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Carla/source/backend/plugin/FluidSynthPlugin.cpp

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  1. /*

  2.  * Carla FluidSynth Plugin

  3.  * Copyright (C) 2011-2014 Filipe Coelho <falktx@falktx.com>

  4.  *

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

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

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

  8.  * the License, or any later version.

  9.  *

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

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

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

  13.  * GNU General Public License for more details.

  14.  *

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

  16.  */

  17. 

  18. #include "CarlaPluginInternal.hpp"

  19. #include "CarlaEngine.hpp"

  20. 

  21. #ifdef WANT_FLUIDSYNTH

  22. 

  23. #include "CarlaMathUtils.hpp"

  24. 

  25. #include <fluidsynth.h>

  26. 

  27. #include <QtCore/QStringList>

  28. 

  29. #if (FLUIDSYNTH_VERSION_MAJOR >= 1 && FLUIDSYNTH_VERSION_MINOR >= 1 && FLUIDSYNTH_VERSION_MICRO >= 4)

  30. # define FLUIDSYNTH_VERSION_NEW_API

  31. #endif

  32. 

  33. CARLA_BACKEND_START_NAMESPACE

  34. 

  35. #if 0

  36. }

  37. #endif

  38. 

  39. #define FLUID_DEFAULT_POLYPHONY 64

  40. 

  41. class FluidSynthPlugin : public CarlaPlugin

  42. {

  43. public:

  44.     FluidSynthPlugin(CarlaEngine* const engine, const unsigned int id, const bool use16Outs)

  45.         : CarlaPlugin(engine, id),

  46.           fUses16Outs(use16Outs),

  47.           fSettings(nullptr),

  48.           fSynth(nullptr),

  49.           fSynthId(0),

  50.           fAudio16Buffers(nullptr),

  51.           fLabel(nullptr)

  52.     {

  53.         carla_debug("FluidSynthPlugin::FluidSynthPlugin(%p, %i, %s)", engine, id,  bool2str(use16Outs));

  54. 

  55.         FLOAT_CLEAR(fParamBuffers, FluidSynthParametersMax);

  56.         carla_fill<int32_t>(fCurMidiProgs, MAX_MIDI_CHANNELS, 0);

  57. 

  58.         // create settings

  59.         fSettings = new_fluid_settings();

  60.         CARLA_SAFE_ASSERT_RETURN(fSettings != nullptr,);

  61. 

  62.         // define settings

  63.         fluid_settings_setint(fSettings, "synth.audio-channels", use16Outs ? 16 : 1);

  64.         fluid_settings_setint(fSettings, "synth.audio-groups", use16Outs ? 16 : 1);

  65.         fluid_settings_setnum(fSettings, "synth.sample-rate", pData->engine->getSampleRate());

  66.         //fluid_settings_setnum(fSettings, "synth.cpu-cores", 2);

  67.         fluid_settings_setint(fSettings, "synth.parallel-render", 1);

  68.         fluid_settings_setint(fSettings, "synth.threadsafe-api", 0);

  69. 

  70.         // create synth

  71.         fSynth = new_fluid_synth(fSettings);

  72.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

  73. 

  74. #ifdef FLUIDSYNTH_VERSION_NEW_API

  75.         fluid_synth_set_sample_rate(fSynth, (float)pData->engine->getSampleRate());

  76. #endif

  77. 

  78.         // set default values

  79.         fluid_synth_set_reverb_on(fSynth, 1);

  80.         fluid_synth_set_reverb(fSynth, FLUID_REVERB_DEFAULT_ROOMSIZE, FLUID_REVERB_DEFAULT_DAMP, FLUID_REVERB_DEFAULT_WIDTH, FLUID_REVERB_DEFAULT_LEVEL);

  81. 

  82.         fluid_synth_set_chorus_on(fSynth, 1);

  83.         fluid_synth_set_chorus(fSynth, FLUID_CHORUS_DEFAULT_N, FLUID_CHORUS_DEFAULT_LEVEL, FLUID_CHORUS_DEFAULT_SPEED, FLUID_CHORUS_DEFAULT_DEPTH, FLUID_CHORUS_DEFAULT_TYPE);

  84. 

  85.         fluid_synth_set_polyphony(fSynth, FLUID_DEFAULT_POLYPHONY);

  86.         fluid_synth_set_gain(fSynth, 1.0f);

  87. 

  88.         for (int i=0; i < MAX_MIDI_CHANNELS; ++i)

  89.             fluid_synth_set_interp_method(fSynth, i, FLUID_INTERP_DEFAULT);

  90.     }

  91. 

  92.     ~FluidSynthPlugin() override

  93.     {

  94.         carla_debug("FluidSynthPlugin::~FluidSynthPlugin()");

  95. 

  96.         pData->singleMutex.lock();

  97.         pData->masterMutex.lock();

  98. 

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

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

  101. 

  102.         if (pData->active)

  103.         {

  104.             deactivate();

  105.             pData->active = false;

  106.         }

  107. 

  108.         if (fSynth != nullptr)

  109.         {

  110.             delete_fluid_synth(fSynth);

  111.             fSynth = nullptr;

  112.         }

  113. 

  114.         if (fSettings != nullptr)

  115.         {

  116.             delete_fluid_settings(fSettings);

  117.             fSettings = nullptr;

  118.         }

  119. 

  120.         if (fLabel != nullptr)

  121.         {

  122.             delete[] fLabel;

  123.             fLabel = nullptr;

  124.         }

  125. 

  126.         clearBuffers();

  127.     }

  128. 

  129.     // -------------------------------------------------------------------

  130.     // Information (base)

  131. 

  132.     PluginType getType() const noexcept override

  133.     {

  134.         return PLUGIN_FILE_SF2;

  135.     }

  136. 

  137.     PluginCategory getCategory() const noexcept override

  138.     {

  139.         return PLUGIN_CATEGORY_SYNTH;

  140.     }

  141. 

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

  143.     // Information (count)

  144. 

  145.     uint32_t getParameterScalePointCount(const uint32_t parameterId) const noexcept override

  146.     {

  147.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, 0);

  148. 

  149.         switch (parameterId)

  150.         {

  151.         case FluidSynthChorusType:

  152.             return 2;

  153.         case FluidSynthInterpolation:

  154.             return 4;

  155.         default:

  156.             return 0;

  157.         }

  158.     }

  159. 

  160.     // -------------------------------------------------------------------

  161.     // Information (current data)

  162. 

  163.     // nothing

  164. 

  165.     // -------------------------------------------------------------------

  166.     // Information (per-plugin data)

  167. 

  168.     unsigned int getOptionsAvailable() const noexcept override

  169.     {

  170.         unsigned int options = 0x0;

  171. 

  172.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  173.         options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  174.         options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  175.         options |= PLUGIN_OPTION_SEND_PITCHBEND;

  176.         options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  177. 

  178.         return options;

  179.     }

  180. 

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

  182.     {

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

  184. 

  185.         return fParamBuffers[parameterId];

  186.     }

  187. 

  188.     float getParameterScalePointValue(const uint32_t parameterId, const uint32_t scalePointId) const noexcept override

  189.     {

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

  191.         CARLA_SAFE_ASSERT_RETURN(scalePointId < getParameterScalePointCount(parameterId), 0.0f);

  192. 

  193.         switch (parameterId)

  194.         {

  195.         case FluidSynthChorusType:

  196.             switch (scalePointId)

  197.             {

  198.             case 0:

  199.                 return FLUID_CHORUS_MOD_SINE;

  200.             case 1:

  201.                 return FLUID_CHORUS_MOD_TRIANGLE;

  202.             default:

  203.                 return FLUID_CHORUS_DEFAULT_TYPE;

  204.             }

  205.         case FluidSynthInterpolation:

  206.             switch (scalePointId)

  207.             {

  208.             case 0:

  209.                 return FLUID_INTERP_NONE;

  210.             case 1:

  211.                 return FLUID_INTERP_LINEAR;

  212.             case 2:

  213.                 return FLUID_INTERP_4THORDER;

  214.             case 3:

  215.                 return FLUID_INTERP_7THORDER;

  216.             default:

  217.                 return FLUID_INTERP_DEFAULT;

  218.             }

  219.         default:

  220.             return 0.0f;

  221.         }

  222.     }

  223. 

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

  225.     {

  226.         if (fLabel != nullptr)

  227.             std::strncpy(strBuf, fLabel, STR_MAX);

  228.         else

  229.             CarlaPlugin::getLabel(strBuf);

  230.     }

  231. 

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

  233.     {

  234.         std::strncpy(strBuf, "FluidSynth SF2 engine", STR_MAX);

  235.     }

  236. 

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

  238.     {

  239.         std::strncpy(strBuf, "GNU GPL v2+", STR_MAX);

  240.     }

  241. 

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

  243.     {

  244.         getLabel(strBuf);

  245.     }

  246. 

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

  248.     {

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

  250. 

  251.         switch (parameterId)

  252.         {

  253.         case FluidSynthReverbOnOff:

  254.             std::strncpy(strBuf, "Reverb On/Off", STR_MAX);

  255.             break;

  256.         case FluidSynthReverbRoomSize:

  257.             std::strncpy(strBuf, "Reverb Room Size", STR_MAX);

  258.             break;

  259.         case FluidSynthReverbDamp:

  260.             std::strncpy(strBuf, "Reverb Damp", STR_MAX);

  261.             break;

  262.         case FluidSynthReverbLevel:

  263.             std::strncpy(strBuf, "Reverb Level", STR_MAX);

  264.             break;

  265.         case FluidSynthReverbWidth:

  266.             std::strncpy(strBuf, "Reverb Width", STR_MAX);

  267.             break;

  268.         case FluidSynthChorusOnOff:

  269.             std::strncpy(strBuf, "Chorus On/Off", STR_MAX);

  270.             break;

  271.         case FluidSynthChorusNr:

  272.             std::strncpy(strBuf, "Chorus Voice Count", STR_MAX);

  273.             break;

  274.         case FluidSynthChorusLevel:

  275.             std::strncpy(strBuf, "Chorus Level", STR_MAX);

  276.             break;

  277.         case FluidSynthChorusSpeedHz:

  278.             std::strncpy(strBuf, "Chorus Speed", STR_MAX);

  279.             break;

  280.         case FluidSynthChorusDepthMs:

  281.             std::strncpy(strBuf, "Chorus Depth", STR_MAX);

  282.             break;

  283.         case FluidSynthChorusType:

  284.             std::strncpy(strBuf, "Chorus Type", STR_MAX);

  285.             break;

  286.         case FluidSynthPolyphony:

  287.             std::strncpy(strBuf, "Polyphony", STR_MAX);

  288.             break;

  289.         case FluidSynthInterpolation:

  290.             std::strncpy(strBuf, "Interpolation", STR_MAX);

  291.             break;

  292.         case FluidSynthVoiceCount:

  293.             std::strncpy(strBuf, "Voice Count", STR_MAX);

  294.             break;

  295.         default:

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

  297.             break;

  298.         }

  299.     }

  300. 

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

  302.     {

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

  304. 

  305.         switch (parameterId)

  306.         {

  307.         case FluidSynthChorusSpeedHz:

  308.             std::strncpy(strBuf, "Hz", STR_MAX);

  309.             break;

  310.         case FluidSynthChorusDepthMs:

  311.             std::strncpy(strBuf, "ms", STR_MAX);

  312.             break;

  313.         default:

  314.             CarlaPlugin::getParameterUnit(parameterId, strBuf);

  315.             break;

  316.         }

  317.     }

  318. 

  319.     void getParameterScalePointLabel(const uint32_t parameterId, const uint32_t scalePointId, char* const strBuf) const noexcept override

  320.     {

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

  322.         CARLA_SAFE_ASSERT_RETURN(scalePointId < getParameterScalePointCount(parameterId),);

  323. 

  324.         switch (parameterId)

  325.         {

  326.         case FluidSynthChorusType:

  327.             switch (scalePointId)

  328.             {

  329.             case 0:

  330.                 std::strncpy(strBuf, "Sine wave", STR_MAX);

  331.                 return;

  332.             case 1:

  333.                 std::strncpy(strBuf, "Triangle wave", STR_MAX);

  334.                 return;

  335.             }

  336.         case FluidSynthInterpolation:

  337.             switch (scalePointId)

  338.             {

  339.             case 0:

  340.                 std::strncpy(strBuf, "None", STR_MAX);

  341.                 return;

  342.             case 1:

  343.                 std::strncpy(strBuf, "Straight-line", STR_MAX);

  344.                 return;

  345.             case 2:

  346.                 std::strncpy(strBuf, "Fourth-order", STR_MAX);

  347.                 return;

  348.             case 3:

  349.                 std::strncpy(strBuf, "Seventh-order", STR_MAX);

  350.                 return;

  351.             }

  352.         }

  353. 

  354.         CarlaPlugin::getParameterScalePointLabel(parameterId, scalePointId, strBuf);

  355.     }

  356. 

  357.     // -------------------------------------------------------------------

  358.     // Set data (state)

  359. 

  360.     void prepareForSave() override

  361.     {

  362.         char strBuf[STR_MAX+1];

  363.         std::snprintf(strBuf, STR_MAX, "%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i", fCurMidiProgs[0],  fCurMidiProgs[1],  fCurMidiProgs[2],  fCurMidiProgs[3],

  364.                                                                                           fCurMidiProgs[4],  fCurMidiProgs[5],  fCurMidiProgs[6],  fCurMidiProgs[7],

  365.                                                                                           fCurMidiProgs[8],  fCurMidiProgs[9],  fCurMidiProgs[10], fCurMidiProgs[11],

  366.                                                                                           fCurMidiProgs[12], fCurMidiProgs[13], fCurMidiProgs[14], fCurMidiProgs[15]);

  367. 

  368.         CarlaPlugin::setCustomData(CUSTOM_DATA_TYPE_STRING, "midiPrograms", strBuf, false);

  369.     }

  370. 

  371.     // -------------------------------------------------------------------

  372.     // Set data (internal stuff)

  373. 

  374.     void setCtrlChannel(const int8_t channel, const bool sendOsc, const bool sendCallback) noexcept override

  375.     {

  376.         if (channel < MAX_MIDI_CHANNELS)

  377.             pData->midiprog.current = fCurMidiProgs[channel];

  378. 

  379.         CarlaPlugin::setCtrlChannel(channel, sendOsc, sendCallback);

  380.     }

  381. 

  382.     // -------------------------------------------------------------------

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

  384. 

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

  386.     {

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

  388. 

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

  390.         fParamBuffers[parameterId] = fixedValue;

  391. 

  392.         {

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

  394. 

  395.             switch (parameterId)

  396.             {

  397.             case FluidSynthReverbOnOff:

  398.                 try {

  399.                     fluid_synth_set_reverb_on(fSynth, (fixedValue > 0.5f) ? 1 : 0);

  400.                 } catch(...) {}

  401.                 break;

  402. 

  403.             case FluidSynthReverbRoomSize:

  404.             case FluidSynthReverbDamp:

  405.             case FluidSynthReverbLevel:

  406.             case FluidSynthReverbWidth:

  407.                 try {

  408.                     fluid_synth_set_reverb(fSynth, fParamBuffers[FluidSynthReverbRoomSize], fParamBuffers[FluidSynthReverbDamp], fParamBuffers[FluidSynthReverbWidth], fParamBuffers[FluidSynthReverbLevel]);

  409.                 } catch(...) {}

  410.                 break;

  411. 

  412.             case FluidSynthChorusOnOff:

  413.                 try {

  414.                     fluid_synth_set_chorus_on(fSynth, (value > 0.5f) ? 1 : 0);

  415.                 } catch(...) {}

  416.                 break;

  417. 

  418.             case FluidSynthChorusNr:

  419.             case FluidSynthChorusLevel:

  420.             case FluidSynthChorusSpeedHz:

  421.             case FluidSynthChorusDepthMs:

  422.             case FluidSynthChorusType:

  423.                 try {

  424.                     fluid_synth_set_chorus(fSynth, (int)fParamBuffers[FluidSynthChorusNr], fParamBuffers[FluidSynthChorusLevel], fParamBuffers[FluidSynthChorusSpeedHz], fParamBuffers[FluidSynthChorusDepthMs], (int)fParamBuffers[FluidSynthChorusType]);

  425.                 } catch(...) {}

  426.                 break;

  427. 

  428.             case FluidSynthPolyphony:

  429.                 try {

  430.                     fluid_synth_set_polyphony(fSynth, (int)value);

  431.                 } catch(...) {}

  432.                 break;

  433. 

  434.             case FluidSynthInterpolation:

  435.                 for (int i=0; i < MAX_MIDI_CHANNELS; ++i)

  436.                 {

  437.                     try {

  438.                         fluid_synth_set_interp_method(fSynth, i, (int)value);

  439.                     }

  440.                     catch(...) {

  441.                         break;

  442.                     }

  443.                 }

  444.                 break;

  445. 

  446.             default:

  447.                 break;

  448.             }

  449.         }

  450. 

  451.         CarlaPlugin::setParameterValue(parameterId, value, sendGui, sendOsc, sendCallback);

  452.     }

  453. 

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

  455.     {

  456.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

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

  459.         CARLA_SAFE_ASSERT_RETURN(value != nullptr && value[0] != '\0',);

  460.         carla_debug("FluidSynthPlugin::setCustomData(%s, \"%s\", \"%s\", %s)", type, key, value, bool2str(sendGui));

  461. 

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

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

  464. 

  465.         if (std::strcmp(key, "midiPrograms") != 0)

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

  467. 

  468.         if (fUses16Outs)

  469.         {

  470.             QStringList midiProgramList(QString(value).split(":", QString::SkipEmptyParts));

  471. 

  472.             if (midiProgramList.count() == MAX_MIDI_CHANNELS)

  473.             {

  474.                 int i = 0;

  475.                 foreach (const QString& midiProg, midiProgramList)

  476.                 {

  477.                     CARLA_SAFE_ASSERT_BREAK(i < MAX_MIDI_CHANNELS);

  478. 

  479.                     bool ok;

  480.                     int index = midiProg.toInt(&ok);

  481. 

  482.                     if (ok && index >= 0 && index < static_cast<int>(pData->midiprog.count))

  483.                     {

  484.                         const uint32_t bank    = pData->midiprog.data[index].bank;

  485.                         const uint32_t program = pData->midiprog.data[index].program;

  486. 

  487.                         fluid_synth_program_select(fSynth, i, fSynthId, bank, program);

  488.                         fCurMidiProgs[i] = index;

  489. 

  490.                         if (pData->ctrlChannel == static_cast<int32_t>(i))

  491.                         {

  492.                             pData->midiprog.current = index;

  493.                             pData->engine->callback(ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED, pData->id, index, 0, 0.0f, nullptr);

  494.                         }

  495.                     }

  496. 

  497.                     ++i;

  498.                 }

  499. 

  500.                 CARLA_SAFE_ASSERT(i == MAX_MIDI_CHANNELS);

  501.             }

  502.         }

  503. 

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

  505.     }

  506. 

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

  508.     {

  509.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

  511. 

  512.         if (index >= 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  513.         {

  514.             const uint32_t bank    = pData->midiprog.data[index].bank;

  515.             const uint32_t program = pData->midiprog.data[index].program;

  516. 

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

  518. 

  519.             try {

  520.                 fluid_synth_program_select(fSynth, pData->ctrlChannel, fSynthId, bank, program);

  521.             } catch(...) {}

  522. 

  523.             fCurMidiProgs[pData->ctrlChannel] = index;

  524.         }

  525. 

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

  527.     }

  528. 

  529.     // -------------------------------------------------------------------

  530.     // Set ui stuff

  531. 

  532.     // nothing

  533. 

  534.     // -------------------------------------------------------------------

  535.     // Plugin state

  536. 

  537.     void reload() override

  538.     {

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

  540.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

  541.         carla_debug("FluidSynthPlugin::reload() - start");

  542. 

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

  544. 

  545.         // Safely disable plugin for reload

  546.         const ScopedDisabler sd(this);

  547. 

  548.         if (pData->active)

  549.             deactivate();

  550. 

  551.         clearBuffers();

  552. 

  553.         uint32_t aOuts, params;

  554.         aOuts  = fUses16Outs ? 32 : 2;

  555.         params = FluidSynthParametersMax;

  556. 

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

  558.         pData->param.createNew(params, false);

  559. 

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

  561.         CarlaString portName;

  562. 

  563.         // ---------------------------------------

  564.         // Audio Outputs

  565. 

  566.         if (fUses16Outs)

  567.         {

  568.             for (uint32_t i=0; i < 32; ++i)

  569.             {

  570.                 portName.clear();

  571. 

  572.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  573.                 {

  574.                     portName  = pData->name;

  575.                     portName += ":";

  576.                 }

  577. 

  578.                 portName += "out-";

  579. 

  580.                 if ((i+2)/2 < 9)

  581.                     portName += "0";

  582. 

  583.                 portName += CarlaString((i+2)/2);

  584. 

  585.                 if (i % 2 == 0)

  586.                     portName += "L";

  587.                 else

  588.                     portName += "R";

  589. 

  590.                 portName.truncate(portNameSize);

  591. 

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

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

  594.             }

  595. 

  596.             fAudio16Buffers = new float*[aOuts];

  597. 

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

  599.                 fAudio16Buffers[i] = nullptr;

  600.         }

  601.         else

  602.         {

  603.             // out-left

  604.             portName.clear();

  605. 

  606.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  607.             {

  608.                 portName  = pData->name;

  609.                 portName += ":";

  610.             }

  611. 

  612.             portName += "out-left";

  613.             portName.truncate(portNameSize);

  614. 

  615.             pData->audioOut.ports[0].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false);

  616.             pData->audioOut.ports[0].rindex = 0;

  617. 

  618.             // out-right

  619.             portName.clear();

  620. 

  621.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  622.             {

  623.                 portName  = pData->name;

  624.                 portName += ":";

  625.             }

  626. 

  627.             portName += "out-right";

  628.             portName.truncate(portNameSize);

  629. 

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

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

  632.         }

  633. 

  634.         // ---------------------------------------

  635.         // Event Input

  636. 

  637.         {

  638.             portName.clear();

  639. 

  640.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  641.             {

  642.                 portName  = pData->name;

  643.                 portName += ":";

  644.             }

  645. 

  646.             portName += "events-in";

  647.             portName.truncate(portNameSize);

  648. 

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

  650.         }

  651. 

  652.         // ---------------------------------------

  653.         // Event Output

  654. 

  655.         {

  656.             portName.clear();

  657. 

  658.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  659.             {

  660.                 portName  = pData->name;

  661.                 portName += ":";

  662.             }

  663. 

  664.             portName += "events-out";

  665.             portName.truncate(portNameSize);

  666. 

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

  668.         }

  669. 

  670.         // ---------------------------------------

  671.         // Parameters

  672. 

  673.         {

  674.             int j;

  675. 

  676.             // ----------------------

  677.             j = FluidSynthReverbOnOff;

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

  679.             pData->param.data[j].hints  = PARAMETER_IS_ENABLED /*| PARAMETER_IS_AUTOMABLE*/ | PARAMETER_IS_BOOLEAN;

  680.             pData->param.data[j].index  = j;

  681.             pData->param.data[j].rindex = j;

  682.             pData->param.data[j].midiCC = -1;

  683.             pData->param.data[j].midiChannel = 0;

  684.             pData->param.ranges[j].min = 0.0f;

  685.             pData->param.ranges[j].max = 1.0f;

  686.             pData->param.ranges[j].def = 1.0f;

  687.             pData->param.ranges[j].step = 1.0f;

  688.             pData->param.ranges[j].stepSmall = 1.0f;

  689.             pData->param.ranges[j].stepLarge = 1.0f;

  690.             pData->param.special[j] = PARAMETER_SPECIAL_NULL;

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

  692. 

  693.             // ----------------------

  694.             j = FluidSynthReverbRoomSize;

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

  696.             pData->param.data[j].hints  = PARAMETER_IS_ENABLED /*| PARAMETER_IS_AUTOMABLE*/;

  697.             pData->param.data[j].index  = j;

  698.             pData->param.data[j].rindex = j;

  699.             pData->param.data[j].midiCC = -1;

  700.             pData->param.data[j].midiChannel = 0;

  701.             pData->param.ranges[j].min = 0.0f;

  702.             pData->param.ranges[j].max = 1.2f;

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

  704.             pData->param.ranges[j].step = 0.01f;

  705.             pData->param.ranges[j].stepSmall = 0.0001f;

  706.             pData->param.ranges[j].stepLarge = 0.1f;

  707.             pData->param.special[j] = PARAMETER_SPECIAL_NULL;

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

  709. 

  710.             // ----------------------

  711.             j = FluidSynthReverbDamp;

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

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

  714.             pData->param.data[j].index  = j;

  715.             pData->param.data[j].rindex = j;

  716.             pData->param.data[j].midiCC = -1;

  717.             pData->param.data[j].midiChannel = 0;

  718.             pData->param.ranges[j].min = 0.0f;

  719.             pData->param.ranges[j].max = 1.0f;

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

  721.             pData->param.ranges[j].step = 0.01f;

  722.             pData->param.ranges[j].stepSmall = 0.0001f;

  723.             pData->param.ranges[j].stepLarge = 0.1f;

  724.             pData->param.special[j] = PARAMETER_SPECIAL_NULL;

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

  726. 

  727.             // ----------------------

  728.             j = FluidSynthReverbLevel;

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

  730.             pData->param.data[j].hints  = PARAMETER_IS_ENABLED /*| PARAMETER_IS_AUTOMABLE*/;

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

  732.             pData->param.data[j].rindex = j;

  733.             pData->param.data[j].midiCC = MIDI_CONTROL_REVERB_SEND_LEVEL;

  734.             pData->param.data[j].midiChannel = 0;

  735.             pData->param.ranges[j].min = 0.0f;

  736.             pData->param.ranges[j].max = 1.0f;

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

  738.             pData->param.ranges[j].step = 0.01f;

  739.             pData->param.ranges[j].stepSmall = 0.0001f;

  740.             pData->param.ranges[j].stepLarge = 0.1f;

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

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

  743. 

  744.             // ----------------------

  745.             j = FluidSynthReverbWidth;

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

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

  748.             pData->param.data[j].index  = j;

  749.             pData->param.data[j].rindex = j;

  750.             pData->param.data[j].midiCC = -1;

  751.             pData->param.data[j].midiChannel = 0;

  752.             pData->param.ranges[j].min = 0.0f;

  753.             pData->param.ranges[j].max = 10.0f; // should be 100, but that sounds too much

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

  755.             pData->param.ranges[j].step = 0.01f;

  756.             pData->param.ranges[j].stepSmall = 0.0001f;

  757.             pData->param.ranges[j].stepLarge = 0.1f;

  758.             pData->param.special[j] = PARAMETER_SPECIAL_NULL;

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

  760. 

  761.             // ----------------------

  762.             j = FluidSynthChorusOnOff;

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

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

  765.             pData->param.data[j].index  = j;

  766.             pData->param.data[j].rindex = j;

  767.             pData->param.data[j].midiCC = -1;

  768.             pData->param.data[j].midiChannel = 0;

  769.             pData->param.ranges[j].min = 0.0f;

  770.             pData->param.ranges[j].max = 1.0f;

  771.             pData->param.ranges[j].def = 1.0f;

  772.             pData->param.ranges[j].step = 1.0f;

  773.             pData->param.ranges[j].stepSmall = 1.0f;

  774.             pData->param.ranges[j].stepLarge = 1.0f;

  775.             pData->param.special[j] = PARAMETER_SPECIAL_NULL;

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

  777. 

  778.             // ----------------------

  779.             j = FluidSynthChorusNr;

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

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

  782.             pData->param.data[j].index  = j;

  783.             pData->param.data[j].rindex = j;

  784.             pData->param.data[j].midiCC = -1;

  785.             pData->param.data[j].midiChannel = 0;

  786.             pData->param.ranges[j].min = 0.0f;

  787.             pData->param.ranges[j].max = 99.0f;

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

  789.             pData->param.ranges[j].step = 1.0f;

  790.             pData->param.ranges[j].stepSmall = 1.0f;

  791.             pData->param.ranges[j].stepLarge = 10.0f;

  792.             pData->param.special[j] = PARAMETER_SPECIAL_NULL;

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

  794. 

  795.             // ----------------------

  796.             j = FluidSynthChorusLevel;

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

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

  799.             pData->param.data[j].index  = j;

  800.             pData->param.data[j].rindex = j;

  801.             pData->param.data[j].midiCC = 0; //MIDI_CONTROL_CHORUS_SEND_LEVEL;

  802.             pData->param.data[j].midiChannel = 0;

  803.             pData->param.ranges[j].min = 0.0f;

  804.             pData->param.ranges[j].max = 10.0f;

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

  806.             pData->param.ranges[j].step = 0.01f;

  807.             pData->param.ranges[j].stepSmall = 0.0001f;

  808.             pData->param.ranges[j].stepLarge = 0.1f;

  809.             pData->param.special[j] = PARAMETER_SPECIAL_NULL;

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

  811. 

  812.             // ----------------------

  813.             j = FluidSynthChorusSpeedHz;

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

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

  816.             pData->param.data[j].index  = j;

  817.             pData->param.data[j].rindex = j;

  818.             pData->param.data[j].midiCC = -1;

  819.             pData->param.data[j].midiChannel = 0;

  820.             pData->param.ranges[j].min = 0.29f;

  821.             pData->param.ranges[j].max = 5.0f;

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

  823.             pData->param.ranges[j].step = 0.01f;

  824.             pData->param.ranges[j].stepSmall = 0.0001f;

  825.             pData->param.ranges[j].stepLarge = 0.1f;

  826.             pData->param.special[j] = PARAMETER_SPECIAL_NULL;

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

  828. 

  829.             // ----------------------

  830.             j = FluidSynthChorusDepthMs;

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

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

  833.             pData->param.data[j].index  = j;

  834.             pData->param.data[j].rindex = j;

  835.             pData->param.data[j].midiCC = -1;

  836.             pData->param.data[j].midiChannel = 0;

  837.             pData->param.ranges[j].min = 0.0f;

  838.             pData->param.ranges[j].max = float(2048.0 * 1000.0 / pData->engine->getSampleRate()); // FIXME?

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

  840.             pData->param.ranges[j].step = 0.01f;

  841.             pData->param.ranges[j].stepSmall = 0.0001f;

  842.             pData->param.ranges[j].stepLarge = 0.1f;

  843.             pData->param.special[j] = PARAMETER_SPECIAL_NULL;

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

  845. 

  846.             // ----------------------

  847.             j = FluidSynthChorusType;

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

  849.             pData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_INTEGER | PARAMETER_USES_SCALEPOINTS;

  850.             pData->param.data[j].index  = j;

  851.             pData->param.data[j].rindex = j;

  852.             pData->param.data[j].midiCC = -1;

  853.             pData->param.data[j].midiChannel = 0;

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

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

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

  857.             pData->param.ranges[j].step = 1.0f;

  858.             pData->param.ranges[j].stepSmall = 1.0f;

  859.             pData->param.ranges[j].stepLarge = 1.0f;

  860.             pData->param.special[j] = PARAMETER_SPECIAL_NULL;

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

  862. 

  863.             // ----------------------

  864.             j = FluidSynthPolyphony;

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

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

  867.             pData->param.data[j].index  = j;

  868.             pData->param.data[j].rindex = j;

  869.             pData->param.data[j].midiCC = -1;

  870.             pData->param.data[j].midiChannel = 0;

  871.             pData->param.ranges[j].min = 1.0f;

  872.             pData->param.ranges[j].max = 512.0f; // max theoric is 65535

  873.             pData->param.ranges[j].def = (float)fluid_synth_get_polyphony(fSynth);

  874.             pData->param.ranges[j].step = 1.0f;

  875.             pData->param.ranges[j].stepSmall = 1.0f;

  876.             pData->param.ranges[j].stepLarge = 10.0f;

  877.             pData->param.special[j] = PARAMETER_SPECIAL_NULL;

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

  879. 

  880.             // ----------------------

  881.             j = FluidSynthInterpolation;

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

  883.             pData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_INTEGER | PARAMETER_USES_SCALEPOINTS;

  884.             pData->param.data[j].index  = j;

  885.             pData->param.data[j].rindex = j;

  886.             pData->param.data[j].midiCC = -1;

  887.             pData->param.data[j].midiChannel = 0;

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

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

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

  891.             pData->param.ranges[j].step = 1.0f;

  892.             pData->param.ranges[j].stepSmall = 1.0f;

  893.             pData->param.ranges[j].stepLarge = 1.0f;

  894.             pData->param.special[j] = PARAMETER_SPECIAL_NULL;

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

  896. 

  897.             // ----------------------

  898.             j = FluidSynthVoiceCount;

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

  900.             pData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_AUTOMABLE | PARAMETER_IS_INTEGER;

  901.             pData->param.data[j].index  = j;

  902.             pData->param.data[j].rindex = j;

  903.             pData->param.data[j].midiCC = -1;

  904.             pData->param.data[j].midiChannel = 0;

  905.             pData->param.ranges[j].min = 0.0f;

  906.             pData->param.ranges[j].max = 65535.0f;

  907.             pData->param.ranges[j].def = 0.0f;

  908.             pData->param.ranges[j].step = 1.0f;

  909.             pData->param.ranges[j].stepSmall = 1.0f;

  910.             pData->param.ranges[j].stepLarge = 1.0f;

  911.             pData->param.special[j] = PARAMETER_SPECIAL_NULL;

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

  913.         }

  914. 

  915.         // ---------------------------------------

  916. 

  917.         // plugin hints

  918.         pData->hints  = 0x0;

  919.         pData->hints |= PLUGIN_IS_SYNTH;

  920.         pData->hints |= PLUGIN_CAN_VOLUME;

  921. 

  922.         if (! fUses16Outs)

  923.             pData->hints |= PLUGIN_CAN_BALANCE;

  924. 

  925.         // extra plugin hints

  926.         pData->extraHints  = 0x0;

  927.         pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  928. 

  929.         if (fUses16Outs)

  930.             pData->extraHints |= PLUGIN_EXTRA_HINT_USES_MULTI_PROGS;

  931.         else

  932.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  933. 

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

  935.         reloadPrograms(true);

  936. 

  937.         if (pData->active)

  938.             activate();

  939. 

  940.         carla_debug("FluidSynthPlugin::reload() - end");

  941.     }

  942. 

  943.     void reloadPrograms(const bool doInit) override

  944.     {

  945.         carla_debug("FluidSynthPlugin::reloadPrograms(%s)", bool2str(doInit));

  946. 

  947.         // save drum info in case we have one program for it

  948.         bool hasDrums = false;

  949.         int32_t drumIndex;

  950.         uint32_t drumProg;

  951. 

  952.         // Delete old programs

  953.         pData->midiprog.clear();

  954. 

  955.         // Query new programs

  956.         uint32_t count = 0;

  957. 

  958.         if (fluid_sfont_t* const f_sfont = fluid_synth_get_sfont_by_id(fSynth, fSynthId))

  959.         {

  960.             fluid_preset_t f_preset;

  961. 

  962.             // initial check to know how many midi-programs we have

  963.             f_sfont->iteration_start(f_sfont);

  964.             while (f_sfont->iteration_next(f_sfont, &f_preset))

  965.                 ++count;

  966. 

  967.             // sound kits must always have at least 1 midi-program

  968.             CARLA_SAFE_ASSERT_RETURN(count > 0,);

  969. 

  970.             pData->midiprog.createNew(count);

  971. 

  972.             // Update data

  973.             int tmp;

  974.             uint32_t i = 0;

  975.             f_sfont->iteration_start(f_sfont);

  976. 

  977.             while (f_sfont->iteration_next(f_sfont, &f_preset))

  978.             {

  979.                 CARLA_SAFE_ASSERT_BREAK(i < count);

  980. 

  981.                 tmp = f_preset.get_banknum(&f_preset);

  982.                 pData->midiprog.data[i].bank = (tmp >= 0) ? static_cast<uint32_t>(tmp) : 0;

  983. 

  984.                 tmp = f_preset.get_num(&f_preset);

  985.                 pData->midiprog.data[i].program = (tmp >= 0) ? static_cast<uint32_t>(tmp) : 0;

  986. 

  987.                 pData->midiprog.data[i].name = carla_strdup(f_preset.get_name(&f_preset));

  988. 

  989.                 if (pData->midiprog.data[i].bank == 128 && ! hasDrums)

  990.                 {

  991.                     hasDrums  = true;

  992.                     drumIndex = static_cast<int32_t>(i);

  993.                     drumProg  = pData->midiprog.data[i].program;

  994.                 }

  995. 

  996.                 ++i;

  997.             }

  998.         }

  999.         else

  1000.         {

  1001.             // failing means 0 midi-programs, it shouldn't happen!

  1002.             carla_safe_assert("fluid_sfont_t* const f_sfont = fluid_synth_get_sfont_by_id(fSynth, fSynthId)", __FILE__, __LINE__);

  1003.             return;

  1004.         }

  1005. 

  1006. #ifndef BUILD_BRIDGE

  1007.         // Update OSC Names

  1008.         if (pData->engine->isOscControlRegistered())

  1009.         {

  1010.             pData->engine->oscSend_control_set_midi_program_count(pData->id, count);

  1011. 

  1012.             for (uint32_t i=0; i < count; ++i)

  1013.                 pData->engine->oscSend_control_set_midi_program_data(pData->id, i, pData->midiprog.data[i].bank, pData->midiprog.data[i].program, pData->midiprog.data[i].name);

  1014.         }

  1015. #endif

  1016. 

  1017.         if (doInit)

  1018.         {

  1019.             fluid_synth_program_reset(fSynth);

  1020. 

  1021.             // select first program, or 128 for ch10

  1022.             for (int i=0; i < MAX_MIDI_CHANNELS && i != 9; ++i)

  1023.             {

  1024. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1025.                 fluid_synth_set_channel_type(fSynth, i, CHANNEL_TYPE_MELODIC);

  1026. #endif

  1027.                 fluid_synth_program_select(fSynth, i, fSynthId, pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1028. 

  1029.                 fCurMidiProgs[i] = 0;

  1030.             }

  1031. 

  1032.             if (hasDrums)

  1033.             {

  1034. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1035.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_DRUM);

  1036. #endif

  1037.                 fluid_synth_program_select(fSynth, 9, fSynthId, 128, drumProg);

  1038. 

  1039.                 fCurMidiProgs[9] = drumIndex;

  1040.             }

  1041.             else

  1042.             {

  1043. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1044.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_MELODIC);

  1045. #endif

  1046.                 fluid_synth_program_select(fSynth, 9, fSynthId, pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1047. 

  1048.                 fCurMidiProgs[9] = 0;

  1049.             }

  1050. 

  1051.             pData->midiprog.current = 0;

  1052.         }

  1053.         else

  1054.         {

  1055.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1056.         }

  1057.     }

  1058. 

  1059.     // -------------------------------------------------------------------

  1060.     // Plugin processing

  1061. 

  1062.     void process(float** const, float** const outBuffer, const uint32_t frames) override

  1063.     {

  1064.         // --------------------------------------------------------------------------------------------------------

  1065.         // Check if active

  1066. 

  1067.         if (! pData->active)

  1068.         {

  1069.             // disable any output sound

  1070.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1071.                 FLOAT_CLEAR(outBuffer[i], frames);

  1072.             return;

  1073.         }

  1074. 

  1075.         // --------------------------------------------------------------------------------------------------------

  1076.         // Check if needs reset

  1077. 

  1078.         if (pData->needsReset)

  1079.         {

  1080.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1081.             {

  1082.                 for (int i=0; i < MAX_MIDI_CHANNELS; ++i)

  1083.                 {

  1084. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1085.                     fluid_synth_all_notes_off(fSynth, i);

  1086.                     fluid_synth_all_sounds_off(fSynth, i);

  1087. #else

  1088.                     fluid_synth_cc(fSynth, i, MIDI_CONTROL_ALL_SOUND_OFF, 0);

  1089.                     fluid_synth_cc(fSynth, i, MIDI_CONTROL_ALL_NOTES_OFF, 0);

  1090. #endif

  1091.                 }

  1092.             }

  1093.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1094.             {

  1095.                 for (int i=0; i < MAX_MIDI_NOTE; ++i)

  1096.                     fluid_synth_noteoff(fSynth, pData->ctrlChannel, i);

  1097.             }

  1098. 

  1099.             pData->needsReset = false;

  1100.         }

  1101. 

  1102.         // --------------------------------------------------------------------------------------------------------

  1103.         // Event Input and Processing

  1104. 

  1105.         {

  1106.             // ----------------------------------------------------------------------------------------------------

  1107.             // MIDI Input (External)

  1108. 

  1109.             if (pData->extNotes.mutex.tryLock())

  1110.             {

  1111.                 while (! pData->extNotes.data.isEmpty())

  1112.                 {

  1113.                     const ExternalMidiNote& note(pData->extNotes.data.getFirst(true));

  1114. 

  1115.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1116. 

  1117.                     if (note.velo > 0)

  1118.                         fluid_synth_noteon(fSynth, note.channel, note.note, note.velo);

  1119.                     else

  1120.                         fluid_synth_noteoff(fSynth,note.channel, note.note);

  1121.                 }

  1122. 

  1123.                 pData->extNotes.mutex.unlock();

  1124. 

  1125.             } // End of MIDI Input (External)

  1126. 

  1127.             // ----------------------------------------------------------------------------------------------------

  1128.             // Event Input (System)

  1129. 

  1130.             bool allNotesOffSent = false;

  1131. 

  1132.             uint32_t time, nEvents = pData->event.portIn->getEventCount();

  1133.             uint32_t timeOffset = 0;

  1134. 

  1135.             uint32_t nextBankIds[MAX_MIDI_CHANNELS] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 };

  1136. 

  1137.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1138.                 nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1139. 

  1140.             for (uint32_t i=0; i < nEvents; ++i)

  1141.             {

  1142.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1143. 

  1144.                 time = event.time;

  1145. 

  1146.                 CARLA_SAFE_ASSERT_CONTINUE(time < frames);

  1147.                 CARLA_SAFE_ASSERT_BREAK(time >= timeOffset);

  1148. 

  1149.                 if (time > timeOffset)

  1150.                 {

  1151.                     if (processSingle(outBuffer, time - timeOffset, timeOffset))

  1152.                     {

  1153.                         timeOffset = time;

  1154. 

  1155.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1156.                             nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1157.                     }

  1158.                 }

  1159. 

  1160.                 // Control change

  1161.                 switch (event.type)

  1162.                 {

  1163.                 case kEngineEventTypeNull:

  1164.                     break;

  1165. 

  1166.                 case kEngineEventTypeControl:

  1167.                 {

  1168.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1169. 

  1170.                     switch (ctrlEvent.type)

  1171.                     {

  1172.                     case kEngineControlEventTypeNull:

  1173.                         break;

  1174. 

  1175.                     case kEngineControlEventTypeParameter:

  1176.                     {

  1177. #ifndef BUILD_BRIDGE

  1178.                         // Control backend stuff

  1179.                         if (event.channel == pData->ctrlChannel)

  1180.                         {

  1181.                             float value;

  1182. 

  1183.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1184.                             {

  1185.                                 value = ctrlEvent.value;

  1186.                                 setDryWet(value, false, false);

  1187.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1188.                             }

  1189. 

  1190.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1191.                             {

  1192.                                 value = ctrlEvent.value*127.0f/100.0f;

  1193.                                 setVolume(value, false, false);

  1194.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1195.                             }

  1196. 

  1197.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1198.                             {

  1199.                                 float left, right;

  1200.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1201. 

  1202.                                 if (value < 0.0f)

  1203.                                 {

  1204.                                     left  = -1.0f;

  1205.                                     right = (value*2.0f)+1.0f;

  1206.                                 }

  1207.                                 else if (value > 0.0f)

  1208.                                 {

  1209.                                     left  = (value*2.0f)-1.0f;

  1210.                                     right = 1.0f;

  1211.                                 }

  1212.                                 else

  1213.                                 {

  1214.                                     left  = -1.0f;

  1215.                                     right = 1.0f;

  1216.                                 }

  1217. 

  1218.                                 setBalanceLeft(left, false, false);

  1219.                                 setBalanceRight(right, false, false);

  1220.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1221.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1222.                             }

  1223.                         }

  1224. #endif

  1225. 

  1226.                         // Control plugin parameters

  1227.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1228.                         {

  1229.                             if (pData->param.data[k].midiChannel != event.channel)

  1230.                                 continue;

  1231.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1232.                                 continue;

  1233.                             if (pData->param.data[k].hints != PARAMETER_INPUT)

  1234.                                 continue;

  1235.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1236.                                 continue;

  1237. 

  1238.                             float value;

  1239. 

  1240.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1241.                             {

  1242.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1243.                             }

  1244.                             else

  1245.                             {

  1246.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1247. 

  1248.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1249.                                     value = std::rint(value);

  1250.                             }

  1251. 

  1252.                             setParameterValue(k, value, false, false, false);

  1253.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1254.                         }

  1255. 

  1256.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param <= 0x5F)

  1257.                         {

  1258.                             fluid_synth_cc(fSynth, event.channel, ctrlEvent.param, int(ctrlEvent.value*127.0f));

  1259.                         }

  1260. 

  1261.                         break;

  1262.                     }

  1263. 

  1264.                     case kEngineControlEventTypeMidiBank:

  1265.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1266.                             nextBankIds[event.channel] = ctrlEvent.param;

  1267.                         break;

  1268. 

  1269.                     case kEngineControlEventTypeMidiProgram:

  1270.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1271.                         {

  1272.                             const uint32_t bankId(nextBankIds[event.channel]);

  1273.                             const uint32_t progId(ctrlEvent.param);

  1274. 

  1275.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1276.                             {

  1277.                                 if (pData->midiprog.data[k].bank == bankId && pData->midiprog.data[k].program == progId)

  1278.                                 {

  1279.                                     fluid_synth_program_select(fSynth, event.channel, fSynthId, bankId, progId);

  1280.                                     fCurMidiProgs[event.channel] = static_cast<int32_t>(k);

  1281. 

  1282.                                     if (event.channel == pData->ctrlChannel)

  1283.                                         pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, static_cast<int32_t>(k), 0, 0.0f);

  1284. 

  1285.                                     break;

  1286.                                 }

  1287.                             }

  1288.                         }

  1289.                         break;

  1290. 

  1291.                     case kEngineControlEventTypeAllSoundOff:

  1292.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1293.                         {

  1294. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1295.                             fluid_synth_all_sounds_off(fSynth, event.channel);

  1296. #else

  1297.                             fluid_synth_cc(fSynth, event.channel, MIDI_CONTROL_ALL_SOUND_OFF, 0);

  1298. #endif

  1299.                         }

  1300.                         break;

  1301. 

  1302.                     case kEngineControlEventTypeAllNotesOff:

  1303.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1304.                         {

  1305.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1306.                             {

  1307.                                 allNotesOffSent = true;

  1308.                                 sendMidiAllNotesOffToCallback();

  1309.                             }

  1310. 

  1311. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1312.                             fluid_synth_all_notes_off(fSynth, event.channel);

  1313. #else

  1314.                             fluid_synth_cc(fSynth, event.channel, MIDI_CONTROL_ALL_NOTES_OFF, 0);

  1315. #endif

  1316.                         }

  1317.                         break;

  1318.                     }

  1319. 

  1320.                     break;

  1321.                 }

  1322. 

  1323.                 case kEngineEventTypeMidi:

  1324.                 {

  1325.                     const EngineMidiEvent& midiEvent(event.midi);

  1326. 

  1327.                     uint8_t status  = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1328.                     uint8_t channel = event.channel;

  1329. 

  1330.                     // Fix bad note-off

  1331.                     if (MIDI_IS_STATUS_NOTE_ON(status) && midiEvent.data[2] == 0)

  1332.                         status = MIDI_STATUS_NOTE_OFF;

  1333. 

  1334.                     if (MIDI_IS_STATUS_NOTE_OFF(status))

  1335.                     {

  1336.                         const uint8_t note = midiEvent.data[1];

  1337. 

  1338.                         fluid_synth_noteoff(fSynth, channel, note);

  1339. 

  1340.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0f);

  1341.                     }

  1342.                     else if (MIDI_IS_STATUS_NOTE_ON(status))

  1343.                     {

  1344.                         const uint8_t note = midiEvent.data[1];

  1345.                         const uint8_t velo = midiEvent.data[2];

  1346. 

  1347.                         fluid_synth_noteon(fSynth, channel, note, velo);

  1348. 

  1349.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1350.                     }

  1351.                     else if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) != 0)

  1352.                     {

  1353.                         //const uint8_t note     = midiEvent.data[1];

  1354.                         //const uint8_t pressure = midiEvent.data[2];

  1355. 

  1356.                         // TODO, not in fluidsynth API

  1357.                     }

  1358.                     else if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0)

  1359.                     {

  1360.                         const uint8_t control = midiEvent.data[1];

  1361.                         const uint8_t value   = midiEvent.data[2];

  1362. 

  1363.                         fluid_synth_cc(fSynth, channel, control, value);

  1364.                     }

  1365.                     else if (MIDI_IS_STATUS_CHANNEL_PRESSURE(status) && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) != 0)

  1366.                     {

  1367.                         const uint8_t pressure = midiEvent.data[1];

  1368. 

  1369.                         fluid_synth_channel_pressure(fSynth, channel, pressure);;

  1370.                     }

  1371.                     else if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) != 0)

  1372.                     {

  1373.                         const uint8_t lsb   = midiEvent.data[1];

  1374.                         const uint8_t msb   = midiEvent.data[2];

  1375.                         const int     value = ((msb << 7) | lsb) - 8192;

  1376. 

  1377.                         fluid_synth_pitch_bend(fSynth, channel, value);

  1378.                     }

  1379. 

  1380.                     break;

  1381.                 }

  1382.                 }

  1383.             }

  1384. 

  1385.             pData->postRtEvents.trySplice();

  1386. 

  1387.             if (frames > timeOffset)

  1388.                 processSingle(outBuffer, frames - timeOffset, timeOffset);

  1389. 

  1390.         } // End of Event Input and Processing

  1391. 

  1392.         CARLA_PROCESS_CONTINUE_CHECK;

  1393. 

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

  1395.         // Control Output

  1396. 

  1397.         {

  1398.             uint32_t k = FluidSynthVoiceCount;

  1399.             fParamBuffers[k] = float(fluid_synth_get_active_voice_count(fSynth));

  1400.             pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1401. 

  1402.             if (pData->param.data[k].midiCC > 0)

  1403.             {

  1404.                 float value(pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]));

  1405.                 pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), value);

  1406.             }

  1407. 

  1408.         } // End of Control Output

  1409.     }

  1410. 

  1411.     bool processSingle(float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1412.     {

  1413.         CARLA_SAFE_ASSERT_RETURN(outBuffer != nullptr, false);

  1414.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1415. 

  1416.         // --------------------------------------------------------------------------------------------------------

  1417.         // Try lock, silence otherwise

  1418. 

  1419.         if (pData->engine->isOffline())

  1420.         {

  1421.             pData->singleMutex.lock();

  1422.         }

  1423.         else if (! pData->singleMutex.tryLock())

  1424.         {

  1425.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1426.             {

  1427.                 for (uint32_t k=0; k < frames; ++k)

  1428.                     outBuffer[i][k+timeOffset] = 0.0f;

  1429.             }

  1430. 

  1431.             return false;

  1432.         }

  1433. 

  1434.         // --------------------------------------------------------------------------------------------------------

  1435.         // Fill plugin buffers and Run plugin

  1436. 

  1437.         if (fUses16Outs)

  1438.         {

  1439.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1440.                 FLOAT_CLEAR(fAudio16Buffers[i], frames);

  1441. 

  1442.             // FIXME use '32' or '16' instead of outs

  1443.             fluid_synth_process(fSynth, static_cast<int>(frames), 0, nullptr, static_cast<int>(pData->audioOut.count), fAudio16Buffers);

  1444.         }

  1445.         else

  1446.             fluid_synth_write_float(fSynth, static_cast<int>(frames), outBuffer[0] + timeOffset, 0, 1, outBuffer[1] + timeOffset, 0, 1);

  1447. 

  1448. #ifndef BUILD_BRIDGE

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

  1450.         // Post-processing (volume and balance)

  1451. 

  1452.         {

  1453.             // note - balance not possible with fUses16Outs, so we can safely skip fAudioOutBuffers

  1454.             const bool doVolume  = (pData->hints & PLUGIN_CAN_VOLUME) > 0 && pData->postProc.volume != 1.0f;

  1455.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) > 0 && (pData->postProc.balanceLeft != -1.0f || pData->postProc.balanceRight != 1.0f);

  1456. 

  1457.             float oldBufLeft[doBalance ? frames : 1];

  1458. 

  1459.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1460.             {

  1461.                 // Balance

  1462.                 if (doBalance)

  1463.                 {

  1464.                     if (i % 2 == 0)

  1465.                         FLOAT_COPY(oldBufLeft, outBuffer[i]+timeOffset, frames);

  1466. 

  1467.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1468.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1469. 

  1470.                     for (uint32_t k=0; k < frames; ++k)

  1471.                     {

  1472.                         if (i % 2 == 0)

  1473.                         {

  1474.                             // left

  1475.                             outBuffer[i][k+timeOffset]  = oldBufLeft[k]                * (1.0f - balRangeL);

  1476.                             outBuffer[i][k+timeOffset] += outBuffer[i+1][k+timeOffset] * (1.0f - balRangeR);

  1477.                         }

  1478.                         else

  1479.                         {

  1480.                             // right

  1481.                             outBuffer[i][k+timeOffset]  = outBuffer[i][k+timeOffset] * balRangeR;

  1482.                             outBuffer[i][k+timeOffset] += oldBufLeft[k]              * balRangeL;

  1483.                         }

  1484.                     }

  1485.                 }

  1486. 

  1487.                 // Volume

  1488.                 if (fUses16Outs)

  1489.                 {

  1490.                     for (uint32_t k=0; k < frames; ++k)

  1491.                         outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k] * pData->postProc.volume;

  1492.                 }

  1493.                 else if (doVolume)

  1494.                 {

  1495.                     for (uint32_t k=0; k < frames; ++k)

  1496.                         outBuffer[i][k+timeOffset] *= pData->postProc.volume;

  1497.                 }

  1498.             }

  1499. 

  1500.         } // End of Post-processing

  1501. #else

  1502.         if (fUses16Outs)

  1503.         {

  1504.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1505.             {

  1506.                 for (uint32_t k=0; k < frames; ++k)

  1507.                     outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k];

  1508.             }

  1509.         }

  1510. #endif

  1511. 

  1512.         // --------------------------------------------------------------------------------------------------------

  1513. 

  1514.         pData->singleMutex.unlock();

  1515.         return true;

  1516.     }

  1517. 

  1518.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1519.     {

  1520.         if (! fUses16Outs)

  1521.             return;

  1522. 

  1523.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1524.         {

  1525.             if (fAudio16Buffers[i] != nullptr)

  1526.                 delete[] fAudio16Buffers[i];

  1527.             fAudio16Buffers[i] = new float[newBufferSize];

  1528.         }

  1529.     }

  1530. 

  1531.     void sampleRateChanged(const double newSampleRate) override

  1532.     {

  1533.         CARLA_SAFE_ASSERT_RETURN(fSettings != nullptr,);

  1534. 

  1535.         fluid_settings_setnum(fSettings, "synth.sample-rate", newSampleRate);

  1536. 

  1537. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1538.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

  1539. 

  1540.         fluid_synth_set_sample_rate(fSynth, float(newSampleRate));

  1541. #endif

  1542.     }

  1543. 

  1544.     // -------------------------------------------------------------------

  1545.     // Plugin buffers

  1546. 

  1547.     void clearBuffers() override

  1548.     {

  1549.         carla_debug("FluidSynthPlugin::clearBuffers() - start");

  1550. 

  1551.         if (fAudio16Buffers != nullptr)

  1552.         {

  1553.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1554.             {

  1555.                 if (fAudio16Buffers[i] != nullptr)

  1556.                 {

  1557.                     delete[] fAudio16Buffers[i];

  1558.                     fAudio16Buffers[i] = nullptr;

  1559.                 }

  1560.             }

  1561. 

  1562.             delete[] fAudio16Buffers;

  1563.             fAudio16Buffers = nullptr;

  1564.         }

  1565. 

  1566.         CarlaPlugin::clearBuffers();

  1567. 

  1568.         carla_debug("FluidSynthPlugin::clearBuffers() - end");

  1569.     }

  1570. 

  1571.     // -------------------------------------------------------------------

  1572. 

  1573.     const void* getExtraStuff() const noexcept override

  1574.     {

  1575.         static const char xtrue[]  = "true";

  1576.         static const char xfalse[] = "false";

  1577.         return fUses16Outs ? xtrue : xfalse;

  1578.     }

  1579. 

  1580.     bool init(const char* const filename, const char* const name, const char* const label)

  1581.     {

  1582.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  1583. 

  1584.         // ---------------------------------------------------------------

  1585.         // first checks

  1586. 

  1587.         if (pData->client != nullptr)

  1588.         {

  1589.             pData->engine->setLastError("Plugin client is already registered");

  1590.             return false;

  1591.         }

  1592. 

  1593.         if (fSynth == nullptr)

  1594.         {

  1595.             pData->engine->setLastError("null synth");

  1596.             return false;

  1597.         }

  1598. 

  1599.         if (filename == nullptr || filename[0] == '\0')

  1600.         {

  1601.             pData->engine->setLastError("null filename");

  1602.             return false;

  1603.         }

  1604. 

  1605.         if (label == nullptr || label[0] == '\0')

  1606.         {

  1607.             pData->engine->setLastError("null label");

  1608.             return false;

  1609.         }

  1610. 

  1611.         // ---------------------------------------------------------------

  1612.         // open soundfont

  1613. 

  1614.         const int synthId(fluid_synth_sfload(fSynth, filename, 0));

  1615. 

  1616.         if (synthId < 0)

  1617.         {

  1618.             pData->engine->setLastError("Failed to load SoundFont file");

  1619.             return false;

  1620.         }

  1621. 

  1622.         fSynthId = static_cast<uint>(synthId);

  1623. 

  1624.         // ---------------------------------------------------------------

  1625.         // get info

  1626. 

  1627.         CarlaString label2(label);

  1628. 

  1629.         if (fUses16Outs && ! label2.endsWith(" (16 outs)"))

  1630.             label2 += " (16 outs)";

  1631. 

  1632.         fLabel          = label2.dup();

  1633.         pData->filename = carla_strdup(filename);

  1634. 

  1635.         if (name != nullptr && name[0] != '\0')

  1636.             pData->name = pData->engine->getUniquePluginName(name);

  1637.         else

  1638.             pData->name = pData->engine->getUniquePluginName(label);

  1639. 

  1640.         // ---------------------------------------------------------------

  1641.         // register client

  1642. 

  1643.         pData->client = pData->engine->addClient(this);

  1644. 

  1645.         if (pData->client == nullptr || ! pData->client->isOk())

  1646.         {

  1647.             pData->engine->setLastError("Failed to register plugin client");

  1648.             return false;

  1649.         }

  1650. 

  1651.         // ---------------------------------------------------------------

  1652.         // load plugin settings

  1653. 

  1654.         {

  1655.             // set default options

  1656.             pData->options = 0x0;

  1657. 

  1658.             pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1659.             pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1660.             pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  1661.             pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1662. 

  1663.             // set identifier string

  1664.             CarlaString identifier("SF2/");

  1665. 

  1666.             if (const char* const shortname = std::strrchr(filename, OS_SEP))

  1667.                 identifier += shortname+1;

  1668.             else

  1669.                 identifier += label;

  1670. 

  1671.             pData->identifier = identifier.dup();

  1672. 

  1673.             // load settings

  1674.             pData->options = pData->loadSettings(pData->options, getOptionsAvailable());

  1675.         }

  1676. 

  1677.         return true;

  1678.     }

  1679. 

  1680. private:

  1681.     enum FluidSynthInputParameters {

  1682.         FluidSynthReverbOnOff    = 0,

  1683.         FluidSynthReverbRoomSize = 1,

  1684.         FluidSynthReverbDamp     = 2,

  1685.         FluidSynthReverbLevel    = 3,

  1686.         FluidSynthReverbWidth    = 4,

  1687.         FluidSynthChorusOnOff    = 5,

  1688.         FluidSynthChorusNr       = 6,

  1689.         FluidSynthChorusLevel    = 7,

  1690.         FluidSynthChorusSpeedHz  = 8,

  1691.         FluidSynthChorusDepthMs  = 9,

  1692.         FluidSynthChorusType     = 10,

  1693.         FluidSynthPolyphony      = 11,

  1694.         FluidSynthInterpolation  = 12,

  1695.         FluidSynthVoiceCount     = 13,

  1696.         FluidSynthParametersMax  = 14

  1697.     };

  1698. 

  1699.     const bool fUses16Outs;

  1700. 

  1701.     fluid_settings_t* fSettings;

  1702.     fluid_synth_t*    fSynth;

  1703.     uint              fSynthId;

  1704. 

  1705.     float** fAudio16Buffers;

  1706.     float   fParamBuffers[FluidSynthParametersMax];

  1707. 

  1708.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  1709. 

  1710.     const char* fLabel;

  1711. 

  1712.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(FluidSynthPlugin)

  1713. };

  1714. 

  1715. CARLA_BACKEND_END_NAMESPACE

  1716. 

  1717. #endif // WANT_FLUIDSYNTH

  1718. 

  1719. CARLA_BACKEND_START_NAMESPACE

  1720. 

  1721. CarlaPlugin* CarlaPlugin::newFluidSynth(const Initializer& init, const bool use16Outs)

  1722. {

  1723.     carla_debug("CarlaPlugin::newFluidSynth({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "}, %s)", init.engine, init.filename, init.name, init.label, init.uniqueId, bool2str(use16Outs));

  1724. 

  1725. #ifdef WANT_FLUIDSYNTH

  1726.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && use16Outs)

  1727.     {

  1728.         init.engine->setLastError("Carla's rack mode can only work with Stereo modules, please choose the 2-channel only SoundFont version");

  1729.         return nullptr;

  1730.     }

  1731. 

  1732.     if (! fluid_is_soundfont(init.filename))

  1733.     {

  1734.         init.engine->setLastError("Requested file is not a valid SoundFont");

  1735.         return nullptr;

  1736.     }

  1737. 

  1738.     FluidSynthPlugin* const plugin(new FluidSynthPlugin(init.engine, init.id,  use16Outs));

  1739. 

  1740.     if (! plugin->init(init.filename, init.name, init.label))

  1741.     {

  1742.         delete plugin;

  1743.         return nullptr;

  1744.     }

  1745. 

  1746.     plugin->reload();

  1747. 

  1748.     return plugin;

  1749. #else

  1750.     init.engine->setLastError("fluidsynth support not available");

  1751.     return nullptr;

  1752. 

  1753.     // unused

  1754.     (void)use16Outs;

  1755. #endif

  1756. }

  1757. 

  1758. CARLA_BACKEND_END_NAMESPACE