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Carla/source/backend/plugin/FluidSynthPlugin.cpp

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  1. /*

  2.  * Carla FluidSynth 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_FLUIDSYNTH

  21. 

  22. #include <fluidsynth.h>

  23. 

  24. #include <QtCore/QStringList>

  25. 

  26. #define FLUIDSYNTH_VERSION_NEW_API (FLUIDSYNTH_VERSION_MAJOR >= 1 && FLUIDSYNTH_VERSION_MINOR >= 1 && FLUIDSYNTH_VERSION_MICRO >= 4)

  27. 

  28. CARLA_BACKEND_START_NAMESPACE

  29. 

  30. #if 0

  31. }

  32. #endif

  33. 

  34. #define FLUID_DEFAULT_POLYPHONY 64

  35. 

  36. class FluidSynthPlugin : public CarlaPlugin

  37. {

  38. public:

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

  40.         : CarlaPlugin(engine, id),

  41.           kUses16Outs(use16Outs),

  42.           fSettings(nullptr),

  43.           fSynth(nullptr),

  44.           fSynthId(-1),

  45.           fAudio16Buffers(nullptr),

  46.           fParamBuffers{0.0f},

  47.           fCurMidiProgs{0}

  48.     {

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

  50. 

  51.         // create settings

  52.         fSettings = new_fluid_settings();

  53.         CARLA_ASSERT(fSettings != nullptr);

  54. 

  55.         // define settings

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

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

  58.         fluid_settings_setnum(fSettings, "synth.sample-rate", kData->engine->getSampleRate());

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

  60. 

  61.         // create synth

  62.         fSynth = new_fluid_synth(fSettings);

  63.         CARLA_ASSERT(fSynth != nullptr);

  64. 

  65. #ifdef FLUIDSYNTH_VERSION_NEW_API

  66.         fluid_synth_set_sample_rate(fSynth, kData->engine->getSampleRate());

  67. #endif

  68. 

  69.         // set default values

  70.         fluid_synth_set_reverb_on(fSynth, 0);

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

  72. 

  73.         fluid_synth_set_chorus_on(fSynth, 0);

  74.         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);

  75. 

  76.         fluid_synth_set_polyphony(fSynth, FLUID_DEFAULT_POLYPHONY);

  77.         fluid_synth_set_gain(fSynth, 1.0f);

  78. 

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

  80.             fluid_synth_set_interp_method(fSynth, i, FLUID_INTERP_DEFAULT);

  81.     }

  82. 

  83.     ~FluidSynthPlugin() override

  84.     {

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

  86. 

  87.         kData->singleMutex.lock();

  88.         kData->masterMutex.lock();

  89. 

  90.         if (kData->active)

  91.         {

  92.             deactivate();

  93.             kData->active = false;

  94.         }

  95. 

  96.         delete_fluid_synth(fSynth);

  97.         delete_fluid_settings(fSettings);

  98. 

  99.         clearBuffers();

  100.     }

  101. 

  102.     // -------------------------------------------------------------------

  103.     // Information (base)

  104. 

  105.     PluginType type() const override

  106.     {

  107.         return PLUGIN_SF2;

  108.     }

  109. 

  110.     PluginCategory category() override

  111.     {

  112.         return PLUGIN_CATEGORY_SYNTH;

  113.     }

  114. 

  115.     // -------------------------------------------------------------------

  116.     // Information (count)

  117. 

  118.     uint32_t parameterScalePointCount(const uint32_t parameterId) const override

  119.     {

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

  121. 

  122.         switch (parameterId)

  123.         {

  124.         case FluidSynthChorusType:

  125.             return 2;

  126.         case FluidSynthInterpolation:

  127.             return 4;

  128.         default:

  129.             return 0;

  130.         }

  131.     }

  132. 

  133.     // -------------------------------------------------------------------

  134.     // Information (current data)

  135. 

  136.     // nothing

  137. 

  138.     // -------------------------------------------------------------------

  139.     // Information (per-plugin data)

  140. 

  141.     unsigned int availableOptions() override

  142.     {

  143.         unsigned int options = 0x0;

  144. 

  145.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  146.         options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  147.         options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  148.         options |= PLUGIN_OPTION_SEND_PITCHBEND;

  149.         options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  150. 

  151.         return options;

  152.     }

  153. 

  154.     float getParameterValue(const uint32_t parameterId) override

  155.     {

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

  157. 

  158.         return fParamBuffers[parameterId];

  159.     }

  160. 

  161.     float getParameterScalePointValue(const uint32_t parameterId, const uint32_t scalePointId) override

  162.     {

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

  164.         CARLA_ASSERT(scalePointId < parameterScalePointCount(parameterId));

  165. 

  166.         switch (parameterId)

  167.         {

  168.         case FluidSynthChorusType:

  169.             switch (scalePointId)

  170.             {

  171.             case 0:

  172.                 return FLUID_CHORUS_MOD_SINE;

  173.             case 1:

  174.                 return FLUID_CHORUS_MOD_TRIANGLE;

  175.             default:

  176.                 return FLUID_CHORUS_DEFAULT_TYPE;

  177.             }

  178.         case FluidSynthInterpolation:

  179.             switch (scalePointId)

  180.             {

  181.             case 0:

  182.                 return FLUID_INTERP_NONE;

  183.             case 1:

  184.                 return FLUID_INTERP_LINEAR;

  185.             case 2:

  186.                 return FLUID_INTERP_4THORDER;

  187.             case 3:

  188.                 return FLUID_INTERP_7THORDER;

  189.             default:

  190.                 return FLUID_INTERP_DEFAULT;

  191.             }

  192.         default:

  193.             return 0.0f;

  194.         }

  195.     }

  196. 

  197.     void getLabel(char* const strBuf) override

  198.     {

  199.         if (fLabel.isNotEmpty())

  200.             std::strncpy(strBuf, (const char*)fLabel, STR_MAX);

  201.         else

  202.             CarlaPlugin::getLabel(strBuf);

  203.     }

  204. 

  205.     void getMaker(char* const strBuf) override

  206.     {

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

  208.     }

  209. 

  210.     void getCopyright(char* const strBuf) override

  211.     {

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

  213.     }

  214. 

  215.     void getRealName(char* const strBuf) override

  216.     {

  217.         getLabel(strBuf);

  218.     }

  219. 

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

  221.     {

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

  223. 

  224.         switch (parameterId)

  225.         {

  226.         case FluidSynthReverbOnOff:

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

  228.             break;

  229.         case FluidSynthReverbRoomSize:

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

  231.             break;

  232.         case FluidSynthReverbDamp:

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

  234.             break;

  235.         case FluidSynthReverbLevel:

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

  237.             break;

  238.         case FluidSynthReverbWidth:

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

  240.             break;

  241.         case FluidSynthChorusOnOff:

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

  243.             break;

  244.         case FluidSynthChorusNr:

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

  246.             break;

  247.         case FluidSynthChorusLevel:

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

  249.             break;

  250.         case FluidSynthChorusSpeedHz:

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

  252.             break;

  253.         case FluidSynthChorusDepthMs:

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

  255.             break;

  256.         case FluidSynthChorusType:

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

  258.             break;

  259.         case FluidSynthPolyphony:

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

  261.             break;

  262.         case FluidSynthInterpolation:

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

  264.             break;

  265.         case FluidSynthVoiceCount:

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

  267.             break;

  268.         default:

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

  270.             break;

  271.         }

  272.     }

  273. 

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

  275.     {

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

  277. 

  278.         switch (parameterId)

  279.         {

  280.         case FluidSynthChorusSpeedHz:

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

  282.             break;

  283.         case FluidSynthChorusDepthMs:

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

  285.             break;

  286.         default:

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

  288.             break;

  289.         }

  290.     }

  291. 

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

  293.     {

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

  295.         CARLA_ASSERT(scalePointId < parameterScalePointCount(parameterId));

  296. 

  297.         switch (parameterId)

  298.         {

  299.         case FluidSynthChorusType:

  300.             switch (scalePointId)

  301.             {

  302.             case 0:

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

  304.                 return;

  305.             case 1:

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

  307.                 return;

  308.             }

  309.         case FluidSynthInterpolation:

  310.             switch (scalePointId)

  311.             {

  312.             case 0:

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

  314.                 return;

  315.             case 1:

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

  317.                 return;

  318.             case 2:

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

  320.                 return;

  321.             case 3:

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

  323.                 return;

  324.             }

  325.         }

  326. 

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

  328.     }

  329. 

  330.     // -------------------------------------------------------------------

  331.     // Set data (state)

  332. 

  333.     void prepareForSave() override

  334.     {

  335.         CARLA_ASSERT(fSynth != nullptr);

  336. 

  337.         char strBuf[STR_MAX+1];

  338.         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],

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

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

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

  342. 

  343.         CarlaPlugin::setCustomData(CUSTOM_DATA_STRING, "midiPrograms", strBuf, false);

  344.     }

  345. 

  346.     // -------------------------------------------------------------------

  347.     // Set data (internal stuff)

  348. 

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

  350.     {

  351.         if (channel < MAX_MIDI_CHANNELS)

  352.             kData->midiprog.current = fCurMidiProgs[channel];

  353. 

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

  355.     }

  356. 

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

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

  359. 

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

  361.     {

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

  363. 

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

  365.         fParamBuffers[parameterId] = fixedValue;

  366. 

  367.         {

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

  369. 

  370.             switch (parameterId)

  371.             {

  372.             case FluidSynthReverbOnOff:

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

  374.                 break;

  375. 

  376.             case FluidSynthReverbRoomSize:

  377.             case FluidSynthReverbDamp:

  378.             case FluidSynthReverbLevel:

  379.             case FluidSynthReverbWidth:

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

  381.                 break;

  382. 

  383.             case FluidSynthChorusOnOff:

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

  385.                 break;

  386. 

  387.             case FluidSynthChorusNr:

  388.             case FluidSynthChorusLevel:

  389.             case FluidSynthChorusSpeedHz:

  390.             case FluidSynthChorusDepthMs:

  391.             case FluidSynthChorusType:

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

  393.                 break;

  394. 

  395.             case FluidSynthPolyphony:

  396.                 fluid_synth_set_polyphony(fSynth, value);

  397.                 break;

  398. 

  399.             case FluidSynthInterpolation:

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

  401.                     fluid_synth_set_interp_method(fSynth, i, value);

  402.                 break;

  403. 

  404.             default:

  405.                 break;

  406.             }

  407.         }

  408. 

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

  410.     }

  411. 

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

  413.     {

  414.         CARLA_ASSERT(fSynth != nullptr);

  415.         CARLA_ASSERT(type != nullptr);

  416.         CARLA_ASSERT(key != nullptr);

  417.         CARLA_ASSERT(value != nullptr);

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

  419. 

  420.         if (type == nullptr)

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

  422. 

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

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

  425. 

  426.         if (key == nullptr)

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

  428. 

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

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

  431. 

  432.         if (value == nullptr)

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

  434. 

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

  436. 

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

  438.         {

  439.             uint i = 0;

  440.             foreach (const QString& midiProg, midiProgramList)

  441.             {

  442.                 bool ok;

  443.                 uint index = midiProg.toUInt(&ok);

  444. 

  445.                 if (ok && index < kData->midiprog.count)

  446.                 {

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

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

  449. 

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

  451.                     fCurMidiProgs[i] = index;

  452. 

  453.                     if (kData->ctrlChannel == static_cast<int32_t>(i))

  454.                         kData->engine->callback(CALLBACK_MIDI_PROGRAM_CHANGED, fId, index, 0, 0.0f, nullptr);

  455.                 }

  456. 

  457.                 ++i;

  458.             }

  459.         }

  460. 

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

  462.     }

  463. 

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

  465.     {

  466.         CARLA_ASSERT(fSynth != nullptr);

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

  468. 

  469.         if (index < -1)

  470.             index = -1;

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

  472.             return;

  473. 

  474.         if (kData->ctrlChannel < 0 || kData->ctrlChannel >= MAX_MIDI_CHANNELS)

  475.             return;

  476. 

  477.         if (index >= 0)

  478.         {

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

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

  481. 

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

  483.             fluid_synth_program_select(fSynth, kData->ctrlChannel, fSynthId, bank, program);

  484.             fCurMidiProgs[kData->ctrlChannel] = index;

  485.         }

  486. 

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

  488.     }

  489. 

  490.     // -------------------------------------------------------------------

  491.     // Set gui stuff

  492. 

  493.     // nothing

  494. 

  495.     // -------------------------------------------------------------------

  496.     // Plugin state

  497. 

  498.     void reload() override

  499.     {

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

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

  502.         CARLA_ASSERT(fSynth != nullptr);

  503. 

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

  505.             return;

  506.         if (fSynth == nullptr)

  507.             return;

  508. 

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

  510. 

  511.         // Safely disable plugin for reload

  512.         const ScopedDisabler sd(this);

  513. 

  514.         if (kData->active)

  515.             deactivate();

  516. 

  517.         clearBuffers();

  518. 

  519.         uint32_t aOuts, params, j;

  520.         aOuts  = kUses16Outs ? 32 : 2;

  521.         params = FluidSynthParametersMax;

  522. 

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

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

  525. 

  526.         const int   portNameSize = kData->engine->maxPortNameSize();

  527.         CarlaString portName;

  528. 

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

  530.         // Audio Outputs

  531. 

  532.         if (kUses16Outs)

  533.         {

  534.             for (j=0; j < 32; ++j)

  535.             {

  536.                 portName.clear();

  537. 

  538.                 if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  539.                 {

  540.                     portName  = fName;

  541.                     portName += ":";

  542.                 }

  543. 

  544.                 portName += "out-";

  545. 

  546.                 if ((j+2)/2 < 9)

  547.                     portName += "0";

  548. 

  549.                 portName += CarlaString((j+2)/2);

  550. 

  551.                 if (j % 2 == 0)

  552.                     portName += "L";

  553.                 else

  554.                     portName += "R";

  555. 

  556.                 portName.truncate(portNameSize);

  557. 

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

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

  560.             }

  561. 

  562.             fAudio16Buffers = new float*[aOuts];

  563. 

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

  565.                 fAudio16Buffers[j] = nullptr;

  566.         }

  567.         else

  568.         {

  569.             // out-left

  570.             portName.clear();

  571. 

  572.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  573.             {

  574.                 portName  = fName;

  575.                 portName += ":";

  576.             }

  577. 

  578.             portName += "out-left";

  579.             portName.truncate(portNameSize);

  580. 

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

  582.             kData->audioOut.ports[0].rindex = 0;

  583. 

  584.             // out-right

  585.             portName.clear();

  586. 

  587.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  588.             {

  589.                 portName  = fName;

  590.                 portName += ":";

  591.             }

  592. 

  593.             portName += "out-right";

  594.             portName.truncate(portNameSize);

  595. 

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

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

  598.         }

  599. 

  600.         // ---------------------------------------

  601.         // Event Input

  602. 

  603.         {

  604.             portName.clear();

  605. 

  606.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  607.             {

  608.                 portName  = fName;

  609.                 portName += ":";

  610.             }

  611. 

  612.             portName += "event-in";

  613.             portName.truncate(portNameSize);

  614. 

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

  616.         }

  617. 

  618.         // ---------------------------------------

  619.         // Event Output

  620. 

  621.         {

  622.             portName.clear();

  623. 

  624.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  625.             {

  626.                 portName  = fName;

  627.                 portName += ":";

  628.             }

  629. 

  630.             portName += "event-out";

  631.             portName.truncate(portNameSize);

  632. 

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

  634.         }

  635. 

  636.         // ----------------------

  637.         j = FluidSynthReverbOnOff;

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

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

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

  641.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_AUTOMABLE | PARAMETER_IS_BOOLEAN;

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

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

  644.         kData->param.ranges[j].min = 0.0f;

  645.         kData->param.ranges[j].max = 1.0f;

  646.         kData->param.ranges[j].def = 0.0f; // off

  647.         kData->param.ranges[j].step = 1.0f;

  648.         kData->param.ranges[j].stepSmall = 1.0f;

  649.         kData->param.ranges[j].stepLarge = 1.0f;

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

  651. 

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

  653.         j = FluidSynthReverbRoomSize;

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

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

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

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

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

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

  660.         kData->param.ranges[j].min = 0.0f;

  661.         kData->param.ranges[j].max = 1.2f;

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

  663.         kData->param.ranges[j].step = 0.01f;

  664.         kData->param.ranges[j].stepSmall = 0.0001f;

  665.         kData->param.ranges[j].stepLarge = 0.1f;

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

  667. 

  668.         // ----------------------

  669.         j = FluidSynthReverbDamp;

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

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

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

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

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

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

  676.         kData->param.ranges[j].min = 0.0f;

  677.         kData->param.ranges[j].max = 1.0f;

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

  679.         kData->param.ranges[j].step = 0.01f;

  680.         kData->param.ranges[j].stepSmall = 0.0001f;

  681.         kData->param.ranges[j].stepLarge = 0.1f;

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

  683. 

  684.         // ----------------------

  685.         j = FluidSynthReverbLevel;

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

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

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

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

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

  691.         kData->param.data[j].midiCC = MIDI_CONTROL_REVERB_SEND_LEVEL;

  692.         kData->param.ranges[j].min = 0.0f;

  693.         kData->param.ranges[j].max = 1.0f;

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

  695.         kData->param.ranges[j].step = 0.01f;

  696.         kData->param.ranges[j].stepSmall = 0.0001f;

  697.         kData->param.ranges[j].stepLarge = 0.1f;

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

  699. 

  700.         // ----------------------

  701.         j = FluidSynthReverbWidth;

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

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

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

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

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

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

  708.         kData->param.ranges[j].min = 0.0f;

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

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

  711.         kData->param.ranges[j].step = 0.01f;

  712.         kData->param.ranges[j].stepSmall = 0.0001f;

  713.         kData->param.ranges[j].stepLarge = 0.1f;

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

  715. 

  716.         // ----------------------

  717.         j = FluidSynthChorusOnOff;

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

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

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

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

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

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

  724.         kData->param.ranges[j].min = 0.0f;

  725.         kData->param.ranges[j].max = 1.0f;

  726.         kData->param.ranges[j].def = 0.0f; // off

  727.         kData->param.ranges[j].step = 1.0f;

  728.         kData->param.ranges[j].stepSmall = 1.0f;

  729.         kData->param.ranges[j].stepLarge = 1.0f;

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

  731. 

  732.         // ----------------------

  733.         j = FluidSynthChorusNr;

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

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

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

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

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

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

  740.         kData->param.ranges[j].min = 0.0f;

  741.         kData->param.ranges[j].max = 99.0f;

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

  743.         kData->param.ranges[j].step = 1.0f;

  744.         kData->param.ranges[j].stepSmall = 1.0f;

  745.         kData->param.ranges[j].stepLarge = 10.0f;

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

  747. 

  748.         // ----------------------

  749.         j = FluidSynthChorusLevel;

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

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

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

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

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

  755.         kData->param.data[j].midiCC = 0; //MIDI_CONTROL_CHORUS_SEND_LEVEL;

  756.         kData->param.ranges[j].min = 0.0f;

  757.         kData->param.ranges[j].max = 10.0f;

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

  759.         kData->param.ranges[j].step = 0.01f;

  760.         kData->param.ranges[j].stepSmall = 0.0001f;

  761.         kData->param.ranges[j].stepLarge = 0.1f;

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

  763. 

  764.         // ----------------------

  765.         j = FluidSynthChorusSpeedHz;

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

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

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

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

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

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

  772.         kData->param.ranges[j].min = 0.29f;

  773.         kData->param.ranges[j].max = 5.0f;

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

  775.         kData->param.ranges[j].step = 0.01f;

  776.         kData->param.ranges[j].stepSmall = 0.0001f;

  777.         kData->param.ranges[j].stepLarge = 0.1f;

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

  779. 

  780.         // ----------------------

  781.         j = FluidSynthChorusDepthMs;

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

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

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

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

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

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

  788.         kData->param.ranges[j].min = 0.0f;

  789.         kData->param.ranges[j].max = 2048000.0 / kData->engine->getSampleRate();

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

  791.         kData->param.ranges[j].step = 0.01f;

  792.         kData->param.ranges[j].stepSmall = 0.0001f;

  793.         kData->param.ranges[j].stepLarge = 0.1f;

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

  795. 

  796.         // ----------------------

  797.         j = FluidSynthChorusType;

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

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

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

  801.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_INTEGER | PARAMETER_USES_SCALEPOINTS;

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

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

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

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

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

  807.         kData->param.ranges[j].step = 1.0f;

  808.         kData->param.ranges[j].stepSmall = 1.0f;

  809.         kData->param.ranges[j].stepLarge = 1.0f;

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

  811. 

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

  813.         j = FluidSynthPolyphony;

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

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

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

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

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

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

  820.         kData->param.ranges[j].min = 1.0f;

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

  822.         kData->param.ranges[j].def = fluid_synth_get_polyphony(fSynth);

  823.         kData->param.ranges[j].step = 1.0f;

  824.         kData->param.ranges[j].stepSmall = 1.0f;

  825.         kData->param.ranges[j].stepLarge = 10.0f;

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

  827. 

  828.         // ----------------------

  829.         j = FluidSynthInterpolation;

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

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

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

  833.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_INTEGER | PARAMETER_USES_SCALEPOINTS;

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

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

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

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

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

  839.         kData->param.ranges[j].step = 1.0f;

  840.         kData->param.ranges[j].stepSmall = 1.0f;

  841.         kData->param.ranges[j].stepLarge = 1.0f;

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

  843. 

  844.         // ----------------------

  845.         j = FluidSynthVoiceCount;

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

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

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

  849.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_AUTOMABLE | PARAMETER_IS_INTEGER;

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

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

  852.         kData->param.ranges[j].min = 0.0f;

  853.         kData->param.ranges[j].max = 65535.0f;

  854.         kData->param.ranges[j].def = 0.0f;

  855.         kData->param.ranges[j].step = 1.0f;

  856.         kData->param.ranges[j].stepSmall = 1.0f;

  857.         kData->param.ranges[j].stepLarge = 1.0f;

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

  859. 

  860.         // ---------------------------------------

  861. 

  862.         // plugin hints

  863.         fHints  = 0x0;

  864.         fHints |= PLUGIN_IS_SYNTH;

  865.         fHints |= PLUGIN_CAN_VOLUME;

  866.         fHints |= PLUGIN_CAN_BALANCE;

  867. 

  868.         // extra plugin hints

  869.         kData->extraHints  = 0x0;

  870.         kData->extraHints |= PLUGIN_HINT_HAS_MIDI_IN;

  871.         kData->extraHints |= PLUGIN_HINT_CAN_RUN_RACK;

  872. 

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

  874.         reloadPrograms(true);

  875. 

  876.         if (kData->active)

  877.             activate();

  878. 

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

  880.     }

  881. 

  882.     void reloadPrograms(const bool init) override

  883.     {

  884.         carla_debug("FluidSynthPlugin::reloadPrograms(%s)", bool2str(init));

  885. 

  886.         // Delete old programs

  887.         kData->midiprog.clear();

  888. 

  889.         // Query new programs

  890.         uint32_t count = 0;

  891.         fluid_sfont_t* f_sfont;

  892.         fluid_preset_t f_preset;

  893. 

  894.         bool hasDrums = false;

  895.         uint32_t drumIndex, drumProg;

  896. 

  897.         f_sfont = fluid_synth_get_sfont_by_id(fSynth, fSynthId);

  898. 

  899.         // initial check to know how much midi-programs we have

  900.         f_sfont->iteration_start(f_sfont);

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

  902.             count += 1;

  903. 

  904.         // soundfonts must always have at least 1 midi-program

  905.         CARLA_ASSERT(count > 0);

  906. 

  907.         if (count == 0)

  908.             return;

  909. 

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

  911. 

  912.         // Update data

  913.         uint32_t i = 0;

  914.         f_sfont->iteration_start(f_sfont);

  915. 

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

  917.         {

  918.             CARLA_ASSERT(i < kData->midiprog.count);

  919.             kData->midiprog.data[i].bank    = f_preset.get_banknum(&f_preset);

  920.             kData->midiprog.data[i].program = f_preset.get_num(&f_preset);

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

  922. 

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

  924.             {

  925.                 hasDrums  = true;

  926.                 drumIndex = i;

  927.                 drumProg  = kData->midiprog.data[i].program;

  928.             }

  929. 

  930.             ++i;

  931.         }

  932. 

  933.         //f_sfont->free(f_sfont);

  934. 

  935. #ifndef BUILD_BRIDGE

  936.         // Update OSC Names

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

  938.         {

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

  940. 

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

  942.                 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);

  943.         }

  944. #endif

  945. 

  946.         if (init)

  947.         {

  948.             fluid_synth_program_reset(fSynth);

  949. 

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

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

  952.             {

  953. #ifdef FLUIDSYNTH_VERSION_NEW_API

  954.                 fluid_synth_set_channel_type(fSynth, i, CHANNEL_TYPE_MELODIC);

  955. #endif

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

  957. 

  958.                 fCurMidiProgs[i] = 0;

  959.             }

  960. 

  961.             if (hasDrums)

  962.             {

  963. #ifdef FLUIDSYNTH_VERSION_NEW_API

  964.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_DRUM);

  965. #endif

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

  967. 

  968.                 fCurMidiProgs[9] = drumIndex;

  969.             }

  970.             else

  971.             {

  972. #ifdef FLUIDSYNTH_VERSION_NEW_API

  973.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_MELODIC);

  974. #endif

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

  976. 

  977.                 fCurMidiProgs[9] = 0;

  978.             }

  979. 

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

  981.         }

  982.         else

  983.         {

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

  985.         }

  986.     }

  987. 

  988.     // -------------------------------------------------------------------

  989.     // Plugin processing

  990. 

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

  992.     {

  993.         uint32_t i, k;

  994. 

  995.         // --------------------------------------------------------------------------------------------------------

  996.         // Check if active

  997. 

  998.         if (! kData->active)

  999.         {

  1000.             // disable any output sound

  1001.             for (i=0; i < kData->audioOut.count; ++i)

  1002.                 carla_zeroFloat(outBuffer[i], frames);

  1003. 

  1004.             return;

  1005.         }

  1006. 

  1007.         // --------------------------------------------------------------------------------------------------------

  1008.         // Check if needs reset

  1009. 

  1010.         if (kData->needsReset)

  1011.         {

  1012.             if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1013.             {

  1014.                 for (int c=0; c < MAX_MIDI_CHANNELS; ++c)

  1015.                 {

  1016. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1017.                     fluid_synth_all_notes_off(fSynth, c);

  1018.                     fluid_synth_all_sounds_off(fSynth, c);

  1019. #else

  1020.                     fluid_synth_cc(fSynth, c, MIDI_CONTROL_ALL_SOUND_OFF, 0);

  1021.                     fluid_synth_cc(fSynth, c, MIDI_CONTROL_ALL_NOTES_OFF, 0);

  1022. #endif

  1023.                 }

  1024.             }

  1025.             else if (kData->ctrlChannel >= 0 && kData->ctrlChannel < MAX_MIDI_CHANNELS)

  1026.             {

  1027.                 for (k=0; k < MAX_MIDI_NOTE; ++k)

  1028.                     fluid_synth_noteoff(fSynth, kData->ctrlChannel, k);

  1029.             }

  1030. 

  1031.             kData->needsReset = false;

  1032.         }

  1033. 

  1034.         // --------------------------------------------------------------------------------------------------------

  1035.         // Event Input and Processing

  1036. 

  1037.         {

  1038.             // ----------------------------------------------------------------------------------------------------

  1039.             // MIDI Input (External)

  1040. 

  1041.             if (kData->extNotes.mutex.tryLock())

  1042.             {

  1043.                 while (! kData->extNotes.data.isEmpty())

  1044.                 {

  1045.                     const ExternalMidiNote& note(kData->extNotes.data.getFirst(true));

  1046. 

  1047.                     CARLA_ASSERT(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1048. 

  1049.                     if (note.velo > 0)

  1050.                         fluid_synth_noteon(fSynth, note.channel, note.note, note.velo);

  1051.                     else

  1052.                         fluid_synth_noteoff(fSynth,note.channel, note.note);

  1053.                 }

  1054. 

  1055.                 kData->extNotes.mutex.unlock();

  1056. 

  1057.             } // End of MIDI Input (External)

  1058. 

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

  1060.             // Event Input (System)

  1061. 

  1062.             bool allNotesOffSent = false;

  1063. 

  1064.             uint32_t time, nEvents = kData->event.portIn->getEventCount();

  1065.             uint32_t timeOffset = 0;

  1066. 

  1067.             uint32_t nextBankIds[MAX_MIDI_CHANNELS] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 };

  1068. 

  1069.             if (kData->midiprog.current >= 0 && kData->midiprog.count > 0 && kData->ctrlChannel >= 0 && kData->ctrlChannel < MAX_MIDI_CHANNELS)

  1070.                 nextBankIds[kData->ctrlChannel] = kData->midiprog.data[kData->midiprog.current].bank;

  1071. 

  1072.             for (i=0; i < nEvents; ++i)

  1073.             {

  1074.                 const EngineEvent& event(kData->event.portIn->getEvent(i));

  1075. 

  1076.                 time = event.time;

  1077. 

  1078.                 if (time >= frames)

  1079.                     continue;

  1080. 

  1081.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  1082. 

  1083.                 if (time > timeOffset)

  1084.                 {

  1085.                     if (processSingle(outBuffer, time - timeOffset, timeOffset))

  1086.                     {

  1087.                         timeOffset = time;

  1088. 

  1089.                         if (kData->midiprog.current >= 0 && kData->midiprog.count > 0 && kData->ctrlChannel >= 0 && kData->ctrlChannel < 16)

  1090.                             nextBankIds[kData->ctrlChannel] = kData->midiprog.data[kData->midiprog.current].bank;

  1091.                     }

  1092.                 }

  1093. 

  1094.                 // Control change

  1095.                 switch (event.type)

  1096.                 {

  1097.                 case kEngineEventTypeNull:

  1098.                     break;

  1099. 

  1100.                 case kEngineEventTypeControl:

  1101.                 {

  1102.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1103. 

  1104.                     switch (ctrlEvent.type)

  1105.                     {

  1106.                     case kEngineControlEventTypeNull:

  1107.                         break;

  1108. 

  1109.                     case kEngineControlEventTypeParameter:

  1110.                     {

  1111. #ifndef BUILD_BRIDGE

  1112.                         // Control backend stuff

  1113.                         if (event.channel == kData->ctrlChannel)

  1114.                         {

  1115.                             float value;

  1116. 

  1117.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (fHints & PLUGIN_CAN_DRYWET) > 0)

  1118.                             {

  1119.                                 value = ctrlEvent.value;

  1120.                                 setDryWet(value, false, false);

  1121.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1122.                                 continue;

  1123.                             }

  1124. 

  1125.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (fHints & PLUGIN_CAN_VOLUME) > 0)

  1126.                             {

  1127.                                 value = ctrlEvent.value*127.0f/100.0f;

  1128.                                 setVolume(value, false, false);

  1129.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1130.                                 continue;

  1131.                             }

  1132. 

  1133.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (fHints & PLUGIN_CAN_BALANCE) > 0)

  1134.                             {

  1135.                                 float left, right;

  1136.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1137. 

  1138.                                 if (value < 0.0f)

  1139.                                 {

  1140.                                     left  = -1.0f;

  1141.                                     right = (value*2.0f)+1.0f;

  1142.                                 }

  1143.                                 else if (value > 0.0f)

  1144.                                 {

  1145.                                     left  = (value*2.0f)-1.0f;

  1146.                                     right = 1.0f;

  1147.                                 }

  1148.                                 else

  1149.                                 {

  1150.                                     left  = -1.0f;

  1151.                                     right = 1.0f;

  1152.                                 }

  1153. 

  1154.                                 setBalanceLeft(left, false, false);

  1155.                                 setBalanceRight(right, false, false);

  1156.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1157.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1158.                                 continue;

  1159.                             }

  1160.                         }

  1161. #endif

  1162. 

  1163.                         // Control plugin parameters

  1164.                         for (k=0; k < kData->param.count; ++k)

  1165.                         {

  1166.                             if (kData->param.data[k].midiChannel != event.channel)

  1167.                                 continue;

  1168.                             if (kData->param.data[k].midiCC != ctrlEvent.param)

  1169.                                 continue;

  1170.                             if (kData->param.data[k].type != PARAMETER_INPUT)

  1171.                                 continue;

  1172.                             if ((kData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1173.                                 continue;

  1174. 

  1175.                             float value;

  1176. 

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

  1178.                             {

  1179.                                 value = (ctrlEvent.value < 0.5f) ? kData->param.ranges[k].min : kData->param.ranges[k].max;

  1180.                             }

  1181.                             else

  1182.                             {

  1183.                                 value = kData->param.ranges[i].unnormalizeValue(ctrlEvent.value);

  1184. 

  1185.                                 if (kData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1186.                                     value = std::rint(value);

  1187.                             }

  1188. 

  1189.                             setParameterValue(k, value, false, false, false);

  1190.                             postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1191.                         }

  1192. 

  1193.                         break;

  1194.                     }

  1195. 

  1196.                     case kEngineControlEventTypeMidiBank:

  1197.                         if (event.channel < MAX_MIDI_CHANNELS && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1198.                             nextBankIds[event.channel] = ctrlEvent.param;

  1199.                         break;

  1200. 

  1201.                     case kEngineControlEventTypeMidiProgram:

  1202.                         if (event.channel < MAX_MIDI_CHANNELS && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1203.                         {

  1204.                             const uint32_t bankId(nextBankIds[event.channel]);

  1205.                             const uint32_t progId(ctrlEvent.param);

  1206. 

  1207.                             for (k=0; k < kData->midiprog.count; ++k)

  1208.                             {

  1209.                                 if (kData->midiprog.data[k].bank == bankId && kData->midiprog.data[k].program == progId)

  1210.                                 {

  1211.                                     fluid_synth_program_select(fSynth, event.channel, fSynthId, bankId, progId);

  1212.                                     fCurMidiProgs[event.channel] = k;

  1213. 

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

  1215.                                         postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0f);

  1216. 

  1217.                                     break;

  1218.                                 }

  1219.                             }

  1220.                         }

  1221.                         break;

  1222. 

  1223.                     case kEngineControlEventTypeAllSoundOff:

  1224.                         if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1225.                         {

  1226. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1227.                             fluid_synth_all_sounds_off(fSynth, event.channel);

  1228. #else

  1229.                             fluid_synth_cc(fSynth, event.channel, MIDI_CONTROL_ALL_SOUND_OFF, 0);

  1230. #endif

  1231.                         }

  1232.                         break;

  1233. 

  1234.                     case kEngineControlEventTypeAllNotesOff:

  1235.                         if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1236.                         {

  1237.                             if (event.channel == kData->ctrlChannel && ! allNotesOffSent)

  1238.                             {

  1239.                                 allNotesOffSent = true;

  1240.                                 sendMidiAllNotesOffToCallback();

  1241.                             }

  1242. 

  1243. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1244.                             fluid_synth_all_notes_off(fSynth, event.channel);

  1245. #else

  1246.                             fluid_synth_cc(fSynth, event.channel, MIDI_CONTROL_ALL_NOTES_OFF, 0);

  1247. #endif

  1248.                         }

  1249.                         break;

  1250.                     }

  1251. 

  1252.                     break;

  1253.                 }

  1254. 

  1255.                 case kEngineEventTypeMidi:

  1256.                 {

  1257.                     const EngineMidiEvent& midiEvent(event.midi);

  1258. 

  1259.                     uint8_t status  = MIDI_GET_STATUS_FROM_DATA(midiEvent.data);

  1260.                     uint8_t channel = event.channel;

  1261. 

  1262.                     // Fix bad note-off

  1263.                     if (MIDI_IS_STATUS_NOTE_ON(status) && midiEvent.data[2] == 0)

  1264.                         status -= 0x10;

  1265. 

  1266.                     if (MIDI_IS_STATUS_NOTE_OFF(status))

  1267.                     {

  1268.                         const uint8_t note = midiEvent.data[1];

  1269. 

  1270.                         fluid_synth_noteoff(fSynth, channel, note);

  1271. 

  1272.                         postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0f);

  1273.                     }

  1274.                     else if (MIDI_IS_STATUS_NOTE_ON(status))

  1275.                     {

  1276.                         const uint8_t note = midiEvent.data[1];

  1277.                         const uint8_t velo = midiEvent.data[2];

  1278. 

  1279.                         fluid_synth_noteon(fSynth, channel, note, velo);

  1280. 

  1281.                         postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1282.                     }

  1283.                     else if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) != 0)

  1284.                     {

  1285.                         //const uint8_t note     = midiEvent.data[1];

  1286.                         //const uint8_t pressure = midiEvent.data[2];

  1287. 

  1288.                         // TODO, not in fluidsynth API

  1289.                     }

  1290.                     else if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (fOptions & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0)

  1291.                     {

  1292.                         const uint8_t control = midiEvent.data[1];

  1293.                         const uint8_t value   = midiEvent.data[2];

  1294. 

  1295.                         fluid_synth_cc(fSynth, channel, control, value);

  1296.                     }

  1297.                     else if (MIDI_IS_STATUS_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) != 0)

  1298.                     {

  1299.                         const uint8_t pressure = midiEvent.data[1];

  1300. 

  1301.                         fluid_synth_channel_pressure(fSynth, channel, pressure);;

  1302.                     }

  1303.                     else if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (fOptions & PLUGIN_OPTION_SEND_PITCHBEND) != 0)

  1304.                     {

  1305.                         const uint8_t lsb = midiEvent.data[1];

  1306.                         const uint8_t msb = midiEvent.data[2];

  1307. 

  1308.                         fluid_synth_pitch_bend(fSynth, channel, (msb << 7) | lsb);

  1309.                     }

  1310. 

  1311.                     break;

  1312.                 }

  1313.                 }

  1314.             }

  1315. 

  1316.             kData->postRtEvents.trySplice();

  1317. 

  1318.             if (frames > timeOffset)

  1319.                 processSingle(outBuffer, frames - timeOffset, timeOffset);

  1320. 

  1321.         } // End of Event Input and Processing

  1322. 

  1323.         CARLA_PROCESS_CONTINUE_CHECK;

  1324. 

  1325.         // --------------------------------------------------------------------------------------------------------

  1326.         // Control Output

  1327. 

  1328.         {

  1329.             k = FluidSynthVoiceCount;

  1330.             fParamBuffers[k] = fluid_synth_get_active_voice_count(fSynth);

  1331.             kData->param.ranges[k].fixValue(fParamBuffers[k]);

  1332. 

  1333.             if (kData->param.data[k].midiCC > 0)

  1334.             {

  1335.                 float value(kData->param.ranges[k].normalizeValue(fParamBuffers[k]));

  1336.                 kData->event.portOut->writeControlEvent(0, kData->param.data[k].midiChannel, kEngineControlEventTypeParameter, kData->param.data[k].midiCC, value);

  1337.             }

  1338. 

  1339.         } // End of Control Output

  1340.     }

  1341. 

  1342.     bool processSingle(float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1343.     {

  1344.         CARLA_ASSERT(outBuffer != nullptr);

  1345.         CARLA_ASSERT(frames > 0);

  1346. 

  1347.         if (outBuffer == nullptr)

  1348.             return false;

  1349.         if (frames == 0)

  1350.             return false;

  1351. 

  1352.         uint32_t i, k;

  1353. 

  1354.         // --------------------------------------------------------------------------------------------------------

  1355.         // Try lock, silence otherwise

  1356. 

  1357.         if (kData->engine->isOffline())

  1358.         {

  1359.             kData->singleMutex.lock();

  1360.         }

  1361.         else if (! kData->singleMutex.tryLock())

  1362.         {

  1363.             for (i=0; i < kData->audioOut.count; ++i)

  1364.             {

  1365.                 for (k=0; k < frames; ++k)

  1366.                     outBuffer[i][k+timeOffset] = 0.0f;

  1367.             }

  1368. 

  1369.             return false;

  1370.         }

  1371. 

  1372.         // --------------------------------------------------------------------------------------------------------

  1373.         // Fill plugin buffers and Run plugin

  1374. 

  1375.         if (kUses16Outs)

  1376.         {

  1377.             for (i=0; i < kData->audioOut.count; ++i)

  1378.                 carla_zeroFloat(fAudio16Buffers[i], frames);

  1379. 

  1380.             fluid_synth_process(fSynth, frames, 0, nullptr, kData->audioOut.count, fAudio16Buffers);

  1381.         }

  1382.         else

  1383.             fluid_synth_write_float(fSynth, frames, outBuffer[0] + timeOffset, 0, 1, outBuffer[1] + timeOffset, 0, 1);

  1384. 

  1385. #ifndef BUILD_BRIDGE

  1386.         // --------------------------------------------------------------------------------------------------------

  1387.         // Post-processing (volume and balance)

  1388. 

  1389.         {

  1390.             // note - balance not possible with kUses16Outs, so we can safely skip fAudioOutBuffers

  1391.             const bool doVolume  = (fHints & PLUGIN_CAN_VOLUME) > 0 && kData->postProc.volume != 1.0f;

  1392.             const bool doBalance = (fHints & PLUGIN_CAN_BALANCE) > 0 && (kData->postProc.balanceLeft != -1.0f || kData->postProc.balanceRight != 1.0f);

  1393. 

  1394.             float oldBufLeft[doBalance ? frames : 1];

  1395. 

  1396.             for (i=0; i < kData->audioOut.count; ++i)

  1397.             {

  1398.                 // Balance

  1399.                 if (doBalance)

  1400.                 {

  1401.                     if (i % 2 == 0)

  1402.                         carla_copyFloat(oldBufLeft, outBuffer[i]+timeOffset, frames);

  1403. 

  1404.                     float balRangeL = (kData->postProc.balanceLeft  + 1.0f)/2.0f;

  1405.                     float balRangeR = (kData->postProc.balanceRight + 1.0f)/2.0f;

  1406. 

  1407.                     for (k=0; k < frames; ++k)

  1408.                     {

  1409.                         if (i % 2 == 0)

  1410.                         {

  1411.                             // left

  1412.                             outBuffer[i][k+timeOffset]  = oldBufLeft[k]                * (1.0f - balRangeL);

  1413.                             outBuffer[i][k+timeOffset] += outBuffer[i+1][k+timeOffset] * (1.0f - balRangeR);

  1414.                         }

  1415.                         else

  1416.                         {

  1417.                             // right

  1418.                             outBuffer[i][k+timeOffset]  = outBuffer[i][k+timeOffset] * balRangeR;

  1419.                             outBuffer[i][k+timeOffset] += oldBufLeft[k]              * balRangeL;

  1420.                         }

  1421.                     }

  1422.                 }

  1423. 

  1424.                 // Volume

  1425.                 if (kUses16Outs)

  1426.                 {

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

  1428.                         outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k] * kData->postProc.volume;

  1429.                 }

  1430.                 else if (doVolume)

  1431.                 {

  1432.                     for (k=0; k < frames; ++k)

  1433.                         outBuffer[i][k+timeOffset] *= kData->postProc.volume;

  1434.                 }

  1435.             }

  1436. 

  1437.         } // End of Post-processing

  1438. #else

  1439.         if (kUses16Outs)

  1440.         {

  1441.             for (i=0; i < kData->audioOut.count; ++i)

  1442.             {

  1443.                 for (k=0; k < frames; ++k)

  1444.                     outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k];

  1445.             }

  1446.         }

  1447. #endif

  1448. 

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

  1450. 

  1451.         kData->singleMutex.unlock();

  1452.         return true;

  1453.     }

  1454. 

  1455.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1456.     {

  1457.         if (! kUses16Outs)

  1458.             return;

  1459. 

  1460.         for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1461.         {

  1462.             if (fAudio16Buffers[i] != nullptr)

  1463.                 delete[] fAudio16Buffers[i];

  1464.             fAudio16Buffers[i] = new float[newBufferSize];

  1465.         }

  1466.     }

  1467. 

  1468.     // -------------------------------------------------------------------

  1469.     // Plugin buffers

  1470. 

  1471.     void clearBuffers() override

  1472.     {

  1473.         carla_debug("FluidSynthPlugin::clearBuffers() - start");

  1474. 

  1475.         if (fAudio16Buffers != nullptr)

  1476.         {

  1477.             for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1478.             {

  1479.                 if (fAudio16Buffers[i] != nullptr)

  1480.                 {

  1481.                     delete[] fAudio16Buffers[i];

  1482.                     fAudio16Buffers[i] = nullptr;

  1483.                 }

  1484.             }

  1485. 

  1486.             delete[] fAudio16Buffers;

  1487.             fAudio16Buffers = nullptr;

  1488.         }

  1489. 

  1490.         CarlaPlugin::clearBuffers();

  1491. 

  1492.         carla_debug("FluidSynthPlugin::clearBuffers() - end");

  1493.     }

  1494. 

  1495.     // -------------------------------------------------------------------

  1496. 

  1497.     const void* getExtraStuff() override

  1498.     {

  1499.         return kUses16Outs ? (const void*)0x1 : nullptr;

  1500.     }

  1501. 

  1502.     bool init(const char* const filename, const char* const name, const char* const label)

  1503.     {

  1504.         CARLA_ASSERT(fSynth != nullptr);

  1505.         CARLA_ASSERT(filename != nullptr);

  1506.         CARLA_ASSERT(label != nullptr);

  1507. 

  1508.         // ---------------------------------------------------------------

  1509.         // first checks

  1510. 

  1511.         if (kData->engine == nullptr)

  1512.         {

  1513.             return false;

  1514.         }

  1515. 

  1516.         if (kData->client != nullptr)

  1517.         {

  1518.             kData->engine->setLastError("Plugin client is already registered");

  1519.             return false;

  1520.         }

  1521. 

  1522.         if (fSynth == nullptr)

  1523.         {

  1524.             kData->engine->setLastError("null synth");

  1525.             return false;

  1526.         }

  1527. 

  1528.         if (filename == nullptr)

  1529.         {

  1530.             kData->engine->setLastError("null filename");

  1531.             return false;

  1532.         }

  1533. 

  1534.         if (label == nullptr)

  1535.         {

  1536.             kData->engine->setLastError("null label");

  1537.             return false;

  1538.         }

  1539. 

  1540.         // ---------------------------------------------------------------

  1541.         // open soundfont

  1542. 

  1543.         fSynthId = fluid_synth_sfload(fSynth, filename, 0);

  1544. 

  1545.         if (fSynthId < 0)

  1546.         {

  1547.             kData->engine->setLastError("Failed to load SoundFont file");

  1548.             return false;

  1549.         }

  1550. 

  1551.         // ---------------------------------------------------------------

  1552.         // get info

  1553. 

  1554.         fFilename = filename;

  1555.         fLabel    = label;

  1556. 

  1557.         if (name != nullptr)

  1558.             fName = kData->engine->getUniquePluginName(name);

  1559.         else

  1560.             fName = kData->engine->getUniquePluginName(label);

  1561. 

  1562.         // ---------------------------------------------------------------

  1563.         // register client

  1564. 

  1565.         kData->client = kData->engine->addClient(this);

  1566. 

  1567.         if (kData->client == nullptr || ! kData->client->isOk())

  1568.         {

  1569.             kData->engine->setLastError("Failed to register plugin client");

  1570.             return false;

  1571.         }

  1572. 

  1573.         // ---------------------------------------------------------------

  1574.         // load plugin settings

  1575. 

  1576.         {

  1577.             // set default options

  1578.             fOptions = 0x0;

  1579. 

  1580.             fOptions |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1581.             fOptions |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1582.             fOptions |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  1583.             fOptions |= PLUGIN_OPTION_SEND_PITCHBEND;

  1584.             fOptions |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1585. 

  1586.             // load settings

  1587.             kData->idStr  = "SF2/";

  1588.             kData->idStr += label;

  1589.             fOptions = kData->loadSettings(fOptions, availableOptions());

  1590.         }

  1591. 

  1592.         return true;

  1593.     }

  1594. 

  1595. private:

  1596.     enum FluidSynthInputParameters {

  1597.         FluidSynthReverbOnOff    = 0,

  1598.         FluidSynthReverbRoomSize = 1,

  1599.         FluidSynthReverbDamp     = 2,

  1600.         FluidSynthReverbLevel    = 3,

  1601.         FluidSynthReverbWidth    = 4,

  1602.         FluidSynthChorusOnOff    = 5,

  1603.         FluidSynthChorusNr       = 6,

  1604.         FluidSynthChorusLevel    = 7,

  1605.         FluidSynthChorusSpeedHz  = 8,

  1606.         FluidSynthChorusDepthMs  = 9,

  1607.         FluidSynthChorusType     = 10,

  1608.         FluidSynthPolyphony      = 11,

  1609.         FluidSynthInterpolation  = 12,

  1610.         FluidSynthVoiceCount     = 13,

  1611.         FluidSynthParametersMax  = 14

  1612.     };

  1613. 

  1614.     const bool kUses16Outs;

  1615. 

  1616.     CarlaString fLabel;

  1617. 

  1618.     fluid_settings_t* fSettings;

  1619.     fluid_synth_t* fSynth;

  1620.     int fSynthId;

  1621. 

  1622.     float** fAudio16Buffers;

  1623.     float   fParamBuffers[FluidSynthParametersMax];

  1624. 

  1625.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  1626. 

  1627.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(FluidSynthPlugin)

  1628. };

  1629. 

  1630. CARLA_BACKEND_END_NAMESPACE

  1631. 

  1632. #else // WANT_FLUIDSYNTH

  1633. # warning fluidsynth not available (no SF2 support)

  1634. #endif

  1635. 

  1636. CARLA_BACKEND_START_NAMESPACE

  1637. 

  1638. CarlaPlugin* CarlaPlugin::newSF2(const Initializer& init, const bool use16Outs)

  1639. {

  1640.     carla_debug("CarlaPlugin::newSF2({%p, \"%s\", \"%s\", \"%s\"}, %s)", init.engine, init.filename, init.name, init.label, bool2str(use16Outs));

  1641. 

  1642. #ifdef WANT_FLUIDSYNTH

  1643.     if (! fluid_is_soundfont(init.filename))

  1644.     {

  1645.         init.engine->setLastError("Requested file is not a valid SoundFont");

  1646.         return nullptr;

  1647.     }

  1648. 

  1649.     if (init.engine->getProccessMode() == PROCESS_MODE_CONTINUOUS_RACK && use16Outs)

  1650.     {

  1651.         init.engine->setLastError("Carla's rack mode can only work with Stereo modules, please choose the 2-channel only SoundFont version");

  1652.         return nullptr;

  1653.     }

  1654. 

  1655.     FluidSynthPlugin* const plugin(new FluidSynthPlugin(init.engine, init.id,  use16Outs));

  1656. 

  1657.     if (! plugin->init(init.filename, init.name, init.label))

  1658.     {

  1659.         delete plugin;

  1660.         return nullptr;

  1661.     }

  1662. 

  1663.     plugin->reload();

  1664. 

  1665.     return plugin;

  1666. #else

  1667.     init.engine->setLastError("fluidsynth support not available");

  1668.     return nullptr;

  1669. 

  1670.     // unused

  1671.     (void)use16Outs;

  1672. #endif

  1673. }

  1674. 

  1675. CARLA_BACKEND_END_NAMESPACE