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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 "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.parallel-render", 1);

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

  72. 

  73.         // create synth

  74.         fSynth = new_fluid_synth(fSettings);

  75.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

  76. 

  77.         initializeFluidDefaultsIfNeeded();

  78. 

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

  80. 

  81.         // set default values

  82.         fluid_synth_set_reverb_on(fSynth, 1);

  83.         fluid_synth_set_reverb(fSynth,

  84.                                sFluidDefaults[FluidSynthReverbRoomSize],

  85.                                sFluidDefaults[FluidSynthReverbDamp],

  86.                                sFluidDefaults[FluidSynthReverbWidth],

  87.                                sFluidDefaults[FluidSynthReverbLevel]);

  88. 

  89.         fluid_synth_set_chorus_on(fSynth, 1);

  90.         fluid_synth_set_chorus(fSynth,

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

  92.                                sFluidDefaults[FluidSynthChorusLevel],

  93.                                sFluidDefaults[FluidSynthChorusSpeedHz],

  94.                                sFluidDefaults[FluidSynthChorusDepthMs],

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

  96. 

  97.         fluid_synth_set_polyphony(fSynth, FLUID_DEFAULT_POLYPHONY);

  98.         fluid_synth_set_gain(fSynth, 1.0f);

  99. 

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

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

  102.     }

  103. 

  104.     ~CarlaPluginFluidSynth() override

  105.     {

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

  107. 

  108.         pData->singleMutex.lock();

  109.         pData->masterMutex.lock();

  110. 

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

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

  113. 

  114.         if (pData->active)

  115.         {

  116.             deactivate();

  117.             pData->active = false;

  118.         }

  119. 

  120.         if (fSynth != nullptr)

  121.         {

  122.             delete_fluid_synth(fSynth);

  123.             fSynth = nullptr;

  124.         }

  125. 

  126.         if (fSettings != nullptr)

  127.         {

  128.             delete_fluid_settings(fSettings);

  129.             fSettings = nullptr;

  130.         }

  131. 

  132.         if (fLabel != nullptr)

  133.         {

  134.             delete[] fLabel;

  135.             fLabel = nullptr;

  136.         }

  137. 

  138.         clearBuffers();

  139.     }

  140. 

  141.     // -------------------------------------------------------------------

  142.     // Information (base)

  143. 

  144.     PluginType getType() const noexcept override

  145.     {

  146.         return PLUGIN_SF2;

  147.     }

  148. 

  149.     PluginCategory getCategory() const noexcept override

  150.     {

  151.         return PLUGIN_CATEGORY_SYNTH;

  152.     }

  153. 

  154.     // -------------------------------------------------------------------

  155.     // Information (count)

  156. 

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

  158.     {

  159.         switch (parameterId)

  160.         {

  161.         case FluidSynthChorusType:

  162.             return 2;

  163.         case FluidSynthInterpolation:

  164.             return 4;

  165.         default:

  166.             return 0;

  167.         }

  168.     }

  169. 

  170.     // -------------------------------------------------------------------

  171.     // Information (current data)

  172. 

  173.     // nothing

  174. 

  175.     // -------------------------------------------------------------------

  176.     // Information (per-plugin data)

  177. 

  178.     uint getOptionsAvailable() const noexcept override

  179.     {

  180.         uint options = 0x0;

  181. 

  182.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  183.         options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  184.         options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  185.         options |= PLUGIN_OPTION_SEND_PITCHBEND;

  186.         options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  187. 

  188.         return options;

  189.     }

  190. 

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

  192.     {

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

  194. 

  195.         return fParamBuffers[parameterId];

  196.     }

  197. 

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

  199.     {

  200.         switch (parameterId)

  201.         {

  202.         case FluidSynthChorusType:

  203.             switch (scalePointId)

  204.             {

  205.             case 0:

  206.                 return FLUID_CHORUS_MOD_SINE;

  207.             case 1:

  208.                 return FLUID_CHORUS_MOD_TRIANGLE;

  209.             default:

  210.                 return sFluidDefaults[FluidSynthChorusType];

  211.             }

  212.         case FluidSynthInterpolation:

  213.             switch (scalePointId)

  214.             {

  215.             case 0:

  216.                 return FLUID_INTERP_NONE;

  217.             case 1:

  218.                 return FLUID_INTERP_LINEAR;

  219.             case 2:

  220.                 return FLUID_INTERP_4THORDER;

  221.             case 3:

  222.                 return FLUID_INTERP_7THORDER;

  223.             default:

  224.                 return sFluidDefaults[FluidSynthInterpolation];

  225.             }

  226.         default:

  227.             return 0.0f;

  228.         }

  229.     }

  230. 

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

  232.     {

  233.         if (fLabel != nullptr)

  234.         {

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

  236.             return true;

  237.         }

  238. 

  239.         return CarlaPlugin::getLabel(strBuf);

  240.     }

  241. 

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

  243.     {

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

  245.         return true;

  246.     }

  247. 

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

  249.     {

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

  251.         return true;

  252.     }

  253. 

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

  255.     {

  256.         return getLabel(strBuf);

  257.     }

  258. 

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

  260.     {

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

  262. 

  263.         switch (parameterId)

  264.         {

  265.         case FluidSynthReverbOnOff:

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

  267.             return true;

  268.         case FluidSynthReverbRoomSize:

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

  270.             return true;

  271.         case FluidSynthReverbDamp:

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

  273.             return true;

  274.         case FluidSynthReverbLevel:

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

  276.             return true;

  277.         case FluidSynthReverbWidth:

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

  279.             return true;

  280.         case FluidSynthChorusOnOff:

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

  282.             return true;

  283.         case FluidSynthChorusNr:

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

  285.             return true;

  286.         case FluidSynthChorusLevel:

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

  288.             return true;

  289.         case FluidSynthChorusSpeedHz:

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

  291.             return true;

  292.         case FluidSynthChorusDepthMs:

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

  294.             return true;

  295.         case FluidSynthChorusType:

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

  297.             return true;

  298.         case FluidSynthPolyphony:

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

  300.             return true;

  301.         case FluidSynthInterpolation:

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

  303.             return true;

  304.         case FluidSynthVoiceCount:

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

  306.             return true;

  307.         }

  308. 

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

  310.     }

  311. 

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

  313.     {

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

  315. 

  316.         switch (parameterId)

  317.         {

  318.         case FluidSynthChorusSpeedHz:

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

  320.             return true;

  321.         case FluidSynthChorusDepthMs:

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

  323.             return true;

  324.         }

  325. 

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

  327.     }

  328. 

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

  330.     {

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

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

  333. 

  334.         switch (parameterId)

  335.         {

  336.         case FluidSynthChorusType:

  337.             switch (scalePointId)

  338.             {

  339.             case 0:

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

  341.                 return true;

  342.             case 1:

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

  344.                 return true;

  345.             }

  346.             break;

  347.         case FluidSynthInterpolation:

  348.             switch (scalePointId)

  349.             {

  350.             case 0:

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

  352.                 return true;

  353.             case 1:

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

  355.                 return true;

  356.             case 2:

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

  358.                 return true;

  359.             case 3:

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

  361.                 return true;

  362.             }

  363.             break;

  364.         }

  365. 

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

  367.     }

  368. 

  369.     // -------------------------------------------------------------------

  370.     // Set data (state)

  371. 

  372.     void prepareForSave() override

  373.     {

  374.         char strBuf[STR_MAX+1];

  375.         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],

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

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

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

  379. 

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

  381.     }

  382. 

  383.     // -------------------------------------------------------------------

  384.     // Set data (internal stuff)

  385. 

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

  387.     {

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

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

  390. 

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

  392.     }

  393. 

  394.     // -------------------------------------------------------------------

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

  396. 

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

  398.     {

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

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

  401. 

  402.         float fixedValue;

  403. 

  404.         {

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

  406.             fixedValue = setParameterValueInFluidSynth(parameterId, value);

  407. 

  408.         }

  409. 

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

  411.     }

  412. 

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

  414.     {

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

  416. 

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

  418.     }

  419. 

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

  421.     {

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

  423. 

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

  425.         fParamBuffers[parameterId] = fixedValue;

  426. 

  427.         switch (parameterId)

  428.         {

  429.         case FluidSynthReverbOnOff:

  430.             try {

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

  432.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_reverb_on")

  433.             break;

  434. 

  435.         case FluidSynthReverbRoomSize:

  436.         case FluidSynthReverbDamp:

  437.         case FluidSynthReverbLevel:

  438.         case FluidSynthReverbWidth:

  439.             try {

  440.                 fluid_synth_set_reverb(fSynth,

  441.                                        fParamBuffers[FluidSynthReverbRoomSize],

  442.                                        fParamBuffers[FluidSynthReverbDamp],

  443.                                        fParamBuffers[FluidSynthReverbWidth],

  444.                                        fParamBuffers[FluidSynthReverbLevel]);

  445.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_reverb")

  446.             break;

  447. 

  448.         case FluidSynthChorusOnOff:

  449.             try {

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

  451.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_chorus_on")

  452.             break;

  453. 

  454.         case FluidSynthChorusNr:

  455.         case FluidSynthChorusLevel:

  456.         case FluidSynthChorusSpeedHz:

  457.         case FluidSynthChorusDepthMs:

  458.         case FluidSynthChorusType:

  459.             try {

  460.                 fluid_synth_set_chorus(fSynth,

  461.                                        (int)fParamBuffers[FluidSynthChorusNr],

  462.                                        fParamBuffers[FluidSynthChorusLevel],

  463.                                        fParamBuffers[FluidSynthChorusSpeedHz],

  464.                                        fParamBuffers[FluidSynthChorusDepthMs],

  465.                                        (int)fParamBuffers[FluidSynthChorusType]);

  466.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_chorus")

  467.             break;

  468. 

  469.         case FluidSynthPolyphony:

  470.             try {

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

  472.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_polyphony")

  473.             break;

  474. 

  475.         case FluidSynthInterpolation:

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

  477.             {

  478.                 try {

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

  480.                 } CARLA_SAFE_EXCEPTION_BREAK("fluid_synth_set_interp_method")

  481.             }

  482.             break;

  483. 

  484.         default:

  485.             break;

  486.         }

  487. 

  488.         return fixedValue;

  489.     }

  490. 

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

  492.     {

  493.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

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

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

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

  498. 

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

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

  501. 

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

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

  504. 

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

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

  507. 

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

  509. 

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

  511.         {

  512.             uint8_t channel = 0;

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

  514.             {

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

  516. 

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

  518.                 {

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

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

  521. 

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

  523.                     fCurMidiProgs[channel] = index;

  524. 

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

  526.                     {

  527.                         pData->midiprog.current = index;

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

  529.                                                 ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED,

  530.                                                 pData->id,

  531.                                                 index,

  532.                                                 0, 0, 0.0f, nullptr);

  533.                     }

  534.                 }

  535. 

  536.                 ++channel;

  537.             }

  538.             CARLA_SAFE_ASSERT(channel == MAX_MIDI_CHANNELS);

  539.         }

  540. 

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

  542.     }

  543. 

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

  545.     {

  546.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

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

  549. 

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

  551.         {

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

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

  554. 

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

  556. 

  557.             try {

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

  559.             } CARLA_SAFE_EXCEPTION("fluid_synth_program_select")

  560. 

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

  562.         }

  563. 

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

  565.     }

  566. 

  567.     // FIXME: this is never used

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

  569.     {

  570.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

  572. 

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

  574.         {

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

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

  577. 

  578.             try {

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

  580.             } CARLA_SAFE_EXCEPTION("fluid_synth_program_select")

  581. 

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

  583.         }

  584. 

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

  586.     }

  587. 

  588.     // -------------------------------------------------------------------

  589.     // Set ui stuff

  590. 

  591.     // nothing

  592. 

  593.     // -------------------------------------------------------------------

  594.     // Plugin state

  595. 

  596.     void reload() override

  597.     {

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

  599.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

  601. 

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

  603. 

  604.         // Safely disable plugin for reload

  605.         const ScopedDisabler sd(this);

  606. 

  607.         if (pData->active)

  608.             deactivate();

  609. 

  610.         clearBuffers();

  611. 

  612.         uint32_t aOuts, params;

  613.         aOuts  = kUse16Outs ? 32 : 2;

  614.         params = FluidSynthParametersMax;

  615. 

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

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

  618. 

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

  620.         CarlaString portName;

  621. 

  622.         // ---------------------------------------

  623.         // Audio Outputs

  624. 

  625.         if (kUse16Outs)

  626.         {

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

  628.             {

  629.                 portName.clear();

  630. 

  631.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  632.                 {

  633.                     portName  = pData->name;

  634.                     portName += ":";

  635.                 }

  636. 

  637.                 portName += "out-";

  638. 

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

  640.                     portName += "0";

  641. 

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

  643. 

  644.                 if (i % 2 == 0)

  645.                     portName += "L";

  646.                 else

  647.                     portName += "R";

  648. 

  649.                 portName.truncate(portNameSize);

  650. 

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

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

  653.             }

  654. 

  655.             fAudio16Buffers = new float*[aOuts];

  656. 

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

  658.                 fAudio16Buffers[i] = nullptr;

  659.         }

  660.         else

  661.         {

  662.             // out-left

  663.             portName.clear();

  664. 

  665.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  666.             {

  667.                 portName  = pData->name;

  668.                 portName += ":";

  669.             }

  670. 

  671.             portName += "out-left";

  672.             portName.truncate(portNameSize);

  673. 

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

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

  676. 

  677.             // out-right

  678.             portName.clear();

  679. 

  680.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  681.             {

  682.                 portName  = pData->name;

  683.                 portName += ":";

  684.             }

  685. 

  686.             portName += "out-right";

  687.             portName.truncate(portNameSize);

  688. 

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

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

  691.         }

  692. 

  693.         // ---------------------------------------

  694.         // Event Input

  695. 

  696.         {

  697.             portName.clear();

  698. 

  699.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  700.             {

  701.                 portName  = pData->name;

  702.                 portName += ":";

  703.             }

  704. 

  705.             portName += "events-in";

  706.             portName.truncate(portNameSize);

  707. 

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

  709.         }

  710. 

  711.         // ---------------------------------------

  712.         // Event Output

  713. 

  714.         {

  715.             portName.clear();

  716. 

  717.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  718.             {

  719.                 portName  = pData->name;

  720.                 portName += ":";

  721.             }

  722. 

  723.             portName += "events-out";

  724.             portName.truncate(portNameSize);

  725. 

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

  727.         }

  728. 

  729.         // ---------------------------------------

  730.         // Parameters

  731. 

  732.         {

  733.             int j;

  734. 

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

  736.             j = FluidSynthReverbOnOff;

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

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

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

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

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

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

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

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

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

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

  747. 

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

  749.             j = FluidSynthReverbRoomSize;

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

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

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

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

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

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

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

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

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

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

  760. 

  761.             // ----------------------

  762.             j = FluidSynthReverbDamp;

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

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

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

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

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

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

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

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

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

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

  773. 

  774.             // ----------------------

  775.             j = FluidSynthReverbLevel;

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

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

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

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

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

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

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

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

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

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

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

  787. 

  788.             // ----------------------

  789.             j = FluidSynthReverbWidth;

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

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

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

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

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

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

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

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

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

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

  800. 

  801.             // ----------------------

  802.             j = FluidSynthChorusOnOff;

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

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

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

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

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

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

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

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

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

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

  813. 

  814.             // ----------------------

  815.             j = FluidSynthChorusNr;

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

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

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

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

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

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

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

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

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

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

  826. 

  827.             // ----------------------

  828.             j = FluidSynthChorusLevel;

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

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

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

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

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

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

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

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

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

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

  839. 

  840.             // ----------------------

  841.             j = FluidSynthChorusSpeedHz;

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

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

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

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

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

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

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

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

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

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

  852. 

  853.             // ----------------------

  854.             j = FluidSynthChorusDepthMs;

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

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

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

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

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

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

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

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

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

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

  865. 

  866.             // ----------------------

  867.             j = FluidSynthChorusType;

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

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

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

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

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

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

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

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

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

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

  878. 

  879.             // ----------------------

  880.             j = FluidSynthPolyphony;

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

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

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

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

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

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

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

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

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

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

  891. 

  892.             // ----------------------

  893.             j = FluidSynthInterpolation;

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

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

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

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

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

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

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

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

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

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

  904. 

  905.             // ----------------------

  906.             j = FluidSynthVoiceCount;

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

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

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

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

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

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

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

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

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

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

  917. 

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

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

  920.         }

  921. 

  922.         // ---------------------------------------

  923. 

  924.         // plugin hints

  925.         pData->hints  = 0x0;

  926.         pData->hints |= PLUGIN_IS_SYNTH;

  927.         pData->hints |= PLUGIN_CAN_VOLUME;

  928.         pData->hints |= PLUGIN_USES_MULTI_PROGS;

  929. 

  930.         if (! kUse16Outs)

  931.             pData->hints |= PLUGIN_CAN_BALANCE;

  932. 

  933.         // extra plugin hints

  934.         pData->extraHints  = 0x0;

  935.         pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  936. 

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

  938.         reloadPrograms(true);

  939. 

  940.         if (pData->active)

  941.             activate();

  942. 

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

  944.     }

  945. 

  946.     void reloadPrograms(const bool doInit) override

  947.     {

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

  949. 

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

  951.         bool hasDrums = false;

  952.         uint32_t drumIndex, drumProg;

  953.         drumIndex = drumProg = 0;

  954. 

  955.         // Delete old programs

  956.         pData->midiprog.clear();

  957. 

  958.         // Query new programs

  959.         uint32_t count = 0;

  960. 

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

  962.         {

  963. #if FLUIDSYNTH_VERSION_MAJOR < 2

  964.             fluid_preset_t f_preset;

  965. 

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

  967.             f_sfont->iteration_start(f_sfont);

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

  969.                 ++count;

  970. 

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

  972.             CARLA_SAFE_ASSERT_RETURN(count > 0,);

  973. 

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

  975. 

  976.             // Update data

  977.             int tmp;

  978.             uint32_t i = 0;

  979.             f_sfont->iteration_start(f_sfont);

  980. 

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

  982.             {

  983.                 CARLA_SAFE_ASSERT_BREAK(i < count);

  984. 

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

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

  987. 

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

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

  990. 

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

  992. #else

  993.             fluid_preset_t* f_preset;

  994. 

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

  996.             fluid_sfont_iteration_start(f_sfont);

  997.             for (; fluid_sfont_iteration_next(f_sfont);)

  998.                 ++count;

  999. 

  1000.             // sound kits must always have at least 1 midi-program

  1001.             CARLA_SAFE_ASSERT_RETURN(count > 0,);

  1002. 

  1003.             pData->midiprog.createNew(count);

  1004. 

  1005.             // Update data

  1006.             int tmp;

  1007.             uint32_t i = 0;

  1008.             fluid_sfont_iteration_start(f_sfont);

  1009. 

  1010.             for (; (f_preset = fluid_sfont_iteration_next(f_sfont));)

  1011.             {

  1012.                 CARLA_SAFE_ASSERT_BREAK(i < count);

  1013. 

  1014.                 tmp = fluid_preset_get_banknum(f_preset);

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

  1016. 

  1017.                 tmp = fluid_preset_get_num(f_preset);

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

  1019. 

  1020.                 pData->midiprog.data[i].name = carla_strdup(fluid_preset_get_name(f_preset));

  1021. #endif

  1022. 

  1023.                 if (pData->midiprog.data[i].bank == 128 && ! hasDrums)

  1024.                 {

  1025.                     hasDrums  = true;

  1026.                     drumIndex = i;

  1027.                     drumProg  = pData->midiprog.data[i].program;

  1028.                 }

  1029. 

  1030.                 ++i;

  1031.             }

  1032.         }

  1033.         else

  1034.         {

  1035.             // failing means 0 midi-programs, it shouldn't happen!

  1036.             carla_safe_assert("fluid_sfont_t* const f_sfont = fluid_synth_get_sfont_by_id(fSynth, fSynthId)", __FILE__, __LINE__);

  1037.             return;

  1038.         }

  1039. 

  1040.         if (doInit)

  1041.         {

  1042.             fluid_synth_program_reset(fSynth);

  1043. 

  1044.             // select first program, or 128 for ch10

  1045.             for (int i=0; i < MAX_MIDI_CHANNELS && i != 9; ++i)

  1046.             {

  1047.                 fluid_synth_set_channel_type(fSynth, i, CHANNEL_TYPE_MELODIC);

  1048.                 fluid_synth_program_select(fSynth, i, fSynthId, pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1049. 

  1050.                 fCurMidiProgs[i] = 0;

  1051.             }

  1052. 

  1053.             if (hasDrums)

  1054.             {

  1055.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_DRUM);

  1056.                 fluid_synth_program_select(fSynth, 9, fSynthId, 128, drumProg);

  1057. 

  1058.                 fCurMidiProgs[9] = static_cast<int32_t>(drumIndex);

  1059.             }

  1060.             else

  1061.             {

  1062.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_MELODIC);

  1063.                 fluid_synth_program_select(fSynth, 9, fSynthId, pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1064. 

  1065.                 fCurMidiProgs[9] = 0;

  1066.             }

  1067. 

  1068.             pData->midiprog.current = 0;

  1069.         }

  1070.         else

  1071.         {

  1072.             pData->engine->callback(true, true, ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0, 0.0f, nullptr);

  1073.         }

  1074.     }

  1075. 

  1076.     // -------------------------------------------------------------------

  1077.     // Plugin processing

  1078. 

  1079.     void process(const float* const* const, float** const audioOut,

  1080.                  const float* const*, float**, const uint32_t frames) override

  1081.     {

  1082.         // --------------------------------------------------------------------------------------------------------

  1083.         // Check if active

  1084. 

  1085.         if (! pData->active)

  1086.         {

  1087.             // disable any output sound

  1088.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1089.                 carla_zeroFloats(audioOut[i], frames);

  1090.             return;

  1091.         }

  1092. 

  1093.         // --------------------------------------------------------------------------------------------------------

  1094.         // Check if needs reset

  1095. 

  1096.         if (pData->needsReset)

  1097.         {

  1098.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1099.             {

  1100.                 for (int i=0; i < MAX_MIDI_CHANNELS; ++i)

  1101.                 {

  1102.                     fluid_synth_all_notes_off(fSynth, i);

  1103.                     fluid_synth_all_sounds_off(fSynth, i);

  1104.                 }

  1105.             }

  1106.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1107.             {

  1108.                 for (int i=0; i < MAX_MIDI_NOTE; ++i)

  1109.                     fluid_synth_noteoff(fSynth, pData->ctrlChannel, i);

  1110.             }

  1111. 

  1112.             pData->needsReset = false;

  1113.         }

  1114. 

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

  1116.         // Event Input and Processing

  1117. 

  1118.         {

  1119.             // ----------------------------------------------------------------------------------------------------

  1120.             // MIDI Input (External)

  1121. 

  1122.             if (pData->extNotes.mutex.tryLock())

  1123.             {

  1124.                 for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin2(); it.valid(); it.next())

  1125.                 {

  1126.                     const ExternalMidiNote& note(it.getValue(kExternalMidiNoteFallback));

  1127.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1128. 

  1129.                     if (note.velo > 0)

  1130.                         fluid_synth_noteon(fSynth, note.channel, note.note, note.velo);

  1131.                     else

  1132.                         fluid_synth_noteoff(fSynth,note.channel, note.note);

  1133.                 }

  1134. 

  1135.                 pData->extNotes.data.clear();

  1136.                 pData->extNotes.mutex.unlock();

  1137. 

  1138.             } // End of MIDI Input (External)

  1139. 

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

  1141.             // Event Input (System)

  1142. 

  1143. #ifndef BUILD_BRIDGE

  1144.             bool allNotesOffSent = false;

  1145. #endif

  1146.             uint32_t timeOffset = 0;

  1147. 

  1148.             uint32_t nextBankIds[MAX_MIDI_CHANNELS] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 };

  1149. 

  1150.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1151.                 nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1152. 

  1153.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1154.             {

  1155.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1156. 

  1157.                 uint32_t eventTime = event.time;

  1158.                 CARLA_SAFE_ASSERT_UINT2_CONTINUE(eventTime < frames, eventTime, frames);

  1159. 

  1160.                 if (eventTime < timeOffset)

  1161.                 {

  1162.                     carla_stderr2("Timing error, eventTime:%u < timeOffset:%u for '%s'",

  1163.                                   eventTime, timeOffset, pData->name);

  1164.                     eventTime = timeOffset;

  1165.                 }

  1166.                 else if (eventTime > timeOffset)

  1167.                 {

  1168.                     if (processSingle(audioOut, eventTime - timeOffset, timeOffset))

  1169.                     {

  1170.                         timeOffset = eventTime;

  1171. 

  1172.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1173.                             nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1174.                     }

  1175.                 }

  1176. 

  1177.                 // Control change

  1178.                 switch (event.type)

  1179.                 {

  1180.                 case kEngineEventTypeNull:

  1181.                     break;

  1182. 

  1183.                 case kEngineEventTypeControl:

  1184.                 {

  1185.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1186. 

  1187.                     switch (ctrlEvent.type)

  1188.                     {

  1189.                     case kEngineControlEventTypeNull:

  1190.                         break;

  1191. 

  1192.                     case kEngineControlEventTypeParameter:

  1193.                     {

  1194.                         float value;

  1195. 

  1196. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  1197.                         // Control backend stuff

  1198.                         if (event.channel == pData->ctrlChannel)

  1199.                         {

  1200.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1201.                             {

  1202.                                 value = ctrlEvent.value;

  1203.                                 setDryWetRT(value, true);

  1204.                             }

  1205. 

  1206.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1207.                             {

  1208.                                 value = ctrlEvent.value*127.0f/100.0f;

  1209.                                 setVolumeRT(value, true);

  1210.                             }

  1211. 

  1212.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1213.                             {

  1214.                                 float left, right;

  1215.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1216. 

  1217.                                 if (value < 0.0f)

  1218.                                 {

  1219.                                     left  = -1.0f;

  1220.                                     right = (value*2.0f)+1.0f;

  1221.                                 }

  1222.                                 else if (value > 0.0f)

  1223.                                 {

  1224.                                     left  = (value*2.0f)-1.0f;

  1225.                                     right = 1.0f;

  1226.                                 }

  1227.                                 else

  1228.                                 {

  1229.                                     left  = -1.0f;

  1230.                                     right = 1.0f;

  1231.                                 }

  1232. 

  1233.                                 setBalanceLeftRT(left, true);

  1234.                                 setBalanceRightRT(right, true);

  1235.                             }

  1236.                         }

  1237. #endif

  1238.                         // Control plugin parameters

  1239.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1240.                         {

  1241.                             if (pData->param.data[k].midiChannel != event.channel)

  1242.                                 continue;

  1243.                             if (pData->param.data[k].mappedControlIndex != ctrlEvent.param)

  1244.                                 continue;

  1245.                             if (pData->param.data[k].hints != PARAMETER_INPUT)

  1246.                                 continue;

  1247.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1248.                                 continue;

  1249. 

  1250.                             value = pData->param.getFinalUnnormalizedValue(k, ctrlEvent.value);

  1251.                             setParameterValueRT(k, value, true);

  1252.                         }

  1253. 

  1254.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param < MAX_MIDI_VALUE)

  1255.                         {

  1256.                             fluid_synth_cc(fSynth, event.channel, ctrlEvent.param, int(ctrlEvent.value*127.0f));

  1257.                         }

  1258.                         break;

  1259.                     }

  1260. 

  1261.                     case kEngineControlEventTypeMidiBank:

  1262.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1263.                             nextBankIds[event.channel] = ctrlEvent.param;

  1264.                         break;

  1265. 

  1266.                     case kEngineControlEventTypeMidiProgram:

  1267.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1268.                         {

  1269.                             const uint32_t bankId(nextBankIds[event.channel]);

  1270.                             const uint32_t progId(ctrlEvent.param);

  1271. 

  1272.                             // TODO int32_t midiprog.find(bank, prog)

  1273.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1274.                             {

  1275.                                 if (pData->midiprog.data[k].bank == bankId && pData->midiprog.data[k].program == progId)

  1276.                                 {

  1277.                                     fluid_synth_program_select(fSynth, event.channel, fSynthId, bankId, progId);

  1278.                                     fCurMidiProgs[event.channel] = static_cast<int32_t>(k);

  1279. 

  1280.                                     if (event.channel == pData->ctrlChannel)

  1281.                                     {

  1282.                                         pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange,

  1283.                                                                true,

  1284.                                                                static_cast<int32_t>(k),

  1285.                                                                0, 0, 0.0f);

  1286.                                     }

  1287. 

  1288.                                     break;

  1289.                                 }

  1290.                             }

  1291.                         }

  1292.                         break;

  1293. 

  1294.                     case kEngineControlEventTypeAllSoundOff:

  1295.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1296.                             fluid_synth_all_sounds_off(fSynth, event.channel);

  1297.                         break;

  1298. 

  1299.                     case kEngineControlEventTypeAllNotesOff:

  1300.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1301.                         {

  1302. #ifndef BUILD_BRIDGE

  1303.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1304.                             {

  1305.                                 allNotesOffSent = true;

  1306.                                 postponeRtAllNotesOff();

  1307.                             }

  1308. #endif

  1309. 

  1310.                             fluid_synth_all_notes_off(fSynth, event.channel);

  1311.                         }

  1312.                         break;

  1313.                     }

  1314. 

  1315.                     break;

  1316.                 }

  1317. 

  1318.                 case kEngineEventTypeMidi: {

  1319.                     const EngineMidiEvent& midiEvent(event.midi);

  1320. 

  1321.                     if (midiEvent.size > EngineMidiEvent::kDataSize)

  1322.                         continue;

  1323. 

  1324.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1325. 

  1326.                     // Fix bad note-off

  1327.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1328.                         status = MIDI_STATUS_NOTE_OFF;

  1329. 

  1330.                     switch (status)

  1331.                     {

  1332.                     case MIDI_STATUS_NOTE_OFF: {

  1333.                         const uint8_t note = midiEvent.data[1];

  1334. 

  1335.                         fluid_synth_noteoff(fSynth, event.channel, note);

  1336. 

  1337.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, true, event.channel, note, 0, 0.0f);

  1338.                         break;

  1339.                     }

  1340. 

  1341.                     case MIDI_STATUS_NOTE_ON: {

  1342.                         const uint8_t note = midiEvent.data[1];

  1343.                         const uint8_t velo = midiEvent.data[2];

  1344. 

  1345.                         fluid_synth_noteon(fSynth, event.channel, note, velo);

  1346. 

  1347.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, true, event.channel, note, velo, 0.0f);

  1348.                         break;

  1349.                     }

  1350. 

  1351.                     case MIDI_STATUS_POLYPHONIC_AFTERTOUCH:

  1352.                         if (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH)

  1353.                         {

  1354.                             //const uint8_t note     = midiEvent.data[1];

  1355.                             //const uint8_t pressure = midiEvent.data[2];

  1356. 

  1357.                             // not in fluidsynth API

  1358.                         }

  1359.                         break;

  1360. 

  1361.                     case MIDI_STATUS_CONTROL_CHANGE:

  1362.                         if (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1363.                         {

  1364.                             const uint8_t control = midiEvent.data[1];

  1365.                             const uint8_t value   = midiEvent.data[2];

  1366. 

  1367.                             fluid_synth_cc(fSynth, event.channel, control, value);

  1368.                         }

  1369.                         break;

  1370. 

  1371.                     case MIDI_STATUS_CHANNEL_PRESSURE:

  1372.                         if (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE)

  1373.                         {

  1374.                             const uint8_t pressure = midiEvent.data[1];

  1375. 

  1376.                             fluid_synth_channel_pressure(fSynth, event.channel, pressure);;

  1377.                         }

  1378.                         break;

  1379. 

  1380.                     case MIDI_STATUS_PITCH_WHEEL_CONTROL:

  1381.                         if (pData->options & PLUGIN_OPTION_SEND_PITCHBEND)

  1382.                         {

  1383.                             const uint8_t lsb = midiEvent.data[1];

  1384.                             const uint8_t msb = midiEvent.data[2];

  1385.                             const int   value = ((msb << 7) | lsb);

  1386. 

  1387.                             fluid_synth_pitch_bend(fSynth, event.channel, value);

  1388.                         }

  1389.                         break;

  1390. 

  1391.                     default:

  1392.                         continue;

  1393.                         break;

  1394.                     } // switch (status)

  1395.                 } break;

  1396.                 } // switch (event.type)

  1397.             }

  1398. 

  1399.             pData->postRtEvents.trySplice();

  1400. 

  1401.             if (frames > timeOffset)

  1402.                 processSingle(audioOut, frames - timeOffset, timeOffset);

  1403. 

  1404.         } // End of Event Input and Processing

  1405. 

  1406. #ifndef BUILD_BRIDGE

  1407.         // --------------------------------------------------------------------------------------------------------

  1408.         // Control Output

  1409. 

  1410.         {

  1411.             uint32_t k = FluidSynthVoiceCount;

  1412.             fParamBuffers[k] = float(fluid_synth_get_active_voice_count(fSynth));

  1413.             pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1414. 

  1415.             if (pData->param.data[k].mappedControlIndex > 0)

  1416.             {

  1417.                 float value(pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]));

  1418.                 pData->event.portOut->writeControlEvent(0,

  1419.                                                         pData->param.data[k].midiChannel,

  1420.                                                         kEngineControlEventTypeParameter,

  1421.                                                         static_cast<uint16_t>(pData->param.data[k].mappedControlIndex),

  1422.                                                         value);

  1423.             }

  1424. 

  1425.         } // End of Control Output

  1426. #endif

  1427.     }

  1428. 

  1429.     bool processSingle(float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1430.     {

  1431.         CARLA_SAFE_ASSERT_RETURN(outBuffer != nullptr, false);

  1432.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1433. 

  1434.         // --------------------------------------------------------------------------------------------------------

  1435.         // Try lock, silence otherwise

  1436. 

  1437. #ifndef STOAT_TEST_BUILD

  1438.         if (pData->engine->isOffline())

  1439.         {

  1440.             pData->singleMutex.lock();

  1441.         }

  1442.         else

  1443. #endif

  1444.         if (! pData->singleMutex.tryLock())

  1445.         {

  1446.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1447.             {

  1448.                 for (uint32_t k=0; k < frames; ++k)

  1449.                     outBuffer[i][k+timeOffset] = 0.0f;

  1450.             }

  1451. 

  1452.             return false;

  1453.         }

  1454. 

  1455.         // --------------------------------------------------------------------------------------------------------

  1456.         // Fill plugin buffers and Run plugin

  1457. 

  1458.         if (kUse16Outs)

  1459.         {

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

  1461.                 carla_zeroFloats(fAudio16Buffers[i], frames);

  1462. 

  1463.             // FIXME use '32' or '16' instead of outs

  1464.             fluid_synth_process(fSynth, static_cast<int>(frames),

  1465.                                 0, nullptr,

  1466.                                 static_cast<int>(pData->audioOut.count), fAudio16Buffers);

  1467.         }

  1468.         else

  1469.         {

  1470.             fluid_synth_write_float(fSynth, static_cast<int>(frames),

  1471.                                     outBuffer[0] + timeOffset, 0, 1,

  1472.                                     outBuffer[1] + timeOffset, 0, 1);

  1473.         }

  1474. 

  1475. #ifndef BUILD_BRIDGE

  1476.         // --------------------------------------------------------------------------------------------------------

  1477.         // Post-processing (volume and balance)

  1478. 

  1479.         {

  1480.             // note - balance not possible with kUse16Outs, so we can safely skip fAudioOutBuffers

  1481.             const bool doVolume  = (pData->hints & PLUGIN_CAN_VOLUME) != 0 && carla_isNotEqual(pData->postProc.volume, 1.0f);

  1482.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_isEqual(pData->postProc.balanceLeft, -1.0f) && carla_isEqual(pData->postProc.balanceRight, 1.0f));

  1483. 

  1484.             float oldBufLeft[doBalance ? frames : 1];

  1485. 

  1486.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1487.             {

  1488.                 // Balance

  1489.                 if (doBalance)

  1490.                 {

  1491.                     if (i % 2 == 0)

  1492.                         carla_copyFloats(oldBufLeft, outBuffer[i]+timeOffset, frames);

  1493. 

  1494.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1495.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1496. 

  1497.                     for (uint32_t k=0; k < frames; ++k)

  1498.                     {

  1499.                         if (i % 2 == 0)

  1500.                         {

  1501.                             // left

  1502.                             outBuffer[i][k+timeOffset]  = oldBufLeft[k]                * (1.0f - balRangeL);

  1503.                             outBuffer[i][k+timeOffset] += outBuffer[i+1][k+timeOffset] * (1.0f - balRangeR);

  1504.                         }

  1505.                         else

  1506.                         {

  1507.                             // right

  1508.                             outBuffer[i][k+timeOffset]  = outBuffer[i][k+timeOffset] * balRangeR;

  1509.                             outBuffer[i][k+timeOffset] += oldBufLeft[k]              * balRangeL;

  1510.                         }

  1511.                     }

  1512.                 }

  1513. 

  1514.                 // Volume

  1515.                 if (kUse16Outs)

  1516.                 {

  1517.                     for (uint32_t k=0; k < frames; ++k)

  1518.                         outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k] * pData->postProc.volume;

  1519.                 }

  1520.                 else if (doVolume)

  1521.                 {

  1522.                     for (uint32_t k=0; k < frames; ++k)

  1523.                         outBuffer[i][k+timeOffset] *= pData->postProc.volume;

  1524.                 }

  1525.             }

  1526. 

  1527.         } // End of Post-processing

  1528. #else

  1529.         if (kUse16Outs)

  1530.         {

  1531.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1532.             {

  1533.                 for (uint32_t k=0; k < frames; ++k)

  1534.                     outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k];

  1535.             }

  1536.         }

  1537. #endif

  1538. 

  1539.         // --------------------------------------------------------------------------------------------------------

  1540. 

  1541.         pData->singleMutex.unlock();

  1542.         return true;

  1543.     }

  1544. 

  1545.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1546.     {

  1547.         if (! kUse16Outs)

  1548.             return;

  1549. 

  1550.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1551.         {

  1552.             if (fAudio16Buffers[i] != nullptr)

  1553.                 delete[] fAudio16Buffers[i];

  1554.             fAudio16Buffers[i] = new float[newBufferSize];

  1555.         }

  1556.     }

  1557. 

  1558.     void sampleRateChanged(const double newSampleRate) override

  1559.     {

  1560.         CARLA_SAFE_ASSERT_RETURN(fSettings != nullptr,);

  1561.         fluid_settings_setnum(fSettings, "synth.sample-rate", newSampleRate);

  1562. 

  1563.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

  1564.         fluid_synth_set_sample_rate(fSynth, float(newSampleRate));

  1565.     }

  1566. 

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

  1568.     // Plugin buffers

  1569. 

  1570.     void clearBuffers() noexcept override

  1571.     {

  1572.         carla_debug("CarlaPluginFluidSynth::clearBuffers() - start");

  1573. 

  1574.         if (fAudio16Buffers != nullptr)

  1575.         {

  1576.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1577.             {

  1578.                 if (fAudio16Buffers[i] != nullptr)

  1579.                 {

  1580.                     delete[] fAudio16Buffers[i];

  1581.                     fAudio16Buffers[i] = nullptr;

  1582.                 }

  1583.             }

  1584. 

  1585.             delete[] fAudio16Buffers;

  1586.             fAudio16Buffers = nullptr;

  1587.         }

  1588. 

  1589.         CarlaPlugin::clearBuffers();

  1590. 

  1591.         carla_debug("CarlaPluginFluidSynth::clearBuffers() - end");

  1592.     }

  1593. 

  1594.     // -------------------------------------------------------------------

  1595. 

  1596.     const void* getExtraStuff() const noexcept override

  1597.     {

  1598.         static const char xtrue[]  = "true";

  1599.         static const char xfalse[] = "false";

  1600.         return kUse16Outs ? xtrue : xfalse;

  1601.     }

  1602. 

  1603.     // -------------------------------------------------------------------

  1604. 

  1605.     bool init(const char* const filename, const char* const name, const char* const label, const uint options)

  1606.     {

  1607.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  1608. 

  1609.         // ---------------------------------------------------------------

  1610.         // first checks

  1611. 

  1612.         if (pData->client != nullptr)

  1613.         {

  1614.             pData->engine->setLastError("Plugin client is already registered");

  1615.             return false;

  1616.         }

  1617. 

  1618.         if (fSynth == nullptr)

  1619.         {

  1620.             pData->engine->setLastError("null synth");

  1621.             return false;

  1622.         }

  1623. 

  1624.         if (filename == nullptr || filename[0] == '\0')

  1625.         {

  1626.             pData->engine->setLastError("null filename");

  1627.             return false;

  1628.         }

  1629. 

  1630.         if (label == nullptr || label[0] == '\0')

  1631.         {

  1632.             pData->engine->setLastError("null label");

  1633.             return false;

  1634.         }

  1635. 

  1636.         // ---------------------------------------------------------------

  1637.         // open soundfont

  1638. 

  1639.         const int synthId(fluid_synth_sfload(fSynth, filename, 0));

  1640. 

  1641.         if (synthId < 0)

  1642.         {

  1643.             pData->engine->setLastError("Failed to load SoundFont file");

  1644.             return false;

  1645.         }

  1646. 

  1647.         fSynthId = static_cast<uint>(synthId);

  1648. 

  1649.         // ---------------------------------------------------------------

  1650.         // get info

  1651. 

  1652.         CarlaString label2(label);

  1653. 

  1654.         if (kUse16Outs && ! label2.endsWith(" (16 outs)"))

  1655.             label2 += " (16 outs)";

  1656. 

  1657.         fLabel          = label2.dup();

  1658.         pData->filename = carla_strdup(filename);

  1659. 

  1660.         if (name != nullptr && name[0] != '\0')

  1661.             pData->name = pData->engine->getUniquePluginName(name);

  1662.         else

  1663.             pData->name = pData->engine->getUniquePluginName(label);

  1664. 

  1665.         // ---------------------------------------------------------------

  1666.         // register client

  1667. 

  1668.         pData->client = pData->engine->addClient(this);

  1669. 

  1670.         if (pData->client == nullptr || ! pData->client->isOk())

  1671.         {

  1672.             pData->engine->setLastError("Failed to register plugin client");

  1673.             return false;

  1674.         }

  1675. 

  1676.         // ---------------------------------------------------------------

  1677.         // set options

  1678. 

  1679.         pData->options = 0x0;

  1680. 

  1681.         if (isPluginOptionEnabled(options, PLUGIN_OPTION_SEND_CONTROL_CHANGES))

  1682.             pData->options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  1683.         if (isPluginOptionEnabled(options, PLUGIN_OPTION_SEND_CHANNEL_PRESSURE))

  1684.             pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1685.         if (isPluginOptionEnabled(options, PLUGIN_OPTION_SEND_PITCHBEND))

  1686.             pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  1687.         if (isPluginOptionEnabled(options, PLUGIN_OPTION_SEND_ALL_SOUND_OFF))

  1688.             pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1689.         if (isPluginOptionEnabled(options, PLUGIN_OPTION_MAP_PROGRAM_CHANGES))

  1690.             pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1691. 

  1692.         return true;

  1693.     }

  1694. 

  1695. private:

  1696.     void initializeFluidDefaultsIfNeeded()

  1697.     {

  1698.         if (sFluidDefaultsStored)

  1699.             return;

  1700.         sFluidDefaultsStored = true;

  1701.         // reverb defaults

  1702.         sFluidDefaults[FluidSynthReverbOnOff] = 1.0f;

  1703. #if FLUIDSYNTH_VERSION_MAJOR < 2

  1704.         sFluidDefaults[FluidSynthReverbRoomSize] = FLUID_REVERB_DEFAULT_ROOMSIZE;

  1705.         sFluidDefaults[FluidSynthReverbDamp] = FLUID_REVERB_DEFAULT_DAMP;

  1706.         sFluidDefaults[FluidSynthReverbLevel] = FLUID_REVERB_DEFAULT_LEVEL;

  1707.         sFluidDefaults[FluidSynthReverbWidth] = FLUID_REVERB_DEFAULT_WIDTH;

  1708. #else

  1709.         double reverbVal;

  1710.         fluid_settings_getnum_default(fSettings, "synth.reverb.room-size", &reverbVal);

  1711.         sFluidDefaults[FluidSynthReverbRoomSize] = reverbVal;

  1712.         fluid_settings_getnum_default(fSettings, "synth.reverb.damp", &reverbVal);

  1713.         sFluidDefaults[FluidSynthReverbDamp] = reverbVal;

  1714.         fluid_settings_getnum_default(fSettings, "synth.reverb.level", &reverbVal);

  1715.         sFluidDefaults[FluidSynthReverbLevel] = reverbVal;

  1716.         fluid_settings_getnum_default(fSettings, "synth.reverb.width", &reverbVal);

  1717.         sFluidDefaults[FluidSynthReverbWidth] = reverbVal;

  1718. #endif

  1719. 

  1720.         // chorus defaults

  1721.         sFluidDefaults[FluidSynthChorusOnOff] = 1.0f;

  1722. #if FLUIDSYNTH_VERSION_MAJOR < 2

  1723.         sFluidDefaults[FluidSynthChorusNr] = FLUID_CHORUS_DEFAULT_N;

  1724.         sFluidDefaults[FluidSynthChorusLevel] = FLUID_CHORUS_DEFAULT_LEVEL;

  1725.         sFluidDefaults[FluidSynthChorusSpeedHz] = FLUID_CHORUS_DEFAULT_SPEED;

  1726.         sFluidDefaults[FluidSynthChorusDepthMs] = FLUID_CHORUS_DEFAULT_DEPTH;

  1727.         sFluidDefaults[FluidSynthChorusType] = FLUID_CHORUS_DEFAULT_TYPE;

  1728. #else

  1729.         double chorusVal;

  1730.         fluid_settings_getnum_default(fSettings, "synth.chorus.nr", &chorusVal);

  1731.         sFluidDefaults[FluidSynthChorusNr] = chorusVal;

  1732.         fluid_settings_getnum_default(fSettings, "synth.chorus.level", &chorusVal);

  1733.         sFluidDefaults[FluidSynthChorusLevel] = chorusVal;

  1734.         fluid_settings_getnum_default(fSettings, "synth.chorus.speed", &chorusVal);

  1735.         sFluidDefaults[FluidSynthChorusSpeedHz] = chorusVal;

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

  1737.         sFluidDefaults[FluidSynthChorusDepthMs] = chorusVal;

  1738.         // There is no settings for chorus default type

  1739.         sFluidDefaults[FluidSynthChorusType] = (float)fluid_synth_get_chorus_type(fSynth);

  1740. #endif

  1741. 

  1742.         // misc. defaults

  1743.         sFluidDefaults[FluidSynthInterpolation] = FLUID_INTERP_DEFAULT;

  1744.     }

  1745. 

  1746.     enum FluidSynthParameters {

  1747.         FluidSynthReverbOnOff    = 0,

  1748.         FluidSynthReverbRoomSize = 1,

  1749.         FluidSynthReverbDamp     = 2,

  1750.         FluidSynthReverbLevel    = 3,

  1751.         FluidSynthReverbWidth    = 4,

  1752.         FluidSynthChorusOnOff    = 5,

  1753.         FluidSynthChorusNr       = 6,

  1754.         FluidSynthChorusLevel    = 7,

  1755.         FluidSynthChorusSpeedHz  = 8,

  1756.         FluidSynthChorusDepthMs  = 9,

  1757.         FluidSynthChorusType     = 10,

  1758.         FluidSynthPolyphony      = 11,

  1759.         FluidSynthInterpolation  = 12,

  1760.         FluidSynthVoiceCount     = 13,

  1761.         FluidSynthParametersMax  = 14

  1762.     };

  1763. 

  1764.     const bool kUse16Outs;

  1765. 

  1766.     fluid_settings_t* fSettings;

  1767.     fluid_synth_t*    fSynth;

  1768.     uint              fSynthId;

  1769. 

  1770.     float** fAudio16Buffers;

  1771.     float   fParamBuffers[FluidSynthParametersMax];

  1772. 

  1773.     static bool  sFluidDefaultsStored;

  1774.     static float sFluidDefaults[FluidSynthParametersMax];

  1775. 

  1776.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  1777. 

  1778.     const char* fLabel;

  1779. 

  1780.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginFluidSynth)

  1781. };

  1782. 

  1783. bool CarlaPluginFluidSynth::sFluidDefaultsStored = false;

  1784. float CarlaPluginFluidSynth::sFluidDefaults[FluidSynthParametersMax] = {

  1785.     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,

  1786. };

  1787. 

  1788. CARLA_BACKEND_END_NAMESPACE

  1789. 

  1790. #endif // HAVE_FLUIDSYNTH

  1791. 

  1792. CARLA_BACKEND_START_NAMESPACE

  1793. 

  1794. // -------------------------------------------------------------------------------------------------------------------

  1795. 

  1796. CarlaPlugin* CarlaPlugin::newFluidSynth(const Initializer& init, const bool use16Outs)

  1797. {

  1798.     carla_debug("CarlaPlugin::newFluidSynth({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "}, %s)", init.engine, init.filename, init.name, init.label, init.uniqueId, bool2str(use16Outs));

  1799. 

  1800. #ifdef HAVE_FLUIDSYNTH

  1801.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && use16Outs)

  1802.     {

  1803.         init.engine->setLastError("Carla's rack mode can only work with Stereo modules,"

  1804.                                   "please choose the 2-channel only SoundFont version");

  1805.         return nullptr;

  1806.     }

  1807. 

  1808.     if (! fluid_is_soundfont(init.filename))

  1809.     {

  1810.         init.engine->setLastError("Requested file is not a valid SoundFont");

  1811.         return nullptr;

  1812.     }

  1813. 

  1814.     CarlaPluginFluidSynth* const plugin(new CarlaPluginFluidSynth(init.engine, init.id,  use16Outs));

  1815. 

  1816.     if (! plugin->init(init.filename, init.name, init.label, init.options))

  1817.     {

  1818.         delete plugin;

  1819.         return nullptr;

  1820.     }

  1821. 

  1822.     return plugin;

  1823. #else

  1824.     init.engine->setLastError("fluidsynth support not available");

  1825.     return nullptr;

  1826. 

  1827.     // unused

  1828.     (void)use16Outs;

  1829. #endif

  1830. }

  1831. 

  1832. // -------------------------------------------------------------------------------------------------------------------

  1833. 

  1834. CARLA_BACKEND_END_NAMESPACE