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.
2007 Commits
16 Branches
310MB
Tree: d4a1437d0a
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from 'd4a1437d0a'
${ noResults }
Carla/source/backend/engine/CarlaEngine.cpp

1554 lines
49KB
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 "CarlaEngineUtils.hpp"

  31. #include "CarlaMathUtils.hpp"

  32. #include "CarlaStateUtils.hpp"

  33. #include "CarlaMIDI.h"

  34. 

  35. #include "jackbridge/JackBridge.hpp"

  36. #include "juce_core.h"

  37. 

  38. using juce::File;

  39. using juce::MemoryOutputStream;

  40. using juce::ScopedPointer;

  41. using juce::String;

  42. using juce::XmlDocument;

  43. using juce::XmlElement;

  44. 

  45. CARLA_BACKEND_START_NAMESPACE

  46. 

  47. // -----------------------------------------------------------------------

  48. // Carla Engine

  49. 

  50. CarlaEngine::CarlaEngine()

  51.     : pData(new ProtectedData(this))

  52. {

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

  54. }

  55. 

  56. CarlaEngine::~CarlaEngine()

  57. {

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

  59. 

  60.     delete pData;

  61. }

  62. 

  63. // -----------------------------------------------------------------------

  64. // Static calls

  65. 

  66. uint CarlaEngine::getDriverCount()

  67. {

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

  69. 

  70.     uint count = 0;

  71. 

  72.     if (jackbridge_is_ok())

  73.         count += 1;

  74. 

  75. #ifndef BUILD_BRIDGE

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

  77.     count += getJuceApiCount();

  78. # else

  79.     count += getRtAudioApiCount();

  80. # endif

  81. #endif

  82. 

  83.     return count;

  84. }

  85. 

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

  87. {

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

  89. 

  90.     uint index(index2);

  91. 

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

  93.         return "JACK";

  94. 

  95. #ifndef BUILD_BRIDGE

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

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

  98.     {

  99.         if (index < count)

  100.             return getJuceApiName(index);

  101.         index -= count;

  102.     }

  103. # else

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

  105.     {

  106.         if (index < count)

  107.             return getRtAudioApiName(index);

  108.         index -= count;

  109.     }

  110. # endif

  111. #endif

  112. 

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

  114.     return nullptr;

  115. }

  116. 

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

  118. {

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

  120. 

  121.     uint index(index2);

  122. 

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

  124.     {

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

  126.         return ret;

  127.     }

  128. 

  129. #ifndef BUILD_BRIDGE

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

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

  132.     {

  133.         if (index < count)

  134.             return getJuceApiDeviceNames(index);

  135.         index -= count;

  136.     }

  137. # else

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

  139.     {

  140.         if (index < count)

  141.             return getRtAudioApiDeviceNames(index);

  142.         index -= count;

  143.     }

  144. # endif

  145. #endif

  146. 

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

  148.     return nullptr;

  149. }

  150. 

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

  152. {

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

  154. 

  155.     uint index(index2);

  156. 

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

  158.     {

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

  160.         static EngineDriverDeviceInfo devInfo;

  161.         devInfo.hints       = ENGINE_DRIVER_DEVICE_VARIABLE_BUFFER_SIZE;

  162.         devInfo.bufferSizes = bufSizes;

  163.         devInfo.sampleRates = nullptr;

  164.         return &devInfo;

  165.     }

  166. 

  167. #ifndef BUILD_BRIDGE

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

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

  170.     {

  171.         if (index < count)

  172.             return getJuceDeviceInfo(index, deviceName);

  173.         index -= count;

  174.     }

  175. # else

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

  177.     {

  178.         if (index < count)

  179.             return getRtAudioDeviceInfo(index, deviceName);

  180.         index -= count;

  181.     }

  182. # endif

  183. #endif

  184. 

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

  186.     return nullptr;

  187. }

  188. 

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

  190. {

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

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

  193. 

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

  195.         return newJack();

  196. 

  197. #ifndef BUILD_BRIDGE

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

  199.     // -------------------------------------------------------------------

  200.     // macos

  201. 

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

  203.         return newJuce(AUDIO_API_CORE);

  204. 

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

  206.     // windows

  207. 

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

  209.         return newJuce(AUDIO_API_ASIO);

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

  211.         return newJuce(AUDIO_API_DS);

  212. #else

  213.     // -------------------------------------------------------------------

  214.     // common

  215. 

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

  217.         return newRtAudio(AUDIO_API_JACK);

  218. 

  219.     // -------------------------------------------------------------------

  220.     // linux

  221. 

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

  223.         return newRtAudio(AUDIO_API_ALSA);

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

  225.         return newRtAudio(AUDIO_API_OSS);

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

  227.         return newRtAudio(AUDIO_API_PULSE);

  228. # endif

  229. #endif

  230. 

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

  232.     return nullptr;

  233. }

  234. 

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

  236. // Constant values

  237. 

  238. uint CarlaEngine::getMaxClientNameSize() const noexcept

  239. {

  240.     return STR_MAX/2;

  241. }

  242. 

  243. uint CarlaEngine::getMaxPortNameSize() const noexcept

  244. {

  245.     return STR_MAX;

  246. }

  247. 

  248. uint CarlaEngine::getCurrentPluginCount() const noexcept

  249. {

  250.     return pData->curPluginCount;

  251. }

  252. 

  253. uint CarlaEngine::getMaxPluginNumber() const noexcept

  254. {

  255.     return pData->maxPluginNumber;

  256. }

  257. 

  258. // -----------------------------------------------------------------------

  259. // Virtual, per-engine type calls

  260. 

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

  262. {

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

  264. 

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

  266.         return false;

  267. 

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

  269.     return true;

  270. }

  271. 

  272. bool CarlaEngine::close()

  273. {

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

  275. 

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

  277.     {

  278.         pData->aboutToClose = true;

  279.         removeAllPlugins();

  280.     }

  281. 

  282. #ifndef BUILD_BRIDGE

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

  284.         oscSend_control_exit();

  285. #endif

  286. 

  287.     pData->close();

  288. 

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

  290.     return true;

  291. }

  292. 

  293. void CarlaEngine::idle() noexcept

  294. {

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

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

  297. 

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

  299.     {

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

  301. 

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

  303.         {

  304.             try {

  305.                 plugin->idle();

  306.             } CARLA_SAFE_EXCEPTION_CONTINUE("Plugin idle");

  307.         }

  308.     }

  309. 

  310.     pData->osc.idle();

  311. }

  312. 

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

  314. {

  315.     return new CarlaEngineClient(*this);

  316. }

  317. 

  318. // -----------------------------------------------------------------------

  319. // Plugin management

  320. 

  321. 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)

  322. {

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

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

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

  326.     CARLA_SAFE_ASSERT_RETURN_ERR(pData->nextAction.opcode == kEnginePostActionNull, "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.         else if (btype == BINARY_WIN32)

  416.         {

  417.             // fallback to dssi-vst

  418.             File file(filename);

  419. 

  420.             CarlaString label2(file.getFullPathName().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, "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(pData->nextAction.opcode == kEnginePostActionNull, "Invalid engine internal data");

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

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

  581. 

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

  583. 

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

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

  586. 

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

  588. 

  589. #ifndef BUILD_BRIDGE

  590.     const bool lockWait(isRunning() && pData->options.processMode != ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS);

  591.     const ScopedActionLock sal(pData, kEnginePostActionRemovePlugin, id, 0, lockWait);

  592. 

  593.     if (isOscControlRegistered())

  594.         oscSend_control_remove_plugin(id);

  595. #else

  596.     pData->plugins[0].plugin = nullptr;

  597. #endif

  598. 

  599.     delete plugin;

  600. 

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

  602.         pData->thread.startThread();

  603. 

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

  605.     return true;

  606. }

  607. 

  608. bool CarlaEngine::removeAllPlugins()

  609. {

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

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

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

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

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

  615. 

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

  617.         return true;

  618. 

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

  620. 

  621.     const bool lockWait(isRunning());

  622.     const ScopedActionLock sal(pData, kEnginePostActionZeroCount, 0, 0, lockWait);

  623. 

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

  625. 

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

  627.     {

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

  629. 

  630.         if (pluginData.plugin != nullptr)

  631.         {

  632.             delete pluginData.plugin;

  633.             pluginData.plugin = nullptr;

  634.         }

  635. 

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

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

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

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

  640. 

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

  642.     }

  643. 

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

  645.         pData->thread.startThread();

  646. 

  647.     return true;

  648. }

  649. 

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

  651. {

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

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

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

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

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

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

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

  659. 

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

  661. 

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

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

  664. 

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

  666.     {

  667.         plugin->setName(name);

  668.         return name;

  669.     }

  670. 

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

  672.     return nullptr;

  673. }

  674. 

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

  676. {

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

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

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

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

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

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

  683. 

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

  685. 

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

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

  688. 

  689.     char label[STR_MAX+1];

  690.     carla_zeroChar(label, STR_MAX+1);

  691.     plugin->getLabel(label);

  692. 

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

  694. 

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

  696.         return false;

  697. 

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

  699. 

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

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

  702. 

  703.     return true;

  704. }

  705. 

  706. bool CarlaEngine::replacePlugin(const uint id)

  707. {

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

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

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

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

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

  713. 

  714.     // might use this to reset

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

  716.     {

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

  718.         return true;

  719.     }

  720. 

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

  722. 

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

  724. 

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

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

  727. 

  728.     pData->nextPluginId = id;

  729. 

  730.     return true;

  731. }

  732. 

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

  734. {

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

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

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

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

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

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

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

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

  743. 

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

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

  746. 

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

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

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

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

  751. 

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

  753. 

  754. #ifndef BUILD_BRIDGE

  755.     const bool lockWait(isRunning() && pData->options.processMode != ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS);

  756.     const ScopedActionLock sal(pData, kEnginePostActionSwitchPlugins, idA, idB, lockWait);

  757. 

  758.     // TODO

  759.     //if (isOscControlRegistered())

  760.     //    oscSend_control_switch_plugins(idA, idB);

  761. #else

  762.     pData->plugins[0].plugin = nullptr;

  763. #endif

  764. 

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

  766.         pData->thread.startThread();

  767. 

  768.     return true;

  769. }

  770. 

  771. CarlaPlugin* CarlaEngine::getPlugin(const uint id) const

  772. {

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

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

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

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

  777. 

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

  779. }

  780. 

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

  782. {

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

  784. }

  785. 

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

  787. {

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

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

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

  791. 

  792.     CarlaString sname;

  793.     sname = name;

  794. 

  795.     if (sname.isEmpty())

  796.     {

  797.         sname = "(No name)";

  798.         return sname.dup();

  799.     }

  800. 

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

  802. 

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

  804.         return sname.dup();

  805. 

  806.     sname.truncate(maxNameSize);

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

  808. 

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

  810.     {

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

  812. 

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

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

  815.         {

  816.             if (sname != pluginName)

  817.                 continue;

  818.         }

  819. 

  820.         // Check if string has already been modified

  821.         {

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

  823. 

  824.             // 1 digit, ex: " (2)"

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

  826.             {

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

  828. 

  829.                 if (number == 9)

  830.                 {

  831.                     // next number is 10, 2 digits

  832.                     sname.truncate(len-4);

  833.                     sname += " (10)";

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

  835.                 }

  836.                 else

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

  838. 

  839.                 continue;

  840.             }

  841. 

  842.             // 2 digits, ex: " (11)"

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

  844.             {

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

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

  847. 

  848.                 if (n2 == '9')

  849.                 {

  850.                     n2 = '0';

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

  852.                 }

  853.                 else

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

  855. 

  856.                 sname[len-2] = n2;

  857.                 sname[len-3] = n3;

  858. 

  859.                 continue;

  860.             }

  861.         }

  862. 

  863.         // Modify string if not

  864.         sname += " (2)";

  865.     }

  866. 

  867.     return sname.dup();

  868. }

  869. 

  870. // -----------------------------------------------------------------------

  871. // Project management

  872. 

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

  874. {

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

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

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

  878. 

  879.     File file(filename);

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

  881. 

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

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

  884. 

  885.     // -------------------------------------------------------------------

  886. 

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

  888.         return loadProject(filename);

  889. 

  890.     // -------------------------------------------------------------------

  891. 

  892.     if (extension == "gig")

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

  894. 

  895.     if (extension == "sf2")

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

  897. 

  898.     if (extension == "sfz")

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

  900. 

  901.     // -------------------------------------------------------------------

  902. 

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

  904.     {

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

  906.         {

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

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

  909.             return true;

  910.         }

  911.         return false;

  912.     }

  913. 

  914.     // -------------------------------------------------------------------

  915. 

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

  917.     {

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

  919.         {

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

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

  922.             return true;

  923.         }

  924.         return false;

  925.     }

  926. 

  927.     // -------------------------------------------------------------------

  928.     // ZynAddSubFX

  929. 

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

  931.     {

  932. #ifdef WANT_ZYNADDSUBFX

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

  934.         {

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

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

  937.             return true;

  938.         }

  939.         return false;

  940. #else

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

  942.         return false;

  943. #endif

  944.     }

  945. 

  946.     // -------------------------------------------------------------------

  947. 

  948.     setLastError("Unknown file extension");

  949.     return false;

  950. }

  951. 

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

  953. {

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

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

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

  957. 

  958.     File file(filename);

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

  960. 

  961.     XmlDocument xml(file);

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

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

  964. 

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

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

  967. 

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

  969.     {

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

  971.         return false;

  972.     }

  973. 

  974.     // completely load file

  975.     xmlElement = xml.getDocumentElement(false);

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

  977. 

  978.     // handle plugins first

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

  980.     {

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

  982. 

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

  984.         {

  985.             StateSave stateSave;

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

  987. 

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

  989. 

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

  991. 

  992.             const void* extraStuff = nullptr;

  993. 

  994.             // check if using GIG, SF2 or SFZ 16outs

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

  996. 

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

  998. 

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

  1000.             {

  1001.                 if (ptype == PLUGIN_GIG || ptype == PLUGIN_SF2)

  1002.                     extraStuff = "true";

  1003.             }

  1004. 

  1005.             // TODO - proper find&load plugins

  1006. 

  1007.             if (addPlugin(ptype, stateSave.binary, stateSave.name, stateSave.label, stateSave.uniqueId, extraStuff))

  1008.             {

  1009.                 if (CarlaPlugin* const plugin = getPlugin(pData->curPluginCount-1))

  1010.                     plugin->loadStateSave(stateSave);

  1011.             }

  1012.             else

  1013.                 carla_stderr2("Failed to load a plugin, error was:%s\n", getLastError());

  1014.         }

  1015. 

  1016.         if (isPreset)

  1017.             return true;

  1018.     }

  1019. 

  1020. #ifndef BUILD_BRIDGE

  1021.     callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  1022. 

  1023.     // if we're running inside some session-manager, let them handle the connections

  1024.     if (pData->options.processMode != ENGINE_PROCESS_MODE_PATCHBAY)

  1025.     {

  1026.         if (std::getenv("CARLA_DONT_MANAGE_CONNECTIONS") != nullptr || std::getenv("LADISH_APP_NAME") != nullptr || std::getenv("NSM_URL") != nullptr)

  1027.             return true;

  1028.     }

  1029. 

  1030.     // now handle connections

  1031.     for (XmlElement* elem = xmlElement->getFirstChildElement(); elem != nullptr; elem = elem->getNextElement())

  1032.     {

  1033.         const String& tagName(elem->getTagName());

  1034. 

  1035.         if (tagName.equalsIgnoreCase("patchbay"))

  1036.         {

  1037.             CarlaString sourcePort, targetPort;

  1038. 

  1039.             for (XmlElement* patchElem = elem->getFirstChildElement(); patchElem != nullptr; patchElem = patchElem->getNextElement())

  1040.             {

  1041.                 const String& patchTag(patchElem->getTagName());

  1042. 

  1043.                 sourcePort.clear();

  1044.                 targetPort.clear();

  1045. 

  1046.                 if (! patchTag.equalsIgnoreCase("connection"))

  1047.                     continue;

  1048. 

  1049.                 for (XmlElement* connElem = patchElem->getFirstChildElement(); connElem != nullptr; connElem = connElem->getNextElement())

  1050.                 {

  1051.                     const String& tag(connElem->getTagName());

  1052.                     const String  text(connElem->getAllSubText().trim());

  1053. 

  1054.                     if (tag.equalsIgnoreCase("source"))

  1055.                         sourcePort = text.toRawUTF8();

  1056.                     else if (tag.equalsIgnoreCase("target"))

  1057.                         targetPort = text.toRawUTF8();

  1058.                 }

  1059. 

  1060.                 if (sourcePort.isNotEmpty() && targetPort.isNotEmpty())

  1061.                     restorePatchbayConnection(sourcePort, targetPort);

  1062.             }

  1063.             break;

  1064.         }

  1065.     }

  1066. #endif

  1067. 

  1068.     return true;

  1069. }

  1070. 

  1071. bool CarlaEngine::saveProject(const char* const filename)

  1072. {

  1073.     CARLA_SAFE_ASSERT_RETURN_ERR(filename != nullptr && filename[0] != '\0', "Invalid filename");

  1074.     carla_debug("CarlaEngine::saveProject(\"%s\")", filename);

  1075. 

  1076.     MemoryOutputStream out;

  1077.     out << "<?xml version='1.0' encoding='UTF-8'?>\n";

  1078.     out << "<!DOCTYPE CARLA-PROJECT>\n";

  1079.     out << "<CARLA-PROJECT VERSION='2.0'>\n";

  1080. 

  1081.     bool firstPlugin = true;

  1082.     char strBuf[STR_MAX+1];

  1083. 

  1084.     for (uint i=0; i < pData->curPluginCount; ++i)

  1085.     {

  1086.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1087. 

  1088.         if (plugin != nullptr && plugin->isEnabled())

  1089.         {

  1090.             if (! firstPlugin)

  1091.                 out << "\n";

  1092. 

  1093.             strBuf[0] = '\0';

  1094. 

  1095.             plugin->getRealName(strBuf);

  1096. 

  1097.             //if (strBuf[0] != '\0')

  1098.             //    out << QString(" <!-- %1 -->\n").arg(xmlSafeString(strBuf, true));

  1099. 

  1100.             out << " <Plugin>\n";

  1101.             out << plugin->getStateSave().toString();

  1102.             out << " </Plugin>\n";

  1103. 

  1104.             firstPlugin = false;

  1105.         }

  1106.     }

  1107. 

  1108. #ifndef BUILD_BRIDGE

  1109.     // if we're running inside some session-manager, let them handle the connections

  1110.     if (pData->options.processMode != ENGINE_PROCESS_MODE_PATCHBAY)

  1111.     {

  1112.         if (std::getenv("CARLA_DONT_MANAGE_CONNECTIONS") != nullptr || std::getenv("LADISH_APP_NAME") != nullptr || std::getenv("NSM_URL") != nullptr)

  1113.             return true;

  1114.     }

  1115. 

  1116.     if (const char* const* patchbayConns = getPatchbayConnections())

  1117.     {

  1118.         if (! firstPlugin)

  1119.             out << "\n";

  1120. 

  1121.         out << " <Patchbay>\n";

  1122. 

  1123.         for (int i=0; patchbayConns[i] != nullptr && patchbayConns[i+1] != nullptr; ++i, ++i )

  1124.         {

  1125.             const char* const connSource(patchbayConns[i]);

  1126.             const char* const connTarget(patchbayConns[i+1]);

  1127. 

  1128.             CARLA_SAFE_ASSERT_CONTINUE(connSource != nullptr && connSource[0] != '\0');

  1129.             CARLA_SAFE_ASSERT_CONTINUE(connTarget != nullptr && connTarget[0] != '\0');

  1130. 

  1131.             out << "  <Connection>\n";

  1132.             out << "   <Source>" << connSource << "</Source>\n";

  1133.             out << "   <Target>" << connTarget << "</Target>\n";

  1134.             out << "  </Connection>\n";

  1135. 

  1136.             delete[] connSource;

  1137.             delete[] connTarget;

  1138.         }

  1139. 

  1140.         out << " </Patchbay>\n";

  1141.     }

  1142. #endif

  1143. 

  1144.     out << "</CARLA-PROJECT>\n";

  1145. 

  1146.     File file(filename);

  1147. 

  1148.     if (file.replaceWithData(out.getData(), out.getDataSize()))

  1149.         return true;

  1150. 

  1151.     setLastError("Failed to write file");

  1152.     return false;

  1153. }

  1154. 

  1155. // -----------------------------------------------------------------------

  1156. // Information (base)

  1157. 

  1158. uint CarlaEngine::getHints() const noexcept

  1159. {

  1160.     return pData->hints;

  1161. }

  1162. 

  1163. uint32_t CarlaEngine::getBufferSize() const noexcept

  1164. {

  1165.     return pData->bufferSize;

  1166. }

  1167. 

  1168. double CarlaEngine::getSampleRate() const noexcept

  1169. {

  1170.     return pData->sampleRate;

  1171. }

  1172. 

  1173. const char* CarlaEngine::getName() const noexcept

  1174. {

  1175.     return pData->name;

  1176. }

  1177. 

  1178. EngineProcessMode CarlaEngine::getProccessMode() const noexcept

  1179. {

  1180.     return pData->options.processMode;

  1181. }

  1182. 

  1183. const EngineOptions& CarlaEngine::getOptions() const noexcept

  1184. {

  1185.     return pData->options;

  1186. }

  1187. 

  1188. const EngineTimeInfo& CarlaEngine::getTimeInfo() const noexcept

  1189. {

  1190.     return pData->timeInfo;

  1191. }

  1192. 

  1193. // -----------------------------------------------------------------------

  1194. // Information (peaks)

  1195. 

  1196. float CarlaEngine::getInputPeak(const uint pluginId, const bool isLeft) const noexcept

  1197. {

  1198.     CARLA_SAFE_ASSERT_RETURN(pluginId < pData->curPluginCount, 0.0f);

  1199. 

  1200.     return pData->plugins[pluginId].insPeak[isLeft ? 0 : 1];

  1201. }

  1202. 

  1203. float CarlaEngine::getOutputPeak(const uint pluginId, const bool isLeft) const noexcept

  1204. {

  1205.     CARLA_SAFE_ASSERT_RETURN(pluginId < pData->curPluginCount, 0.0f);

  1206. 

  1207.     return pData->plugins[pluginId].outsPeak[isLeft ? 0 : 1];

  1208. }

  1209. 

  1210. // -----------------------------------------------------------------------

  1211. // Callback

  1212. 

  1213. void CarlaEngine::callback(const EngineCallbackOpcode action, const uint pluginId, const int value1, const int value2, const float value3, const char* const valueStr) noexcept

  1214. {

  1215.     carla_debug("CarlaEngine::callback(%i:%s, %i, %i, %i, %f, \"%s\")", action, EngineCallbackOpcode2Str(action), pluginId, value1, value2, value3, valueStr);

  1216. 

  1217.     if (pData->isIdling && action != ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED)

  1218.         carla_stdout("callback while idling (%i:%s, %i, %i, %i, %f, \"%s\")", action, EngineCallbackOpcode2Str(action), pluginId, value1, value2, value3, valueStr);

  1219. 

  1220.     if (action == ENGINE_CALLBACK_IDLE)

  1221.         pData->isIdling = true;

  1222. 

  1223.     if (pData->callback != nullptr)

  1224.     {

  1225.         try {

  1226.             pData->callback(pData->callbackPtr, action, pluginId, value1, value2, value3, valueStr);

  1227.         } catch(...) {}

  1228.     }

  1229. 

  1230.     if (action == ENGINE_CALLBACK_IDLE)

  1231.         pData->isIdling = false;

  1232. }

  1233. 

  1234. void CarlaEngine::setCallback(const EngineCallbackFunc func, void* const ptr) noexcept

  1235. {

  1236.     carla_debug("CarlaEngine::setCallback(%p, %p)", func, ptr);

  1237. 

  1238.     pData->callback    = func;

  1239.     pData->callbackPtr = ptr;

  1240. }

  1241. 

  1242. // -----------------------------------------------------------------------

  1243. // File Callback

  1244. 

  1245. const char* CarlaEngine::runFileCallback(const FileCallbackOpcode action, const bool isDir, const char* const title, const char* const filter) noexcept

  1246. {

  1247.     CARLA_SAFE_ASSERT_RETURN(title != nullptr && title[0] != '\0', nullptr);

  1248.     CARLA_SAFE_ASSERT_RETURN(filter != nullptr, nullptr);

  1249.     carla_debug("CarlaEngine::runFileCallback(%i:%s, %s, \"%s\", \"%s\")", action, FileCallbackOpcode2Str(action), bool2str(isDir), title, filter);

  1250. 

  1251.     const char* ret = nullptr;

  1252. 

  1253.     if (pData->fileCallback != nullptr)

  1254.     {

  1255.         try {

  1256.             ret = pData->fileCallback(pData->fileCallbackPtr, action, isDir, title, filter);

  1257.         } catch(...) {}

  1258.     }

  1259. 

  1260.     return ret;

  1261. }

  1262. 

  1263. void CarlaEngine::setFileCallback(const FileCallbackFunc func, void* const ptr) noexcept

  1264. {

  1265.     carla_debug("CarlaEngine::setFileCallback(%p, %p)", func, ptr);

  1266. 

  1267.     pData->fileCallback    = func;

  1268.     pData->fileCallbackPtr = ptr;

  1269. }

  1270. 

  1271. // -----------------------------------------------------------------------

  1272. // Transport

  1273. 

  1274. void CarlaEngine::transportPlay() noexcept

  1275. {

  1276.     pData->time.playing = true;

  1277. }

  1278. 

  1279. void CarlaEngine::transportPause() noexcept

  1280. {

  1281.     pData->time.playing = false;

  1282. }

  1283. 

  1284. void CarlaEngine::transportRelocate(const uint64_t frame) noexcept

  1285. {

  1286.     pData->time.frame = frame;

  1287. }

  1288. 

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

  1290. // Error handling

  1291. 

  1292. const char* CarlaEngine::getLastError() const noexcept

  1293. {

  1294.     return pData->lastError;

  1295. }

  1296. 

  1297. void CarlaEngine::setLastError(const char* const error) const noexcept

  1298. {

  1299.     pData->lastError = error;

  1300. }

  1301. 

  1302. void CarlaEngine::setAboutToClose() noexcept

  1303. {

  1304.     carla_debug("CarlaEngine::setAboutToClose()");

  1305. 

  1306.     pData->aboutToClose = true;

  1307. }

  1308. 

  1309. // -----------------------------------------------------------------------

  1310. // Global options

  1311. 

  1312. void CarlaEngine::setOption(const EngineOption option, const int value, const char* const valueStr)

  1313. {

  1314.     carla_debug("CarlaEngine::setOption(%i:%s, %i, \"%s\")", option, EngineOption2Str(option), value, valueStr);

  1315. 

  1316.     if (isRunning() && (option == ENGINE_OPTION_PROCESS_MODE || option == ENGINE_OPTION_AUDIO_NUM_PERIODS || option == ENGINE_OPTION_AUDIO_DEVICE))

  1317.         return carla_stderr("CarlaEngine::setOption(%i:%s, %i, \"%s\") - Cannot set this option while engine is running!", option, EngineOption2Str(option), value, valueStr);

  1318. 

  1319.     switch (option)

  1320.     {

  1321.     case ENGINE_OPTION_DEBUG:

  1322.     case ENGINE_OPTION_NSM_INIT:

  1323.         break;

  1324. 

  1325.     case ENGINE_OPTION_PROCESS_MODE:

  1326.         CARLA_SAFE_ASSERT_RETURN(value >= ENGINE_PROCESS_MODE_SINGLE_CLIENT && value <= ENGINE_PROCESS_MODE_BRIDGE,);

  1327.         pData->options.processMode = static_cast<EngineProcessMode>(value);

  1328.         break;

  1329. 

  1330.     case ENGINE_OPTION_TRANSPORT_MODE:

  1331.         CARLA_SAFE_ASSERT_RETURN(value >= ENGINE_TRANSPORT_MODE_INTERNAL && value <= ENGINE_TRANSPORT_MODE_BRIDGE,);

  1332.         pData->options.transportMode = static_cast<EngineTransportMode>(value);

  1333.         break;

  1334. 

  1335.     case ENGINE_OPTION_FORCE_STEREO:

  1336.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1337.         pData->options.forceStereo = (value != 0);

  1338.         break;

  1339. 

  1340.     case ENGINE_OPTION_PREFER_PLUGIN_BRIDGES:

  1341.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1342.         pData->options.preferPluginBridges = (value != 0);

  1343.         break;

  1344. 

  1345.     case ENGINE_OPTION_PREFER_UI_BRIDGES:

  1346.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1347.         pData->options.preferUiBridges = (value != 0);

  1348.         break;

  1349. 

  1350.     case ENGINE_OPTION_UIS_ALWAYS_ON_TOP:

  1351.         CARLA_SAFE_ASSERT_RETURN(value == 0 || value == 1,);

  1352.         pData->options.uisAlwaysOnTop = (value != 0);

  1353.         break;

  1354. 

  1355.     case ENGINE_OPTION_MAX_PARAMETERS:

  1356.         CARLA_SAFE_ASSERT_RETURN(value >= 0,);

  1357.         pData->options.maxParameters = static_cast<uint>(value);

  1358.         break;

  1359. 

  1360.     case ENGINE_OPTION_UI_BRIDGES_TIMEOUT:

  1361.         CARLA_SAFE_ASSERT_RETURN(value >= 0,);

  1362.         pData->options.uiBridgesTimeout = static_cast<uint>(value);

  1363.         break;

  1364. 

  1365.     case ENGINE_OPTION_AUDIO_NUM_PERIODS:

  1366.         CARLA_SAFE_ASSERT_RETURN(value >= 2 && value <= 3,);

  1367.         pData->options.audioNumPeriods = static_cast<uint>(value);

  1368.         break;

  1369. 

  1370.     case ENGINE_OPTION_AUDIO_BUFFER_SIZE:

  1371.         CARLA_SAFE_ASSERT_RETURN(value >= 8,);

  1372.         pData->options.audioBufferSize = static_cast<uint>(value);

  1373.         break;

  1374. 

  1375.     case ENGINE_OPTION_AUDIO_SAMPLE_RATE:

  1376.         CARLA_SAFE_ASSERT_RETURN(value >= 22050,);

  1377.         pData->options.audioSampleRate = static_cast<uint>(value);

  1378.         break;

  1379. 

  1380.     case ENGINE_OPTION_AUDIO_DEVICE:

  1381.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr,);

  1382. 

  1383.         if (pData->options.audioDevice != nullptr)

  1384.             delete[] pData->options.audioDevice;

  1385. 

  1386.         pData->options.audioDevice = carla_strdup(valueStr);

  1387.         break;

  1388. 

  1389.     case ENGINE_OPTION_PATH_BINARIES:

  1390.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1391. 

  1392.         if (pData->options.binaryDir != nullptr)

  1393.             delete[] pData->options.binaryDir;

  1394. 

  1395.         pData->options.binaryDir = carla_strdup(valueStr);

  1396.         break;

  1397. 

  1398.     case ENGINE_OPTION_PATH_RESOURCES:

  1399.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1400. 

  1401.         if (pData->options.resourceDir != nullptr)

  1402.             delete[] pData->options.resourceDir;

  1403. 

  1404.         pData->options.resourceDir = carla_strdup(valueStr);

  1405.         break;

  1406. 

  1407.     case ENGINE_OPTION_FRONTEND_WIN_ID:

  1408.         CARLA_SAFE_ASSERT_RETURN(valueStr != nullptr && valueStr[0] != '\0',);

  1409.         const long long winId(std::strtoll(valueStr, nullptr, 16));

  1410.         CARLA_SAFE_ASSERT_RETURN(winId >= 0,);

  1411.         pData->options.frontendWinId = static_cast<uintptr_t>(winId);

  1412.         break;

  1413.     }

  1414. }

  1415. 

  1416. // -----------------------------------------------------------------------

  1417. // OSC Stuff

  1418. 

  1419. #ifdef BUILD_BRIDGE

  1420. bool CarlaEngine::isOscBridgeRegistered() const noexcept

  1421. {

  1422.     return (pData->oscData != nullptr);

  1423. }

  1424. #else

  1425. bool CarlaEngine::isOscControlRegistered() const noexcept

  1426. {

  1427.     return pData->osc.isControlRegistered();

  1428. }

  1429. #endif

  1430. 

  1431. void CarlaEngine::idleOsc() const noexcept

  1432. {

  1433.     pData->osc.idle();

  1434. }

  1435. 

  1436. const char* CarlaEngine::getOscServerPathTCP() const noexcept

  1437. {

  1438.     return pData->osc.getServerPathTCP();

  1439. }

  1440. 

  1441. const char* CarlaEngine::getOscServerPathUDP() const noexcept

  1442. {

  1443.     return pData->osc.getServerPathUDP();

  1444. }

  1445. 

  1446. #ifdef BUILD_BRIDGE

  1447. void CarlaEngine::setOscBridgeData(const CarlaOscData* const oscData) const noexcept

  1448. {

  1449.     pData->oscData = oscData;

  1450. }

  1451. #endif

  1452. 

  1453. // -----------------------------------------------------------------------

  1454. // Helper functions

  1455. 

  1456. EngineEvent* CarlaEngine::getInternalEventBuffer(const bool isInput) const noexcept

  1457. {

  1458.     return isInput ? pData->events.in : pData->events.out;

  1459. }

  1460. 

  1461. void CarlaEngine::registerEnginePlugin(const uint id, CarlaPlugin* const plugin) noexcept

  1462. {

  1463.     CARLA_SAFE_ASSERT_RETURN(id == pData->curPluginCount,);

  1464.     carla_debug("CarlaEngine::registerEnginePlugin(%i, %p)", id, plugin);

  1465. 

  1466.     pData->plugins[id].plugin = plugin;

  1467. }

  1468. 

  1469. // -----------------------------------------------------------------------

  1470. // Internal stuff

  1471. 

  1472. void CarlaEngine::bufferSizeChanged(const uint32_t newBufferSize)

  1473. {

  1474.     carla_debug("CarlaEngine::bufferSizeChanged(%i)", newBufferSize);

  1475. 

  1476. #ifndef BUILD_BRIDGE

  1477.     pData->graph.setBufferSize(newBufferSize);

  1478. #endif

  1479. 

  1480.     for (uint i=0; i < pData->curPluginCount; ++i)

  1481.     {

  1482.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1483. 

  1484.         if (plugin != nullptr && plugin->isEnabled())

  1485.             plugin->bufferSizeChanged(newBufferSize);

  1486.     }

  1487. 

  1488.     callback(ENGINE_CALLBACK_BUFFER_SIZE_CHANGED, 0, static_cast<int>(newBufferSize), 0, 0.0f, nullptr);

  1489. }

  1490. 

  1491. void CarlaEngine::sampleRateChanged(const double newSampleRate)

  1492. {

  1493.     carla_debug("CarlaEngine::sampleRateChanged(%g)", newSampleRate);

  1494. 

  1495. #ifndef BUILD_BRIDGE

  1496.     pData->graph.setSampleRate(newSampleRate);

  1497. #endif

  1498. 

  1499.     for (uint i=0; i < pData->curPluginCount; ++i)

  1500.     {

  1501.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1502. 

  1503.         if (plugin != nullptr && plugin->isEnabled())

  1504.             plugin->sampleRateChanged(newSampleRate);

  1505.     }

  1506. 

  1507.     callback(ENGINE_CALLBACK_SAMPLE_RATE_CHANGED, 0, 0, 0, static_cast<float>(newSampleRate), nullptr);

  1508. }

  1509. 

  1510. void CarlaEngine::offlineModeChanged(const bool isOfflineNow)

  1511. {

  1512.     carla_debug("CarlaEngine::offlineModeChanged(%s)", bool2str(isOfflineNow));

  1513. 

  1514. #ifndef BUILD_BRIDGE

  1515.     pData->graph.setOffline(isOfflineNow);

  1516. #endif

  1517. 

  1518.     for (uint i=0; i < pData->curPluginCount; ++i)

  1519.     {

  1520.         CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1521. 

  1522.         if (plugin != nullptr && plugin->isEnabled())

  1523.             plugin->offlineModeChanged(isOfflineNow);

  1524.     }

  1525. }

  1526. 

  1527. void CarlaEngine::runPendingRtEvents() noexcept

  1528. {

  1529.     pData->doNextPluginAction(true);

  1530. 

  1531.     if (pData->time.playing)

  1532.         pData->time.frame += pData->bufferSize;

  1533. 

  1534.     if (pData->options.transportMode == ENGINE_TRANSPORT_MODE_INTERNAL)

  1535.     {

  1536.         pData->timeInfo.playing = pData->time.playing;

  1537.         pData->timeInfo.frame   = pData->time.frame;

  1538.     }

  1539. }

  1540. 

  1541. void CarlaEngine::setPluginPeaks(const uint pluginId, float const inPeaks[2], float const outPeaks[2]) noexcept

  1542. {

  1543.     EnginePluginData& pluginData(pData->plugins[pluginId]);

  1544. 

  1545.     pluginData.insPeak[0]  = inPeaks[0];

  1546.     pluginData.insPeak[1]  = inPeaks[1];

  1547.     pluginData.outsPeak[0] = outPeaks[0];

  1548.     pluginData.outsPeak[1] = outPeaks[1];

  1549. }

  1550. 

  1551. // -----------------------------------------------------------------------

  1552. 

  1553. CARLA_BACKEND_END_NAMESPACE