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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. 

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

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

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

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

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

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

  197. 

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

  199.             {

  200.                 delete[] filename;

  201.                 filename = nullptr;

  202.             }

  203. 

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

  205.             {

  206.                 delete[] name;

  207.                 name = nullptr;

  208.             }

  209. 

  210.             ok = fEngine->addPlugin(static_cast<BinaryType>(btype), static_cast<PluginType>(ptype), filename, name, label, uniqueId, nullptr);

  211. 

  212.             if (filename != nullptr)

  213.                 delete[] filename;

  214.             if (name != nullptr)

  215.                 delete[] name;

  216.             delete[] label;

  217.         }

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

  219.         {

  220.             uint32_t pluginId;

  221. 

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

  223. 

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

  225.         }

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

  227.         {

  228.             ok = fEngine->removeAllPlugins();

  229.         }

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

  231.         {

  232.             uint32_t pluginId;

  233.             const char* newName;

  234. 

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

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

  237. 

  238.             // TODO

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

  240. 

  241.             delete[] newName;

  242.         }

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

  244.         {

  245.             uint32_t pluginId;

  246. 

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

  248. 

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

  250.         }

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

  252.         {

  253.             uint32_t pluginId;

  254. 

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

  256. 

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

  258.         }

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

  260.         {

  261.             uint32_t pluginIdA, pluginIdB;

  262. 

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

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

  265. 

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

  267.         }

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

  269.         {

  270.             uint32_t pluginId;

  271.             const char* filename;

  272. 

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

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

  275. 

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

  277.                 plugin->loadStateFromFile(filename);

  278. 

  279.             delete[] filename;

  280.         }

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

  282.         {

  283.             uint32_t pluginId;

  284.             const char* filename;

  285. 

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

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

  288. 

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

  290.                 plugin->saveStateToFile(filename);

  291. 

  292.             delete[] filename;

  293.         }

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

  295.         {

  296.             uint32_t pluginId, option;

  297.             bool yesNo;

  298. 

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

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

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

  302. 

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

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

  305.         }

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

  307.         {

  308.             uint32_t pluginId;

  309.             bool onOff;

  310. 

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

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

  313. 

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

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

  316.         }

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

  318.         {

  319.             uint32_t pluginId;

  320.             float value;

  321. 

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

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

  324. 

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

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

  327.         }

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

  329.         {

  330.             uint32_t pluginId;

  331.             float value;

  332. 

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

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

  335. 

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

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

  338.         }

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

  340.         {

  341.             uint32_t pluginId;

  342.             float value;

  343. 

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

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

  346. 

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

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

  349.         }

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

  351.         {

  352.             uint32_t pluginId;

  353.             float value;

  354. 

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

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

  357. 

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

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

  360.         }

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

  362.         {

  363.             uint32_t pluginId;

  364.             float value;

  365. 

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

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

  368. 

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

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

  371.         }

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

  373.         {

  374.             uint32_t pluginId;

  375.             int32_t channel;

  376. 

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

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

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

  380. 

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

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

  383.         }

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

  385.         {

  386.             uint32_t pluginId, parameterId;

  387.             float value;

  388. 

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

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

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

  392. 

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

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

  395.         }

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

  397.         {

  398.             uint32_t pluginId, parameterId, channel;

  399. 

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

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

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

  403.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  404. 

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

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

  407.         }

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

  409.         {

  410.             uint32_t pluginId, parameterId;

  411.             int32_t cc;

  412. 

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

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

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

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

  417. 

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

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

  420.         }

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

  422.         {

  423.             uint32_t pluginId;

  424.             int32_t index;

  425. 

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

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

  428. 

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

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

  431.         }

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

  433.         {

  434.             uint32_t pluginId;

  435.             int32_t index;

  436. 

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

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

  439. 

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

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

  442.         }

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

  444.         {

  445.             uint32_t pluginId;

  446.             const char* type;

  447.             const char* key;

  448.             const char* value;

  449. 

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

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

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

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

  454. 

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

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

  457. 

  458.             delete[] type;

  459.             delete[] key;

  460.             delete[] value;

  461.         }

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

  463.         {

  464.             uint32_t pluginId;

  465.             const char* cdata;

  466. 

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

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

  469. 

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

  471.             {

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

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

  474.             }

  475. 

  476.             delete[] cdata;

  477.         }

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

  479.         {

  480.             uint32_t pluginId;

  481. 

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

  483. 

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

  485.                 plugin->prepareForSave();

  486.         }

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

  488.         {

  489.             uint32_t pluginId;

  490. 

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

  492. 

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

  494.                 plugin->resetParameters();

  495.         }

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

  497.         {

  498.             uint32_t pluginId;

  499. 

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

  501. 

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

  503.                 plugin->randomizeParameters();

  504.         }

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

  506.         {

  507.             uint32_t pluginId, channel, note, velocity;

  508. 

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

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

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

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

  513.             CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  514.             CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_VALUE, true);

  515.             CARLA_SAFE_ASSERT_RETURN(velocity < MAX_MIDI_VALUE, true);

  516. 

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

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

  519.         }

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

  521.         {

  522.             uint32_t pluginId;

  523.             bool yesNo;

  524. 

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

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

  527. 

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

  529.                 plugin->showCustomUI(yesNo);

  530.         }

  531.         else

  532.         {

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

  534.             return false;

  535.         }

  536. 

  537.         if (! ok)

  538.         {

  539.             const CarlaMutexLocker cml(getPipeLock());

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

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

  542.             flushMessages();

  543.         }

  544. 

  545.         return true;

  546.     }

  547. 

  548. private:

  549.     CarlaEngine* const fEngine;

  550. 

  551.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  552. };

  553. 

  554. // -----------------------------------------------------------------------

  555. 

  556. class CarlaEngineNative : public CarlaEngine

  557. {

  558. public:

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

  560.         : CarlaEngine(),

  561.           pHost(host),

  562.           kIsPatchbay(isPatchbay),

  563.           fIsActive(false),

  564.           fIsRunning(false),

  565.           fUiServer(this),

  566.           fOptionsForced(false),

  567.           leakDetector_CarlaEngineNative()

  568.     {

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

  570. 

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

  572. 

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

  574.             juce::initialiseJuce_GUI();

  575. 

  576.         carla_zeroChar(fTmpBuf, STR_MAX+1);

  577. 

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

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

  580. 

  581.         if (outChan == 0)

  582.             outChan = inChan;

  583. 

  584.         // set-up engine

  585.         if (kIsPatchbay)

  586.         {

  587.             pData->options.processMode         = ENGINE_PROCESS_MODE_PATCHBAY;

  588.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  589.             pData->options.forceStereo         = false;

  590.             pData->options.preferPluginBridges = false;

  591.             pData->options.preferUiBridges     = false;

  592.             init("Carla-Patchbay");

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

  594.         }

  595.         else

  596.         {

  597.             CARLA_SAFE_ASSERT(inChan == 2);

  598.             CARLA_SAFE_ASSERT(outChan == 2);

  599.             pData->options.processMode         = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;

  600.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  601.             pData->options.forceStereo         = true;

  602.             pData->options.preferPluginBridges = false;

  603.             pData->options.preferUiBridges     = false;

  604.             init("Carla-Rack");

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

  606.         }

  607. 

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

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

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

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

  612. 

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

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

  615. 

  616.         setCallback(_ui_server_callback, this);

  617.     }

  618. 

  619.     ~CarlaEngineNative() override

  620.     {

  621.         CARLA_SAFE_ASSERT(! fIsActive);

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

  623. 

  624.         pData->aboutToClose = true;

  625.         fIsRunning = false;

  626. 

  627.         removeAllPlugins();

  628.         //runPendingRtEvents();

  629.         close();

  630. 

  631.         pData->graph.destroy();

  632. 

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

  634.             juce::shutdownJuce_GUI();

  635. 

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

  637.     }

  638. 

  639. protected:

  640.     // -------------------------------------

  641.     // CarlaEngine virtual calls

  642. 

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

  644.     {

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

  646. 

  647.         fIsRunning = true;

  648. 

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

  650.         {

  651.             close();

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

  653.             return false;

  654.         }

  655. 

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

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

  658. 

  659.         return true;

  660.     }

  661. 

  662.     bool close() override

  663.     {

  664.         fIsRunning = false;

  665.         CarlaEngine::close();

  666.         return true;

  667.     }

  668. 

  669.     bool isRunning() const noexcept override

  670.     {

  671.         return fIsRunning;

  672.     }

  673. 

  674.     bool isOffline() const noexcept override

  675.     {

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

  677.     }

  678. 

  679.     EngineType getType() const noexcept override

  680.     {

  681.         return kEngineTypePlugin;

  682.     }

  683. 

  684.     const char* getCurrentDriverName() const noexcept override

  685.     {

  686.         return "Plugin";

  687.     }

  688. 

  689.     // -------------------------------------------------------------------

  690. 

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

  692.     {

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

  694.         {

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

  696.             return retName;

  697.         }

  698. 

  699.         return nullptr;

  700.     }

  701. 

  702.     // -------------------------------------------------------------------

  703. 

  704.     void bufferSizeChanged(const uint32_t newBufferSize)

  705.     {

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

  707.             return;

  708. 

  709.         {

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

  711. 

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

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

  714.             fUiServer.writeMessage(fTmpBuf);

  715.             fUiServer.flushMessages();

  716.         }

  717. 

  718.         pData->bufferSize = newBufferSize;

  719.         CarlaEngine::bufferSizeChanged(newBufferSize);

  720.     }

  721. 

  722.     void sampleRateChanged(const double newSampleRate)

  723.     {

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

  725.             return;

  726. 

  727.         {

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

  729.             const ScopedLocale csl;

  730. 

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

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

  733.             fUiServer.writeMessage(fTmpBuf);

  734.             fUiServer.flushMessages();

  735.         }

  736. 

  737.         pData->sampleRate = newSampleRate;

  738.         CarlaEngine::sampleRateChanged(newSampleRate);

  739.     }

  740. 

  741.     // -------------------------------------------------------------------

  742. 

  743.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  744.     {

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

  746. 

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

  748. 

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

  750.         fUiServer.writeMessage(fTmpBuf);

  751. 

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

  753.         fUiServer.writeMessage(fTmpBuf);

  754. 

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

  756.         {

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

  758.             fUiServer.writeAndFixMessage(fTmpBuf);

  759.         }

  760.         else

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

  762. 

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

  764.         {

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

  766.             fUiServer.writeAndFixMessage(fTmpBuf);

  767.         }

  768.         else

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

  770. 

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

  772.         {

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

  774.             fUiServer.writeAndFixMessage(fTmpBuf);

  775.         }

  776.         else

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

  778. 

  779.         plugin->getRealName(fTmpBuf);

  780.         fUiServer.writeAndFixMessage(fTmpBuf);

  781. 

  782.         plugin->getLabel(fTmpBuf);

  783.         fUiServer.writeAndFixMessage(fTmpBuf);

  784. 

  785.         plugin->getMaker(fTmpBuf);

  786.         fUiServer.writeAndFixMessage(fTmpBuf);

  787. 

  788.         plugin->getCopyright(fTmpBuf);

  789.         fUiServer.writeAndFixMessage(fTmpBuf);

  790. 

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

  792.         fUiServer.writeMessage(fTmpBuf);

  793. 

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

  795.         fUiServer.writeMessage(fTmpBuf);

  796. 

  797.         fUiServer.flushMessages();

  798.     }

  799. 

  800.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  801.     {

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

  803.         const ScopedLocale csl;

  804. 

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

  806. 

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

  808.         {

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

  810.             fUiServer.writeMessage(fTmpBuf);

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

  812.             fUiServer.writeMessage(fTmpBuf);

  813.             fUiServer.flushMessages();

  814.         }

  815. 

  816.         uint32_t ins, outs, count;

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

  818.         count = plugin->getParameterCount();

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

  820.         fUiServer.writeMessage(fTmpBuf);

  821. 

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

  823.         {

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

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

  826. 

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

  828.             fUiServer.writeMessage(fTmpBuf);

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

  830.             fUiServer.writeMessage(fTmpBuf);

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

  832.             fUiServer.writeAndFixMessage(fTmpBuf);

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

  834.             fUiServer.writeAndFixMessage(fTmpBuf);

  835. 

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

  837.             fUiServer.writeMessage(fTmpBuf);

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

  839.             fUiServer.writeMessage(fTmpBuf);

  840. 

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

  842.             fUiServer.writeMessage(fTmpBuf);

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

  844.             fUiServer.writeMessage(fTmpBuf);

  845.         }

  846. 

  847.         fUiServer.flushMessages();

  848.     }

  849. 

  850.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  851.     {

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

  853. 

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

  855. 

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

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

  858.         fUiServer.writeMessage(fTmpBuf);

  859. 

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

  861.         {

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

  863.             fUiServer.writeMessage(fTmpBuf);

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

  865.             fUiServer.writeAndFixMessage(fTmpBuf);

  866.         }

  867. 

  868.         fUiServer.flushMessages();

  869. 

  870.         count = plugin->getMidiProgramCount();

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

  872.         fUiServer.writeMessage(fTmpBuf);

  873. 

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

  875.         {

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

  877.             fUiServer.writeMessage(fTmpBuf);

  878. 

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

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

  881.             fUiServer.writeMessage(fTmpBuf);

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

  883.             fUiServer.writeAndFixMessage(fTmpBuf);

  884.         }

  885. 

  886.         fUiServer.flushMessages();

  887.     }

  888. 

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

  890.     {

  891.         if (! fIsRunning)

  892.             return;

  893.         if (! fUiServer.isPipeRunning())

  894.             return;

  895. 

  896.         CarlaPlugin* plugin;

  897. 

  898.         switch (action)

  899.         {

  900.         case ENGINE_CALLBACK_RELOAD_INFO:

  901.             plugin = getPlugin(pluginId);

  902. 

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

  904.             {

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

  906.                 uiServerSendPluginInfo(plugin);

  907.             }

  908.             break;

  909. 

  910.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  911.             plugin = getPlugin(pluginId);

  912. 

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

  914.             {

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

  916.                 uiServerSendPluginParameters(plugin);

  917.             }

  918.             break;

  919. 

  920.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  921.             plugin = getPlugin(pluginId);

  922. 

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

  924.             {

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

  926.                 uiServerSendPluginPrograms(plugin);

  927.             }

  928.             break;

  929. 

  930.         case ENGINE_CALLBACK_RELOAD_ALL:

  931.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  932.             plugin = getPlugin(pluginId);

  933. 

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

  935.             {

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

  937.                 uiServerSendPluginInfo(plugin);

  938.                 uiServerSendPluginParameters(plugin);

  939.                 uiServerSendPluginPrograms(plugin);

  940.             }

  941.             break;

  942. 

  943.         default:

  944.             break;

  945.         }

  946. 

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

  948.         const ScopedLocale csl;

  949. 

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

  951.         fUiServer.writeMessage(fTmpBuf);

  952. 

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

  954.         fUiServer.writeMessage(fTmpBuf);

  955. 

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

  957.         fUiServer.writeMessage(fTmpBuf);

  958. 

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

  960.         fUiServer.writeMessage(fTmpBuf);

  961. 

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

  963.         fUiServer.writeMessage(fTmpBuf);

  964. 

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

  966. 

  967.         fUiServer.flushMessages();

  968.     }

  969. 

  970.     void uiServerInfo()

  971.     {

  972.         CARLA_SAFE_ASSERT_RETURN(fIsRunning,);

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

  974. 

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

  976. 

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

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

  979.         fUiServer.writeMessage(fTmpBuf);

  980. 

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

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

  983.         fUiServer.writeMessage(fTmpBuf);

  984. 

  985.         const ScopedLocale csl;

  986. 

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

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

  989.         fUiServer.writeMessage(fTmpBuf);

  990. 

  991.         fUiServer.flushMessages();

  992.     }

  993. 

  994.     void uiServerOptions()

  995.     {

  996.         CARLA_SAFE_ASSERT_RETURN(fIsRunning,);

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

  998. 

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

  1000.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1001. 

  1002.         const char* const optionsForcedStr(fOptionsForced ? "true\n" : "false\n");

  1003.         const std::size_t optionsForcedStrSize(fOptionsForced ? 5 : 6);

  1004. 

  1005.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PROCESS_MODE);

  1006.         fUiServer.writeMessage(fTmpBuf);

  1007.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1008.         std::sprintf(fTmpBuf, "%i\n", options.processMode);

  1009.         fUiServer.writeMessage(fTmpBuf);

  1010.         fUiServer.flushMessages();

  1011. 

  1012.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_TRANSPORT_MODE);

  1013.         fUiServer.writeMessage(fTmpBuf);

  1014.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1015.         std::sprintf(fTmpBuf, "%i\n", options.transportMode);

  1016.         fUiServer.writeMessage(fTmpBuf);

  1017.         fUiServer.flushMessages();

  1018. 

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

  1020.         fUiServer.writeMessage(fTmpBuf);

  1021.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1022.         fUiServer.writeMessage(options.forceStereo ? "true\n" : "false\n");

  1023.         fUiServer.flushMessages();

  1024. 

  1025.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PREFER_PLUGIN_BRIDGES);

  1026.         fUiServer.writeMessage(fTmpBuf);

  1027.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1028.         fUiServer.writeMessage(options.preferPluginBridges ? "true\n" : "false\n");

  1029.         fUiServer.flushMessages();

  1030. 

  1031.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PREFER_UI_BRIDGES);

  1032.         fUiServer.writeMessage(fTmpBuf);

  1033.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1034.         fUiServer.writeMessage(options.preferUiBridges ? "true\n" : "false\n");

  1035.         fUiServer.flushMessages();

  1036. 

  1037.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_UIS_ALWAYS_ON_TOP);

  1038.         fUiServer.writeMessage(fTmpBuf);

  1039.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1040.         fUiServer.writeMessage(options.uisAlwaysOnTop ? "true\n" : "false\n");

  1041.         fUiServer.flushMessages();

  1042. 

  1043.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_MAX_PARAMETERS);

  1044.         fUiServer.writeMessage(fTmpBuf);

  1045.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1046.         std::sprintf(fTmpBuf, "%i\n", options.maxParameters);

  1047.         fUiServer.writeMessage(fTmpBuf);

  1048.         fUiServer.flushMessages();

  1049. 

  1050.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_UI_BRIDGES_TIMEOUT);

  1051.         fUiServer.writeMessage(fTmpBuf);

  1052.         fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize);

  1053.         std::sprintf(fTmpBuf, "%i\n", options.uiBridgesTimeout);

  1054.         fUiServer.writeMessage(fTmpBuf);

  1055.         fUiServer.flushMessages();

  1056. 

  1057.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PATH_BINARIES);

  1058.         fUiServer.writeMessage(fTmpBuf);

  1059.         fUiServer.writeMessage("true\n", 5);

  1060.         std::sprintf(fTmpBuf, "%s\n", options.binaryDir);

  1061.         fUiServer.writeMessage(fTmpBuf);

  1062.         fUiServer.flushMessages();

  1063. 

  1064.         std::sprintf(fTmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PATH_RESOURCES);

  1065.         fUiServer.writeMessage(fTmpBuf);

  1066.         fUiServer.writeMessage("true\n", 5);

  1067.         std::sprintf(fTmpBuf, "%s\n", options.resourceDir);

  1068.         fUiServer.writeMessage(fTmpBuf);

  1069.         fUiServer.flushMessages();

  1070.     }

  1071. 

  1072.     // -------------------------------------------------------------------

  1073.     // Plugin parameter calls

  1074. 

  1075.     uint32_t getParameterCount() const

  1076.     {

  1077.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1078.             return plugin->getParameterCount();

  1079. 

  1080.         return 0;

  1081.     }

  1082. 

  1083.     const NativeParameter* getParameterInfo(const uint32_t index) const

  1084.     {

  1085.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1086.         {

  1087.             if (index < plugin->getParameterCount())

  1088.             {

  1089.                 static NativeParameter param;

  1090.                 static char strBufName[STR_MAX+1];

  1091.                 static char strBufUnit[STR_MAX+1];

  1092. 

  1093.                 const ParameterData& paramData(plugin->getParameterData(index));

  1094.                 const ParameterRanges& paramRanges(plugin->getParameterRanges(index));

  1095. 

  1096.                 plugin->getParameterName(index, strBufName);

  1097.                 plugin->getParameterUnit(index, strBufUnit);

  1098. 

  1099.                 uint hints = 0x0;

  1100. 

  1101.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  1102.                     hints |= NATIVE_PARAMETER_IS_BOOLEAN;

  1103.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  1104.                     hints |= NATIVE_PARAMETER_IS_INTEGER;

  1105.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  1106.                     hints |= NATIVE_PARAMETER_IS_LOGARITHMIC;

  1107.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  1108.                     hints |= NATIVE_PARAMETER_IS_AUTOMABLE;

  1109.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  1110.                     hints |= NATIVE_PARAMETER_USES_SAMPLE_RATE;

  1111.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  1112.                     hints |= NATIVE_PARAMETER_USES_SCALEPOINTS;

  1113.                 if (paramData.hints & PARAMETER_USES_CUSTOM_TEXT)

  1114.                     hints |= NATIVE_PARAMETER_USES_CUSTOM_TEXT;

  1115. 

  1116.                 if (paramData.type == PARAMETER_INPUT || paramData.type == PARAMETER_OUTPUT)

  1117.                 {

  1118.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  1119.                         hints |= NATIVE_PARAMETER_IS_ENABLED;

  1120.                     if (paramData.type == PARAMETER_OUTPUT)

  1121.                         hints |= NATIVE_PARAMETER_IS_OUTPUT;

  1122.                 }

  1123. 

  1124.                 param.hints = static_cast<NativeParameterHints>(hints);

  1125.                 param.name  = strBufName;

  1126.                 param.unit  = strBufUnit;

  1127.                 param.ranges.def = paramRanges.def;

  1128.                 param.ranges.min = paramRanges.min;

  1129.                 param.ranges.max = paramRanges.max;

  1130.                 param.ranges.step = paramRanges.step;

  1131.                 param.ranges.stepSmall = paramRanges.stepSmall;

  1132.                 param.ranges.stepLarge = paramRanges.stepLarge;

  1133.                 param.scalePointCount = 0; // TODO

  1134.                 param.scalePoints = nullptr;

  1135. 

  1136.                 return &param;

  1137.             }

  1138.         }

  1139. 

  1140.         return nullptr;

  1141.     }

  1142. 

  1143.     float getParameterValue(const uint32_t index) const

  1144.     {

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

  1146.         {

  1147.             if (index < plugin->getParameterCount())

  1148.                 return plugin->getParameterValue(index);

  1149.         }

  1150. 

  1151.         return 0.0f;

  1152.     }

  1153. 

  1154.     const char* getParameterText(const uint32_t index /*, const float value*/) const

  1155.     {

  1156.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1157.         {

  1158.             if (index < plugin->getParameterCount())

  1159.             {

  1160.                 static char strBuf[STR_MAX+1];

  1161.                 carla_zeroChar(strBuf, STR_MAX+1);

  1162. 

  1163.                 plugin->getParameterText(index, /*value,*/ strBuf);

  1164. 

  1165.                 return strBuf;

  1166.             }

  1167.         }

  1168. 

  1169.         return nullptr;

  1170.     }

  1171. 

  1172.     // -------------------------------------------------------------------

  1173.     // Plugin midi-program calls

  1174. 

  1175.     uint32_t getMidiProgramCount() const

  1176.     {

  1177.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1178.             return plugin->getMidiProgramCount();

  1179. 

  1180.         return 0;

  1181.     }

  1182. 

  1183.     const NativeMidiProgram* getMidiProgramInfo(const uint32_t index) const

  1184.     {

  1185.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1186.         {

  1187.             if (index < plugin->getMidiProgramCount())

  1188.             {

  1189.                 static NativeMidiProgram midiProg;

  1190. 

  1191.                 {

  1192.                     const MidiProgramData& midiProgData(plugin->getMidiProgramData(index));

  1193. 

  1194.                     midiProg.bank    = midiProgData.bank;

  1195.                     midiProg.program = midiProgData.program;

  1196.                     midiProg.name    = midiProgData.name;

  1197.                 }

  1198. 

  1199.                 return &midiProg;

  1200.             }

  1201.         }

  1202. 

  1203.         return nullptr;

  1204.     }

  1205. 

  1206.     // -------------------------------------------------------------------

  1207.     // Plugin state calls

  1208. 

  1209.     void setParameterValue(const uint32_t index, const float value)

  1210.     {

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

  1212.         {

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

  1214.                 plugin->setParameterValue(index, value, false, false, false);

  1215.         }

  1216.     }

  1217. 

  1218.     void setMidiProgram(const uint8_t, const uint32_t bank, const uint32_t program)

  1219.     {

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

  1221.             plugin->setMidiProgramById(bank, program, false, false, false);

  1222.     }

  1223. 

  1224.     // -------------------------------------------------------------------

  1225.     // Plugin process calls

  1226. 

  1227.     void activate()

  1228.     {

  1229. #if 0

  1230.         for (uint32_t i=0; i < pData->curPluginCount; ++i)

  1231.         {

  1232.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1233. 

  1234.             if (plugin == nullptr || ! plugin->isEnabled())

  1235.                 continue;

  1236. 

  1237.             plugin->setActive(true, true, false);

  1238.         }

  1239. #endif

  1240.         fIsActive = true;

  1241.     }

  1242. 

  1243.     void deactivate()

  1244.     {

  1245.         fIsActive = false;

  1246. #if 0

  1247.         for (uint32_t i=0; i < pData->curPluginCount; ++i)

  1248.         {

  1249.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1250. 

  1251.             if (plugin == nullptr || ! plugin->isEnabled())

  1252.                 continue;

  1253. 

  1254.             plugin->setActive(false, true, false);

  1255.         }

  1256. #endif

  1257. 

  1258.         // just in case

  1259.         //runPendingRtEvents();

  1260.     }

  1261. 

  1262.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames, const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1263.     {

  1264.         const PendingRtEventsRunner prt(this);

  1265. 

  1266.         // ---------------------------------------------------------------

  1267.         // Time Info

  1268. 

  1269.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1270. 

  1271.         pData->timeInfo.playing = timeInfo->playing;

  1272.         pData->timeInfo.frame   = timeInfo->frame;

  1273.         pData->timeInfo.usecs   = timeInfo->usecs;

  1274.         pData->timeInfo.valid   = 0x0;

  1275. 

  1276.         if (timeInfo->bbt.valid)

  1277.         {

  1278.             pData->timeInfo.valid |= EngineTimeInfo::kValidBBT;

  1279. 

  1280.             pData->timeInfo.bbt.bar = timeInfo->bbt.bar;

  1281.             pData->timeInfo.bbt.beat = timeInfo->bbt.beat;

  1282.             pData->timeInfo.bbt.tick = timeInfo->bbt.tick;

  1283.             pData->timeInfo.bbt.barStartTick = timeInfo->bbt.barStartTick;

  1284. 

  1285.             pData->timeInfo.bbt.beatsPerBar = timeInfo->bbt.beatsPerBar;

  1286.             pData->timeInfo.bbt.beatType = timeInfo->bbt.beatType;

  1287. 

  1288.             pData->timeInfo.bbt.ticksPerBeat = timeInfo->bbt.ticksPerBeat;

  1289.             pData->timeInfo.bbt.beatsPerMinute = timeInfo->bbt.beatsPerMinute;

  1290.         }

  1291. 

  1292.         // ---------------------------------------------------------------

  1293.         // Do nothing if no plugins and rack mode

  1294. 

  1295.         if (pData->curPluginCount == 0 && ! kIsPatchbay)

  1296.         {

  1297.             FloatVectorOperations::copy(outBuffer[0], inBuffer[0], static_cast<int>(frames));

  1298.             FloatVectorOperations::copy(outBuffer[1], inBuffer[1], static_cast<int>(frames));

  1299.             return;

  1300.         }

  1301. 

  1302.         // ---------------------------------------------------------------

  1303.         // initialize events

  1304. 

  1305.         carla_zeroStruct<EngineEvent>(pData->events.in,  kMaxEngineEventInternalCount);

  1306.         carla_zeroStruct<EngineEvent>(pData->events.out, kMaxEngineEventInternalCount);

  1307. 

  1308.         // ---------------------------------------------------------------

  1309.         // events input (before processing)

  1310. 

  1311.         {

  1312.             uint32_t engineEventIndex = 0;

  1313. 

  1314.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kMaxEngineEventInternalCount; ++i)

  1315.             {

  1316.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1317.                 EngineEvent&           engineEvent(pData->events.in[engineEventIndex++]);

  1318. 

  1319.                 engineEvent.time = midiEvent.time;

  1320.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data);

  1321. 

  1322.                 if (engineEventIndex >= kMaxEngineEventInternalCount)

  1323.                     break;

  1324.             }

  1325.         }

  1326. 

  1327.         if (kIsPatchbay)

  1328.         {

  1329.             // -----------------------------------------------------------

  1330.             // process

  1331. 

  1332.             pData->graph.process(pData, inBuffer, outBuffer, frames);

  1333.         }

  1334.         else

  1335.         {

  1336.             // -----------------------------------------------------------

  1337.             // create audio buffers

  1338. 

  1339.             const float* inBuf[2]  = {  inBuffer[0],  inBuffer[1] };

  1340.             /* */ float* outBuf[2] = { outBuffer[0], outBuffer[1] };

  1341. 

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

  1343.             // process

  1344. 

  1345.             pData->graph.processRack(pData, inBuf, outBuf, frames);

  1346.         }

  1347. 

  1348.         // ---------------------------------------------------------------

  1349.         // events output (after processing)

  1350. 

  1351.         carla_zeroStruct<EngineEvent>(pData->events.in, kMaxEngineEventInternalCount);

  1352. 

  1353.         {

  1354.             NativeMidiEvent midiEvent;

  1355. 

  1356.             for (uint32_t i=0; i < kMaxEngineEventInternalCount; ++i)

  1357.             {

  1358.                 const EngineEvent& engineEvent(pData->events.out[i]);

  1359. 

  1360.                 if (engineEvent.type == kEngineEventTypeNull)

  1361.                     break;

  1362. 

  1363.                 midiEvent.time = engineEvent.time;

  1364. 

  1365.                 if (engineEvent.type == CarlaBackend::kEngineEventTypeControl)

  1366.                 {

  1367.                     midiEvent.port = 0;

  1368.                     engineEvent.ctrl.convertToMidiData(engineEvent.channel, midiEvent.size, midiEvent.data);

  1369.                 }

  1370.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1371.                 {

  1372.                     if (engineEvent.midi.size > 4 || engineEvent.midi.dataExt != nullptr)

  1373.                         continue;

  1374. 

  1375.                     midiEvent.port = engineEvent.midi.port;

  1376.                     midiEvent.size = engineEvent.midi.size;

  1377. 

  1378.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] + engineEvent.channel);

  1379. 

  1380.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1381.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1382.                 }

  1383.                 else

  1384.                 {

  1385.                     carla_stderr("Unknown event type...");

  1386.                     continue;

  1387.                 }

  1388. 

  1389.                 pHost->write_midi_event(pHost->handle, &midiEvent);

  1390.             }

  1391.         }

  1392.     }

  1393. 

  1394.     // -------------------------------------------------------------------

  1395.     // Plugin UI calls

  1396. 

  1397.     void uiShow(const bool show)

  1398.     {

  1399.         if (show)

  1400.         {

  1401.             if (fUiServer.isPipeRunning())

  1402.             {

  1403.                 fUiServer.writeFocusMessage();

  1404.                 return;

  1405.             }

  1406. 

  1407.             CarlaString path(pHost->resourceDir);

  1408. 

  1409.             if (kIsPatchbay)

  1410.                 path += CARLA_OS_SEP_STR "carla-plugin-patchbay";

  1411.             else

  1412.                 path += CARLA_OS_SEP_STR "carla-plugin";

  1413. #ifdef CARLA_OS_WIN

  1414.             path += ".exe";

  1415. #endif

  1416.             carla_stdout("Trying to start carla-plugin using \"%s\"", path.buffer());

  1417. 

  1418.             fUiServer.setData(path, pData->sampleRate, pHost->uiName);

  1419.             fUiServer.startPipeServer(false);

  1420. 

  1421.             uiServerInfo();

  1422.             uiServerOptions();

  1423.             uiServerCallback(ENGINE_CALLBACK_ENGINE_STARTED, 0, pData->options.processMode, pData->options.transportMode, 0.0f, "Plugin");

  1424. 

  1425.             fUiServer.writeShowMessage();

  1426. 

  1427.             for (uint i=0; i < pData->curPluginCount; ++i)

  1428.             {

  1429.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1430. 

  1431.                 if (plugin != nullptr && plugin->isEnabled())

  1432.                 {

  1433.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0.0f, plugin->getName());

  1434.                 }

  1435.             }

  1436. 

  1437.             if (kIsPatchbay)

  1438.                 patchbayRefresh(false);

  1439.         }

  1440.         else

  1441.         {

  1442.             fUiServer.stopPipeServer(5000);

  1443.         }

  1444.     }

  1445. 

  1446.     void uiIdle()

  1447.     {

  1448.         fUiServer.idlePipe();

  1449. 

  1450.         if (fUiServer.isPipeRunning())

  1451.         {

  1452.             const EngineTimeInfo& timeInfo(pData->timeInfo);

  1453.             const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1454.             const ScopedLocale csl;

  1455. 

  1456.             // send transport

  1457.             fUiServer.writeAndFixMessage("transport");

  1458.             fUiServer.writeMessage(timeInfo.playing ? "true\n" : "false\n");

  1459. 

  1460.             if (timeInfo.valid & EngineTimeInfo::kValidBBT)

  1461.             {

  1462.                 std::sprintf(fTmpBuf, P_UINT64 ":%i:%i:%i\n", timeInfo.frame, timeInfo.bbt.bar, timeInfo.bbt.beat, timeInfo.bbt.tick);

  1463.                 fUiServer.writeMessage(fTmpBuf);

  1464.                 std::sprintf(fTmpBuf, "%f\n", timeInfo.bbt.beatsPerMinute);

  1465.                 fUiServer.writeMessage(fTmpBuf);

  1466.             }

  1467.             else

  1468.             {

  1469.                 std::sprintf(fTmpBuf, P_UINT64 ":0:0:0\n", timeInfo.frame);

  1470.                 fUiServer.writeMessage(fTmpBuf);

  1471.                 fUiServer.writeMessage("0.0\n");

  1472.             }

  1473. 

  1474.             fUiServer.flushMessages();

  1475. 

  1476.             // send peaks and param outputs for all plugins

  1477.             for (uint i=0; i < pData->curPluginCount; ++i)

  1478.             {

  1479.                 const EnginePluginData& plugData(pData->plugins[i]);

  1480.                 const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1481. 

  1482.                 std::sprintf(fTmpBuf, "PEAKS_%i\n", i);

  1483.                 fUiServer.writeMessage(fTmpBuf);

  1484. 

  1485.                 std::sprintf(fTmpBuf, "%f:%f:%f:%f\n", plugData.insPeak[0], plugData.insPeak[1], plugData.outsPeak[0], plugData.outsPeak[1]);

  1486.                 fUiServer.writeMessage(fTmpBuf);

  1487.                 fUiServer.flushMessages();

  1488. 

  1489.                 for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1490.                 {

  1491.                     if (! plugin->isParameterOutput(j))

  1492.                         continue;

  1493. 

  1494.                     std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1495.                     fUiServer.writeMessage(fTmpBuf);

  1496.                     std::sprintf(fTmpBuf, "%f\n", plugin->getParameterValue(j));

  1497.                     fUiServer.writeMessage(fTmpBuf);

  1498.                     fUiServer.flushMessages();

  1499.                 }

  1500.             }

  1501.         }

  1502. 

  1503.         switch (fUiServer.getAndResetUiState())

  1504.         {

  1505.         case CarlaExternalUI::UiNone:

  1506.         case CarlaExternalUI::UiShow:

  1507.             break;

  1508.         case CarlaExternalUI::UiCrashed:

  1509.             pHost->dispatcher(pHost->handle, NATIVE_HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1510.             break;

  1511.         case CarlaExternalUI::UiHide:

  1512.             pHost->ui_closed(pHost->handle);

  1513.             fUiServer.stopPipeServer(2000);

  1514.             break;

  1515.         }

  1516.     }

  1517. 

  1518.     // -------------------------------------------------------------------

  1519.     // Plugin state calls

  1520. 

  1521.     char* getState() const

  1522.     {

  1523.         MemoryOutputStream out;

  1524.         saveProjectInternal(out);

  1525.         return strdup(out.toString().toRawUTF8());

  1526.     }

  1527. 

  1528.     void setState(const char* const data)

  1529.     {

  1530.         // remove all plugins first, no lock

  1531.         fIsRunning = false;

  1532.         removeAllPlugins();

  1533.         fIsRunning = true;

  1534. 

  1535.         // stopped during removeAllPlugins()

  1536.         if (! pData->thread.isThreadRunning())

  1537.             pData->thread.startThread();

  1538. 

  1539.         fOptionsForced = true;

  1540.         const String state(data);

  1541.         XmlDocument xml(state);

  1542.         loadProjectInternal(xml);

  1543.     }

  1544. 

  1545.     // -------------------------------------------------------------------

  1546. 

  1547. public:

  1548.     #define handlePtr ((CarlaEngineNative*)handle)

  1549. 

  1550.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1551.     {

  1552.         return new CarlaEngineNative(host, false);

  1553.     }

  1554. 

  1555.     static NativePluginHandle _instantiatePatchbay(const NativeHostDescriptor* host)

  1556.     {

  1557.         return new CarlaEngineNative(host, true);

  1558.     }

  1559. 

  1560.     static NativePluginHandle _instantiatePatchbay3s(const NativeHostDescriptor* host)

  1561.     {

  1562.         return new CarlaEngineNative(host, true, 3, 2);

  1563.     }

  1564. 

  1565.     static NativePluginHandle _instantiatePatchbay16(const NativeHostDescriptor* host)

  1566.     {

  1567.         return new CarlaEngineNative(host, true, 16);

  1568.     }

  1569. 

  1570.     static NativePluginHandle _instantiatePatchbay32(const NativeHostDescriptor* host)

  1571.     {

  1572.         return new CarlaEngineNative(host, true, 32);

  1573.     }

  1574. 

  1575.     static void _cleanup(NativePluginHandle handle)

  1576.     {

  1577.         delete handlePtr;

  1578.     }

  1579. 

  1580.     static void _idle(NativePluginHandle handle)

  1581.     {

  1582.         handlePtr->idle();

  1583.     }

  1584. 

  1585.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1586.     {

  1587.         return handlePtr->getParameterCount();

  1588.     }

  1589. 

  1590.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1591.     {

  1592.         return handlePtr->getParameterInfo(index);

  1593.     }

  1594. 

  1595.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1596.     {

  1597.         return handlePtr->getParameterValue(index);

  1598.     }

  1599. 

  1600.     static const char* _get_parameter_text(NativePluginHandle handle, uint32_t index /*, float value*/)

  1601.     {

  1602.         return handlePtr->getParameterText(index /*, value*/);

  1603.     }

  1604. 

  1605.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1606.     {

  1607.         return handlePtr->getMidiProgramCount();

  1608.     }

  1609. 

  1610.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1611.     {

  1612.         return handlePtr->getMidiProgramInfo(index);

  1613.     }

  1614. 

  1615.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1616.     {

  1617.         handlePtr->setParameterValue(index, value);

  1618.     }

  1619. 

  1620.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1621.     {

  1622.         handlePtr->setMidiProgram(channel, bank, program);

  1623.     }

  1624. 

  1625.     static void _ui_show(NativePluginHandle handle, bool show)

  1626.     {

  1627.         handlePtr->uiShow(show);

  1628.     }

  1629. 

  1630.     static void _ui_idle(NativePluginHandle handle)

  1631.     {

  1632.         handlePtr->uiIdle();

  1633.     }

  1634. 

  1635.     static void _activate(NativePluginHandle handle)

  1636.     {

  1637.         handlePtr->activate();

  1638.     }

  1639. 

  1640.     static void _deactivate(NativePluginHandle handle)

  1641.     {

  1642.         handlePtr->deactivate();

  1643.     }

  1644. 

  1645.     static void _process(NativePluginHandle handle, float** inBuffer, float** outBuffer, const uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1646.     {

  1647.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1648.     }

  1649. 

  1650.     static char* _get_state(NativePluginHandle handle)

  1651.     {

  1652.         return handlePtr->getState();

  1653.     }

  1654. 

  1655.     static void _set_state(NativePluginHandle handle, const char* data)

  1656.     {

  1657.         handlePtr->setState(data);

  1658.     }

  1659. 

  1660.     static intptr_t _dispatcher(NativePluginHandle handle, NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1661.     {

  1662.         switch(opcode)

  1663.         {

  1664.         case NATIVE_PLUGIN_OPCODE_NULL:

  1665.             return 0;

  1666.         case NATIVE_PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1667.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1668.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1669.             return 0;

  1670.         case NATIVE_PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1671.             CARLA_SAFE_ASSERT_RETURN(opt > 0.0, 0);

  1672.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1673.             return 0;

  1674.         case NATIVE_PLUGIN_OPCODE_OFFLINE_CHANGED:

  1675.             handlePtr->offlineModeChanged(value != 0);

  1676.             return 0;

  1677.         case NATIVE_PLUGIN_OPCODE_UI_NAME_CHANGED:

  1678.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1679.             return 0;

  1680.         }

  1681. 

  1682.         return 0;

  1683. 

  1684.         // unused

  1685.         (void)index;

  1686.         (void)ptr;

  1687.     }

  1688. 

  1689.     // -------------------------------------------------------------------

  1690. 

  1691.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId, int value1, int value2, float value3, const char* valueStr)

  1692.     {

  1693.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valueStr);

  1694.     }

  1695. 

  1696.     // -------------------------------------------------------------------

  1697. 

  1698.     #undef handlePtr

  1699. 

  1700. private:

  1701.     const NativeHostDescriptor* const pHost;

  1702. 

  1703.     const bool kIsPatchbay; // rack if false

  1704.     bool fIsActive, fIsRunning;

  1705.     CarlaEngineNativeUI fUiServer;

  1706. 

  1707.     bool fOptionsForced;

  1708.     char fTmpBuf[STR_MAX+1];

  1709. 

  1710.     CarlaPlugin* _getFirstPlugin() const noexcept

  1711.     {

  1712.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1713.             return nullptr;

  1714. 

  1715.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1716. 

  1717.         if (plugin == nullptr || ! plugin->isEnabled())

  1718.             return nullptr;

  1719. 

  1720.         return pData->plugins[0].plugin;

  1721.     }

  1722. 

  1723.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1724. };

  1725. 

  1726. // -----------------------------------------------------------------------

  1727. 

  1728. static const NativePluginDescriptor carlaRackDesc = {

  1729.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1730.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1731.                                                   |NATIVE_PLUGIN_HAS_UI

  1732.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1733.                                                   |NATIVE_PLUGIN_NEEDS_SINGLE_THREAD

  1734.                                                   |NATIVE_PLUGIN_NEEDS_DSP_IDLE

  1735.                                                   |NATIVE_PLUGIN_USES_STATE

  1736.                                                   |NATIVE_PLUGIN_USES_TIME),

  1737.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1738.     /* audioIns  */ 2,

  1739.     /* audioOuts */ 2,

  1740.     /* midiIns   */ 1,

  1741.     /* midiOuts  */ 1,

  1742.     /* paramIns  */ 0,

  1743.     /* paramOuts */ 0,

  1744.     /* name      */ "Carla-Rack",

  1745.     /* label     */ "carlarack",

  1746.     /* maker     */ "falkTX",

  1747.     /* copyright */ "GNU GPL v2+",

  1748.     CarlaEngineNative::_instantiateRack,

  1749.     CarlaEngineNative::_cleanup,

  1750.     CarlaEngineNative::_idle,

  1751.     CarlaEngineNative::_get_parameter_count,

  1752.     CarlaEngineNative::_get_parameter_info,

  1753.     CarlaEngineNative::_get_parameter_value,

  1754.     CarlaEngineNative::_get_parameter_text,

  1755.     CarlaEngineNative::_get_midi_program_count,

  1756.     CarlaEngineNative::_get_midi_program_info,

  1757.     CarlaEngineNative::_set_parameter_value,

  1758.     CarlaEngineNative::_set_midi_program,

  1759.     /* _set_custom_data        */ nullptr,

  1760.     CarlaEngineNative::_ui_show,

  1761.     CarlaEngineNative::_ui_idle,

  1762.     /* _ui_set_parameter_value */ nullptr,

  1763.     /* _ui_set_midi_program    */ nullptr,

  1764.     /* _ui_set_custom_data     */ nullptr,

  1765.     CarlaEngineNative::_activate,

  1766.     CarlaEngineNative::_deactivate,

  1767.     CarlaEngineNative::_process,

  1768.     CarlaEngineNative::_get_state,

  1769.     CarlaEngineNative::_set_state,

  1770.     CarlaEngineNative::_dispatcher

  1771. };

  1772. 

  1773. static const NativePluginDescriptor carlaPatchbayDesc = {

  1774.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1775.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1776.                                                   |NATIVE_PLUGIN_HAS_UI

  1777.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1778.                                                   |NATIVE_PLUGIN_NEEDS_SINGLE_THREAD

  1779.                                                   |NATIVE_PLUGIN_NEEDS_DSP_IDLE

  1780.                                                   |NATIVE_PLUGIN_USES_STATE

  1781.                                                   |NATIVE_PLUGIN_USES_TIME),

  1782.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1783.     /* audioIns  */ 2,

  1784.     /* audioOuts */ 2,

  1785.     /* midiIns   */ 1,

  1786.     /* midiOuts  */ 1,

  1787.     /* paramIns  */ 0,

  1788.     /* paramOuts */ 0,

  1789.     /* name      */ "Carla-Patchbay",

  1790.     /* label     */ "carlapatchbay",

  1791.     /* maker     */ "falkTX",

  1792.     /* copyright */ "GNU GPL v2+",

  1793.     CarlaEngineNative::_instantiatePatchbay,

  1794.     CarlaEngineNative::_cleanup,

  1795.     CarlaEngineNative::_idle,

  1796.     CarlaEngineNative::_get_parameter_count,

  1797.     CarlaEngineNative::_get_parameter_info,

  1798.     CarlaEngineNative::_get_parameter_value,

  1799.     CarlaEngineNative::_get_parameter_text,

  1800.     CarlaEngineNative::_get_midi_program_count,

  1801.     CarlaEngineNative::_get_midi_program_info,

  1802.     CarlaEngineNative::_set_parameter_value,

  1803.     CarlaEngineNative::_set_midi_program,

  1804.     /* _set_custom_data        */ nullptr,

  1805.     CarlaEngineNative::_ui_show,

  1806.     CarlaEngineNative::_ui_idle,

  1807.     /* _ui_set_parameter_value */ nullptr,

  1808.     /* _ui_set_midi_program    */ nullptr,

  1809.     /* _ui_set_custom_data     */ nullptr,

  1810.     CarlaEngineNative::_activate,

  1811.     CarlaEngineNative::_deactivate,

  1812.     CarlaEngineNative::_process,

  1813.     CarlaEngineNative::_get_state,

  1814.     CarlaEngineNative::_set_state,

  1815.     CarlaEngineNative::_dispatcher

  1816. };

  1817. 

  1818. static const NativePluginDescriptor carlaPatchbay3sDesc = {

  1819.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1820.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1821.                                                   |NATIVE_PLUGIN_HAS_UI

  1822.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1823.                                                   |NATIVE_PLUGIN_NEEDS_SINGLE_THREAD

  1824.                                                   |NATIVE_PLUGIN_NEEDS_DSP_IDLE

  1825.                                                   |NATIVE_PLUGIN_USES_STATE

  1826.                                                   |NATIVE_PLUGIN_USES_TIME),

  1827.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1828.     /* audioIns  */ 3,

  1829.     /* audioOuts */ 2,

  1830.     /* midiIns   */ 1,

  1831.     /* midiOuts  */ 1,

  1832.     /* paramIns  */ 0,

  1833.     /* paramOuts */ 0,

  1834.     /* name      */ "Carla-Patchbay (sidechain)",

  1835.     /* label     */ "carlapatchbay3s",

  1836.     /* maker     */ "falkTX",

  1837.     /* copyright */ "GNU GPL v2+",

  1838.     CarlaEngineNative::_instantiatePatchbay3s,

  1839.     CarlaEngineNative::_cleanup,

  1840.     CarlaEngineNative::_idle,

  1841.     CarlaEngineNative::_get_parameter_count,

  1842.     CarlaEngineNative::_get_parameter_info,

  1843.     CarlaEngineNative::_get_parameter_value,

  1844.     CarlaEngineNative::_get_parameter_text,

  1845.     CarlaEngineNative::_get_midi_program_count,

  1846.     CarlaEngineNative::_get_midi_program_info,

  1847.     CarlaEngineNative::_set_parameter_value,

  1848.     CarlaEngineNative::_set_midi_program,

  1849.     /* _set_custom_data        */ nullptr,

  1850.     CarlaEngineNative::_ui_show,

  1851.     CarlaEngineNative::_ui_idle,

  1852.     /* _ui_set_parameter_value */ nullptr,

  1853.     /* _ui_set_midi_program    */ nullptr,

  1854.     /* _ui_set_custom_data     */ nullptr,

  1855.     CarlaEngineNative::_activate,

  1856.     CarlaEngineNative::_deactivate,

  1857.     CarlaEngineNative::_process,

  1858.     CarlaEngineNative::_get_state,

  1859.     CarlaEngineNative::_set_state,

  1860.     CarlaEngineNative::_dispatcher

  1861. };

  1862. 

  1863. static const NativePluginDescriptor carlaPatchbay16Desc = {

  1864.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1865.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1866.                                                   |NATIVE_PLUGIN_HAS_UI

  1867.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1868.                                                   |NATIVE_PLUGIN_NEEDS_SINGLE_THREAD

  1869.                                                   |NATIVE_PLUGIN_NEEDS_DSP_IDLE

  1870.                                                   |NATIVE_PLUGIN_USES_STATE

  1871.                                                   |NATIVE_PLUGIN_USES_TIME),

  1872.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1873.     /* audioIns  */ 16,

  1874.     /* audioOuts */ 16,

  1875.     /* midiIns   */ 1,

  1876.     /* midiOuts  */ 1,

  1877.     /* paramIns  */ 0,

  1878.     /* paramOuts */ 0,

  1879.     /* name      */ "Carla-Patchbay (16chan)",

  1880.     /* label     */ "carlapatchbay16",

  1881.     /* maker     */ "falkTX",

  1882.     /* copyright */ "GNU GPL v2+",

  1883.     CarlaEngineNative::_instantiatePatchbay16,

  1884.     CarlaEngineNative::_cleanup,

  1885.     CarlaEngineNative::_idle,

  1886.     CarlaEngineNative::_get_parameter_count,

  1887.     CarlaEngineNative::_get_parameter_info,

  1888.     CarlaEngineNative::_get_parameter_value,

  1889.     CarlaEngineNative::_get_parameter_text,

  1890.     CarlaEngineNative::_get_midi_program_count,

  1891.     CarlaEngineNative::_get_midi_program_info,

  1892.     CarlaEngineNative::_set_parameter_value,

  1893.     CarlaEngineNative::_set_midi_program,

  1894.     /* _set_custom_data        */ nullptr,

  1895.     CarlaEngineNative::_ui_show,

  1896.     CarlaEngineNative::_ui_idle,

  1897.     /* _ui_set_parameter_value */ nullptr,

  1898.     /* _ui_set_midi_program    */ nullptr,

  1899.     /* _ui_set_custom_data     */ nullptr,

  1900.     CarlaEngineNative::_activate,

  1901.     CarlaEngineNative::_deactivate,

  1902.     CarlaEngineNative::_process,

  1903.     CarlaEngineNative::_get_state,

  1904.     CarlaEngineNative::_set_state,

  1905.     CarlaEngineNative::_dispatcher

  1906. };

  1907. 

  1908. static const NativePluginDescriptor carlaPatchbay32Desc = {

  1909.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  1910.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  1911.                                                   |NATIVE_PLUGIN_HAS_UI

  1912.                                                   |NATIVE_PLUGIN_NEEDS_FIXED_BUFFERS

  1913.                                                   |NATIVE_PLUGIN_NEEDS_SINGLE_THREAD

  1914.                                                   |NATIVE_PLUGIN_NEEDS_DSP_IDLE

  1915.                                                   |NATIVE_PLUGIN_USES_STATE

  1916.                                                   |NATIVE_PLUGIN_USES_TIME),

  1917.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  1918.     /* audioIns  */ 32,

  1919.     /* audioOuts */ 32,

  1920.     /* midiIns   */ 1,

  1921.     /* midiOuts  */ 1,

  1922.     /* paramIns  */ 0,

  1923.     /* paramOuts */ 0,

  1924.     /* name      */ "Carla-Patchbay (32chan)",

  1925.     /* label     */ "carlapatchbay32",

  1926.     /* maker     */ "falkTX",

  1927.     /* copyright */ "GNU GPL v2+",

  1928.     CarlaEngineNative::_instantiatePatchbay32,

  1929.     CarlaEngineNative::_cleanup,

  1930.     CarlaEngineNative::_idle,

  1931.     CarlaEngineNative::_get_parameter_count,

  1932.     CarlaEngineNative::_get_parameter_info,

  1933.     CarlaEngineNative::_get_parameter_value,

  1934.     CarlaEngineNative::_get_parameter_text,

  1935.     CarlaEngineNative::_get_midi_program_count,

  1936.     CarlaEngineNative::_get_midi_program_info,

  1937.     CarlaEngineNative::_set_parameter_value,

  1938.     CarlaEngineNative::_set_midi_program,

  1939.     /* _set_custom_data        */ nullptr,

  1940.     CarlaEngineNative::_ui_show,

  1941.     CarlaEngineNative::_ui_idle,

  1942.     /* _ui_set_parameter_value */ nullptr,

  1943.     /* _ui_set_midi_program    */ nullptr,

  1944.     /* _ui_set_custom_data     */ nullptr,

  1945.     CarlaEngineNative::_activate,

  1946.     CarlaEngineNative::_deactivate,

  1947.     CarlaEngineNative::_process,

  1948.     CarlaEngineNative::_get_state,

  1949.     CarlaEngineNative::_set_state,

  1950.     CarlaEngineNative::_dispatcher

  1951. };

  1952. 

  1953. CARLA_BACKEND_END_NAMESPACE

  1954. 

  1955. // -----------------------------------------------------------------------

  1956. 

  1957. CARLA_EXPORT

  1958. void carla_register_native_plugin_carla();

  1959. 

  1960. void carla_register_native_plugin_carla()

  1961. {

  1962.     CARLA_BACKEND_USE_NAMESPACE;

  1963.     carla_register_native_plugin(&carlaRackDesc);

  1964.     carla_register_native_plugin(&carlaPatchbayDesc);

  1965.     carla_register_native_plugin(&carlaPatchbay3sDesc);

  1966.     carla_register_native_plugin(&carlaPatchbay16Desc);

  1967.     carla_register_native_plugin(&carlaPatchbay32Desc);

  1968. }

  1969. 

  1970. // -----------------------------------------------------------------------

  1971. 

  1972. CARLA_EXPORT

  1973. const NativePluginDescriptor* carla_get_native_rack_plugin();

  1974. const NativePluginDescriptor* carla_get_native_rack_plugin()

  1975. {

  1976.     // if this is called then we're running as special plugin

  1977.     gNeedsJuceHandling = true;

  1978. 

  1979.     CARLA_BACKEND_USE_NAMESPACE;

  1980.     return &carlaRackDesc;

  1981. }

  1982. 

  1983. CARLA_EXPORT

  1984. const NativePluginDescriptor* carla_get_native_patchbay_plugin();

  1985. const NativePluginDescriptor* carla_get_native_patchbay_plugin()

  1986. {

  1987.     // if this is called then we're running as special plugin

  1988.     gNeedsJuceHandling = true;

  1989. 

  1990.     CARLA_BACKEND_USE_NAMESPACE;

  1991.     return &carlaPatchbayDesc;

  1992. }

  1993. 

  1994. // -----------------------------------------------------------------------

  1995. // Extra stuff for linking purposes

  1996. 

  1997. #ifdef CARLA_PLUGIN_EXPORT

  1998. 

  1999. CARLA_BACKEND_START_NAMESPACE

  2000. 

  2001. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  2002. 

  2003. # if defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN)

  2004. CarlaEngine*       CarlaEngine::newJuce(const AudioApi)           { return nullptr; }

  2005. uint               CarlaEngine::getJuceApiCount()                 { return 0;       }

  2006. const char*        CarlaEngine::getJuceApiName(const uint)        { return nullptr; }

  2007. const char* const* CarlaEngine::getJuceApiDeviceNames(const uint) { return nullptr; }

  2008. const EngineDriverDeviceInfo* CarlaEngine::getJuceDeviceInfo(const uint, const char* const) { return nullptr; }

  2009. # else

  2010. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi)           { return nullptr; }

  2011. uint               CarlaEngine::getRtAudioApiCount()                 { return 0;       }

  2012. const char*        CarlaEngine::getRtAudioApiName(const uint)        { return nullptr; }

  2013. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const uint) { return nullptr; }

  2014. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const uint, const char* const) { return nullptr; }

  2015. # endif

  2016. 

  2017. CARLA_BACKEND_END_NAMESPACE

  2018. 

  2019. #include "CarlaHostCommon.cpp"

  2020. #include "CarlaPluginUI.cpp"

  2021. #include "CarlaDssiUtils.cpp"

  2022. #include "CarlaPatchbayUtils.cpp"

  2023. #include "CarlaPipeUtils.cpp"

  2024. #include "CarlaStateUtils.cpp"

  2025. #include "CarlaJuceEvents.cpp"

  2026. 

  2027. #endif

  2028. 

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