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Carla/source/backend/plugin/LadspaPlugin.cpp

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  1. /*

  2.  * Carla LADSPA Plugin

  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. #include "CarlaPluginInternal.hpp"

  19. #include "CarlaEngine.hpp"

  20. 

  21. #include "CarlaLadspaUtils.hpp"

  22. #include "CarlaMathUtils.hpp"

  23. 

  24. CARLA_BACKEND_START_NAMESPACE

  25. 

  26. // -----------------------------------------------------

  27. 

  28. class LadspaPlugin : public CarlaPlugin

  29. {

  30. public:

  31.     LadspaPlugin(CarlaEngine* const engine, const uint id) noexcept

  32.         : CarlaPlugin(engine, id),

  33.           fHandle(nullptr),

  34.           fHandle2(nullptr),

  35.           fDescriptor(nullptr),

  36.           fRdfDescriptor(nullptr),

  37.           fAudioInBuffers(nullptr),

  38.           fAudioOutBuffers(nullptr),

  39.           fParamBuffers(nullptr),

  40.           fLatencyChanged(false),

  41.           fLatencyIndex(-1),

  42.           leakDetector_LadspaPlugin()

  43.     {

  44.         carla_debug("LadspaPlugin::LadspaPlugin(%p, %i)", engine, id);

  45.     }

  46. 

  47.     ~LadspaPlugin() noexcept override

  48.     {

  49.         carla_debug("LadspaPlugin::~LadspaPlugin()");

  50. 

  51.         pData->singleMutex.lock();

  52.         pData->masterMutex.lock();

  53. 

  54.         if (pData->client != nullptr && pData->client->isActive())

  55.             pData->client->deactivate();

  56. 

  57.         if (pData->active)

  58.         {

  59.             deactivate();

  60.             pData->active = false;

  61.         }

  62. 

  63.         if (fDescriptor != nullptr)

  64.         {

  65.             if (fDescriptor->cleanup != nullptr)

  66.             {

  67.                 if (fHandle != nullptr)

  68.                 {

  69.                     try {

  70.                         fDescriptor->cleanup(fHandle);

  71.                     } CARLA_SAFE_EXCEPTION("LADSPA cleanup");

  72.                 }

  73. 

  74.                 if (fHandle2 != nullptr)

  75.                 {

  76.                     try {

  77.                         fDescriptor->cleanup(fHandle2);

  78.                     } CARLA_SAFE_EXCEPTION("LADSPA cleanup #2");

  79.                 }

  80.             }

  81. 

  82.             fHandle     = nullptr;

  83.             fHandle2    = nullptr;

  84.             fDescriptor = nullptr;

  85.         }

  86. 

  87.         if (fRdfDescriptor != nullptr)

  88.         {

  89.             delete fRdfDescriptor;

  90.             fRdfDescriptor = nullptr;

  91.         }

  92. 

  93.         clearBuffers();

  94.     }

  95. 

  96.     // -------------------------------------------------------------------

  97.     // Information (base)

  98. 

  99.     PluginType getType() const noexcept override

  100.     {

  101.         return PLUGIN_LADSPA;

  102.     }

  103. 

  104.     PluginCategory getCategory() const noexcept override

  105.     {

  106.         if (fRdfDescriptor != nullptr)

  107.         {

  108.             const LADSPA_PluginType category(fRdfDescriptor->Type);

  109. 

  110.             // Specific Types

  111.             if (category & (LADSPA_PLUGIN_DELAY|LADSPA_PLUGIN_REVERB))

  112.                 return PLUGIN_CATEGORY_DELAY;

  113.             if (category & (LADSPA_PLUGIN_PHASER|LADSPA_PLUGIN_FLANGER|LADSPA_PLUGIN_CHORUS))

  114.                 return PLUGIN_CATEGORY_MODULATOR;

  115.             if (category & (LADSPA_PLUGIN_AMPLIFIER))

  116.                 return PLUGIN_CATEGORY_DYNAMICS;

  117.             if (category & (LADSPA_PLUGIN_UTILITY|LADSPA_PLUGIN_SPECTRAL|LADSPA_PLUGIN_FREQUENCY_METER))

  118.                 return PLUGIN_CATEGORY_UTILITY;

  119. 

  120.             // Pre-set LADSPA Types

  121.             if (LADSPA_IS_PLUGIN_DYNAMICS(category))

  122.                 return PLUGIN_CATEGORY_DYNAMICS;

  123.             if (LADSPA_IS_PLUGIN_AMPLITUDE(category))

  124.                 return PLUGIN_CATEGORY_MODULATOR;

  125.             if (LADSPA_IS_PLUGIN_EQ(category))

  126.                 return PLUGIN_CATEGORY_EQ;

  127.             if (LADSPA_IS_PLUGIN_FILTER(category))

  128.                 return PLUGIN_CATEGORY_FILTER;

  129.             if (LADSPA_IS_PLUGIN_FREQUENCY(category))

  130.                 return PLUGIN_CATEGORY_UTILITY;

  131.             if (LADSPA_IS_PLUGIN_SIMULATOR(category))

  132.                 return PLUGIN_CATEGORY_OTHER;

  133.             if (LADSPA_IS_PLUGIN_TIME(category))

  134.                 return PLUGIN_CATEGORY_DELAY;

  135.             if (LADSPA_IS_PLUGIN_GENERATOR(category))

  136.                 return PLUGIN_CATEGORY_SYNTH;

  137.         }

  138. 

  139.         return CarlaPlugin::getCategory();

  140.     }

  141. 

  142.     int64_t getUniqueId() const noexcept override

  143.     {

  144.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr, 0);

  145. 

  146.         return static_cast<int64_t>(fDescriptor->UniqueID);

  147.     }

  148. 

  149.     // -------------------------------------------------------------------

  150.     // Information (count)

  151. 

  152.     uint32_t getParameterScalePointCount(const uint32_t parameterId) const noexcept override

  153.     {

  154.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, 0);

  155. 

  156.         const int32_t rindex(pData->param.data[parameterId].rindex);

  157. 

  158.         if (fRdfDescriptor != nullptr && rindex < static_cast<int32_t>(fRdfDescriptor->PortCount))

  159.         {

  160.             const LADSPA_RDF_Port* const port(&fRdfDescriptor->Ports[rindex]);

  161.             return static_cast<uint32_t>(port->ScalePointCount);

  162.         }

  163. 

  164.         return 0;

  165.     }

  166. 

  167.     // -------------------------------------------------------------------

  168.     // Information (current data)

  169. 

  170.     // nothing

  171. 

  172.     // -------------------------------------------------------------------

  173.     // Information (per-plugin data)

  174. 

  175.     uint getOptionsAvailable() const noexcept override

  176.     {

  177. #ifdef __USE_GNU

  178.         const bool isDssiVst(strcasestr(pData->filename, "dssi-vst") != nullptr);

  179. #else

  180.         const bool isDssiVst(std::strstr(pData->filename, "dssi-vst") != nullptr);

  181. #endif

  182. 

  183.         uint options = 0x0;

  184. 

  185.         if (! isDssiVst)

  186.         {

  187.             if (fLatencyIndex == -1)

  188.                 options |= PLUGIN_OPTION_FIXED_BUFFERS;

  189. 

  190.             if (pData->engine->getProccessMode() != ENGINE_PROCESS_MODE_CONTINUOUS_RACK)

  191.             {

  192.                 if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  193.                     options |= PLUGIN_OPTION_FORCE_STEREO;

  194.                 else if (pData->audioIn.count <= 1 && pData->audioOut.count <= 1 && (pData->audioIn.count != 0 || pData->audioOut.count != 0))

  195.                     options |= PLUGIN_OPTION_FORCE_STEREO;

  196.             }

  197.         }

  198. 

  199.         return options;

  200.     }

  201. 

  202.     float getParameterValue(const uint32_t parameterId) const noexcept override

  203.     {

  204.         CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr,         0.0f);

  205.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, 0.0f);

  206. 

  207.         return fParamBuffers[parameterId];

  208.     }

  209. 

  210.     float getParameterScalePointValue(const uint32_t parameterId, const uint32_t scalePointId) const noexcept override

  211.     {

  212.         CARLA_SAFE_ASSERT_RETURN(fRdfDescriptor != nullptr,        0.0f);

  213.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, 0.0f);

  214. 

  215.         const int32_t rindex(pData->param.data[parameterId].rindex);

  216. 

  217.         if (rindex < static_cast<int32_t>(fRdfDescriptor->PortCount))

  218.         {

  219.             const LADSPA_RDF_Port* const port(&fRdfDescriptor->Ports[rindex]);

  220.             CARLA_SAFE_ASSERT_RETURN(scalePointId < port->ScalePointCount, 0.0f);

  221. 

  222.             const LADSPA_RDF_ScalePoint* const scalePoint(&port->ScalePoints[scalePointId]);

  223.             return scalePoint->Value;

  224.         }

  225. 

  226.         return 0.0f;

  227.     }

  228. 

  229.     void getLabel(char* const strBuf) const noexcept override

  230.     {

  231.         CARLA_SAFE_ASSERT_RETURN(fDescriptor        != nullptr, nullStrBuf(strBuf));

  232.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->Label != nullptr, nullStrBuf(strBuf));

  233. 

  234.         std::strncpy(strBuf, fDescriptor->Label, STR_MAX);

  235.     }

  236. 

  237.     void getMaker(char* const strBuf) const noexcept override

  238.     {

  239.         CARLA_SAFE_ASSERT_RETURN(fDescriptor        != nullptr, nullStrBuf(strBuf));

  240.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->Maker != nullptr, nullStrBuf(strBuf));

  241. 

  242.         if (fRdfDescriptor != nullptr && fRdfDescriptor->Creator != nullptr)

  243.         {

  244.             std::strncpy(strBuf, fRdfDescriptor->Creator, STR_MAX);

  245.             return;

  246.         }

  247. 

  248.         std::strncpy(strBuf, fDescriptor->Maker, STR_MAX);

  249.     }

  250. 

  251.     void getCopyright(char* const strBuf) const noexcept override

  252.     {

  253.         CARLA_SAFE_ASSERT_RETURN(fDescriptor            != nullptr, nullStrBuf(strBuf));

  254.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->Copyright != nullptr, nullStrBuf(strBuf));

  255. 

  256.         std::strncpy(strBuf, fDescriptor->Copyright, STR_MAX);

  257.     }

  258. 

  259.     void getRealName(char* const strBuf) const noexcept override

  260.     {

  261.         CARLA_SAFE_ASSERT_RETURN(fDescriptor       != nullptr, nullStrBuf(strBuf));

  262.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->Name != nullptr, nullStrBuf(strBuf));

  263. 

  264.         if (fRdfDescriptor != nullptr && fRdfDescriptor->Title != nullptr)

  265.         {

  266.             std::strncpy(strBuf, fRdfDescriptor->Title, STR_MAX);

  267.             return;

  268.         }

  269. 

  270.         std::strncpy(strBuf, fDescriptor->Name, STR_MAX);

  271.     }

  272. 

  273.     void getParameterName(const uint32_t parameterId, char* const strBuf) const noexcept override

  274.     {

  275.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,           nullStrBuf(strBuf));

  276.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, nullStrBuf(strBuf));

  277. 

  278.         const int32_t rindex(pData->param.data[parameterId].rindex);

  279. 

  280.         CARLA_SAFE_ASSERT_RETURN(rindex < static_cast<int32_t>(fDescriptor->PortCount), nullStrBuf(strBuf));

  281.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortNames[rindex] != nullptr,             nullStrBuf(strBuf));

  282. 

  283.         if (getSeparatedParameterNameOrUnit(fDescriptor->PortNames[rindex], strBuf, true))

  284.             return;

  285. 

  286.         std::strncpy(strBuf, fDescriptor->PortNames[rindex], STR_MAX);

  287.     }

  288. 

  289.     void getParameterSymbol(const uint32_t parameterId, char* const strBuf) const noexcept override

  290.     {

  291.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, nullStrBuf(strBuf));

  292. 

  293.         const int32_t rindex(pData->param.data[parameterId].rindex);

  294. 

  295.         if (fRdfDescriptor != nullptr && rindex < static_cast<int32_t>(fRdfDescriptor->PortCount))

  296.         {

  297.             const LADSPA_RDF_Port* const port(&fRdfDescriptor->Ports[rindex]);

  298. 

  299.             if (LADSPA_PORT_HAS_LABEL(port->Hints))

  300.             {

  301.                 CARLA_SAFE_ASSERT_RETURN(port->Label != nullptr, nullStrBuf(strBuf));

  302. 

  303.                 std::strncpy(strBuf, port->Label, STR_MAX);

  304.                 return;

  305.             }

  306.         }

  307. 

  308.         nullStrBuf(strBuf);

  309.     }

  310. 

  311.     void getParameterUnit(const uint32_t parameterId, char* const strBuf) const noexcept override

  312.     {

  313.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, nullStrBuf(strBuf));

  314. 

  315.         const int32_t rindex(pData->param.data[parameterId].rindex);

  316. 

  317.         if (fRdfDescriptor != nullptr && rindex < static_cast<int32_t>(fRdfDescriptor->PortCount))

  318.         {

  319.             const LADSPA_RDF_Port* const port(&fRdfDescriptor->Ports[rindex]);

  320. 

  321.             if (LADSPA_PORT_HAS_UNIT(port->Hints))

  322.             {

  323.                 switch (port->Unit)

  324.                 {

  325.                 case LADSPA_UNIT_DB:

  326.                     std::strncpy(strBuf, "dB", STR_MAX);

  327.                     return;

  328.                 case LADSPA_UNIT_COEF:

  329.                     std::strncpy(strBuf, "(coef)", STR_MAX);

  330.                     return;

  331.                 case LADSPA_UNIT_HZ:

  332.                     std::strncpy(strBuf, "Hz", STR_MAX);

  333.                     return;

  334.                 case LADSPA_UNIT_S:

  335.                     std::strncpy(strBuf, "s", STR_MAX);

  336.                     return;

  337.                 case LADSPA_UNIT_MS:

  338.                     std::strncpy(strBuf, "ms", STR_MAX);

  339.                     return;

  340.                 case LADSPA_UNIT_MIN:

  341.                     std::strncpy(strBuf, "min", STR_MAX);

  342.                     return;

  343.                 }

  344.             }

  345.         }

  346. 

  347.         CARLA_SAFE_ASSERT_RETURN(rindex < static_cast<int32_t>(fDescriptor->PortCount), nullStrBuf(strBuf));

  348. 

  349.         if (getSeparatedParameterNameOrUnit(fDescriptor->PortNames[rindex], strBuf, false))

  350.             return;

  351. 

  352.         nullStrBuf(strBuf);

  353.     }

  354. 

  355.     void getParameterScalePointLabel(const uint32_t parameterId, const uint32_t scalePointId, char* const strBuf) const noexcept override

  356.     {

  357.         CARLA_SAFE_ASSERT_RETURN(fRdfDescriptor != nullptr,        nullStrBuf(strBuf));

  358.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, nullStrBuf(strBuf));

  359. 

  360.         const int32_t rindex(pData->param.data[parameterId].rindex);

  361. 

  362.         if (rindex < static_cast<int32_t>(fRdfDescriptor->PortCount))

  363.         {

  364.             const LADSPA_RDF_Port* const port(&fRdfDescriptor->Ports[rindex]);

  365.             CARLA_SAFE_ASSERT_RETURN(scalePointId < port->ScalePointCount, nullStrBuf(strBuf));

  366. 

  367.             const LADSPA_RDF_ScalePoint* const scalePoint(&port->ScalePoints[scalePointId]);

  368.             CARLA_SAFE_ASSERT_RETURN(scalePoint->Label != nullptr,         nullStrBuf(strBuf));

  369. 

  370.             std::strncpy(strBuf, scalePoint->Label, STR_MAX);

  371.             return;

  372.         }

  373. 

  374.         nullStrBuf(strBuf);

  375.     }

  376. 

  377.     // -------------------------------------------------------------------

  378.     // Set data (state)

  379. 

  380.     // nothing

  381. 

  382.     // -------------------------------------------------------------------

  383.     // Set data (internal stuff)

  384. 

  385.     // nothing

  386. 

  387.     // -------------------------------------------------------------------

  388.     // Set data (plugin-specific stuff)

  389. 

  390.     void setParameterValue(const uint32_t parameterId, const float value, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  391.     {

  392.         CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr,);

  393.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  394. 

  395.         const float fixedValue(pData->param.getFixedValue(parameterId, value));

  396.         fParamBuffers[parameterId] = fixedValue;

  397. 

  398.         CarlaPlugin::setParameterValue(parameterId, fixedValue, sendGui, sendOsc, sendCallback);

  399.     }

  400. 

  401.     // -------------------------------------------------------------------

  402.     // Set ui stuff

  403. 

  404.     void idle() override

  405.     {

  406.         if (fLatencyChanged && fLatencyIndex != -1)

  407.         {

  408.             fLatencyChanged = false;

  409. 

  410.             const int32_t latency(static_cast<int32_t>(fParamBuffers[fLatencyIndex]));

  411. 

  412.             if (latency >= 0)

  413.             {

  414.                 const uint32_t ulatency(static_cast<uint32_t>(latency));

  415. 

  416.                 if (pData->latency != ulatency)

  417.                 {

  418.                     carla_stdout("latency changed to %i", latency);

  419. 

  420.                     const ScopedSingleProcessLocker sspl(this, true);

  421. 

  422.                     pData->latency = ulatency;

  423.                     pData->client->setLatency(ulatency);

  424. #ifndef BUILD_BRIDGE

  425.                     pData->recreateLatencyBuffers();

  426. #endif

  427.                 }

  428.             }

  429.             else

  430.                 carla_safe_assert_int("latency >= 0", __FILE__, __LINE__, latency);

  431.         }

  432. 

  433.         CarlaPlugin::idle();

  434.     }

  435. 

  436.     // -------------------------------------------------------------------

  437.     // Plugin state

  438. 

  439.     void reload() override

  440.     {

  441.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr,);

  442.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  443.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  444.         carla_debug("LadspaPlugin::reload() - start");

  445. 

  446.         const EngineProcessMode processMode(pData->engine->getProccessMode());

  447. 

  448.         // Safely disable plugin for reload

  449.         const ScopedDisabler sd(this);

  450. 

  451.         if (pData->active)

  452.             deactivate();

  453. 

  454.         clearBuffers();

  455. 

  456.         const float sampleRate(static_cast<float>(pData->engine->getSampleRate()));

  457.         const uint32_t portCount(getSafePortCount());

  458. 

  459.         uint32_t aIns, aOuts, params;

  460.         aIns = aOuts = params = 0;

  461. 

  462.         bool forcedStereoIn, forcedStereoOut;

  463.         forcedStereoIn = forcedStereoOut = false;

  464. 

  465.         bool needsCtrlIn, needsCtrlOut;

  466.         needsCtrlIn = needsCtrlOut = false;

  467. 

  468.         for (uint32_t i=0; i < portCount; ++i)

  469.         {

  470.             const LADSPA_PortDescriptor portType(fDescriptor->PortDescriptors[i]);

  471. 

  472.             if (LADSPA_IS_PORT_AUDIO(portType))

  473.             {

  474.                 if (LADSPA_IS_PORT_INPUT(portType))

  475.                     aIns += 1;

  476.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  477.                     aOuts += 1;

  478.             }

  479.             else if (LADSPA_IS_PORT_CONTROL(portType))

  480.                 params += 1;

  481.         }

  482. 

  483.         if ((pData->options & PLUGIN_OPTION_FORCE_STEREO) != 0 && (aIns == 1 || aOuts == 1))

  484.         {

  485.             if (fHandle2 == nullptr)

  486.             {

  487.                 try {

  488.                     fHandle2 = fDescriptor->instantiate(fDescriptor, static_cast<ulong>(sampleRate));

  489.                 } CARLA_SAFE_EXCEPTION("LADSPA instantiate #2");

  490.             }

  491. 

  492.             if (fHandle2 != nullptr)

  493.             {

  494.                 if (aIns == 1)

  495.                 {

  496.                     aIns = 2;

  497.                     forcedStereoIn = true;

  498.                 }

  499. 

  500.                 if (aOuts == 1)

  501.                 {

  502.                     aOuts = 2;

  503.                     forcedStereoOut = true;

  504.                 }

  505.             }

  506.         }

  507. 

  508.         if (aIns > 0)

  509.         {

  510.             pData->audioIn.createNew(aIns);

  511.             fAudioInBuffers = new float*[aIns];

  512. 

  513.             for (uint32_t i=0; i < aIns; ++i)

  514.                 fAudioInBuffers[i] = nullptr;

  515.         }

  516. 

  517.         if (aOuts > 0)

  518.         {

  519.             pData->audioOut.createNew(aOuts);

  520.             fAudioOutBuffers = new float*[aOuts];

  521.             needsCtrlIn = true;

  522. 

  523.             for (uint32_t i=0; i < aOuts; ++i)

  524.                 fAudioOutBuffers[i] = nullptr;

  525.         }

  526. 

  527.         if (params > 0)

  528.         {

  529.             pData->param.createNew(params, true);

  530. 

  531.             fParamBuffers = new float[params];

  532.             FloatVectorOperations::clear(fParamBuffers, static_cast<int>(params));

  533.         }

  534. 

  535.         const uint portNameSize(pData->engine->getMaxPortNameSize());

  536.         CarlaString portName;

  537. 

  538.         for (uint32_t i=0, iAudioIn=0, iAudioOut=0, iCtrl=0; i < portCount; ++i)

  539.         {

  540.             const LADSPA_PortDescriptor portType      = fDescriptor->PortDescriptors[i];

  541.             const LADSPA_PortRangeHint portRangeHints = fDescriptor->PortRangeHints[i];

  542.             const bool hasPortRDF = (fRdfDescriptor != nullptr && i < fRdfDescriptor->PortCount);

  543. 

  544.             if (LADSPA_IS_PORT_AUDIO(portType))

  545.             {

  546.                 portName.clear();

  547. 

  548.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  549.                 {

  550.                     portName  = pData->name;

  551.                     portName += ":";

  552.                 }

  553. 

  554.                 if (fDescriptor->PortNames[i] != nullptr && fDescriptor->PortNames[i][0] != '\0')

  555.                 {

  556.                     portName += fDescriptor->PortNames[i];

  557.                 }

  558.                 else

  559.                 {

  560.                     if (LADSPA_IS_PORT_INPUT(portType))

  561.                     {

  562.                         if (aIns > 1)

  563.                         {

  564.                             portName += "audio-in_";

  565.                             portName += CarlaString(iAudioIn+1);

  566.                         }

  567.                         else

  568.                             portName += "audio-in";

  569.                     }

  570.                     else

  571.                     {

  572.                         if (aOuts > 1)

  573.                         {

  574.                             portName += "audio-out_";

  575.                             portName += CarlaString(iAudioOut+1);

  576.                         }

  577.                         else

  578.                             portName += "audio-out";

  579.                     }

  580.                 }

  581. 

  582.                 portName.truncate(portNameSize);

  583. 

  584.                 if (LADSPA_IS_PORT_INPUT(portType))

  585.                 {

  586.                     const uint32_t j = iAudioIn++;

  587.                     pData->audioIn.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true);

  588.                     pData->audioIn.ports[j].rindex = i;

  589. 

  590.                     if (forcedStereoIn)

  591.                     {

  592.                         portName += "_2";

  593.                         pData->audioIn.ports[1].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true);

  594.                         pData->audioIn.ports[1].rindex = i;

  595.                     }

  596.                 }

  597.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  598.                 {

  599.                     const uint32_t j = iAudioOut++;

  600.                     pData->audioOut.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false);

  601.                     pData->audioOut.ports[j].rindex = i;

  602. 

  603.                     if (forcedStereoOut)

  604.                     {

  605.                         portName += "_2";

  606.                         pData->audioOut.ports[1].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false);

  607.                         pData->audioOut.ports[1].rindex = i;

  608.                     }

  609.                 }

  610.                 else

  611.                     carla_stderr2("WARNING - Got a broken Port (Audio, but not input or output)");

  612.             }

  613.             else if (LADSPA_IS_PORT_CONTROL(portType))

  614.             {

  615.                 const uint32_t j = iCtrl++;

  616.                 pData->param.data[j].index  = static_cast<int32_t>(j);

  617.                 pData->param.data[j].rindex = static_cast<int32_t>(i);

  618. 

  619.                 const char* const paramName(fDescriptor->PortNames[i] != nullptr ? fDescriptor->PortNames[i] : "unknown");

  620. 

  621.                 float min, max, def, step, stepSmall, stepLarge;

  622. 

  623.                 // min value

  624.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  625.                     min = portRangeHints.LowerBound;

  626.                 else

  627.                     min = 0.0f;

  628. 

  629.                 // max value

  630.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  631.                     max = portRangeHints.UpperBound;

  632.                 else

  633.                     max = 1.0f;

  634. 

  635.                 if (min > max)

  636.                 {

  637.                     carla_stderr2("WARNING - Broken plugin parameter '%s': min > max", paramName);

  638.                     min = max - 0.1f;

  639.                 }

  640.                 else if (min == max)

  641.                 {

  642.                     carla_stderr2("WARNING - Broken plugin parameter '%s': min == maxf", paramName);

  643.                     max = min + 0.1f;

  644.                 }

  645. 

  646.                 // default value

  647.                 if (hasPortRDF && LADSPA_PORT_HAS_DEFAULT(fRdfDescriptor->Ports[i].Hints))

  648.                     def = fRdfDescriptor->Ports[i].Default;

  649.                 else

  650.                     def = get_default_ladspa_port_value(portRangeHints.HintDescriptor, min, max);

  651. 

  652.                 if (def < min)

  653.                     def = min;

  654.                 else if (def > max)

  655.                     def = max;

  656. 

  657.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  658.                 {

  659.                     min *= sampleRate;

  660.                     max *= sampleRate;

  661.                     def *= sampleRate;

  662.                     pData->param.data[j].hints |= PARAMETER_USES_SAMPLERATE;

  663.                 }

  664. 

  665.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  666.                 {

  667.                     step = max - min;

  668.                     stepSmall = step;

  669.                     stepLarge = step;

  670.                     pData->param.data[j].hints |= PARAMETER_IS_BOOLEAN;

  671.                 }

  672.                 else if (LADSPA_IS_HINT_INTEGER(portRangeHints.HintDescriptor))

  673.                 {

  674.                     step = 1.0f;

  675.                     stepSmall = 1.0f;

  676.                     stepLarge = 10.0f;

  677.                     pData->param.data[j].hints |= PARAMETER_IS_INTEGER;

  678.                 }

  679.                 else

  680.                 {

  681.                     const float range = max - min;

  682.                     step = range/100.0f;

  683.                     stepSmall = range/1000.0f;

  684.                     stepLarge = range/10.0f;

  685.                 }

  686. 

  687.                 if (LADSPA_IS_PORT_INPUT(portType))

  688.                 {

  689.                     pData->param.data[j].type   = PARAMETER_INPUT;

  690.                     pData->param.data[j].hints |= PARAMETER_IS_ENABLED;

  691.                     pData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE;

  692.                     needsCtrlIn = true;

  693.                 }

  694.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  695.                 {

  696.                     pData->param.data[j].type = PARAMETER_OUTPUT;

  697. 

  698.                     if (std::strcmp(paramName, "latency") == 0 || std::strcmp(paramName, "_latency") == 0)

  699.                     {

  700.                         min = 0.0f;

  701.                         max = sampleRate;

  702.                         def = 0.0f;

  703.                         step = 1.0f;

  704.                         stepSmall = 1.0f;

  705.                         stepLarge = 1.0f;

  706.                         pData->param.special[j] = PARAMETER_SPECIAL_LATENCY;

  707.                         CARLA_SAFE_ASSERT(fLatencyIndex == -1);

  708.                         fLatencyIndex = static_cast<int32_t>(j);

  709.                     }

  710.                     else

  711.                     {

  712.                         pData->param.data[j].hints |= PARAMETER_IS_ENABLED;

  713.                         pData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE;

  714.                         needsCtrlOut = true;

  715.                     }

  716.                 }

  717.                 else

  718.                 {

  719.                     carla_stderr2("WARNING - Got a broken Port (Control, but not input or output)");

  720.                 }

  721. 

  722.                 // extra parameter hints

  723.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

  724.                     pData->param.data[j].hints |= PARAMETER_IS_LOGARITHMIC;

  725. 

  726.                 // check for scalepoints, require at least 2 to make it useful

  727.                 if (hasPortRDF && fRdfDescriptor->Ports[i].ScalePointCount >= 2)

  728.                     pData->param.data[j].hints |= PARAMETER_USES_SCALEPOINTS;

  729. 

  730.                 pData->param.ranges[j].min = min;

  731.                 pData->param.ranges[j].max = max;

  732.                 pData->param.ranges[j].def = def;

  733.                 pData->param.ranges[j].step = step;

  734.                 pData->param.ranges[j].stepSmall = stepSmall;

  735.                 pData->param.ranges[j].stepLarge = stepLarge;

  736. 

  737.                 // Start parameters in their default values

  738.                 fParamBuffers[j] = def;

  739. 

  740.                 try {

  741.                     fDescriptor->connect_port(fHandle, i, &fParamBuffers[j]);

  742.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port parameter");

  743. 

  744.                 if (fHandle2 != nullptr)

  745.                 {

  746.                     try {

  747.                         fDescriptor->connect_port(fHandle2, i, &fParamBuffers[j]);

  748.                     } CARLA_SAFE_EXCEPTION("LADSPA connect_port parameter #2");

  749.                 }

  750.             }

  751.             else

  752.             {

  753.                 // Not Audio or Control

  754.                 carla_stderr2("ERROR - Got a broken Port (neither Audio or Control)");

  755. 

  756.                 try {

  757.                     fDescriptor->connect_port(fHandle, i, nullptr);

  758.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port null");

  759. 

  760.                 if (fHandle2 != nullptr)

  761.                 {

  762.                     try {

  763.                         fDescriptor->connect_port(fHandle2, i, nullptr);

  764.                     } CARLA_SAFE_EXCEPTION("LADSPA connect_port null #2");

  765.                 }

  766.             }

  767.         }

  768. 

  769.         if (needsCtrlIn)

  770.         {

  771.             portName.clear();

  772. 

  773.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  774.             {

  775.                 portName  = pData->name;

  776.                 portName += ":";

  777.             }

  778. 

  779.             portName += "events-in";

  780.             portName.truncate(portNameSize);

  781. 

  782.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  783.         }

  784. 

  785.         if (needsCtrlOut)

  786.         {

  787.             portName.clear();

  788. 

  789.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  790.             {

  791.                 portName  = pData->name;

  792.                 portName += ":";

  793.             }

  794. 

  795.             portName += "events-out";

  796.             portName.truncate(portNameSize);

  797. 

  798.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  799.         }

  800. 

  801.         if (forcedStereoIn || forcedStereoOut)

  802.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  803.         else

  804.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  805. 

  806.         // plugin hints

  807.         pData->hints = 0x0;

  808. 

  809.         if (LADSPA_IS_HARD_RT_CAPABLE(fDescriptor->Properties))

  810.             pData->hints |= PLUGIN_IS_RTSAFE;

  811. 

  812. #ifndef BUILD_BRIDGE

  813.         if (aOuts > 0 && (aIns == aOuts || aIns == 1))

  814.             pData->hints |= PLUGIN_CAN_DRYWET;

  815. 

  816.         if (aOuts > 0)

  817.             pData->hints |= PLUGIN_CAN_VOLUME;

  818. 

  819.         if (aOuts >= 2 && aOuts % 2 == 0)

  820.             pData->hints |= PLUGIN_CAN_BALANCE;

  821. #endif

  822. 

  823.         // extra plugin hints

  824.         pData->extraHints = 0x0;

  825. 

  826.         if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0))

  827.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  828. 

  829.         // check latency

  830.         if (fLatencyIndex >= 0)

  831.         {

  832.             // we need to pre-run the plugin so it can update its latency control-port

  833. 

  834.             float tmpIn [(aIns > 0)  ? aIns  : 1][2];

  835.             float tmpOut[(aOuts > 0) ? aOuts : 1][2];

  836. 

  837.             for (uint32_t j=0; j < aIns; ++j)

  838.             {

  839.                 tmpIn[j][0] = 0.0f;

  840.                 tmpIn[j][1] = 0.0f;

  841. 

  842.                 try {

  843.                     fDescriptor->connect_port(fHandle, pData->audioIn.ports[j].rindex, tmpIn[j]);

  844.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port latency input");

  845.             }

  846. 

  847.             for (uint32_t j=0; j < aOuts; ++j)

  848.             {

  849.                 tmpOut[j][0] = 0.0f;

  850.                 tmpOut[j][1] = 0.0f;

  851. 

  852.                 try {

  853.                     fDescriptor->connect_port(fHandle, pData->audioOut.ports[j].rindex, tmpOut[j]);

  854.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port latency output");

  855.             }

  856. 

  857.             if (fDescriptor->activate != nullptr)

  858.             {

  859.                 try {

  860.                     fDescriptor->activate(fHandle);

  861.                 } CARLA_SAFE_EXCEPTION("LADSPA latency activate");

  862.             }

  863. 

  864.             try {

  865.                 fDescriptor->run(fHandle, 2);

  866.             } CARLA_SAFE_EXCEPTION("LADSPA latency run");

  867. 

  868.             if (fDescriptor->deactivate != nullptr)

  869.             {

  870.                 try {

  871.                     fDescriptor->deactivate(fHandle);

  872.                 } CARLA_SAFE_EXCEPTION("LADSPA latency deactivate");

  873.             }

  874. 

  875.             const int32_t latency(static_cast<int32_t>(fParamBuffers[fLatencyIndex]));

  876. 

  877.             if (latency >= 0)

  878.             {

  879.                 const uint32_t ulatency(static_cast<uint32_t>(latency));

  880. 

  881.                 if (pData->latency != ulatency)

  882.                 {

  883.                     carla_stdout("latency = %i", latency);

  884. 

  885.                     pData->latency = ulatency;

  886.                     pData->client->setLatency(ulatency);

  887. #ifndef BUILD_BRIDGE

  888.                     pData->recreateLatencyBuffers();

  889. #endif

  890.                 }

  891.             }

  892.             else

  893.                 carla_safe_assert_int("latency >= 0", __FILE__, __LINE__, latency);

  894. 

  895.             fLatencyChanged = false;

  896.         }

  897. 

  898.         bufferSizeChanged(pData->engine->getBufferSize());

  899. 

  900.         if (pData->active)

  901.             activate();

  902. 

  903.         carla_debug("LadspaPlugin::reload() - end");

  904.     }

  905. 

  906.     // -------------------------------------------------------------------

  907.     // Plugin processing

  908. 

  909.     void activate() noexcept override

  910.     {

  911.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  912.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  913. 

  914.         if (fDescriptor->activate != nullptr)

  915.         {

  916.             try {

  917.                 fDescriptor->activate(fHandle);

  918.             } CARLA_SAFE_EXCEPTION("LADSPA activate");

  919. 

  920.             if (fHandle2 != nullptr)

  921.             {

  922.                 try {

  923.                     fDescriptor->activate(fHandle2);

  924.                 } CARLA_SAFE_EXCEPTION("LADSPA activate #2");

  925.             }

  926.         }

  927.     }

  928. 

  929.     void deactivate() noexcept override

  930.     {

  931.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  932.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  933. 

  934.         if (fDescriptor->deactivate != nullptr)

  935.         {

  936.             try {

  937.                 fDescriptor->deactivate(fHandle);

  938.             } CARLA_SAFE_EXCEPTION("LADSPA deactivate");

  939. 

  940.             if (fHandle2 != nullptr)

  941.             {

  942.                 try {

  943.                     fDescriptor->deactivate(fHandle2);

  944.                 } CARLA_SAFE_EXCEPTION("LADSPA deactivate #2");

  945.             }

  946.         }

  947.     }

  948. 

  949.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames) override

  950.     {

  951.         // --------------------------------------------------------------------------------------------------------

  952.         // Check if active

  953. 

  954.         if (! pData->active)

  955.         {

  956.             // disable any output sound

  957.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  958.                 FloatVectorOperations::clear(outBuffer[i], static_cast<int>(frames));

  959.             return;

  960.         }

  961. 

  962.         // --------------------------------------------------------------------------------------------------------

  963.         // Check if needs reset

  964. 

  965.         if (pData->needsReset)

  966.         {

  967. #ifndef BUILD_BRIDGE

  968.             if (pData->latency > 0)

  969.             {

  970.                 for (uint32_t i=0; i < pData->audioIn.count; ++i)

  971.                     FloatVectorOperations::clear(pData->latencyBuffers[i], static_cast<int>(pData->latency));

  972.             }

  973. #endif

  974. 

  975.             pData->needsReset = false;

  976.         }

  977. 

  978.         // --------------------------------------------------------------------------------------------------------

  979.         // Event Input and Processing

  980. 

  981.         if (pData->event.portIn != nullptr)

  982.         {

  983.             // ----------------------------------------------------------------------------------------------------

  984.             // Event Input (System)

  985. 

  986.             const bool isSampleAccurate = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  987. 

  988.             uint32_t numEvents  = pData->event.portIn->getEventCount();

  989.             uint32_t timeOffset = 0;

  990. 

  991.             for (uint32_t i=0; i < numEvents; ++i)

  992.             {

  993.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  994. 

  995.                 if (event.time >= frames)

  996.                     continue;

  997. 

  998.                 CARLA_ASSERT_INT2(event.time >= timeOffset, event.time, timeOffset);

  999. 

  1000.                 if (isSampleAccurate && event.time > timeOffset)

  1001.                 {

  1002.                     if (processSingle(inBuffer, outBuffer, event.time - timeOffset, timeOffset))

  1003.                         timeOffset = event.time;

  1004.                 }

  1005. 

  1006.                 switch (event.type)

  1007.                 {

  1008.                 case kEngineEventTypeNull:

  1009.                     break;

  1010. 

  1011.                 case kEngineEventTypeControl: {

  1012.                     const EngineControlEvent& ctrlEvent(event.ctrl);

  1013. 

  1014.                     switch (ctrlEvent.type)

  1015.                     {

  1016.                     case kEngineControlEventTypeNull:

  1017.                         break;

  1018. 

  1019.                     case kEngineControlEventTypeParameter: {

  1020. #ifndef BUILD_BRIDGE

  1021.                         // Control backend stuff

  1022.                         if (event.channel == pData->ctrlChannel)

  1023.                         {

  1024.                             float value;

  1025. 

  1026.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1027.                             {

  1028.                                 value = ctrlEvent.value;

  1029.                                 setDryWet(value, false, false);

  1030.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1031.                                 break;

  1032.                             }

  1033. 

  1034.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1035.                             {

  1036.                                 value = ctrlEvent.value*127.0f/100.0f;

  1037.                                 setVolume(value, false, false);

  1038.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1039.                                 break;

  1040.                             }

  1041. 

  1042.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1043.                             {

  1044.                                 float left, right;

  1045.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1046. 

  1047.                                 if (value < 0.0f)

  1048.                                 {

  1049.                                     left  = -1.0f;

  1050.                                     right = (value*2.0f)+1.0f;

  1051.                                 }

  1052.                                 else if (value > 0.0f)

  1053.                                 {

  1054.                                     left  = (value*2.0f)-1.0f;

  1055.                                     right = 1.0f;

  1056.                                 }

  1057.                                 else

  1058.                                 {

  1059.                                     left  = -1.0f;

  1060.                                     right = 1.0f;

  1061.                                 }

  1062. 

  1063.                                 setBalanceLeft(left, false, false);

  1064.                                 setBalanceRight(right, false, false);

  1065.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1066.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1067.                                 break;

  1068.                             }

  1069.                         }

  1070. #endif

  1071.                         // Control plugin parameters

  1072.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1073.                         {

  1074.                             if (pData->param.data[k].midiChannel != event.channel)

  1075.                                 continue;

  1076.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1077.                                 continue;

  1078.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1079.                                 continue;

  1080.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1081.                                 continue;

  1082. 

  1083.                             float value;

  1084. 

  1085.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1086.                             {

  1087.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1088.                             }

  1089.                             else

  1090.                             {

  1091.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1092. 

  1093.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1094.                                     value = std::rint(value);

  1095.                             }

  1096. 

  1097.                             setParameterValue(k, value, false, false, false);

  1098.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1099.                             break;

  1100.                         }

  1101.                         break;

  1102.                     } // case kEngineControlEventTypeParameter

  1103. 

  1104.                     case kEngineControlEventTypeMidiBank:

  1105.                     case kEngineControlEventTypeMidiProgram:

  1106.                     case kEngineControlEventTypeAllSoundOff:

  1107.                     case kEngineControlEventTypeAllNotesOff:

  1108.                         break;

  1109.                     } // switch (ctrlEvent.type)

  1110.                     break;

  1111.                 } // case kEngineEventTypeControl

  1112. 

  1113.                 case kEngineEventTypeMidi:

  1114.                     break;

  1115.                 } // switch (event.type)

  1116.             }

  1117. 

  1118.             pData->postRtEvents.trySplice();

  1119. 

  1120.             if (frames > timeOffset)

  1121.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset);

  1122. 

  1123.         } // End of Event Input and Processing

  1124. 

  1125.         // --------------------------------------------------------------------------------------------------------

  1126.         // Plugin processing (no events)

  1127. 

  1128.         else

  1129.         {

  1130.             processSingle(inBuffer, outBuffer, frames, 0);

  1131. 

  1132.         } // End of Plugin processing (no events)

  1133. 

  1134. #ifndef BUILD_BRIDGE

  1135.         // --------------------------------------------------------------------------------------------------------

  1136.         // Latency, save values for next callback

  1137. 

  1138.         if (fLatencyIndex != -1)

  1139.         {

  1140.             if (pData->latency != static_cast<uint32_t>(fParamBuffers[fLatencyIndex]))

  1141.             {

  1142.                 fLatencyChanged = true;

  1143.             }

  1144.             else if (pData->latency > 0)

  1145.             {

  1146.                 if (pData->latency <= frames)

  1147.                 {

  1148.                     for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1149.                         FloatVectorOperations::copy(pData->latencyBuffers[i], inBuffer[i]+(frames-pData->latency), static_cast<int>(pData->latency));

  1150.                 }

  1151.                 else

  1152.                 {

  1153.                     for (uint32_t i=0, j, k; i < pData->audioIn.count; ++i)

  1154.                     {

  1155.                         for (k=0; k < pData->latency-frames; ++k)

  1156.                             pData->latencyBuffers[i][k] = pData->latencyBuffers[i][k+frames];

  1157.                         for (j=0; k < pData->latency; ++j, ++k)

  1158.                             pData->latencyBuffers[i][k] = inBuffer[i][j];

  1159.                     }

  1160.                 }

  1161.             }

  1162.         }

  1163. 

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

  1165.         // Control Output

  1166. 

  1167.         if (pData->event.portOut != nullptr)

  1168.         {

  1169.             uint8_t  channel;

  1170.             uint16_t param;

  1171.             float    value;

  1172. 

  1173.             for (uint32_t k=0; k < pData->param.count; ++k)

  1174.             {

  1175.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1176.                     continue;

  1177. 

  1178.                 pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1179. 

  1180.                 if (pData->param.data[k].midiCC > 0)

  1181.                 {

  1182.                     channel = pData->param.data[k].midiChannel;

  1183.                     param   = static_cast<uint16_t>(pData->param.data[k].midiCC);

  1184.                     value   = pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]);

  1185.                     pData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value);

  1186.                 }

  1187.             }

  1188.         } // End of Control Output

  1189. #endif

  1190.     }

  1191. 

  1192.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1193.     {

  1194.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1195. 

  1196.         if (pData->audioIn.count > 0)

  1197.         {

  1198.             CARLA_SAFE_ASSERT_RETURN(inBuffer != nullptr, false);

  1199.         }

  1200.         if (pData->audioOut.count > 0)

  1201.         {

  1202.             CARLA_SAFE_ASSERT_RETURN(outBuffer != nullptr, false);

  1203.         }

  1204. 

  1205.         // --------------------------------------------------------------------------------------------------------

  1206.         // Try lock, silence otherwise

  1207. 

  1208.         if (pData->engine->isOffline())

  1209.         {

  1210.             pData->singleMutex.lock();

  1211.         }

  1212.         else if (! pData->singleMutex.tryLock())

  1213.         {

  1214.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1215.             {

  1216.                 for (uint32_t k=0; k < frames; ++k)

  1217.                     outBuffer[i][k+timeOffset] = 0.0f;

  1218.             }

  1219. 

  1220.             return false;

  1221.         }

  1222. 

  1223.         // --------------------------------------------------------------------------------------------------------

  1224.         // Reset audio buffers

  1225. 

  1226.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1227.             FloatVectorOperations::copy(fAudioInBuffers[i], inBuffer[i]+timeOffset, static_cast<int>(frames));

  1228. 

  1229.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1230.             FloatVectorOperations::clear(fAudioOutBuffers[i], static_cast<int>(frames));

  1231. 

  1232.         // --------------------------------------------------------------------------------------------------------

  1233.         // Run plugin

  1234. 

  1235.         try {

  1236.             fDescriptor->run(fHandle, frames);

  1237.         } CARLA_SAFE_EXCEPTION("LADSPA run");

  1238. 

  1239.         if (fHandle2 != nullptr)

  1240.         {

  1241.             try {

  1242.                 fDescriptor->run(fHandle2, frames);

  1243.             } CARLA_SAFE_EXCEPTION("LADSPA run #2");

  1244.         }

  1245. 

  1246. #ifndef BUILD_BRIDGE

  1247.         // --------------------------------------------------------------------------------------------------------

  1248.         // Post-processing (dry/wet, volume and balance)

  1249. 

  1250.         {

  1251.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && pData->postProc.dryWet != 1.0f;

  1252.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && (pData->postProc.balanceLeft != -1.0f || pData->postProc.balanceRight != 1.0f);

  1253.             const bool isMono    = (pData->audioIn.count == 1);

  1254. 

  1255.             bool isPair;

  1256.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1257. 

  1258.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1259.             {

  1260.                 // Dry/Wet

  1261.                 if (doDryWet)

  1262.                 {

  1263.                     for (uint32_t k=0; k < frames; ++k)

  1264.                     {

  1265.                         if (k < pData->latency)

  1266.                             bufValue = pData->latencyBuffers[isMono ? 0 : i][k];

  1267.                         else if (pData->latency < frames)

  1268.                             bufValue = fAudioInBuffers[isMono ? 0 : i][k-pData->latency];

  1269.                         else

  1270.                             bufValue = fAudioInBuffers[isMono ? 0 : i][k];

  1271. 

  1272.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1273.                     }

  1274.                 }

  1275. 

  1276.                 // Balance

  1277.                 if (doBalance)

  1278.                 {

  1279.                     isPair = (i % 2 == 0);

  1280. 

  1281.                     if (isPair)

  1282.                     {

  1283.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1284.                         FloatVectorOperations::copy(oldBufLeft, fAudioOutBuffers[i], static_cast<int>(frames));

  1285.                     }

  1286. 

  1287.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1288.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1289. 

  1290.                     for (uint32_t k=0; k < frames; ++k)

  1291.                     {

  1292.                         if (isPair)

  1293.                         {

  1294.                             // left

  1295.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1296.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1297.                         }

  1298.                         else

  1299.                         {

  1300.                             // right

  1301.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1302.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1303.                         }

  1304.                     }

  1305.                 }

  1306. 

  1307.                 // Volume (and buffer copy)

  1308.                 {

  1309.                     for (uint32_t k=0; k < frames; ++k)

  1310.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1311.                 }

  1312.             }

  1313. 

  1314.         } // End of Post-processing

  1315. 

  1316. #else // BUILD_BRIDGE

  1317.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1318.         {

  1319.             for (uint32_t k=0; k < frames; ++k)

  1320.                 outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1321.         }

  1322. #endif

  1323. 

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

  1325. 

  1326.         pData->singleMutex.unlock();

  1327.         return true;

  1328.     }

  1329. 

  1330.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1331.     {

  1332.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1333.         carla_debug("LadspaPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1334. 

  1335.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1336.         {

  1337.             if (fAudioInBuffers[i] != nullptr)

  1338.                 delete[] fAudioInBuffers[i];

  1339.             fAudioInBuffers[i] = new float[newBufferSize];

  1340.         }

  1341. 

  1342.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1343.         {

  1344.             if (fAudioOutBuffers[i] != nullptr)

  1345.                 delete[] fAudioOutBuffers[i];

  1346.             fAudioOutBuffers[i] = new float[newBufferSize];

  1347.         }

  1348. 

  1349.         if (fHandle2 == nullptr)

  1350.         {

  1351.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1352.             {

  1353.                 CARLA_ASSERT(fAudioInBuffers[i] != nullptr);

  1354. 

  1355.                 try {

  1356.                     fDescriptor->connect_port(fHandle, pData->audioIn.ports[i].rindex, fAudioInBuffers[i]);

  1357.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port audio input");

  1358.             }

  1359. 

  1360.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1361.             {

  1362.                 CARLA_ASSERT(fAudioOutBuffers[i] != nullptr);

  1363. 

  1364.                 try {

  1365.                     fDescriptor->connect_port(fHandle, pData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  1366.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port audio output");

  1367.             }

  1368.         }

  1369.         else

  1370.         {

  1371.             if (pData->audioIn.count > 0)

  1372.             {

  1373.                 CARLA_ASSERT(pData->audioIn.count == 2);

  1374.                 CARLA_ASSERT(fAudioInBuffers[0] != nullptr);

  1375.                 CARLA_ASSERT(fAudioInBuffers[1] != nullptr);

  1376. 

  1377.                 try {

  1378.                     fDescriptor->connect_port(fHandle, pData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  1379.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port audio input #1");

  1380. 

  1381.                 try {

  1382.                     fDescriptor->connect_port(fHandle2, pData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  1383.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port audio input #2");

  1384.             }

  1385. 

  1386.             if (pData->audioOut.count > 0)

  1387.             {

  1388.                 CARLA_ASSERT(pData->audioOut.count == 2);

  1389.                 CARLA_ASSERT(fAudioOutBuffers[0] != nullptr);

  1390.                 CARLA_ASSERT(fAudioOutBuffers[1] != nullptr);

  1391. 

  1392.                 try {

  1393.                     fDescriptor->connect_port(fHandle, pData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  1394.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port audio output #1");

  1395. 

  1396.                 try {

  1397.                     fDescriptor->connect_port(fHandle2, pData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  1398.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port audio output #2");

  1399.             }

  1400.         }

  1401. 

  1402.         carla_debug("LadspaPlugin::bufferSizeChanged(%i) - end", newBufferSize);

  1403.     }

  1404. 

  1405.     void sampleRateChanged(const double newSampleRate) override

  1406.     {

  1407.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  1408.         carla_debug("LadspaPlugin::sampleRateChanged(%g) - start", newSampleRate);

  1409. 

  1410.         // TODO

  1411.         (void)newSampleRate;

  1412. 

  1413.         carla_debug("LadspaPlugin::sampleRateChanged(%g) - end", newSampleRate);

  1414.     }

  1415. 

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

  1417.     // Plugin buffers

  1418. 

  1419.     void clearBuffers() noexcept override

  1420.     {

  1421.         carla_debug("LadspaPlugin::clearBuffers() - start");

  1422. 

  1423.         if (fAudioInBuffers != nullptr)

  1424.         {

  1425.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1426.             {

  1427.                 if (fAudioInBuffers[i] != nullptr)

  1428.                 {

  1429.                     delete[] fAudioInBuffers[i];

  1430.                     fAudioInBuffers[i] = nullptr;

  1431.                 }

  1432.             }

  1433. 

  1434.             delete[] fAudioInBuffers;

  1435.             fAudioInBuffers = nullptr;

  1436.         }

  1437. 

  1438.         if (fAudioOutBuffers != nullptr)

  1439.         {

  1440.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1441.             {

  1442.                 if (fAudioOutBuffers[i] != nullptr)

  1443.                 {

  1444.                     delete[] fAudioOutBuffers[i];

  1445.                     fAudioOutBuffers[i] = nullptr;

  1446.                 }

  1447.             }

  1448. 

  1449.             delete[] fAudioOutBuffers;

  1450.             fAudioOutBuffers = nullptr;

  1451.         }

  1452. 

  1453.         if (fParamBuffers != nullptr)

  1454.         {

  1455.             delete[] fParamBuffers;

  1456.             fParamBuffers = nullptr;

  1457.         }

  1458. 

  1459.         CarlaPlugin::clearBuffers();

  1460. 

  1461.         carla_debug("LadspaPlugin::clearBuffers() - end");

  1462.     }

  1463. 

  1464.     // -------------------------------------------------------------------

  1465. 

  1466.     void* getNativeHandle() const noexcept override

  1467.     {

  1468.         return fHandle;

  1469.     }

  1470. 

  1471.     const void* getNativeDescriptor() const noexcept override

  1472.     {

  1473.         return fDescriptor;

  1474.     }

  1475. 

  1476.     const void* getExtraStuff() const noexcept override

  1477.     {

  1478.         return fRdfDescriptor;

  1479.     }

  1480. 

  1481.     // -------------------------------------------------------------------

  1482. 

  1483.     bool init(const char* const filename, const char* const name, const char* const label, const LADSPA_RDF_Descriptor* const rdfDescriptor)

  1484.     {

  1485.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  1486. 

  1487.         // ---------------------------------------------------------------

  1488.         // first checks

  1489. 

  1490.         if (pData->client != nullptr)

  1491.         {

  1492.             pData->engine->setLastError("Plugin client is already registered");

  1493.             return false;

  1494.         }

  1495. 

  1496.         if (filename == nullptr || filename[0] == '\0')

  1497.         {

  1498.             pData->engine->setLastError("null filename");

  1499.             return false;

  1500.         }

  1501. 

  1502.         if (label == nullptr || label[0] == '\0')

  1503.         {

  1504.             pData->engine->setLastError("null label");

  1505.             return false;

  1506.         }

  1507. 

  1508.         // ---------------------------------------------------------------

  1509.         // open DLL

  1510. 

  1511.         if (! pData->libOpen(filename))

  1512.         {

  1513.             pData->engine->setLastError(pData->libError(filename));

  1514.             return false;

  1515.         }

  1516. 

  1517.         // ---------------------------------------------------------------

  1518.         // get DLL main entry

  1519. 

  1520.         const LADSPA_Descriptor_Function descFn = (LADSPA_Descriptor_Function)pData->libSymbol("ladspa_descriptor");

  1521. 

  1522.         if (descFn == nullptr)

  1523.         {

  1524.             pData->engine->setLastError("Could not find the LASDPA Descriptor in the plugin library");

  1525.             return false;

  1526.         }

  1527. 

  1528.         // ---------------------------------------------------------------

  1529.         // get descriptor that matches label

  1530. 

  1531.         ulong i = 0;

  1532. 

  1533.         for (;;)

  1534.         {

  1535.             try {

  1536.                 fDescriptor = descFn(i++);

  1537.             }

  1538.             catch(...) {

  1539.                 carla_stderr2("Caught exception when trying to get LADSPA descriptor");

  1540.                 fDescriptor = nullptr;

  1541.                 break;

  1542.             }

  1543. 

  1544.             if (fDescriptor == nullptr)

  1545.                 break;

  1546. 

  1547.             if (fDescriptor->Label == nullptr || fDescriptor->Label[0] == '\0')

  1548.             {

  1549.                 carla_stderr2("WARNING - Got an invalid label, will not use this plugin");

  1550.                 fDescriptor = nullptr;

  1551.                 break;

  1552.             }

  1553.             if (fDescriptor->run == nullptr)

  1554.             {

  1555.                 carla_stderr2("WARNING - Plugin has no run, cannot use it");

  1556.                 fDescriptor = nullptr;

  1557.                 break;

  1558.             }

  1559. 

  1560.             if (std::strcmp(fDescriptor->Label, label) == 0)

  1561.                 break;

  1562.         }

  1563. 

  1564.         if (fDescriptor == nullptr)

  1565.         {

  1566.             pData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  1567.             return false;

  1568.         }

  1569. 

  1570.         // ---------------------------------------------------------------

  1571.         // get info

  1572. 

  1573.         if (is_ladspa_rdf_descriptor_valid(rdfDescriptor, fDescriptor))

  1574.             fRdfDescriptor = ladspa_rdf_dup(rdfDescriptor);

  1575. 

  1576.         if (name != nullptr && name[0] != '\0')

  1577.             pData->name = pData->engine->getUniquePluginName(name);

  1578.         else if (fRdfDescriptor != nullptr && fRdfDescriptor->Title != nullptr && fRdfDescriptor->Title[0] != '\0')

  1579.             pData->name = pData->engine->getUniquePluginName(fRdfDescriptor->Title);

  1580.         else if (fDescriptor->Name != nullptr && fDescriptor->Name[0] != '\0')

  1581.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Name);

  1582.         else

  1583.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Label);

  1584. 

  1585.         pData->filename = carla_strdup(filename);

  1586. 

  1587.         // ---------------------------------------------------------------

  1588.         // register client

  1589. 

  1590.         pData->client = pData->engine->addClient(this);

  1591. 

  1592.         if (pData->client == nullptr || ! pData->client->isOk())

  1593.         {

  1594.             pData->engine->setLastError("Failed to register plugin client");

  1595.             return false;

  1596.         }

  1597. 

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

  1599.         // initialize plugin

  1600. 

  1601.         try {

  1602.             fHandle = fDescriptor->instantiate(fDescriptor, static_cast<ulong>(pData->engine->getSampleRate()));

  1603.         } CARLA_SAFE_EXCEPTION("LADSPA instantiate");

  1604. 

  1605.         if (fHandle == nullptr)

  1606.         {

  1607.             pData->engine->setLastError("Plugin failed to initialize");

  1608.             return false;

  1609.         }

  1610. 

  1611.         // ---------------------------------------------------------------

  1612.         // set default options

  1613. 

  1614. #ifdef __USE_GNU

  1615.         const bool isDssiVst(strcasestr(pData->filename, "dssi-vst") != nullptr);

  1616. #else

  1617.         const bool isDssiVst(std::strstr(pData->filename, "dssi-vst") != nullptr);

  1618. #endif

  1619. 

  1620.         pData->options = 0x0;

  1621. 

  1622.         if (fLatencyIndex >= 0 || isDssiVst)

  1623.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  1624. 

  1625.         if (pData->engine->getOptions().forceStereo)

  1626.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1627. 

  1628.         return true;

  1629.     }

  1630. 

  1631.     // -------------------------------------------------------------------

  1632. 

  1633. private:

  1634.     LADSPA_Handle fHandle;

  1635.     LADSPA_Handle fHandle2;

  1636.     const LADSPA_Descriptor*     fDescriptor;

  1637.     const LADSPA_RDF_Descriptor* fRdfDescriptor;

  1638. 

  1639.     float** fAudioInBuffers;

  1640.     float** fAudioOutBuffers;

  1641.     float*  fParamBuffers;

  1642. 

  1643.     bool    fLatencyChanged;

  1644.     int32_t fLatencyIndex; // -1 if invalid

  1645. 

  1646.     // -------------------------------------------------------------------

  1647. 

  1648.     uint32_t getSafePortCount() const noexcept

  1649.     {

  1650.         if (fDescriptor->PortCount == 0)

  1651.             return 0;

  1652. 

  1653.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortDescriptors != nullptr, 0);

  1654.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortRangeHints != nullptr, 0);

  1655.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortNames != nullptr, 0);

  1656. 

  1657.         return static_cast<uint32_t>(fDescriptor->PortCount);

  1658.     }

  1659. 

  1660.     bool getSeparatedParameterNameOrUnit(const char* const paramName, char* const strBuf, const bool wantName) const noexcept

  1661.     {

  1662.         if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, true))

  1663.             return true;

  1664.         if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, false))

  1665.             return true;

  1666.         return false;

  1667.     }

  1668. 

  1669.     bool _getSeparatedParameterNameOrUnitImpl(const char* const paramName, char* const strBuf, const bool wantName, const bool useBracket) const noexcept

  1670.     {

  1671.         const char* const sepBracketStart(std::strstr(paramName, useBracket ? " [" : " ("));

  1672. 

  1673.         if (sepBracketStart == nullptr)

  1674.             return false;

  1675. 

  1676.         const char* const sepBracketEnd(std::strstr(sepBracketStart, useBracket ? "]" : ")"));

  1677. 

  1678.         if (sepBracketEnd == nullptr)

  1679.             return false;

  1680. 

  1681.         const size_t unitSize(static_cast<size_t>(sepBracketEnd-sepBracketStart-2));

  1682. 

  1683.         if (unitSize > 7) // very unlikely to have such big unit

  1684.             return false;

  1685. 

  1686.         const size_t sepIndex(std::strlen(paramName)-unitSize-3);

  1687. 

  1688.         // just in case

  1689.         if (sepIndex > STR_MAX)

  1690.             return false;

  1691. 

  1692.         if (wantName)

  1693.         {

  1694.             std::strncpy(strBuf, paramName, sepIndex);

  1695.             strBuf[sepIndex] = '\0';

  1696.         }

  1697.         else

  1698.         {

  1699.             std::strncpy(strBuf, paramName+(sepIndex+2), unitSize);

  1700.             strBuf[unitSize] = '\0';

  1701.         }

  1702. 

  1703.         return true;

  1704.     }

  1705. 

  1706.     // -------------------------------------------------------------------

  1707. 

  1708.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(LadspaPlugin)

  1709. };

  1710. 

  1711. // -------------------------------------------------------------------------------------------------------------------

  1712. 

  1713. CarlaPlugin* CarlaPlugin::newLADSPA(const Initializer& init, const LADSPA_RDF_Descriptor* const rdfDescriptor)

  1714. {

  1715.     carla_debug("CarlaPlugin::newLADSPA({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "}, %p)", init.engine, init.filename, init.name, init.label, init.uniqueId, rdfDescriptor);

  1716. 

  1717.     LadspaPlugin* const plugin(new LadspaPlugin(init.engine, init.id));

  1718. 

  1719.     if (! plugin->init(init.filename, init.name, init.label, rdfDescriptor))

  1720.     {

  1721.         delete plugin;

  1722.         return nullptr;

  1723.     }

  1724. 

  1725.     plugin->reload();

  1726. 

  1727.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && ! plugin->canRunInRack())

  1728.     {

  1729.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo LADSPA plugins, sorry!");

  1730.         delete plugin;

  1731.         return nullptr;

  1732.     }

  1733. 

  1734.     return plugin;

  1735. }

  1736. 

  1737. // -------------------------------------------------------------------------------------------------------------------

  1738. 

  1739. CARLA_BACKEND_END_NAMESPACE