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Carla/source/backend/plugin/CarlaPluginLADSPA.cpp

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  1. /*

  2.  * Carla Plugin, LADSPA implementation

  3.  * Copyright (C) 2011-2015 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.           fIsDssiVst(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.         const int32_t rindex(pData->param.data[parameterId].rindex);

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

  167. 

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

  169.         {

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

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

  172.         }

  173. 

  174.         return 0;

  175.     }

  176. 

  177.     // -------------------------------------------------------------------

  178.     // Information (current data)

  179. 

  180.     // nothing

  181. 

  182.     // -------------------------------------------------------------------

  183.     // Information (per-plugin data)

  184. 

  185.     uint getOptionsAvailable() const noexcept override

  186.     {

  187.         uint options = 0x0;

  188. 

  189.         if (! fIsDssiVst)

  190.         {

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

  192.             if (fLatencyIndex == -1)

  193.                 options |= PLUGIN_OPTION_FIXED_BUFFERS;

  194. 

  195.             // can't disable forced stereo if in rack mode

  196.             if (pData->engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK)

  197.                 pass();

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

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

  200.                 options |= PLUGIN_OPTION_FORCE_STEREO;

  201.         }

  202. 

  203.         return options;

  204.     }

  205. 

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

  207.     {

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

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

  210. 

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

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

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

  214. 

  215.         // not output, should be fine

  216.         return fParamBuffers[parameterId];

  217.     }

  218. 

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

  220.     {

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

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

  223. 

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

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

  226. 

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

  228.         {

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

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

  231. 

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

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

  234.         }

  235. 

  236.         return 0.0f;

  237.     }

  238. 

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

  240.     {

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

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

  243. 

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

  245.     }

  246. 

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

  248.     {

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

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

  251. 

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

  253.         {

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

  255.             return;

  256.         }

  257. 

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

  259.     }

  260. 

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

  262.     {

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

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

  265. 

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

  267.     }

  268. 

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

  270.     {

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

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

  273. 

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

  275.         {

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

  277.             return;

  278.         }

  279. 

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

  281.     }

  282. 

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

  284.     {

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

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

  287. 

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

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

  290. 

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

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

  293. 

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

  295.             return;

  296. 

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

  298.     }

  299. 

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

  301.     {

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

  303. 

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

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

  306. 

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

  308.         {

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

  310. 

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

  312.             {

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

  314. 

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

  316.                 return;

  317.             }

  318.         }

  319. 

  320.         nullStrBuf(strBuf);

  321.     }

  322. 

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

  324.     {

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

  326. 

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

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

  329. 

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

  331.         {

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

  333. 

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

  335.             {

  336.                 switch (port->Unit)

  337.                 {

  338.                 case LADSPA_UNIT_DB:

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

  340.                     return;

  341.                 case LADSPA_UNIT_COEF:

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

  343.                     return;

  344.                 case LADSPA_UNIT_HZ:

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

  346.                     return;

  347.                 case LADSPA_UNIT_S:

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

  349.                     return;

  350.                 case LADSPA_UNIT_MS:

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

  352.                     return;

  353.                 case LADSPA_UNIT_MIN:

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

  355.                     return;

  356.                 }

  357.             }

  358.         }

  359. 

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

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

  362. 

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

  364.             return;

  365. 

  366.         nullStrBuf(strBuf);

  367.     }

  368. 

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

  370.     {

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

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

  373. 

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

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

  376. 

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

  378.         {

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

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

  381. 

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

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

  384. 

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

  386.             return;

  387.         }

  388. 

  389.         nullStrBuf(strBuf);

  390.     }

  391. 

  392.     // -------------------------------------------------------------------

  393.     // Set data (state)

  394. 

  395.     // nothing

  396. 

  397.     // -------------------------------------------------------------------

  398.     // Set data (internal stuff)

  399. 

  400.     // nothing

  401. 

  402.     // -------------------------------------------------------------------

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

  404. 

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

  406.     {

  407.         CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr,);

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

  409. 

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

  411.         fParamBuffers[parameterId] = fixedValue;

  412. 

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

  414.     }

  415. 

  416.     // -------------------------------------------------------------------

  417.     // Misc

  418. 

  419.     // nothing

  420. 

  421.     // -------------------------------------------------------------------

  422.     // Plugin state

  423. 

  424.     void reload() override

  425.     {

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

  427.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

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

  430. 

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

  432. 

  433.         // Safely disable plugin for reload

  434.         const ScopedDisabler sd(this);

  435. 

  436.         if (pData->active)

  437.             deactivate();

  438. 

  439.         clearBuffers();

  440. 

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

  442.         const uint32_t portCount(getSafePortCount());

  443. 

  444.         uint32_t aIns, aOuts, params;

  445.         aIns = aOuts = params = 0;

  446. 

  447.         bool forcedStereoIn, forcedStereoOut;

  448.         forcedStereoIn = forcedStereoOut = false;

  449. 

  450.         bool needsCtrlIn, needsCtrlOut;

  451.         needsCtrlIn = needsCtrlOut = false;

  452. 

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

  454.         {

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

  456. 

  457.             if (LADSPA_IS_PORT_AUDIO(portType))

  458.             {

  459.                 if (LADSPA_IS_PORT_INPUT(portType))

  460.                     aIns += 1;

  461.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  462.                     aOuts += 1;

  463.             }

  464.             else if (LADSPA_IS_PORT_CONTROL(portType))

  465.                 params += 1;

  466.         }

  467. 

  468.         if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  469.         {

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

  471.             {

  472.                 if (aIns == 1)

  473.                 {

  474.                     aIns = 2;

  475.                     forcedStereoIn = true;

  476.                 }

  477.                 if (aOuts == 1)

  478.                 {

  479.                     aOuts = 2;

  480.                     forcedStereoOut = true;

  481.                 }

  482.             }

  483.         }

  484. 

  485.         if (aIns > 0)

  486.         {

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

  488.             fAudioInBuffers = new float*[aIns];

  489. 

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

  491.                 fAudioInBuffers[i] = nullptr;

  492.         }

  493. 

  494.         if (aOuts > 0)

  495.         {

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

  497.             fAudioOutBuffers = new float*[aOuts];

  498.             needsCtrlIn = true;

  499. 

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

  501.                 fAudioOutBuffers[i] = nullptr;

  502.         }

  503. 

  504.         if (params > 0)

  505.         {

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

  507. 

  508.             fParamBuffers = new float[params];

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

  510.         }

  511. 

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

  513.         CarlaString portName;

  514. 

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

  516.         {

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

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

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

  520. 

  521.             if (LADSPA_IS_PORT_AUDIO(portType))

  522.             {

  523.                 portName.clear();

  524. 

  525.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  526.                 {

  527.                     portName  = pData->name;

  528.                     portName += ":";

  529.                 }

  530. 

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

  532.                 {

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

  534.                 }

  535.                 else

  536.                 {

  537.                     if (LADSPA_IS_PORT_INPUT(portType))

  538.                     {

  539.                         if (aIns > 1)

  540.                         {

  541.                             portName += "audio-in_";

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

  543.                         }

  544.                         else

  545.                             portName += "audio-in";

  546.                     }

  547.                     else

  548.                     {

  549.                         if (aOuts > 1)

  550.                         {

  551.                             portName += "audio-out_";

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

  553.                         }

  554.                         else

  555.                             portName += "audio-out";

  556.                     }

  557.                 }

  558. 

  559.                 portName.truncate(portNameSize);

  560. 

  561.                 if (LADSPA_IS_PORT_INPUT(portType))

  562.                 {

  563.                     const uint32_t j = iAudioIn++;

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

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

  566. 

  567.                     if (forcedStereoIn)

  568.                     {

  569.                         portName += "_2";

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

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

  572.                     }

  573.                 }

  574.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  575.                 {

  576.                     const uint32_t j = iAudioOut++;

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

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

  579. 

  580.                     if (forcedStereoOut)

  581.                     {

  582.                         portName += "_2";

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

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

  585.                     }

  586.                 }

  587.                 else

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

  589.             }

  590.             else if (LADSPA_IS_PORT_CONTROL(portType))

  591.             {

  592.                 const uint32_t j = iCtrl++;

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

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

  595. 

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

  597. 

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

  599. 

  600.                 // min value

  601.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  602.                     min = portRangeHints.LowerBound;

  603.                 else

  604.                     min = 0.0f;

  605. 

  606.                 // max value

  607.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  608.                     max = portRangeHints.UpperBound;

  609.                 else

  610.                     max = 1.0f;

  611. 

  612.                 if (min > max)

  613.                 {

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

  615.                     min = max - 0.1f;

  616.                 }

  617.                 else if (carla_isEqual(min, max))

  618.                 {

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

  620.                     max = min + 0.1f;

  621.                 }

  622. 

  623.                 // default value

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

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

  626.                 else

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

  628. 

  629.                 if (def < min)

  630.                     def = min;

  631.                 else if (def > max)

  632.                     def = max;

  633. 

  634.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  635.                 {

  636.                     min *= sampleRate;

  637.                     max *= sampleRate;

  638.                     def *= sampleRate;

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

  640.                 }

  641. 

  642.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  643.                 {

  644.                     step = max - min;

  645.                     stepSmall = step;

  646.                     stepLarge = step;

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

  648.                 }

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

  650.                 {

  651.                     step = 1.0f;

  652.                     stepSmall = 1.0f;

  653.                     stepLarge = 10.0f;

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

  655.                 }

  656.                 else

  657.                 {

  658.                     const float range = max - min;

  659.                     step = range/100.0f;

  660.                     stepSmall = range/1000.0f;

  661.                     stepLarge = range/10.0f;

  662.                 }

  663. 

  664.                 if (LADSPA_IS_PORT_INPUT(portType))

  665.                 {

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

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

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

  669.                     needsCtrlIn = true;

  670.                 }

  671.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  672.                 {

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

  674. 

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

  676.                     {

  677.                         min = 0.0f;

  678.                         max = sampleRate;

  679.                         def = 0.0f;

  680.                         step = 1.0f;

  681.                         stepSmall = 1.0f;

  682.                         stepLarge = 1.0f;

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

  684.                         CARLA_SAFE_ASSERT(fLatencyIndex == static_cast<int32_t>(j));

  685.                     }

  686.                     else

  687.                     {

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

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

  690.                         needsCtrlOut = true;

  691.                     }

  692.                 }

  693.                 else

  694.                 {

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

  696.                 }

  697. 

  698.                 // extra parameter hints

  699.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

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

  701. 

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

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

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

  705. 

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

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

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

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

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

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

  712. 

  713.                 // Start parameters in their default values

  714.                 fParamBuffers[j] = def;

  715. 

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

  717.                 {

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

  719.                     CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  720. 

  721.                     try {

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

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

  724.                 }

  725.             }

  726.             else

  727.             {

  728.                 // Not Audio or Control

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

  730. 

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

  732.                 {

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

  734.                     CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  735. 

  736.                     try {

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

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

  739.                 }

  740.             }

  741.         }

  742. 

  743.         if (needsCtrlIn)

  744.         {

  745.             portName.clear();

  746. 

  747.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  748.             {

  749.                 portName  = pData->name;

  750.                 portName += ":";

  751.             }

  752. 

  753.             portName += "events-in";

  754.             portName.truncate(portNameSize);

  755. 

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

  757.         }

  758. 

  759.         if (needsCtrlOut)

  760.         {

  761.             portName.clear();

  762. 

  763.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  764.             {

  765.                 portName  = pData->name;

  766.                 portName += ":";

  767.             }

  768. 

  769.             portName += "events-out";

  770.             portName.truncate(portNameSize);

  771. 

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

  773.         }

  774. 

  775.         if (forcedStereoIn || forcedStereoOut)

  776.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  777.         else

  778.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  779. 

  780.         // plugin hints

  781.         pData->hints = 0x0;

  782. 

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

  784.             pData->hints |= PLUGIN_IS_RTSAFE;

  785. 

  786. #ifndef BUILD_BRIDGE

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

  788.             pData->hints |= PLUGIN_CAN_DRYWET;

  789. 

  790.         if (aOuts > 0)

  791.             pData->hints |= PLUGIN_CAN_VOLUME;

  792. 

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

  794.             pData->hints |= PLUGIN_CAN_BALANCE;

  795. #endif

  796. 

  797.         // extra plugin hints

  798.         pData->extraHints  = 0x0;

  799.         pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  800. 

  801.         // check initial latency

  802.         findInitialLatencyValue(aIns, aOuts);

  803. 

  804.         fForcedStereoIn  = forcedStereoIn;

  805.         fForcedStereoOut = forcedStereoOut;

  806. 

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

  808. 

  809.         if (pData->active)

  810.             activate();

  811. 

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

  813.     }

  814. 

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

  816.     {

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

  818.             return;

  819. 

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

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

  822.         CARLA_SAFE_ASSERT_RETURN(handle != nullptr,);

  823. 

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

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

  826. 

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

  828.         {

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

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

  831. 

  832.             try {

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

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

  835.         }

  836. 

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

  838.         {

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

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

  841. 

  842.             try {

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

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

  845.         }

  846. 

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

  848.         {

  849.             try {

  850.                 fDescriptor->activate(handle);

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

  852.         }

  853. 

  854.         try {

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

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

  857. 

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

  859.         {

  860.             try {

  861.                 fDescriptor->deactivate(handle);

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

  863.         }

  864. 

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

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

  867.         {

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

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

  870.         }

  871.     }

  872. 

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

  874.     // Plugin processing

  875. 

  876.     void activate() noexcept override

  877.     {

  878.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  879. 

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

  881.         {

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

  883.             {

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

  885.                 CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  886. 

  887.                 try {

  888.                     fDescriptor->activate(handle);

  889.                 } CARLA_SAFE_EXCEPTION("LADSPA activate");

  890.             }

  891.         }

  892.     }

  893. 

  894.     void deactivate() noexcept override

  895.     {

  896.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  897. 

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

  899.         {

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

  901.             {

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

  903.                 CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  904. 

  905.                 try {

  906.                     fDescriptor->deactivate(handle);

  907.                 } CARLA_SAFE_EXCEPTION("LADSPA deactivate");

  908.             }

  909.         }

  910.     }

  911. 

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

  913.     {

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

  915.         // Check if active

  916. 

  917.         if (! pData->active)

  918.         {

  919.             // disable any output sound

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

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

  922.             return;

  923.         }

  924. 

  925.         // --------------------------------------------------------------------------------------------------------

  926.         // Event Input and Processing

  927. 

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

  929.         {

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

  931.             // Event Input (System)

  932. 

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

  934. 

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

  936.             uint32_t timeOffset = 0;

  937. 

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

  939.             {

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

  941. 

  942.                 if (event.time >= frames)

  943.                     continue;

  944. 

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

  946. 

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

  948.                 {

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

  950.                         timeOffset = event.time;

  951.                 }

  952. 

  953.                 switch (event.type)

  954.                 {

  955.                 case kEngineEventTypeNull:

  956.                     break;

  957. 

  958.                 case kEngineEventTypeControl: {

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

  960. 

  961.                     switch (ctrlEvent.type)

  962.                     {

  963.                     case kEngineControlEventTypeNull:

  964.                         break;

  965. 

  966.                     case kEngineControlEventTypeParameter: {

  967. #ifndef BUILD_BRIDGE

  968.                         // Control backend stuff

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

  970.                         {

  971.                             float value;

  972. 

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

  974.                             {

  975.                                 value = ctrlEvent.value;

  976.                                 setDryWet(value, false, false);

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

  978.                                 break;

  979.                             }

  980. 

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

  982.                             {

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

  984.                                 setVolume(value, false, false);

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

  986.                                 break;

  987.                             }

  988. 

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

  990.                             {

  991.                                 float left, right;

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

  993. 

  994.                                 if (value < 0.0f)

  995.                                 {

  996.                                     left  = -1.0f;

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

  998.                                 }

  999.                                 else if (value > 0.0f)

  1000.                                 {

  1001.                                     left  = (value*2.0f)-1.0f;

  1002.                                     right = 1.0f;

  1003.                                 }

  1004.                                 else

  1005.                                 {

  1006.                                     left  = -1.0f;

  1007.                                     right = 1.0f;

  1008.                                 }

  1009. 

  1010.                                 setBalanceLeft(left, false, false);

  1011.                                 setBalanceRight(right, false, false);

  1012.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1013.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1014.                                 break;

  1015.                             }

  1016.                         }

  1017. #endif

  1018.                         // Control plugin parameters

  1019.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1020.                         {

  1021.                             if (pData->param.data[k].midiChannel != event.channel)

  1022.                                 continue;

  1023.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1024.                                 continue;

  1025.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1026.                                 continue;

  1027.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1028.                                 continue;

  1029. 

  1030.                             float value;

  1031. 

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

  1033.                             {

  1034.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1035.                             }

  1036.                             else

  1037.                             {

  1038.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1039. 

  1040.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1041.                                     value = std::rint(value);

  1042.                             }

  1043. 

  1044.                             setParameterValue(k, value, false, false, false);

  1045.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1046.                             break;

  1047.                         }

  1048.                         break;

  1049.                     } // case kEngineControlEventTypeParameter

  1050. 

  1051.                     case kEngineControlEventTypeMidiBank:

  1052.                     case kEngineControlEventTypeMidiProgram:

  1053.                     case kEngineControlEventTypeAllSoundOff:

  1054.                     case kEngineControlEventTypeAllNotesOff:

  1055.                         break;

  1056.                     } // switch (ctrlEvent.type)

  1057.                     break;

  1058.                 } // case kEngineEventTypeControl

  1059. 

  1060.                 case kEngineEventTypeMidi:

  1061.                     break;

  1062.                 } // switch (event.type)

  1063.             }

  1064. 

  1065.             pData->postRtEvents.trySplice();

  1066. 

  1067.             if (frames > timeOffset)

  1068.                 processSingle(audioIn, audioOut, frames - timeOffset, timeOffset);

  1069. 

  1070.         } // End of Event Input and Processing

  1071. 

  1072.         // --------------------------------------------------------------------------------------------------------

  1073.         // Plugin processing (no events)

  1074. 

  1075.         else

  1076.         {

  1077.             processSingle(audioIn, audioOut, frames, 0);

  1078. 

  1079.         } // End of Plugin processing (no events)

  1080. 

  1081.         // --------------------------------------------------------------------------------------------------------

  1082.         // Control Output

  1083. 

  1084.         if (pData->event.portOut != nullptr)

  1085.         {

  1086.             uint8_t  channel;

  1087.             uint16_t param;

  1088.             float    value;

  1089. 

  1090.             for (uint32_t k=0; k < pData->param.count; ++k)

  1091.             {

  1092.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1093.                     continue;

  1094. 

  1095.                 pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1096. 

  1097.                 if (pData->param.data[k].midiCC > 0)

  1098.                 {

  1099.                     channel = pData->param.data[k].midiChannel;

  1100.                     param   = static_cast<uint16_t>(pData->param.data[k].midiCC);

  1101.                     value   = pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]);

  1102.                     pData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value);

  1103.                 }

  1104.             }

  1105.         } // End of Control Output

  1106.     }

  1107. 

  1108.     bool processSingle(const float** const audioIn, float** const audioOut, const uint32_t frames,

  1109.                        const uint32_t timeOffset)

  1110.     {

  1111.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1112. 

  1113.         if (pData->audioIn.count > 0)

  1114.         {

  1115.             CARLA_SAFE_ASSERT_RETURN(audioIn != nullptr, false);

  1116.         }

  1117.         if (pData->audioOut.count > 0)

  1118.         {

  1119.             CARLA_SAFE_ASSERT_RETURN(audioOut != nullptr, false);

  1120.         }

  1121. 

  1122.         // --------------------------------------------------------------------------------------------------------

  1123.         // Try lock, silence otherwise

  1124. 

  1125.         if (pData->engine->isOffline())

  1126.         {

  1127.             pData->singleMutex.lock();

  1128.         }

  1129.         else if (! pData->singleMutex.tryLock())

  1130.         {

  1131.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1132.             {

  1133.                 for (uint32_t k=0; k < frames; ++k)

  1134.                     audioOut[i][k+timeOffset] = 0.0f;

  1135.             }

  1136. 

  1137.             return false;

  1138.         }

  1139. 

  1140.         const int iframes(static_cast<int>(frames));

  1141. 

  1142.         // --------------------------------------------------------------------------------------------------------

  1143.         // Handle needsReset

  1144. 

  1145.         if (pData->needsReset)

  1146.         {

  1147.             if (pData->latency.frames > 0)

  1148.             {

  1149.                 for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1150.                     FloatVectorOperations::clear(pData->latency.buffers[i], static_cast<int>(pData->latency.frames));

  1151.             }

  1152. 

  1153.             pData->needsReset = false;

  1154.         }

  1155. 

  1156.         // --------------------------------------------------------------------------------------------------------

  1157.         // Set audio buffers

  1158. 

  1159.         const bool customMonoOut   = pData->audioOut.count == 2 && fForcedStereoOut && ! fForcedStereoIn;

  1160.         const bool customStereoOut = pData->audioOut.count == 2 && fForcedStereoIn  && ! fForcedStereoOut;

  1161. 

  1162.         if (! customMonoOut)

  1163.         {

  1164.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1165.                 FloatVectorOperations::clear(fAudioOutBuffers[i], iframes);

  1166.         }

  1167. 

  1168.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1169.             FloatVectorOperations::copy(fAudioInBuffers[i], audioIn[i]+timeOffset, iframes);

  1170. 

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

  1172.         // Run plugin

  1173. 

  1174.         uint instn = 0;

  1175.         for (LinkedList<LADSPA_Handle>::Itenerator it = fHandles.begin2(); it.valid(); it.next(), ++instn)

  1176.         {

  1177.             LADSPA_Handle const handle(it.getValue(nullptr));

  1178.             CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  1179. 

  1180.             // ----------------------------------------------------------------------------------------------------

  1181.             // Mixdown for forced stereo

  1182. 

  1183.             if (customMonoOut)

  1184.                 FloatVectorOperations::clear(fAudioOutBuffers[instn], iframes);

  1185. 

  1186.             // ----------------------------------------------------------------------------------------------------

  1187.             // Run it

  1188. 

  1189.             try {

  1190.                 fDescriptor->run(handle, frames);

  1191.             } CARLA_SAFE_EXCEPTION("LADSPA run");

  1192. 

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

  1194.             // Mixdown for forced stereo

  1195. 

  1196.             if (customMonoOut)

  1197.                 FloatVectorOperations::multiply(fAudioOutBuffers[instn], 0.5f, iframes);

  1198.             else if (customStereoOut)

  1199.                 FloatVectorOperations::copy(fExtraStereoBuffer[instn], fAudioOutBuffers[instn], iframes);

  1200.         }

  1201. 

  1202.         if (customStereoOut)

  1203.         {

  1204.             FloatVectorOperations::copy(fAudioOutBuffers[0], fExtraStereoBuffer[0], iframes);

  1205.             FloatVectorOperations::copy(fAudioOutBuffers[1], fExtraStereoBuffer[1], iframes);

  1206.         }

  1207. 

  1208. #ifndef BUILD_BRIDGE

  1209.         // --------------------------------------------------------------------------------------------------------

  1210.         // Post-processing (dry/wet, volume and balance)

  1211. 

  1212.         {

  1213.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && carla_isNotEqual(pData->postProc.dryWet, 1.0f);

  1214.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_isEqual(pData->postProc.balanceLeft, -1.0f) && carla_isEqual(pData->postProc.balanceRight, 1.0f));

  1215.             const bool isMono    = (pData->audioIn.count == 1);

  1216. 

  1217.             bool isPair;

  1218.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1219. 

  1220.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1221.             {

  1222.                 // Dry/Wet

  1223.                 if (doDryWet)

  1224.                 {

  1225.                     const uint32_t c = isMono ? 0 : i;

  1226. 

  1227.                     for (uint32_t k=0; k < frames; ++k)

  1228.                     {

  1229.                         if (k < pData->latency.frames)

  1230.                             bufValue = pData->latency.buffers[c][k];

  1231.                         else if (pData->latency.frames < frames)

  1232.                             bufValue = fAudioInBuffers[c][k-pData->latency.frames];

  1233.                         else

  1234.                             bufValue = fAudioInBuffers[c][k];

  1235. 

  1236.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1237.                     }

  1238.                 }

  1239. 

  1240.                 // Balance

  1241.                 if (doBalance)

  1242.                 {

  1243.                     isPair = (i % 2 == 0);

  1244. 

  1245.                     if (isPair)

  1246.                     {

  1247.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1248.                         FloatVectorOperations::copy(oldBufLeft, fAudioOutBuffers[i], iframes);

  1249.                     }

  1250. 

  1251.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1252.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1253. 

  1254.                     for (uint32_t k=0; k < frames; ++k)

  1255.                     {

  1256.                         if (isPair)

  1257.                         {

  1258.                             // left

  1259.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1260.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1261.                         }

  1262.                         else

  1263.                         {

  1264.                             // right

  1265.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1266.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1267.                         }

  1268.                     }

  1269.                 }

  1270. 

  1271.                 // Volume (and buffer copy)

  1272.                 {

  1273.                     for (uint32_t k=0; k < frames; ++k)

  1274.                         audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1275.                 }

  1276.             }

  1277. 

  1278.         } // End of Post-processing

  1279. 

  1280. #else // BUILD_BRIDGE

  1281.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1282.         {

  1283.             for (uint32_t k=0; k < frames; ++k)

  1284.                 audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1285.         }

  1286. #endif

  1287. 

  1288.         // --------------------------------------------------------------------------------------------------------

  1289.         // Save latency values for next callback

  1290. 

  1291.         if (const uint32_t latframes = pData->latency.frames)

  1292.         {

  1293.             CARLA_SAFE_ASSERT(timeOffset == 0);

  1294. 

  1295.             if (latframes <= frames)

  1296.             {

  1297.                 for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1298.                     FloatVectorOperations::copy(pData->latency.buffers[i], audioIn[i]+(frames-latframes), static_cast<int>(latframes));

  1299.             }

  1300.             else

  1301.             {

  1302.                 const uint32_t diff = pData->latency.frames-frames;

  1303. 

  1304.                 for (uint32_t i=0, k; i<pData->audioIn.count; ++i)

  1305.                 {

  1306.                     // push back buffer by 'frames'

  1307.                     for (k=0; k < diff; ++k)

  1308.                         pData->latency.buffers[i][k] = pData->latency.buffers[i][k+frames];

  1309. 

  1310.                     // put current input at the end

  1311.                     for (uint32_t j=0; k < latframes; ++j, ++k)

  1312.                         pData->latency.buffers[i][k] = audioIn[i][j];

  1313.                 }

  1314.             }

  1315.         }

  1316. 

  1317.         // --------------------------------------------------------------------------------------------------------

  1318. 

  1319.         pData->singleMutex.unlock();

  1320.         return true;

  1321.     }

  1322. 

  1323.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1324.     {

  1325.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1326.         carla_debug("CarlaPluginLADSPA::bufferSizeChanged(%i) - start", newBufferSize);

  1327. 

  1328.         const int iBufferSize(static_cast<int>(newBufferSize));

  1329. 

  1330.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1331.         {

  1332.             if (fAudioInBuffers[i] != nullptr)

  1333.                 delete[] fAudioInBuffers[i];

  1334. 

  1335.             fAudioInBuffers[i] = new float[newBufferSize];

  1336.             FloatVectorOperations::clear(fAudioInBuffers[i], iBufferSize);

  1337.         }

  1338. 

  1339.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1340.         {

  1341.             if (fAudioOutBuffers[i] != nullptr)

  1342.                 delete[] fAudioOutBuffers[i];

  1343. 

  1344.             fAudioOutBuffers[i] = new float[newBufferSize];

  1345.             FloatVectorOperations::clear(fAudioOutBuffers[i], iBufferSize);

  1346.         }

  1347. 

  1348.         if (fExtraStereoBuffer[0] != nullptr)

  1349.         {

  1350.             delete[] fExtraStereoBuffer[0];

  1351.             fExtraStereoBuffer[0] = nullptr;

  1352.         }

  1353. 

  1354.         if (fExtraStereoBuffer[1] != nullptr)

  1355.         {

  1356.             delete[] fExtraStereoBuffer[1];

  1357.             fExtraStereoBuffer[1] = nullptr;

  1358.         }

  1359. 

  1360.         if (fForcedStereoIn && pData->audioOut.count == 2)

  1361.         {

  1362.             fExtraStereoBuffer[0] = new float[newBufferSize];

  1363.             fExtraStereoBuffer[1] = new float[newBufferSize];

  1364.             FloatVectorOperations::clear(fExtraStereoBuffer[0], iBufferSize);

  1365.             FloatVectorOperations::clear(fExtraStereoBuffer[1], iBufferSize);

  1366.         }

  1367. 

  1368.         reconnectAudioPorts();

  1369. 

  1370.         carla_debug("CarlaPluginLADSPA::bufferSizeChanged(%i) - end", newBufferSize);

  1371.     }

  1372. 

  1373.     void sampleRateChanged(const double newSampleRate) override

  1374.     {

  1375.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  1376.         carla_stdout("CarlaPluginLADSPA::sampleRateChanged(%g) - start", newSampleRate);

  1377. 

  1378.         if (pData->active)

  1379.             deactivate();

  1380. 

  1381.         const std::size_t instanceCount(fHandles.count());

  1382. 

  1383.         if (fDescriptor->cleanup == nullptr)

  1384.         {

  1385.             for (LinkedList<LADSPA_Handle>::Itenerator it = fHandles.begin2(); it.valid(); it.next())

  1386.             {

  1387.                 LADSPA_Handle const handle(it.getValue(nullptr));

  1388.                 CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  1389. 

  1390.                 try {

  1391.                     fDescriptor->cleanup(handle);

  1392.                 } CARLA_SAFE_EXCEPTION("LADSPA cleanup");

  1393.             }

  1394.         }

  1395. 

  1396.         fHandles.clear();

  1397. 

  1398.         for (std::size_t i=0; i<instanceCount; ++i)

  1399.             addInstance();

  1400. 

  1401.         reconnectAudioPorts();

  1402. 

  1403.         if (pData->active)

  1404.             activate();

  1405. 

  1406.         carla_stdout("CarlaPluginLADSPA::sampleRateChanged(%g) - end", newSampleRate);

  1407.     }

  1408. 

  1409.     void reconnectAudioPorts() const noexcept

  1410.     {

  1411.         if (fForcedStereoIn)

  1412.         {

  1413.             if (LADSPA_Handle const handle = fHandles.getAt(0, nullptr))

  1414.             {

  1415.                 try {

  1416.                     fDescriptor->connect_port(handle, pData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  1417.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port (forced stereo input)");

  1418.             }

  1419. 

  1420.             if (LADSPA_Handle const handle = fHandles.getAt(1, nullptr))

  1421.             {

  1422.                 try {

  1423.                     fDescriptor->connect_port(handle, pData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  1424.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port (forced stereo input)");

  1425.             }

  1426.         }

  1427.         else

  1428.         {

  1429.             for (LinkedList<LADSPA_Handle>::Itenerator it = fHandles.begin2(); it.valid(); it.next())

  1430.             {

  1431.                 LADSPA_Handle const handle(it.getValue(nullptr));

  1432.                 CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  1433. 

  1434.                 for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1435.                 {

  1436.                     try {

  1437.                         fDescriptor->connect_port(handle, pData->audioIn.ports[i].rindex, fAudioInBuffers[i]);

  1438.                     } CARLA_SAFE_EXCEPTION("LADSPA connect_port (audio input)");

  1439.                 }

  1440.             }

  1441.         }

  1442. 

  1443.         if (fForcedStereoOut)

  1444.         {

  1445.             if (LADSPA_Handle const handle = fHandles.getAt(0, nullptr))

  1446.             {

  1447.                 try {

  1448.                     fDescriptor->connect_port(handle, pData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  1449.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port (forced stereo output)");

  1450.             }

  1451. 

  1452.             if (LADSPA_Handle const handle = fHandles.getAt(1, nullptr))

  1453.             {

  1454.                 try {

  1455.                     fDescriptor->connect_port(handle, pData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  1456.                 } CARLA_SAFE_EXCEPTION("LADSPA connect_port (forced stereo output)");

  1457.             }

  1458.         }

  1459.         else

  1460.         {

  1461.             for (LinkedList<LADSPA_Handle>::Itenerator it = fHandles.begin2(); it.valid(); it.next())

  1462.             {

  1463.                 LADSPA_Handle const handle(it.getValue(nullptr));

  1464.                 CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  1465. 

  1466.                 for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1467.                 {

  1468.                     try {

  1469.                         fDescriptor->connect_port(handle, pData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  1470.                     } CARLA_SAFE_EXCEPTION("LADSPA connect_port (audio output)");

  1471.                 }

  1472.             }

  1473.         }

  1474.     }

  1475. 

  1476.     // -------------------------------------------------------------------

  1477.     // Plugin buffers

  1478. 

  1479.     void clearBuffers() noexcept override

  1480.     {

  1481.         carla_debug("CarlaPluginLADSPA::clearBuffers() - start");

  1482. 

  1483.         if (fAudioInBuffers != nullptr)

  1484.         {

  1485.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1486.             {

  1487.                 if (fAudioInBuffers[i] != nullptr)

  1488.                 {

  1489.                     delete[] fAudioInBuffers[i];

  1490.                     fAudioInBuffers[i] = nullptr;

  1491.                 }

  1492.             }

  1493. 

  1494.             delete[] fAudioInBuffers;

  1495.             fAudioInBuffers = nullptr;

  1496.         }

  1497. 

  1498.         if (fAudioOutBuffers != nullptr)

  1499.         {

  1500.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1501.             {

  1502.                 if (fAudioOutBuffers[i] != nullptr)

  1503.                 {

  1504.                     delete[] fAudioOutBuffers[i];

  1505.                     fAudioOutBuffers[i] = nullptr;

  1506.                 }

  1507.             }

  1508. 

  1509.             delete[] fAudioOutBuffers;

  1510.             fAudioOutBuffers = nullptr;

  1511.         }

  1512. 

  1513.         if (fExtraStereoBuffer[0] != nullptr)

  1514.         {

  1515.             delete[] fExtraStereoBuffer[0];

  1516.             fExtraStereoBuffer[0] = nullptr;

  1517.         }

  1518. 

  1519.         if (fExtraStereoBuffer[1] != nullptr)

  1520.         {

  1521.             delete[] fExtraStereoBuffer[1];

  1522.             fExtraStereoBuffer[1] = nullptr;

  1523.         }

  1524. 

  1525.         if (fParamBuffers != nullptr)

  1526.         {

  1527.             delete[] fParamBuffers;

  1528.             fParamBuffers = nullptr;

  1529.         }

  1530. 

  1531.         CarlaPlugin::clearBuffers();

  1532. 

  1533.         carla_debug("CarlaPluginLADSPA::clearBuffers() - end");

  1534.     }

  1535. 

  1536.     // -------------------------------------------------------------------

  1537. 

  1538.     const void* getNativeDescriptor() const noexcept override

  1539.     {

  1540.         return fDescriptor;

  1541.     }

  1542. 

  1543.     const void* getExtraStuff() const noexcept override

  1544.     {

  1545.         return fRdfDescriptor;

  1546.     }

  1547. 

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

  1549. 

  1550.     bool init(const char* const filename, const char* const name, const char* const label, const uint options,

  1551.               const LADSPA_RDF_Descriptor* const rdfDescriptor)

  1552.     {

  1553.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  1554. 

  1555.         // ---------------------------------------------------------------

  1556.         // first checks

  1557. 

  1558.         if (pData->client != nullptr)

  1559.         {

  1560.             pData->engine->setLastError("Plugin client is already registered");

  1561.             return false;

  1562.         }

  1563. 

  1564.         if (filename == nullptr || filename[0] == '\0')

  1565.         {

  1566.             pData->engine->setLastError("null filename");

  1567.             return false;

  1568.         }

  1569. 

  1570.         if (label == nullptr || label[0] == '\0')

  1571.         {

  1572.             pData->engine->setLastError("null label");

  1573.             return false;

  1574.         }

  1575. 

  1576.         // ---------------------------------------------------------------

  1577.         // open DLL

  1578. 

  1579.         if (! pData->libOpen(filename))

  1580.         {

  1581.             pData->engine->setLastError(pData->libError(filename));

  1582.             return false;

  1583.         }

  1584. 

  1585.         // ---------------------------------------------------------------

  1586.         // get DLL main entry

  1587. 

  1588.         const LADSPA_Descriptor_Function descFn = pData->libSymbol<LADSPA_Descriptor_Function>("ladspa_descriptor");

  1589. 

  1590.         if (descFn == nullptr)

  1591.         {

  1592.             pData->engine->setLastError("Could not find the LASDPA Descriptor in the plugin library");

  1593.             return false;

  1594.         }

  1595. 

  1596.         // ---------------------------------------------------------------

  1597.         // get descriptor that matches label

  1598. 

  1599.         for (ulong d=0;; ++d)

  1600.         {

  1601.             try {

  1602.                 fDescriptor = descFn(d);

  1603.             }

  1604.             catch(...) {

  1605.                 carla_stderr2("Caught exception when trying to get LADSPA descriptor");

  1606.                 fDescriptor = nullptr;

  1607.                 break;

  1608.             }

  1609. 

  1610.             if (fDescriptor == nullptr)

  1611.                 break;

  1612. 

  1613.             if (fDescriptor->Label == nullptr || fDescriptor->Label[0] == '\0')

  1614.             {

  1615.                 carla_stderr2("WARNING - Got an invalid label, will not use this plugin");

  1616.                 fDescriptor = nullptr;

  1617.                 break;

  1618.             }

  1619.             if (fDescriptor->run == nullptr)

  1620.             {

  1621.                 carla_stderr2("WARNING - Plugin has no run, cannot use it");

  1622.                 fDescriptor = nullptr;

  1623.                 break;

  1624.             }

  1625. 

  1626.             if (std::strcmp(fDescriptor->Label, label) == 0)

  1627.                 break;

  1628.         }

  1629. 

  1630.         if (fDescriptor == nullptr)

  1631.         {

  1632.             pData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  1633.             return false;

  1634.         }

  1635. 

  1636.         // ---------------------------------------------------------------

  1637.         // get info

  1638. 

  1639.         if (is_ladspa_rdf_descriptor_valid(rdfDescriptor, fDescriptor))

  1640.             fRdfDescriptor = ladspa_rdf_dup(rdfDescriptor);

  1641. 

  1642.         if (name != nullptr && name[0] != '\0')

  1643.             pData->name = pData->engine->getUniquePluginName(name);

  1644.         else if (fRdfDescriptor != nullptr && fRdfDescriptor->Title != nullptr && fRdfDescriptor->Title[0] != '\0')

  1645.             pData->name = pData->engine->getUniquePluginName(fRdfDescriptor->Title);

  1646.         else if (fDescriptor->Name != nullptr && fDescriptor->Name[0] != '\0')

  1647.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Name);

  1648.         else

  1649.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Label);

  1650. 

  1651.         pData->filename = carla_strdup(filename);

  1652. 

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

  1654.         // register client

  1655. 

  1656.         pData->client = pData->engine->addClient(this);

  1657. 

  1658.         if (pData->client == nullptr || ! pData->client->isOk())

  1659.         {

  1660.             pData->engine->setLastError("Failed to register plugin client");

  1661.             return false;

  1662.         }

  1663. 

  1664.         // ---------------------------------------------------------------

  1665.         // initialize plugin

  1666. 

  1667.         if (! addInstance())

  1668.             return false;

  1669. 

  1670.         // ---------------------------------------------------------------

  1671.         // find latency port index

  1672. 

  1673.         for (uint32_t i=0, iCtrl=0, count=getSafePortCount(); i<count; ++i)

  1674.         {

  1675.             const int portType(fDescriptor->PortDescriptors[i]);

  1676. 

  1677.             if (! LADSPA_IS_PORT_CONTROL(portType))

  1678.                 continue;

  1679. 

  1680.             const uint32_t index(iCtrl++);

  1681. 

  1682.             if (! LADSPA_IS_PORT_OUTPUT(portType))

  1683.                 continue;

  1684. 

  1685.             const char* const portName(fDescriptor->PortNames[i]);

  1686.             CARLA_SAFE_ASSERT_BREAK(portName != nullptr);

  1687. 

  1688.             if (std::strcmp(portName, "latency")  == 0 ||

  1689.                 std::strcmp(portName, "_latency") == 0)

  1690.             {

  1691.                 fLatencyIndex = static_cast<int32_t>(index);

  1692.                 break;

  1693.             }

  1694.         }

  1695. 

  1696.         // ---------------------------------------------------------------

  1697.         // check if this is dssi-vst

  1698. 

  1699.         fIsDssiVst = CarlaString(filename).contains("dssi-vst", true);

  1700. 

  1701.         // ---------------------------------------------------------------

  1702.         // set default options

  1703. 

  1704.         pData->options = 0x0;

  1705. 

  1706.         /**/ if (fLatencyIndex >= 0 || fIsDssiVst)

  1707.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  1708.          else if (options & PLUGIN_OPTION_FIXED_BUFFERS)

  1709.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  1710. 

  1711.         /**/ if (pData->engine->getOptions().forceStereo)

  1712.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1713.          else if (options & PLUGIN_OPTION_FORCE_STEREO)

  1714.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1715. 

  1716.         return true;

  1717.     }

  1718. 

  1719.     // -------------------------------------------------------------------

  1720. 

  1721. private:

  1722.     LinkedList<LADSPA_Handle>    fHandles;

  1723.     const LADSPA_Descriptor*     fDescriptor;

  1724.     const LADSPA_RDF_Descriptor* fRdfDescriptor;

  1725. 

  1726.     float** fAudioInBuffers;

  1727.     float** fAudioOutBuffers;

  1728.     float*  fExtraStereoBuffer[2]; // used only if forcedStereoIn and audioOut == 2

  1729.     float*  fParamBuffers;

  1730. 

  1731.     int32_t fLatencyIndex; // -1 if invalid

  1732.     bool    fForcedStereoIn;

  1733.     bool    fForcedStereoOut;

  1734.     bool    fIsDssiVst;

  1735. 

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

  1737. 

  1738.     bool addInstance()

  1739.     {

  1740.         LADSPA_Handle handle;

  1741. 

  1742.         try {

  1743.             handle = fDescriptor->instantiate(fDescriptor, static_cast<ulong>(pData->engine->getSampleRate()));

  1744.         } CARLA_SAFE_EXCEPTION_RETURN_ERR("LADSPA instantiate", "Plugin failed to initialize");

  1745. 

  1746.         for (uint32_t i=0, count=pData->param.count; i<count; ++i)

  1747.         {

  1748.             const int32_t rindex(pData->param.data[i].rindex);

  1749.             CARLA_SAFE_ASSERT_CONTINUE(rindex >= 0);

  1750. 

  1751.             try {

  1752.                 fDescriptor->connect_port(handle, static_cast<ulong>(rindex), &fParamBuffers[i]);

  1753.             } CARLA_SAFE_EXCEPTION("LADSPA connect_port");

  1754.         }

  1755. 

  1756.         if (fHandles.append(handle))

  1757.             return true;

  1758. 

  1759.         try {

  1760.             fDescriptor->cleanup(handle);

  1761.         } CARLA_SAFE_EXCEPTION("LADSPA cleanup");

  1762. 

  1763.         pData->engine->setLastError("Out of memory");

  1764.         return false;

  1765.     }

  1766. 

  1767.     uint32_t getSafePortCount() const noexcept

  1768.     {

  1769.         if (fDescriptor->PortCount == 0)

  1770.             return 0;

  1771. 

  1772.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortDescriptors != nullptr, 0);

  1773.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortRangeHints != nullptr, 0);

  1774.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortNames != nullptr, 0);

  1775. 

  1776.         return static_cast<uint32_t>(fDescriptor->PortCount);

  1777.     }

  1778. 

  1779.     bool getSeparatedParameterNameOrUnit(const char* const paramName, char* const strBuf, const bool wantName) const noexcept

  1780.     {

  1781.         if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, true))

  1782.             return true;

  1783.         if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, false))

  1784.             return true;

  1785.         return false;

  1786.     }

  1787. 

  1788.     static bool _getSeparatedParameterNameOrUnitImpl(const char* const paramName, char* const strBuf,

  1789.                                                      const bool wantName, const bool useBracket) noexcept

  1790.     {

  1791.         const char* const sepBracketStart(std::strstr(paramName, useBracket ? " [" : " ("));

  1792. 

  1793.         if (sepBracketStart == nullptr)

  1794.             return false;

  1795. 

  1796.         const char* const sepBracketEnd(std::strstr(sepBracketStart, useBracket ? "]" : ")"));

  1797. 

  1798.         if (sepBracketEnd == nullptr)

  1799.             return false;

  1800. 

  1801.         const std::size_t unitSize(static_cast<std::size_t>(sepBracketEnd-sepBracketStart-2));

  1802. 

  1803.         if (unitSize > 7) // very unlikely to have such big unit

  1804.             return false;

  1805. 

  1806.         const std::size_t sepIndex(std::strlen(paramName)-unitSize-3);

  1807. 

  1808.         // just in case

  1809.         if (sepIndex+2 >= STR_MAX)

  1810.             return false;

  1811. 

  1812.         if (wantName)

  1813.         {

  1814.             std::strncpy(strBuf, paramName, sepIndex);

  1815.             strBuf[sepIndex] = '\0';

  1816.         }

  1817.         else

  1818.         {

  1819.             std::strncpy(strBuf, paramName+(sepIndex+2), unitSize);

  1820.             strBuf[unitSize] = '\0';

  1821.         }

  1822. 

  1823.         return true;

  1824.     }

  1825. 

  1826.     // -------------------------------------------------------------------

  1827. 

  1828.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginLADSPA)

  1829. };

  1830. 

  1831. // -------------------------------------------------------------------------------------------------------------------

  1832. 

  1833. CarlaPlugin* CarlaPlugin::newLADSPA(const Initializer& init, const LADSPA_RDF_Descriptor* const rdfDescriptor)

  1834. {

  1835.     carla_debug("CarlaPlugin::newLADSPA({%p, \"%s\", \"%s\", \"%s\", " P_INT64 ", %x}, %p)",

  1836.                 init.engine, init.filename, init.name, init.label, init.uniqueId, init.options, rdfDescriptor);

  1837. 

  1838.     CarlaPluginLADSPA* const plugin(new CarlaPluginLADSPA(init.engine, init.id));

  1839. 

  1840.     if (! plugin->init(init.filename, init.name, init.label, init.options, rdfDescriptor))

  1841.     {

  1842.         delete plugin;

  1843.         return nullptr;

  1844.     }

  1845. 

  1846.     return plugin;

  1847. }

  1848. 

  1849. // -------------------------------------------------------------------------------------------------------------------

  1850. 

  1851. CARLA_BACKEND_END_NAMESPACE