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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.     {

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

  44.     }

  45. 

  46.     ~LadspaPlugin() noexcept override

  47.     {

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

  49. 

  50.         pData->singleMutex.lock();

  51.         pData->masterMutex.lock();

  52. 

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

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

  55. 

  56.         if (pData->active)

  57.         {

  58.             deactivate();

  59.             pData->active = false;

  60.         }

  61. 

  62.         if (fDescriptor != nullptr)

  63.         {

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

  65.             {

  66.                 if (fHandle != nullptr)

  67.                 {

  68.                     try {

  69.                         fDescriptor->cleanup(fHandle);

  70.                     } CARLA_SAFE_EXCEPTION("LADSPA cleanup");

  71.                 }

  72. 

  73.                 if (fHandle2 != nullptr)

  74.                 {

  75.                     try {

  76.                         fDescriptor->cleanup(fHandle2);

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

  78.                 }

  79.             }

  80. 

  81.             fHandle     = nullptr;

  82.             fHandle2    = nullptr;

  83.             fDescriptor = nullptr;

  84.         }

  85. 

  86.         if (fRdfDescriptor != nullptr)

  87.         {

  88.             delete fRdfDescriptor;

  89.             fRdfDescriptor = nullptr;

  90.         }

  91. 

  92.         clearBuffers();

  93.     }

  94. 

  95.     // -------------------------------------------------------------------

  96.     // Information (base)

  97. 

  98.     PluginType getType() const noexcept override

  99.     {

  100.         return PLUGIN_LADSPA;

  101.     }

  102. 

  103.     PluginCategory getCategory() const noexcept override

  104.     {

  105.         if (fRdfDescriptor != nullptr)

  106.         {

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

  108. 

  109.             // Specific Types

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

  111.                 return PLUGIN_CATEGORY_DELAY;

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

  113.                 return PLUGIN_CATEGORY_MODULATOR;

  114.             if (category & (LADSPA_PLUGIN_AMPLIFIER))

  115.                 return PLUGIN_CATEGORY_DYNAMICS;

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

  117.                 return PLUGIN_CATEGORY_UTILITY;

  118. 

  119.             // Pre-set LADSPA Types

  120.             if (LADSPA_IS_PLUGIN_DYNAMICS(category))

  121.                 return PLUGIN_CATEGORY_DYNAMICS;

  122.             if (LADSPA_IS_PLUGIN_AMPLITUDE(category))

  123.                 return PLUGIN_CATEGORY_MODULATOR;

  124.             if (LADSPA_IS_PLUGIN_EQ(category))

  125.                 return PLUGIN_CATEGORY_EQ;

  126.             if (LADSPA_IS_PLUGIN_FILTER(category))

  127.                 return PLUGIN_CATEGORY_FILTER;

  128.             if (LADSPA_IS_PLUGIN_FREQUENCY(category))

  129.                 return PLUGIN_CATEGORY_UTILITY;

  130.             if (LADSPA_IS_PLUGIN_SIMULATOR(category))

  131.                 return PLUGIN_CATEGORY_OTHER;

  132.             if (LADSPA_IS_PLUGIN_TIME(category))

  133.                 return PLUGIN_CATEGORY_DELAY;

  134.             if (LADSPA_IS_PLUGIN_GENERATOR(category))

  135.                 return PLUGIN_CATEGORY_SYNTH;

  136.         }

  137. 

  138.         return CarlaPlugin::getCategory();

  139.     }

  140. 

  141.     int64_t getUniqueId() const noexcept override

  142.     {

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

  144. 

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

  146.     }

  147. 

  148.     // -------------------------------------------------------------------

  149.     // Information (count)

  150. 

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

  152.     {

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

  154. 

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

  156. 

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

  158.         {

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

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

  161.         }

  162. 

  163.         return 0;

  164.     }

  165. 

  166.     // -------------------------------------------------------------------

  167.     // Information (current data)

  168. 

  169.     // nothing

  170. 

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

  172.     // Information (per-plugin data)

  173. 

  174.     uint getOptionsAvailable() const noexcept override

  175.     {

  176. #ifdef __USE_GNU

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

  178. #else

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

  180. #endif

  181. 

  182.         uint options = 0x0;

  183. 

  184.         if (! isDssiVst)

  185.         {

  186.             if (fLatencyIndex == -1)

  187.                 options |= PLUGIN_OPTION_FIXED_BUFFERS;

  188. 

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

  190.             {

  191.                 if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  192.                     options |= PLUGIN_OPTION_FORCE_STEREO;

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

  194.                     options |= PLUGIN_OPTION_FORCE_STEREO;

  195.             }

  196.         }

  197. 

  198.         return options;

  199.     }

  200. 

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

  202.     {

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

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

  205. 

  206.         return fParamBuffers[parameterId];

  207.     }

  208. 

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

  210.     {

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

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

  213. 

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

  215. 

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

  217.         {

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

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

  220. 

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

  222.             return scalePoint->Value;

  223.         }

  224. 

  225.         return 0.0f;

  226.     }

  227. 

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

  229.     {

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

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

  232. 

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

  234.     }

  235. 

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

  237.     {

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

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

  240. 

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

  242.         {

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

  244.             return;

  245.         }

  246. 

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

  248.     }

  249. 

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

  251.     {

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

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

  254. 

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

  256.     }

  257. 

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

  259.     {

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

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

  262. 

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

  264.         {

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

  266.             return;

  267.         }

  268. 

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

  270.     }

  271. 

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

  273.     {

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

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

  276. 

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

  278. 

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

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

  281. 

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

  283.             return;

  284. 

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

  286.     }

  287. 

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

  289.     {

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

  291. 

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

  293. 

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

  295.         {

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

  297. 

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

  299.             {

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

  301. 

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

  303.                 return;

  304.             }

  305.         }

  306. 

  307.         nullStrBuf(strBuf);

  308.     }

  309. 

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

  311.     {

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

  313. 

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

  315. 

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

  317.         {

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

  319. 

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

  321.             {

  322.                 switch (port->Unit)

  323.                 {

  324.                 case LADSPA_UNIT_DB:

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

  326.                     return;

  327.                 case LADSPA_UNIT_COEF:

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

  329.                     return;

  330.                 case LADSPA_UNIT_HZ:

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

  332.                     return;

  333.                 case LADSPA_UNIT_S:

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

  335.                     return;

  336.                 case LADSPA_UNIT_MS:

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

  338.                     return;

  339.                 case LADSPA_UNIT_MIN:

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

  341.                     return;

  342.                 }

  343.             }

  344.         }

  345. 

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

  347. 

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

  349.             return;

  350. 

  351.         nullStrBuf(strBuf);

  352.     }

  353. 

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

  355.     {

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

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

  358. 

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

  360. 

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

  362.         {

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

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

  365. 

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

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

  368. 

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

  370.             return;

  371.         }

  372. 

  373.         nullStrBuf(strBuf);

  374.     }

  375. 

  376.     // -------------------------------------------------------------------

  377.     // Set data (state)

  378. 

  379.     // nothing

  380. 

  381.     // -------------------------------------------------------------------

  382.     // Set data (internal stuff)

  383. 

  384.     // nothing

  385. 

  386.     // -------------------------------------------------------------------

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

  388. 

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

  390.     {

  391.         CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr,);

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

  393. 

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

  395.         fParamBuffers[parameterId] = fixedValue;

  396. 

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

  398.     }

  399. 

  400.     // -------------------------------------------------------------------

  401.     // Set ui stuff

  402. 

  403.     void idle() override

  404.     {

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

  406.         {

  407.             fLatencyChanged = false;

  408. 

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

  410. 

  411.             if (latency >= 0)

  412.             {

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

  414. 

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

  416.                 {

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

  418. 

  419.                     const ScopedSingleProcessLocker sspl(this, true);

  420. 

  421.                     pData->latency = ulatency;

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

  423. #ifndef BUILD_BRIDGE

  424.                     pData->recreateLatencyBuffers();

  425. #endif

  426.                 }

  427.             }

  428.             else

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

  430.         }

  431.     }

  432. 

  433.     // -------------------------------------------------------------------

  434.     // Plugin state

  435. 

  436.     void reload() override

  437.     {

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

  439.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  440.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  442. 

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

  444. 

  445.         // Safely disable plugin for reload

  446.         const ScopedDisabler sd(this);

  447. 

  448.         if (pData->active)

  449.             deactivate();

  450. 

  451.         clearBuffers();

  452. 

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

  454.         const uint32_t portCount(getSafePortCount());

  455. 

  456.         uint32_t aIns, aOuts, params;

  457.         aIns = aOuts = params = 0;

  458. 

  459.         bool forcedStereoIn, forcedStereoOut;

  460.         forcedStereoIn = forcedStereoOut = false;

  461. 

  462.         bool needsCtrlIn, needsCtrlOut;

  463.         needsCtrlIn = needsCtrlOut = false;

  464. 

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

  466.         {

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

  468. 

  469.             if (LADSPA_IS_PORT_AUDIO(portType))

  470.             {

  471.                 if (LADSPA_IS_PORT_INPUT(portType))

  472.                     aIns += 1;

  473.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  474.                     aOuts += 1;

  475.             }

  476.             else if (LADSPA_IS_PORT_CONTROL(portType))

  477.                 params += 1;

  478.         }

  479. 

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

  481.         {

  482.             if (fHandle2 == nullptr)

  483.             {

  484.                 try {

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

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

  487.             }

  488. 

  489.             if (fHandle2 != nullptr)

  490.             {

  491.                 if (aIns == 1)

  492.                 {

  493.                     aIns = 2;

  494.                     forcedStereoIn = true;

  495.                 }

  496. 

  497.                 if (aOuts == 1)

  498.                 {

  499.                     aOuts = 2;

  500.                     forcedStereoOut = true;

  501.                 }

  502.             }

  503.         }

  504. 

  505.         if (aIns > 0)

  506.         {

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

  508.             fAudioInBuffers = new float*[aIns];

  509. 

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

  511.                 fAudioInBuffers[i] = nullptr;

  512.         }

  513. 

  514.         if (aOuts > 0)

  515.         {

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

  517.             fAudioOutBuffers = new float*[aOuts];

  518.             needsCtrlIn = true;

  519. 

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

  521.                 fAudioOutBuffers[i] = nullptr;

  522.         }

  523. 

  524.         if (params > 0)

  525.         {

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

  527. 

  528.             fParamBuffers = new float[params];

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

  530.         }

  531. 

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

  533.         CarlaString portName;

  534. 

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

  536.         {

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

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

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

  540. 

  541.             if (LADSPA_IS_PORT_AUDIO(portType))

  542.             {

  543.                 portName.clear();

  544. 

  545.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  546.                 {

  547.                     portName  = pData->name;

  548.                     portName += ":";

  549.                 }

  550. 

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

  552.                 {

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

  554.                 }

  555.                 else

  556.                 {

  557.                     if (LADSPA_IS_PORT_INPUT(portType))

  558.                     {

  559.                         if (aIns > 1)

  560.                         {

  561.                             portName += "audio-in_";

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

  563.                         }

  564.                         else

  565.                             portName += "audio-in";

  566.                     }

  567.                     else

  568.                     {

  569.                         if (aOuts > 1)

  570.                         {

  571.                             portName += "audio-out_";

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

  573.                         }

  574.                         else

  575.                             portName += "audio-out";

  576.                     }

  577.                 }

  578. 

  579.                 portName.truncate(portNameSize);

  580. 

  581.                 if (LADSPA_IS_PORT_INPUT(portType))

  582.                 {

  583.                     const uint32_t j = iAudioIn++;

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

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

  586. 

  587.                     if (forcedStereoIn)

  588.                     {

  589.                         portName += "_2";

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

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

  592.                     }

  593.                 }

  594.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  595.                 {

  596.                     const uint32_t j = iAudioOut++;

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

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

  599. 

  600.                     if (forcedStereoOut)

  601.                     {

  602.                         portName += "_2";

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

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

  605.                     }

  606.                 }

  607.                 else

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

  609.             }

  610.             else if (LADSPA_IS_PORT_CONTROL(portType))

  611.             {

  612.                 const uint32_t j = iCtrl++;

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

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

  615. 

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

  617. 

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

  619. 

  620.                 // min value

  621.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  622.                     min = portRangeHints.LowerBound;

  623.                 else

  624.                     min = 0.0f;

  625. 

  626.                 // max value

  627.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  628.                     max = portRangeHints.UpperBound;

  629.                 else

  630.                     max = 1.0f;

  631. 

  632.                 if (min > max)

  633.                 {

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

  635.                     min = max - 0.1f;

  636.                 }

  637.                 else if (min == max)

  638.                 {

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

  640.                     max = min + 0.1f;

  641.                 }

  642. 

  643.                 // default value

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

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

  646.                 else

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

  648. 

  649.                 if (def < min)

  650.                     def = min;

  651.                 else if (def > max)

  652.                     def = max;

  653. 

  654.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  655.                 {

  656.                     min *= sampleRate;

  657.                     max *= sampleRate;

  658.                     def *= sampleRate;

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

  660.                 }

  661. 

  662.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  663.                 {

  664.                     step = max - min;

  665.                     stepSmall = step;

  666.                     stepLarge = step;

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

  668.                 }

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

  670.                 {

  671.                     step = 1.0f;

  672.                     stepSmall = 1.0f;

  673.                     stepLarge = 10.0f;

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

  675.                 }

  676.                 else

  677.                 {

  678.                     const float range = max - min;

  679.                     step = range/100.0f;

  680.                     stepSmall = range/1000.0f;

  681.                     stepLarge = range/10.0f;

  682.                 }

  683. 

  684.                 if (LADSPA_IS_PORT_INPUT(portType))

  685.                 {

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

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

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

  689.                     needsCtrlIn = true;

  690.                 }

  691.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  692.                 {

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

  694. 

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

  696.                     {

  697.                         min = 0.0f;

  698.                         max = sampleRate;

  699.                         def = 0.0f;

  700.                         step = 1.0f;

  701.                         stepSmall = 1.0f;

  702.                         stepLarge = 1.0f;

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

  704.                         CARLA_SAFE_ASSERT(fLatencyIndex == -1);

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

  706.                     }

  707.                     else

  708.                     {

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

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

  711.                         needsCtrlOut = true;

  712.                     }

  713.                 }

  714.                 else

  715.                 {

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

  717.                 }

  718. 

  719.                 // extra parameter hints

  720.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

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

  722. 

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

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

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

  726. 

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

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

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

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

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

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

  733. 

  734.                 // Start parameters in their default values

  735.                 fParamBuffers[j] = def;

  736. 

  737.                 try {

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

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

  740. 

  741.                 if (fHandle2 != nullptr)

  742.                 {

  743.                     try {

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

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

  746.                 }

  747.             }

  748.             else

  749.             {

  750.                 // Not Audio or Control

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

  752. 

  753.                 try {

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

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

  756. 

  757.                 if (fHandle2 != nullptr)

  758.                 {

  759.                     try {

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

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

  762.                 }

  763.             }

  764.         }

  765. 

  766.         if (needsCtrlIn)

  767.         {

  768.             portName.clear();

  769. 

  770.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  771.             {

  772.                 portName  = pData->name;

  773.                 portName += ":";

  774.             }

  775. 

  776.             portName += "events-in";

  777.             portName.truncate(portNameSize);

  778. 

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

  780.         }

  781. 

  782.         if (needsCtrlOut)

  783.         {

  784.             portName.clear();

  785. 

  786.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  787.             {

  788.                 portName  = pData->name;

  789.                 portName += ":";

  790.             }

  791. 

  792.             portName += "events-out";

  793.             portName.truncate(portNameSize);

  794. 

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

  796.         }

  797. 

  798.         if (forcedStereoIn || forcedStereoOut)

  799.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  800.         else

  801.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  802. 

  803.         // plugin hints

  804.         pData->hints = 0x0;

  805. 

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

  807.             pData->hints |= PLUGIN_IS_RTSAFE;

  808. 

  809. #ifndef BUILD_BRIDGE

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

  811.             pData->hints |= PLUGIN_CAN_DRYWET;

  812. 

  813.         if (aOuts > 0)

  814.             pData->hints |= PLUGIN_CAN_VOLUME;

  815. 

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

  817.             pData->hints |= PLUGIN_CAN_BALANCE;

  818. #endif

  819. 

  820.         // extra plugin hints

  821.         pData->extraHints = 0x0;

  822. 

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

  824.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  825. 

  826.         // check latency

  827.         if (fLatencyIndex >= 0)

  828.         {

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

  830. 

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

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

  833. 

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

  835.             {

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

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

  838. 

  839.                 try {

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

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

  842.             }

  843. 

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

  845.             {

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

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

  848. 

  849.                 try {

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

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

  852.             }

  853. 

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

  855.             {

  856.                 try {

  857.                     fDescriptor->activate(fHandle);

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

  859.             }

  860. 

  861.             try {

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

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

  864. 

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

  866.             {

  867.                 try {

  868.                     fDescriptor->deactivate(fHandle);

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

  870.             }

  871. 

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

  873. 

  874.             if (latency >= 0)

  875.             {

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

  877. 

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

  879.                 {

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

  881. 

  882.                     pData->latency = ulatency;

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

  884. #ifndef BUILD_BRIDGE

  885.                     pData->recreateLatencyBuffers();

  886. #endif

  887.                 }

  888.             }

  889.             else

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

  891. 

  892.             fLatencyChanged = false;

  893.         }

  894. 

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

  896. 

  897.         if (pData->active)

  898.             activate();

  899. 

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

  901.     }

  902. 

  903.     // -------------------------------------------------------------------

  904.     // Plugin processing

  905. 

  906.     void activate() noexcept override

  907.     {

  908.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  909.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  910. 

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

  912.         {

  913.             try {

  914.                 fDescriptor->activate(fHandle);

  915.             } CARLA_SAFE_EXCEPTION("LADSPA activate");

  916. 

  917.             if (fHandle2 != nullptr)

  918.             {

  919.                 try {

  920.                     fDescriptor->activate(fHandle2);

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

  922.             }

  923.         }

  924.     }

  925. 

  926.     void deactivate() noexcept override

  927.     {

  928.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  929.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  930. 

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

  932.         {

  933.             try {

  934.                 fDescriptor->deactivate(fHandle);

  935.             } CARLA_SAFE_EXCEPTION("LADSPA deactivate");

  936. 

  937.             if (fHandle2 != nullptr)

  938.             {

  939.                 try {

  940.                     fDescriptor->deactivate(fHandle2);

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

  942.             }

  943.         }

  944.     }

  945. 

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

  947.     {

  948.         // --------------------------------------------------------------------------------------------------------

  949.         // Check if active

  950. 

  951.         if (! pData->active)

  952.         {

  953.             // disable any output sound

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

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

  956.             return;

  957.         }

  958. 

  959.         // --------------------------------------------------------------------------------------------------------

  960.         // Check if needs reset

  961. 

  962.         if (pData->needsReset)

  963.         {

  964. #ifndef BUILD_BRIDGE

  965.             if (pData->latency > 0)

  966.             {

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

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

  969.             }

  970. #endif

  971. 

  972.             pData->needsReset = false;

  973.         }

  974. 

  975.         // --------------------------------------------------------------------------------------------------------

  976.         // Event Input and Processing

  977. 

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

  979.         {

  980.             // ----------------------------------------------------------------------------------------------------

  981.             // Event Input (System)

  982. 

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

  984. 

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

  986.             uint32_t timeOffset = 0;

  987. 

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

  989.             {

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

  991. 

  992.                 if (event.time >= frames)

  993.                     continue;

  994. 

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

  996. 

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

  998.                 {

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

  1000.                         timeOffset = event.time;

  1001.                 }

  1002. 

  1003.                 switch (event.type)

  1004.                 {

  1005.                 case kEngineEventTypeNull:

  1006.                     break;

  1007. 

  1008.                 case kEngineEventTypeControl: {

  1009.                     const EngineControlEvent& ctrlEvent(event.ctrl);

  1010. 

  1011.                     switch (ctrlEvent.type)

  1012.                     {

  1013.                     case kEngineControlEventTypeNull:

  1014.                         break;

  1015. 

  1016.                     case kEngineControlEventTypeParameter: {

  1017. #ifndef BUILD_BRIDGE

  1018.                         // Control backend stuff

  1019.                         if (event.channel == pData->ctrlChannel)

  1020.                         {

  1021.                             float value;

  1022. 

  1023.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1024.                             {

  1025.                                 value = ctrlEvent.value;

  1026.                                 setDryWet(value, false, false);

  1027.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1028.                                 break;

  1029.                             }

  1030. 

  1031.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1032.                             {

  1033.                                 value = ctrlEvent.value*127.0f/100.0f;

  1034.                                 setVolume(value, false, false);

  1035.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1036.                                 break;

  1037.                             }

  1038. 

  1039.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1040.                             {

  1041.                                 float left, right;

  1042.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1043. 

  1044.                                 if (value < 0.0f)

  1045.                                 {

  1046.                                     left  = -1.0f;

  1047.                                     right = (value*2.0f)+1.0f;

  1048.                                 }

  1049.                                 else if (value > 0.0f)

  1050.                                 {

  1051.                                     left  = (value*2.0f)-1.0f;

  1052.                                     right = 1.0f;

  1053.                                 }

  1054.                                 else

  1055.                                 {

  1056.                                     left  = -1.0f;

  1057.                                     right = 1.0f;

  1058.                                 }

  1059. 

  1060.                                 setBalanceLeft(left, false, false);

  1061.                                 setBalanceRight(right, false, false);

  1062.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1063.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1064.                                 break;

  1065.                             }

  1066.                         }

  1067. #endif

  1068. 

  1069.                         // Control plugin parameters

  1070.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1071.                         {

  1072.                             if (pData->param.data[k].midiChannel != event.channel)

  1073.                                 continue;

  1074.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1075.                                 continue;

  1076.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1077.                                 continue;

  1078.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1079.                                 continue;

  1080. 

  1081.                             float value;

  1082. 

  1083.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1084.                             {

  1085.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1086.                             }

  1087.                             else

  1088.                             {

  1089.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1090. 

  1091.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1092.                                     value = std::rint(value);

  1093.                             }

  1094. 

  1095.                             setParameterValue(k, value, false, false, false);

  1096.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1097.                             break;

  1098.                         }

  1099. 

  1100.                         break;

  1101.                     } // case kEngineControlEventTypeParameter

  1102. 

  1103.                     case kEngineControlEventTypeMidiBank:

  1104.                     case kEngineControlEventTypeMidiProgram:

  1105.                     case kEngineControlEventTypeAllSoundOff:

  1106.                     case kEngineControlEventTypeAllNotesOff:

  1107.                         break;

  1108.                     } // switch (ctrlEvent.type)

  1109.                     break;

  1110.                 } // case kEngineEventTypeControl

  1111. 

  1112.                 case kEngineEventTypeMidi:

  1113.                     break;

  1114.                 } // switch (event.type)

  1115.             }

  1116. 

  1117.             pData->postRtEvents.trySplice();

  1118. 

  1119.             if (frames > timeOffset)

  1120.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset);

  1121. 

  1122.         } // End of Event Input and Processing

  1123. 

  1124.         // --------------------------------------------------------------------------------------------------------

  1125.         // Plugin processing (no events)

  1126. 

  1127.         else

  1128.         {

  1129.             processSingle(inBuffer, outBuffer, frames, 0);

  1130. 

  1131.         } // End of Plugin processing (no events)

  1132. 

  1133. #ifndef BUILD_BRIDGE

  1134.         // --------------------------------------------------------------------------------------------------------

  1135.         // Latency, save values for next callback

  1136. 

  1137.         if (fLatencyIndex != -1)

  1138.         {

  1139.             if (pData->latency != static_cast<uint32_t>(fParamBuffers[fLatencyIndex]))

  1140.             {

  1141.                 fLatencyChanged = true;

  1142.             }

  1143.             else if (pData->latency > 0)

  1144.             {

  1145.                 if (pData->latency <= frames)

  1146.                 {

  1147.                     for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1148.                         FloatVectorOperations::copy(pData->latencyBuffers[i], inBuffer[i]+(frames-pData->latency), static_cast<int>(pData->latency));

  1149.                 }

  1150.                 else

  1151.                 {

  1152.                     for (uint32_t i=0, j, k; i < pData->audioIn.count; ++i)

  1153.                     {

  1154.                         for (k=0; k < pData->latency-frames; ++k)

  1155.                             pData->latencyBuffers[i][k] = pData->latencyBuffers[i][k+frames];

  1156.                         for (j=0; k < pData->latency; ++j, ++k)

  1157.                             pData->latencyBuffers[i][k] = inBuffer[i][j];

  1158.                     }

  1159.                 }

  1160.             }

  1161.         }

  1162. #endif

  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.     }

  1190. 

  1191.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1192.     {

  1193.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1194. 

  1195.         if (pData->audioIn.count > 0)

  1196.         {

  1197.             CARLA_SAFE_ASSERT_RETURN(inBuffer != nullptr, false);

  1198.         }

  1199.         if (pData->audioOut.count > 0)

  1200.         {

  1201.             CARLA_SAFE_ASSERT_RETURN(outBuffer != nullptr, false);

  1202.         }

  1203. 

  1204.         // --------------------------------------------------------------------------------------------------------

  1205.         // Try lock, silence otherwise

  1206. 

  1207.         if (pData->engine->isOffline())

  1208.         {

  1209.             pData->singleMutex.lock();

  1210.         }

  1211.         else if (! pData->singleMutex.tryLock())

  1212.         {

  1213.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1214.             {

  1215.                 for (uint32_t k=0; k < frames; ++k)

  1216.                     outBuffer[i][k+timeOffset] = 0.0f;

  1217.             }

  1218. 

  1219.             return false;

  1220.         }

  1221. 

  1222.         // --------------------------------------------------------------------------------------------------------

  1223.         // Reset audio buffers

  1224. 

  1225.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1226.             FloatVectorOperations::copy(fAudioInBuffers[i], inBuffer[i]+timeOffset, static_cast<int>(frames));

  1227. 

  1228.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1229.             FloatVectorOperations::clear(fAudioOutBuffers[i], static_cast<int>(frames));

  1230. 

  1231.         // --------------------------------------------------------------------------------------------------------

  1232.         // Run plugin

  1233. 

  1234.         try {

  1235.             fDescriptor->run(fHandle, frames);

  1236.         } CARLA_SAFE_EXCEPTION("LADSPA run");

  1237. 

  1238.         if (fHandle2 != nullptr)

  1239.         {

  1240.             try {

  1241.                 fDescriptor->run(fHandle2, frames);

  1242.             } CARLA_SAFE_EXCEPTION("LADSPA run #2");

  1243.         }

  1244. 

  1245. #ifndef BUILD_BRIDGE

  1246.         // --------------------------------------------------------------------------------------------------------

  1247.         // Post-processing (dry/wet, volume and balance)

  1248. 

  1249.         {

  1250.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && pData->postProc.dryWet != 1.0f;

  1251.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && (pData->postProc.balanceLeft != -1.0f || pData->postProc.balanceRight != 1.0f);

  1252.             const bool isMono    = (pData->audioIn.count == 1);

  1253. 

  1254.             bool isPair;

  1255.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1256. 

  1257.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1258.             {

  1259.                 // Dry/Wet

  1260.                 if (doDryWet)

  1261.                 {

  1262.                     for (uint32_t k=0; k < frames; ++k)

  1263.                     {

  1264.                         if (k < pData->latency)

  1265.                             bufValue = pData->latencyBuffers[isMono ? 0 : i][k];

  1266.                         else if (pData->latency < frames)

  1267.                             bufValue = fAudioInBuffers[isMono ? 0 : i][k-pData->latency];

  1268.                         else

  1269.                             bufValue = fAudioInBuffers[isMono ? 0 : i][k];

  1270. 

  1271.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1272.                     }

  1273.                 }

  1274. 

  1275.                 // Balance

  1276.                 if (doBalance)

  1277.                 {

  1278.                     isPair = (i % 2 == 0);

  1279. 

  1280.                     if (isPair)

  1281.                     {

  1282.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1283.                         FloatVectorOperations::copy(oldBufLeft, fAudioOutBuffers[i], static_cast<int>(frames));

  1284.                     }

  1285. 

  1286.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

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

  1288. 

  1289.                     for (uint32_t k=0; k < frames; ++k)

  1290.                     {

  1291.                         if (isPair)

  1292.                         {

  1293.                             // left

  1294.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1295.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1296.                         }

  1297.                         else

  1298.                         {

  1299.                             // right

  1300.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1301.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1302.                         }

  1303.                     }

  1304.                 }

  1305. 

  1306.                 // Volume (and buffer copy)

  1307.                 {

  1308.                     for (uint32_t k=0; k < frames; ++k)

  1309.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1310.                 }

  1311.             }

  1312. 

  1313.         } // End of Post-processing

  1314. 

  1315. #else // BUILD_BRIDGE

  1316.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1317.         {

  1318.             for (uint32_t k=0; k < frames; ++k)

  1319.                 outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1320.         }

  1321. #endif

  1322. 

  1323.         // --------------------------------------------------------------------------------------------------------

  1324. 

  1325.         pData->singleMutex.unlock();

  1326.         return true;

  1327.     }

  1328. 

  1329.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1330.     {

  1331.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1332.         carla_debug("LadspaPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1333. 

  1334.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1335.         {

  1336.             if (fAudioInBuffers[i] != nullptr)

  1337.                 delete[] fAudioInBuffers[i];

  1338.             fAudioInBuffers[i] = new float[newBufferSize];

  1339.         }

  1340. 

  1341.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1342.         {

  1343.             if (fAudioOutBuffers[i] != nullptr)

  1344.                 delete[] fAudioOutBuffers[i];

  1345.             fAudioOutBuffers[i] = new float[newBufferSize];

  1346.         }

  1347. 

  1348.         if (fHandle2 == nullptr)

  1349.         {

  1350.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1351.             {

  1352.                 CARLA_ASSERT(fAudioInBuffers[i] != nullptr);

  1353. 

  1354.                 try {

  1355.                     fDescriptor->connect_port(fHandle, pData->audioIn.ports[i].rindex, fAudioInBuffers[i]);

  1356.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port audio input");

  1357.             }

  1358. 

  1359.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1360.             {

  1361.                 CARLA_ASSERT(fAudioOutBuffers[i] != nullptr);

  1362. 

  1363.                 try {

  1364.                     fDescriptor->connect_port(fHandle, pData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  1365.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port audio output");

  1366.             }

  1367.         }

  1368.         else

  1369.         {

  1370.             if (pData->audioIn.count > 0)

  1371.             {

  1372.                 CARLA_ASSERT(pData->audioIn.count == 2);

  1373.                 CARLA_ASSERT(fAudioInBuffers[0] != nullptr);

  1374.                 CARLA_ASSERT(fAudioInBuffers[1] != nullptr);

  1375. 

  1376.                 try {

  1377.                     fDescriptor->connect_port(fHandle, pData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  1378.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port audio input #1");

  1379. 

  1380.                 try {

  1381.                     fDescriptor->connect_port(fHandle2, pData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  1382.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port audio input #2");

  1383.             }

  1384. 

  1385.             if (pData->audioOut.count > 0)

  1386.             {

  1387.                 CARLA_ASSERT(pData->audioOut.count == 2);

  1388.                 CARLA_ASSERT(fAudioOutBuffers[0] != nullptr);

  1389.                 CARLA_ASSERT(fAudioOutBuffers[1] != nullptr);

  1390. 

  1391.                 try {

  1392.                     fDescriptor->connect_port(fHandle, pData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  1393.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port audio output #1");

  1394. 

  1395.                 try {

  1396.                     fDescriptor->connect_port(fHandle2, pData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  1397.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port audio output #2");

  1398.             }

  1399.         }

  1400. 

  1401.         carla_debug("LadspaPlugin::bufferSizeChanged(%i) - end", newBufferSize);

  1402.     }

  1403. 

  1404.     void sampleRateChanged(const double newSampleRate) override

  1405.     {

  1406.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  1407.         carla_debug("LadspaPlugin::sampleRateChanged(%g) - start", newSampleRate);

  1408. 

  1409.         // TODO

  1410.         (void)newSampleRate;

  1411. 

  1412.         carla_debug("LadspaPlugin::sampleRateChanged(%g) - end", newSampleRate);

  1413.     }

  1414. 

  1415.     // -------------------------------------------------------------------

  1416.     // Plugin buffers

  1417. 

  1418.     void clearBuffers() noexcept override

  1419.     {

  1420.         carla_debug("LadspaPlugin::clearBuffers() - start");

  1421. 

  1422.         if (fAudioInBuffers != nullptr)

  1423.         {

  1424.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1425.             {

  1426.                 if (fAudioInBuffers[i] != nullptr)

  1427.                 {

  1428.                     delete[] fAudioInBuffers[i];

  1429.                     fAudioInBuffers[i] = nullptr;

  1430.                 }

  1431.             }

  1432. 

  1433.             delete[] fAudioInBuffers;

  1434.             fAudioInBuffers = nullptr;

  1435.         }

  1436. 

  1437.         if (fAudioOutBuffers != nullptr)

  1438.         {

  1439.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1440.             {

  1441.                 if (fAudioOutBuffers[i] != nullptr)

  1442.                 {

  1443.                     delete[] fAudioOutBuffers[i];

  1444.                     fAudioOutBuffers[i] = nullptr;

  1445.                 }

  1446.             }

  1447. 

  1448.             delete[] fAudioOutBuffers;

  1449.             fAudioOutBuffers = nullptr;

  1450.         }

  1451. 

  1452.         if (fParamBuffers != nullptr)

  1453.         {

  1454.             delete[] fParamBuffers;

  1455.             fParamBuffers = nullptr;

  1456.         }

  1457. 

  1458.         CarlaPlugin::clearBuffers();

  1459. 

  1460.         carla_debug("LadspaPlugin::clearBuffers() - end");

  1461.     }

  1462. 

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

  1464. 

  1465.     void* getNativeHandle() const noexcept override

  1466.     {

  1467.         return fHandle;

  1468.     }

  1469. 

  1470.     const void* getNativeDescriptor() const noexcept override

  1471.     {

  1472.         return fDescriptor;

  1473.     }

  1474. 

  1475.     const void* getExtraStuff() const noexcept override

  1476.     {

  1477.         return fRdfDescriptor;

  1478.     }

  1479. 

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

  1481. 

  1482.     bool init(const char* const filename, const char* const name, const char* const label, const LADSPA_RDF_Descriptor* const rdfDescriptor)

  1483.     {

  1484.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  1485. 

  1486.         // ---------------------------------------------------------------

  1487.         // first checks

  1488. 

  1489.         if (pData->client != nullptr)

  1490.         {

  1491.             pData->engine->setLastError("Plugin client is already registered");

  1492.             return false;

  1493.         }

  1494. 

  1495.         if (filename == nullptr || filename[0] == '\0')

  1496.         {

  1497.             pData->engine->setLastError("null filename");

  1498.             return false;

  1499.         }

  1500. 

  1501.         if (label == nullptr || label[0] == '\0')

  1502.         {

  1503.             pData->engine->setLastError("null label");

  1504.             return false;

  1505.         }

  1506. 

  1507.         // ---------------------------------------------------------------

  1508.         // open DLL

  1509. 

  1510.         if (! pData->libOpen(filename))

  1511.         {

  1512.             pData->engine->setLastError(pData->libError(filename));

  1513.             return false;

  1514.         }

  1515. 

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

  1517.         // get DLL main entry

  1518. 

  1519.         const LADSPA_Descriptor_Function descFn = (LADSPA_Descriptor_Function)pData->libSymbol("ladspa_descriptor");

  1520. 

  1521.         if (descFn == nullptr)

  1522.         {

  1523.             pData->engine->setLastError("Could not find the LASDPA Descriptor in the plugin library");

  1524.             return false;

  1525.         }

  1526. 

  1527.         // ---------------------------------------------------------------

  1528.         // get descriptor that matches label

  1529. 

  1530.         ulong i = 0;

  1531. 

  1532.         for (;;)

  1533.         {

  1534.             try {

  1535.                 fDescriptor = descFn(i++);

  1536.             }

  1537.             catch(...) {

  1538.                 carla_stderr2("Caught exception when trying to get LADSPA descriptor");

  1539.                 fDescriptor = nullptr;

  1540.                 break;

  1541.             }

  1542. 

  1543.             if (fDescriptor == nullptr)

  1544.                 break;

  1545. 

  1546.             if (fDescriptor->Label == nullptr || fDescriptor->Label[0] == '\0')

  1547.             {

  1548.                 carla_stderr2("WARNING - Got an invalid label, will not use this plugin");

  1549.                 fDescriptor = nullptr;

  1550.                 break;

  1551.             }

  1552.             if (fDescriptor->run == nullptr)

  1553.             {

  1554.                 carla_stderr2("WARNING - Plugin has no run, cannot use it");

  1555.                 fDescriptor = nullptr;

  1556.                 break;

  1557.             }

  1558. 

  1559.             if (std::strcmp(fDescriptor->Label, label) == 0)

  1560.                 break;

  1561.         }

  1562. 

  1563.         if (fDescriptor == nullptr)

  1564.         {

  1565.             pData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  1566.             return false;

  1567.         }

  1568. 

  1569.         // ---------------------------------------------------------------

  1570.         // get info

  1571. 

  1572.         if (is_ladspa_rdf_descriptor_valid(rdfDescriptor, fDescriptor))

  1573.             fRdfDescriptor = ladspa_rdf_dup(rdfDescriptor);

  1574. 

  1575.         if (name != nullptr && name[0] != '\0')

  1576.             pData->name = pData->engine->getUniquePluginName(name);

  1577.         else if (fRdfDescriptor != nullptr && fRdfDescriptor->Title != nullptr && fRdfDescriptor->Title[0] != '\0')

  1578.             pData->name = pData->engine->getUniquePluginName(fRdfDescriptor->Title);

  1579.         else if (fDescriptor->Name != nullptr && fDescriptor->Name[0] != '\0')

  1580.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Name);

  1581.         else

  1582.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Label);

  1583. 

  1584.         pData->filename = carla_strdup(filename);

  1585. 

  1586.         // ---------------------------------------------------------------

  1587.         // register client

  1588. 

  1589.         pData->client = pData->engine->addClient(this);

  1590. 

  1591.         if (pData->client == nullptr || ! pData->client->isOk())

  1592.         {

  1593.             pData->engine->setLastError("Failed to register plugin client");

  1594.             return false;

  1595.         }

  1596. 

  1597.         // ---------------------------------------------------------------

  1598.         // initialize plugin

  1599. 

  1600.         try {

  1601.             fHandle = fDescriptor->instantiate(fDescriptor, static_cast<ulong>(pData->engine->getSampleRate()));

  1602.         } CARLA_SAFE_EXCEPTION("LADSPA instantiate");

  1603. 

  1604.         if (fHandle == nullptr)

  1605.         {

  1606.             pData->engine->setLastError("Plugin failed to initialize");

  1607.             return false;

  1608.         }

  1609. 

  1610.         // ---------------------------------------------------------------

  1611.         // set default options

  1612. 

  1613. #ifdef __USE_GNU

  1614.         const bool isDssiVst(strcasestr(pData->filename, "dssi-vst") != nullptr);

  1615. #else

  1616.         const bool isDssiVst(std::strstr(pData->filename, "dssi-vst") != nullptr);

  1617. #endif

  1618. 

  1619.         pData->options = 0x0;

  1620. 

  1621.         if (fLatencyIndex >= 0 || isDssiVst)

  1622.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  1623. 

  1624.         if (pData->engine->getOptions().forceStereo)

  1625.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1626. 

  1627.         return true;

  1628.     }

  1629. 

  1630.     // -------------------------------------------------------------------

  1631. 

  1632. private:

  1633.     LADSPA_Handle fHandle;

  1634.     LADSPA_Handle fHandle2;

  1635.     const LADSPA_Descriptor*     fDescriptor;

  1636.     const LADSPA_RDF_Descriptor* fRdfDescriptor;

  1637. 

  1638.     float** fAudioInBuffers;

  1639.     float** fAudioOutBuffers;

  1640.     float*  fParamBuffers;

  1641. 

  1642.     bool    fLatencyChanged;

  1643.     int32_t fLatencyIndex; // -1 if invalid

  1644. 

  1645.     // -------------------------------------------------------------------

  1646. 

  1647.     uint32_t getSafePortCount() const noexcept

  1648.     {

  1649.         if (fDescriptor->PortCount == 0)

  1650.             return 0;

  1651. 

  1652.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortDescriptors != nullptr, 0);

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

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

  1655. 

  1656.         return static_cast<uint32_t>(fDescriptor->PortCount);

  1657.     }

  1658. 

  1659.     bool getSeparatedParameterNameOrUnit(const char* const paramName, char* const strBuf, const bool wantName) const noexcept

  1660.     {

  1661.         if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, true))

  1662.             return true;

  1663.         if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, false))

  1664.             return true;

  1665.         return false;

  1666.     }

  1667. 

  1668.     bool _getSeparatedParameterNameOrUnitImpl(const char* const paramName, char* const strBuf, const bool wantName, const bool useBracket) const noexcept

  1669.     {

  1670.         const char* const sepBracketStart(std::strstr(paramName, useBracket ? " [" : " ("));

  1671. 

  1672.         if (sepBracketStart == nullptr)

  1673.             return false;

  1674. 

  1675.         const char* const sepBracketEnd(std::strstr(sepBracketStart, useBracket ? "]" : ")"));

  1676. 

  1677.         if (sepBracketEnd == nullptr)

  1678.             return false;

  1679. 

  1680.         const size_t unitSize(static_cast<size_t>(sepBracketEnd-sepBracketStart-2));

  1681. 

  1682.         if (unitSize > 7) // very unlikely to have such big unit

  1683.             return false;

  1684. 

  1685.         const size_t sepIndex(std::strlen(paramName)-unitSize-3);

  1686. 

  1687.         // just in case

  1688.         if (sepIndex > STR_MAX)

  1689.             return false;

  1690. 

  1691.         if (wantName)

  1692.         {

  1693.             std::strncpy(strBuf, paramName, sepIndex);

  1694.             strBuf[sepIndex] = '\0';

  1695.         }

  1696.         else

  1697.         {

  1698.             std::strncpy(strBuf, paramName+(sepIndex+2), unitSize);

  1699.             strBuf[unitSize] = '\0';

  1700.         }

  1701. 

  1702.         return true;

  1703.     }

  1704. 

  1705.     // -------------------------------------------------------------------

  1706. 

  1707.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(LadspaPlugin)

  1708. };

  1709. 

  1710. // -------------------------------------------------------------------------------------------------------------------

  1711. 

  1712. CarlaPlugin* CarlaPlugin::newLADSPA(const Initializer& init, const LADSPA_RDF_Descriptor* const rdfDescriptor)

  1713. {

  1714.     carla_debug("CarlaPlugin::newLADSPA({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "}, %p)", init.engine, init.filename, init.name, init.label, init.uniqueId, rdfDescriptor);

  1715. 

  1716.     LadspaPlugin* const plugin(new LadspaPlugin(init.engine, init.id));

  1717. 

  1718.     if (! plugin->init(init.filename, init.name, init.label, rdfDescriptor))

  1719.     {

  1720.         delete plugin;

  1721.         return nullptr;

  1722.     }

  1723. 

  1724.     plugin->reload();

  1725. 

  1726.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && ! plugin->canRunInRack())

  1727.     {

  1728.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo LADSPA plugins, sorry!");

  1729.         delete plugin;

  1730.         return nullptr;

  1731.     }

  1732. 

  1733.     return plugin;

  1734. }

  1735. 

  1736. // -------------------------------------------------------------------------------------------------------------------

  1737. 

  1738. CARLA_BACKEND_END_NAMESPACE