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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.         kData->singleMutex.lock();

  75.         kData->masterMutex.lock();

  76. 

  77.         delete_fluid_synth(fSynth);

  78.         delete_fluid_settings(fSettings);

  79. 

  80.         deleteBuffers();

  81.     }

  82. 

  83.     // -------------------------------------------------------------------

  84.     // Information (base)

  85. 

  86.     PluginType type() const

  87.     {

  88.         return PLUGIN_SF2;

  89.     }

  90. 

  91.     PluginCategory category()

  92.     {

  93.         return PLUGIN_CATEGORY_SYNTH;

  94.     }

  95. 

  96.     // -------------------------------------------------------------------

  97.     // Information (count)

  98. 

  99.     uint32_t parameterScalePointCount(const uint32_t parameterId) const

  100.     {

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

  102. 

  103.         switch (parameterId)

  104.         {

  105.         case FluidSynthChorusType:

  106.             return 2;

  107.         case FluidSynthInterpolation:

  108.             return 4;

  109.         default:

  110.             return 0;

  111.         }

  112.     }

  113. 

  114.     // -------------------------------------------------------------------

  115.     // Information (per-plugin data)

  116. 

  117.     unsigned int availableOptions()

  118.     {

  119.         unsigned int options = 0x0;

  120. 

  121.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  122.         options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  123.         options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  124.         options |= PLUGIN_OPTION_SEND_PITCHBEND;

  125.         options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  126. 

  127.         return options;

  128.     }

  129. 

  130.     float getParameterValue(const uint32_t parameterId)

  131.     {

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

  133. 

  134.         return fParamBuffers[parameterId];

  135.     }

  136. 

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

  138.     {

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

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

  141. 

  142.         switch (parameterId)

  143.         {

  144.         case FluidSynthChorusType:

  145.             switch (scalePointId)

  146.             {

  147.             case 0:

  148.                 return FLUID_CHORUS_MOD_SINE;

  149.             case 1:

  150.                 return FLUID_CHORUS_MOD_TRIANGLE;

  151.             default:

  152.                 return FLUID_CHORUS_DEFAULT_TYPE;

  153.             }

  154.         case FluidSynthInterpolation:

  155.             switch (scalePointId)

  156.             {

  157.             case 0:

  158.                 return FLUID_INTERP_NONE;

  159.             case 1:

  160.                 return FLUID_INTERP_LINEAR;

  161.             case 2:

  162.                 return FLUID_INTERP_4THORDER;

  163.             case 3:

  164.                 return FLUID_INTERP_7THORDER;

  165.             default:

  166.                 return FLUID_INTERP_DEFAULT;

  167.             }

  168.         default:

  169.             return 0.0f;

  170.         }

  171.     }

  172. 

  173.     void getLabel(char* const strBuf)

  174.     {

  175.         if (fLabel.isNotEmpty())

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

  177.         else

  178.             CarlaPlugin::getLabel(strBuf);

  179.     }

  180. 

  181.     void getMaker(char* const strBuf)

  182.     {

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

  184.     }

  185. 

  186.     void getCopyright(char* const strBuf)

  187.     {

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

  189.     }

  190. 

  191.     void getRealName(char* const strBuf)

  192.     {

  193.         getLabel(strBuf);

  194.     }

  195. 

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

  197.     {

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

  199. 

  200.         switch (parameterId)

  201.         {

  202.         case FluidSynthReverbOnOff:

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

  204.             break;

  205.         case FluidSynthReverbRoomSize:

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

  207.             break;

  208.         case FluidSynthReverbDamp:

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

  210.             break;

  211.         case FluidSynthReverbLevel:

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

  213.             break;

  214.         case FluidSynthReverbWidth:

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

  216.             break;

  217.         case FluidSynthChorusOnOff:

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

  219.             break;

  220.         case FluidSynthChorusNr:

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

  222.             break;

  223.         case FluidSynthChorusLevel:

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

  225.             break;

  226.         case FluidSynthChorusSpeedHz:

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

  228.             break;

  229.         case FluidSynthChorusDepthMs:

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

  231.             break;

  232.         case FluidSynthChorusType:

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

  234.             break;

  235.         case FluidSynthPolyphony:

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

  237.             break;

  238.         case FluidSynthInterpolation:

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

  240.             break;

  241.         case FluidSynthVoiceCount:

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

  243.             break;

  244.         default:

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

  246.             break;

  247.         }

  248.     }

  249. 

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

  251.     {

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

  253. 

  254.         switch (parameterId)

  255.         {

  256.         case FluidSynthChorusSpeedHz:

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

  258.             break;

  259.         case FluidSynthChorusDepthMs:

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

  261.             break;

  262.         default:

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

  264.             break;

  265.         }

  266.     }

  267. 

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

  269.     {

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

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

  272. 

  273.         switch (parameterId)

  274.         {

  275.         case FluidSynthChorusType:

  276.             switch (scalePointId)

  277.             {

  278.             case 0:

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

  280.                 return;

  281.             case 1:

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

  283.                 return;

  284.             }

  285.         case FluidSynthInterpolation:

  286.             switch (scalePointId)

  287.             {

  288.             case 0:

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

  290.                 return;

  291.             case 1:

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

  293.                 return;

  294.             case 2:

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

  296.                 return;

  297.             case 3:

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

  299.                 return;

  300.             }

  301.         }

  302. 

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

  304.     }

  305. 

  306.     // -------------------------------------------------------------------

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

  308. 

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

  310.     {

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

  312. 

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

  314.         fParamBuffers[parameterId] = fixedValue;

  315. 

  316.         {

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

  318. 

  319.             switch (parameterId)

  320.             {

  321.             case FluidSynthReverbOnOff:

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

  323.                 break;

  324. 

  325.             case FluidSynthReverbRoomSize:

  326.             case FluidSynthReverbDamp:

  327.             case FluidSynthReverbLevel:

  328.             case FluidSynthReverbWidth:

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

  330.                 break;

  331. 

  332.             case FluidSynthChorusOnOff:

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

  334.                 break;

  335. 

  336.             case FluidSynthChorusNr:

  337.             case FluidSynthChorusLevel:

  338.             case FluidSynthChorusSpeedHz:

  339.             case FluidSynthChorusDepthMs:

  340.             case FluidSynthChorusType:

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

  342.                 break;

  343. 

  344.             case FluidSynthPolyphony:

  345.                 fluid_synth_set_polyphony(fSynth, value);

  346.                 break;

  347. 

  348.             case FluidSynthInterpolation:

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

  350.                     fluid_synth_set_interp_method(fSynth, i, value);

  351.                 break;

  352. 

  353.             default:

  354.                 break;

  355.             }

  356.         }

  357. 

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

  359.     }

  360. 

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

  362.     {

  363.         CARLA_ASSERT(fSynth != nullptr);

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

  365. 

  366.         if (index < -1)

  367.             index = -1;

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

  369.             return;

  370. 

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

  372.             return;

  373. 

  374.         if (index >= 0)

  375.         {

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

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

  378. 

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

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

  381.         }

  382. 

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

  384.     }

  385. 

  386.     // -------------------------------------------------------------------

  387.     // Plugin state

  388. 

  389.     void reload()

  390.     {

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

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

  393.         CARLA_ASSERT(fSynth != nullptr);

  394. 

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

  396.             return;

  397.         if (fSynth == nullptr)

  398.             return;

  399. 

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

  401. 

  402.         // Safely disable plugin for reload

  403.         const ScopedDisabler sd(this);

  404. 

  405.         deleteBuffers();

  406. 

  407.         uint32_t aOuts, params, j;

  408.         aOuts  = kUses16Outs ? 32 : 2;

  409.         params = FluidSynthParametersMax;

  410. 

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

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

  413. 

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

  415.         CarlaString portName;

  416. 

  417.         // ---------------------------------------

  418.         // Audio Outputs

  419. 

  420.         if (kUses16Outs)

  421.         {

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

  423.             {

  424.                 portName.clear();

  425. 

  426.                 if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  427.                 {

  428.                     portName  = fName;

  429.                     portName += ":";

  430.                 }

  431. 

  432.                 portName += "out-";

  433. 

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

  435.                     portName += "0";

  436. 

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

  438. 

  439.                 if (j % 2 == 0)

  440.                     portName += "L";

  441.                 else

  442.                     portName += "R";

  443. 

  444.                 portName.truncate(portNameSize);

  445. 

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

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

  448.             }

  449. 

  450.             fAudio16Buffers = new float*[aOuts];

  451. 

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

  453.                 fAudio16Buffers[j] = nullptr;

  454.         }

  455.         else

  456.         {

  457.             // out-left

  458.             portName.clear();

  459. 

  460.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  461.             {

  462.                 portName  = fName;

  463.                 portName += ":";

  464.             }

  465. 

  466.             portName += "out-left";

  467.             portName.truncate(portNameSize);

  468. 

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

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

  471. 

  472.             // out-right

  473.             portName.clear();

  474. 

  475.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  476.             {

  477.                 portName  = fName;

  478.                 portName += ":";

  479.             }

  480. 

  481.             portName += "out-right";

  482.             portName.truncate(portNameSize);

  483. 

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

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

  486.         }

  487. 

  488.         // ---------------------------------------

  489.         // Event Input

  490. 

  491.         {

  492.             portName.clear();

  493. 

  494.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  495.             {

  496.                 portName  = fName;

  497.                 portName += ":";

  498.             }

  499. 

  500.             portName += "event-in";

  501.             portName.truncate(portNameSize);

  502. 

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

  504.         }

  505. 

  506.         // ---------------------------------------

  507.         // Event Output

  508. 

  509.         {

  510.             portName.clear();

  511. 

  512.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  513.             {

  514.                 portName  = fName;

  515.                 portName += ":";

  516.             }

  517. 

  518.             portName += "event-out";

  519.             portName.truncate(portNameSize);

  520. 

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

  522.         }

  523. 

  524.         // ----------------------

  525.         j = FluidSynthReverbOnOff;

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

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

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

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

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

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

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

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

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

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

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

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

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

  539. 

  540.         // ----------------------

  541.         j = FluidSynthReverbRoomSize;

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

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

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

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

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

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

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

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

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

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

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

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

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

  555. 

  556.         // ----------------------

  557.         j = FluidSynthReverbDamp;

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

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

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

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

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

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

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

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

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

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

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

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

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

  571. 

  572.         // ----------------------

  573.         j = FluidSynthReverbLevel;

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

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

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

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

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

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

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

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

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

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

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

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

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

  587. 

  588.         // ----------------------

  589.         j = FluidSynthReverbWidth;

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

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

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

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

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

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

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

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

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

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

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

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

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

  603. 

  604.         // ----------------------

  605.         j = FluidSynthChorusOnOff;

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

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

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

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

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

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

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

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

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

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

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

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

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

  619. 

  620.         // ----------------------

  621.         j = FluidSynthChorusNr;

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

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

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

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

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

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

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

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

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

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

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

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

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

  635. 

  636.         // ----------------------

  637.         j = FluidSynthChorusLevel;

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

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

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

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

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

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

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

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

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

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

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

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

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

  651. 

  652.         // ----------------------

  653.         j = FluidSynthChorusSpeedHz;

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

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

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

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

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

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

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

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

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

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

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

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

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

  667. 

  668.         // ----------------------

  669.         j = FluidSynthChorusDepthMs;

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

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

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

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

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

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

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

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

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

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

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

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

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

  683. 

  684.         // ----------------------

  685.         j = FluidSynthChorusType;

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

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

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

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

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

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

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

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

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

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

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

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

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

  699. 

  700.         // ----------------------

  701.         j = FluidSynthPolyphony;

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

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

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

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

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

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

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

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

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

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

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

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

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

  715. 

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

  717.         j = FluidSynthInterpolation;

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

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

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

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

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

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

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

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

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

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

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

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

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

  731. 

  732.         // ----------------------

  733.         j = FluidSynthVoiceCount;

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

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

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

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

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

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

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

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

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

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

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

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

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

  747. 

  748.         // ---------------------------------------

  749. 

  750.         // plugin hints

  751.         fHints  = 0x0;

  752.         fHints |= PLUGIN_IS_RTSAFE;

  753.         fHints |= PLUGIN_IS_SYNTH;

  754.         fHints |= PLUGIN_CAN_VOLUME;

  755.         fHints |= PLUGIN_CAN_BALANCE;

  756. 

  757.         // extra plugin hints

  758.         kData->extraHints  = 0x0;

  759.         kData->extraHints |= PLUGIN_HINT_CAN_RUN_RACK;

  760. 

  761.         // plugin options

  762.         fOptions  = 0x0;

  763.         fOptions |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  764.         fOptions |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  765.         fOptions |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  766.         fOptions |= PLUGIN_OPTION_SEND_PITCHBEND;

  767.         fOptions |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  768. 

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

  770.         reloadPrograms(true);

  771. 

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

  773.     }

  774. 

  775.     void reloadPrograms(const bool init)

  776.     {

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

  778. 

  779.         // Delete old programs

  780.         kData->midiprog.clear();

  781. 

  782.         // Query new programs

  783.         uint32_t count = 0;

  784.         fluid_sfont_t* f_sfont;

  785.         fluid_preset_t f_preset;

  786.         bool hasDrums = false;

  787. 

  788.         f_sfont = fluid_synth_get_sfont_by_id(fSynth, fSynthId);

  789. 

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

  791.         f_sfont->iteration_start(f_sfont);

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

  793.             count += 1;

  794. 

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

  796.         CARLA_ASSERT(count > 0);

  797. 

  798.         if (count == 0)

  799.             return;

  800. 

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

  802. 

  803.         // Update data

  804.         uint32_t i = 0;

  805.         f_sfont->iteration_start(f_sfont);

  806. 

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

  808.         {

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

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

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

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

  813. 

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

  815.                 hasDrums = true;

  816. 

  817.             i++;

  818.         }

  819. 

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

  821. 

  822. #ifndef BUILD_BRIDGE

  823.         // Update OSC Names

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

  825.         {

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

  827. 

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

  829.                 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);

  830.         }

  831. #endif

  832. 

  833.         if (init)

  834.         {

  835.             fluid_synth_program_reset(fSynth);

  836. 

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

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

  839.             {

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

  841. #ifdef FLUIDSYNTH_VERSION_NEW_API

  842.                 fluid_synth_set_channel_type(fSynth, i, CHANNEL_TYPE_MELODIC);

  843. #endif

  844.             }

  845. 

  846.             if (hasDrums)

  847.             {

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

  849. #ifdef FLUIDSYNTH_VERSION_NEW_API

  850.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_DRUM);

  851. #endif

  852.             }

  853.             else

  854.             {

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

  856. #ifdef FLUIDSYNTH_VERSION_NEW_API

  857.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_MELODIC);

  858. #endif

  859.             }

  860. 

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

  862.         }

  863.         else

  864.         {

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

  866.         }

  867.     }

  868. 

  869.     // -------------------------------------------------------------------

  870.     // Plugin processing

  871. 

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

  873.     {

  874.         uint32_t i, k;

  875. 

  876.         // --------------------------------------------------------------------------------------------------------

  877.         // Check if active

  878. 

  879.         if (! kData->active)

  880.         {

  881.             // disable any output sound

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

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

  884. 

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

  886.             return;

  887.         }

  888. 

  889.         // --------------------------------------------------------------------------------------------------------

  890.         // Check if not active before

  891. 

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

  893.         {

  894.             if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  895.             {

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

  897.                 {

  898. #ifdef FLUIDSYNTH_VERSION_NEW_API

  899.                     fluid_synth_all_notes_off(fSynth, c);

  900.                     fluid_synth_all_sounds_off(fSynth, c);

  901. #else

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

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

  904. #endif

  905.                 }

  906.             }

  907. 

  908.             kData->needsReset = false;

  909.         }

  910. 

  911.         // --------------------------------------------------------------------------------------------------------

  912.         // Event Input and Processing

  913. 

  914.         if (kData->activeBefore)

  915.         {

  916.             // ----------------------------------------------------------------------------------------------------

  917.             // MIDI Input (External)

  918. 

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

  920.             {

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

  922.                 {

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

  924. 

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

  926. 

  927.                     if (note.velo > 0)

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

  929.                     else

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

  931.                 }

  932. 

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

  934. 

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

  936. 

  937.             // ----------------------------------------------------------------------------------------------------

  938.             // Event Input (System)

  939. 

  940.             bool allNotesOffSent = false;

  941. 

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

  943.             uint32_t timeOffset = 0;

  944. 

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

  946. 

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

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

  949. 

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

  951.             {

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

  953. 

  954.                 time = event.time;

  955. 

  956.                 if (time >= frames)

  957.                     continue;

  958. 

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

  960. 

  961.                 if (time > timeOffset)

  962.                 {

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

  964.                     {

  965.                         timeOffset = time;

  966. 

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

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

  969.                     }

  970.                 }

  971. 

  972.                 // Control change

  973.                 switch (event.type)

  974.                 {

  975.                 case kEngineEventTypeNull:

  976.                     break;

  977. 

  978.                 case kEngineEventTypeControl:

  979.                 {

  980.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  981. 

  982.                     switch (ctrlEvent.type)

  983.                     {

  984.                     case kEngineControlEventTypeNull:

  985.                         break;

  986. 

  987.                     case kEngineControlEventTypeParameter:

  988.                     {

  989.                         // Control backend stuff

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

  991.                         {

  992.                             float value;

  993. 

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

  995.                             {

  996.                                 value = ctrlEvent.value;

  997.                                 setDryWet(value, false, false);

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

  999.                                 continue;

  1000.                             }

  1001. 

  1002.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (fHints & PLUGIN_CAN_VOLUME) > 0)

  1003.                             {

  1004.                                 value = ctrlEvent.value*127.0f/100.0f;

  1005.                                 setVolume(value, false, false);

  1006.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1007.                                 continue;

  1008.                             }

  1009. 

  1010.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (fHints & PLUGIN_CAN_BALANCE) > 0)

  1011.                             {

  1012.                                 float left, right;

  1013.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1014. 

  1015.                                 if (value < 0.0f)

  1016.                                 {

  1017.                                     left  = -1.0f;

  1018.                                     right = (value*2.0f)+1.0f;

  1019.                                 }

  1020.                                 else if (value > 0.0f)

  1021.                                 {

  1022.                                     left  = (value*2.0f)-1.0f;

  1023.                                     right = 1.0f;

  1024.                                 }

  1025.                                 else

  1026.                                 {

  1027.                                     left  = -1.0f;

  1028.                                     right = 1.0f;

  1029.                                 }

  1030. 

  1031.                                 setBalanceLeft(left, false, false);

  1032.                                 setBalanceRight(right, false, false);

  1033.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1034.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1035.                                 continue;

  1036.                             }

  1037.                         }

  1038. 

  1039.                         // Control plugin parameters

  1040.                         for (k=0; k < kData->param.count; k++)

  1041.                         {

  1042.                             if (kData->param.data[k].midiChannel != event.channel)

  1043.                                 continue;

  1044.                             if (kData->param.data[k].midiCC != ctrlEvent.param)

  1045.                                 continue;

  1046.                             if (kData->param.data[k].type != PARAMETER_INPUT)

  1047.                                 continue;

  1048.                             if ((kData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1049.                                 continue;

  1050. 

  1051.                             float value;

  1052. 

  1053.                             if (kData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1054.                             {

  1055.                                 value = (ctrlEvent.value < 0.5f) ? kData->param.ranges[k].min : kData->param.ranges[k].max;

  1056.                             }

  1057.                             else

  1058.                             {

  1059.                                 value = kData->param.ranges[i].unnormalizeValue(ctrlEvent.value);

  1060. 

  1061.                                 if (kData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1062.                                     value = std::rint(value);

  1063.                             }

  1064. 

  1065.                             setParameterValue(k, value, false, false, false);

  1066.                             postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1067.                         }

  1068. 

  1069.                         break;

  1070.                     }

  1071. 

  1072.                     case kEngineControlEventTypeMidiBank:

  1073.                         if (event.channel < 16 && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1074.                             nextBankIds[event.channel] = ctrlEvent.param;

  1075.                         break;

  1076. 

  1077.                     case kEngineControlEventTypeMidiProgram:

  1078.                         if (event.channel < 16 && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1079.                         {

  1080.                             const uint32_t bankId = nextBankIds[event.channel];

  1081.                             const uint32_t progId = ctrlEvent.param;

  1082. 

  1083.                             for (k=0; k < kData->midiprog.count; k++)

  1084.                             {

  1085.                                 if (kData->midiprog.data[k].bank == bankId && kData->midiprog.data[k].program == progId)

  1086.                                 {

  1087.                                     if (event.channel == kData->ctrlChannel)

  1088.                                     {

  1089.                                         setMidiProgram(k, false, false, false);

  1090.                                         postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0f);

  1091.                                     }

  1092.                                     else

  1093.                                         fluid_synth_program_select(fSynth, event.channel, fSynthId, bankId, progId);

  1094. 

  1095.                                     break;

  1096.                                 }

  1097.                             }

  1098.                         }

  1099.                         break;

  1100. 

  1101.                     case kEngineControlEventTypeAllSoundOff:

  1102.                         if (event.channel == kData->ctrlChannel)

  1103.                         {

  1104.                             if (! allNotesOffSent)

  1105.                             {

  1106.                                 allNotesOffSent = true;

  1107.                                 sendMidiAllNotesOff();

  1108.                             }

  1109. 

  1110.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 0.0f);

  1111.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 1.0f);

  1112. 

  1113.                             if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1114.                             {

  1115. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1116.                                 fluid_synth_all_sounds_off(fSynth, event.channel);

  1117. #else

  1118.                                 fluid_synth_cc(f_synth, event.channel, MIDI_CONTROL_ALL_SOUND_OFF, 0);

  1119. #endif

  1120.                             }

  1121.                         }

  1122.                         break;

  1123. 

  1124.                     case kEngineControlEventTypeAllNotesOff:

  1125.                         if (event.channel == kData->ctrlChannel)

  1126.                         {

  1127.                             if (! allNotesOffSent)

  1128.                             {

  1129.                                 allNotesOffSent = true;

  1130.                                 sendMidiAllNotesOff();

  1131.                             }

  1132. 

  1133.                             if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1134.                             {

  1135. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1136.                                 fluid_synth_all_notes_off(fSynth, event.channel);

  1137. #else

  1138.                                 fluid_synth_cc(f_synth, event.channel, MIDI_CONTROL_ALL_NOTES_OFF, 0);

  1139. #endif

  1140.                             }

  1141.                         }

  1142.                         break;

  1143.                     }

  1144. 

  1145.                     break;

  1146.                 }

  1147. 

  1148.                 case kEngineEventTypeMidi:

  1149.                 {

  1150.                     const EngineMidiEvent& midiEvent = event.midi;

  1151. 

  1152.                     uint8_t status  = MIDI_GET_STATUS_FROM_DATA(midiEvent.data);

  1153.                     uint8_t channel = event.channel;

  1154. 

  1155.                     // Fix bad note-off

  1156.                     if (MIDI_IS_STATUS_NOTE_ON(status) && midiEvent.data[2] == 0)

  1157.                         status -= 0x10;

  1158. 

  1159.                     if (MIDI_IS_STATUS_NOTE_OFF(status))

  1160.                     {

  1161.                         const uint8_t note = midiEvent.data[1];

  1162. 

  1163.                         fluid_synth_noteoff(fSynth, channel, note);

  1164. 

  1165.                         postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0f);

  1166.                     }

  1167.                     else if (MIDI_IS_STATUS_NOTE_ON(status))

  1168.                     {

  1169.                         const uint8_t note = midiEvent.data[1];

  1170.                         const uint8_t velo = midiEvent.data[2];

  1171. 

  1172.                         fluid_synth_noteon(fSynth, channel, note, velo);

  1173. 

  1174.                         postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1175.                     }

  1176.                     else if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) != 0)

  1177.                     {

  1178.                         //const uint8_t note     = midiEvent.data[1];

  1179.                         //const uint8_t pressure = midiEvent.data[2];

  1180. 

  1181.                         // TODO, not in fluidsynth API

  1182.                     }

  1183.                     else if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (fOptions & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0)

  1184.                     {

  1185.                         const uint8_t control = midiEvent.data[1];

  1186.                         const uint8_t value   = midiEvent.data[2];

  1187. 

  1188.                         fluid_synth_cc(fSynth, channel, control, value);

  1189.                     }

  1190.                     else if (MIDI_IS_STATUS_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) != 0)

  1191.                     {

  1192.                         const uint8_t pressure = midiEvent.data[1];

  1193. 

  1194.                         fluid_synth_channel_pressure(fSynth, channel, pressure);;

  1195.                     }

  1196.                     else if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (fOptions & PLUGIN_OPTION_SEND_PITCHBEND) != 0)

  1197.                     {

  1198.                         const uint8_t lsb = midiEvent.data[1];

  1199.                         const uint8_t msb = midiEvent.data[2];

  1200. 

  1201.                         fluid_synth_pitch_bend(fSynth, channel, (msb << 7) | lsb);

  1202.                     }

  1203. 

  1204.                     break;

  1205.                 }

  1206.                 }

  1207.             }

  1208. 

  1209.             kData->postRtEvents.trySplice();

  1210. 

  1211.             if (frames > timeOffset)

  1212.                 processSingle(outBuffer, frames - timeOffset, timeOffset);

  1213. 

  1214.         } // End of Event Input and Processing

  1215. 

  1216.         CARLA_PROCESS_CONTINUE_CHECK;

  1217. 

  1218.         // --------------------------------------------------------------------------------------------------------

  1219.         // Control Output

  1220. 

  1221.         {

  1222.             k = FluidSynthVoiceCount;

  1223.             fParamBuffers[k] = fluid_synth_get_active_voice_count(fSynth);

  1224.             kData->param.ranges[k].fixValue(fParamBuffers[k]);

  1225. 

  1226.             if (kData->param.data[k].midiCC > 0)

  1227.             {

  1228.                 double value = kData->param.ranges[k].normalizeValue(fParamBuffers[k]);

  1229.                 kData->event.portOut->writeControlEvent(0, kData->param.data[k].midiChannel, kEngineControlEventTypeParameter, kData->param.data[k].midiCC, value);

  1230.             }

  1231. 

  1232.         } // End of Control Output

  1233. 

  1234.         // --------------------------------------------------------------------------------------------------------

  1235. 

  1236.         kData->activeBefore = kData->active;

  1237.     }

  1238. 

  1239.     bool processSingle(float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1240.     {

  1241.         CARLA_ASSERT(outBuffer != nullptr);

  1242.         CARLA_ASSERT(frames > 0);

  1243. 

  1244.         if (outBuffer == nullptr)

  1245.             return false;

  1246.         if (frames == 0)

  1247.             return false;

  1248. 

  1249.         uint32_t i, k;

  1250. 

  1251.         // --------------------------------------------------------------------------------------------------------

  1252.         // Try lock, silence otherwise

  1253. 

  1254.         if (kData->engine->isOffline())

  1255.         {

  1256.             kData->singleMutex.lock();

  1257.         }

  1258.         else if (! kData->singleMutex.tryLock())

  1259.         {

  1260.             for (i=0; i < kData->audioOut.count; i++)

  1261.             {

  1262.                 for (k=0; k < frames; k++)

  1263.                     outBuffer[i][k+timeOffset] = 0.0f;

  1264.             }

  1265. 

  1266.             return false;

  1267.         }

  1268. 

  1269.         // --------------------------------------------------------------------------------------------------------

  1270.         // Fill plugin buffers and Run plugin

  1271. 

  1272.         if (kUses16Outs)

  1273.         {

  1274.             for (i=0; i < kData->audioOut.count; i++)

  1275.                 carla_zeroFloat(fAudio16Buffers[i], frames);

  1276. 

  1277.             fluid_synth_process(fSynth, frames, 0, nullptr, kData->audioOut.count, fAudio16Buffers);

  1278.         }

  1279.         else

  1280.             fluid_synth_write_float(fSynth, frames, outBuffer[0] + timeOffset, 0, 1, outBuffer[1] + timeOffset, 0, 1);

  1281. 

  1282.         // --------------------------------------------------------------------------------------------------------

  1283.         // Post-processing (volume and balance)

  1284. 

  1285.         {

  1286.             // note - balance not possible with kUses16Outs, so we can safely skip fAudioOutBuffers

  1287.             const bool doVolume  = (fHints & PLUGIN_CAN_VOLUME) > 0 && kData->postProc.volume != 1.0f;

  1288.             const bool doBalance = (fHints & PLUGIN_CAN_BALANCE) > 0 && (kData->postProc.balanceLeft != -1.0f || kData->postProc.balanceRight != 1.0f);

  1289. 

  1290.             float oldBufLeft[doBalance ? frames : 1];

  1291. 

  1292.             for (i=0; i < kData->audioOut.count; i++)

  1293.             {

  1294.                 // Balance

  1295.                 if (doBalance)

  1296.                 {

  1297.                     if (i % 2 == 0)

  1298.                         carla_copyFloat(oldBufLeft, outBuffer[i]+timeOffset, frames);

  1299. 

  1300.                     float balRangeL = (kData->postProc.balanceLeft  + 1.0f)/2.0f;

  1301.                     float balRangeR = (kData->postProc.balanceRight + 1.0f)/2.0f;

  1302. 

  1303.                     for (k=0; k < frames; k++)

  1304.                     {

  1305.                         if (i % 2 == 0)

  1306.                         {

  1307.                             // left

  1308.                             outBuffer[i][k+timeOffset]  = oldBufLeft[k]                * (1.0f - balRangeL);

  1309.                             outBuffer[i][k+timeOffset] += outBuffer[i+1][k+timeOffset] * (1.0f - balRangeR);

  1310.                         }

  1311.                         else

  1312.                         {

  1313.                             // right

  1314.                             outBuffer[i][k+timeOffset]  = outBuffer[i][k+timeOffset] * balRangeR;

  1315.                             outBuffer[i][k+timeOffset] += oldBufLeft[k]              * balRangeL;

  1316.                         }

  1317.                     }

  1318.                 }

  1319. 

  1320.                 // Volume

  1321.                 if (kUses16Outs)

  1322.                 {

  1323.                     for (k=0; k < frames; k++)

  1324.                         outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k] * kData->postProc.volume;

  1325.                 }

  1326.                 else if (doVolume)

  1327.                 {

  1328.                     for (k=0; k < frames; k++)

  1329.                         outBuffer[i][k+timeOffset] *= kData->postProc.volume;

  1330.                 }

  1331.             }

  1332. 

  1333.         } // End of Post-processing

  1334. 

  1335.         // --------------------------------------------------------------------------------------------------------

  1336. 

  1337.         kData->singleMutex.unlock();

  1338.         return true;

  1339.     }

  1340. 

  1341.     void bufferSizeChanged(const uint32_t newBufferSize)

  1342.     {

  1343.         if (! kUses16Outs)

  1344.             return;

  1345. 

  1346.         for (uint32_t i=0; i < kData->audioOut.count; i++)

  1347.         {

  1348.             if (fAudio16Buffers[i] != nullptr)

  1349.                 delete[] fAudio16Buffers[i];

  1350.             fAudio16Buffers[i] = new float[newBufferSize];

  1351.         }

  1352.     }

  1353. 

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

  1355.     // Cleanup

  1356. 

  1357.     void deleteBuffers()

  1358.     {

  1359.         carla_debug("FluidSynthPlugin::deleteBuffers() - start");

  1360. 

  1361.         if (fAudio16Buffers != nullptr)

  1362.         {

  1363.             for (uint32_t i=0; i < kData->audioOut.count; i++)

  1364.             {

  1365.                 if (fAudio16Buffers[i] != nullptr)

  1366.                 {

  1367.                     delete[] fAudio16Buffers[i];

  1368.                     fAudio16Buffers[i] = nullptr;

  1369.                 }

  1370.             }

  1371. 

  1372.             delete[] fAudio16Buffers;

  1373.             fAudio16Buffers = nullptr;

  1374.         }

  1375. 

  1376.         CarlaPlugin::deleteBuffers();

  1377. 

  1378.         carla_debug("FluidSynthPlugin::deleteBuffers() - end");

  1379.     }

  1380. 

  1381.     // -------------------------------------------------------------------

  1382. 

  1383.     bool init(const char* const filename, const char* const name, const char* const label)

  1384.     {

  1385.         CARLA_ASSERT(fSynth != nullptr);

  1386.         CARLA_ASSERT(filename != nullptr);

  1387.         CARLA_ASSERT(label != nullptr);

  1388. 

  1389.         // ---------------------------------------------------------------

  1390.         // first checks

  1391. 

  1392.         if (kData->engine == nullptr)

  1393.         {

  1394.             return false;

  1395.         }

  1396. 

  1397.         if (kData->client != nullptr)

  1398.         {

  1399.             kData->engine->setLastError("Plugin client is already registered");

  1400.             return false;

  1401.         }

  1402. 

  1403.         if (fSynth == nullptr)

  1404.         {

  1405.             kData->engine->setLastError("null synth");

  1406.             return false;

  1407.         }

  1408. 

  1409.         if (filename == nullptr)

  1410.         {

  1411.             kData->engine->setLastError("null filename");

  1412.             return false;

  1413.         }

  1414. 

  1415.         if (label == nullptr)

  1416.         {

  1417.             kData->engine->setLastError("null label");

  1418.             return false;

  1419.         }

  1420. 

  1421.         // ---------------------------------------------------------------

  1422.         // open soundfont

  1423. 

  1424.         fSynthId = fluid_synth_sfload(fSynth, filename, 0);

  1425. 

  1426.         if (fSynthId < 0)

  1427.         {

  1428.             kData->engine->setLastError("Failed to load SoundFont file");

  1429.             return false;

  1430.         }

  1431. 

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

  1433.         // get info

  1434. 

  1435.         fFilename = filename;

  1436.         fLabel    = label;

  1437. 

  1438.         if (name != nullptr)

  1439.             fName = kData->engine->getNewUniquePluginName(name);

  1440.         else

  1441.             fName = kData->engine->getNewUniquePluginName(label);

  1442. 

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

  1444.         // register client

  1445. 

  1446.         kData->client = kData->engine->addClient(this);

  1447. 

  1448.         if (kData->client == nullptr || ! kData->client->isOk())

  1449.         {

  1450.             kData->engine->setLastError("Failed to register plugin client");

  1451.             return false;

  1452.         }

  1453. 

  1454.         return true;

  1455.     }

  1456. 

  1457. private:

  1458.     enum FluidSynthInputParameters {

  1459.         FluidSynthReverbOnOff    = 0,

  1460.         FluidSynthReverbRoomSize = 1,

  1461.         FluidSynthReverbDamp     = 2,

  1462.         FluidSynthReverbLevel    = 3,

  1463.         FluidSynthReverbWidth    = 4,

  1464.         FluidSynthChorusOnOff    = 5,

  1465.         FluidSynthChorusNr       = 6,

  1466.         FluidSynthChorusLevel    = 7,

  1467.         FluidSynthChorusSpeedHz  = 8,

  1468.         FluidSynthChorusDepthMs  = 9,

  1469.         FluidSynthChorusType     = 10,

  1470.         FluidSynthPolyphony      = 11,

  1471.         FluidSynthInterpolation  = 12,

  1472.         FluidSynthVoiceCount     = 13,

  1473.         FluidSynthParametersMax  = 14

  1474.     };

  1475. 

  1476.     const bool kUses16Outs;

  1477. 

  1478.     CarlaString fLabel;

  1479. 

  1480.     fluid_settings_t* fSettings;

  1481.     fluid_synth_t* fSynth;

  1482.     int fSynthId;

  1483. 

  1484.     float** fAudio16Buffers;

  1485.     double  fParamBuffers[FluidSynthParametersMax];

  1486. 

  1487.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(FluidSynthPlugin)

  1488. };

  1489. 

  1490. CARLA_BACKEND_END_NAMESPACE

  1491. 

  1492. #else // WANT_FLUIDSYNTH

  1493. # warning fluidsynth not available (no SF2 support)

  1494. #endif

  1495. 

  1496. CARLA_BACKEND_START_NAMESPACE

  1497. 

  1498. CarlaPlugin* CarlaPlugin::newSF2(const Initializer& init, const bool use16Outs)

  1499. {

  1500.     carla_debug("CarlaPlugin::newSF2({%p, \"%s\", \"%s\", \"%s\"}, %s)", init.engine, init.filename, init.name, init.label, bool2str(use16Outs));

  1501. 

  1502. #ifdef WANT_FLUIDSYNTH

  1503.     if (! fluid_is_soundfont(init.filename))

  1504.     {

  1505.         init.engine->setLastError("Requested file is not a valid SoundFont");

  1506.         return nullptr;

  1507.     }

  1508. 

  1509.     if (init.engine->getProccessMode() == PROCESS_MODE_CONTINUOUS_RACK && use16Outs)

  1510.     {

  1511.         init.engine->setLastError("Carla's rack mode can only work with Stereo modules, please choose the 2-channel only SoundFont version");

  1512.         return nullptr;

  1513.     }

  1514. 

  1515.     FluidSynthPlugin* const plugin = new FluidSynthPlugin(init.engine, init.id,  use16Outs);

  1516. 

  1517.     if (! plugin->init(init.filename, init.name, init.label))

  1518.     {

  1519.         delete plugin;

  1520.         return nullptr;

  1521.     }

  1522. 

  1523.     plugin->reload();

  1524. 

  1525.     return plugin;

  1526. #else

  1527.     init.engine->setLastError("fluidsynth support not available");

  1528.     return nullptr;

  1529. 

  1530.     // unused

  1531.     (void)use16Outs;

  1532. #endif

  1533. }

  1534. 

  1535. CARLA_BACKEND_END_NAMESPACE