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Carla/source/backend/plugin/CarlaPluginLADSPA.cpp

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  1. /*

  2.  * Carla Plugin, LADSPA implementation

  3.  * Copyright (C) 2011-2017 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 CarlaPluginLADSPA : public CarlaPlugin

  29. {

  30. public:

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

  32.         : CarlaPlugin(engine, id),

  33.           fHandles(),

  34.           fDescriptor(nullptr),

  35.           fRdfDescriptor(nullptr),

  36.           fAudioInBuffers(nullptr),

  37.           fAudioOutBuffers(nullptr),

  38.           fExtraStereoBuffer(),

  39.           fParamBuffers(nullptr),

  40.           fLatencyIndex(-1),

  41.           fForcedStereoIn(false),

  42.           fForcedStereoOut(false),

  43.           fNeedsFixedBuffers(false)

  44.     {

  45.         carla_debug("CarlaPluginLADSPA::CarlaPluginLADSPA(%p, %i)", engine, id);

  46. 

  47.         carla_zeroPointers(fExtraStereoBuffer, 2);

  48.     }

  49. 

  50.     ~CarlaPluginLADSPA() noexcept override

  51.     {

  52.         carla_debug("CarlaPluginLADSPA::~CarlaPluginLADSPA()");

  53. 

  54.         pData->singleMutex.lock();

  55.         pData->masterMutex.lock();

  56. 

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

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

  59. 

  60.         if (pData->active)

  61.         {

  62.             deactivate();

  63.             pData->active = false;

  64.         }

  65. 

  66.         if (fDescriptor != nullptr)

  67.         {

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

  69.             {

  70.                 for (LinkedList<LADSPA_Handle>::Itenerator it = fHandles.begin2(); it.valid(); it.next())

  71.                 {

  72.                     LADSPA_Handle const handle(it.getValue(nullptr));

  73.                     CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  74. 

  75.                     try {

  76.                         fDescriptor->cleanup(handle);

  77.                     } CARLA_SAFE_EXCEPTION("LADSPA cleanup");

  78.                 }

  79.             }

  80. 

  81.             fHandles.clear();

  82.             fDescriptor = nullptr;

  83.         }

  84. 

  85.         if (fRdfDescriptor != nullptr)

  86.         {

  87.             delete fRdfDescriptor;

  88.             fRdfDescriptor = nullptr;

  89.         }

  90. 

  91.         clearBuffers();

  92.     }

  93. 

  94.     // -------------------------------------------------------------------

  95.     // Information (base)

  96. 

  97.     PluginType getType() const noexcept override

  98.     {

  99.         return PLUGIN_LADSPA;

  100.     }

  101. 

  102.     PluginCategory getCategory() const noexcept override

  103.     {

  104.         if (fRdfDescriptor != nullptr)

  105.         {

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

  107. 

  108.             // Specific Types

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

  110.                 return PLUGIN_CATEGORY_DELAY;

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

  112.                 return PLUGIN_CATEGORY_MODULATOR;

  113.             if (category & (LADSPA_PLUGIN_AMPLIFIER))

  114.                 return PLUGIN_CATEGORY_DYNAMICS;

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

  116.                 return PLUGIN_CATEGORY_UTILITY;

  117. 

  118.             // Pre-set LADSPA Types

  119.             if (LADSPA_IS_PLUGIN_DYNAMICS(category))

  120.                 return PLUGIN_CATEGORY_DYNAMICS;

  121.             if (LADSPA_IS_PLUGIN_AMPLITUDE(category))

  122.                 return PLUGIN_CATEGORY_MODULATOR;

  123.             if (LADSPA_IS_PLUGIN_EQ(category))

  124.                 return PLUGIN_CATEGORY_EQ;

  125.             if (LADSPA_IS_PLUGIN_FILTER(category))

  126.                 return PLUGIN_CATEGORY_FILTER;

  127.             if (LADSPA_IS_PLUGIN_FREQUENCY(category))

  128.                 return PLUGIN_CATEGORY_UTILITY;

  129.             if (LADSPA_IS_PLUGIN_SIMULATOR(category))

  130.                 return PLUGIN_CATEGORY_OTHER;

  131.             if (LADSPA_IS_PLUGIN_TIME(category))

  132.                 return PLUGIN_CATEGORY_DELAY;

  133.             if (LADSPA_IS_PLUGIN_GENERATOR(category))

  134.                 return PLUGIN_CATEGORY_SYNTH;

  135.         }

  136. 

  137.         return CarlaPlugin::getCategory();

  138.     }

  139. 

  140.     int64_t getUniqueId() const noexcept override

  141.     {

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

  143. 

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

  145.     }

  146. 

  147.     uint32_t getLatencyInFrames() const noexcept override

  148.     {

  149.         if (fLatencyIndex < 0 || fParamBuffers == nullptr)

  150.             return 0;

  151. 

  152.         const float latency(fParamBuffers[fLatencyIndex]);

  153.         CARLA_SAFE_ASSERT_RETURN(latency >= 0.0f, 0);

  154. 

  155.         return static_cast<uint32_t>(latency);

  156.     }

  157. 

  158.     // -------------------------------------------------------------------

  159.     // Information (count)

  160. 

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

  162.     {

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

  164. 

  165.         if (fRdfDescriptor == nullptr)

  166.             return 0;

  167. 

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

  169.         CARLA_SAFE_ASSERT_RETURN(rindex >= 0, 0);

  170. 

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

  172.             return 0;

  173. 

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

  175.         return static_cast<uint32_t>(port.ScalePointCount);

  176.     }

  177. 

  178.     // -------------------------------------------------------------------

  179.     // Information (current data)

  180. 

  181.     // nothing

  182. 

  183.     // -------------------------------------------------------------------

  184.     // Information (per-plugin data)

  185. 

  186.     uint getOptionsAvailable() const noexcept override

  187.     {

  188.         uint options = 0x0;

  189. 

  190.         // can't disable fixed buffers if using latency

  191.         if (fLatencyIndex == -1 && ! fNeedsFixedBuffers)

  192.             options |= PLUGIN_OPTION_FIXED_BUFFERS;

  193. 

  194.         // can't disable forced stereo if enabled in the engine

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

  196.             pass();

  197.         // if inputs or outputs are just 1, then yes we can force stereo

  198.         else if (pData->audioIn.count == 1 || pData->audioOut.count == 1 || fForcedStereoIn || fForcedStereoOut)

  199.             options |= PLUGIN_OPTION_FORCE_STEREO;

  200. 

  201.         return options;

  202.     }

  203. 

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

  205.     {

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

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

  208. 

  209.         // bad plugins might have set output values out of bounds

  210.         if (pData->param.data[parameterId].type == PARAMETER_OUTPUT)

  211.             return pData->param.ranges[parameterId].getFixedValue(fParamBuffers[parameterId]);

  212. 

  213.         // not output, should be fine

  214.         return fParamBuffers[parameterId];

  215.     }

  216. 

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

  218.     {

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

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

  221. 

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

  223.         CARLA_SAFE_ASSERT_RETURN(rindex >= 0,                                              0.0f);

  224.         CARLA_SAFE_ASSERT_RETURN(rindex < static_cast<int32_t>(fRdfDescriptor->PortCount), 0.0f);

  225. 

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

  227.         CARLA_SAFE_ASSERT_RETURN(scalePointId < port.ScalePointCount, 0.0f);

  228. 

  229.         const LADSPA_RDF_ScalePoint& scalePoint(port.ScalePoints[scalePointId]);

  230.         return pData->param.ranges[parameterId].getFixedValue(scalePoint.Value);

  231.     }

  232. 

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

  234.     {

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

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

  237. 

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

  239.     }

  240. 

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

  242.     {

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

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

  245. 

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

  247.         {

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

  249.             return;

  250.         }

  251. 

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

  253.     }

  254. 

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

  256.     {

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

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

  259. 

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

  261.     }

  262. 

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

  264.     {

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

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

  267. 

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

  269.         {

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

  271.             return;

  272.         }

  273. 

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

  275.     }

  276. 

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

  278.     {

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

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

  281. 

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

  283.         CARLA_SAFE_ASSERT_RETURN(rindex >= 0,                                           nullStrBuf(strBuf));

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

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

  286. 

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

  288.             return;

  289. 

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

  291.     }

  292. 

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

  294.     {

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

  296. 

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

  298.         CARLA_SAFE_ASSERT_RETURN(rindex >= 0, nullStrBuf(strBuf));

  299. 

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

  301.         {

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

  303. 

  304.             if (LADSPA_PORT_HAS_UNIT(port.Hints))

  305.             {

  306.                 switch (port.Unit)

  307.                 {

  308.                 case LADSPA_UNIT_DB:

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

  310.                     return;

  311.                 case LADSPA_UNIT_COEF:

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

  313.                     return;

  314.                 case LADSPA_UNIT_HZ:

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

  316.                     return;

  317.                 case LADSPA_UNIT_S:

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

  319.                     return;

  320.                 case LADSPA_UNIT_MS:

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

  322.                     return;

  323.                 case LADSPA_UNIT_MIN:

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

  325.                     return;

  326.                 }

  327.             }

  328.         }

  329. 

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

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

  332. 

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

  334.             return;

  335. 

  336.         nullStrBuf(strBuf);

  337.     }

  338. 

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

  340.     {

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

  342. 

  343.         if (fRdfDescriptor == nullptr)

  344.             return nullStrBuf(strBuf);

  345. 

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

  347.         CARLA_SAFE_ASSERT_RETURN(rindex >= 0, nullStrBuf(strBuf));

  348. 

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

  350.             return nullStrBuf(strBuf);

  351. 

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

  353. 

  354.         if (! LADSPA_PORT_HAS_LABEL(port.Hints))

  355.             return nullStrBuf(strBuf);

  356. 

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

  358. 

  359.         std::strncpy(strBuf, port.Label, STR_MAX);

  360.     }

  361. 

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

  363.     {

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

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

  366. 

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

  368.         CARLA_SAFE_ASSERT_RETURN(rindex >= 0,                                              nullStrBuf(strBuf));

  369.         CARLA_SAFE_ASSERT_RETURN(rindex < static_cast<int32_t>(fRdfDescriptor->PortCount), nullStrBuf(strBuf));

  370. 

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

  372.         CARLA_SAFE_ASSERT_RETURN(scalePointId < port.ScalePointCount, nullStrBuf(strBuf));

  373. 

  374.         const LADSPA_RDF_ScalePoint& scalePoint(port.ScalePoints[scalePointId]);

  375.         CARLA_SAFE_ASSERT_RETURN(scalePoint.Label != nullptr, nullStrBuf(strBuf));

  376. 

  377.         std::strncpy(strBuf, scalePoint.Label, STR_MAX);

  378.     }

  379. 

  380.     // -------------------------------------------------------------------

  381.     // Set data (state)

  382. 

  383.     // nothing

  384. 

  385.     // -------------------------------------------------------------------

  386.     // Set data (internal stuff)

  387. 

  388.     // nothing

  389. 

  390.     // -------------------------------------------------------------------

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

  392. 

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

  394.     {

  395.         CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr,);

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

  397. 

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

  399.         fParamBuffers[parameterId] = fixedValue;

  400. 

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

  402.     }

  403. 

  404.     // -------------------------------------------------------------------

  405.     // Misc

  406. 

  407.     // nothing

  408. 

  409.     // -------------------------------------------------------------------

  410.     // Plugin state

  411. 

  412.     void reload() override

  413.     {

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

  415.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  416.         CARLA_SAFE_ASSERT_RETURN(fHandles.count() > 0,);

  417.         carla_debug("CarlaPluginLADSPA::reload() - start");

  418. 

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

  420. 

  421.         // Safely disable plugin for reload

  422.         const ScopedDisabler sd(this);

  423. 

  424.         if (pData->active)

  425.             deactivate();

  426. 

  427.         clearBuffers();

  428. 

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

  430.         const uint32_t portCount(getSafePortCount());

  431. 

  432.         uint32_t aIns, aOuts, params;

  433.         aIns = aOuts = params = 0;

  434. 

  435.         bool forcedStereoIn, forcedStereoOut;

  436.         forcedStereoIn = forcedStereoOut = false;

  437. 

  438.         bool needsCtrlIn, needsCtrlOut;

  439.         needsCtrlIn = needsCtrlOut = false;

  440. 

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

  442.         {

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

  444. 

  445.             if (LADSPA_IS_PORT_AUDIO(portType))

  446.             {

  447.                 if (LADSPA_IS_PORT_INPUT(portType))

  448.                     aIns += 1;

  449.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  450.                     aOuts += 1;

  451.             }

  452.             else if (LADSPA_IS_PORT_CONTROL(portType))

  453.                 params += 1;

  454.         }

  455. 

  456.         if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  457.         {

  458.             if ((aIns == 1 || aOuts == 1) && fHandles.count() == 1 && addInstance())

  459.             {

  460.                 if (aIns == 1)

  461.                 {

  462.                     aIns = 2;

  463.                     forcedStereoIn = true;

  464.                 }

  465.                 if (aOuts == 1)

  466.                 {

  467.                     aOuts = 2;

  468.                     forcedStereoOut = true;

  469.                 }

  470.             }

  471.         }

  472. 

  473.         if (aIns > 0)

  474.         {

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

  476.             fAudioInBuffers = new float*[aIns];

  477. 

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

  479.                 fAudioInBuffers[i] = nullptr;

  480.         }

  481. 

  482.         if (aOuts > 0)

  483.         {

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

  485.             fAudioOutBuffers = new float*[aOuts];

  486.             needsCtrlIn = true;

  487. 

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

  489.                 fAudioOutBuffers[i] = nullptr;

  490.         }

  491. 

  492.         if (params > 0)

  493.         {

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

  495. 

  496.             fParamBuffers = new float[params];

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

  498.         }

  499. 

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

  501.         CarlaString portName;

  502. 

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

  504.         {

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

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

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

  508. 

  509.             if (LADSPA_IS_PORT_AUDIO(portType))

  510.             {

  511.                 portName.clear();

  512. 

  513.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  514.                 {

  515.                     portName  = pData->name;

  516.                     portName += ":";

  517.                 }

  518. 

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

  520.                 {

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

  522.                 }

  523.                 else

  524.                 {

  525.                     if (LADSPA_IS_PORT_INPUT(portType))

  526.                     {

  527.                         if (aIns > 1)

  528.                         {

  529.                             portName += "audio-in_";

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

  531.                         }

  532.                         else

  533.                             portName += "audio-in";

  534.                     }

  535.                     else

  536.                     {

  537.                         if (aOuts > 1)

  538.                         {

  539.                             portName += "audio-out_";

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

  541.                         }

  542.                         else

  543.                             portName += "audio-out";

  544.                     }

  545.                 }

  546. 

  547.                 portName.truncate(portNameSize);

  548. 

  549.                 if (LADSPA_IS_PORT_INPUT(portType))

  550.                 {

  551.                     const uint32_t j = iAudioIn++;

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

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

  554. 

  555.                     if (forcedStereoIn)

  556.                     {

  557.                         portName += "_2";

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

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

  560.                     }

  561.                 }

  562.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  563.                 {

  564.                     const uint32_t j = iAudioOut++;

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

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

  567. 

  568.                     if (forcedStereoOut)

  569.                     {

  570.                         portName += "_2";

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

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

  573.                     }

  574.                 }

  575.                 else

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

  577.             }

  578.             else if (LADSPA_IS_PORT_CONTROL(portType))

  579.             {

  580.                 const uint32_t j = iCtrl++;

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

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

  583. 

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

  585. 

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

  587. 

  588.                 // min value

  589.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  590.                     min = portRangeHints.LowerBound;

  591.                 else

  592.                     min = 0.0f;

  593. 

  594.                 // max value

  595.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  596.                     max = portRangeHints.UpperBound;

  597.                 else

  598.                     max = 1.0f;

  599. 

  600.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  601.                 {

  602.                     min *= sampleRate;

  603.                     max *= sampleRate;

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

  605.                 }

  606. 

  607.                 if (min >= max)

  608.                 {

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

  610.                     max = min + 0.1f;

  611.                 }

  612. 

  613.                 // default value

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

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

  616.                 else

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

  618. 

  619.                 if (def < min)

  620.                     def = min;

  621.                 else if (def > max)

  622.                     def = max;

  623. 

  624.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  625.                 {

  626.                     step = max - min;

  627.                     stepSmall = step;

  628.                     stepLarge = step;

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

  630.                 }

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

  632.                 {

  633.                     step = 1.0f;

  634.                     stepSmall = 1.0f;

  635.                     stepLarge = 10.0f;

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

  637.                 }

  638.                 else

  639.                 {

  640.                     const float range = max - min;

  641.                     step = range/100.0f;

  642.                     stepSmall = range/1000.0f;

  643.                     stepLarge = range/10.0f;

  644.                 }

  645. 

  646.                 if (LADSPA_IS_PORT_INPUT(portType))

  647.                 {

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

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

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

  651.                     needsCtrlIn = true;

  652.                 }

  653.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  654.                 {

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

  656. 

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

  658.                     {

  659.                         min = 0.0f;

  660.                         max = sampleRate;

  661.                         def = 0.0f;

  662.                         step = 1.0f;

  663.                         stepSmall = 1.0f;

  664.                         stepLarge = 1.0f;

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

  666.                         CARLA_SAFE_ASSERT_INT2(fLatencyIndex == static_cast<int32_t>(j), fLatencyIndex, j);

  667.                     }

  668.                     else

  669.                     {

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

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

  672.                         needsCtrlOut = true;

  673.                     }

  674.                 }

  675.                 else

  676.                 {

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

  678.                 }

  679. 

  680.                 // extra parameter hints

  681.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

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

  683. 

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

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

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

  687. 

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

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

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

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

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

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

  694. 

  695.                 // Start parameters in their default values

  696.                 fParamBuffers[j] = def;

  697. 

  698.                 for (LinkedList<LADSPA_Handle>::Itenerator it = fHandles.begin2(); it.valid(); it.next())

  699.                 {

  700.                     LADSPA_Handle const handle(it.getValue(nullptr));

  701.                     CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  702. 

  703.                     try {

  704.                         fDescriptor->connect_port(handle, i, &fParamBuffers[j]);

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

  706.                 }

  707.             }

  708.             else

  709.             {

  710.                 // Not Audio or Control

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

  712. 

  713.                 for (LinkedList<LADSPA_Handle>::Itenerator it = fHandles.begin2(); it.valid(); it.next())

  714.                 {

  715.                     LADSPA_Handle const handle(it.getValue(nullptr));

  716.                     CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  717. 

  718.                     try {

  719.                         fDescriptor->connect_port(handle, i, nullptr);

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

  721.                 }

  722.             }

  723.         }

  724. 

  725.         if (needsCtrlIn)

  726.         {

  727.             portName.clear();

  728. 

  729.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  730.             {

  731.                 portName  = pData->name;

  732.                 portName += ":";

  733.             }

  734. 

  735.             portName += "events-in";

  736.             portName.truncate(portNameSize);

  737. 

  738.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true, 0);

  739.         }

  740. 

  741.         if (needsCtrlOut)

  742.         {

  743.             portName.clear();

  744. 

  745.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  746.             {

  747.                 portName  = pData->name;

  748.                 portName += ":";

  749.             }

  750. 

  751.             portName += "events-out";

  752.             portName.truncate(portNameSize);

  753. 

  754.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false, 0);

  755.         }

  756. 

  757.         if (forcedStereoIn || forcedStereoOut)

  758.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  759.         else

  760.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  761. 

  762.         // plugin hints

  763.         pData->hints = 0x0;

  764. 

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

  766.             pData->hints |= PLUGIN_IS_RTSAFE;

  767. 

  768. #ifndef BUILD_BRIDGE

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

  770.             pData->hints |= PLUGIN_CAN_DRYWET;

  771. 

  772.         if (aOuts > 0)

  773.             pData->hints |= PLUGIN_CAN_VOLUME;

  774. 

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

  776.             pData->hints |= PLUGIN_CAN_BALANCE;

  777. #endif

  778. 

  779.         // extra plugin hints

  780.         pData->extraHints  = 0x0;

  781.         pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  782. 

  783.         // check initial latency

  784.         findInitialLatencyValue(aIns, aOuts);

  785. 

  786.         fForcedStereoIn  = forcedStereoIn;

  787.         fForcedStereoOut = forcedStereoOut;

  788. 

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

  790. 

  791.         if (pData->active)

  792.             activate();

  793. 

  794.         carla_debug("CarlaPluginLADSPA::reload() - end");

  795.     }

  796. 

  797.     void findInitialLatencyValue(const uint32_t aIns, const uint32_t aOuts) const

  798.     {

  799.         if (fLatencyIndex < 0 || fHandles.count() == 0)

  800.             return;

  801. 

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

  803.         const LADSPA_Handle handle(fHandles.getFirst(nullptr));

  804.         CARLA_SAFE_ASSERT_RETURN(handle != nullptr,);

  805. 

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

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

  808. 

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

  810.         {

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

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

  813. 

  814.             try {

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

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

  817.         }

  818. 

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

  820.         {

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

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

  823. 

  824.             try {

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

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

  827.         }

  828. 

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

  830.         {

  831.             try {

  832.                 fDescriptor->activate(handle);

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

  834.         }

  835. 

  836.         try {

  837.             fDescriptor->run(handle, 2);

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

  839. 

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

  841.         {

  842.             try {

  843.                 fDescriptor->deactivate(handle);

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

  845.         }

  846. 

  847.         // done, let's get the value

  848.         if (const uint32_t latency = getLatencyInFrames())

  849.         {

  850.             pData->client->setLatency(latency);

  851. #ifndef BUILD_BRIDGE

  852.             pData->latency.recreateBuffers(std::max(aIns, aOuts), latency);

  853. #endif

  854.         }

  855.     }

  856. 

  857.     // -------------------------------------------------------------------

  858.     // Plugin processing

  859. 

  860.     void activate() noexcept override

  861.     {

  862.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  863. 

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

  865.         {

  866.             for (LinkedList<LADSPA_Handle>::Itenerator it = fHandles.begin2(); it.valid(); it.next())

  867.             {

  868.                 LADSPA_Handle const handle(it.getValue(nullptr));

  869.                 CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  870. 

  871.                 try {

  872.                     fDescriptor->activate(handle);

  873.                 } CARLA_SAFE_EXCEPTION("LADSPA activate");

  874.             }

  875.         }

  876.     }

  877. 

  878.     void deactivate() noexcept override

  879.     {

  880.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  881. 

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

  883.         {

  884.             for (LinkedList<LADSPA_Handle>::Itenerator it = fHandles.begin2(); it.valid(); it.next())

  885.             {

  886.                 LADSPA_Handle const handle(it.getValue(nullptr));

  887.                 CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  888. 

  889.                 try {

  890.                     fDescriptor->deactivate(handle);

  891.                 } CARLA_SAFE_EXCEPTION("LADSPA deactivate");

  892.             }

  893.         }

  894.     }

  895. 

  896.     void process(const float** const audioIn, float** const audioOut, const float** const, float** const, const uint32_t frames) override

  897.     {

  898.         // --------------------------------------------------------------------------------------------------------

  899.         // Check if active

  900. 

  901.         if (! pData->active)

  902.         {

  903.             // disable any output sound

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

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

  906.             return;

  907.         }

  908. 

  909.         // --------------------------------------------------------------------------------------------------------

  910.         // Check if needs reset

  911. 

  912.         if (pData->needsReset)

  913.         {

  914.             // nothing to do

  915.             pData->needsReset = false;

  916.         }

  917. 

  918.         // --------------------------------------------------------------------------------------------------------

  919.         // Event Input and Processing

  920. 

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

  922.         {

  923.             // ----------------------------------------------------------------------------------------------------

  924.             // Event Input (System)

  925. 

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

  927. 

  928.             uint32_t timeOffset = 0;

  929. 

  930.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  931.             {

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

  933. 

  934.                 if (event.time >= frames)

  935.                     continue;

  936. 

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

  938. 

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

  940.                 {

  941.                     if (processSingle(audioIn, audioOut, event.time - timeOffset, timeOffset))

  942.                         timeOffset = event.time;

  943.                 }

  944. 

  945.                 switch (event.type)

  946.                 {

  947.                 case kEngineEventTypeNull:

  948.                     break;

  949. 

  950.                 case kEngineEventTypeControl: {

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

  952. 

  953.                     switch (ctrlEvent.type)

  954.                     {

  955.                     case kEngineControlEventTypeNull:

  956.                         break;

  957. 

  958.                     case kEngineControlEventTypeParameter: {

  959. #ifndef BUILD_BRIDGE

  960.                         // Control backend stuff

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

  962.                         {

  963.                             float value;

  964. 

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

  966.                             {

  967.                                 value = ctrlEvent.value;

  968.                                 setDryWet(value, false, false);

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

  970.                             }

  971. 

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

  973.                             {

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

  975.                                 setVolume(value, false, false);

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

  977.                             }

  978. 

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

  980.                             {

  981.                                 float left, right;

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

  983. 

  984.                                 if (value < 0.0f)

  985.                                 {

  986.                                     left  = -1.0f;

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

  988.                                 }

  989.                                 else if (value > 0.0f)

  990.                                 {

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

  992.                                     right = 1.0f;

  993.                                 }

  994.                                 else

  995.                                 {

  996.                                     left  = -1.0f;

  997.                                     right = 1.0f;

  998.                                 }

  999. 

  1000.                                 setBalanceLeft(left, false, false);

  1001.                                 setBalanceRight(right, false, false);

  1002.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1003.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1004.                             }

  1005.                         }

  1006. #endif

  1007.                         // Control plugin parameters

  1008.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1009.                         {

  1010.                             if (pData->param.data[k].midiChannel != event.channel)

  1011.                                 continue;

  1012.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1013.                                 continue;

  1014.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1015.                                 continue;

  1016.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1017.                                 continue;

  1018. 

  1019.                             float value;

  1020. 

  1021.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1022.                             {

  1023.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1024.                             }

  1025.                             else

  1026.                             {

  1027.                                 if (pData->param.data[k].hints & PARAMETER_IS_LOGARITHMIC)

  1028.                                     value = pData->param.ranges[k].getUnnormalizedLogValue(ctrlEvent.value);

  1029.                                 else

  1030.                                     value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1031. 

  1032.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1033.                                     value = std::rint(value);

  1034.                             }

  1035. 

  1036.                             setParameterValue(k, value, false, false, false);

  1037.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1038.                         }

  1039. 

  1040.                         break;

  1041.                     } // case kEngineControlEventTypeParameter

  1042. 

  1043.                     case kEngineControlEventTypeMidiBank:

  1044.                     case kEngineControlEventTypeMidiProgram:

  1045.                     case kEngineControlEventTypeAllSoundOff:

  1046.                     case kEngineControlEventTypeAllNotesOff:

  1047.                         break;

  1048.                     } // switch (ctrlEvent.type)

  1049.                     break;

  1050.                 } // case kEngineEventTypeControl

  1051. 

  1052.                 case kEngineEventTypeMidi:

  1053.                     break;

  1054.                 } // switch (event.type)

  1055.             }

  1056. 

  1057.             pData->postRtEvents.trySplice();

  1058. 

  1059.             if (frames > timeOffset)

  1060.                 processSingle(audioIn, audioOut, frames - timeOffset, timeOffset);

  1061. 

  1062.         } // End of Event Input and Processing

  1063. 

  1064.         // --------------------------------------------------------------------------------------------------------

  1065.         // Plugin processing (no events)

  1066. 

  1067.         else

  1068.         {

  1069.             processSingle(audioIn, audioOut, frames, 0);

  1070. 

  1071.         } // End of Plugin processing (no events)

  1072. 

  1073.         // --------------------------------------------------------------------------------------------------------

  1074.         // Control Output

  1075. 

  1076.         if (pData->event.portOut != nullptr)

  1077.         {

  1078.             uint8_t  channel;

  1079.             uint16_t param;

  1080.             float    value;

  1081. 

  1082.             for (uint32_t k=0; k < pData->param.count; ++k)

  1083.             {

  1084.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1085.                     continue;

  1086. 

  1087.                 pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1088. 

  1089.                 if (pData->param.data[k].midiCC > 0)

  1090.                 {

  1091.                     channel = pData->param.data[k].midiChannel;

  1092.                     param   = static_cast<uint16_t>(pData->param.data[k].midiCC);

  1093.                     value   = pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]);

  1094.                     pData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value);

  1095.                 }

  1096.             }

  1097.         } // End of Control Output

  1098.     }

  1099. 

  1100.     bool processSingle(const float** const audioIn, float** const audioOut, const uint32_t frames,

  1101.                        const uint32_t timeOffset)

  1102.     {

  1103.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1104. 

  1105.         if (pData->audioIn.count > 0)

  1106.         {

  1107.             CARLA_SAFE_ASSERT_RETURN(audioIn != nullptr, false);

  1108.         }

  1109.         if (pData->audioOut.count > 0)

  1110.         {

  1111.             CARLA_SAFE_ASSERT_RETURN(audioOut != nullptr, false);

  1112.         }

  1113. 

  1114.         // --------------------------------------------------------------------------------------------------------

  1115.         // Try lock, silence otherwise

  1116. 

  1117.         if (pData->engine->isOffline())

  1118.         {

  1119.             pData->singleMutex.lock();

  1120.         }

  1121.         else if (! pData->singleMutex.tryLock())

  1122.         {

  1123.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1124.             {

  1125.                 for (uint32_t k=0; k < frames; ++k)

  1126.                     audioOut[i][k+timeOffset] = 0.0f;

  1127.             }

  1128. 

  1129.             return false;

  1130.         }

  1131. 

  1132.         const int iframes(static_cast<int>(frames));

  1133. 

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

  1135.         // Set audio buffers

  1136. 

  1137.         const bool customMonoOut   = pData->audioOut.count == 2 && fForcedStereoOut && ! fForcedStereoIn;

  1138.         const bool customStereoOut = pData->audioOut.count == 2 && fForcedStereoIn  && ! fForcedStereoOut;

  1139. 

  1140.         if (! customMonoOut)

  1141.         {

  1142.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1143.                 FloatVectorOperations::clear(fAudioOutBuffers[i], iframes);

  1144.         }

  1145. 

  1146.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1147.             FloatVectorOperations::copy(fAudioInBuffers[i], audioIn[i]+timeOffset, iframes);

  1148. 

  1149.         // --------------------------------------------------------------------------------------------------------

  1150.         // Run plugin

  1151. 

  1152.         uint instn = 0;

  1153.         for (LinkedList<LADSPA_Handle>::Itenerator it = fHandles.begin2(); it.valid(); it.next(), ++instn)

  1154.         {

  1155.             LADSPA_Handle const handle(it.getValue(nullptr));

  1156.             CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  1157. 

  1158.             // ----------------------------------------------------------------------------------------------------

  1159.             // Mixdown for forced stereo

  1160. 

  1161.             if (customMonoOut)

  1162.                 FloatVectorOperations::clear(fAudioOutBuffers[instn], iframes);

  1163. 

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

  1165.             // Run it

  1166. 

  1167.             try {

  1168.                 fDescriptor->run(handle, frames);

  1169.             } CARLA_SAFE_EXCEPTION("LADSPA run");

  1170. 

  1171.             // ----------------------------------------------------------------------------------------------------

  1172.             // Mixdown for forced stereo

  1173. 

  1174.             if (customMonoOut)

  1175.                 FloatVectorOperations::multiply(fAudioOutBuffers[instn], 0.5f, iframes);

  1176.             else if (customStereoOut)

  1177.                 FloatVectorOperations::copy(fExtraStereoBuffer[instn], fAudioOutBuffers[instn], iframes);

  1178.         }

  1179. 

  1180.         if (customStereoOut)

  1181.         {

  1182.             FloatVectorOperations::copy(fAudioOutBuffers[0], fExtraStereoBuffer[0], iframes);

  1183.             FloatVectorOperations::copy(fAudioOutBuffers[1], fExtraStereoBuffer[1], iframes);

  1184.         }

  1185. 

  1186. #ifndef BUILD_BRIDGE

  1187.         // --------------------------------------------------------------------------------------------------------

  1188.         // Post-processing (dry/wet, volume and balance)

  1189. 

  1190.         {

  1191.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && carla_isNotEqual(pData->postProc.dryWet, 1.0f);

  1192.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_isEqual(pData->postProc.balanceLeft, -1.0f) && carla_isEqual(pData->postProc.balanceRight, 1.0f));

  1193.             const bool isMono    = (pData->audioIn.count == 1);

  1194. 

  1195.             bool isPair;

  1196.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1197. 

  1198.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1199.             {

  1200.                 // Dry/Wet

  1201.                 if (doDryWet)

  1202.                 {

  1203.                     const uint32_t c = isMono ? 0 : i;

  1204. 

  1205.                     for (uint32_t k=0; k < frames; ++k)

  1206.                     {

  1207.                         if (k < pData->latency.frames)

  1208.                             bufValue = pData->latency.buffers[c][k];

  1209.                         else if (pData->latency.frames < frames)

  1210.                             bufValue = fAudioInBuffers[c][k-pData->latency.frames];

  1211.                         else

  1212.                             bufValue = fAudioInBuffers[c][k];

  1213. 

  1214.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1215.                     }

  1216.                 }

  1217. 

  1218.                 // Balance

  1219.                 if (doBalance)

  1220.                 {

  1221.                     isPair = (i % 2 == 0);

  1222. 

  1223.                     if (isPair)

  1224.                     {

  1225.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1226.                         FloatVectorOperations::copy(oldBufLeft, fAudioOutBuffers[i], iframes);

  1227.                     }

  1228. 

  1229.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1230.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1231. 

  1232.                     for (uint32_t k=0; k < frames; ++k)

  1233.                     {

  1234.                         if (isPair)

  1235.                         {

  1236.                             // left

  1237.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1238.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1239.                         }

  1240.                         else

  1241.                         {

  1242.                             // right

  1243.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1244.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1245.                         }

  1246.                     }

  1247.                 }

  1248. 

  1249.                 // Volume (and buffer copy)

  1250.                 {

  1251.                     for (uint32_t k=0; k < frames; ++k)

  1252.                         audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1253.                 }

  1254.             }

  1255. 

  1256.         } // End of Post-processing

  1257. 

  1258.         // --------------------------------------------------------------------------------------------------------

  1259.         // Save latency values for next callback

  1260. 

  1261.         if (const uint32_t latframes = pData->latency.frames)

  1262.         {

  1263.             CARLA_SAFE_ASSERT(timeOffset == 0);

  1264. 

  1265.             if (latframes <= frames)

  1266.             {

  1267.                 for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1268.                     FloatVectorOperations::copy(pData->latency.buffers[i], audioIn[i]+(frames-latframes), static_cast<int>(latframes));

  1269.             }

  1270.             else

  1271.             {

  1272.                 const uint32_t diff = pData->latency.frames-frames;

  1273. 

  1274.                 for (uint32_t i=0, k; i<pData->audioIn.count; ++i)

  1275.                 {

  1276.                     // push back buffer by 'frames'

  1277.                     for (k=0; k < diff; ++k)

  1278.                         pData->latency.buffers[i][k] = pData->latency.buffers[i][k+frames];

  1279. 

  1280.                     // put current input at the end

  1281.                     for (uint32_t j=0; k < latframes; ++j, ++k)

  1282.                         pData->latency.buffers[i][k] = audioIn[i][j];

  1283.                 }

  1284.             }

  1285.         }

  1286. 

  1287. #else // BUILD_BRIDGE

  1288.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1289.         {

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

  1291.                 audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1292.         }

  1293. #endif

  1294. 

  1295.         // --------------------------------------------------------------------------------------------------------

  1296. 

  1297.         pData->singleMutex.unlock();

  1298.         return true;

  1299.     }

  1300. 

  1301.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1302.     {

  1303.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1304.         carla_debug("CarlaPluginLADSPA::bufferSizeChanged(%i) - start", newBufferSize);

  1305. 

  1306.         const int iBufferSize(static_cast<int>(newBufferSize));

  1307. 

  1308.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1309.         {

  1310.             if (fAudioInBuffers[i] != nullptr)

  1311.                 delete[] fAudioInBuffers[i];

  1312. 

  1313.             fAudioInBuffers[i] = new float[newBufferSize];

  1314.             FloatVectorOperations::clear(fAudioInBuffers[i], iBufferSize);

  1315.         }

  1316. 

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

  1318.         {

  1319.             if (fAudioOutBuffers[i] != nullptr)

  1320.                 delete[] fAudioOutBuffers[i];

  1321. 

  1322.             fAudioOutBuffers[i] = new float[newBufferSize];

  1323.             FloatVectorOperations::clear(fAudioOutBuffers[i], iBufferSize);

  1324.         }

  1325. 

  1326.         if (fExtraStereoBuffer[0] != nullptr)

  1327.         {

  1328.             delete[] fExtraStereoBuffer[0];

  1329.             fExtraStereoBuffer[0] = nullptr;

  1330.         }

  1331. 

  1332.         if (fExtraStereoBuffer[1] != nullptr)

  1333.         {

  1334.             delete[] fExtraStereoBuffer[1];

  1335.             fExtraStereoBuffer[1] = nullptr;

  1336.         }

  1337. 

  1338.         if (fForcedStereoIn && pData->audioOut.count == 2)

  1339.         {

  1340.             fExtraStereoBuffer[0] = new float[newBufferSize];

  1341.             fExtraStereoBuffer[1] = new float[newBufferSize];

  1342.             FloatVectorOperations::clear(fExtraStereoBuffer[0], iBufferSize);

  1343.             FloatVectorOperations::clear(fExtraStereoBuffer[1], iBufferSize);

  1344.         }

  1345. 

  1346.         reconnectAudioPorts();

  1347. 

  1348.         carla_debug("CarlaPluginLADSPA::bufferSizeChanged(%i) - end", newBufferSize);

  1349.     }

  1350. 

  1351.     void sampleRateChanged(const double newSampleRate) override

  1352.     {

  1353.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  1354.         carla_stdout("CarlaPluginLADSPA::sampleRateChanged(%g) - start", newSampleRate);

  1355. 

  1356.         if (pData->active)

  1357.             deactivate();

  1358. 

  1359.         const std::size_t instanceCount(fHandles.count());

  1360. 

  1361.         if (fDescriptor->cleanup == nullptr)

  1362.         {

  1363.             for (LinkedList<LADSPA_Handle>::Itenerator it = fHandles.begin2(); it.valid(); it.next())

  1364.             {

  1365.                 LADSPA_Handle const handle(it.getValue(nullptr));

  1366.                 CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  1367. 

  1368.                 try {

  1369.                     fDescriptor->cleanup(handle);

  1370.                 } CARLA_SAFE_EXCEPTION("LADSPA cleanup");

  1371.             }

  1372.         }

  1373. 

  1374.         fHandles.clear();

  1375. 

  1376.         for (std::size_t i=0; i<instanceCount; ++i)

  1377.             addInstance();

  1378. 

  1379.         reconnectAudioPorts();

  1380. 

  1381.         if (pData->active)

  1382.             activate();

  1383. 

  1384.         carla_stdout("CarlaPluginLADSPA::sampleRateChanged(%g) - end", newSampleRate);

  1385.     }

  1386. 

  1387.     void reconnectAudioPorts() const noexcept

  1388.     {

  1389.         if (fForcedStereoIn)

  1390.         {

  1391.             if (LADSPA_Handle const handle = fHandles.getFirst(nullptr))

  1392.             {

  1393.                 try {

  1394.                     fDescriptor->connect_port(handle, pData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  1395.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port (forced stereo input, first)");

  1396.             }

  1397. 

  1398.             if (LADSPA_Handle const handle = fHandles.getLast(nullptr))

  1399.             {

  1400.                 try {

  1401.                     fDescriptor->connect_port(handle, pData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  1402.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port (forced stereo input, last)");

  1403.             }

  1404.         }

  1405.         else

  1406.         {

  1407.             for (LinkedList<LADSPA_Handle>::Itenerator it = fHandles.begin2(); it.valid(); it.next())

  1408.             {

  1409.                 LADSPA_Handle const handle(it.getValue(nullptr));

  1410.                 CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  1411. 

  1412.                 for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1413.                 {

  1414.                     try {

  1415.                         fDescriptor->connect_port(handle, pData->audioIn.ports[i].rindex, fAudioInBuffers[i]);

  1416.                     } CARLA_SAFE_EXCEPTION("LADSPA connect_port (audio input)");

  1417.                 }

  1418.             }

  1419.         }

  1420. 

  1421.         if (fForcedStereoOut)

  1422.         {

  1423.             if (LADSPA_Handle const handle = fHandles.getFirst(nullptr))

  1424.             {

  1425.                 try {

  1426.                     fDescriptor->connect_port(handle, pData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  1427.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port (forced stereo output, first)");

  1428.             }

  1429. 

  1430.             if (LADSPA_Handle const handle = fHandles.getLast(nullptr))

  1431.             {

  1432.                 try {

  1433.                     fDescriptor->connect_port(handle, pData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  1434.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port (forced stereo output, last)");

  1435.             }

  1436.         }

  1437.         else

  1438.         {

  1439.             for (LinkedList<LADSPA_Handle>::Itenerator it = fHandles.begin2(); it.valid(); it.next())

  1440.             {

  1441.                 LADSPA_Handle const handle(it.getValue(nullptr));

  1442.                 CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  1443. 

  1444.                 for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1445.                 {

  1446.                     try {

  1447.                         fDescriptor->connect_port(handle, pData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  1448.                     } CARLA_SAFE_EXCEPTION("LADSPA connect_port (audio output)");

  1449.                 }

  1450.             }

  1451.         }

  1452.     }

  1453. 

  1454.     // -------------------------------------------------------------------

  1455.     // Plugin buffers

  1456. 

  1457.     void clearBuffers() noexcept override

  1458.     {

  1459.         carla_debug("CarlaPluginLADSPA::clearBuffers() - start");

  1460. 

  1461.         if (fAudioInBuffers != nullptr)

  1462.         {

  1463.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1464.             {

  1465.                 if (fAudioInBuffers[i] != nullptr)

  1466.                 {

  1467.                     delete[] fAudioInBuffers[i];

  1468.                     fAudioInBuffers[i] = nullptr;

  1469.                 }

  1470.             }

  1471. 

  1472.             delete[] fAudioInBuffers;

  1473.             fAudioInBuffers = nullptr;

  1474.         }

  1475. 

  1476.         if (fAudioOutBuffers != nullptr)

  1477.         {

  1478.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1479.             {

  1480.                 if (fAudioOutBuffers[i] != nullptr)

  1481.                 {

  1482.                     delete[] fAudioOutBuffers[i];

  1483.                     fAudioOutBuffers[i] = nullptr;

  1484.                 }

  1485.             }

  1486. 

  1487.             delete[] fAudioOutBuffers;

  1488.             fAudioOutBuffers = nullptr;

  1489.         }

  1490. 

  1491.         if (fExtraStereoBuffer[0] != nullptr)

  1492.         {

  1493.             delete[] fExtraStereoBuffer[0];

  1494.             fExtraStereoBuffer[0] = nullptr;

  1495.         }

  1496. 

  1497.         if (fExtraStereoBuffer[1] != nullptr)

  1498.         {

  1499.             delete[] fExtraStereoBuffer[1];

  1500.             fExtraStereoBuffer[1] = nullptr;

  1501.         }

  1502. 

  1503.         if (fParamBuffers != nullptr)

  1504.         {

  1505.             delete[] fParamBuffers;

  1506.             fParamBuffers = nullptr;

  1507.         }

  1508. 

  1509.         CarlaPlugin::clearBuffers();

  1510. 

  1511.         carla_debug("CarlaPluginLADSPA::clearBuffers() - end");

  1512.     }

  1513. 

  1514.     // -------------------------------------------------------------------

  1515. 

  1516.     const void* getNativeDescriptor() const noexcept override

  1517.     {

  1518.         return fDescriptor;

  1519.     }

  1520. 

  1521.     const void* getExtraStuff() const noexcept override

  1522.     {

  1523.         return fRdfDescriptor;

  1524.     }

  1525. 

  1526.     // -------------------------------------------------------------------

  1527. 

  1528.     bool init(const char* const filename, const char* name, const char* const label, const uint options,

  1529.               const LADSPA_RDF_Descriptor* const rdfDescriptor)

  1530.     {

  1531.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  1532. 

  1533.         // ---------------------------------------------------------------

  1534.         // first checks

  1535. 

  1536.         if (pData->client != nullptr)

  1537.         {

  1538.             pData->engine->setLastError("Plugin client is already registered");

  1539.             return false;

  1540.         }

  1541. 

  1542.         if (filename == nullptr || filename[0] == '\0')

  1543.         {

  1544.             pData->engine->setLastError("null filename");

  1545.             return false;

  1546.         }

  1547. 

  1548.         // ---------------------------------------------------------------

  1549.         // open DLL

  1550. 

  1551.         if (! pData->libOpen(filename))

  1552.         {

  1553.             pData->engine->setLastError(pData->libError(filename));

  1554.             return false;

  1555.         }

  1556. 

  1557.         // ---------------------------------------------------------------

  1558.         // get DLL main entry

  1559. 

  1560.         const LADSPA_Descriptor_Function descFn = pData->libSymbol<LADSPA_Descriptor_Function>("ladspa_descriptor");

  1561. 

  1562.         if (descFn == nullptr)

  1563.         {

  1564.             pData->engine->setLastError("Could not find the LASDPA Descriptor in the plugin library");

  1565.             return false;

  1566.         }

  1567. 

  1568.         // ---------------------------------------------------------------

  1569.         // get descriptor that matches label

  1570. 

  1571.         // if label is null, get first valid plugin

  1572.         const bool nullLabel = (label == nullptr || label[0] == '\0');

  1573. 

  1574.         for (ulong d=0;; ++d)

  1575.         {

  1576.             try {

  1577.                 fDescriptor = descFn(d);

  1578.             }

  1579.             catch(...) {

  1580.                 carla_stderr2("Caught exception when trying to get LADSPA descriptor");

  1581.                 fDescriptor = nullptr;

  1582.                 break;

  1583.             }

  1584. 

  1585.             if (fDescriptor == nullptr)

  1586.                 break;

  1587. 

  1588.             if (fDescriptor->Label == nullptr || fDescriptor->Label[0] == '\0')

  1589.             {

  1590.                 carla_stderr2("WARNING - Got an invalid label, will not use this plugin");

  1591.                 fDescriptor = nullptr;

  1592.                 break;

  1593.             }

  1594.             if (fDescriptor->run == nullptr)

  1595.             {

  1596.                 carla_stderr2("WARNING - Plugin has no run, cannot use it");

  1597.                 fDescriptor = nullptr;

  1598.                 break;

  1599.             }

  1600. 

  1601.             if (nullLabel || std::strcmp(fDescriptor->Label, label) == 0)

  1602.                 break;

  1603.         }

  1604. 

  1605.         if (fDescriptor == nullptr)

  1606.         {

  1607.             pData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  1608.             return false;

  1609.         }

  1610. 

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

  1612.         // check for fixed buffer size requirement

  1613. 

  1614.         fNeedsFixedBuffers = CarlaString(filename).contains("dssi-vst", true);

  1615. 

  1616.         if (fNeedsFixedBuffers && ! pData->engine->usesConstantBufferSize())

  1617.         {

  1618.             pData->engine->setLastError("Cannot use this plugin under the current engine.\n"

  1619.                                         "The plugin requires a fixed block size which is not possible right now.");

  1620.             return false;

  1621.         }

  1622. 

  1623.         // ---------------------------------------------------------------

  1624.         // get info

  1625. 

  1626.         if (is_ladspa_rdf_descriptor_valid(rdfDescriptor, fDescriptor))

  1627.             fRdfDescriptor = ladspa_rdf_dup(rdfDescriptor);

  1628. 

  1629.         if (name == nullptr || name[0] == '\0')

  1630.         {

  1631.             /**/ if (fRdfDescriptor != nullptr && fRdfDescriptor->Title != nullptr && fRdfDescriptor->Title[0] != '\0')

  1632.                 name = fRdfDescriptor->Title;

  1633.             else if (fDescriptor->Name != nullptr && fDescriptor->Name[0] != '\0')

  1634.                 name = fDescriptor->Name;

  1635.             else

  1636.                 name = fDescriptor->Label;

  1637.         }

  1638. 

  1639.         pData->name = pData->engine->getUniquePluginName(name);

  1640.         pData->filename = carla_strdup(filename);

  1641. 

  1642.         // ---------------------------------------------------------------

  1643.         // register client

  1644. 

  1645.         pData->client = pData->engine->addClient(this);

  1646. 

  1647.         if (pData->client == nullptr || ! pData->client->isOk())

  1648.         {

  1649.             pData->engine->setLastError("Failed to register plugin client");

  1650.             return false;

  1651.         }

  1652. 

  1653.         // ---------------------------------------------------------------

  1654.         // initialize plugin

  1655. 

  1656.         if (! addInstance())

  1657.             return false;

  1658. 

  1659.         // ---------------------------------------------------------------

  1660.         // find latency port index

  1661. 

  1662.         for (uint32_t i=0, iCtrl=0, count=getSafePortCount(); i<count; ++i)

  1663.         {

  1664.             const int portType(fDescriptor->PortDescriptors[i]);

  1665. 

  1666.             if (! LADSPA_IS_PORT_CONTROL(portType))

  1667.                 continue;

  1668. 

  1669.             const uint32_t index(iCtrl++);

  1670. 

  1671.             if (! LADSPA_IS_PORT_OUTPUT(portType))

  1672.                 continue;

  1673. 

  1674.             const char* const portName(fDescriptor->PortNames[i]);

  1675.             CARLA_SAFE_ASSERT_BREAK(portName != nullptr);

  1676. 

  1677.             if (std::strcmp(portName, "latency")  == 0 ||

  1678.                 std::strcmp(portName, "_latency") == 0)

  1679.             {

  1680.                 fLatencyIndex = static_cast<int32_t>(index);

  1681.                 break;

  1682.             }

  1683.         }

  1684. 

  1685.         // ---------------------------------------------------------------

  1686.         // set default options

  1687. 

  1688.         pData->options = 0x0;

  1689. 

  1690.         /**/ if (fLatencyIndex >= 0 || fNeedsFixedBuffers)

  1691.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  1692.          else if (options & PLUGIN_OPTION_FIXED_BUFFERS)

  1693.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  1694. 

  1695.         /**/ if (pData->engine->getOptions().forceStereo)

  1696.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1697.          else if (options & PLUGIN_OPTION_FORCE_STEREO)

  1698.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1699. 

  1700.         return true;

  1701.     }

  1702. 

  1703.     // -------------------------------------------------------------------

  1704. 

  1705. private:

  1706.     LinkedList<LADSPA_Handle>    fHandles;

  1707.     const LADSPA_Descriptor*     fDescriptor;

  1708.     const LADSPA_RDF_Descriptor* fRdfDescriptor;

  1709. 

  1710.     float** fAudioInBuffers;

  1711.     float** fAudioOutBuffers;

  1712.     float*  fExtraStereoBuffer[2]; // used only if forcedStereoIn and audioOut == 2

  1713.     float*  fParamBuffers;

  1714. 

  1715.     int32_t fLatencyIndex; // -1 if invalid

  1716.     bool    fForcedStereoIn;

  1717.     bool    fForcedStereoOut;

  1718.     bool    fNeedsFixedBuffers;

  1719. 

  1720.     // -------------------------------------------------------------------

  1721. 

  1722.     bool addInstance()

  1723.     {

  1724.         LADSPA_Handle handle;

  1725. 

  1726.         try {

  1727.             handle = fDescriptor->instantiate(fDescriptor, static_cast<ulong>(pData->engine->getSampleRate()));

  1728.         } CARLA_SAFE_EXCEPTION_RETURN_ERR("LADSPA instantiate", "Plugin failed to initialize");

  1729. 

  1730.         for (uint32_t i=0, count=pData->param.count; i<count; ++i)

  1731.         {

  1732.             const int32_t rindex(pData->param.data[i].rindex);

  1733.             CARLA_SAFE_ASSERT_CONTINUE(rindex >= 0);

  1734. 

  1735.             try {

  1736.                 fDescriptor->connect_port(handle, static_cast<ulong>(rindex), &fParamBuffers[i]);

  1737.             } CARLA_SAFE_EXCEPTION("LADSPA connect_port");

  1738.         }

  1739. 

  1740.         if (fHandles.append(handle))

  1741.             return true;

  1742. 

  1743.         try {

  1744.             fDescriptor->cleanup(handle);

  1745.         } CARLA_SAFE_EXCEPTION("LADSPA cleanup");

  1746. 

  1747.         pData->engine->setLastError("Out of memory");

  1748.         return false;

  1749.     }

  1750. 

  1751.     uint32_t getSafePortCount() const noexcept

  1752.     {

  1753.         if (fDescriptor->PortCount == 0)

  1754.             return 0;

  1755. 

  1756.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortDescriptors != nullptr, 0);

  1757.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortRangeHints != nullptr, 0);

  1758.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortNames != nullptr, 0);

  1759. 

  1760.         return static_cast<uint32_t>(fDescriptor->PortCount);

  1761.     }

  1762. 

  1763.     bool getSeparatedParameterNameOrUnit(const char* const paramName, char* const strBuf, const bool wantName) const noexcept

  1764.     {

  1765.         if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, true))

  1766.             return true;

  1767.         if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, false))

  1768.             return true;

  1769.         return false;

  1770.     }

  1771. 

  1772.     static bool _getSeparatedParameterNameOrUnitImpl(const char* const paramName, char* const strBuf,

  1773.                                                      const bool wantName, const bool useBracket) noexcept

  1774.     {

  1775.         const char* const sepBracketStart(std::strstr(paramName, useBracket ? " [" : " ("));

  1776. 

  1777.         if (sepBracketStart == nullptr)

  1778.             return false;

  1779. 

  1780.         const char* const sepBracketEnd(std::strstr(sepBracketStart, useBracket ? "]" : ")"));

  1781. 

  1782.         if (sepBracketEnd == nullptr)

  1783.             return false;

  1784. 

  1785.         const std::size_t unitSize(static_cast<std::size_t>(sepBracketEnd-sepBracketStart-2));

  1786. 

  1787.         if (unitSize > 7) // very unlikely to have such big unit

  1788.             return false;

  1789. 

  1790.         const std::size_t sepIndex(std::strlen(paramName)-unitSize-3);

  1791. 

  1792.         // just in case

  1793.         if (sepIndex+2 >= STR_MAX)

  1794.             return false;

  1795. 

  1796.         if (wantName)

  1797.         {

  1798.             std::strncpy(strBuf, paramName, sepIndex);

  1799.             strBuf[sepIndex] = '\0';

  1800.         }

  1801.         else

  1802.         {

  1803.             std::strncpy(strBuf, paramName+(sepIndex+2), unitSize);

  1804.             strBuf[unitSize] = '\0';

  1805.         }

  1806. 

  1807.         return true;

  1808.     }

  1809. 

  1810.     // -------------------------------------------------------------------

  1811. 

  1812.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginLADSPA)

  1813. };

  1814. 

  1815. // -------------------------------------------------------------------------------------------------------------------

  1816. 

  1817. CarlaPlugin* CarlaPlugin::newLADSPA(const Initializer& init, const LADSPA_RDF_Descriptor* const rdfDescriptor)

  1818. {

  1819.     carla_debug("CarlaPlugin::newLADSPA({%p, \"%s\", \"%s\", \"%s\", " P_INT64 ", %x}, %p)",

  1820.                 init.engine, init.filename, init.name, init.label, init.uniqueId, init.options, rdfDescriptor);

  1821. 

  1822.     CarlaPluginLADSPA* const plugin(new CarlaPluginLADSPA(init.engine, init.id));

  1823. 

  1824.     if (! plugin->init(init.filename, init.name, init.label, init.options, rdfDescriptor))

  1825.     {

  1826.         delete plugin;

  1827.         return nullptr;

  1828.     }

  1829. 

  1830.     return plugin;

  1831. }

  1832. 

  1833. // -------------------------------------------------------------------------------------------------------------------

  1834. 

  1835. CARLA_BACKEND_END_NAMESPACE