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

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  1. /*

  2.  * Carla Plugin Host

  3.  * Copyright (C) 2011-2014 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 "CarlaDefines.h"

  19. 

  20. #ifdef BUILD_BRIDGE

  21. # error This file should not be compiled if building bridge

  22. #endif

  23. 

  24. #include "CarlaEngineInternal.hpp"

  25. #include "CarlaPlugin.hpp"

  26. 

  27. #include "CarlaBackendUtils.hpp"

  28. #include "CarlaBase64Utils.hpp"

  29. #include "CarlaBinaryUtils.hpp"

  30. #include "CarlaMathUtils.hpp"

  31. #include "CarlaStateUtils.hpp"

  32. 

  33. #include "CarlaExternalUI.hpp"

  34. #include "CarlaHost.h"

  35. #include "CarlaNative.hpp"

  36. 

  37. #include "juce_audio_basics.h"

  38. 

  39. #if defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN)

  40. # include "juce_gui_basics.h"

  41. #else

  42. namespace juce {

  43. # include "juce_events/messages/juce_Initialisation.h"

  44. } // namespace juce

  45. #endif

  46. 

  47. using juce::File;

  48. using juce::FloatVectorOperations;

  49. using juce::MemoryOutputStream;

  50. using juce::ScopedPointer;

  51. using juce::String;

  52. using juce::XmlDocument;

  53. using juce::XmlElement;

  54. 

  55. static bool gNeedsJuceHandling = false;

  56. static int  gJuceReferenceCounter = 0;

  57. 

  58. CARLA_BACKEND_START_NAMESPACE

  59. 

  60. // -----------------------------------------------------------------------

  61. 

  62. class CarlaEngineNativeUI : public CarlaExternalUI

  63. {

  64. public:

  65.     CarlaEngineNativeUI(CarlaEngine* const engine)

  66.         : fEngine(engine)

  67.     {

  68.         carla_debug("CarlaEngineNativeUI::CarlaEngineNativeUI(%p)", engine);

  69.     }

  70. 

  71.     ~CarlaEngineNativeUI() noexcept override

  72.     {

  73.         carla_debug("CarlaEngineNativeUI::~CarlaEngineNativeUI()");

  74.     }

  75. 

  76. protected:

  77.     bool msgReceived(const char* const msg) noexcept override

  78.     {

  79.         if (CarlaExternalUI::msgReceived(msg))

  80.             return true;

  81. 

  82.         bool ok = true;

  83. 

  84.         if (std::strcmp(msg, "set_engine_option") == 0)

  85.         {

  86.             uint32_t option;

  87.             int32_t value;

  88.             const char* valueStr = nullptr;

  89. 

  90.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(option), true);

  91.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(value), true);

  92.             readNextLineAsString(valueStr); // can be null

  93. 

  94.             try {

  95.                 fEngine->setOption(static_cast<EngineOption>(option), value, valueStr);

  96.             } CARLA_SAFE_EXCEPTION("setOption");

  97. 

  98.             if (valueStr != nullptr)

  99.                 delete[] valueStr;

  100.         }

  101.         else if (std::strcmp(msg, "load_file") == 0)

  102.         {

  103.             const char* filename;

  104. 

  105.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);

  106. 

  107.             try {

  108.                 ok = fEngine->loadFile(filename);

  109.             } CARLA_SAFE_EXCEPTION("loadFile");

  110. 

  111.             delete[] filename;

  112.         }

  113.         else if (std::strcmp(msg, "load_project") == 0)

  114.         {

  115.             const char* filename;

  116. 

  117.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);

  118. 

  119.             try {

  120.                 ok = fEngine->loadProject(filename);

  121.             } CARLA_SAFE_EXCEPTION("loadProject");

  122. 

  123.             delete[] filename;

  124.         }

  125.         else if (std::strcmp(msg, "save_project") == 0)

  126.         {

  127.             const char* filename;

  128. 

  129.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);

  130. 

  131.             try {

  132.                 ok = fEngine->saveProject(filename);

  133.             } CARLA_SAFE_EXCEPTION("saveProject");

  134. 

  135.             delete[] filename;

  136.         }

  137.         else if (std::strcmp(msg, "patchbay_connect") == 0)

  138.         {

  139.             uint32_t groupA, portA, groupB, portB;

  140. 

  141.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(groupA), true);

  142.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(portA), true);

  143.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(groupB), true);

  144.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(portB), true);

  145. 

  146.             try {

  147.                 ok = fEngine->patchbayConnect(groupA, portA, groupB, portB);

  148.             } CARLA_SAFE_EXCEPTION("patchbayConnect");

  149.         }

  150.         else if (std::strcmp(msg, "patchbay_disconnect") == 0)

  151.         {

  152.             uint32_t connectionId;

  153. 

  154.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(connectionId), true);

  155. 

  156.             try {

  157.                 ok = fEngine->patchbayDisconnect(connectionId);

  158.             } CARLA_SAFE_EXCEPTION("patchbayDisconnect");

  159.         }

  160.         else if (std::strcmp(msg, "patchbay_refresh") == 0)

  161.         {

  162.             try {

  163.                 ok = fEngine->patchbayRefresh(false);

  164.             } CARLA_SAFE_EXCEPTION("patchbayRefresh");

  165.         }

  166.         else if (std::strcmp(msg, "transport_play") == 0)

  167.         {

  168.             fEngine->transportPlay();

  169.         }

  170.         else if (std::strcmp(msg, "transport_pause") == 0)

  171.         {

  172.             fEngine->transportPause();

  173.         }

  174.         else if (std::strcmp(msg, "transport_relocate") == 0)

  175.         {

  176.             uint64_t frame;

  177. 

  178.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsULong(frame), true);

  179. 

  180.             fEngine->transportRelocate(frame);

  181.         }

  182.         else if (std::strcmp(msg, "add_plugin") == 0)

  183.         {

  184.             uint32_t btype, ptype;

  185.             const char* filename = nullptr;

  186.             const char* name;

  187.             const char* label;

  188.             int64_t uniqueId;

  189.             uint options;

  190. 

  191.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(btype), true);

  192.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(ptype), true);

  193.             readNextLineAsString(filename); // can be null

  194.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(name), true);

  195.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(label), true);

  196.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsLong(uniqueId), true);

  197.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(options), true);

  198. 

  199.             if (filename != nullptr && std::strcmp(filename, "(null)") == 0)

  200.             {

  201.                 delete[] filename;

  202.                 filename = nullptr;

  203.             }

  204. 

  205.             if (std::strcmp(name, "(null)") == 0)

  206.             {

  207.                 delete[] name;

  208.                 name = nullptr;

  209.             }

  210. 

  211.             ok = fEngine->addPlugin(static_cast<BinaryType>(btype), static_cast<PluginType>(ptype),

  212.                                     filename, name, label, uniqueId, nullptr, options);

  213. 

  214.             if (filename != nullptr)

  215.                 delete[] filename;

  216.             if (name != nullptr)

  217.                 delete[] name;

  218.             delete[] label;

  219.         }

  220.         else if (std::strcmp(msg, "remove_plugin") == 0)

  221.         {

  222.             uint32_t pluginId;

  223. 

  224.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  225. 

  226.             ok = fEngine->removePlugin(pluginId);

  227.         }

  228.         else if (std::strcmp(msg, "remove_all_plugins") == 0)

  229.         {

  230.             ok = fEngine->removeAllPlugins();

  231.         }

  232.         else if (std::strcmp(msg, "rename_plugin") == 0)

  233.         {

  234.             uint32_t pluginId;

  235.             const char* newName;

  236. 

  237.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  238.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(newName), true);

  239. 

  240.             // TODO

  241.             /*const char* name =*/ fEngine->renamePlugin(pluginId, newName);

  242. 

  243.             delete[] newName;

  244.         }

  245.         else if (std::strcmp(msg, "clone_plugin") == 0)

  246.         {

  247.             uint32_t pluginId;

  248. 

  249.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  250. 

  251.             ok = fEngine->clonePlugin(pluginId);

  252.         }

  253.         else if (std::strcmp(msg, "replace_plugin") == 0)

  254.         {

  255.             uint32_t pluginId;

  256. 

  257.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  258. 

  259.             ok = fEngine->replacePlugin(pluginId);

  260.         }

  261.         else if (std::strcmp(msg, "switch_plugins") == 0)

  262.         {

  263.             uint32_t pluginIdA, pluginIdB;

  264. 

  265.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginIdA), true);

  266.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginIdB), true);

  267. 

  268.             ok = fEngine->switchPlugins(pluginIdA, pluginIdB);

  269.         }

  270.         else if (std::strcmp(msg, "load_plugin_state") == 0)

  271.         {

  272.             uint32_t pluginId;

  273.             const char* filename;

  274. 

  275.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  276.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);

  277. 

  278.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  279.                 plugin->loadStateFromFile(filename);

  280. 

  281.             delete[] filename;

  282.         }

  283.         else if (std::strcmp(msg, "save_plugin_state") == 0)

  284.         {

  285.             uint32_t pluginId;

  286.             const char* filename;

  287. 

  288.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  289.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);

  290. 

  291.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  292.                 plugin->saveStateToFile(filename);

  293. 

  294.             delete[] filename;

  295.         }

  296.         else if (std::strcmp(msg, "set_option") == 0)

  297.         {

  298.             uint32_t pluginId, option;

  299.             bool yesNo;

  300. 

  301.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  302.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(option), true);

  303.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(yesNo), true);

  304. 

  305.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  306.                 plugin->setOption(option, yesNo, false);

  307.         }

  308.         else if (std::strcmp(msg, "set_active") == 0)

  309.         {

  310.             uint32_t pluginId;

  311.             bool onOff;

  312. 

  313.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  314.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(onOff), true);

  315. 

  316.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  317.                 plugin->setActive(onOff, true, false);

  318.         }

  319.         else if (std::strcmp(msg, "set_drywet") == 0)

  320.         {

  321.             uint32_t pluginId;

  322.             float value;

  323. 

  324.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  325.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  326. 

  327.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  328.                 plugin->setDryWet(value, true, false);

  329.         }

  330.         else if (std::strcmp(msg, "set_volume") == 0)

  331.         {

  332.             uint32_t pluginId;

  333.             float value;

  334. 

  335.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  336.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  337. 

  338.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  339.                 plugin->setVolume(value, true, false);

  340.         }

  341.         else if (std::strcmp(msg, "set_balance_left") == 0)

  342.         {

  343.             uint32_t pluginId;

  344.             float value;

  345. 

  346.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  347.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  348. 

  349.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  350.                 plugin->setBalanceLeft(value, true, false);

  351.         }

  352.         else if (std::strcmp(msg, "set_balance_right") == 0)

  353.         {

  354.             uint32_t pluginId;

  355.             float value;

  356. 

  357.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  358.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  359. 

  360.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  361.                 plugin->setBalanceRight(value, true, false);

  362.         }

  363.         else if (std::strcmp(msg, "set_panning") == 0)

  364.         {

  365.             uint32_t pluginId;

  366.             float value;

  367. 

  368.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  369.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  370. 

  371.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  372.                 plugin->setPanning(value, true, false);

  373.         }

  374.         else if (std::strcmp(msg, "set_ctrl_channel") == 0)

  375.         {

  376.             uint32_t pluginId;

  377.             int32_t channel;

  378. 

  379.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  380.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(channel), true);

  381.             CARLA_SAFE_ASSERT_RETURN(channel >= -1 && channel < MAX_MIDI_CHANNELS, true);

  382. 

  383.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  384.                 plugin->setCtrlChannel(int8_t(channel), true, false);

  385.         }

  386.         else if (std::strcmp(msg, "set_parameter_value") == 0)

  387.         {

  388.             uint32_t pluginId, parameterId;

  389.             float value;

  390. 

  391.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  392.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(parameterId), true);

  393.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  394. 

  395.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  396.                 plugin->setParameterValue(parameterId, value, true, true, false);

  397.         }

  398.         else if (std::strcmp(msg, "set_parameter_midi_channel") == 0)

  399.         {

  400.             uint32_t pluginId, parameterId, channel;

  401. 

  402.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  403.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(parameterId), true);

  404.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(channel), true);

  405.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  406. 

  407.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  408.                 plugin->setParameterMidiChannel(parameterId, static_cast<uint8_t>(channel), true, false);

  409.         }

  410.         else if (std::strcmp(msg, "set_parameter_midi_cc") == 0)

  411.         {

  412.             uint32_t pluginId, parameterId;

  413.             int32_t cc;

  414. 

  415.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  416.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(parameterId), true);

  417.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(cc), true);

  418.             CARLA_SAFE_ASSERT_RETURN(cc >= -1 && cc < MAX_MIDI_CONTROL, true);

  419. 

  420.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  421.                 plugin->setParameterMidiCC(parameterId, static_cast<int16_t>(cc), true, false);

  422.         }

  423.         else if (std::strcmp(msg, "set_program") == 0)

  424.         {

  425.             uint32_t pluginId;

  426.             int32_t index;

  427. 

  428.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  429.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(index), true);

  430. 

  431.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  432.             {

  433.                 plugin->setProgram(index, true, true, false);

  434.                 _updateParamValues(plugin, pluginId);

  435.             }

  436.         }

  437.         else if (std::strcmp(msg, "set_midi_program") == 0)

  438.         {

  439.             uint32_t pluginId;

  440.             int32_t index;

  441. 

  442.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  443.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(index), true);

  444. 

  445.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  446.             {

  447.                 plugin->setMidiProgram(index, true, true, false);

  448.                 _updateParamValues(plugin, pluginId);

  449.             }

  450.         }

  451.         else if (std::strcmp(msg, "set_custom_data") == 0)

  452.         {

  453.             uint32_t pluginId;

  454.             const char* type;

  455.             const char* key;

  456.             const char* value;

  457. 

  458.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  459.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(type), true);

  460.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(key), true);

  461.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(value), true);

  462. 

  463.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  464.                 plugin->setCustomData(type, key, value, true);

  465. 

  466.             delete[] type;

  467.             delete[] key;

  468.             delete[] value;

  469.         }

  470.         else if (std::strcmp(msg, "set_chunk_data") == 0)

  471.         {

  472.             uint32_t pluginId;

  473.             const char* cdata;

  474. 

  475.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  476.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(cdata), true);

  477. 

  478.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  479.             {

  480.                 std::vector<uint8_t> chunk(carla_getChunkFromBase64String(cdata));

  481.                 plugin->setChunkData(chunk.data(), chunk.size());

  482.             }

  483. 

  484.             delete[] cdata;

  485.         }

  486.         else if (std::strcmp(msg, "prepare_for_save") == 0)

  487.         {

  488.             uint32_t pluginId;

  489. 

  490.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  491. 

  492.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  493.                 plugin->prepareForSave();

  494.         }

  495.         else if (std::strcmp(msg, "reset_parameters") == 0)

  496.         {

  497.             uint32_t pluginId;

  498. 

  499.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  500. 

  501.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  502.                 plugin->resetParameters();

  503.         }

  504.         else if (std::strcmp(msg, "randomize_parameters") == 0)

  505.         {

  506.             uint32_t pluginId;

  507. 

  508.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  509. 

  510.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  511.                 plugin->randomizeParameters();

  512.         }

  513.         else if (std::strcmp(msg, "send_midi_note") == 0)

  514.         {

  515.             uint32_t pluginId, channel, note, velocity;

  516. 

  517.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  518.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(channel), true);

  519.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(note), true);

  520.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(velocity), true);

  521.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  522.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_VALUE, true);

  523.             CARLA_SAFE_ASSERT_RETURN(velocity < MAX_MIDI_VALUE, true);

  524. 

  525.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  526.                 plugin->sendMidiSingleNote(static_cast<uint8_t>(channel), static_cast<uint8_t>(note), static_cast<uint8_t>(velocity), true, true, false);

  527.         }

  528.         else if (std::strcmp(msg, "show_custom_ui") == 0)

  529.         {

  530.             uint32_t pluginId;

  531.             bool yesNo;

  532. 

  533.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  534.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(yesNo), true);

  535. 

  536.             if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  537.                 plugin->showCustomUI(yesNo);

  538.         }

  539.         else

  540.         {

  541.             carla_stderr("CarlaEngineNativeUI::msgReceived : %s", msg);

  542.             return false;

  543.         }

  544. 

  545.         if (! ok)

  546.         {

  547.             const CarlaMutexLocker cml(getPipeLock());

  548.             writeMessage("error\n", 6);

  549.             writeAndFixMessage(fEngine->getLastError());

  550.             flushMessages();

  551.         }

  552. 

  553.         return true;

  554.     }

  555. 

  556. private:

  557.     CarlaEngine* const fEngine;

  558. 

  559.     void _updateParamValues(CarlaPlugin* const plugin, const uint32_t pluginId) const noexcept

  560.     {

  561.         for (uint32_t i=0, count=plugin->getParameterCount(); i<count; ++i)

  562.             fEngine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED, pluginId, i, 0, plugin->getParameterValue(i), nullptr);

  563.     }

  564. 

  565.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  566. };

  567. 

  568. // -----------------------------------------------------------------------

  569. 

  570. class CarlaEngineNative : public CarlaEngine

  571. {

  572. public:

  573.     CarlaEngineNative(const NativeHostDescriptor* const host, const bool isPatchbay, const uint32_t inChan = 2, uint32_t outChan = 0)

  574.         : CarlaEngine(),

  575.           pHost(host),

  576.           kIsPatchbay(isPatchbay),

  577.           fIsActive(false),

  578.           fIsRunning(false),

  579.           fUiServer(this),

  580.           fOptionsForced(false)

  581.     {

  582.         carla_debug("CarlaEngineNative::CarlaEngineNative()");

  583. 

  584.         CARLA_SAFE_ASSERT_INT(gJuceReferenceCounter >= 0, gJuceReferenceCounter);

  585. 

  586.         if (gNeedsJuceHandling && ++gJuceReferenceCounter == 1)

  587.             juce::initialiseJuce_GUI();

  588. 

  589.         carla_zeroChars(fTmpBuf, STR_MAX+1);

  590. 

  591.         pData->bufferSize = pHost->get_buffer_size(pHost->handle);

  592.         pData->sampleRate = pHost->get_sample_rate(pHost->handle);

  593. 

  594.         if (outChan == 0)

  595.             outChan = inChan;

  596. 

  597.         // set-up engine

  598.         if (kIsPatchbay)

  599.         {

  600.             pData->options.processMode         = ENGINE_PROCESS_MODE_PATCHBAY;

  601.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  602.             pData->options.forceStereo         = false;

  603.             pData->options.preferPluginBridges = false;

  604.             pData->options.preferUiBridges     = false;

  605.             init("Carla-Patchbay");

  606.             pData->graph.create(inChan, outChan);

  607.         }

  608.         else

  609.         {

  610.             CARLA_SAFE_ASSERT(inChan == 2);

  611.             CARLA_SAFE_ASSERT(outChan == 2);

  612.             pData->options.processMode         = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;

  613.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  614.             pData->options.forceStereo         = true;

  615.             pData->options.preferPluginBridges = false;

  616.             pData->options.preferUiBridges     = false;

  617.             init("Carla-Rack");

  618.             pData->graph.create(0, 0);

  619.         }

  620. 

  621.         if (pData->options.resourceDir != nullptr)

  622.             delete[] pData->options.resourceDir;

  623.         if (pData->options.binaryDir != nullptr)

  624.             delete[] pData->options.binaryDir;

  625. 

  626.         pData->options.resourceDir = carla_strdup(pHost->resourceDir);

  627.         pData->options.binaryDir   = carla_strdup(carla_get_library_folder());

  628. 

  629.         setCallback(_ui_server_callback, this);

  630.     }

  631. 

  632.     ~CarlaEngineNative() override

  633.     {

  634.         CARLA_SAFE_ASSERT(! fIsActive);

  635.         carla_debug("CarlaEngineNative::~CarlaEngineNative() - START");

  636. 

  637.         pData->aboutToClose = true;

  638.         fIsRunning = false;

  639. 

  640.         removeAllPlugins();

  641.         //runPendingRtEvents();

  642.         close();

  643. 

  644.         pData->graph.destroy();

  645. 

  646.         if (gNeedsJuceHandling && --gJuceReferenceCounter == 0)

  647.             juce::shutdownJuce_GUI();

  648. 

  649.         carla_debug("CarlaEngineNative::~CarlaEngineNative() - END");

  650.     }

  651. 

  652. protected:

  653.     // -------------------------------------

  654.     // CarlaEngine virtual calls

  655. 

  656.     bool init(const char* const clientName) override

  657.     {

  658.         carla_debug("CarlaEngineNative::init(\"%s\")", clientName);

  659. 

  660.         fIsRunning = true;

  661. 

  662.         if (! pData->init(clientName))

  663.         {

  664.             close();

  665.             setLastError("Failed to init internal data");

  666.             return false;

  667.         }

  668. 

  669.         pData->bufferSize = pHost->get_buffer_size(pHost->handle);

  670.         pData->sampleRate = pHost->get_sample_rate(pHost->handle);

  671. 

  672.         return true;

  673.     }

  674. 

  675.     bool close() override

  676.     {

  677.         fIsRunning = false;

  678.         CarlaEngine::close();

  679.         return true;

  680.     }

  681. 

  682.     bool isRunning() const noexcept override

  683.     {

  684.         return fIsRunning;

  685.     }

  686. 

  687.     bool isOffline() const noexcept override

  688.     {

  689.         return pHost->is_offline(pHost->handle);

  690.     }

  691. 

  692.     EngineType getType() const noexcept override

  693.     {

  694.         return kEngineTypePlugin;

  695.     }

  696. 

  697.     const char* getCurrentDriverName() const noexcept override

  698.     {

  699.         return "Plugin";

  700.     }

  701. 

  702.     void callback(const EngineCallbackOpcode action, const uint pluginId, const int value1, const int value2, const float value3, const char* const valueStr) noexcept override

  703.     {

  704.         CarlaEngine::callback(action, pluginId, value1, value2, value3, valueStr);

  705. 

  706.         if (action == ENGINE_CALLBACK_IDLE && ! pData->aboutToClose)

  707.             pHost->dispatcher(pHost->handle, NATIVE_HOST_OPCODE_HOST_IDLE, 0, 0, nullptr, 0.0f);

  708.     }

  709. 

  710.     // -------------------------------------------------------------------

  711. 

  712.     const char* renamePlugin(const uint id, const char* const newName) override

  713.     {

  714.         if (const char* const retName = CarlaEngine::renamePlugin(id, newName))

  715.         {

  716.             uiServerCallback(ENGINE_CALLBACK_PLUGIN_RENAMED, id, 0, 0, 0.0f, retName);

  717.             return retName;

  718.         }

  719. 

  720.         return nullptr;

  721.     }

  722. 

  723.     // -------------------------------------------------------------------

  724. 

  725.     void bufferSizeChanged(const uint32_t newBufferSize)

  726.     {

  727.         if (pData->bufferSize == newBufferSize)

  728.             return;

  729. 

  730.         {

  731.             const CarlaMutexLocker cml(fUiServer.getPipeLock());

  732. 

  733.             fUiServer.writeAndFixMessage("buffer-size");

  734.             std::sprintf(fTmpBuf, "%i\n", newBufferSize);

  735.             fUiServer.writeMessage(fTmpBuf);

  736.             fUiServer.flushMessages();

  737.         }

  738. 

  739.         pData->bufferSize = newBufferSize;

  740.         CarlaEngine::bufferSizeChanged(newBufferSize);

  741.     }

  742. 

  743.     void sampleRateChanged(const double newSampleRate)

  744.     {

  745.         if (carla_isEqual(pData->sampleRate, newSampleRate))

  746.             return;

  747. 

  748.         {

  749.             const CarlaMutexLocker cml(fUiServer.getPipeLock());

  750.             const ScopedLocale csl;

  751. 

  752.             fUiServer.writeAndFixMessage("sample-rate");

  753.             std::sprintf(fTmpBuf, "%f\n", newSampleRate);

  754.             fUiServer.writeMessage(fTmpBuf);

  755.             fUiServer.flushMessages();

  756.         }

  757. 

  758.         pData->sampleRate = newSampleRate;

  759.         CarlaEngine::sampleRateChanged(newSampleRate);

  760.     }

  761. 

  762.     // -------------------------------------------------------------------

  763. 

  764.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  765.     {

  766.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  767. 

  768.         const uint pluginId(plugin->getId());

  769. 

  770.         std::sprintf(fTmpBuf, "PLUGIN_INFO_%i\n", pluginId);

  771.         fUiServer.writeMessage(fTmpBuf);

  772. 

  773.         std::sprintf(fTmpBuf, "%i:%i:%i:" P_INT64 ":%i:%i\n", plugin->getType(), plugin->getCategory(), plugin->getHints(), plugin->getUniqueId(), plugin->getOptionsAvailable(), plugin->getOptionsEnabled());

  774.         fUiServer.writeMessage(fTmpBuf);

  775. 

  776.         if (const char* const filename = plugin->getFilename())

  777.         {

  778.             std::sprintf(fTmpBuf, "%s", filename);

  779.             fUiServer.writeAndFixMessage(fTmpBuf);

  780.         }

  781.         else

  782.             fUiServer.writeMessage("\n");

  783. 

  784.         if (const char* const name = plugin->getName())

  785.         {

  786.             std::sprintf(fTmpBuf, "%s", name);

  787.             fUiServer.writeAndFixMessage(fTmpBuf);

  788.         }

  789.         else

  790.             fUiServer.writeMessage("\n");

  791. 

  792.         if (const char* const iconName = plugin->getIconName())

  793.         {

  794.             std::sprintf(fTmpBuf, "%s", iconName);

  795.             fUiServer.writeAndFixMessage(fTmpBuf);

  796.         }

  797.         else

  798.             fUiServer.writeMessage("\n");

  799. 

  800.         plugin->getRealName(fTmpBuf);

  801.         fUiServer.writeAndFixMessage(fTmpBuf);

  802. 

  803.         plugin->getLabel(fTmpBuf);

  804.         fUiServer.writeAndFixMessage(fTmpBuf);

  805. 

  806.         plugin->getMaker(fTmpBuf);

  807.         fUiServer.writeAndFixMessage(fTmpBuf);

  808. 

  809.         plugin->getCopyright(fTmpBuf);

  810.         fUiServer.writeAndFixMessage(fTmpBuf);

  811. 

  812.         std::sprintf(fTmpBuf, "AUDIO_COUNT_%i:%i:%i\n", pluginId, plugin->getAudioInCount(), plugin->getAudioOutCount());

  813.         fUiServer.writeMessage(fTmpBuf);

  814. 

  815.         std::sprintf(fTmpBuf, "MIDI_COUNT_%i:%i:%i\n", pluginId, plugin->getMidiInCount(), plugin->getMidiOutCount());

  816.         fUiServer.writeMessage(fTmpBuf);

  817. 

  818.         fUiServer.flushMessages();

  819.     }

  820. 

  821.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  822.     {

  823.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  824.         const ScopedLocale csl;

  825. 

  826.         const uint pluginId(plugin->getId());

  827. 

  828.         for (int32_t i=PARAMETER_ACTIVE; i>PARAMETER_MAX; --i)

  829.         {

  830.             std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", pluginId, i);

  831.             fUiServer.writeMessage(fTmpBuf);

  832.             std::sprintf(fTmpBuf, "%f\n", plugin->getInternalParameterValue(i));

  833.             fUiServer.writeMessage(fTmpBuf);

  834.             fUiServer.flushMessages();

  835.         }

  836. 

  837.         uint32_t ins, outs, count;

  838.         plugin->getParameterCountInfo(ins, outs);

  839.         count = plugin->getParameterCount();

  840.         std::sprintf(fTmpBuf, "PARAMETER_COUNT_%i:%i:%i:%i\n", pluginId, ins, outs, count);

  841.         fUiServer.writeMessage(fTmpBuf);

  842. 

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

  844.         {

  845.             const ParameterData& paramData(plugin->getParameterData(i));

  846.             const ParameterRanges& paramRanges(plugin->getParameterRanges(i));

  847. 

  848.             std::sprintf(fTmpBuf, "PARAMETER_DATA_%i:%i\n", pluginId, i);

  849.             fUiServer.writeMessage(fTmpBuf);

  850.             std::sprintf(fTmpBuf, "%i:%i:%i:%i\n", paramData.type, paramData.hints, paramData.midiChannel, paramData.midiCC);

  851.             fUiServer.writeMessage(fTmpBuf);

  852.             plugin->getParameterName(i, fTmpBuf);

  853.             fUiServer.writeAndFixMessage(fTmpBuf);

  854.             plugin->getParameterUnit(i, fTmpBuf);

  855.             fUiServer.writeAndFixMessage(fTmpBuf);

  856. 

  857.             std::sprintf(fTmpBuf, "PARAMETER_RANGES_%i:%i\n", pluginId, i);

  858.             fUiServer.writeMessage(fTmpBuf);

  859.             std::sprintf(fTmpBuf, "%f:%f:%f:%f:%f:%f\n", paramRanges.def, paramRanges.min, paramRanges.max, paramRanges.step, paramRanges.stepSmall, paramRanges.stepLarge);

  860.             fUiServer.writeMessage(fTmpBuf);

  861. 

  862.             std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", pluginId, i);

  863.             fUiServer.writeMessage(fTmpBuf);

  864.             std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(i));

  865.             fUiServer.writeMessage(fTmpBuf);

  866.         }

  867. 

  868.         fUiServer.flushMessages();

  869.     }

  870. 

  871.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  872.     {

  873.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  874. 

  875.         const uint pluginId(plugin->getId());

  876. 

  877.         uint32_t count = plugin->getProgramCount();

  878.         std::sprintf(fTmpBuf, "PROGRAM_COUNT_%i:%i:%i\n", pluginId, count, plugin->getCurrentProgram());

  879.         fUiServer.writeMessage(fTmpBuf);

  880. 

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

  882.         {

  883.             std::sprintf(fTmpBuf, "PROGRAM_NAME_%i:%i\n", pluginId, i);

  884.             fUiServer.writeMessage(fTmpBuf);

  885.             plugin->getProgramName(i, fTmpBuf);

  886.             fUiServer.writeAndFixMessage(fTmpBuf);

  887.         }

  888. 

  889.         fUiServer.flushMessages();

  890. 

  891.         count = plugin->getMidiProgramCount();

  892.         std::sprintf(fTmpBuf, "MIDI_PROGRAM_COUNT_%i:%i:%i\n", pluginId, count, plugin->getCurrentMidiProgram());

  893.         fUiServer.writeMessage(fTmpBuf);

  894. 

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

  896.         {

  897.             std::sprintf(fTmpBuf, "MIDI_PROGRAM_DATA_%i:%i\n", pluginId, i);

  898.             fUiServer.writeMessage(fTmpBuf);

  899. 

  900.             const MidiProgramData& mpData(plugin->getMidiProgramData(i));

  901.             std::sprintf(fTmpBuf, "%i:%i\n", mpData.bank, mpData.program);

  902.             fUiServer.writeMessage(fTmpBuf);

  903.             std::sprintf(fTmpBuf, "%s", mpData.name);

  904.             fUiServer.writeAndFixMessage(fTmpBuf);

  905.         }

  906. 

  907.         fUiServer.flushMessages();

  908.     }

  909. 

  910.     void uiServerSendPluginProperties(CarlaPlugin* const plugin)

  911.     {

  912.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  913. 

  914.         const uint pluginId(plugin->getId());

  915. 

  916.         uint32_t count = plugin->getCustomDataCount();

  917.         std::sprintf(fTmpBuf, "CUSTOM_DATA_COUNT_%i:%i\n", pluginId, count);

  918.         fUiServer.writeMessage(fTmpBuf);

  919. 

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

  921.         {

  922.             const CustomData& customData(plugin->getCustomData(i));

  923.             CARLA_SAFE_ASSERT_CONTINUE(customData.isValid());

  924. 

  925.             if (std::strcmp(customData.type, CUSTOM_DATA_TYPE_PROPERTY) != 0)

  926.                 continue;

  927. 

  928.             std::sprintf(fTmpBuf, "CUSTOM_DATA_%i:%i\n", pluginId, i);

  929.             fUiServer.writeMessage(fTmpBuf);

  930. 

  931.             fUiServer.writeAndFixMessage(customData.type);

  932.             fUiServer.writeAndFixMessage(customData.key);

  933.             fUiServer.writeAndFixMessage(customData.value);

  934.         }

  935. 

  936.         fUiServer.flushMessages();

  937.     }

  938. 

  939.     void uiServerCallback(const EngineCallbackOpcode action, const uint pluginId, const int value1, const int value2, const float value3, const char* const valueStr)

  940.     {

  941.         if (! fIsRunning)

  942.             return;

  943.         if (! fUiServer.isPipeRunning())

  944.             return;

  945. 

  946.         CarlaPlugin* plugin;

  947. 

  948.         switch (action)

  949.         {

  950.         case ENGINE_CALLBACK_UPDATE:

  951.             plugin = getPlugin(pluginId);

  952. 

  953.             if (plugin != nullptr && plugin->isEnabled())

  954.             {

  955.                 CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);

  956.                 uiServerSendPluginProperties(plugin);

  957.             }

  958.             break;

  959. 

  960.         case ENGINE_CALLBACK_RELOAD_INFO:

  961.             plugin = getPlugin(pluginId);

  962. 

  963.             if (plugin != nullptr && plugin->isEnabled())

  964.             {

  965.                 CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);

  966.                 uiServerSendPluginInfo(plugin);

  967.             }

  968.             break;

  969. 

  970.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  971.             plugin = getPlugin(pluginId);

  972. 

  973.             if (plugin != nullptr && plugin->isEnabled())

  974.             {

  975.                 CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);

  976.                 uiServerSendPluginParameters(plugin);

  977.             }

  978.             break;

  979. 

  980.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  981.             plugin = getPlugin(pluginId);

  982. 

  983.             if (plugin != nullptr && plugin->isEnabled())

  984.             {

  985.                 CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);

  986.                 uiServerSendPluginPrograms(plugin);

  987.             }

  988.             break;

  989. 

  990.         case ENGINE_CALLBACK_RELOAD_ALL:

  991.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  992.             plugin = getPlugin(pluginId);

  993. 

  994.             if (plugin != nullptr && plugin->isEnabled())

  995.             {

  996.                 CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);

  997.                 uiServerSendPluginInfo(plugin);

  998.                 uiServerSendPluginParameters(plugin);

  999.                 uiServerSendPluginPrograms(plugin);

  1000.                 uiServerSendPluginProperties(plugin);

  1001.             }

  1002.             break;

  1003. 

  1004.         default:

  1005.             break;

  1006.         }

  1007. 

  1008.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1009.         const ScopedLocale csl;

  1010. 

  1011.         std::sprintf(fTmpBuf, "ENGINE_CALLBACK_%i\n", int(action));

  1012.         fUiServer.writeMessage(fTmpBuf);

  1013. 

  1014.         std::sprintf(fTmpBuf, "%u\n", pluginId);

  1015.         fUiServer.writeMessage(fTmpBuf);

  1016. 

  1017.         std::sprintf(fTmpBuf, "%i\n", value1);

  1018.         fUiServer.writeMessage(fTmpBuf);

  1019. 

  1020.         std::sprintf(fTmpBuf, "%i\n", value2);

  1021.         fUiServer.writeMessage(fTmpBuf);

  1022. 

  1023.         std::sprintf(fTmpBuf, "%f\n", value3);

  1024.         fUiServer.writeMessage(fTmpBuf);

  1025. 

  1026.         fUiServer.writeAndFixMessage(valueStr != nullptr ? valueStr : "");

  1027. 

  1028.         fUiServer.flushMessages();

  1029.     }

  1030. 

  1031.     void uiServerInfo()

  1032.     {

  1033.         CARLA_SAFE_ASSERT_RETURN(fIsRunning,);

  1034.         CARLA_SAFE_ASSERT_RETURN(fUiServer.isPipeRunning(),);

  1035. 

  1036.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1037. 

  1038. #ifdef HAVE_LIBLO

  1039.         fUiServer.writeAndFixMessage("osc-urls");

  1040.         fUiServer.writeAndFixMessage(pData->osc.getServerPathTCP());

  1041.         fUiServer.writeAndFixMessage(pData->osc.getServerPathUDP());

  1042. #endif

  1043. 

  1044.         fUiServer.writeAndFixMessage("max-plugin-number");

  1045.         std::sprintf(fTmpBuf, "%i\n", pData->maxPluginNumber);

  1046.         fUiServer.writeMessage(fTmpBuf);

  1047. 

  1048.         fUiServer.writeAndFixMessage("buffer-size");

  1049.         std::sprintf(fTmpBuf, "%i\n", pData->bufferSize);

  1050.         fUiServer.writeMessage(fTmpBuf);

  1051. 

  1052.         const ScopedLocale csl;

  1053. 

  1054.         fUiServer.writeAndFixMessage("sample-rate");

  1055.         std::sprintf(fTmpBuf, "%f\n", pData->sampleRate);

  1056.         fUiServer.writeMessage(fTmpBuf);

  1057. 

  1058.         fUiServer.flushMessages();

  1059.     }

  1060. 

  1061.     void uiServerOptions()

  1062.     {

  1063.         CARLA_SAFE_ASSERT_RETURN(fIsRunning,);

  1064.         CARLA_SAFE_ASSERT_RETURN(fUiServer.isPipeRunning(),);

  1065. 

  1066.         const EngineOptions& options(pData->options);

  1067.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1068. 

  1069.         const char* const optionsForcedStr(fOptionsForced ? "true\n" : "false\n");

  1070.         const std::size_t optionsForcedStrSize(fOptionsForced ? 5 : 6);

  1071. 

  1072.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PROCESS_MODE);

  1073.         fUiServer.writeMessage(fTmpBuf);

  1074.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1075.         std::sprintf(fTmpBuf, "%i\n", options.processMode);

  1076.         fUiServer.writeMessage(fTmpBuf);

  1077.         fUiServer.flushMessages();

  1078. 

  1079.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_TRANSPORT_MODE);

  1080.         fUiServer.writeMessage(fTmpBuf);

  1081.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1082.         std::sprintf(fTmpBuf, "%i\n", options.transportMode);

  1083.         fUiServer.writeMessage(fTmpBuf);

  1084.         fUiServer.flushMessages();

  1085. 

  1086.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_FORCE_STEREO);

  1087.         fUiServer.writeMessage(fTmpBuf);

  1088.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1089.         fUiServer.writeMessage(options.forceStereo ? "true\n" : "false\n");

  1090.         fUiServer.flushMessages();

  1091. 

  1092.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PREFER_PLUGIN_BRIDGES);

  1093.         fUiServer.writeMessage(fTmpBuf);

  1094.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1095.         fUiServer.writeMessage(options.preferPluginBridges ? "true\n" : "false\n");

  1096.         fUiServer.flushMessages();

  1097. 

  1098.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PREFER_UI_BRIDGES);

  1099.         fUiServer.writeMessage(fTmpBuf);

  1100.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1101.         fUiServer.writeMessage(options.preferUiBridges ? "true\n" : "false\n");

  1102.         fUiServer.flushMessages();

  1103. 

  1104.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_UIS_ALWAYS_ON_TOP);

  1105.         fUiServer.writeMessage(fTmpBuf);

  1106.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1107.         fUiServer.writeMessage(options.uisAlwaysOnTop ? "true\n" : "false\n");

  1108.         fUiServer.flushMessages();

  1109. 

  1110.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_MAX_PARAMETERS);

  1111.         fUiServer.writeMessage(fTmpBuf);

  1112.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1113.         std::sprintf(fTmpBuf, "%i\n", options.maxParameters);

  1114.         fUiServer.writeMessage(fTmpBuf);

  1115.         fUiServer.flushMessages();

  1116. 

  1117.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_UI_BRIDGES_TIMEOUT);

  1118.         fUiServer.writeMessage(fTmpBuf);

  1119.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1120.         std::sprintf(fTmpBuf, "%i\n", options.uiBridgesTimeout);

  1121.         fUiServer.writeMessage(fTmpBuf);

  1122.         fUiServer.flushMessages();

  1123. 

  1124.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PATH_BINARIES);

  1125.         fUiServer.writeMessage(fTmpBuf);

  1126.         fUiServer.writeMessage("true\n", 5);

  1127.         std::sprintf(fTmpBuf, "%s\n", options.binaryDir);

  1128.         fUiServer.writeMessage(fTmpBuf);

  1129.         fUiServer.flushMessages();

  1130. 

  1131.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PATH_RESOURCES);

  1132.         fUiServer.writeMessage(fTmpBuf);

  1133.         fUiServer.writeMessage("true\n", 5);

  1134.         std::sprintf(fTmpBuf, "%s\n", options.resourceDir);

  1135.         fUiServer.writeMessage(fTmpBuf);

  1136.         fUiServer.flushMessages();

  1137.     }

  1138. 

  1139.     // -------------------------------------------------------------------

  1140.     // Plugin parameter calls

  1141. 

  1142.     uint32_t getParameterCount() const

  1143.     {

  1144.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1145.             return plugin->getParameterCount();

  1146. 

  1147.         return 0;

  1148.     }

  1149. 

  1150.     const NativeParameter* getParameterInfo(const uint32_t index) const

  1151.     {

  1152.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1153.         {

  1154.             if (index < plugin->getParameterCount())

  1155.             {

  1156.                 static NativeParameter param;

  1157.                 static char strBufName[STR_MAX+1];

  1158.                 static char strBufUnit[STR_MAX+1];

  1159. 

  1160.                 const ParameterData& paramData(plugin->getParameterData(index));

  1161.                 const ParameterRanges& paramRanges(plugin->getParameterRanges(index));

  1162. 

  1163.                 plugin->getParameterName(index, strBufName);

  1164.                 plugin->getParameterUnit(index, strBufUnit);

  1165. 

  1166.                 uint hints = 0x0;

  1167. 

  1168.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  1169.                     hints |= NATIVE_PARAMETER_IS_BOOLEAN;

  1170.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  1171.                     hints |= NATIVE_PARAMETER_IS_INTEGER;

  1172.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  1173.                     hints |= NATIVE_PARAMETER_IS_LOGARITHMIC;

  1174.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  1175.                     hints |= NATIVE_PARAMETER_IS_AUTOMABLE;

  1176.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  1177.                     hints |= NATIVE_PARAMETER_USES_SAMPLE_RATE;

  1178.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  1179.                     hints |= NATIVE_PARAMETER_USES_SCALEPOINTS;

  1180. 

  1181.                 if (paramData.type == PARAMETER_INPUT || paramData.type == PARAMETER_OUTPUT)

  1182.                 {

  1183.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  1184.                         hints |= NATIVE_PARAMETER_IS_ENABLED;

  1185.                     if (paramData.type == PARAMETER_OUTPUT)

  1186.                         hints |= NATIVE_PARAMETER_IS_OUTPUT;

  1187.                 }

  1188. 

  1189.                 param.hints = static_cast<NativeParameterHints>(hints);

  1190.                 param.name  = strBufName;

  1191.                 param.unit  = strBufUnit;

  1192.                 param.ranges.def = paramRanges.def;

  1193.                 param.ranges.min = paramRanges.min;

  1194.                 param.ranges.max = paramRanges.max;

  1195.                 param.ranges.step = paramRanges.step;

  1196.                 param.ranges.stepSmall = paramRanges.stepSmall;

  1197.                 param.ranges.stepLarge = paramRanges.stepLarge;

  1198.                 param.scalePointCount = 0; // TODO

  1199.                 param.scalePoints = nullptr;

  1200. 

  1201.                 return &param;

  1202.             }

  1203.         }

  1204. 

  1205.         return nullptr;

  1206.     }

  1207. 

  1208.     float getParameterValue(const uint32_t index) const

  1209.     {

  1210.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1211.         {

  1212.             if (index < plugin->getParameterCount())

  1213.                 return plugin->getParameterValue(index);

  1214.         }

  1215. 

  1216.         return 0.0f;

  1217.     }

  1218. 

  1219.     // -------------------------------------------------------------------

  1220.     // Plugin midi-program calls

  1221. 

  1222.     uint32_t getMidiProgramCount() const

  1223.     {

  1224.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1225.             return plugin->getMidiProgramCount();

  1226. 

  1227.         return 0;

  1228.     }

  1229. 

  1230.     const NativeMidiProgram* getMidiProgramInfo(const uint32_t index) const

  1231.     {

  1232.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1233.         {

  1234.             if (index < plugin->getMidiProgramCount())

  1235.             {

  1236.                 static NativeMidiProgram midiProg;

  1237. 

  1238.                 {

  1239.                     const MidiProgramData& midiProgData(plugin->getMidiProgramData(index));

  1240. 

  1241.                     midiProg.bank    = midiProgData.bank;

  1242.                     midiProg.program = midiProgData.program;

  1243.                     midiProg.name    = midiProgData.name;

  1244.                 }

  1245. 

  1246.                 return &midiProg;

  1247.             }

  1248.         }

  1249. 

  1250.         return nullptr;

  1251.     }

  1252. 

  1253.     // -------------------------------------------------------------------

  1254.     // Plugin state calls

  1255. 

  1256.     void setParameterValue(const uint32_t index, const float value)

  1257.     {

  1258.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1259.         {

  1260.             if (index < plugin->getParameterCount())

  1261.                 plugin->setParameterValue(index, value, false, false, false);

  1262.         }

  1263.     }

  1264. 

  1265.     void setMidiProgram(const uint8_t, const uint32_t bank, const uint32_t program)

  1266.     {

  1267.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1268.             plugin->setMidiProgramById(bank, program, false, false, false);

  1269.     }

  1270. 

  1271.     // -------------------------------------------------------------------

  1272.     // Plugin process calls

  1273. 

  1274.     void activate()

  1275.     {

  1276. #if 0

  1277.         for (uint i=0; i < pData->curPluginCount; ++i)

  1278.         {

  1279.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1280. 

  1281.             if (plugin == nullptr || ! plugin->isEnabled())

  1282.                 continue;

  1283. 

  1284.             plugin->setActive(true, true, false);

  1285.         }

  1286. #endif

  1287.         fIsActive = true;

  1288.     }

  1289. 

  1290.     void deactivate()

  1291.     {

  1292.         fIsActive = false;

  1293. #if 0

  1294.         for (uint i=0; i < pData->curPluginCount; ++i)

  1295.         {

  1296.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1297. 

  1298.             if (plugin == nullptr || ! plugin->isEnabled())

  1299.                 continue;

  1300. 

  1301.             plugin->setActive(false, true, false);

  1302.         }

  1303. #endif

  1304. 

  1305.         // just in case

  1306.         //runPendingRtEvents();

  1307.     }

  1308. 

  1309.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames,

  1310.                  const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1311.     {

  1312.         const PendingRtEventsRunner prt(this);

  1313. 

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

  1315.         // Time Info

  1316. 

  1317.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1318. 

  1319.         pData->timeInfo.playing = timeInfo->playing;

  1320.         pData->timeInfo.frame   = timeInfo->frame;

  1321.         pData->timeInfo.usecs   = timeInfo->usecs;

  1322.         pData->timeInfo.valid   = 0x0;

  1323. 

  1324.         if (timeInfo->bbt.valid)

  1325.         {

  1326.             pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;

  1327. 

  1328.             pData->timeInfo.bbt.bar = timeInfo->bbt.bar;

  1329.             pData->timeInfo.bbt.beat = timeInfo->bbt.beat;

  1330.             pData->timeInfo.bbt.tick = timeInfo->bbt.tick;

  1331.             pData->timeInfo.bbt.barStartTick = timeInfo->bbt.barStartTick;

  1332. 

  1333.             pData->timeInfo.bbt.beatsPerBar = timeInfo->bbt.beatsPerBar;

  1334.             pData->timeInfo.bbt.beatType = timeInfo->bbt.beatType;

  1335. 

  1336.             pData->timeInfo.bbt.ticksPerBeat = timeInfo->bbt.ticksPerBeat;

  1337.             pData->timeInfo.bbt.beatsPerMinute = timeInfo->bbt.beatsPerMinute;

  1338.         }

  1339. 

  1340.         // ---------------------------------------------------------------

  1341.         // Do nothing if no plugins and rack mode

  1342. 

  1343.         if (pData->curPluginCount == 0 && ! kIsPatchbay)

  1344.         {

  1345.             if (outBuffer[0] != inBuffer[0])

  1346.                 FloatVectorOperations::copy(outBuffer[0], inBuffer[0], static_cast<int>(frames));

  1347. 

  1348.             if (outBuffer[1] != inBuffer[1])

  1349.                 FloatVectorOperations::copy(outBuffer[1], inBuffer[1], static_cast<int>(frames));

  1350. 

  1351.             for (uint32_t i=0; i < midiEventCount; ++i)

  1352.             {

  1353.                 if (! pHost->write_midi_event(pHost->handle, &midiEvents[i]))

  1354.                     break;

  1355.             }

  1356.             return;

  1357.         }

  1358. 

  1359.         // ---------------------------------------------------------------

  1360.         // initialize events

  1361. 

  1362.         carla_zeroStructs(pData->events.in,  kMaxEngineEventInternalCount);

  1363.         carla_zeroStructs(pData->events.out, kMaxEngineEventInternalCount);

  1364. 

  1365.         // ---------------------------------------------------------------

  1366.         // events input (before processing)

  1367. 

  1368.         {

  1369.             uint32_t engineEventIndex = 0;

  1370. 

  1371.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kMaxEngineEventInternalCount; ++i)

  1372.             {

  1373.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1374.                 EngineEvent&           engineEvent(pData->events.in[engineEventIndex++]);

  1375. 

  1376.                 engineEvent.time = midiEvent.time;

  1377.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data, 0);

  1378. 

  1379.                 if (engineEventIndex >= kMaxEngineEventInternalCount)

  1380.                     break;

  1381.             }

  1382.         }

  1383. 

  1384.         if (kIsPatchbay)

  1385.         {

  1386.             // -----------------------------------------------------------

  1387.             // process

  1388. 

  1389.             pData->graph.process(pData, inBuffer, outBuffer, frames);

  1390.         }

  1391.         else

  1392.         {

  1393.             // -----------------------------------------------------------

  1394.             // create audio buffers

  1395. 

  1396.             const float* inBuf[2]  = {  inBuffer[0],  inBuffer[1] };

  1397.             /* */ float* outBuf[2] = { outBuffer[0], outBuffer[1] };

  1398. 

  1399.             // -----------------------------------------------------------

  1400.             // process

  1401. 

  1402.             pData->graph.processRack(pData, inBuf, outBuf, frames);

  1403.         }

  1404. 

  1405.         // ---------------------------------------------------------------

  1406.         // events output (after processing)

  1407. 

  1408.         carla_zeroStructs(pData->events.in, kMaxEngineEventInternalCount);

  1409. 

  1410.         {

  1411.             NativeMidiEvent midiEvent;

  1412. 

  1413.             for (uint32_t i=0; i < kMaxEngineEventInternalCount; ++i)

  1414.             {

  1415.                 const EngineEvent& engineEvent(pData->events.out[i]);

  1416. 

  1417.                 if (engineEvent.type == kEngineEventTypeNull)

  1418.                     break;

  1419. 

  1420.                 midiEvent.time = engineEvent.time;

  1421. 

  1422.                 if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)

  1423.                 {

  1424.                     midiEvent.port = 0;

  1425.                     engineEvent.ctrl.convertToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);

  1426.                 }

  1427.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1428.                 {

  1429.                     if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)

  1430.                         continue;

  1431. 

  1432.                     midiEvent.port = engineEvent.midi.port;

  1433.                     midiEvent.size = engineEvent.midi.size;

  1434. 

  1435.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);

  1436. 

  1437.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1438.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1439.                 }

  1440.                 else

  1441.                 {

  1442.                     carla_stderr("Unknown event type...");

  1443.                     continue;

  1444.                 }

  1445. 

  1446.                 pHost->write_midi_event(pHost->handle, &midiEvent);

  1447.             }

  1448.         }

  1449.     }

  1450. 

  1451.     // -------------------------------------------------------------------

  1452.     // Plugin UI calls

  1453. 

  1454.     void uiShow(const bool show)

  1455.     {

  1456.         if (show)

  1457.         {

  1458.             if (fUiServer.isPipeRunning())

  1459.             {

  1460.                 fUiServer.writeFocusMessage();

  1461.                 return;

  1462.             }

  1463. 

  1464.             CarlaString path(pHost->resourceDir);

  1465. 

  1466.             if (kIsPatchbay)

  1467.                 path += CARLA_OS_SEP_STR "carla-plugin-patchbay";

  1468.             else

  1469.                 path += CARLA_OS_SEP_STR "carla-plugin";

  1470. // #ifdef CARLA_OS_WIN

  1471. //             path += ".exe";

  1472. // #endif

  1473.             carla_stdout("Trying to start carla-plugin using \"%s\"", path.buffer());

  1474. 

  1475.             fUiServer.setData(path, pData->sampleRate, pHost->uiName);

  1476. 

  1477.             if (! fUiServer.startPipeServer(false))

  1478.             {

  1479.                 pHost->dispatcher(pHost->handle, NATIVE_HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1480.                 return;

  1481.             }

  1482. 

  1483.             uiServerInfo();

  1484.             uiServerOptions();

  1485.             uiServerCallback(ENGINE_CALLBACK_ENGINE_STARTED, 0, pData->options.processMode, pData->options.transportMode, 0.0f, "Plugin");

  1486. 

  1487.             fUiServer.writeShowMessage();

  1488. 

  1489.             for (uint i=0; i < pData->curPluginCount; ++i)

  1490.             {

  1491.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1492. 

  1493.                 if (plugin != nullptr && plugin->isEnabled())

  1494.                 {

  1495.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());

  1496.                 }

  1497.             }

  1498. 

  1499.             if (kIsPatchbay)

  1500.                 patchbayRefresh(false);

  1501.         }

  1502.         else

  1503.         {

  1504.             fUiServer.stopPipeServer(2000);

  1505. 

  1506.             // hide all custom uis

  1507.             for (uint i=0; i < pData->curPluginCount; ++i)

  1508.             {

  1509.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1510. 

  1511.                 if (plugin != nullptr && plugin->isEnabled())

  1512.                 {

  1513.                     if (plugin->getHints() & PLUGIN_HAS_CUSTOM_UI)

  1514.                     {

  1515.                         try {

  1516.                             plugin->showCustomUI(false);

  1517.                         } CARLA_SAFE_EXCEPTION_CONTINUE("Plugin showCustomUI (hide)");

  1518.                     }

  1519.                 }

  1520.             }

  1521.         }

  1522.     }

  1523. 

  1524.     void uiIdle()

  1525.     {

  1526.         for (uint i=0; i < pData->curPluginCount; ++i)

  1527.         {

  1528.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1529. 

  1530.             if (plugin != nullptr && plugin->isEnabled())

  1531.             {

  1532.                 if (plugin->getHints() & PLUGIN_HAS_CUSTOM_UI)

  1533.                 {

  1534.                     try {

  1535.                         plugin->uiIdle();

  1536.                     } CARLA_SAFE_EXCEPTION_CONTINUE("Plugin uiIdle");

  1537.                 }

  1538.             }

  1539.         }

  1540. 

  1541.         if (fUiServer.isPipeRunning())

  1542.         {

  1543.             fUiServer.idlePipe();

  1544. 

  1545.             const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1546. #ifndef CARLA_OS_WIN

  1547.             const EngineTimeInfo& timeInfo(pData->timeInfo);

  1548.             const ScopedLocale csl;

  1549. 

  1550.             // send transport

  1551.             fUiServer.writeAndFixMessage("transport");

  1552.             fUiServer.writeMessage(timeInfo.playing ? "true\n" : "false\n");

  1553. 

  1554.             if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1555.             {

  1556.                 std::sprintf(fTmpBuf, P_UINT64 ":%i:%i:%i\n", timeInfo.frame, timeInfo.bbt.bar, timeInfo.bbt.beat, timeInfo.bbt.tick);

  1557.                 fUiServer.writeMessage(fTmpBuf);

  1558.                 std::sprintf(fTmpBuf, "%f\n", timeInfo.bbt.beatsPerMinute);

  1559.                 fUiServer.writeMessage(fTmpBuf);

  1560.             }

  1561.             else

  1562.             {

  1563.                 std::sprintf(fTmpBuf, P_UINT64 ":0:0:0\n", timeInfo.frame);

  1564.                 fUiServer.writeMessage(fTmpBuf);

  1565.                 fUiServer.writeMessage("0.0\n");

  1566.             }

  1567. 

  1568.             fUiServer.flushMessages();

  1569. #endif

  1570. 

  1571.             // send peaks and param outputs for all plugins

  1572.             for (uint i=0; i < pData->curPluginCount; ++i)

  1573.             {

  1574.                 const EnginePluginData& plugData(pData->plugins[i]);

  1575.                 const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1576. 

  1577.                 std::sprintf(fTmpBuf, "PEAKS_%i\n", i);

  1578.                 fUiServer.writeMessage(fTmpBuf);

  1579. 

  1580.                 std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);

  1581.                 fUiServer.writeMessage(fTmpBuf);

  1582.                 fUiServer.flushMessages();

  1583. 

  1584.                 for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1585.                 {

  1586.                     if (! plugin->isParameterOutput(j))

  1587.                         continue;

  1588. 

  1589.                     std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1590.                     fUiServer.writeMessage(fTmpBuf);

  1591.                     std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));

  1592.                     fUiServer.writeMessage(fTmpBuf);

  1593.                     fUiServer.flushMessages();

  1594.                 }

  1595.             }

  1596.         }

  1597. 

  1598.         switch (fUiServer.getAndResetUiState())

  1599.         {

  1600.         case CarlaExternalUI::UiNone:

  1601.         case CarlaExternalUI::UiShow:

  1602.             break;

  1603.         case CarlaExternalUI::UiCrashed:

  1604.             pHost->dispatcher(pHost->handle, NATIVE_HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1605.             break;

  1606.         case CarlaExternalUI::UiHide:

  1607.             pHost->ui_closed(pHost->handle);

  1608.             fUiServer.stopPipeServer(1000);

  1609.             break;

  1610.         }

  1611.     }

  1612. 

  1613.     // -------------------------------------------------------------------

  1614.     // Plugin state calls

  1615. 

  1616.     char* getState() const

  1617.     {

  1618.         MemoryOutputStream out;

  1619.         saveProjectInternal(out);

  1620.         return strdup(out.toString().toRawUTF8());

  1621.     }

  1622. 

  1623.     void setState(const char* const data)

  1624.     {

  1625.         // remove all plugins from UI side

  1626.         for (int i=pData->curPluginCount; --i >= 0;)

  1627.             CarlaEngine::callback(ENGINE_CALLBACK_PLUGIN_REMOVED, i, 0, 0, 0.0f, nullptr);

  1628. 

  1629.         // remove all plugins from backend, no lock

  1630.         fIsRunning = false;

  1631.         removeAllPlugins();

  1632.         fIsRunning = true;

  1633. 

  1634.         // stopped during removeAllPlugins()

  1635.         if (! pData->thread.isThreadRunning())

  1636.             pData->thread.startThread();

  1637. 

  1638.         fOptionsForced = true;

  1639.         const String state(data);

  1640.         XmlDocument xml(state);

  1641.         loadProjectInternal(xml);

  1642.     }

  1643. 

  1644.     // -------------------------------------------------------------------

  1645. 

  1646. public:

  1647.     #define handlePtr ((CarlaEngineNative*)handle)

  1648. 

  1649.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1650.     {

  1651.         return new CarlaEngineNative(host, false);

  1652.     }

  1653. 

  1654.     static NativePluginHandle _instantiatePatchbay(const NativeHostDescriptor* host)

  1655.     {

  1656.         return new CarlaEngineNative(host, true);

  1657.     }

  1658. 

  1659.     static NativePluginHandle _instantiatePatchbay3s(const NativeHostDescriptor* host)

  1660.     {

  1661.         return new CarlaEngineNative(host, true, 3, 2);

  1662.     }

  1663. 

  1664.     static NativePluginHandle _instantiatePatchbay16(const NativeHostDescriptor* host)

  1665.     {

  1666.         return new CarlaEngineNative(host, true, 16);

  1667.     }

  1668. 

  1669.     static NativePluginHandle _instantiatePatchbay32(const NativeHostDescriptor* host)

  1670.     {

  1671.         return new CarlaEngineNative(host, true, 32);

  1672.     }

  1673. 

  1674.     static void _cleanup(NativePluginHandle handle)

  1675.     {

  1676.         delete handlePtr;

  1677.     }

  1678. 

  1679.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1680.     {

  1681.         return handlePtr->getParameterCount();

  1682.     }

  1683. 

  1684.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1685.     {

  1686.         return handlePtr->getParameterInfo(index);

  1687.     }

  1688. 

  1689.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1690.     {

  1691.         return handlePtr->getParameterValue(index);

  1692.     }

  1693. 

  1694.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1695.     {

  1696.         return handlePtr->getMidiProgramCount();

  1697.     }

  1698. 

  1699.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1700.     {

  1701.         return handlePtr->getMidiProgramInfo(index);

  1702.     }

  1703. 

  1704.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1705.     {

  1706.         handlePtr->setParameterValue(index, value);

  1707.     }

  1708. 

  1709.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1710.     {

  1711.         handlePtr->setMidiProgram(channel, bank, program);

  1712.     }

  1713. 

  1714.     static void _ui_show(NativePluginHandle handle, bool show)

  1715.     {

  1716.         handlePtr->uiShow(show);

  1717.     }

  1718. 

  1719.     static void _ui_idle(NativePluginHandle handle)

  1720.     {

  1721.         handlePtr->uiIdle();

  1722.     }

  1723. 

  1724.     static void _activate(NativePluginHandle handle)

  1725.     {

  1726.         handlePtr->activate();

  1727.     }

  1728. 

  1729.     static void _deactivate(NativePluginHandle handle)

  1730.     {

  1731.         handlePtr->deactivate();

  1732.     }

  1733. 

  1734.     static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1735.     {

  1736.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1737.     }

  1738. 

  1739.     static char* _get_state(NativePluginHandle handle)

  1740.     {

  1741.         return handlePtr->getState();

  1742.     }

  1743. 

  1744.     static void _set_state(NativePluginHandle handle, const char* data)

  1745.     {

  1746.         handlePtr->setState(data);

  1747.     }

  1748. 

  1749.     static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1750.     {

  1751.         switch(opcode)

  1752.         {

  1753.         case NATIVE_PLUGIN_OPCODE_NULL:

  1754.             return 0;

  1755.         case NATIVE_PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1756.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1757.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1758.             return 0;

  1759.         case NATIVE_PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1760.             CARLA_SAFE_ASSERT_RETURN(opt > 0.0, 0);

  1761.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1762.             return 0;

  1763.         case NATIVE_PLUGIN_OPCODE_OFFLINE_CHANGED:

  1764.             handlePtr->offlineModeChanged(value != 0);

  1765.             return 0;

  1766.         case NATIVE_PLUGIN_OPCODE_UI_NAME_CHANGED:

  1767.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1768.             return 0;

  1769.         }

  1770. 

  1771.         return 0;

  1772. 

  1773.         // unused

  1774.         (void)index;

  1775.         (void)ptr;

  1776.     }

  1777. 

  1778.     // -------------------------------------------------------------------

  1779. 

  1780.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)

  1781.     {

  1782.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);

  1783.     }

  1784. 

  1785.     // -------------------------------------------------------------------

  1786. 

  1787.     #undef handlePtr

  1788. 

  1789. private:

  1790.     const NativeHostDescriptor* const pHost;

  1791. 

  1792.     const bool kIsPatchbay; // rack if false

  1793.     bool fIsActive, fIsRunning;

  1794.     CarlaEngineNativeUI fUiServer;

  1795. 

  1796.     bool fOptionsForced;

  1797.     char fTmpBuf[STR_MAX+1];

  1798. 

  1799.     CarlaPlugin* _getFirstPlugin() const noexcept

  1800.     {

  1801.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1802.             return nullptr;

  1803. 

  1804.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1805. 

  1806.         if (plugin == nullptr || ! plugin->isEnabled())

  1807.             return nullptr;

  1808. 

  1809.         return pData->plugins[0].plugin;

  1810.     }

  1811. 

  1812.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1813. };

  1814. 

  1815. // -----------------------------------------------------------------------

  1816. 

  1817. static const NativePluginDescriptor carlaRackDesc = {

  1818.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1819.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1820.                                                   |NATIVE_PLUGIN_HAS_UI

  1821.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1822.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  1823.                                                   |NATIVE_PLUGIN_USES_STATE

  1824.                                                   |NATIVE_PLUGIN_USES_TIME),

  1825.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1826.     /* audioIns  */ 2,

  1827.     /* audioOuts */ 2,

  1828.     /* midiIns   */ 1,

  1829.     /* midiOuts  */ 1,

  1830.     /* paramIns  */ 0,

  1831.     /* paramOuts */ 0,

  1832.     /* name      */ "Carla-Rack",

  1833.     /* label     */ "carlarack",

  1834.     /* maker     */ "falkTX",

  1835.     /* copyright */ "GNU GPL v2+",

  1836.     CarlaEngineNative::_instantiateRack,

  1837.     CarlaEngineNative::_cleanup,

  1838.     CarlaEngineNative::_get_parameter_count,

  1839.     CarlaEngineNative::_get_parameter_info,

  1840.     CarlaEngineNative::_get_parameter_value,

  1841.     CarlaEngineNative::_get_midi_program_count,

  1842.     CarlaEngineNative::_get_midi_program_info,

  1843.     CarlaEngineNative::_set_parameter_value,

  1844.     CarlaEngineNative::_set_midi_program,

  1845.     /* _set_custom_data        */ nullptr,

  1846.     CarlaEngineNative::_ui_show,

  1847.     CarlaEngineNative::_ui_idle,

  1848.     /* _ui_set_parameter_value */ nullptr,

  1849.     /* _ui_set_midi_program    */ nullptr,

  1850.     /* _ui_set_custom_data     */ nullptr,

  1851.     CarlaEngineNative::_activate,

  1852.     CarlaEngineNative::_deactivate,

  1853.     CarlaEngineNative::_process,

  1854.     CarlaEngineNative::_get_state,

  1855.     CarlaEngineNative::_set_state,

  1856.     CarlaEngineNative::_dispatcher

  1857. };

  1858. 

  1859. static const NativePluginDescriptor carlaPatchbayDesc = {

  1860.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1861.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1862.                                                   |NATIVE_PLUGIN_HAS_UI

  1863.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1864.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  1865.                                                   |NATIVE_PLUGIN_USES_STATE

  1866.                                                   |NATIVE_PLUGIN_USES_TIME),

  1867.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1868.     /* audioIns  */ 2,

  1869.     /* audioOuts */ 2,

  1870.     /* midiIns   */ 1,

  1871.     /* midiOuts  */ 1,

  1872.     /* paramIns  */ 0,

  1873.     /* paramOuts */ 0,

  1874.     /* name      */ "Carla-Patchbay",

  1875.     /* label     */ "carlapatchbay",

  1876.     /* maker     */ "falkTX",

  1877.     /* copyright */ "GNU GPL v2+",

  1878.     CarlaEngineNative::_instantiatePatchbay,

  1879.     CarlaEngineNative::_cleanup,

  1880.     CarlaEngineNative::_get_parameter_count,

  1881.     CarlaEngineNative::_get_parameter_info,

  1882.     CarlaEngineNative::_get_parameter_value,

  1883.     CarlaEngineNative::_get_midi_program_count,

  1884.     CarlaEngineNative::_get_midi_program_info,

  1885.     CarlaEngineNative::_set_parameter_value,

  1886.     CarlaEngineNative::_set_midi_program,

  1887.     /* _set_custom_data        */ nullptr,

  1888.     CarlaEngineNative::_ui_show,

  1889.     CarlaEngineNative::_ui_idle,

  1890.     /* _ui_set_parameter_value */ nullptr,

  1891.     /* _ui_set_midi_program    */ nullptr,

  1892.     /* _ui_set_custom_data     */ nullptr,

  1893.     CarlaEngineNative::_activate,

  1894.     CarlaEngineNative::_deactivate,

  1895.     CarlaEngineNative::_process,

  1896.     CarlaEngineNative::_get_state,

  1897.     CarlaEngineNative::_set_state,

  1898.     CarlaEngineNative::_dispatcher

  1899. };

  1900. 

  1901. static const NativePluginDescriptor carlaPatchbay3sDesc = {

  1902.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1903.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1904.                                                   |NATIVE_PLUGIN_HAS_UI

  1905.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1906.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  1907.                                                   |NATIVE_PLUGIN_USES_STATE

  1908.                                                   |NATIVE_PLUGIN_USES_TIME),

  1909.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1910.     /* audioIns  */ 3,

  1911.     /* audioOuts */ 2,

  1912.     /* midiIns   */ 1,

  1913.     /* midiOuts  */ 1,

  1914.     /* paramIns  */ 0,

  1915.     /* paramOuts */ 0,

  1916.     /* name      */ "Carla-Patchbay (sidechain)",

  1917.     /* label     */ "carlapatchbay3s",

  1918.     /* maker     */ "falkTX",

  1919.     /* copyright */ "GNU GPL v2+",

  1920.     CarlaEngineNative::_instantiatePatchbay3s,

  1921.     CarlaEngineNative::_cleanup,

  1922.     CarlaEngineNative::_get_parameter_count,

  1923.     CarlaEngineNative::_get_parameter_info,

  1924.     CarlaEngineNative::_get_parameter_value,

  1925.     CarlaEngineNative::_get_midi_program_count,

  1926.     CarlaEngineNative::_get_midi_program_info,

  1927.     CarlaEngineNative::_set_parameter_value,

  1928.     CarlaEngineNative::_set_midi_program,

  1929.     /* _set_custom_data        */ nullptr,

  1930.     CarlaEngineNative::_ui_show,

  1931.     CarlaEngineNative::_ui_idle,

  1932.     /* _ui_set_parameter_value */ nullptr,

  1933.     /* _ui_set_midi_program    */ nullptr,

  1934.     /* _ui_set_custom_data     */ nullptr,

  1935.     CarlaEngineNative::_activate,

  1936.     CarlaEngineNative::_deactivate,

  1937.     CarlaEngineNative::_process,

  1938.     CarlaEngineNative::_get_state,

  1939.     CarlaEngineNative::_set_state,

  1940.     CarlaEngineNative::_dispatcher

  1941. };

  1942. 

  1943. static const NativePluginDescriptor carlaPatchbay16Desc = {

  1944.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1945.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1946.                                                   |NATIVE_PLUGIN_HAS_UI

  1947.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1948.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  1949.                                                   |NATIVE_PLUGIN_USES_STATE

  1950.                                                   |NATIVE_PLUGIN_USES_TIME),

  1951.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1952.     /* audioIns  */ 16,

  1953.     /* audioOuts */ 16,

  1954.     /* midiIns   */ 1,

  1955.     /* midiOuts  */ 1,

  1956.     /* paramIns  */ 0,

  1957.     /* paramOuts */ 0,

  1958.     /* name      */ "Carla-Patchbay (16chan)",

  1959.     /* label     */ "carlapatchbay16",

  1960.     /* maker     */ "falkTX",

  1961.     /* copyright */ "GNU GPL v2+",

  1962.     CarlaEngineNative::_instantiatePatchbay16,

  1963.     CarlaEngineNative::_cleanup,

  1964.     CarlaEngineNative::_get_parameter_count,

  1965.     CarlaEngineNative::_get_parameter_info,

  1966.     CarlaEngineNative::_get_parameter_value,

  1967.     CarlaEngineNative::_get_midi_program_count,

  1968.     CarlaEngineNative::_get_midi_program_info,

  1969.     CarlaEngineNative::_set_parameter_value,

  1970.     CarlaEngineNative::_set_midi_program,

  1971.     /* _set_custom_data        */ nullptr,

  1972.     CarlaEngineNative::_ui_show,

  1973.     CarlaEngineNative::_ui_idle,

  1974.     /* _ui_set_parameter_value */ nullptr,

  1975.     /* _ui_set_midi_program    */ nullptr,

  1976.     /* _ui_set_custom_data     */ nullptr,

  1977.     CarlaEngineNative::_activate,

  1978.     CarlaEngineNative::_deactivate,

  1979.     CarlaEngineNative::_process,

  1980.     CarlaEngineNative::_get_state,

  1981.     CarlaEngineNative::_set_state,

  1982.     CarlaEngineNative::_dispatcher

  1983. };

  1984. 

  1985. static const NativePluginDescriptor carlaPatchbay32Desc = {

  1986.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1987.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1988.                                                   |NATIVE_PLUGIN_HAS_UI

  1989.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1990.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  1991.                                                   |NATIVE_PLUGIN_USES_STATE

  1992.                                                   |NATIVE_PLUGIN_USES_TIME),

  1993.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1994.     /* audioIns  */ 32,

  1995.     /* audioOuts */ 32,

  1996.     /* midiIns   */ 1,

  1997.     /* midiOuts  */ 1,

  1998.     /* paramIns  */ 0,

  1999.     /* paramOuts */ 0,

  2000.     /* name      */ "Carla-Patchbay (32chan)",

  2001.     /* label     */ "carlapatchbay32",

  2002.     /* maker     */ "falkTX",

  2003.     /* copyright */ "GNU GPL v2+",

  2004.     CarlaEngineNative::_instantiatePatchbay32,

  2005.     CarlaEngineNative::_cleanup,

  2006.     CarlaEngineNative::_get_parameter_count,

  2007.     CarlaEngineNative::_get_parameter_info,

  2008.     CarlaEngineNative::_get_parameter_value,

  2009.     CarlaEngineNative::_get_midi_program_count,

  2010.     CarlaEngineNative::_get_midi_program_info,

  2011.     CarlaEngineNative::_set_parameter_value,

  2012.     CarlaEngineNative::_set_midi_program,

  2013.     /* _set_custom_data        */ nullptr,

  2014.     CarlaEngineNative::_ui_show,

  2015.     CarlaEngineNative::_ui_idle,

  2016.     /* _ui_set_parameter_value */ nullptr,

  2017.     /* _ui_set_midi_program    */ nullptr,

  2018.     /* _ui_set_custom_data     */ nullptr,

  2019.     CarlaEngineNative::_activate,

  2020.     CarlaEngineNative::_deactivate,

  2021.     CarlaEngineNative::_process,

  2022.     CarlaEngineNative::_get_state,

  2023.     CarlaEngineNative::_set_state,

  2024.     CarlaEngineNative::_dispatcher

  2025. };

  2026. 

  2027. CARLA_BACKEND_END_NAMESPACE

  2028. 

  2029. // -----------------------------------------------------------------------

  2030. 

  2031. CARLA_EXPORT

  2032. void carla_register_native_plugin_carla();

  2033. 

  2034. void carla_register_native_plugin_carla()

  2035. {

  2036.     CARLA_BACKEND_USE_NAMESPACE;

  2037.     carla_register_native_plugin(&carlaRackDesc);

  2038.     carla_register_native_plugin(&carlaPatchbayDesc);

  2039.     carla_register_native_plugin(&carlaPatchbay3sDesc);

  2040.     carla_register_native_plugin(&carlaPatchbay16Desc);

  2041.     carla_register_native_plugin(&carlaPatchbay32Desc);

  2042. }

  2043. 

  2044. // -----------------------------------------------------------------------

  2045. 

  2046. CARLA_EXPORT

  2047. const NativePluginDescriptor* carla_get_native_rack_plugin();

  2048. const NativePluginDescriptor* carla_get_native_rack_plugin()

  2049. {

  2050.     // if this is called then we're running as special plugin

  2051.     gNeedsJuceHandling = true;

  2052. 

  2053.     CARLA_BACKEND_USE_NAMESPACE;

  2054.     return &carlaRackDesc;

  2055. }

  2056. 

  2057. CARLA_EXPORT

  2058. const NativePluginDescriptor* carla_get_native_patchbay_plugin();

  2059. const NativePluginDescriptor* carla_get_native_patchbay_plugin()

  2060. {

  2061.     // if this is called then we're running as special plugin

  2062.     gNeedsJuceHandling = true;

  2063. 

  2064.     CARLA_BACKEND_USE_NAMESPACE;

  2065.     return &carlaPatchbayDesc;

  2066. }

  2067. 

  2068. // -----------------------------------------------------------------------

  2069. // Extra stuff for linking purposes

  2070. 

  2071. #ifdef CARLA_PLUGIN_EXPORT

  2072. 

  2073. CARLA_BACKEND_START_NAMESPACE

  2074. 

  2075. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  2076. 

  2077. # if defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN)

  2078. CarlaEngine*       CarlaEngine::newJuce(const AudioApi)           { return nullptr; }

  2079. uint               CarlaEngine::getJuceApiCount()                 { return 0;       }

  2080. const char*        CarlaEngine::getJuceApiName(const uint)        { return nullptr; }

  2081. const char* const* CarlaEngine::getJuceApiDeviceNames(const uint) { return nullptr; }

  2082. const EngineDriverDeviceInfo* CarlaEngine::getJuceDeviceInfo(const uint, const char* const) { return nullptr; }

  2083. # else

  2084. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi)           { return nullptr; }

  2085. uint               CarlaEngine::getRtAudioApiCount()                 { return 0;       }

  2086. const char*        CarlaEngine::getRtAudioApiName(const uint)        { return nullptr; }

  2087. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const uint) { return nullptr; }

  2088. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const uint, const char* const) { return nullptr; }

  2089. # endif

  2090. 

  2091. CARLA_BACKEND_END_NAMESPACE

  2092. 

  2093. #include "CarlaHostCommon.cpp"

  2094. #include "CarlaPluginUI.cpp"

  2095. #include "CarlaDssiUtils.cpp"

  2096. #include "CarlaPatchbayUtils.cpp"

  2097. #include "CarlaPipeUtils.cpp"

  2098. #include "CarlaStateUtils.cpp"

  2099. #include "CarlaJuceEvents.cpp"

  2100. 

  2101. #endif

  2102. 

  2103. // -----------------------------------------------------------------------