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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. #include "CarlaEngine.hpp"

  20. 

  21. #ifdef WANT_NATIVE

  22. 

  23. #include "CarlaMathUtils.hpp"

  24. 

  25. #include "CarlaNative.h"

  26. #include "CarlaHost.h"

  27. 

  28. #include <QtCore/QStringList>

  29. 

  30. CARLA_BACKEND_START_NAMESPACE

  31. 

  32. #if 0

  33. }

  34. #endif

  35. 

  36. struct NativePluginMidiData {

  37.     uint32_t  count;

  38.     uint32_t* indexes;

  39.     CarlaEngineEventPort** ports;

  40. 

  41.     NativePluginMidiData()

  42.         : count(0),

  43.           indexes(nullptr),

  44.           ports(nullptr) {}

  45. 

  46.     ~NativePluginMidiData()

  47.     {

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

  49.         CARLA_ASSERT(indexes == nullptr);

  50.         CARLA_ASSERT(ports == nullptr);

  51.     }

  52. 

  53.     void createNew(const uint32_t newCount)

  54.     {

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

  56.         CARLA_SAFE_ASSERT_RETURN(indexes == nullptr,);

  57.         CARLA_SAFE_ASSERT_RETURN(ports == nullptr,);

  58.         CARLA_SAFE_ASSERT_RETURN(newCount > 0,);

  59. 

  60.         ports   = new CarlaEngineEventPort*[newCount];

  61.         indexes = new uint32_t[newCount];

  62.         count   = newCount;

  63. 

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

  65.             ports[i] = nullptr;

  66. 

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

  68.             indexes[i] = 0;

  69.     }

  70. 

  71.     void clear()

  72.     {

  73.         if (ports != nullptr)

  74.         {

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

  76.             {

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

  78.                 {

  79.                     delete ports[i];

  80.                     ports[i] = nullptr;

  81.                 }

  82.             }

  83. 

  84.             delete[] ports;

  85.             ports = nullptr;

  86.         }

  87. 

  88.         if (indexes != nullptr)

  89.         {

  90.             delete[] indexes;

  91.             indexes = nullptr;

  92.         }

  93. 

  94.         count = 0;

  95.     }

  96. 

  97.     void initBuffers()

  98.     {

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

  100.         {

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

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

  103.         }

  104.     }

  105. 

  106.     CARLA_DECLARE_NON_COPY_STRUCT(NativePluginMidiData)

  107. };

  108. 

  109. class NativePlugin : public CarlaPlugin

  110. {

  111. public:

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

  113.         : CarlaPlugin(engine, id),

  114.           fHandle(nullptr),

  115.           fHandle2(nullptr),

  116.           fDescriptor(nullptr),

  117.           fIsProcessing(false),

  118.           fIsUiVisible(false),

  119.           fAudioInBuffers(nullptr),

  120.           fAudioOutBuffers(nullptr),

  121.           fMidiEventCount(0)

  122.     {

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

  124. 

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

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

  127.         carla_zeroStruct<NativeTimeInfo>(fTimeInfo);

  128. 

  129.         fHost.handle      = this;

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

  131.         fHost.uiName      = nullptr;

  132. 

  133.         fHost.get_buffer_size        = carla_host_get_buffer_size;

  134.         fHost.get_sample_rate        = carla_host_get_sample_rate;

  135.         fHost.is_offline             = carla_host_is_offline;

  136.         fHost.get_time_info          = carla_host_get_time_info;

  137.         fHost.write_midi_event       = carla_host_write_midi_event;

  138.         fHost.ui_parameter_changed   = carla_host_ui_parameter_changed;

  139.         fHost.ui_custom_data_changed = carla_host_ui_custom_data_changed;

  140.         fHost.ui_closed              = carla_host_ui_closed;

  141.         fHost.ui_open_file           = carla_host_ui_open_file;

  142.         fHost.ui_save_file           = carla_host_ui_save_file;

  143.         fHost.dispatcher             = carla_host_dispatcher;

  144.     }

  145. 

  146.     ~NativePlugin() override

  147.     {

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

  149. 

  150.         // close UI

  151.         if (pData->hints & PLUGIN_HAS_UI)

  152.         {

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

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

  155.         }

  156. 

  157.         pData->singleMutex.lock();

  158.         pData->masterMutex.lock();

  159. 

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

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

  162. 

  163.         CARLA_ASSERT(! fIsProcessing);

  164. 

  165.         if (pData->active)

  166.         {

  167.             deactivate();

  168.             pData->active = false;

  169.         }

  170. 

  171.         if (fDescriptor != nullptr)

  172.         {

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

  174.             {

  175.                 if (fHandle != nullptr)

  176.                     fDescriptor->cleanup(fHandle);

  177.                 if (fHandle2 != nullptr)

  178.                     fDescriptor->cleanup(fHandle2);

  179.             }

  180. 

  181.             fHandle  = nullptr;

  182.             fHandle2 = nullptr;

  183.             fDescriptor = nullptr;

  184.         }

  185. 

  186.         if (fHost.resourceDir != nullptr)

  187.         {

  188.             delete[] fHost.resourceDir;

  189.             fHost.resourceDir = nullptr;

  190.         }

  191. 

  192.         if (fHost.uiName != nullptr)

  193.         {

  194.             delete[] fHost.uiName;

  195.             fHost.uiName = nullptr;

  196.         }

  197. 

  198.         clearBuffers();

  199.     }

  200. 

  201.     // -------------------------------------------------------------------

  202.     // Information (base)

  203. 

  204.     PluginType getType() const noexcept override

  205.     {

  206.         return PLUGIN_INTERNAL;

  207.     }

  208. 

  209.     PluginCategory getCategory() const noexcept override

  210.     {

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

  212. 

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

  214.     }

  215. 

  216.     // -------------------------------------------------------------------

  217.     // Information (count)

  218. 

  219.     uint32_t getMidiInCount() const noexcept override

  220.     {

  221.         return fMidiIn.count;

  222.     }

  223. 

  224.     uint32_t getMidiOutCount() const noexcept override

  225.     {

  226.         return fMidiOut.count;

  227.     }

  228. 

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

  230.     {

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

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

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

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

  235. 

  236.         // FIXME - try

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

  238.             return param->scalePointCount;

  239. 

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

  241.         return 0;

  242.     }

  243. 

  244.     // -------------------------------------------------------------------

  245.     // Information (current data)

  246. 

  247.     // nothing

  248. 

  249.     // -------------------------------------------------------------------

  250.     // Information (per-plugin data)

  251. 

  252.     unsigned int getOptionsAvailable() const noexcept override

  253.     {

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

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

  256. 

  257.         // FIXME - try

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

  259. 

  260.         unsigned int options = 0x0;

  261. 

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

  263.             options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  264. 

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

  266.             options |= PLUGIN_OPTION_FIXED_BUFFERS;

  267. 

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

  269.         {

  270.             if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  271.                 options |= PLUGIN_OPTION_FORCE_STEREO;

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

  273.                 options |= PLUGIN_OPTION_FORCE_STEREO;

  274.         }

  275. 

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

  277.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

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

  279.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

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

  281.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

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

  283.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

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

  285.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  286. 

  287.         return options;

  288.     }

  289. 

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

  291.     {

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

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

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

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

  296. 

  297.         // FIXME - try

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

  299.     }

  300. 

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

  302.     {

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

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

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

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

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

  308. 

  309.         // FIXME - try

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

  311.         {

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

  313.             return scalePoint->value;

  314.         }

  315. 

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

  317.         return 0.0f;

  318.     }

  319. 

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

  321.     {

  322.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  323. 

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

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

  326.         else

  327.             CarlaPlugin::getLabel(strBuf);

  328.     }

  329. 

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

  331.     {

  332.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  333. 

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

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

  336.         else

  337.             CarlaPlugin::getMaker(strBuf);

  338.     }

  339. 

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

  341.     {

  342.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  343. 

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

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

  346.         else

  347.             CarlaPlugin::getCopyright(strBuf);

  348.     }

  349. 

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

  351.     {

  352.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  353. 

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

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

  356.         else

  357.             CarlaPlugin::getRealName(strBuf);

  358.     }

  359. 

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

  361.     {

  362.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  364.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  366. 

  367.         // FIXME - try

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

  369.         {

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

  371.             {

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

  373.                 return;

  374.             }

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

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

  377.         }

  378. 

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

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

  381.     }

  382. 

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

  384.     {

  385.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

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

  388.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  390. 

  391.         // FIXME - try

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

  393.         {

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

  395.             return;

  396.         }

  397. 

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

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

  400.     }

  401. 

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

  403.     {

  404.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  406.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  408. 

  409.         // FIXME - try

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

  411.         {

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

  413.             {

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

  415.                 return;

  416.             }

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

  418.         }

  419. 

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

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

  422.     }

  423. 

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

  425.     {

  426.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  428.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

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

  431. 

  432.         // FIXME - try

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

  434.         {

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

  436. 

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

  438.             {

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

  440.                 return;

  441.             }

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

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

  444.         }

  445. 

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

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

  448.     }

  449. 

  450.     // -------------------------------------------------------------------

  451.     // Set data (state)

  452. 

  453.     void prepareForSave() override

  454.     {

  455.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  456.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  457. 

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

  459.         {

  460.             char strBuf[STR_MAX+1];

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

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

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

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

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

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

  467. 

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

  469.         }

  470. 

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

  472.             return;

  473. 

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

  475.         {

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

  477.             std::free(data);

  478.         }

  479.     }

  480. 

  481.     // -------------------------------------------------------------------

  482.     // Set data (internal stuff)

  483. 

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

  485.     {

  486.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  487.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  489. 

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

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

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

  493. 

  494.         if (fHost.uiName != nullptr)

  495.             delete[] fHost.uiName;

  496.         fHost.uiName = carla_strdup(uiName);

  497. 

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

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

  500. 

  501.         CarlaPlugin::setName(newName);

  502.     }

  503. 

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

  505.     {

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

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

  508. 

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

  510.     }

  511. 

  512.     // -------------------------------------------------------------------

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

  514. 

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

  516.     {

  517.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  519.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  521. 

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

  523. 

  524.         // FIXME - try

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

  526. 

  527.         if (fHandle2 != nullptr)

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

  529. 

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

  531.     }

  532. 

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

  534.     {

  535.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  536.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

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

  539.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

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

  541. 

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

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

  544. 

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

  546.         {

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

  548.             {

  549.                 const ScopedSingleProcessLocker spl(this, true);

  550. 

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

  552. 

  553.                 if (fHandle2 != nullptr)

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

  555.             }

  556.         }

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

  558.         {

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

  560. 

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

  562.             {

  563.                 uint8_t channel = 0;

  564.                 foreach (const QString& midiProg, midiProgramList)

  565.                 {

  566.                     bool ok;

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

  568. 

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

  570.                     {

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

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

  573. 

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

  575. 

  576.                         if (fHandle2 != nullptr)

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

  578. 

  579.                         fCurMidiProgs[channel] = index;

  580. 

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

  582.                         {

  583.                             pData->midiprog.current = index;

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

  585.                         }

  586.                     }

  587. 

  588.                     ++channel;

  589.                 }

  590.             }

  591.         }

  592.         else

  593.         {

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

  595.             {

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

  597. 

  598.                 if (fHandle2 != nullptr)

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

  600.             }

  601. 

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

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

  604.         }

  605. 

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

  607.     }

  608. 

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

  610.     {

  611.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  612.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  614. 

  615.         // TODO, put into check below

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

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

  618. 

  619.         if (index >= 0)

  620.         {

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

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

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

  624. 

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

  626. 

  627.             try {

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

  629.             } catch(...) {}

  630. 

  631.             if (fHandle2 != nullptr)

  632.             {

  633.                 try {

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

  635.                 } catch(...) {}

  636.             }

  637. 

  638.             fCurMidiProgs[channel] = index;

  639.         }

  640. 

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

  642.     }

  643. 

  644.     // -------------------------------------------------------------------

  645.     // Set ui stuff

  646. 

  647.     void showCustomUI(const bool yesNo) override

  648.     {

  649.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  650.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  651. 

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

  653.             return;

  654. 

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

  656.         fIsUiVisible = yesNo;

  657. 

  658.         if (! yesNo)

  659.             return;

  660. 

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

  662.         {

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

  664.             {

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

  666. 

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

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

  669.             }

  670.         }

  671. 

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

  673.         {

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

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

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

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

  678. 

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

  680.         }

  681. 

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

  683.         {

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

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

  686.         }

  687.     }

  688. 

  689.     void idle() override

  690.     {

  691.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  692.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  693. 

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

  695.             fDescriptor->ui_idle(fHandle);

  696. 

  697.         CarlaPlugin::idle();

  698.     }

  699. 

  700.     // -------------------------------------------------------------------

  701.     // Plugin state

  702. 

  703.     void reload() override

  704.     {

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

  706.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  707.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  709. 

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

  711. 

  712.         // Safely disable plugin for reload

  713.         const ScopedDisabler sd(this);

  714. 

  715.         if (pData->active)

  716.             deactivate();

  717. 

  718.         clearBuffers();

  719. 

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

  721. 

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

  723. 

  724.         bool forcedStereoIn, forcedStereoOut;

  725.         forcedStereoIn = forcedStereoOut = false;

  726. 

  727.         bool needsCtrlIn, needsCtrlOut;

  728.         needsCtrlIn = needsCtrlOut = false;

  729. 

  730.         aIns   = fDescriptor->audioIns;

  731.         aOuts  = fDescriptor->audioOuts;

  732.         mIns   = fDescriptor->midiIns;

  733.         mOuts  = fDescriptor->midiOuts;

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

  735. 

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

  737.         {

  738.             if (fHandle2 == nullptr)

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

  740. 

  741.             if (fHandle2 != nullptr)

  742.             {

  743.                 if (aIns == 1)

  744.                 {

  745.                     aIns = 2;

  746.                     forcedStereoIn = true;

  747.                 }

  748. 

  749.                 if (aOuts == 1)

  750.                 {

  751.                     aOuts = 2;

  752.                     forcedStereoOut = true;

  753.                 }

  754.             }

  755.         }

  756. 

  757.         if (aIns > 0)

  758.         {

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

  760.             fAudioInBuffers = new float*[aIns];

  761. 

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

  763.                 fAudioInBuffers[i] = nullptr;

  764.         }

  765. 

  766.         if (aOuts > 0)

  767.         {

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

  769.             fAudioOutBuffers = new float*[aOuts];

  770.             needsCtrlIn = true;

  771. 

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

  773.                 fAudioOutBuffers[i] = nullptr;

  774.         }

  775. 

  776.         if (mIns > 0)

  777.         {

  778.             fMidiIn.createNew(mIns);

  779.             needsCtrlIn = (mIns == 1);

  780.         }

  781. 

  782.         if (mOuts > 0)

  783.         {

  784.             fMidiOut.createNew(mOuts);

  785.             needsCtrlOut = (mOuts == 1);

  786.         }

  787. 

  788.         if (params > 0)

  789.         {

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

  791.         }

  792. 

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

  794.         CarlaString portName;

  795. 

  796.         // Audio Ins

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

  798.         {

  799.             portName.clear();

  800. 

  801.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  802.             {

  803.                 portName  = pData->name;

  804.                 portName += ":";

  805.             }

  806. 

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

  808.             {

  809.                 portName += "input_";

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

  811.             }

  812.             else

  813.                 portName += "input";

  814. 

  815.             portName.truncate(portNameSize);

  816. 

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

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

  819. 

  820.             if (forcedStereoIn)

  821.             {

  822.                 portName += "_2";

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

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

  825.                 break;

  826.             }

  827.         }

  828. 

  829.         // Audio Outs

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

  831.         {

  832.             portName.clear();

  833. 

  834.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  835.             {

  836.                 portName  = pData->name;

  837.                 portName += ":";

  838.             }

  839. 

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

  841.             {

  842.                 portName += "output_";

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

  844.             }

  845.             else

  846.                 portName += "output";

  847. 

  848.             portName.truncate(portNameSize);

  849. 

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

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

  852. 

  853.             if (forcedStereoOut)

  854.             {

  855.                 portName += "_2";

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

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

  858.                 break;

  859.             }

  860.         }

  861. 

  862.         // MIDI Input (only if multiple)

  863.         if (mIns > 1)

  864.         {

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

  866.             {

  867.                 portName.clear();

  868. 

  869.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  870.                 {

  871.                     portName  = pData->name;

  872.                     portName += ":";

  873.                 }

  874. 

  875.                 portName += "midi-in_";

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

  877.                 portName.truncate(portNameSize);

  878. 

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

  880.                 fMidiIn.indexes[j] = j;

  881.             }

  882.         }

  883. 

  884.         // MIDI Output (only if multiple)

  885.         if (mOuts > 1)

  886.         {

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

  888.             {

  889.                 portName.clear();

  890. 

  891.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  892.                 {

  893.                     portName  = pData->name;

  894.                     portName += ":";

  895.                 }

  896. 

  897.                 portName += "midi-out_";

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

  899.                 portName.truncate(portNameSize);

  900. 

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

  902.                 fMidiOut.indexes[j] = j;

  903.             }

  904.         }

  905. 

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

  907.         {

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

  909. 

  910.             CARLA_SAFE_ASSERT_CONTINUE(paramInfo != nullptr);

  911. 

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

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

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

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

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

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

  918. 

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

  920. 

  921.             // min value

  922.             min = paramInfo->ranges.min;

  923. 

  924.             // max value

  925.             max = paramInfo->ranges.max;

  926. 

  927.             if (min > max)

  928.                 max = min;

  929.             else if (max < min)

  930.                 min = max;

  931. 

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

  933.             {

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

  935.                 max = min + 0.1f;

  936.             }

  937. 

  938.             // default value

  939.             def = paramInfo->ranges.def;

  940. 

  941.             if (def < min)

  942.                 def = min;

  943.             else if (def > max)

  944.                 def = max;

  945. 

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

  947.             {

  948.                 min *= sampleRate;

  949.                 max *= sampleRate;

  950.                 def *= sampleRate;

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

  952.             }

  953. 

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

  955.             {

  956.                 step = max - min;

  957.                 stepSmall = step;

  958.                 stepLarge = step;

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

  960.             }

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

  962.             {

  963.                 step = 1.0f;

  964.                 stepSmall = 1.0f;

  965.                 stepLarge = 10.0f;

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

  967.             }

  968.             else

  969.             {

  970.                 float range = max - min;

  971.                 step = range/100.0f;

  972.                 stepSmall = range/1000.0f;

  973.                 stepLarge = range/10.0f;

  974.             }

  975. 

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

  977.             {

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

  979.                 needsCtrlOut = true;

  980.             }

  981.             else

  982.             {

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

  984.                 needsCtrlIn = true;

  985.             }

  986. 

  987.             // extra parameter hints

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

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

  990. 

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

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

  993. 

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

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

  996. 

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

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

  999. 

  1000.             if (paramInfo->hints & ::PARAMETER_USES_CUSTOM_TEXT)

  1001.                 pData->param.data[j].hints |= PARAMETER_USES_CUSTOM_TEXT;

  1002. 

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

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

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

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

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

  1008.             pData->param.ranges[j].stepLarge = stepLarge;

  1009.         }

  1010. 

  1011.         if (needsCtrlIn)

  1012.         {

  1013.             portName.clear();

  1014. 

  1015.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1016.             {

  1017.                 portName  = pData->name;

  1018.                 portName += ":";

  1019.             }

  1020. 

  1021.             portName += "events-in";

  1022.             portName.truncate(portNameSize);

  1023. 

  1024.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  1025.         }

  1026. 

  1027.         if (needsCtrlOut)

  1028.         {

  1029.             portName.clear();

  1030. 

  1031.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1032.             {

  1033.                 portName  = pData->name;

  1034.                 portName += ":";

  1035.             }

  1036. 

  1037.             portName += "events-out";

  1038.             portName.truncate(portNameSize);

  1039. 

  1040.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  1041.         }

  1042. 

  1043.         if (forcedStereoIn || forcedStereoOut)

  1044.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1045.         else

  1046.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  1047. 

  1048.         // plugin hints

  1049.         pData->hints = 0x0;

  1050. 

  1051.         if (aOuts > 0 && (aIns == aOuts || aIns == 1))

  1052.             pData->hints |= PLUGIN_CAN_DRYWET;

  1053. 

  1054.         if (aOuts > 0)

  1055.             pData->hints |= PLUGIN_CAN_VOLUME;

  1056. 

  1057.         if (aOuts >= 2 && aOuts % 2 == 0)

  1058.             pData->hints |= PLUGIN_CAN_BALANCE;

  1059. 

  1060.         // native plugin hints

  1061.         if (fDescriptor->hints & ::PLUGIN_IS_RTSAFE)

  1062.             pData->hints |= PLUGIN_IS_RTSAFE;

  1063.         if (fDescriptor->hints & ::PLUGIN_IS_SYNTH)

  1064.             pData->hints |= PLUGIN_IS_SYNTH;

  1065.         if (fDescriptor->hints & ::PLUGIN_HAS_UI)

  1066.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  1067.         if (fDescriptor->hints & ::PLUGIN_NEEDS_SINGLE_THREAD)

  1068.             pData->hints |= PLUGIN_NEEDS_SINGLE_THREAD;

  1069.         if (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS)

  1070.             pData->hints |= PLUGIN_NEEDS_FIXED_BUFFERS;

  1071. 

  1072.         // extra plugin hints

  1073.         pData->extraHints = 0x0;

  1074. 

  1075.         if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0) && mIns <= 1 && mOuts <= 1)

  1076.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1077. 

  1078.         bufferSizeChanged(pData->engine->getBufferSize());

  1079.         reloadPrograms(true);

  1080. 

  1081.         if (pData->active)

  1082.             activate();

  1083. 

  1084.         carla_debug("NativePlugin::reload() - end");

  1085.     }

  1086. 

  1087.     void reloadPrograms(const bool doInit) override

  1088.     {

  1089.         carla_debug("NativePlugin::reloadPrograms(%s)", bool2str(doInit));

  1090.         uint32_t i, oldCount  = pData->midiprog.count;

  1091.         const int32_t current = pData->midiprog.current;

  1092. 

  1093.         // Delete old programs

  1094.         pData->midiprog.clear();

  1095. 

  1096.         // Query new programs

  1097.         uint32_t count = 0;

  1098.         if (fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_info != nullptr && fDescriptor->set_midi_program != nullptr)

  1099.             count = fDescriptor->get_midi_program_count(fHandle);

  1100. 

  1101.         if (count > 0)

  1102.         {

  1103.             pData->midiprog.createNew(count);

  1104. 

  1105.             // Update data

  1106.             for (i=0; i < count; ++i)

  1107.             {

  1108.                 const NativeMidiProgram* const mpDesc(fDescriptor->get_midi_program_info(fHandle, i));

  1109.                 CARLA_ASSERT(mpDesc != nullptr);

  1110.                 CARLA_ASSERT(mpDesc->name != nullptr);

  1111. 

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

  1113.                 pData->midiprog.data[i].program = mpDesc->program;

  1114.                 pData->midiprog.data[i].name    = carla_strdup(mpDesc->name);

  1115.             }

  1116.         }

  1117. 

  1118. #ifndef BUILD_BRIDGE

  1119.         // Update OSC Names

  1120.         if (pData->engine->isOscControlRegistered())

  1121.         {

  1122.             pData->engine->oscSend_control_set_midi_program_count(pData->id, count);

  1123. 

  1124.             for (i=0; i < count; ++i)

  1125.                 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);

  1126.         }

  1127. #endif

  1128. 

  1129.         if (doInit)

  1130.         {

  1131.             if (count > 0)

  1132.                 setMidiProgram(0, false, false, false);

  1133.         }

  1134.         else

  1135.         {

  1136.             // Check if current program is invalid

  1137.             bool programChanged = false;

  1138. 

  1139.             if (count == oldCount+1)

  1140.             {

  1141.                 // one midi program added, probably created by user

  1142.                 pData->midiprog.current = oldCount;

  1143.                 programChanged = true;

  1144.             }

  1145.             else if (current < 0 && count > 0)

  1146.             {

  1147.                 // programs exist now, but not before

  1148.                 pData->midiprog.current = 0;

  1149.                 programChanged = true;

  1150.             }

  1151.             else if (current >= 0 && count == 0)

  1152.             {

  1153.                 // programs existed before, but not anymore

  1154.                 pData->midiprog.current = -1;

  1155.                 programChanged = true;

  1156.             }

  1157.             else if (current >= static_cast<int32_t>(count))

  1158.             {

  1159.                 // current midi program > count

  1160.                 pData->midiprog.current = 0;

  1161.                 programChanged = true;

  1162.             }

  1163.             else

  1164.             {

  1165.                 // no change

  1166.                 pData->midiprog.current = current;

  1167.             }

  1168. 

  1169.             if (programChanged)

  1170.                 setMidiProgram(pData->midiprog.current, true, true, true);

  1171. 

  1172.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1173.         }

  1174.     }

  1175. 

  1176.     // -------------------------------------------------------------------

  1177.     // Plugin processing

  1178. 

  1179.     void activate() noexcept override

  1180.     {

  1181.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1182.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1183. 

  1184.         if (fDescriptor->activate != nullptr)

  1185.         {

  1186.             try {

  1187.                 fDescriptor->activate(fHandle);

  1188.             } catch(...) {}

  1189. 

  1190.             if (fHandle2 != nullptr)

  1191.             {

  1192.                 try {

  1193.                     fDescriptor->activate(fHandle2);

  1194.                 } catch(...) {}

  1195.             }

  1196.         }

  1197.     }

  1198. 

  1199.     void deactivate() noexcept override

  1200.     {

  1201.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1202.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1203. 

  1204.         if (fDescriptor->deactivate != nullptr)

  1205.         {

  1206.             try {

  1207.                 fDescriptor->deactivate(fHandle);

  1208.             } catch(...) {}

  1209. 

  1210.             if (fHandle2 != nullptr)

  1211.             {

  1212.                 try {

  1213.                     fDescriptor->deactivate(fHandle2);

  1214.                 } catch(...) {}

  1215.             }

  1216.         }

  1217.     }

  1218. 

  1219.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames) override

  1220.     {

  1221.         // --------------------------------------------------------------------------------------------------------

  1222.         // Check if active

  1223. 

  1224.         if (! pData->active)

  1225.         {

  1226.             // disable any output sound

  1227.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1228.                 FLOAT_CLEAR(outBuffer[i], frames);

  1229. 

  1230.             return;

  1231.         }

  1232. 

  1233.         fMidiEventCount = 0;

  1234.         carla_zeroStruct<NativeMidiEvent>(fMidiEvents, kPluginMaxMidiEvents*2);

  1235. 

  1236.         // --------------------------------------------------------------------------------------------------------

  1237.         // Check if needs reset

  1238. 

  1239.         if (pData->needsReset)

  1240.         {

  1241.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1242.             {

  1243.                 for (uint8_t k=0, i=MAX_MIDI_CHANNELS; k < MAX_MIDI_CHANNELS; ++k)

  1244.                 {

  1245.                     fMidiEvents[k].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + k);

  1246.                     fMidiEvents[k].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1247.                     fMidiEvents[k].data[2] = 0;

  1248.                     fMidiEvents[k].size    = 3;

  1249. 

  1250.                     fMidiEvents[k+i].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + k);

  1251.                     fMidiEvents[k+i].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1252.                     fMidiEvents[k+i].data[2] = 0;

  1253.                     fMidiEvents[k+i].size    = 3;

  1254.                 }

  1255. 

  1256.                 fMidiEventCount = MAX_MIDI_CHANNELS*2;

  1257.             }

  1258.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1259.             {

  1260.                 for (uint8_t k=0; k < MAX_MIDI_NOTE; ++k)

  1261.                 {

  1262.                     fMidiEvents[k].data[0] = static_cast<uint8_t>(MIDI_STATUS_NOTE_OFF + pData->ctrlChannel);

  1263.                     fMidiEvents[k].data[1] = k;

  1264.                     fMidiEvents[k].data[2] = 0;

  1265.                     fMidiEvents[k].size    = 3;

  1266.                 }

  1267. 

  1268.                 fMidiEventCount = MAX_MIDI_NOTE;

  1269.             }

  1270. 

  1271.             pData->needsReset = false;

  1272.         }

  1273. 

  1274.         CARLA_PROCESS_CONTINUE_CHECK;

  1275. 

  1276.         // --------------------------------------------------------------------------------------------------------

  1277.         // Set TimeInfo

  1278. 

  1279.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1280. 

  1281.         fTimeInfo.playing = timeInfo.playing;

  1282.         fTimeInfo.frame   = timeInfo.frame;

  1283.         fTimeInfo.usecs   = timeInfo.usecs;

  1284. 

  1285.         if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1286.         {

  1287.             fTimeInfo.bbt.valid = true;

  1288. 

  1289.             fTimeInfo.bbt.bar  = timeInfo.bbt.bar;

  1290.             fTimeInfo.bbt.beat = timeInfo.bbt.beat;

  1291.             fTimeInfo.bbt.tick = timeInfo.bbt.tick;

  1292.             fTimeInfo.bbt.barStartTick = timeInfo.bbt.barStartTick;

  1293. 

  1294.             fTimeInfo.bbt.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1295.             fTimeInfo.bbt.beatType    = timeInfo.bbt.beatType;

  1296. 

  1297.             fTimeInfo.bbt.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1298.             fTimeInfo.bbt.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1299.         }

  1300.         else

  1301.             fTimeInfo.bbt.valid = false;

  1302. 

  1303.         CARLA_PROCESS_CONTINUE_CHECK;

  1304. 

  1305.         // --------------------------------------------------------------------------------------------------------

  1306.         // Event Input and Processing

  1307. 

  1308.         if (pData->event.portIn != nullptr)

  1309.         {

  1310.             // ----------------------------------------------------------------------------------------------------

  1311.             // MIDI Input (External)

  1312. 

  1313.             if (pData->extNotes.mutex.tryLock())

  1314.             {

  1315.                 while (fMidiEventCount < kPluginMaxMidiEvents*2 && ! pData->extNotes.data.isEmpty())

  1316.                 {

  1317.                     const ExternalMidiNote& note(pData->extNotes.data.getFirst(true));

  1318. 

  1319.                     CARLA_ASSERT(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1320. 

  1321.                     fMidiEvents[fMidiEventCount].data[0] = note.channel + (note.velo > 0) ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF;

  1322.                     fMidiEvents[fMidiEventCount].data[1] = note.note;

  1323.                     fMidiEvents[fMidiEventCount].data[2] = note.velo;

  1324.                     fMidiEvents[fMidiEventCount].size    = 3;

  1325. 

  1326.                     fMidiEventCount += 1;

  1327.                 }

  1328. 

  1329.                 pData->extNotes.mutex.unlock();

  1330. 

  1331.             } // End of MIDI Input (External)

  1332. 

  1333.             // ----------------------------------------------------------------------------------------------------

  1334.             // Event Input (System)

  1335. 

  1336.             bool allNotesOffSent = false;

  1337.             bool sampleAccurate  = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1338. 

  1339.             uint32_t time, nEvents = pData->event.portIn->getEventCount();

  1340.             uint32_t startTime  = 0;

  1341.             uint32_t timeOffset = 0;

  1342.             uint32_t nextBankId = 0;

  1343. 

  1344.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1345.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1346. 

  1347.             for (uint32_t i=0; i < nEvents; ++i)

  1348.             {

  1349.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1350. 

  1351.                 time = event.time;

  1352. 

  1353.                 if (time >= frames)

  1354.                     continue;

  1355. 

  1356.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  1357. 

  1358.                 if (time > timeOffset && sampleAccurate)

  1359.                 {

  1360.                     if (processSingle(inBuffer, outBuffer, time - timeOffset, timeOffset))

  1361.                     {

  1362.                         startTime  = 0;

  1363.                         timeOffset = time;

  1364. 

  1365.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1366.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1367.                         else

  1368.                             nextBankId = 0;

  1369. 

  1370.                         if (fMidiEventCount > 0)

  1371.                         {

  1372.                             carla_zeroStruct<NativeMidiEvent>(fMidiEvents, fMidiEventCount);

  1373.                             fMidiEventCount = 0;

  1374.                         }

  1375.                     }

  1376.                     else

  1377.                         startTime += timeOffset;

  1378.                 }

  1379. 

  1380.                 // Control change

  1381.                 switch (event.type)

  1382.                 {

  1383.                 case kEngineEventTypeNull:

  1384.                     break;

  1385. 

  1386.                 case kEngineEventTypeControl:

  1387.                 {

  1388.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1389. 

  1390.                     switch (ctrlEvent.type)

  1391.                     {

  1392.                     case kEngineControlEventTypeNull:

  1393.                         break;

  1394. 

  1395.                     case kEngineControlEventTypeParameter:

  1396.                     {

  1397. #ifndef BUILD_BRIDGE

  1398.                         // Control backend stuff

  1399.                         if (event.channel == pData->ctrlChannel)

  1400.                         {

  1401.                             float value;

  1402. 

  1403.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) > 0)

  1404.                             {

  1405.                                 value = ctrlEvent.value;

  1406.                                 setDryWet(value, false, false);

  1407.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1408.                             }

  1409. 

  1410.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) > 0)

  1411.                             {

  1412.                                 value = ctrlEvent.value*127.0f/100.0f;

  1413.                                 setVolume(value, false, false);

  1414.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1415.                             }

  1416. 

  1417.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) > 0)

  1418.                             {

  1419.                                 float left, right;

  1420.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1421. 

  1422.                                 if (value < 0.0f)

  1423.                                 {

  1424.                                     left  = -1.0f;

  1425.                                     right = (value*2.0f)+1.0f;

  1426.                                 }

  1427.                                 else if (value > 0.0f)

  1428.                                 {

  1429.                                     left  = (value*2.0f)-1.0f;

  1430.                                     right = 1.0f;

  1431.                                 }

  1432.                                 else

  1433.                                 {

  1434.                                     left  = -1.0f;

  1435.                                     right = 1.0f;

  1436.                                 }

  1437. 

  1438.                                 setBalanceLeft(left, false, false);

  1439.                                 setBalanceRight(right, false, false);

  1440.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1441.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1442.                             }

  1443.                         }

  1444. #endif

  1445. 

  1446.                         // Control plugin parameters

  1447.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1448.                         {

  1449.                             if (pData->param.data[k].midiChannel != event.channel)

  1450.                                 continue;

  1451.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1452.                                 continue;

  1453.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1454.                                 continue;

  1455.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1456.                                 continue;

  1457. 

  1458.                             float value;

  1459. 

  1460.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1461.                             {

  1462.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1463.                             }

  1464.                             else

  1465.                             {

  1466.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1467. 

  1468.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1469.                                     value = std::rint(value);

  1470.                             }

  1471. 

  1472.                             setParameterValue(k, value, false, false, false);

  1473.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1474.                         }

  1475. 

  1476.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param <= 0x5F)

  1477.                         {

  1478.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1479.                                 continue;

  1480. 

  1481.                             fMidiEvents[fMidiEventCount].port    = 0;

  1482.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1483.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1484.                             fMidiEvents[fMidiEventCount].data[1] = static_cast<uint8_t>(ctrlEvent.param);

  1485.                             fMidiEvents[fMidiEventCount].data[2] = uint8_t(ctrlEvent.value*127.0f);

  1486.                             fMidiEvents[fMidiEventCount].size    = 3;

  1487. 

  1488.                             fMidiEventCount += 1;

  1489.                         }

  1490. 

  1491.                         break;

  1492.                     }

  1493. 

  1494.                     case kEngineControlEventTypeMidiBank:

  1495.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1496.                             nextBankId = ctrlEvent.param;

  1497.                         break;

  1498. 

  1499.                     case kEngineControlEventTypeMidiProgram:

  1500.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1501.                         {

  1502.                             const uint32_t nextProgramId(ctrlEvent.param);

  1503. 

  1504.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1505.                             {

  1506.                                 if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1507.                                 {

  1508.                                     fDescriptor->set_midi_program(fHandle, event.channel, nextBankId, nextProgramId);

  1509. 

  1510.                                     if (fHandle2 != nullptr)

  1511.                                         fDescriptor->set_midi_program(fHandle2, event.channel, nextBankId, nextProgramId);

  1512. 

  1513.                                     fCurMidiProgs[event.channel] = k;

  1514. 

  1515.                                     if (event.channel == pData->ctrlChannel)

  1516.                                         pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0f);

  1517. 

  1518.                                     break;

  1519.                                 }

  1520.                             }

  1521.                         }

  1522.                         break;

  1523. 

  1524.                     case kEngineControlEventTypeAllSoundOff:

  1525.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1526.                         {

  1527.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1528.                                 continue;

  1529. 

  1530.                             fMidiEvents[fMidiEventCount].port    = 0;

  1531.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1532.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1533.                             fMidiEvents[fMidiEventCount].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1534.                             fMidiEvents[fMidiEventCount].data[2] = 0;

  1535.                             fMidiEvents[fMidiEventCount].size    = 3;

  1536. 

  1537.                             fMidiEventCount += 1;

  1538.                         }

  1539.                         break;

  1540. 

  1541.                     case kEngineControlEventTypeAllNotesOff:

  1542.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1543.                         {

  1544.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1545.                             {

  1546.                                 allNotesOffSent = true;

  1547.                                 sendMidiAllNotesOffToCallback();

  1548.                             }

  1549. 

  1550.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1551.                                 continue;

  1552. 

  1553.                             fMidiEvents[fMidiEventCount].port    = 0;

  1554.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1555.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1556.                             fMidiEvents[fMidiEventCount].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1557.                             fMidiEvents[fMidiEventCount].data[2] = 0;

  1558.                             fMidiEvents[fMidiEventCount].size    = 3;

  1559. 

  1560.                             fMidiEventCount += 1;

  1561.                         }

  1562.                         break;

  1563.                     }

  1564. 

  1565.                     break;

  1566.                 }

  1567. 

  1568.                 case kEngineEventTypeMidi:

  1569.                 {

  1570.                     if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1571.                         continue;

  1572. 

  1573.                     const EngineMidiEvent& midiEvent(event.midi);

  1574. 

  1575.                     uint8_t status  = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1576.                     uint8_t channel = event.channel;

  1577. 

  1578.                     if (MIDI_IS_STATUS_CHANNEL_PRESSURE(status) && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1579.                         continue;

  1580.                     if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1581.                         continue;

  1582.                     if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1583.                         continue;

  1584.                     if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1585.                         continue;

  1586. 

  1587.                     // Fix bad note-off

  1588.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1589.                         status = MIDI_STATUS_NOTE_OFF;

  1590. 

  1591.                     fMidiEvents[fMidiEventCount].port = 0;

  1592.                     fMidiEvents[fMidiEventCount].time = sampleAccurate ? startTime : time;

  1593.                     fMidiEvents[fMidiEventCount].size = midiEvent.size;

  1594. 

  1595.                     fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(status + channel);

  1596.                     fMidiEvents[fMidiEventCount].data[1] = midiEvent.data[1];

  1597.                     fMidiEvents[fMidiEventCount].data[2] = midiEvent.data[2];

  1598.                     fMidiEvents[fMidiEventCount].data[3] = midiEvent.data[3];

  1599. 

  1600.                     fMidiEventCount += 1;

  1601. 

  1602.                     if (status == MIDI_STATUS_NOTE_ON)

  1603.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, channel, midiEvent.data[1], midiEvent.data[2]);

  1604.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1605.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, channel, midiEvent.data[1], 0.0f);

  1606. 

  1607.                     break;

  1608.                 }

  1609.                 }

  1610.             }

  1611. 

  1612.             pData->postRtEvents.trySplice();

  1613. 

  1614.             if (frames > timeOffset)

  1615.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset);

  1616. 

  1617.         } // End of Event Input and Processing

  1618. 

  1619.         // --------------------------------------------------------------------------------------------------------

  1620.         // Plugin processing (no events)

  1621. 

  1622.         else

  1623.         {

  1624.             processSingle(inBuffer, outBuffer, frames, 0);

  1625. 

  1626.         } // End of Plugin processing (no events)

  1627. 

  1628.         CARLA_PROCESS_CONTINUE_CHECK;

  1629. 

  1630.         // --------------------------------------------------------------------------------------------------------

  1631.         // Control and MIDI Output

  1632. 

  1633.         if (fMidiOut.count > 0 || pData->event.portOut != nullptr)

  1634.         {

  1635.             float value, curValue;

  1636. 

  1637.             for (uint32_t k=0; k < pData->param.count; ++k)

  1638.             {

  1639.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1640.                     continue;

  1641. 

  1642.                 curValue = fDescriptor->get_parameter_value(fHandle, k);

  1643.                 pData->param.ranges[k].fixValue(curValue);

  1644. 

  1645.                 if (pData->param.data[k].midiCC > 0)

  1646.                 {

  1647.                     value = pData->param.ranges[k].getNormalizedValue(curValue);

  1648.                     pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, pData->param.data[k].midiCC, value);

  1649.                 }

  1650.             }

  1651. 

  1652.             // reverse lookup MIDI events

  1653.             for (uint32_t k = (kPluginMaxMidiEvents*2)-1; k >= fMidiEventCount; --k)

  1654.             {

  1655.                 if (fMidiEvents[k].data[0] == 0)

  1656.                     break;

  1657. 

  1658.                 const uint8_t channel = uint8_t(MIDI_GET_CHANNEL_FROM_DATA(fMidiEvents[k].data));

  1659.                 const uint8_t port    = fMidiEvents[k].port;

  1660. 

  1661.                 if (pData->event.portOut != nullptr)

  1662.                     pData->event.portOut->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].size, fMidiEvents[k].data);

  1663.                 else if (port < fMidiOut.count)

  1664.                     fMidiOut.ports[port]->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].size, fMidiEvents[k].data);

  1665.             }

  1666. 

  1667.         } // End of Control and MIDI Output

  1668.     }

  1669. 

  1670.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1671.     {

  1672.         CARLA_ASSERT(frames > 0);

  1673. 

  1674.         if (frames == 0)

  1675.             return false;

  1676. 

  1677.         if (pData->audioIn.count > 0)

  1678.         {

  1679.             CARLA_ASSERT(inBuffer != nullptr);

  1680.             if (inBuffer == nullptr)

  1681.                 return false;

  1682.         }

  1683.         if (pData->audioOut.count > 0)

  1684.         {

  1685.             CARLA_ASSERT(outBuffer != nullptr);

  1686.             if (outBuffer == nullptr)

  1687.                 return false;

  1688.         }

  1689. 

  1690.         uint32_t i, k;

  1691. 

  1692.         // --------------------------------------------------------------------------------------------------------

  1693.         // Try lock, silence otherwise

  1694. 

  1695.         if (pData->engine->isOffline())

  1696.         {

  1697.             pData->singleMutex.lock();

  1698.         }

  1699.         else if (! pData->singleMutex.tryLock())

  1700.         {

  1701.             for (i=0; i < pData->audioOut.count; ++i)

  1702.             {

  1703.                 for (k=0; k < frames; ++k)

  1704.                     outBuffer[i][k+timeOffset] = 0.0f;

  1705.             }

  1706. 

  1707.             return false;

  1708.         }

  1709. 

  1710.         // --------------------------------------------------------------------------------------------------------

  1711.         // Reset audio buffers

  1712. 

  1713.         for (i=0; i < pData->audioIn.count; ++i)

  1714.             FLOAT_COPY(fAudioInBuffers[i], inBuffer[i]+timeOffset, frames);

  1715. 

  1716.         for (i=0; i < pData->audioOut.count; ++i)

  1717.             FLOAT_CLEAR(fAudioOutBuffers[i], frames);

  1718. 

  1719.         // --------------------------------------------------------------------------------------------------------

  1720.         // Run plugin

  1721. 

  1722.         fIsProcessing = true;

  1723. 

  1724.         if (fHandle2 == nullptr)

  1725.         {

  1726.             fDescriptor->process(fHandle, fAudioInBuffers, fAudioOutBuffers, frames, fMidiEvents, fMidiEventCount);

  1727.         }

  1728.         else

  1729.         {

  1730.             fDescriptor->process(fHandle,

  1731.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[0] : nullptr,

  1732.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[0] : nullptr,

  1733.                                  frames, fMidiEvents, fMidiEventCount);

  1734. 

  1735.             fDescriptor->process(fHandle2,

  1736.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[1] : nullptr,

  1737.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[1] : nullptr,

  1738.                                  frames, fMidiEvents, fMidiEventCount);

  1739.         }

  1740. 

  1741.         fIsProcessing = false;

  1742.         fTimeInfo.frame += frames;

  1743. 

  1744. #ifndef BUILD_BRIDGE

  1745.         // --------------------------------------------------------------------------------------------------------

  1746.         // Post-processing (dry/wet, volume and balance)

  1747. 

  1748.         {

  1749.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && pData->postProc.dryWet != 1.0f;

  1750.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && (pData->postProc.balanceLeft != -1.0f || pData->postProc.balanceRight != 1.0f);

  1751. 

  1752.             bool isPair;

  1753.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1754. 

  1755.             for (i=0; i < pData->audioOut.count; ++i)

  1756.             {

  1757.                 // Dry/Wet

  1758.                 if (doDryWet)

  1759.                 {

  1760.                     for (k=0; k < frames; ++k)

  1761.                     {

  1762.                         bufValue = fAudioInBuffers[(pData->audioIn.count == 1) ? 0 : i][k];

  1763.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1764.                     }

  1765.                 }

  1766. 

  1767.                 // Balance

  1768.                 if (doBalance)

  1769.                 {

  1770.                     isPair = (i % 2 == 0);

  1771. 

  1772.                     if (isPair)

  1773.                     {

  1774.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1775.                         FLOAT_COPY(oldBufLeft, fAudioOutBuffers[i], frames);

  1776.                     }

  1777. 

  1778.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1779.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1780. 

  1781.                     for (k=0; k < frames; ++k)

  1782.                     {

  1783.                         if (isPair)

  1784.                         {

  1785.                             // left

  1786.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1787.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1788.                         }

  1789.                         else

  1790.                         {

  1791.                             // right

  1792.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1793.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1794.                         }

  1795.                     }

  1796.                 }

  1797. 

  1798.                 // Volume (and buffer copy)

  1799.                 {

  1800.                     for (k=0; k < frames; ++k)

  1801.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1802.                 }

  1803.             }

  1804. 

  1805.         } // End of Post-processing

  1806. #else

  1807.         for (i=0; i < pData->audioOut.count; ++i)

  1808.         {

  1809.             for (k=0; k < frames; ++k)

  1810.                 outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1811.         }

  1812. #endif

  1813. 

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

  1815. 

  1816.         pData->singleMutex.unlock();

  1817.         return true;

  1818.     }

  1819. 

  1820.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1821.     {

  1822.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1823.         carla_debug("NativePlugin::bufferSizeChanged(%i)", newBufferSize);

  1824. 

  1825.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1826.         {

  1827.             if (fAudioInBuffers[i] != nullptr)

  1828.                 delete[] fAudioInBuffers[i];

  1829.             fAudioInBuffers[i] = new float[newBufferSize];

  1830.         }

  1831. 

  1832.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1833.         {

  1834.             if (fAudioOutBuffers[i] != nullptr)

  1835.                 delete[] fAudioOutBuffers[i];

  1836.             fAudioOutBuffers[i] = new float[newBufferSize];

  1837.         }

  1838. 

  1839.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1840.         {

  1841.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, newBufferSize, nullptr, 0.0f);

  1842. 

  1843.             if (fHandle2 != nullptr)

  1844.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, newBufferSize, nullptr, 0.0f);

  1845.         }

  1846.     }

  1847. 

  1848.     void sampleRateChanged(const double newSampleRate) override

  1849.     {

  1850.         CARLA_ASSERT_INT(newSampleRate > 0.0, (int)newSampleRate);

  1851.         carla_debug("NativePlugin::sampleRateChanged(%g)", newSampleRate);

  1852. 

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

  1854.         {

  1855.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  1856. 

  1857.             if (fHandle2 != nullptr)

  1858.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  1859.         }

  1860.     }

  1861. 

  1862.     void offlineModeChanged(const bool isOffline) override

  1863.     {

  1864.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1865.         {

  1866.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  1867. 

  1868.             if (fHandle2 != nullptr)

  1869.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  1870.         }

  1871.     }

  1872. 

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

  1874.     // Plugin buffers

  1875. 

  1876.     void initBuffers() override

  1877.     {

  1878.         fMidiIn.initBuffers();

  1879.         fMidiOut.initBuffers();

  1880. 

  1881.         CarlaPlugin::initBuffers();

  1882.     }

  1883. 

  1884.     void clearBuffers() override

  1885.     {

  1886.         carla_debug("NativePlugin::clearBuffers() - start");

  1887. 

  1888.         if (fAudioInBuffers != nullptr)

  1889.         {

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

  1891.             {

  1892.                 if (fAudioInBuffers[i] != nullptr)

  1893.                 {

  1894.                     delete[] fAudioInBuffers[i];

  1895.                     fAudioInBuffers[i] = nullptr;

  1896.                 }

  1897.             }

  1898. 

  1899.             delete[] fAudioInBuffers;

  1900.             fAudioInBuffers = nullptr;

  1901.         }

  1902. 

  1903.         if (fAudioOutBuffers != nullptr)

  1904.         {

  1905.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1906.             {

  1907.                 if (fAudioOutBuffers[i] != nullptr)

  1908.                 {

  1909.                     delete[] fAudioOutBuffers[i];

  1910.                     fAudioOutBuffers[i] = nullptr;

  1911.                 }

  1912.             }

  1913. 

  1914.             delete[] fAudioOutBuffers;

  1915.             fAudioOutBuffers = nullptr;

  1916.         }

  1917. 

  1918.         fMidiIn.clear();

  1919.         fMidiOut.clear();

  1920. 

  1921.         CarlaPlugin::clearBuffers();

  1922. 

  1923.         carla_debug("NativePlugin::clearBuffers() - end");

  1924.     }

  1925. 

  1926.     // -------------------------------------------------------------------

  1927.     // Post-poned UI Stuff

  1928. 

  1929.     void uiParameterChange(const uint32_t index, const float /*value*/) noexcept override

  1930.     {

  1931.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1932.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1933.         CARLA_ASSERT(index < pData->param.count);

  1934. 

  1935.         if (! fIsUiVisible)

  1936.             return;

  1937.         if (fDescriptor == nullptr || fHandle == nullptr)

  1938.             return;

  1939.         if (index >= pData->param.count)

  1940.             return;

  1941. 

  1942.         //if (fDescriptor->ui_set_parameter_value != nullptr)

  1943.         //    fDescriptor->ui_set_parameter_value(fHandle, index, value);

  1944.     }

  1945. 

  1946.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1947.     {

  1948.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1949.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1950.         CARLA_ASSERT(index < pData->midiprog.count);

  1951. 

  1952.         if (! fIsUiVisible)

  1953.             return;

  1954.         if (fDescriptor == nullptr || fHandle == nullptr)

  1955.             return;

  1956.         if (index >= pData->midiprog.count)

  1957.             return;

  1958. 

  1959.         //if (fDescriptor->ui_set_midi_program != nullptr) // TODO

  1960.         //    fDescriptor->ui_set_midi_program(fHandle, 0, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  1961.     }

  1962. 

  1963.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1964.     {

  1965.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1966.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1967.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1968.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1969.         CARLA_ASSERT(velo > 0 && velo < MAX_MIDI_VALUE);

  1970. 

  1971.         if (! fIsUiVisible)

  1972.             return;

  1973.         if (fDescriptor == nullptr || fHandle == nullptr)

  1974.             return;

  1975.         if (channel >= MAX_MIDI_CHANNELS)

  1976.             return;

  1977.         if (note >= MAX_MIDI_NOTE)

  1978.             return;

  1979.         if (velo >= MAX_MIDI_VALUE)

  1980.             return;

  1981. 

  1982.         // TODO

  1983.     }

  1984. 

  1985.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  1986.     {

  1987.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1988.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1989.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1990.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1991. 

  1992.         if (! fIsUiVisible)

  1993.             return;

  1994.         if (fDescriptor == nullptr || fHandle == nullptr)

  1995.             return;

  1996.         if (channel >= MAX_MIDI_CHANNELS)

  1997.             return;

  1998.         if (note >= MAX_MIDI_NOTE)

  1999.             return;

  2000. 

  2001.         // TODO

  2002.     }

  2003. 

  2004.     // -------------------------------------------------------------------

  2005. 

  2006. protected:

  2007.     uint32_t handleGetBufferSize() const

  2008.     {

  2009.         return pData->engine->getBufferSize();

  2010.     }

  2011. 

  2012.     double handleGetSampleRate() const

  2013.     {

  2014.         return pData->engine->getSampleRate();

  2015.     }

  2016. 

  2017.     bool handleIsOffline() const

  2018.     {

  2019.         return pData->engine->isOffline();

  2020.     }

  2021. 

  2022.     const NativeTimeInfo* handleGetTimeInfo() const

  2023.     {

  2024.         CARLA_SAFE_ASSERT_RETURN(fIsProcessing, nullptr);

  2025. 

  2026.         return &fTimeInfo;

  2027.     }

  2028. 

  2029.     bool handleWriteMidiEvent(const NativeMidiEvent* const event)

  2030.     {

  2031.         CARLA_ASSERT(pData->enabled);

  2032.         CARLA_ASSERT(fIsProcessing);

  2033.         CARLA_ASSERT(fMidiOut.count > 0 || pData->event.portOut != nullptr);

  2034.         CARLA_ASSERT(event != nullptr);

  2035.         CARLA_ASSERT(event->data[0] != 0);

  2036. 

  2037.         if (! pData->enabled)

  2038.             return false;

  2039.         if (fMidiOut.count == 0)

  2040.             return false;

  2041.         if (event == nullptr)

  2042.             return false;

  2043.         if (event->data[0] == 0)

  2044.             return false;

  2045.         if (! fIsProcessing)

  2046.         {

  2047.             carla_stderr2("NativePlugin::handleWriteMidiEvent(%p) - received MIDI out event outside audio thread, ignoring", event);

  2048.             return false;

  2049.         }

  2050. 

  2051.         // reverse-find first free event, and put it there

  2052.         for (uint32_t i=(kPluginMaxMidiEvents*2)-1; i > fMidiEventCount; --i)

  2053.         {

  2054.             if (fMidiEvents[i].data[0] == 0)

  2055.             {

  2056.                 std::memcpy(&fMidiEvents[i], event, sizeof(NativeMidiEvent));

  2057.                 return true;

  2058.             }

  2059.         }

  2060. 

  2061.         return false;

  2062.     }

  2063. 

  2064.     void handleUiParameterChanged(const uint32_t index, const float value)

  2065.     {

  2066.         setParameterValue(index, value, false, true, true);

  2067.     }

  2068. 

  2069.     void handleUiCustomDataChanged(const char* const key, const char* const value)

  2070.     {

  2071.         setCustomData(CUSTOM_DATA_TYPE_STRING, key, value, false);

  2072.     }

  2073. 

  2074.     void handleUiClosed()

  2075.     {

  2076.         pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2077.         fIsUiVisible = false;

  2078.     }

  2079. 

  2080.     const char* handleUiOpenFile(const bool isDir, const char* const title, const char* const filter)

  2081.     {

  2082.         return carla_standalone_file_callback(FILE_CALLBACK_OPEN, isDir, title, filter);

  2083.     }

  2084. 

  2085.     const char* handleUiSaveFile(const bool isDir, const char* const title, const char* const filter)

  2086.     {

  2087.         return carla_standalone_file_callback(FILE_CALLBACK_SAVE, isDir, title, filter);

  2088.     }

  2089. 

  2090.     intptr_t handleDispatcher(const NativeHostDispatcherOpcode opcode, const int32_t index, const intptr_t value, void* const ptr, const float opt)

  2091.     {

  2092.         carla_debug("NativePlugin::handleDispatcher(%i, %i, " P_INTPTR ", %p, %f)", opcode, index, value, ptr, opt);

  2093. 

  2094.         intptr_t ret = 0;

  2095. 

  2096.         switch (opcode)

  2097.         {

  2098.         case ::HOST_OPCODE_NULL:

  2099.             break;

  2100. #ifdef BUILD_BRIDGE

  2101.         case ::HOST_OPCODE_SET_VOLUME:

  2102.         case ::HOST_OPCODE_SET_DRYWET:

  2103.         case ::HOST_OPCODE_SET_BALANCE_LEFT:

  2104.         case ::HOST_OPCODE_SET_BALANCE_RIGHT:

  2105.         case ::HOST_OPCODE_SET_PANNING:

  2106.             break;

  2107. #else

  2108.         case ::HOST_OPCODE_SET_VOLUME:

  2109.             setVolume(opt, true, true);

  2110.             break;

  2111.         case ::HOST_OPCODE_SET_DRYWET:

  2112.             setDryWet(opt, true, true);

  2113.             break;

  2114.         case ::HOST_OPCODE_SET_BALANCE_LEFT:

  2115.             setBalanceLeft(opt, true, true);

  2116.             break;

  2117.         case ::HOST_OPCODE_SET_BALANCE_RIGHT:

  2118.             setBalanceRight(opt, true, true);

  2119.             break;

  2120.         case ::HOST_OPCODE_SET_PANNING:

  2121.             setPanning(opt, true, true);

  2122.             break;

  2123. #endif

  2124.         case HOST_OPCODE_GET_PARAMETER_MIDI_CC:

  2125.         case HOST_OPCODE_SET_PARAMETER_MIDI_CC:

  2126.             // TODO

  2127.             break;

  2128.         case ::HOST_OPCODE_SET_PROCESS_PRECISION:

  2129.             // TODO

  2130.             break;

  2131.         case ::HOST_OPCODE_UPDATE_PARAMETER:

  2132.             // TODO

  2133.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2134.             break;

  2135.         case ::HOST_OPCODE_UPDATE_MIDI_PROGRAM:

  2136.             // TODO

  2137.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2138.             break;

  2139.         case ::HOST_OPCODE_RELOAD_PARAMETERS:

  2140.             reload(); // FIXME

  2141.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PARAMETERS, pData->id, -1, 0, 0.0f, nullptr);

  2142.             break;

  2143.         case ::HOST_OPCODE_RELOAD_MIDI_PROGRAMS:

  2144.             reloadPrograms(false);

  2145.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, -1, 0, 0.0f, nullptr);

  2146.             break;

  2147.         case ::HOST_OPCODE_RELOAD_ALL:

  2148.             reload();

  2149.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_ALL, pData->id, -1, 0, 0.0f, nullptr);

  2150.             break;

  2151.         case HOST_OPCODE_UI_UNAVAILABLE:

  2152.             pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, -1, 0, 0.0f, nullptr);

  2153.             break;

  2154.         }

  2155. 

  2156.         return ret;

  2157. 

  2158.         // unused for now

  2159.         (void)index;

  2160.         (void)value;

  2161.         (void)ptr;

  2162.     }

  2163. 

  2164.     // -------------------------------------------------------------------

  2165. 

  2166. public:

  2167.     static size_t getPluginCount() noexcept

  2168.     {

  2169.         return sPluginDescriptors.count();

  2170.     }

  2171. 

  2172.     static const NativePluginDescriptor* getPluginDescriptor(const size_t index) noexcept

  2173.     {

  2174.         CARLA_SAFE_ASSERT_RETURN(index < sPluginDescriptors.count(), nullptr);

  2175. 

  2176.         return sPluginDescriptors.getAt(index);

  2177.     }

  2178. 

  2179.     static void registerPlugin(const NativePluginDescriptor* desc)

  2180.     {

  2181.         sPluginDescriptors.append(desc);

  2182.     }

  2183. 

  2184.     // -------------------------------------------------------------------

  2185. 

  2186.     bool init(const char* const name, const char* const label)

  2187.     {

  2188.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2189. 

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

  2191.         // first checks

  2192. 

  2193.         if (pData->client != nullptr)

  2194.         {

  2195.             pData->engine->setLastError("Plugin client is already registered");

  2196.             return false;

  2197.         }

  2198. 

  2199.         if (label == nullptr && label[0] != '\0')

  2200.         {

  2201.             pData->engine->setLastError("null label");

  2202.             return false;

  2203.         }

  2204. 

  2205.         // ---------------------------------------------------------------

  2206.         // get descriptor that matches label

  2207. 

  2208.         for (LinkedList<const NativePluginDescriptor*>::Itenerator it = sPluginDescriptors.begin(); it.valid(); it.next())

  2209.         {

  2210.             fDescriptor = it.getValue();

  2211. 

  2212.             CARLA_SAFE_ASSERT_BREAK(fDescriptor != nullptr);

  2213. 

  2214.             carla_debug("Check vs \"%s\"", fDescriptor->label);

  2215. 

  2216.             if (fDescriptor->label != nullptr && std::strcmp(fDescriptor->label, label) == 0)

  2217.                 break;

  2218. 

  2219.             fDescriptor = nullptr;

  2220.         }

  2221. 

  2222.         if (fDescriptor == nullptr)

  2223.         {

  2224.             pData->engine->setLastError("Invalid internal plugin");

  2225.             return false;

  2226.         }

  2227. 

  2228.         // ---------------------------------------------------------------

  2229.         // set icon

  2230. 

  2231.         if (std::strcmp(fDescriptor->label, "audiofile") == 0)

  2232.             pData->iconName = carla_strdup("file");

  2233.         else if (std::strcmp(fDescriptor->label, "midifile") == 0)

  2234.             pData->iconName = carla_strdup("file");

  2235.         else if (std::strcmp(fDescriptor->label, "sunvoxfile") == 0)

  2236.             pData->iconName = carla_strdup("file");

  2237. 

  2238.         else if (std::strcmp(fDescriptor->label, "3BandEQ") == 0)

  2239.             pData->iconName = carla_strdup("distrho");

  2240.         else if (std::strcmp(fDescriptor->label, "3BandSplitter") == 0)

  2241.             pData->iconName = carla_strdup("distrho");

  2242.         else if (std::strcmp(fDescriptor->label, "Nekobi") == 0)

  2243.             pData->iconName = carla_strdup("distrho");

  2244.         else if (std::strcmp(fDescriptor->label, "Notes") == 0)

  2245.             pData->iconName = carla_strdup("distrho");

  2246.         else if (std::strcmp(fDescriptor->label, "PingPongPan") == 0)

  2247.             pData->iconName = carla_strdup("distrho");

  2248.         else if (std::strcmp(fDescriptor->label, "StereoEnhancer") == 0)

  2249.             pData->iconName = carla_strdup("distrho");

  2250. 

  2251.         // ---------------------------------------------------------------

  2252.         // get info

  2253. 

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

  2255.             pData->name = pData->engine->getUniquePluginName(name);

  2256.         else if (fDescriptor->name != nullptr && fDescriptor->name[0] != '\0')

  2257.             pData->name = pData->engine->getUniquePluginName(fDescriptor->name);

  2258.         else

  2259.             pData->name = pData->engine->getUniquePluginName(label);

  2260. 

  2261.         {

  2262.             CARLA_ASSERT(fHost.uiName == nullptr);

  2263. 

  2264.             char uiName[std::strlen(pData->name)+6+1];

  2265.             std::strcpy(uiName, pData->name);

  2266.             std::strcat(uiName, " (GUI)");

  2267. 

  2268.             fHost.uiName = carla_strdup(uiName);

  2269.         }

  2270. 

  2271.         // ---------------------------------------------------------------

  2272.         // register client

  2273. 

  2274.         pData->client = pData->engine->addClient(this);

  2275. 

  2276.         if (pData->client == nullptr || ! pData->client->isOk())

  2277.         {

  2278.             pData->engine->setLastError("Failed to register plugin client");

  2279.             return false;

  2280.         }

  2281. 

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

  2283.         // initialize plugin

  2284. 

  2285.         fHandle = fDescriptor->instantiate(&fHost);

  2286. 

  2287.         if (fHandle == nullptr)

  2288.         {

  2289.             pData->engine->setLastError("Plugin failed to initialize");

  2290.             return false;

  2291.         }

  2292. 

  2293.         // ---------------------------------------------------------------

  2294.         // load plugin settings

  2295. 

  2296.         {

  2297.             const bool hasMidiProgs(fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_count(fHandle) > 0);

  2298. 

  2299.             // set default options

  2300.             pData->options = 0x0;

  2301. 

  2302.             if (hasMidiProgs && (fDescriptor->supports & ::PLUGIN_SUPPORTS_PROGRAM_CHANGES) == 0)

  2303.                 pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  2304. 

  2305.             if (getMidiInCount() > 0 || (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS) != 0)

  2306.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2307. 

  2308.             if (pData->engine->getOptions().forceStereo)

  2309.                 pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2310. 

  2311.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_CHANNEL_PRESSURE)

  2312.                 pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  2313.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_NOTE_AFTERTOUCH)

  2314.                 pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  2315.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_PITCHBEND)

  2316.                 pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  2317.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_ALL_SOUND_OFF)

  2318.                 pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  2319. 

  2320.             // set identifier string

  2321.             CarlaString identifier("Native/");

  2322.             identifier += label;

  2323.             pData->identifier = identifier.dup();

  2324. 

  2325.             // load settings

  2326.             pData->options = pData->loadSettings(pData->options, getOptionsAvailable());

  2327. 

  2328.             // ignore settings, we need this anyway

  2329.             if (getMidiInCount() > 0 || (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS) != 0)

  2330.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2331.         }

  2332. 

  2333.         return true;

  2334.     }

  2335. 

  2336.     class ScopedInitializer

  2337.     {

  2338.     public:

  2339.         ScopedInitializer()

  2340.         {

  2341.             carla_register_all_plugins();

  2342.         }

  2343. 

  2344.         ~ScopedInitializer()

  2345.         {

  2346.             sPluginDescriptors.clear();

  2347.         }

  2348.     };

  2349. 

  2350. private:

  2351.     NativePluginHandle   fHandle;

  2352.     NativePluginHandle   fHandle2;

  2353.     NativeHostDescriptor fHost;

  2354.     const NativePluginDescriptor* fDescriptor;

  2355. 

  2356.     bool fIsProcessing;

  2357.     bool fIsUiVisible;

  2358. 

  2359.     float**         fAudioInBuffers;

  2360.     float**         fAudioOutBuffers;

  2361.     uint32_t        fMidiEventCount;

  2362.     NativeMidiEvent fMidiEvents[kPluginMaxMidiEvents*2];

  2363. 

  2364.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  2365. 

  2366.     NativePluginMidiData fMidiIn;

  2367.     NativePluginMidiData fMidiOut;

  2368. 

  2369.     NativeTimeInfo fTimeInfo;

  2370. 

  2371.     static LinkedList<const NativePluginDescriptor*> sPluginDescriptors;

  2372. 

  2373.     // -------------------------------------------------------------------

  2374. 

  2375.     #define handlePtr ((NativePlugin*)handle)

  2376. 

  2377.     static uint32_t carla_host_get_buffer_size(NativeHostHandle handle)

  2378.     {

  2379.         return handlePtr->handleGetBufferSize();

  2380.     }

  2381. 

  2382.     static double carla_host_get_sample_rate(NativeHostHandle handle)

  2383.     {

  2384.         return handlePtr->handleGetSampleRate();

  2385.     }

  2386. 

  2387.     static bool carla_host_is_offline(NativeHostHandle handle)

  2388.     {

  2389.         return handlePtr->handleIsOffline();

  2390.     }

  2391. 

  2392.     static const NativeTimeInfo* carla_host_get_time_info(NativeHostHandle handle)

  2393.     {

  2394.         return handlePtr->handleGetTimeInfo();

  2395.     }

  2396. 

  2397.     static bool carla_host_write_midi_event(NativeHostHandle handle, const NativeMidiEvent* event)

  2398.     {

  2399.         return handlePtr->handleWriteMidiEvent(event);

  2400.     }

  2401. 

  2402.     static void carla_host_ui_parameter_changed(NativeHostHandle handle, uint32_t index, float value)

  2403.     {

  2404.         handlePtr->handleUiParameterChanged(index, value);

  2405.     }

  2406. 

  2407.     static void carla_host_ui_custom_data_changed(NativeHostHandle handle, const char* key, const char* value)

  2408.     {

  2409.         handlePtr->handleUiCustomDataChanged(key, value);

  2410.     }

  2411. 

  2412.     static void carla_host_ui_closed(NativeHostHandle handle)

  2413.     {

  2414.         handlePtr->handleUiClosed();

  2415.     }

  2416. 

  2417.     static const char* carla_host_ui_open_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2418.     {

  2419.         return handlePtr->handleUiOpenFile(isDir, title, filter);

  2420.     }

  2421. 

  2422.     static const char* carla_host_ui_save_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2423.     {

  2424.         return handlePtr->handleUiSaveFile(isDir, title, filter);

  2425.     }

  2426. 

  2427.     static intptr_t carla_host_dispatcher(NativeHostHandle handle, NativeHostDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  2428.     {

  2429.         return handlePtr->handleDispatcher(opcode, index, value, ptr, opt);

  2430.     }

  2431. 

  2432.     #undef handlePtr

  2433. 

  2434.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(NativePlugin)

  2435. };

  2436. 

  2437. LinkedList<const NativePluginDescriptor*> NativePlugin::sPluginDescriptors;

  2438. 

  2439. static const NativePlugin::ScopedInitializer _si;

  2440. 

  2441. CARLA_BACKEND_END_NAMESPACE

  2442. 

  2443. void carla_register_native_plugin(const NativePluginDescriptor* desc)

  2444. {

  2445.     CARLA_BACKEND_USE_NAMESPACE

  2446.     NativePlugin::registerPlugin(desc);

  2447. }

  2448. 

  2449. #endif // WANT_NATIVE

  2450. 

  2451. // -----------------------------------------------------------------------

  2452. 

  2453. CARLA_BACKEND_START_NAMESPACE

  2454. 

  2455. #ifdef WANT_NATIVE

  2456. size_t CarlaPlugin::getNativePluginCount() noexcept

  2457. {

  2458.     return NativePlugin::getPluginCount();

  2459. }

  2460. 

  2461. const NativePluginDescriptor* CarlaPlugin::getNativePluginDescriptor(const size_t index) noexcept

  2462. {

  2463.     return NativePlugin::getPluginDescriptor(index);

  2464. }

  2465. #endif

  2466. 

  2467. // -----------------------------------------------------------------------

  2468. 

  2469. CarlaPlugin* CarlaPlugin::newNative(const Initializer& init)

  2470. {

  2471.     carla_debug("CarlaPlugin::newNative({%p, \"%s\", \"%s\", \"%s\"})", init.engine, init.filename, init.name, init.label);

  2472. 

  2473. #ifdef WANT_NATIVE

  2474.     NativePlugin* const plugin(new NativePlugin(init.engine, init.id));

  2475. 

  2476.     if (! plugin->init(init.name, init.label))

  2477.     {

  2478.         delete plugin;

  2479.         return nullptr;

  2480.     }

  2481. 

  2482.     plugin->reload();

  2483. 

  2484.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && ! plugin->canRunInRack())

  2485.     {

  2486.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo Internal plugins, sorry!");

  2487.         delete plugin;

  2488.         return nullptr;

  2489.     }

  2490. 

  2491.     return plugin;

  2492. #else

  2493.     init.engine->setLastError("Internal plugins support not available");

  2494.     return nullptr;

  2495. #endif

  2496. }

  2497. 

  2498. CARLA_BACKEND_END_NAMESPACE

  2499. 

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