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Carla
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Audio plugin host https://kx.studio/carla
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Carla/source/backend/plugin/NativePlugin.cpp

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  1. /*

  2.  * Carla Native Plugin

  3.  * Copyright (C) 2012-2014 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 doc/GPL.txt file.

  16.  */

  17. 

  18. #include "CarlaPluginInternal.hpp"

  19. #include "CarlaEngine.hpp"

  20. 

  21. #ifdef WANT_NATIVE

  22. 

  23. #include "CarlaMathUtils.hpp"

  24. 

  25. #include "CarlaNative.h"

  26. 

  27. #include <QtCore/QStringList>

  28. 

  29. CARLA_BACKEND_START_NAMESPACE

  30. 

  31. #if 0

  32. }

  33. #endif

  34. 

  35. struct NativePluginMidiData {

  36.     uint32_t  count;

  37.     uint32_t* indexes;

  38.     CarlaEngineEventPort** ports;

  39. 

  40.     NativePluginMidiData()

  41.         : count(0),

  42.           indexes(nullptr),

  43.           ports(nullptr) {}

  44. 

  45.     ~NativePluginMidiData()

  46.     {

  47.         CARLA_ASSERT_INT(count == 0, count);

  48.         CARLA_ASSERT(indexes == nullptr);

  49.         CARLA_ASSERT(ports == nullptr);

  50.     }

  51. 

  52.     void createNew(const uint32_t newCount)

  53.     {

  54.         CARLA_SAFE_ASSERT_INT(count == 0, count);

  55.         CARLA_SAFE_ASSERT_RETURN(indexes == nullptr,);

  56.         CARLA_SAFE_ASSERT_RETURN(ports == nullptr,);

  57.         CARLA_SAFE_ASSERT_RETURN(newCount > 0,);

  58. 

  59.         ports   = new CarlaEngineEventPort*[newCount];

  60.         indexes = new uint32_t[newCount];

  61.         count   = newCount;

  62. 

  63.         for (uint32_t i=0; i < newCount; ++i)

  64.             ports[i] = nullptr;

  65. 

  66.         for (uint32_t i=0; i < newCount; ++i)

  67.             indexes[i] = 0;

  68.     }

  69. 

  70.     void clear()

  71.     {

  72.         if (ports != nullptr)

  73.         {

  74.             for (uint32_t i=0; i < count; ++i)

  75.             {

  76.                 if (ports[i] != nullptr)

  77.                 {

  78.                     delete ports[i];

  79.                     ports[i] = nullptr;

  80.                 }

  81.             }

  82. 

  83.             delete[] ports;

  84.             ports = nullptr;

  85.         }

  86. 

  87.         if (indexes != nullptr)

  88.         {

  89.             delete[] indexes;

  90.             indexes = nullptr;

  91.         }

  92. 

  93.         count = 0;

  94.     }

  95. 

  96.     void initBuffers()

  97.     {

  98.         for (uint32_t i=0; i < count; ++i)

  99.         {

  100.             if (ports[i] != nullptr)

  101.                 ports[i]->initBuffer();

  102.         }

  103.     }

  104. 

  105.     CARLA_DECLARE_NON_COPY_STRUCT(NativePluginMidiData)

  106. };

  107. 

  108. // -----------------------------------------------------

  109. 

  110. class NativePlugin : public CarlaPlugin

  111. {

  112. public:

  113.     NativePlugin(CarlaEngine* const engine, const unsigned int id)

  114.         : CarlaPlugin(engine, id),

  115.           fHandle(nullptr),

  116.           fHandle2(nullptr),

  117.           fDescriptor(nullptr),

  118.           fIsProcessing(false),

  119.           fIsUiVisible(false),

  120.           fAudioInBuffers(nullptr),

  121.           fAudioOutBuffers(nullptr),

  122.           fMidiEventCount(0)

  123.     {

  124.         carla_debug("NativePlugin::NativePlugin(%p, %i)", engine, id);

  125. 

  126.         carla_fill<int32_t>(fCurMidiProgs, MAX_MIDI_CHANNELS, 0);

  127.         carla_zeroStruct<NativeMidiEvent>(fMidiEvents, kPluginMaxMidiEvents*2);

  128.         carla_zeroStruct<NativeTimeInfo>(fTimeInfo);

  129. 

  130.         fHost.handle      = this;

  131.         fHost.resourceDir = carla_strdup(engine->getOptions().resourceDir);

  132.         fHost.uiName      = nullptr;

  133. 

  134.         fHost.get_buffer_size        = carla_host_get_buffer_size;

  135.         fHost.get_sample_rate        = carla_host_get_sample_rate;

  136.         fHost.is_offline             = carla_host_is_offline;

  137.         fHost.get_time_info          = carla_host_get_time_info;

  138.         fHost.write_midi_event       = carla_host_write_midi_event;

  139.         fHost.ui_parameter_changed   = carla_host_ui_parameter_changed;

  140.         fHost.ui_custom_data_changed = carla_host_ui_custom_data_changed;

  141.         fHost.ui_closed              = carla_host_ui_closed;

  142.         fHost.ui_open_file           = carla_host_ui_open_file;

  143.         fHost.ui_save_file           = carla_host_ui_save_file;

  144.         fHost.dispatcher             = carla_host_dispatcher;

  145.     }

  146. 

  147.     ~NativePlugin() override

  148.     {

  149.         carla_debug("NativePlugin::~NativePlugin()");

  150. 

  151.         // close UI

  152.         if (pData->hints & PLUGIN_HAS_UI)

  153.         {

  154.             if (fIsUiVisible && fDescriptor != nullptr && fDescriptor->ui_show != nullptr && fHandle != nullptr)

  155.                 fDescriptor->ui_show(fHandle, false);

  156.         }

  157. 

  158.         pData->singleMutex.lock();

  159.         pData->masterMutex.lock();

  160. 

  161.         if (pData->client != nullptr && pData->client->isActive())

  162.             pData->client->deactivate();

  163. 

  164.         CARLA_ASSERT(! fIsProcessing);

  165. 

  166.         if (pData->active)

  167.         {

  168.             deactivate();

  169.             pData->active = false;

  170.         }

  171. 

  172.         if (fDescriptor != nullptr)

  173.         {

  174.             if (fDescriptor->cleanup != nullptr)

  175.             {

  176.                 if (fHandle != nullptr)

  177.                     fDescriptor->cleanup(fHandle);

  178.                 if (fHandle2 != nullptr)

  179.                     fDescriptor->cleanup(fHandle2);

  180.             }

  181. 

  182.             fHandle  = nullptr;

  183.             fHandle2 = nullptr;

  184.             fDescriptor = nullptr;

  185.         }

  186. 

  187.         if (fHost.resourceDir != nullptr)

  188.         {

  189.             delete[] fHost.resourceDir;

  190.             fHost.resourceDir = nullptr;

  191.         }

  192. 

  193.         if (fHost.uiName != nullptr)

  194.         {

  195.             delete[] fHost.uiName;

  196.             fHost.uiName = nullptr;

  197.         }

  198. 

  199.         clearBuffers();

  200.     }

  201. 

  202.     // -------------------------------------------------------------------

  203.     // Information (base)

  204. 

  205.     PluginType getType() const noexcept override

  206.     {

  207.         return PLUGIN_INTERNAL;

  208.     }

  209. 

  210.     PluginCategory getCategory() const noexcept override

  211.     {

  212.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr, PLUGIN_CATEGORY_NONE);

  213. 

  214.         return static_cast<PluginCategory>(fDescriptor->category);

  215.     }

  216. 

  217.     // -------------------------------------------------------------------

  218.     // Information (count)

  219. 

  220.     uint32_t getMidiInCount() const noexcept override

  221.     {

  222.         return fMidiIn.count;

  223.     }

  224. 

  225.     uint32_t getMidiOutCount() const noexcept override

  226.     {

  227.         return fMidiOut.count;

  228.     }

  229. 

  230.     uint32_t getParameterScalePointCount(const uint32_t parameterId) const noexcept override

  231.     {

  232.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr, 0);

  233.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->get_parameter_info != nullptr, 0);

  234.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr, 0);

  235.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, 0);

  236. 

  237.         // FIXME - try

  238.         if (const NativeParameter* const param = fDescriptor->get_parameter_info(fHandle, parameterId))

  239.             return param->scalePointCount;

  240. 

  241.         carla_safe_assert("const Parameter* const param = fDescriptor->get_parameter_info(fHandle, parameterId)", __FILE__, __LINE__);

  242.         return 0;

  243.     }

  244. 

  245.     // -------------------------------------------------------------------

  246.     // Information (current data)

  247. 

  248.     // nothing

  249. 

  250.     // -------------------------------------------------------------------

  251.     // Information (per-plugin data)

  252. 

  253.     unsigned int getOptionsAvailable() const noexcept override

  254.     {

  255.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr, 0x0);

  256.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr, 0);

  257. 

  258.         // FIXME - try

  259.         const bool hasMidiProgs(fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_count(fHandle) > 0);

  260. 

  261.         unsigned int options = 0x0;

  262. 

  263.         if (hasMidiProgs && (fDescriptor->supports & ::PLUGIN_SUPPORTS_PROGRAM_CHANGES) == 0)

  264.             options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  265. 

  266.         if (getMidiInCount() == 0 && (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS) == 0)

  267.             options |= PLUGIN_OPTION_FIXED_BUFFERS;

  268. 

  269.         if (pData->engine->getProccessMode() != ENGINE_PROCESS_MODE_CONTINUOUS_RACK)

  270.         {

  271.             if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  272.                 options |= PLUGIN_OPTION_FORCE_STEREO;

  273.             else if (pData->audioIn.count <= 1 && pData->audioOut.count <= 1 && (pData->audioIn.count != 0 || pData->audioOut.count != 0))

  274.                 options |= PLUGIN_OPTION_FORCE_STEREO;

  275.         }

  276. 

  277.         if (fDescriptor->supports & ::PLUGIN_SUPPORTS_CONTROL_CHANGES)

  278.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  279.         if (fDescriptor->supports & ::PLUGIN_SUPPORTS_CHANNEL_PRESSURE)

  280.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  281.         if (fDescriptor->supports & ::PLUGIN_SUPPORTS_NOTE_AFTERTOUCH)

  282.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  283.         if (fDescriptor->supports & ::PLUGIN_SUPPORTS_PITCHBEND)

  284.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

  285.         if (fDescriptor->supports & ::PLUGIN_SUPPORTS_ALL_SOUND_OFF)

  286.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  287. 

  288.         return options;

  289.     }

  290. 

  291.     float getParameterValue(const uint32_t parameterId) const noexcept override

  292.     {

  293.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr, 0.0f);

  294.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->get_parameter_value != nullptr, 0.0f);

  295.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr, 0.0f);

  296.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, 0.0f);

  297. 

  298.         // FIXME - try

  299.         return fDescriptor->get_parameter_value(fHandle, parameterId);

  300.     }

  301. 

  302.     float getParameterScalePointValue(const uint32_t parameterId, const uint32_t scalePointId) const noexcept override

  303.     {

  304.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr, 0.0f);

  305.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->get_parameter_info != nullptr, 0.0f);

  306.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr, 0.0f);

  307.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, 0.0f);

  308.         CARLA_SAFE_ASSERT_RETURN(scalePointId < getParameterScalePointCount(parameterId), 0.0f);

  309. 

  310.         // FIXME - try

  311.         if (const NativeParameter* const param = fDescriptor->get_parameter_info(fHandle, parameterId))

  312.         {

  313.             const NativeParameterScalePoint* scalePoint(&param->scalePoints[scalePointId]);

  314.             return scalePoint->value;

  315.         }

  316. 

  317.         carla_safe_assert("const Parameter* const param = fDescriptor->get_parameter_info(fHandle, parameterId)", __FILE__, __LINE__);

  318.         return 0.0f;

  319.     }

  320. 

  321.     void getLabel(char* const strBuf) const noexcept override

  322.     {

  323.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  324. 

  325.         if (fDescriptor->label != nullptr)

  326.             std::strncpy(strBuf, fDescriptor->label, STR_MAX);

  327.         else

  328.             CarlaPlugin::getLabel(strBuf);

  329.     }

  330. 

  331.     void getMaker(char* const strBuf) const noexcept override

  332.     {

  333.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  334. 

  335.         if (fDescriptor->maker != nullptr)

  336.             std::strncpy(strBuf, fDescriptor->maker, STR_MAX);

  337.         else

  338.             CarlaPlugin::getMaker(strBuf);

  339.     }

  340. 

  341.     void getCopyright(char* const strBuf) const noexcept override

  342.     {

  343.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  344. 

  345.         if (fDescriptor->copyright != nullptr)

  346.             std::strncpy(strBuf, fDescriptor->copyright, STR_MAX);

  347.         else

  348.             CarlaPlugin::getCopyright(strBuf);

  349.     }

  350. 

  351.     void getRealName(char* const strBuf) const noexcept override

  352.     {

  353.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  354. 

  355.         if (fDescriptor->name != nullptr)

  356.             std::strncpy(strBuf, fDescriptor->name, STR_MAX);

  357.         else

  358.             CarlaPlugin::getRealName(strBuf);

  359.     }

  360. 

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

  362.     {

  363.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  364.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->get_parameter_info != nullptr,);

  365.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  366.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  367. 

  368.         // FIXME - try

  369.         if (const NativeParameter* const param = fDescriptor->get_parameter_info(fHandle, parameterId))

  370.         {

  371.             if (param->name != nullptr)

  372.             {

  373.                 std::strncpy(strBuf, param->name, STR_MAX);

  374.                 return;

  375.             }

  376.             carla_safe_assert("param->name != nullptr", __FILE__, __LINE__);

  377.             return CarlaPlugin::getParameterName(parameterId, strBuf);

  378.         }

  379. 

  380.         carla_safe_assert("const Parameter* const param = fDescriptor->get_parameter_info(fHandle, parameterId)", __FILE__, __LINE__);

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

  382.     }

  383. 

  384.     void getParameterText(const uint32_t parameterId, const float value, char* const strBuf) const noexcept override

  385.     {

  386.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  387.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->get_parameter_text != nullptr,);

  388.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->get_parameter_value != nullptr,);

  389.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  390.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  391. 

  392.         // FIXME - try

  393.         if (const char* const text = fDescriptor->get_parameter_text(fHandle, parameterId, value))

  394.         {

  395.             std::strncpy(strBuf, text, STR_MAX);

  396.             return;

  397.         }

  398. 

  399.         carla_safe_assert("const char* const text = fDescriptor->get_parameter_text(fHandle, parameterId, value)", __FILE__, __LINE__);

  400.         CarlaPlugin::getParameterText(parameterId, value, strBuf);

  401.     }

  402. 

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

  404.     {

  405.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  406.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->get_parameter_info != nullptr,);

  407.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  408.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  409. 

  410.         // FIXME - try

  411.         if (const NativeParameter* const param = fDescriptor->get_parameter_info(fHandle, parameterId))

  412.         {

  413.             if (param->unit != nullptr)

  414.             {

  415.                 std::strncpy(strBuf, param->unit, STR_MAX);

  416.                 return;

  417.             }

  418.             return CarlaPlugin::getParameterUnit(parameterId, strBuf);

  419.         }

  420. 

  421.         carla_safe_assert("const Parameter* const param = fDescriptor->get_parameter_info(fHandle, parameterId)", __FILE__, __LINE__);

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

  423.     }

  424. 

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

  426.     {

  427.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  428.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->get_parameter_info != nullptr,);

  429.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  430.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  431.         CARLA_SAFE_ASSERT_RETURN(scalePointId < getParameterScalePointCount(parameterId),);

  432. 

  433.         // FIXME - try

  434.         if (const NativeParameter* const param = fDescriptor->get_parameter_info(fHandle, parameterId))

  435.         {

  436.             const NativeParameterScalePoint* scalePoint(&param->scalePoints[scalePointId]);

  437. 

  438.             if (scalePoint->label != nullptr)

  439.             {

  440.                 std::strncpy(strBuf, scalePoint->label, STR_MAX);

  441.                 return;

  442.             }

  443.             carla_safe_assert("scalePoint->label != nullptr", __FILE__, __LINE__);

  444.             return CarlaPlugin::getParameterScalePointLabel(parameterId, scalePointId, strBuf);

  445.         }

  446. 

  447.         carla_safe_assert("const Parameter* const param = fDescriptor->get_parameter_info(fHandle, parameterId)", __FILE__, __LINE__);

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

  449.     }

  450. 

  451.     // -------------------------------------------------------------------

  452.     // Set data (state)

  453. 

  454.     void prepareForSave() override

  455.     {

  456.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  457.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  458. 

  459.         if (pData->midiprog.count > 0 && fDescriptor->category == ::PLUGIN_CATEGORY_SYNTH)

  460.         {

  461.             char strBuf[STR_MAX+1];

  462.             std::snprintf(strBuf, STR_MAX, "%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i:%i",

  463.                           fCurMidiProgs[0],  fCurMidiProgs[1],  fCurMidiProgs[2],  fCurMidiProgs[3],

  464.                           fCurMidiProgs[4],  fCurMidiProgs[5],  fCurMidiProgs[6],  fCurMidiProgs[7],

  465.                           fCurMidiProgs[8],  fCurMidiProgs[9],  fCurMidiProgs[10], fCurMidiProgs[11],

  466.                           fCurMidiProgs[12], fCurMidiProgs[13], fCurMidiProgs[14], fCurMidiProgs[15]);

  467.             strBuf[STR_MAX] = '\0';

  468. 

  469.             CarlaPlugin::setCustomData(CUSTOM_DATA_TYPE_STRING, "midiPrograms", strBuf, false);

  470.         }

  471. 

  472.         if (fDescriptor == nullptr || fDescriptor->get_state == nullptr || (fDescriptor->hints & ::PLUGIN_USES_STATE) == 0)

  473.             return;

  474. 

  475.         if (char* data = fDescriptor->get_state(fHandle))

  476.         {

  477.             CarlaPlugin::setCustomData(CUSTOM_DATA_TYPE_CHUNK, "State", data, false);

  478.             std::free(data);

  479.         }

  480.     }

  481. 

  482.     // -------------------------------------------------------------------

  483.     // Set data (internal stuff)

  484. 

  485.     void setName(const char* const newName) override

  486.     {

  487.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  488.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  489.         CARLA_SAFE_ASSERT_RETURN(newName != nullptr && newName[0] != '\0',);

  490. 

  491.         char uiName[std::strlen(newName)+6+1];

  492.         std::strcpy(uiName, newName);

  493.         std::strcat(uiName, " (GUI)");

  494. 

  495.         if (fHost.uiName != nullptr)

  496.             delete[] fHost.uiName;

  497.         fHost.uiName = carla_strdup(uiName);

  498. 

  499.         if (fDescriptor->dispatcher != nullptr)

  500.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_UI_NAME_CHANGED, 0, 0, uiName, 0.0f);

  501. 

  502.         CarlaPlugin::setName(newName);

  503.     }

  504. 

  505.     void setCtrlChannel(const int8_t channel, const bool sendOsc, const bool sendCallback) noexcept override

  506.     {

  507.         if (channel < MAX_MIDI_CHANNELS && pData->midiprog.count > 0)

  508.             pData->midiprog.current = fCurMidiProgs[channel];

  509. 

  510.         CarlaPlugin::setCtrlChannel(channel, sendOsc, sendCallback);

  511.     }

  512. 

  513.     // -------------------------------------------------------------------

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

  515. 

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

  517.     {

  518.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  519.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->set_parameter_value != nullptr,);

  520.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  521.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  522. 

  523.         const float fixedValue(pData->param.getFixedValue(parameterId, value));

  524. 

  525.         // FIXME - try

  526.         fDescriptor->set_parameter_value(fHandle, parameterId, fixedValue);

  527. 

  528.         if (fHandle2 != nullptr)

  529.             fDescriptor->set_parameter_value(fHandle2, parameterId, fixedValue);

  530. 

  531.         CarlaPlugin::setParameterValue(parameterId, fixedValue, sendGui, sendOsc, sendCallback);

  532.     }

  533. 

  534.     void setCustomData(const char* const type, const char* const key, const char* const value, const bool sendGui) override

  535.     {

  536.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  537.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  538.         CARLA_SAFE_ASSERT_RETURN(type != nullptr && type[0] != '\0',);

  539.         CARLA_SAFE_ASSERT_RETURN(key != nullptr && key[0] != '\0',);

  540.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

  541.         carla_debug("NativePlugin::setCustomData(%s, %s, %s, %s)", type, key, value, bool2str(sendGui));

  542. 

  543.         if (std::strcmp(type, CUSTOM_DATA_TYPE_STRING) != 0 && std::strcmp(type, CUSTOM_DATA_TYPE_CHUNK) != 0)

  544.             return carla_stderr2("NativePlugin::setCustomData(\"%s\", \"%s\", \"%s\", %s) - type is invalid", type, key, value, bool2str(sendGui));

  545. 

  546.         if (std::strcmp(type, CUSTOM_DATA_TYPE_CHUNK) == 0)

  547.         {

  548.             if (fDescriptor->set_state != nullptr && (fDescriptor->hints & ::PLUGIN_USES_STATE) != 0)

  549.             {

  550.                 const ScopedSingleProcessLocker spl(this, true);

  551. 

  552.                 fDescriptor->set_state(fHandle, value);

  553. 

  554.                 if (fHandle2 != nullptr)

  555.                     fDescriptor->set_state(fHandle2, value);

  556.             }

  557.         }

  558.         else if (std::strcmp(key, "midiPrograms") == 0 && fDescriptor->set_midi_program != nullptr)

  559.         {

  560.             QStringList midiProgramList(QString(value).split(":", QString::SkipEmptyParts));

  561. 

  562.             if (midiProgramList.count() == MAX_MIDI_CHANNELS)

  563.             {

  564.                 uint8_t channel = 0;

  565.                 foreach (const QString& midiProg, midiProgramList)

  566.                 {

  567.                     bool ok;

  568.                     const int index(midiProg.toInt(&ok));

  569. 

  570.                     if (ok && index >= 0 && index < static_cast<int>(pData->midiprog.count))

  571.                     {

  572.                         const uint32_t bank    = pData->midiprog.data[index].bank;

  573.                         const uint32_t program = pData->midiprog.data[index].program;

  574. 

  575.                         fDescriptor->set_midi_program(fHandle, channel, bank, program);

  576. 

  577.                         if (fHandle2 != nullptr)

  578.                             fDescriptor->set_midi_program(fHandle2, channel, bank, program);

  579. 

  580.                         fCurMidiProgs[channel] = index;

  581. 

  582.                         if (pData->ctrlChannel == static_cast<int32_t>(channel))

  583.                         {

  584.                             pData->midiprog.current = index;

  585.                             pData->engine->callback(ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED, pData->id, index, 0, 0.0f, nullptr);

  586.                         }

  587.                     }

  588. 

  589.                     ++channel;

  590.                 }

  591.             }

  592.         }

  593.         else

  594.         {

  595.             if (fDescriptor->set_custom_data != nullptr)

  596.             {

  597.                 fDescriptor->set_custom_data(fHandle, key, value);

  598. 

  599.                 if (fHandle2 != nullptr)

  600.                     fDescriptor->set_custom_data(fHandle2, key, value);

  601.             }

  602. 

  603.             if (sendGui && fIsUiVisible && fDescriptor->ui_set_custom_data != nullptr)

  604.                 fDescriptor->ui_set_custom_data(fHandle, key, value);

  605.         }

  606. 

  607.         CarlaPlugin::setCustomData(type, key, value, sendGui);

  608.     }

  609. 

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

  611.     {

  612.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  613.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  614.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->midiprog.count),);

  615. 

  616.         // TODO, put into check below

  617.         if ((pData->hints & PLUGIN_IS_SYNTH) != 0 && (pData->ctrlChannel < 0 || pData->ctrlChannel >= MAX_MIDI_CHANNELS))

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

  619. 

  620.         if (index >= 0)

  621.         {

  622.             const uint8_t  channel = uint8_t((pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS) ? pData->ctrlChannel : 0);

  623.             const uint32_t bank    = pData->midiprog.data[index].bank;

  624.             const uint32_t program = pData->midiprog.data[index].program;

  625. 

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

  627. 

  628.             try {

  629.                 fDescriptor->set_midi_program(fHandle, channel, bank, program);

  630.             } catch(...) {}

  631. 

  632.             if (fHandle2 != nullptr)

  633.             {

  634.                 try {

  635.                     fDescriptor->set_midi_program(fHandle2, channel, bank, program);

  636.                 } catch(...) {}

  637.             }

  638. 

  639.             fCurMidiProgs[channel] = index;

  640.         }

  641. 

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

  643.     }

  644. 

  645.     // -------------------------------------------------------------------

  646.     // Set ui stuff

  647. 

  648.     void showCustomUI(const bool yesNo) override

  649.     {

  650.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  651.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  652. 

  653.         if (fDescriptor->ui_show == nullptr)

  654.             return;

  655. 

  656.         fDescriptor->ui_show(fHandle, yesNo);

  657.         fIsUiVisible = yesNo;

  658. 

  659.         if (! yesNo)

  660.             return;

  661. 

  662.         if (fDescriptor->ui_set_custom_data != nullptr)

  663.         {

  664.             for (LinkedList<CustomData>::Itenerator it = pData->custom.begin(); it.valid(); it.next())

  665.             {

  666.                 const CustomData& cData(it.getValue());

  667. 

  668.                 if (std::strcmp(cData.type, CUSTOM_DATA_TYPE_STRING) == 0 && std::strcmp(cData.key, "midiPrograms") != 0)

  669.                     fDescriptor->ui_set_custom_data(fHandle, cData.key, cData.value);

  670.             }

  671.         }

  672. 

  673.         if (fDescriptor->ui_set_midi_program != nullptr && pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  674.         {

  675.             const int32_t  index   = pData->midiprog.current;

  676.             const uint8_t  channel = uint8_t((pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS) ? pData->ctrlChannel : 0);

  677.             const uint32_t bank    = pData->midiprog.data[index].bank;

  678.             const uint32_t program = pData->midiprog.data[index].program;

  679. 

  680.             fDescriptor->ui_set_midi_program(fHandle, channel, bank, program);

  681.         }

  682. 

  683.         if (fDescriptor->ui_set_parameter_value != nullptr)

  684.         {

  685.             for (uint32_t i=0; i < pData->param.count; ++i)

  686.                 fDescriptor->ui_set_parameter_value(fHandle, i, fDescriptor->get_parameter_value(fHandle, i));

  687.         }

  688.     }

  689. 

  690.     void idle() override

  691.     {

  692.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  693.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  694. 

  695.         if (fIsUiVisible && fDescriptor->ui_idle != nullptr)

  696.             fDescriptor->ui_idle(fHandle);

  697. 

  698.         CarlaPlugin::idle();

  699.     }

  700. 

  701.     // -------------------------------------------------------------------

  702.     // Plugin state

  703. 

  704.     void reload() override

  705.     {

  706.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr,);

  707.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  708.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  709.         carla_debug("NativePlugin::reload() - start");

  710. 

  711.         const EngineProcessMode processMode(pData->engine->getProccessMode());

  712. 

  713.         // Safely disable plugin for reload

  714.         const ScopedDisabler sd(this);

  715. 

  716.         if (pData->active)

  717.             deactivate();

  718. 

  719.         clearBuffers();

  720. 

  721.         const float sampleRate((float)pData->engine->getSampleRate());

  722. 

  723.         uint32_t aIns, aOuts, mIns, mOuts, params, j;

  724. 

  725.         bool forcedStereoIn, forcedStereoOut;

  726.         forcedStereoIn = forcedStereoOut = false;

  727. 

  728.         bool needsCtrlIn, needsCtrlOut;

  729.         needsCtrlIn = needsCtrlOut = false;

  730. 

  731.         aIns   = fDescriptor->audioIns;

  732.         aOuts  = fDescriptor->audioOuts;

  733.         mIns   = fDescriptor->midiIns;

  734.         mOuts  = fDescriptor->midiOuts;

  735.         params = (fDescriptor->get_parameter_count != nullptr && fDescriptor->get_parameter_info != nullptr) ? fDescriptor->get_parameter_count(fHandle) : 0;

  736. 

  737.         if ((pData->options & PLUGIN_OPTION_FORCE_STEREO) != 0 && (aIns == 1 || aOuts == 1) && mIns <= 1 && mOuts <= 1)

  738.         {

  739.             if (fHandle2 == nullptr)

  740.                 fHandle2 = fDescriptor->instantiate(&fHost);

  741. 

  742.             if (fHandle2 != nullptr)

  743.             {

  744.                 if (aIns == 1)

  745.                 {

  746.                     aIns = 2;

  747.                     forcedStereoIn = true;

  748.                 }

  749. 

  750.                 if (aOuts == 1)

  751.                 {

  752.                     aOuts = 2;

  753.                     forcedStereoOut = true;

  754.                 }

  755.             }

  756.         }

  757. 

  758.         if (aIns > 0)

  759.         {

  760.             pData->audioIn.createNew(aIns);

  761.             fAudioInBuffers = new float*[aIns];

  762. 

  763.             for (uint32_t i=0; i < aIns; ++i)

  764.                 fAudioInBuffers[i] = nullptr;

  765.         }

  766. 

  767.         if (aOuts > 0)

  768.         {

  769.             pData->audioOut.createNew(aOuts);

  770.             fAudioOutBuffers = new float*[aOuts];

  771.             needsCtrlIn = true;

  772. 

  773.             for (uint32_t i=0; i < aOuts; ++i)

  774.                 fAudioOutBuffers[i] = nullptr;

  775.         }

  776. 

  777.         if (mIns > 0)

  778.         {

  779.             fMidiIn.createNew(mIns);

  780.             needsCtrlIn = (mIns == 1);

  781.         }

  782. 

  783.         if (mOuts > 0)

  784.         {

  785.             fMidiOut.createNew(mOuts);

  786.             needsCtrlOut = (mOuts == 1);

  787.         }

  788. 

  789.         if (params > 0)

  790.         {

  791.             pData->param.createNew(params, true);

  792.         }

  793. 

  794.         const uint portNameSize(pData->engine->getMaxPortNameSize());

  795.         CarlaString portName;

  796. 

  797.         // Audio Ins

  798.         for (j=0; j < aIns; ++j)

  799.         {

  800.             portName.clear();

  801. 

  802.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  803.             {

  804.                 portName  = pData->name;

  805.                 portName += ":";

  806.             }

  807. 

  808.             if (aIns > 1 && ! forcedStereoIn)

  809.             {

  810.                 portName += "input_";

  811.                 portName += CarlaString(j+1);

  812.             }

  813.             else

  814.                 portName += "input";

  815. 

  816.             portName.truncate(portNameSize);

  817. 

  818.             pData->audioIn.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true);

  819.             pData->audioIn.ports[j].rindex = j;

  820. 

  821.             if (forcedStereoIn)

  822.             {

  823.                 portName += "_2";

  824.                 pData->audioIn.ports[1].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true);

  825.                 pData->audioIn.ports[1].rindex = j;

  826.                 break;

  827.             }

  828.         }

  829. 

  830.         // Audio Outs

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

  832.         {

  833.             portName.clear();

  834. 

  835.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  836.             {

  837.                 portName  = pData->name;

  838.                 portName += ":";

  839.             }

  840. 

  841.             if (aOuts > 1 && ! forcedStereoOut)

  842.             {

  843.                 portName += "output_";

  844.                 portName += CarlaString(j+1);

  845.             }

  846.             else

  847.                 portName += "output";

  848. 

  849.             portName.truncate(portNameSize);

  850. 

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

  852.             pData->audioOut.ports[j].rindex = j;

  853. 

  854.             if (forcedStereoOut)

  855.             {

  856.                 portName += "_2";

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

  858.                 pData->audioOut.ports[1].rindex = j;

  859.                 break;

  860.             }

  861.         }

  862. 

  863.         // MIDI Input (only if multiple)

  864.         if (mIns > 1)

  865.         {

  866.             for (j=0; j < mIns; ++j)

  867.             {

  868.                 portName.clear();

  869. 

  870.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  871.                 {

  872.                     portName  = pData->name;

  873.                     portName += ":";

  874.                 }

  875. 

  876.                 portName += "midi-in_";

  877.                 portName += CarlaString(j+1);

  878.                 portName.truncate(portNameSize);

  879. 

  880.                 fMidiIn.ports[j]   = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  881.                 fMidiIn.indexes[j] = j;

  882.             }

  883.         }

  884. 

  885.         // MIDI Output (only if multiple)

  886.         if (mOuts > 1)

  887.         {

  888.             for (j=0; j < mOuts; ++j)

  889.             {

  890.                 portName.clear();

  891. 

  892.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  893.                 {

  894.                     portName  = pData->name;

  895.                     portName += ":";

  896.                 }

  897. 

  898.                 portName += "midi-out_";

  899.                 portName += CarlaString(j+1);

  900.                 portName.truncate(portNameSize);

  901. 

  902.                 fMidiOut.ports[j]   = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  903.                 fMidiOut.indexes[j] = j;

  904.             }

  905.         }

  906. 

  907.         for (j=0; j < params; ++j)

  908.         {

  909.             const NativeParameter* const paramInfo(fDescriptor->get_parameter_info(fHandle, j));

  910. 

  911.             CARLA_SAFE_ASSERT_CONTINUE(paramInfo != nullptr);

  912. 

  913.             pData->param.data[j].type   = PARAMETER_UNKNOWN;

  914.             pData->param.data[j].hints  = 0x0;

  915.             pData->param.data[j].index  = static_cast<int32_t>(j);

  916.             pData->param.data[j].rindex = static_cast<int32_t>(j);

  917.             pData->param.data[j].midiCC = -1;

  918.             pData->param.data[j].midiChannel = 0;

  919.             pData->param.special[j] = PARAMETER_SPECIAL_NULL;

  920. 

  921.             float min, max, def, step, stepSmall, stepLarge;

  922. 

  923.             // min value

  924.             min = paramInfo->ranges.min;

  925. 

  926.             // max value

  927.             max = paramInfo->ranges.max;

  928. 

  929.             if (min > max)

  930.                 max = min;

  931.             else if (max < min)

  932.                 min = max;

  933. 

  934.             if (max - min == 0.0f)

  935.             {

  936.                 carla_stderr2("WARNING - Broken plugin parameter '%s': max - min == 0.0f", paramInfo->name);

  937.                 max = min + 0.1f;

  938.             }

  939. 

  940.             // default value

  941.             def = paramInfo->ranges.def;

  942. 

  943.             if (def < min)

  944.                 def = min;

  945.             else if (def > max)

  946.                 def = max;

  947. 

  948.             if (paramInfo->hints & ::PARAMETER_USES_SAMPLE_RATE)

  949.             {

  950.                 min *= sampleRate;

  951.                 max *= sampleRate;

  952.                 def *= sampleRate;

  953.                 pData->param.data[j].hints |= PARAMETER_USES_SAMPLERATE;

  954.             }

  955. 

  956.             if (paramInfo->hints & ::PARAMETER_IS_BOOLEAN)

  957.             {

  958.                 step = max - min;

  959.                 stepSmall = step;

  960.                 stepLarge = step;

  961.                 pData->param.data[j].hints |= PARAMETER_IS_BOOLEAN;

  962.             }

  963.             else if (paramInfo->hints & ::PARAMETER_IS_INTEGER)

  964.             {

  965.                 step = 1.0f;

  966.                 stepSmall = 1.0f;

  967.                 stepLarge = 10.0f;

  968.                 pData->param.data[j].hints |= PARAMETER_IS_INTEGER;

  969.             }

  970.             else

  971.             {

  972.                 float range = max - min;

  973.                 step = range/100.0f;

  974.                 stepSmall = range/1000.0f;

  975.                 stepLarge = range/10.0f;

  976.             }

  977. 

  978.             if (paramInfo->hints & ::PARAMETER_IS_OUTPUT)

  979.             {

  980.                 pData->param.data[j].type = PARAMETER_OUTPUT;

  981.                 needsCtrlOut = true;

  982.             }

  983.             else

  984.             {

  985.                 pData->param.data[j].type = PARAMETER_INPUT;

  986.                 needsCtrlIn = true;

  987.             }

  988. 

  989.             // extra parameter hints

  990.             if (paramInfo->hints & ::PARAMETER_IS_ENABLED)

  991.                 pData->param.data[j].hints |= PARAMETER_IS_ENABLED;

  992. 

  993.             if (paramInfo->hints & ::PARAMETER_IS_AUTOMABLE)

  994.                 pData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE;

  995. 

  996.             if (paramInfo->hints & ::PARAMETER_IS_LOGARITHMIC)

  997.                 pData->param.data[j].hints |= PARAMETER_IS_LOGARITHMIC;

  998. 

  999.             if (paramInfo->hints & ::PARAMETER_USES_SCALEPOINTS)

  1000.                 pData->param.data[j].hints |= PARAMETER_USES_SCALEPOINTS;

  1001. 

  1002.             if (paramInfo->hints & ::PARAMETER_USES_CUSTOM_TEXT)

  1003.                 pData->param.data[j].hints |= PARAMETER_USES_CUSTOM_TEXT;

  1004. 

  1005.             pData->param.ranges[j].min = min;

  1006.             pData->param.ranges[j].max = max;

  1007.             pData->param.ranges[j].def = def;

  1008.             pData->param.ranges[j].step = step;

  1009.             pData->param.ranges[j].stepSmall = stepSmall;

  1010.             pData->param.ranges[j].stepLarge = stepLarge;

  1011.         }

  1012. 

  1013.         if (needsCtrlIn)

  1014.         {

  1015.             portName.clear();

  1016. 

  1017.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1018.             {

  1019.                 portName  = pData->name;

  1020.                 portName += ":";

  1021.             }

  1022. 

  1023.             portName += "events-in";

  1024.             portName.truncate(portNameSize);

  1025. 

  1026.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  1027.         }

  1028. 

  1029.         if (needsCtrlOut)

  1030.         {

  1031.             portName.clear();

  1032. 

  1033.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1034.             {

  1035.                 portName  = pData->name;

  1036.                 portName += ":";

  1037.             }

  1038. 

  1039.             portName += "events-out";

  1040.             portName.truncate(portNameSize);

  1041. 

  1042.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  1043.         }

  1044. 

  1045.         if (forcedStereoIn || forcedStereoOut)

  1046.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1047.         else

  1048.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  1049. 

  1050.         // plugin hints

  1051.         pData->hints = 0x0;

  1052. 

  1053.         if (aOuts > 0 && (aIns == aOuts || aIns == 1))

  1054.             pData->hints |= PLUGIN_CAN_DRYWET;

  1055. 

  1056.         if (aOuts > 0)

  1057.             pData->hints |= PLUGIN_CAN_VOLUME;

  1058. 

  1059.         if (aOuts >= 2 && aOuts % 2 == 0)

  1060.             pData->hints |= PLUGIN_CAN_BALANCE;

  1061. 

  1062.         // native plugin hints

  1063.         if (fDescriptor->hints & ::PLUGIN_IS_RTSAFE)

  1064.             pData->hints |= PLUGIN_IS_RTSAFE;

  1065.         if (fDescriptor->hints & ::PLUGIN_IS_SYNTH)

  1066.             pData->hints |= PLUGIN_IS_SYNTH;

  1067.         if (fDescriptor->hints & ::PLUGIN_HAS_UI)

  1068.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  1069.         if (fDescriptor->hints & ::PLUGIN_NEEDS_SINGLE_THREAD)

  1070.             pData->hints |= PLUGIN_NEEDS_SINGLE_THREAD;

  1071.         if (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS)

  1072.             pData->hints |= PLUGIN_NEEDS_FIXED_BUFFERS;

  1073. 

  1074.         // extra plugin hints

  1075.         pData->extraHints = 0x0;

  1076. 

  1077.         if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0) && mIns <= 1 && mOuts <= 1)

  1078.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1079. 

  1080.         if (fDescriptor->hints & ::PLUGIN_USES_MULTI_PROGS)

  1081.             pData->extraHints |= PLUGIN_EXTRA_HINT_USES_MULTI_PROGS;

  1082. 

  1083.         bufferSizeChanged(pData->engine->getBufferSize());

  1084.         reloadPrograms(true);

  1085. 

  1086.         if (pData->active)

  1087.             activate();

  1088. 

  1089.         carla_debug("NativePlugin::reload() - end");

  1090.     }

  1091. 

  1092.     void reloadPrograms(const bool doInit) override

  1093.     {

  1094.         carla_debug("NativePlugin::reloadPrograms(%s)", bool2str(doInit));

  1095.         uint32_t i, oldCount  = pData->midiprog.count;

  1096.         const int32_t current = pData->midiprog.current;

  1097. 

  1098.         // Delete old programs

  1099.         pData->midiprog.clear();

  1100. 

  1101.         // Query new programs

  1102.         uint32_t count = 0;

  1103.         if (fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_info != nullptr && fDescriptor->set_midi_program != nullptr)

  1104.             count = fDescriptor->get_midi_program_count(fHandle);

  1105. 

  1106.         if (count > 0)

  1107.         {

  1108.             pData->midiprog.createNew(count);

  1109. 

  1110.             // Update data

  1111.             for (i=0; i < count; ++i)

  1112.             {

  1113.                 const NativeMidiProgram* const mpDesc(fDescriptor->get_midi_program_info(fHandle, i));

  1114.                 CARLA_ASSERT(mpDesc != nullptr);

  1115.                 CARLA_ASSERT(mpDesc->name != nullptr);

  1116. 

  1117.                 pData->midiprog.data[i].bank    = mpDesc->bank;

  1118.                 pData->midiprog.data[i].program = mpDesc->program;

  1119.                 pData->midiprog.data[i].name    = carla_strdup(mpDesc->name);

  1120.             }

  1121.         }

  1122. 

  1123. #ifndef BUILD_BRIDGE

  1124.         // Update OSC Names

  1125.         if (pData->engine->isOscControlRegistered())

  1126.         {

  1127.             pData->engine->oscSend_control_set_midi_program_count(pData->id, count);

  1128. 

  1129.             for (i=0; i < count; ++i)

  1130.                 pData->engine->oscSend_control_set_midi_program_data(pData->id, i, pData->midiprog.data[i].bank, pData->midiprog.data[i].program, pData->midiprog.data[i].name);

  1131.         }

  1132. #endif

  1133. 

  1134.         if (doInit)

  1135.         {

  1136.             if (count > 0)

  1137.                 setMidiProgram(0, false, false, false);

  1138.         }

  1139.         else

  1140.         {

  1141.             // Check if current program is invalid

  1142.             bool programChanged = false;

  1143. 

  1144.             if (count == oldCount+1)

  1145.             {

  1146.                 // one midi program added, probably created by user

  1147.                 pData->midiprog.current = static_cast<int32_t>(oldCount);

  1148.                 programChanged = true;

  1149.             }

  1150.             else if (current < 0 && count > 0)

  1151.             {

  1152.                 // programs exist now, but not before

  1153.                 pData->midiprog.current = 0;

  1154.                 programChanged = true;

  1155.             }

  1156.             else if (current >= 0 && count == 0)

  1157.             {

  1158.                 // programs existed before, but not anymore

  1159.                 pData->midiprog.current = -1;

  1160.                 programChanged = true;

  1161.             }

  1162.             else if (current >= static_cast<int32_t>(count))

  1163.             {

  1164.                 // current midi program > count

  1165.                 pData->midiprog.current = 0;

  1166.                 programChanged = true;

  1167.             }

  1168.             else

  1169.             {

  1170.                 // no change

  1171.                 pData->midiprog.current = current;

  1172.             }

  1173. 

  1174.             if (programChanged)

  1175.                 setMidiProgram(pData->midiprog.current, true, true, true);

  1176. 

  1177.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1178.         }

  1179.     }

  1180. 

  1181.     // -------------------------------------------------------------------

  1182.     // Plugin processing

  1183. 

  1184.     void activate() noexcept override

  1185.     {

  1186.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1187.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1188. 

  1189.         if (fDescriptor->activate != nullptr)

  1190.         {

  1191.             try {

  1192.                 fDescriptor->activate(fHandle);

  1193.             } catch(...) {}

  1194. 

  1195.             if (fHandle2 != nullptr)

  1196.             {

  1197.                 try {

  1198.                     fDescriptor->activate(fHandle2);

  1199.                 } catch(...) {}

  1200.             }

  1201.         }

  1202.     }

  1203. 

  1204.     void deactivate() noexcept override

  1205.     {

  1206.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1207.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1208. 

  1209.         if (fDescriptor->deactivate != nullptr)

  1210.         {

  1211.             try {

  1212.                 fDescriptor->deactivate(fHandle);

  1213.             } catch(...) {}

  1214. 

  1215.             if (fHandle2 != nullptr)

  1216.             {

  1217.                 try {

  1218.                     fDescriptor->deactivate(fHandle2);

  1219.                 } catch(...) {}

  1220.             }

  1221.         }

  1222.     }

  1223. 

  1224.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames) override

  1225.     {

  1226.         // --------------------------------------------------------------------------------------------------------

  1227.         // Check if active

  1228. 

  1229.         if (! pData->active)

  1230.         {

  1231.             // disable any output sound

  1232.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1233.                 FLOAT_CLEAR(outBuffer[i], frames);

  1234. 

  1235.             return;

  1236.         }

  1237. 

  1238.         fMidiEventCount = 0;

  1239.         carla_zeroStruct<NativeMidiEvent>(fMidiEvents, kPluginMaxMidiEvents*2);

  1240. 

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

  1242.         // Check if needs reset

  1243. 

  1244.         if (pData->needsReset)

  1245.         {

  1246.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1247.             {

  1248.                 for (uint8_t k=0, i=MAX_MIDI_CHANNELS; k < MAX_MIDI_CHANNELS; ++k)

  1249.                 {

  1250.                     fMidiEvents[k].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + k);

  1251.                     fMidiEvents[k].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1252.                     fMidiEvents[k].data[2] = 0;

  1253.                     fMidiEvents[k].size    = 3;

  1254. 

  1255.                     fMidiEvents[k+i].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + k);

  1256.                     fMidiEvents[k+i].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1257.                     fMidiEvents[k+i].data[2] = 0;

  1258.                     fMidiEvents[k+i].size    = 3;

  1259.                 }

  1260. 

  1261.                 fMidiEventCount = MAX_MIDI_CHANNELS*2;

  1262.             }

  1263.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1264.             {

  1265.                 for (uint8_t k=0; k < MAX_MIDI_NOTE; ++k)

  1266.                 {

  1267.                     fMidiEvents[k].data[0] = static_cast<uint8_t>(MIDI_STATUS_NOTE_OFF + pData->ctrlChannel);

  1268.                     fMidiEvents[k].data[1] = k;

  1269.                     fMidiEvents[k].data[2] = 0;

  1270.                     fMidiEvents[k].size    = 3;

  1271.                 }

  1272. 

  1273.                 fMidiEventCount = MAX_MIDI_NOTE;

  1274.             }

  1275. 

  1276.             pData->needsReset = false;

  1277.         }

  1278. 

  1279.         CARLA_PROCESS_CONTINUE_CHECK;

  1280. 

  1281.         // --------------------------------------------------------------------------------------------------------

  1282.         // Set TimeInfo

  1283. 

  1284.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1285. 

  1286.         fTimeInfo.playing = timeInfo.playing;

  1287.         fTimeInfo.frame   = timeInfo.frame;

  1288.         fTimeInfo.usecs   = timeInfo.usecs;

  1289. 

  1290.         if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1291.         {

  1292.             fTimeInfo.bbt.valid = true;

  1293. 

  1294.             fTimeInfo.bbt.bar  = timeInfo.bbt.bar;

  1295.             fTimeInfo.bbt.beat = timeInfo.bbt.beat;

  1296.             fTimeInfo.bbt.tick = timeInfo.bbt.tick;

  1297.             fTimeInfo.bbt.barStartTick = timeInfo.bbt.barStartTick;

  1298. 

  1299.             fTimeInfo.bbt.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1300.             fTimeInfo.bbt.beatType    = timeInfo.bbt.beatType;

  1301. 

  1302.             fTimeInfo.bbt.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1303.             fTimeInfo.bbt.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1304.         }

  1305.         else

  1306.             fTimeInfo.bbt.valid = false;

  1307. 

  1308.         CARLA_PROCESS_CONTINUE_CHECK;

  1309. 

  1310.         // --------------------------------------------------------------------------------------------------------

  1311.         // Event Input and Processing

  1312. 

  1313.         if (pData->event.portIn != nullptr)

  1314.         {

  1315.             // ----------------------------------------------------------------------------------------------------

  1316.             // MIDI Input (External)

  1317. 

  1318.             if (pData->extNotes.mutex.tryLock())

  1319.             {

  1320.                 while (fMidiEventCount < kPluginMaxMidiEvents*2 && ! pData->extNotes.data.isEmpty())

  1321.                 {

  1322.                     const ExternalMidiNote& note(pData->extNotes.data.getFirst(true));

  1323. 

  1324.                     CARLA_ASSERT(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1325. 

  1326.                     fMidiEvents[fMidiEventCount].data[0] = note.channel + (note.velo > 0) ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF;

  1327.                     fMidiEvents[fMidiEventCount].data[1] = note.note;

  1328.                     fMidiEvents[fMidiEventCount].data[2] = note.velo;

  1329.                     fMidiEvents[fMidiEventCount].size    = 3;

  1330. 

  1331.                     fMidiEventCount += 1;

  1332.                 }

  1333. 

  1334.                 pData->extNotes.mutex.unlock();

  1335. 

  1336.             } // End of MIDI Input (External)

  1337. 

  1338.             // ----------------------------------------------------------------------------------------------------

  1339.             // Event Input (System)

  1340. 

  1341.             bool allNotesOffSent = false;

  1342.             bool sampleAccurate  = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1343. 

  1344.             uint32_t time, nEvents = pData->event.portIn->getEventCount();

  1345.             uint32_t startTime  = 0;

  1346.             uint32_t timeOffset = 0;

  1347.             uint32_t nextBankId = 0;

  1348. 

  1349.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1350.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1351. 

  1352.             for (uint32_t i=0; i < nEvents; ++i)

  1353.             {

  1354.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1355. 

  1356.                 time = event.time;

  1357. 

  1358.                 if (time >= frames)

  1359.                     continue;

  1360. 

  1361.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  1362. 

  1363.                 if (time > timeOffset && sampleAccurate)

  1364.                 {

  1365.                     if (processSingle(inBuffer, outBuffer, time - timeOffset, timeOffset))

  1366.                     {

  1367.                         startTime  = 0;

  1368.                         timeOffset = time;

  1369. 

  1370.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1371.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1372.                         else

  1373.                             nextBankId = 0;

  1374. 

  1375.                         if (fMidiEventCount > 0)

  1376.                         {

  1377.                             carla_zeroStruct<NativeMidiEvent>(fMidiEvents, fMidiEventCount);

  1378.                             fMidiEventCount = 0;

  1379.                         }

  1380.                     }

  1381.                     else

  1382.                         startTime += timeOffset;

  1383.                 }

  1384. 

  1385.                 // Control change

  1386.                 switch (event.type)

  1387.                 {

  1388.                 case kEngineEventTypeNull:

  1389.                     break;

  1390. 

  1391.                 case kEngineEventTypeControl:

  1392.                 {

  1393.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1394. 

  1395.                     switch (ctrlEvent.type)

  1396.                     {

  1397.                     case kEngineControlEventTypeNull:

  1398.                         break;

  1399. 

  1400.                     case kEngineControlEventTypeParameter:

  1401.                     {

  1402. #ifndef BUILD_BRIDGE

  1403.                         // Control backend stuff

  1404.                         if (event.channel == pData->ctrlChannel)

  1405.                         {

  1406.                             float value;

  1407. 

  1408.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) > 0)

  1409.                             {

  1410.                                 value = ctrlEvent.value;

  1411.                                 setDryWet(value, false, false);

  1412.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1413.                             }

  1414. 

  1415.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) > 0)

  1416.                             {

  1417.                                 value = ctrlEvent.value*127.0f/100.0f;

  1418.                                 setVolume(value, false, false);

  1419.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1420.                             }

  1421. 

  1422.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) > 0)

  1423.                             {

  1424.                                 float left, right;

  1425.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1426. 

  1427.                                 if (value < 0.0f)

  1428.                                 {

  1429.                                     left  = -1.0f;

  1430.                                     right = (value*2.0f)+1.0f;

  1431.                                 }

  1432.                                 else if (value > 0.0f)

  1433.                                 {

  1434.                                     left  = (value*2.0f)-1.0f;

  1435.                                     right = 1.0f;

  1436.                                 }

  1437.                                 else

  1438.                                 {

  1439.                                     left  = -1.0f;

  1440.                                     right = 1.0f;

  1441.                                 }

  1442. 

  1443.                                 setBalanceLeft(left, false, false);

  1444.                                 setBalanceRight(right, false, false);

  1445.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1446.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1447.                             }

  1448.                         }

  1449. #endif

  1450. 

  1451.                         // Control plugin parameters

  1452.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1453.                         {

  1454.                             if (pData->param.data[k].midiChannel != event.channel)

  1455.                                 continue;

  1456.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1457.                                 continue;

  1458.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1459.                                 continue;

  1460.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1461.                                 continue;

  1462. 

  1463.                             float value;

  1464. 

  1465.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1466.                             {

  1467.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1468.                             }

  1469.                             else

  1470.                             {

  1471.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1472. 

  1473.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1474.                                     value = std::rint(value);

  1475.                             }

  1476. 

  1477.                             setParameterValue(k, value, false, false, false);

  1478.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1479.                         }

  1480. 

  1481.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param <= 0x5F)

  1482.                         {

  1483.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1484.                                 continue;

  1485. 

  1486.                             fMidiEvents[fMidiEventCount].port    = 0;

  1487.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1488.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1489.                             fMidiEvents[fMidiEventCount].data[1] = static_cast<uint8_t>(ctrlEvent.param);

  1490.                             fMidiEvents[fMidiEventCount].data[2] = uint8_t(ctrlEvent.value*127.0f);

  1491.                             fMidiEvents[fMidiEventCount].size    = 3;

  1492. 

  1493.                             fMidiEventCount += 1;

  1494.                         }

  1495. 

  1496.                         break;

  1497.                     }

  1498. 

  1499.                     case kEngineControlEventTypeMidiBank:

  1500.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1501.                             nextBankId = ctrlEvent.param;

  1502.                         break;

  1503. 

  1504.                     case kEngineControlEventTypeMidiProgram:

  1505.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1506.                         {

  1507.                             const uint32_t nextProgramId(ctrlEvent.param);

  1508. 

  1509.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1510.                             {

  1511.                                 if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1512.                                 {

  1513.                                     fDescriptor->set_midi_program(fHandle, event.channel, nextBankId, nextProgramId);

  1514. 

  1515.                                     if (fHandle2 != nullptr)

  1516.                                         fDescriptor->set_midi_program(fHandle2, event.channel, nextBankId, nextProgramId);

  1517. 

  1518.                                     fCurMidiProgs[event.channel] = static_cast<int32_t>(k);

  1519. 

  1520.                                     if (event.channel == pData->ctrlChannel)

  1521.                                         pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, static_cast<int32_t>(k), 0, 0.0f);

  1522. 

  1523.                                     break;

  1524.                                 }

  1525.                             }

  1526.                         }

  1527.                         break;

  1528. 

  1529.                     case kEngineControlEventTypeAllSoundOff:

  1530.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1531.                         {

  1532.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1533.                                 continue;

  1534. 

  1535.                             fMidiEvents[fMidiEventCount].port    = 0;

  1536.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1537.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1538.                             fMidiEvents[fMidiEventCount].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1539.                             fMidiEvents[fMidiEventCount].data[2] = 0;

  1540.                             fMidiEvents[fMidiEventCount].size    = 3;

  1541. 

  1542.                             fMidiEventCount += 1;

  1543.                         }

  1544.                         break;

  1545. 

  1546.                     case kEngineControlEventTypeAllNotesOff:

  1547.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1548.                         {

  1549.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1550.                             {

  1551.                                 allNotesOffSent = true;

  1552.                                 sendMidiAllNotesOffToCallback();

  1553.                             }

  1554. 

  1555.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1556.                                 continue;

  1557. 

  1558.                             fMidiEvents[fMidiEventCount].port    = 0;

  1559.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1560.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1561.                             fMidiEvents[fMidiEventCount].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1562.                             fMidiEvents[fMidiEventCount].data[2] = 0;

  1563.                             fMidiEvents[fMidiEventCount].size    = 3;

  1564. 

  1565.                             fMidiEventCount += 1;

  1566.                         }

  1567.                         break;

  1568.                     }

  1569. 

  1570.                     break;

  1571.                 }

  1572. 

  1573.                 case kEngineEventTypeMidi:

  1574.                 {

  1575.                     if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1576.                         continue;

  1577. 

  1578.                     const EngineMidiEvent& midiEvent(event.midi);

  1579. 

  1580.                     uint8_t status  = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1581.                     uint8_t channel = event.channel;

  1582. 

  1583.                     if (MIDI_IS_STATUS_CHANNEL_PRESSURE(status) && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1584.                         continue;

  1585.                     if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1586.                         continue;

  1587.                     if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1588.                         continue;

  1589.                     if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1590.                         continue;

  1591. 

  1592.                     // Fix bad note-off

  1593.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1594.                         status = MIDI_STATUS_NOTE_OFF;

  1595. 

  1596.                     fMidiEvents[fMidiEventCount].port = 0;

  1597.                     fMidiEvents[fMidiEventCount].time = sampleAccurate ? startTime : time;

  1598.                     fMidiEvents[fMidiEventCount].size = midiEvent.size;

  1599. 

  1600.                     fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(status + channel);

  1601.                     fMidiEvents[fMidiEventCount].data[1] = midiEvent.data[1];

  1602.                     fMidiEvents[fMidiEventCount].data[2] = midiEvent.data[2];

  1603.                     fMidiEvents[fMidiEventCount].data[3] = midiEvent.data[3];

  1604. 

  1605.                     fMidiEventCount += 1;

  1606. 

  1607.                     if (status == MIDI_STATUS_NOTE_ON)

  1608.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, channel, midiEvent.data[1], midiEvent.data[2]);

  1609.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1610.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, channel, midiEvent.data[1], 0.0f);

  1611. 

  1612.                     break;

  1613.                 }

  1614.                 }

  1615.             }

  1616. 

  1617.             pData->postRtEvents.trySplice();

  1618. 

  1619.             if (frames > timeOffset)

  1620.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset);

  1621. 

  1622.         } // End of Event Input and Processing

  1623. 

  1624.         // --------------------------------------------------------------------------------------------------------

  1625.         // Plugin processing (no events)

  1626. 

  1627.         else

  1628.         {

  1629.             processSingle(inBuffer, outBuffer, frames, 0);

  1630. 

  1631.         } // End of Plugin processing (no events)

  1632. 

  1633.         CARLA_PROCESS_CONTINUE_CHECK;

  1634. 

  1635.         // --------------------------------------------------------------------------------------------------------

  1636.         // Control and MIDI Output

  1637. 

  1638.         if (fMidiOut.count > 0 || pData->event.portOut != nullptr)

  1639.         {

  1640.             float value, curValue;

  1641. 

  1642.             for (uint32_t k=0; k < pData->param.count; ++k)

  1643.             {

  1644.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1645.                     continue;

  1646. 

  1647.                 curValue = fDescriptor->get_parameter_value(fHandle, k);

  1648.                 pData->param.ranges[k].fixValue(curValue);

  1649. 

  1650.                 if (pData->param.data[k].midiCC > 0)

  1651.                 {

  1652.                     value = pData->param.ranges[k].getNormalizedValue(curValue);

  1653.                     pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), value);

  1654.                 }

  1655.             }

  1656. 

  1657.             // reverse lookup MIDI events

  1658.             for (uint32_t k = (kPluginMaxMidiEvents*2)-1; k >= fMidiEventCount; --k)

  1659.             {

  1660.                 if (fMidiEvents[k].data[0] == 0)

  1661.                     break;

  1662. 

  1663.                 const uint8_t channel = uint8_t(MIDI_GET_CHANNEL_FROM_DATA(fMidiEvents[k].data));

  1664.                 const uint8_t port    = fMidiEvents[k].port;

  1665. 

  1666.                 if (pData->event.portOut != nullptr)

  1667.                     pData->event.portOut->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].size, fMidiEvents[k].data);

  1668.                 else if (port < fMidiOut.count)

  1669.                     fMidiOut.ports[port]->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].size, fMidiEvents[k].data);

  1670.             }

  1671. 

  1672.         } // End of Control and MIDI Output

  1673.     }

  1674. 

  1675.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1676.     {

  1677.         CARLA_ASSERT(frames > 0);

  1678. 

  1679.         if (frames == 0)

  1680.             return false;

  1681. 

  1682.         if (pData->audioIn.count > 0)

  1683.         {

  1684.             CARLA_ASSERT(inBuffer != nullptr);

  1685.             if (inBuffer == nullptr)

  1686.                 return false;

  1687.         }

  1688.         if (pData->audioOut.count > 0)

  1689.         {

  1690.             CARLA_ASSERT(outBuffer != nullptr);

  1691.             if (outBuffer == nullptr)

  1692.                 return false;

  1693.         }

  1694. 

  1695.         uint32_t i, k;

  1696. 

  1697.         // --------------------------------------------------------------------------------------------------------

  1698.         // Try lock, silence otherwise

  1699. 

  1700.         if (pData->engine->isOffline())

  1701.         {

  1702.             pData->singleMutex.lock();

  1703.         }

  1704.         else if (! pData->singleMutex.tryLock())

  1705.         {

  1706.             for (i=0; i < pData->audioOut.count; ++i)

  1707.             {

  1708.                 for (k=0; k < frames; ++k)

  1709.                     outBuffer[i][k+timeOffset] = 0.0f;

  1710.             }

  1711. 

  1712.             return false;

  1713.         }

  1714. 

  1715.         // --------------------------------------------------------------------------------------------------------

  1716.         // Reset audio buffers

  1717. 

  1718.         for (i=0; i < pData->audioIn.count; ++i)

  1719.             FLOAT_COPY(fAudioInBuffers[i], inBuffer[i]+timeOffset, frames);

  1720. 

  1721.         for (i=0; i < pData->audioOut.count; ++i)

  1722.             FLOAT_CLEAR(fAudioOutBuffers[i], frames);

  1723. 

  1724.         // --------------------------------------------------------------------------------------------------------

  1725.         // Run plugin

  1726. 

  1727.         fIsProcessing = true;

  1728. 

  1729.         if (fHandle2 == nullptr)

  1730.         {

  1731.             fDescriptor->process(fHandle, fAudioInBuffers, fAudioOutBuffers, frames, fMidiEvents, fMidiEventCount);

  1732.         }

  1733.         else

  1734.         {

  1735.             fDescriptor->process(fHandle,

  1736.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[0] : nullptr,

  1737.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[0] : nullptr,

  1738.                                  frames, fMidiEvents, fMidiEventCount);

  1739. 

  1740.             fDescriptor->process(fHandle2,

  1741.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[1] : nullptr,

  1742.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[1] : nullptr,

  1743.                                  frames, fMidiEvents, fMidiEventCount);

  1744.         }

  1745. 

  1746.         fIsProcessing = false;

  1747.         fTimeInfo.frame += frames;

  1748. 

  1749. #ifndef BUILD_BRIDGE

  1750.         // --------------------------------------------------------------------------------------------------------

  1751.         // Post-processing (dry/wet, volume and balance)

  1752. 

  1753.         {

  1754.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && pData->postProc.dryWet != 1.0f;

  1755.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && (pData->postProc.balanceLeft != -1.0f || pData->postProc.balanceRight != 1.0f);

  1756. 

  1757.             bool isPair;

  1758.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1759. 

  1760.             for (i=0; i < pData->audioOut.count; ++i)

  1761.             {

  1762.                 // Dry/Wet

  1763.                 if (doDryWet)

  1764.                 {

  1765.                     for (k=0; k < frames; ++k)

  1766.                     {

  1767.                         bufValue = fAudioInBuffers[(pData->audioIn.count == 1) ? 0 : i][k];

  1768.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1769.                     }

  1770.                 }

  1771. 

  1772.                 // Balance

  1773.                 if (doBalance)

  1774.                 {

  1775.                     isPair = (i % 2 == 0);

  1776. 

  1777.                     if (isPair)

  1778.                     {

  1779.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1780.                         FLOAT_COPY(oldBufLeft, fAudioOutBuffers[i], frames);

  1781.                     }

  1782. 

  1783.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1784.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1785. 

  1786.                     for (k=0; k < frames; ++k)

  1787.                     {

  1788.                         if (isPair)

  1789.                         {

  1790.                             // left

  1791.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1792.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1793.                         }

  1794.                         else

  1795.                         {

  1796.                             // right

  1797.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1798.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1799.                         }

  1800.                     }

  1801.                 }

  1802. 

  1803.                 // Volume (and buffer copy)

  1804.                 {

  1805.                     for (k=0; k < frames; ++k)

  1806.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1807.                 }

  1808.             }

  1809. 

  1810.         } // End of Post-processing

  1811. #else

  1812.         for (i=0; i < pData->audioOut.count; ++i)

  1813.         {

  1814.             for (k=0; k < frames; ++k)

  1815.                 outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1816.         }

  1817. #endif

  1818. 

  1819.         // --------------------------------------------------------------------------------------------------------

  1820. 

  1821.         pData->singleMutex.unlock();

  1822.         return true;

  1823.     }

  1824. 

  1825.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1826.     {

  1827.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1828.         carla_debug("NativePlugin::bufferSizeChanged(%i)", newBufferSize);

  1829. 

  1830.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1831.         {

  1832.             if (fAudioInBuffers[i] != nullptr)

  1833.                 delete[] fAudioInBuffers[i];

  1834.             fAudioInBuffers[i] = new float[newBufferSize];

  1835.         }

  1836. 

  1837.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1838.         {

  1839.             if (fAudioOutBuffers[i] != nullptr)

  1840.                 delete[] fAudioOutBuffers[i];

  1841.             fAudioOutBuffers[i] = new float[newBufferSize];

  1842.         }

  1843. 

  1844.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1845.         {

  1846.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, newBufferSize, nullptr, 0.0f);

  1847. 

  1848.             if (fHandle2 != nullptr)

  1849.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, newBufferSize, nullptr, 0.0f);

  1850.         }

  1851.     }

  1852. 

  1853.     void sampleRateChanged(const double newSampleRate) override

  1854.     {

  1855.         CARLA_ASSERT_INT(newSampleRate > 0.0, (int)newSampleRate);

  1856.         carla_debug("NativePlugin::sampleRateChanged(%g)", newSampleRate);

  1857. 

  1858.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1859.         {

  1860.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  1861. 

  1862.             if (fHandle2 != nullptr)

  1863.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  1864.         }

  1865.     }

  1866. 

  1867.     void offlineModeChanged(const bool isOffline) override

  1868.     {

  1869.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1870.         {

  1871.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  1872. 

  1873.             if (fHandle2 != nullptr)

  1874.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  1875.         }

  1876.     }

  1877. 

  1878.     // -------------------------------------------------------------------

  1879.     // Plugin buffers

  1880. 

  1881.     void initBuffers() override

  1882.     {

  1883.         fMidiIn.initBuffers();

  1884.         fMidiOut.initBuffers();

  1885. 

  1886.         CarlaPlugin::initBuffers();

  1887.     }

  1888. 

  1889.     void clearBuffers() override

  1890.     {

  1891.         carla_debug("NativePlugin::clearBuffers() - start");

  1892. 

  1893.         if (fAudioInBuffers != nullptr)

  1894.         {

  1895.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1896.             {

  1897.                 if (fAudioInBuffers[i] != nullptr)

  1898.                 {

  1899.                     delete[] fAudioInBuffers[i];

  1900.                     fAudioInBuffers[i] = nullptr;

  1901.                 }

  1902.             }

  1903. 

  1904.             delete[] fAudioInBuffers;

  1905.             fAudioInBuffers = nullptr;

  1906.         }

  1907. 

  1908.         if (fAudioOutBuffers != nullptr)

  1909.         {

  1910.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1911.             {

  1912.                 if (fAudioOutBuffers[i] != nullptr)

  1913.                 {

  1914.                     delete[] fAudioOutBuffers[i];

  1915.                     fAudioOutBuffers[i] = nullptr;

  1916.                 }

  1917.             }

  1918. 

  1919.             delete[] fAudioOutBuffers;

  1920.             fAudioOutBuffers = nullptr;

  1921.         }

  1922. 

  1923.         fMidiIn.clear();

  1924.         fMidiOut.clear();

  1925. 

  1926.         CarlaPlugin::clearBuffers();

  1927. 

  1928.         carla_debug("NativePlugin::clearBuffers() - end");

  1929.     }

  1930. 

  1931.     // -------------------------------------------------------------------

  1932.     // Post-poned UI Stuff

  1933. 

  1934.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  1935.     {

  1936.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1937.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1938.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  1939. 

  1940.         if (! fIsUiVisible)

  1941.             return;

  1942. 

  1943.         if (fDescriptor->ui_set_parameter_value != nullptr)

  1944.             fDescriptor->ui_set_parameter_value(fHandle, index, value);

  1945.     }

  1946. 

  1947.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1948.     {

  1949.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1950.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1951.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1952. 

  1953.         if (! fIsUiVisible)

  1954.             return;

  1955.         if (index >= pData->midiprog.count)

  1956.             return;

  1957. 

  1958.         if (fDescriptor->ui_set_midi_program != nullptr)

  1959.             fDescriptor->ui_set_midi_program(fHandle, 0, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  1960.     }

  1961. 

  1962.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1963.     {

  1964.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1965.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1966.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1967.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1968.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  1969. 

  1970.         if (! fIsUiVisible)

  1971.             return;

  1972. 

  1973.         // TODO

  1974.     }

  1975. 

  1976.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  1977.     {

  1978.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1979.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1980.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1981.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1982. 

  1983.         if (! fIsUiVisible)

  1984.             return;

  1985.         if (fDescriptor == nullptr || fHandle == nullptr)

  1986.             return;

  1987. 

  1988.         // TODO

  1989.     }

  1990. 

  1991.     // -------------------------------------------------------------------

  1992. 

  1993. protected:

  1994.     uint32_t handleGetBufferSize() const noexcept

  1995.     {

  1996.         return pData->engine->getBufferSize();

  1997.     }

  1998. 

  1999.     double handleGetSampleRate() const noexcept

  2000.     {

  2001.         return pData->engine->getSampleRate();

  2002.     }

  2003. 

  2004.     bool handleIsOffline() const noexcept

  2005.     {

  2006.         return pData->engine->isOffline();

  2007.     }

  2008. 

  2009.     const NativeTimeInfo* handleGetTimeInfo() const noexcept

  2010.     {

  2011.         CARLA_SAFE_ASSERT_RETURN(fIsProcessing, nullptr);

  2012. 

  2013.         return &fTimeInfo;

  2014.     }

  2015. 

  2016.     bool handleWriteMidiEvent(const NativeMidiEvent* const event)

  2017.     {

  2018.         CARLA_ASSERT(pData->enabled);

  2019.         CARLA_ASSERT(fIsProcessing);

  2020.         CARLA_ASSERT(fMidiOut.count > 0 || pData->event.portOut != nullptr);

  2021.         CARLA_ASSERT(event != nullptr);

  2022.         CARLA_ASSERT(event->data[0] != 0);

  2023. 

  2024.         if (! pData->enabled)

  2025.             return false;

  2026.         if (fMidiOut.count == 0)

  2027.             return false;

  2028.         if (event == nullptr)

  2029.             return false;

  2030.         if (event->data[0] == 0)

  2031.             return false;

  2032.         if (! fIsProcessing)

  2033.         {

  2034.             carla_stderr2("NativePlugin::handleWriteMidiEvent(%p) - received MIDI out event outside audio thread, ignoring", event);

  2035.             return false;

  2036.         }

  2037. 

  2038.         // reverse-find first free event, and put it there

  2039.         for (uint32_t i=(kPluginMaxMidiEvents*2)-1; i > fMidiEventCount; --i)

  2040.         {

  2041.             if (fMidiEvents[i].data[0] == 0)

  2042.             {

  2043.                 std::memcpy(&fMidiEvents[i], event, sizeof(NativeMidiEvent));

  2044.                 return true;

  2045.             }

  2046.         }

  2047. 

  2048.         return false;

  2049.     }

  2050. 

  2051.     void handleUiParameterChanged(const uint32_t index, const float value)

  2052.     {

  2053.         setParameterValue(index, value, false, true, true);

  2054.     }

  2055. 

  2056.     void handleUiCustomDataChanged(const char* const key, const char* const value)

  2057.     {

  2058.         setCustomData(CUSTOM_DATA_TYPE_STRING, key, value, false);

  2059.     }

  2060. 

  2061.     void handleUiClosed()

  2062.     {

  2063.         pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2064.         fIsUiVisible = false;

  2065.     }

  2066. 

  2067.     const char* handleUiOpenFile(const bool isDir, const char* const title, const char* const filter)

  2068.     {

  2069.         return pData->engine->runFileCallback(FILE_CALLBACK_OPEN, isDir, title, filter);

  2070.     }

  2071. 

  2072.     const char* handleUiSaveFile(const bool isDir, const char* const title, const char* const filter)

  2073.     {

  2074.         return pData->engine->runFileCallback(FILE_CALLBACK_SAVE, isDir, title, filter);

  2075.     }

  2076. 

  2077.     intptr_t handleDispatcher(const NativeHostDispatcherOpcode opcode, const int32_t index, const intptr_t value, void* const ptr, const float opt)

  2078.     {

  2079.         carla_debug("NativePlugin::handleDispatcher(%i, %i, " P_INTPTR ", %p, %f)", opcode, index, value, ptr, opt);

  2080. 

  2081.         intptr_t ret = 0;

  2082. 

  2083.         switch (opcode)

  2084.         {

  2085.         case ::HOST_OPCODE_NULL:

  2086.             break;

  2087. #ifdef BUILD_BRIDGE

  2088.         case ::HOST_OPCODE_SET_VOLUME:

  2089.         case ::HOST_OPCODE_SET_DRYWET:

  2090.         case ::HOST_OPCODE_SET_BALANCE_LEFT:

  2091.         case ::HOST_OPCODE_SET_BALANCE_RIGHT:

  2092.         case ::HOST_OPCODE_SET_PANNING:

  2093.             break;

  2094. #else

  2095.         case ::HOST_OPCODE_SET_VOLUME:

  2096.             setVolume(opt, true, true);

  2097.             break;

  2098.         case ::HOST_OPCODE_SET_DRYWET:

  2099.             setDryWet(opt, true, true);

  2100.             break;

  2101.         case ::HOST_OPCODE_SET_BALANCE_LEFT:

  2102.             setBalanceLeft(opt, true, true);

  2103.             break;

  2104.         case ::HOST_OPCODE_SET_BALANCE_RIGHT:

  2105.             setBalanceRight(opt, true, true);

  2106.             break;

  2107.         case ::HOST_OPCODE_SET_PANNING:

  2108.             setPanning(opt, true, true);

  2109.             break;

  2110. #endif

  2111.         case HOST_OPCODE_GET_PARAMETER_MIDI_CC:

  2112.         case HOST_OPCODE_SET_PARAMETER_MIDI_CC:

  2113.             // TODO

  2114.             break;

  2115.         case ::HOST_OPCODE_SET_PROCESS_PRECISION:

  2116.             // TODO

  2117.             break;

  2118.         case ::HOST_OPCODE_UPDATE_PARAMETER:

  2119.             // TODO

  2120.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2121.             break;

  2122.         case ::HOST_OPCODE_UPDATE_MIDI_PROGRAM:

  2123.             // TODO

  2124.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2125.             break;

  2126.         case ::HOST_OPCODE_RELOAD_PARAMETERS:

  2127.             reload(); // FIXME

  2128.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PARAMETERS, pData->id, -1, 0, 0.0f, nullptr);

  2129.             break;

  2130.         case ::HOST_OPCODE_RELOAD_MIDI_PROGRAMS:

  2131.             reloadPrograms(false);

  2132.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, -1, 0, 0.0f, nullptr);

  2133.             break;

  2134.         case ::HOST_OPCODE_RELOAD_ALL:

  2135.             reload();

  2136.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_ALL, pData->id, -1, 0, 0.0f, nullptr);

  2137.             break;

  2138.         case HOST_OPCODE_UI_UNAVAILABLE:

  2139.             pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, -1, 0, 0.0f, nullptr);

  2140.             break;

  2141.         }

  2142. 

  2143.         return ret;

  2144. 

  2145.         // unused for now

  2146.         (void)index;

  2147.         (void)value;

  2148.         (void)ptr;

  2149.     }

  2150. 

  2151.     // -------------------------------------------------------------------

  2152. 

  2153. public:

  2154.     static size_t getPluginCount() noexcept

  2155.     {

  2156.         return sPluginDescriptors.count();

  2157.     }

  2158. 

  2159.     static const NativePluginDescriptor* getPluginDescriptor(const size_t index) noexcept

  2160.     {

  2161.         CARLA_SAFE_ASSERT_RETURN(index < sPluginDescriptors.count(), nullptr);

  2162. 

  2163.         return sPluginDescriptors.getAt(index);

  2164.     }

  2165. 

  2166.     static void registerPlugin(const NativePluginDescriptor* desc)

  2167.     {

  2168.         sPluginDescriptors.append(desc);

  2169.     }

  2170. 

  2171.     // -------------------------------------------------------------------

  2172. 

  2173.     bool init(const char* const name, const char* const label)

  2174.     {

  2175.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2176. 

  2177.         // ---------------------------------------------------------------

  2178.         // first checks

  2179. 

  2180.         if (pData->client != nullptr)

  2181.         {

  2182.             pData->engine->setLastError("Plugin client is already registered");

  2183.             return false;

  2184.         }

  2185. 

  2186.         if (label == nullptr && label[0] != '\0')

  2187.         {

  2188.             pData->engine->setLastError("null label");

  2189.             return false;

  2190.         }

  2191. 

  2192.         // ---------------------------------------------------------------

  2193.         // get descriptor that matches label

  2194. 

  2195.         for (LinkedList<const NativePluginDescriptor*>::Itenerator it = sPluginDescriptors.begin(); it.valid(); it.next())

  2196.         {

  2197.             fDescriptor = it.getValue();

  2198. 

  2199.             CARLA_SAFE_ASSERT_BREAK(fDescriptor != nullptr);

  2200. 

  2201.             carla_debug("Check vs \"%s\"", fDescriptor->label);

  2202. 

  2203.             if (fDescriptor->label != nullptr && std::strcmp(fDescriptor->label, label) == 0)

  2204.                 break;

  2205. 

  2206.             fDescriptor = nullptr;

  2207.         }

  2208. 

  2209.         if (fDescriptor == nullptr)

  2210.         {

  2211.             pData->engine->setLastError("Invalid internal plugin");

  2212.             return false;

  2213.         }

  2214. 

  2215.         // ---------------------------------------------------------------

  2216.         // set icon

  2217. 

  2218.         if (std::strcmp(fDescriptor->label, "audiofile") == 0)

  2219.             pData->iconName = carla_strdup("file");

  2220.         else if (std::strcmp(fDescriptor->label, "midifile") == 0)

  2221.             pData->iconName = carla_strdup("file");

  2222.         else if (std::strcmp(fDescriptor->label, "sunvoxfile") == 0)

  2223.             pData->iconName = carla_strdup("file");

  2224. 

  2225.         else if (std::strcmp(fDescriptor->label, "3BandEQ") == 0)

  2226.             pData->iconName = carla_strdup("distrho");

  2227.         else if (std::strcmp(fDescriptor->label, "3BandSplitter") == 0)

  2228.             pData->iconName = carla_strdup("distrho");

  2229.         else if (std::strcmp(fDescriptor->label, "Nekobi") == 0)

  2230.             pData->iconName = carla_strdup("distrho");

  2231.         else if (std::strcmp(fDescriptor->label, "Notes") == 0)

  2232.             pData->iconName = carla_strdup("distrho");

  2233.         else if (std::strcmp(fDescriptor->label, "PingPongPan") == 0)

  2234.             pData->iconName = carla_strdup("distrho");

  2235.         else if (std::strcmp(fDescriptor->label, "StereoEnhancer") == 0)

  2236.             pData->iconName = carla_strdup("distrho");

  2237. 

  2238.         // ---------------------------------------------------------------

  2239.         // get info

  2240. 

  2241.         if (name != nullptr && name[0] != '\0')

  2242.             pData->name = pData->engine->getUniquePluginName(name);

  2243.         else if (fDescriptor->name != nullptr && fDescriptor->name[0] != '\0')

  2244.             pData->name = pData->engine->getUniquePluginName(fDescriptor->name);

  2245.         else

  2246.             pData->name = pData->engine->getUniquePluginName(label);

  2247. 

  2248.         {

  2249.             CARLA_ASSERT(fHost.uiName == nullptr);

  2250. 

  2251.             char uiName[std::strlen(pData->name)+6+1];

  2252.             std::strcpy(uiName, pData->name);

  2253.             std::strcat(uiName, " (GUI)");

  2254. 

  2255.             fHost.uiName = carla_strdup(uiName);

  2256.         }

  2257. 

  2258.         // ---------------------------------------------------------------

  2259.         // register client

  2260. 

  2261.         pData->client = pData->engine->addClient(this);

  2262. 

  2263.         if (pData->client == nullptr || ! pData->client->isOk())

  2264.         {

  2265.             pData->engine->setLastError("Failed to register plugin client");

  2266.             return false;

  2267.         }

  2268. 

  2269.         // ---------------------------------------------------------------

  2270.         // initialize plugin

  2271. 

  2272.         fHandle = fDescriptor->instantiate(&fHost);

  2273. 

  2274.         if (fHandle == nullptr)

  2275.         {

  2276.             pData->engine->setLastError("Plugin failed to initialize");

  2277.             return false;

  2278.         }

  2279. 

  2280.         // ---------------------------------------------------------------

  2281.         // load plugin settings

  2282. 

  2283.         {

  2284.             const bool hasMidiProgs(fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_count(fHandle) > 0);

  2285. 

  2286.             // set default options

  2287.             pData->options = 0x0;

  2288. 

  2289.             if (hasMidiProgs && (fDescriptor->supports & ::PLUGIN_SUPPORTS_PROGRAM_CHANGES) == 0)

  2290.                 pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  2291. 

  2292.             if (getMidiInCount() > 0 || (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS) != 0)

  2293.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2294. 

  2295.             if (pData->engine->getOptions().forceStereo)

  2296.                 pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2297. 

  2298.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_CHANNEL_PRESSURE)

  2299.                 pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  2300.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_NOTE_AFTERTOUCH)

  2301.                 pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  2302.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_PITCHBEND)

  2303.                 pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  2304.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_ALL_SOUND_OFF)

  2305.                 pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  2306. 

  2307.             // set identifier string

  2308.             CarlaString identifier("Native/");

  2309.             identifier += label;

  2310.             pData->identifier = identifier.dup();

  2311. 

  2312.             // load settings

  2313.             pData->options = pData->loadSettings(pData->options, getOptionsAvailable());

  2314. 

  2315.             // ignore settings, we need this anyway

  2316.             if (getMidiInCount() > 0 || (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS) != 0)

  2317.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2318.         }

  2319. 

  2320.         return true;

  2321.     }

  2322. 

  2323.     class ScopedInitializer

  2324.     {

  2325.     public:

  2326.         ScopedInitializer()

  2327.         {

  2328.             carla_register_all_plugins();

  2329.         }

  2330. 

  2331.         ~ScopedInitializer()

  2332.         {

  2333.             sPluginDescriptors.clear();

  2334.         }

  2335.     };

  2336. 

  2337. private:

  2338.     NativePluginHandle   fHandle;

  2339.     NativePluginHandle   fHandle2;

  2340.     NativeHostDescriptor fHost;

  2341.     const NativePluginDescriptor* fDescriptor;

  2342. 

  2343.     bool fIsProcessing;

  2344.     bool fIsUiVisible;

  2345. 

  2346.     float**         fAudioInBuffers;

  2347.     float**         fAudioOutBuffers;

  2348.     uint32_t        fMidiEventCount;

  2349.     NativeMidiEvent fMidiEvents[kPluginMaxMidiEvents*2];

  2350. 

  2351.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  2352. 

  2353.     NativePluginMidiData fMidiIn;

  2354.     NativePluginMidiData fMidiOut;

  2355. 

  2356.     NativeTimeInfo fTimeInfo;

  2357. 

  2358.     static LinkedList<const NativePluginDescriptor*> sPluginDescriptors;

  2359. 

  2360.     // -------------------------------------------------------------------

  2361. 

  2362.     #define handlePtr ((NativePlugin*)handle)

  2363. 

  2364.     static uint32_t carla_host_get_buffer_size(NativeHostHandle handle) noexcept

  2365.     {

  2366.         return handlePtr->handleGetBufferSize();

  2367.     }

  2368. 

  2369.     static double carla_host_get_sample_rate(NativeHostHandle handle) noexcept

  2370.     {

  2371.         return handlePtr->handleGetSampleRate();

  2372.     }

  2373. 

  2374.     static bool carla_host_is_offline(NativeHostHandle handle) noexcept

  2375.     {

  2376.         return handlePtr->handleIsOffline();

  2377.     }

  2378. 

  2379.     static const NativeTimeInfo* carla_host_get_time_info(NativeHostHandle handle) noexcept

  2380.     {

  2381.         return handlePtr->handleGetTimeInfo();

  2382.     }

  2383. 

  2384.     static bool carla_host_write_midi_event(NativeHostHandle handle, const NativeMidiEvent* event)

  2385.     {

  2386.         return handlePtr->handleWriteMidiEvent(event);

  2387.     }

  2388. 

  2389.     static void carla_host_ui_parameter_changed(NativeHostHandle handle, uint32_t index, float value)

  2390.     {

  2391.         handlePtr->handleUiParameterChanged(index, value);

  2392.     }

  2393. 

  2394.     static void carla_host_ui_custom_data_changed(NativeHostHandle handle, const char* key, const char* value)

  2395.     {

  2396.         handlePtr->handleUiCustomDataChanged(key, value);

  2397.     }

  2398. 

  2399.     static void carla_host_ui_closed(NativeHostHandle handle)

  2400.     {

  2401.         handlePtr->handleUiClosed();

  2402.     }

  2403. 

  2404.     static const char* carla_host_ui_open_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2405.     {

  2406.         return handlePtr->handleUiOpenFile(isDir, title, filter);

  2407.     }

  2408. 

  2409.     static const char* carla_host_ui_save_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2410.     {

  2411.         return handlePtr->handleUiSaveFile(isDir, title, filter);

  2412.     }

  2413. 

  2414.     static intptr_t carla_host_dispatcher(NativeHostHandle handle, NativeHostDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  2415.     {

  2416.         return handlePtr->handleDispatcher(opcode, index, value, ptr, opt);

  2417.     }

  2418. 

  2419.     #undef handlePtr

  2420. 

  2421.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(NativePlugin)

  2422. };

  2423. 

  2424. LinkedList<const NativePluginDescriptor*> NativePlugin::sPluginDescriptors;

  2425. 

  2426. static const NativePlugin::ScopedInitializer _si;

  2427. 

  2428. CARLA_BACKEND_END_NAMESPACE

  2429. 

  2430. void carla_register_native_plugin(const NativePluginDescriptor* desc)

  2431. {

  2432.     CARLA_BACKEND_USE_NAMESPACE

  2433.     NativePlugin::registerPlugin(desc);

  2434. }

  2435. 

  2436. #endif // WANT_NATIVE

  2437. 

  2438. // -----------------------------------------------------------------------

  2439. 

  2440. CARLA_BACKEND_START_NAMESPACE

  2441. 

  2442. #ifdef WANT_NATIVE

  2443. size_t CarlaPlugin::getNativePluginCount() noexcept

  2444. {

  2445.     return NativePlugin::getPluginCount();

  2446. }

  2447. 

  2448. const NativePluginDescriptor* CarlaPlugin::getNativePluginDescriptor(const size_t index) noexcept

  2449. {

  2450.     return NativePlugin::getPluginDescriptor(index);

  2451. }

  2452. #endif

  2453. 

  2454. // -----------------------------------------------------------------------

  2455. 

  2456. CarlaPlugin* CarlaPlugin::newNative(const Initializer& init)

  2457. {

  2458.     carla_debug("CarlaPlugin::newNative({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "})", init.engine, init.filename, init.name, init.label, init.uniqueId);

  2459. 

  2460. #ifdef WANT_NATIVE

  2461.     NativePlugin* const plugin(new NativePlugin(init.engine, init.id));

  2462. 

  2463.     if (! plugin->init(init.name, init.label))

  2464.     {

  2465.         delete plugin;

  2466.         return nullptr;

  2467.     }

  2468. 

  2469.     plugin->reload();

  2470. 

  2471.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && ! plugin->canRunInRack())

  2472.     {

  2473.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo Internal plugins, sorry!");

  2474.         delete plugin;

  2475.         return nullptr;

  2476.     }

  2477. 

  2478.     return plugin;

  2479. #else

  2480.     init.engine->setLastError("Internal plugins support not available");

  2481.     return nullptr;

  2482. #endif

  2483. }

  2484. 

  2485. CARLA_BACKEND_END_NAMESPACE

  2486. 

  2487. // -----------------------------------------------------------------------