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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.           fLastChunk(nullptr)

  44.     {

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

  46. 

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

  48. 

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

  50.     }

  51. 

  52.     ~DssiPlugin()

  53.     {

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

  55. 

  56.         // close UI

  57.         if (fHints & PLUGIN_HAS_GUI)

  58.         {

  59.             showGui(false);

  60. 

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

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

  63.             {

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

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

  66.             }

  67.         }

  68. 

  69.         kData->singleMutex.lock();

  70.         kData->masterMutex.lock();

  71. 

  72.         if (kData->active)

  73.         {

  74.             deactivate();

  75.             kData->active = false;

  76.         }

  77. 

  78.         if (fDescriptor != nullptr)

  79.         {

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

  81.             {

  82.                 if (fHandle != nullptr)

  83.                     fDescriptor->cleanup(fHandle);

  84.                 if (fHandle2 != nullptr)

  85.                     fDescriptor->cleanup(fHandle2);

  86.             }

  87. 

  88.             fHandle  = nullptr;

  89.             fHandle2 = nullptr;

  90.             fDescriptor = nullptr;

  91.             fDssiDescriptor = nullptr;

  92.         }

  93. 

  94.         if (fLastChunk != nullptr)

  95.         {

  96.             std::free(fLastChunk);

  97.             fLastChunk = nullptr;

  98.         }

  99. 

  100.         clearBuffers();

  101.     }

  102. 

  103.     // -------------------------------------------------------------------

  104.     // Information (base)

  105. 

  106.     PluginType type() const

  107.     {

  108.         return PLUGIN_DSSI;

  109.     }

  110. 

  111.     PluginCategory category()

  112.     {

  113.         if (fHints & PLUGIN_IS_SYNTH)

  114.             return PLUGIN_CATEGORY_SYNTH;

  115. 

  116.         return getPluginCategoryFromName(fName);

  117.     }

  118. 

  119.     long uniqueId() const

  120.     {

  121.         CARLA_ASSERT(fDescriptor != nullptr);

  122. 

  123.         return (fDescriptor != nullptr) ? static_cast<long>(fDescriptor->UniqueID) : 0;

  124.     }

  125. 

  126.     // -------------------------------------------------------------------

  127.     // Information (current data)

  128. 

  129.     int32_t chunkData(void** const dataPtr)

  130.     {

  131.         CARLA_ASSERT(fOptions & PLUGIN_OPTION_USE_CHUNKS);

  132.         CARLA_ASSERT(fDssiDescriptor != nullptr);

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

  134.         CARLA_ASSERT(fHandle != nullptr);

  135.         CARLA_ASSERT(fHandle2 == nullptr);

  136.         CARLA_ASSERT(dataPtr != nullptr);

  137. 

  138.         unsigned long dataSize = 0;

  139. 

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

  141.             return static_cast<int32_t>(dataSize);

  142. 

  143.         return 0;

  144.     }

  145. 

  146.     // -------------------------------------------------------------------

  147.     // Information (per-plugin data)

  148. 

  149.     unsigned int availableOptions()

  150.     {

  151.         CARLA_ASSERT(fDescriptor != nullptr);

  152. 

  153. #ifdef __USE_GNU

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

  155. #else

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

  157. #endif

  158. 

  159.         unsigned int options = 0x0;

  160. 

  161.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  162. 

  163.         if (isDssiVst)

  164.         {

  165.             if (fDescriptor != nullptr && fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->set_custom_data != nullptr)

  166.                 options |= PLUGIN_OPTION_USE_CHUNKS;

  167.         }

  168.         else

  169.         {

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

  171.             {

  172.                 if (fOptions & PLUGIN_OPTION_FORCE_STEREO)

  173.                     options |= PLUGIN_OPTION_FORCE_STEREO;

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

  175.                     options |= PLUGIN_OPTION_FORCE_STEREO;

  176.             }

  177. 

  178.             options |= PLUGIN_OPTION_FIXED_BUFFER;

  179.         }

  180. 

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

  182.         {

  183.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  184.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  185.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  186.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

  187.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  188.         }

  189. 

  190.         return options;

  191.     }

  192. 

  193.     float getParameterValue(const uint32_t parameterId)

  194.     {

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

  196. 

  197.         return fParamBuffers[parameterId];

  198.     }

  199. 

  200.     void getLabel(char* const strBuf)

  201.     {

  202.         CARLA_ASSERT(fDescriptor != nullptr);

  203. 

  204.         if (fDescriptor != nullptr && fDescriptor->Label != nullptr)

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

  206.         else

  207.             CarlaPlugin::getLabel(strBuf);

  208.     }

  209. 

  210.     void getMaker(char* const strBuf)

  211.     {

  212.         CARLA_ASSERT(fDescriptor != nullptr);

  213. 

  214.         if (fDescriptor != nullptr && fDescriptor->Maker != nullptr)

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

  216.         else

  217.             CarlaPlugin::getMaker(strBuf);

  218.     }

  219. 

  220.     void getCopyright(char* const strBuf)

  221.     {

  222.         CARLA_ASSERT(fDescriptor != nullptr);

  223. 

  224.         if (fDescriptor != nullptr && fDescriptor->Copyright != nullptr)

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

  226.         else

  227.             CarlaPlugin::getCopyright(strBuf);

  228.     }

  229. 

  230.     void getRealName(char* const strBuf)

  231.     {

  232.         CARLA_ASSERT(fDescriptor != nullptr);

  233. 

  234.         if (fDescriptor != nullptr && fDescriptor->Name != nullptr)

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

  236.         else

  237.             CarlaPlugin::getRealName(strBuf);

  238.     }

  239. 

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

  241.     {

  242.         CARLA_ASSERT(fDescriptor != nullptr);

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

  244. 

  245.         const int32_t rindex = kData->param.data[parameterId].rindex;

  246. 

  247.         if (fDescriptor != nullptr && rindex < static_cast<int32_t>(fDescriptor->PortCount))

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

  249.         else

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

  251.     }

  252. 

  253.     // -------------------------------------------------------------------

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

  255. 

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

  257.     {

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

  259. 

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

  261.         fParamBuffers[parameterId] = fixedValue;

  262. 

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

  264.     }

  265. 

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

  267.     {

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

  269.         CARLA_ASSERT(fDescriptor != nullptr);

  270.         CARLA_ASSERT(fHandle != nullptr);

  271.         CARLA_ASSERT(type != nullptr);

  272.         CARLA_ASSERT(key != nullptr);

  273.         CARLA_ASSERT(value != nullptr);

  274. 

  275.         if (type == nullptr)

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

  277. 

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

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

  280. 

  281.         if (key == nullptr)

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

  283. 

  284.         if (value == nullptr)

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

  286. 

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

  288.         {

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

  290. 

  291.             if (fHandle2)

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

  293.         }

  294. 

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

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

  297. 

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

  299.         {

  300.             const ScopedDisabler sd(this);

  301.             reloadPrograms(false);

  302.         }

  303. 

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

  305.     }

  306. 

  307.     void setChunkData(const char* const stringData)

  308.     {

  309.         CARLA_ASSERT(fOptions & PLUGIN_OPTION_USE_CHUNKS);

  310.         CARLA_ASSERT(fDssiDescriptor != nullptr);

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

  312.         CARLA_ASSERT(fHandle != nullptr);

  313.         CARLA_ASSERT(fHandle2 == nullptr);

  314.         CARLA_ASSERT(stringData != nullptr);

  315. 

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

  317.             return;

  318. 

  319.         if (fLastChunk != nullptr)

  320.         {

  321.             std::free(fLastChunk);

  322.             fLastChunk = nullptr;

  323.         }

  324. 

  325.         const size_t size(CarlaString(stringData).exportAsBase64Binary(&fLastChunk));

  326. 

  327.         CARLA_ASSERT(size > 0);

  328.         CARLA_ASSERT(fLastChunk != nullptr);

  329. 

  330.         if (size > 0 && fLastChunk != nullptr)

  331.         {

  332.             const ScopedSingleProcessLocker spl(this, true);

  333.             fDssiDescriptor->set_custom_data(fHandle, fLastChunk, static_cast<unsigned long>(size));

  334.         }

  335.     }

  336. 

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

  338.     {

  339.         CARLA_ASSERT(fDssiDescriptor != nullptr);

  340.         CARLA_ASSERT(fHandle != nullptr);

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

  342. 

  343.         if (index < -1)

  344.             index = -1;

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

  346.             return;

  347. 

  348.         if (fDssiDescriptor != nullptr && fHandle != nullptr && index >= 0)

  349.         {

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

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

  352. 

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

  354. 

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

  356. 

  357.             if (fHandle2 != nullptr)

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

  359.         }

  360. 

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

  362.     }

  363. 

  364.     // -------------------------------------------------------------------

  365.     // Set gui stuff

  366. 

  367.     void showGui(const bool yesNo)

  368.     {

  369.         if (yesNo)

  370.         {

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

  372.         }

  373.         else

  374.         {

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

  376.             {

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

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

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

  380.             }

  381. 

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

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

  384.         }

  385.     }

  386. 

  387.     // -------------------------------------------------------------------

  388.     // Plugin state

  389. 

  390.     void reload()

  391.     {

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

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

  394.         CARLA_ASSERT(fDescriptor != nullptr);

  395.         CARLA_ASSERT(fDssiDescriptor != nullptr);

  396.         CARLA_ASSERT(fHandle != nullptr);

  397. 

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

  399.             return;

  400.         if (fDescriptor == nullptr)

  401.             return;

  402.         if (fDssiDescriptor == nullptr)

  403.             return;

  404.         if (fHandle == nullptr)

  405.             return;

  406. 

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

  408. 

  409.         // Safely disable plugin for reload

  410.         const ScopedDisabler sd(this);

  411. 

  412.         if (kData->active)

  413.             deactivate();

  414. 

  415.         clearBuffers();

  416. 

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

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

  419. 

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

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

  422. 

  423.         bool forcedStereoIn, forcedStereoOut;

  424.         forcedStereoIn = forcedStereoOut = false;

  425. 

  426.         bool needsCtrlIn, needsCtrlOut;

  427.         needsCtrlIn = needsCtrlOut = false;

  428. 

  429.         if (portCount > 0)

  430.         {

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

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

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

  434. 

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

  436.             {

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

  438. 

  439.                 if (LADSPA_IS_PORT_AUDIO(portType))

  440.                 {

  441.                     if (LADSPA_IS_PORT_INPUT(portType))

  442.                         aIns += 1;

  443.                     else if (LADSPA_IS_PORT_OUTPUT(portType))

  444.                         aOuts += 1;

  445.                 }

  446.                 else if (LADSPA_IS_PORT_CONTROL(portType))

  447.                     params += 1;

  448.             }

  449.         }

  450. 

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

  452.         {

  453.             if (fHandle2 == nullptr)

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

  455. 

  456.             if (aIns == 1)

  457.             {

  458.                 aIns = 2;

  459.                 forcedStereoIn = true;

  460.             }

  461. 

  462.             if (aOuts == 1)

  463.             {

  464.                 aOuts = 2;

  465.                 forcedStereoOut = true;

  466.             }

  467.         }

  468. 

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

  470.         {

  471.             mIns = 1;

  472.             needsCtrlIn = true;

  473.         }

  474. 

  475.         if (aIns > 0)

  476.         {

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

  478.             fAudioInBuffers = new float*[aIns];

  479. 

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

  481.                 fAudioInBuffers[i] = nullptr;

  482.         }

  483. 

  484.         if (aOuts > 0)

  485.         {

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

  487.             fAudioOutBuffers = new float*[aOuts];

  488.             needsCtrlIn = true;

  489. 

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

  491.                 fAudioOutBuffers[i] = nullptr;

  492.         }

  493. 

  494.         if (params > 0)

  495.         {

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

  497.             fParamBuffers = new float[params];

  498. 

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

  500.                 fParamBuffers[i] = 0.0f;

  501.         }

  502. 

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

  504.         CarlaString portName;

  505. 

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

  507.         {

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

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

  510. 

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

  512. 

  513.             if (LADSPA_IS_PORT_AUDIO(portType))

  514.             {

  515.                 portName.clear();

  516. 

  517.                 if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  518.                 {

  519.                     portName  = fName;

  520.                     portName += ":";

  521.                 }

  522. 

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

  524.                 portName.truncate(portNameSize);

  525. 

  526.                 if (LADSPA_IS_PORT_INPUT(portType))

  527.                 {

  528.                     j = iAudioIn++;

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

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

  531. 

  532.                     if (forcedStereoIn)

  533.                     {

  534.                         portName += "_2";

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

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

  537.                     }

  538.                 }

  539.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  540.                 {

  541.                     j = iAudioOut++;

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

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

  544. 

  545.                     if (forcedStereoOut)

  546.                     {

  547.                         portName += "_2";

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

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

  550.                     }

  551.                 }

  552.                 else

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

  554.             }

  555.             else if (LADSPA_IS_PORT_CONTROL(portType))

  556.             {

  557.                 j = iCtrl++;

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

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

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

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

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

  563. 

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

  565. 

  566.                 // min value

  567.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  568.                     min = portRangeHints.LowerBound;

  569.                 else

  570.                     min = 0.0f;

  571. 

  572.                 // max value

  573.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  574.                     max = portRangeHints.UpperBound;

  575.                 else

  576.                     max = 1.0f;

  577. 

  578.                 if (min > max)

  579.                     max = min;

  580.                 else if (max < min)

  581.                     min = max;

  582. 

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

  584.                 {

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

  586.                     max = min + 0.1f;

  587.                 }

  588. 

  589.                 // default value

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

  591. 

  592.                 if (def < min)

  593.                     def = min;

  594.                 else if (def > max)

  595.                     def = max;

  596. 

  597.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  598.                 {

  599.                     min *= sampleRate;

  600.                     max *= sampleRate;

  601.                     def *= sampleRate;

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

  603.                 }

  604. 

  605.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  606.                 {

  607.                     step = max - min;

  608.                     stepSmall = step;

  609.                     stepLarge = step;

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

  611.                 }

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

  613.                 {

  614.                     step = 1.0f;

  615.                     stepSmall = 1.0f;

  616.                     stepLarge = 10.0f;

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

  618.                 }

  619.                 else

  620.                 {

  621.                     float range = max - min;

  622.                     step = range/100.0f;

  623.                     stepSmall = range/1000.0f;

  624.                     stepLarge = range/10.0f;

  625.                 }

  626. 

  627.                 if (LADSPA_IS_PORT_INPUT(portType))

  628.                 {

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

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

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

  632.                     needsCtrlIn = true;

  633. 

  634.                     // MIDI CC value

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

  636.                     {

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

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

  639.                         {

  640.                             int16_t cc = DSSI_CC_NUMBER(controller);

  641.                             if (! MIDI_IS_CONTROL_BANK_SELECT(cc))

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

  643.                         }

  644.                     }

  645.                 }

  646.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  647.                 {

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

  649.                     {

  650.                         min = 0.0f;

  651.                         max = sampleRate;

  652.                         def = 0.0f;

  653.                         step = 1.0f;

  654.                         stepSmall = 1.0f;

  655.                         stepLarge = 1.0f;

  656. 

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

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

  659.                     }

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

  661.                     {

  662.                         def = sampleRate;

  663.                         step = 1.0f;

  664.                         stepSmall = 1.0f;

  665.                         stepLarge = 1.0f;

  666. 

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

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

  669.                     }

  670.                     else

  671.                     {

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

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

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

  675.                         needsCtrlOut = true;

  676.                     }

  677.                 }

  678.                 else

  679.                 {

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

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

  682.                 }

  683. 

  684.                 // extra parameter hints

  685.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

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

  687. 

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

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

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

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

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

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

  694. 

  695.                 // Start parameters in their default values

  696.                 fParamBuffers[j] = def;

  697. 

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

  699. 

  700.                 if (fHandle2 != nullptr)

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

  702.             }

  703.             else

  704.             {

  705.                 // Not Audio or Control

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

  707. 

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

  709. 

  710.                 if (fHandle2 != nullptr)

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

  712.             }

  713.         }

  714. 

  715.         if (needsCtrlIn)

  716.         {

  717.             portName.clear();

  718. 

  719.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  720.             {

  721.                 portName  = fName;

  722.                 portName += ":";

  723.             }

  724. 

  725.             portName += "events-in";

  726.             portName.truncate(portNameSize);

  727. 

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

  729.         }

  730. 

  731.         if (needsCtrlOut)

  732.         {

  733.             portName.clear();

  734. 

  735.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  736.             {

  737.                 portName  = fName;

  738.                 portName += ":";

  739.             }

  740. 

  741.             portName += "events-out";

  742.             portName.truncate(portNameSize);

  743. 

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

  745.         }

  746. 

  747.         if (forcedStereoIn || forcedStereoOut)

  748.             fOptions |= PLUGIN_OPTION_FORCE_STEREO;

  749.         else

  750.             fOptions &= ~PLUGIN_OPTION_FORCE_STEREO;

  751. 

  752.         // plugin hints

  753.         const bool hasGUI = (fHints & PLUGIN_HAS_GUI);

  754. 

  755.         fHints = 0x0;

  756. 

  757.         if (hasGUI)

  758.             fHints |= PLUGIN_HAS_GUI;

  759. 

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

  761.             fHints |= PLUGIN_IS_SYNTH;

  762. 

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

  764.             fHints |= PLUGIN_CAN_DRYWET;

  765. 

  766.         if (aOuts > 0)

  767.             fHints |= PLUGIN_CAN_VOLUME;

  768. 

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

  770.             fHints |= PLUGIN_CAN_BALANCE;

  771. 

  772.         // extra plugin hints

  773.         kData->extraHints = 0x0;

  774. 

  775.         if (mIns > 0)

  776.             kData->extraHints |= PLUGIN_HINT_HAS_MIDI_IN;

  777. 

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

  779.             kData->extraHints |= PLUGIN_HINT_CAN_RUN_RACK;

  780. 

  781.         // check latency

  782.         if (fHints & PLUGIN_CAN_DRYWET)

  783.         {

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

  785.             {

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

  787.                     continue;

  788. 

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

  790. 

  791.                 float tmpIn[aIns][2];

  792.                 float tmpOut[aOuts][2];

  793. 

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

  795.                 {

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

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

  798. 

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

  800.                 }

  801. 

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

  803.                 {

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

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

  806. 

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

  808.                 }

  809. 

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

  811.                     fDescriptor->activate(fHandle);

  812. 

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

  814. 

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

  816.                     fDescriptor->deactivate(fHandle);

  817. 

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

  819. 

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

  821.                 {

  822.                     kData->latency = latency;

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

  824.                     kData->recreateLatencyBuffers();

  825.                 }

  826. 

  827.                 break;

  828.             }

  829.         }

  830. 

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

  832.         reloadPrograms(true);

  833. 

  834.         if (kData->active)

  835.             activate();

  836. 

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

  838.     }

  839. 

  840.     void reloadPrograms(const bool init)

  841.     {

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

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

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

  845. 

  846.         // Delete old programs

  847.         kData->midiprog.clear();

  848. 

  849.         // Query new programs

  850.         uint32_t count = 0;

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

  852.         {

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

  854.                 count++;

  855.         }

  856. 

  857.         if (count > 0)

  858.         {

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

  860. 

  861.             // Update data

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

  863.             {

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

  865.                 CARLA_ASSERT(pdesc != nullptr);

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

  867. 

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

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

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

  871.             }

  872.         }

  873. 

  874. #ifndef BUILD_BRIDGE

  875.         // Update OSC Names

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

  877.         {

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

  879. 

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

  881.                 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);

  882.         }

  883. #endif

  884. 

  885.         if (init)

  886.         {

  887.             if (count > 0)

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

  889.         }

  890.         else

  891.         {

  892.             // Check if current program is invalid

  893.             bool programChanged = false;

  894. 

  895.             if (count == oldCount+1)

  896.             {

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

  898.                 kData->midiprog.current = oldCount;

  899.                 programChanged = true;

  900.             }

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

  902.             {

  903.                 // programs exist now, but not before

  904.                 kData->midiprog.current = 0;

  905.                 programChanged = true;

  906.             }

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

  908.             {

  909.                 // programs existed before, but not anymore

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

  911.                 programChanged = true;

  912.             }

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

  914.             {

  915.                 // current midi program > count

  916.                 kData->midiprog.current = 0;

  917.                 programChanged = true;

  918.             }

  919.             else

  920.             {

  921.                 // no change

  922.                 kData->midiprog.current = current;

  923.             }

  924. 

  925.             if (programChanged)

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

  927. 

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

  929.         }

  930.     }

  931. 

  932.     // -------------------------------------------------------------------

  933.     // Plugin processing

  934. 

  935.     void activate()

  936.     {

  937.         CARLA_ASSERT(fDescriptor != nullptr);

  938. 

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

  940.         {

  941.             fDescriptor->activate(fHandle);

  942. 

  943.             if (fHandle2 != nullptr)

  944.                 fDescriptor->activate(fHandle2);

  945.         }

  946.     }

  947. 

  948.     void deactivate()

  949.     {

  950.         CARLA_ASSERT(fDescriptor != nullptr);

  951. 

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

  953.         {

  954.             fDescriptor->deactivate(fHandle);

  955. 

  956.             if (fHandle2 != nullptr)

  957.                 fDescriptor->deactivate(fHandle2);

  958.         }

  959.     }

  960. 

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

  962.     {

  963.         uint32_t i, k;

  964. 

  965.         // --------------------------------------------------------------------------------------------------------

  966.         // Check if active

  967. 

  968.         if (! kData->active)

  969.         {

  970.             // disable any output sound

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

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

  973. 

  974.             return;

  975.         }

  976. 

  977.         unsigned long midiEventCount = 0;

  978. 

  979.         // --------------------------------------------------------------------------------------------------------

  980.         // Check if needs reset

  981. 

  982.         if (kData->needsReset)

  983.         {

  984.             // TODO!

  985.             if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  986.             {

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

  988.                 {

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

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

  991. 

  992.                     fMidiEvents[j].type = SND_SEQ_EVENT_CONTROLLER;

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

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

  995. 

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

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

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

  999.                 }

  1000. 

  1001.                 midiEventCount = MAX_MIDI_CHANNELS*2;

  1002.             }

  1003.             else

  1004.             {

  1005.             }

  1006. 

  1007.             if (kData->latency > 0)

  1008.             {

  1009.                 for (i=0; i < kData->audioIn.count; ++i)

  1010.                     carla_zeroFloat(kData->latencyBuffers[i], kData->latency);

  1011.             }

  1012. 

  1013.             kData->needsReset = false;

  1014.         }

  1015. 

  1016.         // --------------------------------------------------------------------------------------------------------

  1017.         // Event Input and Processing

  1018. 

  1019.         if (kData->event.portIn != nullptr)

  1020.         {

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

  1022.             // MIDI Input (External)

  1023. 

  1024.             if (kData->extNotes.mutex.tryLock())

  1025.             {

  1026.                 while (midiEventCount < MAX_MIDI_EVENTS && ! kData->extNotes.data.isEmpty())

  1027.                 {

  1028.                     const ExternalMidiNote& note = kData->extNotes.data.getFirst(true);

  1029. 

  1030.                     CARLA_ASSERT(note.channel >= 0);

  1031. 

  1032.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1033. 

  1034.                     fMidiEvents[midiEventCount].type               = (note.velo > 0) ? SND_SEQ_EVENT_NOTEON : SND_SEQ_EVENT_NOTEOFF;

  1035.                     fMidiEvents[midiEventCount].data.note.channel  = note.channel;

  1036.                     fMidiEvents[midiEventCount].data.note.note     = note.note;

  1037.                     fMidiEvents[midiEventCount].data.note.velocity = note.velo;

  1038. 

  1039.                     midiEventCount += 1;

  1040.                 }

  1041. 

  1042.                 kData->extNotes.mutex.unlock();

  1043. 

  1044.             } // End of MIDI Input (External)

  1045. 

  1046.             // ----------------------------------------------------------------------------------------------------

  1047.             // Event Input (System)

  1048. 

  1049.             bool allNotesOffSent = false;

  1050.             bool sampleAccurate  = (fOptions & PLUGIN_OPTION_FIXED_BUFFER) == 0;

  1051. 

  1052.             uint32_t time, nEvents = kData->event.portIn->getEventCount();

  1053.             uint32_t startTime  = 0;

  1054.             uint32_t timeOffset = 0;

  1055. 

  1056.             uint32_t nextBankId = 0;

  1057.             if (kData->midiprog.current >= 0 && kData->midiprog.count > 0)

  1058.                 nextBankId = kData->midiprog.data[kData->midiprog.current].bank;

  1059. 

  1060.             for (i=0; i < nEvents; ++i)

  1061.             {

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

  1063. 

  1064.                 time = event.time;

  1065. 

  1066.                 if (time >= frames)

  1067.                     continue;

  1068. 

  1069.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  1070. 

  1071.                 if (time > timeOffset && sampleAccurate)

  1072.                 {

  1073.                     if (processSingle(inBuffer, outBuffer, time - timeOffset, timeOffset, midiEventCount))

  1074.                     {

  1075.                         startTime  = 0;

  1076.                         timeOffset = time;

  1077.                         midiEventCount = 0;

  1078. 

  1079.                         if (kData->midiprog.current >= 0 && kData->midiprog.count > 0)

  1080.                             nextBankId = kData->midiprog.data[kData->midiprog.current].bank;

  1081.                         else

  1082.                             nextBankId = 0;

  1083.                     }

  1084.                     else

  1085.                         startTime += timeOffset;

  1086.                 }

  1087. 

  1088.                 // Control change

  1089.                 switch (event.type)

  1090.                 {

  1091.                 case kEngineEventTypeNull:

  1092.                     break;

  1093. 

  1094.                 case kEngineEventTypeControl:

  1095.                 {

  1096.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1097. 

  1098.                     switch (ctrlEvent.type)

  1099.                     {

  1100.                     case kEngineControlEventTypeNull:

  1101.                         break;

  1102. 

  1103.                     case kEngineControlEventTypeParameter:

  1104.                     {

  1105.                         // Control backend stuff

  1106.                         if (event.channel == kData->ctrlChannel)

  1107.                         {

  1108.                             float value;

  1109. 

  1110.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (fHints & PLUGIN_CAN_DRYWET) > 0)

  1111.                             {

  1112.                                 value = ctrlEvent.value;

  1113.                                 setDryWet(value, false, false);

  1114.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1115.                                 continue;

  1116.                             }

  1117. 

  1118.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (fHints & PLUGIN_CAN_VOLUME) > 0)

  1119.                             {

  1120.                                 value = ctrlEvent.value*127.0f/100.0f;

  1121.                                 setVolume(value, false, false);

  1122.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1123.                                 continue;

  1124.                             }

  1125. 

  1126.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (fHints & PLUGIN_CAN_BALANCE) > 0)

  1127.                             {

  1128.                                 float left, right;

  1129.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1130. 

  1131.                                 if (value < 0.0f)

  1132.                                 {

  1133.                                     left  = -1.0f;

  1134.                                     right = (value*2.0f)+1.0f;

  1135.                                 }

  1136.                                 else if (value > 0.0f)

  1137.                                 {

  1138.                                     left  = (value*2.0f)-1.0f;

  1139.                                     right = 1.0f;

  1140.                                 }

  1141.                                 else

  1142.                                 {

  1143.                                     left  = -1.0f;

  1144.                                     right = 1.0f;

  1145.                                 }

  1146. 

  1147.                                 setBalanceLeft(left, false, false);

  1148.                                 setBalanceRight(right, false, false);

  1149.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1150.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1151.                                 continue;

  1152.                             }

  1153.                         }

  1154. 

  1155.                         // Control plugin parameters

  1156.                         for (k=0; k < kData->param.count; ++k)

  1157.                         {

  1158.                             if (kData->param.data[k].midiChannel != event.channel)

  1159.                                 continue;

  1160.                             if (kData->param.data[k].midiCC != ctrlEvent.param)

  1161.                                 continue;

  1162.                             if (kData->param.data[k].type != PARAMETER_INPUT)

  1163.                                 continue;

  1164.                             if ((kData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1165.                                 continue;

  1166. 

  1167.                             float value;

  1168. 

  1169.                             if (kData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1170.                             {

  1171.                                 value = (ctrlEvent.value < 0.5f) ? kData->param.ranges[k].min : kData->param.ranges[k].max;

  1172.                             }

  1173.                             else

  1174.                             {

  1175.                                 value = kData->param.ranges[i].unnormalizeValue(ctrlEvent.value);

  1176. 

  1177.                                 if (kData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1178.                                     value = std::rint(value);

  1179.                             }

  1180. 

  1181.                             setParameterValue(k, value, false, false, false);

  1182.                             postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1183.                         }

  1184. 

  1185.                         break;

  1186.                     }

  1187. 

  1188.                     case kEngineControlEventTypeMidiBank:

  1189.                         if (event.channel == kData->ctrlChannel && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1190.                             nextBankId = ctrlEvent.param;

  1191.                         break;

  1192. 

  1193.                     case kEngineControlEventTypeMidiProgram:

  1194.                         if (event.channel == kData->ctrlChannel && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1195.                         {

  1196.                             const uint32_t nextProgramId = ctrlEvent.param;

  1197. 

  1198.                             for (k=0; k < kData->midiprog.count; ++k)

  1199.                             {

  1200.                                 if (kData->midiprog.data[k].bank == nextBankId && kData->midiprog.data[k].program == nextProgramId)

  1201.                                 {

  1202.                                     setMidiProgram(k, false, false, false);

  1203.                                     postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0f);

  1204.                                     break;

  1205.                                 }

  1206.                             }

  1207.                         }

  1208.                         break;

  1209. 

  1210.                     case kEngineControlEventTypeAllSoundOff:

  1211.                         if (event.channel == kData->ctrlChannel)

  1212.                         {

  1213.                             if (! allNotesOffSent)

  1214.                             {

  1215.                                 sendMidiAllNotesOff();

  1216.                                 allNotesOffSent = true;

  1217.                             }

  1218. 

  1219.                             if (fDescriptor->deactivate != nullptr)

  1220.                             {

  1221.                                 fDescriptor->deactivate(fHandle);

  1222. 

  1223.                                 if (fHandle2 != nullptr)

  1224.                                     fDescriptor->deactivate(fHandle2);

  1225.                             }

  1226. 

  1227.                             if (fDescriptor->activate != nullptr)

  1228.                             {

  1229.                                 fDescriptor->activate(fHandle);

  1230. 

  1231.                                 if (fHandle2 != nullptr)

  1232.                                     fDescriptor->activate(fHandle2);

  1233.                             }

  1234. 

  1235.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 0.0f);

  1236.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 1.0f);

  1237.                         }

  1238. 

  1239.                         if (midiEventCount >= MAX_MIDI_EVENTS)

  1240.                             continue;

  1241. 

  1242.                         if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1243.                         {

  1244.                             carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1245. 

  1246.                             fMidiEvents[midiEventCount].time.tick = sampleAccurate ? startTime : time;

  1247. 

  1248.                             fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CONTROLLER;

  1249.                             fMidiEvents[midiEventCount].data.control.channel = event.channel;

  1250.                             fMidiEvents[midiEventCount].data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1251. 

  1252.                             midiEventCount += 1;

  1253.                         }

  1254. 

  1255.                         break;

  1256. 

  1257.                     case kEngineControlEventTypeAllNotesOff:

  1258.                         if (event.channel == kData->ctrlChannel)

  1259.                         {

  1260.                             if (! allNotesOffSent)

  1261.                             {

  1262.                                 allNotesOffSent = true;

  1263.                                 sendMidiAllNotesOff();

  1264.                             }

  1265.                         }

  1266. 

  1267.                         if (midiEventCount >= MAX_MIDI_EVENTS)

  1268.                             continue;

  1269. 

  1270.                         if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1271.                         {

  1272.                             carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1273. 

  1274.                             fMidiEvents[midiEventCount].time.tick = sampleAccurate ? startTime : time;

  1275. 

  1276.                             fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CONTROLLER;

  1277.                             fMidiEvents[midiEventCount].data.control.channel = event.channel;

  1278.                             fMidiEvents[midiEventCount].data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1279. 

  1280.                             midiEventCount += 1;

  1281.                         }

  1282. 

  1283.                         break;

  1284.                     }

  1285. 

  1286.                     break;

  1287.                 }

  1288. 

  1289.                 case kEngineEventTypeMidi:

  1290.                 {

  1291.                     if (midiEventCount >= MAX_MIDI_EVENTS)

  1292.                         continue;

  1293. 

  1294.                     const EngineMidiEvent& midiEvent = event.midi;

  1295. 

  1296.                     uint8_t status  = MIDI_GET_STATUS_FROM_DATA(midiEvent.data);

  1297.                     uint8_t channel = event.channel;

  1298. 

  1299.                     // Fix bad note-off (per DSSI spec)

  1300.                     if (MIDI_IS_STATUS_NOTE_ON(status) && midiEvent.data[2] == 0)

  1301.                         status -= 0x10;

  1302. 

  1303.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1304. 

  1305.                     fMidiEvents[midiEventCount].time.tick = sampleAccurate ? startTime : time;

  1306. 

  1307.                     if (MIDI_IS_STATUS_NOTE_OFF(status))

  1308.                     {

  1309.                         const uint8_t note = midiEvent.data[1];

  1310. 

  1311.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_NOTEOFF;

  1312.                         fMidiEvents[midiEventCount].data.note.channel = channel;

  1313.                         fMidiEvents[midiEventCount].data.note.note    = note;

  1314. 

  1315.                         postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0f);

  1316.                     }

  1317.                     else if (MIDI_IS_STATUS_NOTE_ON(status))

  1318.                     {

  1319.                         const uint8_t note = midiEvent.data[1];

  1320.                         const uint8_t velo = midiEvent.data[2];

  1321. 

  1322.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_NOTEON;

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

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

  1325.                         fMidiEvents[midiEventCount].data.note.velocity = velo;

  1326. 

  1327.                         postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1328.                     }

  1329.                     else if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) != 0)

  1330.                     {

  1331.                         const uint8_t note     = midiEvent.data[1];

  1332.                         const uint8_t pressure = midiEvent.data[2];

  1333. 

  1334.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_KEYPRESS;

  1335.                         fMidiEvents[midiEventCount].data.note.channel  = channel;

  1336.                         fMidiEvents[midiEventCount].data.note.note     = note;

  1337.                         fMidiEvents[midiEventCount].data.note.velocity = pressure;

  1338.                     }

  1339.                     else if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (fOptions & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0)

  1340.                     {

  1341.                         const uint8_t control = midiEvent.data[1];

  1342.                         const uint8_t value   = midiEvent.data[2];

  1343. 

  1344.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CONTROLLER;

  1345.                         fMidiEvents[midiEventCount].data.control.channel = channel;

  1346.                         fMidiEvents[midiEventCount].data.control.param   = control;

  1347.                         fMidiEvents[midiEventCount].data.control.value   = value;

  1348.                     }

  1349.                     else if (MIDI_IS_STATUS_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) != 0)

  1350.                     {

  1351.                         const uint8_t pressure = midiEvent.data[1];

  1352. 

  1353.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CHANPRESS;

  1354.                         fMidiEvents[midiEventCount].data.control.channel = channel;

  1355.                         fMidiEvents[midiEventCount].data.control.value   = pressure;

  1356.                     }

  1357.                     else if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (fOptions & PLUGIN_OPTION_SEND_PITCHBEND) != 0)

  1358.                     {

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

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

  1361. 

  1362.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_PITCHBEND;

  1363.                         fMidiEvents[midiEventCount].data.control.channel = channel;

  1364.                         fMidiEvents[midiEventCount].data.control.value   = ((msb << 7) | lsb) - 8192;

  1365.                     }

  1366.                     else

  1367.                         continue;

  1368. 

  1369.                     midiEventCount += 1;

  1370. 

  1371.                     break;

  1372.                 }

  1373.                 }

  1374.             }

  1375. 

  1376.             kData->postRtEvents.trySplice();

  1377. 

  1378.             if (frames > timeOffset)

  1379.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset, midiEventCount);

  1380. 

  1381.         } // End of Event Input and Processing

  1382. 

  1383.         // --------------------------------------------------------------------------------------------------------

  1384.         // Plugin processing (no events)

  1385. 

  1386.         else

  1387.         {

  1388.             processSingle(inBuffer, outBuffer, frames, 0, midiEventCount);

  1389. 

  1390.         } // End of Plugin processing (no events)

  1391. 

  1392.         CARLA_PROCESS_CONTINUE_CHECK;

  1393. 

  1394.         // --------------------------------------------------------------------------------------------------------

  1395.         // Control Output

  1396. 

  1397.         if (kData->event.portOut != nullptr)

  1398.         {

  1399.             uint8_t  channel;

  1400.             uint16_t param;

  1401.             float    value;

  1402. 

  1403.             for (k=0; k < kData->param.count; ++k)

  1404.             {

  1405.                 if (kData->param.data[k].type != PARAMETER_OUTPUT)

  1406.                     continue;

  1407. 

  1408.                 kData->param.ranges[k].fixValue(fParamBuffers[k]);

  1409. 

  1410.                 if (kData->param.data[k].midiCC > 0)

  1411.                 {

  1412.                     channel = kData->param.data[k].midiChannel;

  1413.                     param   = static_cast<uint16_t>(kData->param.data[k].midiCC);

  1414.                     value   = kData->param.ranges[k].normalizeValue(fParamBuffers[k]);

  1415.                     kData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value);

  1416.                 }

  1417.             }

  1418. 

  1419.         } // End of Control Output

  1420. 

  1421.         // --------------------------------------------------------------------------------------------------------

  1422. 

  1423.         //kData->activeBefore = kData->active;

  1424.     }

  1425. 

  1426.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset, const unsigned long midiEventCount)

  1427.     {

  1428.         CARLA_ASSERT(frames > 0);

  1429. 

  1430.         if (frames == 0)

  1431.             return false;

  1432. 

  1433.         if (kData->audioIn.count > 0)

  1434.         {

  1435.             CARLA_ASSERT(inBuffer != nullptr);

  1436.             if (inBuffer == nullptr)

  1437.                 return false;

  1438.         }

  1439.         if (kData->audioOut.count > 0)

  1440.         {

  1441.             CARLA_ASSERT(outBuffer != nullptr);

  1442.             if (outBuffer == nullptr)

  1443.                 return false;

  1444.         }

  1445. 

  1446.         uint32_t i, k;

  1447. 

  1448.         // --------------------------------------------------------------------------------------------------------

  1449.         // Try lock, silence otherwise

  1450. 

  1451.         if (kData->engine->isOffline())

  1452.         {

  1453.             kData->singleMutex.lock();

  1454.         }

  1455.         else if (! kData->singleMutex.tryLock())

  1456.         {

  1457.             for (i=0; i < kData->audioOut.count; ++i)

  1458.             {

  1459.                 for (k=0; k < frames; ++k)

  1460.                     outBuffer[i][k+timeOffset] = 0.0f;

  1461.             }

  1462. 

  1463.             return false;

  1464.         }

  1465. 

  1466.         // --------------------------------------------------------------------------------------------------------

  1467.         // Reset audio buffers

  1468. 

  1469.         for (i=0; i < kData->audioIn.count; ++i)

  1470.             carla_copyFloat(fAudioInBuffers[i], inBuffer[i]+timeOffset, frames);

  1471.         for (i=0; i < kData->audioOut.count; ++i)

  1472.             carla_zeroFloat(fAudioOutBuffers[i], frames);

  1473. 

  1474.         // --------------------------------------------------------------------------------------------------------

  1475.         // Run plugin

  1476. 

  1477.         if (fDssiDescriptor->run_synth != nullptr)

  1478.         {

  1479.             fDssiDescriptor->run_synth(fHandle, frames, fMidiEvents, midiEventCount);

  1480. 

  1481.             if (fHandle2 != nullptr)

  1482.                 fDssiDescriptor->run_synth(fHandle2, frames, fMidiEvents, midiEventCount);

  1483.         }

  1484.         else if (fDssiDescriptor->run_multiple_synths != nullptr)

  1485.         {

  1486.             unsigned long instances = (fHandle2 != nullptr) ? 2 : 1;

  1487.             LADSPA_Handle handlePtr[2] = { fHandle, fHandle2 };

  1488.             snd_seq_event_t* midiEventsPtr[2] = { fMidiEvents, fMidiEvents };

  1489.             unsigned long midiEventCountPtr[2] = { midiEventCount, midiEventCount };

  1490.             fDssiDescriptor->run_multiple_synths(instances, handlePtr, frames, midiEventsPtr, midiEventCountPtr);

  1491.         }

  1492.         else

  1493.         {

  1494.             fDescriptor->run(fHandle, frames);

  1495. 

  1496.             if (fHandle2 != nullptr)

  1497.                 fDescriptor->run(fHandle2, frames);

  1498.         }

  1499. 

  1500.         // --------------------------------------------------------------------------------------------------------

  1501.         // Post-processing (dry/wet, volume and balance)

  1502. 

  1503.         {

  1504.             const bool doDryWet  = (fHints & PLUGIN_CAN_DRYWET) != 0 && kData->postProc.dryWet != 1.0f;

  1505.             const bool doBalance = (fHints & PLUGIN_CAN_BALANCE) != 0 && (kData->postProc.balanceLeft != -1.0f || kData->postProc.balanceRight != 1.0f);

  1506. 

  1507.             bool isPair;

  1508.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1509. 

  1510.             for (i=0; i < kData->audioOut.count; ++i)

  1511.             {

  1512.                 // Dry/Wet

  1513.                 if (doDryWet)

  1514.                 {

  1515.                     for (k=0; k < frames; ++k)

  1516.                     {

  1517.                         // TODO

  1518.                         //if (k < kData->latency && kData->latency < frames)

  1519.                         //    bufValue = (kData->audioIn.count == 1) ? kData->latencyBuffers[0][k] : kData->latencyBuffers[i][k];

  1520.                         //else

  1521.                         //    bufValue = (kData->audioIn.count == 1) ? inBuffer[0][k-m_latency] : inBuffer[i][k-m_latency];

  1522. 

  1523.                         bufValue = fAudioInBuffers[(kData->audioIn.count == 1) ? 0 : i][k];

  1524.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * kData->postProc.dryWet) + (bufValue * (1.0f - kData->postProc.dryWet));

  1525.                     }

  1526.                 }

  1527. 

  1528.                 // Balance

  1529.                 if (doBalance)

  1530.                 {

  1531.                     isPair = (i % 2 == 0);

  1532. 

  1533.                     if (isPair)

  1534.                     {

  1535.                         CARLA_ASSERT(i+1 < kData->audioOut.count);

  1536.                         carla_copyFloat(oldBufLeft, fAudioOutBuffers[i], frames);

  1537.                     }

  1538. 

  1539.                     float balRangeL = (kData->postProc.balanceLeft  + 1.0f)/2.0f;

  1540.                     float balRangeR = (kData->postProc.balanceRight + 1.0f)/2.0f;

  1541. 

  1542.                     for (k=0; k < frames; ++k)

  1543.                     {

  1544.                         if (isPair)

  1545.                         {

  1546.                             // left

  1547.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1548.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1549.                         }

  1550.                         else

  1551.                         {

  1552.                             // right

  1553.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1554.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1555.                         }

  1556.                     }

  1557.                 }

  1558. 

  1559.                 // Volume (and buffer copy)

  1560.                 {

  1561.                     for (k=0; k < frames; ++k)

  1562.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * kData->postProc.volume;

  1563.                 }

  1564.             }

  1565. 

  1566. #if 0

  1567.             // Latency, save values for next callback, TODO

  1568.             if (kData->latency > 0 && kData->latency < frames)

  1569.             {

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

  1571.                     carla_copyFloat(kData->latencyBuffers[i], inBuffer[i] + (frames - kData->latency), kData->latency);

  1572.             }

  1573. #endif

  1574.         } // End of Post-processing

  1575. 

  1576.         // --------------------------------------------------------------------------------------------------------

  1577. 

  1578.         kData->singleMutex.unlock();

  1579.         return true;

  1580.     }

  1581. 

  1582.     void bufferSizeChanged(const uint32_t newBufferSize)

  1583.     {

  1584.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1585.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1586. 

  1587.         for (uint32_t i=0; i < kData->audioIn.count; ++i)

  1588.         {

  1589.             if (fAudioInBuffers[i] != nullptr)

  1590.                 delete[] fAudioInBuffers[i];

  1591.             fAudioInBuffers[i] = new float[newBufferSize];

  1592.         }

  1593. 

  1594.         for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1595.         {

  1596.             if (fAudioOutBuffers[i] != nullptr)

  1597.                 delete[] fAudioOutBuffers[i];

  1598.             fAudioOutBuffers[i] = new float[newBufferSize];

  1599.         }

  1600. 

  1601.         if (fHandle2 == nullptr)

  1602.         {

  1603.             for (uint32_t i=0; i < kData->audioIn.count; ++i)

  1604.             {

  1605.                 CARLA_ASSERT(fAudioInBuffers[i] != nullptr);

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

  1607.             }

  1608. 

  1609.             for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1610.             {

  1611.                 CARLA_ASSERT(fAudioOutBuffers[i] != nullptr);

  1612.                 fDescriptor->connect_port(fHandle, kData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  1613.             }

  1614.         }

  1615.         else

  1616.         {

  1617.             if (kData->audioIn.count > 0)

  1618.             {

  1619.                 CARLA_ASSERT(kData->audioIn.count == 2);

  1620.                 CARLA_ASSERT(fAudioInBuffers[0] != nullptr);

  1621.                 CARLA_ASSERT(fAudioInBuffers[1] != nullptr);

  1622. 

  1623.                 fDescriptor->connect_port(fHandle,  kData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  1624.                 fDescriptor->connect_port(fHandle2, kData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  1625.             }

  1626. 

  1627.             if (kData->audioOut.count > 0)

  1628.             {

  1629.                 CARLA_ASSERT(kData->audioOut.count == 2);

  1630.                 CARLA_ASSERT(fAudioOutBuffers[0] != nullptr);

  1631.                 CARLA_ASSERT(fAudioOutBuffers[1] != nullptr);

  1632. 

  1633.                 fDescriptor->connect_port(fHandle,  kData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  1634.                 fDescriptor->connect_port(fHandle2, kData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  1635.             }

  1636.         }

  1637. 

  1638.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1639.     }

  1640. 

  1641.     void sampleRateChanged(const double newSampleRate)

  1642.     {

  1643.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  1644.         carla_debug("DssiPlugin::sampleRateChanged(%i) - start", newSampleRate);

  1645. 

  1646.         // TODO

  1647.         (void)newSampleRate;

  1648. 

  1649.         carla_debug("DssiPlugin::sampleRateChanged(%i) - end", newSampleRate);

  1650.     }

  1651. 

  1652.     // -------------------------------------------------------------------

  1653.     // Post-poned events

  1654. 

  1655.     void uiParameterChange(const uint32_t index, const float value)

  1656.     {

  1657.         CARLA_ASSERT(index < kData->param.count);

  1658. 

  1659.         if (index >= kData->param.count)

  1660.             return;

  1661.         if (kData->osc.data.target == nullptr)

  1662.             return;

  1663. 

  1664.         osc_send_control(&kData->osc.data, kData->param.data[index].rindex, value);

  1665.     }

  1666. 

  1667.     void uiMidiProgramChange(const uint32_t index)

  1668.     {

  1669.         CARLA_ASSERT(index < kData->midiprog.count);

  1670. 

  1671.         if (index >= kData->midiprog.count)

  1672.             return;

  1673.         if (kData->osc.data.target == nullptr)

  1674.             return;

  1675. 

  1676.         osc_send_program(&kData->osc.data, kData->midiprog.data[index].bank, kData->midiprog.data[index].program);

  1677.     }

  1678. 

  1679.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo)

  1680.     {

  1681.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1682.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1683.         CARLA_ASSERT(velo > 0 && velo < MAX_MIDI_VALUE);

  1684. 

  1685.         if (channel >= MAX_MIDI_CHANNELS)

  1686.             return;

  1687.         if (note >= MAX_MIDI_NOTE)

  1688.             return;

  1689.         if (velo >= MAX_MIDI_VALUE)

  1690.             return;

  1691.         if (kData->osc.data.target == nullptr)

  1692.             return;

  1693. 

  1694.         uint8_t midiData[4] = { 0 };

  1695.         midiData[1] = MIDI_STATUS_NOTE_ON + channel;

  1696.         midiData[2] = note;

  1697.         midiData[3] = velo;

  1698. 

  1699.         osc_send_midi(&kData->osc.data, midiData);

  1700.     }

  1701. 

  1702.     void uiNoteOff(const uint8_t channel, const uint8_t note)

  1703.     {

  1704.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1705.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1706. 

  1707.         if (channel >= MAX_MIDI_CHANNELS)

  1708.             return;

  1709.         if (note >= MAX_MIDI_NOTE)

  1710.             return;

  1711.         if (kData->osc.data.target == nullptr)

  1712.             return;

  1713. 

  1714.         uint8_t midiData[4] = { 0 };

  1715.         midiData[1] = MIDI_STATUS_NOTE_OFF + channel;

  1716.         midiData[2] = note;

  1717. 

  1718.         osc_send_midi(&kData->osc.data, midiData);

  1719.     }

  1720. 

  1721.     // -------------------------------------------------------------------

  1722.     // Cleanup

  1723. 

  1724.     void clearBuffers()

  1725.     {

  1726.         carla_debug("DssiPlugin::clearBuffers() - start");

  1727. 

  1728.         if (fAudioInBuffers != nullptr)

  1729.         {

  1730.             for (uint32_t i=0; i < kData->audioIn.count; ++i)

  1731.             {

  1732.                 if (fAudioInBuffers[i] != nullptr)

  1733.                 {

  1734.                     delete[] fAudioInBuffers[i];

  1735.                     fAudioInBuffers[i] = nullptr;

  1736.                 }

  1737.             }

  1738. 

  1739.             delete[] fAudioInBuffers;

  1740.             fAudioInBuffers = nullptr;

  1741.         }

  1742. 

  1743.         if (fAudioOutBuffers != nullptr)

  1744.         {

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

  1746.             {

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

  1748.                 {

  1749.                     delete[] fAudioOutBuffers[i];

  1750.                     fAudioOutBuffers[i] = nullptr;

  1751.                 }

  1752.             }

  1753. 

  1754.             delete[] fAudioOutBuffers;

  1755.             fAudioOutBuffers = nullptr;

  1756.         }

  1757. 

  1758.         if (fParamBuffers != nullptr)

  1759.         {

  1760.             delete[] fParamBuffers;

  1761.             fParamBuffers = nullptr;

  1762.         }

  1763. 

  1764.         CarlaPlugin::clearBuffers();

  1765. 

  1766.         carla_debug("DssiPlugin::clearBuffers() - end");

  1767.     }

  1768. 

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

  1770. 

  1771.     bool init(const char* const filename, const char* const name, const char* const label, const char* const guiFilename)

  1772.     {

  1773.         CARLA_ASSERT(kData->engine != nullptr);

  1774.         CARLA_ASSERT(kData->client == nullptr);

  1775.         CARLA_ASSERT(filename != nullptr);

  1776.         CARLA_ASSERT(label != nullptr);

  1777. 

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

  1779.         // first checks

  1780. 

  1781.         if (kData->engine == nullptr)

  1782.         {

  1783.             return false;

  1784.         }

  1785. 

  1786.         if (kData->client != nullptr)

  1787.         {

  1788.             kData->engine->setLastError("Plugin client is already registered");

  1789.             return false;

  1790.         }

  1791. 

  1792.         if (filename == nullptr)

  1793.         {

  1794.             kData->engine->setLastError("null filename");

  1795.             return false;

  1796.         }

  1797. 

  1798.         if (label == nullptr)

  1799.         {

  1800.             kData->engine->setLastError("null label");

  1801.             return false;

  1802.         }

  1803. 

  1804.         // ---------------------------------------------------------------

  1805.         // open DLL

  1806. 

  1807.         if (! kData->libOpen(filename))

  1808.         {

  1809.             kData->engine->setLastError(kData->libError(filename));

  1810.             return false;

  1811.         }

  1812. 

  1813.         // ---------------------------------------------------------------

  1814.         // get DLL main entry

  1815. 

  1816.         const DSSI_Descriptor_Function descFn = (DSSI_Descriptor_Function)kData->libSymbol("dssi_descriptor");

  1817. 

  1818.         if (descFn == nullptr)

  1819.         {

  1820.             kData->engine->setLastError("Could not find the DSSI Descriptor in the plugin library");

  1821.             return false;

  1822.         }

  1823. 

  1824.         // ---------------------------------------------------------------

  1825.         // get descriptor that matches label

  1826. 

  1827.         unsigned long i = 0;

  1828.         while ((fDssiDescriptor = descFn(i++)) != nullptr)

  1829.         {

  1830.             fDescriptor = fDssiDescriptor->LADSPA_Plugin;

  1831.             if (fDescriptor != nullptr && fDescriptor->Label != nullptr && std::strcmp(fDescriptor->Label, label) == 0)

  1832.                 break;

  1833.         }

  1834. 

  1835.         if (fDescriptor == nullptr || fDssiDescriptor == nullptr)

  1836.         {

  1837.             kData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  1838.             return false;

  1839.         }

  1840. 

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

  1842.         // get info

  1843. 

  1844.         if (name != nullptr)

  1845.             fName = kData->engine->getNewUniquePluginName(name);

  1846.         else if (fDescriptor->Name != nullptr)

  1847.             fName = kData->engine->getNewUniquePluginName(fDescriptor->Name);

  1848.         else

  1849.             fName = kData->engine->getNewUniquePluginName(fDescriptor->Label);

  1850. 

  1851.         fFilename = filename;

  1852. 

  1853.         // ---------------------------------------------------------------

  1854.         // register client

  1855. 

  1856.         kData->client = kData->engine->addClient(this);

  1857. 

  1858.         if (kData->client == nullptr || ! kData->client->isOk())

  1859.         {

  1860.             kData->engine->setLastError("Failed to register plugin client");

  1861.             return false;

  1862.         }

  1863. 

  1864.         // ---------------------------------------------------------------

  1865.         // initialize plugin

  1866. 

  1867.         fHandle = fDescriptor->instantiate(fDescriptor, (unsigned long)kData->engine->getSampleRate());

  1868. 

  1869.         if (fHandle == nullptr)

  1870.         {

  1871.             kData->engine->setLastError("Plugin failed to initialize");

  1872.             return false;

  1873.         }

  1874. 

  1875.         // ---------------------------------------------------------------

  1876.         // gui stuff

  1877. 

  1878.         if (guiFilename != nullptr)

  1879.         {

  1880.             kData->osc.thread.setOscData(guiFilename, fDescriptor->Label);

  1881.             fHints |= PLUGIN_HAS_GUI;

  1882.         }

  1883. 

  1884.         // ---------------------------------------------------------------

  1885.         // load plugin settings

  1886. 

  1887.         {

  1888. #ifdef __USE_GNU

  1889.             const bool isDssiVst = fFilename.contains("dssi-vst", true);

  1890. #else

  1891.             const bool isDssiVst = fFilename.contains("dssi-vst");

  1892. #endif

  1893. 

  1894.             // set default options

  1895.             fOptions = 0x0;

  1896. 

  1897.             fOptions |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1898. 

  1899.             if (kData->engine->getOptions().forceStereo)

  1900.                 fOptions |= PLUGIN_OPTION_FORCE_STEREO;

  1901. 

  1902.             if (isDssiVst)

  1903.             {

  1904.                 fOptions |= PLUGIN_OPTION_FIXED_BUFFER;

  1905. 

  1906.                 if (kData->engine->getOptions().useDssiVstChunks && fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->set_custom_data != nullptr)

  1907.                     fOptions |= PLUGIN_OPTION_USE_CHUNKS;

  1908.             }

  1909. 

  1910.             if (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr)

  1911.             {

  1912.                 fOptions |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1913.                 fOptions |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  1914.                 fOptions |= PLUGIN_OPTION_SEND_PITCHBEND;

  1915.                 fOptions |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1916.             }

  1917. 

  1918.             // load settings

  1919.             kData->idStr  = "DSSI/";

  1920.             kData->idStr += std::strrchr(filename, OS_SEP)+1;

  1921.             kData->idStr += "/";

  1922.             kData->idStr += label;

  1923.             fOptions = kData->loadSettings(fOptions, availableOptions());

  1924.         }

  1925. 

  1926.         return true;

  1927.     }

  1928. 

  1929. private:

  1930.     LADSPA_Handle fHandle;

  1931.     LADSPA_Handle fHandle2;

  1932.     const LADSPA_Descriptor* fDescriptor;

  1933.     const DSSI_Descriptor*   fDssiDescriptor;

  1934. 

  1935.     float**  fAudioInBuffers;

  1936.     float**  fAudioOutBuffers;

  1937.     float*   fParamBuffers;

  1938.     uint8_t* fLastChunk;

  1939.     snd_seq_event_t fMidiEvents[MAX_MIDI_EVENTS];

  1940. 

  1941.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(DssiPlugin)

  1942. };

  1943. 

  1944. CARLA_BACKEND_END_NAMESPACE

  1945. 

  1946. #else // WANT_DSSI

  1947. # warning Building without DSSI support

  1948. #endif

  1949. 

  1950. CARLA_BACKEND_START_NAMESPACE

  1951. 

  1952. CarlaPlugin* CarlaPlugin::newDSSI(const Initializer& init, const char* const guiFilename)

  1953. {

  1954.     carla_debug("CarlaPlugin::newDSSI({%p, \"%s\", \"%s\", \"%s\"}, \"%s\")", init.engine, init.filename, init.name, init.label, guiFilename);

  1955. 

  1956. #ifdef WANT_DSSI

  1957.     DssiPlugin* const plugin = new DssiPlugin(init.engine, init.id);

  1958. 

  1959.     if (! plugin->init(init.filename, init.name, init.label, guiFilename))

  1960.     {

  1961.         delete plugin;

  1962.         return nullptr;

  1963.     }

  1964. 

  1965.     plugin->reload();

  1966. 

  1967.     if (init.engine->getProccessMode() == PROCESS_MODE_CONTINUOUS_RACK && ! CarlaPluginProtectedData::canRunInRack(plugin))

  1968.     {

  1969.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo DSSI plugins, sorry!");

  1970.         delete plugin;

  1971.         return nullptr;

  1972.     }

  1973. 

  1974.     return plugin;

  1975. #else

  1976.     init.engine->setLastError("DSSI support not available");

  1977.     return nullptr;

  1978. #endif

  1979. }

  1980. 

  1981. CARLA_BACKEND_END_NAMESPACE