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Carla/source/backend/plugin/FluidSynthPlugin.cpp

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  1. /*

  2.  * Carla FluidSynth Plugin

  3.  * Copyright (C) 2011-2013 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 GPL.txt file

  16.  */

  17. 

  18. #include "CarlaPluginInternal.hpp"

  19. 

  20. #ifdef WANT_FLUIDSYNTH

  21. 

  22. #include <fluidsynth.h>

  23. 

  24. #define FLUIDSYNTH_VERSION_NEW_API (FLUIDSYNTH_VERSION_MAJOR >= 1 && FLUIDSYNTH_VERSION_MINOR >= 1 && FLUIDSYNTH_VERSION_MICRO >= 4)

  25. 

  26. CARLA_BACKEND_START_NAMESPACE

  27. 

  28. #if 0

  29. }

  30. #endif

  31. 

  32. #define FLUID_DEFAULT_POLYPHONY 64

  33. 

  34. class FluidSynthPlugin : public CarlaPlugin

  35. {

  36. public:

  37.     FluidSynthPlugin(CarlaEngine* const engine, const unsigned int id, const bool use16Outs)

  38.         : CarlaPlugin(engine, id),

  39.           kUses16Outs(use16Outs),

  40.           fSettings(nullptr),

  41.           fSynth(nullptr),

  42.           fSynthId(-1),

  43.           fAudio16Buffers(nullptr),

  44.           fParamBuffers{0.0f}

  45.     {

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

  47. 

  48.         // create settings

  49.         fSettings = new_fluid_settings();

  50.         CARLA_ASSERT(fSettings != nullptr);

  51. 

  52.         // define settings

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

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

  55.         fluid_settings_setnum(fSettings, "synth.sample-rate", kData->engine->getSampleRate());

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

  57. 

  58.         // create synth

  59.         fSynth = new_fluid_synth(fSettings);

  60.         CARLA_ASSERT(fSynth != nullptr);

  61. 

  62. #ifdef FLUIDSYNTH_VERSION_NEW_API

  63.         fluid_synth_set_sample_rate(fSynth, kData->engine->getSampleRate());

  64. #endif

  65. 

  66.         // set default values

  67.         fluid_synth_set_reverb_on(fSynth, 0);

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

  69. 

  70.         fluid_synth_set_chorus_on(fSynth, 0);

  71.         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);

  72. 

  73.         fluid_synth_set_polyphony(fSynth, FLUID_DEFAULT_POLYPHONY);

  74. 

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

  76.             fluid_synth_set_interp_method(fSynth, i, FLUID_INTERP_DEFAULT);

  77.     }

  78. 

  79.     ~FluidSynthPlugin() override

  80.     {

  81.         carla_debug("FluidSynthPlugin::~FluidSynthPlugin()");

  82. 

  83.         kData->singleMutex.lock();

  84.         kData->masterMutex.lock();

  85. 

  86.         delete_fluid_synth(fSynth);

  87.         delete_fluid_settings(fSettings);

  88. 

  89.         clearBuffers();

  90.     }

  91. 

  92.     // -------------------------------------------------------------------

  93.     // Information (base)

  94. 

  95.     PluginType type() const override

  96.     {

  97.         return PLUGIN_SF2;

  98.     }

  99. 

  100.     PluginCategory category() override

  101.     {

  102.         return PLUGIN_CATEGORY_SYNTH;

  103.     }

  104. 

  105.     // -------------------------------------------------------------------

  106.     // Information (count)

  107. 

  108.     uint32_t parameterScalePointCount(const uint32_t parameterId) const override

  109.     {

  110.         CARLA_ASSERT(parameterId < kData->param.count);

  111. 

  112.         switch (parameterId)

  113.         {

  114.         case FluidSynthChorusType:

  115.             return 2;

  116.         case FluidSynthInterpolation:

  117.             return 4;

  118.         default:

  119.             return 0;

  120.         }

  121.     }

  122. 

  123.     // -------------------------------------------------------------------

  124.     // Information (per-plugin data)

  125. 

  126.     unsigned int availableOptions() override

  127.     {

  128.         unsigned int options = 0x0;

  129. 

  130.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  131.         options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  132.         options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  133.         options |= PLUGIN_OPTION_SEND_PITCHBEND;

  134.         options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  135. 

  136.         return options;

  137.     }

  138. 

  139.     float getParameterValue(const uint32_t parameterId) override

  140.     {

  141.         CARLA_ASSERT(parameterId < kData->param.count);

  142. 

  143.         return fParamBuffers[parameterId];

  144.     }

  145. 

  146.     float getParameterScalePointValue(const uint32_t parameterId, const uint32_t scalePointId) override

  147.     {

  148.         CARLA_ASSERT(parameterId < kData->param.count);

  149.         CARLA_ASSERT(scalePointId < parameterScalePointCount(parameterId));

  150. 

  151.         switch (parameterId)

  152.         {

  153.         case FluidSynthChorusType:

  154.             switch (scalePointId)

  155.             {

  156.             case 0:

  157.                 return FLUID_CHORUS_MOD_SINE;

  158.             case 1:

  159.                 return FLUID_CHORUS_MOD_TRIANGLE;

  160.             default:

  161.                 return FLUID_CHORUS_DEFAULT_TYPE;

  162.             }

  163.         case FluidSynthInterpolation:

  164.             switch (scalePointId)

  165.             {

  166.             case 0:

  167.                 return FLUID_INTERP_NONE;

  168.             case 1:

  169.                 return FLUID_INTERP_LINEAR;

  170.             case 2:

  171.                 return FLUID_INTERP_4THORDER;

  172.             case 3:

  173.                 return FLUID_INTERP_7THORDER;

  174.             default:

  175.                 return FLUID_INTERP_DEFAULT;

  176.             }

  177.         default:

  178.             return 0.0f;

  179.         }

  180.     }

  181. 

  182.     void getLabel(char* const strBuf) override

  183.     {

  184.         if (fLabel.isNotEmpty())

  185.             std::strncpy(strBuf, (const char*)fLabel, STR_MAX);

  186.         else

  187.             CarlaPlugin::getLabel(strBuf);

  188.     }

  189. 

  190.     void getMaker(char* const strBuf) override

  191.     {

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

  193.     }

  194. 

  195.     void getCopyright(char* const strBuf) override

  196.     {

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

  198.     }

  199. 

  200.     void getRealName(char* const strBuf) override

  201.     {

  202.         getLabel(strBuf);

  203.     }

  204. 

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

  206.     {

  207.         CARLA_ASSERT(parameterId < kData->param.count);

  208. 

  209.         switch (parameterId)

  210.         {

  211.         case FluidSynthReverbOnOff:

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

  213.             break;

  214.         case FluidSynthReverbRoomSize:

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

  216.             break;

  217.         case FluidSynthReverbDamp:

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

  219.             break;

  220.         case FluidSynthReverbLevel:

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

  222.             break;

  223.         case FluidSynthReverbWidth:

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

  225.             break;

  226.         case FluidSynthChorusOnOff:

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

  228.             break;

  229.         case FluidSynthChorusNr:

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

  231.             break;

  232.         case FluidSynthChorusLevel:

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

  234.             break;

  235.         case FluidSynthChorusSpeedHz:

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

  237.             break;

  238.         case FluidSynthChorusDepthMs:

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

  240.             break;

  241.         case FluidSynthChorusType:

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

  243.             break;

  244.         case FluidSynthPolyphony:

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

  246.             break;

  247.         case FluidSynthInterpolation:

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

  249.             break;

  250.         case FluidSynthVoiceCount:

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

  252.             break;

  253.         default:

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

  255.             break;

  256.         }

  257.     }

  258. 

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

  260.     {

  261.         CARLA_ASSERT(parameterId < kData->param.count);

  262. 

  263.         switch (parameterId)

  264.         {

  265.         case FluidSynthChorusSpeedHz:

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

  267.             break;

  268.         case FluidSynthChorusDepthMs:

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

  270.             break;

  271.         default:

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

  273.             break;

  274.         }

  275.     }

  276. 

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

  278.     {

  279.         CARLA_ASSERT(parameterId < kData->param.count);

  280.         CARLA_ASSERT(scalePointId < parameterScalePointCount(parameterId));

  281. 

  282.         switch (parameterId)

  283.         {

  284.         case FluidSynthChorusType:

  285.             switch (scalePointId)

  286.             {

  287.             case 0:

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

  289.                 return;

  290.             case 1:

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

  292.                 return;

  293.             }

  294.         case FluidSynthInterpolation:

  295.             switch (scalePointId)

  296.             {

  297.             case 0:

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

  299.                 return;

  300.             case 1:

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

  302.                 return;

  303.             case 2:

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

  305.                 return;

  306.             case 3:

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

  308.                 return;

  309.             }

  310.         }

  311. 

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

  313.     }

  314. 

  315.     // -------------------------------------------------------------------

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

  317. 

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

  319.     {

  320.         CARLA_ASSERT(parameterId < kData->param.count);

  321. 

  322.         const float fixedValue = kData->param.fixValue(parameterId, value);

  323.         fParamBuffers[parameterId] = fixedValue;

  324. 

  325.         {

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

  327. 

  328.             switch (parameterId)

  329.             {

  330.             case FluidSynthReverbOnOff:

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

  332.                 break;

  333. 

  334.             case FluidSynthReverbRoomSize:

  335.             case FluidSynthReverbDamp:

  336.             case FluidSynthReverbLevel:

  337.             case FluidSynthReverbWidth:

  338.                 fluid_synth_set_reverb(fSynth, fParamBuffers[FluidSynthReverbRoomSize], fParamBuffers[FluidSynthReverbDamp], fParamBuffers[FluidSynthReverbWidth], fParamBuffers[FluidSynthReverbLevel]);

  339.                 break;

  340. 

  341.             case FluidSynthChorusOnOff:

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

  343.                 break;

  344. 

  345.             case FluidSynthChorusNr:

  346.             case FluidSynthChorusLevel:

  347.             case FluidSynthChorusSpeedHz:

  348.             case FluidSynthChorusDepthMs:

  349.             case FluidSynthChorusType:

  350.                 fluid_synth_set_chorus(fSynth, fParamBuffers[FluidSynthChorusNr], fParamBuffers[FluidSynthChorusLevel], fParamBuffers[FluidSynthChorusSpeedHz], fParamBuffers[FluidSynthChorusDepthMs], fParamBuffers[FluidSynthChorusType]);

  351.                 break;

  352. 

  353.             case FluidSynthPolyphony:

  354.                 fluid_synth_set_polyphony(fSynth, value);

  355.                 break;

  356. 

  357.             case FluidSynthInterpolation:

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

  359.                     fluid_synth_set_interp_method(fSynth, i, value);

  360.                 break;

  361. 

  362.             default:

  363.                 break;

  364.             }

  365.         }

  366. 

  367.         CarlaPlugin::setParameterValue(parameterId, value, sendGui, sendOsc, sendCallback);

  368.     }

  369. 

  370.     void setMidiProgram(int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback) override

  371.     {

  372.         CARLA_ASSERT(fSynth != nullptr);

  373.         CARLA_ASSERT(index >= -1 && index < static_cast<int32_t>(kData->midiprog.count));

  374. 

  375.         if (index < -1)

  376.             index = -1;

  377.         else if (index > static_cast<int32_t>(kData->midiprog.count))

  378.             return;

  379. 

  380.         if (kData->ctrlChannel < 0 || kData->ctrlChannel >= 16)

  381.             return;

  382. 

  383.         if (index >= 0)

  384.         {

  385.             const uint32_t bank    = kData->midiprog.data[index].bank;

  386.             const uint32_t program = kData->midiprog.data[index].program;

  387. 

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

  389.             fluid_synth_program_select(fSynth, kData->ctrlChannel, fSynthId, bank, program);

  390.         }

  391. 

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

  393.     }

  394. 

  395.     // -------------------------------------------------------------------

  396.     // Plugin state

  397. 

  398.     void reload() override

  399.     {

  400.         carla_debug("FluidSynthPlugin::reload() - start");

  401.         CARLA_ASSERT(kData->engine != nullptr);

  402.         CARLA_ASSERT(fSynth != nullptr);

  403. 

  404.         if (kData->engine == nullptr)

  405.             return;

  406.         if (fSynth == nullptr)

  407.             return;

  408. 

  409.         const ProcessMode processMode(kData->engine->getProccessMode());

  410. 

  411.         // Safely disable plugin for reload

  412.         const ScopedDisabler sd(this);

  413. 

  414.         if (kData->active)

  415.             deactivate();

  416. 

  417.         clearBuffers();

  418. 

  419.         uint32_t aOuts, params, j;

  420.         aOuts  = kUses16Outs ? 32 : 2;

  421.         params = FluidSynthParametersMax;

  422. 

  423.         kData->audioOut.createNew(aOuts);

  424.         kData->param.createNew(params);

  425. 

  426.         const int   portNameSize = kData->engine->maxPortNameSize();

  427.         CarlaString portName;

  428. 

  429.         // ---------------------------------------

  430.         // Audio Outputs

  431. 

  432.         if (kUses16Outs)

  433.         {

  434.             for (j=0; j < 32; ++j)

  435.             {

  436.                 portName.clear();

  437. 

  438.                 if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  439.                 {

  440.                     portName  = fName;

  441.                     portName += ":";

  442.                 }

  443. 

  444.                 portName += "out-";

  445. 

  446.                 if ((j+2)/2 < 9)

  447.                     portName += "0";

  448. 

  449.                 portName += CarlaString((j+2)/2);

  450. 

  451.                 if (j % 2 == 0)

  452.                     portName += "L";

  453.                 else

  454.                     portName += "R";

  455. 

  456.                 portName.truncate(portNameSize);

  457. 

  458.                 kData->audioOut.ports[j].port   = (CarlaEngineAudioPort*)kData->client->addPort(kEnginePortTypeAudio, portName, false);

  459.                 kData->audioOut.ports[j].rindex = j;

  460.             }

  461. 

  462.             fAudio16Buffers = new float*[aOuts];

  463. 

  464.             for (j=0; j < aOuts; ++j)

  465.                 fAudio16Buffers[j] = nullptr;

  466.         }

  467.         else

  468.         {

  469.             // out-left

  470.             portName.clear();

  471. 

  472.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  473.             {

  474.                 portName  = fName;

  475.                 portName += ":";

  476.             }

  477. 

  478.             portName += "out-left";

  479.             portName.truncate(portNameSize);

  480. 

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

  482.             kData->audioOut.ports[0].rindex = 0;

  483. 

  484.             // out-right

  485.             portName.clear();

  486. 

  487.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  488.             {

  489.                 portName  = fName;

  490.                 portName += ":";

  491.             }

  492. 

  493.             portName += "out-right";

  494.             portName.truncate(portNameSize);

  495. 

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

  497.             kData->audioOut.ports[1].rindex = 1;

  498.         }

  499. 

  500.         // ---------------------------------------

  501.         // Event Input

  502. 

  503.         {

  504.             portName.clear();

  505. 

  506.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  507.             {

  508.                 portName  = fName;

  509.                 portName += ":";

  510.             }

  511. 

  512.             portName += "event-in";

  513.             portName.truncate(portNameSize);

  514. 

  515.             kData->event.portIn = (CarlaEngineEventPort*)kData->client->addPort(kEnginePortTypeEvent, portName, true);

  516.         }

  517. 

  518.         // ---------------------------------------

  519.         // Event Output

  520. 

  521.         {

  522.             portName.clear();

  523. 

  524.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  525.             {

  526.                 portName  = fName;

  527.                 portName += ":";

  528.             }

  529. 

  530.             portName += "event-out";

  531.             portName.truncate(portNameSize);

  532. 

  533.             kData->event.portOut = (CarlaEngineEventPort*)kData->client->addPort(kEnginePortTypeEvent, portName, false);

  534.         }

  535. 

  536.         // ----------------------

  537.         j = FluidSynthReverbOnOff;

  538.         kData->param.data[j].index  = j;

  539.         kData->param.data[j].rindex = j;

  540.         kData->param.data[j].type   = PARAMETER_INPUT;

  541.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_AUTOMABLE | PARAMETER_IS_BOOLEAN;

  542.         kData->param.data[j].midiChannel = 0;

  543.         kData->param.data[j].midiCC = -1;

  544.         kData->param.ranges[j].min = 0.0f;

  545.         kData->param.ranges[j].max = 1.0f;

  546.         kData->param.ranges[j].def = 0.0f; // off

  547.         kData->param.ranges[j].step = 1.0f;

  548.         kData->param.ranges[j].stepSmall = 1.0f;

  549.         kData->param.ranges[j].stepLarge = 1.0f;

  550.         fParamBuffers[j] = kData->param.ranges[j].def;

  551. 

  552.         // ----------------------

  553.         j = FluidSynthReverbRoomSize;

  554.         kData->param.data[j].index  = j;

  555.         kData->param.data[j].rindex = j;

  556.         kData->param.data[j].type   = PARAMETER_INPUT;

  557.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_AUTOMABLE;

  558.         kData->param.data[j].midiChannel = 0;

  559.         kData->param.data[j].midiCC = -1;

  560.         kData->param.ranges[j].min = 0.0f;

  561.         kData->param.ranges[j].max = 1.2f;

  562.         kData->param.ranges[j].def = FLUID_REVERB_DEFAULT_ROOMSIZE;

  563.         kData->param.ranges[j].step = 0.01f;

  564.         kData->param.ranges[j].stepSmall = 0.0001f;

  565.         kData->param.ranges[j].stepLarge = 0.1f;

  566.         fParamBuffers[j] = kData->param.ranges[j].def;

  567. 

  568.         // ----------------------

  569.         j = FluidSynthReverbDamp;

  570.         kData->param.data[j].index  = j;

  571.         kData->param.data[j].rindex = j;

  572.         kData->param.data[j].type   = PARAMETER_INPUT;

  573.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_AUTOMABLE;

  574.         kData->param.data[j].midiChannel = 0;

  575.         kData->param.data[j].midiCC = -1;

  576.         kData->param.ranges[j].min = 0.0f;

  577.         kData->param.ranges[j].max = 1.0f;

  578.         kData->param.ranges[j].def = FLUID_REVERB_DEFAULT_DAMP;

  579.         kData->param.ranges[j].step = 0.01f;

  580.         kData->param.ranges[j].stepSmall = 0.0001f;

  581.         kData->param.ranges[j].stepLarge = 0.1f;

  582.         fParamBuffers[j] = kData->param.ranges[j].def;

  583. 

  584.         // ----------------------

  585.         j = FluidSynthReverbLevel;

  586.         kData->param.data[j].index  = j;

  587.         kData->param.data[j].rindex = j;

  588.         kData->param.data[j].type   = PARAMETER_INPUT;

  589.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_AUTOMABLE;

  590.         kData->param.data[j].midiChannel = 0;

  591.         kData->param.data[j].midiCC = MIDI_CONTROL_REVERB_SEND_LEVEL;

  592.         kData->param.ranges[j].min = 0.0f;

  593.         kData->param.ranges[j].max = 1.0f;

  594.         kData->param.ranges[j].def = FLUID_REVERB_DEFAULT_LEVEL;

  595.         kData->param.ranges[j].step = 0.01f;

  596.         kData->param.ranges[j].stepSmall = 0.0001f;

  597.         kData->param.ranges[j].stepLarge = 0.1f;

  598.         fParamBuffers[j] = kData->param.ranges[j].def;

  599. 

  600.         // ----------------------

  601.         j = FluidSynthReverbWidth;

  602.         kData->param.data[j].index  = j;

  603.         kData->param.data[j].rindex = j;

  604.         kData->param.data[j].type   = PARAMETER_INPUT;

  605.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_AUTOMABLE;

  606.         kData->param.data[j].midiChannel = 0;

  607.         kData->param.data[j].midiCC = -1;

  608.         kData->param.ranges[j].min = 0.0f;

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

  610.         kData->param.ranges[j].def = FLUID_REVERB_DEFAULT_WIDTH;

  611.         kData->param.ranges[j].step = 0.01f;

  612.         kData->param.ranges[j].stepSmall = 0.0001f;

  613.         kData->param.ranges[j].stepLarge = 0.1f;

  614.         fParamBuffers[j] = kData->param.ranges[j].def;

  615. 

  616.         // ----------------------

  617.         j = FluidSynthChorusOnOff;

  618.         kData->param.data[j].index  = j;

  619.         kData->param.data[j].rindex = j;

  620.         kData->param.data[j].type   = PARAMETER_INPUT;

  621.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_BOOLEAN;

  622.         kData->param.data[j].midiChannel = 0;

  623.         kData->param.data[j].midiCC = -1;

  624.         kData->param.ranges[j].min = 0.0f;

  625.         kData->param.ranges[j].max = 1.0f;

  626.         kData->param.ranges[j].def = 0.0f; // off

  627.         kData->param.ranges[j].step = 1.0f;

  628.         kData->param.ranges[j].stepSmall = 1.0f;

  629.         kData->param.ranges[j].stepLarge = 1.0f;

  630.         fParamBuffers[j] = kData->param.ranges[j].def;

  631. 

  632.         // ----------------------

  633.         j = FluidSynthChorusNr;

  634.         kData->param.data[j].index  = j;

  635.         kData->param.data[j].rindex = j;

  636.         kData->param.data[j].type   = PARAMETER_INPUT;

  637.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_INTEGER;

  638.         kData->param.data[j].midiChannel = 0;

  639.         kData->param.data[j].midiCC = -1;

  640.         kData->param.ranges[j].min = 0.0f;

  641.         kData->param.ranges[j].max = 99.0f;

  642.         kData->param.ranges[j].def = FLUID_CHORUS_DEFAULT_N;

  643.         kData->param.ranges[j].step = 1.0f;

  644.         kData->param.ranges[j].stepSmall = 1.0f;

  645.         kData->param.ranges[j].stepLarge = 10.0f;

  646.         fParamBuffers[j] = kData->param.ranges[j].def;

  647. 

  648.         // ----------------------

  649.         j = FluidSynthChorusLevel;

  650.         kData->param.data[j].index  = j;

  651.         kData->param.data[j].rindex = j;

  652.         kData->param.data[j].type   = PARAMETER_INPUT;

  653.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED;

  654.         kData->param.data[j].midiChannel = 0;

  655.         kData->param.data[j].midiCC = 0; //MIDI_CONTROL_CHORUS_SEND_LEVEL;

  656.         kData->param.ranges[j].min = 0.0f;

  657.         kData->param.ranges[j].max = 10.0f;

  658.         kData->param.ranges[j].def = FLUID_CHORUS_DEFAULT_LEVEL;

  659.         kData->param.ranges[j].step = 0.01f;

  660.         kData->param.ranges[j].stepSmall = 0.0001f;

  661.         kData->param.ranges[j].stepLarge = 0.1f;

  662.         fParamBuffers[j] = kData->param.ranges[j].def;

  663. 

  664.         // ----------------------

  665.         j = FluidSynthChorusSpeedHz;

  666.         kData->param.data[j].index  = j;

  667.         kData->param.data[j].rindex = j;

  668.         kData->param.data[j].type   = PARAMETER_INPUT;

  669.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED;

  670.         kData->param.data[j].midiChannel = 0;

  671.         kData->param.data[j].midiCC = -1;

  672.         kData->param.ranges[j].min = 0.29f;

  673.         kData->param.ranges[j].max = 5.0f;

  674.         kData->param.ranges[j].def = FLUID_CHORUS_DEFAULT_SPEED;

  675.         kData->param.ranges[j].step = 0.01f;

  676.         kData->param.ranges[j].stepSmall = 0.0001f;

  677.         kData->param.ranges[j].stepLarge = 0.1f;

  678.         fParamBuffers[j] = kData->param.ranges[j].def;

  679. 

  680.         // ----------------------

  681.         j = FluidSynthChorusDepthMs;

  682.         kData->param.data[j].index  = j;

  683.         kData->param.data[j].rindex = j;

  684.         kData->param.data[j].type   = PARAMETER_INPUT;

  685.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED;

  686.         kData->param.data[j].midiChannel = 0;

  687.         kData->param.data[j].midiCC = -1;

  688.         kData->param.ranges[j].min = 0.0f;

  689.         kData->param.ranges[j].max = 2048000.0 / kData->engine->getSampleRate();

  690.         kData->param.ranges[j].def = FLUID_CHORUS_DEFAULT_DEPTH;

  691.         kData->param.ranges[j].step = 0.01f;

  692.         kData->param.ranges[j].stepSmall = 0.0001f;

  693.         kData->param.ranges[j].stepLarge = 0.1f;

  694.         fParamBuffers[j] = kData->param.ranges[j].def;

  695. 

  696.         // ----------------------

  697.         j = FluidSynthChorusType;

  698.         kData->param.data[j].index  = j;

  699.         kData->param.data[j].rindex = j;

  700.         kData->param.data[j].type   = PARAMETER_INPUT;

  701.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_INTEGER | PARAMETER_USES_SCALEPOINTS;

  702.         kData->param.data[j].midiChannel = 0;

  703.         kData->param.data[j].midiCC = -1;

  704.         kData->param.ranges[j].min = FLUID_CHORUS_MOD_SINE;

  705.         kData->param.ranges[j].max = FLUID_CHORUS_MOD_TRIANGLE;

  706.         kData->param.ranges[j].def = FLUID_CHORUS_DEFAULT_TYPE;

  707.         kData->param.ranges[j].step = 1.0f;

  708.         kData->param.ranges[j].stepSmall = 1.0f;

  709.         kData->param.ranges[j].stepLarge = 1.0f;

  710.         fParamBuffers[j] = kData->param.ranges[j].def;

  711. 

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

  713.         j = FluidSynthPolyphony;

  714.         kData->param.data[j].index  = j;

  715.         kData->param.data[j].rindex = j;

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

  717.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_INTEGER;

  718.         kData->param.data[j].midiChannel = 0;

  719.         kData->param.data[j].midiCC = -1;

  720.         kData->param.ranges[j].min = 1.0f;

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

  722.         kData->param.ranges[j].def = fluid_synth_get_polyphony(fSynth);

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

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

  725.         kData->param.ranges[j].stepLarge = 10.0f;

  726.         fParamBuffers[j] = kData->param.ranges[j].def;

  727. 

  728.         // ----------------------

  729.         j = FluidSynthInterpolation;

  730.         kData->param.data[j].index  = j;

  731.         kData->param.data[j].rindex = j;

  732.         kData->param.data[j].type   = PARAMETER_INPUT;

  733.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_INTEGER | PARAMETER_USES_SCALEPOINTS;

  734.         kData->param.data[j].midiChannel = 0;

  735.         kData->param.data[j].midiCC = -1;

  736.         kData->param.ranges[j].min = FLUID_INTERP_NONE;

  737.         kData->param.ranges[j].max = FLUID_INTERP_HIGHEST;

  738.         kData->param.ranges[j].def = FLUID_INTERP_DEFAULT;

  739.         kData->param.ranges[j].step = 1.0f;

  740.         kData->param.ranges[j].stepSmall = 1.0f;

  741.         kData->param.ranges[j].stepLarge = 1.0f;

  742.         fParamBuffers[j] = kData->param.ranges[j].def;

  743. 

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

  745.         j = FluidSynthVoiceCount;

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

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

  748.         kData->param.data[j].type   = PARAMETER_OUTPUT;

  749.         kData->param.data[j].hints  = PARAMETER_IS_ENABLED | PARAMETER_IS_AUTOMABLE | PARAMETER_IS_INTEGER;

  750.         kData->param.data[j].midiChannel = 0;

  751.         kData->param.data[j].midiCC = -1;

  752.         kData->param.ranges[j].min = 0.0f;

  753.         kData->param.ranges[j].max = 65535.0f;

  754.         kData->param.ranges[j].def = 0.0f;

  755.         kData->param.ranges[j].step = 1.0f;

  756.         kData->param.ranges[j].stepSmall = 1.0f;

  757.         kData->param.ranges[j].stepLarge = 1.0f;

  758.         fParamBuffers[j] = kData->param.ranges[j].def;

  759. 

  760.         // ---------------------------------------

  761. 

  762.         // plugin hints

  763.         fHints  = 0x0;

  764.         fHints |= PLUGIN_IS_RTSAFE;

  765.         fHints |= PLUGIN_IS_SYNTH;

  766.         fHints |= PLUGIN_CAN_VOLUME;

  767.         fHints |= PLUGIN_CAN_BALANCE;

  768. 

  769.         // extra plugin hints

  770.         kData->extraHints  = 0x0;

  771.         kData->extraHints |= PLUGIN_HINT_HAS_MIDI_IN;

  772.         kData->extraHints |= PLUGIN_HINT_CAN_RUN_RACK;

  773. 

  774.         bufferSizeChanged(kData->engine->getBufferSize());

  775.         reloadPrograms(true);

  776. 

  777.         if (kData->active)

  778.             activate();

  779. 

  780.         carla_debug("FluidSynthPlugin::reload() - end");

  781.     }

  782. 

  783.     void reloadPrograms(const bool init) override

  784.     {

  785.         carla_debug("FluidSynthPlugin::reloadPrograms(%s)", bool2str(init));

  786. 

  787.         // Delete old programs

  788.         kData->midiprog.clear();

  789. 

  790.         // Query new programs

  791.         uint32_t count = 0;

  792.         fluid_sfont_t* f_sfont;

  793.         fluid_preset_t f_preset;

  794.         bool hasDrums = false;

  795. 

  796.         f_sfont = fluid_synth_get_sfont_by_id(fSynth, fSynthId);

  797. 

  798.         // initial check to know how much midi-programs we have

  799.         f_sfont->iteration_start(f_sfont);

  800.         while (f_sfont->iteration_next(f_sfont, &f_preset))

  801.             count += 1;

  802. 

  803.         // soundfonts must always have at least 1 midi-program

  804.         CARLA_ASSERT(count > 0);

  805. 

  806.         if (count == 0)

  807.             return;

  808. 

  809.         kData->midiprog.createNew(count);

  810. 

  811.         // Update data

  812.         uint32_t i = 0;

  813.         f_sfont->iteration_start(f_sfont);

  814. 

  815.         while (f_sfont->iteration_next(f_sfont, &f_preset))

  816.         {

  817.             CARLA_ASSERT(i < kData->midiprog.count);

  818.             kData->midiprog.data[i].bank    = f_preset.get_banknum(&f_preset);

  819.             kData->midiprog.data[i].program = f_preset.get_num(&f_preset);

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

  821. 

  822.             if (kData->midiprog.data[i].bank == 128)

  823.                 hasDrums = true;

  824. 

  825.             ++i;

  826.         }

  827. 

  828.         //f_sfont->free(f_sfont);

  829. 

  830. #ifndef BUILD_BRIDGE

  831.         // Update OSC Names

  832.         if (kData->engine->isOscControlRegistered())

  833.         {

  834.             kData->engine->osc_send_control_set_midi_program_count(fId, count);

  835. 

  836.             for (i=0; i < count; ++i)

  837.                 kData->engine->osc_send_control_set_midi_program_data(fId, i, kData->midiprog.data[i].bank, kData->midiprog.data[i].program, kData->midiprog.data[i].name);

  838.         }

  839. #endif

  840. 

  841.         if (init)

  842.         {

  843.             fluid_synth_program_reset(fSynth);

  844. 

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

  846.             for (i=0; i < 16 && i != 9; ++i)

  847.             {

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

  849. #ifdef FLUIDSYNTH_VERSION_NEW_API

  850.                 fluid_synth_set_channel_type(fSynth, i, CHANNEL_TYPE_MELODIC);

  851. #endif

  852.             }

  853. 

  854.             if (hasDrums)

  855.             {

  856.                 fluid_synth_program_select(fSynth, 9, fSynthId, 128, 0);

  857. #ifdef FLUIDSYNTH_VERSION_NEW_API

  858.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_DRUM);

  859. #endif

  860.             }

  861.             else

  862.             {

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

  864. #ifdef FLUIDSYNTH_VERSION_NEW_API

  865.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_MELODIC);

  866. #endif

  867.             }

  868. 

  869.             setMidiProgram(0, false, false, false);

  870.         }

  871.         else

  872.         {

  873.             kData->engine->callback(CALLBACK_RELOAD_PROGRAMS, fId, 0, 0, 0.0f, nullptr);

  874.         }

  875.     }

  876. 

  877.     // -------------------------------------------------------------------

  878.     // Plugin processing

  879. 

  880.     void process(float** const, float** const outBuffer, const uint32_t frames) override

  881.     {

  882.         uint32_t i, k;

  883. 

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

  885.         // Check if active

  886. 

  887.         if (! kData->active)

  888.         {

  889.             // disable any output sound

  890.             for (i=0; i < kData->audioOut.count; ++i)

  891.                 carla_zeroFloat(outBuffer[i], frames);

  892. 

  893.             return;

  894.         }

  895. 

  896.         // --------------------------------------------------------------------------------------------------------

  897.         // Check if needs reset

  898. 

  899.         if (kData->needsReset)

  900.         {

  901.             // TODO

  902.             if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  903.             {

  904.                 for (int c=0; c < MAX_MIDI_CHANNELS; c++)

  905.                 {

  906. #ifdef FLUIDSYNTH_VERSION_NEW_API

  907.                     fluid_synth_all_notes_off(fSynth, c);

  908.                     fluid_synth_all_sounds_off(fSynth, c);

  909. #else

  910.                     fluid_synth_cc(f_synth, c, MIDI_CONTROL_ALL_SOUND_OFF, 0);

  911.                     fluid_synth_cc(f_synth, c, MIDI_CONTROL_ALL_NOTES_OFF, 0);

  912. #endif

  913.                 }

  914.             }

  915.             else

  916.             {

  917.             }

  918. 

  919.             kData->needsReset = false;

  920.         }

  921. 

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

  923.         // Event Input and Processing

  924. 

  925.         {

  926.             // ----------------------------------------------------------------------------------------------------

  927.             // MIDI Input (External)

  928. 

  929.             if (kData->extNotes.mutex.tryLock())

  930.             {

  931.                 while (! kData->extNotes.data.isEmpty())

  932.                 {

  933.                     const ExternalMidiNote& note(kData->extNotes.data.getFirst(true));

  934. 

  935.                     CARLA_ASSERT(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  936. 

  937.                     if (note.velo > 0)

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

  939.                     else

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

  941.                 }

  942. 

  943.                 kData->extNotes.mutex.unlock();

  944. 

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

  946. 

  947.             // ----------------------------------------------------------------------------------------------------

  948.             // Event Input (System)

  949. 

  950.             bool allNotesOffSent = false;

  951. 

  952.             uint32_t time, nEvents = kData->event.portIn->getEventCount();

  953.             uint32_t timeOffset = 0;

  954. 

  955.             uint32_t nextBankIds[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 };

  956. 

  957.             if (kData->midiprog.current >= 0 && kData->midiprog.count > 0 && kData->ctrlChannel >= 0 && kData->ctrlChannel < 16)

  958.                 nextBankIds[kData->ctrlChannel] = kData->midiprog.data[kData->midiprog.current].bank;

  959. 

  960.             for (i=0; i < nEvents; ++i)

  961.             {

  962.                 const EngineEvent& event = kData->event.portIn->getEvent(i);

  963. 

  964.                 time = event.time;

  965. 

  966.                 if (time >= frames)

  967.                     continue;

  968. 

  969.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  970. 

  971.                 if (time > timeOffset)

  972.                 {

  973.                     if (processSingle(outBuffer, time - timeOffset, timeOffset))

  974.                     {

  975.                         timeOffset = time;

  976. 

  977.                         if (kData->midiprog.current >= 0 && kData->midiprog.count > 0 && kData->ctrlChannel >= 0 && kData->ctrlChannel < 16)

  978.                             nextBankIds[kData->ctrlChannel] = kData->midiprog.data[kData->midiprog.current].bank;

  979.                     }

  980.                 }

  981. 

  982.                 // Control change

  983.                 switch (event.type)

  984.                 {

  985.                 case kEngineEventTypeNull:

  986.                     break;

  987. 

  988.                 case kEngineEventTypeControl:

  989.                 {

  990.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  991. 

  992.                     switch (ctrlEvent.type)

  993.                     {

  994.                     case kEngineControlEventTypeNull:

  995.                         break;

  996. 

  997.                     case kEngineControlEventTypeParameter:

  998.                     {

  999.                         // Control backend stuff

  1000.                         if (event.channel == kData->ctrlChannel)

  1001.                         {

  1002.                             float value;

  1003. 

  1004.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (fHints & PLUGIN_CAN_DRYWET) > 0)

  1005.                             {

  1006.                                 value = ctrlEvent.value;

  1007.                                 setDryWet(value, false, false);

  1008.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1009.                                 continue;

  1010.                             }

  1011. 

  1012.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (fHints & PLUGIN_CAN_VOLUME) > 0)

  1013.                             {

  1014.                                 value = ctrlEvent.value*127.0f/100.0f;

  1015.                                 setVolume(value, false, false);

  1016.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1017.                                 continue;

  1018.                             }

  1019. 

  1020.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (fHints & PLUGIN_CAN_BALANCE) > 0)

  1021.                             {

  1022.                                 float left, right;

  1023.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1024. 

  1025.                                 if (value < 0.0f)

  1026.                                 {

  1027.                                     left  = -1.0f;

  1028.                                     right = (value*2.0f)+1.0f;

  1029.                                 }

  1030.                                 else if (value > 0.0f)

  1031.                                 {

  1032.                                     left  = (value*2.0f)-1.0f;

  1033.                                     right = 1.0f;

  1034.                                 }

  1035.                                 else

  1036.                                 {

  1037.                                     left  = -1.0f;

  1038.                                     right = 1.0f;

  1039.                                 }

  1040. 

  1041.                                 setBalanceLeft(left, false, false);

  1042.                                 setBalanceRight(right, false, false);

  1043.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1044.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1045.                                 continue;

  1046.                             }

  1047.                         }

  1048. 

  1049.                         // Control plugin parameters

  1050.                         for (k=0; k < kData->param.count; ++k)

  1051.                         {

  1052.                             if (kData->param.data[k].midiChannel != event.channel)

  1053.                                 continue;

  1054.                             if (kData->param.data[k].midiCC != ctrlEvent.param)

  1055.                                 continue;

  1056.                             if (kData->param.data[k].type != PARAMETER_INPUT)

  1057.                                 continue;

  1058.                             if ((kData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1059.                                 continue;

  1060. 

  1061.                             float value;

  1062. 

  1063.                             if (kData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1064.                             {

  1065.                                 value = (ctrlEvent.value < 0.5f) ? kData->param.ranges[k].min : kData->param.ranges[k].max;

  1066.                             }

  1067.                             else

  1068.                             {

  1069.                                 value = kData->param.ranges[i].unnormalizeValue(ctrlEvent.value);

  1070. 

  1071.                                 if (kData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1072.                                     value = std::rint(value);

  1073.                             }

  1074. 

  1075.                             setParameterValue(k, value, false, false, false);

  1076.                             postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1077.                         }

  1078. 

  1079.                         break;

  1080.                     }

  1081. 

  1082.                     case kEngineControlEventTypeMidiBank:

  1083.                         if (event.channel < 16 && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1084.                             nextBankIds[event.channel] = ctrlEvent.param;

  1085.                         break;

  1086. 

  1087.                     case kEngineControlEventTypeMidiProgram:

  1088.                         if (event.channel < 16 && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1089.                         {

  1090.                             const uint32_t bankId = nextBankIds[event.channel];

  1091.                             const uint32_t progId = ctrlEvent.param;

  1092. 

  1093.                             for (k=0; k < kData->midiprog.count; ++k)

  1094.                             {

  1095.                                 if (kData->midiprog.data[k].bank == bankId && kData->midiprog.data[k].program == progId)

  1096.                                 {

  1097.                                     if (event.channel == kData->ctrlChannel)

  1098.                                     {

  1099.                                         setMidiProgram(k, false, false, false);

  1100.                                         postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0f);

  1101.                                     }

  1102.                                     else

  1103.                                         fluid_synth_program_select(fSynth, event.channel, fSynthId, bankId, progId);

  1104. 

  1105.                                     break;

  1106.                                 }

  1107.                             }

  1108.                         }

  1109.                         break;

  1110. 

  1111.                     case kEngineControlEventTypeAllSoundOff:

  1112.                         if (event.channel == kData->ctrlChannel)

  1113.                         {

  1114.                             if (! allNotesOffSent)

  1115.                             {

  1116.                                 sendMidiAllNotesOff();

  1117.                                 allNotesOffSent = true;

  1118.                             }

  1119. 

  1120.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 0.0f);

  1121.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 1.0f);

  1122. 

  1123.                             if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1124.                             {

  1125. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1126.                                 fluid_synth_all_sounds_off(fSynth, event.channel);

  1127. #else

  1128.                                 fluid_synth_cc(f_synth, event.channel, MIDI_CONTROL_ALL_SOUND_OFF, 0);

  1129. #endif

  1130.                             }

  1131.                         }

  1132.                         break;

  1133. 

  1134.                     case kEngineControlEventTypeAllNotesOff:

  1135.                         if (event.channel == kData->ctrlChannel)

  1136.                         {

  1137.                             if (! allNotesOffSent)

  1138.                             {

  1139.                                 sendMidiAllNotesOff();

  1140.                                 allNotesOffSent = true;

  1141.                             }

  1142. 

  1143.                             if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1144.                             {

  1145. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1146.                                 fluid_synth_all_notes_off(fSynth, event.channel);

  1147. #else

  1148.                                 fluid_synth_cc(f_synth, event.channel, MIDI_CONTROL_ALL_NOTES_OFF, 0);

  1149. #endif

  1150.                             }

  1151.                         }

  1152.                         break;

  1153.                     }

  1154. 

  1155.                     break;

  1156.                 }

  1157. 

  1158.                 case kEngineEventTypeMidi:

  1159.                 {

  1160.                     const EngineMidiEvent& midiEvent = event.midi;

  1161. 

  1162.                     uint8_t status  = MIDI_GET_STATUS_FROM_DATA(midiEvent.data);

  1163.                     uint8_t channel = event.channel;

  1164. 

  1165.                     // Fix bad note-off

  1166.                     if (MIDI_IS_STATUS_NOTE_ON(status) && midiEvent.data[2] == 0)

  1167.                         status -= 0x10;

  1168. 

  1169.                     if (MIDI_IS_STATUS_NOTE_OFF(status))

  1170.                     {

  1171.                         const uint8_t note = midiEvent.data[1];

  1172. 

  1173.                         fluid_synth_noteoff(fSynth, channel, note);

  1174. 

  1175.                         postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0f);

  1176.                     }

  1177.                     else if (MIDI_IS_STATUS_NOTE_ON(status))

  1178.                     {

  1179.                         const uint8_t note = midiEvent.data[1];

  1180.                         const uint8_t velo = midiEvent.data[2];

  1181. 

  1182.                         fluid_synth_noteon(fSynth, channel, note, velo);

  1183. 

  1184.                         postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1185.                     }

  1186.                     else if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) != 0)

  1187.                     {

  1188.                         //const uint8_t note     = midiEvent.data[1];

  1189.                         //const uint8_t pressure = midiEvent.data[2];

  1190. 

  1191.                         // TODO, not in fluidsynth API

  1192.                     }

  1193.                     else if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (fOptions & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0)

  1194.                     {

  1195.                         const uint8_t control = midiEvent.data[1];

  1196.                         const uint8_t value   = midiEvent.data[2];

  1197. 

  1198.                         fluid_synth_cc(fSynth, channel, control, value);

  1199.                     }

  1200.                     else if (MIDI_IS_STATUS_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) != 0)

  1201.                     {

  1202.                         const uint8_t pressure = midiEvent.data[1];

  1203. 

  1204.                         fluid_synth_channel_pressure(fSynth, channel, pressure);;

  1205.                     }

  1206.                     else if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (fOptions & PLUGIN_OPTION_SEND_PITCHBEND) != 0)

  1207.                     {

  1208.                         const uint8_t lsb = midiEvent.data[1];

  1209.                         const uint8_t msb = midiEvent.data[2];

  1210. 

  1211.                         fluid_synth_pitch_bend(fSynth, channel, (msb << 7) | lsb);

  1212.                     }

  1213. 

  1214.                     break;

  1215.                 }

  1216.                 }

  1217.             }

  1218. 

  1219.             kData->postRtEvents.trySplice();

  1220. 

  1221.             if (frames > timeOffset)

  1222.                 processSingle(outBuffer, frames - timeOffset, timeOffset);

  1223. 

  1224.         } // End of Event Input and Processing

  1225. 

  1226.         CARLA_PROCESS_CONTINUE_CHECK;

  1227. 

  1228.         // --------------------------------------------------------------------------------------------------------

  1229.         // Control Output

  1230. 

  1231.         {

  1232.             k = FluidSynthVoiceCount;

  1233.             fParamBuffers[k] = fluid_synth_get_active_voice_count(fSynth);

  1234.             kData->param.ranges[k].fixValue(fParamBuffers[k]);

  1235. 

  1236.             if (kData->param.data[k].midiCC > 0)

  1237.             {

  1238.                 double value = kData->param.ranges[k].normalizeValue(fParamBuffers[k]);

  1239.                 kData->event.portOut->writeControlEvent(0, kData->param.data[k].midiChannel, kEngineControlEventTypeParameter, kData->param.data[k].midiCC, value);

  1240.             }

  1241. 

  1242.         } // End of Control Output

  1243.     }

  1244. 

  1245.     bool processSingle(float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1246.     {

  1247.         CARLA_ASSERT(outBuffer != nullptr);

  1248.         CARLA_ASSERT(frames > 0);

  1249. 

  1250.         if (outBuffer == nullptr)

  1251.             return false;

  1252.         if (frames == 0)

  1253.             return false;

  1254. 

  1255.         uint32_t i, k;

  1256. 

  1257.         // --------------------------------------------------------------------------------------------------------

  1258.         // Try lock, silence otherwise

  1259. 

  1260.         if (kData->engine->isOffline())

  1261.         {

  1262.             kData->singleMutex.lock();

  1263.         }

  1264.         else if (! kData->singleMutex.tryLock())

  1265.         {

  1266.             for (i=0; i < kData->audioOut.count; ++i)

  1267.             {

  1268.                 for (k=0; k < frames; ++k)

  1269.                     outBuffer[i][k+timeOffset] = 0.0f;

  1270.             }

  1271. 

  1272.             return false;

  1273.         }

  1274. 

  1275.         // --------------------------------------------------------------------------------------------------------

  1276.         // Fill plugin buffers and Run plugin

  1277. 

  1278.         if (kUses16Outs)

  1279.         {

  1280.             for (i=0; i < kData->audioOut.count; ++i)

  1281.                 carla_zeroFloat(fAudio16Buffers[i], frames);

  1282. 

  1283.             fluid_synth_process(fSynth, frames, 0, nullptr, kData->audioOut.count, fAudio16Buffers);

  1284.         }

  1285.         else

  1286.             fluid_synth_write_float(fSynth, frames, outBuffer[0] + timeOffset, 0, 1, outBuffer[1] + timeOffset, 0, 1);

  1287. 

  1288.         // --------------------------------------------------------------------------------------------------------

  1289.         // Post-processing (volume and balance)

  1290. 

  1291.         {

  1292.             // note - balance not possible with kUses16Outs, so we can safely skip fAudioOutBuffers

  1293.             const bool doVolume  = (fHints & PLUGIN_CAN_VOLUME) > 0 && kData->postProc.volume != 1.0f;

  1294.             const bool doBalance = (fHints & PLUGIN_CAN_BALANCE) > 0 && (kData->postProc.balanceLeft != -1.0f || kData->postProc.balanceRight != 1.0f);

  1295. 

  1296.             float oldBufLeft[doBalance ? frames : 1];

  1297. 

  1298.             for (i=0; i < kData->audioOut.count; ++i)

  1299.             {

  1300.                 // Balance

  1301.                 if (doBalance)

  1302.                 {

  1303.                     if (i % 2 == 0)

  1304.                         carla_copyFloat(oldBufLeft, outBuffer[i]+timeOffset, frames);

  1305. 

  1306.                     float balRangeL = (kData->postProc.balanceLeft  + 1.0f)/2.0f;

  1307.                     float balRangeR = (kData->postProc.balanceRight + 1.0f)/2.0f;

  1308. 

  1309.                     for (k=0; k < frames; ++k)

  1310.                     {

  1311.                         if (i % 2 == 0)

  1312.                         {

  1313.                             // left

  1314.                             outBuffer[i][k+timeOffset]  = oldBufLeft[k]                * (1.0f - balRangeL);

  1315.                             outBuffer[i][k+timeOffset] += outBuffer[i+1][k+timeOffset] * (1.0f - balRangeR);

  1316.                         }

  1317.                         else

  1318.                         {

  1319.                             // right

  1320.                             outBuffer[i][k+timeOffset]  = outBuffer[i][k+timeOffset] * balRangeR;

  1321.                             outBuffer[i][k+timeOffset] += oldBufLeft[k]              * balRangeL;

  1322.                         }

  1323.                     }

  1324.                 }

  1325. 

  1326.                 // Volume

  1327.                 if (kUses16Outs)

  1328.                 {

  1329.                     for (k=0; k < frames; ++k)

  1330.                         outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k] * kData->postProc.volume;

  1331.                 }

  1332.                 else if (doVolume)

  1333.                 {

  1334.                     for (k=0; k < frames; ++k)

  1335.                         outBuffer[i][k+timeOffset] *= kData->postProc.volume;

  1336.                 }

  1337.             }

  1338. 

  1339.         } // End of Post-processing

  1340. 

  1341.         // --------------------------------------------------------------------------------------------------------

  1342. 

  1343.         kData->singleMutex.unlock();

  1344.         return true;

  1345.     }

  1346. 

  1347.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1348.     {

  1349.         if (! kUses16Outs)

  1350.             return;

  1351. 

  1352.         for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1353.         {

  1354.             if (fAudio16Buffers[i] != nullptr)

  1355.                 delete[] fAudio16Buffers[i];

  1356.             fAudio16Buffers[i] = new float[newBufferSize];

  1357.         }

  1358.     }

  1359. 

  1360.     // -------------------------------------------------------------------

  1361.     // Plugin buffers

  1362. 

  1363.     void clearBuffers() override

  1364.     {

  1365.         carla_debug("FluidSynthPlugin::clearBuffers() - start");

  1366. 

  1367.         if (fAudio16Buffers != nullptr)

  1368.         {

  1369.             for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1370.             {

  1371.                 if (fAudio16Buffers[i] != nullptr)

  1372.                 {

  1373.                     delete[] fAudio16Buffers[i];

  1374.                     fAudio16Buffers[i] = nullptr;

  1375.                 }

  1376.             }

  1377. 

  1378.             delete[] fAudio16Buffers;

  1379.             fAudio16Buffers = nullptr;

  1380.         }

  1381. 

  1382.         CarlaPlugin::clearBuffers();

  1383. 

  1384.         carla_debug("FluidSynthPlugin::clearBuffers() - end");

  1385.     }

  1386. 

  1387.     // -------------------------------------------------------------------

  1388. 

  1389.     const void* getExtraStuff() override

  1390.     {

  1391.         return kUses16Outs ? (const void*)0x1 : nullptr;

  1392.     }

  1393. 

  1394.     bool init(const char* const filename, const char* const name, const char* const label)

  1395.     {

  1396.         CARLA_ASSERT(fSynth != nullptr);

  1397.         CARLA_ASSERT(filename != nullptr);

  1398.         CARLA_ASSERT(label != nullptr);

  1399. 

  1400.         // ---------------------------------------------------------------

  1401.         // first checks

  1402. 

  1403.         if (kData->engine == nullptr)

  1404.         {

  1405.             return false;

  1406.         }

  1407. 

  1408.         if (kData->client != nullptr)

  1409.         {

  1410.             kData->engine->setLastError("Plugin client is already registered");

  1411.             return false;

  1412.         }

  1413. 

  1414.         if (fSynth == nullptr)

  1415.         {

  1416.             kData->engine->setLastError("null synth");

  1417.             return false;

  1418.         }

  1419. 

  1420.         if (filename == nullptr)

  1421.         {

  1422.             kData->engine->setLastError("null filename");

  1423.             return false;

  1424.         }

  1425. 

  1426.         if (label == nullptr)

  1427.         {

  1428.             kData->engine->setLastError("null label");

  1429.             return false;

  1430.         }

  1431. 

  1432.         // ---------------------------------------------------------------

  1433.         // open soundfont

  1434. 

  1435.         fSynthId = fluid_synth_sfload(fSynth, filename, 0);

  1436. 

  1437.         if (fSynthId < 0)

  1438.         {

  1439.             kData->engine->setLastError("Failed to load SoundFont file");

  1440.             return false;

  1441.         }

  1442. 

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

  1444.         // get info

  1445. 

  1446.         fFilename = filename;

  1447.         fLabel    = label;

  1448. 

  1449.         if (name != nullptr)

  1450.             fName = kData->engine->getNewUniquePluginName(name);

  1451.         else

  1452.             fName = kData->engine->getNewUniquePluginName(label);

  1453. 

  1454.         // ---------------------------------------------------------------

  1455.         // register client

  1456. 

  1457.         kData->client = kData->engine->addClient(this);

  1458. 

  1459.         if (kData->client == nullptr || ! kData->client->isOk())

  1460.         {

  1461.             kData->engine->setLastError("Failed to register plugin client");

  1462.             return false;

  1463.         }

  1464. 

  1465.         // ---------------------------------------------------------------

  1466.         // load plugin settings

  1467. 

  1468.         {

  1469.             // set default options

  1470.             fOptions = 0x0;

  1471. 

  1472.             fOptions |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1473.             fOptions |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1474.             fOptions |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  1475.             fOptions |= PLUGIN_OPTION_SEND_PITCHBEND;

  1476.             fOptions |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1477. 

  1478.             // load settings

  1479.             kData->idStr  = "SF2/";

  1480.             kData->idStr += label;

  1481.             fOptions = kData->loadSettings(fOptions, availableOptions());

  1482.         }

  1483. 

  1484.         return true;

  1485.     }

  1486. 

  1487. private:

  1488.     enum FluidSynthInputParameters {

  1489.         FluidSynthReverbOnOff    = 0,

  1490.         FluidSynthReverbRoomSize = 1,

  1491.         FluidSynthReverbDamp     = 2,

  1492.         FluidSynthReverbLevel    = 3,

  1493.         FluidSynthReverbWidth    = 4,

  1494.         FluidSynthChorusOnOff    = 5,

  1495.         FluidSynthChorusNr       = 6,

  1496.         FluidSynthChorusLevel    = 7,

  1497.         FluidSynthChorusSpeedHz  = 8,

  1498.         FluidSynthChorusDepthMs  = 9,

  1499.         FluidSynthChorusType     = 10,

  1500.         FluidSynthPolyphony      = 11,

  1501.         FluidSynthInterpolation  = 12,

  1502.         FluidSynthVoiceCount     = 13,

  1503.         FluidSynthParametersMax  = 14

  1504.     };

  1505. 

  1506.     const bool kUses16Outs;

  1507. 

  1508.     CarlaString fLabel;

  1509. 

  1510.     fluid_settings_t* fSettings;

  1511.     fluid_synth_t* fSynth;

  1512.     int fSynthId;

  1513. 

  1514.     float** fAudio16Buffers;

  1515.     float   fParamBuffers[FluidSynthParametersMax];

  1516. 

  1517.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(FluidSynthPlugin)

  1518. };

  1519. 

  1520. CARLA_BACKEND_END_NAMESPACE

  1521. 

  1522. #else // WANT_FLUIDSYNTH

  1523. # warning fluidsynth not available (no SF2 support)

  1524. #endif

  1525. 

  1526. CARLA_BACKEND_START_NAMESPACE

  1527. 

  1528. CarlaPlugin* CarlaPlugin::newSF2(const Initializer& init, const bool use16Outs)

  1529. {

  1530.     carla_debug("CarlaPlugin::newSF2({%p, \"%s\", \"%s\", \"%s\"}, %s)", init.engine, init.filename, init.name, init.label, bool2str(use16Outs));

  1531. 

  1532. #ifdef WANT_FLUIDSYNTH

  1533.     if (! fluid_is_soundfont(init.filename))

  1534.     {

  1535.         init.engine->setLastError("Requested file is not a valid SoundFont");

  1536.         return nullptr;

  1537.     }

  1538. 

  1539.     if (init.engine->getProccessMode() == PROCESS_MODE_CONTINUOUS_RACK && use16Outs)

  1540.     {

  1541.         init.engine->setLastError("Carla's rack mode can only work with Stereo modules, please choose the 2-channel only SoundFont version");

  1542.         return nullptr;

  1543.     }

  1544. 

  1545.     FluidSynthPlugin* const plugin(new FluidSynthPlugin(init.engine, init.id,  use16Outs));

  1546. 

  1547.     if (! plugin->init(init.filename, init.name, init.label))

  1548.     {

  1549.         delete plugin;

  1550.         return nullptr;

  1551.     }

  1552. 

  1553.     plugin->reload();

  1554. 

  1555.     return plugin;

  1556. #else

  1557.     init.engine->setLastError("fluidsynth support not available");

  1558.     return nullptr;

  1559. 

  1560.     // unused

  1561.     (void)use16Outs;

  1562. #endif

  1563. }

  1564. 

  1565. CARLA_BACKEND_END_NAMESPACE