falkTX
/
Carla
mirror of https://github.com/falkTX/Carla
1
0
Fork 0
Code Releases 42 Activity
Audio plugin host https://kx.studio/carla
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
2117 Commits
16 Branches
14GB
Tree: 017b87f811
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from '017b87f811'
${ noResults }
Carla/source/backend/engine/CarlaEngine.cpp

1601 lines
50KB
Raw Blame History 

  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 += CARLA_OS_SEP_STR "carla-bridge-native";

  380.         }

  381.         else

  382. # endif

  383.         {

  384.             switch (btype)

  385.             {

  386.             case BINARY_POSIX32:

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

  388.                 break;

  389.             case BINARY_POSIX64:

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

  391.                 break;

  392.             case BINARY_WIN32:

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

  394.                 break;

  395.             case BINARY_WIN64:

  396.                 bridgeBinary += CARLA_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.     for (uint i=id; i < pData->curPluginCount; ++i)

  592.     {

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

  594.         CARLA_SAFE_ASSERT_BREAK(plugin2 != nullptr);

  595.         plugin2->updateOscURL();

  596.     }

  597. 

  598.     if (isOscControlRegistered())

  599.         oscSend_control_remove_plugin(id);

  600. #else

  601.     pData->curPluginCount = 0;

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

  603. #endif

  604. 

  605.     delete plugin;

  606. 

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

  608.         pData->thread.startThread();

  609. 

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

  611.     return true;

  612. }

  613. 

  614. bool CarlaEngine::removeAllPlugins()

  615. {

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

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

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

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

  620. 

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

  622.         return true;

  623. 

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

  625. 

  626.     const uint32_t curPluginCount(pData->curPluginCount);

  627. 

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

  629. 

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

  631. 

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

  633.     {

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

  635. 

  636.         if (pluginData.plugin != nullptr)

  637.         {

  638.             delete pluginData.plugin;

  639.             pluginData.plugin = nullptr;

  640.         }

  641. 

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

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

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

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

  646. 

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

  648.     }

  649. 

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

  651.         pData->thread.startThread();

  652. 

  653.     return true;

  654. }

  655. 

  656. #ifndef BUILD_BRIDGE

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

  658. {

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

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

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

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

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

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

  665. 

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

  667. 

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

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

  670. 

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

  672.     {

  673.         plugin->setName(name);

  674.         return name;

  675.     }

  676. 

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

  678.     return nullptr;

  679. }

  680. 

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

  682. {

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

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

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

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

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

  688. 

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

  690. 

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

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

  693. 

  694.     char label[STR_MAX+1];

  695.     carla_zeroChar(label, STR_MAX+1);

  696.     plugin->getLabel(label);

  697. 

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

  699. 

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

  701.         return false;

  702. 

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

  704. 

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

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

  707. 

  708.     return true;

  709. }

  710. 

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

  712. {

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

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

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

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

  717. 

  718.     // might use this to reset

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

  720.     {

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

  722.         return true;

  723.     }

  724. 

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

  726. 

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

  728. 

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

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

  731. 

  732.     pData->nextPluginId = id;

  733. 

  734.     return true;

  735. }

  736. 

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

  738. {

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

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

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

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

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

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

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

  746. 

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

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

  749. 

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

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

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

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

  754. 

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

  756. 

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

  758. 

  759.     if (CarlaPlugin* const plugin = pData->plugins[idA].plugin)

  760.         plugin->updateOscURL();

  761. 

  762.     if (CarlaPlugin* const plugin = pData->plugins[idB].plugin)

  763.         plugin->updateOscURL();

  764. 

  765.     // TODO

  766.     //if (isOscControlRegistered())

  767.     //    oscSend_control_switch_plugins(idA, idB);

  768. 

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

  770.         pData->thread.startThread();

  771. 

  772.     return true;

  773. }

  774. #endif

  775. 

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

  777. {

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

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

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

  781. 

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

  783. }

  784. 

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

  786. {

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

  788. }

  789. 

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

  791. {

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

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

  794. 

  795.     CarlaString sname;

  796.     sname = name;

  797. 

  798.     if (sname.isEmpty())

  799.     {

  800.         sname = "(No name)";

  801.         return sname.dup();

  802.     }

  803. 

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

  805. 

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

  807.         return sname.dup();

  808. 

  809.     sname.truncate(maxNameSize);

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

  811. 

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

  813.     {

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

  815. 

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

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

  818.         {

  819.             if (sname != pluginName)

  820.                 continue;

  821.         }

  822. 

  823.         // Check if string has already been modified

  824.         {

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

  826. 

  827.             // 1 digit, ex: " (2)"

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

  829.             {

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

  831. 

  832.                 if (number == 9)

  833.                 {

  834.                     // next number is 10, 2 digits

  835.                     sname.truncate(len-4);

  836.                     sname += " (10)";

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

  838.                 }

  839.                 else

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

  841. 

  842.                 continue;

  843.             }

  844. 

  845.             // 2 digits, ex: " (11)"

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

  847.             {

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

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

  850. 

  851.                 if (n2 == '9')

  852.                 {

  853.                     n2 = '0';

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

  855.                 }

  856.                 else

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

  858. 

  859.                 sname[len-2] = n2;

  860.                 sname[len-3] = n3;

  861. 

  862.                 continue;

  863.             }

  864.         }

  865. 

  866.         // Modify string if not

  867.         sname += " (2)";

  868.     }

  869. 

  870.     return sname.dup();

  871. }

  872. 

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

  874. // Project management

  875. 

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

  877. {

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

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

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

  881. 

  882.     File file(filename);

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

  884. 

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

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

  887. 

  888.     // -------------------------------------------------------------------

  889. 

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

  891.         return loadProject(filename);

  892. 

  893.     // -------------------------------------------------------------------

  894. 

  895.     if (extension == "gig")

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

  897. 

  898.     if (extension == "sf2")

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

  900. 

  901.     if (extension == "sfz")

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

  903. 

  904.     // -------------------------------------------------------------------

  905. 

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

  907.     {

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

  909.         {

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

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

  912.             return true;

  913.         }

  914.         return false;

  915.     }

  916. 

  917.     // -------------------------------------------------------------------

  918. 

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

  920.     {

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

  922.         {

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

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

  925.             return true;

  926.         }

  927.         return false;

  928.     }

  929. 

  930.     // -------------------------------------------------------------------

  931.     // ZynAddSubFX

  932. 

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

  934.     {

  935. #ifdef WANT_ZYNADDSUBFX

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

  937.         {

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

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

  940.             return true;

  941.         }

  942.         return false;

  943. #else

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

  945.         return false;

  946. #endif

  947.     }

  948. 

  949.     // -------------------------------------------------------------------

  950. 

  951.     setLastError("Unknown file extension");

  952.     return false;

  953. }

  954. 

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

  956. {

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

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

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

  960. 

  961.     File file(filename);

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

  963. 

  964.     XmlDocument xml(file);

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

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

  967. 

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

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

  970. 

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

  972.     {

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

  974.         return false;

  975.     }

  976. 

  977.     // completely load file

  978.     xmlElement = xml.getDocumentElement(false);

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

  980. 

  981.     // handle plugins first

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

  983.     {

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

  985. 

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

  987.         {

  988.             StateSave stateSave;

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

  990. 

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

  992. 

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

  994. 

  995.             const void* extraStuff = nullptr;

  996. 

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

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

  999. 

  1000.             const BinaryType btype(getBinaryTypeFromFile(stateSave.binary));

  1001.             const PluginType ptype(getPluginTypeFromString(stateSave.type));

  1002. 

  1003.             if (CarlaString(stateSave.label).endsWith(kUse16OutsSuffix))

  1004.             {

  1005.                 if (ptype == PLUGIN_GIG || ptype == PLUGIN_SF2)

  1006.                     extraStuff = "true";

  1007.             }

  1008. 

  1009.             // TODO - proper find&load plugins

  1010. 

  1011.             if (addPlugin(btype, ptype, stateSave.binary, stateSave.name, stateSave.label, stateSave.uniqueId, extraStuff))

  1012.             {

  1013.                 if (CarlaPlugin* const plugin = getPlugin(pData->curPluginCount-1))

  1014.                     plugin->loadStateSave(stateSave);

  1015.             }

  1016.             else

  1017.                 carla_stderr2("Failed to load a plugin, error was:\n%s", getLastError());

  1018.         }

  1019. 

  1020.         if (isPreset)

  1021.             return true;

  1022.     }

  1023. 

  1024. #ifndef BUILD_BRIDGE

  1025.     callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  1026. 

  1027.     // if we're running inside some session-manager, let them handle the connections

  1028.     if (pData->options.processMode != ENGINE_PROCESS_MODE_PATCHBAY)

  1029.     {

  1030.         if (std::getenv("CARLA_DONT_MANAGE_CONNECTIONS") != nullptr || std::getenv("LADISH_APP_NAME") != nullptr || std::getenv("NSM_URL") != nullptr)

  1031.             return true;

  1032.     }

  1033. 

  1034.     // now handle connections

  1035.     for (XmlElement* elem = xmlElement->getFirstChildElement(); elem != nullptr; elem = elem->getNextElement())

  1036.     {

  1037.         const String& tagName(elem->getTagName());

  1038. 

  1039.         if (tagName.equalsIgnoreCase("patchbay"))

  1040.         {

  1041.             CarlaString sourcePort, targetPort;

  1042. 

  1043.             for (XmlElement* patchElem = elem->getFirstChildElement(); patchElem != nullptr; patchElem = patchElem->getNextElement())

  1044.             {

  1045.                 const String& patchTag(patchElem->getTagName());

  1046. 

  1047.                 sourcePort.clear();

  1048.                 targetPort.clear();

  1049. 

  1050.                 if (! patchTag.equalsIgnoreCase("connection"))

  1051.                     continue;

  1052. 

  1053.                 for (XmlElement* connElem = patchElem->getFirstChildElement(); connElem != nullptr; connElem = connElem->getNextElement())

  1054.                 {

  1055.                     const String& tag(connElem->getTagName());

  1056.                     const String  text(connElem->getAllSubText().trim());

  1057. 

  1058.                     if (tag.equalsIgnoreCase("source"))

  1059.                         sourcePort = text.toRawUTF8();

  1060.                     else if (tag.equalsIgnoreCase("target"))

  1061.                         targetPort = text.toRawUTF8();

  1062.                 }

  1063. 

  1064.                 if (sourcePort.isNotEmpty() && targetPort.isNotEmpty())

  1065.                     restorePatchbayConnection(sourcePort, targetPort);

  1066.             }

  1067.             break;

  1068.         }

  1069.     }

  1070. #endif

  1071. 

  1072.     return true;

  1073. }

  1074. 

  1075. bool CarlaEngine::saveProject(const char* const filename)

  1076. {

  1077.     CARLA_SAFE_ASSERT_RETURN_ERR(filename != nullptr && filename[0] != '\0', "Invalid filename");

  1078.     carla_debug("CarlaEngine::saveProject(\"%s\")", filename);

  1079. 

  1080.     MemoryOutputStream out;

  1081.     out << "<?xml version='1.0' encoding='UTF-8'?>\n";

  1082.     out << "<!DOCTYPE CARLA-PROJECT>\n";

  1083.     out << "<CARLA-PROJECT VERSION='2.0'>\n";

  1084. 

  1085.     bool firstPlugin = true;

  1086.     char strBuf[STR_MAX+1];

  1087. 

  1088.     for (uint i=0; i < pData->curPluginCount; ++i)

  1089.     {

  1090.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1091. 

  1092.         if (plugin != nullptr && plugin->isEnabled())

  1093.         {

  1094.             if (! firstPlugin)

  1095.                 out << "\n";

  1096. 

  1097.             strBuf[0] = '\0';

  1098. 

  1099.             plugin->getRealName(strBuf);

  1100. 

  1101.             //if (strBuf[0] != '\0')

  1102.             //    out << QString(" <!-- %1 -->\n").arg(xmlSafeString(strBuf, true));

  1103. 

  1104.             out << " <Plugin>\n";

  1105.             out << plugin->getStateSave().toString();

  1106.             out << " </Plugin>\n";

  1107. 

  1108.             firstPlugin = false;

  1109.         }

  1110.     }

  1111. 

  1112. #ifndef BUILD_BRIDGE

  1113.     bool saveConnections = true;

  1114. 

  1115.     // if we're running inside some session-manager, let them handle the connections

  1116.     if (pData->options.processMode != ENGINE_PROCESS_MODE_PATCHBAY)

  1117.     {

  1118.         if (std::getenv("CARLA_DONT_MANAGE_CONNECTIONS") != nullptr || std::getenv("LADISH_APP_NAME") != nullptr || std::getenv("NSM_URL") != nullptr)

  1119.             saveConnections = false;

  1120.     }

  1121. 

  1122.     if (saveConnections)

  1123.     {

  1124.         if (const char* const* patchbayConns = getPatchbayConnections())

  1125.         {

  1126.             if (! firstPlugin)

  1127.                 out << "\n";

  1128. 

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

  1130. 

  1131.             for (int i=0; patchbayConns[i] != nullptr && patchbayConns[i+1] != nullptr; ++i, ++i )

  1132.             {

  1133.                 const char* const connSource(patchbayConns[i]);

  1134.                 const char* const connTarget(patchbayConns[i+1]);

  1135. 

  1136.                 CARLA_SAFE_ASSERT_CONTINUE(connSource != nullptr && connSource[0] != '\0');

  1137.                 CARLA_SAFE_ASSERT_CONTINUE(connTarget != nullptr && connTarget[0] != '\0');

  1138. 

  1139.                 out << "  <Connection>\n";

  1140.                 out << "   <Source>" << connSource << "</Source>\n";

  1141.                 out << "   <Target>" << connTarget << "</Target>\n";

  1142.                 out << "  </Connection>\n";

  1143. 

  1144.                 delete[] connSource;

  1145.                 delete[] connTarget;

  1146.             }

  1147. 

  1148.             out << " </Patchbay>\n";

  1149.         }

  1150.     }

  1151. #endif

  1152. 

  1153.     out << "</CARLA-PROJECT>\n";

  1154. 

  1155.     File file(filename);

  1156. 

  1157.     if (file.replaceWithData(out.getData(), out.getDataSize()))

  1158.         return true;

  1159. 

  1160.     setLastError("Failed to write file");

  1161.     return false;

  1162. }

  1163. 

  1164. // -----------------------------------------------------------------------

  1165. // Information (base)

  1166. 

  1167. uint CarlaEngine::getHints() const noexcept

  1168. {

  1169.     return pData->hints;

  1170. }

  1171. 

  1172. uint32_t CarlaEngine::getBufferSize() const noexcept

  1173. {

  1174.     return pData->bufferSize;

  1175. }

  1176. 

  1177. double CarlaEngine::getSampleRate() const noexcept

  1178. {

  1179.     return pData->sampleRate;

  1180. }

  1181. 

  1182. const char* CarlaEngine::getName() const noexcept

  1183. {

  1184.     return pData->name;

  1185. }

  1186. 

  1187. EngineProcessMode CarlaEngine::getProccessMode() const noexcept

  1188. {

  1189.     return pData->options.processMode;

  1190. }

  1191. 

  1192. const EngineOptions& CarlaEngine::getOptions() const noexcept

  1193. {

  1194.     return pData->options;

  1195. }

  1196. 

  1197. const EngineTimeInfo& CarlaEngine::getTimeInfo() const noexcept

  1198. {

  1199.     return pData->timeInfo;

  1200. }

  1201. 

  1202. // -----------------------------------------------------------------------

  1203. // Information (peaks)

  1204. 

  1205. float CarlaEngine::getInputPeak(const uint pluginId, const bool isLeft) const noexcept

  1206. {

  1207.     CARLA_SAFE_ASSERT_RETURN(pluginId < pData->curPluginCount, 0.0f);

  1208. 

  1209.     return pData->plugins[pluginId].insPeak[isLeft ? 0 : 1];

  1210. }

  1211. 

  1212. float CarlaEngine::getOutputPeak(const uint pluginId, const bool isLeft) const noexcept

  1213. {

  1214.     CARLA_SAFE_ASSERT_RETURN(pluginId < pData->curPluginCount, 0.0f);

  1215. 

  1216.     return pData->plugins[pluginId].outsPeak[isLeft ? 0 : 1];

  1217. }

  1218. 

  1219. // -----------------------------------------------------------------------

  1220. // Callback

  1221. 

  1222. void CarlaEngine::callback(const EngineCallbackOpcode action, const uint pluginId, const int value1, const int value2, const float value3, const char* const valueStr) noexcept

  1223. {

  1224.     carla_debug("CarlaEngine::callback(%i:%s, %i, %i, %i, %f, \"%s\")", action, EngineCallbackOpcode2Str(action), pluginId, value1, value2, value3, valueStr);

  1225. 

  1226. #ifdef BUILD_BRIDGE

  1227.     if (pData->isIdling)

  1228. #else

  1229.     if (pData->isIdling && action != ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED)

  1230. #endif

  1231.     {

  1232.         carla_stdout("callback while idling (%i:%s, %i, %i, %i, %f, \"%s\")", action, EngineCallbackOpcode2Str(action), pluginId, value1, value2, value3, valueStr);

  1233.     }

  1234. 

  1235.     if (action == ENGINE_CALLBACK_IDLE)

  1236.     {

  1237.         ++pData->isIdling;

  1238.     }

  1239. #ifdef BUILD_BRIDGE

  1240.     else if (pData->oscData != nullptr)

  1241.     {

  1242.         switch (action)

  1243.         {

  1244.         case ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  1245.             CARLA_SAFE_ASSERT_BREAK(value1 >= 0);

  1246.             oscSend_bridge_parameter_value(static_cast<uint>(value1), value3);

  1247.             break;

  1248.         case ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  1249.             CARLA_SAFE_ASSERT_BREAK(value1 >= 0);

  1250.             oscSend_bridge_default_value(static_cast<uint>(value1), value3);

  1251.             break;

  1252.         case ENGINE_CALLBACK_PROGRAM_CHANGED:

  1253.             CARLA_SAFE_ASSERT_BREAK(value1 >= -1);

  1254.             oscSend_bridge_current_program(value1);

  1255.             break;

  1256.         case ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  1257.             CARLA_SAFE_ASSERT_BREAK(value1 >= -1);

  1258.             oscSend_bridge_current_midi_program(value1);

  1259.             break;

  1260.         case ENGINE_CALLBACK_UI_STATE_CHANGED:

  1261.             if (value1 != 1)

  1262.                 oscSend_bridge_configure("CarlaBridgeHideGUI", "");

  1263.             break;

  1264.         default:

  1265.             break;

  1266.         }

  1267.     }

  1268. #endif

  1269. 

  1270.     if (pData->callback != nullptr)

  1271.     {

  1272.         try {

  1273.             pData->callback(pData->callbackPtr, action, pluginId, value1, value2, value3, valueStr);

  1274.         } CARLA_SAFE_EXCEPTION("callback");

  1275.     }

  1276. 

  1277.     if (action == ENGINE_CALLBACK_IDLE)

  1278.         --pData->isIdling;

  1279. }

  1280. 

  1281. void CarlaEngine::setCallback(const EngineCallbackFunc func, void* const ptr) noexcept

  1282. {

  1283.     carla_debug("CarlaEngine::setCallback(%p, %p)", func, ptr);

  1284. 

  1285.     pData->callback    = func;

  1286.     pData->callbackPtr = ptr;

  1287. }

  1288. 

  1289. // -----------------------------------------------------------------------

  1290. // File Callback

  1291. 

  1292. const char* CarlaEngine::runFileCallback(const FileCallbackOpcode action, const bool isDir, const char* const title, const char* const filter) noexcept

  1293. {

  1294.     CARLA_SAFE_ASSERT_RETURN(title != nullptr && title[0] != '\0', nullptr);

  1295.     CARLA_SAFE_ASSERT_RETURN(filter != nullptr, nullptr);

  1296.     carla_debug("CarlaEngine::runFileCallback(%i:%s, %s, \"%s\", \"%s\")", action, FileCallbackOpcode2Str(action), bool2str(isDir), title, filter);

  1297. 

  1298.     const char* ret = nullptr;

  1299. 

  1300.     if (pData->fileCallback != nullptr)

  1301.     {

  1302.         try {

  1303.             ret = pData->fileCallback(pData->fileCallbackPtr, action, isDir, title, filter);

  1304.         } CARLA_SAFE_EXCEPTION("runFileCallback");

  1305.     }

  1306. 

  1307.     return ret;

  1308. }

  1309. 

  1310. void CarlaEngine::setFileCallback(const FileCallbackFunc func, void* const ptr) noexcept

  1311. {

  1312.     carla_debug("CarlaEngine::setFileCallback(%p, %p)", func, ptr);

  1313. 

  1314.     pData->fileCallback    = func;

  1315.     pData->fileCallbackPtr = ptr;

  1316. }

  1317. 

  1318. // -----------------------------------------------------------------------

  1319. // Transport

  1320. 

  1321. void CarlaEngine::transportPlay() noexcept

  1322. {

  1323.     pData->time.playing = true;

  1324. }

  1325. 

  1326. void CarlaEngine::transportPause() noexcept

  1327. {

  1328.     pData->time.playing = false;

  1329. }

  1330. 

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

  1332. {

  1333.     pData->time.frame = 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. void CarlaEngine::setAboutToClose() noexcept

  1350. {

  1351.     carla_debug("CarlaEngine::setAboutToClose()");

  1352. 

  1353.     pData->aboutToClose = true;

  1354. }

  1355. 

  1356. // -----------------------------------------------------------------------

  1357. // Global options

  1358. 

  1359. void CarlaEngine::setOption(const EngineOption option, const int value, const char* const valueStr) noexcept

  1360. {

  1361.     carla_debug("CarlaEngine::setOption(%i:%s, %i, \"%s\")", option, EngineOption2Str(option), value, valueStr);

  1362. 

  1363.     if (isRunning() && (option == ENGINE_OPTION_PROCESS_MODE || option == ENGINE_OPTION_AUDIO_NUM_PERIODS || option == ENGINE_OPTION_AUDIO_DEVICE))

  1364.         return carla_stderr("CarlaEngine::setOption(%i:%s, %i, \"%s\") - Cannot set this option while engine is running!", option, EngineOption2Str(option), value, valueStr);

  1365. 

  1366.     switch (option)

  1367.     {

  1368.     case ENGINE_OPTION_DEBUG:

  1369.     case ENGINE_OPTION_NSM_INIT:

  1370.         break;

  1371. 

  1372.     case ENGINE_OPTION_PROCESS_MODE:

  1373.         CARLA_SAFE_ASSERT_RETURN(value >= ENGINE_PROCESS_MODE_SINGLE_CLIENT && value <= ENGINE_PROCESS_MODE_BRIDGE,);

  1374.         pData->options.processMode = static_cast<EngineProcessMode>(value);

  1375.         break;

  1376. 

  1377.     case ENGINE_OPTION_TRANSPORT_MODE:

  1378.         CARLA_SAFE_ASSERT_RETURN(value >= ENGINE_TRANSPORT_MODE_INTERNAL && value <= ENGINE_TRANSPORT_MODE_BRIDGE,);

  1379.         pData->options.transportMode = static_cast<EngineTransportMode>(value);

  1380.         break;

  1381. 

  1382.     case ENGINE_OPTION_FORCE_STEREO:

  1383.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1384.         pData->options.forceStereo = (value != 0);

  1385.         break;

  1386. 

  1387.     case ENGINE_OPTION_PREFER_PLUGIN_BRIDGES:

  1388.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1389.         pData->options.preferPluginBridges = (value != 0);

  1390.         break;

  1391. 

  1392.     case ENGINE_OPTION_PREFER_UI_BRIDGES:

  1393.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1394.         pData->options.preferUiBridges = (value != 0);

  1395.         break;

  1396. 

  1397.     case ENGINE_OPTION_UIS_ALWAYS_ON_TOP:

  1398.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1399.         pData->options.uisAlwaysOnTop = (value != 0);

  1400.         break;

  1401. 

  1402.     case ENGINE_OPTION_MAX_PARAMETERS:

  1403.         CARLA_SAFE_ASSERT_RETURN(value >= 0,);

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

  1405.         break;

  1406. 

  1407.     case ENGINE_OPTION_UI_BRIDGES_TIMEOUT:

  1408.         CARLA_SAFE_ASSERT_RETURN(value >= 0,);

  1409.         pData->options.uiBridgesTimeout = static_cast<uint>(value);

  1410.         break;

  1411. 

  1412.     case ENGINE_OPTION_AUDIO_NUM_PERIODS:

  1413.         CARLA_SAFE_ASSERT_RETURN(value >= 2 && value <= 3,);

  1414.         pData->options.audioNumPeriods = static_cast<uint>(value);

  1415.         break;

  1416. 

  1417.     case ENGINE_OPTION_AUDIO_BUFFER_SIZE:

  1418.         CARLA_SAFE_ASSERT_RETURN(value >= 8,);

  1419.         pData->options.audioBufferSize = static_cast<uint>(value);

  1420.         break;

  1421. 

  1422.     case ENGINE_OPTION_AUDIO_SAMPLE_RATE:

  1423.         CARLA_SAFE_ASSERT_RETURN(value >= 22050,);

  1424.         pData->options.audioSampleRate = static_cast<uint>(value);

  1425.         break;

  1426. 

  1427.     case ENGINE_OPTION_AUDIO_DEVICE:

  1428.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr,);

  1429. 

  1430.         if (pData->options.audioDevice != nullptr)

  1431.             delete[] pData->options.audioDevice;

  1432. 

  1433.         pData->options.audioDevice = carla_strdup_safe(valueStr);

  1434.         break;

  1435. 

  1436.     case ENGINE_OPTION_PATH_BINARIES:

  1437.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1438. 

  1439.         if (pData->options.binaryDir != nullptr)

  1440.             delete[] pData->options.binaryDir;

  1441. 

  1442.         pData->options.binaryDir = carla_strdup_safe(valueStr);

  1443.         break;

  1444. 

  1445.     case ENGINE_OPTION_PATH_RESOURCES:

  1446.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1447. 

  1448.         if (pData->options.resourceDir != nullptr)

  1449.             delete[] pData->options.resourceDir;

  1450. 

  1451.         pData->options.resourceDir = carla_strdup_safe(valueStr);

  1452.         break;

  1453. 

  1454.     case ENGINE_OPTION_FRONTEND_WIN_ID:

  1455.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1456.         const long long winId(std::strtoll(valueStr, nullptr, 16));

  1457.         CARLA_SAFE_ASSERT_RETURN(winId >= 0,);

  1458.         pData->options.frontendWinId = static_cast<uintptr_t>(winId);

  1459.         break;

  1460.     }

  1461. }

  1462. 

  1463. // -----------------------------------------------------------------------

  1464. // OSC Stuff

  1465. 

  1466. #ifdef BUILD_BRIDGE

  1467. bool CarlaEngine::isOscBridgeRegistered() const noexcept

  1468. {

  1469.     return (pData->oscData != nullptr);

  1470. }

  1471. #else

  1472. bool CarlaEngine::isOscControlRegistered() const noexcept

  1473. {

  1474.     return pData->osc.isControlRegistered();

  1475. }

  1476. #endif

  1477. 

  1478. void CarlaEngine::idleOsc() const noexcept

  1479. {

  1480.     pData->osc.idle();

  1481. }

  1482. 

  1483. const char* CarlaEngine::getOscServerPathTCP() const noexcept

  1484. {

  1485.     return pData->osc.getServerPathTCP();

  1486. }

  1487. 

  1488. const char* CarlaEngine::getOscServerPathUDP() const noexcept

  1489. {

  1490.     return pData->osc.getServerPathUDP();

  1491. }

  1492. 

  1493. #ifdef BUILD_BRIDGE

  1494. void CarlaEngine::setOscBridgeData(CarlaOscData* const oscData) const noexcept

  1495. {

  1496.     pData->oscData = oscData;

  1497. }

  1498. #endif

  1499. 

  1500. // -----------------------------------------------------------------------

  1501. // Helper functions

  1502. 

  1503. EngineEvent* CarlaEngine::getInternalEventBuffer(const bool isInput) const noexcept

  1504. {

  1505.     return isInput ? pData->events.in : pData->events.out;

  1506. }

  1507. 

  1508. void CarlaEngine::registerEnginePlugin(const uint id, CarlaPlugin* const plugin) noexcept

  1509. {

  1510.     CARLA_SAFE_ASSERT_RETURN(id == pData->curPluginCount,);

  1511.     carla_debug("CarlaEngine::registerEnginePlugin(%i, %p)", id, plugin);

  1512. 

  1513.     pData->plugins[id].plugin = plugin;

  1514. }

  1515. 

  1516. // -----------------------------------------------------------------------

  1517. // Internal stuff

  1518. 

  1519. void CarlaEngine::bufferSizeChanged(const uint32_t newBufferSize)

  1520. {

  1521.     carla_debug("CarlaEngine::bufferSizeChanged(%i)", newBufferSize);

  1522. 

  1523. #ifndef BUILD_BRIDGE

  1524.     pData->graph.setBufferSize(newBufferSize);

  1525. #endif

  1526. 

  1527.     for (uint i=0; i < pData->curPluginCount; ++i)

  1528.     {

  1529.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1530. 

  1531.         if (plugin != nullptr && plugin->isEnabled())

  1532.             plugin->bufferSizeChanged(newBufferSize);

  1533.     }

  1534. 

  1535.     callback(ENGINE_CALLBACK_BUFFER_SIZE_CHANGED, 0, static_cast<int>(newBufferSize), 0, 0.0f, nullptr);

  1536. }

  1537. 

  1538. void CarlaEngine::sampleRateChanged(const double newSampleRate)

  1539. {

  1540.     carla_debug("CarlaEngine::sampleRateChanged(%g)", newSampleRate);

  1541. 

  1542. #ifndef BUILD_BRIDGE

  1543.     pData->graph.setSampleRate(newSampleRate);

  1544. #endif

  1545. 

  1546.     for (uint i=0; i < pData->curPluginCount; ++i)

  1547.     {

  1548.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1549. 

  1550.         if (plugin != nullptr && plugin->isEnabled())

  1551.             plugin->sampleRateChanged(newSampleRate);

  1552.     }

  1553. 

  1554.     callback(ENGINE_CALLBACK_SAMPLE_RATE_CHANGED, 0, 0, 0, static_cast<float>(newSampleRate), nullptr);

  1555. }

  1556. 

  1557. void CarlaEngine::offlineModeChanged(const bool isOfflineNow)

  1558. {

  1559.     carla_debug("CarlaEngine::offlineModeChanged(%s)", bool2str(isOfflineNow));

  1560. 

  1561. #ifndef BUILD_BRIDGE

  1562.     pData->graph.setOffline(isOfflineNow);

  1563. #endif

  1564. 

  1565.     for (uint i=0; i < pData->curPluginCount; ++i)

  1566.     {

  1567.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1568. 

  1569.         if (plugin != nullptr && plugin->isEnabled())

  1570.             plugin->offlineModeChanged(isOfflineNow);

  1571.     }

  1572. }

  1573. 

  1574. void CarlaEngine::runPendingRtEvents() noexcept

  1575. {

  1576.     pData->doNextPluginAction(true);

  1577. 

  1578.     if (pData->time.playing)

  1579.         pData->time.frame += pData->bufferSize;

  1580. 

  1581.     if (pData->options.transportMode == ENGINE_TRANSPORT_MODE_INTERNAL)

  1582.     {

  1583.         pData->timeInfo.playing = pData->time.playing;

  1584.         pData->timeInfo.frame   = pData->time.frame;

  1585.     }

  1586. }

  1587. 

  1588. void CarlaEngine::setPluginPeaks(const uint pluginId, float const inPeaks[2], float const outPeaks[2]) noexcept

  1589. {

  1590.     EnginePluginData& pluginData(pData->plugins[pluginId]);

  1591. 

  1592.     pluginData.insPeak[0]  = inPeaks[0];

  1593.     pluginData.insPeak[1]  = inPeaks[1];

  1594.     pluginData.outsPeak[0] = outPeaks[0];

  1595.     pluginData.outsPeak[1] = outPeaks[1];

  1596. }

  1597. 

  1598. // -----------------------------------------------------------------------

  1599. 

  1600. CARLA_BACKEND_END_NAMESPACE