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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) 2011-2020 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. #ifndef BUILD_BRIDGE

  31. # include "CarlaLogThread.hpp"

  32. #endif

  33. 

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

  35. 

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

  37.     if (! (cond)) {                                              \

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

  39.         if (handle->isStandalone)                                \

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

  41.         return ret;                                              \

  42.     }

  43. 

  44. // --------------------------------------------------------------------------------------------------------------------

  45. 

  46. #ifdef USING_JUCE

  47. static void carla_standalone_juce_init(void);

  48. static void carla_standalone_juce_idle(void);

  49. static void carla_standalone_juce_cleanup(void);

  50. # define carla_juce_init carla_standalone_juce_init

  51. # define carla_juce_idle carla_standalone_juce_idle

  52. # define carla_juce_cleanup carla_standalone_juce_cleanup

  53. # include "utils/JUCE.cpp"

  54. # undef carla_juce_init

  55. # undef carla_juce_idle

  56. # undef carla_juce_cleanup

  57. #endif

  58. 

  59. // -------------------------------------------------------------------------------------------------------------------

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

  61. 

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

  63. 

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

  65. {

  66.     if (charPtr == nullptr)

  67.         charPtr = gNullCharPtr;

  68. }

  69. 

  70. // -------------------------------------------------------------------------------------------------------------------

  71. // Constructors

  72. 

  73. _CarlaPluginInfo::_CarlaPluginInfo() noexcept

  74.     : type(CB::PLUGIN_NONE),

  75.       category(CB::PLUGIN_CATEGORY_NONE),

  76.       hints(0x0),

  77.       optionsAvailable(0x0),

  78.       optionsEnabled(0x0),

  79.       filename(gNullCharPtr),

  80.       name(gNullCharPtr),

  81.       label(gNullCharPtr),

  82.       maker(gNullCharPtr),

  83.       copyright(gNullCharPtr),

  84.       iconName(gNullCharPtr),

  85.       uniqueId(0) {}

  86. 

  87. _CarlaPluginInfo::~_CarlaPluginInfo() noexcept

  88. {

  89.     if (label != gNullCharPtr)

  90.         delete[] label;

  91.     if (maker != gNullCharPtr)

  92.         delete[] maker;

  93.     if (copyright != gNullCharPtr)

  94.         delete[] copyright;

  95. }

  96. 

  97. _CarlaParameterInfo::_CarlaParameterInfo() noexcept

  98.     : name(gNullCharPtr),

  99.       symbol(gNullCharPtr),

  100.       unit(gNullCharPtr),

  101.       comment(gNullCharPtr),

  102.       groupName(gNullCharPtr),

  103.       scalePointCount(0) {}

  104. 

  105. _CarlaParameterInfo::~_CarlaParameterInfo() noexcept

  106. {

  107.     if (name != gNullCharPtr)

  108.         delete[] name;

  109.     if (symbol != gNullCharPtr)

  110.         delete[] symbol;

  111.     if (unit != gNullCharPtr)

  112.         delete[] unit;

  113.     if (comment != gNullCharPtr)

  114.         delete[] comment;

  115.     if (groupName != gNullCharPtr)

  116.         delete[] groupName;

  117. }

  118. 

  119. _CarlaScalePointInfo::_CarlaScalePointInfo() noexcept

  120.     : value(0.0f),

  121.       label(gNullCharPtr) {}

  122. 

  123. _CarlaScalePointInfo::~_CarlaScalePointInfo() noexcept

  124. {

  125.     if (label != gNullCharPtr)

  126.         delete[] label;

  127. }

  128. 

  129. _CarlaTransportInfo::_CarlaTransportInfo() noexcept

  130.     : playing(false),

  131.       frame(0),

  132.       bar(0),

  133.       beat(0),

  134.       tick(0),

  135.       bpm(0.0) {}

  136. 

  137. void _CarlaTransportInfo::clear() noexcept

  138. {

  139.     playing = false;

  140.     frame = 0;

  141.     bar = 0;

  142.     beat = 0;

  143.     tick = 0;

  144.     bpm = 0.0;

  145. }

  146. 

  147. // --------------------------------------------------------------------------------------------------------------------

  148. 

  149. using CarlaBackend::CarlaPluginPtr;

  150. 

  151. // --------------------------------------------------------------------------------------------------------------------

  152. 

  153. uint carla_get_engine_driver_count()

  154. {

  155.     carla_debug("carla_get_engine_driver_count()");

  156. 

  157.     return CarlaEngine::getDriverCount();

  158. }

  159. 

  160. const char* carla_get_engine_driver_name(uint index)

  161. {

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

  163. 

  164.     return CarlaEngine::getDriverName(index);

  165. }

  166. 

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

  168. {

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

  170. 

  171.     return CarlaEngine::getDriverDeviceNames(index);

  172. }

  173. 

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

  175. {

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

  177. 

  178.     static EngineDriverDeviceInfo retDevInfo;

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

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

  181. 

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

  183. 

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

  185.     {

  186.         retDevInfo.hints       =  devInfo->hints;

  187.         retDevInfo.bufferSizes = (devInfo->bufferSizes != nullptr) ? devInfo->bufferSizes : nullBufferSizes;

  188.         retDevInfo.sampleRates = (devInfo->sampleRates != nullptr) ? devInfo->sampleRates : nullSampleRates;

  189.     }

  190.     else

  191.     {

  192.         retDevInfo.hints       = 0x0;

  193.         retDevInfo.bufferSizes = nullBufferSizes;

  194.         retDevInfo.sampleRates = nullSampleRates;

  195.     }

  196. 

  197.     return &retDevInfo;

  198. }

  199. 

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

  201. {

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

  203. }

  204. 

  205. // --------------------------------------------------------------------------------------------------------------------

  206. 

  207. CarlaHostHandle carla_standalone_host_init(void)

  208. {

  209. #ifdef CARLA_OS_UNIX

  210.     static const ThreadSafeFFTW sThreadSafeFFTW;

  211. #endif

  212. 

  213.     static CarlaHostStandalone gStandalone;

  214. 

  215.     return &gStandalone;

  216. }

  217. 

  218. CarlaEngine* carla_get_engine_from_handle(CarlaHostHandle handle)

  219. {

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

  221. 

  222.     return handle->engine;

  223. }

  224. 

  225. // --------------------------------------------------------------------------------------------------------------------

  226. 

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

  228. {

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

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

  231. 

  232.     using water::File;

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

  234. 

  235. #ifdef BUILD_BRIDGE

  236.     /*

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

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

  239. 

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

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

  242. 

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

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

  245.     */

  246. 

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

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

  249. 

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

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

  252. 

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

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

  255. 

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

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

  258. 

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

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

  261. 

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

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

  264. 

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

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

  267. 

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

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

  270. 

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

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

  273. 

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

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

  276. 

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

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

  279. 

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

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

  282. 

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

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

  285. 

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

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

  288.     else

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

  290. 

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

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

  293.     else

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

  295. 

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

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

  298. 

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

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

  301. #else

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

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

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

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

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

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

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

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

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

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

  312. 

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

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

  315. 

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

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

  318. 

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

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

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

  322. 

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

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

  325. 

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

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

  328. 

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

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

  331. 

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

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

  334. 

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

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

  337. 

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

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

  340. 

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

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

  343. 

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

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

  346. 

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

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

  349. 

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

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

  352.     else

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

  354. 

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

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

  357. 

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

  359. 

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

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

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

  363. 

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

  365.     {

  366.         char strBuf[STR_MAX+1];

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

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

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

  370.     }

  371.     else

  372.     {

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

  374.     }

  375. 

  376. # ifndef CARLA_OS_WIN

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

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

  379. 

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

  381. 

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

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

  384. 

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

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

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

  388. # endif

  389. 

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

  391. #endif // BUILD_BRIDGE

  392. }

  393. 

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

  395. {

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

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

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

  399. 

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

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

  402. 

  403. #ifdef CARLA_OS_WIN

  404.     carla_setenv("WINEASIO_CLIENT_NAME", clientName);

  405. #endif

  406. 

  407. #ifdef USING_JUCE

  408.     carla_standalone_juce_init();

  409. #endif

  410. 

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

  412. 

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

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

  415. 

  416.     shandle.engine = engine;

  417. 

  418. #ifdef BUILD_BRIDGE

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

  420.     {

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

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

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

  424. 

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

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

  427.     }

  428.     else

  429.     {

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

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

  432.     }

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

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

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

  436. #else

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

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

  439. #endif

  440. 

  441.     carla_engine_init_common(shandle, engine);

  442. 

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

  444.     {

  445. #ifndef BUILD_BRIDGE

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

  447.             shandle.logThread.init();

  448. #endif

  449.         shandle.lastError = "No error";

  450.         return true;

  451.     }

  452.     else

  453.     {

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

  455.         shandle.engine = nullptr;

  456.         delete engine;

  457. #ifdef USING_JUCE

  458.         carla_standalone_juce_cleanup();

  459. #endif

  460.         return false;

  461.     }

  462. }

  463. 

  464. #ifdef BUILD_BRIDGE

  465. bool carla_engine_init_bridge(CarlaHostHandle handle,

  466.                               const char audioBaseName[6+1],

  467.                               const char rtClientBaseName[6+1],

  468.                               const char nonRtClientBaseName[6+1],

  469.                               const char nonRtServerBaseName[6+1],

  470.                               const char* const clientName)

  471. {

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

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

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

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

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

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

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

  479. 

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

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

  482. 

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

  484.                                                                      rtClientBaseName,

  485.                                                                      nonRtClientBaseName,

  486.                                                                      nonRtServerBaseName));

  487. 

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

  489. 

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

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

  492. 

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

  494. 

  495.     carla_engine_init_common(shandle, engine);

  496. 

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

  498.     {

  499.         shandle.lastError = "No error";

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

  501.         return true;

  502.     }

  503.     else

  504.     {

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

  506.         return false;

  507.     }

  508. }

  509. #endif

  510. 

  511. bool carla_engine_close(CarlaHostHandle handle)

  512. {

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

  514. 

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

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

  517. 

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

  519. 

  520.     CarlaEngine* const engine = shandle.engine;

  521. 

  522.     engine->setAboutToClose();

  523.     engine->removeAllPlugins();

  524. 

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

  526. 

  527.     if (! closed)

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

  529. 

  530. #ifndef BUILD_BRIDGE

  531.     shandle.logThread.stop();

  532. #endif

  533. 

  534.     shandle.engine = nullptr;

  535.     delete engine;

  536. 

  537. #ifdef USING_JUCE

  538.     carla_standalone_juce_cleanup();

  539. #endif

  540.     return closed;

  541. }

  542. 

  543. void carla_engine_idle(CarlaHostHandle handle)

  544. {

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

  546. 

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

  548. 

  549. #ifdef USING_JUCE

  550.     if (handle->isStandalone)

  551.         carla_standalone_juce_idle();

  552. #endif

  553. }

  554. 

  555. bool carla_is_engine_running(CarlaHostHandle handle)

  556. {

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

  558. }

  559. 

  560. const CarlaRuntimeEngineInfo* carla_get_runtime_engine_info(CarlaHostHandle handle)

  561. {

  562.     static CarlaRuntimeEngineInfo retInfo;

  563. 

  564.     // reset

  565.     retInfo.load = 0.0f;

  566.     retInfo.xruns = 0;

  567. 

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

  569. 

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

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

  572. 

  573.     return &retInfo;

  574. }

  575. 

  576. #ifndef BUILD_BRIDGE

  577. const CarlaRuntimeEngineDriverDeviceInfo* carla_get_runtime_engine_driver_device_info(CarlaHostHandle handle)

  578. {

  579.     static CarlaRuntimeEngineDriverDeviceInfo retInfo;

  580. 

  581.     // reset

  582.     retInfo.name = gNullCharPtr;

  583.     retInfo.hints = 0x0;

  584.     retInfo.bufferSize = 0;

  585.     retInfo.bufferSizes = nullptr;

  586.     retInfo.sampleRate = 0.0;

  587.     retInfo.sampleRates = nullptr;

  588. 

  589.     const char* audioDriver;

  590.     const char* audioDevice;

  591. 

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

  593.     {

  594.         audioDriver = engine->getCurrentDriverName();

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

  596. 

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

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

  599.     }

  600.     else if (handle->isStandalone)

  601.     {

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

  603. 

  604.         audioDriver = shandle.engineOptions.audioDriver;

  605.         audioDevice = shandle.engineOptions.audioDevice;

  606. 

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

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

  609.     }

  610.     else

  611.     {

  612.         return &retInfo;

  613.     }

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

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

  616. 

  617.     uint index = 0;

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

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

  620.     {

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

  622.         CARLA_SAFE_ASSERT_CONTINUE(testDriverName != nullptr);

  623. 

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

  625.             break;

  626.     }

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

  628. 

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

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

  631. 

  632.     retInfo.name        = audioDevice;

  633.     retInfo.hints       = devInfo->hints;

  634.     retInfo.bufferSizes = devInfo->bufferSizes;

  635.     retInfo.sampleRates = devInfo->sampleRates;

  636. 

  637.     return &retInfo;

  638. }

  639. 

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

  641. {

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

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

  644. 

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

  646. }

  647. 

  648. bool carla_show_engine_device_control_panel(CarlaHostHandle handle)

  649. {

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

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

  652. 

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

  654. }

  655. #endif // BUILD_BRIDGE

  656. 

  657. void carla_clear_engine_xruns(CarlaHostHandle handle)

  658. {

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

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

  661. }

  662. 

  663. void carla_cancel_engine_action(CarlaHostHandle handle)

  664. {

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

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

  667. }

  668. 

  669. bool carla_set_engine_about_to_close(CarlaHostHandle handle)

  670. {

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

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

  673. 

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

  675. }

  676. 

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

  678. {

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

  680. 

  681.     if (handle->isStandalone)

  682.     {

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

  684. 

  685.         shandle.engineCallback    = func;

  686.         shandle.engineCallbackPtr = ptr;

  687. 

  688. #ifndef BUILD_BRIDGE

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

  690. #endif

  691.     }

  692. 

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

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

  695. }

  696. 

  697. #ifndef BUILD_BRIDGE

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

  699. {

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

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

  702. 

  703.     if (handle->isStandalone)

  704.     {

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

  706. 

  707.         switch (option)

  708.         {

  709.         case CB::ENGINE_OPTION_DEBUG:

  710.             break;

  711. 

  712.         case CB::ENGINE_OPTION_PROCESS_MODE:

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

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

  715.             break;

  716. 

  717.         case CB::ENGINE_OPTION_TRANSPORT_MODE:

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

  719. 

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

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

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

  723.             {

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

  725. 

  726.                 if (shandle.engineCallback != nullptr)

  727.                     shandle.engineCallback(shandle.engineCallbackPtr,

  728.                                            CB::ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED,

  729.                                            0,

  730.                                            CB::ENGINE_TRANSPORT_MODE_JACK,

  731.                                            0, 0, 0.0f,

  732.                                            shandle.engineOptions.transportExtra);

  733.             }

  734.             else

  735.             {

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

  737.             }

  738. 

  739.             delete[] shandle.engineOptions.transportExtra;

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

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

  742.             else

  743.                 shandle.engineOptions.transportExtra = nullptr;

  744.             break;

  745. 

  746.         case CB::ENGINE_OPTION_FORCE_STEREO:

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

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

  749.             break;

  750. 

  751.         case CB::ENGINE_OPTION_PREFER_PLUGIN_BRIDGES:

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

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

  754.             break;

  755. 

  756.         case CB::ENGINE_OPTION_PREFER_UI_BRIDGES:

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

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

  759.             break;

  760. 

  761.         case CB::ENGINE_OPTION_UIS_ALWAYS_ON_TOP:

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

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

  764.             break;

  765. 

  766.         case CB::ENGINE_OPTION_MAX_PARAMETERS:

  767.             CARLA_SAFE_ASSERT_RETURN(value >= 0,);

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

  769.             break;

  770. 

  771.         case CB::ENGINE_OPTION_RESET_XRUNS:

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

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

  774.             break;

  775. 

  776.         case CB::ENGINE_OPTION_UI_BRIDGES_TIMEOUT:

  777.             CARLA_SAFE_ASSERT_RETURN(value >= 0,);

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

  779.             break;

  780. 

  781.         case CB::ENGINE_OPTION_AUDIO_BUFFER_SIZE:

  782.             CARLA_SAFE_ASSERT_RETURN(value >= 8,);

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

  784.             break;

  785. 

  786.         case CB::ENGINE_OPTION_AUDIO_SAMPLE_RATE:

  787.             CARLA_SAFE_ASSERT_RETURN(value >= 22050,);

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

  789.             break;

  790. 

  791.         case CB::ENGINE_OPTION_AUDIO_TRIPLE_BUFFER:

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

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

  794.             break;

  795. 

  796.         case CB::ENGINE_OPTION_AUDIO_DRIVER:

  797.             CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr,);

  798. 

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

  800.                 delete[] shandle.engineOptions.audioDriver;

  801. 

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

  803.             break;

  804. 

  805.         case CB::ENGINE_OPTION_AUDIO_DEVICE:

  806.             CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr,);

  807. 

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

  809.                 delete[] shandle.engineOptions.audioDevice;

  810. 

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

  812.             break;

  813. 

  814.         case CB::ENGINE_OPTION_OSC_ENABLED:

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

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

  817.             break;

  818. 

  819.         case CB::ENGINE_OPTION_OSC_PORT_TCP:

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

  821.             shandle.engineOptions.oscPortTCP = value;

  822.             break;

  823. 

  824.         case CB::ENGINE_OPTION_OSC_PORT_UDP:

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

  826.             shandle.engineOptions.oscPortUDP = value;

  827.             break;

  828. 

  829.         case CB::ENGINE_OPTION_FILE_PATH:

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

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

  832.             CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr,);

  833. 

  834.             switch (value)

  835.             {

  836.             case CB::FILE_AUDIO:

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

  838.                     delete[] shandle.engineOptions.pathAudio;

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

  840.                 break;

  841.             case CB::FILE_MIDI:

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

  843.                     delete[] shandle.engineOptions.pathMIDI;

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

  845.                 break;

  846.             }

  847.             break;

  848. 

  849.         case CB::ENGINE_OPTION_PLUGIN_PATH:

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

  851.             CARLA_SAFE_ASSERT_RETURN(value <= CB::PLUGIN_SFZ,);

  852.             CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr,);

  853. 

  854.             switch (value)

  855.             {

  856.             case CB::PLUGIN_LADSPA:

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

  858.                     delete[] shandle.engineOptions.pathLADSPA;

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

  860.                 break;

  861.             case CB::PLUGIN_DSSI:

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

  863.                     delete[] shandle.engineOptions.pathDSSI;

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

  865.                 break;

  866.             case CB::PLUGIN_LV2:

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

  868.                     delete[] shandle.engineOptions.pathLV2;

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

  870.                 break;

  871.             case CB::PLUGIN_VST2:

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

  873.                     delete[] shandle.engineOptions.pathVST2;

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

  875.                 break;

  876.             case CB::PLUGIN_VST3:

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

  878.                     delete[] shandle.engineOptions.pathVST3;

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

  880.                 break;

  881.             case CB::PLUGIN_SF2:

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

  883.                     delete[] shandle.engineOptions.pathSF2;

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

  885.                 break;

  886.             case CB::PLUGIN_SFZ:

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

  888.                     delete[] shandle.engineOptions.pathSFZ;

  889.                 shandle.engineOptions.pathSFZ = 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. # ifndef 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 // CARLA_OS_WIN

  976. 

  977.         case CB::ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT:

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

  979.             break;

  980. 

  981.         case CB::ENGINE_OPTION_CLIENT_NAME_PREFIX:

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

  983.                 delete[] shandle.engineOptions.clientNamePrefix;

  984. 

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

  986.                                                    ? carla_strdup_safe(valueStr)

  987.                                                    : nullptr;

  988.             break;

  989.         }

  990.     }

  991. 

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

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

  994. }

  995. #endif // BUILD_BRIDGE

  996. 

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

  998. {

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

  1000. 

  1001.     if (handle->isStandalone)

  1002.     {

  1003.         CarlaHostStandalone& shandle((CarlaHostStandalone&)*handle);

  1004. 

  1005.         shandle.fileCallback    = func;

  1006.         shandle.fileCallbackPtr = ptr;

  1007.     }

  1008. 

  1009.     if (handle->engine != nullptr)

  1010.         handle->engine->setFileCallback(func, ptr);

  1011. }

  1012. 

  1013. // --------------------------------------------------------------------------------------------------------------------

  1014. 

  1015. bool carla_load_file(CarlaHostHandle handle, const char* filename)

  1016. {

  1017.     CARLA_SAFE_ASSERT_RETURN(filename != nullptr && filename[0] != '\0', false);

  1018.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1019. 

  1020.     carla_debug("carla_load_file(%p, \"%s\")", handle, filename);

  1021. 

  1022.     return handle->engine->loadFile(filename);

  1023. }

  1024. 

  1025. bool carla_load_project(CarlaHostHandle handle, const char* filename)

  1026. {

  1027.     CARLA_SAFE_ASSERT_RETURN(filename != nullptr && filename[0] != '\0', false);

  1028.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1029. 

  1030.     carla_debug("carla_load_project(%p, \"%s\")", handle, filename);

  1031. 

  1032.     return handle->engine->loadProject(filename, true);

  1033. }

  1034. 

  1035. bool carla_save_project(CarlaHostHandle handle, const char* filename)

  1036. {

  1037.     CARLA_SAFE_ASSERT_RETURN(filename != nullptr && filename[0] != '\0', false);

  1038.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1039. 

  1040.     carla_debug("carla_save_project(%p, \"%s\")", handle, filename);

  1041. 

  1042.     return handle->engine->saveProject(filename, true);

  1043. }

  1044. 

  1045. #ifndef BUILD_BRIDGE

  1046. const char* carla_get_current_project_folder(CarlaHostHandle handle)

  1047. {

  1048.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, gNullCharPtr);

  1049. 

  1050.     carla_debug("carla_get_current_project_folder(%p)", handle);

  1051. 

  1052.     if (const char* const ret = handle->engine->getCurrentProjectFolder())

  1053.         return ret;

  1054. 

  1055.     return gNullCharPtr;

  1056. }

  1057. 

  1058. const char* carla_get_current_project_filename(CarlaHostHandle handle)

  1059. {

  1060.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->isStandalone, gNullCharPtr);

  1061. 

  1062.     carla_debug("carla_get_current_project_filename(%p)", handle);

  1063. 

  1064.     if (const char* const ret = handle->engine->getCurrentProjectFilename())

  1065.         return ret;

  1066. 

  1067.     return gNullCharPtr;

  1068. }

  1069. 

  1070. void carla_clear_project_filename(CarlaHostHandle handle)

  1071. {

  1072.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  1073. 

  1074.     carla_debug("carla_clear_project_filename(%p)", handle);

  1075. 

  1076.     handle->engine->clearCurrentProjectFilename();

  1077. }

  1078. 

  1079. // --------------------------------------------------------------------------------------------------------------------

  1080. 

  1081. bool carla_patchbay_connect(CarlaHostHandle handle, bool external, uint groupIdA, uint portIdA, uint groupIdB, uint portIdB)

  1082. {

  1083.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1084. 

  1085.     carla_debug("carla_patchbay_connect(%p, %s, %u, %u, %u, %u)",

  1086.                 handle, bool2str(external), groupIdA, portIdA, groupIdB, portIdB);

  1087. 

  1088.     return handle->engine->patchbayConnect(external, groupIdA, portIdA, groupIdB, portIdB);

  1089. }

  1090. 

  1091. bool carla_patchbay_disconnect(CarlaHostHandle handle, bool external, uint connectionId)

  1092. {

  1093.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1094. 

  1095.     carla_debug("carla_patchbay_disconnect(%p, %s, %i)", handle, bool2str(external), connectionId);

  1096. 

  1097.     return handle->engine->patchbayDisconnect(external, connectionId);

  1098. }

  1099. 

  1100. bool carla_patchbay_set_group_pos(CarlaHostHandle handle, bool external, uint groupId, int x1, int y1, int x2, int y2)

  1101. {

  1102.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr && handle->engine->isRunning(),

  1103.                                              "Engine is not running", false);

  1104. 

  1105.     carla_debug("carla_patchbay_set_group_pos(%p, %s, %u, %i, %i, %i, %i)",

  1106.                 handle, bool2str(external), groupId, x1, y1, x2, y2);

  1107. 

  1108.     if (handle->engine->isAboutToClose())

  1109.         return true;

  1110. 

  1111.     return handle->engine->patchbaySetGroupPos(false, true, external, groupId, x1, y1, x2, y2);

  1112. }

  1113. 

  1114. bool carla_patchbay_refresh(CarlaHostHandle handle, bool external)

  1115. {

  1116.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1117. 

  1118.     carla_debug("carla_patchbay_refresh(%p, %s)", handle, bool2str(external));

  1119. 

  1120.     return handle->engine->patchbayRefresh(true, false, external);

  1121. }

  1122. 

  1123. // --------------------------------------------------------------------------------------------------------------------

  1124. 

  1125. void carla_transport_play(CarlaHostHandle handle)

  1126. {

  1127.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->engine->isRunning(),);

  1128. 

  1129.     carla_debug("carla_transport_play(%p)", handle);

  1130. 

  1131.     handle->engine->transportPlay();

  1132. }

  1133. 

  1134. void carla_transport_pause(CarlaHostHandle handle)

  1135. {

  1136.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->engine->isRunning(),);

  1137. 

  1138.     carla_debug("carla_transport_pause(%p)", handle);

  1139. 

  1140.     handle->engine->transportPause();

  1141. }

  1142. 

  1143. void carla_transport_bpm(CarlaHostHandle handle, double bpm)

  1144. {

  1145.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->engine->isRunning(),);

  1146. 

  1147.     carla_debug("carla_transport_bpm(%p, %f)", handle, bpm);

  1148. 

  1149.     handle->engine->transportBPM(bpm);

  1150. }

  1151. 

  1152. void carla_transport_relocate(CarlaHostHandle handle, uint64_t frame)

  1153. {

  1154.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->engine->isRunning(),);

  1155. 

  1156.     carla_debug("carla_transport_relocate(%p, %i)", handle, frame);

  1157. 

  1158.     handle->engine->transportRelocate(frame);

  1159. }

  1160. 

  1161. uint64_t carla_get_current_transport_frame(CarlaHostHandle handle)

  1162. {

  1163.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->engine->isRunning(), 0);

  1164. 

  1165.     return handle->engine->getTimeInfo().frame;

  1166. }

  1167. 

  1168. const CarlaTransportInfo* carla_get_transport_info(CarlaHostHandle handle)

  1169. {

  1170.     static CarlaTransportInfo retTransInfo;

  1171.     retTransInfo.clear();

  1172. 

  1173.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->engine->isRunning(), &retTransInfo);

  1174. 

  1175.     const CB::EngineTimeInfo& timeInfo(handle->engine->getTimeInfo());

  1176. 

  1177.     retTransInfo.playing = timeInfo.playing;

  1178.     retTransInfo.frame   = timeInfo.frame;

  1179. 

  1180.     if (timeInfo.bbt.valid)

  1181.     {

  1182.         retTransInfo.bar  = timeInfo.bbt.bar;

  1183.         retTransInfo.beat = timeInfo.bbt.beat;

  1184.         retTransInfo.tick = static_cast<int32_t>(timeInfo.bbt.tick + 0.5);

  1185.         retTransInfo.bpm  = timeInfo.bbt.beatsPerMinute;

  1186.     }

  1187. 

  1188.     return &retTransInfo;

  1189. }

  1190. #endif

  1191. 

  1192. // --------------------------------------------------------------------------------------------------------------------

  1193. 

  1194. uint32_t carla_get_current_plugin_count(CarlaHostHandle handle)

  1195. {

  1196.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0);

  1197. 

  1198.     carla_debug("carla_get_current_plugin_count(%p)", handle);

  1199. 

  1200.     return handle->engine->getCurrentPluginCount();

  1201. }

  1202. 

  1203. uint32_t carla_get_max_plugin_number(CarlaHostHandle handle)

  1204. {

  1205.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0);

  1206. 

  1207.     carla_debug("carla_get_max_plugin_number(%p)", handle);

  1208. 

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

  1210. }

  1211. 

  1212. // --------------------------------------------------------------------------------------------------------------------

  1213. 

  1214. bool carla_add_plugin(CarlaHostHandle handle,

  1215.                       BinaryType btype, PluginType ptype,

  1216.                       const char* filename, const char* name, const char* label, int64_t uniqueId,

  1217.                       const void* extraPtr, uint options)

  1218. {

  1219.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1220. 

  1221.     carla_debug("carla_add_plugin(%p, %i:%s, %i:%s, \"%s\", \"%s\", \"%s\", " P_INT64 ", %p, %u)",

  1222.                 handle,

  1223.                 btype, CB::BinaryType2Str(btype),

  1224.                 ptype, CB::PluginType2Str(ptype),

  1225.                 filename, name, label, uniqueId, extraPtr, options);

  1226. 

  1227.     return handle->engine->addPlugin(btype, ptype, filename, name, label, uniqueId, extraPtr, options);

  1228. }

  1229. 

  1230. bool carla_remove_plugin(CarlaHostHandle handle, uint pluginId)

  1231. {

  1232.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1233. 

  1234.     carla_debug("carla_remove_plugin(%p, %i)", handle, pluginId);

  1235. 

  1236.     return handle->engine->removePlugin(pluginId);

  1237. }

  1238. 

  1239. bool carla_remove_all_plugins(CarlaHostHandle handle)

  1240. {

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

  1242. 

  1243.     carla_debug("carla_remove_all_plugins(%p)", handle);

  1244. 

  1245.     return handle->engine->removeAllPlugins();

  1246. }

  1247. 

  1248. #ifndef BUILD_BRIDGE

  1249. bool carla_rename_plugin(CarlaHostHandle handle, uint pluginId, const char* newName)

  1250. {

  1251.     CARLA_SAFE_ASSERT_RETURN(newName != nullptr && newName[0] != '\0', false);

  1252.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1253. 

  1254.     carla_debug("carla_rename_plugin(%p, %i, \"%s\")", handle, pluginId, newName);

  1255. 

  1256.     return handle->engine->renamePlugin(pluginId, newName);

  1257. }

  1258. 

  1259. bool carla_clone_plugin(CarlaHostHandle handle, uint pluginId)

  1260. {

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

  1262. 

  1263.     carla_debug("carla_clone_plugin(%p, %i)", handle, pluginId);

  1264. 

  1265.     return handle->engine->clonePlugin(pluginId);

  1266. }

  1267. 

  1268. bool carla_replace_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_replace_plugin(%p, %i)", handle, pluginId);

  1273. 

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

  1275. }

  1276. 

  1277. bool carla_switch_plugins(CarlaHostHandle handle, uint pluginIdA, uint pluginIdB)

  1278. {

  1279.     CARLA_SAFE_ASSERT_RETURN(pluginIdA != pluginIdB, false);

  1280.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1281. 

  1282.     carla_debug("carla_switch_plugins(%p, %i, %i)", handle, pluginIdA, pluginIdB);

  1283. 

  1284.     return handle->engine->switchPlugins(pluginIdA, pluginIdB);

  1285. }

  1286. #endif

  1287. 

  1288. // --------------------------------------------------------------------------------------------------------------------

  1289. 

  1290. bool carla_load_plugin_state(CarlaHostHandle handle, uint pluginId, const char* filename)

  1291. {

  1292.     CARLA_SAFE_ASSERT_RETURN(filename != nullptr && filename[0] != '\0', false);

  1293.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr

  1294.                                           && handle->engine->isRunning(), "Engine is not running", false);

  1295. 

  1296.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1297.         return plugin->loadStateFromFile(filename);

  1298. 

  1299.     return false;

  1300. }

  1301. 

  1302. bool carla_save_plugin_state(CarlaHostHandle handle, uint pluginId, const char* filename)

  1303. {

  1304.     CARLA_SAFE_ASSERT_RETURN(filename != nullptr && filename[0] != '\0', false);

  1305.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1306. 

  1307.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1308.         return plugin->saveStateToFile(filename);

  1309. 

  1310.     return false;

  1311. }

  1312. 

  1313. bool carla_export_plugin_lv2(CarlaHostHandle handle, uint pluginId, const char* lv2path)

  1314. {

  1315.     CARLA_SAFE_ASSERT_RETURN(lv2path != nullptr && lv2path[0] != '\0', false);

  1316.     CARLA_SAFE_ASSERT_WITH_LAST_ERROR_RETURN(handle->engine != nullptr, "Engine is not initialized", false);

  1317. 

  1318.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1319.         return plugin->exportAsLV2(lv2path);

  1320. 

  1321.     return false;

  1322. }

  1323. 

  1324. // --------------------------------------------------------------------------------------------------------------------

  1325. 

  1326. const CarlaPluginInfo* carla_get_plugin_info(CarlaHostHandle handle, uint pluginId)

  1327. {

  1328.     static CarlaPluginInfo retInfo;

  1329. 

  1330.     // reset

  1331.     retInfo.type             = CB::PLUGIN_NONE;

  1332.     retInfo.category         = CB::PLUGIN_CATEGORY_NONE;

  1333.     retInfo.hints            = 0x0;

  1334.     retInfo.optionsAvailable = 0x0;

  1335.     retInfo.optionsEnabled   = 0x0;

  1336.     retInfo.filename         = gNullCharPtr;

  1337.     retInfo.name             = gNullCharPtr;

  1338.     retInfo.iconName         = gNullCharPtr;

  1339.     retInfo.uniqueId         = 0;

  1340. 

  1341.     // cleanup

  1342.     if (retInfo.label != gNullCharPtr)

  1343.     {

  1344.         delete[] retInfo.label;

  1345.         retInfo.label = gNullCharPtr;

  1346.     }

  1347. 

  1348.     if (retInfo.maker != gNullCharPtr)

  1349.     {

  1350.         delete[] retInfo.maker;

  1351.         retInfo.maker = gNullCharPtr;

  1352.     }

  1353. 

  1354.     if (retInfo.copyright != gNullCharPtr)

  1355.     {

  1356.         delete[] retInfo.copyright;

  1357.         retInfo.copyright = gNullCharPtr;

  1358.     }

  1359. 

  1360.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retInfo);

  1361. 

  1362.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1363.     {

  1364.         char strBuf[STR_MAX+1];

  1365.         carla_zeroChars(strBuf, STR_MAX+1);

  1366. 

  1367.         retInfo.type     = plugin->getType();

  1368.         retInfo.category = plugin->getCategory();

  1369.         retInfo.hints    = plugin->getHints();

  1370.         retInfo.filename = plugin->getFilename();

  1371.         retInfo.name     = plugin->getName();

  1372.         retInfo.iconName = plugin->getIconName();

  1373.         retInfo.uniqueId = plugin->getUniqueId();

  1374. 

  1375.         retInfo.optionsAvailable = plugin->getOptionsAvailable();

  1376.         retInfo.optionsEnabled   = plugin->getOptionsEnabled();

  1377. 

  1378.         if (plugin->getLabel(strBuf))

  1379.             retInfo.label = carla_strdup_safe(strBuf);

  1380.         if (plugin->getMaker(strBuf))

  1381.             retInfo.maker = carla_strdup_safe(strBuf);

  1382.         if (plugin->getCopyright(strBuf))

  1383.             retInfo.copyright = carla_strdup_safe(strBuf);

  1384. 

  1385.         checkStringPtr(retInfo.filename);

  1386.         checkStringPtr(retInfo.name);

  1387.         checkStringPtr(retInfo.iconName);

  1388.         checkStringPtr(retInfo.label);

  1389.         checkStringPtr(retInfo.maker);

  1390.         checkStringPtr(retInfo.copyright);

  1391.     }

  1392. 

  1393.     return &retInfo;

  1394. }

  1395. 

  1396. const CarlaPortCountInfo* carla_get_audio_port_count_info(CarlaHostHandle handle, uint pluginId)

  1397. {

  1398.     static CarlaPortCountInfo retInfo;

  1399.     carla_zeroStruct(retInfo);

  1400. 

  1401.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retInfo);

  1402. 

  1403.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1404.     {

  1405.         retInfo.ins   = plugin->getAudioInCount();

  1406.         retInfo.outs  = plugin->getAudioOutCount();

  1407.     }

  1408. 

  1409.     return &retInfo;

  1410. }

  1411. 

  1412. const CarlaPortCountInfo* carla_get_midi_port_count_info(CarlaHostHandle handle, uint pluginId)

  1413. {

  1414.     static CarlaPortCountInfo retInfo;

  1415.     carla_zeroStruct(retInfo);

  1416. 

  1417.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retInfo);

  1418. 

  1419.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1420.     {

  1421.         retInfo.ins   = plugin->getMidiInCount();

  1422.         retInfo.outs  = plugin->getMidiOutCount();

  1423.     }

  1424. 

  1425.     return &retInfo;

  1426. }

  1427. 

  1428. const CarlaPortCountInfo* carla_get_parameter_count_info(CarlaHostHandle handle, uint pluginId)

  1429. {

  1430.     static CarlaPortCountInfo retInfo;

  1431.     carla_zeroStruct(retInfo);

  1432. 

  1433.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retInfo);

  1434. 

  1435.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1436.         plugin->getParameterCountInfo(retInfo.ins, retInfo.outs);

  1437. 

  1438.     return &retInfo;

  1439. }

  1440. 

  1441. const CarlaParameterInfo* carla_get_parameter_info(CarlaHostHandle handle, uint pluginId, uint32_t parameterId)

  1442. {

  1443.     static CarlaParameterInfo retInfo;

  1444. 

  1445.     // reset

  1446.     retInfo.scalePointCount = 0;

  1447. 

  1448.     // cleanup

  1449.     if (retInfo.name != gNullCharPtr)

  1450.     {

  1451.         delete[] retInfo.name;

  1452.         retInfo.name = gNullCharPtr;

  1453.     }

  1454. 

  1455.     if (retInfo.symbol != gNullCharPtr)

  1456.     {

  1457.         delete[] retInfo.symbol;

  1458.         retInfo.symbol = gNullCharPtr;

  1459.     }

  1460. 

  1461.     if (retInfo.unit != gNullCharPtr)

  1462.     {

  1463.         delete[] retInfo.unit;

  1464.         retInfo.unit = gNullCharPtr;

  1465.     }

  1466. 

  1467.     if (retInfo.comment != gNullCharPtr)

  1468.     {

  1469.         delete[] retInfo.comment;

  1470.         retInfo.comment = gNullCharPtr;

  1471.     }

  1472. 

  1473.     if (retInfo.groupName != gNullCharPtr)

  1474.     {

  1475.         delete[] retInfo.groupName;

  1476.         retInfo.groupName = gNullCharPtr;

  1477.     }

  1478. 

  1479.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retInfo);

  1480. 

  1481.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1482.     {

  1483.         char strBuf[STR_MAX+1];

  1484.         carla_zeroChars(strBuf, STR_MAX+1);

  1485. 

  1486.         retInfo.scalePointCount = plugin->getParameterScalePointCount(parameterId);

  1487. 

  1488.         if (plugin->getParameterName(parameterId, strBuf))

  1489.         {

  1490.             retInfo.name = carla_strdup_safe(strBuf);

  1491.             carla_zeroChars(strBuf, STR_MAX+1);

  1492.         }

  1493. 

  1494.         if (plugin->getParameterSymbol(parameterId, strBuf))

  1495.         {

  1496.             retInfo.symbol = carla_strdup_safe(strBuf);

  1497.             carla_zeroChars(strBuf, STR_MAX+1);

  1498.         }

  1499. 

  1500.         if (plugin->getParameterUnit(parameterId, strBuf))

  1501.         {

  1502.             retInfo.unit = carla_strdup_safe(strBuf);

  1503.             carla_zeroChars(strBuf, STR_MAX+1);

  1504.         }

  1505. 

  1506.         if (plugin->getParameterComment(parameterId, strBuf))

  1507.         {

  1508.             retInfo.comment = carla_strdup_safe(strBuf);

  1509.             carla_zeroChars(strBuf, STR_MAX+1);

  1510.         }

  1511. 

  1512.         if (plugin->getParameterGroupName(parameterId, strBuf))

  1513.         {

  1514.             retInfo.groupName = carla_strdup_safe(strBuf);

  1515.             carla_zeroChars(strBuf, STR_MAX+1);

  1516.         }

  1517. 

  1518.         checkStringPtr(retInfo.name);

  1519.         checkStringPtr(retInfo.symbol);

  1520.         checkStringPtr(retInfo.unit);

  1521.         checkStringPtr(retInfo.comment);

  1522.         checkStringPtr(retInfo.groupName);

  1523.     }

  1524. 

  1525.     return &retInfo;

  1526. }

  1527. 

  1528. const CarlaScalePointInfo* carla_get_parameter_scalepoint_info(CarlaHostHandle handle,

  1529.                                                                uint pluginId,

  1530.                                                                uint32_t parameterId,

  1531.                                                                uint32_t scalePointId)

  1532. {

  1533.     CARLA_ASSERT(handle->engine != nullptr);

  1534. 

  1535.     static CarlaScalePointInfo retInfo;

  1536. 

  1537.     // reset

  1538.     retInfo.value = 0.0f;

  1539. 

  1540.     // cleanup

  1541.     if (retInfo.label != gNullCharPtr)

  1542.     {

  1543.         delete[] retInfo.label;

  1544.         retInfo.label = gNullCharPtr;

  1545.     }

  1546. 

  1547.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retInfo);

  1548. 

  1549.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1550.     {

  1551.         char strBuf[STR_MAX+1];

  1552. 

  1553.         retInfo.value = plugin->getParameterScalePointValue(parameterId, scalePointId);

  1554. 

  1555.         carla_zeroChars(strBuf, STR_MAX+1);

  1556.         if (plugin->getParameterScalePointLabel(parameterId, scalePointId, strBuf))

  1557.             retInfo.label = carla_strdup_safe(strBuf);

  1558. 

  1559.         checkStringPtr(retInfo.label);

  1560.     }

  1561. 

  1562.     return &retInfo;

  1563. }

  1564. 

  1565. // --------------------------------------------------------------------------------------------------------------------

  1566. 

  1567. const ParameterData* carla_get_parameter_data(CarlaHostHandle handle, uint pluginId, uint32_t parameterId)

  1568. {

  1569.     static ParameterData retParamData;

  1570. 

  1571.     // reset

  1572.     retParamData.type        = CB::PARAMETER_UNKNOWN;

  1573.     retParamData.hints       = 0x0;

  1574.     retParamData.index       = CB::PARAMETER_NULL;

  1575.     retParamData.rindex      = -1;

  1576.     retParamData.midiChannel = 0;

  1577.     retParamData.mappedControlIndex = CB::CONTROL_INDEX_NONE;

  1578.     retParamData.mappedMinimum = 0.0f;

  1579.     retParamData.mappedMaximum = 0.0f;

  1580. 

  1581.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retParamData);

  1582. 

  1583.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1584.     {

  1585.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(), &retParamData);

  1586. 

  1587.         const ParameterData& pluginParamData(plugin->getParameterData(parameterId));

  1588.         retParamData.type        = pluginParamData.type;

  1589.         retParamData.hints       = pluginParamData.hints;

  1590.         retParamData.index       = pluginParamData.index;

  1591.         retParamData.rindex      = pluginParamData.rindex;

  1592.         retParamData.midiChannel = pluginParamData.midiChannel;

  1593.         retParamData.mappedControlIndex = pluginParamData.mappedControlIndex;

  1594.         retParamData.mappedMinimum = pluginParamData.mappedMinimum;

  1595.         retParamData.mappedMaximum = pluginParamData.mappedMaximum;

  1596.     }

  1597. 

  1598.     return &retParamData;

  1599. }

  1600. 

  1601. const ParameterRanges* carla_get_parameter_ranges(CarlaHostHandle handle, uint pluginId, uint32_t parameterId)

  1602. {

  1603.     static ParameterRanges retParamRanges;

  1604. 

  1605.     // reset

  1606.     retParamRanges.def       = 0.0f;

  1607.     retParamRanges.min       = 0.0f;

  1608.     retParamRanges.max       = 1.0f;

  1609.     retParamRanges.step      = 0.01f;

  1610.     retParamRanges.stepSmall = 0.0001f;

  1611.     retParamRanges.stepLarge = 0.1f;

  1612. 

  1613.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retParamRanges);

  1614. 

  1615.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1616.     {

  1617.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(), &retParamRanges);

  1618. 

  1619.         const ParameterRanges& pluginParamRanges(plugin->getParameterRanges(parameterId));

  1620.         retParamRanges.def       = pluginParamRanges.def;

  1621.         retParamRanges.min       = pluginParamRanges.min;

  1622.         retParamRanges.max       = pluginParamRanges.max;

  1623.         retParamRanges.step      = pluginParamRanges.step;

  1624.         retParamRanges.stepSmall = pluginParamRanges.stepSmall;

  1625.         retParamRanges.stepLarge = pluginParamRanges.stepLarge;

  1626.     }

  1627. 

  1628.     return &retParamRanges;

  1629. }

  1630. 

  1631. const MidiProgramData* carla_get_midi_program_data(CarlaHostHandle handle, uint pluginId, uint32_t midiProgramId)

  1632. {

  1633.     static MidiProgramData retMidiProgData = { 0, 0, gNullCharPtr };

  1634. 

  1635.     // reset

  1636.     retMidiProgData.bank    = 0;

  1637.     retMidiProgData.program = 0;

  1638. 

  1639.     if (retMidiProgData.name != gNullCharPtr)

  1640.     {

  1641.         delete[] retMidiProgData.name;

  1642.         retMidiProgData.name = gNullCharPtr;

  1643.     }

  1644. 

  1645.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retMidiProgData);

  1646. 

  1647.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1648.     {

  1649.         CARLA_SAFE_ASSERT_RETURN(midiProgramId < plugin->getMidiProgramCount(), &retMidiProgData);

  1650. 

  1651.         const MidiProgramData& pluginMidiProgData(plugin->getMidiProgramData(midiProgramId));

  1652.         retMidiProgData.bank    = pluginMidiProgData.bank;

  1653.         retMidiProgData.program = pluginMidiProgData.program;

  1654. 

  1655.         if (pluginMidiProgData.name != nullptr)

  1656.         {

  1657.             retMidiProgData.name = carla_strdup_safe(pluginMidiProgData.name);

  1658.             checkStringPtr(retMidiProgData.name);

  1659.         }

  1660.         else

  1661.         {

  1662.             retMidiProgData.name = gNullCharPtr;

  1663.         }

  1664.     }

  1665. 

  1666.     return &retMidiProgData;

  1667. }

  1668. 

  1669. const CustomData* carla_get_custom_data(CarlaHostHandle handle, uint pluginId, uint32_t customDataId)

  1670. {

  1671.     static CustomData retCustomData = { gNullCharPtr, gNullCharPtr, gNullCharPtr };

  1672. 

  1673.     // reset

  1674.     if (retCustomData.type != gNullCharPtr)

  1675.     {

  1676.         delete[] retCustomData.type;

  1677.         retCustomData.type = gNullCharPtr;

  1678.     }

  1679. 

  1680.     if (retCustomData.key != gNullCharPtr)

  1681.     {

  1682.         delete[] retCustomData.key;

  1683.         retCustomData.key = gNullCharPtr;

  1684.     }

  1685. 

  1686.     if (retCustomData.value != gNullCharPtr)

  1687.     {

  1688.         delete[] retCustomData.value;

  1689.         retCustomData.value = gNullCharPtr;

  1690.     }

  1691. 

  1692.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, &retCustomData);

  1693. 

  1694.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1695.     {

  1696.         CARLA_SAFE_ASSERT_RETURN(customDataId < plugin->getCustomDataCount(), &retCustomData)

  1697. 

  1698.         const CustomData& pluginCustomData(plugin->getCustomData(customDataId));

  1699.         retCustomData.type  = carla_strdup_safe(pluginCustomData.type);

  1700.         retCustomData.key   = carla_strdup_safe(pluginCustomData.key);

  1701.         retCustomData.value = carla_strdup_safe(pluginCustomData.value);

  1702.         checkStringPtr(retCustomData.type);

  1703.         checkStringPtr(retCustomData.key);

  1704.         checkStringPtr(retCustomData.value);

  1705.     }

  1706. 

  1707.     return &retCustomData;

  1708. }

  1709. 

  1710. const char* carla_get_custom_data_value(CarlaHostHandle handle, uint pluginId, const char* type, const char* key)

  1711. {

  1712.     CARLA_SAFE_ASSERT_RETURN(type != nullptr && type[0] != '\0', gNullCharPtr);

  1713.     CARLA_SAFE_ASSERT_RETURN(key != nullptr && key[0] != '\0', gNullCharPtr);

  1714.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, gNullCharPtr);

  1715. 

  1716.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1717.     {

  1718.         const uint32_t count = plugin->getCustomDataCount();

  1719. 

  1720.         if (count == 0)

  1721.             return gNullCharPtr;

  1722. 

  1723.         static CarlaString customDataValue;

  1724. 

  1725.         for (uint32_t i=0; i<count; ++i)

  1726.         {

  1727.             const CustomData& pluginCustomData(plugin->getCustomData(i));

  1728. 

  1729.             if (std::strcmp(pluginCustomData.type, type) != 0)

  1730.                 continue;

  1731.             if (std::strcmp(pluginCustomData.key, key) != 0)

  1732.                 continue;

  1733. 

  1734.             customDataValue = pluginCustomData.value;

  1735.             return customDataValue.buffer();

  1736.         }

  1737.     }

  1738. 

  1739.     return gNullCharPtr;

  1740. }

  1741. 

  1742. const char* carla_get_chunk_data(CarlaHostHandle handle, uint pluginId)

  1743. {

  1744.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, gNullCharPtr);

  1745. 

  1746.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1747.     {

  1748.         CARLA_SAFE_ASSERT_RETURN(plugin->getOptionsEnabled() & CB::PLUGIN_OPTION_USE_CHUNKS, gNullCharPtr);

  1749. 

  1750.         void* data = nullptr;

  1751.         const std::size_t dataSize(plugin->getChunkData(&data));

  1752.         CARLA_SAFE_ASSERT_RETURN(data != nullptr && dataSize > 0, gNullCharPtr);

  1753. 

  1754.         static CarlaString chunkData;

  1755. 

  1756.         chunkData = CarlaString::asBase64(data, static_cast<std::size_t>(dataSize));

  1757.         return chunkData.buffer();

  1758.     }

  1759. 

  1760.     return gNullCharPtr;

  1761. }

  1762. 

  1763. // --------------------------------------------------------------------------------------------------------------------

  1764. 

  1765. uint32_t carla_get_parameter_count(CarlaHostHandle handle, uint pluginId)

  1766. {

  1767.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0);

  1768. 

  1769.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1770.         return plugin->getParameterCount();

  1771. 

  1772.     return 0;

  1773. }

  1774. 

  1775. uint32_t carla_get_program_count(CarlaHostHandle handle, uint pluginId)

  1776. {

  1777.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0);

  1778. 

  1779.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1780.         return plugin->getProgramCount();

  1781. 

  1782.     return 0;

  1783. }

  1784. 

  1785. uint32_t carla_get_midi_program_count(CarlaHostHandle handle, uint pluginId)

  1786. {

  1787.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0);

  1788. 

  1789.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1790.         return plugin->getMidiProgramCount();

  1791. 

  1792.     return 0;

  1793. }

  1794. 

  1795. uint32_t carla_get_custom_data_count(CarlaHostHandle handle, uint pluginId)

  1796. {

  1797.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0);

  1798. 

  1799.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1800.         return plugin->getCustomDataCount();

  1801. 

  1802.     return 0;

  1803. }

  1804. 

  1805. // --------------------------------------------------------------------------------------------------------------------

  1806. 

  1807. const char* carla_get_parameter_text(CarlaHostHandle handle, uint pluginId, uint32_t parameterId)

  1808. {

  1809.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, gNullCharPtr);

  1810. 

  1811.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1812.     {

  1813.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(), gNullCharPtr);

  1814. 

  1815.         static char textBuf[STR_MAX+1];

  1816.         carla_zeroChars(textBuf, STR_MAX+1);

  1817. 

  1818.         if (! plugin->getParameterText(parameterId, textBuf))

  1819.             textBuf[0] = '\0';

  1820. 

  1821.         return textBuf;

  1822.     }

  1823. 

  1824.     return gNullCharPtr;

  1825. }

  1826. 

  1827. const char* carla_get_program_name(CarlaHostHandle handle, uint pluginId, uint32_t programId)

  1828. {

  1829.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, nullptr);

  1830. 

  1831.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1832.     {

  1833.         CARLA_SAFE_ASSERT_RETURN(programId < plugin->getProgramCount(), gNullCharPtr);

  1834. 

  1835.         static char programName[STR_MAX+1];

  1836.         carla_zeroChars(programName, STR_MAX+1);

  1837. 

  1838.         if (! plugin->getProgramName(programId, programName))

  1839.             programName[0] = '\0';

  1840. 

  1841.         return programName;

  1842.     }

  1843. 

  1844.     return gNullCharPtr;

  1845. }

  1846. 

  1847. const char* carla_get_midi_program_name(CarlaHostHandle handle, uint pluginId, uint32_t midiProgramId)

  1848. {

  1849.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, gNullCharPtr);

  1850. 

  1851.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1852.     {

  1853.         CARLA_SAFE_ASSERT_RETURN(midiProgramId < plugin->getMidiProgramCount(), gNullCharPtr);

  1854. 

  1855.         static char midiProgramName[STR_MAX+1];

  1856.         carla_zeroChars(midiProgramName, STR_MAX+1);

  1857. 

  1858.         if (! plugin->getMidiProgramName(midiProgramId, midiProgramName))

  1859.             midiProgramName[0] = '\0';

  1860. 

  1861.         return midiProgramName;

  1862.     }

  1863. 

  1864.     return gNullCharPtr;

  1865. }

  1866. 

  1867. const char* carla_get_real_plugin_name(CarlaHostHandle handle, uint pluginId)

  1868. {

  1869.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, gNullCharPtr);

  1870. 

  1871.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1872.     {

  1873.         static char realPluginName[STR_MAX+1];

  1874.         carla_zeroChars(realPluginName, STR_MAX+1);

  1875. 

  1876.         if (! plugin->getRealName(realPluginName))

  1877.             realPluginName[0] = '\0';

  1878. 

  1879.         return realPluginName;

  1880.     }

  1881. 

  1882.     return gNullCharPtr;

  1883. }

  1884. 

  1885. // --------------------------------------------------------------------------------------------------------------------

  1886. 

  1887. int32_t carla_get_current_program_index(CarlaHostHandle handle, uint pluginId)

  1888. {

  1889.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, -1);

  1890. 

  1891.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1892.         return plugin->getCurrentProgram();

  1893. 

  1894.     return -1;

  1895. }

  1896. 

  1897. int32_t carla_get_current_midi_program_index(CarlaHostHandle handle, uint pluginId)

  1898. {

  1899.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, -1);

  1900. 

  1901.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1902.         return plugin->getCurrentMidiProgram();

  1903. 

  1904.     return -1;

  1905. }

  1906. 

  1907. // --------------------------------------------------------------------------------------------------------------------

  1908. 

  1909. float carla_get_default_parameter_value(CarlaHostHandle handle, uint pluginId, uint32_t parameterId)

  1910. {

  1911.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0.0f);

  1912. 

  1913.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1914.     {

  1915.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(), 0.0f);

  1916. 

  1917.         return plugin->getParameterRanges(parameterId).def;

  1918.     }

  1919. 

  1920.     return 0.0f;

  1921. }

  1922. 

  1923. float carla_get_current_parameter_value(CarlaHostHandle handle, uint pluginId, uint32_t parameterId)

  1924. {

  1925.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0.0f);

  1926. 

  1927.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1928.     {

  1929.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(), 0.0f);

  1930. 

  1931.         return plugin->getParameterValue(parameterId);

  1932.     }

  1933. 

  1934.     return 0.0f;

  1935. }

  1936. 

  1937. float carla_get_internal_parameter_value(CarlaHostHandle handle, uint pluginId, int32_t parameterId)

  1938. {

  1939. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  1940.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, (parameterId == CB::PARAMETER_CTRL_CHANNEL) ? -1.0f : 0.0f);

  1941. #else

  1942.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0.0f);

  1943. #endif

  1944.     CARLA_SAFE_ASSERT_RETURN(parameterId != CB::PARAMETER_NULL && parameterId > CB::PARAMETER_MAX, 0.0f);

  1945. 

  1946.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1947.         return plugin->getInternalParameterValue(parameterId);

  1948. 

  1949.     return 0.0f;

  1950. }

  1951. 

  1952. // --------------------------------------------------------------------------------------------------------------------

  1953. 

  1954. const float* carla_get_peak_values(CarlaHostHandle handle, uint pluginId)

  1955. {

  1956.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, nullptr);

  1957. 

  1958.     return handle->engine->getPeaks(pluginId);

  1959. }

  1960. 

  1961. float carla_get_input_peak_value(CarlaHostHandle handle, uint pluginId, bool isLeft)

  1962. {

  1963.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0.0f);

  1964. 

  1965.     return handle->engine->getInputPeak(pluginId, isLeft);

  1966. }

  1967. 

  1968. float carla_get_output_peak_value(CarlaHostHandle handle, uint pluginId, bool isLeft)

  1969. {

  1970.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0.0f);

  1971. 

  1972.     return handle->engine->getOutputPeak(pluginId, isLeft);

  1973. }

  1974. 

  1975. // --------------------------------------------------------------------------------------------------------------------

  1976. 

  1977. CARLA_BACKEND_START_NAMESPACE

  1978. 

  1979. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  1980. // defined in CarlaPluginInternal.cpp

  1981. const void* carla_render_inline_display_internal(const CarlaPluginPtr& plugin, uint32_t width, uint32_t height);

  1982. #endif

  1983. 

  1984. // defined in CarlaPluginLV2.cpp

  1985. const void* carla_render_inline_display_lv2(const CarlaPluginPtr& plugin, uint32_t width, uint32_t height);

  1986. 

  1987. CARLA_BACKEND_END_NAMESPACE

  1988. 

  1989. const CarlaInlineDisplayImageSurface* carla_render_inline_display(CarlaHostHandle handle,

  1990.                                                                   uint pluginId,

  1991.                                                                   uint32_t width, uint32_t height)

  1992. {

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

  1994. 

  1995.     if (handle->engine->isAboutToClose())

  1996.         return nullptr;

  1997. 

  1998.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  1999.     {

  2000.         switch (plugin->getType())

  2001.         {

  2002. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  2003.         case CB::PLUGIN_INTERNAL:

  2004.             return (const CarlaInlineDisplayImageSurface*)CB::carla_render_inline_display_internal(plugin, width, height);

  2005. #endif

  2006.         case CB::PLUGIN_LV2:

  2007.             return (const CarlaInlineDisplayImageSurface*)CB::carla_render_inline_display_lv2(plugin, width, height);

  2008.         default:

  2009.             return nullptr;

  2010.         }

  2011.     }

  2012. 

  2013.     return nullptr;

  2014. }

  2015. 

  2016. // --------------------------------------------------------------------------------------------------------------------

  2017. 

  2018. void carla_set_active(CarlaHostHandle handle, uint pluginId, bool onOff)

  2019. {

  2020.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2021. 

  2022.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2023.         plugin->setActive(onOff, true, false);

  2024. }

  2025. 

  2026. #ifndef BUILD_BRIDGE

  2027. void carla_set_drywet(CarlaHostHandle handle, uint pluginId, float value)

  2028. {

  2029.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2030. 

  2031.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2032.         plugin->setDryWet(value, true, false);

  2033. }

  2034. 

  2035. void carla_set_volume(CarlaHostHandle handle, uint pluginId, float value)

  2036. {

  2037.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2038. 

  2039.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2040.         plugin->setVolume(value, true, false);

  2041. }

  2042. 

  2043. void carla_set_balance_left(CarlaHostHandle handle, uint pluginId, float value)

  2044. {

  2045.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2046. 

  2047.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2048.         plugin->setBalanceLeft(value, true, false);

  2049. }

  2050. 

  2051. void carla_set_balance_right(CarlaHostHandle handle, uint pluginId, float value)

  2052. {

  2053.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2054. 

  2055.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2056.         plugin->setBalanceRight(value, true, false);

  2057. }

  2058. 

  2059. void carla_set_panning(CarlaHostHandle handle, uint pluginId, float value)

  2060. {

  2061.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2062. 

  2063.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2064.         plugin->setPanning(value, true, false);

  2065. }

  2066. 

  2067. void carla_set_ctrl_channel(CarlaHostHandle handle, uint pluginId, int8_t channel)

  2068. {

  2069.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2070.     CARLA_SAFE_ASSERT_RETURN(channel >= -1 && channel < MAX_MIDI_CHANNELS,);

  2071. 

  2072.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2073.         plugin->setCtrlChannel(channel, true, false);

  2074. }

  2075. #endif

  2076. 

  2077. void carla_set_option(CarlaHostHandle handle, uint pluginId, uint option, bool yesNo)

  2078. {

  2079.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2080. 

  2081.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2082.         plugin->setOption(option, yesNo, false);

  2083. }

  2084. 

  2085. // --------------------------------------------------------------------------------------------------------------------

  2086. 

  2087. void carla_set_parameter_value(CarlaHostHandle handle, uint pluginId, uint32_t parameterId, float value)

  2088. {

  2089.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2090. 

  2091.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2092.     {

  2093.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(),);

  2094. 

  2095.         plugin->setParameterValue(parameterId, value, true, true, false);

  2096.     }

  2097. }

  2098. 

  2099. #ifndef BUILD_BRIDGE

  2100. 

  2101. void carla_set_parameter_midi_channel(CarlaHostHandle handle, uint pluginId, uint32_t parameterId, uint8_t channel)

  2102. {

  2103.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2104.     CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  2105. 

  2106.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2107.     {

  2108.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(),);

  2109. 

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

  2111.     }

  2112. }

  2113. 

  2114. void carla_set_parameter_mapped_control_index(CarlaHostHandle handle, uint pluginId, uint32_t parameterId, int16_t index)

  2115. {

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

  2117.     CARLA_SAFE_ASSERT_RETURN(index >= CB::CONTROL_INDEX_NONE && index <= CB::CONTROL_INDEX_MAX_ALLOWED,);

  2118. 

  2119.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2120.     {

  2121.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(),);

  2122. 

  2123.         plugin->setParameterMappedControlIndex(parameterId, index, true, false, true);

  2124.     }

  2125. }

  2126. 

  2127. void carla_set_parameter_mapped_range(CarlaHostHandle handle, uint pluginId, uint32_t parameterId, float minimum, float maximum)

  2128. {

  2129.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2130. 

  2131.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2132.     {

  2133.         CARLA_SAFE_ASSERT_RETURN(parameterId < plugin->getParameterCount(),);

  2134. 

  2135.         plugin->setParameterMappedRange(parameterId, minimum, maximum, true, false);

  2136.     }

  2137. }

  2138. 

  2139. void carla_set_parameter_touch(CarlaHostHandle handle, uint pluginId, uint32_t parameterId, bool touch)

  2140. {

  2141.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2142. 

  2143.     carla_debug("carla_set_parameter_touch(%p, %i, %i, %s)", handle, pluginId, parameterId, bool2str(touch));

  2144.     return handle->engine->touchPluginParameter(pluginId, parameterId, touch);

  2145. }

  2146. #endif

  2147. 

  2148. // --------------------------------------------------------------------------------------------------------------------

  2149. 

  2150. void carla_set_program(CarlaHostHandle handle, uint pluginId, uint32_t programId)

  2151. {

  2152.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2153. 

  2154.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2155.     {

  2156.         CARLA_SAFE_ASSERT_RETURN(programId < plugin->getProgramCount(),);

  2157. 

  2158.         plugin->setProgram(static_cast<int32_t>(programId), true, true, false);

  2159.     }

  2160. }

  2161. 

  2162. void carla_set_midi_program(CarlaHostHandle handle, uint pluginId, uint32_t midiProgramId)

  2163. {

  2164.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2165. 

  2166.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2167.     {

  2168.         CARLA_SAFE_ASSERT_RETURN(midiProgramId < plugin->getMidiProgramCount(),);

  2169. 

  2170.         plugin->setMidiProgram(static_cast<int32_t>(midiProgramId), true, true, false);

  2171.     }

  2172. }

  2173. 

  2174. // --------------------------------------------------------------------------------------------------------------------

  2175. 

  2176. void carla_set_custom_data(CarlaHostHandle handle, uint pluginId, const char* type, const char* key, const char* value)

  2177. {

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

  2179.     CARLA_SAFE_ASSERT_RETURN(type != nullptr && type[0] != '\0',);

  2180.     CARLA_SAFE_ASSERT_RETURN(key != nullptr && key[0] != '\0',);

  2181.     CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

  2182. 

  2183.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2184.         plugin->setCustomData(type, key, value, true);

  2185. }

  2186. 

  2187. void carla_set_chunk_data(CarlaHostHandle handle, uint pluginId, const char* chunkData)

  2188. {

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

  2190.     CARLA_SAFE_ASSERT_RETURN(chunkData != nullptr && chunkData[0] != '\0',);

  2191. 

  2192.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2193.     {

  2194.         CARLA_SAFE_ASSERT_RETURN(plugin->getOptionsEnabled() & CB::PLUGIN_OPTION_USE_CHUNKS,);

  2195. 

  2196.         std::vector<uint8_t> chunk(carla_getChunkFromBase64String(chunkData));

  2197. #ifdef CARLA_PROPER_CPP11_SUPPORT

  2198.         plugin->setChunkData(chunk.data(), chunk.size());

  2199. #else

  2200.         plugin->setChunkData(&chunk.front(), chunk.size());

  2201. #endif

  2202.     }

  2203. }

  2204. 

  2205. // --------------------------------------------------------------------------------------------------------------------

  2206. 

  2207. void carla_prepare_for_save(CarlaHostHandle handle, uint pluginId)

  2208. {

  2209.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2210. 

  2211.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2212.         plugin->prepareForSave(false);

  2213. }

  2214. 

  2215. void carla_reset_parameters(CarlaHostHandle handle, uint pluginId)

  2216. {

  2217.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2218. 

  2219.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2220.         plugin->resetParameters();

  2221. }

  2222. 

  2223. void carla_randomize_parameters(CarlaHostHandle handle, uint pluginId)

  2224. {

  2225.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2226. 

  2227.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2228.         plugin->randomizeParameters();

  2229. }

  2230. 

  2231. #ifndef BUILD_BRIDGE

  2232. void carla_send_midi_note(CarlaHostHandle handle, uint pluginId, uint8_t channel, uint8_t note, uint8_t velocity)

  2233. {

  2234.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr && handle->engine->isRunning(),);

  2235. 

  2236.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2237.         plugin->sendMidiSingleNote(channel, note, velocity, true, true, false);

  2238. }

  2239. #endif

  2240. 

  2241. void carla_set_custom_ui_title(CarlaHostHandle handle, uint pluginId, const char* title)

  2242. {

  2243.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2244.     CARLA_SAFE_ASSERT_RETURN(title != nullptr,);

  2245. 

  2246.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2247.         plugin->setCustomUITitle(title);

  2248. }

  2249. 

  2250. void carla_show_custom_ui(CarlaHostHandle handle, uint pluginId, bool yesNo)

  2251. {

  2252.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr,);

  2253. 

  2254.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2255.         plugin->showCustomUI(yesNo);

  2256. }

  2257. 

  2258. void* carla_embed_custom_ui(CarlaHostHandle handle, uint pluginId, void* ptr)

  2259. {

  2260.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, nullptr);

  2261. 

  2262.     if (const CarlaPluginPtr plugin = handle->engine->getPlugin(pluginId))

  2263.         return plugin->embedCustomUI(ptr);

  2264. 

  2265.     return nullptr;

  2266. }

  2267. 

  2268. // --------------------------------------------------------------------------------------------------------------------

  2269. 

  2270. uint32_t carla_get_buffer_size(CarlaHostHandle handle)

  2271. {

  2272.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0);

  2273. 

  2274.     carla_debug("carla_get_buffer_size(%p)", handle);

  2275.     return handle->engine->getBufferSize();

  2276. }

  2277. 

  2278. double carla_get_sample_rate(CarlaHostHandle handle)

  2279. {

  2280.     CARLA_SAFE_ASSERT_RETURN(handle->engine != nullptr, 0.0);

  2281. 

  2282.     carla_debug("carla_get_sample_rate(%p)", handle);

  2283.     return handle->engine->getSampleRate();

  2284. }

  2285. 

  2286. // --------------------------------------------------------------------------------------------------------------------

  2287. 

  2288. const char* carla_get_last_error(CarlaHostHandle handle)

  2289. {

  2290.     carla_debug("carla_get_last_error(%p)", handle);

  2291. 

  2292.     if (handle->engine != nullptr)

  2293.         return handle->engine->getLastError();

  2294. 

  2295.     return handle->isStandalone

  2296.            ? ((CarlaHostStandalone*)handle)->lastError.buffer()

  2297.            : gNullCharPtr;

  2298. }

  2299. 

  2300. const char* carla_get_host_osc_url_tcp(CarlaHostHandle handle)

  2301. {

  2302.     carla_debug("carla_get_host_osc_url_tcp(%p)", handle);

  2303. 

  2304. #if defined(HAVE_LIBLO) && !defined(BUILD_BRIDGE)

  2305.     if (handle->engine == nullptr)

  2306.     {

  2307.         carla_stderr2("carla_get_host_osc_url_tcp() failed, engine is not running");

  2308.         if (handle->isStandalone)

  2309.             ((CarlaHostStandalone*)handle)->lastError = "Engine is not running";

  2310.         return gNullCharPtr;

  2311.     }

  2312. 

  2313.     const char* const path = handle->engine->getOscServerPathTCP();

  2314. 

  2315.     if (path != nullptr && path[0] != '\0')

  2316.         return path;

  2317. 

  2318.     static const char* const notAvailable = "(OSC TCP port not available)";

  2319.     return notAvailable;

  2320. #else

  2321.     return "(OSC support not available in this build)";

  2322. 

  2323.     // unused

  2324.     (void)handle;

  2325. #endif

  2326. }

  2327. 

  2328. const char* carla_get_host_osc_url_udp(CarlaHostHandle handle)

  2329. {

  2330.     carla_debug("carla_get_host_osc_url_udp(%p)", handle);

  2331. 

  2332. #if defined(HAVE_LIBLO) && !defined(BUILD_BRIDGE)

  2333.     if (handle->engine == nullptr)

  2334.     {

  2335.         carla_stderr2("carla_get_host_osc_url_udp() failed, engine is not running");

  2336.         if (handle->isStandalone)

  2337.             ((CarlaHostStandalone*)handle)->lastError = "Engine is not running";

  2338.         return gNullCharPtr;

  2339.     }

  2340. 

  2341.     const char* const path = handle->engine->getOscServerPathUDP();

  2342. 

  2343.     if (path != nullptr && path[0] != '\0')

  2344.         return path;

  2345. 

  2346.     static const char* const notAvailable = "(OSC UDP port not available)";

  2347.     return notAvailable;

  2348. #else

  2349.     return "(OSC support not available in this build)";

  2350. 

  2351.     // unused

  2352.     (void)handle;

  2353. #endif

  2354. }

  2355. 

  2356. // --------------------------------------------------------------------------------------------------------------------

  2357. 

  2358. #ifndef CARLA_PLUGIN_EXPORT

  2359. # define CARLA_PLUGIN_UI_CLASS_PREFIX Standalone

  2360. # include "CarlaPluginUI.cpp"

  2361. # undef CARLA_PLUGIN_UI_CLASS_PREFIX

  2362. # include "CarlaDssiUtils.cpp"

  2363. # include "CarlaMacUtils.cpp"

  2364. # include "CarlaPatchbayUtils.cpp"

  2365. # include "CarlaPipeUtils.cpp"

  2366. # include "CarlaProcessUtils.cpp"

  2367. # include "CarlaStateUtils.cpp"

  2368. # include "utils/Information.cpp"

  2369. #endif /* CARLA_PLUGIN_EXPORT */

  2370. 

  2371. // --------------------------------------------------------------------------------------------------------------------