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Carla/source/backend/plugin/fluidsynth.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 "carla_plugin_internal.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)

  32.         : CarlaPlugin(engine, id)

  33.     {

  34.         qDebug("FluidSynthPlugin::FluidSynthPlugin()");

  35. 

  36.         // create settings

  37.         fSettings = new_fluid_settings();

  38. 

  39.         // define settings

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

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

  42. 

  43.         // create synth

  44.         fSynth = new_fluid_synth(fSettings);

  45. 

  46. #ifdef FLUIDSYNTH_VERSION_NEW_API

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

  48. #endif

  49. 

  50.         // set default values

  51.         fluid_synth_set_reverb_on(fSynth, 0);

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

  53. 

  54.         fluid_synth_set_chorus_on(fSynth, 0);

  55.         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);

  56. 

  57.         fluid_synth_set_polyphony(fSynth, 64);

  58. 

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

  60.             fluid_synth_set_interp_method(fSynth, i, FLUID_INTERP_DEFAULT);

  61.     }

  62. 

  63.     ~FluidSynthPlugin()

  64.     {

  65.         qDebug("FluidSynthPlugin::~FluidSynthPlugin()");

  66. 

  67.         delete_fluid_synth(fSynth);

  68.         delete_fluid_settings(fSettings);

  69.     }

  70. 

  71.     // -------------------------------------------------------------------

  72.     // Information (base)

  73. 

  74.     PluginType type() const

  75.     {

  76.         return PLUGIN_SF2;

  77.     }

  78. 

  79.     PluginCategory category() const

  80.     {

  81.         return PLUGIN_CATEGORY_SYNTH;

  82.     }

  83. 

  84.     // -------------------------------------------------------------------

  85.     // Information (count)

  86. 

  87.     uint32_t parameterScalePointCount(const uint32_t parameterId) const

  88.     {

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

  90. 

  91.         switch (parameterId)

  92.         {

  93.         case FluidSynthChorusType:

  94.             return 2;

  95.         case FluidSynthInterpolation:

  96.             return 4;

  97.         default:

  98.             return 0;

  99.         }

  100.     }

  101. 

  102.     // -------------------------------------------------------------------

  103.     // Information (per-plugin data)

  104. 

  105.     float getParameterValue(const uint32_t parameterId)

  106.     {

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

  108. 

  109.         return fParamBuffers[parameterId];

  110.     }

  111. 

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

  113.     {

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

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

  116. 

  117.         switch (parameterId)

  118.         {

  119.         case FluidSynthChorusType:

  120.             switch (scalePointId)

  121.             {

  122.             case 0:

  123.                 return FLUID_CHORUS_MOD_SINE;

  124.             case 1:

  125.                 return FLUID_CHORUS_MOD_TRIANGLE;

  126.             default:

  127.                 return FLUID_CHORUS_DEFAULT_TYPE;

  128.             }

  129.         case FluidSynthInterpolation:

  130.             switch (scalePointId)

  131.             {

  132.             case 0:

  133.                 return FLUID_INTERP_NONE;

  134.             case 1:

  135.                 return FLUID_INTERP_LINEAR;

  136.             case 2:

  137.                 return FLUID_INTERP_4THORDER;

  138.             case 3:

  139.                 return FLUID_INTERP_7THORDER;

  140.             default:

  141.                 return FLUID_INTERP_DEFAULT;

  142.             }

  143.         default:

  144.             return 0.0f;

  145.         }

  146.     }

  147. 

  148.     void getLabel(char* const strBuf)

  149.     {

  150.         if (fLabel.isNotEmpty())

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

  152.         else

  153.             CarlaPlugin::getLabel(strBuf);

  154.     }

  155. 

  156.     void getMaker(char* const strBuf)

  157.     {

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

  159.     }

  160. 

  161.     void getCopyright(char* const strBuf)

  162.     {

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

  164.     }

  165. 

  166.     void getRealName(char* const strBuf)

  167.     {

  168.         getLabel(strBuf);

  169.     }

  170. 

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

  172.     {

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

  174. 

  175.         switch (parameterId)

  176.         {

  177.         case FluidSynthReverbOnOff:

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

  179.             break;

  180.         case FluidSynthReverbRoomSize:

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

  182.             break;

  183.         case FluidSynthReverbDamp:

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

  185.             break;

  186.         case FluidSynthReverbLevel:

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

  188.             break;

  189.         case FluidSynthReverbWidth:

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

  191.             break;

  192.         case FluidSynthChorusOnOff:

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

  194.             break;

  195.         case FluidSynthChorusNr:

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

  197.             break;

  198.         case FluidSynthChorusLevel:

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

  200.             break;

  201.         case FluidSynthChorusSpeedHz:

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

  203.             break;

  204.         case FluidSynthChorusDepthMs:

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

  206.             break;

  207.         case FluidSynthChorusType:

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

  209.             break;

  210.         case FluidSynthPolyphony:

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

  212.             break;

  213.         case FluidSynthInterpolation:

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

  215.             break;

  216.         case FluidSynthVoiceCount:

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

  218.             break;

  219.         default:

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

  221.             break;

  222.         }

  223.     }

  224. 

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

  226.     {

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

  228. 

  229.         switch (parameterId)

  230.         {

  231.         case FluidSynthChorusSpeedHz:

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

  233.             break;

  234.         case FluidSynthChorusDepthMs:

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

  236.             break;

  237.         default:

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

  239.             break;

  240.         }

  241.     }

  242. 

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

  244.     {

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

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

  247. 

  248.         switch (parameterId)

  249.         {

  250.         case FluidSynthChorusType:

  251.             switch (scalePointId)

  252.             {

  253.             case 0:

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

  255.                 return;

  256.             case 1:

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

  258.                 return;

  259.             }

  260.         case FluidSynthInterpolation:

  261.             switch (scalePointId)

  262.             {

  263.             case 0:

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

  265.                 return;

  266.             case 1:

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

  268.                 return;

  269.             case 2:

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

  271.                 return;

  272.             case 3:

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

  274.                 return;

  275.             }

  276.         }

  277. 

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

  279.     }

  280. 

  281.     // -------------------------------------------------------------------

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

  283. 

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

  285.     {

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

  287. 

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

  289.         fParamBuffers[parameterId] = fixedValue;

  290. 

  291.         switch (parameterId)

  292.         {

  293.         case FluidSynthReverbOnOff:

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

  295.             break;

  296. 

  297.         case FluidSynthReverbRoomSize:

  298.         case FluidSynthReverbDamp:

  299.         case FluidSynthReverbLevel:

  300.         case FluidSynthReverbWidth:

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

  302.             break;

  303. 

  304.         case FluidSynthChorusOnOff:

  305.         {

  306.             // FIXME

  307.             //const ScopedDisabler m(this, ! kData->engine->isOffline());

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

  309.             break;

  310.         }

  311. 

  312.         case FluidSynthChorusNr:

  313.         case FluidSynthChorusLevel:

  314.         case FluidSynthChorusSpeedHz:

  315.         case FluidSynthChorusDepthMs:

  316.         case FluidSynthChorusType:

  317.         {

  318.             //FIXME

  319.             //const ScopedDisabler m(this, ! kData->engine->isOffline());

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

  321.             break;

  322.         }

  323. 

  324.         case FluidSynthPolyphony:

  325.         {

  326.             //FIXME

  327.             //const ScopedDisabler m(this, ! kData->engine->isOffline());

  328.             fluid_synth_set_polyphony(fSynth, value);

  329.             break;

  330.         }

  331. 

  332.         case FluidSynthInterpolation:

  333.         {

  334.             //FIXME

  335.             //const ScopedDisabler m(this, ! kData->engine->isOffline());

  336. 

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

  338.                 fluid_synth_set_interp_method(fSynth, i, value);

  339. 

  340.             break;

  341.         }

  342. 

  343.         default:

  344.             break;

  345.         }

  346. 

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

  348.     }

  349. 

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

  351.     {

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

  353. 

  354.         if (index < -1)

  355.             index = -1;

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

  357.             return;

  358. 

  359.         if (kData->ctrlInChannel < 0 || kData->ctrlInChannel >= 16)

  360.             return;

  361. 

  362.         // FIXME

  363.         if (index >= 0)

  364.         {

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

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

  367. 

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

  369.             {

  370.                 //const CarlaEngine::ScopedLocker m(x_engine, block);

  371.                 fluid_synth_program_select(fSynth, kData->ctrlInChannel, fSynthId, bank, program);

  372.             }

  373.             else

  374.             {

  375.                 //const ScopedDisabler m(this, block);

  376.                 fluid_synth_program_select(fSynth, kData->ctrlInChannel, fSynthId, bank, program);

  377.             }

  378.         }

  379. 

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

  381.     }

  382. 

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

  384.     // Plugin state

  385. 

  386.     void reload()

  387.     {

  388.         qDebug("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.         if (kData->client->isActive())

  398.             kData->client->deactivate();

  399. 

  400.         deleteBuffers();

  401. 

  402.         uint32_t aOuts, params, j;

  403.         aOuts  = 2;

  404.         params = FluidSynthParametersMax;

  405. 

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

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

  408. 

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

  410.         CarlaString portName;

  411. 

  412.         // ---------------------------------------

  413.         // Audio Outputs

  414. 

  415.         {

  416.             portName.clear();

  417. 

  418.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  419.             {

  420.                 portName  = fName;

  421.                 portName += ":";

  422.             }

  423. 

  424.             portName += "out-left";

  425.             portName.truncate(portNameSize);

  426. 

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

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

  429.         }

  430. 

  431.         {

  432.             portName.clear();

  433. 

  434.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  435.             {

  436.                 portName  = fName;

  437.                 portName += ":";

  438.             }

  439. 

  440.             portName += "out-right";

  441.             portName.truncate(portNameSize);

  442. 

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

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

  445.         }

  446. 

  447.         // ---------------------------------------

  448.         // Event Input

  449. 

  450.         {

  451.             portName.clear();

  452. 

  453.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  454.             {

  455.                 portName  = fName;

  456.                 portName += ":";

  457.             }

  458. 

  459.             portName += "event-in";

  460.             portName.truncate(portNameSize);

  461. 

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

  463.         }

  464. 

  465.         // ---------------------------------------

  466.         // Event Output

  467. 

  468.         {

  469.             portName.clear();

  470. 

  471.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  472.             {

  473.                 portName  = fName;

  474.                 portName += ":";

  475.             }

  476. 

  477.             portName += "event-out";

  478.             portName.truncate(portNameSize);

  479. 

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

  481.         }

  482. 

  483.         // ----------------------

  484.         j = FluidSynthReverbOnOff;

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

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

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

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

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

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

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

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

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

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

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

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

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

  498. 

  499.         // ----------------------

  500.         j = FluidSynthReverbRoomSize;

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

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

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

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

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

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

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

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

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

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

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

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

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

  514. 

  515.         // ----------------------

  516.         j = FluidSynthReverbDamp;

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

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

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

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

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

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

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

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

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

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

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

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

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

  530. 

  531.         // ----------------------

  532.         j = FluidSynthReverbLevel;

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

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

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

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

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

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

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

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

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

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

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

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

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

  546. 

  547.         // ----------------------

  548.         j = FluidSynthReverbWidth;

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

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

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

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

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

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

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

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

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

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

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

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

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

  562. 

  563.         // ----------------------

  564.         j = FluidSynthChorusOnOff;

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

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

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

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

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

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

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

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

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

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

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

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

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

  578. 

  579.         // ----------------------

  580.         j = FluidSynthChorusNr;

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

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

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

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

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

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

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

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

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

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

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

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

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

  594. 

  595.         // ----------------------

  596.         j = FluidSynthChorusLevel;

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

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

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

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

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

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

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

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

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

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

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

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

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

  610. 

  611.         // ----------------------

  612.         j = FluidSynthChorusSpeedHz;

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

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

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

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

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

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

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

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

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

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

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

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

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

  626. 

  627.         // ----------------------

  628.         j = FluidSynthChorusDepthMs;

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

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

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

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

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

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

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

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

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

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

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

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

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

  642. 

  643.         // ----------------------

  644.         j = FluidSynthChorusType;

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

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

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

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

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

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

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

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

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

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

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

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

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

  658. 

  659.         // ----------------------

  660.         j = FluidSynthPolyphony;

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

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

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

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

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

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

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

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

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

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

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

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

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

  674. 

  675.         // ----------------------

  676.         j = FluidSynthInterpolation;

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

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

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

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

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

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

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

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

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

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

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

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

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

  690. 

  691.         // ----------------------

  692.         j = FluidSynthVoiceCount;

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

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

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

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

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

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

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

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

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

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

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

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

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

  706. 

  707.         // ---------------------------------------

  708. 

  709.         // plugin checks

  710.         fHints &= ~(PLUGIN_IS_SYNTH | PLUGIN_USES_CHUNKS | PLUGIN_CAN_DRYWET | PLUGIN_CAN_VOLUME | PLUGIN_CAN_BALANCE | PLUGIN_CAN_FORCE_STEREO);

  711. 

  712.         fHints |= PLUGIN_IS_SYNTH;

  713.         fHints |= PLUGIN_CAN_VOLUME;

  714.         fHints |= PLUGIN_CAN_BALANCE;

  715.         fHints |= PLUGIN_CAN_FORCE_STEREO;

  716. 

  717.         reloadPrograms(true);

  718. 

  719.         kData->client->activate();

  720. 

  721.         qDebug("FluidSynthPlugin::reload() - end");

  722.     }

  723. 

  724.     void reloadPrograms(const bool init)

  725.     {

  726.         qDebug("FluidSynthPlugin::reloadPrograms(%s)", bool2str(init));

  727. 

  728.         // Delete old programs

  729.         kData->midiprog.clear();

  730. 

  731.         // Query new programs

  732.         uint32_t count = 0;

  733.         fluid_sfont_t* f_sfont;

  734.         fluid_preset_t f_preset;

  735.         bool hasDrums = false;

  736. 

  737.         f_sfont = fluid_synth_get_sfont_by_id(fSynth, fSynthId);

  738. 

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

  740.         f_sfont->iteration_start(f_sfont);

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

  742.             count += 1;

  743. 

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

  745.         CARLA_ASSERT(count > 0);

  746. 

  747.         if (count == 0)

  748.             return;

  749. 

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

  751. 

  752.         // Update data

  753.         uint32_t i = 0;

  754.         f_sfont->iteration_start(f_sfont);

  755. 

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

  757.         {

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

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

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

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

  762. 

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

  764.                 hasDrums = true;

  765. 

  766.             i++;

  767.         }

  768. 

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

  770. 

  771.         // Update OSC Names

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

  773.         {

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

  775. 

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

  777.                 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);

  778.         }

  779. 

  780.         if (init)

  781.         {

  782.             fluid_synth_program_reset(fSynth);

  783. 

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

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

  786.             {

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

  788. #ifdef FLUIDSYNTH_VERSION_NEW_API

  789.                 fluid_synth_set_channel_type(fSynth, i, CHANNEL_TYPE_MELODIC);

  790. #endif

  791.             }

  792. 

  793.             if (hasDrums)

  794.             {

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

  796. #ifdef FLUIDSYNTH_VERSION_NEW_API

  797.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_DRUM);

  798. #endif

  799.             }

  800.             else

  801.             {

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

  803. #ifdef FLUIDSYNTH_VERSION_NEW_API

  804.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_MELODIC);

  805. #endif

  806.             }

  807. 

  808.             setMidiProgram(0, false, false, false, true);

  809.         }

  810.         else

  811.         {

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

  813.         }

  814.     }

  815. 

  816.     // -------------------------------------------------------------------

  817.     // Plugin processing

  818. 

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

  820.     {

  821.         uint32_t i, k;

  822.         uint32_t midiEventCount = 0;

  823. 

  824.         // --------------------------------------------------------------------------------------------------------

  825.         // Check if active

  826. 

  827.         if (! kData->active)

  828.         {

  829.             // disable any output sound

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

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

  832. 

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

  834.             return;

  835.         }

  836. 

  837.         // --------------------------------------------------------------------------------------------------------

  838.         // Check if active before

  839. 

  840.         if (! kData->activeBefore)

  841.         {

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

  843.             {

  844. #ifdef FLUIDSYNTH_VERSION_NEW_API

  845.                 fluid_synth_all_notes_off(fSynth, c);

  846.                 fluid_synth_all_sounds_off(fSynth, c);

  847. #else

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

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

  850. #endif

  851.             }

  852.         }

  853. 

  854.         // --------------------------------------------------------------------------------------------------------

  855.         // Event Input and Processing

  856. 

  857.         else

  858.         {

  859.             // ----------------------------------------------------------------------------------------------------

  860.             // MIDI Input (External)

  861. 

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

  863.             {

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

  865.                 {

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

  867. 

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

  869. 

  870.                     if (note.velo > 0)

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

  872.                     else

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

  874. 

  875.                     midiEventCount += 1;

  876.                 }

  877. 

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

  879. 

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

  881. 

  882.             // ----------------------------------------------------------------------------------------------------

  883.             // Event Input (System)

  884. 

  885.             bool allNotesOffSent = false;

  886. 

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

  888.             uint32_t timeOffset = 0;

  889. 

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

  891. 

  892.             if (kData->midiprog.current >= 0 && kData->midiprog.count > 0 && kData->ctrlInChannel >= 0 && kData->ctrlInChannel < 16)

  893.                 nextBankIds[kData->ctrlInChannel] = kData->midiprog.data[kData->midiprog.current].bank;

  894. 

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

  896.             {

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

  898. 

  899.                 time = event.time - framesOffset;

  900. 

  901.                 if (time >= frames)

  902.                     continue;

  903. 

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

  905. 

  906.                 if (time > timeOffset)

  907.                 {

  908.                     fluid_synth_write_float(fSynth, time - timeOffset, outBuffer[0] + timeOffset, 0, 1, outBuffer[1] + timeOffset, 0, 1);

  909.                     timeOffset = time;

  910.                 }

  911. 

  912.                 // Control change

  913.                 switch (event.type)

  914.                 {

  915.                 case kEngineEventTypeNull:

  916.                     break;

  917. 

  918.                 case kEngineEventTypeControl:

  919.                 {

  920.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  921. 

  922.                     switch (ctrlEvent.type)

  923.                     {

  924.                     case kEngineControlEventTypeNull:

  925.                         break;

  926. 

  927.                     case kEngineControlEventTypeParameter:

  928.                     {

  929.                         // Control backend stuff

  930.                         if (event.channel == kData->ctrlInChannel)

  931.                         {

  932.                             double value;

  933. 

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

  935.                             {

  936.                                 value = ctrlEvent.value;

  937.                                 setDryWet(value, false, false);

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

  939.                                 continue;

  940.                             }

  941. 

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

  943.                             {

  944.                                 value = ctrlEvent.value*127/100;

  945.                                 setVolume(value, false, false);

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

  947.                                 continue;

  948.                             }

  949. 

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

  951.                             {

  952.                                 double left, right;

  953.                                 value = ctrlEvent.value/0.5 - 1.0;

  954. 

  955.                                 if (value < 0.0)

  956.                                 {

  957.                                     left  = -1.0;

  958.                                     right = (value*2)+1.0;

  959.                                 }

  960.                                 else if (value > 0.0)

  961.                                 {

  962.                                     left  = (value*2)-1.0;

  963.                                     right = 1.0;

  964.                                 }

  965.                                 else

  966.                                 {

  967.                                     left  = -1.0;

  968.                                     right = 1.0;

  969.                                 }

  970. 

  971.                                 setBalanceLeft(left, false, false);

  972.                                 setBalanceRight(right, false, false);

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

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

  975.                                 continue;

  976.                             }

  977.                         }

  978. 

  979.                         // Control plugin parameters

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

  981.                         {

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

  983.                                 continue;

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

  985.                                 continue;

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

  987.                                 continue;

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

  989.                                 continue;

  990. 

  991.                             double value;

  992. 

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

  994.                             {

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

  996.                             }

  997.                             else

  998.                             {

  999.                                 // FIXME - ranges call for this

  1000.                                 value = ctrlEvent.value * (kData->param.ranges[k].max - kData->param.ranges[k].min) + kData->param.ranges[k].min;

  1001. 

  1002.                                 if (kData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1003.                                     value = std::rint(value);

  1004.                             }

  1005. 

  1006.                             setParameterValue(k, value, false, false, false);

  1007.                             postponeRtEvent(kPluginPostRtEventParameterChange, k, 0, value);

  1008.                         }

  1009. 

  1010.                         break;

  1011.                     }

  1012. 

  1013.                     case kEngineControlEventTypeMidiBank:

  1014.                         if (event.channel < 16 && event.channel != 9) // FIXME

  1015.                             nextBankIds[event.channel] = ctrlEvent.param;

  1016.                         break;

  1017. 

  1018.                     case kEngineControlEventTypeMidiProgram:

  1019.                         if (event.channel < 16)

  1020.                         {

  1021.                             const uint32_t bankId = nextBankIds[event.channel];

  1022.                             const uint32_t progId = ctrlEvent.param;

  1023. 

  1024.                             for (k=0; k < kData->midiprog.count; k++)

  1025.                             {

  1026.                                 if (kData->midiprog.data[k].bank == bankId && kData->midiprog.data[k].program == progId)

  1027.                                 {

  1028.                                     if (event.channel == kData->ctrlInChannel)

  1029.                                     {

  1030.                                         setMidiProgram(k, false, false, false, false);

  1031.                                         postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0);

  1032.                                     }

  1033.                                     else

  1034.                                         fluid_synth_program_select(fSynth, event.channel, fSynthId, bankId, progId);

  1035. 

  1036.                                     break;

  1037.                                 }

  1038.                             }

  1039.                         }

  1040.                         break;

  1041. 

  1042.                     case kEngineControlEventTypeAllSoundOff:

  1043.                         if (event.channel == kData->ctrlInChannel)

  1044.                         {

  1045.                             if (! allNotesOffSent)

  1046.                                 sendMidiAllNotesOff();

  1047. 

  1048.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 0.0);

  1049.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 1.0);

  1050. 

  1051.                             allNotesOffSent = true;

  1052.                         }

  1053.                         break;

  1054. 

  1055.                     case kEngineControlEventTypeAllNotesOff:

  1056.                         if (event.channel == kData->ctrlInChannel)

  1057.                         {

  1058.                             if (! allNotesOffSent)

  1059.                                 sendMidiAllNotesOff();

  1060. 

  1061.                             allNotesOffSent = true;

  1062.                         }

  1063.                         break;

  1064.                     }

  1065. 

  1066.                     break;

  1067.                 }

  1068. 

  1069.                 case kEngineEventTypeMidi:

  1070.                 {

  1071.                     if (midiEventCount >= MAX_MIDI_EVENTS)

  1072.                         continue;

  1073. 

  1074.                     const EngineMidiEvent& midiEvent = event.midi;

  1075. 

  1076.                     uint8_t status  = MIDI_GET_STATUS_FROM_DATA(midiEvent.data);

  1077.                     uint8_t channel = MIDI_GET_CHANNEL_FROM_DATA(midiEvent.data);

  1078. 

  1079.                     // Fix bad note-off

  1080.                     if (MIDI_IS_STATUS_NOTE_ON(status) && midiEvent.data[2] == 0)

  1081.                         status -= 0x10;

  1082. 

  1083.                     if (MIDI_IS_STATUS_NOTE_OFF(status))

  1084.                     {

  1085.                         const uint8_t note = midiEvent.data[1];

  1086. 

  1087.                         fluid_synth_noteoff(fSynth, channel, note);

  1088. 

  1089.                         postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0);

  1090.                     }

  1091.                     else if (MIDI_IS_STATUS_NOTE_ON(status))

  1092.                     {

  1093.                         const uint8_t note = midiEvent.data[1];

  1094.                         const uint8_t velo = midiEvent.data[2];

  1095. 

  1096.                         fluid_synth_noteon(fSynth, channel, note, velo);

  1097. 

  1098.                         postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1099.                     }

  1100.                     else if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status))

  1101.                     {

  1102.                         const uint8_t note     = midiEvent.data[1];

  1103.                         const uint8_t pressure = midiEvent.data[2];

  1104. 

  1105.                         // TODO, not in fluidsynth API?

  1106.                         Q_UNUSED(note);

  1107.                         Q_UNUSED(pressure);

  1108.                     }

  1109.                     else if (MIDI_IS_STATUS_AFTERTOUCH(status))

  1110.                     {

  1111.                         const uint8_t pressure = midiEvent.data[1];

  1112. 

  1113.                         fluid_synth_channel_pressure(fSynth, channel, pressure);;

  1114.                     }

  1115.                     else if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status))

  1116.                     {

  1117.                         const uint8_t lsb = midiEvent.data[1];

  1118.                         const uint8_t msb = midiEvent.data[2];

  1119. 

  1120.                         fluid_synth_pitch_bend(fSynth, channel, (msb << 7) | lsb);

  1121.                     }

  1122.                     else

  1123.                         continue;

  1124. 

  1125.                     midiEventCount += 1;

  1126. 

  1127.                     break;

  1128.                 }

  1129.                 }

  1130.             }

  1131. 

  1132.             kData->postRtEvents.trySplice();

  1133. 

  1134.             if (frames > timeOffset)

  1135.                 fluid_synth_write_float(fSynth, frames - timeOffset, outBuffer[0] + timeOffset, 0, 1, outBuffer[1] + timeOffset, 0, 1);

  1136. 

  1137.         } // End of Event Input and Processing

  1138. 

  1139.         CARLA_PROCESS_CONTINUE_CHECK;

  1140. 

  1141.         // --------------------------------------------------------------------------------------------------------

  1142.         // Post-processing (volume and balance)

  1143. 

  1144.         {

  1145.             const bool doVolume  = (fHints & PLUGIN_CAN_VOLUME) > 0 && kData->postProc.volume != 1.0f;

  1146.             const bool doBalance = (fHints & PLUGIN_CAN_BALANCE) > 0 && (kData->postProc.balanceLeft != -1.0f || kData->postProc.balanceRight != 1.0f);

  1147. 

  1148.             float oldBufLeft[doBalance ? frames : 1];

  1149. 

  1150.             for (i=0; i < kData->audioOut.count; i++)

  1151.             {

  1152.                 // Balance

  1153.                 if (doBalance)

  1154.                 {

  1155.                     if (i % 2 == 0)

  1156.                         std::memcpy(oldBufLeft, outBuffer[i], sizeof(float)*frames);

  1157. 

  1158.                     float balRangeL = (kData->postProc.balanceLeft  + 1.0f)/2.0f;

  1159.                     float balRangeR = (kData->postProc.balanceRight + 1.0f)/2.0f;

  1160. 

  1161.                     for (k=0; k < frames; k++)

  1162.                     {

  1163.                         if (i % 2 == 0)

  1164.                         {

  1165.                             // left

  1166.                             outBuffer[i][k]  = oldBufLeft[k]     * (1.0f - balRangeL);

  1167.                             outBuffer[i][k] += outBuffer[i+1][k] * (1.0f - balRangeR);

  1168.                         }

  1169.                         else

  1170.                         {

  1171.                             // right

  1172.                             outBuffer[i][k]  = outBuffer[i][k] * balRangeR;

  1173.                             outBuffer[i][k] += oldBufLeft[k]   * balRangeL;

  1174.                         }

  1175.                     }

  1176.                 }

  1177. 

  1178.                 // Volume

  1179.                 if (doVolume)

  1180.                 {

  1181.                     for (k=0; k < frames; k++)

  1182.                         outBuffer[i][k] *= kData->postProc.volume;

  1183.                 }

  1184.             }

  1185. 

  1186.         } // End of Post-processing

  1187. 

  1188.         CARLA_PROCESS_CONTINUE_CHECK;

  1189. 

  1190.         // --------------------------------------------------------------------------------------------------------

  1191.         // Control Output

  1192. 

  1193.         {

  1194.             k = FluidSynthVoiceCount;

  1195.             fParamBuffers[k] = fluid_synth_get_active_voice_count(fSynth);

  1196.             kData->param.ranges[k].fixValue(fParamBuffers[k]);

  1197. 

  1198.             if (kData->param.data[k].midiCC > 0)

  1199.             {

  1200.                 double value = kData->param.ranges[k].normalizeValue(fParamBuffers[k]);

  1201.                 kData->event.portOut->writeControlEvent(framesOffset, kData->param.data[k].midiChannel, kEngineControlEventTypeParameter, kData->param.data[k].midiCC, value);

  1202.             }

  1203. 

  1204.         } // End of Control Output

  1205. 

  1206.         // --------------------------------------------------------------------------------------------------------

  1207. 

  1208.         kData->activeBefore = kData->active;

  1209.     }

  1210. 

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

  1212. 

  1213.     bool init(const char* const filename, const char* const name, const char* const label)

  1214.     {

  1215.         CARLA_ASSERT(fSynth != nullptr);

  1216.         CARLA_ASSERT(filename != nullptr);

  1217.         CARLA_ASSERT(label != nullptr);

  1218. 

  1219.         // ---------------------------------------------------------------

  1220.         // open soundfont

  1221. 

  1222.         fSynthId = fluid_synth_sfload(fSynth, filename, 0);

  1223. 

  1224.         if (fSynthId < 0)

  1225.         {

  1226.             kData->engine->setLastError("Failed to load SoundFont file");

  1227.             return false;

  1228.         }

  1229. 

  1230.         // ---------------------------------------------------------------

  1231.         // get info

  1232. 

  1233.         fFilename = filename;

  1234.         fLabel    = label;

  1235. 

  1236.         if (name != nullptr)

  1237.             fName = kData->engine->getNewUniquePluginName(name);

  1238.         else

  1239.             fName = kData->engine->getNewUniquePluginName(label);

  1240. 

  1241.         // ---------------------------------------------------------------

  1242.         // register client

  1243. 

  1244.         kData->client = kData->engine->addClient(this);

  1245. 

  1246.         if (kData->client == nullptr || ! kData->client->isOk())

  1247.         {

  1248.             kData->engine->setLastError("Failed to register plugin client");

  1249.             return false;

  1250.         }

  1251. 

  1252.         return true;

  1253.     }

  1254. 

  1255. private:

  1256.     enum FluidSynthInputParameters {

  1257.         FluidSynthReverbOnOff    = 0,

  1258.         FluidSynthReverbRoomSize = 1,

  1259.         FluidSynthReverbDamp     = 2,

  1260.         FluidSynthReverbLevel    = 3,

  1261.         FluidSynthReverbWidth    = 4,

  1262.         FluidSynthChorusOnOff    = 5,

  1263.         FluidSynthChorusNr       = 6,

  1264.         FluidSynthChorusLevel    = 7,

  1265.         FluidSynthChorusSpeedHz  = 8,

  1266.         FluidSynthChorusDepthMs  = 9,

  1267.         FluidSynthChorusType     = 10,

  1268.         FluidSynthPolyphony      = 11,

  1269.         FluidSynthInterpolation  = 12,

  1270.         FluidSynthVoiceCount     = 13,

  1271.         FluidSynthParametersMax  = 14

  1272.     };

  1273. 

  1274.     CarlaString fLabel;

  1275. 

  1276.     fluid_settings_t* fSettings;

  1277.     fluid_synth_t* fSynth;

  1278.     int fSynthId;

  1279. 

  1280.     double fParamBuffers[FluidSynthParametersMax];

  1281. };

  1282. 

  1283. /**@}*/

  1284. 

  1285. CARLA_BACKEND_END_NAMESPACE

  1286. 

  1287. #else // WANT_FLUIDSYNTH

  1288. # warning fluidsynth not available (no SF2 support)

  1289. #endif

  1290. 

  1291. CARLA_BACKEND_START_NAMESPACE

  1292. 

  1293. CarlaPlugin* CarlaPlugin::newSF2(const Initializer& init)

  1294. {

  1295.     qDebug("CarlaPlugin::newSF2({%p, \"%s\", \"%s\", \"%s\"})", init.engine, init.filename, init.name, init.label);

  1296. 

  1297. #ifdef WANT_FLUIDSYNTH

  1298. 

  1299.     if (! fluid_is_soundfont(init.filename))

  1300.     {

  1301.         init.engine->setLastError("Requested file is not a valid SoundFont");

  1302.         return nullptr;

  1303.     }

  1304. 

  1305.     FluidSynthPlugin* const plugin = new FluidSynthPlugin(init.engine, init.id);

  1306. 

  1307.     if (! plugin->init(init.filename, init.name, init.label))

  1308.     {

  1309.         delete plugin;

  1310.         return nullptr;

  1311.     }

  1312. 

  1313.     plugin->reload();

  1314.     plugin->registerToOscClient();

  1315. 

  1316.     return plugin;

  1317. #else

  1318.     init.engine->setLastError("fluidsynth support not available");

  1319.     return nullptr;

  1320. #endif

  1321. }

  1322. 

  1323. CARLA_BACKEND_END_NAMESPACE