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Carla/source/backend/plugin/LadspaPlugin.cpp

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  1. /*

  2.  * Carla LADSPA Plugin

  3.  * Copyright (C) 2011-2013 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. 

  20. #ifdef WANT_LADSPA

  21. 

  22. #include "CarlaLadspaUtils.hpp"

  23. #include "CarlaLibUtils.hpp"

  24. 

  25. CARLA_BACKEND_START_NAMESPACE

  26. 

  27. #if 0

  28. }

  29. #endif

  30. 

  31. class LadspaPlugin : public CarlaPlugin

  32. {

  33. public:

  34.     LadspaPlugin(CarlaEngine* const engine, const unsigned int id)

  35.         : CarlaPlugin(engine, id),

  36.           fHandle(nullptr),

  37.           fHandle2(nullptr),

  38.           fDescriptor(nullptr),

  39.           fRdfDescriptor(nullptr),

  40.           fAudioInBuffers(nullptr),

  41.           fAudioOutBuffers(nullptr),

  42.           fParamBuffers(nullptr)

  43.     {

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

  45.     }

  46. 

  47.     ~LadspaPlugin() override

  48.     {

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

  50. 

  51.         pData->singleMutex.lock();

  52.         pData->masterMutex.lock();

  53. 

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

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

  56. 

  57.         if (pData->active)

  58.         {

  59.             deactivate();

  60.             pData->active = false;

  61.         }

  62. 

  63.         if (fDescriptor != nullptr)

  64.         {

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

  66.             {

  67.                 if (fHandle != nullptr)

  68.                     fDescriptor->cleanup(fHandle);

  69.                 if (fHandle2 != nullptr)

  70.                     fDescriptor->cleanup(fHandle2);

  71.             }

  72. 

  73.             fHandle  = nullptr;

  74.             fHandle2 = nullptr;

  75.             fDescriptor = nullptr;

  76.         }

  77. 

  78.         if (fRdfDescriptor != nullptr)

  79.         {

  80.             delete fRdfDescriptor;

  81.             fRdfDescriptor = nullptr;

  82.         }

  83. 

  84.         clearBuffers();

  85.     }

  86. 

  87.     // -------------------------------------------------------------------

  88.     // Information (base)

  89. 

  90.     PluginType getType() const noexcept override

  91.     {

  92.         return PLUGIN_LADSPA;

  93.     }

  94. 

  95.     PluginCategory getCategory() const override

  96.     {

  97.         if (fRdfDescriptor != nullptr)

  98.         {

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

  100. 

  101.             // Specific Types

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

  103.                 return PLUGIN_CATEGORY_DELAY;

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

  105.                 return PLUGIN_CATEGORY_MODULATOR;

  106.             if (category & (LADSPA_PLUGIN_AMPLIFIER))

  107.                 return PLUGIN_CATEGORY_DYNAMICS;

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

  109.                 return PLUGIN_CATEGORY_UTILITY;

  110. 

  111.             // Pre-set LADSPA Types

  112.             if (LADSPA_IS_PLUGIN_DYNAMICS(category))

  113.                 return PLUGIN_CATEGORY_DYNAMICS;

  114.             if (LADSPA_IS_PLUGIN_AMPLITUDE(category))

  115.                 return PLUGIN_CATEGORY_MODULATOR;

  116.             if (LADSPA_IS_PLUGIN_EQ(category))

  117.                 return PLUGIN_CATEGORY_EQ;

  118.             if (LADSPA_IS_PLUGIN_FILTER(category))

  119.                 return PLUGIN_CATEGORY_FILTER;

  120.             if (LADSPA_IS_PLUGIN_FREQUENCY(category))

  121.                 return PLUGIN_CATEGORY_UTILITY;

  122.             if (LADSPA_IS_PLUGIN_SIMULATOR(category))

  123.                 return PLUGIN_CATEGORY_OTHER;

  124.             if (LADSPA_IS_PLUGIN_TIME(category))

  125.                 return PLUGIN_CATEGORY_DELAY;

  126.             if (LADSPA_IS_PLUGIN_GENERATOR(category))

  127.                 return PLUGIN_CATEGORY_SYNTH;

  128.         }

  129. 

  130.         return getPluginCategoryFromName(pData->name);

  131.     }

  132. 

  133.     long getUniqueId() const override

  134.     {

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

  136. 

  137.         return fDescriptor->UniqueID;

  138.     }

  139. 

  140.     // -------------------------------------------------------------------

  141.     // Information (count)

  142. 

  143.     uint32_t getParameterScalePointCount(const uint32_t parameterId) const override

  144.     {

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

  146. 

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

  148. 

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

  150.         {

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

  152.             return port->ScalePointCount;

  153.         }

  154. 

  155.         return 0;

  156.     }

  157. 

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

  159.     // Information (current data)

  160. 

  161.     // nothing

  162. 

  163.     // -------------------------------------------------------------------

  164.     // Information (per-plugin data)

  165. 

  166.     unsigned int getOptionsAvailable() const override

  167.     {

  168.         const bool isDssiVst = pData->filename.contains("dssi-vst", true);

  169. 

  170.         unsigned int options = 0x0;

  171. 

  172.         if (! isDssiVst)

  173.         {

  174.             options |= PLUGIN_OPTION_FIXED_BUFFERS;

  175. 

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

  177.             {

  178.                 if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  179.                     options |= PLUGIN_OPTION_FORCE_STEREO;

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

  181.                     options |= PLUGIN_OPTION_FORCE_STEREO;

  182.             }

  183.         }

  184. 

  185.         return options;

  186.     }

  187. 

  188.     float getParameterValue(const uint32_t parameterId) const override

  189.     {

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

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

  192. 

  193.         return fParamBuffers[parameterId];

  194.     }

  195. 

  196.     float getParameterScalePointValue(const uint32_t parameterId, const uint32_t scalePointId) const override

  197.     {

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

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

  200.         CARLA_SAFE_ASSERT_RETURN(scalePointId < getParameterScalePointCount(parameterId), 0.0f);

  201. 

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

  203. 

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

  205.         {

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

  207. 

  208.             if (scalePointId < port->ScalePointCount)

  209.             {

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

  211.                 return scalePoint->Value;

  212.             }

  213.         }

  214. 

  215.         return 0.0f;

  216.     }

  217. 

  218.     void getLabel(char* const strBuf) const override

  219.     {

  220.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  221. 

  222.         if (fDescriptor->Label != nullptr)

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

  224.         else

  225.             CarlaPlugin::getLabel(strBuf);

  226.     }

  227. 

  228.     void getMaker(char* const strBuf) const override

  229.     {

  230.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  231. 

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

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

  234.         else if (fDescriptor->Maker != nullptr)

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

  236.         else

  237.             CarlaPlugin::getMaker(strBuf);

  238.     }

  239. 

  240.     void getCopyright(char* const strBuf) const override

  241.     {

  242.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  243. 

  244.         if (fDescriptor->Copyright != nullptr)

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

  246.         else

  247.             CarlaPlugin::getCopyright(strBuf);

  248.     }

  249. 

  250.     void getRealName(char* const strBuf) const override

  251.     {

  252.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  253. 

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

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

  256.         else if (fDescriptor->Name != nullptr)

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

  258.         else

  259.             CarlaPlugin::getRealName(strBuf);

  260.     }

  261. 

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

  263.     {

  264.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  266. 

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

  268. 

  269.         if (rindex < static_cast<int32_t>(fDescriptor->PortCount))

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

  271.         else

  272.             CarlaPlugin::getParameterName(parameterId, strBuf);

  273.     }

  274. 

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

  276.     {

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

  278. 

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

  280. 

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

  282.         {

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

  284. 

  285.             if (LADSPA_PORT_HAS_LABEL(port->Hints) && port->Label != nullptr)

  286.             {

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

  288.                 return;

  289.             }

  290.         }

  291. 

  292.         CarlaPlugin::getParameterSymbol(parameterId, strBuf);

  293.     }

  294. 

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

  296.     {

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

  298. 

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

  300. 

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

  302.         {

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

  304. 

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

  306.             {

  307.                 switch (port->Unit)

  308.                 {

  309.                 case LADSPA_UNIT_DB:

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

  311.                     return;

  312.                 case LADSPA_UNIT_COEF:

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

  314.                     return;

  315.                 case LADSPA_UNIT_HZ:

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

  317.                     return;

  318.                 case LADSPA_UNIT_S:

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

  320.                     return;

  321.                 case LADSPA_UNIT_MS:

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

  323.                     return;

  324.                 case LADSPA_UNIT_MIN:

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

  326.                     return;

  327.                 }

  328.             }

  329.         }

  330. 

  331.         CarlaPlugin::getParameterUnit(parameterId, strBuf);

  332.     }

  333. 

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

  335.     {

  336.         CARLA_SAFE_ASSERT_RETURN(fRdfDescriptor != nullptr,);

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

  338.         CARLA_SAFE_ASSERT_RETURN(scalePointId < getParameterScalePointCount(parameterId),);

  339. 

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

  341. 

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

  343.         {

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

  345. 

  346.             if (scalePointId < port->ScalePointCount)

  347.             {

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

  349. 

  350.                 if (scalePoint->Label != nullptr)

  351.                 {

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

  353.                     return;

  354.                 }

  355.             }

  356.         }

  357. 

  358.         CarlaPlugin::getParameterScalePointLabel(parameterId, scalePointId, strBuf);

  359.     }

  360. 

  361.     // -------------------------------------------------------------------

  362.     // Set data (state)

  363. 

  364.     // nothing

  365. 

  366.     // -------------------------------------------------------------------

  367.     // Set data (internal stuff)

  368. 

  369.     // nothing

  370. 

  371.     // -------------------------------------------------------------------

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

  373. 

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

  375.     {

  376.         CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr,);

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

  378. 

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

  380.         fParamBuffers[parameterId] = fixedValue;

  381. 

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

  383.     }

  384. 

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

  386.     // Set gui stuff

  387. 

  388.     // nothing

  389. 

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

  391.     // Plugin state

  392. 

  393.     void reload() override

  394.     {

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

  396.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  397.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  399. 

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

  401. 

  402.         // Safely disable plugin for reload

  403.         const ScopedDisabler sd(this);

  404. 

  405.         if (pData->active)

  406.             deactivate();

  407. 

  408.         clearBuffers();

  409. 

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

  411.         const uint32_t portCount(static_cast<uint32_t>(fDescriptor->PortCount));

  412. 

  413.         uint32_t aIns, aOuts, params, j;

  414.         aIns = aOuts = params = 0;

  415. 

  416.         bool forcedStereoIn, forcedStereoOut;

  417.         forcedStereoIn = forcedStereoOut = false;

  418. 

  419.         bool needsCtrlIn, needsCtrlOut;

  420.         needsCtrlIn = needsCtrlOut = false;

  421. 

  422.         if (portCount > 0)

  423.         {

  424.             CARLA_ASSERT(fDescriptor->PortDescriptors != nullptr);

  425.             CARLA_ASSERT(fDescriptor->PortRangeHints != nullptr);

  426.             CARLA_ASSERT(fDescriptor->PortNames != nullptr);

  427. 

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

  429.             {

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

  431. 

  432.                 if (LADSPA_IS_PORT_AUDIO(portType))

  433.                 {

  434.                     if (LADSPA_IS_PORT_INPUT(portType))

  435.                         aIns += 1;

  436.                     else if (LADSPA_IS_PORT_OUTPUT(portType))

  437.                         aOuts += 1;

  438.                 }

  439.                 else if (LADSPA_IS_PORT_CONTROL(portType))

  440.                     params += 1;

  441.             }

  442.         }

  443. 

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

  445.         {

  446.             if (fHandle2 == nullptr)

  447.                 fHandle2 = fDescriptor->instantiate(fDescriptor, (unsigned long)sampleRate);

  448. 

  449.             if (fHandle2 != nullptr)

  450.             {

  451.                 if (aIns == 1)

  452.                 {

  453.                     aIns = 2;

  454.                     forcedStereoIn = true;

  455.                 }

  456. 

  457.                 if (aOuts == 1)

  458.                 {

  459.                     aOuts = 2;

  460.                     forcedStereoOut = true;

  461.                 }

  462.             }

  463.         }

  464. 

  465.         if (aIns > 0)

  466.         {

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

  468.             fAudioInBuffers = new float*[aIns];

  469. 

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

  471.                 fAudioInBuffers[i] = nullptr;

  472.         }

  473. 

  474.         if (aOuts > 0)

  475.         {

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

  477.             fAudioOutBuffers = new float*[aOuts];

  478.             needsCtrlIn = true;

  479. 

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

  481.                 fAudioOutBuffers[i] = nullptr;

  482.         }

  483. 

  484.         if (params > 0)

  485.         {

  486.             pData->param.createNew(params);

  487. 

  488.             fParamBuffers = new float[params];

  489. #ifdef USE_JUCE

  490.             FloatVectorOperations::clear(fParamBuffers, params);

  491. #else

  492. #endif

  493.         }

  494. 

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

  496.         CarlaString portName;

  497. 

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

  499.         {

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

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

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

  503. 

  504.             CARLA_ASSERT(fDescriptor->PortNames[i] != nullptr);

  505. 

  506.             if (LADSPA_IS_PORT_AUDIO(portType))

  507.             {

  508.                 portName.clear();

  509. 

  510.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  511.                 {

  512.                     portName  = pData->name;

  513.                     portName += ":";

  514.                 }

  515. 

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

  517.                 portName.truncate(portNameSize);

  518. 

  519.                 if (LADSPA_IS_PORT_INPUT(portType))

  520.                 {

  521.                     j = iAudioIn++;

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

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

  524. 

  525.                     if (forcedStereoIn)

  526.                     {

  527.                         portName += "_2";

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

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

  530.                     }

  531.                 }

  532.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  533.                 {

  534.                     j = iAudioOut++;

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

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

  537. 

  538.                     if (forcedStereoOut)

  539.                     {

  540.                         portName += "_2";

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

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

  543.                     }

  544.                 }

  545.                 else

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

  547.             }

  548.             else if (LADSPA_IS_PORT_CONTROL(portType))

  549.             {

  550.                 j = iCtrl++;

  551.                 pData->param.data[j].index  = j;

  552.                 pData->param.data[j].rindex = i;

  553.                 pData->param.data[j].hints  = 0x0;

  554.                 pData->param.data[j].midiChannel = 0;

  555.                 pData->param.data[j].midiCC = -1;

  556. 

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

  558. 

  559.                 // min value

  560.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  561.                     min = portRangeHints.LowerBound;

  562.                 else

  563.                     min = 0.0f;

  564. 

  565.                 // max value

  566.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  567.                     max = portRangeHints.UpperBound;

  568.                 else

  569.                     max = 1.0f;

  570. 

  571.                 if (min > max)

  572.                     max = min;

  573.                 else if (max < min)

  574.                     min = max;

  575. 

  576.                 if (max - min == 0.0f)

  577.                 {

  578.                     carla_stderr2("WARNING - Broken plugin parameter '%s': max - min == 0.0f", fDescriptor->PortNames[i]);

  579.                     max = min + 0.1f;

  580.                 }

  581. 

  582.                 // default value

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

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

  585.                 else

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

  587. 

  588.                 if (def < min)

  589.                     def = min;

  590.                 else if (def > max)

  591.                     def = max;

  592. 

  593.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  594.                 {

  595.                     min *= sampleRate;

  596.                     max *= sampleRate;

  597.                     def *= sampleRate;

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

  599.                 }

  600. 

  601.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  602.                 {

  603.                     step = max - min;

  604.                     stepSmall = step;

  605.                     stepLarge = step;

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

  607.                 }

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

  609.                 {

  610.                     step = 1.0f;

  611.                     stepSmall = 1.0f;

  612.                     stepLarge = 10.0f;

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

  614.                 }

  615.                 else

  616.                 {

  617.                     float range = max - min;

  618.                     step = range/100.0f;

  619.                     stepSmall = range/1000.0f;

  620.                     stepLarge = range/10.0f;

  621.                 }

  622. 

  623.                 if (LADSPA_IS_PORT_INPUT(portType))

  624.                 {

  625.                     pData->param.data[j].hints |= PARAMETER_IS_INPUT;

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

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

  628.                     needsCtrlIn = true;

  629.                 }

  630.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  631.                 {

  632.                     if (std::strcmp(fDescriptor->PortNames[i], "latency") == 0 || std::strcmp(fDescriptor->PortNames[i], "_latency") == 0)

  633.                     {

  634.                         min = 0.0f;

  635.                         max = sampleRate;

  636.                         def = 0.0f;

  637.                         step = 1.0f;

  638.                         stepSmall = 1.0f;

  639.                         stepLarge = 1.0f;

  640. 

  641.                         //pData->param.data[j].type  = PARAMETER_LATENCY;

  642.                         pData->param.data[j].hints = 0;

  643.                     }

  644.                     else if (std::strcmp(fDescriptor->PortNames[i], "_sample-rate") == 0)

  645.                     {

  646.                         def = sampleRate;

  647.                         step = 1.0f;

  648.                         stepSmall = 1.0f;

  649.                         stepLarge = 1.0f;

  650. 

  651.                         //pData->param.data[j].type  = PARAMETER_SAMPLE_RATE;

  652.                         pData->param.data[j].hints = 0;

  653.                     }

  654.                     else

  655.                     {

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

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

  658.                         needsCtrlOut = true;

  659.                     }

  660.                 }

  661.                 else

  662.                 {

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

  664.                 }

  665. 

  666.                 // extra parameter hints

  667.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

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

  669. 

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

  671.                 if (hasPortRDF && fRdfDescriptor->Ports[i].ScalePointCount > 1)

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

  673. 

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

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

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

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

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

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

  680. 

  681.                 // Start parameters in their default values

  682.                 fParamBuffers[j] = def;

  683. 

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

  685. 

  686.                 if (fHandle2 != nullptr)

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

  688.             }

  689.             else

  690.             {

  691.                 // Not Audio or Control

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

  693. 

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

  695. 

  696.                 if (fHandle2 != nullptr)

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

  698.             }

  699.         }

  700. 

  701.         if (needsCtrlIn)

  702.         {

  703.             portName.clear();

  704. 

  705.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  706.             {

  707.                 portName  = pData->name;

  708.                 portName += ":";

  709.             }

  710. 

  711.             portName += "events-in";

  712.             portName.truncate(portNameSize);

  713. 

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

  715.         }

  716. 

  717.         if (needsCtrlOut)

  718.         {

  719.             portName.clear();

  720. 

  721.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  722.             {

  723.                 portName  = pData->name;

  724.                 portName += ":";

  725.             }

  726. 

  727.             portName += "events-out";

  728.             portName.truncate(portNameSize);

  729. 

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

  731.         }

  732. 

  733.         if (forcedStereoIn || forcedStereoOut)

  734.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  735.         else

  736.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  737. 

  738.         // plugin hints

  739.         pData->hints = 0x0;

  740. 

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

  742.             pData->hints |= PLUGIN_IS_RTSAFE;

  743. 

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

  745.             pData->hints |= PLUGIN_CAN_DRYWET;

  746. 

  747.         if (aOuts > 0)

  748.             pData->hints |= PLUGIN_CAN_VOLUME;

  749. 

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

  751.             pData->hints |= PLUGIN_CAN_BALANCE;

  752. 

  753.         // extra plugin hints

  754.         pData->extraHints = 0x0;

  755. 

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

  757.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  758. 

  759.         // check latency

  760.         if (pData->hints & PLUGIN_CAN_DRYWET)

  761.         {

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

  763.             {

  764.                 //if (pData->param.data[i].type != PARAMETER_LATENCY)

  765.                 //    continue;

  766. 

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

  768. 

  769.                 float tmpIn[aIns][2];

  770.                 float tmpOut[aOuts][2];

  771. 

  772.                 for (j=0; j < aIns; ++j)

  773.                 {

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

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

  776. 

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

  778.                 }

  779. 

  780.                 for (j=0; j < aOuts; ++j)

  781.                 {

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

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

  784. 

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

  786.                 }

  787. 

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

  789.                     fDescriptor->activate(fHandle);

  790. 

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

  792. 

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

  794.                     fDescriptor->deactivate(fHandle);

  795. 

  796.                 const uint32_t latency = (uint32_t)fParamBuffers[i];

  797. 

  798.                 if (pData->latency != latency)

  799.                 {

  800.                     pData->latency = latency;

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

  802.                     pData->recreateLatencyBuffers();

  803.                 }

  804. 

  805.                 break;

  806.             }

  807.         }

  808. 

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

  810. 

  811.         if (pData->active)

  812.             activate();

  813. 

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

  815.     }

  816. 

  817.     // -------------------------------------------------------------------

  818.     // Plugin processing

  819. 

  820.     void activate() override

  821.     {

  822.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  823.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  824. 

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

  826.         {

  827.             fDescriptor->activate(fHandle);

  828. 

  829.             if (fHandle2 != nullptr)

  830.                 fDescriptor->activate(fHandle2);

  831.         }

  832.     }

  833. 

  834.     void deactivate() override

  835.     {

  836.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  837.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  838. 

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

  840.         {

  841.             fDescriptor->deactivate(fHandle);

  842. 

  843.             if (fHandle2 != nullptr)

  844.                 fDescriptor->deactivate(fHandle2);

  845.         }

  846.     }

  847. 

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

  849.     {

  850.         // --------------------------------------------------------------------------------------------------------

  851.         // Check if active

  852. 

  853.         if (! pData->active)

  854.         {

  855.             // disable any output sound

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

  857.             {

  858. #ifdef USE_JUCE

  859.                 FloatVectorOperations::clear(outBuffer[i], frames);

  860. #else

  861. #endif

  862.             }

  863. 

  864.             return;

  865.         }

  866. 

  867.         // --------------------------------------------------------------------------------------------------------

  868.         // Check if needs reset

  869. 

  870.         if (pData->needsReset)

  871.         {

  872.             if (pData->latency > 0)

  873.             {

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

  875.                 {

  876. #ifdef USE_JUCE

  877.                     FloatVectorOperations::clear(pData->latencyBuffers[i], pData->latency);

  878. #else

  879. #endif

  880.                 }

  881.             }

  882. 

  883.             pData->needsReset = false;

  884.         }

  885. 

  886.         // --------------------------------------------------------------------------------------------------------

  887.         // Event Input and Processing

  888. 

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

  890.         {

  891.             // ----------------------------------------------------------------------------------------------------

  892.             // Event Input (System)

  893. 

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

  895. 

  896.             uint32_t time, numEvents = pData->event.portIn->getEventCount();

  897.             uint32_t timeOffset = 0;

  898. 

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

  900.             {

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

  902. 

  903.                 time = event.time;

  904. 

  905.                 if (time >= frames)

  906.                     continue;

  907. 

  908.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  909. 

  910.                 if (time > timeOffset && isSampleAccurate)

  911.                 {

  912.                     if (processSingle(inBuffer, outBuffer, time - timeOffset, timeOffset))

  913.                         timeOffset = time;

  914.                 }

  915. 

  916.                 // Control change

  917.                 switch (event.type)

  918.                 {

  919.                 case kEngineEventTypeNull:

  920.                     break;

  921. 

  922.                 case kEngineEventTypeControl:

  923.                 {

  924.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  925. 

  926.                     switch (ctrlEvent.type)

  927.                     {

  928.                     case kEngineControlEventTypeNull:

  929.                         break;

  930. 

  931.                     case kEngineControlEventTypeParameter:

  932.                     {

  933. #ifndef BUILD_BRIDGE

  934.                         // Control backend stuff

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

  936.                         {

  937.                             float value;

  938. 

  939.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) > 0)

  940.                             {

  941.                                 value = ctrlEvent.value;

  942.                                 setDryWet(value, false, false);

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

  944.                             }

  945. 

  946.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) > 0)

  947.                             {

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

  949.                                 setVolume(value, false, false);

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

  951.                             }

  952. 

  953.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) > 0)

  954.                             {

  955.                                 float left, right;

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

  957. 

  958.                                 if (value < 0.0f)

  959.                                 {

  960.                                     left  = -1.0f;

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

  962.                                 }

  963.                                 else if (value > 0.0f)

  964.                                 {

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

  966.                                     right = 1.0f;

  967.                                 }

  968.                                 else

  969.                                 {

  970.                                     left  = -1.0f;

  971.                                     right = 1.0f;

  972.                                 }

  973. 

  974.                                 setBalanceLeft(left, false, false);

  975.                                 setBalanceRight(right, false, false);

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

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

  978.                             }

  979.                         }

  980. #endif

  981. 

  982.                         // Control plugin parameters

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

  984.                         {

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

  986.                                 continue;

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

  988.                                 continue;

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

  990.                                 continue;

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

  992.                                 continue;

  993. 

  994.                             float value;

  995. 

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

  997.                             {

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

  999.                             }

  1000.                             else

  1001.                             {

  1002.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1003. 

  1004.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1005.                                     value = std::rint(value);

  1006.                             }

  1007. 

  1008.                             setParameterValue(k, value, false, false, false);

  1009.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1010.                         }

  1011. 

  1012.                         break;

  1013.                     }

  1014. 

  1015.                     case kEngineControlEventTypeMidiBank:

  1016.                     case kEngineControlEventTypeMidiProgram:

  1017.                     case kEngineControlEventTypeAllSoundOff:

  1018.                     case kEngineControlEventTypeAllNotesOff:

  1019.                         break;

  1020.                     }

  1021. 

  1022.                     break;

  1023.                 }

  1024. 

  1025.                 case kEngineEventTypeMidi:

  1026.                     // ignored in LADSPA

  1027.                     break;

  1028.                 }

  1029.             }

  1030. 

  1031.             pData->postRtEvents.trySplice();

  1032. 

  1033.             if (frames > timeOffset)

  1034.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset);

  1035. 

  1036.         } // End of Event Input and Processing

  1037. 

  1038.         // --------------------------------------------------------------------------------------------------------

  1039.         // Plugin processing (no events)

  1040. 

  1041.         else

  1042.         {

  1043.             processSingle(inBuffer, outBuffer, frames, 0);

  1044. 

  1045.         } // End of Plugin processing (no events)

  1046. 

  1047.         CARLA_PROCESS_CONTINUE_CHECK;

  1048. 

  1049.         // --------------------------------------------------------------------------------------------------------

  1050.         // Control Output

  1051. 

  1052.         if (pData->event.portOut != nullptr)

  1053.         {

  1054.             uint8_t  channel;

  1055.             uint16_t param;

  1056.             float    value;

  1057. 

  1058.             for (uint32_t k=0; k < pData->param.count; ++k)

  1059.             {

  1060.                 if (pData->param.data[k].hints & PARAMETER_IS_INPUT)

  1061.                     continue;

  1062. 

  1063.                 pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1064. 

  1065.                 if (pData->param.data[k].midiCC > 0)

  1066.                 {

  1067.                     channel = pData->param.data[k].midiChannel;

  1068.                     param   = static_cast<uint16_t>(pData->param.data[k].midiCC);

  1069.                     value   = pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]);

  1070.                     pData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value);

  1071.                 }

  1072.             }

  1073. 

  1074.         } // End of Control Output

  1075.     }

  1076. 

  1077.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1078.     {

  1079.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1080. 

  1081.         if (pData->audioIn.count > 0)

  1082.         {

  1083.             CARLA_SAFE_ASSERT_RETURN(inBuffer != nullptr, false);

  1084.         }

  1085.         if (pData->audioOut.count > 0)

  1086.         {

  1087.             CARLA_SAFE_ASSERT_RETURN(outBuffer != nullptr, false);

  1088.         }

  1089. 

  1090.         // --------------------------------------------------------------------------------------------------------

  1091.         // Try lock, silence otherwise

  1092. 

  1093.         if (pData->engine->isOffline())

  1094.         {

  1095.             pData->singleMutex.lock();

  1096.         }

  1097.         else if (! pData->singleMutex.tryLock())

  1098.         {

  1099.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1100.             {

  1101.                 for (uint32_t k=0; k < frames; ++k)

  1102.                     outBuffer[i][k+timeOffset] = 0.0f;

  1103.             }

  1104. 

  1105.             return false;

  1106.         }

  1107. 

  1108.         // --------------------------------------------------------------------------------------------------------

  1109.         // Reset audio buffers

  1110. 

  1111.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1112.         {

  1113. #ifdef USE_JUCE

  1114.             FloatVectorOperations::copy(fAudioInBuffers[i], inBuffer[i]+timeOffset, frames);

  1115. #else

  1116. #endif

  1117.         }

  1118. 

  1119.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1120.         {

  1121. #ifdef USE_JUCE

  1122.             FloatVectorOperations::clear(fAudioOutBuffers[i], frames);

  1123. #else

  1124. #endif

  1125.         }

  1126. 

  1127.         // --------------------------------------------------------------------------------------------------------

  1128.         // Run plugin

  1129. 

  1130.         fDescriptor->run(fHandle, frames);

  1131. 

  1132.         if (fHandle2 != nullptr)

  1133.             fDescriptor->run(fHandle2, frames);

  1134. 

  1135. #ifndef BUILD_BRIDGE

  1136.         // --------------------------------------------------------------------------------------------------------

  1137.         // Post-processing (dry/wet, volume and balance)

  1138. 

  1139.         {

  1140.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && pData->postProc.dryWet != 1.0f;

  1141.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && (pData->postProc.balanceLeft != -1.0f || pData->postProc.balanceRight != 1.0f);

  1142. 

  1143.             bool isPair;

  1144.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1145. 

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

  1147.             {

  1148.                 // Dry/Wet

  1149.                 if (doDryWet)

  1150.                 {

  1151.                     for (uint32_t k=0; k < frames; ++k)

  1152.                     {

  1153.                         // TODO

  1154.                         //if (k < pData->latency && pData->latency < frames)

  1155.                         //    bufValue = (pData->audioIn.count == 1) ? pData->latencyBuffers[0][k] : pData->latencyBuffers[i][k];

  1156.                         //else

  1157.                         //    bufValue = (pData->audioIn.count == 1) ? inBuffer[0][k-m_latency] : inBuffer[i][k-m_latency];

  1158. 

  1159.                         bufValue = fAudioInBuffers[(pData->audioIn.count == 1) ? 0 : i][k];

  1160.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1161.                     }

  1162.                 }

  1163. 

  1164.                 // Balance

  1165.                 if (doBalance)

  1166.                 {

  1167.                     isPair = (i % 2 == 0);

  1168. 

  1169.                     if (isPair)

  1170.                     {

  1171.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1172. #ifdef USE_JUCE

  1173.                         FloatVectorOperations::copy(oldBufLeft, fAudioOutBuffers[i], frames);

  1174. #else

  1175. #endif

  1176.                     }

  1177. 

  1178.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1179.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1180. 

  1181.                     for (uint32_t k=0; k < frames; ++k)

  1182.                     {

  1183.                         if (isPair)

  1184.                         {

  1185.                             // left

  1186.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1187.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1188.                         }

  1189.                         else

  1190.                         {

  1191.                             // right

  1192.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1193.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1194.                         }

  1195.                     }

  1196.                 }

  1197. 

  1198.                 // Volume (and buffer copy)

  1199.                 {

  1200.                     for (uint32_t k=0; k < frames; ++k)

  1201.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1202.                 }

  1203.             }

  1204. 

  1205. #if 0

  1206.             // Latency, save values for next callback, TODO

  1207.             if (pData->latency > 0 && pData->latency < frames)

  1208.             {

  1209.                 for (i=0; i < pData->audioIn.count; ++i)

  1210.                     FloatVectorOperations::copy(pData->latencyBuffers[i], inBuffer[i] + (frames - pData->latency), pData->latency);

  1211.             }

  1212. #endif

  1213.         } // End of Post-processing

  1214. 

  1215. #else // BUILD_BRIDGE

  1216.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1217.         {

  1218.             for (uint32_t k=0; k < frames; ++k)

  1219.                 outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1220.         }

  1221. #endif

  1222. 

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

  1224. 

  1225.         pData->singleMutex.unlock();

  1226.         return true;

  1227.     }

  1228. 

  1229.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1230.     {

  1231.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1232.         carla_debug("LadspaPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1233. 

  1234.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1235.         {

  1236.             if (fAudioInBuffers[i] != nullptr)

  1237.                 delete[] fAudioInBuffers[i];

  1238.             fAudioInBuffers[i] = new float[newBufferSize];

  1239.         }

  1240. 

  1241.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1242.         {

  1243.             if (fAudioOutBuffers[i] != nullptr)

  1244.                 delete[] fAudioOutBuffers[i];

  1245.             fAudioOutBuffers[i] = new float[newBufferSize];

  1246.         }

  1247. 

  1248.         if (fHandle2 == nullptr)

  1249.         {

  1250.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1251.             {

  1252.                 CARLA_ASSERT(fAudioInBuffers[i] != nullptr);

  1253.                 fDescriptor->connect_port(fHandle, pData->audioIn.ports[i].rindex, fAudioInBuffers[i]);

  1254.             }

  1255. 

  1256.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1257.             {

  1258.                 CARLA_ASSERT(fAudioOutBuffers[i] != nullptr);

  1259.                 fDescriptor->connect_port(fHandle, pData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  1260.             }

  1261.         }

  1262.         else

  1263.         {

  1264.             if (pData->audioIn.count > 0)

  1265.             {

  1266.                 CARLA_ASSERT(pData->audioIn.count == 2);

  1267.                 CARLA_ASSERT(fAudioInBuffers[0] != nullptr);

  1268.                 CARLA_ASSERT(fAudioInBuffers[1] != nullptr);

  1269. 

  1270.                 fDescriptor->connect_port(fHandle,  pData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  1271.                 fDescriptor->connect_port(fHandle2, pData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  1272.             }

  1273. 

  1274.             if (pData->audioOut.count > 0)

  1275.             {

  1276.                 CARLA_ASSERT(pData->audioOut.count == 2);

  1277.                 CARLA_ASSERT(fAudioOutBuffers[0] != nullptr);

  1278.                 CARLA_ASSERT(fAudioOutBuffers[1] != nullptr);

  1279. 

  1280.                 fDescriptor->connect_port(fHandle,  pData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  1281.                 fDescriptor->connect_port(fHandle2, pData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  1282.             }

  1283.         }

  1284. 

  1285.         carla_debug("LadspaPlugin::bufferSizeChanged(%i) - end", newBufferSize);

  1286.     }

  1287. 

  1288.     void sampleRateChanged(const double newSampleRate) override

  1289.     {

  1290.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  1291.         carla_debug("LadspaPlugin::sampleRateChanged(%g) - start", newSampleRate);

  1292. 

  1293.         // TODO

  1294.         (void)newSampleRate;

  1295. 

  1296.         carla_debug("LadspaPlugin::sampleRateChanged(%g) - end", newSampleRate);

  1297.     }

  1298. 

  1299.     // -------------------------------------------------------------------

  1300.     // Plugin buffers

  1301. 

  1302.     void clearBuffers() override

  1303.     {

  1304.         carla_debug("LadspaPlugin::clearBuffers() - start");

  1305. 

  1306.         if (fAudioInBuffers != nullptr)

  1307.         {

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

  1309.             {

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

  1311.                 {

  1312.                     delete[] fAudioInBuffers[i];

  1313.                     fAudioInBuffers[i] = nullptr;

  1314.                 }

  1315.             }

  1316. 

  1317.             delete[] fAudioInBuffers;

  1318.             fAudioInBuffers = nullptr;

  1319.         }

  1320. 

  1321.         if (fAudioOutBuffers != nullptr)

  1322.         {

  1323.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1324.             {

  1325.                 if (fAudioOutBuffers[i] != nullptr)

  1326.                 {

  1327.                     delete[] fAudioOutBuffers[i];

  1328.                     fAudioOutBuffers[i] = nullptr;

  1329.                 }

  1330.             }

  1331. 

  1332.             delete[] fAudioOutBuffers;

  1333.             fAudioOutBuffers = nullptr;

  1334.         }

  1335. 

  1336.         if (fParamBuffers != nullptr)

  1337.         {

  1338.             delete[] fParamBuffers;

  1339.             fParamBuffers = nullptr;

  1340.         }

  1341. 

  1342.         CarlaPlugin::clearBuffers();

  1343. 

  1344.         carla_debug("LadspaPlugin::clearBuffers() - end");

  1345.     }

  1346. 

  1347.     // -------------------------------------------------------------------

  1348. 

  1349.     const void* getExtraStuff() const noexcept override

  1350.     {

  1351.         return fRdfDescriptor;

  1352.     }

  1353. 

  1354.     bool init(const char* const filename, const char* const name, const char* const label, const LADSPA_RDF_Descriptor* const rdfDescriptor)

  1355.     {

  1356.         // ---------------------------------------------------------------

  1357.         // first checks

  1358. 

  1359.         if (pData->engine == nullptr)

  1360.         {

  1361.             return false;

  1362.         }

  1363. 

  1364.         if (pData->client != nullptr)

  1365.         {

  1366.             pData->engine->setLastError("Plugin client is already registered");

  1367.             return false;

  1368.         }

  1369. 

  1370.         if (filename == nullptr || filename[0] == '\0')

  1371.         {

  1372.             pData->engine->setLastError("null filename");

  1373.             return false;

  1374.         }

  1375. 

  1376.         if (label == nullptr || label[0] == '\0')

  1377.         {

  1378.             pData->engine->setLastError("null label");

  1379.             return false;

  1380.         }

  1381. 

  1382.         // ---------------------------------------------------------------

  1383.         // open DLL

  1384. 

  1385.         if (! pData->libOpen(filename))

  1386.         {

  1387.             pData->engine->setLastError(lib_error(filename));

  1388.             return false;

  1389.         }

  1390. 

  1391.         // ---------------------------------------------------------------

  1392.         // get DLL main entry

  1393. 

  1394.         const LADSPA_Descriptor_Function descFn = (LADSPA_Descriptor_Function)pData->libSymbol("ladspa_descriptor");

  1395. 

  1396.         if (descFn == nullptr)

  1397.         {

  1398.             pData->engine->setLastError("Could not find the LASDPA Descriptor in the plugin library");

  1399.             return false;

  1400.         }

  1401. 

  1402.         // ---------------------------------------------------------------

  1403.         // get descriptor that matches label

  1404. 

  1405.         unsigned long i = 0;

  1406.         while ((fDescriptor = descFn(i++)) != nullptr)

  1407.         {

  1408.             if (fDescriptor->Label != nullptr && std::strcmp(fDescriptor->Label, label) == 0)

  1409.                 break;

  1410.         }

  1411. 

  1412.         if (fDescriptor == nullptr)

  1413.         {

  1414.             pData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  1415.             return false;

  1416.         }

  1417. 

  1418.         // ---------------------------------------------------------------

  1419.         // get info

  1420. 

  1421.         if (is_ladspa_rdf_descriptor_valid(rdfDescriptor, fDescriptor))

  1422.             fRdfDescriptor = ladspa_rdf_dup(rdfDescriptor);

  1423. 

  1424.         if (name != nullptr)

  1425.             pData->name = pData->engine->getUniquePluginName(name);

  1426.         else if (fRdfDescriptor != nullptr && fRdfDescriptor->Title != nullptr)

  1427.             pData->name = pData->engine->getUniquePluginName(fRdfDescriptor->Title);

  1428.         else if (fDescriptor->Name != nullptr)

  1429.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Name);

  1430.         else

  1431.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Label);

  1432. 

  1433.         pData->filename = filename;

  1434. 

  1435.         CARLA_ASSERT(pData->name.isNotEmpty());

  1436.         CARLA_ASSERT(pData->filename.isNotEmpty());

  1437. 

  1438.         // ---------------------------------------------------------------

  1439.         // register client

  1440. 

  1441.         pData->client = pData->engine->addClient(this);

  1442. 

  1443.         if (pData->client == nullptr || ! pData->client->isOk())

  1444.         {

  1445.             pData->engine->setLastError("Failed to register plugin client");

  1446.             return false;

  1447.         }

  1448. 

  1449.         // ---------------------------------------------------------------

  1450.         // initialize plugin

  1451. 

  1452.         fHandle = fDescriptor->instantiate(fDescriptor, (unsigned long)pData->engine->getSampleRate());

  1453. 

  1454.         if (fHandle == nullptr)

  1455.         {

  1456.             pData->engine->setLastError("Plugin failed to initialize");

  1457.             return false;

  1458.         }

  1459. 

  1460.         // ---------------------------------------------------------------

  1461.         // load plugin settings

  1462. 

  1463.         {

  1464.             const bool isDssiVst = pData->filename.contains("dssi-vst", true);

  1465. 

  1466.             // set default options

  1467.             pData->options = 0x0;

  1468. 

  1469.             if (isDssiVst)

  1470.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  1471. 

  1472.             if (pData->engine->getOptions().forceStereo)

  1473.                 pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1474. 

  1475.             // load settings

  1476.             pData->idStr  = "LADSPA/";

  1477.             pData->idStr += std::strrchr(filename, OS_SEP)+1;

  1478.             pData->idStr += "/";

  1479.             pData->idStr += CarlaString(getUniqueId());

  1480.             pData->idStr += "/";

  1481.             pData->idStr += label;

  1482.             pData->options = pData->loadSettings(pData->options, getOptionsAvailable());

  1483. 

  1484.             // ignore settings, we need this anyway

  1485.             if (isDssiVst)

  1486.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  1487.         }

  1488. 

  1489.         return true;

  1490.     }

  1491. 

  1492. private:

  1493.     LADSPA_Handle fHandle;

  1494.     LADSPA_Handle fHandle2;

  1495.     const LADSPA_Descriptor*     fDescriptor;

  1496.     const LADSPA_RDF_Descriptor* fRdfDescriptor;

  1497. 

  1498.     float** fAudioInBuffers;

  1499.     float** fAudioOutBuffers;

  1500.     float*  fParamBuffers;

  1501. 

  1502.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(LadspaPlugin)

  1503. };

  1504. 

  1505. CARLA_BACKEND_END_NAMESPACE

  1506. 

  1507. #else // WANT_LADSPA

  1508. # warning Building without LADSPA support

  1509. #endif

  1510. 

  1511. CARLA_BACKEND_START_NAMESPACE

  1512. 

  1513. CarlaPlugin* CarlaPlugin::newLADSPA(const Initializer& init, const LADSPA_RDF_Descriptor* const rdfDescriptor)

  1514. {

  1515.     carla_debug("CarlaPlugin::newLADSPA({%p, \"%s\", \"%s\", \"%s\"}, %p)", init.engine, init.filename, init.name, init.label, rdfDescriptor);

  1516. 

  1517. #ifdef WANT_LADSPA

  1518.     LadspaPlugin* const plugin(new LadspaPlugin(init.engine, init.id));

  1519. 

  1520.     if (! plugin->init(init.filename, init.name, init.label, rdfDescriptor))

  1521.     {

  1522.         delete plugin;

  1523.         return nullptr;

  1524.     }

  1525. 

  1526.     plugin->reload();

  1527. 

  1528.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && ! plugin->canRunInRack())

  1529.     {

  1530.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo LADSPA plugins, sorry!");

  1531.         delete plugin;

  1532.         return nullptr;

  1533.     }

  1534. 

  1535.     return plugin;

  1536. #else

  1537.     init.engine->setLastError("LADSPA support not available");

  1538.     return nullptr;

  1539. #endif

  1540. }

  1541. 

  1542. CARLA_BACKEND_END_NAMESPACE