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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. using water::Array;

  44. using water::CharPointer_UTF8;

  45. using water::File;

  46. using water::MemoryOutputStream;

  47. using water::String;

  48. using water::StringArray;

  49. using water::XmlDocument;

  50. using water::XmlElement;

  51. 

  52. CARLA_BACKEND_START_NAMESPACE

  53. 

  54. // -----------------------------------------------------------------------

  55. // Carla Engine

  56. 

  57. CarlaEngine::CarlaEngine()

  58.     : pData(new ProtectedData(this))

  59. {

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

  61. }

  62. 

  63. CarlaEngine::~CarlaEngine()

  64. {

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

  66. 

  67.     delete pData;

  68. }

  69. 

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

  71. // Static calls

  72. 

  73. uint CarlaEngine::getDriverCount()

  74. {

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

  76. 

  77.     uint count = 0;

  78. 

  79.     if (jackbridge_is_ok())

  80.         count += 1;

  81. 

  82. #ifndef BUILD_BRIDGE

  83.     count += getRtAudioApiCount();

  84. #endif

  85. 

  86.     return count;

  87. }

  88. 

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

  90. {

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

  92. 

  93.     uint index(index2);

  94. 

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

  96.         return "JACK";

  97. 

  98. #ifndef BUILD_BRIDGE

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

  100.     {

  101.         if (index < count)

  102.             return getRtAudioApiName(index);

  103.     }

  104. #endif

  105. 

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

  107.     return nullptr;

  108. }

  109. 

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

  111. {

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

  113. 

  114.     uint index(index2);

  115. 

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

  117.     {

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

  119.         return ret;

  120.     }

  121. 

  122. #ifndef BUILD_BRIDGE

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

  124.     {

  125.         if (index < count)

  126.             return getRtAudioApiDeviceNames(index);

  127.     }

  128. #endif

  129. 

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

  131.     return nullptr;

  132. }

  133. 

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

  135. {

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

  137. 

  138.     uint index(index2);

  139. 

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

  141.     {

  142.         static uint32_t bufSizes[11] = { 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 0 };

  143.         static EngineDriverDeviceInfo devInfo;

  144.         devInfo.hints       = ENGINE_DRIVER_DEVICE_VARIABLE_BUFFER_SIZE;

  145.         devInfo.bufferSizes = bufSizes;

  146.         devInfo.sampleRates = nullptr;

  147.         return &devInfo;

  148.     }

  149. 

  150. #ifndef BUILD_BRIDGE

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

  152.     {

  153.         if (index < count)

  154.             return getRtAudioDeviceInfo(index, deviceName);

  155.     }

  156. #endif

  157. 

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

  159.     return nullptr;

  160. }

  161. 

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

  163. {

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

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

  166. 

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

  168.         return newJack();

  169. 

  170. #ifndef BUILD_BRIDGE

  171.     // -------------------------------------------------------------------

  172.     // common

  173. 

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

  175.         return newRtAudio(AUDIO_API_NULL);

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

  177.         return newRtAudio(AUDIO_API_JACK);

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

  179.         return newRtAudio(AUDIO_API_OSS);

  180. 

  181.     // -------------------------------------------------------------------

  182.     // linux

  183. 

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

  185.         return newRtAudio(AUDIO_API_ALSA);

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

  187.         return newRtAudio(AUDIO_API_PULSEAUDIO);

  188. 

  189.     // -------------------------------------------------------------------

  190.     // macos

  191. 

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

  193.         return newRtAudio(AUDIO_API_COREAUDIO);

  194. 

  195.     // -------------------------------------------------------------------

  196.     // windows

  197. 

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

  199.         return newRtAudio(AUDIO_API_ASIO);

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

  201.         return newRtAudio(AUDIO_API_DIRECTSOUND);

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

  203.         return newRtAudio(AUDIO_API_WASAPI);

  204. #endif

  205. 

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

  207.     return nullptr;

  208. }

  209. 

  210. // -----------------------------------------------------------------------

  211. // Constant values

  212. 

  213. uint CarlaEngine::getMaxClientNameSize() const noexcept

  214. {

  215.     return STR_MAX/2;

  216. }

  217. 

  218. uint CarlaEngine::getMaxPortNameSize() const noexcept

  219. {

  220.     return STR_MAX;

  221. }

  222. 

  223. uint CarlaEngine::getCurrentPluginCount() const noexcept

  224. {

  225.     return pData->curPluginCount;

  226. }

  227. 

  228. uint CarlaEngine::getMaxPluginNumber() const noexcept

  229. {

  230.     return pData->maxPluginNumber;

  231. }

  232. 

  233. // -----------------------------------------------------------------------

  234. // Virtual, per-engine type calls

  235. 

  236. bool CarlaEngine::close()

  237. {

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

  239. 

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

  241.     {

  242.         pData->aboutToClose = true;

  243.         removeAllPlugins();

  244.     }

  245. 

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

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

  248.         oscSend_control_exit();

  249. #endif

  250. 

  251.     pData->close();

  252. 

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

  254.     return true;

  255. }

  256. 

  257. bool CarlaEngine::usesConstantBufferSize() const noexcept

  258. {

  259.     return true;

  260. }

  261. 

  262. void CarlaEngine::idle() noexcept

  263. {

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

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

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

  267. 

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

  269.     {

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

  271. 

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

  273.         {

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

  275. 

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

  277.             {

  278.                 try {

  279.                     plugin->uiIdle();

  280.                 } CARLA_SAFE_EXCEPTION_CONTINUE("Plugin uiIdle");

  281.             }

  282.         }

  283.     }

  284. 

  285. #ifdef HAVE_LIBLO

  286.     pData->osc.idle();

  287. #endif

  288. }

  289. 

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

  291. {

  292.     return new CarlaEngineClient(*this);

  293. }

  294. 

  295. // -----------------------------------------------------------------------

  296. // Plugin management

  297. 

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

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

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

  301. {

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

  303. #ifndef BUILD_BRIDGE

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

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

  306. #endif

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

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

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

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

  311.     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);

  312. 

  313.     uint id;

  314. 

  315. #ifndef BUILD_BRIDGE

  316.     CarlaPlugin* oldPlugin = nullptr;

  317. 

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

  319.     {

  320.         id = pData->nextPluginId;

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

  322. 

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

  324. 

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

  326.     }

  327.     else

  328. #endif

  329.     {

  330.         id = pData->curPluginCount;

  331. 

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

  333.         {

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

  335.             return false;

  336.         }

  337. 

  338. #ifndef BUILD_BRIDGE

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

  340. #endif

  341.     }

  342. 

  343.     CarlaPlugin::Initializer initializer = {

  344.         this,

  345.         id,

  346.         filename,

  347.         name,

  348.         label,

  349.         uniqueId,

  350.         options

  351.     };

  352. 

  353.     CarlaPlugin* plugin = nullptr;

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

  355. 

  356.     if (bridgeBinary.isNotEmpty())

  357.     {

  358. #ifndef CARLA_OS_WIN

  359.         if (btype == BINARY_NATIVE)

  360.         {

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

  362.         }

  363.         else

  364. #endif

  365.         {

  366.             switch (btype)

  367.             {

  368.             case BINARY_POSIX32:

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

  370.                 break;

  371.             case BINARY_POSIX64:

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

  373.                 break;

  374.             case BINARY_WIN32:

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

  376.                 break;

  377.             case BINARY_WIN64:

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

  379.                 break;

  380.             default:

  381.                 bridgeBinary.clear();

  382.                 break;

  383.             }

  384.         }

  385. 

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

  387.             bridgeBinary.clear();

  388.     }

  389. 

  390.     // Prefer bridges for some specific plugins

  391.     bool preferBridges = pData->options.preferPluginBridges;

  392. 

  393. #ifndef BUILD_BRIDGE

  394.     if (! preferBridges)

  395.     {

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

  397.         {

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

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

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

  401.             {

  402.                 preferBridges = true;

  403.             }

  404.         }

  405. # if 0

  406.         else if (ptype == PLUGIN_VST2)

  407.         {

  408.             /*

  409.             char uniqueIdChars[5] = {

  410.                 static_cast<char>((uniqueId & 0xFF000000) >> 24),

  411.                 static_cast<char>((uniqueId & 0x00FF0000) >> 16),

  412.                 static_cast<char>((uniqueId & 0x0000FF00) >>  8),

  413.                 static_cast<char>((uniqueId & 0x000000FF) >>  1),

  414.                 0

  415.             };

  416.             */

  417. 

  418.             /**/ if (uniqueId == 1633895765 && std::strstr(filename, "/ACE.") != nullptr)

  419.                 preferBridges = true;

  420.             else if (uniqueId == 1433421876 && std::strstr(filename, "/Bazille.") != nullptr)

  421.                 preferBridges = true;

  422.             else if (uniqueId == 1147754081 && std::strstr(filename, "/Diva.") != nullptr)

  423.                 preferBridges = true;

  424.             else if (uniqueId == 1095583057 && std::strstr(filename, "/Filterscape.") != nullptr)

  425.                 preferBridges = true;

  426.             else if (uniqueId == 1179866689 && std::strstr(filename, "/Filterscape.") != nullptr)

  427.                 preferBridges = true;

  428.             else if (uniqueId == 1179865398 && std::strstr(filename, "/Filterscape.") != nullptr)

  429.                 preferBridges = true;

  430.             else if (uniqueId == 1749636677 && std::strstr(filename, "/Hive.") != nullptr)

  431.                 preferBridges = true;

  432.             else if (uniqueId == 1296452914 && std::strstr(filename, "/MFM2.") != nullptr)

  433.                 preferBridges = true;

  434.             else if (uniqueId == 1349477487 && std::strstr(filename, "/Podolski.") != nullptr)

  435.                 preferBridges = true;

  436.             else if (uniqueId == 1886548821 && std::strstr(filename, "/Presswerk.") != nullptr)

  437.                 preferBridges = true;

  438.             else if (uniqueId == 1969770582 && std::strstr(filename, "/Protoverb.") != nullptr)

  439.                 preferBridges = true;

  440.             else if (uniqueId == 1969771348 && std::strstr(filename, "/Satin.") != nullptr)

  441.                 preferBridges = true;

  442.             else if (uniqueId == 1667388281 && std::strstr(filename, "/TripleCheese.") != nullptr)

  443.                 preferBridges = true;

  444.             else if (uniqueId == 1952017974 && std::strstr(filename, "/TyrellN6.") != nullptr)

  445.                 preferBridges = true;

  446.             else if (uniqueId == 1432568113 && std::strstr(filename, "/Uhbik.") != nullptr)

  447.                 preferBridges = true;

  448.             else if (uniqueId == 1432568881 && std::strstr(filename, "/Uhbik.") != nullptr)

  449.                 preferBridges = true;

  450.             else if (uniqueId == 1432572209 && std::strstr(filename, "/Uhbik.") != nullptr)

  451.                 preferBridges = true;

  452.             else if (uniqueId == 1432569393 && std::strstr(filename, "/Uhbik.") != nullptr)

  453.                 preferBridges = true;

  454.             else if (uniqueId == 1432569649 && std::strstr(filename, "/Uhbik.") != nullptr)

  455.                 preferBridges = true;

  456.             else if (uniqueId == 1432571953 && std::strstr(filename, "/Uhbik.") != nullptr)

  457.                 preferBridges = true;

  458.             else if (uniqueId == 1382232375 && std::strstr(filename, "/Uhbik.") != nullptr)

  459.                 preferBridges = true;

  460.             else if (uniqueId == 1432572721 && std::strstr(filename, "/Uhbik.") != nullptr)

  461.                 preferBridges = true;

  462.             else if (uniqueId == 1432572977 && std::strstr(filename, "/Uhbik.") != nullptr)

  463.                 preferBridges = true;

  464.             else if (uniqueId == 1397572658 && std::strstr(filename, "/Zebra2.") != nullptr)

  465.                 preferBridges = true;

  466.             else if (uniqueId == 1397572659 && std::strstr(filename, "/Zebra2.") != nullptr)

  467.                 preferBridges = true;

  468.             else if (uniqueId == 1919243824 && std::strstr(filename, "/Zebra2.") != nullptr)

  469.                 preferBridges = true;

  470.             else if (uniqueId == 1397578034 && std::strstr(filename, "/Zebra2.") != nullptr)

  471.                 preferBridges = true;

  472.             else if (uniqueId == 1397573722 && std::strstr(filename, "/ZebraHZ.") != nullptr)

  473.                 preferBridges = true;

  474.         }

  475. # endif

  476.     }

  477. #endif // ! BUILD_BRIDGE

  478. 

  479.     if (ptype != PLUGIN_INTERNAL && (btype != BINARY_NATIVE || (preferBridges && bridgeBinary.isNotEmpty())))

  480.     {

  481.         if (bridgeBinary.isNotEmpty())

  482.         {

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

  484.         }

  485.         else

  486.         {

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

  488.             return false;

  489.         }

  490.     }

  491.     else

  492.     {

  493.         bool use16Outs;

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

  495. 

  496.         switch (ptype)

  497.         {

  498.         case PLUGIN_NONE:

  499.             break;

  500. 

  501.         case PLUGIN_INTERNAL:

  502.             /*if (std::strcmp(label, "FluidSynth") == 0)

  503.             {

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

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

  506.             }

  507.             else if (std::strcmp(label, "LinuxSampler (GIG)") == 0)

  508.             {

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

  510.                 plugin = CarlaPlugin::newLinuxSampler(initializer, "GIG", use16Outs);

  511.             }

  512.             else if (std::strcmp(label, "LinuxSampler (SF2)") == 0)

  513.             {

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

  515.                 plugin = CarlaPlugin::newLinuxSampler(initializer, "SF2", use16Outs);

  516.             }

  517.             else if (std::strcmp(label, "LinuxSampler (SFZ)") == 0)

  518.             {

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

  520.                 plugin = CarlaPlugin::newLinuxSampler(initializer, "SFZ", use16Outs);

  521.             }*/

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

  523.             break;

  524. 

  525.         case PLUGIN_LADSPA:

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

  527.             break;

  528. 

  529.         case PLUGIN_DSSI:

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

  531.             break;

  532. 

  533.         case PLUGIN_LV2:

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

  535.             break;

  536. 

  537.         case PLUGIN_VST2:

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

  539.             break;

  540. 

  541.         case PLUGIN_GIG:

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

  543.             plugin = CarlaPlugin::newFileGIG(initializer, use16Outs);

  544.             break;

  545. 

  546.         case PLUGIN_SF2:

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

  548.             plugin = CarlaPlugin::newFileSF2(initializer, use16Outs);

  549.             break;

  550. 

  551.         case PLUGIN_SFZ:

  552.             plugin = CarlaPlugin::newFileSFZ(initializer);

  553.             break;

  554. 

  555.         case PLUGIN_JACK:

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

  557.             break;

  558.         }

  559.     }

  560. 

  561.     if (plugin == nullptr)

  562.         return false;

  563. 

  564.     plugin->reload();

  565. 

  566. #ifndef BUILD_BRIDGE

  567.     bool canRun = true;

  568. 

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

  570.     {

  571.         /**/ if (! plugin->canRunInRack())

  572.         {

  573.             setLastError("Carla's rack mode can only work with Mono or Stereo plugins, sorry!");

  574.             canRun = false;

  575.         }

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

  577.         {

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

  579.             canRun = false;

  580.         }

  581.     }

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

  583.     {

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

  585.         {

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

  587.             canRun = false;

  588.         }

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

  590.         {

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

  592.             canRun = false;

  593.         }

  594.     }

  595. 

  596.     if (! canRun)

  597.     {

  598.         delete plugin;

  599.         return false;

  600.     }

  601. 

  602. # ifdef HAVE_LIBLO

  603.     plugin->registerToOscClient();

  604. # endif

  605. #endif

  606. 

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

  608.     pluginData.plugin      = plugin;

  609.     pluginData.insPeak[0]  = 0.0f;

  610.     pluginData.insPeak[1]  = 0.0f;

  611.     pluginData.outsPeak[0] = 0.0f;

  612.     pluginData.outsPeak[1] = 0.0f;

  613. 

  614. #ifndef BUILD_BRIDGE

  615.     if (oldPlugin != nullptr)

  616.     {

  617.         CARLA_SAFE_ASSERT(! pData->loadingProject);

  618. 

  619.         const ScopedThreadStopper sts(this);

  620. 

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

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

  623. 

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

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

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

  627. 

  628.         delete oldPlugin;

  629. 

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

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

  632. 

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

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

  635. 

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

  637.         plugin->setEnabled(true);

  638. 

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

  640.     }

  641.     else if (! pData->loadingProject)

  642. #endif

  643.     {

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

  645.         plugin->setEnabled(true);

  646. 

  647.         ++pData->curPluginCount;

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

  649. 

  650. #ifndef BUILD_BRIDGE

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

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

  653. #endif

  654.     }

  655. 

  656.     return true;

  657. }

  658. 

  659. 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)

  660. {

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

  662. }

  663. 

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

  665. {

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

  667. #ifndef BUILD_BRIDGE

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

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

  670. #endif

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

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

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

  674. 

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

  676. 

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

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

  679. 

  680.     const ScopedThreadStopper sts(this);

  681. 

  682. #ifndef BUILD_BRIDGE

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

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

  685. 

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

  687. 

  688.     /*

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

  690.     {

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

  692.         CARLA_SAFE_ASSERT_BREAK(plugin2 != nullptr);

  693.         plugin2->updateOscURL();

  694.     }

  695.     */

  696. 

  697. # ifdef HAVE_LIBLO

  698.     if (isOscControlRegistered())

  699.         oscSend_control_remove_plugin(id);

  700. # endif

  701. #else

  702.     pData->curPluginCount = 0;

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

  704. #endif

  705. 

  706.     delete plugin;

  707. 

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

  709.     return true;

  710. }

  711. 

  712. bool CarlaEngine::removeAllPlugins()

  713. {

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

  715. #ifndef BUILD_BRIDGE

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

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

  718. #endif

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

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

  721. 

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

  723.         return true;

  724. 

  725.     const ScopedThreadStopper sts(this);

  726. 

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

  728. 

  729. #ifndef BUILD_BRIDGE

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

  731.         pData->graph.removeAllPlugins();

  732. 

  733. # ifdef HAVE_LIBLO

  734.     if (isOscControlRegistered())

  735.     {

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

  737.             oscSend_control_remove_plugin(curPluginCount-i-1);

  738.     }

  739. # endif

  740. #endif

  741. 

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

  743. 

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

  745. 

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

  747.     {

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

  749. 

  750.         if (pluginData.plugin != nullptr)

  751.         {

  752.             delete pluginData.plugin;

  753.             pluginData.plugin = nullptr;

  754.         }

  755. 

  756.         pluginData.insPeak[0]  = 0.0f;

  757.         pluginData.insPeak[1]  = 0.0f;

  758.         pluginData.outsPeak[0] = 0.0f;

  759.         pluginData.outsPeak[1] = 0.0f;

  760. 

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

  762.     }

  763. 

  764.     return true;

  765. }

  766. 

  767. #ifndef BUILD_BRIDGE

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

  769. {

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

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

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

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

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

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

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

  777. 

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

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

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

  781. 

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

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

  784. 

  785.     plugin->setName(uniqueName);

  786. 

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

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

  789. 

  790.     delete[] uniqueName;

  791.     return plugin->getName();

  792. }

  793. 

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

  795. {

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

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

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

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

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

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

  802. 

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

  804. 

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

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

  807. 

  808.     char label[STR_MAX+1];

  809.     carla_zeroChars(label, STR_MAX+1);

  810.     plugin->getLabel(label);

  811. 

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

  813. 

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

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

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

  817.         return false;

  818. 

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

  820. 

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

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

  823. 

  824.     return true;

  825. }

  826. 

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

  828. {

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

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

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

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

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

  834. 

  835.     // might use this to reset

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

  837.     {

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

  839.         return true;

  840.     }

  841. 

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

  843. 

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

  845. 

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

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

  848. 

  849.     pData->nextPluginId = id;

  850. 

  851.     return true;

  852. }

  853. 

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

  855. {

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

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

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

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

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

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

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

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

  864. 

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

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

  867. 

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

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

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

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

  872. 

  873.     const ScopedThreadStopper sts(this);

  874. 

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

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

  877. 

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

  879. 

  880.     // TODO

  881.     /*

  882.     pluginA->updateOscURL();

  883.     pluginB->updateOscURL();

  884. 

  885.     if (isOscControlRegistered())

  886.         oscSend_control_switch_plugins(idA, idB);

  887.     */

  888. 

  889.     return true;

  890. }

  891. #endif

  892. 

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

  894. {

  895. #ifndef BUILD_BRIDGE

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

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

  898. #endif

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

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

  901. 

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

  903. }

  904. 

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

  906. {

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

  908. }

  909. 

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

  911. {

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

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

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

  915. 

  916.     CarlaString sname;

  917.     sname = name;

  918. 

  919.     if (sname.isEmpty())

  920.     {

  921.         sname = "(No name)";

  922.         return sname.dup();

  923.     }

  924. 

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

  926. 

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

  928.         return sname.dup();

  929. 

  930.     sname.truncate(maxNameSize);

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

  932. 

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

  934.     {

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

  936. 

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

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

  939.         {

  940.             if (sname != pluginName)

  941.                 continue;

  942.         }

  943. 

  944.         // Check if string has already been modified

  945.         {

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

  947. 

  948.             // 1 digit, ex: " (2)"

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

  950.             {

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

  952. 

  953.                 if (number == 9)

  954.                 {

  955.                     // next number is 10, 2 digits

  956.                     sname.truncate(len-4);

  957.                     sname += " (10)";

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

  959.                 }

  960.                 else

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

  962. 

  963.                 continue;

  964.             }

  965. 

  966.             // 2 digits, ex: " (11)"

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

  968.             {

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

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

  971. 

  972.                 if (n2 == '9')

  973.                 {

  974.                     n2 = '0';

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

  976.                 }

  977.                 else

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

  979. 

  980.                 sname[len-2] = n2;

  981.                 sname[len-3] = n3;

  982. 

  983.                 continue;

  984.             }

  985.         }

  986. 

  987.         // Modify string if not

  988.         sname += " (2)";

  989.     }

  990. 

  991.     return sname.dup();

  992. }

  993. 

  994. // -----------------------------------------------------------------------

  995. // Project management

  996. 

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

  998. {

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

  1000.     CARLA_SAFE_ASSERT_RETURN_ERR(filename != nullptr && filename[0] != '\0', "Invalid filename");

  1001.     carla_debug("CarlaEngine::loadFile(\"%s\")", filename);

  1002. 

  1003.     const String jfilename = String(CharPointer_UTF8(filename));

  1004.     File file(jfilename);

  1005.     CARLA_SAFE_ASSERT_RETURN_ERR(file.exists(), "Requested file does not exist or is not a readable");

  1006. 

  1007.     CarlaString baseName(file.getFileNameWithoutExtension().toRawUTF8());

  1008.     CarlaString extension(file.getFileExtension().replace(".","").toLowerCase().toRawUTF8());

  1009. 

  1010.     const uint curPluginId(pData->nextPluginId < pData->curPluginCount ? pData->nextPluginId : pData->curPluginCount);

  1011. 

  1012.     // -------------------------------------------------------------------

  1013.     // NOTE: please keep in sync with carla_get_supported_file_extensions!!

  1014. 

  1015.     if (extension == "carxp" || extension == "carxs")

  1016.         return loadProject(filename);

  1017. 

  1018.     // -------------------------------------------------------------------

  1019. 

  1020.     if (extension == "gig")

  1021.         return addPlugin(PLUGIN_GIG, filename, baseName, baseName, 0, nullptr);

  1022. 

  1023.     if (extension == "sf2")

  1024.         return addPlugin(PLUGIN_SF2, filename, baseName, baseName, 0, nullptr);

  1025. 

  1026.     if (extension == "sfz")

  1027.         return addPlugin(PLUGIN_SFZ, filename, baseName, baseName, 0, nullptr);

  1028. 

  1029.     // -------------------------------------------------------------------

  1030. 

  1031.     if (

  1032. #ifdef HAVE_SNDFILE

  1033.         extension == "aif"  ||

  1034.         extension == "aiff" ||

  1035.         extension == "bwf"  ||

  1036.         extension == "flac" ||

  1037.         extension == "oga"  ||

  1038.         extension == "ogg"  ||

  1039.         extension == "w64"  ||

  1040.         extension == "wav"  ||

  1041. #endif

  1042. #ifdef HAVE_FFMPEG

  1043.         extension == "3g2" ||

  1044.         extension == "3gp" ||

  1045.         extension == "aac" ||

  1046.         extension == "ac3" ||

  1047.         extension == "amr" ||

  1048.         extension == "ape" ||

  1049.         extension == "mp2" ||

  1050.         extension == "mp3" ||

  1051.         extension == "mpc" ||

  1052.         extension == "wma" ||

  1053. #endif

  1054.         false

  1055.        )

  1056.     {

  1057.         if (addPlugin(PLUGIN_INTERNAL, nullptr, baseName, "audiofile", 0, nullptr))

  1058.         {

  1059.             if (CarlaPlugin* const plugin = getPlugin(curPluginId))

  1060.                 plugin->setCustomData(CUSTOM_DATA_TYPE_STRING, "file", filename, true);

  1061.             return true;

  1062.         }

  1063.         return false;

  1064.     }

  1065. 

  1066.     // -------------------------------------------------------------------

  1067. 

  1068.     if (extension == "mid" || extension == "midi")

  1069.     {

  1070.         if (addPlugin(PLUGIN_INTERNAL, nullptr, baseName, "midifile", 0, nullptr))

  1071.         {

  1072.             if (CarlaPlugin* const plugin = getPlugin(curPluginId))

  1073.                 plugin->setCustomData(CUSTOM_DATA_TYPE_STRING, "file", filename, true);

  1074.             return true;

  1075.         }

  1076.         return false;

  1077.     }

  1078. 

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

  1080.     // ZynAddSubFX

  1081. 

  1082.     if (extension == "xmz" || extension == "xiz")

  1083.     {

  1084. #ifdef HAVE_ZYN_DEPS

  1085.         CarlaString nicerName("Zyn - ");

  1086. 

  1087.         const std::size_t sep(baseName.find('-')+1);

  1088. 

  1089.         if (sep < baseName.length())

  1090.             nicerName += baseName.buffer()+sep;

  1091.         else

  1092.             nicerName += baseName;

  1093. 

  1094.         //nicerName

  1095.         if (addPlugin(PLUGIN_INTERNAL, nullptr, nicerName, "zynaddsubfx", 0, nullptr))

  1096.         {

  1097.             callback(ENGINE_CALLBACK_UI_STATE_CHANGED, curPluginId, 0, 0, 0.0f, nullptr);

  1098. 

  1099.             if (CarlaPlugin* const plugin = getPlugin(curPluginId))

  1100.                 plugin->setCustomData(CUSTOM_DATA_TYPE_STRING, (extension == "xmz") ? "CarlaAlternateFile1" : "CarlaAlternateFile2", filename, true);

  1101.             return true;

  1102.         }

  1103.         return false;

  1104. #else

  1105.         setLastError("This Carla build does not have ZynAddSubFX support");

  1106.         return false;

  1107. #endif

  1108.     }

  1109. 

  1110.     // -------------------------------------------------------------------

  1111.     // Direct plugin binaries

  1112. 

  1113. #ifdef CARLA_OS_MAC

  1114.     if (extension == "vst")

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

  1116. #else

  1117.     if (extension == "dll" || extension == "so")

  1118.         return addPlugin(getBinaryTypeFromFile(filename), PLUGIN_VST2, filename, nullptr, nullptr, 0, nullptr, 0x0);

  1119. #endif

  1120. 

  1121.     // -------------------------------------------------------------------

  1122. 

  1123.     setLastError("Unknown file extension");

  1124.     return false;

  1125. }

  1126. 

  1127. bool CarlaEngine::loadProject(const char* const filename)

  1128. {

  1129.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->isIdling == 0, "An operation is still being processed, please wait for it to finish");

  1130.     CARLA_SAFE_ASSERT_RETURN_ERR(filename != nullptr && filename[0] != '\0', "Invalid filename");

  1131.     carla_debug("CarlaEngine::loadProject(\"%s\")", filename);

  1132. 

  1133.     const String jfilename = String(CharPointer_UTF8(filename));

  1134.     File file(jfilename);

  1135.     CARLA_SAFE_ASSERT_RETURN_ERR(file.existsAsFile(), "Requested file does not exist or is not a readable file");

  1136. 

  1137.     XmlDocument xml(file);

  1138.     return loadProjectInternal(xml);

  1139. }

  1140. 

  1141. bool CarlaEngine::saveProject(const char* const filename)

  1142. {

  1143.     CARLA_SAFE_ASSERT_RETURN_ERR(filename != nullptr && filename[0] != '\0', "Invalid filename");

  1144.     carla_debug("CarlaEngine::saveProject(\"%s\")", filename);

  1145. 

  1146.     MemoryOutputStream out;

  1147.     saveProjectInternal(out);

  1148. 

  1149.     const String jfilename = String(CharPointer_UTF8(filename));

  1150.     File file(jfilename);

  1151. 

  1152.     if (file.replaceWithData(out.getData(), out.getDataSize()))

  1153.         return true;

  1154. 

  1155.     setLastError("Failed to write file");

  1156.     return false;

  1157. }

  1158. 

  1159. // -----------------------------------------------------------------------

  1160. // Information (base)

  1161. 

  1162. uint CarlaEngine::getHints() const noexcept

  1163. {

  1164.     return pData->hints;

  1165. }

  1166. 

  1167. uint32_t CarlaEngine::getBufferSize() const noexcept

  1168. {

  1169.     return pData->bufferSize;

  1170. }

  1171. 

  1172. double CarlaEngine::getSampleRate() const noexcept

  1173. {

  1174.     return pData->sampleRate;

  1175. }

  1176. 

  1177. const char* CarlaEngine::getName() const noexcept

  1178. {

  1179.     return pData->name;

  1180. }

  1181. 

  1182. EngineProcessMode CarlaEngine::getProccessMode() const noexcept

  1183. {

  1184.     return pData->options.processMode;

  1185. }

  1186. 

  1187. const EngineOptions& CarlaEngine::getOptions() const noexcept

  1188. {

  1189.     return pData->options;

  1190. }

  1191. 

  1192. const EngineTimeInfo& CarlaEngine::getTimeInfo() const noexcept

  1193. {

  1194.     return pData->timeInfo;

  1195. }

  1196. 

  1197. // -----------------------------------------------------------------------

  1198. // Information (peaks)

  1199. 

  1200. float CarlaEngine::getInputPeak(const uint pluginId, const bool isLeft) const noexcept

  1201. {

  1202.     if (pluginId == MAIN_CARLA_PLUGIN_ID)

  1203.     {

  1204.         // get peak from first plugin, if available

  1205.         if (pData->curPluginCount > 0)

  1206.             return pData->plugins[0].insPeak[isLeft ? 0 : 1];

  1207.         return 0.0f;

  1208.     }

  1209. 

  1210.     CARLA_SAFE_ASSERT_RETURN(pluginId < pData->curPluginCount, 0.0f);

  1211. 

  1212.     return pData->plugins[pluginId].insPeak[isLeft ? 0 : 1];

  1213. }

  1214. 

  1215. float CarlaEngine::getOutputPeak(const uint pluginId, const bool isLeft) const noexcept

  1216. {

  1217.     if (pluginId == MAIN_CARLA_PLUGIN_ID)

  1218.     {

  1219.         // get peak from last plugin, if available

  1220.         if (pData->curPluginCount > 0)

  1221.             return pData->plugins[pData->curPluginCount-1].outsPeak[isLeft ? 0 : 1];

  1222.         return 0.0f;

  1223.     }

  1224. 

  1225.     CARLA_SAFE_ASSERT_RETURN(pluginId < pData->curPluginCount, 0.0f);

  1226. 

  1227.     return pData->plugins[pluginId].outsPeak[isLeft ? 0 : 1];

  1228. }

  1229. 

  1230. // -----------------------------------------------------------------------

  1231. // Callback

  1232. 

  1233. void CarlaEngine::callback(const EngineCallbackOpcode action, const uint pluginId, const int value1, const int value2, const float value3, const char* const valueStr) noexcept

  1234. {

  1235. #ifdef DEBUG

  1236.     if (action != ENGINE_CALLBACK_IDLE)

  1237.         carla_debug("CarlaEngine::callback(%i:%s, %i, %i, %i, %f, \"%s\")", action, EngineCallbackOpcode2Str(action), pluginId, value1, value2, value3, valueStr);

  1238. #endif

  1239. 

  1240. #ifdef BUILD_BRIDGE

  1241.     if (pData->isIdling)

  1242. #else

  1243.     if (pData->isIdling && action != ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED)

  1244. #endif

  1245.     {

  1246.         carla_stdout("callback while idling (%i:%s, %i, %i, %i, %f, \"%s\")", action, EngineCallbackOpcode2Str(action), pluginId, value1, value2, value3, valueStr);

  1247.     }

  1248. 

  1249.     if (pData->callback != nullptr)

  1250.     {

  1251.         if (action == ENGINE_CALLBACK_IDLE)

  1252.             ++pData->isIdling;

  1253. 

  1254.         try {

  1255.             pData->callback(pData->callbackPtr, action, pluginId, value1, value2, value3, valueStr);

  1256. #if defined(CARLA_OS_LINUX) && defined(__arm__)

  1257.         } catch (__cxxabiv1::__forced_unwind&) {

  1258.             carla_stderr2("Caught forced unwind exception in callback");

  1259.             throw;

  1260. #endif

  1261.         } catch (...) {

  1262.             carla_safe_exception("callback", __FILE__, __LINE__);

  1263.         }

  1264. 

  1265.         if (action == ENGINE_CALLBACK_IDLE)

  1266.             --pData->isIdling;

  1267.     }

  1268. }

  1269. 

  1270. void CarlaEngine::setCallback(const EngineCallbackFunc func, void* const ptr) noexcept

  1271. {

  1272.     carla_debug("CarlaEngine::setCallback(%p, %p)", func, ptr);

  1273. 

  1274.     pData->callback    = func;

  1275.     pData->callbackPtr = ptr;

  1276. }

  1277. 

  1278. // -----------------------------------------------------------------------

  1279. // File Callback

  1280. 

  1281. const char* CarlaEngine::runFileCallback(const FileCallbackOpcode action, const bool isDir, const char* const title, const char* const filter) noexcept

  1282. {

  1283.     CARLA_SAFE_ASSERT_RETURN(title != nullptr && title[0] != '\0', nullptr);

  1284.     CARLA_SAFE_ASSERT_RETURN(filter != nullptr, nullptr);

  1285.     carla_debug("CarlaEngine::runFileCallback(%i:%s, %s, \"%s\", \"%s\")", action, FileCallbackOpcode2Str(action), bool2str(isDir), title, filter);

  1286. 

  1287.     const char* ret = nullptr;

  1288. 

  1289.     if (pData->fileCallback != nullptr)

  1290.     {

  1291.         try {

  1292.             ret = pData->fileCallback(pData->fileCallbackPtr, action, isDir, title, filter);

  1293.         } CARLA_SAFE_EXCEPTION("runFileCallback");

  1294.     }

  1295. 

  1296.     return ret;

  1297. }

  1298. 

  1299. void CarlaEngine::setFileCallback(const FileCallbackFunc func, void* const ptr) noexcept

  1300. {

  1301.     carla_debug("CarlaEngine::setFileCallback(%p, %p)", func, ptr);

  1302. 

  1303.     pData->fileCallback    = func;

  1304.     pData->fileCallbackPtr = ptr;

  1305. }

  1306. 

  1307. // -----------------------------------------------------------------------

  1308. // Transport

  1309. 

  1310. void CarlaEngine::transportPlay() noexcept

  1311. {

  1312.     pData->timeInfo.playing = true;

  1313.     pData->time.setNeedsReset();

  1314. }

  1315. 

  1316. void CarlaEngine::transportPause() noexcept

  1317. {

  1318.     if (pData->timeInfo.playing)

  1319.         pData->time.pause();

  1320.     else

  1321.         pData->time.setNeedsReset();

  1322. }

  1323. 

  1324. void CarlaEngine::transportBPM(const double bpm) noexcept

  1325. {

  1326.     try {

  1327.         pData->time.setBPM(bpm);

  1328.     } CARLA_SAFE_EXCEPTION("CarlaEngine::transportBPM");

  1329. }

  1330. 

  1331. void CarlaEngine::transportRelocate(const uint64_t frame) noexcept

  1332. {

  1333.     pData->time.relocate(frame);

  1334. }

  1335. 

  1336. // -----------------------------------------------------------------------

  1337. // Error handling

  1338. 

  1339. const char* CarlaEngine::getLastError() const noexcept

  1340. {

  1341.     return pData->lastError;

  1342. }

  1343. 

  1344. void CarlaEngine::setLastError(const char* const error) const noexcept

  1345. {

  1346.     pData->lastError = error;

  1347. }

  1348. 

  1349. // -----------------------------------------------------------------------

  1350. // Misc

  1351. 

  1352. bool CarlaEngine::isAboutToClose() const noexcept

  1353. {

  1354.     return pData->aboutToClose;

  1355. }

  1356. 

  1357. bool CarlaEngine::setAboutToClose() noexcept

  1358. {

  1359.     carla_debug("CarlaEngine::setAboutToClose()");

  1360. 

  1361.     pData->aboutToClose = true;

  1362. 

  1363.     return (pData->isIdling == 0);

  1364. }

  1365. 

  1366. // -----------------------------------------------------------------------

  1367. // Global options

  1368. 

  1369. void CarlaEngine::setOption(const EngineOption option, const int value, const char* const valueStr) noexcept

  1370. {

  1371.     carla_debug("CarlaEngine::setOption(%i:%s, %i, \"%s\")", option, EngineOption2Str(option), value, valueStr);

  1372. 

  1373.     if (isRunning())

  1374.     {

  1375.         switch (option)

  1376.         {

  1377.         case ENGINE_OPTION_PROCESS_MODE:

  1378.         case ENGINE_OPTION_AUDIO_TRIPLE_BUFFER:

  1379.         case ENGINE_OPTION_AUDIO_DEVICE:

  1380.             return carla_stderr("CarlaEngine::setOption(%i:%s, %i, \"%s\") - Cannot set this option while engine is running!",

  1381.                                 option, EngineOption2Str(option), value, valueStr);

  1382.         default:

  1383.             break;

  1384.         }

  1385.     }

  1386. 

  1387.     // do not un-force stereo for rack mode

  1388.     if (pData->options.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && option == ENGINE_OPTION_FORCE_STEREO && value != 0)

  1389.         return;

  1390. 

  1391.     switch (option)

  1392.     {

  1393.     case ENGINE_OPTION_DEBUG:

  1394.         break;

  1395. 

  1396.     case ENGINE_OPTION_PROCESS_MODE:

  1397.         CARLA_SAFE_ASSERT_RETURN(value >= ENGINE_PROCESS_MODE_SINGLE_CLIENT && value <= ENGINE_PROCESS_MODE_BRIDGE,);

  1398.         pData->options.processMode = static_cast<EngineProcessMode>(value);

  1399.         break;

  1400. 

  1401.     case ENGINE_OPTION_TRANSPORT_MODE:

  1402.         CARLA_SAFE_ASSERT_RETURN(value >= ENGINE_TRANSPORT_MODE_DISABLED && value <= ENGINE_TRANSPORT_MODE_BRIDGE,);

  1403.         CARLA_SAFE_ASSERT_RETURN(getType() == kEngineTypeJack || value != ENGINE_TRANSPORT_MODE_JACK,);

  1404.         pData->options.transportMode = static_cast<EngineTransportMode>(value);

  1405.         delete[] pData->options.transportExtra;

  1406.         if (value >= ENGINE_TRANSPORT_MODE_DISABLED && valueStr != nullptr)

  1407.             pData->options.transportExtra = carla_strdup_safe(valueStr);

  1408.         else

  1409.             pData->options.transportExtra = nullptr;

  1410. 

  1411.         pData->time.setNeedsReset();

  1412. 

  1413. #if defined(HAVE_HYLIA) && !defined(BUILD_BRIDGE)

  1414.         // enable link now if needed

  1415.         {

  1416.             const bool linkEnabled = pData->options.transportExtra != nullptr && std::strstr(pData->options.transportExtra, ":link:") != nullptr;

  1417.             pData->time.enableLink(linkEnabled);

  1418.         }

  1419. #endif

  1420.         break;

  1421. 

  1422.     case ENGINE_OPTION_FORCE_STEREO:

  1423.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1424.         pData->options.forceStereo = (value != 0);

  1425.         break;

  1426. 

  1427.     case ENGINE_OPTION_PREFER_PLUGIN_BRIDGES:

  1428. #ifdef BUILD_BRIDGE

  1429.         CARLA_SAFE_ASSERT_RETURN(value == 0,);

  1430. #else

  1431.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1432. #endif

  1433.         pData->options.preferPluginBridges = (value != 0);

  1434.         break;

  1435. 

  1436.     case ENGINE_OPTION_PREFER_UI_BRIDGES:

  1437.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1438.         pData->options.preferUiBridges = (value != 0);

  1439.         break;

  1440. 

  1441.     case ENGINE_OPTION_UIS_ALWAYS_ON_TOP:

  1442.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1443.         pData->options.uisAlwaysOnTop = (value != 0);

  1444.         break;

  1445. 

  1446.     case ENGINE_OPTION_MAX_PARAMETERS:

  1447.         CARLA_SAFE_ASSERT_RETURN(value >= 0,);

  1448.         pData->options.maxParameters = static_cast<uint>(value);

  1449.         break;

  1450. 

  1451.     case ENGINE_OPTION_UI_BRIDGES_TIMEOUT:

  1452.         CARLA_SAFE_ASSERT_RETURN(value >= 0,);

  1453.         pData->options.uiBridgesTimeout = static_cast<uint>(value);

  1454.         break;

  1455. 

  1456.     case ENGINE_OPTION_AUDIO_BUFFER_SIZE:

  1457.         CARLA_SAFE_ASSERT_RETURN(value >= 8,);

  1458.         pData->options.audioBufferSize = static_cast<uint>(value);

  1459.         break;

  1460. 

  1461.     case ENGINE_OPTION_AUDIO_SAMPLE_RATE:

  1462.         CARLA_SAFE_ASSERT_RETURN(value >= 22050,);

  1463.         pData->options.audioSampleRate = static_cast<uint>(value);

  1464.         break;

  1465. 

  1466.     case ENGINE_OPTION_AUDIO_TRIPLE_BUFFER:

  1467.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1468.         pData->options.audioTripleBuffer = (value != 0);

  1469.         break;

  1470. 

  1471.     case ENGINE_OPTION_AUDIO_DEVICE:

  1472.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr,);

  1473. 

  1474.         if (pData->options.audioDevice != nullptr)

  1475.             delete[] pData->options.audioDevice;

  1476. 

  1477.         pData->options.audioDevice = carla_strdup_safe(valueStr);

  1478.         break;

  1479. 

  1480.     case ENGINE_OPTION_PLUGIN_PATH:

  1481.         CARLA_SAFE_ASSERT_RETURN(value > PLUGIN_NONE,);

  1482.         CARLA_SAFE_ASSERT_RETURN(value <= PLUGIN_SFZ,);

  1483. 

  1484.         switch (value)

  1485.         {

  1486.         case PLUGIN_LADSPA:

  1487.             if (pData->options.pathLADSPA != nullptr)

  1488.                 delete[] pData->options.pathLADSPA;

  1489.             if (valueStr != nullptr)

  1490.                 pData->options.pathLADSPA = carla_strdup_safe(valueStr);

  1491.             else

  1492.                 pData->options.pathLADSPA = nullptr;

  1493.             break;

  1494.         case PLUGIN_DSSI:

  1495.             if (pData->options.pathDSSI != nullptr)

  1496.                 delete[] pData->options.pathDSSI;

  1497.             if (valueStr != nullptr)

  1498.                 pData->options.pathDSSI = carla_strdup_safe(valueStr);

  1499.             else

  1500.                 pData->options.pathDSSI = nullptr;

  1501.             break;

  1502.         case PLUGIN_LV2:

  1503.             if (pData->options.pathLV2 != nullptr)

  1504.                 delete[] pData->options.pathLV2;

  1505.             if (valueStr != nullptr)

  1506.                 pData->options.pathLV2 = carla_strdup_safe(valueStr);

  1507.             else

  1508.                 pData->options.pathLV2 = nullptr;

  1509.             break;

  1510.         case PLUGIN_VST2:

  1511.             if (pData->options.pathVST2 != nullptr)

  1512.                 delete[] pData->options.pathVST2;

  1513.             if (valueStr != nullptr)

  1514.                 pData->options.pathVST2 = carla_strdup_safe(valueStr);

  1515.             else

  1516.                 pData->options.pathVST2 = nullptr;

  1517.             break;

  1518.         case PLUGIN_GIG:

  1519.             if (pData->options.pathGIG != nullptr)

  1520.                 delete[] pData->options.pathGIG;

  1521.             if (valueStr != nullptr)

  1522.                 pData->options.pathGIG = carla_strdup_safe(valueStr);

  1523.             else

  1524.                 pData->options.pathGIG = nullptr;

  1525.             break;

  1526.         case PLUGIN_SF2:

  1527.             if (pData->options.pathSF2 != nullptr)

  1528.                 delete[] pData->options.pathSF2;

  1529.             if (valueStr != nullptr)

  1530.                 pData->options.pathSF2 = carla_strdup_safe(valueStr);

  1531.             else

  1532.                 pData->options.pathSF2 = nullptr;

  1533.             break;

  1534.         case PLUGIN_SFZ:

  1535.             if (pData->options.pathSFZ != nullptr)

  1536.                 delete[] pData->options.pathSFZ;

  1537.             if (valueStr != nullptr)

  1538.                 pData->options.pathSFZ = carla_strdup_safe(valueStr);

  1539.             else

  1540.                 pData->options.pathSFZ = nullptr;

  1541.             break;

  1542.         default:

  1543.             return carla_stderr("CarlaEngine::setOption(%i:%s, %i, \"%s\") - Invalid plugin type", option, EngineOption2Str(option), value, valueStr);

  1544.             break;

  1545.         }

  1546.         break;

  1547. 

  1548.     case ENGINE_OPTION_PATH_BINARIES:

  1549.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1550. 

  1551.         if (pData->options.binaryDir != nullptr)

  1552.             delete[] pData->options.binaryDir;

  1553. 

  1554.         pData->options.binaryDir = carla_strdup_safe(valueStr);

  1555.         break;

  1556. 

  1557.     case ENGINE_OPTION_PATH_RESOURCES:

  1558.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1559. 

  1560.         if (pData->options.resourceDir != nullptr)

  1561.             delete[] pData->options.resourceDir;

  1562. 

  1563.         pData->options.resourceDir = carla_strdup_safe(valueStr);

  1564.         break;

  1565. 

  1566.     case ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR: {

  1567.         CARLA_SAFE_ASSERT_RETURN(pData->options.binaryDir != nullptr && pData->options.binaryDir[0] != '\0',);

  1568. 

  1569. #ifdef CARLA_OS_LINUX

  1570.         const ScopedEngineEnvironmentLocker _seel(this);

  1571. 

  1572.         if (value != 0)

  1573.         {

  1574.             CarlaString interposerPath(CarlaString(pData->options.binaryDir) + "/libcarla_interposer-safe.so");

  1575.             ::setenv("LD_PRELOAD", interposerPath.buffer(), 1);

  1576.         }

  1577.         else

  1578.         {

  1579.             ::unsetenv("LD_PRELOAD");

  1580.         }

  1581. #endif

  1582.     }   break;

  1583. 

  1584.     case ENGINE_OPTION_FRONTEND_WIN_ID: {

  1585.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1586.         const long long winId(std::strtoll(valueStr, nullptr, 16));

  1587.         CARLA_SAFE_ASSERT_RETURN(winId >= 0,);

  1588.         pData->options.frontendWinId = static_cast<uintptr_t>(winId);

  1589.     }   break;

  1590. 

  1591. #ifndef CARLA_OS_WIN

  1592.     case ENGINE_OPTION_WINE_EXECUTABLE:

  1593.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1594. 

  1595.         if (pData->options.wine.executable != nullptr)

  1596.             delete[] pData->options.wine.executable;

  1597. 

  1598.         pData->options.wine.executable = carla_strdup_safe(valueStr);

  1599.         break;

  1600. 

  1601.     case ENGINE_OPTION_WINE_AUTO_PREFIX:

  1602.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1603.         pData->options.wine.autoPrefix = (value != 0);

  1604.         break;

  1605. 

  1606.     case ENGINE_OPTION_WINE_FALLBACK_PREFIX:

  1607.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1608. 

  1609.         if (pData->options.wine.fallbackPrefix != nullptr)

  1610.             delete[] pData->options.wine.fallbackPrefix;

  1611. 

  1612.         pData->options.wine.fallbackPrefix = carla_strdup_safe(valueStr);

  1613.         break;

  1614. 

  1615.     case ENGINE_OPTION_WINE_RT_PRIO_ENABLED:

  1616.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1617.         pData->options.wine.rtPrio = (value != 0);

  1618.         break;

  1619. 

  1620.     case ENGINE_OPTION_WINE_BASE_RT_PRIO:

  1621.         CARLA_SAFE_ASSERT_RETURN(value >= 1 && value <= 89,);

  1622.         pData->options.wine.baseRtPrio = value;

  1623.         break;

  1624. 

  1625.     case ENGINE_OPTION_WINE_SERVER_RT_PRIO:

  1626.         CARLA_SAFE_ASSERT_RETURN(value >= 1 && value <= 99,);

  1627.         pData->options.wine.serverRtPrio = value;

  1628.         break;

  1629. #endif

  1630. 

  1631.     case ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT:

  1632.         break;

  1633.     }

  1634. }

  1635. 

  1636. #ifdef HAVE_LIBLO

  1637. // -----------------------------------------------------------------------

  1638. // OSC Stuff

  1639. 

  1640. # ifndef BUILD_BRIDGE

  1641. bool CarlaEngine::isOscControlRegistered() const noexcept

  1642. {

  1643.     return pData->osc.isControlRegistered();

  1644. }

  1645. # endif

  1646. 

  1647. void CarlaEngine::idleOsc() const noexcept

  1648. {

  1649.     pData->osc.idle();

  1650. }

  1651. 

  1652. const char* CarlaEngine::getOscServerPathTCP() const noexcept

  1653. {

  1654.     return pData->osc.getServerPathTCP();

  1655. }

  1656. 

  1657. const char* CarlaEngine::getOscServerPathUDP() const noexcept

  1658. {

  1659.     return pData->osc.getServerPathUDP();

  1660. }

  1661. #endif

  1662. 

  1663. // -----------------------------------------------------------------------

  1664. // Helper functions

  1665. 

  1666. EngineEvent* CarlaEngine::getInternalEventBuffer(const bool isInput) const noexcept

  1667. {

  1668.     return isInput ? pData->events.in : pData->events.out;

  1669. }

  1670. 

  1671. // -----------------------------------------------------------------------

  1672. // Internal stuff

  1673. 

  1674. void CarlaEngine::bufferSizeChanged(const uint32_t newBufferSize)

  1675. {

  1676.     carla_debug("CarlaEngine::bufferSizeChanged(%i)", newBufferSize);

  1677. 

  1678. #ifndef BUILD_BRIDGE

  1679.     if (pData->options.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK ||

  1680.         pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  1681.     {

  1682.         pData->graph.setBufferSize(newBufferSize);

  1683.     }

  1684. #endif

  1685. 

  1686.     pData->time.updateAudioValues(newBufferSize, pData->sampleRate);

  1687. 

  1688.     for (uint i=0; i < pData->curPluginCount; ++i)

  1689.     {

  1690.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1691. 

  1692.         if (plugin != nullptr && plugin->isEnabled())

  1693.             plugin->bufferSizeChanged(newBufferSize);

  1694.     }

  1695. 

  1696.     callback(ENGINE_CALLBACK_BUFFER_SIZE_CHANGED, 0, static_cast<int>(newBufferSize), 0, 0.0f, nullptr);

  1697. }

  1698. 

  1699. void CarlaEngine::sampleRateChanged(const double newSampleRate)

  1700. {

  1701.     carla_debug("CarlaEngine::sampleRateChanged(%g)", newSampleRate);

  1702. 

  1703. #ifndef BUILD_BRIDGE

  1704.     if (pData->options.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK ||

  1705.         pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  1706.     {

  1707.         pData->graph.setSampleRate(newSampleRate);

  1708.     }

  1709. #endif

  1710. 

  1711.     pData->time.updateAudioValues(pData->bufferSize, newSampleRate);

  1712. 

  1713.     for (uint i=0; i < pData->curPluginCount; ++i)

  1714.     {

  1715.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1716. 

  1717.         if (plugin != nullptr && plugin->isEnabled())

  1718.             plugin->sampleRateChanged(newSampleRate);

  1719.     }

  1720. 

  1721.     callback(ENGINE_CALLBACK_SAMPLE_RATE_CHANGED, 0, 0, 0, static_cast<float>(newSampleRate), nullptr);

  1722. }

  1723. 

  1724. void CarlaEngine::offlineModeChanged(const bool isOfflineNow)

  1725. {

  1726.     carla_debug("CarlaEngine::offlineModeChanged(%s)", bool2str(isOfflineNow));

  1727. 

  1728. #ifndef BUILD_BRIDGE

  1729.     if (pData->options.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK ||

  1730.         pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  1731.     {

  1732.         pData->graph.setOffline(isOfflineNow);

  1733.     }

  1734. #endif

  1735. 

  1736.     for (uint i=0; i < pData->curPluginCount; ++i)

  1737.     {

  1738.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1739. 

  1740.         if (plugin != nullptr && plugin->isEnabled())

  1741.             plugin->offlineModeChanged(isOfflineNow);

  1742.     }

  1743. }

  1744. 

  1745. void CarlaEngine::setPluginPeaks(const uint pluginId, float const inPeaks[2], float const outPeaks[2]) noexcept

  1746. {

  1747.     EnginePluginData& pluginData(pData->plugins[pluginId]);

  1748. 

  1749.     pluginData.insPeak[0]  = inPeaks[0];

  1750.     pluginData.insPeak[1]  = inPeaks[1];

  1751.     pluginData.outsPeak[0] = outPeaks[0];

  1752.     pluginData.outsPeak[1] = outPeaks[1];

  1753. }

  1754. 

  1755. void CarlaEngine::saveProjectInternal(water::MemoryOutputStream& outStream) const

  1756. {

  1757.     // send initial prepareForSave first, giving time for bridges to act

  1758.     for (uint i=0; i < pData->curPluginCount; ++i)

  1759.     {

  1760.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1761. 

  1762.         if (plugin != nullptr && plugin->isEnabled())

  1763.         {

  1764. #ifndef BUILD_BRIDGE

  1765.             // deactivate bridge client-side ping check, since some plugins block during save

  1766.             if (plugin->getHints() & PLUGIN_IS_BRIDGE)

  1767.                 plugin->setCustomData(CUSTOM_DATA_TYPE_STRING, "__CarlaPingOnOff__", "false", false);

  1768. #endif

  1769.             plugin->prepareForSave();

  1770.         }

  1771.     }

  1772. 

  1773.     outStream << "<?xml version='1.0' encoding='UTF-8'?>\n";

  1774.     outStream << "<!DOCTYPE CARLA-PROJECT>\n";

  1775.     outStream << "<CARLA-PROJECT VERSION='2.0'>\n";

  1776. 

  1777.     const bool isPlugin(getType() == kEngineTypePlugin);

  1778.     const EngineOptions& options(pData->options);

  1779. 

  1780.     MemoryOutputStream outSettings(1024);

  1781. 

  1782.     // save appropriate engine settings

  1783.     outSettings << " <EngineSettings>\n";

  1784. 

  1785.     //processMode

  1786.     //transportMode

  1787. 

  1788.     outSettings << "  <ForceStereo>"         << bool2str(options.forceStereo)         << "</ForceStereo>\n";

  1789.     outSettings << "  <PreferPluginBridges>" << bool2str(options.preferPluginBridges) << "</PreferPluginBridges>\n";

  1790.     outSettings << "  <PreferUiBridges>"     << bool2str(options.preferUiBridges)     << "</PreferUiBridges>\n";

  1791.     outSettings << "  <UIsAlwaysOnTop>"      << bool2str(options.uisAlwaysOnTop)      << "</UIsAlwaysOnTop>\n";

  1792. 

  1793.     outSettings << "  <MaxParameters>"       << String(options.maxParameters)    << "</MaxParameters>\n";

  1794.     outSettings << "  <UIBridgesTimeout>"    << String(options.uiBridgesTimeout) << "</UIBridgesTimeout>\n";

  1795. 

  1796.     if (isPlugin)

  1797.     {

  1798.         outSettings << "  <LADSPA_PATH>" << xmlSafeString(options.pathLADSPA, true) << "</LADSPA_PATH>\n";

  1799.         outSettings << "  <DSSI_PATH>"   << xmlSafeString(options.pathDSSI,   true) << "</DSSI_PATH>\n";

  1800.         outSettings << "  <LV2_PATH>"    << xmlSafeString(options.pathLV2,    true) << "</LV2_PATH>\n";

  1801.         outSettings << "  <VST2_PATH>"   << xmlSafeString(options.pathVST2,   true) << "</VST2_PATH>\n";

  1802.         outSettings << "  <GIG_PATH>"    << xmlSafeString(options.pathGIG,    true) << "</GIG_PATH>\n";

  1803.         outSettings << "  <SF2_PATH>"    << xmlSafeString(options.pathSF2,    true) << "</SF2_PATH>\n";

  1804.         outSettings << "  <SFZ_PATH>"    << xmlSafeString(options.pathSFZ,    true) << "</SFZ_PATH>\n";

  1805.     }

  1806. 

  1807.     outSettings << " </EngineSettings>\n";

  1808.     outStream << outSettings;

  1809. 

  1810.     char strBuf[STR_MAX+1];

  1811. 

  1812.     for (uint i=0; i < pData->curPluginCount; ++i)

  1813.     {

  1814.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1815. 

  1816.         if (plugin != nullptr && plugin->isEnabled())

  1817.         {

  1818.             MemoryOutputStream outPlugin(4096), streamPlugin;

  1819.             plugin->getStateSave(false).dumpToMemoryStream(streamPlugin);

  1820. 

  1821.             outPlugin << "\n";

  1822. 

  1823.             strBuf[0] = '\0';

  1824.             plugin->getRealName(strBuf);

  1825. 

  1826.             if (strBuf[0] != '\0')

  1827.                 outPlugin << " <!-- " << xmlSafeString(strBuf, true) << " -->\n";

  1828. 

  1829.             outPlugin << " <Plugin>\n";

  1830.             outPlugin << streamPlugin;

  1831.             outPlugin << " </Plugin>\n";

  1832.             outStream << outPlugin;

  1833.         }

  1834.     }

  1835. 

  1836. #ifndef BUILD_BRIDGE

  1837.     // tell bridges we're done saving

  1838.     for (uint i=0; i < pData->curPluginCount; ++i)

  1839.     {

  1840.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1841. 

  1842.         if (plugin != nullptr && plugin->isEnabled() && (plugin->getHints() & PLUGIN_IS_BRIDGE) != 0)

  1843.             plugin->setCustomData(CUSTOM_DATA_TYPE_STRING, "__CarlaPingOnOff__", "true", false);

  1844.     }

  1845. 

  1846.     // save internal connections

  1847.     if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  1848.     {

  1849.         if (const char* const* const patchbayConns = getPatchbayConnections(false))

  1850.         {

  1851.             MemoryOutputStream outPatchbay(2048);

  1852. 

  1853.             outPatchbay << "\n <Patchbay>\n";

  1854. 

  1855.             for (int i=0; patchbayConns[i] != nullptr && patchbayConns[i+1] != nullptr; ++i, ++i )

  1856.             {

  1857.                 const char* const connSource(patchbayConns[i]);

  1858.                 const char* const connTarget(patchbayConns[i+1]);

  1859. 

  1860.                 CARLA_SAFE_ASSERT_CONTINUE(connSource != nullptr && connSource[0] != '\0');

  1861.                 CARLA_SAFE_ASSERT_CONTINUE(connTarget != nullptr && connTarget[0] != '\0');

  1862. 

  1863.                 outPatchbay << "  <Connection>\n";

  1864.                 outPatchbay << "   <Source>" << xmlSafeString(connSource, true) << "</Source>\n";

  1865.                 outPatchbay << "   <Target>" << xmlSafeString(connTarget, true) << "</Target>\n";

  1866.                 outPatchbay << "  </Connection>\n";

  1867.             }

  1868. 

  1869.             outPatchbay << " </Patchbay>\n";

  1870.             outStream << outPatchbay;

  1871.         }

  1872.     }

  1873. 

  1874.     // if we're running inside some session-manager (and using JACK), let them handle the connections

  1875.     bool saveExternalConnections;

  1876. 

  1877.     /**/ if (isPlugin)

  1878.         saveExternalConnections = false;

  1879.     else if (std::strcmp(getCurrentDriverName(), "JACK") != 0)

  1880.         saveExternalConnections = true;

  1881.     else if (std::getenv("CARLA_DONT_MANAGE_CONNECTIONS") != nullptr)

  1882.         saveExternalConnections = false;

  1883.     else if (std::getenv("LADISH_APP_NAME") != nullptr)

  1884.         saveExternalConnections = false;

  1885.     else if (std::getenv("NSM_URL") != nullptr)

  1886.         saveExternalConnections = false;

  1887.     else

  1888.         saveExternalConnections = true;

  1889. 

  1890.     if (saveExternalConnections)

  1891.     {

  1892.         if (const char* const* const patchbayConns = getPatchbayConnections(true))

  1893.         {

  1894.             MemoryOutputStream outPatchbay(2048);

  1895. 

  1896.             outPatchbay << "\n <ExternalPatchbay>\n";

  1897. 

  1898.             for (int i=0; patchbayConns[i] != nullptr && patchbayConns[i+1] != nullptr; ++i, ++i )

  1899.             {

  1900.                 const char* const connSource(patchbayConns[i]);

  1901.                 const char* const connTarget(patchbayConns[i+1]);

  1902. 

  1903.                 CARLA_SAFE_ASSERT_CONTINUE(connSource != nullptr && connSource[0] != '\0');

  1904.                 CARLA_SAFE_ASSERT_CONTINUE(connTarget != nullptr && connTarget[0] != '\0');

  1905. 

  1906.                 outPatchbay << "  <Connection>\n";

  1907.                 outPatchbay << "   <Source>" << xmlSafeString(connSource, true) << "</Source>\n";

  1908.                 outPatchbay << "   <Target>" << xmlSafeString(connTarget, true) << "</Target>\n";

  1909.                 outPatchbay << "  </Connection>\n";

  1910.             }

  1911. 

  1912.             outPatchbay << " </ExternalPatchbay>\n";

  1913.             outStream << outPatchbay;

  1914.         }

  1915.     }

  1916. #endif

  1917. 

  1918.     outStream << "</CARLA-PROJECT>\n";

  1919. }

  1920. 

  1921. static String findBinaryInCustomPath(const char* const searchPath, const char* const binary)

  1922. {

  1923.     const StringArray searchPaths(StringArray::fromTokens(searchPath, CARLA_OS_SPLIT_STR, ""));

  1924. 

  1925.     // try direct filename first

  1926.     String jbinary(binary);

  1927. 

  1928.     // adjust for current platform

  1929. #ifdef CARLA_OS_WIN

  1930.     if (jbinary[0] == '/')

  1931.         jbinary = "C:" + jbinary.replaceCharacter('/', '\\');

  1932. #else

  1933.     if (jbinary[1] == ':' && (jbinary[2] == '\\' || jbinary[2] == '/'))

  1934.         jbinary = jbinary.substring(2).replaceCharacter('\\', '/');

  1935. #endif

  1936. 

  1937.     String filename = File(jbinary).getFileName();

  1938. 

  1939.     int searchFlags = File::findFiles|File::ignoreHiddenFiles;

  1940. #ifdef CARLA_OS_MAC

  1941.     if (filename.endsWithIgnoreCase(".vst"))

  1942.         searchFlags |= File::findDirectories;

  1943. #endif

  1944. 

  1945.     Array<File> results;

  1946.     for (const String *it=searchPaths.begin(), *end=searchPaths.end(); it != end; ++it)

  1947.     {

  1948.         const File path(*it);

  1949. 

  1950.         results.clear();

  1951.         path.findChildFiles(results, searchFlags, true, filename);

  1952. 

  1953.         if (results.size() > 0)

  1954.             return results.getFirst().getFullPathName();

  1955.     }

  1956. 

  1957.     // try changing extension

  1958. #if defined(CARLA_OS_MAC)

  1959.     if (filename.endsWithIgnoreCase(".dll") || filename.endsWithIgnoreCase(".so"))

  1960.         filename = File(jbinary).getFileNameWithoutExtension() + ".dylib";

  1961. #elif defined(CARLA_OS_WIN)

  1962.     if (filename.endsWithIgnoreCase(".dylib") || filename.endsWithIgnoreCase(".so"))

  1963.         filename = File(jbinary).getFileNameWithoutExtension() + ".dll";

  1964. #else

  1965.     if (filename.endsWithIgnoreCase(".dll") || filename.endsWithIgnoreCase(".dylib"))

  1966.         filename = File(jbinary).getFileNameWithoutExtension() + ".so";

  1967. #endif

  1968.     else

  1969.         return String();

  1970. 

  1971.     for (const String *it=searchPaths.begin(), *end=searchPaths.end(); it != end; ++it)

  1972.     {

  1973.         const File path(*it);

  1974. 

  1975.         results.clear();

  1976.         path.findChildFiles(results, searchFlags, true, filename);

  1977. 

  1978.         if (results.size() > 0)

  1979.             return results.getFirst().getFullPathName();

  1980.     }

  1981. 

  1982.     return String();

  1983. }

  1984. 

  1985. bool CarlaEngine::loadProjectInternal(water::XmlDocument& xmlDoc)

  1986. {

  1987.     ScopedPointer<XmlElement> xmlElement(xmlDoc.getDocumentElement(true));

  1988.     CARLA_SAFE_ASSERT_RETURN_ERR(xmlElement != nullptr, "Failed to parse project file");

  1989. 

  1990.     const String& xmlType(xmlElement->getTagName());

  1991.     const bool isPreset(xmlType.equalsIgnoreCase("carla-preset"));

  1992. 

  1993.     if (! (xmlType.equalsIgnoreCase("carla-project") || isPreset))

  1994.     {

  1995.         callback(ENGINE_CALLBACK_PROJECT_LOAD_FINISHED, 0, 0, 0, 0.0f, nullptr);

  1996.         setLastError("Not a valid Carla project or preset file");

  1997.         return false;

  1998.     }

  1999. 

  2000. #ifndef BUILD_BRIDGE

  2001.     const ScopedValueSetter<bool> _svs(pData->loadingProject, true, false);

  2002. #endif

  2003. 

  2004.     // completely load file

  2005.     xmlElement = xmlDoc.getDocumentElement(false);

  2006.     CARLA_SAFE_ASSERT_RETURN_ERR(xmlElement != nullptr, "Failed to completely parse project file");

  2007. 

  2008.     if (pData->aboutToClose)

  2009.         return true;

  2010. 

  2011.     const bool isPlugin(getType() == kEngineTypePlugin);

  2012. 

  2013.     // engine settings

  2014.     for (XmlElement* elem = xmlElement->getFirstChildElement(); elem != nullptr; elem = elem->getNextElement())

  2015.     {

  2016.         const String& tagName(elem->getTagName());

  2017. 

  2018.         if (! tagName.equalsIgnoreCase("enginesettings"))

  2019.             continue;

  2020. 

  2021.         for (XmlElement* settElem = elem->getFirstChildElement(); settElem != nullptr; settElem = settElem->getNextElement())

  2022.         {

  2023.             const String& tag(settElem->getTagName());

  2024.             const String  text(settElem->getAllSubText().trim());

  2025. 

  2026.            /** some settings might be incorrect or require extra work,

  2027.                so we call setOption rather than modifying them direly */

  2028. 

  2029.            int option = -1;

  2030.            int value  = 0;

  2031.            const char* valueStr = nullptr;

  2032. 

  2033.             /**/ if (tag.equalsIgnoreCase("forcestereo"))

  2034.             {

  2035.                 option = ENGINE_OPTION_FORCE_STEREO;

  2036.                 value  = text.equalsIgnoreCase("true") ? 1 : 0;

  2037.             }

  2038.             else if (tag.equalsIgnoreCase("preferpluginbridges"))

  2039.             {

  2040.                 option = ENGINE_OPTION_PREFER_PLUGIN_BRIDGES;

  2041.                 value  = text.equalsIgnoreCase("true") ? 1 : 0;

  2042.             }

  2043.             else if (tag.equalsIgnoreCase("preferuibridges"))

  2044.             {

  2045.                 option = ENGINE_OPTION_PREFER_UI_BRIDGES;

  2046.                 value  = text.equalsIgnoreCase("true") ? 1 : 0;

  2047.             }

  2048.             else if (tag.equalsIgnoreCase("uisalwaysontop"))

  2049.             {

  2050.                 option = ENGINE_OPTION_UIS_ALWAYS_ON_TOP;

  2051.                 value  = text.equalsIgnoreCase("true") ? 1 : 0;

  2052.             }

  2053.             else if (tag.equalsIgnoreCase("maxparameters"))

  2054.             {

  2055.                 option = ENGINE_OPTION_MAX_PARAMETERS;

  2056.                 value  = text.getIntValue();

  2057.             }

  2058.             else if (tag.equalsIgnoreCase("uibridgestimeout"))

  2059.             {

  2060.                 option = ENGINE_OPTION_UI_BRIDGES_TIMEOUT;

  2061.                 value  = text.getIntValue();

  2062.             }

  2063.             else if (isPlugin)

  2064.             {

  2065.                 /**/ if (tag.equalsIgnoreCase("LADSPA_PATH"))

  2066.                 {

  2067.                     option   = ENGINE_OPTION_PLUGIN_PATH;

  2068.                     value    = PLUGIN_LADSPA;

  2069.                     valueStr = text.toRawUTF8();

  2070.                 }

  2071.                 else if (tag.equalsIgnoreCase("DSSI_PATH"))

  2072.                 {

  2073.                     option   = ENGINE_OPTION_PLUGIN_PATH;

  2074.                     value    = PLUGIN_DSSI;

  2075.                     valueStr = text.toRawUTF8();

  2076.                 }

  2077.                 else if (tag.equalsIgnoreCase("LV2_PATH"))

  2078.                 {

  2079.                     option   = ENGINE_OPTION_PLUGIN_PATH;

  2080.                     value    = PLUGIN_LV2;

  2081.                     valueStr = text.toRawUTF8();

  2082.                 }

  2083.                 else if (tag.equalsIgnoreCase("VST2_PATH"))

  2084.                 {

  2085.                     option   = ENGINE_OPTION_PLUGIN_PATH;

  2086.                     value    = PLUGIN_VST2;

  2087.                     valueStr = text.toRawUTF8();

  2088.                 }

  2089.                 else if (tag.equalsIgnoreCase("GIG_PATH"))

  2090.                 {

  2091.                     option   = ENGINE_OPTION_PLUGIN_PATH;

  2092.                     value    = PLUGIN_GIG;

  2093.                     valueStr = text.toRawUTF8();

  2094.                 }

  2095.                 else if (tag.equalsIgnoreCase("SF2_PATH"))

  2096.                 {

  2097.                     option   = ENGINE_OPTION_PLUGIN_PATH;

  2098.                     value    = PLUGIN_SF2;

  2099.                     valueStr = text.toRawUTF8();

  2100.                 }

  2101.                 else if (tag.equalsIgnoreCase("SFZ_PATH"))

  2102.                 {

  2103.                     option   = ENGINE_OPTION_PLUGIN_PATH;

  2104.                     value    = PLUGIN_SFZ;

  2105.                     valueStr = text.toRawUTF8();

  2106.                 }

  2107.             }

  2108. 

  2109.             CARLA_SAFE_ASSERT_CONTINUE(option != -1);

  2110. 

  2111.             setOption(static_cast<EngineOption>(option), value, valueStr);

  2112.         }

  2113. 

  2114.         break;

  2115.     }

  2116. 

  2117.     if (pData->aboutToClose)

  2118.         return true;

  2119. 

  2120.     // handle plugins first

  2121.     for (XmlElement* elem = xmlElement->getFirstChildElement(); elem != nullptr; elem = elem->getNextElement())

  2122.     {

  2123.         const String& tagName(elem->getTagName());

  2124. 

  2125.         if (isPreset || tagName.equalsIgnoreCase("plugin"))

  2126.         {

  2127.             CarlaStateSave stateSave;

  2128.             stateSave.fillFromXmlElement(isPreset ? xmlElement.get() : elem);

  2129. 

  2130.             callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2131. 

  2132.             if (pData->aboutToClose)

  2133.                 return true;

  2134. 

  2135.             CARLA_SAFE_ASSERT_CONTINUE(stateSave.type != nullptr);

  2136. 

  2137.             const void* extraStuff    = nullptr;

  2138.             static const char kTrue[] = "true";

  2139. 

  2140.             const PluginType ptype(getPluginTypeFromString(stateSave.type));

  2141. 

  2142.             switch (ptype)

  2143.             {

  2144.             case PLUGIN_GIG:

  2145.             case PLUGIN_SF2:

  2146.                 if (CarlaString(stateSave.label).endsWith(" (16 outs)"))

  2147.                     extraStuff = kTrue;

  2148.                 // fall through

  2149.             case PLUGIN_LADSPA:

  2150.             case PLUGIN_DSSI:

  2151.             case PLUGIN_VST2:

  2152.             case PLUGIN_SFZ:

  2153.                 if (stateSave.binary != nullptr && stateSave.binary[0] != '\0' &&

  2154.                     ! (File::isAbsolutePath(stateSave.binary) && File(stateSave.binary).exists()))

  2155.                 {

  2156.                     const char* searchPath;

  2157. 

  2158.                     switch (ptype)

  2159.                     {

  2160.                     case PLUGIN_LADSPA: searchPath = pData->options.pathLADSPA; break;

  2161.                     case PLUGIN_DSSI:   searchPath = pData->options.pathDSSI;   break;

  2162.                     case PLUGIN_VST2:   searchPath = pData->options.pathVST2;   break;

  2163.                     case PLUGIN_GIG:    searchPath = pData->options.pathGIG;    break;

  2164.                     case PLUGIN_SF2:    searchPath = pData->options.pathSF2;    break;

  2165.                     case PLUGIN_SFZ:    searchPath = pData->options.pathSFZ;    break;

  2166.                     default:            searchPath = nullptr;                   break;

  2167.                     }

  2168. 

  2169.                     if (searchPath != nullptr && searchPath[0] != '\0')

  2170.                     {

  2171.                         carla_stderr("Plugin binary '%s' doesn't exist on this filesystem, let's look for it...",

  2172.                                      stateSave.binary);

  2173. 

  2174.                         String result = findBinaryInCustomPath(searchPath, stateSave.binary);

  2175. 

  2176.                         if (result.isEmpty())

  2177.                         {

  2178.                             switch (ptype)

  2179.                             {

  2180.                             case PLUGIN_LADSPA: searchPath = std::getenv("LADSPA_PATH"); break;

  2181.                             case PLUGIN_DSSI:   searchPath = std::getenv("DSSI_PATH");   break;

  2182.                             case PLUGIN_VST2:   searchPath = std::getenv("VST_PATH");    break;

  2183.                             case PLUGIN_GIG:    searchPath = std::getenv("GIG_PATH");    break;

  2184.                             case PLUGIN_SF2:    searchPath = std::getenv("SF2_PATH");    break;

  2185.                             case PLUGIN_SFZ:    searchPath = std::getenv("SFZ_PATH");    break;

  2186.                             default:            searchPath = nullptr;                    break;

  2187.                             }

  2188. 

  2189.                             if (searchPath != nullptr && searchPath[0] != '\0')

  2190.                                 result = findBinaryInCustomPath(searchPath, stateSave.binary);

  2191.                         }

  2192. 

  2193.                         if (result.isNotEmpty())

  2194.                         {

  2195.                             delete[] stateSave.binary;

  2196.                             stateSave.binary = carla_strdup(result.toRawUTF8());

  2197.                             carla_stderr("Found it! :)");

  2198.                         }

  2199.                         else

  2200.                         {

  2201.                             carla_stderr("Damn, we failed... :(");

  2202.                         }

  2203.                     }

  2204.                 }

  2205.                 break;

  2206.             default:

  2207.                 break;

  2208.             }

  2209. 

  2210.             if (addPlugin(getBinaryTypeFromFile(stateSave.binary), ptype, stateSave.binary,

  2211.                           stateSave.name, stateSave.label, stateSave.uniqueId, extraStuff, stateSave.options))

  2212.             {

  2213. #ifndef BUILD_BRIDGE

  2214.                 const uint pluginId = pData->curPluginCount;

  2215. #else

  2216.                 const uint pluginId = 0;

  2217. #endif

  2218. 

  2219.                 if (CarlaPlugin* const plugin = pData->plugins[pluginId].plugin)

  2220.                 {

  2221.                     callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2222. 

  2223.                     if (pData->aboutToClose)

  2224.                         return true;

  2225. 

  2226.                     // deactivate bridge client-side ping check, since some plugins block during load

  2227.                     if ((plugin->getHints() & PLUGIN_IS_BRIDGE) != 0 && ! isPreset)

  2228.                         plugin->setCustomData(CUSTOM_DATA_TYPE_STRING, "__CarlaPingOnOff__", "false", false);

  2229. 

  2230.                     plugin->loadStateSave(stateSave);

  2231. 

  2232.                     /* NOTE: The following code is the same as the end of addPlugin().

  2233.                      *       When project is loading we do not enable the plugin right away,

  2234.                      *        as we want to load state first.

  2235.                      */

  2236. #ifdef BUILD_BRIDGE

  2237.                     plugin->setActive(true, true, false);

  2238. #else

  2239.                     ++pData->curPluginCount;

  2240. #endif

  2241. 

  2242.                     plugin->setEnabled(true);

  2243.                     callback(ENGINE_CALLBACK_PLUGIN_ADDED, pluginId, 0, 0, 0.0f, plugin->getName());

  2244. 

  2245. #ifndef BUILD_BRIDGE

  2246.                     if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  2247.                         pData->graph.addPlugin(plugin);

  2248. #endif

  2249.                 }

  2250.                 else

  2251.                 {

  2252.                     carla_stderr2("Failed to get new plugin, state will not be restored correctly\n");

  2253.                 }

  2254.             }

  2255.             else

  2256.             {

  2257.                 carla_stderr2("Failed to load a plugin, error was:\n%s", getLastError());

  2258.             }

  2259.         }

  2260. 

  2261.         if (isPreset)

  2262.             return true;

  2263.     }

  2264. 

  2265. #ifndef BUILD_BRIDGE

  2266.     // tell bridges we're done loading

  2267.     for (uint i=0; i < pData->curPluginCount; ++i)

  2268.     {

  2269.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  2270. 

  2271.         if (plugin != nullptr && plugin->isEnabled() && (plugin->getHints() & PLUGIN_IS_BRIDGE) != 0)

  2272.             plugin->setCustomData(CUSTOM_DATA_TYPE_STRING, "__CarlaPingOnOff__", "true", false);

  2273.     }

  2274. 

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

  2276. 

  2277.     if (pData->aboutToClose)

  2278.         return true;

  2279. 

  2280.     // handle connections (internal)

  2281.     if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  2282.     {

  2283.         const bool isUsingExternal(pData->graph.isUsingExternal());

  2284. 

  2285.         for (XmlElement* elem = xmlElement->getFirstChildElement(); elem != nullptr; elem = elem->getNextElement())

  2286.         {

  2287.             const String& tagName(elem->getTagName());

  2288. 

  2289.             // only load internal patchbay connections

  2290.             if (! tagName.equalsIgnoreCase("patchbay"))

  2291.                 continue;

  2292. 

  2293.             CarlaString sourcePort, targetPort;

  2294. 

  2295.             for (XmlElement* patchElem = elem->getFirstChildElement(); patchElem != nullptr; patchElem = patchElem->getNextElement())

  2296.             {

  2297.                 const String& patchTag(patchElem->getTagName());

  2298. 

  2299.                 sourcePort.clear();

  2300.                 targetPort.clear();

  2301. 

  2302.                 if (! patchTag.equalsIgnoreCase("connection"))

  2303.                     continue;

  2304. 

  2305.                 for (XmlElement* connElem = patchElem->getFirstChildElement(); connElem != nullptr; connElem = connElem->getNextElement())

  2306.                 {

  2307.                     const String& tag(connElem->getTagName());

  2308.                     const String  text(connElem->getAllSubText().trim());

  2309. 

  2310.                     /**/ if (tag.equalsIgnoreCase("source"))

  2311.                         sourcePort = xmlSafeString(text, false).toRawUTF8();

  2312.                     else if (tag.equalsIgnoreCase("target"))

  2313.                         targetPort = xmlSafeString(text, false).toRawUTF8();

  2314.                 }

  2315. 

  2316.                 if (sourcePort.isNotEmpty() && targetPort.isNotEmpty())

  2317.                     restorePatchbayConnection(false, sourcePort, targetPort, !isUsingExternal);

  2318.             }

  2319.             break;

  2320.         }

  2321. 

  2322.         callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2323. 

  2324.         if (pData->aboutToClose)

  2325.             return true;

  2326.     }

  2327. 

  2328.     // if we're running inside some session-manager (and using JACK), let them handle the external connections

  2329.     bool loadExternalConnections;

  2330. 

  2331.     /**/ if (isPlugin)

  2332.         loadExternalConnections = false;

  2333.     else if (std::strcmp(getCurrentDriverName(), "JACK") != 0)

  2334.         loadExternalConnections = true;

  2335.     else if (std::getenv("CARLA_DONT_MANAGE_CONNECTIONS") != nullptr)

  2336.         loadExternalConnections = false;

  2337.     else if (std::getenv("LADISH_APP_NAME") != nullptr)

  2338.         loadExternalConnections = false;

  2339.     else if (std::getenv("NSM_URL") != nullptr)

  2340.         loadExternalConnections = false;

  2341.     else

  2342.         loadExternalConnections = true;

  2343. 

  2344.     // handle connections

  2345.     if (loadExternalConnections)

  2346.     {

  2347.         const bool isUsingExternal(pData->options.processMode != ENGINE_PROCESS_MODE_PATCHBAY ||

  2348.                                    pData->graph.isUsingExternal());

  2349. 

  2350.         for (XmlElement* elem = xmlElement->getFirstChildElement(); elem != nullptr; elem = elem->getNextElement())

  2351.         {

  2352.             const String& tagName(elem->getTagName());

  2353. 

  2354.             // check if we want to load patchbay-mode connections into an external (multi-client) graph

  2355.             if (tagName.equalsIgnoreCase("patchbay"))

  2356.             {

  2357.                 if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)

  2358.                     continue;

  2359.             }

  2360.             // or load external patchbay connections

  2361.             else if (! tagName.equalsIgnoreCase("externalpatchbay"))

  2362.             {

  2363.                 continue;

  2364.             }

  2365. 

  2366.             CarlaString sourcePort, targetPort;

  2367. 

  2368.             for (XmlElement* patchElem = elem->getFirstChildElement(); patchElem != nullptr; patchElem = patchElem->getNextElement())

  2369.             {

  2370.                 const String& patchTag(patchElem->getTagName());

  2371. 

  2372.                 sourcePort.clear();

  2373.                 targetPort.clear();

  2374. 

  2375.                 if (! patchTag.equalsIgnoreCase("connection"))

  2376.                     continue;

  2377. 

  2378.                 for (XmlElement* connElem = patchElem->getFirstChildElement(); connElem != nullptr; connElem = connElem->getNextElement())

  2379.                 {

  2380.                     const String& tag(connElem->getTagName());

  2381.                     const String  text(connElem->getAllSubText().trim());

  2382. 

  2383.                     /**/ if (tag.equalsIgnoreCase("source"))

  2384.                         sourcePort = xmlSafeString(text, false).toRawUTF8();

  2385.                     else if (tag.equalsIgnoreCase("target"))

  2386.                         targetPort = xmlSafeString(text, false).toRawUTF8();

  2387.                 }

  2388. 

  2389.                 if (sourcePort.isNotEmpty() && targetPort.isNotEmpty())

  2390.                     restorePatchbayConnection(true, sourcePort, targetPort, isUsingExternal);

  2391.             }

  2392.             break;

  2393.         }

  2394.     }

  2395. 

  2396. #endif

  2397. 

  2398.     callback(ENGINE_CALLBACK_PROJECT_LOAD_FINISHED, 0, 0, 0, 0.0f, nullptr);

  2399.     return true;

  2400. }

  2401. 

  2402. // -----------------------------------------------------------------------

  2403. 

  2404. CARLA_BACKEND_END_NAMESPACE