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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. #include "CarlaMathUtils.hpp"

  22. #include "CarlaNative.h"

  23. 

  24. #include "juce_core.h"

  25. 

  26. using juce::String;

  27. using juce::StringArray;

  28. 

  29. // -----------------------------------------------------

  30. 

  31. static LinkedList<const NativePluginDescriptor*> gPluginDescriptors;

  32. 

  33. void carla_register_native_plugin(const NativePluginDescriptor* desc)

  34. {

  35.     gPluginDescriptors.append(desc);

  36. }

  37. 

  38. // -----------------------------------------------------

  39. 

  40. CARLA_BACKEND_START_NAMESPACE

  41. 

  42. // -----------------------------------------------------

  43. 

  44. struct NativePluginMidiData {

  45.     uint32_t  count;

  46.     uint32_t* indexes;

  47.     CarlaEngineEventPort** ports;

  48. 

  49.     NativePluginMidiData() noexcept

  50.         : count(0),

  51.           indexes(nullptr),

  52.           ports(nullptr) {}

  53. 

  54.     ~NativePluginMidiData() noexcept

  55.     {

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

  57.         CARLA_SAFE_ASSERT(indexes == nullptr);

  58.         CARLA_SAFE_ASSERT(ports == nullptr);

  59.     }

  60. 

  61.     void createNew(const uint32_t newCount)

  62.     {

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

  64.         CARLA_SAFE_ASSERT_RETURN(indexes == nullptr,);

  65.         CARLA_SAFE_ASSERT_RETURN(ports == nullptr,);

  66.         CARLA_SAFE_ASSERT_RETURN(newCount > 0,);

  67. 

  68.         indexes = new uint32_t[newCount];

  69.         ports   = new CarlaEngineEventPort*[newCount];

  70.         count   = newCount;

  71. 

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

  73.             indexes[i] = 0;

  74. 

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

  76.             ports[i] = nullptr;

  77.     }

  78. 

  79.     void clear() noexcept

  80.     {

  81.         if (ports != nullptr)

  82.         {

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

  84.             {

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

  86.                 {

  87.                     delete ports[i];

  88.                     ports[i] = nullptr;

  89.                 }

  90.             }

  91. 

  92.             delete[] ports;

  93.             ports = nullptr;

  94.         }

  95. 

  96.         if (indexes != nullptr)

  97.         {

  98.             delete[] indexes;

  99.             indexes = nullptr;

  100.         }

  101. 

  102.         count = 0;

  103.     }

  104. 

  105.     void initBuffers() const noexcept

  106.     {

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

  108.         {

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

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

  111.         }

  112.     }

  113. 

  114.     CARLA_DECLARE_NON_COPY_STRUCT(NativePluginMidiData)

  115. };

  116. 

  117. // -----------------------------------------------------

  118. 

  119. static const

  120. struct ScopedInitializer {

  121.     ScopedInitializer()

  122.     {

  123.         carla_register_all_plugins();

  124.     }

  125. 

  126.     ~ScopedInitializer()

  127.     {

  128.         gPluginDescriptors.clear();

  129.     }

  130. } _si;

  131. 

  132. // -----------------------------------------------------

  133. 

  134. class NativePlugin : public CarlaPlugin

  135. {

  136. public:

  137.     NativePlugin(CarlaEngine* const engine, const uint id)

  138.         : CarlaPlugin(engine, id),

  139.           fHandle(nullptr),

  140.           fHandle2(nullptr),

  141.           fHost(),

  142.           fDescriptor(nullptr),

  143.           fIsProcessing(false),

  144.           fIsUiVisible(false),

  145.           fAudioInBuffers(nullptr),

  146.           fAudioOutBuffers(nullptr),

  147.           fMidiEventCount(0),

  148.           fMidiIn(),

  149.           fMidiOut(),

  150.           fTimeInfo(),

  151.           leakDetector_NativePlugin()

  152.     {

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

  154. 

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

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

  157.         carla_zeroStruct<NativeTimeInfo>(fTimeInfo);

  158. 

  159.         fHost.handle      = this;

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

  161.         fHost.uiName      = nullptr;

  162.         fHost.uiParentId  = engine->getOptions().frontendWinId;

  163. 

  164.         fHost.get_buffer_size        = carla_host_get_buffer_size;

  165.         fHost.get_sample_rate        = carla_host_get_sample_rate;

  166.         fHost.is_offline             = carla_host_is_offline;

  167.         fHost.get_time_info          = carla_host_get_time_info;

  168.         fHost.write_midi_event       = carla_host_write_midi_event;

  169.         fHost.ui_parameter_changed   = carla_host_ui_parameter_changed;

  170.         fHost.ui_custom_data_changed = carla_host_ui_custom_data_changed;

  171.         fHost.ui_closed              = carla_host_ui_closed;

  172.         fHost.ui_open_file           = carla_host_ui_open_file;

  173.         fHost.ui_save_file           = carla_host_ui_save_file;

  174.         fHost.dispatcher             = carla_host_dispatcher;

  175.     }

  176. 

  177.     ~NativePlugin() override

  178.     {

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

  180. 

  181.         // close UI

  182.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  183.         {

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

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

  186. 

  187.             pData->transientTryCounter = 0;

  188.         }

  189. 

  190.         pData->singleMutex.lock();

  191.         pData->masterMutex.lock();

  192. 

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

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

  195. 

  196.         CARLA_ASSERT(! fIsProcessing);

  197. 

  198.         if (pData->active)

  199.         {

  200.             deactivate();

  201.             pData->active = false;

  202.         }

  203. 

  204.         if (fDescriptor != nullptr)

  205.         {

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

  207.             {

  208.                 if (fHandle != nullptr)

  209.                     fDescriptor->cleanup(fHandle);

  210.                 if (fHandle2 != nullptr)

  211.                     fDescriptor->cleanup(fHandle2);

  212.             }

  213. 

  214.             fHandle  = nullptr;

  215.             fHandle2 = nullptr;

  216.             fDescriptor = nullptr;

  217.         }

  218. 

  219.         if (fHost.resourceDir != nullptr)

  220.         {

  221.             delete[] fHost.resourceDir;

  222.             fHost.resourceDir = nullptr;

  223.         }

  224. 

  225.         if (fHost.uiName != nullptr)

  226.         {

  227.             delete[] fHost.uiName;

  228.             fHost.uiName = nullptr;

  229.         }

  230. 

  231.         clearBuffers();

  232.     }

  233. 

  234.     // -------------------------------------------------------------------

  235.     // Information (base)

  236. 

  237.     PluginType getType() const noexcept override

  238.     {

  239.         return PLUGIN_INTERNAL;

  240.     }

  241. 

  242.     PluginCategory getCategory() const noexcept override

  243.     {

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

  245. 

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

  247.     }

  248. 

  249.     // -------------------------------------------------------------------

  250.     // Information (count)

  251. 

  252.     uint32_t getMidiInCount() const noexcept override

  253.     {

  254.         return fMidiIn.count;

  255.     }

  256. 

  257.     uint32_t getMidiOutCount() const noexcept override

  258.     {

  259.         return fMidiOut.count;

  260.     }

  261. 

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

  263.     {

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

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

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

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

  268. 

  269.         // FIXME - try

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

  271.             return param->scalePointCount;

  272. 

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

  274.         return 0;

  275.     }

  276. 

  277.     // -------------------------------------------------------------------

  278.     // Information (current data)

  279. 

  280.     // nothing

  281. 

  282.     // -------------------------------------------------------------------

  283.     // Information (per-plugin data)

  284. 

  285.     uint getOptionsAvailable() const noexcept override

  286.     {

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

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

  289. 

  290.         // FIXME - try

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

  292. 

  293.         uint options = 0x0;

  294. 

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

  296.             options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  297. 

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

  299.             options |= PLUGIN_OPTION_FIXED_BUFFERS;

  300. 

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

  302.         {

  303.             if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  304.                 options |= PLUGIN_OPTION_FORCE_STEREO;

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

  306.                 options |= PLUGIN_OPTION_FORCE_STEREO;

  307.         }

  308. 

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

  310.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

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

  312.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

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

  314.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

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

  316.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

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

  318.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  319. 

  320.         return options;

  321.     }

  322. 

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

  324.     {

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

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

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

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

  329. 

  330.         // FIXME - try

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

  332.     }

  333. 

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

  335.     {

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

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

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

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

  340. 

  341.         // FIXME - try

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

  343.         {

  344.             CARLA_SAFE_ASSERT_RETURN(scalePointId < param->scalePointCount, 0.0f);

  345. 

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

  347.             return scalePoint->value;

  348.         }

  349. 

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

  351.         return 0.0f;

  352.     }

  353. 

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

  355.     {

  356.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  357. 

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

  359.         {

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

  361.             return;

  362.         }

  363. 

  364.         CarlaPlugin::getLabel(strBuf);

  365.     }

  366. 

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

  368.     {

  369.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  370. 

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

  372.         {

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

  374.             return;

  375.         }

  376. 

  377.         CarlaPlugin::getMaker(strBuf);

  378.     }

  379. 

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

  381.     {

  382.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  383. 

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

  385.         {

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

  387.             return;

  388.         }

  389. 

  390.         CarlaPlugin::getCopyright(strBuf);

  391.     }

  392. 

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

  394.     {

  395.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  396. 

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

  398.         {

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

  400.             return;

  401.         }

  402. 

  403.         CarlaPlugin::getRealName(strBuf);

  404.     }

  405. 

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

  407.     {

  408.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  410.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  412. 

  413.         // FIXME - try

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

  415.         {

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

  417.             {

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

  419.                 return;

  420.             }

  421. 

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

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

  424.         }

  425. 

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

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

  428.     }

  429. 

  430.     void getParameterText(const uint32_t parameterId, char* const strBuf) const noexcept override

  431.     {

  432.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

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

  435.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  437. 

  438.         // FIXME - try

  439.         if (const char* const text = fDescriptor->get_parameter_text(fHandle, parameterId /*, fDescriptor->get_parameter_value(fHandle, parameterId)*/))

  440.         {

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

  442.             return;

  443.         }

  444. 

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

  446.         CarlaPlugin::getParameterText(parameterId, strBuf);

  447.     }

  448. 

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

  450.     {

  451.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  453.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  455. 

  456.         // FIXME - try

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

  458.         {

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

  460.             {

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

  462.                 return;

  463.             }

  464. 

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

  466.         }

  467. 

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

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

  470.     }

  471. 

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

  473.     {

  474.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  476.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  478. 

  479.         // FIXME - try

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

  481.         {

  482.             CARLA_SAFE_ASSERT_RETURN(scalePointId < param->scalePointCount,);

  483. 

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

  485. 

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

  487.             {

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

  489.                 return;

  490.             }

  491. 

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

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

  494.         }

  495. 

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

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

  498.     }

  499. 

  500.     // -------------------------------------------------------------------

  501.     // Set data (state)

  502. 

  503.     void prepareForSave() override

  504.     {

  505.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  506.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  507. 

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

  509.         {

  510.             char strBuf[STR_MAX+1];

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

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

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

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

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

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

  517. 

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

  519.         }

  520. 

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

  522.             return;

  523. 

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

  525.         {

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

  527.             std::free(data);

  528.         }

  529.     }

  530. 

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

  532.     // Set data (internal stuff)

  533. 

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

  535.     {

  536.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  537.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  539. 

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

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

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

  543. 

  544.         if (fHost.uiName != nullptr)

  545.             delete[] fHost.uiName;

  546.         fHost.uiName = carla_strdup(uiName);

  547. 

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

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

  550. 

  551.         CarlaPlugin::setName(newName);

  552.     }

  553. 

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

  555.     {

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

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

  558. 

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

  560.     }

  561. 

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

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

  564. 

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

  566.     {

  567.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  569.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  571. 

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

  573. 

  574.         // FIXME - try

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

  576. 

  577.         if (fHandle2 != nullptr)

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

  579. 

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

  581.     }

  582. 

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

  584.     {

  585.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  586.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

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

  589.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

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

  591. 

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

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

  594. 

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

  596.         {

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

  598.             {

  599.                 const ScopedSingleProcessLocker spl(this, true);

  600. 

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

  602. 

  603.                 if (fHandle2 != nullptr)

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

  605.             }

  606.         }

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

  608.         {

  609.             StringArray midiProgramList(StringArray::fromTokens(value, ":", ""));

  610. 

  611.             if (midiProgramList.size() == MAX_MIDI_CHANNELS)

  612.             {

  613.                 uint8_t channel = 0;

  614.                 for (String *it=midiProgramList.begin(), *end=midiProgramList.end(); it != end; ++it)

  615.                 {

  616.                     const int index(it->getIntValue());

  617. 

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

  619.                     {

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

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

  622. 

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

  624. 

  625.                         if (fHandle2 != nullptr)

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

  627. 

  628.                         fCurMidiProgs[channel] = index;

  629. 

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

  631.                         {

  632.                             pData->midiprog.current = index;

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

  634.                         }

  635.                     }

  636. 

  637.                     ++channel;

  638.                 }

  639.                 CARLA_SAFE_ASSERT(channel == MAX_MIDI_CHANNELS);

  640.             }

  641.         }

  642.         else

  643.         {

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

  645.             {

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

  647. 

  648.                 if (fHandle2 != nullptr)

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

  650.             }

  651. 

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

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

  654.         }

  655. 

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

  657.     }

  658. 

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

  660.     {

  661.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  662.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  664. 

  665.         // TODO, put into check below

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

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

  668. 

  669.         if (index >= 0)

  670.         {

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

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

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

  674. 

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

  676. 

  677.             try {

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

  679.             } catch(...) {}

  680. 

  681.             if (fHandle2 != nullptr)

  682.             {

  683.                 try {

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

  685.                 } catch(...) {}

  686.             }

  687. 

  688.             fCurMidiProgs[channel] = index;

  689.         }

  690. 

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

  692.     }

  693. 

  694.     // -------------------------------------------------------------------

  695.     // Set ui stuff

  696. 

  697.     void showCustomUI(const bool yesNo) override

  698.     {

  699.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  700.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  701. 

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

  703.             return;

  704. 

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

  706. 

  707.         if (fIsUiVisible == yesNo)

  708.             return;

  709. 

  710.         fIsUiVisible = yesNo;

  711. 

  712.         if (! yesNo)

  713.         {

  714.             pData->transientTryCounter = 0;

  715.             return;

  716.         }

  717. 

  718. #ifndef BUILD_BRIDGE

  719.         if ((fDescriptor->hints & ::PLUGIN_USES_PARENT_ID) == 0 && std::strstr(fDescriptor->label, "file") == nullptr)

  720.             pData->tryTransient();

  721. #endif

  722. 

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

  724.         {

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

  726.             {

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

  728. 

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

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

  731.             }

  732.         }

  733. 

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

  735.         {

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

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

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

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

  740. 

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

  742.         }

  743. 

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

  745.         {

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

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

  748.         }

  749.     }

  750. 

  751.     void idle() override

  752.     {

  753.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  754.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  755. 

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

  757.             fDescriptor->ui_idle(fHandle);

  758. 

  759.         CarlaPlugin::idle();

  760.     }

  761. 

  762.     // -------------------------------------------------------------------

  763.     // Plugin state

  764. 

  765.     void reload() override

  766.     {

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

  768.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  769.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  771. 

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

  773. 

  774.         // Safely disable plugin for reload

  775.         const ScopedDisabler sd(this);

  776. 

  777.         if (pData->active)

  778.             deactivate();

  779. 

  780.         clearBuffers();

  781. 

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

  783. 

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

  785. 

  786.         bool forcedStereoIn, forcedStereoOut;

  787.         forcedStereoIn = forcedStereoOut = false;

  788. 

  789.         bool needsCtrlIn, needsCtrlOut;

  790.         needsCtrlIn = needsCtrlOut = false;

  791. 

  792.         aIns   = fDescriptor->audioIns;

  793.         aOuts  = fDescriptor->audioOuts;

  794.         mIns   = fDescriptor->midiIns;

  795.         mOuts  = fDescriptor->midiOuts;

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

  797. 

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

  799.         {

  800.             if (fHandle2 == nullptr)

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

  802. 

  803.             if (fHandle2 != nullptr)

  804.             {

  805.                 if (aIns == 1)

  806.                 {

  807.                     aIns = 2;

  808.                     forcedStereoIn = true;

  809.                 }

  810. 

  811.                 if (aOuts == 1)

  812.                 {

  813.                     aOuts = 2;

  814.                     forcedStereoOut = true;

  815.                 }

  816.             }

  817.         }

  818. 

  819.         if (aIns > 0)

  820.         {

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

  822.             fAudioInBuffers = new float*[aIns];

  823. 

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

  825.                 fAudioInBuffers[i] = nullptr;

  826.         }

  827. 

  828.         if (aOuts > 0)

  829.         {

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

  831.             fAudioOutBuffers = new float*[aOuts];

  832.             needsCtrlIn = true;

  833. 

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

  835.                 fAudioOutBuffers[i] = nullptr;

  836.         }

  837. 

  838.         if (mIns > 0)

  839.         {

  840.             fMidiIn.createNew(mIns);

  841.             needsCtrlIn = (mIns == 1);

  842.         }

  843. 

  844.         if (mOuts > 0)

  845.         {

  846.             fMidiOut.createNew(mOuts);

  847.             needsCtrlOut = (mOuts == 1);

  848.         }

  849. 

  850.         if (params > 0)

  851.         {

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

  853.         }

  854. 

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

  856.         CarlaString portName;

  857. 

  858.         // Audio Ins

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

  860.         {

  861.             portName.clear();

  862. 

  863.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  864.             {

  865.                 portName  = pData->name;

  866.                 portName += ":";

  867.             }

  868. 

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

  870.             {

  871.                 portName += "input_";

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

  873.             }

  874.             else

  875.                 portName += "input";

  876. 

  877.             portName.truncate(portNameSize);

  878. 

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

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

  881. 

  882.             if (forcedStereoIn)

  883.             {

  884.                 portName += "_2";

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

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

  887.                 break;

  888.             }

  889.         }

  890. 

  891.         // Audio Outs

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

  893.         {

  894.             portName.clear();

  895. 

  896.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  897.             {

  898.                 portName  = pData->name;

  899.                 portName += ":";

  900.             }

  901. 

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

  903.             {

  904.                 portName += "output_";

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

  906.             }

  907.             else

  908.                 portName += "output";

  909. 

  910.             portName.truncate(portNameSize);

  911. 

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

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

  914. 

  915.             if (forcedStereoOut)

  916.             {

  917.                 portName += "_2";

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

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

  920.                 break;

  921.             }

  922.         }

  923. 

  924.         // MIDI Input (only if multiple)

  925.         if (mIns > 1)

  926.         {

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

  928.             {

  929.                 portName.clear();

  930. 

  931.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  932.                 {

  933.                     portName  = pData->name;

  934.                     portName += ":";

  935.                 }

  936. 

  937.                 portName += "midi-in_";

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

  939.                 portName.truncate(portNameSize);

  940. 

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

  942.                 fMidiIn.indexes[j] = j;

  943.             }

  944.         }

  945. 

  946.         // MIDI Output (only if multiple)

  947.         if (mOuts > 1)

  948.         {

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

  950.             {

  951.                 portName.clear();

  952. 

  953.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  954.                 {

  955.                     portName  = pData->name;

  956.                     portName += ":";

  957.                 }

  958. 

  959.                 portName += "midi-out_";

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

  961.                 portName.truncate(portNameSize);

  962. 

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

  964.                 fMidiOut.indexes[j] = j;

  965.             }

  966.         }

  967. 

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

  969.         {

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

  971. 

  972.             CARLA_SAFE_ASSERT_CONTINUE(paramInfo != nullptr);

  973. 

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

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

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

  977. 

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

  979. 

  980.             // min value

  981.             min = paramInfo->ranges.min;

  982. 

  983.             // max value

  984.             max = paramInfo->ranges.max;

  985. 

  986.             if (min > max)

  987.                 max = min;

  988.             else if (max < min)

  989.                 min = max;

  990. 

  991.             if (carla_compareFloats(min, max))

  992.             {

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

  994.                 max = min + 0.1f;

  995.             }

  996. 

  997.             // default value

  998.             def = paramInfo->ranges.def;

  999. 

  1000.             if (def < min)

  1001.                 def = min;

  1002.             else if (def > max)

  1003.                 def = max;

  1004. 

  1005.             if (paramInfo->hints & ::PARAMETER_USES_SAMPLE_RATE)

  1006.             {

  1007.                 min *= sampleRate;

  1008.                 max *= sampleRate;

  1009.                 def *= sampleRate;

  1010.                 pData->param.data[j].hints |= PARAMETER_USES_SAMPLERATE;

  1011.             }

  1012. 

  1013.             if (paramInfo->hints & ::PARAMETER_IS_BOOLEAN)

  1014.             {

  1015.                 step = max - min;

  1016.                 stepSmall = step;

  1017.                 stepLarge = step;

  1018.                 pData->param.data[j].hints |= PARAMETER_IS_BOOLEAN;

  1019.             }

  1020.             else if (paramInfo->hints & ::PARAMETER_IS_INTEGER)

  1021.             {

  1022.                 step = 1.0f;

  1023.                 stepSmall = 1.0f;

  1024.                 stepLarge = 10.0f;

  1025.                 pData->param.data[j].hints |= PARAMETER_IS_INTEGER;

  1026.             }

  1027.             else

  1028.             {

  1029.                 float range = max - min;

  1030.                 step = range/100.0f;

  1031.                 stepSmall = range/1000.0f;

  1032.                 stepLarge = range/10.0f;

  1033.             }

  1034. 

  1035.             if (paramInfo->hints & ::PARAMETER_IS_OUTPUT)

  1036.             {

  1037.                 pData->param.data[j].type = PARAMETER_OUTPUT;

  1038.                 needsCtrlOut = true;

  1039.             }

  1040.             else

  1041.             {

  1042.                 pData->param.data[j].type = PARAMETER_INPUT;

  1043.                 needsCtrlIn = true;

  1044.             }

  1045. 

  1046.             // extra parameter hints

  1047.             if (paramInfo->hints & ::PARAMETER_IS_ENABLED)

  1048.                 pData->param.data[j].hints |= PARAMETER_IS_ENABLED;

  1049. 

  1050.             if (paramInfo->hints & ::PARAMETER_IS_AUTOMABLE)

  1051.                 pData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE;

  1052. 

  1053.             if (paramInfo->hints & ::PARAMETER_IS_LOGARITHMIC)

  1054.                 pData->param.data[j].hints |= PARAMETER_IS_LOGARITHMIC;

  1055. 

  1056.             if (paramInfo->hints & ::PARAMETER_USES_SCALEPOINTS)

  1057.                 pData->param.data[j].hints |= PARAMETER_USES_SCALEPOINTS;

  1058. 

  1059.             if (paramInfo->hints & ::PARAMETER_USES_CUSTOM_TEXT)

  1060.                 pData->param.data[j].hints |= PARAMETER_USES_CUSTOM_TEXT;

  1061. 

  1062.             pData->param.ranges[j].min = min;

  1063.             pData->param.ranges[j].max = max;

  1064.             pData->param.ranges[j].def = def;

  1065.             pData->param.ranges[j].step = step;

  1066.             pData->param.ranges[j].stepSmall = stepSmall;

  1067.             pData->param.ranges[j].stepLarge = stepLarge;

  1068.         }

  1069. 

  1070.         if (needsCtrlIn)

  1071.         {

  1072.             portName.clear();

  1073. 

  1074.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1075.             {

  1076.                 portName  = pData->name;

  1077.                 portName += ":";

  1078.             }

  1079. 

  1080.             portName += "events-in";

  1081.             portName.truncate(portNameSize);

  1082. 

  1083.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  1084.         }

  1085. 

  1086.         if (needsCtrlOut)

  1087.         {

  1088.             portName.clear();

  1089. 

  1090.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1091.             {

  1092.                 portName  = pData->name;

  1093.                 portName += ":";

  1094.             }

  1095. 

  1096.             portName += "events-out";

  1097.             portName.truncate(portNameSize);

  1098. 

  1099.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  1100.         }

  1101. 

  1102.         if (forcedStereoIn || forcedStereoOut)

  1103.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1104.         else

  1105.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  1106. 

  1107.         // plugin hints

  1108.         pData->hints = 0x0;

  1109. 

  1110.         if (aOuts > 0 && (aIns == aOuts || aIns == 1))

  1111.             pData->hints |= PLUGIN_CAN_DRYWET;

  1112. 

  1113.         if (aOuts > 0)

  1114.             pData->hints |= PLUGIN_CAN_VOLUME;

  1115. 

  1116.         if (aOuts >= 2 && aOuts % 2 == 0)

  1117.             pData->hints |= PLUGIN_CAN_BALANCE;

  1118. 

  1119.         // native plugin hints

  1120.         if (fDescriptor->hints & ::PLUGIN_IS_RTSAFE)

  1121.             pData->hints |= PLUGIN_IS_RTSAFE;

  1122.         if (fDescriptor->hints & ::PLUGIN_IS_SYNTH)

  1123.             pData->hints |= PLUGIN_IS_SYNTH;

  1124.         if (fDescriptor->hints & ::PLUGIN_HAS_UI)

  1125.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  1126.         if (fDescriptor->hints & ::PLUGIN_NEEDS_SINGLE_THREAD)

  1127.             pData->hints |= PLUGIN_NEEDS_SINGLE_THREAD;

  1128.         if (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS)

  1129.             pData->hints |= PLUGIN_NEEDS_FIXED_BUFFERS;

  1130. 

  1131.         // extra plugin hints

  1132.         pData->extraHints = 0x0;

  1133. 

  1134.         if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0) && mIns <= 1 && mOuts <= 1)

  1135.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1136. 

  1137.         if (fDescriptor->hints & ::PLUGIN_USES_MULTI_PROGS)

  1138.             pData->extraHints |= PLUGIN_EXTRA_HINT_USES_MULTI_PROGS;

  1139. 

  1140.         bufferSizeChanged(pData->engine->getBufferSize());

  1141.         reloadPrograms(true);

  1142. 

  1143.         if (pData->active)

  1144.             activate();

  1145. 

  1146.         carla_debug("NativePlugin::reload() - end");

  1147.     }

  1148. 

  1149.     void reloadPrograms(const bool doInit) override

  1150.     {

  1151.         carla_debug("NativePlugin::reloadPrograms(%s)", bool2str(doInit));

  1152.         uint32_t i, oldCount  = pData->midiprog.count;

  1153.         const int32_t current = pData->midiprog.current;

  1154. 

  1155.         // Delete old programs

  1156.         pData->midiprog.clear();

  1157. 

  1158.         // Query new programs

  1159.         uint32_t count = 0;

  1160.         if (fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_info != nullptr && fDescriptor->set_midi_program != nullptr)

  1161.             count = fDescriptor->get_midi_program_count(fHandle);

  1162. 

  1163.         if (count > 0)

  1164.         {

  1165.             pData->midiprog.createNew(count);

  1166. 

  1167.             // Update data

  1168.             for (i=0; i < count; ++i)

  1169.             {

  1170.                 const NativeMidiProgram* const mpDesc(fDescriptor->get_midi_program_info(fHandle, i));

  1171.                 CARLA_SAFE_ASSERT_CONTINUE(mpDesc != nullptr);

  1172. 

  1173.                 pData->midiprog.data[i].bank    = mpDesc->bank;

  1174.                 pData->midiprog.data[i].program = mpDesc->program;

  1175.                 pData->midiprog.data[i].name    = carla_strdup(mpDesc->name);

  1176.             }

  1177.         }

  1178. 

  1179. #ifndef BUILD_BRIDGE

  1180.         // Update OSC Names

  1181.         if (pData->engine->isOscControlRegistered())

  1182.         {

  1183.             pData->engine->oscSend_control_set_midi_program_count(pData->id, count);

  1184. 

  1185.             for (i=0; i < count; ++i)

  1186.                 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);

  1187.         }

  1188. #endif

  1189. 

  1190.         if (doInit)

  1191.         {

  1192.             if (count > 0)

  1193.                 setMidiProgram(0, false, false, false);

  1194.         }

  1195.         else

  1196.         {

  1197.             // Check if current program is invalid

  1198.             bool programChanged = false;

  1199. 

  1200.             if (count == oldCount+1)

  1201.             {

  1202.                 // one midi program added, probably created by user

  1203.                 pData->midiprog.current = static_cast<int32_t>(oldCount);

  1204.                 programChanged = true;

  1205.             }

  1206.             else if (current < 0 && count > 0)

  1207.             {

  1208.                 // programs exist now, but not before

  1209.                 pData->midiprog.current = 0;

  1210.                 programChanged = true;

  1211.             }

  1212.             else if (current >= 0 && count == 0)

  1213.             {

  1214.                 // programs existed before, but not anymore

  1215.                 pData->midiprog.current = -1;

  1216.                 programChanged = true;

  1217.             }

  1218.             else if (current >= static_cast<int32_t>(count))

  1219.             {

  1220.                 // current midi program > count

  1221.                 pData->midiprog.current = 0;

  1222.                 programChanged = true;

  1223.             }

  1224.             else

  1225.             {

  1226.                 // no change

  1227.                 pData->midiprog.current = current;

  1228.             }

  1229. 

  1230.             if (programChanged)

  1231.                 setMidiProgram(pData->midiprog.current, true, true, true);

  1232. 

  1233.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1234.         }

  1235.     }

  1236. 

  1237.     // -------------------------------------------------------------------

  1238.     // Plugin processing

  1239. 

  1240.     void activate() noexcept override

  1241.     {

  1242.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1243.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1244. 

  1245.         if (fDescriptor->activate != nullptr)

  1246.         {

  1247.             try {

  1248.                 fDescriptor->activate(fHandle);

  1249.             } catch(...) {}

  1250. 

  1251.             if (fHandle2 != nullptr)

  1252.             {

  1253.                 try {

  1254.                     fDescriptor->activate(fHandle2);

  1255.                 } catch(...) {}

  1256.             }

  1257.         }

  1258.     }

  1259. 

  1260.     void deactivate() noexcept override

  1261.     {

  1262.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1263.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1264. 

  1265.         if (fDescriptor->deactivate != nullptr)

  1266.         {

  1267.             try {

  1268.                 fDescriptor->deactivate(fHandle);

  1269.             } catch(...) {}

  1270. 

  1271.             if (fHandle2 != nullptr)

  1272.             {

  1273.                 try {

  1274.                     fDescriptor->deactivate(fHandle2);

  1275.                 } catch(...) {}

  1276.             }

  1277.         }

  1278.     }

  1279. 

  1280.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames) override

  1281.     {

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

  1283.         // Check if active

  1284. 

  1285.         if (! pData->active)

  1286.         {

  1287.             // disable any output sound

  1288.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1289.                 FloatVectorOperations::clear(outBuffer[i], static_cast<int>(frames));

  1290. 

  1291.             return;

  1292.         }

  1293. 

  1294.         fMidiEventCount = 0;

  1295.         carla_zeroStruct<NativeMidiEvent>(fMidiEvents, kPluginMaxMidiEvents*2);

  1296. 

  1297.         // --------------------------------------------------------------------------------------------------------

  1298.         // Check if needs reset

  1299. 

  1300.         if (pData->needsReset)

  1301.         {

  1302.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1303.             {

  1304.                 for (uint8_t k=0, i=MAX_MIDI_CHANNELS; k < MAX_MIDI_CHANNELS; ++k)

  1305.                 {

  1306.                     fMidiEvents[k].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + k);

  1307.                     fMidiEvents[k].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1308.                     fMidiEvents[k].data[2] = 0;

  1309.                     fMidiEvents[k].size    = 3;

  1310. 

  1311.                     fMidiEvents[k+i].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + k);

  1312.                     fMidiEvents[k+i].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1313.                     fMidiEvents[k+i].data[2] = 0;

  1314.                     fMidiEvents[k+i].size    = 3;

  1315.                 }

  1316. 

  1317.                 fMidiEventCount = MAX_MIDI_CHANNELS*2;

  1318.             }

  1319.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1320.             {

  1321.                 for (uint8_t k=0; k < MAX_MIDI_NOTE; ++k)

  1322.                 {

  1323.                     fMidiEvents[k].data[0] = static_cast<uint8_t>(MIDI_STATUS_NOTE_OFF + pData->ctrlChannel);

  1324.                     fMidiEvents[k].data[1] = k;

  1325.                     fMidiEvents[k].data[2] = 0;

  1326.                     fMidiEvents[k].size    = 3;

  1327.                 }

  1328. 

  1329.                 fMidiEventCount = MAX_MIDI_NOTE;

  1330.             }

  1331. 

  1332.             pData->needsReset = false;

  1333.         }

  1334. 

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

  1336.         // Set TimeInfo

  1337. 

  1338.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1339. 

  1340.         fTimeInfo.playing = timeInfo.playing;

  1341.         fTimeInfo.frame   = timeInfo.frame;

  1342.         fTimeInfo.usecs   = timeInfo.usecs;

  1343. 

  1344.         if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1345.         {

  1346.             fTimeInfo.bbt.valid = true;

  1347. 

  1348.             fTimeInfo.bbt.bar  = timeInfo.bbt.bar;

  1349.             fTimeInfo.bbt.beat = timeInfo.bbt.beat;

  1350.             fTimeInfo.bbt.tick = timeInfo.bbt.tick;

  1351.             fTimeInfo.bbt.barStartTick = timeInfo.bbt.barStartTick;

  1352. 

  1353.             fTimeInfo.bbt.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1354.             fTimeInfo.bbt.beatType    = timeInfo.bbt.beatType;

  1355. 

  1356.             fTimeInfo.bbt.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1357.             fTimeInfo.bbt.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1358.         }

  1359.         else

  1360.             fTimeInfo.bbt.valid = false;

  1361. 

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

  1363.         // Event Input and Processing

  1364. 

  1365.         if (pData->event.portIn != nullptr)

  1366.         {

  1367.             // ----------------------------------------------------------------------------------------------------

  1368.             // MIDI Input (External)

  1369. 

  1370.             if (pData->extNotes.mutex.tryLock())

  1371.             {

  1372.                 ExternalMidiNote note = { 0, 0, 0 };

  1373. 

  1374.                 //for (RtLinkedList<ExternalMidiNote>::Itenerator it = pData->extNotes.data.begin(); it.valid(); it.next())

  1375.                 while (fMidiEventCount < kPluginMaxMidiEvents*2 && ! pData->extNotes.data.isEmpty())

  1376.                 {

  1377.                     note = pData->extNotes.data.getFirst(note, true);

  1378. 

  1379.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1380. 

  1381.                     fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>((note.velo > 0 ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF) | (note.channel & MIDI_CHANNEL_BIT));

  1382.                     fMidiEvents[fMidiEventCount].data[1] = note.note;

  1383.                     fMidiEvents[fMidiEventCount].data[2] = note.velo;

  1384.                     fMidiEvents[fMidiEventCount].size    = 3;

  1385. 

  1386.                     fMidiEventCount += 1;

  1387.                 }

  1388. 

  1389.                 pData->extNotes.mutex.unlock();

  1390. 

  1391.             } // End of MIDI Input (External)

  1392. 

  1393.             // ----------------------------------------------------------------------------------------------------

  1394.             // Event Input (System)

  1395. 

  1396. #ifndef BUILD_BRIDGE

  1397.             bool allNotesOffSent = false;

  1398. #endif

  1399.             bool sampleAccurate  = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1400. 

  1401.             uint32_t time, nEvents = pData->event.portIn->getEventCount();

  1402.             uint32_t startTime  = 0;

  1403.             uint32_t timeOffset = 0;

  1404.             uint32_t nextBankId = 0;

  1405. 

  1406.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1407.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1408. 

  1409.             for (uint32_t i=0; i < nEvents; ++i)

  1410.             {

  1411.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1412. 

  1413.                 time = event.time;

  1414. 

  1415.                 if (time >= frames)

  1416.                     continue;

  1417. 

  1418.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  1419. 

  1420.                 if (time > timeOffset && sampleAccurate)

  1421.                 {

  1422.                     if (processSingle(inBuffer, outBuffer, time - timeOffset, timeOffset))

  1423.                     {

  1424.                         startTime  = 0;

  1425.                         timeOffset = time;

  1426. 

  1427.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1428.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1429.                         else

  1430.                             nextBankId = 0;

  1431. 

  1432.                         if (fMidiEventCount > 0)

  1433.                         {

  1434.                             carla_zeroStruct<NativeMidiEvent>(fMidiEvents, fMidiEventCount);

  1435.                             fMidiEventCount = 0;

  1436.                         }

  1437.                     }

  1438.                     else

  1439.                         startTime += timeOffset;

  1440.                 }

  1441. 

  1442.                 // Control change

  1443.                 switch (event.type)

  1444.                 {

  1445.                 case kEngineEventTypeNull:

  1446.                     break;

  1447. 

  1448.                 case kEngineEventTypeControl: {

  1449.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1450. 

  1451.                     switch (ctrlEvent.type)

  1452.                     {

  1453.                     case kEngineControlEventTypeNull:

  1454.                         break;

  1455. 

  1456.                     case kEngineControlEventTypeParameter: {

  1457. #ifndef BUILD_BRIDGE

  1458.                         // Control backend stuff

  1459.                         if (event.channel == pData->ctrlChannel)

  1460.                         {

  1461.                             float value;

  1462. 

  1463.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) > 0)

  1464.                             {

  1465.                                 value = ctrlEvent.value;

  1466.                                 setDryWet(value, false, false);

  1467.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1468.                             }

  1469. 

  1470.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) > 0)

  1471.                             {

  1472.                                 value = ctrlEvent.value*127.0f/100.0f;

  1473.                                 setVolume(value, false, false);

  1474.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1475.                             }

  1476. 

  1477.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) > 0)

  1478.                             {

  1479.                                 float left, right;

  1480.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1481. 

  1482.                                 if (value < 0.0f)

  1483.                                 {

  1484.                                     left  = -1.0f;

  1485.                                     right = (value*2.0f)+1.0f;

  1486.                                 }

  1487.                                 else if (value > 0.0f)

  1488.                                 {

  1489.                                     left  = (value*2.0f)-1.0f;

  1490.                                     right = 1.0f;

  1491.                                 }

  1492.                                 else

  1493.                                 {

  1494.                                     left  = -1.0f;

  1495.                                     right = 1.0f;

  1496.                                 }

  1497. 

  1498.                                 setBalanceLeft(left, false, false);

  1499.                                 setBalanceRight(right, false, false);

  1500.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1501.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1502.                             }

  1503.                         }

  1504. #endif

  1505.                         // Control plugin parameters

  1506.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1507.                         {

  1508.                             if (pData->param.data[k].midiChannel != event.channel)

  1509.                                 continue;

  1510.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1511.                                 continue;

  1512.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1513.                                 continue;

  1514.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1515.                                 continue;

  1516. 

  1517.                             float value;

  1518. 

  1519.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1520.                             {

  1521.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1522.                             }

  1523.                             else

  1524.                             {

  1525.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1526. 

  1527.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1528.                                     value = std::rint(value);

  1529.                             }

  1530. 

  1531.                             setParameterValue(k, value, false, false, false);

  1532.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1533.                         }

  1534. 

  1535.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param <= 0x5F)

  1536.                         {

  1537.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1538.                                 continue;

  1539. 

  1540.                             fMidiEvents[fMidiEventCount].port    = 0;

  1541.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1542.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1543.                             fMidiEvents[fMidiEventCount].data[1] = static_cast<uint8_t>(ctrlEvent.param);

  1544.                             fMidiEvents[fMidiEventCount].data[2] = uint8_t(ctrlEvent.value*127.0f);

  1545.                             fMidiEvents[fMidiEventCount].size    = 3;

  1546. 

  1547.                             fMidiEventCount += 1;

  1548.                         }

  1549.                         break;

  1550.                     }

  1551. 

  1552.                     case kEngineControlEventTypeMidiBank:

  1553.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1554.                             nextBankId = ctrlEvent.param;

  1555.                         break;

  1556. 

  1557.                     case kEngineControlEventTypeMidiProgram:

  1558.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1559.                         {

  1560.                             const uint32_t nextProgramId(ctrlEvent.param);

  1561. 

  1562.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1563.                             {

  1564.                                 if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1565.                                 {

  1566.                                     fDescriptor->set_midi_program(fHandle, event.channel, nextBankId, nextProgramId);

  1567. 

  1568.                                     if (fHandle2 != nullptr)

  1569.                                         fDescriptor->set_midi_program(fHandle2, event.channel, nextBankId, nextProgramId);

  1570. 

  1571.                                     fCurMidiProgs[event.channel] = static_cast<int32_t>(k);

  1572. 

  1573.                                     if (event.channel == pData->ctrlChannel)

  1574.                                         pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, static_cast<int32_t>(k), 0, 0.0f);

  1575. 

  1576.                                     break;

  1577.                                 }

  1578.                             }

  1579.                         }

  1580.                         break;

  1581. 

  1582.                     case kEngineControlEventTypeAllSoundOff:

  1583.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1584.                         {

  1585.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1586.                                 continue;

  1587. 

  1588.                             fMidiEvents[fMidiEventCount].port    = 0;

  1589.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1590.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1591.                             fMidiEvents[fMidiEventCount].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1592.                             fMidiEvents[fMidiEventCount].data[2] = 0;

  1593.                             fMidiEvents[fMidiEventCount].size    = 3;

  1594. 

  1595.                             fMidiEventCount += 1;

  1596.                         }

  1597.                         break;

  1598. 

  1599.                     case kEngineControlEventTypeAllNotesOff:

  1600.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1601.                         {

  1602. #ifndef BUILD_BRIDGE

  1603.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1604.                             {

  1605.                                 allNotesOffSent = true;

  1606.                                 sendMidiAllNotesOffToCallback();

  1607.                             }

  1608. #endif

  1609. 

  1610.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1611.                                 continue;

  1612. 

  1613.                             fMidiEvents[fMidiEventCount].port    = 0;

  1614.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1615.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1616.                             fMidiEvents[fMidiEventCount].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1617.                             fMidiEvents[fMidiEventCount].data[2] = 0;

  1618.                             fMidiEvents[fMidiEventCount].size    = 3;

  1619. 

  1620.                             fMidiEventCount += 1;

  1621.                         }

  1622.                         break;

  1623.                     }

  1624.                     break;

  1625.                 }

  1626. 

  1627.                 case kEngineEventTypeMidi: {

  1628.                     if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1629.                         continue;

  1630. 

  1631.                     const EngineMidiEvent& midiEvent(event.midi);

  1632. 

  1633.                     uint8_t status  = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1634.                     uint8_t channel = event.channel;

  1635. 

  1636.                     if (MIDI_IS_STATUS_CHANNEL_PRESSURE(status) && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1637.                         continue;

  1638.                     if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1639.                         continue;

  1640.                     if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1641.                         continue;

  1642.                     if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1643.                         continue;

  1644. 

  1645.                     // Fix bad note-off

  1646.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1647.                         status = MIDI_STATUS_NOTE_OFF;

  1648. 

  1649.                     fMidiEvents[fMidiEventCount].port = 0;

  1650.                     fMidiEvents[fMidiEventCount].time = sampleAccurate ? startTime : time;

  1651.                     fMidiEvents[fMidiEventCount].size = midiEvent.size;

  1652. 

  1653.                     fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(status + channel);

  1654.                     fMidiEvents[fMidiEventCount].data[1] = midiEvent.data[1];

  1655.                     fMidiEvents[fMidiEventCount].data[2] = midiEvent.data[2];

  1656.                     fMidiEvents[fMidiEventCount].data[3] = midiEvent.data[3];

  1657. 

  1658.                     fMidiEventCount += 1;

  1659. 

  1660.                     if (status == MIDI_STATUS_NOTE_ON)

  1661.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, channel, midiEvent.data[1], midiEvent.data[2]);

  1662.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1663.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, channel, midiEvent.data[1], 0.0f);

  1664. 

  1665.                     break;

  1666.                 }

  1667.                 }

  1668.             }

  1669. 

  1670.             pData->postRtEvents.trySplice();

  1671. 

  1672.             if (frames > timeOffset)

  1673.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset);

  1674. 

  1675.         } // End of Event Input and Processing

  1676. 

  1677.         // --------------------------------------------------------------------------------------------------------

  1678.         // Plugin processing (no events)

  1679. 

  1680.         else

  1681.         {

  1682.             processSingle(inBuffer, outBuffer, frames, 0);

  1683. 

  1684.         } // End of Plugin processing (no events)

  1685. 

  1686.         // --------------------------------------------------------------------------------------------------------

  1687.         // Control and MIDI Output

  1688. 

  1689.         if (fMidiOut.count > 0 || pData->event.portOut != nullptr)

  1690.         {

  1691. #ifndef BUILD_BRIDGE

  1692.             float value, curValue;

  1693. 

  1694.             for (uint32_t k=0; k < pData->param.count; ++k)

  1695.             {

  1696.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1697.                     continue;

  1698. 

  1699.                 curValue = fDescriptor->get_parameter_value(fHandle, k);

  1700.                 pData->param.ranges[k].fixValue(curValue);

  1701. 

  1702.                 if (pData->param.data[k].midiCC > 0)

  1703.                 {

  1704.                     value = pData->param.ranges[k].getNormalizedValue(curValue);

  1705.                     pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), value);

  1706.                 }

  1707.             }

  1708. #endif

  1709. 

  1710.             // reverse lookup MIDI events

  1711.             for (uint32_t k = (kPluginMaxMidiEvents*2)-1; k >= fMidiEventCount; --k)

  1712.             {

  1713.                 if (fMidiEvents[k].data[0] == 0)

  1714.                     break;

  1715. 

  1716.                 const uint8_t channel = uint8_t(MIDI_GET_CHANNEL_FROM_DATA(fMidiEvents[k].data));

  1717.                 const uint8_t port    = fMidiEvents[k].port;

  1718. 

  1719.                 if (pData->event.portOut != nullptr)

  1720.                     pData->event.portOut->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].size, fMidiEvents[k].data);

  1721.                 else if (port < fMidiOut.count)

  1722.                     fMidiOut.ports[port]->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].size, fMidiEvents[k].data);

  1723.             }

  1724. 

  1725.         } // End of Control and MIDI Output

  1726.     }

  1727. 

  1728.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1729.     {

  1730.         CARLA_ASSERT(frames > 0);

  1731. 

  1732.         if (frames == 0)

  1733.             return false;

  1734. 

  1735.         if (pData->audioIn.count > 0)

  1736.         {

  1737.             CARLA_ASSERT(inBuffer != nullptr);

  1738.             if (inBuffer == nullptr)

  1739.                 return false;

  1740.         }

  1741.         if (pData->audioOut.count > 0)

  1742.         {

  1743.             CARLA_ASSERT(outBuffer != nullptr);

  1744.             if (outBuffer == nullptr)

  1745.                 return false;

  1746.         }

  1747. 

  1748.         uint32_t i, k;

  1749. 

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

  1751.         // Try lock, silence otherwise

  1752. 

  1753.         if (pData->engine->isOffline())

  1754.         {

  1755.             pData->singleMutex.lock();

  1756.         }

  1757.         else if (! pData->singleMutex.tryLock())

  1758.         {

  1759.             for (i=0; i < pData->audioOut.count; ++i)

  1760.             {

  1761.                 for (k=0; k < frames; ++k)

  1762.                     outBuffer[i][k+timeOffset] = 0.0f;

  1763.             }

  1764. 

  1765.             return false;

  1766.         }

  1767. 

  1768.         // --------------------------------------------------------------------------------------------------------

  1769.         // Reset audio buffers

  1770. 

  1771.         for (i=0; i < pData->audioIn.count; ++i)

  1772.             FloatVectorOperations::copy(fAudioInBuffers[i], inBuffer[i]+timeOffset, static_cast<int>(frames));

  1773. 

  1774.         for (i=0; i < pData->audioOut.count; ++i)

  1775.             FloatVectorOperations::clear(fAudioOutBuffers[i], static_cast<int>(frames));

  1776. 

  1777.         // --------------------------------------------------------------------------------------------------------

  1778.         // Run plugin

  1779. 

  1780.         fIsProcessing = true;

  1781. 

  1782.         if (fHandle2 == nullptr)

  1783.         {

  1784.             fDescriptor->process(fHandle, fAudioInBuffers, fAudioOutBuffers, frames, fMidiEvents, fMidiEventCount);

  1785.         }

  1786.         else

  1787.         {

  1788.             fDescriptor->process(fHandle,

  1789.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[0] : nullptr,

  1790.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[0] : nullptr,

  1791.                                  frames, fMidiEvents, fMidiEventCount);

  1792. 

  1793.             fDescriptor->process(fHandle2,

  1794.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[1] : nullptr,

  1795.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[1] : nullptr,

  1796.                                  frames, fMidiEvents, fMidiEventCount);

  1797.         }

  1798. 

  1799.         fIsProcessing = false;

  1800.         fTimeInfo.frame += frames;

  1801. 

  1802. #ifndef BUILD_BRIDGE

  1803.         // --------------------------------------------------------------------------------------------------------

  1804.         // Post-processing (dry/wet, volume and balance)

  1805. 

  1806.         {

  1807.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && ! carla_compareFloats(pData->postProc.dryWet, 1.0f);

  1808.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_compareFloats(pData->postProc.balanceLeft, -1.0f) && carla_compareFloats(pData->postProc.balanceRight, 1.0f));

  1809. 

  1810.             bool isPair;

  1811.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1812. 

  1813.             for (i=0; i < pData->audioOut.count; ++i)

  1814.             {

  1815.                 // Dry/Wet

  1816.                 if (doDryWet)

  1817.                 {

  1818.                     for (k=0; k < frames; ++k)

  1819.                     {

  1820.                         bufValue = fAudioInBuffers[(pData->audioIn.count == 1) ? 0 : i][k];

  1821.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1822.                     }

  1823.                 }

  1824. 

  1825.                 // Balance

  1826.                 if (doBalance)

  1827.                 {

  1828.                     isPair = (i % 2 == 0);

  1829. 

  1830.                     if (isPair)

  1831.                     {

  1832.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1833.                         FloatVectorOperations::copy(oldBufLeft, fAudioOutBuffers[i], static_cast<int>(frames));

  1834.                     }

  1835. 

  1836.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1837.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1838. 

  1839.                     for (k=0; k < frames; ++k)

  1840.                     {

  1841.                         if (isPair)

  1842.                         {

  1843.                             // left

  1844.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1845.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1846.                         }

  1847.                         else

  1848.                         {

  1849.                             // right

  1850.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1851.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1852.                         }

  1853.                     }

  1854.                 }

  1855. 

  1856.                 // Volume (and buffer copy)

  1857.                 {

  1858.                     for (k=0; k < frames; ++k)

  1859.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1860.                 }

  1861.             }

  1862. 

  1863.         } // End of Post-processing

  1864. #else

  1865.         for (i=0; i < pData->audioOut.count; ++i)

  1866.         {

  1867.             for (k=0; k < frames; ++k)

  1868.                 outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1869.         }

  1870. #endif

  1871. 

  1872.         // --------------------------------------------------------------------------------------------------------

  1873. 

  1874.         pData->singleMutex.unlock();

  1875.         return true;

  1876.     }

  1877. 

  1878.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1879.     {

  1880.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1881.         carla_debug("NativePlugin::bufferSizeChanged(%i)", newBufferSize);

  1882. 

  1883.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1884.         {

  1885.             if (fAudioInBuffers[i] != nullptr)

  1886.                 delete[] fAudioInBuffers[i];

  1887.             fAudioInBuffers[i] = new float[newBufferSize];

  1888.         }

  1889. 

  1890.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1891.         {

  1892.             if (fAudioOutBuffers[i] != nullptr)

  1893.                 delete[] fAudioOutBuffers[i];

  1894.             fAudioOutBuffers[i] = new float[newBufferSize];

  1895.         }

  1896. 

  1897.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1898.         {

  1899.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, static_cast<intptr_t>(newBufferSize), nullptr, 0.0f);

  1900. 

  1901.             if (fHandle2 != nullptr)

  1902.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, static_cast<intptr_t>(newBufferSize), nullptr, 0.0f);

  1903.         }

  1904.     }

  1905. 

  1906.     void sampleRateChanged(const double newSampleRate) override

  1907.     {

  1908.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  1909.         carla_debug("NativePlugin::sampleRateChanged(%g)", newSampleRate);

  1910. 

  1911.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1912.         {

  1913.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  1914. 

  1915.             if (fHandle2 != nullptr)

  1916.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  1917.         }

  1918.     }

  1919. 

  1920.     void offlineModeChanged(const bool isOffline) override

  1921.     {

  1922.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1923.         {

  1924.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  1925. 

  1926.             if (fHandle2 != nullptr)

  1927.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  1928.         }

  1929.     }

  1930. 

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

  1932.     // Plugin buffers

  1933. 

  1934.     void initBuffers() const noexcept override

  1935.     {

  1936.         fMidiIn.initBuffers();

  1937.         fMidiOut.initBuffers();

  1938. 

  1939.         CarlaPlugin::initBuffers();

  1940.     }

  1941. 

  1942.     void clearBuffers() noexcept override

  1943.     {

  1944.         carla_debug("NativePlugin::clearBuffers() - start");

  1945. 

  1946.         if (fAudioInBuffers != nullptr)

  1947.         {

  1948.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1949.             {

  1950.                 if (fAudioInBuffers[i] != nullptr)

  1951.                 {

  1952.                     delete[] fAudioInBuffers[i];

  1953.                     fAudioInBuffers[i] = nullptr;

  1954.                 }

  1955.             }

  1956. 

  1957.             delete[] fAudioInBuffers;

  1958.             fAudioInBuffers = nullptr;

  1959.         }

  1960. 

  1961.         if (fAudioOutBuffers != nullptr)

  1962.         {

  1963.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1964.             {

  1965.                 if (fAudioOutBuffers[i] != nullptr)

  1966.                 {

  1967.                     delete[] fAudioOutBuffers[i];

  1968.                     fAudioOutBuffers[i] = nullptr;

  1969.                 }

  1970.             }

  1971. 

  1972.             delete[] fAudioOutBuffers;

  1973.             fAudioOutBuffers = nullptr;

  1974.         }

  1975. 

  1976.         fMidiIn.clear();

  1977.         fMidiOut.clear();

  1978. 

  1979.         CarlaPlugin::clearBuffers();

  1980. 

  1981.         carla_debug("NativePlugin::clearBuffers() - end");

  1982.     }

  1983. 

  1984.     // -------------------------------------------------------------------

  1985.     // Post-poned UI Stuff

  1986. 

  1987.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  1988.     {

  1989.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1990.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1991.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  1992. 

  1993.         if (! fIsUiVisible)

  1994.             return;

  1995. 

  1996.         if (fDescriptor->ui_set_parameter_value != nullptr)

  1997.             fDescriptor->ui_set_parameter_value(fHandle, index, value);

  1998.     }

  1999. 

  2000.     void uiMidiProgramChange(const uint32_t index) noexcept override

  2001.     {

  2002.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2003.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2004.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  2005. 

  2006.         if (! fIsUiVisible)

  2007.             return;

  2008.         if (index >= pData->midiprog.count)

  2009.             return;

  2010. 

  2011.         if (fDescriptor->ui_set_midi_program != nullptr)

  2012.             fDescriptor->ui_set_midi_program(fHandle, 0, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  2013.     }

  2014. 

  2015.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  2016.     {

  2017.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2018.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2019.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  2020.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2021.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  2022. 

  2023.         if (! fIsUiVisible)

  2024.             return;

  2025. 

  2026.         // TODO

  2027.     }

  2028. 

  2029.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  2030.     {

  2031.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2032.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2033.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  2034.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2035. 

  2036.         if (! fIsUiVisible)

  2037.             return;

  2038.         if (fDescriptor == nullptr || fHandle == nullptr)

  2039.             return;

  2040. 

  2041.         // TODO

  2042.     }

  2043. 

  2044.     // -------------------------------------------------------------------

  2045. 

  2046. protected:

  2047.     uint32_t handleGetBufferSize() const noexcept

  2048.     {

  2049.         return pData->engine->getBufferSize();

  2050.     }

  2051. 

  2052.     double handleGetSampleRate() const noexcept

  2053.     {

  2054.         return pData->engine->getSampleRate();

  2055.     }

  2056. 

  2057.     bool handleIsOffline() const noexcept

  2058.     {

  2059.         return pData->engine->isOffline();

  2060.     }

  2061. 

  2062.     const NativeTimeInfo* handleGetTimeInfo() const noexcept

  2063.     {

  2064.         CARLA_SAFE_ASSERT_RETURN(fIsProcessing, nullptr);

  2065. 

  2066.         return &fTimeInfo;

  2067.     }

  2068. 

  2069.     bool handleWriteMidiEvent(const NativeMidiEvent* const event)

  2070.     {

  2071.         CARLA_ASSERT(pData->enabled);

  2072.         CARLA_ASSERT(fIsProcessing);

  2073.         CARLA_ASSERT(fMidiOut.count > 0 || pData->event.portOut != nullptr);

  2074.         CARLA_ASSERT(event != nullptr);

  2075.         CARLA_ASSERT(event->data[0] != 0);

  2076. 

  2077.         if (! pData->enabled)

  2078.             return false;

  2079.         if (fMidiOut.count == 0)

  2080.             return false;

  2081.         if (event == nullptr)

  2082.             return false;

  2083.         if (event->data[0] == 0)

  2084.             return false;

  2085.         if (! fIsProcessing)

  2086.         {

  2087.             carla_stderr2("NativePlugin::handleWriteMidiEvent(%p) - received MIDI out event outside audio thread, ignoring", event);

  2088.             return false;

  2089.         }

  2090. 

  2091.         // reverse-find first free event, and put it there

  2092.         for (uint32_t i=(kPluginMaxMidiEvents*2)-1; i > fMidiEventCount; --i)

  2093.         {

  2094.             if (fMidiEvents[i].data[0] == 0)

  2095.             {

  2096.                 std::memcpy(&fMidiEvents[i], event, sizeof(NativeMidiEvent));

  2097.                 return true;

  2098.             }

  2099.         }

  2100. 

  2101.         return false;

  2102.     }

  2103. 

  2104.     void handleUiParameterChanged(const uint32_t index, const float value)

  2105.     {

  2106.         setParameterValue(index, value, false, true, true);

  2107.     }

  2108. 

  2109.     void handleUiCustomDataChanged(const char* const key, const char* const value)

  2110.     {

  2111.         setCustomData(CUSTOM_DATA_TYPE_STRING, key, value, false);

  2112.     }

  2113. 

  2114.     void handleUiClosed()

  2115.     {

  2116.         pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2117.         fIsUiVisible = false;

  2118.     }

  2119. 

  2120.     const char* handleUiOpenFile(const bool isDir, const char* const title, const char* const filter)

  2121.     {

  2122.         return pData->engine->runFileCallback(FILE_CALLBACK_OPEN, isDir, title, filter);

  2123.     }

  2124. 

  2125.     const char* handleUiSaveFile(const bool isDir, const char* const title, const char* const filter)

  2126.     {

  2127.         return pData->engine->runFileCallback(FILE_CALLBACK_SAVE, isDir, title, filter);

  2128.     }

  2129. 

  2130.     intptr_t handleDispatcher(const NativeHostDispatcherOpcode opcode, const int32_t index, const intptr_t value, void* const ptr, const float opt)

  2131.     {

  2132.         carla_debug("NativePlugin::handleDispatcher(%i, %i, " P_INTPTR ", %p, %f)", opcode, index, value, ptr, opt);

  2133. 

  2134.         intptr_t ret = 0;

  2135. 

  2136.         switch (opcode)

  2137.         {

  2138.         case ::HOST_OPCODE_NULL:

  2139.             break;

  2140.         case ::HOST_OPCODE_UPDATE_PARAMETER:

  2141.             // TODO

  2142.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2143.             break;

  2144.         case ::HOST_OPCODE_UPDATE_MIDI_PROGRAM:

  2145.             // TODO

  2146.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2147.             break;

  2148.         case ::HOST_OPCODE_RELOAD_PARAMETERS:

  2149.             reload(); // FIXME

  2150.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PARAMETERS, pData->id, -1, 0, 0.0f, nullptr);

  2151.             break;

  2152.         case ::HOST_OPCODE_RELOAD_MIDI_PROGRAMS:

  2153.             reloadPrograms(false);

  2154.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, -1, 0, 0.0f, nullptr);

  2155.             break;

  2156.         case ::HOST_OPCODE_RELOAD_ALL:

  2157.             reload();

  2158.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_ALL, pData->id, -1, 0, 0.0f, nullptr);

  2159.             break;

  2160.         case ::HOST_OPCODE_UI_UNAVAILABLE:

  2161.             pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, -1, 0, 0.0f, nullptr);

  2162.             break;

  2163.         }

  2164. 

  2165.         return ret;

  2166. 

  2167.         // unused for now

  2168.         (void)index;

  2169.         (void)value;

  2170.         (void)ptr;

  2171.         (void)opt;

  2172.     }

  2173. 

  2174.     // -------------------------------------------------------------------

  2175. 

  2176. public:

  2177.     static size_t getPluginCount() noexcept

  2178.     {

  2179.         return gPluginDescriptors.count();

  2180.     }

  2181. 

  2182.     static const NativePluginDescriptor* getPluginDescriptor(const size_t index) noexcept

  2183.     {

  2184.         CARLA_SAFE_ASSERT_RETURN(index < gPluginDescriptors.count(), nullptr);

  2185. 

  2186.         return gPluginDescriptors.getAt(index, nullptr);

  2187.     }

  2188. 

  2189.     // -------------------------------------------------------------------

  2190. 

  2191.     void* getNativeHandle() const noexcept override

  2192.     {

  2193.         return fHandle;

  2194.     }

  2195. 

  2196.     const void* getNativeDescriptor() const noexcept override

  2197.     {

  2198.         return fDescriptor;

  2199.     }

  2200. 

  2201.     // -------------------------------------------------------------------

  2202. 

  2203.     bool init(const char* const name, const char* const label)

  2204.     {

  2205.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2206. 

  2207.         // ---------------------------------------------------------------

  2208.         // first checks

  2209. 

  2210.         if (pData->client != nullptr)

  2211.         {

  2212.             pData->engine->setLastError("Plugin client is already registered");

  2213.             return false;

  2214.         }

  2215. 

  2216.         if (label == nullptr && label[0] != '\0')

  2217.         {

  2218.             pData->engine->setLastError("null label");

  2219.             return false;

  2220.         }

  2221. 

  2222.         // ---------------------------------------------------------------

  2223.         // get descriptor that matches label

  2224. 

  2225.         for (LinkedList<const NativePluginDescriptor*>::Itenerator it = gPluginDescriptors.begin(); it.valid(); it.next())

  2226.         {

  2227.             fDescriptor = it.getValue();

  2228. 

  2229.             CARLA_SAFE_ASSERT_BREAK(fDescriptor != nullptr);

  2230. 

  2231.             carla_debug("Check vs \"%s\"", fDescriptor->label);

  2232. 

  2233.             if (fDescriptor->label != nullptr && std::strcmp(fDescriptor->label, label) == 0)

  2234.                 break;

  2235. 

  2236.             fDescriptor = nullptr;

  2237.         }

  2238. 

  2239.         if (fDescriptor == nullptr)

  2240.         {

  2241.             pData->engine->setLastError("Invalid internal plugin");

  2242.             return false;

  2243.         }

  2244. 

  2245.         // ---------------------------------------------------------------

  2246.         // set icon

  2247. 

  2248.         if (std::strcmp(fDescriptor->label, "audiofile") == 0)

  2249.             pData->iconName = carla_strdup_safe("file");

  2250.         else if (std::strcmp(fDescriptor->label, "midifile") == 0)

  2251.             pData->iconName = carla_strdup_safe("file");

  2252. 

  2253.         // ---------------------------------------------------------------

  2254.         // get info

  2255. 

  2256.         if (name != nullptr && name[0] != '\0')

  2257.             pData->name = pData->engine->getUniquePluginName(name);

  2258.         else if (fDescriptor->name != nullptr && fDescriptor->name[0] != '\0')

  2259.             pData->name = pData->engine->getUniquePluginName(fDescriptor->name);

  2260.         else

  2261.             pData->name = pData->engine->getUniquePluginName(label);

  2262. 

  2263.         {

  2264.             CARLA_ASSERT(fHost.uiName == nullptr);

  2265. 

  2266.             char uiName[std::strlen(pData->name)+6+1];

  2267.             std::strcpy(uiName, pData->name);

  2268.             std::strcat(uiName, " (GUI)");

  2269. 

  2270.             fHost.uiName = carla_strdup(uiName);

  2271.         }

  2272. 

  2273.         // ---------------------------------------------------------------

  2274.         // register client

  2275. 

  2276.         pData->client = pData->engine->addClient(this);

  2277. 

  2278.         if (pData->client == nullptr || ! pData->client->isOk())

  2279.         {

  2280.             pData->engine->setLastError("Failed to register plugin client");

  2281.             return false;

  2282.         }

  2283. 

  2284.         // ---------------------------------------------------------------

  2285.         // initialize plugin

  2286. 

  2287.         fHandle = fDescriptor->instantiate(&fHost);

  2288. 

  2289.         if (fHandle == nullptr)

  2290.         {

  2291.             pData->engine->setLastError("Plugin failed to initialize");

  2292.             return false;

  2293.         }

  2294. 

  2295.         // ---------------------------------------------------------------

  2296.         // set default options

  2297. 

  2298.         const bool hasMidiProgs(fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_count(fHandle) > 0);

  2299. 

  2300.         pData->options = 0x0;

  2301. 

  2302.         if (hasMidiProgs && (fDescriptor->supports & ::PLUGIN_SUPPORTS_PROGRAM_CHANGES) == 0)

  2303.             pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  2304. 

  2305.         if (getMidiInCount() > 0 || (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS) != 0)

  2306.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2307. 

  2308.         if (pData->engine->getOptions().forceStereo)

  2309.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2310. 

  2311.         if (fDescriptor->supports & ::PLUGIN_SUPPORTS_CHANNEL_PRESSURE)

  2312.             pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  2313.         if (fDescriptor->supports & ::PLUGIN_SUPPORTS_NOTE_AFTERTOUCH)

  2314.             pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  2315.         if (fDescriptor->supports & ::PLUGIN_SUPPORTS_PITCHBEND)

  2316.             pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  2317.         if (fDescriptor->supports & ::PLUGIN_SUPPORTS_ALL_SOUND_OFF)

  2318.             pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  2319. 

  2320.         return true;

  2321.     }

  2322. 

  2323. 

  2324. private:

  2325.     NativePluginHandle   fHandle;

  2326.     NativePluginHandle   fHandle2;

  2327.     NativeHostDescriptor fHost;

  2328.     const NativePluginDescriptor* fDescriptor;

  2329. 

  2330.     bool fIsProcessing;

  2331.     bool fIsUiVisible;

  2332. 

  2333.     float**         fAudioInBuffers;

  2334.     float**         fAudioOutBuffers;

  2335.     uint32_t        fMidiEventCount;

  2336.     NativeMidiEvent fMidiEvents[kPluginMaxMidiEvents*2];

  2337. 

  2338.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  2339. 

  2340.     NativePluginMidiData fMidiIn;

  2341.     NativePluginMidiData fMidiOut;

  2342. 

  2343.     NativeTimeInfo fTimeInfo;

  2344. 

  2345.     // -------------------------------------------------------------------

  2346. 

  2347.     #define handlePtr ((NativePlugin*)handle)

  2348. 

  2349.     static uint32_t carla_host_get_buffer_size(NativeHostHandle handle) noexcept

  2350.     {

  2351.         return handlePtr->handleGetBufferSize();

  2352.     }

  2353. 

  2354.     static double carla_host_get_sample_rate(NativeHostHandle handle) noexcept

  2355.     {

  2356.         return handlePtr->handleGetSampleRate();

  2357.     }

  2358. 

  2359.     static bool carla_host_is_offline(NativeHostHandle handle) noexcept

  2360.     {

  2361.         return handlePtr->handleIsOffline();

  2362.     }

  2363. 

  2364.     static const NativeTimeInfo* carla_host_get_time_info(NativeHostHandle handle) noexcept

  2365.     {

  2366.         return handlePtr->handleGetTimeInfo();

  2367.     }

  2368. 

  2369.     static bool carla_host_write_midi_event(NativeHostHandle handle, const NativeMidiEvent* event)

  2370.     {

  2371.         return handlePtr->handleWriteMidiEvent(event);

  2372.     }

  2373. 

  2374.     static void carla_host_ui_parameter_changed(NativeHostHandle handle, uint32_t index, float value)

  2375.     {

  2376.         handlePtr->handleUiParameterChanged(index, value);

  2377.     }

  2378. 

  2379.     static void carla_host_ui_custom_data_changed(NativeHostHandle handle, const char* key, const char* value)

  2380.     {

  2381.         handlePtr->handleUiCustomDataChanged(key, value);

  2382.     }

  2383. 

  2384.     static void carla_host_ui_closed(NativeHostHandle handle)

  2385.     {

  2386.         handlePtr->handleUiClosed();

  2387.     }

  2388. 

  2389.     static const char* carla_host_ui_open_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2390.     {

  2391.         return handlePtr->handleUiOpenFile(isDir, title, filter);

  2392.     }

  2393. 

  2394.     static const char* carla_host_ui_save_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2395.     {

  2396.         return handlePtr->handleUiSaveFile(isDir, title, filter);

  2397.     }

  2398. 

  2399.     static intptr_t carla_host_dispatcher(NativeHostHandle handle, NativeHostDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  2400.     {

  2401.         return handlePtr->handleDispatcher(opcode, index, value, ptr, opt);

  2402.     }

  2403. 

  2404.     #undef handlePtr

  2405. 

  2406.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(NativePlugin)

  2407. };

  2408. 

  2409. // -----------------------------------------------------------------------

  2410. 

  2411. size_t CarlaPlugin::getNativePluginCount() noexcept

  2412. {

  2413.     return NativePlugin::getPluginCount();

  2414. }

  2415. 

  2416. const NativePluginDescriptor* CarlaPlugin::getNativePluginDescriptor(const size_t index) noexcept

  2417. {

  2418.     return NativePlugin::getPluginDescriptor(index);

  2419. }

  2420. 

  2421. // -----------------------------------------------------------------------

  2422. 

  2423. CarlaPlugin* CarlaPlugin::newNative(const Initializer& init)

  2424. {

  2425.     carla_debug("CarlaPlugin::newNative({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "})", init.engine, init.filename, init.name, init.label, init.uniqueId);

  2426. 

  2427.     NativePlugin* const plugin(new NativePlugin(init.engine, init.id));

  2428. 

  2429.     if (! plugin->init(init.name, init.label))

  2430.     {

  2431.         delete plugin;

  2432.         return nullptr;

  2433.     }

  2434. 

  2435.     plugin->reload();

  2436. 

  2437.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && ! plugin->canRunInRack())

  2438.     {

  2439.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo Internal plugins, sorry!");

  2440.         delete plugin;

  2441.         return nullptr;

  2442.     }

  2443. 

  2444.     return plugin;

  2445. }

  2446. 

  2447. // -----------------------------------------------------------------------

  2448. 

  2449. CARLA_BACKEND_END_NAMESPACE