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Carla
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Carla/source/backend/plugin/CarlaPluginDSSI.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. // TODO: set fUsesCustomData and latency index before init finishes

  19. // TODO: common laterncy code

  20. 

  21. #include "CarlaPluginInternal.hpp"

  22. #include "CarlaEngine.hpp"

  23. 

  24. #include "CarlaDssiUtils.hpp"

  25. #include "CarlaMathUtils.hpp"

  26. #include "CarlaThread.hpp"

  27. 

  28. using juce::ChildProcess;

  29. using juce::ScopedPointer;

  30. using juce::String;

  31. using juce::StringArray;

  32. 

  33. #define CARLA_PLUGIN_DSSI_OSC_CHECK_OSC_TYPES(/* argc, types, */ argcToCompare, typesToCompare)                                 \

  34.     /* check argument count */                                                                                                  \

  35.     if (argc != argcToCompare)                                                                                                  \

  36.     {                                                                                                                           \

  37.         carla_stderr("CarlaPluginDSSI::%s() - argument count mismatch: %i != %i", __FUNCTION__, argc, argcToCompare);           \

  38.         return;                                                                                                                 \

  39.     }                                                                                                                           \

  40.     if (argc > 0)                                                                                                               \

  41.     {                                                                                                                           \

  42.         /* check for nullness */                                                                                                \

  43.         if (types == nullptr || typesToCompare == nullptr)                                                                      \

  44.         {                                                                                                                       \

  45.             carla_stderr("CarlaPluginDSSI::%s() - argument types are null", __FUNCTION__);                                      \

  46.             return;                                                                                                             \

  47.         }                                                                                                                       \

  48.         /* check argument types */                                                                                              \

  49.         if (std::strcmp(types, typesToCompare) != 0)                                                                            \

  50.         {                                                                                                                       \

  51.             carla_stderr("CarlaPluginDSSI::%s() - argument types mismatch: '%s' != '%s'", __FUNCTION__, types, typesToCompare); \

  52.             return;                                                                                                             \

  53.         }                                                                                                                       \

  54.     }

  55. 

  56. CARLA_BACKEND_START_NAMESPACE

  57. 

  58. // -------------------------------------------------------------------

  59. // Fallback data

  60. 

  61. static const CustomData kCustomDataFallback = { nullptr, nullptr, nullptr };

  62. 

  63. // -------------------------------------------------------------------

  64. 

  65. class CarlaThreadDSSIUI : public CarlaThread

  66. {

  67. public:

  68.     CarlaThreadDSSIUI(CarlaEngine* const engine, CarlaPlugin* const plugin, const CarlaOscData& oscData) noexcept

  69.         : CarlaThread("CarlaThreadDSSIUI"),

  70.           kEngine(engine),

  71.           kPlugin(plugin),

  72.           fBinary(),

  73.           fLabel(),

  74.           fOscData(oscData),

  75.           fProcess(),

  76.           leakDetector_CarlaThreadDSSIUI() {}

  77. 

  78.     void setData(const char* const binary, const char* const label) noexcept

  79.     {

  80.         CARLA_SAFE_ASSERT_RETURN(binary != nullptr && binary[0] != '\0',);

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

  82.         CARLA_SAFE_ASSERT(! isThreadRunning());

  83. 

  84.         fBinary = binary;

  85.         fLabel  = label;

  86. 

  87.         if (fLabel.isEmpty())

  88.             fLabel = "\"\"";

  89.     }

  90. 

  91.     uintptr_t getProcessPID() const noexcept

  92.     {

  93.         CARLA_SAFE_ASSERT_RETURN(fProcess != nullptr, 0);

  94. 

  95.         return (uintptr_t)fProcess->getPID();

  96.     }

  97. 

  98.     void run()

  99.     {

  100.         if (fProcess == nullptr)

  101.         {

  102.             fProcess = new ChildProcess();

  103.         }

  104.         else if (fProcess->isRunning())

  105.         {

  106.             carla_stderr("CarlaThreadDSSI::run() - already running, giving up...");

  107. 

  108.             kEngine->callback(CarlaBackend::ENGINE_CALLBACK_UI_STATE_CHANGED, kPlugin->getId(), 0, 0, 0.0f, nullptr);

  109.             fProcess->kill();

  110.             fProcess = nullptr;

  111.             return;

  112.         }

  113. 

  114. #if 0 //def CARLA_OS_LINUX

  115.         const char* const oldPreload(std::getenv("LD_PRELOAD"));

  116.         ::unsetenv("LD_PRELOAD");

  117. 

  118.         if (oldPreload != nullptr)

  119.             ::setenv("LD_PRELOAD", oldPreload, 1);

  120. #endif

  121. 

  122.         String name(kPlugin->getName());

  123.         String filename(kPlugin->getFilename());

  124. 

  125.         if (name.isEmpty())

  126.             name = "(none)";

  127. 

  128.         if (filename.isEmpty())

  129.             filename = "\"\"";

  130. 

  131.         StringArray arguments;

  132. 

  133. #ifndef CARLA_OS_WIN

  134.         // start with "wine" if needed

  135.         if (fBinary.endsWith(".exe"))

  136.             arguments.add("wine");

  137. #endif

  138. 

  139.         // binary

  140.         arguments.add(fBinary.buffer());

  141. 

  142.         // osc-url

  143.         arguments.add(String(kEngine->getOscServerPathUDP()) + String("/") + String(kPlugin->getId()));

  144. 

  145.         // filename

  146.         arguments.add(filename);

  147. 

  148.         // label

  149.         arguments.add(fLabel.buffer());

  150. 

  151.         // ui-title

  152.         arguments.add(name + String(" (GUI)"));

  153. 

  154.         carla_stdout("starting DSSI UI...");

  155. 

  156.         if (! fProcess->start(arguments))

  157.         {

  158.             carla_stdout("failed!");

  159.             fProcess = nullptr;

  160.             return;

  161.         }

  162. 

  163.         if (waitForOscGuiShow())

  164.         {

  165.             for (; fProcess->isRunning() && ! shouldThreadExit();)

  166.                 carla_sleep(1);

  167. 

  168.             // we only get here if UI was closed or thread asked to exit

  169.             if (fProcess->isRunning() && shouldThreadExit())

  170.             {

  171.                 fProcess->waitForProcessToFinish(static_cast<int>(kEngine->getOptions().uiBridgesTimeout));

  172. 

  173.                 if (fProcess->isRunning())

  174.                 {

  175.                     carla_stdout("CarlaThreadDSSIUI::run() - UI refused to close, force kill now");

  176.                     fProcess->kill();

  177.                 }

  178.                 else

  179.                 {

  180.                     carla_stdout("CarlaThreadDSSIUI::run() - UI auto-closed successfully");

  181.                 }

  182.             }

  183.             else if (fProcess->getExitCode() != 0 /*|| fProcess->exitStatus() == QProcess::CrashExit*/)

  184.                 carla_stderr("CarlaThreadDSSIUI::run() - UI crashed while running");

  185.             else

  186.                 carla_stdout("CarlaThreadDSSIUI::run() - UI closed cleanly");

  187. 

  188.             kEngine->callback(CarlaBackend::ENGINE_CALLBACK_UI_STATE_CHANGED, kPlugin->getId(), 0, 0, 0.0f, nullptr);

  189.         }

  190.         else

  191.         {

  192.             fProcess->kill();

  193. 

  194.             carla_stdout("CarlaThreadDSSIUI::run() - GUI timeout");

  195.             kEngine->callback(CarlaBackend::ENGINE_CALLBACK_UI_STATE_CHANGED, kPlugin->getId(), 0, 0, 0.0f, nullptr);

  196.         }

  197. 

  198.         carla_stdout("DSSI UI finished");

  199.         fProcess = nullptr;

  200.     }

  201. 

  202. private:

  203.     CarlaEngine* const kEngine;

  204.     CarlaPlugin* const kPlugin;

  205. 

  206.     CarlaString fBinary;

  207.     CarlaString fLabel;

  208. 

  209.     const CarlaOscData&         fOscData;

  210.     ScopedPointer<ChildProcess> fProcess;

  211. 

  212.     bool waitForOscGuiShow()

  213.     {

  214.         carla_stdout("CarlaThreadDSSIUI::waitForOscGuiShow()");

  215.         uint i=0, oscUiTimeout = kEngine->getOptions().uiBridgesTimeout;

  216. 

  217.         // wait for UI 'update' call

  218.         for (; i < oscUiTimeout/100; ++i)

  219.         {

  220.             if (fOscData.target != nullptr)

  221.             {

  222.                 carla_stdout("CarlaThreadDSSIUI::waitForOscGuiShow() - got response, asking UI to show itself now");

  223.                 osc_send_show(fOscData);

  224.                 return true;

  225.             }

  226. 

  227.             if (fProcess != nullptr && fProcess->isRunning())

  228.                 carla_msleep(100);

  229.             else

  230.                 return false;

  231.         }

  232. 

  233.         carla_stdout("CarlaThreadDSSIUI::waitForOscGuiShow() - Timeout while waiting for UI to respond (waited %u msecs)", oscUiTimeout);

  234.         return false;

  235.     }

  236. 

  237.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaThreadDSSIUI)

  238. };

  239. 

  240. // -----------------------------------------------------

  241. 

  242. class CarlaPluginDSSI : public CarlaPlugin

  243. {

  244. public:

  245.     CarlaPluginDSSI(CarlaEngine* const engine, const uint id) noexcept

  246.         : CarlaPlugin(engine, id),

  247.           fHandle(nullptr),

  248.           fHandle2(nullptr),

  249.           fDescriptor(nullptr),

  250.           fDssiDescriptor(nullptr),

  251.           fUsesCustomData(false),

  252.           fUiFilename(nullptr),

  253.           fAudioInBuffers(nullptr),

  254.           fAudioOutBuffers(nullptr),

  255.           fParamBuffers(nullptr),

  256.           fLatencyChanged(false),

  257.           fLatencyIndex(-1),

  258.           fOscData(),

  259.           fThreadUI(engine, this, fOscData),

  260.           leakDetector_CarlaPluginDSSI()

  261.     {

  262.         carla_debug("CarlaPluginDSSI::CarlaPluginDSSI(%p, %i)", engine, id);

  263.     }

  264. 

  265.     ~CarlaPluginDSSI() noexcept override

  266.     {

  267.         carla_debug("CarlaPluginDSSI::~CarlaPluginDSSI()");

  268. 

  269.         // close UI

  270.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  271.         {

  272.             showCustomUI(false);

  273. 

  274.             fThreadUI.stopThread(static_cast<int>(pData->engine->getOptions().uiBridgesTimeout * 2));

  275.         }

  276. 

  277.         pData->singleMutex.lock();

  278.         pData->masterMutex.lock();

  279. 

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

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

  282. 

  283.         if (pData->active)

  284.         {

  285.             deactivate();

  286.             pData->active = false;

  287.         }

  288. 

  289.         if (fDescriptor != nullptr)

  290.         {

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

  292.                 removeUniqueMultiSynth(fDescriptor->Label);

  293. 

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

  295.             {

  296.                 if (fHandle != nullptr)

  297.                 {

  298.                     try {

  299.                         fDescriptor->cleanup(fHandle);

  300.                     } CARLA_SAFE_EXCEPTION("DSSI cleanup");

  301.                 }

  302. 

  303.                 if (fHandle2 != nullptr)

  304.                 {

  305.                     try {

  306.                         fDescriptor->cleanup(fHandle2);

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

  308.                 }

  309.             }

  310. 

  311.             fHandle  = nullptr;

  312.             fHandle2 = nullptr;

  313.             fDescriptor = nullptr;

  314.             fDssiDescriptor = nullptr;

  315.         }

  316. 

  317.         if (fUiFilename != nullptr)

  318.         {

  319.             delete[] fUiFilename;

  320.             fUiFilename = nullptr;

  321.         }

  322. 

  323.         clearBuffers();

  324.     }

  325. 

  326.     // -------------------------------------------------------------------

  327.     // Information (base)

  328. 

  329.     PluginType getType() const noexcept override

  330.     {

  331.         return PLUGIN_DSSI;

  332.     }

  333. 

  334.     PluginCategory getCategory() const noexcept override

  335.     {

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

  337. 

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

  339.             return PLUGIN_CATEGORY_SYNTH;

  340. 

  341.         return CarlaPlugin::getCategory();

  342.     }

  343. 

  344.     int64_t getUniqueId() const noexcept override

  345.     {

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

  347. 

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

  349.     }

  350. 

  351.     // -------------------------------------------------------------------

  352.     // Information (count)

  353. 

  354.     // nothing

  355. 

  356.     // -------------------------------------------------------------------

  357.     // Information (current data)

  358. 

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

  360.     {

  361.         CARLA_SAFE_ASSERT_RETURN(fUsesCustomData, 0);

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

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

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

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

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

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

  368. 

  369.         *dataPtr = nullptr;

  370. 

  371.         int ret = 0;

  372.         ulong dataSize = 0;

  373. 

  374.         try {

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

  376.         } CARLA_SAFE_EXCEPTION_RETURN("CarlaPluginDSSI::getChunkData", 0);

  377. 

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

  379.     }

  380. 

  381.     // -------------------------------------------------------------------

  382.     // Information (per-plugin data)

  383. 

  384.     uint getOptionsAvailable() const noexcept override

  385.     {

  386.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr, 0x0);

  387. 

  388. #ifdef __USE_GNU

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

  390. #else

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

  392. #endif

  393. 

  394.         uint options = 0x0;

  395. 

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

  397.             options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  398. 

  399.         if (! isDssiVst)

  400.         {

  401.             if (fLatencyIndex == -1)

  402.                 options |= PLUGIN_OPTION_FIXED_BUFFERS;

  403. 

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

  405.             {

  406.                 if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  407.                     options |= PLUGIN_OPTION_FORCE_STEREO;

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

  409.                     options |= PLUGIN_OPTION_FORCE_STEREO;

  410.             }

  411.         }

  412. 

  413.         if (fUsesCustomData)

  414.             options |= PLUGIN_OPTION_USE_CHUNKS;

  415. 

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

  417.         {

  418.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  419.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  420.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  421.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

  422.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  423.         }

  424. 

  425.         return options;

  426.     }

  427. 

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

  429.     {

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

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

  432. 

  433.         return fParamBuffers[parameterId];

  434.     }

  435. 

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

  437.     {

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

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

  440. 

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

  442.     }

  443. 

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

  445.     {

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

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

  448. 

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

  450.     }

  451. 

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

  453.     {

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

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

  456. 

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

  458.     }

  459. 

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

  461.     {

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

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

  464. 

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

  466.     }

  467. 

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

  469.     {

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

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

  472. 

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

  474. 

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

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

  477. 

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

  479.             return;

  480. 

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

  482.     }

  483. 

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

  485.     {

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

  487. 

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

  489. 

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

  491. 

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

  493.             return;

  494. 

  495.         nullStrBuf(strBuf);

  496.     }

  497. 

  498.     // -------------------------------------------------------------------

  499.     // Set data (state)

  500. 

  501.     // nothing

  502. 

  503.     // -------------------------------------------------------------------

  504.     // Set data (internal stuff)

  505. 

  506.     void setId(const uint newId) noexcept

  507.     {

  508.         CarlaPlugin::setId(newId);

  509. 

  510.         // UI osc-url uses Id, so we need to close it when it changes

  511.         showCustomUI(false);

  512.     }

  513. 

  514.     // -------------------------------------------------------------------

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

  516. 

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

  518.     {

  519.         CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr,);

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

  521. 

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

  523.         fParamBuffers[parameterId] = fixedValue;

  524. 

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

  526.     }

  527. 

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

  529.     {

  530.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  531.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

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

  534.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

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

  536. 

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

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

  539. 

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

  541.         {

  542.             try {

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

  544.             } catch(...) {}

  545. 

  546.             if (fHandle2 != nullptr)

  547.             {

  548.                 try {

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

  550.                 } catch(...) {}

  551.             }

  552.         }

  553. 

  554.         if (sendGui && fOscData.target != nullptr)

  555.             osc_send_configure(fOscData, key, value);

  556. 

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

  558.         {

  559.             const ScopedSingleProcessLocker spl(this, true);

  560.             reloadPrograms(false);

  561.         }

  562. 

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

  564.     }

  565. 

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

  567.     {

  568.         CARLA_SAFE_ASSERT_RETURN(fUsesCustomData,);

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

  570.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

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

  572.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  573.         CARLA_SAFE_ASSERT_RETURN(fHandle2 == nullptr,);

  574.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  575.         CARLA_SAFE_ASSERT_RETURN(dataSize > 0,);

  576. 

  577.         {

  578.             const ScopedSingleProcessLocker spl(this, true);

  579. 

  580.             try {

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

  582.             } CARLA_SAFE_EXCEPTION("CarlaPluginDSSI::setChunkData");

  583.         }

  584. 

  585. #ifdef BUILD_BRIDGE

  586.         const bool sendOsc(false);

  587. #else

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

  589. #endif

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

  591.     }

  592. 

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

  594.     {

  595.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

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

  597.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  599. 

  600.         if (index >= 0)

  601.         {

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

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

  604. 

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

  606. 

  607.             try {

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

  609.             } catch(...) {}

  610. 

  611.             if (fHandle2 != nullptr)

  612.             {

  613.                 try {

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

  615.                 } catch(...) {}

  616.             }

  617.         }

  618. 

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

  620.     }

  621. 

  622.     // -------------------------------------------------------------------

  623.     // Set ui stuff

  624. 

  625.     void showCustomUI(const bool yesNo) override

  626.     {

  627.         if (yesNo)

  628.         {

  629.             fOscData.clear();

  630.             fThreadUI.startThread();

  631.         }

  632.         else

  633.         {

  634.             pData->transientTryCounter = 0;

  635. 

  636.             if (fOscData.target != nullptr)

  637.             {

  638.                 osc_send_hide(fOscData);

  639.                 osc_send_quit(fOscData);

  640.                 fOscData.clear();

  641.             }

  642. 

  643.             fThreadUI.stopThread(static_cast<int>(pData->engine->getOptions().uiBridgesTimeout * 2));

  644.         }

  645.     }

  646. 

  647.     void idle() override

  648.     {

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

  650.         {

  651.             fLatencyChanged = false;

  652. 

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

  654. 

  655.             if (latency >= 0)

  656.             {

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

  658. 

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

  660.                 {

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

  662. 

  663.                     const ScopedSingleProcessLocker sspl(this, true);

  664. 

  665.                     pData->latency = ulatency;

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

  667. #ifndef BUILD_BRIDGE

  668.                     pData->recreateLatencyBuffers();

  669. #endif

  670.                 }

  671.             }

  672.             else

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

  674.         }

  675. 

  676.         CarlaPlugin::idle();

  677.     }

  678. 

  679.     // -------------------------------------------------------------------

  680.     // Plugin state

  681. 

  682.     void reload() override

  683.     {

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

  685.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  686.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  687.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  688.         carla_debug("CarlaPluginDSSI::reload() - start");

  689. 

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

  691. 

  692.         // Safely disable plugin for reload

  693.         const ScopedDisabler sd(this);

  694. 

  695.         if (pData->active)

  696.             deactivate();

  697. 

  698.         clearBuffers();

  699. 

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

  701.         const uint32_t portCount(getSafePortCount());

  702. 

  703.         uint32_t aIns, aOuts, mIns, params;

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

  705. 

  706.         bool forcedStereoIn, forcedStereoOut;

  707.         forcedStereoIn = forcedStereoOut = false;

  708. 

  709.         bool needsCtrlIn, needsCtrlOut;

  710.         needsCtrlIn = needsCtrlOut = false;

  711. 

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

  713.         {

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

  715. 

  716.             if (LADSPA_IS_PORT_AUDIO(portType))

  717.             {

  718.                 if (LADSPA_IS_PORT_INPUT(portType))

  719.                     aIns += 1;

  720.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  721.                     aOuts += 1;

  722.             }

  723.             else if (LADSPA_IS_PORT_CONTROL(portType))

  724.                 params += 1;

  725.         }

  726. 

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

  728.         {

  729.             if (fHandle2 == nullptr)

  730.             {

  731.                 try {

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

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

  734.             }

  735. 

  736.             if (fHandle2 != nullptr)

  737.             {

  738.                 if (aIns == 1)

  739.                 {

  740.                     aIns = 2;

  741.                     forcedStereoIn = true;

  742.                 }

  743. 

  744.                 if (aOuts == 1)

  745.                 {

  746.                     aOuts = 2;

  747.                     forcedStereoOut = true;

  748.                 }

  749.             }

  750.         }

  751. 

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

  753.         {

  754.             mIns = 1;

  755.             needsCtrlIn = true;

  756.         }

  757. 

  758.         if (aIns > 0)

  759.         {

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

  761.             fAudioInBuffers = new float*[aIns];

  762. 

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

  764.                 fAudioInBuffers[i] = nullptr;

  765.         }

  766. 

  767.         if (aOuts > 0)

  768.         {

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

  770.             fAudioOutBuffers = new float*[aOuts];

  771.             needsCtrlIn = true;

  772. 

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

  774.                 fAudioOutBuffers[i] = nullptr;

  775.         }

  776. 

  777.         if (params > 0)

  778.         {

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

  780. 

  781.             fParamBuffers = new float[params];

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

  783.         }

  784. 

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

  786.         CarlaString portName;

  787. 

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

  789.         {

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

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

  792. 

  793.             if (LADSPA_IS_PORT_AUDIO(portType))

  794.             {

  795.                 portName.clear();

  796. 

  797.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  798.                 {

  799.                     portName  = pData->name;

  800.                     portName += ":";

  801.                 }

  802. 

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

  804.                 {

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

  806.                 }

  807.                 else

  808.                 {

  809.                     if (LADSPA_IS_PORT_INPUT(portType))

  810.                     {

  811.                         if (aIns > 1)

  812.                         {

  813.                             portName += "audio-in_";

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

  815.                         }

  816.                         else

  817.                             portName += "audio-in";

  818.                     }

  819.                     else

  820.                     {

  821.                         if (aOuts > 1)

  822.                         {

  823.                             portName += "audio-out_";

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

  825.                         }

  826.                         else

  827.                             portName += "audio-out";

  828.                     }

  829.                 }

  830. 

  831.                 portName.truncate(portNameSize);

  832. 

  833.                 if (LADSPA_IS_PORT_INPUT(portType))

  834.                 {

  835.                     const uint32_t j = iAudioIn++;

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

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

  838. 

  839.                     if (forcedStereoIn)

  840.                     {

  841.                         portName += "_2";

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

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

  844.                     }

  845.                 }

  846.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  847.                 {

  848.                     const uint32_t j = iAudioOut++;

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

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

  851. 

  852.                     if (forcedStereoOut)

  853.                     {

  854.                         portName += "_2";

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

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

  857.                     }

  858.                 }

  859.                 else

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

  861.             }

  862.             else if (LADSPA_IS_PORT_CONTROL(portType))

  863.             {

  864.                 const uint32_t j = iCtrl++;

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

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

  867. 

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

  869. 

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

  871. 

  872.                 // min value

  873.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  874.                     min = portRangeHints.LowerBound;

  875.                 else

  876.                     min = 0.0f;

  877. 

  878.                 // max value

  879.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  880.                     max = portRangeHints.UpperBound;

  881.                 else

  882.                     max = 1.0f;

  883. 

  884.                 if (min > max)

  885.                 {

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

  887.                     min = max - 0.1f;

  888.                 }

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

  890.                 {

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

  892.                     max = min + 0.1f;

  893.                 }

  894. 

  895.                 // default value

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

  897. 

  898.                 if (def < min)

  899.                     def = min;

  900.                 else if (def > max)

  901.                     def = max;

  902. 

  903.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  904.                 {

  905.                     min *= sampleRate;

  906.                     max *= sampleRate;

  907.                     def *= sampleRate;

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

  909.                 }

  910. 

  911.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  912.                 {

  913.                     step = max - min;

  914.                     stepSmall = step;

  915.                     stepLarge = step;

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

  917.                 }

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

  919.                 {

  920.                     step = 1.0f;

  921.                     stepSmall = 1.0f;

  922.                     stepLarge = 10.0f;

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

  924.                 }

  925.                 else

  926.                 {

  927.                     const float range = max - min;

  928.                     step = range/100.0f;

  929.                     stepSmall = range/1000.0f;

  930.                     stepLarge = range/10.0f;

  931.                 }

  932. 

  933.                 if (LADSPA_IS_PORT_INPUT(portType))

  934.                 {

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

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

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

  938.                     needsCtrlIn = true;

  939. 

  940.                     // MIDI CC value

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

  942.                     {

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

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

  945.                         {

  946.                             int16_t cc = DSSI_CC_NUMBER(controller);

  947.                             if (! MIDI_IS_CONTROL_BANK_SELECT(cc))

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

  949.                         }

  950.                     }

  951.                 }

  952.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  953.                 {

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

  955. 

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

  957.                     {

  958.                         min = 0.0f;

  959.                         max = sampleRate;

  960.                         def = 0.0f;

  961.                         step = 1.0f;

  962.                         stepSmall = 1.0f;

  963.                         stepLarge = 1.0f;

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

  965.                         CARLA_SAFE_ASSERT(fLatencyIndex == -1);

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

  967.                     }

  968.                     else

  969.                     {

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

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

  972.                         needsCtrlOut = true;

  973.                     }

  974.                 }

  975.                 else

  976.                 {

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

  978.                 }

  979. 

  980.                 // extra parameter hints

  981.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

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

  983. 

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

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

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

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

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

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

  990. 

  991.                 // Start parameters in their default values

  992.                 fParamBuffers[j] = def;

  993. 

  994.                 try {

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

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

  997. 

  998.                 if (fHandle2 != nullptr)

  999.                 {

  1000.                     try {

  1001.                         fDescriptor->connect_port(fHandle2, i, &fParamBuffers[j]);

  1002.                     } CARLA_SAFE_EXCEPTION("DSSI connect_port parameter #2");

  1003.                 }

  1004.             }

  1005.             else

  1006.             {

  1007.                 // Not Audio or Control

  1008.                 carla_stderr2("ERROR - Got a broken Port (neither Audio or Control)");

  1009. 

  1010.                 try {

  1011.                     fDescriptor->connect_port(fHandle, i, nullptr);

  1012.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port null");

  1013. 

  1014.                 if (fHandle2 != nullptr)

  1015.                 {

  1016.                     try {

  1017.                         fDescriptor->connect_port(fHandle2, i, nullptr);

  1018.                     } CARLA_SAFE_EXCEPTION("DSSI connect_port null #2");

  1019.                 }

  1020.             }

  1021.         }

  1022. 

  1023.         if (needsCtrlIn)

  1024.         {

  1025.             portName.clear();

  1026. 

  1027.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1028.             {

  1029.                 portName  = pData->name;

  1030.                 portName += ":";

  1031.             }

  1032. 

  1033.             portName += "events-in";

  1034.             portName.truncate(portNameSize);

  1035. 

  1036.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  1037.         }

  1038. 

  1039.         if (needsCtrlOut)

  1040.         {

  1041.             portName.clear();

  1042. 

  1043.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1044.             {

  1045.                 portName  = pData->name;

  1046.                 portName += ":";

  1047.             }

  1048. 

  1049.             portName += "events-out";

  1050.             portName.truncate(portNameSize);

  1051. 

  1052.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  1053.         }

  1054. 

  1055.         if (forcedStereoIn || forcedStereoOut)

  1056.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1057.         else

  1058.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  1059. 

  1060.         // plugin hints

  1061.         pData->hints = 0x0;

  1062. 

  1063.         if (LADSPA_IS_HARD_RT_CAPABLE(fDescriptor->Properties))

  1064.             pData->hints |= PLUGIN_IS_RTSAFE;

  1065. 

  1066.         if (fUiFilename != nullptr)

  1067.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  1068. 

  1069. #ifndef BUILD_BRIDGE

  1070.         if (aOuts > 0 && (aIns == aOuts || aIns == 1))

  1071.             pData->hints |= PLUGIN_CAN_DRYWET;

  1072. 

  1073.         if (aOuts > 0)

  1074.             pData->hints |= PLUGIN_CAN_VOLUME;

  1075. 

  1076.         if (aOuts >= 2 && aOuts % 2 == 0)

  1077.             pData->hints |= PLUGIN_CAN_BALANCE;

  1078. #endif

  1079. 

  1080.         // extra plugin hints

  1081.         pData->extraHints = 0x0;

  1082. 

  1083.         if (mIns > 0)

  1084.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  1085. 

  1086.         if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0))

  1087.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1088. 

  1089.         // check latency

  1090.         if (fLatencyIndex >= 0)

  1091.         {

  1092.             // we need to pre-run the plugin so it can update its latency control-port

  1093. 

  1094.             float tmpIn [(aIns > 0)  ? aIns  : 1][2];

  1095.             float tmpOut[(aOuts > 0) ? aOuts : 1][2];

  1096. 

  1097.             for (uint32_t j=0; j < aIns; ++j)

  1098.             {

  1099.                 tmpIn[j][0] = 0.0f;

  1100.                 tmpIn[j][1] = 0.0f;

  1101. 

  1102.                 try {

  1103.                     fDescriptor->connect_port(fHandle, pData->audioIn.ports[j].rindex, tmpIn[j]);

  1104.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port latency input");

  1105.             }

  1106. 

  1107.             for (uint32_t j=0; j < aOuts; ++j)

  1108.             {

  1109.                 tmpOut[j][0] = 0.0f;

  1110.                 tmpOut[j][1] = 0.0f;

  1111. 

  1112.                 try {

  1113.                     fDescriptor->connect_port(fHandle, pData->audioOut.ports[j].rindex, tmpOut[j]);

  1114.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port latency output");

  1115.             }

  1116. 

  1117.             if (fDescriptor->activate != nullptr)

  1118.             {

  1119.                 try {

  1120.                     fDescriptor->activate(fHandle);

  1121.                 } CARLA_SAFE_EXCEPTION("DSSI latency activate");

  1122.             }

  1123. 

  1124.             try {

  1125.                 fDescriptor->run(fHandle, 2);

  1126.             } CARLA_SAFE_EXCEPTION("DSSI latency run");

  1127. 

  1128.             if (fDescriptor->deactivate != nullptr)

  1129.             {

  1130.                 try {

  1131.                     fDescriptor->deactivate(fHandle);

  1132.                 } CARLA_SAFE_EXCEPTION("DSSI latency deactivate");

  1133.             }

  1134. 

  1135.             const int32_t latency(static_cast<int32_t>(fParamBuffers[fLatencyIndex]));

  1136. 

  1137.             if (latency >= 0)

  1138.             {

  1139.                 const uint32_t ulatency(static_cast<uint32_t>(latency));

  1140. 

  1141.                 if (pData->latency != ulatency)

  1142.                 {

  1143.                     carla_stdout("latency = %i", latency);

  1144. 

  1145.                     pData->latency = ulatency;

  1146.                     pData->client->setLatency(ulatency);

  1147. #ifndef BUILD_BRIDGE

  1148.                     pData->recreateLatencyBuffers();

  1149. #endif

  1150.                 }

  1151.             }

  1152.             else

  1153.                 carla_safe_assert_int("latency >= 0", __FILE__, __LINE__, latency);

  1154. 

  1155.             fLatencyChanged = false;

  1156.         }

  1157. 

  1158.         bufferSizeChanged(pData->engine->getBufferSize());

  1159.         reloadPrograms(true);

  1160. 

  1161.         if (pData->active)

  1162.             activate();

  1163. 

  1164.         carla_debug("CarlaPluginDSSI::reload() - end");

  1165.     }

  1166. 

  1167.     void reloadPrograms(const bool doInit) override

  1168.     {

  1169.         carla_debug("CarlaPluginDSSI::reloadPrograms(%s)", bool2str(doInit));

  1170.         const uint32_t oldCount = pData->midiprog.count;

  1171.         const int32_t  current  = pData->midiprog.current;

  1172. 

  1173.         // Delete old programs

  1174.         pData->midiprog.clear();

  1175. 

  1176.         // Query new programs

  1177.         uint32_t newCount = 0;

  1178.         if (fDssiDescriptor->get_program != nullptr && fDssiDescriptor->select_program != nullptr)

  1179.         {

  1180.             for (; fDssiDescriptor->get_program(fHandle, newCount) != nullptr;)

  1181.                 ++newCount;

  1182.         }

  1183. 

  1184.         if (newCount > 0)

  1185.         {

  1186.             pData->midiprog.createNew(newCount);

  1187. 

  1188.             // Update data

  1189.             for (uint32_t i=0; i < newCount; ++i)

  1190.             {

  1191.                 const DSSI_Program_Descriptor* const pdesc(fDssiDescriptor->get_program(fHandle, i));

  1192.                 CARLA_SAFE_ASSERT_CONTINUE(pdesc != nullptr);

  1193.                 CARLA_SAFE_ASSERT(pdesc->Name != nullptr);

  1194. 

  1195.                 pData->midiprog.data[i].bank    = static_cast<uint32_t>(pdesc->Bank);

  1196.                 pData->midiprog.data[i].program = static_cast<uint32_t>(pdesc->Program);

  1197.                 pData->midiprog.data[i].name    = carla_strdup(pdesc->Name);

  1198.             }

  1199.         }

  1200. 

  1201. #ifndef BUILD_BRIDGE

  1202.         // Update OSC Names

  1203.         if (pData->engine->isOscControlRegistered())

  1204.         {

  1205.             pData->engine->oscSend_control_set_midi_program_count(pData->id, newCount);

  1206. 

  1207.             for (uint32_t i=0; i < newCount; ++i)

  1208.                 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);

  1209.         }

  1210. #endif

  1211. 

  1212.         if (doInit)

  1213.         {

  1214.             if (newCount > 0)

  1215.                 setMidiProgram(0, false, false, false);

  1216.         }

  1217.         else

  1218.         {

  1219.             // Check if current program is invalid

  1220.             bool programChanged = false;

  1221. 

  1222.             if (newCount == oldCount+1)

  1223.             {

  1224.                 // one midi program added, probably created by user

  1225.                 pData->midiprog.current = static_cast<int32_t>(oldCount);

  1226.                 programChanged = true;

  1227.             }

  1228.             else if (current < 0 && newCount > 0)

  1229.             {

  1230.                 // programs exist now, but not before

  1231.                 pData->midiprog.current = 0;

  1232.                 programChanged = true;

  1233.             }

  1234.             else if (current >= 0 && newCount == 0)

  1235.             {

  1236.                 // programs existed before, but not anymore

  1237.                 pData->midiprog.current = -1;

  1238.                 programChanged = true;

  1239.             }

  1240.             else if (current >= static_cast<int32_t>(newCount))

  1241.             {

  1242.                 // current midi program > count

  1243.                 pData->midiprog.current = 0;

  1244.                 programChanged = true;

  1245.             }

  1246.             else

  1247.             {

  1248.                 // no change

  1249.                 pData->midiprog.current = current;

  1250.             }

  1251. 

  1252.             if (programChanged)

  1253.                 setMidiProgram(pData->midiprog.current, true, true, true);

  1254. 

  1255.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1256.         }

  1257.     }

  1258. 

  1259.     // -------------------------------------------------------------------

  1260.     // Plugin processing

  1261. 

  1262.     void activate() noexcept override

  1263.     {

  1264.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1265.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1266. 

  1267.         if (fDescriptor->activate != nullptr)

  1268.         {

  1269.             try {

  1270.                 fDescriptor->activate(fHandle);

  1271.             } CARLA_SAFE_EXCEPTION("DSSI activate");

  1272. 

  1273.             if (fHandle2 != nullptr)

  1274.             {

  1275.                 try {

  1276.                     fDescriptor->activate(fHandle2);

  1277.                 } CARLA_SAFE_EXCEPTION("DSSI activate #2");

  1278.             }

  1279.         }

  1280.     }

  1281. 

  1282.     void deactivate() noexcept override

  1283.     {

  1284.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1285.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1286. 

  1287.         if (fDescriptor->deactivate != nullptr)

  1288.         {

  1289.             try {

  1290.                 fDescriptor->deactivate(fHandle);

  1291.             } CARLA_SAFE_EXCEPTION("DSSI deactivate");

  1292. 

  1293.             if (fHandle2 != nullptr)

  1294.             {

  1295.                 try {

  1296.                     fDescriptor->deactivate(fHandle2);

  1297.                 } CARLA_SAFE_EXCEPTION("DSSI deactivate #2");

  1298.             }

  1299.         }

  1300.     }

  1301. 

  1302.     void process(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames) override

  1303.     {

  1304.         // --------------------------------------------------------------------------------------------------------

  1305.         // Check if active

  1306. 

  1307.         if (! pData->active)

  1308.         {

  1309.             // disable any output sound

  1310.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1311.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1312.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1313.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1314.             return;

  1315.         }

  1316. 

  1317.         ulong midiEventCount = 0;

  1318.         carla_zeroStruct<snd_seq_event_t>(fMidiEvents, kPluginMaxMidiEvents);

  1319. 

  1320.         // --------------------------------------------------------------------------------------------------------

  1321.         // Check if needs reset

  1322. 

  1323.         if (pData->needsReset)

  1324.         {

  1325.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1326.             {

  1327.                 midiEventCount = MAX_MIDI_CHANNELS*2;

  1328. 

  1329.                 for (uchar i=0, k=MAX_MIDI_CHANNELS; i < MAX_MIDI_CHANNELS; ++i)

  1330.                 {

  1331.                     fMidiEvents[i].type = SND_SEQ_EVENT_CONTROLLER;

  1332.                     fMidiEvents[i].data.control.channel = i;

  1333.                     fMidiEvents[i].data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1334. 

  1335.                     fMidiEvents[k+i].type = SND_SEQ_EVENT_CONTROLLER;

  1336.                     fMidiEvents[k+i].data.control.channel = i;

  1337.                     fMidiEvents[k+i].data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1338.                 }

  1339.             }

  1340.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1341.             {

  1342.                 midiEventCount = MAX_MIDI_NOTE;

  1343. 

  1344.                 for (uchar i=0; i < MAX_MIDI_NOTE; ++i)

  1345.                 {

  1346.                     fMidiEvents[i].type = SND_SEQ_EVENT_NOTEOFF;

  1347.                     fMidiEvents[i].data.note.channel = static_cast<uchar>(pData->ctrlChannel);

  1348.                     fMidiEvents[i].data.note.note    = i;

  1349.                 }

  1350.             }

  1351. 

  1352. #ifndef BUILD_BRIDGE

  1353.             if (pData->latency > 0)

  1354.             {

  1355.                 for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1356.                     FloatVectorOperations::clear(pData->latencyBuffers[i], static_cast<int>(pData->latency));

  1357.             }

  1358. #endif

  1359. 

  1360.             pData->needsReset = false;

  1361.         }

  1362. 

  1363.         // --------------------------------------------------------------------------------------------------------

  1364.         // Event Input and Processing

  1365. 

  1366.         if (pData->event.portIn != nullptr)

  1367.         {

  1368.             // ----------------------------------------------------------------------------------------------------

  1369.             // MIDI Input (External)

  1370. 

  1371.             if (pData->extNotes.mutex.tryLock())

  1372.             {

  1373.                 ExternalMidiNote note = { 0, 0, 0 };

  1374. 

  1375.                 for (; midiEventCount < kPluginMaxMidiEvents && ! pData->extNotes.data.isEmpty();)

  1376.                 {

  1377.                     note = pData->extNotes.data.getFirst(note, true);

  1378. 

  1379.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1380. 

  1381.                     snd_seq_event_t& seqEvent(fMidiEvents[midiEventCount++]);

  1382. 

  1383.                     seqEvent.type               = (note.velo > 0) ? SND_SEQ_EVENT_NOTEON : SND_SEQ_EVENT_NOTEOFF;

  1384.                     seqEvent.data.note.channel  = static_cast<uchar>(note.channel);

  1385.                     seqEvent.data.note.note     = note.note;

  1386.                     seqEvent.data.note.velocity = note.velo;

  1387.                 }

  1388. 

  1389.                 pData->extNotes.mutex.unlock();

  1390. 

  1391.             } // End of MIDI Input (External)

  1392. 

  1393.             // ----------------------------------------------------------------------------------------------------

  1394.             // Event Input (System)

  1395. 

  1396. #ifndef BUILD_BRIDGE

  1397.             bool       allNotesOffSent  = false;

  1398. #endif

  1399.             const bool isSampleAccurate = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1400. 

  1401.             uint32_t startTime  = 0;

  1402.             uint32_t timeOffset = 0;

  1403.             uint32_t nextBankId;

  1404. 

  1405.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1406.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1407.             else

  1408.                 nextBankId = 0;

  1409. 

  1410.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1411.             {

  1412.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1413. 

  1414.                 if (event.time >= frames)

  1415.                     continue;

  1416. 

  1417.                 CARLA_ASSERT_INT2(event.time >= timeOffset, event.time, timeOffset);

  1418. 

  1419.                 if (isSampleAccurate && event.time > timeOffset)

  1420.                 {

  1421.                     if (processSingle(audioIn, audioOut, cvIn, cvOut, event.time - timeOffset, timeOffset, midiEventCount))

  1422.                     {

  1423.                         startTime  = 0;

  1424.                         timeOffset = event.time;

  1425.                         midiEventCount = 0;

  1426. 

  1427.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1428.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1429.                         else

  1430.                             nextBankId = 0;

  1431.                     }

  1432.                     else

  1433.                         startTime += timeOffset;

  1434.                 }

  1435. 

  1436.                 switch (event.type)

  1437.                 {

  1438.                 case kEngineEventTypeNull:

  1439.                     break;

  1440. 

  1441.                 case kEngineEventTypeControl: {

  1442.                     const EngineControlEvent& ctrlEvent(event.ctrl);

  1443. 

  1444.                     switch (ctrlEvent.type)

  1445.                     {

  1446.                     case kEngineControlEventTypeNull:

  1447.                         break;

  1448. 

  1449.                     case kEngineControlEventTypeParameter: {

  1450. #ifndef BUILD_BRIDGE

  1451.                         // Control backend stuff

  1452.                         if (event.channel == pData->ctrlChannel)

  1453.                         {

  1454.                             float value;

  1455. 

  1456.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1457.                             {

  1458.                                 value = ctrlEvent.value;

  1459.                                 setDryWet(value, false, false);

  1460.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1461.                                 break;

  1462.                             }

  1463. 

  1464.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1465.                             {

  1466.                                 value = ctrlEvent.value*127.0f/100.0f;

  1467.                                 setVolume(value, false, false);

  1468.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1469.                                 break;

  1470.                             }

  1471. 

  1472.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1473.                             {

  1474.                                 float left, right;

  1475.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1476. 

  1477.                                 if (value < 0.0f)

  1478.                                 {

  1479.                                     left  = -1.0f;

  1480.                                     right = (value*2.0f)+1.0f;

  1481.                                 }

  1482.                                 else if (value > 0.0f)

  1483.                                 {

  1484.                                     left  = (value*2.0f)-1.0f;

  1485.                                     right = 1.0f;

  1486.                                 }

  1487.                                 else

  1488.                                 {

  1489.                                     left  = -1.0f;

  1490.                                     right = 1.0f;

  1491.                                 }

  1492. 

  1493.                                 setBalanceLeft(left, false, false);

  1494.                                 setBalanceRight(right, false, false);

  1495.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1496.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1497.                                 break;

  1498.                             }

  1499.                         }

  1500. #endif

  1501.                         // Control plugin parameters

  1502.                         uint32_t k;

  1503.                         for (k=0; k < pData->param.count; ++k)

  1504.                         {

  1505.                             if (pData->param.data[k].midiChannel != event.channel)

  1506.                                 continue;

  1507.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1508.                                 continue;

  1509.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1510.                                 continue;

  1511.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1512.                                 continue;

  1513. 

  1514.                             float value;

  1515. 

  1516.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1517.                             {

  1518.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1519.                             }

  1520.                             else

  1521.                             {

  1522.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1523. 

  1524.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1525.                                     value = std::rint(value);

  1526.                             }

  1527. 

  1528.                             setParameterValue(k, value, false, false, false);

  1529.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1530.                             break;

  1531.                         }

  1532. 

  1533.                         // check if event is already handled

  1534.                         if (k != pData->param.count)

  1535.                             break;

  1536. 

  1537.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param < MAX_MIDI_CONTROL)

  1538.                         {

  1539.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1540.                                 continue;

  1541. 

  1542.                             snd_seq_event_t& seqEvent(fMidiEvents[midiEventCount++]);

  1543. 

  1544.                             seqEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1545. 

  1546.                             seqEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1547.                             seqEvent.data.control.channel = event.channel;

  1548.                             seqEvent.data.control.param   = ctrlEvent.param;

  1549.                             seqEvent.data.control.value   = int8_t(ctrlEvent.value*127.0f);

  1550.                         }

  1551.                         break;

  1552.                     } // case kEngineControlEventTypeParameter

  1553. 

  1554.                     case kEngineControlEventTypeMidiBank:

  1555.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1556.                             nextBankId = ctrlEvent.param;

  1557.                         break;

  1558. 

  1559.                     case kEngineControlEventTypeMidiProgram:

  1560.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1561.                         {

  1562.                             const uint32_t nextProgramId = ctrlEvent.param;

  1563. 

  1564.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1565.                             {

  1566.                                 if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1567.                                 {

  1568.                                     const int32_t index(static_cast<int32_t>(k));

  1569.                                     setMidiProgram(index, false, false, false);

  1570.                                     pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, index, 0, 0.0f);

  1571.                                     break;

  1572.                                 }

  1573.                             }

  1574.                         }

  1575.                         break;

  1576. 

  1577.                     case kEngineControlEventTypeAllSoundOff:

  1578.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1579.                         {

  1580.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1581.                                 continue;

  1582. 

  1583.                             snd_seq_event_t& seqEvent(fMidiEvents[midiEventCount++]);

  1584. 

  1585.                             seqEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1586. 

  1587.                             seqEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1588.                             seqEvent.data.control.channel = event.channel;

  1589.                             seqEvent.data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1590.                         }

  1591.                         break;

  1592. 

  1593.                     case kEngineControlEventTypeAllNotesOff:

  1594.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1595.                         {

  1596. #ifndef BUILD_BRIDGE

  1597.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1598.                             {

  1599.                                 allNotesOffSent = true;

  1600.                                 sendMidiAllNotesOffToCallback();

  1601.                             }

  1602. #endif

  1603. 

  1604.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1605.                                 continue;

  1606. 

  1607.                             snd_seq_event_t& seqEvent(fMidiEvents[midiEventCount++]);

  1608. 

  1609.                             seqEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1610. 

  1611.                             seqEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1612.                             seqEvent.data.control.channel = event.channel;

  1613.                             seqEvent.data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1614.                         }

  1615.                         break;

  1616.                     } // switch (ctrlEvent.type)

  1617.                     break;

  1618.                 } // case kEngineEventTypeControl

  1619. 

  1620.                 case kEngineEventTypeMidi: {

  1621.                     if (midiEventCount >= kPluginMaxMidiEvents)

  1622.                         continue;

  1623. 

  1624.                     const EngineMidiEvent& midiEvent(event.midi);

  1625. 

  1626.                     if (midiEvent.size > EngineMidiEvent::kDataSize)

  1627.                         continue;

  1628. 

  1629.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1630. 

  1631.                     // Fix bad note-off (per DSSI spec)

  1632.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1633.                         status = MIDI_STATUS_NOTE_OFF;

  1634. 

  1635.                     snd_seq_event_t& seqEvent(fMidiEvents[midiEventCount++]);

  1636. 

  1637.                     seqEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1638. 

  1639.                     switch (status)

  1640.                     {

  1641.                     case MIDI_STATUS_NOTE_OFF: {

  1642.                         const uint8_t note = midiEvent.data[1];

  1643. 

  1644.                         seqEvent.type = SND_SEQ_EVENT_NOTEOFF;

  1645.                         seqEvent.data.note.channel = event.channel;

  1646.                         seqEvent.data.note.note    = note;

  1647. 

  1648.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, note, 0.0f);

  1649.                         break;

  1650.                     }

  1651. 

  1652.                     case MIDI_STATUS_NOTE_ON: {

  1653.                         const uint8_t note = midiEvent.data[1];

  1654.                         const uint8_t velo = midiEvent.data[2];

  1655. 

  1656.                         seqEvent.type = SND_SEQ_EVENT_NOTEON;

  1657.                         seqEvent.data.note.channel  = event.channel;

  1658.                         seqEvent.data.note.note     = note;

  1659.                         seqEvent.data.note.velocity = velo;

  1660. 

  1661.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, note, velo);

  1662.                         break;

  1663.                     }

  1664. 

  1665.                     case MIDI_STATUS_POLYPHONIC_AFTERTOUCH:

  1666.                         if (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH)

  1667.                         {

  1668.                             const uint8_t note     = midiEvent.data[1];

  1669.                             const uint8_t pressure = midiEvent.data[2];

  1670. 

  1671.                             seqEvent.type = SND_SEQ_EVENT_KEYPRESS;

  1672.                             seqEvent.data.note.channel  = event.channel;

  1673.                             seqEvent.data.note.note     = note;

  1674.                             seqEvent.data.note.velocity = pressure;

  1675.                         }

  1676.                         break;

  1677. 

  1678.                     case MIDI_STATUS_CONTROL_CHANGE:

  1679.                         if (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1680.                         {

  1681.                             const uint8_t control = midiEvent.data[1];

  1682.                             const uint8_t value   = midiEvent.data[2];

  1683. 

  1684.                             seqEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1685.                             seqEvent.data.control.channel = event.channel;

  1686.                             seqEvent.data.control.param   = control;

  1687.                             seqEvent.data.control.value   = value;

  1688.                         }

  1689.                         break;

  1690. 

  1691.                     case MIDI_STATUS_CHANNEL_PRESSURE:

  1692.                         if (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE)

  1693.                         {

  1694.                             const uint8_t pressure = midiEvent.data[1];

  1695. 

  1696.                             seqEvent.type = SND_SEQ_EVENT_CHANPRESS;

  1697.                             seqEvent.data.control.channel = event.channel;

  1698.                             seqEvent.data.control.value   = pressure;

  1699.                         }

  1700.                         break;

  1701. 

  1702.                     case MIDI_STATUS_PITCH_WHEEL_CONTROL:

  1703.                         if (pData->options & PLUGIN_OPTION_SEND_PITCHBEND)

  1704.                         {

  1705.                             const uint8_t lsb = midiEvent.data[1];

  1706.                             const uint8_t msb = midiEvent.data[2];

  1707. 

  1708.                             seqEvent.type = SND_SEQ_EVENT_PITCHBEND;

  1709.                             seqEvent.data.control.channel = event.channel;

  1710.                             seqEvent.data.control.value   = ((msb << 7) | lsb) - 8192;

  1711.                         }

  1712.                         break;

  1713. 

  1714.                     default:

  1715.                         --midiEventCount;

  1716.                         break;

  1717.                     } // switch (status)

  1718.                 } break;

  1719.                 } // switch (event.type)

  1720.             }

  1721. 

  1722.             pData->postRtEvents.trySplice();

  1723. 

  1724.             if (frames > timeOffset)

  1725.                 processSingle(audioIn, audioOut, cvIn, cvOut, frames - timeOffset, timeOffset, midiEventCount);

  1726. 

  1727.         } // End of Event Input and Processing

  1728. 

  1729.         // --------------------------------------------------------------------------------------------------------

  1730.         // Plugin processing (no events)

  1731. 

  1732.         else

  1733.         {

  1734.             processSingle(audioIn, audioOut, cvIn, cvOut, frames, 0, midiEventCount);

  1735. 

  1736.         } // End of Plugin processing (no events)

  1737. 

  1738. #ifndef BUILD_BRIDGE

  1739.         // --------------------------------------------------------------------------------------------------------

  1740.         // Latency, save values for next callback

  1741. 

  1742.         if (fLatencyIndex != -1)

  1743.         {

  1744.             if (pData->latency != static_cast<uint32_t>(fParamBuffers[fLatencyIndex]))

  1745.             {

  1746.                 fLatencyChanged = true;

  1747.             }

  1748.             else if (pData->latency > 0)

  1749.             {

  1750.                 if (pData->latency <= frames)

  1751.                 {

  1752.                     for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1753.                         FloatVectorOperations::copy(pData->latencyBuffers[i], audioIn[i]+(frames-pData->latency), static_cast<int>(pData->latency));

  1754.                 }

  1755.                 else

  1756.                 {

  1757.                     for (uint32_t i=0, j, k; i < pData->audioIn.count; ++i)

  1758.                     {

  1759.                         for (k=0; k < pData->latency-frames; ++k)

  1760.                             pData->latencyBuffers[i][k] = pData->latencyBuffers[i][k+frames];

  1761.                         for (j=0; k < pData->latency; ++j, ++k)

  1762.                             pData->latencyBuffers[i][k] = audioIn[i][j];

  1763.                     }

  1764.                 }

  1765.             }

  1766.         }

  1767. 

  1768.         // --------------------------------------------------------------------------------------------------------

  1769.         // Control Output

  1770. 

  1771.         if (pData->event.portOut != nullptr)

  1772.         {

  1773.             uint8_t  channel;

  1774.             uint16_t param;

  1775.             float    value;

  1776. 

  1777.             for (uint32_t k=0; k < pData->param.count; ++k)

  1778.             {

  1779.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1780.                     continue;

  1781. 

  1782.                 pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1783. 

  1784.                 if (pData->param.data[k].midiCC > 0)

  1785.                 {

  1786.                     channel = pData->param.data[k].midiChannel;

  1787.                     param   = static_cast<uint16_t>(pData->param.data[k].midiCC);

  1788.                     value   = pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]);

  1789.                     pData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value);

  1790.                 }

  1791.             }

  1792.         } // End of Control Output

  1793. #endif

  1794.     }

  1795. 

  1796.     bool processSingle(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames, const uint32_t timeOffset, const ulong midiEventCount)

  1797.     {

  1798.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1799. 

  1800.         if (pData->audioIn.count > 0)

  1801.         {

  1802.             CARLA_SAFE_ASSERT_RETURN(audioIn != nullptr, false);

  1803.         }

  1804.         if (pData->audioOut.count > 0)

  1805.         {

  1806.             CARLA_SAFE_ASSERT_RETURN(audioOut != nullptr, false);

  1807.         }

  1808.         if (pData->cvIn.count > 0)

  1809.         {

  1810.             CARLA_SAFE_ASSERT_RETURN(cvIn != nullptr, false);

  1811.         }

  1812.         if (pData->cvOut.count > 0)

  1813.         {

  1814.             CARLA_SAFE_ASSERT_RETURN(cvOut != nullptr, false);

  1815.         }

  1816. 

  1817.         // --------------------------------------------------------------------------------------------------------

  1818.         // Try lock, silence otherwise

  1819. 

  1820.         if (pData->engine->isOffline())

  1821.         {

  1822.             pData->singleMutex.lock();

  1823.         }

  1824.         else if (! pData->singleMutex.tryLock())

  1825.         {

  1826.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1827.             {

  1828.                 for (uint32_t k=0; k < frames; ++k)

  1829.                     audioOut[i][k+timeOffset] = 0.0f;

  1830.             }

  1831.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1832.             {

  1833.                 for (uint32_t k=0; k < frames; ++k)

  1834.                     cvOut[i][k+timeOffset] = 0.0f;

  1835.             }

  1836. 

  1837.             return false;

  1838.         }

  1839. 

  1840.         // --------------------------------------------------------------------------------------------------------

  1841.         // Set audio buffers

  1842. 

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

  1844.             FloatVectorOperations::copy(fAudioInBuffers[i], audioIn[i]+timeOffset, static_cast<int>(frames));

  1845. 

  1846.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1847.             FloatVectorOperations::clear(fAudioOutBuffers[i], static_cast<int>(frames));

  1848. 

  1849. #if 0

  1850.         // --------------------------------------------------------------------------------------------------------

  1851.         // Set CV buffers

  1852. 

  1853.         for (uint32_t i=0; i < pData->cvIn.count; ++i)

  1854.             FloatVectorOperations::copy(fCvInBuffers[i], cvIn[i]+timeOffset, static_cast<int>(frames));

  1855. 

  1856.         for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1857.             FloatVectorOperations::clear(fCvOutBuffers[i], static_cast<int>(frames));

  1858. #endif

  1859. 

  1860.         // --------------------------------------------------------------------------------------------------------

  1861.         // Run plugin

  1862. 

  1863.         // TODO - try catch

  1864. 

  1865.         if (fDssiDescriptor->run_synth != nullptr)

  1866.         {

  1867.             fDssiDescriptor->run_synth(fHandle, frames, fMidiEvents, midiEventCount);

  1868. 

  1869.             if (fHandle2 != nullptr)

  1870.                 fDssiDescriptor->run_synth(fHandle2, frames, fMidiEvents, midiEventCount);

  1871.         }

  1872.         else if (fDssiDescriptor->run_multiple_synths != nullptr)

  1873.         {

  1874.             ulong instances = (fHandle2 != nullptr) ? 2 : 1;

  1875.             LADSPA_Handle handlePtr[2] = { fHandle, fHandle2 };

  1876.             snd_seq_event_t* midiEventsPtr[2] = { fMidiEvents, fMidiEvents };

  1877.             ulong midiEventCountPtr[2] = { midiEventCount, midiEventCount };

  1878.             fDssiDescriptor->run_multiple_synths(instances, handlePtr, frames, midiEventsPtr, midiEventCountPtr);

  1879.         }

  1880.         else

  1881.         {

  1882.             fDescriptor->run(fHandle, frames);

  1883. 

  1884.             if (fHandle2 != nullptr)

  1885.                 fDescriptor->run(fHandle2, frames);

  1886.         }

  1887. 

  1888. #ifndef BUILD_BRIDGE

  1889.         // --------------------------------------------------------------------------------------------------------

  1890.         // Post-processing (dry/wet, volume and balance)

  1891. 

  1892.         {

  1893.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && ! carla_compareFloats(pData->postProc.dryWet, 1.0f);

  1894.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_compareFloats(pData->postProc.balanceLeft, -1.0f) && carla_compareFloats(pData->postProc.balanceRight, 1.0f));

  1895.             const bool isMono    = (pData->audioIn.count == 1);

  1896. 

  1897.             bool isPair;

  1898.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1899. 

  1900.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1901.             {

  1902.                 // Dry/Wet

  1903.                 if (doDryWet)

  1904.                 {

  1905.                     for (uint32_t k=0; k < frames; ++k)

  1906.                     {

  1907.                         if (k < pData->latency)

  1908.                             bufValue = pData->latencyBuffers[isMono ? 0 : i][k];

  1909.                         else if (pData->latency < frames)

  1910.                             bufValue = fAudioInBuffers[isMono ? 0 : i][k-pData->latency];

  1911.                         else

  1912.                             bufValue = fAudioInBuffers[isMono ? 0 : i][k];

  1913. 

  1914.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1915.                     }

  1916.                 }

  1917. 

  1918.                 // Balance

  1919.                 if (doBalance)

  1920.                 {

  1921.                     isPair = (i % 2 == 0);

  1922. 

  1923.                     if (isPair)

  1924.                     {

  1925.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1926.                         FloatVectorOperations::copy(oldBufLeft, fAudioOutBuffers[i], static_cast<int>(frames));

  1927.                     }

  1928. 

  1929.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1930.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1931. 

  1932.                     for (uint32_t k=0; k < frames; ++k)

  1933.                     {

  1934.                         if (isPair)

  1935.                         {

  1936.                             // left

  1937.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1938.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1939.                         }

  1940.                         else

  1941.                         {

  1942.                             // right

  1943.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1944.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1945.                         }

  1946.                     }

  1947.                 }

  1948. 

  1949.                 // Volume (and buffer copy)

  1950.                 {

  1951.                     for (uint32_t k=0; k < frames; ++k)

  1952.                         audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1953.                 }

  1954.             }

  1955. 

  1956.         } // End of Post-processing

  1957. 

  1958. #else // BUILD_BRIDGE

  1959.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1960.         {

  1961.             for (uint32_t k=0; k < frames; ++k)

  1962.                 audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1963.         }

  1964. #endif

  1965. 

  1966. #if 0

  1967.         for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1968.         {

  1969.             for (uint32_t k=0; k < frames; ++k)

  1970.                 cvOut[i][k+timeOffset] = fCvOutBuffers[i][k];

  1971.         }

  1972. #endif

  1973. 

  1974.         // --------------------------------------------------------------------------------------------------------

  1975. 

  1976.         pData->singleMutex.unlock();

  1977.         return true;

  1978.     }

  1979. 

  1980.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1981.     {

  1982.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1983.         carla_debug("CarlaPluginDSSI::bufferSizeChanged(%i) - start", newBufferSize);

  1984. 

  1985.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1986.         {

  1987.             if (fAudioInBuffers[i] != nullptr)

  1988.                 delete[] fAudioInBuffers[i];

  1989.             fAudioInBuffers[i] = new float[newBufferSize];

  1990.         }

  1991. 

  1992.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1993.         {

  1994.             if (fAudioOutBuffers[i] != nullptr)

  1995.                 delete[] fAudioOutBuffers[i];

  1996.             fAudioOutBuffers[i] = new float[newBufferSize];

  1997.         }

  1998. 

  1999.         if (fHandle2 == nullptr)

  2000.         {

  2001.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  2002.             {

  2003.                 CARLA_ASSERT(fAudioInBuffers[i] != nullptr);

  2004. 

  2005.                 try {

  2006.                     fDescriptor->connect_port(fHandle, pData->audioIn.ports[i].rindex, fAudioInBuffers[i]);

  2007.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio input");

  2008.             }

  2009. 

  2010.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  2011.             {

  2012.                 CARLA_ASSERT(fAudioOutBuffers[i] != nullptr);

  2013. 

  2014.                 try {

  2015.                     fDescriptor->connect_port(fHandle, pData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  2016.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio output");

  2017.             }

  2018.         }

  2019.         else

  2020.         {

  2021.             if (pData->audioIn.count > 0)

  2022.             {

  2023.                 CARLA_ASSERT(pData->audioIn.count == 2);

  2024.                 CARLA_ASSERT(fAudioInBuffers[0] != nullptr);

  2025.                 CARLA_ASSERT(fAudioInBuffers[1] != nullptr);

  2026. 

  2027.                 try {

  2028.                     fDescriptor->connect_port(fHandle, pData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  2029.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio input #1");

  2030. 

  2031.                 try {

  2032.                     fDescriptor->connect_port(fHandle2, pData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  2033.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio input #2");

  2034.             }

  2035. 

  2036.             if (pData->audioOut.count > 0)

  2037.             {

  2038.                 CARLA_ASSERT(pData->audioOut.count == 2);

  2039.                 CARLA_ASSERT(fAudioOutBuffers[0] != nullptr);

  2040.                 CARLA_ASSERT(fAudioOutBuffers[1] != nullptr);

  2041. 

  2042.                 try {

  2043.                     fDescriptor->connect_port(fHandle, pData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  2044.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio output #1");

  2045. 

  2046.                 try {

  2047.                     fDescriptor->connect_port(fHandle2, pData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  2048.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio output #2");

  2049.             }

  2050.         }

  2051. 

  2052.         carla_debug("CarlaPluginDSSI::bufferSizeChanged(%i) - end", newBufferSize);

  2053.     }

  2054. 

  2055.     void sampleRateChanged(const double newSampleRate) override

  2056.     {

  2057.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  2058.         carla_debug("CarlaPluginDSSI::sampleRateChanged(%g) - start", newSampleRate);

  2059. 

  2060.         // TODO

  2061.         (void)newSampleRate;

  2062. 

  2063.         carla_debug("CarlaPluginDSSI::sampleRateChanged(%g) - end", newSampleRate);

  2064.     }

  2065. 

  2066.     // -------------------------------------------------------------------

  2067.     // Plugin buffers

  2068. 

  2069.     void clearBuffers() noexcept override

  2070.     {

  2071.         carla_debug("CarlaPluginDSSI::clearBuffers() - start");

  2072. 

  2073.         if (fAudioInBuffers != nullptr)

  2074.         {

  2075.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  2076.             {

  2077.                 if (fAudioInBuffers[i] != nullptr)

  2078.                 {

  2079.                     delete[] fAudioInBuffers[i];

  2080.                     fAudioInBuffers[i] = nullptr;

  2081.                 }

  2082.             }

  2083. 

  2084.             delete[] fAudioInBuffers;

  2085.             fAudioInBuffers = nullptr;

  2086.         }

  2087. 

  2088.         if (fAudioOutBuffers != nullptr)

  2089.         {

  2090.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  2091.             {

  2092.                 if (fAudioOutBuffers[i] != nullptr)

  2093.                 {

  2094.                     delete[] fAudioOutBuffers[i];

  2095.                     fAudioOutBuffers[i] = nullptr;

  2096.                 }

  2097.             }

  2098. 

  2099.             delete[] fAudioOutBuffers;

  2100.             fAudioOutBuffers = nullptr;

  2101.         }

  2102. 

  2103.         if (fParamBuffers != nullptr)

  2104.         {

  2105.             delete[] fParamBuffers;

  2106.             fParamBuffers = nullptr;

  2107.         }

  2108. 

  2109.         CarlaPlugin::clearBuffers();

  2110. 

  2111.         carla_debug("CarlaPluginDSSI::clearBuffers() - end");

  2112.     }

  2113. 

  2114.     // -------------------------------------------------------------------

  2115.     // OSC stuff

  2116. 

  2117.     void handleOscMessage(const char* const method, const int argc, const void* const argvx, const char* const types, const lo_message msg) override

  2118.     {

  2119.         const lo_address source(lo_message_get_source(msg));

  2120.         CARLA_SAFE_ASSERT_RETURN(source != nullptr,);

  2121. 

  2122.         // protocol for DSSI UIs *must* be UDP

  2123.         CARLA_SAFE_ASSERT_RETURN(lo_address_get_protocol(source) == LO_UDP,);

  2124. 

  2125.         if (fOscData.source == nullptr)

  2126.         {

  2127.             // if no UI is registered yet only "update" message is valid

  2128.             CARLA_SAFE_ASSERT_RETURN(std::strcmp(method, "update") == 0,)

  2129.         }

  2130.         else

  2131.         {

  2132.             // make sure message source is the DSSI UI

  2133.             const char* const msghost = lo_address_get_hostname(source);

  2134.             const char* const msgport = lo_address_get_port(source);

  2135. 

  2136.             const char* const ourhost = lo_address_get_hostname(fOscData.source);

  2137.             const char* const ourport = lo_address_get_port(fOscData.source);

  2138. 

  2139.             CARLA_SAFE_ASSERT_RETURN(std::strcmp(msghost, ourhost) == 0,);

  2140.             CARLA_SAFE_ASSERT_RETURN(std::strcmp(msgport, ourport) == 0,);

  2141.         }

  2142. 

  2143.         const lo_arg* const* const argv(static_cast<const lo_arg* const* const>(argvx));

  2144. 

  2145.         if (std::strcmp(method, "configure") == 0)

  2146.             return handleOscMessageConfigure(argc, argv, types);

  2147.         if (std::strcmp(method, "control") == 0)

  2148.             return handleOscMessageControl(argc, argv, types);

  2149.         if (std::strcmp(method, "program") == 0)

  2150.             return handleOscMessageProgram(argc, argv, types);

  2151.         if (std::strcmp(method, "midi") == 0)

  2152.             return handleOscMessageMIDI(argc, argv, types);

  2153.         if (std::strcmp(method, "update") == 0)

  2154.             return handleOscMessageUpdate(argc, argv, types, lo_message_get_source(msg));

  2155.         if (std::strcmp(method, "exiting") == 0)

  2156.             return handleOscMessageExiting();

  2157. 

  2158.         carla_stdout("CarlaPluginDSSI::handleOscMessage() - unknown method '%s'", method);

  2159.     }

  2160. 

  2161.     void handleOscMessageConfigure(const int argc, const lo_arg* const* const argv, const char* const types)

  2162.     {

  2163.         carla_debug("CarlaPluginDSSI::handleMsgConfigure()");

  2164.         CARLA_PLUGIN_DSSI_OSC_CHECK_OSC_TYPES(2, "ss");

  2165. 

  2166.         const char* const key   = (const char*)&argv[0]->s;

  2167.         const char* const value = (const char*)&argv[1]->s;

  2168. 

  2169.         setCustomData(CUSTOM_DATA_TYPE_STRING, key, value, false);

  2170.     }

  2171. 

  2172.     void handleOscMessageControl(const int argc, const lo_arg* const* const argv, const char* const types)

  2173.     {

  2174.         carla_debug("CarlaPluginDSSI::handleMsgControl()");

  2175.         CARLA_PLUGIN_DSSI_OSC_CHECK_OSC_TYPES(2, "if");

  2176. 

  2177.         const int32_t rindex = argv[0]->i;

  2178.         const float   value  = argv[1]->f;

  2179. 

  2180.         setParameterValueByRealIndex(rindex, value, false, true, true);

  2181.     }

  2182. 

  2183.     void handleOscMessageProgram(const int argc, const lo_arg* const* const argv, const char* const types)

  2184.     {

  2185.         carla_debug("CarlaPluginDSSI::handleMsgProgram()");

  2186.         CARLA_PLUGIN_DSSI_OSC_CHECK_OSC_TYPES(2, "ii");

  2187. 

  2188.         const int32_t bank    = argv[0]->i;

  2189.         const int32_t program = argv[1]->i;

  2190. 

  2191.         CARLA_SAFE_ASSERT_RETURN(bank >= 0,);

  2192.         CARLA_SAFE_ASSERT_RETURN(program >= 0,);

  2193. 

  2194.         setMidiProgramById(static_cast<uint32_t>(bank), static_cast<uint32_t>(program), false, true, true);

  2195.     }

  2196. 

  2197.     void handleOscMessageMIDI(const int argc, const lo_arg* const* const argv, const char* const types)

  2198.     {

  2199.         carla_debug("CarlaPluginDSSI::handleMsgMidi()");

  2200.         CARLA_PLUGIN_DSSI_OSC_CHECK_OSC_TYPES(1, "m");

  2201. 

  2202.         if (getMidiInCount() == 0)

  2203.         {

  2204.             carla_stderr("CarlaPluginDSSI::handleMsgMidi() - received midi when plugin has no midi inputs");

  2205.             return;

  2206.         }

  2207. 

  2208. #ifndef BUILD_BRIDGE

  2209.         const uint8_t* const data = argv[0]->m;

  2210.         uint8_t status  = data[1];

  2211.         uint8_t channel = status & 0x0F;

  2212. 

  2213.         // Fix bad note-off

  2214.         if (MIDI_IS_STATUS_NOTE_ON(status) && data[3] == 0)

  2215.             status = MIDI_STATUS_NOTE_OFF;

  2216. 

  2217.         if (MIDI_IS_STATUS_NOTE_OFF(status))

  2218.         {

  2219.             const uint8_t note = data[2];

  2220. 

  2221.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2222. 

  2223.             sendMidiSingleNote(channel, note, 0, false, true, true);

  2224.         }

  2225.         else if (MIDI_IS_STATUS_NOTE_ON(status))

  2226.         {

  2227.             const uint8_t note = data[2];

  2228.             const uint8_t velo = data[3];

  2229. 

  2230.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2231.             CARLA_SAFE_ASSERT_RETURN(velo < MAX_MIDI_VALUE,);

  2232. 

  2233.             sendMidiSingleNote(channel, note, velo, false, true, true);

  2234.         }

  2235. #endif

  2236.     }

  2237. 

  2238.     void handleOscMessageUpdate(const int argc, const lo_arg* const* const argv, const char* const types, const lo_address source)

  2239.     {

  2240.         carla_debug("CarlaPluginDSSI::handleMsgUpdate()");

  2241.         CARLA_PLUGIN_DSSI_OSC_CHECK_OSC_TYPES(1, "s");

  2242. 

  2243.         const char* const url = (const char*)&argv[0]->s;

  2244. 

  2245.         // FIXME - remove debug prints later

  2246.         carla_stdout("CarlaPluginDSSI::updateOscData(%p, \"%s\")", source, url);

  2247. 

  2248.         fOscData.clear();

  2249. 

  2250.         const int proto = lo_address_get_protocol(source);

  2251. 

  2252.         {

  2253.             const char* host = lo_address_get_hostname(source);

  2254.             const char* port = lo_address_get_port(source);

  2255.             fOscData.source = lo_address_new_with_proto(proto, host, port);

  2256. 

  2257.             carla_stdout("CarlaPlugin::updateOscData() - source: host \"%s\", port \"%s\"", host, port);

  2258.         }

  2259. 

  2260.         {

  2261.             char* host = lo_url_get_hostname(url);

  2262.             char* port = lo_url_get_port(url);

  2263.             fOscData.path   = carla_strdup_free(lo_url_get_path(url));

  2264.             fOscData.target = lo_address_new_with_proto(proto, host, port);

  2265.             carla_stdout("CarlaPlugin::updateOscData() - target: host \"%s\", port \"%s\", path \"%s\"", host, port, fOscData.path);

  2266. 

  2267.             std::free(host);

  2268.             std::free(port);

  2269.         }

  2270. 

  2271.         osc_send_sample_rate(fOscData, static_cast<float>(pData->engine->getSampleRate()));

  2272. 

  2273.         for (LinkedList<CustomData>::Itenerator it = pData->custom.begin(); it.valid(); it.next())

  2274.         {

  2275.             const CustomData& customData(it.getValue(kCustomDataFallback));

  2276.             CARLA_SAFE_ASSERT_CONTINUE(customData.isValid());

  2277. 

  2278.             if (std::strcmp(customData.type, CUSTOM_DATA_TYPE_STRING) == 0)

  2279.                 osc_send_configure(fOscData, customData.key, customData.value);

  2280.         }

  2281. 

  2282.         if (pData->prog.current >= 0)

  2283.             osc_send_program(fOscData, static_cast<uint32_t>(pData->prog.current));

  2284. 

  2285.         if (pData->midiprog.current >= 0)

  2286.         {

  2287.             const MidiProgramData& curMidiProg(pData->midiprog.getCurrent());

  2288. 

  2289.             if (getType() == PLUGIN_DSSI)

  2290.                 osc_send_program(fOscData, curMidiProg.bank, curMidiProg.program);

  2291.             else

  2292.                 osc_send_midi_program(fOscData, curMidiProg.bank, curMidiProg.program);

  2293.         }

  2294. 

  2295.         for (uint32_t i=0; i < pData->param.count; ++i)

  2296.             osc_send_control(fOscData, pData->param.data[i].rindex, getParameterValue(i));

  2297. 

  2298.         if ((pData->hints & PLUGIN_HAS_CUSTOM_UI) != 0 && pData->engine->getOptions().frontendWinId != 0)

  2299.             pData->transientTryCounter = 1;

  2300. 

  2301.         carla_stdout("CarlaPluginDSSI::updateOscData() - done");

  2302.     }

  2303. 

  2304.     void handleOscMessageExiting()

  2305.     {

  2306.         carla_debug("CarlaPluginDSSI::handleMsgExiting()");

  2307. 

  2308.         // hide UI

  2309.         showCustomUI(false);

  2310. 

  2311.         // tell frontend

  2312.         pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2313.     }

  2314. 

  2315.     // -------------------------------------------------------------------

  2316.     // Post-poned UI Stuff

  2317. 

  2318.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  2319.     {

  2320.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  2321. 

  2322.         if (fOscData.target == nullptr)

  2323.             return;

  2324. 

  2325.         osc_send_control(fOscData, pData->param.data[index].rindex, value);

  2326.     }

  2327. 

  2328.     void uiMidiProgramChange(const uint32_t index) noexcept override

  2329.     {

  2330.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  2331. 

  2332.         if (fOscData.target == nullptr)

  2333.             return;

  2334. 

  2335.         osc_send_program(fOscData, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  2336.     }

  2337. 

  2338.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  2339.     {

  2340.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  2341.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2342.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  2343. 

  2344.         if (fOscData.target == nullptr)

  2345.             return;

  2346. 

  2347. #if 0

  2348.         uint8_t midiData[4];

  2349.         midiData[0] = 0;

  2350.         midiData[1] = uint8_t(MIDI_STATUS_NOTE_ON | (channel & MIDI_CHANNEL_BIT));

  2351.         midiData[2] = note;

  2352.         midiData[3] = velo;

  2353. 

  2354.         osc_send_midi(fOscData, midiData);

  2355. #endif

  2356.     }

  2357. 

  2358.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  2359.     {

  2360.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  2361.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2362. 

  2363.         if (fOscData.target == nullptr)

  2364.             return;

  2365. 

  2366. #if 0

  2367.         uint8_t midiData[4];

  2368.         midiData[0] = 0;

  2369.         midiData[1] = uint8_t(MIDI_STATUS_NOTE_ON | (channel & MIDI_CHANNEL_BIT));

  2370.         midiData[2] = note;

  2371.         midiData[3] = 0;

  2372. 

  2373.         osc_send_midi(fOscData, midiData);

  2374. #endif

  2375.     }

  2376. 

  2377.     // -------------------------------------------------------------------

  2378. 

  2379.     void* getNativeHandle() const noexcept override

  2380.     {

  2381.         return fHandle;

  2382.     }

  2383. 

  2384.     const void* getNativeDescriptor() const noexcept override

  2385.     {

  2386.         return fDssiDescriptor;

  2387.     }

  2388. 

  2389.     uintptr_t getUiBridgeProcessId() const noexcept override

  2390.     {

  2391.         return fThreadUI.getProcessPID();

  2392.     }

  2393. 

  2394.     const void* getExtraStuff() const noexcept override

  2395.     {

  2396.         return fUiFilename;

  2397.     }

  2398. 

  2399.     // -------------------------------------------------------------------

  2400. 

  2401.     bool init(const char* const filename, const char* const name, const char* const label)

  2402.     {

  2403.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2404. 

  2405.         // ---------------------------------------------------------------

  2406.         // first checks

  2407. 

  2408.         if (pData->client != nullptr)

  2409.         {

  2410.             pData->engine->setLastError("Plugin client is already registered");

  2411.             return false;

  2412.         }

  2413. 

  2414.         if (filename == nullptr || filename[0] == '\0')

  2415.         {

  2416.             pData->engine->setLastError("null filename");

  2417.             return false;

  2418.         }

  2419. 

  2420.         if (label == nullptr || label[0] == '\0')

  2421.         {

  2422.             pData->engine->setLastError("null label");

  2423.             return false;

  2424.         }

  2425. 

  2426.         // ---------------------------------------------------------------

  2427.         // open DLL

  2428. 

  2429.         if (! pData->libOpen(filename))

  2430.         {

  2431.             pData->engine->setLastError(pData->libError(filename));

  2432.             return false;

  2433.         }

  2434. 

  2435.         // ---------------------------------------------------------------

  2436.         // get DLL main entry

  2437. 

  2438.         const DSSI_Descriptor_Function descFn = pData->libSymbol<DSSI_Descriptor_Function>("dssi_descriptor");

  2439. 

  2440.         if (descFn == nullptr)

  2441.         {

  2442.             pData->engine->setLastError("Could not find the DSSI Descriptor in the plugin library");

  2443.             return false;

  2444.         }

  2445. 

  2446.         // ---------------------------------------------------------------

  2447.         // get descriptor that matches label

  2448. 

  2449.         ulong i = 0;

  2450. 

  2451.         for (;;)

  2452.         {

  2453.             try {

  2454.                 fDssiDescriptor = descFn(i++);

  2455.             }

  2456.             catch(...) {

  2457.                 carla_stderr2("Caught exception when trying to get LADSPA descriptor");

  2458.                 fDescriptor     = nullptr;

  2459.                 fDssiDescriptor = nullptr;

  2460.                 break;

  2461.             }

  2462. 

  2463.             if (fDssiDescriptor == nullptr)

  2464.                 break;

  2465. 

  2466.             fDescriptor = fDssiDescriptor->LADSPA_Plugin;

  2467. 

  2468.             if (fDescriptor == nullptr)

  2469.             {

  2470.                 carla_stderr2("WARNING - Missing LADSPA interface, will not use this plugin");

  2471.                 fDssiDescriptor = nullptr;

  2472.                 break;

  2473.             }

  2474.             if (fDescriptor->Label == nullptr || fDescriptor->Label[0] == '\0')

  2475.             {

  2476.                 carla_stderr2("WARNING - Got an invalid label, will not use this plugin");

  2477.                 fDescriptor     = nullptr;

  2478.                 fDssiDescriptor = nullptr;

  2479.                 break;

  2480.             }

  2481.             if (fDescriptor->run == nullptr)

  2482.             {

  2483.                 carla_stderr2("WARNING - Plugin has no run, cannot use it");

  2484.                 fDescriptor     = nullptr;

  2485.                 fDssiDescriptor = nullptr;

  2486.                 break;

  2487.             }

  2488. 

  2489.             if (std::strcmp(fDescriptor->Label, label) == 0)

  2490.                 break;

  2491.         }

  2492. 

  2493.         if (fDescriptor == nullptr || fDssiDescriptor == nullptr)

  2494.         {

  2495.             pData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  2496.             return false;

  2497.         }

  2498. 

  2499.         // ---------------------------------------------------------------

  2500.         // check if uses global instance

  2501. 

  2502.         if (fDssiDescriptor->run_synth == nullptr && fDssiDescriptor->run_multiple_synths != nullptr)

  2503.         {

  2504.             if (! addUniqueMultiSynth(fDescriptor->Label))

  2505.             {

  2506.                 pData->engine->setLastError("This plugin uses a global instance and can't be used more than once safely");

  2507.                 return false;

  2508.             }

  2509.         }

  2510. 

  2511.         // ---------------------------------------------------------------

  2512.         // get info

  2513. 

  2514.         if (name != nullptr && name[0] != '\0')

  2515.             pData->name = pData->engine->getUniquePluginName(name);

  2516.         else if (fDescriptor->Name != nullptr && fDescriptor->Name[0] != '\0')

  2517.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Name);

  2518.         else

  2519.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Label);

  2520. 

  2521.         pData->filename = carla_strdup(filename);

  2522. 

  2523.         // ---------------------------------------------------------------

  2524.         // register client

  2525. 

  2526.         pData->client = pData->engine->addClient(this);

  2527. 

  2528.         if (pData->client == nullptr || ! pData->client->isOk())

  2529.         {

  2530.             pData->engine->setLastError("Failed to register plugin client");

  2531.             return false;

  2532.         }

  2533. 

  2534.         // ---------------------------------------------------------------

  2535.         // initialize plugin

  2536. 

  2537.         try {

  2538.             fHandle = fDescriptor->instantiate(fDescriptor, (ulong)pData->engine->getSampleRate());

  2539.         } CARLA_SAFE_EXCEPTION("DSSI instantiate");

  2540. 

  2541.         if (fHandle == nullptr)

  2542.         {

  2543.             pData->engine->setLastError("Plugin failed to initialize");

  2544.             return false;

  2545.         }

  2546. 

  2547.         // ---------------------------------------------------------------

  2548.         // check for custom data extension

  2549. 

  2550.         if (fDssiDescriptor->configure != nullptr)

  2551.         {

  2552.             if (char* const error = fDssiDescriptor->configure(fHandle, DSSI_CUSTOMDATA_EXTENSION_KEY, ""))

  2553.             {

  2554.                 if (std::strcmp(error, "true") == 0 && fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->set_custom_data != nullptr)

  2555.                     fUsesCustomData = true;

  2556. 

  2557.                 std::free(error);

  2558.             }

  2559.         }

  2560. 

  2561.         // ---------------------------------------------------------------

  2562.         // gui stuff

  2563. 

  2564.         if (const char* const guiFilename = find_dssi_ui(filename, fDescriptor->Label))

  2565.         {

  2566.             fThreadUI.setData(guiFilename, fDescriptor->Label);

  2567.             fUiFilename = guiFilename;

  2568.         }

  2569. 

  2570.         // ---------------------------------------------------------------

  2571.         // set default options

  2572. 

  2573. #ifdef __USE_GNU

  2574.         const bool isDssiVst(strcasestr(pData->filename, "dssi-vst") != nullptr);

  2575. #else

  2576.         const bool isDssiVst(std::strstr(pData->filename, "dssi-vst") != nullptr);

  2577. #endif

  2578. 

  2579.         pData->options = 0x0;

  2580. 

  2581.         if (fLatencyIndex >= 0 || isDssiVst)

  2582.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2583. 

  2584.         if (pData->engine->getOptions().forceStereo)

  2585.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2586. 

  2587.         if (fUsesCustomData)

  2588.             pData->options |= PLUGIN_OPTION_USE_CHUNKS;

  2589. 

  2590.         if (fDssiDescriptor->get_program != nullptr && fDssiDescriptor->select_program != nullptr)

  2591.             pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  2592. 

  2593.         if (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr)

  2594.         {

  2595.             pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  2596.             pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  2597.             pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  2598.             pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  2599. 

  2600.             if (fDssiDescriptor->run_synth == nullptr)

  2601.                 carla_stderr("WARNING: Plugin can ONLY use run_multiple_synths!");

  2602.         }

  2603. 

  2604.         return true;

  2605.     }

  2606. 

  2607.     // -------------------------------------------------------------------

  2608. 

  2609. private:

  2610.     LADSPA_Handle fHandle;

  2611.     LADSPA_Handle fHandle2;

  2612.     const LADSPA_Descriptor* fDescriptor;

  2613.     const DSSI_Descriptor*   fDssiDescriptor;

  2614. 

  2615.     bool fUsesCustomData;

  2616.     const char* fUiFilename;

  2617. 

  2618.     float** fAudioInBuffers;

  2619.     float** fAudioOutBuffers;

  2620.     float*  fParamBuffers;

  2621. 

  2622.     bool    fLatencyChanged;

  2623.     int32_t fLatencyIndex; // -1 if invalid

  2624. 

  2625.     snd_seq_event_t fMidiEvents[kPluginMaxMidiEvents];

  2626. 

  2627.     CarlaOscData      fOscData;

  2628.     CarlaThreadDSSIUI fThreadUI;

  2629. 

  2630.     // -------------------------------------------------------------------

  2631. 

  2632.     uint32_t getSafePortCount() const noexcept

  2633.     {

  2634.         if (fDescriptor->PortCount == 0)

  2635.             return 0;

  2636. 

  2637.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortDescriptors != nullptr, 0);

  2638.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortRangeHints != nullptr, 0);

  2639.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortNames != nullptr, 0);

  2640. 

  2641.         return static_cast<uint32_t>(fDescriptor->PortCount);

  2642.     }

  2643. 

  2644.     bool getSeparatedParameterNameOrUnit(const char* const paramName, char* const strBuf, const bool wantName) const noexcept

  2645.     {

  2646.         if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, true))

  2647.             return true;

  2648.         if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, false))

  2649.             return true;

  2650.         return false;

  2651.     }

  2652. 

  2653.     bool _getSeparatedParameterNameOrUnitImpl(const char* const paramName, char* const strBuf, const bool wantName, const bool useBracket) const noexcept

  2654.     {

  2655.         const char* const sepBracketStart(std::strstr(paramName, useBracket ? " [" : " ("));

  2656. 

  2657.         if (sepBracketStart == nullptr)

  2658.             return false;

  2659. 

  2660.         const char* const sepBracketEnd(std::strstr(sepBracketStart, useBracket ? "]" : ")"));

  2661. 

  2662.         if (sepBracketEnd == nullptr)

  2663.             return false;

  2664. 

  2665.         const size_t unitSize(static_cast<size_t>(sepBracketEnd-sepBracketStart-2));

  2666. 

  2667.         if (unitSize > 7) // very unlikely to have such big unit

  2668.             return false;

  2669. 

  2670.         const size_t sepIndex(std::strlen(paramName)-unitSize-3);

  2671. 

  2672.         // just in case

  2673.         if (sepIndex > STR_MAX)

  2674.             return false;

  2675. 

  2676.         if (wantName)

  2677.         {

  2678.             std::strncpy(strBuf, paramName, sepIndex);

  2679.             strBuf[sepIndex] = '\0';

  2680.         }

  2681.         else

  2682.         {

  2683.             std::strncpy(strBuf, paramName+(sepIndex+2), unitSize);

  2684.             strBuf[unitSize] = '\0';

  2685.         }

  2686. 

  2687.         return true;

  2688.     }

  2689. 

  2690.     // -------------------------------------------------------------------

  2691. 

  2692.     static LinkedList<const char*> sMultiSynthList;

  2693. 

  2694.     static bool addUniqueMultiSynth(const char* const label) noexcept

  2695.     {

  2696.         CARLA_SAFE_ASSERT_RETURN(label != nullptr && label[0] != '\0', false);

  2697. 

  2698.         const char* dlabel = nullptr;

  2699. 

  2700.         try {

  2701.             dlabel = carla_strdup(label);

  2702.         } catch(...) { return false; }

  2703. 

  2704.         for (LinkedList<const char*>::Itenerator it = sMultiSynthList.begin(); it.valid(); it.next())

  2705.         {

  2706.             const char* const itLabel(it.getValue());

  2707. 

  2708.             if (std::strcmp(dlabel, itLabel) == 0)

  2709.             {

  2710.                 delete[] dlabel;

  2711.                 return false;

  2712.             }

  2713.         }

  2714. 

  2715.         return sMultiSynthList.append(dlabel);

  2716.     }

  2717. 

  2718.     static void removeUniqueMultiSynth(const char* const label) noexcept

  2719.     {

  2720.         CARLA_SAFE_ASSERT_RETURN(label != nullptr && label[0] != '\0',);

  2721. 

  2722.         for (LinkedList<const char*>::Itenerator it = sMultiSynthList.begin(); it.valid(); it.next())

  2723.         {

  2724.             const char* const itLabel(it.getValue());

  2725. 

  2726.             if (std::strcmp(label, itLabel) == 0)

  2727.             {

  2728.                 sMultiSynthList.remove(it);

  2729.                 delete[] itLabel;

  2730.                 break;

  2731.             }

  2732.         }

  2733.     }

  2734. 

  2735.     // -------------------------------------------------------------------

  2736. 

  2737.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginDSSI)

  2738. };

  2739. 

  2740. LinkedList<const char*> CarlaPluginDSSI::sMultiSynthList;

  2741. 

  2742. // -------------------------------------------------------------------------------------------------------------------

  2743. 

  2744. CarlaPlugin* CarlaPlugin::newDSSI(const Initializer& init)

  2745. {

  2746.     carla_debug("CarlaPlugin::newDSSI({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "})", init.engine, init.filename, init.name, init.label, init.uniqueId);

  2747. 

  2748.     CarlaPluginDSSI* const plugin(new CarlaPluginDSSI(init.engine, init.id));

  2749. 

  2750.     if (! plugin->init(init.filename, init.name, init.label))

  2751.     {

  2752.         delete plugin;

  2753.         return nullptr;

  2754.     }

  2755. 

  2756.     plugin->reload();

  2757. 

  2758.     bool canRun = true;

  2759. 

  2760.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK)

  2761.     {

  2762.         if (! plugin->canRunInRack())

  2763.         {

  2764.             init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo DSSI plugins, sorry!");

  2765.             canRun = false;

  2766.         }

  2767.         else if (plugin->getCVInCount() > 0 || plugin->getCVInCount() > 0)

  2768.         {

  2769.             init.engine->setLastError("Carla's rack mode cannot work with plugins that have CV ports, sorry!");

  2770.             canRun = false;

  2771.         }

  2772.     }

  2773.     else if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_PATCHBAY && (plugin->getCVInCount() > 0 || plugin->getCVInCount() > 0))

  2774.     {

  2775.         init.engine->setLastError("CV ports in patchbay mode is still TODO");

  2776.         canRun = false;

  2777.     }

  2778. 

  2779.     if (! canRun)

  2780.     {

  2781.         delete plugin;

  2782.         return nullptr;

  2783.     }

  2784. 

  2785.     return plugin;

  2786. }

  2787. 

  2788. // -------------------------------------------------------------------------------------------------------------------

  2789. 

  2790. CARLA_BACKEND_END_NAMESPACE