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

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  1. /*

  2.  * Carla Native Plugin

  3.  * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>

  4.  *

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

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

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

  8.  * the License, or any later version.

  9.  *

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

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

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

  13.  * GNU General Public License for more details.

  14.  *

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

  16.  */

  17. 

  18. #include "CarlaPluginInternal.hpp"

  19. 

  20. #ifdef WANT_NATIVE

  21. 

  22. #include "CarlaNative.h"

  23. #include "CarlaHost.h"

  24. 

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

  26. 

  27. CARLA_BACKEND_START_NAMESPACE

  28. 

  29. #if 0

  30. }

  31. #endif

  32. 

  33. struct NativePluginMidiData {

  34.     uint32_t  count;

  35.     uint32_t* indexes;

  36.     CarlaEngineEventPort** ports;

  37. 

  38.     NativePluginMidiData()

  39.         : count(0),

  40.           indexes(nullptr),

  41.           ports(nullptr) {}

  42. 

  43.     ~NativePluginMidiData()

  44.     {

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

  46.         CARLA_ASSERT(ports == nullptr);

  47.         CARLA_ASSERT(indexes == nullptr);

  48.     }

  49. 

  50.     void createNew(const uint32_t newCount)

  51.     {

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

  53.         CARLA_ASSERT(ports == nullptr);

  54.         CARLA_ASSERT(indexes == nullptr);

  55.         CARLA_ASSERT_INT(newCount > 0, newCount);

  56. 

  57.         if (ports != nullptr || indexes != nullptr || newCount == 0)

  58.             return;

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

  237.             return param->scalePointCount;

  238. 

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

  240.         return 0;

  241.     }

  242. 

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

  244.     // Information (current data)

  245. 

  246.     // nothing

  247. 

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

  249.     // Information (per-plugin data)

  250. 

  251.     unsigned int getOptionsAvailable() const override

  252.     {

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

  254. 

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

  256. 

  257.         unsigned int options = 0x0;

  258. 

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

  260.             options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  261. 

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

  263.             options |= PLUGIN_OPTION_FIXED_BUFFERS;

  264. 

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

  266.         {

  267.             if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  268.                 options |= PLUGIN_OPTION_FORCE_STEREO;

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

  270.                 options |= PLUGIN_OPTION_FORCE_STEREO;

  271.         }

  272. 

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

  274.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

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

  276.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

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

  278.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

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

  280.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

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

  282.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  283. 

  284.         return options;

  285.     }

  286. 

  287.     float getParameterValue(const uint32_t parameterId) const override

  288.     {

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

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

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

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

  293. 

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

  295.     }

  296. 

  297.     float getParameterScalePointValue(const uint32_t parameterId, const uint32_t scalePointId) const override

  298.     {

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

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

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

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

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

  304. 

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

  306.         {

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

  308.             return scalePoint->value;

  309.         }

  310. 

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

  312.         return 0.0f;

  313.     }

  314. 

  315.     void getLabel(char* const strBuf) const override

  316.     {

  317.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  318. 

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

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

  321.         else

  322.             CarlaPlugin::getLabel(strBuf);

  323.     }

  324. 

  325.     void getMaker(char* const strBuf) const override

  326.     {

  327.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  328. 

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

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

  331.         else

  332.             CarlaPlugin::getMaker(strBuf);

  333.     }

  334. 

  335.     void getCopyright(char* const strBuf) const override

  336.     {

  337.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  338. 

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

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

  341.         else

  342.             CarlaPlugin::getCopyright(strBuf);

  343.     }

  344. 

  345.     void getRealName(char* const strBuf) const override

  346.     {

  347.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  348. 

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

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

  351.         else

  352.             CarlaPlugin::getRealName(strBuf);

  353.     }

  354. 

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

  356.     {

  357.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  359.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  361. 

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

  363.         {

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

  365.             {

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

  367.                 return;

  368.             }

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

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

  371.         }

  372. 

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

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

  375.     }

  376. 

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

  378.     {

  379.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

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

  382.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  384. 

  385.         const float value(fDescriptor->get_parameter_value(fHandle, parameterId));

  386. 

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

  388.         {

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

  390.             return;

  391.         }

  392. 

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

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

  395.     }

  396. 

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

  398.     {

  399.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  401.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  403. 

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

  405.         {

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

  407.             {

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

  409.                 return;

  410.             }

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

  412.         }

  413. 

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

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

  416.     }

  417. 

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

  419.     {

  420.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  422.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

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

  425. 

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

  427.         {

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

  429. 

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

  431.             {

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

  433.                 return;

  434.             }

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

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

  437.         }

  438. 

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

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

  441.     }

  442. 

  443.     // -------------------------------------------------------------------

  444.     // Set data (state)

  445. 

  446.     void prepareForSave() override

  447.     {

  448.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  449.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  450. 

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

  452.         {

  453.             char strBuf[STR_MAX+1];

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

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

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

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

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

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

  460. 

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

  462.         }

  463. 

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

  465.             return;

  466. 

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

  468.         {

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

  470.             std::free(data);

  471.         }

  472.     }

  473. 

  474.     // -------------------------------------------------------------------

  475.     // Set data (internal stuff)

  476. 

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

  478.     {

  479.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  480.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  482. 

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

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

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

  486. 

  487.         if (fHost.uiName != nullptr)

  488.             delete[] fHost.uiName;

  489.         fHost.uiName = carla_strdup(uiName);

  490. 

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

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

  493. 

  494.         CarlaPlugin::setName(newName);

  495.     }

  496. 

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

  498.     {

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

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

  501. 

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

  503.     }

  504. 

  505.     // -------------------------------------------------------------------

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

  507. 

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

  509.     {

  510.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  512.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  514. 

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

  516. 

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

  518. 

  519.         if (fHandle2 != nullptr)

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

  521. 

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

  523.     }

  524. 

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

  526.     {

  527.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  528.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

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

  531.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

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

  533. 

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

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

  536. 

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

  538.         {

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

  540.             {

  541.                 const ScopedSingleProcessLocker spl(this, true);

  542. 

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

  544. 

  545.                 if (fHandle2 != nullptr)

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

  547.             }

  548.         }

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

  550.         {

  551. #if 0 // TODO

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

  553. 

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

  555.             {

  556.                 uint i = 0;

  557.                 foreach (const QString& midiProg, midiProgramList)

  558.                 {

  559.                     bool ok;

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

  561. 

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

  563.                     {

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

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

  566. 

  567.                         fDescriptor->set_midi_program(fHandle, i, bank, program);

  568. 

  569.                         if (fHandle2 != nullptr)

  570.                             fDescriptor->set_midi_program(fHandle2, i, bank, program);

  571. 

  572.                         fCurMidiProgs[i] = index;

  573. 

  574.                         if (pData->ctrlChannel == static_cast<int32_t>(i))

  575.                         {

  576.                             pData->midiprog.current = index;

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

  578.                         }

  579.                     }

  580. 

  581.                     ++i;

  582.                 }

  583.             }

  584. #endif

  585.         }

  586.         else

  587.         {

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

  589.             {

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

  591. 

  592.                 if (fHandle2 != nullptr)

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

  594.             }

  595. 

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

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

  598.         }

  599. 

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

  601.     }

  602. 

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

  604.     {

  605.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  606.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  608. 

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

  610.            return;

  611. 

  612.         if (index >= 0)

  613.         {

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

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

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

  617. 

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

  619. 

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

  621. 

  622.             if (fHandle2 != nullptr)

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

  624. 

  625.             fCurMidiProgs[channel] = index;

  626.         }

  627. 

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

  629.     }

  630. 

  631.     // -------------------------------------------------------------------

  632.     // Set gui stuff

  633. 

  634.     void showCustomUI(const bool yesNo) override

  635.     {

  636.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  637.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  638. 

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

  640.             return;

  641. 

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

  643.         fIsUiVisible = yesNo;

  644. 

  645.         if (! yesNo)

  646.             return;

  647. 

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

  649.         {

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

  651.             {

  652.                 const CustomData& cData(*it);

  653. 

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

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

  656.             }

  657.         }

  658. 

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

  660.         {

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

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

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

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

  665. 

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

  667.         }

  668. 

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

  670.         {

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

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

  673.         }

  674.     }

  675. 

  676.     void idle() override

  677.     {

  678.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  679.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  680. 

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

  682.             fDescriptor->ui_idle(fHandle);

  683. 

  684.         CarlaPlugin::idle();

  685.     }

  686. 

  687.     // -------------------------------------------------------------------

  688.     // Plugin state

  689. 

  690.     void reload() override

  691.     {

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

  693.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  694.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  696. 

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

  698. 

  699.         // Safely disable plugin for reload

  700.         const ScopedDisabler sd(this);

  701. 

  702.         if (pData->active)

  703.             deactivate();

  704. 

  705.         clearBuffers();

  706. 

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

  708. 

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

  710. 

  711.         bool forcedStereoIn, forcedStereoOut;

  712.         forcedStereoIn = forcedStereoOut = false;

  713. 

  714.         bool needsCtrlIn, needsCtrlOut;

  715.         needsCtrlIn = needsCtrlOut = false;

  716. 

  717.         aIns   = fDescriptor->audioIns;

  718.         aOuts  = fDescriptor->audioOuts;

  719.         mIns   = fDescriptor->midiIns;

  720.         mOuts  = fDescriptor->midiOuts;

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

  722. 

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

  724.         {

  725.             if (fHandle2 == nullptr)

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

  727. 

  728.             if (fHandle2 != nullptr)

  729.             {

  730.                 if (aIns == 1)

  731.                 {

  732.                     aIns = 2;

  733.                     forcedStereoIn = true;

  734.                 }

  735. 

  736.                 if (aOuts == 1)

  737.                 {

  738.                     aOuts = 2;

  739.                     forcedStereoOut = true;

  740.                 }

  741.             }

  742.         }

  743. 

  744.         if (aIns > 0)

  745.         {

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

  747.             fAudioInBuffers = new float*[aIns];

  748. 

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

  750.                 fAudioInBuffers[i] = nullptr;

  751.         }

  752. 

  753.         if (aOuts > 0)

  754.         {

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

  756.             fAudioOutBuffers = new float*[aOuts];

  757.             needsCtrlIn = true;

  758. 

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

  760.                 fAudioOutBuffers[i] = nullptr;

  761.         }

  762. 

  763.         if (mIns > 0)

  764.         {

  765.             fMidiIn.createNew(mIns);

  766.             needsCtrlIn = (mIns == 1);

  767.         }

  768. 

  769.         if (mOuts > 0)

  770.         {

  771.             fMidiOut.createNew(mOuts);

  772.             needsCtrlOut = (mOuts == 1);

  773.         }

  774. 

  775.         if (params > 0)

  776.         {

  777.             pData->param.createNew(params);

  778.         }

  779. 

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

  781.         CarlaString portName;

  782. 

  783.         // Audio Ins

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

  785.         {

  786.             portName.clear();

  787. 

  788.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  789.             {

  790.                 portName  = pData->name;

  791.                 portName += ":";

  792.             }

  793. 

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

  795.             {

  796.                 portName += "input_";

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

  798.             }

  799.             else

  800.                 portName += "input";

  801. 

  802.             portName.truncate(portNameSize);

  803. 

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

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

  806. 

  807.             if (forcedStereoIn)

  808.             {

  809.                 portName += "_2";

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

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

  812.                 break;

  813.             }

  814.         }

  815. 

  816.         // Audio Outs

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

  818.         {

  819.             portName.clear();

  820. 

  821.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  822.             {

  823.                 portName  = pData->name;

  824.                 portName += ":";

  825.             }

  826. 

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

  828.             {

  829.                 portName += "output_";

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

  831.             }

  832.             else

  833.                 portName += "output";

  834. 

  835.             portName.truncate(portNameSize);

  836. 

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

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

  839. 

  840.             if (forcedStereoOut)

  841.             {

  842.                 portName += "_2";

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

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

  845.                 break;

  846.             }

  847.         }

  848. 

  849.         // MIDI Input (only if multiple)

  850.         if (mIns > 1)

  851.         {

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

  853.             {

  854.                 portName.clear();

  855. 

  856.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  857.                 {

  858.                     portName  = pData->name;

  859.                     portName += ":";

  860.                 }

  861. 

  862.                 portName += "midi-in_";

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

  864.                 portName.truncate(portNameSize);

  865. 

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

  867.                 fMidiIn.indexes[j] = j;

  868.             }

  869.         }

  870. 

  871.         // MIDI Output (only if multiple)

  872.         if (mOuts > 1)

  873.         {

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

  875.             {

  876.                 portName.clear();

  877. 

  878.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  879.                 {

  880.                     portName  = pData->name;

  881.                     portName += ":";

  882.                 }

  883. 

  884.                 portName += "midi-out_";

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

  886.                 portName.truncate(portNameSize);

  887. 

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

  889.                 fMidiOut.indexes[j] = j;

  890.             }

  891.         }

  892. 

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

  894.         {

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

  896. 

  897.             CARLA_SAFE_ASSERT_CONTINUE(paramInfo != nullptr);

  898. 

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

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

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

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

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

  904. 

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

  906. 

  907.             // min value

  908.             min = paramInfo->ranges.min;

  909. 

  910.             // max value

  911.             max = paramInfo->ranges.max;

  912. 

  913.             if (min > max)

  914.                 max = min;

  915.             else if (max < min)

  916.                 min = max;

  917. 

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

  919.             {

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

  921.                 max = min + 0.1f;

  922.             }

  923. 

  924.             // default value

  925.             def = paramInfo->ranges.def;

  926. 

  927.             if (def < min)

  928.                 def = min;

  929.             else if (def > max)

  930.                 def = max;

  931. 

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

  933.             {

  934.                 min *= sampleRate;

  935.                 max *= sampleRate;

  936.                 def *= sampleRate;

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

  938.             }

  939. 

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

  941.             {

  942.                 step = max - min;

  943.                 stepSmall = step;

  944.                 stepLarge = step;

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

  946.             }

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

  948.             {

  949.                 step = 1.0f;

  950.                 stepSmall = 1.0f;

  951.                 stepLarge = 10.0f;

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

  953.             }

  954.             else

  955.             {

  956.                 float range = max - min;

  957.                 step = range/100.0f;

  958.                 stepSmall = range/1000.0f;

  959.                 stepLarge = range/10.0f;

  960.             }

  961. 

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

  963.             {

  964.                 needsCtrlOut = true;

  965.             }

  966.             else

  967.             {

  968.                 pData->param.data[j].hints |= PARAMETER_IS_INPUT;

  969.                 needsCtrlIn = true;

  970.             }

  971. 

  972.             // extra parameter hints

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

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

  975. 

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

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

  978. 

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

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

  981. 

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

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

  984. 

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

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

  987. 

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

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

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

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

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

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

  994.         }

  995. 

  996.         if (needsCtrlIn)

  997.         {

  998.             portName.clear();

  999. 

  1000.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1001.             {

  1002.                 portName  = pData->name;

  1003.                 portName += ":";

  1004.             }

  1005. 

  1006.             portName += "events-in";

  1007.             portName.truncate(portNameSize);

  1008. 

  1009.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  1010.         }

  1011. 

  1012.         if (needsCtrlOut)

  1013.         {

  1014.             portName.clear();

  1015. 

  1016.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1017.             {

  1018.                 portName  = pData->name;

  1019.                 portName += ":";

  1020.             }

  1021. 

  1022.             portName += "events-out";

  1023.             portName.truncate(portNameSize);

  1024. 

  1025.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  1026.         }

  1027. 

  1028.         if (forcedStereoIn || forcedStereoOut)

  1029.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1030.         else

  1031.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  1032. 

  1033.         // plugin hints

  1034.         pData->hints = 0x0;

  1035. 

  1036.         if (aOuts > 0 && (aIns == aOuts || aIns == 1))

  1037.             pData->hints |= PLUGIN_CAN_DRYWET;

  1038. 

  1039.         if (aOuts > 0)

  1040.             pData->hints |= PLUGIN_CAN_VOLUME;

  1041. 

  1042.         if (aOuts >= 2 && aOuts % 2 == 0)

  1043.             pData->hints |= PLUGIN_CAN_BALANCE;

  1044. 

  1045.         // native plugin hints

  1046.         if (fDescriptor->hints & ::PLUGIN_IS_RTSAFE)

  1047.             pData->hints |= PLUGIN_IS_RTSAFE;

  1048.         if (fDescriptor->hints & ::PLUGIN_IS_SYNTH)

  1049.             pData->hints |= PLUGIN_IS_SYNTH;

  1050.         if (fDescriptor->hints & ::PLUGIN_HAS_UI)

  1051.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  1052.         if (fDescriptor->hints & ::PLUGIN_NEEDS_SINGLE_THREAD)

  1053.             pData->hints |= PLUGIN_NEEDS_SINGLE_THREAD;

  1054.         if (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS)

  1055.             pData->hints |= PLUGIN_NEEDS_FIXED_BUFFERS;

  1056. 

  1057.         // extra plugin hints

  1058.         pData->extraHints = 0x0;

  1059. 

  1060.         if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0) && mIns <= 1 && mOuts <= 1)

  1061.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1062. 

  1063.         bufferSizeChanged(pData->engine->getBufferSize());

  1064.         reloadPrograms(true);

  1065. 

  1066.         if (pData->active)

  1067.             activate();

  1068. 

  1069.         carla_debug("NativePlugin::reload() - end");

  1070.     }

  1071. 

  1072.     void reloadPrograms(const bool init) override

  1073.     {

  1074.         carla_debug("NativePlugin::reloadPrograms(%s)", bool2str(init));

  1075.         uint32_t i, oldCount  = pData->midiprog.count;

  1076.         const int32_t current = pData->midiprog.current;

  1077. 

  1078.         // Delete old programs

  1079.         pData->midiprog.clear();

  1080. 

  1081.         // Query new programs

  1082.         uint32_t count = 0;

  1083.         if (fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_info != nullptr && fDescriptor->set_midi_program != nullptr)

  1084.             count = fDescriptor->get_midi_program_count(fHandle);

  1085. 

  1086.         if (count > 0)

  1087.         {

  1088.             pData->midiprog.createNew(count);

  1089. 

  1090.             // Update data

  1091.             for (i=0; i < count; ++i)

  1092.             {

  1093.                 const NativeMidiProgram* const mpDesc(fDescriptor->get_midi_program_info(fHandle, i));

  1094.                 CARLA_ASSERT(mpDesc != nullptr);

  1095.                 CARLA_ASSERT(mpDesc->name != nullptr);

  1096. 

  1097.                 pData->midiprog.data[i].bank    = mpDesc->bank;

  1098.                 pData->midiprog.data[i].program = mpDesc->program;

  1099.                 pData->midiprog.data[i].name    = carla_strdup(mpDesc->name);

  1100.             }

  1101.         }

  1102. 

  1103. #ifndef BUILD_BRIDGE

  1104.         // Update OSC Names

  1105.         if (pData->engine->isOscControlRegistered())

  1106.         {

  1107.             pData->engine->oscSend_control_set_midi_program_count(pData->id, count);

  1108. 

  1109.             for (i=0; i < count; ++i)

  1110.                 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);

  1111.         }

  1112. #endif

  1113. 

  1114.         if (init)

  1115.         {

  1116.             if (count > 0)

  1117.                 setMidiProgram(0, false, false, false);

  1118.         }

  1119.         else

  1120.         {

  1121.             // Check if current program is invalid

  1122.             bool programChanged = false;

  1123. 

  1124.             if (count == oldCount+1)

  1125.             {

  1126.                 // one midi program added, probably created by user

  1127.                 pData->midiprog.current = oldCount;

  1128.                 programChanged = true;

  1129.             }

  1130.             else if (current < 0 && count > 0)

  1131.             {

  1132.                 // programs exist now, but not before

  1133.                 pData->midiprog.current = 0;

  1134.                 programChanged = true;

  1135.             }

  1136.             else if (current >= 0 && count == 0)

  1137.             {

  1138.                 // programs existed before, but not anymore

  1139.                 pData->midiprog.current = -1;

  1140.                 programChanged = true;

  1141.             }

  1142.             else if (current >= static_cast<int32_t>(count))

  1143.             {

  1144.                 // current midi program > count

  1145.                 pData->midiprog.current = 0;

  1146.                 programChanged = true;

  1147.             }

  1148.             else

  1149.             {

  1150.                 // no change

  1151.                 pData->midiprog.current = current;

  1152.             }

  1153. 

  1154.             if (programChanged)

  1155.                 setMidiProgram(pData->midiprog.current, true, true, true);

  1156. 

  1157.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1158.         }

  1159.     }

  1160. 

  1161.     // -------------------------------------------------------------------

  1162.     // Plugin processing

  1163. 

  1164.     void activate() override

  1165.     {

  1166.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1167.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1168. 

  1169.         if (fDescriptor->activate != nullptr)

  1170.         {

  1171.             fDescriptor->activate(fHandle);

  1172. 

  1173.             if (fHandle2 != nullptr)

  1174.                 fDescriptor->activate(fHandle2);

  1175.         }

  1176.     }

  1177. 

  1178.     void deactivate() override

  1179.     {

  1180.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1181.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1182. 

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

  1184.         {

  1185.             fDescriptor->deactivate(fHandle);

  1186. 

  1187.             if (fHandle2 != nullptr)

  1188.                 fDescriptor->deactivate(fHandle2);

  1189.         }

  1190.     }

  1191. 

  1192.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames) override

  1193.     {

  1194.         uint32_t i, k;

  1195. 

  1196.         // --------------------------------------------------------------------------------------------------------

  1197.         // Check if active

  1198. 

  1199.         if (! pData->active)

  1200.         {

  1201.             // disable any output sound

  1202.             for (i=0; i < pData->audioOut.count; ++i)

  1203.             {

  1204. #ifdef USE_JUCE

  1205.                 FloatVectorOperations::clear(outBuffer[i], frames);

  1206. #else

  1207. #endif

  1208.             }

  1209. 

  1210.             return;

  1211.         }

  1212. 

  1213.         fMidiEventCount = 0;

  1214.         carla_zeroStruct<NativeMidiEvent>(fMidiEvents, kPluginMaxMidiEvents*2);

  1215. 

  1216.         // --------------------------------------------------------------------------------------------------------

  1217.         // Check if needs reset

  1218. 

  1219.         if (pData->needsReset)

  1220.         {

  1221.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1222.             {

  1223.                 for (k=0, i=MAX_MIDI_CHANNELS; k < MAX_MIDI_CHANNELS; ++k)

  1224.                 {

  1225.                     fMidiEvents[k].data[0] = MIDI_STATUS_CONTROL_CHANGE + k;

  1226.                     fMidiEvents[k].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1227.                     fMidiEvents[k].data[2] = 0;

  1228.                     fMidiEvents[k].size    = 3;

  1229. 

  1230.                     fMidiEvents[k+i].data[0] = MIDI_STATUS_CONTROL_CHANGE + k;

  1231.                     fMidiEvents[k+i].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1232.                     fMidiEvents[k+i].data[2] = 0;

  1233.                     fMidiEvents[k+i].size    = 3;

  1234.                 }

  1235. 

  1236.                 fMidiEventCount = MAX_MIDI_CHANNELS*2;

  1237.             }

  1238.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1239.             {

  1240.                 for (k=0; k < MAX_MIDI_NOTE; ++k)

  1241.                 {

  1242.                     fMidiEvents[k].data[0] = MIDI_STATUS_NOTE_OFF + pData->ctrlChannel;

  1243.                     fMidiEvents[k].data[1] = k;

  1244.                     fMidiEvents[k].data[2] = 0;

  1245.                     fMidiEvents[k].size    = 3;

  1246.                 }

  1247. 

  1248.                 fMidiEventCount = MAX_MIDI_NOTE;

  1249.             }

  1250. 

  1251.             pData->needsReset = false;

  1252.         }

  1253. 

  1254.         CARLA_PROCESS_CONTINUE_CHECK;

  1255. 

  1256.         // --------------------------------------------------------------------------------------------------------

  1257.         // Set TimeInfo

  1258. 

  1259.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1260. 

  1261.         fTimeInfo.playing = timeInfo.playing;

  1262.         fTimeInfo.frame   = timeInfo.frame;

  1263.         fTimeInfo.usecs   = timeInfo.usecs;

  1264. 

  1265.         if (timeInfo.valid & EngineTimeInfo::ValidBBT)

  1266.         {

  1267.             fTimeInfo.bbt.valid = true;

  1268. 

  1269.             fTimeInfo.bbt.bar  = timeInfo.bbt.bar;

  1270.             fTimeInfo.bbt.beat = timeInfo.bbt.beat;

  1271.             fTimeInfo.bbt.tick = timeInfo.bbt.tick;

  1272.             fTimeInfo.bbt.barStartTick = timeInfo.bbt.barStartTick;

  1273. 

  1274.             fTimeInfo.bbt.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1275.             fTimeInfo.bbt.beatType    = timeInfo.bbt.beatType;

  1276. 

  1277.             fTimeInfo.bbt.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1278.             fTimeInfo.bbt.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1279.         }

  1280.         else

  1281.             fTimeInfo.bbt.valid = false;

  1282. 

  1283.         CARLA_PROCESS_CONTINUE_CHECK;

  1284. 

  1285.         // --------------------------------------------------------------------------------------------------------

  1286.         // Event Input and Processing

  1287. 

  1288.         if (pData->event.portIn != nullptr)

  1289.         {

  1290.             // ----------------------------------------------------------------------------------------------------

  1291.             // MIDI Input (External)

  1292. 

  1293.             if (pData->extNotes.mutex.tryLock())

  1294.             {

  1295.                 while (fMidiEventCount < kPluginMaxMidiEvents*2 && ! pData->extNotes.data.isEmpty())

  1296.                 {

  1297.                     const ExternalMidiNote& note(pData->extNotes.data.getFirst(true));

  1298. 

  1299.                     CARLA_ASSERT(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1300. 

  1301.                     fMidiEvents[fMidiEventCount].data[0]  = (note.velo > 0) ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF;

  1302.                     fMidiEvents[fMidiEventCount].data[0] += note.channel;

  1303.                     fMidiEvents[fMidiEventCount].data[1]  = note.note;

  1304.                     fMidiEvents[fMidiEventCount].data[2]  = note.velo;

  1305.                     fMidiEvents[fMidiEventCount].size     = 3;

  1306. 

  1307.                     fMidiEventCount += 1;

  1308.                 }

  1309. 

  1310.                 pData->extNotes.mutex.unlock();

  1311. 

  1312.             } // End of MIDI Input (External)

  1313. 

  1314.             // ----------------------------------------------------------------------------------------------------

  1315.             // Event Input (System)

  1316. 

  1317.             bool allNotesOffSent = false;

  1318.             bool sampleAccurate  = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1319. 

  1320.             uint32_t time, nEvents = pData->event.portIn->getEventCount();

  1321.             uint32_t startTime  = 0;

  1322.             uint32_t timeOffset = 0;

  1323.             uint32_t nextBankId = 0;

  1324. 

  1325.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1326.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1327. 

  1328.             for (i=0; i < nEvents; ++i)

  1329.             {

  1330.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1331. 

  1332.                 time = event.time;

  1333. 

  1334.                 if (time >= frames)

  1335.                     continue;

  1336. 

  1337.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  1338. 

  1339.                 if (time > timeOffset && sampleAccurate)

  1340.                 {

  1341.                     if (processSingle(inBuffer, outBuffer, time - timeOffset, timeOffset))

  1342.                     {

  1343.                         startTime  = 0;

  1344.                         timeOffset = time;

  1345. 

  1346.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1347.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1348.                         else

  1349.                             nextBankId = 0;

  1350. 

  1351.                         if (fMidiEventCount > 0)

  1352.                         {

  1353.                             carla_zeroStruct<NativeMidiEvent>(fMidiEvents, fMidiEventCount);

  1354.                             fMidiEventCount = 0;

  1355.                         }

  1356.                     }

  1357.                     else

  1358.                         startTime += timeOffset;

  1359.                 }

  1360. 

  1361.                 // Control change

  1362.                 switch (event.type)

  1363.                 {

  1364.                 case kEngineEventTypeNull:

  1365.                     break;

  1366. 

  1367.                 case kEngineEventTypeControl:

  1368.                 {

  1369.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1370. 

  1371.                     switch (ctrlEvent.type)

  1372.                     {

  1373.                     case kEngineControlEventTypeNull:

  1374.                         break;

  1375. 

  1376.                     case kEngineControlEventTypeParameter:

  1377.                     {

  1378. #ifndef BUILD_BRIDGE

  1379.                         // Control backend stuff

  1380.                         if (event.channel == pData->ctrlChannel)

  1381.                         {

  1382.                             float value;

  1383. 

  1384.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) > 0)

  1385.                             {

  1386.                                 value = ctrlEvent.value;

  1387.                                 setDryWet(value, false, false);

  1388.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1389.                             }

  1390. 

  1391.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) > 0)

  1392.                             {

  1393.                                 value = ctrlEvent.value*127.0f/100.0f;

  1394.                                 setVolume(value, false, false);

  1395.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1396.                             }

  1397. 

  1398.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) > 0)

  1399.                             {

  1400.                                 float left, right;

  1401.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1402. 

  1403.                                 if (value < 0.0f)

  1404.                                 {

  1405.                                     left  = -1.0f;

  1406.                                     right = (value*2.0f)+1.0f;

  1407.                                 }

  1408.                                 else if (value > 0.0f)

  1409.                                 {

  1410.                                     left  = (value*2.0f)-1.0f;

  1411.                                     right = 1.0f;

  1412.                                 }

  1413.                                 else

  1414.                                 {

  1415.                                     left  = -1.0f;

  1416.                                     right = 1.0f;

  1417.                                 }

  1418. 

  1419.                                 setBalanceLeft(left, false, false);

  1420.                                 setBalanceRight(right, false, false);

  1421.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1422.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1423.                             }

  1424.                         }

  1425. #endif

  1426. 

  1427.                         // Control plugin parameters

  1428.                         for (k=0; k < pData->param.count; ++k)

  1429.                         {

  1430.                             if (pData->param.data[k].midiChannel != event.channel)

  1431.                                 continue;

  1432.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1433.                                 continue;

  1434.                             if ((pData->param.data[k].hints & PARAMETER_IS_INPUT) == 0)

  1435.                                 continue;

  1436.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1437.                                 continue;

  1438. 

  1439.                             float value;

  1440. 

  1441.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1442.                             {

  1443.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1444.                             }

  1445.                             else

  1446.                             {

  1447.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1448. 

  1449.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1450.                                     value = std::rint(value);

  1451.                             }

  1452. 

  1453.                             setParameterValue(k, value, false, false, false);

  1454.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1455.                         }

  1456. 

  1457.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param <= 0x5F)

  1458.                         {

  1459.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1460.                                 continue;

  1461. 

  1462.                             fMidiEvents[fMidiEventCount].port = 0;

  1463.                             fMidiEvents[fMidiEventCount].time = sampleAccurate ? startTime : time;

  1464.                             fMidiEvents[fMidiEventCount].data[0] = MIDI_STATUS_CONTROL_CHANGE + event.channel;

  1465.                             fMidiEvents[fMidiEventCount].data[1] = ctrlEvent.param;

  1466.                             fMidiEvents[fMidiEventCount].data[2] = ctrlEvent.value*127.0f;

  1467.                             fMidiEvents[fMidiEventCount].size    = 3;

  1468. 

  1469.                             fMidiEventCount += 1;

  1470.                         }

  1471. 

  1472.                         break;

  1473.                     }

  1474. 

  1475.                     case kEngineControlEventTypeMidiBank:

  1476.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1477.                             nextBankId = ctrlEvent.param;

  1478.                         break;

  1479. 

  1480.                     case kEngineControlEventTypeMidiProgram:

  1481.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1482.                         {

  1483.                             const uint32_t nextProgramId(ctrlEvent.param);

  1484. 

  1485.                             for (k=0; k < pData->midiprog.count; ++k)

  1486.                             {

  1487.                                 if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1488.                                 {

  1489.                                     fDescriptor->set_midi_program(fHandle, event.channel, nextBankId, nextProgramId);

  1490. 

  1491.                                     if (fHandle2 != nullptr)

  1492.                                         fDescriptor->set_midi_program(fHandle2, event.channel, nextBankId, nextProgramId);

  1493. 

  1494.                                     fCurMidiProgs[event.channel] = k;

  1495. 

  1496.                                     if (event.channel == pData->ctrlChannel)

  1497.                                         pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0f);

  1498. 

  1499.                                     break;

  1500.                                 }

  1501.                             }

  1502.                         }

  1503.                         break;

  1504. 

  1505.                     case kEngineControlEventTypeAllSoundOff:

  1506.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1507.                         {

  1508.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1509.                                 continue;

  1510. 

  1511.                             fMidiEvents[fMidiEventCount].port = 0;

  1512.                             fMidiEvents[fMidiEventCount].time = sampleAccurate ? startTime : time;

  1513.                             fMidiEvents[fMidiEventCount].data[0] = MIDI_STATUS_CONTROL_CHANGE + event.channel;

  1514.                             fMidiEvents[fMidiEventCount].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1515.                             fMidiEvents[fMidiEventCount].data[2] = 0;

  1516.                             fMidiEvents[fMidiEventCount].size    = 3;

  1517. 

  1518.                             fMidiEventCount += 1;

  1519.                         }

  1520.                         break;

  1521. 

  1522.                     case kEngineControlEventTypeAllNotesOff:

  1523.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1524.                         {

  1525.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1526.                             {

  1527.                                 allNotesOffSent = true;

  1528.                                 sendMidiAllNotesOffToCallback();

  1529.                             }

  1530. 

  1531.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1532.                                 continue;

  1533. 

  1534.                             fMidiEvents[fMidiEventCount].port = 0;

  1535.                             fMidiEvents[fMidiEventCount].time = sampleAccurate ? startTime : time;

  1536.                             fMidiEvents[fMidiEventCount].data[0] = MIDI_STATUS_CONTROL_CHANGE + event.channel;

  1537.                             fMidiEvents[fMidiEventCount].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1538.                             fMidiEvents[fMidiEventCount].data[2] = 0;

  1539.                             fMidiEvents[fMidiEventCount].size    = 3;

  1540. 

  1541.                             fMidiEventCount += 1;

  1542.                         }

  1543.                         break;

  1544.                     }

  1545. 

  1546.                     break;

  1547.                 }

  1548. 

  1549.                 case kEngineEventTypeMidi:

  1550.                 {

  1551.                     if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1552.                         continue;

  1553. 

  1554.                     const EngineMidiEvent& midiEvent(event.midi);

  1555. 

  1556.                     uint8_t status  = MIDI_GET_STATUS_FROM_DATA(midiEvent.data);

  1557.                     uint8_t channel = event.channel;

  1558. 

  1559.                     if (MIDI_IS_STATUS_CHANNEL_PRESSURE(status) && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1560.                         continue;

  1561.                     if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1562.                         continue;

  1563.                     if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1564.                         continue;

  1565.                     if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1566.                         continue;

  1567. 

  1568.                     // Fix bad note-off

  1569.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1570.                         status -= 0x10;

  1571. 

  1572.                     fMidiEvents[fMidiEventCount].port = 0;

  1573.                     fMidiEvents[fMidiEventCount].time = sampleAccurate ? startTime : time;

  1574.                     fMidiEvents[fMidiEventCount].size = midiEvent.size;

  1575. 

  1576.                     fMidiEvents[fMidiEventCount].data[0] = status + channel;

  1577.                     fMidiEvents[fMidiEventCount].data[1] = midiEvent.data[1];

  1578.                     fMidiEvents[fMidiEventCount].data[2] = midiEvent.data[2];

  1579.                     fMidiEvents[fMidiEventCount].data[3] = midiEvent.data[3];

  1580. 

  1581.                     fMidiEventCount += 1;

  1582. 

  1583.                     if (status == MIDI_STATUS_NOTE_ON)

  1584.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, channel, midiEvent.data[1], midiEvent.data[2]);

  1585.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1586.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, channel, midiEvent.data[1], 0.0f);

  1587. 

  1588.                     break;

  1589.                 }

  1590.                 }

  1591.             }

  1592. 

  1593.             pData->postRtEvents.trySplice();

  1594. 

  1595.             if (frames > timeOffset)

  1596.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset);

  1597. 

  1598.         } // End of Event Input and Processing

  1599. 

  1600.         // --------------------------------------------------------------------------------------------------------

  1601.         // Plugin processing (no events)

  1602. 

  1603.         else

  1604.         {

  1605.             processSingle(inBuffer, outBuffer, frames, 0);

  1606. 

  1607.         } // End of Plugin processing (no events)

  1608. 

  1609.         CARLA_PROCESS_CONTINUE_CHECK;

  1610. 

  1611.         // --------------------------------------------------------------------------------------------------------

  1612.         // Control and MIDI Output

  1613. 

  1614.         if (fMidiOut.count > 0 || pData->event.portOut != nullptr)

  1615.         {

  1616.             float value, curValue;

  1617. 

  1618.             for (k=0; k < pData->param.count; ++k)

  1619.             {

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

  1621.                     continue;

  1622. 

  1623.                 curValue = fDescriptor->get_parameter_value(fHandle, k);

  1624.                 pData->param.ranges[k].fixValue(curValue);

  1625. 

  1626.                 if (pData->param.data[k].midiCC > 0)

  1627.                 {

  1628.                     value = pData->param.ranges[k].getNormalizedValue(curValue);

  1629.                     pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, pData->param.data[k].midiCC, value);

  1630.                 }

  1631.             }

  1632. 

  1633.             // reverse lookup MIDI events

  1634.             for (k = (kPluginMaxMidiEvents*2)-1; k >= fMidiEventCount; --k)

  1635.             {

  1636.                 if (fMidiEvents[k].data[0] == 0)

  1637.                     break;

  1638. 

  1639.                 const uint8_t channel = MIDI_GET_CHANNEL_FROM_DATA(fMidiEvents[k].data);

  1640.                 const uint8_t port    = fMidiEvents[k].port;

  1641. 

  1642.                 if (pData->event.portOut != nullptr)

  1643.                     pData->event.portOut->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].data, fMidiEvents[k].size);

  1644.                 else if (port < fMidiOut.count)

  1645.                     fMidiOut.ports[port]->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].data, fMidiEvents[k].size);

  1646.             }

  1647. 

  1648.         } // End of Control and MIDI Output

  1649.     }

  1650. 

  1651.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1652.     {

  1653.         CARLA_ASSERT(frames > 0);

  1654. 

  1655.         if (frames == 0)

  1656.             return false;

  1657. 

  1658.         if (pData->audioIn.count > 0)

  1659.         {

  1660.             CARLA_ASSERT(inBuffer != nullptr);

  1661.             if (inBuffer == nullptr)

  1662.                 return false;

  1663.         }

  1664.         if (pData->audioOut.count > 0)

  1665.         {

  1666.             CARLA_ASSERT(outBuffer != nullptr);

  1667.             if (outBuffer == nullptr)

  1668.                 return false;

  1669.         }

  1670. 

  1671.         uint32_t i, k;

  1672. 

  1673.         // --------------------------------------------------------------------------------------------------------

  1674.         // Try lock, silence otherwise

  1675. 

  1676.         if (pData->engine->isOffline())

  1677.         {

  1678.             pData->singleMutex.lock();

  1679.         }

  1680.         else if (! pData->singleMutex.tryLock())

  1681.         {

  1682.             for (i=0; i < pData->audioOut.count; ++i)

  1683.             {

  1684.                 for (k=0; k < frames; ++k)

  1685.                     outBuffer[i][k+timeOffset] = 0.0f;

  1686.             }

  1687. 

  1688.             return false;

  1689.         }

  1690. 

  1691.         // --------------------------------------------------------------------------------------------------------

  1692.         // Reset audio buffers

  1693. 

  1694.         for (i=0; i < pData->audioIn.count; ++i)

  1695.         {

  1696. #ifdef USE_JUCE

  1697.             FloatVectorOperations::copy(fAudioInBuffers[i], inBuffer[i]+timeOffset, frames);

  1698. #else

  1699. #endif

  1700.         }

  1701. 

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

  1703.         {

  1704. #ifdef USE_JUCE

  1705.             FloatVectorOperations::clear(fAudioOutBuffers[i], frames);

  1706. #else

  1707. #endif

  1708.         }

  1709. 

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

  1711.         // Run plugin

  1712. 

  1713.         fIsProcessing = true;

  1714. 

  1715.         if (fHandle2 == nullptr)

  1716.         {

  1717.             fDescriptor->process(fHandle, fAudioInBuffers, fAudioOutBuffers, frames, fMidiEvents, fMidiEventCount);

  1718.         }

  1719.         else

  1720.         {

  1721.             fDescriptor->process(fHandle,

  1722.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[0] : nullptr,

  1723.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[0] : nullptr,

  1724.                                  frames, fMidiEvents, fMidiEventCount);

  1725. 

  1726.             fDescriptor->process(fHandle2,

  1727.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[1] : nullptr,

  1728.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[1] : nullptr,

  1729.                                  frames, fMidiEvents, fMidiEventCount);

  1730.         }

  1731. 

  1732.         fIsProcessing = false;

  1733.         fTimeInfo.frame += frames;

  1734. 

  1735. #ifndef BUILD_BRIDGE

  1736.         // --------------------------------------------------------------------------------------------------------

  1737.         // Post-processing (dry/wet, volume and balance)

  1738. 

  1739.         {

  1740.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && pData->postProc.dryWet != 1.0f;

  1741.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && (pData->postProc.balanceLeft != -1.0f || pData->postProc.balanceRight != 1.0f);

  1742. 

  1743.             bool isPair;

  1744.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1745. 

  1746.             for (i=0; i < pData->audioOut.count; ++i)

  1747.             {

  1748.                 // Dry/Wet

  1749.                 if (doDryWet)

  1750.                 {

  1751.                     for (k=0; k < frames; ++k)

  1752.                     {

  1753.                         bufValue = fAudioInBuffers[(pData->audioIn.count == 1) ? 0 : i][k];

  1754.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1755.                     }

  1756.                 }

  1757. 

  1758.                 // Balance

  1759.                 if (doBalance)

  1760.                 {

  1761.                     isPair = (i % 2 == 0);

  1762. 

  1763.                     if (isPair)

  1764.                     {

  1765.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1766. #ifdef USE_JUCE

  1767.                         FloatVectorOperations::copy(oldBufLeft, fAudioOutBuffers[i], frames);

  1768. #else

  1769. #endif

  1770.                     }

  1771. 

  1772.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1773.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1774. 

  1775.                     for (k=0; k < frames; ++k)

  1776.                     {

  1777.                         if (isPair)

  1778.                         {

  1779.                             // left

  1780.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1781.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1782.                         }

  1783.                         else

  1784.                         {

  1785.                             // right

  1786.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1787.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1788.                         }

  1789.                     }

  1790.                 }

  1791. 

  1792.                 // Volume (and buffer copy)

  1793.                 {

  1794.                     for (k=0; k < frames; ++k)

  1795.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1796.                 }

  1797.             }

  1798. 

  1799.         } // End of Post-processing

  1800. #else

  1801.         for (i=0; i < pData->audioOut.count; ++i)

  1802.         {

  1803.             for (k=0; k < frames; ++k)

  1804.                 outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1805.         }

  1806. #endif

  1807. 

  1808.         // --------------------------------------------------------------------------------------------------------

  1809. 

  1810.         pData->singleMutex.unlock();

  1811.         return true;

  1812.     }

  1813. 

  1814.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1815.     {

  1816.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1817.         carla_debug("NativePlugin::bufferSizeChanged(%i)", newBufferSize);

  1818. 

  1819.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1820.         {

  1821.             if (fAudioInBuffers[i] != nullptr)

  1822.                 delete[] fAudioInBuffers[i];

  1823.             fAudioInBuffers[i] = new float[newBufferSize];

  1824.         }

  1825. 

  1826.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1827.         {

  1828.             if (fAudioOutBuffers[i] != nullptr)

  1829.                 delete[] fAudioOutBuffers[i];

  1830.             fAudioOutBuffers[i] = new float[newBufferSize];

  1831.         }

  1832. 

  1833.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1834.         {

  1835.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, newBufferSize, nullptr, 0.0f);

  1836. 

  1837.             if (fHandle2 != nullptr)

  1838.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, newBufferSize, nullptr, 0.0f);

  1839.         }

  1840.     }

  1841. 

  1842.     void sampleRateChanged(const double newSampleRate) override

  1843.     {

  1844.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  1845.         carla_debug("NativePlugin::sampleRateChanged(%g)", newSampleRate);

  1846. 

  1847.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1848.         {

  1849.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, newSampleRate);

  1850. 

  1851.             if (fHandle2 != nullptr)

  1852.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, newSampleRate);

  1853.         }

  1854.     }

  1855. 

  1856.     void offlineModeChanged(const bool isOffline) override

  1857.     {

  1858.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1859.         {

  1860.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  1861. 

  1862.             if (fHandle2 != nullptr)

  1863.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  1864.         }

  1865.     }

  1866. 

  1867.     // -------------------------------------------------------------------

  1868.     // Plugin buffers

  1869. 

  1870.     void initBuffers() override

  1871.     {

  1872.         fMidiIn.initBuffers();

  1873.         fMidiOut.initBuffers();

  1874. 

  1875.         CarlaPlugin::initBuffers();

  1876.     }

  1877. 

  1878.     void clearBuffers() override

  1879.     {

  1880.         carla_debug("NativePlugin::clearBuffers() - start");

  1881. 

  1882.         if (fAudioInBuffers != nullptr)

  1883.         {

  1884.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1885.             {

  1886.                 if (fAudioInBuffers[i] != nullptr)

  1887.                 {

  1888.                     delete[] fAudioInBuffers[i];

  1889.                     fAudioInBuffers[i] = nullptr;

  1890.                 }

  1891.             }

  1892. 

  1893.             delete[] fAudioInBuffers;

  1894.             fAudioInBuffers = nullptr;

  1895.         }

  1896. 

  1897.         if (fAudioOutBuffers != nullptr)

  1898.         {

  1899.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1900.             {

  1901.                 if (fAudioOutBuffers[i] != nullptr)

  1902.                 {

  1903.                     delete[] fAudioOutBuffers[i];

  1904.                     fAudioOutBuffers[i] = nullptr;

  1905.                 }

  1906.             }

  1907. 

  1908.             delete[] fAudioOutBuffers;

  1909.             fAudioOutBuffers = nullptr;

  1910.         }

  1911. 

  1912.         fMidiIn.clear();

  1913.         fMidiOut.clear();

  1914. 

  1915.         CarlaPlugin::clearBuffers();

  1916. 

  1917.         carla_debug("NativePlugin::clearBuffers() - end");

  1918.     }

  1919. 

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

  1921.     // Post-poned UI Stuff

  1922. 

  1923.     void uiParameterChange(const uint32_t index, const float value) override

  1924.     {

  1925.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1926.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1927.         CARLA_ASSERT(index < pData->param.count);

  1928. 

  1929.         if (! fIsUiVisible)

  1930.             return;

  1931.         if (fDescriptor == nullptr || fHandle == nullptr)

  1932.             return;

  1933.         if (index >= pData->param.count)

  1934.             return;

  1935. 

  1936.         if (fDescriptor->ui_set_parameter_value != nullptr)

  1937.             fDescriptor->ui_set_parameter_value(fHandle, index, value);

  1938.     }

  1939. 

  1940.     void uiMidiProgramChange(const uint32_t index) override

  1941.     {

  1942.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1943.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1944.         CARLA_ASSERT(index < pData->midiprog.count);

  1945. 

  1946.         if (! fIsUiVisible)

  1947.             return;

  1948.         if (fDescriptor == nullptr || fHandle == nullptr)

  1949.             return;

  1950.         if (index >= pData->midiprog.count)

  1951.             return;

  1952. 

  1953.         if (fDescriptor->ui_set_midi_program != nullptr) // TODO

  1954.             fDescriptor->ui_set_midi_program(fHandle, 0, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  1955.     }

  1956. 

  1957.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) override

  1958.     {

  1959.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1960.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1961.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1962.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1963.         CARLA_ASSERT(velo > 0 && velo < MAX_MIDI_VALUE);

  1964. 

  1965.         if (! fIsUiVisible)

  1966.             return;

  1967.         if (fDescriptor == nullptr || fHandle == nullptr)

  1968.             return;

  1969.         if (channel >= MAX_MIDI_CHANNELS)

  1970.             return;

  1971.         if (note >= MAX_MIDI_NOTE)

  1972.             return;

  1973.         if (velo >= MAX_MIDI_VALUE)

  1974.             return;

  1975. 

  1976.         // TODO

  1977.     }

  1978. 

  1979.     void uiNoteOff(const uint8_t channel, const uint8_t note) override

  1980.     {

  1981.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1982.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1983.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1984.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1985. 

  1986.         if (! fIsUiVisible)

  1987.             return;

  1988.         if (fDescriptor == nullptr || fHandle == nullptr)

  1989.             return;

  1990.         if (channel >= MAX_MIDI_CHANNELS)

  1991.             return;

  1992.         if (note >= MAX_MIDI_NOTE)

  1993.             return;

  1994. 

  1995.         // TODO

  1996.     }

  1997. 

  1998.     // -------------------------------------------------------------------

  1999. 

  2000. protected:

  2001.     uint32_t handleGetBufferSize() const

  2002.     {

  2003.         return pData->engine->getBufferSize();

  2004.     }

  2005. 

  2006.     double handleGetSampleRate() const

  2007.     {

  2008.         return pData->engine->getSampleRate();

  2009.     }

  2010. 

  2011.     bool handleIsOffline() const

  2012.     {

  2013.         return pData->engine->isOffline();

  2014.     }

  2015. 

  2016.     const NativeTimeInfo* handleGetTimeInfo() const

  2017.     {

  2018.         CARLA_SAFE_ASSERT_RETURN(fIsProcessing, nullptr);

  2019. 

  2020.         return &fTimeInfo;

  2021.     }

  2022. 

  2023.     bool handleWriteMidiEvent(const NativeMidiEvent* const event)

  2024.     {

  2025.         CARLA_ASSERT(pData->enabled);

  2026.         CARLA_ASSERT(fIsProcessing);

  2027.         CARLA_ASSERT(fMidiOut.count > 0 || pData->event.portOut != nullptr);

  2028.         CARLA_ASSERT(event != nullptr);

  2029.         CARLA_ASSERT(event->data[0] != 0);

  2030. 

  2031.         if (! pData->enabled)

  2032.             return false;

  2033.         if (fMidiOut.count == 0)

  2034.             return false;

  2035.         if (event == nullptr)

  2036.             return false;

  2037.         if (event->data[0] == 0)

  2038.             return false;

  2039.         if (! fIsProcessing)

  2040.         {

  2041.             carla_stderr2("NativePlugin::handleWriteMidiEvent(%p) - received MIDI out event outside audio thread, ignoring", event);

  2042.             return false;

  2043.         }

  2044. 

  2045.         // reverse-find first free event, and put it there

  2046.         for (uint32_t i=(kPluginMaxMidiEvents*2)-1; i > fMidiEventCount; --i)

  2047.         {

  2048.             if (fMidiEvents[i].data[0] == 0)

  2049.             {

  2050.                 std::memcpy(&fMidiEvents[i], event, sizeof(NativeMidiEvent));

  2051.                 return true;

  2052.             }

  2053.         }

  2054. 

  2055.         return false;

  2056.     }

  2057. 

  2058.     void handleUiParameterChanged(const uint32_t index, const float value)

  2059.     {

  2060.         setParameterValue(index, value, false, true, true);

  2061.     }

  2062. 

  2063.     void handleUiCustomDataChanged(const char* const key, const char* const value)

  2064.     {

  2065.         setCustomData(CUSTOM_DATA_TYPE_STRING, key, value, false);

  2066.     }

  2067. 

  2068.     void handleUiClosed()

  2069.     {

  2070.         pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2071.         fIsUiVisible = false;

  2072.     }

  2073. 

  2074.     const char* handleUiOpenFile(const bool isDir, const char* const title, const char* const filter)

  2075.     {

  2076.         return carla_file_callback(FILE_CALLBACK_OPEN, isDir, title, filter);

  2077.     }

  2078. 

  2079.     const char* handleUiSaveFile(const bool isDir, const char* const title, const char* const filter)

  2080.     {

  2081.         return carla_file_callback(FILE_CALLBACK_SAVE, isDir, title, filter);

  2082.     }

  2083. 

  2084.     intptr_t handleDispatcher(const NativeHostDispatcherOpcode opcode, const int32_t index, const intptr_t value, void* const ptr, const float opt)

  2085.     {

  2086.         carla_debug("NativePlugin::handleDispatcher(%i, %i, " P_INTPTR ", %p, %f)", opcode, index, value, ptr, opt);

  2087. 

  2088.         intptr_t ret = 0;

  2089. 

  2090.         switch (opcode)

  2091.         {

  2092.         case ::HOST_OPCODE_NULL:

  2093.             break;

  2094. #ifdef BUILD_BRIDGE

  2095.         case ::HOST_OPCODE_SET_VOLUME:

  2096.         case ::HOST_OPCODE_SET_DRYWET:

  2097.         case ::HOST_OPCODE_SET_BALANCE_LEFT:

  2098.         case ::HOST_OPCODE_SET_BALANCE_RIGHT:

  2099.         case ::HOST_OPCODE_SET_PANNING:

  2100.             break;

  2101. #else

  2102.         case ::HOST_OPCODE_SET_VOLUME:

  2103.             setVolume(opt, true, true);

  2104.             break;

  2105.         case ::HOST_OPCODE_SET_DRYWET:

  2106.             setDryWet(opt, true, true);

  2107.             break;

  2108.         case ::HOST_OPCODE_SET_BALANCE_LEFT:

  2109.             setBalanceLeft(opt, true, true);

  2110.             break;

  2111.         case ::HOST_OPCODE_SET_BALANCE_RIGHT:

  2112.             setBalanceRight(opt, true, true);

  2113.             break;

  2114.         case ::HOST_OPCODE_SET_PANNING:

  2115.             setPanning(opt, true, true);

  2116.             break;

  2117. #endif

  2118.         case HOST_OPCODE_GET_PARAMETER_MIDI_CC:

  2119.         case HOST_OPCODE_SET_PARAMETER_MIDI_CC:

  2120.             // TODO

  2121.             break;

  2122.         case ::HOST_OPCODE_SET_PROCESS_PRECISION:

  2123.             // TODO

  2124.             break;

  2125.         case ::HOST_OPCODE_UPDATE_PARAMETER:

  2126.             break;

  2127.         case ::HOST_OPCODE_UPDATE_MIDI_PROGRAM:

  2128.             break;

  2129.         case ::HOST_OPCODE_RELOAD_PARAMETERS:

  2130.             break;

  2131.         case ::HOST_OPCODE_RELOAD_MIDI_PROGRAMS:

  2132.             break;

  2133.         case ::HOST_OPCODE_RELOAD_ALL:

  2134.             break;

  2135.         case HOST_OPCODE_UI_UNAVAILABLE:

  2136.             pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, -1, 0, 0.0f, nullptr);

  2137.             break;

  2138.         }

  2139. 

  2140.         return ret;

  2141. 

  2142.         // unused for now

  2143.         (void)index;

  2144.         (void)value;

  2145.         (void)ptr;

  2146.     }

  2147. 

  2148.     // -------------------------------------------------------------------

  2149. 

  2150. public:

  2151.     static size_t getPluginCount()

  2152.     {

  2153.         return sPluginDescriptors.count();

  2154.     }

  2155. 

  2156.     static const NativePluginDescriptor* getPluginDescriptor(const size_t index)

  2157.     {

  2158.         CARLA_ASSERT(index < sPluginDescriptors.count());

  2159. 

  2160.         if (index < sPluginDescriptors.count())

  2161.             return sPluginDescriptors.getAt(index);

  2162. 

  2163.         return nullptr;

  2164.     }

  2165. 

  2166.     static void registerPlugin(const NativePluginDescriptor* desc)

  2167.     {

  2168.         sPluginDescriptors.append(desc);

  2169.     }

  2170. 

  2171.     // -------------------------------------------------------------------

  2172. 

  2173.     bool init(const char* const name, const char* const label)

  2174.     {

  2175.         // ---------------------------------------------------------------

  2176.         // first checks

  2177. 

  2178.         if (pData->engine == nullptr)

  2179.         {

  2180.             return false;

  2181.         }

  2182. 

  2183.         if (pData->client != nullptr)

  2184.         {

  2185.             pData->engine->setLastError("Plugin client is already registered");

  2186.             return false;

  2187.         }

  2188. 

  2189.         if (label == nullptr && label[0] != '\0')

  2190.         {

  2191.             pData->engine->setLastError("null label");

  2192.             return false;

  2193.         }

  2194. 

  2195.         // ---------------------------------------------------------------

  2196.         // get descriptor that matches label

  2197. 

  2198.         for (List<const NativePluginDescriptor*>::Itenerator it = sPluginDescriptors.begin(); it.valid(); it.next())

  2199.         {

  2200.             fDescriptor = *it;

  2201. 

  2202.             CARLA_SAFE_ASSERT_BREAK(fDescriptor != nullptr);

  2203. 

  2204.             if (fDescriptor->label != nullptr && std::strcmp(fDescriptor->label, label) == 0)

  2205.                 break;

  2206. 

  2207.             fDescriptor = nullptr;

  2208.         }

  2209. 

  2210.         if (fDescriptor == nullptr)

  2211.         {

  2212.             pData->engine->setLastError("Invalid internal plugin");

  2213.             return false;

  2214.         }

  2215. 

  2216.         // ---------------------------------------------------------------

  2217.         // set icon

  2218. 

  2219.         if (std::strcmp(fDescriptor->label, "audiofile") == 0)

  2220.             pData->iconName = "file";

  2221.         else if (std::strcmp(fDescriptor->label, "midifile") == 0)

  2222.             pData->iconName = "file";

  2223.         else if (std::strcmp(fDescriptor->label, "sunvoxfile") == 0)

  2224.             pData->iconName = "file";

  2225. 

  2226.         else if (std::strcmp(fDescriptor->label, "3BandEQ") == 0)

  2227.             pData->iconName = "distrho";

  2228.         else if (std::strcmp(fDescriptor->label, "3BandSplitter") == 0)

  2229.             pData->iconName = "distrho";

  2230.         else if (std::strcmp(fDescriptor->label, "Nekobi") == 0)

  2231.             pData->iconName = "distrho";

  2232.         else if (std::strcmp(fDescriptor->label, "Notes") == 0)

  2233.             pData->iconName = "distrho";

  2234.         else if (std::strcmp(fDescriptor->label, "PingPongPan") == 0)

  2235.             pData->iconName = "distrho";

  2236.         else if (std::strcmp(fDescriptor->label, "StereoEnhancer") == 0)

  2237.             pData->iconName = "distrho";

  2238. 

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

  2240.         // get info

  2241. 

  2242.         if (name != nullptr)

  2243.             pData->name = pData->engine->getUniquePluginName(name);

  2244.         else if (fDescriptor->name != nullptr)

  2245.             pData->name = pData->engine->getUniquePluginName(fDescriptor->name);

  2246.         else

  2247.             pData->name = pData->engine->getUniquePluginName(label);

  2248. 

  2249.         {

  2250.             CARLA_ASSERT(fHost.uiName == nullptr);

  2251. 

  2252.             char uiName[pData->name.length()+6+1];

  2253.             std::strcpy(uiName, (const char*)pData->name);

  2254.             std::strcat(uiName, " (GUI)");

  2255. 

  2256.             fHost.uiName = carla_strdup(uiName);

  2257.         }

  2258. 

  2259.         // ---------------------------------------------------------------

  2260.         // register client

  2261. 

  2262.         pData->client = pData->engine->addClient(this);

  2263. 

  2264.         if (pData->client == nullptr || ! pData->client->isOk())

  2265.         {

  2266.             pData->engine->setLastError("Failed to register plugin client");

  2267.             return false;

  2268.         }

  2269. 

  2270.         // ---------------------------------------------------------------

  2271.         // initialize plugin

  2272. 

  2273.         fHandle = fDescriptor->instantiate(&fHost);

  2274. 

  2275.         if (fHandle == nullptr)

  2276.         {

  2277.             pData->engine->setLastError("Plugin failed to initialize");

  2278.             return false;

  2279.         }

  2280. 

  2281.         // ---------------------------------------------------------------

  2282.         // load plugin settings

  2283. 

  2284.         {

  2285.             const bool hasMidiProgs(fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_count(fHandle) > 0);

  2286. 

  2287.             // set default options

  2288.             pData->options = 0x0;

  2289. 

  2290.             if (hasMidiProgs && (fDescriptor->supports & ::PLUGIN_SUPPORTS_PROGRAM_CHANGES) == 0)

  2291.                 pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  2292. 

  2293.             if (getMidiInCount() > 0 || (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS) != 0)

  2294.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2295. 

  2296.             if (pData->engine->getOptions().forceStereo)

  2297.                 pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2298. 

  2299.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_CHANNEL_PRESSURE)

  2300.                 pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  2301.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_NOTE_AFTERTOUCH)

  2302.                 pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  2303.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_PITCHBEND)

  2304.                 pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  2305.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_ALL_SOUND_OFF)

  2306.                 pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  2307. 

  2308.             // load settings

  2309.             pData->idStr  = "Native/";

  2310.             pData->idStr += label;

  2311.             pData->options = pData->loadSettings(pData->options, getOptionsAvailable());

  2312. 

  2313.             // ignore settings, we need this anyway

  2314.             if (getMidiInCount() > 0 || (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS) != 0)

  2315.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2316.         }

  2317. 

  2318.         return true;

  2319.     }

  2320. 

  2321.     class ScopedInitializer

  2322.     {

  2323.     public:

  2324.         ScopedInitializer()

  2325.         {

  2326.             carla_register_all_plugins();

  2327.         }

  2328. 

  2329.         ~ScopedInitializer()

  2330.         {

  2331.             sPluginDescriptors.clear();

  2332.         }

  2333.     };

  2334. 

  2335. private:

  2336.     NativePluginHandle   fHandle;

  2337.     NativePluginHandle   fHandle2;

  2338.     NativeHostDescriptor fHost;

  2339.     const NativePluginDescriptor* fDescriptor;

  2340. 

  2341.     bool fIsProcessing;

  2342.     bool fIsUiVisible;

  2343. 

  2344.     float**         fAudioInBuffers;

  2345.     float**         fAudioOutBuffers;

  2346.     uint32_t        fMidiEventCount;

  2347.     NativeMidiEvent fMidiEvents[kPluginMaxMidiEvents*2];

  2348. 

  2349.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  2350. 

  2351.     NativePluginMidiData fMidiIn;

  2352.     NativePluginMidiData fMidiOut;

  2353. 

  2354.     NativeTimeInfo fTimeInfo;

  2355. 

  2356.     static List<const NativePluginDescriptor*> sPluginDescriptors;

  2357. 

  2358.     // -------------------------------------------------------------------

  2359. 

  2360.     #define handlePtr ((NativePlugin*)handle)

  2361. 

  2362.     static uint32_t carla_host_get_buffer_size(NativeHostHandle handle)

  2363.     {

  2364.         return handlePtr->handleGetBufferSize();

  2365.     }

  2366. 

  2367.     static double carla_host_get_sample_rate(NativeHostHandle handle)

  2368.     {

  2369.         return handlePtr->handleGetSampleRate();

  2370.     }

  2371. 

  2372.     static bool carla_host_is_offline(NativeHostHandle handle)

  2373.     {

  2374.         return handlePtr->handleIsOffline();

  2375.     }

  2376. 

  2377.     static const NativeTimeInfo* carla_host_get_time_info(NativeHostHandle handle)

  2378.     {

  2379.         return handlePtr->handleGetTimeInfo();

  2380.     }

  2381. 

  2382.     static bool carla_host_write_midi_event(NativeHostHandle handle, const NativeMidiEvent* event)

  2383.     {

  2384.         return handlePtr->handleWriteMidiEvent(event);

  2385.     }

  2386. 

  2387.     static void carla_host_ui_parameter_changed(NativeHostHandle handle, uint32_t index, float value)

  2388.     {

  2389.         handlePtr->handleUiParameterChanged(index, value);

  2390.     }

  2391. 

  2392.     static void carla_host_ui_custom_data_changed(NativeHostHandle handle, const char* key, const char* value)

  2393.     {

  2394.         handlePtr->handleUiCustomDataChanged(key, value);

  2395.     }

  2396. 

  2397.     static void carla_host_ui_closed(NativeHostHandle handle)

  2398.     {

  2399.         handlePtr->handleUiClosed();

  2400.     }

  2401. 

  2402.     static const char* carla_host_ui_open_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2403.     {

  2404.         return handlePtr->handleUiOpenFile(isDir, title, filter);

  2405.     }

  2406. 

  2407.     static const char* carla_host_ui_save_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2408.     {

  2409.         return handlePtr->handleUiSaveFile(isDir, title, filter);

  2410.     }

  2411. 

  2412.     static intptr_t carla_host_dispatcher(NativeHostHandle handle, NativeHostDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  2413.     {

  2414.         return handlePtr->handleDispatcher(opcode, index, value, ptr, opt);

  2415.     }

  2416. 

  2417.     #undef handlePtr

  2418. 

  2419.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(NativePlugin)

  2420. };

  2421. 

  2422. List<const NativePluginDescriptor*> NativePlugin::sPluginDescriptors;

  2423. 

  2424. static const NativePlugin::ScopedInitializer _si;

  2425. 

  2426. CARLA_BACKEND_END_NAMESPACE

  2427. 

  2428. void carla_register_native_plugin(const NativePluginDescriptor* desc)

  2429. {

  2430.     CARLA_BACKEND_USE_NAMESPACE

  2431.     NativePlugin::registerPlugin(desc);

  2432. }

  2433. 

  2434. #else // WANT_NATIVE

  2435. # warning Building without Internal plugin support

  2436. #endif

  2437. 

  2438. CARLA_BACKEND_START_NAMESPACE

  2439. 

  2440. // -----------------------------------------------------------------------

  2441. 

  2442. #ifdef WANT_NATIVE

  2443. size_t CarlaPlugin::getNativePluginCount()

  2444. {

  2445.     return NativePlugin::getPluginCount();

  2446. }

  2447. 

  2448. const NativePluginDescriptor* CarlaPlugin::getNativePluginDescriptor(const size_t index)

  2449. {

  2450.     return NativePlugin::getPluginDescriptor(index);

  2451. }

  2452. #endif

  2453. 

  2454. // -----------------------------------------------------------------------

  2455. 

  2456. CarlaPlugin* CarlaPlugin::newNative(const Initializer& init)

  2457. {

  2458.     carla_debug("CarlaPlugin::newNative({%p, \"%s\", \"%s\", \"%s\"})", init.engine, init.filename, init.name, init.label);

  2459. 

  2460. #ifdef WANT_NATIVE

  2461.     NativePlugin* const plugin(new NativePlugin(init.engine, init.id));

  2462. 

  2463.     if (! plugin->init(init.name, init.label))

  2464.     {

  2465.         delete plugin;

  2466.         return nullptr;

  2467.     }

  2468. 

  2469.     plugin->reload();

  2470. 

  2471.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && ! plugin->canRunInRack())

  2472.     {

  2473.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo Internal plugins, sorry!");

  2474.         delete plugin;

  2475.         return nullptr;

  2476.     }

  2477. 

  2478.     return plugin;

  2479. #else

  2480.     init.engine->setLastError("Internal plugins support not available");

  2481.     return nullptr;

  2482. #endif

  2483. }

  2484. 

  2485. CARLA_BACKEND_END_NAMESPACE