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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) 2012-2018 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. #ifndef BUILD_BRIDGE

  233.             pData->transientTryCounter = 0;

  234. #endif

  235.         }

  236. 

  237.         pData->singleMutex.lock();

  238.         pData->masterMutex.lock();

  239. 

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

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

  242. 

  243.         CARLA_ASSERT(! fIsProcessing);

  244. 

  245.         if (pData->active)

  246.         {

  247.             deactivate();

  248.             pData->active = false;

  249.         }

  250. 

  251.         if (fDescriptor != nullptr)

  252.         {

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

  254.             {

  255.                 if (fHandle != nullptr)

  256.                     fDescriptor->cleanup(fHandle);

  257.                 if (fHandle2 != nullptr)

  258.                     fDescriptor->cleanup(fHandle2);

  259.             }

  260. 

  261.             fHandle  = nullptr;

  262.             fHandle2 = nullptr;

  263.             fDescriptor = nullptr;

  264.         }

  265. 

  266.         if (fHost.resourceDir != nullptr)

  267.         {

  268.             delete[] fHost.resourceDir;

  269.             fHost.resourceDir = nullptr;

  270.         }

  271. 

  272.         if (fHost.uiName != nullptr)

  273.         {

  274.             delete[] fHost.uiName;

  275.             fHost.uiName = nullptr;

  276.         }

  277. 

  278.         clearBuffers();

  279.     }

  280. 

  281.     // -------------------------------------------------------------------

  282.     // Information (base)

  283. 

  284.     PluginType getType() const noexcept override

  285.     {

  286.         return PLUGIN_INTERNAL;

  287.     }

  288. 

  289.     PluginCategory getCategory() const noexcept override

  290.     {

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

  292. 

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

  294.     }

  295. 

  296.     // -------------------------------------------------------------------

  297.     // Information (count)

  298. 

  299.     uint32_t getMidiInCount() const noexcept override

  300.     {

  301.         return fMidiIn.count;

  302.     }

  303. 

  304.     uint32_t getMidiOutCount() const noexcept override

  305.     {

  306.         return fMidiOut.count;

  307.     }

  308. 

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

  310.     {

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

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

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

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

  315. 

  316.         // FIXME - try

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

  318.             return param->scalePointCount;

  319. 

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

  321.         return 0;

  322.     }

  323. 

  324.     // -------------------------------------------------------------------

  325.     // Information (current data)

  326. 

  327.     // nothing

  328. 

  329.     // -------------------------------------------------------------------

  330.     // Information (per-plugin data)

  331. 

  332.     uint getOptionsAvailable() const noexcept override

  333.     {

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

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

  336. 

  337.         bool hasMidiProgs = false;

  338. 

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

  340.         {

  341.             try {

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

  343.             } catch (...) {}

  344.         }

  345. 

  346.         uint options = 0x0;

  347. 

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

  349.         if (fDescriptor->midiOuts == 0 && (fDescriptor->hints & NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS) == 0)

  350.             options |= PLUGIN_OPTION_FIXED_BUFFERS;

  351. 

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

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

  354.             pass();

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

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

  357.             options |= PLUGIN_OPTION_FORCE_STEREO;

  358. 

  359.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_CONTROL_CHANGES)

  360.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  361.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_CHANNEL_PRESSURE)

  362.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  363.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_NOTE_AFTERTOUCH)

  364.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  365.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_PITCHBEND)

  366.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

  367.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_ALL_SOUND_OFF)

  368.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  369. 

  370.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_PROGRAM_CHANGES)

  371.             options |= PLUGIN_OPTION_SEND_PROGRAM_CHANGES;

  372.         else if (hasMidiProgs)

  373.             options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  374. 

  375.         return options;

  376.     }

  377. 

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

  379.     {

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

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

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

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

  384. 

  385.         // FIXME - try

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

  387.     }

  388. 

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

  390.     {

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

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

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

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

  395. 

  396.         // FIXME - try

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

  398.         {

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

  400. 

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

  402.             return scalePoint->value;

  403.         }

  404. 

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

  406.         return 0.0f;

  407.     }

  408. 

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

  410.     {

  411.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  412. 

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

  414.         {

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

  416.             return;

  417.         }

  418. 

  419.         CarlaPlugin::getLabel(strBuf);

  420.     }

  421. 

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

  423.     {

  424.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  425. 

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

  427.         {

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

  429.             return;

  430.         }

  431. 

  432.         CarlaPlugin::getMaker(strBuf);

  433.     }

  434. 

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

  436.     {

  437.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  438. 

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

  440.         {

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

  442.             return;

  443.         }

  444. 

  445.         CarlaPlugin::getCopyright(strBuf);

  446.     }

  447. 

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

  449.     {

  450.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  451. 

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

  453.         {

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

  455.             return;

  456.         }

  457. 

  458.         CarlaPlugin::getRealName(strBuf);

  459.     }

  460. 

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

  462.     {

  463.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  465.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  467. 

  468.         // FIXME - try

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

  470.         {

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

  472.             {

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

  474.                 return;

  475.             }

  476. 

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

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

  479.         }

  480. 

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

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

  483.     }

  484. 

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

  486.     {

  487.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  489.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  491. 

  492.         // FIXME - try

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

  494.         {

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

  496.             {

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

  498.                 return;

  499.             }

  500. 

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

  502.         }

  503. 

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

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

  506.     }

  507. 

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

  509.     {

  510.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  512.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  514. 

  515.         // FIXME - try

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

  517.         {

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

  519. 

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

  521. 

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

  523.             {

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

  525.                 return;

  526.             }

  527. 

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

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

  530.         }

  531. 

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

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

  534.     }

  535. 

  536.     // -------------------------------------------------------------------

  537.     // Set data (state)

  538. 

  539.     void prepareForSave() override

  540.     {

  541.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  542.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  543. 

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

  545.         {

  546.             char strBuf[STR_MAX+1];

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

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

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

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

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

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

  553. 

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

  555.         }

  556. 

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

  558.             return;

  559. 

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

  561.         {

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

  563.             std::free(data);

  564.         }

  565.     }

  566. 

  567.     // -------------------------------------------------------------------

  568.     // Set data (internal stuff)

  569. 

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

  571.     {

  572.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  573.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  575. 

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

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

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

  579. 

  580.         if (fHost.uiName != nullptr)

  581.             delete[] fHost.uiName;

  582.         fHost.uiName = carla_strdup(uiName);

  583. 

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

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

  586. 

  587.         CarlaPlugin::setName(newName);

  588.     }

  589. 

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

  591.     {

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

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

  594. 

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

  596.     }

  597. 

  598.     // -------------------------------------------------------------------

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

  600. 

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

  602.     {

  603.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  605.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  607. 

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

  609. 

  610.         // FIXME - try

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

  612. 

  613.         if (fHandle2 != nullptr)

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

  615. 

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

  617.     }

  618. 

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

  620.     {

  621.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  623.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  625. 

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

  627. 

  628.         // FIXME - try

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

  630. 

  631.         if (fHandle2 != nullptr)

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

  633. 

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

  635.     }

  636. 

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

  638.     {

  639.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  640.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

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

  643.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

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

  645. 

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

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

  648. 

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

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

  651. 

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

  653.         {

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

  655.             {

  656.                 const ScopedSingleProcessLocker spl(this, true);

  657. 

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

  659. 

  660.                 if (fHandle2 != nullptr)

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

  662.             }

  663.         }

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

  665.         {

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

  667. 

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

  669.             {

  670.                 uint8_t channel = 0;

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

  672.                 {

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

  674. 

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

  676.                     {

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

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

  679. 

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

  681. 

  682.                         if (fHandle2 != nullptr)

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

  684. 

  685.                         fCurMidiProgs[channel] = index;

  686. 

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

  688.                         {

  689.                             pData->midiprog.current = index;

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

  691.                         }

  692.                     }

  693. 

  694.                     ++channel;

  695.                 }

  696.                 CARLA_SAFE_ASSERT(channel == MAX_MIDI_CHANNELS);

  697.             }

  698.         }

  699.         else

  700.         {

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

  702.             {

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

  704. 

  705.                 if (fHandle2 != nullptr)

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

  707.             }

  708. 

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

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

  711.         }

  712. 

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

  714.     }

  715. 

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

  717.     {

  718.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  719.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  721.         CARLA_SAFE_ASSERT_RETURN(sendGui || sendOsc || sendCallback || doingInit,);

  722. 

  723.         // TODO, put into check below

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

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

  726. 

  727.         if (index >= 0)

  728.         {

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

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

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

  732. 

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

  734. 

  735.             try {

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

  737.             } catch(...) {}

  738. 

  739.             if (fHandle2 != nullptr)

  740.             {

  741.                 try {

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

  743.                 } catch(...) {}

  744.             }

  745. 

  746.             fCurMidiProgs[channel] = index;

  747.         }

  748. 

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

  750.     }

  751. 

  752.     void setMidiProgramRT(const uint32_t index) noexcept override

  753.     {

  754.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  755.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  757. 

  758.         // TODO, put into check below

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

  760.            return CarlaPlugin::setMidiProgramRT(index);

  761. 

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

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

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

  765. 

  766.         try {

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

  768.         } catch(...) {}

  769. 

  770.         if (fHandle2 != nullptr)

  771.         {

  772.             try {

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

  774.             } catch(...) {}

  775.         }

  776. 

  777.         fCurMidiProgs[channel] = index;

  778. 

  779.         CarlaPlugin::setMidiProgramRT(index);

  780.     }

  781. 

  782.     // -------------------------------------------------------------------

  783.     // Set ui stuff

  784. 

  785.     void showCustomUI(const bool yesNo) override

  786.     {

  787.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  788.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  789. 

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

  791.             return;

  792. 

  793.         fIsUiAvailable = true;

  794. 

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

  796. 

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

  798.         if (yesNo && ! fIsUiAvailable)

  799.             return;

  800. 

  801.         fIsUiVisible = yesNo;

  802. 

  803.         if (! yesNo)

  804.         {

  805. #ifndef BUILD_BRIDGE

  806.             pData->transientTryCounter = 0;

  807. #endif

  808.             return;

  809.         }

  810. 

  811. #ifndef BUILD_BRIDGE

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

  813.             pData->tryTransient();

  814. #endif

  815. 

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

  817.         {

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

  819.             {

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

  821.                 CARLA_SAFE_ASSERT_CONTINUE(cData.isValid());

  822. 

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

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

  825.             }

  826.         }

  827. 

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

  829.         {

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

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

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

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

  834. 

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

  836.         }

  837. 

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

  839.         {

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

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

  842.         }

  843.     }

  844. 

  845.     void uiIdle() override

  846.     {

  847.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  848.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  849. 

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

  851.             fDescriptor->ui_idle(fHandle);

  852. 

  853.         CarlaPlugin::uiIdle();

  854.     }

  855. 

  856.     // -------------------------------------------------------------------

  857.     // Plugin state

  858. 

  859.     void reload() override

  860.     {

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

  862.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  863.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  865. 

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

  867. 

  868.         // Safely disable plugin for reload

  869.         const ScopedDisabler sd(this);

  870. 

  871.         if (pData->active)

  872.             deactivate();

  873. 

  874.         clearBuffers();

  875. 

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

  877. 

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

  879. 

  880.         bool forcedStereoIn, forcedStereoOut;

  881.         forcedStereoIn = forcedStereoOut = false;

  882. 

  883.         bool needsCtrlIn, needsCtrlOut;

  884.         needsCtrlIn = needsCtrlOut = false;

  885. 

  886.         aIns   = fDescriptor->audioIns;

  887.         aOuts  = fDescriptor->audioOuts;

  888.         mIns   = fDescriptor->midiIns;

  889.         mOuts  = fDescriptor->midiOuts;

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

  891. 

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

  893.         {

  894.             if (fHandle2 == nullptr)

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

  896. 

  897.             if (fHandle2 != nullptr)

  898.             {

  899.                 if (aIns == 1)

  900.                 {

  901.                     aIns = 2;

  902.                     forcedStereoIn = true;

  903.                 }

  904. 

  905.                 if (aOuts == 1)

  906.                 {

  907.                     aOuts = 2;

  908.                     forcedStereoOut = true;

  909.                 }

  910.             }

  911.         }

  912. 

  913.         if (aIns > 0)

  914.         {

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

  916.             fAudioInBuffers = new float*[aIns];

  917. 

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

  919.                 fAudioInBuffers[i] = nullptr;

  920.         }

  921. 

  922.         if (aOuts > 0)

  923.         {

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

  925.             fAudioOutBuffers = new float*[aOuts];

  926.             needsCtrlIn = true;

  927. 

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

  929.                 fAudioOutBuffers[i] = nullptr;

  930.         }

  931. 

  932.         if (mIns > 0)

  933.         {

  934.             fMidiIn.createNew(mIns);

  935.             needsCtrlIn = (mIns == 1);

  936.         }

  937. 

  938.         if (mOuts > 0)

  939.         {

  940.             fMidiOut.createNew(mOuts);

  941.             needsCtrlOut = (mOuts == 1);

  942.         }

  943. 

  944.         if (params > 0)

  945.         {

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

  947.         }

  948. 

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

  950.         CarlaString portName;

  951. 

  952.         // Audio Ins

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

  954.         {

  955.             portName.clear();

  956. 

  957.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  958.             {

  959.                 portName  = pData->name;

  960.                 portName += ":";

  961.             }

  962. 

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

  964.             {

  965.                 portName += "input_";

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

  967.             }

  968.             else

  969.                 portName += "input";

  970. 

  971.             portName.truncate(portNameSize);

  972. 

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

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

  975. 

  976.             if (forcedStereoIn)

  977.             {

  978.                 portName += "_2";

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

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

  981.                 break;

  982.             }

  983.         }

  984. 

  985.         // Audio Outs

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

  987.         {

  988.             portName.clear();

  989. 

  990.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  991.             {

  992.                 portName  = pData->name;

  993.                 portName += ":";

  994.             }

  995. 

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

  997.             {

  998.                 portName += "output_";

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

  1000.             }

  1001.             else

  1002.                 portName += "output";

  1003. 

  1004.             portName.truncate(portNameSize);

  1005. 

  1006.             pData->audioOut.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false, j);

  1007.             pData->audioOut.ports[j].rindex = j;

  1008. 

  1009.             if (forcedStereoOut)

  1010.             {

  1011.                 portName += "_2";

  1012.                 pData->audioOut.ports[1].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false, 1);

  1013.                 pData->audioOut.ports[1].rindex = j;

  1014.                 break;

  1015.             }

  1016.         }

  1017. 

  1018.         // MIDI Input (only if multiple)

  1019.         if (mIns > 1)

  1020.         {

  1021.             for (j=0; j < mIns; ++j)

  1022.             {

  1023.                 portName.clear();

  1024. 

  1025.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1026.                 {

  1027.                     portName  = pData->name;

  1028.                     portName += ":";

  1029.                 }

  1030. 

  1031.                 portName += "midi-in_";

  1032.                 portName += CarlaString(j+1);

  1033.                 portName.truncate(portNameSize);

  1034. 

  1035.                 fMidiIn.ports[j]   = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true, j);

  1036.                 fMidiIn.indexes[j] = j;

  1037.             }

  1038. 

  1039.             pData->event.portIn = fMidiIn.ports[0];

  1040.         }

  1041. 

  1042.         // MIDI Output (only if multiple)

  1043.         if (mOuts > 1)

  1044.         {

  1045.             for (j=0; j < mOuts; ++j)

  1046.             {

  1047.                 portName.clear();

  1048. 

  1049.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1050.                 {

  1051.                     portName  = pData->name;

  1052.                     portName += ":";

  1053.                 }

  1054. 

  1055.                 portName += "midi-out_";

  1056.                 portName += CarlaString(j+1);

  1057.                 portName.truncate(portNameSize);

  1058. 

  1059.                 fMidiOut.ports[j]   = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false, j);

  1060.                 fMidiOut.indexes[j] = j;

  1061.             }

  1062. 

  1063.             pData->event.portOut = fMidiOut.ports[0];

  1064.         }

  1065. 

  1066.         for (j=0; j < params; ++j)

  1067.         {

  1068.             const NativeParameter* const paramInfo(fDescriptor->get_parameter_info(fHandle, j));

  1069. 

  1070.             CARLA_SAFE_ASSERT_CONTINUE(paramInfo != nullptr);

  1071. 

  1072.             pData->param.data[j].type   = PARAMETER_UNKNOWN;

  1073.             pData->param.data[j].index  = static_cast<int32_t>(j);

  1074.             pData->param.data[j].rindex = static_cast<int32_t>(j);

  1075. 

  1076.             float min, max, def, step, stepSmall, stepLarge;

  1077. 

  1078.             // min value

  1079.             min = paramInfo->ranges.min;

  1080. 

  1081.             // max value

  1082.             max = paramInfo->ranges.max;

  1083. 

  1084.             if (min > max)

  1085.                 max = min;

  1086.             else if (max < min)

  1087.                 min = max;

  1088. 

  1089.             if (carla_isEqual(min, max))

  1090.             {

  1091.                 carla_stderr2("WARNING - Broken plugin parameter '%s': max == min", paramInfo->name);

  1092.                 max = min + 0.1f;

  1093.             }

  1094. 

  1095.             // default value

  1096.             def = paramInfo->ranges.def;

  1097. 

  1098.             if (def < min)

  1099.                 def = min;

  1100.             else if (def > max)

  1101.                 def = max;

  1102. 

  1103.             if (paramInfo->hints & NATIVE_PARAMETER_USES_SAMPLE_RATE)

  1104.             {

  1105.                 min *= sampleRate;

  1106.                 max *= sampleRate;

  1107.                 def *= sampleRate;

  1108.                 pData->param.data[j].hints |= PARAMETER_USES_SAMPLERATE;

  1109.             }

  1110. 

  1111.             if (paramInfo->hints & NATIVE_PARAMETER_IS_BOOLEAN)

  1112.             {

  1113.                 step = max - min;

  1114.                 stepSmall = step;

  1115.                 stepLarge = step;

  1116.                 pData->param.data[j].hints |= PARAMETER_IS_BOOLEAN;

  1117.             }

  1118.             else if (paramInfo->hints & NATIVE_PARAMETER_IS_INTEGER)

  1119.             {

  1120.                 step = 1.0f;

  1121.                 stepSmall = 1.0f;

  1122.                 stepLarge = 10.0f;

  1123.                 pData->param.data[j].hints |= PARAMETER_IS_INTEGER;

  1124.             }

  1125.             else

  1126.             {

  1127.                 float range = max - min;

  1128.                 step = range/100.0f;

  1129.                 stepSmall = range/1000.0f;

  1130.                 stepLarge = range/10.0f;

  1131.             }

  1132. 

  1133.             if (paramInfo->hints & NATIVE_PARAMETER_IS_OUTPUT)

  1134.             {

  1135.                 pData->param.data[j].type = PARAMETER_OUTPUT;

  1136.                 needsCtrlOut = true;

  1137.             }

  1138.             else

  1139.             {

  1140.                 pData->param.data[j].type = PARAMETER_INPUT;

  1141.                 needsCtrlIn = true;

  1142.             }

  1143. 

  1144.             // extra parameter hints

  1145.             if (paramInfo->hints & NATIVE_PARAMETER_IS_ENABLED)

  1146.                 pData->param.data[j].hints |= PARAMETER_IS_ENABLED;

  1147. 

  1148.             if (paramInfo->hints & NATIVE_PARAMETER_IS_AUTOMABLE)

  1149.                 pData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE;

  1150. 

  1151.             if (paramInfo->hints & NATIVE_PARAMETER_IS_LOGARITHMIC)

  1152.                 pData->param.data[j].hints |= PARAMETER_IS_LOGARITHMIC;

  1153. 

  1154.             if (paramInfo->hints & NATIVE_PARAMETER_USES_SCALEPOINTS)

  1155.                 pData->param.data[j].hints |= PARAMETER_USES_SCALEPOINTS;

  1156. 

  1157.             pData->param.ranges[j].min = min;

  1158.             pData->param.ranges[j].max = max;

  1159.             pData->param.ranges[j].def = def;

  1160.             pData->param.ranges[j].step = step;

  1161.             pData->param.ranges[j].stepSmall = stepSmall;

  1162.             pData->param.ranges[j].stepLarge = stepLarge;

  1163.         }

  1164. 

  1165.         if (needsCtrlIn && mIns <= 1)

  1166.         {

  1167.             portName.clear();

  1168. 

  1169.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1170.             {

  1171.                 portName  = pData->name;

  1172.                 portName += ":";

  1173.             }

  1174. 

  1175.             portName += "events-in";

  1176.             portName.truncate(portNameSize);

  1177. 

  1178.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true, 0);

  1179.         }

  1180. 

  1181.         if (needsCtrlOut && mOuts <= 1)

  1182.         {

  1183.             portName.clear();

  1184. 

  1185.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1186.             {

  1187.                 portName  = pData->name;

  1188.                 portName += ":";

  1189.             }

  1190. 

  1191.             portName += "events-out";

  1192.             portName.truncate(portNameSize);

  1193. 

  1194.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false, 0);

  1195.         }

  1196. 

  1197.         if (forcedStereoIn || forcedStereoOut)

  1198.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1199.         else

  1200.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  1201. 

  1202.         // plugin hints

  1203.         pData->hints = 0x0;

  1204. 

  1205.         if (aOuts > 0 && (aIns == aOuts || aIns == 1))

  1206.             pData->hints |= PLUGIN_CAN_DRYWET;

  1207. 

  1208.         if (aOuts > 0)

  1209.             pData->hints |= PLUGIN_CAN_VOLUME;

  1210. 

  1211.         if (aOuts >= 2 && aOuts % 2 == 0)

  1212.             pData->hints |= PLUGIN_CAN_BALANCE;

  1213. 

  1214.         // native plugin hints

  1215.         if (fDescriptor->hints & NATIVE_PLUGIN_IS_RTSAFE)

  1216.             pData->hints |= PLUGIN_IS_RTSAFE;

  1217.         if (fDescriptor->hints & NATIVE_PLUGIN_IS_SYNTH)

  1218.             pData->hints |= PLUGIN_IS_SYNTH;

  1219.         if (fDescriptor->hints & NATIVE_PLUGIN_HAS_UI)

  1220.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  1221.         if (fDescriptor->hints & NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS)

  1222.             pData->hints |= PLUGIN_NEEDS_FIXED_BUFFERS;

  1223.         if (fDescriptor->hints & NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD)

  1224.             pData->hints |= PLUGIN_NEEDS_UI_MAIN_THREAD;

  1225.         if (fDescriptor->hints & NATIVE_PLUGIN_USES_MULTI_PROGS)

  1226.             pData->hints |= PLUGIN_USES_MULTI_PROGS;

  1227. 

  1228.         // extra plugin hints

  1229.         pData->extraHints = 0x0;

  1230. 

  1231.         if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0) && mIns <= 1 && mOuts <= 1)

  1232.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1233. 

  1234.         bufferSizeChanged(pData->engine->getBufferSize());

  1235.         reloadPrograms(true);

  1236. 

  1237.         if (pData->active)

  1238.             activate();

  1239. 

  1240.         carla_debug("CarlaPluginNative::reload() - end");

  1241.     }

  1242. 

  1243.     void reloadPrograms(const bool doInit) override

  1244.     {

  1245.         carla_debug("CarlaPluginNative::reloadPrograms(%s)", bool2str(doInit));

  1246.         uint32_t i, oldCount  = pData->midiprog.count;

  1247.         const int32_t current = pData->midiprog.current;

  1248. 

  1249.         // Delete old programs

  1250.         pData->midiprog.clear();

  1251. 

  1252.         // Query new programs

  1253.         uint32_t count = 0;

  1254.         if (fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_info != nullptr && fDescriptor->set_midi_program != nullptr)

  1255.             count = fDescriptor->get_midi_program_count(fHandle);

  1256. 

  1257.         if (count > 0)

  1258.         {

  1259.             pData->midiprog.createNew(count);

  1260. 

  1261.             // Update data

  1262.             for (i=0; i < count; ++i)

  1263.             {

  1264.                 const NativeMidiProgram* const mpDesc(fDescriptor->get_midi_program_info(fHandle, i));

  1265.                 CARLA_SAFE_ASSERT_CONTINUE(mpDesc != nullptr);

  1266. 

  1267.                 pData->midiprog.data[i].bank    = mpDesc->bank;

  1268.                 pData->midiprog.data[i].program = mpDesc->program;

  1269.                 pData->midiprog.data[i].name    = carla_strdup(mpDesc->name);

  1270.             }

  1271.         }

  1272. 

  1273. #if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)

  1274.         // Update OSC Names

  1275.         if (pData->engine->isOscControlRegistered() && pData->id < pData->engine->getCurrentPluginCount())

  1276.         {

  1277.             pData->engine->oscSend_control_set_midi_program_count(pData->id, count);

  1278. 

  1279.             for (i=0; i < count; ++i)

  1280.                 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);

  1281.         }

  1282. #endif

  1283. 

  1284.         if (doInit)

  1285.         {

  1286.             if (count > 0)

  1287.                 setMidiProgram(0, false, false, false, true);

  1288.         }

  1289.         else

  1290.         {

  1291.             // Check if current program is invalid

  1292.             bool programChanged = false;

  1293. 

  1294.             if (count == oldCount+1)

  1295.             {

  1296.                 // one midi program added, probably created by user

  1297.                 pData->midiprog.current = static_cast<int32_t>(oldCount);

  1298.                 programChanged = true;

  1299.             }

  1300.             else if (current < 0 && count > 0)

  1301.             {

  1302.                 // programs exist now, but not before

  1303.                 pData->midiprog.current = 0;

  1304.                 programChanged = true;

  1305.             }

  1306.             else if (current >= 0 && count == 0)

  1307.             {

  1308.                 // programs existed before, but not anymore

  1309.                 pData->midiprog.current = -1;

  1310.                 programChanged = true;

  1311.             }

  1312.             else if (current >= static_cast<int32_t>(count))

  1313.             {

  1314.                 // current midi program > count

  1315.                 pData->midiprog.current = 0;

  1316.                 programChanged = true;

  1317.             }

  1318.             else

  1319.             {

  1320.                 // no change

  1321.                 pData->midiprog.current = current;

  1322.             }

  1323. 

  1324.             if (programChanged)

  1325.                 setMidiProgram(pData->midiprog.current, true, true, true, false);

  1326. 

  1327.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1328.         }

  1329.     }

  1330. 

  1331.     // -------------------------------------------------------------------

  1332.     // Plugin processing

  1333. 

  1334.     void activate() noexcept override

  1335.     {

  1336.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1337.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1338. 

  1339.         if (fDescriptor->activate != nullptr)

  1340.         {

  1341.             try {

  1342.                 fDescriptor->activate(fHandle);

  1343.             } catch(...) {}

  1344. 

  1345.             if (fHandle2 != nullptr)

  1346.             {

  1347.                 try {

  1348.                     fDescriptor->activate(fHandle2);

  1349.                 } catch(...) {}

  1350.             }

  1351.         }

  1352.     }

  1353. 

  1354.     void deactivate() noexcept override

  1355.     {

  1356.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1357.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1358. 

  1359.         if (fDescriptor->deactivate != nullptr)

  1360.         {

  1361.             try {

  1362.                 fDescriptor->deactivate(fHandle);

  1363.             } catch(...) {}

  1364. 

  1365.             if (fHandle2 != nullptr)

  1366.             {

  1367.                 try {

  1368.                     fDescriptor->deactivate(fHandle2);

  1369.                 } catch(...) {}

  1370.             }

  1371.         }

  1372.     }

  1373. 

  1374.     void process(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames) override

  1375.     {

  1376.         // --------------------------------------------------------------------------------------------------------

  1377.         // Check if active

  1378. 

  1379.         if (! pData->active)

  1380.         {

  1381.             // disable any output sound

  1382.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1383.                 carla_zeroFloats(audioOut[i], frames);

  1384.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1385.                 carla_zeroFloats(cvOut[i], frames);

  1386.             return;

  1387.         }

  1388. 

  1389.         fMidiEventCount = 0;

  1390.         carla_zeroStructs(fMidiEvents, kPluginMaxMidiEvents*2);

  1391. 

  1392.         // --------------------------------------------------------------------------------------------------------

  1393.         // Check if needs reset

  1394. 

  1395.         if (pData->needsReset)

  1396.         {

  1397.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1398.             {

  1399.                 fMidiEventCount = MAX_MIDI_CHANNELS*2;

  1400. 

  1401.                 for (uint8_t k=0, i=MAX_MIDI_CHANNELS; k < MAX_MIDI_CHANNELS; ++k)

  1402.                 {

  1403.                     fMidiEvents[k].data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (k & MIDI_CHANNEL_BIT));

  1404.                     fMidiEvents[k].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1405.                     fMidiEvents[k].data[2] = 0;

  1406.                     fMidiEvents[k].size    = 3;

  1407. 

  1408.                     fMidiEvents[k+i].data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (k & MIDI_CHANNEL_BIT));

  1409.                     fMidiEvents[k+i].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1410.                     fMidiEvents[k+i].data[2] = 0;

  1411.                     fMidiEvents[k+i].size    = 3;

  1412.                 }

  1413.             }

  1414.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1415.             {

  1416.                 fMidiEventCount = MAX_MIDI_NOTE;

  1417. 

  1418.                 for (uint8_t k=0; k < MAX_MIDI_NOTE; ++k)

  1419.                 {

  1420.                     fMidiEvents[k].data[0] = uint8_t(MIDI_STATUS_NOTE_OFF | (pData->ctrlChannel & MIDI_CHANNEL_BIT));

  1421.                     fMidiEvents[k].data[1] = k;

  1422.                     fMidiEvents[k].data[2] = 0;

  1423.                     fMidiEvents[k].size    = 3;

  1424.                 }

  1425.             }

  1426. 

  1427.             pData->needsReset = false;

  1428.         }

  1429. 

  1430.         // --------------------------------------------------------------------------------------------------------

  1431.         // Set TimeInfo

  1432. 

  1433.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1434. 

  1435.         fTimeInfo.playing = timeInfo.playing;

  1436.         fTimeInfo.frame   = timeInfo.frame;

  1437.         fTimeInfo.usecs   = timeInfo.usecs;

  1438. 

  1439.         if (timeInfo.bbt.valid)

  1440.         {

  1441.             fTimeInfo.bbt.valid = true;

  1442. 

  1443.             fTimeInfo.bbt.bar  = timeInfo.bbt.bar;

  1444.             fTimeInfo.bbt.beat = timeInfo.bbt.beat;

  1445.             fTimeInfo.bbt.tick = timeInfo.bbt.tick;

  1446.             fTimeInfo.bbt.barStartTick = timeInfo.bbt.barStartTick;

  1447. 

  1448.             fTimeInfo.bbt.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1449.             fTimeInfo.bbt.beatType    = timeInfo.bbt.beatType;

  1450. 

  1451.             fTimeInfo.bbt.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1452.             fTimeInfo.bbt.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1453.         }

  1454.         else

  1455.         {

  1456.             fTimeInfo.bbt.valid = false;

  1457.         }

  1458. 

  1459.         // --------------------------------------------------------------------------------------------------------

  1460.         // Event Input and Processing

  1461. 

  1462.         if (pData->event.portIn != nullptr)

  1463.         {

  1464.             // ----------------------------------------------------------------------------------------------------

  1465.             // MIDI Input (External)

  1466. 

  1467.             if (pData->extNotes.mutex.tryLock())

  1468.             {

  1469.                 ExternalMidiNote note = { 0, 0, 0 };

  1470. 

  1471.                 for (; fMidiEventCount < kPluginMaxMidiEvents*2 && ! pData->extNotes.data.isEmpty();)

  1472.                 {

  1473.                     note = pData->extNotes.data.getFirst(note, true);

  1474. 

  1475.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1476. 

  1477.                     NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1478. 

  1479.                     nativeEvent.data[0] = uint8_t((note.velo > 0 ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF) | (note.channel & MIDI_CHANNEL_BIT));

  1480.                     nativeEvent.data[1] = note.note;

  1481.                     nativeEvent.data[2] = note.velo;

  1482.                     nativeEvent.size    = 3;

  1483.                 }

  1484. 

  1485.                 pData->extNotes.mutex.unlock();

  1486. 

  1487.             } // End of MIDI Input (External)

  1488. 

  1489.             // ----------------------------------------------------------------------------------------------------

  1490.             // Event Input (System)

  1491. 

  1492. #ifndef BUILD_BRIDGE

  1493.             bool allNotesOffSent = false;

  1494. #endif

  1495.             bool sampleAccurate  = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1496. 

  1497.             uint32_t startTime  = 0;

  1498.             uint32_t timeOffset = 0;

  1499.             uint32_t nextBankId;

  1500. 

  1501.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1502.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1503.             else

  1504.                 nextBankId = 0;

  1505. 

  1506.             for (uint32_t m=0, max=jmax(1U, fMidiIn.count); m < max; ++m)

  1507.             {

  1508.                 CarlaEngineEventPort* const eventPort(m == 0 ? pData->event.portIn : fMidiIn.ports[m]);

  1509. 

  1510.             for (uint32_t i=0, numEvents=eventPort->getEventCount(); i < numEvents; ++i)

  1511.             {

  1512.                 const EngineEvent& event(eventPort->getEvent(i));

  1513. 

  1514.                 if (event.time >= frames)

  1515.                     continue;

  1516. 

  1517.                 CARLA_ASSERT_INT2(event.time >= timeOffset, event.time, timeOffset);

  1518. 

  1519.                 if (event.time > timeOffset && sampleAccurate)

  1520.                 {

  1521.                     if (processSingle(audioIn, audioOut, cvIn, cvOut, event.time - timeOffset, timeOffset))

  1522.                     {

  1523.                         startTime  = 0;

  1524.                         timeOffset = event.time;

  1525. 

  1526.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1527.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1528.                         else

  1529.                             nextBankId = 0;

  1530. 

  1531.                         if (fMidiEventCount > 0)

  1532.                         {

  1533.                             carla_zeroStructs(fMidiEvents, fMidiEventCount);

  1534.                             fMidiEventCount = 0;

  1535.                         }

  1536.                     }

  1537.                     else

  1538.                         startTime += timeOffset;

  1539.                 }

  1540. 

  1541.                 // Control change

  1542.                 switch (event.type)

  1543.                 {

  1544.                 case kEngineEventTypeNull:

  1545.                     break;

  1546. 

  1547.                 case kEngineEventTypeControl: {

  1548.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1549. 

  1550.                     switch (ctrlEvent.type)

  1551.                     {

  1552.                     case kEngineControlEventTypeNull:

  1553.                         break;

  1554. 

  1555.                     case kEngineControlEventTypeParameter: {

  1556. #ifndef BUILD_BRIDGE

  1557.                         // Control backend stuff

  1558.                         if (event.channel == pData->ctrlChannel)

  1559.                         {

  1560.                             float value;

  1561. 

  1562.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) > 0)

  1563.                             {

  1564.                                 value = ctrlEvent.value;

  1565.                                 setDryWetRT(value);

  1566.                             }

  1567. 

  1568.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) > 0)

  1569.                             {

  1570.                                 value = ctrlEvent.value*127.0f/100.0f;

  1571.                                 setVolumeRT(value);

  1572.                             }

  1573. 

  1574.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) > 0)

  1575.                             {

  1576.                                 float left, right;

  1577.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1578. 

  1579.                                 if (value < 0.0f)

  1580.                                 {

  1581.                                     left  = -1.0f;

  1582.                                     right = (value*2.0f)+1.0f;

  1583.                                 }

  1584.                                 else if (value > 0.0f)

  1585.                                 {

  1586.                                     left  = (value*2.0f)-1.0f;

  1587.                                     right = 1.0f;

  1588.                                 }

  1589.                                 else

  1590.                                 {

  1591.                                     left  = -1.0f;

  1592.                                     right = 1.0f;

  1593.                                 }

  1594. 

  1595.                                 setBalanceLeftRT(left);

  1596.                                 setBalanceRightRT(right);

  1597.                             }

  1598.                         }

  1599. #endif

  1600.                         // Control plugin parameters

  1601.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1602.                         {

  1603.                             if (pData->param.data[k].midiChannel != event.channel)

  1604.                                 continue;

  1605.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1606.                                 continue;

  1607.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1608.                                 continue;

  1609.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1610.                                 continue;

  1611. 

  1612.                             float value;

  1613. 

  1614.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1615.                             {

  1616.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1617.                             }

  1618.                             else

  1619.                             {

  1620.                                 if (pData->param.data[k].hints & PARAMETER_IS_LOGARITHMIC)

  1621.                                     value = pData->param.ranges[k].getUnnormalizedLogValue(ctrlEvent.value);

  1622.                                 else

  1623.                                     value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1624. 

  1625.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1626.                                     value = std::rint(value);

  1627.                             }

  1628. 

  1629.                             setParameterValueRT(k, value);

  1630.                         }

  1631. 

  1632.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param < MAX_MIDI_CONTROL)

  1633.                         {

  1634.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1635.                                 continue;

  1636. 

  1637.                             NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1638.                             carla_zeroStruct(nativeEvent);

  1639. 

  1640.                             nativeEvent.time    = sampleAccurate ? startTime : event.time;

  1641.                             nativeEvent.data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (event.channel & MIDI_CHANNEL_BIT));

  1642.                             nativeEvent.data[1] = uint8_t(ctrlEvent.param);

  1643.                             nativeEvent.data[2] = uint8_t(ctrlEvent.value*127.0f);

  1644.                             nativeEvent.size    = 3;

  1645.                         }

  1646. 

  1647.                         break;

  1648.                     } // case kEngineControlEventTypeParameter

  1649. 

  1650.                     case kEngineControlEventTypeMidiBank:

  1651.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1652.                         {

  1653.                             if (event.channel == pData->ctrlChannel)

  1654.                                 nextBankId = ctrlEvent.param;

  1655.                         }

  1656.                         else if (pData->options & PLUGIN_OPTION_SEND_PROGRAM_CHANGES)

  1657.                         {

  1658.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1659.                                 continue;

  1660. 

  1661.                             NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1662.                             carla_zeroStruct(nativeEvent);

  1663. 

  1664.                             nativeEvent.time    = sampleAccurate ? startTime : event.time;

  1665.                             nativeEvent.data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (event.channel & MIDI_CHANNEL_BIT));

  1666.                             nativeEvent.data[1] = MIDI_CONTROL_BANK_SELECT;

  1667.                             nativeEvent.data[2] = uint8_t(ctrlEvent.param);

  1668.                             nativeEvent.size    = 3;

  1669.                         }

  1670.                         break;

  1671. 

  1672.                     case kEngineControlEventTypeMidiProgram:

  1673.                         if (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES)

  1674.                         {

  1675.                             if (event.channel < MAX_MIDI_CHANNELS)

  1676.                             {

  1677.                                 const uint32_t nextProgramId(ctrlEvent.param);

  1678. 

  1679.                                 for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1680.                                 {

  1681.                                     if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1682.                                     {

  1683.                                         fDescriptor->set_midi_program(fHandle, event.channel, nextBankId, nextProgramId);

  1684. 

  1685.                                         if (fHandle2 != nullptr)

  1686.                                             fDescriptor->set_midi_program(fHandle2, event.channel, nextBankId, nextProgramId);

  1687. 

  1688.                                         fCurMidiProgs[event.channel] = static_cast<int32_t>(k);

  1689. 

  1690.                                         if (event.channel == pData->ctrlChannel)

  1691.                                             pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, static_cast<int32_t>(k), 0, 0.0f);

  1692. 

  1693.                                         break;

  1694.                                     }

  1695.                                 }

  1696.                             }

  1697.                         }

  1698.                         else if (pData->options & PLUGIN_OPTION_SEND_PROGRAM_CHANGES)

  1699.                         {

  1700.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1701.                                 continue;

  1702. 

  1703.                             NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1704.                             carla_zeroStruct(nativeEvent);

  1705. 

  1706.                             nativeEvent.time    = sampleAccurate ? startTime : event.time;

  1707.                             nativeEvent.data[0] = uint8_t(MIDI_STATUS_PROGRAM_CHANGE | (event.channel & MIDI_CHANNEL_BIT));

  1708.                             nativeEvent.data[1] = uint8_t(ctrlEvent.param);

  1709.                             nativeEvent.size    = 2;

  1710.                         }

  1711.                         break;

  1712. 

  1713.                     case kEngineControlEventTypeAllSoundOff:

  1714.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1715.                         {

  1716.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1717.                                 continue;

  1718. 

  1719.                             NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1720.                             carla_zeroStruct(nativeEvent);

  1721. 

  1722.                             nativeEvent.time    = sampleAccurate ? startTime : event.time;

  1723.                             nativeEvent.data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (event.channel & MIDI_CHANNEL_BIT));

  1724.                             nativeEvent.data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1725.                             nativeEvent.data[2] = 0;

  1726.                             nativeEvent.size    = 3;

  1727.                         }

  1728.                         break;

  1729. 

  1730.                     case kEngineControlEventTypeAllNotesOff:

  1731.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1732.                         {

  1733. #ifndef BUILD_BRIDGE

  1734.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1735.                             {

  1736.                                 allNotesOffSent = true;

  1737.                                 sendMidiAllNotesOffToCallback();

  1738.                             }

  1739. #endif

  1740. 

  1741.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1742.                                 continue;

  1743. 

  1744.                             NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1745.                             carla_zeroStruct(nativeEvent);

  1746. 

  1747.                             nativeEvent.time    = sampleAccurate ? startTime : event.time;

  1748.                             nativeEvent.data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (event.channel & MIDI_CHANNEL_BIT));

  1749.                             nativeEvent.data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1750.                             nativeEvent.data[2] = 0;

  1751.                             nativeEvent.size    = 3;

  1752.                         }

  1753.                         break;

  1754.                     }

  1755.                     break;

  1756.                 }

  1757. 

  1758.                 case kEngineEventTypeMidi: {

  1759.                     if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1760.                         continue;

  1761. 

  1762.                     const EngineMidiEvent& midiEvent(event.midi);

  1763. 

  1764.                     if (midiEvent.size > 4)

  1765.                         continue;

  1766. #ifdef CARLA_PROPER_CPP11_SUPPORT

  1767.                     static_assert(4 <= EngineMidiEvent::kDataSize, "Incorrect data");

  1768. #endif

  1769. 

  1770.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1771. 

  1772.                     if (status == MIDI_STATUS_CHANNEL_PRESSURE && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1773.                         continue;

  1774.                     if (status == MIDI_STATUS_CONTROL_CHANGE && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1775.                         continue;

  1776.                     if (status == MIDI_STATUS_POLYPHONIC_AFTERTOUCH && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1777.                         continue;

  1778.                     if (status == MIDI_STATUS_PITCH_WHEEL_CONTROL && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1779.                         continue;

  1780. 

  1781.                     // Fix bad note-off

  1782.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1783.                         status = MIDI_STATUS_NOTE_OFF;

  1784. 

  1785.                     NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1786.                     carla_zeroStruct(nativeEvent);

  1787. 

  1788.                     nativeEvent.port = midiEvent.port;

  1789.                     nativeEvent.time = sampleAccurate ? startTime : event.time;

  1790.                     nativeEvent.size = midiEvent.size;

  1791. 

  1792.                     nativeEvent.data[0] = uint8_t(status | (event.channel & MIDI_CHANNEL_BIT));

  1793.                     nativeEvent.data[1] = midiEvent.size >= 2 ? midiEvent.data[1] : 0;

  1794.                     nativeEvent.data[2] = midiEvent.size >= 3 ? midiEvent.data[2] : 0;

  1795.                     nativeEvent.data[3] = midiEvent.size == 4 ? midiEvent.data[3] : 0;

  1796. 

  1797.                     if (status == MIDI_STATUS_NOTE_ON)

  1798.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, midiEvent.data[1], midiEvent.data[2]);

  1799.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1800.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, midiEvent.data[1], 0.0f);

  1801.                 } break;

  1802.                 } // switch (event.type)

  1803.             }

  1804. 

  1805.             pData->postRtEvents.trySplice();

  1806. 

  1807.             if (frames > timeOffset)

  1808.                 processSingle(audioIn, audioOut, cvIn, cvOut, frames - timeOffset, timeOffset);

  1809. 

  1810.             } // eventPort

  1811. 

  1812.         } // End of Event Input and Processing

  1813. 

  1814.         // --------------------------------------------------------------------------------------------------------

  1815.         // Plugin processing (no events)

  1816. 

  1817.         else

  1818.         {

  1819.             processSingle(audioIn, audioOut, cvIn, cvOut, frames, 0);

  1820. 

  1821.         } // End of Plugin processing (no events)

  1822. 

  1823.         // --------------------------------------------------------------------------------------------------------

  1824.         // Control and MIDI Output

  1825. 

  1826.         if (pData->event.portOut != nullptr)

  1827.         {

  1828. #ifndef BUILD_BRIDGE

  1829.             float value, curValue;

  1830. 

  1831.             for (uint32_t k=0; k < pData->param.count; ++k)

  1832.             {

  1833.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1834.                     continue;

  1835. 

  1836.                 curValue = fDescriptor->get_parameter_value(fHandle, k);

  1837.                 pData->param.ranges[k].fixValue(curValue);

  1838. 

  1839.                 if (pData->param.data[k].midiCC > 0)

  1840.                 {

  1841.                     value = pData->param.ranges[k].getNormalizedValue(curValue);

  1842.                     pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), value);

  1843.                 }

  1844.             }

  1845. #endif

  1846. 

  1847.             // reverse lookup MIDI events

  1848.             for (uint32_t k = (kPluginMaxMidiEvents*2)-1; k >= fMidiEventCount; --k)

  1849.             {

  1850.                 if (fMidiEvents[k].data[0] == 0)

  1851.                     break;

  1852. 

  1853.                 const uint8_t channel = uint8_t(MIDI_GET_CHANNEL_FROM_DATA(fMidiEvents[k].data));

  1854.                 const uint8_t port    = fMidiEvents[k].port;

  1855. 

  1856.                 if (fMidiOut.count > 1 && port < fMidiOut.count)

  1857.                     fMidiOut.ports[port]->writeMidiEvent(fMidiEvents[k].time, channel, fMidiEvents[k].size, fMidiEvents[k].data);

  1858.                 else

  1859.                     pData->event.portOut->writeMidiEvent(fMidiEvents[k].time, channel, fMidiEvents[k].size, fMidiEvents[k].data);

  1860.             }

  1861. 

  1862.         } // End of Control and MIDI Output

  1863.     }

  1864. 

  1865.     bool processSingle(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames, const uint32_t timeOffset)

  1866.     {

  1867.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1868. 

  1869.         if (pData->audioIn.count > 0)

  1870.         {

  1871.             CARLA_SAFE_ASSERT_RETURN(audioIn != nullptr, false);

  1872.         }

  1873.         if (pData->audioOut.count > 0)

  1874.         {

  1875.             CARLA_SAFE_ASSERT_RETURN(audioOut != nullptr, false);

  1876.         }

  1877.         if (pData->cvIn.count > 0)

  1878.         {

  1879.             CARLA_SAFE_ASSERT_RETURN(cvIn != nullptr, false);

  1880.         }

  1881.         if (pData->cvOut.count > 0)

  1882.         {

  1883.             CARLA_SAFE_ASSERT_RETURN(cvOut != nullptr, false);

  1884.         }

  1885. 

  1886.         // --------------------------------------------------------------------------------------------------------

  1887.         // Try lock, silence otherwise

  1888. 

  1889.         if (fIsOffline)

  1890.         {

  1891.             pData->singleMutex.lock();

  1892.         }

  1893.         else if (! pData->singleMutex.tryLock())

  1894.         {

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

  1896.             {

  1897.                 for (uint32_t k=0; k < frames; ++k)

  1898.                     audioOut[i][k+timeOffset] = 0.0f;

  1899.             }

  1900.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1901.             {

  1902.                 for (uint32_t k=0; k < frames; ++k)

  1903.                     cvOut[i][k+timeOffset] = 0.0f;

  1904.             }

  1905. 

  1906.             return false;

  1907.         }

  1908. 

  1909.         // --------------------------------------------------------------------------------------------------------

  1910.         // Set audio buffers

  1911. 

  1912.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1913.             carla_copyFloats(fAudioInBuffers[i], audioIn[i]+timeOffset, frames);

  1914. 

  1915.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1916.             carla_zeroFloats(fAudioOutBuffers[i], frames);

  1917. 

  1918. #if 0

  1919.         // --------------------------------------------------------------------------------------------------------

  1920.         // Set CV buffers

  1921. 

  1922.         for (uint32_t i=0; i < pData->cvIn.count; ++i)

  1923.             carla_copyFloats(fCvInBuffers[i], cvIn[i]+timeOffset, frames);

  1924. 

  1925.         for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1926.             carla_zeroFloats(fCvOutBuffers[i], frames);

  1927. #endif

  1928. 

  1929.         // --------------------------------------------------------------------------------------------------------

  1930.         // Run plugin

  1931. 

  1932.         fIsProcessing = true;

  1933. 

  1934.         if (fHandle2 == nullptr)

  1935.         {

  1936.             fDescriptor->process(fHandle, fAudioInBuffers, fAudioOutBuffers, frames, fMidiEvents, fMidiEventCount);

  1937.         }

  1938.         else

  1939.         {

  1940.             fDescriptor->process(fHandle,

  1941.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[0] : nullptr,

  1942.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[0] : nullptr,

  1943.                                  frames, fMidiEvents, fMidiEventCount);

  1944. 

  1945.             fDescriptor->process(fHandle2,

  1946.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[1] : nullptr,

  1947.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[1] : nullptr,

  1948.                                  frames, fMidiEvents, fMidiEventCount);

  1949.         }

  1950. 

  1951.         fIsProcessing = false;

  1952.         fTimeInfo.frame += frames;

  1953. 

  1954. #ifndef BUILD_BRIDGE

  1955.         // --------------------------------------------------------------------------------------------------------

  1956.         // Post-processing (dry/wet, volume and balance)

  1957. 

  1958.         {

  1959.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && carla_isNotEqual(pData->postProc.dryWet, 1.0f);

  1960.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_isEqual(pData->postProc.balanceLeft, -1.0f) && carla_isEqual(pData->postProc.balanceRight, 1.0f));

  1961. 

  1962.             bool isPair;

  1963.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1964. 

  1965.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1966.             {

  1967.                 // Dry/Wet

  1968.                 if (doDryWet)

  1969.                 {

  1970.                     for (uint32_t k=0; k < frames; ++k)

  1971.                     {

  1972.                         bufValue = fAudioInBuffers[(pData->audioIn.count == 1) ? 0 : i][k];

  1973.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1974.                     }

  1975.                 }

  1976. 

  1977.                 // Balance

  1978.                 if (doBalance)

  1979.                 {

  1980.                     isPair = (i % 2 == 0);

  1981. 

  1982.                     if (isPair)

  1983.                     {

  1984.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1985.                         carla_copyFloats(oldBufLeft, fAudioOutBuffers[i], frames);

  1986.                     }

  1987. 

  1988.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1989.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1990. 

  1991.                     for (uint32_t k=0; k < frames; ++k)

  1992.                     {

  1993.                         if (isPair)

  1994.                         {

  1995.                             // left

  1996.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1997.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1998.                         }

  1999.                         else

  2000.                         {

  2001.                             // right

  2002.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  2003.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  2004.                         }

  2005.                     }

  2006.                 }

  2007. 

  2008.                 // Volume (and buffer copy)

  2009.                 {

  2010.                     for (uint32_t k=0; k < frames; ++k)

  2011.                         audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  2012.                 }

  2013.             }

  2014. 

  2015.         } // End of Post-processing

  2016. #else

  2017.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  2018.         {

  2019.             for (uint32_t k=0; k < frames; ++k)

  2020.                 audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k];

  2021.         }

  2022. #endif

  2023. 

  2024. #if 0

  2025.         for (uint32_t i=0; i < pData->cvOut.count; ++i)

  2026.         {

  2027.             for (uint32_t k=0; k < frames; ++k)

  2028.                 cvOut[i][k+timeOffset] = fCvOutBuffers[i][k];

  2029.         }

  2030. #endif

  2031. 

  2032.         // --------------------------------------------------------------------------------------------------------

  2033. 

  2034.         pData->singleMutex.unlock();

  2035.         return true;

  2036.     }

  2037. 

  2038.     void bufferSizeChanged(const uint32_t newBufferSize) override

  2039.     {

  2040.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  2041.         carla_debug("CarlaPluginNative::bufferSizeChanged(%i)", newBufferSize);

  2042. 

  2043.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  2044.         {

  2045.             if (fAudioInBuffers[i] != nullptr)

  2046.                 delete[] fAudioInBuffers[i];

  2047.             fAudioInBuffers[i] = new float[newBufferSize];

  2048.         }

  2049. 

  2050.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  2051.         {

  2052.             if (fAudioOutBuffers[i] != nullptr)

  2053.                 delete[] fAudioOutBuffers[i];

  2054.             fAudioOutBuffers[i] = new float[newBufferSize];

  2055.         }

  2056. 

  2057.         if (fCurBufferSize == newBufferSize)

  2058.             return;

  2059. 

  2060.         fCurBufferSize = newBufferSize;

  2061. 

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

  2063.         {

  2064.             fDescriptor->dispatcher(fHandle, NATIVE_PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, static_cast<intptr_t>(newBufferSize), nullptr, 0.0f);

  2065. 

  2066.             if (fHandle2 != nullptr)

  2067.                 fDescriptor->dispatcher(fHandle2, NATIVE_PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, static_cast<intptr_t>(newBufferSize), nullptr, 0.0f);

  2068.         }

  2069.     }

  2070. 

  2071.     void sampleRateChanged(const double newSampleRate) override

  2072.     {

  2073.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  2074.         carla_debug("CarlaPluginNative::sampleRateChanged(%g)", newSampleRate);

  2075. 

  2076.         if (carla_isEqual(fCurSampleRate, newSampleRate))

  2077.             return;

  2078. 

  2079.         fCurSampleRate = newSampleRate;

  2080. 

  2081.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  2082.         {

  2083.             fDescriptor->dispatcher(fHandle, NATIVE_PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  2084. 

  2085.             if (fHandle2 != nullptr)

  2086.                 fDescriptor->dispatcher(fHandle2, NATIVE_PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  2087.         }

  2088.     }

  2089. 

  2090.     void offlineModeChanged(const bool isOffline) override

  2091.     {

  2092.         if (fIsOffline == isOffline)

  2093.             return;

  2094. 

  2095.         fIsOffline = isOffline;

  2096. 

  2097.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  2098.         {

  2099.             fDescriptor->dispatcher(fHandle, NATIVE_PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  2100. 

  2101.             if (fHandle2 != nullptr)

  2102.                 fDescriptor->dispatcher(fHandle2, NATIVE_PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  2103.         }

  2104.     }

  2105. 

  2106.     // -------------------------------------------------------------------

  2107.     // Plugin buffers

  2108. 

  2109.     void initBuffers() const noexcept override

  2110.     {

  2111.         fMidiIn.initBuffers();

  2112.         fMidiOut.initBuffers();

  2113. 

  2114.         CarlaPlugin::initBuffers();

  2115.     }

  2116. 

  2117.     void clearBuffers() noexcept override

  2118.     {

  2119.         carla_debug("CarlaPluginNative::clearBuffers() - start");

  2120. 

  2121.         if (fAudioInBuffers != nullptr)

  2122.         {

  2123.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  2124.             {

  2125.                 if (fAudioInBuffers[i] != nullptr)

  2126.                 {

  2127.                     delete[] fAudioInBuffers[i];

  2128.                     fAudioInBuffers[i] = nullptr;

  2129.                 }

  2130.             }

  2131. 

  2132.             delete[] fAudioInBuffers;

  2133.             fAudioInBuffers = nullptr;

  2134.         }

  2135. 

  2136.         if (fAudioOutBuffers != nullptr)

  2137.         {

  2138.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  2139.             {

  2140.                 if (fAudioOutBuffers[i] != nullptr)

  2141.                 {

  2142.                     delete[] fAudioOutBuffers[i];

  2143.                     fAudioOutBuffers[i] = nullptr;

  2144.                 }

  2145.             }

  2146. 

  2147.             delete[] fAudioOutBuffers;

  2148.             fAudioOutBuffers = nullptr;

  2149.         }

  2150. 

  2151.         if (fMidiIn.count > 1)

  2152.             pData->event.portIn = nullptr;

  2153. 

  2154.         if (fMidiOut.count > 1)

  2155.             pData->event.portOut = nullptr;

  2156. 

  2157.         fMidiIn.clear();

  2158.         fMidiOut.clear();

  2159. 

  2160.         CarlaPlugin::clearBuffers();

  2161. 

  2162.         carla_debug("CarlaPluginNative::clearBuffers() - end");

  2163.     }

  2164. 

  2165.     // -------------------------------------------------------------------

  2166.     // Post-poned UI Stuff

  2167. 

  2168.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  2169.     {

  2170.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2171.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2172.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  2173. 

  2174.         if (! fIsUiVisible)

  2175.             return;

  2176. 

  2177.         if (fDescriptor->ui_set_parameter_value != nullptr)

  2178.             fDescriptor->ui_set_parameter_value(fHandle, index, value);

  2179.     }

  2180. 

  2181.     void uiMidiProgramChange(const uint32_t index) noexcept override

  2182.     {

  2183.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2184.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2185.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  2186. 

  2187.         if (! fIsUiVisible)

  2188.             return;

  2189.         if (index >= pData->midiprog.count)

  2190.             return;

  2191. 

  2192.         if (fDescriptor->ui_set_midi_program != nullptr)

  2193.             fDescriptor->ui_set_midi_program(fHandle, 0, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  2194.     }

  2195. 

  2196.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  2197.     {

  2198.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2199.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2200.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  2201.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2202.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  2203. 

  2204.         if (! fIsUiVisible)

  2205.             return;

  2206. 

  2207.         // TODO

  2208.     }

  2209. 

  2210.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  2211.     {

  2212.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2213.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2214.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  2215.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2216. 

  2217.         if (! fIsUiVisible)

  2218.             return;

  2219.         if (fDescriptor == nullptr || fHandle == nullptr)

  2220.             return;

  2221. 

  2222.         // TODO

  2223.     }

  2224. 

  2225.     // -------------------------------------------------------------------

  2226. 

  2227. protected:

  2228.     const NativeTimeInfo* handleGetTimeInfo() const noexcept

  2229.     {

  2230.         CARLA_SAFE_ASSERT_RETURN(fIsProcessing, nullptr);

  2231. 

  2232.         return &fTimeInfo;

  2233.     }

  2234. 

  2235.     bool handleWriteMidiEvent(const NativeMidiEvent* const event)

  2236.     {

  2237.         CARLA_SAFE_ASSERT_RETURN(pData->enabled, false);

  2238.         CARLA_SAFE_ASSERT_RETURN(fIsProcessing, false);

  2239.         CARLA_SAFE_ASSERT_RETURN(fMidiOut.count > 0 || pData->event.portOut != nullptr, false);

  2240.         CARLA_SAFE_ASSERT_RETURN(event != nullptr, false);

  2241.         CARLA_SAFE_ASSERT_RETURN(event->data[0] != 0, false);

  2242. 

  2243.         // reverse-find first free event, and put it there

  2244.         for (uint32_t i=(kPluginMaxMidiEvents*2)-1; i >= fMidiEventCount; --i)

  2245.         {

  2246.             if (fMidiEvents[i].data[0] != 0)

  2247.                 continue;

  2248. 

  2249.             std::memcpy(&fMidiEvents[i], event, sizeof(NativeMidiEvent));

  2250.             return true;

  2251.         }

  2252. 

  2253.         carla_stdout("CarlaPluginNative::handleWriteMidiEvent(%p) - buffer full", event);

  2254.         return false;

  2255.     }

  2256. 

  2257.     void handleUiParameterChanged(const uint32_t index, const float value)

  2258.     {

  2259.         setParameterValue(index, value, false, true, true);

  2260.     }

  2261. 

  2262.     void handleUiCustomDataChanged(const char* const key, const char* const value)

  2263.     {

  2264.         setCustomData(CUSTOM_DATA_TYPE_STRING, key, value, false);

  2265.     }

  2266. 

  2267.     void handleUiClosed()

  2268.     {

  2269.         pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2270.         fIsUiVisible = false;

  2271.     }

  2272. 

  2273.     const char* handleUiOpenFile(const bool isDir, const char* const title, const char* const filter)

  2274.     {

  2275.         return pData->engine->runFileCallback(FILE_CALLBACK_OPEN, isDir, title, filter);

  2276.     }

  2277. 

  2278.     const char* handleUiSaveFile(const bool isDir, const char* const title, const char* const filter)

  2279.     {

  2280.         return pData->engine->runFileCallback(FILE_CALLBACK_SAVE, isDir, title, filter);

  2281.     }

  2282. 

  2283.     intptr_t handleDispatcher(const NativeHostDispatcherOpcode opcode, const int32_t index, const intptr_t value, void* const ptr, const float opt)

  2284.     {

  2285.         carla_debug("CarlaPluginNative::handleDispatcher(%i, %i, " P_INTPTR ", %p, %f)", opcode, index, value, ptr, opt);

  2286. 

  2287.         intptr_t ret = 0;

  2288. 

  2289.         switch (opcode)

  2290.         {

  2291.         case NATIVE_HOST_OPCODE_NULL:

  2292.             break;

  2293.         case NATIVE_HOST_OPCODE_UPDATE_PARAMETER:

  2294.             // TODO

  2295.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2296.             break;

  2297.         case NATIVE_HOST_OPCODE_UPDATE_MIDI_PROGRAM:

  2298.             // TODO

  2299.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2300.             break;

  2301.         case NATIVE_HOST_OPCODE_RELOAD_PARAMETERS:

  2302.             reload(); // FIXME

  2303.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PARAMETERS, pData->id, -1, 0, 0.0f, nullptr);

  2304.             break;

  2305.         case NATIVE_HOST_OPCODE_RELOAD_MIDI_PROGRAMS:

  2306.             reloadPrograms(false);

  2307.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, -1, 0, 0.0f, nullptr);

  2308.             break;

  2309.         case NATIVE_HOST_OPCODE_RELOAD_ALL:

  2310.             reload();

  2311.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_ALL, pData->id, -1, 0, 0.0f, nullptr);

  2312.             break;

  2313.         case NATIVE_HOST_OPCODE_UI_UNAVAILABLE:

  2314.             pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, -1, 0, 0.0f, nullptr);

  2315.             fIsUiAvailable = false;

  2316.             break;

  2317.         case NATIVE_HOST_OPCODE_HOST_IDLE:

  2318.             pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0.0f, nullptr);

  2319.             break;

  2320.         case NATIVE_HOST_OPCODE_INTERNAL_PLUGIN:

  2321.             ret = 1;

  2322.             break;

  2323.         }

  2324. 

  2325.         return ret;

  2326. 

  2327.         // unused for now

  2328.         (void)index;

  2329.         (void)value;

  2330.         (void)ptr;

  2331.         (void)opt;

  2332.     }

  2333. 

  2334.     // -------------------------------------------------------------------

  2335. 

  2336. public:

  2337.     void* getNativeHandle() const noexcept override

  2338.     {

  2339.         return fHandle;

  2340.     }

  2341. 

  2342.     const void* getNativeDescriptor() const noexcept override

  2343.     {

  2344.         return fDescriptor;

  2345.     }

  2346. 

  2347.     // -------------------------------------------------------------------

  2348. 

  2349.     bool init(const char* const name, const char* const label, const uint options)

  2350.     {

  2351.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2352. 

  2353.         // ---------------------------------------------------------------

  2354.         // first checks

  2355. 

  2356.         if (pData->client != nullptr)

  2357.         {

  2358.             pData->engine->setLastError("Plugin client is already registered");

  2359.             return false;

  2360.         }

  2361. 

  2362.         if (label == nullptr && label[0] != '\0')

  2363.         {

  2364.             pData->engine->setLastError("null label");

  2365.             return false;

  2366.         }

  2367. 

  2368.         // ---------------------------------------------------------------

  2369.         // get descriptor that matches label

  2370. 

  2371.         sPluginInitializer.initIfNeeded();

  2372. 

  2373.         for (LinkedList<const NativePluginDescriptor*>::Itenerator it = gPluginDescriptors.begin2(); it.valid(); it.next())

  2374.         {

  2375.             fDescriptor = it.getValue(nullptr);

  2376.             CARLA_SAFE_ASSERT_BREAK(fDescriptor != nullptr);

  2377. 

  2378.             carla_debug("Check vs \"%s\"", fDescriptor->label);

  2379. 

  2380.             if (fDescriptor->label != nullptr && std::strcmp(fDescriptor->label, label) == 0)

  2381.                 break;

  2382. 

  2383.             fDescriptor = nullptr;

  2384.         }

  2385. 

  2386.         if (fDescriptor == nullptr)

  2387.         {

  2388.             pData->engine->setLastError("Invalid internal plugin");

  2389.             return false;

  2390.         }

  2391. 

  2392.         // ---------------------------------------------------------------

  2393.         // set icon

  2394. 

  2395.         if (std::strcmp(fDescriptor->label, "audiofile") == 0)

  2396.             pData->iconName = carla_strdup_safe("file");

  2397.         else if (std::strcmp(fDescriptor->label, "midifile") == 0)

  2398.             pData->iconName = carla_strdup_safe("file");

  2399. 

  2400.         // ---------------------------------------------------------------

  2401.         // get info

  2402. 

  2403.         if (name != nullptr && name[0] != '\0')

  2404.             pData->name = pData->engine->getUniquePluginName(name);

  2405.         else if (fDescriptor->name != nullptr && fDescriptor->name[0] != '\0')

  2406.             pData->name = pData->engine->getUniquePluginName(fDescriptor->name);

  2407.         else

  2408.             pData->name = pData->engine->getUniquePluginName(label);

  2409. 

  2410.         {

  2411.             CARLA_ASSERT(fHost.uiName == nullptr);

  2412. 

  2413.             char uiName[std::strlen(pData->name)+6+1];

  2414.             std::strcpy(uiName, pData->name);

  2415.             std::strcat(uiName, " (GUI)");

  2416. 

  2417.             fHost.uiName = carla_strdup(uiName);

  2418.         }

  2419. 

  2420.         // ---------------------------------------------------------------

  2421.         // register client

  2422. 

  2423.         pData->client = pData->engine->addClient(this);

  2424. 

  2425.         if (pData->client == nullptr || ! pData->client->isOk())

  2426.         {

  2427.             pData->engine->setLastError("Failed to register plugin client");

  2428.             return false;

  2429.         }

  2430. 

  2431.         // ---------------------------------------------------------------

  2432.         // initialize plugin

  2433. 

  2434.         fHandle = fDescriptor->instantiate(&fHost);

  2435. 

  2436.         if (fHandle == nullptr)

  2437.         {

  2438.             pData->engine->setLastError("Plugin failed to initialize");

  2439.             return false;

  2440.         }

  2441. 

  2442.         // ---------------------------------------------------------------

  2443.         // set default options

  2444. 

  2445.         bool hasMidiProgs = false;

  2446. 

  2447.         if (fDescriptor->get_midi_program_count != nullptr)

  2448.         {

  2449.             try {

  2450.                 hasMidiProgs = fDescriptor->get_midi_program_count(fHandle) > 0;

  2451.             } catch (...) {}

  2452.         }

  2453. 

  2454.         pData->options = 0x0;

  2455. 

  2456.         if (fDescriptor->midiOuts != 0 || (fDescriptor->hints & NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS) != 0)

  2457.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2458.          else if (options & PLUGIN_OPTION_FIXED_BUFFERS)

  2459.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2460. 

  2461.         if (pData->engine->getOptions().forceStereo)

  2462.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2463.         else if (options & PLUGIN_OPTION_FORCE_STEREO)

  2464.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2465. 

  2466.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_CHANNEL_PRESSURE)

  2467.             pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  2468.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_NOTE_AFTERTOUCH)

  2469.             pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  2470.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_PITCHBEND)

  2471.             pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  2472.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_ALL_SOUND_OFF)

  2473.             pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  2474. 

  2475.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_CONTROL_CHANGES)

  2476.         {

  2477.             if (options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  2478.                 pData->options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  2479.         }

  2480. 

  2481.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_PROGRAM_CHANGES)

  2482.         {

  2483.             CARLA_SAFE_ASSERT(! hasMidiProgs);

  2484.             pData->options |= PLUGIN_OPTION_SEND_PROGRAM_CHANGES;

  2485.         }

  2486.         else if (hasMidiProgs)

  2487.             pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  2488. 

  2489.         return true;

  2490.     }

  2491. 

  2492. 

  2493. private:

  2494.     NativePluginHandle   fHandle;

  2495.     NativePluginHandle   fHandle2;

  2496.     NativeHostDescriptor fHost;

  2497.     const NativePluginDescriptor* fDescriptor;

  2498. 

  2499.     bool fIsProcessing;

  2500.     bool fIsOffline;

  2501.     bool fIsUiAvailable;

  2502.     bool fIsUiVisible;

  2503. 

  2504.     float**         fAudioInBuffers;

  2505.     float**         fAudioOutBuffers;

  2506.     uint32_t        fMidiEventCount;

  2507.     NativeMidiEvent fMidiEvents[kPluginMaxMidiEvents*2];

  2508. 

  2509.     int32_t  fCurMidiProgs[MAX_MIDI_CHANNELS];

  2510.     uint32_t fCurBufferSize;

  2511.     double   fCurSampleRate;

  2512. 

  2513.     NativePluginMidiData fMidiIn;

  2514.     NativePluginMidiData fMidiOut;

  2515. 

  2516.     NativeTimeInfo fTimeInfo;

  2517. 

  2518.     // -------------------------------------------------------------------

  2519. 

  2520.     #define handlePtr ((CarlaPluginNative*)handle)

  2521. 

  2522.     static uint32_t carla_host_get_buffer_size(NativeHostHandle handle) noexcept

  2523.     {

  2524.         return handlePtr->fCurBufferSize;

  2525.     }

  2526. 

  2527.     static double carla_host_get_sample_rate(NativeHostHandle handle) noexcept

  2528.     {

  2529.         return handlePtr->fCurSampleRate;

  2530.     }

  2531. 

  2532.     static bool carla_host_is_offline(NativeHostHandle handle) noexcept

  2533.     {

  2534.         return handlePtr->fIsOffline;

  2535.     }

  2536. 

  2537.     static const NativeTimeInfo* carla_host_get_time_info(NativeHostHandle handle) noexcept

  2538.     {

  2539.         return handlePtr->handleGetTimeInfo();

  2540.     }

  2541. 

  2542.     static bool carla_host_write_midi_event(NativeHostHandle handle, const NativeMidiEvent* event)

  2543.     {

  2544.         return handlePtr->handleWriteMidiEvent(event);

  2545.     }

  2546. 

  2547.     static void carla_host_ui_parameter_changed(NativeHostHandle handle, uint32_t index, float value)

  2548.     {

  2549.         handlePtr->handleUiParameterChanged(index, value);

  2550.     }

  2551. 

  2552.     static void carla_host_ui_custom_data_changed(NativeHostHandle handle, const char* key, const char* value)

  2553.     {

  2554.         handlePtr->handleUiCustomDataChanged(key, value);

  2555.     }

  2556. 

  2557.     static void carla_host_ui_closed(NativeHostHandle handle)

  2558.     {

  2559.         handlePtr->handleUiClosed();

  2560.     }

  2561. 

  2562.     static const char* carla_host_ui_open_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2563.     {

  2564.         return handlePtr->handleUiOpenFile(isDir, title, filter);

  2565.     }

  2566. 

  2567.     static const char* carla_host_ui_save_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2568.     {

  2569.         return handlePtr->handleUiSaveFile(isDir, title, filter);

  2570.     }

  2571. 

  2572.     static intptr_t carla_host_dispatcher(NativeHostHandle handle, NativeHostDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  2573.     {

  2574.         return handlePtr->handleDispatcher(opcode, index, value, ptr, opt);

  2575.     }

  2576. 

  2577.     #undef handlePtr

  2578. 

  2579.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginNative)

  2580. };

  2581. 

  2582. // -----------------------------------------------------------------------

  2583. 

  2584. CarlaPlugin* CarlaPlugin::newNative(const Initializer& init)

  2585. {

  2586.     carla_debug("CarlaPlugin::newNative({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "})", init.engine, init.filename, init.name, init.label, init.uniqueId);

  2587. 

  2588.     CarlaPluginNative* const plugin(new CarlaPluginNative(init.engine, init.id));

  2589. 

  2590.     if (! plugin->init(init.name, init.label, init.options))

  2591.     {

  2592.         delete plugin;

  2593.         return nullptr;

  2594.     }

  2595. 

  2596.     return plugin;

  2597. }

  2598. 

  2599. // -----------------------------------------------------------------------

  2600. 

  2601. CARLA_BACKEND_END_NAMESPACE