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

  77. 

  78.         // set default values

  79.         fluid_synth_set_reverb_on(fSynth, 1);

  80.         fluid_synth_set_reverb(fSynth, FLUID_REVERB_DEFAULT_ROOMSIZE, FLUID_REVERB_DEFAULT_DAMP, FLUID_REVERB_DEFAULT_WIDTH, FLUID_REVERB_DEFAULT_LEVEL);

  81. 

  82.         fluid_synth_set_chorus_on(fSynth, 1);

  83.         fluid_synth_set_chorus(fSynth, FLUID_CHORUS_DEFAULT_N, FLUID_CHORUS_DEFAULT_LEVEL, FLUID_CHORUS_DEFAULT_SPEED, FLUID_CHORUS_DEFAULT_DEPTH, FLUID_CHORUS_DEFAULT_TYPE);

  84. 

  85.         fluid_synth_set_polyphony(fSynth, FLUID_DEFAULT_POLYPHONY);

  86.         fluid_synth_set_gain(fSynth, 1.0f);

  87. 

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

  89.             fluid_synth_set_interp_method(fSynth, i, FLUID_INTERP_DEFAULT);

  90.     }

  91. 

  92.     ~CarlaPluginFluidSynth() override

  93.     {

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

  95. 

  96.         pData->singleMutex.lock();

  97.         pData->masterMutex.lock();

  98. 

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

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

  101. 

  102.         if (pData->active)

  103.         {

  104.             deactivate();

  105.             pData->active = false;

  106.         }

  107. 

  108.         if (fSynth != nullptr)

  109.         {

  110.             delete_fluid_synth(fSynth);

  111.             fSynth = nullptr;

  112.         }

  113. 

  114.         if (fSettings != nullptr)

  115.         {

  116.             delete_fluid_settings(fSettings);

  117.             fSettings = nullptr;

  118.         }

  119. 

  120.         if (fLabel != nullptr)

  121.         {

  122.             delete[] fLabel;

  123.             fLabel = nullptr;

  124.         }

  125. 

  126.         clearBuffers();

  127.     }

  128. 

  129.     // -------------------------------------------------------------------

  130.     // Information (base)

  131. 

  132.     PluginType getType() const noexcept override

  133.     {

  134.         return PLUGIN_SF2;

  135.     }

  136. 

  137.     PluginCategory getCategory() const noexcept override

  138.     {

  139.         return PLUGIN_CATEGORY_SYNTH;

  140.     }

  141. 

  142.     // -------------------------------------------------------------------

  143.     // Information (count)

  144. 

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

  146.     {

  147.         switch (parameterId)

  148.         {

  149.         case FluidSynthChorusType:

  150.             return 2;

  151.         case FluidSynthInterpolation:

  152.             return 4;

  153.         default:

  154.             return 0;

  155.         }

  156.     }

  157. 

  158.     // -------------------------------------------------------------------

  159.     // Information (current data)

  160. 

  161.     // nothing

  162. 

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

  164.     // Information (per-plugin data)

  165. 

  166.     uint getOptionsAvailable() const noexcept override

  167.     {

  168.         uint options = 0x0;

  169. 

  170.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  171.         options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  172.         options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  173.         options |= PLUGIN_OPTION_SEND_PITCHBEND;

  174.         options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  175. 

  176.         return options;

  177.     }

  178. 

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

  180.     {

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

  182. 

  183.         return fParamBuffers[parameterId];

  184.     }

  185. 

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

  187.     {

  188.         switch (parameterId)

  189.         {

  190.         case FluidSynthChorusType:

  191.             switch (scalePointId)

  192.             {

  193.             case 0:

  194.                 return FLUID_CHORUS_MOD_SINE;

  195.             case 1:

  196.                 return FLUID_CHORUS_MOD_TRIANGLE;

  197.             default:

  198.                 return FLUID_CHORUS_DEFAULT_TYPE;

  199.             }

  200.         case FluidSynthInterpolation:

  201.             switch (scalePointId)

  202.             {

  203.             case 0:

  204.                 return FLUID_INTERP_NONE;

  205.             case 1:

  206.                 return FLUID_INTERP_LINEAR;

  207.             case 2:

  208.                 return FLUID_INTERP_4THORDER;

  209.             case 3:

  210.                 return FLUID_INTERP_7THORDER;

  211.             default:

  212.                 return FLUID_INTERP_DEFAULT;

  213.             }

  214.         default:

  215.             return 0.0f;

  216.         }

  217.     }

  218. 

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

  220.     {

  221.         if (fLabel != nullptr)

  222.         {

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

  224.             return;

  225.         }

  226. 

  227.         CarlaPlugin::getLabel(strBuf);

  228.     }

  229. 

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

  231.     {

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

  233.     }

  234. 

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

  236.     {

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

  238.     }

  239. 

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

  241.     {

  242.         getLabel(strBuf);

  243.     }

  244. 

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

  246.     {

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

  248. 

  249.         switch (parameterId)

  250.         {

  251.         case FluidSynthReverbOnOff:

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

  253.             return;

  254.         case FluidSynthReverbRoomSize:

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

  256.             return;

  257.         case FluidSynthReverbDamp:

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

  259.             return;

  260.         case FluidSynthReverbLevel:

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

  262.             return;

  263.         case FluidSynthReverbWidth:

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

  265.             return;

  266.         case FluidSynthChorusOnOff:

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

  268.             return;

  269.         case FluidSynthChorusNr:

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

  271.             return;

  272.         case FluidSynthChorusLevel:

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

  274.             return;

  275.         case FluidSynthChorusSpeedHz:

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

  277.             return;

  278.         case FluidSynthChorusDepthMs:

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

  280.             return;

  281.         case FluidSynthChorusType:

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

  283.             return;

  284.         case FluidSynthPolyphony:

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

  286.             return;

  287.         case FluidSynthInterpolation:

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

  289.             return;

  290.         case FluidSynthVoiceCount:

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

  292.             return;

  293.         }

  294. 

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

  296.     }

  297. 

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

  299.     {

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

  301. 

  302.         switch (parameterId)

  303.         {

  304.         case FluidSynthChorusSpeedHz:

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

  306.             return;

  307.         case FluidSynthChorusDepthMs:

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

  309.             return;

  310.         }

  311. 

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

  313.     }

  314. 

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

  316.     {

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

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

  319. 

  320.         switch (parameterId)

  321.         {

  322.         case FluidSynthChorusType:

  323.             switch (scalePointId)

  324.             {

  325.             case 0:

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

  327.                 return;

  328.             case 1:

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

  330.                 return;

  331.             }

  332.         case FluidSynthInterpolation:

  333.             switch (scalePointId)

  334.             {

  335.             case 0:

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

  337.                 return;

  338.             case 1:

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

  340.                 return;

  341.             case 2:

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

  343.                 return;

  344.             case 3:

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

  346.                 return;

  347.             }

  348.         }

  349. 

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

  351.     }

  352. 

  353.     // -------------------------------------------------------------------

  354.     // Set data (state)

  355. 

  356.     void prepareForSave() override

  357.     {

  358.         char strBuf[STR_MAX+1];

  359.         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],

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

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

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

  363. 

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

  365.     }

  366. 

  367.     // -------------------------------------------------------------------

  368.     // Set data (internal stuff)

  369. 

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

  371.     {

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

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

  374. 

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

  376.     }

  377. 

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

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

  380. 

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

  382.     {

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

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

  385. 

  386.         float fixedValue;

  387. 

  388.         {

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

  390.             fixedValue = setParameterValueInFluidSynth(parameterId, value);

  391. 

  392.         }

  393. 

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

  395.     }

  396. 

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

  398.     {

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

  400. 

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

  402.     }

  403. 

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

  405.     {

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

  407. 

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

  409.         fParamBuffers[parameterId] = fixedValue;

  410. 

  411.         switch (parameterId)

  412.         {

  413.         case FluidSynthReverbOnOff:

  414.             try {

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

  416.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_reverb_on")

  417.             break;

  418. 

  419.         case FluidSynthReverbRoomSize:

  420.         case FluidSynthReverbDamp:

  421.         case FluidSynthReverbLevel:

  422.         case FluidSynthReverbWidth:

  423.             try {

  424.                 fluid_synth_set_reverb(fSynth,

  425.                                        fParamBuffers[FluidSynthReverbRoomSize],

  426.                                        fParamBuffers[FluidSynthReverbDamp],

  427.                                        fParamBuffers[FluidSynthReverbWidth],

  428.                                        fParamBuffers[FluidSynthReverbLevel]);

  429.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_reverb")

  430.             break;

  431. 

  432.         case FluidSynthChorusOnOff:

  433.             try {

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

  435.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_chorus_on")

  436.             break;

  437. 

  438.         case FluidSynthChorusNr:

  439.         case FluidSynthChorusLevel:

  440.         case FluidSynthChorusSpeedHz:

  441.         case FluidSynthChorusDepthMs:

  442.         case FluidSynthChorusType:

  443.             try {

  444.                 fluid_synth_set_chorus(fSynth,

  445.                                        (int)fParamBuffers[FluidSynthChorusNr],

  446.                                        fParamBuffers[FluidSynthChorusLevel],

  447.                                        fParamBuffers[FluidSynthChorusSpeedHz],

  448.                                        fParamBuffers[FluidSynthChorusDepthMs],

  449.                                        (int)fParamBuffers[FluidSynthChorusType]);

  450.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_chorus")

  451.             break;

  452. 

  453.         case FluidSynthPolyphony:

  454.             try {

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

  456.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_polyphony")

  457.             break;

  458. 

  459.         case FluidSynthInterpolation:

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

  461.             {

  462.                 try {

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

  464.                 } CARLA_SAFE_EXCEPTION_BREAK("fluid_synth_set_interp_method")

  465.             }

  466.             break;

  467. 

  468.         default:

  469.             break;

  470.         }

  471. 

  472.         return fixedValue;

  473.     }

  474. 

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

  476.     {

  477.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

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

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

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

  482. 

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

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

  485. 

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

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

  488. 

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

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

  491. 

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

  493. 

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

  495.         {

  496.             uint8_t channel = 0;

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

  498.             {

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

  500. 

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

  502.                 {

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

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

  505. 

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

  507.                     fCurMidiProgs[channel] = index;

  508. 

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

  510.                     {

  511.                         pData->midiprog.current = index;

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

  513.                     }

  514.                 }

  515. 

  516.                 ++channel;

  517.             }

  518.             CARLA_SAFE_ASSERT(channel == MAX_MIDI_CHANNELS);

  519.         }

  520. 

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

  522.     }

  523. 

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

  525.     {

  526.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

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

  529. 

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

  531.         {

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

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

  534. 

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

  536. 

  537.             try {

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

  539.             } CARLA_SAFE_EXCEPTION("fluid_synth_program_select")

  540. 

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

  542.         }

  543. 

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

  545.     }

  546. 

  547.     void setMidiProgramRT(const uint32_t uindex) noexcept override

  548.     {

  549.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

  551. 

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

  553.         {

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

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

  556. 

  557.             try {

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

  559.             } CARLA_SAFE_EXCEPTION("fluid_synth_program_select")

  560. 

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

  562.         }

  563. 

  564.         CarlaPlugin::setMidiProgramRT(uindex);

  565.     }

  566. 

  567.     // -------------------------------------------------------------------

  568.     // Set ui stuff

  569. 

  570.     // nothing

  571. 

  572.     // -------------------------------------------------------------------

  573.     // Plugin state

  574. 

  575.     void reload() override

  576.     {

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

  578.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

  580. 

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

  582. 

  583.         // Safely disable plugin for reload

  584.         const ScopedDisabler sd(this);

  585. 

  586.         if (pData->active)

  587.             deactivate();

  588. 

  589.         clearBuffers();

  590. 

  591.         uint32_t aOuts, params;

  592.         aOuts  = kUse16Outs ? 32 : 2;

  593.         params = FluidSynthParametersMax;

  594. 

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

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

  597. 

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

  599.         CarlaString portName;

  600. 

  601.         // ---------------------------------------

  602.         // Audio Outputs

  603. 

  604.         if (kUse16Outs)

  605.         {

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

  607.             {

  608.                 portName.clear();

  609. 

  610.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  611.                 {

  612.                     portName  = pData->name;

  613.                     portName += ":";

  614.                 }

  615. 

  616.                 portName += "out-";

  617. 

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

  619.                     portName += "0";

  620. 

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

  622. 

  623.                 if (i % 2 == 0)

  624.                     portName += "L";

  625.                 else

  626.                     portName += "R";

  627. 

  628.                 portName.truncate(portNameSize);

  629. 

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

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

  632.             }

  633. 

  634.             fAudio16Buffers = new float*[aOuts];

  635. 

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

  637.                 fAudio16Buffers[i] = nullptr;

  638.         }

  639.         else

  640.         {

  641.             // out-left

  642.             portName.clear();

  643. 

  644.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  645.             {

  646.                 portName  = pData->name;

  647.                 portName += ":";

  648.             }

  649. 

  650.             portName += "out-left";

  651.             portName.truncate(portNameSize);

  652. 

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

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

  655. 

  656.             // out-right

  657.             portName.clear();

  658. 

  659.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  660.             {

  661.                 portName  = pData->name;

  662.                 portName += ":";

  663.             }

  664. 

  665.             portName += "out-right";

  666.             portName.truncate(portNameSize);

  667. 

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

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

  670.         }

  671. 

  672.         // ---------------------------------------

  673.         // Event Input

  674. 

  675.         {

  676.             portName.clear();

  677. 

  678.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  679.             {

  680.                 portName  = pData->name;

  681.                 portName += ":";

  682.             }

  683. 

  684.             portName += "events-in";

  685.             portName.truncate(portNameSize);

  686. 

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

  688.         }

  689. 

  690.         // ---------------------------------------

  691.         // Event Output

  692. 

  693.         {

  694.             portName.clear();

  695. 

  696.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  697.             {

  698.                 portName  = pData->name;

  699.                 portName += ":";

  700.             }

  701. 

  702.             portName += "events-out";

  703.             portName.truncate(portNameSize);

  704. 

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

  706.         }

  707. 

  708.         // ---------------------------------------

  709.         // Parameters

  710. 

  711.         {

  712.             int j;

  713. 

  714.             // ----------------------

  715.             j = FluidSynthReverbOnOff;

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

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

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

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

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

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

  722.             pData->param.ranges[j].def = 1.0f;

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

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

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

  726. 

  727.             // ----------------------

  728.             j = FluidSynthReverbRoomSize;

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

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

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

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

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

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

  735.             pData->param.ranges[j].def = FLUID_REVERB_DEFAULT_ROOMSIZE;

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

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

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

  739. 

  740.             // ----------------------

  741.             j = FluidSynthReverbDamp;

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

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

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

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

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

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

  748.             pData->param.ranges[j].def = FLUID_REVERB_DEFAULT_DAMP;

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

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

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

  752. 

  753.             // ----------------------

  754.             j = FluidSynthReverbLevel;

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

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

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

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

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

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

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

  762.             pData->param.ranges[j].def = FLUID_REVERB_DEFAULT_LEVEL;

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

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

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

  766. 

  767.             // ----------------------

  768.             j = FluidSynthReverbWidth;

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

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

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

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

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

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

  775.             pData->param.ranges[j].def = FLUID_REVERB_DEFAULT_WIDTH;

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

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

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

  779. 

  780.             // ----------------------

  781.             j = FluidSynthChorusOnOff;

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

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

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

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

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

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

  788.             pData->param.ranges[j].def = 1.0f;

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

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

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

  792. 

  793.             // ----------------------

  794.             j = FluidSynthChorusNr;

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

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

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

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

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

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

  801.             pData->param.ranges[j].def = FLUID_CHORUS_DEFAULT_N;

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

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

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

  805. 

  806.             // ----------------------

  807.             j = FluidSynthChorusLevel;

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

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

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

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

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

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

  814.             pData->param.ranges[j].def = FLUID_CHORUS_DEFAULT_LEVEL;

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

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

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

  818. 

  819.             // ----------------------

  820.             j = FluidSynthChorusSpeedHz;

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

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

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

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

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

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

  827.             pData->param.ranges[j].def = FLUID_CHORUS_DEFAULT_SPEED;

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

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

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

  831. 

  832.             // ----------------------

  833.             j = FluidSynthChorusDepthMs;

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

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

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

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

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

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

  840.             pData->param.ranges[j].def = FLUID_CHORUS_DEFAULT_DEPTH;

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

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

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

  844. 

  845.             // ----------------------

  846.             j = FluidSynthChorusType;

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

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

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

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

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

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

  853.             pData->param.ranges[j].def = FLUID_CHORUS_DEFAULT_TYPE;

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

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

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

  857. 

  858.             // ----------------------

  859.             j = FluidSynthPolyphony;

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

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

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

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

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

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

  866.             pData->param.ranges[j].def = (float)fluid_synth_get_polyphony(fSynth);

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

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

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

  870. 

  871.             // ----------------------

  872.             j = FluidSynthInterpolation;

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

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

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

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

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

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

  879.             pData->param.ranges[j].def = FLUID_INTERP_DEFAULT;

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

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

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

  883. 

  884.             // ----------------------

  885.             j = FluidSynthVoiceCount;

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

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

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

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

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

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

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

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

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

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

  896. 

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

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

  899.         }

  900. 

  901.         // ---------------------------------------

  902. 

  903.         // plugin hints

  904.         pData->hints  = 0x0;

  905.         pData->hints |= PLUGIN_IS_SYNTH;

  906.         pData->hints |= PLUGIN_CAN_VOLUME;

  907.         pData->hints |= PLUGIN_USES_MULTI_PROGS;

  908. 

  909.         if (! kUse16Outs)

  910.             pData->hints |= PLUGIN_CAN_BALANCE;

  911. 

  912.         // extra plugin hints

  913.         pData->extraHints  = 0x0;

  914.         pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  915. 

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

  917.         reloadPrograms(true);

  918. 

  919.         if (pData->active)

  920.             activate();

  921. 

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

  923.     }

  924. 

  925.     void reloadPrograms(const bool doInit) override

  926.     {

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

  928. 

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

  930.         bool hasDrums = false;

  931.         uint32_t drumIndex, drumProg;

  932.         drumIndex = drumProg = 0;

  933. 

  934.         // Delete old programs

  935.         pData->midiprog.clear();

  936. 

  937.         // Query new programs

  938.         uint32_t count = 0;

  939. 

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

  941.         {

  942.             fluid_preset_t f_preset;

  943. 

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

  945.             f_sfont->iteration_start(f_sfont);

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

  947.                 ++count;

  948. 

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

  950.             CARLA_SAFE_ASSERT_RETURN(count > 0,);

  951. 

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

  953. 

  954.             // Update data

  955.             int tmp;

  956.             uint32_t i = 0;

  957.             f_sfont->iteration_start(f_sfont);

  958. 

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

  960.             {

  961.                 CARLA_SAFE_ASSERT_BREAK(i < count);

  962. 

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

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

  965. 

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

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

  968. 

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

  970. 

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

  972.                 {

  973.                     hasDrums  = true;

  974.                     drumIndex = i;

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

  976.                 }

  977. 

  978.                 ++i;

  979.             }

  980.         }

  981.         else

  982.         {

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

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

  985.             return;

  986.         }

  987. 

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

  989.         // Update OSC Names

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

  991.         {

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

  993. 

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

  995.                 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);

  996.         }

  997. #endif

  998. 

  999.         if (doInit)

  1000.         {

  1001.             fluid_synth_program_reset(fSynth);

  1002. 

  1003.             // select first program, or 128 for ch10

  1004.             for (int i=0; i < MAX_MIDI_CHANNELS && i != 9; ++i)

  1005.             {

  1006.                 fluid_synth_set_channel_type(fSynth, i, CHANNEL_TYPE_MELODIC);

  1007.                 fluid_synth_program_select(fSynth, i, fSynthId, pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1008. 

  1009.                 fCurMidiProgs[i] = 0;

  1010.             }

  1011. 

  1012.             if (hasDrums)

  1013.             {

  1014.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_DRUM);

  1015.                 fluid_synth_program_select(fSynth, 9, fSynthId, 128, drumProg);

  1016. 

  1017.                 fCurMidiProgs[9] = static_cast<int32_t>(drumIndex);

  1018.             }

  1019.             else

  1020.             {

  1021.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_MELODIC);

  1022.                 fluid_synth_program_select(fSynth, 9, fSynthId, pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1023. 

  1024.                 fCurMidiProgs[9] = 0;

  1025.             }

  1026. 

  1027.             pData->midiprog.current = 0;

  1028.         }

  1029.         else

  1030.         {

  1031.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1032.         }

  1033.     }

  1034. 

  1035.     // -------------------------------------------------------------------

  1036.     // Plugin processing

  1037. 

  1038.     void process(const float** const, float** const audioOut, const float** const, float** const, const uint32_t frames) override

  1039.     {

  1040.         // --------------------------------------------------------------------------------------------------------

  1041.         // Check if active

  1042. 

  1043.         if (! pData->active)

  1044.         {

  1045.             // disable any output sound

  1046.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1047.                 carla_zeroFloats(audioOut[i], frames);

  1048.             return;

  1049.         }

  1050. 

  1051.         // --------------------------------------------------------------------------------------------------------

  1052.         // Check if needs reset

  1053. 

  1054.         if (pData->needsReset)

  1055.         {

  1056.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1057.             {

  1058.                 for (int i=0; i < MAX_MIDI_CHANNELS; ++i)

  1059.                 {

  1060.                     fluid_synth_all_notes_off(fSynth, i);

  1061.                     fluid_synth_all_sounds_off(fSynth, i);

  1062.                 }

  1063.             }

  1064.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1065.             {

  1066.                 for (int i=0; i < MAX_MIDI_NOTE; ++i)

  1067.                     fluid_synth_noteoff(fSynth, pData->ctrlChannel, i);

  1068.             }

  1069. 

  1070.             pData->needsReset = false;

  1071.         }

  1072. 

  1073.         // --------------------------------------------------------------------------------------------------------

  1074.         // Event Input and Processing

  1075. 

  1076.         {

  1077.             // ----------------------------------------------------------------------------------------------------

  1078.             // MIDI Input (External)

  1079. 

  1080.             if (pData->extNotes.mutex.tryLock())

  1081.             {

  1082.                 for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin2(); it.valid(); it.next())

  1083.                 {

  1084.                     const ExternalMidiNote& note(it.getValue(kExternalMidiNoteFallback));

  1085.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1086. 

  1087.                     if (note.velo > 0)

  1088.                         fluid_synth_noteon(fSynth, note.channel, note.note, note.velo);

  1089.                     else

  1090.                         fluid_synth_noteoff(fSynth,note.channel, note.note);

  1091.                 }

  1092. 

  1093.                 pData->extNotes.data.clear();

  1094.                 pData->extNotes.mutex.unlock();

  1095. 

  1096.             } // End of MIDI Input (External)

  1097. 

  1098.             // ----------------------------------------------------------------------------------------------------

  1099.             // Event Input (System)

  1100. 

  1101. #ifndef BUILD_BRIDGE

  1102.             bool allNotesOffSent = false;

  1103. #endif

  1104.             uint32_t timeOffset = 0;

  1105. 

  1106.             uint32_t nextBankIds[MAX_MIDI_CHANNELS] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 };

  1107. 

  1108.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1109.                 nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1110. 

  1111.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1112.             {

  1113.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1114. 

  1115.                 uint32_t eventTime = event.time;

  1116.                 CARLA_SAFE_ASSERT_UINT2_CONTINUE(eventTime < frames, eventTime, frames);

  1117. 

  1118.                 if (eventTime < timeOffset)

  1119.                 {

  1120.                     carla_stderr2("Timing error, eventTime:%u < timeOffset:%u for '%s'",

  1121.                                   eventTime, timeOffset, pData->name);

  1122.                     eventTime = timeOffset;

  1123.                 }

  1124.                 else if (eventTime > timeOffset)

  1125.                 {

  1126.                     if (processSingle(audioOut, eventTime - timeOffset, timeOffset))

  1127.                     {

  1128.                         timeOffset = eventTime;

  1129. 

  1130.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1131.                             nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1132.                     }

  1133.                 }

  1134. 

  1135.                 // Control change

  1136.                 switch (event.type)

  1137.                 {

  1138.                 case kEngineEventTypeNull:

  1139.                     break;

  1140. 

  1141.                 case kEngineEventTypeControl:

  1142.                 {

  1143.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1144. 

  1145.                     switch (ctrlEvent.type)

  1146.                     {

  1147.                     case kEngineControlEventTypeNull:

  1148.                         break;

  1149. 

  1150.                     case kEngineControlEventTypeParameter:

  1151.                     {

  1152. #ifndef BUILD_BRIDGE

  1153.                         // Control backend stuff

  1154.                         if (event.channel == pData->ctrlChannel)

  1155.                         {

  1156.                             float value;

  1157. 

  1158.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1159.                             {

  1160.                                 value = ctrlEvent.value;

  1161.                                 setDryWetRT(value);

  1162.                             }

  1163. 

  1164.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1165.                             {

  1166.                                 value = ctrlEvent.value*127.0f/100.0f;

  1167.                                 setVolumeRT(value);

  1168.                             }

  1169. 

  1170.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1171.                             {

  1172.                                 float left, right;

  1173.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1174. 

  1175.                                 if (value < 0.0f)

  1176.                                 {

  1177.                                     left  = -1.0f;

  1178.                                     right = (value*2.0f)+1.0f;

  1179.                                 }

  1180.                                 else if (value > 0.0f)

  1181.                                 {

  1182.                                     left  = (value*2.0f)-1.0f;

  1183.                                     right = 1.0f;

  1184.                                 }

  1185.                                 else

  1186.                                 {

  1187.                                     left  = -1.0f;

  1188.                                     right = 1.0f;

  1189.                                 }

  1190. 

  1191.                                 setBalanceLeftRT(left);

  1192.                                 setBalanceRightRT(right);

  1193.                             }

  1194.                         }

  1195. #endif

  1196.                         // Control plugin parameters

  1197.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1198.                         {

  1199.                             if (pData->param.data[k].midiChannel != event.channel)

  1200.                                 continue;

  1201.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1202.                                 continue;

  1203.                             if (pData->param.data[k].hints != PARAMETER_INPUT)

  1204.                                 continue;

  1205.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1206.                                 continue;

  1207. 

  1208.                             float value;

  1209. 

  1210.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1211.                             {

  1212.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1213.                             }

  1214.                             else

  1215.                             {

  1216.                                 if (pData->param.data[k].hints & PARAMETER_IS_LOGARITHMIC)

  1217.                                     value = pData->param.ranges[k].getUnnormalizedLogValue(ctrlEvent.value);

  1218.                                 else

  1219.                                     value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1220. 

  1221.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1222.                                     value = std::rint(value);

  1223.                             }

  1224. 

  1225.                             setParameterValueRT(k, value);

  1226.                         }

  1227. 

  1228.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param < MAX_MIDI_CONTROL)

  1229.                         {

  1230.                             fluid_synth_cc(fSynth, event.channel, ctrlEvent.param, int(ctrlEvent.value*127.0f));

  1231.                         }

  1232.                         break;

  1233.                     }

  1234. 

  1235.                     case kEngineControlEventTypeMidiBank:

  1236.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1237.                             nextBankIds[event.channel] = ctrlEvent.param;

  1238.                         break;

  1239. 

  1240.                     case kEngineControlEventTypeMidiProgram:

  1241.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1242.                         {

  1243.                             const uint32_t bankId(nextBankIds[event.channel]);

  1244.                             const uint32_t progId(ctrlEvent.param);

  1245. 

  1246.                             // TODO int32_t midiprog.find(bank, prog)

  1247.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1248.                             {

  1249.                                 if (pData->midiprog.data[k].bank == bankId && pData->midiprog.data[k].program == progId)

  1250.                                 {

  1251.                                     fluid_synth_program_select(fSynth, event.channel, fSynthId, bankId, progId);

  1252.                                     fCurMidiProgs[event.channel] = static_cast<int32_t>(k);

  1253. 

  1254.                                     if (event.channel == pData->ctrlChannel)

  1255.                                         pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, static_cast<int32_t>(k), 0, 0.0f);

  1256. 

  1257.                                     break;

  1258.                                 }

  1259.                             }

  1260.                         }

  1261.                         break;

  1262. 

  1263.                     case kEngineControlEventTypeAllSoundOff:

  1264.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1265.                             fluid_synth_all_sounds_off(fSynth, event.channel);

  1266.                         break;

  1267. 

  1268.                     case kEngineControlEventTypeAllNotesOff:

  1269.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1270.                         {

  1271. #ifndef BUILD_BRIDGE

  1272.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1273.                             {

  1274.                                 allNotesOffSent = true;

  1275.                                 sendMidiAllNotesOffToCallback();

  1276.                             }

  1277. #endif

  1278. 

  1279.                             fluid_synth_all_notes_off(fSynth, event.channel);

  1280.                         }

  1281.                         break;

  1282.                     }

  1283. 

  1284.                     break;

  1285.                 }

  1286. 

  1287.                 case kEngineEventTypeMidi: {

  1288.                     const EngineMidiEvent& midiEvent(event.midi);

  1289. 

  1290.                     if (midiEvent.size > EngineMidiEvent::kDataSize)

  1291.                         continue;

  1292. 

  1293.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1294. 

  1295.                     // Fix bad note-off

  1296.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1297.                         status = MIDI_STATUS_NOTE_OFF;

  1298. 

  1299.                     switch (status)

  1300.                     {

  1301.                     case MIDI_STATUS_NOTE_OFF: {

  1302.                         const uint8_t note = midiEvent.data[1];

  1303. 

  1304.                         fluid_synth_noteoff(fSynth, event.channel, note);

  1305. 

  1306.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, note, 0.0f);

  1307.                         break;

  1308.                     }

  1309. 

  1310.                     case MIDI_STATUS_NOTE_ON: {

  1311.                         const uint8_t note = midiEvent.data[1];

  1312.                         const uint8_t velo = midiEvent.data[2];

  1313. 

  1314.                         fluid_synth_noteon(fSynth, event.channel, note, velo);

  1315. 

  1316.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, note, velo);

  1317.                         break;

  1318.                     }

  1319. 

  1320.                     case MIDI_STATUS_POLYPHONIC_AFTERTOUCH:

  1321.                         if (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH)

  1322.                         {

  1323.                             //const uint8_t note     = midiEvent.data[1];

  1324.                             //const uint8_t pressure = midiEvent.data[2];

  1325. 

  1326.                             // not in fluidsynth API

  1327.                         }

  1328.                         break;

  1329. 

  1330.                     case MIDI_STATUS_CONTROL_CHANGE:

  1331.                         if (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1332.                         {

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

  1334.                             const uint8_t value   = midiEvent.data[2];

  1335. 

  1336.                             fluid_synth_cc(fSynth, event.channel, control, value);

  1337.                         }

  1338.                         break;

  1339. 

  1340.                     case MIDI_STATUS_CHANNEL_PRESSURE:

  1341.                         if (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE)

  1342.                         {

  1343.                             const uint8_t pressure = midiEvent.data[1];

  1344. 

  1345.                             fluid_synth_channel_pressure(fSynth, event.channel, pressure);;

  1346.                         }

  1347.                         break;

  1348. 

  1349.                     case MIDI_STATUS_PITCH_WHEEL_CONTROL:

  1350.                         if (pData->options & PLUGIN_OPTION_SEND_PITCHBEND)

  1351.                         {

  1352.                             const uint8_t lsb = midiEvent.data[1];

  1353.                             const uint8_t msb = midiEvent.data[2];

  1354.                             const int   value = ((msb << 7) | lsb);

  1355. 

  1356.                             fluid_synth_pitch_bend(fSynth, event.channel, value);

  1357.                         }

  1358.                         break;

  1359. 

  1360.                     default:

  1361.                         continue;

  1362.                         break;

  1363.                     } // switch (status)

  1364.                 } break;

  1365.                 } // switch (event.type)

  1366.             }

  1367. 

  1368.             pData->postRtEvents.trySplice();

  1369. 

  1370.             if (frames > timeOffset)

  1371.                 processSingle(audioOut, frames - timeOffset, timeOffset);

  1372. 

  1373.         } // End of Event Input and Processing

  1374. 

  1375. #ifndef BUILD_BRIDGE

  1376.         // --------------------------------------------------------------------------------------------------------

  1377.         // Control Output

  1378. 

  1379.         {

  1380.             uint32_t k = FluidSynthVoiceCount;

  1381.             fParamBuffers[k] = float(fluid_synth_get_active_voice_count(fSynth));

  1382.             pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1383. 

  1384.             if (pData->param.data[k].midiCC > 0)

  1385.             {

  1386.                 float value(pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]));

  1387.                 pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), value);

  1388.             }

  1389. 

  1390.         } // End of Control Output

  1391. #endif

  1392.     }

  1393. 

  1394.     bool processSingle(float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1395.     {

  1396.         CARLA_SAFE_ASSERT_RETURN(outBuffer != nullptr, false);

  1397.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1398. 

  1399.         // --------------------------------------------------------------------------------------------------------

  1400.         // Try lock, silence otherwise

  1401. 

  1402. #ifndef STOAT_TEST_BUILD

  1403.         if (pData->engine->isOffline())

  1404.         {

  1405.             pData->singleMutex.lock();

  1406.         }

  1407.         else

  1408. #endif

  1409.         if (! pData->singleMutex.tryLock())

  1410.         {

  1411.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1412.             {

  1413.                 for (uint32_t k=0; k < frames; ++k)

  1414.                     outBuffer[i][k+timeOffset] = 0.0f;

  1415.             }

  1416. 

  1417.             return false;

  1418.         }

  1419. 

  1420.         // --------------------------------------------------------------------------------------------------------

  1421.         // Fill plugin buffers and Run plugin

  1422. 

  1423.         if (kUse16Outs)

  1424.         {

  1425.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1426.                 carla_zeroFloats(fAudio16Buffers[i], frames);

  1427. 

  1428.             // FIXME use '32' or '16' instead of outs

  1429.             fluid_synth_process(fSynth, static_cast<int>(frames),

  1430.                                 0, nullptr,

  1431.                                 static_cast<int>(pData->audioOut.count), fAudio16Buffers);

  1432.         }

  1433.         else

  1434.         {

  1435.             fluid_synth_write_float(fSynth, static_cast<int>(frames),

  1436.                                     outBuffer[0] + timeOffset, 0, 1,

  1437.                                     outBuffer[1] + timeOffset, 0, 1);

  1438.         }

  1439. 

  1440. #ifndef BUILD_BRIDGE

  1441.         // --------------------------------------------------------------------------------------------------------

  1442.         // Post-processing (volume and balance)

  1443. 

  1444.         {

  1445.             // note - balance not possible with kUse16Outs, so we can safely skip fAudioOutBuffers

  1446.             const bool doVolume  = (pData->hints & PLUGIN_CAN_VOLUME) != 0 && carla_isNotEqual(pData->postProc.volume, 1.0f);

  1447.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_isEqual(pData->postProc.balanceLeft, -1.0f) && carla_isEqual(pData->postProc.balanceRight, 1.0f));

  1448. 

  1449.             float oldBufLeft[doBalance ? frames : 1];

  1450. 

  1451.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1452.             {

  1453.                 // Balance

  1454.                 if (doBalance)

  1455.                 {

  1456.                     if (i % 2 == 0)

  1457.                         carla_copyFloats(oldBufLeft, outBuffer[i]+timeOffset, frames);

  1458. 

  1459.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1460.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1461. 

  1462.                     for (uint32_t k=0; k < frames; ++k)

  1463.                     {

  1464.                         if (i % 2 == 0)

  1465.                         {

  1466.                             // left

  1467.                             outBuffer[i][k+timeOffset]  = oldBufLeft[k]                * (1.0f - balRangeL);

  1468.                             outBuffer[i][k+timeOffset] += outBuffer[i+1][k+timeOffset] * (1.0f - balRangeR);

  1469.                         }

  1470.                         else

  1471.                         {

  1472.                             // right

  1473.                             outBuffer[i][k+timeOffset]  = outBuffer[i][k+timeOffset] * balRangeR;

  1474.                             outBuffer[i][k+timeOffset] += oldBufLeft[k]              * balRangeL;

  1475.                         }

  1476.                     }

  1477.                 }

  1478. 

  1479.                 // Volume

  1480.                 if (kUse16Outs)

  1481.                 {

  1482.                     for (uint32_t k=0; k < frames; ++k)

  1483.                         outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k] * pData->postProc.volume;

  1484.                 }

  1485.                 else if (doVolume)

  1486.                 {

  1487.                     for (uint32_t k=0; k < frames; ++k)

  1488.                         outBuffer[i][k+timeOffset] *= pData->postProc.volume;

  1489.                 }

  1490.             }

  1491. 

  1492.         } // End of Post-processing

  1493. #else

  1494.         if (kUse16Outs)

  1495.         {

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

  1497.             {

  1498.                 for (uint32_t k=0; k < frames; ++k)

  1499.                     outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k];

  1500.             }

  1501.         }

  1502. #endif

  1503. 

  1504.         // --------------------------------------------------------------------------------------------------------

  1505. 

  1506.         pData->singleMutex.unlock();

  1507.         return true;

  1508.     }

  1509. 

  1510.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1511.     {

  1512.         if (! kUse16Outs)

  1513.             return;

  1514. 

  1515.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1516.         {

  1517.             if (fAudio16Buffers[i] != nullptr)

  1518.                 delete[] fAudio16Buffers[i];

  1519.             fAudio16Buffers[i] = new float[newBufferSize];

  1520.         }

  1521.     }

  1522. 

  1523.     void sampleRateChanged(const double newSampleRate) override

  1524.     {

  1525.         CARLA_SAFE_ASSERT_RETURN(fSettings != nullptr,);

  1526.         fluid_settings_setnum(fSettings, "synth.sample-rate", newSampleRate);

  1527. 

  1528.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

  1529.         fluid_synth_set_sample_rate(fSynth, float(newSampleRate));

  1530.     }

  1531. 

  1532.     // -------------------------------------------------------------------

  1533.     // Plugin buffers

  1534. 

  1535.     void clearBuffers() noexcept override

  1536.     {

  1537.         carla_debug("CarlaPluginFluidSynth::clearBuffers() - start");

  1538. 

  1539.         if (fAudio16Buffers != nullptr)

  1540.         {

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

  1542.             {

  1543.                 if (fAudio16Buffers[i] != nullptr)

  1544.                 {

  1545.                     delete[] fAudio16Buffers[i];

  1546.                     fAudio16Buffers[i] = nullptr;

  1547.                 }

  1548.             }

  1549. 

  1550.             delete[] fAudio16Buffers;

  1551.             fAudio16Buffers = nullptr;

  1552.         }

  1553. 

  1554.         CarlaPlugin::clearBuffers();

  1555. 

  1556.         carla_debug("CarlaPluginFluidSynth::clearBuffers() - end");

  1557.     }

  1558. 

  1559.     // -------------------------------------------------------------------

  1560. 

  1561.     const void* getExtraStuff() const noexcept override

  1562.     {

  1563.         static const char xtrue[]  = "true";

  1564.         static const char xfalse[] = "false";

  1565.         return kUse16Outs ? xtrue : xfalse;

  1566.     }

  1567. 

  1568.     // -------------------------------------------------------------------

  1569. 

  1570.     bool init(const char* const filename, const char* const name, const char* const label, const uint options)

  1571.     {

  1572.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  1573. 

  1574.         // ---------------------------------------------------------------

  1575.         // first checks

  1576. 

  1577.         if (pData->client != nullptr)

  1578.         {

  1579.             pData->engine->setLastError("Plugin client is already registered");

  1580.             return false;

  1581.         }

  1582. 

  1583.         if (fSynth == nullptr)

  1584.         {

  1585.             pData->engine->setLastError("null synth");

  1586.             return false;

  1587.         }

  1588. 

  1589.         if (filename == nullptr || filename[0] == '\0')

  1590.         {

  1591.             pData->engine->setLastError("null filename");

  1592.             return false;

  1593.         }

  1594. 

  1595.         if (label == nullptr || label[0] == '\0')

  1596.         {

  1597.             pData->engine->setLastError("null label");

  1598.             return false;

  1599.         }

  1600. 

  1601.         // ---------------------------------------------------------------

  1602.         // open soundfont

  1603. 

  1604.         const int synthId(fluid_synth_sfload(fSynth, filename, 0));

  1605. 

  1606.         if (synthId < 0)

  1607.         {

  1608.             pData->engine->setLastError("Failed to load SoundFont file");

  1609.             return false;

  1610.         }

  1611. 

  1612.         fSynthId = static_cast<uint>(synthId);

  1613. 

  1614.         // ---------------------------------------------------------------

  1615.         // get info

  1616. 

  1617.         CarlaString label2(label);

  1618. 

  1619.         if (kUse16Outs && ! label2.endsWith(" (16 outs)"))

  1620.             label2 += " (16 outs)";

  1621. 

  1622.         fLabel          = label2.dup();

  1623.         pData->filename = carla_strdup(filename);

  1624. 

  1625.         if (name != nullptr && name[0] != '\0')

  1626.             pData->name = pData->engine->getUniquePluginName(name);

  1627.         else

  1628.             pData->name = pData->engine->getUniquePluginName(label);

  1629. 

  1630.         // ---------------------------------------------------------------

  1631.         // register client

  1632. 

  1633.         pData->client = pData->engine->addClient(this);

  1634. 

  1635.         if (pData->client == nullptr || ! pData->client->isOk())

  1636.         {

  1637.             pData->engine->setLastError("Failed to register plugin client");

  1638.             return false;

  1639.         }

  1640. 

  1641.         // ---------------------------------------------------------------

  1642.         // set default options

  1643. 

  1644.         pData->options  = 0x0;

  1645.         pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1646.         pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1647.         pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  1648.         pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1649. 

  1650.         if (options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1651.             pData->options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  1652. 

  1653.         return true;

  1654.     }

  1655. 

  1656. private:

  1657.     enum FluidSynthParameters {

  1658.         FluidSynthReverbOnOff    = 0,

  1659.         FluidSynthReverbRoomSize = 1,

  1660.         FluidSynthReverbDamp     = 2,

  1661.         FluidSynthReverbLevel    = 3,

  1662.         FluidSynthReverbWidth    = 4,

  1663.         FluidSynthChorusOnOff    = 5,

  1664.         FluidSynthChorusNr       = 6,

  1665.         FluidSynthChorusLevel    = 7,

  1666.         FluidSynthChorusSpeedHz  = 8,

  1667.         FluidSynthChorusDepthMs  = 9,

  1668.         FluidSynthChorusType     = 10,

  1669.         FluidSynthPolyphony      = 11,

  1670.         FluidSynthInterpolation  = 12,

  1671.         FluidSynthVoiceCount     = 13,

  1672.         FluidSynthParametersMax  = 14

  1673.     };

  1674. 

  1675.     const bool kUse16Outs;

  1676. 

  1677.     fluid_settings_t* fSettings;

  1678.     fluid_synth_t*    fSynth;

  1679.     uint              fSynthId;

  1680. 

  1681.     float** fAudio16Buffers;

  1682.     float   fParamBuffers[FluidSynthParametersMax];

  1683. 

  1684.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  1685. 

  1686.     const char* fLabel;

  1687. 

  1688.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginFluidSynth)

  1689. };

  1690. 

  1691. CARLA_BACKEND_END_NAMESPACE

  1692. 

  1693. #endif // HAVE_FLUIDSYNTH

  1694. 

  1695. CARLA_BACKEND_START_NAMESPACE

  1696. 

  1697. // -------------------------------------------------------------------------------------------------------------------

  1698. 

  1699. CarlaPlugin* CarlaPlugin::newFluidSynth(const Initializer& init, const bool use16Outs)

  1700. {

  1701.     carla_debug("CarlaPlugin::newFluidSynth({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "}, %s)", init.engine, init.filename, init.name, init.label, init.uniqueId, bool2str(use16Outs));

  1702. 

  1703. #ifdef HAVE_FLUIDSYNTH

  1704.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && use16Outs)

  1705.     {

  1706.         init.engine->setLastError("Carla's rack mode can only work with Stereo modules,"

  1707.                                   "please choose the 2-channel only SoundFont version");

  1708.         return nullptr;

  1709.     }

  1710. 

  1711.     if (! fluid_is_soundfont(init.filename))

  1712.     {

  1713.         init.engine->setLastError("Requested file is not a valid SoundFont");

  1714.         return nullptr;

  1715.     }

  1716. 

  1717.     CarlaPluginFluidSynth* const plugin(new CarlaPluginFluidSynth(init.engine, init.id,  use16Outs));

  1718. 

  1719.     if (! plugin->init(init.filename, init.name, init.label, init.options))

  1720.     {

  1721.         delete plugin;

  1722.         return nullptr;

  1723.     }

  1724. 

  1725.     return plugin;

  1726. #else

  1727.     init.engine->setLastError("fluidsynth support not available");

  1728.     return nullptr;

  1729. 

  1730.     // unused

  1731.     (void)use16Outs;

  1732. #endif

  1733. }

  1734. 

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

  1736. 

  1737. CARLA_BACKEND_END_NAMESPACE