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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.                     {

  455.                         kData->midiprog.current = index;

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

  457.                     }

  458.                 }

  459. 

  460.                 ++i;

  461.             }

  462.         }

  463. 

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

  465.     }

  466. 

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

  468.     {

  469.         CARLA_ASSERT(fSynth != nullptr);

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

  471. 

  472.         if (index < -1)

  473.             index = -1;

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

  475.             return;

  476. 

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

  478.             return;

  479. 

  480.         if (index >= 0)

  481.         {

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

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

  484. 

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

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

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

  488.         }

  489. 

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

  491.     }

  492. 

  493.     // -------------------------------------------------------------------

  494.     // Set gui stuff

  495. 

  496.     // nothing

  497. 

  498.     // -------------------------------------------------------------------

  499.     // Plugin state

  500. 

  501.     void reload() override

  502.     {

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

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

  505.         CARLA_ASSERT(fSynth != nullptr);

  506. 

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

  508.             return;

  509.         if (fSynth == nullptr)

  510.             return;

  511. 

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

  513. 

  514.         // Safely disable plugin for reload

  515.         const ScopedDisabler sd(this);

  516. 

  517.         if (kData->active)

  518.             deactivate();

  519. 

  520.         clearBuffers();

  521. 

  522.         uint32_t aOuts, params, j;

  523.         aOuts  = kUses16Outs ? 32 : 2;

  524.         params = FluidSynthParametersMax;

  525. 

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

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

  528. 

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

  530.         CarlaString portName;

  531. 

  532.         // ---------------------------------------

  533.         // Audio Outputs

  534. 

  535.         if (kUses16Outs)

  536.         {

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

  538.             {

  539.                 portName.clear();

  540. 

  541.                 if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  542.                 {

  543.                     portName  = fName;

  544.                     portName += ":";

  545.                 }

  546. 

  547.                 portName += "out-";

  548. 

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

  550.                     portName += "0";

  551. 

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

  553. 

  554.                 if (j % 2 == 0)

  555.                     portName += "L";

  556.                 else

  557.                     portName += "R";

  558. 

  559.                 portName.truncate(portNameSize);

  560. 

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

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

  563.             }

  564. 

  565.             fAudio16Buffers = new float*[aOuts];

  566. 

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

  568.                 fAudio16Buffers[j] = nullptr;

  569.         }

  570.         else

  571.         {

  572.             // out-left

  573.             portName.clear();

  574. 

  575.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  576.             {

  577.                 portName  = fName;

  578.                 portName += ":";

  579.             }

  580. 

  581.             portName += "out-left";

  582.             portName.truncate(portNameSize);

  583. 

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

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

  586. 

  587.             // out-right

  588.             portName.clear();

  589. 

  590.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  591.             {

  592.                 portName  = fName;

  593.                 portName += ":";

  594.             }

  595. 

  596.             portName += "out-right";

  597.             portName.truncate(portNameSize);

  598. 

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

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

  601.         }

  602. 

  603.         // ---------------------------------------

  604.         // Event Input

  605. 

  606.         {

  607.             portName.clear();

  608. 

  609.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  610.             {

  611.                 portName  = fName;

  612.                 portName += ":";

  613.             }

  614. 

  615.             portName += "event-in";

  616.             portName.truncate(portNameSize);

  617. 

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

  619.         }

  620. 

  621.         // ---------------------------------------

  622.         // Event Output

  623. 

  624.         {

  625.             portName.clear();

  626. 

  627.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  628.             {

  629.                 portName  = fName;

  630.                 portName += ":";

  631.             }

  632. 

  633.             portName += "event-out";

  634.             portName.truncate(portNameSize);

  635. 

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

  637.         }

  638. 

  639.         // ----------------------

  640.         j = FluidSynthReverbOnOff;

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

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

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

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

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

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

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

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

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

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

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

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

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

  654. 

  655.         // ----------------------

  656.         j = FluidSynthReverbRoomSize;

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

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

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

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

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

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

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

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

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

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

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

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

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

  670. 

  671.         // ----------------------

  672.         j = FluidSynthReverbDamp;

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

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

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

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

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

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

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

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

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

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

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

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

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

  686. 

  687.         // ----------------------

  688.         j = FluidSynthReverbLevel;

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

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

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

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

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

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

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

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

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

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

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

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

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

  702. 

  703.         // ----------------------

  704.         j = FluidSynthReverbWidth;

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

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

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

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

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

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

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

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

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

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

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

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

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

  718. 

  719.         // ----------------------

  720.         j = FluidSynthChorusOnOff;

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

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

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

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

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

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

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

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

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

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

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

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

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

  734. 

  735.         // ----------------------

  736.         j = FluidSynthChorusNr;

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

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

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

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

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

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

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

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

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

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

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

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

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

  750. 

  751.         // ----------------------

  752.         j = FluidSynthChorusLevel;

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

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

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

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

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

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

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

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

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

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

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

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

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

  766. 

  767.         // ----------------------

  768.         j = FluidSynthChorusSpeedHz;

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

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

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

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

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

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

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

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

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

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

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

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

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

  782. 

  783.         // ----------------------

  784.         j = FluidSynthChorusDepthMs;

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

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

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

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

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

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

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

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

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

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

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

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

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

  798. 

  799.         // ----------------------

  800.         j = FluidSynthChorusType;

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

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

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

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

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

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

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

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

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

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

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

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

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

  814. 

  815.         // ----------------------

  816.         j = FluidSynthPolyphony;

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

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

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

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

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

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

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

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

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

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

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

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

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

  830. 

  831.         // ----------------------

  832.         j = FluidSynthInterpolation;

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

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

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

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

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

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

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

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

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

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

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

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

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

  846. 

  847.         // ----------------------

  848.         j = FluidSynthVoiceCount;

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

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

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

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

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

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

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

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

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

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

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

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

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

  862. 

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

  864. 

  865.         // plugin hints

  866.         fHints  = 0x0;

  867.         fHints |= PLUGIN_IS_SYNTH;

  868.         fHints |= PLUGIN_CAN_VOLUME;

  869.         fHints |= PLUGIN_CAN_BALANCE;

  870. 

  871.         // extra plugin hints

  872.         kData->extraHints  = 0x0;

  873.         kData->extraHints |= PLUGIN_HINT_HAS_MIDI_IN;

  874.         kData->extraHints |= PLUGIN_HINT_CAN_RUN_RACK;

  875. 

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

  877.         reloadPrograms(true);

  878. 

  879.         if (kData->active)

  880.             activate();

  881. 

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

  883.     }

  884. 

  885.     void reloadPrograms(const bool init) override

  886.     {

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

  888. 

  889.         // Delete old programs

  890.         kData->midiprog.clear();

  891. 

  892.         // Query new programs

  893.         uint32_t count = 0;

  894.         fluid_sfont_t* f_sfont;

  895.         fluid_preset_t f_preset;

  896. 

  897.         bool hasDrums = false;

  898.         uint32_t drumIndex, drumProg;

  899. 

  900.         f_sfont = fluid_synth_get_sfont_by_id(fSynth, fSynthId);

  901. 

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

  903.         f_sfont->iteration_start(f_sfont);

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

  905.             count += 1;

  906. 

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

  908.         CARLA_ASSERT(count > 0);

  909. 

  910.         if (count == 0)

  911.             return;

  912. 

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

  914. 

  915.         // Update data

  916.         uint32_t i = 0;

  917.         f_sfont->iteration_start(f_sfont);

  918. 

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

  920.         {

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

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

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

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

  925. 

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

  927.             {

  928.                 hasDrums  = true;

  929.                 drumIndex = i;

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

  931.             }

  932. 

  933.             ++i;

  934.         }

  935. 

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

  937. 

  938. #ifndef BUILD_BRIDGE

  939.         // Update OSC Names

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

  941.         {

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

  943. 

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

  945.                 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);

  946.         }

  947. #endif

  948. 

  949.         if (init)

  950.         {

  951.             fluid_synth_program_reset(fSynth);

  952. 

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

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

  955.             {

  956. #ifdef FLUIDSYNTH_VERSION_NEW_API

  957.                 fluid_synth_set_channel_type(fSynth, i, CHANNEL_TYPE_MELODIC);

  958. #endif

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

  960. 

  961.                 fCurMidiProgs[i] = 0;

  962.             }

  963. 

  964.             if (hasDrums)

  965.             {

  966. #ifdef FLUIDSYNTH_VERSION_NEW_API

  967.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_DRUM);

  968. #endif

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

  970. 

  971.                 fCurMidiProgs[9] = drumIndex;

  972.             }

  973.             else

  974.             {

  975. #ifdef FLUIDSYNTH_VERSION_NEW_API

  976.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_MELODIC);

  977. #endif

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

  979. 

  980.                 fCurMidiProgs[9] = 0;

  981.             }

  982. 

  983.             kData->midiprog.current = 0;

  984.         }

  985.         else

  986.         {

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

  988.         }

  989.     }

  990. 

  991.     // -------------------------------------------------------------------

  992.     // Plugin processing

  993. 

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

  995.     {

  996.         uint32_t i, k;

  997. 

  998.         // --------------------------------------------------------------------------------------------------------

  999.         // Check if active

  1000. 

  1001.         if (! kData->active)

  1002.         {

  1003.             // disable any output sound

  1004.             for (i=0; i < kData->audioOut.count; ++i)

  1005.                 carla_zeroFloat(outBuffer[i], frames);

  1006. 

  1007.             return;

  1008.         }

  1009. 

  1010.         // --------------------------------------------------------------------------------------------------------

  1011.         // Check if needs reset

  1012. 

  1013.         if (kData->needsReset)

  1014.         {

  1015.             if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1016.             {

  1017.                 for (int c=0; c < MAX_MIDI_CHANNELS; ++c)

  1018.                 {

  1019. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1020.                     fluid_synth_all_notes_off(fSynth, c);

  1021.                     fluid_synth_all_sounds_off(fSynth, c);

  1022. #else

  1023.                     fluid_synth_cc(fSynth, c, MIDI_CONTROL_ALL_SOUND_OFF, 0);

  1024.                     fluid_synth_cc(fSynth, c, MIDI_CONTROL_ALL_NOTES_OFF, 0);

  1025. #endif

  1026.                 }

  1027.             }

  1028.             else if (kData->ctrlChannel >= 0 && kData->ctrlChannel < MAX_MIDI_CHANNELS)

  1029.             {

  1030.                 for (k=0; k < MAX_MIDI_NOTE; ++k)

  1031.                     fluid_synth_noteoff(fSynth, kData->ctrlChannel, k);

  1032.             }

  1033. 

  1034.             kData->needsReset = false;

  1035.         }

  1036. 

  1037.         // --------------------------------------------------------------------------------------------------------

  1038.         // Event Input and Processing

  1039. 

  1040.         {

  1041.             // ----------------------------------------------------------------------------------------------------

  1042.             // MIDI Input (External)

  1043. 

  1044.             if (kData->extNotes.mutex.tryLock())

  1045.             {

  1046.                 while (! kData->extNotes.data.isEmpty())

  1047.                 {

  1048.                     const ExternalMidiNote& note(kData->extNotes.data.getFirst(true));

  1049. 

  1050.                     CARLA_ASSERT(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1051. 

  1052.                     if (note.velo > 0)

  1053.                         fluid_synth_noteon(fSynth, note.channel, note.note, note.velo);

  1054.                     else

  1055.                         fluid_synth_noteoff(fSynth,note.channel, note.note);

  1056.                 }

  1057. 

  1058.                 kData->extNotes.mutex.unlock();

  1059. 

  1060.             } // End of MIDI Input (External)

  1061. 

  1062.             // ----------------------------------------------------------------------------------------------------

  1063.             // Event Input (System)

  1064. 

  1065.             bool allNotesOffSent = false;

  1066. 

  1067.             uint32_t time, nEvents = kData->event.portIn->getEventCount();

  1068.             uint32_t timeOffset = 0;

  1069. 

  1070.             uint32_t nextBankIds[MAX_MIDI_CHANNELS] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 };

  1071. 

  1072.             if (kData->midiprog.current >= 0 && kData->midiprog.count > 0 && kData->ctrlChannel >= 0 && kData->ctrlChannel < MAX_MIDI_CHANNELS)

  1073.                 nextBankIds[kData->ctrlChannel] = kData->midiprog.data[kData->midiprog.current].bank;

  1074. 

  1075.             for (i=0; i < nEvents; ++i)

  1076.             {

  1077.                 const EngineEvent& event(kData->event.portIn->getEvent(i));

  1078. 

  1079.                 time = event.time;

  1080. 

  1081.                 if (time >= frames)

  1082.                     continue;

  1083. 

  1084.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  1085. 

  1086.                 if (time > timeOffset)

  1087.                 {

  1088.                     if (processSingle(outBuffer, time - timeOffset, timeOffset))

  1089.                     {

  1090.                         timeOffset = time;

  1091. 

  1092.                         if (kData->midiprog.current >= 0 && kData->midiprog.count > 0 && kData->ctrlChannel >= 0 && kData->ctrlChannel < 16)

  1093.                             nextBankIds[kData->ctrlChannel] = kData->midiprog.data[kData->midiprog.current].bank;

  1094.                     }

  1095.                 }

  1096. 

  1097.                 // Control change

  1098.                 switch (event.type)

  1099.                 {

  1100.                 case kEngineEventTypeNull:

  1101.                     break;

  1102. 

  1103.                 case kEngineEventTypeControl:

  1104.                 {

  1105.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1106. 

  1107.                     switch (ctrlEvent.type)

  1108.                     {

  1109.                     case kEngineControlEventTypeNull:

  1110.                         break;

  1111. 

  1112.                     case kEngineControlEventTypeParameter:

  1113.                     {

  1114. #ifndef BUILD_BRIDGE

  1115.                         // Control backend stuff

  1116.                         if (event.channel == kData->ctrlChannel)

  1117.                         {

  1118.                             float value;

  1119. 

  1120.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (fHints & PLUGIN_CAN_DRYWET) > 0)

  1121.                             {

  1122.                                 value = ctrlEvent.value;

  1123.                                 setDryWet(value, false, false);

  1124.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1125.                             }

  1126. 

  1127.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (fHints & PLUGIN_CAN_VOLUME) > 0)

  1128.                             {

  1129.                                 value = ctrlEvent.value*127.0f/100.0f;

  1130.                                 setVolume(value, false, false);

  1131.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1132.                             }

  1133. 

  1134.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (fHints & PLUGIN_CAN_BALANCE) > 0)

  1135.                             {

  1136.                                 float left, right;

  1137.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1138. 

  1139.                                 if (value < 0.0f)

  1140.                                 {

  1141.                                     left  = -1.0f;

  1142.                                     right = (value*2.0f)+1.0f;

  1143.                                 }

  1144.                                 else if (value > 0.0f)

  1145.                                 {

  1146.                                     left  = (value*2.0f)-1.0f;

  1147.                                     right = 1.0f;

  1148.                                 }

  1149.                                 else

  1150.                                 {

  1151.                                     left  = -1.0f;

  1152.                                     right = 1.0f;

  1153.                                 }

  1154. 

  1155.                                 setBalanceLeft(left, false, false);

  1156.                                 setBalanceRight(right, false, false);

  1157.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1158.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  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.                         if ((fOptions & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param <= 0x5F)

  1194.                         {

  1195.                             fluid_synth_cc(fSynth, event.channel, ctrlEvent.param, ctrlEvent.value*127.0f);

  1196.                         }

  1197. 

  1198.                         break;

  1199.                     }

  1200. 

  1201.                     case kEngineControlEventTypeMidiBank:

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

  1203.                             nextBankIds[event.channel] = ctrlEvent.param;

  1204.                         break;

  1205. 

  1206.                     case kEngineControlEventTypeMidiProgram:

  1207.                         if (event.channel < MAX_MIDI_CHANNELS && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1208.                         {

  1209.                             const uint32_t bankId(nextBankIds[event.channel]);

  1210.                             const uint32_t progId(ctrlEvent.param);

  1211. 

  1212.                             for (k=0; k < kData->midiprog.count; ++k)

  1213.                             {

  1214.                                 if (kData->midiprog.data[k].bank == bankId && kData->midiprog.data[k].program == progId)

  1215.                                 {

  1216.                                     fluid_synth_program_select(fSynth, event.channel, fSynthId, bankId, progId);

  1217.                                     fCurMidiProgs[event.channel] = k;

  1218. 

  1219.                                     if (event.channel == kData->ctrlChannel)

  1220.                                         postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0f);

  1221. 

  1222.                                     break;

  1223.                                 }

  1224.                             }

  1225.                         }

  1226.                         break;

  1227. 

  1228.                     case kEngineControlEventTypeAllSoundOff:

  1229.                         if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1230.                         {

  1231. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1232.                             fluid_synth_all_sounds_off(fSynth, event.channel);

  1233. #else

  1234.                             fluid_synth_cc(fSynth, event.channel, MIDI_CONTROL_ALL_SOUND_OFF, 0);

  1235. #endif

  1236.                         }

  1237.                         break;

  1238. 

  1239.                     case kEngineControlEventTypeAllNotesOff:

  1240.                         if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1241.                         {

  1242.                             if (event.channel == kData->ctrlChannel && ! allNotesOffSent)

  1243.                             {

  1244.                                 allNotesOffSent = true;

  1245.                                 sendMidiAllNotesOffToCallback();

  1246.                             }

  1247. 

  1248. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1249.                             fluid_synth_all_notes_off(fSynth, event.channel);

  1250. #else

  1251.                             fluid_synth_cc(fSynth, event.channel, MIDI_CONTROL_ALL_NOTES_OFF, 0);

  1252. #endif

  1253.                         }

  1254.                         break;

  1255.                     }

  1256. 

  1257.                     break;

  1258.                 }

  1259. 

  1260.                 case kEngineEventTypeMidi:

  1261.                 {

  1262.                     const EngineMidiEvent& midiEvent(event.midi);

  1263. 

  1264.                     uint8_t status  = MIDI_GET_STATUS_FROM_DATA(midiEvent.data);

  1265.                     uint8_t channel = event.channel;

  1266. 

  1267.                     // Fix bad note-off

  1268.                     if (MIDI_IS_STATUS_NOTE_ON(status) && midiEvent.data[2] == 0)

  1269.                         status -= 0x10;

  1270. 

  1271.                     if (MIDI_IS_STATUS_NOTE_OFF(status))

  1272.                     {

  1273.                         const uint8_t note = midiEvent.data[1];

  1274. 

  1275.                         fluid_synth_noteoff(fSynth, channel, note);

  1276. 

  1277.                         postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0f);

  1278.                     }

  1279.                     else if (MIDI_IS_STATUS_NOTE_ON(status))

  1280.                     {

  1281.                         const uint8_t note = midiEvent.data[1];

  1282.                         const uint8_t velo = midiEvent.data[2];

  1283. 

  1284.                         fluid_synth_noteon(fSynth, channel, note, velo);

  1285. 

  1286.                         postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1287.                     }

  1288.                     else if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) != 0)

  1289.                     {

  1290.                         //const uint8_t note     = midiEvent.data[1];

  1291.                         //const uint8_t pressure = midiEvent.data[2];

  1292. 

  1293.                         // TODO, not in fluidsynth API

  1294.                     }

  1295.                     else if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (fOptions & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0)

  1296.                     {

  1297.                         const uint8_t control = midiEvent.data[1];

  1298.                         const uint8_t value   = midiEvent.data[2];

  1299. 

  1300.                         fluid_synth_cc(fSynth, channel, control, value);

  1301.                     }

  1302.                     else if (MIDI_IS_STATUS_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) != 0)

  1303.                     {

  1304.                         const uint8_t pressure = midiEvent.data[1];

  1305. 

  1306.                         fluid_synth_channel_pressure(fSynth, channel, pressure);;

  1307.                     }

  1308.                     else if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (fOptions & PLUGIN_OPTION_SEND_PITCHBEND) != 0)

  1309.                     {

  1310.                         const uint8_t lsb = midiEvent.data[1];

  1311.                         const uint8_t msb = midiEvent.data[2];

  1312. 

  1313.                         fluid_synth_pitch_bend(fSynth, channel, (msb << 7) | lsb);

  1314.                     }

  1315. 

  1316.                     break;

  1317.                 }

  1318.                 }

  1319.             }

  1320. 

  1321.             kData->postRtEvents.trySplice();

  1322. 

  1323.             if (frames > timeOffset)

  1324.                 processSingle(outBuffer, frames - timeOffset, timeOffset);

  1325. 

  1326.         } // End of Event Input and Processing

  1327. 

  1328.         CARLA_PROCESS_CONTINUE_CHECK;

  1329. 

  1330.         // --------------------------------------------------------------------------------------------------------

  1331.         // Control Output

  1332. 

  1333.         {

  1334.             k = FluidSynthVoiceCount;

  1335.             fParamBuffers[k] = fluid_synth_get_active_voice_count(fSynth);

  1336.             kData->param.ranges[k].fixValue(fParamBuffers[k]);

  1337. 

  1338.             if (kData->param.data[k].midiCC > 0)

  1339.             {

  1340.                 float value(kData->param.ranges[k].normalizeValue(fParamBuffers[k]));

  1341.                 kData->event.portOut->writeControlEvent(0, kData->param.data[k].midiChannel, kEngineControlEventTypeParameter, kData->param.data[k].midiCC, value);

  1342.             }

  1343. 

  1344.         } // End of Control Output

  1345.     }

  1346. 

  1347.     bool processSingle(float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1348.     {

  1349.         CARLA_ASSERT(outBuffer != nullptr);

  1350.         CARLA_ASSERT(frames > 0);

  1351. 

  1352.         if (outBuffer == nullptr)

  1353.             return false;

  1354.         if (frames == 0)

  1355.             return false;

  1356. 

  1357.         uint32_t i, k;

  1358. 

  1359.         // --------------------------------------------------------------------------------------------------------

  1360.         // Try lock, silence otherwise

  1361. 

  1362.         if (kData->engine->isOffline())

  1363.         {

  1364.             kData->singleMutex.lock();

  1365.         }

  1366.         else if (! kData->singleMutex.tryLock())

  1367.         {

  1368.             for (i=0; i < kData->audioOut.count; ++i)

  1369.             {

  1370.                 for (k=0; k < frames; ++k)

  1371.                     outBuffer[i][k+timeOffset] = 0.0f;

  1372.             }

  1373. 

  1374.             return false;

  1375.         }

  1376. 

  1377.         // --------------------------------------------------------------------------------------------------------

  1378.         // Fill plugin buffers and Run plugin

  1379. 

  1380.         if (kUses16Outs)

  1381.         {

  1382.             for (i=0; i < kData->audioOut.count; ++i)

  1383.                 carla_zeroFloat(fAudio16Buffers[i], frames);

  1384. 

  1385.             fluid_synth_process(fSynth, frames, 0, nullptr, kData->audioOut.count, fAudio16Buffers);

  1386.         }

  1387.         else

  1388.             fluid_synth_write_float(fSynth, frames, outBuffer[0] + timeOffset, 0, 1, outBuffer[1] + timeOffset, 0, 1);

  1389. 

  1390. #ifndef BUILD_BRIDGE

  1391.         // --------------------------------------------------------------------------------------------------------

  1392.         // Post-processing (volume and balance)

  1393. 

  1394.         {

  1395.             // note - balance not possible with kUses16Outs, so we can safely skip fAudioOutBuffers

  1396.             const bool doVolume  = (fHints & PLUGIN_CAN_VOLUME) > 0 && kData->postProc.volume != 1.0f;

  1397.             const bool doBalance = (fHints & PLUGIN_CAN_BALANCE) > 0 && (kData->postProc.balanceLeft != -1.0f || kData->postProc.balanceRight != 1.0f);

  1398. 

  1399.             float oldBufLeft[doBalance ? frames : 1];

  1400. 

  1401.             for (i=0; i < kData->audioOut.count; ++i)

  1402.             {

  1403.                 // Balance

  1404.                 if (doBalance)

  1405.                 {

  1406.                     if (i % 2 == 0)

  1407.                         carla_copyFloat(oldBufLeft, outBuffer[i]+timeOffset, frames);

  1408. 

  1409.                     float balRangeL = (kData->postProc.balanceLeft  + 1.0f)/2.0f;

  1410.                     float balRangeR = (kData->postProc.balanceRight + 1.0f)/2.0f;

  1411. 

  1412.                     for (k=0; k < frames; ++k)

  1413.                     {

  1414.                         if (i % 2 == 0)

  1415.                         {

  1416.                             // left

  1417.                             outBuffer[i][k+timeOffset]  = oldBufLeft[k]                * (1.0f - balRangeL);

  1418.                             outBuffer[i][k+timeOffset] += outBuffer[i+1][k+timeOffset] * (1.0f - balRangeR);

  1419.                         }

  1420.                         else

  1421.                         {

  1422.                             // right

  1423.                             outBuffer[i][k+timeOffset]  = outBuffer[i][k+timeOffset] * balRangeR;

  1424.                             outBuffer[i][k+timeOffset] += oldBufLeft[k]              * balRangeL;

  1425.                         }

  1426.                     }

  1427.                 }

  1428. 

  1429.                 // Volume

  1430.                 if (kUses16Outs)

  1431.                 {

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

  1433.                         outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k] * kData->postProc.volume;

  1434.                 }

  1435.                 else if (doVolume)

  1436.                 {

  1437.                     for (k=0; k < frames; ++k)

  1438.                         outBuffer[i][k+timeOffset] *= kData->postProc.volume;

  1439.                 }

  1440.             }

  1441. 

  1442.         } // End of Post-processing

  1443. #else

  1444.         if (kUses16Outs)

  1445.         {

  1446.             for (i=0; i < kData->audioOut.count; ++i)

  1447.             {

  1448.                 for (k=0; k < frames; ++k)

  1449.                     outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k];

  1450.             }

  1451.         }

  1452. #endif

  1453. 

  1454.         // --------------------------------------------------------------------------------------------------------

  1455. 

  1456.         kData->singleMutex.unlock();

  1457.         return true;

  1458.     }

  1459. 

  1460.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1461.     {

  1462.         if (! kUses16Outs)

  1463.             return;

  1464. 

  1465.         for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1466.         {

  1467.             if (fAudio16Buffers[i] != nullptr)

  1468.                 delete[] fAudio16Buffers[i];

  1469.             fAudio16Buffers[i] = new float[newBufferSize];

  1470.         }

  1471.     }

  1472. 

  1473.     // -------------------------------------------------------------------

  1474.     // Plugin buffers

  1475. 

  1476.     void clearBuffers() override

  1477.     {

  1478.         carla_debug("FluidSynthPlugin::clearBuffers() - start");

  1479. 

  1480.         if (fAudio16Buffers != nullptr)

  1481.         {

  1482.             for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1483.             {

  1484.                 if (fAudio16Buffers[i] != nullptr)

  1485.                 {

  1486.                     delete[] fAudio16Buffers[i];

  1487.                     fAudio16Buffers[i] = nullptr;

  1488.                 }

  1489.             }

  1490. 

  1491.             delete[] fAudio16Buffers;

  1492.             fAudio16Buffers = nullptr;

  1493.         }

  1494. 

  1495.         CarlaPlugin::clearBuffers();

  1496. 

  1497.         carla_debug("FluidSynthPlugin::clearBuffers() - end");

  1498.     }

  1499. 

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

  1501. 

  1502.     const void* getExtraStuff() override

  1503.     {

  1504.         return kUses16Outs ? (const void*)0x1 : nullptr;

  1505.     }

  1506. 

  1507.     bool init(const char* const filename, const char* const name, const char* const label)

  1508.     {

  1509.         CARLA_ASSERT(fSynth != nullptr);

  1510.         CARLA_ASSERT(filename != nullptr);

  1511.         CARLA_ASSERT(label != nullptr);

  1512. 

  1513.         // ---------------------------------------------------------------

  1514.         // first checks

  1515. 

  1516.         if (kData->engine == nullptr)

  1517.         {

  1518.             return false;

  1519.         }

  1520. 

  1521.         if (kData->client != nullptr)

  1522.         {

  1523.             kData->engine->setLastError("Plugin client is already registered");

  1524.             return false;

  1525.         }

  1526. 

  1527.         if (fSynth == nullptr)

  1528.         {

  1529.             kData->engine->setLastError("null synth");

  1530.             return false;

  1531.         }

  1532. 

  1533.         if (filename == nullptr)

  1534.         {

  1535.             kData->engine->setLastError("null filename");

  1536.             return false;

  1537.         }

  1538. 

  1539.         if (label == nullptr)

  1540.         {

  1541.             kData->engine->setLastError("null label");

  1542.             return false;

  1543.         }

  1544. 

  1545.         // ---------------------------------------------------------------

  1546.         // open soundfont

  1547. 

  1548.         fSynthId = fluid_synth_sfload(fSynth, filename, 0);

  1549. 

  1550.         if (fSynthId < 0)

  1551.         {

  1552.             kData->engine->setLastError("Failed to load SoundFont file");

  1553.             return false;

  1554.         }

  1555. 

  1556.         // ---------------------------------------------------------------

  1557.         // get info

  1558. 

  1559.         fFilename = filename;

  1560.         fLabel    = label;

  1561. 

  1562.         if (name != nullptr)

  1563.             fName = kData->engine->getUniquePluginName(name);

  1564.         else

  1565.             fName = kData->engine->getUniquePluginName(label);

  1566. 

  1567.         // ---------------------------------------------------------------

  1568.         // register client

  1569. 

  1570.         kData->client = kData->engine->addClient(this);

  1571. 

  1572.         if (kData->client == nullptr || ! kData->client->isOk())

  1573.         {

  1574.             kData->engine->setLastError("Failed to register plugin client");

  1575.             return false;

  1576.         }

  1577. 

  1578.         // ---------------------------------------------------------------

  1579.         // load plugin settings

  1580. 

  1581.         {

  1582.             // set default options

  1583.             fOptions = 0x0;

  1584. 

  1585.             fOptions |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1586.             fOptions |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1587.             fOptions |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  1588.             fOptions |= PLUGIN_OPTION_SEND_PITCHBEND;

  1589.             fOptions |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1590. 

  1591.             // load settings

  1592.             kData->idStr  = "SF2/";

  1593.             kData->idStr += label;

  1594.             fOptions = kData->loadSettings(fOptions, availableOptions());

  1595.         }

  1596. 

  1597.         return true;

  1598.     }

  1599. 

  1600. private:

  1601.     enum FluidSynthInputParameters {

  1602.         FluidSynthReverbOnOff    = 0,

  1603.         FluidSynthReverbRoomSize = 1,

  1604.         FluidSynthReverbDamp     = 2,

  1605.         FluidSynthReverbLevel    = 3,

  1606.         FluidSynthReverbWidth    = 4,

  1607.         FluidSynthChorusOnOff    = 5,

  1608.         FluidSynthChorusNr       = 6,

  1609.         FluidSynthChorusLevel    = 7,

  1610.         FluidSynthChorusSpeedHz  = 8,

  1611.         FluidSynthChorusDepthMs  = 9,

  1612.         FluidSynthChorusType     = 10,

  1613.         FluidSynthPolyphony      = 11,

  1614.         FluidSynthInterpolation  = 12,

  1615.         FluidSynthVoiceCount     = 13,

  1616.         FluidSynthParametersMax  = 14

  1617.     };

  1618. 

  1619.     const bool kUses16Outs;

  1620. 

  1621.     CarlaString fLabel;

  1622. 

  1623.     fluid_settings_t* fSettings;

  1624.     fluid_synth_t* fSynth;

  1625.     int fSynthId;

  1626. 

  1627.     float** fAudio16Buffers;

  1628.     float   fParamBuffers[FluidSynthParametersMax];

  1629. 

  1630.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  1631. 

  1632.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(FluidSynthPlugin)

  1633. };

  1634. 

  1635. CARLA_BACKEND_END_NAMESPACE

  1636. 

  1637. #else // WANT_FLUIDSYNTH

  1638. # warning fluidsynth not available (no SF2 support)

  1639. #endif

  1640. 

  1641. CARLA_BACKEND_START_NAMESPACE

  1642. 

  1643. CarlaPlugin* CarlaPlugin::newSF2(const Initializer& init, const bool use16Outs)

  1644. {

  1645.     carla_debug("CarlaPlugin::newSF2({%p, \"%s\", \"%s\", \"%s\"}, %s)", init.engine, init.filename, init.name, init.label, bool2str(use16Outs));

  1646. 

  1647. #ifdef WANT_FLUIDSYNTH

  1648.     if (! fluid_is_soundfont(init.filename))

  1649.     {

  1650.         init.engine->setLastError("Requested file is not a valid SoundFont");

  1651.         return nullptr;

  1652.     }

  1653. 

  1654.     if (init.engine->getProccessMode() == PROCESS_MODE_CONTINUOUS_RACK && use16Outs)

  1655.     {

  1656.         init.engine->setLastError("Carla's rack mode can only work with Stereo modules, please choose the 2-channel only SoundFont version");

  1657.         return nullptr;

  1658.     }

  1659. 

  1660.     FluidSynthPlugin* const plugin(new FluidSynthPlugin(init.engine, init.id,  use16Outs));

  1661. 

  1662.     if (! plugin->init(init.filename, init.name, init.label))

  1663.     {

  1664.         delete plugin;

  1665.         return nullptr;

  1666.     }

  1667. 

  1668.     plugin->reload();

  1669. 

  1670.     return plugin;

  1671. #else

  1672.     init.engine->setLastError("fluidsynth support not available");

  1673.     return nullptr;

  1674. 

  1675.     // unused

  1676.     (void)use16Outs;

  1677. #endif

  1678. }

  1679. 

  1680. CARLA_BACKEND_END_NAMESPACE