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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() 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", fCurMidiProgs[0],  fCurMidiProgs[1],  fCurMidiProgs[2],  fCurMidiProgs[3],

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

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

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

  388. 

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

  390.     }

  391. 

  392.     // -------------------------------------------------------------------

  393.     // Set data (internal stuff)

  394. 

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

  396.     {

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

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

  399. 

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

  401.     }

  402. 

  403.     // -------------------------------------------------------------------

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

  405. 

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

  407.     {

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

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

  410. 

  411.         float fixedValue;

  412. 

  413.         {

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

  415.             fixedValue = setParameterValueInFluidSynth(parameterId, value);

  416. 

  417.         }

  418. 

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

  420.     }

  421. 

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

  423.     {

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

  425. 

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

  427.     }

  428. 

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

  430.     {

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

  432. 

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

  434.         fParamBuffers[parameterId] = fixedValue;

  435. 

  436.         switch (parameterId)

  437.         {

  438.         case FluidSynthReverbOnOff:

  439.             try {

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

  441.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_reverb_on")

  442.             break;

  443. 

  444.         case FluidSynthReverbRoomSize:

  445.         case FluidSynthReverbDamp:

  446.         case FluidSynthReverbLevel:

  447.         case FluidSynthReverbWidth:

  448.             try {

  449.                 fluid_synth_set_reverb(fSynth,

  450.                                        fParamBuffers[FluidSynthReverbRoomSize],

  451.                                        fParamBuffers[FluidSynthReverbDamp],

  452.                                        fParamBuffers[FluidSynthReverbWidth],

  453.                                        fParamBuffers[FluidSynthReverbLevel]);

  454.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_reverb")

  455.             break;

  456. 

  457.         case FluidSynthChorusOnOff:

  458.             try {

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

  460.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_chorus_on")

  461.             break;

  462. 

  463.         case FluidSynthChorusNr:

  464.         case FluidSynthChorusLevel:

  465.         case FluidSynthChorusSpeedHz:

  466.         case FluidSynthChorusDepthMs:

  467.         case FluidSynthChorusType:

  468.             try {

  469.                 fluid_synth_set_chorus(fSynth,

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

  471.                                        fParamBuffers[FluidSynthChorusLevel],

  472.                                        fParamBuffers[FluidSynthChorusSpeedHz],

  473.                                        fParamBuffers[FluidSynthChorusDepthMs],

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

  475.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_chorus")

  476.             break;

  477. 

  478.         case FluidSynthPolyphony:

  479.             try {

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

  481.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_polyphony")

  482.             break;

  483. 

  484.         case FluidSynthInterpolation:

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

  486.             {

  487.                 try {

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

  489.                 } CARLA_SAFE_EXCEPTION_BREAK("fluid_synth_set_interp_method")

  490.             }

  491.             break;

  492. 

  493.         default:

  494.             break;

  495.         }

  496. 

  497.         return fixedValue;

  498.     }

  499. 

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

  501.     {

  502.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

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

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

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

  507. 

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

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

  510. 

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

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

  513. 

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

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

  516. 

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

  518. 

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

  520.         {

  521.             uint8_t channel = 0;

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

  523.             {

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

  525. 

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

  527.                 {

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

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

  530. 

  531. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  532.                     fluid_synth_program_select(fSynth,

  533.                                                static_cast<int>(channel),

  534.                                                fSynthId,

  535.                                                static_cast<int>(bank),

  536.                                                static_cast<int>(program));

  537. #else

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

  539. #endif

  540.                     fCurMidiProgs[channel] = index;

  541. 

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

  543.                     {

  544.                         pData->midiprog.current = index;

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

  546.                                                 ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED,

  547.                                                 pData->id,

  548.                                                 index,

  549.                                                 0, 0, 0.0f, nullptr);

  550.                     }

  551.                 }

  552. 

  553.                 ++channel;

  554.             }

  555.             CARLA_SAFE_ASSERT(channel == MAX_MIDI_CHANNELS);

  556.         }

  557. 

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

  559.     }

  560. 

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

  562.     {

  563.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

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

  566. 

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

  568.         {

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

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

  571. 

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

  573. 

  574.             try {

  575. #if FLUIDSYNTH_VERSION_MAJOR >= 2

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

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

  578. #else

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

  580. #endif

  581.             } CARLA_SAFE_EXCEPTION("fluid_synth_program_select")

  582. 

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

  584.         }

  585. 

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

  587.     }

  588. 

  589.     // FIXME: this is never used

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

  591.     {

  592.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

  594. 

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

  596.         {

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

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

  599. 

  600.             try {

  601. #if FLUIDSYNTH_VERSION_MAJOR >= 2

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

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

  604. #else

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

  606. #endif

  607.             } CARLA_SAFE_EXCEPTION("fluid_synth_program_select")

  608. 

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

  610.         }

  611. 

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

  613.     }

  614. 

  615.     // -------------------------------------------------------------------

  616.     // Set ui stuff

  617. 

  618.     // nothing

  619. 

  620.     // -------------------------------------------------------------------

  621.     // Plugin state

  622. 

  623.     void reload() override

  624.     {

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

  626.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

  628. 

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

  630. 

  631.         // Safely disable plugin for reload

  632.         const ScopedDisabler sd(this);

  633. 

  634.         if (pData->active)

  635.             deactivate();

  636. 

  637.         clearBuffers();

  638. 

  639.         uint32_t aOuts, params;

  640.         aOuts  = kUse16Outs ? 32 : 2;

  641.         params = FluidSynthParametersMax;

  642. 

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

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

  645. 

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

  647.         CarlaString portName;

  648. 

  649.         // ---------------------------------------

  650.         // Audio Outputs

  651. 

  652.         if (kUse16Outs)

  653.         {

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

  655.             {

  656.                 portName.clear();

  657. 

  658.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  659.                 {

  660.                     portName  = pData->name;

  661.                     portName += ":";

  662.                 }

  663. 

  664.                 portName += "out-";

  665. 

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

  667.                     portName += "0";

  668. 

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

  670. 

  671.                 if (i % 2 == 0)

  672.                     portName += "L";

  673.                 else

  674.                     portName += "R";

  675. 

  676.                 portName.truncate(portNameSize);

  677. 

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

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

  680.             }

  681. 

  682.             fAudio16Buffers = new float*[aOuts];

  683. 

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

  685.                 fAudio16Buffers[i] = nullptr;

  686.         }

  687.         else

  688.         {

  689.             // out-left

  690.             portName.clear();

  691. 

  692.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  693.             {

  694.                 portName  = pData->name;

  695.                 portName += ":";

  696.             }

  697. 

  698.             portName += "out-left";

  699.             portName.truncate(portNameSize);

  700. 

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

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

  703. 

  704.             // out-right

  705.             portName.clear();

  706. 

  707.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  708.             {

  709.                 portName  = pData->name;

  710.                 portName += ":";

  711.             }

  712. 

  713.             portName += "out-right";

  714.             portName.truncate(portNameSize);

  715. 

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

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

  718.         }

  719. 

  720.         // ---------------------------------------

  721.         // Event Input

  722. 

  723.         {

  724.             portName.clear();

  725. 

  726.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  727.             {

  728.                 portName  = pData->name;

  729.                 portName += ":";

  730.             }

  731. 

  732.             portName += "events-in";

  733.             portName.truncate(portNameSize);

  734. 

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

  736.         }

  737. 

  738.         // ---------------------------------------

  739.         // Event Output

  740. 

  741.         {

  742.             portName.clear();

  743. 

  744.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  745.             {

  746.                 portName  = pData->name;

  747.                 portName += ":";

  748.             }

  749. 

  750.             portName += "events-out";

  751.             portName.truncate(portNameSize);

  752. 

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

  754.         }

  755. 

  756.         // ---------------------------------------

  757.         // Parameters

  758. 

  759.         {

  760.             int j;

  761. 

  762.             // ----------------------

  763.             j = FluidSynthReverbOnOff;

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

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

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

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

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

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

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

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

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

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

  774. 

  775.             // ----------------------

  776.             j = FluidSynthReverbRoomSize;

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

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

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

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

  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 = FluidSynthReverbDamp;

  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 = 1.0f;

  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 = FluidSynthReverbLevel;

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

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

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

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

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

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

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

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

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

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

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

  814. 

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

  816.             j = FluidSynthReverbWidth;

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

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

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

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

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

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

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

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

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

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

  827. 

  828.             // ----------------------

  829.             j = FluidSynthChorusOnOff;

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

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

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

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

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

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

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

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

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

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

  840. 

  841.             // ----------------------

  842.             j = FluidSynthChorusNr;

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

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

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

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

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

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

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

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

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

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

  853. 

  854.             // ----------------------

  855.             j = FluidSynthChorusLevel;

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

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

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

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

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

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

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

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

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

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

  866. 

  867.             // ----------------------

  868.             j = FluidSynthChorusSpeedHz;

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

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

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

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

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

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

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

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

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

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

  879. 

  880.             // ----------------------

  881.             j = FluidSynthChorusDepthMs;

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

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

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

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

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

  887. #if FLUIDSYNTH_VERSION_MAJOR >= 2

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

  889. #else

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

  891. #endif

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

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

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

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

  896. 

  897.             // ----------------------

  898.             j = FluidSynthChorusType;

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

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

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

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

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

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

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

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

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

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

  909. 

  910.             // ----------------------

  911.             j = FluidSynthPolyphony;

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

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

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

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

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

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

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

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

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

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

  922. 

  923.             // ----------------------

  924.             j = FluidSynthInterpolation;

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

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

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

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

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

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

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

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

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

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

  935. 

  936.             // ----------------------

  937.             j = FluidSynthVoiceCount;

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

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

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

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

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

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

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

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

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

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

  948. 

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

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

  951.         }

  952. 

  953.         // ---------------------------------------

  954. 

  955.         // plugin hints

  956.         pData->hints  = 0x0;

  957.         pData->hints |= PLUGIN_IS_SYNTH;

  958.         pData->hints |= PLUGIN_CAN_VOLUME;

  959.         pData->hints |= PLUGIN_USES_MULTI_PROGS;

  960. 

  961.         if (! kUse16Outs)

  962.             pData->hints |= PLUGIN_CAN_BALANCE;

  963. 

  964.         // extra plugin hints

  965.         pData->extraHints  = 0x0;

  966.         pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  967. 

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

  969.         reloadPrograms(true);

  970. 

  971.         if (pData->active)

  972.             activate();

  973. 

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

  975.     }

  976. 

  977.     void reloadPrograms(const bool doInit) override

  978.     {

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

  980. 

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

  982.         bool hasDrums = false;

  983.         uint32_t drumIndex, drumProg;

  984.         drumIndex = drumProg = 0;

  985. 

  986.         // Delete old programs

  987.         pData->midiprog.clear();

  988. 

  989.         // Query new programs

  990.         uint32_t count = 0;

  991. 

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

  993.         {

  994. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  995.             fluid_preset_t* f_preset;

  996. 

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

  998.             fluid_sfont_iteration_start(f_sfont);

  999.             for (; fluid_sfont_iteration_next(f_sfont);)

  1000.                 ++count;

  1001. 

  1002.             // sound kits must always have at least 1 midi-program

  1003.             CARLA_SAFE_ASSERT_RETURN(count > 0,);

  1004. 

  1005.             pData->midiprog.createNew(count);

  1006. 

  1007.             // Update data

  1008.             int tmp;

  1009.             uint32_t i = 0;

  1010.             fluid_sfont_iteration_start(f_sfont);

  1011. 

  1012.             for (; (f_preset = fluid_sfont_iteration_next(f_sfont));)

  1013.             {

  1014.                 CARLA_SAFE_ASSERT_BREAK(i < count);

  1015. 

  1016.                 tmp = fluid_preset_get_banknum(f_preset);

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

  1018. 

  1019.                 tmp = fluid_preset_get_num(f_preset);

  1020.                 pData->midiprog.data[i].program = (tmp >= 0) ? static_cast<uint32_t>(tmp) : 0;

  1021. 

  1022.                 pData->midiprog.data[i].name = carla_strdup(fluid_preset_get_name(f_preset));

  1023. #else

  1024.             fluid_preset_t f_preset;

  1025. 

  1026.             // initial check to know how many midi-programs we have

  1027.             f_sfont->iteration_start(f_sfont);

  1028.             for (; f_sfont->iteration_next(f_sfont, &f_preset);)

  1029.                 ++count;

  1030. 

  1031.             // sound kits must always have at least 1 midi-program

  1032.             CARLA_SAFE_ASSERT_RETURN(count > 0,);

  1033. 

  1034.             pData->midiprog.createNew(count);

  1035. 

  1036.             // Update data

  1037.             int tmp;

  1038.             uint32_t i = 0;

  1039.             f_sfont->iteration_start(f_sfont);

  1040. 

  1041.             for (; f_sfont->iteration_next(f_sfont, &f_preset);)

  1042.             {

  1043.                 CARLA_SAFE_ASSERT_BREAK(i < count);

  1044. 

  1045.                 tmp = f_preset.get_banknum(&f_preset);

  1046.                 pData->midiprog.data[i].bank = (tmp >= 0) ? static_cast<uint32_t>(tmp) : 0;

  1047. 

  1048.                 tmp = f_preset.get_num(&f_preset);

  1049.                 pData->midiprog.data[i].program = (tmp >= 0) ? static_cast<uint32_t>(tmp) : 0;

  1050. 

  1051.                 pData->midiprog.data[i].name = carla_strdup(f_preset.get_name(&f_preset));

  1052. #endif

  1053. 

  1054.                 if (pData->midiprog.data[i].bank == 128 && ! hasDrums)

  1055.                 {

  1056.                     hasDrums  = true;

  1057.                     drumIndex = i;

  1058.                     drumProg  = pData->midiprog.data[i].program;

  1059.                 }

  1060. 

  1061.                 ++i;

  1062.             }

  1063.         }

  1064.         else

  1065.         {

  1066.             // failing means 0 midi-programs, it shouldn't happen!

  1067.             carla_safe_assert("fluid_sfont_t* const f_sfont = fluid_synth_get_sfont_by_id(fSynth, fSynthId)", __FILE__, __LINE__);

  1068.             return;

  1069.         }

  1070. 

  1071.         if (doInit)

  1072.         {

  1073.             fluid_synth_program_reset(fSynth);

  1074. 

  1075.             // select first program, or 128 for ch10

  1076.             for (int i=0; i < MAX_MIDI_CHANNELS && i != 9; ++i)

  1077.             {

  1078.                 fluid_synth_set_channel_type(fSynth, i, CHANNEL_TYPE_MELODIC);

  1079. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  1080.                 fluid_synth_program_select(fSynth, i, fSynthId,

  1081.                                            static_cast<int>(pData->midiprog.data[0].bank),

  1082.                                            static_cast<int>(pData->midiprog.data[0].program));

  1083. #else

  1084.                 fluid_synth_program_select(fSynth, i, fSynthId,

  1085.                                            pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1086. #endif

  1087.                 fCurMidiProgs[i] = 0;

  1088.             }

  1089. 

  1090.             if (hasDrums)

  1091.             {

  1092.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_DRUM);

  1093. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  1094.                 fluid_synth_program_select(fSynth, 9, fSynthId, 128, static_cast<int>(drumProg));

  1095. #else

  1096.                 fluid_synth_program_select(fSynth, 9, fSynthId, 128, drumProg);

  1097. #endif

  1098.                 fCurMidiProgs[9] = static_cast<int32_t>(drumIndex);

  1099.             }

  1100.             else

  1101.             {

  1102.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_MELODIC);

  1103. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  1104.                 fluid_synth_program_select(fSynth, 9, fSynthId,

  1105.                                            static_cast<int>(pData->midiprog.data[0].bank),

  1106.                                            static_cast<int>(pData->midiprog.data[0].program));

  1107. #else

  1108.                 fluid_synth_program_select(fSynth, 9, fSynthId,

  1109.                                            pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1110. #endif

  1111.                 fCurMidiProgs[9] = 0;

  1112.             }

  1113. 

  1114.             pData->midiprog.current = 0;

  1115.         }

  1116.         else

  1117.         {

  1118.             pData->engine->callback(true, true, ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0, 0.0f, nullptr);

  1119.         }

  1120.     }

  1121. 

  1122.     // -------------------------------------------------------------------

  1123.     // Plugin processing

  1124. 

  1125.     void process(const float* const* const, float** const audioOut,

  1126.                  const float* const*, float**, const uint32_t frames) override

  1127.     {

  1128.         // --------------------------------------------------------------------------------------------------------

  1129.         // Check if active

  1130. 

  1131.         if (! pData->active)

  1132.         {

  1133.             // disable any output sound

  1134.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1135.                 carla_zeroFloats(audioOut[i], frames);

  1136.             return;

  1137.         }

  1138. 

  1139.         // --------------------------------------------------------------------------------------------------------

  1140.         // Check if needs reset

  1141. 

  1142.         if (pData->needsReset)

  1143.         {

  1144.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1145.             {

  1146.                 for (int i=0; i < MAX_MIDI_CHANNELS; ++i)

  1147.                 {

  1148.                     fluid_synth_all_notes_off(fSynth, i);

  1149.                     fluid_synth_all_sounds_off(fSynth, i);

  1150.                 }

  1151.             }

  1152.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1153.             {

  1154.                 for (int i=0; i < MAX_MIDI_NOTE; ++i)

  1155.                     fluid_synth_noteoff(fSynth, pData->ctrlChannel, i);

  1156.             }

  1157. 

  1158.             pData->needsReset = false;

  1159.         }

  1160. 

  1161.         // --------------------------------------------------------------------------------------------------------

  1162.         // Event Input and Processing

  1163. 

  1164.         {

  1165.             // ----------------------------------------------------------------------------------------------------

  1166.             // MIDI Input (External)

  1167. 

  1168.             if (pData->extNotes.mutex.tryLock())

  1169.             {

  1170.                 for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin2(); it.valid(); it.next())

  1171.                 {

  1172.                     const ExternalMidiNote& note(it.getValue(kExternalMidiNoteFallback));

  1173.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1174. 

  1175.                     if (note.velo > 0)

  1176.                         fluid_synth_noteon(fSynth, note.channel, note.note, note.velo);

  1177.                     else

  1178.                         fluid_synth_noteoff(fSynth,note.channel, note.note);

  1179.                 }

  1180. 

  1181.                 pData->extNotes.data.clear();

  1182.                 pData->extNotes.mutex.unlock();

  1183. 

  1184.             } // End of MIDI Input (External)

  1185. 

  1186.             // ----------------------------------------------------------------------------------------------------

  1187.             // Event Input (System)

  1188. 

  1189. #ifndef BUILD_BRIDGE

  1190.             bool allNotesOffSent = false;

  1191. #endif

  1192.             uint32_t timeOffset = 0;

  1193. 

  1194.             uint32_t nextBankIds[MAX_MIDI_CHANNELS] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 };

  1195. 

  1196.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1197.                 nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1198. 

  1199.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1200.             {

  1201.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1202. 

  1203.                 uint32_t eventTime = event.time;

  1204.                 CARLA_SAFE_ASSERT_UINT2_CONTINUE(eventTime < frames, eventTime, frames);

  1205. 

  1206.                 if (eventTime < timeOffset)

  1207.                 {

  1208.                     carla_stderr2("Timing error, eventTime:%u < timeOffset:%u for '%s'",

  1209.                                   eventTime, timeOffset, pData->name);

  1210.                     eventTime = timeOffset;

  1211.                 }

  1212.                 else if (eventTime > timeOffset)

  1213.                 {

  1214.                     if (processSingle(audioOut, eventTime - timeOffset, timeOffset))

  1215.                     {

  1216.                         timeOffset = eventTime;

  1217. 

  1218.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1219.                             nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1220.                     }

  1221.                 }

  1222. 

  1223.                 // Control change

  1224.                 switch (event.type)

  1225.                 {

  1226.                 case kEngineEventTypeNull:

  1227.                     break;

  1228. 

  1229.                 case kEngineEventTypeControl:

  1230.                 {

  1231.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1232. 

  1233.                     switch (ctrlEvent.type)

  1234.                     {

  1235.                     case kEngineControlEventTypeNull:

  1236.                         break;

  1237. 

  1238.                     case kEngineControlEventTypeParameter:

  1239.                     {

  1240.                         float value;

  1241. 

  1242. #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

  1243.                         // Control backend stuff

  1244.                         if (event.channel == pData->ctrlChannel)

  1245.                         {

  1246.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1247.                             {

  1248.                                 value = ctrlEvent.value;

  1249.                                 setDryWetRT(value, true);

  1250.                             }

  1251. 

  1252.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1253.                             {

  1254.                                 value = ctrlEvent.value*127.0f/100.0f;

  1255.                                 setVolumeRT(value, true);

  1256.                             }

  1257. 

  1258.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1259.                             {

  1260.                                 float left, right;

  1261.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1262. 

  1263.                                 if (value < 0.0f)

  1264.                                 {

  1265.                                     left  = -1.0f;

  1266.                                     right = (value*2.0f)+1.0f;

  1267.                                 }

  1268.                                 else if (value > 0.0f)

  1269.                                 {

  1270.                                     left  = (value*2.0f)-1.0f;

  1271.                                     right = 1.0f;

  1272.                                 }

  1273.                                 else

  1274.                                 {

  1275.                                     left  = -1.0f;

  1276.                                     right = 1.0f;

  1277.                                 }

  1278. 

  1279.                                 setBalanceLeftRT(left, true);

  1280.                                 setBalanceRightRT(right, true);

  1281.                             }

  1282.                         }

  1283. #endif

  1284.                         // Control plugin parameters

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

  1286.                         {

  1287.                             if (pData->param.data[k].midiChannel != event.channel)

  1288.                                 continue;

  1289.                             if (pData->param.data[k].mappedControlIndex != ctrlEvent.param)

  1290.                                 continue;

  1291.                             if (pData->param.data[k].hints != PARAMETER_INPUT)

  1292.                                 continue;

  1293.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1294.                                 continue;

  1295. 

  1296.                             value = pData->param.getFinalUnnormalizedValue(k, ctrlEvent.value);

  1297.                             setParameterValueRT(k, value, true);

  1298.                         }

  1299. 

  1300.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param < MAX_MIDI_VALUE)

  1301.                         {

  1302.                             fluid_synth_cc(fSynth, event.channel, ctrlEvent.param, int(ctrlEvent.value*127.0f));

  1303.                         }

  1304.                         break;

  1305.                     }

  1306. 

  1307.                     case kEngineControlEventTypeMidiBank:

  1308.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1309.                             nextBankIds[event.channel] = ctrlEvent.param;

  1310.                         break;

  1311. 

  1312.                     case kEngineControlEventTypeMidiProgram:

  1313.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1314.                         {

  1315.                             const uint32_t bankId(nextBankIds[event.channel]);

  1316.                             const uint32_t progId(ctrlEvent.param);

  1317. 

  1318.                             // TODO int32_t midiprog.find(bank, prog)

  1319.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1320.                             {

  1321.                                 if (pData->midiprog.data[k].bank == bankId && pData->midiprog.data[k].program == progId)

  1322.                                 {

  1323. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  1324.                                     fluid_synth_program_select(fSynth, event.channel, fSynthId,

  1325.                                                                static_cast<int>(bankId), static_cast<int>(progId));

  1326. #else

  1327.                                     fluid_synth_program_select(fSynth, event.channel, fSynthId, bankId, progId);

  1328. #endif

  1329.                                     fCurMidiProgs[event.channel] = static_cast<int32_t>(k);

  1330. 

  1331.                                     if (event.channel == pData->ctrlChannel)

  1332.                                     {

  1333.                                         pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange,

  1334.                                                                true,

  1335.                                                                static_cast<int32_t>(k),

  1336.                                                                0, 0, 0.0f);

  1337.                                     }

  1338. 

  1339.                                     break;

  1340.                                 }

  1341.                             }

  1342.                         }

  1343.                         break;

  1344. 

  1345.                     case kEngineControlEventTypeAllSoundOff:

  1346.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1347.                             fluid_synth_all_sounds_off(fSynth, event.channel);

  1348.                         break;

  1349. 

  1350.                     case kEngineControlEventTypeAllNotesOff:

  1351.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1352.                         {

  1353. #ifndef BUILD_BRIDGE

  1354.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1355.                             {

  1356.                                 allNotesOffSent = true;

  1357.                                 postponeRtAllNotesOff();

  1358.                             }

  1359. #endif

  1360. 

  1361.                             fluid_synth_all_notes_off(fSynth, event.channel);

  1362.                         }

  1363.                         break;

  1364.                     }

  1365. 

  1366.                     break;

  1367.                 }

  1368. 

  1369.                 case kEngineEventTypeMidi: {

  1370.                     const EngineMidiEvent& midiEvent(event.midi);

  1371. 

  1372.                     if (midiEvent.size > EngineMidiEvent::kDataSize)

  1373.                         continue;

  1374. 

  1375.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1376. 

  1377.                     // Fix bad note-off

  1378.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1379.                         status = MIDI_STATUS_NOTE_OFF;

  1380. 

  1381.                     switch (status)

  1382.                     {

  1383.                     case MIDI_STATUS_NOTE_OFF: {

  1384.                         const uint8_t note = midiEvent.data[1];

  1385. 

  1386.                         fluid_synth_noteoff(fSynth, event.channel, note);

  1387. 

  1388.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, true, event.channel, note, 0, 0.0f);

  1389.                         break;

  1390.                     }

  1391. 

  1392.                     case MIDI_STATUS_NOTE_ON: {

  1393.                         const uint8_t note = midiEvent.data[1];

  1394.                         const uint8_t velo = midiEvent.data[2];

  1395. 

  1396.                         fluid_synth_noteon(fSynth, event.channel, note, velo);

  1397. 

  1398.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, true, event.channel, note, velo, 0.0f);

  1399.                         break;

  1400.                     }

  1401. 

  1402.                     case MIDI_STATUS_POLYPHONIC_AFTERTOUCH:

  1403.                         if (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH)

  1404.                         {

  1405.                             //const uint8_t note     = midiEvent.data[1];

  1406.                             //const uint8_t pressure = midiEvent.data[2];

  1407. 

  1408.                             // not in fluidsynth API

  1409.                         }

  1410.                         break;

  1411. 

  1412.                     case MIDI_STATUS_CONTROL_CHANGE:

  1413.                         if (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1414.                         {

  1415.                             const uint8_t control = midiEvent.data[1];

  1416.                             const uint8_t value   = midiEvent.data[2];

  1417. 

  1418.                             fluid_synth_cc(fSynth, event.channel, control, value);

  1419.                         }

  1420.                         break;

  1421. 

  1422.                     case MIDI_STATUS_CHANNEL_PRESSURE:

  1423.                         if (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE)

  1424.                         {

  1425.                             const uint8_t pressure = midiEvent.data[1];

  1426. 

  1427.                             fluid_synth_channel_pressure(fSynth, event.channel, pressure);;

  1428.                         }

  1429.                         break;

  1430. 

  1431.                     case MIDI_STATUS_PITCH_WHEEL_CONTROL:

  1432.                         if (pData->options & PLUGIN_OPTION_SEND_PITCHBEND)

  1433.                         {

  1434.                             const uint8_t lsb = midiEvent.data[1];

  1435.                             const uint8_t msb = midiEvent.data[2];

  1436.                             const int   value = ((msb << 7) | lsb);

  1437. 

  1438.                             fluid_synth_pitch_bend(fSynth, event.channel, value);

  1439.                         }

  1440.                         break;

  1441. 

  1442.                     default:

  1443.                         continue;

  1444.                         break;

  1445.                     } // switch (status)

  1446.                 } break;

  1447.                 } // switch (event.type)

  1448.             }

  1449. 

  1450.             pData->postRtEvents.trySplice();

  1451. 

  1452.             if (frames > timeOffset)

  1453.                 processSingle(audioOut, frames - timeOffset, timeOffset);

  1454. 

  1455.         } // End of Event Input and Processing

  1456. 

  1457. #ifndef BUILD_BRIDGE

  1458.         // --------------------------------------------------------------------------------------------------------

  1459.         // Control Output

  1460. 

  1461.         {

  1462.             uint32_t k = FluidSynthVoiceCount;

  1463.             fParamBuffers[k] = float(fluid_synth_get_active_voice_count(fSynth));

  1464.             pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1465. 

  1466.             if (pData->param.data[k].mappedControlIndex > 0)

  1467.             {

  1468.                 float value(pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]));

  1469.                 pData->event.portOut->writeControlEvent(0,

  1470.                                                         pData->param.data[k].midiChannel,

  1471.                                                         kEngineControlEventTypeParameter,

  1472.                                                         static_cast<uint16_t>(pData->param.data[k].mappedControlIndex),

  1473.                                                         value);

  1474.             }

  1475. 

  1476.         } // End of Control Output

  1477. #endif

  1478.     }

  1479. 

  1480.     bool processSingle(float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1481.     {

  1482.         CARLA_SAFE_ASSERT_RETURN(outBuffer != nullptr, false);

  1483.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1484. 

  1485.         // --------------------------------------------------------------------------------------------------------

  1486.         // Try lock, silence otherwise

  1487. 

  1488. #ifndef STOAT_TEST_BUILD

  1489.         if (pData->engine->isOffline())

  1490.         {

  1491.             pData->singleMutex.lock();

  1492.         }

  1493.         else

  1494. #endif

  1495.         if (! pData->singleMutex.tryLock())

  1496.         {

  1497.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1498.             {

  1499.                 for (uint32_t k=0; k < frames; ++k)

  1500.                     outBuffer[i][k+timeOffset] = 0.0f;

  1501.             }

  1502. 

  1503.             return false;

  1504.         }

  1505. 

  1506.         // --------------------------------------------------------------------------------------------------------

  1507.         // Fill plugin buffers and Run plugin

  1508. 

  1509.         if (kUse16Outs)

  1510.         {

  1511.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1512.                 carla_zeroFloats(fAudio16Buffers[i], frames);

  1513. 

  1514.             // FIXME use '32' or '16' instead of outs

  1515.             fluid_synth_process(fSynth, static_cast<int>(frames),

  1516.                                 0, nullptr,

  1517.                                 static_cast<int>(pData->audioOut.count), fAudio16Buffers);

  1518.         }

  1519.         else

  1520.         {

  1521.             fluid_synth_write_float(fSynth, static_cast<int>(frames),

  1522.                                     outBuffer[0] + timeOffset, 0, 1,

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

  1524.         }

  1525. 

  1526. #ifndef BUILD_BRIDGE

  1527.         // --------------------------------------------------------------------------------------------------------

  1528.         // Post-processing (volume and balance)

  1529. 

  1530.         {

  1531.             // note - balance not possible with kUse16Outs, so we can safely skip fAudioOutBuffers

  1532.             const bool doVolume  = (pData->hints & PLUGIN_CAN_VOLUME) != 0 && carla_isNotEqual(pData->postProc.volume, 1.0f);

  1533.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_isEqual(pData->postProc.balanceLeft, -1.0f) && carla_isEqual(pData->postProc.balanceRight, 1.0f));

  1534. 

  1535.             float oldBufLeft[doBalance ? frames : 1];

  1536. 

  1537.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1538.             {

  1539.                 // Balance

  1540.                 if (doBalance)

  1541.                 {

  1542.                     if (i % 2 == 0)

  1543.                         carla_copyFloats(oldBufLeft, outBuffer[i]+timeOffset, frames);

  1544. 

  1545.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

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

  1547. 

  1548.                     for (uint32_t k=0; k < frames; ++k)

  1549.                     {

  1550.                         if (i % 2 == 0)

  1551.                         {

  1552.                             // left

  1553.                             outBuffer[i][k+timeOffset]  = oldBufLeft[k]                * (1.0f - balRangeL);

  1554.                             outBuffer[i][k+timeOffset] += outBuffer[i+1][k+timeOffset] * (1.0f - balRangeR);

  1555.                         }

  1556.                         else

  1557.                         {

  1558.                             // right

  1559.                             outBuffer[i][k+timeOffset]  = outBuffer[i][k+timeOffset] * balRangeR;

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

  1561.                         }

  1562.                     }

  1563.                 }

  1564. 

  1565.                 // Volume

  1566.                 if (kUse16Outs)

  1567.                 {

  1568.                     for (uint32_t k=0; k < frames; ++k)

  1569.                         outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k] * pData->postProc.volume;

  1570.                 }

  1571.                 else if (doVolume)

  1572.                 {

  1573.                     for (uint32_t k=0; k < frames; ++k)

  1574.                         outBuffer[i][k+timeOffset] *= pData->postProc.volume;

  1575.                 }

  1576.             }

  1577. 

  1578.         } // End of Post-processing

  1579. #else

  1580.         if (kUse16Outs)

  1581.         {

  1582.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1583.             {

  1584.                 for (uint32_t k=0; k < frames; ++k)

  1585.                     outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k];

  1586.             }

  1587.         }

  1588. #endif

  1589. 

  1590.         // --------------------------------------------------------------------------------------------------------

  1591. 

  1592.         pData->singleMutex.unlock();

  1593.         return true;

  1594.     }

  1595. 

  1596.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1597.     {

  1598.         if (! kUse16Outs)

  1599.             return;

  1600. 

  1601.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1602.         {

  1603.             if (fAudio16Buffers[i] != nullptr)

  1604.                 delete[] fAudio16Buffers[i];

  1605.             fAudio16Buffers[i] = new float[newBufferSize];

  1606.         }

  1607.     }

  1608. 

  1609.     void sampleRateChanged(const double newSampleRate) override

  1610.     {

  1611.         CARLA_SAFE_ASSERT_RETURN(fSettings != nullptr,);

  1612.         fluid_settings_setnum(fSettings, "synth.sample-rate", newSampleRate);

  1613. 

  1614. #if FLUIDSYNTH_VERSION_MAJOR < 2

  1615.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

  1616.         fluid_synth_set_sample_rate(fSynth, static_cast<float>(newSampleRate));

  1617. #endif

  1618.     }

  1619. 

  1620.     // -------------------------------------------------------------------

  1621.     // Plugin buffers

  1622. 

  1623.     void clearBuffers() noexcept override

  1624.     {

  1625.         carla_debug("CarlaPluginFluidSynth::clearBuffers() - start");

  1626. 

  1627.         if (fAudio16Buffers != nullptr)

  1628.         {

  1629.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1630.             {

  1631.                 if (fAudio16Buffers[i] != nullptr)

  1632.                 {

  1633.                     delete[] fAudio16Buffers[i];

  1634.                     fAudio16Buffers[i] = nullptr;

  1635.                 }

  1636.             }

  1637. 

  1638.             delete[] fAudio16Buffers;

  1639.             fAudio16Buffers = nullptr;

  1640.         }

  1641. 

  1642.         CarlaPlugin::clearBuffers();

  1643. 

  1644.         carla_debug("CarlaPluginFluidSynth::clearBuffers() - end");

  1645.     }

  1646. 

  1647.     // -------------------------------------------------------------------

  1648. 

  1649.     const void* getExtraStuff() const noexcept override

  1650.     {

  1651.         static const char xtrue[]  = "true";

  1652.         static const char xfalse[] = "false";

  1653.         return kUse16Outs ? xtrue : xfalse;

  1654.     }

  1655. 

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

  1657. 

  1658.     bool init(const CarlaPluginPtr plugin,

  1659.               const char* const filename, const char* const name, const char* const label, const uint options)

  1660.     {

  1661.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  1662. 

  1663.         // ---------------------------------------------------------------

  1664.         // first checks

  1665. 

  1666.         if (pData->client != nullptr)

  1667.         {

  1668.             pData->engine->setLastError("Plugin client is already registered");

  1669.             return false;

  1670.         }

  1671. 

  1672.         if (fSynth == nullptr)

  1673.         {

  1674.             pData->engine->setLastError("null synth");

  1675.             return false;

  1676.         }

  1677. 

  1678.         if (filename == nullptr || filename[0] == '\0')

  1679.         {

  1680.             pData->engine->setLastError("null filename");

  1681.             return false;

  1682.         }

  1683. 

  1684.         if (label == nullptr || label[0] == '\0')

  1685.         {

  1686.             pData->engine->setLastError("null label");

  1687.             return false;

  1688.         }

  1689. 

  1690.         // ---------------------------------------------------------------

  1691.         // open soundfont

  1692. 

  1693.         const int synthId = fluid_synth_sfload(fSynth, filename, 0);

  1694. 

  1695.         if (synthId < 0)

  1696.         {

  1697.             pData->engine->setLastError("Failed to load SoundFont file");

  1698.             return false;

  1699.         }

  1700. 

  1701. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  1702.         fSynthId = synthId;

  1703. #else

  1704.         fSynthId = static_cast<uint>(synthId);

  1705. #endif

  1706. 

  1707. 

  1708.         // ---------------------------------------------------------------

  1709.         // get info

  1710. 

  1711.         CarlaString label2(label);

  1712. 

  1713.         if (kUse16Outs && ! label2.endsWith(" (16 outs)"))

  1714.             label2 += " (16 outs)";

  1715. 

  1716.         fLabel          = label2.dup();

  1717.         pData->filename = carla_strdup(filename);

  1718. 

  1719.         if (name != nullptr && name[0] != '\0')

  1720.             pData->name = pData->engine->getUniquePluginName(name);

  1721.         else

  1722.             pData->name = pData->engine->getUniquePluginName(label);

  1723. 

  1724.         // ---------------------------------------------------------------

  1725.         // register client

  1726. 

  1727.         pData->client = pData->engine->addClient(plugin);

  1728. 

  1729.         if (pData->client == nullptr || ! pData->client->isOk())

  1730.         {

  1731.             pData->engine->setLastError("Failed to register plugin client");

  1732.             return false;

  1733.         }

  1734. 

  1735.         // ---------------------------------------------------------------

  1736.         // set options

  1737. 

  1738.         pData->options = 0x0;

  1739. 

  1740.         if (isPluginOptionEnabled(options, PLUGIN_OPTION_SEND_CONTROL_CHANGES))

  1741.             pData->options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  1742.         if (isPluginOptionEnabled(options, PLUGIN_OPTION_SEND_CHANNEL_PRESSURE))

  1743.             pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1744.         if (isPluginOptionEnabled(options, PLUGIN_OPTION_SEND_PITCHBEND))

  1745.             pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  1746.         if (isPluginOptionEnabled(options, PLUGIN_OPTION_SEND_ALL_SOUND_OFF))

  1747.             pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1748.         if (isPluginOptionEnabled(options, PLUGIN_OPTION_MAP_PROGRAM_CHANGES))

  1749.             pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1750. 

  1751.         return true;

  1752.     }

  1753. 

  1754. private:

  1755.     void initializeFluidDefaultsIfNeeded()

  1756.     {

  1757.         if (sFluidDefaultsStored)

  1758.             return;

  1759.         sFluidDefaultsStored = true;

  1760.         // reverb defaults

  1761.         sFluidDefaults[FluidSynthReverbOnOff] = 1.0f;

  1762. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  1763.         double reverbVal;

  1764. 

  1765.         reverbVal = 0.2;

  1766.         fluid_settings_getnum_default(fSettings, "synth.reverb.room-size", &reverbVal);

  1767.         sFluidDefaults[FluidSynthReverbRoomSize] = static_cast<float>(reverbVal);

  1768. 

  1769.         reverbVal = 0.0;

  1770.         fluid_settings_getnum_default(fSettings, "synth.reverb.damp", &reverbVal);

  1771.         sFluidDefaults[FluidSynthReverbDamp] = static_cast<float>(reverbVal);

  1772. 

  1773.         reverbVal = 0.9;

  1774.         fluid_settings_getnum_default(fSettings, "synth.reverb.level", &reverbVal);

  1775.         sFluidDefaults[FluidSynthReverbLevel] = static_cast<float>(reverbVal);

  1776. 

  1777.         reverbVal = 0.5;

  1778.         fluid_settings_getnum_default(fSettings, "synth.reverb.width", &reverbVal);

  1779.         sFluidDefaults[FluidSynthReverbWidth] = static_cast<float>(reverbVal);

  1780. #else

  1781.         sFluidDefaults[FluidSynthReverbRoomSize] = FLUID_REVERB_DEFAULT_ROOMSIZE;

  1782.         sFluidDefaults[FluidSynthReverbDamp] = FLUID_REVERB_DEFAULT_DAMP;

  1783.         sFluidDefaults[FluidSynthReverbLevel] = FLUID_REVERB_DEFAULT_LEVEL;

  1784.         sFluidDefaults[FluidSynthReverbWidth] = FLUID_REVERB_DEFAULT_WIDTH;

  1785. #endif

  1786. 

  1787.         // chorus defaults

  1788.         sFluidDefaults[FluidSynthChorusOnOff] = 1.0f;

  1789. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  1790.         double chorusVal;

  1791. 

  1792.         chorusVal = 3.0;

  1793.         fluid_settings_getnum_default(fSettings, "synth.chorus.nr", &chorusVal);

  1794.         sFluidDefaults[FluidSynthChorusNr] = static_cast<float>(chorusVal);

  1795. 

  1796.         chorusVal = 2.0;

  1797.         fluid_settings_getnum_default(fSettings, "synth.chorus.level", &chorusVal);

  1798.         sFluidDefaults[FluidSynthChorusLevel] = static_cast<float>(chorusVal);

  1799. 

  1800.         chorusVal = 0.3;

  1801.         fluid_settings_getnum_default(fSettings, "synth.chorus.speed", &chorusVal);

  1802.         sFluidDefaults[FluidSynthChorusSpeedHz] = static_cast<float>(chorusVal);

  1803. 

  1804.         chorusVal = 8.0;

  1805.         fluid_settings_getnum_default(fSettings, "synth.chorus.depth", &chorusVal);

  1806.         sFluidDefaults[FluidSynthChorusDepthMs] = static_cast<float>(chorusVal);

  1807. 

  1808.         // There is no settings for chorus default type

  1809.         sFluidDefaults[FluidSynthChorusType] = static_cast<float>(fluid_synth_get_chorus_type(fSynth));

  1810. #else

  1811.         sFluidDefaults[FluidSynthChorusNr] = FLUID_CHORUS_DEFAULT_N;

  1812.         sFluidDefaults[FluidSynthChorusLevel] = FLUID_CHORUS_DEFAULT_LEVEL;

  1813.         sFluidDefaults[FluidSynthChorusSpeedHz] = FLUID_CHORUS_DEFAULT_SPEED;

  1814.         sFluidDefaults[FluidSynthChorusDepthMs] = FLUID_CHORUS_DEFAULT_DEPTH;

  1815.         sFluidDefaults[FluidSynthChorusType] = FLUID_CHORUS_DEFAULT_TYPE;

  1816. #endif

  1817. 

  1818.         // misc. defaults

  1819.         sFluidDefaults[FluidSynthInterpolation] = FLUID_INTERP_DEFAULT;

  1820.     }

  1821. 

  1822.     enum FluidSynthParameters {

  1823.         FluidSynthReverbOnOff    = 0,

  1824.         FluidSynthReverbRoomSize = 1,

  1825.         FluidSynthReverbDamp     = 2,

  1826.         FluidSynthReverbLevel    = 3,

  1827.         FluidSynthReverbWidth    = 4,

  1828.         FluidSynthChorusOnOff    = 5,

  1829.         FluidSynthChorusNr       = 6,

  1830.         FluidSynthChorusLevel    = 7,

  1831.         FluidSynthChorusSpeedHz  = 8,

  1832.         FluidSynthChorusDepthMs  = 9,

  1833.         FluidSynthChorusType     = 10,

  1834.         FluidSynthPolyphony      = 11,

  1835.         FluidSynthInterpolation  = 12,

  1836.         FluidSynthVoiceCount     = 13,

  1837.         FluidSynthParametersMax  = 14

  1838.     };

  1839. 

  1840.     const bool kUse16Outs;

  1841. 

  1842.     fluid_settings_t* fSettings;

  1843.     fluid_synth_t*    fSynth;

  1844. #if FLUIDSYNTH_VERSION_MAJOR >= 2

  1845.     int fSynthId;

  1846. #else

  1847.     uint fSynthId;

  1848. #endif

  1849. 

  1850.     float** fAudio16Buffers;

  1851.     float   fParamBuffers[FluidSynthParametersMax];

  1852. 

  1853.     static bool sFluidDefaultsStored;

  1854.     static float sFluidDefaults[FluidSynthParametersMax];

  1855. 

  1856.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  1857. 

  1858.     const char* fLabel;

  1859. 

  1860.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginFluidSynth)

  1861. };

  1862. 

  1863. bool CarlaPluginFluidSynth::sFluidDefaultsStored = false;

  1864. float CarlaPluginFluidSynth::sFluidDefaults[FluidSynthParametersMax] = {

  1865.     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,

  1866. };

  1867. 

  1868. CARLA_BACKEND_END_NAMESPACE

  1869. 

  1870. #endif // HAVE_FLUIDSYNTH

  1871. 

  1872. CARLA_BACKEND_START_NAMESPACE

  1873. 

  1874. // -------------------------------------------------------------------------------------------------------------------

  1875. 

  1876. CarlaPluginPtr CarlaPlugin::newFluidSynth(const Initializer& init, PluginType ptype, bool use16Outs)

  1877. {

  1878.     carla_debug("CarlaPlugin::newFluidSynth({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "}, %s)",

  1879.                 init.engine, init.filename, init.name, init.label, init.uniqueId, bool2str(use16Outs));

  1880. 

  1881. #ifdef HAVE_FLUIDSYNTH

  1882.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK)

  1883.         use16Outs = false;

  1884. 

  1885.     if (ptype == PLUGIN_SF2 && ! fluid_is_soundfont(init.filename))

  1886.     {

  1887.         init.engine->setLastError("Requested file is not a valid SoundFont");

  1888.         return nullptr;

  1889.     }

  1890. #ifndef HAVE_FLUIDSYNTH_INSTPATCH

  1891.     if (ptype == PLUGIN_DLS)

  1892.     {

  1893.         init.engine->setLastError("DLS file support not available");

  1894.         return nullptr;

  1895.     }

  1896.     if (ptype == PLUGIN_GIG)

  1897.     {

  1898.         init.engine->setLastError("GIG file support not available");

  1899.         return nullptr;

  1900.     }

  1901. #endif

  1902. 

  1903.     std::shared_ptr<CarlaPluginFluidSynth> plugin(new CarlaPluginFluidSynth(init.engine, init.id,  use16Outs));

  1904. 

  1905.     if (! plugin->init(plugin, init.filename, init.name, init.label, init.options))

  1906.         return nullptr;

  1907. 

  1908.     return plugin;

  1909. #else

  1910.     init.engine->setLastError("fluidsynth support not available");

  1911.     return nullptr;

  1912. 

  1913.     // unused

  1914.     (void)ptype;

  1915.     (void)use16Outs;

  1916. #endif

  1917. }

  1918. 

  1919. // -------------------------------------------------------------------------------------------------------------------

  1920. 

  1921. CARLA_BACKEND_END_NAMESPACE