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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) 2012-2017 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 "water/text/StringArray.h"

  25. 

  26. using water::jmax;

  27. using water::String;

  28. using water::StringArray;

  29. 

  30. CARLA_EXTERN_C

  31. std::size_t carla_getNativePluginCount() noexcept;

  32. 

  33. CARLA_EXTERN_C

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

  35. 

  36. // -----------------------------------------------------------------------

  37. 

  38. static LinkedList<const NativePluginDescriptor*> gPluginDescriptors;

  39. 

  40. void carla_register_native_plugin(const NativePluginDescriptor* desc)

  41. {

  42.     gPluginDescriptors.append(desc);

  43. }

  44. 

  45. // -----------------------------------------------------------------------

  46. 

  47. static

  48. class NativePluginInitializer

  49. {

  50. public:

  51.     NativePluginInitializer() noexcept

  52.         : fNeedsInit(true) {}

  53. 

  54.     ~NativePluginInitializer() noexcept

  55.     {

  56.         gPluginDescriptors.clear();

  57.     }

  58. 

  59.     void initIfNeeded() noexcept

  60.     {

  61.         if (! fNeedsInit)

  62.             return;

  63. 

  64.         fNeedsInit = false;

  65. 

  66.         try {

  67.             carla_register_all_native_plugins();

  68.         } CARLA_SAFE_EXCEPTION("carla_register_all_native_plugins")

  69.     }

  70. 

  71. private:

  72.     bool fNeedsInit;

  73. 

  74. } sPluginInitializer;

  75. 

  76. // -----------------------------------------------------------------------

  77. 

  78. std::size_t carla_getNativePluginCount() noexcept

  79. {

  80.     sPluginInitializer.initIfNeeded();

  81.     return gPluginDescriptors.count();

  82. }

  83. 

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

  85. {

  86.     sPluginInitializer.initIfNeeded();

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

  88. }

  89. 

  90. // -----------------------------------------------------------------------

  91. 

  92. CARLA_BACKEND_START_NAMESPACE

  93. 

  94. // -------------------------------------------------------------------

  95. // Fallback data

  96. 

  97. static const CustomData kCustomDataFallback = { nullptr, nullptr, nullptr };

  98. 

  99. // -----------------------------------------------------------------------

  100. 

  101. struct NativePluginMidiData {

  102.     uint32_t  count;

  103.     uint32_t* indexes;

  104.     CarlaEngineEventPort** ports;

  105. 

  106.     NativePluginMidiData() noexcept

  107.         : count(0),

  108.           indexes(nullptr),

  109.           ports(nullptr) {}

  110. 

  111.     ~NativePluginMidiData() noexcept

  112.     {

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

  114.         CARLA_SAFE_ASSERT(indexes == nullptr);

  115.         CARLA_SAFE_ASSERT(ports == nullptr);

  116.     }

  117. 

  118.     void createNew(const uint32_t newCount)

  119.     {

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

  121.         CARLA_SAFE_ASSERT_RETURN(indexes == nullptr,);

  122.         CARLA_SAFE_ASSERT_RETURN(ports == nullptr,);

  123.         CARLA_SAFE_ASSERT_RETURN(newCount > 0,);

  124. 

  125.         indexes = new uint32_t[newCount];

  126.         ports   = new CarlaEngineEventPort*[newCount];

  127.         count   = newCount;

  128. 

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

  130.             indexes[i] = 0;

  131. 

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

  133.             ports[i] = nullptr;

  134.     }

  135. 

  136.     void clear() noexcept

  137.     {

  138.         if (ports != nullptr)

  139.         {

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

  141.             {

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

  143.                 {

  144.                     delete ports[i];

  145.                     ports[i] = nullptr;

  146.                 }

  147.             }

  148. 

  149.             delete[] ports;

  150.             ports = nullptr;

  151.         }

  152. 

  153.         if (indexes != nullptr)

  154.         {

  155.             delete[] indexes;

  156.             indexes = nullptr;

  157.         }

  158. 

  159.         count = 0;

  160.     }

  161. 

  162.     void initBuffers() const noexcept

  163.     {

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

  165.         {

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

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

  168.         }

  169.     }

  170. 

  171.     CARLA_DECLARE_NON_COPY_STRUCT(NativePluginMidiData)

  172. };

  173. 

  174. // -----------------------------------------------------

  175. 

  176. class CarlaPluginNative : public CarlaPlugin

  177. {

  178. public:

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

  180.         : CarlaPlugin(engine, id),

  181.           fHandle(nullptr),

  182.           fHandle2(nullptr),

  183.           fHost(),

  184.           fDescriptor(nullptr),

  185.           fIsProcessing(false),

  186.           fIsOffline(false),

  187.           fIsUiAvailable(false),

  188.           fIsUiVisible(false),

  189.           fAudioInBuffers(nullptr),

  190.           fAudioOutBuffers(nullptr),

  191.           fMidiEventCount(0),

  192.           fCurBufferSize(engine->getBufferSize()),

  193.           fCurSampleRate(engine->getSampleRate()),

  194.           fMidiIn(),

  195.           fMidiOut(),

  196.           fTimeInfo()

  197.     {

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

  199. 

  200.         carla_fill(fCurMidiProgs, 0, MAX_MIDI_CHANNELS);

  201.         carla_zeroStructs(fMidiEvents, kPluginMaxMidiEvents*2);

  202.         carla_zeroStruct(fTimeInfo);

  203. 

  204.         fHost.handle      = this;

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

  206.         fHost.uiName      = nullptr;

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

  208. 

  209.         fHost.get_buffer_size        = carla_host_get_buffer_size;

  210.         fHost.get_sample_rate        = carla_host_get_sample_rate;

  211.         fHost.is_offline             = carla_host_is_offline;

  212.         fHost.get_time_info          = carla_host_get_time_info;

  213.         fHost.write_midi_event       = carla_host_write_midi_event;

  214.         fHost.ui_parameter_changed   = carla_host_ui_parameter_changed;

  215.         fHost.ui_custom_data_changed = carla_host_ui_custom_data_changed;

  216.         fHost.ui_closed              = carla_host_ui_closed;

  217.         fHost.ui_open_file           = carla_host_ui_open_file;

  218.         fHost.ui_save_file           = carla_host_ui_save_file;

  219.         fHost.dispatcher             = carla_host_dispatcher;

  220.     }

  221. 

  222.     ~CarlaPluginNative() override

  223.     {

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

  225. 

  226.         // close UI

  227.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  228.         {

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

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

  231. 

  232.             pData->transientTryCounter = 0;

  233.         }

  234. 

  235.         pData->singleMutex.lock();

  236.         pData->masterMutex.lock();

  237. 

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

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

  240. 

  241.         CARLA_ASSERT(! fIsProcessing);

  242. 

  243.         if (pData->active)

  244.         {

  245.             deactivate();

  246.             pData->active = false;

  247.         }

  248. 

  249.         if (fDescriptor != nullptr)

  250.         {

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

  252.             {

  253.                 if (fHandle != nullptr)

  254.                     fDescriptor->cleanup(fHandle);

  255.                 if (fHandle2 != nullptr)

  256.                     fDescriptor->cleanup(fHandle2);

  257.             }

  258. 

  259.             fHandle  = nullptr;

  260.             fHandle2 = nullptr;

  261.             fDescriptor = nullptr;

  262.         }

  263. 

  264.         if (fHost.resourceDir != nullptr)

  265.         {

  266.             delete[] fHost.resourceDir;

  267.             fHost.resourceDir = nullptr;

  268.         }

  269. 

  270.         if (fHost.uiName != nullptr)

  271.         {

  272.             delete[] fHost.uiName;

  273.             fHost.uiName = nullptr;

  274.         }

  275. 

  276.         clearBuffers();

  277.     }

  278. 

  279.     // -------------------------------------------------------------------

  280.     // Information (base)

  281. 

  282.     PluginType getType() const noexcept override

  283.     {

  284.         return PLUGIN_INTERNAL;

  285.     }

  286. 

  287.     PluginCategory getCategory() const noexcept override

  288.     {

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

  290. 

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

  292.     }

  293. 

  294.     // -------------------------------------------------------------------

  295.     // Information (count)

  296. 

  297.     uint32_t getMidiInCount() const noexcept override

  298.     {

  299.         return fMidiIn.count;

  300.     }

  301. 

  302.     uint32_t getMidiOutCount() const noexcept override

  303.     {

  304.         return fMidiOut.count;

  305.     }

  306. 

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

  308.     {

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

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

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

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

  313. 

  314.         // FIXME - try

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

  316.             return param->scalePointCount;

  317. 

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

  319.         return 0;

  320.     }

  321. 

  322.     // -------------------------------------------------------------------

  323.     // Information (current data)

  324. 

  325.     // nothing

  326. 

  327.     // -------------------------------------------------------------------

  328.     // Information (per-plugin data)

  329. 

  330.     uint getOptionsAvailable() const noexcept override

  331.     {

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

  333.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,     0x0);

  334. 

  335.         bool hasMidiProgs = false;

  336. 

  337.         if (fDescriptor->get_midi_program_count != nullptr)

  338.         {

  339.             try {

  340.                 hasMidiProgs = fDescriptor->get_midi_program_count(fHandle) > 0;

  341.             } catch (...) {}

  342.         }

  343. 

  344.         uint options = 0x0;

  345. 

  346.         // can't disable fixed buffers if using MIDI output

  347.         if (fMidiOut.count == 0 && (fDescriptor->hints & NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS) == 0)

  348.             options |= PLUGIN_OPTION_FIXED_BUFFERS;

  349. 

  350.         // can't disable forced stereo if enabled in the engine

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

  352.             pass();

  353.         // if inputs or outputs are just 1, then yes we can force stereo

  354.         else if (pData->audioIn.count == 1 || pData->audioOut.count == 1 || fHandle2 != nullptr)

  355.             options |= PLUGIN_OPTION_FORCE_STEREO;

  356. 

  357.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_CONTROL_CHANGES)

  358.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  359.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_CHANNEL_PRESSURE)

  360.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  361.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_NOTE_AFTERTOUCH)

  362.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  363.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_PITCHBEND)

  364.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

  365.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_ALL_SOUND_OFF)

  366.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  367. 

  368.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_PROGRAM_CHANGES)

  369.             options |= PLUGIN_OPTION_SEND_PROGRAM_CHANGES;

  370.         else if (hasMidiProgs)

  371.             options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  372. 

  373.         return options;

  374.     }

  375. 

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

  377.     {

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

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

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

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

  382. 

  383.         // FIXME - try

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

  385.     }

  386. 

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

  388.     {

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

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

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

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

  393. 

  394.         // FIXME - try

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

  396.         {

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

  398. 

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

  400.             return scalePoint->value;

  401.         }

  402. 

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

  404.         return 0.0f;

  405.     }

  406. 

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

  408.     {

  409.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  410. 

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

  412.         {

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

  414.             return;

  415.         }

  416. 

  417.         CarlaPlugin::getLabel(strBuf);

  418.     }

  419. 

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

  421.     {

  422.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  423. 

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

  425.         {

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

  427.             return;

  428.         }

  429. 

  430.         CarlaPlugin::getMaker(strBuf);

  431.     }

  432. 

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

  434.     {

  435.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  436. 

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

  438.         {

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

  440.             return;

  441.         }

  442. 

  443.         CarlaPlugin::getCopyright(strBuf);

  444.     }

  445. 

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

  447.     {

  448.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  449. 

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

  451.         {

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

  453.             return;

  454.         }

  455. 

  456.         CarlaPlugin::getRealName(strBuf);

  457.     }

  458. 

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

  460.     {

  461.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  463.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  465. 

  466.         // FIXME - try

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

  468.         {

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

  470.             {

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

  472.                 return;

  473.             }

  474. 

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

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

  477.         }

  478. 

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

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

  481.     }

  482. 

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

  484.     {

  485.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  487.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  489. 

  490.         // FIXME - try

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

  492.         {

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

  494.             {

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

  496.                 return;

  497.             }

  498. 

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

  500.         }

  501. 

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

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

  504.     }

  505. 

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

  507.     {

  508.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  510.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  512. 

  513.         // FIXME - try

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

  515.         {

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

  517. 

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

  519. 

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

  521.             {

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

  523.                 return;

  524.             }

  525. 

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

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

  528.         }

  529. 

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

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

  532.     }

  533. 

  534.     // -------------------------------------------------------------------

  535.     // Set data (state)

  536. 

  537.     void prepareForSave() override

  538.     {

  539.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  540.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  541. 

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

  543.         {

  544.             char strBuf[STR_MAX+1];

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

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

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

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

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

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

  551. 

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

  553.         }

  554. 

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

  556.             return;

  557. 

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

  559.         {

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

  561.             std::free(data);

  562.         }

  563.     }

  564. 

  565.     // -------------------------------------------------------------------

  566.     // Set data (internal stuff)

  567. 

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

  569.     {

  570.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  571.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  573. 

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

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

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

  577. 

  578.         if (fHost.uiName != nullptr)

  579.             delete[] fHost.uiName;

  580.         fHost.uiName = carla_strdup(uiName);

  581. 

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

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

  584. 

  585.         CarlaPlugin::setName(newName);

  586.     }

  587. 

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

  589.     {

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

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

  592. 

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

  594.     }

  595. 

  596.     // -------------------------------------------------------------------

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

  598. 

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

  600.     {

  601.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  603.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  605. 

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

  607. 

  608.         // FIXME - try

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

  610. 

  611.         if (fHandle2 != nullptr)

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

  613. 

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

  615.     }

  616. 

  617.     void setParameterValueRT(const uint32_t parameterId, const float value) noexcept override

  618.     {

  619.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  621.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  623. 

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

  625. 

  626.         // FIXME - try

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

  628. 

  629.         if (fHandle2 != nullptr)

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

  631. 

  632.         CarlaPlugin::setParameterValueRT(parameterId, fixedValue);

  633.     }

  634. 

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

  636.     {

  637.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  638.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

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

  641.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

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

  643. 

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

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

  646. 

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

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

  649. 

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

  651.         {

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

  653.             {

  654.                 const ScopedSingleProcessLocker spl(this, true);

  655. 

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

  657. 

  658.                 if (fHandle2 != nullptr)

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

  660.             }

  661.         }

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

  663.         {

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

  665. 

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

  667.             {

  668.                 uint8_t channel = 0;

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

  670.                 {

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

  672. 

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

  674.                     {

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

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

  677. 

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

  679. 

  680.                         if (fHandle2 != nullptr)

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

  682. 

  683.                         fCurMidiProgs[channel] = index;

  684. 

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

  686.                         {

  687.                             pData->midiprog.current = index;

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

  689.                         }

  690.                     }

  691. 

  692.                     ++channel;

  693.                 }

  694.                 CARLA_SAFE_ASSERT(channel == MAX_MIDI_CHANNELS);

  695.             }

  696.         }

  697.         else

  698.         {

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

  700.             {

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

  702. 

  703.                 if (fHandle2 != nullptr)

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

  705.             }

  706. 

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

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

  709.         }

  710. 

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

  712.     }

  713. 

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

  715.     {

  716.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  717.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  719. 

  720.         // TODO, put into check below

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

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

  723. 

  724.         if (index >= 0)

  725.         {

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

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

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

  729. 

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

  731. 

  732.             try {

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

  734.             } catch(...) {}

  735. 

  736.             if (fHandle2 != nullptr)

  737.             {

  738.                 try {

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

  740.                 } catch(...) {}

  741.             }

  742. 

  743.             fCurMidiProgs[channel] = index;

  744.         }

  745. 

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

  747.     }

  748. 

  749.     // -------------------------------------------------------------------

  750.     // Set ui stuff

  751. 

  752.     void showCustomUI(const bool yesNo) override

  753.     {

  754.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  755.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  756. 

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

  758.             return;

  759. 

  760.         fIsUiAvailable = true;

  761. 

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

  763. 

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

  765.         if (yesNo && ! fIsUiAvailable)

  766.             return;

  767. 

  768.         fIsUiVisible = yesNo;

  769. 

  770.         if (! yesNo)

  771.         {

  772.             pData->transientTryCounter = 0;

  773.             return;

  774.         }

  775. 

  776. #ifndef BUILD_BRIDGE

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

  778.             pData->tryTransient();

  779. #endif

  780. 

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

  782.         {

  783.             for (LinkedList<CustomData>::Itenerator it = pData->custom.begin2(); it.valid(); it.next())

  784.             {

  785.                 const CustomData& cData(it.getValue(kCustomDataFallback));

  786.                 CARLA_SAFE_ASSERT_CONTINUE(cData.isValid());

  787. 

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

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

  790.             }

  791.         }

  792. 

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

  794.         {

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

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

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

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

  799. 

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

  801.         }

  802. 

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

  804.         {

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

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

  807.         }

  808.     }

  809. 

  810.     void uiIdle() override

  811.     {

  812.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  813.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  814. 

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

  816.             fDescriptor->ui_idle(fHandle);

  817. 

  818.         CarlaPlugin::uiIdle();

  819.     }

  820. 

  821.     // -------------------------------------------------------------------

  822.     // Plugin state

  823. 

  824.     void reload() override

  825.     {

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

  827.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  828.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  830. 

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

  832. 

  833.         // Safely disable plugin for reload

  834.         const ScopedDisabler sd(this);

  835. 

  836.         if (pData->active)

  837.             deactivate();

  838. 

  839.         clearBuffers();

  840. 

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

  842. 

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

  844. 

  845.         bool forcedStereoIn, forcedStereoOut;

  846.         forcedStereoIn = forcedStereoOut = false;

  847. 

  848.         bool needsCtrlIn, needsCtrlOut;

  849.         needsCtrlIn = needsCtrlOut = false;

  850. 

  851.         aIns   = fDescriptor->audioIns;

  852.         aOuts  = fDescriptor->audioOuts;

  853.         mIns   = fDescriptor->midiIns;

  854.         mOuts  = fDescriptor->midiOuts;

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

  856. 

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

  858.         {

  859.             if (fHandle2 == nullptr)

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

  861. 

  862.             if (fHandle2 != nullptr)

  863.             {

  864.                 if (aIns == 1)

  865.                 {

  866.                     aIns = 2;

  867.                     forcedStereoIn = true;

  868.                 }

  869. 

  870.                 if (aOuts == 1)

  871.                 {

  872.                     aOuts = 2;

  873.                     forcedStereoOut = true;

  874.                 }

  875.             }

  876.         }

  877. 

  878.         if (aIns > 0)

  879.         {

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

  881.             fAudioInBuffers = new float*[aIns];

  882. 

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

  884.                 fAudioInBuffers[i] = nullptr;

  885.         }

  886. 

  887.         if (aOuts > 0)

  888.         {

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

  890.             fAudioOutBuffers = new float*[aOuts];

  891.             needsCtrlIn = true;

  892. 

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

  894.                 fAudioOutBuffers[i] = nullptr;

  895.         }

  896. 

  897.         if (mIns > 0)

  898.         {

  899.             fMidiIn.createNew(mIns);

  900.             needsCtrlIn = (mIns == 1);

  901.         }

  902. 

  903.         if (mOuts > 0)

  904.         {

  905.             fMidiOut.createNew(mOuts);

  906.             needsCtrlOut = (mOuts == 1);

  907.         }

  908. 

  909.         if (params > 0)

  910.         {

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

  912.         }

  913. 

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

  915.         CarlaString portName;

  916. 

  917.         // Audio Ins

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

  919.         {

  920.             portName.clear();

  921. 

  922.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  923.             {

  924.                 portName  = pData->name;

  925.                 portName += ":";

  926.             }

  927. 

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

  929.             {

  930.                 portName += "input_";

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

  932.             }

  933.             else

  934.                 portName += "input";

  935. 

  936.             portName.truncate(portNameSize);

  937. 

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

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

  940. 

  941.             if (forcedStereoIn)

  942.             {

  943.                 portName += "_2";

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

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

  946.                 break;

  947.             }

  948.         }

  949. 

  950.         // Audio Outs

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

  952.         {

  953.             portName.clear();

  954. 

  955.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  956.             {

  957.                 portName  = pData->name;

  958.                 portName += ":";

  959.             }

  960. 

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

  962.             {

  963.                 portName += "output_";

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

  965.             }

  966.             else

  967.                 portName += "output";

  968. 

  969.             portName.truncate(portNameSize);

  970. 

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

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

  973. 

  974.             if (forcedStereoOut)

  975.             {

  976.                 portName += "_2";

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

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

  979.                 break;

  980.             }

  981.         }

  982. 

  983.         // MIDI Input (only if multiple)

  984.         if (mIns > 1)

  985.         {

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

  987.             {

  988.                 portName.clear();

  989. 

  990.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  991.                 {

  992.                     portName  = pData->name;

  993.                     portName += ":";

  994.                 }

  995. 

  996.                 portName += "midi-in_";

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

  998.                 portName.truncate(portNameSize);

  999. 

  1000.                 fMidiIn.ports[j]   = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true, j);

  1001.                 fMidiIn.indexes[j] = j;

  1002.             }

  1003. 

  1004.             pData->event.portIn = fMidiIn.ports[0];

  1005.         }

  1006. 

  1007.         // MIDI Output (only if multiple)

  1008.         if (mOuts > 1)

  1009.         {

  1010.             for (j=0; j < mOuts; ++j)

  1011.             {

  1012.                 portName.clear();

  1013. 

  1014.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1015.                 {

  1016.                     portName  = pData->name;

  1017.                     portName += ":";

  1018.                 }

  1019. 

  1020.                 portName += "midi-out_";

  1021.                 portName += CarlaString(j+1);

  1022.                 portName.truncate(portNameSize);

  1023. 

  1024.                 fMidiOut.ports[j]   = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false, j);

  1025.                 fMidiOut.indexes[j] = j;

  1026.             }

  1027. 

  1028.             pData->event.portOut = fMidiOut.ports[0];

  1029.         }

  1030. 

  1031.         for (j=0; j < params; ++j)

  1032.         {

  1033.             const NativeParameter* const paramInfo(fDescriptor->get_parameter_info(fHandle, j));

  1034. 

  1035.             CARLA_SAFE_ASSERT_CONTINUE(paramInfo != nullptr);

  1036. 

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

  1038.             pData->param.data[j].index  = static_cast<int32_t>(j);

  1039.             pData->param.data[j].rindex = static_cast<int32_t>(j);

  1040. 

  1041.             float min, max, def, step, stepSmall, stepLarge;

  1042. 

  1043.             // min value

  1044.             min = paramInfo->ranges.min;

  1045. 

  1046.             // max value

  1047.             max = paramInfo->ranges.max;

  1048. 

  1049.             if (min > max)

  1050.                 max = min;

  1051.             else if (max < min)

  1052.                 min = max;

  1053. 

  1054.             if (carla_isEqual(min, max))

  1055.             {

  1056.                 carla_stderr2("WARNING - Broken plugin parameter '%s': max == min", paramInfo->name);

  1057.                 max = min + 0.1f;

  1058.             }

  1059. 

  1060.             // default value

  1061.             def = paramInfo->ranges.def;

  1062. 

  1063.             if (def < min)

  1064.                 def = min;

  1065.             else if (def > max)

  1066.                 def = max;

  1067. 

  1068.             if (paramInfo->hints & NATIVE_PARAMETER_USES_SAMPLE_RATE)

  1069.             {

  1070.                 min *= sampleRate;

  1071.                 max *= sampleRate;

  1072.                 def *= sampleRate;

  1073.                 pData->param.data[j].hints |= PARAMETER_USES_SAMPLERATE;

  1074.             }

  1075. 

  1076.             if (paramInfo->hints & NATIVE_PARAMETER_IS_BOOLEAN)

  1077.             {

  1078.                 step = max - min;

  1079.                 stepSmall = step;

  1080.                 stepLarge = step;

  1081.                 pData->param.data[j].hints |= PARAMETER_IS_BOOLEAN;

  1082.             }

  1083.             else if (paramInfo->hints & NATIVE_PARAMETER_IS_INTEGER)

  1084.             {

  1085.                 step = 1.0f;

  1086.                 stepSmall = 1.0f;

  1087.                 stepLarge = 10.0f;

  1088.                 pData->param.data[j].hints |= PARAMETER_IS_INTEGER;

  1089.             }

  1090.             else

  1091.             {

  1092.                 float range = max - min;

  1093.                 step = range/100.0f;

  1094.                 stepSmall = range/1000.0f;

  1095.                 stepLarge = range/10.0f;

  1096.             }

  1097. 

  1098.             if (paramInfo->hints & NATIVE_PARAMETER_IS_OUTPUT)

  1099.             {

  1100.                 pData->param.data[j].type = PARAMETER_OUTPUT;

  1101.                 needsCtrlOut = true;

  1102.             }

  1103.             else

  1104.             {

  1105.                 pData->param.data[j].type = PARAMETER_INPUT;

  1106.                 needsCtrlIn = true;

  1107.             }

  1108. 

  1109.             // extra parameter hints

  1110.             if (paramInfo->hints & NATIVE_PARAMETER_IS_ENABLED)

  1111.                 pData->param.data[j].hints |= PARAMETER_IS_ENABLED;

  1112. 

  1113.             if (paramInfo->hints & NATIVE_PARAMETER_IS_AUTOMABLE)

  1114.                 pData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE;

  1115. 

  1116.             if (paramInfo->hints & NATIVE_PARAMETER_IS_LOGARITHMIC)

  1117.                 pData->param.data[j].hints |= PARAMETER_IS_LOGARITHMIC;

  1118. 

  1119.             if (paramInfo->hints & NATIVE_PARAMETER_USES_SCALEPOINTS)

  1120.                 pData->param.data[j].hints |= PARAMETER_USES_SCALEPOINTS;

  1121. 

  1122.             pData->param.ranges[j].min = min;

  1123.             pData->param.ranges[j].max = max;

  1124.             pData->param.ranges[j].def = def;

  1125.             pData->param.ranges[j].step = step;

  1126.             pData->param.ranges[j].stepSmall = stepSmall;

  1127.             pData->param.ranges[j].stepLarge = stepLarge;

  1128.         }

  1129. 

  1130.         if (needsCtrlIn && mIns <= 1)

  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-in";

  1141.             portName.truncate(portNameSize);

  1142. 

  1143.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true, 0);

  1144.         }

  1145. 

  1146.         if (needsCtrlOut && mOuts <= 1)

  1147.         {

  1148.             portName.clear();

  1149. 

  1150.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1151.             {

  1152.                 portName  = pData->name;

  1153.                 portName += ":";

  1154.             }

  1155. 

  1156.             portName += "events-out";

  1157.             portName.truncate(portNameSize);

  1158. 

  1159.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false, 0);

  1160.         }

  1161. 

  1162.         if (forcedStereoIn || forcedStereoOut)

  1163.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1164.         else

  1165.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  1166. 

  1167.         // plugin hints

  1168.         pData->hints = 0x0;

  1169. 

  1170.         if (aOuts > 0 && (aIns == aOuts || aIns == 1))

  1171.             pData->hints |= PLUGIN_CAN_DRYWET;

  1172. 

  1173.         if (aOuts > 0)

  1174.             pData->hints |= PLUGIN_CAN_VOLUME;

  1175. 

  1176.         if (aOuts >= 2 && aOuts % 2 == 0)

  1177.             pData->hints |= PLUGIN_CAN_BALANCE;

  1178. 

  1179.         // native plugin hints

  1180.         if (fDescriptor->hints & NATIVE_PLUGIN_IS_RTSAFE)

  1181.             pData->hints |= PLUGIN_IS_RTSAFE;

  1182.         if (fDescriptor->hints & NATIVE_PLUGIN_IS_SYNTH)

  1183.             pData->hints |= PLUGIN_IS_SYNTH;

  1184.         if (fDescriptor->hints & NATIVE_PLUGIN_HAS_UI)

  1185.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  1186.         if (fDescriptor->hints & NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS)

  1187.             pData->hints |= PLUGIN_NEEDS_FIXED_BUFFERS;

  1188.         if (fDescriptor->hints & NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD)

  1189.             pData->hints |= PLUGIN_NEEDS_UI_MAIN_THREAD;

  1190.         if (fDescriptor->hints & NATIVE_PLUGIN_USES_MULTI_PROGS)

  1191.             pData->hints |= PLUGIN_USES_MULTI_PROGS;

  1192. 

  1193.         // extra plugin hints

  1194.         pData->extraHints = 0x0;

  1195. 

  1196.         if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0) && mIns <= 1 && mOuts <= 1)

  1197.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1198. 

  1199.         bufferSizeChanged(pData->engine->getBufferSize());

  1200.         reloadPrograms(true);

  1201. 

  1202.         if (pData->active)

  1203.             activate();

  1204. 

  1205.         carla_debug("CarlaPluginNative::reload() - end");

  1206.     }

  1207. 

  1208.     void reloadPrograms(const bool doInit) override

  1209.     {

  1210.         carla_debug("CarlaPluginNative::reloadPrograms(%s)", bool2str(doInit));

  1211.         uint32_t i, oldCount  = pData->midiprog.count;

  1212.         const int32_t current = pData->midiprog.current;

  1213. 

  1214.         // Delete old programs

  1215.         pData->midiprog.clear();

  1216. 

  1217.         // Query new programs

  1218.         uint32_t count = 0;

  1219.         if (fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_info != nullptr && fDescriptor->set_midi_program != nullptr)

  1220.             count = fDescriptor->get_midi_program_count(fHandle);

  1221. 

  1222.         if (count > 0)

  1223.         {

  1224.             pData->midiprog.createNew(count);

  1225. 

  1226.             // Update data

  1227.             for (i=0; i < count; ++i)

  1228.             {

  1229.                 const NativeMidiProgram* const mpDesc(fDescriptor->get_midi_program_info(fHandle, i));

  1230.                 CARLA_SAFE_ASSERT_CONTINUE(mpDesc != nullptr);

  1231. 

  1232.                 pData->midiprog.data[i].bank    = mpDesc->bank;

  1233.                 pData->midiprog.data[i].program = mpDesc->program;

  1234.                 pData->midiprog.data[i].name    = carla_strdup(mpDesc->name);

  1235.             }

  1236.         }

  1237. 

  1238. #if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)

  1239.         // Update OSC Names

  1240.         if (pData->engine->isOscControlRegistered() && pData->id < pData->engine->getCurrentPluginCount())

  1241.         {

  1242.             pData->engine->oscSend_control_set_midi_program_count(pData->id, count);

  1243. 

  1244.             for (i=0; i < count; ++i)

  1245.                 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);

  1246.         }

  1247. #endif

  1248. 

  1249.         if (doInit)

  1250.         {

  1251.             if (count > 0)

  1252.                 setMidiProgram(0, false, false, false);

  1253.         }

  1254.         else

  1255.         {

  1256.             // Check if current program is invalid

  1257.             bool programChanged = false;

  1258. 

  1259.             if (count == oldCount+1)

  1260.             {

  1261.                 // one midi program added, probably created by user

  1262.                 pData->midiprog.current = static_cast<int32_t>(oldCount);

  1263.                 programChanged = true;

  1264.             }

  1265.             else if (current < 0 && count > 0)

  1266.             {

  1267.                 // programs exist now, but not before

  1268.                 pData->midiprog.current = 0;

  1269.                 programChanged = true;

  1270.             }

  1271.             else if (current >= 0 && count == 0)

  1272.             {

  1273.                 // programs existed before, but not anymore

  1274.                 pData->midiprog.current = -1;

  1275.                 programChanged = true;

  1276.             }

  1277.             else if (current >= static_cast<int32_t>(count))

  1278.             {

  1279.                 // current midi program > count

  1280.                 pData->midiprog.current = 0;

  1281.                 programChanged = true;

  1282.             }

  1283.             else

  1284.             {

  1285.                 // no change

  1286.                 pData->midiprog.current = current;

  1287.             }

  1288. 

  1289.             if (programChanged)

  1290.                 setMidiProgram(pData->midiprog.current, true, true, true);

  1291. 

  1292.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1293.         }

  1294.     }

  1295. 

  1296.     // -------------------------------------------------------------------

  1297.     // Plugin processing

  1298. 

  1299.     void activate() noexcept override

  1300.     {

  1301.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1302.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1303. 

  1304.         if (fDescriptor->activate != nullptr)

  1305.         {

  1306.             try {

  1307.                 fDescriptor->activate(fHandle);

  1308.             } catch(...) {}

  1309. 

  1310.             if (fHandle2 != nullptr)

  1311.             {

  1312.                 try {

  1313.                     fDescriptor->activate(fHandle2);

  1314.                 } catch(...) {}

  1315.             }

  1316.         }

  1317.     }

  1318. 

  1319.     void deactivate() noexcept override

  1320.     {

  1321.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1322.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1323. 

  1324.         if (fDescriptor->deactivate != nullptr)

  1325.         {

  1326.             try {

  1327.                 fDescriptor->deactivate(fHandle);

  1328.             } catch(...) {}

  1329. 

  1330.             if (fHandle2 != nullptr)

  1331.             {

  1332.                 try {

  1333.                     fDescriptor->deactivate(fHandle2);

  1334.                 } catch(...) {}

  1335.             }

  1336.         }

  1337.     }

  1338. 

  1339.     void process(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames) override

  1340.     {

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

  1342.         // Check if active

  1343. 

  1344.         if (! pData->active)

  1345.         {

  1346.             // disable any output sound

  1347.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1348.                 carla_zeroFloats(audioOut[i], frames);

  1349.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1350.                 carla_zeroFloats(cvOut[i], frames);

  1351.             return;

  1352.         }

  1353. 

  1354.         fMidiEventCount = 0;

  1355.         carla_zeroStructs(fMidiEvents, kPluginMaxMidiEvents*2);

  1356. 

  1357.         // --------------------------------------------------------------------------------------------------------

  1358.         // Check if needs reset

  1359. 

  1360.         if (pData->needsReset)

  1361.         {

  1362.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1363.             {

  1364.                 fMidiEventCount = MAX_MIDI_CHANNELS*2;

  1365. 

  1366.                 for (uint8_t k=0, i=MAX_MIDI_CHANNELS; k < MAX_MIDI_CHANNELS; ++k)

  1367.                 {

  1368.                     fMidiEvents[k].data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (k & MIDI_CHANNEL_BIT));

  1369.                     fMidiEvents[k].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1370.                     fMidiEvents[k].data[2] = 0;

  1371.                     fMidiEvents[k].size    = 3;

  1372. 

  1373.                     fMidiEvents[k+i].data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (k & MIDI_CHANNEL_BIT));

  1374.                     fMidiEvents[k+i].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1375.                     fMidiEvents[k+i].data[2] = 0;

  1376.                     fMidiEvents[k+i].size    = 3;

  1377.                 }

  1378.             }

  1379.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1380.             {

  1381.                 fMidiEventCount = MAX_MIDI_NOTE;

  1382. 

  1383.                 for (uint8_t k=0; k < MAX_MIDI_NOTE; ++k)

  1384.                 {

  1385.                     fMidiEvents[k].data[0] = uint8_t(MIDI_STATUS_NOTE_OFF | (pData->ctrlChannel & MIDI_CHANNEL_BIT));

  1386.                     fMidiEvents[k].data[1] = k;

  1387.                     fMidiEvents[k].data[2] = 0;

  1388.                     fMidiEvents[k].size    = 3;

  1389.                 }

  1390.             }

  1391. 

  1392.             pData->needsReset = false;

  1393.         }

  1394. 

  1395.         // --------------------------------------------------------------------------------------------------------

  1396.         // Set TimeInfo

  1397. 

  1398.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1399. 

  1400.         fTimeInfo.playing = timeInfo.playing;

  1401.         fTimeInfo.frame   = timeInfo.frame;

  1402.         fTimeInfo.usecs   = timeInfo.usecs;

  1403. 

  1404.         if (timeInfo.bbt.valid)

  1405.         {

  1406.             fTimeInfo.bbt.valid = true;

  1407. 

  1408.             fTimeInfo.bbt.bar  = timeInfo.bbt.bar;

  1409.             fTimeInfo.bbt.beat = timeInfo.bbt.beat;

  1410.             fTimeInfo.bbt.tick = timeInfo.bbt.tick;

  1411.             fTimeInfo.bbt.barStartTick = timeInfo.bbt.barStartTick;

  1412. 

  1413.             fTimeInfo.bbt.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1414.             fTimeInfo.bbt.beatType    = timeInfo.bbt.beatType;

  1415. 

  1416.             fTimeInfo.bbt.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1417.             fTimeInfo.bbt.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1418.         }

  1419.         else

  1420.         {

  1421.             fTimeInfo.bbt.valid = false;

  1422.         }

  1423. 

  1424.         // --------------------------------------------------------------------------------------------------------

  1425.         // Event Input and Processing

  1426. 

  1427.         if (pData->event.portIn != nullptr)

  1428.         {

  1429.             // ----------------------------------------------------------------------------------------------------

  1430.             // MIDI Input (External)

  1431. 

  1432.             if (pData->extNotes.mutex.tryLock())

  1433.             {

  1434.                 ExternalMidiNote note = { 0, 0, 0 };

  1435. 

  1436.                 for (; fMidiEventCount < kPluginMaxMidiEvents*2 && ! pData->extNotes.data.isEmpty();)

  1437.                 {

  1438.                     note = pData->extNotes.data.getFirst(note, true);

  1439. 

  1440.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1441. 

  1442.                     NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1443. 

  1444.                     nativeEvent.data[0] = uint8_t((note.velo > 0 ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF) | (note.channel & MIDI_CHANNEL_BIT));

  1445.                     nativeEvent.data[1] = note.note;

  1446.                     nativeEvent.data[2] = note.velo;

  1447.                     nativeEvent.size    = 3;

  1448.                 }

  1449. 

  1450.                 pData->extNotes.mutex.unlock();

  1451. 

  1452.             } // End of MIDI Input (External)

  1453. 

  1454.             // ----------------------------------------------------------------------------------------------------

  1455.             // Event Input (System)

  1456. 

  1457. #ifndef BUILD_BRIDGE

  1458.             bool allNotesOffSent = false;

  1459. #endif

  1460.             bool sampleAccurate  = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1461. 

  1462.             uint32_t startTime  = 0;

  1463.             uint32_t timeOffset = 0;

  1464.             uint32_t nextBankId;

  1465. 

  1466.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1467.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1468.             else

  1469.                 nextBankId = 0;

  1470. 

  1471.             for (uint32_t m=0, max=jmax(1U, fMidiIn.count); m < max; ++m)

  1472.             {

  1473.                 CarlaEngineEventPort* const eventPort(m == 0 ? pData->event.portIn : fMidiIn.ports[m]);

  1474. 

  1475.             for (uint32_t i=0, numEvents=eventPort->getEventCount(); i < numEvents; ++i)

  1476.             {

  1477.                 const EngineEvent& event(eventPort->getEvent(i));

  1478. 

  1479.                 if (event.time >= frames)

  1480.                     continue;

  1481. 

  1482.                 CARLA_ASSERT_INT2(event.time >= timeOffset, event.time, timeOffset);

  1483. 

  1484.                 if (event.time > timeOffset && sampleAccurate)

  1485.                 {

  1486.                     if (processSingle(audioIn, audioOut, cvIn, cvOut, event.time - timeOffset, timeOffset))

  1487.                     {

  1488.                         startTime  = 0;

  1489.                         timeOffset = event.time;

  1490. 

  1491.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1492.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1493.                         else

  1494.                             nextBankId = 0;

  1495. 

  1496.                         if (fMidiEventCount > 0)

  1497.                         {

  1498.                             carla_zeroStructs(fMidiEvents, fMidiEventCount);

  1499.                             fMidiEventCount = 0;

  1500.                         }

  1501.                     }

  1502.                     else

  1503.                         startTime += timeOffset;

  1504.                 }

  1505. 

  1506.                 // Control change

  1507.                 switch (event.type)

  1508.                 {

  1509.                 case kEngineEventTypeNull:

  1510.                     break;

  1511. 

  1512.                 case kEngineEventTypeControl: {

  1513.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1514. 

  1515.                     switch (ctrlEvent.type)

  1516.                     {

  1517.                     case kEngineControlEventTypeNull:

  1518.                         break;

  1519. 

  1520.                     case kEngineControlEventTypeParameter: {

  1521. #ifndef BUILD_BRIDGE

  1522.                         // Control backend stuff

  1523.                         if (event.channel == pData->ctrlChannel)

  1524.                         {

  1525.                             float value;

  1526. 

  1527.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) > 0)

  1528.                             {

  1529.                                 value = ctrlEvent.value;

  1530.                                 setDryWetRT(value);

  1531.                             }

  1532. 

  1533.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) > 0)

  1534.                             {

  1535.                                 value = ctrlEvent.value*127.0f/100.0f;

  1536.                                 setVolumeRT(value);

  1537.                             }

  1538. 

  1539.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) > 0)

  1540.                             {

  1541.                                 float left, right;

  1542.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1543. 

  1544.                                 if (value < 0.0f)

  1545.                                 {

  1546.                                     left  = -1.0f;

  1547.                                     right = (value*2.0f)+1.0f;

  1548.                                 }

  1549.                                 else if (value > 0.0f)

  1550.                                 {

  1551.                                     left  = (value*2.0f)-1.0f;

  1552.                                     right = 1.0f;

  1553.                                 }

  1554.                                 else

  1555.                                 {

  1556.                                     left  = -1.0f;

  1557.                                     right = 1.0f;

  1558.                                 }

  1559. 

  1560.                                 setBalanceLeftRT(left);

  1561.                                 setBalanceRightRT(right);

  1562.                             }

  1563.                         }

  1564. #endif

  1565.                         // Control plugin parameters

  1566.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1567.                         {

  1568.                             if (pData->param.data[k].midiChannel != event.channel)

  1569.                                 continue;

  1570.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1571.                                 continue;

  1572.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1573.                                 continue;

  1574.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1575.                                 continue;

  1576. 

  1577.                             float value;

  1578. 

  1579.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1580.                             {

  1581.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1582.                             }

  1583.                             else

  1584.                             {

  1585.                                 if (pData->param.data[k].hints & PARAMETER_IS_LOGARITHMIC)

  1586.                                     value = pData->param.ranges[k].getUnnormalizedLogValue(ctrlEvent.value);

  1587.                                 else

  1588.                                     value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1589. 

  1590.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1591.                                     value = std::rint(value);

  1592.                             }

  1593. 

  1594.                             setParameterValueRT(k, value);

  1595.                         }

  1596. 

  1597.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param < MAX_MIDI_CONTROL)

  1598.                         {

  1599.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1600.                                 continue;

  1601. 

  1602.                             NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1603.                             carla_zeroStruct(nativeEvent);

  1604. 

  1605.                             nativeEvent.time    = sampleAccurate ? startTime : event.time;

  1606.                             nativeEvent.data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (event.channel & MIDI_CHANNEL_BIT));

  1607.                             nativeEvent.data[1] = uint8_t(ctrlEvent.param);

  1608.                             nativeEvent.data[2] = uint8_t(ctrlEvent.value*127.0f);

  1609.                             nativeEvent.size    = 3;

  1610.                         }

  1611. 

  1612.                         break;

  1613.                     } // case kEngineControlEventTypeParameter

  1614. 

  1615.                     case kEngineControlEventTypeMidiBank:

  1616.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1617.                         {

  1618.                             if (event.channel == pData->ctrlChannel)

  1619.                                 nextBankId = ctrlEvent.param;

  1620.                         }

  1621.                         else if (pData->options & PLUGIN_OPTION_SEND_PROGRAM_CHANGES)

  1622.                         {

  1623.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1624.                                 continue;

  1625. 

  1626.                             NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1627.                             carla_zeroStruct(nativeEvent);

  1628. 

  1629.                             nativeEvent.time    = sampleAccurate ? startTime : event.time;

  1630.                             nativeEvent.data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (event.channel & MIDI_CHANNEL_BIT));

  1631.                             nativeEvent.data[1] = MIDI_CONTROL_BANK_SELECT;

  1632.                             nativeEvent.data[2] = uint8_t(ctrlEvent.param);

  1633.                             nativeEvent.size    = 3;

  1634.                         }

  1635.                         break;

  1636. 

  1637.                     case kEngineControlEventTypeMidiProgram:

  1638.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1639.                         {

  1640.                             if (event.channel < MAX_MIDI_CHANNELS)

  1641.                             {

  1642.                                 const uint32_t nextProgramId(ctrlEvent.param);

  1643. 

  1644.                                 for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1645.                                 {

  1646.                                     if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1647.                                     {

  1648.                                         fDescriptor->set_midi_program(fHandle, event.channel, nextBankId, nextProgramId);

  1649. 

  1650.                                         if (fHandle2 != nullptr)

  1651.                                             fDescriptor->set_midi_program(fHandle2, event.channel, nextBankId, nextProgramId);

  1652. 

  1653.                                         fCurMidiProgs[event.channel] = static_cast<int32_t>(k);

  1654. 

  1655.                                         if (event.channel == pData->ctrlChannel)

  1656.                                             pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, static_cast<int32_t>(k), 0, 0.0f);

  1657. 

  1658.                                         break;

  1659.                                     }

  1660.                                 }

  1661.                             }

  1662.                         }

  1663.                         else if (pData->options & PLUGIN_OPTION_SEND_PROGRAM_CHANGES)

  1664.                         {

  1665.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1666.                                 continue;

  1667. 

  1668.                             NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1669.                             carla_zeroStruct(nativeEvent);

  1670. 

  1671.                             nativeEvent.time    = sampleAccurate ? startTime : event.time;

  1672.                             nativeEvent.data[0] = uint8_t(MIDI_STATUS_PROGRAM_CHANGE | (event.channel & MIDI_CHANNEL_BIT));

  1673.                             nativeEvent.data[1] = uint8_t(ctrlEvent.param);

  1674.                             nativeEvent.size    = 2;

  1675.                         }

  1676.                         break;

  1677. 

  1678.                     case kEngineControlEventTypeAllSoundOff:

  1679.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1680.                         {

  1681.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1682.                                 continue;

  1683. 

  1684.                             NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1685.                             carla_zeroStruct(nativeEvent);

  1686. 

  1687.                             nativeEvent.time    = sampleAccurate ? startTime : event.time;

  1688.                             nativeEvent.data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (event.channel & MIDI_CHANNEL_BIT));

  1689.                             nativeEvent.data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1690.                             nativeEvent.data[2] = 0;

  1691.                             nativeEvent.size    = 3;

  1692.                         }

  1693.                         break;

  1694. 

  1695.                     case kEngineControlEventTypeAllNotesOff:

  1696.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1697.                         {

  1698. #ifndef BUILD_BRIDGE

  1699.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1700.                             {

  1701.                                 allNotesOffSent = true;

  1702.                                 sendMidiAllNotesOffToCallback();

  1703.                             }

  1704. #endif

  1705. 

  1706.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1707.                                 continue;

  1708. 

  1709.                             NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1710.                             carla_zeroStruct(nativeEvent);

  1711. 

  1712.                             nativeEvent.time    = sampleAccurate ? startTime : event.time;

  1713.                             nativeEvent.data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (event.channel & MIDI_CHANNEL_BIT));

  1714.                             nativeEvent.data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1715.                             nativeEvent.data[2] = 0;

  1716.                             nativeEvent.size    = 3;

  1717.                         }

  1718.                         break;

  1719.                     }

  1720.                     break;

  1721.                 }

  1722. 

  1723.                 case kEngineEventTypeMidi: {

  1724.                     if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1725.                         continue;

  1726. 

  1727.                     const EngineMidiEvent& midiEvent(event.midi);

  1728. 

  1729.                     if (midiEvent.size > 4)

  1730.                         continue;

  1731. #ifdef CARLA_PROPER_CPP11_SUPPORT

  1732.                     static_assert(4 <= EngineMidiEvent::kDataSize, "Incorrect data");

  1733. #endif

  1734. 

  1735.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1736. 

  1737.                     if (status == MIDI_STATUS_CHANNEL_PRESSURE && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1738.                         continue;

  1739.                     if (status == MIDI_STATUS_CONTROL_CHANGE && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1740.                         continue;

  1741.                     if (status == MIDI_STATUS_POLYPHONIC_AFTERTOUCH && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1742.                         continue;

  1743.                     if (status == MIDI_STATUS_PITCH_WHEEL_CONTROL && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1744.                         continue;

  1745. 

  1746.                     // Fix bad note-off

  1747.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1748.                         status = MIDI_STATUS_NOTE_OFF;

  1749. 

  1750.                     NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1751.                     carla_zeroStruct(nativeEvent);

  1752. 

  1753.                     nativeEvent.port = midiEvent.port;

  1754.                     nativeEvent.time = sampleAccurate ? startTime : event.time;

  1755.                     nativeEvent.size = midiEvent.size;

  1756. 

  1757.                     nativeEvent.data[0] = uint8_t(status | (event.channel & MIDI_CHANNEL_BIT));

  1758.                     nativeEvent.data[1] = midiEvent.size >= 2 ? midiEvent.data[1] : 0;

  1759.                     nativeEvent.data[2] = midiEvent.size >= 3 ? midiEvent.data[2] : 0;

  1760.                     nativeEvent.data[3] = midiEvent.size == 4 ? midiEvent.data[3] : 0;

  1761. 

  1762.                     if (status == MIDI_STATUS_NOTE_ON)

  1763.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, midiEvent.data[1], midiEvent.data[2]);

  1764.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1765.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, midiEvent.data[1], 0.0f);

  1766.                 } break;

  1767.                 } // switch (event.type)

  1768.             }

  1769. 

  1770.             pData->postRtEvents.trySplice();

  1771. 

  1772.             if (frames > timeOffset)

  1773.                 processSingle(audioIn, audioOut, cvIn, cvOut, frames - timeOffset, timeOffset);

  1774. 

  1775.             } // eventPort

  1776. 

  1777.         } // End of Event Input and Processing

  1778. 

  1779.         // --------------------------------------------------------------------------------------------------------

  1780.         // Plugin processing (no events)

  1781. 

  1782.         else

  1783.         {

  1784.             processSingle(audioIn, audioOut, cvIn, cvOut, frames, 0);

  1785. 

  1786.         } // End of Plugin processing (no events)

  1787. 

  1788.         // --------------------------------------------------------------------------------------------------------

  1789.         // Control and MIDI Output

  1790. 

  1791.         if (pData->event.portOut != nullptr)

  1792.         {

  1793. #ifndef BUILD_BRIDGE

  1794.             float value, curValue;

  1795. 

  1796.             for (uint32_t k=0; k < pData->param.count; ++k)

  1797.             {

  1798.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1799.                     continue;

  1800. 

  1801.                 curValue = fDescriptor->get_parameter_value(fHandle, k);

  1802.                 pData->param.ranges[k].fixValue(curValue);

  1803. 

  1804.                 if (pData->param.data[k].midiCC > 0)

  1805.                 {

  1806.                     value = pData->param.ranges[k].getNormalizedValue(curValue);

  1807.                     pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), value);

  1808.                 }

  1809.             }

  1810. #endif

  1811. 

  1812.             // reverse lookup MIDI events

  1813.             for (uint32_t k = (kPluginMaxMidiEvents*2)-1; k >= fMidiEventCount; --k)

  1814.             {

  1815.                 if (fMidiEvents[k].data[0] == 0)

  1816.                     break;

  1817. 

  1818.                 const uint8_t channel = uint8_t(MIDI_GET_CHANNEL_FROM_DATA(fMidiEvents[k].data));

  1819.                 const uint8_t port    = fMidiEvents[k].port;

  1820. 

  1821.                 if (fMidiOut.count > 1 && port < fMidiOut.count)

  1822.                     fMidiOut.ports[port]->writeMidiEvent(fMidiEvents[k].time, channel, fMidiEvents[k].size, fMidiEvents[k].data);

  1823.                 else

  1824.                     pData->event.portOut->writeMidiEvent(fMidiEvents[k].time, channel, fMidiEvents[k].size, fMidiEvents[k].data);

  1825.             }

  1826. 

  1827.         } // End of Control and MIDI Output

  1828.     }

  1829. 

  1830.     bool processSingle(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames, const uint32_t timeOffset)

  1831.     {

  1832.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1833. 

  1834.         if (pData->audioIn.count > 0)

  1835.         {

  1836.             CARLA_SAFE_ASSERT_RETURN(audioIn != nullptr, false);

  1837.         }

  1838.         if (pData->audioOut.count > 0)

  1839.         {

  1840.             CARLA_SAFE_ASSERT_RETURN(audioOut != nullptr, false);

  1841.         }

  1842.         if (pData->cvIn.count > 0)

  1843.         {

  1844.             CARLA_SAFE_ASSERT_RETURN(cvIn != nullptr, false);

  1845.         }

  1846.         if (pData->cvOut.count > 0)

  1847.         {

  1848.             CARLA_SAFE_ASSERT_RETURN(cvOut != nullptr, false);

  1849.         }

  1850. 

  1851.         // --------------------------------------------------------------------------------------------------------

  1852.         // Try lock, silence otherwise

  1853. 

  1854.         if (fIsOffline)

  1855.         {

  1856.             pData->singleMutex.lock();

  1857.         }

  1858.         else if (! pData->singleMutex.tryLock())

  1859.         {

  1860.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1861.             {

  1862.                 for (uint32_t k=0; k < frames; ++k)

  1863.                     audioOut[i][k+timeOffset] = 0.0f;

  1864.             }

  1865.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1866.             {

  1867.                 for (uint32_t k=0; k < frames; ++k)

  1868.                     cvOut[i][k+timeOffset] = 0.0f;

  1869.             }

  1870. 

  1871.             return false;

  1872.         }

  1873. 

  1874.         // --------------------------------------------------------------------------------------------------------

  1875.         // Set audio buffers

  1876. 

  1877.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1878.             carla_copyFloats(fAudioInBuffers[i], audioIn[i]+timeOffset, frames);

  1879. 

  1880.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1881.             carla_zeroFloats(fAudioOutBuffers[i], frames);

  1882. 

  1883. #if 0

  1884.         // --------------------------------------------------------------------------------------------------------

  1885.         // Set CV buffers

  1886. 

  1887.         for (uint32_t i=0; i < pData->cvIn.count; ++i)

  1888.             carla_copyFloats(fCvInBuffers[i], cvIn[i]+timeOffset, frames);

  1889. 

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

  1891.             carla_zeroFloats(fCvOutBuffers[i], frames);

  1892. #endif

  1893. 

  1894.         // --------------------------------------------------------------------------------------------------------

  1895.         // Run plugin

  1896. 

  1897.         fIsProcessing = true;

  1898. 

  1899.         if (fHandle2 == nullptr)

  1900.         {

  1901.             fDescriptor->process(fHandle, fAudioInBuffers, fAudioOutBuffers, frames, fMidiEvents, fMidiEventCount);

  1902.         }

  1903.         else

  1904.         {

  1905.             fDescriptor->process(fHandle,

  1906.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[0] : nullptr,

  1907.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[0] : nullptr,

  1908.                                  frames, fMidiEvents, fMidiEventCount);

  1909. 

  1910.             fDescriptor->process(fHandle2,

  1911.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[1] : nullptr,

  1912.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[1] : nullptr,

  1913.                                  frames, fMidiEvents, fMidiEventCount);

  1914.         }

  1915. 

  1916.         fIsProcessing = false;

  1917.         fTimeInfo.frame += frames;

  1918. 

  1919. #ifndef BUILD_BRIDGE

  1920.         // --------------------------------------------------------------------------------------------------------

  1921.         // Post-processing (dry/wet, volume and balance)

  1922. 

  1923.         {

  1924.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && carla_isNotEqual(pData->postProc.dryWet, 1.0f);

  1925.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_isEqual(pData->postProc.balanceLeft, -1.0f) && carla_isEqual(pData->postProc.balanceRight, 1.0f));

  1926. 

  1927.             bool isPair;

  1928.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1929. 

  1930.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1931.             {

  1932.                 // Dry/Wet

  1933.                 if (doDryWet)

  1934.                 {

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

  1936.                     {

  1937.                         bufValue = fAudioInBuffers[(pData->audioIn.count == 1) ? 0 : i][k];

  1938.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1939.                     }

  1940.                 }

  1941. 

  1942.                 // Balance

  1943.                 if (doBalance)

  1944.                 {

  1945.                     isPair = (i % 2 == 0);

  1946. 

  1947.                     if (isPair)

  1948.                     {

  1949.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1950.                         carla_copyFloats(oldBufLeft, fAudioOutBuffers[i], frames);

  1951.                     }

  1952. 

  1953.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1954.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1955. 

  1956.                     for (uint32_t k=0; k < frames; ++k)

  1957.                     {

  1958.                         if (isPair)

  1959.                         {

  1960.                             // left

  1961.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1962.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1963.                         }

  1964.                         else

  1965.                         {

  1966.                             // right

  1967.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1968.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1969.                         }

  1970.                     }

  1971.                 }

  1972. 

  1973.                 // Volume (and buffer copy)

  1974.                 {

  1975.                     for (uint32_t k=0; k < frames; ++k)

  1976.                         audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1977.                 }

  1978.             }

  1979. 

  1980.         } // End of Post-processing

  1981. #else

  1982.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1983.         {

  1984.             for (uint32_t k=0; k < frames; ++k)

  1985.                 audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1986.         }

  1987. #endif

  1988. 

  1989. #if 0

  1990.         for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1991.         {

  1992.             for (uint32_t k=0; k < frames; ++k)

  1993.                 cvOut[i][k+timeOffset] = fCvOutBuffers[i][k];

  1994.         }

  1995. #endif

  1996. 

  1997.         // --------------------------------------------------------------------------------------------------------

  1998. 

  1999.         pData->singleMutex.unlock();

  2000.         return true;

  2001.     }

  2002. 

  2003.     void bufferSizeChanged(const uint32_t newBufferSize) override

  2004.     {

  2005.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  2006.         carla_debug("CarlaPluginNative::bufferSizeChanged(%i)", newBufferSize);

  2007. 

  2008.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  2009.         {

  2010.             if (fAudioInBuffers[i] != nullptr)

  2011.                 delete[] fAudioInBuffers[i];

  2012.             fAudioInBuffers[i] = new float[newBufferSize];

  2013.         }

  2014. 

  2015.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  2016.         {

  2017.             if (fAudioOutBuffers[i] != nullptr)

  2018.                 delete[] fAudioOutBuffers[i];

  2019.             fAudioOutBuffers[i] = new float[newBufferSize];

  2020.         }

  2021. 

  2022.         if (fCurBufferSize == newBufferSize)

  2023.             return;

  2024. 

  2025.         fCurBufferSize = newBufferSize;

  2026. 

  2027.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  2028.         {

  2029.             fDescriptor->dispatcher(fHandle, NATIVE_PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, static_cast<intptr_t>(newBufferSize), nullptr, 0.0f);

  2030. 

  2031.             if (fHandle2 != nullptr)

  2032.                 fDescriptor->dispatcher(fHandle2, NATIVE_PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, static_cast<intptr_t>(newBufferSize), nullptr, 0.0f);

  2033.         }

  2034.     }

  2035. 

  2036.     void sampleRateChanged(const double newSampleRate) override

  2037.     {

  2038.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  2039.         carla_debug("CarlaPluginNative::sampleRateChanged(%g)", newSampleRate);

  2040. 

  2041.         if (carla_isEqual(fCurSampleRate, newSampleRate))

  2042.             return;

  2043. 

  2044.         fCurSampleRate = newSampleRate;

  2045. 

  2046.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  2047.         {

  2048.             fDescriptor->dispatcher(fHandle, NATIVE_PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  2049. 

  2050.             if (fHandle2 != nullptr)

  2051.                 fDescriptor->dispatcher(fHandle2, NATIVE_PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  2052.         }

  2053.     }

  2054. 

  2055.     void offlineModeChanged(const bool isOffline) override

  2056.     {

  2057.         if (fIsOffline == isOffline)

  2058.             return;

  2059. 

  2060.         fIsOffline = isOffline;

  2061. 

  2062.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  2063.         {

  2064.             fDescriptor->dispatcher(fHandle, NATIVE_PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  2065. 

  2066.             if (fHandle2 != nullptr)

  2067.                 fDescriptor->dispatcher(fHandle2, NATIVE_PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  2068.         }

  2069.     }

  2070. 

  2071.     // -------------------------------------------------------------------

  2072.     // Plugin buffers

  2073. 

  2074.     void initBuffers() const noexcept override

  2075.     {

  2076.         fMidiIn.initBuffers();

  2077.         fMidiOut.initBuffers();

  2078. 

  2079.         CarlaPlugin::initBuffers();

  2080.     }

  2081. 

  2082.     void clearBuffers() noexcept override

  2083.     {

  2084.         carla_debug("CarlaPluginNative::clearBuffers() - start");

  2085. 

  2086.         if (fAudioInBuffers != nullptr)

  2087.         {

  2088.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  2089.             {

  2090.                 if (fAudioInBuffers[i] != nullptr)

  2091.                 {

  2092.                     delete[] fAudioInBuffers[i];

  2093.                     fAudioInBuffers[i] = nullptr;

  2094.                 }

  2095.             }

  2096. 

  2097.             delete[] fAudioInBuffers;

  2098.             fAudioInBuffers = nullptr;

  2099.         }

  2100. 

  2101.         if (fAudioOutBuffers != nullptr)

  2102.         {

  2103.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  2104.             {

  2105.                 if (fAudioOutBuffers[i] != nullptr)

  2106.                 {

  2107.                     delete[] fAudioOutBuffers[i];

  2108.                     fAudioOutBuffers[i] = nullptr;

  2109.                 }

  2110.             }

  2111. 

  2112.             delete[] fAudioOutBuffers;

  2113.             fAudioOutBuffers = nullptr;

  2114.         }

  2115. 

  2116.         if (fMidiIn.count > 1)

  2117.             pData->event.portIn = nullptr;

  2118. 

  2119.         if (fMidiOut.count > 1)

  2120.             pData->event.portOut = nullptr;

  2121. 

  2122.         fMidiIn.clear();

  2123.         fMidiOut.clear();

  2124. 

  2125.         CarlaPlugin::clearBuffers();

  2126. 

  2127.         carla_debug("CarlaPluginNative::clearBuffers() - end");

  2128.     }

  2129. 

  2130.     // -------------------------------------------------------------------

  2131.     // Post-poned UI Stuff

  2132. 

  2133.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  2134.     {

  2135.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2136.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2137.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  2138. 

  2139.         if (! fIsUiVisible)

  2140.             return;

  2141. 

  2142.         if (fDescriptor->ui_set_parameter_value != nullptr)

  2143.             fDescriptor->ui_set_parameter_value(fHandle, index, value);

  2144.     }

  2145. 

  2146.     void uiMidiProgramChange(const uint32_t index) noexcept override

  2147.     {

  2148.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2149.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2150.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  2151. 

  2152.         if (! fIsUiVisible)

  2153.             return;

  2154.         if (index >= pData->midiprog.count)

  2155.             return;

  2156. 

  2157.         if (fDescriptor->ui_set_midi_program != nullptr)

  2158.             fDescriptor->ui_set_midi_program(fHandle, 0, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  2159.     }

  2160. 

  2161.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  2162.     {

  2163.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2164.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2165.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  2166.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2167.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  2168. 

  2169.         if (! fIsUiVisible)

  2170.             return;

  2171. 

  2172.         // TODO

  2173.     }

  2174. 

  2175.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  2176.     {

  2177.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2178.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2179.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  2180.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2181. 

  2182.         if (! fIsUiVisible)

  2183.             return;

  2184.         if (fDescriptor == nullptr || fHandle == nullptr)

  2185.             return;

  2186. 

  2187.         // TODO

  2188.     }

  2189. 

  2190.     // -------------------------------------------------------------------

  2191. 

  2192. protected:

  2193.     const NativeTimeInfo* handleGetTimeInfo() const noexcept

  2194.     {

  2195.         CARLA_SAFE_ASSERT_RETURN(fIsProcessing, nullptr);

  2196. 

  2197.         return &fTimeInfo;

  2198.     }

  2199. 

  2200.     bool handleWriteMidiEvent(const NativeMidiEvent* const event)

  2201.     {

  2202.         CARLA_SAFE_ASSERT_RETURN(pData->enabled, false);

  2203.         CARLA_SAFE_ASSERT_RETURN(fIsProcessing, false);

  2204.         CARLA_SAFE_ASSERT_RETURN(fMidiOut.count > 0 || pData->event.portOut != nullptr, false);

  2205.         CARLA_SAFE_ASSERT_RETURN(event != nullptr, false);

  2206.         CARLA_SAFE_ASSERT_RETURN(event->data[0] != 0, false);

  2207. 

  2208.         // reverse-find first free event, and put it there

  2209.         for (uint32_t i=(kPluginMaxMidiEvents*2)-1; i >= fMidiEventCount; --i)

  2210.         {

  2211.             if (fMidiEvents[i].data[0] != 0)

  2212.                 continue;

  2213. 

  2214.             std::memcpy(&fMidiEvents[i], event, sizeof(NativeMidiEvent));

  2215.             return true;

  2216.         }

  2217. 

  2218.         carla_stdout("CarlaPluginNative::handleWriteMidiEvent(%p) - buffer full", event);

  2219.         return false;

  2220.     }

  2221. 

  2222.     void handleUiParameterChanged(const uint32_t index, const float value)

  2223.     {

  2224.         setParameterValue(index, value, false, true, true);

  2225.     }

  2226. 

  2227.     void handleUiCustomDataChanged(const char* const key, const char* const value)

  2228.     {

  2229.         setCustomData(CUSTOM_DATA_TYPE_STRING, key, value, false);

  2230.     }

  2231. 

  2232.     void handleUiClosed()

  2233.     {

  2234.         pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2235.         fIsUiVisible = false;

  2236.     }

  2237. 

  2238.     const char* handleUiOpenFile(const bool isDir, const char* const title, const char* const filter)

  2239.     {

  2240.         return pData->engine->runFileCallback(FILE_CALLBACK_OPEN, isDir, title, filter);

  2241.     }

  2242. 

  2243.     const char* handleUiSaveFile(const bool isDir, const char* const title, const char* const filter)

  2244.     {

  2245.         return pData->engine->runFileCallback(FILE_CALLBACK_SAVE, isDir, title, filter);

  2246.     }

  2247. 

  2248.     intptr_t handleDispatcher(const NativeHostDispatcherOpcode opcode, const int32_t index, const intptr_t value, void* const ptr, const float opt)

  2249.     {

  2250.         carla_debug("CarlaPluginNative::handleDispatcher(%i, %i, " P_INTPTR ", %p, %f)", opcode, index, value, ptr, opt);

  2251. 

  2252.         intptr_t ret = 0;

  2253. 

  2254.         switch (opcode)

  2255.         {

  2256.         case NATIVE_HOST_OPCODE_NULL:

  2257.             break;

  2258.         case NATIVE_HOST_OPCODE_UPDATE_PARAMETER:

  2259.             // TODO

  2260.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2261.             break;

  2262.         case NATIVE_HOST_OPCODE_UPDATE_MIDI_PROGRAM:

  2263.             // TODO

  2264.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2265.             break;

  2266.         case NATIVE_HOST_OPCODE_RELOAD_PARAMETERS:

  2267.             reload(); // FIXME

  2268.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PARAMETERS, pData->id, -1, 0, 0.0f, nullptr);

  2269.             break;

  2270.         case NATIVE_HOST_OPCODE_RELOAD_MIDI_PROGRAMS:

  2271.             reloadPrograms(false);

  2272.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, -1, 0, 0.0f, nullptr);

  2273.             break;

  2274.         case NATIVE_HOST_OPCODE_RELOAD_ALL:

  2275.             reload();

  2276.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_ALL, pData->id, -1, 0, 0.0f, nullptr);

  2277.             break;

  2278.         case NATIVE_HOST_OPCODE_UI_UNAVAILABLE:

  2279.             pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, -1, 0, 0.0f, nullptr);

  2280.             fIsUiAvailable = false;

  2281.             break;

  2282.         case NATIVE_HOST_OPCODE_HOST_IDLE:

  2283.             pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2284.             break;

  2285.         case NATIVE_HOST_OPCODE_INTERNAL_PLUGIN:

  2286.             ret = 1;

  2287.             break;

  2288.         }

  2289. 

  2290.         return ret;

  2291. 

  2292.         // unused for now

  2293.         (void)index;

  2294.         (void)value;

  2295.         (void)ptr;

  2296.         (void)opt;

  2297.     }

  2298. 

  2299.     // -------------------------------------------------------------------

  2300. 

  2301. public:

  2302.     void* getNativeHandle() const noexcept override

  2303.     {

  2304.         return fHandle;

  2305.     }

  2306. 

  2307.     const void* getNativeDescriptor() const noexcept override

  2308.     {

  2309.         return fDescriptor;

  2310.     }

  2311. 

  2312.     // -------------------------------------------------------------------

  2313. 

  2314.     bool init(const char* const name, const char* const label, const uint options)

  2315.     {

  2316.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2317. 

  2318.         // ---------------------------------------------------------------

  2319.         // first checks

  2320. 

  2321.         if (pData->client != nullptr)

  2322.         {

  2323.             pData->engine->setLastError("Plugin client is already registered");

  2324.             return false;

  2325.         }

  2326. 

  2327.         if (label == nullptr && label[0] != '\0')

  2328.         {

  2329.             pData->engine->setLastError("null label");

  2330.             return false;

  2331.         }

  2332. 

  2333.         // ---------------------------------------------------------------

  2334.         // get descriptor that matches label

  2335. 

  2336.         sPluginInitializer.initIfNeeded();

  2337. 

  2338.         for (LinkedList<const NativePluginDescriptor*>::Itenerator it = gPluginDescriptors.begin2(); it.valid(); it.next())

  2339.         {

  2340.             fDescriptor = it.getValue(nullptr);

  2341.             CARLA_SAFE_ASSERT_BREAK(fDescriptor != nullptr);

  2342. 

  2343.             carla_debug("Check vs \"%s\"", fDescriptor->label);

  2344. 

  2345.             if (fDescriptor->label != nullptr && std::strcmp(fDescriptor->label, label) == 0)

  2346.                 break;

  2347. 

  2348.             fDescriptor = nullptr;

  2349.         }

  2350. 

  2351.         if (fDescriptor == nullptr)

  2352.         {

  2353.             pData->engine->setLastError("Invalid internal plugin");

  2354.             return false;

  2355.         }

  2356. 

  2357.         // ---------------------------------------------------------------

  2358.         // set icon

  2359. 

  2360.         if (std::strcmp(fDescriptor->label, "audiofile") == 0)

  2361.             pData->iconName = carla_strdup_safe("file");

  2362.         else if (std::strcmp(fDescriptor->label, "midifile") == 0)

  2363.             pData->iconName = carla_strdup_safe("file");

  2364. 

  2365.         // ---------------------------------------------------------------

  2366.         // get info

  2367. 

  2368.         if (name != nullptr && name[0] != '\0')

  2369.             pData->name = pData->engine->getUniquePluginName(name);

  2370.         else if (fDescriptor->name != nullptr && fDescriptor->name[0] != '\0')

  2371.             pData->name = pData->engine->getUniquePluginName(fDescriptor->name);

  2372.         else

  2373.             pData->name = pData->engine->getUniquePluginName(label);

  2374. 

  2375.         {

  2376.             CARLA_ASSERT(fHost.uiName == nullptr);

  2377. 

  2378.             char uiName[std::strlen(pData->name)+6+1];

  2379.             std::strcpy(uiName, pData->name);

  2380.             std::strcat(uiName, " (GUI)");

  2381. 

  2382.             fHost.uiName = carla_strdup(uiName);

  2383.         }

  2384. 

  2385.         // ---------------------------------------------------------------

  2386.         // register client

  2387. 

  2388.         pData->client = pData->engine->addClient(this);

  2389. 

  2390.         if (pData->client == nullptr || ! pData->client->isOk())

  2391.         {

  2392.             pData->engine->setLastError("Failed to register plugin client");

  2393.             return false;

  2394.         }

  2395. 

  2396.         // ---------------------------------------------------------------

  2397.         // initialize plugin

  2398. 

  2399.         fHandle = fDescriptor->instantiate(&fHost);

  2400. 

  2401.         if (fHandle == nullptr)

  2402.         {

  2403.             pData->engine->setLastError("Plugin failed to initialize");

  2404.             return false;

  2405.         }

  2406. 

  2407.         // ---------------------------------------------------------------

  2408.         // set default options

  2409. 

  2410.         bool hasMidiProgs = false;

  2411. 

  2412.         if (fDescriptor->get_midi_program_count != nullptr)

  2413.         {

  2414.             try {

  2415.                 hasMidiProgs = fDescriptor->get_midi_program_count(fHandle) > 0;

  2416.             } catch (...) {}

  2417.         }

  2418. 

  2419.         pData->options = 0x0;

  2420. 

  2421.         if (fMidiOut.count != 0 || (fDescriptor->hints & NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS) != 0)

  2422.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2423.          else if (options & PLUGIN_OPTION_FIXED_BUFFERS)

  2424.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2425. 

  2426.         if (pData->engine->getOptions().forceStereo)

  2427.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2428.         else if (options & PLUGIN_OPTION_FORCE_STEREO)

  2429.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2430. 

  2431.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_CHANNEL_PRESSURE)

  2432.             pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  2433.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_NOTE_AFTERTOUCH)

  2434.             pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  2435.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_PITCHBEND)

  2436.             pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  2437.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_ALL_SOUND_OFF)

  2438.             pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  2439. 

  2440.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_CONTROL_CHANGES)

  2441.         {

  2442.             if (options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  2443.                 pData->options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  2444.         }

  2445. 

  2446.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_PROGRAM_CHANGES)

  2447.         {

  2448.             CARLA_SAFE_ASSERT(! hasMidiProgs);

  2449.             pData->options |= PLUGIN_OPTION_SEND_PROGRAM_CHANGES;

  2450.         }

  2451.         else if (hasMidiProgs)

  2452.             pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  2453. 

  2454.         return true;

  2455.     }

  2456. 

  2457. 

  2458. private:

  2459.     NativePluginHandle   fHandle;

  2460.     NativePluginHandle   fHandle2;

  2461.     NativeHostDescriptor fHost;

  2462.     const NativePluginDescriptor* fDescriptor;

  2463. 

  2464.     bool fIsProcessing;

  2465.     bool fIsOffline;

  2466.     bool fIsUiAvailable;

  2467.     bool fIsUiVisible;

  2468. 

  2469.     float**         fAudioInBuffers;

  2470.     float**         fAudioOutBuffers;

  2471.     uint32_t        fMidiEventCount;

  2472.     NativeMidiEvent fMidiEvents[kPluginMaxMidiEvents*2];

  2473. 

  2474.     int32_t  fCurMidiProgs[MAX_MIDI_CHANNELS];

  2475.     uint32_t fCurBufferSize;

  2476.     double   fCurSampleRate;

  2477. 

  2478.     NativePluginMidiData fMidiIn;

  2479.     NativePluginMidiData fMidiOut;

  2480. 

  2481.     NativeTimeInfo fTimeInfo;

  2482. 

  2483.     // -------------------------------------------------------------------

  2484. 

  2485.     #define handlePtr ((CarlaPluginNative*)handle)

  2486. 

  2487.     static uint32_t carla_host_get_buffer_size(NativeHostHandle handle) noexcept

  2488.     {

  2489.         return handlePtr->fCurBufferSize;

  2490.     }

  2491. 

  2492.     static double carla_host_get_sample_rate(NativeHostHandle handle) noexcept

  2493.     {

  2494.         return handlePtr->fCurSampleRate;

  2495.     }

  2496. 

  2497.     static bool carla_host_is_offline(NativeHostHandle handle) noexcept

  2498.     {

  2499.         return handlePtr->fIsOffline;

  2500.     }

  2501. 

  2502.     static const NativeTimeInfo* carla_host_get_time_info(NativeHostHandle handle) noexcept

  2503.     {

  2504.         return handlePtr->handleGetTimeInfo();

  2505.     }

  2506. 

  2507.     static bool carla_host_write_midi_event(NativeHostHandle handle, const NativeMidiEvent* event)

  2508.     {

  2509.         return handlePtr->handleWriteMidiEvent(event);

  2510.     }

  2511. 

  2512.     static void carla_host_ui_parameter_changed(NativeHostHandle handle, uint32_t index, float value)

  2513.     {

  2514.         handlePtr->handleUiParameterChanged(index, value);

  2515.     }

  2516. 

  2517.     static void carla_host_ui_custom_data_changed(NativeHostHandle handle, const char* key, const char* value)

  2518.     {

  2519.         handlePtr->handleUiCustomDataChanged(key, value);

  2520.     }

  2521. 

  2522.     static void carla_host_ui_closed(NativeHostHandle handle)

  2523.     {

  2524.         handlePtr->handleUiClosed();

  2525.     }

  2526. 

  2527.     static const char* carla_host_ui_open_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2528.     {

  2529.         return handlePtr->handleUiOpenFile(isDir, title, filter);

  2530.     }

  2531. 

  2532.     static const char* carla_host_ui_save_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2533.     {

  2534.         return handlePtr->handleUiSaveFile(isDir, title, filter);

  2535.     }

  2536. 

  2537.     static intptr_t carla_host_dispatcher(NativeHostHandle handle, NativeHostDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  2538.     {

  2539.         return handlePtr->handleDispatcher(opcode, index, value, ptr, opt);

  2540.     }

  2541. 

  2542.     #undef handlePtr

  2543. 

  2544.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginNative)

  2545. };

  2546. 

  2547. // -----------------------------------------------------------------------

  2548. 

  2549. CarlaPlugin* CarlaPlugin::newNative(const Initializer& init)

  2550. {

  2551.     carla_debug("CarlaPlugin::newNative({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "})", init.engine, init.filename, init.name, init.label, init.uniqueId);

  2552. 

  2553.     CarlaPluginNative* const plugin(new CarlaPluginNative(init.engine, init.id));

  2554. 

  2555.     if (! plugin->init(init.name, init.label, init.options))

  2556.     {

  2557.         delete plugin;

  2558.         return nullptr;

  2559.     }

  2560. 

  2561.     return plugin;

  2562. }

  2563. 

  2564. // -----------------------------------------------------------------------

  2565. 

  2566. CARLA_BACKEND_END_NAMESPACE