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

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  1. /*

  2.  * Carla Standalone

  3.  * Copyright (C) 2011-2022 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. // TODO:

  19. // Check carla_stderr2("Engine is not running"); <= prepend func name and args

  20. 

  21. #include "CarlaHostImpl.hpp"

  22. #include "CarlaMIDI.h"

  23. 

  24. #include "CarlaEngineInit.hpp"

  25. #include "CarlaPlugin.hpp"

  26. 

  27. #include "CarlaBackendUtils.hpp"

  28. #include "CarlaBase64Utils.hpp"

  29. #include "ThreadSafeFFTW.hpp"

  30. 

  31. #include "water/files/File.h"

  32. 

  33. #ifdef USING_JUCE

  34. # include "carla_juce/carla_juce.h"

  35. #endif

  36. 

  37. #define CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(cond, msg, ret) \

  38.     if (! (cond)) {                                              \

  39.         carla_stderr2("%s: " msg, __FUNCTION__);                 \

  40.         if (handle->isStandalone)                                \

  41.             ((CarlaHostStandalone*)handle)->lastError = msg;     \

  42.         return ret;                                              \

  43.     }

  44. 

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

  46. // Always return a valid string ptr for standalone functions

  47. 

  48. static const char* const gNullCharPtr = "";

  49. 

  50. static void checkStringPtr(const char*& charPtr) noexcept

  51. {

  52.     if (charPtr == nullptr)

  53.         charPtr = gNullCharPtr;

  54. }

  55. 

  56. // -------------------------------------------------------------------------------------------------------------------

  57. // Constructors

  58. 

  59. _CarlaPluginInfo::_CarlaPluginInfo() noexcept

  60.     : type(CB::PLUGIN_NONE),

  61.       category(CB::PLUGIN_CATEGORY_NONE),

  62.       hints(0x0),

  63.       optionsAvailable(0x0),

  64.       optionsEnabled(0x0),

  65.       filename(gNullCharPtr),

  66.       name(gNullCharPtr),

  67.       label(gNullCharPtr),

  68.       maker(gNullCharPtr),

  69.       copyright(gNullCharPtr),

  70.       iconName(gNullCharPtr),

  71.       uniqueId(0) {}

  72. 

  73. _CarlaPluginInfo::~_CarlaPluginInfo() noexcept

  74. {

  75.     if (label != gNullCharPtr)

  76.         delete[] label;

  77.     if (maker != gNullCharPtr)

  78.         delete[] maker;

  79.     if (copyright != gNullCharPtr)

  80.         delete[] copyright;

  81. }

  82. 

  83. _CarlaParameterInfo::_CarlaParameterInfo() noexcept

  84.     : name(gNullCharPtr),

  85.       symbol(gNullCharPtr),

  86.       unit(gNullCharPtr),

  87.       comment(gNullCharPtr),

  88.       groupName(gNullCharPtr),

  89.       scalePointCount(0) {}

  90. 

  91. _CarlaParameterInfo::~_CarlaParameterInfo() noexcept

  92. {

  93.     if (name != gNullCharPtr)

  94.         delete[] name;

  95.     if (symbol != gNullCharPtr)

  96.         delete[] symbol;

  97.     if (unit != gNullCharPtr)

  98.         delete[] unit;

  99.     if (comment != gNullCharPtr)

  100.         delete[] comment;

  101.     if (groupName != gNullCharPtr)

  102.         delete[] groupName;

  103. }

  104. 

  105. _CarlaScalePointInfo::_CarlaScalePointInfo() noexcept

  106.     : value(0.0f),

  107.       label(gNullCharPtr) {}

  108. 

  109. _CarlaScalePointInfo::~_CarlaScalePointInfo() noexcept

  110. {

  111.     if (label != gNullCharPtr)

  112.         delete[] label;

  113. }

  114. 

  115. _CarlaTransportInfo::_CarlaTransportInfo() noexcept

  116.     : playing(false),

  117.       frame(0),

  118.       bar(0),

  119.       beat(0),

  120.       tick(0),

  121.       bpm(0.0) {}

  122. 

  123. void _CarlaTransportInfo::clear() noexcept

  124. {

  125.     playing = false;

  126.     frame = 0;

  127.     bar = 0;

  128.     beat = 0;

  129.     tick = 0;

  130.     bpm = 0.0;

  131. }

  132. 

  133. // --------------------------------------------------------------------------------------------------------------------

  134. 

  135. using CARLA_BACKEND_NAMESPACE::CarlaPluginPtr;

  136. 

  137. // --------------------------------------------------------------------------------------------------------------------

  138. 

  139. uint carla_get_engine_driver_count()

  140. {

  141.     carla_debug("carla_get_engine_driver_count()");

  142. 

  143.     return CarlaEngine::getDriverCount();

  144. }

  145. 

  146. const char* carla_get_engine_driver_name(uint index)

  147. {

  148.     carla_debug("carla_get_engine_driver_name(%i)", index);

  149. 

  150.     return CarlaEngine::getDriverName(index);

  151. }

  152. 

  153. const char* const* carla_get_engine_driver_device_names(uint index)

  154. {

  155.     carla_debug("carla_get_engine_driver_device_names(%i)", index);

  156. 

  157.     return CarlaEngine::getDriverDeviceNames(index);

  158. }

  159. 

  160. const EngineDriverDeviceInfo* carla_get_engine_driver_device_info(uint index, const char* name)

  161. {

  162.     CARLA_SAFE_ASSERT_RETURN(name != nullptr, nullptr);

  163. 

  164.     static EngineDriverDeviceInfo retDevInfo;

  165.     static const uint32_t nullBufferSizes[] = { 0   };

  166.     static const double   nullSampleRates[] = { 0.0 };

  167. 

  168.     carla_debug("carla_get_engine_driver_device_info(%i, \"%s\")", index, name);

  169. 

  170.     if (const EngineDriverDeviceInfo* const devInfo = CarlaEngine::getDriverDeviceInfo(index, name))

  171.     {

  172.         retDevInfo.hints       = devInfo->hints;

  173.         retDevInfo.bufferSizes = devInfo->bufferSizes != nullptr ? devInfo->bufferSizes : nullBufferSizes;

  174.         retDevInfo.sampleRates = devInfo->sampleRates != nullptr ? devInfo->sampleRates : nullSampleRates;

  175.     }

  176.     else

  177.     {

  178.         retDevInfo.hints       = 0x0;

  179.         retDevInfo.bufferSizes = nullBufferSizes;

  180.         retDevInfo.sampleRates = nullSampleRates;

  181.     }

  182. 

  183.     return &retDevInfo;

  184. }

  185. 

  186. bool carla_show_engine_driver_device_control_panel(uint index, const char* name)

  187. {

  188.     return CarlaEngine::showDriverDeviceControlPanel(index, name);

  189. }

  190. 

  191. // --------------------------------------------------------------------------------------------------------------------

  192. 

  193. CarlaHostHandle carla_standalone_host_init(void)

  194. {

  195. #ifdef CARLA_OS_UNIX

  196.     static const ThreadSafeFFTW sThreadSafeFFTW;

  197. #endif

  198. 

  199.     static CarlaHostStandalone gStandalone;

  200. 

  201.     return &gStandalone;

  202. }

  203. 

  204. CarlaEngine* carla_get_engine_from_handle(CarlaHostHandle handle)

  205. {

  206.     carla_debug("carla_get_engine(%p)", handle);

  207. 

  208.     return handle->engine;

  209. }

  210. 

  211. // --------------------------------------------------------------------------------------------------------------------

  212. 

  213. static void carla_engine_init_common(const CarlaHostStandalone& standalone, CarlaEngine* const engine)

  214. {

  215.     engine->setCallback(standalone.engineCallback, standalone.engineCallbackPtr);

  216.     engine->setFileCallback(standalone.fileCallback, standalone.fileCallbackPtr);

  217. 

  218.     using water::File;

  219.     const File waterBinaryDir(File::getSpecialLocation(File::currentExecutableFile).getParentDirectory());

  220. 

  221. #ifdef BUILD_BRIDGE

  222.     /*

  223.     if (const char* const forceStereo = std::getenv("ENGINE_OPTION_FORCE_STEREO"))

  224.         engine->setOption(CB::ENGINE_OPTION_FORCE_STEREO, (std::strcmp(forceStereo, "true") == 0) ? 1 : 0, nullptr);

  225. 

  226.     if (const char* const preferPluginBridges = std::getenv("ENGINE_OPTION_PREFER_PLUGIN_BRIDGES"))

  227.         engine->setOption(CB::ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, (std::strcmp(preferPluginBridges, "true") == 0) ? 1 : 0, nullptr);

  228. 

  229.     if (const char* const preferUiBridges = std::getenv("ENGINE_OPTION_PREFER_UI_BRIDGES"))

  230.         engine->setOption(CB::ENGINE_OPTION_PREFER_UI_BRIDGES, (std::strcmp(preferUiBridges, "true") == 0) ? 1 : 0, nullptr);

  231.     */

  232. 

  233.     if (const char* const uisAlwaysOnTop = std::getenv("ENGINE_OPTION_UIS_ALWAYS_ON_TOP"))

  234.         engine->setOption(CB::ENGINE_OPTION_UIS_ALWAYS_ON_TOP, (std::strcmp(uisAlwaysOnTop, "true") == 0) ? 1 : 0, nullptr);

  235. 

  236.     if (const char* const maxParameters = std::getenv("ENGINE_OPTION_MAX_PARAMETERS"))

  237.         engine->setOption(CB::ENGINE_OPTION_MAX_PARAMETERS, std::atoi(maxParameters), nullptr);

  238. 

  239.     if (const char* const resetXruns = std::getenv("ENGINE_OPTION_RESET_XRUNS"))

  240.         engine->setOption(CB::ENGINE_OPTION_RESET_XRUNS, (std::strcmp(resetXruns, "true") == 0) ? 1 : 0, nullptr);

  241. 

  242.     if (const char* const uiBridgesTimeout = std::getenv("ENGINE_OPTION_UI_BRIDGES_TIMEOUT"))

  243.         engine->setOption(CB::ENGINE_OPTION_UI_BRIDGES_TIMEOUT, std::atoi(uiBridgesTimeout), nullptr);

  244. 

  245.     if (const char* const pathAudio = std::getenv("ENGINE_OPTION_FILE_PATH_AUDIO"))

  246.         engine->setOption(CB::ENGINE_OPTION_FILE_PATH, CB::FILE_AUDIO, pathAudio);

  247. 

  248.     if (const char* const pathMIDI = std::getenv("ENGINE_OPTION_FILE_PATH_MIDI"))

  249.         engine->setOption(CB::ENGINE_OPTION_FILE_PATH, CB::FILE_MIDI, pathMIDI);

  250. 

  251.     if (const char* const pathLADSPA = std::getenv("ENGINE_OPTION_PLUGIN_PATH_LADSPA"))

  252.         engine->setOption(CB::ENGINE_OPTION_PLUGIN_PATH, CB::PLUGIN_LADSPA, pathLADSPA);

  253. 

  254.     if (const char* const pathDSSI = std::getenv("ENGINE_OPTION_PLUGIN_PATH_DSSI"))

  255.         engine->setOption(CB::ENGINE_OPTION_PLUGIN_PATH, CB::PLUGIN_DSSI, pathDSSI);

  256. 

  257.     if (const char* const pathLV2 = std::getenv("ENGINE_OPTION_PLUGIN_PATH_LV2"))

  258.         engine->setOption(CB::ENGINE_OPTION_PLUGIN_PATH, CB::PLUGIN_LV2, pathLV2);

  259. 

  260.     if (const char* const pathVST2 = std::getenv("ENGINE_OPTION_PLUGIN_PATH_VST2"))

  261.         engine->setOption(CB::ENGINE_OPTION_PLUGIN_PATH, CB::PLUGIN_VST2, pathVST2);

  262. 

  263.     if (const char* const pathVST3 = std::getenv("ENGINE_OPTION_PLUGIN_PATH_VST3"))

  264.         engine->setOption(CB::ENGINE_OPTION_PLUGIN_PATH, CB::PLUGIN_VST3, pathVST3);

  265. 

  266.     if (const char* const pathSF2 = std::getenv("ENGINE_OPTION_PLUGIN_PATH_SF2"))

  267.         engine->setOption(CB::ENGINE_OPTION_PLUGIN_PATH, CB::PLUGIN_SF2, pathSF2);

  268. 

  269.     if (const char* const pathSFZ = std::getenv("ENGINE_OPTION_PLUGIN_PATH_SFZ"))

  270.         engine->setOption(CB::ENGINE_OPTION_PLUGIN_PATH, CB::PLUGIN_SFZ, pathSFZ);

  271. 

  272.     if (const char* const pathJSFX = std::getenv("ENGINE_OPTION_PLUGIN_PATH_JSFX"))

  273.         engine->setOption(CB::ENGINE_OPTION_PLUGIN_PATH, CB::PLUGIN_JSFX, pathJSFX);

  274. 

  275.     if (const char* const binaryDir = std::getenv("ENGINE_OPTION_PATH_BINARIES"))

  276.         engine->setOption(CB::ENGINE_OPTION_PATH_BINARIES, 0, binaryDir);

  277.     else

  278.         engine->setOption(CB::ENGINE_OPTION_PATH_BINARIES, 0, waterBinaryDir.getFullPathName().toRawUTF8());

  279. 

  280.     if (const char* const resourceDir = std::getenv("ENGINE_OPTION_PATH_RESOURCES"))

  281.         engine->setOption(CB::ENGINE_OPTION_PATH_RESOURCES, 0, resourceDir);

  282.     else

  283.         engine->setOption(CB::ENGINE_OPTION_PATH_RESOURCES, 0, waterBinaryDir.getChildFile("resources").getFullPathName().toRawUTF8());

  284. 

  285.     if (const char* const preventBadBehaviour = std::getenv("ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR"))

  286.         engine->setOption(CB::ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, (std::strcmp(preventBadBehaviour, "true") == 0) ? 1 : 0, nullptr);

  287. 

  288.     if (const char* const frontendWinId = std::getenv("ENGINE_OPTION_FRONTEND_WIN_ID"))

  289.         engine->setOption(CB::ENGINE_OPTION_FRONTEND_WIN_ID, 0, frontendWinId);

  290. #else

  291.     engine->setOption(CB::ENGINE_OPTION_FORCE_STEREO,          standalone.engineOptions.forceStereo         ? 1 : 0,        nullptr);

  292.     engine->setOption(CB::ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, standalone.engineOptions.preferPluginBridges ? 1 : 0,        nullptr);

  293.     engine->setOption(CB::ENGINE_OPTION_PREFER_UI_BRIDGES,     standalone.engineOptions.preferUiBridges     ? 1 : 0,        nullptr);

  294.     engine->setOption(CB::ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     standalone.engineOptions.uisAlwaysOnTop      ? 1 : 0,        nullptr);

  295.     engine->setOption(CB::ENGINE_OPTION_MAX_PARAMETERS,        static_cast<int>(standalone.engineOptions.maxParameters),    nullptr);

  296.     engine->setOption(CB::ENGINE_OPTION_RESET_XRUNS,           standalone.engineOptions.resetXruns          ? 1 : 0,        nullptr);

  297.     engine->setOption(CB::ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    static_cast<int>(standalone.engineOptions.uiBridgesTimeout), nullptr);

  298.     engine->setOption(CB::ENGINE_OPTION_AUDIO_BUFFER_SIZE,     static_cast<int>(standalone.engineOptions.audioBufferSize),  nullptr);

  299.     engine->setOption(CB::ENGINE_OPTION_AUDIO_SAMPLE_RATE,     static_cast<int>(standalone.engineOptions.audioSampleRate),  nullptr);

  300.     engine->setOption(CB::ENGINE_OPTION_AUDIO_TRIPLE_BUFFER,   standalone.engineOptions.audioTripleBuffer   ? 1 : 0,        nullptr);

  301. 

  302.     if (standalone.engineOptions.audioDriver != nullptr)

  303.         engine->setOption(CB::ENGINE_OPTION_AUDIO_DRIVER,      0, standalone.engineOptions.audioDriver);

  304. 

  305.     if (standalone.engineOptions.audioDevice != nullptr)

  306.         engine->setOption(CB::ENGINE_OPTION_AUDIO_DEVICE,      0, standalone.engineOptions.audioDevice);

  307. 

  308.     engine->setOption(CB::ENGINE_OPTION_OSC_ENABLED,  standalone.engineOptions.oscEnabled, nullptr);

  309.     engine->setOption(CB::ENGINE_OPTION_OSC_PORT_TCP, standalone.engineOptions.oscPortTCP, nullptr);

  310.     engine->setOption(CB::ENGINE_OPTION_OSC_PORT_UDP, standalone.engineOptions.oscPortUDP, nullptr);

  311. 

  312.     if (standalone.engineOptions.pathAudio != nullptr)

  313.         engine->setOption(CB::ENGINE_OPTION_FILE_PATH, CB::FILE_AUDIO, standalone.engineOptions.pathAudio);

  314. 

  315.     if (standalone.engineOptions.pathMIDI != nullptr)

  316.         engine->setOption(CB::ENGINE_OPTION_FILE_PATH, CB::FILE_MIDI, standalone.engineOptions.pathMIDI);

  317. 

  318.     if (standalone.engineOptions.pathLADSPA != nullptr)

  319.         engine->setOption(CB::ENGINE_OPTION_PLUGIN_PATH,       CB::PLUGIN_LADSPA, standalone.engineOptions.pathLADSPA);

  320. 

  321.     if (standalone.engineOptions.pathDSSI != nullptr)

  322.         engine->setOption(CB::ENGINE_OPTION_PLUGIN_PATH,       CB::PLUGIN_DSSI, standalone.engineOptions.pathDSSI);

  323. 

  324.     if (standalone.engineOptions.pathLV2 != nullptr)

  325.         engine->setOption(CB::ENGINE_OPTION_PLUGIN_PATH,       CB::PLUGIN_LV2, standalone.engineOptions.pathLV2);

  326. 

  327.     if (standalone.engineOptions.pathVST2 != nullptr)

  328.         engine->setOption(CB::ENGINE_OPTION_PLUGIN_PATH,       CB::PLUGIN_VST2, standalone.engineOptions.pathVST2);

  329. 

  330.     if (standalone.engineOptions.pathVST3 != nullptr)

  331.         engine->setOption(CB::ENGINE_OPTION_PLUGIN_PATH,       CB::PLUGIN_VST3, standalone.engineOptions.pathVST3);

  332. 

  333.     if (standalone.engineOptions.pathSF2 != nullptr)

  334.         engine->setOption(CB::ENGINE_OPTION_PLUGIN_PATH,       CB::PLUGIN_SF2, standalone.engineOptions.pathSF2);

  335. 

  336.     if (standalone.engineOptions.pathSFZ != nullptr)

  337.         engine->setOption(CB::ENGINE_OPTION_PLUGIN_PATH,       CB::PLUGIN_SFZ, standalone.engineOptions.pathSFZ);

  338. 

  339.     if (standalone.engineOptions.pathJSFX != nullptr)

  340.         engine->setOption(CB::ENGINE_OPTION_PLUGIN_PATH,       CB::PLUGIN_JSFX, standalone.engineOptions.pathJSFX);

  341. 

  342.     if (standalone.engineOptions.binaryDir != nullptr && standalone.engineOptions.binaryDir[0] != '\0')

  343.         engine->setOption(CB::ENGINE_OPTION_PATH_BINARIES, 0, standalone.engineOptions.binaryDir);

  344.     else

  345.         engine->setOption(CB::ENGINE_OPTION_PATH_BINARIES, 0, waterBinaryDir.getFullPathName().toRawUTF8());

  346. 

  347.     if (standalone.engineOptions.resourceDir != nullptr && standalone.engineOptions.resourceDir[0] != '\0')

  348.         engine->setOption(CB::ENGINE_OPTION_PATH_RESOURCES,    0, standalone.engineOptions.resourceDir);

  349. 

  350.     engine->setOption(CB::ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR,    standalone.engineOptions.preventBadBehaviour ? 1 : 0,  nullptr);

  351. 

  352.     engine->setOption(CB::ENGINE_OPTION_FRONTEND_BACKGROUND_COLOR, static_cast<int>(standalone.engineOptions.bgColor), nullptr);

  353.     engine->setOption(CB::ENGINE_OPTION_FRONTEND_FOREGROUND_COLOR, static_cast<int>(standalone.engineOptions.fgColor), nullptr);

  354.     engine->setOption(CB::ENGINE_OPTION_FRONTEND_UI_SCALE, static_cast<int>(standalone.engineOptions.uiScale * 1000.0f), nullptr);

  355. 

  356.     if (standalone.engineOptions.frontendWinId != 0)

  357.     {

  358.         char strBuf[STR_MAX+1];

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

  360.         std::snprintf(strBuf, STR_MAX, P_UINTPTR, standalone.engineOptions.frontendWinId);

  361.         engine->setOption(CB::ENGINE_OPTION_FRONTEND_WIN_ID, 0, strBuf);

  362.     }

  363.     else

  364.     {

  365.         engine->setOption(CB::ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0");

  366.     }

  367. 

  368. # ifndef CARLA_OS_WIN

  369.     if (standalone.engineOptions.wine.executable != nullptr && standalone.engineOptions.wine.executable[0] != '\0')

  370.         engine->setOption(CB::ENGINE_OPTION_WINE_EXECUTABLE, 0, standalone.engineOptions.wine.executable);

  371. 

  372.     engine->setOption(CB::ENGINE_OPTION_WINE_AUTO_PREFIX, standalone.engineOptions.wine.autoPrefix ? 1 : 0, nullptr);

  373. 

  374.     if (standalone.engineOptions.wine.fallbackPrefix != nullptr && standalone.engineOptions.wine.fallbackPrefix[0] != '\0')

  375.         engine->setOption(CB::ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, standalone.engineOptions.wine.fallbackPrefix);

  376. 

  377.     engine->setOption(CB::ENGINE_OPTION_WINE_RT_PRIO_ENABLED, standalone.engineOptions.wine.rtPrio ? 1 : 0, nullptr);

  378.     engine->setOption(CB::ENGINE_OPTION_WINE_BASE_RT_PRIO, standalone.engineOptions.wine.baseRtPrio, nullptr);

  379.     engine->setOption(CB::ENGINE_OPTION_WINE_SERVER_RT_PRIO, standalone.engineOptions.wine.serverRtPrio, nullptr);

  380. # endif

  381. 

  382.     engine->setOption(CB::ENGINE_OPTION_CLIENT_NAME_PREFIX, 0, standalone.engineOptions.clientNamePrefix);

  383. 

  384.     engine->setOption(CB::ENGINE_OPTION_PLUGINS_ARE_STANDALONE, standalone.engineOptions.pluginsAreStandalone, nullptr);

  385. #endif // BUILD_BRIDGE

  386. }

  387. 

  388. bool carla_engine_init(CarlaHostHandle handle, const char* driverName, const char* clientName)

  389. {

  390.     CARLA_SAFE_ASSERT_RETURN(driverName != nullptr && driverName[0] != '\0', false);

  391.     CARLA_SAFE_ASSERT_RETURN(clientName != nullptr && clientName[0] != '\0', false);

  392.     carla_debug("carla_engine_init(%p, \"%s\", \"%s\")", handle, driverName, clientName);

  393. 

  394.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->isStandalone, "Must be a standalone host handle", false);

  395.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine == nullptr, "Engine is already initialized", false);

  396. 

  397. #ifdef CARLA_OS_WIN

  398.     carla_setenv("WINEASIO_CLIENT_NAME", clientName);

  399. #endif

  400. 

  401. #ifdef USING_JUCE

  402.     CarlaJUCE::initialiseJuce_GUI();

  403. #endif

  404. 

  405.     CarlaHostStandalone& shandle((CarlaHostStandalone&)*handle);

  406. 

  407.     CarlaEngine* const engine = CarlaEngine::newDriverByName(driverName);

  408.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(engine != nullptr, "The selected audio driver is not available", false);

  409. 

  410.     shandle.engine = engine;

  411. 

  412. #ifdef BUILD_BRIDGE

  413.     if (std::getenv("CARLA_BRIDGE_DUMMY") != nullptr)

  414.     {

  415.         // engine->setOption(CB::ENGINE_OPTION_PROCESS_MODE,      CB::ENGINE_PROCESS_MODE_PATCHBAY,         nullptr);

  416.         engine->setOption(CB::ENGINE_OPTION_PROCESS_MODE,      CB::ENGINE_PROCESS_MODE_CONTINUOUS_RACK,  nullptr);

  417.         engine->setOption(CB::ENGINE_OPTION_TRANSPORT_MODE,    CB::ENGINE_TRANSPORT_MODE_INTERNAL,       nullptr);

  418. 

  419.         engine->setOption(CB::ENGINE_OPTION_AUDIO_BUFFER_SIZE, 4096, nullptr);

  420.         engine->setOption(CB::ENGINE_OPTION_AUDIO_SAMPLE_RATE, 48000, nullptr);

  421.     }

  422.     else

  423.     {

  424.         engine->setOption(CB::ENGINE_OPTION_PROCESS_MODE,      CB::ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS, nullptr);

  425.         engine->setOption(CB::ENGINE_OPTION_TRANSPORT_MODE,    CB::ENGINE_TRANSPORT_MODE_JACK,           nullptr);

  426.     }

  427.     engine->setOption(CB::ENGINE_OPTION_FORCE_STEREO,          false,                                    nullptr);

  428.     engine->setOption(CB::ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, false,                                    nullptr);

  429.     engine->setOption(CB::ENGINE_OPTION_PREFER_UI_BRIDGES,     false,                                    nullptr);

  430. #else

  431.     engine->setOption(CB::ENGINE_OPTION_PROCESS_MODE,          static_cast<int>(shandle.engineOptions.processMode),   nullptr);

  432.     engine->setOption(CB::ENGINE_OPTION_TRANSPORT_MODE,        static_cast<int>(shandle.engineOptions.transportMode), shandle.engineOptions.transportExtra);

  433. #endif

  434. 

  435.     carla_engine_init_common(shandle, engine);

  436. 

  437.     if (engine->init(clientName))

  438.     {

  439. #ifdef CARLA_CAN_USE_LOG_THREAD

  440.         if (shandle.logThreadEnabled && std::getenv("CARLA_LOGS_DISABLED") == nullptr)

  441.             shandle.logThread.init();

  442. #endif

  443.         shandle.lastError = "No error";

  444.         return true;

  445.     }

  446.     else

  447.     {

  448.         shandle.lastError = engine->getLastError();

  449.         shandle.engine = nullptr;

  450.         delete engine;

  451. #ifdef USING_JUCE

  452.         CarlaJUCE::shutdownJuce_GUI();

  453. #endif

  454.         return false;

  455.     }

  456. }

  457. 

  458. #ifdef BUILD_BRIDGE

  459. bool carla_engine_init_bridge(CarlaHostHandle handle,

  460.                               const char audioBaseName[6+1],

  461.                               const char rtClientBaseName[6+1],

  462.                               const char nonRtClientBaseName[6+1],

  463.                               const char nonRtServerBaseName[6+1],

  464.                               const char* const clientName)

  465. {

  466.     CARLA_SAFE_ASSERT_RETURN(audioBaseName != nullptr && audioBaseName[0] != '\0', false);

  467.     CARLA_SAFE_ASSERT_RETURN(rtClientBaseName != nullptr && rtClientBaseName[0] != '\0', false);

  468.     CARLA_SAFE_ASSERT_RETURN(nonRtClientBaseName != nullptr && nonRtClientBaseName[0] != '\0', false);

  469.     CARLA_SAFE_ASSERT_RETURN(nonRtServerBaseName != nullptr && nonRtServerBaseName[0] != '\0', false);

  470.     CARLA_SAFE_ASSERT_RETURN(clientName != nullptr && clientName[0] != '\0', false);

  471.     carla_debug("carla_engine_init_bridge(%p, \"%s\", \"%s\", \"%s\", \"%s\", \"%s\")",

  472.                 handle, audioBaseName, rtClientBaseName, nonRtClientBaseName, nonRtServerBaseName, clientName);

  473. 

  474.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->isStandalone, "Must be a standalone host handle", false);

  475.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine == nullptr, "Engine is already initialized", false);

  476. 

  477.     CarlaScopedPointer<CarlaEngine> engine(CB::EngineInit::newBridge(audioBaseName,

  478.                                                                      rtClientBaseName,

  479.                                                                      nonRtClientBaseName,

  480.                                                                      nonRtServerBaseName));

  481. 

  482.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(engine != nullptr, "The selected audio driver is not available", false);

  483. 

  484.     engine->setOption(CB::ENGINE_OPTION_PROCESS_MODE,   CB::ENGINE_PROCESS_MODE_BRIDGE,   nullptr);

  485.     engine->setOption(CB::ENGINE_OPTION_TRANSPORT_MODE, CB::ENGINE_TRANSPORT_MODE_BRIDGE, nullptr);

  486. 

  487.     CarlaHostStandalone& shandle((CarlaHostStandalone&)*handle);

  488. 

  489.     carla_engine_init_common(shandle, engine);

  490. 

  491.     if (engine->init(clientName))

  492.     {

  493.         shandle.lastError = "No error";

  494.         shandle.engine = engine.release();

  495.         return true;

  496.     }

  497.     else

  498.     {

  499.         shandle.lastError = engine->getLastError();

  500.         return false;

  501.     }

  502. }

  503. #endif

  504. 

  505. bool carla_engine_close(CarlaHostHandle handle)

  506. {

  507.     carla_debug("carla_engine_close(%p)", handle);

  508. 

  509.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->isStandalone, "Must be a standalone host handle", false);

  510.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  511. 

  512.     CarlaHostStandalone& shandle((CarlaHostStandalone&)*handle);

  513. 

  514.     CarlaEngine* const engine = shandle.engine;

  515. 

  516.     engine->setAboutToClose();

  517.     engine->removeAllPlugins();

  518. 

  519.     const bool closed = engine->close();

  520. 

  521.     if (! closed)

  522.         shandle.lastError = engine->getLastError();

  523. 

  524. #ifdef CARLA_CAN_USE_LOG_THREAD

  525.     shandle.logThread.stop();

  526. #endif

  527. 

  528.     shandle.engine = nullptr;

  529.     delete engine;

  530. 

  531. #ifdef USING_JUCE

  532.     CarlaJUCE::shutdownJuce_GUI();

  533. #endif

  534.     return closed;

  535. }

  536. 

  537. void carla_engine_idle(CarlaHostHandle handle)

  538. {

  539.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->isStandalone,);

  540. 

  541.     handle->engine->idle();

  542. 

  543. #ifdef USING_JUCE

  544.     if (handle->isStandalone)

  545.         CarlaJUCE::idleJuce_GUI();

  546. #endif

  547. }

  548. 

  549. bool carla_is_engine_running(CarlaHostHandle handle)

  550. {

  551.     return (handle->engine != nullptr && handle->engine->isRunning());

  552. }

  553. 

  554. const CarlaRuntimeEngineInfo* carla_get_runtime_engine_info(CarlaHostHandle handle)

  555. {

  556.     static CarlaRuntimeEngineInfo retInfo;

  557. 

  558.     // reset

  559.     retInfo.load = 0.0f;

  560.     retInfo.xruns = 0;

  561. 

  562.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retInfo);

  563. 

  564.     retInfo.load = handle->engine->getDSPLoad();

  565.     retInfo.xruns = handle->engine->getTotalXruns();

  566. 

  567.     return &retInfo;

  568. }

  569. 

  570. #ifndef BUILD_BRIDGE

  571. const CarlaRuntimeEngineDriverDeviceInfo* carla_get_runtime_engine_driver_device_info(CarlaHostHandle handle)

  572. {

  573.     static CarlaRuntimeEngineDriverDeviceInfo retInfo;

  574. 

  575.     // reset

  576.     retInfo.name = gNullCharPtr;

  577.     retInfo.hints = 0x0;

  578.     retInfo.bufferSize = 0;

  579.     retInfo.bufferSizes = nullptr;

  580.     retInfo.sampleRate = 0.0;

  581.     retInfo.sampleRates = nullptr;

  582. 

  583.     const char* audioDriver;

  584.     const char* audioDevice;

  585. 

  586.     if (CarlaEngine* const engine = handle->engine)

  587.     {

  588.         audioDriver = engine->getCurrentDriverName();

  589.         audioDevice = engine->getOptions().audioDevice;

  590. 

  591.         retInfo.bufferSize = engine->getBufferSize();

  592.         retInfo.sampleRate = engine->getSampleRate();

  593.     }

  594.     else if (handle->isStandalone)

  595.     {

  596.         CarlaHostStandalone& shandle((CarlaHostStandalone&)*handle);

  597. 

  598.         audioDriver = shandle.engineOptions.audioDriver;

  599.         audioDevice = shandle.engineOptions.audioDevice;

  600. 

  601.         retInfo.bufferSize = shandle.engineOptions.audioBufferSize;

  602.         retInfo.sampleRate = shandle.engineOptions.audioSampleRate;

  603.     }

  604.     else

  605.     {

  606.         return &retInfo;

  607.     }

  608.     CARLA_SAFE_ASSERT_RETURN(audioDriver != nullptr, &retInfo);

  609.     CARLA_SAFE_ASSERT_RETURN(audioDevice != nullptr, &retInfo);

  610. 

  611.     uint index = 0;

  612.     uint count = CarlaEngine::getDriverCount();

  613.     for (; index<count; ++index)

  614.     {

  615.         const char* const testDriverName = CarlaEngine::getDriverName(index);

  616.         CARLA_SAFE_ASSERT_CONTINUE(testDriverName != nullptr);

  617. 

  618.         if (std::strcmp(testDriverName, audioDriver) == 0)

  619.             break;

  620.     }

  621.     CARLA_SAFE_ASSERT_RETURN(index != count, &retInfo);

  622. 

  623.     const EngineDriverDeviceInfo* const devInfo = CarlaEngine::getDriverDeviceInfo(index, audioDevice);

  624.     CARLA_SAFE_ASSERT_RETURN(devInfo != nullptr, &retInfo);

  625. 

  626.     retInfo.name        = audioDevice;

  627.     retInfo.hints       = devInfo->hints;

  628.     retInfo.bufferSizes = devInfo->bufferSizes;

  629.     retInfo.sampleRates = devInfo->sampleRates;

  630. 

  631.     return &retInfo;

  632. }

  633. 

  634. bool carla_set_engine_buffer_size_and_sample_rate(CarlaHostHandle handle, uint bufferSize, double sampleRate)

  635. {

  636.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, false);

  637.     carla_debug("carla_set_engine_buffer_size_and_sample_rate(%p, %u, %f)", handle, bufferSize, sampleRate);

  638. 

  639.     return handle->engine->setBufferSizeAndSampleRate(bufferSize, sampleRate);

  640. }

  641. 

  642. bool carla_show_engine_device_control_panel(CarlaHostHandle handle)

  643. {

  644.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, false);

  645.     carla_debug("carla_show_engine_device_control_panel(%p)", handle);

  646. 

  647.     return handle->engine->showDeviceControlPanel();

  648. }

  649. #endif // BUILD_BRIDGE

  650. 

  651. void carla_clear_engine_xruns(CarlaHostHandle handle)

  652. {

  653.     if (handle->engine != nullptr)

  654.         handle->engine->clearXruns();

  655. }

  656. 

  657. void carla_cancel_engine_action(CarlaHostHandle handle)

  658. {

  659.     if (handle->engine != nullptr)

  660.         handle->engine->setActionCanceled(true);

  661. }

  662. 

  663. bool carla_set_engine_about_to_close(CarlaHostHandle handle)

  664. {

  665.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, true);

  666.     carla_debug("carla_set_engine_about_to_close(%p)", handle);

  667. 

  668.     return handle->engine->setAboutToClose();

  669. }

  670. 

  671. void carla_set_engine_callback(CarlaHostHandle handle, EngineCallbackFunc func, void* ptr)

  672. {

  673.     carla_debug("carla_set_engine_callback(%p, %p, %p)", handle, func, ptr);

  674. 

  675.     if (handle->isStandalone)

  676.     {

  677.         CarlaHostStandalone& shandle((CarlaHostStandalone&)*handle);

  678. 

  679.         shandle.engineCallback    = func;

  680.         shandle.engineCallbackPtr = ptr;

  681. 

  682. #ifdef CARLA_CAN_USE_LOG_THREAD

  683.         shandle.logThread.setCallback(func, ptr);

  684. #endif

  685.     }

  686. 

  687.     if (handle->engine != nullptr)

  688.         handle->engine->setCallback(func, ptr);

  689. }

  690. 

  691. void carla_set_engine_option(CarlaHostHandle handle, EngineOption option, int value, const char* valueStr)

  692. {

  693.     carla_debug("carla_set_engine_option(%p, %i:%s, %i, \"%s\")",

  694.                 handle, option, CB::EngineOption2Str(option), value, valueStr);

  695. 

  696.     if (handle->isStandalone)

  697.     {

  698.         CarlaHostStandalone& shandle((CarlaHostStandalone&)*handle);

  699. 

  700.         switch (option)

  701.         {

  702.         case CB::ENGINE_OPTION_DEBUG:

  703.             break;

  704. 

  705.         case CB::ENGINE_OPTION_PROCESS_MODE:

  706.             CARLA_SAFE_ASSERT_RETURN(value >= CB::ENGINE_PROCESS_MODE_SINGLE_CLIENT && value < CB::ENGINE_PROCESS_MODE_BRIDGE,);

  707.             shandle.engineOptions.processMode = static_cast<CB::EngineProcessMode>(value);

  708.             break;

  709. 

  710.         case CB::ENGINE_OPTION_TRANSPORT_MODE:

  711.             CARLA_SAFE_ASSERT_RETURN(value >= CB::ENGINE_TRANSPORT_MODE_DISABLED && value <= CB::ENGINE_TRANSPORT_MODE_BRIDGE,);

  712. 

  713.             // jack transport cannot be disabled in multi-client

  714.             if (shandle.engineOptions.processMode == CB::ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS

  715.                 && value != CB::ENGINE_TRANSPORT_MODE_JACK)

  716.             {

  717.                 shandle.engineOptions.transportMode = CB::ENGINE_TRANSPORT_MODE_JACK;

  718. 

  719.                 if (shandle.engineCallback != nullptr)

  720.                     shandle.engineCallback(shandle.engineCallbackPtr,

  721.                                            CB::ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED,

  722.                                            0,

  723.                                            CB::ENGINE_TRANSPORT_MODE_JACK,

  724.                                            0, 0, 0.0f,

  725.                                            shandle.engineOptions.transportExtra);

  726.             }

  727.             else

  728.             {

  729.                 shandle.engineOptions.transportMode = static_cast<CB::EngineTransportMode>(value);

  730.             }

  731. 

  732.             delete[] shandle.engineOptions.transportExtra;

  733.             if (value != CB::ENGINE_TRANSPORT_MODE_DISABLED && valueStr != nullptr)

  734.                 shandle.engineOptions.transportExtra = carla_strdup_safe(valueStr);

  735.             else

  736.                 shandle.engineOptions.transportExtra = nullptr;

  737.             break;

  738. 

  739.         case CB::ENGINE_OPTION_FORCE_STEREO:

  740.             CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  741.             shandle.engineOptions.forceStereo = (value != 0);

  742.             break;

  743. 

  744.         case CB::ENGINE_OPTION_PREFER_PLUGIN_BRIDGES:

  745.             CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  746.             shandle.engineOptions.preferPluginBridges = (value != 0);

  747.             break;

  748. 

  749.         case CB::ENGINE_OPTION_PREFER_UI_BRIDGES:

  750.             CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  751.             shandle.engineOptions.preferUiBridges = (value != 0);

  752.             break;

  753. 

  754.         case CB::ENGINE_OPTION_UIS_ALWAYS_ON_TOP:

  755.             CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  756.             shandle.engineOptions.uisAlwaysOnTop = (value != 0);

  757.             break;

  758. 

  759.         case CB::ENGINE_OPTION_MAX_PARAMETERS:

  760.             CARLA_SAFE_ASSERT_RETURN(value >= 0,);

  761.             shandle.engineOptions.maxParameters = static_cast<uint>(value);

  762.             break;

  763. 

  764.         case CB::ENGINE_OPTION_RESET_XRUNS:

  765.             CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  766.             shandle.engineOptions.resetXruns = (value != 0);

  767.             break;

  768. 

  769.         case CB::ENGINE_OPTION_UI_BRIDGES_TIMEOUT:

  770.             CARLA_SAFE_ASSERT_RETURN(value >= 0,);

  771.             shandle.engineOptions.uiBridgesTimeout = static_cast<uint>(value);

  772.             break;

  773. 

  774.         case CB::ENGINE_OPTION_AUDIO_BUFFER_SIZE:

  775.             CARLA_SAFE_ASSERT_RETURN(value >= 8,);

  776.             shandle.engineOptions.audioBufferSize = static_cast<uint>(value);

  777.             break;

  778. 

  779.         case CB::ENGINE_OPTION_AUDIO_SAMPLE_RATE:

  780.             CARLA_SAFE_ASSERT_RETURN(value >= 22050,);

  781.             shandle.engineOptions.audioSampleRate = static_cast<uint>(value);

  782.             break;

  783. 

  784.         case CB::ENGINE_OPTION_AUDIO_TRIPLE_BUFFER:

  785.             CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  786.             shandle.engineOptions.audioTripleBuffer = (value != 0);

  787.             break;

  788. 

  789.         case CB::ENGINE_OPTION_AUDIO_DRIVER:

  790.             CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr,);

  791. 

  792.             if (shandle.engineOptions.audioDriver != nullptr)

  793.                 delete[] shandle.engineOptions.audioDriver;

  794. 

  795.             shandle.engineOptions.audioDriver = carla_strdup_safe(valueStr);

  796.             break;

  797. 

  798.         case CB::ENGINE_OPTION_AUDIO_DEVICE:

  799.             CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr,);

  800. 

  801.             if (shandle.engineOptions.audioDevice != nullptr)

  802.                 delete[] shandle.engineOptions.audioDevice;

  803. 

  804.             shandle.engineOptions.audioDevice = carla_strdup_safe(valueStr);

  805.             break;

  806. 

  807. #ifndef BUILD_BRIDGE

  808.         case CB::ENGINE_OPTION_OSC_ENABLED:

  809.             CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  810.             shandle.engineOptions.oscEnabled = (value != 0);

  811.             break;

  812. 

  813.         case CB::ENGINE_OPTION_OSC_PORT_TCP:

  814.             CARLA_SAFE_ASSERT_RETURN(value <= 0 || value >= 1024,);

  815.             shandle.engineOptions.oscPortTCP = value;

  816.             break;

  817. 

  818.         case CB::ENGINE_OPTION_OSC_PORT_UDP:

  819.             CARLA_SAFE_ASSERT_RETURN(value <= 0 || value >= 1024,);

  820.             shandle.engineOptions.oscPortUDP = value;

  821.             break;

  822. #endif

  823. 

  824.         case CB::ENGINE_OPTION_FILE_PATH:

  825.             CARLA_SAFE_ASSERT_RETURN(value > CB::FILE_NONE,);

  826.             CARLA_SAFE_ASSERT_RETURN(value <= CB::FILE_MIDI,);

  827.             CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr,);

  828. 

  829.             switch (value)

  830.             {

  831.             case CB::FILE_AUDIO:

  832.                 if (shandle.engineOptions.pathAudio != nullptr)

  833.                     delete[] shandle.engineOptions.pathAudio;

  834.                 shandle.engineOptions.pathAudio = carla_strdup_safe(valueStr);

  835.                 break;

  836.             case CB::FILE_MIDI:

  837.                 if (shandle.engineOptions.pathMIDI != nullptr)

  838.                     delete[] shandle.engineOptions.pathMIDI;

  839.                 shandle.engineOptions.pathMIDI = carla_strdup_safe(valueStr);

  840.                 break;

  841.             }

  842.             break;

  843. 

  844.         case CB::ENGINE_OPTION_PLUGIN_PATH:

  845.             CARLA_SAFE_ASSERT_RETURN(value > CB::PLUGIN_NONE,);

  846.             CARLA_SAFE_ASSERT_RETURN(value <= CB::PLUGIN_JSFX,);

  847.             CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr,);

  848. 

  849.             switch (value)

  850.             {

  851.             case CB::PLUGIN_LADSPA:

  852.                 if (shandle.engineOptions.pathLADSPA != nullptr)

  853.                     delete[] shandle.engineOptions.pathLADSPA;

  854.                 shandle.engineOptions.pathLADSPA = carla_strdup_safe(valueStr);

  855.                 break;

  856.             case CB::PLUGIN_DSSI:

  857.                 if (shandle.engineOptions.pathDSSI != nullptr)

  858.                     delete[] shandle.engineOptions.pathDSSI;

  859.                 shandle.engineOptions.pathDSSI = carla_strdup_safe(valueStr);

  860.                 break;

  861.             case CB::PLUGIN_LV2:

  862.                 if (shandle.engineOptions.pathLV2 != nullptr)

  863.                     delete[] shandle.engineOptions.pathLV2;

  864.                 shandle.engineOptions.pathLV2 = carla_strdup_safe(valueStr);

  865.                 break;

  866.             case CB::PLUGIN_VST2:

  867.                 if (shandle.engineOptions.pathVST2 != nullptr)

  868.                     delete[] shandle.engineOptions.pathVST2;

  869.                 shandle.engineOptions.pathVST2 = carla_strdup_safe(valueStr);

  870.                 break;

  871.             case CB::PLUGIN_VST3:

  872.                 if (shandle.engineOptions.pathVST3 != nullptr)

  873.                     delete[] shandle.engineOptions.pathVST3;

  874.                 shandle.engineOptions.pathVST3 = carla_strdup_safe(valueStr);

  875.                 break;

  876.             case CB::PLUGIN_SF2:

  877.                 if (shandle.engineOptions.pathSF2 != nullptr)

  878.                     delete[] shandle.engineOptions.pathSF2;

  879.                 shandle.engineOptions.pathSF2 = carla_strdup_safe(valueStr);

  880.                 break;

  881.             case CB::PLUGIN_SFZ:

  882.                 if (shandle.engineOptions.pathSFZ != nullptr)

  883.                     delete[] shandle.engineOptions.pathSFZ;

  884.                 shandle.engineOptions.pathSFZ = carla_strdup_safe(valueStr);

  885.                 break;

  886.             case CB::PLUGIN_JSFX:

  887.                 if (shandle.engineOptions.pathJSFX != nullptr)

  888.                     delete[] shandle.engineOptions.pathJSFX;

  889.                 shandle.engineOptions.pathJSFX = carla_strdup_safe(valueStr);

  890.                 break;

  891.             }

  892.             break;

  893. 

  894.         case CB::ENGINE_OPTION_PATH_BINARIES:

  895.             CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  896. 

  897.             if (shandle.engineOptions.binaryDir != nullptr)

  898.                 delete[] shandle.engineOptions.binaryDir;

  899. 

  900.             shandle.engineOptions.binaryDir = carla_strdup_safe(valueStr);

  901.             break;

  902. 

  903.         case CB::ENGINE_OPTION_PATH_RESOURCES:

  904.             CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  905. 

  906.             if (shandle.engineOptions.resourceDir != nullptr)

  907.                 delete[] shandle.engineOptions.resourceDir;

  908. 

  909.             shandle.engineOptions.resourceDir = carla_strdup_safe(valueStr);

  910.             break;

  911. 

  912.         case CB::ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR:

  913.             CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  914.             shandle.engineOptions.preventBadBehaviour = (value != 0);

  915.             break;

  916. 

  917.         case CB::ENGINE_OPTION_FRONTEND_BACKGROUND_COLOR:

  918.             shandle.engineOptions.bgColor = static_cast<uint>(value);

  919.             break;

  920. 

  921.         case CB::ENGINE_OPTION_FRONTEND_FOREGROUND_COLOR:

  922.             shandle.engineOptions.fgColor = static_cast<uint>(value);

  923.             break;

  924. 

  925.         case CB::ENGINE_OPTION_FRONTEND_UI_SCALE:

  926.             CARLA_SAFE_ASSERT_RETURN(value > 0,);

  927.             shandle.engineOptions.uiScale = static_cast<float>(value) / 1000;

  928.             break;

  929. 

  930.         case CB::ENGINE_OPTION_FRONTEND_WIN_ID: {

  931.             CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  932.             const long long winId(std::strtoll(valueStr, nullptr, 16));

  933.             CARLA_SAFE_ASSERT_RETURN(winId >= 0,);

  934.             shandle.engineOptions.frontendWinId = static_cast<uintptr_t>(winId);

  935.         }   break;

  936. 

  937. #if !defined(BUILD_BRIDGE_ALTERNATIVE_ARCH) && !defined(CARLA_OS_WIN)

  938.         case CB::ENGINE_OPTION_WINE_EXECUTABLE:

  939.             CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  940. 

  941.             if (shandle.engineOptions.wine.executable != nullptr)

  942.                 delete[] shandle.engineOptions.wine.executable;

  943. 

  944.             shandle.engineOptions.wine.executable = carla_strdup_safe(valueStr);

  945.             break;

  946. 

  947.         case CB::ENGINE_OPTION_WINE_AUTO_PREFIX:

  948.             CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  949.             shandle.engineOptions.wine.autoPrefix = (value != 0);

  950.             break;

  951. 

  952.         case CB::ENGINE_OPTION_WINE_FALLBACK_PREFIX:

  953.             CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  954. 

  955.             if (shandle.engineOptions.wine.fallbackPrefix != nullptr)

  956.                 delete[] shandle.engineOptions.wine.fallbackPrefix;

  957. 

  958.             shandle.engineOptions.wine.fallbackPrefix = carla_strdup_safe(valueStr);

  959.             break;

  960. 

  961.         case CB::ENGINE_OPTION_WINE_RT_PRIO_ENABLED:

  962.             CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  963.             shandle.engineOptions.wine.rtPrio = (value != 0);

  964.             break;

  965. 

  966.         case CB::ENGINE_OPTION_WINE_BASE_RT_PRIO:

  967.             CARLA_SAFE_ASSERT_RETURN(value >= 1 && value <= 89,);

  968.             shandle.engineOptions.wine.baseRtPrio = value;

  969.             break;

  970. 

  971.         case CB::ENGINE_OPTION_WINE_SERVER_RT_PRIO:

  972.             CARLA_SAFE_ASSERT_RETURN(value >= 1 && value <= 99,);

  973.             shandle.engineOptions.wine.serverRtPrio = value;

  974.             break;

  975. #endif

  976. 

  977. #ifndef BUILD_BRIDGE

  978.         case CB::ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT:

  979. #ifdef CARLA_CAN_USE_LOG_THREAD

  980.             shandle.logThreadEnabled = (value != 0);

  981. #endif

  982.             break;

  983. #endif

  984. 

  985.         case CB::ENGINE_OPTION_CLIENT_NAME_PREFIX:

  986.             if (shandle.engineOptions.clientNamePrefix != nullptr)

  987.                 delete[] shandle.engineOptions.clientNamePrefix;

  988. 

  989.             shandle.engineOptions.clientNamePrefix = valueStr != nullptr && valueStr[0] != '\0'

  990.                                                    ? carla_strdup_safe(valueStr)

  991.                                                    : nullptr;

  992.             break;

  993. 

  994.         case CB::ENGINE_OPTION_PLUGINS_ARE_STANDALONE:

  995.             CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  996.             shandle.engineOptions.pluginsAreStandalone = (value != 0);

  997.             break;

  998.         }

  999.     }

  1000. 

  1001.     if (handle->engine != nullptr)

  1002.         handle->engine->setOption(option, value, valueStr);

  1003. }

  1004. 

  1005. void carla_set_file_callback(CarlaHostHandle handle, FileCallbackFunc func, void* ptr)

  1006. {

  1007.     carla_debug("carla_set_file_callback(%p, %p, %p)", handle, func, ptr);

  1008. 

  1009.     if (handle->isStandalone)

  1010.     {

  1011.         CarlaHostStandalone& shandle((CarlaHostStandalone&)*handle);

  1012. 

  1013.         shandle.fileCallback    = func;

  1014.         shandle.fileCallbackPtr = ptr;

  1015.     }

  1016. 

  1017.     if (handle->engine != nullptr)

  1018.         handle->engine->setFileCallback(func, ptr);

  1019. }

  1020. 

  1021. // --------------------------------------------------------------------------------------------------------------------

  1022. 

  1023. bool carla_load_file(CarlaHostHandle handle, const char* filename)

  1024. {

  1025.     CARLA_SAFE_ASSERT_RETURN(filename != nullptr && filename[0] != '\0', false);

  1026.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1027. 

  1028.     carla_debug("carla_load_file(%p, \"%s\")", handle, filename);

  1029. 

  1030.     return handle->engine->loadFile(filename);

  1031. }

  1032. 

  1033. bool carla_load_project(CarlaHostHandle handle, const char* filename)

  1034. {

  1035.     CARLA_SAFE_ASSERT_RETURN(filename != nullptr && filename[0] != '\0', false);

  1036.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1037. 

  1038.     carla_debug("carla_load_project(%p, \"%s\")", handle, filename);

  1039. 

  1040.     return handle->engine->loadProject(filename, true);

  1041. }

  1042. 

  1043. bool carla_save_project(CarlaHostHandle handle, const char* filename)

  1044. {

  1045.     CARLA_SAFE_ASSERT_RETURN(filename != nullptr && filename[0] != '\0', false);

  1046.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1047. 

  1048.     carla_debug("carla_save_project(%p, \"%s\")", handle, filename);

  1049. 

  1050.     return handle->engine->saveProject(filename, true);

  1051. }

  1052. 

  1053. #ifndef BUILD_BRIDGE

  1054. const char* carla_get_current_project_folder(CarlaHostHandle handle)

  1055. {

  1056.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, gNullCharPtr);

  1057. 

  1058.     carla_debug("carla_get_current_project_folder(%p)", handle);

  1059. 

  1060.     if (const char* const ret = handle->engine->getCurrentProjectFolder())

  1061.         return ret;

  1062. 

  1063.     return gNullCharPtr;

  1064. }

  1065. 

  1066. const char* carla_get_current_project_filename(CarlaHostHandle handle)

  1067. {

  1068.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->isStandalone, gNullCharPtr);

  1069. 

  1070.     carla_debug("carla_get_current_project_filename(%p)", handle);

  1071. 

  1072.     if (const char* const ret = handle->engine->getCurrentProjectFilename())

  1073.         return ret;

  1074. 

  1075.     return gNullCharPtr;

  1076. }

  1077. 

  1078. void carla_clear_project_filename(CarlaHostHandle handle)

  1079. {

  1080.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  1081. 

  1082.     carla_debug("carla_clear_project_filename(%p)", handle);

  1083. 

  1084.     handle->engine->clearCurrentProjectFilename();

  1085. }

  1086. 

  1087. // --------------------------------------------------------------------------------------------------------------------

  1088. 

  1089. bool carla_patchbay_connect(CarlaHostHandle handle, bool external, uint groupIdA, uint portIdA, uint groupIdB, uint portIdB)

  1090. {

  1091.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1092. 

  1093.     carla_debug("carla_patchbay_connect(%p, %s, %u, %u, %u, %u)",

  1094.                 handle, bool2str(external), groupIdA, portIdA, groupIdB, portIdB);

  1095. 

  1096.     return handle->engine->patchbayConnect(external, groupIdA, portIdA, groupIdB, portIdB);

  1097. }

  1098. 

  1099. bool carla_patchbay_disconnect(CarlaHostHandle handle, bool external, uint connectionId)

  1100. {

  1101.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1102. 

  1103.     carla_debug("carla_patchbay_disconnect(%p, %s, %i)", handle, bool2str(external), connectionId);

  1104. 

  1105.     return handle->engine->patchbayDisconnect(external, connectionId);

  1106. }

  1107. 

  1108. bool carla_patchbay_set_group_pos(CarlaHostHandle handle, bool external, uint groupId, int x1, int y1, int x2, int y2)

  1109. {

  1110.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr && handle->engine->isRunning(),

  1111.                                              "Engine is not running", false);

  1112. 

  1113.     carla_debug("carla_patchbay_set_group_pos(%p, %s, %u, %i, %i, %i, %i)",

  1114.                 handle, bool2str(external), groupId, x1, y1, x2, y2);

  1115. 

  1116.     if (handle->engine->isAboutToClose())

  1117.         return true;

  1118. 

  1119.     return handle->engine->patchbaySetGroupPos(false, true, external, groupId, x1, y1, x2, y2);

  1120. }

  1121. 

  1122. bool carla_patchbay_refresh(CarlaHostHandle handle, bool external)

  1123. {

  1124.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1125. 

  1126.     carla_debug("carla_patchbay_refresh(%p, %s)", handle, bool2str(external));

  1127. 

  1128.     return handle->engine->patchbayRefresh(true, false, external);

  1129. }

  1130. 

  1131. // --------------------------------------------------------------------------------------------------------------------

  1132. 

  1133. void carla_transport_play(CarlaHostHandle handle)

  1134. {

  1135.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->engine->isRunning(),);

  1136. 

  1137.     carla_debug("carla_transport_play(%p)", handle);

  1138. 

  1139.     handle->engine->transportPlay();

  1140. }

  1141. 

  1142. void carla_transport_pause(CarlaHostHandle handle)

  1143. {

  1144.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->engine->isRunning(),);

  1145. 

  1146.     carla_debug("carla_transport_pause(%p)", handle);

  1147. 

  1148.     handle->engine->transportPause();

  1149. }

  1150. 

  1151. void carla_transport_bpm(CarlaHostHandle handle, double bpm)

  1152. {

  1153.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->engine->isRunning(),);

  1154. 

  1155.     carla_debug("carla_transport_bpm(%p, %f)", handle, bpm);

  1156. 

  1157.     handle->engine->transportBPM(bpm);

  1158. }

  1159. 

  1160. void carla_transport_relocate(CarlaHostHandle handle, uint64_t frame)

  1161. {

  1162.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->engine->isRunning(),);

  1163. 

  1164.     carla_debug("carla_transport_relocate(%p, %i)", handle, frame);

  1165. 

  1166.     handle->engine->transportRelocate(frame);

  1167. }

  1168. 

  1169. uint64_t carla_get_current_transport_frame(CarlaHostHandle handle)

  1170. {

  1171.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->engine->isRunning(), 0);

  1172. 

  1173.     return handle->engine->getTimeInfo().frame;

  1174. }

  1175. 

  1176. const CarlaTransportInfo* carla_get_transport_info(CarlaHostHandle handle)

  1177. {

  1178.     static CarlaTransportInfo retTransInfo;

  1179.     retTransInfo.clear();

  1180. 

  1181.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->engine->isRunning(), &retTransInfo);

  1182. 

  1183.     const CB::EngineTimeInfo& timeInfo(handle->engine->getTimeInfo());

  1184. 

  1185.     retTransInfo.playing = timeInfo.playing;

  1186.     retTransInfo.frame   = timeInfo.frame;

  1187. 

  1188.     if (timeInfo.bbt.valid)

  1189.     {

  1190.         retTransInfo.bar  = timeInfo.bbt.bar;

  1191.         retTransInfo.beat = timeInfo.bbt.beat;

  1192.         retTransInfo.tick = static_cast<int32_t>(timeInfo.bbt.tick + 0.5);

  1193.         retTransInfo.bpm  = timeInfo.bbt.beatsPerMinute;

  1194.     }

  1195. 

  1196.     return &retTransInfo;

  1197. }

  1198. #endif

  1199. 

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

  1201. 

  1202. uint32_t carla_get_current_plugin_count(CarlaHostHandle handle)

  1203. {

  1204.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0);

  1205. 

  1206.     // too noisy!

  1207.     // carla_debug("carla_get_current_plugin_count(%p)", handle);

  1208. 

  1209.     return handle->engine->getCurrentPluginCount();

  1210. }

  1211. 

  1212. uint32_t carla_get_max_plugin_number(CarlaHostHandle handle)

  1213. {

  1214.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0);

  1215. 

  1216.     carla_debug("carla_get_max_plugin_number(%p)", handle);

  1217. 

  1218.     return handle->engine->getMaxPluginNumber();

  1219. }

  1220. 

  1221. // --------------------------------------------------------------------------------------------------------------------

  1222. 

  1223. bool carla_add_plugin(CarlaHostHandle handle,

  1224.                       BinaryType btype, PluginType ptype,

  1225.                       const char* filename, const char* name, const char* label, int64_t uniqueId,

  1226.                       const void* extraPtr, uint options)

  1227. {

  1228.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1229. 

  1230.     carla_debug("carla_add_plugin(%p, %i:%s, %i:%s, \"%s\", \"%s\", \"%s\", " P_INT64 ", %p, %u)",

  1231.                 handle,

  1232.                 btype, CB::BinaryType2Str(btype),

  1233.                 ptype, CB::PluginType2Str(ptype),

  1234.                 filename, name, label, uniqueId, extraPtr, options);

  1235. 

  1236.     return handle->engine->addPlugin(btype, ptype, filename, name, label, uniqueId, extraPtr, options);

  1237. }

  1238. 

  1239. bool carla_remove_plugin(CarlaHostHandle handle, uint pluginId)

  1240. {

  1241.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1242. 

  1243.     carla_debug("carla_remove_plugin(%p, %i)", handle, pluginId);

  1244. 

  1245.     return handle->engine->removePlugin(pluginId);

  1246. }

  1247. 

  1248. bool carla_remove_all_plugins(CarlaHostHandle handle)

  1249. {

  1250.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1251. 

  1252.     carla_debug("carla_remove_all_plugins(%p)", handle);

  1253. 

  1254.     return handle->engine->removeAllPlugins();

  1255. }

  1256. 

  1257. #ifndef BUILD_BRIDGE

  1258. bool carla_rename_plugin(CarlaHostHandle handle, uint pluginId, const char* newName)

  1259. {

  1260.     CARLA_SAFE_ASSERT_RETURN(newName != nullptr && newName[0] != '\0', false);

  1261.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1262. 

  1263.     carla_debug("carla_rename_plugin(%p, %i, \"%s\")", handle, pluginId, newName);

  1264. 

  1265.     return handle->engine->renamePlugin(pluginId, newName);

  1266. }

  1267. 

  1268. bool carla_clone_plugin(CarlaHostHandle handle, uint pluginId)

  1269. {

  1270.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1271. 

  1272.     carla_debug("carla_clone_plugin(%p, %i)", handle, pluginId);

  1273. 

  1274.     return handle->engine->clonePlugin(pluginId);

  1275. }

  1276. 

  1277. bool carla_replace_plugin(CarlaHostHandle handle, uint pluginId)

  1278. {

  1279.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1280. 

  1281.     carla_debug("carla_replace_plugin(%p, %i)", handle, pluginId);

  1282. 

  1283.     return handle->engine->replacePlugin(pluginId);

  1284. }

  1285. 

  1286. bool carla_switch_plugins(CarlaHostHandle handle, uint pluginIdA, uint pluginIdB)

  1287. {

  1288.     CARLA_SAFE_ASSERT_RETURN(pluginIdA != pluginIdB, false);

  1289.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1290. 

  1291.     carla_debug("carla_switch_plugins(%p, %i, %i)", handle, pluginIdA, pluginIdB);

  1292. 

  1293.     return handle->engine->switchPlugins(pluginIdA, pluginIdB);

  1294. }

  1295. #endif

  1296. 

  1297. // --------------------------------------------------------------------------------------------------------------------

  1298. 

  1299. bool carla_load_plugin_state(CarlaHostHandle handle, uint pluginId, const char* filename)

  1300. {

  1301.     CARLA_SAFE_ASSERT_RETURN(filename != nullptr && filename[0] != '\0', false);

  1302.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr

  1303.                                           && handle->engine->isRunning(), "Engine is not running", false);

  1304. 

  1305.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1306.         return plugin->loadStateFromFile(filename);

  1307. 

  1308.     return false;

  1309. }

  1310. 

  1311. bool carla_save_plugin_state(CarlaHostHandle handle, uint pluginId, const char* filename)

  1312. {

  1313.     CARLA_SAFE_ASSERT_RETURN(filename != nullptr && filename[0] != '\0', false);

  1314.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1315. 

  1316.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1317.         return plugin->saveStateToFile(filename);

  1318. 

  1319.     return false;

  1320. }

  1321. 

  1322. bool carla_export_plugin_lv2(CarlaHostHandle handle, uint pluginId, const char* lv2path)

  1323. {

  1324.     CARLA_SAFE_ASSERT_RETURN(lv2path != nullptr && lv2path[0] != '\0', false);

  1325.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1326. 

  1327.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1328.         return plugin->exportAsLV2(lv2path);

  1329. 

  1330.     return false;

  1331. }

  1332. 

  1333. // --------------------------------------------------------------------------------------------------------------------

  1334. 

  1335. const CarlaPluginInfo* carla_get_plugin_info(CarlaHostHandle handle, uint pluginId)

  1336. {

  1337.     static CarlaPluginInfo retInfo;

  1338. 

  1339.     // reset

  1340.     retInfo.type             = CB::PLUGIN_NONE;

  1341.     retInfo.category         = CB::PLUGIN_CATEGORY_NONE;

  1342.     retInfo.hints            = 0x0;

  1343.     retInfo.optionsAvailable = 0x0;

  1344.     retInfo.optionsEnabled   = 0x0;

  1345.     retInfo.filename         = gNullCharPtr;

  1346.     retInfo.name             = gNullCharPtr;

  1347.     retInfo.iconName         = gNullCharPtr;

  1348.     retInfo.uniqueId         = 0;

  1349. 

  1350.     // cleanup

  1351.     if (retInfo.label != gNullCharPtr)

  1352.     {

  1353.         delete[] retInfo.label;

  1354.         retInfo.label = gNullCharPtr;

  1355.     }

  1356. 

  1357.     if (retInfo.maker != gNullCharPtr)

  1358.     {

  1359.         delete[] retInfo.maker;

  1360.         retInfo.maker = gNullCharPtr;

  1361.     }

  1362. 

  1363.     if (retInfo.copyright != gNullCharPtr)

  1364.     {

  1365.         delete[] retInfo.copyright;

  1366.         retInfo.copyright = gNullCharPtr;

  1367.     }

  1368. 

  1369.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retInfo);

  1370. 

  1371.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1372.     {

  1373.         char strBuf[STR_MAX+1];

  1374.         carla_zeroChars(strBuf, STR_MAX+1);

  1375. 

  1376.         retInfo.type     = plugin->getType();

  1377.         retInfo.category = plugin->getCategory();

  1378.         retInfo.hints    = plugin->getHints();

  1379.         retInfo.filename = plugin->getFilename();

  1380.         retInfo.name     = plugin->getName();

  1381.         retInfo.iconName = plugin->getIconName();

  1382.         retInfo.uniqueId = plugin->getUniqueId();

  1383. 

  1384.         retInfo.optionsAvailable = plugin->getOptionsAvailable();

  1385.         retInfo.optionsEnabled   = plugin->getOptionsEnabled();

  1386. 

  1387.         if (plugin->getLabel(strBuf))

  1388.             retInfo.label = carla_strdup_safe(strBuf);

  1389.         if (plugin->getMaker(strBuf))

  1390.             retInfo.maker = carla_strdup_safe(strBuf);

  1391.         if (plugin->getCopyright(strBuf))

  1392.             retInfo.copyright = carla_strdup_safe(strBuf);

  1393. 

  1394.         checkStringPtr(retInfo.filename);

  1395.         checkStringPtr(retInfo.name);

  1396.         checkStringPtr(retInfo.iconName);

  1397.         checkStringPtr(retInfo.label);

  1398.         checkStringPtr(retInfo.maker);

  1399.         checkStringPtr(retInfo.copyright);

  1400.     }

  1401. 

  1402.     return &retInfo;

  1403. }

  1404. 

  1405. const CarlaPortCountInfo* carla_get_audio_port_count_info(CarlaHostHandle handle, uint pluginId)

  1406. {

  1407.     static CarlaPortCountInfo retInfo;

  1408.     carla_zeroStruct(retInfo);

  1409. 

  1410.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retInfo);

  1411. 

  1412.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1413.     {

  1414.         retInfo.ins   = plugin->getAudioInCount();

  1415.         retInfo.outs  = plugin->getAudioOutCount();

  1416.     }

  1417. 

  1418.     return &retInfo;

  1419. }

  1420. 

  1421. const CarlaPortCountInfo* carla_get_midi_port_count_info(CarlaHostHandle handle, uint pluginId)

  1422. {

  1423.     static CarlaPortCountInfo retInfo;

  1424.     carla_zeroStruct(retInfo);

  1425. 

  1426.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retInfo);

  1427. 

  1428.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1429.     {

  1430.         retInfo.ins   = plugin->getMidiInCount();

  1431.         retInfo.outs  = plugin->getMidiOutCount();

  1432.     }

  1433. 

  1434.     return &retInfo;

  1435. }

  1436. 

  1437. const CarlaPortCountInfo* carla_get_parameter_count_info(CarlaHostHandle handle, uint pluginId)

  1438. {

  1439.     static CarlaPortCountInfo retInfo;

  1440.     carla_zeroStruct(retInfo);

  1441. 

  1442.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retInfo);

  1443. 

  1444.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1445.         plugin->getParameterCountInfo(retInfo.ins, retInfo.outs);

  1446. 

  1447.     return &retInfo;

  1448. }

  1449. 

  1450. const CarlaParameterInfo* carla_get_parameter_info(CarlaHostHandle handle, uint pluginId, uint32_t parameterId)

  1451. {

  1452.     static CarlaParameterInfo retInfo;

  1453. 

  1454.     // reset

  1455.     retInfo.scalePointCount = 0;

  1456. 

  1457.     // cleanup

  1458.     if (retInfo.name != gNullCharPtr)

  1459.     {

  1460.         delete[] retInfo.name;

  1461.         retInfo.name = gNullCharPtr;

  1462.     }

  1463. 

  1464.     if (retInfo.symbol != gNullCharPtr)

  1465.     {

  1466.         delete[] retInfo.symbol;

  1467.         retInfo.symbol = gNullCharPtr;

  1468.     }

  1469. 

  1470.     if (retInfo.unit != gNullCharPtr)

  1471.     {

  1472.         delete[] retInfo.unit;

  1473.         retInfo.unit = gNullCharPtr;

  1474.     }

  1475. 

  1476.     if (retInfo.comment != gNullCharPtr)

  1477.     {

  1478.         delete[] retInfo.comment;

  1479.         retInfo.comment = gNullCharPtr;

  1480.     }

  1481. 

  1482.     if (retInfo.groupName != gNullCharPtr)

  1483.     {

  1484.         delete[] retInfo.groupName;

  1485.         retInfo.groupName = gNullCharPtr;

  1486.     }

  1487. 

  1488.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retInfo);

  1489. 

  1490.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1491.     {

  1492.         char strBuf[STR_MAX+1];

  1493.         carla_zeroChars(strBuf, STR_MAX+1);

  1494. 

  1495.         retInfo.scalePointCount = plugin->getParameterScalePointCount(parameterId);

  1496. 

  1497.         if (plugin->getParameterName(parameterId, strBuf))

  1498.         {

  1499.             retInfo.name = carla_strdup_safe(strBuf);

  1500.             carla_zeroChars(strBuf, STR_MAX+1);

  1501.         }

  1502. 

  1503.         if (plugin->getParameterSymbol(parameterId, strBuf))

  1504.         {

  1505.             retInfo.symbol = carla_strdup_safe(strBuf);

  1506.             carla_zeroChars(strBuf, STR_MAX+1);

  1507.         }

  1508. 

  1509.         if (plugin->getParameterUnit(parameterId, strBuf))

  1510.         {

  1511.             retInfo.unit = carla_strdup_safe(strBuf);

  1512.             carla_zeroChars(strBuf, STR_MAX+1);

  1513.         }

  1514. 

  1515.         if (plugin->getParameterComment(parameterId, strBuf))

  1516.         {

  1517.             retInfo.comment = carla_strdup_safe(strBuf);

  1518.             carla_zeroChars(strBuf, STR_MAX+1);

  1519.         }

  1520. 

  1521.         if (plugin->getParameterGroupName(parameterId, strBuf))

  1522.         {

  1523.             retInfo.groupName = carla_strdup_safe(strBuf);

  1524.             carla_zeroChars(strBuf, STR_MAX+1);

  1525.         }

  1526. 

  1527.         checkStringPtr(retInfo.name);

  1528.         checkStringPtr(retInfo.symbol);

  1529.         checkStringPtr(retInfo.unit);

  1530.         checkStringPtr(retInfo.comment);

  1531.         checkStringPtr(retInfo.groupName);

  1532.     }

  1533. 

  1534.     return &retInfo;

  1535. }

  1536. 

  1537. const CarlaScalePointInfo* carla_get_parameter_scalepoint_info(CarlaHostHandle handle,

  1538.                                                                uint pluginId,

  1539.                                                                uint32_t parameterId,

  1540.                                                                uint32_t scalePointId)

  1541. {

  1542.     CARLA_ASSERT(handle->engine != nullptr);

  1543. 

  1544.     static CarlaScalePointInfo retInfo;

  1545. 

  1546.     // reset

  1547.     retInfo.value = 0.0f;

  1548. 

  1549.     // cleanup

  1550.     if (retInfo.label != gNullCharPtr)

  1551.     {

  1552.         delete[] retInfo.label;

  1553.         retInfo.label = gNullCharPtr;

  1554.     }

  1555. 

  1556.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retInfo);

  1557. 

  1558.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1559.     {

  1560.         char strBuf[STR_MAX+1];

  1561. 

  1562.         retInfo.value = plugin->getParameterScalePointValue(parameterId, scalePointId);

  1563. 

  1564.         carla_zeroChars(strBuf, STR_MAX+1);

  1565.         if (plugin->getParameterScalePointLabel(parameterId, scalePointId, strBuf))

  1566.             retInfo.label = carla_strdup_safe(strBuf);

  1567. 

  1568.         checkStringPtr(retInfo.label);

  1569.     }

  1570. 

  1571.     return &retInfo;

  1572. }

  1573. 

  1574. // --------------------------------------------------------------------------------------------------------------------

  1575. 

  1576. uint carla_get_audio_port_hints(CarlaHostHandle handle, uint pluginId, bool isOutput, uint32_t portIndex)

  1577. {

  1578.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0x0);

  1579. 

  1580.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1581.     {

  1582.         CARLA_SAFE_ASSERT_RETURN(portIndex < (isOutput ? plugin->getAudioOutCount() : plugin->getAudioInCount()), 0x0);

  1583. 

  1584.         return plugin->getAudioPortHints(isOutput, portIndex);

  1585.     }

  1586. 

  1587.     return 0x0;

  1588. }

  1589. 

  1590. // --------------------------------------------------------------------------------------------------------------------

  1591. 

  1592. const ParameterData* carla_get_parameter_data(CarlaHostHandle handle, uint pluginId, uint32_t parameterId)

  1593. {

  1594.     static ParameterData retParamData;

  1595. 

  1596.     // reset

  1597.     retParamData.type        = CB::PARAMETER_UNKNOWN;

  1598.     retParamData.hints       = 0x0;

  1599.     retParamData.index       = CB::PARAMETER_NULL;

  1600.     retParamData.rindex      = -1;

  1601.     retParamData.midiChannel = 0;

  1602.     retParamData.mappedControlIndex = CB::CONTROL_INDEX_NONE;

  1603.     retParamData.mappedMinimum = 0.0f;

  1604.     retParamData.mappedMaximum = 0.0f;

  1605. 

  1606.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retParamData);

  1607. 

  1608.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1609.     {

  1610.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(), &retParamData);

  1611. 

  1612.         const ParameterData& pluginParamData(plugin->getParameterData(parameterId));

  1613.         retParamData.type        = pluginParamData.type;

  1614.         retParamData.hints       = pluginParamData.hints;

  1615.         retParamData.index       = pluginParamData.index;

  1616.         retParamData.rindex      = pluginParamData.rindex;

  1617.         retParamData.midiChannel = pluginParamData.midiChannel;

  1618.         retParamData.mappedControlIndex = pluginParamData.mappedControlIndex;

  1619.         retParamData.mappedMinimum = pluginParamData.mappedMinimum;

  1620.         retParamData.mappedMaximum = pluginParamData.mappedMaximum;

  1621.     }

  1622. 

  1623.     return &retParamData;

  1624. }

  1625. 

  1626. const ParameterRanges* carla_get_parameter_ranges(CarlaHostHandle handle, uint pluginId, uint32_t parameterId)

  1627. {

  1628.     static ParameterRanges retParamRanges;

  1629. 

  1630.     // reset

  1631.     retParamRanges.def       = 0.0f;

  1632.     retParamRanges.min       = 0.0f;

  1633.     retParamRanges.max       = 1.0f;

  1634.     retParamRanges.step      = 0.01f;

  1635.     retParamRanges.stepSmall = 0.0001f;

  1636.     retParamRanges.stepLarge = 0.1f;

  1637. 

  1638.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retParamRanges);

  1639. 

  1640.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1641.     {

  1642.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(), &retParamRanges);

  1643. 

  1644.         const ParameterRanges& pluginParamRanges(plugin->getParameterRanges(parameterId));

  1645.         retParamRanges.def       = pluginParamRanges.def;

  1646.         retParamRanges.min       = pluginParamRanges.min;

  1647.         retParamRanges.max       = pluginParamRanges.max;

  1648.         retParamRanges.step      = pluginParamRanges.step;

  1649.         retParamRanges.stepSmall = pluginParamRanges.stepSmall;

  1650.         retParamRanges.stepLarge = pluginParamRanges.stepLarge;

  1651.     }

  1652. 

  1653.     return &retParamRanges;

  1654. }

  1655. 

  1656. const MidiProgramData* carla_get_midi_program_data(CarlaHostHandle handle, uint pluginId, uint32_t midiProgramId)

  1657. {

  1658.     static MidiProgramData retMidiProgData = { 0, 0, gNullCharPtr };

  1659. 

  1660.     // reset

  1661.     retMidiProgData.bank    = 0;

  1662.     retMidiProgData.program = 0;

  1663. 

  1664.     if (retMidiProgData.name != gNullCharPtr)

  1665.     {

  1666.         delete[] retMidiProgData.name;

  1667.         retMidiProgData.name = gNullCharPtr;

  1668.     }

  1669. 

  1670.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retMidiProgData);

  1671. 

  1672.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1673.     {

  1674.         CARLA_SAFE_ASSERT_RETURN(midiProgramId < plugin->getMidiProgramCount(), &retMidiProgData);

  1675. 

  1676.         const MidiProgramData& pluginMidiProgData(plugin->getMidiProgramData(midiProgramId));

  1677.         retMidiProgData.bank    = pluginMidiProgData.bank;

  1678.         retMidiProgData.program = pluginMidiProgData.program;

  1679. 

  1680.         if (pluginMidiProgData.name != nullptr)

  1681.         {

  1682.             retMidiProgData.name = carla_strdup_safe(pluginMidiProgData.name);

  1683.             checkStringPtr(retMidiProgData.name);

  1684.         }

  1685.         else

  1686.         {

  1687.             retMidiProgData.name = gNullCharPtr;

  1688.         }

  1689.     }

  1690. 

  1691.     return &retMidiProgData;

  1692. }

  1693. 

  1694. const CustomData* carla_get_custom_data(CarlaHostHandle handle, uint pluginId, uint32_t customDataId)

  1695. {

  1696.     static CustomData retCustomData = { gNullCharPtr, gNullCharPtr, gNullCharPtr };

  1697. 

  1698.     // reset

  1699.     if (retCustomData.type != gNullCharPtr)

  1700.     {

  1701.         delete[] retCustomData.type;

  1702.         retCustomData.type = gNullCharPtr;

  1703.     }

  1704. 

  1705.     if (retCustomData.key != gNullCharPtr)

  1706.     {

  1707.         delete[] retCustomData.key;

  1708.         retCustomData.key = gNullCharPtr;

  1709.     }

  1710. 

  1711.     if (retCustomData.value != gNullCharPtr)

  1712.     {

  1713.         delete[] retCustomData.value;

  1714.         retCustomData.value = gNullCharPtr;

  1715.     }

  1716. 

  1717.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retCustomData);

  1718. 

  1719.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1720.     {

  1721.         CARLA_SAFE_ASSERT_RETURN(customDataId < plugin->getCustomDataCount(), &retCustomData)

  1722. 

  1723.         const CustomData& pluginCustomData(plugin->getCustomData(customDataId));

  1724.         retCustomData.type  = carla_strdup_safe(pluginCustomData.type);

  1725.         retCustomData.key   = carla_strdup_safe(pluginCustomData.key);

  1726.         retCustomData.value = carla_strdup_safe(pluginCustomData.value);

  1727.         checkStringPtr(retCustomData.type);

  1728.         checkStringPtr(retCustomData.key);

  1729.         checkStringPtr(retCustomData.value);

  1730.     }

  1731. 

  1732.     return &retCustomData;

  1733. }

  1734. 

  1735. const char* carla_get_custom_data_value(CarlaHostHandle handle, uint pluginId, const char* type, const char* key)

  1736. {

  1737.     CARLA_SAFE_ASSERT_RETURN(type != nullptr && type[0] != '\0', gNullCharPtr);

  1738.     CARLA_SAFE_ASSERT_RETURN(key != nullptr && key[0] != '\0', gNullCharPtr);

  1739.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, gNullCharPtr);

  1740. 

  1741.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1742.     {

  1743.         const uint32_t count = plugin->getCustomDataCount();

  1744. 

  1745.         if (count == 0)

  1746.             return gNullCharPtr;

  1747. 

  1748.         static CarlaString customDataValue;

  1749. 

  1750.         for (uint32_t i=0; i<count; ++i)

  1751.         {

  1752.             const CustomData& pluginCustomData(plugin->getCustomData(i));

  1753. 

  1754.             if (std::strcmp(pluginCustomData.type, type) != 0)

  1755.                 continue;

  1756.             if (std::strcmp(pluginCustomData.key, key) != 0)

  1757.                 continue;

  1758. 

  1759.             customDataValue = pluginCustomData.value;

  1760.             return customDataValue.buffer();

  1761.         }

  1762.     }

  1763. 

  1764.     return gNullCharPtr;

  1765. }

  1766. 

  1767. const char* carla_get_chunk_data(CarlaHostHandle handle, uint pluginId)

  1768. {

  1769.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, gNullCharPtr);

  1770. 

  1771.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1772.     {

  1773.         CARLA_SAFE_ASSERT_RETURN(plugin->getOptionsEnabled() & CB::PLUGIN_OPTION_USE_CHUNKS, gNullCharPtr);

  1774. 

  1775.         void* data = nullptr;

  1776.         const std::size_t dataSize(plugin->getChunkData(&data));

  1777.         CARLA_SAFE_ASSERT_RETURN(data != nullptr && dataSize > 0, gNullCharPtr);

  1778. 

  1779.         static CarlaString chunkData;

  1780. 

  1781.         chunkData = CarlaString::asBase64(data, static_cast<std::size_t>(dataSize));

  1782.         return chunkData.buffer();

  1783.     }

  1784. 

  1785.     return gNullCharPtr;

  1786. }

  1787. 

  1788. // --------------------------------------------------------------------------------------------------------------------

  1789. 

  1790. uint32_t carla_get_parameter_count(CarlaHostHandle handle, uint pluginId)

  1791. {

  1792.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0);

  1793. 

  1794.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1795.         return plugin->getParameterCount();

  1796. 

  1797.     return 0;

  1798. }

  1799. 

  1800. uint32_t carla_get_program_count(CarlaHostHandle handle, uint pluginId)

  1801. {

  1802.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0);

  1803. 

  1804.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1805.         return plugin->getProgramCount();

  1806. 

  1807.     return 0;

  1808. }

  1809. 

  1810. uint32_t carla_get_midi_program_count(CarlaHostHandle handle, uint pluginId)

  1811. {

  1812.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0);

  1813. 

  1814.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1815.         return plugin->getMidiProgramCount();

  1816. 

  1817.     return 0;

  1818. }

  1819. 

  1820. uint32_t carla_get_custom_data_count(CarlaHostHandle handle, uint pluginId)

  1821. {

  1822.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0);

  1823. 

  1824.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1825.         return plugin->getCustomDataCount();

  1826. 

  1827.     return 0;

  1828. }

  1829. 

  1830. // --------------------------------------------------------------------------------------------------------------------

  1831. 

  1832. const char* carla_get_parameter_text(CarlaHostHandle handle, uint pluginId, uint32_t parameterId)

  1833. {

  1834.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, gNullCharPtr);

  1835. 

  1836.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1837.     {

  1838.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(), gNullCharPtr);

  1839. 

  1840.         static char textBuf[STR_MAX+1];

  1841.         carla_zeroChars(textBuf, STR_MAX+1);

  1842. 

  1843.         if (! plugin->getParameterText(parameterId, textBuf))

  1844.             textBuf[0] = '\0';

  1845. 

  1846.         return textBuf;

  1847.     }

  1848. 

  1849.     return gNullCharPtr;

  1850. }

  1851. 

  1852. const char* carla_get_program_name(CarlaHostHandle handle, uint pluginId, uint32_t programId)

  1853. {

  1854.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, nullptr);

  1855. 

  1856.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1857.     {

  1858.         CARLA_SAFE_ASSERT_RETURN(programId < plugin->getProgramCount(), gNullCharPtr);

  1859. 

  1860.         static char programName[STR_MAX+1];

  1861.         carla_zeroChars(programName, STR_MAX+1);

  1862. 

  1863.         if (! plugin->getProgramName(programId, programName))

  1864.             programName[0] = '\0';

  1865. 

  1866.         return programName;

  1867.     }

  1868. 

  1869.     return gNullCharPtr;

  1870. }

  1871. 

  1872. const char* carla_get_midi_program_name(CarlaHostHandle handle, uint pluginId, uint32_t midiProgramId)

  1873. {

  1874.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, gNullCharPtr);

  1875. 

  1876.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1877.     {

  1878.         CARLA_SAFE_ASSERT_RETURN(midiProgramId < plugin->getMidiProgramCount(), gNullCharPtr);

  1879. 

  1880.         static char midiProgramName[STR_MAX+1];

  1881.         carla_zeroChars(midiProgramName, STR_MAX+1);

  1882. 

  1883.         if (! plugin->getMidiProgramName(midiProgramId, midiProgramName))

  1884.             midiProgramName[0] = '\0';

  1885. 

  1886.         return midiProgramName;

  1887.     }

  1888. 

  1889.     return gNullCharPtr;

  1890. }

  1891. 

  1892. const char* carla_get_real_plugin_name(CarlaHostHandle handle, uint pluginId)

  1893. {

  1894.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, gNullCharPtr);

  1895. 

  1896.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1897.     {

  1898.         static char realPluginName[STR_MAX+1];

  1899.         carla_zeroChars(realPluginName, STR_MAX+1);

  1900. 

  1901.         if (! plugin->getRealName(realPluginName))

  1902.             realPluginName[0] = '\0';

  1903. 

  1904.         return realPluginName;

  1905.     }

  1906. 

  1907.     return gNullCharPtr;

  1908. }

  1909. 

  1910. // --------------------------------------------------------------------------------------------------------------------

  1911. 

  1912. int32_t carla_get_current_program_index(CarlaHostHandle handle, uint pluginId)

  1913. {

  1914.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, -1);

  1915. 

  1916.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1917.         return plugin->getCurrentProgram();

  1918. 

  1919.     return -1;

  1920. }

  1921. 

  1922. int32_t carla_get_current_midi_program_index(CarlaHostHandle handle, uint pluginId)

  1923. {

  1924.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, -1);

  1925. 

  1926.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1927.         return plugin->getCurrentMidiProgram();

  1928. 

  1929.     return -1;

  1930. }

  1931. 

  1932. // --------------------------------------------------------------------------------------------------------------------

  1933. 

  1934. float carla_get_default_parameter_value(CarlaHostHandle handle, uint pluginId, uint32_t parameterId)

  1935. {

  1936.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0.0f);

  1937. 

  1938.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1939.     {

  1940.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(), 0.0f);

  1941. 

  1942.         return plugin->getParameterRanges(parameterId).def;

  1943.     }

  1944. 

  1945.     return 0.0f;

  1946. }

  1947. 

  1948. float carla_get_current_parameter_value(CarlaHostHandle handle, uint pluginId, uint32_t parameterId)

  1949. {

  1950.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0.0f);

  1951. 

  1952.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1953.     {

  1954.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(), 0.0f);

  1955. 

  1956.         return plugin->getParameterValue(parameterId);

  1957.     }

  1958. 

  1959.     return 0.0f;

  1960. }

  1961. 

  1962. float carla_get_internal_parameter_value(CarlaHostHandle handle, uint pluginId, int32_t parameterId)

  1963. {

  1964. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  1965.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, (parameterId == CB::PARAMETER_CTRL_CHANNEL) ? -1.0f : 0.0f);

  1966. #else

  1967.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0.0f);

  1968. #endif

  1969.     CARLA_SAFE_ASSERT_RETURN(parameterId != CB::PARAMETER_NULL && parameterId > CB::PARAMETER_MAX, 0.0f);

  1970. 

  1971.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1972.         return plugin->getInternalParameterValue(parameterId);

  1973. 

  1974.     return 0.0f;

  1975. }

  1976. 

  1977. // --------------------------------------------------------------------------------------------------------------------

  1978. 

  1979. uint32_t carla_get_plugin_latency(CarlaHostHandle handle, uint pluginId)

  1980. {

  1981.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0);

  1982. 

  1983.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1984.          return plugin->getLatencyInFrames();

  1985. 

  1986.     return 0;

  1987. }

  1988. 

  1989. // --------------------------------------------------------------------------------------------------------------------

  1990. 

  1991. const float* carla_get_peak_values(CarlaHostHandle handle, uint pluginId)

  1992. {

  1993.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, nullptr);

  1994. 

  1995.     return handle->engine->getPeaks(pluginId);

  1996. }

  1997. 

  1998. float carla_get_input_peak_value(CarlaHostHandle handle, uint pluginId, bool isLeft)

  1999. {

  2000.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0.0f);

  2001. 

  2002.     return handle->engine->getInputPeak(pluginId, isLeft);

  2003. }

  2004. 

  2005. float carla_get_output_peak_value(CarlaHostHandle handle, uint pluginId, bool isLeft)

  2006. {

  2007.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0.0f);

  2008. 

  2009.     return handle->engine->getOutputPeak(pluginId, isLeft);

  2010. }

  2011. 

  2012. // --------------------------------------------------------------------------------------------------------------------

  2013. 

  2014. CARLA_BACKEND_START_NAMESPACE

  2015. 

  2016. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  2017. // defined in CarlaPluginInternal.cpp

  2018. const void* carla_render_inline_display_internal(const CarlaPluginPtr& plugin, uint32_t width, uint32_t height);

  2019. #endif

  2020. 

  2021. // defined in CarlaPluginLV2.cpp

  2022. const void* carla_render_inline_display_lv2(const CarlaPluginPtr& plugin, uint32_t width, uint32_t height);

  2023. 

  2024. CARLA_BACKEND_END_NAMESPACE

  2025. 

  2026. const CarlaInlineDisplayImageSurface* carla_render_inline_display(CarlaHostHandle handle,

  2027.                                                                   uint pluginId,

  2028.                                                                   uint32_t width, uint32_t height)

  2029. {

  2030.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->engine->isRunning(), nullptr);

  2031. 

  2032.     if (handle->engine->isAboutToClose())

  2033.         return nullptr;

  2034. 

  2035.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2036.     {

  2037.         switch (plugin->getType())

  2038.         {

  2039. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  2040.         case CB::PLUGIN_INTERNAL:

  2041.             return (const CarlaInlineDisplayImageSurface*)CB::carla_render_inline_display_internal(plugin, width, height);

  2042. #endif

  2043.         case CB::PLUGIN_LV2:

  2044.             return (const CarlaInlineDisplayImageSurface*)CB::carla_render_inline_display_lv2(plugin, width, height);

  2045.         default:

  2046.             return nullptr;

  2047.         }

  2048.     }

  2049. 

  2050.     return nullptr;

  2051. }

  2052. 

  2053. // --------------------------------------------------------------------------------------------------------------------

  2054. 

  2055. void carla_set_active(CarlaHostHandle handle, uint pluginId, bool onOff)

  2056. {

  2057.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2058. 

  2059.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2060.         plugin->setActive(onOff, true, false);

  2061. }

  2062. 

  2063. #ifndef BUILD_BRIDGE

  2064. void carla_set_drywet(CarlaHostHandle handle, uint pluginId, float value)

  2065. {

  2066.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2067. 

  2068.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2069.         plugin->setDryWet(value, true, false);

  2070. }

  2071. 

  2072. void carla_set_volume(CarlaHostHandle handle, uint pluginId, float value)

  2073. {

  2074.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2075. 

  2076.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2077.         plugin->setVolume(value, true, false);

  2078. }

  2079. 

  2080. void carla_set_balance_left(CarlaHostHandle handle, uint pluginId, float value)

  2081. {

  2082.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2083. 

  2084.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2085.         plugin->setBalanceLeft(value, true, false);

  2086. }

  2087. 

  2088. void carla_set_balance_right(CarlaHostHandle handle, uint pluginId, float value)

  2089. {

  2090.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2091. 

  2092.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2093.         plugin->setBalanceRight(value, true, false);

  2094. }

  2095. 

  2096. void carla_set_panning(CarlaHostHandle handle, uint pluginId, float value)

  2097. {

  2098.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2099. 

  2100.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2101.         plugin->setPanning(value, true, false);

  2102. }

  2103. 

  2104. void carla_set_ctrl_channel(CarlaHostHandle handle, uint pluginId, int8_t channel)

  2105. {

  2106.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2107.     CARLA_SAFE_ASSERT_RETURN(channel >= -1 && channel < MAX_MIDI_CHANNELS,);

  2108. 

  2109.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2110.         plugin->setCtrlChannel(channel, true, false);

  2111. }

  2112. #endif

  2113. 

  2114. void carla_set_option(CarlaHostHandle handle, uint pluginId, uint option, bool yesNo)

  2115. {

  2116.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2117. 

  2118.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2119.         plugin->setOption(option, yesNo, false);

  2120. }

  2121. 

  2122. // --------------------------------------------------------------------------------------------------------------------

  2123. 

  2124. void carla_set_parameter_value(CarlaHostHandle handle, uint pluginId, uint32_t parameterId, float value)

  2125. {

  2126.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2127. 

  2128.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2129.     {

  2130.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(),);

  2131. 

  2132.         plugin->setParameterValue(parameterId, value, true, true, false);

  2133.     }

  2134. }

  2135. 

  2136. #ifndef BUILD_BRIDGE

  2137. 

  2138. void carla_set_parameter_midi_channel(CarlaHostHandle handle, uint pluginId, uint32_t parameterId, uint8_t channel)

  2139. {

  2140.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2141.     CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  2142. 

  2143.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2144.     {

  2145.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(),);

  2146. 

  2147.         plugin->setParameterMidiChannel(parameterId, channel, true, false);

  2148.     }

  2149. }

  2150. 

  2151. void carla_set_parameter_mapped_control_index(CarlaHostHandle handle, uint pluginId, uint32_t parameterId, int16_t index)

  2152. {

  2153.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2154.     CARLA_SAFE_ASSERT_RETURN(index >= CB::CONTROL_INDEX_NONE && index <= CB::CONTROL_INDEX_MAX_ALLOWED,);

  2155. 

  2156.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2157.     {

  2158.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(),);

  2159. 

  2160.         plugin->setParameterMappedControlIndex(parameterId, index, true, false, true);

  2161.     }

  2162. }

  2163. 

  2164. void carla_set_parameter_mapped_range(CarlaHostHandle handle, uint pluginId, uint32_t parameterId, float minimum, float maximum)

  2165. {

  2166.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2167. 

  2168.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2169.     {

  2170.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(),);

  2171. 

  2172.         plugin->setParameterMappedRange(parameterId, minimum, maximum, true, false);

  2173.     }

  2174. }

  2175. 

  2176. void carla_set_parameter_touch(CarlaHostHandle handle, uint pluginId, uint32_t parameterId, bool touch)

  2177. {

  2178.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2179. 

  2180.     carla_debug("carla_set_parameter_touch(%p, %i, %i, %s)", handle, pluginId, parameterId, bool2str(touch));

  2181.     return handle->engine->touchPluginParameter(pluginId, parameterId, touch);

  2182. }

  2183. #endif

  2184. 

  2185. // --------------------------------------------------------------------------------------------------------------------

  2186. 

  2187. void carla_set_program(CarlaHostHandle handle, uint pluginId, uint32_t programId)

  2188. {

  2189.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2190. 

  2191.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2192.     {

  2193.         CARLA_SAFE_ASSERT_RETURN(programId < plugin->getProgramCount(),);

  2194. 

  2195.         plugin->setProgram(static_cast<int32_t>(programId), true, true, false);

  2196.     }

  2197. }

  2198. 

  2199. void carla_set_midi_program(CarlaHostHandle handle, uint pluginId, uint32_t midiProgramId)

  2200. {

  2201.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2202. 

  2203.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2204.     {

  2205.         CARLA_SAFE_ASSERT_RETURN(midiProgramId < plugin->getMidiProgramCount(),);

  2206. 

  2207.         plugin->setMidiProgram(static_cast<int32_t>(midiProgramId), true, true, false);

  2208.     }

  2209. }

  2210. 

  2211. // --------------------------------------------------------------------------------------------------------------------

  2212. 

  2213. void carla_set_custom_data(CarlaHostHandle handle, uint pluginId, const char* type, const char* key, const char* value)

  2214. {

  2215.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2216.     CARLA_SAFE_ASSERT_RETURN(type != nullptr && type[0] != '\0',);

  2217.     CARLA_SAFE_ASSERT_RETURN(key != nullptr && key[0] != '\0',);

  2218.     CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

  2219. 

  2220.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2221.         plugin->setCustomData(type, key, value, true);

  2222. }

  2223. 

  2224. void carla_set_chunk_data(CarlaHostHandle handle, uint pluginId, const char* chunkData)

  2225. {

  2226.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2227.     CARLA_SAFE_ASSERT_RETURN(chunkData != nullptr && chunkData[0] != '\0',);

  2228. 

  2229.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2230.     {

  2231.         CARLA_SAFE_ASSERT_RETURN(plugin->getOptionsEnabled() & CB::PLUGIN_OPTION_USE_CHUNKS,);

  2232. 

  2233.         std::vector<uint8_t> chunk(carla_getChunkFromBase64String(chunkData));

  2234. #ifdef CARLA_PROPER_CPP11_SUPPORT

  2235.         plugin->setChunkData(chunk.data(), chunk.size());

  2236. #else

  2237.         plugin->setChunkData(&chunk.front(), chunk.size());

  2238. #endif

  2239.     }

  2240. }

  2241. 

  2242. // --------------------------------------------------------------------------------------------------------------------

  2243. 

  2244. void carla_prepare_for_save(CarlaHostHandle handle, uint pluginId)

  2245. {

  2246.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2247. 

  2248.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2249.         plugin->prepareForSave(false);

  2250. }

  2251. 

  2252. void carla_reset_parameters(CarlaHostHandle handle, uint pluginId)

  2253. {

  2254.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2255. 

  2256.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2257.         plugin->resetParameters();

  2258. }

  2259. 

  2260. void carla_randomize_parameters(CarlaHostHandle handle, uint pluginId)

  2261. {

  2262.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2263. 

  2264.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2265.         plugin->randomizeParameters();

  2266. }

  2267. 

  2268. #ifndef BUILD_BRIDGE

  2269. void carla_send_midi_note(CarlaHostHandle handle, uint pluginId, uint8_t channel, uint8_t note, uint8_t velocity)

  2270. {

  2271.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->engine->isRunning(),);

  2272. 

  2273.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2274.         plugin->sendMidiSingleNote(channel, note, velocity, true, true, false);

  2275. }

  2276. #endif

  2277. 

  2278. void carla_set_custom_ui_title(CarlaHostHandle handle, uint pluginId, const char* title)

  2279. {

  2280.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2281.     CARLA_SAFE_ASSERT_RETURN(title != nullptr,);

  2282. 

  2283.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2284.         plugin->setCustomUITitle(title);

  2285. }

  2286. 

  2287. void carla_show_custom_ui(CarlaHostHandle handle, uint pluginId, bool yesNo)

  2288. {

  2289.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2290. 

  2291.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2292.         plugin->showCustomUI(yesNo);

  2293. }

  2294. 

  2295. void* carla_embed_custom_ui(CarlaHostHandle handle, uint pluginId, void* ptr)

  2296. {

  2297.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, nullptr);

  2298. 

  2299.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2300.         return plugin->embedCustomUI(ptr);

  2301. 

  2302.     return nullptr;

  2303. }

  2304. 

  2305. // --------------------------------------------------------------------------------------------------------------------

  2306. 

  2307. uint32_t carla_get_buffer_size(CarlaHostHandle handle)

  2308. {

  2309.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0);

  2310. 

  2311.     carla_debug("carla_get_buffer_size(%p)", handle);

  2312.     return handle->engine->getBufferSize();

  2313. }

  2314. 

  2315. double carla_get_sample_rate(CarlaHostHandle handle)

  2316. {

  2317.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0.0);

  2318. 

  2319.     carla_debug("carla_get_sample_rate(%p)", handle);

  2320.     return handle->engine->getSampleRate();

  2321. }

  2322. 

  2323. // --------------------------------------------------------------------------------------------------------------------

  2324. 

  2325. const char* carla_get_last_error(CarlaHostHandle handle)

  2326. {

  2327.     carla_debug("carla_get_last_error(%p)", handle);

  2328. 

  2329.     if (handle->engine != nullptr)

  2330.         return handle->engine->getLastError();

  2331. 

  2332.     return handle->isStandalone

  2333.            ? ((CarlaHostStandalone*)handle)->lastError.buffer()

  2334.            : gNullCharPtr;

  2335. }

  2336. 

  2337. const char* carla_get_host_osc_url_tcp(CarlaHostHandle handle)

  2338. {

  2339.     carla_debug("carla_get_host_osc_url_tcp(%p)", handle);

  2340. 

  2341. #if defined(HAVE_LIBLO) && !defined(BUILD_BRIDGE)

  2342.     if (handle->engine == nullptr)

  2343.     {

  2344.         carla_stderr2("carla_get_host_osc_url_tcp() failed, engine is not running");

  2345.         if (handle->isStandalone)

  2346.             ((CarlaHostStandalone*)handle)->lastError = "Engine is not running";

  2347.         return gNullCharPtr;

  2348.     }

  2349. 

  2350.     const char* const path = handle->engine->getOscServerPathTCP();

  2351. 

  2352.     if (path != nullptr && path[0] != '\0')

  2353.         return path;

  2354. 

  2355.     static const char* const notAvailable = "(OSC TCP port not available)";

  2356.     return notAvailable;

  2357. #else

  2358.     return "(OSC support not available in this build)";

  2359. 

  2360.     // unused

  2361.     (void)handle;

  2362. #endif

  2363. }

  2364. 

  2365. const char* carla_get_host_osc_url_udp(CarlaHostHandle handle)

  2366. {

  2367.     carla_debug("carla_get_host_osc_url_udp(%p)", handle);

  2368. 

  2369. #if defined(HAVE_LIBLO) && !defined(BUILD_BRIDGE)

  2370.     if (handle->engine == nullptr)

  2371.     {

  2372.         carla_stderr2("carla_get_host_osc_url_udp() failed, engine is not running");

  2373.         if (handle->isStandalone)

  2374.             ((CarlaHostStandalone*)handle)->lastError = "Engine is not running";

  2375.         return gNullCharPtr;

  2376.     }

  2377. 

  2378.     const char* const path = handle->engine->getOscServerPathUDP();

  2379. 

  2380.     if (path != nullptr && path[0] != '\0')

  2381.         return path;

  2382. 

  2383.     static const char* const notAvailable = "(OSC UDP port not available)";

  2384.     return notAvailable;

  2385. #else

  2386.     return "(OSC support not available in this build)";

  2387. 

  2388.     // unused

  2389.     (void)handle;

  2390. #endif

  2391. }

  2392. 

  2393. // --------------------------------------------------------------------------------------------------------------------

  2394. 

  2395. #ifndef CARLA_PLUGIN_BUILD

  2396. # define CARLA_PLUGIN_UI_CLASS_PREFIX Standalone

  2397. # include "CarlaPluginUI.cpp"

  2398. # undef CARLA_PLUGIN_UI_CLASS_PREFIX

  2399. # include "CarlaDssiUtils.cpp"

  2400. # include "CarlaMacUtils.cpp"

  2401. # include "CarlaPatchbayUtils.cpp"

  2402. # include "CarlaPipeUtils.cpp"

  2403. # include "CarlaProcessUtils.cpp"

  2404. # include "CarlaStateUtils.cpp"

  2405. # include "utils/Information.cpp"

  2406. # include "utils/Windows.cpp"

  2407. #endif /* CARLA_PLUGIN_BUILD */

  2408. 

  2409. // --------------------------------------------------------------------------------------------------------------------