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Carla/source/backend/plugin/CarlaPluginFluidSynth.cpp

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  1. /*

  2.  * Carla FluidSynth Plugin

  3.  * Copyright (C) 2011-2019 Filipe Coelho <falktx@falktx.com>

  4.  *

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

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

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

  8.  * the License, or any later version.

  9.  *

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

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

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

  13.  * GNU General Public License for more details.

  14.  *

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

  16.  */

  17. 

  18. #include "CarlaPluginInternal.hpp"

  19. #include "CarlaEngine.hpp"

  20. 

  21. #ifdef HAVE_FLUIDSYNTH

  22. 

  23. #include "CarlaMathUtils.hpp"

  24. 

  25. #include "water/text/StringArray.h"

  26. 

  27. #include <fluidsynth.h>

  28. 

  29. #define FLUID_DEFAULT_POLYPHONY 64

  30. 

  31. using water::String;

  32. using water::StringArray;

  33. 

  34. CARLA_BACKEND_START_NAMESPACE

  35. 

  36. // -------------------------------------------------------------------------------------------------------------------

  37. // Fallback data

  38. 

  39. static const ExternalMidiNote kExternalMidiNoteFallback = { -1, 0, 0 };

  40. 

  41. // -------------------------------------------------------------------------------------------------------------------

  42. 

  43. class CarlaPluginFluidSynth : public CarlaPlugin

  44. {

  45. public:

  46.     CarlaPluginFluidSynth(CarlaEngine* const engine, const uint id, const bool use16Outs)

  47.         : CarlaPlugin(engine, id),

  48.           kUse16Outs(use16Outs),

  49.           fSettings(nullptr),

  50.           fSynth(nullptr),

  51.           fSynthId(0),

  52.           fAudio16Buffers(nullptr),

  53.           fLabel(nullptr)

  54.     {

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

  56. 

  57.         carla_zeroFloats(fParamBuffers, FluidSynthParametersMax);

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

  59. 

  60.         // create settings

  61.         fSettings = new_fluid_settings();

  62.         CARLA_SAFE_ASSERT_RETURN(fSettings != nullptr,);

  63. 

  64.         // define settings

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

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

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

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

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

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

  71. 

  72.         // create synth

  73.         fSynth = new_fluid_synth(fSettings);

  74.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

  75. 

  76.         initializeFluidDefaultsIfNeeded();

  77. 

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

  79. 

  80.         // set default values

  81.         fluid_synth_set_reverb_on(fSynth, 1);

  82.         fluid_synth_set_reverb(fSynth,

  83.                                sFluidDefaults[FluidSynthReverbRoomSize],

  84.                                sFluidDefaults[FluidSynthReverbDamp],

  85.                                sFluidDefaults[FluidSynthReverbWidth],

  86.                                sFluidDefaults[FluidSynthReverbLevel]);

  87. 

  88.         fluid_synth_set_chorus_on(fSynth, 1);

  89.         fluid_synth_set_chorus(fSynth,

  90.                                static_cast<int>(sFluidDefaults[FluidSynthChorusNr] + 0.5f),

  91.                                sFluidDefaults[FluidSynthChorusLevel],

  92.                                sFluidDefaults[FluidSynthChorusSpeedHz],

  93.                                sFluidDefaults[FluidSynthChorusDepthMs],

  94.                                static_cast<int>(sFluidDefaults[FluidSynthChorusType] + 0.5f));

  95. 

  96.         fluid_synth_set_polyphony(fSynth, FLUID_DEFAULT_POLYPHONY);

  97.         fluid_synth_set_gain(fSynth, 1.0f);

  98. 

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

  100.             fluid_synth_set_interp_method(fSynth, i, static_cast<int>(sFluidDefaults[FluidSynthInterpolation] + 0.5f));

  101.     }

  102. 

  103.     ~CarlaPluginFluidSynth() override

  104.     {

  105.         carla_debug("CarlaPluginFluidSynth::~CarlaPluginFluidSynth()");

  106. 

  107.         pData->singleMutex.lock();

  108.         pData->masterMutex.lock();

  109. 

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

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

  112. 

  113.         if (pData->active)

  114.         {

  115.             deactivate();

  116.             pData->active = false;

  117.         }

  118. 

  119.         if (fSynth != nullptr)

  120.         {

  121.             delete_fluid_synth(fSynth);

  122.             fSynth = nullptr;

  123.         }

  124. 

  125.         if (fSettings != nullptr)

  126.         {

  127.             delete_fluid_settings(fSettings);

  128.             fSettings = nullptr;

  129.         }

  130. 

  131.         if (fLabel != nullptr)

  132.         {

  133.             delete[] fLabel;

  134.             fLabel = nullptr;

  135.         }

  136. 

  137.         clearBuffers();

  138.     }

  139. 

  140.     // -------------------------------------------------------------------

  141.     // Information (base)

  142. 

  143.     PluginType getType() const noexcept override

  144.     {

  145.         return PLUGIN_SF2;

  146.     }

  147. 

  148.     PluginCategory getCategory() const noexcept override

  149.     {

  150.         return PLUGIN_CATEGORY_SYNTH;

  151.     }

  152. 

  153.     // -------------------------------------------------------------------

  154.     // Information (count)

  155. 

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

  157.     {

  158.         switch (parameterId)

  159.         {

  160.         case FluidSynthChorusType:

  161.             return 2;

  162.         case FluidSynthInterpolation:

  163.             return 4;

  164.         default:

  165.             return 0;

  166.         }

  167.     }

  168. 

  169.     // -------------------------------------------------------------------

  170.     // Information (current data)

  171. 

  172.     // nothing

  173. 

  174.     // -------------------------------------------------------------------

  175.     // Information (per-plugin data)

  176. 

  177.     uint getOptionsAvailable() const noexcept override

  178.     {

  179.         uint options = 0x0;

  180. 

  181.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  182.         options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  183.         options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  184.         options |= PLUGIN_OPTION_SEND_PITCHBEND;

  185.         options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  186. 

  187.         return options;

  188.     }

  189. 

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

  191.     {

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

  193. 

  194.         return fParamBuffers[parameterId];

  195.     }

  196. 

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

  198.     {

  199.         switch (parameterId)

  200.         {

  201.         case FluidSynthChorusType:

  202.             switch (scalePointId)

  203.             {

  204.             case 0:

  205.                 return FLUID_CHORUS_MOD_SINE;

  206.             case 1:

  207.                 return FLUID_CHORUS_MOD_TRIANGLE;

  208.             default:

  209.                 return sFluidDefaults[FluidSynthChorusType];

  210.             }

  211.         case FluidSynthInterpolation:

  212.             switch (scalePointId)

  213.             {

  214.             case 0:

  215.                 return FLUID_INTERP_NONE;

  216.             case 1:

  217.                 return FLUID_INTERP_LINEAR;

  218.             case 2:

  219.                 return FLUID_INTERP_4THORDER;

  220.             case 3:

  221.                 return FLUID_INTERP_7THORDER;

  222.             default:

  223.                 return sFluidDefaults[FluidSynthInterpolation];

  224.             }

  225.         default:

  226.             return 0.0f;

  227.         }

  228.     }

  229. 

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

  231.     {

  232.         if (fLabel != nullptr)

  233.         {

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

  235.             return;

  236.         }

  237. 

  238.         CarlaPlugin::getLabel(strBuf);

  239.     }

  240. 

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

  242.     {

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

  244.     }

  245. 

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

  247.     {

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

  249.     }

  250. 

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

  252.     {

  253.         getLabel(strBuf);

  254.     }

  255. 

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

  257.     {

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

  259. 

  260.         switch (parameterId)

  261.         {

  262.         case FluidSynthReverbOnOff:

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

  264.             return;

  265.         case FluidSynthReverbRoomSize:

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

  267.             return;

  268.         case FluidSynthReverbDamp:

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

  270.             return;

  271.         case FluidSynthReverbLevel:

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

  273.             return;

  274.         case FluidSynthReverbWidth:

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

  276.             return;

  277.         case FluidSynthChorusOnOff:

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

  279.             return;

  280.         case FluidSynthChorusNr:

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

  282.             return;

  283.         case FluidSynthChorusLevel:

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

  285.             return;

  286.         case FluidSynthChorusSpeedHz:

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

  288.             return;

  289.         case FluidSynthChorusDepthMs:

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

  291.             return;

  292.         case FluidSynthChorusType:

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

  294.             return;

  295.         case FluidSynthPolyphony:

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

  297.             return;

  298.         case FluidSynthInterpolation:

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

  300.             return;

  301.         case FluidSynthVoiceCount:

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

  303.             return;

  304.         }

  305. 

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

  307.     }

  308. 

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

  310.     {

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

  312. 

  313.         switch (parameterId)

  314.         {

  315.         case FluidSynthChorusSpeedHz:

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

  317.             return;

  318.         case FluidSynthChorusDepthMs:

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

  320.             return;

  321.         }

  322. 

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

  324.     }

  325. 

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

  327.     {

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

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

  330. 

  331.         switch (parameterId)

  332.         {

  333.         case FluidSynthChorusType:

  334.             switch (scalePointId)

  335.             {

  336.             case 0:

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

  338.                 return;

  339.             case 1:

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

  341.                 return;

  342.             }

  343.             break;

  344.         case FluidSynthInterpolation:

  345.             switch (scalePointId)

  346.             {

  347.             case 0:

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

  349.                 return;

  350.             case 1:

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

  352.                 return;

  353.             case 2:

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

  355.                 return;

  356.             case 3:

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

  358.                 return;

  359.             }

  360.             break;

  361.         }

  362. 

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

  364.     }

  365. 

  366.     // -------------------------------------------------------------------

  367.     // Set data (state)

  368. 

  369.     void prepareForSave() override

  370.     {

  371.         char strBuf[STR_MAX+1];

  372.         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],

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

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

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

  376. 

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

  378.     }

  379. 

  380.     // -------------------------------------------------------------------

  381.     // Set data (internal stuff)

  382. 

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

  384.     {

  385.         if (channel >= 0 && channel < MAX_MIDI_CHANNELS)

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

  387. 

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

  389.     }

  390. 

  391.     // -------------------------------------------------------------------

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

  393. 

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

  395.     {

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

  397.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback,);

  398. 

  399.         float fixedValue;

  400. 

  401.         {

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

  403.             fixedValue = setParameterValueInFluidSynth(parameterId, value);

  404. 

  405.         }

  406. 

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

  408.     }

  409. 

  410.     void setParameterValueRT(const uint32_t parameterId, const float value) noexcept override

  411.     {

  412.         const float fixedValue = setParameterValueInFluidSynth(parameterId, value);

  413. 

  414.         CarlaPlugin::setParameterValueRT(parameterId, fixedValue);

  415.     }

  416. 

  417.     float setParameterValueInFluidSynth(const uint32_t parameterId, const float value) noexcept

  418.     {

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

  420. 

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

  422.         fParamBuffers[parameterId] = fixedValue;

  423. 

  424.         switch (parameterId)

  425.         {

  426.         case FluidSynthReverbOnOff:

  427.             try {

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

  429.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_reverb_on")

  430.             break;

  431. 

  432.         case FluidSynthReverbRoomSize:

  433.         case FluidSynthReverbDamp:

  434.         case FluidSynthReverbLevel:

  435.         case FluidSynthReverbWidth:

  436.             try {

  437.                 fluid_synth_set_reverb(fSynth,

  438.                                        fParamBuffers[FluidSynthReverbRoomSize],

  439.                                        fParamBuffers[FluidSynthReverbDamp],

  440.                                        fParamBuffers[FluidSynthReverbWidth],

  441.                                        fParamBuffers[FluidSynthReverbLevel]);

  442.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_reverb")

  443.             break;

  444. 

  445.         case FluidSynthChorusOnOff:

  446.             try {

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

  448.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_chorus_on")

  449.             break;

  450. 

  451.         case FluidSynthChorusNr:

  452.         case FluidSynthChorusLevel:

  453.         case FluidSynthChorusSpeedHz:

  454.         case FluidSynthChorusDepthMs:

  455.         case FluidSynthChorusType:

  456.             try {

  457.                 fluid_synth_set_chorus(fSynth,

  458.                                        (int)fParamBuffers[FluidSynthChorusNr],

  459.                                        fParamBuffers[FluidSynthChorusLevel],

  460.                                        fParamBuffers[FluidSynthChorusSpeedHz],

  461.                                        fParamBuffers[FluidSynthChorusDepthMs],

  462.                                        (int)fParamBuffers[FluidSynthChorusType]);

  463.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_chorus")

  464.             break;

  465. 

  466.         case FluidSynthPolyphony:

  467.             try {

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

  469.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_polyphony")

  470.             break;

  471. 

  472.         case FluidSynthInterpolation:

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

  474.             {

  475.                 try {

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

  477.                 } CARLA_SAFE_EXCEPTION_BREAK("fluid_synth_set_interp_method")

  478.             }

  479.             break;

  480. 

  481.         default:

  482.             break;

  483.         }

  484. 

  485.         return fixedValue;

  486.     }

  487. 

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

  489.     {

  490.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

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

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

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

  495. 

  496.         if (std::strcmp(type, CUSTOM_DATA_TYPE_PROPERTY) == 0)

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

  498. 

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

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

  501. 

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

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

  504. 

  505.         StringArray midiProgramList(StringArray::fromTokens(value, ":", ""));

  506. 

  507.         if (midiProgramList.size() == MAX_MIDI_CHANNELS)

  508.         {

  509.             uint8_t channel = 0;

  510.             for (String *it=midiProgramList.begin(), *end=midiProgramList.end(); it != end; ++it)

  511.             {

  512.                 const int index(it->getIntValue());

  513. 

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

  515.                 {

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

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

  518. 

  519.                     fluid_synth_program_select(fSynth, channel, fSynthId, bank, program);

  520.                     fCurMidiProgs[channel] = index;

  521. 

  522.                     if (pData->ctrlChannel == static_cast<int32_t>(channel))

  523.                     {

  524.                         pData->midiprog.current = index;

  525.                         pData->engine->callback(true, true,

  526.                                                 ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED,

  527.                                                 pData->id,

  528.                                                 index,

  529.                                                 0, 0, 0.0f, nullptr);

  530.                     }

  531.                 }

  532. 

  533.                 ++channel;

  534.             }

  535.             CARLA_SAFE_ASSERT(channel == MAX_MIDI_CHANNELS);

  536.         }

  537. 

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

  539.     }

  540. 

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

  542.     {

  543.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

  545.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback || doingInit,);

  546. 

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

  548.         {

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

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

  551. 

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

  553. 

  554.             try {

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

  556.             } CARLA_SAFE_EXCEPTION("fluid_synth_program_select")

  557. 

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

  559.         }

  560. 

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

  562.     }

  563. 

  564.     // FIXME: this is never used

  565.     void setMidiProgramRT(const uint32_t uindex) noexcept override

  566.     {

  567.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

  568.         CARLA_SAFE_ASSERT_RETURN(uindex < pData->midiprog.count,);

  569. 

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

  571.         {

  572.             const uint32_t bank    = pData->midiprog.data[uindex].bank;

  573.             const uint32_t program = pData->midiprog.data[uindex].program;

  574. 

  575.             try {

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

  577.             } CARLA_SAFE_EXCEPTION("fluid_synth_program_select")

  578. 

  579.             fCurMidiProgs[pData->ctrlChannel] = static_cast<int32_t>(uindex);

  580.         }

  581. 

  582.         CarlaPlugin::setMidiProgramRT(uindex);

  583.     }

  584. 

  585.     // -------------------------------------------------------------------

  586.     // Set ui stuff

  587. 

  588.     // nothing

  589. 

  590.     // -------------------------------------------------------------------

  591.     // Plugin state

  592. 

  593.     void reload() override

  594.     {

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

  596.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

  597.         carla_debug("CarlaPluginFluidSynth::reload() - start");

  598. 

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

  600. 

  601.         // Safely disable plugin for reload

  602.         const ScopedDisabler sd(this);

  603. 

  604.         if (pData->active)

  605.             deactivate();

  606. 

  607.         clearBuffers();

  608. 

  609.         uint32_t aOuts, params;

  610.         aOuts  = kUse16Outs ? 32 : 2;

  611.         params = FluidSynthParametersMax;

  612. 

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

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

  615. 

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

  617.         CarlaString portName;

  618. 

  619.         // ---------------------------------------

  620.         // Audio Outputs

  621. 

  622.         if (kUse16Outs)

  623.         {

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

  625.             {

  626.                 portName.clear();

  627. 

  628.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  629.                 {

  630.                     portName  = pData->name;

  631.                     portName += ":";

  632.                 }

  633. 

  634.                 portName += "out-";

  635. 

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

  637.                     portName += "0";

  638. 

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

  640. 

  641.                 if (i % 2 == 0)

  642.                     portName += "L";

  643.                 else

  644.                     portName += "R";

  645. 

  646.                 portName.truncate(portNameSize);

  647. 

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

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

  650.             }

  651. 

  652.             fAudio16Buffers = new float*[aOuts];

  653. 

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

  655.                 fAudio16Buffers[i] = nullptr;

  656.         }

  657.         else

  658.         {

  659.             // out-left

  660.             portName.clear();

  661. 

  662.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  663.             {

  664.                 portName  = pData->name;

  665.                 portName += ":";

  666.             }

  667. 

  668.             portName += "out-left";

  669.             portName.truncate(portNameSize);

  670. 

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

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

  673. 

  674.             // out-right

  675.             portName.clear();

  676. 

  677.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  678.             {

  679.                 portName  = pData->name;

  680.                 portName += ":";

  681.             }

  682. 

  683.             portName += "out-right";

  684.             portName.truncate(portNameSize);

  685. 

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

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

  688.         }

  689. 

  690.         // ---------------------------------------

  691.         // Event Input

  692. 

  693.         {

  694.             portName.clear();

  695. 

  696.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  697.             {

  698.                 portName  = pData->name;

  699.                 portName += ":";

  700.             }

  701. 

  702.             portName += "events-in";

  703.             portName.truncate(portNameSize);

  704. 

  705.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true, 0);

  706.         }

  707. 

  708.         // ---------------------------------------

  709.         // Event Output

  710. 

  711.         {

  712.             portName.clear();

  713. 

  714.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  715.             {

  716.                 portName  = pData->name;

  717.                 portName += ":";

  718.             }

  719. 

  720.             portName += "events-out";

  721.             portName.truncate(portNameSize);

  722. 

  723.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false, 0);

  724.         }

  725. 

  726.         // ---------------------------------------

  727.         // Parameters

  728. 

  729.         {

  730.             int j;

  731. 

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

  733.             j = FluidSynthReverbOnOff;

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

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

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

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

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

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

  740.             pData->param.ranges[j].def = sFluidDefaults[j];

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

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

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

  744. 

  745.             // ----------------------

  746.             j = FluidSynthReverbRoomSize;

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

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

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

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

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

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

  753.             pData->param.ranges[j].def = sFluidDefaults[j];

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

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

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

  757. 

  758.             // ----------------------

  759.             j = FluidSynthReverbDamp;

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

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

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

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

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

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

  766.             pData->param.ranges[j].def = sFluidDefaults[j];

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

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

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

  770. 

  771.             // ----------------------

  772.             j = FluidSynthReverbLevel;

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

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

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

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

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

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

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

  780.             pData->param.ranges[j].def = sFluidDefaults[j];

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

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

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

  784. 

  785.             // ----------------------

  786.             j = FluidSynthReverbWidth;

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

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

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

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

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

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

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

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

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

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

  797. 

  798.             // ----------------------

  799.             j = FluidSynthChorusOnOff;

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

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

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

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

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

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

  806.             pData->param.ranges[j].def = sFluidDefaults[j];

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

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

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

  810. 

  811.             // ----------------------

  812.             j = FluidSynthChorusNr;

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

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

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

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

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

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

  819.             pData->param.ranges[j].def = sFluidDefaults[j];

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

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

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

  823. 

  824.             // ----------------------

  825.             j = FluidSynthChorusLevel;

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

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

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

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

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

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

  832.             pData->param.ranges[j].def = sFluidDefaults[j];

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

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

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

  836. 

  837.             // ----------------------

  838.             j = FluidSynthChorusSpeedHz;

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

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

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

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

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

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

  845.             pData->param.ranges[j].def = sFluidDefaults[j];

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

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

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

  849. 

  850.             // ----------------------

  851.             j = FluidSynthChorusDepthMs;

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

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

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

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

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

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

  858.             pData->param.ranges[j].def = sFluidDefaults[j];

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

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

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

  862. 

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

  864.             j = FluidSynthChorusType;

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

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

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

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

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

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

  871.             pData->param.ranges[j].def = sFluidDefaults[j];

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

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

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

  875. 

  876.             // ----------------------

  877.             j = FluidSynthPolyphony;

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

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

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

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

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

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

  884.             pData->param.ranges[j].def = sFluidDefaults[j];

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

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

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

  888. 

  889.             // ----------------------

  890.             j = FluidSynthInterpolation;

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

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

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

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

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

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

  897.             pData->param.ranges[j].def = sFluidDefaults[j];

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

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

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

  901. 

  902.             // ----------------------

  903.             j = FluidSynthVoiceCount;

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

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

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

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

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

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

  910.             pData->param.ranges[j].def = sFluidDefaults[j];

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

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

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

  914. 

  915.             for (j=0; j<FluidSynthParametersMax; ++j)

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

  917.         }

  918. 

  919.         // ---------------------------------------

  920. 

  921.         // plugin hints

  922.         pData->hints  = 0x0;

  923.         pData->hints |= PLUGIN_IS_SYNTH;

  924.         pData->hints |= PLUGIN_CAN_VOLUME;

  925.         pData->hints |= PLUGIN_USES_MULTI_PROGS;

  926. 

  927.         if (! kUse16Outs)

  928.             pData->hints |= PLUGIN_CAN_BALANCE;

  929. 

  930.         // extra plugin hints

  931.         pData->extraHints  = 0x0;

  932.         pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  933. 

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

  935.         reloadPrograms(true);

  936. 

  937.         if (pData->active)

  938.             activate();

  939. 

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

  941.     }

  942. 

  943.     void reloadPrograms(const bool doInit) override

  944.     {

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

  946. 

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

  948.         bool hasDrums = false;

  949.         uint32_t drumIndex, drumProg;

  950.         drumIndex = drumProg = 0;

  951. 

  952.         // Delete old programs

  953.         pData->midiprog.clear();

  954. 

  955.         // Query new programs

  956.         uint32_t count = 0;

  957. 

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

  959.         {

  960. #if FLUIDSYNTH_VERSION_MAJOR < 2

  961.             fluid_preset_t f_preset;

  962. 

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

  964.             f_sfont->iteration_start(f_sfont);

  965.             for (; f_sfont->iteration_next(f_sfont, &f_preset);)

  966.                 ++count;

  967. 

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

  969.             CARLA_SAFE_ASSERT_RETURN(count > 0,);

  970. 

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

  972. 

  973.             // Update data

  974.             int tmp;

  975.             uint32_t i = 0;

  976.             f_sfont->iteration_start(f_sfont);

  977. 

  978.             for (; f_sfont->iteration_next(f_sfont, &f_preset);)

  979.             {

  980.                 CARLA_SAFE_ASSERT_BREAK(i < count);

  981. 

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

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

  984. 

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

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

  987. 

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

  989. #else

  990.             fluid_preset_t* f_preset;

  991. 

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

  993.             fluid_sfont_iteration_start(f_sfont);

  994.             for (; fluid_sfont_iteration_next(f_sfont);)

  995.                 ++count;

  996. 

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

  998.             CARLA_SAFE_ASSERT_RETURN(count > 0,);

  999. 

  1000.             pData->midiprog.createNew(count);

  1001. 

  1002.             // Update data

  1003.             int tmp;

  1004.             uint32_t i = 0;

  1005.             fluid_sfont_iteration_start(f_sfont);

  1006. 

  1007.             for (; (f_preset = fluid_sfont_iteration_next(f_sfont));)

  1008.             {

  1009.                 CARLA_SAFE_ASSERT_BREAK(i < count);

  1010. 

  1011.                 tmp = fluid_preset_get_banknum(f_preset);

  1012.                 pData->midiprog.data[i].bank = (tmp >= 0) ? static_cast<uint32_t>(tmp) : 0;

  1013. 

  1014.                 tmp = fluid_preset_get_num(f_preset);

  1015.                 pData->midiprog.data[i].program = (tmp >= 0) ? static_cast<uint32_t>(tmp) : 0;

  1016. 

  1017.                 pData->midiprog.data[i].name = carla_strdup(fluid_preset_get_name(f_preset));

  1018. #endif

  1019. 

  1020.                 if (pData->midiprog.data[i].bank == 128 && ! hasDrums)

  1021.                 {

  1022.                     hasDrums  = true;

  1023.                     drumIndex = i;

  1024.                     drumProg  = pData->midiprog.data[i].program;

  1025.                 }

  1026. 

  1027.                 ++i;

  1028.             }

  1029.         }

  1030.         else

  1031.         {

  1032.             // failing means 0 midi-programs, it shouldn't happen!

  1033.             carla_safe_assert("fluid_sfont_t* const f_sfont = fluid_synth_get_sfont_by_id(fSynth, fSynthId)", __FILE__, __LINE__);

  1034.             return;

  1035.         }

  1036. 

  1037.         if (doInit)

  1038.         {

  1039.             fluid_synth_program_reset(fSynth);

  1040. 

  1041.             // select first program, or 128 for ch10

  1042.             for (int i=0; i < MAX_MIDI_CHANNELS && i != 9; ++i)

  1043.             {

  1044.                 fluid_synth_set_channel_type(fSynth, i, CHANNEL_TYPE_MELODIC);

  1045.                 fluid_synth_program_select(fSynth, i, fSynthId, pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1046. 

  1047.                 fCurMidiProgs[i] = 0;

  1048.             }

  1049. 

  1050.             if (hasDrums)

  1051.             {

  1052.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_DRUM);

  1053.                 fluid_synth_program_select(fSynth, 9, fSynthId, 128, drumProg);

  1054. 

  1055.                 fCurMidiProgs[9] = static_cast<int32_t>(drumIndex);

  1056.             }

  1057.             else

  1058.             {

  1059.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_MELODIC);

  1060.                 fluid_synth_program_select(fSynth, 9, fSynthId, pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1061. 

  1062.                 fCurMidiProgs[9] = 0;

  1063.             }

  1064. 

  1065.             pData->midiprog.current = 0;

  1066.         }

  1067.         else

  1068.         {

  1069.             pData->engine->callback(true, true, ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0, 0.0f, nullptr);

  1070.         }

  1071.     }

  1072. 

  1073.     // -------------------------------------------------------------------

  1074.     // Plugin processing

  1075. 

  1076.     void process(const float** const, float** const audioOut, const float** const, float** const, const uint32_t frames) override

  1077.     {

  1078.         // --------------------------------------------------------------------------------------------------------

  1079.         // Check if active

  1080. 

  1081.         if (! pData->active)

  1082.         {

  1083.             // disable any output sound

  1084.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1085.                 carla_zeroFloats(audioOut[i], frames);

  1086.             return;

  1087.         }

  1088. 

  1089.         // --------------------------------------------------------------------------------------------------------

  1090.         // Check if needs reset

  1091. 

  1092.         if (pData->needsReset)

  1093.         {

  1094.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1095.             {

  1096.                 for (int i=0; i < MAX_MIDI_CHANNELS; ++i)

  1097.                 {

  1098.                     fluid_synth_all_notes_off(fSynth, i);

  1099.                     fluid_synth_all_sounds_off(fSynth, i);

  1100.                 }

  1101.             }

  1102.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1103.             {

  1104.                 for (int i=0; i < MAX_MIDI_NOTE; ++i)

  1105.                     fluid_synth_noteoff(fSynth, pData->ctrlChannel, i);

  1106.             }

  1107. 

  1108.             pData->needsReset = false;

  1109.         }

  1110. 

  1111.         // --------------------------------------------------------------------------------------------------------

  1112.         // Event Input and Processing

  1113. 

  1114.         {

  1115.             // ----------------------------------------------------------------------------------------------------

  1116.             // MIDI Input (External)

  1117. 

  1118.             if (pData->extNotes.mutex.tryLock())

  1119.             {

  1120.                 for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin2(); it.valid(); it.next())

  1121.                 {

  1122.                     const ExternalMidiNote& note(it.getValue(kExternalMidiNoteFallback));

  1123.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1124. 

  1125.                     if (note.velo > 0)

  1126.                         fluid_synth_noteon(fSynth, note.channel, note.note, note.velo);

  1127.                     else

  1128.                         fluid_synth_noteoff(fSynth,note.channel, note.note);

  1129.                 }

  1130. 

  1131.                 pData->extNotes.data.clear();

  1132.                 pData->extNotes.mutex.unlock();

  1133. 

  1134.             } // End of MIDI Input (External)

  1135. 

  1136.             // ----------------------------------------------------------------------------------------------------

  1137.             // Event Input (System)

  1138. 

  1139. #ifndef BUILD_BRIDGE

  1140.             bool allNotesOffSent = false;

  1141. #endif

  1142.             uint32_t timeOffset = 0;

  1143. 

  1144.             uint32_t nextBankIds[MAX_MIDI_CHANNELS] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 };

  1145. 

  1146.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1147.                 nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1148. 

  1149.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1150.             {

  1151.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1152. 

  1153.                 uint32_t eventTime = event.time;

  1154.                 CARLA_SAFE_ASSERT_UINT2_CONTINUE(eventTime < frames, eventTime, frames);

  1155. 

  1156.                 if (eventTime < timeOffset)

  1157.                 {

  1158.                     carla_stderr2("Timing error, eventTime:%u < timeOffset:%u for '%s'",

  1159.                                   eventTime, timeOffset, pData->name);

  1160.                     eventTime = timeOffset;

  1161.                 }

  1162.                 else if (eventTime > timeOffset)

  1163.                 {

  1164.                     if (processSingle(audioOut, eventTime - timeOffset, timeOffset))

  1165.                     {

  1166.                         timeOffset = eventTime;

  1167. 

  1168.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1169.                             nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1170.                     }

  1171.                 }

  1172. 

  1173.                 // Control change

  1174.                 switch (event.type)

  1175.                 {

  1176.                 case kEngineEventTypeNull:

  1177.                     break;

  1178. 

  1179.                 case kEngineEventTypeControl:

  1180.                 {

  1181.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1182. 

  1183.                     switch (ctrlEvent.type)

  1184.                     {

  1185.                     case kEngineControlEventTypeNull:

  1186.                         break;

  1187. 

  1188.                     case kEngineControlEventTypeParameter:

  1189.                     {

  1190. #ifndef BUILD_BRIDGE

  1191.                         // Control backend stuff

  1192.                         if (event.channel == pData->ctrlChannel)

  1193.                         {

  1194.                             float value;

  1195. 

  1196.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1197.                             {

  1198.                                 value = ctrlEvent.value;

  1199.                                 setDryWetRT(value);

  1200.                             }

  1201. 

  1202.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1203.                             {

  1204.                                 value = ctrlEvent.value*127.0f/100.0f;

  1205.                                 setVolumeRT(value);

  1206.                             }

  1207. 

  1208.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1209.                             {

  1210.                                 float left, right;

  1211.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1212. 

  1213.                                 if (value < 0.0f)

  1214.                                 {

  1215.                                     left  = -1.0f;

  1216.                                     right = (value*2.0f)+1.0f;

  1217.                                 }

  1218.                                 else if (value > 0.0f)

  1219.                                 {

  1220.                                     left  = (value*2.0f)-1.0f;

  1221.                                     right = 1.0f;

  1222.                                 }

  1223.                                 else

  1224.                                 {

  1225.                                     left  = -1.0f;

  1226.                                     right = 1.0f;

  1227.                                 }

  1228. 

  1229.                                 setBalanceLeftRT(left);

  1230.                                 setBalanceRightRT(right);

  1231.                             }

  1232.                         }

  1233. #endif

  1234.                         // Control plugin parameters

  1235.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1236.                         {

  1237.                             if (pData->param.data[k].midiChannel != event.channel)

  1238.                                 continue;

  1239.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1240.                                 continue;

  1241.                             if (pData->param.data[k].hints != PARAMETER_INPUT)

  1242.                                 continue;

  1243.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1244.                                 continue;

  1245. 

  1246.                             float value;

  1247. 

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

  1249.                             {

  1250.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1251.                             }

  1252.                             else

  1253.                             {

  1254.                                 if (pData->param.data[k].hints & PARAMETER_IS_LOGARITHMIC)

  1255.                                     value = pData->param.ranges[k].getUnnormalizedLogValue(ctrlEvent.value);

  1256.                                 else

  1257.                                     value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1258. 

  1259.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1260.                                     value = std::rint(value);

  1261.                             }

  1262. 

  1263.                             setParameterValueRT(k, value);

  1264.                         }

  1265. 

  1266.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param < MAX_MIDI_CONTROL)

  1267.                         {

  1268.                             fluid_synth_cc(fSynth, event.channel, ctrlEvent.param, int(ctrlEvent.value*127.0f));

  1269.                         }

  1270.                         break;

  1271.                     }

  1272. 

  1273.                     case kEngineControlEventTypeMidiBank:

  1274.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1275.                             nextBankIds[event.channel] = ctrlEvent.param;

  1276.                         break;

  1277. 

  1278.                     case kEngineControlEventTypeMidiProgram:

  1279.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1280.                         {

  1281.                             const uint32_t bankId(nextBankIds[event.channel]);

  1282.                             const uint32_t progId(ctrlEvent.param);

  1283. 

  1284.                             // TODO int32_t midiprog.find(bank, prog)

  1285.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1286.                             {

  1287.                                 if (pData->midiprog.data[k].bank == bankId && pData->midiprog.data[k].program == progId)

  1288.                                 {

  1289.                                     fluid_synth_program_select(fSynth, event.channel, fSynthId, bankId, progId);

  1290.                                     fCurMidiProgs[event.channel] = static_cast<int32_t>(k);

  1291. 

  1292.                                     if (event.channel == pData->ctrlChannel)

  1293.                                     {

  1294.                                         pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange,

  1295.                                                                static_cast<int32_t>(k),

  1296.                                                                0, 0, 0.0f);

  1297.                                     }

  1298. 

  1299.                                     break;

  1300.                                 }

  1301.                             }

  1302.                         }

  1303.                         break;

  1304. 

  1305.                     case kEngineControlEventTypeAllSoundOff:

  1306.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1307.                             fluid_synth_all_sounds_off(fSynth, event.channel);

  1308.                         break;

  1309. 

  1310.                     case kEngineControlEventTypeAllNotesOff:

  1311.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1312.                         {

  1313. #ifndef BUILD_BRIDGE

  1314.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1315.                             {

  1316.                                 allNotesOffSent = true;

  1317.                                 postponeRtAllNotesOff();

  1318.                             }

  1319. #endif

  1320. 

  1321.                             fluid_synth_all_notes_off(fSynth, event.channel);

  1322.                         }

  1323.                         break;

  1324.                     }

  1325. 

  1326.                     break;

  1327.                 }

  1328. 

  1329.                 case kEngineEventTypeMidi: {

  1330.                     const EngineMidiEvent& midiEvent(event.midi);

  1331. 

  1332.                     if (midiEvent.size > EngineMidiEvent::kDataSize)

  1333.                         continue;

  1334. 

  1335.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1336. 

  1337.                     // Fix bad note-off

  1338.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1339.                         status = MIDI_STATUS_NOTE_OFF;

  1340. 

  1341.                     switch (status)

  1342.                     {

  1343.                     case MIDI_STATUS_NOTE_OFF: {

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

  1345. 

  1346.                         fluid_synth_noteoff(fSynth, event.channel, note);

  1347. 

  1348.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, note, 0, 0.0f);

  1349.                         break;

  1350.                     }

  1351. 

  1352.                     case MIDI_STATUS_NOTE_ON: {

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

  1354.                         const uint8_t velo = midiEvent.data[2];

  1355. 

  1356.                         fluid_synth_noteon(fSynth, event.channel, note, velo);

  1357. 

  1358.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, note, velo, 0.0f);

  1359.                         break;

  1360.                     }

  1361. 

  1362.                     case MIDI_STATUS_POLYPHONIC_AFTERTOUCH:

  1363.                         if (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH)

  1364.                         {

  1365.                             //const uint8_t note     = midiEvent.data[1];

  1366.                             //const uint8_t pressure = midiEvent.data[2];

  1367. 

  1368.                             // not in fluidsynth API

  1369.                         }

  1370.                         break;

  1371. 

  1372.                     case MIDI_STATUS_CONTROL_CHANGE:

  1373.                         if (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1374.                         {

  1375.                             const uint8_t control = midiEvent.data[1];

  1376.                             const uint8_t value   = midiEvent.data[2];

  1377. 

  1378.                             fluid_synth_cc(fSynth, event.channel, control, value);

  1379.                         }

  1380.                         break;

  1381. 

  1382.                     case MIDI_STATUS_CHANNEL_PRESSURE:

  1383.                         if (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE)

  1384.                         {

  1385.                             const uint8_t pressure = midiEvent.data[1];

  1386. 

  1387.                             fluid_synth_channel_pressure(fSynth, event.channel, pressure);;

  1388.                         }

  1389.                         break;

  1390. 

  1391.                     case MIDI_STATUS_PITCH_WHEEL_CONTROL:

  1392.                         if (pData->options & PLUGIN_OPTION_SEND_PITCHBEND)

  1393.                         {

  1394.                             const uint8_t lsb = midiEvent.data[1];

  1395.                             const uint8_t msb = midiEvent.data[2];

  1396.                             const int   value = ((msb << 7) | lsb);

  1397. 

  1398.                             fluid_synth_pitch_bend(fSynth, event.channel, value);

  1399.                         }

  1400.                         break;

  1401. 

  1402.                     default:

  1403.                         continue;

  1404.                         break;

  1405.                     } // switch (status)

  1406.                 } break;

  1407.                 } // switch (event.type)

  1408.             }

  1409. 

  1410.             pData->postRtEvents.trySplice();

  1411. 

  1412.             if (frames > timeOffset)

  1413.                 processSingle(audioOut, frames - timeOffset, timeOffset);

  1414. 

  1415.         } // End of Event Input and Processing

  1416. 

  1417. #ifndef BUILD_BRIDGE

  1418.         // --------------------------------------------------------------------------------------------------------

  1419.         // Control Output

  1420. 

  1421.         {

  1422.             uint32_t k = FluidSynthVoiceCount;

  1423.             fParamBuffers[k] = float(fluid_synth_get_active_voice_count(fSynth));

  1424.             pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1425. 

  1426.             if (pData->param.data[k].midiCC > 0)

  1427.             {

  1428.                 float value(pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]));

  1429.                 pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), value);

  1430.             }

  1431. 

  1432.         } // End of Control Output

  1433. #endif

  1434.     }

  1435. 

  1436.     bool processSingle(float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1437.     {

  1438.         CARLA_SAFE_ASSERT_RETURN(outBuffer != nullptr, false);

  1439.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1440. 

  1441.         // --------------------------------------------------------------------------------------------------------

  1442.         // Try lock, silence otherwise

  1443. 

  1444. #ifndef STOAT_TEST_BUILD

  1445.         if (pData->engine->isOffline())

  1446.         {

  1447.             pData->singleMutex.lock();

  1448.         }

  1449.         else

  1450. #endif

  1451.         if (! pData->singleMutex.tryLock())

  1452.         {

  1453.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1454.             {

  1455.                 for (uint32_t k=0; k < frames; ++k)

  1456.                     outBuffer[i][k+timeOffset] = 0.0f;

  1457.             }

  1458. 

  1459.             return false;

  1460.         }

  1461. 

  1462.         // --------------------------------------------------------------------------------------------------------

  1463.         // Fill plugin buffers and Run plugin

  1464. 

  1465.         if (kUse16Outs)

  1466.         {

  1467.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1468.                 carla_zeroFloats(fAudio16Buffers[i], frames);

  1469. 

  1470.             // FIXME use '32' or '16' instead of outs

  1471.             fluid_synth_process(fSynth, static_cast<int>(frames),

  1472.                                 0, nullptr,

  1473.                                 static_cast<int>(pData->audioOut.count), fAudio16Buffers);

  1474.         }

  1475.         else

  1476.         {

  1477.             fluid_synth_write_float(fSynth, static_cast<int>(frames),

  1478.                                     outBuffer[0] + timeOffset, 0, 1,

  1479.                                     outBuffer[1] + timeOffset, 0, 1);

  1480.         }

  1481. 

  1482. #ifndef BUILD_BRIDGE

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

  1484.         // Post-processing (volume and balance)

  1485. 

  1486.         {

  1487.             // note - balance not possible with kUse16Outs, so we can safely skip fAudioOutBuffers

  1488.             const bool doVolume  = (pData->hints & PLUGIN_CAN_VOLUME) != 0 && carla_isNotEqual(pData->postProc.volume, 1.0f);

  1489.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_isEqual(pData->postProc.balanceLeft, -1.0f) && carla_isEqual(pData->postProc.balanceRight, 1.0f));

  1490. 

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

  1492. 

  1493.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1494.             {

  1495.                 // Balance

  1496.                 if (doBalance)

  1497.                 {

  1498.                     if (i % 2 == 0)

  1499.                         carla_copyFloats(oldBufLeft, outBuffer[i]+timeOffset, frames);

  1500. 

  1501.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1502.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1503. 

  1504.                     for (uint32_t k=0; k < frames; ++k)

  1505.                     {

  1506.                         if (i % 2 == 0)

  1507.                         {

  1508.                             // left

  1509.                             outBuffer[i][k+timeOffset]  = oldBufLeft[k]                * (1.0f - balRangeL);

  1510.                             outBuffer[i][k+timeOffset] += outBuffer[i+1][k+timeOffset] * (1.0f - balRangeR);

  1511.                         }

  1512.                         else

  1513.                         {

  1514.                             // right

  1515.                             outBuffer[i][k+timeOffset]  = outBuffer[i][k+timeOffset] * balRangeR;

  1516.                             outBuffer[i][k+timeOffset] += oldBufLeft[k]              * balRangeL;

  1517.                         }

  1518.                     }

  1519.                 }

  1520. 

  1521.                 // Volume

  1522.                 if (kUse16Outs)

  1523.                 {

  1524.                     for (uint32_t k=0; k < frames; ++k)

  1525.                         outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k] * pData->postProc.volume;

  1526.                 }

  1527.                 else if (doVolume)

  1528.                 {

  1529.                     for (uint32_t k=0; k < frames; ++k)

  1530.                         outBuffer[i][k+timeOffset] *= pData->postProc.volume;

  1531.                 }

  1532.             }

  1533. 

  1534.         } // End of Post-processing

  1535. #else

  1536.         if (kUse16Outs)

  1537.         {

  1538.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1539.             {

  1540.                 for (uint32_t k=0; k < frames; ++k)

  1541.                     outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k];

  1542.             }

  1543.         }

  1544. #endif

  1545. 

  1546.         // --------------------------------------------------------------------------------------------------------

  1547. 

  1548.         pData->singleMutex.unlock();

  1549.         return true;

  1550.     }

  1551. 

  1552.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1553.     {

  1554.         if (! kUse16Outs)

  1555.             return;

  1556. 

  1557.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1558.         {

  1559.             if (fAudio16Buffers[i] != nullptr)

  1560.                 delete[] fAudio16Buffers[i];

  1561.             fAudio16Buffers[i] = new float[newBufferSize];

  1562.         }

  1563.     }

  1564. 

  1565.     void sampleRateChanged(const double newSampleRate) override

  1566.     {

  1567.         CARLA_SAFE_ASSERT_RETURN(fSettings != nullptr,);

  1568.         fluid_settings_setnum(fSettings, "synth.sample-rate", newSampleRate);

  1569. 

  1570.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

  1571.         fluid_synth_set_sample_rate(fSynth, float(newSampleRate));

  1572.     }

  1573. 

  1574.     // -------------------------------------------------------------------

  1575.     // Plugin buffers

  1576. 

  1577.     void clearBuffers() noexcept override

  1578.     {

  1579.         carla_debug("CarlaPluginFluidSynth::clearBuffers() - start");

  1580. 

  1581.         if (fAudio16Buffers != nullptr)

  1582.         {

  1583.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1584.             {

  1585.                 if (fAudio16Buffers[i] != nullptr)

  1586.                 {

  1587.                     delete[] fAudio16Buffers[i];

  1588.                     fAudio16Buffers[i] = nullptr;

  1589.                 }

  1590.             }

  1591. 

  1592.             delete[] fAudio16Buffers;

  1593.             fAudio16Buffers = nullptr;

  1594.         }

  1595. 

  1596.         CarlaPlugin::clearBuffers();

  1597. 

  1598.         carla_debug("CarlaPluginFluidSynth::clearBuffers() - end");

  1599.     }

  1600. 

  1601.     // -------------------------------------------------------------------

  1602. 

  1603.     const void* getExtraStuff() const noexcept override

  1604.     {

  1605.         static const char xtrue[]  = "true";

  1606.         static const char xfalse[] = "false";

  1607.         return kUse16Outs ? xtrue : xfalse;

  1608.     }

  1609. 

  1610.     // -------------------------------------------------------------------

  1611. 

  1612.     bool init(const char* const filename, const char* const name, const char* const label, const uint options)

  1613.     {

  1614.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  1615. 

  1616.         // ---------------------------------------------------------------

  1617.         // first checks

  1618. 

  1619.         if (pData->client != nullptr)

  1620.         {

  1621.             pData->engine->setLastError("Plugin client is already registered");

  1622.             return false;

  1623.         }

  1624. 

  1625.         if (fSynth == nullptr)

  1626.         {

  1627.             pData->engine->setLastError("null synth");

  1628.             return false;

  1629.         }

  1630. 

  1631.         if (filename == nullptr || filename[0] == '\0')

  1632.         {

  1633.             pData->engine->setLastError("null filename");

  1634.             return false;

  1635.         }

  1636. 

  1637.         if (label == nullptr || label[0] == '\0')

  1638.         {

  1639.             pData->engine->setLastError("null label");

  1640.             return false;

  1641.         }

  1642. 

  1643.         // ---------------------------------------------------------------

  1644.         // open soundfont

  1645. 

  1646.         const int synthId(fluid_synth_sfload(fSynth, filename, 0));

  1647. 

  1648.         if (synthId < 0)

  1649.         {

  1650.             pData->engine->setLastError("Failed to load SoundFont file");

  1651.             return false;

  1652.         }

  1653. 

  1654.         fSynthId = static_cast<uint>(synthId);

  1655. 

  1656.         // ---------------------------------------------------------------

  1657.         // get info

  1658. 

  1659.         CarlaString label2(label);

  1660. 

  1661.         if (kUse16Outs && ! label2.endsWith(" (16 outs)"))

  1662.             label2 += " (16 outs)";

  1663. 

  1664.         fLabel          = label2.dup();

  1665.         pData->filename = carla_strdup(filename);

  1666. 

  1667.         if (name != nullptr && name[0] != '\0')

  1668.             pData->name = pData->engine->getUniquePluginName(name);

  1669.         else

  1670.             pData->name = pData->engine->getUniquePluginName(label);

  1671. 

  1672.         // ---------------------------------------------------------------

  1673.         // register client

  1674. 

  1675.         pData->client = pData->engine->addClient(this);

  1676. 

  1677.         if (pData->client == nullptr || ! pData->client->isOk())

  1678.         {

  1679.             pData->engine->setLastError("Failed to register plugin client");

  1680.             return false;

  1681.         }

  1682. 

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

  1684.         // set default options

  1685. 

  1686.         pData->options  = 0x0;

  1687.         pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1688.         pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1689.         pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  1690.         pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1691. 

  1692.         if (options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1693.             pData->options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  1694. 

  1695.         return true;

  1696.     }

  1697. 

  1698. private:

  1699.     void initializeFluidDefaultsIfNeeded()

  1700.     {

  1701.         if (sFluidDefaultsStored)

  1702.             return;

  1703.         sFluidDefaultsStored = true;

  1704.         // reverb defaults

  1705.         sFluidDefaults[FluidSynthReverbOnOff] = 1.0f;

  1706. #if FLUIDSYNTH_VERSION_MAJOR < 2

  1707.         sFluidDefaults[FluidSynthReverbRoomSize] = FLUID_REVERB_DEFAULT_ROOMSIZE;

  1708.         sFluidDefaults[FluidSynthReverbDamp] = FLUID_REVERB_DEFAULT_DAMP;

  1709.         sFluidDefaults[FluidSynthReverbLevel] = FLUID_REVERB_DEFAULT_LEVEL;

  1710.         sFluidDefaults[FluidSynthReverbWidth] = FLUID_REVERB_DEFAULT_WIDTH;

  1711. #else

  1712.         double reverbVal;

  1713.         fluid_settings_getnum_default(fSettings, "synth.reverb.room-size", &reverbVal);

  1714.         sFluidDefaults[FluidSynthReverbRoomSize] = reverbVal;

  1715.         fluid_settings_getnum_default(fSettings, "synth.reverb.damp", &reverbVal);

  1716.         sFluidDefaults[FluidSynthReverbDamp] = reverbVal;

  1717.         fluid_settings_getnum_default(fSettings, "synth.reverb.level", &reverbVal);

  1718.         sFluidDefaults[FluidSynthReverbLevel] = reverbVal;

  1719.         fluid_settings_getnum_default(fSettings, "synth.reverb.width", &reverbVal);

  1720.         sFluidDefaults[FluidSynthReverbWidth] = reverbVal;

  1721. #endif

  1722. 

  1723.         // chorus defaults

  1724.         sFluidDefaults[FluidSynthChorusOnOff] = 1.0f;

  1725. #if FLUIDSYNTH_VERSION_MAJOR < 2

  1726.         sFluidDefaults[FluidSynthChorusNr] = FLUID_CHORUS_DEFAULT_N;

  1727.         sFluidDefaults[FluidSynthChorusLevel] = FLUID_CHORUS_DEFAULT_LEVEL;

  1728.         sFluidDefaults[FluidSynthChorusSpeedHz] = FLUID_CHORUS_DEFAULT_SPEED;

  1729.         sFluidDefaults[FluidSynthChorusDepthMs] = FLUID_CHORUS_DEFAULT_DEPTH;

  1730.         sFluidDefaults[FluidSynthChorusType] = FLUID_CHORUS_DEFAULT_TYPE;

  1731. #else

  1732.         double chorusVal;

  1733.         fluid_settings_getnum_default(fSettings, "synth.chorus.nr", &chorusVal);

  1734.         sFluidDefaults[FluidSynthChorusNr] = chorusVal;

  1735.         fluid_settings_getnum_default(fSettings, "synth.chorus.level", &chorusVal);

  1736.         sFluidDefaults[FluidSynthChorusLevel] = chorusVal;

  1737.         fluid_settings_getnum_default(fSettings, "synth.chorus.speed", &chorusVal);

  1738.         sFluidDefaults[FluidSynthChorusSpeedHz] = chorusVal;

  1739.         fluid_settings_getnum_default(fSettings, "synth.chorus.depth", &chorusVal);

  1740.         sFluidDefaults[FluidSynthChorusDepthMs] = chorusVal;

  1741.         // There is no settings for chorus default type

  1742.         sFluidDefaults[FluidSynthChorusType] = (float)fluid_synth_get_chorus_type(fSynth);

  1743. #endif

  1744. 

  1745.         // misc. defaults

  1746.         sFluidDefaults[FluidSynthInterpolation] = FLUID_INTERP_DEFAULT;

  1747.     }

  1748. 

  1749.     enum FluidSynthParameters {

  1750.         FluidSynthReverbOnOff    = 0,

  1751.         FluidSynthReverbRoomSize = 1,

  1752.         FluidSynthReverbDamp     = 2,

  1753.         FluidSynthReverbLevel    = 3,

  1754.         FluidSynthReverbWidth    = 4,

  1755.         FluidSynthChorusOnOff    = 5,

  1756.         FluidSynthChorusNr       = 6,

  1757.         FluidSynthChorusLevel    = 7,

  1758.         FluidSynthChorusSpeedHz  = 8,

  1759.         FluidSynthChorusDepthMs  = 9,

  1760.         FluidSynthChorusType     = 10,

  1761.         FluidSynthPolyphony      = 11,

  1762.         FluidSynthInterpolation  = 12,

  1763.         FluidSynthVoiceCount     = 13,

  1764.         FluidSynthParametersMax  = 14

  1765.     };

  1766. 

  1767.     const bool kUse16Outs;

  1768. 

  1769.     fluid_settings_t* fSettings;

  1770.     fluid_synth_t*    fSynth;

  1771.     uint              fSynthId;

  1772. 

  1773.     float** fAudio16Buffers;

  1774.     float   fParamBuffers[FluidSynthParametersMax];

  1775. 

  1776.     static bool  sFluidDefaultsStored;

  1777.     static float sFluidDefaults[FluidSynthParametersMax];

  1778. 

  1779.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  1780. 

  1781.     const char* fLabel;

  1782. 

  1783.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginFluidSynth)

  1784. };

  1785. 

  1786. bool CarlaPluginFluidSynth::sFluidDefaultsStored = false;

  1787. float CarlaPluginFluidSynth::sFluidDefaults[FluidSynthParametersMax] = {

  1788.     0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,

  1789. };

  1790. 

  1791. CARLA_BACKEND_END_NAMESPACE

  1792. 

  1793. #endif // HAVE_FLUIDSYNTH

  1794. 

  1795. CARLA_BACKEND_START_NAMESPACE

  1796. 

  1797. // -------------------------------------------------------------------------------------------------------------------

  1798. 

  1799. CarlaPlugin* CarlaPlugin::newFluidSynth(const Initializer& init, const bool use16Outs)

  1800. {

  1801.     carla_debug("CarlaPlugin::newFluidSynth({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "}, %s)", init.engine, init.filename, init.name, init.label, init.uniqueId, bool2str(use16Outs));

  1802. 

  1803. #ifdef HAVE_FLUIDSYNTH

  1804.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && use16Outs)

  1805.     {

  1806.         init.engine->setLastError("Carla's rack mode can only work with Stereo modules,"

  1807.                                   "please choose the 2-channel only SoundFont version");

  1808.         return nullptr;

  1809.     }

  1810. 

  1811.     if (! fluid_is_soundfont(init.filename))

  1812.     {

  1813.         init.engine->setLastError("Requested file is not a valid SoundFont");

  1814.         return nullptr;

  1815.     }

  1816. 

  1817.     CarlaPluginFluidSynth* const plugin(new CarlaPluginFluidSynth(init.engine, init.id,  use16Outs));

  1818. 

  1819.     if (! plugin->init(init.filename, init.name, init.label, init.options))

  1820.     {

  1821.         delete plugin;

  1822.         return nullptr;

  1823.     }

  1824. 

  1825.     return plugin;

  1826. #else

  1827.     init.engine->setLastError("fluidsynth support not available");

  1828.     return nullptr;

  1829. 

  1830.     // unused

  1831.     (void)use16Outs;

  1832. #endif

  1833. }

  1834. 

  1835. // -------------------------------------------------------------------------------------------------------------------

  1836. 

  1837. CARLA_BACKEND_END_NAMESPACE