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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.             break;

  333.         case FluidSynthInterpolation:

  334.             switch (scalePointId)

  335.             {

  336.             case 0:

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

  338.                 return;

  339.             case 1:

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

  341.                 return;

  342.             case 2:

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

  344.                 return;

  345.             case 3:

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

  347.                 return;

  348.             }

  349.             break;

  350.         }

  351. 

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

  353.     }

  354. 

  355.     // -------------------------------------------------------------------

  356.     // Set data (state)

  357. 

  358.     void prepareForSave() override

  359.     {

  360.         char strBuf[STR_MAX+1];

  361.         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],

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

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

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

  365. 

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

  367.     }

  368. 

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

  370.     // Set data (internal stuff)

  371. 

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

  373.     {

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

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

  376. 

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

  378.     }

  379. 

  380.     // -------------------------------------------------------------------

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

  382. 

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

  384.     {

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

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

  387. 

  388.         float fixedValue;

  389. 

  390.         {

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

  392.             fixedValue = setParameterValueInFluidSynth(parameterId, value);

  393. 

  394.         }

  395. 

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

  397.     }

  398. 

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

  400.     {

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

  402. 

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

  404.     }

  405. 

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

  407.     {

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

  409. 

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

  411.         fParamBuffers[parameterId] = fixedValue;

  412. 

  413.         switch (parameterId)

  414.         {

  415.         case FluidSynthReverbOnOff:

  416.             try {

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

  418.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_reverb_on")

  419.             break;

  420. 

  421.         case FluidSynthReverbRoomSize:

  422.         case FluidSynthReverbDamp:

  423.         case FluidSynthReverbLevel:

  424.         case FluidSynthReverbWidth:

  425.             try {

  426.                 fluid_synth_set_reverb(fSynth,

  427.                                        fParamBuffers[FluidSynthReverbRoomSize],

  428.                                        fParamBuffers[FluidSynthReverbDamp],

  429.                                        fParamBuffers[FluidSynthReverbWidth],

  430.                                        fParamBuffers[FluidSynthReverbLevel]);

  431.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_reverb")

  432.             break;

  433. 

  434.         case FluidSynthChorusOnOff:

  435.             try {

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

  437.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_chorus_on")

  438.             break;

  439. 

  440.         case FluidSynthChorusNr:

  441.         case FluidSynthChorusLevel:

  442.         case FluidSynthChorusSpeedHz:

  443.         case FluidSynthChorusDepthMs:

  444.         case FluidSynthChorusType:

  445.             try {

  446.                 fluid_synth_set_chorus(fSynth,

  447.                                        (int)fParamBuffers[FluidSynthChorusNr],

  448.                                        fParamBuffers[FluidSynthChorusLevel],

  449.                                        fParamBuffers[FluidSynthChorusSpeedHz],

  450.                                        fParamBuffers[FluidSynthChorusDepthMs],

  451.                                        (int)fParamBuffers[FluidSynthChorusType]);

  452.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_chorus")

  453.             break;

  454. 

  455.         case FluidSynthPolyphony:

  456.             try {

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

  458.             } CARLA_SAFE_EXCEPTION("fluid_synth_set_polyphony")

  459.             break;

  460. 

  461.         case FluidSynthInterpolation:

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

  463.             {

  464.                 try {

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

  466.                 } CARLA_SAFE_EXCEPTION_BREAK("fluid_synth_set_interp_method")

  467.             }

  468.             break;

  469. 

  470.         default:

  471.             break;

  472.         }

  473. 

  474.         return fixedValue;

  475.     }

  476. 

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

  478.     {

  479.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

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

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

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

  484. 

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

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

  487. 

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

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

  490. 

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

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

  493. 

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

  495. 

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

  497.         {

  498.             uint8_t channel = 0;

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

  500.             {

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

  502. 

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

  504.                 {

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

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

  507. 

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

  509.                     fCurMidiProgs[channel] = index;

  510. 

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

  512.                     {

  513.                         pData->midiprog.current = index;

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

  515.                     }

  516.                 }

  517. 

  518.                 ++channel;

  519.             }

  520.             CARLA_SAFE_ASSERT(channel == MAX_MIDI_CHANNELS);

  521.         }

  522. 

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

  524.     }

  525. 

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

  527.     {

  528.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

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

  531. 

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

  533.         {

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

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

  536. 

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

  538. 

  539.             try {

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

  541.             } CARLA_SAFE_EXCEPTION("fluid_synth_program_select")

  542. 

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

  544.         }

  545. 

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

  547.     }

  548. 

  549.     void setMidiProgramRT(const uint32_t uindex) noexcept override

  550.     {

  551.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

  553. 

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

  555.         {

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

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

  558. 

  559.             try {

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

  561.             } CARLA_SAFE_EXCEPTION("fluid_synth_program_select")

  562. 

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

  564.         }

  565. 

  566.         CarlaPlugin::setMidiProgramRT(uindex);

  567.     }

  568. 

  569.     // -------------------------------------------------------------------

  570.     // Set ui stuff

  571. 

  572.     // nothing

  573. 

  574.     // -------------------------------------------------------------------

  575.     // Plugin state

  576. 

  577.     void reload() override

  578.     {

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

  580.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

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

  582. 

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

  584. 

  585.         // Safely disable plugin for reload

  586.         const ScopedDisabler sd(this);

  587. 

  588.         if (pData->active)

  589.             deactivate();

  590. 

  591.         clearBuffers();

  592. 

  593.         uint32_t aOuts, params;

  594.         aOuts  = kUse16Outs ? 32 : 2;

  595.         params = FluidSynthParametersMax;

  596. 

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

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

  599. 

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

  601.         CarlaString portName;

  602. 

  603.         // ---------------------------------------

  604.         // Audio Outputs

  605. 

  606.         if (kUse16Outs)

  607.         {

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

  609.             {

  610.                 portName.clear();

  611. 

  612.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  613.                 {

  614.                     portName  = pData->name;

  615.                     portName += ":";

  616.                 }

  617. 

  618.                 portName += "out-";

  619. 

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

  621.                     portName += "0";

  622. 

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

  624. 

  625.                 if (i % 2 == 0)

  626.                     portName += "L";

  627.                 else

  628.                     portName += "R";

  629. 

  630.                 portName.truncate(portNameSize);

  631. 

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

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

  634.             }

  635. 

  636.             fAudio16Buffers = new float*[aOuts];

  637. 

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

  639.                 fAudio16Buffers[i] = nullptr;

  640.         }

  641.         else

  642.         {

  643.             // out-left

  644.             portName.clear();

  645. 

  646.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  647.             {

  648.                 portName  = pData->name;

  649.                 portName += ":";

  650.             }

  651. 

  652.             portName += "out-left";

  653.             portName.truncate(portNameSize);

  654. 

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

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

  657. 

  658.             // out-right

  659.             portName.clear();

  660. 

  661.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  662.             {

  663.                 portName  = pData->name;

  664.                 portName += ":";

  665.             }

  666. 

  667.             portName += "out-right";

  668.             portName.truncate(portNameSize);

  669. 

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

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

  672.         }

  673. 

  674.         // ---------------------------------------

  675.         // Event Input

  676. 

  677.         {

  678.             portName.clear();

  679. 

  680.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  681.             {

  682.                 portName  = pData->name;

  683.                 portName += ":";

  684.             }

  685. 

  686.             portName += "events-in";

  687.             portName.truncate(portNameSize);

  688. 

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

  690.         }

  691. 

  692.         // ---------------------------------------

  693.         // Event Output

  694. 

  695.         {

  696.             portName.clear();

  697. 

  698.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  699.             {

  700.                 portName  = pData->name;

  701.                 portName += ":";

  702.             }

  703. 

  704.             portName += "events-out";

  705.             portName.truncate(portNameSize);

  706. 

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

  708.         }

  709. 

  710.         // ---------------------------------------

  711.         // Parameters

  712. 

  713.         {

  714.             int j;

  715. 

  716.             // ----------------------

  717.             j = FluidSynthReverbOnOff;

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

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

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

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

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

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

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

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

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

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

  728. 

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

  730.             j = FluidSynthReverbRoomSize;

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

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

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

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

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

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

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

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

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

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

  741. 

  742.             // ----------------------

  743.             j = FluidSynthReverbDamp;

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

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

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

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

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

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

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

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

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

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

  754. 

  755.             // ----------------------

  756.             j = FluidSynthReverbLevel;

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

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

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

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

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

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

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

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

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

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

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

  768. 

  769.             // ----------------------

  770.             j = FluidSynthReverbWidth;

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

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

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

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

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

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

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

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

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

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

  781. 

  782.             // ----------------------

  783.             j = FluidSynthChorusOnOff;

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

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

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

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

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

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

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

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

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

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

  794. 

  795.             // ----------------------

  796.             j = FluidSynthChorusNr;

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

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

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

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

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

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

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

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

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

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

  807. 

  808.             // ----------------------

  809.             j = FluidSynthChorusLevel;

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

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

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

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

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

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

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

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

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

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

  820. 

  821.             // ----------------------

  822.             j = FluidSynthChorusSpeedHz;

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

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

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

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

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

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

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

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

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

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

  833. 

  834.             // ----------------------

  835.             j = FluidSynthChorusDepthMs;

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

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

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

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

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

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

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

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

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

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

  846. 

  847.             // ----------------------

  848.             j = FluidSynthChorusType;

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

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

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

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

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

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

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

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

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

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

  859. 

  860.             // ----------------------

  861.             j = FluidSynthPolyphony;

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

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

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

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

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

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

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

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

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

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

  872. 

  873.             // ----------------------

  874.             j = FluidSynthInterpolation;

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

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

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

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

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

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

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

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

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

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

  885. 

  886.             // ----------------------

  887.             j = FluidSynthVoiceCount;

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

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

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

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

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

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

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

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

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

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

  898. 

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

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

  901.         }

  902. 

  903.         // ---------------------------------------

  904. 

  905.         // plugin hints

  906.         pData->hints  = 0x0;

  907.         pData->hints |= PLUGIN_IS_SYNTH;

  908.         pData->hints |= PLUGIN_CAN_VOLUME;

  909.         pData->hints |= PLUGIN_USES_MULTI_PROGS;

  910. 

  911.         if (! kUse16Outs)

  912.             pData->hints |= PLUGIN_CAN_BALANCE;

  913. 

  914.         // extra plugin hints

  915.         pData->extraHints  = 0x0;

  916.         pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  917. 

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

  919.         reloadPrograms(true);

  920. 

  921.         if (pData->active)

  922.             activate();

  923. 

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

  925.     }

  926. 

  927.     void reloadPrograms(const bool doInit) override

  928.     {

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

  930. 

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

  932.         bool hasDrums = false;

  933.         uint32_t drumIndex, drumProg;

  934.         drumIndex = drumProg = 0;

  935. 

  936.         // Delete old programs

  937.         pData->midiprog.clear();

  938. 

  939.         // Query new programs

  940.         uint32_t count = 0;

  941. 

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

  943.         {

  944.             fluid_preset_t f_preset;

  945. 

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

  947.             f_sfont->iteration_start(f_sfont);

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

  949.                 ++count;

  950. 

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

  952.             CARLA_SAFE_ASSERT_RETURN(count > 0,);

  953. 

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

  955. 

  956.             // Update data

  957.             int tmp;

  958.             uint32_t i = 0;

  959.             f_sfont->iteration_start(f_sfont);

  960. 

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

  962.             {

  963.                 CARLA_SAFE_ASSERT_BREAK(i < count);

  964. 

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

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

  967. 

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

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

  970. 

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

  972. 

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

  974.                 {

  975.                     hasDrums  = true;

  976.                     drumIndex = i;

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

  978.                 }

  979. 

  980.                 ++i;

  981.             }

  982.         }

  983.         else

  984.         {

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

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

  987.             return;

  988.         }

  989. 

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

  991.         // Update OSC Names

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

  993.         {

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

  995. 

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

  997.                 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);

  998.         }

  999. #endif

  1000. 

  1001.         if (doInit)

  1002.         {

  1003.             fluid_synth_program_reset(fSynth);

  1004. 

  1005.             // select first program, or 128 for ch10

  1006.             for (int i=0; i < MAX_MIDI_CHANNELS && i != 9; ++i)

  1007.             {

  1008.                 fluid_synth_set_channel_type(fSynth, i, CHANNEL_TYPE_MELODIC);

  1009.                 fluid_synth_program_select(fSynth, i, fSynthId, pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1010. 

  1011.                 fCurMidiProgs[i] = 0;

  1012.             }

  1013. 

  1014.             if (hasDrums)

  1015.             {

  1016.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_DRUM);

  1017.                 fluid_synth_program_select(fSynth, 9, fSynthId, 128, drumProg);

  1018. 

  1019.                 fCurMidiProgs[9] = static_cast<int32_t>(drumIndex);

  1020.             }

  1021.             else

  1022.             {

  1023.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_MELODIC);

  1024.                 fluid_synth_program_select(fSynth, 9, fSynthId, pData->midiprog.data[0].bank, pData->midiprog.data[0].program);

  1025. 

  1026.                 fCurMidiProgs[9] = 0;

  1027.             }

  1028. 

  1029.             pData->midiprog.current = 0;

  1030.         }

  1031.         else

  1032.         {

  1033.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1034.         }

  1035.     }

  1036. 

  1037.     // -------------------------------------------------------------------

  1038.     // Plugin processing

  1039. 

  1040.     void process(const float** const, float** const audioOut, const float** const, float** const, const uint32_t frames) override

  1041.     {

  1042.         // --------------------------------------------------------------------------------------------------------

  1043.         // Check if active

  1044. 

  1045.         if (! pData->active)

  1046.         {

  1047.             // disable any output sound

  1048.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1049.                 carla_zeroFloats(audioOut[i], frames);

  1050.             return;

  1051.         }

  1052. 

  1053.         // --------------------------------------------------------------------------------------------------------

  1054.         // Check if needs reset

  1055. 

  1056.         if (pData->needsReset)

  1057.         {

  1058.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1059.             {

  1060.                 for (int i=0; i < MAX_MIDI_CHANNELS; ++i)

  1061.                 {

  1062.                     fluid_synth_all_notes_off(fSynth, i);

  1063.                     fluid_synth_all_sounds_off(fSynth, i);

  1064.                 }

  1065.             }

  1066.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1067.             {

  1068.                 for (int i=0; i < MAX_MIDI_NOTE; ++i)

  1069.                     fluid_synth_noteoff(fSynth, pData->ctrlChannel, i);

  1070.             }

  1071. 

  1072.             pData->needsReset = false;

  1073.         }

  1074. 

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

  1076.         // Event Input and Processing

  1077. 

  1078.         {

  1079.             // ----------------------------------------------------------------------------------------------------

  1080.             // MIDI Input (External)

  1081. 

  1082.             if (pData->extNotes.mutex.tryLock())

  1083.             {

  1084.                 for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin2(); it.valid(); it.next())

  1085.                 {

  1086.                     const ExternalMidiNote& note(it.getValue(kExternalMidiNoteFallback));

  1087.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1088. 

  1089.                     if (note.velo > 0)

  1090.                         fluid_synth_noteon(fSynth, note.channel, note.note, note.velo);

  1091.                     else

  1092.                         fluid_synth_noteoff(fSynth,note.channel, note.note);

  1093.                 }

  1094. 

  1095.                 pData->extNotes.data.clear();

  1096.                 pData->extNotes.mutex.unlock();

  1097. 

  1098.             } // End of MIDI Input (External)

  1099. 

  1100.             // ----------------------------------------------------------------------------------------------------

  1101.             // Event Input (System)

  1102. 

  1103. #ifndef BUILD_BRIDGE

  1104.             bool allNotesOffSent = false;

  1105. #endif

  1106.             uint32_t timeOffset = 0;

  1107. 

  1108.             uint32_t nextBankIds[MAX_MIDI_CHANNELS] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 };

  1109. 

  1110.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1111.                 nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1112. 

  1113.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1114.             {

  1115.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1116. 

  1117.                 uint32_t eventTime = event.time;

  1118.                 CARLA_SAFE_ASSERT_UINT2_CONTINUE(eventTime < frames, eventTime, frames);

  1119. 

  1120.                 if (eventTime < timeOffset)

  1121.                 {

  1122.                     carla_stderr2("Timing error, eventTime:%u < timeOffset:%u for '%s'",

  1123.                                   eventTime, timeOffset, pData->name);

  1124.                     eventTime = timeOffset;

  1125.                 }

  1126.                 else if (eventTime > timeOffset)

  1127.                 {

  1128.                     if (processSingle(audioOut, eventTime - timeOffset, timeOffset))

  1129.                     {

  1130.                         timeOffset = eventTime;

  1131. 

  1132.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0 && pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1133.                             nextBankIds[pData->ctrlChannel] = pData->midiprog.data[pData->midiprog.current].bank;

  1134.                     }

  1135.                 }

  1136. 

  1137.                 // Control change

  1138.                 switch (event.type)

  1139.                 {

  1140.                 case kEngineEventTypeNull:

  1141.                     break;

  1142. 

  1143.                 case kEngineEventTypeControl:

  1144.                 {

  1145.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1146. 

  1147.                     switch (ctrlEvent.type)

  1148.                     {

  1149.                     case kEngineControlEventTypeNull:

  1150.                         break;

  1151. 

  1152.                     case kEngineControlEventTypeParameter:

  1153.                     {

  1154. #ifndef BUILD_BRIDGE

  1155.                         // Control backend stuff

  1156.                         if (event.channel == pData->ctrlChannel)

  1157.                         {

  1158.                             float value;

  1159. 

  1160.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1161.                             {

  1162.                                 value = ctrlEvent.value;

  1163.                                 setDryWetRT(value);

  1164.                             }

  1165. 

  1166.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1167.                             {

  1168.                                 value = ctrlEvent.value*127.0f/100.0f;

  1169.                                 setVolumeRT(value);

  1170.                             }

  1171. 

  1172.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1173.                             {

  1174.                                 float left, right;

  1175.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1176. 

  1177.                                 if (value < 0.0f)

  1178.                                 {

  1179.                                     left  = -1.0f;

  1180.                                     right = (value*2.0f)+1.0f;

  1181.                                 }

  1182.                                 else if (value > 0.0f)

  1183.                                 {

  1184.                                     left  = (value*2.0f)-1.0f;

  1185.                                     right = 1.0f;

  1186.                                 }

  1187.                                 else

  1188.                                 {

  1189.                                     left  = -1.0f;

  1190.                                     right = 1.0f;

  1191.                                 }

  1192. 

  1193.                                 setBalanceLeftRT(left);

  1194.                                 setBalanceRightRT(right);

  1195.                             }

  1196.                         }

  1197. #endif

  1198.                         // Control plugin parameters

  1199.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1200.                         {

  1201.                             if (pData->param.data[k].midiChannel != event.channel)

  1202.                                 continue;

  1203.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1204.                                 continue;

  1205.                             if (pData->param.data[k].hints != PARAMETER_INPUT)

  1206.                                 continue;

  1207.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1208.                                 continue;

  1209. 

  1210.                             float value;

  1211. 

  1212.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1213.                             {

  1214.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1215.                             }

  1216.                             else

  1217.                             {

  1218.                                 if (pData->param.data[k].hints & PARAMETER_IS_LOGARITHMIC)

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

  1220.                                 else

  1221.                                     value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1222. 

  1223.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1224.                                     value = std::rint(value);

  1225.                             }

  1226. 

  1227.                             setParameterValueRT(k, value);

  1228.                         }

  1229. 

  1230.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param < MAX_MIDI_CONTROL)

  1231.                         {

  1232.                             fluid_synth_cc(fSynth, event.channel, ctrlEvent.param, int(ctrlEvent.value*127.0f));

  1233.                         }

  1234.                         break;

  1235.                     }

  1236. 

  1237.                     case kEngineControlEventTypeMidiBank:

  1238.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1239.                             nextBankIds[event.channel] = ctrlEvent.param;

  1240.                         break;

  1241. 

  1242.                     case kEngineControlEventTypeMidiProgram:

  1243.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1244.                         {

  1245.                             const uint32_t bankId(nextBankIds[event.channel]);

  1246.                             const uint32_t progId(ctrlEvent.param);

  1247. 

  1248.                             // TODO int32_t midiprog.find(bank, prog)

  1249.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1250.                             {

  1251.                                 if (pData->midiprog.data[k].bank == bankId && pData->midiprog.data[k].program == progId)

  1252.                                 {

  1253.                                     fluid_synth_program_select(fSynth, event.channel, fSynthId, bankId, progId);

  1254.                                     fCurMidiProgs[event.channel] = static_cast<int32_t>(k);

  1255. 

  1256.                                     if (event.channel == pData->ctrlChannel)

  1257.                                         pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, static_cast<int32_t>(k), 0, 0.0f);

  1258. 

  1259.                                     break;

  1260.                                 }

  1261.                             }

  1262.                         }

  1263.                         break;

  1264. 

  1265.                     case kEngineControlEventTypeAllSoundOff:

  1266.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1267.                             fluid_synth_all_sounds_off(fSynth, event.channel);

  1268.                         break;

  1269. 

  1270.                     case kEngineControlEventTypeAllNotesOff:

  1271.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1272.                         {

  1273. #ifndef BUILD_BRIDGE

  1274.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1275.                             {

  1276.                                 allNotesOffSent = true;

  1277.                                 sendMidiAllNotesOffToCallback();

  1278.                             }

  1279. #endif

  1280. 

  1281.                             fluid_synth_all_notes_off(fSynth, event.channel);

  1282.                         }

  1283.                         break;

  1284.                     }

  1285. 

  1286.                     break;

  1287.                 }

  1288. 

  1289.                 case kEngineEventTypeMidi: {

  1290.                     const EngineMidiEvent& midiEvent(event.midi);

  1291. 

  1292.                     if (midiEvent.size > EngineMidiEvent::kDataSize)

  1293.                         continue;

  1294. 

  1295.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1296. 

  1297.                     // Fix bad note-off

  1298.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1299.                         status = MIDI_STATUS_NOTE_OFF;

  1300. 

  1301.                     switch (status)

  1302.                     {

  1303.                     case MIDI_STATUS_NOTE_OFF: {

  1304.                         const uint8_t note = midiEvent.data[1];

  1305. 

  1306.                         fluid_synth_noteoff(fSynth, event.channel, note);

  1307. 

  1308.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, note, 0.0f);

  1309.                         break;

  1310.                     }

  1311. 

  1312.                     case MIDI_STATUS_NOTE_ON: {

  1313.                         const uint8_t note = midiEvent.data[1];

  1314.                         const uint8_t velo = midiEvent.data[2];

  1315. 

  1316.                         fluid_synth_noteon(fSynth, event.channel, note, velo);

  1317. 

  1318.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, note, velo);

  1319.                         break;

  1320.                     }

  1321. 

  1322.                     case MIDI_STATUS_POLYPHONIC_AFTERTOUCH:

  1323.                         if (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH)

  1324.                         {

  1325.                             //const uint8_t note     = midiEvent.data[1];

  1326.                             //const uint8_t pressure = midiEvent.data[2];

  1327. 

  1328.                             // not in fluidsynth API

  1329.                         }

  1330.                         break;

  1331. 

  1332.                     case MIDI_STATUS_CONTROL_CHANGE:

  1333.                         if (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1334.                         {

  1335.                             const uint8_t control = midiEvent.data[1];

  1336.                             const uint8_t value   = midiEvent.data[2];

  1337. 

  1338.                             fluid_synth_cc(fSynth, event.channel, control, value);

  1339.                         }

  1340.                         break;

  1341. 

  1342.                     case MIDI_STATUS_CHANNEL_PRESSURE:

  1343.                         if (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE)

  1344.                         {

  1345.                             const uint8_t pressure = midiEvent.data[1];

  1346. 

  1347.                             fluid_synth_channel_pressure(fSynth, event.channel, pressure);;

  1348.                         }

  1349.                         break;

  1350. 

  1351.                     case MIDI_STATUS_PITCH_WHEEL_CONTROL:

  1352.                         if (pData->options & PLUGIN_OPTION_SEND_PITCHBEND)

  1353.                         {

  1354.                             const uint8_t lsb = midiEvent.data[1];

  1355.                             const uint8_t msb = midiEvent.data[2];

  1356.                             const int   value = ((msb << 7) | lsb);

  1357. 

  1358.                             fluid_synth_pitch_bend(fSynth, event.channel, value);

  1359.                         }

  1360.                         break;

  1361. 

  1362.                     default:

  1363.                         continue;

  1364.                         break;

  1365.                     } // switch (status)

  1366.                 } break;

  1367.                 } // switch (event.type)

  1368.             }

  1369. 

  1370.             pData->postRtEvents.trySplice();

  1371. 

  1372.             if (frames > timeOffset)

  1373.                 processSingle(audioOut, frames - timeOffset, timeOffset);

  1374. 

  1375.         } // End of Event Input and Processing

  1376. 

  1377. #ifndef BUILD_BRIDGE

  1378.         // --------------------------------------------------------------------------------------------------------

  1379.         // Control Output

  1380. 

  1381.         {

  1382.             uint32_t k = FluidSynthVoiceCount;

  1383.             fParamBuffers[k] = float(fluid_synth_get_active_voice_count(fSynth));

  1384.             pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1385. 

  1386.             if (pData->param.data[k].midiCC > 0)

  1387.             {

  1388.                 float value(pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]));

  1389.                 pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), value);

  1390.             }

  1391. 

  1392.         } // End of Control Output

  1393. #endif

  1394.     }

  1395. 

  1396.     bool processSingle(float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1397.     {

  1398.         CARLA_SAFE_ASSERT_RETURN(outBuffer != nullptr, false);

  1399.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1400. 

  1401.         // --------------------------------------------------------------------------------------------------------

  1402.         // Try lock, silence otherwise

  1403. 

  1404. #ifndef STOAT_TEST_BUILD

  1405.         if (pData->engine->isOffline())

  1406.         {

  1407.             pData->singleMutex.lock();

  1408.         }

  1409.         else

  1410. #endif

  1411.         if (! pData->singleMutex.tryLock())

  1412.         {

  1413.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1414.             {

  1415.                 for (uint32_t k=0; k < frames; ++k)

  1416.                     outBuffer[i][k+timeOffset] = 0.0f;

  1417.             }

  1418. 

  1419.             return false;

  1420.         }

  1421. 

  1422.         // --------------------------------------------------------------------------------------------------------

  1423.         // Fill plugin buffers and Run plugin

  1424. 

  1425.         if (kUse16Outs)

  1426.         {

  1427.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1428.                 carla_zeroFloats(fAudio16Buffers[i], frames);

  1429. 

  1430.             // FIXME use '32' or '16' instead of outs

  1431.             fluid_synth_process(fSynth, static_cast<int>(frames),

  1432.                                 0, nullptr,

  1433.                                 static_cast<int>(pData->audioOut.count), fAudio16Buffers);

  1434.         }

  1435.         else

  1436.         {

  1437.             fluid_synth_write_float(fSynth, static_cast<int>(frames),

  1438.                                     outBuffer[0] + timeOffset, 0, 1,

  1439.                                     outBuffer[1] + timeOffset, 0, 1);

  1440.         }

  1441. 

  1442. #ifndef BUILD_BRIDGE

  1443.         // --------------------------------------------------------------------------------------------------------

  1444.         // Post-processing (volume and balance)

  1445. 

  1446.         {

  1447.             // note - balance not possible with kUse16Outs, so we can safely skip fAudioOutBuffers

  1448.             const bool doVolume  = (pData->hints & PLUGIN_CAN_VOLUME) != 0 && carla_isNotEqual(pData->postProc.volume, 1.0f);

  1449.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_isEqual(pData->postProc.balanceLeft, -1.0f) && carla_isEqual(pData->postProc.balanceRight, 1.0f));

  1450. 

  1451.             float oldBufLeft[doBalance ? frames : 1];

  1452. 

  1453.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1454.             {

  1455.                 // Balance

  1456.                 if (doBalance)

  1457.                 {

  1458.                     if (i % 2 == 0)

  1459.                         carla_copyFloats(oldBufLeft, outBuffer[i]+timeOffset, frames);

  1460. 

  1461.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1462.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1463. 

  1464.                     for (uint32_t k=0; k < frames; ++k)

  1465.                     {

  1466.                         if (i % 2 == 0)

  1467.                         {

  1468.                             // left

  1469.                             outBuffer[i][k+timeOffset]  = oldBufLeft[k]                * (1.0f - balRangeL);

  1470.                             outBuffer[i][k+timeOffset] += outBuffer[i+1][k+timeOffset] * (1.0f - balRangeR);

  1471.                         }

  1472.                         else

  1473.                         {

  1474.                             // right

  1475.                             outBuffer[i][k+timeOffset]  = outBuffer[i][k+timeOffset] * balRangeR;

  1476.                             outBuffer[i][k+timeOffset] += oldBufLeft[k]              * balRangeL;

  1477.                         }

  1478.                     }

  1479.                 }

  1480. 

  1481.                 // Volume

  1482.                 if (kUse16Outs)

  1483.                 {

  1484.                     for (uint32_t k=0; k < frames; ++k)

  1485.                         outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k] * pData->postProc.volume;

  1486.                 }

  1487.                 else if (doVolume)

  1488.                 {

  1489.                     for (uint32_t k=0; k < frames; ++k)

  1490.                         outBuffer[i][k+timeOffset] *= pData->postProc.volume;

  1491.                 }

  1492.             }

  1493. 

  1494.         } // End of Post-processing

  1495. #else

  1496.         if (kUse16Outs)

  1497.         {

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

  1499.             {

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

  1501.                     outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k];

  1502.             }

  1503.         }

  1504. #endif

  1505. 

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

  1507. 

  1508.         pData->singleMutex.unlock();

  1509.         return true;

  1510.     }

  1511. 

  1512.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1513.     {

  1514.         if (! kUse16Outs)

  1515.             return;

  1516. 

  1517.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1518.         {

  1519.             if (fAudio16Buffers[i] != nullptr)

  1520.                 delete[] fAudio16Buffers[i];

  1521.             fAudio16Buffers[i] = new float[newBufferSize];

  1522.         }

  1523.     }

  1524. 

  1525.     void sampleRateChanged(const double newSampleRate) override

  1526.     {

  1527.         CARLA_SAFE_ASSERT_RETURN(fSettings != nullptr,);

  1528.         fluid_settings_setnum(fSettings, "synth.sample-rate", newSampleRate);

  1529. 

  1530.         CARLA_SAFE_ASSERT_RETURN(fSynth != nullptr,);

  1531.         fluid_synth_set_sample_rate(fSynth, float(newSampleRate));

  1532.     }

  1533. 

  1534.     // -------------------------------------------------------------------

  1535.     // Plugin buffers

  1536. 

  1537.     void clearBuffers() noexcept override

  1538.     {

  1539.         carla_debug("CarlaPluginFluidSynth::clearBuffers() - start");

  1540. 

  1541.         if (fAudio16Buffers != nullptr)

  1542.         {

  1543.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1544.             {

  1545.                 if (fAudio16Buffers[i] != nullptr)

  1546.                 {

  1547.                     delete[] fAudio16Buffers[i];

  1548.                     fAudio16Buffers[i] = nullptr;

  1549.                 }

  1550.             }

  1551. 

  1552.             delete[] fAudio16Buffers;

  1553.             fAudio16Buffers = nullptr;

  1554.         }

  1555. 

  1556.         CarlaPlugin::clearBuffers();

  1557. 

  1558.         carla_debug("CarlaPluginFluidSynth::clearBuffers() - end");

  1559.     }

  1560. 

  1561.     // -------------------------------------------------------------------

  1562. 

  1563.     const void* getExtraStuff() const noexcept override

  1564.     {

  1565.         static const char xtrue[]  = "true";

  1566.         static const char xfalse[] = "false";

  1567.         return kUse16Outs ? xtrue : xfalse;

  1568.     }

  1569. 

  1570.     // -------------------------------------------------------------------

  1571. 

  1572.     bool init(const char* const filename, const char* const name, const char* const label, const uint options)

  1573.     {

  1574.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  1575. 

  1576.         // ---------------------------------------------------------------

  1577.         // first checks

  1578. 

  1579.         if (pData->client != nullptr)

  1580.         {

  1581.             pData->engine->setLastError("Plugin client is already registered");

  1582.             return false;

  1583.         }

  1584. 

  1585.         if (fSynth == nullptr)

  1586.         {

  1587.             pData->engine->setLastError("null synth");

  1588.             return false;

  1589.         }

  1590. 

  1591.         if (filename == nullptr || filename[0] == '\0')

  1592.         {

  1593.             pData->engine->setLastError("null filename");

  1594.             return false;

  1595.         }

  1596. 

  1597.         if (label == nullptr || label[0] == '\0')

  1598.         {

  1599.             pData->engine->setLastError("null label");

  1600.             return false;

  1601.         }

  1602. 

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

  1604.         // open soundfont

  1605. 

  1606.         const int synthId(fluid_synth_sfload(fSynth, filename, 0));

  1607. 

  1608.         if (synthId < 0)

  1609.         {

  1610.             pData->engine->setLastError("Failed to load SoundFont file");

  1611.             return false;

  1612.         }

  1613. 

  1614.         fSynthId = static_cast<uint>(synthId);

  1615. 

  1616.         // ---------------------------------------------------------------

  1617.         // get info

  1618. 

  1619.         CarlaString label2(label);

  1620. 

  1621.         if (kUse16Outs && ! label2.endsWith(" (16 outs)"))

  1622.             label2 += " (16 outs)";

  1623. 

  1624.         fLabel          = label2.dup();

  1625.         pData->filename = carla_strdup(filename);

  1626. 

  1627.         if (name != nullptr && name[0] != '\0')

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

  1629.         else

  1630.             pData->name = pData->engine->getUniquePluginName(label);

  1631. 

  1632.         // ---------------------------------------------------------------

  1633.         // register client

  1634. 

  1635.         pData->client = pData->engine->addClient(this);

  1636. 

  1637.         if (pData->client == nullptr || ! pData->client->isOk())

  1638.         {

  1639.             pData->engine->setLastError("Failed to register plugin client");

  1640.             return false;

  1641.         }

  1642. 

  1643.         // ---------------------------------------------------------------

  1644.         // set default options

  1645. 

  1646.         pData->options  = 0x0;

  1647.         pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1648.         pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1649.         pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  1650.         pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1651. 

  1652.         if (options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1653.             pData->options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  1654. 

  1655.         return true;

  1656.     }

  1657. 

  1658. private:

  1659.     enum FluidSynthParameters {

  1660.         FluidSynthReverbOnOff    = 0,

  1661.         FluidSynthReverbRoomSize = 1,

  1662.         FluidSynthReverbDamp     = 2,

  1663.         FluidSynthReverbLevel    = 3,

  1664.         FluidSynthReverbWidth    = 4,

  1665.         FluidSynthChorusOnOff    = 5,

  1666.         FluidSynthChorusNr       = 6,

  1667.         FluidSynthChorusLevel    = 7,

  1668.         FluidSynthChorusSpeedHz  = 8,

  1669.         FluidSynthChorusDepthMs  = 9,

  1670.         FluidSynthChorusType     = 10,

  1671.         FluidSynthPolyphony      = 11,

  1672.         FluidSynthInterpolation  = 12,

  1673.         FluidSynthVoiceCount     = 13,

  1674.         FluidSynthParametersMax  = 14

  1675.     };

  1676. 

  1677.     const bool kUse16Outs;

  1678. 

  1679.     fluid_settings_t* fSettings;

  1680.     fluid_synth_t*    fSynth;

  1681.     uint              fSynthId;

  1682. 

  1683.     float** fAudio16Buffers;

  1684.     float   fParamBuffers[FluidSynthParametersMax];

  1685. 

  1686.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  1687. 

  1688.     const char* fLabel;

  1689. 

  1690.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginFluidSynth)

  1691. };

  1692. 

  1693. CARLA_BACKEND_END_NAMESPACE

  1694. 

  1695. #endif // HAVE_FLUIDSYNTH

  1696. 

  1697. CARLA_BACKEND_START_NAMESPACE

  1698. 

  1699. // -------------------------------------------------------------------------------------------------------------------

  1700. 

  1701. CarlaPlugin* CarlaPlugin::newFluidSynth(const Initializer& init, const bool use16Outs)

  1702. {

  1703.     carla_debug("CarlaPlugin::newFluidSynth({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "}, %s)", init.engine, init.filename, init.name, init.label, init.uniqueId, bool2str(use16Outs));

  1704. 

  1705. #ifdef HAVE_FLUIDSYNTH

  1706.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && use16Outs)

  1707.     {

  1708.         init.engine->setLastError("Carla's rack mode can only work with Stereo modules,"

  1709.                                   "please choose the 2-channel only SoundFont version");

  1710.         return nullptr;

  1711.     }

  1712. 

  1713.     if (! fluid_is_soundfont(init.filename))

  1714.     {

  1715.         init.engine->setLastError("Requested file is not a valid SoundFont");

  1716.         return nullptr;

  1717.     }

  1718. 

  1719.     CarlaPluginFluidSynth* const plugin(new CarlaPluginFluidSynth(init.engine, init.id,  use16Outs));

  1720. 

  1721.     if (! plugin->init(init.filename, init.name, init.label, init.options))

  1722.     {

  1723.         delete plugin;

  1724.         return nullptr;

  1725.     }

  1726. 

  1727.     return plugin;

  1728. #else

  1729.     init.engine->setLastError("fluidsynth support not available");

  1730.     return nullptr;

  1731. 

  1732.     // unused

  1733.     (void)use16Outs;

  1734. #endif

  1735. }

  1736. 

  1737. // -------------------------------------------------------------------------------------------------------------------

  1738. 

  1739. CARLA_BACKEND_END_NAMESPACE