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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.     bool getLabel(char* const strBuf) const noexcept override

  231.     {

  232.         if (fLabel != nullptr)

  233.         {

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

  235.             return true;

  236.         }

  237. 

  238.         return CarlaPlugin::getLabel(strBuf);

  239.     }

  240. 

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

  242.     {

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

  244.         return true;

  245.     }

  246. 

  247.     bool getCopyright(char* const strBuf) const noexcept override

  248.     {

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

  250.         return true;

  251.     }

  252. 

  253.     bool getRealName(char* const strBuf) const noexcept override

  254.     {

  255.         return getLabel(strBuf);

  256.     }

  257. 

  258.     bool getParameterName(const uint32_t parameterId, char* const strBuf) const noexcept override

  259.     {

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

  261. 

  262.         switch (parameterId)

  263.         {

  264.         case FluidSynthReverbOnOff:

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

  266.             return true;

  267.         case FluidSynthReverbRoomSize:

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

  269.             return true;

  270.         case FluidSynthReverbDamp:

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

  272.             return true;

  273.         case FluidSynthReverbLevel:

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

  275.             return true;

  276.         case FluidSynthReverbWidth:

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

  278.             return true;

  279.         case FluidSynthChorusOnOff:

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

  281.             return true;

  282.         case FluidSynthChorusNr:

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

  284.             return true;

  285.         case FluidSynthChorusLevel:

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

  287.             return true;

  288.         case FluidSynthChorusSpeedHz:

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

  290.             return true;

  291.         case FluidSynthChorusDepthMs:

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

  293.             return true;

  294.         case FluidSynthChorusType:

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

  296.             return true;

  297.         case FluidSynthPolyphony:

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

  299.             return true;

  300.         case FluidSynthInterpolation:

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

  302.             return true;

  303.         case FluidSynthVoiceCount:

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

  305.             return true;

  306.         }

  307. 

  308.         return CarlaPlugin::getParameterName(parameterId, strBuf);

  309.     }

  310. 

  311.     bool getParameterUnit(const uint32_t parameterId, char* const strBuf) const noexcept override

  312.     {

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

  314. 

  315.         switch (parameterId)

  316.         {

  317.         case FluidSynthChorusSpeedHz:

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

  319.             return true;

  320.         case FluidSynthChorusDepthMs:

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

  322.             return true;

  323.         }

  324. 

  325.         return CarlaPlugin::getParameterUnit(parameterId, strBuf);

  326.     }

  327. 

  328.     bool getParameterScalePointLabel(const uint32_t parameterId, const uint32_t scalePointId, char* const strBuf) const noexcept override

  329.     {

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

  331.         CARLA_SAFE_ASSERT_RETURN(scalePointId < getParameterScalePointCount(parameterId), false);

  332. 

  333.         switch (parameterId)

  334.         {

  335.         case FluidSynthChorusType:

  336.             switch (scalePointId)

  337.             {

  338.             case 0:

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

  340.                 return true;

  341.             case 1:

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

  343.                 return true;

  344.             }

  345.             break;

  346.         case FluidSynthInterpolation:

  347.             switch (scalePointId)

  348.             {

  349.             case 0:

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

  351.                 return true;

  352.             case 1:

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

  354.                 return true;

  355.             case 2:

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

  357.                 return true;

  358.             case 3:

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

  360.                 return true;

  361.             }

  362.             break;

  363.         }

  364. 

  365.         return CarlaPlugin::getParameterScalePointLabel(parameterId, scalePointId, strBuf);

  366.     }

  367. 

  368.     // -------------------------------------------------------------------

  369.     // Set data (state)

  370. 

  371.     void prepareForSave() override

  372.     {

  373.         char strBuf[STR_MAX+1];

  374.         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],

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

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

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

  378. 

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

  380.     }

  381. 

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

  383.     // Set data (internal stuff)

  384. 

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

  386.     {

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

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

  389. 

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

  391.     }

  392. 

  393.     // -------------------------------------------------------------------

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

  395. 

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

  397.     {

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

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

  400. 

  401.         float fixedValue;

  402. 

  403.         {

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

  405.             fixedValue = setParameterValueInFluidSynth(parameterId, value);

  406. 

  407.         }

  408. 

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

  410.     }

  411. 

  412.     void setParameterValueRT(const uint32_t parameterId, const float value, const bool sendCallbackLater) noexcept override

  413.     {

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

  415. 

  416.         CarlaPlugin::setParameterValueRT(parameterId, fixedValue, sendCallbackLater);

  417.     }

  418. 

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

  420.     {

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

  422. 

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

  424.         fParamBuffers[parameterId] = fixedValue;

  425. 

  426.         switch (parameterId)

  427.         {

  428.         case FluidSynthReverbOnOff:

  429.             try {

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

  431.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_reverb_on")

  432.             break;

  433. 

  434.         case FluidSynthReverbRoomSize:

  435.         case FluidSynthReverbDamp:

  436.         case FluidSynthReverbLevel:

  437.         case FluidSynthReverbWidth:

  438.             try {

  439.                 fluid_synth_set_reverb(fSynth,

  440.                                        fParamBuffers[FluidSynthReverbRoomSize],

  441.                                        fParamBuffers[FluidSynthReverbDamp],

  442.                                        fParamBuffers[FluidSynthReverbWidth],

  443.                                        fParamBuffers[FluidSynthReverbLevel]);

  444.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_reverb")

  445.             break;

  446. 

  447.         case FluidSynthChorusOnOff:

  448.             try {

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

  450.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_chorus_on")

  451.             break;

  452. 

  453.         case FluidSynthChorusNr:

  454.         case FluidSynthChorusLevel:

  455.         case FluidSynthChorusSpeedHz:

  456.         case FluidSynthChorusDepthMs:

  457.         case FluidSynthChorusType:

  458.             try {

  459.                 fluid_synth_set_chorus(fSynth,

  460.                                        (int)fParamBuffers[FluidSynthChorusNr],

  461.                                        fParamBuffers[FluidSynthChorusLevel],

  462.                                        fParamBuffers[FluidSynthChorusSpeedHz],

  463.                                        fParamBuffers[FluidSynthChorusDepthMs],

  464.                                        (int)fParamBuffers[FluidSynthChorusType]);

  465.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_chorus")

  466.             break;

  467. 

  468.         case FluidSynthPolyphony:

  469.             try {

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

  471.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_polyphony")

  472.             break;

  473. 

  474.         case FluidSynthInterpolation:

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

  476.             {

  477.                 try {

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

  479.                 } CARLA_SAFE_EXCEPTION_BREAK("fluid_synth_set_interp_method")

  480.             }

  481.             break;

  482. 

  483.         default:

  484.             break;

  485.         }

  486. 

  487.         return fixedValue;

  488.     }

  489. 

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

  491.     {

  492.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

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

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

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

  497. 

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

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

  500. 

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

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

  503. 

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

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

  506. 

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

  508. 

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

  510.         {

  511.             uint8_t channel = 0;

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

  513.             {

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

  515. 

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

  517.                 {

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

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

  520. 

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

  522.                     fCurMidiProgs[channel] = index;

  523. 

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

  525.                     {

  526.                         pData->midiprog.current = index;

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

  528.                                                 ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED,

  529.                                                 pData->id,

  530.                                                 index,

  531.                                                 0, 0, 0.0f, nullptr);

  532.                     }

  533.                 }

  534. 

  535.                 ++channel;

  536.             }

  537.             CARLA_SAFE_ASSERT(channel == MAX_MIDI_CHANNELS);

  538.         }

  539. 

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

  541.     }

  542. 

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

  544.     {

  545.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

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

  548. 

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

  550.         {

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

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

  553. 

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

  555. 

  556.             try {

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

  558.             } CARLA_SAFE_EXCEPTION("fluid_synth_program_select")

  559. 

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

  561.         }

  562. 

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

  564.     }

  565. 

  566.     // FIXME: this is never used

  567.     void setMidiProgramRT(const uint32_t uindex, const bool sendCallbackLater) noexcept override

  568.     {

  569.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

  571. 

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

  573.         {

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

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

  576. 

  577.             try {

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

  579.             } CARLA_SAFE_EXCEPTION("fluid_synth_program_select")

  580. 

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

  582.         }

  583. 

  584.         CarlaPlugin::setMidiProgramRT(uindex, sendCallbackLater);

  585.     }

  586. 

  587.     // -------------------------------------------------------------------

  588.     // Set ui stuff

  589. 

  590.     // nothing

  591. 

  592.     // -------------------------------------------------------------------

  593.     // Plugin state

  594. 

  595.     void reload() override

  596.     {

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

  598.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

  600. 

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

  602. 

  603.         // Safely disable plugin for reload

  604.         const ScopedDisabler sd(this);

  605. 

  606.         if (pData->active)

  607.             deactivate();

  608. 

  609.         clearBuffers();

  610. 

  611.         uint32_t aOuts, params;

  612.         aOuts  = kUse16Outs ? 32 : 2;

  613.         params = FluidSynthParametersMax;

  614. 

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

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

  617. 

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

  619.         CarlaString portName;

  620. 

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

  622.         // Audio Outputs

  623. 

  624.         if (kUse16Outs)

  625.         {

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

  627.             {

  628.                 portName.clear();

  629. 

  630.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  631.                 {

  632.                     portName  = pData->name;

  633.                     portName += ":";

  634.                 }

  635. 

  636.                 portName += "out-";

  637. 

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

  639.                     portName += "0";

  640. 

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

  642. 

  643.                 if (i % 2 == 0)

  644.                     portName += "L";

  645.                 else

  646.                     portName += "R";

  647. 

  648.                 portName.truncate(portNameSize);

  649. 

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

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

  652.             }

  653. 

  654.             fAudio16Buffers = new float*[aOuts];

  655. 

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

  657.                 fAudio16Buffers[i] = nullptr;

  658.         }

  659.         else

  660.         {

  661.             // out-left

  662.             portName.clear();

  663. 

  664.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  665.             {

  666.                 portName  = pData->name;

  667.                 portName += ":";

  668.             }

  669. 

  670.             portName += "out-left";

  671.             portName.truncate(portNameSize);

  672. 

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

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

  675. 

  676.             // out-right

  677.             portName.clear();

  678. 

  679.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  680.             {

  681.                 portName  = pData->name;

  682.                 portName += ":";

  683.             }

  684. 

  685.             portName += "out-right";

  686.             portName.truncate(portNameSize);

  687. 

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

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

  690.         }

  691. 

  692.         // ---------------------------------------

  693.         // Event Input

  694. 

  695.         {

  696.             portName.clear();

  697. 

  698.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  699.             {

  700.                 portName  = pData->name;

  701.                 portName += ":";

  702.             }

  703. 

  704.             portName += "events-in";

  705.             portName.truncate(portNameSize);

  706. 

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

  708.         }

  709. 

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

  711.         // Event Output

  712. 

  713.         {

  714.             portName.clear();

  715. 

  716.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  717.             {

  718.                 portName  = pData->name;

  719.                 portName += ":";

  720.             }

  721. 

  722.             portName += "events-out";

  723.             portName.truncate(portNameSize);

  724. 

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

  726.         }

  727. 

  728.         // ---------------------------------------

  729.         // Parameters

  730. 

  731.         {

  732.             int j;

  733. 

  734.             // ----------------------

  735.             j = FluidSynthReverbOnOff;

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

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

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

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

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

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

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

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

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

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

  746. 

  747.             // ----------------------

  748.             j = FluidSynthReverbRoomSize;

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

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

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

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

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

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

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

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

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

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

  759. 

  760.             // ----------------------

  761.             j = FluidSynthReverbDamp;

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

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

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

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

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

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

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

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

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

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

  772. 

  773.             // ----------------------

  774.             j = FluidSynthReverbLevel;

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

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

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

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

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

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

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

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

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

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

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

  786. 

  787.             // ----------------------

  788.             j = FluidSynthReverbWidth;

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

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

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

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

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

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

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

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

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

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

  799. 

  800.             // ----------------------

  801.             j = FluidSynthChorusOnOff;

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

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

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

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

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

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

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

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

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

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

  812. 

  813.             // ----------------------

  814.             j = FluidSynthChorusNr;

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

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

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

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

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

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

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

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

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

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

  825. 

  826.             // ----------------------

  827.             j = FluidSynthChorusLevel;

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

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

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

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

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

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

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

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

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

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

  838. 

  839.             // ----------------------

  840.             j = FluidSynthChorusSpeedHz;

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

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

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

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

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

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

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

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

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

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

  851. 

  852.             // ----------------------

  853.             j = FluidSynthChorusDepthMs;

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

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

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

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

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

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

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

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

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

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

  864. 

  865.             // ----------------------

  866.             j = FluidSynthChorusType;

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

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

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

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

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

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

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

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

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

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

  877. 

  878.             // ----------------------

  879.             j = FluidSynthPolyphony;

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

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

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

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

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

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

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

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

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

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

  890. 

  891.             // ----------------------

  892.             j = FluidSynthInterpolation;

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

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

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

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

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

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

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

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

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

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

  903. 

  904.             // ----------------------

  905.             j = FluidSynthVoiceCount;

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

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

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

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

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

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

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

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

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

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

  916. 

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

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

  919.         }

  920. 

  921.         // ---------------------------------------

  922. 

  923.         // plugin hints

  924.         pData->hints  = 0x0;

  925.         pData->hints |= PLUGIN_IS_SYNTH;

  926.         pData->hints |= PLUGIN_CAN_VOLUME;

  927.         pData->hints |= PLUGIN_USES_MULTI_PROGS;

  928. 

  929.         if (! kUse16Outs)

  930.             pData->hints |= PLUGIN_CAN_BALANCE;

  931. 

  932.         // extra plugin hints

  933.         pData->extraHints  = 0x0;

  934.         pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  935. 

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

  937.         reloadPrograms(true);

  938. 

  939.         if (pData->active)

  940.             activate();

  941. 

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

  943.     }

  944. 

  945.     void reloadPrograms(const bool doInit) override

  946.     {

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

  948. 

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

  950.         bool hasDrums = false;

  951.         uint32_t drumIndex, drumProg;

  952.         drumIndex = drumProg = 0;

  953. 

  954.         // Delete old programs

  955.         pData->midiprog.clear();

  956. 

  957.         // Query new programs

  958.         uint32_t count = 0;

  959. 

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

  961.         {

  962. #if FLUIDSYNTH_VERSION_MAJOR < 2

  963.             fluid_preset_t f_preset;

  964. 

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

  966.             f_sfont->iteration_start(f_sfont);

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

  968.                 ++count;

  969. 

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

  971.             CARLA_SAFE_ASSERT_RETURN(count > 0,);

  972. 

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

  974. 

  975.             // Update data

  976.             int tmp;

  977.             uint32_t i = 0;

  978.             f_sfont->iteration_start(f_sfont);

  979. 

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

  981.             {

  982.                 CARLA_SAFE_ASSERT_BREAK(i < count);

  983. 

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

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

  986. 

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

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

  989. 

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

  991. #else

  992.             fluid_preset_t* f_preset;

  993. 

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

  995.             fluid_sfont_iteration_start(f_sfont);

  996.             for (; fluid_sfont_iteration_next(f_sfont);)

  997.                 ++count;

  998. 

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

  1000.             CARLA_SAFE_ASSERT_RETURN(count > 0,);

  1001. 

  1002.             pData->midiprog.createNew(count);

  1003. 

  1004.             // Update data

  1005.             int tmp;

  1006.             uint32_t i = 0;

  1007.             fluid_sfont_iteration_start(f_sfont);

  1008. 

  1009.             for (; (f_preset = fluid_sfont_iteration_next(f_sfont));)

  1010.             {

  1011.                 CARLA_SAFE_ASSERT_BREAK(i < count);

  1012. 

  1013.                 tmp = fluid_preset_get_banknum(f_preset);

  1014.                 pData->midiprog.data[i].bank = (tmp >= 0) ? static_cast<uint32_t>(tmp) : 0;

  1015. 

  1016.                 tmp = fluid_preset_get_num(f_preset);

  1017.                 pData->midiprog.data[i].program = (tmp >= 0) ? static_cast<uint32_t>(tmp) : 0;

  1018. 

  1019.                 pData->midiprog.data[i].name = carla_strdup(fluid_preset_get_name(f_preset));

  1020. #endif

  1021. 

  1022.                 if (pData->midiprog.data[i].bank == 128 && ! hasDrums)

  1023.                 {

  1024.                     hasDrums  = true;

  1025.                     drumIndex = i;

  1026.                     drumProg  = pData->midiprog.data[i].program;

  1027.                 }

  1028. 

  1029.                 ++i;

  1030.             }

  1031.         }

  1032.         else

  1033.         {

  1034.             // failing means 0 midi-programs, it shouldn't happen!

  1035.             carla_safe_assert("fluid_sfont_t* const f_sfont = fluid_synth_get_sfont_by_id(fSynth, fSynthId)", __FILE__, __LINE__);

  1036.             return;

  1037.         }

  1038. 

  1039.         if (doInit)

  1040.         {

  1041.             fluid_synth_program_reset(fSynth);

  1042. 

  1043.             // select first program, or 128 for ch10

  1044.             for (int i=0; i < MAX_MIDI_CHANNELS && i != 9; ++i)

  1045.             {

  1046.                 fluid_synth_set_channel_type(fSynth, i, CHANNEL_TYPE_MELODIC);

  1047.                 fluid_synth_program_select(fSynth, i, fSynthId, pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1048. 

  1049.                 fCurMidiProgs[i] = 0;

  1050.             }

  1051. 

  1052.             if (hasDrums)

  1053.             {

  1054.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_DRUM);

  1055.                 fluid_synth_program_select(fSynth, 9, fSynthId, 128, drumProg);

  1056. 

  1057.                 fCurMidiProgs[9] = static_cast<int32_t>(drumIndex);

  1058.             }

  1059.             else

  1060.             {

  1061.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_MELODIC);

  1062.                 fluid_synth_program_select(fSynth, 9, fSynthId, pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1063. 

  1064.                 fCurMidiProgs[9] = 0;

  1065.             }

  1066. 

  1067.             pData->midiprog.current = 0;

  1068.         }

  1069.         else

  1070.         {

  1071.             pData->engine->callback(true, true, ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0, 0.0f, nullptr);

  1072.         }

  1073.     }

  1074. 

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

  1076.     // Plugin processing

  1077. 

  1078.     void process(const float** const, float** const audioOut, const float** const, float** const, const uint32_t frames) override

  1079.     {

  1080.         // --------------------------------------------------------------------------------------------------------

  1081.         // Check if active

  1082. 

  1083.         if (! pData->active)

  1084.         {

  1085.             // disable any output sound

  1086.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1087.                 carla_zeroFloats(audioOut[i], frames);

  1088.             return;

  1089.         }

  1090. 

  1091.         // --------------------------------------------------------------------------------------------------------

  1092.         // Check if needs reset

  1093. 

  1094.         if (pData->needsReset)

  1095.         {

  1096.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1097.             {

  1098.                 for (int i=0; i < MAX_MIDI_CHANNELS; ++i)

  1099.                 {

  1100.                     fluid_synth_all_notes_off(fSynth, i);

  1101.                     fluid_synth_all_sounds_off(fSynth, i);

  1102.                 }

  1103.             }

  1104.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1105.             {

  1106.                 for (int i=0; i < MAX_MIDI_NOTE; ++i)

  1107.                     fluid_synth_noteoff(fSynth, pData->ctrlChannel, i);

  1108.             }

  1109. 

  1110.             pData->needsReset = false;

  1111.         }

  1112. 

  1113.         // --------------------------------------------------------------------------------------------------------

  1114.         // Event Input and Processing

  1115. 

  1116.         {

  1117.             // ----------------------------------------------------------------------------------------------------

  1118.             // MIDI Input (External)

  1119. 

  1120.             if (pData->extNotes.mutex.tryLock())

  1121.             {

  1122.                 for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin2(); it.valid(); it.next())

  1123.                 {

  1124.                     const ExternalMidiNote& note(it.getValue(kExternalMidiNoteFallback));

  1125.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1126. 

  1127.                     if (note.velo > 0)

  1128.                         fluid_synth_noteon(fSynth, note.channel, note.note, note.velo);

  1129.                     else

  1130.                         fluid_synth_noteoff(fSynth,note.channel, note.note);

  1131.                 }

  1132. 

  1133.                 pData->extNotes.data.clear();

  1134.                 pData->extNotes.mutex.unlock();

  1135. 

  1136.             } // End of MIDI Input (External)

  1137. 

  1138.             // ----------------------------------------------------------------------------------------------------

  1139.             // Event Input (System)

  1140. 

  1141. #ifndef BUILD_BRIDGE

  1142.             bool allNotesOffSent = false;

  1143. #endif

  1144.             uint32_t timeOffset = 0;

  1145. 

  1146.             uint32_t nextBankIds[MAX_MIDI_CHANNELS] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 };

  1147. 

  1148.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1149.                 nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1150. 

  1151.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1152.             {

  1153.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1154. 

  1155.                 uint32_t eventTime = event.time;

  1156.                 CARLA_SAFE_ASSERT_UINT2_CONTINUE(eventTime < frames, eventTime, frames);

  1157. 

  1158.                 if (eventTime < timeOffset)

  1159.                 {

  1160.                     carla_stderr2("Timing error, eventTime:%u < timeOffset:%u for '%s'",

  1161.                                   eventTime, timeOffset, pData->name);

  1162.                     eventTime = timeOffset;

  1163.                 }

  1164.                 else if (eventTime > timeOffset)

  1165.                 {

  1166.                     if (processSingle(audioOut, eventTime - timeOffset, timeOffset))

  1167.                     {

  1168.                         timeOffset = eventTime;

  1169. 

  1170.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1171.                             nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1172.                     }

  1173.                 }

  1174. 

  1175.                 // Control change

  1176.                 switch (event.type)

  1177.                 {

  1178.                 case kEngineEventTypeNull:

  1179.                     break;

  1180. 

  1181.                 case kEngineEventTypeControl:

  1182.                 {

  1183.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1184. 

  1185.                     switch (ctrlEvent.type)

  1186.                     {

  1187.                     case kEngineControlEventTypeNull:

  1188.                         break;

  1189. 

  1190.                     case kEngineControlEventTypeParameter:

  1191.                     {

  1192. #ifndef BUILD_BRIDGE

  1193.                         // Control backend stuff

  1194.                         if (event.channel == pData->ctrlChannel)

  1195.                         {

  1196.                             float value;

  1197. 

  1198.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1199.                             {

  1200.                                 value = ctrlEvent.value;

  1201.                                 setDryWetRT(value, true);

  1202.                             }

  1203. 

  1204.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1205.                             {

  1206.                                 value = ctrlEvent.value*127.0f/100.0f;

  1207.                                 setVolumeRT(value, true);

  1208.                             }

  1209. 

  1210.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1211.                             {

  1212.                                 float left, right;

  1213.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1214. 

  1215.                                 if (value < 0.0f)

  1216.                                 {

  1217.                                     left  = -1.0f;

  1218.                                     right = (value*2.0f)+1.0f;

  1219.                                 }

  1220.                                 else if (value > 0.0f)

  1221.                                 {

  1222.                                     left  = (value*2.0f)-1.0f;

  1223.                                     right = 1.0f;

  1224.                                 }

  1225.                                 else

  1226.                                 {

  1227.                                     left  = -1.0f;

  1228.                                     right = 1.0f;

  1229.                                 }

  1230. 

  1231.                                 setBalanceLeftRT(left, true);

  1232.                                 setBalanceRightRT(right, true);

  1233.                             }

  1234.                         }

  1235. #endif

  1236.                         // Control plugin parameters

  1237.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1238.                         {

  1239.                             if (pData->param.data[k].midiChannel != event.channel)

  1240.                                 continue;

  1241.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1242.                                 continue;

  1243.                             if (pData->param.data[k].hints != PARAMETER_INPUT)

  1244.                                 continue;

  1245.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1246.                                 continue;

  1247. 

  1248.                             float value;

  1249. 

  1250.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1251.                             {

  1252.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1253.                             }

  1254.                             else

  1255.                             {

  1256.                                 if (pData->param.data[k].hints & PARAMETER_IS_LOGARITHMIC)

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

  1258.                                 else

  1259.                                     value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1260. 

  1261.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1262.                                     value = std::rint(value);

  1263.                             }

  1264. 

  1265.                             setParameterValueRT(k, value, true);

  1266.                         }

  1267. 

  1268.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param < MAX_MIDI_CONTROL)

  1269.                         {

  1270.                             fluid_synth_cc(fSynth, event.channel, ctrlEvent.param, int(ctrlEvent.value*127.0f));

  1271.                         }

  1272.                         break;

  1273.                     }

  1274. 

  1275.                     case kEngineControlEventTypeMidiBank:

  1276.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1277.                             nextBankIds[event.channel] = ctrlEvent.param;

  1278.                         break;

  1279. 

  1280.                     case kEngineControlEventTypeMidiProgram:

  1281.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1282.                         {

  1283.                             const uint32_t bankId(nextBankIds[event.channel]);

  1284.                             const uint32_t progId(ctrlEvent.param);

  1285. 

  1286.                             // TODO int32_t midiprog.find(bank, prog)

  1287.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1288.                             {

  1289.                                 if (pData->midiprog.data[k].bank == bankId && pData->midiprog.data[k].program == progId)

  1290.                                 {

  1291.                                     fluid_synth_program_select(fSynth, event.channel, fSynthId, bankId, progId);

  1292.                                     fCurMidiProgs[event.channel] = static_cast<int32_t>(k);

  1293. 

  1294.                                     if (event.channel == pData->ctrlChannel)

  1295.                                     {

  1296.                                         pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange,

  1297.                                                                true,

  1298.                                                                static_cast<int32_t>(k),

  1299.                                                                0, 0, 0.0f);

  1300.                                     }

  1301. 

  1302.                                     break;

  1303.                                 }

  1304.                             }

  1305.                         }

  1306.                         break;

  1307. 

  1308.                     case kEngineControlEventTypeAllSoundOff:

  1309.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1310.                             fluid_synth_all_sounds_off(fSynth, event.channel);

  1311.                         break;

  1312. 

  1313.                     case kEngineControlEventTypeAllNotesOff:

  1314.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1315.                         {

  1316. #ifndef BUILD_BRIDGE

  1317.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1318.                             {

  1319.                                 allNotesOffSent = true;

  1320.                                 postponeRtAllNotesOff();

  1321.                             }

  1322. #endif

  1323. 

  1324.                             fluid_synth_all_notes_off(fSynth, event.channel);

  1325.                         }

  1326.                         break;

  1327.                     }

  1328. 

  1329.                     break;

  1330.                 }

  1331. 

  1332.                 case kEngineEventTypeMidi: {

  1333.                     const EngineMidiEvent& midiEvent(event.midi);

  1334. 

  1335.                     if (midiEvent.size > EngineMidiEvent::kDataSize)

  1336.                         continue;

  1337. 

  1338.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1339. 

  1340.                     // Fix bad note-off

  1341.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1342.                         status = MIDI_STATUS_NOTE_OFF;

  1343. 

  1344.                     switch (status)

  1345.                     {

  1346.                     case MIDI_STATUS_NOTE_OFF: {

  1347.                         const uint8_t note = midiEvent.data[1];

  1348. 

  1349.                         fluid_synth_noteoff(fSynth, event.channel, note);

  1350. 

  1351.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, true, event.channel, note, 0, 0.0f);

  1352.                         break;

  1353.                     }

  1354. 

  1355.                     case MIDI_STATUS_NOTE_ON: {

  1356.                         const uint8_t note = midiEvent.data[1];

  1357.                         const uint8_t velo = midiEvent.data[2];

  1358. 

  1359.                         fluid_synth_noteon(fSynth, event.channel, note, velo);

  1360. 

  1361.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, true, event.channel, note, velo, 0.0f);

  1362.                         break;

  1363.                     }

  1364. 

  1365.                     case MIDI_STATUS_POLYPHONIC_AFTERTOUCH:

  1366.                         if (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH)

  1367.                         {

  1368.                             //const uint8_t note     = midiEvent.data[1];

  1369.                             //const uint8_t pressure = midiEvent.data[2];

  1370. 

  1371.                             // not in fluidsynth API

  1372.                         }

  1373.                         break;

  1374. 

  1375.                     case MIDI_STATUS_CONTROL_CHANGE:

  1376.                         if (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1377.                         {

  1378.                             const uint8_t control = midiEvent.data[1];

  1379.                             const uint8_t value   = midiEvent.data[2];

  1380. 

  1381.                             fluid_synth_cc(fSynth, event.channel, control, value);

  1382.                         }

  1383.                         break;

  1384. 

  1385.                     case MIDI_STATUS_CHANNEL_PRESSURE:

  1386.                         if (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE)

  1387.                         {

  1388.                             const uint8_t pressure = midiEvent.data[1];

  1389. 

  1390.                             fluid_synth_channel_pressure(fSynth, event.channel, pressure);;

  1391.                         }

  1392.                         break;

  1393. 

  1394.                     case MIDI_STATUS_PITCH_WHEEL_CONTROL:

  1395.                         if (pData->options & PLUGIN_OPTION_SEND_PITCHBEND)

  1396.                         {

  1397.                             const uint8_t lsb = midiEvent.data[1];

  1398.                             const uint8_t msb = midiEvent.data[2];

  1399.                             const int   value = ((msb << 7) | lsb);

  1400. 

  1401.                             fluid_synth_pitch_bend(fSynth, event.channel, value);

  1402.                         }

  1403.                         break;

  1404. 

  1405.                     default:

  1406.                         continue;

  1407.                         break;

  1408.                     } // switch (status)

  1409.                 } break;

  1410.                 } // switch (event.type)

  1411.             }

  1412. 

  1413.             pData->postRtEvents.trySplice();

  1414. 

  1415.             if (frames > timeOffset)

  1416.                 processSingle(audioOut, frames - timeOffset, timeOffset);

  1417. 

  1418.         } // End of Event Input and Processing

  1419. 

  1420. #ifndef BUILD_BRIDGE

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

  1422.         // Control Output

  1423. 

  1424.         {

  1425.             uint32_t k = FluidSynthVoiceCount;

  1426.             fParamBuffers[k] = float(fluid_synth_get_active_voice_count(fSynth));

  1427.             pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1428. 

  1429.             if (pData->param.data[k].midiCC > 0)

  1430.             {

  1431.                 float value(pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]));

  1432.                 pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), value);

  1433.             }

  1434. 

  1435.         } // End of Control Output

  1436. #endif

  1437.     }

  1438. 

  1439.     bool processSingle(float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1440.     {

  1441.         CARLA_SAFE_ASSERT_RETURN(outBuffer != nullptr, false);

  1442.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1443. 

  1444.         // --------------------------------------------------------------------------------------------------------

  1445.         // Try lock, silence otherwise

  1446. 

  1447. #ifndef STOAT_TEST_BUILD

  1448.         if (pData->engine->isOffline())

  1449.         {

  1450.             pData->singleMutex.lock();

  1451.         }

  1452.         else

  1453. #endif

  1454.         if (! pData->singleMutex.tryLock())

  1455.         {

  1456.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1457.             {

  1458.                 for (uint32_t k=0; k < frames; ++k)

  1459.                     outBuffer[i][k+timeOffset] = 0.0f;

  1460.             }

  1461. 

  1462.             return false;

  1463.         }

  1464. 

  1465.         // --------------------------------------------------------------------------------------------------------

  1466.         // Fill plugin buffers and Run plugin

  1467. 

  1468.         if (kUse16Outs)

  1469.         {

  1470.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1471.                 carla_zeroFloats(fAudio16Buffers[i], frames);

  1472. 

  1473.             // FIXME use '32' or '16' instead of outs

  1474.             fluid_synth_process(fSynth, static_cast<int>(frames),

  1475.                                 0, nullptr,

  1476.                                 static_cast<int>(pData->audioOut.count), fAudio16Buffers);

  1477.         }

  1478.         else

  1479.         {

  1480.             fluid_synth_write_float(fSynth, static_cast<int>(frames),

  1481.                                     outBuffer[0] + timeOffset, 0, 1,

  1482.                                     outBuffer[1] + timeOffset, 0, 1);

  1483.         }

  1484. 

  1485. #ifndef BUILD_BRIDGE

  1486.         // --------------------------------------------------------------------------------------------------------

  1487.         // Post-processing (volume and balance)

  1488. 

  1489.         {

  1490.             // note - balance not possible with kUse16Outs, so we can safely skip fAudioOutBuffers

  1491.             const bool doVolume  = (pData->hints & PLUGIN_CAN_VOLUME) != 0 && carla_isNotEqual(pData->postProc.volume, 1.0f);

  1492.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_isEqual(pData->postProc.balanceLeft, -1.0f) && carla_isEqual(pData->postProc.balanceRight, 1.0f));

  1493. 

  1494.             float oldBufLeft[doBalance ? frames : 1];

  1495. 

  1496.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1497.             {

  1498.                 // Balance

  1499.                 if (doBalance)

  1500.                 {

  1501.                     if (i % 2 == 0)

  1502.                         carla_copyFloats(oldBufLeft, outBuffer[i]+timeOffset, frames);

  1503. 

  1504.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1505.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1506. 

  1507.                     for (uint32_t k=0; k < frames; ++k)

  1508.                     {

  1509.                         if (i % 2 == 0)

  1510.                         {

  1511.                             // left

  1512.                             outBuffer[i][k+timeOffset]  = oldBufLeft[k]                * (1.0f - balRangeL);

  1513.                             outBuffer[i][k+timeOffset] += outBuffer[i+1][k+timeOffset] * (1.0f - balRangeR);

  1514.                         }

  1515.                         else

  1516.                         {

  1517.                             // right

  1518.                             outBuffer[i][k+timeOffset]  = outBuffer[i][k+timeOffset] * balRangeR;

  1519.                             outBuffer[i][k+timeOffset] += oldBufLeft[k]              * balRangeL;

  1520.                         }

  1521.                     }

  1522.                 }

  1523. 

  1524.                 // Volume

  1525.                 if (kUse16Outs)

  1526.                 {

  1527.                     for (uint32_t k=0; k < frames; ++k)

  1528.                         outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k] * pData->postProc.volume;

  1529.                 }

  1530.                 else if (doVolume)

  1531.                 {

  1532.                     for (uint32_t k=0; k < frames; ++k)

  1533.                         outBuffer[i][k+timeOffset] *= pData->postProc.volume;

  1534.                 }

  1535.             }

  1536. 

  1537.         } // End of Post-processing

  1538. #else

  1539.         if (kUse16Outs)

  1540.         {

  1541.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1542.             {

  1543.                 for (uint32_t k=0; k < frames; ++k)

  1544.                     outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k];

  1545.             }

  1546.         }

  1547. #endif

  1548. 

  1549.         // --------------------------------------------------------------------------------------------------------

  1550. 

  1551.         pData->singleMutex.unlock();

  1552.         return true;

  1553.     }

  1554. 

  1555.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1556.     {

  1557.         if (! kUse16Outs)

  1558.             return;

  1559. 

  1560.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1561.         {

  1562.             if (fAudio16Buffers[i] != nullptr)

  1563.                 delete[] fAudio16Buffers[i];

  1564.             fAudio16Buffers[i] = new float[newBufferSize];

  1565.         }

  1566.     }

  1567. 

  1568.     void sampleRateChanged(const double newSampleRate) override

  1569.     {

  1570.         CARLA_SAFE_ASSERT_RETURN(fSettings != nullptr,);

  1571.         fluid_settings_setnum(fSettings, "synth.sample-rate", newSampleRate);

  1572. 

  1573.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

  1574.         fluid_synth_set_sample_rate(fSynth, float(newSampleRate));

  1575.     }

  1576. 

  1577.     // -------------------------------------------------------------------

  1578.     // Plugin buffers

  1579. 

  1580.     void clearBuffers() noexcept override

  1581.     {

  1582.         carla_debug("CarlaPluginFluidSynth::clearBuffers() - start");

  1583. 

  1584.         if (fAudio16Buffers != nullptr)

  1585.         {

  1586.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1587.             {

  1588.                 if (fAudio16Buffers[i] != nullptr)

  1589.                 {

  1590.                     delete[] fAudio16Buffers[i];

  1591.                     fAudio16Buffers[i] = nullptr;

  1592.                 }

  1593.             }

  1594. 

  1595.             delete[] fAudio16Buffers;

  1596.             fAudio16Buffers = nullptr;

  1597.         }

  1598. 

  1599.         CarlaPlugin::clearBuffers();

  1600. 

  1601.         carla_debug("CarlaPluginFluidSynth::clearBuffers() - end");

  1602.     }

  1603. 

  1604.     // -------------------------------------------------------------------

  1605. 

  1606.     const void* getExtraStuff() const noexcept override

  1607.     {

  1608.         static const char xtrue[]  = "true";

  1609.         static const char xfalse[] = "false";

  1610.         return kUse16Outs ? xtrue : xfalse;

  1611.     }

  1612. 

  1613.     // -------------------------------------------------------------------

  1614. 

  1615.     bool init(const char* const filename, const char* const name, const char* const label, const uint options)

  1616.     {

  1617.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  1618. 

  1619.         // ---------------------------------------------------------------

  1620.         // first checks

  1621. 

  1622.         if (pData->client != nullptr)

  1623.         {

  1624.             pData->engine->setLastError("Plugin client is already registered");

  1625.             return false;

  1626.         }

  1627. 

  1628.         if (fSynth == nullptr)

  1629.         {

  1630.             pData->engine->setLastError("null synth");

  1631.             return false;

  1632.         }

  1633. 

  1634.         if (filename == nullptr || filename[0] == '\0')

  1635.         {

  1636.             pData->engine->setLastError("null filename");

  1637.             return false;

  1638.         }

  1639. 

  1640.         if (label == nullptr || label[0] == '\0')

  1641.         {

  1642.             pData->engine->setLastError("null label");

  1643.             return false;

  1644.         }

  1645. 

  1646.         // ---------------------------------------------------------------

  1647.         // open soundfont

  1648. 

  1649.         const int synthId(fluid_synth_sfload(fSynth, filename, 0));

  1650. 

  1651.         if (synthId < 0)

  1652.         {

  1653.             pData->engine->setLastError("Failed to load SoundFont file");

  1654.             return false;

  1655.         }

  1656. 

  1657.         fSynthId = static_cast<uint>(synthId);

  1658. 

  1659.         // ---------------------------------------------------------------

  1660.         // get info

  1661. 

  1662.         CarlaString label2(label);

  1663. 

  1664.         if (kUse16Outs && ! label2.endsWith(" (16 outs)"))

  1665.             label2 += " (16 outs)";

  1666. 

  1667.         fLabel          = label2.dup();

  1668.         pData->filename = carla_strdup(filename);

  1669. 

  1670.         if (name != nullptr && name[0] != '\0')

  1671.             pData->name = pData->engine->getUniquePluginName(name);

  1672.         else

  1673.             pData->name = pData->engine->getUniquePluginName(label);

  1674. 

  1675.         // ---------------------------------------------------------------

  1676.         // register client

  1677. 

  1678.         pData->client = pData->engine->addClient(this);

  1679. 

  1680.         if (pData->client == nullptr || ! pData->client->isOk())

  1681.         {

  1682.             pData->engine->setLastError("Failed to register plugin client");

  1683.             return false;

  1684.         }

  1685. 

  1686.         // ---------------------------------------------------------------

  1687.         // set default options

  1688. 

  1689.         pData->options  = 0x0;

  1690.         pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1691.         pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1692.         pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  1693.         pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1694. 

  1695.         if (options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1696.             pData->options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  1697. 

  1698.         return true;

  1699.     }

  1700. 

  1701. private:

  1702.     void initializeFluidDefaultsIfNeeded()

  1703.     {

  1704.         if (sFluidDefaultsStored)

  1705.             return;

  1706.         sFluidDefaultsStored = true;

  1707.         // reverb defaults

  1708.         sFluidDefaults[FluidSynthReverbOnOff] = 1.0f;

  1709. #if FLUIDSYNTH_VERSION_MAJOR < 2

  1710.         sFluidDefaults[FluidSynthReverbRoomSize] = FLUID_REVERB_DEFAULT_ROOMSIZE;

  1711.         sFluidDefaults[FluidSynthReverbDamp] = FLUID_REVERB_DEFAULT_DAMP;

  1712.         sFluidDefaults[FluidSynthReverbLevel] = FLUID_REVERB_DEFAULT_LEVEL;

  1713.         sFluidDefaults[FluidSynthReverbWidth] = FLUID_REVERB_DEFAULT_WIDTH;

  1714. #else

  1715.         double reverbVal;

  1716.         fluid_settings_getnum_default(fSettings, "synth.reverb.room-size", &reverbVal);

  1717.         sFluidDefaults[FluidSynthReverbRoomSize] = reverbVal;

  1718.         fluid_settings_getnum_default(fSettings, "synth.reverb.damp", &reverbVal);

  1719.         sFluidDefaults[FluidSynthReverbDamp] = reverbVal;

  1720.         fluid_settings_getnum_default(fSettings, "synth.reverb.level", &reverbVal);

  1721.         sFluidDefaults[FluidSynthReverbLevel] = reverbVal;

  1722.         fluid_settings_getnum_default(fSettings, "synth.reverb.width", &reverbVal);

  1723.         sFluidDefaults[FluidSynthReverbWidth] = reverbVal;

  1724. #endif

  1725. 

  1726.         // chorus defaults

  1727.         sFluidDefaults[FluidSynthChorusOnOff] = 1.0f;

  1728. #if FLUIDSYNTH_VERSION_MAJOR < 2

  1729.         sFluidDefaults[FluidSynthChorusNr] = FLUID_CHORUS_DEFAULT_N;

  1730.         sFluidDefaults[FluidSynthChorusLevel] = FLUID_CHORUS_DEFAULT_LEVEL;

  1731.         sFluidDefaults[FluidSynthChorusSpeedHz] = FLUID_CHORUS_DEFAULT_SPEED;

  1732.         sFluidDefaults[FluidSynthChorusDepthMs] = FLUID_CHORUS_DEFAULT_DEPTH;

  1733.         sFluidDefaults[FluidSynthChorusType] = FLUID_CHORUS_DEFAULT_TYPE;

  1734. #else

  1735.         double chorusVal;

  1736.         fluid_settings_getnum_default(fSettings, "synth.chorus.nr", &chorusVal);

  1737.         sFluidDefaults[FluidSynthChorusNr] = chorusVal;

  1738.         fluid_settings_getnum_default(fSettings, "synth.chorus.level", &chorusVal);

  1739.         sFluidDefaults[FluidSynthChorusLevel] = chorusVal;

  1740.         fluid_settings_getnum_default(fSettings, "synth.chorus.speed", &chorusVal);

  1741.         sFluidDefaults[FluidSynthChorusSpeedHz] = chorusVal;

  1742.         fluid_settings_getnum_default(fSettings, "synth.chorus.depth", &chorusVal);

  1743.         sFluidDefaults[FluidSynthChorusDepthMs] = chorusVal;

  1744.         // There is no settings for chorus default type

  1745.         sFluidDefaults[FluidSynthChorusType] = (float)fluid_synth_get_chorus_type(fSynth);

  1746. #endif

  1747. 

  1748.         // misc. defaults

  1749.         sFluidDefaults[FluidSynthInterpolation] = FLUID_INTERP_DEFAULT;

  1750.     }

  1751. 

  1752.     enum FluidSynthParameters {

  1753.         FluidSynthReverbOnOff    = 0,

  1754.         FluidSynthReverbRoomSize = 1,

  1755.         FluidSynthReverbDamp     = 2,

  1756.         FluidSynthReverbLevel    = 3,

  1757.         FluidSynthReverbWidth    = 4,

  1758.         FluidSynthChorusOnOff    = 5,

  1759.         FluidSynthChorusNr       = 6,

  1760.         FluidSynthChorusLevel    = 7,

  1761.         FluidSynthChorusSpeedHz  = 8,

  1762.         FluidSynthChorusDepthMs  = 9,

  1763.         FluidSynthChorusType     = 10,

  1764.         FluidSynthPolyphony      = 11,

  1765.         FluidSynthInterpolation  = 12,

  1766.         FluidSynthVoiceCount     = 13,

  1767.         FluidSynthParametersMax  = 14

  1768.     };

  1769. 

  1770.     const bool kUse16Outs;

  1771. 

  1772.     fluid_settings_t* fSettings;

  1773.     fluid_synth_t*    fSynth;

  1774.     uint              fSynthId;

  1775. 

  1776.     float** fAudio16Buffers;

  1777.     float   fParamBuffers[FluidSynthParametersMax];

  1778. 

  1779.     static bool  sFluidDefaultsStored;

  1780.     static float sFluidDefaults[FluidSynthParametersMax];

  1781. 

  1782.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  1783. 

  1784.     const char* fLabel;

  1785. 

  1786.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginFluidSynth)

  1787. };

  1788. 

  1789. bool CarlaPluginFluidSynth::sFluidDefaultsStored = false;

  1790. float CarlaPluginFluidSynth::sFluidDefaults[FluidSynthParametersMax] = {

  1791.     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,

  1792. };

  1793. 

  1794. CARLA_BACKEND_END_NAMESPACE

  1795. 

  1796. #endif // HAVE_FLUIDSYNTH

  1797. 

  1798. CARLA_BACKEND_START_NAMESPACE

  1799. 

  1800. // -------------------------------------------------------------------------------------------------------------------

  1801. 

  1802. CarlaPlugin* CarlaPlugin::newFluidSynth(const Initializer& init, const bool use16Outs)

  1803. {

  1804.     carla_debug("CarlaPlugin::newFluidSynth({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "}, %s)", init.engine, init.filename, init.name, init.label, init.uniqueId, bool2str(use16Outs));

  1805. 

  1806. #ifdef HAVE_FLUIDSYNTH

  1807.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && use16Outs)

  1808.     {

  1809.         init.engine->setLastError("Carla's rack mode can only work with Stereo modules,"

  1810.                                   "please choose the 2-channel only SoundFont version");

  1811.         return nullptr;

  1812.     }

  1813. 

  1814.     if (! fluid_is_soundfont(init.filename))

  1815.     {

  1816.         init.engine->setLastError("Requested file is not a valid SoundFont");

  1817.         return nullptr;

  1818.     }

  1819. 

  1820.     CarlaPluginFluidSynth* const plugin(new CarlaPluginFluidSynth(init.engine, init.id,  use16Outs));

  1821. 

  1822.     if (! plugin->init(init.filename, init.name, init.label, init.options))

  1823.     {

  1824.         delete plugin;

  1825.         return nullptr;

  1826.     }

  1827. 

  1828.     return plugin;

  1829. #else

  1830.     init.engine->setLastError("fluidsynth support not available");

  1831.     return nullptr;

  1832. 

  1833.     // unused

  1834.     (void)use16Outs;

  1835. #endif

  1836. }

  1837. 

  1838. // -------------------------------------------------------------------------------------------------------------------

  1839. 

  1840. CARLA_BACKEND_END_NAMESPACE