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Carla/source/backend/plugin/DssiPlugin.cpp

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  1. /*

  2.  * Carla DSSI 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. #include "CarlaEngine.hpp"

  20. 

  21. #ifdef WANT_DSSI

  22. 

  23. #include "CarlaDssiUtils.hpp"

  24. #include "CarlaMathUtils.hpp"

  25. 

  26. // TODO - put this in a cpp file

  27. 

  28. #include <QtCore/QDir>

  29. #include <QtCore/QFileInfo>

  30. #include <QtCore/QStringList>

  31. 

  32. const char* find_dssi_ui(const char* const filename, const char* const label)

  33. {

  34.     CARLA_SAFE_ASSERT_RETURN(filename != nullptr && filename[0] != '\0', nullptr);

  35.     CARLA_SAFE_ASSERT_RETURN(label    != nullptr && label[0]    != '\0', nullptr);

  36.     carla_debug("find_dssi_ui(\"%s\", \"%s\")", filename, label);

  37. 

  38.     QString guiFilename;

  39.     QString pluginDir(filename);

  40.     pluginDir.resize(pluginDir.lastIndexOf("."));

  41. 

  42.     QString checkLabel(label);

  43.     QString checkSName(QFileInfo(pluginDir).baseName());

  44. 

  45.     if (! checkLabel.endsWith("_")) checkLabel += "_";

  46.     if (! checkSName.endsWith("_")) checkSName += "_";

  47. 

  48.     QStringList guiFiles(QDir(pluginDir).entryList());

  49. 

  50.     foreach (const QString& gui, guiFiles)

  51.     {

  52.         if (gui.startsWith(checkLabel) || gui.startsWith(checkSName))

  53.         {

  54.             QFileInfo finalname(pluginDir + QDir::separator() + gui);

  55.             guiFilename = finalname.absoluteFilePath();

  56.             break;

  57.         }

  58.     }

  59. 

  60.     if (guiFilename.isEmpty())

  61.         return nullptr;

  62. 

  63.     return carla_strdup(guiFilename.toUtf8().constData());

  64. }

  65. 

  66. CARLA_BACKEND_START_NAMESPACE

  67. 

  68. #if 0

  69. }

  70. #endif

  71. 

  72. class DssiPlugin : public CarlaPlugin

  73. {

  74. public:

  75.     DssiPlugin(CarlaEngine* const engine, const unsigned int id)

  76.         : CarlaPlugin(engine, id),

  77.           fHandle(nullptr),

  78.           fHandle2(nullptr),

  79.           fDescriptor(nullptr),

  80.           fDssiDescriptor(nullptr),

  81.           fUsesCustomData(false),

  82.           fGuiFilename(nullptr),

  83.           fAudioInBuffers(nullptr),

  84.           fAudioOutBuffers(nullptr),

  85.           fParamBuffers(nullptr)

  86.     {

  87.         carla_debug("DssiPlugin::DssiPlugin(%p, %i)", engine, id);

  88. 

  89.         pData->osc.thread.setMode(CarlaPluginThread::PLUGIN_THREAD_DSSI_GUI);

  90.     }

  91. 

  92.     ~DssiPlugin() override

  93.     {

  94.         carla_debug("DssiPlugin::~DssiPlugin()");

  95. 

  96.         // close UI

  97.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  98.         {

  99.             showCustomUI(false);

  100. 

  101.             pData->osc.thread.stop(static_cast<int>(pData->engine->getOptions().uiBridgesTimeout * 2));

  102.         }

  103. 

  104.         pData->singleMutex.lock();

  105.         pData->masterMutex.lock();

  106. 

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

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

  109. 

  110.         if (pData->active)

  111.         {

  112.             deactivate();

  113.             pData->active = false;

  114.         }

  115. 

  116.         if (fDescriptor != nullptr)

  117.         {

  118.             if (pData->name != nullptr && fDssiDescriptor != nullptr && fDssiDescriptor->run_synth == nullptr && fDssiDescriptor->run_multiple_synths != nullptr)

  119.                 removeUniqueMultiSynth(fDescriptor->Label);

  120. 

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

  122.             {

  123.                 if (fHandle != nullptr)

  124.                     fDescriptor->cleanup(fHandle);

  125.                 if (fHandle2 != nullptr)

  126.                     fDescriptor->cleanup(fHandle2);

  127.             }

  128. 

  129.             fHandle  = nullptr;

  130.             fHandle2 = nullptr;

  131.             fDescriptor = nullptr;

  132.             fDssiDescriptor = nullptr;

  133.         }

  134. 

  135.         if (fGuiFilename != nullptr)

  136.         {

  137.             delete[] fGuiFilename;

  138.             fGuiFilename = nullptr;

  139.         }

  140. 

  141.         clearBuffers();

  142.     }

  143. 

  144.     // -------------------------------------------------------------------

  145.     // Information (base)

  146. 

  147.     PluginType getType() const noexcept override

  148.     {

  149.         return PLUGIN_DSSI;

  150.     }

  151. 

  152.     PluginCategory getCategory() const noexcept override

  153.     {

  154.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr, PLUGIN_CATEGORY_NONE);

  155. 

  156.         if (pData->audioIn.count == 0 && pData->audioOut.count > 0 && (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr))

  157.             return PLUGIN_CATEGORY_SYNTH;

  158. 

  159.         return CarlaPlugin::getCategory();

  160.     }

  161. 

  162.     long getUniqueId() const noexcept override

  163.     {

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

  165. 

  166.         return static_cast<long>(fDescriptor->UniqueID);

  167.     }

  168. 

  169.     // -------------------------------------------------------------------

  170.     // Information (count)

  171. 

  172.     // nothing

  173. 

  174.     // -------------------------------------------------------------------

  175.     // Information (current data)

  176. 

  177.     int32_t getChunkData(void** const dataPtr) const noexcept override

  178.     {

  179.         CARLA_SAFE_ASSERT_RETURN(fUsesCustomData, 0);

  180.         CARLA_SAFE_ASSERT_RETURN(pData->options & PLUGIN_OPTION_USE_CHUNKS, 0);

  181.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr, 0);

  182.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor->get_custom_data != nullptr, 0);

  183.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr, 0);

  184.         CARLA_SAFE_ASSERT_RETURN(fHandle2 == nullptr, 0);

  185.         CARLA_SAFE_ASSERT_RETURN(dataPtr != nullptr, 0);

  186. 

  187.         int ret = 0;

  188.         unsigned long dataSize = 0;

  189. 

  190.         try {

  191.             ret = fDssiDescriptor->get_custom_data(fHandle, dataPtr, &dataSize);

  192.         } catch(...) {}

  193. 

  194.         return (ret != 0) ? static_cast<int32_t>(dataSize) : 0;

  195.     }

  196. 

  197.     // -------------------------------------------------------------------

  198.     // Information (per-plugin data)

  199. 

  200.     unsigned int getOptionsAvailable() const noexcept override

  201.     {

  202. #ifdef __USE_GNU

  203.         const bool isAmSynth(strcasestr(pData->filename, "amsynth"));

  204.         const bool isDssiVst(strcasestr(pData->filename, "dssi-vst"));

  205. #else

  206.         const bool isAmSynth(std::strstr(pData->filename, "amsynth"));

  207.         const bool isDssiVst(std::strstr(pData->filename, "dssi-vst"));

  208. #endif

  209. 

  210.         unsigned int options = 0x0;

  211. 

  212.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  213. 

  214.         if (! (isAmSynth || isDssiVst))

  215.         {

  216.             options |= PLUGIN_OPTION_FIXED_BUFFERS;

  217. 

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

  219.             {

  220.                 if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  221.                     options |= PLUGIN_OPTION_FORCE_STEREO;

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

  223.                     options |= PLUGIN_OPTION_FORCE_STEREO;

  224.             }

  225.         }

  226. 

  227.         if (fUsesCustomData)

  228.             options |= PLUGIN_OPTION_USE_CHUNKS;

  229. 

  230.         if (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr)

  231.         {

  232.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  233.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  234.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  235.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

  236.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  237.         }

  238. 

  239.         return options;

  240.     }

  241. 

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

  243.     {

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

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

  246. 

  247.         return fParamBuffers[parameterId];

  248.     }

  249. 

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

  251.     {

  252.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  253. 

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

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

  256.         else

  257.             CarlaPlugin::getLabel(strBuf);

  258.     }

  259. 

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

  261.     {

  262.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  263. 

  264.         if (fDescriptor->Maker != nullptr)

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

  266.         else

  267.             CarlaPlugin::getMaker(strBuf);

  268.     }

  269. 

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

  271.     {

  272.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  273. 

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

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

  276.         else

  277.             CarlaPlugin::getCopyright(strBuf);

  278.     }

  279. 

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

  281.     {

  282.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  283. 

  284.         if (fDescriptor->Name != nullptr)

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

  286.         else

  287.             CarlaPlugin::getRealName(strBuf);

  288.     }

  289. 

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

  291.     {

  292.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  294. 

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

  296. 

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

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

  299.         else

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

  301.     }

  302. 

  303.     // -------------------------------------------------------------------

  304.     // Set data (state)

  305. 

  306.     // nothing

  307. 

  308.     // -------------------------------------------------------------------

  309.     // Set data (internal stuff)

  310. 

  311.     // nothing

  312. 

  313.     // -------------------------------------------------------------------

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

  315. 

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

  317.     {

  318.         CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr,);

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

  320. 

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

  322.         fParamBuffers[parameterId] = fixedValue;

  323. 

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

  325.     }

  326. 

  327.     void setCustomData(const char* const type, const char* const key, const char* const value, const bool sendGui) override

  328.     {

  329.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  330.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  331.         CARLA_SAFE_ASSERT_RETURN(type != nullptr && type[0] != '\0',);

  332.         CARLA_SAFE_ASSERT_RETURN(key != nullptr && key[0] != '\0',);

  333.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

  334.         carla_debug("DssiPlugin::setCustomData(%s, %s, %s, %s)", type, key, value, bool2str(sendGui));

  335. 

  336.         if (std::strcmp(type, CUSTOM_DATA_TYPE_STRING) != 0)

  337.             return carla_stderr2("DssiPlugin::setCustomData(\"%s\", \"%s\", \"%s\", %s) - type is not string", type, key, value, bool2str(sendGui));

  338. 

  339.         if (fDssiDescriptor->configure != nullptr)

  340.         {

  341.             fDssiDescriptor->configure(fHandle, key, value);

  342. 

  343.             if (fHandle2 != nullptr)

  344.                 fDssiDescriptor->configure(fHandle2, key, value);

  345.         }

  346. 

  347.         if (sendGui && pData->osc.data.target != nullptr)

  348.             osc_send_configure(pData->osc.data, key, value);

  349. 

  350.         if (std::strcmp(key, "reloadprograms") == 0 || std::strcmp(key, "load") == 0 || std::strncmp(key, "patches", 7) == 0)

  351.         {

  352.             const ScopedSingleProcessLocker spl(this, true);

  353.             reloadPrograms(false);

  354.         }

  355. 

  356.         CarlaPlugin::setCustomData(type, key, value, sendGui);

  357.     }

  358. 

  359.     void setChunkData(const char* const stringData) override

  360.     {

  361.         CARLA_SAFE_ASSERT_RETURN(fUsesCustomData,);

  362.         CARLA_SAFE_ASSERT_RETURN(pData->options & PLUGIN_OPTION_USE_CHUNKS,);

  363.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  364.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor->set_custom_data != nullptr,);

  365.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  366.         CARLA_SAFE_ASSERT_RETURN(fHandle2 == nullptr,);

  367.         CARLA_SAFE_ASSERT_RETURN(stringData != nullptr,);

  368. 

  369.         QByteArray chunk(QByteArray::fromBase64(stringData));

  370. 

  371.         CARLA_SAFE_ASSERT_RETURN(chunk.size() > 0,);

  372. 

  373.         const ScopedSingleProcessLocker spl(this, true);

  374.         fDssiDescriptor->set_custom_data(fHandle, chunk.data(), static_cast<ulong>(chunk.size()));

  375.     }

  376. 

  377.     void setMidiProgram(const int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  378.     {

  379.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  380.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor->select_program != nullptr,);

  381.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  382.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->midiprog.count),);

  383. 

  384.         if (index >= 0)

  385.         {

  386.             const uint32_t bank    = pData->midiprog.data[index].bank;

  387.             const uint32_t program = pData->midiprog.data[index].program;

  388. 

  389.             const ScopedSingleProcessLocker spl(this, (sendGui || sendOsc || sendCallback));

  390. 

  391.             try {

  392.                 fDssiDescriptor->select_program(fHandle, bank, program);

  393.             } catch(...) {}

  394. 

  395.             if (fHandle2 != nullptr)

  396.             {

  397.                 try {

  398.                     fDssiDescriptor->select_program(fHandle2, bank, program);

  399.                 } catch(...) {}

  400.             }

  401.         }

  402. 

  403.         CarlaPlugin::setMidiProgram(index, sendGui, sendOsc, sendCallback);

  404.     }

  405. 

  406.     // -------------------------------------------------------------------

  407.     // Set ui stuff

  408. 

  409.     void showCustomUI(const bool yesNo) override

  410.     {

  411.         if (yesNo)

  412.         {

  413.             pData->osc.thread.start();

  414.         }

  415.         else

  416.         {

  417.             if (pData->osc.data.target != nullptr)

  418.             {

  419.                 osc_send_hide(pData->osc.data);

  420.                 osc_send_quit(pData->osc.data);

  421.                 pData->osc.data.free();

  422.             }

  423. 

  424.             pData->osc.thread.stop(static_cast<int>(pData->engine->getOptions().uiBridgesTimeout * 2));

  425.         }

  426.     }

  427. 

  428.     // -------------------------------------------------------------------

  429.     // Plugin state

  430. 

  431.     void reload() override

  432.     {

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

  434.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  435.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  436.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  437.         carla_debug("DssiPlugin::reload() - start");

  438. 

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

  440. 

  441.         // Safely disable plugin for reload

  442.         const ScopedDisabler sd(this);

  443. 

  444.         if (pData->active)

  445.             deactivate();

  446. 

  447.         clearBuffers();

  448. 

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

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

  451. 

  452.         uint32_t aIns, aOuts, mIns, params;

  453.         aIns = aOuts = mIns = params = 0;

  454. 

  455.         bool forcedStereoIn, forcedStereoOut;

  456.         forcedStereoIn = forcedStereoOut = false;

  457. 

  458.         bool needsCtrlIn, needsCtrlOut;

  459.         needsCtrlIn = needsCtrlOut = false;

  460. 

  461.         if (portCount > 0)

  462.         {

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

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

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

  466. 

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

  468.             {

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

  470. 

  471.                 if (LADSPA_IS_PORT_AUDIO(portType))

  472.                 {

  473.                     if (LADSPA_IS_PORT_INPUT(portType))

  474.                         aIns += 1;

  475.                     else if (LADSPA_IS_PORT_OUTPUT(portType))

  476.                         aOuts += 1;

  477.                 }

  478.                 else if (LADSPA_IS_PORT_CONTROL(portType))

  479.                     params += 1;

  480.             }

  481.         }

  482. 

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

  484.         {

  485.             if (fHandle2 == nullptr)

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

  487. 

  488.             if (fHandle2 != nullptr)

  489.             {

  490.                 if (aIns == 1)

  491.                 {

  492.                     aIns = 2;

  493.                     forcedStereoIn = true;

  494.                 }

  495. 

  496.                 if (aOuts == 1)

  497.                 {

  498.                     aOuts = 2;

  499.                     forcedStereoOut = true;

  500.                 }

  501.             }

  502.         }

  503. 

  504.         if (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr)

  505.         {

  506.             mIns = 1;

  507.             needsCtrlIn = true;

  508.         }

  509. 

  510.         if (aIns > 0)

  511.         {

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

  513.             fAudioInBuffers = new float*[aIns];

  514. 

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

  516.                 fAudioInBuffers[i] = nullptr;

  517.         }

  518. 

  519.         if (aOuts > 0)

  520.         {

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

  522.             fAudioOutBuffers = new float*[aOuts];

  523.             needsCtrlIn = true;

  524. 

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

  526.                 fAudioOutBuffers[i] = nullptr;

  527.         }

  528. 

  529.         if (params > 0)

  530.         {

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

  532. 

  533.             fParamBuffers = new float[params];

  534.             FLOAT_CLEAR(fParamBuffers, params);

  535.         }

  536. 

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

  538.         CarlaString portName;

  539. 

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

  541.         {

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

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

  544. 

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

  546. 

  547.             if (LADSPA_IS_PORT_AUDIO(portType))

  548.             {

  549.                 portName.clear();

  550. 

  551.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  552.                 {

  553.                     portName  = pData->name;

  554.                     portName += ":";

  555.                 }

  556. 

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

  558.                 portName.truncate(portNameSize);

  559. 

  560.                 if (LADSPA_IS_PORT_INPUT(portType))

  561.                 {

  562.                     uint32_t j = iAudioIn++;

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

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

  565. 

  566.                     if (forcedStereoIn)

  567.                     {

  568.                         portName += "_2";

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

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

  571.                     }

  572.                 }

  573.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  574.                 {

  575.                     uint32_t j = iAudioOut++;

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

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

  578. 

  579.                     if (forcedStereoOut)

  580.                     {

  581.                         portName += "_2";

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

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

  584.                     }

  585.                 }

  586.                 else

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

  588.             }

  589.             else if (LADSPA_IS_PORT_CONTROL(portType))

  590.             {

  591.                 uint32_t j = iCtrl++;

  592.                 pData->param.data[j].type   = PARAMETER_UNKNOWN;

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

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

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

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

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

  598. 

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

  600. 

  601.                 // min value

  602.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  603.                     min = portRangeHints.LowerBound;

  604.                 else

  605.                     min = 0.0f;

  606. 

  607.                 // max value

  608.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  609.                     max = portRangeHints.UpperBound;

  610.                 else

  611.                     max = 1.0f;

  612. 

  613.                 if (min > max)

  614.                     max = min;

  615.                 else if (max < min)

  616.                     min = max;

  617. 

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

  619.                 {

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

  621.                     max = min + 0.1f;

  622.                 }

  623. 

  624.                 // default value

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

  626. 

  627.                 if (def < min)

  628.                     def = min;

  629.                 else if (def > max)

  630.                     def = max;

  631. 

  632.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  633.                 {

  634.                     min *= sampleRate;

  635.                     max *= sampleRate;

  636.                     def *= sampleRate;

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

  638.                 }

  639. 

  640.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  641.                 {

  642.                     step = max - min;

  643.                     stepSmall = step;

  644.                     stepLarge = step;

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

  646.                 }

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

  648.                 {

  649.                     step = 1.0f;

  650.                     stepSmall = 1.0f;

  651.                     stepLarge = 10.0f;

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

  653.                 }

  654.                 else

  655.                 {

  656.                     float range = max - min;

  657.                     step = range/100.0f;

  658.                     stepSmall = range/1000.0f;

  659.                     stepLarge = range/10.0f;

  660.                 }

  661. 

  662.                 if (LADSPA_IS_PORT_INPUT(portType))

  663.                 {

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

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

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

  667.                     needsCtrlIn = true;

  668. 

  669.                     // MIDI CC value

  670.                     if (fDssiDescriptor->get_midi_controller_for_port != nullptr)

  671.                     {

  672.                         int controller = fDssiDescriptor->get_midi_controller_for_port(fHandle, i);

  673.                         if (DSSI_CONTROLLER_IS_SET(controller) && DSSI_IS_CC(controller))

  674.                         {

  675.                             int16_t cc = DSSI_CC_NUMBER(controller);

  676.                             if (! MIDI_IS_CONTROL_BANK_SELECT(cc))

  677.                                 pData->param.data[j].midiCC = cc;

  678.                         }

  679.                     }

  680.                 }

  681.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  682.                 {

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

  684.                     {

  685.                         min = 0.0f;

  686.                         max = sampleRate;

  687.                         def = 0.0f;

  688.                         step = 1.0f;

  689.                         stepSmall = 1.0f;

  690.                         stepLarge = 1.0f;

  691. 

  692.                         pData->param.data[j].type  = PARAMETER_SPECIAL;

  693.                         pData->param.data[j].hints = 0; // TODO PARAMETER_LATENCY

  694.                     }

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

  696.                     {

  697.                         def = sampleRate;

  698.                         step = 1.0f;

  699.                         stepSmall = 1.0f;

  700.                         stepLarge = 1.0f;

  701. 

  702.                         pData->param.data[j].type  = PARAMETER_SPECIAL;

  703.                         pData->param.data[j].hints = 0; // TODO PARAMETER_SAMPLE_RATE

  704.                     }

  705.                     else

  706.                     {

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

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

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

  710.                         needsCtrlOut = true;

  711.                     }

  712.                 }

  713.                 else

  714.                 {

  715.                     pData->param.data[j].type = PARAMETER_UNKNOWN;

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

  717.                 }

  718. 

  719.                 // extra parameter hints

  720.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

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

  722. 

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

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

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

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

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

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

  729. 

  730.                 // Start parameters in their default values

  731.                 fParamBuffers[j] = def;

  732. 

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

  734. 

  735.                 if (fHandle2 != nullptr)

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

  737.             }

  738.             else

  739.             {

  740.                 // Not Audio or Control

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

  742. 

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

  744. 

  745.                 if (fHandle2 != nullptr)

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

  747.             }

  748.         }

  749. 

  750.         if (needsCtrlIn)

  751.         {

  752.             portName.clear();

  753. 

  754.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  755.             {

  756.                 portName  = pData->name;

  757.                 portName += ":";

  758.             }

  759. 

  760.             portName += "events-in";

  761.             portName.truncate(portNameSize);

  762. 

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

  764.         }

  765. 

  766.         if (needsCtrlOut)

  767.         {

  768.             portName.clear();

  769. 

  770.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  771.             {

  772.                 portName  = pData->name;

  773.                 portName += ":";

  774.             }

  775. 

  776.             portName += "events-out";

  777.             portName.truncate(portNameSize);

  778. 

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

  780.         }

  781. 

  782.         if (forcedStereoIn || forcedStereoOut)

  783.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  784.         else

  785.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  786. 

  787.         // plugin hints

  788.         pData->hints = 0x0;

  789. 

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

  791.             pData->hints |= PLUGIN_IS_RTSAFE;

  792. 

  793.         if (fGuiFilename != nullptr)

  794.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  795. 

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

  797.             pData->hints |= PLUGIN_CAN_DRYWET;

  798. 

  799.         if (aOuts > 0)

  800.             pData->hints |= PLUGIN_CAN_VOLUME;

  801. 

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

  803.             pData->hints |= PLUGIN_CAN_BALANCE;

  804. 

  805.         // extra plugin hints

  806.         pData->extraHints = 0x0;

  807. 

  808.         if (mIns > 0)

  809.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  810. 

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

  812.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  813. 

  814.         // check latency

  815.         if (pData->hints & PLUGIN_CAN_DRYWET)

  816.         {

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

  818.             {

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

  820.                 //    continue;

  821. 

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

  823. 

  824.                 float tmpIn[aIns][2];

  825.                 float tmpOut[aOuts][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.                     fDescriptor->connect_port(fHandle, pData->audioIn.ports[j].rindex, tmpIn[j]);

  833.                 }

  834. 

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

  836.                 {

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

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

  839. 

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

  841.                 }

  842. 

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

  844.                     fDescriptor->activate(fHandle);

  845. 

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

  847. 

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

  849.                     fDescriptor->deactivate(fHandle);

  850. 

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

  852. 

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

  854.                 {

  855.                     pData->latency = latency;

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

  857.                     pData->recreateLatencyBuffers();

  858.                 }

  859. 

  860.                 break;

  861.             }

  862.         }

  863. 

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

  865.         reloadPrograms(true);

  866. 

  867.         if (pData->active)

  868.             activate();

  869. 

  870.         carla_debug("DssiPlugin::reload() - end");

  871.     }

  872. 

  873.     void reloadPrograms(const bool doInit) override

  874.     {

  875.         carla_debug("DssiPlugin::reloadPrograms(%s)", bool2str(doInit));

  876.         const uint32_t oldCount = pData->midiprog.count;

  877.         const int32_t  current  = pData->midiprog.current;

  878. 

  879.         // Delete old programs

  880.         pData->midiprog.clear();

  881. 

  882.         // Query new programs

  883.         uint32_t newCount = 0;

  884.         if (fDssiDescriptor->get_program != nullptr && fDssiDescriptor->select_program != nullptr)

  885.         {

  886.             while (fDssiDescriptor->get_program(fHandle, newCount))

  887.                 newCount++;

  888.         }

  889. 

  890.         if (newCount > 0)

  891.         {

  892.             pData->midiprog.createNew(newCount);

  893. 

  894.             // Update data

  895.             for (uint32_t i=0; i < newCount; ++i)

  896.             {

  897.                 const DSSI_Program_Descriptor* const pdesc(fDssiDescriptor->get_program(fHandle, i));

  898.                 CARLA_ASSERT(pdesc != nullptr);

  899.                 CARLA_ASSERT(pdesc->Name != nullptr);

  900. 

  901.                 pData->midiprog.data[i].bank    = static_cast<uint32_t>(pdesc->Bank);

  902.                 pData->midiprog.data[i].program = static_cast<uint32_t>(pdesc->Program);

  903.                 pData->midiprog.data[i].name    = carla_strdup(pdesc->Name);

  904.             }

  905.         }

  906. 

  907. #ifndef BUILD_BRIDGE

  908.         // Update OSC Names

  909.         if (pData->engine->isOscControlRegistered())

  910.         {

  911.             pData->engine->oscSend_control_set_midi_program_count(pData->id, newCount);

  912. 

  913.             for (uint32_t i=0; i < newCount; ++i)

  914.                 pData->engine->oscSend_control_set_midi_program_data(pData->id, i, pData->midiprog.data[i].bank, pData->midiprog.data[i].program, pData->midiprog.data[i].name);

  915.         }

  916. #endif

  917. 

  918.         if (doInit)

  919.         {

  920.             if (newCount > 0)

  921.                 setMidiProgram(0, false, false, false);

  922.         }

  923.         else

  924.         {

  925.             // Check if current program is invalid

  926.             bool programChanged = false;

  927. 

  928.             if (newCount == oldCount+1)

  929.             {

  930.                 // one midi program added, probably created by user

  931.                 pData->midiprog.current = static_cast<int32_t>(oldCount);

  932.                 programChanged = true;

  933.             }

  934.             else if (current < 0 && newCount > 0)

  935.             {

  936.                 // programs exist now, but not before

  937.                 pData->midiprog.current = 0;

  938.                 programChanged = true;

  939.             }

  940.             else if (current >= 0 && newCount == 0)

  941.             {

  942.                 // programs existed before, but not anymore

  943.                 pData->midiprog.current = -1;

  944.                 programChanged = true;

  945.             }

  946.             else if (current >= static_cast<int32_t>(newCount))

  947.             {

  948.                 // current midi program > count

  949.                 pData->midiprog.current = 0;

  950.                 programChanged = true;

  951.             }

  952.             else

  953.             {

  954.                 // no change

  955.                 pData->midiprog.current = current;

  956.             }

  957. 

  958.             if (programChanged)

  959.                 setMidiProgram(pData->midiprog.current, true, true, true);

  960. 

  961.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  962.         }

  963.     }

  964. 

  965.     // -------------------------------------------------------------------

  966.     // Plugin processing

  967. 

  968.     void activate() noexcept override

  969.     {

  970.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  971.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  972. 

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

  974.         {

  975.             try {

  976.                 fDescriptor->activate(fHandle);

  977.             } catch(...) {}

  978. 

  979.             if (fHandle2 != nullptr)

  980.             {

  981.                 try {

  982.                     fDescriptor->activate(fHandle2);

  983.                 } catch(...) {}

  984.             }

  985.         }

  986.     }

  987. 

  988.     void deactivate() noexcept override

  989.     {

  990.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  991.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  992. 

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

  994.         {

  995.             try {

  996.                 fDescriptor->deactivate(fHandle);

  997.             } catch(...) {}

  998. 

  999.             if (fHandle2 != nullptr)

  1000.             {

  1001.                 try {

  1002.                     fDescriptor->deactivate(fHandle2);

  1003.                 } catch(...) {}

  1004.             }

  1005.         }

  1006.     }

  1007. 

  1008.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames) override

  1009.     {

  1010.         // --------------------------------------------------------------------------------------------------------

  1011.         // Check if active

  1012. 

  1013.         if (! pData->active)

  1014.         {

  1015.             // disable any output sound

  1016.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1017.                 FLOAT_CLEAR(outBuffer[i], frames);

  1018.             return;

  1019.         }

  1020. 

  1021.         unsigned long midiEventCount = 0;

  1022. 

  1023.         // --------------------------------------------------------------------------------------------------------

  1024.         // Check if needs reset

  1025. 

  1026.         if (pData->needsReset)

  1027.         {

  1028.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1029.             {

  1030.                 midiEventCount = MAX_MIDI_CHANNELS*2;

  1031.                 carla_zeroStruct<snd_seq_event_t>(fMidiEvents, midiEventCount);

  1032. 

  1033.                 for (unsigned char i=0, k=MAX_MIDI_CHANNELS; i < MAX_MIDI_CHANNELS; ++i)

  1034.                 {

  1035.                     fMidiEvents[i].type = SND_SEQ_EVENT_CONTROLLER;

  1036.                     fMidiEvents[i].data.control.channel = i;

  1037.                     fMidiEvents[i].data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1038. 

  1039.                     fMidiEvents[k+i].type = SND_SEQ_EVENT_CONTROLLER;

  1040.                     fMidiEvents[k+i].data.control.channel = i;

  1041.                     fMidiEvents[k+i].data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1042.                 }

  1043.             }

  1044.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1045.             {

  1046.                 midiEventCount = MAX_MIDI_NOTE;

  1047.                 carla_zeroStruct<snd_seq_event_t>(fMidiEvents, midiEventCount);

  1048. 

  1049.                 for (unsigned char i=0; i < MAX_MIDI_NOTE; ++i)

  1050.                 {

  1051.                     fMidiEvents[i].type = SND_SEQ_EVENT_NOTEOFF;

  1052.                     fMidiEvents[i].data.note.channel = static_cast<uchar>(pData->ctrlChannel);

  1053.                     fMidiEvents[i].data.note.note    = i;

  1054.                 }

  1055.             }

  1056. 

  1057.             if (pData->latency > 0)

  1058.             {

  1059.                 for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1060.                     FLOAT_CLEAR(pData->latencyBuffers[i], pData->latency);

  1061.             }

  1062. 

  1063.             pData->needsReset = false;

  1064. 

  1065.             CARLA_PROCESS_CONTINUE_CHECK;

  1066.         }

  1067. 

  1068.         // --------------------------------------------------------------------------------------------------------

  1069.         // Event Input and Processing

  1070. 

  1071.         if (pData->event.portIn != nullptr)

  1072.         {

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

  1074.             // MIDI Input (External)

  1075. 

  1076.             if (pData->extNotes.mutex.tryLock())

  1077.             {

  1078.                 while (midiEventCount < kPluginMaxMidiEvents && ! pData->extNotes.data.isEmpty())

  1079.                 {

  1080.                     const ExternalMidiNote& note(pData->extNotes.data.getFirst(true));

  1081. 

  1082.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1083. 

  1084.                     snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1085.                     carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1086. 

  1087.                     midiEvent.type               = (note.velo > 0) ? SND_SEQ_EVENT_NOTEON : SND_SEQ_EVENT_NOTEOFF;

  1088.                     midiEvent.data.note.channel  = static_cast<uchar>(note.channel);

  1089.                     midiEvent.data.note.note     = note.note;

  1090.                     midiEvent.data.note.velocity = note.velo;

  1091.                 }

  1092. 

  1093.                 pData->extNotes.mutex.unlock();

  1094. 

  1095.             } // End of MIDI Input (External)

  1096. 

  1097.             // ----------------------------------------------------------------------------------------------------

  1098.             // Event Input (System)

  1099. 

  1100.             bool allNotesOffSent  = false;

  1101.             bool isSampleAccurate = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1102. 

  1103.             uint32_t time, numEvents = pData->event.portIn->getEventCount();

  1104.             uint32_t startTime  = 0;

  1105.             uint32_t timeOffset = 0;

  1106.             uint32_t nextBankId = 0;

  1107. 

  1108.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1109.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1110. 

  1111.             for (uint32_t i=0; i < numEvents; ++i)

  1112.             {

  1113.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1114. 

  1115.                 time = event.time;

  1116. 

  1117.                 CARLA_ASSERT_INT2(time < frames, time, frames);

  1118. 

  1119.                 if (time >= frames)

  1120.                     continue;

  1121. 

  1122.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  1123. 

  1124.                 if (time > timeOffset && isSampleAccurate)

  1125.                 {

  1126.                     if (processSingle(inBuffer, outBuffer, time - timeOffset, timeOffset, midiEventCount))

  1127.                     {

  1128.                         startTime  = 0;

  1129.                         timeOffset = time;

  1130.                         midiEventCount = 0;

  1131. 

  1132.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1133.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1134.                         else

  1135.                             nextBankId = 0;

  1136.                     }

  1137.                     else

  1138.                         startTime += timeOffset;

  1139.                 }

  1140. 

  1141.                 switch (event.type)

  1142.                 {

  1143.                 case kEngineEventTypeNull:

  1144.                     break;

  1145. 

  1146.                 case kEngineEventTypeControl:

  1147.                 {

  1148.                     const EngineControlEvent& ctrlEvent(event.ctrl);

  1149. 

  1150.                     switch (ctrlEvent.type)

  1151.                     {

  1152.                     case kEngineControlEventTypeNull:

  1153.                         break;

  1154. 

  1155.                     case kEngineControlEventTypeParameter:

  1156.                     {

  1157. #ifndef BUILD_BRIDGE

  1158.                         // Control backend stuff

  1159.                         if (event.channel == pData->ctrlChannel)

  1160.                         {

  1161.                             float value;

  1162. 

  1163.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1164.                             {

  1165.                                 value = ctrlEvent.value;

  1166.                                 setDryWet(value, false, false);

  1167.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1168.                             }

  1169. 

  1170.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1171.                             {

  1172.                                 value = ctrlEvent.value*127.0f/100.0f;

  1173.                                 setVolume(value, false, false);

  1174.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1175.                             }

  1176. 

  1177.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1178.                             {

  1179.                                 float left, right;

  1180.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1181. 

  1182.                                 if (value < 0.0f)

  1183.                                 {

  1184.                                     left  = -1.0f;

  1185.                                     right = (value*2.0f)+1.0f;

  1186.                                 }

  1187.                                 else if (value > 0.0f)

  1188.                                 {

  1189.                                     left  = (value*2.0f)-1.0f;

  1190.                                     right = 1.0f;

  1191.                                 }

  1192.                                 else

  1193.                                 {

  1194.                                     left  = -1.0f;

  1195.                                     right = 1.0f;

  1196.                                 }

  1197. 

  1198.                                 setBalanceLeft(left, false, false);

  1199.                                 setBalanceRight(right, false, false);

  1200.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1201.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1202.                             }

  1203.                         }

  1204. #endif

  1205. 

  1206.                         // Control plugin parameters

  1207.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1208.                         {

  1209.                             if (pData->param.data[k].midiChannel != event.channel)

  1210.                                 continue;

  1211.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1212.                                 continue;

  1213.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1214.                                 continue;

  1215.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1216.                                 continue;

  1217. 

  1218.                             float value;

  1219. 

  1220.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1221.                             {

  1222.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1223.                             }

  1224.                             else

  1225.                             {

  1226.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1227. 

  1228.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1229.                                     value = std::rint(value);

  1230.                             }

  1231. 

  1232.                             setParameterValue(k, value, false, false, false);

  1233.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1234.                         }

  1235. 

  1236.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param <= 0x5F)

  1237.                         {

  1238.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1239.                                 continue;

  1240. 

  1241.                             snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1242.                             carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1243. 

  1244.                             midiEvent.time.tick = isSampleAccurate ? startTime : time;

  1245. 

  1246.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1247.                             midiEvent.data.control.channel = event.channel;

  1248.                             midiEvent.data.control.param   = ctrlEvent.param;

  1249.                             midiEvent.data.control.value   = int8_t(ctrlEvent.value*127.0f);

  1250.                         }

  1251. 

  1252.                         break;

  1253.                     }

  1254. 

  1255.                     case kEngineControlEventTypeMidiBank:

  1256.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1257.                             nextBankId = ctrlEvent.param;

  1258.                         break;

  1259. 

  1260.                     case kEngineControlEventTypeMidiProgram:

  1261.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1262.                         {

  1263.                             const uint32_t nextProgramId = ctrlEvent.param;

  1264. 

  1265.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1266.                             {

  1267.                                 if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1268.                                 {

  1269.                                     const int32_t index(static_cast<int32_t>(k));

  1270.                                     setMidiProgram(index, false, false, false);

  1271.                                     pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, index, 0, 0.0f);

  1272.                                     break;

  1273.                                 }

  1274.                             }

  1275.                         }

  1276.                         break;

  1277. 

  1278.                     case kEngineControlEventTypeAllSoundOff:

  1279.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1280.                         {

  1281.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1282.                                 continue;

  1283. 

  1284.                             snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1285.                             carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1286. 

  1287.                             midiEvent.time.tick = isSampleAccurate ? startTime : time;

  1288. 

  1289.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1290.                             midiEvent.data.control.channel = event.channel;

  1291.                             midiEvent.data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1292.                         }

  1293.                         break;

  1294. 

  1295.                     case kEngineControlEventTypeAllNotesOff:

  1296.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1297.                         {

  1298.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1299.                             {

  1300.                                 allNotesOffSent = true;

  1301.                                 sendMidiAllNotesOffToCallback();

  1302.                             }

  1303. 

  1304.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1305.                                 continue;

  1306. 

  1307.                             snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1308.                             carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1309. 

  1310.                             midiEvent.time.tick = isSampleAccurate ? startTime : time;

  1311. 

  1312.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1313.                             midiEvent.data.control.channel = event.channel;

  1314.                             midiEvent.data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1315. 

  1316.                             midiEventCount += 1;

  1317.                         }

  1318.                         break;

  1319.                     }

  1320. 

  1321.                     break;

  1322.                 }

  1323. 

  1324.                 case kEngineEventTypeMidi:

  1325.                 {

  1326.                     if (midiEventCount >= kPluginMaxMidiEvents)

  1327.                         continue;

  1328. 

  1329.                     const EngineMidiEvent& engineEvent(event.midi);

  1330. 

  1331.                     uint8_t status  = uint8_t(MIDI_GET_STATUS_FROM_DATA(engineEvent.data));

  1332.                     uint8_t channel = event.channel;

  1333. 

  1334.                     // Fix bad note-off (per DSSI spec)

  1335.                     if (MIDI_IS_STATUS_NOTE_ON(status) && engineEvent.data[2] == 0)

  1336.                         status = MIDI_STATUS_NOTE_OFF;

  1337. 

  1338.                     snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount]);

  1339.                     carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1340. 

  1341.                     midiEvent.time.tick = isSampleAccurate ? startTime : time;

  1342. 

  1343.                     switch (status)

  1344.                     {

  1345.                     case MIDI_STATUS_NOTE_OFF:

  1346.                     {

  1347.                         const uint8_t note = engineEvent.data[1];

  1348. 

  1349.                         midiEvent.type = SND_SEQ_EVENT_NOTEOFF;

  1350.                         midiEvent.data.note.channel = channel;

  1351.                         midiEvent.data.note.note    = note;

  1352. 

  1353.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0f);

  1354.                         break;

  1355.                     }

  1356.                     case MIDI_STATUS_NOTE_ON:

  1357.                     {

  1358.                         const uint8_t note = engineEvent.data[1];

  1359.                         const uint8_t velo = engineEvent.data[2];

  1360. 

  1361.                         midiEvent.type = SND_SEQ_EVENT_NOTEON;

  1362.                         midiEvent.data.note.channel  = channel;

  1363.                         midiEvent.data.note.note     = note;

  1364.                         midiEvent.data.note.velocity = velo;

  1365. 

  1366.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1367.                         break;

  1368.                     }

  1369.                     case MIDI_STATUS_POLYPHONIC_AFTERTOUCH:

  1370.                     {

  1371.                         if (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH)

  1372.                         {

  1373.                             const uint8_t note     = engineEvent.data[1];

  1374.                             const uint8_t pressure = engineEvent.data[2];

  1375. 

  1376.                             midiEvent.type = SND_SEQ_EVENT_KEYPRESS;

  1377.                             midiEvent.data.note.channel  = channel;

  1378.                             midiEvent.data.note.note     = note;

  1379.                             midiEvent.data.note.velocity = pressure;

  1380.                         }

  1381.                         break;

  1382.                     }

  1383.                     case MIDI_STATUS_CONTROL_CHANGE:

  1384.                     {

  1385.                         if (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1386.                         {

  1387.                             const uint8_t control = engineEvent.data[1];

  1388.                             const uint8_t value   = engineEvent.data[2];

  1389. 

  1390.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1391.                             midiEvent.data.control.channel = channel;

  1392.                             midiEvent.data.control.param   = control;

  1393.                             midiEvent.data.control.value   = value;

  1394.                         }

  1395.                         break;

  1396.                     }

  1397.                     case MIDI_STATUS_CHANNEL_PRESSURE:

  1398.                     {

  1399.                         if (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE)

  1400.                         {

  1401.                             const uint8_t pressure = engineEvent.data[1];

  1402. 

  1403.                             midiEvent.type = SND_SEQ_EVENT_CHANPRESS;

  1404.                             midiEvent.data.control.channel = channel;

  1405.                             midiEvent.data.control.value   = pressure;

  1406.                         }

  1407.                         break;

  1408.                     }

  1409.                     case MIDI_STATUS_PITCH_WHEEL_CONTROL:

  1410.                     {

  1411.                         if (pData->options & PLUGIN_OPTION_SEND_PITCHBEND)

  1412.                         {

  1413.                             const uint8_t lsb = engineEvent.data[1];

  1414.                             const uint8_t msb = engineEvent.data[2];

  1415. 

  1416.                             midiEvent.type = SND_SEQ_EVENT_PITCHBEND;

  1417.                             midiEvent.data.control.channel = channel;

  1418.                             midiEvent.data.control.value   = ((msb << 7) | lsb) - 8192;

  1419.                         }

  1420.                         break;

  1421.                     }

  1422.                     default:

  1423.                         continue;

  1424.                         break;

  1425.                     }

  1426. 

  1427.                     midiEventCount += 1;

  1428.                     break;

  1429.                 }

  1430.                 }

  1431.             }

  1432. 

  1433.             pData->postRtEvents.trySplice();

  1434. 

  1435.             if (frames > timeOffset)

  1436.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset, midiEventCount);

  1437. 

  1438.         } // End of Event Input and Processing

  1439. 

  1440.         // --------------------------------------------------------------------------------------------------------

  1441.         // Plugin processing (no events)

  1442. 

  1443.         else

  1444.         {

  1445.             processSingle(inBuffer, outBuffer, frames, 0, midiEventCount);

  1446. 

  1447.         } // End of Plugin processing (no events)

  1448. 

  1449.         CARLA_PROCESS_CONTINUE_CHECK;

  1450. 

  1451.         // --------------------------------------------------------------------------------------------------------

  1452.         // Control Output

  1453. 

  1454.         if (pData->event.portOut != nullptr)

  1455.         {

  1456.             uint8_t  channel;

  1457.             uint16_t param;

  1458.             float    value;

  1459. 

  1460.             for (uint32_t k=0; k < pData->param.count; ++k)

  1461.             {

  1462.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1463.                     continue;

  1464. 

  1465.                 pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1466. 

  1467.                 if (pData->param.data[k].midiCC > 0)

  1468.                 {

  1469.                     channel = pData->param.data[k].midiChannel;

  1470.                     param   = static_cast<uint16_t>(pData->param.data[k].midiCC);

  1471.                     value   = pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]);

  1472.                     pData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value);

  1473.                 }

  1474.             }

  1475. 

  1476.         } // End of Control Output

  1477.     }

  1478. 

  1479.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset, const unsigned long midiEventCount)

  1480.     {

  1481.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1482. 

  1483.         if (pData->audioIn.count > 0)

  1484.         {

  1485.             CARLA_SAFE_ASSERT_RETURN(inBuffer != nullptr, false);

  1486.         }

  1487.         if (pData->audioOut.count > 0)

  1488.         {

  1489.             CARLA_SAFE_ASSERT_RETURN(outBuffer != nullptr, false);

  1490.         }

  1491. 

  1492.         // --------------------------------------------------------------------------------------------------------

  1493.         // Try lock, silence otherwise

  1494. 

  1495.         if (pData->engine->isOffline())

  1496.         {

  1497.             pData->singleMutex.lock();

  1498.         }

  1499.         else if (! pData->singleMutex.tryLock())

  1500.         {

  1501.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1502.             {

  1503.                 for (uint32_t k=0; k < frames; ++k)

  1504.                     outBuffer[i][k+timeOffset] = 0.0f;

  1505.             }

  1506. 

  1507.             return false;

  1508.         }

  1509. 

  1510.         // --------------------------------------------------------------------------------------------------------

  1511.         // Reset audio buffers

  1512. 

  1513.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1514.             FLOAT_COPY(fAudioInBuffers[i], inBuffer[i]+timeOffset, frames);

  1515. 

  1516.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1517.             FLOAT_CLEAR(fAudioOutBuffers[i], frames);

  1518. 

  1519.         // --------------------------------------------------------------------------------------------------------

  1520.         // Run plugin

  1521. 

  1522.         if (fDssiDescriptor->run_synth != nullptr)

  1523.         {

  1524.             fDssiDescriptor->run_synth(fHandle, frames, fMidiEvents, midiEventCount);

  1525. 

  1526.             if (fHandle2 != nullptr)

  1527.                 fDssiDescriptor->run_synth(fHandle2, frames, fMidiEvents, midiEventCount);

  1528.         }

  1529.         else if (fDssiDescriptor->run_multiple_synths != nullptr)

  1530.         {

  1531.             unsigned long instances = (fHandle2 != nullptr) ? 2 : 1;

  1532.             LADSPA_Handle handlePtr[2] = { fHandle, fHandle2 };

  1533.             snd_seq_event_t* midiEventsPtr[2] = { fMidiEvents, fMidiEvents };

  1534.             unsigned long midiEventCountPtr[2] = { midiEventCount, midiEventCount };

  1535.             fDssiDescriptor->run_multiple_synths(instances, handlePtr, frames, midiEventsPtr, midiEventCountPtr);

  1536.         }

  1537.         else

  1538.         {

  1539.             fDescriptor->run(fHandle, frames);

  1540. 

  1541.             if (fHandle2 != nullptr)

  1542.                 fDescriptor->run(fHandle2, frames);

  1543.         }

  1544. 

  1545. #ifndef BUILD_BRIDGE

  1546.         // --------------------------------------------------------------------------------------------------------

  1547.         // Post-processing (dry/wet, volume and balance)

  1548. 

  1549.         {

  1550.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && pData->postProc.dryWet != 1.0f;

  1551.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && (pData->postProc.balanceLeft != -1.0f || pData->postProc.balanceRight != 1.0f);

  1552. 

  1553.             bool isPair;

  1554.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1555. 

  1556.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1557.             {

  1558.                 // Dry/Wet

  1559.                 if (doDryWet)

  1560.                 {

  1561.                     for (uint32_t k=0; k < frames; ++k)

  1562.                     {

  1563.                         // TODO

  1564.                         //if (k < pData->latency && pData->latency < frames)

  1565.                         //    bufValue = (pData->audioIn.count == 1) ? pData->latencyBuffers[0][k] : pData->latencyBuffers[i][k];

  1566.                         //else

  1567.                         //    bufValue = (pData->audioIn.count == 1) ? inBuffer[0][k-m_latency] : inBuffer[i][k-m_latency];

  1568. 

  1569.                         bufValue = fAudioInBuffers[(pData->audioIn.count == 1) ? 0 : i][k];

  1570.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1571.                     }

  1572.                 }

  1573. 

  1574.                 // Balance

  1575.                 if (doBalance)

  1576.                 {

  1577.                     isPair = (i % 2 == 0);

  1578. 

  1579.                     if (isPair)

  1580.                     {

  1581.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1582.                         FLOAT_COPY(oldBufLeft, fAudioOutBuffers[i], frames);

  1583.                     }

  1584. 

  1585.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1586.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1587. 

  1588.                     for (uint32_t k=0; k < frames; ++k)

  1589.                     {

  1590.                         if (isPair)

  1591.                         {

  1592.                             // left

  1593.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1594.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1595.                         }

  1596.                         else

  1597.                         {

  1598.                             // right

  1599.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1600.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1601.                         }

  1602.                     }

  1603.                 }

  1604. 

  1605.                 // Volume (and buffer copy)

  1606.                 {

  1607.                     for (uint32_t k=0; k < frames; ++k)

  1608.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1609.                 }

  1610.             }

  1611. 

  1612. #if 0

  1613.             // Latency, save values for next callback, TODO

  1614.             if (pData->latency > 0 && pData->latency < frames)

  1615.             {

  1616.                 for (i=0; i < pData->audioIn.count; ++i)

  1617.                     FLOAT_COPY(pData->latencyBuffers[i], inBuffer[i] + (frames - pData->latency), pData->latency);

  1618.             }

  1619. #endif

  1620.         } // End of Post-processing

  1621. 

  1622. #else // BUILD_BRIDGE

  1623.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1624.         {

  1625.             for (uint32_t k=0; k < frames; ++k)

  1626.                 outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1627.         }

  1628. #endif

  1629. 

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

  1631. 

  1632.         pData->singleMutex.unlock();

  1633.         return true;

  1634.     }

  1635. 

  1636.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1637.     {

  1638.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1639.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1640. 

  1641.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1642.         {

  1643.             if (fAudioInBuffers[i] != nullptr)

  1644.                 delete[] fAudioInBuffers[i];

  1645.             fAudioInBuffers[i] = new float[newBufferSize];

  1646.         }

  1647. 

  1648.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1649.         {

  1650.             if (fAudioOutBuffers[i] != nullptr)

  1651.                 delete[] fAudioOutBuffers[i];

  1652.             fAudioOutBuffers[i] = new float[newBufferSize];

  1653.         }

  1654. 

  1655.         if (fHandle2 == nullptr)

  1656.         {

  1657.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1658.             {

  1659.                 CARLA_ASSERT(fAudioInBuffers[i] != nullptr);

  1660.                 fDescriptor->connect_port(fHandle, pData->audioIn.ports[i].rindex, fAudioInBuffers[i]);

  1661.             }

  1662. 

  1663.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1664.             {

  1665.                 CARLA_ASSERT(fAudioOutBuffers[i] != nullptr);

  1666.                 fDescriptor->connect_port(fHandle, pData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  1667.             }

  1668.         }

  1669.         else

  1670.         {

  1671.             if (pData->audioIn.count > 0)

  1672.             {

  1673.                 CARLA_ASSERT(pData->audioIn.count == 2);

  1674.                 CARLA_ASSERT(fAudioInBuffers[0] != nullptr);

  1675.                 CARLA_ASSERT(fAudioInBuffers[1] != nullptr);

  1676. 

  1677.                 fDescriptor->connect_port(fHandle,  pData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  1678.                 fDescriptor->connect_port(fHandle2, pData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  1679.             }

  1680. 

  1681.             if (pData->audioOut.count > 0)

  1682.             {

  1683.                 CARLA_ASSERT(pData->audioOut.count == 2);

  1684.                 CARLA_ASSERT(fAudioOutBuffers[0] != nullptr);

  1685.                 CARLA_ASSERT(fAudioOutBuffers[1] != nullptr);

  1686. 

  1687.                 fDescriptor->connect_port(fHandle,  pData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  1688.                 fDescriptor->connect_port(fHandle2, pData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  1689.             }

  1690.         }

  1691. 

  1692.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - end", newBufferSize);

  1693.     }

  1694. 

  1695.     void sampleRateChanged(const double newSampleRate) override

  1696.     {

  1697.         CARLA_ASSERT_INT(newSampleRate > 0.0, (int)newSampleRate);

  1698.         carla_debug("DssiPlugin::sampleRateChanged(%g) - start", newSampleRate);

  1699. 

  1700.         // TODO

  1701.         (void)newSampleRate;

  1702. 

  1703.         carla_debug("DssiPlugin::sampleRateChanged(%g) - end", newSampleRate);

  1704.     }

  1705. 

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

  1707.     // Plugin buffers

  1708. 

  1709.     void clearBuffers() override

  1710.     {

  1711.         carla_debug("DssiPlugin::clearBuffers() - start");

  1712. 

  1713.         if (fAudioInBuffers != nullptr)

  1714.         {

  1715.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1716.             {

  1717.                 if (fAudioInBuffers[i] != nullptr)

  1718.                 {

  1719.                     delete[] fAudioInBuffers[i];

  1720.                     fAudioInBuffers[i] = nullptr;

  1721.                 }

  1722.             }

  1723. 

  1724.             delete[] fAudioInBuffers;

  1725.             fAudioInBuffers = nullptr;

  1726.         }

  1727. 

  1728.         if (fAudioOutBuffers != nullptr)

  1729.         {

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

  1731.             {

  1732.                 if (fAudioOutBuffers[i] != nullptr)

  1733.                 {

  1734.                     delete[] fAudioOutBuffers[i];

  1735.                     fAudioOutBuffers[i] = nullptr;

  1736.                 }

  1737.             }

  1738. 

  1739.             delete[] fAudioOutBuffers;

  1740.             fAudioOutBuffers = nullptr;

  1741.         }

  1742. 

  1743.         if (fParamBuffers != nullptr)

  1744.         {

  1745.             delete[] fParamBuffers;

  1746.             fParamBuffers = nullptr;

  1747.         }

  1748. 

  1749.         CarlaPlugin::clearBuffers();

  1750. 

  1751.         carla_debug("DssiPlugin::clearBuffers() - end");

  1752.     }

  1753. 

  1754.     // -------------------------------------------------------------------

  1755.     // Post-poned UI Stuff

  1756. 

  1757.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  1758.     {

  1759.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  1760. 

  1761.         if (pData->osc.data.target == nullptr)

  1762.             return;

  1763. 

  1764.         osc_send_control(pData->osc.data, pData->param.data[index].rindex, value);

  1765.     }

  1766. 

  1767.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1768.     {

  1769.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1770. 

  1771.         if (pData->osc.data.target == nullptr)

  1772.             return;

  1773. 

  1774.         osc_send_program(pData->osc.data, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  1775.     }

  1776. 

  1777.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1778.     {

  1779.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1780.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1781.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  1782. 

  1783.         if (pData->osc.data.target == nullptr)

  1784.             return;

  1785. 

  1786. #if 0

  1787.         uint8_t midiData[4] = { 0 };

  1788.         midiData[1] = MIDI_STATUS_NOTE_ON + channel;

  1789.         midiData[2] = note;

  1790.         midiData[3] = velo;

  1791. 

  1792.         osc_send_midi(pData->osc.data, midiData);

  1793. #endif

  1794.     }

  1795. 

  1796.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  1797.     {

  1798.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1799.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1800. 

  1801.         if (pData->osc.data.target == nullptr)

  1802.             return;

  1803. 

  1804. #if 0

  1805.         uint8_t midiData[4] = { 0 };

  1806.         midiData[1] = MIDI_STATUS_NOTE_OFF + channel;

  1807.         midiData[2] = note;

  1808. 

  1809.         osc_send_midi(pData->osc.data, midiData);

  1810. #endif

  1811.     }

  1812. 

  1813.     // -------------------------------------------------------------------

  1814. 

  1815.     const void* getExtraStuff() const noexcept override

  1816.     {

  1817.         return fGuiFilename;

  1818.     }

  1819. 

  1820.     bool init(const char* const filename, const char* const name, const char* const label)

  1821.     {

  1822.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  1823. 

  1824.         // ---------------------------------------------------------------

  1825.         // first checks

  1826. 

  1827.         if (pData->client != nullptr)

  1828.         {

  1829.             pData->engine->setLastError("Plugin client is already registered");

  1830.             return false;

  1831.         }

  1832. 

  1833.         if (filename == nullptr || filename[0] == '\0')

  1834.         {

  1835.             pData->engine->setLastError("null filename");

  1836.             return false;

  1837.         }

  1838. 

  1839.         if (label == nullptr || label[0] == '\0')

  1840.         {

  1841.             pData->engine->setLastError("null label");

  1842.             return false;

  1843.         }

  1844. 

  1845.         // ---------------------------------------------------------------

  1846.         // open DLL

  1847. 

  1848.         if (! pData->libOpen(filename))

  1849.         {

  1850.             pData->engine->setLastError(pData->libError(filename));

  1851.             return false;

  1852.         }

  1853. 

  1854.         // ---------------------------------------------------------------

  1855.         // get DLL main entry

  1856. 

  1857.         const DSSI_Descriptor_Function descFn = (DSSI_Descriptor_Function)pData->libSymbol("dssi_descriptor");

  1858. 

  1859.         if (descFn == nullptr)

  1860.         {

  1861.             pData->engine->setLastError("Could not find the DSSI Descriptor in the plugin library");

  1862.             return false;

  1863.         }

  1864. 

  1865.         // ---------------------------------------------------------------

  1866.         // get descriptor that matches label

  1867. 

  1868.         unsigned long i = 0;

  1869.         while ((fDssiDescriptor = descFn(i++)) != nullptr)

  1870.         {

  1871.             fDescriptor = fDssiDescriptor->LADSPA_Plugin;

  1872.             if (fDescriptor != nullptr && fDescriptor->Label != nullptr && std::strcmp(fDescriptor->Label, label) == 0)

  1873.                 break;

  1874.         }

  1875. 

  1876.         if (fDescriptor == nullptr || fDssiDescriptor == nullptr)

  1877.         {

  1878.             pData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  1879.             return false;

  1880.         }

  1881. 

  1882.         // ---------------------------------------------------------------

  1883.         // check if uses global instance

  1884. 

  1885.         if (fDssiDescriptor->run_synth == nullptr && fDssiDescriptor->run_multiple_synths != nullptr)

  1886.         {

  1887.             if (! addUniqueMultiSynth(fDescriptor->Label))

  1888.             {

  1889.                 pData->engine->setLastError("This plugin uses a global instance and can't be used more than once safely");

  1890.                 return false;

  1891.             }

  1892.         }

  1893. 

  1894.         // ---------------------------------------------------------------

  1895.         // get info

  1896. 

  1897.         if (name != nullptr && name[0] != '\0')

  1898.             pData->name = pData->engine->getUniquePluginName(name);

  1899.         else if (fDescriptor->Name != nullptr && fDescriptor->Name[0] != '\0')

  1900.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Name);

  1901.         else

  1902.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Label);

  1903. 

  1904.         pData->filename = carla_strdup(filename);

  1905. 

  1906.         // ---------------------------------------------------------------

  1907.         // register client

  1908. 

  1909.         pData->client = pData->engine->addClient(this);

  1910. 

  1911.         if (pData->client == nullptr || ! pData->client->isOk())

  1912.         {

  1913.             pData->engine->setLastError("Failed to register plugin client");

  1914.             return false;

  1915.         }

  1916. 

  1917.         // ---------------------------------------------------------------

  1918.         // initialize plugin

  1919. 

  1920.         fHandle = fDescriptor->instantiate(fDescriptor, (unsigned long)pData->engine->getSampleRate());

  1921. 

  1922.         if (fHandle == nullptr)

  1923.         {

  1924.             pData->engine->setLastError("Plugin failed to initialize");

  1925.             return false;

  1926.         }

  1927. 

  1928.         // ---------------------------------------------------------------

  1929.         // check for custom data extension

  1930. 

  1931.         if (fDssiDescriptor->configure != nullptr)

  1932.         {

  1933.             if (char* const error = fDssiDescriptor->configure(fHandle, DSSI_CUSTOMDATA_EXTENSION_KEY, ""))

  1934.             {

  1935.                 if (std::strcmp(error, "true") == 0 && fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->set_custom_data != nullptr)

  1936.                     fUsesCustomData = true;

  1937. 

  1938.                 std::free(error);

  1939.             }

  1940.         }

  1941. 

  1942.         // ---------------------------------------------------------------

  1943.         // gui stuff

  1944. 

  1945.         if (const char* const guiFilename = find_dssi_ui(filename, fDescriptor->Label))

  1946.         {

  1947.             pData->osc.thread.setOscData(guiFilename, fDescriptor->Label);

  1948.             fGuiFilename = guiFilename;

  1949.         }

  1950. 

  1951.         // ---------------------------------------------------------------

  1952.         // load plugin settings

  1953. 

  1954.         {

  1955. #ifdef __USE_GNU

  1956.             const bool isAmSynth(strcasestr(pData->filename, "amsynth"));

  1957.             const bool isDssiVst(strcasestr(pData->filename, "dssi-vst"));

  1958. #else

  1959.             const bool isAmSynth(std::strstr(pData->filename, "amsynth"));

  1960.             const bool isDssiVst(std::strstr(pData->filename, "dssi-vst"));

  1961. #endif

  1962. 

  1963.             // set default options

  1964.             pData->options = 0x0;

  1965. 

  1966.             pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1967. 

  1968.             if (isAmSynth || isDssiVst)

  1969.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  1970. 

  1971.             if (pData->engine->getOptions().forceStereo)

  1972.                 pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1973. 

  1974.             if (fUsesCustomData)

  1975.                 pData->options |= PLUGIN_OPTION_USE_CHUNKS;

  1976. 

  1977.             if (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr)

  1978.             {

  1979.                 pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1980.                 pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  1981.                 pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  1982.                 pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1983. 

  1984.                 if (fDssiDescriptor->run_synth == nullptr)

  1985.                     carla_stderr2("WARNING: Plugin can ONLY use run_multiple_synths!");

  1986.             }

  1987. 

  1988.             // set identifier string

  1989.             CarlaString identifier("DSSI/");

  1990. 

  1991.             if (const char* const shortname = std::strrchr(filename, OS_SEP))

  1992.             {

  1993.                 identifier += shortname+1;

  1994.                 identifier += ",";

  1995.             }

  1996. 

  1997.             identifier += label;

  1998.             pData->identifier = identifier.dup();

  1999. 

  2000.             // load settings

  2001.             pData->options = pData->loadSettings(pData->options, getOptionsAvailable());

  2002. 

  2003.             // ignore settings, we need this anyway

  2004.             if (isAmSynth || isDssiVst)

  2005.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2006.         }

  2007. 

  2008.         return true;

  2009.     }

  2010. 

  2011. private:

  2012.     LADSPA_Handle fHandle;

  2013.     LADSPA_Handle fHandle2;

  2014.     const LADSPA_Descriptor* fDescriptor;

  2015.     const DSSI_Descriptor*   fDssiDescriptor;

  2016. 

  2017.     bool fUsesCustomData;

  2018.     const char* fGuiFilename;

  2019. 

  2020.     float** fAudioInBuffers;

  2021.     float** fAudioOutBuffers;

  2022.     float*  fParamBuffers;

  2023.     snd_seq_event_t fMidiEvents[kPluginMaxMidiEvents];

  2024. 

  2025.     static LinkedList<const char*> sMultiSynthList;

  2026. 

  2027.     static bool addUniqueMultiSynth(const char* const label)

  2028.     {

  2029.         CARLA_SAFE_ASSERT_RETURN(label != nullptr, true);

  2030. 

  2031.         for (LinkedList<const char*>::Itenerator it = sMultiSynthList.begin(); it.valid(); it.next())

  2032.         {

  2033.             const char*& itLabel(it.getValue());

  2034. 

  2035.             if (std::strcmp(label, itLabel) == 0)

  2036.                 return false;

  2037.         }

  2038. 

  2039.         sMultiSynthList.append(carla_strdup(label));

  2040.         return true;

  2041.     }

  2042. 

  2043.     static void removeUniqueMultiSynth(const char* const label)

  2044.     {

  2045.         CARLA_SAFE_ASSERT_RETURN(label != nullptr,);

  2046. 

  2047.         for (LinkedList<const char*>::Itenerator it = sMultiSynthList.begin(); it.valid(); it.next())

  2048.         {

  2049.             const char*& itLabel(it.getValue());

  2050. 

  2051.             if (std::strcmp(label, itLabel) == 0)

  2052.             {

  2053.                 sMultiSynthList.remove(it);

  2054.                 delete[] itLabel;

  2055.                 return;

  2056.             }

  2057.         }

  2058.     }

  2059. 

  2060.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(DssiPlugin)

  2061. };

  2062. 

  2063. LinkedList<const char*> DssiPlugin::sMultiSynthList;

  2064. 

  2065. CARLA_BACKEND_END_NAMESPACE

  2066. 

  2067. #endif // WANT_DSSI

  2068. 

  2069. CARLA_BACKEND_START_NAMESPACE

  2070. 

  2071. CarlaPlugin* CarlaPlugin::newDSSI(const Initializer& init)

  2072. {

  2073.     carla_debug("CarlaPlugin::newDSSI({%p, \"%s\", \"%s\", \"%s\"})", init.engine, init.filename, init.name, init.label);

  2074. 

  2075. #ifdef WANT_DSSI

  2076.     DssiPlugin* const plugin(new DssiPlugin(init.engine, init.id));

  2077. 

  2078.     if (! plugin->init(init.filename, init.name, init.label))

  2079.     {

  2080.         delete plugin;

  2081.         return nullptr;

  2082.     }

  2083. 

  2084.     plugin->reload();

  2085. 

  2086.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && ! plugin->canRunInRack())

  2087.     {

  2088.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo DSSI plugins, sorry!");

  2089.         delete plugin;

  2090.         return nullptr;

  2091.     }

  2092. 

  2093.     return plugin;

  2094. #else

  2095.     init.engine->setLastError("DSSI support not available");

  2096.     return nullptr;

  2097. #endif

  2098. }

  2099. 

  2100. CARLA_BACKEND_END_NAMESPACE