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Carla/source/backend/plugin/CarlaPluginFluidSynth.cpp

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  1. /*

  2.  * Carla FluidSynth Plugin

  3.  * Copyright (C) 2011-2020 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 "CarlaBackendUtils.hpp"

  24. #include "CarlaMathUtils.hpp"

  25. 

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

  27. 

  28. #include <fluidsynth.h>

  29. 

  30. #define FLUID_DEFAULT_POLYPHONY 64

  31. 

  32. using water::String;

  33. using water::StringArray;

  34. 

  35. CARLA_BACKEND_START_NAMESPACE

  36. 

  37. // -------------------------------------------------------------------------------------------------------------------

  38. // Fallback data

  39. 

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

  41. 

  42. // -------------------------------------------------------------------------------------------------------------------

  43. 

  44. class CarlaPluginFluidSynth : public CarlaPlugin

  45. {

  46. public:

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

  48.         : CarlaPlugin(engine, id),

  49.           kUse16Outs(use16Outs),

  50.           fSettings(nullptr),

  51.           fSynth(nullptr),

  52.           fSynthId(0),

  53.           fAudio16Buffers(nullptr),

  54.           fLabel(nullptr)

  55.     {

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

  57. 

  58.         carla_zeroFloats(fParamBuffers, FluidSynthParametersMax);

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

  60. 

  61.         // create settings

  62.         fSettings = new_fluid_settings();

  63.         CARLA_SAFE_ASSERT_RETURN(fSettings != nullptr,);

  64. 

  65.         // define settings

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

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

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

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

  70.         fluid_settings_setint(fSettings, "synth.ladspa.active", 0);

  71.         fluid_settings_setint(fSettings, "synth.lock-memory", 1);

  72. #if FLUIDSYNTH_VERSION_MAJOR < 2

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

  74. #endif

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

  76. #ifdef DEBUG

  77.         fluid_settings_setint(fSettings, "synth.verbose", 1);

  78. #endif

  79. 

  80.         // create synth

  81.         fSynth = new_fluid_synth(fSettings);

  82.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

  83. 

  84.         initializeFluidDefaultsIfNeeded();

  85. 

  86. #if FLUIDSYNTH_VERSION_MAJOR < 2

  87.         fluid_synth_set_sample_rate(fSynth, static_cast<float>(pData->engine->getSampleRate()));

  88. #endif

  89. 

  90.         // set default values

  91.         fluid_synth_set_reverb_on(fSynth, 1);

  92.         fluid_synth_set_reverb(fSynth,

  93.                                sFluidDefaults[FluidSynthReverbRoomSize],

  94.                                sFluidDefaults[FluidSynthReverbDamp],

  95.                                sFluidDefaults[FluidSynthReverbWidth],

  96.                                sFluidDefaults[FluidSynthReverbLevel]);

  97. 

  98.         fluid_synth_set_chorus_on(fSynth, 1);

  99.         fluid_synth_set_chorus(fSynth,

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

  101.                                sFluidDefaults[FluidSynthChorusLevel],

  102.                                sFluidDefaults[FluidSynthChorusSpeedHz],

  103.                                sFluidDefaults[FluidSynthChorusDepthMs],

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

  105. 

  106.         fluid_synth_set_polyphony(fSynth, FLUID_DEFAULT_POLYPHONY);

  107.         fluid_synth_set_gain(fSynth, 1.0f);

  108. 

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

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

  111.     }

  112. 

  113.     ~CarlaPluginFluidSynth() override

  114.     {

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

  116. 

  117.         pData->singleMutex.lock();

  118.         pData->masterMutex.lock();

  119. 

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

  121.             pData->client->deactivate(true);

  122. 

  123.         if (pData->active)

  124.         {

  125.             deactivate();

  126.             pData->active = false;

  127.         }

  128. 

  129.         if (fSynth != nullptr)

  130.         {

  131.             delete_fluid_synth(fSynth);

  132.             fSynth = nullptr;

  133.         }

  134. 

  135.         if (fSettings != nullptr)

  136.         {

  137.             delete_fluid_settings(fSettings);

  138.             fSettings = nullptr;

  139.         }

  140. 

  141.         if (fLabel != nullptr)

  142.         {

  143.             delete[] fLabel;

  144.             fLabel = nullptr;

  145.         }

  146. 

  147.         clearBuffers();

  148.     }

  149. 

  150.     // -------------------------------------------------------------------

  151.     // Information (base)

  152. 

  153.     PluginType getType() const noexcept override

  154.     {

  155.         return PLUGIN_SF2;

  156.     }

  157. 

  158.     PluginCategory getCategory() const noexcept override

  159.     {

  160.         return PLUGIN_CATEGORY_SYNTH;

  161.     }

  162. 

  163.     // -------------------------------------------------------------------

  164.     // Information (count)

  165. 

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

  167.     {

  168.         switch (parameterId)

  169.         {

  170.         case FluidSynthChorusType:

  171.             return 2;

  172.         case FluidSynthInterpolation:

  173.             return 4;

  174.         default:

  175.             return 0;

  176.         }

  177.     }

  178. 

  179.     // -------------------------------------------------------------------

  180.     // Information (current data)

  181. 

  182.     // nothing

  183. 

  184.     // -------------------------------------------------------------------

  185.     // Information (per-plugin data)

  186. 

  187.     uint getOptionsAvailable() const noexcept override

  188.     {

  189.         uint options = 0x0;

  190. 

  191.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  192.         options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  193.         options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  194.         options |= PLUGIN_OPTION_SEND_PITCHBEND;

  195.         options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  196. 

  197.         return options;

  198.     }

  199. 

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

  201.     {

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

  203. 

  204.         return fParamBuffers[parameterId];

  205.     }

  206. 

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

  208.     {

  209.         switch (parameterId)

  210.         {

  211.         case FluidSynthChorusType:

  212.             switch (scalePointId)

  213.             {

  214.             case 0:

  215.                 return FLUID_CHORUS_MOD_SINE;

  216.             case 1:

  217.                 return FLUID_CHORUS_MOD_TRIANGLE;

  218.             default:

  219.                 return sFluidDefaults[FluidSynthChorusType];

  220.             }

  221.         case FluidSynthInterpolation:

  222.             switch (scalePointId)

  223.             {

  224.             case 0:

  225.                 return FLUID_INTERP_NONE;

  226.             case 1:

  227.                 return FLUID_INTERP_LINEAR;

  228.             case 2:

  229.                 return FLUID_INTERP_4THORDER;

  230.             case 3:

  231.                 return FLUID_INTERP_7THORDER;

  232.             default:

  233.                 return sFluidDefaults[FluidSynthInterpolation];

  234.             }

  235.         default:

  236.             return 0.0f;

  237.         }

  238.     }

  239. 

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

  241.     {

  242.         if (fLabel != nullptr)

  243.         {

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

  245.             return true;

  246.         }

  247. 

  248.         return CarlaPlugin::getLabel(strBuf);

  249.     }

  250. 

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

  252.     {

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

  254.         return true;

  255.     }

  256. 

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

  258.     {

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

  260.         return true;

  261.     }

  262. 

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

  264.     {

  265.         return getLabel(strBuf);

  266.     }

  267. 

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

  269.     {

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

  271. 

  272.         switch (parameterId)

  273.         {

  274.         case FluidSynthReverbOnOff:

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

  276.             return true;

  277.         case FluidSynthReverbRoomSize:

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

  279.             return true;

  280.         case FluidSynthReverbDamp:

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

  282.             return true;

  283.         case FluidSynthReverbLevel:

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

  285.             return true;

  286.         case FluidSynthReverbWidth:

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

  288.             return true;

  289.         case FluidSynthChorusOnOff:

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

  291.             return true;

  292.         case FluidSynthChorusNr:

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

  294.             return true;

  295.         case FluidSynthChorusLevel:

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

  297.             return true;

  298.         case FluidSynthChorusSpeedHz:

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

  300.             return true;

  301.         case FluidSynthChorusDepthMs:

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

  303.             return true;

  304.         case FluidSynthChorusType:

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

  306.             return true;

  307.         case FluidSynthPolyphony:

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

  309.             return true;

  310.         case FluidSynthInterpolation:

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

  312.             return true;

  313.         case FluidSynthVoiceCount:

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

  315.             return true;

  316.         }

  317. 

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

  319.     }

  320. 

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

  322.     {

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

  324. 

  325.         switch (parameterId)

  326.         {

  327.         case FluidSynthChorusSpeedHz:

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

  329.             return true;

  330.         case FluidSynthChorusDepthMs:

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

  332.             return true;

  333.         }

  334. 

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

  336.     }

  337. 

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

  339.     {

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

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

  342. 

  343.         switch (parameterId)

  344.         {

  345.         case FluidSynthChorusType:

  346.             switch (scalePointId)

  347.             {

  348.             case 0:

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

  350.                 return true;

  351.             case 1:

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

  353.                 return true;

  354.             }

  355.             break;

  356.         case FluidSynthInterpolation:

  357.             switch (scalePointId)

  358.             {

  359.             case 0:

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

  361.                 return true;

  362.             case 1:

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

  364.                 return true;

  365.             case 2:

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

  367.                 return true;

  368.             case 3:

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

  370.                 return true;

  371.             }

  372.             break;

  373.         }

  374. 

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

  376.     }

  377. 

  378.     // -------------------------------------------------------------------

  379.     // Set data (state)

  380. 

  381.     void prepareForSave(bool) override

  382.     {

  383.         char strBuf[STR_MAX+1];

  384.         std::snprintf(strBuf, STR_MAX, "%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i",

  385.                       fCurMidiProgs[0],  fCurMidiProgs[1],  fCurMidiProgs[2],  fCurMidiProgs[3],

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

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

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

  389. 

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

  391.     }

  392. 

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

  394.     // Set data (internal stuff)

  395. 

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

  397.     {

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

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

  400. 

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

  402.     }

  403. 

  404.     // -------------------------------------------------------------------

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

  406. 

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

  408.     {

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

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

  411. 

  412.         float fixedValue;

  413. 

  414.         {

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

  416.             fixedValue = setParameterValueInFluidSynth(parameterId, value);

  417. 

  418.         }

  419. 

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

  421.     }

  422. 

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

  424.     {

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

  426. 

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

  428.     }

  429. 

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

  431.     {

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

  433. 

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

  435.         fParamBuffers[parameterId] = fixedValue;

  436. 

  437.         switch (parameterId)

  438.         {

  439.         case FluidSynthReverbOnOff:

  440.             try {

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

  442.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_reverb_on")

  443.             break;

  444. 

  445.         case FluidSynthReverbRoomSize:

  446.         case FluidSynthReverbDamp:

  447.         case FluidSynthReverbLevel:

  448.         case FluidSynthReverbWidth:

  449.             try {

  450.                 fluid_synth_set_reverb(fSynth,

  451.                                        fParamBuffers[FluidSynthReverbRoomSize],

  452.                                        fParamBuffers[FluidSynthReverbDamp],

  453.                                        fParamBuffers[FluidSynthReverbWidth],

  454.                                        fParamBuffers[FluidSynthReverbLevel]);

  455.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_reverb")

  456.             break;

  457. 

  458.         case FluidSynthChorusOnOff:

  459.             try {

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

  461.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_chorus_on")

  462.             break;

  463. 

  464.         case FluidSynthChorusNr:

  465.         case FluidSynthChorusLevel:

  466.         case FluidSynthChorusSpeedHz:

  467.         case FluidSynthChorusDepthMs:

  468.         case FluidSynthChorusType:

  469.             try {

  470.                 fluid_synth_set_chorus(fSynth,

  471.                                        static_cast<int>(fParamBuffers[FluidSynthChorusNr] + 0.5f),

  472.                                        fParamBuffers[FluidSynthChorusLevel],

  473.                                        fParamBuffers[FluidSynthChorusSpeedHz],

  474.                                        fParamBuffers[FluidSynthChorusDepthMs],

  475.                                        static_cast<int>(fParamBuffers[FluidSynthChorusType] + 0.5f));

  476.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_chorus")

  477.             break;

  478. 

  479.         case FluidSynthPolyphony:

  480.             try {

  481.                 fluid_synth_set_polyphony(fSynth, static_cast<int>(value + 0.5f));

  482.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_polyphony")

  483.             break;

  484. 

  485.         case FluidSynthInterpolation:

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

  487.             {

  488.                 try {

  489.                     fluid_synth_set_interp_method(fSynth, i, static_cast<int>(value + 0.5f));

  490.                 } CARLA_SAFE_EXCEPTION_BREAK("fluid_synth_set_interp_method")

  491.             }

  492.             break;

  493. 

  494.         default:

  495.             break;

  496.         }

  497. 

  498.         return fixedValue;

  499.     }

  500. 

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

  502.     {

  503.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

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

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

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

  508. 

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

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

  511. 

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

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

  514. 

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

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

  517. 

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

  519. 

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

  521.         {

  522.             uint8_t channel = 0;

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

  524.             {

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

  526. 

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

  528.                 {

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

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

  531. 

  532. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  533.                     fluid_synth_program_select(fSynth,

  534.                                                static_cast<int>(channel),

  535.                                                fSynthId,

  536.                                                static_cast<int>(bank),

  537.                                                static_cast<int>(program));

  538. #else

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

  540. #endif

  541.                     fCurMidiProgs[channel] = index;

  542. 

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

  544.                     {

  545.                         pData->midiprog.current = index;

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

  547.                                                 ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED,

  548.                                                 pData->id,

  549.                                                 index,

  550.                                                 0, 0, 0.0f, nullptr);

  551.                     }

  552.                 }

  553. 

  554.                 ++channel;

  555.             }

  556.             CARLA_SAFE_ASSERT(channel == MAX_MIDI_CHANNELS);

  557.         }

  558. 

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

  560.     }

  561. 

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

  563.     {

  564.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

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

  567. 

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

  569.         {

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

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

  572. 

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

  574. 

  575.             try {

  576. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  577.                 fluid_synth_program_select(fSynth, pData->ctrlChannel, fSynthId,

  578.                                            static_cast<int>(bank), static_cast<int>(program));

  579. #else

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

  581. #endif

  582.             } CARLA_SAFE_EXCEPTION("fluid_synth_program_select")

  583. 

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

  585.         }

  586. 

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

  588.     }

  589. 

  590.     // FIXME: this is never used

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

  592.     {

  593.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

  595. 

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

  597.         {

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

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

  600. 

  601.             try {

  602. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  603.                 fluid_synth_program_select(fSynth, pData->ctrlChannel, fSynthId,

  604.                                            static_cast<int>(bank), static_cast<int>(program));

  605. #else

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

  607. #endif

  608.             } CARLA_SAFE_EXCEPTION("fluid_synth_program_select")

  609. 

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

  611.         }

  612. 

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

  614.     }

  615. 

  616.     // -------------------------------------------------------------------

  617.     // Set ui stuff

  618. 

  619.     // nothing

  620. 

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

  622.     // Plugin state

  623. 

  624.     void reload() override

  625.     {

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

  627.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

  629. 

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

  631. 

  632.         // Safely disable plugin for reload

  633.         const ScopedDisabler sd(this);

  634. 

  635.         if (pData->active)

  636.             deactivate();

  637. 

  638.         clearBuffers();

  639. 

  640.         uint32_t aOuts, params;

  641.         aOuts  = kUse16Outs ? 32 : 2;

  642.         params = FluidSynthParametersMax;

  643. 

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

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

  646. 

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

  648.         CarlaString portName;

  649. 

  650.         // ---------------------------------------

  651.         // Audio Outputs

  652. 

  653.         if (kUse16Outs)

  654.         {

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

  656.             {

  657.                 portName.clear();

  658. 

  659.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  660.                 {

  661.                     portName  = pData->name;

  662.                     portName += ":";

  663.                 }

  664. 

  665.                 portName += "out-";

  666. 

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

  668.                     portName += "0";

  669. 

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

  671. 

  672.                 if (i % 2 == 0)

  673.                     portName += "L";

  674.                 else

  675.                     portName += "R";

  676. 

  677.                 portName.truncate(portNameSize);

  678. 

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

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

  681.             }

  682. 

  683.             fAudio16Buffers = new float*[aOuts];

  684. 

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

  686.                 fAudio16Buffers[i] = nullptr;

  687.         }

  688.         else

  689.         {

  690.             // out-left

  691.             portName.clear();

  692. 

  693.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  694.             {

  695.                 portName  = pData->name;

  696.                 portName += ":";

  697.             }

  698. 

  699.             portName += "out-left";

  700.             portName.truncate(portNameSize);

  701. 

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

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

  704. 

  705.             // out-right

  706.             portName.clear();

  707. 

  708.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  709.             {

  710.                 portName  = pData->name;

  711.                 portName += ":";

  712.             }

  713. 

  714.             portName += "out-right";

  715.             portName.truncate(portNameSize);

  716. 

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

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

  719.         }

  720. 

  721.         // ---------------------------------------

  722.         // Event Input

  723. 

  724.         {

  725.             portName.clear();

  726. 

  727.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  728.             {

  729.                 portName  = pData->name;

  730.                 portName += ":";

  731.             }

  732. 

  733.             portName += "events-in";

  734.             portName.truncate(portNameSize);

  735. 

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

  737.         }

  738. 

  739.         // ---------------------------------------

  740.         // Event Output

  741. 

  742.         {

  743.             portName.clear();

  744. 

  745.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  746.             {

  747.                 portName  = pData->name;

  748.                 portName += ":";

  749.             }

  750. 

  751.             portName += "events-out";

  752.             portName.truncate(portNameSize);

  753. 

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

  755.         }

  756. 

  757.         // ---------------------------------------

  758.         // Parameters

  759. 

  760.         {

  761.             int j;

  762. 

  763.             // ----------------------

  764.             j = FluidSynthReverbOnOff;

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

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

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

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

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

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

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

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

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

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

  775. 

  776.             // ----------------------

  777.             j = FluidSynthReverbRoomSize;

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

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

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

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

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

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

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

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

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

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

  788. 

  789.             // ----------------------

  790.             j = FluidSynthReverbDamp;

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

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

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

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

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

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

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

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

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

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

  801. 

  802.             // ----------------------

  803.             j = FluidSynthReverbLevel;

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

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

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

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

  808.             pData->param.data[j].mappedControlIndex = MIDI_CONTROL_REVERB_SEND_LEVEL;

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

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

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

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

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

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

  815. 

  816.             // ----------------------

  817.             j = FluidSynthReverbWidth;

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

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

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

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

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

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

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

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

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

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

  828. 

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

  830.             j = FluidSynthChorusOnOff;

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

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

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

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

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

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

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

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

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

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

  841. 

  842.             // ----------------------

  843.             j = FluidSynthChorusNr;

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

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

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

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

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

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

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

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

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

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

  854. 

  855.             // ----------------------

  856.             j = FluidSynthChorusLevel;

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

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

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

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

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

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

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

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

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

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

  867. 

  868.             // ----------------------

  869.             j = FluidSynthChorusSpeedHz;

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

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

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

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

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

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

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

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

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

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

  880. 

  881.             // ----------------------

  882.             j = FluidSynthChorusDepthMs;

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

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

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

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

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

  888. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  889.             pData->param.ranges[j].max = 256.0f;

  890. #else

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

  892. #endif

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

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

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

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

  897. 

  898.             // ----------------------

  899.             j = FluidSynthChorusType;

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

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

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

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

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

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

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

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

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

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

  910. 

  911.             // ----------------------

  912.             j = FluidSynthPolyphony;

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

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

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

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

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

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

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

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

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

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

  923. 

  924.             // ----------------------

  925.             j = FluidSynthInterpolation;

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

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

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

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

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

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

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

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

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

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

  936. 

  937.             // ----------------------

  938.             j = FluidSynthVoiceCount;

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

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

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

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

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

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

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

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

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

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

  949. 

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

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

  952.         }

  953. 

  954.         // ---------------------------------------

  955. 

  956.         // plugin hints

  957.         pData->hints  = 0x0;

  958.         pData->hints |= PLUGIN_IS_SYNTH;

  959.         pData->hints |= PLUGIN_CAN_VOLUME;

  960.         pData->hints |= PLUGIN_USES_MULTI_PROGS;

  961. 

  962.         if (! kUse16Outs)

  963.             pData->hints |= PLUGIN_CAN_BALANCE;

  964. 

  965.         // extra plugin hints

  966.         pData->extraHints  = 0x0;

  967.         pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  968. 

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

  970.         reloadPrograms(true);

  971. 

  972.         if (pData->active)

  973.             activate();

  974. 

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

  976.     }

  977. 

  978.     void reloadPrograms(const bool doInit) override

  979.     {

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

  981. 

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

  983.         bool hasDrums = false;

  984.         uint32_t drumIndex, drumProg;

  985.         drumIndex = drumProg = 0;

  986. 

  987.         // Delete old programs

  988.         pData->midiprog.clear();

  989. 

  990.         // Query new programs

  991.         uint32_t count = 0;

  992. 

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

  994.         {

  995. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  996.             fluid_preset_t* f_preset;

  997. 

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

  999.             fluid_sfont_iteration_start(f_sfont);

  1000.             for (; fluid_sfont_iteration_next(f_sfont);)

  1001.                 ++count;

  1002. 

  1003.             // sound kits must always have at least 1 midi-program

  1004.             CARLA_SAFE_ASSERT_RETURN(count > 0,);

  1005. 

  1006.             pData->midiprog.createNew(count);

  1007. 

  1008.             // Update data

  1009.             int tmp;

  1010.             uint32_t i = 0;

  1011.             fluid_sfont_iteration_start(f_sfont);

  1012. 

  1013.             for (; (f_preset = fluid_sfont_iteration_next(f_sfont));)

  1014.             {

  1015.                 CARLA_SAFE_ASSERT_BREAK(i < count);

  1016. 

  1017.                 tmp = fluid_preset_get_banknum(f_preset);

  1018.                 pData->midiprog.data[i].bank = (tmp >= 0) ? static_cast<uint32_t>(tmp) : 0;

  1019. 

  1020.                 tmp = fluid_preset_get_num(f_preset);

  1021.                 pData->midiprog.data[i].program = (tmp >= 0) ? static_cast<uint32_t>(tmp) : 0;

  1022. 

  1023.                 pData->midiprog.data[i].name = carla_strdup(fluid_preset_get_name(f_preset));

  1024. #else

  1025.             fluid_preset_t f_preset;

  1026. 

  1027.             // initial check to know how many midi-programs we have

  1028.             f_sfont->iteration_start(f_sfont);

  1029.             for (; f_sfont->iteration_next(f_sfont, &f_preset);)

  1030.                 ++count;

  1031. 

  1032.             // sound kits must always have at least 1 midi-program

  1033.             CARLA_SAFE_ASSERT_RETURN(count > 0,);

  1034. 

  1035.             pData->midiprog.createNew(count);

  1036. 

  1037.             // Update data

  1038.             int tmp;

  1039.             uint32_t i = 0;

  1040.             f_sfont->iteration_start(f_sfont);

  1041. 

  1042.             for (; f_sfont->iteration_next(f_sfont, &f_preset);)

  1043.             {

  1044.                 CARLA_SAFE_ASSERT_BREAK(i < count);

  1045. 

  1046.                 tmp = f_preset.get_banknum(&f_preset);

  1047.                 pData->midiprog.data[i].bank = (tmp >= 0) ? static_cast<uint32_t>(tmp) : 0;

  1048. 

  1049.                 tmp = f_preset.get_num(&f_preset);

  1050.                 pData->midiprog.data[i].program = (tmp >= 0) ? static_cast<uint32_t>(tmp) : 0;

  1051. 

  1052.                 pData->midiprog.data[i].name = carla_strdup(f_preset.get_name(&f_preset));

  1053. #endif

  1054. 

  1055.                 if (pData->midiprog.data[i].bank == 128 && ! hasDrums)

  1056.                 {

  1057.                     hasDrums  = true;

  1058.                     drumIndex = i;

  1059.                     drumProg  = pData->midiprog.data[i].program;

  1060.                 }

  1061. 

  1062.                 ++i;

  1063.             }

  1064.         }

  1065.         else

  1066.         {

  1067.             // failing means 0 midi-programs, it shouldn't happen!

  1068.             carla_safe_assert("fluid_sfont_t* const f_sfont = fluid_synth_get_sfont_by_id(fSynth, fSynthId)", __FILE__, __LINE__);

  1069.             return;

  1070.         }

  1071. 

  1072.         if (doInit)

  1073.         {

  1074.             fluid_synth_program_reset(fSynth);

  1075. 

  1076.             // select first program, or 128 for ch10

  1077.             for (int i=0; i < MAX_MIDI_CHANNELS && i != 9; ++i)

  1078.             {

  1079.                 fluid_synth_set_channel_type(fSynth, i, CHANNEL_TYPE_MELODIC);

  1080. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  1081.                 fluid_synth_program_select(fSynth, i, fSynthId,

  1082.                                            static_cast<int>(pData->midiprog.data[0].bank),

  1083.                                            static_cast<int>(pData->midiprog.data[0].program));

  1084. #else

  1085.                 fluid_synth_program_select(fSynth, i, fSynthId,

  1086.                                            pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1087. #endif

  1088.                 fCurMidiProgs[i] = 0;

  1089.             }

  1090. 

  1091.             if (hasDrums)

  1092.             {

  1093.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_DRUM);

  1094. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  1095.                 fluid_synth_program_select(fSynth, 9, fSynthId, 128, static_cast<int>(drumProg));

  1096. #else

  1097.                 fluid_synth_program_select(fSynth, 9, fSynthId, 128, drumProg);

  1098. #endif

  1099.                 fCurMidiProgs[9] = static_cast<int32_t>(drumIndex);

  1100.             }

  1101.             else

  1102.             {

  1103.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_MELODIC);

  1104. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  1105.                 fluid_synth_program_select(fSynth, 9, fSynthId,

  1106.                                            static_cast<int>(pData->midiprog.data[0].bank),

  1107.                                            static_cast<int>(pData->midiprog.data[0].program));

  1108. #else

  1109.                 fluid_synth_program_select(fSynth, 9, fSynthId,

  1110.                                            pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1111. #endif

  1112.                 fCurMidiProgs[9] = 0;

  1113.             }

  1114. 

  1115.             pData->midiprog.current = 0;

  1116.         }

  1117.         else

  1118.         {

  1119.             pData->engine->callback(true, true, ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0, 0.0f, nullptr);

  1120.         }

  1121.     }

  1122. 

  1123.     // -------------------------------------------------------------------

  1124.     // Plugin processing

  1125. 

  1126.     void process(const float* const* const, float** const audioOut,

  1127.                  const float* const*, float**, const uint32_t frames) override

  1128.     {

  1129.         // --------------------------------------------------------------------------------------------------------

  1130.         // Check if active

  1131. 

  1132.         if (! pData->active)

  1133.         {

  1134.             // disable any output sound

  1135.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1136.                 carla_zeroFloats(audioOut[i], frames);

  1137.             return;

  1138.         }

  1139. 

  1140.         // --------------------------------------------------------------------------------------------------------

  1141.         // Check if needs reset

  1142. 

  1143.         if (pData->needsReset)

  1144.         {

  1145.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1146.             {

  1147.                 for (int i=0; i < MAX_MIDI_CHANNELS; ++i)

  1148.                 {

  1149.                     fluid_synth_all_notes_off(fSynth, i);

  1150.                     fluid_synth_all_sounds_off(fSynth, i);

  1151.                 }

  1152.             }

  1153.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1154.             {

  1155.                 for (int i=0; i < MAX_MIDI_NOTE; ++i)

  1156.                     fluid_synth_noteoff(fSynth, pData->ctrlChannel, i);

  1157.             }

  1158. 

  1159.             pData->needsReset = false;

  1160.         }

  1161. 

  1162.         // --------------------------------------------------------------------------------------------------------

  1163.         // Event Input and Processing

  1164. 

  1165.         {

  1166.             // ----------------------------------------------------------------------------------------------------

  1167.             // MIDI Input (External)

  1168. 

  1169.             if (pData->extNotes.mutex.tryLock())

  1170.             {

  1171.                 for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin2(); it.valid(); it.next())

  1172.                 {

  1173.                     const ExternalMidiNote& note(it.getValue(kExternalMidiNoteFallback));

  1174.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1175. 

  1176.                     if (note.velo > 0)

  1177.                         fluid_synth_noteon(fSynth, note.channel, note.note, note.velo);

  1178.                     else

  1179.                         fluid_synth_noteoff(fSynth,note.channel, note.note);

  1180.                 }

  1181. 

  1182.                 pData->extNotes.data.clear();

  1183.                 pData->extNotes.mutex.unlock();

  1184. 

  1185.             } // End of MIDI Input (External)

  1186. 

  1187.             // ----------------------------------------------------------------------------------------------------

  1188.             // Event Input (System)

  1189. 

  1190. #ifndef BUILD_BRIDGE

  1191.             bool allNotesOffSent = false;

  1192. #endif

  1193.             uint32_t timeOffset = 0;

  1194. 

  1195.             uint32_t nextBankIds[MAX_MIDI_CHANNELS] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 };

  1196. 

  1197.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1198.                 nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1199. 

  1200.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1201.             {

  1202.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1203. 

  1204.                 uint32_t eventTime = event.time;

  1205.                 CARLA_SAFE_ASSERT_UINT2_CONTINUE(eventTime < frames, eventTime, frames);

  1206. 

  1207.                 if (eventTime < timeOffset)

  1208.                 {

  1209.                     carla_stderr2("Timing error, eventTime:%u < timeOffset:%u for '%s'",

  1210.                                   eventTime, timeOffset, pData->name);

  1211.                     eventTime = timeOffset;

  1212.                 }

  1213.                 else if (eventTime > timeOffset)

  1214.                 {

  1215.                     if (processSingle(audioOut, eventTime - timeOffset, timeOffset))

  1216.                     {

  1217.                         timeOffset = eventTime;

  1218. 

  1219.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1220.                             nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1221.                     }

  1222.                 }

  1223. 

  1224.                 // Control change

  1225.                 switch (event.type)

  1226.                 {

  1227.                 case kEngineEventTypeNull:

  1228.                     break;

  1229. 

  1230.                 case kEngineEventTypeControl:

  1231.                 {

  1232.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1233. 

  1234.                     switch (ctrlEvent.type)

  1235.                     {

  1236.                     case kEngineControlEventTypeNull:

  1237.                         break;

  1238. 

  1239.                     case kEngineControlEventTypeParameter:

  1240.                     {

  1241.                         float value;

  1242. 

  1243. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  1244.                         // Control backend stuff

  1245.                         if (event.channel == pData->ctrlChannel)

  1246.                         {

  1247.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1248.                             {

  1249.                                 value = ctrlEvent.value;

  1250.                                 setDryWetRT(value, true);

  1251.                             }

  1252. 

  1253.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1254.                             {

  1255.                                 value = ctrlEvent.value*127.0f/100.0f;

  1256.                                 setVolumeRT(value, true);

  1257.                             }

  1258. 

  1259.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1260.                             {

  1261.                                 float left, right;

  1262.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1263. 

  1264.                                 if (value < 0.0f)

  1265.                                 {

  1266.                                     left  = -1.0f;

  1267.                                     right = (value*2.0f)+1.0f;

  1268.                                 }

  1269.                                 else if (value > 0.0f)

  1270.                                 {

  1271.                                     left  = (value*2.0f)-1.0f;

  1272.                                     right = 1.0f;

  1273.                                 }

  1274.                                 else

  1275.                                 {

  1276.                                     left  = -1.0f;

  1277.                                     right = 1.0f;

  1278.                                 }

  1279. 

  1280.                                 setBalanceLeftRT(left, true);

  1281.                                 setBalanceRightRT(right, true);

  1282.                             }

  1283.                         }

  1284. #endif

  1285.                         // Control plugin parameters

  1286.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1287.                         {

  1288.                             if (pData->param.data[k].midiChannel != event.channel)

  1289.                                 continue;

  1290.                             if (pData->param.data[k].mappedControlIndex != ctrlEvent.param)

  1291.                                 continue;

  1292.                             if (pData->param.data[k].hints != PARAMETER_INPUT)

  1293.                                 continue;

  1294.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1295.                                 continue;

  1296. 

  1297.                             value = pData->param.getFinalUnnormalizedValue(k, ctrlEvent.value);

  1298.                             setParameterValueRT(k, value, true);

  1299.                         }

  1300. 

  1301.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param < MAX_MIDI_VALUE)

  1302.                         {

  1303.                             fluid_synth_cc(fSynth, event.channel, ctrlEvent.param, int(ctrlEvent.value*127.0f));

  1304.                         }

  1305.                         break;

  1306.                     }

  1307. 

  1308.                     case kEngineControlEventTypeMidiBank:

  1309.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1310.                             nextBankIds[event.channel] = ctrlEvent.param;

  1311.                         break;

  1312. 

  1313.                     case kEngineControlEventTypeMidiProgram:

  1314.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1315.                         {

  1316.                             const uint32_t bankId(nextBankIds[event.channel]);

  1317.                             const uint32_t progId(ctrlEvent.param);

  1318. 

  1319.                             // TODO int32_t midiprog.find(bank, prog)

  1320.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1321.                             {

  1322.                                 if (pData->midiprog.data[k].bank == bankId && pData->midiprog.data[k].program == progId)

  1323.                                 {

  1324. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  1325.                                     fluid_synth_program_select(fSynth, event.channel, fSynthId,

  1326.                                                                static_cast<int>(bankId), static_cast<int>(progId));

  1327. #else

  1328.                                     fluid_synth_program_select(fSynth, event.channel, fSynthId, bankId, progId);

  1329. #endif

  1330.                                     fCurMidiProgs[event.channel] = static_cast<int32_t>(k);

  1331. 

  1332.                                     if (event.channel == pData->ctrlChannel)

  1333.                                     {

  1334.                                         pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange,

  1335.                                                                true,

  1336.                                                                static_cast<int32_t>(k),

  1337.                                                                0, 0, 0.0f);

  1338.                                     }

  1339. 

  1340.                                     break;

  1341.                                 }

  1342.                             }

  1343.                         }

  1344.                         break;

  1345. 

  1346.                     case kEngineControlEventTypeAllSoundOff:

  1347.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1348.                             fluid_synth_all_sounds_off(fSynth, event.channel);

  1349.                         break;

  1350. 

  1351.                     case kEngineControlEventTypeAllNotesOff:

  1352.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1353.                         {

  1354. #ifndef BUILD_BRIDGE

  1355.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1356.                             {

  1357.                                 allNotesOffSent = true;

  1358.                                 postponeRtAllNotesOff();

  1359.                             }

  1360. #endif

  1361. 

  1362.                             fluid_synth_all_notes_off(fSynth, event.channel);

  1363.                         }

  1364.                         break;

  1365.                     }

  1366. 

  1367.                     break;

  1368.                 }

  1369. 

  1370.                 case kEngineEventTypeMidi: {

  1371.                     const EngineMidiEvent& midiEvent(event.midi);

  1372. 

  1373.                     if (midiEvent.size > EngineMidiEvent::kDataSize)

  1374.                         continue;

  1375. 

  1376.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1377. 

  1378.                     // Fix bad note-off

  1379.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1380.                         status = MIDI_STATUS_NOTE_OFF;

  1381. 

  1382.                     switch (status)

  1383.                     {

  1384.                     case MIDI_STATUS_NOTE_OFF: {

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

  1386. 

  1387.                         fluid_synth_noteoff(fSynth, event.channel, note);

  1388. 

  1389.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, true, event.channel, note, 0, 0.0f);

  1390.                         break;

  1391.                     }

  1392. 

  1393.                     case MIDI_STATUS_NOTE_ON: {

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

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

  1396. 

  1397.                         fluid_synth_noteon(fSynth, event.channel, note, velo);

  1398. 

  1399.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, true, event.channel, note, velo, 0.0f);

  1400.                         break;

  1401.                     }

  1402. 

  1403.                     case MIDI_STATUS_POLYPHONIC_AFTERTOUCH:

  1404.                         if (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH)

  1405.                         {

  1406.                             //const uint8_t note     = midiEvent.data[1];

  1407.                             //const uint8_t pressure = midiEvent.data[2];

  1408. 

  1409.                             // not in fluidsynth API

  1410.                         }

  1411.                         break;

  1412. 

  1413.                     case MIDI_STATUS_CONTROL_CHANGE:

  1414.                         if (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1415.                         {

  1416.                             const uint8_t control = midiEvent.data[1];

  1417.                             const uint8_t value   = midiEvent.data[2];

  1418. 

  1419.                             fluid_synth_cc(fSynth, event.channel, control, value);

  1420.                         }

  1421.                         break;

  1422. 

  1423.                     case MIDI_STATUS_CHANNEL_PRESSURE:

  1424.                         if (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE)

  1425.                         {

  1426.                             const uint8_t pressure = midiEvent.data[1];

  1427. 

  1428.                             fluid_synth_channel_pressure(fSynth, event.channel, pressure);;

  1429.                         }

  1430.                         break;

  1431. 

  1432.                     case MIDI_STATUS_PITCH_WHEEL_CONTROL:

  1433.                         if (pData->options & PLUGIN_OPTION_SEND_PITCHBEND)

  1434.                         {

  1435.                             const uint8_t lsb = midiEvent.data[1];

  1436.                             const uint8_t msb = midiEvent.data[2];

  1437.                             const int   value = ((msb << 7) | lsb);

  1438. 

  1439.                             fluid_synth_pitch_bend(fSynth, event.channel, value);

  1440.                         }

  1441.                         break;

  1442. 

  1443.                     default:

  1444.                         continue;

  1445.                         break;

  1446.                     } // switch (status)

  1447.                 } break;

  1448.                 } // switch (event.type)

  1449.             }

  1450. 

  1451.             pData->postRtEvents.trySplice();

  1452. 

  1453.             if (frames > timeOffset)

  1454.                 processSingle(audioOut, frames - timeOffset, timeOffset);

  1455. 

  1456.         } // End of Event Input and Processing

  1457. 

  1458. #ifndef BUILD_BRIDGE

  1459.         // --------------------------------------------------------------------------------------------------------

  1460.         // Control Output

  1461. 

  1462.         {

  1463.             uint32_t k = FluidSynthVoiceCount;

  1464.             fParamBuffers[k] = float(fluid_synth_get_active_voice_count(fSynth));

  1465.             pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1466. 

  1467.             if (pData->param.data[k].mappedControlIndex > 0)

  1468.             {

  1469.                 float value(pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]));

  1470.                 pData->event.portOut->writeControlEvent(0,

  1471.                                                         pData->param.data[k].midiChannel,

  1472.                                                         kEngineControlEventTypeParameter,

  1473.                                                         static_cast<uint16_t>(pData->param.data[k].mappedControlIndex),

  1474.                                                         value);

  1475.             }

  1476. 

  1477.         } // End of Control Output

  1478. #endif

  1479.     }

  1480. 

  1481.     bool processSingle(float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1482.     {

  1483.         CARLA_SAFE_ASSERT_RETURN(outBuffer != nullptr, false);

  1484.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1485. 

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

  1487.         // Try lock, silence otherwise

  1488. 

  1489. #ifndef STOAT_TEST_BUILD

  1490.         if (pData->engine->isOffline())

  1491.         {

  1492.             pData->singleMutex.lock();

  1493.         }

  1494.         else

  1495. #endif

  1496.         if (! pData->singleMutex.tryLock())

  1497.         {

  1498.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1499.             {

  1500.                 for (uint32_t k=0; k < frames; ++k)

  1501.                     outBuffer[i][k+timeOffset] = 0.0f;

  1502.             }

  1503. 

  1504.             return false;

  1505.         }

  1506. 

  1507.         // --------------------------------------------------------------------------------------------------------

  1508.         // Fill plugin buffers and Run plugin

  1509. 

  1510.         if (kUse16Outs)

  1511.         {

  1512.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1513.                 carla_zeroFloats(fAudio16Buffers[i], frames);

  1514. 

  1515.             // FIXME use '32' or '16' instead of outs

  1516.             fluid_synth_process(fSynth, static_cast<int>(frames),

  1517.                                 0, nullptr,

  1518.                                 static_cast<int>(pData->audioOut.count), fAudio16Buffers);

  1519.         }

  1520.         else

  1521.         {

  1522.             fluid_synth_write_float(fSynth, static_cast<int>(frames),

  1523.                                     outBuffer[0] + timeOffset, 0, 1,

  1524.                                     outBuffer[1] + timeOffset, 0, 1);

  1525.         }

  1526. 

  1527. #ifndef BUILD_BRIDGE

  1528.         // --------------------------------------------------------------------------------------------------------

  1529.         // Post-processing (volume and balance)

  1530. 

  1531.         {

  1532.             // note - balance not possible with kUse16Outs, so we can safely skip fAudioOutBuffers

  1533.             const bool doVolume  = (pData->hints & PLUGIN_CAN_VOLUME) != 0 && carla_isNotEqual(pData->postProc.volume, 1.0f);

  1534.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_isEqual(pData->postProc.balanceLeft, -1.0f) && carla_isEqual(pData->postProc.balanceRight, 1.0f));

  1535. 

  1536.             float oldBufLeft[doBalance ? frames : 1];

  1537. 

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

  1539.             {

  1540.                 // Balance

  1541.                 if (doBalance)

  1542.                 {

  1543.                     if (i % 2 == 0)

  1544.                         carla_copyFloats(oldBufLeft, outBuffer[i]+timeOffset, frames);

  1545. 

  1546.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1547.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1548. 

  1549.                     for (uint32_t k=0; k < frames; ++k)

  1550.                     {

  1551.                         if (i % 2 == 0)

  1552.                         {

  1553.                             // left

  1554.                             outBuffer[i][k+timeOffset]  = oldBufLeft[k]                * (1.0f - balRangeL);

  1555.                             outBuffer[i][k+timeOffset] += outBuffer[i+1][k+timeOffset] * (1.0f - balRangeR);

  1556.                         }

  1557.                         else

  1558.                         {

  1559.                             // right

  1560.                             outBuffer[i][k+timeOffset]  = outBuffer[i][k+timeOffset] * balRangeR;

  1561.                             outBuffer[i][k+timeOffset] += oldBufLeft[k]              * balRangeL;

  1562.                         }

  1563.                     }

  1564.                 }

  1565. 

  1566.                 // Volume

  1567.                 if (kUse16Outs)

  1568.                 {

  1569.                     for (uint32_t k=0; k < frames; ++k)

  1570.                         outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k] * pData->postProc.volume;

  1571.                 }

  1572.                 else if (doVolume)

  1573.                 {

  1574.                     for (uint32_t k=0; k < frames; ++k)

  1575.                         outBuffer[i][k+timeOffset] *= pData->postProc.volume;

  1576.                 }

  1577.             }

  1578. 

  1579.         } // End of Post-processing

  1580. #else

  1581.         if (kUse16Outs)

  1582.         {

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

  1584.             {

  1585.                 for (uint32_t k=0; k < frames; ++k)

  1586.                     outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k];

  1587.             }

  1588.         }

  1589. #endif

  1590. 

  1591.         // --------------------------------------------------------------------------------------------------------

  1592. 

  1593.         pData->singleMutex.unlock();

  1594.         return true;

  1595.     }

  1596. 

  1597.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1598.     {

  1599.         if (! kUse16Outs)

  1600.             return;

  1601. 

  1602.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1603.         {

  1604.             if (fAudio16Buffers[i] != nullptr)

  1605.                 delete[] fAudio16Buffers[i];

  1606.             fAudio16Buffers[i] = new float[newBufferSize];

  1607.         }

  1608.     }

  1609. 

  1610.     void sampleRateChanged(const double newSampleRate) override

  1611.     {

  1612.         CARLA_SAFE_ASSERT_RETURN(fSettings != nullptr,);

  1613.         fluid_settings_setnum(fSettings, "synth.sample-rate", newSampleRate);

  1614. 

  1615. #if FLUIDSYNTH_VERSION_MAJOR < 2

  1616.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

  1617.         fluid_synth_set_sample_rate(fSynth, static_cast<float>(newSampleRate));

  1618. #endif

  1619.     }

  1620. 

  1621.     // -------------------------------------------------------------------

  1622.     // Plugin buffers

  1623. 

  1624.     void clearBuffers() noexcept override

  1625.     {

  1626.         carla_debug("CarlaPluginFluidSynth::clearBuffers() - start");

  1627. 

  1628.         if (fAudio16Buffers != nullptr)

  1629.         {

  1630.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1631.             {

  1632.                 if (fAudio16Buffers[i] != nullptr)

  1633.                 {

  1634.                     delete[] fAudio16Buffers[i];

  1635.                     fAudio16Buffers[i] = nullptr;

  1636.                 }

  1637.             }

  1638. 

  1639.             delete[] fAudio16Buffers;

  1640.             fAudio16Buffers = nullptr;

  1641.         }

  1642. 

  1643.         CarlaPlugin::clearBuffers();

  1644. 

  1645.         carla_debug("CarlaPluginFluidSynth::clearBuffers() - end");

  1646.     }

  1647. 

  1648.     // -------------------------------------------------------------------

  1649. 

  1650.     const void* getExtraStuff() const noexcept override

  1651.     {

  1652.         static const char xtrue[]  = "true";

  1653.         static const char xfalse[] = "false";

  1654.         return kUse16Outs ? xtrue : xfalse;

  1655.     }

  1656. 

  1657.     // -------------------------------------------------------------------

  1658. 

  1659.     bool init(const CarlaPluginPtr plugin,

  1660.               const char* const filename, const char* const name, const char* const label, const uint options)

  1661.     {

  1662.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  1663. 

  1664.         // ---------------------------------------------------------------

  1665.         // first checks

  1666. 

  1667.         if (pData->client != nullptr)

  1668.         {

  1669.             pData->engine->setLastError("Plugin client is already registered");

  1670.             return false;

  1671.         }

  1672. 

  1673.         if (fSynth == nullptr)

  1674.         {

  1675.             pData->engine->setLastError("null synth");

  1676.             return false;

  1677.         }

  1678. 

  1679.         if (filename == nullptr || filename[0] == '\0')

  1680.         {

  1681.             pData->engine->setLastError("null filename");

  1682.             return false;

  1683.         }

  1684. 

  1685.         if (label == nullptr || label[0] == '\0')

  1686.         {

  1687.             pData->engine->setLastError("null label");

  1688.             return false;

  1689.         }

  1690. 

  1691.         // ---------------------------------------------------------------

  1692.         // open soundfont

  1693. 

  1694.         const int synthId = fluid_synth_sfload(fSynth, filename, 0);

  1695. 

  1696.         if (synthId < 0)

  1697.         {

  1698.             pData->engine->setLastError("Failed to load SoundFont file");

  1699.             return false;

  1700.         }

  1701. 

  1702. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  1703.         fSynthId = synthId;

  1704. #else

  1705.         fSynthId = static_cast<uint>(synthId);

  1706. #endif

  1707. 

  1708. 

  1709.         // ---------------------------------------------------------------

  1710.         // get info

  1711. 

  1712.         CarlaString label2(label);

  1713. 

  1714.         if (kUse16Outs && ! label2.endsWith(" (16 outs)"))

  1715.             label2 += " (16 outs)";

  1716. 

  1717.         fLabel          = label2.dup();

  1718.         pData->filename = carla_strdup(filename);

  1719. 

  1720.         if (name != nullptr && name[0] != '\0')

  1721.             pData->name = pData->engine->getUniquePluginName(name);

  1722.         else

  1723.             pData->name = pData->engine->getUniquePluginName(label);

  1724. 

  1725.         // ---------------------------------------------------------------

  1726.         // register client

  1727. 

  1728.         pData->client = pData->engine->addClient(plugin);

  1729. 

  1730.         if (pData->client == nullptr || ! pData->client->isOk())

  1731.         {

  1732.             pData->engine->setLastError("Failed to register plugin client");

  1733.             return false;

  1734.         }

  1735. 

  1736.         // ---------------------------------------------------------------

  1737.         // set options

  1738. 

  1739.         pData->options = 0x0;

  1740. 

  1741.         if (isPluginOptionEnabled(options, PLUGIN_OPTION_SEND_CONTROL_CHANGES))

  1742.             pData->options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  1743.         if (isPluginOptionEnabled(options, PLUGIN_OPTION_SEND_CHANNEL_PRESSURE))

  1744.             pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1745.         if (isPluginOptionEnabled(options, PLUGIN_OPTION_SEND_PITCHBEND))

  1746.             pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  1747.         if (isPluginOptionEnabled(options, PLUGIN_OPTION_SEND_ALL_SOUND_OFF))

  1748.             pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1749.         if (isPluginOptionEnabled(options, PLUGIN_OPTION_MAP_PROGRAM_CHANGES))

  1750.             pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1751. 

  1752.         return true;

  1753.     }

  1754. 

  1755. private:

  1756.     void initializeFluidDefaultsIfNeeded()

  1757.     {

  1758.         if (sFluidDefaultsStored)

  1759.             return;

  1760. 

  1761.         sFluidDefaultsStored = true;

  1762. 

  1763.         // reverb defaults

  1764.         sFluidDefaults[FluidSynthReverbOnOff] = 1.0f;

  1765. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  1766.         double reverbVal;

  1767. 

  1768.         reverbVal = 0.2;

  1769.         fluid_settings_getnum_default(fSettings, "synth.reverb.room-size", &reverbVal);

  1770.         sFluidDefaults[FluidSynthReverbRoomSize] = static_cast<float>(reverbVal);

  1771. 

  1772.         reverbVal = 0.0;

  1773.         fluid_settings_getnum_default(fSettings, "synth.reverb.damp", &reverbVal);

  1774.         sFluidDefaults[FluidSynthReverbDamp] = static_cast<float>(reverbVal);

  1775. 

  1776.         reverbVal = 0.9;

  1777.         fluid_settings_getnum_default(fSettings, "synth.reverb.level", &reverbVal);

  1778.         sFluidDefaults[FluidSynthReverbLevel] = static_cast<float>(reverbVal);

  1779. 

  1780.         reverbVal = 0.5;

  1781.         fluid_settings_getnum_default(fSettings, "synth.reverb.width", &reverbVal);

  1782.         sFluidDefaults[FluidSynthReverbWidth] = static_cast<float>(reverbVal);

  1783. #else

  1784.         sFluidDefaults[FluidSynthReverbRoomSize] = FLUID_REVERB_DEFAULT_ROOMSIZE;

  1785.         sFluidDefaults[FluidSynthReverbDamp] = FLUID_REVERB_DEFAULT_DAMP;

  1786.         sFluidDefaults[FluidSynthReverbLevel] = FLUID_REVERB_DEFAULT_LEVEL;

  1787.         sFluidDefaults[FluidSynthReverbWidth] = FLUID_REVERB_DEFAULT_WIDTH;

  1788. #endif

  1789. 

  1790.         // chorus defaults

  1791.         sFluidDefaults[FluidSynthChorusOnOff] = 1.0f;

  1792. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  1793.         double chorusVal;

  1794. 

  1795.         chorusVal = 3.0;

  1796.         fluid_settings_getnum_default(fSettings, "synth.chorus.nr", &chorusVal);

  1797.         sFluidDefaults[FluidSynthChorusNr] = static_cast<float>(chorusVal);

  1798. 

  1799.         chorusVal = 2.0;

  1800.         fluid_settings_getnum_default(fSettings, "synth.chorus.level", &chorusVal);

  1801.         sFluidDefaults[FluidSynthChorusLevel] = static_cast<float>(chorusVal);

  1802. 

  1803.         chorusVal = 0.3;

  1804.         fluid_settings_getnum_default(fSettings, "synth.chorus.speed", &chorusVal);

  1805.         sFluidDefaults[FluidSynthChorusSpeedHz] = static_cast<float>(chorusVal);

  1806. 

  1807.         chorusVal = 8.0;

  1808.         fluid_settings_getnum_default(fSettings, "synth.chorus.depth", &chorusVal);

  1809.         sFluidDefaults[FluidSynthChorusDepthMs] = static_cast<float>(chorusVal);

  1810. 

  1811.         // There is no settings for chorus default type

  1812.         sFluidDefaults[FluidSynthChorusType] = static_cast<float>(fluid_synth_get_chorus_type(fSynth));

  1813. #else

  1814.         sFluidDefaults[FluidSynthChorusNr] = FLUID_CHORUS_DEFAULT_N;

  1815.         sFluidDefaults[FluidSynthChorusLevel] = FLUID_CHORUS_DEFAULT_LEVEL;

  1816.         sFluidDefaults[FluidSynthChorusSpeedHz] = FLUID_CHORUS_DEFAULT_SPEED;

  1817.         sFluidDefaults[FluidSynthChorusDepthMs] = FLUID_CHORUS_DEFAULT_DEPTH;

  1818.         sFluidDefaults[FluidSynthChorusType] = FLUID_CHORUS_DEFAULT_TYPE;

  1819. #endif

  1820. 

  1821.         // misc. defaults

  1822.         sFluidDefaults[FluidSynthInterpolation] = FLUID_INTERP_DEFAULT;

  1823.         sFluidDefaults[FluidSynthPolyphony] = FLUID_DEFAULT_POLYPHONY;

  1824.     }

  1825. 

  1826.     enum FluidSynthParameters {

  1827.         FluidSynthReverbOnOff    = 0,

  1828.         FluidSynthReverbRoomSize = 1,

  1829.         FluidSynthReverbDamp     = 2,

  1830.         FluidSynthReverbLevel    = 3,

  1831.         FluidSynthReverbWidth    = 4,

  1832.         FluidSynthChorusOnOff    = 5,

  1833.         FluidSynthChorusNr       = 6,

  1834.         FluidSynthChorusLevel    = 7,

  1835.         FluidSynthChorusSpeedHz  = 8,

  1836.         FluidSynthChorusDepthMs  = 9,

  1837.         FluidSynthChorusType     = 10,

  1838.         FluidSynthPolyphony      = 11,

  1839.         FluidSynthInterpolation  = 12,

  1840.         FluidSynthVoiceCount     = 13,

  1841.         FluidSynthParametersMax  = 14

  1842.     };

  1843. 

  1844.     const bool kUse16Outs;

  1845. 

  1846.     fluid_settings_t* fSettings;

  1847.     fluid_synth_t*    fSynth;

  1848. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  1849.     int fSynthId;

  1850. #else

  1851.     uint fSynthId;

  1852. #endif

  1853. 

  1854.     float** fAudio16Buffers;

  1855.     float   fParamBuffers[FluidSynthParametersMax];

  1856. 

  1857.     static bool sFluidDefaultsStored;

  1858.     static float sFluidDefaults[FluidSynthParametersMax];

  1859. 

  1860.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  1861. 

  1862.     const char* fLabel;

  1863. 

  1864.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginFluidSynth)

  1865. };

  1866. 

  1867. bool CarlaPluginFluidSynth::sFluidDefaultsStored = false;

  1868. float CarlaPluginFluidSynth::sFluidDefaults[FluidSynthParametersMax] = {

  1869.     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,

  1870. };

  1871. 

  1872. CARLA_BACKEND_END_NAMESPACE

  1873. 

  1874. #endif // HAVE_FLUIDSYNTH

  1875. 

  1876. CARLA_BACKEND_START_NAMESPACE

  1877. 

  1878. // -------------------------------------------------------------------------------------------------------------------

  1879. 

  1880. CarlaPluginPtr CarlaPlugin::newFluidSynth(const Initializer& init, PluginType ptype, bool use16Outs)

  1881. {

  1882.     carla_debug("CarlaPlugin::newFluidSynth({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "}, %s)",

  1883.                 init.engine, init.filename, init.name, init.label, init.uniqueId, bool2str(use16Outs));

  1884. 

  1885. #ifdef HAVE_FLUIDSYNTH

  1886.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK)

  1887.         use16Outs = false;

  1888. 

  1889.     if (ptype == PLUGIN_SF2 && ! fluid_is_soundfont(init.filename))

  1890.     {

  1891.         init.engine->setLastError("Requested file is not a valid SoundFont");

  1892.         return nullptr;

  1893.     }

  1894. #ifndef HAVE_FLUIDSYNTH_INSTPATCH

  1895.     if (ptype == PLUGIN_DLS)

  1896.     {

  1897.         init.engine->setLastError("DLS file support not available");

  1898.         return nullptr;

  1899.     }

  1900.     if (ptype == PLUGIN_GIG)

  1901.     {

  1902.         init.engine->setLastError("GIG file support not available");

  1903.         return nullptr;

  1904.     }

  1905. #endif

  1906. 

  1907.     std::shared_ptr<CarlaPluginFluidSynth> plugin(new CarlaPluginFluidSynth(init.engine, init.id,  use16Outs));

  1908. 

  1909.     if (! plugin->init(plugin, init.filename, init.name, init.label, init.options))

  1910.         return nullptr;

  1911. 

  1912.     return plugin;

  1913. #else

  1914.     init.engine->setLastError("fluidsynth support not available");

  1915.     return nullptr;

  1916. 

  1917.     // unused

  1918.     (void)ptype;

  1919.     (void)use16Outs;

  1920. #endif

  1921. }

  1922. 

  1923. // -------------------------------------------------------------------------------------------------------------------

  1924. 

  1925. CARLA_BACKEND_END_NAMESPACE