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

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  1. /*

  2.  * Carla Plugin Host

  3.  * Copyright (C) 2011-2018 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.  * - complete processRack(): carefully add to input, sorted events

  20.  * - implement processPatchbay()

  21.  * - implement oscSend_control_switch_plugins()

  22.  * - something about the peaks?

  23.  */

  24. 

  25. #include "CarlaEngineInternal.hpp"

  26. #include "CarlaPlugin.hpp"

  27. 

  28. #include "CarlaBackendUtils.hpp"

  29. #include "CarlaBinaryUtils.hpp"

  30. #include "CarlaEngineUtils.hpp"

  31. #include "CarlaMathUtils.hpp"

  32. #include "CarlaPipeUtils.hpp"

  33. #include "CarlaStateUtils.hpp"

  34. #include "CarlaMIDI.h"

  35. 

  36. #include "jackbridge/JackBridge.hpp"

  37. 

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

  39. #include "water/streams/MemoryOutputStream.h"

  40. #include "water/xml/XmlDocument.h"

  41. #include "water/xml/XmlElement.h"

  42. 

  43. // FIXME Remove on 2.1 release

  44. #include "lv2/atom.h"

  45. 

  46. using water::Array;

  47. using water::CharPointer_UTF8;

  48. using water::File;

  49. using water::MemoryOutputStream;

  50. using water::String;

  51. using water::StringArray;

  52. using water::XmlDocument;

  53. using water::XmlElement;

  54. 

  55. CARLA_BACKEND_START_NAMESPACE

  56. 

  57. // -----------------------------------------------------------------------

  58. // Carla Engine

  59. 

  60. CarlaEngine::CarlaEngine()

  61.     : pData(new ProtectedData(this))

  62. {

  63.     carla_debug("CarlaEngine::CarlaEngine()");

  64. }

  65. 

  66. CarlaEngine::~CarlaEngine()

  67. {

  68.     carla_debug("CarlaEngine::~CarlaEngine()");

  69. 

  70.     delete pData;

  71. }

  72. 

  73. // -----------------------------------------------------------------------

  74. // Static calls

  75. 

  76. uint CarlaEngine::getDriverCount()

  77. {

  78.     carla_debug("CarlaEngine::getDriverCount()");

  79. 

  80.     uint count = 0;

  81. 

  82.     if (jackbridge_is_ok())

  83.         count += 1;

  84. 

  85. #ifndef BUILD_BRIDGE

  86. # ifdef USING_JUCE

  87.     count += getJuceApiCount();

  88. # else

  89.     count += getRtAudioApiCount();

  90. # endif

  91. #endif

  92. 

  93.     return count;

  94. }

  95. 

  96. const char* CarlaEngine::getDriverName(const uint index2)

  97. {

  98.     carla_debug("CarlaEngine::getDriverName(%i)", index2);

  99. 

  100.     uint index = index2;

  101. 

  102.     if (jackbridge_is_ok() && index-- == 0)

  103.         return "JACK";

  104. 

  105. #ifndef BUILD_BRIDGE

  106. # ifdef USING_JUCE

  107.     if (const uint count = getJuceApiCount())

  108.     {

  109.         if (index < count)

  110.             return getJuceApiName(index);

  111.         index -= count;

  112.     }

  113. # else

  114.     if (const uint count = getRtAudioApiCount())

  115.     {

  116.         if (index < count)

  117.             return getRtAudioApiName(index);

  118.     }

  119. # endif

  120. #endif

  121. 

  122.     carla_stderr("CarlaEngine::getDriverName(%i) - invalid index", index2);

  123.     return nullptr;

  124. }

  125. 

  126. const char* const* CarlaEngine::getDriverDeviceNames(const uint index2)

  127. {

  128.     carla_debug("CarlaEngine::getDriverDeviceNames(%i)", index2);

  129. 

  130.     uint index = index2;

  131. 

  132.     if (jackbridge_is_ok() && index-- == 0)

  133.     {

  134.         static const char* ret[3] = { "Auto-Connect ON", "Auto-Connect OFF", nullptr };

  135.         return ret;

  136.     }

  137. 

  138. #ifndef BUILD_BRIDGE

  139. # ifdef USING_JUCE

  140.     if (const uint count = getJuceApiCount())

  141.     {

  142.         if (index < count)

  143.             return getJuceApiDeviceNames(index);

  144.         index -= count;

  145.     }

  146. # else

  147.     if (const uint count = getRtAudioApiCount())

  148.     {

  149.         if (index < count)

  150.             return getRtAudioApiDeviceNames(index);

  151.     }

  152. # endif

  153. #endif

  154. 

  155.     carla_stderr("CarlaEngine::getDriverDeviceNames(%i) - invalid index", index2);

  156.     return nullptr;

  157. }

  158. 

  159. const EngineDriverDeviceInfo* CarlaEngine::getDriverDeviceInfo(const uint index2, const char* const deviceName)

  160. {

  161.     carla_debug("CarlaEngine::getDriverDeviceInfo(%i, \"%s\")", index2, deviceName);

  162. 

  163.     uint index = index2;

  164. 

  165.     if (jackbridge_is_ok() && index-- == 0)

  166.     {

  167.         static EngineDriverDeviceInfo devInfo;

  168.         devInfo.hints       = ENGINE_DRIVER_DEVICE_VARIABLE_BUFFER_SIZE;

  169.         devInfo.bufferSizes = nullptr;

  170.         devInfo.sampleRates = nullptr;

  171.         return &devInfo;

  172.     }

  173. 

  174. #ifndef BUILD_BRIDGE

  175. # ifdef USING_JUCE

  176.     if (const uint count = getJuceApiCount())

  177.     {

  178.         if (index < count)

  179.             return getJuceDeviceInfo(index, deviceName);

  180.         index -= count;

  181.     }

  182. # else

  183.     if (const uint count = getRtAudioApiCount())

  184.     {

  185.         if (index < count)

  186.             return getRtAudioDeviceInfo(index, deviceName);

  187.     }

  188. # endif

  189. #endif

  190. 

  191.     carla_stderr("CarlaEngine::getDriverDeviceNames(%i, \"%s\") - invalid index", index2, deviceName);

  192.     return nullptr;

  193. }

  194. 

  195. CarlaEngine* CarlaEngine::newDriverByName(const char* const driverName)

  196. {

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

  198.     carla_debug("CarlaEngine::newDriverByName(\"%s\")", driverName);

  199. 

  200.     if (std::strcmp(driverName, "JACK") == 0)

  201.         return newJack();

  202. 

  203. #ifndef BUILD_BRIDGE

  204. # ifdef USING_JUCE

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

  206.     // linux

  207. 

  208.     if (std::strcmp(driverName, "ALSA") == 0)

  209.         return newJuce(AUDIO_API_ALSA);

  210. 

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

  212.     // macos

  213. 

  214.     if (std::strcmp(driverName, "CoreAudio") == 0)

  215.         return newJuce(AUDIO_API_COREAUDIO);

  216. 

  217.     // -------------------------------------------------------------------

  218.     // windows

  219. 

  220.     if (std::strcmp(driverName, "ASIO") == 0)

  221.         return newJuce(AUDIO_API_ASIO);

  222.     if (std::strcmp(driverName, "DirectSound") == 0)

  223.         return newJuce(AUDIO_API_DIRECTSOUND);

  224. # else

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

  226.     // common

  227. 

  228.     if (std::strcmp(driverName, "Dummy") == 0)

  229.         return newRtAudio(AUDIO_API_NULL);

  230.     if (std::strncmp(driverName, "JACK ", 5) == 0)

  231.         return newRtAudio(AUDIO_API_JACK);

  232.     if (std::strcmp(driverName, "OSS") == 0)

  233.         return newRtAudio(AUDIO_API_OSS);

  234. 

  235.     // -------------------------------------------------------------------

  236.     // linux

  237. 

  238.     if (std::strcmp(driverName, "ALSA") == 0)

  239.         return newRtAudio(AUDIO_API_ALSA);

  240.     if (std::strcmp(driverName, "PulseAudio") == 0)

  241.         return newRtAudio(AUDIO_API_PULSEAUDIO);

  242. 

  243.     // -------------------------------------------------------------------

  244.     // macos

  245. 

  246.     if (std::strcmp(driverName, "CoreAudio") == 0)

  247.         return newRtAudio(AUDIO_API_COREAUDIO);

  248. 

  249.     // -------------------------------------------------------------------

  250.     // windows

  251. 

  252.     if (std::strcmp(driverName, "ASIO") == 0)

  253.         return newRtAudio(AUDIO_API_ASIO);

  254.     if (std::strcmp(driverName, "DirectSound") == 0)

  255.         return newRtAudio(AUDIO_API_DIRECTSOUND);

  256.     if (std::strcmp(driverName, "WASAPI") == 0)

  257.         return newRtAudio(AUDIO_API_WASAPI);

  258. # endif

  259. #endif

  260. 

  261.     carla_stderr("CarlaEngine::newDriverByName(\"%s\") - invalid driver name", driverName);

  262.     return nullptr;

  263. }

  264. 

  265. // -----------------------------------------------------------------------

  266. // Constant values

  267. 

  268. uint CarlaEngine::getMaxClientNameSize() const noexcept

  269. {

  270.     return STR_MAX/2;

  271. }

  272. 

  273. uint CarlaEngine::getMaxPortNameSize() const noexcept

  274. {

  275.     return STR_MAX;

  276. }

  277. 

  278. uint CarlaEngine::getCurrentPluginCount() const noexcept

  279. {

  280.     return pData->curPluginCount;

  281. }

  282. 

  283. uint CarlaEngine::getMaxPluginNumber() const noexcept

  284. {

  285.     return pData->maxPluginNumber;

  286. }

  287. 

  288. // -----------------------------------------------------------------------

  289. // Virtual, per-engine type calls

  290. 

  291. bool CarlaEngine::close()

  292. {

  293.     carla_debug("CarlaEngine::close()");

  294. 

  295.     if (pData->curPluginCount != 0)

  296.     {

  297.         pData->aboutToClose = true;

  298.         removeAllPlugins();

  299.     }

  300. 

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

  302.     if (pData->osc.isControlRegistered())

  303.         oscSend_control_exit();

  304. #endif

  305. 

  306.     pData->close();

  307. 

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

  309.     return true;

  310. }

  311. 

  312. bool CarlaEngine::usesConstantBufferSize() const noexcept

  313. {

  314.     return true;

  315. }

  316. 

  317. void CarlaEngine::idle() noexcept

  318. {

  319.     CARLA_SAFE_ASSERT_RETURN(pData->nextAction.opcode == kEnginePostActionNull,);

  320.     CARLA_SAFE_ASSERT_RETURN(pData->nextPluginId == pData->maxPluginNumber,);

  321.     CARLA_SAFE_ASSERT_RETURN(getType() != kEngineTypePlugin,);

  322. 

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

  324.     {

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

  326. 

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

  328.         {

  329.             const uint hints(plugin->getHints());

  330. 

  331.             if ((hints & PLUGIN_HAS_CUSTOM_UI) != 0 && (hints & PLUGIN_NEEDS_UI_MAIN_THREAD) != 0)

  332.             {

  333.                 try {

  334.                     plugin->uiIdle();

  335.                 } CARLA_SAFE_EXCEPTION_CONTINUE("Plugin uiIdle");

  336.             }

  337.         }

  338.     }

  339. 

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

  341.     pData->osc.idle();

  342. #endif

  343. }

  344. 

  345. CarlaEngineClient* CarlaEngine::addClient(CarlaPlugin* const)

  346. {

  347.     return new CarlaEngineClient(*this);

  348. }

  349. 

  350. // -----------------------------------------------------------------------

  351. // Plugin management

  352. 

  353. bool CarlaEngine::addPlugin(const BinaryType btype, const PluginType ptype,

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

  355.                             const void* const extra, const uint options)

  356. {

  357.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->isIdling == 0, "An operation is still being processed, please wait for it to finish");

  358. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  359.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->plugins != nullptr, "Invalid engine internal data");

  360.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->nextPluginId <= pData->maxPluginNumber, "Invalid engine internal data");

  361. #endif

  362.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->nextAction.opcode == kEnginePostActionNull, "Invalid engine internal data");

  363.     CARLA_SAFE_ASSERT_RETURN_ERR(btype != BINARY_NONE, "Invalid plugin binary mode");

  364.     CARLA_SAFE_ASSERT_RETURN_ERR(ptype != PLUGIN_NONE, "Invalid plugin type");

  365.     CARLA_SAFE_ASSERT_RETURN_ERR((filename != nullptr && filename[0] != '\0') || (label != nullptr && label[0] != '\0'), "Invalid plugin filename and label");

  366.     carla_debug("CarlaEngine::addPlugin(%i:%s, %i:%s, \"%s\", \"%s\", \"%s\", " P_INT64 ", %p, %u)", btype, BinaryType2Str(btype), ptype, PluginType2Str(ptype), filename, name, label, uniqueId, extra, options);

  367. 

  368. #ifndef CARLA_OS_WIN

  369.     if (ptype != PLUGIN_JACK && filename != nullptr && filename[0] != '\0') {

  370.         CARLA_SAFE_ASSERT_RETURN_ERR(filename[0] == CARLA_OS_SEP || filename[0] == '.' || filename[0] == '~', "Invalid plugin filename");

  371.     }

  372. #endif

  373. 

  374.     uint id;

  375. 

  376. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  377.     CarlaPlugin* oldPlugin = nullptr;

  378. 

  379.     if (pData->nextPluginId < pData->curPluginCount)

  380.     {

  381.         id = pData->nextPluginId;

  382.         pData->nextPluginId = pData->maxPluginNumber;

  383. 

  384.         oldPlugin = pData->plugins[id].plugin;

  385. 

  386.         CARLA_SAFE_ASSERT_RETURN_ERR(oldPlugin != nullptr, "Invalid replace plugin Id");

  387.     }

  388.     else

  389. #endif

  390.     {

  391.         id = pData->curPluginCount;

  392. 

  393.         if (id == pData->maxPluginNumber)

  394.         {

  395.             setLastError("Maximum number of plugins reached");

  396.             return false;

  397.         }

  398. 

  399. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  400.         CARLA_SAFE_ASSERT_RETURN_ERR(pData->plugins[id].plugin == nullptr, "Invalid engine internal data");

  401. #endif

  402.     }

  403. 

  404.     CarlaPlugin::Initializer initializer = {

  405.         this,

  406.         id,

  407.         filename,

  408.         name,

  409.         label,

  410.         uniqueId,

  411.         options

  412.     };

  413. 

  414.     CarlaPlugin* plugin = nullptr;

  415.     CarlaString bridgeBinary(pData->options.binaryDir);

  416. 

  417.     if (bridgeBinary.isNotEmpty())

  418.     {

  419. #ifndef CARLA_OS_WIN

  420.         if (btype == BINARY_NATIVE)

  421.         {

  422.             bridgeBinary += CARLA_OS_SEP_STR "carla-bridge-native";

  423.         }

  424.         else

  425. #endif

  426.         {

  427.             switch (btype)

  428.             {

  429.             case BINARY_POSIX32:

  430.                 bridgeBinary += CARLA_OS_SEP_STR "carla-bridge-posix32";

  431.                 break;

  432.             case BINARY_POSIX64:

  433.                 bridgeBinary += CARLA_OS_SEP_STR "carla-bridge-posix64";

  434.                 break;

  435.             case BINARY_WIN32:

  436.                 bridgeBinary += CARLA_OS_SEP_STR "carla-bridge-win32.exe";

  437.                 break;

  438.             case BINARY_WIN64:

  439.                 bridgeBinary += CARLA_OS_SEP_STR "carla-bridge-win64.exe";

  440.                 break;

  441.             default:

  442.                 bridgeBinary.clear();

  443.                 break;

  444.             }

  445.         }

  446. 

  447.         if (! File(bridgeBinary.buffer()).existsAsFile())

  448.             bridgeBinary.clear();

  449.     }

  450. 

  451.     // Prefer bridges for some specific plugins

  452.     const bool preferBridges = pData->options.preferPluginBridges;

  453. 

  454. #if 0 // ndef BUILD_BRIDGE

  455.     if (! preferBridges)

  456.     {

  457.         if (ptype == PLUGIN_LV2 && label != nullptr)

  458.         {

  459.             if (std::strncmp(label, "http://calf.sourceforge.net/plugins/", 36) == 0 ||

  460.                 std::strcmp(label, "http://factorial.hu/plugins/lv2/ir") == 0 ||

  461.                 std::strstr(label, "v1.sourceforge.net/lv2") != nullptr)

  462.             {

  463.                 preferBridges = true;

  464.             }

  465.         }

  466.     }

  467. #endif // ! BUILD_BRIDGE

  468. 

  469.     const bool canBeBridged = ptype != PLUGIN_INTERNAL

  470.                            && ptype != PLUGIN_SF2

  471.                            && ptype != PLUGIN_SFZ

  472.                            && ptype != PLUGIN_JACK;

  473. 

  474.     if (canBeBridged && (btype != BINARY_NATIVE || (preferBridges && bridgeBinary.isNotEmpty())))

  475.     {

  476.         if (bridgeBinary.isNotEmpty())

  477.         {

  478.             plugin = CarlaPlugin::newBridge(initializer, btype, ptype, bridgeBinary);

  479.         }

  480.         else

  481.         {

  482.             setLastError("This Carla build cannot handle this binary");

  483.             return false;

  484.         }

  485.     }

  486.     else

  487.     {

  488. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  489.         bool use16Outs;

  490. #endif

  491.         setLastError("Invalid or unsupported plugin type");

  492. 

  493.         switch (ptype)

  494.         {

  495.         case PLUGIN_NONE:

  496.             break;

  497. 

  498.         case PLUGIN_LADSPA:

  499.             plugin = CarlaPlugin::newLADSPA(initializer, (const LADSPA_RDF_Descriptor*)extra);

  500.             break;

  501. 

  502.         case PLUGIN_DSSI:

  503.             plugin = CarlaPlugin::newDSSI(initializer);

  504.             break;

  505. 

  506.         case PLUGIN_LV2:

  507.             plugin = CarlaPlugin::newLV2(initializer);

  508.             break;

  509. 

  510.         case PLUGIN_VST2:

  511.             plugin = CarlaPlugin::newVST2(initializer);

  512.             break;

  513. 

  514.         case PLUGIN_VST3:

  515.             plugin = CarlaPlugin::newVST3(initializer);

  516.             break;

  517. 

  518.         case PLUGIN_AU:

  519.             plugin = CarlaPlugin::newAU(initializer);

  520.             break;

  521. 

  522. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  523.         case PLUGIN_INTERNAL:

  524.             plugin = CarlaPlugin::newNative(initializer);

  525.             break;

  526. 

  527.         case PLUGIN_SF2:

  528.             use16Outs = (extra != nullptr && std::strcmp((const char*)extra, "true") == 0);

  529.             plugin = CarlaPlugin::newFluidSynth(initializer, use16Outs);

  530.             break;

  531. 

  532.         case PLUGIN_SFZ:

  533.             plugin = CarlaPlugin::newSFZero(initializer);

  534.             break;

  535. 

  536.         case PLUGIN_JACK:

  537.             plugin = CarlaPlugin::newJackApp(initializer);

  538.             break;

  539. #else

  540.         case PLUGIN_INTERNAL:

  541.         case PLUGIN_SF2:

  542.         case PLUGIN_SFZ:

  543.         case PLUGIN_JACK:

  544.             setLastError("Plugin bridges cannot handle this binary");

  545.             break;

  546. #endif

  547.         }

  548.     }

  549. 

  550.     if (plugin == nullptr)

  551.         return false;

  552. 

  553.     plugin->reload();

  554. 

  555.     bool canRun = true;

  556. 

  557.     /**/ if (pData->options.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK)

  558.     {

  559.         if (plugin->getCVInCount() > 0 || plugin->getCVInCount() > 0)

  560.         {

  561.             setLastError("Carla's rack mode cannot work with plugins that have CV ports, sorry!");

  562.             canRun = false;

  563.         }

  564.     }

  565.     else if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  566.     {

  567.         /**/ if (plugin->getMidiInCount() > 1 || plugin->getMidiOutCount() > 1)

  568.         {

  569.             setLastError("Carla's patchbay mode cannot work with plugins that have multiple MIDI ports, sorry!");

  570.             canRun = false;

  571.         }

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

  573.         {

  574.             setLastError("CV ports in patchbay mode is still TODO");

  575.             canRun = false;

  576.         }

  577.     }

  578. 

  579.     if (! canRun)

  580.     {

  581.         delete plugin;

  582.         return false;

  583.     }

  584. 

  585.     EnginePluginData& pluginData(pData->plugins[id]);

  586.     pluginData.plugin = plugin;

  587.     carla_zeroFloats(pluginData.peaks, 4);

  588. 

  589. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  590.     if (oldPlugin != nullptr)

  591.     {

  592.         CARLA_SAFE_ASSERT(! pData->loadingProject);

  593. 

  594.         const ScopedThreadStopper sts(this);

  595. 

  596.         if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  597.             pData->graph.replacePlugin(oldPlugin, plugin);

  598. 

  599.         const bool  wasActive = oldPlugin->getInternalParameterValue(PARAMETER_ACTIVE) >= 0.5f;

  600.         const float oldDryWet = oldPlugin->getInternalParameterValue(PARAMETER_DRYWET);

  601.         const float oldVolume = oldPlugin->getInternalParameterValue(PARAMETER_VOLUME);

  602. 

  603.         delete oldPlugin;

  604. 

  605.         if (plugin->getHints() & PLUGIN_CAN_DRYWET)

  606.             plugin->setDryWet(oldDryWet, true, true);

  607. 

  608.         if (plugin->getHints() & PLUGIN_CAN_VOLUME)

  609.             plugin->setVolume(oldVolume, true, true);

  610. 

  611.         plugin->setActive(wasActive, true, true);

  612.         plugin->setEnabled(true);

  613. 

  614.         callback(ENGINE_CALLBACK_RELOAD_ALL, id, 0, 0, 0.0f, nullptr);

  615.     }

  616.     else if (! pData->loadingProject)

  617. #endif

  618.     {

  619.         plugin->setEnabled(true);

  620. 

  621.         ++pData->curPluginCount;

  622.         callback(ENGINE_CALLBACK_PLUGIN_ADDED, id, 0, 0, 0.0f, plugin->getName());

  623. 

  624.         if (getType() != kEngineTypeBridge)

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

  626. 

  627. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  628.         if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  629.             pData->graph.addPlugin(plugin);

  630. #endif

  631.     }

  632. 

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

  634.     plugin->registerToOscClient();

  635. #endif

  636. 

  637.     return true;

  638. }

  639. 

  640. bool CarlaEngine::addPlugin(const PluginType ptype, const char* const filename, const char* const name, const char* const label, const int64_t uniqueId, const void* const extra)

  641. {

  642.     return addPlugin(BINARY_NATIVE, ptype, filename, name, label, uniqueId, extra, 0x0);

  643. }

  644. 

  645. bool CarlaEngine::removePlugin(const uint id)

  646. {

  647.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->isIdling == 0, "An operation is still being processed, please wait for it to finish");

  648. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  649.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->plugins != nullptr, "Invalid engine internal data");

  650.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->curPluginCount != 0, "Invalid engine internal data");

  651. #endif

  652.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->nextAction.opcode == kEnginePostActionNull, "Invalid engine internal data");

  653.     CARLA_SAFE_ASSERT_RETURN_ERR(id < pData->curPluginCount, "Invalid plugin Id");

  654.     carla_debug("CarlaEngine::removePlugin(%i)", id);

  655. 

  656.     CarlaPlugin* const plugin(pData->plugins[id].plugin);

  657. 

  658.     CARLA_SAFE_ASSERT_RETURN_ERR(plugin != nullptr, "Could not find plugin to remove");

  659.     CARLA_SAFE_ASSERT_RETURN_ERR(plugin->getId() == id, "Invalid engine internal data");

  660. 

  661.     const ScopedThreadStopper sts(this);

  662. 

  663. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  664.     if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  665.         pData->graph.removePlugin(plugin);

  666. 

  667.     const ScopedActionLock sal(this, kEnginePostActionRemovePlugin, id, 0);

  668. 

  669.     /*

  670.     for (uint i=id; i < pData->curPluginCount; ++i)

  671.     {

  672.         CarlaPlugin* const plugin2(pData->plugins[i].plugin);

  673.         CARLA_SAFE_ASSERT_BREAK(plugin2 != nullptr);

  674.         plugin2->updateOscURL();

  675.     }

  676.     */

  677. 

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

  679.     if (isOscControlRegistered())

  680.         oscSend_control_remove_plugin(id);

  681. # endif

  682. #else

  683.     pData->curPluginCount = 0;

  684.     carla_zeroStructs(pData->plugins, 1);

  685. #endif

  686. 

  687.     delete plugin;

  688. 

  689.     callback(ENGINE_CALLBACK_PLUGIN_REMOVED, id, 0, 0, 0.0f, nullptr);

  690.     return true;

  691. }

  692. 

  693. bool CarlaEngine::removeAllPlugins()

  694. {

  695.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->isIdling == 0, "An operation is still being processed, please wait for it to finish");

  696. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  697.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->plugins != nullptr, "Invalid engine internal data");

  698.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->nextPluginId == pData->maxPluginNumber, "Invalid engine internal data");

  699. #endif

  700.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->nextAction.opcode == kEnginePostActionNull, "Invalid engine internal data");

  701.     carla_debug("CarlaEngine::removeAllPlugins()");

  702. 

  703.     if (pData->curPluginCount == 0)

  704.         return true;

  705. 

  706.     const ScopedThreadStopper sts(this);

  707. 

  708.     const uint curPluginCount(pData->curPluginCount);

  709. 

  710. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  711.     if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  712.         pData->graph.removeAllPlugins();

  713. 

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

  715.     if (isOscControlRegistered())

  716.     {

  717.         for (uint i=0; i < curPluginCount; ++i)

  718.             oscSend_control_remove_plugin(curPluginCount-i-1);

  719.     }

  720. # endif

  721. #endif

  722. 

  723.     const ScopedActionLock sal(this, kEnginePostActionZeroCount, 0, 0);

  724. 

  725.     callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  726. 

  727.     for (uint i=0; i < curPluginCount; ++i)

  728.     {

  729.         EnginePluginData& pluginData(pData->plugins[i]);

  730. 

  731.         if (pluginData.plugin != nullptr)

  732.         {

  733.             delete pluginData.plugin;

  734.             pluginData.plugin = nullptr;

  735.         }

  736. 

  737.         carla_zeroFloats(pluginData.peaks, 4);

  738.         callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  739.     }

  740. 

  741.     return true;

  742. }

  743. 

  744. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  745. const char* CarlaEngine::renamePlugin(const uint id, const char* const newName)

  746. {

  747.     CARLA_SAFE_ASSERT_RETURN_ERRN(pData->isIdling == 0, "An operation is still being processed, please wait for it to finish");

  748.     CARLA_SAFE_ASSERT_RETURN_ERRN(pData->plugins != nullptr, "Invalid engine internal data");

  749.     CARLA_SAFE_ASSERT_RETURN_ERRN(pData->curPluginCount != 0, "Invalid engine internal data");

  750.     CARLA_SAFE_ASSERT_RETURN_ERRN(pData->nextAction.opcode == kEnginePostActionNull, "Invalid engine internal data");

  751.     CARLA_SAFE_ASSERT_RETURN_ERRN(id < pData->curPluginCount, "Invalid plugin Id");

  752.     CARLA_SAFE_ASSERT_RETURN_ERRN(newName != nullptr && newName[0] != '\0', "Invalid plugin name");

  753.     carla_debug("CarlaEngine::renamePlugin(%i, \"%s\")", id, newName);

  754. 

  755.     CarlaPlugin* const plugin(pData->plugins[id].plugin);

  756.     CARLA_SAFE_ASSERT_RETURN_ERRN(plugin != nullptr, "Could not find plugin to rename");

  757.     CARLA_SAFE_ASSERT_RETURN_ERRN(plugin->getId() == id, "Invalid engine internal data");

  758. 

  759.     const char* const uniqueName(getUniquePluginName(newName));

  760.     CARLA_SAFE_ASSERT_RETURN_ERRN(uniqueName != nullptr, "Unable to get new unique plugin name");

  761. 

  762.     plugin->setName(uniqueName);

  763. 

  764.     if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  765.         pData->graph.renamePlugin(plugin, uniqueName);

  766. 

  767.     delete[] uniqueName;

  768.     return plugin->getName();

  769. }

  770. 

  771. bool CarlaEngine::clonePlugin(const uint id)

  772. {

  773.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->isIdling == 0, "An operation is still being processed, please wait for it to finish");

  774.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->plugins != nullptr, "Invalid engine internal data");

  775.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->curPluginCount != 0, "Invalid engine internal data");

  776.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->nextAction.opcode == kEnginePostActionNull, "Invalid engine internal data");

  777.     CARLA_SAFE_ASSERT_RETURN_ERR(id < pData->curPluginCount, "Invalid plugin Id");

  778.     carla_debug("CarlaEngine::clonePlugin(%i)", id);

  779. 

  780.     CarlaPlugin* const plugin(pData->plugins[id].plugin);

  781. 

  782.     CARLA_SAFE_ASSERT_RETURN_ERR(plugin != nullptr, "Could not find plugin to clone");

  783.     CARLA_SAFE_ASSERT_RETURN_ERR(plugin->getId() == id, "Invalid engine internal data");

  784. 

  785.     char label[STR_MAX+1];

  786.     carla_zeroChars(label, STR_MAX+1);

  787.     plugin->getLabel(label);

  788. 

  789.     const uint pluginCountBefore(pData->curPluginCount);

  790. 

  791.     if (! addPlugin(plugin->getBinaryType(), plugin->getType(),

  792.                     plugin->getFilename(), plugin->getName(), label, plugin->getUniqueId(),

  793.                     plugin->getExtraStuff(), plugin->getOptionsEnabled()))

  794.         return false;

  795. 

  796.     CARLA_SAFE_ASSERT_RETURN_ERR(pluginCountBefore+1 == pData->curPluginCount, "No new plugin found");

  797. 

  798.     if (CarlaPlugin* const newPlugin = pData->plugins[pluginCountBefore].plugin)

  799.         newPlugin->loadStateSave(plugin->getStateSave());

  800. 

  801.     return true;

  802. }

  803. 

  804. bool CarlaEngine::replacePlugin(const uint id) noexcept

  805. {

  806.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->isIdling == 0, "An operation is still being processed, please wait for it to finish");

  807.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->plugins != nullptr, "Invalid engine internal data");

  808.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->curPluginCount != 0, "Invalid engine internal data");

  809.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->nextAction.opcode == kEnginePostActionNull, "Invalid engine internal data");

  810.     carla_debug("CarlaEngine::replacePlugin(%i)", id);

  811. 

  812.     // might use this to reset

  813.     if (id == pData->maxPluginNumber)

  814.     {

  815.         pData->nextPluginId = pData->maxPluginNumber;

  816.         return true;

  817.     }

  818. 

  819.     CARLA_SAFE_ASSERT_RETURN_ERR(id < pData->curPluginCount, "Invalid plugin Id");

  820. 

  821.     CarlaPlugin* const plugin(pData->plugins[id].plugin);

  822. 

  823.     CARLA_SAFE_ASSERT_RETURN_ERR(plugin != nullptr, "Could not find plugin to replace");

  824.     CARLA_SAFE_ASSERT_RETURN_ERR(plugin->getId() == id, "Invalid engine internal data");

  825. 

  826.     pData->nextPluginId = id;

  827. 

  828.     return true;

  829. }

  830. 

  831. bool CarlaEngine::switchPlugins(const uint idA, const uint idB) noexcept

  832. {

  833.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->isIdling == 0, "An operation is still being processed, please wait for it to finish");

  834.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->plugins != nullptr, "Invalid engine internal data");

  835.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->curPluginCount >= 2, "Invalid engine internal data");

  836.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->nextAction.opcode == kEnginePostActionNull, "Invalid engine internal data");

  837.     CARLA_SAFE_ASSERT_RETURN_ERR(idA != idB, "Invalid operation, cannot switch plugin with itself");

  838.     CARLA_SAFE_ASSERT_RETURN_ERR(idA < pData->curPluginCount, "Invalid plugin Id");

  839.     CARLA_SAFE_ASSERT_RETURN_ERR(idB < pData->curPluginCount, "Invalid plugin Id");

  840.     carla_debug("CarlaEngine::switchPlugins(%i)", idA, idB);

  841. 

  842.     CarlaPlugin* const pluginA(pData->plugins[idA].plugin);

  843.     CarlaPlugin* const pluginB(pData->plugins[idB].plugin);

  844. 

  845.     CARLA_SAFE_ASSERT_RETURN_ERR(pluginA != nullptr, "Could not find plugin to switch");

  846.     CARLA_SAFE_ASSERT_RETURN_ERR(pluginA != nullptr, "Could not find plugin to switch");

  847.     CARLA_SAFE_ASSERT_RETURN_ERR(pluginA->getId() == idA, "Invalid engine internal data");

  848.     CARLA_SAFE_ASSERT_RETURN_ERR(pluginB->getId() == idB, "Invalid engine internal data");

  849. 

  850.     const ScopedThreadStopper sts(this);

  851. 

  852.     if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  853.         pData->graph.replacePlugin(pluginA, pluginB);

  854. 

  855.     const ScopedActionLock sal(this, kEnginePostActionSwitchPlugins, idA, idB);

  856. 

  857.     // TODO

  858.     /*

  859.     pluginA->updateOscURL();

  860.     pluginB->updateOscURL();

  861. 

  862.     if (isOscControlRegistered())

  863.         oscSend_control_switch_plugins(idA, idB);

  864.     */

  865. 

  866.     return true;

  867. }

  868. #endif

  869. 

  870. CarlaPlugin* CarlaEngine::getPlugin(const uint id) const noexcept

  871. {

  872. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  873.     CARLA_SAFE_ASSERT_RETURN_ERRN(pData->plugins != nullptr, "Invalid engine internal data");

  874.     CARLA_SAFE_ASSERT_RETURN_ERRN(pData->curPluginCount != 0, "Invalid engine internal data");

  875. #endif

  876.     CARLA_SAFE_ASSERT_RETURN_ERRN(pData->nextAction.opcode == kEnginePostActionNull, "Invalid engine internal data");

  877.     CARLA_SAFE_ASSERT_RETURN_ERRN(id < pData->curPluginCount, "Invalid plugin Id");

  878. 

  879.     return pData->plugins[id].plugin;

  880. }

  881. 

  882. CarlaPlugin* CarlaEngine::getPluginUnchecked(const uint id) const noexcept

  883. {

  884.     return pData->plugins[id].plugin;

  885. }

  886. 

  887. const char* CarlaEngine::getUniquePluginName(const char* const name) const

  888. {

  889.     CARLA_SAFE_ASSERT_RETURN(pData->nextAction.opcode == kEnginePostActionNull, nullptr);

  890.     CARLA_SAFE_ASSERT_RETURN(name != nullptr && name[0] != '\0', nullptr);

  891.     carla_debug("CarlaEngine::getUniquePluginName(\"%s\")", name);

  892. 

  893.     CarlaString sname;

  894.     sname = name;

  895. 

  896.     if (sname.isEmpty())

  897.     {

  898.         sname = "(No name)";

  899.         return sname.dup();

  900.     }

  901. 

  902.     const std::size_t maxNameSize(carla_minConstrained<uint>(getMaxClientNameSize(), 0xff, 6U) - 6); // 6 = strlen(" (10)") + 1

  903. 

  904.     if (maxNameSize == 0 || ! isRunning())

  905.         return sname.dup();

  906. 

  907.     sname.truncate(maxNameSize);

  908.     sname.replace(':', '.'); // ':' is used in JACK1 to split client/port names

  909. 

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

  911.     {

  912.         CARLA_SAFE_ASSERT_BREAK(pData->plugins[i].plugin != nullptr);

  913. 

  914.         // Check if unique name doesn't exist

  915.         if (const char* const pluginName = pData->plugins[i].plugin->getName())

  916.         {

  917.             if (sname != pluginName)

  918.                 continue;

  919.         }

  920. 

  921.         // Check if string has already been modified

  922.         {

  923.             const std::size_t len(sname.length());

  924. 

  925.             // 1 digit, ex: " (2)"

  926.             if (sname[len-4] == ' ' && sname[len-3] == '(' && sname.isDigit(len-2) && sname[len-1] == ')')

  927.             {

  928.                 const int number = sname[len-2] - '0';

  929. 

  930.                 if (number == 9)

  931.                 {

  932.                     // next number is 10, 2 digits

  933.                     sname.truncate(len-4);

  934.                     sname += " (10)";

  935.                     //sname.replace(" (9)", " (10)");

  936.                 }

  937.                 else

  938.                     sname[len-2] = char('0' + number + 1);

  939. 

  940.                 continue;

  941.             }

  942. 

  943.             // 2 digits, ex: " (11)"

  944.             if (sname[len-5] == ' ' && sname[len-4] == '(' && sname.isDigit(len-3) && sname.isDigit(len-2) && sname[len-1] == ')')

  945.             {

  946.                 char n2 = sname[len-2];

  947.                 char n3 = sname[len-3];

  948. 

  949.                 if (n2 == '9')

  950.                 {

  951.                     n2 = '0';

  952.                     n3 = static_cast<char>(n3 + 1);

  953.                 }

  954.                 else

  955.                     n2 = static_cast<char>(n2 + 1);

  956. 

  957.                 sname[len-2] = n2;

  958.                 sname[len-3] = n3;

  959. 

  960.                 continue;

  961.             }

  962.         }

  963. 

  964.         // Modify string if not

  965.         sname += " (2)";

  966.     }

  967. 

  968.     return sname.dup();

  969. }

  970. 

  971. // -----------------------------------------------------------------------

  972. // Project management

  973. 

  974. bool CarlaEngine::loadFile(const char* const filename)

  975. {

  976.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->isIdling == 0, "An operation is still being processed, please wait for it to finish");

  977.     CARLA_SAFE_ASSERT_RETURN_ERR(filename != nullptr && filename[0] != '\0', "Invalid filename");

  978.     carla_debug("CarlaEngine::loadFile(\"%s\")", filename);

  979. 

  980.     const String jfilename = String(CharPointer_UTF8(filename));

  981.     File file(jfilename);

  982.     CARLA_SAFE_ASSERT_RETURN_ERR(file.exists(), "Requested file does not exist or is not a readable");

  983. 

  984.     CarlaString baseName(file.getFileNameWithoutExtension().toRawUTF8());

  985.     CarlaString extension(file.getFileExtension().replace(".","").toLowerCase().toRawUTF8());

  986. 

  987.     const uint curPluginId(pData->nextPluginId < pData->curPluginCount ? pData->nextPluginId : pData->curPluginCount);

  988. 

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

  990.     // NOTE: please keep in sync with carla_get_supported_file_extensions!!

  991. 

  992.     if (extension == "carxp" || extension == "carxs")

  993.         return loadProject(filename, false);

  994. 

  995.     // -------------------------------------------------------------------

  996. 

  997.     if (extension == "sf2" || extension == "sf3")

  998.         return addPlugin(PLUGIN_SF2, filename, baseName, baseName, 0, nullptr);

  999. 

  1000.     if (extension == "sfz")

  1001.         return addPlugin(PLUGIN_SFZ, filename, baseName, baseName, 0, nullptr);

  1002. 

  1003.     // -------------------------------------------------------------------

  1004. 

  1005.     if (

  1006. #ifdef HAVE_SNDFILE

  1007.         extension == "aif"  ||

  1008.         extension == "aifc" ||

  1009.         extension == "aiff" ||

  1010.         extension == "au"   ||

  1011.         extension == "bwf"  ||

  1012.         extension == "flac" ||

  1013.         extension == "htk"  ||

  1014.         extension == "iff"  ||

  1015.         extension == "mat4" ||

  1016.         extension == "mat5" ||

  1017.         extension == "oga"  ||

  1018.         extension == "ogg"  ||

  1019.         extension == "paf"  ||

  1020.         extension == "pvf"  ||

  1021.         extension == "pvf5" ||

  1022.         extension == "sd2"  ||

  1023.         extension == "sf"   ||

  1024.         extension == "snd"  ||

  1025.         extension == "svx"  ||

  1026.         extension == "vcc"  ||

  1027.         extension == "w64"  ||

  1028.         extension == "wav"  ||

  1029.         extension == "xi"   ||

  1030. #endif

  1031. #ifdef HAVE_FFMPEG

  1032.         extension == "3g2" ||

  1033.         extension == "3gp" ||

  1034.         extension == "aac" ||

  1035.         extension == "ac3" ||

  1036.         extension == "amr" ||

  1037.         extension == "ape" ||

  1038.         extension == "mp2" ||

  1039.         extension == "mp3" ||

  1040.         extension == "mpc" ||

  1041.         extension == "wma" ||

  1042. # ifndef HAVE_SNDFILE

  1043.         // FFmpeg without sndfile

  1044.         extension == "flac" ||

  1045.         extension == "oga"  ||

  1046.         extension == "ogg"  ||

  1047.         extension == "w64"  ||

  1048.         extension == "wav"  ||

  1049. # endif

  1050. #endif

  1051.         false

  1052.        )

  1053.     {

  1054.         if (addPlugin(PLUGIN_INTERNAL, nullptr, baseName, "audiofile", 0, nullptr))

  1055.         {

  1056.             if (CarlaPlugin* const plugin = getPlugin(curPluginId))

  1057.                 plugin->setCustomData(CUSTOM_DATA_TYPE_STRING, "file", filename, true);

  1058.             return true;

  1059.         }

  1060.         return false;

  1061.     }

  1062. 

  1063.     // -------------------------------------------------------------------

  1064. 

  1065.     if (extension == "mid" || extension == "midi")

  1066.     {

  1067.         if (addPlugin(PLUGIN_INTERNAL, nullptr, baseName, "midifile", 0, nullptr))

  1068.         {

  1069.             if (CarlaPlugin* const plugin = getPlugin(curPluginId))

  1070.                 plugin->setCustomData(CUSTOM_DATA_TYPE_STRING, "file", filename, true);

  1071.             return true;

  1072.         }

  1073.         return false;

  1074.     }

  1075. 

  1076.     // -------------------------------------------------------------------

  1077.     // ZynAddSubFX

  1078. 

  1079.     if (extension == "xmz" || extension == "xiz")

  1080.     {

  1081. #ifdef HAVE_ZYN_DEPS

  1082.         CarlaString nicerName("Zyn - ");

  1083. 

  1084.         const std::size_t sep(baseName.find('-')+1);

  1085. 

  1086.         if (sep < baseName.length())

  1087.             nicerName += baseName.buffer()+sep;

  1088.         else

  1089.             nicerName += baseName;

  1090. 

  1091.         //nicerName

  1092.         if (addPlugin(PLUGIN_INTERNAL, nullptr, nicerName, "zynaddsubfx", 0, nullptr))

  1093.         {

  1094.             callback(ENGINE_CALLBACK_UI_STATE_CHANGED, curPluginId, 0, 0, 0.0f, nullptr);

  1095. 

  1096.             if (CarlaPlugin* const plugin = getPlugin(curPluginId))

  1097.                 plugin->setCustomData(CUSTOM_DATA_TYPE_STRING, (extension == "xmz") ? "CarlaAlternateFile1" : "CarlaAlternateFile2", filename, true);

  1098.             return true;

  1099.         }

  1100.         return false;

  1101. #else

  1102.         setLastError("This Carla build does not have ZynAddSubFX support");

  1103.         return false;

  1104. #endif

  1105.     }

  1106. 

  1107.     // -------------------------------------------------------------------

  1108.     // Direct plugin binaries

  1109. 

  1110. #ifdef CARLA_OS_MAC

  1111.     if (extension == "vst")

  1112.         return addPlugin(PLUGIN_VST2, filename, nullptr, nullptr, 0, nullptr);

  1113. #else

  1114.     if (extension == "dll" || extension == "so")

  1115.         return addPlugin(getBinaryTypeFromFile(filename), PLUGIN_VST2, filename, nullptr, nullptr, 0, nullptr, 0x0);

  1116. #endif

  1117. 

  1118. #if defined(USING_JUCE) && (defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN))

  1119.     if (extension == "vst3")

  1120.         return addPlugin(getBinaryTypeFromFile(filename), PLUGIN_VST3, filename, nullptr, nullptr, 0, nullptr, 0x0);

  1121. #endif

  1122. 

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

  1124. 

  1125.     setLastError("Unknown file extension");

  1126.     return false;

  1127. }

  1128. 

  1129. bool CarlaEngine::loadProject(const char* const filename, const bool setAsCurrentProject)

  1130. {

  1131.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->isIdling == 0, "An operation is still being processed, please wait for it to finish");

  1132.     CARLA_SAFE_ASSERT_RETURN_ERR(filename != nullptr && filename[0] != '\0', "Invalid filename");

  1133.     carla_debug("CarlaEngine::loadProject(\"%s\")", filename);

  1134. 

  1135.     const String jfilename = String(CharPointer_UTF8(filename));

  1136.     File file(jfilename);

  1137.     CARLA_SAFE_ASSERT_RETURN_ERR(file.existsAsFile(), "Requested file does not exist or is not a readable file");

  1138. 

  1139.     if (setAsCurrentProject)

  1140.     {

  1141. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  1142.         pData->currentProjectFilename = filename;

  1143. #endif

  1144.     }

  1145. 

  1146.     XmlDocument xml(file);

  1147.     return loadProjectInternal(xml);

  1148. }

  1149. 

  1150. bool CarlaEngine::saveProject(const char* const filename, const bool setAsCurrentProject)

  1151. {

  1152.     CARLA_SAFE_ASSERT_RETURN_ERR(filename != nullptr && filename[0] != '\0', "Invalid filename");

  1153.     carla_debug("CarlaEngine::saveProject(\"%s\")", filename);

  1154. 

  1155.     MemoryOutputStream out;

  1156.     saveProjectInternal(out);

  1157. 

  1158.     const String jfilename = String(CharPointer_UTF8(filename));

  1159.     File file(jfilename);

  1160. 

  1161.     if (setAsCurrentProject)

  1162.     {

  1163. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  1164.         pData->currentProjectFilename = filename;

  1165. #endif

  1166.     }

  1167. 

  1168.     if (file.replaceWithData(out.getData(), out.getDataSize()))

  1169.         return true;

  1170. 

  1171.     setLastError("Failed to write file");

  1172.     return false;

  1173. }

  1174. 

  1175. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  1176. const char* CarlaEngine::getCurrentProjectFilename() const noexcept

  1177. {

  1178.     return pData->currentProjectFilename;

  1179. }

  1180. 

  1181. void CarlaEngine::clearCurrentProjectFilename() noexcept

  1182. {

  1183.     pData->currentProjectFilename.clear();

  1184. }

  1185. #endif

  1186. 

  1187. // -----------------------------------------------------------------------

  1188. // Information (base)

  1189. 

  1190. uint CarlaEngine::getHints() const noexcept

  1191. {

  1192.     return pData->hints;

  1193. }

  1194. 

  1195. uint32_t CarlaEngine::getBufferSize() const noexcept

  1196. {

  1197.     return pData->bufferSize;

  1198. }

  1199. 

  1200. double CarlaEngine::getSampleRate() const noexcept

  1201. {

  1202.     return pData->sampleRate;

  1203. }

  1204. 

  1205. const char* CarlaEngine::getName() const noexcept

  1206. {

  1207.     return pData->name;

  1208. }

  1209. 

  1210. EngineProcessMode CarlaEngine::getProccessMode() const noexcept

  1211. {

  1212.     return pData->options.processMode;

  1213. }

  1214. 

  1215. const EngineOptions& CarlaEngine::getOptions() const noexcept

  1216. {

  1217.     return pData->options;

  1218. }

  1219. 

  1220. EngineTimeInfo CarlaEngine::getTimeInfo() const noexcept

  1221. {

  1222.     return pData->timeInfo;

  1223. }

  1224. 

  1225. // -----------------------------------------------------------------------

  1226. // Information (peaks)

  1227. 

  1228. float* CarlaEngine::getPeaks(const uint pluginId) const noexcept

  1229. {

  1230.     carla_zeroFloats(pData->peaks, 4);

  1231. 

  1232.     if (pluginId == MAIN_CARLA_PLUGIN_ID)

  1233.     {

  1234.         // get peak from first plugin, if available

  1235.         if (const uint count = pData->curPluginCount)

  1236.         {

  1237.             pData->peaks[0] = pData->plugins[0].peaks[0];

  1238.             pData->peaks[1] = pData->plugins[0].peaks[1];

  1239.             pData->peaks[2] = pData->plugins[count-1].peaks[2];

  1240.             pData->peaks[3] = pData->plugins[count-1].peaks[3];

  1241.         }

  1242. 

  1243.         return pData->peaks;

  1244.     }

  1245. 

  1246.     CARLA_SAFE_ASSERT_RETURN(pluginId < pData->curPluginCount, pData->peaks);

  1247. 

  1248.     return pData->plugins[pluginId].peaks;

  1249. }

  1250. 

  1251. float CarlaEngine::getInputPeak(const uint pluginId, const bool isLeft) const noexcept

  1252. {

  1253.     if (pluginId == MAIN_CARLA_PLUGIN_ID)

  1254.     {

  1255.         // get peak from first plugin, if available

  1256.         if (pData->curPluginCount > 0)

  1257.             return pData->plugins[0].peaks[isLeft ? 0 : 1];

  1258.         return 0.0f;

  1259.     }

  1260. 

  1261.     CARLA_SAFE_ASSERT_RETURN(pluginId < pData->curPluginCount, 0.0f);

  1262. 

  1263.     return pData->plugins[pluginId].peaks[isLeft ? 0 : 1];

  1264. }

  1265. 

  1266. float CarlaEngine::getOutputPeak(const uint pluginId, const bool isLeft) const noexcept

  1267. {

  1268.     if (pluginId == MAIN_CARLA_PLUGIN_ID)

  1269.     {

  1270.         // get peak from last plugin, if available

  1271.         if (pData->curPluginCount > 0)

  1272.             return pData->plugins[pData->curPluginCount-1].peaks[isLeft ? 2 : 3];

  1273.         return 0.0f;

  1274.     }

  1275. 

  1276.     CARLA_SAFE_ASSERT_RETURN(pluginId < pData->curPluginCount, 0.0f);

  1277. 

  1278.     return pData->plugins[pluginId].peaks[isLeft ? 2 : 3];

  1279. }

  1280. 

  1281. // -----------------------------------------------------------------------

  1282. // Callback

  1283. 

  1284. void CarlaEngine::callback(const EngineCallbackOpcode action, const uint pluginId, const int value1, const int value2, const float value3, const char* const valueStr) noexcept

  1285. {

  1286. #ifdef DEBUG

  1287.     if (pData->isIdling)

  1288.         carla_stdout("CarlaEngine::callback [while idling] (%i:%s, %i, %i, %i, %f, \"%s\")",

  1289.                      action, EngineCallbackOpcode2Str(action), pluginId, value1, value2, value3, valueStr);

  1290.     else if (action != ENGINE_CALLBACK_IDLE && action != ENGINE_CALLBACK_NOTE_ON && action != ENGINE_CALLBACK_NOTE_OFF)

  1291.         carla_debug("CarlaEngine::callback(%i:%s, %i, %i, %i, %f, \"%s\")",

  1292.                     action, EngineCallbackOpcode2Str(action), pluginId, value1, value2, value3, valueStr);

  1293. #endif

  1294. 

  1295.     if (pData->callback != nullptr)

  1296.     {

  1297.         if (action == ENGINE_CALLBACK_IDLE)

  1298.             ++pData->isIdling;

  1299. 

  1300.         try {

  1301.             pData->callback(pData->callbackPtr, action, pluginId, value1, value2, value3, valueStr);

  1302. #if defined(CARLA_OS_LINUX) && defined(__arm__)

  1303.         } catch (__cxxabiv1::__forced_unwind&) {

  1304.             carla_stderr2("Caught forced unwind exception in callback");

  1305.             throw;

  1306. #endif

  1307.         } catch (...) {

  1308.             carla_safe_exception("callback", __FILE__, __LINE__);

  1309.         }

  1310. 

  1311.         if (action == ENGINE_CALLBACK_IDLE)

  1312.             --pData->isIdling;

  1313.     }

  1314. }

  1315. 

  1316. void CarlaEngine::setCallback(const EngineCallbackFunc func, void* const ptr) noexcept

  1317. {

  1318.     carla_debug("CarlaEngine::setCallback(%p, %p)", func, ptr);

  1319. 

  1320.     pData->callback    = func;

  1321.     pData->callbackPtr = ptr;

  1322. }

  1323. 

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

  1325. // File Callback

  1326. 

  1327. const char* CarlaEngine::runFileCallback(const FileCallbackOpcode action, const bool isDir, const char* const title, const char* const filter) noexcept

  1328. {

  1329.     CARLA_SAFE_ASSERT_RETURN(title != nullptr && title[0] != '\0', nullptr);

  1330.     CARLA_SAFE_ASSERT_RETURN(filter != nullptr, nullptr);

  1331.     carla_debug("CarlaEngine::runFileCallback(%i:%s, %s, \"%s\", \"%s\")", action, FileCallbackOpcode2Str(action), bool2str(isDir), title, filter);

  1332. 

  1333.     const char* ret = nullptr;

  1334. 

  1335.     if (pData->fileCallback != nullptr)

  1336.     {

  1337.         try {

  1338.             ret = pData->fileCallback(pData->fileCallbackPtr, action, isDir, title, filter);

  1339.         } CARLA_SAFE_EXCEPTION("runFileCallback");

  1340.     }

  1341. 

  1342.     return ret;

  1343. }

  1344. 

  1345. void CarlaEngine::setFileCallback(const FileCallbackFunc func, void* const ptr) noexcept

  1346. {

  1347.     carla_debug("CarlaEngine::setFileCallback(%p, %p)", func, ptr);

  1348. 

  1349.     pData->fileCallback    = func;

  1350.     pData->fileCallbackPtr = ptr;

  1351. }

  1352. 

  1353. // -----------------------------------------------------------------------

  1354. // Transport

  1355. 

  1356. void CarlaEngine::transportPlay() noexcept

  1357. {

  1358.     pData->timeInfo.playing = true;

  1359.     pData->time.setNeedsReset();

  1360. }

  1361. 

  1362. void CarlaEngine::transportPause() noexcept

  1363. {

  1364.     if (pData->timeInfo.playing)

  1365.         pData->time.pause();

  1366.     else

  1367.         pData->time.setNeedsReset();

  1368. }

  1369. 

  1370. void CarlaEngine::transportBPM(const double bpm) noexcept

  1371. {

  1372.     try {

  1373.         pData->time.setBPM(bpm);

  1374.     } CARLA_SAFE_EXCEPTION("CarlaEngine::transportBPM");

  1375. }

  1376. 

  1377. void CarlaEngine::transportRelocate(const uint64_t frame) noexcept

  1378. {

  1379.     pData->time.relocate(frame);

  1380. }

  1381. 

  1382. // -----------------------------------------------------------------------

  1383. // Error handling

  1384. 

  1385. const char* CarlaEngine::getLastError() const noexcept

  1386. {

  1387.     return pData->lastError;

  1388. }

  1389. 

  1390. void CarlaEngine::setLastError(const char* const error) const noexcept

  1391. {

  1392.     pData->lastError = error;

  1393. }

  1394. 

  1395. // -----------------------------------------------------------------------

  1396. // Misc

  1397. 

  1398. bool CarlaEngine::isAboutToClose() const noexcept

  1399. {

  1400.     return pData->aboutToClose;

  1401. }

  1402. 

  1403. bool CarlaEngine::setAboutToClose() noexcept

  1404. {

  1405.     carla_debug("CarlaEngine::setAboutToClose()");

  1406. 

  1407.     pData->aboutToClose = true;

  1408. 

  1409.     return (pData->isIdling == 0);

  1410. }

  1411. 

  1412. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  1413. bool CarlaEngine::isLoadingProject() const noexcept

  1414. {

  1415.     return pData->loadingProject;

  1416. }

  1417. #endif

  1418. 

  1419. void CarlaEngine::setActionCanceled(const bool canceled) noexcept

  1420. {

  1421.     pData->actionCanceled = canceled;

  1422. }

  1423. 

  1424. bool CarlaEngine::wasActionCanceled() const noexcept

  1425. {

  1426.     return pData->actionCanceled;

  1427. }

  1428. 

  1429. // -----------------------------------------------------------------------

  1430. // Global options

  1431. 

  1432. void CarlaEngine::setOption(const EngineOption option, const int value, const char* const valueStr) noexcept

  1433. {

  1434.     carla_debug("CarlaEngine::setOption(%i:%s, %i, \"%s\")", option, EngineOption2Str(option), value, valueStr);

  1435. 

  1436.     if (isRunning())

  1437.     {

  1438.         switch (option)

  1439.         {

  1440.         case ENGINE_OPTION_PROCESS_MODE:

  1441.         case ENGINE_OPTION_AUDIO_TRIPLE_BUFFER:

  1442.         case ENGINE_OPTION_AUDIO_DEVICE:

  1443.             return carla_stderr("CarlaEngine::setOption(%i:%s, %i, \"%s\") - Cannot set this option while engine is running!",

  1444.                                 option, EngineOption2Str(option), value, valueStr);

  1445.         default:

  1446.             break;

  1447.         }

  1448.     }

  1449. 

  1450.     // do not un-force stereo for rack mode

  1451.     if (pData->options.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && option == ENGINE_OPTION_FORCE_STEREO && value != 0)

  1452.         return;

  1453. 

  1454.     switch (option)

  1455.     {

  1456.     case ENGINE_OPTION_DEBUG:

  1457.         break;

  1458. 

  1459.     case ENGINE_OPTION_PROCESS_MODE:

  1460.         CARLA_SAFE_ASSERT_RETURN(value >= ENGINE_PROCESS_MODE_SINGLE_CLIENT && value <= ENGINE_PROCESS_MODE_BRIDGE,);

  1461.         pData->options.processMode = static_cast<EngineProcessMode>(value);

  1462.         break;

  1463. 

  1464.     case ENGINE_OPTION_TRANSPORT_MODE:

  1465.         CARLA_SAFE_ASSERT_RETURN(value >= ENGINE_TRANSPORT_MODE_DISABLED && value <= ENGINE_TRANSPORT_MODE_BRIDGE,);

  1466.         CARLA_SAFE_ASSERT_RETURN(getType() == kEngineTypeJack || value != ENGINE_TRANSPORT_MODE_JACK,);

  1467.         pData->options.transportMode = static_cast<EngineTransportMode>(value);

  1468.         delete[] pData->options.transportExtra;

  1469.         if (value >= ENGINE_TRANSPORT_MODE_DISABLED && valueStr != nullptr)

  1470.             pData->options.transportExtra = carla_strdup_safe(valueStr);

  1471.         else

  1472.             pData->options.transportExtra = nullptr;

  1473. 

  1474.         pData->time.setNeedsReset();

  1475. 

  1476. #if defined(HAVE_HYLIA) && !defined(BUILD_BRIDGE)

  1477.         // enable link now if needed

  1478.         {

  1479.             const bool linkEnabled = pData->options.transportExtra != nullptr && std::strstr(pData->options.transportExtra, ":link:") != nullptr;

  1480.             pData->time.enableLink(linkEnabled);

  1481.         }

  1482. #endif

  1483.         break;

  1484. 

  1485.     case ENGINE_OPTION_FORCE_STEREO:

  1486.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1487.         pData->options.forceStereo = (value != 0);

  1488.         break;

  1489. 

  1490.     case ENGINE_OPTION_PREFER_PLUGIN_BRIDGES:

  1491. #ifdef BUILD_BRIDGE_ALTERNATIVE_ARCH

  1492.         CARLA_SAFE_ASSERT_RETURN(value == 0,);

  1493. #else

  1494.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1495. #endif

  1496.         pData->options.preferPluginBridges = (value != 0);

  1497.         break;

  1498. 

  1499.     case ENGINE_OPTION_PREFER_UI_BRIDGES:

  1500.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1501.         pData->options.preferUiBridges = (value != 0);

  1502.         break;

  1503. 

  1504.     case ENGINE_OPTION_UIS_ALWAYS_ON_TOP:

  1505.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1506.         pData->options.uisAlwaysOnTop = (value != 0);

  1507.         break;

  1508. 

  1509.     case ENGINE_OPTION_MAX_PARAMETERS:

  1510.         CARLA_SAFE_ASSERT_RETURN(value >= 0,);

  1511.         pData->options.maxParameters = static_cast<uint>(value);

  1512.         break;

  1513. 

  1514.     case ENGINE_OPTION_UI_BRIDGES_TIMEOUT:

  1515.         CARLA_SAFE_ASSERT_RETURN(value >= 0,);

  1516.         pData->options.uiBridgesTimeout = static_cast<uint>(value);

  1517.         break;

  1518. 

  1519.     case ENGINE_OPTION_AUDIO_BUFFER_SIZE:

  1520.         CARLA_SAFE_ASSERT_RETURN(value >= 8,);

  1521.         pData->options.audioBufferSize = static_cast<uint>(value);

  1522.         break;

  1523. 

  1524.     case ENGINE_OPTION_AUDIO_SAMPLE_RATE:

  1525.         CARLA_SAFE_ASSERT_RETURN(value >= 22050,);

  1526.         pData->options.audioSampleRate = static_cast<uint>(value);

  1527.         break;

  1528. 

  1529.     case ENGINE_OPTION_AUDIO_TRIPLE_BUFFER:

  1530.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1531.         pData->options.audioTripleBuffer = (value != 0);

  1532.         break;

  1533. 

  1534.     case ENGINE_OPTION_AUDIO_DEVICE:

  1535.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr,);

  1536. 

  1537.         if (pData->options.audioDevice != nullptr)

  1538.             delete[] pData->options.audioDevice;

  1539. 

  1540.         pData->options.audioDevice = carla_strdup_safe(valueStr);

  1541.         break;

  1542. 

  1543.     case ENGINE_OPTION_PLUGIN_PATH:

  1544.         CARLA_SAFE_ASSERT_RETURN(value > PLUGIN_NONE,);

  1545.         CARLA_SAFE_ASSERT_RETURN(value <= PLUGIN_SFZ,);

  1546. 

  1547.         switch (value)

  1548.         {

  1549.         case PLUGIN_LADSPA:

  1550.             if (pData->options.pathLADSPA != nullptr)

  1551.                 delete[] pData->options.pathLADSPA;

  1552.             if (valueStr != nullptr)

  1553.                 pData->options.pathLADSPA = carla_strdup_safe(valueStr);

  1554.             else

  1555.                 pData->options.pathLADSPA = nullptr;

  1556.             break;

  1557.         case PLUGIN_DSSI:

  1558.             if (pData->options.pathDSSI != nullptr)

  1559.                 delete[] pData->options.pathDSSI;

  1560.             if (valueStr != nullptr)

  1561.                 pData->options.pathDSSI = carla_strdup_safe(valueStr);

  1562.             else

  1563.                 pData->options.pathDSSI = nullptr;

  1564.             break;

  1565.         case PLUGIN_LV2:

  1566.             if (pData->options.pathLV2 != nullptr)

  1567.                 delete[] pData->options.pathLV2;

  1568.             if (valueStr != nullptr)

  1569.                 pData->options.pathLV2 = carla_strdup_safe(valueStr);

  1570.             else

  1571.                 pData->options.pathLV2 = nullptr;

  1572.             break;

  1573.         case PLUGIN_VST2:

  1574.             if (pData->options.pathVST2 != nullptr)

  1575.                 delete[] pData->options.pathVST2;

  1576.             if (valueStr != nullptr)

  1577.                 pData->options.pathVST2 = carla_strdup_safe(valueStr);

  1578.             else

  1579.                 pData->options.pathVST2 = nullptr;

  1580.             break;

  1581.         case PLUGIN_VST3:

  1582.             if (pData->options.pathVST3 != nullptr)

  1583.                 delete[] pData->options.pathVST3;

  1584.             if (valueStr != nullptr)

  1585.                 pData->options.pathVST3 = carla_strdup_safe(valueStr);

  1586.             else

  1587.                 pData->options.pathVST3 = nullptr;

  1588.             break;

  1589.         case PLUGIN_SF2:

  1590.             if (pData->options.pathSF2 != nullptr)

  1591.                 delete[] pData->options.pathSF2;

  1592.             if (valueStr != nullptr)

  1593.                 pData->options.pathSF2 = carla_strdup_safe(valueStr);

  1594.             else

  1595.                 pData->options.pathSF2 = nullptr;

  1596.             break;

  1597.         case PLUGIN_SFZ:

  1598.             if (pData->options.pathSFZ != nullptr)

  1599.                 delete[] pData->options.pathSFZ;

  1600.             if (valueStr != nullptr)

  1601.                 pData->options.pathSFZ = carla_strdup_safe(valueStr);

  1602.             else

  1603.                 pData->options.pathSFZ = nullptr;

  1604.             break;

  1605.         default:

  1606.             return carla_stderr("CarlaEngine::setOption(%i:%s, %i, \"%s\") - Invalid plugin type", option, EngineOption2Str(option), value, valueStr);

  1607.             break;

  1608.         }

  1609.         break;

  1610. 

  1611.     case ENGINE_OPTION_PATH_BINARIES:

  1612.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1613. 

  1614.         if (pData->options.binaryDir != nullptr)

  1615.             delete[] pData->options.binaryDir;

  1616. 

  1617.         pData->options.binaryDir = carla_strdup_safe(valueStr);

  1618.         break;

  1619. 

  1620.     case ENGINE_OPTION_PATH_RESOURCES:

  1621.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1622. 

  1623.         if (pData->options.resourceDir != nullptr)

  1624.             delete[] pData->options.resourceDir;

  1625. 

  1626.         pData->options.resourceDir = carla_strdup_safe(valueStr);

  1627.         break;

  1628. 

  1629.     case ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR: {

  1630.         CARLA_SAFE_ASSERT_RETURN(pData->options.binaryDir != nullptr && pData->options.binaryDir[0] != '\0',);

  1631. 

  1632. #ifdef CARLA_OS_LINUX

  1633.         const ScopedEngineEnvironmentLocker _seel(this);

  1634. 

  1635.         if (value != 0)

  1636.         {

  1637.             CarlaString interposerPath(CarlaString(pData->options.binaryDir) + "/libcarla_interposer-safe.so");

  1638.             ::setenv("LD_PRELOAD", interposerPath.buffer(), 1);

  1639.         }

  1640.         else

  1641.         {

  1642.             ::unsetenv("LD_PRELOAD");

  1643.         }

  1644. #endif

  1645.     }   break;

  1646. 

  1647.     case ENGINE_OPTION_FRONTEND_WIN_ID: {

  1648.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1649.         const long long winId(std::strtoll(valueStr, nullptr, 16));

  1650.         CARLA_SAFE_ASSERT_RETURN(winId >= 0,);

  1651.         pData->options.frontendWinId = static_cast<uintptr_t>(winId);

  1652.     }   break;

  1653. 

  1654. #if !defined(BUILD_BRIDGE_ALTERNATIVE_ARCH) && !defined(CARLA_OS_WIN)

  1655.     case ENGINE_OPTION_WINE_EXECUTABLE:

  1656.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1657. 

  1658.         if (pData->options.wine.executable != nullptr)

  1659.             delete[] pData->options.wine.executable;

  1660. 

  1661.         pData->options.wine.executable = carla_strdup_safe(valueStr);

  1662.         break;

  1663. 

  1664.     case ENGINE_OPTION_WINE_AUTO_PREFIX:

  1665.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1666.         pData->options.wine.autoPrefix = (value != 0);

  1667.         break;

  1668. 

  1669.     case ENGINE_OPTION_WINE_FALLBACK_PREFIX:

  1670.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1671. 

  1672.         if (pData->options.wine.fallbackPrefix != nullptr)

  1673.             delete[] pData->options.wine.fallbackPrefix;

  1674. 

  1675.         pData->options.wine.fallbackPrefix = carla_strdup_safe(valueStr);

  1676.         break;

  1677. 

  1678.     case ENGINE_OPTION_WINE_RT_PRIO_ENABLED:

  1679.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1680.         pData->options.wine.rtPrio = (value != 0);

  1681.         break;

  1682. 

  1683.     case ENGINE_OPTION_WINE_BASE_RT_PRIO:

  1684.         CARLA_SAFE_ASSERT_RETURN(value >= 1 && value <= 89,);

  1685.         pData->options.wine.baseRtPrio = value;

  1686.         break;

  1687. 

  1688.     case ENGINE_OPTION_WINE_SERVER_RT_PRIO:

  1689.         CARLA_SAFE_ASSERT_RETURN(value >= 1 && value <= 99,);

  1690.         pData->options.wine.serverRtPrio = value;

  1691.         break;

  1692. #endif

  1693. 

  1694.     case ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT:

  1695.         break;

  1696.     }

  1697. }

  1698. 

  1699. #ifndef BUILD_BRIDGE

  1700. // -----------------------------------------------------------------------

  1701. // OSC Stuff

  1702. 

  1703. bool CarlaEngine::isOscControlRegistered() const noexcept

  1704. {

  1705. # ifdef HAVE_LIBLO

  1706.     return pData->osc.isControlRegistered();

  1707. # else

  1708.     return false;

  1709. # endif

  1710. }

  1711. 

  1712. void CarlaEngine::idleOsc() const noexcept

  1713. {

  1714. # ifdef HAVE_LIBLO

  1715.     pData->osc.idle();

  1716. # endif

  1717. }

  1718. 

  1719. const char* CarlaEngine::getOscServerPathTCP() const noexcept

  1720. {

  1721. # ifdef HAVE_LIBLO

  1722.     return pData->osc.getServerPathTCP();

  1723. # else

  1724.     return nullptr;

  1725. # endif

  1726. }

  1727. 

  1728. const char* CarlaEngine::getOscServerPathUDP() const noexcept

  1729. {

  1730. # ifdef HAVE_LIBLO

  1731.     return pData->osc.getServerPathUDP();

  1732. # else

  1733.     return nullptr;

  1734. # endif

  1735. }

  1736. #endif

  1737. 

  1738. // -----------------------------------------------------------------------

  1739. // Helper functions

  1740. 

  1741. EngineEvent* CarlaEngine::getInternalEventBuffer(const bool isInput) const noexcept

  1742. {

  1743.     return isInput ? pData->events.in : pData->events.out;

  1744. }

  1745. 

  1746. // -----------------------------------------------------------------------

  1747. // Internal stuff

  1748. 

  1749. void CarlaEngine::bufferSizeChanged(const uint32_t newBufferSize)

  1750. {

  1751.     carla_debug("CarlaEngine::bufferSizeChanged(%i)", newBufferSize);

  1752. 

  1753. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  1754.     if (pData->options.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK ||

  1755.         pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  1756.     {

  1757.         pData->graph.setBufferSize(newBufferSize);

  1758.     }

  1759. #endif

  1760. 

  1761.     pData->time.updateAudioValues(newBufferSize, pData->sampleRate);

  1762. 

  1763.     for (uint i=0; i < pData->curPluginCount; ++i)

  1764.     {

  1765.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1766. 

  1767.         if (plugin != nullptr && plugin->isEnabled())

  1768.         {

  1769.             plugin->tryLock(true);

  1770.             plugin->bufferSizeChanged(newBufferSize);

  1771.             plugin->unlock();

  1772.         }

  1773.     }

  1774. 

  1775.     callback(ENGINE_CALLBACK_BUFFER_SIZE_CHANGED, 0, static_cast<int>(newBufferSize), 0, 0.0f, nullptr);

  1776. }

  1777. 

  1778. void CarlaEngine::sampleRateChanged(const double newSampleRate)

  1779. {

  1780.     carla_debug("CarlaEngine::sampleRateChanged(%g)", newSampleRate);

  1781. 

  1782. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  1783.     if (pData->options.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK ||

  1784.         pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  1785.     {

  1786.         pData->graph.setSampleRate(newSampleRate);

  1787.     }

  1788. #endif

  1789. 

  1790.     pData->time.updateAudioValues(pData->bufferSize, newSampleRate);

  1791. 

  1792.     for (uint i=0; i < pData->curPluginCount; ++i)

  1793.     {

  1794.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1795. 

  1796.         if (plugin != nullptr && plugin->isEnabled())

  1797.         {

  1798.             plugin->tryLock(true);

  1799.             plugin->sampleRateChanged(newSampleRate);

  1800.             plugin->unlock();

  1801.         }

  1802.     }

  1803. 

  1804.     callback(ENGINE_CALLBACK_SAMPLE_RATE_CHANGED, 0, 0, 0, static_cast<float>(newSampleRate), nullptr);

  1805. }

  1806. 

  1807. void CarlaEngine::offlineModeChanged(const bool isOfflineNow)

  1808. {

  1809.     carla_debug("CarlaEngine::offlineModeChanged(%s)", bool2str(isOfflineNow));

  1810. 

  1811. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  1812.     if (pData->options.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK ||

  1813.         pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  1814.     {

  1815.         pData->graph.setOffline(isOfflineNow);

  1816.     }

  1817. #endif

  1818. 

  1819.     for (uint i=0; i < pData->curPluginCount; ++i)

  1820.     {

  1821.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1822. 

  1823.         if (plugin != nullptr && plugin->isEnabled())

  1824.             plugin->offlineModeChanged(isOfflineNow);

  1825.     }

  1826. }

  1827. 

  1828. void CarlaEngine::setPluginPeaks(const uint pluginId, float const inPeaks[2], float const outPeaks[2]) noexcept

  1829. {

  1830.     EnginePluginData& pluginData(pData->plugins[pluginId]);

  1831. 

  1832.     pluginData.peaks[0]  = inPeaks[0];

  1833.     pluginData.peaks[1]  = inPeaks[1];

  1834.     pluginData.peaks[2] = outPeaks[0];

  1835.     pluginData.peaks[3] = outPeaks[1];

  1836. }

  1837. 

  1838. void CarlaEngine::saveProjectInternal(water::MemoryOutputStream& outStream) const

  1839. {

  1840.     // send initial prepareForSave first, giving time for bridges to act

  1841.     for (uint i=0; i < pData->curPluginCount; ++i)

  1842.     {

  1843.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1844. 

  1845.         if (plugin != nullptr && plugin->isEnabled())

  1846.         {

  1847. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  1848.             // deactivate bridge client-side ping check, since some plugins block during save

  1849.             if (plugin->getHints() & PLUGIN_IS_BRIDGE)

  1850.                 plugin->setCustomData(CUSTOM_DATA_TYPE_STRING, "__CarlaPingOnOff__", "false", false);

  1851. #endif

  1852.             plugin->prepareForSave();

  1853.         }

  1854.     }

  1855. 

  1856.     outStream << "<?xml version='1.0' encoding='UTF-8'?>\n";

  1857.     outStream << "<!DOCTYPE CARLA-PROJECT>\n";

  1858.     outStream << "<CARLA-PROJECT VERSION='2.0'>\n";

  1859. 

  1860.     const bool isPlugin(getType() == kEngineTypePlugin);

  1861.     const EngineOptions& options(pData->options);

  1862. 

  1863.     {

  1864.         MemoryOutputStream outSettings(1024);

  1865. 

  1866.         outSettings << " <EngineSettings>\n";

  1867. 

  1868.         outSettings << "  <ForceStereo>"         << bool2str(options.forceStereo)         << "</ForceStereo>\n";

  1869.         outSettings << "  <PreferPluginBridges>" << bool2str(options.preferPluginBridges) << "</PreferPluginBridges>\n";

  1870.         outSettings << "  <PreferUiBridges>"     << bool2str(options.preferUiBridges)     << "</PreferUiBridges>\n";

  1871.         outSettings << "  <UIsAlwaysOnTop>"      << bool2str(options.uisAlwaysOnTop)      << "</UIsAlwaysOnTop>\n";

  1872. 

  1873.         outSettings << "  <MaxParameters>"       << String(options.maxParameters)    << "</MaxParameters>\n";

  1874.         outSettings << "  <UIBridgesTimeout>"    << String(options.uiBridgesTimeout) << "</UIBridgesTimeout>\n";

  1875. 

  1876.         if (isPlugin)

  1877.         {

  1878.             outSettings << "  <LADSPA_PATH>" << xmlSafeString(options.pathLADSPA, true) << "</LADSPA_PATH>\n";

  1879.             outSettings << "  <DSSI_PATH>"   << xmlSafeString(options.pathDSSI,   true) << "</DSSI_PATH>\n";

  1880.             outSettings << "  <LV2_PATH>"    << xmlSafeString(options.pathLV2,    true) << "</LV2_PATH>\n";

  1881.             outSettings << "  <VST2_PATH>"   << xmlSafeString(options.pathVST2,   true) << "</VST2_PATH>\n";

  1882.             outSettings << "  <VST3_PATH>"   << xmlSafeString(options.pathVST3,   true) << "</VST3_PATH>\n";

  1883.             outSettings << "  <SF2_PATH>"    << xmlSafeString(options.pathSF2,    true) << "</SF2_PATH>\n";

  1884.             outSettings << "  <SFZ_PATH>"    << xmlSafeString(options.pathSFZ,    true) << "</SFZ_PATH>\n";

  1885.         }

  1886. 

  1887.         outSettings << " </EngineSettings>\n";

  1888.         outStream << outSettings;

  1889.     }

  1890. 

  1891.     if (pData->timeInfo.bbt.valid && ! isPlugin)

  1892.     {

  1893.         MemoryOutputStream outTransport(128);

  1894. 

  1895.         outTransport << "\n <Transport>\n";

  1896.         // outTransport << "  <BeatsPerBar>"    << pData->timeInfo.bbt.beatsPerBar    << "</BeatsPerBar>\n";

  1897.         outTransport << "  <BeatsPerMinute>" << pData->timeInfo.bbt.beatsPerMinute << "</BeatsPerMinute>\n";

  1898.         outTransport << " </Transport>\n";

  1899.         outStream << outTransport;

  1900.     }

  1901. 

  1902.     char strBuf[STR_MAX+1];

  1903. 

  1904.     for (uint i=0; i < pData->curPluginCount; ++i)

  1905.     {

  1906.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1907. 

  1908.         if (plugin != nullptr && plugin->isEnabled())

  1909.         {

  1910.             MemoryOutputStream outPlugin(4096), streamPlugin;

  1911.             plugin->getStateSave(false).dumpToMemoryStream(streamPlugin);

  1912. 

  1913.             outPlugin << "\n";

  1914. 

  1915.             strBuf[0] = '\0';

  1916.             plugin->getRealName(strBuf);

  1917. 

  1918.             if (strBuf[0] != '\0')

  1919.                 outPlugin << " <!-- " << xmlSafeString(strBuf, true) << " -->\n";

  1920. 

  1921.             outPlugin << " <Plugin>\n";

  1922.             outPlugin << streamPlugin;

  1923.             outPlugin << " </Plugin>\n";

  1924.             outStream << outPlugin;

  1925.         }

  1926.     }

  1927. 

  1928. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  1929.     // tell bridges we're done saving

  1930.     for (uint i=0; i < pData->curPluginCount; ++i)

  1931.     {

  1932.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1933. 

  1934.         if (plugin != nullptr && plugin->isEnabled() && (plugin->getHints() & PLUGIN_IS_BRIDGE) != 0)

  1935.             plugin->setCustomData(CUSTOM_DATA_TYPE_STRING, "__CarlaPingOnOff__", "true", false);

  1936.     }

  1937. 

  1938.     // save internal connections

  1939.     if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  1940.     {

  1941.         if (const char* const* const patchbayConns = getPatchbayConnections(false))

  1942.         {

  1943.             MemoryOutputStream outPatchbay(2048);

  1944. 

  1945.             outPatchbay << "\n <Patchbay>\n";

  1946. 

  1947.             for (int i=0; patchbayConns[i] != nullptr && patchbayConns[i+1] != nullptr; ++i, ++i )

  1948.             {

  1949.                 const char* const connSource(patchbayConns[i]);

  1950.                 const char* const connTarget(patchbayConns[i+1]);

  1951. 

  1952.                 CARLA_SAFE_ASSERT_CONTINUE(connSource != nullptr && connSource[0] != '\0');

  1953.                 CARLA_SAFE_ASSERT_CONTINUE(connTarget != nullptr && connTarget[0] != '\0');

  1954. 

  1955.                 outPatchbay << "  <Connection>\n";

  1956.                 outPatchbay << "   <Source>" << xmlSafeString(connSource, true) << "</Source>\n";

  1957.                 outPatchbay << "   <Target>" << xmlSafeString(connTarget, true) << "</Target>\n";

  1958.                 outPatchbay << "  </Connection>\n";

  1959.             }

  1960. 

  1961.             outPatchbay << " </Patchbay>\n";

  1962.             outStream << outPatchbay;

  1963.         }

  1964.     }

  1965. 

  1966.     // if we're running inside some session-manager (and using JACK), let them handle the connections

  1967.     bool saveExternalConnections;

  1968. 

  1969.     /**/ if (isPlugin)

  1970.         saveExternalConnections = false;

  1971.     else if (std::strcmp(getCurrentDriverName(), "JACK") != 0)

  1972.         saveExternalConnections = true;

  1973.     else if (std::getenv("CARLA_DONT_MANAGE_CONNECTIONS") != nullptr)

  1974.         saveExternalConnections = false;

  1975.     else if (std::getenv("LADISH_APP_NAME") != nullptr)

  1976.         saveExternalConnections = false;

  1977.     else if (std::getenv("NSM_URL") != nullptr)

  1978.         saveExternalConnections = false;

  1979.     else

  1980.         saveExternalConnections = true;

  1981. 

  1982.     if (saveExternalConnections)

  1983.     {

  1984.         if (const char* const* const patchbayConns = getPatchbayConnections(true))

  1985.         {

  1986.             MemoryOutputStream outPatchbay(2048);

  1987. 

  1988.             outPatchbay << "\n <ExternalPatchbay>\n";

  1989. 

  1990.             for (int i=0; patchbayConns[i] != nullptr && patchbayConns[i+1] != nullptr; ++i, ++i )

  1991.             {

  1992.                 const char* const connSource(patchbayConns[i]);

  1993.                 const char* const connTarget(patchbayConns[i+1]);

  1994. 

  1995.                 CARLA_SAFE_ASSERT_CONTINUE(connSource != nullptr && connSource[0] != '\0');

  1996.                 CARLA_SAFE_ASSERT_CONTINUE(connTarget != nullptr && connTarget[0] != '\0');

  1997. 

  1998.                 outPatchbay << "  <Connection>\n";

  1999.                 outPatchbay << "   <Source>" << xmlSafeString(connSource, true) << "</Source>\n";

  2000.                 outPatchbay << "   <Target>" << xmlSafeString(connTarget, true) << "</Target>\n";

  2001.                 outPatchbay << "  </Connection>\n";

  2002.             }

  2003. 

  2004.             outPatchbay << " </ExternalPatchbay>\n";

  2005.             outStream << outPatchbay;

  2006.         }

  2007.     }

  2008. #endif

  2009. 

  2010.     outStream << "</CARLA-PROJECT>\n";

  2011. }

  2012. 

  2013. static String findBinaryInCustomPath(const char* const searchPath, const char* const binary)

  2014. {

  2015.     const StringArray searchPaths(StringArray::fromTokens(searchPath, CARLA_OS_SPLIT_STR, ""));

  2016. 

  2017.     // try direct filename first

  2018.     String jbinary(binary);

  2019. 

  2020.     // adjust for current platform

  2021. #ifdef CARLA_OS_WIN

  2022.     if (jbinary[0] == '/')

  2023.         jbinary = "C:" + jbinary.replaceCharacter('/', '\\');

  2024. #else

  2025.     if (jbinary[1] == ':' && (jbinary[2] == '\\' || jbinary[2] == '/'))

  2026.         jbinary = jbinary.substring(2).replaceCharacter('\\', '/');

  2027. #endif

  2028. 

  2029.     String filename = File(jbinary).getFileName();

  2030. 

  2031.     int searchFlags = File::findFiles|File::ignoreHiddenFiles;

  2032. #ifdef CARLA_OS_MAC

  2033.     if (filename.endsWithIgnoreCase(".vst") || filename.endsWithIgnoreCase(".vst3"))

  2034.         searchFlags |= File::findDirectories;

  2035. #endif

  2036. 

  2037.     Array<File> results;

  2038.     for (const String *it=searchPaths.begin(), *end=searchPaths.end(); it != end; ++it)

  2039.     {

  2040.         const File path(*it);

  2041. 

  2042.         results.clear();

  2043.         path.findChildFiles(results, searchFlags, true, filename);

  2044. 

  2045.         if (results.size() > 0)

  2046.             return results.getFirst().getFullPathName();

  2047.     }

  2048. 

  2049.     // try changing extension

  2050. #if defined(CARLA_OS_MAC)

  2051.     if (filename.endsWithIgnoreCase(".dll") || filename.endsWithIgnoreCase(".so"))

  2052.         filename = File(jbinary).getFileNameWithoutExtension() + ".dylib";

  2053. #elif defined(CARLA_OS_WIN)

  2054.     if (filename.endsWithIgnoreCase(".dylib") || filename.endsWithIgnoreCase(".so"))

  2055.         filename = File(jbinary).getFileNameWithoutExtension() + ".dll";

  2056. #else

  2057.     if (filename.endsWithIgnoreCase(".dll") || filename.endsWithIgnoreCase(".dylib"))

  2058.         filename = File(jbinary).getFileNameWithoutExtension() + ".so";

  2059. #endif

  2060.     else

  2061.         return String();

  2062. 

  2063.     for (const String *it=searchPaths.begin(), *end=searchPaths.end(); it != end; ++it)

  2064.     {

  2065.         const File path(*it);

  2066. 

  2067.         results.clear();

  2068.         path.findChildFiles(results, searchFlags, true, filename);

  2069. 

  2070.         if (results.size() > 0)

  2071.             return results.getFirst().getFullPathName();

  2072.     }

  2073. 

  2074.     return String();

  2075. }

  2076. 

  2077. bool CarlaEngine::loadProjectInternal(water::XmlDocument& xmlDoc)

  2078. {

  2079.     ScopedPointer<XmlElement> xmlElement(xmlDoc.getDocumentElement(true));

  2080.     CARLA_SAFE_ASSERT_RETURN_ERR(xmlElement != nullptr, "Failed to parse project file");

  2081. 

  2082.     const String& xmlType(xmlElement->getTagName());

  2083.     const bool isPreset(xmlType.equalsIgnoreCase("carla-preset"));

  2084. 

  2085.     if (! (xmlType.equalsIgnoreCase("carla-project") || isPreset))

  2086.     {

  2087.         callback(ENGINE_CALLBACK_PROJECT_LOAD_FINISHED, 0, 0, 0, 0.0f, nullptr);

  2088.         setLastError("Not a valid Carla project or preset file");

  2089.         return false;

  2090.     }

  2091. 

  2092.     pData->actionCanceled = false;

  2093.     callback(ENGINE_CALLBACK_CANCELABLE_ACTION, 0, 1, 0, 0.0f, "Loading project");

  2094. 

  2095. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  2096.     const ScopedValueSetter<bool> _svs2(pData->loadingProject, true, false);

  2097. #endif

  2098. 

  2099.     // completely load file

  2100.     xmlElement = xmlDoc.getDocumentElement(false);

  2101.     CARLA_SAFE_ASSERT_RETURN_ERR(xmlElement != nullptr, "Failed to completely parse project file");

  2102. 

  2103.     callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2104. 

  2105.     if (pData->aboutToClose)

  2106.         return true;

  2107. 

  2108.     if (pData->actionCanceled)

  2109.     {

  2110.         setLastError("Project load canceled");

  2111.         return false;

  2112.     }

  2113. 

  2114.     const bool isPlugin(getType() == kEngineTypePlugin);

  2115. 

  2116.     // load engine settings first of all

  2117.     if (XmlElement* const elem = isPreset ? nullptr : xmlElement->getChildByName("EngineSettings"))

  2118.     {

  2119.         for (XmlElement* settElem = elem->getFirstChildElement(); settElem != nullptr; settElem = settElem->getNextElement())

  2120.         {

  2121.             const String& tag(settElem->getTagName());

  2122.             const String  text(settElem->getAllSubText().trim());

  2123. 

  2124.             /** some settings might be incorrect or require extra work,

  2125.                 so we call setOption rather than modifying them direly */

  2126. 

  2127.             int option = -1;

  2128.             int value  = 0;

  2129.             const char* valueStr = nullptr;

  2130. 

  2131.             /**/ if (tag == "ForceStereo")

  2132.             {

  2133.                 option = ENGINE_OPTION_FORCE_STEREO;

  2134.                 value  = text == "true" ? 1 : 0;

  2135.             }

  2136.             else if (tag == "PreferPluginBridges")

  2137.             {

  2138.                 option = ENGINE_OPTION_PREFER_PLUGIN_BRIDGES;

  2139.                 value  = text == "true" ? 1 : 0;

  2140.             }

  2141.             else if (tag == "PreferUiBridges")

  2142.             {

  2143.                 option = ENGINE_OPTION_PREFER_UI_BRIDGES;

  2144.                 value  = text == "true" ? 1 : 0;

  2145.             }

  2146.             else if (tag == "UIsAlwaysOnTop")

  2147.             {

  2148.                 option = ENGINE_OPTION_UIS_ALWAYS_ON_TOP;

  2149.                 value  = text == "true" ? 1 : 0;

  2150.             }

  2151.             else if (tag == "MaxParameters")

  2152.             {

  2153.                 option = ENGINE_OPTION_MAX_PARAMETERS;

  2154.                 value  = text.getIntValue();

  2155.             }

  2156.             else if (tag == "UIBridgesTimeout")

  2157.             {

  2158.                 option = ENGINE_OPTION_UI_BRIDGES_TIMEOUT;

  2159.                 value  = text.getIntValue();

  2160.             }

  2161.             else if (isPlugin)

  2162.             {

  2163.                 /**/ if (tag == "LADSPA_PATH")

  2164.                 {

  2165.                     option   = ENGINE_OPTION_PLUGIN_PATH;

  2166.                     value    = PLUGIN_LADSPA;

  2167.                     valueStr = text.toRawUTF8();

  2168.                 }

  2169.                 else if (tag == "DSSI_PATH")

  2170.                 {

  2171.                     option   = ENGINE_OPTION_PLUGIN_PATH;

  2172.                     value    = PLUGIN_DSSI;

  2173.                     valueStr = text.toRawUTF8();

  2174.                 }

  2175.                 else if (tag == "LV2_PATH")

  2176.                 {

  2177.                     option   = ENGINE_OPTION_PLUGIN_PATH;

  2178.                     value    = PLUGIN_LV2;

  2179.                     valueStr = text.toRawUTF8();

  2180.                 }

  2181.                 else if (tag == "VST2_PATH")

  2182.                 {

  2183.                     option   = ENGINE_OPTION_PLUGIN_PATH;

  2184.                     value    = PLUGIN_VST2;

  2185.                     valueStr = text.toRawUTF8();

  2186.                 }

  2187.                 else if (tag.equalsIgnoreCase("VST3_PATH"))

  2188.                 {

  2189.                     option   = ENGINE_OPTION_PLUGIN_PATH;

  2190.                     value    = PLUGIN_VST3;

  2191.                     valueStr = text.toRawUTF8();

  2192.                 }

  2193.                 else if (tag == "SF2_PATH")

  2194.                 {

  2195.                     option   = ENGINE_OPTION_PLUGIN_PATH;

  2196.                     value    = PLUGIN_SF2;

  2197.                     valueStr = text.toRawUTF8();

  2198.                 }

  2199.                 else if (tag == "SFZ_PATH")

  2200.                 {

  2201.                     option   = ENGINE_OPTION_PLUGIN_PATH;

  2202.                     value    = PLUGIN_SFZ;

  2203.                     valueStr = text.toRawUTF8();

  2204.                 }

  2205.             }

  2206. 

  2207.             if (option == -1)

  2208.             {

  2209.                 // check old stuff, unhandled now

  2210.                 if (tag == "GIG_PATH")

  2211.                     continue;

  2212.                 // ignored tags

  2213.                 if (tag == "LADSPA_PATH" || tag == "DSSI_PATH" || tag == "LV2_PATH" || tag == "VST2_PATH")

  2214.                     continue;

  2215.                 if (tag == "VST3_PATH" || tag == "AU_PATH")

  2216.                     continue;

  2217.                 if (tag == "SF2_PATH" || tag == "SFZ_PATH")

  2218.                     continue;

  2219. 

  2220.                 // hmm something is wrong..

  2221.                 carla_stderr2("CarlaEngine::loadProjectInternal() - Unhandled option '%s'", tag.toRawUTF8());

  2222.                 continue;

  2223.             }

  2224. 

  2225.             setOption(static_cast<EngineOption>(option), value, valueStr);

  2226.         }

  2227. 

  2228.         callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2229. 

  2230.         if (pData->aboutToClose)

  2231.             return true;

  2232. 

  2233.         if (pData->actionCanceled)

  2234.         {

  2235.             setLastError("Project load canceled");

  2236.             return false;

  2237.         }

  2238.     }

  2239. 

  2240.     // now setup transport

  2241.     if (XmlElement* const elem = (isPreset || isPlugin) ? nullptr : xmlElement->getChildByName("Transport"))

  2242.     {

  2243.         if (XmlElement* const bpmElem = elem->getChildByName("BeatsPerMinute"))

  2244.         {

  2245.             const String bpmText(bpmElem->getAllSubText().trim());

  2246.             const double bpm = bpmText.getDoubleValue();

  2247. 

  2248.             // some sane limits

  2249.             if (bpm >= 20.0 && bpm < 400.0)

  2250.                 pData->time.setBPM(bpm);

  2251. 

  2252.             callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2253. 

  2254.             if (pData->aboutToClose)

  2255.                 return true;

  2256. 

  2257.             if (pData->actionCanceled)

  2258.             {

  2259.                 setLastError("Project load canceled");

  2260.                 return false;

  2261.             }

  2262.         }

  2263.     }

  2264. 

  2265.     // and we handle plugins

  2266.     for (XmlElement* elem = xmlElement->getFirstChildElement(); elem != nullptr; elem = elem->getNextElement())

  2267.     {

  2268.         const String& tagName(elem->getTagName());

  2269. 

  2270.         if (isPreset || tagName == "Plugin")

  2271.         {

  2272.             CarlaStateSave stateSave;

  2273.             stateSave.fillFromXmlElement(isPreset ? xmlElement.get() : elem);

  2274. 

  2275.             callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2276. 

  2277.             if (pData->aboutToClose)

  2278.                 return true;

  2279. 

  2280.             if (pData->actionCanceled)

  2281.             {

  2282.                 setLastError("Project load canceled");

  2283.                 return false;

  2284.             }

  2285. 

  2286.             CARLA_SAFE_ASSERT_CONTINUE(stateSave.type != nullptr);

  2287. 

  2288. #ifndef BUILD_BRIDGE

  2289.             // compatibility code to load projects with GIG files

  2290.             // FIXME Remove on 2.1 release

  2291.             if (std::strcmp(stateSave.type, "GIG") == 0)

  2292.             {

  2293.                 if (addPlugin(PLUGIN_LV2, "", stateSave.name, "http://linuxsampler.org/plugins/linuxsampler", 0, nullptr))

  2294.                 {

  2295.                     const uint pluginId = pData->curPluginCount;

  2296. 

  2297.                     if (CarlaPlugin* const plugin = pData->plugins[pluginId].plugin)

  2298.                     {

  2299.                         callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2300. 

  2301.                         if (pData->aboutToClose)

  2302.                             return true;

  2303. 

  2304.                         if (pData->actionCanceled)

  2305.                         {

  2306.                             setLastError("Project load canceled");

  2307.                             return false;

  2308.                         }

  2309. 

  2310.                         String lsState;

  2311.                         lsState << "0.35\n";

  2312.                         lsState << "18 0 Chromatic\n";

  2313.                         lsState << "18 1 Drum Kits\n";

  2314.                         lsState << "20 0\n";

  2315.                         lsState << "0 1 " << stateSave.binary << "\n";

  2316.                         lsState << "0 0 0 0 1 0 GIG\n";

  2317. 

  2318.                         plugin->setCustomData(LV2_ATOM__String, "http://linuxsampler.org/schema#state-string", lsState.toRawUTF8(), true);

  2319.                         plugin->restoreLV2State();

  2320. 

  2321.                         plugin->setDryWet(stateSave.dryWet, true, true);

  2322.                         plugin->setVolume(stateSave.volume, true, true);

  2323.                         plugin->setBalanceLeft(stateSave.balanceLeft, true, true);

  2324.                         plugin->setBalanceRight(stateSave.balanceRight, true, true);

  2325.                         plugin->setPanning(stateSave.panning, true, true);

  2326.                         plugin->setCtrlChannel(stateSave.ctrlChannel, true, true);

  2327.                         plugin->setActive(stateSave.active, true, true);

  2328. 

  2329.                         ++pData->curPluginCount;

  2330. 

  2331.                         plugin->setEnabled(true);

  2332.                         callback(ENGINE_CALLBACK_PLUGIN_ADDED, pluginId, 0, 0, 0.0f, plugin->getName());

  2333. 

  2334.                         if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  2335.                             pData->graph.addPlugin(plugin);

  2336.                     }

  2337.                     else

  2338.                     {

  2339.                         carla_stderr2("Failed to get new plugin, state will not be restored correctly\n");

  2340.                     }

  2341.                 }

  2342.                 else

  2343.                 {

  2344.                     carla_stderr2("Failed to load a linuxsampler LV2 plugin, GIG file won't be loaded");

  2345.                 }

  2346. 

  2347.                 continue;

  2348.             }

  2349. #endif

  2350. 

  2351.             const void* extraStuff    = nullptr;

  2352.             static const char kTrue[] = "true";

  2353. 

  2354.             const PluginType ptype(getPluginTypeFromString(stateSave.type));

  2355. 

  2356.             switch (ptype)

  2357.             {

  2358.             case PLUGIN_SF2:

  2359.                 if (CarlaString(stateSave.label).endsWith(" (16 outs)"))

  2360.                     extraStuff = kTrue;

  2361.                 // fall through

  2362.             case PLUGIN_LADSPA:

  2363.             case PLUGIN_DSSI:

  2364.             case PLUGIN_VST2:

  2365.             case PLUGIN_VST3:

  2366.             case PLUGIN_SFZ:

  2367.                 if (stateSave.binary != nullptr && stateSave.binary[0] != '\0' &&

  2368.                     ! (File::isAbsolutePath(stateSave.binary) && File(stateSave.binary).exists()))

  2369.                 {

  2370.                     const char* searchPath;

  2371. 

  2372.                     switch (ptype)

  2373.                     {

  2374.                     case PLUGIN_LADSPA: searchPath = pData->options.pathLADSPA; break;

  2375.                     case PLUGIN_DSSI:   searchPath = pData->options.pathDSSI;   break;

  2376.                     case PLUGIN_VST2:   searchPath = pData->options.pathVST2;   break;

  2377.                     case PLUGIN_VST3:   searchPath = pData->options.pathVST3;   break;

  2378.                     case PLUGIN_SF2:    searchPath = pData->options.pathSF2;    break;

  2379.                     case PLUGIN_SFZ:    searchPath = pData->options.pathSFZ;    break;

  2380.                     default:            searchPath = nullptr;                   break;

  2381.                     }

  2382. 

  2383.                     if (searchPath != nullptr && searchPath[0] != '\0')

  2384.                     {

  2385.                         carla_stderr("Plugin binary '%s' doesn't exist on this filesystem, let's look for it...",

  2386.                                      stateSave.binary);

  2387. 

  2388.                         String result = findBinaryInCustomPath(searchPath, stateSave.binary);

  2389. 

  2390.                         if (result.isEmpty())

  2391.                         {

  2392.                             switch (ptype)

  2393.                             {

  2394.                             case PLUGIN_LADSPA: searchPath = std::getenv("LADSPA_PATH"); break;

  2395.                             case PLUGIN_DSSI:   searchPath = std::getenv("DSSI_PATH");   break;

  2396.                             case PLUGIN_VST2:   searchPath = std::getenv("VST_PATH");    break;

  2397.                             case PLUGIN_VST3:   searchPath = std::getenv("VST3_PATH");   break;

  2398.                             case PLUGIN_SF2:    searchPath = std::getenv("SF2_PATH");    break;

  2399.                             case PLUGIN_SFZ:    searchPath = std::getenv("SFZ_PATH");    break;

  2400.                             default:            searchPath = nullptr;                    break;

  2401.                             }

  2402. 

  2403.                             if (searchPath != nullptr && searchPath[0] != '\0')

  2404.                                 result = findBinaryInCustomPath(searchPath, stateSave.binary);

  2405.                         }

  2406. 

  2407.                         if (result.isNotEmpty())

  2408.                         {

  2409.                             delete[] stateSave.binary;

  2410.                             stateSave.binary = carla_strdup(result.toRawUTF8());

  2411.                             carla_stderr("Found it! :)");

  2412.                         }

  2413.                         else

  2414.                         {

  2415.                             carla_stderr("Damn, we failed... :(");

  2416.                         }

  2417.                     }

  2418.                 }

  2419.                 break;

  2420.             default:

  2421.                 break;

  2422.             }

  2423. 

  2424.             BinaryType btype;

  2425. 

  2426.             switch (ptype)

  2427.             {

  2428.             case PLUGIN_LADSPA:

  2429.             case PLUGIN_DSSI:

  2430.             case PLUGIN_LV2:

  2431.             case PLUGIN_VST2:

  2432.                 btype = getBinaryTypeFromFile(stateSave.binary);

  2433.                 break;

  2434.             default:

  2435.                 btype = BINARY_NATIVE;

  2436.                 break;

  2437.             }

  2438. 

  2439.             if (addPlugin(btype, ptype, stateSave.binary,

  2440.                           stateSave.name, stateSave.label, stateSave.uniqueId, extraStuff, stateSave.options))

  2441.             {

  2442. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  2443.                 const uint pluginId = pData->curPluginCount;

  2444. #else

  2445.                 const uint pluginId = 0;

  2446. #endif

  2447. 

  2448.                 if (CarlaPlugin* const plugin = pData->plugins[pluginId].plugin)

  2449.                 {

  2450.                     callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2451. 

  2452.                     if (pData->aboutToClose)

  2453.                         return true;

  2454. 

  2455.                     if (pData->actionCanceled)

  2456.                     {

  2457.                         setLastError("Project load canceled");

  2458.                         return false;

  2459.                     }

  2460. 

  2461.                     // deactivate bridge client-side ping check, since some plugins block during load

  2462.                     if ((plugin->getHints() & PLUGIN_IS_BRIDGE) != 0 && ! isPreset)

  2463.                         plugin->setCustomData(CUSTOM_DATA_TYPE_STRING, "__CarlaPingOnOff__", "false", false);

  2464. 

  2465.                     plugin->loadStateSave(stateSave);

  2466. 

  2467.                     /* NOTE: The following code is the same as the end of addPlugin().

  2468.                      *       When project is loading we do not enable the plugin right away,

  2469.                      *        as we want to load state first.

  2470.                      */

  2471.                     plugin->setEnabled(true);

  2472. 

  2473.                     ++pData->curPluginCount;

  2474.                     callback(ENGINE_CALLBACK_PLUGIN_ADDED, pluginId, 0, 0, 0.0f, plugin->getName());

  2475. 

  2476. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  2477.                     if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  2478.                         pData->graph.addPlugin(plugin);

  2479. #endif

  2480.                 }

  2481.                 else

  2482.                 {

  2483.                     carla_stderr2("Failed to get new plugin, state will not be restored correctly\n");

  2484.                 }

  2485.             }

  2486.             else

  2487.             {

  2488.                 carla_stderr2("Failed to load a plugin '%s', error was:\n%s", stateSave.name, getLastError());

  2489.             }

  2490.         }

  2491. 

  2492.         if (isPreset)

  2493.         {

  2494.             callback(ENGINE_CALLBACK_PROJECT_LOAD_FINISHED, 0, 0, 0, 0.0f, nullptr);

  2495.             callback(ENGINE_CALLBACK_CANCELABLE_ACTION, 0, 0, 0, 0.0f, "Loading project");

  2496.             return true;

  2497.         }

  2498.     }

  2499. 

  2500. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  2501.     // tell bridges we're done loading

  2502.     for (uint i=0; i < pData->curPluginCount; ++i)

  2503.     {

  2504.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  2505. 

  2506.         if (plugin != nullptr && plugin->isEnabled() && (plugin->getHints() & PLUGIN_IS_BRIDGE) != 0)

  2507.             plugin->setCustomData(CUSTOM_DATA_TYPE_STRING, "__CarlaPingOnOff__", "true", false);

  2508.     }

  2509. 

  2510.     callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2511. 

  2512.     if (pData->aboutToClose)

  2513.         return true;

  2514. 

  2515.     if (pData->actionCanceled)

  2516.     {

  2517.         setLastError("Project load canceled");

  2518.         return false;

  2519.     }

  2520. 

  2521.     bool hasInternalConnections = false;

  2522. 

  2523.     // and now we handle connections (internal)

  2524.     if (XmlElement* const elem = xmlElement->getChildByName("Patchbay"))

  2525.     {

  2526.         hasInternalConnections = true;

  2527. 

  2528.         if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  2529.         {

  2530.             CarlaString sourcePort, targetPort;

  2531.             const bool isUsingExternal(pData->graph.isUsingExternal());

  2532. 

  2533.             for (XmlElement* patchElem = elem->getFirstChildElement(); patchElem != nullptr; patchElem = patchElem->getNextElement())

  2534.             {

  2535.                 const String& patchTag(patchElem->getTagName());

  2536. 

  2537.                 if (patchTag != "Connection")

  2538.                     continue;

  2539. 

  2540.                 sourcePort.clear();

  2541.                 targetPort.clear();

  2542. 

  2543.                 for (XmlElement* connElem = patchElem->getFirstChildElement(); connElem != nullptr; connElem = connElem->getNextElement())

  2544.                 {

  2545.                     const String& tag(connElem->getTagName());

  2546.                     const String  text(connElem->getAllSubText().trim());

  2547. 

  2548.                     /**/ if (tag == "Source")

  2549.                         sourcePort = xmlSafeString(text, false).toRawUTF8();

  2550.                     else if (tag == "Target")

  2551.                         targetPort = xmlSafeString(text, false).toRawUTF8();

  2552.                 }

  2553. 

  2554.                 if (sourcePort.isNotEmpty() && targetPort.isNotEmpty())

  2555.                     restorePatchbayConnection(false, sourcePort, targetPort, !isUsingExternal);

  2556.             }

  2557. 

  2558.             callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2559. 

  2560.             if (pData->aboutToClose)

  2561.                 return true;

  2562. 

  2563.             if (pData->actionCanceled)

  2564.             {

  2565.                 setLastError("Project load canceled");

  2566.                 return false;

  2567.             }

  2568.         }

  2569.     }

  2570. 

  2571.     // if we're running inside some session-manager (and using JACK), let them handle the external connections

  2572.     bool loadExternalConnections;

  2573. 

  2574.     /**/ if (std::strcmp(getCurrentDriverName(), "JACK") != 0)

  2575.         loadExternalConnections = true;

  2576.     else if (std::getenv("CARLA_DONT_MANAGE_CONNECTIONS") != nullptr)

  2577.         loadExternalConnections = false;

  2578.     else if (std::getenv("LADISH_APP_NAME") != nullptr)

  2579.         loadExternalConnections = false;

  2580.     else if (std::getenv("NSM_URL") != nullptr)

  2581.         loadExternalConnections = false;

  2582.     else

  2583.         loadExternalConnections = true;

  2584. 

  2585.     // plus external connections too

  2586.     if (loadExternalConnections)

  2587.     {

  2588.         const bool isUsingExternal = pData->options.processMode != ENGINE_PROCESS_MODE_PATCHBAY ||

  2589.                                      pData->graph.isUsingExternal();

  2590.         const bool loadingAsExternal = pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY &&

  2591.                                        hasInternalConnections;

  2592. 

  2593.         for (XmlElement* elem = xmlElement->getFirstChildElement(); elem != nullptr; elem = elem->getNextElement())

  2594.         {

  2595.             const String& tagName(elem->getTagName());

  2596. 

  2597.             // check if we want to load patchbay-mode connections into an external (multi-client) graph

  2598.             if (tagName == "Patchbay")

  2599.             {

  2600.                 if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  2601.                     continue;

  2602.             }

  2603.             // or load external patchbay connections

  2604.             else if (tagName != "ExternalPatchbay")

  2605.             {

  2606.                 continue;

  2607.             }

  2608. 

  2609.             CarlaString sourcePort, targetPort;

  2610. 

  2611.             for (XmlElement* patchElem = elem->getFirstChildElement(); patchElem != nullptr; patchElem = patchElem->getNextElement())

  2612.             {

  2613.                 const String& patchTag(patchElem->getTagName());

  2614. 

  2615.                 if (patchTag != "Connection")

  2616.                     continue;

  2617. 

  2618.                 sourcePort.clear();

  2619.                 targetPort.clear();

  2620. 

  2621.                 for (XmlElement* connElem = patchElem->getFirstChildElement(); connElem != nullptr; connElem = connElem->getNextElement())

  2622.                 {

  2623.                     const String& tag(connElem->getTagName());

  2624.                     const String  text(connElem->getAllSubText().trim());

  2625. 

  2626.                     /**/ if (tag == "Source")

  2627.                         sourcePort = xmlSafeString(text, false).toRawUTF8();

  2628.                     else if (tag == "Target")

  2629.                         targetPort = xmlSafeString(text, false).toRawUTF8();

  2630.                 }

  2631. 

  2632.                 if (sourcePort.isNotEmpty() && targetPort.isNotEmpty())

  2633.                     restorePatchbayConnection(loadingAsExternal, sourcePort, targetPort, isUsingExternal);

  2634.             }

  2635.             break;

  2636.         }

  2637.     }

  2638. #endif

  2639. 

  2640.     callback(ENGINE_CALLBACK_PROJECT_LOAD_FINISHED, 0, 0, 0, 0.0f, nullptr);

  2641.     callback(ENGINE_CALLBACK_CANCELABLE_ACTION, 0, 0, 0, 0.0f, "Loading project");

  2642.     return true;

  2643. }

  2644. 

  2645. // -----------------------------------------------------------------------

  2646. 

  2647. CARLA_BACKEND_END_NAMESPACE