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Carla
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Carla/source/backend/plugin/CarlaPluginNative.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. CARLA_EXTERN_C

  30. std::size_t carla_getNativePluginCount() noexcept;

  31. 

  32. CARLA_EXTERN_C

  33. const NativePluginDescriptor* carla_getNativePluginDescriptor(const std::size_t index) noexcept;

  34. 

  35. // -----------------------------------------------------------------------

  36. 

  37. static LinkedList<const NativePluginDescriptor*> gPluginDescriptors;

  38. 

  39. void carla_register_native_plugin(const NativePluginDescriptor* desc)

  40. {

  41.     gPluginDescriptors.append(desc);

  42. }

  43. 

  44. // -----------------------------------------------------------------------

  45. 

  46. static

  47. class NativePluginInitializer

  48. {

  49. public:

  50.     NativePluginInitializer() noexcept

  51.         : fNeedsInit(true) {}

  52. 

  53.     ~NativePluginInitializer() noexcept

  54.     {

  55.         gPluginDescriptors.clear();

  56.     }

  57. 

  58.     void initIfNeeded() noexcept

  59.     {

  60.         if (! fNeedsInit)

  61.             return;

  62. 

  63.         fNeedsInit = false;

  64. 

  65.         try {

  66.             carla_register_all_native_plugins();

  67.         } CARLA_SAFE_EXCEPTION("carla_register_all_native_plugins")

  68.     }

  69. 

  70. private:

  71.     bool fNeedsInit;

  72. 

  73. } sPluginInitializer;

  74. 

  75. // -----------------------------------------------------------------------

  76. 

  77. std::size_t carla_getNativePluginCount() noexcept

  78. {

  79.     sPluginInitializer.initIfNeeded();

  80.     return gPluginDescriptors.count();

  81. }

  82. 

  83. const NativePluginDescriptor* carla_getNativePluginDescriptor(const std::size_t index) noexcept

  84. {

  85.     sPluginInitializer.initIfNeeded();

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

  87. }

  88. 

  89. // -----------------------------------------------------------------------

  90. 

  91. CARLA_BACKEND_START_NAMESPACE

  92. 

  93. // -----------------------------------------------------------------------

  94. 

  95. struct NativePluginMidiData {

  96.     uint32_t  count;

  97.     uint32_t* indexes;

  98.     CarlaEngineEventPort** ports;

  99. 

  100.     NativePluginMidiData() noexcept

  101.         : count(0),

  102.           indexes(nullptr),

  103.           ports(nullptr) {}

  104. 

  105.     ~NativePluginMidiData() noexcept

  106.     {

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

  108.         CARLA_SAFE_ASSERT(indexes == nullptr);

  109.         CARLA_SAFE_ASSERT(ports == nullptr);

  110.     }

  111. 

  112.     void createNew(const uint32_t newCount)

  113.     {

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

  115.         CARLA_SAFE_ASSERT_RETURN(indexes == nullptr,);

  116.         CARLA_SAFE_ASSERT_RETURN(ports == nullptr,);

  117.         CARLA_SAFE_ASSERT_RETURN(newCount > 0,);

  118. 

  119.         indexes = new uint32_t[newCount];

  120.         ports   = new CarlaEngineEventPort*[newCount];

  121.         count   = newCount;

  122. 

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

  124.             indexes[i] = 0;

  125. 

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

  127.             ports[i] = nullptr;

  128.     }

  129. 

  130.     void clear() noexcept

  131.     {

  132.         if (ports != nullptr)

  133.         {

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

  135.             {

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

  137.                 {

  138.                     delete ports[i];

  139.                     ports[i] = nullptr;

  140.                 }

  141.             }

  142. 

  143.             delete[] ports;

  144.             ports = nullptr;

  145.         }

  146. 

  147.         if (indexes != nullptr)

  148.         {

  149.             delete[] indexes;

  150.             indexes = nullptr;

  151.         }

  152. 

  153.         count = 0;

  154.     }

  155. 

  156.     void initBuffers() const noexcept

  157.     {

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

  159.         {

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

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

  162.         }

  163.     }

  164. 

  165.     CARLA_DECLARE_NON_COPY_STRUCT(NativePluginMidiData)

  166. };

  167. 

  168. // -----------------------------------------------------

  169. 

  170. class CarlaPluginNative : public CarlaPlugin

  171. {

  172. public:

  173.     CarlaPluginNative(CarlaEngine* const engine, const uint id)

  174.         : CarlaPlugin(engine, id),

  175.           fHandle(nullptr),

  176.           fHandle2(nullptr),

  177.           fHost(),

  178.           fDescriptor(nullptr),

  179.           fIsProcessing(false),

  180.           fIsUiVisible(false),

  181.           fAudioInBuffers(nullptr),

  182.           fAudioOutBuffers(nullptr),

  183.           fMidiEventCount(0),

  184.           fMidiIn(),

  185.           fMidiOut(),

  186.           fTimeInfo(),

  187.           leakDetector_CarlaPluginNative()

  188.     {

  189.         carla_debug("CarlaPluginNative::CarlaPluginNative(%p, %i)", engine, id);

  190. 

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

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

  193.         carla_zeroStruct<NativeTimeInfo>(fTimeInfo);

  194. 

  195.         fHost.handle      = this;

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

  197.         fHost.uiName      = nullptr;

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

  199. 

  200.         fHost.get_buffer_size        = carla_host_get_buffer_size;

  201.         fHost.get_sample_rate        = carla_host_get_sample_rate;

  202.         fHost.is_offline             = carla_host_is_offline;

  203.         fHost.get_time_info          = carla_host_get_time_info;

  204.         fHost.write_midi_event       = carla_host_write_midi_event;

  205.         fHost.ui_parameter_changed   = carla_host_ui_parameter_changed;

  206.         fHost.ui_custom_data_changed = carla_host_ui_custom_data_changed;

  207.         fHost.ui_closed              = carla_host_ui_closed;

  208.         fHost.ui_open_file           = carla_host_ui_open_file;

  209.         fHost.ui_save_file           = carla_host_ui_save_file;

  210.         fHost.dispatcher             = carla_host_dispatcher;

  211.     }

  212. 

  213.     ~CarlaPluginNative() override

  214.     {

  215.         carla_debug("CarlaPluginNative::~CarlaPluginNative()");

  216. 

  217.         // close UI

  218.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  219.         {

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

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

  222. 

  223.             pData->transientTryCounter = 0;

  224.         }

  225. 

  226.         pData->singleMutex.lock();

  227.         pData->masterMutex.lock();

  228. 

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

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

  231. 

  232.         CARLA_ASSERT(! fIsProcessing);

  233. 

  234.         if (pData->active)

  235.         {

  236.             deactivate();

  237.             pData->active = false;

  238.         }

  239. 

  240.         if (fDescriptor != nullptr)

  241.         {

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

  243.             {

  244.                 if (fHandle != nullptr)

  245.                     fDescriptor->cleanup(fHandle);

  246.                 if (fHandle2 != nullptr)

  247.                     fDescriptor->cleanup(fHandle2);

  248.             }

  249. 

  250.             fHandle  = nullptr;

  251.             fHandle2 = nullptr;

  252.             fDescriptor = nullptr;

  253.         }

  254. 

  255.         if (fHost.resourceDir != nullptr)

  256.         {

  257.             delete[] fHost.resourceDir;

  258.             fHost.resourceDir = nullptr;

  259.         }

  260. 

  261.         if (fHost.uiName != nullptr)

  262.         {

  263.             delete[] fHost.uiName;

  264.             fHost.uiName = nullptr;

  265.         }

  266. 

  267.         clearBuffers();

  268.     }

  269. 

  270.     // -------------------------------------------------------------------

  271.     // Information (base)

  272. 

  273.     PluginType getType() const noexcept override

  274.     {

  275.         return PLUGIN_INTERNAL;

  276.     }

  277. 

  278.     PluginCategory getCategory() const noexcept override

  279.     {

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

  281. 

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

  283.     }

  284. 

  285.     // -------------------------------------------------------------------

  286.     // Information (count)

  287. 

  288.     uint32_t getMidiInCount() const noexcept override

  289.     {

  290.         return fMidiIn.count;

  291.     }

  292. 

  293.     uint32_t getMidiOutCount() const noexcept override

  294.     {

  295.         return fMidiOut.count;

  296.     }

  297. 

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

  299.     {

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

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

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

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

  304. 

  305.         // FIXME - try

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

  307.             return param->scalePointCount;

  308. 

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

  310.         return 0;

  311.     }

  312. 

  313.     // -------------------------------------------------------------------

  314.     // Information (current data)

  315. 

  316.     // nothing

  317. 

  318.     // -------------------------------------------------------------------

  319.     // Information (per-plugin data)

  320. 

  321.     uint getOptionsAvailable() const noexcept override

  322.     {

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

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

  325. 

  326.         // FIXME - try

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

  328. 

  329.         uint options = 0x0;

  330. 

  331.         if (getMidiInCount() == 0 && (fDescriptor->hints & NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS) == 0)

  332.             options |= PLUGIN_OPTION_FIXED_BUFFERS;

  333. 

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

  335.         {

  336.             if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  337.                 options |= PLUGIN_OPTION_FORCE_STEREO;

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

  339.                 options |= PLUGIN_OPTION_FORCE_STEREO;

  340.         }

  341. 

  342.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_CONTROL_CHANGES)

  343.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  344.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_CHANNEL_PRESSURE)

  345.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  346.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_NOTE_AFTERTOUCH)

  347.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  348.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_PITCHBEND)

  349.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

  350.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_ALL_SOUND_OFF)

  351.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  352. 

  353.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_PROGRAM_CHANGES)

  354.             options |= PLUGIN_OPTION_SEND_PROGRAM_CHANGES;

  355.         else if (hasMidiProgs)

  356.             options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  357. 

  358.         return options;

  359.     }

  360. 

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

  362.     {

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

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

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

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

  367. 

  368.         // FIXME - try

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

  370.     }

  371. 

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

  373.     {

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

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

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

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

  378. 

  379.         // FIXME - try

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

  381.         {

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

  383. 

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

  385.             return scalePoint->value;

  386.         }

  387. 

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

  389.         return 0.0f;

  390.     }

  391. 

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

  393.     {

  394.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  395. 

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

  397.         {

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

  399.             return;

  400.         }

  401. 

  402.         CarlaPlugin::getLabel(strBuf);

  403.     }

  404. 

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

  406.     {

  407.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  408. 

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

  410.         {

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

  412.             return;

  413.         }

  414. 

  415.         CarlaPlugin::getMaker(strBuf);

  416.     }

  417. 

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

  419.     {

  420.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  421. 

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

  423.         {

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

  425.             return;

  426.         }

  427. 

  428.         CarlaPlugin::getCopyright(strBuf);

  429.     }

  430. 

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

  432.     {

  433.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  434. 

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

  436.         {

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

  438.             return;

  439.         }

  440. 

  441.         CarlaPlugin::getRealName(strBuf);

  442.     }

  443. 

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

  445.     {

  446.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  448.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  450. 

  451.         // FIXME - try

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

  453.         {

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

  455.             {

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

  457.                 return;

  458.             }

  459. 

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

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

  462.         }

  463. 

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

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

  466.     }

  467. 

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

  469.     {

  470.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

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

  473.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  475. 

  476.         // FIXME - try

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

  478.         {

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

  480.             return;

  481.         }

  482. 

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

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

  485.     }

  486. 

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

  488.     {

  489.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  491.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  493. 

  494.         // FIXME - try

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

  496.         {

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

  498.             {

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

  500.                 return;

  501.             }

  502. 

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

  504.         }

  505. 

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

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

  508.     }

  509. 

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

  511.     {

  512.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  514.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  516. 

  517.         // FIXME - try

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

  519.         {

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

  521. 

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

  523. 

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

  525.             {

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

  527.                 return;

  528.             }

  529. 

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

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

  532.         }

  533. 

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

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

  536.     }

  537. 

  538.     // -------------------------------------------------------------------

  539.     // Set data (state)

  540. 

  541.     void prepareForSave() override

  542.     {

  543.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  544.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  545. 

  546.         if (pData->midiprog.count > 0 && fDescriptor->category == NATIVE_PLUGIN_CATEGORY_SYNTH)

  547.         {

  548.             char strBuf[STR_MAX+1];

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

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

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

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

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

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

  555. 

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

  557.         }

  558. 

  559.         if (fDescriptor == nullptr || fDescriptor->get_state == nullptr || (fDescriptor->hints & NATIVE_PLUGIN_USES_STATE) == 0)

  560.             return;

  561. 

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

  563.         {

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

  565.             std::free(data);

  566.         }

  567.     }

  568. 

  569.     // -------------------------------------------------------------------

  570.     // Set data (internal stuff)

  571. 

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

  573.     {

  574.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  575.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  577. 

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

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

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

  581. 

  582.         if (fHost.uiName != nullptr)

  583.             delete[] fHost.uiName;

  584.         fHost.uiName = carla_strdup(uiName);

  585. 

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

  587.             fDescriptor->dispatcher(fHandle, NATIVE_PLUGIN_OPCODE_UI_NAME_CHANGED, 0, 0, uiName, 0.0f);

  588. 

  589.         CarlaPlugin::setName(newName);

  590.     }

  591. 

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

  593.     {

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

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

  596. 

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

  598.     }

  599. 

  600.     // -------------------------------------------------------------------

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

  602. 

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

  604.     {

  605.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  607.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  609. 

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

  611. 

  612.         // FIXME - try

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

  614. 

  615.         if (fHandle2 != nullptr)

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

  617. 

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

  619.     }

  620. 

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

  622.     {

  623.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  624.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

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

  627.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

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

  629. 

  630.         if (std::strcmp(type, CUSTOM_DATA_TYPE_PROPERTY) == 0)

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

  632. 

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

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

  635. 

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

  637.         {

  638.             if (fDescriptor->set_state != nullptr && (fDescriptor->hints & NATIVE_PLUGIN_USES_STATE) != 0)

  639.             {

  640.                 const ScopedSingleProcessLocker spl(this, true);

  641. 

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

  643. 

  644.                 if (fHandle2 != nullptr)

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

  646.             }

  647.         }

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

  649.         {

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

  651. 

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

  653.             {

  654.                 uint8_t channel = 0;

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

  656.                 {

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

  658. 

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

  660.                     {

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

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

  663. 

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

  665. 

  666.                         if (fHandle2 != nullptr)

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

  668. 

  669.                         fCurMidiProgs[channel] = index;

  670. 

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

  672.                         {

  673.                             pData->midiprog.current = index;

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

  675.                         }

  676.                     }

  677. 

  678.                     ++channel;

  679.                 }

  680.                 CARLA_SAFE_ASSERT(channel == MAX_MIDI_CHANNELS);

  681.             }

  682.         }

  683.         else

  684.         {

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

  686.             {

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

  688. 

  689.                 if (fHandle2 != nullptr)

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

  691.             }

  692. 

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

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

  695.         }

  696. 

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

  698.     }

  699. 

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

  701.     {

  702.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  703.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  705. 

  706.         // TODO, put into check below

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

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

  709. 

  710.         if (index >= 0)

  711.         {

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

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

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

  715. 

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

  717. 

  718.             try {

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

  720.             } catch(...) {}

  721. 

  722.             if (fHandle2 != nullptr)

  723.             {

  724.                 try {

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

  726.                 } catch(...) {}

  727.             }

  728. 

  729.             fCurMidiProgs[channel] = index;

  730.         }

  731. 

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

  733.     }

  734. 

  735.     // -------------------------------------------------------------------

  736.     // Set ui stuff

  737. 

  738.     void showCustomUI(const bool yesNo) override

  739.     {

  740.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  741.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  742. 

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

  744.             return;

  745. 

  746.         const bool oldIsUiVisible(fIsUiVisible);

  747. 

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

  749. 

  750.         // UI might not be available, see NATIVE_HOST_OPCODE_UI_UNAVAILABLE

  751.         if (fIsUiVisible == yesNo || fIsUiVisible != oldIsUiVisible)

  752.             return;

  753. 

  754.         fIsUiVisible = yesNo;

  755. 

  756.         if (! yesNo)

  757.         {

  758.             pData->transientTryCounter = 0;

  759.             return;

  760.         }

  761. 

  762. #ifndef BUILD_BRIDGE

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

  764.             pData->tryTransient();

  765. #endif

  766. 

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

  768.         {

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

  770.             {

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

  772. 

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

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

  775.             }

  776.         }

  777. 

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

  779.         {

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

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

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

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

  784. 

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

  786.         }

  787. 

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

  789.         {

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

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

  792.         }

  793.     }

  794. 

  795.     void uiIdle() override

  796.     {

  797.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  798.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  799. 

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

  801.             fDescriptor->ui_idle(fHandle);

  802. 

  803.         CarlaPlugin::uiIdle();

  804.     }

  805. 

  806.     // -------------------------------------------------------------------

  807.     // Plugin state

  808. 

  809.     void reload() override

  810.     {

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

  812.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  813.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  814.         carla_debug("CarlaPluginNative::reload() - start");

  815. 

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

  817. 

  818.         // Safely disable plugin for reload

  819.         const ScopedDisabler sd(this);

  820. 

  821.         if (pData->active)

  822.             deactivate();

  823. 

  824.         clearBuffers();

  825. 

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

  827. 

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

  829. 

  830.         bool forcedStereoIn, forcedStereoOut;

  831.         forcedStereoIn = forcedStereoOut = false;

  832. 

  833.         bool needsCtrlIn, needsCtrlOut;

  834.         needsCtrlIn = needsCtrlOut = false;

  835. 

  836.         aIns   = fDescriptor->audioIns;

  837.         aOuts  = fDescriptor->audioOuts;

  838.         mIns   = fDescriptor->midiIns;

  839.         mOuts  = fDescriptor->midiOuts;

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

  841. 

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

  843.         {

  844.             if (fHandle2 == nullptr)

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

  846. 

  847.             if (fHandle2 != nullptr)

  848.             {

  849.                 if (aIns == 1)

  850.                 {

  851.                     aIns = 2;

  852.                     forcedStereoIn = true;

  853.                 }

  854. 

  855.                 if (aOuts == 1)

  856.                 {

  857.                     aOuts = 2;

  858.                     forcedStereoOut = true;

  859.                 }

  860.             }

  861.         }

  862. 

  863.         if (aIns > 0)

  864.         {

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

  866.             fAudioInBuffers = new float*[aIns];

  867. 

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

  869.                 fAudioInBuffers[i] = nullptr;

  870.         }

  871. 

  872.         if (aOuts > 0)

  873.         {

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

  875.             fAudioOutBuffers = new float*[aOuts];

  876.             needsCtrlIn = true;

  877. 

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

  879.                 fAudioOutBuffers[i] = nullptr;

  880.         }

  881. 

  882.         if (mIns > 0)

  883.         {

  884.             fMidiIn.createNew(mIns);

  885.             needsCtrlIn = (mIns == 1);

  886.         }

  887. 

  888.         if (mOuts > 0)

  889.         {

  890.             fMidiOut.createNew(mOuts);

  891.             needsCtrlOut = (mOuts == 1);

  892.         }

  893. 

  894.         if (params > 0)

  895.         {

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

  897.         }

  898. 

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

  900.         CarlaString portName;

  901. 

  902.         // Audio Ins

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

  904.         {

  905.             portName.clear();

  906. 

  907.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  908.             {

  909.                 portName  = pData->name;

  910.                 portName += ":";

  911.             }

  912. 

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

  914.             {

  915.                 portName += "input_";

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

  917.             }

  918.             else

  919.                 portName += "input";

  920. 

  921.             portName.truncate(portNameSize);

  922. 

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

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

  925. 

  926.             if (forcedStereoIn)

  927.             {

  928.                 portName += "_2";

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

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

  931.                 break;

  932.             }

  933.         }

  934. 

  935.         // Audio Outs

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

  937.         {

  938.             portName.clear();

  939. 

  940.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  941.             {

  942.                 portName  = pData->name;

  943.                 portName += ":";

  944.             }

  945. 

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

  947.             {

  948.                 portName += "output_";

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

  950.             }

  951.             else

  952.                 portName += "output";

  953. 

  954.             portName.truncate(portNameSize);

  955. 

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

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

  958. 

  959.             if (forcedStereoOut)

  960.             {

  961.                 portName += "_2";

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

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

  964.                 break;

  965.             }

  966.         }

  967. 

  968.         // MIDI Input (only if multiple)

  969.         if (mIns > 1)

  970.         {

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

  972.             {

  973.                 portName.clear();

  974. 

  975.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  976.                 {

  977.                     portName  = pData->name;

  978.                     portName += ":";

  979.                 }

  980. 

  981.                 portName += "midi-in_";

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

  983.                 portName.truncate(portNameSize);

  984. 

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

  986.                 fMidiIn.indexes[j] = j;

  987.             }

  988.         }

  989. 

  990.         // MIDI Output (only if multiple)

  991.         if (mOuts > 1)

  992.         {

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

  994.             {

  995.                 portName.clear();

  996. 

  997.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  998.                 {

  999.                     portName  = pData->name;

  1000.                     portName += ":";

  1001.                 }

  1002. 

  1003.                 portName += "midi-out_";

  1004.                 portName += CarlaString(j+1);

  1005.                 portName.truncate(portNameSize);

  1006. 

  1007.                 fMidiOut.ports[j]   = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  1008.                 fMidiOut.indexes[j] = j;

  1009.             }

  1010.         }

  1011. 

  1012.         for (j=0; j < params; ++j)

  1013.         {

  1014.             const NativeParameter* const paramInfo(fDescriptor->get_parameter_info(fHandle, j));

  1015. 

  1016.             CARLA_SAFE_ASSERT_CONTINUE(paramInfo != nullptr);

  1017. 

  1018.             pData->param.data[j].type   = PARAMETER_UNKNOWN;

  1019.             pData->param.data[j].index  = static_cast<int32_t>(j);

  1020.             pData->param.data[j].rindex = static_cast<int32_t>(j);

  1021. 

  1022.             float min, max, def, step, stepSmall, stepLarge;

  1023. 

  1024.             // min value

  1025.             min = paramInfo->ranges.min;

  1026. 

  1027.             // max value

  1028.             max = paramInfo->ranges.max;

  1029. 

  1030.             if (min > max)

  1031.                 max = min;

  1032.             else if (max < min)

  1033.                 min = max;

  1034. 

  1035.             if (carla_compareFloats(min, max))

  1036.             {

  1037.                 carla_stderr2("WARNING - Broken plugin parameter '%s': max == min", paramInfo->name);

  1038.                 max = min + 0.1f;

  1039.             }

  1040. 

  1041.             // default value

  1042.             def = paramInfo->ranges.def;

  1043. 

  1044.             if (def < min)

  1045.                 def = min;

  1046.             else if (def > max)

  1047.                 def = max;

  1048. 

  1049.             if (paramInfo->hints & NATIVE_PARAMETER_USES_SAMPLE_RATE)

  1050.             {

  1051.                 min *= sampleRate;

  1052.                 max *= sampleRate;

  1053.                 def *= sampleRate;

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

  1055.             }

  1056. 

  1057.             if (paramInfo->hints & NATIVE_PARAMETER_IS_BOOLEAN)

  1058.             {

  1059.                 step = max - min;

  1060.                 stepSmall = step;

  1061.                 stepLarge = step;

  1062.                 pData->param.data[j].hints |= PARAMETER_IS_BOOLEAN;

  1063.             }

  1064.             else if (paramInfo->hints & NATIVE_PARAMETER_IS_INTEGER)

  1065.             {

  1066.                 step = 1.0f;

  1067.                 stepSmall = 1.0f;

  1068.                 stepLarge = 10.0f;

  1069.                 pData->param.data[j].hints |= PARAMETER_IS_INTEGER;

  1070.             }

  1071.             else

  1072.             {

  1073.                 float range = max - min;

  1074.                 step = range/100.0f;

  1075.                 stepSmall = range/1000.0f;

  1076.                 stepLarge = range/10.0f;

  1077.             }

  1078. 

  1079.             if (paramInfo->hints & NATIVE_PARAMETER_IS_OUTPUT)

  1080.             {

  1081.                 pData->param.data[j].type = PARAMETER_OUTPUT;

  1082.                 needsCtrlOut = true;

  1083.             }

  1084.             else

  1085.             {

  1086.                 pData->param.data[j].type = PARAMETER_INPUT;

  1087.                 needsCtrlIn = true;

  1088.             }

  1089. 

  1090.             // extra parameter hints

  1091.             if (paramInfo->hints & NATIVE_PARAMETER_IS_ENABLED)

  1092.                 pData->param.data[j].hints |= PARAMETER_IS_ENABLED;

  1093. 

  1094.             if (paramInfo->hints & NATIVE_PARAMETER_IS_AUTOMABLE)

  1095.                 pData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE;

  1096. 

  1097.             if (paramInfo->hints & NATIVE_PARAMETER_IS_LOGARITHMIC)

  1098.                 pData->param.data[j].hints |= PARAMETER_IS_LOGARITHMIC;

  1099. 

  1100.             if (paramInfo->hints & NATIVE_PARAMETER_USES_SCALEPOINTS)

  1101.                 pData->param.data[j].hints |= PARAMETER_USES_SCALEPOINTS;

  1102. 

  1103.             if (paramInfo->hints & NATIVE_PARAMETER_USES_CUSTOM_TEXT)

  1104.                 pData->param.data[j].hints |= PARAMETER_USES_CUSTOM_TEXT;

  1105. 

  1106.             pData->param.ranges[j].min = min;

  1107.             pData->param.ranges[j].max = max;

  1108.             pData->param.ranges[j].def = def;

  1109.             pData->param.ranges[j].step = step;

  1110.             pData->param.ranges[j].stepSmall = stepSmall;

  1111.             pData->param.ranges[j].stepLarge = stepLarge;

  1112.         }

  1113. 

  1114.         if (needsCtrlIn)

  1115.         {

  1116.             portName.clear();

  1117. 

  1118.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1119.             {

  1120.                 portName  = pData->name;

  1121.                 portName += ":";

  1122.             }

  1123. 

  1124.             portName += "events-in";

  1125.             portName.truncate(portNameSize);

  1126. 

  1127.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  1128.         }

  1129. 

  1130.         if (needsCtrlOut)

  1131.         {

  1132.             portName.clear();

  1133. 

  1134.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1135.             {

  1136.                 portName  = pData->name;

  1137.                 portName += ":";

  1138.             }

  1139. 

  1140.             portName += "events-out";

  1141.             portName.truncate(portNameSize);

  1142. 

  1143.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  1144.         }

  1145. 

  1146.         if (forcedStereoIn || forcedStereoOut)

  1147.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1148.         else

  1149.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  1150. 

  1151.         // plugin hints

  1152.         pData->hints = 0x0;

  1153. 

  1154.         if (aOuts > 0 && (aIns == aOuts || aIns == 1))

  1155.             pData->hints |= PLUGIN_CAN_DRYWET;

  1156. 

  1157.         if (aOuts > 0)

  1158.             pData->hints |= PLUGIN_CAN_VOLUME;

  1159. 

  1160.         if (aOuts >= 2 && aOuts % 2 == 0)

  1161.             pData->hints |= PLUGIN_CAN_BALANCE;

  1162. 

  1163.         // native plugin hints

  1164.         if (fDescriptor->hints & NATIVE_PLUGIN_IS_RTSAFE)

  1165.             pData->hints |= PLUGIN_IS_RTSAFE;

  1166.         if (fDescriptor->hints & NATIVE_PLUGIN_IS_SYNTH)

  1167.             pData->hints |= PLUGIN_IS_SYNTH;

  1168.         if (fDescriptor->hints & NATIVE_PLUGIN_HAS_UI)

  1169.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  1170.         if (fDescriptor->hints & NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS)

  1171.             pData->hints |= PLUGIN_NEEDS_FIXED_BUFFERS;

  1172.         if (fDescriptor->hints & NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD)

  1173.             pData->hints |= PLUGIN_NEEDS_UI_MAIN_THREAD;

  1174.         if (fDescriptor->hints & NATIVE_PLUGIN_USES_MULTI_PROGS)

  1175.             pData->hints |= PLUGIN_USES_MULTI_PROGS;

  1176. 

  1177.         // extra plugin hints

  1178.         pData->extraHints = 0x0;

  1179. 

  1180.         if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0) && mIns <= 1 && mOuts <= 1)

  1181.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1182. 

  1183.         bufferSizeChanged(pData->engine->getBufferSize());

  1184.         reloadPrograms(true);

  1185. 

  1186.         if (pData->active)

  1187.             activate();

  1188. 

  1189.         carla_debug("CarlaPluginNative::reload() - end");

  1190.     }

  1191. 

  1192.     void reloadPrograms(const bool doInit) override

  1193.     {

  1194.         carla_debug("CarlaPluginNative::reloadPrograms(%s)", bool2str(doInit));

  1195.         uint32_t i, oldCount  = pData->midiprog.count;

  1196.         const int32_t current = pData->midiprog.current;

  1197. 

  1198.         // Delete old programs

  1199.         pData->midiprog.clear();

  1200. 

  1201.         // Query new programs

  1202.         uint32_t count = 0;

  1203.         if (fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_info != nullptr && fDescriptor->set_midi_program != nullptr)

  1204.             count = fDescriptor->get_midi_program_count(fHandle);

  1205. 

  1206.         if (count > 0)

  1207.         {

  1208.             pData->midiprog.createNew(count);

  1209. 

  1210.             // Update data

  1211.             for (i=0; i < count; ++i)

  1212.             {

  1213.                 const NativeMidiProgram* const mpDesc(fDescriptor->get_midi_program_info(fHandle, i));

  1214.                 CARLA_SAFE_ASSERT_CONTINUE(mpDesc != nullptr);

  1215. 

  1216.                 pData->midiprog.data[i].bank    = mpDesc->bank;

  1217.                 pData->midiprog.data[i].program = mpDesc->program;

  1218.                 pData->midiprog.data[i].name    = carla_strdup(mpDesc->name);

  1219.             }

  1220.         }

  1221. 

  1222. #if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)

  1223.         // Update OSC Names

  1224.         if (pData->engine->isOscControlRegistered())

  1225.         {

  1226.             pData->engine->oscSend_control_set_midi_program_count(pData->id, count);

  1227. 

  1228.             for (i=0; i < count; ++i)

  1229.                 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);

  1230.         }

  1231. #endif

  1232. 

  1233.         if (doInit)

  1234.         {

  1235.             if (count > 0)

  1236.                 setMidiProgram(0, false, false, false);

  1237.         }

  1238.         else

  1239.         {

  1240.             // Check if current program is invalid

  1241.             bool programChanged = false;

  1242. 

  1243.             if (count == oldCount+1)

  1244.             {

  1245.                 // one midi program added, probably created by user

  1246.                 pData->midiprog.current = static_cast<int32_t>(oldCount);

  1247.                 programChanged = true;

  1248.             }

  1249.             else if (current < 0 && count > 0)

  1250.             {

  1251.                 // programs exist now, but not before

  1252.                 pData->midiprog.current = 0;

  1253.                 programChanged = true;

  1254.             }

  1255.             else if (current >= 0 && count == 0)

  1256.             {

  1257.                 // programs existed before, but not anymore

  1258.                 pData->midiprog.current = -1;

  1259.                 programChanged = true;

  1260.             }

  1261.             else if (current >= static_cast<int32_t>(count))

  1262.             {

  1263.                 // current midi program > count

  1264.                 pData->midiprog.current = 0;

  1265.                 programChanged = true;

  1266.             }

  1267.             else

  1268.             {

  1269.                 // no change

  1270.                 pData->midiprog.current = current;

  1271.             }

  1272. 

  1273.             if (programChanged)

  1274.                 setMidiProgram(pData->midiprog.current, true, true, true);

  1275. 

  1276.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1277.         }

  1278.     }

  1279. 

  1280.     // -------------------------------------------------------------------

  1281.     // Plugin processing

  1282. 

  1283.     void activate() noexcept override

  1284.     {

  1285.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1286.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1287. 

  1288.         if (fDescriptor->activate != nullptr)

  1289.         {

  1290.             try {

  1291.                 fDescriptor->activate(fHandle);

  1292.             } catch(...) {}

  1293. 

  1294.             if (fHandle2 != nullptr)

  1295.             {

  1296.                 try {

  1297.                     fDescriptor->activate(fHandle2);

  1298.                 } catch(...) {}

  1299.             }

  1300.         }

  1301.     }

  1302. 

  1303.     void deactivate() noexcept override

  1304.     {

  1305.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1306.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1307. 

  1308.         if (fDescriptor->deactivate != nullptr)

  1309.         {

  1310.             try {

  1311.                 fDescriptor->deactivate(fHandle);

  1312.             } catch(...) {}

  1313. 

  1314.             if (fHandle2 != nullptr)

  1315.             {

  1316.                 try {

  1317.                     fDescriptor->deactivate(fHandle2);

  1318.                 } catch(...) {}

  1319.             }

  1320.         }

  1321.     }

  1322. 

  1323.     void process(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames) override

  1324.     {

  1325.         // --------------------------------------------------------------------------------------------------------

  1326.         // Check if active

  1327. 

  1328.         if (! pData->active)

  1329.         {

  1330.             // disable any output sound

  1331.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1332.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1333.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1334.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1335.             return;

  1336.         }

  1337. 

  1338.         fMidiEventCount = 0;

  1339.         carla_zeroStruct<NativeMidiEvent>(fMidiEvents, kPluginMaxMidiEvents*2);

  1340. 

  1341.         // --------------------------------------------------------------------------------------------------------

  1342.         // Check if needs reset

  1343. 

  1344.         if (pData->needsReset)

  1345.         {

  1346.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1347.             {

  1348.                 fMidiEventCount = MAX_MIDI_CHANNELS*2;

  1349. 

  1350.                 for (uint8_t k=0, i=MAX_MIDI_CHANNELS; k < MAX_MIDI_CHANNELS; ++k)

  1351.                 {

  1352.                     fMidiEvents[k].data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (k & MIDI_CHANNEL_BIT));

  1353.                     fMidiEvents[k].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1354.                     fMidiEvents[k].data[2] = 0;

  1355.                     fMidiEvents[k].size    = 3;

  1356. 

  1357.                     fMidiEvents[k+i].data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (k & MIDI_CHANNEL_BIT));

  1358.                     fMidiEvents[k+i].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1359.                     fMidiEvents[k+i].data[2] = 0;

  1360.                     fMidiEvents[k+i].size    = 3;

  1361.                 }

  1362.             }

  1363.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1364.             {

  1365.                 fMidiEventCount = MAX_MIDI_NOTE;

  1366. 

  1367.                 for (uint8_t k=0; k < MAX_MIDI_NOTE; ++k)

  1368.                 {

  1369.                     fMidiEvents[k].data[0] = uint8_t(MIDI_STATUS_NOTE_OFF | (pData->ctrlChannel & MIDI_CHANNEL_BIT));

  1370.                     fMidiEvents[k].data[1] = k;

  1371.                     fMidiEvents[k].data[2] = 0;

  1372.                     fMidiEvents[k].size    = 3;

  1373.                 }

  1374.             }

  1375. 

  1376.             pData->needsReset = false;

  1377.         }

  1378. 

  1379.         // --------------------------------------------------------------------------------------------------------

  1380.         // Set TimeInfo

  1381. 

  1382.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1383. 

  1384.         fTimeInfo.playing = timeInfo.playing;

  1385.         fTimeInfo.frame   = timeInfo.frame;

  1386.         fTimeInfo.usecs   = timeInfo.usecs;

  1387. 

  1388.         if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1389.         {

  1390.             fTimeInfo.bbt.valid = true;

  1391. 

  1392.             fTimeInfo.bbt.bar  = timeInfo.bbt.bar;

  1393.             fTimeInfo.bbt.beat = timeInfo.bbt.beat;

  1394.             fTimeInfo.bbt.tick = timeInfo.bbt.tick;

  1395.             fTimeInfo.bbt.barStartTick = timeInfo.bbt.barStartTick;

  1396. 

  1397.             fTimeInfo.bbt.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1398.             fTimeInfo.bbt.beatType    = timeInfo.bbt.beatType;

  1399. 

  1400.             fTimeInfo.bbt.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1401.             fTimeInfo.bbt.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1402.         }

  1403.         else

  1404.             fTimeInfo.bbt.valid = false;

  1405. 

  1406.         // --------------------------------------------------------------------------------------------------------

  1407.         // Event Input and Processing

  1408. 

  1409.         if (pData->event.portIn != nullptr)

  1410.         {

  1411.             // ----------------------------------------------------------------------------------------------------

  1412.             // MIDI Input (External)

  1413. 

  1414.             if (pData->extNotes.mutex.tryLock())

  1415.             {

  1416.                 ExternalMidiNote note = { 0, 0, 0 };

  1417. 

  1418.                 for (; fMidiEventCount < kPluginMaxMidiEvents*2 && ! pData->extNotes.data.isEmpty();)

  1419.                 {

  1420.                     note = pData->extNotes.data.getFirst(note, true);

  1421. 

  1422.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1423. 

  1424.                     NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1425. 

  1426.                     nativeEvent.data[0] = uint8_t((note.velo > 0 ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF) | (note.channel & MIDI_CHANNEL_BIT));

  1427.                     nativeEvent.data[1] = note.note;

  1428.                     nativeEvent.data[2] = note.velo;

  1429.                     nativeEvent.size    = 3;

  1430.                 }

  1431. 

  1432.                 pData->extNotes.mutex.unlock();

  1433. 

  1434.             } // End of MIDI Input (External)

  1435. 

  1436.             // ----------------------------------------------------------------------------------------------------

  1437.             // Event Input (System)

  1438. 

  1439. #ifndef BUILD_BRIDGE

  1440.             bool allNotesOffSent = false;

  1441. #endif

  1442.             bool sampleAccurate  = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1443. 

  1444.             uint32_t startTime  = 0;

  1445.             uint32_t timeOffset = 0;

  1446.             uint32_t nextBankId;

  1447. 

  1448.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1449.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1450.             else

  1451.                 nextBankId = 0;

  1452. 

  1453.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1454.             {

  1455.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1456. 

  1457.                 if (event.time >= frames)

  1458.                     continue;

  1459. 

  1460.                 CARLA_ASSERT_INT2(event.time >= timeOffset, event.time, timeOffset);

  1461. 

  1462.                 if (event.time > timeOffset && sampleAccurate)

  1463.                 {

  1464.                     if (processSingle(audioIn, audioOut, cvIn, cvOut, event.time - timeOffset, timeOffset))

  1465.                     {

  1466.                         startTime  = 0;

  1467.                         timeOffset = event.time;

  1468. 

  1469.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1470.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1471.                         else

  1472.                             nextBankId = 0;

  1473. 

  1474.                         if (fMidiEventCount > 0)

  1475.                         {

  1476.                             carla_zeroStruct<NativeMidiEvent>(fMidiEvents, fMidiEventCount);

  1477.                             fMidiEventCount = 0;

  1478.                         }

  1479.                     }

  1480.                     else

  1481.                         startTime += timeOffset;

  1482.                 }

  1483. 

  1484.                 // Control change

  1485.                 switch (event.type)

  1486.                 {

  1487.                 case kEngineEventTypeNull:

  1488.                     break;

  1489. 

  1490.                 case kEngineEventTypeControl: {

  1491.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1492. 

  1493.                     switch (ctrlEvent.type)

  1494.                     {

  1495.                     case kEngineControlEventTypeNull:

  1496.                         break;

  1497. 

  1498.                     case kEngineControlEventTypeParameter: {

  1499. #ifndef BUILD_BRIDGE

  1500.                         // Control backend stuff

  1501.                         if (event.channel == pData->ctrlChannel)

  1502.                         {

  1503.                             float value;

  1504. 

  1505.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) > 0)

  1506.                             {

  1507.                                 value = ctrlEvent.value;

  1508.                                 setDryWet(value, false, false);

  1509.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1510.                             }

  1511. 

  1512.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) > 0)

  1513.                             {

  1514.                                 value = ctrlEvent.value*127.0f/100.0f;

  1515.                                 setVolume(value, false, false);

  1516.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1517.                             }

  1518. 

  1519.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) > 0)

  1520.                             {

  1521.                                 float left, right;

  1522.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1523. 

  1524.                                 if (value < 0.0f)

  1525.                                 {

  1526.                                     left  = -1.0f;

  1527.                                     right = (value*2.0f)+1.0f;

  1528.                                 }

  1529.                                 else if (value > 0.0f)

  1530.                                 {

  1531.                                     left  = (value*2.0f)-1.0f;

  1532.                                     right = 1.0f;

  1533.                                 }

  1534.                                 else

  1535.                                 {

  1536.                                     left  = -1.0f;

  1537.                                     right = 1.0f;

  1538.                                 }

  1539. 

  1540.                                 setBalanceLeft(left, false, false);

  1541.                                 setBalanceRight(right, false, false);

  1542.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1543.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1544.                             }

  1545.                         }

  1546. #endif

  1547.                         // Control plugin parameters

  1548.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1549.                         {

  1550.                             if (pData->param.data[k].midiChannel != event.channel)

  1551.                                 continue;

  1552.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1553.                                 continue;

  1554.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1555.                                 continue;

  1556.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1557.                                 continue;

  1558. 

  1559.                             float value;

  1560. 

  1561.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1562.                             {

  1563.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1564.                             }

  1565.                             else

  1566.                             {

  1567.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1568. 

  1569.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1570.                                     value = std::rint(value);

  1571.                             }

  1572. 

  1573.                             setParameterValue(k, value, false, false, false);

  1574.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1575.                         }

  1576. 

  1577.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param < MAX_MIDI_CONTROL)

  1578.                         {

  1579.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1580.                                 continue;

  1581. 

  1582.                             NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1583.                             carla_zeroStruct(nativeEvent);

  1584. 

  1585.                             nativeEvent.time    = sampleAccurate ? startTime : event.time;

  1586.                             nativeEvent.data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (event.channel & MIDI_CHANNEL_BIT));

  1587.                             nativeEvent.data[1] = uint8_t(ctrlEvent.param);

  1588.                             nativeEvent.data[2] = uint8_t(ctrlEvent.value*127.0f);

  1589.                             nativeEvent.size    = 3;

  1590.                         }

  1591.                         break;

  1592.                     }

  1593. 

  1594.                     case kEngineControlEventTypeMidiBank:

  1595.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1596.                         {

  1597.                             if (event.channel == pData->ctrlChannel)

  1598.                                 nextBankId = ctrlEvent.param;

  1599.                         }

  1600.                         else if (pData->options & PLUGIN_OPTION_SEND_PROGRAM_CHANGES)

  1601.                         {

  1602.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1603.                                 continue;

  1604. 

  1605.                             NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1606.                             carla_zeroStruct(nativeEvent);

  1607. 

  1608.                             nativeEvent.time    = sampleAccurate ? startTime : event.time;

  1609.                             nativeEvent.data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (event.channel & MIDI_CHANNEL_BIT));

  1610.                             nativeEvent.data[1] = MIDI_CONTROL_BANK_SELECT;

  1611.                             nativeEvent.data[2] = uint8_t(ctrlEvent.param);

  1612.                             nativeEvent.size    = 3;

  1613.                         }

  1614.                         break;

  1615. 

  1616.                     case kEngineControlEventTypeMidiProgram:

  1617.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1618.                         {

  1619.                             if (event.channel < MAX_MIDI_CHANNELS)

  1620.                             {

  1621.                                 const uint32_t nextProgramId(ctrlEvent.param);

  1622. 

  1623.                                 for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1624.                                 {

  1625.                                     if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1626.                                     {

  1627.                                         fDescriptor->set_midi_program(fHandle, event.channel, nextBankId, nextProgramId);

  1628. 

  1629.                                         if (fHandle2 != nullptr)

  1630.                                             fDescriptor->set_midi_program(fHandle2, event.channel, nextBankId, nextProgramId);

  1631. 

  1632.                                         fCurMidiProgs[event.channel] = static_cast<int32_t>(k);

  1633. 

  1634.                                         if (event.channel == pData->ctrlChannel)

  1635.                                             pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, static_cast<int32_t>(k), 0, 0.0f);

  1636. 

  1637.                                         break;

  1638.                                     }

  1639.                                 }

  1640.                             }

  1641.                         }

  1642.                         else if (pData->options & PLUGIN_OPTION_SEND_PROGRAM_CHANGES)

  1643.                         {

  1644.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1645.                                 continue;

  1646. 

  1647.                             NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1648.                             carla_zeroStruct(nativeEvent);

  1649. 

  1650.                             nativeEvent.time    = sampleAccurate ? startTime : event.time;

  1651.                             nativeEvent.data[0] = uint8_t(MIDI_STATUS_PROGRAM_CHANGE | (event.channel & MIDI_CHANNEL_BIT));

  1652.                             nativeEvent.data[1] = uint8_t(ctrlEvent.param);

  1653.                             nativeEvent.size    = 2;

  1654.                         }

  1655.                         break;

  1656. 

  1657.                     case kEngineControlEventTypeAllSoundOff:

  1658.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1659.                         {

  1660.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1661.                                 continue;

  1662. 

  1663.                             NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1664.                             carla_zeroStruct(nativeEvent);

  1665. 

  1666.                             nativeEvent.time    = sampleAccurate ? startTime : event.time;

  1667.                             nativeEvent.data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (event.channel & MIDI_CHANNEL_BIT));

  1668.                             nativeEvent.data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1669.                             nativeEvent.data[2] = 0;

  1670.                             nativeEvent.size    = 3;

  1671.                         }

  1672.                         break;

  1673. 

  1674.                     case kEngineControlEventTypeAllNotesOff:

  1675.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1676.                         {

  1677. #ifndef BUILD_BRIDGE

  1678.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1679.                             {

  1680.                                 allNotesOffSent = true;

  1681.                                 sendMidiAllNotesOffToCallback();

  1682.                             }

  1683. #endif

  1684. 

  1685.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1686.                                 continue;

  1687. 

  1688.                             NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1689.                             carla_zeroStruct(nativeEvent);

  1690. 

  1691.                             nativeEvent.time    = sampleAccurate ? startTime : event.time;

  1692.                             nativeEvent.data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (event.channel & MIDI_CHANNEL_BIT));

  1693.                             nativeEvent.data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1694.                             nativeEvent.data[2] = 0;

  1695.                             nativeEvent.size    = 3;

  1696.                         }

  1697.                         break;

  1698.                     }

  1699.                     break;

  1700.                 }

  1701. 

  1702.                 case kEngineEventTypeMidi: {

  1703.                     if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1704.                         continue;

  1705. 

  1706.                     const EngineMidiEvent& midiEvent(event.midi);

  1707. 

  1708.                     if (midiEvent.size > 4)

  1709.                         continue;

  1710. #ifdef CARLA_PROPER_CPP11_SUPPORT

  1711.                     static_assert(4 <= EngineMidiEvent::kDataSize, "Incorrect data");

  1712. #endif

  1713. 

  1714.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1715. 

  1716.                     if (status == MIDI_STATUS_CHANNEL_PRESSURE && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1717.                         continue;

  1718.                     if (status == MIDI_STATUS_CONTROL_CHANGE && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1719.                         continue;

  1720.                     if (status == MIDI_STATUS_POLYPHONIC_AFTERTOUCH && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1721.                         continue;

  1722.                     if (status == MIDI_STATUS_PITCH_WHEEL_CONTROL && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1723.                         continue;

  1724. 

  1725.                     // Fix bad note-off

  1726.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1727.                         status = MIDI_STATUS_NOTE_OFF;

  1728. 

  1729.                     NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1730.                     carla_zeroStruct(nativeEvent);

  1731. 

  1732.                     nativeEvent.port = midiEvent.port;

  1733.                     nativeEvent.time = sampleAccurate ? startTime : event.time;

  1734.                     nativeEvent.size = midiEvent.size;

  1735. 

  1736.                     nativeEvent.data[0] = uint8_t(status | (event.channel & MIDI_CHANNEL_BIT));

  1737.                     nativeEvent.data[1] = midiEvent.size >= 2 ? midiEvent.data[1] : 0;

  1738.                     nativeEvent.data[2] = midiEvent.size >= 3 ? midiEvent.data[2] : 0;

  1739.                     nativeEvent.data[3] = midiEvent.size == 4 ? midiEvent.data[3] : 0;

  1740. 

  1741.                     if (status == MIDI_STATUS_NOTE_ON)

  1742.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, midiEvent.data[1], midiEvent.data[2]);

  1743.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1744.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, midiEvent.data[1], 0.0f);

  1745.                 } break;

  1746.                 } // switch (event.type)

  1747.             }

  1748. 

  1749.             pData->postRtEvents.trySplice();

  1750. 

  1751.             if (frames > timeOffset)

  1752.                 processSingle(audioIn, audioOut, cvIn, cvOut, frames - timeOffset, timeOffset);

  1753. 

  1754.         } // End of Event Input and Processing

  1755. 

  1756.         // --------------------------------------------------------------------------------------------------------

  1757.         // Plugin processing (no events)

  1758. 

  1759.         else

  1760.         {

  1761.             processSingle(audioIn, audioOut, cvIn, cvOut, frames, 0);

  1762. 

  1763.         } // End of Plugin processing (no events)

  1764. 

  1765.         // --------------------------------------------------------------------------------------------------------

  1766.         // Control and MIDI Output

  1767. 

  1768.         if (fMidiOut.count > 0 || pData->event.portOut != nullptr)

  1769.         {

  1770. #ifndef BUILD_BRIDGE

  1771.             float value, curValue;

  1772. 

  1773.             for (uint32_t k=0; k < pData->param.count; ++k)

  1774.             {

  1775.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1776.                     continue;

  1777. 

  1778.                 curValue = fDescriptor->get_parameter_value(fHandle, k);

  1779.                 pData->param.ranges[k].fixValue(curValue);

  1780. 

  1781.                 if (pData->param.data[k].midiCC > 0)

  1782.                 {

  1783.                     value = pData->param.ranges[k].getNormalizedValue(curValue);

  1784.                     pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), value);

  1785.                 }

  1786.             }

  1787. #endif

  1788. 

  1789.             // reverse lookup MIDI events

  1790.             for (uint32_t k = (kPluginMaxMidiEvents*2)-1; k >= fMidiEventCount; --k)

  1791.             {

  1792.                 if (fMidiEvents[k].data[0] == 0)

  1793.                     break;

  1794. 

  1795.                 const uint8_t channel = uint8_t(MIDI_GET_CHANNEL_FROM_DATA(fMidiEvents[k].data));

  1796.                 const uint8_t port    = fMidiEvents[k].port;

  1797. 

  1798.                 if (pData->event.portOut != nullptr)

  1799.                     pData->event.portOut->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].size, fMidiEvents[k].data);

  1800.                 else if (port < fMidiOut.count)

  1801.                     fMidiOut.ports[port]->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].size, fMidiEvents[k].data);

  1802.                 else

  1803.                     carla_stdout("MIDI event output port out of bounds!");

  1804.             }

  1805. 

  1806.         } // End of Control and MIDI Output

  1807.     }

  1808. 

  1809.     bool processSingle(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames, const uint32_t timeOffset)

  1810.     {

  1811.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1812. 

  1813.         if (pData->audioIn.count > 0)

  1814.         {

  1815.             CARLA_SAFE_ASSERT_RETURN(audioIn != nullptr, false);

  1816.         }

  1817.         if (pData->audioOut.count > 0)

  1818.         {

  1819.             CARLA_SAFE_ASSERT_RETURN(audioOut != nullptr, false);

  1820.         }

  1821.         if (pData->cvIn.count > 0)

  1822.         {

  1823.             CARLA_SAFE_ASSERT_RETURN(cvIn != nullptr, false);

  1824.         }

  1825.         if (pData->cvOut.count > 0)

  1826.         {

  1827.             CARLA_SAFE_ASSERT_RETURN(cvOut != nullptr, false);

  1828.         }

  1829. 

  1830.         // --------------------------------------------------------------------------------------------------------

  1831.         // Try lock, silence otherwise

  1832. 

  1833.         if (pData->engine->isOffline())

  1834.         {

  1835.             pData->singleMutex.lock();

  1836.         }

  1837.         else if (! pData->singleMutex.tryLock())

  1838.         {

  1839.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1840.             {

  1841.                 for (uint32_t k=0; k < frames; ++k)

  1842.                     audioOut[i][k+timeOffset] = 0.0f;

  1843.             }

  1844.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1845.             {

  1846.                 for (uint32_t k=0; k < frames; ++k)

  1847.                     cvOut[i][k+timeOffset] = 0.0f;

  1848.             }

  1849. 

  1850.             return false;

  1851.         }

  1852. 

  1853.         // --------------------------------------------------------------------------------------------------------

  1854.         // Set audio buffers

  1855. 

  1856.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1857.             FloatVectorOperations::copy(fAudioInBuffers[i], audioIn[i]+timeOffset, static_cast<int>(frames));

  1858. 

  1859.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1860.             FloatVectorOperations::clear(fAudioOutBuffers[i], static_cast<int>(frames));

  1861. 

  1862. #if 0

  1863.         // --------------------------------------------------------------------------------------------------------

  1864.         // Set CV buffers

  1865. 

  1866.         for (uint32_t i=0; i < pData->cvIn.count; ++i)

  1867.             FloatVectorOperations::copy(fCvInBuffers[i], cvIn[i]+timeOffset, static_cast<int>(frames));

  1868. 

  1869.         for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1870.             FloatVectorOperations::clear(fCvOutBuffers[i], static_cast<int>(frames));

  1871. #endif

  1872. 

  1873.         // --------------------------------------------------------------------------------------------------------

  1874.         // Run plugin

  1875. 

  1876.         fIsProcessing = true;

  1877. 

  1878.         if (fHandle2 == nullptr)

  1879.         {

  1880.             fDescriptor->process(fHandle, fAudioInBuffers, fAudioOutBuffers, frames, fMidiEvents, fMidiEventCount);

  1881.         }

  1882.         else

  1883.         {

  1884.             fDescriptor->process(fHandle,

  1885.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[0] : nullptr,

  1886.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[0] : nullptr,

  1887.                                  frames, fMidiEvents, fMidiEventCount);

  1888. 

  1889.             fDescriptor->process(fHandle2,

  1890.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[1] : nullptr,

  1891.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[1] : nullptr,

  1892.                                  frames, fMidiEvents, fMidiEventCount);

  1893.         }

  1894. 

  1895.         fIsProcessing = false;

  1896.         fTimeInfo.frame += frames;

  1897. 

  1898. #ifndef BUILD_BRIDGE

  1899.         // --------------------------------------------------------------------------------------------------------

  1900.         // Post-processing (dry/wet, volume and balance)

  1901. 

  1902.         {

  1903.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && ! carla_compareFloats(pData->postProc.dryWet, 1.0f);

  1904.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_compareFloats(pData->postProc.balanceLeft, -1.0f) && carla_compareFloats(pData->postProc.balanceRight, 1.0f));

  1905. 

  1906.             bool isPair;

  1907.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1908. 

  1909.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1910.             {

  1911.                 // Dry/Wet

  1912.                 if (doDryWet)

  1913.                 {

  1914.                     for (uint32_t k=0; k < frames; ++k)

  1915.                     {

  1916.                         bufValue = fAudioInBuffers[(pData->audioIn.count == 1) ? 0 : i][k];

  1917.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1918.                     }

  1919.                 }

  1920. 

  1921.                 // Balance

  1922.                 if (doBalance)

  1923.                 {

  1924.                     isPair = (i % 2 == 0);

  1925. 

  1926.                     if (isPair)

  1927.                     {

  1928.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1929.                         FloatVectorOperations::copy(oldBufLeft, fAudioOutBuffers[i], static_cast<int>(frames));

  1930.                     }

  1931. 

  1932.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1933.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1934. 

  1935.                     for (uint32_t k=0; k < frames; ++k)

  1936.                     {

  1937.                         if (isPair)

  1938.                         {

  1939.                             // left

  1940.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1941.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1942.                         }

  1943.                         else

  1944.                         {

  1945.                             // right

  1946.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1947.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1948.                         }

  1949.                     }

  1950.                 }

  1951. 

  1952.                 // Volume (and buffer copy)

  1953.                 {

  1954.                     for (uint32_t k=0; k < frames; ++k)

  1955.                         audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1956.                 }

  1957.             }

  1958. 

  1959.         } // End of Post-processing

  1960. #else

  1961.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1962.         {

  1963.             for (uint32_t k=0; k < frames; ++k)

  1964.                 audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1965.         }

  1966. #endif

  1967. 

  1968. #if 0

  1969.         for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1970.         {

  1971.             for (uint32_t k=0; k < frames; ++k)

  1972.                 cvOut[i][k+timeOffset] = fCvOutBuffers[i][k];

  1973.         }

  1974. #endif

  1975. 

  1976.         // --------------------------------------------------------------------------------------------------------

  1977. 

  1978.         pData->singleMutex.unlock();

  1979.         return true;

  1980.     }

  1981. 

  1982.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1983.     {

  1984.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1985.         carla_debug("CarlaPluginNative::bufferSizeChanged(%i)", newBufferSize);

  1986. 

  1987.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1988.         {

  1989.             if (fAudioInBuffers[i] != nullptr)

  1990.                 delete[] fAudioInBuffers[i];

  1991.             fAudioInBuffers[i] = new float[newBufferSize];

  1992.         }

  1993. 

  1994.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1995.         {

  1996.             if (fAudioOutBuffers[i] != nullptr)

  1997.                 delete[] fAudioOutBuffers[i];

  1998.             fAudioOutBuffers[i] = new float[newBufferSize];

  1999.         }

  2000. 

  2001.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  2002.         {

  2003.             fDescriptor->dispatcher(fHandle, NATIVE_PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, static_cast<intptr_t>(newBufferSize), nullptr, 0.0f);

  2004. 

  2005.             if (fHandle2 != nullptr)

  2006.                 fDescriptor->dispatcher(fHandle2, NATIVE_PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, static_cast<intptr_t>(newBufferSize), nullptr, 0.0f);

  2007.         }

  2008.     }

  2009. 

  2010.     void sampleRateChanged(const double newSampleRate) override

  2011.     {

  2012.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  2013.         carla_debug("CarlaPluginNative::sampleRateChanged(%g)", newSampleRate);

  2014. 

  2015.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  2016.         {

  2017.             fDescriptor->dispatcher(fHandle, NATIVE_PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  2018. 

  2019.             if (fHandle2 != nullptr)

  2020.                 fDescriptor->dispatcher(fHandle2, NATIVE_PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  2021.         }

  2022.     }

  2023. 

  2024.     void offlineModeChanged(const bool isOffline) override

  2025.     {

  2026.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  2027.         {

  2028.             fDescriptor->dispatcher(fHandle, NATIVE_PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  2029. 

  2030.             if (fHandle2 != nullptr)

  2031.                 fDescriptor->dispatcher(fHandle2, NATIVE_PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  2032.         }

  2033.     }

  2034. 

  2035.     // -------------------------------------------------------------------

  2036.     // Plugin buffers

  2037. 

  2038.     void initBuffers() const noexcept override

  2039.     {

  2040.         fMidiIn.initBuffers();

  2041.         fMidiOut.initBuffers();

  2042. 

  2043.         CarlaPlugin::initBuffers();

  2044.     }

  2045. 

  2046.     void clearBuffers() noexcept override

  2047.     {

  2048.         carla_debug("CarlaPluginNative::clearBuffers() - start");

  2049. 

  2050.         if (fAudioInBuffers != nullptr)

  2051.         {

  2052.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  2053.             {

  2054.                 if (fAudioInBuffers[i] != nullptr)

  2055.                 {

  2056.                     delete[] fAudioInBuffers[i];

  2057.                     fAudioInBuffers[i] = nullptr;

  2058.                 }

  2059.             }

  2060. 

  2061.             delete[] fAudioInBuffers;

  2062.             fAudioInBuffers = nullptr;

  2063.         }

  2064. 

  2065.         if (fAudioOutBuffers != nullptr)

  2066.         {

  2067.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  2068.             {

  2069.                 if (fAudioOutBuffers[i] != nullptr)

  2070.                 {

  2071.                     delete[] fAudioOutBuffers[i];

  2072.                     fAudioOutBuffers[i] = nullptr;

  2073.                 }

  2074.             }

  2075. 

  2076.             delete[] fAudioOutBuffers;

  2077.             fAudioOutBuffers = nullptr;

  2078.         }

  2079. 

  2080.         fMidiIn.clear();

  2081.         fMidiOut.clear();

  2082. 

  2083.         CarlaPlugin::clearBuffers();

  2084. 

  2085.         carla_debug("CarlaPluginNative::clearBuffers() - end");

  2086.     }

  2087. 

  2088.     // -------------------------------------------------------------------

  2089.     // Post-poned UI Stuff

  2090. 

  2091.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  2092.     {

  2093.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2094.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2095.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  2096. 

  2097.         if (! fIsUiVisible)

  2098.             return;

  2099. 

  2100.         if (fDescriptor->ui_set_parameter_value != nullptr)

  2101.             fDescriptor->ui_set_parameter_value(fHandle, index, value);

  2102.     }

  2103. 

  2104.     void uiMidiProgramChange(const uint32_t index) noexcept override

  2105.     {

  2106.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2107.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2108.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  2109. 

  2110.         if (! fIsUiVisible)

  2111.             return;

  2112.         if (index >= pData->midiprog.count)

  2113.             return;

  2114. 

  2115.         if (fDescriptor->ui_set_midi_program != nullptr)

  2116.             fDescriptor->ui_set_midi_program(fHandle, 0, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  2117.     }

  2118. 

  2119.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  2120.     {

  2121.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2122.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2123.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  2124.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2125.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  2126. 

  2127.         if (! fIsUiVisible)

  2128.             return;

  2129. 

  2130.         // TODO

  2131.     }

  2132. 

  2133.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  2134.     {

  2135.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2136.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2137.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  2138.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2139. 

  2140.         if (! fIsUiVisible)

  2141.             return;

  2142.         if (fDescriptor == nullptr || fHandle == nullptr)

  2143.             return;

  2144. 

  2145.         // TODO

  2146.     }

  2147. 

  2148.     // -------------------------------------------------------------------

  2149. 

  2150. protected:

  2151.     uint32_t handleGetBufferSize() const noexcept

  2152.     {

  2153.         return pData->engine->getBufferSize();

  2154.     }

  2155. 

  2156.     double handleGetSampleRate() const noexcept

  2157.     {

  2158.         return pData->engine->getSampleRate();

  2159.     }

  2160. 

  2161.     bool handleIsOffline() const noexcept

  2162.     {

  2163.         return pData->engine->isOffline();

  2164.     }

  2165. 

  2166.     const NativeTimeInfo* handleGetTimeInfo() const noexcept

  2167.     {

  2168.         CARLA_SAFE_ASSERT_RETURN(fIsProcessing, nullptr);

  2169. 

  2170.         return &fTimeInfo;

  2171.     }

  2172. 

  2173.     bool handleWriteMidiEvent(const NativeMidiEvent* const event)

  2174.     {

  2175.         CARLA_SAFE_ASSERT_RETURN(pData->enabled, false);

  2176.         CARLA_SAFE_ASSERT_RETURN(fIsProcessing, false);

  2177.         CARLA_SAFE_ASSERT_RETURN(fMidiOut.count > 0 || pData->event.portOut != nullptr, false);

  2178.         CARLA_SAFE_ASSERT_RETURN(event != nullptr, false);

  2179.         CARLA_SAFE_ASSERT_RETURN(event->data[0] != 0, false);

  2180. 

  2181.         // reverse-find first free event, and put it there

  2182.         for (uint32_t i=(kPluginMaxMidiEvents*2)-1; i >= fMidiEventCount; --i)

  2183.         {

  2184.             if (fMidiEvents[i].data[0] != 0)

  2185.                 continue;

  2186. 

  2187.             std::memcpy(&fMidiEvents[i], event, sizeof(NativeMidiEvent));

  2188.             return true;

  2189.         }

  2190. 

  2191.         carla_stdout("CarlaPluginNative::handleWriteMidiEvent(%p) - buffer full", event);

  2192.         return false;

  2193.     }

  2194. 

  2195.     void handleUiParameterChanged(const uint32_t index, const float value)

  2196.     {

  2197.         setParameterValue(index, value, false, true, true);

  2198.     }

  2199. 

  2200.     void handleUiCustomDataChanged(const char* const key, const char* const value)

  2201.     {

  2202.         setCustomData(CUSTOM_DATA_TYPE_STRING, key, value, false);

  2203.     }

  2204. 

  2205.     void handleUiClosed()

  2206.     {

  2207.         pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2208.         fIsUiVisible = false;

  2209.     }

  2210. 

  2211.     const char* handleUiOpenFile(const bool isDir, const char* const title, const char* const filter)

  2212.     {

  2213.         return pData->engine->runFileCallback(FILE_CALLBACK_OPEN, isDir, title, filter);

  2214.     }

  2215. 

  2216.     const char* handleUiSaveFile(const bool isDir, const char* const title, const char* const filter)

  2217.     {

  2218.         return pData->engine->runFileCallback(FILE_CALLBACK_SAVE, isDir, title, filter);

  2219.     }

  2220. 

  2221.     intptr_t handleDispatcher(const NativeHostDispatcherOpcode opcode, const int32_t index, const intptr_t value, void* const ptr, const float opt)

  2222.     {

  2223.         carla_debug("CarlaPluginNative::handleDispatcher(%i, %i, " P_INTPTR ", %p, %f)", opcode, index, value, ptr, opt);

  2224. 

  2225.         intptr_t ret = 0;

  2226. 

  2227.         switch (opcode)

  2228.         {

  2229.         case NATIVE_HOST_OPCODE_NULL:

  2230.             break;

  2231.         case NATIVE_HOST_OPCODE_UPDATE_PARAMETER:

  2232.             // TODO

  2233.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2234.             break;

  2235.         case NATIVE_HOST_OPCODE_UPDATE_MIDI_PROGRAM:

  2236.             // TODO

  2237.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2238.             break;

  2239.         case NATIVE_HOST_OPCODE_RELOAD_PARAMETERS:

  2240.             reload(); // FIXME

  2241.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PARAMETERS, pData->id, -1, 0, 0.0f, nullptr);

  2242.             break;

  2243.         case NATIVE_HOST_OPCODE_RELOAD_MIDI_PROGRAMS:

  2244.             reloadPrograms(false);

  2245.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, -1, 0, 0.0f, nullptr);

  2246.             break;

  2247.         case NATIVE_HOST_OPCODE_RELOAD_ALL:

  2248.             reload();

  2249.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_ALL, pData->id, -1, 0, 0.0f, nullptr);

  2250.             break;

  2251.         case NATIVE_HOST_OPCODE_UI_UNAVAILABLE:

  2252.             pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, -1, 0, 0.0f, nullptr);

  2253.             fIsUiVisible = false;

  2254.             break;

  2255.         case NATIVE_HOST_OPCODE_HOST_IDLE:

  2256.             pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2257.             break;

  2258.         }

  2259. 

  2260.         return ret;

  2261. 

  2262.         // unused for now

  2263.         (void)index;

  2264.         (void)value;

  2265.         (void)ptr;

  2266.         (void)opt;

  2267.     }

  2268. 

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

  2270. 

  2271. public:

  2272.     void* getNativeHandle() const noexcept override

  2273.     {

  2274.         return fHandle;

  2275.     }

  2276. 

  2277.     const void* getNativeDescriptor() const noexcept override

  2278.     {

  2279.         return fDescriptor;

  2280.     }

  2281. 

  2282.     // -------------------------------------------------------------------

  2283. 

  2284.     bool init(const char* const name, const char* const label)

  2285.     {

  2286.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2287. 

  2288.         // ---------------------------------------------------------------

  2289.         // first checks

  2290. 

  2291.         if (pData->client != nullptr)

  2292.         {

  2293.             pData->engine->setLastError("Plugin client is already registered");

  2294.             return false;

  2295.         }

  2296. 

  2297.         if (label == nullptr && label[0] != '\0')

  2298.         {

  2299.             pData->engine->setLastError("null label");

  2300.             return false;

  2301.         }

  2302. 

  2303.         // ---------------------------------------------------------------

  2304.         // get descriptor that matches label

  2305. 

  2306.         sPluginInitializer.initIfNeeded();

  2307. 

  2308.         for (LinkedList<const NativePluginDescriptor*>::Itenerator it = gPluginDescriptors.begin(); it.valid(); it.next())

  2309.         {

  2310.             fDescriptor = it.getValue();

  2311. 

  2312.             CARLA_SAFE_ASSERT_BREAK(fDescriptor != nullptr);

  2313. 

  2314.             carla_debug("Check vs \"%s\"", fDescriptor->label);

  2315. 

  2316.             if (fDescriptor->label != nullptr && std::strcmp(fDescriptor->label, label) == 0)

  2317.                 break;

  2318. 

  2319.             fDescriptor = nullptr;

  2320.         }

  2321. 

  2322.         if (fDescriptor == nullptr)

  2323.         {

  2324.             pData->engine->setLastError("Invalid internal plugin");

  2325.             return false;

  2326.         }

  2327. 

  2328.         // ---------------------------------------------------------------

  2329.         // set icon

  2330. 

  2331.         if (std::strcmp(fDescriptor->label, "audiofile") == 0)

  2332.             pData->iconName = carla_strdup_safe("file");

  2333.         else if (std::strcmp(fDescriptor->label, "midifile") == 0)

  2334.             pData->iconName = carla_strdup_safe("file");

  2335. 

  2336.         // ---------------------------------------------------------------

  2337.         // get info

  2338. 

  2339.         if (name != nullptr && name[0] != '\0')

  2340.             pData->name = pData->engine->getUniquePluginName(name);

  2341.         else if (fDescriptor->name != nullptr && fDescriptor->name[0] != '\0')

  2342.             pData->name = pData->engine->getUniquePluginName(fDescriptor->name);

  2343.         else

  2344.             pData->name = pData->engine->getUniquePluginName(label);

  2345. 

  2346.         {

  2347.             CARLA_ASSERT(fHost.uiName == nullptr);

  2348. 

  2349.             char uiName[std::strlen(pData->name)+6+1];

  2350.             std::strcpy(uiName, pData->name);

  2351.             std::strcat(uiName, " (GUI)");

  2352. 

  2353.             fHost.uiName = carla_strdup(uiName);

  2354.         }

  2355. 

  2356.         // ---------------------------------------------------------------

  2357.         // register client

  2358. 

  2359.         pData->client = pData->engine->addClient(this);

  2360. 

  2361.         if (pData->client == nullptr || ! pData->client->isOk())

  2362.         {

  2363.             pData->engine->setLastError("Failed to register plugin client");

  2364.             return false;

  2365.         }

  2366. 

  2367.         // ---------------------------------------------------------------

  2368.         // initialize plugin

  2369. 

  2370.         fHandle = fDescriptor->instantiate(&fHost);

  2371. 

  2372.         if (fHandle == nullptr)

  2373.         {

  2374.             pData->engine->setLastError("Plugin failed to initialize");

  2375.             return false;

  2376.         }

  2377. 

  2378.         // ---------------------------------------------------------------

  2379.         // set default options

  2380. 

  2381.         const bool hasMidiProgs(fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_count(fHandle) > 0);

  2382. 

  2383.         pData->options = 0x0;

  2384. 

  2385.         if (getMidiInCount() > 0 || (fDescriptor->hints & NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS) != 0)

  2386.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2387. 

  2388.         if (pData->engine->getOptions().forceStereo)

  2389.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2390. 

  2391.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_CHANNEL_PRESSURE)

  2392.             pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  2393.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_NOTE_AFTERTOUCH)

  2394.             pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  2395.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_PITCHBEND)

  2396.             pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  2397.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_ALL_SOUND_OFF)

  2398.             pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  2399. 

  2400.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_PROGRAM_CHANGES)

  2401.         {

  2402.             CARLA_SAFE_ASSERT(! hasMidiProgs);

  2403.             pData->options |= PLUGIN_OPTION_SEND_PROGRAM_CHANGES;

  2404. 

  2405.             if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_CONTROL_CHANGES)

  2406.                 pData->options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  2407.         }

  2408.         else if (hasMidiProgs && fDescriptor->category == NATIVE_PLUGIN_CATEGORY_SYNTH)

  2409.             pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  2410. 

  2411.         return true;

  2412.     }

  2413. 

  2414. 

  2415. private:

  2416.     NativePluginHandle   fHandle;

  2417.     NativePluginHandle   fHandle2;

  2418.     NativeHostDescriptor fHost;

  2419.     const NativePluginDescriptor* fDescriptor;

  2420. 

  2421.     bool fIsProcessing;

  2422.     bool fIsUiVisible;

  2423. 

  2424.     float**         fAudioInBuffers;

  2425.     float**         fAudioOutBuffers;

  2426.     uint32_t        fMidiEventCount;

  2427.     NativeMidiEvent fMidiEvents[kPluginMaxMidiEvents*2];

  2428. 

  2429.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  2430. 

  2431.     NativePluginMidiData fMidiIn;

  2432.     NativePluginMidiData fMidiOut;

  2433. 

  2434.     NativeTimeInfo fTimeInfo;

  2435. 

  2436.     // -------------------------------------------------------------------

  2437. 

  2438.     #define handlePtr ((CarlaPluginNative*)handle)

  2439. 

  2440.     static uint32_t carla_host_get_buffer_size(NativeHostHandle handle) noexcept

  2441.     {

  2442.         return handlePtr->handleGetBufferSize();

  2443.     }

  2444. 

  2445.     static double carla_host_get_sample_rate(NativeHostHandle handle) noexcept

  2446.     {

  2447.         return handlePtr->handleGetSampleRate();

  2448.     }

  2449. 

  2450.     static bool carla_host_is_offline(NativeHostHandle handle) noexcept

  2451.     {

  2452.         return handlePtr->handleIsOffline();

  2453.     }

  2454. 

  2455.     static const NativeTimeInfo* carla_host_get_time_info(NativeHostHandle handle) noexcept

  2456.     {

  2457.         return handlePtr->handleGetTimeInfo();

  2458.     }

  2459. 

  2460.     static bool carla_host_write_midi_event(NativeHostHandle handle, const NativeMidiEvent* event)

  2461.     {

  2462.         return handlePtr->handleWriteMidiEvent(event);

  2463.     }

  2464. 

  2465.     static void carla_host_ui_parameter_changed(NativeHostHandle handle, uint32_t index, float value)

  2466.     {

  2467.         handlePtr->handleUiParameterChanged(index, value);

  2468.     }

  2469. 

  2470.     static void carla_host_ui_custom_data_changed(NativeHostHandle handle, const char* key, const char* value)

  2471.     {

  2472.         handlePtr->handleUiCustomDataChanged(key, value);

  2473.     }

  2474. 

  2475.     static void carla_host_ui_closed(NativeHostHandle handle)

  2476.     {

  2477.         handlePtr->handleUiClosed();

  2478.     }

  2479. 

  2480.     static const char* carla_host_ui_open_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2481.     {

  2482.         return handlePtr->handleUiOpenFile(isDir, title, filter);

  2483.     }

  2484. 

  2485.     static const char* carla_host_ui_save_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2486.     {

  2487.         return handlePtr->handleUiSaveFile(isDir, title, filter);

  2488.     }

  2489. 

  2490.     static intptr_t carla_host_dispatcher(NativeHostHandle handle, NativeHostDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  2491.     {

  2492.         return handlePtr->handleDispatcher(opcode, index, value, ptr, opt);

  2493.     }

  2494. 

  2495.     #undef handlePtr

  2496. 

  2497.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginNative)

  2498. };

  2499. 

  2500. // -----------------------------------------------------------------------

  2501. 

  2502. CarlaPlugin* CarlaPlugin::newNative(const Initializer& init)

  2503. {

  2504.     carla_debug("CarlaPlugin::newNative({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "})", init.engine, init.filename, init.name, init.label, init.uniqueId);

  2505. 

  2506.     CarlaPluginNative* const plugin(new CarlaPluginNative(init.engine, init.id));

  2507. 

  2508.     if (! plugin->init(init.name, init.label))

  2509.     {

  2510.         delete plugin;

  2511.         return nullptr;

  2512.     }

  2513. 

  2514.     return plugin;

  2515. }

  2516. 

  2517. // -----------------------------------------------------------------------

  2518. 

  2519. CARLA_BACKEND_END_NAMESPACE