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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) 2011-2017 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_graph/juce_audio_graph.h"

  38. 

  39. using juce2::File;

  40. using juce2::MemoryOutputStream;

  41. using juce2::String;

  42. using juce2::XmlDocument;

  43. using juce2::XmlElement;

  44. 

  45. CARLA_BACKEND_START_NAMESPACE

  46. 

  47. // -----------------------------------------------------------------------

  48. 

  49. class CarlaEngineNativeUI : public CarlaExternalUI

  50. {

  51. public:

  52.     CarlaEngineNativeUI(CarlaEngine* const engine)

  53.         : fEngine(engine),

  54.           fRemoteWinId(0)

  55.     {

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

  57.     }

  58. 

  59.     ~CarlaEngineNativeUI() noexcept override

  60.     {

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

  62.     }

  63. 

  64.     bool isReady() const noexcept

  65.     {

  66.         return fRemoteWinId != 0;

  67.     }

  68. 

  69.     intptr_t getRemoteWinId() const noexcept

  70.     {

  71.         return fRemoteWinId;

  72.     }

  73. 

  74. protected:

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

  76.     {

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

  78.             return true;

  79. 

  80.         bool ok = true;

  81. 

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

  83.         {

  84.             uint32_t option;

  85.             int32_t value;

  86.             const char* valueStr = nullptr;

  87. 

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

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

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

  91. 

  92.             try {

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

  94.             } CARLA_SAFE_EXCEPTION("setOption");

  95. 

  96.             if (valueStr != nullptr)

  97.                 delete[] valueStr;

  98.         }

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

  100.         {

  101.             const char* filename;

  102. 

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

  104. 

  105.             try {

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

  107.             } CARLA_SAFE_EXCEPTION("loadFile");

  108. 

  109.             delete[] filename;

  110.         }

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

  112.         {

  113.             const char* filename;

  114. 

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

  116. 

  117.             try {

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

  119.             } CARLA_SAFE_EXCEPTION("loadProject");

  120. 

  121.             delete[] filename;

  122.         }

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

  124.         {

  125.             const char* filename;

  126. 

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

  128. 

  129.             try {

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

  131.             } CARLA_SAFE_EXCEPTION("saveProject");

  132. 

  133.             delete[] filename;

  134.         }

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

  136.         {

  137.             uint32_t groupA, portA, groupB, portB;

  138. 

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

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

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

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

  143. 

  144.             try {

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

  146.             } CARLA_SAFE_EXCEPTION("patchbayConnect");

  147.         }

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

  149.         {

  150.             uint32_t connectionId;

  151. 

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

  153. 

  154.             try {

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

  156.             } CARLA_SAFE_EXCEPTION("patchbayDisconnect");

  157.         }

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

  159.         {

  160.             try {

  161.                 ok = fEngine->patchbayRefresh();

  162.             } CARLA_SAFE_EXCEPTION("patchbayRefresh");

  163.         }

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

  165.         {

  166.             fEngine->transportPlay();

  167.         }

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

  169.         {

  170.             fEngine->transportPause();

  171.         }

  172.         else if (std::strcmp(msg, "transport_bpm") == 0)

  173.         {

  174.             double bpm;

  175. 

  176.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsDouble(bpm), true);

  177. 

  178.             fEngine->transportBPM(bpm);

  179.         }

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

  181.         {

  182.             uint64_t frame;

  183. 

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

  185. 

  186.             fEngine->transportRelocate(frame);

  187.         }

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

  189.         {

  190.             uint32_t btype, ptype;

  191.             const char* filename = nullptr;

  192.             const char* name;

  193.             const char* label;

  194.             int64_t uniqueId;

  195.             uint options;

  196. 

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

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

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

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

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

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

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

  204. 

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

  206.             {

  207.                 delete[] filename;

  208.                 filename = nullptr;

  209.             }

  210. 

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

  212.             {

  213.                 delete[] name;

  214.                 name = nullptr;

  215.             }

  216. 

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

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

  219. 

  220.             if (filename != nullptr)

  221.                 delete[] filename;

  222.             if (name != nullptr)

  223.                 delete[] name;

  224.             delete[] label;

  225.         }

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

  227.         {

  228.             uint32_t pluginId;

  229. 

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

  231. 

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

  233.         }

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

  235.         {

  236.             ok = fEngine->removeAllPlugins();

  237.         }

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

  239.         {

  240.             uint32_t pluginId;

  241.             const char* newName;

  242. 

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

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

  245. 

  246.             // TODO

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

  248. 

  249.             delete[] newName;

  250.         }

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

  252.         {

  253.             uint32_t pluginId;

  254. 

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

  256. 

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

  258.         }

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

  260.         {

  261.             uint32_t pluginId;

  262. 

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

  264. 

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

  266.         }

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

  268.         {

  269.             uint32_t pluginIdA, pluginIdB;

  270. 

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

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

  273. 

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

  275.         }

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

  277.         {

  278.             uint32_t pluginId;

  279.             const char* filename;

  280. 

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

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

  283. 

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

  285.                 plugin->loadStateFromFile(filename);

  286. 

  287.             delete[] filename;

  288.         }

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

  290.         {

  291.             uint32_t pluginId;

  292.             const char* filename;

  293. 

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

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

  296. 

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

  298.                 plugin->saveStateToFile(filename);

  299. 

  300.             delete[] filename;

  301.         }

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

  303.         {

  304.             uint32_t pluginId, option;

  305.             bool yesNo;

  306. 

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

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

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

  310. 

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

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

  313.         }

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

  315.         {

  316.             uint32_t pluginId;

  317.             bool onOff;

  318. 

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

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

  321. 

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

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

  324.         }

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

  326.         {

  327.             uint32_t pluginId;

  328.             float value;

  329. 

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

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

  332. 

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

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

  335.         }

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

  337.         {

  338.             uint32_t pluginId;

  339.             float value;

  340. 

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

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

  343. 

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

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

  346.         }

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

  348.         {

  349.             uint32_t pluginId;

  350.             float value;

  351. 

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

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

  354. 

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

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

  357.         }

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

  359.         {

  360.             uint32_t pluginId;

  361.             float value;

  362. 

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

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

  365. 

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

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

  368.         }

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

  370.         {

  371.             uint32_t pluginId;

  372.             float value;

  373. 

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

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

  376. 

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

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

  379.         }

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

  381.         {

  382.             uint32_t pluginId;

  383.             int32_t channel;

  384. 

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

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

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

  388. 

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

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

  391.         }

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

  393.         {

  394.             uint32_t pluginId, parameterId;

  395.             float value;

  396. 

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

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

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

  400. 

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

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

  403.         }

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

  405.         {

  406.             uint32_t pluginId, parameterId, channel;

  407. 

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

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

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

  411.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  412. 

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

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

  415.         }

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

  417.         {

  418.             uint32_t pluginId, parameterId;

  419.             int32_t cc;

  420. 

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

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

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

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

  425. 

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

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

  428.         }

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

  430.         {

  431.             uint32_t pluginId;

  432.             int32_t index;

  433. 

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

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

  436. 

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

  438.             {

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

  440.                 _updateParamValues(plugin, pluginId);

  441.             }

  442.         }

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

  444.         {

  445.             uint32_t pluginId;

  446.             int32_t index;

  447. 

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

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

  450. 

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

  452.             {

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

  454.                 _updateParamValues(plugin, pluginId);

  455.             }

  456.         }

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

  458.         {

  459.             uint32_t pluginId;

  460.             const char* type;

  461.             const char* key;

  462.             const char* value;

  463. 

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

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

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

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

  468. 

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

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

  471. 

  472.             delete[] type;

  473.             delete[] key;

  474.             delete[] value;

  475.         }

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

  477.         {

  478.             uint32_t pluginId;

  479.             const char* cdata;

  480. 

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

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

  483. 

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

  485.             {

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

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

  488.             }

  489. 

  490.             delete[] cdata;

  491.         }

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

  493.         {

  494.             uint32_t pluginId;

  495. 

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

  497. 

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

  499.                 plugin->prepareForSave();

  500.         }

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

  502.         {

  503.             uint32_t pluginId;

  504. 

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

  506. 

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

  508.                 plugin->resetParameters();

  509.         }

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

  511.         {

  512.             uint32_t pluginId;

  513. 

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

  515. 

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

  517.                 plugin->randomizeParameters();

  518.         }

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

  520.         {

  521.             uint32_t pluginId, channel, note, velocity;

  522. 

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

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

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

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

  527.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  528.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_VALUE, true);

  529.             CARLA_SAFE_ASSERT_RETURN(velocity < MAX_MIDI_VALUE, true);

  530. 

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

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

  533.         }

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

  535.         {

  536.             uint32_t pluginId;

  537.             bool yesNo;

  538. 

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

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

  541. 

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

  543.                 plugin->showCustomUI(yesNo);

  544.         }

  545.         else if (std::strcmp(msg, "ready") == 0)

  546.         {

  547.             uint64_t winId;

  548. 

  549.             CARLA_SAFE_ASSERT_RETURN(readNextLineAsULong(winId), true);

  550. 

  551.             fRemoteWinId = static_cast<intptr_t>(winId);

  552.         }

  553.         else

  554.         {

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

  556.             return false;

  557.         }

  558. 

  559.         if (! ok)

  560.         {

  561.             const CarlaMutexLocker cml(getPipeLock());

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

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

  564.             flushMessages();

  565.         }

  566. 

  567.         return true;

  568.     }

  569. 

  570. private:

  571.     CarlaEngine* const fEngine;

  572.     intptr_t           fRemoteWinId;

  573. 

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

  575.     {

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

  577.             fEngine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,

  578.                               pluginId, static_cast<int>(i), 0, plugin->getParameterValue(i), nullptr);

  579.     }

  580. 

  581.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  582. };

  583. 

  584. // -----------------------------------------------------------------------

  585. 

  586. class CarlaEngineNative : public CarlaEngine

  587. {

  588. public:

  589.     CarlaEngineNative(const NativeHostDescriptor* const host, const uint32_t inChan = 2, uint32_t outChan = 0)

  590.         : CarlaEngine(),

  591.           pHost(host),

  592.           fIsActive(false),

  593.           fIsRunning(false),

  594.           fUiServer(this),

  595.           fOptionsForced(false),

  596.           fWaitForReadyMsg(false)

  597.     {

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

  599. 

  600.         carla_zeroChars(fTmpBuf, STR_MAX+1);

  601. 

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

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

  604.         pData->initTime(nullptr);

  605. 

  606.         if (outChan == 0)

  607.             outChan = inChan;

  608. 

  609.         CARLA_SAFE_ASSERT(inChan == 2);

  610.         CARLA_SAFE_ASSERT(outChan == 2);

  611.         pData->options.processMode         = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;

  612.         pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  613.         pData->options.forceStereo         = true;

  614.         pData->options.preferPluginBridges = false;

  615.         pData->options.preferUiBridges     = false;

  616.         init("Carla-Rack");

  617.         pData->graph.create(0, 0); // FIXME?

  618. 

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

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

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

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

  623. 

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

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

  626. 

  627.         setCallback(_ui_server_callback, this);

  628.     }

  629. 

  630.     ~CarlaEngineNative() override

  631.     {

  632.         CARLA_SAFE_ASSERT(! fIsActive);

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

  634. 

  635.         pData->aboutToClose = true;

  636.         fIsRunning = false;

  637. 

  638.         removeAllPlugins();

  639.         //runPendingRtEvents();

  640.         close();

  641. 

  642.         pData->graph.destroy();

  643. 

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

  645.     }

  646. 

  647. protected:

  648.     // -------------------------------------

  649.     // CarlaEngine virtual calls

  650. 

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

  652.     {

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

  654. 

  655.         fIsRunning = true;

  656. 

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

  658.         {

  659.             close();

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

  661.             return false;

  662.         }

  663. 

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

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

  666. 

  667.         return true;

  668.     }

  669. 

  670.     bool close() override

  671.     {

  672.         fIsRunning = false;

  673.         CarlaEngine::close();

  674.         return true;

  675.     }

  676. 

  677.     bool isRunning() const noexcept override

  678.     {

  679.         return fIsRunning;

  680.     }

  681. 

  682.     bool isOffline() const noexcept override

  683.     {

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

  685.     }

  686. 

  687.     bool usesConstantBufferSize() const noexcept override

  688.     {

  689.         // TODO

  690.         return true;

  691.     }

  692. 

  693.     EngineType getType() const noexcept override

  694.     {

  695.         return kEngineTypePlugin;

  696.     }

  697. 

  698.     const char* getCurrentDriverName() const noexcept override

  699.     {

  700.         return "Plugin";

  701.     }

  702. 

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

  704.     {

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

  706. 

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

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

  709.     }

  710. 

  711.     // -------------------------------------------------------------------

  712. 

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

  714.     {

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

  716.         {

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

  718.             return retName;

  719.         }

  720. 

  721.         return nullptr;

  722.     }

  723. 

  724.     // -------------------------------------------------------------------

  725. 

  726.     void bufferSizeChanged(const uint32_t newBufferSize)

  727.     {

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

  729.             return;

  730. 

  731.         {

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

  733. 

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

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

  736.             fUiServer.writeMessage(fTmpBuf);

  737.             fUiServer.flushMessages();

  738.         }

  739. 

  740.         pData->bufferSize = newBufferSize;

  741.         CarlaEngine::bufferSizeChanged(newBufferSize);

  742.     }

  743. 

  744.     void sampleRateChanged(const double newSampleRate)

  745.     {

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

  747.             return;

  748. 

  749.         {

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

  751.             const ScopedLocale csl;

  752. 

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

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

  755.             fUiServer.writeMessage(fTmpBuf);

  756.             fUiServer.flushMessages();

  757.         }

  758. 

  759.         pData->sampleRate = newSampleRate;

  760.         CarlaEngine::sampleRateChanged(newSampleRate);

  761.     }

  762. 

  763.     // -------------------------------------------------------------------

  764. 

  765.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  766.     {

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

  768. 

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

  770. 

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

  772.         fUiServer.writeMessage(fTmpBuf);

  773. 

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

  775.         fUiServer.writeMessage(fTmpBuf);

  776. 

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

  778.         {

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

  780.             fUiServer.writeAndFixMessage(fTmpBuf);

  781.         }

  782.         else

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

  784. 

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

  786.         {

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

  788.             fUiServer.writeAndFixMessage(fTmpBuf);

  789.         }

  790.         else

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

  792. 

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

  794.         {

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

  796.             fUiServer.writeAndFixMessage(fTmpBuf);

  797.         }

  798.         else

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

  800. 

  801.         plugin->getRealName(fTmpBuf);

  802.         fUiServer.writeAndFixMessage(fTmpBuf);

  803. 

  804.         plugin->getLabel(fTmpBuf);

  805.         fUiServer.writeAndFixMessage(fTmpBuf);

  806. 

  807.         plugin->getMaker(fTmpBuf);

  808.         fUiServer.writeAndFixMessage(fTmpBuf);

  809. 

  810.         plugin->getCopyright(fTmpBuf);

  811.         fUiServer.writeAndFixMessage(fTmpBuf);

  812. 

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

  814.         fUiServer.writeMessage(fTmpBuf);

  815. 

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

  817.         fUiServer.writeMessage(fTmpBuf);

  818. 

  819.         fUiServer.flushMessages();

  820.     }

  821. 

  822.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  823.     {

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

  825.         const ScopedLocale csl;

  826. 

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

  828. 

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

  830.         {

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

  832.             fUiServer.writeMessage(fTmpBuf);

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

  834.             fUiServer.writeMessage(fTmpBuf);

  835.             fUiServer.flushMessages();

  836.         }

  837. 

  838.         uint32_t ins, outs, count;

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

  840.         count = plugin->getParameterCount();

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

  842.         fUiServer.writeMessage(fTmpBuf);

  843. 

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

  845.         {

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

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

  848. 

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

  850.             fUiServer.writeMessage(fTmpBuf);

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

  852.             fUiServer.writeMessage(fTmpBuf);

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

  854.             fUiServer.writeAndFixMessage(fTmpBuf);

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

  856.             fUiServer.writeAndFixMessage(fTmpBuf);

  857. 

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

  859.             fUiServer.writeMessage(fTmpBuf);

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

  861.             fUiServer.writeMessage(fTmpBuf);

  862. 

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

  864.             fUiServer.writeMessage(fTmpBuf);

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

  866.             fUiServer.writeMessage(fTmpBuf);

  867.         }

  868. 

  869.         fUiServer.flushMessages();

  870.     }

  871. 

  872.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  873.     {

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

  875. 

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

  877. 

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

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

  880.         fUiServer.writeMessage(fTmpBuf);

  881. 

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

  883.         {

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

  885.             fUiServer.writeMessage(fTmpBuf);

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

  887.             fUiServer.writeAndFixMessage(fTmpBuf);

  888.         }

  889. 

  890.         fUiServer.flushMessages();

  891. 

  892.         count = plugin->getMidiProgramCount();

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

  894.         fUiServer.writeMessage(fTmpBuf);

  895. 

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

  897.         {

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

  899.             fUiServer.writeMessage(fTmpBuf);

  900. 

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

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

  903.             fUiServer.writeMessage(fTmpBuf);

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

  905.             fUiServer.writeAndFixMessage(fTmpBuf);

  906.         }

  907. 

  908.         fUiServer.flushMessages();

  909.     }

  910. 

  911.     void uiServerSendPluginProperties(CarlaPlugin* const plugin)

  912.     {

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

  914. 

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

  916. 

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

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

  919.         fUiServer.writeMessage(fTmpBuf);

  920. 

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

  922.         {

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

  924.             CARLA_SAFE_ASSERT_CONTINUE(customData.isValid());

  925. 

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

  927.                 continue;

  928. 

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

  930.             fUiServer.writeMessage(fTmpBuf);

  931. 

  932.             fUiServer.writeAndFixMessage(customData.type);

  933.             fUiServer.writeAndFixMessage(customData.key);

  934.             fUiServer.writeAndFixMessage(customData.value);

  935.         }

  936. 

  937.         fUiServer.flushMessages();

  938.     }

  939. 

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

  941.     {

  942.         if (! fIsRunning)

  943.             return;

  944.         if (! fUiServer.isPipeRunning())

  945.             return;

  946. 

  947.         CarlaPlugin* plugin;

  948. 

  949.         switch (action)

  950.         {

  951.         case ENGINE_CALLBACK_UPDATE:

  952.             plugin = getPlugin(pluginId);

  953. 

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

  955.             {

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

  957.                 uiServerSendPluginProperties(plugin);

  958.             }

  959.             break;

  960. 

  961.         case ENGINE_CALLBACK_RELOAD_INFO:

  962.             plugin = getPlugin(pluginId);

  963. 

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

  965.             {

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

  967.                 uiServerSendPluginInfo(plugin);

  968.             }

  969.             break;

  970. 

  971.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  972.             plugin = getPlugin(pluginId);

  973. 

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

  975.             {

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

  977.                 uiServerSendPluginParameters(plugin);

  978.             }

  979.             break;

  980. 

  981.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  982.             plugin = getPlugin(pluginId);

  983. 

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

  985.             {

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

  987.                 uiServerSendPluginPrograms(plugin);

  988.             }

  989.             break;

  990. 

  991.         case ENGINE_CALLBACK_RELOAD_ALL:

  992.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  993.             plugin = getPlugin(pluginId);

  994. 

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

  996.             {

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

  998.                 uiServerSendPluginInfo(plugin);

  999.                 uiServerSendPluginParameters(plugin);

  1000.                 uiServerSendPluginPrograms(plugin);

  1001.                 uiServerSendPluginProperties(plugin);

  1002.             }

  1003.             break;

  1004. 

  1005.         default:

  1006.             break;

  1007.         }

  1008. 

  1009.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1010.         const ScopedLocale csl;

  1011. 

  1012.         std::sprintf(fTmpBuf, "ENGINE_CALLBACK_%i\n", int(action));

  1013.         fUiServer.writeMessage(fTmpBuf);

  1014. 

  1015.         std::sprintf(fTmpBuf, "%u\n", pluginId);

  1016.         fUiServer.writeMessage(fTmpBuf);

  1017. 

  1018.         std::sprintf(fTmpBuf, "%i\n", value1);

  1019.         fUiServer.writeMessage(fTmpBuf);

  1020. 

  1021.         std::sprintf(fTmpBuf, "%i\n", value2);

  1022.         fUiServer.writeMessage(fTmpBuf);

  1023. 

  1024.         std::sprintf(fTmpBuf, "%f\n", value3);

  1025.         fUiServer.writeMessage(fTmpBuf);

  1026. 

  1027.         fUiServer.writeAndFixMessage(valueStr != nullptr ? valueStr : "");

  1028. 

  1029.         fUiServer.flushMessages();

  1030.     }

  1031. 

  1032.     void uiServerInfo()

  1033.     {

  1034.         CARLA_SAFE_ASSERT_RETURN(fIsRunning,);

  1035.         CARLA_SAFE_ASSERT_RETURN(fUiServer.isPipeRunning(),);

  1036. 

  1037.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1038. 

  1039. #ifdef HAVE_LIBLO

  1040.         fUiServer.writeAndFixMessage("osc-urls");

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

  1042.         fUiServer.writeAndFixMessage(pData->osc.getServerPathUDP());

  1043. #endif

  1044. 

  1045.         fUiServer.writeAndFixMessage("max-plugin-number");

  1046.         std::sprintf(fTmpBuf, "%i\n", pData->maxPluginNumber);

  1047.         fUiServer.writeMessage(fTmpBuf);

  1048. 

  1049.         fUiServer.writeAndFixMessage("buffer-size");

  1050.         std::sprintf(fTmpBuf, "%i\n", pData->bufferSize);

  1051.         fUiServer.writeMessage(fTmpBuf);

  1052. 

  1053.         const ScopedLocale csl;

  1054. 

  1055.         fUiServer.writeAndFixMessage("sample-rate");

  1056.         std::sprintf(fTmpBuf, "%f\n", pData->sampleRate);

  1057.         fUiServer.writeMessage(fTmpBuf);

  1058. 

  1059.         fUiServer.flushMessages();

  1060.     }

  1061. 

  1062.     void uiServerOptions()

  1063.     {

  1064.         CARLA_SAFE_ASSERT_RETURN(fIsRunning,);

  1065.         CARLA_SAFE_ASSERT_RETURN(fUiServer.isPipeRunning(),);

  1066. 

  1067.         const EngineOptions& options(pData->options);

  1068.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1069. 

  1070.         const char* const optionsForcedStr(fOptionsForced ? "true\n" : "false\n");

  1071.         const std::size_t optionsForcedStrSize(fOptionsForced ? 5 : 6);

  1072. 

  1073.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PROCESS_MODE);

  1074.         fUiServer.writeMessage(fTmpBuf);

  1075.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1076.         std::sprintf(fTmpBuf, "%i\n", options.processMode);

  1077.         fUiServer.writeMessage(fTmpBuf);

  1078.         fUiServer.flushMessages();

  1079. 

  1080.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_TRANSPORT_MODE);

  1081.         fUiServer.writeMessage(fTmpBuf);

  1082.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1083.         std::sprintf(fTmpBuf, "%i\n", options.transportMode);

  1084.         fUiServer.writeMessage(fTmpBuf);

  1085.         fUiServer.flushMessages();

  1086. 

  1087.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_FORCE_STEREO);

  1088.         fUiServer.writeMessage(fTmpBuf);

  1089.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1090.         fUiServer.writeMessage(options.forceStereo ? "true\n" : "false\n");

  1091.         fUiServer.flushMessages();

  1092. 

  1093.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PREFER_PLUGIN_BRIDGES);

  1094.         fUiServer.writeMessage(fTmpBuf);

  1095.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1096.         fUiServer.writeMessage(options.preferPluginBridges ? "true\n" : "false\n");

  1097.         fUiServer.flushMessages();

  1098. 

  1099.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PREFER_UI_BRIDGES);

  1100.         fUiServer.writeMessage(fTmpBuf);

  1101.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1102.         fUiServer.writeMessage(options.preferUiBridges ? "true\n" : "false\n");

  1103.         fUiServer.flushMessages();

  1104. 

  1105.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_UIS_ALWAYS_ON_TOP);

  1106.         fUiServer.writeMessage(fTmpBuf);

  1107.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1108.         fUiServer.writeMessage(options.uisAlwaysOnTop ? "true\n" : "false\n");

  1109.         fUiServer.flushMessages();

  1110. 

  1111.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_MAX_PARAMETERS);

  1112.         fUiServer.writeMessage(fTmpBuf);

  1113.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1114.         std::sprintf(fTmpBuf, "%i\n", options.maxParameters);

  1115.         fUiServer.writeMessage(fTmpBuf);

  1116.         fUiServer.flushMessages();

  1117. 

  1118.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_UI_BRIDGES_TIMEOUT);

  1119.         fUiServer.writeMessage(fTmpBuf);

  1120.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1121.         std::sprintf(fTmpBuf, "%i\n", options.uiBridgesTimeout);

  1122.         fUiServer.writeMessage(fTmpBuf);

  1123.         fUiServer.flushMessages();

  1124. 

  1125.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PATH_BINARIES);

  1126.         fUiServer.writeMessage(fTmpBuf);

  1127.         fUiServer.writeMessage("true\n", 5);

  1128.         std::sprintf(fTmpBuf, "%s\n", options.binaryDir);

  1129.         fUiServer.writeMessage(fTmpBuf);

  1130.         fUiServer.flushMessages();

  1131. 

  1132.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PATH_RESOURCES);

  1133.         fUiServer.writeMessage(fTmpBuf);

  1134.         fUiServer.writeMessage("true\n", 5);

  1135.         std::sprintf(fTmpBuf, "%s\n", options.resourceDir);

  1136.         fUiServer.writeMessage(fTmpBuf);

  1137.         fUiServer.flushMessages();

  1138.     }

  1139. 

  1140.     // -------------------------------------------------------------------

  1141.     // Plugin parameter calls

  1142. 

  1143.     uint32_t getParameterCount() const

  1144.     {

  1145.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1146.             return plugin->getParameterCount();

  1147. 

  1148.         return 0;

  1149.     }

  1150. 

  1151.     const NativeParameter* getParameterInfo(const uint32_t index) const

  1152.     {

  1153.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1154.         {

  1155.             if (index < plugin->getParameterCount())

  1156.             {

  1157.                 static NativeParameter param;

  1158.                 static char strBufName[STR_MAX+1];

  1159.                 static char strBufUnit[STR_MAX+1];

  1160. 

  1161.                 const ParameterData& paramData(plugin->getParameterData(index));

  1162.                 const ParameterRanges& paramRanges(plugin->getParameterRanges(index));

  1163. 

  1164.                 plugin->getParameterName(index, strBufName);

  1165.                 plugin->getParameterUnit(index, strBufUnit);

  1166. 

  1167.                 uint hints = 0x0;

  1168. 

  1169.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  1170.                     hints |= NATIVE_PARAMETER_IS_BOOLEAN;

  1171.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  1172.                     hints |= NATIVE_PARAMETER_IS_INTEGER;

  1173.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  1174.                     hints |= NATIVE_PARAMETER_IS_LOGARITHMIC;

  1175.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  1176.                     hints |= NATIVE_PARAMETER_IS_AUTOMABLE;

  1177.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  1178.                     hints |= NATIVE_PARAMETER_USES_SAMPLE_RATE;

  1179.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  1180.                     hints |= NATIVE_PARAMETER_USES_SCALEPOINTS;

  1181. 

  1182.                 if (paramData.type == PARAMETER_INPUT || paramData.type == PARAMETER_OUTPUT)

  1183.                 {

  1184.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  1185.                         hints |= NATIVE_PARAMETER_IS_ENABLED;

  1186.                     if (paramData.type == PARAMETER_OUTPUT)

  1187.                         hints |= NATIVE_PARAMETER_IS_OUTPUT;

  1188.                 }

  1189. 

  1190.                 param.hints = static_cast<NativeParameterHints>(hints);

  1191.                 param.name  = strBufName;

  1192.                 param.unit  = strBufUnit;

  1193.                 param.ranges.def = paramRanges.def;

  1194.                 param.ranges.min = paramRanges.min;

  1195.                 param.ranges.max = paramRanges.max;

  1196.                 param.ranges.step = paramRanges.step;

  1197.                 param.ranges.stepSmall = paramRanges.stepSmall;

  1198.                 param.ranges.stepLarge = paramRanges.stepLarge;

  1199.                 param.scalePointCount = 0; // TODO

  1200.                 param.scalePoints = nullptr;

  1201. 

  1202.                 return &param;

  1203.             }

  1204.         }

  1205. 

  1206.         return nullptr;

  1207.     }

  1208. 

  1209.     float getParameterValue(const uint32_t index) const

  1210.     {

  1211.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1212.         {

  1213.             if (index < plugin->getParameterCount())

  1214.                 return plugin->getParameterValue(index);

  1215.         }

  1216. 

  1217.         return 0.0f;

  1218.     }

  1219. 

  1220.     // -------------------------------------------------------------------

  1221.     // Plugin midi-program calls

  1222. 

  1223.     uint32_t getMidiProgramCount() const

  1224.     {

  1225.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1226.             return plugin->getMidiProgramCount();

  1227. 

  1228.         return 0;

  1229.     }

  1230. 

  1231.     const NativeMidiProgram* getMidiProgramInfo(const uint32_t index) const

  1232.     {

  1233.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1234.         {

  1235.             if (index < plugin->getMidiProgramCount())

  1236.             {

  1237.                 static NativeMidiProgram midiProg;

  1238. 

  1239.                 {

  1240.                     const MidiProgramData& midiProgData(plugin->getMidiProgramData(index));

  1241. 

  1242.                     midiProg.bank    = midiProgData.bank;

  1243.                     midiProg.program = midiProgData.program;

  1244.                     midiProg.name    = midiProgData.name;

  1245.                 }

  1246. 

  1247.                 return &midiProg;

  1248.             }

  1249.         }

  1250. 

  1251.         return nullptr;

  1252.     }

  1253. 

  1254.     // -------------------------------------------------------------------

  1255.     // Plugin state calls

  1256. 

  1257.     void setParameterValue(const uint32_t index, const float value)

  1258.     {

  1259.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1260.         {

  1261.             if (index < plugin->getParameterCount())

  1262.                 plugin->setParameterValue(index, value, false, false, false);

  1263.         }

  1264.     }

  1265. 

  1266.     void setMidiProgram(const uint8_t, const uint32_t bank, const uint32_t program)

  1267.     {

  1268.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1269.             plugin->setMidiProgramById(bank, program, false, false, false);

  1270.     }

  1271. 

  1272.     // -------------------------------------------------------------------

  1273.     // Plugin process calls

  1274. 

  1275.     void activate()

  1276.     {

  1277. #if 0

  1278.         for (uint i=0; i < pData->curPluginCount; ++i)

  1279.         {

  1280.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1281. 

  1282.             if (plugin == nullptr || ! plugin->isEnabled())

  1283.                 continue;

  1284. 

  1285.             plugin->setActive(true, true, false);

  1286.         }

  1287. #endif

  1288.         fIsActive = true;

  1289.     }

  1290. 

  1291.     void deactivate()

  1292.     {

  1293.         fIsActive = false;

  1294. #if 0

  1295.         for (uint i=0; i < pData->curPluginCount; ++i)

  1296.         {

  1297.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1298. 

  1299.             if (plugin == nullptr || ! plugin->isEnabled())

  1300.                 continue;

  1301. 

  1302.             plugin->setActive(false, true, false);

  1303.         }

  1304. #endif

  1305. 

  1306.         // just in case

  1307.         //runPendingRtEvents();

  1308.     }

  1309. 

  1310.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames,

  1311.                  const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1312.     {

  1313.         const PendingRtEventsRunner prt(this, frames);

  1314. 

  1315.         // ---------------------------------------------------------------

  1316.         // Time Info

  1317. 

  1318.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1319. 

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

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

  1322.         pData->timeInfo.usecs   = timeInfo->usecs;

  1323.         pData->timeInfo.valid   = 0x0;

  1324. 

  1325.         if (timeInfo->bbt.valid)

  1326.         {

  1327.             pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;

  1328. 

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

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

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

  1332.             pData->timeInfo.bbt.barStartTick = timeInfo->bbt.barStartTick;

  1333. 

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

  1335.             pData->timeInfo.bbt.beatType = timeInfo->bbt.beatType;

  1336. 

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

  1338.             pData->timeInfo.bbt.beatsPerMinute = timeInfo->bbt.beatsPerMinute;

  1339.         }

  1340. 

  1341.         // ---------------------------------------------------------------

  1342.         // Do nothing if no plugins and rack mode

  1343. 

  1344.         if (pData->curPluginCount == 0)

  1345.         {

  1346.             if (outBuffer[0] != inBuffer[0])

  1347.                 carla_copyFloats(outBuffer[0], inBuffer[0], frames);

  1348. 

  1349.             if (outBuffer[1] != inBuffer[1])

  1350.                 carla_copyFloats(outBuffer[1], inBuffer[1], frames);

  1351. 

  1352.             for (uint32_t i=0; i < midiEventCount; ++i)

  1353.             {

  1354.                 if (! pHost->write_midi_event(pHost->handle, &midiEvents[i]))

  1355.                     break;

  1356.             }

  1357.             return;

  1358.         }

  1359. 

  1360.         // ---------------------------------------------------------------

  1361.         // initialize events

  1362. 

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

  1364.         carla_zeroStructs(pData->events.out, kMaxEngineEventInternalCount);

  1365. 

  1366.         // ---------------------------------------------------------------

  1367.         // events input (before processing)

  1368. 

  1369.         {

  1370.             uint32_t engineEventIndex = 0;

  1371. 

  1372.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kMaxEngineEventInternalCount; ++i)

  1373.             {

  1374.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1375.                 EngineEvent&           engineEvent(pData->events.in[engineEventIndex++]);

  1376. 

  1377.                 engineEvent.time = midiEvent.time;

  1378.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data, 0);

  1379. 

  1380.                 if (engineEventIndex >= kMaxEngineEventInternalCount)

  1381.                     break;

  1382.             }

  1383.         }

  1384. 

  1385.         {

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

  1387.             // create audio buffers

  1388. 

  1389.             const float* inBuf[2]  = {  inBuffer[0],  inBuffer[1] };

  1390.             /* */ float* outBuf[2] = { outBuffer[0], outBuffer[1] };

  1391. 

  1392.             // -----------------------------------------------------------

  1393.             // process

  1394. 

  1395.             pData->graph.processRack(pData, inBuf, outBuf, frames);

  1396.         }

  1397. 

  1398.         // ---------------------------------------------------------------

  1399.         // events output (after processing)

  1400. 

  1401.         carla_zeroStructs(pData->events.in, kMaxEngineEventInternalCount);

  1402. 

  1403.         {

  1404.             NativeMidiEvent midiEvent;

  1405. 

  1406.             for (uint32_t i=0; i < kMaxEngineEventInternalCount; ++i)

  1407.             {

  1408.                 const EngineEvent& engineEvent(pData->events.out[i]);

  1409. 

  1410.                 if (engineEvent.type == kEngineEventTypeNull)

  1411.                     break;

  1412. 

  1413.                 midiEvent.time = engineEvent.time;

  1414. 

  1415.                 if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)

  1416.                 {

  1417.                     midiEvent.port = 0;

  1418.                     engineEvent.ctrl.convertToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);

  1419.                 }

  1420.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1421.                 {

  1422.                     if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)

  1423.                         continue;

  1424. 

  1425.                     midiEvent.port = engineEvent.midi.port;

  1426.                     midiEvent.size = engineEvent.midi.size;

  1427. 

  1428.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);

  1429. 

  1430.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1431.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1432.                 }

  1433.                 else

  1434.                 {

  1435.                     carla_stderr("Unknown event type...");

  1436.                     continue;

  1437.                 }

  1438. 

  1439.                 pHost->write_midi_event(pHost->handle, &midiEvent);

  1440.             }

  1441.         }

  1442.     }

  1443. 

  1444.     // -------------------------------------------------------------------

  1445.     // Plugin UI calls

  1446. 

  1447.     void uiShow(const bool show)

  1448.     {

  1449.         if (show)

  1450.         {

  1451.             if (fUiServer.isPipeRunning())

  1452.             {

  1453.                 fUiServer.writeFocusMessage();

  1454.                 return;

  1455.             }

  1456. 

  1457.             CarlaString path(pHost->resourceDir);

  1458. 

  1459.             path += CARLA_OS_SEP_STR "carla-plugin";

  1460. #ifdef CARLA_OS_WIN

  1461.             path += ".exe";

  1462. #endif

  1463.             carla_stdout("Trying to start carla-plugin using \"%s\"", path.buffer());

  1464. 

  1465.             fUiServer.setData(path, pData->sampleRate, pHost->uiName);

  1466. 

  1467.             if (! fUiServer.startPipeServer(false))

  1468.             {

  1469.                 pHost->dispatcher(pHost->handle, NATIVE_HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1470.                 return;

  1471.             }

  1472. 

  1473.             uiServerInfo();

  1474.             uiServerOptions();

  1475.             uiServerCallback(ENGINE_CALLBACK_ENGINE_STARTED, 0, pData->options.processMode, pData->options.transportMode, 0.0f, "Plugin");

  1476. 

  1477.             fUiServer.writeShowMessage();

  1478. 

  1479.             for (uint i=0; i < pData->curPluginCount; ++i)

  1480.             {

  1481.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1482. 

  1483.                 if (plugin != nullptr && plugin->isEnabled())

  1484.                 {

  1485.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());

  1486.                 }

  1487.             }

  1488. 

  1489.             if (fWaitForReadyMsg)

  1490.             {

  1491.                 carla_stdout("Using Carla plugin embedded, waiting for it to be ready...");

  1492. 

  1493.                 for (; fUiServer.isPipeRunning() && ! fUiServer.isReady();)

  1494.                 {

  1495.                     carla_msleep(25);

  1496.                     fUiServer.idlePipe();

  1497.                 }

  1498. 

  1499.                 carla_stdout("Done!");

  1500.             }

  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.                 const uint hints(plugin->getHints());

  1533. 

  1534.                 if ((hints & PLUGIN_HAS_CUSTOM_UI) != 0 && (hints & PLUGIN_NEEDS_UI_MAIN_THREAD) != 0)

  1535.                 {

  1536.                     try {

  1537.                         plugin->uiIdle();

  1538.                     } CARLA_SAFE_EXCEPTION_CONTINUE("Plugin uiIdle");

  1539.                 }

  1540.             }

  1541.         }

  1542. 

  1543.         if (fUiServer.isPipeRunning())

  1544.         {

  1545.             fUiServer.idlePipe();

  1546. 

  1547.             const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1548. #ifndef CARLA_OS_WIN

  1549.             const EngineTimeInfo& timeInfo(pData->timeInfo);

  1550.             const ScopedLocale csl;

  1551. 

  1552.             // send transport

  1553.             fUiServer.writeAndFixMessage("transport");

  1554.             fUiServer.writeMessage(timeInfo.playing ? "true\n" : "false\n");

  1555. 

  1556.             if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1557.             {

  1558.                 std::sprintf(fTmpBuf, P_UINT64 ":%i:%i:%i\n", timeInfo.frame, timeInfo.bbt.bar, timeInfo.bbt.beat, timeInfo.bbt.tick);

  1559.                 fUiServer.writeMessage(fTmpBuf);

  1560.                 std::sprintf(fTmpBuf, "%f\n", timeInfo.bbt.beatsPerMinute);

  1561.                 fUiServer.writeMessage(fTmpBuf);

  1562.             }

  1563.             else

  1564.             {

  1565.                 std::sprintf(fTmpBuf, P_UINT64 ":0:0:0\n", timeInfo.frame);

  1566.                 fUiServer.writeMessage(fTmpBuf);

  1567.                 fUiServer.writeMessage("0.0\n");

  1568.             }

  1569. 

  1570.             fUiServer.flushMessages();

  1571. #endif

  1572. 

  1573.             // send peaks and param outputs for all plugins

  1574.             for (uint i=0; i < pData->curPluginCount; ++i)

  1575.             {

  1576.                 const EnginePluginData& plugData(pData->plugins[i]);

  1577.                 const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1578. 

  1579.                 std::sprintf(fTmpBuf, "PEAKS_%i\n", i);

  1580.                 fUiServer.writeMessage(fTmpBuf);

  1581. 

  1582.                 std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);

  1583.                 fUiServer.writeMessage(fTmpBuf);

  1584.                 fUiServer.flushMessages();

  1585. 

  1586.                 for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1587.                 {

  1588.                     if (! plugin->isParameterOutput(j))

  1589.                         continue;

  1590. 

  1591.                     std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1592.                     fUiServer.writeMessage(fTmpBuf);

  1593.                     std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));

  1594.                     fUiServer.writeMessage(fTmpBuf);

  1595.                     fUiServer.flushMessages();

  1596.                 }

  1597.             }

  1598.         }

  1599. 

  1600.         switch (fUiServer.getAndResetUiState())

  1601.         {

  1602.         case CarlaExternalUI::UiNone:

  1603.         case CarlaExternalUI::UiShow:

  1604.             break;

  1605.         case CarlaExternalUI::UiCrashed:

  1606.             pHost->dispatcher(pHost->handle, NATIVE_HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1607.             break;

  1608.         case CarlaExternalUI::UiHide:

  1609.             pHost->ui_closed(pHost->handle);

  1610.             fUiServer.stopPipeServer(1000);

  1611.             break;

  1612.         }

  1613.     }

  1614. 

  1615.     // -------------------------------------------------------------------

  1616.     // Plugin state calls

  1617. 

  1618.     char* getState() const

  1619.     {

  1620.         MemoryOutputStream out;

  1621.         saveProjectInternal(out);

  1622.         return strdup(out.toString().toRawUTF8());

  1623.     }

  1624. 

  1625.     void setState(const char* const data)

  1626.     {

  1627.         // remove all plugins from UI side

  1628.         for (uint i=0, count=pData->curPluginCount; i < count; ++i)

  1629.             CarlaEngine::callback(ENGINE_CALLBACK_PLUGIN_REMOVED, count-i-1, 0, 0, 0.0f, nullptr);

  1630. 

  1631.         // remove all plugins from backend, no lock

  1632.         fIsRunning = false;

  1633.         removeAllPlugins();

  1634.         fIsRunning = true;

  1635. 

  1636.         // stopped during removeAllPlugins()

  1637.         if (! pData->thread.isThreadRunning())

  1638.             pData->thread.startThread();

  1639. 

  1640.         fOptionsForced = true;

  1641.         const String state(data);

  1642.         XmlDocument xml(state);

  1643.         loadProjectInternal(xml);

  1644.     }

  1645. 

  1646.     // -------------------------------------------------------------------

  1647. 

  1648. public:

  1649.     #define handlePtr ((CarlaEngineNative*)handle)

  1650. 

  1651.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1652.     {

  1653.         return new CarlaEngineNative(host, false);

  1654.     }

  1655. 

  1656.     static void _cleanup(NativePluginHandle handle)

  1657.     {

  1658.         delete handlePtr;

  1659.     }

  1660. 

  1661.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1662.     {

  1663.         return handlePtr->getParameterCount();

  1664.     }

  1665. 

  1666.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1667.     {

  1668.         return handlePtr->getParameterInfo(index);

  1669.     }

  1670. 

  1671.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1672.     {

  1673.         return handlePtr->getParameterValue(index);

  1674.     }

  1675. 

  1676.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1677.     {

  1678.         return handlePtr->getMidiProgramCount();

  1679.     }

  1680. 

  1681.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1682.     {

  1683.         return handlePtr->getMidiProgramInfo(index);

  1684.     }

  1685. 

  1686.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1687.     {

  1688.         handlePtr->setParameterValue(index, value);

  1689.     }

  1690. 

  1691.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1692.     {

  1693.         handlePtr->setMidiProgram(channel, bank, program);

  1694.     }

  1695. 

  1696.     static void _ui_show(NativePluginHandle handle, bool show)

  1697.     {

  1698.         handlePtr->uiShow(show);

  1699.     }

  1700. 

  1701.     static void _ui_idle(NativePluginHandle handle)

  1702.     {

  1703.         handlePtr->uiIdle();

  1704.     }

  1705. 

  1706.     static void _activate(NativePluginHandle handle)

  1707.     {

  1708.         handlePtr->activate();

  1709.     }

  1710. 

  1711.     static void _deactivate(NativePluginHandle handle)

  1712.     {

  1713.         handlePtr->deactivate();

  1714.     }

  1715. 

  1716.     static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1717.     {

  1718.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1719.     }

  1720. 

  1721.     static char* _get_state(NativePluginHandle handle)

  1722.     {

  1723.         return handlePtr->getState();

  1724.     }

  1725. 

  1726.     static void _set_state(NativePluginHandle handle, const char* data)

  1727.     {

  1728.         handlePtr->setState(data);

  1729.     }

  1730. 

  1731.     static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1732.     {

  1733.         switch(opcode)

  1734.         {

  1735.         case NATIVE_PLUGIN_OPCODE_NULL:

  1736.             if (static_cast<uint32_t>(index) == 0xDEADF00D && static_cast<uintptr_t>(value) == 0xC0C0B00B)

  1737.             {

  1738.                 handlePtr->fWaitForReadyMsg = true;

  1739.                 return handlePtr->fUiServer.getRemoteWinId();

  1740.             }

  1741.             return 0;

  1742.         case NATIVE_PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1743.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1744.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1745.             return 0;

  1746.         case NATIVE_PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1747.             CARLA_SAFE_ASSERT_RETURN(opt > 0.0, 0);

  1748.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1749.             return 0;

  1750.         case NATIVE_PLUGIN_OPCODE_OFFLINE_CHANGED:

  1751.             handlePtr->offlineModeChanged(value != 0);

  1752.             return 0;

  1753.         case NATIVE_PLUGIN_OPCODE_UI_NAME_CHANGED:

  1754.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1755.             return 0;

  1756.         }

  1757. 

  1758.         return 0;

  1759. 

  1760.         // unused

  1761.         (void)index;

  1762.         (void)ptr;

  1763.     }

  1764. 

  1765.     // -------------------------------------------------------------------

  1766. 

  1767.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)

  1768.     {

  1769.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);

  1770.     }

  1771. 

  1772.     // -------------------------------------------------------------------

  1773. 

  1774.     #undef handlePtr

  1775. 

  1776. private:

  1777.     const NativeHostDescriptor* const pHost;

  1778. 

  1779.     bool fIsActive, fIsRunning;

  1780.     CarlaEngineNativeUI fUiServer;

  1781. 

  1782.     bool fOptionsForced;

  1783.     bool fWaitForReadyMsg;

  1784.     char fTmpBuf[STR_MAX+1];

  1785. 

  1786.     CarlaPlugin* _getFirstPlugin() const noexcept

  1787.     {

  1788.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1789.             return nullptr;

  1790. 

  1791.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1792. 

  1793.         if (plugin == nullptr || ! plugin->isEnabled())

  1794.             return nullptr;

  1795. 

  1796.         return pData->plugins[0].plugin;

  1797.     }

  1798. 

  1799.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1800. };

  1801. 

  1802. // -----------------------------------------------------------------------

  1803. 

  1804. static const NativePluginDescriptor carlaRackDesc = {

  1805.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1806.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1807.                                                   |NATIVE_PLUGIN_HAS_UI

  1808.                                                   //|NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1809.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  1810.                                                   |NATIVE_PLUGIN_USES_STATE

  1811.                                                   |NATIVE_PLUGIN_USES_TIME),

  1812.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1813.     /* audioIns  */ 2,

  1814.     /* audioOuts */ 2,

  1815.     /* midiIns   */ 1,

  1816.     /* midiOuts  */ 1,

  1817.     /* paramIns  */ 0,

  1818.     /* paramOuts */ 0,

  1819.     /* name      */ "Carla-Rack",

  1820.     /* label     */ "carlarack",

  1821.     /* maker     */ "falkTX",

  1822.     /* copyright */ "GNU GPL v2+",

  1823.     CarlaEngineNative::_instantiateRack,

  1824.     CarlaEngineNative::_cleanup,

  1825.     CarlaEngineNative::_get_parameter_count,

  1826.     CarlaEngineNative::_get_parameter_info,

  1827.     CarlaEngineNative::_get_parameter_value,

  1828.     CarlaEngineNative::_get_midi_program_count,

  1829.     CarlaEngineNative::_get_midi_program_info,

  1830.     CarlaEngineNative::_set_parameter_value,

  1831.     CarlaEngineNative::_set_midi_program,

  1832.     /* _set_custom_data        */ nullptr,

  1833.     CarlaEngineNative::_ui_show,

  1834.     CarlaEngineNative::_ui_idle,

  1835.     /* _ui_set_parameter_value */ nullptr,

  1836.     /* _ui_set_midi_program    */ nullptr,

  1837.     /* _ui_set_custom_data     */ nullptr,

  1838.     CarlaEngineNative::_activate,

  1839.     CarlaEngineNative::_deactivate,

  1840.     CarlaEngineNative::_process,

  1841.     CarlaEngineNative::_get_state,

  1842.     CarlaEngineNative::_set_state,

  1843.     CarlaEngineNative::_dispatcher

  1844. };

  1845. 

  1846. CARLA_BACKEND_END_NAMESPACE

  1847. 

  1848. // -----------------------------------------------------------------------

  1849. 

  1850. CARLA_EXPORT

  1851. void carla_register_native_plugin_carla();

  1852. 

  1853. void carla_register_native_plugin_carla()

  1854. {

  1855.     CARLA_BACKEND_USE_NAMESPACE;

  1856.     carla_register_native_plugin(&carlaRackDesc);

  1857. }

  1858. 

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

  1860. 

  1861. CARLA_EXPORT

  1862. const NativePluginDescriptor* carla_get_native_rack_plugin();

  1863. const NativePluginDescriptor* carla_get_native_rack_plugin()

  1864. {

  1865.     CARLA_BACKEND_USE_NAMESPACE;

  1866.     return &carlaRackDesc;

  1867. }

  1868. 

  1869. // -----------------------------------------------------------------------

  1870. // Extra stuff for linking purposes

  1871. 

  1872. #ifdef CARLA_PLUGIN_EXPORT

  1873. 

  1874. CARLA_BACKEND_START_NAMESPACE

  1875. 

  1876. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  1877. 

  1878. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi)           { return nullptr; }

  1879. uint               CarlaEngine::getRtAudioApiCount()                 { return 0;       }

  1880. const char*        CarlaEngine::getRtAudioApiName(const uint)        { return nullptr; }

  1881. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const uint) { return nullptr; }

  1882. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const uint, const char* const) { return nullptr; }

  1883. 

  1884. CARLA_BACKEND_END_NAMESPACE

  1885. 

  1886. #include "CarlaHostCommon.cpp"

  1887. #include "CarlaPluginUI.cpp"

  1888. #include "CarlaDssiUtils.cpp"

  1889. #include "CarlaPatchbayUtils.cpp"

  1890. #include "CarlaPipeUtils.cpp"

  1891. #include "CarlaStateUtils.cpp"

  1892. 

  1893. #endif

  1894. 

  1895. // -----------------------------------------------------------------------