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

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  1. /*

  2.  * Carla Plugin Host

  3.  * Copyright (C) 2011-2014 Filipe Coelho <falktx@falktx.com>

  4.  *

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

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

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

  8.  * the License, or any later version.

  9.  *

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

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

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

  13.  * GNU General Public License for more details.

  14.  *

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

  16.  */

  17. 

  18. #include "CarlaDefines.h"

  19. 

  20. #ifdef BUILD_BRIDGE

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

  22. #endif

  23. 

  24. #include "CarlaEngineInternal.hpp"

  25. #include "CarlaPlugin.hpp"

  26. 

  27. #include "CarlaBackendUtils.hpp"

  28. #include "CarlaBase64Utils.hpp"

  29. #include "CarlaBinaryUtils.hpp"

  30. #include "CarlaMathUtils.hpp"

  31. #include "CarlaStateUtils.hpp"

  32. 

  33. #include "CarlaExternalUI.hpp"

  34. #include "CarlaHost.h"

  35. #include "CarlaNative.hpp"

  36. 

  37. #include "juce_audio_basics.h"

  38. 

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

  40. # include "juce_gui_basics.h"

  41. #else

  42. namespace juce {

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

  44. } // namespace juce

  45. #endif

  46. 

  47. using juce::File;

  48. using juce::FloatVectorOperations;

  49. using juce::MemoryOutputStream;

  50. using juce::ScopedPointer;

  51. using juce::String;

  52. using juce::XmlDocument;

  53. using juce::XmlElement;

  54. 

  55. static bool gNeedsJuceHandling = false;

  56. static int  gJuceReferenceCounter = 0;

  57. 

  58. CARLA_BACKEND_START_NAMESPACE

  59. 

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

  61. 

  62. class CarlaEngineNativeUI : public CarlaExternalUI

  63. {

  64. public:

  65.     CarlaEngineNativeUI(CarlaEngine* const engine)

  66.         : fEngine(engine),

  67.           leakDetector_CarlaEngineNativeUI()

  68.     {

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

  70.     }

  71. 

  72.     ~CarlaEngineNativeUI() noexcept override

  73.     {

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

  75.     }

  76. 

  77. protected:

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

  79.     {

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

  81.             return true;

  82. 

  83.         bool ok = true;

  84. 

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

  86.         {

  87.             uint32_t option;

  88.             int32_t value;

  89.             const char* valueStr = nullptr;

  90. 

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

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

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

  94. 

  95.             try {

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

  97.             } CARLA_SAFE_EXCEPTION("setOption");

  98. 

  99.             if (valueStr != nullptr)

  100.                 delete[] valueStr;

  101.         }

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

  103.         {

  104.             const char* filename;

  105. 

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

  107. 

  108.             try {

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

  110.             } CARLA_SAFE_EXCEPTION("loadFile");

  111. 

  112.             delete[] filename;

  113.         }

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

  115.         {

  116.             const char* filename;

  117. 

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

  119. 

  120.             try {

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

  122.             } CARLA_SAFE_EXCEPTION("loadProject");

  123. 

  124.             delete[] filename;

  125.         }

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

  127.         {

  128.             const char* filename;

  129. 

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

  131. 

  132.             try {

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

  134.             } CARLA_SAFE_EXCEPTION("saveProject");

  135. 

  136.             delete[] filename;

  137.         }

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

  139.         {

  140.             uint32_t groupA, portA, groupB, portB;

  141. 

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

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

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

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

  146. 

  147.             try {

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

  149.             } CARLA_SAFE_EXCEPTION("patchbayConnect");

  150.         }

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

  152.         {

  153.             uint32_t connectionId;

  154. 

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

  156. 

  157.             try {

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

  159.             } CARLA_SAFE_EXCEPTION("patchbayDisconnect");

  160.         }

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

  162.         {

  163.             try {

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

  165.             } CARLA_SAFE_EXCEPTION("patchbayRefresh");

  166.         }

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

  168.         {

  169.             fEngine->transportPlay();

  170.         }

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

  172.         {

  173.             fEngine->transportPause();

  174.         }

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

  176.         {

  177.             uint64_t frame;

  178. 

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

  180. 

  181.             fEngine->transportRelocate(frame);

  182.         }

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

  184.         {

  185.             uint32_t btype, ptype;

  186.             const char* filename = nullptr;

  187.             const char* name;

  188.             const char* label;

  189.             int64_t uniqueId;

  190.             uint options;

  191. 

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

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

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

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

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

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

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

  199. 

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

  201.             {

  202.                 delete[] filename;

  203.                 filename = nullptr;

  204.             }

  205. 

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

  207.             {

  208.                 delete[] name;

  209.                 name = nullptr;

  210.             }

  211. 

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

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

  214. 

  215.             if (filename != nullptr)

  216.                 delete[] filename;

  217.             if (name != nullptr)

  218.                 delete[] name;

  219.             delete[] label;

  220.         }

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

  222.         {

  223.             uint32_t pluginId;

  224. 

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

  226. 

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

  228.         }

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

  230.         {

  231.             ok = fEngine->removeAllPlugins();

  232.         }

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

  234.         {

  235.             uint32_t pluginId;

  236.             const char* newName;

  237. 

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

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

  240. 

  241.             // TODO

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

  243. 

  244.             delete[] newName;

  245.         }

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

  247.         {

  248.             uint32_t pluginId;

  249. 

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

  251. 

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

  253.         }

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

  255.         {

  256.             uint32_t pluginId;

  257. 

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

  259. 

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

  261.         }

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

  263.         {

  264.             uint32_t pluginIdA, pluginIdB;

  265. 

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

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

  268. 

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

  270.         }

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

  272.         {

  273.             uint32_t pluginId;

  274.             const char* filename;

  275. 

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

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

  278. 

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

  280.                 plugin->loadStateFromFile(filename);

  281. 

  282.             delete[] filename;

  283.         }

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

  285.         {

  286.             uint32_t pluginId;

  287.             const char* filename;

  288. 

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

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

  291. 

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

  293.                 plugin->saveStateToFile(filename);

  294. 

  295.             delete[] filename;

  296.         }

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

  298.         {

  299.             uint32_t pluginId, option;

  300.             bool yesNo;

  301. 

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

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

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

  305. 

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

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

  308.         }

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

  310.         {

  311.             uint32_t pluginId;

  312.             bool onOff;

  313. 

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

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

  316. 

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

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

  319.         }

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

  321.         {

  322.             uint32_t pluginId;

  323.             float value;

  324. 

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

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

  327. 

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

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

  330.         }

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

  332.         {

  333.             uint32_t pluginId;

  334.             float value;

  335. 

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

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

  338. 

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

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

  341.         }

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

  343.         {

  344.             uint32_t pluginId;

  345.             float value;

  346. 

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

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

  349. 

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

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

  352.         }

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

  354.         {

  355.             uint32_t pluginId;

  356.             float value;

  357. 

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

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

  360. 

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

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

  363.         }

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

  365.         {

  366.             uint32_t pluginId;

  367.             float value;

  368. 

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

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

  371. 

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

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

  374.         }

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

  376.         {

  377.             uint32_t pluginId;

  378.             int32_t channel;

  379. 

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

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

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

  383. 

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

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

  386.         }

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

  388.         {

  389.             uint32_t pluginId, parameterId;

  390.             float value;

  391. 

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

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

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

  395. 

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

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

  398.         }

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

  400.         {

  401.             uint32_t pluginId, parameterId, channel;

  402. 

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

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

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

  406.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  407. 

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

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

  410.         }

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

  412.         {

  413.             uint32_t pluginId, parameterId;

  414.             int32_t cc;

  415. 

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

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

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

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

  420. 

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

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

  423.         }

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

  425.         {

  426.             uint32_t pluginId;

  427.             int32_t index;

  428. 

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

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

  431. 

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

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

  434.         }

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

  436.         {

  437.             uint32_t pluginId;

  438.             int32_t index;

  439. 

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

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

  442. 

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

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

  445.         }

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

  447.         {

  448.             uint32_t pluginId;

  449.             const char* type;

  450.             const char* key;

  451.             const char* value;

  452. 

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

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

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

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

  457. 

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

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

  460. 

  461.             delete[] type;

  462.             delete[] key;

  463.             delete[] value;

  464.         }

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

  466.         {

  467.             uint32_t pluginId;

  468.             const char* cdata;

  469. 

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

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

  472. 

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

  474.             {

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

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

  477.             }

  478. 

  479.             delete[] cdata;

  480.         }

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

  482.         {

  483.             uint32_t pluginId;

  484. 

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

  486. 

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

  488.                 plugin->prepareForSave();

  489.         }

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

  491.         {

  492.             uint32_t pluginId;

  493. 

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

  495. 

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

  497.                 plugin->resetParameters();

  498.         }

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

  500.         {

  501.             uint32_t pluginId;

  502. 

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

  504. 

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

  506.                 plugin->randomizeParameters();

  507.         }

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

  509.         {

  510.             uint32_t pluginId, channel, note, velocity;

  511. 

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

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

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

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

  516.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  517.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_VALUE, true);

  518.             CARLA_SAFE_ASSERT_RETURN(velocity < MAX_MIDI_VALUE, true);

  519. 

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

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

  522.         }

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

  524.         {

  525.             uint32_t pluginId;

  526.             bool yesNo;

  527. 

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

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

  530. 

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

  532.                 plugin->showCustomUI(yesNo);

  533.         }

  534.         else

  535.         {

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

  537.             return false;

  538.         }

  539. 

  540.         if (! ok)

  541.         {

  542.             const CarlaMutexLocker cml(getPipeLock());

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

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

  545.             flushMessages();

  546.         }

  547. 

  548.         return true;

  549.     }

  550. 

  551. private:

  552.     CarlaEngine* const fEngine;

  553. 

  554.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  555. };

  556. 

  557. // -----------------------------------------------------------------------

  558. 

  559. class CarlaEngineNative : public CarlaEngine

  560. {

  561. public:

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

  563.         : CarlaEngine(),

  564.           pHost(host),

  565.           kIsPatchbay(isPatchbay),

  566.           fIsActive(false),

  567.           fIsRunning(false),

  568.           fUiServer(this),

  569.           fOptionsForced(false),

  570.           leakDetector_CarlaEngineNative()

  571.     {

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

  573. 

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

  575. 

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

  577.             juce::initialiseJuce_GUI();

  578. 

  579.         carla_zeroChar(fTmpBuf, STR_MAX+1);

  580. 

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

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

  583. 

  584.         if (outChan == 0)

  585.             outChan = inChan;

  586. 

  587.         // set-up engine

  588.         if (kIsPatchbay)

  589.         {

  590.             pData->options.processMode         = ENGINE_PROCESS_MODE_PATCHBAY;

  591.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  592.             pData->options.forceStereo         = false;

  593.             pData->options.preferPluginBridges = false;

  594.             pData->options.preferUiBridges     = false;

  595.             init("Carla-Patchbay");

  596.             pData->graph.create(false, pData->sampleRate, pData->bufferSize, inChan, outChan);

  597.         }

  598.         else

  599.         {

  600.             CARLA_SAFE_ASSERT(inChan == 2);

  601.             CARLA_SAFE_ASSERT(outChan == 2);

  602.             pData->options.processMode         = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;

  603.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  604.             pData->options.forceStereo         = true;

  605.             pData->options.preferPluginBridges = false;

  606.             pData->options.preferUiBridges     = false;

  607.             init("Carla-Rack");

  608.             pData->graph.create(true, pData->sampleRate, pData->bufferSize, 0, 0);

  609.         }

  610. 

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

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

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

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

  615. 

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

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

  618. 

  619.         setCallback(_ui_server_callback, this);

  620.     }

  621. 

  622.     ~CarlaEngineNative() override

  623.     {

  624.         CARLA_SAFE_ASSERT(! fIsActive);

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

  626. 

  627.         pData->aboutToClose = true;

  628.         fIsRunning = false;

  629. 

  630.         removeAllPlugins();

  631.         //runPendingRtEvents();

  632.         close();

  633. 

  634.         pData->graph.destroy();

  635. 

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

  637.             juce::shutdownJuce_GUI();

  638. 

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

  640.     }

  641. 

  642. protected:

  643.     // -------------------------------------

  644.     // CarlaEngine virtual calls

  645. 

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

  647.     {

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

  649. 

  650.         fIsRunning = true;

  651. 

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

  653.         {

  654.             close();

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

  656.             return false;

  657.         }

  658. 

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

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

  661. 

  662.         return true;

  663.     }

  664. 

  665.     bool close() override

  666.     {

  667.         fIsRunning = false;

  668.         CarlaEngine::close();

  669.         return true;

  670.     }

  671. 

  672.     bool isRunning() const noexcept override

  673.     {

  674.         return fIsRunning;

  675.     }

  676. 

  677.     bool isOffline() const noexcept override

  678.     {

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

  680.     }

  681. 

  682.     EngineType getType() const noexcept override

  683.     {

  684.         return kEngineTypePlugin;

  685.     }

  686. 

  687.     const char* getCurrentDriverName() const noexcept override

  688.     {

  689.         return "Plugin";

  690.     }

  691. 

  692.     // -------------------------------------------------------------------

  693. 

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

  695.     {

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

  697.         {

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

  699.             return retName;

  700.         }

  701. 

  702.         return nullptr;

  703.     }

  704. 

  705.     // -------------------------------------------------------------------

  706. 

  707.     void bufferSizeChanged(const uint32_t newBufferSize)

  708.     {

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

  710.             return;

  711. 

  712.         {

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

  714. 

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

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

  717.             fUiServer.writeMessage(fTmpBuf);

  718.             fUiServer.flushMessages();

  719.         }

  720. 

  721.         pData->bufferSize = newBufferSize;

  722.         CarlaEngine::bufferSizeChanged(newBufferSize);

  723.     }

  724. 

  725.     void sampleRateChanged(const double newSampleRate)

  726.     {

  727.         if (carla_compareFloats(pData->sampleRate, newSampleRate))

  728.             return;

  729. 

  730.         {

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

  732.             const ScopedLocale csl;

  733. 

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

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

  736.             fUiServer.writeMessage(fTmpBuf);

  737.             fUiServer.flushMessages();

  738.         }

  739. 

  740.         pData->sampleRate = newSampleRate;

  741.         CarlaEngine::sampleRateChanged(newSampleRate);

  742.     }

  743. 

  744.     // -------------------------------------------------------------------

  745. 

  746.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  747.     {

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

  749. 

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

  751. 

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

  753.         fUiServer.writeMessage(fTmpBuf);

  754. 

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

  756.         fUiServer.writeMessage(fTmpBuf);

  757. 

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

  759.         {

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

  761.             fUiServer.writeAndFixMessage(fTmpBuf);

  762.         }

  763.         else

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

  765. 

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

  767.         {

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

  769.             fUiServer.writeAndFixMessage(fTmpBuf);

  770.         }

  771.         else

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

  773. 

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

  775.         {

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

  777.             fUiServer.writeAndFixMessage(fTmpBuf);

  778.         }

  779.         else

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

  781. 

  782.         plugin->getRealName(fTmpBuf);

  783.         fUiServer.writeAndFixMessage(fTmpBuf);

  784. 

  785.         plugin->getLabel(fTmpBuf);

  786.         fUiServer.writeAndFixMessage(fTmpBuf);

  787. 

  788.         plugin->getMaker(fTmpBuf);

  789.         fUiServer.writeAndFixMessage(fTmpBuf);

  790. 

  791.         plugin->getCopyright(fTmpBuf);

  792.         fUiServer.writeAndFixMessage(fTmpBuf);

  793. 

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

  795.         fUiServer.writeMessage(fTmpBuf);

  796. 

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

  798.         fUiServer.writeMessage(fTmpBuf);

  799. 

  800.         fUiServer.flushMessages();

  801.     }

  802. 

  803.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  804.     {

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

  806.         const ScopedLocale csl;

  807. 

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

  809. 

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

  811.         {

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

  813.             fUiServer.writeMessage(fTmpBuf);

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

  815.             fUiServer.writeMessage(fTmpBuf);

  816.             fUiServer.flushMessages();

  817.         }

  818. 

  819.         uint32_t ins, outs, count;

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

  821.         count = plugin->getParameterCount();

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

  823.         fUiServer.writeMessage(fTmpBuf);

  824. 

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

  826.         {

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

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

  829. 

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

  831.             fUiServer.writeMessage(fTmpBuf);

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

  833.             fUiServer.writeMessage(fTmpBuf);

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

  835.             fUiServer.writeAndFixMessage(fTmpBuf);

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

  837.             fUiServer.writeAndFixMessage(fTmpBuf);

  838. 

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

  840.             fUiServer.writeMessage(fTmpBuf);

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

  842.             fUiServer.writeMessage(fTmpBuf);

  843. 

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

  845.             fUiServer.writeMessage(fTmpBuf);

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

  847.             fUiServer.writeMessage(fTmpBuf);

  848.         }

  849. 

  850.         fUiServer.flushMessages();

  851.     }

  852. 

  853.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  854.     {

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

  856. 

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

  858. 

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

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

  861.         fUiServer.writeMessage(fTmpBuf);

  862. 

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

  864.         {

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

  866.             fUiServer.writeMessage(fTmpBuf);

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

  868.             fUiServer.writeAndFixMessage(fTmpBuf);

  869.         }

  870. 

  871.         fUiServer.flushMessages();

  872. 

  873.         count = plugin->getMidiProgramCount();

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

  875.         fUiServer.writeMessage(fTmpBuf);

  876. 

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

  878.         {

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

  880.             fUiServer.writeMessage(fTmpBuf);

  881. 

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

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

  884.             fUiServer.writeMessage(fTmpBuf);

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

  886.             fUiServer.writeAndFixMessage(fTmpBuf);

  887.         }

  888. 

  889.         fUiServer.flushMessages();

  890.     }

  891. 

  892.     void uiServerSendPluginProperties(CarlaPlugin* const plugin)

  893.     {

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

  895. 

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

  897. 

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

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

  900.         fUiServer.writeMessage(fTmpBuf);

  901. 

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

  903.         {

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

  905.             CARLA_SAFE_ASSERT_CONTINUE(customData.isValid());

  906. 

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

  908.                 continue;

  909. 

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

  911.             fUiServer.writeMessage(fTmpBuf);

  912. 

  913.             fUiServer.writeAndFixMessage(customData.type);

  914.             fUiServer.writeAndFixMessage(customData.key);

  915.             fUiServer.writeAndFixMessage(customData.value);

  916.         }

  917. 

  918.         fUiServer.flushMessages();

  919.     }

  920. 

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

  922.     {

  923.         if (! fIsRunning)

  924.             return;

  925.         if (! fUiServer.isPipeRunning())

  926.             return;

  927. 

  928.         CarlaPlugin* plugin;

  929. 

  930.         switch (action)

  931.         {

  932.         case ENGINE_CALLBACK_UPDATE:

  933.             plugin = getPlugin(pluginId);

  934. 

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

  936.             {

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

  938.                 uiServerSendPluginProperties(plugin);

  939.             }

  940.             break;

  941. 

  942.         case ENGINE_CALLBACK_RELOAD_INFO:

  943.             plugin = getPlugin(pluginId);

  944. 

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

  946.             {

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

  948.                 uiServerSendPluginInfo(plugin);

  949.             }

  950.             break;

  951. 

  952.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  953.             plugin = getPlugin(pluginId);

  954. 

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

  956.             {

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

  958.                 uiServerSendPluginParameters(plugin);

  959.             }

  960.             break;

  961. 

  962.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  963.             plugin = getPlugin(pluginId);

  964. 

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

  966.             {

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

  968.                 uiServerSendPluginPrograms(plugin);

  969.             }

  970.             break;

  971. 

  972.         case ENGINE_CALLBACK_RELOAD_ALL:

  973.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  974.             plugin = getPlugin(pluginId);

  975. 

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

  977.             {

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

  979.                 uiServerSendPluginInfo(plugin);

  980.                 uiServerSendPluginParameters(plugin);

  981.                 uiServerSendPluginPrograms(plugin);

  982.                 uiServerSendPluginProperties(plugin);

  983.             }

  984.             break;

  985. 

  986.         default:

  987.             break;

  988.         }

  989. 

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

  991.         const ScopedLocale csl;

  992. 

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

  994.         fUiServer.writeMessage(fTmpBuf);

  995. 

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

  997.         fUiServer.writeMessage(fTmpBuf);

  998. 

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

  1000.         fUiServer.writeMessage(fTmpBuf);

  1001. 

  1002.         std::sprintf(fTmpBuf, "%i\n", value2);

  1003.         fUiServer.writeMessage(fTmpBuf);

  1004. 

  1005.         std::sprintf(fTmpBuf, "%f\n", value3);

  1006.         fUiServer.writeMessage(fTmpBuf);

  1007. 

  1008.         fUiServer.writeAndFixMessage(valueStr != nullptr ? valueStr : "");

  1009. 

  1010.         fUiServer.flushMessages();

  1011.     }

  1012. 

  1013.     void uiServerInfo()

  1014.     {

  1015.         CARLA_SAFE_ASSERT_RETURN(fIsRunning,);

  1016.         CARLA_SAFE_ASSERT_RETURN(fUiServer.isPipeRunning(),);

  1017. 

  1018.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1019. 

  1020.         fUiServer.writeAndFixMessage("max-plugin-number");

  1021.         std::sprintf(fTmpBuf, "%i\n", pData->maxPluginNumber);

  1022.         fUiServer.writeMessage(fTmpBuf);

  1023. 

  1024.         fUiServer.writeAndFixMessage("buffer-size");

  1025.         std::sprintf(fTmpBuf, "%i\n", pData->bufferSize);

  1026.         fUiServer.writeMessage(fTmpBuf);

  1027. 

  1028.         const ScopedLocale csl;

  1029. 

  1030.         fUiServer.writeAndFixMessage("sample-rate");

  1031.         std::sprintf(fTmpBuf, "%f\n", pData->sampleRate);

  1032.         fUiServer.writeMessage(fTmpBuf);

  1033. 

  1034.         fUiServer.flushMessages();

  1035.     }

  1036. 

  1037.     void uiServerOptions()

  1038.     {

  1039.         CARLA_SAFE_ASSERT_RETURN(fIsRunning,);

  1040.         CARLA_SAFE_ASSERT_RETURN(fUiServer.isPipeRunning(),);

  1041. 

  1042.         const EngineOptions& options(pData->options);

  1043.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1044. 

  1045.         const char* const optionsForcedStr(fOptionsForced ? "true\n" : "false\n");

  1046.         const std::size_t optionsForcedStrSize(fOptionsForced ? 5 : 6);

  1047. 

  1048.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PROCESS_MODE);

  1049.         fUiServer.writeMessage(fTmpBuf);

  1050.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1051.         std::sprintf(fTmpBuf, "%i\n", options.processMode);

  1052.         fUiServer.writeMessage(fTmpBuf);

  1053.         fUiServer.flushMessages();

  1054. 

  1055.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_TRANSPORT_MODE);

  1056.         fUiServer.writeMessage(fTmpBuf);

  1057.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1058.         std::sprintf(fTmpBuf, "%i\n", options.transportMode);

  1059.         fUiServer.writeMessage(fTmpBuf);

  1060.         fUiServer.flushMessages();

  1061. 

  1062.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_FORCE_STEREO);

  1063.         fUiServer.writeMessage(fTmpBuf);

  1064.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1065.         fUiServer.writeMessage(options.forceStereo ? "true\n" : "false\n");

  1066.         fUiServer.flushMessages();

  1067. 

  1068.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PREFER_PLUGIN_BRIDGES);

  1069.         fUiServer.writeMessage(fTmpBuf);

  1070.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1071.         fUiServer.writeMessage(options.preferPluginBridges ? "true\n" : "false\n");

  1072.         fUiServer.flushMessages();

  1073. 

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

  1075.         fUiServer.writeMessage(fTmpBuf);

  1076.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1077.         fUiServer.writeMessage(options.preferUiBridges ? "true\n" : "false\n");

  1078.         fUiServer.flushMessages();

  1079. 

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

  1081.         fUiServer.writeMessage(fTmpBuf);

  1082.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1083.         fUiServer.writeMessage(options.uisAlwaysOnTop ? "true\n" : "false\n");

  1084.         fUiServer.flushMessages();

  1085. 

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

  1087.         fUiServer.writeMessage(fTmpBuf);

  1088.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1089.         std::sprintf(fTmpBuf, "%i\n", options.maxParameters);

  1090.         fUiServer.writeMessage(fTmpBuf);

  1091.         fUiServer.flushMessages();

  1092. 

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

  1094.         fUiServer.writeMessage(fTmpBuf);

  1095.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1096.         std::sprintf(fTmpBuf, "%i\n", options.uiBridgesTimeout);

  1097.         fUiServer.writeMessage(fTmpBuf);

  1098.         fUiServer.flushMessages();

  1099. 

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

  1101.         fUiServer.writeMessage(fTmpBuf);

  1102.         fUiServer.writeMessage("true\n", 5);

  1103.         std::sprintf(fTmpBuf, "%s\n", options.binaryDir);

  1104.         fUiServer.writeMessage(fTmpBuf);

  1105.         fUiServer.flushMessages();

  1106. 

  1107.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PATH_RESOURCES);

  1108.         fUiServer.writeMessage(fTmpBuf);

  1109.         fUiServer.writeMessage("true\n", 5);

  1110.         std::sprintf(fTmpBuf, "%s\n", options.resourceDir);

  1111.         fUiServer.writeMessage(fTmpBuf);

  1112.         fUiServer.flushMessages();

  1113.     }

  1114. 

  1115.     // -------------------------------------------------------------------

  1116.     // Plugin parameter calls

  1117. 

  1118.     uint32_t getParameterCount() const

  1119.     {

  1120.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1121.             return plugin->getParameterCount();

  1122. 

  1123.         return 0;

  1124.     }

  1125. 

  1126.     const NativeParameter* getParameterInfo(const uint32_t index) const

  1127.     {

  1128.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1129.         {

  1130.             if (index < plugin->getParameterCount())

  1131.             {

  1132.                 static NativeParameter param;

  1133.                 static char strBufName[STR_MAX+1];

  1134.                 static char strBufUnit[STR_MAX+1];

  1135. 

  1136.                 const ParameterData& paramData(plugin->getParameterData(index));

  1137.                 const ParameterRanges& paramRanges(plugin->getParameterRanges(index));

  1138. 

  1139.                 plugin->getParameterName(index, strBufName);

  1140.                 plugin->getParameterUnit(index, strBufUnit);

  1141. 

  1142.                 uint hints = 0x0;

  1143. 

  1144.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  1145.                     hints |= NATIVE_PARAMETER_IS_BOOLEAN;

  1146.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  1147.                     hints |= NATIVE_PARAMETER_IS_INTEGER;

  1148.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  1149.                     hints |= NATIVE_PARAMETER_IS_LOGARITHMIC;

  1150.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  1151.                     hints |= NATIVE_PARAMETER_IS_AUTOMABLE;

  1152.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  1153.                     hints |= NATIVE_PARAMETER_USES_SAMPLE_RATE;

  1154.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  1155.                     hints |= NATIVE_PARAMETER_USES_SCALEPOINTS;

  1156.                 if (paramData.hints & PARAMETER_USES_CUSTOM_TEXT)

  1157.                     hints |= NATIVE_PARAMETER_USES_CUSTOM_TEXT;

  1158. 

  1159.                 if (paramData.type == PARAMETER_INPUT || paramData.type == PARAMETER_OUTPUT)

  1160.                 {

  1161.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  1162.                         hints |= NATIVE_PARAMETER_IS_ENABLED;

  1163.                     if (paramData.type == PARAMETER_OUTPUT)

  1164.                         hints |= NATIVE_PARAMETER_IS_OUTPUT;

  1165.                 }

  1166. 

  1167.                 param.hints = static_cast<NativeParameterHints>(hints);

  1168.                 param.name  = strBufName;

  1169.                 param.unit  = strBufUnit;

  1170.                 param.ranges.def = paramRanges.def;

  1171.                 param.ranges.min = paramRanges.min;

  1172.                 param.ranges.max = paramRanges.max;

  1173.                 param.ranges.step = paramRanges.step;

  1174.                 param.ranges.stepSmall = paramRanges.stepSmall;

  1175.                 param.ranges.stepLarge = paramRanges.stepLarge;

  1176.                 param.scalePointCount = 0; // TODO

  1177.                 param.scalePoints = nullptr;

  1178. 

  1179.                 return &param;

  1180.             }

  1181.         }

  1182. 

  1183.         return nullptr;

  1184.     }

  1185. 

  1186.     float getParameterValue(const uint32_t index) const

  1187.     {

  1188.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1189.         {

  1190.             if (index < plugin->getParameterCount())

  1191.                 return plugin->getParameterValue(index);

  1192.         }

  1193. 

  1194.         return 0.0f;

  1195.     }

  1196. 

  1197.     const char* getParameterText(const uint32_t index /*, const float value*/) const

  1198.     {

  1199.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1200.         {

  1201.             if (index < plugin->getParameterCount())

  1202.             {

  1203.                 static char strBuf[STR_MAX+1];

  1204.                 carla_zeroChar(strBuf, STR_MAX+1);

  1205. 

  1206.                 plugin->getParameterText(index, /*value,*/ strBuf);

  1207. 

  1208.                 return strBuf;

  1209.             }

  1210.         }

  1211. 

  1212.         return nullptr;

  1213.     }

  1214. 

  1215.     // -------------------------------------------------------------------

  1216.     // Plugin midi-program calls

  1217. 

  1218.     uint32_t getMidiProgramCount() const

  1219.     {

  1220.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1221.             return plugin->getMidiProgramCount();

  1222. 

  1223.         return 0;

  1224.     }

  1225. 

  1226.     const NativeMidiProgram* getMidiProgramInfo(const uint32_t index) const

  1227.     {

  1228.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1229.         {

  1230.             if (index < plugin->getMidiProgramCount())

  1231.             {

  1232.                 static NativeMidiProgram midiProg;

  1233. 

  1234.                 {

  1235.                     const MidiProgramData& midiProgData(plugin->getMidiProgramData(index));

  1236. 

  1237.                     midiProg.bank    = midiProgData.bank;

  1238.                     midiProg.program = midiProgData.program;

  1239.                     midiProg.name    = midiProgData.name;

  1240.                 }

  1241. 

  1242.                 return &midiProg;

  1243.             }

  1244.         }

  1245. 

  1246.         return nullptr;

  1247.     }

  1248. 

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

  1250.     // Plugin state calls

  1251. 

  1252.     void setParameterValue(const uint32_t index, const float value)

  1253.     {

  1254.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1255.         {

  1256.             if (index < plugin->getParameterCount())

  1257.                 plugin->setParameterValue(index, value, false, false, false);

  1258.         }

  1259.     }

  1260. 

  1261.     void setMidiProgram(const uint8_t, const uint32_t bank, const uint32_t program)

  1262.     {

  1263.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1264.             plugin->setMidiProgramById(bank, program, false, false, false);

  1265.     }

  1266. 

  1267.     // -------------------------------------------------------------------

  1268.     // Plugin process calls

  1269. 

  1270.     void activate()

  1271.     {

  1272. #if 0

  1273.         for (uint32_t i=0; i < pData->curPluginCount; ++i)

  1274.         {

  1275.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1276. 

  1277.             if (plugin == nullptr || ! plugin->isEnabled())

  1278.                 continue;

  1279. 

  1280.             plugin->setActive(true, true, false);

  1281.         }

  1282. #endif

  1283.         fIsActive = true;

  1284.     }

  1285. 

  1286.     void deactivate()

  1287.     {

  1288.         fIsActive = false;

  1289. #if 0

  1290.         for (uint32_t i=0; i < pData->curPluginCount; ++i)

  1291.         {

  1292.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1293. 

  1294.             if (plugin == nullptr || ! plugin->isEnabled())

  1295.                 continue;

  1296. 

  1297.             plugin->setActive(false, true, false);

  1298.         }

  1299. #endif

  1300. 

  1301.         // just in case

  1302.         //runPendingRtEvents();

  1303.     }

  1304. 

  1305.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames, const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1306.     {

  1307.         const PendingRtEventsRunner prt(this);

  1308. 

  1309.         // ---------------------------------------------------------------

  1310.         // Time Info

  1311. 

  1312.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1313. 

  1314.         pData->timeInfo.playing = timeInfo->playing;

  1315.         pData->timeInfo.frame   = timeInfo->frame;

  1316.         pData->timeInfo.usecs   = timeInfo->usecs;

  1317.         pData->timeInfo.valid   = 0x0;

  1318. 

  1319.         if (timeInfo->bbt.valid)

  1320.         {

  1321.             pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;

  1322. 

  1323.             pData->timeInfo.bbt.bar = timeInfo->bbt.bar;

  1324.             pData->timeInfo.bbt.beat = timeInfo->bbt.beat;

  1325.             pData->timeInfo.bbt.tick = timeInfo->bbt.tick;

  1326.             pData->timeInfo.bbt.barStartTick = timeInfo->bbt.barStartTick;

  1327. 

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

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

  1330. 

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

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

  1333.         }

  1334. 

  1335.         // ---------------------------------------------------------------

  1336.         // Do nothing if no plugins and rack mode

  1337. 

  1338.         if (pData->curPluginCount == 0 && ! kIsPatchbay)

  1339.         {

  1340.             FloatVectorOperations::copy(outBuffer[0], inBuffer[0], static_cast<int>(frames));

  1341.             FloatVectorOperations::copy(outBuffer[1], inBuffer[1], static_cast<int>(frames));

  1342.             return;

  1343.         }

  1344. 

  1345.         // ---------------------------------------------------------------

  1346.         // initialize events

  1347. 

  1348.         carla_zeroStruct<EngineEvent>(pData->events.in,  kMaxEngineEventInternalCount);

  1349.         carla_zeroStruct<EngineEvent>(pData->events.out, kMaxEngineEventInternalCount);

  1350. 

  1351.         // ---------------------------------------------------------------

  1352.         // events input (before processing)

  1353. 

  1354.         {

  1355.             uint32_t engineEventIndex = 0;

  1356. 

  1357.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kMaxEngineEventInternalCount; ++i)

  1358.             {

  1359.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1360.                 EngineEvent&           engineEvent(pData->events.in[engineEventIndex++]);

  1361. 

  1362.                 engineEvent.time = midiEvent.time;

  1363.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data);

  1364. 

  1365.                 if (engineEventIndex >= kMaxEngineEventInternalCount)

  1366.                     break;

  1367.             }

  1368.         }

  1369. 

  1370.         if (kIsPatchbay)

  1371.         {

  1372.             // -----------------------------------------------------------

  1373.             // process

  1374. 

  1375.             pData->graph.process(pData, inBuffer, outBuffer, frames);

  1376.         }

  1377.         else

  1378.         {

  1379.             // -----------------------------------------------------------

  1380.             // create audio buffers

  1381. 

  1382.             const float* inBuf[2]  = {  inBuffer[0],  inBuffer[1] };

  1383.             /* */ float* outBuf[2] = { outBuffer[0], outBuffer[1] };

  1384. 

  1385.             // -----------------------------------------------------------

  1386.             // process

  1387. 

  1388.             pData->graph.processRack(pData, inBuf, outBuf, frames);

  1389.         }

  1390. 

  1391.         // ---------------------------------------------------------------

  1392.         // events output (after processing)

  1393. 

  1394.         carla_zeroStruct<EngineEvent>(pData->events.in, kMaxEngineEventInternalCount);

  1395. 

  1396.         {

  1397.             NativeMidiEvent midiEvent;

  1398. 

  1399.             for (uint32_t i=0; i < kMaxEngineEventInternalCount; ++i)

  1400.             {

  1401.                 const EngineEvent& engineEvent(pData->events.out[i]);

  1402. 

  1403.                 if (engineEvent.type == kEngineEventTypeNull)

  1404.                     break;

  1405. 

  1406.                 midiEvent.time = engineEvent.time;

  1407. 

  1408.                 if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)

  1409.                 {

  1410.                     midiEvent.port = 0;

  1411.                     engineEvent.ctrl.convertToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);

  1412.                 }

  1413.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1414.                 {

  1415.                     if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)

  1416.                         continue;

  1417. 

  1418.                     midiEvent.port = engineEvent.midi.port;

  1419.                     midiEvent.size = engineEvent.midi.size;

  1420. 

  1421.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);

  1422. 

  1423.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1424.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1425.                 }

  1426.                 else

  1427.                 {

  1428.                     carla_stderr("Unknown event type...");

  1429.                     continue;

  1430.                 }

  1431. 

  1432.                 pHost->write_midi_event(pHost->handle, &midiEvent);

  1433.             }

  1434.         }

  1435.     }

  1436. 

  1437.     // -------------------------------------------------------------------

  1438.     // Plugin UI calls

  1439. 

  1440.     void uiShow(const bool show)

  1441.     {

  1442.         if (show)

  1443.         {

  1444.             if (fUiServer.isPipeRunning())

  1445.             {

  1446.                 fUiServer.writeFocusMessage();

  1447.                 return;

  1448.             }

  1449. 

  1450.             CarlaString path(pHost->resourceDir);

  1451. 

  1452.             if (kIsPatchbay)

  1453.                 path += CARLA_OS_SEP_STR "carla-plugin-patchbay";

  1454.             else

  1455.                 path += CARLA_OS_SEP_STR "carla-plugin";

  1456. // #ifdef CARLA_OS_WIN

  1457. //             path += ".exe";

  1458. // #endif

  1459.             carla_stdout("Trying to start carla-plugin using \"%s\"", path.buffer());

  1460. 

  1461.             fUiServer.setData(path, pData->sampleRate, pHost->uiName);

  1462. 

  1463.             if (! fUiServer.startPipeServer(false))

  1464.             {

  1465.                 pHost->dispatcher(pHost->handle, NATIVE_HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1466.                 return;

  1467.             }

  1468. 

  1469.             uiServerInfo();

  1470.             uiServerOptions();

  1471.             uiServerCallback(ENGINE_CALLBACK_ENGINE_STARTED, 0, pData->options.processMode, pData->options.transportMode, 0.0f, "Plugin");

  1472. 

  1473.             fUiServer.writeShowMessage();

  1474. 

  1475.             for (uint i=0; i < pData->curPluginCount; ++i)

  1476.             {

  1477.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1478. 

  1479.                 if (plugin != nullptr && plugin->isEnabled())

  1480.                 {

  1481.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());

  1482.                 }

  1483.             }

  1484. 

  1485.             if (kIsPatchbay)

  1486.                 patchbayRefresh(false);

  1487.         }

  1488.         else

  1489.         {

  1490.             fUiServer.stopPipeServer(5000);

  1491.         }

  1492.     }

  1493. 

  1494.     void uiIdle()

  1495.     {

  1496.         for (uint i=0; i < pData->curPluginCount; ++i)

  1497.         {

  1498.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1499. 

  1500.             if (plugin != nullptr && plugin->isEnabled())

  1501.             {

  1502.                 const uint hints(plugin->getHints());

  1503. 

  1504.                 if ((hints & PLUGIN_HAS_CUSTOM_UI) != 0 && (hints & PLUGIN_NEEDS_UI_MAIN_THREAD) != 0)

  1505.                 {

  1506.                     try {

  1507.                         plugin->uiIdle();

  1508.                     } CARLA_SAFE_EXCEPTION_CONTINUE("Plugin uiIdle");

  1509.                 }

  1510.             }

  1511.         }

  1512. 

  1513. #ifdef HAVE_LIBLO

  1514.         pData->osc.idle();

  1515. #endif

  1516. 

  1517.         fUiServer.idlePipe();

  1518. 

  1519.         if (fUiServer.isPipeRunning())

  1520.         {

  1521.             const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1522. #ifndef CARLA_OS_WIN

  1523.             const EngineTimeInfo& timeInfo(pData->timeInfo);

  1524.             const ScopedLocale csl;

  1525. 

  1526.             // send transport

  1527.             fUiServer.writeAndFixMessage("transport");

  1528.             fUiServer.writeMessage(timeInfo.playing ? "true\n" : "false\n");

  1529. 

  1530.             if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1531.             {

  1532.                 std::sprintf(fTmpBuf, P_UINT64 ":%i:%i:%i\n", timeInfo.frame, timeInfo.bbt.bar, timeInfo.bbt.beat, timeInfo.bbt.tick);

  1533.                 fUiServer.writeMessage(fTmpBuf);

  1534.                 std::sprintf(fTmpBuf, "%f\n", timeInfo.bbt.beatsPerMinute);

  1535.                 fUiServer.writeMessage(fTmpBuf);

  1536.             }

  1537.             else

  1538.             {

  1539.                 std::sprintf(fTmpBuf, P_UINT64 ":0:0:0\n", timeInfo.frame);

  1540.                 fUiServer.writeMessage(fTmpBuf);

  1541.                 fUiServer.writeMessage("0.0\n");

  1542.             }

  1543. 

  1544.             fUiServer.flushMessages();

  1545. #endif

  1546. 

  1547.             // send peaks and param outputs for all plugins

  1548.             for (uint i=0; i < pData->curPluginCount; ++i)

  1549.             {

  1550.                 const EnginePluginData& plugData(pData->plugins[i]);

  1551.                 const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1552. 

  1553.                 std::sprintf(fTmpBuf, "PEAKS_%i\n", i);

  1554.                 fUiServer.writeMessage(fTmpBuf);

  1555. 

  1556.                 std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);

  1557.                 fUiServer.writeMessage(fTmpBuf);

  1558.                 fUiServer.flushMessages();

  1559. 

  1560.                 for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1561.                 {

  1562.                     if (! plugin->isParameterOutput(j))

  1563.                         continue;

  1564. 

  1565.                     std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1566.                     fUiServer.writeMessage(fTmpBuf);

  1567.                     std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));

  1568.                     fUiServer.writeMessage(fTmpBuf);

  1569.                     fUiServer.flushMessages();

  1570.                 }

  1571.             }

  1572.         }

  1573. 

  1574.         switch (fUiServer.getAndResetUiState())

  1575.         {

  1576.         case CarlaExternalUI::UiNone:

  1577.         case CarlaExternalUI::UiShow:

  1578.             break;

  1579.         case CarlaExternalUI::UiCrashed:

  1580.             pHost->dispatcher(pHost->handle, NATIVE_HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1581.             break;

  1582.         case CarlaExternalUI::UiHide:

  1583.             pHost->ui_closed(pHost->handle);

  1584.             fUiServer.stopPipeServer(2000);

  1585.             break;

  1586.         }

  1587.     }

  1588. 

  1589.     // -------------------------------------------------------------------

  1590.     // Plugin state calls

  1591. 

  1592.     char* getState() const

  1593.     {

  1594.         MemoryOutputStream out;

  1595.         saveProjectInternal(out);

  1596.         return strdup(out.toString().toRawUTF8());

  1597.     }

  1598. 

  1599.     void setState(const char* const data)

  1600.     {

  1601.         // remove all plugins first, no lock

  1602.         fIsRunning = false;

  1603.         removeAllPlugins();

  1604.         fIsRunning = true;

  1605. 

  1606.         // stopped during removeAllPlugins()

  1607.         if (! pData->thread.isThreadRunning())

  1608.             pData->thread.startThread();

  1609. 

  1610.         fOptionsForced = true;

  1611.         const String state(data);

  1612.         XmlDocument xml(state);

  1613.         loadProjectInternal(xml);

  1614.     }

  1615. 

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

  1617. 

  1618. public:

  1619.     #define handlePtr ((CarlaEngineNative*)handle)

  1620. 

  1621.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1622.     {

  1623.         return new CarlaEngineNative(host, false);

  1624.     }

  1625. 

  1626.     static NativePluginHandle _instantiatePatchbay(const NativeHostDescriptor* host)

  1627.     {

  1628.         return new CarlaEngineNative(host, true);

  1629.     }

  1630. 

  1631.     static NativePluginHandle _instantiatePatchbay3s(const NativeHostDescriptor* host)

  1632.     {

  1633.         return new CarlaEngineNative(host, true, 3, 2);

  1634.     }

  1635. 

  1636.     static NativePluginHandle _instantiatePatchbay16(const NativeHostDescriptor* host)

  1637.     {

  1638.         return new CarlaEngineNative(host, true, 16);

  1639.     }

  1640. 

  1641.     static NativePluginHandle _instantiatePatchbay32(const NativeHostDescriptor* host)

  1642.     {

  1643.         return new CarlaEngineNative(host, true, 32);

  1644.     }

  1645. 

  1646.     static void _cleanup(NativePluginHandle handle)

  1647.     {

  1648.         delete handlePtr;

  1649.     }

  1650. 

  1651.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1652.     {

  1653.         return handlePtr->getParameterCount();

  1654.     }

  1655. 

  1656.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1657.     {

  1658.         return handlePtr->getParameterInfo(index);

  1659.     }

  1660. 

  1661.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1662.     {

  1663.         return handlePtr->getParameterValue(index);

  1664.     }

  1665. 

  1666.     static const char* _get_parameter_text(NativePluginHandle handle, uint32_t index /*, float value*/)

  1667.     {

  1668.         return handlePtr->getParameterText(index /*, value*/);

  1669.     }

  1670. 

  1671.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1672.     {

  1673.         return handlePtr->getMidiProgramCount();

  1674.     }

  1675. 

  1676.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1677.     {

  1678.         return handlePtr->getMidiProgramInfo(index);

  1679.     }

  1680. 

  1681.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1682.     {

  1683.         handlePtr->setParameterValue(index, value);

  1684.     }

  1685. 

  1686.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1687.     {

  1688.         handlePtr->setMidiProgram(channel, bank, program);

  1689.     }

  1690. 

  1691.     static void _ui_show(NativePluginHandle handle, bool show)

  1692.     {

  1693.         handlePtr->uiShow(show);

  1694.     }

  1695. 

  1696.     static void _ui_idle(NativePluginHandle handle)

  1697.     {

  1698.         handlePtr->uiIdle();

  1699.     }

  1700. 

  1701.     static void _activate(NativePluginHandle handle)

  1702.     {

  1703.         handlePtr->activate();

  1704.     }

  1705. 

  1706.     static void _deactivate(NativePluginHandle handle)

  1707.     {

  1708.         handlePtr->deactivate();

  1709.     }

  1710. 

  1711.     static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1712.     {

  1713.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1714.     }

  1715. 

  1716.     static char* _get_state(NativePluginHandle handle)

  1717.     {

  1718.         return handlePtr->getState();

  1719.     }

  1720. 

  1721.     static void _set_state(NativePluginHandle handle, const char* data)

  1722.     {

  1723.         handlePtr->setState(data);

  1724.     }

  1725. 

  1726.     static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1727.     {

  1728.         switch(opcode)

  1729.         {

  1730.         case NATIVE_PLUGIN_OPCODE_NULL:

  1731.             return 0;

  1732.         case NATIVE_PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1733.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1734.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1735.             return 0;

  1736.         case NATIVE_PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1737.             CARLA_SAFE_ASSERT_RETURN(opt > 0.0, 0);

  1738.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1739.             return 0;

  1740.         case NATIVE_PLUGIN_OPCODE_OFFLINE_CHANGED:

  1741.             handlePtr->offlineModeChanged(value != 0);

  1742.             return 0;

  1743.         case NATIVE_PLUGIN_OPCODE_UI_NAME_CHANGED:

  1744.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1745.             return 0;

  1746.         }

  1747. 

  1748.         return 0;

  1749. 

  1750.         // unused

  1751.         (void)index;

  1752.         (void)ptr;

  1753.     }

  1754. 

  1755.     // -------------------------------------------------------------------

  1756. 

  1757.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)

  1758.     {

  1759.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);

  1760.     }

  1761. 

  1762.     // -------------------------------------------------------------------

  1763. 

  1764.     #undef handlePtr

  1765. 

  1766. private:

  1767.     const NativeHostDescriptor* const pHost;

  1768. 

  1769.     const bool kIsPatchbay; // rack if false

  1770.     bool fIsActive, fIsRunning;

  1771.     CarlaEngineNativeUI fUiServer;

  1772. 

  1773.     bool fOptionsForced;

  1774.     char fTmpBuf[STR_MAX+1];

  1775. 

  1776.     CarlaPlugin* _getFirstPlugin() const noexcept

  1777.     {

  1778.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1779.             return nullptr;

  1780. 

  1781.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1782. 

  1783.         if (plugin == nullptr || ! plugin->isEnabled())

  1784.             return nullptr;

  1785. 

  1786.         return pData->plugins[0].plugin;

  1787.     }

  1788. 

  1789.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1790. };

  1791. 

  1792. // -----------------------------------------------------------------------

  1793. 

  1794. static const NativePluginDescriptor carlaRackDesc = {

  1795.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1796.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1797.                                                   |NATIVE_PLUGIN_HAS_UI

  1798.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1799.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  1800.                                                   |NATIVE_PLUGIN_USES_STATE

  1801.                                                   |NATIVE_PLUGIN_USES_TIME),

  1802.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1803.     /* audioIns  */ 2,

  1804.     /* audioOuts */ 2,

  1805.     /* midiIns   */ 1,

  1806.     /* midiOuts  */ 1,

  1807.     /* paramIns  */ 0,

  1808.     /* paramOuts */ 0,

  1809.     /* name      */ "Carla-Rack",

  1810.     /* label     */ "carlarack",

  1811.     /* maker     */ "falkTX",

  1812.     /* copyright */ "GNU GPL v2+",

  1813.     CarlaEngineNative::_instantiateRack,

  1814.     CarlaEngineNative::_cleanup,

  1815.     CarlaEngineNative::_get_parameter_count,

  1816.     CarlaEngineNative::_get_parameter_info,

  1817.     CarlaEngineNative::_get_parameter_value,

  1818.     CarlaEngineNative::_get_parameter_text,

  1819.     CarlaEngineNative::_get_midi_program_count,

  1820.     CarlaEngineNative::_get_midi_program_info,

  1821.     CarlaEngineNative::_set_parameter_value,

  1822.     CarlaEngineNative::_set_midi_program,

  1823.     /* _set_custom_data        */ nullptr,

  1824.     CarlaEngineNative::_ui_show,

  1825.     CarlaEngineNative::_ui_idle,

  1826.     /* _ui_set_parameter_value */ nullptr,

  1827.     /* _ui_set_midi_program    */ nullptr,

  1828.     /* _ui_set_custom_data     */ nullptr,

  1829.     CarlaEngineNative::_activate,

  1830.     CarlaEngineNative::_deactivate,

  1831.     CarlaEngineNative::_process,

  1832.     CarlaEngineNative::_get_state,

  1833.     CarlaEngineNative::_set_state,

  1834.     CarlaEngineNative::_dispatcher

  1835. };

  1836. 

  1837. static const NativePluginDescriptor carlaPatchbayDesc = {

  1838.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1839.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1840.                                                   |NATIVE_PLUGIN_HAS_UI

  1841.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1842.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  1843.                                                   |NATIVE_PLUGIN_USES_STATE

  1844.                                                   |NATIVE_PLUGIN_USES_TIME),

  1845.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1846.     /* audioIns  */ 2,

  1847.     /* audioOuts */ 2,

  1848.     /* midiIns   */ 1,

  1849.     /* midiOuts  */ 1,

  1850.     /* paramIns  */ 0,

  1851.     /* paramOuts */ 0,

  1852.     /* name      */ "Carla-Patchbay",

  1853.     /* label     */ "carlapatchbay",

  1854.     /* maker     */ "falkTX",

  1855.     /* copyright */ "GNU GPL v2+",

  1856.     CarlaEngineNative::_instantiatePatchbay,

  1857.     CarlaEngineNative::_cleanup,

  1858.     CarlaEngineNative::_get_parameter_count,

  1859.     CarlaEngineNative::_get_parameter_info,

  1860.     CarlaEngineNative::_get_parameter_value,

  1861.     CarlaEngineNative::_get_parameter_text,

  1862.     CarlaEngineNative::_get_midi_program_count,

  1863.     CarlaEngineNative::_get_midi_program_info,

  1864.     CarlaEngineNative::_set_parameter_value,

  1865.     CarlaEngineNative::_set_midi_program,

  1866.     /* _set_custom_data        */ nullptr,

  1867.     CarlaEngineNative::_ui_show,

  1868.     CarlaEngineNative::_ui_idle,

  1869.     /* _ui_set_parameter_value */ nullptr,

  1870.     /* _ui_set_midi_program    */ nullptr,

  1871.     /* _ui_set_custom_data     */ nullptr,

  1872.     CarlaEngineNative::_activate,

  1873.     CarlaEngineNative::_deactivate,

  1874.     CarlaEngineNative::_process,

  1875.     CarlaEngineNative::_get_state,

  1876.     CarlaEngineNative::_set_state,

  1877.     CarlaEngineNative::_dispatcher

  1878. };

  1879. 

  1880. static const NativePluginDescriptor carlaPatchbay3sDesc = {

  1881.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1882.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1883.                                                   |NATIVE_PLUGIN_HAS_UI

  1884.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1885.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  1886.                                                   |NATIVE_PLUGIN_USES_STATE

  1887.                                                   |NATIVE_PLUGIN_USES_TIME),

  1888.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1889.     /* audioIns  */ 3,

  1890.     /* audioOuts */ 2,

  1891.     /* midiIns   */ 1,

  1892.     /* midiOuts  */ 1,

  1893.     /* paramIns  */ 0,

  1894.     /* paramOuts */ 0,

  1895.     /* name      */ "Carla-Patchbay (sidechain)",

  1896.     /* label     */ "carlapatchbay3s",

  1897.     /* maker     */ "falkTX",

  1898.     /* copyright */ "GNU GPL v2+",

  1899.     CarlaEngineNative::_instantiatePatchbay3s,

  1900.     CarlaEngineNative::_cleanup,

  1901.     CarlaEngineNative::_get_parameter_count,

  1902.     CarlaEngineNative::_get_parameter_info,

  1903.     CarlaEngineNative::_get_parameter_value,

  1904.     CarlaEngineNative::_get_parameter_text,

  1905.     CarlaEngineNative::_get_midi_program_count,

  1906.     CarlaEngineNative::_get_midi_program_info,

  1907.     CarlaEngineNative::_set_parameter_value,

  1908.     CarlaEngineNative::_set_midi_program,

  1909.     /* _set_custom_data        */ nullptr,

  1910.     CarlaEngineNative::_ui_show,

  1911.     CarlaEngineNative::_ui_idle,

  1912.     /* _ui_set_parameter_value */ nullptr,

  1913.     /* _ui_set_midi_program    */ nullptr,

  1914.     /* _ui_set_custom_data     */ nullptr,

  1915.     CarlaEngineNative::_activate,

  1916.     CarlaEngineNative::_deactivate,

  1917.     CarlaEngineNative::_process,

  1918.     CarlaEngineNative::_get_state,

  1919.     CarlaEngineNative::_set_state,

  1920.     CarlaEngineNative::_dispatcher

  1921. };

  1922. 

  1923. static const NativePluginDescriptor carlaPatchbay16Desc = {

  1924.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1925.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1926.                                                   |NATIVE_PLUGIN_HAS_UI

  1927.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1928.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  1929.                                                   |NATIVE_PLUGIN_USES_STATE

  1930.                                                   |NATIVE_PLUGIN_USES_TIME),

  1931.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1932.     /* audioIns  */ 16,

  1933.     /* audioOuts */ 16,

  1934.     /* midiIns   */ 1,

  1935.     /* midiOuts  */ 1,

  1936.     /* paramIns  */ 0,

  1937.     /* paramOuts */ 0,

  1938.     /* name      */ "Carla-Patchbay (16chan)",

  1939.     /* label     */ "carlapatchbay16",

  1940.     /* maker     */ "falkTX",

  1941.     /* copyright */ "GNU GPL v2+",

  1942.     CarlaEngineNative::_instantiatePatchbay16,

  1943.     CarlaEngineNative::_cleanup,

  1944.     CarlaEngineNative::_get_parameter_count,

  1945.     CarlaEngineNative::_get_parameter_info,

  1946.     CarlaEngineNative::_get_parameter_value,

  1947.     CarlaEngineNative::_get_parameter_text,

  1948.     CarlaEngineNative::_get_midi_program_count,

  1949.     CarlaEngineNative::_get_midi_program_info,

  1950.     CarlaEngineNative::_set_parameter_value,

  1951.     CarlaEngineNative::_set_midi_program,

  1952.     /* _set_custom_data        */ nullptr,

  1953.     CarlaEngineNative::_ui_show,

  1954.     CarlaEngineNative::_ui_idle,

  1955.     /* _ui_set_parameter_value */ nullptr,

  1956.     /* _ui_set_midi_program    */ nullptr,

  1957.     /* _ui_set_custom_data     */ nullptr,

  1958.     CarlaEngineNative::_activate,

  1959.     CarlaEngineNative::_deactivate,

  1960.     CarlaEngineNative::_process,

  1961.     CarlaEngineNative::_get_state,

  1962.     CarlaEngineNative::_set_state,

  1963.     CarlaEngineNative::_dispatcher

  1964. };

  1965. 

  1966. static const NativePluginDescriptor carlaPatchbay32Desc = {

  1967.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1968.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1969.                                                   |NATIVE_PLUGIN_HAS_UI

  1970.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1971.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  1972.                                                   |NATIVE_PLUGIN_USES_STATE

  1973.                                                   |NATIVE_PLUGIN_USES_TIME),

  1974.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1975.     /* audioIns  */ 32,

  1976.     /* audioOuts */ 32,

  1977.     /* midiIns   */ 1,

  1978.     /* midiOuts  */ 1,

  1979.     /* paramIns  */ 0,

  1980.     /* paramOuts */ 0,

  1981.     /* name      */ "Carla-Patchbay (32chan)",

  1982.     /* label     */ "carlapatchbay32",

  1983.     /* maker     */ "falkTX",

  1984.     /* copyright */ "GNU GPL v2+",

  1985.     CarlaEngineNative::_instantiatePatchbay32,

  1986.     CarlaEngineNative::_cleanup,

  1987.     CarlaEngineNative::_get_parameter_count,

  1988.     CarlaEngineNative::_get_parameter_info,

  1989.     CarlaEngineNative::_get_parameter_value,

  1990.     CarlaEngineNative::_get_parameter_text,

  1991.     CarlaEngineNative::_get_midi_program_count,

  1992.     CarlaEngineNative::_get_midi_program_info,

  1993.     CarlaEngineNative::_set_parameter_value,

  1994.     CarlaEngineNative::_set_midi_program,

  1995.     /* _set_custom_data        */ nullptr,

  1996.     CarlaEngineNative::_ui_show,

  1997.     CarlaEngineNative::_ui_idle,

  1998.     /* _ui_set_parameter_value */ nullptr,

  1999.     /* _ui_set_midi_program    */ nullptr,

  2000.     /* _ui_set_custom_data     */ nullptr,

  2001.     CarlaEngineNative::_activate,

  2002.     CarlaEngineNative::_deactivate,

  2003.     CarlaEngineNative::_process,

  2004.     CarlaEngineNative::_get_state,

  2005.     CarlaEngineNative::_set_state,

  2006.     CarlaEngineNative::_dispatcher

  2007. };

  2008. 

  2009. CARLA_BACKEND_END_NAMESPACE

  2010. 

  2011. // -----------------------------------------------------------------------

  2012. 

  2013. CARLA_EXPORT

  2014. void carla_register_native_plugin_carla();

  2015. 

  2016. void carla_register_native_plugin_carla()

  2017. {

  2018.     CARLA_BACKEND_USE_NAMESPACE;

  2019.     carla_register_native_plugin(&carlaRackDesc);

  2020.     carla_register_native_plugin(&carlaPatchbayDesc);

  2021.     carla_register_native_plugin(&carlaPatchbay3sDesc);

  2022.     carla_register_native_plugin(&carlaPatchbay16Desc);

  2023.     carla_register_native_plugin(&carlaPatchbay32Desc);

  2024. }

  2025. 

  2026. // -----------------------------------------------------------------------

  2027. 

  2028. CARLA_EXPORT

  2029. const NativePluginDescriptor* carla_get_native_rack_plugin();

  2030. const NativePluginDescriptor* carla_get_native_rack_plugin()

  2031. {

  2032.     // if this is called then we're running as special plugin

  2033.     gNeedsJuceHandling = true;

  2034. 

  2035.     CARLA_BACKEND_USE_NAMESPACE;

  2036.     return &carlaRackDesc;

  2037. }

  2038. 

  2039. CARLA_EXPORT

  2040. const NativePluginDescriptor* carla_get_native_patchbay_plugin();

  2041. const NativePluginDescriptor* carla_get_native_patchbay_plugin()

  2042. {

  2043.     // if this is called then we're running as special plugin

  2044.     gNeedsJuceHandling = true;

  2045. 

  2046.     CARLA_BACKEND_USE_NAMESPACE;

  2047.     return &carlaPatchbayDesc;

  2048. }

  2049. 

  2050. // -----------------------------------------------------------------------

  2051. // Extra stuff for linking purposes

  2052. 

  2053. #ifdef CARLA_PLUGIN_EXPORT

  2054. 

  2055. CARLA_BACKEND_START_NAMESPACE

  2056. 

  2057. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  2058. 

  2059. # if defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN)

  2060. CarlaEngine*       CarlaEngine::newJuce(const AudioApi)           { return nullptr; }

  2061. uint               CarlaEngine::getJuceApiCount()                 { return 0;       }

  2062. const char*        CarlaEngine::getJuceApiName(const uint)        { return nullptr; }

  2063. const char* const* CarlaEngine::getJuceApiDeviceNames(const uint) { return nullptr; }

  2064. const EngineDriverDeviceInfo* CarlaEngine::getJuceDeviceInfo(const uint, const char* const) { return nullptr; }

  2065. # else

  2066. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi)           { return nullptr; }

  2067. uint               CarlaEngine::getRtAudioApiCount()                 { return 0;       }

  2068. const char*        CarlaEngine::getRtAudioApiName(const uint)        { return nullptr; }

  2069. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const uint) { return nullptr; }

  2070. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const uint, const char* const) { return nullptr; }

  2071. # endif

  2072. 

  2073. CARLA_BACKEND_END_NAMESPACE

  2074. 

  2075. #include "CarlaHostCommon.cpp"

  2076. #include "CarlaPluginUI.cpp"

  2077. #include "CarlaDssiUtils.cpp"

  2078. #include "CarlaPatchbayUtils.cpp"

  2079. #include "CarlaPipeUtils.cpp"

  2080. #include "CarlaStateUtils.cpp"

  2081. #include "CarlaJuceEvents.cpp"

  2082. 

  2083. #endif

  2084. 

  2085. // -----------------------------------------------------------------------