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

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  1. /*

  2.  * Carla Native Plugin

  3.  * Copyright (C) 2012-2014 Filipe Coelho <falktx@falktx.com>

  4.  *

  5.  * This program is free software; you can redistribute it and/or

  6.  * modify it under the terms of the GNU General Public License as

  7.  * published by the Free Software Foundation; either version 2 of

  8.  * the License, or any later version.

  9.  *

  10.  * This program is distributed in the hope that it will be useful,

  11.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  12.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  13.  * GNU General Public License for more details.

  14.  *

  15.  * For a full copy of the GNU General Public License see the doc/GPL.txt file.

  16.  */

  17. 

  18. #include "CarlaPluginInternal.hpp"

  19. #include "CarlaEngine.hpp"

  20. 

  21. #include "CarlaMathUtils.hpp"

  22. #include "CarlaNative.h"

  23. 

  24. #include "juce_core.h"

  25. 

  26. using juce::String;

  27. using juce::StringArray;

  28. 

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

  30. 

  31. CARLA_EXTERN_C

  32. std::size_t carla_getNativePluginCount();

  33. 

  34. CARLA_EXTERN_C

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

  36. 

  37. // -----------------------------------------------------------------------

  38. 

  39. static LinkedList<const NativePluginDescriptor*> gPluginDescriptors;

  40. 

  41. void carla_register_native_plugin(const NativePluginDescriptor* desc)

  42. {

  43.     gPluginDescriptors.append(desc);

  44. }

  45. 

  46. std::size_t carla_getNativePluginCount()

  47. {

  48.     return gPluginDescriptors.count();

  49. }

  50. 

  51. const NativePluginDescriptor* carla_getNativePluginDescriptor(const std::size_t index)

  52. {

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

  54. }

  55. 

  56. // -----------------------------------------------------

  57. 

  58. CARLA_BACKEND_START_NAMESPACE

  59. 

  60. // -----------------------------------------------------

  61. 

  62. struct NativePluginMidiData {

  63.     uint32_t  count;

  64.     uint32_t* indexes;

  65.     CarlaEngineEventPort** ports;

  66. 

  67.     NativePluginMidiData() noexcept

  68.         : count(0),

  69.           indexes(nullptr),

  70.           ports(nullptr) {}

  71. 

  72.     ~NativePluginMidiData() noexcept

  73.     {

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

  75.         CARLA_SAFE_ASSERT(indexes == nullptr);

  76.         CARLA_SAFE_ASSERT(ports == nullptr);

  77.     }

  78. 

  79.     void createNew(const uint32_t newCount)

  80.     {

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

  82.         CARLA_SAFE_ASSERT_RETURN(indexes == nullptr,);

  83.         CARLA_SAFE_ASSERT_RETURN(ports == nullptr,);

  84.         CARLA_SAFE_ASSERT_RETURN(newCount > 0,);

  85. 

  86.         indexes = new uint32_t[newCount];

  87.         ports   = new CarlaEngineEventPort*[newCount];

  88.         count   = newCount;

  89. 

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

  91.             indexes[i] = 0;

  92. 

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

  94.             ports[i] = nullptr;

  95.     }

  96. 

  97.     void clear() noexcept

  98.     {

  99.         if (ports != nullptr)

  100.         {

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

  102.             {

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

  104.                 {

  105.                     delete ports[i];

  106.                     ports[i] = nullptr;

  107.                 }

  108.             }

  109. 

  110.             delete[] ports;

  111.             ports = nullptr;

  112.         }

  113. 

  114.         if (indexes != nullptr)

  115.         {

  116.             delete[] indexes;

  117.             indexes = nullptr;

  118.         }

  119. 

  120.         count = 0;

  121.     }

  122. 

  123.     void initBuffers() const noexcept

  124.     {

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

  126.         {

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

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

  129.         }

  130.     }

  131. 

  132.     CARLA_DECLARE_NON_COPY_STRUCT(NativePluginMidiData)

  133. };

  134. 

  135. // -----------------------------------------------------

  136. 

  137. static const

  138. struct ScopedInitializer {

  139.     ScopedInitializer()

  140.     {

  141.         carla_register_all_plugins();

  142.     }

  143. 

  144.     ~ScopedInitializer() noexcept

  145.     {

  146.         gPluginDescriptors.clear();

  147.     }

  148. } _si;

  149. 

  150. // -----------------------------------------------------

  151. 

  152. class CarlaPluginNative : public CarlaPlugin

  153. {

  154. public:

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

  156.         : CarlaPlugin(engine, id),

  157.           fHandle(nullptr),

  158.           fHandle2(nullptr),

  159.           fHost(),

  160.           fDescriptor(nullptr),

  161.           fIsProcessing(false),

  162.           fIsUiVisible(false),

  163.           fAudioInBuffers(nullptr),

  164.           fAudioOutBuffers(nullptr),

  165.           fMidiEventCount(0),

  166.           fMidiIn(),

  167.           fMidiOut(),

  168.           fTimeInfo(),

  169.           leakDetector_CarlaPluginNative()

  170.     {

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

  172. 

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

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

  175.         carla_zeroStruct<NativeTimeInfo>(fTimeInfo);

  176. 

  177.         fHost.handle      = this;

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

  179.         fHost.uiName      = nullptr;

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

  181. 

  182.         fHost.get_buffer_size        = carla_host_get_buffer_size;

  183.         fHost.get_sample_rate        = carla_host_get_sample_rate;

  184.         fHost.is_offline             = carla_host_is_offline;

  185.         fHost.get_time_info          = carla_host_get_time_info;

  186.         fHost.write_midi_event       = carla_host_write_midi_event;

  187.         fHost.ui_parameter_changed   = carla_host_ui_parameter_changed;

  188.         fHost.ui_custom_data_changed = carla_host_ui_custom_data_changed;

  189.         fHost.ui_closed              = carla_host_ui_closed;

  190.         fHost.ui_open_file           = carla_host_ui_open_file;

  191.         fHost.ui_save_file           = carla_host_ui_save_file;

  192.         fHost.dispatcher             = carla_host_dispatcher;

  193.     }

  194. 

  195.     ~CarlaPluginNative() override

  196.     {

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

  198. 

  199.         // close UI

  200.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  201.         {

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

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

  204. 

  205.             pData->transientTryCounter = 0;

  206.         }

  207. 

  208.         pData->singleMutex.lock();

  209.         pData->masterMutex.lock();

  210. 

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

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

  213. 

  214.         CARLA_ASSERT(! fIsProcessing);

  215. 

  216.         if (pData->active)

  217.         {

  218.             deactivate();

  219.             pData->active = false;

  220.         }

  221. 

  222.         if (fDescriptor != nullptr)

  223.         {

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

  225.             {

  226.                 if (fHandle != nullptr)

  227.                     fDescriptor->cleanup(fHandle);

  228.                 if (fHandle2 != nullptr)

  229.                     fDescriptor->cleanup(fHandle2);

  230.             }

  231. 

  232.             fHandle  = nullptr;

  233.             fHandle2 = nullptr;

  234.             fDescriptor = nullptr;

  235.         }

  236. 

  237.         if (fHost.resourceDir != nullptr)

  238.         {

  239.             delete[] fHost.resourceDir;

  240.             fHost.resourceDir = nullptr;

  241.         }

  242. 

  243.         if (fHost.uiName != nullptr)

  244.         {

  245.             delete[] fHost.uiName;

  246.             fHost.uiName = nullptr;

  247.         }

  248. 

  249.         clearBuffers();

  250.     }

  251. 

  252.     // -------------------------------------------------------------------

  253.     // Information (base)

  254. 

  255.     PluginType getType() const noexcept override

  256.     {

  257.         return PLUGIN_INTERNAL;

  258.     }

  259. 

  260.     PluginCategory getCategory() const noexcept override

  261.     {

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

  263. 

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

  265.     }

  266. 

  267.     // -------------------------------------------------------------------

  268.     // Information (count)

  269. 

  270.     uint32_t getMidiInCount() const noexcept override

  271.     {

  272.         return fMidiIn.count;

  273.     }

  274. 

  275.     uint32_t getMidiOutCount() const noexcept override

  276.     {

  277.         return fMidiOut.count;

  278.     }

  279. 

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

  281.     {

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

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

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

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

  286. 

  287.         // FIXME - try

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

  289.             return param->scalePointCount;

  290. 

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

  292.         return 0;

  293.     }

  294. 

  295.     // -------------------------------------------------------------------

  296.     // Information (current data)

  297. 

  298.     // nothing

  299. 

  300.     // -------------------------------------------------------------------

  301.     // Information (per-plugin data)

  302. 

  303.     uint getOptionsAvailable() const noexcept override

  304.     {

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

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

  307. 

  308.         // FIXME - try

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

  310. 

  311.         uint options = 0x0;

  312. 

  313.         if (hasMidiProgs && (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_PROGRAM_CHANGES) == 0)

  314.             options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  315. 

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

  317.             options |= PLUGIN_OPTION_FIXED_BUFFERS;

  318. 

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

  320.         {

  321.             if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  322.                 options |= PLUGIN_OPTION_FORCE_STEREO;

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

  324.                 options |= PLUGIN_OPTION_FORCE_STEREO;

  325.         }

  326. 

  327.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_CONTROL_CHANGES)

  328.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  329.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_CHANNEL_PRESSURE)

  330.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  331.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_NOTE_AFTERTOUCH)

  332.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  333.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_PITCHBEND)

  334.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

  335.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_ALL_SOUND_OFF)

  336.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  337. 

  338.         return options;

  339.     }

  340. 

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

  342.     {

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

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

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

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

  347. 

  348.         // FIXME - try

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

  350.     }

  351. 

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

  353.     {

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

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

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

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

  358. 

  359.         // FIXME - try

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

  361.         {

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

  363. 

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

  365.             return scalePoint->value;

  366.         }

  367. 

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

  369.         return 0.0f;

  370.     }

  371. 

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

  373.     {

  374.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  375. 

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

  377.         {

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

  379.             return;

  380.         }

  381. 

  382.         CarlaPlugin::getLabel(strBuf);

  383.     }

  384. 

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

  386.     {

  387.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  388. 

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

  390.         {

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

  392.             return;

  393.         }

  394. 

  395.         CarlaPlugin::getMaker(strBuf);

  396.     }

  397. 

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

  399.     {

  400.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  401. 

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

  403.         {

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

  405.             return;

  406.         }

  407. 

  408.         CarlaPlugin::getCopyright(strBuf);

  409.     }

  410. 

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

  412.     {

  413.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  414. 

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

  416.         {

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

  418.             return;

  419.         }

  420. 

  421.         CarlaPlugin::getRealName(strBuf);

  422.     }

  423. 

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

  425.     {

  426.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  428.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  430. 

  431.         // FIXME - try

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

  433.         {

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

  435.             {

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

  437.                 return;

  438.             }

  439. 

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

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

  442.         }

  443. 

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

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

  446.     }

  447. 

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

  449.     {

  450.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

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

  453.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  455. 

  456.         // FIXME - try

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

  458.         {

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

  460.             return;

  461.         }

  462. 

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

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

  465.     }

  466. 

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

  468.     {

  469.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  471.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  473. 

  474.         // FIXME - try

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

  476.         {

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

  478.             {

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

  480.                 return;

  481.             }

  482. 

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

  484.         }

  485. 

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

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

  488.     }

  489. 

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

  491.     {

  492.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  494.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  496. 

  497.         // FIXME - try

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

  499.         {

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

  501. 

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

  503. 

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

  505.             {

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

  507.                 return;

  508.             }

  509. 

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

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

  512.         }

  513. 

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

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

  516.     }

  517. 

  518.     // -------------------------------------------------------------------

  519.     // Set data (state)

  520. 

  521.     void prepareForSave() override

  522.     {

  523.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  524.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  525. 

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

  527.         {

  528.             char strBuf[STR_MAX+1];

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

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

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

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

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

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

  535. 

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

  537.         }

  538. 

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

  540.             return;

  541. 

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

  543.         {

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

  545.             std::free(data);

  546.         }

  547.     }

  548. 

  549.     // -------------------------------------------------------------------

  550.     // Set data (internal stuff)

  551. 

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

  553.     {

  554.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  555.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  557. 

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

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

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

  561. 

  562.         if (fHost.uiName != nullptr)

  563.             delete[] fHost.uiName;

  564.         fHost.uiName = carla_strdup(uiName);

  565. 

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

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

  568. 

  569.         CarlaPlugin::setName(newName);

  570.     }

  571. 

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

  573.     {

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

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

  576. 

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

  578.     }

  579. 

  580.     // -------------------------------------------------------------------

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

  582. 

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

  584.     {

  585.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  587.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  589. 

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

  591. 

  592.         // FIXME - try

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

  594. 

  595.         if (fHandle2 != nullptr)

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

  597. 

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

  599.     }

  600. 

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

  602.     {

  603.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  604.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

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

  607.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

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

  609. 

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

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

  612. 

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

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

  615. 

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

  617.         {

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

  619.             {

  620.                 const ScopedSingleProcessLocker spl(this, true);

  621. 

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

  623. 

  624.                 if (fHandle2 != nullptr)

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

  626.             }

  627.         }

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

  629.         {

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

  631. 

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

  633.             {

  634.                 uint8_t channel = 0;

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

  636.                 {

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

  638. 

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

  640.                     {

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

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

  643. 

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

  645. 

  646.                         if (fHandle2 != nullptr)

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

  648. 

  649.                         fCurMidiProgs[channel] = index;

  650. 

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

  652.                         {

  653.                             pData->midiprog.current = index;

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

  655.                         }

  656.                     }

  657. 

  658.                     ++channel;

  659.                 }

  660.                 CARLA_SAFE_ASSERT(channel == MAX_MIDI_CHANNELS);

  661.             }

  662.         }

  663.         else

  664.         {

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

  666.             {

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

  668. 

  669.                 if (fHandle2 != nullptr)

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

  671.             }

  672. 

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

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

  675.         }

  676. 

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

  678.     }

  679. 

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

  681.     {

  682.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  683.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  685. 

  686.         // TODO, put into check below

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

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

  689. 

  690.         if (index >= 0)

  691.         {

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

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

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

  695. 

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

  697. 

  698.             try {

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

  700.             } catch(...) {}

  701. 

  702.             if (fHandle2 != nullptr)

  703.             {

  704.                 try {

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

  706.                 } catch(...) {}

  707.             }

  708. 

  709.             fCurMidiProgs[channel] = index;

  710.         }

  711. 

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

  713.     }

  714. 

  715.     // -------------------------------------------------------------------

  716.     // Set ui stuff

  717. 

  718.     void showCustomUI(const bool yesNo) override

  719.     {

  720.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  721.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  722. 

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

  724.             return;

  725. 

  726.         const bool oldIsUiVisible(fIsUiVisible);

  727. 

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

  729. 

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

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

  732.             return;

  733. 

  734.         fIsUiVisible = yesNo;

  735. 

  736.         if (! yesNo)

  737.         {

  738.             pData->transientTryCounter = 0;

  739.             return;

  740.         }

  741. 

  742. #ifndef BUILD_BRIDGE

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

  744.             pData->tryTransient();

  745. #endif

  746. 

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

  748.         {

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

  750.             {

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

  752. 

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

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

  755.             }

  756.         }

  757. 

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

  759.         {

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

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

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

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

  764. 

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

  766.         }

  767. 

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

  769.         {

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

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

  772.         }

  773.     }

  774. 

  775.     void uiIdle() override

  776.     {

  777.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  778.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  779. 

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

  781.             fDescriptor->ui_idle(fHandle);

  782. 

  783.         CarlaPlugin::uiIdle();

  784.     }

  785. 

  786.     // -------------------------------------------------------------------

  787.     // Plugin state

  788. 

  789.     void reload() override

  790.     {

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

  792.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  793.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  795. 

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

  797. 

  798.         // Safely disable plugin for reload

  799.         const ScopedDisabler sd(this);

  800. 

  801.         if (pData->active)

  802.             deactivate();

  803. 

  804.         clearBuffers();

  805. 

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

  807. 

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

  809. 

  810.         bool forcedStereoIn, forcedStereoOut;

  811.         forcedStereoIn = forcedStereoOut = false;

  812. 

  813.         bool needsCtrlIn, needsCtrlOut;

  814.         needsCtrlIn = needsCtrlOut = false;

  815. 

  816.         aIns   = fDescriptor->audioIns;

  817.         aOuts  = fDescriptor->audioOuts;

  818.         mIns   = fDescriptor->midiIns;

  819.         mOuts  = fDescriptor->midiOuts;

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

  821. 

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

  823.         {

  824.             if (fHandle2 == nullptr)

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

  826. 

  827.             if (fHandle2 != nullptr)

  828.             {

  829.                 if (aIns == 1)

  830.                 {

  831.                     aIns = 2;

  832.                     forcedStereoIn = true;

  833.                 }

  834. 

  835.                 if (aOuts == 1)

  836.                 {

  837.                     aOuts = 2;

  838.                     forcedStereoOut = true;

  839.                 }

  840.             }

  841.         }

  842. 

  843.         if (aIns > 0)

  844.         {

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

  846.             fAudioInBuffers = new float*[aIns];

  847. 

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

  849.                 fAudioInBuffers[i] = nullptr;

  850.         }

  851. 

  852.         if (aOuts > 0)

  853.         {

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

  855.             fAudioOutBuffers = new float*[aOuts];

  856.             needsCtrlIn = true;

  857. 

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

  859.                 fAudioOutBuffers[i] = nullptr;

  860.         }

  861. 

  862.         if (mIns > 0)

  863.         {

  864.             fMidiIn.createNew(mIns);

  865.             needsCtrlIn = (mIns == 1);

  866.         }

  867. 

  868.         if (mOuts > 0)

  869.         {

  870.             fMidiOut.createNew(mOuts);

  871.             needsCtrlOut = (mOuts == 1);

  872.         }

  873. 

  874.         if (params > 0)

  875.         {

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

  877.         }

  878. 

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

  880.         CarlaString portName;

  881. 

  882.         // Audio Ins

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

  884.         {

  885.             portName.clear();

  886. 

  887.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  888.             {

  889.                 portName  = pData->name;

  890.                 portName += ":";

  891.             }

  892. 

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

  894.             {

  895.                 portName += "input_";

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

  897.             }

  898.             else

  899.                 portName += "input";

  900. 

  901.             portName.truncate(portNameSize);

  902. 

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

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

  905. 

  906.             if (forcedStereoIn)

  907.             {

  908.                 portName += "_2";

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

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

  911.                 break;

  912.             }

  913.         }

  914. 

  915.         // Audio Outs

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

  917.         {

  918.             portName.clear();

  919. 

  920.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  921.             {

  922.                 portName  = pData->name;

  923.                 portName += ":";

  924.             }

  925. 

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

  927.             {

  928.                 portName += "output_";

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

  930.             }

  931.             else

  932.                 portName += "output";

  933. 

  934.             portName.truncate(portNameSize);

  935. 

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

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

  938. 

  939.             if (forcedStereoOut)

  940.             {

  941.                 portName += "_2";

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

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

  944.                 break;

  945.             }

  946.         }

  947. 

  948.         // MIDI Input (only if multiple)

  949.         if (mIns > 1)

  950.         {

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

  952.             {

  953.                 portName.clear();

  954. 

  955.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  956.                 {

  957.                     portName  = pData->name;

  958.                     portName += ":";

  959.                 }

  960. 

  961.                 portName += "midi-in_";

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

  963.                 portName.truncate(portNameSize);

  964. 

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

  966.                 fMidiIn.indexes[j] = j;

  967.             }

  968.         }

  969. 

  970.         // MIDI Output (only if multiple)

  971.         if (mOuts > 1)

  972.         {

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

  974.             {

  975.                 portName.clear();

  976. 

  977.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  978.                 {

  979.                     portName  = pData->name;

  980.                     portName += ":";

  981.                 }

  982. 

  983.                 portName += "midi-out_";

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

  985.                 portName.truncate(portNameSize);

  986. 

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

  988.                 fMidiOut.indexes[j] = j;

  989.             }

  990.         }

  991. 

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

  993.         {

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

  995. 

  996.             CARLA_SAFE_ASSERT_CONTINUE(paramInfo != nullptr);

  997. 

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

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

  1000.             pData->param.data[j].rindex = static_cast<int32_t>(j);

  1001. 

  1002.             float min, max, def, step, stepSmall, stepLarge;

  1003. 

  1004.             // min value

  1005.             min = paramInfo->ranges.min;

  1006. 

  1007.             // max value

  1008.             max = paramInfo->ranges.max;

  1009. 

  1010.             if (min > max)

  1011.                 max = min;

  1012.             else if (max < min)

  1013.                 min = max;

  1014. 

  1015.             if (carla_compareFloats(min, max))

  1016.             {

  1017.                 carla_stderr2("WARNING - Broken plugin parameter '%s': max == min", paramInfo->name);

  1018.                 max = min + 0.1f;

  1019.             }

  1020. 

  1021.             // default value

  1022.             def = paramInfo->ranges.def;

  1023. 

  1024.             if (def < min)

  1025.                 def = min;

  1026.             else if (def > max)

  1027.                 def = max;

  1028. 

  1029.             if (paramInfo->hints & NATIVE_PARAMETER_USES_SAMPLE_RATE)

  1030.             {

  1031.                 min *= sampleRate;

  1032.                 max *= sampleRate;

  1033.                 def *= sampleRate;

  1034.                 pData->param.data[j].hints |= PARAMETER_USES_SAMPLERATE;

  1035.             }

  1036. 

  1037.             if (paramInfo->hints & NATIVE_PARAMETER_IS_BOOLEAN)

  1038.             {

  1039.                 step = max - min;

  1040.                 stepSmall = step;

  1041.                 stepLarge = step;

  1042.                 pData->param.data[j].hints |= PARAMETER_IS_BOOLEAN;

  1043.             }

  1044.             else if (paramInfo->hints & NATIVE_PARAMETER_IS_INTEGER)

  1045.             {

  1046.                 step = 1.0f;

  1047.                 stepSmall = 1.0f;

  1048.                 stepLarge = 10.0f;

  1049.                 pData->param.data[j].hints |= PARAMETER_IS_INTEGER;

  1050.             }

  1051.             else

  1052.             {

  1053.                 float range = max - min;

  1054.                 step = range/100.0f;

  1055.                 stepSmall = range/1000.0f;

  1056.                 stepLarge = range/10.0f;

  1057.             }

  1058. 

  1059.             if (paramInfo->hints & NATIVE_PARAMETER_IS_OUTPUT)

  1060.             {

  1061.                 pData->param.data[j].type = PARAMETER_OUTPUT;

  1062.                 needsCtrlOut = true;

  1063.             }

  1064.             else

  1065.             {

  1066.                 pData->param.data[j].type = PARAMETER_INPUT;

  1067.                 needsCtrlIn = true;

  1068.             }

  1069. 

  1070.             // extra parameter hints

  1071.             if (paramInfo->hints & NATIVE_PARAMETER_IS_ENABLED)

  1072.                 pData->param.data[j].hints |= PARAMETER_IS_ENABLED;

  1073. 

  1074.             if (paramInfo->hints & NATIVE_PARAMETER_IS_AUTOMABLE)

  1075.                 pData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE;

  1076. 

  1077.             if (paramInfo->hints & NATIVE_PARAMETER_IS_LOGARITHMIC)

  1078.                 pData->param.data[j].hints |= PARAMETER_IS_LOGARITHMIC;

  1079. 

  1080.             if (paramInfo->hints & NATIVE_PARAMETER_USES_SCALEPOINTS)

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

  1082. 

  1083.             if (paramInfo->hints & NATIVE_PARAMETER_USES_CUSTOM_TEXT)

  1084.                 pData->param.data[j].hints |= PARAMETER_USES_CUSTOM_TEXT;

  1085. 

  1086.             pData->param.ranges[j].min = min;

  1087.             pData->param.ranges[j].max = max;

  1088.             pData->param.ranges[j].def = def;

  1089.             pData->param.ranges[j].step = step;

  1090.             pData->param.ranges[j].stepSmall = stepSmall;

  1091.             pData->param.ranges[j].stepLarge = stepLarge;

  1092.         }

  1093. 

  1094.         if (needsCtrlIn)

  1095.         {

  1096.             portName.clear();

  1097. 

  1098.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1099.             {

  1100.                 portName  = pData->name;

  1101.                 portName += ":";

  1102.             }

  1103. 

  1104.             portName += "events-in";

  1105.             portName.truncate(portNameSize);

  1106. 

  1107.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  1108.         }

  1109. 

  1110.         if (needsCtrlOut)

  1111.         {

  1112.             portName.clear();

  1113. 

  1114.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1115.             {

  1116.                 portName  = pData->name;

  1117.                 portName += ":";

  1118.             }

  1119. 

  1120.             portName += "events-out";

  1121.             portName.truncate(portNameSize);

  1122. 

  1123.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  1124.         }

  1125. 

  1126.         if (forcedStereoIn || forcedStereoOut)

  1127.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1128.         else

  1129.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  1130. 

  1131.         // plugin hints

  1132.         pData->hints = 0x0;

  1133. 

  1134.         if (aOuts > 0 && (aIns == aOuts || aIns == 1))

  1135.             pData->hints |= PLUGIN_CAN_DRYWET;

  1136. 

  1137.         if (aOuts > 0)

  1138.             pData->hints |= PLUGIN_CAN_VOLUME;

  1139. 

  1140.         if (aOuts >= 2 && aOuts % 2 == 0)

  1141.             pData->hints |= PLUGIN_CAN_BALANCE;

  1142. 

  1143.         // native plugin hints

  1144.         if (fDescriptor->hints & NATIVE_PLUGIN_IS_RTSAFE)

  1145.             pData->hints |= PLUGIN_IS_RTSAFE;

  1146.         if (fDescriptor->hints & NATIVE_PLUGIN_IS_SYNTH)

  1147.             pData->hints |= PLUGIN_IS_SYNTH;

  1148.         if (fDescriptor->hints & NATIVE_PLUGIN_HAS_UI)

  1149.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  1150.         if (fDescriptor->hints & NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS)

  1151.             pData->hints |= PLUGIN_NEEDS_FIXED_BUFFERS;

  1152.         if (fDescriptor->hints & NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD)

  1153.             pData->hints |= PLUGIN_NEEDS_UI_MAIN_THREAD;

  1154. 

  1155.         // extra plugin hints

  1156.         pData->extraHints = 0x0;

  1157. 

  1158.         if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0) && mIns <= 1 && mOuts <= 1)

  1159.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1160. 

  1161.         if (fDescriptor->hints & NATIVE_PLUGIN_USES_MULTI_PROGS)

  1162.             pData->extraHints |= PLUGIN_EXTRA_HINT_USES_MULTI_PROGS;

  1163. 

  1164.         bufferSizeChanged(pData->engine->getBufferSize());

  1165.         reloadPrograms(true);

  1166. 

  1167.         if (pData->active)

  1168.             activate();

  1169. 

  1170.         carla_debug("CarlaPluginNative::reload() - end");

  1171.     }

  1172. 

  1173.     void reloadPrograms(const bool doInit) override

  1174.     {

  1175.         carla_debug("CarlaPluginNative::reloadPrograms(%s)", bool2str(doInit));

  1176.         uint32_t i, oldCount  = pData->midiprog.count;

  1177.         const int32_t current = pData->midiprog.current;

  1178. 

  1179.         // Delete old programs

  1180.         pData->midiprog.clear();

  1181. 

  1182.         // Query new programs

  1183.         uint32_t count = 0;

  1184.         if (fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_info != nullptr && fDescriptor->set_midi_program != nullptr)

  1185.             count = fDescriptor->get_midi_program_count(fHandle);

  1186. 

  1187.         if (count > 0)

  1188.         {

  1189.             pData->midiprog.createNew(count);

  1190. 

  1191.             // Update data

  1192.             for (i=0; i < count; ++i)

  1193.             {

  1194.                 const NativeMidiProgram* const mpDesc(fDescriptor->get_midi_program_info(fHandle, i));

  1195.                 CARLA_SAFE_ASSERT_CONTINUE(mpDesc != nullptr);

  1196. 

  1197.                 pData->midiprog.data[i].bank    = mpDesc->bank;

  1198.                 pData->midiprog.data[i].program = mpDesc->program;

  1199.                 pData->midiprog.data[i].name    = carla_strdup(mpDesc->name);

  1200.             }

  1201.         }

  1202. 

  1203. #if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)

  1204.         // Update OSC Names

  1205.         if (pData->engine->isOscControlRegistered())

  1206.         {

  1207.             pData->engine->oscSend_control_set_midi_program_count(pData->id, count);

  1208. 

  1209.             for (i=0; i < count; ++i)

  1210.                 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);

  1211.         }

  1212. #endif

  1213. 

  1214.         if (doInit)

  1215.         {

  1216.             if (count > 0)

  1217.                 setMidiProgram(0, false, false, false);

  1218.         }

  1219.         else

  1220.         {

  1221.             // Check if current program is invalid

  1222.             bool programChanged = false;

  1223. 

  1224.             if (count == oldCount+1)

  1225.             {

  1226.                 // one midi program added, probably created by user

  1227.                 pData->midiprog.current = static_cast<int32_t>(oldCount);

  1228.                 programChanged = true;

  1229.             }

  1230.             else if (current < 0 && count > 0)

  1231.             {

  1232.                 // programs exist now, but not before

  1233.                 pData->midiprog.current = 0;

  1234.                 programChanged = true;

  1235.             }

  1236.             else if (current >= 0 && count == 0)

  1237.             {

  1238.                 // programs existed before, but not anymore

  1239.                 pData->midiprog.current = -1;

  1240.                 programChanged = true;

  1241.             }

  1242.             else if (current >= static_cast<int32_t>(count))

  1243.             {

  1244.                 // current midi program > count

  1245.                 pData->midiprog.current = 0;

  1246.                 programChanged = true;

  1247.             }

  1248.             else

  1249.             {

  1250.                 // no change

  1251.                 pData->midiprog.current = current;

  1252.             }

  1253. 

  1254.             if (programChanged)

  1255.                 setMidiProgram(pData->midiprog.current, true, true, true);

  1256. 

  1257.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1258.         }

  1259.     }

  1260. 

  1261.     // -------------------------------------------------------------------

  1262.     // Plugin processing

  1263. 

  1264.     void activate() noexcept override

  1265.     {

  1266.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1267.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1268. 

  1269.         if (fDescriptor->activate != nullptr)

  1270.         {

  1271.             try {

  1272.                 fDescriptor->activate(fHandle);

  1273.             } catch(...) {}

  1274. 

  1275.             if (fHandle2 != nullptr)

  1276.             {

  1277.                 try {

  1278.                     fDescriptor->activate(fHandle2);

  1279.                 } catch(...) {}

  1280.             }

  1281.         }

  1282.     }

  1283. 

  1284.     void deactivate() noexcept override

  1285.     {

  1286.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1287.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1288. 

  1289.         if (fDescriptor->deactivate != nullptr)

  1290.         {

  1291.             try {

  1292.                 fDescriptor->deactivate(fHandle);

  1293.             } catch(...) {}

  1294. 

  1295.             if (fHandle2 != nullptr)

  1296.             {

  1297.                 try {

  1298.                     fDescriptor->deactivate(fHandle2);

  1299.                 } catch(...) {}

  1300.             }

  1301.         }

  1302.     }

  1303. 

  1304.     void process(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames) override

  1305.     {

  1306.         // --------------------------------------------------------------------------------------------------------

  1307.         // Check if active

  1308. 

  1309.         if (! pData->active)

  1310.         {

  1311.             // disable any output sound

  1312.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1313.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1314.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1315.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1316.             return;

  1317.         }

  1318. 

  1319.         fMidiEventCount = 0;

  1320.         carla_zeroStruct<NativeMidiEvent>(fMidiEvents, kPluginMaxMidiEvents*2);

  1321. 

  1322.         // --------------------------------------------------------------------------------------------------------

  1323.         // Check if needs reset

  1324. 

  1325.         if (pData->needsReset)

  1326.         {

  1327.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1328.             {

  1329.                 fMidiEventCount = MAX_MIDI_CHANNELS*2;

  1330. 

  1331.                 for (uint8_t k=0, i=MAX_MIDI_CHANNELS; k < MAX_MIDI_CHANNELS; ++k)

  1332.                 {

  1333.                     fMidiEvents[k].data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (k & MIDI_CHANNEL_BIT));

  1334.                     fMidiEvents[k].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1335.                     fMidiEvents[k].data[2] = 0;

  1336.                     fMidiEvents[k].size    = 3;

  1337. 

  1338.                     fMidiEvents[k+i].data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (k & MIDI_CHANNEL_BIT));

  1339.                     fMidiEvents[k+i].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1340.                     fMidiEvents[k+i].data[2] = 0;

  1341.                     fMidiEvents[k+i].size    = 3;

  1342.                 }

  1343.             }

  1344.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1345.             {

  1346.                 fMidiEventCount = MAX_MIDI_NOTE;

  1347. 

  1348.                 for (uint8_t k=0; k < MAX_MIDI_NOTE; ++k)

  1349.                 {

  1350.                     fMidiEvents[k].data[0] = uint8_t(MIDI_STATUS_NOTE_OFF | (pData->ctrlChannel & MIDI_CHANNEL_BIT));

  1351.                     fMidiEvents[k].data[1] = k;

  1352.                     fMidiEvents[k].data[2] = 0;

  1353.                     fMidiEvents[k].size    = 3;

  1354.                 }

  1355.             }

  1356. 

  1357.             pData->needsReset = false;

  1358.         }

  1359. 

  1360.         // --------------------------------------------------------------------------------------------------------

  1361.         // Set TimeInfo

  1362. 

  1363.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1364. 

  1365.         fTimeInfo.playing = timeInfo.playing;

  1366.         fTimeInfo.frame   = timeInfo.frame;

  1367.         fTimeInfo.usecs   = timeInfo.usecs;

  1368. 

  1369.         if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1370.         {

  1371.             fTimeInfo.bbt.valid = true;

  1372. 

  1373.             fTimeInfo.bbt.bar  = timeInfo.bbt.bar;

  1374.             fTimeInfo.bbt.beat = timeInfo.bbt.beat;

  1375.             fTimeInfo.bbt.tick = timeInfo.bbt.tick;

  1376.             fTimeInfo.bbt.barStartTick = timeInfo.bbt.barStartTick;

  1377. 

  1378.             fTimeInfo.bbt.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1379.             fTimeInfo.bbt.beatType    = timeInfo.bbt.beatType;

  1380. 

  1381.             fTimeInfo.bbt.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1382.             fTimeInfo.bbt.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1383.         }

  1384.         else

  1385.             fTimeInfo.bbt.valid = false;

  1386. 

  1387.         // --------------------------------------------------------------------------------------------------------

  1388.         // Event Input and Processing

  1389. 

  1390.         if (pData->event.portIn != nullptr)

  1391.         {

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

  1393.             // MIDI Input (External)

  1394. 

  1395.             if (pData->extNotes.mutex.tryLock())

  1396.             {

  1397.                 ExternalMidiNote note = { 0, 0, 0 };

  1398. 

  1399.                 for (; fMidiEventCount < kPluginMaxMidiEvents*2 && ! pData->extNotes.data.isEmpty();)

  1400.                 {

  1401.                     note = pData->extNotes.data.getFirst(note, true);

  1402. 

  1403.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1404. 

  1405.                     NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1406. 

  1407.                     nativeEvent.data[0] = uint8_t((note.velo > 0 ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF) | (note.channel & MIDI_CHANNEL_BIT));

  1408.                     nativeEvent.data[1] = note.note;

  1409.                     nativeEvent.data[2] = note.velo;

  1410.                     nativeEvent.size    = 3;

  1411.                 }

  1412. 

  1413.                 pData->extNotes.mutex.unlock();

  1414. 

  1415.             } // End of MIDI Input (External)

  1416. 

  1417.             // ----------------------------------------------------------------------------------------------------

  1418.             // Event Input (System)

  1419. 

  1420. #ifndef BUILD_BRIDGE

  1421.             bool allNotesOffSent = false;

  1422. #endif

  1423.             bool sampleAccurate  = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1424. 

  1425.             uint32_t startTime  = 0;

  1426.             uint32_t timeOffset = 0;

  1427.             uint32_t nextBankId;

  1428. 

  1429.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1430.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1431.             else

  1432.                 nextBankId = 0;

  1433. 

  1434.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1435.             {

  1436.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1437. 

  1438.                 if (event.time >= frames)

  1439.                     continue;

  1440. 

  1441.                 CARLA_ASSERT_INT2(event.time >= timeOffset, event.time, timeOffset);

  1442. 

  1443.                 if (event.time > timeOffset && sampleAccurate)

  1444.                 {

  1445.                     if (processSingle(audioIn, audioOut, cvIn, cvOut, event.time - timeOffset, timeOffset))

  1446.                     {

  1447.                         startTime  = 0;

  1448.                         timeOffset = event.time;

  1449. 

  1450.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1451.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1452.                         else

  1453.                             nextBankId = 0;

  1454. 

  1455.                         if (fMidiEventCount > 0)

  1456.                         {

  1457.                             carla_zeroStruct<NativeMidiEvent>(fMidiEvents, fMidiEventCount);

  1458.                             fMidiEventCount = 0;

  1459.                         }

  1460.                     }

  1461.                     else

  1462.                         startTime += timeOffset;

  1463.                 }

  1464. 

  1465.                 // Control change

  1466.                 switch (event.type)

  1467.                 {

  1468.                 case kEngineEventTypeNull:

  1469.                     break;

  1470. 

  1471.                 case kEngineEventTypeControl: {

  1472.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1473. 

  1474.                     switch (ctrlEvent.type)

  1475.                     {

  1476.                     case kEngineControlEventTypeNull:

  1477.                         break;

  1478. 

  1479.                     case kEngineControlEventTypeParameter: {

  1480. #ifndef BUILD_BRIDGE

  1481.                         // Control backend stuff

  1482.                         if (event.channel == pData->ctrlChannel)

  1483.                         {

  1484.                             float value;

  1485. 

  1486.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) > 0)

  1487.                             {

  1488.                                 value = ctrlEvent.value;

  1489.                                 setDryWet(value, false, false);

  1490.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1491.                             }

  1492. 

  1493.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) > 0)

  1494.                             {

  1495.                                 value = ctrlEvent.value*127.0f/100.0f;

  1496.                                 setVolume(value, false, false);

  1497.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1498.                             }

  1499. 

  1500.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) > 0)

  1501.                             {

  1502.                                 float left, right;

  1503.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1504. 

  1505.                                 if (value < 0.0f)

  1506.                                 {

  1507.                                     left  = -1.0f;

  1508.                                     right = (value*2.0f)+1.0f;

  1509.                                 }

  1510.                                 else if (value > 0.0f)

  1511.                                 {

  1512.                                     left  = (value*2.0f)-1.0f;

  1513.                                     right = 1.0f;

  1514.                                 }

  1515.                                 else

  1516.                                 {

  1517.                                     left  = -1.0f;

  1518.                                     right = 1.0f;

  1519.                                 }

  1520. 

  1521.                                 setBalanceLeft(left, false, false);

  1522.                                 setBalanceRight(right, false, false);

  1523.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1524.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1525.                             }

  1526.                         }

  1527. #endif

  1528.                         // Control plugin parameters

  1529.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1530.                         {

  1531.                             if (pData->param.data[k].midiChannel != event.channel)

  1532.                                 continue;

  1533.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1534.                                 continue;

  1535.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1536.                                 continue;

  1537.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1538.                                 continue;

  1539. 

  1540.                             float value;

  1541. 

  1542.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1543.                             {

  1544.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1545.                             }

  1546.                             else

  1547.                             {

  1548.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1549. 

  1550.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1551.                                     value = std::rint(value);

  1552.                             }

  1553. 

  1554.                             setParameterValue(k, value, false, false, false);

  1555.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1556.                         }

  1557. 

  1558.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param < MAX_MIDI_CONTROL)

  1559.                         {

  1560.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1561.                                 continue;

  1562. 

  1563.                             NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1564.                             carla_zeroStruct(nativeEvent);

  1565. 

  1566.                             nativeEvent.time    = sampleAccurate ? startTime : event.time;

  1567.                             nativeEvent.data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (event.channel & MIDI_CHANNEL_BIT));

  1568.                             nativeEvent.data[1] = uint8_t(ctrlEvent.param);

  1569.                             nativeEvent.data[2] = uint8_t(ctrlEvent.value*127.0f);

  1570.                             nativeEvent.size    = 3;

  1571.                         }

  1572.                         break;

  1573.                     }

  1574. 

  1575.                     case kEngineControlEventTypeMidiBank:

  1576.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1577.                             nextBankId = ctrlEvent.param;

  1578.                         break;

  1579. 

  1580.                     case kEngineControlEventTypeMidiProgram:

  1581.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1582.                         {

  1583.                             const uint32_t nextProgramId(ctrlEvent.param);

  1584. 

  1585.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1586.                             {

  1587.                                 if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1588.                                 {

  1589.                                     fDescriptor->set_midi_program(fHandle, event.channel, nextBankId, nextProgramId);

  1590. 

  1591.                                     if (fHandle2 != nullptr)

  1592.                                         fDescriptor->set_midi_program(fHandle2, event.channel, nextBankId, nextProgramId);

  1593. 

  1594.                                     fCurMidiProgs[event.channel] = static_cast<int32_t>(k);

  1595. 

  1596.                                     if (event.channel == pData->ctrlChannel)

  1597.                                         pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, static_cast<int32_t>(k), 0, 0.0f);

  1598. 

  1599.                                     break;

  1600.                                 }

  1601.                             }

  1602.                         }

  1603.                         break;

  1604. 

  1605.                     case kEngineControlEventTypeAllSoundOff:

  1606.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1607.                         {

  1608.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1609.                                 continue;

  1610. 

  1611.                             NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1612.                             carla_zeroStruct(nativeEvent);

  1613. 

  1614.                             nativeEvent.port    = 0;

  1615.                             nativeEvent.time    = sampleAccurate ? startTime : event.time;

  1616.                             nativeEvent.data[0] = uint8_t(MIDI_STATUS_CONTROL_CHANGE | (event.channel & MIDI_CHANNEL_BIT));

  1617.                             nativeEvent.data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1618.                             nativeEvent.data[2] = 0;

  1619.                             nativeEvent.size    = 3;

  1620.                         }

  1621.                         break;

  1622. 

  1623.                     case kEngineControlEventTypeAllNotesOff:

  1624.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1625.                         {

  1626. #ifndef BUILD_BRIDGE

  1627.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1628.                             {

  1629.                                 allNotesOffSent = true;

  1630.                                 sendMidiAllNotesOffToCallback();

  1631.                             }

  1632. #endif

  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] = MIDI_CONTROL_ALL_NOTES_OFF;

  1643.                             nativeEvent.data[2] = 0;

  1644.                             nativeEvent.size    = 3;

  1645.                         }

  1646.                         break;

  1647.                     }

  1648.                     break;

  1649.                 }

  1650. 

  1651.                 case kEngineEventTypeMidi: {

  1652.                     if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1653.                         continue;

  1654. 

  1655.                     const EngineMidiEvent& midiEvent(event.midi);

  1656. 

  1657.                     if (midiEvent.size > 4)

  1658.                         continue;

  1659. #ifdef CARLA_PROPER_CPP11_SUPPORT

  1660.                     static_assert(4 <= EngineMidiEvent::kDataSize, "Incorrect data");

  1661. #endif

  1662. 

  1663.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1664. 

  1665.                     if (status == MIDI_STATUS_CHANNEL_PRESSURE && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1666.                         continue;

  1667.                     if (status == MIDI_STATUS_CONTROL_CHANGE && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1668.                         continue;

  1669.                     if (status == MIDI_STATUS_POLYPHONIC_AFTERTOUCH && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1670.                         continue;

  1671.                     if (status == MIDI_STATUS_PITCH_WHEEL_CONTROL && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1672.                         continue;

  1673. 

  1674.                     // Fix bad note-off

  1675.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1676.                         status = MIDI_STATUS_NOTE_OFF;

  1677. 

  1678.                     NativeMidiEvent& nativeEvent(fMidiEvents[fMidiEventCount++]);

  1679.                     carla_zeroStruct(nativeEvent);

  1680. 

  1681.                     nativeEvent.port = midiEvent.port;

  1682.                     nativeEvent.time = sampleAccurate ? startTime : event.time;

  1683.                     nativeEvent.size = midiEvent.size;

  1684. 

  1685.                     nativeEvent.data[0] = uint8_t(status | (event.channel & MIDI_CHANNEL_BIT));

  1686.                     nativeEvent.data[1] = midiEvent.size >= 2 ? midiEvent.data[1] : 0;

  1687.                     nativeEvent.data[2] = midiEvent.size >= 3 ? midiEvent.data[2] : 0;

  1688.                     nativeEvent.data[3] = midiEvent.size == 4 ? midiEvent.data[3] : 0;

  1689. 

  1690.                     if (status == MIDI_STATUS_NOTE_ON)

  1691.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, midiEvent.data[1], midiEvent.data[2]);

  1692.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1693.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, midiEvent.data[1], 0.0f);

  1694.                 } break;

  1695.                 } // switch (event.type)

  1696.             }

  1697. 

  1698.             pData->postRtEvents.trySplice();

  1699. 

  1700.             if (frames > timeOffset)

  1701.                 processSingle(audioIn, audioOut, cvIn, cvOut, frames - timeOffset, timeOffset);

  1702. 

  1703.         } // End of Event Input and Processing

  1704. 

  1705.         // --------------------------------------------------------------------------------------------------------

  1706.         // Plugin processing (no events)

  1707. 

  1708.         else

  1709.         {

  1710.             processSingle(audioIn, audioOut, cvIn, cvOut, frames, 0);

  1711. 

  1712.         } // End of Plugin processing (no events)

  1713. 

  1714.         // --------------------------------------------------------------------------------------------------------

  1715.         // Control and MIDI Output

  1716. 

  1717.         if (fMidiOut.count > 0 || pData->event.portOut != nullptr)

  1718.         {

  1719. #ifndef BUILD_BRIDGE

  1720.             float value, curValue;

  1721. 

  1722.             for (uint32_t k=0; k < pData->param.count; ++k)

  1723.             {

  1724.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1725.                     continue;

  1726. 

  1727.                 curValue = fDescriptor->get_parameter_value(fHandle, k);

  1728.                 pData->param.ranges[k].fixValue(curValue);

  1729. 

  1730.                 if (pData->param.data[k].midiCC > 0)

  1731.                 {

  1732.                     value = pData->param.ranges[k].getNormalizedValue(curValue);

  1733.                     pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, static_cast<uint16_t>(pData->param.data[k].midiCC), value);

  1734.                 }

  1735.             }

  1736. #endif

  1737. 

  1738.             // reverse lookup MIDI events

  1739.             for (uint32_t k = (kPluginMaxMidiEvents*2)-1; k >= fMidiEventCount; --k)

  1740.             {

  1741.                 if (fMidiEvents[k].data[0] == 0)

  1742.                     break;

  1743. 

  1744.                 const uint8_t channel = uint8_t(MIDI_GET_CHANNEL_FROM_DATA(fMidiEvents[k].data));

  1745.                 const uint8_t port    = fMidiEvents[k].port;

  1746. 

  1747.                 if (pData->event.portOut != nullptr)

  1748.                     pData->event.portOut->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].size, fMidiEvents[k].data);

  1749.                 else if (port < fMidiOut.count)

  1750.                     fMidiOut.ports[port]->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].size, fMidiEvents[k].data);

  1751.             }

  1752. 

  1753.         } // End of Control and MIDI Output

  1754.     }

  1755. 

  1756.     bool processSingle(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames, const uint32_t timeOffset)

  1757.     {

  1758.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1759. 

  1760.         if (pData->audioIn.count > 0)

  1761.         {

  1762.             CARLA_SAFE_ASSERT_RETURN(audioIn != nullptr, false);

  1763.         }

  1764.         if (pData->audioOut.count > 0)

  1765.         {

  1766.             CARLA_SAFE_ASSERT_RETURN(audioOut != nullptr, false);

  1767.         }

  1768.         if (pData->cvIn.count > 0)

  1769.         {

  1770.             CARLA_SAFE_ASSERT_RETURN(cvIn != nullptr, false);

  1771.         }

  1772.         if (pData->cvOut.count > 0)

  1773.         {

  1774.             CARLA_SAFE_ASSERT_RETURN(cvOut != nullptr, false);

  1775.         }

  1776. 

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

  1778.         // Try lock, silence otherwise

  1779. 

  1780.         if (pData->engine->isOffline())

  1781.         {

  1782.             pData->singleMutex.lock();

  1783.         }

  1784.         else if (! pData->singleMutex.tryLock())

  1785.         {

  1786.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1787.             {

  1788.                 for (uint32_t k=0; k < frames; ++k)

  1789.                     audioOut[i][k+timeOffset] = 0.0f;

  1790.             }

  1791.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1792.             {

  1793.                 for (uint32_t k=0; k < frames; ++k)

  1794.                     cvOut[i][k+timeOffset] = 0.0f;

  1795.             }

  1796. 

  1797.             return false;

  1798.         }

  1799. 

  1800.         // --------------------------------------------------------------------------------------------------------

  1801.         // Set audio buffers

  1802. 

  1803.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1804.             FloatVectorOperations::copy(fAudioInBuffers[i], audioIn[i]+timeOffset, static_cast<int>(frames));

  1805. 

  1806.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1807.             FloatVectorOperations::clear(fAudioOutBuffers[i], static_cast<int>(frames));

  1808. 

  1809. #if 0

  1810.         // --------------------------------------------------------------------------------------------------------

  1811.         // Set CV buffers

  1812. 

  1813.         for (uint32_t i=0; i < pData->cvIn.count; ++i)

  1814.             FloatVectorOperations::copy(fCvInBuffers[i], cvIn[i]+timeOffset, static_cast<int>(frames));

  1815. 

  1816.         for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1817.             FloatVectorOperations::clear(fCvOutBuffers[i], static_cast<int>(frames));

  1818. #endif

  1819. 

  1820.         // --------------------------------------------------------------------------------------------------------

  1821.         // Run plugin

  1822. 

  1823.         fIsProcessing = true;

  1824. 

  1825.         if (fHandle2 == nullptr)

  1826.         {

  1827.             fDescriptor->process(fHandle, fAudioInBuffers, fAudioOutBuffers, frames, fMidiEvents, fMidiEventCount);

  1828.         }

  1829.         else

  1830.         {

  1831.             fDescriptor->process(fHandle,

  1832.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[0] : nullptr,

  1833.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[0] : nullptr,

  1834.                                  frames, fMidiEvents, fMidiEventCount);

  1835. 

  1836.             fDescriptor->process(fHandle2,

  1837.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[1] : nullptr,

  1838.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[1] : nullptr,

  1839.                                  frames, fMidiEvents, fMidiEventCount);

  1840.         }

  1841. 

  1842.         fIsProcessing = false;

  1843.         fTimeInfo.frame += frames;

  1844. 

  1845. #ifndef BUILD_BRIDGE

  1846.         // --------------------------------------------------------------------------------------------------------

  1847.         // Post-processing (dry/wet, volume and balance)

  1848. 

  1849.         {

  1850.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && ! carla_compareFloats(pData->postProc.dryWet, 1.0f);

  1851.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_compareFloats(pData->postProc.balanceLeft, -1.0f) && carla_compareFloats(pData->postProc.balanceRight, 1.0f));

  1852. 

  1853.             bool isPair;

  1854.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1855. 

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

  1857.             {

  1858.                 // Dry/Wet

  1859.                 if (doDryWet)

  1860.                 {

  1861.                     for (uint32_t k=0; k < frames; ++k)

  1862.                     {

  1863.                         bufValue = fAudioInBuffers[(pData->audioIn.count == 1) ? 0 : i][k];

  1864.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1865.                     }

  1866.                 }

  1867. 

  1868.                 // Balance

  1869.                 if (doBalance)

  1870.                 {

  1871.                     isPair = (i % 2 == 0);

  1872. 

  1873.                     if (isPair)

  1874.                     {

  1875.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1876.                         FloatVectorOperations::copy(oldBufLeft, fAudioOutBuffers[i], static_cast<int>(frames));

  1877.                     }

  1878. 

  1879.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1880.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1881. 

  1882.                     for (uint32_t k=0; k < frames; ++k)

  1883.                     {

  1884.                         if (isPair)

  1885.                         {

  1886.                             // left

  1887.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1888.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1889.                         }

  1890.                         else

  1891.                         {

  1892.                             // right

  1893.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1894.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1895.                         }

  1896.                     }

  1897.                 }

  1898. 

  1899.                 // Volume (and buffer copy)

  1900.                 {

  1901.                     for (uint32_t k=0; k < frames; ++k)

  1902.                         audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1903.                 }

  1904.             }

  1905. 

  1906.         } // End of Post-processing

  1907. #else

  1908.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1909.         {

  1910.             for (uint32_t k=0; k < frames; ++k)

  1911.                 audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1912.         }

  1913. #endif

  1914. 

  1915. #if 0

  1916.         for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1917.         {

  1918.             for (uint32_t k=0; k < frames; ++k)

  1919.                 cvOut[i][k+timeOffset] = fCvOutBuffers[i][k];

  1920.         }

  1921. #endif

  1922. 

  1923.         // --------------------------------------------------------------------------------------------------------

  1924. 

  1925.         pData->singleMutex.unlock();

  1926.         return true;

  1927.     }

  1928. 

  1929.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1930.     {

  1931.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1932.         carla_debug("CarlaPluginNative::bufferSizeChanged(%i)", newBufferSize);

  1933. 

  1934.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1935.         {

  1936.             if (fAudioInBuffers[i] != nullptr)

  1937.                 delete[] fAudioInBuffers[i];

  1938.             fAudioInBuffers[i] = new float[newBufferSize];

  1939.         }

  1940. 

  1941.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1942.         {

  1943.             if (fAudioOutBuffers[i] != nullptr)

  1944.                 delete[] fAudioOutBuffers[i];

  1945.             fAudioOutBuffers[i] = new float[newBufferSize];

  1946.         }

  1947. 

  1948.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1949.         {

  1950.             fDescriptor->dispatcher(fHandle, NATIVE_PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, static_cast<intptr_t>(newBufferSize), nullptr, 0.0f);

  1951. 

  1952.             if (fHandle2 != nullptr)

  1953.                 fDescriptor->dispatcher(fHandle2, NATIVE_PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, static_cast<intptr_t>(newBufferSize), nullptr, 0.0f);

  1954.         }

  1955.     }

  1956. 

  1957.     void sampleRateChanged(const double newSampleRate) override

  1958.     {

  1959.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  1960.         carla_debug("CarlaPluginNative::sampleRateChanged(%g)", newSampleRate);

  1961. 

  1962.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1963.         {

  1964.             fDescriptor->dispatcher(fHandle, NATIVE_PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  1965. 

  1966.             if (fHandle2 != nullptr)

  1967.                 fDescriptor->dispatcher(fHandle2, NATIVE_PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  1968.         }

  1969.     }

  1970. 

  1971.     void offlineModeChanged(const bool isOffline) override

  1972.     {

  1973.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1974.         {

  1975.             fDescriptor->dispatcher(fHandle, NATIVE_PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  1976. 

  1977.             if (fHandle2 != nullptr)

  1978.                 fDescriptor->dispatcher(fHandle2, NATIVE_PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  1979.         }

  1980.     }

  1981. 

  1982.     // -------------------------------------------------------------------

  1983.     // Plugin buffers

  1984. 

  1985.     void initBuffers() const noexcept override

  1986.     {

  1987.         fMidiIn.initBuffers();

  1988.         fMidiOut.initBuffers();

  1989. 

  1990.         CarlaPlugin::initBuffers();

  1991.     }

  1992. 

  1993.     void clearBuffers() noexcept override

  1994.     {

  1995.         carla_debug("CarlaPluginNative::clearBuffers() - start");

  1996. 

  1997.         if (fAudioInBuffers != nullptr)

  1998.         {

  1999.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  2000.             {

  2001.                 if (fAudioInBuffers[i] != nullptr)

  2002.                 {

  2003.                     delete[] fAudioInBuffers[i];

  2004.                     fAudioInBuffers[i] = nullptr;

  2005.                 }

  2006.             }

  2007. 

  2008.             delete[] fAudioInBuffers;

  2009.             fAudioInBuffers = nullptr;

  2010.         }

  2011. 

  2012.         if (fAudioOutBuffers != nullptr)

  2013.         {

  2014.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  2015.             {

  2016.                 if (fAudioOutBuffers[i] != nullptr)

  2017.                 {

  2018.                     delete[] fAudioOutBuffers[i];

  2019.                     fAudioOutBuffers[i] = nullptr;

  2020.                 }

  2021.             }

  2022. 

  2023.             delete[] fAudioOutBuffers;

  2024.             fAudioOutBuffers = nullptr;

  2025.         }

  2026. 

  2027.         fMidiIn.clear();

  2028.         fMidiOut.clear();

  2029. 

  2030.         CarlaPlugin::clearBuffers();

  2031. 

  2032.         carla_debug("CarlaPluginNative::clearBuffers() - end");

  2033.     }

  2034. 

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

  2036.     // Post-poned UI Stuff

  2037. 

  2038.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  2039.     {

  2040.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2041.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2042.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  2043. 

  2044.         if (! fIsUiVisible)

  2045.             return;

  2046. 

  2047.         if (fDescriptor->ui_set_parameter_value != nullptr)

  2048.             fDescriptor->ui_set_parameter_value(fHandle, index, value);

  2049.     }

  2050. 

  2051.     void uiMidiProgramChange(const uint32_t index) noexcept override

  2052.     {

  2053.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2054.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2055.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  2056. 

  2057.         if (! fIsUiVisible)

  2058.             return;

  2059.         if (index >= pData->midiprog.count)

  2060.             return;

  2061. 

  2062.         if (fDescriptor->ui_set_midi_program != nullptr)

  2063.             fDescriptor->ui_set_midi_program(fHandle, 0, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  2064.     }

  2065. 

  2066.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  2067.     {

  2068.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2069.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2070.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  2071.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2072.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  2073. 

  2074.         if (! fIsUiVisible)

  2075.             return;

  2076. 

  2077.         // TODO

  2078.     }

  2079. 

  2080.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  2081.     {

  2082.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2083.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2084.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  2085.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2086. 

  2087.         if (! fIsUiVisible)

  2088.             return;

  2089.         if (fDescriptor == nullptr || fHandle == nullptr)

  2090.             return;

  2091. 

  2092.         // TODO

  2093.     }

  2094. 

  2095.     // -------------------------------------------------------------------

  2096. 

  2097. protected:

  2098.     uint32_t handleGetBufferSize() const noexcept

  2099.     {

  2100.         return pData->engine->getBufferSize();

  2101.     }

  2102. 

  2103.     double handleGetSampleRate() const noexcept

  2104.     {

  2105.         return pData->engine->getSampleRate();

  2106.     }

  2107. 

  2108.     bool handleIsOffline() const noexcept

  2109.     {

  2110.         return pData->engine->isOffline();

  2111.     }

  2112. 

  2113.     const NativeTimeInfo* handleGetTimeInfo() const noexcept

  2114.     {

  2115.         CARLA_SAFE_ASSERT_RETURN(fIsProcessing, nullptr);

  2116. 

  2117.         return &fTimeInfo;

  2118.     }

  2119. 

  2120.     bool handleWriteMidiEvent(const NativeMidiEvent* const event)

  2121.     {

  2122.         CARLA_ASSERT(pData->enabled);

  2123.         CARLA_ASSERT(fIsProcessing);

  2124.         CARLA_ASSERT(fMidiOut.count > 0 || pData->event.portOut != nullptr);

  2125.         CARLA_ASSERT(event != nullptr);

  2126.         CARLA_ASSERT(event->data[0] != 0);

  2127. 

  2128.         if (! pData->enabled)

  2129.             return false;

  2130.         if (fMidiOut.count == 0)

  2131.             return false;

  2132.         if (event == nullptr)

  2133.             return false;

  2134.         if (event->data[0] == 0)

  2135.             return false;

  2136.         if (! fIsProcessing)

  2137.         {

  2138.             carla_stderr2("CarlaPluginNative::handleWriteMidiEvent(%p) - received MIDI out event outside audio thread, ignoring", event);

  2139.             return false;

  2140.         }

  2141. 

  2142.         // reverse-find first free event, and put it there

  2143.         for (uint32_t i=(kPluginMaxMidiEvents*2)-1; i > fMidiEventCount; --i)

  2144.         {

  2145.             if (fMidiEvents[i].data[0] == 0)

  2146.             {

  2147.                 std::memcpy(&fMidiEvents[i], event, sizeof(NativeMidiEvent));

  2148.                 return true;

  2149.             }

  2150.         }

  2151. 

  2152.         return false;

  2153.     }

  2154. 

  2155.     void handleUiParameterChanged(const uint32_t index, const float value)

  2156.     {

  2157.         setParameterValue(index, value, false, true, true);

  2158.     }

  2159. 

  2160.     void handleUiCustomDataChanged(const char* const key, const char* const value)

  2161.     {

  2162.         setCustomData(CUSTOM_DATA_TYPE_STRING, key, value, false);

  2163.     }

  2164. 

  2165.     void handleUiClosed()

  2166.     {

  2167.         pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2168.         fIsUiVisible = false;

  2169.     }

  2170. 

  2171.     const char* handleUiOpenFile(const bool isDir, const char* const title, const char* const filter)

  2172.     {

  2173.         return pData->engine->runFileCallback(FILE_CALLBACK_OPEN, isDir, title, filter);

  2174.     }

  2175. 

  2176.     const char* handleUiSaveFile(const bool isDir, const char* const title, const char* const filter)

  2177.     {

  2178.         return pData->engine->runFileCallback(FILE_CALLBACK_SAVE, isDir, title, filter);

  2179.     }

  2180. 

  2181.     intptr_t handleDispatcher(const NativeHostDispatcherOpcode opcode, const int32_t index, const intptr_t value, void* const ptr, const float opt)

  2182.     {

  2183.         carla_debug("CarlaPluginNative::handleDispatcher(%i, %i, " P_INTPTR ", %p, %f)", opcode, index, value, ptr, opt);

  2184. 

  2185.         intptr_t ret = 0;

  2186. 

  2187.         switch (opcode)

  2188.         {

  2189.         case NATIVE_HOST_OPCODE_NULL:

  2190.             break;

  2191.         case NATIVE_HOST_OPCODE_UPDATE_PARAMETER:

  2192.             // TODO

  2193.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2194.             break;

  2195.         case NATIVE_HOST_OPCODE_UPDATE_MIDI_PROGRAM:

  2196.             // TODO

  2197.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2198.             break;

  2199.         case NATIVE_HOST_OPCODE_RELOAD_PARAMETERS:

  2200.             reload(); // FIXME

  2201.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PARAMETERS, pData->id, -1, 0, 0.0f, nullptr);

  2202.             break;

  2203.         case NATIVE_HOST_OPCODE_RELOAD_MIDI_PROGRAMS:

  2204.             reloadPrograms(false);

  2205.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, -1, 0, 0.0f, nullptr);

  2206.             break;

  2207.         case NATIVE_HOST_OPCODE_RELOAD_ALL:

  2208.             reload();

  2209.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_ALL, pData->id, -1, 0, 0.0f, nullptr);

  2210.             break;

  2211.         case NATIVE_HOST_OPCODE_UI_UNAVAILABLE:

  2212.             pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, -1, 0, 0.0f, nullptr);

  2213.             fIsUiVisible = false;

  2214.             break;

  2215.         }

  2216. 

  2217.         return ret;

  2218. 

  2219.         // unused for now

  2220.         (void)index;

  2221.         (void)value;

  2222.         (void)ptr;

  2223.         (void)opt;

  2224.     }

  2225. 

  2226.     // -------------------------------------------------------------------

  2227. 

  2228. public:

  2229.     void* getNativeHandle() const noexcept override

  2230.     {

  2231.         return fHandle;

  2232.     }

  2233. 

  2234.     const void* getNativeDescriptor() const noexcept override

  2235.     {

  2236.         return fDescriptor;

  2237.     }

  2238. 

  2239.     // -------------------------------------------------------------------

  2240. 

  2241.     bool init(const char* const name, const char* const label)

  2242.     {

  2243.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2244. 

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

  2246.         // first checks

  2247. 

  2248.         if (pData->client != nullptr)

  2249.         {

  2250.             pData->engine->setLastError("Plugin client is already registered");

  2251.             return false;

  2252.         }

  2253. 

  2254.         if (label == nullptr && label[0] != '\0')

  2255.         {

  2256.             pData->engine->setLastError("null label");

  2257.             return false;

  2258.         }

  2259. 

  2260.         // ---------------------------------------------------------------

  2261.         // get descriptor that matches label

  2262. 

  2263.         for (LinkedList<const NativePluginDescriptor*>::Itenerator it = gPluginDescriptors.begin(); it.valid(); it.next())

  2264.         {

  2265.             fDescriptor = it.getValue();

  2266. 

  2267.             CARLA_SAFE_ASSERT_BREAK(fDescriptor != nullptr);

  2268. 

  2269.             carla_debug("Check vs \"%s\"", fDescriptor->label);

  2270. 

  2271.             if (fDescriptor->label != nullptr && std::strcmp(fDescriptor->label, label) == 0)

  2272.                 break;

  2273. 

  2274.             fDescriptor = nullptr;

  2275.         }

  2276. 

  2277.         if (fDescriptor == nullptr)

  2278.         {

  2279.             pData->engine->setLastError("Invalid internal plugin");

  2280.             return false;

  2281.         }

  2282. 

  2283.         // ---------------------------------------------------------------

  2284.         // set icon

  2285. 

  2286.         if (std::strcmp(fDescriptor->label, "audiofile") == 0)

  2287.             pData->iconName = carla_strdup_safe("file");

  2288.         else if (std::strcmp(fDescriptor->label, "midifile") == 0)

  2289.             pData->iconName = carla_strdup_safe("file");

  2290. 

  2291.         // ---------------------------------------------------------------

  2292.         // get info

  2293. 

  2294.         if (name != nullptr && name[0] != '\0')

  2295.             pData->name = pData->engine->getUniquePluginName(name);

  2296.         else if (fDescriptor->name != nullptr && fDescriptor->name[0] != '\0')

  2297.             pData->name = pData->engine->getUniquePluginName(fDescriptor->name);

  2298.         else

  2299.             pData->name = pData->engine->getUniquePluginName(label);

  2300. 

  2301.         {

  2302.             CARLA_ASSERT(fHost.uiName == nullptr);

  2303. 

  2304.             char uiName[std::strlen(pData->name)+6+1];

  2305.             std::strcpy(uiName, pData->name);

  2306.             std::strcat(uiName, " (GUI)");

  2307. 

  2308.             fHost.uiName = carla_strdup(uiName);

  2309.         }

  2310. 

  2311.         // ---------------------------------------------------------------

  2312.         // register client

  2313. 

  2314.         pData->client = pData->engine->addClient(this);

  2315. 

  2316.         if (pData->client == nullptr || ! pData->client->isOk())

  2317.         {

  2318.             pData->engine->setLastError("Failed to register plugin client");

  2319.             return false;

  2320.         }

  2321. 

  2322.         // ---------------------------------------------------------------

  2323.         // initialize plugin

  2324. 

  2325.         fHandle = fDescriptor->instantiate(&fHost);

  2326. 

  2327.         if (fHandle == nullptr)

  2328.         {

  2329.             pData->engine->setLastError("Plugin failed to initialize");

  2330.             return false;

  2331.         }

  2332. 

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

  2334.         // set default options

  2335. 

  2336.         const bool hasMidiProgs(fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_count(fHandle) > 0);

  2337. 

  2338.         pData->options = 0x0;

  2339. 

  2340.         if (hasMidiProgs && (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_PROGRAM_CHANGES) == 0)

  2341.             pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  2342. 

  2343.         if (getMidiInCount() > 0 || (fDescriptor->hints & NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS) != 0)

  2344.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2345. 

  2346.         if (pData->engine->getOptions().forceStereo)

  2347.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2348. 

  2349.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_CHANNEL_PRESSURE)

  2350.             pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  2351.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_NOTE_AFTERTOUCH)

  2352.             pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  2353.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_PITCHBEND)

  2354.             pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  2355.         if (fDescriptor->supports & NATIVE_PLUGIN_SUPPORTS_ALL_SOUND_OFF)

  2356.             pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  2357. 

  2358.         return true;

  2359.     }

  2360. 

  2361. 

  2362. private:

  2363.     NativePluginHandle   fHandle;

  2364.     NativePluginHandle   fHandle2;

  2365.     NativeHostDescriptor fHost;

  2366.     const NativePluginDescriptor* fDescriptor;

  2367. 

  2368.     bool fIsProcessing;

  2369.     bool fIsUiVisible;

  2370. 

  2371.     float**         fAudioInBuffers;

  2372.     float**         fAudioOutBuffers;

  2373.     uint32_t        fMidiEventCount;

  2374.     NativeMidiEvent fMidiEvents[kPluginMaxMidiEvents*2];

  2375. 

  2376.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  2377. 

  2378.     NativePluginMidiData fMidiIn;

  2379.     NativePluginMidiData fMidiOut;

  2380. 

  2381.     NativeTimeInfo fTimeInfo;

  2382. 

  2383.     // -------------------------------------------------------------------

  2384. 

  2385.     #define handlePtr ((CarlaPluginNative*)handle)

  2386. 

  2387.     static uint32_t carla_host_get_buffer_size(NativeHostHandle handle) noexcept

  2388.     {

  2389.         return handlePtr->handleGetBufferSize();

  2390.     }

  2391. 

  2392.     static double carla_host_get_sample_rate(NativeHostHandle handle) noexcept

  2393.     {

  2394.         return handlePtr->handleGetSampleRate();

  2395.     }

  2396. 

  2397.     static bool carla_host_is_offline(NativeHostHandle handle) noexcept

  2398.     {

  2399.         return handlePtr->handleIsOffline();

  2400.     }

  2401. 

  2402.     static const NativeTimeInfo* carla_host_get_time_info(NativeHostHandle handle) noexcept

  2403.     {

  2404.         return handlePtr->handleGetTimeInfo();

  2405.     }

  2406. 

  2407.     static bool carla_host_write_midi_event(NativeHostHandle handle, const NativeMidiEvent* event)

  2408.     {

  2409.         return handlePtr->handleWriteMidiEvent(event);

  2410.     }

  2411. 

  2412.     static void carla_host_ui_parameter_changed(NativeHostHandle handle, uint32_t index, float value)

  2413.     {

  2414.         handlePtr->handleUiParameterChanged(index, value);

  2415.     }

  2416. 

  2417.     static void carla_host_ui_custom_data_changed(NativeHostHandle handle, const char* key, const char* value)

  2418.     {

  2419.         handlePtr->handleUiCustomDataChanged(key, value);

  2420.     }

  2421. 

  2422.     static void carla_host_ui_closed(NativeHostHandle handle)

  2423.     {

  2424.         handlePtr->handleUiClosed();

  2425.     }

  2426. 

  2427.     static const char* carla_host_ui_open_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2428.     {

  2429.         return handlePtr->handleUiOpenFile(isDir, title, filter);

  2430.     }

  2431. 

  2432.     static const char* carla_host_ui_save_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2433.     {

  2434.         return handlePtr->handleUiSaveFile(isDir, title, filter);

  2435.     }

  2436. 

  2437.     static intptr_t carla_host_dispatcher(NativeHostHandle handle, NativeHostDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  2438.     {

  2439.         return handlePtr->handleDispatcher(opcode, index, value, ptr, opt);

  2440.     }

  2441. 

  2442.     #undef handlePtr

  2443. 

  2444.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginNative)

  2445. };

  2446. 

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

  2448. 

  2449. CarlaPlugin* CarlaPlugin::newNative(const Initializer& init)

  2450. {

  2451.     carla_debug("CarlaPlugin::newNative({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "})", init.engine, init.filename, init.name, init.label, init.uniqueId);

  2452. 

  2453.     CarlaPluginNative* const plugin(new CarlaPluginNative(init.engine, init.id));

  2454. 

  2455.     if (! plugin->init(init.name, init.label))

  2456.     {

  2457.         delete plugin;

  2458.         return nullptr;

  2459.     }

  2460. 

  2461.     plugin->reload();

  2462. 

  2463.     bool canRun = true;

  2464. 

  2465.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK)

  2466.     {

  2467.         if (! plugin->canRunInRack())

  2468.         {

  2469.             init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo Internal plugins, sorry!");

  2470.             canRun = false;

  2471.         }

  2472.         else if (plugin->getCVInCount() > 0 || plugin->getCVInCount() > 0)

  2473.         {

  2474.             init.engine->setLastError("Carla's rack mode cannot work with plugins that have CV ports, sorry!");

  2475.             canRun = false;

  2476.         }

  2477.     }

  2478.     else if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_PATCHBAY && (plugin->getCVInCount() > 0 || plugin->getCVInCount() > 0))

  2479.     {

  2480.         init.engine->setLastError("CV ports in patchbay mode is still TODO");

  2481.         canRun = false;

  2482.     }

  2483. 

  2484.     if (! canRun)

  2485.     {

  2486.         delete plugin;

  2487.         return nullptr;

  2488.     }

  2489. 

  2490.     return plugin;

  2491. }

  2492. 

  2493. // -----------------------------------------------------------------------

  2494. 

  2495. CARLA_BACKEND_END_NAMESPACE