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

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  1. /*

  2.  * Carla Native Plugin

  3.  * Copyright (C) 2012-2013 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. 

  20. #ifdef WANT_NATIVE

  21. 

  22. #include "CarlaNative.h"

  23. #include "CarlaHost.h"

  24. 

  25. #include <QtCore/QStringList>

  26. 

  27. extern const char* carla_file_callback(FileCallbackOpcode action, bool isDir, const char* title, const char* filter);

  28. 

  29. CARLA_BACKEND_START_NAMESPACE

  30. 

  31. #if 0

  32. }

  33. #endif

  34. 

  35. struct NativePluginMidiData {

  36.     uint32_t  count;

  37.     uint32_t* indexes;

  38.     CarlaEngineEventPort** ports;

  39. 

  40.     NativePluginMidiData()

  41.         : count(0),

  42.           indexes(nullptr),

  43.           ports(nullptr) {}

  44. 

  45.     ~NativePluginMidiData()

  46.     {

  47.         CARLA_ASSERT_INT(count == 0, count);

  48.         CARLA_ASSERT(indexes == nullptr);

  49.         CARLA_ASSERT(ports == nullptr);

  50.     }

  51. 

  52.     void createNew(const uint32_t newCount)

  53.     {

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

  55.         CARLA_SAFE_ASSERT_RETURN(indexes == nullptr,);

  56.         CARLA_SAFE_ASSERT_RETURN(ports == nullptr,);

  57.         CARLA_SAFE_ASSERT_RETURN(newCount > 0,);

  58. 

  59.         ports   = new CarlaEngineEventPort*[newCount];

  60.         indexes = new uint32_t[newCount];

  61.         count   = newCount;

  62. 

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

  64.             ports[i] = nullptr;

  65. 

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

  67.             indexes[i] = 0;

  68.     }

  69. 

  70.     void clear()

  71.     {

  72.         if (ports != nullptr)

  73.         {

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

  75.             {

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

  77.                 {

  78.                     delete ports[i];

  79.                     ports[i] = nullptr;

  80.                 }

  81.             }

  82. 

  83.             delete[] ports;

  84.             ports = nullptr;

  85.         }

  86. 

  87.         if (indexes != nullptr)

  88.         {

  89.             delete[] indexes;

  90.             indexes = nullptr;

  91.         }

  92. 

  93.         count = 0;

  94.     }

  95. 

  96.     void initBuffers()

  97.     {

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

  99.         {

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

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

  102.         }

  103.     }

  104. 

  105.     CARLA_DECLARE_NON_COPY_STRUCT(NativePluginMidiData)

  106. };

  107. 

  108. class NativePlugin : public CarlaPlugin

  109. {

  110. public:

  111.     NativePlugin(CarlaEngine* const engine, const unsigned int id)

  112.         : CarlaPlugin(engine, id),

  113.           fHandle(nullptr),

  114.           fHandle2(nullptr),

  115.           fDescriptor(nullptr),

  116.           fIsProcessing(false),

  117.           fIsUiVisible(false),

  118.           fAudioInBuffers(nullptr),

  119.           fAudioOutBuffers(nullptr),

  120.           fMidiEventCount(0)

  121.     {

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

  123. 

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

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

  126.         carla_zeroStruct<NativeTimeInfo>(fTimeInfo);

  127. 

  128.         fHost.handle      = this;

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

  130.         fHost.uiName      = nullptr;

  131. 

  132.         fHost.get_buffer_size        = carla_host_get_buffer_size;

  133.         fHost.get_sample_rate        = carla_host_get_sample_rate;

  134.         fHost.is_offline             = carla_host_is_offline;

  135.         fHost.get_time_info          = carla_host_get_time_info;

  136.         fHost.write_midi_event       = carla_host_write_midi_event;

  137.         fHost.ui_parameter_changed   = carla_host_ui_parameter_changed;

  138.         fHost.ui_custom_data_changed = carla_host_ui_custom_data_changed;

  139.         fHost.ui_closed              = carla_host_ui_closed;

  140.         fHost.ui_open_file           = carla_host_ui_open_file;

  141.         fHost.ui_save_file           = carla_host_ui_save_file;

  142.         fHost.dispatcher             = carla_host_dispatcher;

  143.     }

  144. 

  145.     ~NativePlugin() override

  146.     {

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

  148. 

  149.         // close UI

  150.         if (pData->hints & PLUGIN_HAS_UI)

  151.         {

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

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

  154.         }

  155. 

  156.         pData->singleMutex.lock();

  157.         pData->masterMutex.lock();

  158. 

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

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

  161. 

  162.         CARLA_ASSERT(! fIsProcessing);

  163. 

  164.         if (pData->active)

  165.         {

  166.             deactivate();

  167.             pData->active = false;

  168.         }

  169. 

  170.         if (fDescriptor != nullptr)

  171.         {

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

  173.             {

  174.                 if (fHandle != nullptr)

  175.                     fDescriptor->cleanup(fHandle);

  176.                 if (fHandle2 != nullptr)

  177.                     fDescriptor->cleanup(fHandle2);

  178.             }

  179. 

  180.             fHandle  = nullptr;

  181.             fHandle2 = nullptr;

  182.             fDescriptor = nullptr;

  183.         }

  184. 

  185.         if (fHost.resourceDir != nullptr)

  186.         {

  187.             delete[] fHost.resourceDir;

  188.             fHost.resourceDir = nullptr;

  189.         }

  190. 

  191.         if (fHost.uiName != nullptr)

  192.         {

  193.             delete[] fHost.uiName;

  194.             fHost.uiName = nullptr;

  195.         }

  196. 

  197.         clearBuffers();

  198.     }

  199. 

  200.     // -------------------------------------------------------------------

  201.     // Information (base)

  202. 

  203.     PluginType getType() const noexcept override

  204.     {

  205.         return PLUGIN_INTERNAL;

  206.     }

  207. 

  208.     PluginCategory getCategory() const noexcept override

  209.     {

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

  211. 

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

  213.     }

  214. 

  215.     // -------------------------------------------------------------------

  216.     // Information (count)

  217. 

  218.     uint32_t getMidiInCount() const noexcept override

  219.     {

  220.         return fMidiIn.count;

  221.     }

  222. 

  223.     uint32_t getMidiOutCount() const noexcept override

  224.     {

  225.         return fMidiOut.count;

  226.     }

  227. 

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

  229.     {

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

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

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

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

  234. 

  235.         // FIXME - try

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

  237.             return param->scalePointCount;

  238. 

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

  240.         return 0;

  241.     }

  242. 

  243.     // -------------------------------------------------------------------

  244.     // Information (current data)

  245. 

  246.     // nothing

  247. 

  248.     // -------------------------------------------------------------------

  249.     // Information (per-plugin data)

  250. 

  251.     unsigned int getOptionsAvailable() const noexcept override

  252.     {

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

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

  255. 

  256.         // FIXME - try

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

  258. 

  259.         unsigned int options = 0x0;

  260. 

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

  262.             options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  263. 

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

  265.             options |= PLUGIN_OPTION_FIXED_BUFFERS;

  266. 

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

  268.         {

  269.             if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  270.                 options |= PLUGIN_OPTION_FORCE_STEREO;

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

  272.                 options |= PLUGIN_OPTION_FORCE_STEREO;

  273.         }

  274. 

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

  276.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

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

  278.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

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

  280.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

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

  282.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

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

  284.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  285. 

  286.         return options;

  287.     }

  288. 

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

  290.     {

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

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

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

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

  295. 

  296.         // FIXME - try

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

  298.     }

  299. 

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

  301.     {

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

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

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

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

  306.         CARLA_SAFE_ASSERT_RETURN(scalePointId < getParameterScalePointCount(parameterId), 0.0f);

  307. 

  308.         // FIXME - try

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

  310.         {

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

  312.             return scalePoint->value;

  313.         }

  314. 

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

  316.         return 0.0f;

  317.     }

  318. 

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

  320.     {

  321.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  322. 

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

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

  325.         else

  326.             CarlaPlugin::getLabel(strBuf);

  327.     }

  328. 

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

  330.     {

  331.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  332. 

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

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

  335.         else

  336.             CarlaPlugin::getMaker(strBuf);

  337.     }

  338. 

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

  340.     {

  341.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  342. 

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

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

  345.         else

  346.             CarlaPlugin::getCopyright(strBuf);

  347.     }

  348. 

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

  350.     {

  351.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  352. 

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

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

  355.         else

  356.             CarlaPlugin::getRealName(strBuf);

  357.     }

  358. 

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

  360.     {

  361.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  363.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  365. 

  366.         // FIXME - try

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

  368.         {

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

  370.             {

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

  372.                 return;

  373.             }

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

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

  376.         }

  377. 

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

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

  380.     }

  381. 

  382.     void getParameterText(const uint32_t parameterId, const float value, char* const strBuf) const noexcept override

  383.     {

  384.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

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

  387.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  389. 

  390.         // FIXME - try

  391.         if (const char* const text = fDescriptor->get_parameter_text(fHandle, parameterId, value))

  392.         {

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

  394.             return;

  395.         }

  396. 

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

  398.         CarlaPlugin::getParameterText(parameterId, value, strBuf);

  399.     }

  400. 

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

  402.     {

  403.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  405.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  407. 

  408.         // FIXME - try

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

  410.         {

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

  412.             {

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

  414.                 return;

  415.             }

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

  417.         }

  418. 

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

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

  421.     }

  422. 

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

  424.     {

  425.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  427.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  429.         CARLA_SAFE_ASSERT_RETURN(scalePointId < getParameterScalePointCount(parameterId),);

  430. 

  431.         // FIXME - try

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

  433.         {

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

  435. 

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

  437.             {

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

  439.                 return;

  440.             }

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

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

  443.         }

  444. 

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

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

  447.     }

  448. 

  449.     // -------------------------------------------------------------------

  450.     // Set data (state)

  451. 

  452.     void prepareForSave() override

  453.     {

  454.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  455.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  456. 

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

  458.         {

  459.             char strBuf[STR_MAX+1];

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

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

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

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

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

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

  466. 

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

  468.         }

  469. 

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

  471.             return;

  472. 

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

  474.         {

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

  476.             std::free(data);

  477.         }

  478.     }

  479. 

  480.     // -------------------------------------------------------------------

  481.     // Set data (internal stuff)

  482. 

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

  484.     {

  485.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  486.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  488. 

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

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

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

  492. 

  493.         if (fHost.uiName != nullptr)

  494.             delete[] fHost.uiName;

  495.         fHost.uiName = carla_strdup(uiName);

  496. 

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

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

  499. 

  500.         CarlaPlugin::setName(newName);

  501.     }

  502. 

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

  504.     {

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

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

  507. 

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

  509.     }

  510. 

  511.     // -------------------------------------------------------------------

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

  513. 

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

  515.     {

  516.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  518.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  520. 

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

  522. 

  523.         // FIXME - try

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

  525. 

  526.         if (fHandle2 != nullptr)

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

  528. 

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

  530.     }

  531. 

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

  533.     {

  534.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  535.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

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

  538.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

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

  540. 

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

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

  543. 

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

  545.         {

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

  547.             {

  548.                 const ScopedSingleProcessLocker spl(this, true);

  549. 

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

  551. 

  552.                 if (fHandle2 != nullptr)

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

  554.             }

  555.         }

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

  557.         {

  558.             QStringList midiProgramList(QString(value).split(":", QString::SkipEmptyParts));

  559. 

  560.             if (midiProgramList.count() == MAX_MIDI_CHANNELS)

  561.             {

  562.                 uint8_t channel = 0;

  563.                 foreach (const QString& midiProg, midiProgramList)

  564.                 {

  565.                     bool ok;

  566.                     const uint index(midiProg.toUInt(&ok));

  567. 

  568.                     if (ok && index < pData->midiprog.count)

  569.                     {

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

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

  572. 

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

  574. 

  575.                         if (fHandle2 != nullptr)

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

  577. 

  578.                         fCurMidiProgs[channel] = index;

  579. 

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

  581.                         {

  582.                             pData->midiprog.current = index;

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

  584.                         }

  585.                     }

  586. 

  587.                     ++channel;

  588.                 }

  589.             }

  590.         }

  591.         else

  592.         {

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

  594.             {

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

  596. 

  597.                 if (fHandle2 != nullptr)

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

  599.             }

  600. 

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

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

  603.         }

  604. 

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

  606.     }

  607. 

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

  609.     {

  610.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  611.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  613. 

  614.         // TODO, put into check below

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

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

  617. 

  618.         if (index >= 0)

  619.         {

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

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

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

  623. 

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

  625. 

  626.             try {

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

  628.             } catch(...) {}

  629. 

  630.             if (fHandle2 != nullptr)

  631.             {

  632.                 try {

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

  634.                 } catch(...) {}

  635.             }

  636. 

  637.             fCurMidiProgs[channel] = index;

  638.         }

  639. 

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

  641.     }

  642. 

  643.     // -------------------------------------------------------------------

  644.     // Set ui stuff

  645. 

  646.     void showCustomUI(const bool yesNo) override

  647.     {

  648.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  649.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  650. 

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

  652.             return;

  653. 

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

  655.         fIsUiVisible = yesNo;

  656. 

  657.         if (! yesNo)

  658.             return;

  659. 

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

  661.         {

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

  663.             {

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

  665. 

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

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

  668.             }

  669.         }

  670. 

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

  672.         {

  673.             const uint32_t index   = pData->midiprog.current;

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

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

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

  677. 

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

  679.         }

  680. 

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

  682.         {

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

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

  685.         }

  686.     }

  687. 

  688.     void idle() override

  689.     {

  690.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  691.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  692. 

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

  694.             fDescriptor->ui_idle(fHandle);

  695. 

  696.         CarlaPlugin::idle();

  697.     }

  698. 

  699.     // -------------------------------------------------------------------

  700.     // Plugin state

  701. 

  702.     void reload() override

  703.     {

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

  705.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  706.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  708. 

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

  710. 

  711.         // Safely disable plugin for reload

  712.         const ScopedDisabler sd(this);

  713. 

  714.         if (pData->active)

  715.             deactivate();

  716. 

  717.         clearBuffers();

  718. 

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

  720. 

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

  722. 

  723.         bool forcedStereoIn, forcedStereoOut;

  724.         forcedStereoIn = forcedStereoOut = false;

  725. 

  726.         bool needsCtrlIn, needsCtrlOut;

  727.         needsCtrlIn = needsCtrlOut = false;

  728. 

  729.         aIns   = fDescriptor->audioIns;

  730.         aOuts  = fDescriptor->audioOuts;

  731.         mIns   = fDescriptor->midiIns;

  732.         mOuts  = fDescriptor->midiOuts;

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

  734. 

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

  736.         {

  737.             if (fHandle2 == nullptr)

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

  739. 

  740.             if (fHandle2 != nullptr)

  741.             {

  742.                 if (aIns == 1)

  743.                 {

  744.                     aIns = 2;

  745.                     forcedStereoIn = true;

  746.                 }

  747. 

  748.                 if (aOuts == 1)

  749.                 {

  750.                     aOuts = 2;

  751.                     forcedStereoOut = true;

  752.                 }

  753.             }

  754.         }

  755. 

  756.         if (aIns > 0)

  757.         {

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

  759.             fAudioInBuffers = new float*[aIns];

  760. 

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

  762.                 fAudioInBuffers[i] = nullptr;

  763.         }

  764. 

  765.         if (aOuts > 0)

  766.         {

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

  768.             fAudioOutBuffers = new float*[aOuts];

  769.             needsCtrlIn = true;

  770. 

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

  772.                 fAudioOutBuffers[i] = nullptr;

  773.         }

  774. 

  775.         if (mIns > 0)

  776.         {

  777.             fMidiIn.createNew(mIns);

  778.             needsCtrlIn = (mIns == 1);

  779.         }

  780. 

  781.         if (mOuts > 0)

  782.         {

  783.             fMidiOut.createNew(mOuts);

  784.             needsCtrlOut = (mOuts == 1);

  785.         }

  786. 

  787.         if (params > 0)

  788.         {

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

  790.         }

  791. 

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

  793.         CarlaString portName;

  794. 

  795.         // Audio Ins

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

  797.         {

  798.             portName.clear();

  799. 

  800.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  801.             {

  802.                 portName  = pData->name;

  803.                 portName += ":";

  804.             }

  805. 

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

  807.             {

  808.                 portName += "input_";

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

  810.             }

  811.             else

  812.                 portName += "input";

  813. 

  814.             portName.truncate(portNameSize);

  815. 

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

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

  818. 

  819.             if (forcedStereoIn)

  820.             {

  821.                 portName += "_2";

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

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

  824.                 break;

  825.             }

  826.         }

  827. 

  828.         // Audio Outs

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

  830.         {

  831.             portName.clear();

  832. 

  833.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  834.             {

  835.                 portName  = pData->name;

  836.                 portName += ":";

  837.             }

  838. 

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

  840.             {

  841.                 portName += "output_";

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

  843.             }

  844.             else

  845.                 portName += "output";

  846. 

  847.             portName.truncate(portNameSize);

  848. 

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

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

  851. 

  852.             if (forcedStereoOut)

  853.             {

  854.                 portName += "_2";

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

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

  857.                 break;

  858.             }

  859.         }

  860. 

  861.         // MIDI Input (only if multiple)

  862.         if (mIns > 1)

  863.         {

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

  865.             {

  866.                 portName.clear();

  867. 

  868.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  869.                 {

  870.                     portName  = pData->name;

  871.                     portName += ":";

  872.                 }

  873. 

  874.                 portName += "midi-in_";

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

  876.                 portName.truncate(portNameSize);

  877. 

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

  879.                 fMidiIn.indexes[j] = j;

  880.             }

  881.         }

  882. 

  883.         // MIDI Output (only if multiple)

  884.         if (mOuts > 1)

  885.         {

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

  887.             {

  888.                 portName.clear();

  889. 

  890.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  891.                 {

  892.                     portName  = pData->name;

  893.                     portName += ":";

  894.                 }

  895. 

  896.                 portName += "midi-out_";

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

  898.                 portName.truncate(portNameSize);

  899. 

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

  901.                 fMidiOut.indexes[j] = j;

  902.             }

  903.         }

  904. 

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

  906.         {

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

  908. 

  909.             CARLA_SAFE_ASSERT_CONTINUE(paramInfo != nullptr);

  910. 

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

  912.             pData->param.data[j].hints  = 0x0;

  913.             pData->param.data[j].index  = j;

  914.             pData->param.data[j].rindex = j;

  915.             pData->param.data[j].midiCC = -1;

  916.             pData->param.data[j].midiChannel = 0;

  917. 

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

  919. 

  920.             // min value

  921.             min = paramInfo->ranges.min;

  922. 

  923.             // max value

  924.             max = paramInfo->ranges.max;

  925. 

  926.             if (min > max)

  927.                 max = min;

  928.             else if (max < min)

  929.                 min = max;

  930. 

  931.             if (max - min == 0.0f)

  932.             {

  933.                 carla_stderr2("WARNING - Broken plugin parameter '%s': max - min == 0.0f", paramInfo->name);

  934.                 max = min + 0.1f;

  935.             }

  936. 

  937.             // default value

  938.             def = paramInfo->ranges.def;

  939. 

  940.             if (def < min)

  941.                 def = min;

  942.             else if (def > max)

  943.                 def = max;

  944. 

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

  946.             {

  947.                 min *= sampleRate;

  948.                 max *= sampleRate;

  949.                 def *= sampleRate;

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

  951.             }

  952. 

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

  954.             {

  955.                 step = max - min;

  956.                 stepSmall = step;

  957.                 stepLarge = step;

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

  959.             }

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

  961.             {

  962.                 step = 1.0f;

  963.                 stepSmall = 1.0f;

  964.                 stepLarge = 10.0f;

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

  966.             }

  967.             else

  968.             {

  969.                 float range = max - min;

  970.                 step = range/100.0f;

  971.                 stepSmall = range/1000.0f;

  972.                 stepLarge = range/10.0f;

  973.             }

  974. 

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

  976.             {

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

  978.                 needsCtrlOut = true;

  979.             }

  980.             else

  981.             {

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

  983.                 needsCtrlIn = true;

  984.             }

  985. 

  986.             // extra parameter hints

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

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

  989. 

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

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

  992. 

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

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

  995. 

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

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

  998. 

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

  1000.                 pData->param.data[j].hints |= PARAMETER_USES_CUSTOM_TEXT;

  1001. 

  1002.             pData->param.ranges[j].min = min;

  1003.             pData->param.ranges[j].max = max;

  1004.             pData->param.ranges[j].def = def;

  1005.             pData->param.ranges[j].step = step;

  1006.             pData->param.ranges[j].stepSmall = stepSmall;

  1007.             pData->param.ranges[j].stepLarge = stepLarge;

  1008.         }

  1009. 

  1010.         if (needsCtrlIn)

  1011.         {

  1012.             portName.clear();

  1013. 

  1014.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1015.             {

  1016.                 portName  = pData->name;

  1017.                 portName += ":";

  1018.             }

  1019. 

  1020.             portName += "events-in";

  1021.             portName.truncate(portNameSize);

  1022. 

  1023.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  1024.         }

  1025. 

  1026.         if (needsCtrlOut)

  1027.         {

  1028.             portName.clear();

  1029. 

  1030.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1031.             {

  1032.                 portName  = pData->name;

  1033.                 portName += ":";

  1034.             }

  1035. 

  1036.             portName += "events-out";

  1037.             portName.truncate(portNameSize);

  1038. 

  1039.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  1040.         }

  1041. 

  1042.         if (forcedStereoIn || forcedStereoOut)

  1043.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1044.         else

  1045.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  1046. 

  1047.         // plugin hints

  1048.         pData->hints = 0x0;

  1049. 

  1050.         if (aOuts > 0 && (aIns == aOuts || aIns == 1))

  1051.             pData->hints |= PLUGIN_CAN_DRYWET;

  1052. 

  1053.         if (aOuts > 0)

  1054.             pData->hints |= PLUGIN_CAN_VOLUME;

  1055. 

  1056.         if (aOuts >= 2 && aOuts % 2 == 0)

  1057.             pData->hints |= PLUGIN_CAN_BALANCE;

  1058. 

  1059.         // native plugin hints

  1060.         if (fDescriptor->hints & ::PLUGIN_IS_RTSAFE)

  1061.             pData->hints |= PLUGIN_IS_RTSAFE;

  1062.         if (fDescriptor->hints & ::PLUGIN_IS_SYNTH)

  1063.             pData->hints |= PLUGIN_IS_SYNTH;

  1064.         if (fDescriptor->hints & ::PLUGIN_HAS_UI)

  1065.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  1066.         if (fDescriptor->hints & ::PLUGIN_NEEDS_SINGLE_THREAD)

  1067.             pData->hints |= PLUGIN_NEEDS_SINGLE_THREAD;

  1068.         if (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS)

  1069.             pData->hints |= PLUGIN_NEEDS_FIXED_BUFFERS;

  1070. 

  1071.         // extra plugin hints

  1072.         pData->extraHints = 0x0;

  1073. 

  1074.         if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0) && mIns <= 1 && mOuts <= 1)

  1075.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1076. 

  1077.         bufferSizeChanged(pData->engine->getBufferSize());

  1078.         reloadPrograms(true);

  1079. 

  1080.         if (pData->active)

  1081.             activate();

  1082. 

  1083.         carla_debug("NativePlugin::reload() - end");

  1084.     }

  1085. 

  1086.     void reloadPrograms(const bool init) override

  1087.     {

  1088.         carla_debug("NativePlugin::reloadPrograms(%s)", bool2str(init));

  1089.         uint32_t i, oldCount  = pData->midiprog.count;

  1090.         const int32_t current = pData->midiprog.current;

  1091. 

  1092.         // Delete old programs

  1093.         pData->midiprog.clear();

  1094. 

  1095.         // Query new programs

  1096.         uint32_t count = 0;

  1097.         if (fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_info != nullptr && fDescriptor->set_midi_program != nullptr)

  1098.             count = fDescriptor->get_midi_program_count(fHandle);

  1099. 

  1100.         if (count > 0)

  1101.         {

  1102.             pData->midiprog.createNew(count);

  1103. 

  1104.             // Update data

  1105.             for (i=0; i < count; ++i)

  1106.             {

  1107.                 const NativeMidiProgram* const mpDesc(fDescriptor->get_midi_program_info(fHandle, i));

  1108.                 CARLA_ASSERT(mpDesc != nullptr);

  1109.                 CARLA_ASSERT(mpDesc->name != nullptr);

  1110. 

  1111.                 pData->midiprog.data[i].bank    = mpDesc->bank;

  1112.                 pData->midiprog.data[i].program = mpDesc->program;

  1113.                 pData->midiprog.data[i].name    = carla_strdup(mpDesc->name);

  1114.             }

  1115.         }

  1116. 

  1117. #ifndef BUILD_BRIDGE

  1118.         // Update OSC Names

  1119.         if (pData->engine->isOscControlRegistered())

  1120.         {

  1121.             pData->engine->oscSend_control_set_midi_program_count(pData->id, count);

  1122. 

  1123.             for (i=0; i < count; ++i)

  1124.                 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);

  1125.         }

  1126. #endif

  1127. 

  1128.         if (init)

  1129.         {

  1130.             if (count > 0)

  1131.                 setMidiProgram(0, false, false, false);

  1132.         }

  1133.         else

  1134.         {

  1135.             // Check if current program is invalid

  1136.             bool programChanged = false;

  1137. 

  1138.             if (count == oldCount+1)

  1139.             {

  1140.                 // one midi program added, probably created by user

  1141.                 pData->midiprog.current = oldCount;

  1142.                 programChanged = true;

  1143.             }

  1144.             else if (current < 0 && count > 0)

  1145.             {

  1146.                 // programs exist now, but not before

  1147.                 pData->midiprog.current = 0;

  1148.                 programChanged = true;

  1149.             }

  1150.             else if (current >= 0 && count == 0)

  1151.             {

  1152.                 // programs existed before, but not anymore

  1153.                 pData->midiprog.current = -1;

  1154.                 programChanged = true;

  1155.             }

  1156.             else if (current >= static_cast<int32_t>(count))

  1157.             {

  1158.                 // current midi program > count

  1159.                 pData->midiprog.current = 0;

  1160.                 programChanged = true;

  1161.             }

  1162.             else

  1163.             {

  1164.                 // no change

  1165.                 pData->midiprog.current = current;

  1166.             }

  1167. 

  1168.             if (programChanged)

  1169.                 setMidiProgram(pData->midiprog.current, true, true, true);

  1170. 

  1171.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1172.         }

  1173.     }

  1174. 

  1175.     // -------------------------------------------------------------------

  1176.     // Plugin processing

  1177. 

  1178.     void activate() noexcept override

  1179.     {

  1180.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1181.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1182. 

  1183.         if (fDescriptor->activate != nullptr)

  1184.         {

  1185.             try {

  1186.                 fDescriptor->activate(fHandle);

  1187.             } catch(...) {}

  1188. 

  1189.             if (fHandle2 != nullptr)

  1190.             {

  1191.                 try {

  1192.                     fDescriptor->activate(fHandle2);

  1193.                 } catch(...) {}

  1194.             }

  1195.         }

  1196.     }

  1197. 

  1198.     void deactivate() noexcept override

  1199.     {

  1200.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1201.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1202. 

  1203.         if (fDescriptor->deactivate != nullptr)

  1204.         {

  1205.             try {

  1206.                 fDescriptor->deactivate(fHandle);

  1207.             } catch(...) {}

  1208. 

  1209.             if (fHandle2 != nullptr)

  1210.             {

  1211.                 try {

  1212.                     fDescriptor->deactivate(fHandle2);

  1213.                 } catch(...) {}

  1214.             }

  1215.         }

  1216.     }

  1217. 

  1218.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames) override

  1219.     {

  1220.         uint32_t i/*, k*/;

  1221. 

  1222.         // --------------------------------------------------------------------------------------------------------

  1223.         // Check if active

  1224. 

  1225.         if (! pData->active)

  1226.         {

  1227.             // disable any output sound

  1228.             for (i=0; i < pData->audioOut.count; ++i)

  1229.                 FLOAT_CLEAR(outBuffer[i], frames);

  1230. 

  1231.             return;

  1232.         }

  1233. 

  1234.         fMidiEventCount = 0;

  1235.         carla_zeroStruct<NativeMidiEvent>(fMidiEvents, kPluginMaxMidiEvents*2);

  1236. 

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

  1238.         // Check if needs reset

  1239. 

  1240.         if (pData->needsReset)

  1241.         {

  1242.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1243.             {

  1244.                 for (uint8_t k=0, i=MAX_MIDI_CHANNELS; k < MAX_MIDI_CHANNELS; ++k)

  1245.                 {

  1246.                     fMidiEvents[k].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + k);

  1247.                     fMidiEvents[k].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1248.                     fMidiEvents[k].data[2] = 0;

  1249.                     fMidiEvents[k].size    = 3;

  1250. 

  1251.                     fMidiEvents[k+i].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + k);

  1252.                     fMidiEvents[k+i].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1253.                     fMidiEvents[k+i].data[2] = 0;

  1254.                     fMidiEvents[k+i].size    = 3;

  1255.                 }

  1256. 

  1257.                 fMidiEventCount = MAX_MIDI_CHANNELS*2;

  1258.             }

  1259.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1260.             {

  1261.                 for (uint8_t k=0; k < MAX_MIDI_NOTE; ++k)

  1262.                 {

  1263.                     fMidiEvents[k].data[0] = static_cast<uint8_t>(MIDI_STATUS_NOTE_OFF + pData->ctrlChannel);

  1264.                     fMidiEvents[k].data[1] = k;

  1265.                     fMidiEvents[k].data[2] = 0;

  1266.                     fMidiEvents[k].size    = 3;

  1267.                 }

  1268. 

  1269.                 fMidiEventCount = MAX_MIDI_NOTE;

  1270.             }

  1271. 

  1272.             pData->needsReset = false;

  1273.         }

  1274. 

  1275.         CARLA_PROCESS_CONTINUE_CHECK;

  1276. 

  1277.         // --------------------------------------------------------------------------------------------------------

  1278.         // Set TimeInfo

  1279. 

  1280.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1281. 

  1282.         fTimeInfo.playing = timeInfo.playing;

  1283.         fTimeInfo.frame   = timeInfo.frame;

  1284.         fTimeInfo.usecs   = timeInfo.usecs;

  1285. 

  1286.         if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1287.         {

  1288.             fTimeInfo.bbt.valid = true;

  1289. 

  1290.             fTimeInfo.bbt.bar  = timeInfo.bbt.bar;

  1291.             fTimeInfo.bbt.beat = timeInfo.bbt.beat;

  1292.             fTimeInfo.bbt.tick = timeInfo.bbt.tick;

  1293.             fTimeInfo.bbt.barStartTick = timeInfo.bbt.barStartTick;

  1294. 

  1295.             fTimeInfo.bbt.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1296.             fTimeInfo.bbt.beatType    = timeInfo.bbt.beatType;

  1297. 

  1298.             fTimeInfo.bbt.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1299.             fTimeInfo.bbt.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1300.         }

  1301.         else

  1302.             fTimeInfo.bbt.valid = false;

  1303. 

  1304.         CARLA_PROCESS_CONTINUE_CHECK;

  1305. 

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

  1307.         // Event Input and Processing

  1308. 

  1309.         if (pData->event.portIn != nullptr)

  1310.         {

  1311.             // ----------------------------------------------------------------------------------------------------

  1312.             // MIDI Input (External)

  1313. 

  1314.             if (pData->extNotes.mutex.tryLock())

  1315.             {

  1316.                 while (fMidiEventCount < kPluginMaxMidiEvents*2 && ! pData->extNotes.data.isEmpty())

  1317.                 {

  1318.                     const ExternalMidiNote& note(pData->extNotes.data.getFirst(true));

  1319. 

  1320.                     CARLA_ASSERT(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1321. 

  1322.                     fMidiEvents[fMidiEventCount].data[0] = note.channel + (note.velo > 0) ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF;

  1323.                     fMidiEvents[fMidiEventCount].data[1] = note.note;

  1324.                     fMidiEvents[fMidiEventCount].data[2] = note.velo;

  1325.                     fMidiEvents[fMidiEventCount].size    = 3;

  1326. 

  1327.                     fMidiEventCount += 1;

  1328.                 }

  1329. 

  1330.                 pData->extNotes.mutex.unlock();

  1331. 

  1332.             } // End of MIDI Input (External)

  1333. 

  1334.             // ----------------------------------------------------------------------------------------------------

  1335.             // Event Input (System)

  1336. 

  1337.             bool allNotesOffSent = false;

  1338.             bool sampleAccurate  = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1339. 

  1340.             uint32_t time, nEvents = pData->event.portIn->getEventCount();

  1341.             uint32_t startTime  = 0;

  1342.             uint32_t timeOffset = 0;

  1343.             uint32_t nextBankId = 0;

  1344. 

  1345.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1346.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1347. 

  1348.             for (i=0; i < nEvents; ++i)

  1349.             {

  1350.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1351. 

  1352.                 time = event.time;

  1353. 

  1354.                 if (time >= frames)

  1355.                     continue;

  1356. 

  1357.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  1358. 

  1359.                 if (time > timeOffset && sampleAccurate)

  1360.                 {

  1361.                     if (processSingle(inBuffer, outBuffer, time - timeOffset, timeOffset))

  1362.                     {

  1363.                         startTime  = 0;

  1364.                         timeOffset = time;

  1365. 

  1366.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1367.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1368.                         else

  1369.                             nextBankId = 0;

  1370. 

  1371.                         if (fMidiEventCount > 0)

  1372.                         {

  1373.                             carla_zeroStruct<NativeMidiEvent>(fMidiEvents, fMidiEventCount);

  1374.                             fMidiEventCount = 0;

  1375.                         }

  1376.                     }

  1377.                     else

  1378.                         startTime += timeOffset;

  1379.                 }

  1380. 

  1381.                 // Control change

  1382.                 switch (event.type)

  1383.                 {

  1384.                 case kEngineEventTypeNull:

  1385.                     break;

  1386. 

  1387.                 case kEngineEventTypeControl:

  1388.                 {

  1389.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1390. 

  1391.                     switch (ctrlEvent.type)

  1392.                     {

  1393.                     case kEngineControlEventTypeNull:

  1394.                         break;

  1395. 

  1396.                     case kEngineControlEventTypeParameter:

  1397.                     {

  1398. #ifndef BUILD_BRIDGE

  1399.                         // Control backend stuff

  1400.                         if (event.channel == pData->ctrlChannel)

  1401.                         {

  1402.                             float value;

  1403. 

  1404.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) > 0)

  1405.                             {

  1406.                                 value = ctrlEvent.value;

  1407.                                 setDryWet(value, false, false);

  1408.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1409.                             }

  1410. 

  1411.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) > 0)

  1412.                             {

  1413.                                 value = ctrlEvent.value*127.0f/100.0f;

  1414.                                 setVolume(value, false, false);

  1415.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1416.                             }

  1417. 

  1418.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) > 0)

  1419.                             {

  1420.                                 float left, right;

  1421.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1422. 

  1423.                                 if (value < 0.0f)

  1424.                                 {

  1425.                                     left  = -1.0f;

  1426.                                     right = (value*2.0f)+1.0f;

  1427.                                 }

  1428.                                 else if (value > 0.0f)

  1429.                                 {

  1430.                                     left  = (value*2.0f)-1.0f;

  1431.                                     right = 1.0f;

  1432.                                 }

  1433.                                 else

  1434.                                 {

  1435.                                     left  = -1.0f;

  1436.                                     right = 1.0f;

  1437.                                 }

  1438. 

  1439.                                 setBalanceLeft(left, false, false);

  1440.                                 setBalanceRight(right, false, false);

  1441.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1442.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1443.                             }

  1444.                         }

  1445. #endif

  1446. 

  1447.                         // Control plugin parameters

  1448.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1449.                         {

  1450.                             if (pData->param.data[k].midiChannel != event.channel)

  1451.                                 continue;

  1452.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1453.                                 continue;

  1454.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1455.                                 continue;

  1456.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1457.                                 continue;

  1458. 

  1459.                             float value;

  1460. 

  1461.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1462.                             {

  1463.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1464.                             }

  1465.                             else

  1466.                             {

  1467.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1468. 

  1469.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1470.                                     value = std::rint(value);

  1471.                             }

  1472. 

  1473.                             setParameterValue(k, value, false, false, false);

  1474.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1475.                         }

  1476. 

  1477.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param <= 0x5F)

  1478.                         {

  1479.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1480.                                 continue;

  1481. 

  1482.                             fMidiEvents[fMidiEventCount].port    = 0;

  1483.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1484.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1485.                             fMidiEvents[fMidiEventCount].data[1] = static_cast<uint8_t>(ctrlEvent.param);

  1486.                             fMidiEvents[fMidiEventCount].data[2] = uint8_t(ctrlEvent.value*127.0f);

  1487.                             fMidiEvents[fMidiEventCount].size    = 3;

  1488. 

  1489.                             fMidiEventCount += 1;

  1490.                         }

  1491. 

  1492.                         break;

  1493.                     }

  1494. 

  1495.                     case kEngineControlEventTypeMidiBank:

  1496.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1497.                             nextBankId = ctrlEvent.param;

  1498.                         break;

  1499. 

  1500.                     case kEngineControlEventTypeMidiProgram:

  1501.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1502.                         {

  1503.                             const uint32_t nextProgramId(ctrlEvent.param);

  1504. 

  1505.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1506.                             {

  1507.                                 if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1508.                                 {

  1509.                                     fDescriptor->set_midi_program(fHandle, event.channel, nextBankId, nextProgramId);

  1510. 

  1511.                                     if (fHandle2 != nullptr)

  1512.                                         fDescriptor->set_midi_program(fHandle2, event.channel, nextBankId, nextProgramId);

  1513. 

  1514.                                     fCurMidiProgs[event.channel] = k;

  1515. 

  1516.                                     if (event.channel == pData->ctrlChannel)

  1517.                                         pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0f);

  1518. 

  1519.                                     break;

  1520.                                 }

  1521.                             }

  1522.                         }

  1523.                         break;

  1524. 

  1525.                     case kEngineControlEventTypeAllSoundOff:

  1526.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1527.                         {

  1528.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1529.                                 continue;

  1530. 

  1531.                             fMidiEvents[fMidiEventCount].port    = 0;

  1532.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1533.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1534.                             fMidiEvents[fMidiEventCount].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1535.                             fMidiEvents[fMidiEventCount].data[2] = 0;

  1536.                             fMidiEvents[fMidiEventCount].size    = 3;

  1537. 

  1538.                             fMidiEventCount += 1;

  1539.                         }

  1540.                         break;

  1541. 

  1542.                     case kEngineControlEventTypeAllNotesOff:

  1543.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1544.                         {

  1545.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1546.                             {

  1547.                                 allNotesOffSent = true;

  1548.                                 sendMidiAllNotesOffToCallback();

  1549.                             }

  1550. 

  1551.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1552.                                 continue;

  1553. 

  1554.                             fMidiEvents[fMidiEventCount].port    = 0;

  1555.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1556.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1557.                             fMidiEvents[fMidiEventCount].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1558.                             fMidiEvents[fMidiEventCount].data[2] = 0;

  1559.                             fMidiEvents[fMidiEventCount].size    = 3;

  1560. 

  1561.                             fMidiEventCount += 1;

  1562.                         }

  1563.                         break;

  1564.                     }

  1565. 

  1566.                     break;

  1567.                 }

  1568. 

  1569.                 case kEngineEventTypeMidi:

  1570.                 {

  1571.                     if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1572.                         continue;

  1573. 

  1574.                     const EngineMidiEvent& midiEvent(event.midi);

  1575. 

  1576.                     uint8_t status  = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1577.                     uint8_t channel = event.channel;

  1578. 

  1579.                     if (MIDI_IS_STATUS_CHANNEL_PRESSURE(status) && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1580.                         continue;

  1581.                     if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1582.                         continue;

  1583.                     if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1584.                         continue;

  1585.                     if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1586.                         continue;

  1587. 

  1588.                     // Fix bad note-off

  1589.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1590.                         status = MIDI_STATUS_NOTE_OFF;

  1591. 

  1592.                     fMidiEvents[fMidiEventCount].port = 0;

  1593.                     fMidiEvents[fMidiEventCount].time = sampleAccurate ? startTime : time;

  1594.                     fMidiEvents[fMidiEventCount].size = midiEvent.size;

  1595. 

  1596.                     fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(status + channel);

  1597.                     fMidiEvents[fMidiEventCount].data[1] = midiEvent.data[1];

  1598.                     fMidiEvents[fMidiEventCount].data[2] = midiEvent.data[2];

  1599.                     fMidiEvents[fMidiEventCount].data[3] = midiEvent.data[3];

  1600. 

  1601.                     fMidiEventCount += 1;

  1602. 

  1603.                     if (status == MIDI_STATUS_NOTE_ON)

  1604.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, channel, midiEvent.data[1], midiEvent.data[2]);

  1605.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1606.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, channel, midiEvent.data[1], 0.0f);

  1607. 

  1608.                     break;

  1609.                 }

  1610.                 }

  1611.             }

  1612. 

  1613.             pData->postRtEvents.trySplice();

  1614. 

  1615.             if (frames > timeOffset)

  1616.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset);

  1617. 

  1618.         } // End of Event Input and Processing

  1619. 

  1620.         // --------------------------------------------------------------------------------------------------------

  1621.         // Plugin processing (no events)

  1622. 

  1623.         else

  1624.         {

  1625.             processSingle(inBuffer, outBuffer, frames, 0);

  1626. 

  1627.         } // End of Plugin processing (no events)

  1628. 

  1629.         CARLA_PROCESS_CONTINUE_CHECK;

  1630. 

  1631.         // --------------------------------------------------------------------------------------------------------

  1632.         // Control and MIDI Output

  1633. 

  1634.         if (fMidiOut.count > 0 || pData->event.portOut != nullptr)

  1635.         {

  1636.             float value, curValue;

  1637. 

  1638.             for (uint32_t k=0; k < pData->param.count; ++k)

  1639.             {

  1640.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1641.                     continue;

  1642. 

  1643.                 curValue = fDescriptor->get_parameter_value(fHandle, k);

  1644.                 pData->param.ranges[k].fixValue(curValue);

  1645. 

  1646.                 if (pData->param.data[k].midiCC > 0)

  1647.                 {

  1648.                     value = pData->param.ranges[k].getNormalizedValue(curValue);

  1649.                     pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, pData->param.data[k].midiCC, value);

  1650.                 }

  1651.             }

  1652. 

  1653.             // reverse lookup MIDI events

  1654.             for (uint32_t k = (kPluginMaxMidiEvents*2)-1; k >= fMidiEventCount; --k)

  1655.             {

  1656.                 if (fMidiEvents[k].data[0] == 0)

  1657.                     break;

  1658. 

  1659.                 const uint8_t channel = uint8_t(MIDI_GET_CHANNEL_FROM_DATA(fMidiEvents[k].data));

  1660.                 const uint8_t port    = fMidiEvents[k].port;

  1661. 

  1662.                 if (pData->event.portOut != nullptr)

  1663.                     pData->event.portOut->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].size, fMidiEvents[k].data);

  1664.                 else if (port < fMidiOut.count)

  1665.                     fMidiOut.ports[port]->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].size, fMidiEvents[k].data);

  1666.             }

  1667. 

  1668.         } // End of Control and MIDI Output

  1669.     }

  1670. 

  1671.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1672.     {

  1673.         CARLA_ASSERT(frames > 0);

  1674. 

  1675.         if (frames == 0)

  1676.             return false;

  1677. 

  1678.         if (pData->audioIn.count > 0)

  1679.         {

  1680.             CARLA_ASSERT(inBuffer != nullptr);

  1681.             if (inBuffer == nullptr)

  1682.                 return false;

  1683.         }

  1684.         if (pData->audioOut.count > 0)

  1685.         {

  1686.             CARLA_ASSERT(outBuffer != nullptr);

  1687.             if (outBuffer == nullptr)

  1688.                 return false;

  1689.         }

  1690. 

  1691.         uint32_t i, k;

  1692. 

  1693.         // --------------------------------------------------------------------------------------------------------

  1694.         // Try lock, silence otherwise

  1695. 

  1696.         if (pData->engine->isOffline())

  1697.         {

  1698.             pData->singleMutex.lock();

  1699.         }

  1700.         else if (! pData->singleMutex.tryLock())

  1701.         {

  1702.             for (i=0; i < pData->audioOut.count; ++i)

  1703.             {

  1704.                 for (k=0; k < frames; ++k)

  1705.                     outBuffer[i][k+timeOffset] = 0.0f;

  1706.             }

  1707. 

  1708.             return false;

  1709.         }

  1710. 

  1711.         // --------------------------------------------------------------------------------------------------------

  1712.         // Reset audio buffers

  1713. 

  1714.         for (i=0; i < pData->audioIn.count; ++i)

  1715.         {

  1716. #ifdef HAVE_JUCE

  1717.             FloatVectorOperations::copy(fAudioInBuffers[i], inBuffer[i]+timeOffset, frames);

  1718. #else

  1719. #endif

  1720.         }

  1721. 

  1722.         for (i=0; i < pData->audioOut.count; ++i)

  1723.         {

  1724. #ifdef HAVE_JUCE

  1725.             FloatVectorOperations::clear(fAudioOutBuffers[i], frames);

  1726. #else

  1727. #endif

  1728.         }

  1729. 

  1730.         // --------------------------------------------------------------------------------------------------------

  1731.         // Run plugin

  1732. 

  1733.         fIsProcessing = true;

  1734. 

  1735.         if (fHandle2 == nullptr)

  1736.         {

  1737.             fDescriptor->process(fHandle, fAudioInBuffers, fAudioOutBuffers, frames, fMidiEvents, fMidiEventCount);

  1738.         }

  1739.         else

  1740.         {

  1741.             fDescriptor->process(fHandle,

  1742.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[0] : nullptr,

  1743.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[0] : nullptr,

  1744.                                  frames, fMidiEvents, fMidiEventCount);

  1745. 

  1746.             fDescriptor->process(fHandle2,

  1747.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[1] : nullptr,

  1748.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[1] : nullptr,

  1749.                                  frames, fMidiEvents, fMidiEventCount);

  1750.         }

  1751. 

  1752.         fIsProcessing = false;

  1753.         fTimeInfo.frame += frames;

  1754. 

  1755. #ifndef BUILD_BRIDGE

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

  1757.         // Post-processing (dry/wet, volume and balance)

  1758. 

  1759.         {

  1760.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && pData->postProc.dryWet != 1.0f;

  1761.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && (pData->postProc.balanceLeft != -1.0f || pData->postProc.balanceRight != 1.0f);

  1762. 

  1763.             bool isPair;

  1764.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1765. 

  1766.             for (i=0; i < pData->audioOut.count; ++i)

  1767.             {

  1768.                 // Dry/Wet

  1769.                 if (doDryWet)

  1770.                 {

  1771.                     for (k=0; k < frames; ++k)

  1772.                     {

  1773.                         bufValue = fAudioInBuffers[(pData->audioIn.count == 1) ? 0 : i][k];

  1774.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1775.                     }

  1776.                 }

  1777. 

  1778.                 // Balance

  1779.                 if (doBalance)

  1780.                 {

  1781.                     isPair = (i % 2 == 0);

  1782. 

  1783.                     if (isPair)

  1784.                     {

  1785.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1786. #ifdef HAVE_JUCE

  1787.                         FloatVectorOperations::copy(oldBufLeft, fAudioOutBuffers[i], frames);

  1788. #else

  1789. #endif

  1790.                     }

  1791. 

  1792.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1793.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1794. 

  1795.                     for (k=0; k < frames; ++k)

  1796.                     {

  1797.                         if (isPair)

  1798.                         {

  1799.                             // left

  1800.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1801.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1802.                         }

  1803.                         else

  1804.                         {

  1805.                             // right

  1806.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1807.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1808.                         }

  1809.                     }

  1810.                 }

  1811. 

  1812.                 // Volume (and buffer copy)

  1813.                 {

  1814.                     for (k=0; k < frames; ++k)

  1815.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1816.                 }

  1817.             }

  1818. 

  1819.         } // End of Post-processing

  1820. #else

  1821.         for (i=0; i < pData->audioOut.count; ++i)

  1822.         {

  1823.             for (k=0; k < frames; ++k)

  1824.                 outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1825.         }

  1826. #endif

  1827. 

  1828.         // --------------------------------------------------------------------------------------------------------

  1829. 

  1830.         pData->singleMutex.unlock();

  1831.         return true;

  1832.     }

  1833. 

  1834.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1835.     {

  1836.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1837.         carla_debug("NativePlugin::bufferSizeChanged(%i)", newBufferSize);

  1838. 

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

  1840.         {

  1841.             if (fAudioInBuffers[i] != nullptr)

  1842.                 delete[] fAudioInBuffers[i];

  1843.             fAudioInBuffers[i] = new float[newBufferSize];

  1844.         }

  1845. 

  1846.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1847.         {

  1848.             if (fAudioOutBuffers[i] != nullptr)

  1849.                 delete[] fAudioOutBuffers[i];

  1850.             fAudioOutBuffers[i] = new float[newBufferSize];

  1851.         }

  1852. 

  1853.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1854.         {

  1855.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, newBufferSize, nullptr, 0.0f);

  1856. 

  1857.             if (fHandle2 != nullptr)

  1858.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, newBufferSize, nullptr, 0.0f);

  1859.         }

  1860.     }

  1861. 

  1862.     void sampleRateChanged(const double newSampleRate) override

  1863.     {

  1864.         CARLA_ASSERT_INT(newSampleRate > 0.0, (int)newSampleRate);

  1865.         carla_debug("NativePlugin::sampleRateChanged(%g)", newSampleRate);

  1866. 

  1867.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1868.         {

  1869.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  1870. 

  1871.             if (fHandle2 != nullptr)

  1872.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  1873.         }

  1874.     }

  1875. 

  1876.     void offlineModeChanged(const bool isOffline) override

  1877.     {

  1878.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1879.         {

  1880.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  1881. 

  1882.             if (fHandle2 != nullptr)

  1883.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  1884.         }

  1885.     }

  1886. 

  1887.     // -------------------------------------------------------------------

  1888.     // Plugin buffers

  1889. 

  1890.     void initBuffers() override

  1891.     {

  1892.         fMidiIn.initBuffers();

  1893.         fMidiOut.initBuffers();

  1894. 

  1895.         CarlaPlugin::initBuffers();

  1896.     }

  1897. 

  1898.     void clearBuffers() override

  1899.     {

  1900.         carla_debug("NativePlugin::clearBuffers() - start");

  1901. 

  1902.         if (fAudioInBuffers != nullptr)

  1903.         {

  1904.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1905.             {

  1906.                 if (fAudioInBuffers[i] != nullptr)

  1907.                 {

  1908.                     delete[] fAudioInBuffers[i];

  1909.                     fAudioInBuffers[i] = nullptr;

  1910.                 }

  1911.             }

  1912. 

  1913.             delete[] fAudioInBuffers;

  1914.             fAudioInBuffers = nullptr;

  1915.         }

  1916. 

  1917.         if (fAudioOutBuffers != nullptr)

  1918.         {

  1919.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1920.             {

  1921.                 if (fAudioOutBuffers[i] != nullptr)

  1922.                 {

  1923.                     delete[] fAudioOutBuffers[i];

  1924.                     fAudioOutBuffers[i] = nullptr;

  1925.                 }

  1926.             }

  1927. 

  1928.             delete[] fAudioOutBuffers;

  1929.             fAudioOutBuffers = nullptr;

  1930.         }

  1931. 

  1932.         fMidiIn.clear();

  1933.         fMidiOut.clear();

  1934. 

  1935.         CarlaPlugin::clearBuffers();

  1936. 

  1937.         carla_debug("NativePlugin::clearBuffers() - end");

  1938.     }

  1939. 

  1940.     // -------------------------------------------------------------------

  1941.     // Post-poned UI Stuff

  1942. 

  1943.     void uiParameterChange(const uint32_t index, const float /*value*/) noexcept override

  1944.     {

  1945.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1946.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1947.         CARLA_ASSERT(index < pData->param.count);

  1948. 

  1949.         if (! fIsUiVisible)

  1950.             return;

  1951.         if (fDescriptor == nullptr || fHandle == nullptr)

  1952.             return;

  1953.         if (index >= pData->param.count)

  1954.             return;

  1955. 

  1956.         //if (fDescriptor->ui_set_parameter_value != nullptr)

  1957.         //    fDescriptor->ui_set_parameter_value(fHandle, index, value);

  1958.     }

  1959. 

  1960.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1961.     {

  1962.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1963.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1964.         CARLA_ASSERT(index < pData->midiprog.count);

  1965. 

  1966.         if (! fIsUiVisible)

  1967.             return;

  1968.         if (fDescriptor == nullptr || fHandle == nullptr)

  1969.             return;

  1970.         if (index >= pData->midiprog.count)

  1971.             return;

  1972. 

  1973.         //if (fDescriptor->ui_set_midi_program != nullptr) // TODO

  1974.         //    fDescriptor->ui_set_midi_program(fHandle, 0, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  1975.     }

  1976. 

  1977.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1978.     {

  1979.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1980.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1981.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1982.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1983.         CARLA_ASSERT(velo > 0 && velo < MAX_MIDI_VALUE);

  1984. 

  1985.         if (! fIsUiVisible)

  1986.             return;

  1987.         if (fDescriptor == nullptr || fHandle == nullptr)

  1988.             return;

  1989.         if (channel >= MAX_MIDI_CHANNELS)

  1990.             return;

  1991.         if (note >= MAX_MIDI_NOTE)

  1992.             return;

  1993.         if (velo >= MAX_MIDI_VALUE)

  1994.             return;

  1995. 

  1996.         // TODO

  1997.     }

  1998. 

  1999.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  2000.     {

  2001.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  2002.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  2003.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  2004.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  2005. 

  2006.         if (! fIsUiVisible)

  2007.             return;

  2008.         if (fDescriptor == nullptr || fHandle == nullptr)

  2009.             return;

  2010.         if (channel >= MAX_MIDI_CHANNELS)

  2011.             return;

  2012.         if (note >= MAX_MIDI_NOTE)

  2013.             return;

  2014. 

  2015.         // TODO

  2016.     }

  2017. 

  2018.     // -------------------------------------------------------------------

  2019. 

  2020. protected:

  2021.     uint32_t handleGetBufferSize() const

  2022.     {

  2023.         return pData->engine->getBufferSize();

  2024.     }

  2025. 

  2026.     double handleGetSampleRate() const

  2027.     {

  2028.         return pData->engine->getSampleRate();

  2029.     }

  2030. 

  2031.     bool handleIsOffline() const

  2032.     {

  2033.         return pData->engine->isOffline();

  2034.     }

  2035. 

  2036.     const NativeTimeInfo* handleGetTimeInfo() const

  2037.     {

  2038.         CARLA_SAFE_ASSERT_RETURN(fIsProcessing, nullptr);

  2039. 

  2040.         return &fTimeInfo;

  2041.     }

  2042. 

  2043.     bool handleWriteMidiEvent(const NativeMidiEvent* const event)

  2044.     {

  2045.         CARLA_ASSERT(pData->enabled);

  2046.         CARLA_ASSERT(fIsProcessing);

  2047.         CARLA_ASSERT(fMidiOut.count > 0 || pData->event.portOut != nullptr);

  2048.         CARLA_ASSERT(event != nullptr);

  2049.         CARLA_ASSERT(event->data[0] != 0);

  2050. 

  2051.         if (! pData->enabled)

  2052.             return false;

  2053.         if (fMidiOut.count == 0)

  2054.             return false;

  2055.         if (event == nullptr)

  2056.             return false;

  2057.         if (event->data[0] == 0)

  2058.             return false;

  2059.         if (! fIsProcessing)

  2060.         {

  2061.             carla_stderr2("NativePlugin::handleWriteMidiEvent(%p) - received MIDI out event outside audio thread, ignoring", event);

  2062.             return false;

  2063.         }

  2064. 

  2065.         // reverse-find first free event, and put it there

  2066.         for (uint32_t i=(kPluginMaxMidiEvents*2)-1; i > fMidiEventCount; --i)

  2067.         {

  2068.             if (fMidiEvents[i].data[0] == 0)

  2069.             {

  2070.                 std::memcpy(&fMidiEvents[i], event, sizeof(NativeMidiEvent));

  2071.                 return true;

  2072.             }

  2073.         }

  2074. 

  2075.         return false;

  2076.     }

  2077. 

  2078.     void handleUiParameterChanged(const uint32_t index, const float value)

  2079.     {

  2080.         setParameterValue(index, value, false, true, true);

  2081.     }

  2082. 

  2083.     void handleUiCustomDataChanged(const char* const key, const char* const value)

  2084.     {

  2085.         setCustomData(CUSTOM_DATA_TYPE_STRING, key, value, false);

  2086.     }

  2087. 

  2088.     void handleUiClosed()

  2089.     {

  2090.         pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2091.         fIsUiVisible = false;

  2092.     }

  2093. 

  2094.     const char* handleUiOpenFile(const bool isDir, const char* const title, const char* const filter)

  2095.     {

  2096.         return carla_file_callback(FILE_CALLBACK_OPEN, isDir, title, filter);

  2097.     }

  2098. 

  2099.     const char* handleUiSaveFile(const bool isDir, const char* const title, const char* const filter)

  2100.     {

  2101.         return carla_file_callback(FILE_CALLBACK_SAVE, isDir, title, filter);

  2102.     }

  2103. 

  2104.     intptr_t handleDispatcher(const NativeHostDispatcherOpcode opcode, const int32_t index, const intptr_t value, void* const ptr, const float opt)

  2105.     {

  2106.         carla_debug("NativePlugin::handleDispatcher(%i, %i, " P_INTPTR ", %p, %f)", opcode, index, value, ptr, opt);

  2107. 

  2108.         intptr_t ret = 0;

  2109. 

  2110.         switch (opcode)

  2111.         {

  2112.         case ::HOST_OPCODE_NULL:

  2113.             break;

  2114. #ifdef BUILD_BRIDGE

  2115.         case ::HOST_OPCODE_SET_VOLUME:

  2116.         case ::HOST_OPCODE_SET_DRYWET:

  2117.         case ::HOST_OPCODE_SET_BALANCE_LEFT:

  2118.         case ::HOST_OPCODE_SET_BALANCE_RIGHT:

  2119.         case ::HOST_OPCODE_SET_PANNING:

  2120.             break;

  2121. #else

  2122.         case ::HOST_OPCODE_SET_VOLUME:

  2123.             setVolume(opt, true, true);

  2124.             break;

  2125.         case ::HOST_OPCODE_SET_DRYWET:

  2126.             setDryWet(opt, true, true);

  2127.             break;

  2128.         case ::HOST_OPCODE_SET_BALANCE_LEFT:

  2129.             setBalanceLeft(opt, true, true);

  2130.             break;

  2131.         case ::HOST_OPCODE_SET_BALANCE_RIGHT:

  2132.             setBalanceRight(opt, true, true);

  2133.             break;

  2134.         case ::HOST_OPCODE_SET_PANNING:

  2135.             setPanning(opt, true, true);

  2136.             break;

  2137. #endif

  2138.         case HOST_OPCODE_GET_PARAMETER_MIDI_CC:

  2139.         case HOST_OPCODE_SET_PARAMETER_MIDI_CC:

  2140.             // TODO

  2141.             break;

  2142.         case ::HOST_OPCODE_SET_PROCESS_PRECISION:

  2143.             // TODO

  2144.             break;

  2145.         case ::HOST_OPCODE_UPDATE_PARAMETER:

  2146.             // TODO

  2147.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2148.             break;

  2149.         case ::HOST_OPCODE_UPDATE_MIDI_PROGRAM:

  2150.             // TODO

  2151.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2152.             break;

  2153.         case ::HOST_OPCODE_RELOAD_PARAMETERS:

  2154.             reload(); // FIXME

  2155.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PARAMETERS, pData->id, -1, 0, 0.0f, nullptr);

  2156.             break;

  2157.         case ::HOST_OPCODE_RELOAD_MIDI_PROGRAMS:

  2158.             reloadPrograms(false);

  2159.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, -1, 0, 0.0f, nullptr);

  2160.             break;

  2161.         case ::HOST_OPCODE_RELOAD_ALL:

  2162.             reload();

  2163.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_ALL, pData->id, -1, 0, 0.0f, nullptr);

  2164.             break;

  2165.         case HOST_OPCODE_UI_UNAVAILABLE:

  2166.             pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, -1, 0, 0.0f, nullptr);

  2167.             break;

  2168.         }

  2169. 

  2170.         return ret;

  2171. 

  2172.         // unused for now

  2173.         (void)index;

  2174.         (void)value;

  2175.         (void)ptr;

  2176.     }

  2177. 

  2178.     // -------------------------------------------------------------------

  2179. 

  2180. public:

  2181.     static size_t getPluginCount() noexcept

  2182.     {

  2183.         return sPluginDescriptors.count();

  2184.     }

  2185. 

  2186.     static const NativePluginDescriptor* getPluginDescriptor(const size_t index) noexcept

  2187.     {

  2188.         CARLA_SAFE_ASSERT_RETURN(index < sPluginDescriptors.count(), nullptr);

  2189. 

  2190.         return sPluginDescriptors.getAt(index);

  2191.     }

  2192. 

  2193.     static void registerPlugin(const NativePluginDescriptor* desc)

  2194.     {

  2195.         sPluginDescriptors.append(desc);

  2196.     }

  2197. 

  2198.     // -------------------------------------------------------------------

  2199. 

  2200.     bool init(const char* const name, const char* const label)

  2201.     {

  2202.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2203. 

  2204.         // ---------------------------------------------------------------

  2205.         // first checks

  2206. 

  2207.         if (pData->client != nullptr)

  2208.         {

  2209.             pData->engine->setLastError("Plugin client is already registered");

  2210.             return false;

  2211.         }

  2212. 

  2213.         if (label == nullptr && label[0] != '\0')

  2214.         {

  2215.             pData->engine->setLastError("null label");

  2216.             return false;

  2217.         }

  2218. 

  2219.         // ---------------------------------------------------------------

  2220.         // get descriptor that matches label

  2221. 

  2222.         for (LinkedList<const NativePluginDescriptor*>::Itenerator it = sPluginDescriptors.begin(); it.valid(); it.next())

  2223.         {

  2224.             fDescriptor = it.getValue();

  2225. 

  2226.             CARLA_SAFE_ASSERT_BREAK(fDescriptor != nullptr);

  2227. 

  2228.             if (fDescriptor->label != nullptr && std::strcmp(fDescriptor->label, label) == 0)

  2229.                 break;

  2230. 

  2231.             fDescriptor = nullptr;

  2232.         }

  2233. 

  2234.         if (fDescriptor == nullptr)

  2235.         {

  2236.             pData->engine->setLastError("Invalid internal plugin");

  2237.             return false;

  2238.         }

  2239. 

  2240.         // ---------------------------------------------------------------

  2241.         // set icon

  2242. 

  2243.         if (std::strcmp(fDescriptor->label, "audiofile") == 0)

  2244.             pData->iconName = carla_strdup("file");

  2245.         else if (std::strcmp(fDescriptor->label, "midifile") == 0)

  2246.             pData->iconName = carla_strdup("file");

  2247.         else if (std::strcmp(fDescriptor->label, "sunvoxfile") == 0)

  2248.             pData->iconName = carla_strdup("file");

  2249. 

  2250.         else if (std::strcmp(fDescriptor->label, "3BandEQ") == 0)

  2251.             pData->iconName = carla_strdup("distrho");

  2252.         else if (std::strcmp(fDescriptor->label, "3BandSplitter") == 0)

  2253.             pData->iconName = carla_strdup("distrho");

  2254.         else if (std::strcmp(fDescriptor->label, "Nekobi") == 0)

  2255.             pData->iconName = carla_strdup("distrho");

  2256.         else if (std::strcmp(fDescriptor->label, "Notes") == 0)

  2257.             pData->iconName = carla_strdup("distrho");

  2258.         else if (std::strcmp(fDescriptor->label, "PingPongPan") == 0)

  2259.             pData->iconName = carla_strdup("distrho");

  2260.         else if (std::strcmp(fDescriptor->label, "StereoEnhancer") == 0)

  2261.             pData->iconName = carla_strdup("distrho");

  2262. 

  2263.         // ---------------------------------------------------------------

  2264.         // get info

  2265. 

  2266.         if (name != nullptr && name[0] != '\0')

  2267.             pData->name = pData->engine->getUniquePluginName(name);

  2268.         else if (fDescriptor->name != nullptr && fDescriptor->name[0] != '\0')

  2269.             pData->name = pData->engine->getUniquePluginName(fDescriptor->name);

  2270.         else

  2271.             pData->name = pData->engine->getUniquePluginName(label);

  2272. 

  2273.         {

  2274.             CARLA_ASSERT(fHost.uiName == nullptr);

  2275. 

  2276.             char uiName[std::strlen(pData->name)+6+1];

  2277.             std::strcpy(uiName, pData->name);

  2278.             std::strcat(uiName, " (GUI)");

  2279. 

  2280.             fHost.uiName = carla_strdup(uiName);

  2281.         }

  2282. 

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

  2284.         // register client

  2285. 

  2286.         pData->client = pData->engine->addClient(this);

  2287. 

  2288.         if (pData->client == nullptr || ! pData->client->isOk())

  2289.         {

  2290.             pData->engine->setLastError("Failed to register plugin client");

  2291.             return false;

  2292.         }

  2293. 

  2294.         // ---------------------------------------------------------------

  2295.         // initialize plugin

  2296. 

  2297.         fHandle = fDescriptor->instantiate(&fHost);

  2298. 

  2299.         if (fHandle == nullptr)

  2300.         {

  2301.             pData->engine->setLastError("Plugin failed to initialize");

  2302.             return false;

  2303.         }

  2304. 

  2305.         // ---------------------------------------------------------------

  2306.         // load plugin settings

  2307. 

  2308.         {

  2309.             const bool hasMidiProgs(fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_count(fHandle) > 0);

  2310. 

  2311.             // set default options

  2312.             pData->options = 0x0;

  2313. 

  2314.             if (hasMidiProgs && (fDescriptor->supports & ::PLUGIN_SUPPORTS_PROGRAM_CHANGES) == 0)

  2315.                 pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  2316. 

  2317.             if (getMidiInCount() > 0 || (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS) != 0)

  2318.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2319. 

  2320.             if (pData->engine->getOptions().forceStereo)

  2321.                 pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2322. 

  2323.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_CHANNEL_PRESSURE)

  2324.                 pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  2325.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_NOTE_AFTERTOUCH)

  2326.                 pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  2327.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_PITCHBEND)

  2328.                 pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  2329.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_ALL_SOUND_OFF)

  2330.                 pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  2331. 

  2332.             // set identifier string

  2333.             CarlaString identifier("Native/");

  2334.             identifier += label;

  2335.             pData->identifier = identifier.dup();

  2336. 

  2337.             // load settings

  2338.             pData->options = pData->loadSettings(pData->options, getOptionsAvailable());

  2339. 

  2340.             // ignore settings, we need this anyway

  2341.             if (getMidiInCount() > 0 || (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS) != 0)

  2342.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2343.         }

  2344. 

  2345.         return true;

  2346.     }

  2347. 

  2348.     class ScopedInitializer

  2349.     {

  2350.     public:

  2351.         ScopedInitializer()

  2352.         {

  2353.             carla_register_all_plugins();

  2354.         }

  2355. 

  2356.         ~ScopedInitializer()

  2357.         {

  2358.             sPluginDescriptors.clear();

  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.     static LinkedList<const NativePluginDescriptor*> sPluginDescriptors;

  2384. 

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

  2386. 

  2387.     #define handlePtr ((NativePlugin*)handle)

  2388. 

  2389.     static uint32_t carla_host_get_buffer_size(NativeHostHandle handle)

  2390.     {

  2391.         return handlePtr->handleGetBufferSize();

  2392.     }

  2393. 

  2394.     static double carla_host_get_sample_rate(NativeHostHandle handle)

  2395.     {

  2396.         return handlePtr->handleGetSampleRate();

  2397.     }

  2398. 

  2399.     static bool carla_host_is_offline(NativeHostHandle handle)

  2400.     {

  2401.         return handlePtr->handleIsOffline();

  2402.     }

  2403. 

  2404.     static const NativeTimeInfo* carla_host_get_time_info(NativeHostHandle handle)

  2405.     {

  2406.         return handlePtr->handleGetTimeInfo();

  2407.     }

  2408. 

  2409.     static bool carla_host_write_midi_event(NativeHostHandle handle, const NativeMidiEvent* event)

  2410.     {

  2411.         return handlePtr->handleWriteMidiEvent(event);

  2412.     }

  2413. 

  2414.     static void carla_host_ui_parameter_changed(NativeHostHandle handle, uint32_t index, float value)

  2415.     {

  2416.         handlePtr->handleUiParameterChanged(index, value);

  2417.     }

  2418. 

  2419.     static void carla_host_ui_custom_data_changed(NativeHostHandle handle, const char* key, const char* value)

  2420.     {

  2421.         handlePtr->handleUiCustomDataChanged(key, value);

  2422.     }

  2423. 

  2424.     static void carla_host_ui_closed(NativeHostHandle handle)

  2425.     {

  2426.         handlePtr->handleUiClosed();

  2427.     }

  2428. 

  2429.     static const char* carla_host_ui_open_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2430.     {

  2431.         return handlePtr->handleUiOpenFile(isDir, title, filter);

  2432.     }

  2433. 

  2434.     static const char* carla_host_ui_save_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2435.     {

  2436.         return handlePtr->handleUiSaveFile(isDir, title, filter);

  2437.     }

  2438. 

  2439.     static intptr_t carla_host_dispatcher(NativeHostHandle handle, NativeHostDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  2440.     {

  2441.         return handlePtr->handleDispatcher(opcode, index, value, ptr, opt);

  2442.     }

  2443. 

  2444.     #undef handlePtr

  2445. 

  2446.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(NativePlugin)

  2447. };

  2448. 

  2449. LinkedList<const NativePluginDescriptor*> NativePlugin::sPluginDescriptors;

  2450. 

  2451. static const NativePlugin::ScopedInitializer _si;

  2452. 

  2453. CARLA_BACKEND_END_NAMESPACE

  2454. 

  2455. void carla_register_native_plugin(const NativePluginDescriptor* desc)

  2456. {

  2457.     CARLA_BACKEND_USE_NAMESPACE

  2458.     NativePlugin::registerPlugin(desc);

  2459. }

  2460. 

  2461. #endif // WANT_NATIVE

  2462. 

  2463. // -----------------------------------------------------------------------

  2464. 

  2465. CARLA_BACKEND_START_NAMESPACE

  2466. 

  2467. #ifdef WANT_NATIVE

  2468. size_t CarlaPlugin::getNativePluginCount() noexcept

  2469. {

  2470.     return NativePlugin::getPluginCount();

  2471. }

  2472. 

  2473. const NativePluginDescriptor* CarlaPlugin::getNativePluginDescriptor(const size_t index) noexcept

  2474. {

  2475.     return NativePlugin::getPluginDescriptor(index);

  2476. }

  2477. #endif

  2478. 

  2479. // -----------------------------------------------------------------------

  2480. 

  2481. CarlaPlugin* CarlaPlugin::newNative(const Initializer& init)

  2482. {

  2483.     carla_debug("CarlaPlugin::newNative({%p, \"%s\", \"%s\", \"%s\"})", init.engine, init.filename, init.name, init.label);

  2484. 

  2485. #ifdef WANT_NATIVE

  2486.     NativePlugin* const plugin(new NativePlugin(init.engine, init.id));

  2487. 

  2488.     if (! plugin->init(init.name, init.label))

  2489.     {

  2490.         delete plugin;

  2491.         return nullptr;

  2492.     }

  2493. 

  2494.     plugin->reload();

  2495. 

  2496.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && ! plugin->canRunInRack())

  2497.     {

  2498.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo Internal plugins, sorry!");

  2499.         delete plugin;

  2500.         return nullptr;

  2501.     }

  2502. 

  2503.     return plugin;

  2504. #else

  2505.     init.engine->setLastError("Internal plugins support not available");

  2506.     return nullptr;

  2507. #endif

  2508. }

  2509. 

  2510. CARLA_BACKEND_END_NAMESPACE

  2511. 

  2512. // -----------------------------------------------------------------------