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Carla/source/backend/plugin/NativePlugin.cpp

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  1. /*

  2.  * Carla Native Plugin

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

  4.  *

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

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

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

  8.  * the License, or any later version.

  9.  *

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

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

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

  13.  * GNU General Public License for more details.

  14.  *

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

  16.  */

  17. 

  18. #include "CarlaPluginInternal.hpp"

  19. 

  20. #ifdef WANT_NATIVE

  21. 

  22. #include "CarlaNative.h"

  23. #include "CarlaHost.h"

  24. 

  25. #include <QtCore/QStringList>

  26. 

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

  28. 

  29. CARLA_BACKEND_START_NAMESPACE

  30. 

  31. #if 0

  32. }

  33. #endif

  34. 

  35. struct NativePluginMidiData {

  36.     uint32_t  count;

  37.     uint32_t* indexes;

  38.     CarlaEngineEventPort** ports;

  39. 

  40.     NativePluginMidiData()

  41.         : count(0),

  42.           indexes(nullptr),

  43.           ports(nullptr) {}

  44. 

  45.     ~NativePluginMidiData()

  46.     {

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

  48.         CARLA_ASSERT(indexes == nullptr);

  49.         CARLA_ASSERT(ports == nullptr);

  50.     }

  51. 

  52.     void createNew(const uint32_t newCount)

  53.     {

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

  55.         CARLA_SAFE_ASSERT_RETURN(indexes == nullptr,);

  56.         CARLA_SAFE_ASSERT_RETURN(ports == nullptr,);

  57.         CARLA_SAFE_ASSERT_RETURN(newCount > 0,);

  58. 

  59.         ports   = new CarlaEngineEventPort*[newCount];

  60.         indexes = new uint32_t[newCount];

  61.         count   = newCount;

  62. 

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

  64.             ports[i] = nullptr;

  65. 

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

  67.             indexes[i] = 0;

  68.     }

  69. 

  70.     void clear()

  71.     {

  72.         if (ports != nullptr)

  73.         {

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

  75.             {

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

  77.                 {

  78.                     delete ports[i];

  79.                     ports[i] = nullptr;

  80.                 }

  81.             }

  82. 

  83.             delete[] ports;

  84.             ports = nullptr;

  85.         }

  86. 

  87.         if (indexes != nullptr)

  88.         {

  89.             delete[] indexes;

  90.             indexes = nullptr;

  91.         }

  92. 

  93.         count = 0;

  94.     }

  95. 

  96.     void initBuffers()

  97.     {

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

  99.         {

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

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

  102.         }

  103.     }

  104. 

  105.     CARLA_DECLARE_NON_COPY_STRUCT(NativePluginMidiData)

  106. };

  107. 

  108. class NativePlugin : public CarlaPlugin

  109. {

  110. public:

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

  112.         : CarlaPlugin(engine, id),

  113.           fHandle(nullptr),

  114.           fHandle2(nullptr),

  115.           fDescriptor(nullptr),

  116.           fIsProcessing(false),

  117.           fIsUiVisible(false),

  118.           fAudioInBuffers(nullptr),

  119.           fAudioOutBuffers(nullptr),

  120.           fMidiEventCount(0)

  121.     {

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

  123. 

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

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

  126.         carla_zeroStruct<NativeTimeInfo>(fTimeInfo);

  127. 

  128.         fHost.handle      = this;

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

  130.         fHost.uiName      = nullptr;

  131. 

  132.         fHost.get_buffer_size        = carla_host_get_buffer_size;

  133.         fHost.get_sample_rate        = carla_host_get_sample_rate;

  134.         fHost.is_offline             = carla_host_is_offline;

  135.         fHost.get_time_info          = carla_host_get_time_info;

  136.         fHost.write_midi_event       = carla_host_write_midi_event;

  137.         fHost.ui_parameter_changed   = carla_host_ui_parameter_changed;

  138.         fHost.ui_custom_data_changed = carla_host_ui_custom_data_changed;

  139.         fHost.ui_closed              = carla_host_ui_closed;

  140.         fHost.ui_open_file           = carla_host_ui_open_file;

  141.         fHost.ui_save_file           = carla_host_ui_save_file;

  142.         fHost.dispatcher             = carla_host_dispatcher;

  143.     }

  144. 

  145.     ~NativePlugin() override

  146.     {

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

  148. 

  149.         // close UI

  150.         if (pData->hints & PLUGIN_HAS_UI)

  151.         {

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

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

  154.         }

  155. 

  156.         pData->singleMutex.lock();

  157.         pData->masterMutex.lock();

  158. 

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

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

  161. 

  162.         CARLA_ASSERT(! fIsProcessing);

  163. 

  164.         if (pData->active)

  165.         {

  166.             deactivate();

  167.             pData->active = false;

  168.         }

  169. 

  170.         if (fDescriptor != nullptr)

  171.         {

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

  173.             {

  174.                 if (fHandle != nullptr)

  175.                     fDescriptor->cleanup(fHandle);

  176.                 if (fHandle2 != nullptr)

  177.                     fDescriptor->cleanup(fHandle2);

  178.             }

  179. 

  180.             fHandle  = nullptr;

  181.             fHandle2 = nullptr;

  182.             fDescriptor = nullptr;

  183.         }

  184. 

  185.         if (fHost.resourceDir != nullptr)

  186.         {

  187.             delete[] fHost.resourceDir;

  188.             fHost.resourceDir = nullptr;

  189.         }

  190. 

  191.         if (fHost.uiName != nullptr)

  192.         {

  193.             delete[] fHost.uiName;

  194.             fHost.uiName = nullptr;

  195.         }

  196. 

  197.         clearBuffers();

  198.     }

  199. 

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

  201.     // Information (base)

  202. 

  203.     PluginType getType() const noexcept override

  204.     {

  205.         return PLUGIN_INTERNAL;

  206.     }

  207. 

  208.     PluginCategory getCategory() const override

  209.     {

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

  211. 

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

  213.     }

  214. 

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

  216.     // Information (count)

  217. 

  218.     uint32_t getMidiInCount() const noexcept override

  219.     {

  220.         return fMidiIn.count;

  221.     }

  222. 

  223.     uint32_t getMidiOutCount() const noexcept override

  224.     {

  225.         return fMidiOut.count;

  226.     }

  227. 

  228.     uint32_t getParameterScalePointCount(const uint32_t parameterId) const override

  229.     {

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

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

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

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

  234. 

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

  236.             return param->scalePointCount;

  237. 

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

  239.         return 0;

  240.     }

  241. 

  242.     // -------------------------------------------------------------------

  243.     // Information (current data)

  244. 

  245.     // nothing

  246. 

  247.     // -------------------------------------------------------------------

  248.     // Information (per-plugin data)

  249. 

  250.     unsigned int getOptionsAvailable() const override

  251.     {

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

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

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

  550. 

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

  552.             {

  553.                 uint8_t channel = 0;

  554.                 foreach (const QString& midiProg, midiProgramList)

  555.                 {

  556.                     bool ok;

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

  558. 

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

  560.                     {

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

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

  563. 

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

  565. 

  566.                         if (fHandle2 != nullptr)

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

  568. 

  569.                         fCurMidiProgs[channel] = index;

  570. 

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

  572.                         {

  573.                             pData->midiprog.current = index;

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

  575.                         }

  576.                     }

  577. 

  578.                     ++channel;

  579.                 }

  580.             }

  581.         }

  582.         else

  583.         {

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

  585.             {

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

  587. 

  588.                 if (fHandle2 != nullptr)

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

  590.             }

  591. 

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

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

  594.         }

  595. 

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

  597.     }

  598. 

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

  600.     {

  601.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  602.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  604. 

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

  606.            return;

  607. 

  608.         if (index >= 0)

  609.         {

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

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

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

  613. 

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

  615. 

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

  617. 

  618.             if (fHandle2 != nullptr)

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

  620. 

  621.             fCurMidiProgs[channel] = index;

  622.         }

  623. 

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

  625.     }

  626. 

  627.     // -------------------------------------------------------------------

  628.     // Set gui stuff

  629. 

  630.     void showCustomUI(const bool yesNo) override

  631.     {

  632.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  633.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  634. 

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

  636.             return;

  637. 

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

  639.         fIsUiVisible = yesNo;

  640. 

  641.         if (! yesNo)

  642.             return;

  643. 

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

  645.         {

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

  647.             {

  648.                 const CustomData& cData(it.getConstValue());

  649. 

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

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

  652.             }

  653.         }

  654. 

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

  656.         {

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

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

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

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

  661. 

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

  663.         }

  664. 

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

  666.         {

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

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

  669.         }

  670.     }

  671. 

  672.     void idle() override

  673.     {

  674.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  675.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  676. 

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

  678.             fDescriptor->ui_idle(fHandle);

  679. 

  680.         CarlaPlugin::idle();

  681.     }

  682. 

  683.     // -------------------------------------------------------------------

  684.     // Plugin state

  685. 

  686.     void reload() override

  687.     {

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

  689.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  690.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  692. 

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

  694. 

  695.         // Safely disable plugin for reload

  696.         const ScopedDisabler sd(this);

  697. 

  698.         if (pData->active)

  699.             deactivate();

  700. 

  701.         clearBuffers();

  702. 

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

  704. 

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

  706. 

  707.         bool forcedStereoIn, forcedStereoOut;

  708.         forcedStereoIn = forcedStereoOut = false;

  709. 

  710.         bool needsCtrlIn, needsCtrlOut;

  711.         needsCtrlIn = needsCtrlOut = false;

  712. 

  713.         aIns   = fDescriptor->audioIns;

  714.         aOuts  = fDescriptor->audioOuts;

  715.         mIns   = fDescriptor->midiIns;

  716.         mOuts  = fDescriptor->midiOuts;

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

  718. 

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

  720.         {

  721.             if (fHandle2 == nullptr)

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

  723. 

  724.             if (fHandle2 != nullptr)

  725.             {

  726.                 if (aIns == 1)

  727.                 {

  728.                     aIns = 2;

  729.                     forcedStereoIn = true;

  730.                 }

  731. 

  732.                 if (aOuts == 1)

  733.                 {

  734.                     aOuts = 2;

  735.                     forcedStereoOut = true;

  736.                 }

  737.             }

  738.         }

  739. 

  740.         if (aIns > 0)

  741.         {

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

  743.             fAudioInBuffers = new float*[aIns];

  744. 

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

  746.                 fAudioInBuffers[i] = nullptr;

  747.         }

  748. 

  749.         if (aOuts > 0)

  750.         {

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

  752.             fAudioOutBuffers = new float*[aOuts];

  753.             needsCtrlIn = true;

  754. 

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

  756.                 fAudioOutBuffers[i] = nullptr;

  757.         }

  758. 

  759.         if (mIns > 0)

  760.         {

  761.             fMidiIn.createNew(mIns);

  762.             needsCtrlIn = (mIns == 1);

  763.         }

  764. 

  765.         if (mOuts > 0)

  766.         {

  767.             fMidiOut.createNew(mOuts);

  768.             needsCtrlOut = (mOuts == 1);

  769.         }

  770. 

  771.         if (params > 0)

  772.         {

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

  774.         }

  775. 

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

  777.         CarlaString portName;

  778. 

  779.         // Audio Ins

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

  781.         {

  782.             portName.clear();

  783. 

  784.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  785.             {

  786.                 portName  = pData->name;

  787.                 portName += ":";

  788.             }

  789. 

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

  791.             {

  792.                 portName += "input_";

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

  794.             }

  795.             else

  796.                 portName += "input";

  797. 

  798.             portName.truncate(portNameSize);

  799. 

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

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

  802. 

  803.             if (forcedStereoIn)

  804.             {

  805.                 portName += "_2";

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

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

  808.                 break;

  809.             }

  810.         }

  811. 

  812.         // Audio Outs

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

  814.         {

  815.             portName.clear();

  816. 

  817.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  818.             {

  819.                 portName  = pData->name;

  820.                 portName += ":";

  821.             }

  822. 

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

  824.             {

  825.                 portName += "output_";

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

  827.             }

  828.             else

  829.                 portName += "output";

  830. 

  831.             portName.truncate(portNameSize);

  832. 

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

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

  835. 

  836.             if (forcedStereoOut)

  837.             {

  838.                 portName += "_2";

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

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

  841.                 break;

  842.             }

  843.         }

  844. 

  845.         // MIDI Input (only if multiple)

  846.         if (mIns > 1)

  847.         {

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

  849.             {

  850.                 portName.clear();

  851. 

  852.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  853.                 {

  854.                     portName  = pData->name;

  855.                     portName += ":";

  856.                 }

  857. 

  858.                 portName += "midi-in_";

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

  860.                 portName.truncate(portNameSize);

  861. 

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

  863.                 fMidiIn.indexes[j] = j;

  864.             }

  865.         }

  866. 

  867.         // MIDI Output (only if multiple)

  868.         if (mOuts > 1)

  869.         {

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

  871.             {

  872.                 portName.clear();

  873. 

  874.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  875.                 {

  876.                     portName  = pData->name;

  877.                     portName += ":";

  878.                 }

  879. 

  880.                 portName += "midi-out_";

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

  882.                 portName.truncate(portNameSize);

  883. 

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

  885.                 fMidiOut.indexes[j] = j;

  886.             }

  887.         }

  888. 

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

  890.         {

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

  892. 

  893.             CARLA_SAFE_ASSERT_CONTINUE(paramInfo != nullptr);

  894. 

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

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

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

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

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

  900. 

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

  902. 

  903.             // min value

  904.             min = paramInfo->ranges.min;

  905. 

  906.             // max value

  907.             max = paramInfo->ranges.max;

  908. 

  909.             if (min > max)

  910.                 max = min;

  911.             else if (max < min)

  912.                 min = max;

  913. 

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

  915.             {

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

  917.                 max = min + 0.1f;

  918.             }

  919. 

  920.             // default value

  921.             def = paramInfo->ranges.def;

  922. 

  923.             if (def < min)

  924.                 def = min;

  925.             else if (def > max)

  926.                 def = max;

  927. 

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

  929.             {

  930.                 min *= sampleRate;

  931.                 max *= sampleRate;

  932.                 def *= sampleRate;

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

  934.             }

  935. 

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

  937.             {

  938.                 step = max - min;

  939.                 stepSmall = step;

  940.                 stepLarge = step;

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

  942.             }

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

  944.             {

  945.                 step = 1.0f;

  946.                 stepSmall = 1.0f;

  947.                 stepLarge = 10.0f;

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

  949.             }

  950.             else

  951.             {

  952.                 float range = max - min;

  953.                 step = range/100.0f;

  954.                 stepSmall = range/1000.0f;

  955.                 stepLarge = range/10.0f;

  956.             }

  957. 

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

  959.             {

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

  961.                 needsCtrlOut = true;

  962.             }

  963.             else

  964.             {

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

  966.                 needsCtrlIn = true;

  967.             }

  968. 

  969.             // extra parameter hints

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

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

  972. 

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

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

  975. 

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

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

  978. 

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

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

  981. 

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

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

  984. 

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

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

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

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

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

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

  991.         }

  992. 

  993.         if (needsCtrlIn)

  994.         {

  995.             portName.clear();

  996. 

  997.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  998.             {

  999.                 portName  = pData->name;

  1000.                 portName += ":";

  1001.             }

  1002. 

  1003.             portName += "events-in";

  1004.             portName.truncate(portNameSize);

  1005. 

  1006.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  1007.         }

  1008. 

  1009.         if (needsCtrlOut)

  1010.         {

  1011.             portName.clear();

  1012. 

  1013.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  1014.             {

  1015.                 portName  = pData->name;

  1016.                 portName += ":";

  1017.             }

  1018. 

  1019.             portName += "events-out";

  1020.             portName.truncate(portNameSize);

  1021. 

  1022.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  1023.         }

  1024. 

  1025.         if (forcedStereoIn || forcedStereoOut)

  1026.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1027.         else

  1028.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  1029. 

  1030.         // plugin hints

  1031.         pData->hints = 0x0;

  1032. 

  1033.         if (aOuts > 0 && (aIns == aOuts || aIns == 1))

  1034.             pData->hints |= PLUGIN_CAN_DRYWET;

  1035. 

  1036.         if (aOuts > 0)

  1037.             pData->hints |= PLUGIN_CAN_VOLUME;

  1038. 

  1039.         if (aOuts >= 2 && aOuts % 2 == 0)

  1040.             pData->hints |= PLUGIN_CAN_BALANCE;

  1041. 

  1042.         // native plugin hints

  1043.         if (fDescriptor->hints & ::PLUGIN_IS_RTSAFE)

  1044.             pData->hints |= PLUGIN_IS_RTSAFE;

  1045.         if (fDescriptor->hints & ::PLUGIN_IS_SYNTH)

  1046.             pData->hints |= PLUGIN_IS_SYNTH;

  1047.         if (fDescriptor->hints & ::PLUGIN_HAS_UI)

  1048.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  1049.         if (fDescriptor->hints & ::PLUGIN_NEEDS_SINGLE_THREAD)

  1050.             pData->hints |= PLUGIN_NEEDS_SINGLE_THREAD;

  1051.         if (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS)

  1052.             pData->hints |= PLUGIN_NEEDS_FIXED_BUFFERS;

  1053. 

  1054.         // extra plugin hints

  1055.         pData->extraHints = 0x0;

  1056. 

  1057.         if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0) && mIns <= 1 && mOuts <= 1)

  1058.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  1059. 

  1060.         bufferSizeChanged(pData->engine->getBufferSize());

  1061.         reloadPrograms(true);

  1062. 

  1063.         if (pData->active)

  1064.             activate();

  1065. 

  1066.         carla_debug("NativePlugin::reload() - end");

  1067.     }

  1068. 

  1069.     void reloadPrograms(const bool init) override

  1070.     {

  1071.         carla_debug("NativePlugin::reloadPrograms(%s)", bool2str(init));

  1072.         uint32_t i, oldCount  = pData->midiprog.count;

  1073.         const int32_t current = pData->midiprog.current;

  1074. 

  1075.         // Delete old programs

  1076.         pData->midiprog.clear();

  1077. 

  1078.         // Query new programs

  1079.         uint32_t count = 0;

  1080.         if (fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_info != nullptr && fDescriptor->set_midi_program != nullptr)

  1081.             count = fDescriptor->get_midi_program_count(fHandle);

  1082. 

  1083.         if (count > 0)

  1084.         {

  1085.             pData->midiprog.createNew(count);

  1086. 

  1087.             // Update data

  1088.             for (i=0; i < count; ++i)

  1089.             {

  1090.                 const NativeMidiProgram* const mpDesc(fDescriptor->get_midi_program_info(fHandle, i));

  1091.                 CARLA_ASSERT(mpDesc != nullptr);

  1092.                 CARLA_ASSERT(mpDesc->name != nullptr);

  1093. 

  1094.                 pData->midiprog.data[i].bank    = mpDesc->bank;

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

  1096.                 pData->midiprog.data[i].name    = carla_strdup(mpDesc->name);

  1097.             }

  1098.         }

  1099. 

  1100. #ifndef BUILD_BRIDGE

  1101.         // Update OSC Names

  1102.         if (pData->engine->isOscControlRegistered())

  1103.         {

  1104.             pData->engine->oscSend_control_set_midi_program_count(pData->id, count);

  1105. 

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

  1107.                 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);

  1108.         }

  1109. #endif

  1110. 

  1111.         if (init)

  1112.         {

  1113.             if (count > 0)

  1114.                 setMidiProgram(0, false, false, false);

  1115.         }

  1116.         else

  1117.         {

  1118.             // Check if current program is invalid

  1119.             bool programChanged = false;

  1120. 

  1121.             if (count == oldCount+1)

  1122.             {

  1123.                 // one midi program added, probably created by user

  1124.                 pData->midiprog.current = oldCount;

  1125.                 programChanged = true;

  1126.             }

  1127.             else if (current < 0 && count > 0)

  1128.             {

  1129.                 // programs exist now, but not before

  1130.                 pData->midiprog.current = 0;

  1131.                 programChanged = true;

  1132.             }

  1133.             else if (current >= 0 && count == 0)

  1134.             {

  1135.                 // programs existed before, but not anymore

  1136.                 pData->midiprog.current = -1;

  1137.                 programChanged = true;

  1138.             }

  1139.             else if (current >= static_cast<int32_t>(count))

  1140.             {

  1141.                 // current midi program > count

  1142.                 pData->midiprog.current = 0;

  1143.                 programChanged = true;

  1144.             }

  1145.             else

  1146.             {

  1147.                 // no change

  1148.                 pData->midiprog.current = current;

  1149.             }

  1150. 

  1151.             if (programChanged)

  1152.                 setMidiProgram(pData->midiprog.current, true, true, true);

  1153. 

  1154.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1155.         }

  1156.     }

  1157. 

  1158.     // -------------------------------------------------------------------

  1159.     // Plugin processing

  1160. 

  1161.     void activate() override

  1162.     {

  1163.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1164.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1165. 

  1166.         if (fDescriptor->activate != nullptr)

  1167.         {

  1168.             fDescriptor->activate(fHandle);

  1169. 

  1170.             if (fHandle2 != nullptr)

  1171.                 fDescriptor->activate(fHandle2);

  1172.         }

  1173.     }

  1174. 

  1175.     void deactivate() override

  1176.     {

  1177.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1178.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1179. 

  1180.         if (fDescriptor->deactivate != nullptr)

  1181.         {

  1182.             fDescriptor->deactivate(fHandle);

  1183. 

  1184.             if (fHandle2 != nullptr)

  1185.                 fDescriptor->deactivate(fHandle2);

  1186.         }

  1187.     }

  1188. 

  1189.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames) override

  1190.     {

  1191.         uint32_t i/*, k*/;

  1192. 

  1193.         // --------------------------------------------------------------------------------------------------------

  1194.         // Check if active

  1195. 

  1196.         if (! pData->active)

  1197.         {

  1198.             // disable any output sound

  1199.             for (i=0; i < pData->audioOut.count; ++i)

  1200.                 FLOAT_CLEAR(outBuffer[i], frames);

  1201. 

  1202.             return;

  1203.         }

  1204. 

  1205.         fMidiEventCount = 0;

  1206.         carla_zeroStruct<NativeMidiEvent>(fMidiEvents, kPluginMaxMidiEvents*2);

  1207. 

  1208.         // --------------------------------------------------------------------------------------------------------

  1209.         // Check if needs reset

  1210. 

  1211.         if (pData->needsReset)

  1212.         {

  1213.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1214.             {

  1215.                 for (uint8_t k=0, i=MAX_MIDI_CHANNELS; k < MAX_MIDI_CHANNELS; ++k)

  1216.                 {

  1217.                     fMidiEvents[k].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + k);

  1218.                     fMidiEvents[k].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1219.                     fMidiEvents[k].data[2] = 0;

  1220.                     fMidiEvents[k].size    = 3;

  1221. 

  1222.                     fMidiEvents[k+i].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + k);

  1223.                     fMidiEvents[k+i].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1224.                     fMidiEvents[k+i].data[2] = 0;

  1225.                     fMidiEvents[k+i].size    = 3;

  1226.                 }

  1227. 

  1228.                 fMidiEventCount = MAX_MIDI_CHANNELS*2;

  1229.             }

  1230.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1231.             {

  1232.                 for (uint8_t k=0; k < MAX_MIDI_NOTE; ++k)

  1233.                 {

  1234.                     fMidiEvents[k].data[0] = static_cast<uint8_t>(MIDI_STATUS_NOTE_OFF + pData->ctrlChannel);

  1235.                     fMidiEvents[k].data[1] = k;

  1236.                     fMidiEvents[k].data[2] = 0;

  1237.                     fMidiEvents[k].size    = 3;

  1238.                 }

  1239. 

  1240.                 fMidiEventCount = MAX_MIDI_NOTE;

  1241.             }

  1242. 

  1243.             pData->needsReset = false;

  1244.         }

  1245. 

  1246.         CARLA_PROCESS_CONTINUE_CHECK;

  1247. 

  1248.         // --------------------------------------------------------------------------------------------------------

  1249.         // Set TimeInfo

  1250. 

  1251.         const EngineTimeInfo& timeInfo(pData->engine->getTimeInfo());

  1252. 

  1253.         fTimeInfo.playing = timeInfo.playing;

  1254.         fTimeInfo.frame   = timeInfo.frame;

  1255.         fTimeInfo.usecs   = timeInfo.usecs;

  1256. 

  1257.         if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1258.         {

  1259.             fTimeInfo.bbt.valid = true;

  1260. 

  1261.             fTimeInfo.bbt.bar  = timeInfo.bbt.bar;

  1262.             fTimeInfo.bbt.beat = timeInfo.bbt.beat;

  1263.             fTimeInfo.bbt.tick = timeInfo.bbt.tick;

  1264.             fTimeInfo.bbt.barStartTick = timeInfo.bbt.barStartTick;

  1265. 

  1266.             fTimeInfo.bbt.beatsPerBar = timeInfo.bbt.beatsPerBar;

  1267.             fTimeInfo.bbt.beatType    = timeInfo.bbt.beatType;

  1268. 

  1269.             fTimeInfo.bbt.ticksPerBeat   = timeInfo.bbt.ticksPerBeat;

  1270.             fTimeInfo.bbt.beatsPerMinute = timeInfo.bbt.beatsPerMinute;

  1271.         }

  1272.         else

  1273.             fTimeInfo.bbt.valid = false;

  1274. 

  1275.         CARLA_PROCESS_CONTINUE_CHECK;

  1276. 

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

  1278.         // Event Input and Processing

  1279. 

  1280.         if (pData->event.portIn != nullptr)

  1281.         {

  1282.             // ----------------------------------------------------------------------------------------------------

  1283.             // MIDI Input (External)

  1284. 

  1285.             if (pData->extNotes.mutex.tryLock())

  1286.             {

  1287.                 while (fMidiEventCount < kPluginMaxMidiEvents*2 && ! pData->extNotes.data.isEmpty())

  1288.                 {

  1289.                     const ExternalMidiNote& note(pData->extNotes.data.getFirst(true));

  1290. 

  1291.                     CARLA_ASSERT(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1292. 

  1293.                     fMidiEvents[fMidiEventCount].data[0] = note.channel + (note.velo > 0) ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF;

  1294.                     fMidiEvents[fMidiEventCount].data[1] = note.note;

  1295.                     fMidiEvents[fMidiEventCount].data[2] = note.velo;

  1296.                     fMidiEvents[fMidiEventCount].size    = 3;

  1297. 

  1298.                     fMidiEventCount += 1;

  1299.                 }

  1300. 

  1301.                 pData->extNotes.mutex.unlock();

  1302. 

  1303.             } // End of MIDI Input (External)

  1304. 

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

  1306.             // Event Input (System)

  1307. 

  1308.             bool allNotesOffSent = false;

  1309.             bool sampleAccurate  = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1310. 

  1311.             uint32_t time, nEvents = pData->event.portIn->getEventCount();

  1312.             uint32_t startTime  = 0;

  1313.             uint32_t timeOffset = 0;

  1314.             uint32_t nextBankId = 0;

  1315. 

  1316.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1317.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1318. 

  1319.             for (i=0; i < nEvents; ++i)

  1320.             {

  1321.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1322. 

  1323.                 time = event.time;

  1324. 

  1325.                 if (time >= frames)

  1326.                     continue;

  1327. 

  1328.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  1329. 

  1330.                 if (time > timeOffset && sampleAccurate)

  1331.                 {

  1332.                     if (processSingle(inBuffer, outBuffer, time - timeOffset, timeOffset))

  1333.                     {

  1334.                         startTime  = 0;

  1335.                         timeOffset = time;

  1336. 

  1337.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1338.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1339.                         else

  1340.                             nextBankId = 0;

  1341. 

  1342.                         if (fMidiEventCount > 0)

  1343.                         {

  1344.                             carla_zeroStruct<NativeMidiEvent>(fMidiEvents, fMidiEventCount);

  1345.                             fMidiEventCount = 0;

  1346.                         }

  1347.                     }

  1348.                     else

  1349.                         startTime += timeOffset;

  1350.                 }

  1351. 

  1352.                 // Control change

  1353.                 switch (event.type)

  1354.                 {

  1355.                 case kEngineEventTypeNull:

  1356.                     break;

  1357. 

  1358.                 case kEngineEventTypeControl:

  1359.                 {

  1360.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1361. 

  1362.                     switch (ctrlEvent.type)

  1363.                     {

  1364.                     case kEngineControlEventTypeNull:

  1365.                         break;

  1366. 

  1367.                     case kEngineControlEventTypeParameter:

  1368.                     {

  1369. #ifndef BUILD_BRIDGE

  1370.                         // Control backend stuff

  1371.                         if (event.channel == pData->ctrlChannel)

  1372.                         {

  1373.                             float value;

  1374. 

  1375.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) > 0)

  1376.                             {

  1377.                                 value = ctrlEvent.value;

  1378.                                 setDryWet(value, false, false);

  1379.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1380.                             }

  1381. 

  1382.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) > 0)

  1383.                             {

  1384.                                 value = ctrlEvent.value*127.0f/100.0f;

  1385.                                 setVolume(value, false, false);

  1386.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1387.                             }

  1388. 

  1389.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) > 0)

  1390.                             {

  1391.                                 float left, right;

  1392.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1393. 

  1394.                                 if (value < 0.0f)

  1395.                                 {

  1396.                                     left  = -1.0f;

  1397.                                     right = (value*2.0f)+1.0f;

  1398.                                 }

  1399.                                 else if (value > 0.0f)

  1400.                                 {

  1401.                                     left  = (value*2.0f)-1.0f;

  1402.                                     right = 1.0f;

  1403.                                 }

  1404.                                 else

  1405.                                 {

  1406.                                     left  = -1.0f;

  1407.                                     right = 1.0f;

  1408.                                 }

  1409. 

  1410.                                 setBalanceLeft(left, false, false);

  1411.                                 setBalanceRight(right, false, false);

  1412.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1413.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1414.                             }

  1415.                         }

  1416. #endif

  1417. 

  1418.                         // Control plugin parameters

  1419.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1420.                         {

  1421.                             if (pData->param.data[k].midiChannel != event.channel)

  1422.                                 continue;

  1423.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1424.                                 continue;

  1425.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1426.                                 continue;

  1427.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1428.                                 continue;

  1429. 

  1430.                             float value;

  1431. 

  1432.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1433.                             {

  1434.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1435.                             }

  1436.                             else

  1437.                             {

  1438.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1439. 

  1440.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1441.                                     value = std::rint(value);

  1442.                             }

  1443. 

  1444.                             setParameterValue(k, value, false, false, false);

  1445.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1446.                         }

  1447. 

  1448.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param <= 0x5F)

  1449.                         {

  1450.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1451.                                 continue;

  1452. 

  1453.                             fMidiEvents[fMidiEventCount].port    = 0;

  1454.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1455.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1456.                             fMidiEvents[fMidiEventCount].data[1] = static_cast<uint8_t>(ctrlEvent.param);

  1457.                             fMidiEvents[fMidiEventCount].data[2] = uint8_t(ctrlEvent.value*127.0f);

  1458.                             fMidiEvents[fMidiEventCount].size    = 3;

  1459. 

  1460.                             fMidiEventCount += 1;

  1461.                         }

  1462. 

  1463.                         break;

  1464.                     }

  1465. 

  1466.                     case kEngineControlEventTypeMidiBank:

  1467.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1468.                             nextBankId = ctrlEvent.param;

  1469.                         break;

  1470. 

  1471.                     case kEngineControlEventTypeMidiProgram:

  1472.                         if (event.channel < MAX_MIDI_CHANNELS && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1473.                         {

  1474.                             const uint32_t nextProgramId(ctrlEvent.param);

  1475. 

  1476.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1477.                             {

  1478.                                 if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1479.                                 {

  1480.                                     fDescriptor->set_midi_program(fHandle, event.channel, nextBankId, nextProgramId);

  1481. 

  1482.                                     if (fHandle2 != nullptr)

  1483.                                         fDescriptor->set_midi_program(fHandle2, event.channel, nextBankId, nextProgramId);

  1484. 

  1485.                                     fCurMidiProgs[event.channel] = k;

  1486. 

  1487.                                     if (event.channel == pData->ctrlChannel)

  1488.                                         pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0f);

  1489. 

  1490.                                     break;

  1491.                                 }

  1492.                             }

  1493.                         }

  1494.                         break;

  1495. 

  1496.                     case kEngineControlEventTypeAllSoundOff:

  1497.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1498.                         {

  1499.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1500.                                 continue;

  1501. 

  1502.                             fMidiEvents[fMidiEventCount].port    = 0;

  1503.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1504.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1505.                             fMidiEvents[fMidiEventCount].data[1] = MIDI_CONTROL_ALL_SOUND_OFF;

  1506.                             fMidiEvents[fMidiEventCount].data[2] = 0;

  1507.                             fMidiEvents[fMidiEventCount].size    = 3;

  1508. 

  1509.                             fMidiEventCount += 1;

  1510.                         }

  1511.                         break;

  1512. 

  1513.                     case kEngineControlEventTypeAllNotesOff:

  1514.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1515.                         {

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

  1517.                             {

  1518.                                 allNotesOffSent = true;

  1519.                                 sendMidiAllNotesOffToCallback();

  1520.                             }

  1521. 

  1522.                             if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1523.                                 continue;

  1524. 

  1525.                             fMidiEvents[fMidiEventCount].port    = 0;

  1526.                             fMidiEvents[fMidiEventCount].time    = sampleAccurate ? startTime : time;

  1527.                             fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(MIDI_STATUS_CONTROL_CHANGE + event.channel);

  1528.                             fMidiEvents[fMidiEventCount].data[1] = MIDI_CONTROL_ALL_NOTES_OFF;

  1529.                             fMidiEvents[fMidiEventCount].data[2] = 0;

  1530.                             fMidiEvents[fMidiEventCount].size    = 3;

  1531. 

  1532.                             fMidiEventCount += 1;

  1533.                         }

  1534.                         break;

  1535.                     }

  1536. 

  1537.                     break;

  1538.                 }

  1539. 

  1540.                 case kEngineEventTypeMidi:

  1541.                 {

  1542.                     if (fMidiEventCount >= kPluginMaxMidiEvents*2)

  1543.                         continue;

  1544. 

  1545.                     const EngineMidiEvent& midiEvent(event.midi);

  1546. 

  1547.                     uint8_t status  = MIDI_GET_STATUS_FROM_DATA(midiEvent.data);

  1548.                     uint8_t channel = event.channel;

  1549. 

  1550.                     if (MIDI_IS_STATUS_CHANNEL_PRESSURE(status) && (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) == 0)

  1551.                         continue;

  1552.                     if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) == 0)

  1553.                         continue;

  1554.                     if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) == 0)

  1555.                         continue;

  1556.                     if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (pData->options & PLUGIN_OPTION_SEND_PITCHBEND) == 0)

  1557.                         continue;

  1558. 

  1559.                     // Fix bad note-off

  1560.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1561.                         status = MIDI_STATUS_NOTE_OFF;

  1562. 

  1563.                     fMidiEvents[fMidiEventCount].port = 0;

  1564.                     fMidiEvents[fMidiEventCount].time = sampleAccurate ? startTime : time;

  1565.                     fMidiEvents[fMidiEventCount].size = midiEvent.size;

  1566. 

  1567.                     fMidiEvents[fMidiEventCount].data[0] = static_cast<uint8_t>(status + channel);

  1568.                     fMidiEvents[fMidiEventCount].data[1] = midiEvent.data[1];

  1569.                     fMidiEvents[fMidiEventCount].data[2] = midiEvent.data[2];

  1570.                     fMidiEvents[fMidiEventCount].data[3] = midiEvent.data[3];

  1571. 

  1572.                     fMidiEventCount += 1;

  1573. 

  1574.                     if (status == MIDI_STATUS_NOTE_ON)

  1575.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, channel, midiEvent.data[1], midiEvent.data[2]);

  1576.                     else if (status == MIDI_STATUS_NOTE_OFF)

  1577.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, channel, midiEvent.data[1], 0.0f);

  1578. 

  1579.                     break;

  1580.                 }

  1581.                 }

  1582.             }

  1583. 

  1584.             pData->postRtEvents.trySplice();

  1585. 

  1586.             if (frames > timeOffset)

  1587.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset);

  1588. 

  1589.         } // End of Event Input and Processing

  1590. 

  1591.         // --------------------------------------------------------------------------------------------------------

  1592.         // Plugin processing (no events)

  1593. 

  1594.         else

  1595.         {

  1596.             processSingle(inBuffer, outBuffer, frames, 0);

  1597. 

  1598.         } // End of Plugin processing (no events)

  1599. 

  1600.         CARLA_PROCESS_CONTINUE_CHECK;

  1601. 

  1602.         // --------------------------------------------------------------------------------------------------------

  1603.         // Control and MIDI Output

  1604. 

  1605.         if (fMidiOut.count > 0 || pData->event.portOut != nullptr)

  1606.         {

  1607.             float value, curValue;

  1608. 

  1609.             for (uint32_t k=0; k < pData->param.count; ++k)

  1610.             {

  1611.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1612.                     continue;

  1613. 

  1614.                 curValue = fDescriptor->get_parameter_value(fHandle, k);

  1615.                 pData->param.ranges[k].fixValue(curValue);

  1616. 

  1617.                 if (pData->param.data[k].midiCC > 0)

  1618.                 {

  1619.                     value = pData->param.ranges[k].getNormalizedValue(curValue);

  1620.                     pData->event.portOut->writeControlEvent(0, pData->param.data[k].midiChannel, kEngineControlEventTypeParameter, pData->param.data[k].midiCC, value);

  1621.                 }

  1622.             }

  1623. 

  1624.             // reverse lookup MIDI events

  1625.             for (uint32_t k = (kPluginMaxMidiEvents*2)-1; k >= fMidiEventCount; --k)

  1626.             {

  1627.                 if (fMidiEvents[k].data[0] == 0)

  1628.                     break;

  1629. 

  1630.                 const uint8_t channel = MIDI_GET_CHANNEL_FROM_DATA(fMidiEvents[k].data);

  1631.                 const uint8_t port    = fMidiEvents[k].port;

  1632. 

  1633.                 if (pData->event.portOut != nullptr)

  1634.                     pData->event.portOut->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].size, fMidiEvents[k].data);

  1635.                 else if (port < fMidiOut.count)

  1636.                     fMidiOut.ports[port]->writeMidiEvent(fMidiEvents[k].time, channel, port, fMidiEvents[k].size, fMidiEvents[k].data);

  1637.             }

  1638. 

  1639.         } // End of Control and MIDI Output

  1640.     }

  1641. 

  1642.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset)

  1643.     {

  1644.         CARLA_ASSERT(frames > 0);

  1645. 

  1646.         if (frames == 0)

  1647.             return false;

  1648. 

  1649.         if (pData->audioIn.count > 0)

  1650.         {

  1651.             CARLA_ASSERT(inBuffer != nullptr);

  1652.             if (inBuffer == nullptr)

  1653.                 return false;

  1654.         }

  1655.         if (pData->audioOut.count > 0)

  1656.         {

  1657.             CARLA_ASSERT(outBuffer != nullptr);

  1658.             if (outBuffer == nullptr)

  1659.                 return false;

  1660.         }

  1661. 

  1662.         uint32_t i, k;

  1663. 

  1664.         // --------------------------------------------------------------------------------------------------------

  1665.         // Try lock, silence otherwise

  1666. 

  1667.         if (pData->engine->isOffline())

  1668.         {

  1669.             pData->singleMutex.lock();

  1670.         }

  1671.         else if (! pData->singleMutex.tryLock())

  1672.         {

  1673.             for (i=0; i < pData->audioOut.count; ++i)

  1674.             {

  1675.                 for (k=0; k < frames; ++k)

  1676.                     outBuffer[i][k+timeOffset] = 0.0f;

  1677.             }

  1678. 

  1679.             return false;

  1680.         }

  1681. 

  1682.         // --------------------------------------------------------------------------------------------------------

  1683.         // Reset audio buffers

  1684. 

  1685.         for (i=0; i < pData->audioIn.count; ++i)

  1686.         {

  1687. #ifdef HAVE_JUCE

  1688.             FloatVectorOperations::copy(fAudioInBuffers[i], inBuffer[i]+timeOffset, frames);

  1689. #else

  1690. #endif

  1691.         }

  1692. 

  1693.         for (i=0; i < pData->audioOut.count; ++i)

  1694.         {

  1695. #ifdef HAVE_JUCE

  1696.             FloatVectorOperations::clear(fAudioOutBuffers[i], frames);

  1697. #else

  1698. #endif

  1699.         }

  1700. 

  1701.         // --------------------------------------------------------------------------------------------------------

  1702.         // Run plugin

  1703. 

  1704.         fIsProcessing = true;

  1705. 

  1706.         if (fHandle2 == nullptr)

  1707.         {

  1708.             fDescriptor->process(fHandle, fAudioInBuffers, fAudioOutBuffers, frames, fMidiEvents, fMidiEventCount);

  1709.         }

  1710.         else

  1711.         {

  1712.             fDescriptor->process(fHandle,

  1713.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[0] : nullptr,

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

  1715.                                  frames, fMidiEvents, fMidiEventCount);

  1716. 

  1717.             fDescriptor->process(fHandle2,

  1718.                                  (pData->audioIn.count > 0) ? &fAudioInBuffers[1] : nullptr,

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

  1720.                                  frames, fMidiEvents, fMidiEventCount);

  1721.         }

  1722. 

  1723.         fIsProcessing = false;

  1724.         fTimeInfo.frame += frames;

  1725. 

  1726. #ifndef BUILD_BRIDGE

  1727.         // --------------------------------------------------------------------------------------------------------

  1728.         // Post-processing (dry/wet, volume and balance)

  1729. 

  1730.         {

  1731.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && pData->postProc.dryWet != 1.0f;

  1732.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && (pData->postProc.balanceLeft != -1.0f || pData->postProc.balanceRight != 1.0f);

  1733. 

  1734.             bool isPair;

  1735.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1736. 

  1737.             for (i=0; i < pData->audioOut.count; ++i)

  1738.             {

  1739.                 // Dry/Wet

  1740.                 if (doDryWet)

  1741.                 {

  1742.                     for (k=0; k < frames; ++k)

  1743.                     {

  1744.                         bufValue = fAudioInBuffers[(pData->audioIn.count == 1) ? 0 : i][k];

  1745.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1746.                     }

  1747.                 }

  1748. 

  1749.                 // Balance

  1750.                 if (doBalance)

  1751.                 {

  1752.                     isPair = (i % 2 == 0);

  1753. 

  1754.                     if (isPair)

  1755.                     {

  1756.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1757. #ifdef HAVE_JUCE

  1758.                         FloatVectorOperations::copy(oldBufLeft, fAudioOutBuffers[i], frames);

  1759. #else

  1760. #endif

  1761.                     }

  1762. 

  1763.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

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

  1765. 

  1766.                     for (k=0; k < frames; ++k)

  1767.                     {

  1768.                         if (isPair)

  1769.                         {

  1770.                             // left

  1771.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1772.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1773.                         }

  1774.                         else

  1775.                         {

  1776.                             // right

  1777.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1778.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1779.                         }

  1780.                     }

  1781.                 }

  1782. 

  1783.                 // Volume (and buffer copy)

  1784.                 {

  1785.                     for (k=0; k < frames; ++k)

  1786.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1787.                 }

  1788.             }

  1789. 

  1790.         } // End of Post-processing

  1791. #else

  1792.         for (i=0; i < pData->audioOut.count; ++i)

  1793.         {

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

  1795.                 outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1796.         }

  1797. #endif

  1798. 

  1799.         // --------------------------------------------------------------------------------------------------------

  1800. 

  1801.         pData->singleMutex.unlock();

  1802.         return true;

  1803.     }

  1804. 

  1805.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1806.     {

  1807.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1808.         carla_debug("NativePlugin::bufferSizeChanged(%i)", newBufferSize);

  1809. 

  1810.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1811.         {

  1812.             if (fAudioInBuffers[i] != nullptr)

  1813.                 delete[] fAudioInBuffers[i];

  1814.             fAudioInBuffers[i] = new float[newBufferSize];

  1815.         }

  1816. 

  1817.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1818.         {

  1819.             if (fAudioOutBuffers[i] != nullptr)

  1820.                 delete[] fAudioOutBuffers[i];

  1821.             fAudioOutBuffers[i] = new float[newBufferSize];

  1822.         }

  1823. 

  1824.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1825.         {

  1826.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, newBufferSize, nullptr, 0.0f);

  1827. 

  1828.             if (fHandle2 != nullptr)

  1829.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_BUFFER_SIZE_CHANGED, 0, newBufferSize, nullptr, 0.0f);

  1830.         }

  1831.     }

  1832. 

  1833.     void sampleRateChanged(const double newSampleRate) override

  1834.     {

  1835.         CARLA_ASSERT_INT(newSampleRate > 0.0, (int)newSampleRate);

  1836.         carla_debug("NativePlugin::sampleRateChanged(%g)", newSampleRate);

  1837. 

  1838.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1839.         {

  1840.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  1841. 

  1842.             if (fHandle2 != nullptr)

  1843.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, float(newSampleRate));

  1844.         }

  1845.     }

  1846. 

  1847.     void offlineModeChanged(const bool isOffline) override

  1848.     {

  1849.         if (fDescriptor != nullptr && fDescriptor->dispatcher != nullptr)

  1850.         {

  1851.             fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  1852. 

  1853.             if (fHandle2 != nullptr)

  1854.                 fDescriptor->dispatcher(fHandle2, PLUGIN_OPCODE_OFFLINE_CHANGED, 0, isOffline ? 1 : 0, nullptr, 0.0f);

  1855.         }

  1856.     }

  1857. 

  1858.     // -------------------------------------------------------------------

  1859.     // Plugin buffers

  1860. 

  1861.     void initBuffers() override

  1862.     {

  1863.         fMidiIn.initBuffers();

  1864.         fMidiOut.initBuffers();

  1865. 

  1866.         CarlaPlugin::initBuffers();

  1867.     }

  1868. 

  1869.     void clearBuffers() override

  1870.     {

  1871.         carla_debug("NativePlugin::clearBuffers() - start");

  1872. 

  1873.         if (fAudioInBuffers != nullptr)

  1874.         {

  1875.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1876.             {

  1877.                 if (fAudioInBuffers[i] != nullptr)

  1878.                 {

  1879.                     delete[] fAudioInBuffers[i];

  1880.                     fAudioInBuffers[i] = nullptr;

  1881.                 }

  1882.             }

  1883. 

  1884.             delete[] fAudioInBuffers;

  1885.             fAudioInBuffers = nullptr;

  1886.         }

  1887. 

  1888.         if (fAudioOutBuffers != nullptr)

  1889.         {

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

  1891.             {

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

  1893.                 {

  1894.                     delete[] fAudioOutBuffers[i];

  1895.                     fAudioOutBuffers[i] = nullptr;

  1896.                 }

  1897.             }

  1898. 

  1899.             delete[] fAudioOutBuffers;

  1900.             fAudioOutBuffers = nullptr;

  1901.         }

  1902. 

  1903.         fMidiIn.clear();

  1904.         fMidiOut.clear();

  1905. 

  1906.         CarlaPlugin::clearBuffers();

  1907. 

  1908.         carla_debug("NativePlugin::clearBuffers() - end");

  1909.     }

  1910. 

  1911.     // -------------------------------------------------------------------

  1912.     // Post-poned UI Stuff

  1913. 

  1914.     void uiParameterChange(const uint32_t index, const float value) override

  1915.     {

  1916.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1917.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1918.         CARLA_ASSERT(index < pData->param.count);

  1919. 

  1920.         if (! fIsUiVisible)

  1921.             return;

  1922.         if (fDescriptor == nullptr || fHandle == nullptr)

  1923.             return;

  1924.         if (index >= pData->param.count)

  1925.             return;

  1926. 

  1927.         if (fDescriptor->ui_set_parameter_value != nullptr)

  1928.             fDescriptor->ui_set_parameter_value(fHandle, index, value);

  1929.     }

  1930. 

  1931.     void uiMidiProgramChange(const uint32_t index) override

  1932.     {

  1933.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1934.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1935.         CARLA_ASSERT(index < pData->midiprog.count);

  1936. 

  1937.         if (! fIsUiVisible)

  1938.             return;

  1939.         if (fDescriptor == nullptr || fHandle == nullptr)

  1940.             return;

  1941.         if (index >= pData->midiprog.count)

  1942.             return;

  1943. 

  1944.         if (fDescriptor->ui_set_midi_program != nullptr) // TODO

  1945.             fDescriptor->ui_set_midi_program(fHandle, 0, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  1946.     }

  1947. 

  1948.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) override

  1949.     {

  1950.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1951.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1952.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1953.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1954.         CARLA_ASSERT(velo > 0 && velo < MAX_MIDI_VALUE);

  1955. 

  1956.         if (! fIsUiVisible)

  1957.             return;

  1958.         if (fDescriptor == nullptr || fHandle == nullptr)

  1959.             return;

  1960.         if (channel >= MAX_MIDI_CHANNELS)

  1961.             return;

  1962.         if (note >= MAX_MIDI_NOTE)

  1963.             return;

  1964.         if (velo >= MAX_MIDI_VALUE)

  1965.             return;

  1966. 

  1967.         // TODO

  1968.     }

  1969. 

  1970.     void uiNoteOff(const uint8_t channel, const uint8_t note) override

  1971.     {

  1972.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1973.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1974.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1975.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1976. 

  1977.         if (! fIsUiVisible)

  1978.             return;

  1979.         if (fDescriptor == nullptr || fHandle == nullptr)

  1980.             return;

  1981.         if (channel >= MAX_MIDI_CHANNELS)

  1982.             return;

  1983.         if (note >= MAX_MIDI_NOTE)

  1984.             return;

  1985. 

  1986.         // TODO

  1987.     }

  1988. 

  1989.     // -------------------------------------------------------------------

  1990. 

  1991. protected:

  1992.     uint32_t handleGetBufferSize() const

  1993.     {

  1994.         return pData->engine->getBufferSize();

  1995.     }

  1996. 

  1997.     double handleGetSampleRate() const

  1998.     {

  1999.         return pData->engine->getSampleRate();

  2000.     }

  2001. 

  2002.     bool handleIsOffline() const

  2003.     {

  2004.         return pData->engine->isOffline();

  2005.     }

  2006. 

  2007.     const NativeTimeInfo* handleGetTimeInfo() const

  2008.     {

  2009.         CARLA_SAFE_ASSERT_RETURN(fIsProcessing, nullptr);

  2010. 

  2011.         return &fTimeInfo;

  2012.     }

  2013. 

  2014.     bool handleWriteMidiEvent(const NativeMidiEvent* const event)

  2015.     {

  2016.         CARLA_ASSERT(pData->enabled);

  2017.         CARLA_ASSERT(fIsProcessing);

  2018.         CARLA_ASSERT(fMidiOut.count > 0 || pData->event.portOut != nullptr);

  2019.         CARLA_ASSERT(event != nullptr);

  2020.         CARLA_ASSERT(event->data[0] != 0);

  2021. 

  2022.         if (! pData->enabled)

  2023.             return false;

  2024.         if (fMidiOut.count == 0)

  2025.             return false;

  2026.         if (event == nullptr)

  2027.             return false;

  2028.         if (event->data[0] == 0)

  2029.             return false;

  2030.         if (! fIsProcessing)

  2031.         {

  2032.             carla_stderr2("NativePlugin::handleWriteMidiEvent(%p) - received MIDI out event outside audio thread, ignoring", event);

  2033.             return false;

  2034.         }

  2035. 

  2036.         // reverse-find first free event, and put it there

  2037.         for (uint32_t i=(kPluginMaxMidiEvents*2)-1; i > fMidiEventCount; --i)

  2038.         {

  2039.             if (fMidiEvents[i].data[0] == 0)

  2040.             {

  2041.                 std::memcpy(&fMidiEvents[i], event, sizeof(NativeMidiEvent));

  2042.                 return true;

  2043.             }

  2044.         }

  2045. 

  2046.         return false;

  2047.     }

  2048. 

  2049.     void handleUiParameterChanged(const uint32_t index, const float value)

  2050.     {

  2051.         setParameterValue(index, value, false, true, true);

  2052.     }

  2053. 

  2054.     void handleUiCustomDataChanged(const char* const key, const char* const value)

  2055.     {

  2056.         setCustomData(CUSTOM_DATA_TYPE_STRING, key, value, false);

  2057.     }

  2058. 

  2059.     void handleUiClosed()

  2060.     {

  2061.         pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0.0f, nullptr);

  2062.         fIsUiVisible = false;

  2063.     }

  2064. 

  2065.     const char* handleUiOpenFile(const bool isDir, const char* const title, const char* const filter)

  2066.     {

  2067.         return carla_file_callback(FILE_CALLBACK_OPEN, isDir, title, filter);

  2068.     }

  2069. 

  2070.     const char* handleUiSaveFile(const bool isDir, const char* const title, const char* const filter)

  2071.     {

  2072.         return carla_file_callback(FILE_CALLBACK_SAVE, isDir, title, filter);

  2073.     }

  2074. 

  2075.     intptr_t handleDispatcher(const NativeHostDispatcherOpcode opcode, const int32_t index, const intptr_t value, void* const ptr, const float opt)

  2076.     {

  2077.         carla_debug("NativePlugin::handleDispatcher(%i, %i, " P_INTPTR ", %p, %f)", opcode, index, value, ptr, opt);

  2078. 

  2079.         intptr_t ret = 0;

  2080. 

  2081.         switch (opcode)

  2082.         {

  2083.         case ::HOST_OPCODE_NULL:

  2084.             break;

  2085. #ifdef BUILD_BRIDGE

  2086.         case ::HOST_OPCODE_SET_VOLUME:

  2087.         case ::HOST_OPCODE_SET_DRYWET:

  2088.         case ::HOST_OPCODE_SET_BALANCE_LEFT:

  2089.         case ::HOST_OPCODE_SET_BALANCE_RIGHT:

  2090.         case ::HOST_OPCODE_SET_PANNING:

  2091.             break;

  2092. #else

  2093.         case ::HOST_OPCODE_SET_VOLUME:

  2094.             setVolume(opt, true, true);

  2095.             break;

  2096.         case ::HOST_OPCODE_SET_DRYWET:

  2097.             setDryWet(opt, true, true);

  2098.             break;

  2099.         case ::HOST_OPCODE_SET_BALANCE_LEFT:

  2100.             setBalanceLeft(opt, true, true);

  2101.             break;

  2102.         case ::HOST_OPCODE_SET_BALANCE_RIGHT:

  2103.             setBalanceRight(opt, true, true);

  2104.             break;

  2105.         case ::HOST_OPCODE_SET_PANNING:

  2106.             setPanning(opt, true, true);

  2107.             break;

  2108. #endif

  2109.         case HOST_OPCODE_GET_PARAMETER_MIDI_CC:

  2110.         case HOST_OPCODE_SET_PARAMETER_MIDI_CC:

  2111.             // TODO

  2112.             break;

  2113.         case ::HOST_OPCODE_SET_PROCESS_PRECISION:

  2114.             // TODO

  2115.             break;

  2116.         case ::HOST_OPCODE_UPDATE_PARAMETER:

  2117.             // TODO

  2118.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2119.             break;

  2120.         case ::HOST_OPCODE_UPDATE_MIDI_PROGRAM:

  2121.             // TODO

  2122.             pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0.0f, nullptr);

  2123.             break;

  2124.         case ::HOST_OPCODE_RELOAD_PARAMETERS:

  2125.             reload(); // FIXME

  2126.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PARAMETERS, pData->id, -1, 0, 0.0f, nullptr);

  2127.             break;

  2128.         case ::HOST_OPCODE_RELOAD_MIDI_PROGRAMS:

  2129.             reloadPrograms(false);

  2130.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, -1, 0, 0.0f, nullptr);

  2131.             break;

  2132.         case ::HOST_OPCODE_RELOAD_ALL:

  2133.             reload();

  2134.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_ALL, pData->id, -1, 0, 0.0f, nullptr);

  2135.             break;

  2136.         case HOST_OPCODE_UI_UNAVAILABLE:

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

  2138.             break;

  2139.         }

  2140. 

  2141.         return ret;

  2142. 

  2143.         // unused for now

  2144.         (void)index;

  2145.         (void)value;

  2146.         (void)ptr;

  2147.     }

  2148. 

  2149.     // -------------------------------------------------------------------

  2150. 

  2151. public:

  2152.     static size_t getPluginCount()

  2153.     {

  2154.         return sPluginDescriptors.count();

  2155.     }

  2156. 

  2157.     static const NativePluginDescriptor* getPluginDescriptor(const size_t index)

  2158.     {

  2159.         CARLA_ASSERT(index < sPluginDescriptors.count());

  2160. 

  2161.         if (index < sPluginDescriptors.count())

  2162.             return sPluginDescriptors.getAt(index);

  2163. 

  2164.         return nullptr;

  2165.     }

  2166. 

  2167.     static void registerPlugin(const NativePluginDescriptor* desc)

  2168.     {

  2169.         sPluginDescriptors.append(desc);

  2170.     }

  2171. 

  2172.     // -------------------------------------------------------------------

  2173. 

  2174.     bool init(const char* const name, const char* const label)

  2175.     {

  2176.         // ---------------------------------------------------------------

  2177.         // first checks

  2178. 

  2179.         if (pData->engine == nullptr)

  2180.         {

  2181.             return false;

  2182.         }

  2183. 

  2184.         if (pData->client != nullptr)

  2185.         {

  2186.             pData->engine->setLastError("Plugin client is already registered");

  2187.             return false;

  2188.         }

  2189. 

  2190.         if (label == nullptr && label[0] != '\0')

  2191.         {

  2192.             pData->engine->setLastError("null label");

  2193.             return false;

  2194.         }

  2195. 

  2196.         // ---------------------------------------------------------------

  2197.         // get descriptor that matches label

  2198. 

  2199.         for (List<const NativePluginDescriptor*>::Itenerator it = sPluginDescriptors.begin(); it.valid(); it.next())

  2200.         {

  2201.             fDescriptor = it.getConstValue();

  2202. 

  2203.             CARLA_SAFE_ASSERT_BREAK(fDescriptor != nullptr);

  2204. 

  2205.             if (fDescriptor->label != nullptr && std::strcmp(fDescriptor->label, label) == 0)

  2206.                 break;

  2207. 

  2208.             fDescriptor = nullptr;

  2209.         }

  2210. 

  2211.         if (fDescriptor == nullptr)

  2212.         {

  2213.             pData->engine->setLastError("Invalid internal plugin");

  2214.             return false;

  2215.         }

  2216. 

  2217.         // ---------------------------------------------------------------

  2218.         // set icon

  2219. 

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

  2221.             pData->iconName = carla_strdup("file");

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

  2223.             pData->iconName = carla_strdup("file");

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

  2225.             pData->iconName = carla_strdup("file");

  2226. 

  2227.         else if (std::strcmp(fDescriptor->label, "3BandEQ") == 0)

  2228.             pData->iconName = carla_strdup("distrho");

  2229.         else if (std::strcmp(fDescriptor->label, "3BandSplitter") == 0)

  2230.             pData->iconName = carla_strdup("distrho");

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

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

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

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

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

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

  2237.         else if (std::strcmp(fDescriptor->label, "StereoEnhancer") == 0)

  2238.             pData->iconName = carla_strdup("distrho");

  2239. 

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

  2241.         // get info

  2242. 

  2243.         if (name != nullptr)

  2244.             pData->name = pData->engine->getUniquePluginName(name);

  2245.         else if (fDescriptor->name != nullptr)

  2246.             pData->name = pData->engine->getUniquePluginName(fDescriptor->name);

  2247.         else

  2248.             pData->name = pData->engine->getUniquePluginName(label);

  2249. 

  2250.         {

  2251.             CARLA_ASSERT(fHost.uiName == nullptr);

  2252. 

  2253.             char uiName[std::strlen(pData->name)+6+1];

  2254.             std::strcpy(uiName, pData->name);

  2255.             std::strcat(uiName, " (GUI)");

  2256. 

  2257.             fHost.uiName = carla_strdup(uiName);

  2258.         }

  2259. 

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

  2261.         // register client

  2262. 

  2263.         pData->client = pData->engine->addClient(this);

  2264. 

  2265.         if (pData->client == nullptr || ! pData->client->isOk())

  2266.         {

  2267.             pData->engine->setLastError("Failed to register plugin client");

  2268.             return false;

  2269.         }

  2270. 

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

  2272.         // initialize plugin

  2273. 

  2274.         fHandle = fDescriptor->instantiate(&fHost);

  2275. 

  2276.         if (fHandle == nullptr)

  2277.         {

  2278.             pData->engine->setLastError("Plugin failed to initialize");

  2279.             return false;

  2280.         }

  2281. 

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

  2283.         // load plugin settings

  2284. 

  2285.         {

  2286.             const bool hasMidiProgs(fDescriptor->get_midi_program_count != nullptr && fDescriptor->get_midi_program_count(fHandle) > 0);

  2287. 

  2288.             // set default options

  2289.             pData->options = 0x0;

  2290. 

  2291.             if (hasMidiProgs && (fDescriptor->supports & ::PLUGIN_SUPPORTS_PROGRAM_CHANGES) == 0)

  2292.                 pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  2293. 

  2294.             if (getMidiInCount() > 0 || (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS) != 0)

  2295.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2296. 

  2297.             if (pData->engine->getOptions().forceStereo)

  2298.                 pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2299. 

  2300.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_CHANNEL_PRESSURE)

  2301.                 pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  2302.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_NOTE_AFTERTOUCH)

  2303.                 pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  2304.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_PITCHBEND)

  2305.                 pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  2306.             if (fDescriptor->supports & ::PLUGIN_SUPPORTS_ALL_SOUND_OFF)

  2307.                 pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  2308. 

  2309.             // set identifier string

  2310.             CarlaString identifier("Native/");

  2311.             identifier += label;

  2312.             pData->identifier = identifier.dup();

  2313. 

  2314.             // load settings

  2315.             pData->options = pData->loadSettings(pData->options, getOptionsAvailable());

  2316. 

  2317.             // ignore settings, we need this anyway

  2318.             if (getMidiInCount() > 0 || (fDescriptor->hints & ::PLUGIN_NEEDS_FIXED_BUFFERS) != 0)

  2319.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2320.         }

  2321. 

  2322.         return true;

  2323.     }

  2324. 

  2325.     class ScopedInitializer

  2326.     {

  2327.     public:

  2328.         ScopedInitializer()

  2329.         {

  2330.             carla_register_all_plugins();

  2331.         }

  2332. 

  2333.         ~ScopedInitializer()

  2334.         {

  2335.             sPluginDescriptors.clear();

  2336.         }

  2337.     };

  2338. 

  2339. private:

  2340.     NativePluginHandle   fHandle;

  2341.     NativePluginHandle   fHandle2;

  2342.     NativeHostDescriptor fHost;

  2343.     const NativePluginDescriptor* fDescriptor;

  2344. 

  2345.     bool fIsProcessing;

  2346.     bool fIsUiVisible;

  2347. 

  2348.     float**         fAudioInBuffers;

  2349.     float**         fAudioOutBuffers;

  2350.     uint32_t        fMidiEventCount;

  2351.     NativeMidiEvent fMidiEvents[kPluginMaxMidiEvents*2];

  2352. 

  2353.     int32_t fCurMidiProgs[MAX_MIDI_CHANNELS];

  2354. 

  2355.     NativePluginMidiData fMidiIn;

  2356.     NativePluginMidiData fMidiOut;

  2357. 

  2358.     NativeTimeInfo fTimeInfo;

  2359. 

  2360.     static List<const NativePluginDescriptor*> sPluginDescriptors;

  2361. 

  2362.     // -------------------------------------------------------------------

  2363. 

  2364.     #define handlePtr ((NativePlugin*)handle)

  2365. 

  2366.     static uint32_t carla_host_get_buffer_size(NativeHostHandle handle)

  2367.     {

  2368.         return handlePtr->handleGetBufferSize();

  2369.     }

  2370. 

  2371.     static double carla_host_get_sample_rate(NativeHostHandle handle)

  2372.     {

  2373.         return handlePtr->handleGetSampleRate();

  2374.     }

  2375. 

  2376.     static bool carla_host_is_offline(NativeHostHandle handle)

  2377.     {

  2378.         return handlePtr->handleIsOffline();

  2379.     }

  2380. 

  2381.     static const NativeTimeInfo* carla_host_get_time_info(NativeHostHandle handle)

  2382.     {

  2383.         return handlePtr->handleGetTimeInfo();

  2384.     }

  2385. 

  2386.     static bool carla_host_write_midi_event(NativeHostHandle handle, const NativeMidiEvent* event)

  2387.     {

  2388.         return handlePtr->handleWriteMidiEvent(event);

  2389.     }

  2390. 

  2391.     static void carla_host_ui_parameter_changed(NativeHostHandle handle, uint32_t index, float value)

  2392.     {

  2393.         handlePtr->handleUiParameterChanged(index, value);

  2394.     }

  2395. 

  2396.     static void carla_host_ui_custom_data_changed(NativeHostHandle handle, const char* key, const char* value)

  2397.     {

  2398.         handlePtr->handleUiCustomDataChanged(key, value);

  2399.     }

  2400. 

  2401.     static void carla_host_ui_closed(NativeHostHandle handle)

  2402.     {

  2403.         handlePtr->handleUiClosed();

  2404.     }

  2405. 

  2406.     static const char* carla_host_ui_open_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2407.     {

  2408.         return handlePtr->handleUiOpenFile(isDir, title, filter);

  2409.     }

  2410. 

  2411.     static const char* carla_host_ui_save_file(NativeHostHandle handle, bool isDir, const char* title, const char* filter)

  2412.     {

  2413.         return handlePtr->handleUiSaveFile(isDir, title, filter);

  2414.     }

  2415. 

  2416.     static intptr_t carla_host_dispatcher(NativeHostHandle handle, NativeHostDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  2417.     {

  2418.         return handlePtr->handleDispatcher(opcode, index, value, ptr, opt);

  2419.     }

  2420. 

  2421.     #undef handlePtr

  2422. 

  2423.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(NativePlugin)

  2424. };

  2425. 

  2426. List<const NativePluginDescriptor*> NativePlugin::sPluginDescriptors;

  2427. 

  2428. static const NativePlugin::ScopedInitializer _si;

  2429. 

  2430. CARLA_BACKEND_END_NAMESPACE

  2431. 

  2432. void carla_register_native_plugin(const NativePluginDescriptor* desc)

  2433. {

  2434.     CARLA_BACKEND_USE_NAMESPACE

  2435.     NativePlugin::registerPlugin(desc);

  2436. }

  2437. 

  2438. #endif // WANT_NATIVE

  2439. 

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

  2441. 

  2442. CARLA_BACKEND_START_NAMESPACE

  2443. 

  2444. #ifdef WANT_NATIVE

  2445. size_t CarlaPlugin::getNativePluginCount()

  2446. {

  2447.     return NativePlugin::getPluginCount();

  2448. }

  2449. 

  2450. const NativePluginDescriptor* CarlaPlugin::getNativePluginDescriptor(const size_t index)

  2451. {

  2452.     return NativePlugin::getPluginDescriptor(index);

  2453. }

  2454. #endif

  2455. 

  2456. // -----------------------------------------------------------------------

  2457. 

  2458. CarlaPlugin* CarlaPlugin::newNative(const Initializer& init)

  2459. {

  2460.     carla_debug("CarlaPlugin::newNative({%p, \"%s\", \"%s\", \"%s\"})", init.engine, init.filename, init.name, init.label);

  2461. 

  2462. #ifdef WANT_NATIVE

  2463.     NativePlugin* const plugin(new NativePlugin(init.engine, init.id));

  2464. 

  2465.     if (! plugin->init(init.name, init.label))

  2466.     {

  2467.         delete plugin;

  2468.         return nullptr;

  2469.     }

  2470. 

  2471.     plugin->reload();

  2472. 

  2473.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && ! plugin->canRunInRack())

  2474.     {

  2475.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo Internal plugins, sorry!");

  2476.         delete plugin;

  2477.         return nullptr;

  2478.     }

  2479. 

  2480.     return plugin;

  2481. #else

  2482.     init.engine->setLastError("Internal plugins support not available");

  2483.     return nullptr;

  2484. #endif

  2485. }

  2486. 

  2487. CARLA_BACKEND_END_NAMESPACE

  2488. 

  2489. // -----------------------------------------------------------------------