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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 "AppConfig.h"

  38. #include "juce_core/juce_core.h"

  39. 

  40. using juce::File;

  41. using juce::MemoryOutputStream;

  42. using juce::String;

  43. using juce::XmlDocument;

  44. using juce::XmlElement;

  45. 

  46. CARLA_BACKEND_START_NAMESPACE

  47. 

  48. // -----------------------------------------------------------------------

  49. 

  50. class CarlaEngineNativeUI : public CarlaExternalUI

  51. {

  52. public:

  53.     CarlaEngineNativeUI(CarlaEngine* const engine)

  54.         : fEngine(engine),

  55.           fRemoteWinId(0)

  56.     {

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

  58.     }

  59. 

  60.     ~CarlaEngineNativeUI() noexcept override

  61.     {

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

  63.     }

  64. 

  65.     bool isReady() const noexcept

  66.     {

  67.         return fRemoteWinId != 0;

  68.     }

  69. 

  70.     intptr_t getRemoteWinId() const noexcept

  71.     {

  72.         return fRemoteWinId;

  73.     }

  74. 

  75. protected:

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

  77.     {

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

  79.             return true;

  80. 

  81.         bool ok = true;

  82. 

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

  84.         {

  85.             uint32_t option;

  86.             int32_t value;

  87.             const char* valueStr = nullptr;

  88. 

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

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

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

  92. 

  93.             try {

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

  95.             } CARLA_SAFE_EXCEPTION("setOption");

  96. 

  97.             if (valueStr != nullptr)

  98.                 delete[] valueStr;

  99.         }

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

  101.         {

  102.             const char* filename;

  103. 

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

  105. 

  106.             try {

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

  108.             } CARLA_SAFE_EXCEPTION("loadFile");

  109. 

  110.             delete[] filename;

  111.         }

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

  113.         {

  114.             const char* filename;

  115. 

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

  117. 

  118.             try {

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

  120.             } CARLA_SAFE_EXCEPTION("loadProject");

  121. 

  122.             delete[] filename;

  123.         }

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

  125.         {

  126.             const char* filename;

  127. 

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

  129. 

  130.             try {

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

  132.             } CARLA_SAFE_EXCEPTION("saveProject");

  133. 

  134.             delete[] filename;

  135.         }

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

  137.         {

  138.             uint32_t groupA, portA, groupB, portB;

  139. 

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

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

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

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

  144. 

  145.             try {

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

  147.             } CARLA_SAFE_EXCEPTION("patchbayConnect");

  148.         }

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

  150.         {

  151.             uint32_t connectionId;

  152. 

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

  154. 

  155.             try {

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

  157.             } CARLA_SAFE_EXCEPTION("patchbayDisconnect");

  158.         }

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

  160.         {

  161.             try {

  162.                 ok = fEngine->patchbayRefresh();

  163.             } CARLA_SAFE_EXCEPTION("patchbayRefresh");

  164.         }

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

  166.         {

  167.             fEngine->transportPlay();

  168.         }

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

  170.         {

  171.             fEngine->transportPause();

  172.         }

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

  174.         {

  175.             double bpm;

  176. 

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

  178. 

  179.             fEngine->transportBPM(bpm);

  180.         }

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

  182.         {

  183.             uint64_t frame;

  184. 

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

  186. 

  187.             fEngine->transportRelocate(frame);

  188.         }

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

  190.         {

  191.             uint32_t btype, ptype;

  192.             const char* filename = nullptr;

  193.             const char* name;

  194.             const char* label;

  195.             int64_t uniqueId;

  196.             uint options;

  197. 

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

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

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

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

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

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

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

  205. 

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

  207.             {

  208.                 delete[] filename;

  209.                 filename = nullptr;

  210.             }

  211. 

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

  213.             {

  214.                 delete[] name;

  215.                 name = nullptr;

  216.             }

  217. 

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

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

  220. 

  221.             if (filename != nullptr)

  222.                 delete[] filename;

  223.             if (name != nullptr)

  224.                 delete[] name;

  225.             delete[] label;

  226.         }

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

  228.         {

  229.             uint32_t pluginId;

  230. 

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

  232. 

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

  234.         }

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

  236.         {

  237.             ok = fEngine->removeAllPlugins();

  238.         }

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

  240.         {

  241.             uint32_t pluginId;

  242.             const char* newName;

  243. 

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

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

  246. 

  247.             // TODO

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

  249. 

  250.             delete[] newName;

  251.         }

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

  253.         {

  254.             uint32_t pluginId;

  255. 

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

  257. 

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

  259.         }

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

  261.         {

  262.             uint32_t pluginId;

  263. 

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

  265. 

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

  267.         }

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

  269.         {

  270.             uint32_t pluginIdA, pluginIdB;

  271. 

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

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

  274. 

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

  276.         }

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

  278.         {

  279.             uint32_t pluginId;

  280.             const char* filename;

  281. 

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

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

  284. 

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

  286.                 plugin->loadStateFromFile(filename);

  287. 

  288.             delete[] filename;

  289.         }

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

  291.         {

  292.             uint32_t pluginId;

  293.             const char* filename;

  294. 

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

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

  297. 

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

  299.                 plugin->saveStateToFile(filename);

  300. 

  301.             delete[] filename;

  302.         }

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

  304.         {

  305.             uint32_t pluginId, option;

  306.             bool yesNo;

  307. 

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

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

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

  311. 

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

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

  314.         }

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

  316.         {

  317.             uint32_t pluginId;

  318.             bool onOff;

  319. 

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

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

  322. 

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

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

  325.         }

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

  327.         {

  328.             uint32_t pluginId;

  329.             float value;

  330. 

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

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

  333. 

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

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

  336.         }

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

  338.         {

  339.             uint32_t pluginId;

  340.             float value;

  341. 

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

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

  344. 

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

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

  347.         }

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

  349.         {

  350.             uint32_t pluginId;

  351.             float value;

  352. 

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

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

  355. 

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

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

  358.         }

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

  360.         {

  361.             uint32_t pluginId;

  362.             float value;

  363. 

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

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

  366. 

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

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

  369.         }

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

  371.         {

  372.             uint32_t pluginId;

  373.             float value;

  374. 

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

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

  377. 

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

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

  380.         }

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

  382.         {

  383.             uint32_t pluginId;

  384.             int32_t channel;

  385. 

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

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

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

  389. 

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

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

  392.         }

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

  394.         {

  395.             uint32_t pluginId, parameterId;

  396.             float value;

  397. 

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

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

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

  401. 

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

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

  404.         }

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

  406.         {

  407.             uint32_t pluginId, parameterId, channel;

  408. 

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

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

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

  412.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  413. 

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

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

  416.         }

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

  418.         {

  419.             uint32_t pluginId, parameterId;

  420.             int32_t cc;

  421. 

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

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

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

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

  426. 

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

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

  429.         }

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

  431.         {

  432.             uint32_t pluginId;

  433.             int32_t index;

  434. 

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

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

  437. 

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

  439.             {

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

  441.                 _updateParamValues(plugin, pluginId);

  442.             }

  443.         }

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

  445.         {

  446.             uint32_t pluginId;

  447.             int32_t index;

  448. 

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

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

  451. 

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

  453.             {

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

  455.                 _updateParamValues(plugin, pluginId);

  456.             }

  457.         }

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

  459.         {

  460.             uint32_t pluginId;

  461.             const char* type;

  462.             const char* key;

  463.             const char* value;

  464. 

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

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

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

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

  469. 

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

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

  472. 

  473.             delete[] type;

  474.             delete[] key;

  475.             delete[] value;

  476.         }

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

  478.         {

  479.             uint32_t pluginId;

  480.             const char* cdata;

  481. 

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

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

  484. 

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

  486.             {

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

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

  489.             }

  490. 

  491.             delete[] cdata;

  492.         }

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

  494.         {

  495.             uint32_t pluginId;

  496. 

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

  498. 

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

  500.                 plugin->prepareForSave();

  501.         }

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

  503.         {

  504.             uint32_t pluginId;

  505. 

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

  507. 

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

  509.                 plugin->resetParameters();

  510.         }

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

  512.         {

  513.             uint32_t pluginId;

  514. 

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

  516. 

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

  518.                 plugin->randomizeParameters();

  519.         }

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

  521.         {

  522.             uint32_t pluginId, channel, note, velocity;

  523. 

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

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

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

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

  528.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  529.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_VALUE, true);

  530.             CARLA_SAFE_ASSERT_RETURN(velocity < MAX_MIDI_VALUE, true);

  531. 

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

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

  534.         }

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

  536.         {

  537.             uint32_t pluginId;

  538.             bool yesNo;

  539. 

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

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

  542. 

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

  544.                 plugin->showCustomUI(yesNo);

  545.         }

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

  547.         {

  548.             uint64_t winId;

  549. 

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

  551. 

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

  553.         }

  554.         else

  555.         {

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

  557.             return false;

  558.         }

  559. 

  560.         if (! ok)

  561.         {

  562.             const CarlaMutexLocker cml(getPipeLock());

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

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

  565.             flushMessages();

  566.         }

  567. 

  568.         return true;

  569.     }

  570. 

  571. private:

  572.     CarlaEngine* const fEngine;

  573.     intptr_t           fRemoteWinId;

  574. 

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

  576.     {

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

  578.             fEngine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,

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

  580.     }

  581. 

  582.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  583. };

  584. 

  585. // -----------------------------------------------------------------------

  586. 

  587. class CarlaEngineNative : public CarlaEngine

  588. {

  589. public:

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

  591.         : CarlaEngine(),

  592.           pHost(host),

  593.           fIsActive(false),

  594.           fIsRunning(false),

  595.           fUiServer(this),

  596.           fOptionsForced(false),

  597.           fWaitForReadyMsg(false)

  598.     {

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

  600. 

  601.         carla_zeroChars(fTmpBuf, STR_MAX+1);

  602. 

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

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

  605.         pData->initTime(nullptr);

  606. 

  607.         if (outChan == 0)

  608.             outChan = inChan;

  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); // FIXME?

  619. 

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

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

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

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

  624. 

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

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

  627. 

  628.         setCallback(_ui_server_callback, this);

  629.     }

  630. 

  631.     ~CarlaEngineNative() override

  632.     {

  633.         CARLA_SAFE_ASSERT(! fIsActive);

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

  635. 

  636.         pData->aboutToClose = true;

  637.         fIsRunning = false;

  638. 

  639.         removeAllPlugins();

  640.         //runPendingRtEvents();

  641.         close();

  642. 

  643.         pData->graph.destroy();

  644. 

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

  646.     }

  647. 

  648. protected:

  649.     // -------------------------------------

  650.     // CarlaEngine virtual calls

  651. 

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

  653.     {

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

  655. 

  656.         fIsRunning = true;

  657. 

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

  659.         {

  660.             close();

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

  662.             return false;

  663.         }

  664. 

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

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

  667. 

  668.         return true;

  669.     }

  670. 

  671.     bool close() override

  672.     {

  673.         fIsRunning = false;

  674.         CarlaEngine::close();

  675.         return true;

  676.     }

  677. 

  678.     bool isRunning() const noexcept override

  679.     {

  680.         return fIsRunning;

  681.     }

  682. 

  683.     bool isOffline() const noexcept override

  684.     {

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

  686.     }

  687. 

  688.     bool usesConstantBufferSize() const noexcept override

  689.     {

  690.         // TODO

  691.         return true;

  692.     }

  693. 

  694.     EngineType getType() const noexcept override

  695.     {

  696.         return kEngineTypePlugin;

  697.     }

  698. 

  699.     const char* getCurrentDriverName() const noexcept override

  700.     {

  701.         return "Plugin";

  702.     }

  703. 

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

  705.     {

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

  707. 

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

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

  710.     }

  711. 

  712.     // -------------------------------------------------------------------

  713. 

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

  715.     {

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

  717.         {

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

  719.             return retName;

  720.         }

  721. 

  722.         return nullptr;

  723.     }

  724. 

  725.     // -------------------------------------------------------------------

  726. 

  727.     void bufferSizeChanged(const uint32_t newBufferSize)

  728.     {

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

  730.             return;

  731. 

  732.         {

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

  734. 

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

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

  737.             fUiServer.writeMessage(fTmpBuf);

  738.             fUiServer.flushMessages();

  739.         }

  740. 

  741.         pData->bufferSize = newBufferSize;

  742.         CarlaEngine::bufferSizeChanged(newBufferSize);

  743.     }

  744. 

  745.     void sampleRateChanged(const double newSampleRate)

  746.     {

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

  748.             return;

  749. 

  750.         {

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

  752.             const ScopedLocale csl;

  753. 

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

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

  756.             fUiServer.writeMessage(fTmpBuf);

  757.             fUiServer.flushMessages();

  758.         }

  759. 

  760.         pData->sampleRate = newSampleRate;

  761.         CarlaEngine::sampleRateChanged(newSampleRate);

  762.     }

  763. 

  764.     // -------------------------------------------------------------------

  765. 

  766.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  767.     {

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

  769. 

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

  771. 

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

  773.         fUiServer.writeMessage(fTmpBuf);

  774. 

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

  776.         fUiServer.writeMessage(fTmpBuf);

  777. 

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

  779.         {

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

  781.             fUiServer.writeAndFixMessage(fTmpBuf);

  782.         }

  783.         else

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

  785. 

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

  787.         {

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

  789.             fUiServer.writeAndFixMessage(fTmpBuf);

  790.         }

  791.         else

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

  793. 

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

  795.         {

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

  797.             fUiServer.writeAndFixMessage(fTmpBuf);

  798.         }

  799.         else

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

  801. 

  802.         plugin->getRealName(fTmpBuf);

  803.         fUiServer.writeAndFixMessage(fTmpBuf);

  804. 

  805.         plugin->getLabel(fTmpBuf);

  806.         fUiServer.writeAndFixMessage(fTmpBuf);

  807. 

  808.         plugin->getMaker(fTmpBuf);

  809.         fUiServer.writeAndFixMessage(fTmpBuf);

  810. 

  811.         plugin->getCopyright(fTmpBuf);

  812.         fUiServer.writeAndFixMessage(fTmpBuf);

  813. 

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

  815.         fUiServer.writeMessage(fTmpBuf);

  816. 

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

  818.         fUiServer.writeMessage(fTmpBuf);

  819. 

  820.         fUiServer.flushMessages();

  821.     }

  822. 

  823.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  824.     {

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

  826.         const ScopedLocale csl;

  827. 

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

  829. 

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

  831.         {

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

  833.             fUiServer.writeMessage(fTmpBuf);

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

  835.             fUiServer.writeMessage(fTmpBuf);

  836.             fUiServer.flushMessages();

  837.         }

  838. 

  839.         uint32_t ins, outs, count;

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

  841.         count = plugin->getParameterCount();

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

  843.         fUiServer.writeMessage(fTmpBuf);

  844. 

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

  846.         {

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

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

  849. 

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

  851.             fUiServer.writeMessage(fTmpBuf);

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

  853.             fUiServer.writeMessage(fTmpBuf);

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

  855.             fUiServer.writeAndFixMessage(fTmpBuf);

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

  857.             fUiServer.writeAndFixMessage(fTmpBuf);

  858. 

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

  860.             fUiServer.writeMessage(fTmpBuf);

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

  862.             fUiServer.writeMessage(fTmpBuf);

  863. 

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

  865.             fUiServer.writeMessage(fTmpBuf);

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

  867.             fUiServer.writeMessage(fTmpBuf);

  868.         }

  869. 

  870.         fUiServer.flushMessages();

  871.     }

  872. 

  873.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  874.     {

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

  876. 

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

  878. 

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

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

  881.         fUiServer.writeMessage(fTmpBuf);

  882. 

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

  884.         {

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

  886.             fUiServer.writeMessage(fTmpBuf);

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

  888.             fUiServer.writeAndFixMessage(fTmpBuf);

  889.         }

  890. 

  891.         fUiServer.flushMessages();

  892. 

  893.         count = plugin->getMidiProgramCount();

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

  895.         fUiServer.writeMessage(fTmpBuf);

  896. 

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

  898.         {

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

  900.             fUiServer.writeMessage(fTmpBuf);

  901. 

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

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

  904.             fUiServer.writeMessage(fTmpBuf);

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

  906.             fUiServer.writeAndFixMessage(fTmpBuf);

  907.         }

  908. 

  909.         fUiServer.flushMessages();

  910.     }

  911. 

  912.     void uiServerSendPluginProperties(CarlaPlugin* const plugin)

  913.     {

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

  915. 

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

  917. 

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

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

  920.         fUiServer.writeMessage(fTmpBuf);

  921. 

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

  923.         {

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

  925.             CARLA_SAFE_ASSERT_CONTINUE(customData.isValid());

  926. 

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

  928.                 continue;

  929. 

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

  931.             fUiServer.writeMessage(fTmpBuf);

  932. 

  933.             fUiServer.writeAndFixMessage(customData.type);

  934.             fUiServer.writeAndFixMessage(customData.key);

  935.             fUiServer.writeAndFixMessage(customData.value);

  936.         }

  937. 

  938.         fUiServer.flushMessages();

  939.     }

  940. 

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

  942.     {

  943.         if (! fIsRunning)

  944.             return;

  945.         if (! fUiServer.isPipeRunning())

  946.             return;

  947. 

  948.         CarlaPlugin* plugin;

  949. 

  950.         switch (action)

  951.         {

  952.         case ENGINE_CALLBACK_UPDATE:

  953.             plugin = getPlugin(pluginId);

  954. 

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

  956.             {

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

  958.                 uiServerSendPluginProperties(plugin);

  959.             }

  960.             break;

  961. 

  962.         case ENGINE_CALLBACK_RELOAD_INFO:

  963.             plugin = getPlugin(pluginId);

  964. 

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

  966.             {

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

  968.                 uiServerSendPluginInfo(plugin);

  969.             }

  970.             break;

  971. 

  972.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  973.             plugin = getPlugin(pluginId);

  974. 

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

  976.             {

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

  978.                 uiServerSendPluginParameters(plugin);

  979.             }

  980.             break;

  981. 

  982.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  983.             plugin = getPlugin(pluginId);

  984. 

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

  986.             {

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

  988.                 uiServerSendPluginPrograms(plugin);

  989.             }

  990.             break;

  991. 

  992.         case ENGINE_CALLBACK_RELOAD_ALL:

  993.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  994.             plugin = getPlugin(pluginId);

  995. 

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

  997.             {

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

  999.                 uiServerSendPluginInfo(plugin);

  1000.                 uiServerSendPluginParameters(plugin);

  1001.                 uiServerSendPluginPrograms(plugin);

  1002.                 uiServerSendPluginProperties(plugin);

  1003.             }

  1004.             break;

  1005. 

  1006.         default:

  1007.             break;

  1008.         }

  1009. 

  1010.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1011.         const ScopedLocale csl;

  1012. 

  1013.         std::sprintf(fTmpBuf, "ENGINE_CALLBACK_%i\n", int(action));

  1014.         fUiServer.writeMessage(fTmpBuf);

  1015. 

  1016.         std::sprintf(fTmpBuf, "%u\n", pluginId);

  1017.         fUiServer.writeMessage(fTmpBuf);

  1018. 

  1019.         std::sprintf(fTmpBuf, "%i\n", value1);

  1020.         fUiServer.writeMessage(fTmpBuf);

  1021. 

  1022.         std::sprintf(fTmpBuf, "%i\n", value2);

  1023.         fUiServer.writeMessage(fTmpBuf);

  1024. 

  1025.         std::sprintf(fTmpBuf, "%f\n", value3);

  1026.         fUiServer.writeMessage(fTmpBuf);

  1027. 

  1028.         fUiServer.writeAndFixMessage(valueStr != nullptr ? valueStr : "");

  1029. 

  1030.         fUiServer.flushMessages();

  1031.     }

  1032. 

  1033.     void uiServerInfo()

  1034.     {

  1035.         CARLA_SAFE_ASSERT_RETURN(fIsRunning,);

  1036.         CARLA_SAFE_ASSERT_RETURN(fUiServer.isPipeRunning(),);

  1037. 

  1038.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1039. 

  1040. #ifdef HAVE_LIBLO

  1041.         fUiServer.writeAndFixMessage("osc-urls");

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

  1043.         fUiServer.writeAndFixMessage(pData->osc.getServerPathUDP());

  1044. #endif

  1045. 

  1046.         fUiServer.writeAndFixMessage("max-plugin-number");

  1047.         std::sprintf(fTmpBuf, "%i\n", pData->maxPluginNumber);

  1048.         fUiServer.writeMessage(fTmpBuf);

  1049. 

  1050.         fUiServer.writeAndFixMessage("buffer-size");

  1051.         std::sprintf(fTmpBuf, "%i\n", pData->bufferSize);

  1052.         fUiServer.writeMessage(fTmpBuf);

  1053. 

  1054.         const ScopedLocale csl;

  1055. 

  1056.         fUiServer.writeAndFixMessage("sample-rate");

  1057.         std::sprintf(fTmpBuf, "%f\n", pData->sampleRate);

  1058.         fUiServer.writeMessage(fTmpBuf);

  1059. 

  1060.         fUiServer.flushMessages();

  1061.     }

  1062. 

  1063.     void uiServerOptions()

  1064.     {

  1065.         CARLA_SAFE_ASSERT_RETURN(fIsRunning,);

  1066.         CARLA_SAFE_ASSERT_RETURN(fUiServer.isPipeRunning(),);

  1067. 

  1068.         const EngineOptions& options(pData->options);

  1069.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1070. 

  1071.         const char* const optionsForcedStr(fOptionsForced ? "true\n" : "false\n");

  1072.         const std::size_t optionsForcedStrSize(fOptionsForced ? 5 : 6);

  1073. 

  1074.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PROCESS_MODE);

  1075.         fUiServer.writeMessage(fTmpBuf);

  1076.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1077.         std::sprintf(fTmpBuf, "%i\n", options.processMode);

  1078.         fUiServer.writeMessage(fTmpBuf);

  1079.         fUiServer.flushMessages();

  1080. 

  1081.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_TRANSPORT_MODE);

  1082.         fUiServer.writeMessage(fTmpBuf);

  1083.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1084.         std::sprintf(fTmpBuf, "%i\n", options.transportMode);

  1085.         fUiServer.writeMessage(fTmpBuf);

  1086.         fUiServer.flushMessages();

  1087. 

  1088.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_FORCE_STEREO);

  1089.         fUiServer.writeMessage(fTmpBuf);

  1090.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1091.         fUiServer.writeMessage(options.forceStereo ? "true\n" : "false\n");

  1092.         fUiServer.flushMessages();

  1093. 

  1094.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PREFER_PLUGIN_BRIDGES);

  1095.         fUiServer.writeMessage(fTmpBuf);

  1096.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1097.         fUiServer.writeMessage(options.preferPluginBridges ? "true\n" : "false\n");

  1098.         fUiServer.flushMessages();

  1099. 

  1100.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PREFER_UI_BRIDGES);

  1101.         fUiServer.writeMessage(fTmpBuf);

  1102.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1103.         fUiServer.writeMessage(options.preferUiBridges ? "true\n" : "false\n");

  1104.         fUiServer.flushMessages();

  1105. 

  1106.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_UIS_ALWAYS_ON_TOP);

  1107.         fUiServer.writeMessage(fTmpBuf);

  1108.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1109.         fUiServer.writeMessage(options.uisAlwaysOnTop ? "true\n" : "false\n");

  1110.         fUiServer.flushMessages();

  1111. 

  1112.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_MAX_PARAMETERS);

  1113.         fUiServer.writeMessage(fTmpBuf);

  1114.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1115.         std::sprintf(fTmpBuf, "%i\n", options.maxParameters);

  1116.         fUiServer.writeMessage(fTmpBuf);

  1117.         fUiServer.flushMessages();

  1118. 

  1119.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_UI_BRIDGES_TIMEOUT);

  1120.         fUiServer.writeMessage(fTmpBuf);

  1121.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1122.         std::sprintf(fTmpBuf, "%i\n", options.uiBridgesTimeout);

  1123.         fUiServer.writeMessage(fTmpBuf);

  1124.         fUiServer.flushMessages();

  1125. 

  1126.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PATH_BINARIES);

  1127.         fUiServer.writeMessage(fTmpBuf);

  1128.         fUiServer.writeMessage("true\n", 5);

  1129.         std::sprintf(fTmpBuf, "%s\n", options.binaryDir);

  1130.         fUiServer.writeMessage(fTmpBuf);

  1131.         fUiServer.flushMessages();

  1132. 

  1133.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PATH_RESOURCES);

  1134.         fUiServer.writeMessage(fTmpBuf);

  1135.         fUiServer.writeMessage("true\n", 5);

  1136.         std::sprintf(fTmpBuf, "%s\n", options.resourceDir);

  1137.         fUiServer.writeMessage(fTmpBuf);

  1138.         fUiServer.flushMessages();

  1139.     }

  1140. 

  1141.     // -------------------------------------------------------------------

  1142.     // Plugin parameter calls

  1143. 

  1144.     uint32_t getParameterCount() const

  1145.     {

  1146.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1147.             return plugin->getParameterCount();

  1148. 

  1149.         return 0;

  1150.     }

  1151. 

  1152.     const NativeParameter* getParameterInfo(const uint32_t index) const

  1153.     {

  1154.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1155.         {

  1156.             if (index < plugin->getParameterCount())

  1157.             {

  1158.                 static NativeParameter param;

  1159.                 static char strBufName[STR_MAX+1];

  1160.                 static char strBufUnit[STR_MAX+1];

  1161. 

  1162.                 const ParameterData& paramData(plugin->getParameterData(index));

  1163.                 const ParameterRanges& paramRanges(plugin->getParameterRanges(index));

  1164. 

  1165.                 plugin->getParameterName(index, strBufName);

  1166.                 plugin->getParameterUnit(index, strBufUnit);

  1167. 

  1168.                 uint hints = 0x0;

  1169. 

  1170.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  1171.                     hints |= NATIVE_PARAMETER_IS_BOOLEAN;

  1172.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  1173.                     hints |= NATIVE_PARAMETER_IS_INTEGER;

  1174.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  1175.                     hints |= NATIVE_PARAMETER_IS_LOGARITHMIC;

  1176.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  1177.                     hints |= NATIVE_PARAMETER_IS_AUTOMABLE;

  1178.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  1179.                     hints |= NATIVE_PARAMETER_USES_SAMPLE_RATE;

  1180.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  1181.                     hints |= NATIVE_PARAMETER_USES_SCALEPOINTS;

  1182. 

  1183.                 if (paramData.type == PARAMETER_INPUT || paramData.type == PARAMETER_OUTPUT)

  1184.                 {

  1185.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  1186.                         hints |= NATIVE_PARAMETER_IS_ENABLED;

  1187.                     if (paramData.type == PARAMETER_OUTPUT)

  1188.                         hints |= NATIVE_PARAMETER_IS_OUTPUT;

  1189.                 }

  1190. 

  1191.                 param.hints = static_cast<NativeParameterHints>(hints);

  1192.                 param.name  = strBufName;

  1193.                 param.unit  = strBufUnit;

  1194.                 param.ranges.def = paramRanges.def;

  1195.                 param.ranges.min = paramRanges.min;

  1196.                 param.ranges.max = paramRanges.max;

  1197.                 param.ranges.step = paramRanges.step;

  1198.                 param.ranges.stepSmall = paramRanges.stepSmall;

  1199.                 param.ranges.stepLarge = paramRanges.stepLarge;

  1200.                 param.scalePointCount = 0; // TODO

  1201.                 param.scalePoints = nullptr;

  1202. 

  1203.                 return &param;

  1204.             }

  1205.         }

  1206. 

  1207.         return nullptr;

  1208.     }

  1209. 

  1210.     float getParameterValue(const uint32_t index) const

  1211.     {

  1212.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1213.         {

  1214.             if (index < plugin->getParameterCount())

  1215.                 return plugin->getParameterValue(index);

  1216.         }

  1217. 

  1218.         return 0.0f;

  1219.     }

  1220. 

  1221.     // -------------------------------------------------------------------

  1222.     // Plugin midi-program calls

  1223. 

  1224.     uint32_t getMidiProgramCount() const

  1225.     {

  1226.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1227.             return plugin->getMidiProgramCount();

  1228. 

  1229.         return 0;

  1230.     }

  1231. 

  1232.     const NativeMidiProgram* getMidiProgramInfo(const uint32_t index) const

  1233.     {

  1234.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1235.         {

  1236.             if (index < plugin->getMidiProgramCount())

  1237.             {

  1238.                 static NativeMidiProgram midiProg;

  1239. 

  1240.                 {

  1241.                     const MidiProgramData& midiProgData(plugin->getMidiProgramData(index));

  1242. 

  1243.                     midiProg.bank    = midiProgData.bank;

  1244.                     midiProg.program = midiProgData.program;

  1245.                     midiProg.name    = midiProgData.name;

  1246.                 }

  1247. 

  1248.                 return &midiProg;

  1249.             }

  1250.         }

  1251. 

  1252.         return nullptr;

  1253.     }

  1254. 

  1255.     // -------------------------------------------------------------------

  1256.     // Plugin state calls

  1257. 

  1258.     void setParameterValue(const uint32_t index, const float value)

  1259.     {

  1260.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1261.         {

  1262.             if (index < plugin->getParameterCount())

  1263.                 plugin->setParameterValue(index, value, false, false, false);

  1264.         }

  1265.     }

  1266. 

  1267.     void setMidiProgram(const uint8_t, const uint32_t bank, const uint32_t program)

  1268.     {

  1269.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1270.             plugin->setMidiProgramById(bank, program, false, false, false);

  1271.     }

  1272. 

  1273.     // -------------------------------------------------------------------

  1274.     // Plugin process calls

  1275. 

  1276.     void activate()

  1277.     {

  1278. #if 0

  1279.         for (uint i=0; i < pData->curPluginCount; ++i)

  1280.         {

  1281.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1282. 

  1283.             if (plugin == nullptr || ! plugin->isEnabled())

  1284.                 continue;

  1285. 

  1286.             plugin->setActive(true, true, false);

  1287.         }

  1288. #endif

  1289.         fIsActive = true;

  1290.     }

  1291. 

  1292.     void deactivate()

  1293.     {

  1294.         fIsActive = false;

  1295. #if 0

  1296.         for (uint i=0; i < pData->curPluginCount; ++i)

  1297.         {

  1298.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1299. 

  1300.             if (plugin == nullptr || ! plugin->isEnabled())

  1301.                 continue;

  1302. 

  1303.             plugin->setActive(false, true, false);

  1304.         }

  1305. #endif

  1306. 

  1307.         // just in case

  1308.         //runPendingRtEvents();

  1309.     }

  1310. 

  1311.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames,

  1312.                  const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1313.     {

  1314.         const PendingRtEventsRunner prt(this, frames);

  1315. 

  1316.         // ---------------------------------------------------------------

  1317.         // Time Info

  1318. 

  1319.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1320. 

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

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

  1323.         pData->timeInfo.usecs   = timeInfo->usecs;

  1324.         pData->timeInfo.valid   = 0x0;

  1325. 

  1326.         if (timeInfo->bbt.valid)

  1327.         {

  1328.             pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;

  1329. 

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

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

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

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

  1334. 

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

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

  1337. 

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

  1339.             pData->timeInfo.bbt.beatsPerMinute = timeInfo->bbt.beatsPerMinute;

  1340.         }

  1341. 

  1342.         // ---------------------------------------------------------------

  1343.         // Do nothing if no plugins and rack mode

  1344. 

  1345.         if (pData->curPluginCount == 0)

  1346.         {

  1347.             if (outBuffer[0] != inBuffer[0])

  1348.                 carla_copyFloats(outBuffer[0], inBuffer[0], frames);

  1349. 

  1350.             if (outBuffer[1] != inBuffer[1])

  1351.                 carla_copyFloats(outBuffer[1], inBuffer[1], frames);

  1352. 

  1353.             for (uint32_t i=0; i < midiEventCount; ++i)

  1354.             {

  1355.                 if (! pHost->write_midi_event(pHost->handle, &midiEvents[i]))

  1356.                     break;

  1357.             }

  1358.             return;

  1359.         }

  1360. 

  1361.         // ---------------------------------------------------------------

  1362.         // initialize events

  1363. 

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

  1365.         carla_zeroStructs(pData->events.out, kMaxEngineEventInternalCount);

  1366. 

  1367.         // ---------------------------------------------------------------

  1368.         // events input (before processing)

  1369. 

  1370.         {

  1371.             uint32_t engineEventIndex = 0;

  1372. 

  1373.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kMaxEngineEventInternalCount; ++i)

  1374.             {

  1375.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1376.                 EngineEvent&           engineEvent(pData->events.in[engineEventIndex++]);

  1377. 

  1378.                 engineEvent.time = midiEvent.time;

  1379.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data, 0);

  1380. 

  1381.                 if (engineEventIndex >= kMaxEngineEventInternalCount)

  1382.                     break;

  1383.             }

  1384.         }

  1385. 

  1386.         {

  1387.             // -----------------------------------------------------------

  1388.             // create audio buffers

  1389. 

  1390.             const float* inBuf[2]  = {  inBuffer[0],  inBuffer[1] };

  1391.             /* */ float* outBuf[2] = { outBuffer[0], outBuffer[1] };

  1392. 

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

  1394.             // process

  1395. 

  1396.             pData->graph.processRack(pData, inBuf, outBuf, frames);

  1397.         }

  1398. 

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

  1400.         // events output (after processing)

  1401. 

  1402.         carla_zeroStructs(pData->events.in, kMaxEngineEventInternalCount);

  1403. 

  1404.         {

  1405.             NativeMidiEvent midiEvent;

  1406. 

  1407.             for (uint32_t i=0; i < kMaxEngineEventInternalCount; ++i)

  1408.             {

  1409.                 const EngineEvent& engineEvent(pData->events.out[i]);

  1410. 

  1411.                 if (engineEvent.type == kEngineEventTypeNull)

  1412.                     break;

  1413. 

  1414.                 midiEvent.time = engineEvent.time;

  1415. 

  1416.                 if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)

  1417.                 {

  1418.                     midiEvent.port = 0;

  1419.                     engineEvent.ctrl.convertToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);

  1420.                 }

  1421.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1422.                 {

  1423.                     if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)

  1424.                         continue;

  1425. 

  1426.                     midiEvent.port = engineEvent.midi.port;

  1427.                     midiEvent.size = engineEvent.midi.size;

  1428. 

  1429.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);

  1430. 

  1431.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1432.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1433.                 }

  1434.                 else

  1435.                 {

  1436.                     carla_stderr("Unknown event type...");

  1437.                     continue;

  1438.                 }

  1439. 

  1440.                 pHost->write_midi_event(pHost->handle, &midiEvent);

  1441.             }

  1442.         }

  1443.     }

  1444. 

  1445.     // -------------------------------------------------------------------

  1446.     // Plugin UI calls

  1447. 

  1448.     void uiShow(const bool show)

  1449.     {

  1450.         if (show)

  1451.         {

  1452.             if (fUiServer.isPipeRunning())

  1453.             {

  1454.                 fUiServer.writeFocusMessage();

  1455.                 return;

  1456.             }

  1457. 

  1458.             CarlaString path(pHost->resourceDir);

  1459. 

  1460.             path += CARLA_OS_SEP_STR "carla-plugin";

  1461. #ifdef CARLA_OS_WIN

  1462.             path += ".exe";

  1463. #endif

  1464.             carla_stdout("Trying to start carla-plugin using \"%s\"", path.buffer());

  1465. 

  1466.             fUiServer.setData(path, pData->sampleRate, pHost->uiName);

  1467. 

  1468.             if (! fUiServer.startPipeServer(false))

  1469.             {

  1470.                 pHost->dispatcher(pHost->handle, NATIVE_HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1471.                 return;

  1472.             }

  1473. 

  1474.             uiServerInfo();

  1475.             uiServerOptions();

  1476.             uiServerCallback(ENGINE_CALLBACK_ENGINE_STARTED, 0, pData->options.processMode, pData->options.transportMode, 0.0f, "Plugin");

  1477. 

  1478.             fUiServer.writeShowMessage();

  1479. 

  1480.             for (uint i=0; i < pData->curPluginCount; ++i)

  1481.             {

  1482.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1483. 

  1484.                 if (plugin != nullptr && plugin->isEnabled())

  1485.                 {

  1486.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());

  1487.                 }

  1488.             }

  1489. 

  1490.             if (fWaitForReadyMsg)

  1491.             {

  1492.                 carla_stdout("Using Carla plugin embedded, waiting for it to be ready...");

  1493. 

  1494.                 for (; fUiServer.isPipeRunning() && ! fUiServer.isReady();)

  1495.                 {

  1496.                     carla_msleep(25);

  1497.                     fUiServer.idlePipe();

  1498.                 }

  1499. 

  1500.                 carla_stdout("Done!");

  1501.             }

  1502.         }

  1503.         else

  1504.         {

  1505.             fUiServer.stopPipeServer(2000);

  1506. 

  1507.             // hide all custom uis

  1508.             for (uint i=0; i < pData->curPluginCount; ++i)

  1509.             {

  1510.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1511. 

  1512.                 if (plugin != nullptr && plugin->isEnabled())

  1513.                 {

  1514.                     if (plugin->getHints() & PLUGIN_HAS_CUSTOM_UI)

  1515.                     {

  1516.                         try {

  1517.                             plugin->showCustomUI(false);

  1518.                         } CARLA_SAFE_EXCEPTION_CONTINUE("Plugin showCustomUI (hide)");

  1519.                     }

  1520.                 }

  1521.             }

  1522.         }

  1523.     }

  1524. 

  1525.     void uiIdle()

  1526.     {

  1527.         for (uint i=0; i < pData->curPluginCount; ++i)

  1528.         {

  1529.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1530. 

  1531.             if (plugin != nullptr && plugin->isEnabled())

  1532.             {

  1533.                 const uint hints(plugin->getHints());

  1534. 

  1535.                 if ((hints & PLUGIN_HAS_CUSTOM_UI) != 0 && (hints & PLUGIN_NEEDS_UI_MAIN_THREAD) != 0)

  1536.                 {

  1537.                     try {

  1538.                         plugin->uiIdle();

  1539.                     } CARLA_SAFE_EXCEPTION_CONTINUE("Plugin uiIdle");

  1540.                 }

  1541.             }

  1542.         }

  1543. 

  1544.         if (fUiServer.isPipeRunning())

  1545.         {

  1546.             fUiServer.idlePipe();

  1547. 

  1548.             const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1549. #ifndef CARLA_OS_WIN

  1550.             const EngineTimeInfo& timeInfo(pData->timeInfo);

  1551.             const ScopedLocale csl;

  1552. 

  1553.             // send transport

  1554.             fUiServer.writeAndFixMessage("transport");

  1555.             fUiServer.writeMessage(timeInfo.playing ? "true\n" : "false\n");

  1556. 

  1557.             if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1558.             {

  1559.                 std::sprintf(fTmpBuf, P_UINT64 ":%i:%i:%i\n", timeInfo.frame, timeInfo.bbt.bar, timeInfo.bbt.beat, timeInfo.bbt.tick);

  1560.                 fUiServer.writeMessage(fTmpBuf);

  1561.                 std::sprintf(fTmpBuf, "%f\n", timeInfo.bbt.beatsPerMinute);

  1562.                 fUiServer.writeMessage(fTmpBuf);

  1563.             }

  1564.             else

  1565.             {

  1566.                 std::sprintf(fTmpBuf, P_UINT64 ":0:0:0\n", timeInfo.frame);

  1567.                 fUiServer.writeMessage(fTmpBuf);

  1568.                 fUiServer.writeMessage("0.0\n");

  1569.             }

  1570. 

  1571.             fUiServer.flushMessages();

  1572. #endif

  1573. 

  1574.             // send peaks and param outputs for all plugins

  1575.             for (uint i=0; i < pData->curPluginCount; ++i)

  1576.             {

  1577.                 const EnginePluginData& plugData(pData->plugins[i]);

  1578.                 const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1579. 

  1580.                 std::sprintf(fTmpBuf, "PEAKS_%i\n", i);

  1581.                 fUiServer.writeMessage(fTmpBuf);

  1582. 

  1583.                 std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);

  1584.                 fUiServer.writeMessage(fTmpBuf);

  1585.                 fUiServer.flushMessages();

  1586. 

  1587.                 for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1588.                 {

  1589.                     if (! plugin->isParameterOutput(j))

  1590.                         continue;

  1591. 

  1592.                     std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1593.                     fUiServer.writeMessage(fTmpBuf);

  1594.                     std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));

  1595.                     fUiServer.writeMessage(fTmpBuf);

  1596.                     fUiServer.flushMessages();

  1597.                 }

  1598.             }

  1599.         }

  1600. 

  1601.         switch (fUiServer.getAndResetUiState())

  1602.         {

  1603.         case CarlaExternalUI::UiNone:

  1604.         case CarlaExternalUI::UiShow:

  1605.             break;

  1606.         case CarlaExternalUI::UiCrashed:

  1607.             pHost->dispatcher(pHost->handle, NATIVE_HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1608.             break;

  1609.         case CarlaExternalUI::UiHide:

  1610.             pHost->ui_closed(pHost->handle);

  1611.             fUiServer.stopPipeServer(1000);

  1612.             break;

  1613.         }

  1614.     }

  1615. 

  1616.     // -------------------------------------------------------------------

  1617.     // Plugin state calls

  1618. 

  1619.     char* getState() const

  1620.     {

  1621.         MemoryOutputStream out;

  1622.         saveProjectInternal(out);

  1623.         return strdup(out.toString().toRawUTF8());

  1624.     }

  1625. 

  1626.     void setState(const char* const data)

  1627.     {

  1628.         // remove all plugins from UI side

  1629.         for (uint i=0, count=pData->curPluginCount; i < count; ++i)

  1630.             CarlaEngine::callback(ENGINE_CALLBACK_PLUGIN_REMOVED, count-i-1, 0, 0, 0.0f, nullptr);

  1631. 

  1632.         // remove all plugins from backend, no lock

  1633.         fIsRunning = false;

  1634.         removeAllPlugins();

  1635.         fIsRunning = true;

  1636. 

  1637.         // stopped during removeAllPlugins()

  1638.         if (! pData->thread.isThreadRunning())

  1639.             pData->thread.startThread();

  1640. 

  1641.         fOptionsForced = true;

  1642.         const String state(data);

  1643.         XmlDocument xml(state);

  1644.         loadProjectInternal(xml);

  1645.     }

  1646. 

  1647.     // -------------------------------------------------------------------

  1648. 

  1649. public:

  1650.     #define handlePtr ((CarlaEngineNative*)handle)

  1651. 

  1652.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1653.     {

  1654.         return new CarlaEngineNative(host, false);

  1655.     }

  1656. 

  1657.     static void _cleanup(NativePluginHandle handle)

  1658.     {

  1659.         delete handlePtr;

  1660.     }

  1661. 

  1662.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1663.     {

  1664.         return handlePtr->getParameterCount();

  1665.     }

  1666. 

  1667.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1668.     {

  1669.         return handlePtr->getParameterInfo(index);

  1670.     }

  1671. 

  1672.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1673.     {

  1674.         return handlePtr->getParameterValue(index);

  1675.     }

  1676. 

  1677.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1678.     {

  1679.         return handlePtr->getMidiProgramCount();

  1680.     }

  1681. 

  1682.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1683.     {

  1684.         return handlePtr->getMidiProgramInfo(index);

  1685.     }

  1686. 

  1687.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1688.     {

  1689.         handlePtr->setParameterValue(index, value);

  1690.     }

  1691. 

  1692.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1693.     {

  1694.         handlePtr->setMidiProgram(channel, bank, program);

  1695.     }

  1696. 

  1697.     static void _ui_show(NativePluginHandle handle, bool show)

  1698.     {

  1699.         handlePtr->uiShow(show);

  1700.     }

  1701. 

  1702.     static void _ui_idle(NativePluginHandle handle)

  1703.     {

  1704.         handlePtr->uiIdle();

  1705.     }

  1706. 

  1707.     static void _activate(NativePluginHandle handle)

  1708.     {

  1709.         handlePtr->activate();

  1710.     }

  1711. 

  1712.     static void _deactivate(NativePluginHandle handle)

  1713.     {

  1714.         handlePtr->deactivate();

  1715.     }

  1716. 

  1717.     static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1718.     {

  1719.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1720.     }

  1721. 

  1722.     static char* _get_state(NativePluginHandle handle)

  1723.     {

  1724.         return handlePtr->getState();

  1725.     }

  1726. 

  1727.     static void _set_state(NativePluginHandle handle, const char* data)

  1728.     {

  1729.         handlePtr->setState(data);

  1730.     }

  1731. 

  1732.     static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1733.     {

  1734.         switch(opcode)

  1735.         {

  1736.         case NATIVE_PLUGIN_OPCODE_NULL:

  1737.             if (static_cast<uint32_t>(index) == 0xDEADF00D && static_cast<uintptr_t>(value) == 0xC0C0B00B)

  1738.             {

  1739.                 handlePtr->fWaitForReadyMsg = true;

  1740.                 return handlePtr->fUiServer.getRemoteWinId();

  1741.             }

  1742.             return 0;

  1743.         case NATIVE_PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1744.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1745.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1746.             return 0;

  1747.         case NATIVE_PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1748.             CARLA_SAFE_ASSERT_RETURN(opt > 0.0, 0);

  1749.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1750.             return 0;

  1751.         case NATIVE_PLUGIN_OPCODE_OFFLINE_CHANGED:

  1752.             handlePtr->offlineModeChanged(value != 0);

  1753.             return 0;

  1754.         case NATIVE_PLUGIN_OPCODE_UI_NAME_CHANGED:

  1755.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1756.             return 0;

  1757.         }

  1758. 

  1759.         return 0;

  1760. 

  1761.         // unused

  1762.         (void)index;

  1763.         (void)ptr;

  1764.     }

  1765. 

  1766.     // -------------------------------------------------------------------

  1767. 

  1768.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)

  1769.     {

  1770.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);

  1771.     }

  1772. 

  1773.     // -------------------------------------------------------------------

  1774. 

  1775.     #undef handlePtr

  1776. 

  1777. private:

  1778.     const NativeHostDescriptor* const pHost;

  1779. 

  1780.     bool fIsActive, fIsRunning;

  1781.     CarlaEngineNativeUI fUiServer;

  1782. 

  1783.     bool fOptionsForced;

  1784.     bool fWaitForReadyMsg;

  1785.     char fTmpBuf[STR_MAX+1];

  1786. 

  1787.     CarlaPlugin* _getFirstPlugin() const noexcept

  1788.     {

  1789.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1790.             return nullptr;

  1791. 

  1792.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1793. 

  1794.         if (plugin == nullptr || ! plugin->isEnabled())

  1795.             return nullptr;

  1796. 

  1797.         return pData->plugins[0].plugin;

  1798.     }

  1799. 

  1800.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1801. };

  1802. 

  1803. // -----------------------------------------------------------------------

  1804. 

  1805. static const NativePluginDescriptor carlaRackDesc = {

  1806.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1807.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1808.                                                   |NATIVE_PLUGIN_HAS_UI

  1809.                                                   //|NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1810.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  1811.                                                   |NATIVE_PLUGIN_USES_STATE

  1812.                                                   |NATIVE_PLUGIN_USES_TIME),

  1813.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1814.     /* audioIns  */ 2,

  1815.     /* audioOuts */ 2,

  1816.     /* midiIns   */ 1,

  1817.     /* midiOuts  */ 1,

  1818.     /* paramIns  */ 0,

  1819.     /* paramOuts */ 0,

  1820.     /* name      */ "Carla-Rack",

  1821.     /* label     */ "carlarack",

  1822.     /* maker     */ "falkTX",

  1823.     /* copyright */ "GNU GPL v2+",

  1824.     CarlaEngineNative::_instantiateRack,

  1825.     CarlaEngineNative::_cleanup,

  1826.     CarlaEngineNative::_get_parameter_count,

  1827.     CarlaEngineNative::_get_parameter_info,

  1828.     CarlaEngineNative::_get_parameter_value,

  1829.     CarlaEngineNative::_get_midi_program_count,

  1830.     CarlaEngineNative::_get_midi_program_info,

  1831.     CarlaEngineNative::_set_parameter_value,

  1832.     CarlaEngineNative::_set_midi_program,

  1833.     /* _set_custom_data        */ nullptr,

  1834.     CarlaEngineNative::_ui_show,

  1835.     CarlaEngineNative::_ui_idle,

  1836.     /* _ui_set_parameter_value */ nullptr,

  1837.     /* _ui_set_midi_program    */ nullptr,

  1838.     /* _ui_set_custom_data     */ nullptr,

  1839.     CarlaEngineNative::_activate,

  1840.     CarlaEngineNative::_deactivate,

  1841.     CarlaEngineNative::_process,

  1842.     CarlaEngineNative::_get_state,

  1843.     CarlaEngineNative::_set_state,

  1844.     CarlaEngineNative::_dispatcher

  1845. };

  1846. 

  1847. CARLA_BACKEND_END_NAMESPACE

  1848. 

  1849. // -----------------------------------------------------------------------

  1850. 

  1851. CARLA_EXPORT

  1852. void carla_register_native_plugin_carla();

  1853. 

  1854. void carla_register_native_plugin_carla()

  1855. {

  1856.     CARLA_BACKEND_USE_NAMESPACE;

  1857.     carla_register_native_plugin(&carlaRackDesc);

  1858. }

  1859. 

  1860. // -----------------------------------------------------------------------

  1861. 

  1862. CARLA_EXPORT

  1863. const NativePluginDescriptor* carla_get_native_rack_plugin();

  1864. const NativePluginDescriptor* carla_get_native_rack_plugin()

  1865. {

  1866.     CARLA_BACKEND_USE_NAMESPACE;

  1867.     return &carlaRackDesc;

  1868. }

  1869. 

  1870. // -----------------------------------------------------------------------

  1871. // Extra stuff for linking purposes

  1872. 

  1873. #ifdef CARLA_PLUGIN_EXPORT

  1874. 

  1875. CARLA_BACKEND_START_NAMESPACE

  1876. 

  1877. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  1878. 

  1879. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi)           { return nullptr; }

  1880. uint               CarlaEngine::getRtAudioApiCount()                 { return 0;       }

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

  1882. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const uint) { return nullptr; }

  1883. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const uint, const char* const) { return nullptr; }

  1884. 

  1885. CARLA_BACKEND_END_NAMESPACE

  1886. 

  1887. #include "CarlaHostCommon.cpp"

  1888. #include "CarlaPluginUI.cpp"

  1889. #include "CarlaDssiUtils.cpp"

  1890. #include "CarlaPatchbayUtils.cpp"

  1891. #include "CarlaPipeUtils.cpp"

  1892. #include "CarlaStateUtils.cpp"

  1893. 

  1894. #endif

  1895. 

  1896. // -----------------------------------------------------------------------