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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) 2011-2014 Filipe Coelho <falktx@falktx.com>

  4.  *

  5.  * This program is free software; you can redistribute it and/or

  6.  * modify it under the terms of the GNU General Public License as

  7.  * published by the Free Software Foundation; either version 2 of

  8.  * the License, or any later version.

  9.  *

  10.  * This program is distributed in the hope that it will be useful,

  11.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  12.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  13.  * GNU General Public License for more details.

  14.  *

  15.  * For a full copy of the GNU General Public License see the doc/GPL.txt file.

  16.  */

  17. 

  18. /* TODO:

  19.  * - complete processRack(): carefully add to input, sorted events

  20.  * - implement processPatchbay()

  21.  * - implement oscSend_control_switch_plugins()

  22.  * - proper find&load plugins

  23.  * - something about the peaks?

  24.  */

  25. 

  26. #include "CarlaEngineInternal.hpp"

  27. #include "CarlaPlugin.hpp"

  28. 

  29. #include "CarlaBackendUtils.hpp"

  30. #include "CarlaBinaryUtils.hpp"

  31. #include "CarlaEngineUtils.hpp"

  32. #include "CarlaMathUtils.hpp"

  33. #include "CarlaStateUtils.hpp"

  34. #include "CarlaMIDI.h"

  35. 

  36. #include "jackbridge/JackBridge.hpp"

  37. #include "juce_core.h"

  38. 

  39. using juce::File;

  40. using juce::MemoryOutputStream;

  41. using juce::ScopedPointer;

  42. using juce::String;

  43. using juce::XmlDocument;

  44. using juce::XmlElement;

  45. 

  46. CARLA_BACKEND_START_NAMESPACE

  47. 

  48. // -----------------------------------------------------------------------

  49. // Carla Engine

  50. 

  51. CarlaEngine::CarlaEngine()

  52.     : pData(new ProtectedData(this))

  53. {

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

  55. }

  56. 

  57. CarlaEngine::~CarlaEngine()

  58. {

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

  60. 

  61.     delete pData;

  62. }

  63. 

  64. // -----------------------------------------------------------------------

  65. // Static calls

  66. 

  67. uint CarlaEngine::getDriverCount()

  68. {

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

  70. 

  71.     uint count = 0;

  72. 

  73.     if (jackbridge_is_ok())

  74.         count += 1;

  75. 

  76. #ifndef BUILD_BRIDGE

  77. # if defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN)

  78.     count += getJuceApiCount();

  79. # else

  80.     count += getRtAudioApiCount();

  81. # endif

  82. #endif

  83. 

  84.     return count;

  85. }

  86. 

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

  88. {

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

  90. 

  91.     uint index(index2);

  92. 

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

  94.         return "JACK";

  95. 

  96. #ifndef BUILD_BRIDGE

  97. # if defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN)

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

  99.     {

  100.         if (index < count)

  101.             return getJuceApiName(index);

  102.         index -= count;

  103.     }

  104. # else

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

  106.     {

  107.         if (index < count)

  108.             return getRtAudioApiName(index);

  109.         index -= count;

  110.     }

  111. # endif

  112. #endif

  113. 

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

  115.     return nullptr;

  116. }

  117. 

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

  119. {

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

  121. 

  122.     uint index(index2);

  123. 

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

  125.     {

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

  127.         return ret;

  128.     }

  129. 

  130. #ifndef BUILD_BRIDGE

  131. # if defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN)

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

  133.     {

  134.         if (index < count)

  135.             return getJuceApiDeviceNames(index);

  136.         index -= count;

  137.     }

  138. # else

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

  140.     {

  141.         if (index < count)

  142.             return getRtAudioApiDeviceNames(index);

  143.         index -= count;

  144.     }

  145. # endif

  146. #endif

  147. 

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

  149.     return nullptr;

  150. }

  151. 

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

  153. {

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

  155. 

  156.     uint index(index2);

  157. 

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

  159.     {

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

  161.         static EngineDriverDeviceInfo devInfo;

  162.         devInfo.hints       = ENGINE_DRIVER_DEVICE_VARIABLE_BUFFER_SIZE;

  163.         devInfo.bufferSizes = bufSizes;

  164.         devInfo.sampleRates = nullptr;

  165.         return &devInfo;

  166.     }

  167. 

  168. #ifndef BUILD_BRIDGE

  169. # if defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN)

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

  171.     {

  172.         if (index < count)

  173.             return getJuceDeviceInfo(index, deviceName);

  174.         index -= count;

  175.     }

  176. # else

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

  178.     {

  179.         if (index < count)

  180.             return getRtAudioDeviceInfo(index, deviceName);

  181.         index -= count;

  182.     }

  183. # endif

  184. #endif

  185. 

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

  187.     return nullptr;

  188. }

  189. 

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

  191. {

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

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

  194. 

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

  196.         return newJack();

  197. 

  198. #ifndef BUILD_BRIDGE

  199. # if defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN)

  200.     // -------------------------------------------------------------------

  201.     // macos

  202. 

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

  204.         return newJuce(AUDIO_API_CORE);

  205. 

  206.     // -------------------------------------------------------------------

  207.     // windows

  208. 

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

  210.         return newJuce(AUDIO_API_ASIO);

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

  212.         return newJuce(AUDIO_API_DS);

  213. #else

  214.     // -------------------------------------------------------------------

  215.     // common

  216. 

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

  218.         return newRtAudio(AUDIO_API_JACK);

  219. 

  220.     // -------------------------------------------------------------------

  221.     // linux

  222. 

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

  224.         return newRtAudio(AUDIO_API_ALSA);

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

  226.         return newRtAudio(AUDIO_API_OSS);

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

  228.         return newRtAudio(AUDIO_API_PULSE);

  229. # endif

  230. #endif

  231. 

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

  233.     return nullptr;

  234. }

  235. 

  236. // -----------------------------------------------------------------------

  237. // Constant values

  238. 

  239. uint CarlaEngine::getMaxClientNameSize() const noexcept

  240. {

  241.     return STR_MAX/2;

  242. }

  243. 

  244. uint CarlaEngine::getMaxPortNameSize() const noexcept

  245. {

  246.     return STR_MAX;

  247. }

  248. 

  249. uint CarlaEngine::getCurrentPluginCount() const noexcept

  250. {

  251.     return pData->curPluginCount;

  252. }

  253. 

  254. uint CarlaEngine::getMaxPluginNumber() const noexcept

  255. {

  256.     return pData->maxPluginNumber;

  257. }

  258. 

  259. // -----------------------------------------------------------------------

  260. // Virtual, per-engine type calls

  261. 

  262. bool CarlaEngine::init(const char* const clientName)

  263. {

  264.     carla_debug("CarlaEngine::init(\"%s\")", clientName);

  265. 

  266.     if (! pData->init(clientName))

  267.         return false;

  268. 

  269.     callback(ENGINE_CALLBACK_ENGINE_STARTED, 0, pData->options.processMode, pData->options.transportMode, 0.0f, getCurrentDriverName());

  270.     return true;

  271. }

  272. 

  273. bool CarlaEngine::close()

  274. {

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

  276. 

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

  278.     {

  279.         pData->aboutToClose = true;

  280.         removeAllPlugins();

  281.     }

  282. 

  283. #ifndef BUILD_BRIDGE

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

  285.         oscSend_control_exit();

  286. #endif

  287. 

  288.     pData->close();

  289. 

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

  291.     return true;

  292. }

  293. 

  294. void CarlaEngine::idle() noexcept

  295. {

  296.     CARLA_SAFE_ASSERT_RETURN(pData->nextAction.opcode.get() == kEnginePostActionNull,); // FIXME REMOVE

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

  298. 

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

  300.     {

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

  302. 

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

  304.         {

  305.             try {

  306.                 plugin->idle();

  307.             } CARLA_SAFE_EXCEPTION_CONTINUE("Plugin idle");

  308.         }

  309.     }

  310. 

  311.     pData->osc.idle();

  312. }

  313. 

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

  315. {

  316.     return new CarlaEngineClient(*this);

  317. }

  318. 

  319. // -----------------------------------------------------------------------

  320. // Plugin management

  321. 

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

  323. {

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

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

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

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

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

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

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

  331. 

  332.     uint id;

  333. 

  334. #ifndef BUILD_BRIDGE

  335.     CarlaPlugin* oldPlugin = nullptr;

  336. 

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

  338.     {

  339.         id = pData->nextPluginId;

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

  341. 

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

  343. 

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

  345.     }

  346.     else

  347. #endif

  348.     {

  349.         id = pData->curPluginCount;

  350. 

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

  352.         {

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

  354.             return false;

  355.         }

  356. 

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

  358.     }

  359. 

  360.     CarlaPlugin::Initializer initializer = {

  361.         this,

  362.         id,

  363.         filename,

  364.         name,

  365.         label,

  366.         uniqueId

  367.     };

  368. 

  369.     CarlaPlugin* plugin = nullptr;

  370. 

  371. #ifndef BUILD_BRIDGE

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

  373. 

  374.     if (bridgeBinary.isNotEmpty())

  375.     {

  376. # ifndef CARLA_OS_WIN

  377.         if (btype == BINARY_NATIVE)

  378.         {

  379.             bridgeBinary += OS_SEP_STR "carla-bridge-native";

  380.         }

  381.         else

  382. # endif

  383.         {

  384.             switch (btype)

  385.             {

  386.             case BINARY_POSIX32:

  387.                 bridgeBinary += OS_SEP_STR "carla-bridge-posix32";

  388.                 break;

  389.             case BINARY_POSIX64:

  390.                 bridgeBinary += OS_SEP_STR "carla-bridge-posix64";

  391.                 break;

  392.             case BINARY_WIN32:

  393.                 bridgeBinary += OS_SEP_STR "carla-bridge-win32.exe";

  394.                 break;

  395.             case BINARY_WIN64:

  396.                 bridgeBinary += OS_SEP_STR "carla-bridge-win64.exe";

  397.                 break;

  398.             default:

  399.                 bridgeBinary.clear();

  400.                 break;

  401.             }

  402.         }

  403. 

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

  405.             bridgeBinary.clear();

  406.     }

  407. 

  408.     if (ptype != PLUGIN_INTERNAL && (btype != BINARY_NATIVE || (pData->options.preferPluginBridges && bridgeBinary.isNotEmpty())))

  409.     {

  410.         if (bridgeBinary.isNotEmpty())

  411.         {

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

  413.         }

  414. # ifdef CARLA_OS_LINUX

  415.         // fallback to dssi-vst if possible

  416.         else if (btype == BINARY_WIN32 && File("/usr/lib/dssi/dssi-vst.so").existsAsFile())

  417.         {

  418.             File file(filename);

  419. 

  420.             CarlaString label2(file.getFileName().toRawUTF8());

  421.             label2.replace(' ', '*');

  422. 

  423.             CarlaPlugin::Initializer init2 = {

  424.                 this,

  425.                 id,

  426.                 "/usr/lib/dssi/dssi-vst.so",

  427.                 name,

  428.                 label2,

  429.                 uniqueId

  430.             };

  431. 

  432.             char* const oldVstPath(getenv("VST_PATH"));

  433.             carla_setenv("VST_PATH", file.getParentDirectory().getFullPathName().toRawUTF8());

  434. 

  435.             plugin = CarlaPlugin::newDSSI(init2);

  436. 

  437.             if (oldVstPath != nullptr)

  438.                 carla_setenv("VST_PATH", oldVstPath);

  439.         }

  440. # endif

  441.         else

  442.         {

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

  444.             return false;

  445.         }

  446.     }

  447.     else

  448. #endif // ! BUILD_BRIDGE

  449.     {

  450.         bool use16Outs;

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

  452. 

  453.         switch (ptype)

  454.         {

  455.         case PLUGIN_NONE:

  456.             break;

  457. 

  458.         case PLUGIN_INTERNAL:

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

  460.             {

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

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

  463.             }

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

  465.             {

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

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

  468.             }

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

  470.             {

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

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

  473.             }

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

  475.             {

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

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

  478.             }*/

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

  480.             break;

  481. 

  482.         case PLUGIN_LADSPA:

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

  484.             break;

  485. 

  486.         case PLUGIN_DSSI:

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

  488.             break;

  489. 

  490.         case PLUGIN_LV2:

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

  492.             break;

  493. 

  494.         case PLUGIN_VST:

  495.             plugin = CarlaPlugin::newVST(initializer);

  496.             break;

  497. 

  498.         case PLUGIN_VST3:

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

  500.             break;

  501. 

  502.         case PLUGIN_AU:

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

  504.             break;

  505. 

  506.         case PLUGIN_GIG:

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

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

  509.             break;

  510. 

  511.         case PLUGIN_SF2:

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

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

  514.             break;

  515. 

  516.         case PLUGIN_SFZ:

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

  518.             break;

  519.         }

  520.     }

  521. 

  522.     if (plugin == nullptr)

  523.         return false;

  524. 

  525.     plugin->registerToOscClient();

  526. 

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

  528.     pluginData.plugin      = plugin;

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

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

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

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

  533. 

  534. #ifndef BUILD_BRIDGE

  535.     if (oldPlugin != nullptr)

  536.     {

  537.         // the engine thread might be reading from the old plugin

  538.         pData->thread.stopThread(500);

  539.         pData->thread.startThread();

  540. 

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

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

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

  544. 

  545.         delete oldPlugin;

  546. 

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

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

  549. 

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

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

  552. 

  553.         if (wasActive)

  554.             plugin->setActive(true, true, true);

  555. 

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

  557.     }

  558.     else

  559. #endif

  560.     {

  561.         ++pData->curPluginCount;

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

  563.     }

  564. 

  565.     return true;

  566. }

  567. 

  568. 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)

  569. {

  570.     return addPlugin(BINARY_NATIVE, ptype, filename, name, label, uniqueId, extra);

  571. }

  572. 

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

  574. {

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

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

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

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

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

  580. 

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

  582. 

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

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

  585. 

  586.     pData->thread.stopThread(500);

  587. 

  588. #ifndef BUILD_BRIDGE

  589.     const ScopedActionLock sal(pData, kEnginePostActionRemovePlugin, id, 0, isRunning());

  590. 

  591.     if (isOscControlRegistered())

  592.         oscSend_control_remove_plugin(id);

  593. #else

  594.     pData->curPluginCount = 0;

  595.     carla_zeroStruct(pData->plugins, 1);

  596. #endif

  597. 

  598.     delete plugin;

  599. 

  600.     if (isRunning() && ! pData->aboutToClose)

  601.         pData->thread.startThread();

  602. 

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

  604.     return true;

  605. }

  606. 

  607. bool CarlaEngine::removeAllPlugins()

  608. {

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

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

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

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

  613. 

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

  615.         return true;

  616. 

  617.     pData->thread.stopThread(500);

  618. 

  619.     const ScopedActionLock sal(pData, kEnginePostActionZeroCount, 0, 0, isRunning());

  620. 

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

  622. 

  623.     for (uint i=0; i < pData->maxPluginNumber; ++i)

  624.     {

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

  626. 

  627.         if (pluginData.plugin != nullptr)

  628.         {

  629.             delete pluginData.plugin;

  630.             pluginData.plugin = nullptr;

  631.         }

  632. 

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

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

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

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

  637. 

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

  639.     }

  640. 

  641.     if (isRunning() && ! pData->aboutToClose)

  642.         pData->thread.startThread();

  643. 

  644.     return true;

  645. }

  646. 

  647. #ifndef BUILD_BRIDGE

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

  649. {

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

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

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

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

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

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

  656. 

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

  658. 

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

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

  661. 

  662.     if (const char* const name = getUniquePluginName(newName))

  663.     {

  664.         plugin->setName(name);

  665.         return name;

  666.     }

  667. 

  668.     setLastError("Unable to get new unique plugin name");

  669.     return nullptr;

  670. }

  671. 

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

  673. {

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

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

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

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

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

  679. 

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

  681. 

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

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

  684. 

  685.     char label[STR_MAX+1];

  686.     carla_zeroChar(label, STR_MAX+1);

  687.     plugin->getLabel(label);

  688. 

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

  690. 

  691.     if (! addPlugin(plugin->getBinaryType(), plugin->getType(), plugin->getFilename(), plugin->getName(), label, plugin->getUniqueId(), plugin->getExtraStuff()))

  692.         return false;

  693. 

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

  695. 

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

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

  698. 

  699.     return true;

  700. }

  701. 

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

  703. {

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

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

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

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

  708. 

  709.     // might use this to reset

  710.     if (id == pData->curPluginCount || id == pData->maxPluginNumber)

  711.     {

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

  713.         return true;

  714.     }

  715. 

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

  717. 

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

  719. 

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

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

  722. 

  723.     pData->nextPluginId = id;

  724. 

  725.     return true;

  726. }

  727. 

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

  729. {

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

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

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

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

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

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

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

  737. 

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

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

  740. 

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

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

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

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

  745. 

  746.     pData->thread.stopThread(500);

  747. 

  748.     const ScopedActionLock sal(pData, kEnginePostActionSwitchPlugins, idA, idB, isRunning());

  749. 

  750.     // TODO

  751.     //if (isOscControlRegistered())

  752.     //    oscSend_control_switch_plugins(idA, idB);

  753. 

  754.     if (isRunning() && ! pData->aboutToClose)

  755.         pData->thread.startThread();

  756. 

  757.     return true;

  758. }

  759. #endif

  760. 

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

  762. {

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

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

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

  766. 

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

  768. }

  769. 

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

  771. {

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

  773. }

  774. 

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

  776. {

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

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

  779. 

  780.     CarlaString sname;

  781.     sname = name;

  782. 

  783.     if (sname.isEmpty())

  784.     {

  785.         sname = "(No name)";

  786.         return sname.dup();

  787.     }

  788. 

  789.     const size_t maxNameSize(carla_min<uint>(getMaxClientNameSize(), 0xff, 6) - 6); // 6 = strlen(" (10)") + 1

  790. 

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

  792.         return sname.dup();

  793. 

  794.     sname.truncate(maxNameSize);

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

  796. 

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

  798.     {

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

  800. 

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

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

  803.         {

  804.             if (sname != pluginName)

  805.                 continue;

  806.         }

  807. 

  808.         // Check if string has already been modified

  809.         {

  810.             const size_t len(sname.length());

  811. 

  812.             // 1 digit, ex: " (2)"

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

  814.             {

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

  816. 

  817.                 if (number == 9)

  818.                 {

  819.                     // next number is 10, 2 digits

  820.                     sname.truncate(len-4);

  821.                     sname += " (10)";

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

  823.                 }

  824.                 else

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

  826. 

  827.                 continue;

  828.             }

  829. 

  830.             // 2 digits, ex: " (11)"

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

  832.             {

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

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

  835. 

  836.                 if (n2 == '9')

  837.                 {

  838.                     n2 = '0';

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

  840.                 }

  841.                 else

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

  843. 

  844.                 sname[len-2] = n2;

  845.                 sname[len-3] = n3;

  846. 

  847.                 continue;

  848.             }

  849.         }

  850. 

  851.         // Modify string if not

  852.         sname += " (2)";

  853.     }

  854. 

  855.     return sname.dup();

  856. }

  857. 

  858. // -----------------------------------------------------------------------

  859. // Project management

  860. 

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

  862. {

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

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

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

  866. 

  867.     File file(filename);

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

  869. 

  870.     CarlaString baseName(file.getFileName().toRawUTF8());

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

  872. 

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

  874. 

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

  876.         return loadProject(filename);

  877. 

  878.     // -------------------------------------------------------------------

  879. 

  880.     if (extension == "gig")

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

  882. 

  883.     if (extension == "sf2")

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

  885. 

  886.     if (extension == "sfz")

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

  888. 

  889.     // -------------------------------------------------------------------

  890. 

  891.     if (extension == "aif" || extension == "aiff" || extension == "bwf" || extension == "flac" || extension == "ogg" || extension == "wav")

  892.     {

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

  894.         {

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

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

  897.             return true;

  898.         }

  899.         return false;

  900.     }

  901. 

  902.     // -------------------------------------------------------------------

  903. 

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

  905.     {

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

  907.         {

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

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

  910.             return true;

  911.         }

  912.         return false;

  913.     }

  914. 

  915.     // -------------------------------------------------------------------

  916.     // ZynAddSubFX

  917. 

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

  919.     {

  920. #ifdef WANT_ZYNADDSUBFX

  921.         if (addPlugin(PLUGIN_INTERNAL, nullptr, baseName, "zynaddsubfx", 0, nullptr))

  922.         {

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

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

  925.             return true;

  926.         }

  927.         return false;

  928. #else

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

  930.         return false;

  931. #endif

  932.     }

  933. 

  934.     // -------------------------------------------------------------------

  935. 

  936.     setLastError("Unknown file extension");

  937.     return false;

  938. }

  939. 

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

  941. {

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

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

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

  945. 

  946.     File file(filename);

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

  948. 

  949.     XmlDocument xml(file);

  950.     ScopedPointer<XmlElement> xmlElement(xml.getDocumentElement(true));

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

  952. 

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

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

  955. 

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

  957.     {

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

  959.         return false;

  960.     }

  961. 

  962.     // completely load file

  963.     xmlElement = xml.getDocumentElement(false);

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

  965. 

  966.     // handle plugins first

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

  968.     {

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

  970. 

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

  972.         {

  973.             StateSave stateSave;

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

  975. 

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

  977. 

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

  979. 

  980.             const void* extraStuff = nullptr;

  981. 

  982.             // check if using GIG or SF2 16outs

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

  984. 

  985.             const BinaryType btype(getBinaryTypeFromFile(stateSave.binary));

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

  987. 

  988.             if (CarlaString(stateSave.label).endsWith(kUse16OutsSuffix))

  989.             {

  990.                 if (ptype == PLUGIN_GIG || ptype == PLUGIN_SF2)

  991.                     extraStuff = "true";

  992.             }

  993. 

  994.             // TODO - proper find&load plugins

  995. 

  996.             if (addPlugin(btype, ptype, stateSave.binary, stateSave.name, stateSave.label, stateSave.uniqueId, extraStuff))

  997.             {

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

  999.                     plugin->loadStateSave(stateSave);

  1000.             }

  1001.             else

  1002.                 carla_stderr2("Failed to load a plugin, error was:\n%s", getLastError());

  1003.         }

  1004. 

  1005.         if (isPreset)

  1006.             return true;

  1007.     }

  1008. 

  1009. #ifndef BUILD_BRIDGE

  1010.     callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  1011. 

  1012.     // if we're running inside some session-manager, let them handle the connections

  1013.     if (pData->options.processMode != ENGINE_PROCESS_MODE_PATCHBAY)

  1014.     {

  1015.         if (std::getenv("CARLA_DONT_MANAGE_CONNECTIONS") != nullptr || std::getenv("LADISH_APP_NAME") != nullptr || std::getenv("NSM_URL") != nullptr)

  1016.             return true;

  1017.     }

  1018. 

  1019.     // now handle connections

  1020.     for (XmlElement* elem = xmlElement->getFirstChildElement(); elem != nullptr; elem = elem->getNextElement())

  1021.     {

  1022.         const String& tagName(elem->getTagName());

  1023. 

  1024.         if (tagName.equalsIgnoreCase("patchbay"))

  1025.         {

  1026.             CarlaString sourcePort, targetPort;

  1027. 

  1028.             for (XmlElement* patchElem = elem->getFirstChildElement(); patchElem != nullptr; patchElem = patchElem->getNextElement())

  1029.             {

  1030.                 const String& patchTag(patchElem->getTagName());

  1031. 

  1032.                 sourcePort.clear();

  1033.                 targetPort.clear();

  1034. 

  1035.                 if (! patchTag.equalsIgnoreCase("connection"))

  1036.                     continue;

  1037. 

  1038.                 for (XmlElement* connElem = patchElem->getFirstChildElement(); connElem != nullptr; connElem = connElem->getNextElement())

  1039.                 {

  1040.                     const String& tag(connElem->getTagName());

  1041.                     const String  text(connElem->getAllSubText().trim());

  1042. 

  1043.                     if (tag.equalsIgnoreCase("source"))

  1044.                         sourcePort = text.toRawUTF8();

  1045.                     else if (tag.equalsIgnoreCase("target"))

  1046.                         targetPort = text.toRawUTF8();

  1047.                 }

  1048. 

  1049.                 if (sourcePort.isNotEmpty() && targetPort.isNotEmpty())

  1050.                     restorePatchbayConnection(sourcePort, targetPort);

  1051.             }

  1052.             break;

  1053.         }

  1054.     }

  1055. #endif

  1056. 

  1057.     return true;

  1058. }

  1059. 

  1060. bool CarlaEngine::saveProject(const char* const filename)

  1061. {

  1062.     CARLA_SAFE_ASSERT_RETURN_ERR(filename != nullptr && filename[0] != '\0', "Invalid filename");

  1063.     carla_debug("CarlaEngine::saveProject(\"%s\")", filename);

  1064. 

  1065.     MemoryOutputStream out;

  1066.     out << "<?xml version='1.0' encoding='UTF-8'?>\n";

  1067.     out << "<!DOCTYPE CARLA-PROJECT>\n";

  1068.     out << "<CARLA-PROJECT VERSION='2.0'>\n";

  1069. 

  1070.     bool firstPlugin = true;

  1071.     char strBuf[STR_MAX+1];

  1072. 

  1073.     for (uint i=0; i < pData->curPluginCount; ++i)

  1074.     {

  1075.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1076. 

  1077.         if (plugin != nullptr && plugin->isEnabled())

  1078.         {

  1079.             if (! firstPlugin)

  1080.                 out << "\n";

  1081. 

  1082.             strBuf[0] = '\0';

  1083. 

  1084.             plugin->getRealName(strBuf);

  1085. 

  1086.             //if (strBuf[0] != '\0')

  1087.             //    out << QString(" <!-- %1 -->\n").arg(xmlSafeString(strBuf, true));

  1088. 

  1089.             out << " <Plugin>\n";

  1090.             out << plugin->getStateSave().toString();

  1091.             out << " </Plugin>\n";

  1092. 

  1093.             firstPlugin = false;

  1094.         }

  1095.     }

  1096. 

  1097. #ifndef BUILD_BRIDGE

  1098.     // if we're running inside some session-manager, let them handle the connections

  1099.     if (pData->options.processMode != ENGINE_PROCESS_MODE_PATCHBAY)

  1100.     {

  1101.         if (std::getenv("CARLA_DONT_MANAGE_CONNECTIONS") != nullptr || std::getenv("LADISH_APP_NAME") != nullptr || std::getenv("NSM_URL") != nullptr)

  1102.             return true;

  1103.     }

  1104. 

  1105.     if (const char* const* patchbayConns = getPatchbayConnections())

  1106.     {

  1107.         if (! firstPlugin)

  1108.             out << "\n";

  1109. 

  1110.         out << " <Patchbay>\n";

  1111. 

  1112.         for (int i=0; patchbayConns[i] != nullptr && patchbayConns[i+1] != nullptr; ++i, ++i )

  1113.         {

  1114.             const char* const connSource(patchbayConns[i]);

  1115.             const char* const connTarget(patchbayConns[i+1]);

  1116. 

  1117.             CARLA_SAFE_ASSERT_CONTINUE(connSource != nullptr && connSource[0] != '\0');

  1118.             CARLA_SAFE_ASSERT_CONTINUE(connTarget != nullptr && connTarget[0] != '\0');

  1119. 

  1120.             out << "  <Connection>\n";

  1121.             out << "   <Source>" << connSource << "</Source>\n";

  1122.             out << "   <Target>" << connTarget << "</Target>\n";

  1123.             out << "  </Connection>\n";

  1124. 

  1125.             delete[] connSource;

  1126.             delete[] connTarget;

  1127.         }

  1128. 

  1129.         out << " </Patchbay>\n";

  1130.     }

  1131. #endif

  1132. 

  1133.     out << "</CARLA-PROJECT>\n";

  1134. 

  1135.     File file(filename);

  1136. 

  1137.     if (file.replaceWithData(out.getData(), out.getDataSize()))

  1138.         return true;

  1139. 

  1140.     setLastError("Failed to write file");

  1141.     return false;

  1142. }

  1143. 

  1144. // -----------------------------------------------------------------------

  1145. // Information (base)

  1146. 

  1147. uint CarlaEngine::getHints() const noexcept

  1148. {

  1149.     return pData->hints;

  1150. }

  1151. 

  1152. uint32_t CarlaEngine::getBufferSize() const noexcept

  1153. {

  1154.     return pData->bufferSize;

  1155. }

  1156. 

  1157. double CarlaEngine::getSampleRate() const noexcept

  1158. {

  1159.     return pData->sampleRate;

  1160. }

  1161. 

  1162. const char* CarlaEngine::getName() const noexcept

  1163. {

  1164.     return pData->name;

  1165. }

  1166. 

  1167. EngineProcessMode CarlaEngine::getProccessMode() const noexcept

  1168. {

  1169.     return pData->options.processMode;

  1170. }

  1171. 

  1172. const EngineOptions& CarlaEngine::getOptions() const noexcept

  1173. {

  1174.     return pData->options;

  1175. }

  1176. 

  1177. const EngineTimeInfo& CarlaEngine::getTimeInfo() const noexcept

  1178. {

  1179.     return pData->timeInfo;

  1180. }

  1181. 

  1182. // -----------------------------------------------------------------------

  1183. // Information (peaks)

  1184. 

  1185. float CarlaEngine::getInputPeak(const uint pluginId, const bool isLeft) const noexcept

  1186. {

  1187.     CARLA_SAFE_ASSERT_RETURN(pluginId < pData->curPluginCount, 0.0f);

  1188. 

  1189.     return pData->plugins[pluginId].insPeak[isLeft ? 0 : 1];

  1190. }

  1191. 

  1192. float CarlaEngine::getOutputPeak(const uint pluginId, const bool isLeft) const noexcept

  1193. {

  1194.     CARLA_SAFE_ASSERT_RETURN(pluginId < pData->curPluginCount, 0.0f);

  1195. 

  1196.     return pData->plugins[pluginId].outsPeak[isLeft ? 0 : 1];

  1197. }

  1198. 

  1199. // -----------------------------------------------------------------------

  1200. // Callback

  1201. 

  1202. void CarlaEngine::callback(const EngineCallbackOpcode action, const uint pluginId, const int value1, const int value2, const float value3, const char* const valueStr) noexcept

  1203. {

  1204.     carla_debug("CarlaEngine::callback(%i:%s, %i, %i, %i, %f, \"%s\")", action, EngineCallbackOpcode2Str(action), pluginId, value1, value2, value3, valueStr);

  1205. 

  1206. #ifdef BUILD_BRIDGE

  1207.     if (pData->isIdling)

  1208. #else

  1209.     if (pData->isIdling && action != ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED)

  1210. #endif

  1211.     {

  1212.         carla_stdout("callback while idling (%i:%s, %i, %i, %i, %f, \"%s\")", action, EngineCallbackOpcode2Str(action), pluginId, value1, value2, value3, valueStr);

  1213.     }

  1214. 

  1215.     if (action == ENGINE_CALLBACK_IDLE)

  1216.     {

  1217.         ++pData->isIdling;

  1218.     }

  1219. #ifdef BUILD_BRIDGE

  1220.     else if (pData->oscData != nullptr)

  1221.     {

  1222.         switch (action)

  1223.         {

  1224.         case ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  1225.             CARLA_SAFE_ASSERT_BREAK(value1 >= 0);

  1226.             oscSend_bridge_parameter_value(static_cast<uint>(value1), value3);

  1227.             break;

  1228.         case ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  1229.             CARLA_SAFE_ASSERT_BREAK(value1 >= 0);

  1230.             oscSend_bridge_default_value(static_cast<uint>(value1), value3);

  1231.             break;

  1232.         case ENGINE_CALLBACK_PROGRAM_CHANGED:

  1233.             CARLA_SAFE_ASSERT_BREAK(value1 >= -1);

  1234.             oscSend_bridge_current_program(value1);

  1235.             break;

  1236.         case ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  1237.             CARLA_SAFE_ASSERT_BREAK(value1 >= -1);

  1238.             oscSend_bridge_current_midi_program(value1);

  1239.             break;

  1240.         case ENGINE_CALLBACK_UI_STATE_CHANGED:

  1241.             if (value1 != 1)

  1242.                 oscSend_bridge_configure("CarlaBridgeHideGUI", "");

  1243.             break;

  1244.         default:

  1245.             break;

  1246.         }

  1247.     }

  1248. #endif

  1249. 

  1250.     if (pData->callback != nullptr)

  1251.     {

  1252.         try {

  1253.             pData->callback(pData->callbackPtr, action, pluginId, value1, value2, value3, valueStr);

  1254.         } CARLA_SAFE_EXCEPTION("callback");

  1255.     }

  1256. 

  1257.     if (action == ENGINE_CALLBACK_IDLE)

  1258.         --pData->isIdling;

  1259. }

  1260. 

  1261. void CarlaEngine::setCallback(const EngineCallbackFunc func, void* const ptr) noexcept

  1262. {

  1263.     carla_debug("CarlaEngine::setCallback(%p, %p)", func, ptr);

  1264. 

  1265.     pData->callback    = func;

  1266.     pData->callbackPtr = ptr;

  1267. }

  1268. 

  1269. // -----------------------------------------------------------------------

  1270. // File Callback

  1271. 

  1272. const char* CarlaEngine::runFileCallback(const FileCallbackOpcode action, const bool isDir, const char* const title, const char* const filter) noexcept

  1273. {

  1274.     CARLA_SAFE_ASSERT_RETURN(title != nullptr && title[0] != '\0', nullptr);

  1275.     CARLA_SAFE_ASSERT_RETURN(filter != nullptr, nullptr);

  1276.     carla_debug("CarlaEngine::runFileCallback(%i:%s, %s, \"%s\", \"%s\")", action, FileCallbackOpcode2Str(action), bool2str(isDir), title, filter);

  1277. 

  1278.     const char* ret = nullptr;

  1279. 

  1280.     if (pData->fileCallback != nullptr)

  1281.     {

  1282.         try {

  1283.             ret = pData->fileCallback(pData->fileCallbackPtr, action, isDir, title, filter);

  1284.         } CARLA_SAFE_EXCEPTION("runFileCallback");

  1285.     }

  1286. 

  1287.     return ret;

  1288. }

  1289. 

  1290. void CarlaEngine::setFileCallback(const FileCallbackFunc func, void* const ptr) noexcept

  1291. {

  1292.     carla_debug("CarlaEngine::setFileCallback(%p, %p)", func, ptr);

  1293. 

  1294.     pData->fileCallback    = func;

  1295.     pData->fileCallbackPtr = ptr;

  1296. }

  1297. 

  1298. // -----------------------------------------------------------------------

  1299. // Transport

  1300. 

  1301. void CarlaEngine::transportPlay() noexcept

  1302. {

  1303.     pData->time.playing = true;

  1304. }

  1305. 

  1306. void CarlaEngine::transportPause() noexcept

  1307. {

  1308.     pData->time.playing = false;

  1309. }

  1310. 

  1311. void CarlaEngine::transportRelocate(const uint64_t frame) noexcept

  1312. {

  1313.     pData->time.frame = frame;

  1314. }

  1315. 

  1316. // -----------------------------------------------------------------------

  1317. // Error handling

  1318. 

  1319. const char* CarlaEngine::getLastError() const noexcept

  1320. {

  1321.     return pData->lastError;

  1322. }

  1323. 

  1324. void CarlaEngine::setLastError(const char* const error) const noexcept

  1325. {

  1326.     pData->lastError = error;

  1327. }

  1328. 

  1329. void CarlaEngine::setAboutToClose() noexcept

  1330. {

  1331.     carla_debug("CarlaEngine::setAboutToClose()");

  1332. 

  1333.     pData->aboutToClose = true;

  1334. }

  1335. 

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

  1337. // Global options

  1338. 

  1339. void CarlaEngine::setOption(const EngineOption option, const int value, const char* const valueStr) noexcept

  1340. {

  1341.     carla_debug("CarlaEngine::setOption(%i:%s, %i, \"%s\")", option, EngineOption2Str(option), value, valueStr);

  1342. 

  1343.     if (isRunning() && (option == ENGINE_OPTION_PROCESS_MODE || option == ENGINE_OPTION_AUDIO_NUM_PERIODS || option == ENGINE_OPTION_AUDIO_DEVICE))

  1344.         return carla_stderr("CarlaEngine::setOption(%i:%s, %i, \"%s\") - Cannot set this option while engine is running!", option, EngineOption2Str(option), value, valueStr);

  1345. 

  1346.     switch (option)

  1347.     {

  1348.     case ENGINE_OPTION_DEBUG:

  1349.     case ENGINE_OPTION_NSM_INIT:

  1350.         break;

  1351. 

  1352.     case ENGINE_OPTION_PROCESS_MODE:

  1353.         CARLA_SAFE_ASSERT_RETURN(value >= ENGINE_PROCESS_MODE_SINGLE_CLIENT && value <= ENGINE_PROCESS_MODE_BRIDGE,);

  1354.         pData->options.processMode = static_cast<EngineProcessMode>(value);

  1355.         break;

  1356. 

  1357.     case ENGINE_OPTION_TRANSPORT_MODE:

  1358.         CARLA_SAFE_ASSERT_RETURN(value >= ENGINE_TRANSPORT_MODE_INTERNAL && value <= ENGINE_TRANSPORT_MODE_BRIDGE,);

  1359.         pData->options.transportMode = static_cast<EngineTransportMode>(value);

  1360.         break;

  1361. 

  1362.     case ENGINE_OPTION_FORCE_STEREO:

  1363.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1364.         pData->options.forceStereo = (value != 0);

  1365.         break;

  1366. 

  1367.     case ENGINE_OPTION_PREFER_PLUGIN_BRIDGES:

  1368.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1369.         pData->options.preferPluginBridges = (value != 0);

  1370.         break;

  1371. 

  1372.     case ENGINE_OPTION_PREFER_UI_BRIDGES:

  1373.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1374.         pData->options.preferUiBridges = (value != 0);

  1375.         break;

  1376. 

  1377.     case ENGINE_OPTION_UIS_ALWAYS_ON_TOP:

  1378.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1379.         pData->options.uisAlwaysOnTop = (value != 0);

  1380.         break;

  1381. 

  1382.     case ENGINE_OPTION_MAX_PARAMETERS:

  1383.         CARLA_SAFE_ASSERT_RETURN(value >= 0,);

  1384.         pData->options.maxParameters = static_cast<uint>(value);

  1385.         break;

  1386. 

  1387.     case ENGINE_OPTION_UI_BRIDGES_TIMEOUT:

  1388.         CARLA_SAFE_ASSERT_RETURN(value >= 0,);

  1389.         pData->options.uiBridgesTimeout = static_cast<uint>(value);

  1390.         break;

  1391. 

  1392.     case ENGINE_OPTION_AUDIO_NUM_PERIODS:

  1393.         CARLA_SAFE_ASSERT_RETURN(value >= 2 && value <= 3,);

  1394.         pData->options.audioNumPeriods = static_cast<uint>(value);

  1395.         break;

  1396. 

  1397.     case ENGINE_OPTION_AUDIO_BUFFER_SIZE:

  1398.         CARLA_SAFE_ASSERT_RETURN(value >= 8,);

  1399.         pData->options.audioBufferSize = static_cast<uint>(value);

  1400.         break;

  1401. 

  1402.     case ENGINE_OPTION_AUDIO_SAMPLE_RATE:

  1403.         CARLA_SAFE_ASSERT_RETURN(value >= 22050,);

  1404.         pData->options.audioSampleRate = static_cast<uint>(value);

  1405.         break;

  1406. 

  1407.     case ENGINE_OPTION_AUDIO_DEVICE:

  1408.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr,);

  1409. 

  1410.         if (pData->options.audioDevice != nullptr)

  1411.             delete[] pData->options.audioDevice;

  1412. 

  1413.         pData->options.audioDevice = carla_strdup_safe(valueStr);

  1414.         break;

  1415. 

  1416.     case ENGINE_OPTION_PATH_BINARIES:

  1417.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1418. 

  1419.         if (pData->options.binaryDir != nullptr)

  1420.             delete[] pData->options.binaryDir;

  1421. 

  1422.         pData->options.binaryDir = carla_strdup_safe(valueStr);

  1423.         break;

  1424. 

  1425.     case ENGINE_OPTION_PATH_RESOURCES:

  1426.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1427. 

  1428.         if (pData->options.resourceDir != nullptr)

  1429.             delete[] pData->options.resourceDir;

  1430. 

  1431.         pData->options.resourceDir = carla_strdup_safe(valueStr);

  1432.         break;

  1433. 

  1434.     case ENGINE_OPTION_FRONTEND_WIN_ID:

  1435.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1436.         const long long winId(std::strtoll(valueStr, nullptr, 16));

  1437.         CARLA_SAFE_ASSERT_RETURN(winId >= 0,);

  1438.         pData->options.frontendWinId = static_cast<uintptr_t>(winId);

  1439.         break;

  1440.     }

  1441. }

  1442. 

  1443. // -----------------------------------------------------------------------

  1444. // OSC Stuff

  1445. 

  1446. #ifdef BUILD_BRIDGE

  1447. bool CarlaEngine::isOscBridgeRegistered() const noexcept

  1448. {

  1449.     return (pData->oscData != nullptr);

  1450. }

  1451. #else

  1452. bool CarlaEngine::isOscControlRegistered() const noexcept

  1453. {

  1454.     return pData->osc.isControlRegistered();

  1455. }

  1456. #endif

  1457. 

  1458. void CarlaEngine::idleOsc() const noexcept

  1459. {

  1460.     pData->osc.idle();

  1461. }

  1462. 

  1463. const char* CarlaEngine::getOscServerPathTCP() const noexcept

  1464. {

  1465.     return pData->osc.getServerPathTCP();

  1466. }

  1467. 

  1468. const char* CarlaEngine::getOscServerPathUDP() const noexcept

  1469. {

  1470.     return pData->osc.getServerPathUDP();

  1471. }

  1472. 

  1473. #ifdef BUILD_BRIDGE

  1474. void CarlaEngine::setOscBridgeData(const CarlaOscData* const oscData) const noexcept

  1475. {

  1476.     pData->oscData = oscData;

  1477. }

  1478. #endif

  1479. 

  1480. // -----------------------------------------------------------------------

  1481. // Helper functions

  1482. 

  1483. EngineEvent* CarlaEngine::getInternalEventBuffer(const bool isInput) const noexcept

  1484. {

  1485.     return isInput ? pData->events.in : pData->events.out;

  1486. }

  1487. 

  1488. void CarlaEngine::registerEnginePlugin(const uint id, CarlaPlugin* const plugin) noexcept

  1489. {

  1490.     CARLA_SAFE_ASSERT_RETURN(id == pData->curPluginCount,);

  1491.     carla_debug("CarlaEngine::registerEnginePlugin(%i, %p)", id, plugin);

  1492. 

  1493.     pData->plugins[id].plugin = plugin;

  1494. }

  1495. 

  1496. // -----------------------------------------------------------------------

  1497. // Internal stuff

  1498. 

  1499. void CarlaEngine::bufferSizeChanged(const uint32_t newBufferSize)

  1500. {

  1501.     carla_debug("CarlaEngine::bufferSizeChanged(%i)", newBufferSize);

  1502. 

  1503. #ifndef BUILD_BRIDGE

  1504.     pData->graph.setBufferSize(newBufferSize);

  1505. #endif

  1506. 

  1507.     for (uint i=0; i < pData->curPluginCount; ++i)

  1508.     {

  1509.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1510. 

  1511.         if (plugin != nullptr && plugin->isEnabled())

  1512.             plugin->bufferSizeChanged(newBufferSize);

  1513.     }

  1514. 

  1515.     callback(ENGINE_CALLBACK_BUFFER_SIZE_CHANGED, 0, static_cast<int>(newBufferSize), 0, 0.0f, nullptr);

  1516. }

  1517. 

  1518. void CarlaEngine::sampleRateChanged(const double newSampleRate)

  1519. {

  1520.     carla_debug("CarlaEngine::sampleRateChanged(%g)", newSampleRate);

  1521. 

  1522. #ifndef BUILD_BRIDGE

  1523.     pData->graph.setSampleRate(newSampleRate);

  1524. #endif

  1525. 

  1526.     for (uint i=0; i < pData->curPluginCount; ++i)

  1527.     {

  1528.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1529. 

  1530.         if (plugin != nullptr && plugin->isEnabled())

  1531.             plugin->sampleRateChanged(newSampleRate);

  1532.     }

  1533. 

  1534.     callback(ENGINE_CALLBACK_SAMPLE_RATE_CHANGED, 0, 0, 0, static_cast<float>(newSampleRate), nullptr);

  1535. }

  1536. 

  1537. void CarlaEngine::offlineModeChanged(const bool isOfflineNow)

  1538. {

  1539.     carla_debug("CarlaEngine::offlineModeChanged(%s)", bool2str(isOfflineNow));

  1540. 

  1541. #ifndef BUILD_BRIDGE

  1542.     pData->graph.setOffline(isOfflineNow);

  1543. #endif

  1544. 

  1545.     for (uint i=0; i < pData->curPluginCount; ++i)

  1546.     {

  1547.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1548. 

  1549.         if (plugin != nullptr && plugin->isEnabled())

  1550.             plugin->offlineModeChanged(isOfflineNow);

  1551.     }

  1552. }

  1553. 

  1554. void CarlaEngine::runPendingRtEvents() noexcept

  1555. {

  1556.     pData->doNextPluginAction(true);

  1557. 

  1558.     if (pData->time.playing)

  1559.         pData->time.frame += pData->bufferSize;

  1560. 

  1561.     if (pData->options.transportMode == ENGINE_TRANSPORT_MODE_INTERNAL)

  1562.     {

  1563.         pData->timeInfo.playing = pData->time.playing;

  1564.         pData->timeInfo.frame   = pData->time.frame;

  1565.     }

  1566. }

  1567. 

  1568. void CarlaEngine::setPluginPeaks(const uint pluginId, float const inPeaks[2], float const outPeaks[2]) noexcept

  1569. {

  1570.     EnginePluginData& pluginData(pData->plugins[pluginId]);

  1571. 

  1572.     pluginData.insPeak[0]  = inPeaks[0];

  1573.     pluginData.insPeak[1]  = inPeaks[1];

  1574.     pluginData.outsPeak[0] = outPeaks[0];

  1575.     pluginData.outsPeak[1] = outPeaks[1];

  1576. }

  1577. 

  1578. // -----------------------------------------------------------------------

  1579. 

  1580. CARLA_BACKEND_END_NAMESPACE