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

  386.         {

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

  388.             return;

  389.         }

  390. 

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

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

  393.     }

  394. 

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

  396.     {

  397.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  399.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  401. 

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

  403.         {

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

  405.             {

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

  407.                 return;

  408.             }

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

  410.         }

  411. 

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

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

  414.     }

  415. 

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

  417.     {

  418.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  420.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

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

  423. 

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

  425.         {

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

  427. 

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

  429.             {

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

  431.                 return;

  432.             }

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

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

  435.         }

  436. 

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

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

  439.     }

  440. 

  441.     // -------------------------------------------------------------------

  442.     // Set data (state)

  443. 

  444.     void prepareForSave() override

  445.     {

  446.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  447.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  448. 

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

  450.         {

  451.             char strBuf[STR_MAX+1];

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

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

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

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

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

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

  458. 

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

  460.         }

  461. 

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

  463.             return;

  464. 

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

  466.         {

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

  468.             std::free(data);

  469.         }

  470.     }

  471. 

  472.     // -------------------------------------------------------------------

  473.     // Set data (internal stuff)

  474. 

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

  476.     {

  477.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  478.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  480. 

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

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

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

  484. 

  485.         if (fHost.uiName != nullptr)

  486.             delete[] fHost.uiName;

  487.         fHost.uiName = carla_strdup(uiName);

  488. 

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

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

  491. 

  492.         CarlaPlugin::setName(newName);

  493.     }

  494. 

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

  496.     {

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

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

  499. 

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

  501.     }

  502. 

  503.     // -------------------------------------------------------------------

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

  505. 

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

  507.     {

  508.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  510.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  512. 

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

  514. 

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

  516. 

  517.         if (fHandle2 != nullptr)

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

  519. 

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

  521.     }

  522. 

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

  524.     {

  525.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  526.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

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

  529.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

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

  531. 

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

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

  534. 

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

  536.         {

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

  538.             {

  539.                 const ScopedSingleProcessLocker spl(this, true);

  540. 

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

  542. 

  543.                 if (fHandle2 != nullptr)

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

  545.             }

  546.         }

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

  548.         {

  549. #if 0 // TODO

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

  551. 

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

  553.             {

  554.                 uint i = 0;

  555.                 foreach (const QString& midiProg, midiProgramList)

  556.                 {

  557.                     bool ok;

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

  559. 

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

  561.                     {

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

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

  564. 

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

  566. 

  567.                         if (fHandle2 != nullptr)

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

  569. 

  570.                         fCurMidiProgs[i] = index;

  571. 

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

  573.                         {

  574.                             pData->midiprog.current = index;

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

  576.                         }

  577.                     }

  578. 

  579.                     ++i;

  580.                 }

  581.             }

  582. #endif

  583.         }

  584.         else

  585.         {

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

  587.             {

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

  589. 

  590.                 if (fHandle2 != nullptr)

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

  592.             }

  593. 

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

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

  596.         }

  597. 

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

  599.     }

  600. 

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

  602.     {

  603.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  604.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  606. 

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

  608.            return;

  609. 

  610.         if (index >= 0)

  611.         {

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

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

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

  615. 

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

  617. 

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

  619. 

  620.             if (fHandle2 != nullptr)

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

  622. 

  623.             fCurMidiProgs[channel] = index;

  624.         }

  625. 

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

  627.     }

  628. 

  629.     // -------------------------------------------------------------------

  630.     // Set gui stuff

  631. 

  632.     void showCustomUI(const bool yesNo) override

  633.     {

  634.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  635.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  636. 

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

  638.             return;

  639. 

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

  641.         fIsUiVisible = yesNo;

  642. 

  643.         if (! yesNo)

  644.             return;

  645. 

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

  647.         {

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

  649.             {

  650.                 const CustomData& cData(*it);

  651. 

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

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

  654.             }

  655.         }

  656. 

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

  658.         {

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

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

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

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

  663. 

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

  665.         }

  666. 

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

  668.         {

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

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

  671.         }

  672.     }

  673. 

  674.     void idle() override

  675.     {

  676.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  677.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  678. 

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

  680.             fDescriptor->ui_idle(fHandle);

  681. 

  682.         CarlaPlugin::idle();

  683.     }

  684. 

  685.     // -------------------------------------------------------------------

  686.     // Plugin state

  687. 

  688.     void reload() override

  689.     {

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

  691.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  692.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  694. 

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

  696. 

  697.         // Safely disable plugin for reload

  698.         const ScopedDisabler sd(this);

  699. 

  700.         if (pData->active)

  701.             deactivate();

  702. 

  703.         clearBuffers();

  704. 

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

  706. 

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

  708. 

  709.         bool forcedStereoIn, forcedStereoOut;

  710.         forcedStereoIn = forcedStereoOut = false;

  711. 

  712.         bool needsCtrlIn, needsCtrlOut;

  713.         needsCtrlIn = needsCtrlOut = false;

  714. 

  715.         aIns   = fDescriptor->audioIns;

  716.         aOuts  = fDescriptor->audioOuts;

  717.         mIns   = fDescriptor->midiIns;

  718.         mOuts  = fDescriptor->midiOuts;

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

  720. 

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

  722.         {

  723.             if (fHandle2 == nullptr)

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

  725. 

  726.             if (fHandle2 != nullptr)

  727.             {

  728.                 if (aIns == 1)

  729.                 {

  730.                     aIns = 2;

  731.                     forcedStereoIn = true;

  732.                 }

  733. 

  734.                 if (aOuts == 1)

  735.                 {

  736.                     aOuts = 2;

  737.                     forcedStereoOut = true;

  738.                 }

  739.             }

  740.         }

  741. 

  742.         if (aIns > 0)

  743.         {

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

  745.             fAudioInBuffers = new float*[aIns];

  746. 

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

  748.                 fAudioInBuffers[i] = nullptr;

  749.         }

  750. 

  751.         if (aOuts > 0)

  752.         {

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

  754.             fAudioOutBuffers = new float*[aOuts];

  755.             needsCtrlIn = true;

  756. 

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

  758.                 fAudioOutBuffers[i] = nullptr;

  759.         }

  760. 

  761.         if (mIns > 0)

  762.         {

  763.             fMidiIn.createNew(mIns);

  764.             needsCtrlIn = (mIns == 1);

  765.         }

  766. 

  767.         if (mOuts > 0)

  768.         {

  769.             fMidiOut.createNew(mOuts);

  770.             needsCtrlOut = (mOuts == 1);

  771.         }

  772. 

  773.         if (params > 0)

  774.         {

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

  776.         }

  777. 

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

  779.         CarlaString portName;

  780. 

  781.         // Audio Ins

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

  783.         {

  784.             portName.clear();

  785. 

  786.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  787.             {

  788.                 portName  = pData->name;

  789.                 portName += ":";

  790.             }

  791. 

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

  793.             {

  794.                 portName += "input_";

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

  796.             }

  797.             else

  798.                 portName += "input";

  799. 

  800.             portName.truncate(portNameSize);

  801. 

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

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

  804. 

  805.             if (forcedStereoIn)

  806.             {

  807.                 portName += "_2";

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

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

  810.                 break;

  811.             }

  812.         }

  813. 

  814.         // Audio Outs

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

  816.         {

  817.             portName.clear();

  818. 

  819.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  820.             {

  821.                 portName  = pData->name;

  822.                 portName += ":";

  823.             }

  824. 

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

  826.             {

  827.                 portName += "output_";

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

  829.             }

  830.             else

  831.                 portName += "output";

  832. 

  833.             portName.truncate(portNameSize);

  834. 

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

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

  837. 

  838.             if (forcedStereoOut)

  839.             {

  840.                 portName += "_2";

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

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

  843.                 break;

  844.             }

  845.         }

  846. 

  847.         // MIDI Input (only if multiple)

  848.         if (mIns > 1)

  849.         {

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

  851.             {

  852.                 portName.clear();

  853. 

  854.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  855.                 {

  856.                     portName  = pData->name;

  857.                     portName += ":";

  858.                 }

  859. 

  860.                 portName += "midi-in_";

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

  862.                 portName.truncate(portNameSize);

  863. 

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

  865.                 fMidiIn.indexes[j] = j;

  866.             }

  867.         }

  868. 

  869.         // MIDI Output (only if multiple)

  870.         if (mOuts > 1)

  871.         {

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

  873.             {

  874.                 portName.clear();

  875. 

  876.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  877.                 {

  878.                     portName  = pData->name;

  879.                     portName += ":";

  880.                 }

  881. 

  882.                 portName += "midi-out_";

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

  884.                 portName.truncate(portNameSize);

  885. 

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

  887.                 fMidiOut.indexes[j] = j;

  888.             }

  889.         }

  890. 

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

  892.         {

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

  894. 

  895.             CARLA_SAFE_ASSERT_CONTINUE(paramInfo != nullptr);

  896. 

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

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

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

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

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

  902. 

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

  904. 

  905.             // min value

  906.             min = paramInfo->ranges.min;

  907. 

  908.             // max value

  909.             max = paramInfo->ranges.max;

  910. 

  911.             if (min > max)

  912.                 max = min;

  913.             else if (max < min)

  914.                 min = max;

  915. 

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

  917.             {

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

  919.                 max = min + 0.1f;

  920.             }

  921. 

  922.             // default value

  923.             def = paramInfo->ranges.def;

  924. 

  925.             if (def < min)

  926.                 def = min;

  927.             else if (def > max)

  928.                 def = max;

  929. 

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

  931.             {

  932.                 min *= sampleRate;

  933.                 max *= sampleRate;

  934.                 def *= sampleRate;

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

  936.             }

  937. 

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

  939.             {

  940.                 step = max - min;

  941.                 stepSmall = step;

  942.                 stepLarge = step;

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

  944.             }

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

  946.             {

  947.                 step = 1.0f;

  948.                 stepSmall = 1.0f;

  949.                 stepLarge = 10.0f;

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

  951.             }

  952.             else

  953.             {

  954.                 float range = max - min;

  955.                 step = range/100.0f;

  956.                 stepSmall = range/1000.0f;

  957.                 stepLarge = range/10.0f;

  958.             }

  959. 

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

  961.             {

  962.                 needsCtrlOut = true;

  963.             }

  964.             else

  965.             {

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

  967.                 needsCtrlIn = true;

  968.             }

  969. 

  970.             // extra parameter hints

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

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

  973. 

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

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

  976. 

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

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

  979. 

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

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

  982. 

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

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

  985. 

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

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

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

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

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

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

  992.         }

  993. 

  994.         if (needsCtrlIn)

  995.         {

  996.             portName.clear();

  997. 

  998.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  999.             {

  1000.                 portName  = pData->name;

  1001.                 portName += ":";

  1002.             }

  1003. 

  1004.             portName += "events-in";

  1005.             portName.truncate(portNameSize);

  1006. 

  1007.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  1008.         }

  1009. 

  1010.         if (needsCtrlOut)

  1011.         {

  1012.             portName.clear();

  1013. 

  1014.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1015.             {

  1016.                 portName  = pData->name;

  1017.                 portName += ":";

  1018.             }

  1019. 

  1020.             portName += "events-out";

  1021.             portName.truncate(portNameSize);

  1022. 

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

  1024.         }

  1025. 

  1026.         if (forcedStereoIn || forcedStereoOut)

  1027.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1028.         else

  1029.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  1030. 

  1031.         // plugin hints

  1032.         pData->hints = 0x0;

  1033. 

  1034.         if (aOuts > 0 && (aIns == aOuts || aIns == 1))

  1035.             pData->hints |= PLUGIN_CAN_DRYWET;

  1036. 

  1037.         if (aOuts > 0)

  1038.             pData->hints |= PLUGIN_CAN_VOLUME;

  1039. 

  1040.         if (aOuts >= 2 && aOuts % 2 == 0)

  1041.             pData->hints |= PLUGIN_CAN_BALANCE;

  1042. 

  1043.         // native plugin hints

  1044.         if (fDescriptor->hints & ::PLUGIN_IS_RTSAFE)

  1045.             pData->hints |= PLUGIN_IS_RTSAFE;

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

  1047.             pData->hints |= PLUGIN_IS_SYNTH;

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

  1049.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

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

  1051.             pData->hints |= PLUGIN_NEEDS_SINGLE_THREAD;

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

  1053.             pData->hints |= PLUGIN_NEEDS_FIXED_BUFFERS;

  1054. 

  1055.         // extra plugin hints

  1056.         pData->extraHints = 0x0;

  1057. 

  1058.         if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0) && mIns <= 1 && mOuts <= 1)

  1059.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1060. 

  1061.         bufferSizeChanged(pData->engine->getBufferSize());

  1062.         reloadPrograms(true);

  1063. 

  1064.         if (pData->active)

  1065.             activate();

  1066. 

  1067.         carla_debug("NativePlugin::reload() - end");

  1068.     }

  1069. 

  1070.     void reloadPrograms(const bool init) override

  1071.     {

  1072.         carla_debug("NativePlugin::reloadPrograms(%s)", bool2str(init));

  1073.         uint32_t i, oldCount  = pData->midiprog.count;

  1074.         const int32_t current = pData->midiprog.current;

  1075. 

  1076.         // Delete old programs

  1077.         pData->midiprog.clear();

  1078. 

  1079.         // Query new programs

  1080.         uint32_t count = 0;

  1081.         if (fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_info != nullptr && fDescriptor->set_midi_program != nullptr)

  1082.             count = fDescriptor->get_midi_program_count(fHandle);

  1083. 

  1084.         if (count > 0)

  1085.         {

  1086.             pData->midiprog.createNew(count);

  1087. 

  1088.             // Update data

  1089.             for (i=0; i < count; ++i)

  1090.             {

  1091.                 const NativeMidiProgram* const mpDesc(fDescriptor->get_midi_program_info(fHandle, i));

  1092.                 CARLA_ASSERT(mpDesc != nullptr);

  1093.                 CARLA_ASSERT(mpDesc->name != nullptr);

  1094. 

  1095.                 pData->midiprog.data[i].bank    = mpDesc->bank;

  1096.                 pData->midiprog.data[i].program = mpDesc->program;

  1097.                 pData->midiprog.data[i].name    = carla_strdup(mpDesc->name);

  1098.             }

  1099.         }

  1100. 

  1101. #ifndef BUILD_BRIDGE

  1102.         // Update OSC Names

  1103.         if (pData->engine->isOscControlRegistered())

  1104.         {

  1105.             pData->engine->oscSend_control_set_midi_program_count(pData->id, count);

  1106. 

  1107.             for (i=0; i < count; ++i)

  1108.                 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);

  1109.         }

  1110. #endif

  1111. 

  1112.         if (init)

  1113.         {

  1114.             if (count > 0)

  1115.                 setMidiProgram(0, false, false, false);

  1116.         }

  1117.         else

  1118.         {

  1119.             // Check if current program is invalid

  1120.             bool programChanged = false;

  1121. 

  1122.             if (count == oldCount+1)

  1123.             {

  1124.                 // one midi program added, probably created by user

  1125.                 pData->midiprog.current = oldCount;

  1126.                 programChanged = true;

  1127.             }

  1128.             else if (current < 0 && count > 0)

  1129.             {

  1130.                 // programs exist now, but not before

  1131.                 pData->midiprog.current = 0;

  1132.                 programChanged = true;

  1133.             }

  1134.             else if (current >= 0 && count == 0)

  1135.             {

  1136.                 // programs existed before, but not anymore

  1137.                 pData->midiprog.current = -1;

  1138.                 programChanged = true;

  1139.             }

  1140.             else if (current >= static_cast<int32_t>(count))

  1141.             {

  1142.                 // current midi program > count

  1143.                 pData->midiprog.current = 0;

  1144.                 programChanged = true;

  1145.             }

  1146.             else

  1147.             {

  1148.                 // no change

  1149.                 pData->midiprog.current = current;

  1150.             }

  1151. 

  1152.             if (programChanged)

  1153.                 setMidiProgram(pData->midiprog.current, true, true, true);

  1154. 

  1155.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1156.         }

  1157.     }

  1158. 

  1159.     // -------------------------------------------------------------------

  1160.     // Plugin processing

  1161. 

  1162.     void activate() override

  1163.     {

  1164.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1165.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1166. 

  1167.         if (fDescriptor->activate != nullptr)

  1168.         {

  1169.             fDescriptor->activate(fHandle);

  1170. 

  1171.             if (fHandle2 != nullptr)

  1172.                 fDescriptor->activate(fHandle2);

  1173.         }

  1174.     }

  1175. 

  1176.     void deactivate() override

  1177.     {

  1178.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1179.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1180. 

  1181.         if (fDescriptor->deactivate != nullptr)

  1182.         {

  1183.             fDescriptor->deactivate(fHandle);

  1184. 

  1185.             if (fHandle2 != nullptr)

  1186.                 fDescriptor->deactivate(fHandle2);

  1187.         }

  1188.     }

  1189. 

  1190.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames) override

  1191.     {

  1192.         uint32_t i/*, k*/;

  1193. 

  1194.         // --------------------------------------------------------------------------------------------------------

  1195.         // Check if active

  1196. 

  1197.         if (! pData->active)

  1198.         {

  1199.             // disable any output sound

  1200.             for (i=0; i < pData->audioOut.count; ++i)

  1201.                 FLOAT_CLEAR(outBuffer[i], frames);

  1202. 

  1203.             return;

  1204.         }

  1205. 

  1206.         fMidiEventCount = 0;

  1207.         carla_zeroStruct<NativeMidiEvent>(fMidiEvents, kPluginMaxMidiEvents*2);

  1208. 

  1209.         // --------------------------------------------------------------------------------------------------------

  1210.         // Check if needs reset

  1211. 

  1212.         if (pData->needsReset)

  1213.         {

  1214.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1215.             {

  1216.                 for (uint8_t k=0, i=MAX_MIDI_CHANNELS; k < MAX_MIDI_CHANNELS; ++k)

  1217.                 {

  1218.                     fMidiEvents[k].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + k);

  1219.                     fMidiEvents[k].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1220.                     fMidiEvents[k].data[2] = 0;

  1221.                     fMidiEvents[k].size    = 3;

  1222. 

  1223.                     fMidiEvents[k+i].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + k);

  1224.                     fMidiEvents[k+i].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1225.                     fMidiEvents[k+i].data[2] = 0;

  1226.                     fMidiEvents[k+i].size    = 3;

  1227.                 }

  1228. 

  1229.                 fMidiEventCount = MAX_MIDI_CHANNELS*2;

  1230.             }

  1231.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1232.             {

  1233.                 for (uint8_t k=0; k < MAX_MIDI_NOTE; ++k)

  1234.                 {

  1235.                     fMidiEvents[k].data[0] = static_cast<uint8_t>(MIDI_STATUS_NOTE_OFF + pData->ctrlChannel);

  1236.                     fMidiEvents[k].data[1] = k;

  1237.                     fMidiEvents[k].data[2] = 0;

  1238.                     fMidiEvents[k].size    = 3;

  1239.                 }

  1240. 

  1241.                 fMidiEventCount = MAX_MIDI_NOTE;

  1242.             }

  1243. 

  1244.             pData->needsReset = false;

  1245.         }

  1246. 

  1247.         CARLA_PROCESS_CONTINUE_CHECK;

  1248. 

  1249.         // --------------------------------------------------------------------------------------------------------

  1250.         // Set TimeInfo

  1251. 

  1252.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1253. 

  1254.         fTimeInfo.playing = timeInfo.playing;

  1255.         fTimeInfo.frame   = timeInfo.frame;

  1256.         fTimeInfo.usecs   = timeInfo.usecs;

  1257. 

  1258.         if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1259.         {

  1260.             fTimeInfo.bbt.valid = true;

  1261. 

  1262.             fTimeInfo.bbt.bar  = timeInfo.bbt.bar;

  1263.             fTimeInfo.bbt.beat = timeInfo.bbt.beat;

  1264.             fTimeInfo.bbt.tick = timeInfo.bbt.tick;

  1265.             fTimeInfo.bbt.barStartTick = timeInfo.bbt.barStartTick;

  1266. 

  1267.             fTimeInfo.bbt.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1268.             fTimeInfo.bbt.beatType    = timeInfo.bbt.beatType;

  1269. 

  1270.             fTimeInfo.bbt.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1271.             fTimeInfo.bbt.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1272.         }

  1273.         else

  1274.             fTimeInfo.bbt.valid = false;

  1275. 

  1276.         CARLA_PROCESS_CONTINUE_CHECK;

  1277. 

  1278.         // --------------------------------------------------------------------------------------------------------

  1279.         // Event Input and Processing

  1280. 

  1281.         if (pData->event.portIn != nullptr)

  1282.         {

  1283.             // ----------------------------------------------------------------------------------------------------

  1284.             // MIDI Input (External)

  1285. 

  1286.             if (pData->extNotes.mutex.tryLock())

  1287.             {

  1288.                 while (fMidiEventCount < kPluginMaxMidiEvents*2 && ! pData->extNotes.data.isEmpty())

  1289.                 {

  1290.                     const ExternalMidiNote& note(pData->extNotes.data.getFirst(true));

  1291. 

  1292.                     CARLA_ASSERT(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1293. 

  1294.                     fMidiEvents[fMidiEventCount].data[0] = note.channel + (note.velo > 0) ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF;

  1295.                     fMidiEvents[fMidiEventCount].data[1] = note.note;

  1296.                     fMidiEvents[fMidiEventCount].data[2] = note.velo;

  1297.                     fMidiEvents[fMidiEventCount].size    = 3;

  1298. 

  1299.                     fMidiEventCount += 1;

  1300.                 }

  1301. 

  1302.                 pData->extNotes.mutex.unlock();

  1303. 

  1304.             } // End of MIDI Input (External)

  1305. 

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

  1307.             // Event Input (System)

  1308. 

  1309.             bool allNotesOffSent = false;

  1310.             bool sampleAccurate  = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1311. 

  1312.             uint32_t time, nEvents = pData->event.portIn->getEventCount();

  1313.             uint32_t startTime  = 0;

  1314.             uint32_t timeOffset = 0;

  1315.             uint32_t nextBankId = 0;

  1316. 

  1317.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1318.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1319. 

  1320.             for (i=0; i < nEvents; ++i)

  1321.             {

  1322.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1323. 

  1324.                 time = event.time;

  1325. 

  1326.                 if (time >= frames)

  1327.                     continue;

  1328. 

  1329.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  1330. 

  1331.                 if (time > timeOffset && sampleAccurate)

  1332.                 {

  1333.                     if (processSingle(inBuffer, outBuffer, time - timeOffset, timeOffset))

  1334.                     {

  1335.                         startTime  = 0;

  1336.                         timeOffset = time;

  1337. 

  1338.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1339.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1340.                         else

  1341.                             nextBankId = 0;

  1342. 

  1343.                         if (fMidiEventCount > 0)

  1344.                         {

  1345.                             carla_zeroStruct<NativeMidiEvent>(fMidiEvents, fMidiEventCount);

  1346.                             fMidiEventCount = 0;

  1347.                         }

  1348.                     }

  1349.                     else

  1350.                         startTime += timeOffset;

  1351.                 }

  1352. 

  1353.                 // Control change

  1354.                 switch (event.type)

  1355.                 {

  1356.                 case kEngineEventTypeNull:

  1357.                     break;

  1358. 

  1359.                 case kEngineEventTypeControl:

  1360.                 {

  1361.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1362. 

  1363.                     switch (ctrlEvent.type)

  1364.                     {

  1365.                     case kEngineControlEventTypeNull:

  1366.                         break;

  1367. 

  1368.                     case kEngineControlEventTypeParameter:

  1369.                     {

  1370. #ifndef BUILD_BRIDGE

  1371.                         // Control backend stuff

  1372.                         if (event.channel == pData->ctrlChannel)

  1373.                         {

  1374.                             float value;

  1375. 

  1376.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) > 0)

  1377.                             {

  1378.                                 value = ctrlEvent.value;

  1379.                                 setDryWet(value, false, false);

  1380.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1381.                             }

  1382. 

  1383.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) > 0)

  1384.                             {

  1385.                                 value = ctrlEvent.value*127.0f/100.0f;

  1386.                                 setVolume(value, false, false);

  1387.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1388.                             }

  1389. 

  1390.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) > 0)

  1391.                             {

  1392.                                 float left, right;

  1393.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1394. 

  1395.                                 if (value < 0.0f)

  1396.                                 {

  1397.                                     left  = -1.0f;

  1398.                                     right = (value*2.0f)+1.0f;

  1399.                                 }

  1400.                                 else if (value > 0.0f)

  1401.                                 {

  1402.                                     left  = (value*2.0f)-1.0f;

  1403.                                     right = 1.0f;

  1404.                                 }

  1405.                                 else

  1406.                                 {

  1407.                                     left  = -1.0f;

  1408.                                     right = 1.0f;

  1409.                                 }

  1410. 

  1411.                                 setBalanceLeft(left, false, false);

  1412.                                 setBalanceRight(right, false, false);

  1413.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1414.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1415.                             }

  1416.                         }

  1417. #endif

  1418. 

  1419.                         // Control plugin parameters

  1420.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1421.                         {

  1422.                             if (pData->param.data[k].midiChannel != event.channel)

  1423.                                 continue;

  1424.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1425.                                 continue;

  1426.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1427.                                 continue;

  1428.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1429.                                 continue;

  1430. 

  1431.                             float value;

  1432. 

  1433.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1434.                             {

  1435.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1436.                             }

  1437.                             else

  1438.                             {

  1439.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1440. 

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

  1442.                                     value = std::rint(value);

  1443.                             }

  1444. 

  1445.                             setParameterValue(k, value, false, false, false);

  1446.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1447.                         }

  1448. 

  1449.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param <= 0x5F)

  1450.                         {

  1451.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1452.                                 continue;

  1453. 

  1454.                             fMidiEvents[fMidiEventCount].port    = 0;

  1455.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1456.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1457.                             fMidiEvents[fMidiEventCount].data[1] = static_cast<uint8_t>(ctrlEvent.param);

  1458.                             fMidiEvents[fMidiEventCount].data[2] = uint8_t(ctrlEvent.value*127.0f);

  1459.                             fMidiEvents[fMidiEventCount].size    = 3;

  1460. 

  1461.                             fMidiEventCount += 1;

  1462.                         }

  1463. 

  1464.                         break;

  1465.                     }

  1466. 

  1467.                     case kEngineControlEventTypeMidiBank:

  1468.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1469.                             nextBankId = ctrlEvent.param;

  1470.                         break;

  1471. 

  1472.                     case kEngineControlEventTypeMidiProgram:

  1473.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1474.                         {

  1475.                             const uint32_t nextProgramId(ctrlEvent.param);

  1476. 

  1477.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1478.                             {

  1479.                                 if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1480.                                 {

  1481.                                     fDescriptor->set_midi_program(fHandle, event.channel, nextBankId, nextProgramId);

  1482. 

  1483.                                     if (fHandle2 != nullptr)

  1484.                                         fDescriptor->set_midi_program(fHandle2, event.channel, nextBankId, nextProgramId);

  1485. 

  1486.                                     fCurMidiProgs[event.channel] = k;

  1487. 

  1488.                                     if (event.channel == pData->ctrlChannel)

  1489.                                         pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0f);

  1490. 

  1491.                                     break;

  1492.                                 }

  1493.                             }

  1494.                         }

  1495.                         break;

  1496. 

  1497.                     case kEngineControlEventTypeAllSoundOff:

  1498.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1499.                         {

  1500.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1501.                                 continue;

  1502. 

  1503.                             fMidiEvents[fMidiEventCount].port    = 0;

  1504.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1505.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1506.                             fMidiEvents[fMidiEventCount].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1507.                             fMidiEvents[fMidiEventCount].data[2] = 0;

  1508.                             fMidiEvents[fMidiEventCount].size    = 3;

  1509. 

  1510.                             fMidiEventCount += 1;

  1511.                         }

  1512.                         break;

  1513. 

  1514.                     case kEngineControlEventTypeAllNotesOff:

  1515.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1516.                         {

  1517.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1518.                             {

  1519.                                 allNotesOffSent = true;

  1520.                                 sendMidiAllNotesOffToCallback();

  1521.                             }

  1522. 

  1523.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1524.                                 continue;

  1525. 

  1526.                             fMidiEvents[fMidiEventCount].port    = 0;

  1527.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1528.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1529.                             fMidiEvents[fMidiEventCount].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1530.                             fMidiEvents[fMidiEventCount].data[2] = 0;

  1531.                             fMidiEvents[fMidiEventCount].size    = 3;

  1532. 

  1533.                             fMidiEventCount += 1;

  1534.                         }

  1535.                         break;

  1536.                     }

  1537. 

  1538.                     break;

  1539.                 }

  1540. 

  1541.                 case kEngineEventTypeMidi:

  1542.                 {

  1543.                     if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1544.                         continue;

  1545. 

  1546.                     const EngineMidiEvent& midiEvent(event.midi);

  1547. 

  1548.                     uint8_t status  = MIDI_GET_STATUS_FROM_DATA(midiEvent.data);

  1549.                     uint8_t channel = event.channel;

  1550. 

  1551.                     if (MIDI_IS_STATUS_CHANNEL_PRESSURE(status) && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1552.                         continue;

  1553.                     if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1554.                         continue;

  1555.                     if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1556.                         continue;

  1557.                     if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1558.                         continue;

  1559. 

  1560.                     // Fix bad note-off

  1561.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1562.                         status = MIDI_STATUS_NOTE_OFF;

  1563. 

  1564.                     fMidiEvents[fMidiEventCount].port = 0;

  1565.                     fMidiEvents[fMidiEventCount].time = sampleAccurate ? startTime : time;

  1566.                     fMidiEvents[fMidiEventCount].size = midiEvent.size;

  1567. 

  1568.                     fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(status + channel);

  1569.                     fMidiEvents[fMidiEventCount].data[1] = midiEvent.data[1];

  1570.                     fMidiEvents[fMidiEventCount].data[2] = midiEvent.data[2];

  1571.                     fMidiEvents[fMidiEventCount].data[3] = midiEvent.data[3];

  1572. 

  1573.                     fMidiEventCount += 1;

  1574. 

  1575.                     if (status == MIDI_STATUS_NOTE_ON)

  1576.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, channel, midiEvent.data[1], midiEvent.data[2]);

  1577.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1578.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, channel, midiEvent.data[1], 0.0f);

  1579. 

  1580.                     break;

  1581.                 }

  1582.                 }

  1583.             }

  1584. 

  1585.             pData->postRtEvents.trySplice();

  1586. 

  1587.             if (frames > timeOffset)

  1588.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset);

  1589. 

  1590.         } // End of Event Input and Processing

  1591. 

  1592.         // --------------------------------------------------------------------------------------------------------

  1593.         // Plugin processing (no events)

  1594. 

  1595.         else

  1596.         {

  1597.             processSingle(inBuffer, outBuffer, frames, 0);

  1598. 

  1599.         } // End of Plugin processing (no events)

  1600. 

  1601.         CARLA_PROCESS_CONTINUE_CHECK;

  1602. 

  1603.         // --------------------------------------------------------------------------------------------------------

  1604.         // Control and MIDI Output

  1605. 

  1606.         if (fMidiOut.count > 0 || pData->event.portOut != nullptr)

  1607.         {

  1608.             float value, curValue;

  1609. 

  1610.             for (uint32_t k=0; k < pData->param.count; ++k)

  1611.             {

  1612.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1613.                     continue;

  1614. 

  1615.                 curValue = fDescriptor->get_parameter_value(fHandle, k);

  1616.                 pData->param.ranges[k].fixValue(curValue);

  1617. 

  1618.                 if (pData->param.data[k].midiCC > 0)

  1619.                 {

  1620.                     value = pData->param.ranges[k].getNormalizedValue(curValue);

  1621.                     pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, pData->param.data[k].midiCC, value);

  1622.                 }

  1623.             }

  1624. 

  1625.             // reverse lookup MIDI events

  1626.             for (uint32_t k = (kPluginMaxMidiEvents*2)-1; k >= fMidiEventCount; --k)

  1627.             {

  1628.                 if (fMidiEvents[k].data[0] == 0)

  1629.                     break;

  1630. 

  1631.                 const uint8_t channel = MIDI_GET_CHANNEL_FROM_DATA(fMidiEvents[k].data);

  1632.                 const uint8_t port    = fMidiEvents[k].port;

  1633. 

  1634.                 if (pData->event.portOut != nullptr)

  1635.                     pData->event.portOut->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].size, fMidiEvents[k].data);

  1636.                 else if (port < fMidiOut.count)

  1637.                     fMidiOut.ports[port]->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].size, fMidiEvents[k].data);

  1638.             }

  1639. 

  1640.         } // End of Control and MIDI Output

  1641.     }

  1642. 

  1643.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1644.     {

  1645.         CARLA_ASSERT(frames > 0);

  1646. 

  1647.         if (frames == 0)

  1648.             return false;

  1649. 

  1650.         if (pData->audioIn.count > 0)

  1651.         {

  1652.             CARLA_ASSERT(inBuffer != nullptr);

  1653.             if (inBuffer == nullptr)

  1654.                 return false;

  1655.         }

  1656.         if (pData->audioOut.count > 0)

  1657.         {

  1658.             CARLA_ASSERT(outBuffer != nullptr);

  1659.             if (outBuffer == nullptr)

  1660.                 return false;

  1661.         }

  1662. 

  1663.         uint32_t i, k;

  1664. 

  1665.         // --------------------------------------------------------------------------------------------------------

  1666.         // Try lock, silence otherwise

  1667. 

  1668.         if (pData->engine->isOffline())

  1669.         {

  1670.             pData->singleMutex.lock();

  1671.         }

  1672.         else if (! pData->singleMutex.tryLock())

  1673.         {

  1674.             for (i=0; i < pData->audioOut.count; ++i)

  1675.             {

  1676.                 for (k=0; k < frames; ++k)

  1677.                     outBuffer[i][k+timeOffset] = 0.0f;

  1678.             }

  1679. 

  1680.             return false;

  1681.         }

  1682. 

  1683.         // --------------------------------------------------------------------------------------------------------

  1684.         // Reset audio buffers

  1685. 

  1686.         for (i=0; i < pData->audioIn.count; ++i)

  1687.         {

  1688. #ifdef USE_JUCE

  1689.             FloatVectorOperations::copy(fAudioInBuffers[i], inBuffer[i]+timeOffset, frames);

  1690. #else

  1691. #endif

  1692.         }

  1693. 

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

  1695.         {

  1696. #ifdef USE_JUCE

  1697.             FloatVectorOperations::clear(fAudioOutBuffers[i], frames);

  1698. #else

  1699. #endif

  1700.         }

  1701. 

  1702.         // --------------------------------------------------------------------------------------------------------

  1703.         // Run plugin

  1704. 

  1705.         fIsProcessing = true;

  1706. 

  1707.         if (fHandle2 == nullptr)

  1708.         {

  1709.             fDescriptor->process(fHandle, fAudioInBuffers, fAudioOutBuffers, frames, fMidiEvents, fMidiEventCount);

  1710.         }

  1711.         else

  1712.         {

  1713.             fDescriptor->process(fHandle,

  1714.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[0] : nullptr,

  1715.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[0] : nullptr,

  1716.                                  frames, fMidiEvents, fMidiEventCount);

  1717. 

  1718.             fDescriptor->process(fHandle2,

  1719.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[1] : nullptr,

  1720.                                  (pData->audioOut.count > 0) ? &fAudioOutBuffers[1] : nullptr,

  1721.                                  frames, fMidiEvents, fMidiEventCount);

  1722.         }

  1723. 

  1724.         fIsProcessing = false;

  1725.         fTimeInfo.frame += frames;

  1726. 

  1727. #ifndef BUILD_BRIDGE

  1728.         // --------------------------------------------------------------------------------------------------------

  1729.         // Post-processing (dry/wet, volume and balance)

  1730. 

  1731.         {

  1732.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && pData->postProc.dryWet != 1.0f;

  1733.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && (pData->postProc.balanceLeft != -1.0f || pData->postProc.balanceRight != 1.0f);

  1734. 

  1735.             bool isPair;

  1736.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1737. 

  1738.             for (i=0; i < pData->audioOut.count; ++i)

  1739.             {

  1740.                 // Dry/Wet

  1741.                 if (doDryWet)

  1742.                 {

  1743.                     for (k=0; k < frames; ++k)

  1744.                     {

  1745.                         bufValue = fAudioInBuffers[(pData->audioIn.count == 1) ? 0 : i][k];

  1746.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1747.                     }

  1748.                 }

  1749. 

  1750.                 // Balance

  1751.                 if (doBalance)

  1752.                 {

  1753.                     isPair = (i % 2 == 0);

  1754. 

  1755.                     if (isPair)

  1756.                     {

  1757.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1758. #ifdef USE_JUCE

  1759.                         FloatVectorOperations::copy(oldBufLeft, fAudioOutBuffers[i], frames);

  1760. #else

  1761. #endif

  1762.                     }

  1763. 

  1764.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1765.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1766. 

  1767.                     for (k=0; k < frames; ++k)

  1768.                     {

  1769.                         if (isPair)

  1770.                         {

  1771.                             // left

  1772.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1773.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1774.                         }

  1775.                         else

  1776.                         {

  1777.                             // right

  1778.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1779.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1780.                         }

  1781.                     }

  1782.                 }

  1783. 

  1784.                 // Volume (and buffer copy)

  1785.                 {

  1786.                     for (k=0; k < frames; ++k)

  1787.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1788.                 }

  1789.             }

  1790. 

  1791.         } // End of Post-processing

  1792. #else

  1793.         for (i=0; i < pData->audioOut.count; ++i)

  1794.         {

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

  1796.                 outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1797.         }

  1798. #endif

  1799. 

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

  1801. 

  1802.         pData->singleMutex.unlock();

  1803.         return true;

  1804.     }

  1805. 

  1806.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1807.     {

  1808.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1809.         carla_debug("NativePlugin::bufferSizeChanged(%i)", newBufferSize);

  1810. 

  1811.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1812.         {

  1813.             if (fAudioInBuffers[i] != nullptr)

  1814.                 delete[] fAudioInBuffers[i];

  1815.             fAudioInBuffers[i] = new float[newBufferSize];

  1816.         }

  1817. 

  1818.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1819.         {

  1820.             if (fAudioOutBuffers[i] != nullptr)

  1821.                 delete[] fAudioOutBuffers[i];

  1822.             fAudioOutBuffers[i] = new float[newBufferSize];

  1823.         }

  1824. 

  1825.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1826.         {

  1827.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, newBufferSize, nullptr, 0.0f);

  1828. 

  1829.             if (fHandle2 != nullptr)

  1830.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, newBufferSize, nullptr, 0.0f);

  1831.         }

  1832.     }

  1833. 

  1834.     void sampleRateChanged(const double newSampleRate) override

  1835.     {

  1836.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  1837.         carla_debug("NativePlugin::sampleRateChanged(%g)", newSampleRate);

  1838. 

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

  1840.         {

  1841.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  1842. 

  1843.             if (fHandle2 != nullptr)

  1844.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  1845.         }

  1846.     }

  1847. 

  1848.     void offlineModeChanged(const bool isOffline) override

  1849.     {

  1850.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1851.         {

  1852.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  1853. 

  1854.             if (fHandle2 != nullptr)

  1855.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  1856.         }

  1857.     }

  1858. 

  1859.     // -------------------------------------------------------------------

  1860.     // Plugin buffers

  1861. 

  1862.     void initBuffers() override

  1863.     {

  1864.         fMidiIn.initBuffers();

  1865.         fMidiOut.initBuffers();

  1866. 

  1867.         CarlaPlugin::initBuffers();

  1868.     }

  1869. 

  1870.     void clearBuffers() override

  1871.     {

  1872.         carla_debug("NativePlugin::clearBuffers() - start");

  1873. 

  1874.         if (fAudioInBuffers != nullptr)

  1875.         {

  1876.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1877.             {

  1878.                 if (fAudioInBuffers[i] != nullptr)

  1879.                 {

  1880.                     delete[] fAudioInBuffers[i];

  1881.                     fAudioInBuffers[i] = nullptr;

  1882.                 }

  1883.             }

  1884. 

  1885.             delete[] fAudioInBuffers;

  1886.             fAudioInBuffers = nullptr;

  1887.         }

  1888. 

  1889.         if (fAudioOutBuffers != nullptr)

  1890.         {

  1891.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1892.             {

  1893.                 if (fAudioOutBuffers[i] != nullptr)

  1894.                 {

  1895.                     delete[] fAudioOutBuffers[i];

  1896.                     fAudioOutBuffers[i] = nullptr;

  1897.                 }

  1898.             }

  1899. 

  1900.             delete[] fAudioOutBuffers;

  1901.             fAudioOutBuffers = nullptr;

  1902.         }

  1903. 

  1904.         fMidiIn.clear();

  1905.         fMidiOut.clear();

  1906. 

  1907.         CarlaPlugin::clearBuffers();

  1908. 

  1909.         carla_debug("NativePlugin::clearBuffers() - end");

  1910.     }

  1911. 

  1912.     // -------------------------------------------------------------------

  1913.     // Post-poned UI Stuff

  1914. 

  1915.     void uiParameterChange(const uint32_t index, const float value) override

  1916.     {

  1917.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1918.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1919.         CARLA_ASSERT(index < pData->param.count);

  1920. 

  1921.         if (! fIsUiVisible)

  1922.             return;

  1923.         if (fDescriptor == nullptr || fHandle == nullptr)

  1924.             return;

  1925.         if (index >= pData->param.count)

  1926.             return;

  1927. 

  1928.         if (fDescriptor->ui_set_parameter_value != nullptr)

  1929.             fDescriptor->ui_set_parameter_value(fHandle, index, value);

  1930.     }

  1931. 

  1932.     void uiMidiProgramChange(const uint32_t index) override

  1933.     {

  1934.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1935.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1936.         CARLA_ASSERT(index < pData->midiprog.count);

  1937. 

  1938.         if (! fIsUiVisible)

  1939.             return;

  1940.         if (fDescriptor == nullptr || fHandle == nullptr)

  1941.             return;

  1942.         if (index >= pData->midiprog.count)

  1943.             return;

  1944. 

  1945.         if (fDescriptor->ui_set_midi_program != nullptr) // TODO

  1946.             fDescriptor->ui_set_midi_program(fHandle, 0, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  1947.     }

  1948. 

  1949.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) override

  1950.     {

  1951.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1952.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1953.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1954.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1955.         CARLA_ASSERT(velo > 0 && velo < MAX_MIDI_VALUE);

  1956. 

  1957.         if (! fIsUiVisible)

  1958.             return;

  1959.         if (fDescriptor == nullptr || fHandle == nullptr)

  1960.             return;

  1961.         if (channel >= MAX_MIDI_CHANNELS)

  1962.             return;

  1963.         if (note >= MAX_MIDI_NOTE)

  1964.             return;

  1965.         if (velo >= MAX_MIDI_VALUE)

  1966.             return;

  1967. 

  1968.         // TODO

  1969.     }

  1970. 

  1971.     void uiNoteOff(const uint8_t channel, const uint8_t note) override

  1972.     {

  1973.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1974.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1975.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1976.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1977. 

  1978.         if (! fIsUiVisible)

  1979.             return;

  1980.         if (fDescriptor == nullptr || fHandle == nullptr)

  1981.             return;

  1982.         if (channel >= MAX_MIDI_CHANNELS)

  1983.             return;

  1984.         if (note >= MAX_MIDI_NOTE)

  1985.             return;

  1986. 

  1987.         // TODO

  1988.     }

  1989. 

  1990.     // -------------------------------------------------------------------

  1991. 

  1992. protected:

  1993.     uint32_t handleGetBufferSize() const

  1994.     {

  1995.         return pData->engine->getBufferSize();

  1996.     }

  1997. 

  1998.     double handleGetSampleRate() const

  1999.     {

  2000.         return pData->engine->getSampleRate();

  2001.     }

  2002. 

  2003.     bool handleIsOffline() const

  2004.     {

  2005.         return pData->engine->isOffline();

  2006.     }

  2007. 

  2008.     const NativeTimeInfo* handleGetTimeInfo() const

  2009.     {

  2010.         CARLA_SAFE_ASSERT_RETURN(fIsProcessing, nullptr);

  2011. 

  2012.         return &fTimeInfo;

  2013.     }

  2014. 

  2015.     bool handleWriteMidiEvent(const NativeMidiEvent* const event)

  2016.     {

  2017.         CARLA_ASSERT(pData->enabled);

  2018.         CARLA_ASSERT(fIsProcessing);

  2019.         CARLA_ASSERT(fMidiOut.count > 0 || pData->event.portOut != nullptr);

  2020.         CARLA_ASSERT(event != nullptr);

  2021.         CARLA_ASSERT(event->data[0] != 0);

  2022. 

  2023.         if (! pData->enabled)

  2024.             return false;

  2025.         if (fMidiOut.count == 0)

  2026.             return false;

  2027.         if (event == nullptr)

  2028.             return false;

  2029.         if (event->data[0] == 0)

  2030.             return false;

  2031.         if (! fIsProcessing)

  2032.         {

  2033.             carla_stderr2("NativePlugin::handleWriteMidiEvent(%p) - received MIDI out event outside audio thread, ignoring", event);

  2034.             return false;

  2035.         }

  2036. 

  2037.         // reverse-find first free event, and put it there

  2038.         for (uint32_t i=(kPluginMaxMidiEvents*2)-1; i > fMidiEventCount; --i)

  2039.         {

  2040.             if (fMidiEvents[i].data[0] == 0)

  2041.             {

  2042.                 std::memcpy(&fMidiEvents[i], event, sizeof(NativeMidiEvent));

  2043.                 return true;

  2044.             }

  2045.         }

  2046. 

  2047.         return false;

  2048.     }

  2049. 

  2050.     void handleUiParameterChanged(const uint32_t index, const float value)

  2051.     {

  2052.         setParameterValue(index, value, false, true, true);

  2053.     }

  2054. 

  2055.     void handleUiCustomDataChanged(const char* const key, const char* const value)

  2056.     {

  2057.         setCustomData(CUSTOM_DATA_TYPE_STRING, key, value, false);

  2058.     }

  2059. 

  2060.     void handleUiClosed()

  2061.     {

  2062.         pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2063.         fIsUiVisible = false;

  2064.     }

  2065. 

  2066.     const char* handleUiOpenFile(const bool isDir, const char* const title, const char* const filter)

  2067.     {

  2068.         return carla_file_callback(FILE_CALLBACK_OPEN, isDir, title, filter);

  2069.     }

  2070. 

  2071.     const char* handleUiSaveFile(const bool isDir, const char* const title, const char* const filter)

  2072.     {

  2073.         return carla_file_callback(FILE_CALLBACK_SAVE, isDir, title, filter);

  2074.     }

  2075. 

  2076.     intptr_t handleDispatcher(const NativeHostDispatcherOpcode opcode, const int32_t index, const intptr_t value, void* const ptr, const float opt)

  2077.     {

  2078.         carla_debug("NativePlugin::handleDispatcher(%i, %i, " P_INTPTR ", %p, %f)", opcode, index, value, ptr, opt);

  2079. 

  2080.         intptr_t ret = 0;

  2081. 

  2082.         switch (opcode)

  2083.         {

  2084.         case ::HOST_OPCODE_NULL:

  2085.             break;

  2086. #ifdef BUILD_BRIDGE

  2087.         case ::HOST_OPCODE_SET_VOLUME:

  2088.         case ::HOST_OPCODE_SET_DRYWET:

  2089.         case ::HOST_OPCODE_SET_BALANCE_LEFT:

  2090.         case ::HOST_OPCODE_SET_BALANCE_RIGHT:

  2091.         case ::HOST_OPCODE_SET_PANNING:

  2092.             break;

  2093. #else

  2094.         case ::HOST_OPCODE_SET_VOLUME:

  2095.             setVolume(opt, true, true);

  2096.             break;

  2097.         case ::HOST_OPCODE_SET_DRYWET:

  2098.             setDryWet(opt, true, true);

  2099.             break;

  2100.         case ::HOST_OPCODE_SET_BALANCE_LEFT:

  2101.             setBalanceLeft(opt, true, true);

  2102.             break;

  2103.         case ::HOST_OPCODE_SET_BALANCE_RIGHT:

  2104.             setBalanceRight(opt, true, true);

  2105.             break;

  2106.         case ::HOST_OPCODE_SET_PANNING:

  2107.             setPanning(opt, true, true);

  2108.             break;

  2109. #endif

  2110.         case HOST_OPCODE_GET_PARAMETER_MIDI_CC:

  2111.         case HOST_OPCODE_SET_PARAMETER_MIDI_CC:

  2112.             // TODO

  2113.             break;

  2114.         case ::HOST_OPCODE_SET_PROCESS_PRECISION:

  2115.             // TODO

  2116.             break;

  2117.         case ::HOST_OPCODE_UPDATE_PARAMETER:

  2118.             break;

  2119.         case ::HOST_OPCODE_UPDATE_MIDI_PROGRAM:

  2120.             break;

  2121.         case ::HOST_OPCODE_RELOAD_PARAMETERS:

  2122.             break;

  2123.         case ::HOST_OPCODE_RELOAD_MIDI_PROGRAMS:

  2124.             break;

  2125.         case ::HOST_OPCODE_RELOAD_ALL:

  2126.             break;

  2127.         case HOST_OPCODE_UI_UNAVAILABLE:

  2128.             pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, -1, 0, 0.0f, nullptr);

  2129.             break;

  2130.         }

  2131. 

  2132.         return ret;

  2133. 

  2134.         // unused for now

  2135.         (void)index;

  2136.         (void)value;

  2137.         (void)ptr;

  2138.     }

  2139. 

  2140.     // -------------------------------------------------------------------

  2141. 

  2142. public:

  2143.     static size_t getPluginCount()

  2144.     {

  2145.         return sPluginDescriptors.count();

  2146.     }

  2147. 

  2148.     static const NativePluginDescriptor* getPluginDescriptor(const size_t index)

  2149.     {

  2150.         CARLA_ASSERT(index < sPluginDescriptors.count());

  2151. 

  2152.         if (index < sPluginDescriptors.count())

  2153.             return sPluginDescriptors.getAt(index);

  2154. 

  2155.         return nullptr;

  2156.     }

  2157. 

  2158.     static void registerPlugin(const NativePluginDescriptor* desc)

  2159.     {

  2160.         sPluginDescriptors.append(desc);

  2161.     }

  2162. 

  2163.     // -------------------------------------------------------------------

  2164. 

  2165.     bool init(const char* const name, const char* const label)

  2166.     {

  2167.         // ---------------------------------------------------------------

  2168.         // first checks

  2169. 

  2170.         if (pData->engine == nullptr)

  2171.         {

  2172.             return false;

  2173.         }

  2174. 

  2175.         if (pData->client != nullptr)

  2176.         {

  2177.             pData->engine->setLastError("Plugin client is already registered");

  2178.             return false;

  2179.         }

  2180. 

  2181.         if (label == nullptr && label[0] != '\0')

  2182.         {

  2183.             pData->engine->setLastError("null label");

  2184.             return false;

  2185.         }

  2186. 

  2187.         // ---------------------------------------------------------------

  2188.         // get descriptor that matches label

  2189. 

  2190.         for (List<const NativePluginDescriptor*>::Itenerator it = sPluginDescriptors.begin(); it.valid(); it.next())

  2191.         {

  2192.             fDescriptor = *it;

  2193. 

  2194.             CARLA_SAFE_ASSERT_BREAK(fDescriptor != nullptr);

  2195. 

  2196.             if (fDescriptor->label != nullptr && std::strcmp(fDescriptor->label, label) == 0)

  2197.                 break;

  2198. 

  2199.             fDescriptor = nullptr;

  2200.         }

  2201. 

  2202.         if (fDescriptor == nullptr)

  2203.         {

  2204.             pData->engine->setLastError("Invalid internal plugin");

  2205.             return false;

  2206.         }

  2207. 

  2208.         // ---------------------------------------------------------------

  2209.         // set icon

  2210. 

  2211.         if (std::strcmp(fDescriptor->label, "audiofile") == 0)

  2212.             pData->iconName = "file";

  2213.         else if (std::strcmp(fDescriptor->label, "midifile") == 0)

  2214.             pData->iconName = "file";

  2215.         else if (std::strcmp(fDescriptor->label, "sunvoxfile") == 0)

  2216.             pData->iconName = "file";

  2217. 

  2218.         else if (std::strcmp(fDescriptor->label, "3BandEQ") == 0)

  2219.             pData->iconName = "distrho";

  2220.         else if (std::strcmp(fDescriptor->label, "3BandSplitter") == 0)

  2221.             pData->iconName = "distrho";

  2222.         else if (std::strcmp(fDescriptor->label, "Nekobi") == 0)

  2223.             pData->iconName = "distrho";

  2224.         else if (std::strcmp(fDescriptor->label, "Notes") == 0)

  2225.             pData->iconName = "distrho";

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

  2227.             pData->iconName = "distrho";

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

  2229.             pData->iconName = "distrho";

  2230. 

  2231.         // ---------------------------------------------------------------

  2232.         // get info

  2233. 

  2234.         if (name != nullptr)

  2235.             pData->name = pData->engine->getUniquePluginName(name);

  2236.         else if (fDescriptor->name != nullptr)

  2237.             pData->name = pData->engine->getUniquePluginName(fDescriptor->name);

  2238.         else

  2239.             pData->name = pData->engine->getUniquePluginName(label);

  2240. 

  2241.         {

  2242.             CARLA_ASSERT(fHost.uiName == nullptr);

  2243. 

  2244.             char uiName[std::strlen(pData->name)+6+1];

  2245.             std::strcpy(uiName, pData->name);

  2246.             std::strcat(uiName, " (GUI)");

  2247. 

  2248.             fHost.uiName = carla_strdup(uiName);

  2249.         }

  2250. 

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

  2252.         // register client

  2253. 

  2254.         pData->client = pData->engine->addClient(this);

  2255. 

  2256.         if (pData->client == nullptr || ! pData->client->isOk())

  2257.         {

  2258.             pData->engine->setLastError("Failed to register plugin client");

  2259.             return false;

  2260.         }

  2261. 

  2262.         // ---------------------------------------------------------------

  2263.         // initialize plugin

  2264. 

  2265.         fHandle = fDescriptor->instantiate(&fHost);

  2266. 

  2267.         if (fHandle == nullptr)

  2268.         {

  2269.             pData->engine->setLastError("Plugin failed to initialize");

  2270.             return false;

  2271.         }

  2272. 

  2273.         // ---------------------------------------------------------------

  2274.         // load plugin settings

  2275. 

  2276.         {

  2277.             const bool hasMidiProgs(fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_count(fHandle) > 0);

  2278. 

  2279.             // set default options

  2280.             pData->options = 0x0;

  2281. 

  2282.             if (hasMidiProgs && (fDescriptor->supports & ::PLUGIN_SUPPORTS_PROGRAM_CHANGES) == 0)

  2283.                 pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  2284. 

  2285.             if (getMidiInCount() > 0 || (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS) != 0)

  2286.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2287. 

  2288.             if (pData->engine->getOptions().forceStereo)

  2289.                 pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2290. 

  2291.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_CHANNEL_PRESSURE)

  2292.                 pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  2293.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_NOTE_AFTERTOUCH)

  2294.                 pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  2295.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_PITCHBEND)

  2296.                 pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  2297.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_ALL_SOUND_OFF)

  2298.                 pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  2299. 

  2300.             // load settings TODO

  2301.             pData->identifier = "Native/";

  2302.             //pData->idStr += label;

  2303.             pData->options = pData->loadSettings(pData->options, getOptionsAvailable());

  2304. 

  2305.             // ignore settings, we need this anyway

  2306.             if (getMidiInCount() > 0 || (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS) != 0)

  2307.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2308.         }

  2309. 

  2310.         return true;

  2311.     }

  2312. 

  2313.     class ScopedInitializer

  2314.     {

  2315.     public:

  2316.         ScopedInitializer()

  2317.         {

  2318.             carla_register_all_plugins();

  2319.         }

  2320. 

  2321.         ~ScopedInitializer()

  2322.         {

  2323.             sPluginDescriptors.clear();

  2324.         }

  2325.     };

  2326. 

  2327. private:

  2328.     NativePluginHandle   fHandle;

  2329.     NativePluginHandle   fHandle2;

  2330.     NativeHostDescriptor fHost;

  2331.     const NativePluginDescriptor* fDescriptor;

  2332. 

  2333.     bool fIsProcessing;

  2334.     bool fIsUiVisible;

  2335. 

  2336.     float**         fAudioInBuffers;

  2337.     float**         fAudioOutBuffers;

  2338.     uint32_t        fMidiEventCount;

  2339.     NativeMidiEvent fMidiEvents[kPluginMaxMidiEvents*2];

  2340. 

  2341.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  2342. 

  2343.     NativePluginMidiData fMidiIn;

  2344.     NativePluginMidiData fMidiOut;

  2345. 

  2346.     NativeTimeInfo fTimeInfo;

  2347. 

  2348.     static List<const NativePluginDescriptor*> sPluginDescriptors;

  2349. 

  2350.     // -------------------------------------------------------------------

  2351. 

  2352.     #define handlePtr ((NativePlugin*)handle)

  2353. 

  2354.     static uint32_t carla_host_get_buffer_size(NativeHostHandle handle)

  2355.     {

  2356.         return handlePtr->handleGetBufferSize();

  2357.     }

  2358. 

  2359.     static double carla_host_get_sample_rate(NativeHostHandle handle)

  2360.     {

  2361.         return handlePtr->handleGetSampleRate();

  2362.     }

  2363. 

  2364.     static bool carla_host_is_offline(NativeHostHandle handle)

  2365.     {

  2366.         return handlePtr->handleIsOffline();

  2367.     }

  2368. 

  2369.     static const NativeTimeInfo* carla_host_get_time_info(NativeHostHandle handle)

  2370.     {

  2371.         return handlePtr->handleGetTimeInfo();

  2372.     }

  2373. 

  2374.     static bool carla_host_write_midi_event(NativeHostHandle handle, const NativeMidiEvent* event)

  2375.     {

  2376.         return handlePtr->handleWriteMidiEvent(event);

  2377.     }

  2378. 

  2379.     static void carla_host_ui_parameter_changed(NativeHostHandle handle, uint32_t index, float value)

  2380.     {

  2381.         handlePtr->handleUiParameterChanged(index, value);

  2382.     }

  2383. 

  2384.     static void carla_host_ui_custom_data_changed(NativeHostHandle handle, const char* key, const char* value)

  2385.     {

  2386.         handlePtr->handleUiCustomDataChanged(key, value);

  2387.     }

  2388. 

  2389.     static void carla_host_ui_closed(NativeHostHandle handle)

  2390.     {

  2391.         handlePtr->handleUiClosed();

  2392.     }

  2393. 

  2394.     static const char* carla_host_ui_open_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2395.     {

  2396.         return handlePtr->handleUiOpenFile(isDir, title, filter);

  2397.     }

  2398. 

  2399.     static const char* carla_host_ui_save_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2400.     {

  2401.         return handlePtr->handleUiSaveFile(isDir, title, filter);

  2402.     }

  2403. 

  2404.     static intptr_t carla_host_dispatcher(NativeHostHandle handle, NativeHostDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  2405.     {

  2406.         return handlePtr->handleDispatcher(opcode, index, value, ptr, opt);

  2407.     }

  2408. 

  2409.     #undef handlePtr

  2410. 

  2411.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(NativePlugin)

  2412. };

  2413. 

  2414. List<const NativePluginDescriptor*> NativePlugin::sPluginDescriptors;

  2415. 

  2416. static const NativePlugin::ScopedInitializer _si;

  2417. 

  2418. CARLA_BACKEND_END_NAMESPACE

  2419. 

  2420. void carla_register_native_plugin(const NativePluginDescriptor* desc)

  2421. {

  2422.     CARLA_BACKEND_USE_NAMESPACE

  2423.     NativePlugin::registerPlugin(desc);

  2424. }

  2425. 

  2426. #endif // WANT_NATIVE

  2427. 

  2428. // -----------------------------------------------------------------------

  2429. 

  2430. CARLA_BACKEND_START_NAMESPACE

  2431. 

  2432. #ifdef WANT_NATIVE

  2433. size_t CarlaPlugin::getNativePluginCount()

  2434. {

  2435.     return NativePlugin::getPluginCount();

  2436. }

  2437. 

  2438. const NativePluginDescriptor* CarlaPlugin::getNativePluginDescriptor(const size_t index)

  2439. {

  2440.     return NativePlugin::getPluginDescriptor(index);

  2441. }

  2442. #endif

  2443. 

  2444. // -----------------------------------------------------------------------

  2445. 

  2446. CarlaPlugin* CarlaPlugin::newNative(const Initializer& init)

  2447. {

  2448.     carla_debug("CarlaPlugin::newNative({%p, \"%s\", \"%s\", \"%s\"})", init.engine, init.filename, init.name, init.label);

  2449. 

  2450. #ifdef WANT_NATIVE

  2451.     NativePlugin* const plugin(new NativePlugin(init.engine, init.id));

  2452. 

  2453.     if (! plugin->init(init.name, init.label))

  2454.     {

  2455.         delete plugin;

  2456.         return nullptr;

  2457.     }

  2458. 

  2459.     plugin->reload();

  2460. 

  2461.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && ! plugin->canRunInRack())

  2462.     {

  2463.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo Internal plugins, sorry!");

  2464.         delete plugin;

  2465.         return nullptr;

  2466.     }

  2467. 

  2468.     return plugin;

  2469. #else

  2470.     init.engine->setLastError("Internal plugins support not available");

  2471.     return nullptr;

  2472. #endif

  2473. }

  2474. 

  2475. CARLA_BACKEND_END_NAMESPACE

  2476. 

  2477. // -----------------------------------------------------------------------