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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.     unsigned int availableOptions()

  115.     {

  116.         unsigned int options = 0x0;

  117. 

  118.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  119.         options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  120.         options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  121.         options |= PLUGIN_OPTION_SEND_PITCHBEND;

  122.         options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  123. 

  124.         return options;

  125.     }

  126. 

  127.     float getParameterValue(const uint32_t parameterId)

  128.     {

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

  130. 

  131.         return fParamBuffers[parameterId];

  132.     }

  133. 

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

  135.     {

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

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

  138. 

  139.         switch (parameterId)

  140.         {

  141.         case FluidSynthChorusType:

  142.             switch (scalePointId)

  143.             {

  144.             case 0:

  145.                 return FLUID_CHORUS_MOD_SINE;

  146.             case 1:

  147.                 return FLUID_CHORUS_MOD_TRIANGLE;

  148.             default:

  149.                 return FLUID_CHORUS_DEFAULT_TYPE;

  150.             }

  151.         case FluidSynthInterpolation:

  152.             switch (scalePointId)

  153.             {

  154.             case 0:

  155.                 return FLUID_INTERP_NONE;

  156.             case 1:

  157.                 return FLUID_INTERP_LINEAR;

  158.             case 2:

  159.                 return FLUID_INTERP_4THORDER;

  160.             case 3:

  161.                 return FLUID_INTERP_7THORDER;

  162.             default:

  163.                 return FLUID_INTERP_DEFAULT;

  164.             }

  165.         default:

  166.             return 0.0f;

  167.         }

  168.     }

  169. 

  170.     void getLabel(char* const strBuf)

  171.     {

  172.         if (fLabel.isNotEmpty())

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

  174.         else

  175.             CarlaPlugin::getLabel(strBuf);

  176.     }

  177. 

  178.     void getMaker(char* const strBuf)

  179.     {

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

  181.     }

  182. 

  183.     void getCopyright(char* const strBuf)

  184.     {

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

  186.     }

  187. 

  188.     void getRealName(char* const strBuf)

  189.     {

  190.         getLabel(strBuf);

  191.     }

  192. 

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

  194.     {

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

  196. 

  197.         switch (parameterId)

  198.         {

  199.         case FluidSynthReverbOnOff:

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

  201.             break;

  202.         case FluidSynthReverbRoomSize:

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

  204.             break;

  205.         case FluidSynthReverbDamp:

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

  207.             break;

  208.         case FluidSynthReverbLevel:

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

  210.             break;

  211.         case FluidSynthReverbWidth:

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

  213.             break;

  214.         case FluidSynthChorusOnOff:

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

  216.             break;

  217.         case FluidSynthChorusNr:

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

  219.             break;

  220.         case FluidSynthChorusLevel:

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

  222.             break;

  223.         case FluidSynthChorusSpeedHz:

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

  225.             break;

  226.         case FluidSynthChorusDepthMs:

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

  228.             break;

  229.         case FluidSynthChorusType:

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

  231.             break;

  232.         case FluidSynthPolyphony:

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

  234.             break;

  235.         case FluidSynthInterpolation:

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

  237.             break;

  238.         case FluidSynthVoiceCount:

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

  240.             break;

  241.         default:

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

  243.             break;

  244.         }

  245.     }

  246. 

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

  248.     {

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

  250. 

  251.         switch (parameterId)

  252.         {

  253.         case FluidSynthChorusSpeedHz:

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

  255.             break;

  256.         case FluidSynthChorusDepthMs:

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

  258.             break;

  259.         default:

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

  261.             break;

  262.         }

  263.     }

  264. 

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

  266.     {

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

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

  269. 

  270.         switch (parameterId)

  271.         {

  272.         case FluidSynthChorusType:

  273.             switch (scalePointId)

  274.             {

  275.             case 0:

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

  277.                 return;

  278.             case 1:

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

  280.                 return;

  281.             }

  282.         case FluidSynthInterpolation:

  283.             switch (scalePointId)

  284.             {

  285.             case 0:

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

  287.                 return;

  288.             case 1:

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

  290.                 return;

  291.             case 2:

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

  293.                 return;

  294.             case 3:

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

  296.                 return;

  297.             }

  298.         }

  299. 

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

  301.     }

  302. 

  303.     // -------------------------------------------------------------------

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

  305. 

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

  307.     {

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

  309. 

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

  311.         fParamBuffers[parameterId] = fixedValue;

  312. 

  313.         {

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

  315. 

  316.             switch (parameterId)

  317.             {

  318.             case FluidSynthReverbOnOff:

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

  320.                 break;

  321. 

  322.             case FluidSynthReverbRoomSize:

  323.             case FluidSynthReverbDamp:

  324.             case FluidSynthReverbLevel:

  325.             case FluidSynthReverbWidth:

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

  327.                 break;

  328. 

  329.             case FluidSynthChorusOnOff:

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

  331.                 break;

  332. 

  333.             case FluidSynthChorusNr:

  334.             case FluidSynthChorusLevel:

  335.             case FluidSynthChorusSpeedHz:

  336.             case FluidSynthChorusDepthMs:

  337.             case FluidSynthChorusType:

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

  339.                 break;

  340. 

  341.             case FluidSynthPolyphony:

  342.                 fluid_synth_set_polyphony(fSynth, value);

  343.                 break;

  344. 

  345.             case FluidSynthInterpolation:

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

  347.                     fluid_synth_set_interp_method(fSynth, i, value);

  348.                 break;

  349. 

  350.             default:

  351.                 break;

  352.             }

  353.         }

  354. 

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

  356.     }

  357. 

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

  359.     {

  360.         CARLA_ASSERT(fSynth != nullptr);

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

  362. 

  363.         if (index < -1)

  364.             index = -1;

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

  366.             return;

  367. 

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

  369.             return;

  370. 

  371.         if (index >= 0)

  372.         {

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

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

  375. 

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

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

  378.         }

  379. 

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

  381.     }

  382. 

  383.     // -------------------------------------------------------------------

  384.     // Plugin state

  385. 

  386.     void reload()

  387.     {

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

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

  390.         CARLA_ASSERT(fSynth != nullptr);

  391. 

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

  393. 

  394.         // Safely disable plugin for reload

  395.         const ScopedDisabler sd(this);

  396. 

  397.         deleteBuffers();

  398. 

  399.         uint32_t aOuts, params, j;

  400.         aOuts  = kUses16Outs ? 32 : 2;

  401.         params = FluidSynthParametersMax;

  402. 

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

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

  405. 

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

  407.         CarlaString portName;

  408. 

  409.         // ---------------------------------------

  410.         // Audio Outputs

  411. 

  412.         if (kUses16Outs)

  413.         {

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

  415.             {

  416.                 portName.clear();

  417. 

  418.                 if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  419.                 {

  420.                     portName  = fName;

  421.                     portName += ":";

  422.                 }

  423. 

  424.                 portName += "out-";

  425. 

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

  427.                     portName += "0";

  428. 

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

  430. 

  431.                 if (j % 2 == 0)

  432.                     portName += "L";

  433.                 else

  434.                     portName += "R";

  435. 

  436.                 portName.truncate(portNameSize);

  437. 

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

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

  440.             }

  441. 

  442.             fAudio16Buffers = new float*[aOuts];

  443. 

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

  445.                 fAudio16Buffers[j] = nullptr;

  446.         }

  447.         else

  448.         {

  449.             // out-left

  450.             portName.clear();

  451. 

  452.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  453.             {

  454.                 portName  = fName;

  455.                 portName += ":";

  456.             }

  457. 

  458.             portName += "out-left";

  459.             portName.truncate(portNameSize);

  460. 

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

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

  463. 

  464.             // out-right

  465.             portName.clear();

  466. 

  467.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  468.             {

  469.                 portName  = fName;

  470.                 portName += ":";

  471.             }

  472. 

  473.             portName += "out-right";

  474.             portName.truncate(portNameSize);

  475. 

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

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

  478.         }

  479. 

  480.         // ---------------------------------------

  481.         // Event Input

  482. 

  483.         {

  484.             portName.clear();

  485. 

  486.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  487.             {

  488.                 portName  = fName;

  489.                 portName += ":";

  490.             }

  491. 

  492.             portName += "event-in";

  493.             portName.truncate(portNameSize);

  494. 

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

  496.         }

  497. 

  498.         // ---------------------------------------

  499.         // Event Output

  500. 

  501.         {

  502.             portName.clear();

  503. 

  504.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  505.             {

  506.                 portName  = fName;

  507.                 portName += ":";

  508.             }

  509. 

  510.             portName += "event-out";

  511.             portName.truncate(portNameSize);

  512. 

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

  514.         }

  515. 

  516.         // ----------------------

  517.         j = FluidSynthReverbOnOff;

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

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

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

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

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

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

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

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

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

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

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

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

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

  531. 

  532.         // ----------------------

  533.         j = FluidSynthReverbRoomSize;

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

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

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

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

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

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

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

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

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

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

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

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

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

  547. 

  548.         // ----------------------

  549.         j = FluidSynthReverbDamp;

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

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

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

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

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

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

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

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

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

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

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

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

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

  563. 

  564.         // ----------------------

  565.         j = FluidSynthReverbLevel;

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

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

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

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

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

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

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

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

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

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

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

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

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

  579. 

  580.         // ----------------------

  581.         j = FluidSynthReverbWidth;

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

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

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

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

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

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

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

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

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

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

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

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

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

  595. 

  596.         // ----------------------

  597.         j = FluidSynthChorusOnOff;

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

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

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

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

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

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

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

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

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

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

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

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

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

  611. 

  612.         // ----------------------

  613.         j = FluidSynthChorusNr;

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

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

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

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

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

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

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

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

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

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

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

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

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

  627. 

  628.         // ----------------------

  629.         j = FluidSynthChorusLevel;

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

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

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

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

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

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

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

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

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

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

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

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

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

  643. 

  644.         // ----------------------

  645.         j = FluidSynthChorusSpeedHz;

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

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

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

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

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

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

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

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

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

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

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

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

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

  659. 

  660.         // ----------------------

  661.         j = FluidSynthChorusDepthMs;

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

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

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

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

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

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

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

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

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

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

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

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

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

  675. 

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

  677.         j = FluidSynthChorusType;

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

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

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

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

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

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

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

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

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

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

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

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

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

  691. 

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

  693.         j = FluidSynthPolyphony;

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

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

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

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

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

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

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

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

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

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

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

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

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

  707. 

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

  709.         j = FluidSynthInterpolation;

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

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

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

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

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

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

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

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

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

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

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

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

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

  723. 

  724.         // ----------------------

  725.         j = FluidSynthVoiceCount;

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

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

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

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

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

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

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

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

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

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

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

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

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

  739. 

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

  741. 

  742.         // plugin hints

  743.         fHints  = 0x0;

  744.         fHints |= PLUGIN_IS_RTSAFE;

  745.         fHints |= PLUGIN_IS_SYNTH;

  746.         fHints |= PLUGIN_CAN_VOLUME;

  747.         fHints |= PLUGIN_CAN_BALANCE;

  748. 

  749.         // extra plugin hints

  750.         kData->extraHints  = 0x0;

  751.         kData->extraHints |= PLUGIN_HINT_CAN_RUN_RACK;

  752. 

  753.         // plugin options

  754.         fOptions  = 0x0;

  755.         fOptions |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  756.         fOptions |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  757.         fOptions |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  758.         fOptions |= PLUGIN_OPTION_SEND_PITCHBEND;

  759.         fOptions |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  760. 

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

  762.         reloadPrograms(true);

  763. 

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

  765.     }

  766. 

  767.     void reloadPrograms(const bool init)

  768.     {

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

  770. 

  771.         // Delete old programs

  772.         kData->midiprog.clear();

  773. 

  774.         // Query new programs

  775.         uint32_t count = 0;

  776.         fluid_sfont_t* f_sfont;

  777.         fluid_preset_t f_preset;

  778.         bool hasDrums = false;

  779. 

  780.         f_sfont = fluid_synth_get_sfont_by_id(fSynth, fSynthId);

  781. 

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

  783.         f_sfont->iteration_start(f_sfont);

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

  785.             count += 1;

  786. 

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

  788.         CARLA_ASSERT(count > 0);

  789. 

  790.         if (count == 0)

  791.             return;

  792. 

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

  794. 

  795.         // Update data

  796.         uint32_t i = 0;

  797.         f_sfont->iteration_start(f_sfont);

  798. 

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

  800.         {

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

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

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

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

  805. 

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

  807.                 hasDrums = true;

  808. 

  809.             i++;

  810.         }

  811. 

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

  813. 

  814. #ifndef BUILD_BRIDGE

  815.         // Update OSC Names

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

  817.         {

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

  819. 

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

  821.                 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);

  822.         }

  823. #endif

  824. 

  825.         if (init)

  826.         {

  827.             fluid_synth_program_reset(fSynth);

  828. 

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

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

  831.             {

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

  833. #ifdef FLUIDSYNTH_VERSION_NEW_API

  834.                 fluid_synth_set_channel_type(fSynth, i, CHANNEL_TYPE_MELODIC);

  835. #endif

  836.             }

  837. 

  838.             if (hasDrums)

  839.             {

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

  841. #ifdef FLUIDSYNTH_VERSION_NEW_API

  842.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_DRUM);

  843. #endif

  844.             }

  845.             else

  846.             {

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

  848. #ifdef FLUIDSYNTH_VERSION_NEW_API

  849.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_MELODIC);

  850. #endif

  851.             }

  852. 

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

  854.         }

  855.         else

  856.         {

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

  858.         }

  859.     }

  860. 

  861.     // -------------------------------------------------------------------

  862.     // Plugin processing

  863. 

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

  865.     {

  866.         uint32_t i, k;

  867. 

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

  869.         // Check if active

  870. 

  871.         if (! kData->active)

  872.         {

  873.             // disable any output sound

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

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

  876. 

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

  878.             return;

  879.         }

  880. 

  881.         // --------------------------------------------------------------------------------------------------------

  882.         // Check if not active before

  883. 

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

  885.         {

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

  887.             {

  888. #ifdef FLUIDSYNTH_VERSION_NEW_API

  889.                 fluid_synth_all_notes_off(fSynth, c);

  890.                 fluid_synth_all_sounds_off(fSynth, c);

  891. #else

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

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

  894. #endif

  895.             }

  896. 

  897.             kData->needsReset = false;

  898.         }

  899. 

  900.         // --------------------------------------------------------------------------------------------------------

  901.         // Event Input and Processing

  902. 

  903.         if (kData->activeBefore)

  904.         {

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

  906.             // MIDI Input (External)

  907. 

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

  909.             {

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

  911.                 {

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

  913. 

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

  915. 

  916.                     if (note.velo > 0)

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

  918.                     else

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

  920.                 }

  921. 

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

  923. 

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

  925. 

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

  927.             // Event Input (System)

  928. 

  929.             bool allNotesOffSent = false;

  930. 

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

  932.             uint32_t timeOffset = 0;

  933. 

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

  935. 

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

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

  938. 

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

  940.             {

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

  942. 

  943.                 time = event.time;

  944. 

  945.                 if (time >= frames)

  946.                     continue;

  947. 

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

  949. 

  950.                 if (time > timeOffset)

  951.                 {

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

  953.                     {

  954.                         timeOffset = time;

  955. 

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

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

  958.                     }

  959.                 }

  960. 

  961.                 // Control change

  962.                 switch (event.type)

  963.                 {

  964.                 case kEngineEventTypeNull:

  965.                     break;

  966. 

  967.                 case kEngineEventTypeControl:

  968.                 {

  969.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  970. 

  971.                     switch (ctrlEvent.type)

  972.                     {

  973.                     case kEngineControlEventTypeNull:

  974.                         break;

  975. 

  976.                     case kEngineControlEventTypeParameter:

  977.                     {

  978.                         // Control backend stuff

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

  980.                         {

  981.                             float value;

  982. 

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

  984.                             {

  985.                                 value = ctrlEvent.value;

  986.                                 setDryWet(value, false, false);

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

  988.                                 continue;

  989.                             }

  990. 

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

  992.                             {

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

  994.                                 setVolume(value, false, false);

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

  996.                                 continue;

  997.                             }

  998. 

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

  1000.                             {

  1001.                                 float left, right;

  1002.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1003. 

  1004.                                 if (value < 0.0f)

  1005.                                 {

  1006.                                     left  = -1.0f;

  1007.                                     right = (value*2.0f)+1.0f;

  1008.                                 }

  1009.                                 else if (value > 0.0f)

  1010.                                 {

  1011.                                     left  = (value*2.0f)-1.0f;

  1012.                                     right = 1.0f;

  1013.                                 }

  1014.                                 else

  1015.                                 {

  1016.                                     left  = -1.0f;

  1017.                                     right = 1.0f;

  1018.                                 }

  1019. 

  1020.                                 setBalanceLeft(left, false, false);

  1021.                                 setBalanceRight(right, false, false);

  1022.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1023.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1024.                                 continue;

  1025.                             }

  1026.                         }

  1027. 

  1028.                         // Control plugin parameters

  1029.                         for (k=0; k < kData->param.count; k++)

  1030.                         {

  1031.                             if (kData->param.data[k].midiChannel != event.channel)

  1032.                                 continue;

  1033.                             if (kData->param.data[k].midiCC != ctrlEvent.param)

  1034.                                 continue;

  1035.                             if (kData->param.data[k].type != PARAMETER_INPUT)

  1036.                                 continue;

  1037.                             if ((kData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1038.                                 continue;

  1039. 

  1040.                             float value;

  1041. 

  1042.                             if (kData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1043.                             {

  1044.                                 value = (ctrlEvent.value < 0.5f) ? kData->param.ranges[k].min : kData->param.ranges[k].max;

  1045.                             }

  1046.                             else

  1047.                             {

  1048.                                 value = kData->param.ranges[i].unnormalizeValue(ctrlEvent.value);

  1049. 

  1050.                                 if (kData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1051.                                     value = std::rint(value);

  1052.                             }

  1053. 

  1054.                             setParameterValue(k, value, false, false, false);

  1055.                             postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1056.                         }

  1057. 

  1058.                         break;

  1059.                     }

  1060. 

  1061.                     case kEngineControlEventTypeMidiBank:

  1062.                         if (event.channel < 16)

  1063.                             nextBankIds[event.channel] = ctrlEvent.param;

  1064.                         break;

  1065. 

  1066.                     case kEngineControlEventTypeMidiProgram:

  1067.                         if (event.channel < 16)

  1068.                         {

  1069.                             const uint32_t bankId = nextBankIds[event.channel];

  1070.                             const uint32_t progId = ctrlEvent.param;

  1071. 

  1072.                             for (k=0; k < kData->midiprog.count; k++)

  1073.                             {

  1074.                                 if (kData->midiprog.data[k].bank == bankId && kData->midiprog.data[k].program == progId)

  1075.                                 {

  1076.                                     if (event.channel == kData->ctrlChannel)

  1077.                                     {

  1078.                                         setMidiProgram(k, false, false, false);

  1079.                                         postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0);

  1080.                                     }

  1081.                                     else

  1082.                                         fluid_synth_program_select(fSynth, event.channel, fSynthId, bankId, progId);

  1083. 

  1084.                                     break;

  1085.                                 }

  1086.                             }

  1087.                         }

  1088.                         break;

  1089. 

  1090.                     case kEngineControlEventTypeAllSoundOff:

  1091.                         if (event.channel == kData->ctrlChannel)

  1092.                         {

  1093.                             if (! allNotesOffSent)

  1094.                                 sendMidiAllNotesOff();

  1095. 

  1096.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 0.0);

  1097.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 1.0);

  1098. 

  1099.                             allNotesOffSent = true;

  1100. 

  1101. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1102.                             fluid_synth_all_sounds_off(fSynth, event.channel);

  1103. #else

  1104.                             fluid_synth_cc(f_synth, event.channel, MIDI_CONTROL_ALL_SOUND_OFF, 0);

  1105. #endif

  1106.                         }

  1107.                         break;

  1108. 

  1109.                     case kEngineControlEventTypeAllNotesOff:

  1110.                         if (event.channel == kData->ctrlChannel)

  1111.                         {

  1112.                             if (! allNotesOffSent)

  1113.                                 sendMidiAllNotesOff();

  1114. 

  1115.                             allNotesOffSent = true;

  1116. 

  1117. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1118.                             fluid_synth_all_notes_off(fSynth, event.channel);

  1119. #else

  1120.                             fluid_synth_cc(f_synth, event.channel, MIDI_CONTROL_ALL_NOTES_OFF, 0);

  1121. #endif

  1122.                         }

  1123.                         break;

  1124.                     }

  1125. 

  1126.                     break;

  1127.                 }

  1128. 

  1129.                 case kEngineEventTypeMidi:

  1130.                 {

  1131.                     const EngineMidiEvent& midiEvent = event.midi;

  1132. 

  1133.                     uint8_t status  = MIDI_GET_STATUS_FROM_DATA(midiEvent.data);

  1134.                     uint8_t channel = event.channel;

  1135. 

  1136.                     // Fix bad note-off

  1137.                     if (MIDI_IS_STATUS_NOTE_ON(status) && midiEvent.data[2] == 0)

  1138.                         status -= 0x10;

  1139. 

  1140.                     if (MIDI_IS_STATUS_NOTE_OFF(status))

  1141.                     {

  1142.                         const uint8_t note = midiEvent.data[1];

  1143. 

  1144.                         fluid_synth_noteoff(fSynth, channel, note);

  1145. 

  1146.                         postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0);

  1147.                     }

  1148.                     else if (MIDI_IS_STATUS_NOTE_ON(status))

  1149.                     {

  1150.                         const uint8_t note = midiEvent.data[1];

  1151.                         const uint8_t velo = midiEvent.data[2];

  1152. 

  1153.                         fluid_synth_noteon(fSynth, channel, note, velo);

  1154. 

  1155.                         postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1156.                     }

  1157.                     else if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) != 0)

  1158.                     {

  1159.                         //const uint8_t note     = midiEvent.data[1];

  1160.                         //const uint8_t pressure = midiEvent.data[2];

  1161. 

  1162.                         // TODO, not in fluidsynth API

  1163.                     }

  1164.                     else if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (fOptions & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0)

  1165.                     {

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

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

  1168. 

  1169.                         fluid_synth_cc(fSynth, channel, control, value);

  1170.                     }

  1171.                     else if (MIDI_IS_STATUS_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) != 0)

  1172.                     {

  1173.                         const uint8_t pressure = midiEvent.data[1];

  1174. 

  1175.                         fluid_synth_channel_pressure(fSynth, channel, pressure);;

  1176.                     }

  1177.                     else if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (fOptions & PLUGIN_OPTION_SEND_PITCHBEND) != 0)

  1178.                     {

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

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

  1181. 

  1182.                         fluid_synth_pitch_bend(fSynth, channel, (msb << 7) | lsb);

  1183.                     }

  1184. 

  1185.                     break;

  1186.                 }

  1187.                 }

  1188.             }

  1189. 

  1190.             kData->postRtEvents.trySplice();

  1191. 

  1192.             if (frames > timeOffset)

  1193.                 processSingle(outBuffer, frames - timeOffset, timeOffset);

  1194. 

  1195.         } // End of Event Input and Processing

  1196. 

  1197.         CARLA_PROCESS_CONTINUE_CHECK;

  1198. 

  1199.         // --------------------------------------------------------------------------------------------------------

  1200.         // Control Output

  1201. 

  1202.         {

  1203.             k = FluidSynthVoiceCount;

  1204.             fParamBuffers[k] = fluid_synth_get_active_voice_count(fSynth);

  1205.             kData->param.ranges[k].fixValue(fParamBuffers[k]);

  1206. 

  1207.             if (kData->param.data[k].midiCC > 0)

  1208.             {

  1209.                 double value = kData->param.ranges[k].normalizeValue(fParamBuffers[k]);

  1210.                 kData->event.portOut->writeControlEvent(0, kData->param.data[k].midiChannel, kEngineControlEventTypeParameter, kData->param.data[k].midiCC, value);

  1211.             }

  1212. 

  1213.         } // End of Control Output

  1214. 

  1215.         // --------------------------------------------------------------------------------------------------------

  1216. 

  1217.         kData->activeBefore = kData->active;

  1218.     }

  1219. 

  1220.     bool processSingle(float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1221.     {

  1222.         uint32_t i, k;

  1223. 

  1224.         // --------------------------------------------------------------------------------------------------------

  1225.         // Try lock, silence otherwise

  1226. 

  1227.         if (kData->engine->isOffline())

  1228.         {

  1229.             kData->mutex.lock();

  1230.         }

  1231.         else if (! kData->mutex.tryLock())

  1232.         {

  1233.             for (i=0; i < kData->audioOut.count; i++)

  1234.             {

  1235.                 for (k=0; k < frames; k++)

  1236.                     outBuffer[i][k+timeOffset] = 0.0f;

  1237.             }

  1238. 

  1239.             return false;

  1240.         }

  1241. 

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

  1243.         // Fill plugin buffers and Run plugin

  1244. 

  1245.         if (kUses16Outs)

  1246.         {

  1247.             for (i=0; i < kData->audioOut.count; i++)

  1248.                 carla_zeroFloat(fAudio16Buffers[i], frames);

  1249. 

  1250.             fluid_synth_process(fSynth, frames, 0, nullptr, kData->audioOut.count, fAudio16Buffers);

  1251.         }

  1252.         else

  1253.             fluid_synth_write_float(fSynth, frames, outBuffer[0] + timeOffset, 0, 1, outBuffer[1] + timeOffset, 0, 1);

  1254. 

  1255.         // --------------------------------------------------------------------------------------------------------

  1256.         // Post-processing (volume and balance)

  1257. 

  1258.         {

  1259.             // note - balance not possible with kUses16Outs, so we can safely skip fAudioOutBuffers

  1260.             const bool doVolume  = (fHints & PLUGIN_CAN_VOLUME) > 0 && kData->postProc.volume != 1.0f;

  1261.             const bool doBalance = (fHints & PLUGIN_CAN_BALANCE) > 0 && (kData->postProc.balanceLeft != -1.0f || kData->postProc.balanceRight != 1.0f);

  1262. 

  1263.             float oldBufLeft[doBalance ? frames : 1];

  1264. 

  1265.             for (i=0; i < kData->audioOut.count; i++)

  1266.             {

  1267.                 // Balance

  1268.                 if (doBalance)

  1269.                 {

  1270.                     if (i % 2 == 0)

  1271.                         carla_copyFloat(oldBufLeft, outBuffer[i]+timeOffset, frames);

  1272. 

  1273.                     float balRangeL = (kData->postProc.balanceLeft  + 1.0f)/2.0f;

  1274.                     float balRangeR = (kData->postProc.balanceRight + 1.0f)/2.0f;

  1275. 

  1276.                     for (k=0; k < frames; k++)

  1277.                     {

  1278.                         if (i % 2 == 0)

  1279.                         {

  1280.                             // left

  1281.                             outBuffer[i][k+timeOffset]  = oldBufLeft[k]                * (1.0f - balRangeL);

  1282.                             outBuffer[i][k+timeOffset] += outBuffer[i+1][k+timeOffset] * (1.0f - balRangeR);

  1283.                         }

  1284.                         else

  1285.                         {

  1286.                             // right

  1287.                             outBuffer[i][k+timeOffset]  = outBuffer[i][k+timeOffset] * balRangeR;

  1288.                             outBuffer[i][k+timeOffset] += oldBufLeft[k]              * balRangeL;

  1289.                         }

  1290.                     }

  1291.                 }

  1292. 

  1293.                 // Volume

  1294.                 if (kUses16Outs)

  1295.                 {

  1296.                     for (k=0; k < frames; k++)

  1297.                         outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k] * kData->postProc.volume;

  1298.                 }

  1299.                 else if (doVolume)

  1300.                 {

  1301.                     for (k=0; k < frames; k++)

  1302.                         outBuffer[i][k+timeOffset] *= kData->postProc.volume;

  1303.                 }

  1304.             }

  1305. 

  1306.         } // End of Post-processing

  1307. 

  1308.         // --------------------------------------------------------------------------------------------------------

  1309. 

  1310.         kData->mutex.unlock();

  1311.         return true;

  1312.     }

  1313. 

  1314.     void bufferSizeChanged(const uint32_t newBufferSize)

  1315.     {

  1316.         if (! kUses16Outs)

  1317.             return;

  1318. 

  1319.         for (uint32_t i=0; i < kData->audioOut.count; i++)

  1320.         {

  1321.             if (fAudio16Buffers[i] != nullptr)

  1322.                 delete[] fAudio16Buffers[i];

  1323.             fAudio16Buffers[i] = new float[newBufferSize];

  1324.         }

  1325.     }

  1326. 

  1327.     // -------------------------------------------------------------------

  1328.     // Cleanup

  1329. 

  1330.     void deleteBuffers()

  1331.     {

  1332.         carla_debug("FluidSynthPlugin::deleteBuffers() - start");

  1333. 

  1334.         if (fAudio16Buffers != nullptr)

  1335.         {

  1336.             for (uint32_t i=0; i < kData->audioOut.count; i++)

  1337.             {

  1338.                 if (fAudio16Buffers[i] != nullptr)

  1339.                 {

  1340.                     delete[] fAudio16Buffers[i];

  1341.                     fAudio16Buffers[i] = nullptr;

  1342.                 }

  1343.             }

  1344. 

  1345.             delete[] fAudio16Buffers;

  1346.             fAudio16Buffers = nullptr;

  1347.         }

  1348. 

  1349.         CarlaPlugin::deleteBuffers();

  1350. 

  1351.         carla_debug("FluidSynthPlugin::deleteBuffers() - end");

  1352.     }

  1353. 

  1354.     // -------------------------------------------------------------------

  1355. 

  1356.     bool init(const char* const filename, const char* const name, const char* const label)

  1357.     {

  1358.         CARLA_ASSERT(fSynth != nullptr);

  1359.         CARLA_ASSERT(filename != nullptr);

  1360.         CARLA_ASSERT(label != nullptr);

  1361. 

  1362.         // ---------------------------------------------------------------

  1363.         // open soundfont

  1364. 

  1365.         fSynthId = fluid_synth_sfload(fSynth, filename, 0);

  1366. 

  1367.         if (fSynthId < 0)

  1368.         {

  1369.             kData->engine->setLastError("Failed to load SoundFont file");

  1370.             return false;

  1371.         }

  1372. 

  1373.         // ---------------------------------------------------------------

  1374.         // get info

  1375. 

  1376.         fFilename = filename;

  1377.         fLabel    = label;

  1378. 

  1379.         if (name != nullptr)

  1380.             fName = kData->engine->getNewUniquePluginName(name);

  1381.         else

  1382.             fName = kData->engine->getNewUniquePluginName(label);

  1383. 

  1384.         // ---------------------------------------------------------------

  1385.         // register client

  1386. 

  1387.         kData->client = kData->engine->addClient(this);

  1388. 

  1389.         if (kData->client == nullptr || ! kData->client->isOk())

  1390.         {

  1391.             kData->engine->setLastError("Failed to register plugin client");

  1392.             return false;

  1393.         }

  1394. 

  1395.         return true;

  1396.     }

  1397. 

  1398. private:

  1399.     enum FluidSynthInputParameters {

  1400.         FluidSynthReverbOnOff    = 0,

  1401.         FluidSynthReverbRoomSize = 1,

  1402.         FluidSynthReverbDamp     = 2,

  1403.         FluidSynthReverbLevel    = 3,

  1404.         FluidSynthReverbWidth    = 4,

  1405.         FluidSynthChorusOnOff    = 5,

  1406.         FluidSynthChorusNr       = 6,

  1407.         FluidSynthChorusLevel    = 7,

  1408.         FluidSynthChorusSpeedHz  = 8,

  1409.         FluidSynthChorusDepthMs  = 9,

  1410.         FluidSynthChorusType     = 10,

  1411.         FluidSynthPolyphony      = 11,

  1412.         FluidSynthInterpolation  = 12,

  1413.         FluidSynthVoiceCount     = 13,

  1414.         FluidSynthParametersMax  = 14

  1415.     };

  1416. 

  1417.     const bool kUses16Outs;

  1418. 

  1419.     CarlaString fLabel;

  1420. 

  1421.     fluid_settings_t* fSettings;

  1422.     fluid_synth_t* fSynth;

  1423.     int fSynthId;

  1424. 

  1425.     float** fAudio16Buffers;

  1426.     double  fParamBuffers[FluidSynthParametersMax];

  1427. };

  1428. 

  1429. CARLA_BACKEND_END_NAMESPACE

  1430. 

  1431. #else // WANT_FLUIDSYNTH

  1432. # warning fluidsynth not available (no SF2 support)

  1433. #endif

  1434. 

  1435. CARLA_BACKEND_START_NAMESPACE

  1436. 

  1437. CarlaPlugin* CarlaPlugin::newSF2(const Initializer& init, const bool use16Outs)

  1438. {

  1439.     carla_debug("CarlaPlugin::newSF2({%p, \"%s\", \"%s\", \"%s\"}, %s)", init.engine, init.filename, init.name, init.label, bool2str(use16Outs));

  1440. 

  1441. #ifdef WANT_FLUIDSYNTH

  1442.     if (! fluid_is_soundfont(init.filename))

  1443.     {

  1444.         init.engine->setLastError("Requested file is not a valid SoundFont");

  1445.         return nullptr;

  1446.     }

  1447. 

  1448.     if (init.engine->getProccessMode() == PROCESS_MODE_CONTINUOUS_RACK && use16Outs)

  1449.     {

  1450.         init.engine->setLastError("Carla's rack mode can only work with Stereo modules, please choose the 2-channel only SoundFont version");

  1451.         return nullptr;

  1452.     }

  1453. 

  1454.     FluidSynthPlugin* const plugin = new FluidSynthPlugin(init.engine, init.id,  use16Outs);

  1455. 

  1456.     if (! plugin->init(init.filename, init.name, init.label))

  1457.     {

  1458.         delete plugin;

  1459.         return nullptr;

  1460.     }

  1461. 

  1462.     plugin->reload();

  1463. 

  1464.     return plugin;

  1465. #else

  1466.     init.engine->setLastError("fluidsynth support not available");

  1467.     return nullptr;

  1468. 

  1469.     // unused

  1470.     (void)use16Outs;

  1471. #endif

  1472. }

  1473. 

  1474. CARLA_BACKEND_END_NAMESPACE