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Carla/source/backend/plugin/FluidSynthPlugin.cpp

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  1. /*

  2.  * Carla FluidSynth Plugin

  3.  * Copyright (C) 2011-2013 Filipe Coelho <falktx@falktx.com>

  4.  *

  5.  * This program is free software; you can redistribute it and/or

  6.  * modify it under the terms of the GNU General Public License as

  7.  * published by the Free Software Foundation; either version 2 of

  8.  * the License, or any later version.

  9.  *

  10.  * This program is distributed in the hope that it will be useful,

  11.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  12.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  13.  * GNU General Public License for more details.

  14.  *

  15.  * For a full copy of the GNU General Public License see the GPL.txt file

  16.  */

  17. 

  18. #include "CarlaPluginInternal.hpp"

  19. 

  20. #ifdef WANT_FLUIDSYNTH

  21. 

  22. #include <fluidsynth.h>

  23. 

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

  25. 

  26. CARLA_BACKEND_START_NAMESPACE

  27. 

  28. #if 0

  29. }

  30. #endif

  31. 

  32. #define FLUID_DEFAULT_POLYPHONY 64

  33. 

  34. class FluidSynthPlugin : public CarlaPlugin

  35. {

  36. public:

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

  38.         : CarlaPlugin(engine, id),

  39.           kUses16Outs(use16Outs),

  40.           fSettings(nullptr),

  41.           fSynth(nullptr),

  42.           fSynthId(-1),

  43.           fAudio16Buffers(nullptr),

  44.           fParamBuffers{0.0f}

  45.     {

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

  47. 

  48.         // create settings

  49.         fSettings = new_fluid_settings();

  50.         CARLA_ASSERT(fSettings != nullptr);

  51. 

  52.         // define settings

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

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

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

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

  57. 

  58.         // create synth

  59.         fSynth = new_fluid_synth(fSettings);

  60.         CARLA_ASSERT(fSynth != nullptr);

  61. 

  62. #ifdef FLUIDSYNTH_VERSION_NEW_API

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

  64. #endif

  65. 

  66.         // set default values

  67.         fluid_synth_set_reverb_on(fSynth, 0);

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

  69. 

  70.         fluid_synth_set_chorus_on(fSynth, 0);

  71.         fluid_synth_set_chorus(fSynth, FLUID_CHORUS_DEFAULT_N, FLUID_CHORUS_DEFAULT_LEVEL, FLUID_CHORUS_DEFAULT_SPEED, FLUID_CHORUS_DEFAULT_DEPTH, FLUID_CHORUS_DEFAULT_TYPE);

  72. 

  73.         fluid_synth_set_polyphony(fSynth, FLUID_DEFAULT_POLYPHONY);

  74. 

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

  76.             fluid_synth_set_interp_method(fSynth, i, FLUID_INTERP_DEFAULT);

  77.     }

  78. 

  79.     ~FluidSynthPlugin() override

  80.     {

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

  82. 

  83.         kData->singleMutex.lock();

  84.         kData->masterMutex.lock();

  85. 

  86.         if (kData->active)

  87.         {

  88.             deactivate();

  89.             kData->active = false;

  90.         }

  91. 

  92.         delete_fluid_synth(fSynth);

  93.         delete_fluid_settings(fSettings);

  94. 

  95.         clearBuffers();

  96.     }

  97. 

  98.     // -------------------------------------------------------------------

  99.     // Information (base)

  100. 

  101.     PluginType type() const override

  102.     {

  103.         return PLUGIN_SF2;

  104.     }

  105. 

  106.     PluginCategory category() override

  107.     {

  108.         return PLUGIN_CATEGORY_SYNTH;

  109.     }

  110. 

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

  112.     // Information (count)

  113. 

  114.     uint32_t parameterScalePointCount(const uint32_t parameterId) const override

  115.     {

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

  117. 

  118.         switch (parameterId)

  119.         {

  120.         case FluidSynthChorusType:

  121.             return 2;

  122.         case FluidSynthInterpolation:

  123.             return 4;

  124.         default:

  125.             return 0;

  126.         }

  127.     }

  128. 

  129.     // -------------------------------------------------------------------

  130.     // Information (current data)

  131. 

  132.     // nothing

  133. 

  134.     // -------------------------------------------------------------------

  135.     // Information (per-plugin data)

  136. 

  137.     unsigned int availableOptions() override

  138.     {

  139.         unsigned int options = 0x0;

  140. 

  141.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  142.         options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  143.         options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  144.         options |= PLUGIN_OPTION_SEND_PITCHBEND;

  145.         options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  146. 

  147.         return options;

  148.     }

  149. 

  150.     float getParameterValue(const uint32_t parameterId) override

  151.     {

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

  153. 

  154.         return fParamBuffers[parameterId];

  155.     }

  156. 

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

  158.     {

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

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

  161. 

  162.         switch (parameterId)

  163.         {

  164.         case FluidSynthChorusType:

  165.             switch (scalePointId)

  166.             {

  167.             case 0:

  168.                 return FLUID_CHORUS_MOD_SINE;

  169.             case 1:

  170.                 return FLUID_CHORUS_MOD_TRIANGLE;

  171.             default:

  172.                 return FLUID_CHORUS_DEFAULT_TYPE;

  173.             }

  174.         case FluidSynthInterpolation:

  175.             switch (scalePointId)

  176.             {

  177.             case 0:

  178.                 return FLUID_INTERP_NONE;

  179.             case 1:

  180.                 return FLUID_INTERP_LINEAR;

  181.             case 2:

  182.                 return FLUID_INTERP_4THORDER;

  183.             case 3:

  184.                 return FLUID_INTERP_7THORDER;

  185.             default:

  186.                 return FLUID_INTERP_DEFAULT;

  187.             }

  188.         default:

  189.             return 0.0f;

  190.         }

  191.     }

  192. 

  193.     void getLabel(char* const strBuf) override

  194.     {

  195.         if (fLabel.isNotEmpty())

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

  197.         else

  198.             CarlaPlugin::getLabel(strBuf);

  199.     }

  200. 

  201.     void getMaker(char* const strBuf) override

  202.     {

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

  204.     }

  205. 

  206.     void getCopyright(char* const strBuf) override

  207.     {

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

  209.     }

  210. 

  211.     void getRealName(char* const strBuf) override

  212.     {

  213.         getLabel(strBuf);

  214.     }

  215. 

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

  217.     {

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

  219. 

  220.         switch (parameterId)

  221.         {

  222.         case FluidSynthReverbOnOff:

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

  224.             break;

  225.         case FluidSynthReverbRoomSize:

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

  227.             break;

  228.         case FluidSynthReverbDamp:

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

  230.             break;

  231.         case FluidSynthReverbLevel:

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

  233.             break;

  234.         case FluidSynthReverbWidth:

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

  236.             break;

  237.         case FluidSynthChorusOnOff:

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

  239.             break;

  240.         case FluidSynthChorusNr:

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

  242.             break;

  243.         case FluidSynthChorusLevel:

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

  245.             break;

  246.         case FluidSynthChorusSpeedHz:

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

  248.             break;

  249.         case FluidSynthChorusDepthMs:

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

  251.             break;

  252.         case FluidSynthChorusType:

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

  254.             break;

  255.         case FluidSynthPolyphony:

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

  257.             break;

  258.         case FluidSynthInterpolation:

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

  260.             break;

  261.         case FluidSynthVoiceCount:

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

  263.             break;

  264.         default:

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

  266.             break;

  267.         }

  268.     }

  269. 

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

  271.     {

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

  273. 

  274.         switch (parameterId)

  275.         {

  276.         case FluidSynthChorusSpeedHz:

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

  278.             break;

  279.         case FluidSynthChorusDepthMs:

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

  281.             break;

  282.         default:

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

  284.             break;

  285.         }

  286.     }

  287. 

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

  289.     {

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

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

  292. 

  293.         switch (parameterId)

  294.         {

  295.         case FluidSynthChorusType:

  296.             switch (scalePointId)

  297.             {

  298.             case 0:

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

  300.                 return;

  301.             case 1:

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

  303.                 return;

  304.             }

  305.         case FluidSynthInterpolation:

  306.             switch (scalePointId)

  307.             {

  308.             case 0:

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

  310.                 return;

  311.             case 1:

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

  313.                 return;

  314.             case 2:

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

  316.                 return;

  317.             case 3:

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

  319.                 return;

  320.             }

  321.         }

  322. 

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

  324.     }

  325. 

  326.     // -------------------------------------------------------------------

  327.     // Set data (state)

  328. 

  329.     // nothing

  330. 

  331.     // -------------------------------------------------------------------

  332.     // Set data (internal stuff)

  333. 

  334.     // nothing

  335. 

  336.     // -------------------------------------------------------------------

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

  338. 

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

  340.     {

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

  342. 

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

  344.         fParamBuffers[parameterId] = fixedValue;

  345. 

  346.         {

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

  348. 

  349.             switch (parameterId)

  350.             {

  351.             case FluidSynthReverbOnOff:

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

  353.                 break;

  354. 

  355.             case FluidSynthReverbRoomSize:

  356.             case FluidSynthReverbDamp:

  357.             case FluidSynthReverbLevel:

  358.             case FluidSynthReverbWidth:

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

  360.                 break;

  361. 

  362.             case FluidSynthChorusOnOff:

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

  364.                 break;

  365. 

  366.             case FluidSynthChorusNr:

  367.             case FluidSynthChorusLevel:

  368.             case FluidSynthChorusSpeedHz:

  369.             case FluidSynthChorusDepthMs:

  370.             case FluidSynthChorusType:

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

  372.                 break;

  373. 

  374.             case FluidSynthPolyphony:

  375.                 fluid_synth_set_polyphony(fSynth, value);

  376.                 break;

  377. 

  378.             case FluidSynthInterpolation:

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

  380.                     fluid_synth_set_interp_method(fSynth, i, value);

  381.                 break;

  382. 

  383.             default:

  384.                 break;

  385.             }

  386.         }

  387. 

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

  389.     }

  390. 

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

  392.     {

  393.         CARLA_ASSERT(fSynth != nullptr);

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

  395. 

  396.         if (index < -1)

  397.             index = -1;

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

  399.             return;

  400. 

  401.         if (kData->ctrlChannel < 0 || kData->ctrlChannel >= MAX_MIDI_CHANNELS)

  402.             return;

  403. 

  404.         if (index >= 0)

  405.         {

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

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

  408. 

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

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

  411.         }

  412. 

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

  414.     }

  415. 

  416.     // -------------------------------------------------------------------

  417.     // Set gui stuff

  418. 

  419.     // nothing

  420. 

  421.     // -------------------------------------------------------------------

  422.     // Plugin state

  423. 

  424.     void reload() override

  425.     {

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

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

  428.         CARLA_ASSERT(fSynth != nullptr);

  429. 

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

  431.             return;

  432.         if (fSynth == nullptr)

  433.             return;

  434. 

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

  436. 

  437.         // Safely disable plugin for reload

  438.         const ScopedDisabler sd(this);

  439. 

  440.         if (kData->active)

  441.             deactivate();

  442. 

  443.         clearBuffers();

  444. 

  445.         uint32_t aOuts, params, j;

  446.         aOuts  = kUses16Outs ? 32 : 2;

  447.         params = FluidSynthParametersMax;

  448. 

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

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

  451. 

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

  453.         CarlaString portName;

  454. 

  455.         // ---------------------------------------

  456.         // Audio Outputs

  457. 

  458.         if (kUses16Outs)

  459.         {

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

  461.             {

  462.                 portName.clear();

  463. 

  464.                 if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  465.                 {

  466.                     portName  = fName;

  467.                     portName += ":";

  468.                 }

  469. 

  470.                 portName += "out-";

  471. 

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

  473.                     portName += "0";

  474. 

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

  476. 

  477.                 if (j % 2 == 0)

  478.                     portName += "L";

  479.                 else

  480.                     portName += "R";

  481. 

  482.                 portName.truncate(portNameSize);

  483. 

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

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

  486.             }

  487. 

  488.             fAudio16Buffers = new float*[aOuts];

  489. 

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

  491.                 fAudio16Buffers[j] = nullptr;

  492.         }

  493.         else

  494.         {

  495.             // out-left

  496.             portName.clear();

  497. 

  498.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  499.             {

  500.                 portName  = fName;

  501.                 portName += ":";

  502.             }

  503. 

  504.             portName += "out-left";

  505.             portName.truncate(portNameSize);

  506. 

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

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

  509. 

  510.             // out-right

  511.             portName.clear();

  512. 

  513.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  514.             {

  515.                 portName  = fName;

  516.                 portName += ":";

  517.             }

  518. 

  519.             portName += "out-right";

  520.             portName.truncate(portNameSize);

  521. 

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

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

  524.         }

  525. 

  526.         // ---------------------------------------

  527.         // Event Input

  528. 

  529.         {

  530.             portName.clear();

  531. 

  532.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  533.             {

  534.                 portName  = fName;

  535.                 portName += ":";

  536.             }

  537. 

  538.             portName += "event-in";

  539.             portName.truncate(portNameSize);

  540. 

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

  542.         }

  543. 

  544.         // ---------------------------------------

  545.         // Event Output

  546. 

  547.         {

  548.             portName.clear();

  549. 

  550.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  551.             {

  552.                 portName  = fName;

  553.                 portName += ":";

  554.             }

  555. 

  556.             portName += "event-out";

  557.             portName.truncate(portNameSize);

  558. 

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

  560.         }

  561. 

  562.         // ----------------------

  563.         j = FluidSynthReverbOnOff;

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

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

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

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

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

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

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

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

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

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

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

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

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

  577. 

  578.         // ----------------------

  579.         j = FluidSynthReverbRoomSize;

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

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

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

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

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

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

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

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

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

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

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

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

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

  593. 

  594.         // ----------------------

  595.         j = FluidSynthReverbDamp;

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

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

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

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

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

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

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

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

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

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

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

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

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

  609. 

  610.         // ----------------------

  611.         j = FluidSynthReverbLevel;

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

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

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

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

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

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

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

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

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

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

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

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

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

  625. 

  626.         // ----------------------

  627.         j = FluidSynthReverbWidth;

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

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

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

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

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

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

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

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

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

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

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

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

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

  641. 

  642.         // ----------------------

  643.         j = FluidSynthChorusOnOff;

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

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

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

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

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

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

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

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

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

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

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

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

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

  657. 

  658.         // ----------------------

  659.         j = FluidSynthChorusNr;

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

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

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

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

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

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

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

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

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

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

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

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

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

  673. 

  674.         // ----------------------

  675.         j = FluidSynthChorusLevel;

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

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

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

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

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

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

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

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

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

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

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

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

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

  689. 

  690.         // ----------------------

  691.         j = FluidSynthChorusSpeedHz;

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

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

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

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

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

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

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

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

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

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

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

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

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

  705. 

  706.         // ----------------------

  707.         j = FluidSynthChorusDepthMs;

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

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

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

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

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

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

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

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

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

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

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

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

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

  721. 

  722.         // ----------------------

  723.         j = FluidSynthChorusType;

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

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

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

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

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

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

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

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

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

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

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

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

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

  737. 

  738.         // ----------------------

  739.         j = FluidSynthPolyphony;

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

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

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

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

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

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

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

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

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

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

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

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

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

  753. 

  754.         // ----------------------

  755.         j = FluidSynthInterpolation;

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

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

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

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

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

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

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

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

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

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

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

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

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

  769. 

  770.         // ----------------------

  771.         j = FluidSynthVoiceCount;

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

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

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

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

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

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

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

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

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

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

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

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

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

  785. 

  786.         // ---------------------------------------

  787. 

  788.         // plugin hints

  789.         fHints  = 0x0;

  790.         fHints |= PLUGIN_IS_SYNTH;

  791.         fHints |= PLUGIN_CAN_VOLUME;

  792.         fHints |= PLUGIN_CAN_BALANCE;

  793. 

  794.         // extra plugin hints

  795.         kData->extraHints  = 0x0;

  796.         kData->extraHints |= PLUGIN_HINT_HAS_MIDI_IN;

  797.         kData->extraHints |= PLUGIN_HINT_CAN_RUN_RACK;

  798. 

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

  800.         reloadPrograms(true);

  801. 

  802.         if (kData->active)

  803.             activate();

  804. 

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

  806.     }

  807. 

  808.     void reloadPrograms(const bool init) override

  809.     {

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

  811. 

  812.         // Delete old programs

  813.         kData->midiprog.clear();

  814. 

  815.         // Query new programs

  816.         uint32_t count = 0;

  817.         fluid_sfont_t* f_sfont;

  818.         fluid_preset_t f_preset;

  819.         bool hasDrums = false;

  820. 

  821.         f_sfont = fluid_synth_get_sfont_by_id(fSynth, fSynthId);

  822. 

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

  824.         f_sfont->iteration_start(f_sfont);

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

  826.             count += 1;

  827. 

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

  829.         CARLA_ASSERT(count > 0);

  830. 

  831.         if (count == 0)

  832.             return;

  833. 

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

  835. 

  836.         // Update data

  837.         uint32_t i = 0;

  838.         f_sfont->iteration_start(f_sfont);

  839. 

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

  841.         {

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

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

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

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

  846. 

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

  848.                 hasDrums = true;

  849. 

  850.             ++i;

  851.         }

  852. 

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

  854. 

  855. #ifndef BUILD_BRIDGE

  856.         // Update OSC Names

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

  858.         {

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

  860. 

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

  862.                 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);

  863.         }

  864. #endif

  865. 

  866.         if (init)

  867.         {

  868.             fluid_synth_program_reset(fSynth);

  869. 

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

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

  872.             {

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

  874. #ifdef FLUIDSYNTH_VERSION_NEW_API

  875.                 fluid_synth_set_channel_type(fSynth, i, CHANNEL_TYPE_MELODIC);

  876. #endif

  877.             }

  878. 

  879.             if (hasDrums)

  880.             {

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

  882. #ifdef FLUIDSYNTH_VERSION_NEW_API

  883.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_DRUM);

  884. #endif

  885.             }

  886.             else

  887.             {

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

  889. #ifdef FLUIDSYNTH_VERSION_NEW_API

  890.                 fluid_synth_set_channel_type(fSynth, 9, CHANNEL_TYPE_MELODIC);

  891. #endif

  892.             }

  893. 

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

  895.         }

  896.         else

  897.         {

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

  899.         }

  900.     }

  901. 

  902.     // -------------------------------------------------------------------

  903.     // Plugin processing

  904. 

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

  906.     {

  907.         uint32_t i, k;

  908. 

  909.         // --------------------------------------------------------------------------------------------------------

  910.         // Check if active

  911. 

  912.         if (! kData->active)

  913.         {

  914.             // disable any output sound

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

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

  917. 

  918.             return;

  919.         }

  920. 

  921.         // --------------------------------------------------------------------------------------------------------

  922.         // Check if needs reset

  923. 

  924.         if (kData->needsReset)

  925.         {

  926.             if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  927.             {

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

  929.                 {

  930. #ifdef FLUIDSYNTH_VERSION_NEW_API

  931.                     fluid_synth_all_notes_off(fSynth, c);

  932.                     fluid_synth_all_sounds_off(fSynth, c);

  933. #else

  934.                     fluid_synth_cc(fSynth, c, MIDI_CONTROL_ALL_SOUND_OFF, 0);

  935.                     fluid_synth_cc(fSynth, c, MIDI_CONTROL_ALL_NOTES_OFF, 0);

  936. #endif

  937.                 }

  938.             }

  939.             else if (kData->ctrlChannel >= 0 && kData->ctrlChannel < MAX_MIDI_CHANNELS)

  940.             {

  941.                 for (k=0; k < MAX_MIDI_NOTE; ++k)

  942.                     fluid_synth_noteoff(fSynth, kData->ctrlChannel, k);

  943.             }

  944. 

  945.             kData->needsReset = false;

  946.         }

  947. 

  948.         // --------------------------------------------------------------------------------------------------------

  949.         // Event Input and Processing

  950. 

  951.         {

  952.             // ----------------------------------------------------------------------------------------------------

  953.             // MIDI Input (External)

  954. 

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

  956.             {

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

  958.                 {

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

  960. 

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

  962. 

  963.                     if (note.velo > 0)

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

  965.                     else

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

  967.                 }

  968. 

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

  970. 

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

  972. 

  973.             // ----------------------------------------------------------------------------------------------------

  974.             // Event Input (System)

  975. 

  976.             bool allNotesOffSent = false;

  977. 

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

  979.             uint32_t timeOffset = 0;

  980. 

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

  982. 

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

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

  985. 

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

  987.             {

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

  989. 

  990.                 time = event.time;

  991. 

  992.                 if (time >= frames)

  993.                     continue;

  994. 

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

  996. 

  997.                 if (time > timeOffset)

  998.                 {

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

  1000.                     {

  1001.                         timeOffset = time;

  1002. 

  1003.                         if (kData->midiprog.current >= 0 && kData->midiprog.count > 0 && kData->ctrlChannel >= 0 && kData->ctrlChannel < 16)

  1004.                             nextBankIds[kData->ctrlChannel] = kData->midiprog.data[kData->midiprog.current].bank;

  1005.                     }

  1006.                 }

  1007. 

  1008.                 // Control change

  1009.                 switch (event.type)

  1010.                 {

  1011.                 case kEngineEventTypeNull:

  1012.                     break;

  1013. 

  1014.                 case kEngineEventTypeControl:

  1015.                 {

  1016.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1017. 

  1018.                     switch (ctrlEvent.type)

  1019.                     {

  1020.                     case kEngineControlEventTypeNull:

  1021.                         break;

  1022. 

  1023.                     case kEngineControlEventTypeParameter:

  1024.                     {

  1025. #ifndef BUILD_BRIDGE

  1026.                         // Control backend stuff

  1027.                         if (event.channel == kData->ctrlChannel)

  1028.                         {

  1029.                             float value;

  1030. 

  1031.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (fHints & PLUGIN_CAN_DRYWET) > 0)

  1032.                             {

  1033.                                 value = ctrlEvent.value;

  1034.                                 setDryWet(value, false, false);

  1035.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1036.                                 continue;

  1037.                             }

  1038. 

  1039.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (fHints & PLUGIN_CAN_VOLUME) > 0)

  1040.                             {

  1041.                                 value = ctrlEvent.value*127.0f/100.0f;

  1042.                                 setVolume(value, false, false);

  1043.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1044.                                 continue;

  1045.                             }

  1046. 

  1047.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (fHints & PLUGIN_CAN_BALANCE) > 0)

  1048.                             {

  1049.                                 float left, right;

  1050.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1051. 

  1052.                                 if (value < 0.0f)

  1053.                                 {

  1054.                                     left  = -1.0f;

  1055.                                     right = (value*2.0f)+1.0f;

  1056.                                 }

  1057.                                 else if (value > 0.0f)

  1058.                                 {

  1059.                                     left  = (value*2.0f)-1.0f;

  1060.                                     right = 1.0f;

  1061.                                 }

  1062.                                 else

  1063.                                 {

  1064.                                     left  = -1.0f;

  1065.                                     right = 1.0f;

  1066.                                 }

  1067. 

  1068.                                 setBalanceLeft(left, false, false);

  1069.                                 setBalanceRight(right, false, false);

  1070.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1071.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1072.                                 continue;

  1073.                             }

  1074.                         }

  1075. #endif

  1076. 

  1077.                         // Control plugin parameters

  1078.                         for (k=0; k < kData->param.count; ++k)

  1079.                         {

  1080.                             if (kData->param.data[k].midiChannel != event.channel)

  1081.                                 continue;

  1082.                             if (kData->param.data[k].midiCC != ctrlEvent.param)

  1083.                                 continue;

  1084.                             if (kData->param.data[k].type != PARAMETER_INPUT)

  1085.                                 continue;

  1086.                             if ((kData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1087.                                 continue;

  1088. 

  1089.                             float value;

  1090. 

  1091.                             if (kData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1092.                             {

  1093.                                 value = (ctrlEvent.value < 0.5f) ? kData->param.ranges[k].min : kData->param.ranges[k].max;

  1094.                             }

  1095.                             else

  1096.                             {

  1097.                                 value = kData->param.ranges[i].unnormalizeValue(ctrlEvent.value);

  1098. 

  1099.                                 if (kData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1100.                                     value = std::rint(value);

  1101.                             }

  1102. 

  1103.                             setParameterValue(k, value, false, false, false);

  1104.                             postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1105.                         }

  1106. 

  1107.                         break;

  1108.                     }

  1109. 

  1110.                     case kEngineControlEventTypeMidiBank:

  1111.                         if (event.channel < 16 && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1112.                             nextBankIds[event.channel] = ctrlEvent.param;

  1113.                         break;

  1114. 

  1115.                     case kEngineControlEventTypeMidiProgram:

  1116.                         if (event.channel < 16 && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1117.                         {

  1118.                             const uint32_t bankId = nextBankIds[event.channel];

  1119.                             const uint32_t progId = ctrlEvent.param;

  1120. 

  1121.                             for (k=0; k < kData->midiprog.count; ++k)

  1122.                             {

  1123.                                 if (kData->midiprog.data[k].bank == bankId && kData->midiprog.data[k].program == progId)

  1124.                                 {

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

  1126.                                     {

  1127.                                         setMidiProgram(k, false, false, false);

  1128.                                         postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0f);

  1129.                                     }

  1130.                                     else

  1131.                                         fluid_synth_program_select(fSynth, event.channel, fSynthId, bankId, progId);

  1132. 

  1133.                                     break;

  1134.                                 }

  1135.                             }

  1136.                         }

  1137.                         break;

  1138. 

  1139.                     case kEngineControlEventTypeAllSoundOff:

  1140.                         if (event.channel == kData->ctrlChannel)

  1141.                         {

  1142.                             if (! allNotesOffSent)

  1143.                             {

  1144.                                 allNotesOffSent = true;

  1145.                                 sendMidiAllNotesOffToCallback();

  1146.                             }

  1147. 

  1148.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 0.0f);

  1149.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 1.0f);

  1150. 

  1151.                             if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1152.                             {

  1153. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1154.                                 fluid_synth_all_sounds_off(fSynth, event.channel);

  1155. #else

  1156.                                 fluid_synth_cc(f_synth, event.channel, MIDI_CONTROL_ALL_SOUND_OFF, 0);

  1157. #endif

  1158.                             }

  1159.                         }

  1160.                         break;

  1161. 

  1162.                     case kEngineControlEventTypeAllNotesOff:

  1163.                         if (event.channel == kData->ctrlChannel)

  1164.                         {

  1165.                             if (! allNotesOffSent)

  1166.                             {

  1167.                                 allNotesOffSent = true;

  1168.                                 sendMidiAllNotesOffToCallback();

  1169.                             }

  1170. 

  1171.                             if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1172.                             {

  1173. #ifdef FLUIDSYNTH_VERSION_NEW_API

  1174.                                 fluid_synth_all_notes_off(fSynth, event.channel);

  1175. #else

  1176.                                 fluid_synth_cc(f_synth, event.channel, MIDI_CONTROL_ALL_NOTES_OFF, 0);

  1177. #endif

  1178.                             }

  1179.                         }

  1180.                         break;

  1181.                     }

  1182. 

  1183.                     break;

  1184.                 }

  1185. 

  1186.                 case kEngineEventTypeMidi:

  1187.                 {

  1188.                     const EngineMidiEvent& midiEvent(event.midi);

  1189. 

  1190.                     uint8_t status  = MIDI_GET_STATUS_FROM_DATA(midiEvent.data);

  1191.                     uint8_t channel = event.channel;

  1192. 

  1193.                     // Fix bad note-off

  1194.                     if (MIDI_IS_STATUS_NOTE_ON(status) && midiEvent.data[2] == 0)

  1195.                         status -= 0x10;

  1196. 

  1197.                     if (MIDI_IS_STATUS_NOTE_OFF(status))

  1198.                     {

  1199.                         const uint8_t note = midiEvent.data[1];

  1200. 

  1201.                         fluid_synth_noteoff(fSynth, channel, note);

  1202. 

  1203.                         postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0f);

  1204.                     }

  1205.                     else if (MIDI_IS_STATUS_NOTE_ON(status))

  1206.                     {

  1207.                         const uint8_t note = midiEvent.data[1];

  1208.                         const uint8_t velo = midiEvent.data[2];

  1209. 

  1210.                         fluid_synth_noteon(fSynth, channel, note, velo);

  1211. 

  1212.                         postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1213.                     }

  1214.                     else if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) != 0)

  1215.                     {

  1216.                         //const uint8_t note     = midiEvent.data[1];

  1217.                         //const uint8_t pressure = midiEvent.data[2];

  1218. 

  1219.                         // TODO, not in fluidsynth API

  1220.                     }

  1221.                     else if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (fOptions & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0)

  1222.                     {

  1223.                         const uint8_t control = midiEvent.data[1];

  1224.                         const uint8_t value   = midiEvent.data[2];

  1225. 

  1226.                         fluid_synth_cc(fSynth, channel, control, value);

  1227.                     }

  1228.                     else if (MIDI_IS_STATUS_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) != 0)

  1229.                     {

  1230.                         const uint8_t pressure = midiEvent.data[1];

  1231. 

  1232.                         fluid_synth_channel_pressure(fSynth, channel, pressure);;

  1233.                     }

  1234.                     else if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (fOptions & PLUGIN_OPTION_SEND_PITCHBEND) != 0)

  1235.                     {

  1236.                         const uint8_t lsb = midiEvent.data[1];

  1237.                         const uint8_t msb = midiEvent.data[2];

  1238. 

  1239.                         fluid_synth_pitch_bend(fSynth, channel, (msb << 7) | lsb);

  1240.                     }

  1241. 

  1242.                     break;

  1243.                 }

  1244.                 }

  1245.             }

  1246. 

  1247.             kData->postRtEvents.trySplice();

  1248. 

  1249.             if (frames > timeOffset)

  1250.                 processSingle(outBuffer, frames - timeOffset, timeOffset);

  1251. 

  1252.         } // End of Event Input and Processing

  1253. 

  1254.         CARLA_PROCESS_CONTINUE_CHECK;

  1255. 

  1256.         // --------------------------------------------------------------------------------------------------------

  1257.         // Control Output

  1258. 

  1259.         {

  1260.             k = FluidSynthVoiceCount;

  1261.             fParamBuffers[k] = fluid_synth_get_active_voice_count(fSynth);

  1262.             kData->param.ranges[k].fixValue(fParamBuffers[k]);

  1263. 

  1264.             if (kData->param.data[k].midiCC > 0)

  1265.             {

  1266.                 float value(kData->param.ranges[k].normalizeValue(fParamBuffers[k]));

  1267.                 kData->event.portOut->writeControlEvent(0, kData->param.data[k].midiChannel, kEngineControlEventTypeParameter, kData->param.data[k].midiCC, value);

  1268.             }

  1269. 

  1270.         } // End of Control Output

  1271.     }

  1272. 

  1273.     bool processSingle(float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1274.     {

  1275.         CARLA_ASSERT(outBuffer != nullptr);

  1276.         CARLA_ASSERT(frames > 0);

  1277. 

  1278.         if (outBuffer == nullptr)

  1279.             return false;

  1280.         if (frames == 0)

  1281.             return false;

  1282. 

  1283.         uint32_t i, k;

  1284. 

  1285.         // --------------------------------------------------------------------------------------------------------

  1286.         // Try lock, silence otherwise

  1287. 

  1288.         if (kData->engine->isOffline())

  1289.         {

  1290.             kData->singleMutex.lock();

  1291.         }

  1292.         else if (! kData->singleMutex.tryLock())

  1293.         {

  1294.             for (i=0; i < kData->audioOut.count; ++i)

  1295.             {

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

  1297.                     outBuffer[i][k+timeOffset] = 0.0f;

  1298.             }

  1299. 

  1300.             return false;

  1301.         }

  1302. 

  1303.         // --------------------------------------------------------------------------------------------------------

  1304.         // Fill plugin buffers and Run plugin

  1305. 

  1306.         if (kUses16Outs)

  1307.         {

  1308.             for (i=0; i < kData->audioOut.count; ++i)

  1309.                 carla_zeroFloat(fAudio16Buffers[i], frames);

  1310. 

  1311.             fluid_synth_process(fSynth, frames, 0, nullptr, kData->audioOut.count, fAudio16Buffers);

  1312.         }

  1313.         else

  1314.             fluid_synth_write_float(fSynth, frames, outBuffer[0] + timeOffset, 0, 1, outBuffer[1] + timeOffset, 0, 1);

  1315. 

  1316. #ifndef BUILD_BRIDGE

  1317.         // --------------------------------------------------------------------------------------------------------

  1318.         // Post-processing (volume and balance)

  1319. 

  1320.         {

  1321.             // note - balance not possible with kUses16Outs, so we can safely skip fAudioOutBuffers

  1322.             const bool doVolume  = (fHints & PLUGIN_CAN_VOLUME) > 0 && kData->postProc.volume != 1.0f;

  1323.             const bool doBalance = (fHints & PLUGIN_CAN_BALANCE) > 0 && (kData->postProc.balanceLeft != -1.0f || kData->postProc.balanceRight != 1.0f);

  1324. 

  1325.             float oldBufLeft[doBalance ? frames : 1];

  1326. 

  1327.             for (i=0; i < kData->audioOut.count; ++i)

  1328.             {

  1329.                 // Balance

  1330.                 if (doBalance)

  1331.                 {

  1332.                     if (i % 2 == 0)

  1333.                         carla_copyFloat(oldBufLeft, outBuffer[i]+timeOffset, frames);

  1334. 

  1335.                     float balRangeL = (kData->postProc.balanceLeft  + 1.0f)/2.0f;

  1336.                     float balRangeR = (kData->postProc.balanceRight + 1.0f)/2.0f;

  1337. 

  1338.                     for (k=0; k < frames; ++k)

  1339.                     {

  1340.                         if (i % 2 == 0)

  1341.                         {

  1342.                             // left

  1343.                             outBuffer[i][k+timeOffset]  = oldBufLeft[k]                * (1.0f - balRangeL);

  1344.                             outBuffer[i][k+timeOffset] += outBuffer[i+1][k+timeOffset] * (1.0f - balRangeR);

  1345.                         }

  1346.                         else

  1347.                         {

  1348.                             // right

  1349.                             outBuffer[i][k+timeOffset]  = outBuffer[i][k+timeOffset] * balRangeR;

  1350.                             outBuffer[i][k+timeOffset] += oldBufLeft[k]              * balRangeL;

  1351.                         }

  1352.                     }

  1353.                 }

  1354. 

  1355.                 // Volume

  1356.                 if (kUses16Outs)

  1357.                 {

  1358.                     for (k=0; k < frames; ++k)

  1359.                         outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k] * kData->postProc.volume;

  1360.                 }

  1361.                 else if (doVolume)

  1362.                 {

  1363.                     for (k=0; k < frames; ++k)

  1364.                         outBuffer[i][k+timeOffset] *= kData->postProc.volume;

  1365.                 }

  1366.             }

  1367. 

  1368.         } // End of Post-processing

  1369. #else

  1370.         if (kUses16Outs)

  1371.         {

  1372.             for (i=0; i < kData->audioOut.count; ++i)

  1373.             {

  1374.                 for (k=0; k < frames; ++k)

  1375.                     outBuffer[i][k+timeOffset] = fAudio16Buffers[i][k];

  1376.             }

  1377.         }

  1378. #endif

  1379. 

  1380.         // --------------------------------------------------------------------------------------------------------

  1381. 

  1382.         kData->singleMutex.unlock();

  1383.         return true;

  1384.     }

  1385. 

  1386.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1387.     {

  1388.         if (! kUses16Outs)

  1389.             return;

  1390. 

  1391.         for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1392.         {

  1393.             if (fAudio16Buffers[i] != nullptr)

  1394.                 delete[] fAudio16Buffers[i];

  1395.             fAudio16Buffers[i] = new float[newBufferSize];

  1396.         }

  1397.     }

  1398. 

  1399.     // -------------------------------------------------------------------

  1400.     // Plugin buffers

  1401. 

  1402.     void clearBuffers() override

  1403.     {

  1404.         carla_debug("FluidSynthPlugin::clearBuffers() - start");

  1405. 

  1406.         if (fAudio16Buffers != nullptr)

  1407.         {

  1408.             for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1409.             {

  1410.                 if (fAudio16Buffers[i] != nullptr)

  1411.                 {

  1412.                     delete[] fAudio16Buffers[i];

  1413.                     fAudio16Buffers[i] = nullptr;

  1414.                 }

  1415.             }

  1416. 

  1417.             delete[] fAudio16Buffers;

  1418.             fAudio16Buffers = nullptr;

  1419.         }

  1420. 

  1421.         CarlaPlugin::clearBuffers();

  1422. 

  1423.         carla_debug("FluidSynthPlugin::clearBuffers() - end");

  1424.     }

  1425. 

  1426.     // -------------------------------------------------------------------

  1427. 

  1428.     const void* getExtraStuff() override

  1429.     {

  1430.         return kUses16Outs ? (const void*)0x1 : nullptr;

  1431.     }

  1432. 

  1433.     bool init(const char* const filename, const char* const name, const char* const label)

  1434.     {

  1435.         CARLA_ASSERT(fSynth != nullptr);

  1436.         CARLA_ASSERT(filename != nullptr);

  1437.         CARLA_ASSERT(label != nullptr);

  1438. 

  1439.         // ---------------------------------------------------------------

  1440.         // first checks

  1441. 

  1442.         if (kData->engine == nullptr)

  1443.         {

  1444.             return false;

  1445.         }

  1446. 

  1447.         if (kData->client != nullptr)

  1448.         {

  1449.             kData->engine->setLastError("Plugin client is already registered");

  1450.             return false;

  1451.         }

  1452. 

  1453.         if (fSynth == nullptr)

  1454.         {

  1455.             kData->engine->setLastError("null synth");

  1456.             return false;

  1457.         }

  1458. 

  1459.         if (filename == nullptr)

  1460.         {

  1461.             kData->engine->setLastError("null filename");

  1462.             return false;

  1463.         }

  1464. 

  1465.         if (label == nullptr)

  1466.         {

  1467.             kData->engine->setLastError("null label");

  1468.             return false;

  1469.         }

  1470. 

  1471.         // ---------------------------------------------------------------

  1472.         // open soundfont

  1473. 

  1474.         fSynthId = fluid_synth_sfload(fSynth, filename, 0);

  1475. 

  1476.         if (fSynthId < 0)

  1477.         {

  1478.             kData->engine->setLastError("Failed to load SoundFont file");

  1479.             return false;

  1480.         }

  1481. 

  1482.         // ---------------------------------------------------------------

  1483.         // get info

  1484. 

  1485.         fFilename = filename;

  1486.         fLabel    = label;

  1487. 

  1488.         if (name != nullptr)

  1489.             fName = kData->engine->getUniquePluginName(name);

  1490.         else

  1491.             fName = kData->engine->getUniquePluginName(label);

  1492. 

  1493.         // ---------------------------------------------------------------

  1494.         // register client

  1495. 

  1496.         kData->client = kData->engine->addClient(this);

  1497. 

  1498.         if (kData->client == nullptr || ! kData->client->isOk())

  1499.         {

  1500.             kData->engine->setLastError("Failed to register plugin client");

  1501.             return false;

  1502.         }

  1503. 

  1504.         // ---------------------------------------------------------------

  1505.         // load plugin settings

  1506. 

  1507.         {

  1508.             // set default options

  1509.             fOptions = 0x0;

  1510. 

  1511.             fOptions |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1512.             fOptions |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1513.             fOptions |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  1514.             fOptions |= PLUGIN_OPTION_SEND_PITCHBEND;

  1515.             fOptions |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1516. 

  1517.             // load settings

  1518.             kData->idStr  = "SF2/";

  1519.             kData->idStr += label;

  1520.             fOptions = kData->loadSettings(fOptions, availableOptions());

  1521.         }

  1522. 

  1523.         return true;

  1524.     }

  1525. 

  1526. private:

  1527.     enum FluidSynthInputParameters {

  1528.         FluidSynthReverbOnOff    = 0,

  1529.         FluidSynthReverbRoomSize = 1,

  1530.         FluidSynthReverbDamp     = 2,

  1531.         FluidSynthReverbLevel    = 3,

  1532.         FluidSynthReverbWidth    = 4,

  1533.         FluidSynthChorusOnOff    = 5,

  1534.         FluidSynthChorusNr       = 6,

  1535.         FluidSynthChorusLevel    = 7,

  1536.         FluidSynthChorusSpeedHz  = 8,

  1537.         FluidSynthChorusDepthMs  = 9,

  1538.         FluidSynthChorusType     = 10,

  1539.         FluidSynthPolyphony      = 11,

  1540.         FluidSynthInterpolation  = 12,

  1541.         FluidSynthVoiceCount     = 13,

  1542.         FluidSynthParametersMax  = 14

  1543.     };

  1544. 

  1545.     const bool kUses16Outs;

  1546. 

  1547.     CarlaString fLabel;

  1548. 

  1549.     fluid_settings_t* fSettings;

  1550.     fluid_synth_t* fSynth;

  1551.     int fSynthId;

  1552. 

  1553.     float** fAudio16Buffers;

  1554.     float   fParamBuffers[FluidSynthParametersMax];

  1555. 

  1556.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(FluidSynthPlugin)

  1557. };

  1558. 

  1559. CARLA_BACKEND_END_NAMESPACE

  1560. 

  1561. #else // WANT_FLUIDSYNTH

  1562. # warning fluidsynth not available (no SF2 support)

  1563. #endif

  1564. 

  1565. CARLA_BACKEND_START_NAMESPACE

  1566. 

  1567. CarlaPlugin* CarlaPlugin::newSF2(const Initializer& init, const bool use16Outs)

  1568. {

  1569.     carla_debug("CarlaPlugin::newSF2({%p, \"%s\", \"%s\", \"%s\"}, %s)", init.engine, init.filename, init.name, init.label, bool2str(use16Outs));

  1570. 

  1571. #ifdef WANT_FLUIDSYNTH

  1572.     if (! fluid_is_soundfont(init.filename))

  1573.     {

  1574.         init.engine->setLastError("Requested file is not a valid SoundFont");

  1575.         return nullptr;

  1576.     }

  1577. 

  1578.     if (init.engine->getProccessMode() == PROCESS_MODE_CONTINUOUS_RACK && use16Outs)

  1579.     {

  1580.         init.engine->setLastError("Carla's rack mode can only work with Stereo modules, please choose the 2-channel only SoundFont version");

  1581.         return nullptr;

  1582.     }

  1583. 

  1584.     FluidSynthPlugin* const plugin(new FluidSynthPlugin(init.engine, init.id,  use16Outs));

  1585. 

  1586.     if (! plugin->init(init.filename, init.name, init.label))

  1587.     {

  1588.         delete plugin;

  1589.         return nullptr;

  1590.     }

  1591. 

  1592.     plugin->reload();

  1593. 

  1594.     return plugin;

  1595. #else

  1596.     init.engine->setLastError("fluidsynth support not available");

  1597.     return nullptr;

  1598. 

  1599.     // unused

  1600.     (void)use16Outs;

  1601. #endif

  1602. }

  1603. 

  1604. CARLA_BACKEND_END_NAMESPACE