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Carla/source/backend/plugin/DssiPlugin.cpp

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  1. /*

  2.  * Carla DSSI Plugin

  3.  * Copyright (C) 2011-2014 Filipe Coelho <falktx@falktx.com>

  4.  *

  5.  * This program is free software; you can redistribute it and/or

  6.  * modify it under the terms of the GNU General Public License as

  7.  * published by the Free Software Foundation; either version 2 of

  8.  * the License, or any later version.

  9.  *

  10.  * This program is distributed in the hope that it will be useful,

  11.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  12.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  13.  * GNU General Public License for more details.

  14.  *

  15.  * For a full copy of the GNU General Public License see the doc/GPL.txt file.

  16.  */

  17. 

  18. #include "CarlaPluginInternal.hpp"

  19. #include "CarlaEngine.hpp"

  20. 

  21. #ifdef WANT_DSSI

  22. 

  23. #include "CarlaDssiUtils.hpp"

  24. #include "CarlaMathUtils.hpp"

  25. 

  26. #include <QtCore/QByteArray>

  27. 

  28. CARLA_BACKEND_START_NAMESPACE

  29. 

  30. #if 0

  31. }

  32. #endif

  33. 

  34. class DssiPlugin : public CarlaPlugin

  35. {

  36. public:

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

  38.         : CarlaPlugin(engine, id),

  39.           fHandle(nullptr),

  40.           fHandle2(nullptr),

  41.           fDescriptor(nullptr),

  42.           fDssiDescriptor(nullptr),

  43.           fUsesCustomData(false),

  44.           fUiFilename(nullptr),

  45.           fAudioInBuffers(nullptr),

  46.           fAudioOutBuffers(nullptr),

  47.           fParamBuffers(nullptr)

  48.     {

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

  50. 

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

  52.     }

  53. 

  54.     ~DssiPlugin() override

  55.     {

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

  57. 

  58.         // close UI

  59.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  60.         {

  61.             showCustomUI(false);

  62. 

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

  64.         }

  65. 

  66.         pData->singleMutex.lock();

  67.         pData->masterMutex.lock();

  68. 

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

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

  71. 

  72.         if (pData->active)

  73.         {

  74.             deactivate();

  75.             pData->active = false;

  76.         }

  77. 

  78.         if (fDescriptor != nullptr)

  79.         {

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

  81.                 removeUniqueMultiSynth(fDescriptor->Label);

  82. 

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

  84.             {

  85.                 if (fHandle != nullptr)

  86.                     fDescriptor->cleanup(fHandle);

  87.                 if (fHandle2 != nullptr)

  88.                     fDescriptor->cleanup(fHandle2);

  89.             }

  90. 

  91.             fHandle  = nullptr;

  92.             fHandle2 = nullptr;

  93.             fDescriptor = nullptr;

  94.             fDssiDescriptor = nullptr;

  95.         }

  96. 

  97.         if (fUiFilename != nullptr)

  98.         {

  99.             delete[] fUiFilename;

  100.             fUiFilename = nullptr;

  101.         }

  102. 

  103.         clearBuffers();

  104.     }

  105. 

  106.     // -------------------------------------------------------------------

  107.     // Information (base)

  108. 

  109.     PluginType getType() const noexcept override

  110.     {

  111.         return PLUGIN_DSSI;

  112.     }

  113. 

  114.     PluginCategory getCategory() const noexcept override

  115.     {

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

  117. 

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

  119.             return PLUGIN_CATEGORY_SYNTH;

  120. 

  121.         return CarlaPlugin::getCategory();

  122.     }

  123. 

  124.     long getUniqueId() const noexcept override

  125.     {

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

  127. 

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

  129.     }

  130. 

  131.     // -------------------------------------------------------------------

  132.     // Information (count)

  133. 

  134.     // nothing

  135. 

  136.     // -------------------------------------------------------------------

  137.     // Information (current data)

  138. 

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

  140.     {

  141.         CARLA_SAFE_ASSERT_RETURN(fUsesCustomData, 0);

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

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

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

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

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

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

  148. 

  149.         int ret = 0;

  150.         unsigned long dataSize = 0;

  151. 

  152.         try {

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

  154.         } catch(...) {}

  155. 

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

  157.     }

  158. 

  159.     // -------------------------------------------------------------------

  160.     // Information (per-plugin data)

  161. 

  162.     unsigned int getOptionsAvailable() const noexcept override

  163.     {

  164. #ifdef __USE_GNU

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

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

  167. #else

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

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

  170. #endif

  171. 

  172.         unsigned int options = 0x0;

  173. 

  174.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  175. 

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

  177.         {

  178.             options |= PLUGIN_OPTION_FIXED_BUFFERS;

  179. 

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

  181.             {

  182.                 if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  183.                     options |= PLUGIN_OPTION_FORCE_STEREO;

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

  185.                     options |= PLUGIN_OPTION_FORCE_STEREO;

  186.             }

  187.         }

  188. 

  189.         if (fUsesCustomData)

  190.             options |= PLUGIN_OPTION_USE_CHUNKS;

  191. 

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

  193.         {

  194.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  195.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  196.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  197.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

  198.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  199.         }

  200. 

  201.         return options;

  202.     }

  203. 

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

  205.     {

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

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

  208. 

  209.         return fParamBuffers[parameterId];

  210.     }

  211. 

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

  213.     {

  214.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  215. 

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

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

  218.         else

  219.             CarlaPlugin::getLabel(strBuf);

  220.     }

  221. 

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

  223.     {

  224.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  225. 

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

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

  228.         else

  229.             CarlaPlugin::getMaker(strBuf);

  230.     }

  231. 

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

  233.     {

  234.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  235. 

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

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

  238.         else

  239.             CarlaPlugin::getCopyright(strBuf);

  240.     }

  241. 

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

  243.     {

  244.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  245. 

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

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

  248.         else

  249.             CarlaPlugin::getRealName(strBuf);

  250.     }

  251. 

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

  253.     {

  254.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  256. 

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

  258. 

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

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

  261.         else

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

  263.     }

  264. 

  265.     // -------------------------------------------------------------------

  266.     // Set data (state)

  267. 

  268.     // nothing

  269. 

  270.     // -------------------------------------------------------------------

  271.     // Set data (internal stuff)

  272. 

  273.     // nothing

  274. 

  275.     // -------------------------------------------------------------------

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

  277. 

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

  279.     {

  280.         CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr,);

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

  282. 

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

  284.         fParamBuffers[parameterId] = fixedValue;

  285. 

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

  287.     }

  288. 

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

  290.     {

  291.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  292.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

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

  295.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

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

  297. 

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

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

  300. 

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

  302.         {

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

  304. 

  305.             if (fHandle2 != nullptr)

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

  307.         }

  308. 

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

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

  311. 

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

  313.         {

  314.             const ScopedSingleProcessLocker spl(this, true);

  315.             reloadPrograms(false);

  316.         }

  317. 

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

  319.     }

  320. 

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

  322.     {

  323.         CARLA_SAFE_ASSERT_RETURN(fUsesCustomData,);

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

  325.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

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

  327.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  328.         CARLA_SAFE_ASSERT_RETURN(fHandle2 == nullptr,);

  329.         CARLA_SAFE_ASSERT_RETURN(stringData != nullptr,);

  330. 

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

  332. 

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

  334. 

  335.         const ScopedSingleProcessLocker spl(this, true);

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

  337.     }

  338. 

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

  340.     {

  341.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

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

  343.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  345. 

  346.         if (index >= 0)

  347.         {

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

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

  350. 

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

  352. 

  353.             try {

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

  355.             } catch(...) {}

  356. 

  357.             if (fHandle2 != nullptr)

  358.             {

  359.                 try {

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

  361.                 } catch(...) {}

  362.             }

  363.         }

  364. 

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

  366.     }

  367. 

  368.     // -------------------------------------------------------------------

  369.     // Set ui stuff

  370. 

  371.     void showCustomUI(const bool yesNo) override

  372.     {

  373.         if (yesNo)

  374.         {

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

  376.         }

  377.         else

  378.         {

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

  380.             {

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

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

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

  384.             }

  385. 

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

  387.         }

  388.     }

  389. 

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

  391.     // Plugin state

  392. 

  393.     void reload() override

  394.     {

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

  396.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  397.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  398.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  400. 

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

  402. 

  403.         // Safely disable plugin for reload

  404.         const ScopedDisabler sd(this);

  405. 

  406.         if (pData->active)

  407.             deactivate();

  408. 

  409.         clearBuffers();

  410. 

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

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

  413. 

  414.         uint32_t aIns, aOuts, mIns, params;

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

  416. 

  417.         bool forcedStereoIn, forcedStereoOut;

  418.         forcedStereoIn = forcedStereoOut = false;

  419. 

  420.         bool needsCtrlIn, needsCtrlOut;

  421.         needsCtrlIn = needsCtrlOut = false;

  422. 

  423.         if (portCount > 0)

  424.         {

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

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

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

  428. 

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

  430.             {

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

  432. 

  433.                 if (LADSPA_IS_PORT_AUDIO(portType))

  434.                 {

  435.                     if (LADSPA_IS_PORT_INPUT(portType))

  436.                         aIns += 1;

  437.                     else if (LADSPA_IS_PORT_OUTPUT(portType))

  438.                         aOuts += 1;

  439.                 }

  440.                 else if (LADSPA_IS_PORT_CONTROL(portType))

  441.                     params += 1;

  442.             }

  443.         }

  444. 

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

  446.         {

  447.             if (fHandle2 == nullptr)

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

  449. 

  450.             if (fHandle2 != nullptr)

  451.             {

  452.                 if (aIns == 1)

  453.                 {

  454.                     aIns = 2;

  455.                     forcedStereoIn = true;

  456.                 }

  457. 

  458.                 if (aOuts == 1)

  459.                 {

  460.                     aOuts = 2;

  461.                     forcedStereoOut = true;

  462.                 }

  463.             }

  464.         }

  465. 

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

  467.         {

  468.             mIns = 1;

  469.             needsCtrlIn = true;

  470.         }

  471. 

  472.         if (aIns > 0)

  473.         {

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

  475.             fAudioInBuffers = new float*[aIns];

  476. 

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

  478.                 fAudioInBuffers[i] = nullptr;

  479.         }

  480. 

  481.         if (aOuts > 0)

  482.         {

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

  484.             fAudioOutBuffers = new float*[aOuts];

  485.             needsCtrlIn = true;

  486. 

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

  488.                 fAudioOutBuffers[i] = nullptr;

  489.         }

  490. 

  491.         if (params > 0)

  492.         {

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

  494. 

  495.             fParamBuffers = new float[params];

  496.             FLOAT_CLEAR(fParamBuffers, params);

  497.         }

  498. 

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

  500.         CarlaString portName;

  501. 

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

  503.         {

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

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

  506. 

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

  508. 

  509.             if (LADSPA_IS_PORT_AUDIO(portType))

  510.             {

  511.                 portName.clear();

  512. 

  513.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  514.                 {

  515.                     portName  = pData->name;

  516.                     portName += ":";

  517.                 }

  518. 

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

  520.                 portName.truncate(portNameSize);

  521. 

  522.                 if (LADSPA_IS_PORT_INPUT(portType))

  523.                 {

  524.                     uint32_t j = iAudioIn++;

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

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

  527. 

  528.                     if (forcedStereoIn)

  529.                     {

  530.                         portName += "_2";

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

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

  533.                     }

  534.                 }

  535.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  536.                 {

  537.                     uint32_t j = iAudioOut++;

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

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

  540. 

  541.                     if (forcedStereoOut)

  542.                     {

  543.                         portName += "_2";

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

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

  546.                     }

  547.                 }

  548.                 else

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

  550.             }

  551.             else if (LADSPA_IS_PORT_CONTROL(portType))

  552.             {

  553.                 uint32_t j = iCtrl++;

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

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

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

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

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

  559.                 pData->param.special[j] = PARAMETER_SPECIAL_NULL;

  560. 

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

  562. 

  563.                 // min value

  564.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  565.                     min = portRangeHints.LowerBound;

  566.                 else

  567.                     min = 0.0f;

  568. 

  569.                 // max value

  570.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  571.                     max = portRangeHints.UpperBound;

  572.                 else

  573.                     max = 1.0f;

  574. 

  575.                 if (min > max)

  576.                     max = min;

  577. 

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

  579.                 {

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

  581.                     max = min + 0.1f;

  582.                 }

  583. 

  584.                 // default value

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

  586. 

  587.                 if (def < min)

  588.                     def = min;

  589.                 else if (def > max)

  590.                     def = max;

  591. 

  592.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  593.                 {

  594.                     min *= sampleRate;

  595.                     max *= sampleRate;

  596.                     def *= sampleRate;

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

  598.                 }

  599. 

  600.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  601.                 {

  602.                     step = max - min;

  603.                     stepSmall = step;

  604.                     stepLarge = step;

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

  606.                 }

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

  608.                 {

  609.                     step = 1.0f;

  610.                     stepSmall = 1.0f;

  611.                     stepLarge = 10.0f;

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

  613.                 }

  614.                 else

  615.                 {

  616.                     float range = max - min;

  617.                     step = range/100.0f;

  618.                     stepSmall = range/1000.0f;

  619.                     stepLarge = range/10.0f;

  620.                 }

  621. 

  622.                 if (LADSPA_IS_PORT_INPUT(portType))

  623.                 {

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

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

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

  627.                     needsCtrlIn = true;

  628. 

  629.                     // MIDI CC value

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

  631.                     {

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

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

  634.                         {

  635.                             int16_t cc = DSSI_CC_NUMBER(controller);

  636.                             if (! MIDI_IS_CONTROL_BANK_SELECT(cc))

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

  638.                         }

  639.                     }

  640.                 }

  641.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  642.                 {

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

  644. 

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

  646.                     {

  647.                         min = 0.0f;

  648.                         max = sampleRate;

  649.                         def = 0.0f;

  650.                         step = 1.0f;

  651.                         stepSmall = 1.0f;

  652.                         stepLarge = 1.0f;

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

  654.                     }

  655.                     else

  656.                     {

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

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

  659.                         needsCtrlOut = true;

  660.                     }

  661.                 }

  662.                 else

  663.                 {

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

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

  666.                 }

  667. 

  668.                 // extra parameter hints

  669.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

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

  671. 

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

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

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

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

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

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

  678. 

  679.                 // Start parameters in their default values

  680.                 fParamBuffers[j] = def;

  681. 

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

  683. 

  684.                 if (fHandle2 != nullptr)

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

  686.             }

  687.             else

  688.             {

  689.                 // Not Audio or Control

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

  691. 

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

  693. 

  694.                 if (fHandle2 != nullptr)

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

  696.             }

  697.         }

  698. 

  699.         if (needsCtrlIn)

  700.         {

  701.             portName.clear();

  702. 

  703.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  704.             {

  705.                 portName  = pData->name;

  706.                 portName += ":";

  707.             }

  708. 

  709.             portName += "events-in";

  710.             portName.truncate(portNameSize);

  711. 

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

  713.         }

  714. 

  715.         if (needsCtrlOut)

  716.         {

  717.             portName.clear();

  718. 

  719.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  720.             {

  721.                 portName  = pData->name;

  722.                 portName += ":";

  723.             }

  724. 

  725.             portName += "events-out";

  726.             portName.truncate(portNameSize);

  727. 

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

  729.         }

  730. 

  731.         if (forcedStereoIn || forcedStereoOut)

  732.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  733.         else

  734.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  735. 

  736.         // plugin hints

  737.         pData->hints = 0x0;

  738. 

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

  740.             pData->hints |= PLUGIN_IS_RTSAFE;

  741. 

  742.         if (fUiFilename != nullptr)

  743.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  744. 

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

  746.             pData->hints |= PLUGIN_CAN_DRYWET;

  747. 

  748.         if (aOuts > 0)

  749.             pData->hints |= PLUGIN_CAN_VOLUME;

  750. 

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

  752.             pData->hints |= PLUGIN_CAN_BALANCE;

  753. 

  754.         // extra plugin hints

  755.         pData->extraHints = 0x0;

  756. 

  757.         if (mIns > 0)

  758.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  759. 

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

  761.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  762. 

  763.         // check latency

  764.         if (pData->hints & PLUGIN_CAN_DRYWET)

  765.         {

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

  767.             {

  768.                 if (pData->param.special[i] != PARAMETER_SPECIAL_LATENCY)

  769.                    continue;

  770. 

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

  772. 

  773.                 float tmpIn[aIns][2];

  774.                 float tmpOut[aOuts][2];

  775. 

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

  777.                 {

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

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

  780. 

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

  782.                 }

  783. 

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

  785.                 {

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

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

  788. 

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

  790.                 }

  791. 

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

  793.                     fDescriptor->activate(fHandle);

  794. 

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

  796. 

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

  798.                     fDescriptor->deactivate(fHandle);

  799. 

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

  801. 

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

  803.                 {

  804.                     pData->latency = latency;

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

  806.                     pData->recreateLatencyBuffers();

  807.                 }

  808. 

  809.                 break;

  810.             }

  811.         }

  812. 

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

  814.         reloadPrograms(true);

  815. 

  816.         if (pData->active)

  817.             activate();

  818. 

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

  820.     }

  821. 

  822.     void reloadPrograms(const bool doInit) override

  823.     {

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

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

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

  827. 

  828.         // Delete old programs

  829.         pData->midiprog.clear();

  830. 

  831.         // Query new programs

  832.         uint32_t newCount = 0;

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

  834.         {

  835.             for (; fDssiDescriptor->get_program(fHandle, newCount) != nullptr;)

  836.                 ++newCount;

  837.         }

  838. 

  839.         if (newCount > 0)

  840.         {

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

  842. 

  843.             // Update data

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

  845.             {

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

  847.                 CARLA_ASSERT(pdesc != nullptr);

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

  849. 

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

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

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

  853.             }

  854.         }

  855. 

  856. #ifndef BUILD_BRIDGE

  857.         // Update OSC Names

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

  859.         {

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

  861. 

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

  863.                 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);

  864.         }

  865. #endif

  866. 

  867.         if (doInit)

  868.         {

  869.             if (newCount > 0)

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

  871.         }

  872.         else

  873.         {

  874.             // Check if current program is invalid

  875.             bool programChanged = false;

  876. 

  877.             if (newCount == oldCount+1)

  878.             {

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

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

  881.                 programChanged = true;

  882.             }

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

  884.             {

  885.                 // programs exist now, but not before

  886.                 pData->midiprog.current = 0;

  887.                 programChanged = true;

  888.             }

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

  890.             {

  891.                 // programs existed before, but not anymore

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

  893.                 programChanged = true;

  894.             }

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

  896.             {

  897.                 // current midi program > count

  898.                 pData->midiprog.current = 0;

  899.                 programChanged = true;

  900.             }

  901.             else

  902.             {

  903.                 // no change

  904.                 pData->midiprog.current = current;

  905.             }

  906. 

  907.             if (programChanged)

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

  909. 

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

  911.         }

  912.     }

  913. 

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

  915.     // Plugin processing

  916. 

  917.     void activate() noexcept override

  918.     {

  919.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  920.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  921. 

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

  923.         {

  924.             try {

  925.                 fDescriptor->activate(fHandle);

  926.             } catch(...) {}

  927. 

  928.             if (fHandle2 != nullptr)

  929.             {

  930.                 try {

  931.                     fDescriptor->activate(fHandle2);

  932.                 } catch(...) {}

  933.             }

  934.         }

  935.     }

  936. 

  937.     void deactivate() noexcept override

  938.     {

  939.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  940.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  941. 

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

  943.         {

  944.             try {

  945.                 fDescriptor->deactivate(fHandle);

  946.             } catch(...) {}

  947. 

  948.             if (fHandle2 != nullptr)

  949.             {

  950.                 try {

  951.                     fDescriptor->deactivate(fHandle2);

  952.                 } catch(...) {}

  953.             }

  954.         }

  955.     }

  956. 

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

  958.     {

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

  960.         // Check if active

  961. 

  962.         if (! pData->active)

  963.         {

  964.             // disable any output sound

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

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

  967.             return;

  968.         }

  969. 

  970.         unsigned long midiEventCount = 0;

  971. 

  972.         // --------------------------------------------------------------------------------------------------------

  973.         // Check if needs reset

  974. 

  975.         if (pData->needsReset)

  976.         {

  977.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  978.             {

  979.                 midiEventCount = MAX_MIDI_CHANNELS*2;

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

  981. 

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

  983.                 {

  984.                     fMidiEvents[i].type = SND_SEQ_EVENT_CONTROLLER;

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

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

  987. 

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

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

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

  991.                 }

  992.             }

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

  994.             {

  995.                 midiEventCount = MAX_MIDI_NOTE;

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

  997. 

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

  999.                 {

  1000.                     fMidiEvents[i].type = SND_SEQ_EVENT_NOTEOFF;

  1001.                     fMidiEvents[i].data.note.channel = static_cast<uchar>(pData->ctrlChannel);

  1002.                     fMidiEvents[i].data.note.note    = i;

  1003.                 }

  1004.             }

  1005. 

  1006.             if (pData->latency > 0)

  1007.             {

  1008.                 for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1009.                     FLOAT_CLEAR(pData->latencyBuffers[i], pData->latency);

  1010.             }

  1011. 

  1012.             pData->needsReset = false;

  1013.         }

  1014. 

  1015.         // --------------------------------------------------------------------------------------------------------

  1016.         // Event Input and Processing

  1017. 

  1018.         if (pData->event.portIn != nullptr)

  1019.         {

  1020.             // ----------------------------------------------------------------------------------------------------

  1021.             // MIDI Input (External)

  1022. 

  1023.             if (pData->extNotes.mutex.tryLock())

  1024.             {

  1025.                 for (; midiEventCount < kPluginMaxMidiEvents && ! pData->extNotes.data.isEmpty();)

  1026.                 {

  1027.                     const ExternalMidiNote& note(pData->extNotes.data.getFirst(true));

  1028. 

  1029.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1030. 

  1031.                     snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1032.                     carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1033. 

  1034.                     midiEvent.type               = (note.velo > 0) ? SND_SEQ_EVENT_NOTEON : SND_SEQ_EVENT_NOTEOFF;

  1035.                     midiEvent.data.note.channel  = static_cast<uchar>(note.channel);

  1036.                     midiEvent.data.note.note     = note.note;

  1037.                     midiEvent.data.note.velocity = note.velo;

  1038.                 }

  1039. 

  1040.                 pData->extNotes.mutex.unlock();

  1041. 

  1042.             } // End of MIDI Input (External)

  1043. 

  1044.             // ----------------------------------------------------------------------------------------------------

  1045.             // Event Input (System)

  1046. 

  1047.             bool allNotesOffSent  = false;

  1048.             bool isSampleAccurate = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1049. 

  1050.             uint32_t numEvents  = pData->event.portIn->getEventCount();

  1051.             uint32_t startTime  = 0;

  1052.             uint32_t timeOffset = 0;

  1053.             uint32_t nextBankId;

  1054. 

  1055.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1056.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1057.             else

  1058.                 nextBankId = 0;

  1059. 

  1060.             for (uint32_t i=0; i < numEvents; ++i)

  1061.             {

  1062.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1063. 

  1064.                 if (event.time >= frames)

  1065.                     continue;

  1066. 

  1067.                 CARLA_ASSERT_INT2(event.time >= timeOffset, event.time, timeOffset);

  1068. 

  1069.                 if (isSampleAccurate && event.time > timeOffset)

  1070.                 {

  1071.                     if (processSingle(inBuffer, outBuffer, event.time - timeOffset, timeOffset, midiEventCount))

  1072.                     {

  1073.                         startTime  = 0;

  1074.                         timeOffset = event.time;

  1075.                         midiEventCount = 0;

  1076. 

  1077.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1078.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1079.                         else

  1080.                             nextBankId = 0;

  1081.                     }

  1082.                     else

  1083.                         startTime += timeOffset;

  1084.                 }

  1085. 

  1086.                 switch (event.type)

  1087.                 {

  1088.                 case kEngineEventTypeNull:

  1089.                     break;

  1090. 

  1091.                 case kEngineEventTypeControl: {

  1092.                     const EngineControlEvent& ctrlEvent(event.ctrl);

  1093. 

  1094.                     switch (ctrlEvent.type)

  1095.                     {

  1096.                     case kEngineControlEventTypeNull:

  1097.                         break;

  1098. 

  1099.                     case kEngineControlEventTypeParameter: {

  1100. #ifndef BUILD_BRIDGE

  1101.                         // Control backend stuff

  1102.                         if (event.channel == pData->ctrlChannel)

  1103.                         {

  1104.                             float value;

  1105. 

  1106.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1107.                             {

  1108.                                 value = ctrlEvent.value;

  1109.                                 setDryWet(value, false, false);

  1110.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1111.                                 break;

  1112.                             }

  1113. 

  1114.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1115.                             {

  1116.                                 value = ctrlEvent.value*127.0f/100.0f;

  1117.                                 setVolume(value, false, false);

  1118.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1119.                                 break;

  1120.                             }

  1121. 

  1122.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1123.                             {

  1124.                                 float left, right;

  1125.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1126. 

  1127.                                 if (value < 0.0f)

  1128.                                 {

  1129.                                     left  = -1.0f;

  1130.                                     right = (value*2.0f)+1.0f;

  1131.                                 }

  1132.                                 else if (value > 0.0f)

  1133.                                 {

  1134.                                     left  = (value*2.0f)-1.0f;

  1135.                                     right = 1.0f;

  1136.                                 }

  1137.                                 else

  1138.                                 {

  1139.                                     left  = -1.0f;

  1140.                                     right = 1.0f;

  1141.                                 }

  1142. 

  1143.                                 setBalanceLeft(left, false, false);

  1144.                                 setBalanceRight(right, false, false);

  1145.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1146.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1147.                                 break;

  1148.                             }

  1149.                         }

  1150. #endif

  1151. 

  1152.                         // Control plugin parameters

  1153.                         uint32_t k;

  1154.                         for (k=0; k < pData->param.count; ++k)

  1155.                         {

  1156.                             if (pData->param.data[k].midiChannel != event.channel)

  1157.                                 continue;

  1158.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1159.                                 continue;

  1160.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1161.                                 continue;

  1162.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1163.                                 continue;

  1164. 

  1165.                             float value;

  1166. 

  1167.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1168.                             {

  1169.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1170.                             }

  1171.                             else

  1172.                             {

  1173.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1174. 

  1175.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1176.                                     value = std::rint(value);

  1177.                             }

  1178. 

  1179.                             setParameterValue(k, value, false, false, false);

  1180.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1181.                             break;

  1182.                         }

  1183. 

  1184.                         // check if event is already handled

  1185.                         if (k == pData->param.count)

  1186.                             break;

  1187. 

  1188.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param <= 0x5F)

  1189.                         {

  1190.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1191.                                 continue;

  1192. 

  1193.                             snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1194.                             carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1195. 

  1196.                             midiEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1197. 

  1198.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1199.                             midiEvent.data.control.channel = event.channel;

  1200.                             midiEvent.data.control.param   = ctrlEvent.param;

  1201.                             midiEvent.data.control.value   = int8_t(ctrlEvent.value*127.0f);

  1202.                         }

  1203. 

  1204.                         break;

  1205.                     } // case kEngineControlEventTypeParameter

  1206. 

  1207.                     case kEngineControlEventTypeMidiBank:

  1208.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1209.                             nextBankId = ctrlEvent.param;

  1210.                         break;

  1211. 

  1212.                     case kEngineControlEventTypeMidiProgram:

  1213.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1214.                         {

  1215.                             const uint32_t nextProgramId = ctrlEvent.param;

  1216. 

  1217.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1218.                             {

  1219.                                 if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1220.                                 {

  1221.                                     const int32_t index(static_cast<int32_t>(k));

  1222.                                     setMidiProgram(index, false, false, false);

  1223.                                     pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, index, 0, 0.0f);

  1224.                                     break;

  1225.                                 }

  1226.                             }

  1227.                         }

  1228.                         break;

  1229. 

  1230.                     case kEngineControlEventTypeAllSoundOff:

  1231.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1232.                         {

  1233.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1234.                                 continue;

  1235. 

  1236.                             snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1237.                             carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1238. 

  1239.                             midiEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1240. 

  1241.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1242.                             midiEvent.data.control.channel = event.channel;

  1243.                             midiEvent.data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1244.                         }

  1245.                         break;

  1246. 

  1247.                     case kEngineControlEventTypeAllNotesOff:

  1248.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1249.                         {

  1250.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1251.                             {

  1252.                                 allNotesOffSent = true;

  1253.                                 sendMidiAllNotesOffToCallback();

  1254.                             }

  1255. 

  1256.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1257.                                 continue;

  1258. 

  1259.                             snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1260.                             carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1261. 

  1262.                             midiEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1263. 

  1264.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1265.                             midiEvent.data.control.channel = event.channel;

  1266.                             midiEvent.data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1267. 

  1268.                             midiEventCount += 1;

  1269.                         }

  1270.                         break;

  1271.                     } // switch (ctrlEvent.type)

  1272.                     break;

  1273.                 } // case kEngineEventTypeControl

  1274. 

  1275.                 case kEngineEventTypeMidi: {

  1276.                     if (midiEventCount >= kPluginMaxMidiEvents)

  1277.                         continue;

  1278. 

  1279.                     const EngineMidiEvent& engineEvent(event.midi);

  1280. 

  1281.                     uint8_t status  = uint8_t(MIDI_GET_STATUS_FROM_DATA(engineEvent.data));

  1282.                     uint8_t channel = event.channel;

  1283. 

  1284.                     // Fix bad note-off (per DSSI spec)

  1285.                     if (MIDI_IS_STATUS_NOTE_ON(status) && engineEvent.data[2] == 0)

  1286.                         status = MIDI_STATUS_NOTE_OFF;

  1287. 

  1288.                     snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount]);

  1289.                     carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1290. 

  1291.                     midiEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1292. 

  1293.                     switch (status)

  1294.                     {

  1295.                     case MIDI_STATUS_NOTE_OFF: {

  1296.                         const uint8_t note = engineEvent.data[1];

  1297. 

  1298.                         midiEvent.type = SND_SEQ_EVENT_NOTEOFF;

  1299.                         midiEvent.data.note.channel = channel;

  1300.                         midiEvent.data.note.note    = note;

  1301. 

  1302.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0f);

  1303.                         break;

  1304.                     }

  1305. 

  1306.                     case MIDI_STATUS_NOTE_ON: {

  1307.                         const uint8_t note = engineEvent.data[1];

  1308.                         const uint8_t velo = engineEvent.data[2];

  1309. 

  1310.                         midiEvent.type = SND_SEQ_EVENT_NOTEON;

  1311.                         midiEvent.data.note.channel  = channel;

  1312.                         midiEvent.data.note.note     = note;

  1313.                         midiEvent.data.note.velocity = velo;

  1314. 

  1315.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1316.                         break;

  1317.                     }

  1318. 

  1319.                     case MIDI_STATUS_POLYPHONIC_AFTERTOUCH:

  1320.                         if (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH)

  1321.                         {

  1322.                             const uint8_t note     = engineEvent.data[1];

  1323.                             const uint8_t pressure = engineEvent.data[2];

  1324. 

  1325.                             midiEvent.type = SND_SEQ_EVENT_KEYPRESS;

  1326.                             midiEvent.data.note.channel  = channel;

  1327.                             midiEvent.data.note.note     = note;

  1328.                             midiEvent.data.note.velocity = pressure;

  1329.                         }

  1330.                         break;

  1331. 

  1332.                     case MIDI_STATUS_CONTROL_CHANGE:

  1333.                         if (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1334.                         {

  1335.                             const uint8_t control = engineEvent.data[1];

  1336.                             const uint8_t value   = engineEvent.data[2];

  1337. 

  1338.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1339.                             midiEvent.data.control.channel = channel;

  1340.                             midiEvent.data.control.param   = control;

  1341.                             midiEvent.data.control.value   = value;

  1342.                         }

  1343.                         break;

  1344. 

  1345.                     case MIDI_STATUS_CHANNEL_PRESSURE:

  1346.                         if (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE)

  1347.                         {

  1348.                             const uint8_t pressure = engineEvent.data[1];

  1349. 

  1350.                             midiEvent.type = SND_SEQ_EVENT_CHANPRESS;

  1351.                             midiEvent.data.control.channel = channel;

  1352.                             midiEvent.data.control.value   = pressure;

  1353.                         }

  1354.                         break;

  1355. 

  1356.                     case MIDI_STATUS_PITCH_WHEEL_CONTROL:

  1357.                         if (pData->options & PLUGIN_OPTION_SEND_PITCHBEND)

  1358.                         {

  1359.                             const uint8_t lsb = engineEvent.data[1];

  1360.                             const uint8_t msb = engineEvent.data[2];

  1361. 

  1362.                             midiEvent.type = SND_SEQ_EVENT_PITCHBEND;

  1363.                             midiEvent.data.control.channel = channel;

  1364.                             midiEvent.data.control.value   = ((msb << 7) | lsb) - 8192;

  1365.                         }

  1366.                         break;

  1367. 

  1368.                     default:

  1369.                         continue;

  1370.                         break;

  1371.                     } // switch (status)

  1372. 

  1373.                     midiEventCount += 1;

  1374.                     break;

  1375.                 } // case kEngineEventTypeMidi

  1376.                 } // switch (event.type)

  1377.             }

  1378. 

  1379.             pData->postRtEvents.trySplice();

  1380. 

  1381.             if (frames > timeOffset)

  1382.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset, midiEventCount);

  1383. 

  1384.         } // End of Event Input and Processing

  1385. 

  1386.         // --------------------------------------------------------------------------------------------------------

  1387.         // Plugin processing (no events)

  1388. 

  1389.         else

  1390.         {

  1391.             processSingle(inBuffer, outBuffer, frames, 0, midiEventCount);

  1392. 

  1393.         } // End of Plugin processing (no events)

  1394. 

  1395.         CARLA_PROCESS_CONTINUE_CHECK;

  1396. 

  1397.         // --------------------------------------------------------------------------------------------------------

  1398.         // Control Output

  1399. 

  1400.         if (pData->event.portOut != nullptr)

  1401.         {

  1402.             uint8_t  channel;

  1403.             uint16_t param;

  1404.             float    value;

  1405. 

  1406.             for (uint32_t k=0; k < pData->param.count; ++k)

  1407.             {

  1408.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1409.                     continue;

  1410. 

  1411.                 pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1412. 

  1413.                 if (pData->param.data[k].midiCC > 0)

  1414.                 {

  1415.                     channel = pData->param.data[k].midiChannel;

  1416.                     param   = static_cast<uint16_t>(pData->param.data[k].midiCC);

  1417.                     value   = pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]);

  1418.                     pData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value);

  1419.                 }

  1420.             }

  1421.         } // End of Control Output

  1422.     }

  1423. 

  1424.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset, const unsigned long midiEventCount)

  1425.     {

  1426.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1427. 

  1428.         if (pData->audioIn.count > 0)

  1429.         {

  1430.             CARLA_SAFE_ASSERT_RETURN(inBuffer != nullptr, false);

  1431.         }

  1432.         if (pData->audioOut.count > 0)

  1433.         {

  1434.             CARLA_SAFE_ASSERT_RETURN(outBuffer != nullptr, false);

  1435.         }

  1436. 

  1437.         // --------------------------------------------------------------------------------------------------------

  1438.         // Try lock, silence otherwise

  1439. 

  1440.         if (pData->engine->isOffline())

  1441.         {

  1442.             pData->singleMutex.lock();

  1443.         }

  1444.         else if (! pData->singleMutex.tryLock())

  1445.         {

  1446.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1447.             {

  1448.                 for (uint32_t k=0; k < frames; ++k)

  1449.                     outBuffer[i][k+timeOffset] = 0.0f;

  1450.             }

  1451. 

  1452.             return false;

  1453.         }

  1454. 

  1455.         // --------------------------------------------------------------------------------------------------------

  1456.         // Reset audio buffers

  1457. 

  1458.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1459.             FLOAT_COPY(fAudioInBuffers[i], inBuffer[i]+timeOffset, frames);

  1460. 

  1461.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1462.             FLOAT_CLEAR(fAudioOutBuffers[i], frames);

  1463. 

  1464.         // --------------------------------------------------------------------------------------------------------

  1465.         // Run plugin

  1466. 

  1467.         if (fDssiDescriptor->run_synth != nullptr)

  1468.         {

  1469.             fDssiDescriptor->run_synth(fHandle, frames, fMidiEvents, midiEventCount);

  1470. 

  1471.             if (fHandle2 != nullptr)

  1472.                 fDssiDescriptor->run_synth(fHandle2, frames, fMidiEvents, midiEventCount);

  1473.         }

  1474.         else if (fDssiDescriptor->run_multiple_synths != nullptr)

  1475.         {

  1476.             unsigned long instances = (fHandle2 != nullptr) ? 2 : 1;

  1477.             LADSPA_Handle handlePtr[2] = { fHandle, fHandle2 };

  1478.             snd_seq_event_t* midiEventsPtr[2] = { fMidiEvents, fMidiEvents };

  1479.             unsigned long midiEventCountPtr[2] = { midiEventCount, midiEventCount };

  1480.             fDssiDescriptor->run_multiple_synths(instances, handlePtr, frames, midiEventsPtr, midiEventCountPtr);

  1481.         }

  1482.         else

  1483.         {

  1484.             fDescriptor->run(fHandle, frames);

  1485. 

  1486.             if (fHandle2 != nullptr)

  1487.                 fDescriptor->run(fHandle2, frames);

  1488.         }

  1489. 

  1490. #ifndef BUILD_BRIDGE

  1491.         // --------------------------------------------------------------------------------------------------------

  1492.         // Post-processing (dry/wet, volume and balance)

  1493. 

  1494.         {

  1495.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && pData->postProc.dryWet != 1.0f;

  1496.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && (pData->postProc.balanceLeft != -1.0f || pData->postProc.balanceRight != 1.0f);

  1497. 

  1498.             bool isPair;

  1499.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1500. 

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

  1502.             {

  1503.                 // Dry/Wet

  1504.                 if (doDryWet)

  1505.                 {

  1506.                     for (uint32_t k=0; k < frames; ++k)

  1507.                     {

  1508.                         // TODO

  1509.                         //if (k < pData->latency && pData->latency < frames)

  1510.                         //    bufValue = (pData->audioIn.count == 1) ? pData->latencyBuffers[0][k] : pData->latencyBuffers[i][k];

  1511.                         //else

  1512.                         //    bufValue = (pData->audioIn.count == 1) ? inBuffer[0][k-m_latency] : inBuffer[i][k-m_latency];

  1513. 

  1514.                         bufValue = fAudioInBuffers[(pData->audioIn.count == 1) ? 0 : i][k];

  1515.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1516.                     }

  1517.                 }

  1518. 

  1519.                 // Balance

  1520.                 if (doBalance)

  1521.                 {

  1522.                     isPair = (i % 2 == 0);

  1523. 

  1524.                     if (isPair)

  1525.                     {

  1526.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1527.                         FLOAT_COPY(oldBufLeft, fAudioOutBuffers[i], frames);

  1528.                     }

  1529. 

  1530.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1531.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1532. 

  1533.                     for (uint32_t k=0; k < frames; ++k)

  1534.                     {

  1535.                         if (isPair)

  1536.                         {

  1537.                             // left

  1538.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1539.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1540.                         }

  1541.                         else

  1542.                         {

  1543.                             // right

  1544.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1545.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1546.                         }

  1547.                     }

  1548.                 }

  1549. 

  1550.                 // Volume (and buffer copy)

  1551.                 {

  1552.                     for (uint32_t k=0; k < frames; ++k)

  1553.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1554.                 }

  1555.             }

  1556. 

  1557. #if 0

  1558.             // Latency, save values for next callback, TODO

  1559.             if (pData->latency > 0 && pData->latency < frames)

  1560.             {

  1561.                 for (i=0; i < pData->audioIn.count; ++i)

  1562.                     FLOAT_COPY(pData->latencyBuffers[i], inBuffer[i] + (frames - pData->latency), pData->latency);

  1563.             }

  1564. #endif

  1565.         } // End of Post-processing

  1566. 

  1567. #else // BUILD_BRIDGE

  1568.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1569.         {

  1570.             for (uint32_t k=0; k < frames; ++k)

  1571.                 outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1572.         }

  1573. #endif

  1574. 

  1575.         // --------------------------------------------------------------------------------------------------------

  1576. 

  1577.         pData->singleMutex.unlock();

  1578.         return true;

  1579.     }

  1580. 

  1581.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1582.     {

  1583.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1584.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1585. 

  1586.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1587.         {

  1588.             if (fAudioInBuffers[i] != nullptr)

  1589.                 delete[] fAudioInBuffers[i];

  1590.             fAudioInBuffers[i] = new float[newBufferSize];

  1591.         }

  1592. 

  1593.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1594.         {

  1595.             if (fAudioOutBuffers[i] != nullptr)

  1596.                 delete[] fAudioOutBuffers[i];

  1597.             fAudioOutBuffers[i] = new float[newBufferSize];

  1598.         }

  1599. 

  1600.         if (fHandle2 == nullptr)

  1601.         {

  1602.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1603.             {

  1604.                 CARLA_ASSERT(fAudioInBuffers[i] != nullptr);

  1605.                 fDescriptor->connect_port(fHandle, pData->audioIn.ports[i].rindex, fAudioInBuffers[i]);

  1606.             }

  1607. 

  1608.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1609.             {

  1610.                 CARLA_ASSERT(fAudioOutBuffers[i] != nullptr);

  1611.                 fDescriptor->connect_port(fHandle, pData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  1612.             }

  1613.         }

  1614.         else

  1615.         {

  1616.             if (pData->audioIn.count > 0)

  1617.             {

  1618.                 CARLA_ASSERT(pData->audioIn.count == 2);

  1619.                 CARLA_ASSERT(fAudioInBuffers[0] != nullptr);

  1620.                 CARLA_ASSERT(fAudioInBuffers[1] != nullptr);

  1621. 

  1622.                 fDescriptor->connect_port(fHandle,  pData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  1623.                 fDescriptor->connect_port(fHandle2, pData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  1624.             }

  1625. 

  1626.             if (pData->audioOut.count > 0)

  1627.             {

  1628.                 CARLA_ASSERT(pData->audioOut.count == 2);

  1629.                 CARLA_ASSERT(fAudioOutBuffers[0] != nullptr);

  1630.                 CARLA_ASSERT(fAudioOutBuffers[1] != nullptr);

  1631. 

  1632.                 fDescriptor->connect_port(fHandle,  pData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  1633.                 fDescriptor->connect_port(fHandle2, pData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  1634.             }

  1635.         }

  1636. 

  1637.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - end", newBufferSize);

  1638.     }

  1639. 

  1640.     void sampleRateChanged(const double newSampleRate) override

  1641.     {

  1642.         CARLA_ASSERT_INT(newSampleRate > 0.0, (int)newSampleRate);

  1643.         carla_debug("DssiPlugin::sampleRateChanged(%g) - start", newSampleRate);

  1644. 

  1645.         // TODO

  1646.         (void)newSampleRate;

  1647. 

  1648.         carla_debug("DssiPlugin::sampleRateChanged(%g) - end", newSampleRate);

  1649.     }

  1650. 

  1651.     // -------------------------------------------------------------------

  1652.     // Plugin buffers

  1653. 

  1654.     void clearBuffers() override

  1655.     {

  1656.         carla_debug("DssiPlugin::clearBuffers() - start");

  1657. 

  1658.         if (fAudioInBuffers != nullptr)

  1659.         {

  1660.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1661.             {

  1662.                 if (fAudioInBuffers[i] != nullptr)

  1663.                 {

  1664.                     delete[] fAudioInBuffers[i];

  1665.                     fAudioInBuffers[i] = nullptr;

  1666.                 }

  1667.             }

  1668. 

  1669.             delete[] fAudioInBuffers;

  1670.             fAudioInBuffers = nullptr;

  1671.         }

  1672. 

  1673.         if (fAudioOutBuffers != nullptr)

  1674.         {

  1675.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1676.             {

  1677.                 if (fAudioOutBuffers[i] != nullptr)

  1678.                 {

  1679.                     delete[] fAudioOutBuffers[i];

  1680.                     fAudioOutBuffers[i] = nullptr;

  1681.                 }

  1682.             }

  1683. 

  1684.             delete[] fAudioOutBuffers;

  1685.             fAudioOutBuffers = nullptr;

  1686.         }

  1687. 

  1688.         if (fParamBuffers != nullptr)

  1689.         {

  1690.             delete[] fParamBuffers;

  1691.             fParamBuffers = nullptr;

  1692.         }

  1693. 

  1694.         CarlaPlugin::clearBuffers();

  1695. 

  1696.         carla_debug("DssiPlugin::clearBuffers() - end");

  1697.     }

  1698. 

  1699.     // -------------------------------------------------------------------

  1700.     // Post-poned UI Stuff

  1701. 

  1702.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  1703.     {

  1704.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  1705. 

  1706.         if (pData->osc.data.target == nullptr)

  1707.             return;

  1708. 

  1709.         osc_send_control(pData->osc.data, pData->param.data[index].rindex, value);

  1710.     }

  1711. 

  1712.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1713.     {

  1714.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1715. 

  1716.         if (pData->osc.data.target == nullptr)

  1717.             return;

  1718. 

  1719.         osc_send_program(pData->osc.data, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  1720.     }

  1721. 

  1722.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1723.     {

  1724.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1725.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1726.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  1727. 

  1728.         if (pData->osc.data.target == nullptr)

  1729.             return;

  1730. 

  1731. #if 0

  1732.         uint8_t midiData[4] = { 0 };

  1733.         midiData[1] = MIDI_STATUS_NOTE_ON + channel;

  1734.         midiData[2] = note;

  1735.         midiData[3] = velo;

  1736. 

  1737.         osc_send_midi(pData->osc.data, midiData);

  1738. #endif

  1739.     }

  1740. 

  1741.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  1742.     {

  1743.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1744.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1745. 

  1746.         if (pData->osc.data.target == nullptr)

  1747.             return;

  1748. 

  1749. #if 0

  1750.         uint8_t midiData[4] = { 0 };

  1751.         midiData[1] = MIDI_STATUS_NOTE_OFF + channel;

  1752.         midiData[2] = note;

  1753. 

  1754.         osc_send_midi(pData->osc.data, midiData);

  1755. #endif

  1756.     }

  1757. 

  1758.     // -------------------------------------------------------------------

  1759. 

  1760.     const void* getExtraStuff() const noexcept override

  1761.     {

  1762.         return fUiFilename;

  1763.     }

  1764. 

  1765.     bool init(const char* const filename, const char* const name, const char* const label)

  1766.     {

  1767.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  1768. 

  1769.         // ---------------------------------------------------------------

  1770.         // first checks

  1771. 

  1772.         if (pData->client != nullptr)

  1773.         {

  1774.             pData->engine->setLastError("Plugin client is already registered");

  1775.             return false;

  1776.         }

  1777. 

  1778.         if (filename == nullptr || filename[0] == '\0')

  1779.         {

  1780.             pData->engine->setLastError("null filename");

  1781.             return false;

  1782.         }

  1783. 

  1784.         if (label == nullptr || label[0] == '\0')

  1785.         {

  1786.             pData->engine->setLastError("null label");

  1787.             return false;

  1788.         }

  1789. 

  1790.         // ---------------------------------------------------------------

  1791.         // open DLL

  1792. 

  1793.         if (! pData->libOpen(filename))

  1794.         {

  1795.             pData->engine->setLastError(pData->libError(filename));

  1796.             return false;

  1797.         }

  1798. 

  1799.         // ---------------------------------------------------------------

  1800.         // get DLL main entry

  1801. 

  1802.         const DSSI_Descriptor_Function descFn = (DSSI_Descriptor_Function)pData->libSymbol("dssi_descriptor");

  1803. 

  1804.         if (descFn == nullptr)

  1805.         {

  1806.             pData->engine->setLastError("Could not find the DSSI Descriptor in the plugin library");

  1807.             return false;

  1808.         }

  1809. 

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

  1811.         // get descriptor that matches label

  1812. 

  1813.         unsigned long i = 0;

  1814.         while ((fDssiDescriptor = descFn(i++)) != nullptr)

  1815.         {

  1816.             fDescriptor = fDssiDescriptor->LADSPA_Plugin;

  1817.             if (fDescriptor != nullptr && fDescriptor->Label != nullptr && std::strcmp(fDescriptor->Label, label) == 0)

  1818.                 break;

  1819.         }

  1820. 

  1821.         if (fDescriptor == nullptr || fDssiDescriptor == nullptr)

  1822.         {

  1823.             pData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  1824.             return false;

  1825.         }

  1826. 

  1827.         // ---------------------------------------------------------------

  1828.         // check if uses global instance

  1829. 

  1830.         if (fDssiDescriptor->run_synth == nullptr && fDssiDescriptor->run_multiple_synths != nullptr)

  1831.         {

  1832.             if (! addUniqueMultiSynth(fDescriptor->Label))

  1833.             {

  1834.                 pData->engine->setLastError("This plugin uses a global instance and can't be used more than once safely");

  1835.                 return false;

  1836.             }

  1837.         }

  1838. 

  1839.         // ---------------------------------------------------------------

  1840.         // get info

  1841. 

  1842.         if (name != nullptr && name[0] != '\0')

  1843.             pData->name = pData->engine->getUniquePluginName(name);

  1844.         else if (fDescriptor->Name != nullptr && fDescriptor->Name[0] != '\0')

  1845.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Name);

  1846.         else

  1847.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Label);

  1848. 

  1849.         pData->filename = carla_strdup(filename);

  1850. 

  1851.         // ---------------------------------------------------------------

  1852.         // register client

  1853. 

  1854.         pData->client = pData->engine->addClient(this);

  1855. 

  1856.         if (pData->client == nullptr || ! pData->client->isOk())

  1857.         {

  1858.             pData->engine->setLastError("Failed to register plugin client");

  1859.             return false;

  1860.         }

  1861. 

  1862.         // ---------------------------------------------------------------

  1863.         // initialize plugin

  1864. 

  1865.         fHandle = fDescriptor->instantiate(fDescriptor, (unsigned long)pData->engine->getSampleRate());

  1866. 

  1867.         if (fHandle == nullptr)

  1868.         {

  1869.             pData->engine->setLastError("Plugin failed to initialize");

  1870.             return false;

  1871.         }

  1872. 

  1873.         // ---------------------------------------------------------------

  1874.         // check for custom data extension

  1875. 

  1876.         if (fDssiDescriptor->configure != nullptr)

  1877.         {

  1878.             if (char* const error = fDssiDescriptor->configure(fHandle, DSSI_CUSTOMDATA_EXTENSION_KEY, ""))

  1879.             {

  1880.                 if (std::strcmp(error, "true") == 0 && fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->set_custom_data != nullptr)

  1881.                     fUsesCustomData = true;

  1882. 

  1883.                 std::free(error);

  1884.             }

  1885.         }

  1886. 

  1887.         // ---------------------------------------------------------------

  1888.         // gui stuff

  1889. 

  1890.         if (const char* const guiFilename = find_dssi_ui(filename, fDescriptor->Label))

  1891.         {

  1892.             pData->osc.thread.setOscData(guiFilename, fDescriptor->Label);

  1893.             fUiFilename = guiFilename;

  1894.         }

  1895. 

  1896.         // ---------------------------------------------------------------

  1897.         // load plugin settings

  1898. 

  1899.         {

  1900. #ifdef __USE_GNU

  1901.             const bool isAmSynth(strcasestr(pData->filename, "amsynth"));

  1902.             const bool isDssiVst(strcasestr(pData->filename, "dssi-vst"));

  1903. #else

  1904.             const bool isAmSynth(std::strstr(pData->filename, "amsynth"));

  1905.             const bool isDssiVst(std::strstr(pData->filename, "dssi-vst"));

  1906. #endif

  1907. 

  1908.             // set default options

  1909.             pData->options = 0x0;

  1910. 

  1911.             pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1912. 

  1913.             if (isAmSynth || isDssiVst)

  1914.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  1915. 

  1916.             if (pData->engine->getOptions().forceStereo)

  1917.                 pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1918. 

  1919.             if (fUsesCustomData)

  1920.                 pData->options |= PLUGIN_OPTION_USE_CHUNKS;

  1921. 

  1922.             if (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr)

  1923.             {

  1924.                 pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1925.                 pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  1926.                 pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  1927.                 pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1928. 

  1929.                 if (fDssiDescriptor->run_synth == nullptr)

  1930.                     carla_stderr2("WARNING: Plugin can ONLY use run_multiple_synths!");

  1931.             }

  1932. 

  1933.             // set identifier string

  1934.             CarlaString identifier("DSSI/");

  1935. 

  1936.             if (const char* const shortname = std::strrchr(filename, OS_SEP))

  1937.             {

  1938.                 identifier += shortname+1;

  1939.                 identifier += ",";

  1940.             }

  1941. 

  1942.             identifier += label;

  1943.             pData->identifier = identifier.dup();

  1944. 

  1945.             // load settings

  1946.             pData->options = pData->loadSettings(pData->options, getOptionsAvailable());

  1947. 

  1948.             // ignore settings, we need this anyway

  1949.             if (isAmSynth || isDssiVst)

  1950.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  1951.         }

  1952. 

  1953.         return true;

  1954.     }

  1955. 

  1956.     // -------------------------------------------------------------------

  1957. 

  1958. private:

  1959.     LADSPA_Handle fHandle;

  1960.     LADSPA_Handle fHandle2;

  1961.     const LADSPA_Descriptor* fDescriptor;

  1962.     const DSSI_Descriptor*   fDssiDescriptor;

  1963. 

  1964.     bool fUsesCustomData;

  1965.     const char* fUiFilename;

  1966. 

  1967.     float** fAudioInBuffers;

  1968.     float** fAudioOutBuffers;

  1969.     float*  fParamBuffers;

  1970.     snd_seq_event_t fMidiEvents[kPluginMaxMidiEvents];

  1971. 

  1972.     static LinkedList<const char*> sMultiSynthList;

  1973. 

  1974.     static bool addUniqueMultiSynth(const char* const label)

  1975.     {

  1976.         CARLA_SAFE_ASSERT_RETURN(label != nullptr, true);

  1977. 

  1978.         for (LinkedList<const char*>::Itenerator it = sMultiSynthList.begin(); it.valid(); it.next())

  1979.         {

  1980.             const char*& itLabel(it.getValue());

  1981. 

  1982.             if (std::strcmp(label, itLabel) == 0)

  1983.                 return false;

  1984.         }

  1985. 

  1986.         sMultiSynthList.append(carla_strdup(label));

  1987.         return true;

  1988.     }

  1989. 

  1990.     static void removeUniqueMultiSynth(const char* const label)

  1991.     {

  1992.         CARLA_SAFE_ASSERT_RETURN(label != nullptr,);

  1993. 

  1994.         for (LinkedList<const char*>::Itenerator it = sMultiSynthList.begin(); it.valid(); it.next())

  1995.         {

  1996.             const char*& itLabel(it.getValue());

  1997. 

  1998.             if (std::strcmp(label, itLabel) == 0)

  1999.             {

  2000.                 sMultiSynthList.remove(it);

  2001.                 delete[] itLabel;

  2002.                 return;

  2003.             }

  2004.         }

  2005.     }

  2006. 

  2007.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(DssiPlugin)

  2008. };

  2009. 

  2010. LinkedList<const char*> DssiPlugin::sMultiSynthList;

  2011. 

  2012. CARLA_BACKEND_END_NAMESPACE

  2013. 

  2014. #endif // WANT_DSSI

  2015. 

  2016. // -------------------------------------------------------------------------------------------------------------------

  2017. 

  2018. CARLA_BACKEND_START_NAMESPACE

  2019. 

  2020. CarlaPlugin* CarlaPlugin::newDSSI(const Initializer& init)

  2021. {

  2022.     carla_debug("CarlaPlugin::newDSSI({%p, \"%s\", \"%s\", \"%s\"})", init.engine, init.filename, init.name, init.label);

  2023. 

  2024. #ifdef WANT_DSSI

  2025.     DssiPlugin* const plugin(new DssiPlugin(init.engine, init.id));

  2026. 

  2027.     if (! plugin->init(init.filename, init.name, init.label))

  2028.     {

  2029.         delete plugin;

  2030.         return nullptr;

  2031.     }

  2032. 

  2033.     plugin->reload();

  2034. 

  2035.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && ! plugin->canRunInRack())

  2036.     {

  2037.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo DSSI plugins, sorry!");

  2038.         delete plugin;

  2039.         return nullptr;

  2040.     }

  2041. 

  2042.     return plugin;

  2043. #else

  2044.     init.engine->setLastError("DSSI support not available");

  2045.     return nullptr;

  2046. #endif

  2047. }

  2048. 

  2049. CARLA_BACKEND_END_NAMESPACE

  2050. 

  2051. // -------------------------------------------------------------------------------------------------------------------