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Carla/source/backend/plugin/DssiPlugin.cpp

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  1. /*

  2.  * Carla DSSI Plugin

  3.  * Copyright (C) 2011-2013 Filipe Coelho <falktx@falktx.com>

  4.  *

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

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

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

  8.  * the License, or any later version.

  9.  *

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

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

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

  13.  * GNU General Public License for more details.

  14.  *

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

  16.  */

  17. 

  18. #include "CarlaPluginInternal.hpp"

  19. 

  20. #ifdef WANT_DSSI

  21. 

  22. #include "CarlaLadspaUtils.hpp"

  23. #include "dssi/dssi.h"

  24. 

  25. CARLA_BACKEND_START_NAMESPACE

  26. 

  27. #if 0

  28. }

  29. #endif

  30. 

  31. class DssiPlugin : public CarlaPlugin

  32. {

  33. public:

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

  35.         : CarlaPlugin(engine, id),

  36.           fHandle(nullptr),

  37.           fHandle2(nullptr),

  38.           fDescriptor(nullptr),

  39.           fDssiDescriptor(nullptr),

  40.           fAudioInBuffers(nullptr),

  41.           fAudioOutBuffers(nullptr),

  42.           fParamBuffers(nullptr)

  43.     {

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

  45. 

  46.         carla_zeroStruct<snd_seq_event_t>(fMidiEvents, MAX_MIDI_EVENTS);

  47. 

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

  49.     }

  50. 

  51.     ~DssiPlugin() override

  52.     {

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

  54. 

  55.         // close UI

  56.         if (fHints & PLUGIN_HAS_GUI)

  57.         {

  58.             showGui(false);

  59. 

  60.             // Wait a bit first, then force kill

  61.             if (kData->osc.thread.isRunning() && ! kData->osc.thread.wait(kData->engine->getOptions().oscUiTimeout))

  62.             {

  63.                 carla_stderr("DSSI GUI thread still running, forcing termination now");

  64.                 kData->osc.thread.terminate();

  65.             }

  66.         }

  67. 

  68.         kData->singleMutex.lock();

  69.         kData->masterMutex.lock();

  70. 

  71.         if (kData->active)

  72.         {

  73.             deactivate();

  74.             kData->active = false;

  75.         }

  76. 

  77.         if (fDescriptor != nullptr)

  78.         {

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

  80.             {

  81.                 if (fHandle != nullptr)

  82.                     fDescriptor->cleanup(fHandle);

  83.                 if (fHandle2 != nullptr)

  84.                     fDescriptor->cleanup(fHandle2);

  85.             }

  86. 

  87.             fHandle  = nullptr;

  88.             fHandle2 = nullptr;

  89.             fDescriptor = nullptr;

  90.             fDssiDescriptor = nullptr;

  91.         }

  92. 

  93.         clearBuffers();

  94.     }

  95. 

  96.     // -------------------------------------------------------------------

  97.     // Information (base)

  98. 

  99.     PluginType type() const override

  100.     {

  101.         return PLUGIN_DSSI;

  102.     }

  103. 

  104.     PluginCategory category() override

  105.     {

  106.         if (fHints & PLUGIN_IS_SYNTH)

  107.             return PLUGIN_CATEGORY_SYNTH;

  108. 

  109.         return getPluginCategoryFromName(fName);

  110.     }

  111. 

  112.     long uniqueId() const override

  113.     {

  114.         CARLA_ASSERT(fDescriptor != nullptr);

  115. 

  116.         return fDescriptor->UniqueID;

  117.     }

  118. 

  119.     // -------------------------------------------------------------------

  120.     // Information (count)

  121. 

  122.     // nothing

  123. 

  124.     // -------------------------------------------------------------------

  125.     // Information (current data)

  126. 

  127.     int32_t chunkData(void** const dataPtr) override

  128.     {

  129.         CARLA_ASSERT(fOptions & PLUGIN_OPTION_USE_CHUNKS);

  130.         CARLA_ASSERT(fDssiDescriptor != nullptr);

  131.         CARLA_ASSERT(fDssiDescriptor->get_custom_data != nullptr);

  132.         CARLA_ASSERT(fHandle != nullptr);

  133.         CARLA_ASSERT(fHandle2 == nullptr);

  134.         CARLA_ASSERT(dataPtr != nullptr);

  135. 

  136.         unsigned long dataSize = 0;

  137. 

  138.         if (fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->get_custom_data(fHandle, dataPtr, &dataSize) != 0)

  139.             return static_cast<int32_t>(dataSize);

  140. 

  141.         return 0;

  142.     }

  143. 

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

  145.     // Information (per-plugin data)

  146. 

  147.     unsigned int availableOptions() override

  148.     {

  149.         CARLA_ASSERT(fDssiDescriptor != nullptr);

  150. 

  151.         if (fDssiDescriptor == nullptr)

  152.             return 0x0;

  153. 

  154. #ifdef __USE_GNU

  155.         const bool isDssiVst = fFilename.contains("dssi-vst", true);

  156. #else

  157.         const bool isDssiVst = fFilename.contains("dssi-vst");

  158. #endif

  159. 

  160.         unsigned int options = 0x0;

  161. 

  162.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  163. 

  164.         if (isDssiVst)

  165.         {

  166.             if (kData->engine->getOptions().useDssiVstChunks && fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->set_custom_data != nullptr)

  167.                 options |= PLUGIN_OPTION_USE_CHUNKS;

  168.         }

  169.         else

  170.         {

  171.             if (kData->engine->getProccessMode() != PROCESS_MODE_CONTINUOUS_RACK)

  172.             {

  173.                 if (fOptions & PLUGIN_OPTION_FORCE_STEREO)

  174.                     options |= PLUGIN_OPTION_FORCE_STEREO;

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

  176.                     options |= PLUGIN_OPTION_FORCE_STEREO;

  177.             }

  178. 

  179.             options |= PLUGIN_OPTION_FIXED_BUFFER;

  180.         }

  181. 

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

  183.         {

  184.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  185.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  186.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  187.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

  188.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  189.         }

  190. 

  191.         return options;

  192.     }

  193. 

  194.     float getParameterValue(const uint32_t parameterId) override

  195.     {

  196.         CARLA_ASSERT(fParamBuffers != nullptr);

  197.         CARLA_ASSERT(parameterId < kData->param.count);

  198. 

  199.         return fParamBuffers[parameterId];

  200.     }

  201. 

  202.     void getLabel(char* const strBuf) override

  203.     {

  204.         CARLA_ASSERT(fDescriptor != nullptr);

  205. 

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

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

  208.         else

  209.             CarlaPlugin::getLabel(strBuf);

  210.     }

  211. 

  212.     void getMaker(char* const strBuf) override

  213.     {

  214.         CARLA_ASSERT(fDescriptor != nullptr);

  215. 

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

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

  218.         else

  219.             CarlaPlugin::getMaker(strBuf);

  220.     }

  221. 

  222.     void getCopyright(char* const strBuf) override

  223.     {

  224.         CARLA_ASSERT(fDescriptor != nullptr);

  225. 

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

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

  228.         else

  229.             CarlaPlugin::getCopyright(strBuf);

  230.     }

  231. 

  232.     void getRealName(char* const strBuf) override

  233.     {

  234.         CARLA_ASSERT(fDescriptor != nullptr);

  235. 

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

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

  238.         else

  239.             CarlaPlugin::getRealName(strBuf);

  240.     }

  241. 

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

  243.     {

  244.         CARLA_ASSERT(fDescriptor != nullptr);

  245.         CARLA_ASSERT(parameterId < kData->param.count);

  246. 

  247.         const int32_t rindex(kData->param.data[parameterId].rindex);

  248. 

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

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

  251.         else

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

  253.     }

  254. 

  255.     // -------------------------------------------------------------------

  256.     // Set data (state)

  257. 

  258.     // nothing

  259. 

  260.     // -------------------------------------------------------------------

  261.     // Set data (internal stuff)

  262. 

  263.     // nothing

  264. 

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

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

  267. 

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

  269.     {

  270.         CARLA_ASSERT(parameterId < kData->param.count);

  271. 

  272.         const float fixedValue(kData->param.fixValue(parameterId, value));

  273.         fParamBuffers[parameterId] = fixedValue;

  274. 

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

  276.     }

  277. 

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

  279.     {

  280.         CARLA_ASSERT(fDescriptor != nullptr);

  281.         CARLA_ASSERT(fHandle != nullptr);

  282.         CARLA_ASSERT(type != nullptr);

  283.         CARLA_ASSERT(key != nullptr);

  284.         CARLA_ASSERT(value != nullptr);

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

  286. 

  287.         if (type == nullptr)

  288.             return carla_stderr2("DssiPlugin::setCustomData(\"%s\", \"%s\", \"%s\", %s) - type is invalid", type, key, value, bool2str(sendGui));

  289. 

  290.         if (std::strcmp(type, CUSTOM_DATA_STRING) != 0)

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

  292. 

  293.         if (key == nullptr)

  294.             return carla_stderr2("DssiPlugin::setCustomData(\"%s\", \"%s\", \"%s\", %s) - key is null", type, key, value, bool2str(sendGui));

  295. 

  296.         if (value == nullptr)

  297.             return carla_stderr2("DssiPlugin::setCustomData(\"%s\", \"%s\", \"%s\", %s) - value is null", type, key, value, bool2str(sendGui));

  298. 

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

  300.         {

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

  302. 

  303.             if (fHandle2)

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

  305.         }

  306. 

  307.         if (sendGui && kData->osc.data.target != nullptr)

  308.             osc_send_configure(&kData->osc.data, key, value);

  309. 

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

  311.         {

  312.             const ScopedDisabler sd(this);

  313.             reloadPrograms(false);

  314.         }

  315. 

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

  317.     }

  318. 

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

  320.     {

  321.         CARLA_ASSERT(fOptions & PLUGIN_OPTION_USE_CHUNKS);

  322.         CARLA_ASSERT(fDssiDescriptor != nullptr);

  323.         CARLA_ASSERT(fDssiDescriptor->set_custom_data != nullptr);

  324.         CARLA_ASSERT(fHandle != nullptr);

  325.         CARLA_ASSERT(fHandle2 == nullptr);

  326.         CARLA_ASSERT(stringData != nullptr);

  327. 

  328.         if (fDssiDescriptor->set_custom_data == nullptr)

  329.             return;

  330. 

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

  332. 

  333.         CARLA_ASSERT(chunk.size() > 0);

  334. 

  335.         if (chunk.size() > 0)

  336.         {

  337.             const ScopedSingleProcessLocker spl(this, true);

  338.             fDssiDescriptor->set_custom_data(fHandle, chunk.data(), chunk.size());

  339.         }

  340.     }

  341. 

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

  343.     {

  344.         CARLA_ASSERT(fDssiDescriptor != nullptr);

  345.         CARLA_ASSERT(fHandle != nullptr);

  346.         CARLA_ASSERT(index >= -1 && index < static_cast<int32_t>(kData->midiprog.count));

  347. 

  348.         if (index < -1)

  349.             index = -1;

  350.         else if (index > static_cast<int32_t>(kData->midiprog.count))

  351.             return;

  352. 

  353.         if (index >= 0 && fDssiDescriptor != nullptr && fDssiDescriptor->select_program != nullptr)

  354.         {

  355.             const uint32_t bank    = kData->midiprog.data[index].bank;

  356.             const uint32_t program = kData->midiprog.data[index].program;

  357. 

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

  359. 

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

  361. 

  362.             if (fHandle2 != nullptr)

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

  364.         }

  365. 

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

  367.     }

  368. 

  369.     // -------------------------------------------------------------------

  370.     // Set gui stuff

  371. 

  372.     void showGui(const bool yesNo) override

  373.     {

  374.         if (yesNo)

  375.         {

  376.             kData->osc.thread.start();

  377.         }

  378.         else

  379.         {

  380.             if (kData->osc.data.target != nullptr)

  381.             {

  382.                 osc_send_hide(&kData->osc.data);

  383.                 osc_send_quit(&kData->osc.data);

  384.                 kData->osc.data.free();

  385.             }

  386. 

  387.             if (kData->osc.thread.isRunning() && ! kData->osc.thread.wait(kData->engine->getOptions().oscUiTimeout))

  388.                 kData->osc.thread.terminate();

  389.         }

  390.     }

  391. 

  392.     // -------------------------------------------------------------------

  393.     // Plugin state

  394. 

  395.     void reload() override

  396.     {

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

  398.         CARLA_ASSERT(kData->engine != nullptr);

  399.         CARLA_ASSERT(fDescriptor != nullptr);

  400.         CARLA_ASSERT(fDssiDescriptor != nullptr);

  401.         CARLA_ASSERT(fHandle != nullptr);

  402. 

  403.         if (kData->engine == nullptr)

  404.             return;

  405.         if (fDescriptor == nullptr)

  406.             return;

  407.         if (fDssiDescriptor == nullptr)

  408.             return;

  409.         if (fHandle == nullptr)

  410.             return;

  411. 

  412.         const ProcessMode processMode(kData->engine->getProccessMode());

  413. 

  414.         // Safely disable plugin for reload

  415.         const ScopedDisabler sd(this);

  416. 

  417.         if (kData->active)

  418.             deactivate();

  419. 

  420.         clearBuffers();

  421. 

  422.         const float   sampleRate = (float)kData->engine->getSampleRate();

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

  424. 

  425.         uint32_t aIns, aOuts, mIns, params, j;

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

  427. 

  428.         bool forcedStereoIn, forcedStereoOut;

  429.         forcedStereoIn = forcedStereoOut = false;

  430. 

  431.         bool needsCtrlIn, needsCtrlOut;

  432.         needsCtrlIn = needsCtrlOut = false;

  433. 

  434.         if (portCount > 0)

  435.         {

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

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

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

  439. 

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

  441.             {

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

  443. 

  444.                 if (LADSPA_IS_PORT_AUDIO(portType))

  445.                 {

  446.                     if (LADSPA_IS_PORT_INPUT(portType))

  447.                         aIns += 1;

  448.                     else if (LADSPA_IS_PORT_OUTPUT(portType))

  449.                         aOuts += 1;

  450.                 }

  451.                 else if (LADSPA_IS_PORT_CONTROL(portType))

  452.                     params += 1;

  453.             }

  454.         }

  455. 

  456.         if ((fOptions & PLUGIN_OPTION_FORCE_STEREO) != 0 && (aIns == 1 || aOuts == 1))

  457.         {

  458.             if (fHandle2 == nullptr)

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

  460. 

  461.             if (aIns == 1)

  462.             {

  463.                 aIns = 2;

  464.                 forcedStereoIn = true;

  465.             }

  466. 

  467.             if (aOuts == 1)

  468.             {

  469.                 aOuts = 2;

  470.                 forcedStereoOut = true;

  471.             }

  472.         }

  473. 

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

  475.         {

  476.             mIns = 1;

  477.             needsCtrlIn = true;

  478.         }

  479. 

  480.         if (aIns > 0)

  481.         {

  482.             kData->audioIn.createNew(aIns);

  483.             fAudioInBuffers = new float*[aIns];

  484. 

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

  486.                 fAudioInBuffers[i] = nullptr;

  487.         }

  488. 

  489.         if (aOuts > 0)

  490.         {

  491.             kData->audioOut.createNew(aOuts);

  492.             fAudioOutBuffers = new float*[aOuts];

  493.             needsCtrlIn = true;

  494. 

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

  496.                 fAudioOutBuffers[i] = nullptr;

  497.         }

  498. 

  499.         if (params > 0)

  500.         {

  501.             kData->param.createNew(params);

  502.             fParamBuffers = new float[params];

  503. 

  504.             for (uint32_t i=0; i < params; ++i)

  505.                 fParamBuffers[i] = 0.0f;

  506.         }

  507. 

  508.         const uint portNameSize(kData->engine->maxPortNameSize());

  509.         CarlaString portName;

  510. 

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

  512.         {

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

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

  515. 

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

  517. 

  518.             if (LADSPA_IS_PORT_AUDIO(portType))

  519.             {

  520.                 portName.clear();

  521. 

  522.                 if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  523.                 {

  524.                     portName  = fName;

  525.                     portName += ":";

  526.                 }

  527. 

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

  529.                 portName.truncate(portNameSize);

  530. 

  531.                 if (LADSPA_IS_PORT_INPUT(portType))

  532.                 {

  533.                     j = iAudioIn++;

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

  535.                     kData->audioIn.ports[j].rindex = i;

  536. 

  537.                     if (forcedStereoIn)

  538.                     {

  539.                         portName += "_2";

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

  541.                         kData->audioIn.ports[1].rindex = i;

  542.                     }

  543.                 }

  544.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  545.                 {

  546.                     j = iAudioOut++;

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

  548.                     kData->audioOut.ports[j].rindex = i;

  549. 

  550.                     if (forcedStereoOut)

  551.                     {

  552.                         portName += "_2";

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

  554.                         kData->audioOut.ports[1].rindex = i;

  555.                     }

  556.                 }

  557.                 else

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

  559.             }

  560.             else if (LADSPA_IS_PORT_CONTROL(portType))

  561.             {

  562.                 j = iCtrl++;

  563.                 kData->param.data[j].index  = j;

  564.                 kData->param.data[j].rindex = i;

  565.                 kData->param.data[j].hints  = 0x0;

  566.                 kData->param.data[j].midiChannel = 0;

  567.                 kData->param.data[j].midiCC = -1;

  568. 

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

  570. 

  571.                 // min value

  572.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  573.                     min = portRangeHints.LowerBound;

  574.                 else

  575.                     min = 0.0f;

  576. 

  577.                 // max value

  578.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  579.                     max = portRangeHints.UpperBound;

  580.                 else

  581.                     max = 1.0f;

  582. 

  583.                 if (min > max)

  584.                     max = min;

  585.                 else if (max < min)

  586.                     min = max;

  587. 

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

  589.                 {

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

  591.                     max = min + 0.1f;

  592.                 }

  593. 

  594.                 // default value

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

  596. 

  597.                 if (def < min)

  598.                     def = min;

  599.                 else if (def > max)

  600.                     def = max;

  601. 

  602.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  603.                 {

  604.                     min *= sampleRate;

  605.                     max *= sampleRate;

  606.                     def *= sampleRate;

  607.                     kData->param.data[j].hints |= PARAMETER_USES_SAMPLERATE;

  608.                 }

  609. 

  610.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  611.                 {

  612.                     step = max - min;

  613.                     stepSmall = step;

  614.                     stepLarge = step;

  615.                     kData->param.data[j].hints |= PARAMETER_IS_BOOLEAN;

  616.                 }

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

  618.                 {

  619.                     step = 1.0f;

  620.                     stepSmall = 1.0f;

  621.                     stepLarge = 10.0f;

  622.                     kData->param.data[j].hints |= PARAMETER_IS_INTEGER;

  623.                 }

  624.                 else

  625.                 {

  626.                     float range = max - min;

  627.                     step = range/100.0f;

  628.                     stepSmall = range/1000.0f;

  629.                     stepLarge = range/10.0f;

  630.                 }

  631. 

  632.                 if (LADSPA_IS_PORT_INPUT(portType))

  633.                 {

  634.                     kData->param.data[j].type   = PARAMETER_INPUT;

  635.                     kData->param.data[j].hints |= PARAMETER_IS_ENABLED;

  636.                     kData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE;

  637.                     needsCtrlIn = true;

  638. 

  639.                     // MIDI CC value

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

  641.                     {

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

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

  644.                         {

  645.                             int16_t cc = DSSI_CC_NUMBER(controller);

  646.                             if (! MIDI_IS_CONTROL_BANK_SELECT(cc))

  647.                                 kData->param.data[j].midiCC = cc;

  648.                         }

  649.                     }

  650.                 }

  651.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  652.                 {

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

  654.                     {

  655.                         min = 0.0f;

  656.                         max = sampleRate;

  657.                         def = 0.0f;

  658.                         step = 1.0f;

  659.                         stepSmall = 1.0f;

  660.                         stepLarge = 1.0f;

  661. 

  662.                         kData->param.data[j].type  = PARAMETER_LATENCY;

  663.                         kData->param.data[j].hints = 0;

  664.                     }

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

  666.                     {

  667.                         def = sampleRate;

  668.                         step = 1.0f;

  669.                         stepSmall = 1.0f;

  670.                         stepLarge = 1.0f;

  671. 

  672.                         kData->param.data[j].type  = PARAMETER_SAMPLE_RATE;

  673.                         kData->param.data[j].hints = 0;

  674.                     }

  675.                     else

  676.                     {

  677.                         kData->param.data[j].type   = PARAMETER_OUTPUT;

  678.                         kData->param.data[j].hints |= PARAMETER_IS_ENABLED;

  679.                         kData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE;

  680.                         needsCtrlOut = true;

  681.                     }

  682.                 }

  683.                 else

  684.                 {

  685.                     kData->param.data[j].type = PARAMETER_UNKNOWN;

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

  687.                 }

  688. 

  689.                 // extra parameter hints

  690.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

  691.                     kData->param.data[j].hints |= PARAMETER_IS_LOGARITHMIC;

  692. 

  693.                 kData->param.ranges[j].min = min;

  694.                 kData->param.ranges[j].max = max;

  695.                 kData->param.ranges[j].def = def;

  696.                 kData->param.ranges[j].step = step;

  697.                 kData->param.ranges[j].stepSmall = stepSmall;

  698.                 kData->param.ranges[j].stepLarge = stepLarge;

  699. 

  700.                 // Start parameters in their default values

  701.                 fParamBuffers[j] = def;

  702. 

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

  704. 

  705.                 if (fHandle2 != nullptr)

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

  707.             }

  708.             else

  709.             {

  710.                 // Not Audio or Control

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

  712. 

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

  714. 

  715.                 if (fHandle2 != nullptr)

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

  717.             }

  718.         }

  719. 

  720.         if (needsCtrlIn)

  721.         {

  722.             portName.clear();

  723. 

  724.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  725.             {

  726.                 portName  = fName;

  727.                 portName += ":";

  728.             }

  729. 

  730.             portName += "events-in";

  731.             portName.truncate(portNameSize);

  732. 

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

  734.         }

  735. 

  736.         if (needsCtrlOut)

  737.         {

  738.             portName.clear();

  739. 

  740.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  741.             {

  742.                 portName  = fName;

  743.                 portName += ":";

  744.             }

  745. 

  746.             portName += "events-out";

  747.             portName.truncate(portNameSize);

  748. 

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

  750.         }

  751. 

  752.         if (forcedStereoIn || forcedStereoOut)

  753.             fOptions |= PLUGIN_OPTION_FORCE_STEREO;

  754.         else

  755.             fOptions &= ~PLUGIN_OPTION_FORCE_STEREO;

  756. 

  757.         // plugin hints

  758.         fHints = 0x0;

  759. 

  760.         if (fGuiFilename.isNotEmpty())

  761.             fHints |= PLUGIN_HAS_GUI;

  762. 

  763.         if (mIns == 1 && aIns == 0 && aOuts > 0)

  764.             fHints |= PLUGIN_IS_SYNTH;

  765. 

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

  767.             fHints |= PLUGIN_CAN_DRYWET;

  768. 

  769.         if (aOuts > 0)

  770.             fHints |= PLUGIN_CAN_VOLUME;

  771. 

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

  773.             fHints |= PLUGIN_CAN_BALANCE;

  774. 

  775.         // extra plugin hints

  776.         kData->extraHints = 0x0;

  777. 

  778.         if (mIns > 0)

  779.             kData->extraHints |= PLUGIN_HINT_HAS_MIDI_IN;

  780. 

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

  782.             kData->extraHints |= PLUGIN_HINT_CAN_RUN_RACK;

  783. 

  784.         // check latency

  785.         if (fHints & PLUGIN_CAN_DRYWET)

  786.         {

  787.             for (uint32_t i=0; i < kData->param.count; ++i)

  788.             {

  789.                 if (kData->param.data[i].type != PARAMETER_LATENCY)

  790.                     continue;

  791. 

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

  793. 

  794.                 float tmpIn[aIns][2];

  795.                 float tmpOut[aOuts][2];

  796. 

  797.                 for (j=0; j < aIns; ++j)

  798.                 {

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

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

  801. 

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

  803.                 }

  804. 

  805.                 for (j=0; j < aOuts; ++j)

  806.                 {

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

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

  809. 

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

  811.                 }

  812. 

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

  814.                     fDescriptor->activate(fHandle);

  815. 

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

  817. 

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

  819.                     fDescriptor->deactivate(fHandle);

  820. 

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

  822. 

  823.                 if (kData->latency != latency)

  824.                 {

  825.                     kData->latency = latency;

  826.                     kData->client->setLatency(latency);

  827.                     kData->recreateLatencyBuffers();

  828.                 }

  829. 

  830.                 break;

  831.             }

  832.         }

  833. 

  834.         bufferSizeChanged(kData->engine->getBufferSize());

  835.         reloadPrograms(true);

  836. 

  837.         if (kData->active)

  838.             activate();

  839. 

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

  841.     }

  842. 

  843.     void reloadPrograms(const bool init) override

  844.     {

  845.         carla_debug("DssiPlugin::reloadPrograms(%s)", bool2str(init));

  846.         uint32_t i, oldCount  = kData->midiprog.count;

  847.         const int32_t current = kData->midiprog.current;

  848. 

  849.         // Delete old programs

  850.         kData->midiprog.clear();

  851. 

  852.         // Query new programs

  853.         uint32_t count = 0;

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

  855.         {

  856.             while (fDssiDescriptor->get_program(fHandle, count))

  857.                 count++;

  858.         }

  859. 

  860.         if (count > 0)

  861.         {

  862.             kData->midiprog.createNew(count);

  863. 

  864.             // Update data

  865.             for (i=0; i < count; ++i)

  866.             {

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

  868.                 CARLA_ASSERT(pdesc != nullptr);

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

  870. 

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

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

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

  874.             }

  875.         }

  876. 

  877. #ifndef BUILD_BRIDGE

  878.         // Update OSC Names

  879.         if (kData->engine->isOscControlRegistered())

  880.         {

  881.             kData->engine->osc_send_control_set_midi_program_count(fId, count);

  882. 

  883.             for (i=0; i < count; ++i)

  884.                 kData->engine->osc_send_control_set_midi_program_data(fId, i, kData->midiprog.data[i].bank, kData->midiprog.data[i].program, kData->midiprog.data[i].name);

  885.         }

  886. #endif

  887. 

  888.         if (init)

  889.         {

  890.             if (count > 0)

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

  892.         }

  893.         else

  894.         {

  895.             // Check if current program is invalid

  896.             bool programChanged = false;

  897. 

  898.             if (count == oldCount+1)

  899.             {

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

  901.                 kData->midiprog.current = oldCount;

  902.                 programChanged = true;

  903.             }

  904.             else if (current < 0 && count > 0)

  905.             {

  906.                 // programs exist now, but not before

  907.                 kData->midiprog.current = 0;

  908.                 programChanged = true;

  909.             }

  910.             else if (current >= 0 && count == 0)

  911.             {

  912.                 // programs existed before, but not anymore

  913.                 kData->midiprog.current = -1;

  914.                 programChanged = true;

  915.             }

  916.             else if (current >= static_cast<int32_t>(count))

  917.             {

  918.                 // current midi program > count

  919.                 kData->midiprog.current = 0;

  920.                 programChanged = true;

  921.             }

  922.             else

  923.             {

  924.                 // no change

  925.                 kData->midiprog.current = current;

  926.             }

  927. 

  928.             if (programChanged)

  929.                 setMidiProgram(kData->midiprog.current, true, true, true);

  930. 

  931.             kData->engine->callback(CALLBACK_RELOAD_PROGRAMS, fId, 0, 0, 0.0f, nullptr);

  932.         }

  933.     }

  934. 

  935.     // -------------------------------------------------------------------

  936.     // Plugin processing

  937. 

  938.     void activate() override

  939.     {

  940.         CARLA_ASSERT(fDescriptor != nullptr);

  941.         CARLA_ASSERT(fHandle != nullptr);

  942. 

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

  944.         {

  945.             fDescriptor->activate(fHandle);

  946. 

  947.             if (fHandle2 != nullptr)

  948.                 fDescriptor->activate(fHandle2);

  949.         }

  950.     }

  951. 

  952.     void deactivate() override

  953.     {

  954.         CARLA_ASSERT(fDescriptor != nullptr);

  955.         CARLA_ASSERT(fHandle != nullptr);

  956. 

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

  958.         {

  959.             fDescriptor->deactivate(fHandle);

  960. 

  961.             if (fHandle2 != nullptr)

  962.                 fDescriptor->deactivate(fHandle2);

  963.         }

  964.     }

  965. 

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

  967.     {

  968.         uint32_t i, k;

  969. 

  970.         // --------------------------------------------------------------------------------------------------------

  971.         // Check if active

  972. 

  973.         if (! kData->active)

  974.         {

  975.             // disable any output sound

  976.             for (i=0; i < kData->audioOut.count; ++i)

  977.                 carla_zeroFloat(outBuffer[i], frames);

  978. 

  979.             return;

  980.         }

  981. 

  982.         unsigned long midiEventCount = 0;

  983. 

  984.         // --------------------------------------------------------------------------------------------------------

  985.         // Check if needs reset

  986. 

  987.         if (kData->needsReset)

  988.         {

  989.             // TODO!

  990.             if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  991.             {

  992.                 for (unsigned char j=0, l=MAX_MIDI_CHANNELS; j < MAX_MIDI_CHANNELS; ++j)

  993.                 {

  994.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[j]);

  995.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[j+l]);

  996. 

  997.                     fMidiEvents[j].type = SND_SEQ_EVENT_CONTROLLER;

  998.                     fMidiEvents[j].data.control.channel = j;

  999.                     fMidiEvents[j].data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1000. 

  1001.                     fMidiEvents[j+l].type = SND_SEQ_EVENT_CONTROLLER;

  1002.                     fMidiEvents[j+l].data.control.channel = j;

  1003.                     fMidiEvents[j+l].data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1004.                 }

  1005. 

  1006.                 midiEventCount = MAX_MIDI_CHANNELS*2;

  1007.             }

  1008.             else

  1009.             {

  1010.             }

  1011. 

  1012.             if (kData->latency > 0)

  1013.             {

  1014.                 for (i=0; i < kData->audioIn.count; ++i)

  1015.                     carla_zeroFloat(kData->latencyBuffers[i], kData->latency);

  1016.             }

  1017. 

  1018.             kData->needsReset = false;

  1019.         }

  1020. 

  1021.         // --------------------------------------------------------------------------------------------------------

  1022.         // Event Input and Processing

  1023. 

  1024.         if (kData->event.portIn != nullptr)

  1025.         {

  1026.             // ----------------------------------------------------------------------------------------------------

  1027.             // MIDI Input (External)

  1028. 

  1029.             if (kData->extNotes.mutex.tryLock())

  1030.             {

  1031.                 while (midiEventCount < MAX_MIDI_EVENTS && ! kData->extNotes.data.isEmpty())

  1032.                 {

  1033.                     const ExternalMidiNote& note(kData->extNotes.data.getFirst(true));

  1034. 

  1035.                     CARLA_ASSERT(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1036. 

  1037.                     fMidiEvents[midiEventCount].type               = (note.velo > 0) ? SND_SEQ_EVENT_NOTEON : SND_SEQ_EVENT_NOTEOFF;

  1038.                     fMidiEvents[midiEventCount].data.note.channel  = note.channel;

  1039.                     fMidiEvents[midiEventCount].data.note.note     = note.note;

  1040.                     fMidiEvents[midiEventCount].data.note.velocity = note.velo;

  1041. 

  1042.                     midiEventCount += 1;

  1043.                 }

  1044. 

  1045.                 kData->extNotes.mutex.unlock();

  1046. 

  1047.             } // End of MIDI Input (External)

  1048. 

  1049.             // ----------------------------------------------------------------------------------------------------

  1050.             // Event Input (System)

  1051. 

  1052.             bool allNotesOffSent = false;

  1053.             bool sampleAccurate  = (fOptions & PLUGIN_OPTION_FIXED_BUFFER) == 0;

  1054. 

  1055.             uint32_t time, nEvents = kData->event.portIn->getEventCount();

  1056.             uint32_t startTime  = 0;

  1057.             uint32_t timeOffset = 0;

  1058. 

  1059.             uint32_t nextBankId = 0;

  1060.             if (kData->midiprog.current >= 0 && kData->midiprog.count > 0)

  1061.                 nextBankId = kData->midiprog.data[kData->midiprog.current].bank;

  1062. 

  1063.             for (i=0; i < nEvents; ++i)

  1064.             {

  1065.                 const EngineEvent& event = kData->event.portIn->getEvent(i);

  1066. 

  1067.                 time = event.time;

  1068. 

  1069.                 if (time >= frames)

  1070.                     continue;

  1071. 

  1072.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  1073. 

  1074.                 if (time > timeOffset && sampleAccurate)

  1075.                 {

  1076.                     if (processSingle(inBuffer, outBuffer, time - timeOffset, timeOffset, midiEventCount))

  1077.                     {

  1078.                         startTime  = 0;

  1079.                         timeOffset = time;

  1080.                         midiEventCount = 0;

  1081. 

  1082.                         if (kData->midiprog.current >= 0 && kData->midiprog.count > 0)

  1083.                             nextBankId = kData->midiprog.data[kData->midiprog.current].bank;

  1084.                         else

  1085.                             nextBankId = 0;

  1086.                     }

  1087.                     else

  1088.                         startTime += timeOffset;

  1089.                 }

  1090. 

  1091.                 // Control change

  1092.                 switch (event.type)

  1093.                 {

  1094.                 case kEngineEventTypeNull:

  1095.                     break;

  1096. 

  1097.                 case kEngineEventTypeControl:

  1098.                 {

  1099.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1100. 

  1101.                     switch (ctrlEvent.type)

  1102.                     {

  1103.                     case kEngineControlEventTypeNull:

  1104.                         break;

  1105. 

  1106.                     case kEngineControlEventTypeParameter:

  1107.                     {

  1108.                         // Control backend stuff

  1109.                         if (event.channel == kData->ctrlChannel)

  1110.                         {

  1111.                             float value;

  1112. 

  1113.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (fHints & PLUGIN_CAN_DRYWET) > 0)

  1114.                             {

  1115.                                 value = ctrlEvent.value;

  1116.                                 setDryWet(value, false, false);

  1117.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1118.                                 continue;

  1119.                             }

  1120. 

  1121.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (fHints & PLUGIN_CAN_VOLUME) > 0)

  1122.                             {

  1123.                                 value = ctrlEvent.value*127.0f/100.0f;

  1124.                                 setVolume(value, false, false);

  1125.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1126.                                 continue;

  1127.                             }

  1128. 

  1129.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (fHints & PLUGIN_CAN_BALANCE) > 0)

  1130.                             {

  1131.                                 float left, right;

  1132.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1133. 

  1134.                                 if (value < 0.0f)

  1135.                                 {

  1136.                                     left  = -1.0f;

  1137.                                     right = (value*2.0f)+1.0f;

  1138.                                 }

  1139.                                 else if (value > 0.0f)

  1140.                                 {

  1141.                                     left  = (value*2.0f)-1.0f;

  1142.                                     right = 1.0f;

  1143.                                 }

  1144.                                 else

  1145.                                 {

  1146.                                     left  = -1.0f;

  1147.                                     right = 1.0f;

  1148.                                 }

  1149. 

  1150.                                 setBalanceLeft(left, false, false);

  1151.                                 setBalanceRight(right, false, false);

  1152.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1153.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1154.                                 continue;

  1155.                             }

  1156.                         }

  1157. 

  1158.                         // Control plugin parameters

  1159.                         for (k=0; k < kData->param.count; ++k)

  1160.                         {

  1161.                             if (kData->param.data[k].midiChannel != event.channel)

  1162.                                 continue;

  1163.                             if (kData->param.data[k].midiCC != ctrlEvent.param)

  1164.                                 continue;

  1165.                             if (kData->param.data[k].type != PARAMETER_INPUT)

  1166.                                 continue;

  1167.                             if ((kData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1168.                                 continue;

  1169. 

  1170.                             float value;

  1171. 

  1172.                             if (kData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1173.                             {

  1174.                                 value = (ctrlEvent.value < 0.5f) ? kData->param.ranges[k].min : kData->param.ranges[k].max;

  1175.                             }

  1176.                             else

  1177.                             {

  1178.                                 value = kData->param.ranges[i].unnormalizeValue(ctrlEvent.value);

  1179. 

  1180.                                 if (kData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1181.                                     value = std::rint(value);

  1182.                             }

  1183. 

  1184.                             setParameterValue(k, value, false, false, false);

  1185.                             postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1186.                         }

  1187. 

  1188.                         break;

  1189.                     }

  1190. 

  1191.                     case kEngineControlEventTypeMidiBank:

  1192.                         if (event.channel == kData->ctrlChannel && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1193.                             nextBankId = ctrlEvent.param;

  1194.                         break;

  1195. 

  1196.                     case kEngineControlEventTypeMidiProgram:

  1197.                         if (event.channel == kData->ctrlChannel && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1198.                         {

  1199.                             const uint32_t nextProgramId = ctrlEvent.param;

  1200. 

  1201.                             for (k=0; k < kData->midiprog.count; ++k)

  1202.                             {

  1203.                                 if (kData->midiprog.data[k].bank == nextBankId && kData->midiprog.data[k].program == nextProgramId)

  1204.                                 {

  1205.                                     setMidiProgram(k, false, false, false);

  1206.                                     postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0f);

  1207.                                     break;

  1208.                                 }

  1209.                             }

  1210.                         }

  1211.                         break;

  1212. 

  1213.                     case kEngineControlEventTypeAllSoundOff:

  1214.                         if (event.channel == kData->ctrlChannel)

  1215.                         {

  1216.                             if (! allNotesOffSent)

  1217.                             {

  1218.                                 sendMidiAllNotesOff();

  1219.                                 allNotesOffSent = true;

  1220.                             }

  1221. 

  1222.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 0.0f);

  1223.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 1.0f);

  1224.                         }

  1225. 

  1226.                         if (midiEventCount >= MAX_MIDI_EVENTS)

  1227.                             continue;

  1228. 

  1229.                         if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1230.                         {

  1231.                             carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1232. 

  1233.                             fMidiEvents[midiEventCount].time.tick = sampleAccurate ? startTime : time;

  1234. 

  1235.                             fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CONTROLLER;

  1236.                             fMidiEvents[midiEventCount].data.control.channel = event.channel;

  1237.                             fMidiEvents[midiEventCount].data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1238. 

  1239.                             midiEventCount += 1;

  1240.                         }

  1241. 

  1242.                         break;

  1243. 

  1244.                     case kEngineControlEventTypeAllNotesOff:

  1245.                         if (event.channel == kData->ctrlChannel)

  1246.                         {

  1247.                             if (! allNotesOffSent)

  1248.                             {

  1249.                                 allNotesOffSent = true;

  1250.                                 sendMidiAllNotesOff();

  1251.                             }

  1252.                         }

  1253. 

  1254.                         if (midiEventCount >= MAX_MIDI_EVENTS)

  1255.                             continue;

  1256. 

  1257.                         if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1258.                         {

  1259.                             carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1260. 

  1261.                             fMidiEvents[midiEventCount].time.tick = sampleAccurate ? startTime : time;

  1262. 

  1263.                             fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CONTROLLER;

  1264.                             fMidiEvents[midiEventCount].data.control.channel = event.channel;

  1265.                             fMidiEvents[midiEventCount].data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1266. 

  1267.                             midiEventCount += 1;

  1268.                         }

  1269. 

  1270.                         break;

  1271.                     }

  1272. 

  1273.                     break;

  1274.                 }

  1275. 

  1276.                 case kEngineEventTypeMidi:

  1277.                 {

  1278.                     if (midiEventCount >= MAX_MIDI_EVENTS)

  1279.                         continue;

  1280. 

  1281.                     const EngineMidiEvent& midiEvent = event.midi;

  1282. 

  1283.                     uint8_t status  = MIDI_GET_STATUS_FROM_DATA(midiEvent.data);

  1284.                     uint8_t channel = event.channel;

  1285. 

  1286.                     // Fix bad note-off (per DSSI spec)

  1287.                     if (MIDI_IS_STATUS_NOTE_ON(status) && midiEvent.data[2] == 0)

  1288.                         status -= 0x10;

  1289. 

  1290.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1291. 

  1292.                     fMidiEvents[midiEventCount].time.tick = sampleAccurate ? startTime : time;

  1293. 

  1294.                     if (MIDI_IS_STATUS_NOTE_OFF(status))

  1295.                     {

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

  1297. 

  1298.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_NOTEOFF;

  1299.                         fMidiEvents[midiEventCount].data.note.channel = channel;

  1300.                         fMidiEvents[midiEventCount].data.note.note    = note;

  1301. 

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

  1303.                     }

  1304.                     else if (MIDI_IS_STATUS_NOTE_ON(status))

  1305.                     {

  1306.                         const uint8_t note = midiEvent.data[1];

  1307.                         const uint8_t velo = midiEvent.data[2];

  1308. 

  1309.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_NOTEON;

  1310.                         fMidiEvents[midiEventCount].data.note.channel  = channel;

  1311.                         fMidiEvents[midiEventCount].data.note.note     = note;

  1312.                         fMidiEvents[midiEventCount].data.note.velocity = velo;

  1313. 

  1314.                         postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1315.                     }

  1316.                     else if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) != 0)

  1317.                     {

  1318.                         const uint8_t note     = midiEvent.data[1];

  1319.                         const uint8_t pressure = midiEvent.data[2];

  1320. 

  1321.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_KEYPRESS;

  1322.                         fMidiEvents[midiEventCount].data.note.channel  = channel;

  1323.                         fMidiEvents[midiEventCount].data.note.note     = note;

  1324.                         fMidiEvents[midiEventCount].data.note.velocity = pressure;

  1325.                     }

  1326.                     else if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (fOptions & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0)

  1327.                     {

  1328.                         const uint8_t control = midiEvent.data[1];

  1329.                         const uint8_t value   = midiEvent.data[2];

  1330. 

  1331.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CONTROLLER;

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

  1333.                         fMidiEvents[midiEventCount].data.control.param   = control;

  1334.                         fMidiEvents[midiEventCount].data.control.value   = value;

  1335.                     }

  1336.                     else if (MIDI_IS_STATUS_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) != 0)

  1337.                     {

  1338.                         const uint8_t pressure = midiEvent.data[1];

  1339. 

  1340.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CHANPRESS;

  1341.                         fMidiEvents[midiEventCount].data.control.channel = channel;

  1342.                         fMidiEvents[midiEventCount].data.control.value   = pressure;

  1343.                     }

  1344.                     else if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (fOptions & PLUGIN_OPTION_SEND_PITCHBEND) != 0)

  1345.                     {

  1346.                         const uint8_t lsb = midiEvent.data[1];

  1347.                         const uint8_t msb = midiEvent.data[2];

  1348. 

  1349.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_PITCHBEND;

  1350.                         fMidiEvents[midiEventCount].data.control.channel = channel;

  1351.                         fMidiEvents[midiEventCount].data.control.value   = ((msb << 7) | lsb) - 8192;

  1352.                     }

  1353.                     else

  1354.                         continue;

  1355. 

  1356.                     midiEventCount += 1;

  1357. 

  1358.                     break;

  1359.                 }

  1360.                 }

  1361.             }

  1362. 

  1363.             kData->postRtEvents.trySplice();

  1364. 

  1365.             if (frames > timeOffset)

  1366.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset, midiEventCount);

  1367. 

  1368.         } // End of Event Input and Processing

  1369. 

  1370.         // --------------------------------------------------------------------------------------------------------

  1371.         // Plugin processing (no events)

  1372. 

  1373.         else

  1374.         {

  1375.             processSingle(inBuffer, outBuffer, frames, 0, midiEventCount);

  1376. 

  1377.         } // End of Plugin processing (no events)

  1378. 

  1379.         CARLA_PROCESS_CONTINUE_CHECK;

  1380. 

  1381.         // --------------------------------------------------------------------------------------------------------

  1382.         // Control Output

  1383. 

  1384.         if (kData->event.portOut != nullptr)

  1385.         {

  1386.             uint8_t  channel;

  1387.             uint16_t param;

  1388.             float    value;

  1389. 

  1390.             for (k=0; k < kData->param.count; ++k)

  1391.             {

  1392.                 if (kData->param.data[k].type != PARAMETER_OUTPUT)

  1393.                     continue;

  1394. 

  1395.                 kData->param.ranges[k].fixValue(fParamBuffers[k]);

  1396. 

  1397.                 if (kData->param.data[k].midiCC > 0)

  1398.                 {

  1399.                     channel = kData->param.data[k].midiChannel;

  1400.                     param   = static_cast<uint16_t>(kData->param.data[k].midiCC);

  1401.                     value   = kData->param.ranges[k].normalizeValue(fParamBuffers[k]);

  1402.                     kData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value);

  1403.                 }

  1404.             }

  1405. 

  1406.         } // End of Control Output

  1407.     }

  1408. 

  1409.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset, const unsigned long midiEventCount)

  1410.     {

  1411.         CARLA_ASSERT(frames > 0);

  1412. 

  1413.         if (frames == 0)

  1414.             return false;

  1415. 

  1416.         if (kData->audioIn.count > 0)

  1417.         {

  1418.             CARLA_ASSERT(inBuffer != nullptr);

  1419.             if (inBuffer == nullptr)

  1420.                 return false;

  1421.         }

  1422.         if (kData->audioOut.count > 0)

  1423.         {

  1424.             CARLA_ASSERT(outBuffer != nullptr);

  1425.             if (outBuffer == nullptr)

  1426.                 return false;

  1427.         }

  1428. 

  1429.         uint32_t i, k;

  1430. 

  1431.         // --------------------------------------------------------------------------------------------------------

  1432.         // Try lock, silence otherwise

  1433. 

  1434.         if (kData->engine->isOffline())

  1435.         {

  1436.             kData->singleMutex.lock();

  1437.         }

  1438.         else if (! kData->singleMutex.tryLock())

  1439.         {

  1440.             for (i=0; i < kData->audioOut.count; ++i)

  1441.             {

  1442.                 for (k=0; k < frames; ++k)

  1443.                     outBuffer[i][k+timeOffset] = 0.0f;

  1444.             }

  1445. 

  1446.             return false;

  1447.         }

  1448. 

  1449.         // --------------------------------------------------------------------------------------------------------

  1450.         // Reset audio buffers

  1451. 

  1452.         for (i=0; i < kData->audioIn.count; ++i)

  1453.             carla_copyFloat(fAudioInBuffers[i], inBuffer[i]+timeOffset, frames);

  1454.         for (i=0; i < kData->audioOut.count; ++i)

  1455.             carla_zeroFloat(fAudioOutBuffers[i], frames);

  1456. 

  1457.         // --------------------------------------------------------------------------------------------------------

  1458.         // Run plugin

  1459. 

  1460.         if (fDssiDescriptor->run_synth != nullptr)

  1461.         {

  1462.             fDssiDescriptor->run_synth(fHandle, frames, fMidiEvents, midiEventCount);

  1463. 

  1464.             if (fHandle2 != nullptr)

  1465.                 fDssiDescriptor->run_synth(fHandle2, frames, fMidiEvents, midiEventCount);

  1466.         }

  1467.         else if (fDssiDescriptor->run_multiple_synths != nullptr)

  1468.         {

  1469.             unsigned long instances = (fHandle2 != nullptr) ? 2 : 1;

  1470.             LADSPA_Handle handlePtr[2] = { fHandle, fHandle2 };

  1471.             snd_seq_event_t* midiEventsPtr[2] = { fMidiEvents, fMidiEvents };

  1472.             unsigned long midiEventCountPtr[2] = { midiEventCount, midiEventCount };

  1473.             fDssiDescriptor->run_multiple_synths(instances, handlePtr, frames, midiEventsPtr, midiEventCountPtr);

  1474.         }

  1475.         else

  1476.         {

  1477.             fDescriptor->run(fHandle, frames);

  1478. 

  1479.             if (fHandle2 != nullptr)

  1480.                 fDescriptor->run(fHandle2, frames);

  1481.         }

  1482. 

  1483.         // --------------------------------------------------------------------------------------------------------

  1484.         // Post-processing (dry/wet, volume and balance)

  1485. 

  1486.         {

  1487.             const bool doDryWet  = (fHints & PLUGIN_CAN_DRYWET) != 0 && kData->postProc.dryWet != 1.0f;

  1488.             const bool doBalance = (fHints & PLUGIN_CAN_BALANCE) != 0 && (kData->postProc.balanceLeft != -1.0f || kData->postProc.balanceRight != 1.0f);

  1489. 

  1490.             bool isPair;

  1491.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1492. 

  1493.             for (i=0; i < kData->audioOut.count; ++i)

  1494.             {

  1495.                 // Dry/Wet

  1496.                 if (doDryWet)

  1497.                 {

  1498.                     for (k=0; k < frames; ++k)

  1499.                     {

  1500.                         // TODO

  1501.                         //if (k < kData->latency && kData->latency < frames)

  1502.                         //    bufValue = (kData->audioIn.count == 1) ? kData->latencyBuffers[0][k] : kData->latencyBuffers[i][k];

  1503.                         //else

  1504.                         //    bufValue = (kData->audioIn.count == 1) ? inBuffer[0][k-m_latency] : inBuffer[i][k-m_latency];

  1505. 

  1506.                         bufValue = fAudioInBuffers[(kData->audioIn.count == 1) ? 0 : i][k];

  1507.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * kData->postProc.dryWet) + (bufValue * (1.0f - kData->postProc.dryWet));

  1508.                     }

  1509.                 }

  1510. 

  1511.                 // Balance

  1512.                 if (doBalance)

  1513.                 {

  1514.                     isPair = (i % 2 == 0);

  1515. 

  1516.                     if (isPair)

  1517.                     {

  1518.                         CARLA_ASSERT(i+1 < kData->audioOut.count);

  1519.                         carla_copyFloat(oldBufLeft, fAudioOutBuffers[i], frames);

  1520.                     }

  1521. 

  1522.                     float balRangeL = (kData->postProc.balanceLeft  + 1.0f)/2.0f;

  1523.                     float balRangeR = (kData->postProc.balanceRight + 1.0f)/2.0f;

  1524. 

  1525.                     for (k=0; k < frames; ++k)

  1526.                     {

  1527.                         if (isPair)

  1528.                         {

  1529.                             // left

  1530.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1531.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1532.                         }

  1533.                         else

  1534.                         {

  1535.                             // right

  1536.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1537.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1538.                         }

  1539.                     }

  1540.                 }

  1541. 

  1542.                 // Volume (and buffer copy)

  1543.                 {

  1544.                     for (k=0; k < frames; ++k)

  1545.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * kData->postProc.volume;

  1546.                 }

  1547.             }

  1548. 

  1549. #if 0

  1550.             // Latency, save values for next callback, TODO

  1551.             if (kData->latency > 0 && kData->latency < frames)

  1552.             {

  1553.                 for (i=0; i < kData->audioIn.count; ++i)

  1554.                     carla_copyFloat(kData->latencyBuffers[i], inBuffer[i] + (frames - kData->latency), kData->latency);

  1555.             }

  1556. #endif

  1557.         } // End of Post-processing

  1558. 

  1559.         // --------------------------------------------------------------------------------------------------------

  1560. 

  1561.         kData->singleMutex.unlock();

  1562.         return true;

  1563.     }

  1564. 

  1565.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1566.     {

  1567.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1568.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1569. 

  1570.         for (uint32_t i=0; i < kData->audioIn.count; ++i)

  1571.         {

  1572.             if (fAudioInBuffers[i] != nullptr)

  1573.                 delete[] fAudioInBuffers[i];

  1574.             fAudioInBuffers[i] = new float[newBufferSize];

  1575.         }

  1576. 

  1577.         for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1578.         {

  1579.             if (fAudioOutBuffers[i] != nullptr)

  1580.                 delete[] fAudioOutBuffers[i];

  1581.             fAudioOutBuffers[i] = new float[newBufferSize];

  1582.         }

  1583. 

  1584.         if (fHandle2 == nullptr)

  1585.         {

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

  1587.             {

  1588.                 CARLA_ASSERT(fAudioInBuffers[i] != nullptr);

  1589.                 fDescriptor->connect_port(fHandle, kData->audioIn.ports[i].rindex, fAudioInBuffers[i]);

  1590.             }

  1591. 

  1592.             for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1593.             {

  1594.                 CARLA_ASSERT(fAudioOutBuffers[i] != nullptr);

  1595.                 fDescriptor->connect_port(fHandle, kData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  1596.             }

  1597.         }

  1598.         else

  1599.         {

  1600.             if (kData->audioIn.count > 0)

  1601.             {

  1602.                 CARLA_ASSERT(kData->audioIn.count == 2);

  1603.                 CARLA_ASSERT(fAudioInBuffers[0] != nullptr);

  1604.                 CARLA_ASSERT(fAudioInBuffers[1] != nullptr);

  1605. 

  1606.                 fDescriptor->connect_port(fHandle,  kData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  1607.                 fDescriptor->connect_port(fHandle2, kData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  1608.             }

  1609. 

  1610.             if (kData->audioOut.count > 0)

  1611.             {

  1612.                 CARLA_ASSERT(kData->audioOut.count == 2);

  1613.                 CARLA_ASSERT(fAudioOutBuffers[0] != nullptr);

  1614.                 CARLA_ASSERT(fAudioOutBuffers[1] != nullptr);

  1615. 

  1616.                 fDescriptor->connect_port(fHandle,  kData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  1617.                 fDescriptor->connect_port(fHandle2, kData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  1618.             }

  1619.         }

  1620. 

  1621.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1622.     }

  1623. 

  1624.     void sampleRateChanged(const double newSampleRate) override

  1625.     {

  1626.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  1627.         carla_debug("DssiPlugin::sampleRateChanged(%g) - start", newSampleRate);

  1628. 

  1629.         // TODO

  1630.         (void)newSampleRate;

  1631. 

  1632.         carla_debug("DssiPlugin::sampleRateChanged(%g) - end", newSampleRate);

  1633.     }

  1634. 

  1635.     // -------------------------------------------------------------------

  1636.     // Plugin buffers

  1637. 

  1638.     void clearBuffers() override

  1639.     {

  1640.         carla_debug("DssiPlugin::clearBuffers() - start");

  1641. 

  1642.         if (fAudioInBuffers != nullptr)

  1643.         {

  1644.             for (uint32_t i=0; i < kData->audioIn.count; ++i)

  1645.             {

  1646.                 if (fAudioInBuffers[i] != nullptr)

  1647.                 {

  1648.                     delete[] fAudioInBuffers[i];

  1649.                     fAudioInBuffers[i] = nullptr;

  1650.                 }

  1651.             }

  1652. 

  1653.             delete[] fAudioInBuffers;

  1654.             fAudioInBuffers = nullptr;

  1655.         }

  1656. 

  1657.         if (fAudioOutBuffers != nullptr)

  1658.         {

  1659.             for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1660.             {

  1661.                 if (fAudioOutBuffers[i] != nullptr)

  1662.                 {

  1663.                     delete[] fAudioOutBuffers[i];

  1664.                     fAudioOutBuffers[i] = nullptr;

  1665.                 }

  1666.             }

  1667. 

  1668.             delete[] fAudioOutBuffers;

  1669.             fAudioOutBuffers = nullptr;

  1670.         }

  1671. 

  1672.         if (fParamBuffers != nullptr)

  1673.         {

  1674.             delete[] fParamBuffers;

  1675.             fParamBuffers = nullptr;

  1676.         }

  1677. 

  1678.         CarlaPlugin::clearBuffers();

  1679. 

  1680.         carla_debug("DssiPlugin::clearBuffers() - end");

  1681.     }

  1682. 

  1683.     // -------------------------------------------------------------------

  1684.     // Post-poned UI Stuff

  1685. 

  1686.     void uiParameterChange(const uint32_t index, const float value) override

  1687.     {

  1688.         CARLA_ASSERT(index < kData->param.count);

  1689. 

  1690.         if (index >= kData->param.count)

  1691.             return;

  1692.         if (kData->osc.data.target == nullptr)

  1693.             return;

  1694. 

  1695.         osc_send_control(&kData->osc.data, kData->param.data[index].rindex, value);

  1696.     }

  1697. 

  1698.     void uiMidiProgramChange(const uint32_t index) override

  1699.     {

  1700.         CARLA_ASSERT(index < kData->midiprog.count);

  1701. 

  1702.         if (index >= kData->midiprog.count)

  1703.             return;

  1704.         if (kData->osc.data.target == nullptr)

  1705.             return;

  1706. 

  1707.         osc_send_program(&kData->osc.data, kData->midiprog.data[index].bank, kData->midiprog.data[index].program);

  1708.     }

  1709. 

  1710.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) override

  1711.     {

  1712.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1713.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1714.         CARLA_ASSERT(velo > 0 && velo < MAX_MIDI_VALUE);

  1715. 

  1716.         if (channel >= MAX_MIDI_CHANNELS)

  1717.             return;

  1718.         if (note >= MAX_MIDI_NOTE)

  1719.             return;

  1720.         if (velo >= MAX_MIDI_VALUE)

  1721.             return;

  1722.         if (kData->osc.data.target == nullptr)

  1723.             return;

  1724. 

  1725.         uint8_t midiData[4] = { 0 };

  1726.         midiData[1] = MIDI_STATUS_NOTE_ON + channel;

  1727.         midiData[2] = note;

  1728.         midiData[3] = velo;

  1729. 

  1730.         osc_send_midi(&kData->osc.data, midiData);

  1731.     }

  1732. 

  1733.     void uiNoteOff(const uint8_t channel, const uint8_t note) override

  1734.     {

  1735.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1736.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1737. 

  1738.         if (channel >= MAX_MIDI_CHANNELS)

  1739.             return;

  1740.         if (note >= MAX_MIDI_NOTE)

  1741.             return;

  1742.         if (kData->osc.data.target == nullptr)

  1743.             return;

  1744. 

  1745.         uint8_t midiData[4] = { 0 };

  1746.         midiData[1] = MIDI_STATUS_NOTE_OFF + channel;

  1747.         midiData[2] = note;

  1748. 

  1749.         osc_send_midi(&kData->osc.data, midiData);

  1750.     }

  1751. 

  1752.     // -------------------------------------------------------------------

  1753. 

  1754.     const void* getExtraStuff() override

  1755.     {

  1756.         return fGuiFilename.isNotEmpty() ? (const char*)fGuiFilename : nullptr;

  1757.     }

  1758. 

  1759.     bool init(const char* const filename, const char* const name, const char* const label, const char* const guiFilename)

  1760.     {

  1761.         CARLA_ASSERT(kData->engine != nullptr);

  1762.         CARLA_ASSERT(kData->client == nullptr);

  1763.         CARLA_ASSERT(filename != nullptr);

  1764.         CARLA_ASSERT(label != nullptr);

  1765. 

  1766.         // ---------------------------------------------------------------

  1767.         // first checks

  1768. 

  1769.         if (kData->engine == nullptr)

  1770.         {

  1771.             return false;

  1772.         }

  1773. 

  1774.         if (kData->client != nullptr)

  1775.         {

  1776.             kData->engine->setLastError("Plugin client is already registered");

  1777.             return false;

  1778.         }

  1779. 

  1780.         if (filename == nullptr)

  1781.         {

  1782.             kData->engine->setLastError("null filename");

  1783.             return false;

  1784.         }

  1785. 

  1786.         if (label == nullptr)

  1787.         {

  1788.             kData->engine->setLastError("null label");

  1789.             return false;

  1790.         }

  1791. 

  1792.         // ---------------------------------------------------------------

  1793.         // open DLL

  1794. 

  1795.         if (! kData->libOpen(filename))

  1796.         {

  1797.             kData->engine->setLastError(kData->libError(filename));

  1798.             return false;

  1799.         }

  1800. 

  1801.         // ---------------------------------------------------------------

  1802.         // get DLL main entry

  1803. 

  1804.         const DSSI_Descriptor_Function descFn = (DSSI_Descriptor_Function)kData->libSymbol("dssi_descriptor");

  1805. 

  1806.         if (descFn == nullptr)

  1807.         {

  1808.             kData->engine->setLastError("Could not find the DSSI Descriptor in the plugin library");

  1809.             return false;

  1810.         }

  1811. 

  1812.         // ---------------------------------------------------------------

  1813.         // get descriptor that matches label

  1814. 

  1815.         unsigned long i = 0;

  1816.         while ((fDssiDescriptor = descFn(i++)) != nullptr)

  1817.         {

  1818.             fDescriptor = fDssiDescriptor->LADSPA_Plugin;

  1819.             if (fDescriptor != nullptr && fDescriptor->Label != nullptr && std::strcmp(fDescriptor->Label, label) == 0)

  1820.                 break;

  1821.         }

  1822. 

  1823.         if (fDescriptor == nullptr || fDssiDescriptor == nullptr)

  1824.         {

  1825.             kData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  1826.             return false;

  1827.         }

  1828. 

  1829.         // ---------------------------------------------------------------

  1830.         // get info

  1831. 

  1832.         if (name != nullptr)

  1833.             fName = kData->engine->getUniquePluginName(name);

  1834.         else if (fDescriptor->Name != nullptr)

  1835.             fName = kData->engine->getUniquePluginName(fDescriptor->Name);

  1836.         else

  1837.             fName = kData->engine->getUniquePluginName(fDescriptor->Label);

  1838. 

  1839.         fFilename = filename;

  1840. 

  1841.         // ---------------------------------------------------------------

  1842.         // register client

  1843. 

  1844.         kData->client = kData->engine->addClient(this);

  1845. 

  1846.         if (kData->client == nullptr || ! kData->client->isOk())

  1847.         {

  1848.             kData->engine->setLastError("Failed to register plugin client");

  1849.             return false;

  1850.         }

  1851. 

  1852.         // ---------------------------------------------------------------

  1853.         // initialize plugin

  1854. 

  1855.         fHandle = fDescriptor->instantiate(fDescriptor, (unsigned long)kData->engine->getSampleRate());

  1856. 

  1857.         if (fHandle == nullptr)

  1858.         {

  1859.             kData->engine->setLastError("Plugin failed to initialize");

  1860.             return false;

  1861.         }

  1862. 

  1863.         // ---------------------------------------------------------------

  1864.         // gui stuff

  1865. 

  1866.         if (guiFilename != nullptr)

  1867.         {

  1868.             fGuiFilename = guiFilename;

  1869.             kData->osc.thread.setOscData(guiFilename, fDescriptor->Label);

  1870.         }

  1871. 

  1872.         // ---------------------------------------------------------------

  1873.         // load plugin settings

  1874. 

  1875.         {

  1876. #ifdef __USE_GNU

  1877.             const bool isDssiVst = fFilename.contains("dssi-vst", true);

  1878. #else

  1879.             const bool isDssiVst = fFilename.contains("dssi-vst");

  1880. #endif

  1881. 

  1882.             // set default options

  1883.             fOptions = 0x0;

  1884. 

  1885.             fOptions |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1886. 

  1887.             if (kData->engine->getOptions().forceStereo)

  1888.                 fOptions |= PLUGIN_OPTION_FORCE_STEREO;

  1889. 

  1890.             if (isDssiVst)

  1891.             {

  1892.                 fOptions |= PLUGIN_OPTION_FIXED_BUFFER;

  1893. 

  1894.                 if (kData->engine->getOptions().useDssiVstChunks && fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->set_custom_data != nullptr)

  1895.                     fOptions |= PLUGIN_OPTION_USE_CHUNKS;

  1896.             }

  1897. 

  1898.             if (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr)

  1899.             {

  1900.                 fOptions |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1901.                 fOptions |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  1902.                 fOptions |= PLUGIN_OPTION_SEND_PITCHBEND;

  1903.                 fOptions |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1904. 

  1905.                 if (fDssiDescriptor->run_synth == nullptr)

  1906.                     carla_stderr2("Plugin can ONLY use run_multiple_synths!");

  1907.             }

  1908. 

  1909.             // load settings

  1910.             kData->idStr  = "DSSI/";

  1911.             kData->idStr += std::strrchr(filename, OS_SEP)+1;

  1912.             kData->idStr += "/";

  1913.             kData->idStr += label;

  1914.             fOptions = kData->loadSettings(fOptions, availableOptions());

  1915. 

  1916.             // ignore settings, we need this anyway

  1917.             if (isDssiVst)

  1918.                 fOptions |= PLUGIN_OPTION_FIXED_BUFFER;

  1919.         }

  1920. 

  1921.         return true;

  1922.     }

  1923. 

  1924. private:

  1925.     LADSPA_Handle fHandle;

  1926.     LADSPA_Handle fHandle2;

  1927.     const LADSPA_Descriptor* fDescriptor;

  1928.     const DSSI_Descriptor*   fDssiDescriptor;

  1929. 

  1930.     CarlaString fGuiFilename;

  1931. 

  1932.     float** fAudioInBuffers;

  1933.     float** fAudioOutBuffers;

  1934.     float*  fParamBuffers;

  1935.     snd_seq_event_t fMidiEvents[MAX_MIDI_EVENTS];

  1936. 

  1937.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(DssiPlugin)

  1938. };

  1939. 

  1940. CARLA_BACKEND_END_NAMESPACE

  1941. 

  1942. #else // WANT_DSSI

  1943. # warning Building without DSSI support

  1944. #endif

  1945. 

  1946. CARLA_BACKEND_START_NAMESPACE

  1947. 

  1948. CarlaPlugin* CarlaPlugin::newDSSI(const Initializer& init, const char* const guiFilename)

  1949. {

  1950.     carla_debug("CarlaPlugin::newDSSI({%p, \"%s\", \"%s\", \"%s\"}, \"%s\")", init.engine, init.filename, init.name, init.label, guiFilename);

  1951. 

  1952. #ifdef WANT_DSSI

  1953.     DssiPlugin* const plugin(new DssiPlugin(init.engine, init.id));

  1954. 

  1955.     if (! plugin->init(init.filename, init.name, init.label, guiFilename))

  1956.     {

  1957.         delete plugin;

  1958.         return nullptr;

  1959.     }

  1960. 

  1961.     plugin->reload();

  1962. 

  1963.     if (init.engine->getProccessMode() == PROCESS_MODE_CONTINUOUS_RACK && ! CarlaPluginProtectedData::canRunInRack(plugin))

  1964.     {

  1965.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo DSSI plugins, sorry!");

  1966.         delete plugin;

  1967.         return nullptr;

  1968.     }

  1969. 

  1970.     return plugin;

  1971. #else

  1972.     init.engine->setLastError("DSSI support not available");

  1973.     return nullptr;

  1974. #endif

  1975. }

  1976. 

  1977. CARLA_BACKEND_END_NAMESPACE