluginId, newName);

  229. 

  230.             delete[] newName;

  231.         }

  232.         else if (std::strcmp(msg, "clone_plugin") == 0)

  233.         {

  234.             uint32_t pluginId;

  235. 

  236.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  237. 

  238.             ok = fEngine->clonePlugin(pluginId);

  239.         }

  240.         else if (std::strcmp(msg, "replace_plugin") == 0)

  241.         {

  242.             uint32_t pluginId;

  243. 

  244.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  245. 

  246.             ok = fEngine->replacePlugin(pluginId);

  247.         }

  248.         else if (std::strcmp(msg, "switch_plugins") == 0)

  249.         {

  250.             uint32_t pluginIdA, pluginIdB;

  251. 

  252.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginIdA), true);

  253.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginIdB), true);

  254. 

  255.             ok = fEngine->switchPlugins(pluginIdA, pluginIdB);

  256.         }

  257.         else if (std::strcmp(msg, "load_plugin_state") == 0)

  258.         {

  259.             uint32_t pluginId;

  260.             const char* filename;

  261. 

  262.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  263.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);

  264. 

  265.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  266.                 plugin->loadStateFromFile(filename);

  267. 

  268.             delete[] filename;

  269.         }

  270.         else if (std::strcmp(msg, "save_plugin_state") == 0)

  271.         {

  272.             uint32_t pluginId;

  273.             const char* filename;

  274. 

  275.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  276.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);

  277. 

  278.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  279.                 plugin->saveStateToFile(filename);

  280. 

  281.             delete[] filename;

  282.         }

  283.         else if (std::strcmp(msg, "set_option") == 0)

  284.         {

  285.             uint32_t pluginId, option;

  286.             bool yesNo;

  287. 

  288.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  289.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(option), true);

  290.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(yesNo), true);

  291. 

  292.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  293.                 plugin->setOption(option, yesNo);

  294.         }

  295.         else if (std::strcmp(msg, "set_active") == 0)

  296.         {

  297.             uint32_t pluginId;

  298.             bool onOff;

  299. 

  300.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  301.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(onOff), true);

  302. 

  303.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  304.                 plugin->setActive(onOff, true, false);

  305.         }

  306.         else if (std::strcmp(msg, "set_drywet") == 0)

  307.         {

  308.             uint32_t pluginId;

  309.             float value;

  310. 

  311.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  312.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  313. 

  314.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  315.                 plugin->setDryWet(value, true, false);

  316.         }

  317.         else if (std::strcmp(msg, "set_volume") == 0)

  318.         {

  319.             uint32_t pluginId;

  320.             float value;

  321. 

  322.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  323.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  324. 

  325.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  326.                 plugin->setVolume(value, true, false);

  327.         }

  328.         else if (std::strcmp(msg, "set_balance_left") == 0)

  329.         {

  330.             uint32_t pluginId;

  331.             float value;

  332. 

  333.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  334.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  335. 

  336.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  337.                 plugin->setBalanceLeft(value, true, false);

  338.         }

  339.         else if (std::strcmp(msg, "set_balance_right") == 0)

  340.         {

  341.             uint32_t pluginId;

  342.             float value;

  343. 

  344.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  345.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  346. 

  347.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  348.                 plugin->setBalanceRight(value, true, false);

  349.         }

  350.         else if (std::strcmp(msg, "set_panning") == 0)

  351.         {

  352.             uint32_t pluginId;

  353.             float value;

  354. 

  355.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  356.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  357. 

  358.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  359.                 plugin->setPanning(value, true, false);

  360.         }

  361.         else if (std::strcmp(msg, "set_ctrl_channel") == 0)

  362.         {

  363.             uint32_t pluginId;

  364.             int32_t channel;

  365. 

  366.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  367.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(channel), true);

  368.             CARLA_SAFE_ASSERT_RETURN(channel >= -1 && channel < MAX_MIDI_CHANNELS, true);

  369. 

  370.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  371.                 plugin->setCtrlChannel(int8_t(channel), true, false);

  372.         }

  373.         else if (std::strcmp(msg, "set_parameter_value") == 0)

  374.         {

  375.             uint32_t pluginId, parameterId;

  376.             float value;

  377. 

  378.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  379.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(parameterId), true);

  380.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  381. 

  382.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  383.                 plugin->setParameterValue(parameterId, value, true, true, false);

  384.         }

  385.         else if (std::strcmp(msg, "set_parameter_midi_channel") == 0)

  386.         {

  387.             uint32_t pluginId, parameterId, channel;

  388. 

  389.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  390.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(parameterId), true);

  391.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(channel), true);

  392.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  393. 

  394.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  395.                 plugin->setParameterMidiChannel(parameterId, static_cast<uint8_t>(channel), true, false);

  396.         }

  397.         else if (std::strcmp(msg, "set_parameter_midi_cc") == 0)

  398.         {

  399.             uint32_t pluginId, parameterId;

  400.             int32_t cc;

  401. 

  402.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  403.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(parameterId), true);

  404.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(cc), true);

  405.             CARLA_SAFE_ASSERT_RETURN(cc >= -1 && cc < 0x5F, true);

  406. 

  407.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  408.                 plugin->setParameterMidiCC(parameterId, static_cast<int16_t>(cc), true, false);

  409.         }

  410.         else if (std::strcmp(msg, "set_program") == 0)

  411.         {

  412.             uint32_t pluginId;

  413.             int32_t index;

  414. 

  415.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  416.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(index), true);

  417. 

  418.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  419.                 plugin->setProgram(index, true, true, false);

  420.         }

  421.         else if (std::strcmp(msg, "set_midi_program") == 0)

  422.         {

  423.             uint32_t pluginId;

  424.             int32_t index;

  425. 

  426.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  427.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(index), true);

  428. 

  429.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  430.                 plugin->setMidiProgram(index, true, true, false);

  431.         }

  432.         else if (std::strcmp(msg, "set_custom_data") == 0)

  433.         {

  434.             uint32_t pluginId;

  435.             const char* type;

  436.             const char* key;

  437.             const char* value;

  438. 

  439.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  440.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(type), true);

  441.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(key), true);

  442.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(value), true);

  443. 

  444.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  445.                 plugin->setCustomData(type, key, value, true);

  446. 

  447.             delete[] type;

  448.             delete[] key;

  449.             delete[] value;

  450.         }

  451.         else if (std::strcmp(msg, "set_chunk_data") == 0)

  452.         {

  453.             uint32_t pluginId;

  454.             const char* cdata;

  455. 

  456.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  457.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(cdata), true);

  458. 

  459.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  460.                 plugin->setChunkData(cdata);

  461. 

  462.             delete[] cdata;

  463.         }

  464.         else if (std::strcmp(msg, "prepare_for_save") == 0)

  465.         {

  466.             uint32_t pluginId;

  467. 

  468.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  469. 

  470.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  471.                 plugin->prepareForSave();

  472.         }

  473.         else if (std::strcmp(msg, "reset_parameters") == 0)

  474.         {

  475.             uint32_t pluginId;

  476. 

  477.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  478. 

  479.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  480.                 plugin->resetParameters();

  481.         }

  482.         else if (std::strcmp(msg, "randomize_parameters") == 0)

  483.         {

  484.             uint32_t pluginId;

  485. 

  486.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  487. 

  488.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  489.                 plugin->randomizeParameters();

  490.         }

  491.         else if (std::strcmp(msg, "send_midi_note") == 0)

  492.         {

  493.             uint32_t pluginId, channel, note, velocity;

  494. 

  495.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  496.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(channel), true);

  497.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(note), true);

  498.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(velocity), true);

  499.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  500.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_VALUE, true);

  501.             CARLA_SAFE_ASSERT_RETURN(velocity < MAX_MIDI_VALUE, true);

  502. 

  503.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  504.                 plugin->sendMidiSingleNote(static_cast<uint8_t>(channel), static_cast<uint8_t>(note), static_cast<uint8_t>(velocity), true, true, false);

  505.         }

  506.         else if (std::strcmp(msg, "show_custom_ui") == 0)

  507.         {

  508.             uint32_t pluginId;

  509.             bool yesNo;

  510. 

  511.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  512.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(yesNo), true);

  513. 

  514.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  515.                 plugin->showCustomUI(yesNo);

  516.         }

  517.         else

  518.         {

  519.             carla_stderr("msgReceived : %s", msg);

  520.             return false;

  521.         }

  522. 

  523.         if (! ok)

  524.         {

  525.             const CarlaMutexLocker cml(fWriteLock);

  526.             writeMsg("error\n", 6);

  527.             writeAndFixMsg(fEngine->getLastError());

  528.         }

  529. 

  530.         return true;

  531.     }

  532. 

  533. private:

  534.     CarlaEngine* const fEngine;

  535. 

  536.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  537. };

  538. 

  539. // -----------------------------------------------------------------------

  540. 

  541. class CarlaEngineNative : public CarlaEngine

  542. {

  543. public:

  544.     CarlaEngineNative(const NativeHostDescriptor* const host, const bool isPatchbay)

  545.         : CarlaEngine(),

  546.           pHost(host),

  547.           fIsPatchbay(isPatchbay),

  548.           fIsActive(false),

  549.           fIsRunning(false),

  550.           fUiServer(this)

  551.     {

  552.         carla_debug("CarlaEngineNative::CarlaEngineNative()");

  553. 

  554.         carla_zeroChar(fTmpBuf, STR_MAX+1);

  555. 

  556.         // set-up engine

  557.         if (fIsPatchbay)

  558.         {

  559.             pData->options.processMode         = ENGINE_PROCESS_MODE_PATCHBAY;

  560.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  561.             pData->options.forceStereo         = false;

  562.             pData->options.preferPluginBridges = false;

  563.             pData->options.preferUiBridges     = false;

  564.             init("Carla-Patchbay");

  565.         }

  566.         else

  567.         {

  568.             pData->options.processMode         = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;

  569.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  570.             pData->options.forceStereo         = true;

  571.             pData->options.preferPluginBridges = false;

  572.             pData->options.preferUiBridges     = false;

  573.             init("Carla-Rack");

  574.         }

  575. 

  576.         if (pData->options.resourceDir != nullptr)

  577.             delete[] pData->options.resourceDir;

  578.         if (pData->options.binaryDir != nullptr)

  579.             delete[] pData->options.binaryDir;

  580. 

  581.         pData->options.resourceDir = carla_strdup(pHost->resourceDir);

  582.         pData->options.binaryDir = carla_strdup(pHost->resourceDir);

  583. 

  584.         setCallback(_ui_server_callback, this);

  585.     }

  586. 

  587.     ~CarlaEngineNative() override

  588.     {

  589.         CARLA_SAFE_ASSERT(! fIsActive);

  590.         carla_debug("CarlaEngineNative::~CarlaEngineNative() - START");

  591. 

  592.         pData->aboutToClose = true;

  593.         fIsRunning = false;

  594. 

  595.         removeAllPlugins();

  596.         runPendingRtEvents();

  597.         close();

  598. 

  599.         carla_debug("CarlaEngineNative::~CarlaEngineNative() - END");

  600.     }

  601. 

  602. protected:

  603.     // -------------------------------------

  604.     // CarlaEngine virtual calls

  605. 

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

  607.     {

  608.         carla_debug("CarlaEngineNative::init(\"%s\")", clientName);

  609. 

  610.         pData->bufferSize = pHost->get_buffer_size(pHost->handle);

  611.         pData->sampleRate = pHost->get_sample_rate(pHost->handle);

  612. 

  613.         fIsRunning = true;

  614.         CarlaEngine::init(clientName);

  615.         return true;

  616.     }

  617. 

  618.     bool isRunning() const noexcept override

  619.     {

  620.         return fIsRunning;

  621.     }

  622. 

  623.     bool isOffline() const noexcept override

  624.     {

  625.         return pHost->is_offline(pHost->handle);

  626.     }

  627. 

  628.     EngineType getType() const noexcept override

  629.     {

  630.         return kEngineTypePlugin;

  631.     }

  632. 

  633.     const char* getCurrentDriverName() const noexcept override

  634.     {

  635.         return "Plugin";

  636.     }

  637. 

  638.     // -------------------------------------------------------------------

  639. 

  640.     const char* renamePlugin(const uint id, const char* const newName) override

  641.     {

  642.         if (const char* const retName = CarlaEngine::renamePlugin(id, newName))

  643.         {

  644.             uiServerCallback(ENGINE_CALLBACK_PLUGIN_RENAMED, id, 0, 0, 0.0f, retName);

  645.             return retName;

  646.         }

  647. 

  648.         return nullptr;

  649.     }

  650. 

  651.     // -------------------------------------------------------------------

  652. 

  653.     void bufferSizeChanged(const uint32_t newBufferSize)

  654.     {

  655.         pData->bufferSize = newBufferSize;

  656.         CarlaEngine::bufferSizeChanged(newBufferSize);

  657.     }

  658. 

  659.     void sampleRateChanged(const double newSampleRate)

  660.     {

  661.         pData->sampleRate = newSampleRate;

  662.         CarlaEngine::sampleRateChanged(newSampleRate);

  663.     }

  664. 

  665.     // -------------------------------------------------------------------

  666. 

  667.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  668.     {

  669.         const CarlaMutexLocker cml(fUiServer.getWriteLock());

  670. 

  671.         const uint pluginId(plugin->getId());

  672. 

  673.         std::sprintf(fTmpBuf, "PLUGIN_INFO_%i\n", pluginId);

  674.         fUiServer.writeMsg(fTmpBuf);

  675. 

  676.         std::sprintf(fTmpBuf, "%i:%i:%i:" P_INT64 ":%i:%i\n", plugin->getType(), plugin->getCategory(), plugin->getHints(), plugin->getUniqueId(), plugin->getOptionsAvailable(), plugin->getOptionsEnabled());

  677.         fUiServer.writeMsg(fTmpBuf);

  678. 

  679.         if (const char* const filename = plugin->getFilename())

  680.         {

  681.             std::sprintf(fTmpBuf, "%s", filename);

  682.             fUiServer.writeAndFixMsg(fTmpBuf);

  683.         }

  684.         else

  685.             fUiServer.writeMsg("\n");

  686. 

  687.         if (const char* const name = plugin->getName())

  688.         {

  689.             std::sprintf(fTmpBuf, "%s", name);

  690.             fUiServer.writeAndFixMsg(fTmpBuf);

  691.         }

  692.         else

  693.             fUiServer.writeMsg("\n");

  694. 

  695.         if (const char* const iconName = plugin->getIconName())

  696.         {

  697.             std::sprintf(fTmpBuf, "%s", iconName);

  698.             fUiServer.writeAndFixMsg(fTmpBuf);

  699.         }

  700.         else

  701.             fUiServer.writeMsg("\n");

  702. 

  703.         plugin->getRealName(fTmpBuf);

  704.         fUiServer.writeAndFixMsg(fTmpBuf);

  705. 

  706.         plugin->getLabel(fTmpBuf);

  707.         fUiServer.writeAndFixMsg(fTmpBuf);

  708. 

  709.         plugin->getMaker(fTmpBuf);

  710.         fUiServer.writeAndFixMsg(fTmpBuf);

  711. 

  712.         plugin->getCopyright(fTmpBuf);

  713.         fUiServer.writeAndFixMsg(fTmpBuf);

  714. 

  715.         std::sprintf(fTmpBuf, "AUDIO_COUNT_%i:%i:%i\n", pluginId, plugin->getAudioInCount(), plugin->getAudioOutCount());

  716.         fUiServer.writeMsg(fTmpBuf);

  717. 

  718.         std::sprintf(fTmpBuf, "MIDI_COUNT_%i:%i:%i\n", pluginId, plugin->getMidiInCount(), plugin->getMidiOutCount());

  719.         fUiServer.writeMsg(fTmpBuf);

  720.     }

  721. 

  722.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  723.     {

  724.         const CarlaMutexLocker cml(fUiServer.getWriteLock());

  725. 

  726.         const uint pluginId(plugin->getId());

  727. 

  728.         uint32_t ins, outs, count;

  729.         plugin->getParameterCountInfo(ins, outs);

  730.         count = plugin->getParameterCount();

  731.         std::sprintf(fTmpBuf, "PARAMETER_COUNT_%i:%i:%i:%i\n", pluginId, ins, outs, count);

  732.         fUiServer.writeMsg(fTmpBuf);

  733. 

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

  735.         {

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

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

  738. 

  739.             std::sprintf(fTmpBuf, "PARAMETER_DATA_%i:%i\n", pluginId, i);

  740.             fUiServer.writeMsg(fTmpBuf);

  741.             std::sprintf(fTmpBuf, "%i:%i:%i:%i\n", paramData.type, paramData.hints, paramData.midiChannel, paramData.midiCC);

  742.             fUiServer.writeMsg(fTmpBuf);

  743.             plugin->getParameterName(i, fTmpBuf);

  744.             fUiServer.writeAndFixMsg(fTmpBuf);

  745.             plugin->getParameterUnit(i, fTmpBuf);

  746.             fUiServer.writeAndFixMsg(fTmpBuf);

  747. 

  748.             std::sprintf(fTmpBuf, "PARAMETER_RANGES_%i:%i\n", pluginId, i);

  749.             fUiServer.writeMsg(fTmpBuf);

  750.             std::sprintf(fTmpBuf, "%f:%f:%f:%f:%f:%f\n", paramRanges.def, paramRanges.min, paramRanges.max, paramRanges.step, paramRanges.stepSmall, paramRanges.stepLarge);

  751.             fUiServer.writeMsg(fTmpBuf);

  752. 

  753.             std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", pluginId, i);

  754.             fUiServer.writeMsg(fTmpBuf);

  755.             std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(i));

  756.             fUiServer.writeMsg(fTmpBuf);

  757.         }

  758.     }

  759. 

  760.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  761.     {

  762.         const CarlaMutexLocker cml(fUiServer.getWriteLock());

  763. 

  764.         const uint pluginId(plugin->getId());

  765. 

  766.         uint32_t count = plugin->getProgramCount();

  767.         std::sprintf(fTmpBuf, "PROGRAM_COUNT_%i:%i:%i\n", pluginId, count, plugin->getCurrentProgram());

  768.         fUiServer.writeMsg(fTmpBuf);

  769. 

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

  771.         {

  772.             std::sprintf(fTmpBuf, "PROGRAM_NAME_%i:%i\n", pluginId, i);

  773.             fUiServer.writeMsg(fTmpBuf);

  774.             plugin->getProgramName(i, fTmpBuf);

  775.             fUiServer.writeAndFixMsg(fTmpBuf);

  776.         }

  777. 

  778.         count = plugin->getMidiProgramCount();

  779.         std::sprintf(fTmpBuf, "MIDI_PROGRAM_COUNT_%i:%i:%i\n", pluginId, count, plugin->getCurrentMidiProgram());

  780.         fUiServer.writeMsg(fTmpBuf);

  781. 

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

  783.         {

  784.             std::sprintf(fTmpBuf, "MIDI_PROGRAM_DATA_%i:%i\n", pluginId, i);

  785.             fUiServer.writeMsg(fTmpBuf);

  786. 

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

  788.             std::sprintf(fTmpBuf, "%i:%i\n", mpData.bank, mpData.program);

  789.             fUiServer.writeMsg(fTmpBuf);

  790.             std::sprintf(fTmpBuf, "%s", mpData.name);

  791.             fUiServer.writeAndFixMsg(fTmpBuf);

  792.         }

  793.     }

  794. 

  795.     void uiServerCallback(const EngineCallbackOpcode action, const uint pluginId, const int value1, const int value2, const float value3, const char* const valueStr)

  796.     {

  797.         if (! fIsRunning)

  798.             return;

  799.         if (! fUiServer.isOk())

  800.             return;

  801. 

  802.         CarlaPlugin* plugin;

  803. 

  804.         switch (action)

  805.         {

  806.         case ENGINE_CALLBACK_RELOAD_INFO:

  807.             plugin = getPlugin(pluginId);

  808. 

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

  810.             {

  811.                 CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);

  812.                 uiServerSendPluginInfo(plugin);

  813.             }

  814.             break;

  815. 

  816.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  817.             plugin = getPlugin(pluginId);

  818. 

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

  820.             {

  821.                 CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);

  822.                 uiServerSendPluginParameters(plugin);

  823.             }

  824.             break;

  825. 

  826.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  827.             plugin = getPlugin(pluginId);

  828. 

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

  830.             {

  831.                 CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);

  832.                 uiServerSendPluginPrograms(plugin);

  833.             }

  834.             break;

  835. 

  836.         case ENGINE_CALLBACK_RELOAD_ALL:

  837.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  838.             plugin = getPlugin(pluginId);

  839. 

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

  841.             {

  842.                 CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);

  843.                 uiServerSendPluginInfo(plugin);

  844.                 uiServerSendPluginParameters(plugin);

  845.                 uiServerSendPluginPrograms(plugin);

  846.             }

  847.             break;

  848. 

  849.         default:

  850.             break;

  851.         }

  852. 

  853.         const CarlaMutexLocker cml(fUiServer.getWriteLock());

  854. 

  855.         std::sprintf(fTmpBuf, "ENGINE_CALLBACK_%i\n", int(action));

  856.         fUiServer.writeMsg(fTmpBuf);

  857. 

  858.         std::sprintf(fTmpBuf, "%u\n", pluginId);

  859.         fUiServer.writeMsg(fTmpBuf);

  860. 

  861.         std::sprintf(fTmpBuf, "%i\n", value1);

  862.         fUiServer.writeMsg(fTmpBuf);

  863. 

  864.         std::sprintf(fTmpBuf, "%i\n", value2);

  865.         fUiServer.writeMsg(fTmpBuf);

  866. 

  867.         std::sprintf(fTmpBuf, "%f\n", value3);

  868.         fUiServer.writeMsg(fTmpBuf);

  869. 

  870.         fUiServer.writeAndFixMsg(valueStr);

  871.     }

  872. 

  873.     // -------------------------------------------------------------------

  874.     // Plugin parameter calls

  875. 

  876.     uint32_t getParameterCount() const

  877.     {

  878.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  879.             return plugin->getParameterCount();

  880. 

  881.         return 0;

  882.     }

  883. 

  884.     const NativeParameter* getParameterInfo(const uint32_t index) const

  885.     {

  886.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  887.         {

  888.             if (index < plugin->getParameterCount())

  889.             {

  890.                 static NativeParameter param;

  891.                 static char strBufName[STR_MAX+1];

  892.                 static char strBufUnit[STR_MAX+1];

  893. 

  894.                 const ParameterData& paramData(plugin->getParameterData(index));

  895.                 const ParameterRanges& paramRanges(plugin->getParameterRanges(index));

  896. 

  897.                 plugin->getParameterName(index, strBufName);

  898.                 plugin->getParameterUnit(index, strBufUnit);

  899. 

  900.                 uint hints = 0x0;

  901. 

  902.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  903.                     hints |= ::PARAMETER_IS_BOOLEAN;

  904.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  905.                     hints |= ::PARAMETER_IS_INTEGER;

  906.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  907.                     hints |= ::PARAMETER_IS_LOGARITHMIC;

  908.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  909.                     hints |= ::PARAMETER_IS_AUTOMABLE;

  910.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  911.                     hints |= ::PARAMETER_USES_SAMPLE_RATE;

  912.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  913.                     hints |= ::PARAMETER_USES_SCALEPOINTS;

  914.                 if (paramData.hints & PARAMETER_USES_CUSTOM_TEXT)

  915.                     hints |= ::PARAMETER_USES_CUSTOM_TEXT;

  916. 

  917.                 if (paramData.type == PARAMETER_INPUT || paramData.type == PARAMETER_OUTPUT)

  918.                 {

  919.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  920.                         hints |= ::PARAMETER_IS_ENABLED;

  921.                     if (paramData.type == PARAMETER_OUTPUT)

  922.                         hints |= ::PARAMETER_IS_OUTPUT;

  923.                 }

  924. 

  925.                 param.hints = static_cast<NativeParameterHints>(hints);

  926.                 param.name  = strBufName;

  927.                 param.unit  = strBufUnit;

  928.                 param.ranges.def = paramRanges.def;

  929.                 param.ranges.min = paramRanges.min;

  930.                 param.ranges.max = paramRanges.max;

  931.                 param.ranges.step = paramRanges.step;

  932.                 param.ranges.stepSmall = paramRanges.stepSmall;

  933.                 param.ranges.stepLarge = paramRanges.stepLarge;

  934.                 param.scalePointCount = 0; // TODO

  935.                 param.scalePoints = nullptr;

  936. 

  937.                 return &param;

  938.             }

  939.         }

  940. 

  941.         return nullptr;

  942.     }

  943. 

  944.     float getParameterValue(const uint32_t index) const

  945.     {

  946.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  947.         {

  948.             if (index < plugin->getParameterCount())

  949.                 return plugin->getParameterValue(index);

  950.         }

  951. 

  952.         return 0.0f;

  953.     }

  954. 

  955.     const char* getParameterText(const uint32_t index /*, const float value*/) const

  956.     {

  957.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  958.         {

  959.             if (index < plugin->getParameterCount())

  960.             {

  961.                 static char strBuf[STR_MAX+1];

  962.                 carla_zeroChar(strBuf, STR_MAX+1);

  963. 

  964.                 plugin->getParameterText(index, /*value,*/ strBuf);

  965. 

  966.                 return strBuf;

  967.             }

  968.         }

  969. 

  970.         return nullptr;

  971.     }

  972. 

  973.     // -------------------------------------------------------------------

  974.     // Plugin midi-program calls

  975. 

  976.     uint32_t getMidiProgramCount() const

  977.     {

  978.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  979.             return plugin->getMidiProgramCount();

  980. 

  981.         return 0;

  982.     }

  983. 

  984.     const NativeMidiProgram* getMidiProgramInfo(const uint32_t index) const

  985.     {

  986.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  987.         {

  988.             if (index < plugin->getMidiProgramCount())

  989.             {

  990.                 static NativeMidiProgram midiProg;

  991. 

  992.                 {

  993.                     const MidiProgramData& midiProgData(plugin->getMidiProgramData(index));

  994. 

  995.                     midiProg.bank    = midiProgData.bank;

  996.                     midiProg.program = midiProgData.program;

  997.                     midiProg.name    = midiProgData.name;

  998.                 }

  999. 

  1000.                 return &midiProg;

  1001.             }

  1002.         }

  1003. 

  1004.         return nullptr;

  1005.     }

  1006. 

  1007.     // -------------------------------------------------------------------

  1008.     // Plugin state calls

  1009. 

  1010.     void setParameterValue(const uint32_t index, const float value)

  1011.     {

  1012.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1013.         {

  1014.             if (index < plugin->getParameterCount())

  1015.                 plugin->setParameterValue(index, value, false, false, false);

  1016.         }

  1017.     }

  1018. 

  1019.     void setMidiProgram(const uint8_t, const uint32_t bank, const uint32_t program)

  1020.     {

  1021.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1022.             plugin->setMidiProgramById(bank, program, false, false, false);

  1023.     }

  1024. 

  1025.     // -------------------------------------------------------------------

  1026.     // Plugin process calls

  1027. 

  1028.     void activate()

  1029.     {

  1030. #if 0

  1031.         for (uint32_t i=0; i < pData->curPluginCount; ++i)

  1032.         {

  1033.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1034. 

  1035.             if (plugin == nullptr || ! plugin->isEnabled())

  1036.                 continue;

  1037. 

  1038.             plugin->setActive(true, true, false);

  1039.         }

  1040. #endif

  1041.         fIsActive = true;

  1042.     }

  1043. 

  1044.     void deactivate()

  1045.     {

  1046.         fIsActive = false;

  1047. #if 0

  1048.         for (uint32_t i=0; i < pData->curPluginCount; ++i)

  1049.         {

  1050.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1051. 

  1052.             if (plugin == nullptr || ! plugin->isEnabled())

  1053.                 continue;

  1054. 

  1055.             plugin->setActive(false, true, false);

  1056.         }

  1057. #endif

  1058. 

  1059.         // just in case

  1060.         runPendingRtEvents();

  1061.     }

  1062. 

  1063.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames, const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1064.     {

  1065.         if (pData->curPluginCount == 0 && ! fIsPatchbay)

  1066.         {

  1067.             FLOAT_COPY(outBuffer[0], inBuffer[0], frames);

  1068.             FLOAT_COPY(outBuffer[1], inBuffer[1], frames);

  1069. 

  1070.             return runPendingRtEvents();;

  1071.         }

  1072. 

  1073.         // ---------------------------------------------------------------

  1074.         // Time Info

  1075. 

  1076.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1077. 

  1078.         pData->timeInfo.playing = timeInfo->playing;

  1079.         pData->timeInfo.frame   = timeInfo->frame;

  1080.         pData->timeInfo.usecs   = timeInfo->usecs;

  1081.         pData->timeInfo.valid   = 0x0;

  1082. 

  1083.         if (timeInfo->bbt.valid)

  1084.         {

  1085.             pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;

  1086. 

  1087.             pData->timeInfo.bbt.bar = timeInfo->bbt.bar;

  1088.             pData->timeInfo.bbt.beat = timeInfo->bbt.beat;

  1089.             pData->timeInfo.bbt.tick = timeInfo->bbt.tick;

  1090.             pData->timeInfo.bbt.barStartTick = timeInfo->bbt.barStartTick;

  1091. 

  1092.             pData->timeInfo.bbt.beatsPerBar = timeInfo->bbt.beatsPerBar;

  1093.             pData->timeInfo.bbt.beatType = timeInfo->bbt.beatType;

  1094. 

  1095.             pData->timeInfo.bbt.ticksPerBeat = timeInfo->bbt.ticksPerBeat;

  1096.             pData->timeInfo.bbt.beatsPerMinute = timeInfo->bbt.beatsPerMinute;

  1097.         }

  1098. 

  1099.         // ---------------------------------------------------------------

  1100.         // initialize events

  1101. 

  1102.         carla_zeroStruct<EngineEvent>(pData->events.in,  kMaxEngineEventInternalCount);

  1103.         carla_zeroStruct<EngineEvent>(pData->events.out, kMaxEngineEventInternalCount);

  1104. 

  1105.         // ---------------------------------------------------------------

  1106.         // events input (before processing)

  1107. 

  1108.         {

  1109.             uint32_t engineEventIndex = 0;

  1110. 

  1111.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kMaxEngineEventInternalCount; ++i)

  1112.             {

  1113.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1114.                 EngineEvent&           engineEvent(pData->events.in[engineEventIndex++]);

  1115. 

  1116.                 engineEvent.time = midiEvent.time;

  1117.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data);

  1118. 

  1119.                 if (engineEventIndex >= kMaxEngineEventInternalCount)

  1120.                     break;

  1121.             }

  1122.         }

  1123. 

  1124.         if (fIsPatchbay)

  1125.         {

  1126.             // -----------------------------------------------------------

  1127.             // create audio buffers

  1128. 

  1129.             //float*   inBuf[2]    = { inBuffer[0], inBuffer[1] };

  1130.             //float*   outBuf[2]   = { outBuffer[0], outBuffer[1] };

  1131.             //uint32_t bufCount[2] = { 2, 2 };

  1132. 

  1133.             // -----------------------------------------------------------

  1134.             // process

  1135. 

  1136.             //pData->processPatchbay(inBuf, outBuf, bufCount, frames, isOffline());

  1137.         }

  1138.         else

  1139.         {

  1140.             // -----------------------------------------------------------

  1141.             // create audio buffers

  1142. 

  1143.             const float* inBuf[2]  = { inBuffer[0], inBuffer[1] };

  1144.                   float* outBuf[2] = { outBuffer[0], outBuffer[1] };

  1145. 

  1146.             // -----------------------------------------------------------

  1147.             // process

  1148. 

  1149.             pData->processRack(inBuf, outBuf, frames, isOffline());

  1150.         }

  1151. 

  1152.         // ---------------------------------------------------------------

  1153.         // events output (after processing)

  1154. 

  1155.         carla_zeroStruct<EngineEvent>(pData->events.in, kMaxEngineEventInternalCount);

  1156. 

  1157.         {

  1158.             NativeMidiEvent midiEvent;

  1159. 

  1160.             for (uint32_t i=0; i < kMaxEngineEventInternalCount; ++i)

  1161.             {

  1162.                 const EngineEvent& engineEvent(pData->events.out[i]);

  1163. 

  1164.                 if (engineEvent.type == kEngineEventTypeNull)

  1165.                     break;

  1166. 

  1167.                 midiEvent.time = engineEvent.time;

  1168. 

  1169.                 if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)

  1170.                 {

  1171.                     midiEvent.port = 0;

  1172.                     engineEvent.ctrl.convertToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);

  1173.                 }

  1174.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1175.                 {

  1176.                     if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)

  1177.                         continue;

  1178. 

  1179.                     midiEvent.port = engineEvent.midi.port;

  1180.                     midiEvent.size = engineEvent.midi.size;

  1181. 

  1182.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);

  1183. 

  1184.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1185.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1186.                 }

  1187.                 else

  1188.                 {

  1189.                     carla_stderr("Unknown event type...");

  1190.                     continue;

  1191.                 }

  1192. 

  1193.                 pHost->write_midi_event(pHost->handle, &midiEvent);

  1194.             }

  1195.         }

  1196. 

  1197.         runPendingRtEvents();

  1198.     }

  1199. 

  1200.     // -------------------------------------------------------------------

  1201.     // Plugin UI calls

  1202. 

  1203.     void uiShow(const bool show)

  1204.     {

  1205.         if (show)

  1206.         {

  1207.             if (fUiServer.isOk())

  1208.                 return;

  1209. 

  1210.             CarlaString path(pHost->resourceDir);

  1211.             path += "/carla-plugin";

  1212. 

  1213.             carla_stdout("Trying to start carla-plugin using \"%s\"", path.buffer());

  1214. 

  1215.             fUiServer.setData(path, pData->sampleRate, pHost->uiName);

  1216.             fUiServer.start();

  1217. 

  1218.             for (uint i=0; i < pData->curPluginCount; ++i)

  1219.             {

  1220.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1221. 

  1222.                 if (plugin != nullptr && plugin->isEnabled())

  1223.                 {

  1224.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());

  1225.                 }

  1226.             }

  1227.         }

  1228.         else

  1229.         {

  1230.             fUiServer.stop();

  1231.         }

  1232.     }

  1233. 

  1234.     void uiIdle()

  1235.     {

  1236.         CarlaEngine::idle();

  1237.         fUiServer.idle();

  1238. 

  1239.         if (! fUiServer.isOk())

  1240.             return;

  1241. 

  1242.         for (uint i=0; i < pData->curPluginCount; ++i)

  1243.         {

  1244.             const EnginePluginData& plugData(pData->plugins[i]);

  1245.             const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1246. 

  1247.             {

  1248.                 const CarlaMutexLocker cml(fUiServer.getWriteLock());

  1249. 

  1250.                 std::sprintf(fTmpBuf, "PEAKS_%i\n", i);

  1251.                 fUiServer.writeMsg(fTmpBuf);

  1252. 

  1253.                 std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);

  1254.                 fUiServer.writeMsg(fTmpBuf);

  1255.             }

  1256. 

  1257.             for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1258.             {

  1259.                 if (plugin->isParameterOutput(j))

  1260.                     continue;

  1261. 

  1262.                 const CarlaMutexLocker cml(fUiServer.getWriteLock());

  1263. 

  1264.                 std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1265.                 fUiServer.writeMsg(fTmpBuf);

  1266.                 std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));

  1267.                 fUiServer.writeMsg(fTmpBuf);

  1268.             }

  1269.         }

  1270. 

  1271.         switch (fUiServer.getAndResetUiState())

  1272.         {

  1273.         case CarlaExternalUI::UiNone:

  1274.         case CarlaExternalUI::UiShow:

  1275.             break;

  1276.         case CarlaExternalUI::UiCrashed:

  1277.             pHost->dispatcher(pHost->handle, HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1278.             break;

  1279.         case CarlaExternalUI::UiHide:

  1280.             pHost->ui_closed(pHost->handle);

  1281.             fUiServer.stop();

  1282.             break;

  1283.         }

  1284.     }

  1285. 

  1286.     // -------------------------------------------------------------------

  1287.     // Plugin state calls

  1288. 

  1289.     char* getState() const

  1290.     {

  1291.         QString string;

  1292.         QTextStream out(&string);

  1293.         out << "<?xml version='1.0' encoding='UTF-8'?>\n";

  1294.         out << "<!DOCTYPE CARLA-PROJECT>\n";

  1295.         out << "<CARLA-PROJECT VERSION='2.0'>\n";

  1296. 

  1297.         bool firstPlugin = true;

  1298.         char strBuf[STR_MAX+1];

  1299. 

  1300.         for (uint i=0; i < pData->curPluginCount; ++i)

  1301.         {

  1302.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1303. 

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

  1305.             {

  1306.                 if (! firstPlugin)

  1307.                     out << "\n";

  1308. 

  1309.                 strBuf[0] = '\0';

  1310. 

  1311.                 plugin->getRealName(strBuf);

  1312. 

  1313.                 //if (strBuf[0] != '\0')

  1314.                 //    out << QString(" <!-- %1 -->\n").arg(xmlSafeString(strBuf, true));

  1315. 

  1316.                 QString content;

  1317.                 fillXmlStringFromSaveState(content, plugin->getSaveState());

  1318. 

  1319.                 out << " <Plugin>\n";

  1320.                 out << content;

  1321.                 out << " </Plugin>\n";

  1322. 

  1323.                 firstPlugin = false;

  1324.             }

  1325.         }

  1326. 

  1327.         out << "</CARLA-PROJECT>\n";

  1328. 

  1329.         return strdup(string.toUtf8().constData());

  1330.     }

  1331. 

  1332.     void setState(const char* const data)

  1333.     {

  1334.         QDomDocument xml;

  1335.         xml.setContent(QString(data));

  1336. 

  1337.         QDomNode xmlNode(xml.documentElement());

  1338. 

  1339.         if (xmlNode.toElement().tagName().compare("carla-project", Qt::CaseInsensitive) != 0)

  1340.         {

  1341.             carla_stderr2("Not a valid Carla project");

  1342.             return;

  1343.         }

  1344. 

  1345.         //bool pluginsAdded = false;

  1346. 

  1347.         for (QDomNode node = xmlNode.firstChild(); ! node.isNull(); node = node.nextSibling())

  1348.         {

  1349.             if (node.toElement().tagName().compare("plugin", Qt::CaseInsensitive) == 0)

  1350.             {

  1351.                 SaveState saveState;

  1352.                 fillSaveStateFromXmlNode(saveState, node);

  1353. 

  1354.                 CARLA_SAFE_ASSERT_CONTINUE(saveState.type != nullptr);

  1355. 

  1356.                 const void* extraStuff = nullptr;

  1357. 

  1358.                 // check if using GIG, SF2 or SFZ 16outs

  1359.                 static const char kUse16OutsSuffix[] = " (16 outs)";

  1360. 

  1361.                 const PluginType ptype(getPluginTypeFromString(saveState.type));

  1362. 

  1363.                 if (CarlaString(saveState.label).endsWith(kUse16OutsSuffix))

  1364.                 {

  1365.                     if (ptype == PLUGIN_FILE_GIG || ptype == PLUGIN_FILE_SF2)

  1366.                         extraStuff = "true";

  1367.                 }

  1368. 

  1369.                 // TODO - proper find&load plugins

  1370. 

  1371.                 if (addPlugin(ptype, saveState.binary, saveState.name, saveState.label, saveState.uniqueId, extraStuff))

  1372.                 {

  1373.                     if (CarlaPlugin* const plugin = getPlugin(pData->curPluginCount-1))

  1374.                         plugin->loadSaveState(saveState);

  1375.                 }

  1376. 

  1377.                 //pluginsAdded = true;

  1378.             }

  1379.         }

  1380. 

  1381.         //if (pluginsAdded)

  1382.         //    pHost->dispatcher(pHost->handle, HOST_OPCODE_RELOAD_ALL, 0, 0, nullptr, 0.0f);

  1383.     }

  1384. 

  1385.     // -------------------------------------------------------------------

  1386. 

  1387. public:

  1388.     #define handlePtr ((CarlaEngineNative*)handle)

  1389. 

  1390.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1391.     {

  1392.         return new CarlaEngineNative(host, false);

  1393.     }

  1394. 

  1395. #ifdef HAVE_JUCE

  1396.     static NativePluginHandle _instantiatePatchbay(const NativeHostDescriptor* host)

  1397.     {

  1398.         return new CarlaEngineNative(host, true);

  1399.     }

  1400. #endif

  1401. 

  1402.     static void _cleanup(NativePluginHandle handle)

  1403.     {

  1404.         delete handlePtr;

  1405.     }

  1406. 

  1407.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1408.     {

  1409.         return handlePtr->getParameterCount();

  1410.     }

  1411. 

  1412.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1413.     {

  1414.         return handlePtr->getParameterInfo(index);

  1415.     }

  1416. 

  1417.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1418.     {

  1419.         return handlePtr->getParameterValue(index);

  1420.     }

  1421. 

  1422.     static const char* _get_parameter_text(NativePluginHandle handle, uint32_t index /*, float value*/)

  1423.     {

  1424.         return handlePtr->getParameterText(index /*, value*/);

  1425.     }

  1426. 

  1427.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1428.     {

  1429.         return handlePtr->getMidiProgramCount();

  1430.     }

  1431. 

  1432.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1433.     {

  1434.         return handlePtr->getMidiProgramInfo(index);

  1435.     }

  1436. 

  1437.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1438.     {

  1439.         handlePtr->setParameterValue(index, value);

  1440.     }

  1441. 

  1442.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1443.     {

  1444.         handlePtr->setMidiProgram(channel, bank, program);

  1445.     }

  1446. 

  1447.     static void _ui_show(NativePluginHandle handle, bool show)

  1448.     {

  1449.         handlePtr->uiShow(show);

  1450.     }

  1451. 

  1452.     static void _ui_idle(NativePluginHandle handle)

  1453.     {

  1454.         handlePtr->uiIdle();

  1455.     }

  1456. 

  1457.     static void _activate(NativePluginHandle handle)

  1458.     {

  1459.         handlePtr->activate();

  1460.     }

  1461. 

  1462.     static void _deactivate(NativePluginHandle handle)

  1463.     {

  1464.         handlePtr->deactivate();

  1465.     }

  1466. 

  1467.     static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1468.     {

  1469.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1470.     }

  1471. 

  1472.     static char* _get_state(NativePluginHandle handle)

  1473.     {

  1474.         return handlePtr->getState();

  1475.     }

  1476. 

  1477.     static void _set_state(NativePluginHandle handle, const char* data)

  1478.     {

  1479.         handlePtr->setState(data);

  1480.     }

  1481. 

  1482.     static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1483.     {

  1484.         switch(opcode)

  1485.         {

  1486.         case PLUGIN_OPCODE_NULL:

  1487.             return 0;

  1488.         case PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1489.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1490.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1491.             return 0;

  1492.         case PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1493.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1494.             return 0;

  1495.         case PLUGIN_OPCODE_OFFLINE_CHANGED:

  1496.             handlePtr->offlineModeChanged(value != 0);

  1497.             return 0;

  1498.         case PLUGIN_OPCODE_UI_NAME_CHANGED:

  1499.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1500.             return 0;

  1501.         }

  1502. 

  1503.         return 0;

  1504. 

  1505.         // unused

  1506.         (void)index;

  1507.         (void)ptr;

  1508.     }

  1509. 

  1510.     // -------------------------------------------------------------------

  1511. 

  1512.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)

  1513.     {

  1514.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);

  1515.     }

  1516. 

  1517.     // -------------------------------------------------------------------

  1518. 

  1519.     #undef handlePtr

  1520. 

  1521. private:

  1522.     const NativeHostDescriptor* const pHost;

  1523. 

  1524.     const bool fIsPatchbay; // rack if false

  1525.     bool fIsActive, fIsRunning;

  1526.     CarlaEngineNativeUI fUiServer;

  1527. 

  1528.     char fTmpBuf[STR_MAX+1];

  1529. 

  1530.     CarlaPlugin* _getFirstPlugin() const noexcept

  1531.     {

  1532.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1533.             return nullptr;

  1534. 

  1535.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1536. 

  1537.         if (plugin == nullptr || ! plugin->isEnabled())

  1538.             return nullptr;

  1539. 

  1540.         return pData->plugins[0].plugin;

  1541.     }

  1542. 

  1543.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1544. };

  1545. 

  1546. // -----------------------------------------------------------------------

  1547. 

  1548. static const NativePluginDescriptor carlaRackDesc = {

  1549.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1550.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1551.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1552.     /* audioIns  */ 2,

  1553.     /* audioOuts */ 2,

  1554.     /* midiIns   */ 1,

  1555.     /* midiOuts  */ 1,

  1556.     /* paramIns  */ 0,

  1557.     /* paramOuts */ 0,

  1558.     /* name      */ "Carla-Rack",

  1559.     /* label     */ "carlarack",

  1560.     /* maker     */ "falkTX",

  1561.     /* copyright */ "GNU GPL v2+",

  1562.     CarlaEngineNative::_instantiateRack,

  1563.     CarlaEngineNative::_cleanup,

  1564.     CarlaEngineNative::_get_parameter_count,

  1565.     CarlaEngineNative::_get_parameter_info,

  1566.     CarlaEngineNative::_get_parameter_value,

  1567.     CarlaEngineNative::_get_parameter_text,

  1568.     CarlaEngineNative::_get_midi_program_count,

  1569.     CarlaEngineNative::_get_midi_program_info,

  1570.     CarlaEngineNative::_set_parameter_value,

  1571.     CarlaEngineNative::_set_midi_program,

  1572.     /* _set_custom_data        */ nullptr,

  1573.     CarlaEngineNative::_ui_show,

  1574.     CarlaEngineNative::_ui_idle,

  1575.     /* _ui_set_parameter_value */ nullptr,

  1576.     /* _ui_set_midi_program    */ nullptr,

  1577.     /* _ui_set_custom_data     */ nullptr,

  1578.     CarlaEngineNative::_activate,

  1579.     CarlaEngineNative::_deactivate,

  1580.     CarlaEngineNative::_process,

  1581.     CarlaEngineNative::_get_state,

  1582.     CarlaEngineNative::_set_state,

  1583.     CarlaEngineNative::_dispatcher

  1584. };

  1585. 

  1586. #if 0 //def HAVE_JUCE

  1587. static const NativePluginDescriptor carlaPatchbayDesc = {

  1588.     /* category  */ ::PLUGIN_CATEGORY_OTHER,

  1589.     /* hints     */ static_cast<NativePluginHints>(::PLUGIN_IS_SYNTH|::PLUGIN_HAS_UI|::PLUGIN_NEEDS_FIXED_BUFFERS|::PLUGIN_NEEDS_SINGLE_THREAD|::PLUGIN_USES_STATE|::PLUGIN_USES_TIME),

  1590.     /* supports  */ static_cast<NativePluginSupports>(::PLUGIN_SUPPORTS_EVERYTHING),

  1591.     /* audioIns  */ 2,

  1592.     /* audioOuts */ 2,

  1593.     /* midiIns   */ 1,

  1594.     /* midiOuts  */ 1,

  1595.     /* paramIns  */ 0,

  1596.     /* paramOuts */ 0,

  1597.     /* name      */ "Carla-Patchbay",

  1598.     /* label     */ "carlapatchbay",

  1599.     /* maker     */ "falkTX",

  1600.     /* copyright */ "GNU GPL v2+",

  1601.     CarlaEngineNative::_instantiatePatchbay,

  1602.     CarlaEngineNative::_cleanup,

  1603.     CarlaEngineNative::_get_parameter_count,

  1604.     CarlaEngineNative::_get_parameter_info,

  1605.     CarlaEngineNative::_get_parameter_value,

  1606.     CarlaEngineNative::_get_parameter_text,

  1607.     CarlaEngineNative::_get_midi_program_count,

  1608.     CarlaEngineNative::_get_midi_program_info,

  1609.     CarlaEngineNative::_set_parameter_value,

  1610.     CarlaEngineNative::_set_midi_program,

  1611.     /* _set_custom_data        */ nullptr,

  1612.     CarlaEngineNative::_ui_show,

  1613.     CarlaEngineNative::_ui_idle,

  1614.     /* _ui_set_parameter_value */ nullptr,

  1615.     /* _ui_set_midi_program    */ nullptr,

  1616.     /* _ui_set_custom_data     */ nullptr,

  1617.     CarlaEngineNative::_activate,

  1618.     CarlaEngineNative::_deactivate,

  1619.     CarlaEngineNative::_process,

  1620.     CarlaEngineNative::_get_state,

  1621.     CarlaEngineNative::_set_state,

  1622.     CarlaEngineNative::_dispatcher

  1623. };

  1624. #endif

  1625. 

  1626. // -----------------------------------------------------------------------

  1627. 

  1628. CARLA_BACKEND_END_NAMESPACE

  1629. 

  1630. CARLA_EXPORT

  1631. void carla_register_native_plugin_carla();

  1632. 

  1633. void carla_register_native_plugin_carla()

  1634. {

  1635.     CARLA_BACKEND_USE_NAMESPACE;

  1636.     carla_register_native_plugin(&carlaRackDesc);

  1637. #if 0 //def HAVE_JUCE

  1638.     carla_register_native_plugin(&carlaPatchbayDesc);

  1639. #endif

  1640. }

  1641. 

  1642. // -----------------------------------------------------------------------

  1643. // Extra stuff for linking purposes

  1644. 

  1645. #ifdef CARLA_PLUGIN_EXPORT

  1646. 

  1647. CARLA_BACKEND_START_NAMESPACE

  1648. 

  1649. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  1650. 

  1651. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi)           { return nullptr; }

  1652. uint               CarlaEngine::getRtAudioApiCount()                 { return 0;       }

  1653. const char*        CarlaEngine::getRtAudioApiName(const uint)        { return nullptr; }

  1654. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const uint) { return nullptr; }

  1655. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const uint, const char* const) { return nullptr; }

  1656. 

  1657. # ifdef HAVE_JUCE

  1658. CarlaEngine*       CarlaEngine::newJuce(const AudioApi)           { return nullptr; }

  1659. uint               CarlaEngine::getJuceApiCount()                 { return 0;       }

  1660. const char*        CarlaEngine::getJuceApiName(const uint)        { return nullptr; }

  1661. const char* const* CarlaEngine::getJuceApiDeviceNames(const uint) { return nullptr; }

  1662. const EngineDriverDeviceInfo* CarlaEngine::getJuceDeviceInfo(const uint, const char* const) { return nullptr; }

  1663. # endif

  1664. 

  1665. CARLA_BACKEND_END_NAMESPACE

  1666. 

  1667. #ifdef WANT_DSSI

  1668. # include "CarlaDssiUtils.cpp"

  1669. #endif

  1670. 

  1671. #include "CarlaStateUtils.cpp"

  1672. 

  1673. #endif

  1674. 

  1675. // -----------------------------------------------------------------------