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Carla/source/backend/plugin/CarlaPluginFluidSynth.cpp

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  1. /*

  2.  * Carla FluidSynth Plugin

  3.  * Copyright (C) 2011-2018 Filipe Coelho <falktx@falktx.com>

  4.  *

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

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

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

  8.  * the License, or any later version.

  9.  *

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

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

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

  13.  * GNU General Public License for more details.

  14.  *

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

  16.  */

  17. 

  18. #include "CarlaPluginInternal.hpp"

  19. #include "CarlaEngine.hpp"

  20. 

  21. #ifdef HAVE_FLUIDSYNTH

  22. 

  23. #include "CarlaMathUtils.hpp"

  24. 

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

  26. 

  27. #include <fluidsynth.h>

  28. 

  29. #define FLUID_DEFAULT_POLYPHONY 64

  30. 

  31. using water::String;

  32. using water::StringArray;

  33. 

  34. CARLA_BACKEND_START_NAMESPACE

  35. 

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

  37. // Fallback data

  38. 

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

  40. 

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

  42. 

  43. class CarlaPluginFluidSynth : public CarlaPlugin

  44. {

  45. public:

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

  47.         : CarlaPlugin(engine, id),

  48.           kUse16Outs(use16Outs),

  49.           fSettings(nullptr),

  50.           fSynth(nullptr),

  51.           fSynthId(0),

  52.           fAudio16Buffers(nullptr),

  53.           fLabel(nullptr)

  54.     {

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

  56. 

  57.         carla_zeroFloats(fParamBuffers, FluidSynthParametersMax);

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

  59. 

  60.         // create settings

  61.         fSettings = new_fluid_settings();

  62.         CARLA_SAFE_ASSERT_RETURN(fSettings != nullptr,);

  63. 

  64.         // define settings

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

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

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

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

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

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

  71. 

  72.         // create synth

  73.         fSynth = new_fluid_synth(fSettings);

  74.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

  75. 

  76.         initializeFluidDefaultsIfNeeded();

  77. 

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

  79. 

  80.         // set default values

  81.         fluid_synth_set_reverb_on(fSynth, 1);

  82.         fluid_synth_set_reverb(fSynth, sFluidDefaults[FluidSynthReverbRoomSize], sFluidDefaults[FluidSynthReverbDamp], sFluidDefaults[FluidSynthReverbWidth], sFluidDefaults[FluidSynthReverbLevel]);

  83. 

  84.         fluid_synth_set_chorus_on(fSynth, 1);

  85.         fluid_synth_set_chorus(fSynth, sFluidDefaults[FluidSynthChorusNr], sFluidDefaults[FluidSynthChorusLevel], sFluidDefaults[FluidSynthChorusSpeedHz], sFluidDefaults[FluidSynthChorusDepthMs], sFluidDefaults[FluidSynthChorusType]);

  86. 

  87.         fluid_synth_set_polyphony(fSynth, FLUID_DEFAULT_POLYPHONY);

  88.         fluid_synth_set_gain(fSynth, 1.0f);

  89. 

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

  91.             fluid_synth_set_interp_method(fSynth, i, sFluidDefaults[FluidSynthInterpolation]);

  92.     }

  93. 

  94.     ~CarlaPluginFluidSynth() override

  95.     {

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

  97. 

  98.         pData->singleMutex.lock();

  99.         pData->masterMutex.lock();

  100. 

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

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

  103. 

  104.         if (pData->active)

  105.         {

  106.             deactivate();

  107.             pData->active = false;

  108.         }

  109. 

  110.         if (fSynth != nullptr)

  111.         {

  112.             delete_fluid_synth(fSynth);

  113.             fSynth = nullptr;

  114.         }

  115. 

  116.         if (fSettings != nullptr)

  117.         {

  118.             delete_fluid_settings(fSettings);

  119.             fSettings = nullptr;

  120.         }

  121. 

  122.         if (fLabel != nullptr)

  123.         {

  124.             delete[] fLabel;

  125.             fLabel = nullptr;

  126.         }

  127. 

  128.         clearBuffers();

  129.     }

  130. 

  131.     // -------------------------------------------------------------------

  132.     // Information (base)

  133. 

  134.     PluginType getType() const noexcept override

  135.     {

  136.         return PLUGIN_SF2;

  137.     }

  138. 

  139.     PluginCategory getCategory() const noexcept override

  140.     {

  141.         return PLUGIN_CATEGORY_SYNTH;

  142.     }

  143. 

  144.     // -------------------------------------------------------------------

  145.     // Information (count)

  146. 

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

  148.     {

  149.         switch (parameterId)

  150.         {

  151.         case FluidSynthChorusType:

  152.             return 2;

  153.         case FluidSynthInterpolation:

  154.             return 4;

  155.         default:

  156.             return 0;

  157.         }

  158.     }

  159. 

  160.     // -------------------------------------------------------------------

  161.     // Information (current data)

  162. 

  163.     // nothing

  164. 

  165.     // -------------------------------------------------------------------

  166.     // Information (per-plugin data)

  167. 

  168.     uint getOptionsAvailable() const noexcept override

  169.     {

  170.         uint options = 0x0;

  171. 

  172.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  173.         options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  174.         options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  175.         options |= PLUGIN_OPTION_SEND_PITCHBEND;

  176.         options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  177. 

  178.         return options;

  179.     }

  180. 

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

  182.     {

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

  184. 

  185.         return fParamBuffers[parameterId];

  186.     }

  187. 

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

  189.     {

  190.         switch (parameterId)

  191.         {

  192.         case FluidSynthChorusType:

  193.             switch (scalePointId)

  194.             {

  195.             case 0:

  196.                 return FLUID_CHORUS_MOD_SINE;

  197.             case 1:

  198.                 return FLUID_CHORUS_MOD_TRIANGLE;

  199.             default:

  200.                 return sFluidDefaults[FluidSynthChorusType];

  201.             }

  202.         case FluidSynthInterpolation:

  203.             switch (scalePointId)

  204.             {

  205.             case 0:

  206.                 return FLUID_INTERP_NONE;

  207.             case 1:

  208.                 return FLUID_INTERP_LINEAR;

  209.             case 2:

  210.                 return FLUID_INTERP_4THORDER;

  211.             case 3:

  212.                 return FLUID_INTERP_7THORDER;

  213.             default:

  214.                 return sFluidDefaults[FluidSynthInterpolation];

  215.             }

  216.         default:

  217.             return 0.0f;

  218.         }

  219.     }

  220. 

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

  222.     {

  223.         if (fLabel != nullptr)

  224.         {

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

  226.             return;

  227.         }

  228. 

  229.         CarlaPlugin::getLabel(strBuf);

  230.     }

  231. 

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

  233.     {

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

  235.     }

  236. 

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

  238.     {

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

  240.     }

  241. 

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

  243.     {

  244.         getLabel(strBuf);

  245.     }

  246. 

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

  248.     {

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

  250. 

  251.         switch (parameterId)

  252.         {

  253.         case FluidSynthReverbOnOff:

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

  255.             return;

  256.         case FluidSynthReverbRoomSize:

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

  258.             return;

  259.         case FluidSynthReverbDamp:

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

  261.             return;

  262.         case FluidSynthReverbLevel:

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

  264.             return;

  265.         case FluidSynthReverbWidth:

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

  267.             return;

  268.         case FluidSynthChorusOnOff:

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

  270.             return;

  271.         case FluidSynthChorusNr:

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

  273.             return;

  274.         case FluidSynthChorusLevel:

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

  276.             return;

  277.         case FluidSynthChorusSpeedHz:

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

  279.             return;

  280.         case FluidSynthChorusDepthMs:

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

  282.             return;

  283.         case FluidSynthChorusType:

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

  285.             return;

  286.         case FluidSynthPolyphony:

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

  288.             return;

  289.         case FluidSynthInterpolation:

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

  291.             return;

  292.         case FluidSynthVoiceCount:

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

  294.             return;

  295.         }

  296. 

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

  298.     }

  299. 

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

  301.     {

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

  303. 

  304.         switch (parameterId)

  305.         {

  306.         case FluidSynthChorusSpeedHz:

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

  308.             return;

  309.         case FluidSynthChorusDepthMs:

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

  311.             return;

  312.         }

  313. 

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

  315.     }

  316. 

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

  318.     {

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

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

  321. 

  322.         switch (parameterId)

  323.         {

  324.         case FluidSynthChorusType:

  325.             switch (scalePointId)

  326.             {

  327.             case 0:

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

  329.                 return;

  330.             case 1:

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

  332.                 return;

  333.             }

  334.             break;

  335.         case FluidSynthInterpolation:

  336.             switch (scalePointId)

  337.             {

  338.             case 0:

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

  340.                 return;

  341.             case 1:

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

  343.                 return;

  344.             case 2:

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

  346.                 return;

  347.             case 3:

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

  349.                 return;

  350.             }

  351.             break;

  352.         }

  353. 

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

  355.     }

  356. 

  357.     // -------------------------------------------------------------------

  358.     // Set data (state)

  359. 

  360.     void prepareForSave() override

  361.     {

  362.         char strBuf[STR_MAX+1];

  363.         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],

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

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

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

  367. 

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

  369.     }

  370. 

  371.     // -------------------------------------------------------------------

  372.     // Set data (internal stuff)

  373. 

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

  375.     {

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

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

  378. 

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

  380.     }

  381. 

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

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

  384. 

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

  386.     {

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

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

  389. 

  390.         float fixedValue;

  391. 

  392.         {

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

  394.             fixedValue = setParameterValueInFluidSynth(parameterId, value);

  395. 

  396.         }

  397. 

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

  399.     }

  400. 

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

  402.     {

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

  404. 

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

  406.     }

  407. 

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

  409.     {

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

  411. 

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

  413.         fParamBuffers[parameterId] = fixedValue;

  414. 

  415.         switch (parameterId)

  416.         {

  417.         case FluidSynthReverbOnOff:

  418.             try {

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

  420.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_reverb_on")

  421.             break;

  422. 

  423.         case FluidSynthReverbRoomSize:

  424.         case FluidSynthReverbDamp:

  425.         case FluidSynthReverbLevel:

  426.         case FluidSynthReverbWidth:

  427.             try {

  428.                 fluid_synth_set_reverb(fSynth,

  429.                                        fParamBuffers[FluidSynthReverbRoomSize],

  430.                                        fParamBuffers[FluidSynthReverbDamp],

  431.                                        fParamBuffers[FluidSynthReverbWidth],

  432.                                        fParamBuffers[FluidSynthReverbLevel]);

  433.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_reverb")

  434.             break;

  435. 

  436.         case FluidSynthChorusOnOff:

  437.             try {

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

  439.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_chorus_on")

  440.             break;

  441. 

  442.         case FluidSynthChorusNr:

  443.         case FluidSynthChorusLevel:

  444.         case FluidSynthChorusSpeedHz:

  445.         case FluidSynthChorusDepthMs:

  446.         case FluidSynthChorusType:

  447.             try {

  448.                 fluid_synth_set_chorus(fSynth,

  449.                                        (int)fParamBuffers[FluidSynthChorusNr],

  450.                                        fParamBuffers[FluidSynthChorusLevel],

  451.                                        fParamBuffers[FluidSynthChorusSpeedHz],

  452.                                        fParamBuffers[FluidSynthChorusDepthMs],

  453.                                        (int)fParamBuffers[FluidSynthChorusType]);

  454.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_chorus")

  455.             break;

  456. 

  457.         case FluidSynthPolyphony:

  458.             try {

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

  460.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_polyphony")

  461.             break;

  462. 

  463.         case FluidSynthInterpolation:

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

  465.             {

  466.                 try {

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

  468.                 } CARLA_SAFE_EXCEPTION_BREAK("fluid_synth_set_interp_method")

  469.             }

  470.             break;

  471. 

  472.         default:

  473.             break;

  474.         }

  475. 

  476.         return fixedValue;

  477.     }

  478. 

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

  480.     {

  481.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

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

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

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

  486. 

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

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

  489. 

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

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

  492. 

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

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

  495. 

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

  497. 

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

  499.         {

  500.             uint8_t channel = 0;

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

  502.             {

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

  504. 

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

  506.                 {

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

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

  509. 

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

  511.                     fCurMidiProgs[channel] = index;

  512. 

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

  514.                     {

  515.                         pData->midiprog.current = index;

  516.                         pData->engine->callback(ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED, pData->id, index, 0, 0.0f, nullptr);

  517.                     }

  518.                 }

  519. 

  520.                 ++channel;

  521.             }

  522.             CARLA_SAFE_ASSERT(channel == MAX_MIDI_CHANNELS);

  523.         }

  524. 

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

  526.     }

  527. 

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

  529.     {

  530.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

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

  533. 

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

  535.         {

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

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

  538. 

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

  540. 

  541.             try {

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

  543.             } CARLA_SAFE_EXCEPTION("fluid_synth_program_select")

  544. 

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

  546.         }

  547. 

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

  549.     }

  550. 

  551.     void setMidiProgramRT(const uint32_t uindex) noexcept override

  552.     {

  553.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

  555. 

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

  557.         {

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

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

  560. 

  561.             try {

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

  563.             } CARLA_SAFE_EXCEPTION("fluid_synth_program_select")

  564. 

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

  566.         }

  567. 

  568.         CarlaPlugin::setMidiProgramRT(uindex);

  569.     }

  570. 

  571.     // -------------------------------------------------------------------

  572.     // Set ui stuff

  573. 

  574.     // nothing

  575. 

  576.     // -------------------------------------------------------------------

  577.     // Plugin state

  578. 

  579.     void reload() override

  580.     {

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

  582.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

  584. 

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

  586. 

  587.         // Safely disable plugin for reload

  588.         const ScopedDisabler sd(this);

  589. 

  590.         if (pData->active)

  591.             deactivate();

  592. 

  593.         clearBuffers();

  594. 

  595.         uint32_t aOuts, params;

  596.         aOuts  = kUse16Outs ? 32 : 2;

  597.         params = FluidSynthParametersMax;

  598. 

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

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

  601. 

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

  603.         CarlaString portName;

  604. 

  605.         // ---------------------------------------

  606.         // Audio Outputs

  607. 

  608.         if (kUse16Outs)

  609.         {

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

  611.             {

  612.                 portName.clear();

  613. 

  614.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  615.                 {

  616.                     portName  = pData->name;

  617.                     portName += ":";

  618.                 }

  619. 

  620.                 portName += "out-";

  621. 

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

  623.                     portName += "0";

  624. 

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

  626. 

  627.                 if (i % 2 == 0)

  628.                     portName += "L";

  629.                 else

  630.                     portName += "R";

  631. 

  632.                 portName.truncate(portNameSize);

  633. 

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

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

  636.             }

  637. 

  638.             fAudio16Buffers = new float*[aOuts];

  639. 

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

  641.                 fAudio16Buffers[i] = nullptr;

  642.         }

  643.         else

  644.         {

  645.             // out-left

  646.             portName.clear();

  647. 

  648.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  649.             {

  650.                 portName  = pData->name;

  651.                 portName += ":";

  652.             }

  653. 

  654.             portName += "out-left";

  655.             portName.truncate(portNameSize);

  656. 

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

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

  659. 

  660.             // out-right

  661.             portName.clear();

  662. 

  663.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  664.             {

  665.                 portName  = pData->name;

  666.                 portName += ":";

  667.             }

  668. 

  669.             portName += "out-right";

  670.             portName.truncate(portNameSize);

  671. 

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

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

  674.         }

  675. 

  676.         // ---------------------------------------

  677.         // Event Input

  678. 

  679.         {

  680.             portName.clear();

  681. 

  682.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  683.             {

  684.                 portName  = pData->name;

  685.                 portName += ":";

  686.             }

  687. 

  688.             portName += "events-in";

  689.             portName.truncate(portNameSize);

  690. 

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

  692.         }

  693. 

  694.         // ---------------------------------------

  695.         // Event Output

  696. 

  697.         {

  698.             portName.clear();

  699. 

  700.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  701.             {

  702.                 portName  = pData->name;

  703.                 portName += ":";

  704.             }

  705. 

  706.             portName += "events-out";

  707.             portName.truncate(portNameSize);

  708. 

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

  710.         }

  711. 

  712.         // ---------------------------------------

  713.         // Parameters

  714. 

  715.         {

  716.             int j;

  717. 

  718.             // ----------------------

  719.             j = FluidSynthReverbOnOff;

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

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

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

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

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

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

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

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

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

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

  730. 

  731.             // ----------------------

  732.             j = FluidSynthReverbRoomSize;

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

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

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

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

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

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

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

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

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

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

  743. 

  744.             // ----------------------

  745.             j = FluidSynthReverbDamp;

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

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

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

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

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

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

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

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

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

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

  756. 

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

  758.             j = FluidSynthReverbLevel;

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

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

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

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

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

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

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

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

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

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

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

  770. 

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

  772.             j = FluidSynthReverbWidth;

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

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

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

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

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

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

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

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

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

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

  783. 

  784.             // ----------------------

  785.             j = FluidSynthChorusOnOff;

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

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

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

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

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

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

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

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

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

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

  796. 

  797.             // ----------------------

  798.             j = FluidSynthChorusNr;

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

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

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

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

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

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

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

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

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

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

  809. 

  810.             // ----------------------

  811.             j = FluidSynthChorusLevel;

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

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

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

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

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

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

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

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

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

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

  822. 

  823.             // ----------------------

  824.             j = FluidSynthChorusSpeedHz;

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

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

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

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

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

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

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

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

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

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

  835. 

  836.             // ----------------------

  837.             j = FluidSynthChorusDepthMs;

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

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

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

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

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

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

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

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

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

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

  848. 

  849.             // ----------------------

  850.             j = FluidSynthChorusType;

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

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

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

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

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

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

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

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

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

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

  861. 

  862.             // ----------------------

  863.             j = FluidSynthPolyphony;

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

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

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

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

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

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

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

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

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

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

  874. 

  875.             // ----------------------

  876.             j = FluidSynthInterpolation;

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

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

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

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

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

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

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

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

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

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

  887. 

  888.             // ----------------------

  889.             j = FluidSynthVoiceCount;

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

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

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

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

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

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

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

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

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

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

  900. 

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

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

  903.         }

  904. 

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

  906. 

  907.         // plugin hints

  908.         pData->hints  = 0x0;

  909.         pData->hints |= PLUGIN_IS_SYNTH;

  910.         pData->hints |= PLUGIN_CAN_VOLUME;

  911.         pData->hints |= PLUGIN_USES_MULTI_PROGS;

  912. 

  913.         if (! kUse16Outs)

  914.             pData->hints |= PLUGIN_CAN_BALANCE;

  915. 

  916.         // extra plugin hints

  917.         pData->extraHints  = 0x0;

  918.         pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  919. 

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

  921.         reloadPrograms(true);

  922. 

  923.         if (pData->active)

  924.             activate();

  925. 

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

  927.     }

  928. 

  929.     void reloadPrograms(const bool doInit) override

  930.     {

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

  932. 

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

  934.         bool hasDrums = false;

  935.         uint32_t drumIndex, drumProg;

  936.         drumIndex = drumProg = 0;

  937. 

  938.         // Delete old programs

  939.         pData->midiprog.clear();

  940. 

  941.         // Query new programs

  942.         uint32_t count = 0;

  943. 

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

  945.         {

  946. #if FLUIDSYNTH_VERSION_MAJOR < 2

  947.             fluid_preset_t f_preset;

  948. 

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

  950.             f_sfont->iteration_start(f_sfont);

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

  952.                 ++count;

  953. 

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

  955.             CARLA_SAFE_ASSERT_RETURN(count > 0,);

  956. 

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

  958. 

  959.             // Update data

  960.             int tmp;

  961.             uint32_t i = 0;

  962.             f_sfont->iteration_start(f_sfont);

  963. 

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

  965.             {

  966.                 CARLA_SAFE_ASSERT_BREAK(i < count);

  967. 

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

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

  970. 

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

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

  973. 

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

  975. #else

  976.             fluid_preset_t* f_preset;

  977. 

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

  979.             fluid_sfont_iteration_start(f_sfont);

  980.             for (; fluid_sfont_iteration_next(f_sfont);)

  981.                 ++count;

  982. 

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

  984.             CARLA_SAFE_ASSERT_RETURN(count > 0,);

  985. 

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

  987. 

  988.             // Update data

  989.             int tmp;

  990.             uint32_t i = 0;

  991.             fluid_sfont_iteration_start(f_sfont);

  992. 

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

  994.             {

  995.                 CARLA_SAFE_ASSERT_BREAK(i < count);

  996. 

  997.                 tmp = fluid_preset_get_banknum(f_preset);

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

  999. 

  1000.                 tmp = fluid_preset_get_num(f_preset);

  1001.                 pData->midiprog.data[i].program = (tmp >= 0) ? static_cast<uint32_t>(tmp) : 0;

  1002. 

  1003.                 pData->midiprog.data[i].name = carla_strdup(fluid_preset_get_name(f_preset));

  1004. #endif

  1005. 

  1006.                 if (pData->midiprog.data[i].bank == 128 && ! hasDrums)

  1007.                 {

  1008.                     hasDrums  = true;

  1009.                     drumIndex = i;

  1010.                     drumProg  = pData->midiprog.data[i].program;

  1011.                 }

  1012. 

  1013.                 ++i;

  1014.             }

  1015.         }

  1016.         else

  1017.         {

  1018.             // failing means 0 midi-programs, it shouldn't happen!

  1019.             carla_safe_assert("fluid_sfont_t* const f_sfont = fluid_synth_get_sfont_by_id(fSynth, fSynthId)", __FILE__, __LINE__);

  1020.             return;

  1021.         }

  1022. 

  1023. #if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)

  1024.         // Update OSC Names

  1025.         if (pData->engine->isOscControlRegistered() && pData->id < pData->engine->getCurrentPluginCount())

  1026.         {

  1027.             pData->engine->oscSend_control_set_midi_program_count(pData->id, count);

  1028. 

  1029.             for (uint32_t i=0; i < count; ++i)

  1030.                 pData->engine->oscSend_control_set_midi_program_data(pData->id, i, pData->midiprog.data[i].bank, pData->midiprog.data[i].program, pData->midiprog.data[i].name);

  1031.         }

  1032. #endif

  1033. 

  1034.         if (doInit)

  1035.         {

  1036.             fluid_synth_program_reset(fSynth);

  1037. 

  1038.             // select first program, or 128 for ch10

  1039.             for (int i=0; i < MAX_MIDI_CHANNELS && i != 9; ++i)

  1040.             {

  1041.                 fluid_synth_set_channel_type(fSynth, i, CHANNEL_TYPE_MELODIC);

  1042.                 fluid_synth_program_select(fSynth, i, fSynthId, pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1043. 

  1044.                 fCurMidiProgs[i] = 0;

  1045.             }

  1046. 

  1047.             if (hasDrums)

  1048.             {

  1049.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_DRUM);

  1050.                 fluid_synth_program_select(fSynth, 9, fSynthId, 128, drumProg);

  1051. 

  1052.                 fCurMidiProgs[9] = static_cast<int32_t>(drumIndex);

  1053.             }

  1054.             else

  1055.             {

  1056.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_MELODIC);

  1057.                 fluid_synth_program_select(fSynth, 9, fSynthId, pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1058. 

  1059.                 fCurMidiProgs[9] = 0;

  1060.             }

  1061. 

  1062.             pData->midiprog.current = 0;

  1063.         }

  1064.         else

  1065.         {

  1066.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1067.         }

  1068.     }

  1069. 

  1070.     // -------------------------------------------------------------------

  1071.     // Plugin processing

  1072. 

  1073.     void process(const float** const, float** const audioOut, const float** const, float** const, const uint32_t frames) override

  1074.     {

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

  1076.         // Check if active

  1077. 

  1078.         if (! pData->active)

  1079.         {

  1080.             // disable any output sound

  1081.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1082.                 carla_zeroFloats(audioOut[i], frames);

  1083.             return;

  1084.         }

  1085. 

  1086.         // --------------------------------------------------------------------------------------------------------

  1087.         // Check if needs reset

  1088. 

  1089.         if (pData->needsReset)

  1090.         {

  1091.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1092.             {

  1093.                 for (int i=0; i < MAX_MIDI_CHANNELS; ++i)

  1094.                 {

  1095.                     fluid_synth_all_notes_off(fSynth, i);

  1096.                     fluid_synth_all_sounds_off(fSynth, i);

  1097.                 }

  1098.             }

  1099.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1100.             {

  1101.                 for (int i=0; i < MAX_MIDI_NOTE; ++i)

  1102.                     fluid_synth_noteoff(fSynth, pData->ctrlChannel, i);

  1103.             }

  1104. 

  1105.             pData->needsReset = false;

  1106.         }

  1107. 

  1108.         // --------------------------------------------------------------------------------------------------------

  1109.         // Event Input and Processing

  1110. 

  1111.         {

  1112.             // ----------------------------------------------------------------------------------------------------

  1113.             // MIDI Input (External)

  1114. 

  1115.             if (pData->extNotes.mutex.tryLock())

  1116.             {

  1117.                 for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin2(); it.valid(); it.next())

  1118.                 {

  1119.                     const ExternalMidiNote& note(it.getValue(kExternalMidiNoteFallback));

  1120.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1121. 

  1122.                     if (note.velo > 0)

  1123.                         fluid_synth_noteon(fSynth, note.channel, note.note, note.velo);

  1124.                     else

  1125.                         fluid_synth_noteoff(fSynth,note.channel, note.note);

  1126.                 }

  1127. 

  1128.                 pData->extNotes.data.clear();

  1129.                 pData->extNotes.mutex.unlock();

  1130. 

  1131.             } // End of MIDI Input (External)

  1132. 

  1133.             // ----------------------------------------------------------------------------------------------------

  1134.             // Event Input (System)

  1135. 

  1136. #ifndef BUILD_BRIDGE

  1137.             bool allNotesOffSent = false;

  1138. #endif

  1139.             uint32_t timeOffset = 0;

  1140. 

  1141.             uint32_t nextBankIds[MAX_MIDI_CHANNELS] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 };

  1142. 

  1143.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1144.                 nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1145. 

  1146.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1147.             {

  1148.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1149. 

  1150.                 uint32_t eventTime = event.time;

  1151.                 CARLA_SAFE_ASSERT_UINT2_CONTINUE(eventTime < frames, eventTime, frames);

  1152. 

  1153.                 if (eventTime < timeOffset)

  1154.                 {

  1155.                     carla_stderr2("Timing error, eventTime:%u < timeOffset:%u for '%s'",

  1156.                                   eventTime, timeOffset, pData->name);

  1157.                     eventTime = timeOffset;

  1158.                 }

  1159.                 else if (eventTime > timeOffset)

  1160.                 {

  1161.                     if (processSingle(audioOut, eventTime - timeOffset, timeOffset))

  1162.                     {

  1163.                         timeOffset = eventTime;

  1164. 

  1165.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1166.                             nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1167.                     }

  1168.                 }

  1169. 

  1170.                 // Control change

  1171.                 switch (event.type)

  1172.                 {

  1173.                 case kEngineEventTypeNull:

  1174.                     break;

  1175. 

  1176.                 case kEngineEventTypeControl:

  1177.                 {

  1178.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1179. 

  1180.                     switch (ctrlEvent.type)

  1181.                     {

  1182.                     case kEngineControlEventTypeNull:

  1183.                         break;

  1184. 

  1185.                     case kEngineControlEventTypeParameter:

  1186.                     {

  1187. #ifndef BUILD_BRIDGE

  1188.                         // Control backend stuff

  1189.                         if (event.channel == pData->ctrlChannel)

  1190.                         {

  1191.                             float value;

  1192. 

  1193.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1194.                             {

  1195.                                 value = ctrlEvent.value;

  1196.                                 setDryWetRT(value);

  1197.                             }

  1198. 

  1199.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1200.                             {

  1201.                                 value = ctrlEvent.value*127.0f/100.0f;

  1202.                                 setVolumeRT(value);

  1203.                             }

  1204. 

  1205.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1206.                             {

  1207.                                 float left, right;

  1208.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1209. 

  1210.                                 if (value < 0.0f)

  1211.                                 {

  1212.                                     left  = -1.0f;

  1213.                                     right = (value*2.0f)+1.0f;

  1214.                                 }

  1215.                                 else if (value > 0.0f)

  1216.                                 {

  1217.                                     left  = (value*2.0f)-1.0f;

  1218.                                     right = 1.0f;

  1219.                                 }

  1220.                                 else

  1221.                                 {

  1222.                                     left  = -1.0f;

  1223.                                     right = 1.0f;

  1224.                                 }

  1225. 

  1226.                                 setBalanceLeftRT(left);

  1227.                                 setBalanceRightRT(right);

  1228.                             }

  1229.                         }

  1230. #endif

  1231.                         // Control plugin parameters

  1232.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1233.                         {

  1234.                             if (pData->param.data[k].midiChannel != event.channel)

  1235.                                 continue;

  1236.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1237.                                 continue;

  1238.                             if (pData->param.data[k].hints != PARAMETER_INPUT)

  1239.                                 continue;

  1240.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1241.                                 continue;

  1242. 

  1243.                             float value;

  1244. 

  1245.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1246.                             {

  1247.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1248.                             }

  1249.                             else

  1250.                             {

  1251.                                 if (pData->param.data[k].hints & PARAMETER_IS_LOGARITHMIC)

  1252.                                     value = pData->param.ranges[k].getUnnormalizedLogValue(ctrlEvent.value);

  1253.                                 else

  1254.                                     value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1255. 

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

  1257.                                     value = std::rint(value);

  1258.                             }

  1259. 

  1260.                             setParameterValueRT(k, value);

  1261.                         }

  1262. 

  1263.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param < MAX_MIDI_CONTROL)

  1264.                         {

  1265.                             fluid_synth_cc(fSynth, event.channel, ctrlEvent.param, int(ctrlEvent.value*127.0f));

  1266.                         }

  1267.                         break;

  1268.                     }

  1269. 

  1270.                     case kEngineControlEventTypeMidiBank:

  1271.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1272.                             nextBankIds[event.channel] = ctrlEvent.param;

  1273.                         break;

  1274. 

  1275.                     case kEngineControlEventTypeMidiProgram:

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

  1277.                         {

  1278.                             const uint32_t bankId(nextBankIds[event.channel]);

  1279.                             const uint32_t progId(ctrlEvent.param);

  1280. 

  1281.                             // TODO int32_t midiprog.find(bank, prog)

  1282.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1283.                             {

  1284.                                 if (pData->midiprog.data[k].bank == bankId && pData->midiprog.data[k].program == progId)

  1285.                                 {

  1286.                                     fluid_synth_program_select(fSynth, event.channel, fSynthId, bankId, progId);

  1287.                                     fCurMidiProgs[event.channel] = static_cast<int32_t>(k);

  1288. 

  1289.                                     if (event.channel == pData->ctrlChannel)

  1290.                                         pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, static_cast<int32_t>(k), 0, 0.0f);

  1291. 

  1292.                                     break;

  1293.                                 }

  1294.                             }

  1295.                         }

  1296.                         break;

  1297. 

  1298.                     case kEngineControlEventTypeAllSoundOff:

  1299.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1300.                             fluid_synth_all_sounds_off(fSynth, event.channel);

  1301.                         break;

  1302. 

  1303.                     case kEngineControlEventTypeAllNotesOff:

  1304.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1305.                         {

  1306. #ifndef BUILD_BRIDGE

  1307.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1308.                             {

  1309.                                 allNotesOffSent = true;

  1310.                                 sendMidiAllNotesOffToCallback();

  1311.                             }

  1312. #endif

  1313. 

  1314.                             fluid_synth_all_notes_off(fSynth, event.channel);

  1315.                         }

  1316.                         break;

  1317.                     }

  1318. 

  1319.                     break;

  1320.                 }

  1321. 

  1322.                 case kEngineEventTypeMidi: {

  1323.                     const EngineMidiEvent& midiEvent(event.midi);

  1324. 

  1325.                     if (midiEvent.size > EngineMidiEvent::kDataSize)

  1326.                         continue;

  1327. 

  1328.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1329. 

  1330.                     // Fix bad note-off

  1331.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1332.                         status = MIDI_STATUS_NOTE_OFF;

  1333. 

  1334.                     switch (status)

  1335.                     {

  1336.                     case MIDI_STATUS_NOTE_OFF: {

  1337.                         const uint8_t note = midiEvent.data[1];

  1338. 

  1339.                         fluid_synth_noteoff(fSynth, event.channel, note);

  1340. 

  1341.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, note, 0.0f);

  1342.                         break;

  1343.                     }

  1344. 

  1345.                     case MIDI_STATUS_NOTE_ON: {

  1346.                         const uint8_t note = midiEvent.data[1];

  1347.                         const uint8_t velo = midiEvent.data[2];

  1348. 

  1349.                         fluid_synth_noteon(fSynth, event.channel, note, velo);

  1350. 

  1351.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, note, velo);

  1352.                         break;

  1353.                     }

  1354. 

  1355.                     case MIDI_STATUS_POLYPHONIC_AFTERTOUCH:

  1356.                         if (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH)

  1357.                         {

  1358.                             //const uint8_t note     = midiEvent.data[1];

  1359.                             //const uint8_t pressure = midiEvent.data[2];

  1360. 

  1361.                             // not in fluidsynth API

  1362.                         }

  1363.                         break;

  1364. 

  1365.                     case MIDI_STATUS_CONTROL_CHANGE:

  1366.                         if (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1367.                         {

  1368.                             const uint8_t control = midiEvent.data[1];

  1369.                             const uint8_t value   = midiEvent.data[2];

  1370. 

  1371.                             fluid_synth_cc(fSynth, event.channel, control, value);

  1372.                         }

  1373.                         break;

  1374. 

  1375.                     case MIDI_STATUS_CHANNEL_PRESSURE:

  1376.                         if (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE)

  1377.                         {

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

  1379. 

  1380.                             fluid_synth_channel_pressure(fSynth, event.channel, pressure);;

  1381.                         }

  1382.                         break;

  1383. 

  1384.                     case MIDI_STATUS_PITCH_WHEEL_CONTROL:

  1385.                         if (pData->options & PLUGIN_OPTION_SEND_PITCHBEND)

  1386.                         {

  1387.                             const uint8_t lsb = midiEvent.data[1];

  1388.                             const uint8_t msb = midiEvent.data[2];

  1389.                             const int   value = ((msb << 7) | lsb);

  1390. 

  1391.                             fluid_synth_pitch_bend(fSynth, event.channel, value);

  1392.                         }

  1393.                         break;

  1394. 

  1395.                     default:

  1396.                         continue;

  1397.                         break;

  1398.                     } // switch (status)

  1399.                 } break;

  1400.                 } // switch (event.type)

  1401.             }

  1402. 

  1403.             pData->postRtEvents.trySplice();

  1404. 

  1405.             if (frames > timeOffset)

  1406.                 processSingle(audioOut, frames - timeOffset, timeOffset);

  1407. 

  1408.         } // End of Event Input and Processing

  1409. 

  1410. #ifndef BUILD_BRIDGE

  1411.         // --------------------------------------------------------------------------------------------------------

  1412.         // Control Output

  1413. 

  1414.         {

  1415.             uint32_t k = FluidSynthVoiceCount;

  1416.             fParamBuffers[k] = float(fluid_synth_get_active_voice_count(fSynth));

  1417.             pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1418. 

  1419.             if (pData->param.data[k].midiCC > 0)

  1420.             {

  1421.                 float value(pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]));

  1422.                 pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), 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 default options

  1678. 

  1679.         pData->options  = 0x0;

  1680.         pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1681.         pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1682.         pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  1683.         pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1684. 

  1685.         if (options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1686.             pData->options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  1687. 

  1688.         return true;

  1689.     }

  1690. 

  1691. private:

  1692.     void initializeFluidDefaultsIfNeeded()

  1693.     {

  1694.         if (sFluidDefaultsStored)

  1695.             return;

  1696.         sFluidDefaultsStored = true;

  1697.         // reverb defaults

  1698.         sFluidDefaults[FluidSynthReverbOnOff] = 1.0f;

  1699. #if FLUIDSYNTH_VERSION_MAJOR < 2

  1700.         sFluidDefaults[FluidSynthReverbRoomSize] = FLUID_REVERB_DEFAULT_ROOMSIZE;

  1701.         sFluidDefaults[FluidSynthReverbDamp] = FLUID_REVERB_DEFAULT_DAMP;

  1702.         sFluidDefaults[FluidSynthReverbLevel] = FLUID_REVERB_DEFAULT_LEVEL;

  1703.         sFluidDefaults[FluidSynthReverbWidth] = FLUID_REVERB_DEFAULT_WIDTH;

  1704. #else

  1705.         double reverbVal;

  1706.         fluid_settings_getnum_default(fSettings, "synth.reverb.room-size", &reverbVal);

  1707.         sFluidDefaults[FluidSynthReverbRoomSize] = reverbVal;

  1708.         fluid_settings_getnum_default(fSettings, "synth.reverb.damp", &reverbVal);

  1709.         sFluidDefaults[FluidSynthReverbDamp] = reverbVal;

  1710.         fluid_settings_getnum_default(fSettings, "synth.reverb.level", &reverbVal);

  1711.         sFluidDefaults[FluidSynthReverbLevel] = reverbVal;

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

  1713.         sFluidDefaults[FluidSynthReverbWidth] = reverbVal;

  1714. #endif

  1715. 

  1716.         // chorus defaults

  1717.         sFluidDefaults[FluidSynthChorusOnOff] = 1.0f;

  1718. #if FLUIDSYNTH_VERSION_MAJOR < 2

  1719.         sFluidDefaults[FluidSynthChorusNr] = FLUID_CHORUS_DEFAULT_N;

  1720.         sFluidDefaults[FluidSynthChorusLevel] = FLUID_CHORUS_DEFAULT_LEVEL;

  1721.         sFluidDefaults[FluidSynthChorusSpeedHz] = FLUID_CHORUS_DEFAULT_SPEED;

  1722.         sFluidDefaults[FluidSynthChorusDepthMs] = FLUID_CHORUS_DEFAULT_DEPTH;

  1723.         sFluidDefaults[FluidSynthChorusType] = FLUID_CHORUS_DEFAULT_TYPE;

  1724. #else

  1725.         double chorusVal;

  1726.         fluid_settings_getnum_default(fSettings, "synth.chorus.nr", &chorusVal);

  1727.         sFluidDefaults[FluidSynthChorusNr] = chorusVal;

  1728.         fluid_settings_getnum_default(fSettings, "synth.chorus.level", &chorusVal);

  1729.         sFluidDefaults[FluidSynthChorusLevel] = chorusVal;

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

  1731.         sFluidDefaults[FluidSynthChorusSpeedHz] = chorusVal;

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

  1733.         sFluidDefaults[FluidSynthChorusDepthMs] = chorusVal;

  1734.         // There is no settings for chorus default type

  1735.         sFluidDefaults[FluidSynthChorusType] = (float)fluid_synth_get_chorus_type(fSynth);

  1736. #endif

  1737. 

  1738.         // misc. defaults

  1739.         sFluidDefaults[FluidSynthPolyphony] = (float)fluid_synth_get_polyphony(fSynth);

  1740.         sFluidDefaults[FluidSynthInterpolation] = FLUID_INTERP_DEFAULT;

  1741.         sFluidDefaults[FluidSynthVoiceCount] = 0.0f;

  1742.     }

  1743. 

  1744.     enum FluidSynthParameters {

  1745.         FluidSynthReverbOnOff    = 0,

  1746.         FluidSynthReverbRoomSize = 1,

  1747.         FluidSynthReverbDamp     = 2,

  1748.         FluidSynthReverbLevel    = 3,

  1749.         FluidSynthReverbWidth    = 4,

  1750.         FluidSynthChorusOnOff    = 5,

  1751.         FluidSynthChorusNr       = 6,

  1752.         FluidSynthChorusLevel    = 7,

  1753.         FluidSynthChorusSpeedHz  = 8,

  1754.         FluidSynthChorusDepthMs  = 9,

  1755.         FluidSynthChorusType     = 10,

  1756.         FluidSynthPolyphony      = 11,

  1757.         FluidSynthInterpolation  = 12,

  1758.         FluidSynthVoiceCount     = 13,

  1759.         FluidSynthParametersMax  = 14

  1760.     };

  1761. 

  1762.     const bool kUse16Outs;

  1763. 

  1764.     fluid_settings_t* fSettings;

  1765.     fluid_synth_t*    fSynth;

  1766.     uint              fSynthId;

  1767. 

  1768.     float** fAudio16Buffers;

  1769.     float   fParamBuffers[FluidSynthParametersMax];

  1770. 

  1771.     static bool  sFluidDefaultsStored;

  1772.     static float sFluidDefaults[FluidSynthParametersMax];

  1773. 

  1774.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  1775. 

  1776.     const char* fLabel;

  1777. 

  1778.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginFluidSynth)

  1779. };

  1780. 

  1781. bool CarlaPluginFluidSynth::sFluidDefaultsStored = false;

  1782. float CarlaPluginFluidSynth::sFluidDefaults[FluidSynthParametersMax];

  1783. 

  1784. CARLA_BACKEND_END_NAMESPACE

  1785. 

  1786. #endif // HAVE_FLUIDSYNTH

  1787. 

  1788. CARLA_BACKEND_START_NAMESPACE

  1789. 

  1790. // -------------------------------------------------------------------------------------------------------------------

  1791. 

  1792. CarlaPlugin* CarlaPlugin::newFluidSynth(const Initializer& init, const bool use16Outs)

  1793. {

  1794.     carla_debug("CarlaPlugin::newFluidSynth({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "}, %s)", init.engine, init.filename, init.name, init.label, init.uniqueId, bool2str(use16Outs));

  1795. 

  1796. #ifdef HAVE_FLUIDSYNTH

  1797.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && use16Outs)

  1798.     {

  1799.         init.engine->setLastError("Carla's rack mode can only work with Stereo modules,"

  1800.                                   "please choose the 2-channel only SoundFont version");

  1801.         return nullptr;

  1802.     }

  1803. 

  1804.     if (! fluid_is_soundfont(init.filename))

  1805.     {

  1806.         init.engine->setLastError("Requested file is not a valid SoundFont");

  1807.         return nullptr;

  1808.     }

  1809. 

  1810.     CarlaPluginFluidSynth* const plugin(new CarlaPluginFluidSynth(init.engine, init.id,  use16Outs));

  1811. 

  1812.     if (! plugin->init(init.filename, init.name, init.label, init.options))

  1813.     {

  1814.         delete plugin;

  1815.         return nullptr;

  1816.     }

  1817. 

  1818.     return plugin;

  1819. #else

  1820.     init.engine->setLastError("fluidsynth support not available");

  1821.     return nullptr;

  1822. 

  1823.     // unused

  1824.     (void)use16Outs;

  1825. #endif

  1826. }

  1827. 

  1828. // -------------------------------------------------------------------------------------------------------------------

  1829. 

  1830. CARLA_BACKEND_END_NAMESPACE