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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 "CarlaEngineUtils.hpp"

  23. 

  24. #include "CarlaDssiUtils.hpp"

  25. #include "CarlaMathUtils.hpp"

  26. 

  27. #ifdef HAVE_LIBLO

  28. # include "CarlaOscUtils.hpp"

  29. # include "CarlaPipeUtils.hpp"

  30. # include "CarlaThread.hpp"

  31. #endif

  32. 

  33. using juce::ChildProcess;

  34. using juce::ScopedPointer;

  35. using juce::String;

  36. using juce::StringArray;

  37. 

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

  39.     /* check argument count */                                                                                                  \

  40.     if (argc != argcToCompare)                                                                                                  \

  41.     {                                                                                                                           \

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

  43.         return;                                                                                                                 \

  44.     }                                                                                                                           \

  45.     if (argc > 0)                                                                                                               \

  46.     {                                                                                                                           \

  47.         /* check for nullness */                                                                                                \

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

  49.         {                                                                                                                       \

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

  51.             return;                                                                                                             \

  52.         }                                                                                                                       \

  53.         /* check argument types */                                                                                              \

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

  55.         {                                                                                                                       \

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

  57.             return;                                                                                                             \

  58.         }                                                                                                                       \

  59.     }

  60. 

  61. CARLA_BACKEND_START_NAMESPACE

  62. 

  63. #if 0

  64. // -------------------------------------------------------------------

  65. // Fallback data

  66. 

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

  68. 

  69. #ifdef HAVE_LIBLO

  70. // -------------------------------------------------------------------

  71. 

  72. class CarlaThreadDSSIUI : public CarlaThread

  73. {

  74. public:

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

  76.         : CarlaThread("CarlaThreadDSSIUI"),

  77.           kEngine(engine),

  78.           kPlugin(plugin),

  79.           fBinary(),

  80.           fLabel(),

  81.           fOscData(oscData),

  82.           fProcess(),

  83.           leakDetector_CarlaThreadDSSIUI() {}

  84. 

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

  86.     {

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

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

  89.         CARLA_SAFE_ASSERT(! isThreadRunning());

  90. 

  91.         fBinary = binary;

  92.         fLabel  = label;

  93. 

  94.         if (fLabel.isEmpty())

  95.             fLabel = "\"\"";

  96.     }

  97. 

  98.     uintptr_t getProcessPID() const noexcept

  99.     {

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

  101. 

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

  103.     }

  104. 

  105.     void run()

  106.     {

  107.         if (fProcess == nullptr)

  108.         {

  109.             fProcess = new ChildProcess();

  110.         }

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

  112.         {

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

  114. 

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

  116.             fProcess->kill();

  117.             fProcess = nullptr;

  118.             return;

  119.         }

  120. 

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

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

  123. 

  124.         if (name.isEmpty())

  125.             name = "(none)";

  126. 

  127.         if (filename.isEmpty())

  128.             filename = "\"\"";

  129. 

  130.         StringArray arguments;

  131. 

  132.         // binary

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

  134. 

  135.         // osc-url

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

  137. 

  138.         // filename

  139.         arguments.add(filename);

  140. 

  141.         // label

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

  143. 

  144.         // ui-title

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

  146. 

  147.         bool started;

  148. 

  149.         {

  150. #ifdef CARLA_OS_LINUX

  151.             /*

  152.              * If the frontend uses winId parent, set LD_PRELOAD to auto-map the DSSI UI.

  153.              * If not, unset LD_PRELOAD.

  154.              */

  155.             const uintptr_t winId(kEngine->getOptions().frontendWinId);

  156. 

  157.             // for CARLA_ENGINE_OPTION_FRONTEND_WIN_ID

  158.             char winIdStr[STR_MAX+1];

  159.             winIdStr[STR_MAX] = '\0';

  160. 

  161.             // for LD_PRELOAD

  162.             CarlaString ldPreloadValue;

  163. 

  164.             if (winId != 0)

  165.             {

  166.                 std::snprintf(winIdStr, STR_MAX, P_UINTPTR, kEngine->getOptions().frontendWinId);

  167.                 ldPreloadValue = (CarlaString(kEngine->getOptions().binaryDir) + CARLA_OS_SEP_STR "libcarla_interposer-x11.so");

  168.             }

  169. 

  170.             const ScopedEngineEnvironmentLocker _seel(kEngine);

  171.             const ScopedEnvVar _sev1("CARLA_ENGINE_OPTION_FRONTEND_WIN_ID", winIdStr[0] != '\0' ? winIdStr : nullptr);

  172.             const ScopedEnvVar _sev2("LD_PRELOAD", ldPreloadValue.isNotEmpty() ? ldPreloadValue.buffer() : nullptr);

  173. #endif // CARLA_OS_LINUX

  174. 

  175.             // start the DSSI UI application

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

  177.             started = fProcess->start(arguments);

  178.         }

  179. 

  180.         if (! started)

  181.         {

  182.             carla_stdout("failed!");

  183.             fProcess = nullptr;

  184.             return;

  185.         }

  186. 

  187.         if (waitForOscGuiShow())

  188.         {

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

  190.                 carla_sleep(1);

  191. 

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

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

  194.             {

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

  196. 

  197.                 if (fProcess->isRunning())

  198.                 {

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

  200.                     fProcess->kill();

  201.                 }

  202.                 else

  203.                 {

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

  205.                 }

  206.             }

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

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

  209.             else

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

  211. 

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

  213.         }

  214.         else

  215.         {

  216.             fProcess->kill();

  217. 

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

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

  220.         }

  221. 

  222.         carla_stdout("DSSI UI finished");

  223.         fProcess = nullptr;

  224.     }

  225. 

  226. private:

  227.     CarlaEngine* const kEngine;

  228.     CarlaPlugin* const kPlugin;

  229. 

  230.     CarlaString fBinary;

  231.     CarlaString fLabel;

  232. 

  233.     const CarlaOscData&         fOscData;

  234.     ScopedPointer<ChildProcess> fProcess;

  235. 

  236.     bool waitForOscGuiShow()

  237.     {

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

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

  240. 

  241.         // wait for UI 'update' call

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

  243.         {

  244.             if (fOscData.target != nullptr)

  245.             {

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

  247.                 osc_send_show(fOscData);

  248.                 return true;

  249.             }

  250. 

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

  252.                 carla_msleep(100);

  253.             else

  254.                 return false;

  255.         }

  256. 

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

  258.         return false;

  259.     }

  260. 

  261.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaThreadDSSIUI)

  262. };

  263. #endif

  264. 

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

  266. 

  267. class CarlaPluginDSSI : public CarlaPlugin

  268. {

  269. public:

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

  271.         : CarlaPlugin(engine, id),

  272.           fHandle(nullptr),

  273.           fHandle2(nullptr),

  274.           fDescriptor(nullptr),

  275.           fDssiDescriptor(nullptr),

  276.           fUsesCustomData(false),

  277. #ifdef HAVE_LIBLO

  278.           fUiFilename(nullptr),

  279. #endif

  280.           fAudioInBuffers(nullptr),

  281.           fAudioOutBuffers(nullptr),

  282.           fParamBuffers(nullptr),

  283.           fLatencyChanged(false),

  284.           fLatencyIndex(-1),

  285. #ifdef HAVE_LIBLO

  286.           fOscData(),

  287.           fThreadUI(engine, this, fOscData),

  288. #endif

  289.           leakDetector_CarlaPluginDSSI()

  290.     {

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

  292.     }

  293. 

  294.     ~CarlaPluginDSSI() noexcept override

  295.     {

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

  297. 

  298. #ifdef HAVE_LIBLO

  299.         // close UI

  300.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  301.         {

  302.             showCustomUI(false);

  303. 

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

  305.         }

  306. #endif

  307. 

  308.         pData->singleMutex.lock();

  309.         pData->masterMutex.lock();

  310. 

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

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

  313. 

  314.         if (pData->active)

  315.         {

  316.             deactivate();

  317.             pData->active = false;

  318.         }

  319. 

  320.         if (fDescriptor != nullptr)

  321.         {

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

  323.                 removeUniqueMultiSynth(fDescriptor->Label);

  324. 

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

  326.             {

  327.                 if (fHandle != nullptr)

  328.                 {

  329.                     try {

  330.                         fDescriptor->cleanup(fHandle);

  331.                     } CARLA_SAFE_EXCEPTION("DSSI cleanup");

  332.                 }

  333. 

  334.                 if (fHandle2 != nullptr)

  335.                 {

  336.                     try {

  337.                         fDescriptor->cleanup(fHandle2);

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

  339.                 }

  340.             }

  341. 

  342.             fHandle  = nullptr;

  343.             fHandle2 = nullptr;

  344.             fDescriptor = nullptr;

  345.             fDssiDescriptor = nullptr;

  346.         }

  347. 

  348. #ifdef HAVE_LIBLO

  349.         if (fUiFilename != nullptr)

  350.         {

  351.             delete[] fUiFilename;

  352.             fUiFilename = nullptr;

  353.         }

  354. #endif

  355. 

  356.         clearBuffers();

  357.     }

  358. 

  359.     // -------------------------------------------------------------------

  360.     // Information (base)

  361. 

  362.     PluginType getType() const noexcept override

  363.     {

  364.         return PLUGIN_DSSI;

  365.     }

  366. 

  367.     PluginCategory getCategory() const noexcept override

  368.     {

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

  370. 

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

  372.             return PLUGIN_CATEGORY_SYNTH;

  373. 

  374.         return CarlaPlugin::getCategory();

  375.     }

  376. 

  377.     int64_t getUniqueId() const noexcept override

  378.     {

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

  380. 

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

  382.     }

  383. 

  384.     // -------------------------------------------------------------------

  385.     // Information (count)

  386. 

  387.     // nothing

  388. 

  389.     // -------------------------------------------------------------------

  390.     // Information (current data)

  391. 

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

  393.     {

  394.         CARLA_SAFE_ASSERT_RETURN(fUsesCustomData, 0);

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

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

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

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

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

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

  401. 

  402.         *dataPtr = nullptr;

  403. 

  404.         int ret = 0;

  405.         ulong dataSize = 0;

  406. 

  407.         try {

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

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

  410. 

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

  412.     }

  413. 

  414.     // -------------------------------------------------------------------

  415.     // Information (per-plugin data)

  416. 

  417.     uint getOptionsAvailable() const noexcept override

  418.     {

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

  420. 

  421. #ifdef __USE_GNU

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

  423. #else

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

  425. #endif

  426. 

  427.         uint options = 0x0;

  428. 

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

  430.             options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  431. 

  432.         if (! isDssiVst)

  433.         {

  434.             if (fLatencyIndex == -1)

  435.                 options |= PLUGIN_OPTION_FIXED_BUFFERS;

  436. 

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

  438.             {

  439.                 if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  440.                     options |= PLUGIN_OPTION_FORCE_STEREO;

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

  442.                     options |= PLUGIN_OPTION_FORCE_STEREO;

  443.             }

  444.         }

  445. 

  446.         if (fUsesCustomData)

  447.             options |= PLUGIN_OPTION_USE_CHUNKS;

  448. 

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

  450.         {

  451.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  452.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  453.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  454.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

  455.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  456.         }

  457. 

  458.         return options;

  459.     }

  460. 

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

  462.     {

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

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

  465. 

  466.         return fParamBuffers[parameterId];

  467.     }

  468. 

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

  470.     {

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

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

  473. 

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

  475.     }

  476. 

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

  478.     {

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

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

  481. 

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

  483.     }

  484. 

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

  486.     {

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

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

  489. 

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

  491.     }

  492. 

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

  494.     {

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

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

  497. 

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

  499.     }

  500. 

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

  502.     {

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

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

  505. 

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

  507. 

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

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

  510. 

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

  512.             return;

  513. 

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

  515.     }

  516. 

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

  518.     {

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

  520. 

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

  522. 

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

  524. 

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

  526.             return;

  527. 

  528.         nullStrBuf(strBuf);

  529.     }

  530. 

  531.     // -------------------------------------------------------------------

  532.     // Set data (state)

  533. 

  534.     // nothing

  535. 

  536.     // -------------------------------------------------------------------

  537.     // Set data (internal stuff)

  538. 

  539.     void setId(const uint newId) noexcept

  540.     {

  541.         CarlaPlugin::setId(newId);

  542. 

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

  544.         // FIXME - must be RT safe

  545.         showCustomUI(false);

  546.     }

  547. 

  548.     // -------------------------------------------------------------------

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

  550. 

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

  552.     {

  553.         CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr,);

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

  555. 

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

  557.         fParamBuffers[parameterId] = fixedValue;

  558. 

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

  560.     }

  561. 

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

  563.     {

  564.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  565.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

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

  568.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

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

  570. 

  571.         if (std::strcmp(type, CUSTOM_DATA_TYPE_PROPERTY) == 0)

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

  573. 

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

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

  576. 

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

  578.         {

  579.             try {

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

  581.             } catch(...) {}

  582. 

  583.             if (fHandle2 != nullptr)

  584.             {

  585.                 try {

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

  587.                 } catch(...) {}

  588.             }

  589.         }

  590. 

  591. #ifdef HAVE_LIBLO

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

  593.             osc_send_configure(fOscData, key, value);

  594. #endif

  595. 

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

  597.         {

  598.             const ScopedSingleProcessLocker spl(this, true);

  599.             reloadPrograms(false);

  600.         }

  601. 

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

  603.     }

  604. 

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

  606.     {

  607.         CARLA_SAFE_ASSERT_RETURN(fUsesCustomData,);

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

  609.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

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

  611.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  612.         CARLA_SAFE_ASSERT_RETURN(fHandle2 == nullptr,);

  613.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  614.         CARLA_SAFE_ASSERT_RETURN(dataSize > 0,);

  615. 

  616.         {

  617.             const ScopedSingleProcessLocker spl(this, true);

  618. 

  619.             try {

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

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

  622.         }

  623. 

  624. #if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)

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

  626. #else

  627.         const bool sendOsc(false);

  628. #endif

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

  630.     }

  631. 

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

  633.     {

  634.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

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

  636.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  638. 

  639.         if (index >= 0)

  640.         {

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

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

  643. 

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

  645. 

  646.             try {

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

  648.             } catch(...) {}

  649. 

  650.             if (fHandle2 != nullptr)

  651.             {

  652.                 try {

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

  654.                 } catch(...) {}

  655.             }

  656.         }

  657. 

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

  659.     }

  660. 

  661. #ifdef HAVE_LIBLO

  662.     // -------------------------------------------------------------------

  663.     // Set ui stuff

  664. 

  665.     void showCustomUI(const bool yesNo) override

  666.     {

  667.         if (yesNo)

  668.         {

  669.             fOscData.clear();

  670.             fThreadUI.startThread();

  671.         }

  672.         else

  673.         {

  674.             pData->transientTryCounter = 0;

  675. 

  676.             if (fOscData.target != nullptr)

  677.             {

  678.                 osc_send_hide(fOscData);

  679.                 osc_send_quit(fOscData);

  680.                 fOscData.clear();

  681.             }

  682. 

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

  684.         }

  685.     }

  686. #endif

  687. 

  688. #if 0 // TODO

  689.     void idle() override

  690.     {

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

  692.         {

  693.             fLatencyChanged = false;

  694. 

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

  696. 

  697.             if (latency >= 0)

  698.             {

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

  700. 

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

  702.                 {

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

  704. 

  705.                     const ScopedSingleProcessLocker sspl(this, true);

  706. 

  707.                     pData->latency = ulatency;

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

  709. #ifndef BUILD_BRIDGE

  710.                     pData->recreateLatencyBuffers();

  711. #endif

  712.                 }

  713.             }

  714.             else

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

  716.         }

  717. 

  718.         CarlaPlugin::idle();

  719.     }

  720. #endif

  721. 

  722.     // -------------------------------------------------------------------

  723.     // Plugin state

  724. 

  725.     void reload() override

  726.     {

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

  728.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  729.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  730.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  732. 

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

  734. 

  735.         // Safely disable plugin for reload

  736.         const ScopedDisabler sd(this);

  737. 

  738.         if (pData->active)

  739.             deactivate();

  740. 

  741.         clearBuffers();

  742. 

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

  744.         const uint32_t portCount(getSafePortCount());

  745. 

  746.         uint32_t aIns, aOuts, mIns, params;

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

  748. 

  749.         bool forcedStereoIn, forcedStereoOut;

  750.         forcedStereoIn = forcedStereoOut = false;

  751. 

  752.         bool needsCtrlIn, needsCtrlOut;

  753.         needsCtrlIn = needsCtrlOut = false;

  754. 

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

  756.         {

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

  758. 

  759.             if (LADSPA_IS_PORT_AUDIO(portType))

  760.             {

  761.                 if (LADSPA_IS_PORT_INPUT(portType))

  762.                     aIns += 1;

  763.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  764.                     aOuts += 1;

  765.             }

  766.             else if (LADSPA_IS_PORT_CONTROL(portType))

  767.                 params += 1;

  768.         }

  769. 

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

  771.         {

  772.             if (fHandle2 == nullptr)

  773.             {

  774.                 try {

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

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

  777.             }

  778. 

  779.             if (fHandle2 != nullptr)

  780.             {

  781.                 if (aIns == 1)

  782.                 {

  783.                     aIns = 2;

  784.                     forcedStereoIn = true;

  785.                 }

  786. 

  787.                 if (aOuts == 1)

  788.                 {

  789.                     aOuts = 2;

  790.                     forcedStereoOut = true;

  791.                 }

  792.             }

  793.         }

  794. 

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

  796.         {

  797.             mIns = 1;

  798.             needsCtrlIn = true;

  799.         }

  800. 

  801.         if (aIns > 0)

  802.         {

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

  804.             fAudioInBuffers = new float*[aIns];

  805. 

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

  807.                 fAudioInBuffers[i] = nullptr;

  808.         }

  809. 

  810.         if (aOuts > 0)

  811.         {

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

  813.             fAudioOutBuffers = new float*[aOuts];

  814.             needsCtrlIn = true;

  815. 

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

  817.                 fAudioOutBuffers[i] = nullptr;

  818.         }

  819. 

  820.         if (params > 0)

  821.         {

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

  823. 

  824.             fParamBuffers = new float[params];

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

  826.         }

  827. 

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

  829.         CarlaString portName;

  830. 

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

  832.         {

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

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

  835. 

  836.             if (LADSPA_IS_PORT_AUDIO(portType))

  837.             {

  838.                 portName.clear();

  839. 

  840.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  841.                 {

  842.                     portName  = pData->name;

  843.                     portName += ":";

  844.                 }

  845. 

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

  847.                 {

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

  849.                 }

  850.                 else

  851.                 {

  852.                     if (LADSPA_IS_PORT_INPUT(portType))

  853.                     {

  854.                         if (aIns > 1)

  855.                         {

  856.                             portName += "audio-in_";

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

  858.                         }

  859.                         else

  860.                             portName += "audio-in";

  861.                     }

  862.                     else

  863.                     {

  864.                         if (aOuts > 1)

  865.                         {

  866.                             portName += "audio-out_";

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

  868.                         }

  869.                         else

  870.                             portName += "audio-out";

  871.                     }

  872.                 }

  873. 

  874.                 portName.truncate(portNameSize);

  875. 

  876.                 if (LADSPA_IS_PORT_INPUT(portType))

  877.                 {

  878.                     const uint32_t j = iAudioIn++;

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

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

  881. 

  882.                     if (forcedStereoIn)

  883.                     {

  884.                         portName += "_2";

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

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

  887.                     }

  888.                 }

  889.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  890.                 {

  891.                     const uint32_t j = iAudioOut++;

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

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

  894. 

  895.                     if (forcedStereoOut)

  896.                     {

  897.                         portName += "_2";

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

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

  900.                     }

  901.                 }

  902.                 else

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

  904.             }

  905.             else if (LADSPA_IS_PORT_CONTROL(portType))

  906.             {

  907.                 const uint32_t j = iCtrl++;

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

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

  910. 

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

  912. 

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

  914. 

  915.                 // min value

  916.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  917.                     min = portRangeHints.LowerBound;

  918.                 else

  919.                     min = 0.0f;

  920. 

  921.                 // max value

  922.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  923.                     max = portRangeHints.UpperBound;

  924.                 else

  925.                     max = 1.0f;

  926. 

  927.                 if (min > max)

  928.                 {

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

  930.                     min = max - 0.1f;

  931.                 }

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

  933.                 {

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

  935.                     max = min + 0.1f;

  936.                 }

  937. 

  938.                 // default value

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

  940. 

  941.                 if (def < min)

  942.                     def = min;

  943.                 else if (def > max)

  944.                     def = max;

  945. 

  946.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  947.                 {

  948.                     min *= sampleRate;

  949.                     max *= sampleRate;

  950.                     def *= sampleRate;

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

  952.                 }

  953. 

  954.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  955.                 {

  956.                     step = max - min;

  957.                     stepSmall = step;

  958.                     stepLarge = step;

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

  960.                 }

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

  962.                 {

  963.                     step = 1.0f;

  964.                     stepSmall = 1.0f;

  965.                     stepLarge = 10.0f;

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

  967.                 }

  968.                 else

  969.                 {

  970.                     const float range = max - min;

  971.                     step = range/100.0f;

  972.                     stepSmall = range/1000.0f;

  973.                     stepLarge = range/10.0f;

  974.                 }

  975. 

  976.                 if (LADSPA_IS_PORT_INPUT(portType))

  977.                 {

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

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

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

  981.                     needsCtrlIn = true;

  982. 

  983.                     // MIDI CC value

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

  985.                     {

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

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

  988.                         {

  989.                             int16_t cc = DSSI_CC_NUMBER(controller);

  990.                             if (! MIDI_IS_CONTROL_BANK_SELECT(cc))

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

  992.                         }

  993.                     }

  994.                 }

  995.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  996.                 {

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

  998. 

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

  1000.                     {

  1001.                         min = 0.0f;

  1002.                         max = sampleRate;

  1003.                         def = 0.0f;

  1004.                         step = 1.0f;

  1005.                         stepSmall = 1.0f;

  1006.                         stepLarge = 1.0f;

  1007.                         pData->param.special[j] = PARAMETER_SPECIAL_LATENCY;

  1008.                         CARLA_SAFE_ASSERT(fLatencyIndex == -1);

  1009.                         fLatencyIndex = static_cast<int32_t>(j);

  1010.                     }

  1011.                     else

  1012.                     {

  1013.                         pData->param.data[j].hints |= PARAMETER_IS_ENABLED;

  1014.                         pData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE;

  1015.                         needsCtrlOut = true;

  1016.                     }

  1017.                 }

  1018.                 else

  1019.                 {

  1020.                     carla_stderr2("WARNING - Got a broken Port (Control, but not input or output)");

  1021.                 }

  1022. 

  1023.                 // extra parameter hints

  1024.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

  1025.                     pData->param.data[j].hints |= PARAMETER_IS_LOGARITHMIC;

  1026. 

  1027.                 pData->param.ranges[j].min = min;

  1028.                 pData->param.ranges[j].max = max;

  1029.                 pData->param.ranges[j].def = def;

  1030.                 pData->param.ranges[j].step = step;

  1031.                 pData->param.ranges[j].stepSmall = stepSmall;

  1032.                 pData->param.ranges[j].stepLarge = stepLarge;

  1033. 

  1034.                 // Start parameters in their default values

  1035.                 fParamBuffers[j] = def;

  1036. 

  1037.                 try {

  1038.                     fDescriptor->connect_port(fHandle, i, &fParamBuffers[j]);

  1039.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port parameter");

  1040. 

  1041.                 if (fHandle2 != nullptr)

  1042.                 {

  1043.                     try {

  1044.                         fDescriptor->connect_port(fHandle2, i, &fParamBuffers[j]);

  1045.                     } CARLA_SAFE_EXCEPTION("DSSI connect_port parameter #2");

  1046.                 }

  1047.             }

  1048.             else

  1049.             {

  1050.                 // Not Audio or Control

  1051.                 carla_stderr2("ERROR - Got a broken Port (neither Audio or Control)");

  1052. 

  1053.                 try {

  1054.                     fDescriptor->connect_port(fHandle, i, nullptr);

  1055.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port null");

  1056. 

  1057.                 if (fHandle2 != nullptr)

  1058.                 {

  1059.                     try {

  1060.                         fDescriptor->connect_port(fHandle2, i, nullptr);

  1061.                     } CARLA_SAFE_EXCEPTION("DSSI connect_port null #2");

  1062.                 }

  1063.             }

  1064.         }

  1065. 

  1066.         if (needsCtrlIn)

  1067.         {

  1068.             portName.clear();

  1069. 

  1070.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1071.             {

  1072.                 portName  = pData->name;

  1073.                 portName += ":";

  1074.             }

  1075. 

  1076.             portName += "events-in";

  1077.             portName.truncate(portNameSize);

  1078. 

  1079.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true, 0);

  1080.         }

  1081. 

  1082.         if (needsCtrlOut)

  1083.         {

  1084.             portName.clear();

  1085. 

  1086.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1087.             {

  1088.                 portName  = pData->name;

  1089.                 portName += ":";

  1090.             }

  1091. 

  1092.             portName += "events-out";

  1093.             portName.truncate(portNameSize);

  1094. 

  1095.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false, 0);

  1096.         }

  1097. 

  1098.         if (forcedStereoIn || forcedStereoOut)

  1099.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1100.         else

  1101.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  1102. 

  1103.         // plugin hints

  1104.         pData->hints = 0x0;

  1105. 

  1106.         if (LADSPA_IS_HARD_RT_CAPABLE(fDescriptor->Properties))

  1107.             pData->hints |= PLUGIN_IS_RTSAFE;

  1108. 

  1109. #ifdef HAVE_LIBLO

  1110.         if (fUiFilename != nullptr)

  1111.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  1112. #endif

  1113. 

  1114. #ifndef BUILD_BRIDGE

  1115.         if (aOuts > 0 && (aIns == aOuts || aIns == 1))

  1116.             pData->hints |= PLUGIN_CAN_DRYWET;

  1117. 

  1118.         if (aOuts > 0)

  1119.             pData->hints |= PLUGIN_CAN_VOLUME;

  1120. 

  1121.         if (aOuts >= 2 && aOuts % 2 == 0)

  1122.             pData->hints |= PLUGIN_CAN_BALANCE;

  1123. #endif

  1124. 

  1125.         // extra plugin hints

  1126.         pData->extraHints = 0x0;

  1127. 

  1128.         if (mIns > 0)

  1129.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  1130. 

  1131.         if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0))

  1132.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1133. 

  1134. #if 0 // TODO

  1135.         // check latency

  1136.         if (fLatencyIndex >= 0)

  1137.         {

  1138.             // we need to pre-run the plugin so it can update its latency control-port

  1139. 

  1140.             float tmpIn [(aIns > 0)  ? aIns  : 1][2];

  1141.             float tmpOut[(aOuts > 0) ? aOuts : 1][2];

  1142. 

  1143.             for (uint32_t j=0; j < aIns; ++j)

  1144.             {

  1145.                 tmpIn[j][0] = 0.0f;

  1146.                 tmpIn[j][1] = 0.0f;

  1147. 

  1148.                 try {

  1149.                     fDescriptor->connect_port(fHandle, pData->audioIn.ports[j].rindex, tmpIn[j]);

  1150.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port latency input");

  1151.             }

  1152. 

  1153.             for (uint32_t j=0; j < aOuts; ++j)

  1154.             {

  1155.                 tmpOut[j][0] = 0.0f;

  1156.                 tmpOut[j][1] = 0.0f;

  1157. 

  1158.                 try {

  1159.                     fDescriptor->connect_port(fHandle, pData->audioOut.ports[j].rindex, tmpOut[j]);

  1160.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port latency output");

  1161.             }

  1162. 

  1163.             if (fDescriptor->activate != nullptr)

  1164.             {

  1165.                 try {

  1166.                     fDescriptor->activate(fHandle);

  1167.                 } CARLA_SAFE_EXCEPTION("DSSI latency activate");

  1168.             }

  1169. 

  1170.             try {

  1171.                 fDescriptor->run(fHandle, 2);

  1172.             } CARLA_SAFE_EXCEPTION("DSSI latency run");

  1173. 

  1174.             if (fDescriptor->deactivate != nullptr)

  1175.             {

  1176.                 try {

  1177.                     fDescriptor->deactivate(fHandle);

  1178.                 } CARLA_SAFE_EXCEPTION("DSSI latency deactivate");

  1179.             }

  1180. 

  1181.             const int32_t latency(static_cast<int32_t>(fParamBuffers[fLatencyIndex]));

  1182. 

  1183.             if (latency >= 0)

  1184.             {

  1185.                 const uint32_t ulatency(static_cast<uint32_t>(latency));

  1186. 

  1187.                 if (pData->latency != ulatency)

  1188.                 {

  1189.                     carla_stdout("latency = %i", latency);

  1190. 

  1191.                     pData->latency = ulatency;

  1192.                     pData->client->setLatency(ulatency);

  1193. #ifndef BUILD_BRIDGE

  1194.                     pData->recreateLatencyBuffers();

  1195. #endif

  1196.                 }

  1197.             }

  1198.             else

  1199.                 carla_safe_assert_int("latency >= 0", __FILE__, __LINE__, latency);

  1200. 

  1201.             fLatencyChanged = false;

  1202.         }

  1203. #endif

  1204. 

  1205.         bufferSizeChanged(pData->engine->getBufferSize());

  1206.         reloadPrograms(true);

  1207. 

  1208.         if (pData->active)

  1209.             activate();

  1210. 

  1211.         carla_debug("CarlaPluginDSSI::reload() - end");

  1212.     }

  1213. 

  1214.     void reloadPrograms(const bool doInit) override

  1215.     {

  1216.         carla_debug("CarlaPluginDSSI::reloadPrograms(%s)", bool2str(doInit));

  1217.         const uint32_t oldCount = pData->midiprog.count;

  1218.         const int32_t  current  = pData->midiprog.current;

  1219. 

  1220.         // Delete old programs

  1221.         pData->midiprog.clear();

  1222. 

  1223.         // Query new programs

  1224.         uint32_t newCount = 0;

  1225.         if (fDssiDescriptor->get_program != nullptr && fDssiDescriptor->select_program != nullptr)

  1226.         {

  1227.             for (; fDssiDescriptor->get_program(fHandle, newCount) != nullptr;)

  1228.                 ++newCount;

  1229.         }

  1230. 

  1231.         if (newCount > 0)

  1232.         {

  1233.             pData->midiprog.createNew(newCount);

  1234. 

  1235.             // Update data

  1236.             for (uint32_t i=0; i < newCount; ++i)

  1237.             {

  1238.                 const DSSI_Program_Descriptor* const pdesc(fDssiDescriptor->get_program(fHandle, i));

  1239.                 CARLA_SAFE_ASSERT_CONTINUE(pdesc != nullptr);

  1240.                 CARLA_SAFE_ASSERT(pdesc->Name != nullptr);

  1241. 

  1242.                 pData->midiprog.data[i].bank    = static_cast<uint32_t>(pdesc->Bank);

  1243.                 pData->midiprog.data[i].program = static_cast<uint32_t>(pdesc->Program);

  1244.                 pData->midiprog.data[i].name    = carla_strdup(pdesc->Name);

  1245.             }

  1246.         }

  1247. 

  1248. #if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)

  1249.         // Update OSC Names

  1250.         if (pData->engine->isOscControlRegistered() && pData->id < pData->engine->getCurrentPluginCount())

  1251.         {

  1252.             pData->engine->oscSend_control_set_midi_program_count(pData->id, newCount);

  1253. 

  1254.             for (uint32_t i=0; i < newCount; ++i)

  1255.                 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);

  1256.         }

  1257. #endif

  1258. 

  1259.         if (doInit)

  1260.         {

  1261.             if (newCount > 0)

  1262.                 setMidiProgram(0, false, false, false);

  1263.         }

  1264.         else

  1265.         {

  1266.             // Check if current program is invalid

  1267.             bool programChanged = false;

  1268. 

  1269.             if (newCount == oldCount+1)

  1270.             {

  1271.                 // one midi program added, probably created by user

  1272.                 pData->midiprog.current = static_cast<int32_t>(oldCount);

  1273.                 programChanged = true;

  1274.             }

  1275.             else if (current < 0 && newCount > 0)

  1276.             {

  1277.                 // programs exist now, but not before

  1278.                 pData->midiprog.current = 0;

  1279.                 programChanged = true;

  1280.             }

  1281.             else if (current >= 0 && newCount == 0)

  1282.             {

  1283.                 // programs existed before, but not anymore

  1284.                 pData->midiprog.current = -1;

  1285.                 programChanged = true;

  1286.             }

  1287.             else if (current >= static_cast<int32_t>(newCount))

  1288.             {

  1289.                 // current midi program > count

  1290.                 pData->midiprog.current = 0;

  1291.                 programChanged = true;

  1292.             }

  1293.             else

  1294.             {

  1295.                 // no change

  1296.                 pData->midiprog.current = current;

  1297.             }

  1298. 

  1299.             if (programChanged)

  1300.                 setMidiProgram(pData->midiprog.current, true, true, true);

  1301. 

  1302.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1303.         }

  1304.     }

  1305. 

  1306.     // -------------------------------------------------------------------

  1307.     // Plugin processing

  1308. 

  1309.     void activate() noexcept override

  1310.     {

  1311.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1312.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1313. 

  1314.         if (fDescriptor->activate != nullptr)

  1315.         {

  1316.             try {

  1317.                 fDescriptor->activate(fHandle);

  1318.             } CARLA_SAFE_EXCEPTION("DSSI activate");

  1319. 

  1320.             if (fHandle2 != nullptr)

  1321.             {

  1322.                 try {

  1323.                     fDescriptor->activate(fHandle2);

  1324.                 } CARLA_SAFE_EXCEPTION("DSSI activate #2");

  1325.             }

  1326.         }

  1327.     }

  1328. 

  1329.     void deactivate() noexcept override

  1330.     {

  1331.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1332.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1333. 

  1334.         if (fDescriptor->deactivate != nullptr)

  1335.         {

  1336.             try {

  1337.                 fDescriptor->deactivate(fHandle);

  1338.             } CARLA_SAFE_EXCEPTION("DSSI deactivate");

  1339. 

  1340.             if (fHandle2 != nullptr)

  1341.             {

  1342.                 try {

  1343.                     fDescriptor->deactivate(fHandle2);

  1344.                 } CARLA_SAFE_EXCEPTION("DSSI deactivate #2");

  1345.             }

  1346.         }

  1347.     }

  1348. 

  1349.     void process(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames) override

  1350.     {

  1351.         // --------------------------------------------------------------------------------------------------------

  1352.         // Check if active

  1353. 

  1354.         if (! pData->active)

  1355.         {

  1356.             // disable any output sound

  1357.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1358.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1359.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1360.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1361.             return;

  1362.         }

  1363. 

  1364.         ulong midiEventCount = 0;

  1365.         carla_zeroStruct<snd_seq_event_t>(fMidiEvents, kPluginMaxMidiEvents);

  1366. 

  1367.         // --------------------------------------------------------------------------------------------------------

  1368.         // Check if needs reset

  1369. 

  1370.         if (pData->needsReset)

  1371.         {

  1372.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1373.             {

  1374.                 midiEventCount = MAX_MIDI_CHANNELS*2;

  1375. 

  1376.                 for (uchar i=0, k=MAX_MIDI_CHANNELS; i < MAX_MIDI_CHANNELS; ++i)

  1377.                 {

  1378.                     fMidiEvents[i].type = SND_SEQ_EVENT_CONTROLLER;

  1379.                     fMidiEvents[i].data.control.channel = i;

  1380.                     fMidiEvents[i].data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1381. 

  1382.                     fMidiEvents[k+i].type = SND_SEQ_EVENT_CONTROLLER;

  1383.                     fMidiEvents[k+i].data.control.channel = i;

  1384.                     fMidiEvents[k+i].data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1385.                 }

  1386.             }

  1387.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1388.             {

  1389.                 midiEventCount = MAX_MIDI_NOTE;

  1390. 

  1391.                 for (uchar i=0; i < MAX_MIDI_NOTE; ++i)

  1392.                 {

  1393.                     fMidiEvents[i].type = SND_SEQ_EVENT_NOTEOFF;

  1394.                     fMidiEvents[i].data.note.channel = static_cast<uchar>(pData->ctrlChannel);

  1395.                     fMidiEvents[i].data.note.note    = i;

  1396.                 }

  1397.             }

  1398. 

  1399. #ifndef BUILD_BRIDGE

  1400. #if 0 // TODO

  1401.             if (pData->latency > 0)

  1402.             {

  1403.                 for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1404.                     FloatVectorOperations::clear(pData->latencyBuffers[i], static_cast<int>(pData->latency));

  1405.             }

  1406. #endif

  1407. #endif

  1408. 

  1409.             pData->needsReset = false;

  1410.         }

  1411. 

  1412.         // --------------------------------------------------------------------------------------------------------

  1413.         // Event Input and Processing

  1414. 

  1415.         if (pData->event.portIn != nullptr)

  1416.         {

  1417.             // ----------------------------------------------------------------------------------------------------

  1418.             // MIDI Input (External)

  1419. 

  1420.             if (pData->extNotes.mutex.tryLock())

  1421.             {

  1422.                 ExternalMidiNote note = { 0, 0, 0 };

  1423. 

  1424.                 for (; midiEventCount < kPluginMaxMidiEvents && ! pData->extNotes.data.isEmpty();)

  1425.                 {

  1426.                     note = pData->extNotes.data.getFirst(note, true);

  1427. 

  1428.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1429. 

  1430.                     snd_seq_event_t& seqEvent(fMidiEvents[midiEventCount++]);

  1431. 

  1432.                     seqEvent.type               = (note.velo > 0) ? SND_SEQ_EVENT_NOTEON : SND_SEQ_EVENT_NOTEOFF;

  1433.                     seqEvent.data.note.channel  = static_cast<uchar>(note.channel);

  1434.                     seqEvent.data.note.note     = note.note;

  1435.                     seqEvent.data.note.velocity = note.velo;

  1436.                 }

  1437. 

  1438.                 pData->extNotes.mutex.unlock();

  1439. 

  1440.             } // End of MIDI Input (External)

  1441. 

  1442.             // ----------------------------------------------------------------------------------------------------

  1443.             // Event Input (System)

  1444. 

  1445. #ifndef BUILD_BRIDGE

  1446.             bool       allNotesOffSent  = false;

  1447. #endif

  1448.             const bool isSampleAccurate = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1449. 

  1450.             uint32_t startTime  = 0;

  1451.             uint32_t timeOffset = 0;

  1452.             uint32_t nextBankId;

  1453. 

  1454.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1455.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1456.             else

  1457.                 nextBankId = 0;

  1458. 

  1459.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1460.             {

  1461.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1462. 

  1463.                 if (event.time >= frames)

  1464.                     continue;

  1465. 

  1466.                 CARLA_ASSERT_INT2(event.time >= timeOffset, event.time, timeOffset);

  1467. 

  1468.                 if (isSampleAccurate && event.time > timeOffset)

  1469.                 {

  1470.                     if (processSingle(audioIn, audioOut, cvIn, cvOut, event.time - timeOffset, timeOffset, midiEventCount))

  1471.                     {

  1472.                         startTime  = 0;

  1473.                         timeOffset = event.time;

  1474.                         midiEventCount = 0;

  1475. 

  1476.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1477.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1478.                         else

  1479.                             nextBankId = 0;

  1480.                     }

  1481.                     else

  1482.                         startTime += timeOffset;

  1483.                 }

  1484. 

  1485.                 switch (event.type)

  1486.                 {

  1487.                 case kEngineEventTypeNull:

  1488.                     break;

  1489. 

  1490.                 case kEngineEventTypeControl: {

  1491.                     const EngineControlEvent& ctrlEvent(event.ctrl);

  1492. 

  1493.                     switch (ctrlEvent.type)

  1494.                     {

  1495.                     case kEngineControlEventTypeNull:

  1496.                         break;

  1497. 

  1498.                     case kEngineControlEventTypeParameter: {

  1499. #ifndef BUILD_BRIDGE

  1500.                         // Control backend stuff

  1501.                         if (event.channel == pData->ctrlChannel)

  1502.                         {

  1503.                             float value;

  1504. 

  1505.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1506.                             {

  1507.                                 value = ctrlEvent.value;

  1508.                                 setDryWet(value, false, false);

  1509.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1510.                                 break;

  1511.                             }

  1512. 

  1513.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1514.                             {

  1515.                                 value = ctrlEvent.value*127.0f/100.0f;

  1516.                                 setVolume(value, false, false);

  1517.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1518.                                 break;

  1519.                             }

  1520. 

  1521.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1522.                             {

  1523.                                 float left, right;

  1524.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1525. 

  1526.                                 if (value < 0.0f)

  1527.                                 {

  1528.                                     left  = -1.0f;

  1529.                                     right = (value*2.0f)+1.0f;

  1530.                                 }

  1531.                                 else if (value > 0.0f)

  1532.                                 {

  1533.                                     left  = (value*2.0f)-1.0f;

  1534.                                     right = 1.0f;

  1535.                                 }

  1536.                                 else

  1537.                                 {

  1538.                                     left  = -1.0f;

  1539.                                     right = 1.0f;

  1540.                                 }

  1541. 

  1542.                                 setBalanceLeft(left, false, false);

  1543.                                 setBalanceRight(right, false, false);

  1544.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1545.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1546.                                 break;

  1547.                             }

  1548.                         }

  1549. #endif

  1550.                         // Control plugin parameters

  1551.                         uint32_t k;

  1552.                         for (k=0; k < pData->param.count; ++k)

  1553.                         {

  1554.                             if (pData->param.data[k].midiChannel != event.channel)

  1555.                                 continue;

  1556.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1557.                                 continue;

  1558.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1559.                                 continue;

  1560.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1561.                                 continue;

  1562. 

  1563.                             float value;

  1564. 

  1565.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1566.                             {

  1567.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1568.                             }

  1569.                             else

  1570.                             {

  1571.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1572. 

  1573.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1574.                                     value = std::rint(value);

  1575.                             }

  1576. 

  1577.                             setParameterValue(k, value, false, false, false);

  1578.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1579.                             break;

  1580.                         }

  1581. 

  1582.                         // check if event is already handled

  1583.                         if (k != pData->param.count)

  1584.                             break;

  1585. 

  1586.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param < MAX_MIDI_CONTROL)

  1587.                         {

  1588.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1589.                                 continue;

  1590. 

  1591.                             snd_seq_event_t& seqEvent(fMidiEvents[midiEventCount++]);

  1592. 

  1593.                             seqEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1594. 

  1595.                             seqEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1596.                             seqEvent.data.control.channel = event.channel;

  1597.                             seqEvent.data.control.param   = ctrlEvent.param;

  1598.                             seqEvent.data.control.value   = int8_t(ctrlEvent.value*127.0f);

  1599.                         }

  1600.                         break;

  1601.                     } // case kEngineControlEventTypeParameter

  1602. 

  1603.                     case kEngineControlEventTypeMidiBank:

  1604.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1605.                             nextBankId = ctrlEvent.param;

  1606.                         break;

  1607. 

  1608.                     case kEngineControlEventTypeMidiProgram:

  1609.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1610.                         {

  1611.                             const uint32_t nextProgramId = ctrlEvent.param;

  1612. 

  1613.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1614.                             {

  1615.                                 if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1616.                                 {

  1617.                                     const int32_t index(static_cast<int32_t>(k));

  1618.                                     setMidiProgram(index, false, false, false);

  1619.                                     pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, index, 0, 0.0f);

  1620.                                     break;

  1621.                                 }

  1622.                             }

  1623.                         }

  1624.                         break;

  1625. 

  1626.                     case kEngineControlEventTypeAllSoundOff:

  1627.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1628.                         {

  1629.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1630.                                 continue;

  1631. 

  1632.                             snd_seq_event_t& seqEvent(fMidiEvents[midiEventCount++]);

  1633. 

  1634.                             seqEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1635. 

  1636.                             seqEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1637.                             seqEvent.data.control.channel = event.channel;

  1638.                             seqEvent.data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1639.                         }

  1640.                         break;

  1641. 

  1642.                     case kEngineControlEventTypeAllNotesOff:

  1643.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1644.                         {

  1645. #ifndef BUILD_BRIDGE

  1646.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1647.                             {

  1648.                                 allNotesOffSent = true;

  1649.                                 sendMidiAllNotesOffToCallback();

  1650.                             }

  1651. #endif

  1652. 

  1653.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1654.                                 continue;

  1655. 

  1656.                             snd_seq_event_t& seqEvent(fMidiEvents[midiEventCount++]);

  1657. 

  1658.                             seqEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1659. 

  1660.                             seqEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1661.                             seqEvent.data.control.channel = event.channel;

  1662.                             seqEvent.data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1663.                         }

  1664.                         break;

  1665.                     } // switch (ctrlEvent.type)

  1666.                     break;

  1667.                 } // case kEngineEventTypeControl

  1668. 

  1669.                 case kEngineEventTypeMidi: {

  1670.                     if (midiEventCount >= kPluginMaxMidiEvents)

  1671.                         continue;

  1672. 

  1673.                     const EngineMidiEvent& midiEvent(event.midi);

  1674. 

  1675.                     if (midiEvent.size > EngineMidiEvent::kDataSize)

  1676.                         continue;

  1677. 

  1678.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1679. 

  1680.                     // Fix bad note-off (per DSSI spec)

  1681.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1682.                         status = MIDI_STATUS_NOTE_OFF;

  1683. 

  1684.                     snd_seq_event_t& seqEvent(fMidiEvents[midiEventCount++]);

  1685. 

  1686.                     seqEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1687. 

  1688.                     switch (status)

  1689.                     {

  1690.                     case MIDI_STATUS_NOTE_OFF: {

  1691.                         const uint8_t note = midiEvent.data[1];

  1692. 

  1693.                         seqEvent.type = SND_SEQ_EVENT_NOTEOFF;

  1694.                         seqEvent.data.note.channel = event.channel;

  1695.                         seqEvent.data.note.note    = note;

  1696. 

  1697.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, note, 0.0f);

  1698.                         break;

  1699.                     }

  1700. 

  1701.                     case MIDI_STATUS_NOTE_ON: {

  1702.                         const uint8_t note = midiEvent.data[1];

  1703.                         const uint8_t velo = midiEvent.data[2];

  1704. 

  1705.                         seqEvent.type = SND_SEQ_EVENT_NOTEON;

  1706.                         seqEvent.data.note.channel  = event.channel;

  1707.                         seqEvent.data.note.note     = note;

  1708.                         seqEvent.data.note.velocity = velo;

  1709. 

  1710.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, note, velo);

  1711.                         break;

  1712.                     }

  1713. 

  1714.                     case MIDI_STATUS_POLYPHONIC_AFTERTOUCH:

  1715.                         if (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH)

  1716.                         {

  1717.                             const uint8_t note     = midiEvent.data[1];

  1718.                             const uint8_t pressure = midiEvent.data[2];

  1719. 

  1720.                             seqEvent.type = SND_SEQ_EVENT_KEYPRESS;

  1721.                             seqEvent.data.note.channel  = event.channel;

  1722.                             seqEvent.data.note.note     = note;

  1723.                             seqEvent.data.note.velocity = pressure;

  1724.                         }

  1725.                         break;

  1726. 

  1727.                     case MIDI_STATUS_CONTROL_CHANGE:

  1728.                         if (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1729.                         {

  1730.                             const uint8_t control = midiEvent.data[1];

  1731.                             const uint8_t value   = midiEvent.data[2];

  1732. 

  1733.                             seqEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1734.                             seqEvent.data.control.channel = event.channel;

  1735.                             seqEvent.data.control.param   = control;

  1736.                             seqEvent.data.control.value   = value;

  1737.                         }

  1738.                         break;

  1739. 

  1740.                     case MIDI_STATUS_CHANNEL_PRESSURE:

  1741.                         if (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE)

  1742.                         {

  1743.                             const uint8_t pressure = midiEvent.data[1];

  1744. 

  1745.                             seqEvent.type = SND_SEQ_EVENT_CHANPRESS;

  1746.                             seqEvent.data.control.channel = event.channel;

  1747.                             seqEvent.data.control.value   = pressure;

  1748.                         }

  1749.                         break;

  1750. 

  1751.                     case MIDI_STATUS_PITCH_WHEEL_CONTROL:

  1752.                         if (pData->options & PLUGIN_OPTION_SEND_PITCHBEND)

  1753.                         {

  1754.                             const uint8_t lsb = midiEvent.data[1];

  1755.                             const uint8_t msb = midiEvent.data[2];

  1756. 

  1757.                             seqEvent.type = SND_SEQ_EVENT_PITCHBEND;

  1758.                             seqEvent.data.control.channel = event.channel;

  1759.                             seqEvent.data.control.value   = ((msb << 7) | lsb) - 8192;

  1760.                         }

  1761.                         break;

  1762. 

  1763.                     default:

  1764.                         --midiEventCount;

  1765.                         break;

  1766.                     } // switch (status)

  1767.                 } break;

  1768.                 } // switch (event.type)

  1769.             }

  1770. 

  1771.             pData->postRtEvents.trySplice();

  1772. 

  1773.             if (frames > timeOffset)

  1774.                 processSingle(audioIn, audioOut, cvIn, cvOut, frames - timeOffset, timeOffset, midiEventCount);

  1775. 

  1776.         } // End of Event Input and Processing

  1777. 

  1778.         // --------------------------------------------------------------------------------------------------------

  1779.         // Plugin processing (no events)

  1780. 

  1781.         else

  1782.         {

  1783.             processSingle(audioIn, audioOut, cvIn, cvOut, frames, 0, midiEventCount);

  1784. 

  1785.         } // End of Plugin processing (no events)

  1786. 

  1787. #ifndef BUILD_BRIDGE

  1788. #if 0 // TODO

  1789.         // --------------------------------------------------------------------------------------------------------

  1790.         // Latency, save values for next callback

  1791. 

  1792.         if (fLatencyIndex != -1)

  1793.         {

  1794.             if (pData->latency != static_cast<uint32_t>(fParamBuffers[fLatencyIndex]))

  1795.             {

  1796.                 fLatencyChanged = true;

  1797.             }

  1798.             else if (pData->latency > 0)

  1799.             {

  1800.                 if (pData->latency <= frames)

  1801.                 {

  1802.                     for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1803.                         FloatVectorOperations::copy(pData->latencyBuffers[i], audioIn[i]+(frames-pData->latency), static_cast<int>(pData->latency));

  1804.                 }

  1805.                 else

  1806.                 {

  1807.                     for (uint32_t i=0, j, k; i < pData->audioIn.count; ++i)

  1808.                     {

  1809.                         for (k=0; k < pData->latency-frames; ++k)

  1810.                             pData->latencyBuffers[i][k] = pData->latencyBuffers[i][k+frames];

  1811.                         for (j=0; k < pData->latency; ++j, ++k)

  1812.                             pData->latencyBuffers[i][k] = audioIn[i][j];

  1813.                     }

  1814.                 }

  1815.             }

  1816.         }

  1817. #endif

  1818. 

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

  1820.         // Control Output

  1821. 

  1822.         if (pData->event.portOut != nullptr)

  1823.         {

  1824.             uint8_t  channel;

  1825.             uint16_t param;

  1826.             float    value;

  1827. 

  1828.             for (uint32_t k=0; k < pData->param.count; ++k)

  1829.             {

  1830.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1831.                     continue;

  1832. 

  1833.                 pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1834. 

  1835.                 if (pData->param.data[k].midiCC > 0)

  1836.                 {

  1837.                     channel = pData->param.data[k].midiChannel;

  1838.                     param   = static_cast<uint16_t>(pData->param.data[k].midiCC);

  1839.                     value   = pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]);

  1840.                     pData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value);

  1841.                 }

  1842.             }

  1843.         } // End of Control Output

  1844. #endif

  1845.     }

  1846. 

  1847.     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)

  1848.     {

  1849.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1850. 

  1851.         if (pData->audioIn.count > 0)

  1852.         {

  1853.             CARLA_SAFE_ASSERT_RETURN(audioIn != nullptr, false);

  1854.         }

  1855.         if (pData->audioOut.count > 0)

  1856.         {

  1857.             CARLA_SAFE_ASSERT_RETURN(audioOut != nullptr, false);

  1858.         }

  1859.         if (pData->cvIn.count > 0)

  1860.         {

  1861.             CARLA_SAFE_ASSERT_RETURN(cvIn != nullptr, false);

  1862.         }

  1863.         if (pData->cvOut.count > 0)

  1864.         {

  1865.             CARLA_SAFE_ASSERT_RETURN(cvOut != nullptr, false);

  1866.         }

  1867. 

  1868.         // --------------------------------------------------------------------------------------------------------

  1869.         // Try lock, silence otherwise

  1870. 

  1871.         if (pData->engine->isOffline())

  1872.         {

  1873.             pData->singleMutex.lock();

  1874.         }

  1875.         else if (! pData->singleMutex.tryLock())

  1876.         {

  1877.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1878.             {

  1879.                 for (uint32_t k=0; k < frames; ++k)

  1880.                     audioOut[i][k+timeOffset] = 0.0f;

  1881.             }

  1882.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1883.             {

  1884.                 for (uint32_t k=0; k < frames; ++k)

  1885.                     cvOut[i][k+timeOffset] = 0.0f;

  1886.             }

  1887. 

  1888.             return false;

  1889.         }

  1890. 

  1891.         // --------------------------------------------------------------------------------------------------------

  1892.         // Set audio buffers

  1893. 

  1894.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1895.             FloatVectorOperations::copy(fAudioInBuffers[i], audioIn[i]+timeOffset, static_cast<int>(frames));

  1896. 

  1897.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1898.             FloatVectorOperations::clear(fAudioOutBuffers[i], static_cast<int>(frames));

  1899. 

  1900. #if 0

  1901.         // --------------------------------------------------------------------------------------------------------

  1902.         // Set CV buffers

  1903. 

  1904.         for (uint32_t i=0; i < pData->cvIn.count; ++i)

  1905.             FloatVectorOperations::copy(fCvInBuffers[i], cvIn[i]+timeOffset, static_cast<int>(frames));

  1906. 

  1907.         for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1908.             FloatVectorOperations::clear(fCvOutBuffers[i], static_cast<int>(frames));

  1909. #endif

  1910. 

  1911.         // --------------------------------------------------------------------------------------------------------

  1912.         // Run plugin

  1913. 

  1914.         // TODO - try catch

  1915. 

  1916.         if (fDssiDescriptor->run_synth != nullptr)

  1917.         {

  1918.             fDssiDescriptor->run_synth(fHandle, frames, fMidiEvents, midiEventCount);

  1919. 

  1920.             if (fHandle2 != nullptr)

  1921.                 fDssiDescriptor->run_synth(fHandle2, frames, fMidiEvents, midiEventCount);

  1922.         }

  1923.         else if (fDssiDescriptor->run_multiple_synths != nullptr)

  1924.         {

  1925.             ulong instances = (fHandle2 != nullptr) ? 2 : 1;

  1926.             LADSPA_Handle handlePtr[2] = { fHandle, fHandle2 };

  1927.             snd_seq_event_t* midiEventsPtr[2] = { fMidiEvents, fMidiEvents };

  1928.             ulong midiEventCountPtr[2] = { midiEventCount, midiEventCount };

  1929.             fDssiDescriptor->run_multiple_synths(instances, handlePtr, frames, midiEventsPtr, midiEventCountPtr);

  1930.         }

  1931.         else

  1932.         {

  1933.             fDescriptor->run(fHandle, frames);

  1934. 

  1935.             if (fHandle2 != nullptr)

  1936.                 fDescriptor->run(fHandle2, frames);

  1937.         }

  1938. 

  1939. #ifndef BUILD_BRIDGE

  1940.         // --------------------------------------------------------------------------------------------------------

  1941.         // Post-processing (dry/wet, volume and balance)

  1942. 

  1943.         {

  1944.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && ! carla_compareFloats(pData->postProc.dryWet, 1.0f);

  1945.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_compareFloats(pData->postProc.balanceLeft, -1.0f) && carla_compareFloats(pData->postProc.balanceRight, 1.0f));

  1946.             const bool isMono    = (pData->audioIn.count == 1);

  1947. 

  1948.             bool isPair;

  1949.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1950. 

  1951.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1952.             {

  1953.                 // Dry/Wet

  1954.                 if (doDryWet)

  1955.                 {

  1956.                     for (uint32_t k=0; k < frames; ++k)

  1957.                     {

  1958. #if 0 // TODO

  1959.                         if (k < pData->latency)

  1960.                             bufValue = pData->latencyBuffers[isMono ? 0 : i][k];

  1961.                         else if (pData->latency < frames)

  1962.                             bufValue = fAudioInBuffers[isMono ? 0 : i][k-pData->latency];

  1963.                         else

  1964. #endif

  1965.                             bufValue = fAudioInBuffers[isMono ? 0 : i][k];

  1966. 

  1967.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1968.                     }

  1969.                 }

  1970. 

  1971.                 // Balance

  1972.                 if (doBalance)

  1973.                 {

  1974.                     isPair = (i % 2 == 0);

  1975. 

  1976.                     if (isPair)

  1977.                     {

  1978.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1979.                         FloatVectorOperations::copy(oldBufLeft, fAudioOutBuffers[i], static_cast<int>(frames));

  1980.                     }

  1981. 

  1982.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1983.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1984. 

  1985.                     for (uint32_t k=0; k < frames; ++k)

  1986.                     {

  1987.                         if (isPair)

  1988.                         {

  1989.                             // left

  1990.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1991.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1992.                         }

  1993.                         else

  1994.                         {

  1995.                             // right

  1996.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1997.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1998.                         }

  1999.                     }

  2000.                 }

  2001. 

  2002.                 // Volume (and buffer copy)

  2003.                 {

  2004.                     for (uint32_t k=0; k < frames; ++k)

  2005.                         audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  2006.                 }

  2007.             }

  2008. 

  2009.         } // End of Post-processing

  2010. 

  2011. #else // BUILD_BRIDGE

  2012.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  2013.         {

  2014.             for (uint32_t k=0; k < frames; ++k)

  2015.                 audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k];

  2016.         }

  2017. #endif

  2018. 

  2019. #if 0

  2020.         for (uint32_t i=0; i < pData->cvOut.count; ++i)

  2021.         {

  2022.             for (uint32_t k=0; k < frames; ++k)

  2023.                 cvOut[i][k+timeOffset] = fCvOutBuffers[i][k];

  2024.         }

  2025. #endif

  2026. 

  2027.         // --------------------------------------------------------------------------------------------------------

  2028. 

  2029.         pData->singleMutex.unlock();

  2030.         return true;

  2031.     }

  2032. 

  2033.     void bufferSizeChanged(const uint32_t newBufferSize) override

  2034.     {

  2035.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  2036.         carla_debug("CarlaPluginDSSI::bufferSizeChanged(%i) - start", newBufferSize);

  2037. 

  2038.         const int iBufferSize(static_cast<int>(newBufferSize));

  2039. 

  2040.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  2041.         {

  2042.             if (fAudioInBuffers[i] != nullptr)

  2043.                 delete[] fAudioInBuffers[i];

  2044. 

  2045.             fAudioInBuffers[i] = new float[newBufferSize];

  2046.             FloatVectorOperations::clear(fAudioInBuffers[i], iBufferSize);

  2047.         }

  2048. 

  2049.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  2050.         {

  2051.             if (fAudioOutBuffers[i] != nullptr)

  2052.                 delete[] fAudioOutBuffers[i];

  2053. 

  2054.             fAudioOutBuffers[i] = new float[newBufferSize];

  2055.             FloatVectorOperations::clear(fAudioOutBuffers[i], iBufferSize);

  2056.         }

  2057. 

  2058.         if (fExtraStereoBuffer[0] != nullptr)

  2059.         {

  2060.             delete[] fExtraStereoBuffer[0];

  2061.             fExtraStereoBuffer[0] = nullptr;

  2062.         }

  2063. 

  2064.         if (fExtraStereoBuffer[1] != nullptr)

  2065.         {

  2066.             delete[] fExtraStereoBuffer[1];

  2067.             fExtraStereoBuffer[1] = nullptr;

  2068.         }

  2069. 

  2070.         if (fForcedStereoIn && pData->audioOut.count == 2)

  2071.         {

  2072.             fExtraStereoBuffer[0] = new float[newBufferSize];

  2073.             fExtraStereoBuffer[1] = new float[newBufferSize];

  2074.             FloatVectorOperations::clear(fExtraStereoBuffer[0], iBufferSize);

  2075.             FloatVectorOperations::clear(fExtraStereoBuffer[1], iBufferSize);

  2076.         }

  2077. 

  2078.         reconnectAudioPorts();

  2079. 

  2080.         carla_debug("CarlaPluginDSSI::bufferSizeChanged(%i) - end", newBufferSize);

  2081.     }

  2082. 

  2083.     void sampleRateChanged(const double newSampleRate) override

  2084.     {

  2085.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  2086.         carla_debug("CarlaPluginDSSI::sampleRateChanged(%g) - start", newSampleRate);

  2087. 

  2088.         // TODO - handle UI stuff

  2089. 

  2090.         if (pData->active)

  2091.             deactivate();

  2092. 

  2093.         const std::size_t instanceCount(fHandles.count());

  2094. 

  2095.         if (fDescriptor->cleanup == nullptr)

  2096.         {

  2097.             for (LinkedList<LADSPA_Handle>::Itenerator it = fHandles.begin2(); it.valid(); it.next())

  2098.             {

  2099.                 LADSPA_Handle const handle(it.getValue(nullptr));

  2100.                 CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  2101. 

  2102.                 try {

  2103.                     fDescriptor->cleanup(handle);

  2104.                 } CARLA_SAFE_EXCEPTION("LADSPA cleanup");

  2105.             }

  2106.         }

  2107. 

  2108.         fHandles.clear();

  2109. 

  2110.         for (std::size_t i=0; i<instanceCount; ++i)

  2111.             addInstance();

  2112. 

  2113.         reconnectAudioPorts();

  2114. 

  2115.         if (pData->active)

  2116.             activate();

  2117. 

  2118.         carla_debug("CarlaPluginDSSI::sampleRateChanged(%g) - end", newSampleRate);

  2119.     }

  2120. 

  2121.     void reconnectAudioPorts() const noexcept

  2122.     {

  2123.         if (fForcedStereoIn)

  2124.         {

  2125.             if (LADSPA_Handle const handle = fHandles.getAt(0, nullptr))

  2126.             {

  2127.                 try {

  2128.                     fDescriptor->connect_port(handle, pData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  2129.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port (forced stereo input)");

  2130.             }

  2131. 

  2132.             if (LADSPA_Handle const handle = fHandles.getAt(1, nullptr))

  2133.             {

  2134.                 try {

  2135.                     fDescriptor->connect_port(handle, pData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  2136.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port (forced stereo input)");

  2137.             }

  2138.         }

  2139.         else

  2140.         {

  2141.             for (LinkedList<LADSPA_Handle>::Itenerator it = fHandles.begin2(); it.valid(); it.next())

  2142.             {

  2143.                 LADSPA_Handle const handle(it.getValue(nullptr));

  2144.                 CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  2145. 

  2146.                 for (uint32_t i=0; i < pData->audioIn.count; ++i)

  2147.                 {

  2148.                     try {

  2149.                         fDescriptor->connect_port(handle, pData->audioIn.ports[i].rindex, fAudioInBuffers[i]);

  2150.                     } CARLA_SAFE_EXCEPTION("DSSI connect_port (audio input)");

  2151.                 }

  2152.             }

  2153.         }

  2154. 

  2155.         if (fForcedStereoOut)

  2156.         {

  2157.             if (LADSPA_Handle const handle = fHandles.getAt(0, nullptr))

  2158.             {

  2159.                 try {

  2160.                     fDescriptor->connect_port(handle, pData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  2161.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port (forced stereo output)");

  2162.             }

  2163. 

  2164.             if (LADSPA_Handle const handle = fHandles.getAt(1, nullptr))

  2165.             {

  2166.                 try {

  2167.                     fDescriptor->connect_port(handle, pData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  2168.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port (forced stereo output)");

  2169.             }

  2170.         }

  2171.         else

  2172.         {

  2173.             for (LinkedList<LADSPA_Handle>::Itenerator it = fHandles.begin2(); it.valid(); it.next())

  2174.             {

  2175.                 LADSPA_Handle const handle(it.getValue(nullptr));

  2176.                 CARLA_SAFE_ASSERT_CONTINUE(handle != nullptr);

  2177. 

  2178.                 for (uint32_t i=0; i < pData->audioOut.count; ++i)

  2179.                 {

  2180.                     try {

  2181.                         fDescriptor->connect_port(handle, pData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  2182.                     } CARLA_SAFE_EXCEPTION("DSSI connect_port (audio output)");

  2183.                 }

  2184.             }

  2185.         }

  2186.     }

  2187. 

  2188.     // -------------------------------------------------------------------

  2189.     // Plugin buffers

  2190. 

  2191.     void clearBuffers() noexcept override

  2192.     {

  2193.         carla_debug("CarlaPluginDSSI::clearBuffers() - start");

  2194. 

  2195.         if (fAudioInBuffers != nullptr)

  2196.         {

  2197.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  2198.             {

  2199.                 if (fAudioInBuffers[i] != nullptr)

  2200.                 {

  2201.                     delete[] fAudioInBuffers[i];

  2202.                     fAudioInBuffers[i] = nullptr;

  2203.                 }

  2204.             }

  2205. 

  2206.             delete[] fAudioInBuffers;

  2207.             fAudioInBuffers = nullptr;

  2208.         }

  2209. 

  2210.         if (fAudioOutBuffers != nullptr)

  2211.         {

  2212.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  2213.             {

  2214.                 if (fAudioOutBuffers[i] != nullptr)

  2215.                 {

  2216.                     delete[] fAudioOutBuffers[i];

  2217.                     fAudioOutBuffers[i] = nullptr;

  2218.                 }

  2219.             }

  2220. 

  2221.             delete[] fAudioOutBuffers;

  2222.             fAudioOutBuffers = nullptr;

  2223.         }

  2224. 

  2225.         if (fExtraStereoBuffer[0] != nullptr)

  2226.         {

  2227.             delete[] fExtraStereoBuffer[0];

  2228.             fExtraStereoBuffer[0] = nullptr;

  2229.         }

  2230. 

  2231.         if (fExtraStereoBuffer[1] != nullptr)

  2232.         {

  2233.             delete[] fExtraStereoBuffer[1];

  2234.             fExtraStereoBuffer[1] = nullptr;

  2235.         }

  2236. 

  2237.         if (fParamBuffers != nullptr)

  2238.         {

  2239.             delete[] fParamBuffers;

  2240.             fParamBuffers = nullptr;

  2241.         }

  2242. 

  2243.         CarlaPlugin::clearBuffers();

  2244. 

  2245.         carla_debug("CarlaPluginDSSI::clearBuffers() - end");

  2246.     }

  2247. 

  2248. #ifdef HAVE_LIBLO

  2249.     // -------------------------------------------------------------------

  2250.     // OSC stuff

  2251. 

  2252.     void handleOscMessage(const char* const method, const int argc, const void* const argvx, const char* const types, const lo_message msg) override

  2253.     {

  2254.         const lo_address source(lo_message_get_source(msg));

  2255.         CARLA_SAFE_ASSERT_RETURN(source != nullptr,);

  2256. 

  2257.         // protocol for DSSI UIs *must* be UDP

  2258.         CARLA_SAFE_ASSERT_RETURN(lo_address_get_protocol(source) == LO_UDP,);

  2259. 

  2260.         if (fOscData.source == nullptr)

  2261.         {

  2262.             // if no UI is registered yet only "update" message is valid

  2263.             CARLA_SAFE_ASSERT_RETURN(std::strcmp(method, "update") == 0,)

  2264.         }

  2265.         else

  2266.         {

  2267.             // make sure message source is the DSSI UI

  2268.             const char* const msghost = lo_address_get_hostname(source);

  2269.             const char* const msgport = lo_address_get_port(source);

  2270. 

  2271.             const char* const ourhost = lo_address_get_hostname(fOscData.source);

  2272.             const char* const ourport = lo_address_get_port(fOscData.source);

  2273. 

  2274.             CARLA_SAFE_ASSERT_RETURN(std::strcmp(msghost, ourhost) == 0,);

  2275.             CARLA_SAFE_ASSERT_RETURN(std::strcmp(msgport, ourport) == 0,);

  2276.         }

  2277. 

  2278.         const lo_arg* const* const argv(static_cast<const lo_arg* const* const>(argvx));

  2279. 

  2280.         if (std::strcmp(method, "configure") == 0)

  2281.             return handleOscMessageConfigure(argc, argv, types);

  2282.         if (std::strcmp(method, "control") == 0)

  2283.             return handleOscMessageControl(argc, argv, types);

  2284.         if (std::strcmp(method, "program") == 0)

  2285.             return handleOscMessageProgram(argc, argv, types);

  2286.         if (std::strcmp(method, "midi") == 0)

  2287.             return handleOscMessageMIDI(argc, argv, types);

  2288.         if (std::strcmp(method, "update") == 0)

  2289.             return handleOscMessageUpdate(argc, argv, types, lo_message_get_source(msg));

  2290.         if (std::strcmp(method, "exiting") == 0)

  2291.             return handleOscMessageExiting();

  2292. 

  2293.         carla_stdout("CarlaPluginDSSI::handleOscMessage() - unknown method '%s'", method);

  2294.     }

  2295. 

  2296.     void handleOscMessageConfigure(const int argc, const lo_arg* const* const argv, const char* const types)

  2297.     {

  2298.         carla_debug("CarlaPluginDSSI::handleMsgConfigure()");

  2299.         CARLA_PLUGIN_DSSI_OSC_CHECK_OSC_TYPES(2, "ss");

  2300. 

  2301.         const char* const key   = (const char*)&argv[0]->s;

  2302.         const char* const value = (const char*)&argv[1]->s;

  2303. 

  2304.         setCustomData(CUSTOM_DATA_TYPE_STRING, key, value, false);

  2305.     }

  2306. 

  2307.     void handleOscMessageControl(const int argc, const lo_arg* const* const argv, const char* const types)

  2308.     {

  2309.         carla_debug("CarlaPluginDSSI::handleMsgControl()");

  2310.         CARLA_PLUGIN_DSSI_OSC_CHECK_OSC_TYPES(2, "if");

  2311. 

  2312.         const int32_t rindex = argv[0]->i;

  2313.         const float   value  = argv[1]->f;

  2314. 

  2315.         setParameterValueByRealIndex(rindex, value, false, true, true);

  2316.     }

  2317. 

  2318.     void handleOscMessageProgram(const int argc, const lo_arg* const* const argv, const char* const types)

  2319.     {

  2320.         carla_debug("CarlaPluginDSSI::handleMsgProgram()");

  2321.         CARLA_PLUGIN_DSSI_OSC_CHECK_OSC_TYPES(2, "ii");

  2322. 

  2323.         const int32_t bank    = argv[0]->i;

  2324.         const int32_t program = argv[1]->i;

  2325. 

  2326.         CARLA_SAFE_ASSERT_RETURN(bank >= 0,);

  2327.         CARLA_SAFE_ASSERT_RETURN(program >= 0,);

  2328. 

  2329.         setMidiProgramById(static_cast<uint32_t>(bank), static_cast<uint32_t>(program), false, true, true);

  2330.     }

  2331. 

  2332.     void handleOscMessageMIDI(const int argc, const lo_arg* const* const argv, const char* const types)

  2333.     {

  2334.         carla_debug("CarlaPluginDSSI::handleMsgMidi()");

  2335.         CARLA_PLUGIN_DSSI_OSC_CHECK_OSC_TYPES(1, "m");

  2336. 

  2337.         if (getMidiInCount() == 0)

  2338.         {

  2339.             carla_stderr("CarlaPluginDSSI::handleMsgMidi() - received midi when plugin has no midi inputs");

  2340.             return;

  2341.         }

  2342. 

  2343.         const uint8_t* const data = argv[0]->m;

  2344.         uint8_t status  = data[1];

  2345.         uint8_t channel = status & 0x0F;

  2346. 

  2347.         // Fix bad note-off

  2348.         if (MIDI_IS_STATUS_NOTE_ON(status) && data[3] == 0)

  2349.             status = MIDI_STATUS_NOTE_OFF;

  2350. 

  2351.         if (MIDI_IS_STATUS_NOTE_OFF(status))

  2352.         {

  2353.             const uint8_t note = data[2];

  2354. 

  2355.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2356. 

  2357.             sendMidiSingleNote(channel, note, 0, false, true, true);

  2358.         }

  2359.         else if (MIDI_IS_STATUS_NOTE_ON(status))

  2360.         {

  2361.             const uint8_t note = data[2];

  2362.             const uint8_t velo = data[3];

  2363. 

  2364.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2365.             CARLA_SAFE_ASSERT_RETURN(velo < MAX_MIDI_VALUE,);

  2366. 

  2367.             sendMidiSingleNote(channel, note, velo, false, true, true);

  2368.         }

  2369.     }

  2370. 

  2371.     void handleOscMessageUpdate(const int argc, const lo_arg* const* const argv, const char* const types, const lo_address source)

  2372.     {

  2373.         carla_debug("CarlaPluginDSSI::handleMsgUpdate()");

  2374.         CARLA_PLUGIN_DSSI_OSC_CHECK_OSC_TYPES(1, "s");

  2375. 

  2376.         const char* const url = (const char*)&argv[0]->s;

  2377. 

  2378.         // FIXME - remove debug prints later

  2379.         carla_stdout("CarlaPluginDSSI::updateOscData(%p, \"%s\")", source, url);

  2380. 

  2381.         fOscData.clear();

  2382. 

  2383.         const int proto = lo_address_get_protocol(source);

  2384. 

  2385.         {

  2386.             const char* host = lo_address_get_hostname(source);

  2387.             const char* port = lo_address_get_port(source);

  2388.             fOscData.source = lo_address_new_with_proto(proto, host, port);

  2389. 

  2390.             carla_stdout("CarlaPlugin::updateOscData() - source: host \"%s\", port \"%s\"", host, port);

  2391.         }

  2392. 

  2393.         {

  2394.             char* host = lo_url_get_hostname(url);

  2395.             char* port = lo_url_get_port(url);

  2396.             fOscData.path   = carla_strdup_free(lo_url_get_path(url));

  2397.             fOscData.target = lo_address_new_with_proto(proto, host, port);

  2398.             carla_stdout("CarlaPlugin::updateOscData() - target: host \"%s\", port \"%s\", path \"%s\"", host, port, fOscData.path);

  2399. 

  2400.             std::free(host);

  2401.             std::free(port);

  2402.         }

  2403. 

  2404.         osc_send_sample_rate(fOscData, static_cast<float>(pData->engine->getSampleRate()));

  2405. 

  2406.         for (LinkedList<CustomData>::Itenerator it = pData->custom.begin2(); it.valid(); it.next())

  2407.         {

  2408.             const CustomData& customData(it.getValue(kCustomDataFallback));

  2409.             CARLA_SAFE_ASSERT_CONTINUE(customData.isValid());

  2410. 

  2411.             if (std::strcmp(customData.type, CUSTOM_DATA_TYPE_STRING) == 0)

  2412.                 osc_send_configure(fOscData, customData.key, customData.value);

  2413.         }

  2414. 

  2415.         if (pData->prog.current >= 0)

  2416.             osc_send_program(fOscData, static_cast<uint32_t>(pData->prog.current));

  2417. 

  2418.         if (pData->midiprog.current >= 0)

  2419.         {

  2420.             const MidiProgramData& curMidiProg(pData->midiprog.getCurrent());

  2421. 

  2422.             if (getType() == PLUGIN_DSSI)

  2423.                 osc_send_program(fOscData, curMidiProg.bank, curMidiProg.program);

  2424.             else

  2425.                 osc_send_midi_program(fOscData, curMidiProg.bank, curMidiProg.program);

  2426.         }

  2427. 

  2428.         for (uint32_t i=0; i < pData->param.count; ++i)

  2429.             osc_send_control(fOscData, pData->param.data[i].rindex, getParameterValue(i));

  2430. 

  2431.         if ((pData->hints & PLUGIN_HAS_CUSTOM_UI) != 0 && pData->engine->getOptions().frontendWinId != 0)

  2432.             pData->transientTryCounter = 1;

  2433. 

  2434.         carla_stdout("CarlaPluginDSSI::updateOscData() - done");

  2435.     }

  2436. 

  2437.     void handleOscMessageExiting()

  2438.     {

  2439.         carla_debug("CarlaPluginDSSI::handleMsgExiting()");

  2440. 

  2441.         // hide UI

  2442.         showCustomUI(false);

  2443. 

  2444.         // tell frontend

  2445.         pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2446.     }

  2447. 

  2448.     // -------------------------------------------------------------------

  2449.     // Post-poned UI Stuff

  2450. 

  2451.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  2452.     {

  2453.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  2454. 

  2455.         if (fOscData.target == nullptr)

  2456.             return;

  2457. 

  2458.         osc_send_control(fOscData, pData->param.data[index].rindex, value);

  2459.     }

  2460. 

  2461.     void uiMidiProgramChange(const uint32_t index) noexcept override

  2462.     {

  2463.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  2464. 

  2465.         if (fOscData.target == nullptr)

  2466.             return;

  2467. 

  2468.         osc_send_program(fOscData, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  2469.     }

  2470. 

  2471.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  2472.     {

  2473.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  2474.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2475.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  2476. 

  2477.         if (fOscData.target == nullptr)

  2478.             return;

  2479. 

  2480. #if 0

  2481.         uint8_t midiData[4];

  2482.         midiData[0] = 0;

  2483.         midiData[1] = uint8_t(MIDI_STATUS_NOTE_ON | (channel & MIDI_CHANNEL_BIT));

  2484.         midiData[2] = note;

  2485.         midiData[3] = velo;

  2486. 

  2487.         osc_send_midi(fOscData, midiData);

  2488. #endif

  2489.     }

  2490. 

  2491.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  2492.     {

  2493.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  2494.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2495. 

  2496.         if (fOscData.target == nullptr)

  2497.             return;

  2498. 

  2499. #if 0

  2500.         uint8_t midiData[4];

  2501.         midiData[0] = 0;

  2502.         midiData[1] = uint8_t(MIDI_STATUS_NOTE_ON | (channel & MIDI_CHANNEL_BIT));

  2503.         midiData[2] = note;

  2504.         midiData[3] = 0;

  2505. 

  2506.         osc_send_midi(fOscData, midiData);

  2507. #endif

  2508.     }

  2509. #endif // HAVE_LIBLO

  2510. 

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

  2512. 

  2513.     const void* getNativeDescriptor() const noexcept override

  2514.     {

  2515.         return fDssiDescriptor;

  2516.     }

  2517. 

  2518. #ifdef HAVE_LIBLO

  2519.     uintptr_t getUiBridgeProcessId() const noexcept override

  2520.     {

  2521.         return fThreadUI.getProcessPID();

  2522.     }

  2523. 

  2524.     const void* getExtraStuff() const noexcept override

  2525.     {

  2526.         return fUiFilename.buffer();

  2527.     }

  2528. #endif

  2529. 

  2530.     // -------------------------------------------------------------------

  2531. 

  2532.     bool init(const char* const filename, const char* const name, const char* const label, const uint options)

  2533.     {

  2534.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2535. 

  2536.         // ---------------------------------------------------------------

  2537.         // first checks

  2538. 

  2539.         if (pData->client != nullptr)

  2540.         {

  2541.             pData->engine->setLastError("Plugin client is already registered");

  2542.             return false;

  2543.         }

  2544. 

  2545.         if (filename == nullptr || filename[0] == '\0')

  2546.         {

  2547.             pData->engine->setLastError("null filename");

  2548.             return false;

  2549.         }

  2550. 

  2551.         if (label == nullptr || label[0] == '\0')

  2552.         {

  2553.             pData->engine->setLastError("null label");

  2554.             return false;

  2555.         }

  2556. 

  2557.         // ---------------------------------------------------------------

  2558.         // open DLL

  2559. 

  2560.         if (! pData->libOpen(filename))

  2561.         {

  2562.             pData->engine->setLastError(pData->libError(filename));

  2563.             return false;

  2564.         }

  2565. 

  2566.         // ---------------------------------------------------------------

  2567.         // get DLL main entry

  2568. 

  2569.         const DSSI_Descriptor_Function descFn = pData->libSymbol<DSSI_Descriptor_Function>("dssi_descriptor");

  2570. 

  2571.         if (descFn == nullptr)

  2572.         {

  2573.             pData->engine->setLastError("Could not find the DSSI Descriptor in the plugin library");

  2574.             return false;

  2575.         }

  2576. 

  2577.         // ---------------------------------------------------------------

  2578.         // get descriptor that matches label

  2579. 

  2580.         for (ulong d=0;; ++d)

  2581.         {

  2582.             try {

  2583.                 fDssiDescriptor = descFn(d);

  2584.             }

  2585.             catch(...) {

  2586.                 carla_stderr2("Caught exception when trying to get DSSI descriptor");

  2587.                 fDescriptor     = nullptr;

  2588.                 fDssiDescriptor = nullptr;

  2589.                 break;

  2590.             }

  2591. 

  2592.             if (fDssiDescriptor == nullptr)

  2593.                 break;

  2594. 

  2595.             fDescriptor = fDssiDescriptor->LADSPA_Plugin;

  2596. 

  2597.             if (fDescriptor == nullptr)

  2598.             {

  2599.                 carla_stderr2("WARNING - Missing LADSPA interface, will not use this plugin");

  2600.                 fDssiDescriptor = nullptr;

  2601.                 break;

  2602.             }

  2603.             if (fDescriptor->Label == nullptr || fDescriptor->Label[0] == '\0')

  2604.             {

  2605.                 carla_stderr2("WARNING - Got an invalid label, will not use this plugin");

  2606.                 fDescriptor     = nullptr;

  2607.                 fDssiDescriptor = nullptr;

  2608.                 break;

  2609.             }

  2610.             if (fDescriptor->run == nullptr)

  2611.             {

  2612.                 carla_stderr2("WARNING - Plugin has no run, cannot use it");

  2613.                 fDescriptor     = nullptr;

  2614.                 fDssiDescriptor = nullptr;

  2615.                 break;

  2616.             }

  2617. 

  2618.             if (std::strcmp(fDescriptor->Label, label) == 0)

  2619.                 break;

  2620.         }

  2621. 

  2622.         if (fDescriptor == nullptr || fDssiDescriptor == nullptr)

  2623.         {

  2624.             pData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  2625.             return false;

  2626.         }

  2627. 

  2628.         // ---------------------------------------------------------------

  2629.         // check if uses global instance

  2630. 

  2631.         if (fDssiDescriptor->run_synth == nullptr && fDssiDescriptor->run_multiple_synths != nullptr)

  2632.         {

  2633.             if (! addUniqueMultiSynth(fDescriptor->Label))

  2634.             {

  2635.                 pData->engine->setLastError("This plugin uses a global instance and can't be used more than once safely");

  2636.                 return false;

  2637.             }

  2638.         }

  2639. 

  2640.         // ---------------------------------------------------------------

  2641.         // get info

  2642. 

  2643.         if (name != nullptr && name[0] != '\0')

  2644.             pData->name = pData->engine->getUniquePluginName(name);

  2645.         else if (fDescriptor->Name != nullptr && fDescriptor->Name[0] != '\0')

  2646.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Name);

  2647.         else

  2648.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Label);

  2649. 

  2650.         pData->filename = carla_strdup(filename);

  2651. 

  2652.         // ---------------------------------------------------------------

  2653.         // register client

  2654. 

  2655.         pData->client = pData->engine->addClient(this);

  2656. 

  2657.         if (pData->client == nullptr || ! pData->client->isOk())

  2658.         {

  2659.             pData->engine->setLastError("Failed to register plugin client");

  2660.             return false;

  2661.         }

  2662. 

  2663.         // ---------------------------------------------------------------

  2664.         // initialize plugin

  2665. 

  2666.         if (! addInstance())

  2667.             return false;

  2668. 

  2669.         // ---------------------------------------------------------------

  2670.         // find latency port index

  2671. 

  2672.         for (uint32_t i=0, iCtrl=0, count=getSafePortCount(); i<count; ++i)

  2673.         {

  2674.             const int portType(fDescriptor->PortDescriptors[i]);

  2675. 

  2676.             if (! LADSPA_IS_PORT_CONTROL(portType))

  2677.                 continue;

  2678. 

  2679.             const uint32_t index(iCtrl++);

  2680. 

  2681.             if (! LADSPA_IS_PORT_OUTPUT(portType))

  2682.                 continue;

  2683. 

  2684.             const char* const portName(fDescriptor->PortNames[i]);

  2685.             CARLA_SAFE_ASSERT_BREAK(portName != nullptr);

  2686. 

  2687.             if (std::strcmp(portName, "latency")  == 0 ||

  2688.                 std::strcmp(portName, "_latency") == 0)

  2689.             {

  2690.                 fLatencyIndex = static_cast<int32_t>(index);

  2691.                 break;

  2692.             }

  2693.         }

  2694. 

  2695.         // ---------------------------------------------------------------

  2696.         // check for custom data extension

  2697. 

  2698.         if (fDssiDescriptor->configure != nullptr)

  2699.         {

  2700.             if (char* const error = fDssiDescriptor->configure(fHandles[0], DSSI_CUSTOMDATA_EXTENSION_KEY, ""))

  2701.             {

  2702.                 if (std::strcmp(error, "true") == 0 && fDssiDescriptor->get_custom_data != nullptr

  2703.                                                     && fDssiDescriptor->set_custom_data != nullptr)

  2704.                     fUsesCustomData = true;

  2705. 

  2706.                 std::free(error);

  2707.             }

  2708.         }

  2709. 

  2710.         // ---------------------------------------------------------------

  2711.         // check if this is dssi-vst

  2712. 

  2713.         fIsDssiVst = CarlaString(filename).contains("dssi-vst", true);

  2714. 

  2715. #ifdef HAVE_LIBLO

  2716.         // ---------------------------------------------------------------

  2717.         // check for gui

  2718. 

  2719.         if (const char* const guiFilename = find_dssi_ui(filename, fDescriptor->Label))

  2720.         {

  2721.             fUiFilename = guiFilename;

  2722.             fThreadUI.setData(guiFilename, fDescriptor->Label);

  2723.         }

  2724. #endif

  2725. 

  2726.         // ---------------------------------------------------------------

  2727.         // set default options

  2728. 

  2729.         pData->options = 0x0;

  2730. 

  2731.         /**/ if (fLatencyIndex >= 0 || fIsDssiVst)

  2732.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2733.          else if (options & PLUGIN_OPTION_FIXED_BUFFERS)

  2734.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2735. 

  2736.         /**/ if (pData->engine->getOptions().forceStereo)

  2737.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2738.          else if (options & PLUGIN_OPTION_FORCE_STEREO)

  2739.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2740. 

  2741.         if (fUsesCustomData)

  2742.             pData->options |= PLUGIN_OPTION_USE_CHUNKS;

  2743. 

  2744.         if (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr)

  2745.         {

  2746.             pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  2747.             pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  2748.             pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  2749.             pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  2750. 

  2751.             if (fDssiDescriptor->get_program != nullptr && fDssiDescriptor->select_program != nullptr)

  2752.                 pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  2753. 

  2754.             if (fDssiDescriptor->run_synth == nullptr)

  2755.                 carla_stderr("WARNING: Plugin can ONLY use run_multiple_synths!");

  2756.         }

  2757. 

  2758.         return true;

  2759.     }

  2760. 

  2761.     // -------------------------------------------------------------------

  2762. 

  2763. private:

  2764.     LinkedList<LADSPA_Handle> fHandles;

  2765.     const LADSPA_Descriptor*  fDescriptor;

  2766.     const DSSI_Descriptor*    fDssiDescriptor;

  2767. 

  2768.     float** fAudioInBuffers;

  2769.     float** fAudioOutBuffers;

  2770.     float*  fExtraStereoBuffer[2]; // used only if forcedStereoIn and audioOut == 2

  2771.     float*  fParamBuffers;

  2772. 

  2773.     snd_seq_event_t fMidiEvents[kPluginMaxMidiEvents];

  2774. 

  2775.     int32_t fLatencyIndex; // -1 if invalid

  2776.     bool    fIsDssiVst;

  2777.     bool    fForcedStereoIn;

  2778.     bool    fForcedStereoOut;

  2779.     bool    fUsesCustomData;

  2780. 

  2781. #ifdef HAVE_LIBLO

  2782.     CarlaOscData      fOscData;

  2783.     CarlaThreadDSSIUI fThreadUI;

  2784.     const char*       fUiFilename;

  2785. #endif

  2786. 

  2787.     // -------------------------------------------------------------------

  2788. 

  2789.     bool addInstance()

  2790.     {

  2791.         LADSPA_Handle handle;

  2792. 

  2793.         try {

  2794.             handle = fDescriptor->instantiate(fDescriptor, static_cast<ulong>(pData->engine->getSampleRate()));

  2795.         } CARLA_SAFE_EXCEPTION_RETURN_ERR("LADSPA instantiate", "Plugin failed to initialize");

  2796. 

  2797.         for (uint32_t i=0, count=pData->param.count; i<count; ++i)

  2798.         {

  2799.             const int32_t rindex(pData->param.data[i].rindex);

  2800.             CARLA_SAFE_ASSERT_CONTINUE(rindex >= 0);

  2801. 

  2802.             try {

  2803.                 fDescriptor->connect_port(handle, static_cast<ulong>(rindex), &fParamBuffers[i]);

  2804.             } CARLA_SAFE_EXCEPTION("LADSPA connect_port");

  2805.         }

  2806. 

  2807.         if (fHandles.append(handle))

  2808.             return true;

  2809. 

  2810.         try {

  2811.             fDescriptor->cleanup(handle);

  2812.         } CARLA_SAFE_EXCEPTION("LADSPA cleanup");

  2813. 

  2814.         pData->engine->setLastError("Out of memory");

  2815.         return false;

  2816.     }

  2817. 

  2818.     uint32_t getSafePortCount() const noexcept

  2819.     {

  2820.         if (fDescriptor->PortCount == 0)

  2821.             return 0;

  2822. 

  2823.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortDescriptors != nullptr, 0);

  2824.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortRangeHints != nullptr, 0);

  2825.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortNames != nullptr, 0);

  2826. 

  2827.         return static_cast<uint32_t>(fDescriptor->PortCount);

  2828.     }

  2829. 

  2830.     bool getSeparatedParameterNameOrUnit(const char* const paramName, char* const strBuf, const bool wantName) const noexcept

  2831.     {

  2832.         if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, true))

  2833.             return true;

  2834.         if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, false))

  2835.             return true;

  2836.         return false;

  2837.     }

  2838. 

  2839.     static bool _getSeparatedParameterNameOrUnitImpl(const char* const paramName, char* const strBuf,

  2840.                                                      const bool wantName, const bool useBracket) noexcept

  2841.     {

  2842.         const char* const sepBracketStart(std::strstr(paramName, useBracket ? " [" : " ("));

  2843. 

  2844.         if (sepBracketStart == nullptr)

  2845.             return false;

  2846. 

  2847.         const char* const sepBracketEnd(std::strstr(sepBracketStart, useBracket ? "]" : ")"));

  2848. 

  2849.         if (sepBracketEnd == nullptr)

  2850.             return false;

  2851. 

  2852.         const std::size_t unitSize(static_cast<std::size_t>(sepBracketEnd-sepBracketStart-2));

  2853. 

  2854.         if (unitSize > 7) // very unlikely to have such big unit

  2855.             return false;

  2856. 

  2857.         const std::size_t sepIndex(std::strlen(paramName)-unitSize-3);

  2858. 

  2859.         // just in case

  2860.         if (sepIndex+2 >= STR_MAX)

  2861.             return false;

  2862. 

  2863.         if (wantName)

  2864.         {

  2865.             std::strncpy(strBuf, paramName, sepIndex);

  2866.             strBuf[sepIndex] = '\0';

  2867.         }

  2868.         else

  2869.         {

  2870.             std::strncpy(strBuf, paramName+(sepIndex+2), unitSize);

  2871.             strBuf[unitSize] = '\0';

  2872.         }

  2873. 

  2874.         return true;

  2875.     }

  2876. 

  2877.     // -------------------------------------------------------------------

  2878. 

  2879.     static LinkedList<const char*> sMultiSynthList;

  2880. 

  2881.     static bool addUniqueMultiSynth(const char* const label) noexcept

  2882.     {

  2883.         CARLA_SAFE_ASSERT_RETURN(label != nullptr && label[0] != '\0', false);

  2884. 

  2885.         const char* dlabel = nullptr;

  2886. 

  2887.         try {

  2888.             dlabel = carla_strdup(label);

  2889.         } catch(...) { return false; }

  2890. 

  2891.         for (LinkedList<const char*>::Itenerator it = sMultiSynthList.begin2(); it.valid(); it.next())

  2892.         {

  2893.             const char* const itLabel(it.getValue());

  2894. 

  2895.             if (std::strcmp(dlabel, itLabel) == 0)

  2896.             {

  2897.                 delete[] dlabel;

  2898.                 return false;

  2899.             }

  2900.         }

  2901. 

  2902.         return sMultiSynthList.append(dlabel);

  2903.     }

  2904. 

  2905.     static void removeUniqueMultiSynth(const char* const label) noexcept

  2906.     {

  2907.         CARLA_SAFE_ASSERT_RETURN(label != nullptr && label[0] != '\0',);

  2908. 

  2909.         for (LinkedList<const char*>::Itenerator it = sMultiSynthList.begin2(); it.valid(); it.next())

  2910.         {

  2911.             const char* const itLabel(it.getValue());

  2912. 

  2913.             if (std::strcmp(label, itLabel) == 0)

  2914.             {

  2915.                 sMultiSynthList.remove(it);

  2916.                 delete[] itLabel;

  2917.                 break;

  2918.             }

  2919.         }

  2920.     }

  2921. 

  2922.     // -------------------------------------------------------------------

  2923. 

  2924.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginDSSI)

  2925. };

  2926. 

  2927. LinkedList<const char*> CarlaPluginDSSI::sMultiSynthList;

  2928. #endif

  2929. 

  2930. // -------------------------------------------------------------------------------------------------------------------

  2931. 

  2932. CarlaPlugin* CarlaPlugin::newDSSI(const Initializer& init)

  2933. {

  2934.     carla_debug("CarlaPlugin::newDSSI({%p, \"%s\", \"%s\", \"%s\", " P_INT64 ", %x})",

  2935.                 init.engine, init.filename, init.name, init.label, init.uniqueId, init.options);

  2936. 

  2937.     init.engine->setLastError("TODO");

  2938.     return nullptr;

  2939. 

  2940. #if 0

  2941.     CarlaPluginDSSI* const plugin(new CarlaPluginDSSI(init.engine, init.id));

  2942. 

  2943.     if (! plugin->init(init.filename, init.name, init.label, init.options))

  2944.     {

  2945.         delete plugin;

  2946.         return nullptr;

  2947.     }

  2948. 

  2949.     return plugin;

  2950. #endif

  2951. }

  2952. 

  2953. // -------------------------------------------------------------------------------------------------------------------

  2954. 

  2955. CARLA_BACKEND_END_NAMESPACE