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Carla
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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. #include "CarlaDssiUtils.hpp"

  22. #include "CarlaMathUtils.hpp"

  23. 

  24. CARLA_BACKEND_START_NAMESPACE

  25. 

  26. // -----------------------------------------------------

  27. 

  28. class DssiPlugin : public CarlaPlugin

  29. {

  30. public:

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

  32.         : CarlaPlugin(engine, id),

  33.           fHandle(nullptr),

  34.           fHandle2(nullptr),

  35.           fDescriptor(nullptr),

  36.           fDssiDescriptor(nullptr),

  37.           fUsesCustomData(false),

  38.           fUiFilename(nullptr),

  39.           fAudioInBuffers(nullptr),

  40.           fAudioOutBuffers(nullptr),

  41.           fParamBuffers(nullptr),

  42.           fLatencyChanged(false),

  43.           fLatencyIndex(-1),

  44.           leakDetector_DssiPlugin()

  45.     {

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

  47. 

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

  49.     }

  50. 

  51.     ~DssiPlugin() noexcept override

  52.     {

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

  54. 

  55.         // close UI

  56.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  57.         {

  58.             showCustomUI(false);

  59. 

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

  61.         }

  62. 

  63.         pData->singleMutex.lock();

  64.         pData->masterMutex.lock();

  65. 

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

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

  68. 

  69.         if (pData->active)

  70.         {

  71.             deactivate();

  72.             pData->active = false;

  73.         }

  74. 

  75.         if (fDescriptor != nullptr)

  76.         {

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

  78.                 removeUniqueMultiSynth(fDescriptor->Label);

  79. 

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

  81.             {

  82.                 if (fHandle != nullptr)

  83.                 {

  84.                     try {

  85.                         fDescriptor->cleanup(fHandle);

  86.                     } CARLA_SAFE_EXCEPTION("DSSI cleanup");

  87.                 }

  88. 

  89.                 if (fHandle2 != nullptr)

  90.                 {

  91.                     try {

  92.                         fDescriptor->cleanup(fHandle2);

  93.                     } CARLA_SAFE_EXCEPTION("DSSI cleanup #2");

  94.                 }

  95.             }

  96. 

  97.             fHandle  = nullptr;

  98.             fHandle2 = nullptr;

  99.             fDescriptor = nullptr;

  100.             fDssiDescriptor = nullptr;

  101.         }

  102. 

  103.         if (fUiFilename != nullptr)

  104.         {

  105.             delete[] fUiFilename;

  106.             fUiFilename = nullptr;

  107.         }

  108. 

  109.         clearBuffers();

  110.     }

  111. 

  112.     // -------------------------------------------------------------------

  113.     // Information (base)

  114. 

  115.     PluginType getType() const noexcept override

  116.     {

  117.         return PLUGIN_DSSI;

  118.     }

  119. 

  120.     PluginCategory getCategory() const noexcept override

  121.     {

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

  123. 

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

  125.             return PLUGIN_CATEGORY_SYNTH;

  126. 

  127.         return CarlaPlugin::getCategory();

  128.     }

  129. 

  130.     int64_t getUniqueId() const noexcept override

  131.     {

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

  133. 

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

  135.     }

  136. 

  137.     // -------------------------------------------------------------------

  138.     // Information (count)

  139. 

  140.     // nothing

  141. 

  142.     // -------------------------------------------------------------------

  143.     // Information (current data)

  144. 

  145.     std::size_t getChunkData(void** const dataPtr) noexcept override

  146.     {

  147.         CARLA_SAFE_ASSERT_RETURN(fUsesCustomData, 0);

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

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

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

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

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

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

  154. 

  155.         *dataPtr = nullptr;

  156. 

  157.         int ret = 0;

  158.         ulong dataSize = 0;

  159. 

  160.         try {

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

  162.         } CARLA_SAFE_EXCEPTION_RETURN("DssiPlugin::getChunkData", 0);

  163. 

  164.         return (ret != 0) ? dataSize : 0;

  165.     }

  166. 

  167.     // -------------------------------------------------------------------

  168.     // Information (per-plugin data)

  169. 

  170.     uint getOptionsAvailable() const noexcept override

  171.     {

  172. #ifdef __USE_GNU

  173.         const bool isDssiVst(strcasestr(pData->filename, "dssi-vst") != nullptr);

  174. #else

  175.         const bool isDssiVst(std::strstr(pData->filename, "dssi-vst") != nullptr);

  176. #endif

  177. 

  178.         uint options = 0x0;

  179. 

  180.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  181. 

  182.         if (! isDssiVst)

  183.         {

  184.             if (fLatencyIndex == -1)

  185.                 options |= PLUGIN_OPTION_FIXED_BUFFERS;

  186. 

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

  188.             {

  189.                 if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  190.                     options |= PLUGIN_OPTION_FORCE_STEREO;

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

  192.                     options |= PLUGIN_OPTION_FORCE_STEREO;

  193.             }

  194.         }

  195. 

  196.         if (fUsesCustomData)

  197.             options |= PLUGIN_OPTION_USE_CHUNKS;

  198. 

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

  200.         {

  201.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  202.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  203.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  204.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

  205.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  206.         }

  207. 

  208.         return options;

  209.     }

  210. 

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

  212.     {

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

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

  215. 

  216.         return fParamBuffers[parameterId];

  217.     }

  218. 

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

  220.     {

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

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

  223. 

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

  225.     }

  226. 

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

  228.     {

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

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

  231. 

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

  233.     }

  234. 

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

  236.     {

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

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

  239. 

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

  241.     }

  242. 

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

  244.     {

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

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

  247. 

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

  249.     }

  250. 

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

  252.     {

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

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

  255. 

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

  257. 

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

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

  260. 

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

  262.             return;

  263. 

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

  265.     }

  266. 

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

  268.     {

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

  270. 

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

  272. 

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

  274. 

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

  276.             return;

  277. 

  278.         nullStrBuf(strBuf);

  279.     }

  280. 

  281.     // -------------------------------------------------------------------

  282.     // Set data (state)

  283. 

  284.     // nothing

  285. 

  286.     // -------------------------------------------------------------------

  287.     // Set data (internal stuff)

  288. 

  289.     // nothing

  290. 

  291.     // -------------------------------------------------------------------

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

  293. 

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

  295.     {

  296.         CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr,);

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

  298. 

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

  300.         fParamBuffers[parameterId] = fixedValue;

  301. 

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

  303.     }

  304. 

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

  306.     {

  307.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  308.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

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

  311.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

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

  313. 

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

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

  316. 

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

  318.         {

  319.             try {

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

  321.             } catch(...) {}

  322. 

  323.             if (fHandle2 != nullptr)

  324.             {

  325.                 try {

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

  327.                 } catch(...) {}

  328.             }

  329.         }

  330. 

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

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

  333. 

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

  335.         {

  336.             const ScopedSingleProcessLocker spl(this, true);

  337.             reloadPrograms(false);

  338.         }

  339. 

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

  341.     }

  342. 

  343.     void setChunkData(const void* const data, const std::size_t dataSize) override

  344.     {

  345.         CARLA_SAFE_ASSERT_RETURN(fUsesCustomData,);

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

  347.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

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

  349.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  350.         CARLA_SAFE_ASSERT_RETURN(fHandle2 == nullptr,);

  351.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  352.         CARLA_SAFE_ASSERT_RETURN(dataSize > 0,);

  353. 

  354.         {

  355.             const ScopedSingleProcessLocker spl(this, true);

  356. 

  357.             try {

  358.                 fDssiDescriptor->set_custom_data(fHandle, const_cast<void*>(data), static_cast<ulong>(dataSize));

  359.             } CARLA_SAFE_EXCEPTION("DssiPlugin::setChunkData");

  360.         }

  361. 

  362. #ifdef BUILD_BRIDGE

  363.         const bool sendOsc(false);

  364. #else

  365.         const bool sendOsc(pData->engine->isOscControlRegistered());

  366. #endif

  367.         pData->updateParameterValues(this, sendOsc, true, false);

  368.     }

  369. 

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

  371.     {

  372.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

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

  374.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  376. 

  377.         if (index >= 0)

  378.         {

  379.             const uint32_t bank(pData->midiprog.data[index].bank);

  380.             const uint32_t program(pData->midiprog.data[index].program);

  381. 

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

  383. 

  384.             try {

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

  386.             } catch(...) {}

  387. 

  388.             if (fHandle2 != nullptr)

  389.             {

  390.                 try {

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

  392.                 } catch(...) {}

  393.             }

  394.         }

  395. 

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

  397.     }

  398. 

  399.     // -------------------------------------------------------------------

  400.     // Set ui stuff

  401. 

  402.     void showCustomUI(const bool yesNo) override

  403.     {

  404.         if (yesNo)

  405.         {

  406.             pData->osc.data.clear();

  407.             pData->osc.thread.startThread();

  408.         }

  409.         else

  410.         {

  411.             pData->transientTryCounter = 0;

  412. 

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

  414.             {

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

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

  417.                 pData->osc.data.clear();

  418.             }

  419. 

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

  421.         }

  422.     }

  423. 

  424.     void idle() override

  425.     {

  426.         if (fLatencyChanged && fLatencyIndex != -1)

  427.         {

  428.             fLatencyChanged = false;

  429. 

  430.             const int32_t latency(static_cast<int32_t>(fParamBuffers[fLatencyIndex]));

  431. 

  432.             if (latency >= 0)

  433.             {

  434.                 const uint32_t ulatency(static_cast<uint32_t>(latency));

  435. 

  436.                 if (pData->latency != ulatency)

  437.                 {

  438.                     carla_stdout("latency changed to %i", latency);

  439. 

  440.                     const ScopedSingleProcessLocker sspl(this, true);

  441. 

  442.                     pData->latency = ulatency;

  443.                     pData->client->setLatency(ulatency);

  444. #ifndef BUILD_BRIDGE

  445.                     pData->recreateLatencyBuffers();

  446. #endif

  447.                 }

  448.             }

  449.             else

  450.                 carla_safe_assert_int("latency >= 0", __FILE__, __LINE__, latency);

  451.         }

  452. 

  453.         CarlaPlugin::idle();

  454.     }

  455. 

  456.     // -------------------------------------------------------------------

  457.     // Plugin state

  458. 

  459.     void reload() override

  460.     {

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

  462.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  463.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  464.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  466. 

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

  468. 

  469.         // Safely disable plugin for reload

  470.         const ScopedDisabler sd(this);

  471. 

  472.         if (pData->active)

  473.             deactivate();

  474. 

  475.         clearBuffers();

  476. 

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

  478.         const uint32_t portCount(getSafePortCount());

  479. 

  480.         uint32_t aIns, aOuts, mIns, params;

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

  482. 

  483.         bool forcedStereoIn, forcedStereoOut;

  484.         forcedStereoIn = forcedStereoOut = false;

  485. 

  486.         bool needsCtrlIn, needsCtrlOut;

  487.         needsCtrlIn = needsCtrlOut = false;

  488. 

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

  490.         {

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

  492. 

  493.             if (LADSPA_IS_PORT_AUDIO(portType))

  494.             {

  495.                 if (LADSPA_IS_PORT_INPUT(portType))

  496.                     aIns += 1;

  497.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  498.                     aOuts += 1;

  499.             }

  500.             else if (LADSPA_IS_PORT_CONTROL(portType))

  501.                 params += 1;

  502.         }

  503. 

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

  505.         {

  506.             if (fHandle2 == nullptr)

  507.             {

  508.                 try {

  509.                     fHandle2 = fDescriptor->instantiate(fDescriptor, static_cast<ulong>(sampleRate));

  510.                 } CARLA_SAFE_EXCEPTION("DSSI instantiate #2");

  511.             }

  512. 

  513.             if (fHandle2 != nullptr)

  514.             {

  515.                 if (aIns == 1)

  516.                 {

  517.                     aIns = 2;

  518.                     forcedStereoIn = true;

  519.                 }

  520. 

  521.                 if (aOuts == 1)

  522.                 {

  523.                     aOuts = 2;

  524.                     forcedStereoOut = true;

  525.                 }

  526.             }

  527.         }

  528. 

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

  530.         {

  531.             mIns = 1;

  532.             needsCtrlIn = true;

  533.         }

  534. 

  535.         if (aIns > 0)

  536.         {

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

  538.             fAudioInBuffers = new float*[aIns];

  539. 

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

  541.                 fAudioInBuffers[i] = nullptr;

  542.         }

  543. 

  544.         if (aOuts > 0)

  545.         {

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

  547.             fAudioOutBuffers = new float*[aOuts];

  548.             needsCtrlIn = true;

  549. 

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

  551.                 fAudioOutBuffers[i] = nullptr;

  552.         }

  553. 

  554.         if (params > 0)

  555.         {

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

  557. 

  558.             fParamBuffers = new float[params];

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

  560.         }

  561. 

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

  563.         CarlaString portName;

  564. 

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

  566.         {

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

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

  569. 

  570.             if (LADSPA_IS_PORT_AUDIO(portType))

  571.             {

  572.                 portName.clear();

  573. 

  574.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  575.                 {

  576.                     portName  = pData->name;

  577.                     portName += ":";

  578.                 }

  579. 

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

  581.                 {

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

  583.                 }

  584.                 else

  585.                 {

  586.                     if (LADSPA_IS_PORT_INPUT(portType))

  587.                     {

  588.                         if (aIns > 1)

  589.                         {

  590.                             portName += "audio-in_";

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

  592.                         }

  593.                         else

  594.                             portName += "audio-in";

  595.                     }

  596.                     else

  597.                     {

  598.                         if (aOuts > 1)

  599.                         {

  600.                             portName += "audio-out_";

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

  602.                         }

  603.                         else

  604.                             portName += "audio-out";

  605.                     }

  606.                 }

  607. 

  608.                 portName.truncate(portNameSize);

  609. 

  610.                 if (LADSPA_IS_PORT_INPUT(portType))

  611.                 {

  612.                     const uint32_t j = iAudioIn++;

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

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

  615. 

  616.                     if (forcedStereoIn)

  617.                     {

  618.                         portName += "_2";

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

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

  621.                     }

  622.                 }

  623.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  624.                 {

  625.                     const uint32_t j = iAudioOut++;

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

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

  628. 

  629.                     if (forcedStereoOut)

  630.                     {

  631.                         portName += "_2";

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

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

  634.                     }

  635.                 }

  636.                 else

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

  638.             }

  639.             else if (LADSPA_IS_PORT_CONTROL(portType))

  640.             {

  641.                 const uint32_t j = iCtrl++;

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

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

  644. 

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

  646. 

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

  648. 

  649.                 // min value

  650.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  651.                     min = portRangeHints.LowerBound;

  652.                 else

  653.                     min = 0.0f;

  654. 

  655.                 // max value

  656.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  657.                     max = portRangeHints.UpperBound;

  658.                 else

  659.                     max = 1.0f;

  660. 

  661.                 if (min > max)

  662.                 {

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

  664.                     min = max - 0.1f;

  665.                 }

  666.                 else if (carla_compareFloats(min, max))

  667.                 {

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

  669.                     max = min + 0.1f;

  670.                 }

  671. 

  672.                 // default value

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

  674. 

  675.                 if (def < min)

  676.                     def = min;

  677.                 else if (def > max)

  678.                     def = max;

  679. 

  680.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  681.                 {

  682.                     min *= sampleRate;

  683.                     max *= sampleRate;

  684.                     def *= sampleRate;

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

  686.                 }

  687. 

  688.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  689.                 {

  690.                     step = max - min;

  691.                     stepSmall = step;

  692.                     stepLarge = step;

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

  694.                 }

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

  696.                 {

  697.                     step = 1.0f;

  698.                     stepSmall = 1.0f;

  699.                     stepLarge = 10.0f;

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

  701.                 }

  702.                 else

  703.                 {

  704.                     const float range = max - min;

  705.                     step = range/100.0f;

  706.                     stepSmall = range/1000.0f;

  707.                     stepLarge = range/10.0f;

  708.                 }

  709. 

  710.                 if (LADSPA_IS_PORT_INPUT(portType))

  711.                 {

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

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

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

  715.                     needsCtrlIn = true;

  716. 

  717.                     // MIDI CC value

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

  719.                     {

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

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

  722.                         {

  723.                             int16_t cc = DSSI_CC_NUMBER(controller);

  724.                             if (! MIDI_IS_CONTROL_BANK_SELECT(cc))

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

  726.                         }

  727.                     }

  728.                 }

  729.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  730.                 {

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

  732. 

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

  734.                     {

  735.                         min = 0.0f;

  736.                         max = sampleRate;

  737.                         def = 0.0f;

  738.                         step = 1.0f;

  739.                         stepSmall = 1.0f;

  740.                         stepLarge = 1.0f;

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

  742.                         CARLA_SAFE_ASSERT(fLatencyIndex == -1);

  743.                         fLatencyIndex = static_cast<int32_t>(j);

  744.                     }

  745.                     else

  746.                     {

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

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

  749.                         needsCtrlOut = true;

  750.                     }

  751.                 }

  752.                 else

  753.                 {

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

  755.                 }

  756. 

  757.                 // extra parameter hints

  758.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

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

  760. 

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

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

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

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

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

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

  767. 

  768.                 // Start parameters in their default values

  769.                 fParamBuffers[j] = def;

  770. 

  771.                 try {

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

  773.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port parameter");

  774. 

  775.                 if (fHandle2 != nullptr)

  776.                 {

  777.                     try {

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

  779.                     } CARLA_SAFE_EXCEPTION("DSSI connect_port parameter #2");

  780.                 }

  781.             }

  782.             else

  783.             {

  784.                 // Not Audio or Control

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

  786. 

  787.                 try {

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

  789.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port null");

  790. 

  791.                 if (fHandle2 != nullptr)

  792.                 {

  793.                     try {

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

  795.                     } CARLA_SAFE_EXCEPTION("DSSI connect_port null #2");

  796.                 }

  797.             }

  798.         }

  799. 

  800.         if (needsCtrlIn)

  801.         {

  802.             portName.clear();

  803. 

  804.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  805.             {

  806.                 portName  = pData->name;

  807.                 portName += ":";

  808.             }

  809. 

  810.             portName += "events-in";

  811.             portName.truncate(portNameSize);

  812. 

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

  814.         }

  815. 

  816.         if (needsCtrlOut)

  817.         {

  818.             portName.clear();

  819. 

  820.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  821.             {

  822.                 portName  = pData->name;

  823.                 portName += ":";

  824.             }

  825. 

  826.             portName += "events-out";

  827.             portName.truncate(portNameSize);

  828. 

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

  830.         }

  831. 

  832.         if (forcedStereoIn || forcedStereoOut)

  833.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  834.         else

  835.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  836. 

  837.         // plugin hints

  838.         pData->hints = 0x0;

  839. 

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

  841.             pData->hints |= PLUGIN_IS_RTSAFE;

  842. 

  843.         if (fUiFilename != nullptr)

  844.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  845. 

  846. #ifndef BUILD_BRIDGE

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

  848.             pData->hints |= PLUGIN_CAN_DRYWET;

  849. 

  850.         if (aOuts > 0)

  851.             pData->hints |= PLUGIN_CAN_VOLUME;

  852. 

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

  854.             pData->hints |= PLUGIN_CAN_BALANCE;

  855. #endif

  856. 

  857.         // extra plugin hints

  858.         pData->extraHints = 0x0;

  859. 

  860.         if (mIns > 0)

  861.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  862. 

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

  864.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  865. 

  866.         // check latency

  867.         if (fLatencyIndex >= 0)

  868.         {

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

  870. 

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

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

  873. 

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

  875.             {

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

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

  878. 

  879.                 try {

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

  881.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port latency input");

  882.             }

  883. 

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

  885.             {

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

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

  888. 

  889.                 try {

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

  891.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port latency output");

  892.             }

  893. 

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

  895.             {

  896.                 try {

  897.                     fDescriptor->activate(fHandle);

  898.                 } CARLA_SAFE_EXCEPTION("DSSI latency activate");

  899.             }

  900. 

  901.             try {

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

  903.             } CARLA_SAFE_EXCEPTION("DSSI latency run");

  904. 

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

  906.             {

  907.                 try {

  908.                     fDescriptor->deactivate(fHandle);

  909.                 } CARLA_SAFE_EXCEPTION("DSSI latency deactivate");

  910.             }

  911. 

  912.             const int32_t latency(static_cast<int32_t>(fParamBuffers[fLatencyIndex]));

  913. 

  914.             if (latency >= 0)

  915.             {

  916.                 const uint32_t ulatency(static_cast<uint32_t>(latency));

  917. 

  918.                 if (pData->latency != ulatency)

  919.                 {

  920.                     carla_stdout("latency = %i", latency);

  921. 

  922.                     pData->latency = ulatency;

  923.                     pData->client->setLatency(ulatency);

  924. #ifndef BUILD_BRIDGE

  925.                     pData->recreateLatencyBuffers();

  926. #endif

  927.                 }

  928.             }

  929.             else

  930.                 carla_safe_assert_int("latency >= 0", __FILE__, __LINE__, latency);

  931. 

  932.             fLatencyChanged = false;

  933.         }

  934. 

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

  936.         reloadPrograms(true);

  937. 

  938.         if (pData->active)

  939.             activate();

  940. 

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

  942.     }

  943. 

  944.     void reloadPrograms(const bool doInit) override

  945.     {

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

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

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

  949. 

  950.         // Delete old programs

  951.         pData->midiprog.clear();

  952. 

  953.         // Query new programs

  954.         uint32_t newCount = 0;

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

  956.         {

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

  958.                 ++newCount;

  959.         }

  960. 

  961.         if (newCount > 0)

  962.         {

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

  964. 

  965.             // Update data

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

  967.             {

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

  969.                 CARLA_SAFE_ASSERT_CONTINUE(pdesc != nullptr);

  970.                 CARLA_SAFE_ASSERT(pdesc->Name != nullptr);

  971. 

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

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

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

  975.             }

  976.         }

  977. 

  978. #ifndef BUILD_BRIDGE

  979.         // Update OSC Names

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

  981.         {

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

  983. 

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

  985.                 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);

  986.         }

  987. #endif

  988. 

  989.         if (doInit)

  990.         {

  991.             if (newCount > 0)

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

  993.         }

  994.         else

  995.         {

  996.             // Check if current program is invalid

  997.             bool programChanged = false;

  998. 

  999.             if (newCount == oldCount+1)

  1000.             {

  1001.                 // one midi program added, probably created by user

  1002.                 pData->midiprog.current = static_cast<int32_t>(oldCount);

  1003.                 programChanged = true;

  1004.             }

  1005.             else if (current < 0 && newCount > 0)

  1006.             {

  1007.                 // programs exist now, but not before

  1008.                 pData->midiprog.current = 0;

  1009.                 programChanged = true;

  1010.             }

  1011.             else if (current >= 0 && newCount == 0)

  1012.             {

  1013.                 // programs existed before, but not anymore

  1014.                 pData->midiprog.current = -1;

  1015.                 programChanged = true;

  1016.             }

  1017.             else if (current >= static_cast<int32_t>(newCount))

  1018.             {

  1019.                 // current midi program > count

  1020.                 pData->midiprog.current = 0;

  1021.                 programChanged = true;

  1022.             }

  1023.             else

  1024.             {

  1025.                 // no change

  1026.                 pData->midiprog.current = current;

  1027.             }

  1028. 

  1029.             if (programChanged)

  1030.                 setMidiProgram(pData->midiprog.current, true, true, true);

  1031. 

  1032.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1033.         }

  1034.     }

  1035. 

  1036.     // -------------------------------------------------------------------

  1037.     // Plugin processing

  1038. 

  1039.     void activate() noexcept override

  1040.     {

  1041.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1042.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1043. 

  1044.         if (fDescriptor->activate != nullptr)

  1045.         {

  1046.             try {

  1047.                 fDescriptor->activate(fHandle);

  1048.             } CARLA_SAFE_EXCEPTION("DSSI activate");

  1049. 

  1050.             if (fHandle2 != nullptr)

  1051.             {

  1052.                 try {

  1053.                     fDescriptor->activate(fHandle2);

  1054.                 } CARLA_SAFE_EXCEPTION("DSSI activate #2");

  1055.             }

  1056.         }

  1057.     }

  1058. 

  1059.     void deactivate() noexcept override

  1060.     {

  1061.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1062.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1063. 

  1064.         if (fDescriptor->deactivate != nullptr)

  1065.         {

  1066.             try {

  1067.                 fDescriptor->deactivate(fHandle);

  1068.             } CARLA_SAFE_EXCEPTION("DSSI deactivate");

  1069. 

  1070.             if (fHandle2 != nullptr)

  1071.             {

  1072.                 try {

  1073.                     fDescriptor->deactivate(fHandle2);

  1074.                 } CARLA_SAFE_EXCEPTION("DSSI deactivate #2");

  1075.             }

  1076.         }

  1077.     }

  1078. 

  1079.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames) override

  1080.     {

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

  1082.         // Check if active

  1083. 

  1084.         if (! pData->active)

  1085.         {

  1086.             // disable any output sound

  1087.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1088.                 FloatVectorOperations::clear(outBuffer[i], static_cast<int>(frames));

  1089.             return;

  1090.         }

  1091. 

  1092.         ulong midiEventCount = 0;

  1093. 

  1094.         // --------------------------------------------------------------------------------------------------------

  1095.         // Check if needs reset

  1096. 

  1097.         if (pData->needsReset)

  1098.         {

  1099.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1100.             {

  1101.                 midiEventCount = MAX_MIDI_CHANNELS*2;

  1102.                 carla_zeroStruct<snd_seq_event_t>(fMidiEvents, midiEventCount);

  1103. 

  1104.                 for (uchar i=0, k=MAX_MIDI_CHANNELS; i < MAX_MIDI_CHANNELS; ++i)

  1105.                 {

  1106.                     fMidiEvents[i].type = SND_SEQ_EVENT_CONTROLLER;

  1107.                     fMidiEvents[i].data.control.channel = i;

  1108.                     fMidiEvents[i].data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1109. 

  1110.                     fMidiEvents[k+i].type = SND_SEQ_EVENT_CONTROLLER;

  1111.                     fMidiEvents[k+i].data.control.channel = i;

  1112.                     fMidiEvents[k+i].data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1113.                 }

  1114.             }

  1115.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1116.             {

  1117.                 midiEventCount = MAX_MIDI_NOTE;

  1118.                 carla_zeroStruct<snd_seq_event_t>(fMidiEvents, midiEventCount);

  1119. 

  1120.                 for (uchar i=0; i < MAX_MIDI_NOTE; ++i)

  1121.                 {

  1122.                     fMidiEvents[i].type = SND_SEQ_EVENT_NOTEOFF;

  1123.                     fMidiEvents[i].data.note.channel = static_cast<uchar>(pData->ctrlChannel);

  1124.                     fMidiEvents[i].data.note.note    = i;

  1125.                 }

  1126.             }

  1127. 

  1128. #ifndef BUILD_BRIDGE

  1129.             if (pData->latency > 0)

  1130.             {

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

  1132.                     FloatVectorOperations::clear(pData->latencyBuffers[i], static_cast<int>(pData->latency));

  1133.             }

  1134. #endif

  1135. 

  1136.             pData->needsReset = false;

  1137.         }

  1138. 

  1139.         // --------------------------------------------------------------------------------------------------------

  1140.         // Event Input and Processing

  1141. 

  1142.         if (pData->event.portIn != nullptr)

  1143.         {

  1144.             // ----------------------------------------------------------------------------------------------------

  1145.             // MIDI Input (External)

  1146. 

  1147.             if (pData->extNotes.mutex.tryLock())

  1148.             {

  1149.                 ExternalMidiNote note = { 0, 0, 0 };

  1150. 

  1151.                 for (; midiEventCount < kPluginMaxMidiEvents && ! pData->extNotes.data.isEmpty();)

  1152.                 {

  1153.                     note = pData->extNotes.data.getFirst(note, true);

  1154. 

  1155.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1156. 

  1157.                     snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1158.                     carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1159. 

  1160.                     midiEvent.type               = (note.velo > 0) ? SND_SEQ_EVENT_NOTEON : SND_SEQ_EVENT_NOTEOFF;

  1161.                     midiEvent.data.note.channel  = static_cast<uchar>(note.channel);

  1162.                     midiEvent.data.note.note     = note.note;

  1163.                     midiEvent.data.note.velocity = note.velo;

  1164.                 }

  1165. 

  1166.                 pData->extNotes.mutex.unlock();

  1167. 

  1168.             } // End of MIDI Input (External)

  1169. 

  1170.             // ----------------------------------------------------------------------------------------------------

  1171.             // Event Input (System)

  1172. 

  1173. #ifndef BUILD_BRIDGE

  1174.             bool       allNotesOffSent  = false;

  1175. #endif

  1176.             const bool isSampleAccurate = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1177. 

  1178.             uint32_t numEvents  = pData->event.portIn->getEventCount();

  1179.             uint32_t startTime  = 0;

  1180.             uint32_t timeOffset = 0;

  1181.             uint32_t nextBankId;

  1182. 

  1183.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1184.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1185.             else

  1186.                 nextBankId = 0;

  1187. 

  1188.             for (uint32_t i=0; i < numEvents; ++i)

  1189.             {

  1190.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1191. 

  1192.                 if (event.time >= frames)

  1193.                     continue;

  1194. 

  1195.                 CARLA_ASSERT_INT2(event.time >= timeOffset, event.time, timeOffset);

  1196. 

  1197.                 if (isSampleAccurate && event.time > timeOffset)

  1198.                 {

  1199.                     if (processSingle(inBuffer, outBuffer, event.time - timeOffset, timeOffset, midiEventCount))

  1200.                     {

  1201.                         startTime  = 0;

  1202.                         timeOffset = event.time;

  1203.                         midiEventCount = 0;

  1204. 

  1205.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1206.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1207.                         else

  1208.                             nextBankId = 0;

  1209.                     }

  1210.                     else

  1211.                         startTime += timeOffset;

  1212.                 }

  1213. 

  1214.                 switch (event.type)

  1215.                 {

  1216.                 case kEngineEventTypeNull:

  1217.                     break;

  1218. 

  1219.                 case kEngineEventTypeControl: {

  1220.                     const EngineControlEvent& ctrlEvent(event.ctrl);

  1221. 

  1222.                     switch (ctrlEvent.type)

  1223.                     {

  1224.                     case kEngineControlEventTypeNull:

  1225.                         break;

  1226. 

  1227.                     case kEngineControlEventTypeParameter: {

  1228. #ifndef BUILD_BRIDGE

  1229.                         // Control backend stuff

  1230.                         if (event.channel == pData->ctrlChannel)

  1231.                         {

  1232.                             float value;

  1233. 

  1234.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1235.                             {

  1236.                                 value = ctrlEvent.value;

  1237.                                 setDryWet(value, false, false);

  1238.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1239.                                 break;

  1240.                             }

  1241. 

  1242.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1243.                             {

  1244.                                 value = ctrlEvent.value*127.0f/100.0f;

  1245.                                 setVolume(value, false, false);

  1246.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1247.                                 break;

  1248.                             }

  1249. 

  1250.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1251.                             {

  1252.                                 float left, right;

  1253.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1254. 

  1255.                                 if (value < 0.0f)

  1256.                                 {

  1257.                                     left  = -1.0f;

  1258.                                     right = (value*2.0f)+1.0f;

  1259.                                 }

  1260.                                 else if (value > 0.0f)

  1261.                                 {

  1262.                                     left  = (value*2.0f)-1.0f;

  1263.                                     right = 1.0f;

  1264.                                 }

  1265.                                 else

  1266.                                 {

  1267.                                     left  = -1.0f;

  1268.                                     right = 1.0f;

  1269.                                 }

  1270. 

  1271.                                 setBalanceLeft(left, false, false);

  1272.                                 setBalanceRight(right, false, false);

  1273.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1274.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1275.                                 break;

  1276.                             }

  1277.                         }

  1278. #endif

  1279.                         // Control plugin parameters

  1280.                         uint32_t k;

  1281.                         for (k=0; k < pData->param.count; ++k)

  1282.                         {

  1283.                             if (pData->param.data[k].midiChannel != event.channel)

  1284.                                 continue;

  1285.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1286.                                 continue;

  1287.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1288.                                 continue;

  1289.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1290.                                 continue;

  1291. 

  1292.                             float value;

  1293. 

  1294.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1295.                             {

  1296.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1297.                             }

  1298.                             else

  1299.                             {

  1300.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1301. 

  1302.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1303.                                     value = std::rint(value);

  1304.                             }

  1305. 

  1306.                             setParameterValue(k, value, false, false, false);

  1307.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1308.                             break;

  1309.                         }

  1310. 

  1311.                         // check if event is already handled

  1312.                         if (k != pData->param.count)

  1313.                             break;

  1314. 

  1315.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param <= 0x5F)

  1316.                         {

  1317.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1318.                                 continue;

  1319. 

  1320.                             snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1321.                             carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1322. 

  1323.                             midiEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1324. 

  1325.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1326.                             midiEvent.data.control.channel = event.channel;

  1327.                             midiEvent.data.control.param   = ctrlEvent.param;

  1328.                             midiEvent.data.control.value   = int8_t(ctrlEvent.value*127.0f);

  1329.                         }

  1330.                         break;

  1331.                     } // case kEngineControlEventTypeParameter

  1332. 

  1333.                     case kEngineControlEventTypeMidiBank:

  1334.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1335.                             nextBankId = ctrlEvent.param;

  1336.                         break;

  1337. 

  1338.                     case kEngineControlEventTypeMidiProgram:

  1339.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1340.                         {

  1341.                             const uint32_t nextProgramId = ctrlEvent.param;

  1342. 

  1343.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1344.                             {

  1345.                                 if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1346.                                 {

  1347.                                     const int32_t index(static_cast<int32_t>(k));

  1348.                                     setMidiProgram(index, false, false, false);

  1349.                                     pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, index, 0, 0.0f);

  1350.                                     break;

  1351.                                 }

  1352.                             }

  1353.                         }

  1354.                         break;

  1355. 

  1356.                     case kEngineControlEventTypeAllSoundOff:

  1357.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1358.                         {

  1359.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1360.                                 continue;

  1361. 

  1362.                             snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1363.                             carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1364. 

  1365.                             midiEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1366. 

  1367.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1368.                             midiEvent.data.control.channel = event.channel;

  1369.                             midiEvent.data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1370.                         }

  1371.                         break;

  1372. 

  1373.                     case kEngineControlEventTypeAllNotesOff:

  1374.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1375.                         {

  1376. #ifndef BUILD_BRIDGE

  1377.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1378.                             {

  1379.                                 allNotesOffSent = true;

  1380.                                 sendMidiAllNotesOffToCallback();

  1381.                             }

  1382. #endif

  1383. 

  1384.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1385.                                 continue;

  1386. 

  1387.                             snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1388.                             carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1389. 

  1390.                             midiEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1391. 

  1392.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1393.                             midiEvent.data.control.channel = event.channel;

  1394.                             midiEvent.data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1395. 

  1396.                             midiEventCount += 1;

  1397.                         }

  1398.                         break;

  1399.                     } // switch (ctrlEvent.type)

  1400.                     break;

  1401.                 } // case kEngineEventTypeControl

  1402. 

  1403.                 case kEngineEventTypeMidi: {

  1404.                     if (midiEventCount >= kPluginMaxMidiEvents)

  1405.                         continue;

  1406. 

  1407.                     const EngineMidiEvent& engineEvent(event.midi);

  1408. 

  1409.                     uint8_t status  = uint8_t(MIDI_GET_STATUS_FROM_DATA(engineEvent.data));

  1410.                     uint8_t channel = event.channel;

  1411. 

  1412.                     // Fix bad note-off (per DSSI spec)

  1413.                     if (MIDI_IS_STATUS_NOTE_ON(status) && engineEvent.data[2] == 0)

  1414.                         status = MIDI_STATUS_NOTE_OFF;

  1415. 

  1416.                     snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount]);

  1417.                     carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1418. 

  1419.                     midiEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1420. 

  1421.                     switch (status)

  1422.                     {

  1423.                     case MIDI_STATUS_NOTE_OFF: {

  1424.                         const uint8_t note = engineEvent.data[1];

  1425. 

  1426.                         midiEvent.type = SND_SEQ_EVENT_NOTEOFF;

  1427.                         midiEvent.data.note.channel = channel;

  1428.                         midiEvent.data.note.note    = note;

  1429. 

  1430.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0f);

  1431.                         break;

  1432.                     }

  1433. 

  1434.                     case MIDI_STATUS_NOTE_ON: {

  1435.                         const uint8_t note = engineEvent.data[1];

  1436.                         const uint8_t velo = engineEvent.data[2];

  1437. 

  1438.                         midiEvent.type = SND_SEQ_EVENT_NOTEON;

  1439.                         midiEvent.data.note.channel  = channel;

  1440.                         midiEvent.data.note.note     = note;

  1441.                         midiEvent.data.note.velocity = velo;

  1442. 

  1443.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1444.                         break;

  1445.                     }

  1446. 

  1447.                     case MIDI_STATUS_POLYPHONIC_AFTERTOUCH:

  1448.                         if (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH)

  1449.                         {

  1450.                             const uint8_t note     = engineEvent.data[1];

  1451.                             const uint8_t pressure = engineEvent.data[2];

  1452. 

  1453.                             midiEvent.type = SND_SEQ_EVENT_KEYPRESS;

  1454.                             midiEvent.data.note.channel  = channel;

  1455.                             midiEvent.data.note.note     = note;

  1456.                             midiEvent.data.note.velocity = pressure;

  1457.                         }

  1458.                         break;

  1459. 

  1460.                     case MIDI_STATUS_CONTROL_CHANGE:

  1461.                         if (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1462.                         {

  1463.                             const uint8_t control = engineEvent.data[1];

  1464.                             const uint8_t value   = engineEvent.data[2];

  1465. 

  1466.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1467.                             midiEvent.data.control.channel = channel;

  1468.                             midiEvent.data.control.param   = control;

  1469.                             midiEvent.data.control.value   = value;

  1470.                         }

  1471.                         break;

  1472. 

  1473.                     case MIDI_STATUS_CHANNEL_PRESSURE:

  1474.                         if (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE)

  1475.                         {

  1476.                             const uint8_t pressure = engineEvent.data[1];

  1477. 

  1478.                             midiEvent.type = SND_SEQ_EVENT_CHANPRESS;

  1479.                             midiEvent.data.control.channel = channel;

  1480.                             midiEvent.data.control.value   = pressure;

  1481.                         }

  1482.                         break;

  1483. 

  1484.                     case MIDI_STATUS_PITCH_WHEEL_CONTROL:

  1485.                         if (pData->options & PLUGIN_OPTION_SEND_PITCHBEND)

  1486.                         {

  1487.                             const uint8_t lsb = engineEvent.data[1];

  1488.                             const uint8_t msb = engineEvent.data[2];

  1489. 

  1490.                             midiEvent.type = SND_SEQ_EVENT_PITCHBEND;

  1491.                             midiEvent.data.control.channel = channel;

  1492.                             midiEvent.data.control.value   = ((msb << 7) | lsb) - 8192;

  1493.                         }

  1494.                         break;

  1495. 

  1496.                     default:

  1497.                         continue;

  1498.                         break;

  1499.                     } // switch (status)

  1500. 

  1501.                     midiEventCount += 1;

  1502.                     break;

  1503.                 } // case kEngineEventTypeMidi

  1504.                 } // switch (event.type)

  1505.             }

  1506. 

  1507.             pData->postRtEvents.trySplice();

  1508. 

  1509.             if (frames > timeOffset)

  1510.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset, midiEventCount);

  1511. 

  1512.         } // End of Event Input and Processing

  1513. 

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

  1515.         // Plugin processing (no events)

  1516. 

  1517.         else

  1518.         {

  1519.             processSingle(inBuffer, outBuffer, frames, 0, midiEventCount);

  1520. 

  1521.         } // End of Plugin processing (no events)

  1522. 

  1523. #ifndef BUILD_BRIDGE

  1524.         // --------------------------------------------------------------------------------------------------------

  1525.         // Latency, save values for next callback

  1526. 

  1527.         if (fLatencyIndex != -1)

  1528.         {

  1529.             if (pData->latency != static_cast<uint32_t>(fParamBuffers[fLatencyIndex]))

  1530.             {

  1531.                 fLatencyChanged = true;

  1532.             }

  1533.             else if (pData->latency > 0)

  1534.             {

  1535.                 if (pData->latency <= frames)

  1536.                 {

  1537.                     for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1538.                         FloatVectorOperations::copy(pData->latencyBuffers[i], inBuffer[i]+(frames-pData->latency), static_cast<int>(pData->latency));

  1539.                 }

  1540.                 else

  1541.                 {

  1542.                     for (uint32_t i=0, j, k; i < pData->audioIn.count; ++i)

  1543.                     {

  1544.                         for (k=0; k < pData->latency-frames; ++k)

  1545.                             pData->latencyBuffers[i][k] = pData->latencyBuffers[i][k+frames];

  1546.                         for (j=0; k < pData->latency; ++j, ++k)

  1547.                             pData->latencyBuffers[i][k] = inBuffer[i][j];

  1548.                     }

  1549.                 }

  1550.             }

  1551.         }

  1552. 

  1553.         // --------------------------------------------------------------------------------------------------------

  1554.         // Control Output

  1555. 

  1556.         if (pData->event.portOut != nullptr)

  1557.         {

  1558.             uint8_t  channel;

  1559.             uint16_t param;

  1560.             float    value;

  1561. 

  1562.             for (uint32_t k=0; k < pData->param.count; ++k)

  1563.             {

  1564.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1565.                     continue;

  1566. 

  1567.                 pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1568. 

  1569.                 if (pData->param.data[k].midiCC > 0)

  1570.                 {

  1571.                     channel = pData->param.data[k].midiChannel;

  1572.                     param   = static_cast<uint16_t>(pData->param.data[k].midiCC);

  1573.                     value   = pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]);

  1574.                     pData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value);

  1575.                 }

  1576.             }

  1577.         } // End of Control Output

  1578. #endif

  1579.     }

  1580. 

  1581.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset, const ulong midiEventCount)

  1582.     {

  1583.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1584. 

  1585.         if (pData->audioIn.count > 0)

  1586.         {

  1587.             CARLA_SAFE_ASSERT_RETURN(inBuffer != nullptr, false);

  1588.         }

  1589.         if (pData->audioOut.count > 0)

  1590.         {

  1591.             CARLA_SAFE_ASSERT_RETURN(outBuffer != nullptr, false);

  1592.         }

  1593. 

  1594.         // --------------------------------------------------------------------------------------------------------

  1595.         // Try lock, silence otherwise

  1596. 

  1597.         if (pData->engine->isOffline())

  1598.         {

  1599.             pData->singleMutex.lock();

  1600.         }

  1601.         else if (! pData->singleMutex.tryLock())

  1602.         {

  1603.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1604.             {

  1605.                 for (uint32_t k=0; k < frames; ++k)

  1606.                     outBuffer[i][k+timeOffset] = 0.0f;

  1607.             }

  1608. 

  1609.             return false;

  1610.         }

  1611. 

  1612.         // --------------------------------------------------------------------------------------------------------

  1613.         // Reset audio buffers

  1614. 

  1615.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1616.             FloatVectorOperations::copy(fAudioInBuffers[i], inBuffer[i]+timeOffset, static_cast<int>(frames));

  1617. 

  1618.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1619.             FloatVectorOperations::clear(fAudioOutBuffers[i], static_cast<int>(frames));

  1620. 

  1621.         // --------------------------------------------------------------------------------------------------------

  1622.         // Run plugin

  1623. 

  1624.         // TODO - try catch

  1625. 

  1626.         if (fDssiDescriptor->run_synth != nullptr)

  1627.         {

  1628.             fDssiDescriptor->run_synth(fHandle, frames, fMidiEvents, midiEventCount);

  1629. 

  1630.             if (fHandle2 != nullptr)

  1631.                 fDssiDescriptor->run_synth(fHandle2, frames, fMidiEvents, midiEventCount);

  1632.         }

  1633.         else if (fDssiDescriptor->run_multiple_synths != nullptr)

  1634.         {

  1635.             ulong instances = (fHandle2 != nullptr) ? 2 : 1;

  1636.             LADSPA_Handle handlePtr[2] = { fHandle, fHandle2 };

  1637.             snd_seq_event_t* midiEventsPtr[2] = { fMidiEvents, fMidiEvents };

  1638.             ulong midiEventCountPtr[2] = { midiEventCount, midiEventCount };

  1639.             fDssiDescriptor->run_multiple_synths(instances, handlePtr, frames, midiEventsPtr, midiEventCountPtr);

  1640.         }

  1641.         else

  1642.         {

  1643.             fDescriptor->run(fHandle, frames);

  1644. 

  1645.             if (fHandle2 != nullptr)

  1646.                 fDescriptor->run(fHandle2, frames);

  1647.         }

  1648. 

  1649. #ifndef BUILD_BRIDGE

  1650.         // --------------------------------------------------------------------------------------------------------

  1651.         // Post-processing (dry/wet, volume and balance)

  1652. 

  1653.         {

  1654.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && ! carla_compareFloats(pData->postProc.dryWet, 1.0f);

  1655.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_compareFloats(pData->postProc.balanceLeft, -1.0f) && carla_compareFloats(pData->postProc.balanceRight, 1.0f));

  1656.             const bool isMono    = (pData->audioIn.count == 1);

  1657. 

  1658.             bool isPair;

  1659.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1660. 

  1661.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1662.             {

  1663.                 // Dry/Wet

  1664.                 if (doDryWet)

  1665.                 {

  1666.                     for (uint32_t k=0; k < frames; ++k)

  1667.                     {

  1668.                         if (k < pData->latency)

  1669.                             bufValue = pData->latencyBuffers[isMono ? 0 : i][k];

  1670.                         else if (pData->latency < frames)

  1671.                             bufValue = fAudioInBuffers[isMono ? 0 : i][k-pData->latency];

  1672.                         else

  1673.                             bufValue = fAudioInBuffers[isMono ? 0 : i][k];

  1674. 

  1675.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1676.                     }

  1677.                 }

  1678. 

  1679.                 // Balance

  1680.                 if (doBalance)

  1681.                 {

  1682.                     isPair = (i % 2 == 0);

  1683. 

  1684.                     if (isPair)

  1685.                     {

  1686.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1687.                         FloatVectorOperations::copy(oldBufLeft, fAudioOutBuffers[i], static_cast<int>(frames));

  1688.                     }

  1689. 

  1690.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1691.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1692. 

  1693.                     for (uint32_t k=0; k < frames; ++k)

  1694.                     {

  1695.                         if (isPair)

  1696.                         {

  1697.                             // left

  1698.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1699.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1700.                         }

  1701.                         else

  1702.                         {

  1703.                             // right

  1704.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1705.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1706.                         }

  1707.                     }

  1708.                 }

  1709. 

  1710.                 // Volume (and buffer copy)

  1711.                 {

  1712.                     for (uint32_t k=0; k < frames; ++k)

  1713.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1714.                 }

  1715.             }

  1716. 

  1717.         } // End of Post-processing

  1718. 

  1719. #else // BUILD_BRIDGE

  1720.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1721.         {

  1722.             for (uint32_t k=0; k < frames; ++k)

  1723.                 outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1724.         }

  1725. #endif

  1726. 

  1727.         // --------------------------------------------------------------------------------------------------------

  1728. 

  1729.         pData->singleMutex.unlock();

  1730.         return true;

  1731.     }

  1732. 

  1733.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1734.     {

  1735.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1736.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1737. 

  1738.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1739.         {

  1740.             if (fAudioInBuffers[i] != nullptr)

  1741.                 delete[] fAudioInBuffers[i];

  1742.             fAudioInBuffers[i] = new float[newBufferSize];

  1743.         }

  1744. 

  1745.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1746.         {

  1747.             if (fAudioOutBuffers[i] != nullptr)

  1748.                 delete[] fAudioOutBuffers[i];

  1749.             fAudioOutBuffers[i] = new float[newBufferSize];

  1750.         }

  1751. 

  1752.         if (fHandle2 == nullptr)

  1753.         {

  1754.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1755.             {

  1756.                 CARLA_ASSERT(fAudioInBuffers[i] != nullptr);

  1757. 

  1758.                 try {

  1759.                     fDescriptor->connect_port(fHandle, pData->audioIn.ports[i].rindex, fAudioInBuffers[i]);

  1760.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio input");

  1761.             }

  1762. 

  1763.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1764.             {

  1765.                 CARLA_ASSERT(fAudioOutBuffers[i] != nullptr);

  1766. 

  1767.                 try {

  1768.                     fDescriptor->connect_port(fHandle, pData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  1769.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio output");

  1770.             }

  1771.         }

  1772.         else

  1773.         {

  1774.             if (pData->audioIn.count > 0)

  1775.             {

  1776.                 CARLA_ASSERT(pData->audioIn.count == 2);

  1777.                 CARLA_ASSERT(fAudioInBuffers[0] != nullptr);

  1778.                 CARLA_ASSERT(fAudioInBuffers[1] != nullptr);

  1779. 

  1780.                 try {

  1781.                     fDescriptor->connect_port(fHandle, pData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  1782.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio input #1");

  1783. 

  1784.                 try {

  1785.                     fDescriptor->connect_port(fHandle2, pData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  1786.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio input #2");

  1787.             }

  1788. 

  1789.             if (pData->audioOut.count > 0)

  1790.             {

  1791.                 CARLA_ASSERT(pData->audioOut.count == 2);

  1792.                 CARLA_ASSERT(fAudioOutBuffers[0] != nullptr);

  1793.                 CARLA_ASSERT(fAudioOutBuffers[1] != nullptr);

  1794. 

  1795.                 try {

  1796.                     fDescriptor->connect_port(fHandle, pData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  1797.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio output #1");

  1798. 

  1799.                 try {

  1800.                     fDescriptor->connect_port(fHandle2, pData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  1801.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio output #2");

  1802.             }

  1803.         }

  1804. 

  1805.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - end", newBufferSize);

  1806.     }

  1807. 

  1808.     void sampleRateChanged(const double newSampleRate) override

  1809.     {

  1810.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  1811.         carla_debug("DssiPlugin::sampleRateChanged(%g) - start", newSampleRate);

  1812. 

  1813.         // TODO

  1814.         (void)newSampleRate;

  1815. 

  1816.         carla_debug("DssiPlugin::sampleRateChanged(%g) - end", newSampleRate);

  1817.     }

  1818. 

  1819.     // -------------------------------------------------------------------

  1820.     // Plugin buffers

  1821. 

  1822.     void clearBuffers() noexcept override

  1823.     {

  1824.         carla_debug("DssiPlugin::clearBuffers() - start");

  1825. 

  1826.         if (fAudioInBuffers != nullptr)

  1827.         {

  1828.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1829.             {

  1830.                 if (fAudioInBuffers[i] != nullptr)

  1831.                 {

  1832.                     delete[] fAudioInBuffers[i];

  1833.                     fAudioInBuffers[i] = nullptr;

  1834.                 }

  1835.             }

  1836. 

  1837.             delete[] fAudioInBuffers;

  1838.             fAudioInBuffers = nullptr;

  1839.         }

  1840. 

  1841.         if (fAudioOutBuffers != nullptr)

  1842.         {

  1843.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1844.             {

  1845.                 if (fAudioOutBuffers[i] != nullptr)

  1846.                 {

  1847.                     delete[] fAudioOutBuffers[i];

  1848.                     fAudioOutBuffers[i] = nullptr;

  1849.                 }

  1850.             }

  1851. 

  1852.             delete[] fAudioOutBuffers;

  1853.             fAudioOutBuffers = nullptr;

  1854.         }

  1855. 

  1856.         if (fParamBuffers != nullptr)

  1857.         {

  1858.             delete[] fParamBuffers;

  1859.             fParamBuffers = nullptr;

  1860.         }

  1861. 

  1862.         CarlaPlugin::clearBuffers();

  1863. 

  1864.         carla_debug("DssiPlugin::clearBuffers() - end");

  1865.     }

  1866. 

  1867.     // -------------------------------------------------------------------

  1868.     // OSC stuff

  1869. 

  1870.     void updateOscURL() override

  1871.     {

  1872.         // DSSI does not support this

  1873.         if (! pData->osc.thread.isThreadRunning())

  1874.             return;

  1875. 

  1876.         showCustomUI(false);

  1877.         //showCustomUI(true);

  1878.     }

  1879. 

  1880.     // -------------------------------------------------------------------

  1881.     // Post-poned UI Stuff

  1882. 

  1883.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  1884.     {

  1885.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  1886. 

  1887.         if (pData->osc.data.target == nullptr)

  1888.             return;

  1889. 

  1890.         osc_send_control(pData->osc.data, pData->param.data[index].rindex, value);

  1891.     }

  1892. 

  1893.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1894.     {

  1895.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1896. 

  1897.         if (pData->osc.data.target == nullptr)

  1898.             return;

  1899. 

  1900.         osc_send_program(pData->osc.data, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  1901.     }

  1902. 

  1903.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1904.     {

  1905.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1906.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1907.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  1908. 

  1909.         if (pData->osc.data.target == nullptr)

  1910.             return;

  1911. 

  1912. #if 0

  1913.         uint8_t midiData[4];

  1914.         midiData[0] = 0;

  1915.         midiData[1] = static_cast<uint8_t>(MIDI_STATUS_NOTE_ON + channel);

  1916.         midiData[2] = note;

  1917.         midiData[3] = velo;

  1918. 

  1919.         osc_send_midi(pData->osc.data, midiData);

  1920. #endif

  1921.     }

  1922. 

  1923.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  1924.     {

  1925.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1926.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1927. 

  1928.         if (pData->osc.data.target == nullptr)

  1929.             return;

  1930. 

  1931. #if 0

  1932.         uint8_t midiData[4];

  1933.         midiData[0] = 0;

  1934.         midiData[1] = static_cast<uint8_t>(MIDI_STATUS_NOTE_OFF + channel);

  1935.         midiData[2] = note;

  1936.         midiData[3] = 0;

  1937. 

  1938.         osc_send_midi(pData->osc.data, midiData);

  1939. #endif

  1940.     }

  1941. 

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

  1943. 

  1944.     void* getNativeHandle() const noexcept override

  1945.     {

  1946.         return fHandle;

  1947.     }

  1948. 

  1949.     const void* getNativeDescriptor() const noexcept override

  1950.     {

  1951.         return fDssiDescriptor;

  1952.     }

  1953. 

  1954.     const void* getExtraStuff() const noexcept override

  1955.     {

  1956.         return fUiFilename;

  1957.     }

  1958. 

  1959.     // -------------------------------------------------------------------

  1960. 

  1961.     bool init(const char* const filename, const char* const name, const char* const label)

  1962.     {

  1963.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  1964. 

  1965.         // ---------------------------------------------------------------

  1966.         // first checks

  1967. 

  1968.         if (pData->client != nullptr)

  1969.         {

  1970.             pData->engine->setLastError("Plugin client is already registered");

  1971.             return false;

  1972.         }

  1973. 

  1974.         if (filename == nullptr || filename[0] == '\0')

  1975.         {

  1976.             pData->engine->setLastError("null filename");

  1977.             return false;

  1978.         }

  1979. 

  1980.         if (label == nullptr || label[0] == '\0')

  1981.         {

  1982.             pData->engine->setLastError("null label");

  1983.             return false;

  1984.         }

  1985. 

  1986.         // ---------------------------------------------------------------

  1987.         // open DLL

  1988. 

  1989.         if (! pData->libOpen(filename))

  1990.         {

  1991.             pData->engine->setLastError(pData->libError(filename));

  1992.             return false;

  1993.         }

  1994. 

  1995.         // ---------------------------------------------------------------

  1996.         // get DLL main entry

  1997. 

  1998.         const DSSI_Descriptor_Function descFn = (DSSI_Descriptor_Function)pData->libSymbol("dssi_descriptor");

  1999. 

  2000.         if (descFn == nullptr)

  2001.         {

  2002.             pData->engine->setLastError("Could not find the DSSI Descriptor in the plugin library");

  2003.             return false;

  2004.         }

  2005. 

  2006.         // ---------------------------------------------------------------

  2007.         // get descriptor that matches label

  2008. 

  2009.         ulong i = 0;

  2010. 

  2011.         for (;;)

  2012.         {

  2013.             try {

  2014.                 fDssiDescriptor = descFn(i++);

  2015.             }

  2016.             catch(...) {

  2017.                 carla_stderr2("Caught exception when trying to get LADSPA descriptor");

  2018.                 fDescriptor     = nullptr;

  2019.                 fDssiDescriptor = nullptr;

  2020.                 break;

  2021.             }

  2022. 

  2023.             if (fDssiDescriptor == nullptr)

  2024.                 break;

  2025. 

  2026.             fDescriptor = fDssiDescriptor->LADSPA_Plugin;

  2027. 

  2028.             if (fDescriptor == nullptr)

  2029.             {

  2030.                 carla_stderr2("WARNING - Missing LADSPA interface, will not use this plugin");

  2031.                 fDssiDescriptor = nullptr;

  2032.                 break;

  2033.             }

  2034.             if (fDescriptor->Label == nullptr || fDescriptor->Label[0] == '\0')

  2035.             {

  2036.                 carla_stderr2("WARNING - Got an invalid label, will not use this plugin");

  2037.                 fDescriptor     = nullptr;

  2038.                 fDssiDescriptor = nullptr;

  2039.                 break;

  2040.             }

  2041.             if (fDescriptor->run == nullptr)

  2042.             {

  2043.                 carla_stderr2("WARNING - Plugin has no run, cannot use it");

  2044.                 fDescriptor     = nullptr;

  2045.                 fDssiDescriptor = nullptr;

  2046.                 break;

  2047.             }

  2048. 

  2049.             if (std::strcmp(fDescriptor->Label, label) == 0)

  2050.                 break;

  2051.         }

  2052. 

  2053.         if (fDescriptor == nullptr || fDssiDescriptor == nullptr)

  2054.         {

  2055.             pData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  2056.             return false;

  2057.         }

  2058. 

  2059.         // ---------------------------------------------------------------

  2060.         // check if uses global instance

  2061. 

  2062.         if (fDssiDescriptor->run_synth == nullptr && fDssiDescriptor->run_multiple_synths != nullptr)

  2063.         {

  2064.             if (! addUniqueMultiSynth(fDescriptor->Label))

  2065.             {

  2066.                 pData->engine->setLastError("This plugin uses a global instance and can't be used more than once safely");

  2067.                 return false;

  2068.             }

  2069.         }

  2070. 

  2071.         // ---------------------------------------------------------------

  2072.         // get info

  2073. 

  2074.         if (name != nullptr && name[0] != '\0')

  2075.             pData->name = pData->engine->getUniquePluginName(name);

  2076.         else if (fDescriptor->Name != nullptr && fDescriptor->Name[0] != '\0')

  2077.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Name);

  2078.         else

  2079.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Label);

  2080. 

  2081.         pData->filename = carla_strdup(filename);

  2082. 

  2083.         // ---------------------------------------------------------------

  2084.         // register client

  2085. 

  2086.         pData->client = pData->engine->addClient(this);

  2087. 

  2088.         if (pData->client == nullptr || ! pData->client->isOk())

  2089.         {

  2090.             pData->engine->setLastError("Failed to register plugin client");

  2091.             return false;

  2092.         }

  2093. 

  2094.         // ---------------------------------------------------------------

  2095.         // initialize plugin

  2096. 

  2097.         try {

  2098.             fHandle = fDescriptor->instantiate(fDescriptor, (ulong)pData->engine->getSampleRate());

  2099.         } CARLA_SAFE_EXCEPTION("DSSI instantiate");

  2100. 

  2101.         if (fHandle == nullptr)

  2102.         {

  2103.             pData->engine->setLastError("Plugin failed to initialize");

  2104.             return false;

  2105.         }

  2106. 

  2107.         // ---------------------------------------------------------------

  2108.         // check for custom data extension

  2109. 

  2110.         if (fDssiDescriptor->configure != nullptr)

  2111.         {

  2112.             if (char* const error = fDssiDescriptor->configure(fHandle, DSSI_CUSTOMDATA_EXTENSION_KEY, ""))

  2113.             {

  2114.                 if (std::strcmp(error, "true") == 0 && fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->set_custom_data != nullptr)

  2115.                     fUsesCustomData = true;

  2116. 

  2117.                 std::free(error);

  2118.             }

  2119.         }

  2120. 

  2121.         // ---------------------------------------------------------------

  2122.         // gui stuff

  2123. 

  2124.         if (const char* const guiFilename = find_dssi_ui(filename, fDescriptor->Label))

  2125.         {

  2126.             pData->osc.thread.setOscData(guiFilename, fDescriptor->Label);

  2127.             fUiFilename = guiFilename;

  2128.         }

  2129. 

  2130.         // ---------------------------------------------------------------

  2131.         // set default options

  2132. 

  2133. #ifdef __USE_GNU

  2134.         const bool isDssiVst(strcasestr(pData->filename, "dssi-vst") != nullptr);

  2135. #else

  2136.         const bool isDssiVst(std::strstr(pData->filename, "dssi-vst") != nullptr);

  2137. #endif

  2138. 

  2139.         pData->options  = 0x0;

  2140.         pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  2141. 

  2142.         if (fLatencyIndex >= 0 || isDssiVst)

  2143.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2144. 

  2145.         if (pData->engine->getOptions().forceStereo)

  2146.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2147. 

  2148.         if (fUsesCustomData)

  2149.             pData->options |= PLUGIN_OPTION_USE_CHUNKS;

  2150. 

  2151.         if (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr)

  2152.         {

  2153.             pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  2154.             pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  2155.             pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  2156.             pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  2157. 

  2158.             if (fDssiDescriptor->run_synth == nullptr)

  2159.                 carla_stderr("WARNING: Plugin can ONLY use run_multiple_synths!");

  2160.         }

  2161. 

  2162.         return true;

  2163.     }

  2164. 

  2165.     // -------------------------------------------------------------------

  2166. 

  2167. private:

  2168.     LADSPA_Handle fHandle;

  2169.     LADSPA_Handle fHandle2;

  2170.     const LADSPA_Descriptor* fDescriptor;

  2171.     const DSSI_Descriptor*   fDssiDescriptor;

  2172. 

  2173.     bool fUsesCustomData;

  2174.     const char* fUiFilename;

  2175. 

  2176.     float** fAudioInBuffers;

  2177.     float** fAudioOutBuffers;

  2178.     float*  fParamBuffers;

  2179. 

  2180.     bool    fLatencyChanged;

  2181.     int32_t fLatencyIndex; // -1 if invalid

  2182. 

  2183.     snd_seq_event_t fMidiEvents[kPluginMaxMidiEvents];

  2184. 

  2185.     // -------------------------------------------------------------------

  2186. 

  2187.     uint32_t getSafePortCount() const noexcept

  2188.     {

  2189.         if (fDescriptor->PortCount == 0)

  2190.             return 0;

  2191. 

  2192.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortDescriptors != nullptr, 0);

  2193.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortRangeHints != nullptr, 0);

  2194.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortNames != nullptr, 0);

  2195. 

  2196.         return static_cast<uint32_t>(fDescriptor->PortCount);

  2197.     }

  2198. 

  2199.     bool getSeparatedParameterNameOrUnit(const char* const paramName, char* const strBuf, const bool wantName) const noexcept

  2200.     {

  2201.         if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, true))

  2202.             return true;

  2203.         if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, false))

  2204.             return true;

  2205.         return false;

  2206.     }

  2207. 

  2208.     bool _getSeparatedParameterNameOrUnitImpl(const char* const paramName, char* const strBuf, const bool wantName, const bool useBracket) const noexcept

  2209.     {

  2210.         const char* const sepBracketStart(std::strstr(paramName, useBracket ? " [" : " ("));

  2211. 

  2212.         if (sepBracketStart == nullptr)

  2213.             return false;

  2214. 

  2215.         const char* const sepBracketEnd(std::strstr(sepBracketStart, useBracket ? "]" : ")"));

  2216. 

  2217.         if (sepBracketEnd == nullptr)

  2218.             return false;

  2219. 

  2220.         const size_t unitSize(static_cast<size_t>(sepBracketEnd-sepBracketStart-2));

  2221. 

  2222.         if (unitSize > 7) // very unlikely to have such big unit

  2223.             return false;

  2224. 

  2225.         const size_t sepIndex(std::strlen(paramName)-unitSize-3);

  2226. 

  2227.         // just in case

  2228.         if (sepIndex > STR_MAX)

  2229.             return false;

  2230. 

  2231.         if (wantName)

  2232.         {

  2233.             std::strncpy(strBuf, paramName, sepIndex);

  2234.             strBuf[sepIndex] = '\0';

  2235.         }

  2236.         else

  2237.         {

  2238.             std::strncpy(strBuf, paramName+(sepIndex+2), unitSize);

  2239.             strBuf[unitSize] = '\0';

  2240.         }

  2241. 

  2242.         return true;

  2243.     }

  2244. 

  2245.     // -------------------------------------------------------------------

  2246. 

  2247.     static LinkedList<const char*> sMultiSynthList;

  2248. 

  2249.     static bool addUniqueMultiSynth(const char* const label) noexcept

  2250.     {

  2251.         CARLA_SAFE_ASSERT_RETURN(label != nullptr && label[0] != '\0', false);

  2252. 

  2253.         const char* dlabel = nullptr;

  2254. 

  2255.         try {

  2256.             dlabel = carla_strdup(label);

  2257.         } catch(...) { return false; }

  2258. 

  2259.         for (LinkedList<const char*>::Itenerator it = sMultiSynthList.begin(); it.valid(); it.next())

  2260.         {

  2261.             const char* const itLabel(it.getValue());

  2262. 

  2263.             if (std::strcmp(dlabel, itLabel) == 0)

  2264.             {

  2265.                 delete[] dlabel;

  2266.                 return false;

  2267.             }

  2268.         }

  2269. 

  2270.         return sMultiSynthList.append(dlabel);

  2271.     }

  2272. 

  2273.     static void removeUniqueMultiSynth(const char* const label) noexcept

  2274.     {

  2275.         CARLA_SAFE_ASSERT_RETURN(label != nullptr && label[0] != '\0',);

  2276. 

  2277.         for (LinkedList<const char*>::Itenerator it = sMultiSynthList.begin(); it.valid(); it.next())

  2278.         {

  2279.             const char* const itLabel(it.getValue());

  2280. 

  2281.             if (std::strcmp(label, itLabel) == 0)

  2282.             {

  2283.                 sMultiSynthList.remove(it);

  2284.                 delete[] itLabel;

  2285.                 break;

  2286.             }

  2287.         }

  2288.     }

  2289. 

  2290.     // -------------------------------------------------------------------

  2291. 

  2292.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(DssiPlugin)

  2293. };

  2294. 

  2295. LinkedList<const char*> DssiPlugin::sMultiSynthList;

  2296. 

  2297. // -------------------------------------------------------------------------------------------------------------------

  2298. 

  2299. CarlaPlugin* CarlaPlugin::newDSSI(const Initializer& init)

  2300. {

  2301.     carla_debug("CarlaPlugin::newDSSI({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "})", init.engine, init.filename, init.name, init.label, init.uniqueId);

  2302. 

  2303.     DssiPlugin* const plugin(new DssiPlugin(init.engine, init.id));

  2304. 

  2305.     if (! plugin->init(init.filename, init.name, init.label))

  2306.     {

  2307.         delete plugin;

  2308.         return nullptr;

  2309.     }

  2310. 

  2311.     plugin->reload();

  2312. 

  2313.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && ! plugin->canRunInRack())

  2314.     {

  2315.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo DSSI plugins, sorry!");

  2316.         delete plugin;

  2317.         return nullptr;

  2318.     }

  2319. 

  2320.     return plugin;

  2321. }

  2322. 

  2323. // -------------------------------------------------------------------------------------------------------------------

  2324. 

  2325. CARLA_BACKEND_END_NAMESPACE