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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. class FluidSynthPlugin : public CarlaPlugin

  29. {

  30. public:

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

  32.         : CarlaPlugin(engine, id),

  33.           kUses16Outs(use16Outs),

  34.           fSettings(nullptr),

  35.           fSynth(nullptr),

  36.           fSynthId(-1),

  37.           fAudio16Buffers(nullptr)

  38.     {

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

  40. 

  41.         // create settings

  42.         fSettings = new_fluid_settings();

  43. 

  44.         // define settings

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

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

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

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

  49. 

  50.         // create synth

  51.         fSynth = new_fluid_synth(fSettings);

  52. 

  53. #ifdef FLUIDSYNTH_VERSION_NEW_API

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

  55. #endif

  56. 

  57.         // set default values

  58.         fluid_synth_set_reverb_on(fSynth, 0);

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

  60. 

  61.         fluid_synth_set_chorus_on(fSynth, 0);

  62.         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);

  63. 

  64.         fluid_synth_set_polyphony(fSynth, 64);

  65. 

  66.         for (int i=0; i < 16; i++)

  67.             fluid_synth_set_interp_method(fSynth, i, FLUID_INTERP_DEFAULT);

  68.     }

  69. 

  70.     ~FluidSynthPlugin()

  71.     {

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

  73. 

  74.         delete_fluid_synth(fSynth);

  75.         delete_fluid_settings(fSettings);

  76. 

  77.         deleteBuffers();

  78.     }

  79. 

  80.     // -------------------------------------------------------------------

  81.     // Information (base)

  82. 

  83.     PluginType type() const

  84.     {

  85.         return PLUGIN_SF2;

  86.     }

  87. 

  88.     PluginCategory category() const

  89.     {

  90.         return PLUGIN_CATEGORY_SYNTH;

  91.     }

  92. 

  93.     // -------------------------------------------------------------------

  94.     // Information (count)

  95. 

  96.     uint32_t parameterScalePointCount(const uint32_t parameterId) const

  97.     {

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

  99. 

  100.         switch (parameterId)

  101.         {

  102.         case FluidSynthChorusType:

  103.             return 2;

  104.         case FluidSynthInterpolation:

  105.             return 4;

  106.         default:

  107.             return 0;

  108.         }

  109.     }

  110. 

  111.     // -------------------------------------------------------------------

  112.     // Information (per-plugin data)

  113. 

  114.     float getParameterValue(const uint32_t parameterId)

  115.     {

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

  117. 

  118.         return fParamBuffers[parameterId];

  119.     }

  120. 

  121.     float getParameterScalePointValue(const uint32_t parameterId, const uint32_t scalePointId)

  122.     {

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

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

  125. 

  126.         switch (parameterId)

  127.         {

  128.         case FluidSynthChorusType:

  129.             switch (scalePointId)

  130.             {

  131.             case 0:

  132.                 return FLUID_CHORUS_MOD_SINE;

  133.             case 1:

  134.                 return FLUID_CHORUS_MOD_TRIANGLE;

  135.             default:

  136.                 return FLUID_CHORUS_DEFAULT_TYPE;

  137.             }

  138.         case FluidSynthInterpolation:

  139.             switch (scalePointId)

  140.             {

  141.             case 0:

  142.                 return FLUID_INTERP_NONE;

  143.             case 1:

  144.                 return FLUID_INTERP_LINEAR;

  145.             case 2:

  146.                 return FLUID_INTERP_4THORDER;

  147.             case 3:

  148.                 return FLUID_INTERP_7THORDER;

  149.             default:

  150.                 return FLUID_INTERP_DEFAULT;

  151.             }

  152.         default:

  153.             return 0.0f;

  154.         }

  155.     }

  156. 

  157.     void getLabel(char* const strBuf)

  158.     {

  159.         if (fLabel.isNotEmpty())

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

  161.         else

  162.             CarlaPlugin::getLabel(strBuf);

  163.     }

  164. 

  165.     void getMaker(char* const strBuf)

  166.     {

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

  168.     }

  169. 

  170.     void getCopyright(char* const strBuf)

  171.     {

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

  173.     }

  174. 

  175.     void getRealName(char* const strBuf)

  176.     {

  177.         getLabel(strBuf);

  178.     }

  179. 

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

  181.     {

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

  183. 

  184.         switch (parameterId)

  185.         {

  186.         case FluidSynthReverbOnOff:

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

  188.             break;

  189.         case FluidSynthReverbRoomSize:

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

  191.             break;

  192.         case FluidSynthReverbDamp:

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

  194.             break;

  195.         case FluidSynthReverbLevel:

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

  197.             break;

  198.         case FluidSynthReverbWidth:

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

  200.             break;

  201.         case FluidSynthChorusOnOff:

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

  203.             break;

  204.         case FluidSynthChorusNr:

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

  206.             break;

  207.         case FluidSynthChorusLevel:

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

  209.             break;

  210.         case FluidSynthChorusSpeedHz:

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

  212.             break;

  213.         case FluidSynthChorusDepthMs:

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

  215.             break;

  216.         case FluidSynthChorusType:

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

  218.             break;

  219.         case FluidSynthPolyphony:

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

  221.             break;

  222.         case FluidSynthInterpolation:

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

  224.             break;

  225.         case FluidSynthVoiceCount:

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

  227.             break;

  228.         default:

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

  230.             break;

  231.         }

  232.     }

  233. 

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

  235.     {

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

  237. 

  238.         switch (parameterId)

  239.         {

  240.         case FluidSynthChorusSpeedHz:

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

  242.             break;

  243.         case FluidSynthChorusDepthMs:

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

  245.             break;

  246.         default:

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

  248.             break;

  249.         }

  250.     }

  251. 

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

  253.     {

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

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

  256. 

  257.         switch (parameterId)

  258.         {

  259.         case FluidSynthChorusType:

  260.             switch (scalePointId)

  261.             {

  262.             case 0:

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

  264.                 return;

  265.             case 1:

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

  267.                 return;

  268.             }

  269.         case FluidSynthInterpolation:

  270.             switch (scalePointId)

  271.             {

  272.             case 0:

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

  274.                 return;

  275.             case 1:

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

  277.                 return;

  278.             case 2:

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

  280.                 return;

  281.             case 3:

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

  283.                 return;

  284.             }

  285.         }

  286. 

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

  288.     }

  289. 

  290.     // -------------------------------------------------------------------

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

  292. 

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

  294.     {

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

  296. 

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

  298.         fParamBuffers[parameterId] = fixedValue;

  299. 

  300.         {

  301.             const ScopedProcessLocker spl(this, (sendGui || sendOsc || sendCallback));

  302. 

  303.             switch (parameterId)

  304.             {

  305.             case FluidSynthReverbOnOff:

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

  307.                 break;

  308. 

  309.             case FluidSynthReverbRoomSize:

  310.             case FluidSynthReverbDamp:

  311.             case FluidSynthReverbLevel:

  312.             case FluidSynthReverbWidth:

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

  314.                 break;

  315. 

  316.             case FluidSynthChorusOnOff:

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

  318.                 break;

  319. 

  320.             case FluidSynthChorusNr:

  321.             case FluidSynthChorusLevel:

  322.             case FluidSynthChorusSpeedHz:

  323.             case FluidSynthChorusDepthMs:

  324.             case FluidSynthChorusType:

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

  326.                 break;

  327. 

  328.             case FluidSynthPolyphony:

  329.                 fluid_synth_set_polyphony(fSynth, value);

  330.                 break;

  331. 

  332.             case FluidSynthInterpolation:

  333.                 for (int i=0; i < 16; i++)

  334.                     fluid_synth_set_interp_method(fSynth, i, value);

  335.                 break;

  336. 

  337.             default:

  338.                 break;

  339.             }

  340.         }

  341. 

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

  343.     }

  344. 

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

  346.     {

  347.         CARLA_ASSERT(fSynth != nullptr);

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

  349. 

  350.         if (index < -1)

  351.             index = -1;

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

  353.             return;

  354. 

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

  356.             return;

  357. 

  358.         if (index >= 0)

  359.         {

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

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

  362. 

  363.             const ScopedProcessLocker spl(this, (sendGui || sendOsc || sendCallback));

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

  365.         }

  366. 

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

  368.     }

  369. 

  370.     // -------------------------------------------------------------------

  371.     // Plugin state

  372. 

  373.     void reload()

  374.     {

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

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

  377.         CARLA_ASSERT(fSynth != nullptr);

  378. 

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

  380. 

  381.         // Safely disable plugin for reload

  382.         const ScopedDisabler sd(this);

  383. 

  384.         deleteBuffers();

  385. 

  386.         uint32_t aOuts, params, j;

  387.         aOuts  = kUses16Outs ? 32 : 2;

  388.         params = FluidSynthParametersMax;

  389. 

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

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

  392. 

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

  394.         CarlaString portName;

  395. 

  396.         // ---------------------------------------

  397.         // Audio Outputs

  398. 

  399.         if (kUses16Outs)

  400.         {

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

  402.             {

  403.                 portName.clear();

  404. 

  405.                 if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  406.                 {

  407.                     portName  = fName;

  408.                     portName += ":";

  409.                 }

  410. 

  411.                 portName += "out-";

  412. 

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

  414.                     portName += "0";

  415. 

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

  417. 

  418.                 if (j % 2 == 0)

  419.                     portName += "L";

  420.                 else

  421.                     portName += "R";

  422. 

  423.                 portName.truncate(portNameSize);

  424. 

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

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

  427.             }

  428. 

  429.             fAudio16Buffers = new float*[aOuts];

  430. 

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

  432.                 fAudio16Buffers[j] = nullptr;

  433.         }

  434.         else

  435.         {

  436.             // out-left

  437.             portName.clear();

  438. 

  439.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  440.             {

  441.                 portName  = fName;

  442.                 portName += ":";

  443.             }

  444. 

  445.             portName += "out-left";

  446.             portName.truncate(portNameSize);

  447. 

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

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

  450. 

  451.             // out-right

  452.             portName.clear();

  453. 

  454.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  455.             {

  456.                 portName  = fName;

  457.                 portName += ":";

  458.             }

  459. 

  460.             portName += "out-right";

  461.             portName.truncate(portNameSize);

  462. 

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

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

  465.         }

  466. 

  467.         // ---------------------------------------

  468.         // Event Input

  469. 

  470.         {

  471.             portName.clear();

  472. 

  473.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  474.             {

  475.                 portName  = fName;

  476.                 portName += ":";

  477.             }

  478. 

  479.             portName += "event-in";

  480.             portName.truncate(portNameSize);

  481. 

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

  483.         }

  484. 

  485.         // ---------------------------------------

  486.         // Event Output

  487. 

  488.         {

  489.             portName.clear();

  490. 

  491.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  492.             {

  493.                 portName  = fName;

  494.                 portName += ":";

  495.             }

  496. 

  497.             portName += "event-out";

  498.             portName.truncate(portNameSize);

  499. 

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

  501.         }

  502. 

  503.         // ----------------------

  504.         j = FluidSynthReverbOnOff;

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

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

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

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

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

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

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

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

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

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

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

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

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

  518. 

  519.         // ----------------------

  520.         j = FluidSynthReverbRoomSize;

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

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

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

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

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

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

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

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

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

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

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

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

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

  534. 

  535.         // ----------------------

  536.         j = FluidSynthReverbDamp;

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

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

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

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

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

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

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

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

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

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

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

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

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

  550. 

  551.         // ----------------------

  552.         j = FluidSynthReverbLevel;

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

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

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

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

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

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

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

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

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

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

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

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

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

  566. 

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

  568.         j = FluidSynthReverbWidth;

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

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

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

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

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

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

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

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

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

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

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

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

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

  582. 

  583.         // ----------------------

  584.         j = FluidSynthChorusOnOff;

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

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

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

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

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

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

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

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

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

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

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

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

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

  598. 

  599.         // ----------------------

  600.         j = FluidSynthChorusNr;

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

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

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

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

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

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

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

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

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

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

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

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

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

  614. 

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

  616.         j = FluidSynthChorusLevel;

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

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

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

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

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

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

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

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

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

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

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

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

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

  630. 

  631.         // ----------------------

  632.         j = FluidSynthChorusSpeedHz;

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

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

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

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

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

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

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

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

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

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

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

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

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

  646. 

  647.         // ----------------------

  648.         j = FluidSynthChorusDepthMs;

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

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

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

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

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

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

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

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

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

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

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

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

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

  662. 

  663.         // ----------------------

  664.         j = FluidSynthChorusType;

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

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

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

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

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

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

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

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

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

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

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

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

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

  678. 

  679.         // ----------------------

  680.         j = FluidSynthPolyphony;

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

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

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

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

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

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

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

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

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

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

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

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

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

  694. 

  695.         // ----------------------

  696.         j = FluidSynthInterpolation;

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

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

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

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

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

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

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

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

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

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

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

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

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

  710. 

  711.         // ----------------------

  712.         j = FluidSynthVoiceCount;

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

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

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

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

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

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

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

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

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

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

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

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

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

  726. 

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

  728. 

  729.         // plugin hints

  730.         fHints  = 0x0;

  731.         fHints |= PLUGIN_IS_RTSAFE;

  732.         fHints |= PLUGIN_IS_SYNTH;

  733.         fHints |= PLUGIN_CAN_VOLUME;

  734.         fHints |= PLUGIN_CAN_BALANCE;

  735. 

  736.         // extra plugin hints

  737.         kData->extraHints  = 0x0;

  738.         kData->extraHints |= PLUGIN_HINT_CAN_RUN_RACK;

  739. 

  740.         // plugin options

  741.         fOptions  = 0x0;

  742.         fOptions |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  743.         fOptions |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  744.         fOptions |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  745.         fOptions |= PLUGIN_OPTION_SEND_PITCHBEND;

  746.         fOptions |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  747. 

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

  749.         reloadPrograms(true);

  750. 

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

  752.     }

  753. 

  754.     void reloadPrograms(const bool init)

  755.     {

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

  757. 

  758.         // Delete old programs

  759.         kData->midiprog.clear();

  760. 

  761.         // Query new programs

  762.         uint32_t count = 0;

  763.         fluid_sfont_t* f_sfont;

  764.         fluid_preset_t f_preset;

  765.         bool hasDrums = false;

  766. 

  767.         f_sfont = fluid_synth_get_sfont_by_id(fSynth, fSynthId);

  768. 

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

  770.         f_sfont->iteration_start(f_sfont);

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

  772.             count += 1;

  773. 

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

  775.         CARLA_ASSERT(count > 0);

  776. 

  777.         if (count == 0)

  778.             return;

  779. 

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

  781. 

  782.         // Update data

  783.         uint32_t i = 0;

  784.         f_sfont->iteration_start(f_sfont);

  785. 

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

  787.         {

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

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

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

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

  792. 

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

  794.                 hasDrums = true;

  795. 

  796.             i++;

  797.         }

  798. 

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

  800. 

  801. #ifndef BUILD_BRIDGE

  802.         // Update OSC Names

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

  804.         {

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

  806. 

  807.             for (i=0; i < kData->midiprog.count; i++)

  808.                 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);

  809.         }

  810. #endif

  811. 

  812.         if (init)

  813.         {

  814.             fluid_synth_program_reset(fSynth);

  815. 

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

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

  818.             {

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

  820. #ifdef FLUIDSYNTH_VERSION_NEW_API

  821.                 fluid_synth_set_channel_type(fSynth, i, CHANNEL_TYPE_MELODIC);

  822. #endif

  823.             }

  824. 

  825.             if (hasDrums)

  826.             {

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

  828. #ifdef FLUIDSYNTH_VERSION_NEW_API

  829.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_DRUM);

  830. #endif

  831.             }

  832.             else

  833.             {

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

  835. #ifdef FLUIDSYNTH_VERSION_NEW_API

  836.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_MELODIC);

  837. #endif

  838.             }

  839. 

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

  841.         }

  842.         else

  843.         {

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

  845.         }

  846.     }

  847. 

  848.     // -------------------------------------------------------------------

  849.     // Plugin processing

  850. 

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

  852.     {

  853.         uint32_t i, k;

  854. 

  855.         // --------------------------------------------------------------------------------------------------------

  856.         // Check if active

  857. 

  858.         if (! kData->active)

  859.         {

  860.             // disable any output sound

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

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

  863. 

  864.             kData->activeBefore = kData->active;

  865.             return;

  866.         }

  867. 

  868.         // --------------------------------------------------------------------------------------------------------

  869.         // Check if not active before

  870. 

  871.         if (kData->needsReset || ! kData->activeBefore)

  872.         {

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

  874.             {

  875. #ifdef FLUIDSYNTH_VERSION_NEW_API

  876.                 fluid_synth_all_notes_off(fSynth, c);

  877.                 fluid_synth_all_sounds_off(fSynth, c);

  878. #else

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

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

  881. #endif

  882.             }

  883. 

  884.             kData->needsReset = false;

  885.         }

  886. 

  887.         // --------------------------------------------------------------------------------------------------------

  888.         // Event Input and Processing

  889. 

  890.         if (kData->activeBefore)

  891.         {

  892.             // ----------------------------------------------------------------------------------------------------

  893.             // MIDI Input (External)

  894. 

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

  896.             {

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

  898.                 {

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

  900. 

  901.                     CARLA_ASSERT(note.channel >= 0);

  902. 

  903.                     if (note.velo > 0)

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

  905.                     else

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

  907.                 }

  908. 

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

  910. 

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

  912. 

  913.             // ----------------------------------------------------------------------------------------------------

  914.             // Event Input (System)

  915. 

  916.             bool allNotesOffSent = false;

  917. 

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

  919.             uint32_t timeOffset = 0;

  920. 

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

  922. 

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

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

  925. 

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

  927.             {

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

  929. 

  930.                 time = event.time;

  931. 

  932.                 if (time >= frames)

  933.                     continue;

  934. 

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

  936. 

  937.                 if (time > timeOffset)

  938.                 {

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

  940.                     {

  941.                         timeOffset = time;

  942. 

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

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

  945.                     }

  946.                 }

  947. 

  948.                 // Control change

  949.                 switch (event.type)

  950.                 {

  951.                 case kEngineEventTypeNull:

  952.                     break;

  953. 

  954.                 case kEngineEventTypeControl:

  955.                 {

  956.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  957. 

  958.                     switch (ctrlEvent.type)

  959.                     {

  960.                     case kEngineControlEventTypeNull:

  961.                         break;

  962. 

  963.                     case kEngineControlEventTypeParameter:

  964.                     {

  965.                         // Control backend stuff

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

  967.                         {

  968.                             float value;

  969. 

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

  971.                             {

  972.                                 value = ctrlEvent.value;

  973.                                 setDryWet(value, false, false);

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

  975.                                 continue;

  976.                             }

  977. 

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

  979.                             {

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

  981.                                 setVolume(value, false, false);

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

  983.                                 continue;

  984.                             }

  985. 

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

  987.                             {

  988.                                 float left, right;

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

  990. 

  991.                                 if (value < 0.0f)

  992.                                 {

  993.                                     left  = -1.0f;

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

  995.                                 }

  996.                                 else if (value > 0.0f)

  997.                                 {

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

  999.                                     right = 1.0f;

  1000.                                 }

  1001.                                 else

  1002.                                 {

  1003.                                     left  = -1.0f;

  1004.                                     right = 1.0f;

  1005.                                 }

  1006. 

  1007.                                 setBalanceLeft(left, false, false);

  1008.                                 setBalanceRight(right, false, false);

  1009.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1010.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1011.                                 continue;

  1012.                             }

  1013.                         }

  1014. 

  1015.                         // Control plugin parameters

  1016.                         for (k=0; k < kData->param.count; k++)

  1017.                         {

  1018.                             if (kData->param.data[k].midiChannel != event.channel)

  1019.                                 continue;

  1020.                             if (kData->param.data[k].midiCC != ctrlEvent.param)

  1021.                                 continue;

  1022.                             if (kData->param.data[k].type != PARAMETER_INPUT)

  1023.                                 continue;

  1024.                             if ((kData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1025.                                 continue;

  1026. 

  1027.                             float value;

  1028. 

  1029.                             if (kData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1030.                             {

  1031.                                 value = (ctrlEvent.value < 0.5f) ? kData->param.ranges[k].min : kData->param.ranges[k].max;

  1032.                             }

  1033.                             else

  1034.                             {

  1035.                                 value = kData->param.ranges[i].unnormalizeValue(ctrlEvent.value);

  1036. 

  1037.                                 if (kData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1038.                                     value = std::rint(value);

  1039.                             }

  1040. 

  1041.                             setParameterValue(k, value, false, false, false);

  1042.                             postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1043.                         }

  1044. 

  1045.                         break;

  1046.                     }

  1047. 

  1048.                     case kEngineControlEventTypeMidiBank:

  1049.                         if (event.channel < 16)

  1050.                             nextBankIds[event.channel] = ctrlEvent.param;

  1051.                         break;

  1052. 

  1053.                     case kEngineControlEventTypeMidiProgram:

  1054.                         if (event.channel < 16)

  1055.                         {

  1056.                             const uint32_t bankId = nextBankIds[event.channel];

  1057.                             const uint32_t progId = ctrlEvent.param;

  1058. 

  1059.                             for (k=0; k < kData->midiprog.count; k++)

  1060.                             {

  1061.                                 if (kData->midiprog.data[k].bank == bankId && kData->midiprog.data[k].program == progId)

  1062.                                 {

  1063.                                     if (event.channel == kData->ctrlChannel)

  1064.                                     {

  1065.                                         setMidiProgram(k, false, false, false);

  1066.                                         postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0);

  1067.                                     }

  1068.                                     else

  1069.                                         fluid_synth_program_select(fSynth, event.channel, fSynthId, bankId, progId);

  1070. 

  1071.                                     break;

  1072.                                 }

  1073.                             }

  1074.                         }

  1075.                         break;

  1076. 

  1077.                     case kEngineControlEventTypeAllSoundOff:

  1078.                         if (event.channel == kData->ctrlChannel)

  1079.                         {

  1080.                             if (! allNotesOffSent)

  1081.                                 sendMidiAllNotesOff();

  1082. 

  1083.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 0.0);

  1084.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 1.0);

  1085. 

  1086.                             allNotesOffSent = true;

  1087. 

  1088. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1089.                             fluid_synth_all_sounds_off(fSynth, event.channel);

  1090. #else

  1091.                             fluid_synth_cc(f_synth, event.channel, MIDI_CONTROL_ALL_SOUND_OFF, 0);

  1092. #endif

  1093.                         }

  1094.                         break;

  1095. 

  1096.                     case kEngineControlEventTypeAllNotesOff:

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

  1098.                         {

  1099.                             if (! allNotesOffSent)

  1100.                                 sendMidiAllNotesOff();

  1101. 

  1102.                             allNotesOffSent = true;

  1103. 

  1104. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1105.                             fluid_synth_all_notes_off(fSynth, event.channel);

  1106. #else

  1107.                             fluid_synth_cc(f_synth, event.channel, MIDI_CONTROL_ALL_NOTES_OFF, 0);

  1108. #endif

  1109.                         }

  1110.                         break;

  1111.                     }

  1112. 

  1113.                     break;

  1114.                 }

  1115. 

  1116.                 case kEngineEventTypeMidi:

  1117.                 {

  1118.                     const EngineMidiEvent& midiEvent = event.midi;

  1119. 

  1120.                     uint8_t status  = MIDI_GET_STATUS_FROM_DATA(midiEvent.data);

  1121.                     uint8_t channel = event.channel;

  1122. 

  1123.                     // Fix bad note-off

  1124.                     if (MIDI_IS_STATUS_NOTE_ON(status) && midiEvent.data[2] == 0)

  1125.                         status -= 0x10;

  1126. 

  1127.                     if (MIDI_IS_STATUS_NOTE_OFF(status))

  1128.                     {

  1129.                         const uint8_t note = midiEvent.data[1];

  1130. 

  1131.                         fluid_synth_noteoff(fSynth, channel, note);

  1132. 

  1133.                         postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0);

  1134.                     }

  1135.                     else if (MIDI_IS_STATUS_NOTE_ON(status))

  1136.                     {

  1137.                         const uint8_t note = midiEvent.data[1];

  1138.                         const uint8_t velo = midiEvent.data[2];

  1139. 

  1140.                         fluid_synth_noteon(fSynth, channel, note, velo);

  1141. 

  1142.                         postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1143.                     }

  1144.                     else if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) != 0)

  1145.                     {

  1146.                         //const uint8_t note     = midiEvent.data[1];

  1147.                         //const uint8_t pressure = midiEvent.data[2];

  1148. 

  1149.                         // TODO, not in fluidsynth API

  1150.                     }

  1151.                     else if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (fOptions & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0)

  1152.                     {

  1153.                         const uint8_t control = midiEvent.data[1];

  1154.                         const uint8_t value   = midiEvent.data[2];

  1155. 

  1156.                         fluid_synth_cc(fSynth, channel, control, value);

  1157.                     }

  1158.                     else if (MIDI_IS_STATUS_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) != 0)

  1159.                     {

  1160.                         const uint8_t pressure = midiEvent.data[1];

  1161. 

  1162.                         fluid_synth_channel_pressure(fSynth, channel, pressure);;

  1163.                     }

  1164.                     else if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (fOptions & PLUGIN_OPTION_SEND_PITCHBEND) != 0)

  1165.                     {

  1166.                         const uint8_t lsb = midiEvent.data[1];

  1167.                         const uint8_t msb = midiEvent.data[2];

  1168. 

  1169.                         fluid_synth_pitch_bend(fSynth, channel, (msb << 7) | lsb);

  1170.                     }

  1171. 

  1172.                     break;

  1173.                 }

  1174.                 }

  1175.             }

  1176. 

  1177.             kData->postRtEvents.trySplice();

  1178. 

  1179.             if (frames > timeOffset)

  1180.                 processSingle(outBuffer, frames - timeOffset, timeOffset);

  1181. 

  1182.         } // End of Event Input and Processing

  1183. 

  1184.         CARLA_PROCESS_CONTINUE_CHECK;

  1185. 

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

  1187.         // Control Output

  1188. 

  1189.         {

  1190.             k = FluidSynthVoiceCount;

  1191.             fParamBuffers[k] = fluid_synth_get_active_voice_count(fSynth);

  1192.             kData->param.ranges[k].fixValue(fParamBuffers[k]);

  1193. 

  1194.             if (kData->param.data[k].midiCC > 0)

  1195.             {

  1196.                 double value = kData->param.ranges[k].normalizeValue(fParamBuffers[k]);

  1197.                 kData->event.portOut->writeControlEvent(0, kData->param.data[k].midiChannel, kEngineControlEventTypeParameter, kData->param.data[k].midiCC, value);

  1198.             }

  1199. 

  1200.         } // End of Control Output

  1201. 

  1202.         // --------------------------------------------------------------------------------------------------------

  1203. 

  1204.         kData->activeBefore = kData->active;

  1205.     }

  1206. 

  1207.     bool processSingle(float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1208.     {

  1209.         uint32_t i, k;

  1210. 

  1211.         // --------------------------------------------------------------------------------------------------------

  1212.         // Try lock, silence otherwise

  1213. 

  1214.         if (kData->engine->isOffline())

  1215.         {

  1216.             kData->mutex.lock();

  1217.         }

  1218.         else if (! kData->mutex.tryLock())

  1219.         {

  1220.             for (i=0; i < kData->audioOut.count; i++)

  1221.             {

  1222.                 for (k=0; k < frames; k++)

  1223.                     outBuffer[i][k+timeOffset] = 0.0f;

  1224.             }

  1225. 

  1226.             return false;

  1227.         }

  1228. 

  1229.         // --------------------------------------------------------------------------------------------------------

  1230.         // Fill plugin buffers and Run plugin

  1231. 

  1232.         if (kUses16Outs)

  1233.         {

  1234.             for (i=0; i < kData->audioOut.count; i++)

  1235.                 carla_zeroFloat(fAudio16Buffers[i], frames);

  1236. 

  1237.             fluid_synth_process(fSynth, frames, 0, nullptr, kData->audioOut.count, fAudio16Buffers);

  1238.         }

  1239.         else

  1240.             fluid_synth_write_float(fSynth, frames, outBuffer[0] + timeOffset, 0, 1, outBuffer[1] + timeOffset, 0, 1);

  1241. 

  1242.         // --------------------------------------------------------------------------------------------------------

  1243.         // Post-processing (volume and balance)

  1244. 

  1245.         {

  1246.             // note - balance not possible with kUses16Outs, so we can safely skip fAudioOutBuffers

  1247.             const bool doVolume  = (fHints & PLUGIN_CAN_VOLUME) > 0 && kData->postProc.volume != 1.0f;

  1248.             const bool doBalance = (fHints & PLUGIN_CAN_BALANCE) > 0 && (kData->postProc.balanceLeft != -1.0f || kData->postProc.balanceRight != 1.0f);

  1249. 

  1250.             float oldBufLeft[doBalance ? frames : 1];

  1251. 

  1252.             for (i=0; i < kData->audioOut.count; i++)

  1253.             {

  1254.                 // Balance

  1255.                 if (doBalance)

  1256.                 {

  1257.                     if (i % 2 == 0)

  1258.                         carla_copyFloat(oldBufLeft, outBuffer[i]+timeOffset, frames);

  1259. 

  1260.                     float balRangeL = (kData->postProc.balanceLeft  + 1.0f)/2.0f;

  1261.                     float balRangeR = (kData->postProc.balanceRight + 1.0f)/2.0f;

  1262. 

  1263.                     for (k=0; k < frames; k++)

  1264.                     {

  1265.                         if (i % 2 == 0)

  1266.                         {

  1267.                             // left

  1268.                             outBuffer[i][k+timeOffset]  = oldBufLeft[k]                * (1.0f - balRangeL);

  1269.                             outBuffer[i][k+timeOffset] += outBuffer[i+1][k+timeOffset] * (1.0f - balRangeR);

  1270.                         }

  1271.                         else

  1272.                         {

  1273.                             // right

  1274.                             outBuffer[i][k+timeOffset]  = outBuffer[i][k+timeOffset] * balRangeR;

  1275.                             outBuffer[i][k+timeOffset] += oldBufLeft[k]              * balRangeL;

  1276.                         }

  1277.                     }

  1278.                 }

  1279. 

  1280.                 // Volume

  1281.                 if (kUses16Outs)

  1282.                 {

  1283.                     for (k=0; k < frames; k++)

  1284.                         outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k] * kData->postProc.volume;

  1285.                 }

  1286.                 else if (doVolume)

  1287.                 {

  1288.                     for (k=0; k < frames; k++)

  1289.                         outBuffer[i][k+timeOffset] *= kData->postProc.volume;

  1290.                 }

  1291.             }

  1292. 

  1293.         } // End of Post-processing

  1294. 

  1295.         // --------------------------------------------------------------------------------------------------------

  1296. 

  1297.         kData->mutex.unlock();

  1298.         return true;

  1299.     }

  1300. 

  1301.     void bufferSizeChanged(const uint32_t newBufferSize)

  1302.     {

  1303.         if (! kUses16Outs)

  1304.             return;

  1305. 

  1306.         for (uint32_t i=0; i < kData->audioOut.count; i++)

  1307.         {

  1308.             if (fAudio16Buffers[i] != nullptr)

  1309.                 delete[] fAudio16Buffers[i];

  1310.             fAudio16Buffers[i] = new float[newBufferSize];

  1311.         }

  1312.     }

  1313. 

  1314.     // -------------------------------------------------------------------

  1315.     // Cleanup

  1316. 

  1317.     void deleteBuffers()

  1318.     {

  1319.         carla_debug("FluidSynthPlugin::deleteBuffers() - start");

  1320. 

  1321.         if (fAudio16Buffers != nullptr)

  1322.         {

  1323.             for (uint32_t i=0; i < kData->audioOut.count; i++)

  1324.             {

  1325.                 if (fAudio16Buffers[i] != nullptr)

  1326.                 {

  1327.                     delete[] fAudio16Buffers[i];

  1328.                     fAudio16Buffers[i] = nullptr;

  1329.                 }

  1330.             }

  1331. 

  1332.             delete[] fAudio16Buffers;

  1333.             fAudio16Buffers = nullptr;

  1334.         }

  1335. 

  1336.         CarlaPlugin::deleteBuffers();

  1337. 

  1338.         carla_debug("FluidSynthPlugin::deleteBuffers() - end");

  1339.     }

  1340. 

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

  1342. 

  1343.     bool init(const char* const filename, const char* const name, const char* const label)

  1344.     {

  1345.         CARLA_ASSERT(fSynth != nullptr);

  1346.         CARLA_ASSERT(filename != nullptr);

  1347.         CARLA_ASSERT(label != nullptr);

  1348. 

  1349.         // ---------------------------------------------------------------

  1350.         // open soundfont

  1351. 

  1352.         fSynthId = fluid_synth_sfload(fSynth, filename, 0);

  1353. 

  1354.         if (fSynthId < 0)

  1355.         {

  1356.             kData->engine->setLastError("Failed to load SoundFont file");

  1357.             return false;

  1358.         }

  1359. 

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

  1361.         // get info

  1362. 

  1363.         fFilename = filename;

  1364.         fLabel    = label;

  1365. 

  1366.         if (name != nullptr)

  1367.             fName = kData->engine->getNewUniquePluginName(name);

  1368.         else

  1369.             fName = kData->engine->getNewUniquePluginName(label);

  1370. 

  1371.         // ---------------------------------------------------------------

  1372.         // register client

  1373. 

  1374.         kData->client = kData->engine->addClient(this);

  1375. 

  1376.         if (kData->client == nullptr || ! kData->client->isOk())

  1377.         {

  1378.             kData->engine->setLastError("Failed to register plugin client");

  1379.             return false;

  1380.         }

  1381. 

  1382.         return true;

  1383.     }

  1384. 

  1385. private:

  1386.     enum FluidSynthInputParameters {

  1387.         FluidSynthReverbOnOff    = 0,

  1388.         FluidSynthReverbRoomSize = 1,

  1389.         FluidSynthReverbDamp     = 2,

  1390.         FluidSynthReverbLevel    = 3,

  1391.         FluidSynthReverbWidth    = 4,

  1392.         FluidSynthChorusOnOff    = 5,

  1393.         FluidSynthChorusNr       = 6,

  1394.         FluidSynthChorusLevel    = 7,

  1395.         FluidSynthChorusSpeedHz  = 8,

  1396.         FluidSynthChorusDepthMs  = 9,

  1397.         FluidSynthChorusType     = 10,

  1398.         FluidSynthPolyphony      = 11,

  1399.         FluidSynthInterpolation  = 12,

  1400.         FluidSynthVoiceCount     = 13,

  1401.         FluidSynthParametersMax  = 14

  1402.     };

  1403. 

  1404.     const bool kUses16Outs;

  1405. 

  1406.     CarlaString fLabel;

  1407. 

  1408.     fluid_settings_t* fSettings;

  1409.     fluid_synth_t* fSynth;

  1410.     int fSynthId;

  1411. 

  1412.     float** fAudio16Buffers;

  1413.     double  fParamBuffers[FluidSynthParametersMax];

  1414. };

  1415. 

  1416. CARLA_BACKEND_END_NAMESPACE

  1417. 

  1418. #else // WANT_FLUIDSYNTH

  1419. # warning fluidsynth not available (no SF2 support)

  1420. #endif

  1421. 

  1422. CARLA_BACKEND_START_NAMESPACE

  1423. 

  1424. CarlaPlugin* CarlaPlugin::newSF2(const Initializer& init, const bool use16Outs)

  1425. {

  1426.     carla_debug("CarlaPlugin::newSF2({%p, \"%s\", \"%s\", \"%s\"}, %s)", init.engine, init.filename, init.name, init.label, bool2str(use16Outs));

  1427. 

  1428. #ifdef WANT_FLUIDSYNTH

  1429.     if (! fluid_is_soundfont(init.filename))

  1430.     {

  1431.         init.engine->setLastError("Requested file is not a valid SoundFont");

  1432.         return nullptr;

  1433.     }

  1434. 

  1435.     if (init.engine->getProccessMode() == PROCESS_MODE_CONTINUOUS_RACK && use16Outs)

  1436.     {

  1437.         init.engine->setLastError("Carla's rack mode can only work with Stereo modules, please choose the 2-channel only SoundFont version");

  1438.         return nullptr;

  1439.     }

  1440. 

  1441.     FluidSynthPlugin* const plugin = new FluidSynthPlugin(init.engine, init.id,  use16Outs);

  1442. 

  1443.     if (! plugin->init(init.filename, init.name, init.label))

  1444.     {

  1445.         delete plugin;

  1446.         return nullptr;

  1447.     }

  1448. 

  1449.     plugin->reload();

  1450. 

  1451.     return plugin;

  1452. #else

  1453.     init.engine->setLastError("fluidsynth support not available");

  1454.     return nullptr;

  1455. 

  1456.     // unused

  1457.     (void)use16Outs;

  1458. #endif

  1459. }

  1460. 

  1461. CARLA_BACKEND_END_NAMESPACE